A method (200) and a system (100, 100A) for identifying one or more textile machines (10) in a plant and editing the operational parameters thereof, the system comprising: a main processing unit (40) connected to a database unit (41) for storing data representative of the quality and efficiency of the processes performed by textile machines each having a unique identification code (80); first communication means (21, 23, 24; 22, 25, 24) to connect the electronic control unit of each textile machine to said main processing unit; second communication means (24', 26) to connect the main processing unit to a telecommunications network (27); at least one portable electronic device (50) provided with wireless communication means (51) and display interface means (52). The method comprising among others: detecting (203) the unique identification code (80) of a textile machine through the portable electronic device; generating (204) and displaying (205), on the display interface means (52), one or more selectable item graphical interfaces (300, 301, 302, 303, 304) comprising: an information module (350), comprising said data, and a parameter editing module (351) for editing the operational parameters of the identified textile machine.
The invention relates to a method (200; 300) for manufacturing an optical sensor (100; 100'; 100A) adapted to detect the characteristics of a thread or yarn (F) fed to a textile machine. The method comprises the steps of: - making available (201) a sensor module (50) of the optical sensor comprising: - an electronic board (1) which includes sensitive components (2, 2', 3) of the optical sensor and an electronic control circuit (4) connected to said sensitive components (2, 2', 3); - an electrical connection element (5; 5') connected to the electronic board to allow the connection of the electronic board to apparatuses external to the optical sensor; - placing and locking (202) said sensor module in an injection molding apparatus (30); - injecting (203), through said molding apparatus, a molten thermoplastic material onto the sensor module to completely coat said electronic board and at least one portion of said electrical connection element with said molten thermoplastic material; - cooling (204) said thermoplastic coating material to mold a body (10; 10') of the optical sensor adapted to encapsulate and seal said electronic board and said at least one portion of the electrical connection element.
A method for detecting the presence of one or more faulty and/or broken needles in a circular or rectilinear textile machine including a plurality of needles to which yarns are fed from yarn feed devices associated with that machine, each yarn being fed to the textile machine with at least one of its tension, feed speed and quantity fed characteristics being kept monitored and equal to a constant value during the production of an article or part thereof, with the provision of monitoring apparatus for monitoring the at least one characteristic capable of monitoring its value throughout the stage of feeding to the textile machine; provision is made for monitoring the tension and the feed speed of the yarn to identify a periodic variation in the same indicating the existence of at least one broken or faulty needle in the textile machine. A system for implementing this method.
A method for detecting a characteristic of a textile or metal thread fed to an operating machine, by the generation of a light signal impacting the thread to create a shadow on an optical sensor device connected to means for monitoring a characteristic of the thread on the basis of an electrical signal emitted by such sensor device as a function of the shadow generated on said sensor device by the thread itself, the characteristic being a physical characteristic of the thread such as its diameter or a characteristic of the feed of the thread when in movement, such as its speed. The signal may be detected in analog mode or a digital mode, the signal detected in the digital mode providing real time calibration of the signal detected in analog mode to generate an electrical signal used by the monitoring means to monitor the characteristics of the thread.
B65H 61/00 - Applications of devices for metering predetermined lengths of running material
B65H 63/06 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to presence of irregularities in running material, e.g. for severing the material at irregularities
D02H 13/00 - Details of machines of the other groups of this subclass
D04B 35/10 - Indicating, warning, or safety devices, e.g. stop motions
G01B 11/10 - Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
09 - Scientific and electric apparatus and instruments
Goods & Services
Measuring, signalling, checking (supervision) apparatus and instruments; Electronic control devices and instruments for textile machines; Thread guiding devices; Control devices for feeding threads into textile machines; Control devices for feeding wires or cables of metal into operating machines; Devices and apparatus for quality control of threads, wires or cables of metal and monitoring systems for textile machines and operating machines.
09 - Scientific and electric apparatus and instruments
Goods & Services
Measuring, signalling, checking (supervision) apparatus and instruments; Electronic control devices and instruments for textile machines; Thread guiding devices; Control devices for feeding threads into textile machines; Control devices for feeding wires or cables of metal into operating machines; Devices and apparatus for quality control of threads, wires or cables of metal and monitoring systems for textile machines and operating machines.
12.
METHOD AND IMPROVED YARN FEEDER SYSTEM AND DEVICE FOR OPTIMISING YARN FEED TO A TEXTILE MACHINE OPERATING HIGHLY DISCONTINUOUSLY OR WITH ALTERNATING MOTION
Method and system using a device for feeding yarn to a textile machine, operating discontinuously or with alternating motion, and a device compensating for changes in conditions for feeding or taking up yarn by the textile machine, the compensator device including a movable compensator that performs this compensation to maintain constant yarn tension even when conditions for feeding or taking up yarn change, the movable compensator being rigid and connected to an electric actuator, a control unit of this actuator capable of detecting displacement of the movable compensator from a predetermined resting position when there is a change in take-up or feeding of the yarn and capable of returning the movable compensator to the resting position after such change. Provision is made for continuously detecting yarn tension and operating the electric actuator to maintain tension constant. The compensator device used in this system operating according to the method.
B65H 59/36 - Floating elements compensating for irregularities in supply or take-up of material
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
13.
METHOD AND SYSTEM TO DETECT THE PRESENCE OF A BROKEN NEEDLE IN A NEEDLE TEXTILE MACHINE
A method for detecting the presence of one or more faulty and/or broken needles in a circular or rectilinear textile machine (4) comprising a plurality of needles (6) to which yarns (F) are fed from yarn feed devices (1) associated with that machine, each yarn (F) being fed to the textile machine (4) with at least one of its tension, feed speed and quantity fed characteristics being kept monitored and equal to a constant value during the production of an article or part thereof, with the provision of monitoring means (9) for monitoring said at least one characteristic (F) capable of monitoring its value throughout the stage of feeding to the textile machine; provision is made for monitoring the tension and the feed speed of the yarn (F) to identify a periodic variation in the same indicating the existence of at least one broken or faulty needle in the textile machine. A system for implementing this method is also claimed.
Method and system for feeding a twisted braided metal cable or flat wire from a corresponding support without altering the structure or shape of the wire
Method and system for feeding a twisted metal cable braided into a plurality of braids or a flat wire from a support or spool to a winder or winding machine, including unwinding the cable or wire from the spool, measuring a property of the cable or wire from among its tension, velocity and quantity, possible adjustment of the property and feeding the cable or wire to the machine with the property constant. The cable or wire is unwound in a controlled way in a direction at right angles to the axis of the spool directly from such spool or through a return member which receives the cable or wire from the spool from which it is unwound in an uncontrolled way, such controlled unwinding preventing the cable changing the structure of its braids through loosening or stretching and the wire undergoes torsion before its property is measured.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
METHOD AND IMPROVED YARN FEEDER SYSTEM AND DEVICE FOR OPTIMISING YARN FEED TO A TEXTILE MACHINE OPERATING HIGHLY DISCONTINUOUSLY OR WITH ALTERNATING MOTION
A method and a system according to the invention comprise the use of a device (2) for feeding yarn (F) to a textile machine (T), operating discontinuously or with alternating motion, and a device (1) compensating for changes in the conditions for feeding or taking up the yarn (F) by the textile machine (T), said compensator device (1) including a movable compensating means (13) that performs this compensation to maintain a constant tension in the yarn (F) even when the aforementioned change in the conditions for feeding or taking up the yarn occurs, said compensating means (13) being rigid and connected to an electric actuator, a control unit of this actuator being capable of detecting displacement of said compensating means (13) from a predetermined resting position when there is a change in take-up or feeding of the yarn and being capable of returning said compensating means (13) to the resting position after such a change. Provision is made for continuously detecting the yarn tension and operating the electric actuator to maintain this tension at a constant value.
B65H 51/20 - Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
B65H 51/22 - Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
B65H 59/36 - Floating elements compensating for irregularities in supply or take-up of material
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
METHOD AND SYSTEM FOR FEEDING A TWISTED BRAIDED METAL CABLE OR FLAT WIRE FROM A CORRESPONDING SUPPORT WITHOUT ALTERING THE STRUCTURE OR SHAPE OF THE WIRE
A method for feeding a twisted metal cable (3) braided into a plurality of braids or a flat wire from a support or spool (2) to a winder or winding machine (5), said feed comprising unwinding the cable or wire (3) from the spool (2), measuring at least one property of the cable or wire from among its tension, velocity and quantity, possible adjustment of said property and feeding the cable or wire to said machine with the aforesaid said property being held constant. The cable or wire is unwound in a controlled way in a direction at right angles to the axis (W) of the spool (2) directly from such spool (2) or through a return member (10) which receives the cable or wire from the spool (2) from which it is unwound in an uncontrolled way, such controlled unwinding preventing the cable (3) changing the structure of its braids through loosening or stretching and that said wire undergoes torsion before its property is measured. The system implementing such method is also claimed.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
A storage yarn feeder includes a body having a portion or drum onto which winds a yarn forming at least one coil, the yarn coming from a reel, being provided with a braking organ cooperating with the drum to brake the yarn leaving the drum, the braking organ including braking features capable of cooperating with the yarn when the yarn detaches from the drum as it leaves the feeder and heads towards a textile machine. The drum includes a first and a second portion, the latter being capable of supporting the yarn and being separable from the first portion to be capable of being replaced, the first portion being connected to the body of the feeder.
D03D 47/27 - Drive or guide mechanisms for weft inserting
18.
Method for detecting and remotely managing sensors and/or devices for feeding textile and/or metallic yarns installed on one or more textile machines, and system thereof
A method and system detect and remotely manage sensors and/or devices for feeding textile and/or metallic yarns on textile machines. Each textile machine includes an electronic control unit electrically connected to the sensors and/or feeding devices for receiving identifiers associated with a sensor and/or feeding device, and data and operating parameters representing a sensor and/or feeding device operating state. A first communication system is associated with the electronic control unit. Wireless communication between the electronic control unit and a portable electronic device is by a second wireless communication system with a display interface. The electronic control unit transmits the identifiers to the portable electronic device. The portable electronic device processes the identifiers to generate menus with selectable entries associated with the textile machines. Each menu represents the number/type of sensors and/or feeding devices installed. The main menu is displayed with selectable entries on the portable electronic device display interface.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
D01H 13/00 - Other common constructional features, details or accessories
A method for detecting a characteristic of a textile or metal thread (F) fed to an operating machine (M), said method comprising the generation of a light signal impacting the thread which creates a shadow on an optical sensor device connected to means (8) for monitoring a characteristic of the thread on the basis of an electrical signal emitted by such sensor device as a function of the shadow generated on said sensor device by the thread (F) itself, said characteristic being a physical characteristic of the thread such as its diameter or a characteristic of the feed of the thread when in movement, such as its speed. It is provided that the signal detected by said sensor device (2) comprises a signal detected in analog mode and a signal detected in digital mode, the signal detected in digital mode providing real time calibration of the signal detected in analog mode so as to generate an electrical signal used by the monitoring means (8) to monitor the characteristics of the thread. The system operating according to this method is also claimed.
A modular element for creels comprises a structure (2) having a face or side (2B) on which there is located a support (6) to support at least two spools or bobbins (B) of yarn in head-to-tail connection, said structure (2) being modularly couplable to other similar structures (2) to allow several yarns to be fed to a textile machine, the yarn (F) being unwound from one (B100) of said bobbins, while the other bobbin is in a waiting position; said support (6) rotates about an axis (W) at right angles to a face or side (2B) of the structure, the support (6) comprising at least two arms each capable of supporting a corresponding bobbin and projecting from a load-bearing portion (8) attached to the structure (2) and rotating about said axis (W), the support (6) rotating when one of the bobbins (B100) from which the yarn (F) is being unwound runs out in order to allow it to be replaced with a full bobbin (B), feed of yarn (F) continuing from the other bobbin already associated with said support.
B65H 49/12 - Package-supporting devices for one operative package and one or more reserve packages the reserve packages being mounted to permit manual or automatic transfer to operating position
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
D02H 1/00 - Creels, i.e. apparatus for supplying a multiplicity of individual threads
Method and system for managing and controlling the feeding of at least one thread to a textile machine as a function of the operating step of the latter
Method and system for managing and controlling feeding of at least one thread to a textile machine as a function of the machine operating step in product production or thread processing, such production or processing providing for a succession of steps corresponding to obtaining product parts or treating thread. The thread fed to the machine by a feeder at constant tension and/or speed and/or controlled by a sensor which monitors sliding or inherent characteristic thereof such as tension, speed, diameter, quantity and color. The sensor and/or feeder controlled by a setting controller. The setting controller receiving synchronization signals from the machine and detecting—according to the latter—the operating steps and thus product or production status. The operation setting programmed as a function of operating steps. The machine generates a unique synchronization signal, for each operating step, independently from step length.
Accumulation-type thread feeder including: a body, which bears a rotary drum on which turns of thread from a spool are wound; a tension sensor for detecting value of tension of exiting thread and a detector for detecting thread quantity accumulated on the drum; a light-reflecting element on the drum or functionally associated therewith, such light generated by light a generator borne by a support arranged alongside the drum, the support associated with a detector to detect light reflected by the reflecting element, the reflected light varying as a function of the quantity of thread wound on the rotary drum, the detection allowing detection of such thread quantity. The detector is a light-sensitive member directly receiving the light reflected by the reflecting element along the entire surface of the drum, the member allowing determination of thread density on the drum.
The invention relates to a method (100) for monitoring and controlling the unwinding of a thread (F) from a reel (11) and for supplying said thread to a textile machine (10) by means of a supply device (15). The supply device (15) comprises: an electronic control unit (3); a thread collection and supply unit (1) moved by an electric motor driven by the electronic control unit (3); first sensor means (2) associated with the thread collection and supply unit (1) configured to detect a first piece of data (d1) indicative of a current driving torque applied to the thread collection and supply unit (1); second sensor means (4) configured to detect a second piece of data (d2) indicative of a current tension value of the thread (F) supplied to the textile machine (10). The method comprises the following steps : - providing (101) the electronic control unit (3) with said first piece of data (d1) and said second piece of data (d2); calculating (102) a first numeric indicator (TI) representative of the driving torque values applied to the electric motor to move the thread collection and supply unit (1), each variation of the first numeric indicator (TI) being representative of a variation of the driving torque value applied to the motor to compensate for a deviation of the first piece of data (d1) detected from a first pre-set driving torque reference value (d1ref ); calculating (103) a second numeric indicator (QI) representative of tension values applied to the thread supplied to the textile machine (10), each variation of the second numeric indicator (QI) being representative of a deviation of the second piece of data (d2) detected from a second pre-set reference value (d2ref) of the tension of the thread supplied to the textile machine (10); - detecting (104), based on an analysis of said first (TI and second (QI) numeric indicator, malfunctions in the unwinding of the thread (F) from the reel (11) and in the supply of the thread to the textile machine (10); - signaling (105) the occurrence of said malfunctions.
B65H 63/06 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to presence of irregularities in running material, e.g. for severing the material at irregularities
METHOD FOR DETECTING AND REMOTELY MANAGING SENSORS AND/OR DEVICES FOR FEEDING TEXTILE AND/OR METALLIC YARNS INSTALLED ON ONE OR MORE TEXTILE MACHINES, AND SYSTEM THEREOF
The invention relates to a method and system for detecting and remotely managing sensors and/or devices for feeding textile and/or metallic yarns (10) installed on one or more textile machines (100, 100a, 100b). Each textile machine comprises: - an electronic control unit (30, 30a, 30b) electrically connected to the sensors and/or feeding devices for receiving identifiers (Si1, Si2, Si3), each associated with a sensor and/or feeding device, and data and operating parameters (Di1, Di2, Di3) representative of a current or real operating state of the installed sensors and/or feeding devices; - first communication means (31, 31a, 31b) operatively associated with the electronic control unit. The method comprises the steps of: - enabling a wireless communication between the electronic control unit of the one or more textile machines and a portable electronic device (50) provided with second wireless communication means (51) and with display interface means (52); - transmitting, by the electronic control unit, the identifiers of the sensors and/or feeding devices installed on the one or more textile machines to the portable electronic device; - processing the identifiers to generate, by the portable electronic device, one or more menus with selectable entries, each associated with one of the one or more textile machines; each of the menus with selectable entries is representative of the number and type of sensors and/or feeding devices installed on the one or more textile machines; - displaying the main menu with selectable entries on the display interface means of the portable electronic device.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
H04W 4/00 - Services specially adapted for wireless communication networksFacilities therefor
28.
STORAGE YARN FEEDER WITH BRAKING ORGAN AND INTERCHANGEABLE ELEMENTS
A storage yarn feeder (1) comprises a body (2) having a portion or drum (3) onto which winds a yarn (4) forming at least one coil, said yarn (4) coming from a reel, being provided with a braking organ (8) cooperating with said drum (3) to brake the yarn (4) leaving said drum (3), said braking organ (8) comprising braking means capable of cooperating with the yarn (4) when it detaches from the drum (3) as it leaves the feeder and heads towards a textile machine. The drum (3) comprises a first (3A) and a second portion (3B), the latter being capable of supporting the yarn (4) and being separable from the first portion (3A) so as to be capable of being replaced, said first portion being connected to the body (2) of the feeder.
METHOD AND SYSTEM FOR MANAGING AND CONTROLLING THE FEEDING OF AT LEAST ONE THREAD TO A TEXTILE MACHINE AS A FUNCTION OF THE OPERATING STEP OF THE MACHINE
Herein described are a method and a system for managing and controlling the feeding of at least one thread to a textile machine (2) as a function of the operating step of the latter in the production of a product or in the processing of such thread, such production or processing providing for a succession of said steps corresponding to the obtainment of various parts of the same product or different treatments of such thread, the latter being fed to said machine by a corresponding feeder device (1) at a constant tension and/or speed and/or controlled by a sensor (100) which monitors the sliding or any of the inherent characteristics thereof such as tension, speed, diameter, quantity and color, said sensor (100) and/or feeder being controlled by setting and control means (3) which set the operation thereof, said setting and control means (3) receiving synchronization signals from the machine (2) and detecting - according to the latter - the aforementioned operating steps and thus the processing progress status of a product or production process, said setting of the operation being programmed as a function of said operating steps. A unique synchronization signal is generated by the textile machine, for each particular operating step of the machine, independently from the length of such step.
The accumulation-type thread feeder (10), for example for textile applications, comprising: a body (12), which bears a rotary drum (16) on which turns of thread coming from a spool are wound; a tension sensor for detecting the value of the tension of the exiting thread and means for detecting the quantity of thread accumulated on the aforesaid drum (16); a light- reflecting element (25) being present on said drum or functionally associated therewith, such element (25) being generated by light generator means (30) borne by a support (27) arranged alongside the rotary drum (16), said support (27) being associated with means (31) adapted to detect the light reflected by said reflecting element (25A), said reflected light varying as a function of the quantity of thread wound on said rotary drum (16), said detection allowing the detection of such thread quantity. The detector means (31) are a light-sensitive member that directly receives the light reflected by said reflecting element (25A) along the entire surface (23) of the drum (18), said member allowing the determination of the density of the thread present on the drum.
A compact device for controlling the supply of a textile or metal thread to a processing machine, such as a textile machine or a spooling or winding machine, includes a body, at least one rotary member with which the thread cooperates, the member associated with a rotation velocity detector for detecting the rotation velocity thereof, the detector connected to a control unit, a tension detector provided for detecting the thread tension connected to such control unit. The rotary member is idle and is placed in rotation by the thread which is moved thereon, in proximity to such member the tension detector being placed.
Also disclosed is a method for controlling the supply of thread actuated by such device.
G01L 5/10 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
B65H 59/06 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating delivery of material from supply package by devices acting on material leaving the package
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B65H 51/30 - Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
B65H 63/028 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to reduction in tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
B65H 51/22 - Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
32.
Yarn recovery device and yarn feed system comprising said device
A yarn recovery device includes a support structure that can be associated upstream or downstream with a yarn feed device, a yarn entry eye and exit eye rigidly connected to the support structure; a drum rotatably associated with the support structure having a seat to accommodate the yarn operationally located between the entry eye and the exit eye; the drum being switchable between a deactivated configuration, in which the seat is substantially aligned with the entry eye and the exit eye and the path of the yarn is not diverted by the drum, and an activated configuration, in which the seat is misaligned in relation to the entry eye and the exit eye and the path of the yarn is diverted by the drum that winds the yarn round itself.
A system for feeding a metal wire to a machine by a wire feeder, the wire being fed at a constant and desired tension detected by a tension sensor, the feeder having at least one rotary member driven by an actuator thereof onto which the metal wire is wound for a rotation or fraction of rotation and suitable to feed the wire to the machine at the pre-set tension under the action of a control unit. A detector to detect the quantity of wire fed is provided and connected to the control unit to provide the control unit with the quantity data thereof, the control unit intervening on the rotary member to keep the quantity of wire fed at least within a reference value.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
A modular element for a creel includes a structure having at least one support for supporting a package or bobbin of yarn; the structure being modularly couplable with other similar structures to allow the feeding of multiple yarns to a textile machine; a feeding device for the yarn to draw the yarn from the bobbin and supply it to the textile machine; the support is movable parallel to a movement direction, defined from a rear face to a front face of the structure, between a position inside the structure and a position outside the structure.
D02H 1/00 - Creels, i.e. apparatus for supplying a multiplicity of individual threads
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B65H 67/02 - Arrangements for removing spent cores or receptacles and replacing by supply packages at paying-out stations
B65H 63/08 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
B65H 49/12 - Package-supporting devices for one operative package and one or more reserve packages the reserve packages being mounted to permit manual or automatic transfer to operating position
35.
Method and system for feeding a thread to a textile machine, at a constant tension and preset draw, as a function of the operating step of the latter
A method for feeding a thread at a preset drawing to a textile machine includes a first feeder which sends the thread to the textile machine and a second feeder arranged spaced from the first feeder and which sends such thread to the latter, each feeder having a rotary member on which there is partly wound the thread before the feeding thereof and a speed sensor adapted to detect the rotational speed of such rotary member and a tension sensor to detect the tension of the thread exiting from each feeder. Controlling drawing the thread sent to the textile machine by controlling and adjusting the ratio between the rotational speed of the rotary member of the first feeder and the rotational speed of the rotary member of the second feeder.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B65H 51/22 - Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
B65H 51/30 - Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
D02J 1/22 - Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
B65H 51/02 - Rotary devices, e.g. with helical forwarding surfaces
36.
Method and device for winding a synthetic yarn coming from an extruder
A method for winding a synthetic yarn coming from an extruder including the steps of connecting at least one yarn exiting from an extruder with at least one corresponding bobbin rotatable around a longitudinal axis thereof, on which the yarn is wound; rotating the bobbin by imparting a specific speed and/or torque to the bobbin; measuring a value of the tension acting on the yarn upstream of the bobbin; adjusting the speed and/or the torque to maintain the measured tension value substantially equal to a constant reference value of the tension.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
37.
COMPACT DEVICE FOR CONTROLLING THE SUPPLY OF THREAD TO A PROCESSING MACHINE
A compact device for controlling the supply of a textile or metal thread to a processing machine, such as a textile machine or a spooling or winding machine, comprises a body (1), at least one rotary member (5, 6) with which the thread cooperates, said member being associated with detector means (12) for detecting the rotation velocity thereof, these detector means (12) being connected to a control unit (13), means (15) being provided for detecting the thread tension that are connected to such unit (13). The rotary member is idle and is placed in rotation by the thread which is moved thereon, in proximity to such member (5, 6) the tension detector means (15) being placed. Also claimed is a method for controlling the supply of thread actuated by such device.
B65H 61/00 - Applications of devices for metering predetermined lengths of running material
G01L 5/10 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
38.
Simplified system and method for managing the feed of a plurality of yarns at constant tension and/or velocity to a textile machine
A system and method for managing the feed of a plurality of yarns at constant tension and/or velocity to a textile machine of circular, loom or yarn preparation type, the yarns being fed to the machine by a corresponding plurality of feed devices. Setting controller is provided, connected to the plurality of devices and arranged to set their operation, the setting controller receiving synchronization signals from the machine and measuring on the basis of these signals every portion of an article production cycle, the cycle being divided into different stages, the setting controller acting on each individual feed device on the basis of the stages such that each feed device feeds the respective yarn with predefined tension and/or velocity individual to each of the stages.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
D04B 15/99 - Driving-gear not otherwise provided for electrically controlled
D04B 35/12 - Indicating, warning, or safety devices, e.g. stop motions responsive to thread consumption
A metal wire feeder device including a body presenting a wire braking member, one or more pulleys driven by respective motors about which the wire is wound, the wire before reaching a processing machine passing through a compensator member and a tension sensor, an electronic control unit able to continuously measure the tension value and make it uniform at a predetermined value by acting on a first regulator loop operating on the motors and a second regulator loop operating on the compensator member. The electronic control unit operates automatically in making the tension uniform at the predetermined value, on the basis of the fed wire quantity or of the wire feed velocity.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B21C 47/34 - Feeding or guiding devices not specially adapted to a particular type of apparatus
B21C 47/00 - Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
A yarn recovery device comprises a support structure (2) that can be associated upstream with a yarn feed device (20), a yarn entry eye (3) and exit eye (4) rigidly connected to said support structure (2); a drum (5) rotatably associated with the support structure (2) having a seat (9) to accommodate the yarn operationally located between said entry eye (3) and said exit eye (4); said drum (5) being switchable between a deactivated configuration, in which said seat (9) is substantially aligned with said entry eye (3) and said exit eye (4) and the path of the yarn is not diverted by the drum, and an activated configuration, in which the seat is misaligned in relation to said entry eye (3) and said exit eye (4) and the path of the yarn is diverted by the drum that winds the yarn round itself.
A system for supplying metal wire to a machine by a wire supply device. The wire having a desired tension detected by a tension sensor. The supply device has at least one rotary member driven by an actuator thereof on which the metal wire is wound for a fraction of rotation or several rotations and adapted to supply the wire to the machine with predefined tension under the action of a control unit. The system has a detector, for detecting at least one wire physical characteristic, downstream of the supply device and connected to the control unit to provide to the latter the data regarding each detected physical characteristic. The control unit intervening on the rotary member for adjusting the wire tension for maintaining, at least approximately around a reference value, the characteristic of the wire controlled. The latter is at least one dimensional and/or electrical characteristic.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
Yarn feeder including a body carrying a drum on which turns of yarn from a spool are wound; a tension sensor for measuring exiting yarn tension value, a braking member including a first permanent magnet and a fixed second magnet, regulator for varying action the second magnet exerts on the first permanent magnet, and a control unit to control the regulator. The first magnet is annular and movable parallel to the axis of the drum and along it between a first position where the first permanent magnet enables pressing the yarn against a counteracting element fixed to the drum and a second position where this effect does not occur. The control unit receives tension values measured by the tension sensor, comparing them with a predetermined value and intervening in real time on the regulator to adjust tension value to predetermined value when these two values do not coincide.
A method for supplying a thread to a textile machine without creating torsions thereof includes picking up the thread from a reel, winding it on a rotary drum driven by an electric motor thereof and supplying such thread to the textile machine, preferably at constant tension and/or quantity. The method provides for measuring the amount of thread leaving the rotary drum and the amount of thread wound thereon and intervening on the rotation of such drum so the amount of thread leaving the drum is equivalent to the amount loaded thereon to avoid the creation of torsion on the thread.
A device for implementing such method is also disclosed.
A device for feeding yarn to a textile machine, including a main body defining an entry portion and an exit portion for yarn; a rotatable drum for winding the yarn originating from the entry portion and a motor connected to the drum for rotating the drum; a control member active at least on the motor to regulate its torque and velocity; exit portion being selectively switchable between a first configuration in which it defines a free exit section for the yarn, through which the exiting yarn defines a closed path about a rotation axis of the drum, and a second configuration in which it defines a limited exit section, through which the exiting yarn defines an open path.
System for feeding a metal wire (F) to a machine (100) by means of a wire feeder (1), the wire being fe at a constant and desired tension detected by a tensio sensor (25), the feeder (1) having at least one rotar member (14, 15) driven by an actuator (16, 17) thereo onto which the metal wire is wound for a rotation o fraction of rotation and suitable to feed the wire to the machine at the pre-set tension under the action of a control unit (18). Detector means of the quantity of wire fed are provided and connected to said control unit (18) so as to provide the latter with the quantity data thereof, said control unit (18) intervening on said rotary member (14, 15) so as to keep the quantity of wire fed at least within a reference value.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
A modular element for a creel comprises a structure (2) having at least one support (6) for supporting a package or bobbin of yarn (B); said structure (2) being modularly couplable with other similar structures (2) in order to allow the feeding of multiple yarns to a textile machine; a feeding device (18) for the yarn in order to draw the yarn from said bobbin and supply it to said textile machine; said support (6) is movable parallel to a movement direction (M), defined from a rear face (2b) to a front face (2a) of the structure (2), between a position inside the structure (2) and a position outside the structure (2).
B65H 49/12 - Package-supporting devices for one operative package and one or more reserve packages the reserve packages being mounted to permit manual or automatic transfer to operating position
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B65H 63/08 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
B65H 67/02 - Arrangements for removing spent cores or receptacles and replacing by supply packages at paying-out stations
47.
METHOD AND SYSTEM FOR FEEDING A THREAD TO A TEXTILE MACHINE, AT A CONSTANT TENSION AND PRESET DRAW, AS A FUNCTION OF THE OPERATING STEP OF THE LATTER
A method and system for feeding a thread (F) at a preset drawing to a textile machine (T) comprising a first feeder (5) which sends the thread to the textile machine (T) and a second feeder (6) arranged spaced from the first feeder and which sends such thread to the latter, each feeder (4, 5) having a rotary member (15) on which there is partly wound the thread (F) before the feeding thereof and speed sensor means adapted to detect the rotational speed of such rotary member and tension sensor means adapted to detect the tension of the thread (F) exiting from each feeder (4,5). There is provided for controlling the drawing of the thread sent to the textile machine (T) by controlling and adjusting the ratio between the rotational speed (V1) of the rotary member of the first feeder (5) and the rotational speed (V2) of the rotary member of the second feeder (4).
B65H 51/22 - Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
B65H 51/30 - Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
D02J 1/22 - Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
A method for feeding a yarn with constant tension and constant velocity or quantity to a textile machine the processing point of which is distant from a spool from which the yarn unwinds. A first feed control and regulator loop provided presenting first tension measurer and regulator for the yarn. Velocity measurer forming part of a second control loop is provided in proximity to the point or zone to measure this velocity. The yarn feed tension is regulated on the basis of the measured velocity datum to achieve a desired prefixed velocity value at the processing zone or point.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B65H 59/06 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating delivery of material from supply package by devices acting on material leaving the package
A method for winding a synthetic yarn coming from an extruder comprising the steps of connecting at least one yarn (F) exiting from an extruder (E) with at least one corresponding bobbin (2) rotatable around a longitudinal axis (A) thereof, on which said yarn (F) is wound; rotating said bobbin (2) by imparting a specific speed and/or torque to said bobbin (2); measuring a value of the tension acting on the yarn (F) upstream of said bobbin (2); adjusting said speed and/or said torque in order to maintain said measured tension value substantially equal to a constant reference value of said tension.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
A device for feeding warp yarns to a loom, comprising a support member (2); a cylinder (3) associated with said support member (2) and rotatable about its rotation axis (R), and on which a plurality of warp yarns can be wound; at least one motor (4) associated with said cylinder (3) to subject it to rotation; at least one tension sensor (5) active on at least one yarn to generate a tension signal (ST) representative of the value of the tension acting on said yarn; a control unit (6) connected to said tension sensor (5) to receive said tension signal (ST) and to generate and send to said motor (4) a command signal (SC) representative of the velocity of the motor (4), to maintain the value of said tension constant.
A system and method for managing the feed of a plurality of yarns at constant tension and/or velocity to a textile machine (2) of circular, loom or yarn preparation type, the yarns being fed to said machine by a corresponding plurality of feed devices (1). Setting means (3) are provided, connected to said plurality of devices (1) and arranged to set their operation, said control means (3) receiving synchronization signals from the machine (2) and measuring on the basis of these latter every portion of an article production cycle, said cycle being divided into different stages, the control means (3) acting on each individual feed device (1) on the basis of said stages such that each feed device (1) feeds the respective yarn with predefined tension and/or velocity individual to each of said stages.
A device to enable yarn to be fed for textile applications and the relative turns to be separated. The device includes a wheel/drum directly or indirectly motorized for rotation about its axis, the wheel/drum presenting in its lateral surface a series of slits to receive relative blades the projecting profile of which enables the yarn turns wound on the wheel/drum to advance. The blades form an assembly which rotates together with the wheel/drum but about an axis having an inclination and/or an eccentricity relative to the axis of the wheel/drum, such that the profile projection of the blades from the relative slits varies gradually along the perimeter of the wheel/drum, from a minimum to a maximum, to then return to a minimum, but remains constant with time. The blades have a length to be able to receive all the yarn turns which concern the device.
A system for supplying a metal wire (F) to a machine (100) by means of a wire supply device (1), the wire being supplied with a desired tension detected by a tension sensor (25), the supply device (1) having at least one rotary member (14, 15) driven by an actuator thereof (16, 17) on which the metal wire is wound for a fraction of rotation or several rotations and adapted to supply the wire to the machine with the predefined tension under the action of a control unit (18), there being provided means (50, 60) for detecting at least one physical characteristic of the wire (F) arranged downstream of the supply device (1) and connected to said control unit (18) so as to provide to the latter the data regarding each detected physical characteristic, said control unit (18) intervening on said rotary member (14, 15) with the aim of adjusting the tension of the wire (F) for maintaining, at least approximately around a reference value, the characteristic of the wire (F) controlled. The latter is at least one dimensional and/or electrical characteristic.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
A method for supplying a thread (F) to a textile machine (100) without creating torsions thereof comprises picking up the thread (F) from a reel, winding it on a rotary drum (5) driven by an electric motor (6) thereof and supplying such thread (F) to the textile machine, preferably at constant tension and/or quantity. There is provided for measuring the amount of thread (F) leaving the rotary drum (5) and the amount of thread wound thereon and intervene on the rotation of such drum so that the amount of thread leaving the drum is equivalent to the one that is loaded thereon so as to avoid the creation of torsion on the thread. The device for implementing such method is also claimed herein.
A device for feeding yarn to a textile machine, comprising a main body (2) defining an entry portion (2a) and an exit portion (2b) for yarn (F); a rotatable drum (4) for winding said yarn (F) originating from said entry portion (2a) and a motor (5) connected to said drum (4) for rotating it; a control member active at least on said motor (5) to regulate its torque and velocity; said exit portion (2b) being selectively switchable between a first configuration in which it defines a free exit section (12) for the yarn (F), through which the exiting yarn (F) defines a closed path about a rotation axis (R) of the drum (4), and a second configuration in which it defines a limited exit section (12), through which the exiting yarn (F) defines an open path.
A device for feeding yarn to a textile machine, comprising a main body (2); a rotatable drum (5) having a lateral surface (5s) to rest against a yarn bobbin (B); a motor (6) connected to said drum (5) and fixed to said main body (2); and a support structure (8) for said drum (5) rigidly fixed to said motor (6) and positioned in the interior of said drum (5).
B65H 49/34 - Arrangements for effecting positive rotation of packages
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
D04B 15/50 - Thread-feeding devices for elastic threads
The yarn (18) feeder (10; 10A) for textile applications, of storage type, comprises: a body (12) carrying a drum (16) on which turns (20) of yarn (18) originating from a spool are wound; a braking member (22) of the type using magnets (30, 36, 38); a tension sensor (24) for measuring the tension value of the exiting yarn (18), the braking member (22) comprising a first permanent magnet (30) and a fixed second magnet, regulator means (38; 39) for varying the action exerted by the second magnet (36; 38) on the first permanent magnet (30), and a control unit (26) which controls the regulator means. The first magnet is annular and movable parallel to the axis of the drum (16) and along it between a first position (30A) in which the first permanent magnet (30) enables the yarn (18) to be pressed against a counteracting element (32) fixed to the drum and a second position (30B) in which this effect does not occur, the control unit receiving the tension values measured by the tension sensor (24), comparing them with a predetermined value and intervening in real time on said regulator means (38; 39) to adjust the tension value to the predetermined value when these two values do not coincide.
A storage feed device for a yarn which unwinds from a corresponding bobbin and is fed to a textile machine. The device includes a rotary or fixed drum and an optical sensor member arranged to sense the movement of the yarn towards the textile machine. The optical sensor includes a plurality of emitters and receivers between which a light beam is generated and is interrupted by the yarn during its movement. The optical sensor includes a first fixed part and a second fixed part which includes the emitter and receiver elements, the first part being coaxial with the rotary member, the second being annular and surrounding the first part, the yarn moving between the parts.
A metal wire feeder device (1) comprising a body (2) presenting a wire braking member (12), one or more pulleys (14, 15) driven by respective motors (16, 17) about which the wire is wound, the wire before reaching a processing machine passing through a compensator member (20) and a tension sensor (25), an electronic control unit (18) being present able to continuously measure said tension value and make it uniform at a predetermined value by acting on a first regulator loop operating on the motors (16, 17) and a second regulator loop operating on the compensator member (20). Said electronic control unit (18) operates automatically in making said tension uniform at the predetermined value, on the basis of the fed wire quantity or of the wire feed velocity.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
A method for feeding a yarn with constant tension and constant velocity or quantity to a textile machine (T) the processing point of which is distant from a spool (2) from which the yarn (F) unwinds, a first feed control and regulator loop being provided presenting first tension measurement means and regulator means for said yarn (F). Velocity measurement means forming part of a second control loop are provided in proximity to said point or zone to measure this velocity, the yarn feed tension being regulated on the basis of the measured velocity datum such as to achieve a desired prefixed velocity value at said processing zone or point.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
61.
Method and device for feeding a yarn or thread to a processing machine with constant tension and velocity
A method for feeding a yarn or thread to a processing machine, such as a textile machine, the method includes unwinding the yarn from a bobbin, bringing it into cooperation with a rotary member and then directing it to a sensor member arranged to verify its feed tension to the processing machine, with monitoring of the yarn feed velocity. The measured tension and measured velocity data being fed to a control unit which controls the yarn feed to the machine. The tension is continuously controlled by the unit to maintain it constant then, if this tension condition is verified, the velocity is controlled to render it constant, while at the same time the tension value is continuously monitored to verify whether it remains constant. This constant tension and constant velocity control of the yarn feed to the processing machine being implemented without synchronization with the machine.
B65H 51/30 - Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
D04B 15/44 - Tensioning devices for individual threads
A device for sensing the change of feed bobbin for a yarn fed to a textile machine and originating from a first bobbin (B1) or a second bobbin (B2) connected together in head-tail manner comprises at least one first sensor (8) and one second sensor (9) at a passage section (7) of a support body (2), a control unit (10) associated with said first sensor (8) and second sensor (9), said first sensor (8) and said second sensor (9) generating first and second presence signals when the yarn unwound from the first bobbin (B1) or from the second bobbin (B2) passes in front of said first sensor (8) or second sensor (9), said control unit (10) receiving as input said first and/or second presence signal to generate at least one output signal representative of the first bobbin (B1) or of the second bobbin (B2) on the basis of said first or second presence signal.
G01V 8/20 - Detecting, e.g. by using light barriers using multiple transmitters or receivers
B65H 63/08 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
63.
Method and device for automatically measuring the yarn length fed to a rectilinear machine
A method and device for automatically measuring the yarn length absorbed by a rectilinear machine adapted to produce an article and including a carriage movable to-and-fro over a needle bed between two ends of a working path, needles moving towards the carriage to cooperate with the yarn (F) and form an article, the yarn unwinding from a feeder with elements for measuring the yarn quantity fed at constant tension towards the needle bed. The feeder measures and constantly monitors the yarn feed velocity, this monitoring enables the fed and knitted yarn quantity to be obtained in real time and each measurement to be associated with the respective carriage travel stroke, this information enabling precise regulation of the knitting cams.
A modular element of creel including a structure having at least one support suitable to support a reel or yarn spool; the structure is in the form of a solid polygon and includes a feeder device suitable to allow the feeding of the thread developed by such spool with at least one characteristic, selected from the characteristics of tension and speed, maintained constant and equal to a preset fixed value or function of the operational phase of the machine. The structure is able to be modularly coupled to other similar structures to allow the feeding of more yarn to a textile machine. Every yarn fed by every modular element having its own selected characteristic defined by the feeder device associated with such modular element.
B65H 63/08 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
65.
A DEVICE FOR FEEDING A YARN TO A TEXTILE MACHINE HAVING A YARN-CUTTING DEVICE
A device (1) for feeding a yarn (F) to a textile machine (T) comprises a housing (1A) with which a rotary member (2) is associated to cooperate with the yarn (F) unwinding from a package and directed, on leaving the device (1), to said machine (T) where it is processed, correct feed of the yarn (F) being monitored by feed control means (5) associated with said housing (1A) in accordance with at least one measured parameter related to the rotary member (2) or to an intrinsic characteristic of the yarn (F) such as its tension or its feed velocity, a yarn cutting member (13) being provided. This is connected to and controlled by said control means (5) on the basis of the measured parameter of the yarn (F), said cutting member (13) being activated by said control means (5) to cut the yarn (F) whenever the parameter monitored by said means has a value exceeding a predetermined required value.
B65H 54/71 - Arrangements for severing filamentary materials
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B65H 63/04 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to excessive tension or irregular operation of apparatus
A device (1) for cutting a textile yarn (F) during its feed to an operator element such as a textile machine for its processing or a member for feeding it to such a machine, said device (1) comprising a blade member (21) inserted into a housing (2) presenting at least one aperture (10) for passage of said yarn (F), said blade member (21) being carried by a movable support element (20) subjected to actuator means for its movement, said movable support element (20) being able to assume two working positions, a first position in which the blade member (21) is spaced from the yarn (F) and a second position in which said member cooperates with the yarn (F) and cuts it. The actuator means comprise bistable electromagnetic means (12), a spring (25) mounted about the movable support member (20) urging the blade member (21) into the cutting position.
The device (10) enables yarn (15) to be fed for textile applications and the relative turns to be separated, it comprising a wheel/drum (12) directly or indirectly motorized for rotation about its axis (16), the wheel/drum (12) presenting in its lateral surface a series of slits (20) to receive relative blades (22) the projecting profile of which enables the yarn turns (15) wound on the wheel/drum (12) to advance. The blades (22) form an assembly which rotates together with the wheel/drum (12) but about an axis (26) having an inclination (a) and/or an eccentricity (e) relative to the axis (16) of the wheel/drum (12), such that the profile projection of the blades (22) from the relative slits (20) varies gradually along the perimeter of the wheel/drum (12), from a minimum to a maximum, to then return to a minimum, but remains constant with time, the blades (22) having a length such as to be able to receive all the yarn turns (15) which concern the device (10).
A method for feeding a yarn or thread to a processing machine, such as a textile machine, said method consisting of unwinding the yarn (F) from a bobbin (3), bringing it into cooperation with a rotary member (2) and then directing it to a sensor member arranged to verify its feed tension to the processing machine (9), with monitoring of the yarn feed velocity, the measured tension and measured velocity data being fed to a control unit (10) which controls the yarn feed to the machine; the tension is continuously controlled by said unit (10) in order to maintain it constant then, if this tension condition is verified, the velocity is controlled in order to render it constant, while at the same time the tension value is continuously monitored to verify whether it remains constant, this constant tension and constant velocity control of the yarn feed to the processing machine (9) being implemented without any synchronization with said machine.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
D04B 15/50 - Thread-feeding devices for elastic threads
A modular element of creel (1) including a structure (2) having at least one support (22, 23) suitable to support a reel or yarn spool (25, 26); the structure (2) is in the form of a solid polygon and includes a feeder device (30) suitable to allow the feeding of the thread developed by such spool (25, 26) with at least one characteristic, selected between the characteristics of tension and speed, maintained constant and equal to a preset fixed value or function of the operational phase of the machine, said structure (2) being able to be modularly coupled to other similar structures (2) so as to allow the feeding of more yarn to a textile machine, every yarn fed by every modular element (1) having its own selected characteristic defined by the feeder device associated with such modular element (1).
B65H 63/08 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
70.
Device and method for the constant tension feeding of threads or yarns fed in a discontinuous way
Device and method for constant tension feeding, threads or yarns fed to textile or winding machine or metallic wire to similar machine, in discontinuously with phase sequences. The thread motion has at least first and second feeding or absorption states following each other in time. A controller, connected to a tension detector and thread accumulator, intervenes on the accumulator based upon tension value from the detector. A compensator, between the accumulator and tension detector, cooperates with thread to compensate variation of feeding or absorption state of the thread upon passage between each first and second feeding or absorption state. The controller intervenes to modify the accumulator's action on thread and maintain tension value detected by the detector at set value. Interaction between thread and compensator keeping constant tension value during the changing phase of the feeding state. The compensator freely moveable under action of thread relative to a resting position.
A method and device for automatically measuring the yarn length absorbed by a rectilinear machine adapted to produce an article and comprising a carriage (3) movable to-and-fro over a needle bed (1) between two ends of a working path, needles (2) moving towards said carriage (3) to cooperate with the yarn (F) and form an article, said yarn unwinding from a feeder (5) comprising means for measuring the yarn quantity fed at constant tension towards said needle bed; the feeder (5) measures and constantly monitors the yarn feed velocity, this monitoring enabling the fed and knitted yarn quantity to be obtained in real time and each measurement to be associated with the respective carriage travel stroke, this information enabling precise regulation of the knitting cams.
Sensor (1 ) for controlling thread or yarn (F) feed to a textile machine (T) comprising a body or casing (2) suitable for being arranged on a support of the machine (T) or positioned near to it and having detection means (4) suitable for detecting at least one feed characteristic of the yarn (F) to said machine. In the casing or body (2) of the sensor, means (10) are provided for control of said detection and suitable for modifying the modes of said control according to a plurality of control algorithms stored in memory means (11) associated with said casing (2); associated with the latter, selector means (13) are also provided suitable for allowing a user to choose one of said algorithms, thus selecting the desired operating mode of the sensor during its yarn feed control. The method for selecting said desired sensor operating mode is also claimed.
B65H 63/032 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to reduction in tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
A device for the constant tension feeding of threads or yarns fed to a textile machine or a winding machine or similar machine working on a metallic wire, for producing a manufactured product or for processing the thread (8), said feeding taking place in a discontinuous way that is with phase sequences wherein the thread motion takes place with at least a first and at least a second feeding or absorption state by the machine different therebetween, said states following each other in time, as tension detecting means (3), thread accumulating means (4) and control means (40) connected to said detecting means (3) and accumulators (4) are provided and apt to intervene on the latter based upon a tension value obtained from said detecting means; compensating means (11) is provided, arranged between said accumulating means (4) and said tension detecting means (3) apt to cooperate with such thread (8) so as to compensate a variation of the feeding or absorption state of the latter upon the passage between each first and each second feeding or absorption state following the first one, this allowing the control means (40) to intervene onto the accumulating means (4) in order to modify the action thereof onto the thread and to keep constant in time the tension value detected by the detecting means (3) at a set value, said constant tension value being kept also during the changing phase of the feeding state thanks to the interaction between said thread and said compensating means (11), the latter being able to move freely under the action of the thread with respect to a resting position (PB).
A system for controlling the feed of a yarn to a textile machine or a metal wire to a coil winder. The yarn or wire unwinds from its spool and cooperates with a rotary member associated with its own rotation actuator before being directed to the machine. The yarn or wire has a characteristic value of tension and/or speed and/or quantity during this feed, and the actuator has a stator and a rotor acting on an exit drive shaft, which has its own piloting arrangement. The rotary member about which the yarn or wire winds is keyed onto the exit drive shaft. This control system measures the angular position of the drive shaft and compares an instantaneous parameter of that angular position to a prefixed characteristic value of the yarn or wire Command signals are then fed to the actuator's piloting arrangement to conform the instantaneous parameter with this prefixed value.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
B65H 77/00 - Adjusting or controlling tension in material
75.
Method and arrangement for feeding, with yarn of constant absorbed length, a textile machine operating on a plurality of yarns
A method for feeding a plurality of yarns with constant values of fed length to a textile machine, each yarn unwinding from a spool and cooperating with a feed device, arranged to maintain the tension of the yarn at a predefined constant value before being directed to the textile machine. At least one control unit controls the feed to this machine such that an absorbed yarn length value to be maintained for each yarn fed to the textile machine is set or self-learnt. After measuring an actual value of the yarn length absorbed by this machine and comparing it with this predefined value, the control unit acts upon one or more feed devices and modifies the tension value of the corresponding yarn in order to make these absorbed yarn length values equal to the predefined value. A method for implementing this method is also claimed.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
76.
Double control loop method and device for ensuring constant tension yarn feed to a textile machine
A method for feeding a yarn (F) under constant tension to a yarn processing point of a textile machine (T) distant from spool (2) or equivalent support from which the yarn (F) unwinds, the tension of said yarn (F) being controlled in proximity to the spool (2) such that this parameter is monitored and controlled immediately after the yarn (F) has been unwound from the spool (2), the yarn (F) fed to the textile machine (T) cooperating, before reaching said processing point on the machine (T), with a series of thread guide elements (8) which modify the tension of the regulated tension. A second tension control is effected in proximity to the textile machine (T), said control being used for further adjustment of the tension of the yarn (F) in proximity to the spool (2) to hence regulate the tension of the yarn (F) entering the machine (T) to a predetermined constant value.
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
77.
IMPROVED DEVICE FOR FEEDING THREAD OR YARN TO A TEXTILE MACHINE AND A METHOD FOR IMPLEMENTING THE FEED
A device for feeding thread (12) to a textile machine comprises a casing (1) containing an actuator, for example an electric motor (9), rotating an element or accumulator (7) about a longitudinal axis (W) of said casing (1), onto said element or accumulator (7) there being wound the thread (12) withdrawn from a thread spool or bobbin (13); a further rotary element (20) is provided positioned to the front of the element or accumulator (7), downstream thereof along the path of the thread (12) towards the textile machine, to cooperate with the thread (12) before this leaves the feeding device towards the textile machine, said rotary element (20) being associated with its own rotation actuator which is independent of the aforesaid motor (9) and coaxial with it, this latter being hollow for passage of the drive shaft of the actuator, said actuator acting on the thread during its movement towards said textile machine. Said motor (9) and actuator (18) are controlled on the basis of the measured thread tension. A method for implementing this feed is also claimed.
A method for feeding a yarn (F) under constant tension to a yarn processing point of a textile machine (T) distant from spool (2) or equivalent support from which the yarn (F) unwinds, the tension of said yarn (F) being controlled in proximity to the spool (2) such that this parameter is monitored and controlled immediately after the yarn (F) has been unwound from the spool (2), the yarn (F) fed to the textile machine (T) cooperating, before reaching said processing point on the machine (T), with a series of thread guide elements (8) which modify the tension of the regulated tension. A second tension control is effected in proximity to the textile machine (T), said control being used for further adjustment of the tension of the yarn (F) in proximity to the spool (2) to hence regulate the tension of the yarn (F) entering the machine (T) to a predetermined constant value.
B65H 51/30 - Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
B65H 59/38 - Adjusting or controlling tension in filamentary material, e.g. for preventing snarlingApplications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
