A processing line includes a conveyor for conveying product from upstream processing equipment to downstream processing equipment. Data structures stored in a memory of a controller comprise a backlog set point for a product type to be processed. A product sensor for the conveyor is enabled to generate signals representative of a number of the products moving on the conveyor from the upstream processing equipment for delivery to the downstream processing equipment. A conveyor speed sensor for the conveyor is enabled to generate signals representative of a speed of the conveyor. A backlog measurement based upon the product sensor signals and the conveyor speed sensor signals is determined. The backlog measurement is compared to the backlog set point to determine a difference in backlog. The controller is enabled to generate signals for controlling the processing line based upon the difference in backlog and additional information related to the product type.
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]
B65G 43/08 - Control devices operated by article or material being fed, conveyed, or discharged
2.
IMPROVED METHOD AND APPARATUS FOR PRODUCING CORELESS ROLL PRODUCTS
A method is provided for removing mandrels from successive rolls of convolutely wound web material. In one aspect, a roll of web convolutely wound around a mandrel (M1, M2) is moved to a position in which the mandrel is aligned with a clasp (60) with the clasp spaced apart from the mandrel. The clasp (60) is then moved along a path toward the roll. Movement of the clasp toward the roll is stopped only when the clasp is in a position to engage the mandrel. The mandrel is engaged with the clasp. The clasp and the mandrel are moved away from the roll to withdraw the mandrel from the roll. The mandrel is released from the clasp when the mandrel is removed from the roll. The mandrel is removed from the path of the clasp. The steps are repeated for a subsequent roll.
An apparatus (20) forms stacks (42) of interfolded sheets. First and second folding rolls (38) receive the plurality of sheets, move the plurality of sheets through the nip (40), and fold the plurality of sheets into a stack (42) of interfolded sheets downstream of the nip. A packing finger (44) is associated with each folding roll, and the respective packing fingers move between a retracted position and an extended position relative to the corresponding folding roll with alternate movement relative to each other between the retracted position and the extended position to engage the plurality of sheets and form the stack of interfolded sheets. A fluid delivery system (50) delivers fluid (52) to a sheet in the plurality of sheets at or after the folding rolls.
Rolls of an embosser laminator unit may be calibrated with an iterative process of moving axial ends of the roll a set incremental distance until contact between the rolls is made and then making a correction to the distance based upon the end of the roll making contact. The rolls may be move an initial position where the faces of the rolls are devoid of contact with each other. One or both of the rolls may be rotated. The distance between the ends of the rolls may be decreased until the faces of the rolls make contact with each other. The distance between the first ends of the rolls may be increased by an incremental amount, and a determination of contact between the faces of the rolls may be made by alternate movement of the rolls by the incremental amount and position prior to contact.
A converting line (10) has a unwind machine with a load station assembly (22) and a pivot arm/vertical movement assembly (30). The load station assembly (22) rotatably supports a roll as the web is unwound during a first portion of an unwind cycle. The pivot arm/ vertical movement assembly (30) rotatably supports the roll during movement between lowered and raised positions during a second portion of the unwind cycle. A lower brake assembly (70) controls rotation of the roll in the load station assembly (22), and an upper brake assembly (90) controls rotation of the roll with the roll in the pivot arm/vertical movement assembly (30). With the roll rotatably supported in the load station assembly (22), the converting line control generates signals for the lower brake assembly to control an unwind rotation rate of the roll. With the roll rotatably supported by the pivot arm/vertical movement assembly (30), the control generates signals for the upper brake assembly to control the unwind rotation rate.
B65H 23/00 - Registering, tensioning, smoothing, or guiding webs
B65H 23/04 - Registering, tensioning, smoothing, or guiding webs longitudinally
B65H 23/08 - Registering, tensioning, smoothing, or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on web roll being unwound
B65H 23/182 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
B65H 19/12 - Lifting, transporting, or inserting the web rollRemoving empty core
6.
ELECTRONIC NIP ADJUSTMENT AND PRESSURE MEASUREMENT ON PULL STATION
A pull station (16) has top and bottom continuous loops with the top continuous loop (22) disposed on a frame (50) and movable relative to the bottom continuous loop (24) with a frame actuator (54) connected with the frame. The frame actuator has a sensor (60) for sensing position. A stop (70), adjustable with a stop actuator (74) and having a load sensor (80), is operatively engageable with the frame and prevents movement of the top continuous loop toward the bottom continuous loop. A control (90) determines a distance between the top and bottom continuous loops based upon the actuator position sensor; determines a force imparted to webs (W) based on the stop load sensor, the weight of the frame and the top continuous loop, and a force imparted to the top continuous loop by the frame actuator as the webs are conveyed in the pull station; and controls the pull station based upon the distance and/or force measurements.
A method for unwinding includes loading a first reel of web material into a first unwind position where the web is unwound. A splicing unit is then moved in the machine direction toward the first unwind position until there is sufficient space to allow a further reel to be loaded into a second unwind position where the web from the second reel is unwound once loaded. Then, the web from the first reel is spliced to the second reel, and the web of the first reel is thereafter cut. The process continues in the opposite direction after removing the first reel from the first unwind position. The web of the second reel is unwound in the second position, the splicing unit is moved toward the second unwind position until there is sufficient space to allow a further reel to be loaded into the first unwind position.
A method includes a bag forming process with a bag wicketing machine having a sideweld seal head that receives plies of web material, conveys the plies through the sideweld seal head, seals the plies together, cuts the plies to form a bag blank, and moves the bag blank onto an exit conveyor. Pressurized air from nozzles of a pneumatic blow down bar is directed at the bag blank. With an energized laser operatively mounted on the pneumatic blow down bar, the position of the pneumatic blow down bar relative to the bag blank and the exit of the sideweld seal head is adjusted so that a beam emanating from the laser is positioned against the bag blank at a desired location where pressurized air from the nozzles of the pneumatic blow down bar is directed against the bag blank and forces the bag blank into engagement with the conveyor.
B26D 7/32 - Means for performing other operations combined with cutting for conveying or stacking cut product
B65H 29/24 - Delivering or advancing articles from machinesAdvancing articles to or into piles by air-blast or suction apparatus
B65H 29/32 - Delivering or advancing articles from machinesAdvancing articles to or into piles by dropping from pneumatic, e.g. suction, carriers
B65H 35/04 - Delivering articles from cutting or line-perforating machinesArticle or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
B65H 20/14 - Advancing webs by direct action on web of moving fluid
B65H 23/24 - Registering, tensioning, smoothing, or guiding webs longitudinally by fluid action, e.g. to retard the running web
B65H 35/00 - Delivering articles from cutting or line-perforating machinesArticle or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
9.
EMBOSSER-LAMINATOR WITH ELECTROSTATIC ADHESIVE APPLICATION
A method for producing a laminated embossed web includes the steps of: (a) providing a first web and at least a further web, (b) embossing the first web with a first pattern of embossments, each embossment comprising a top and a side, (c) providing an adhesive with an electrostatic charge, (d) directing the adhesive to the tops of the embossments, and (e) combining the webs.
A tissue log cutting saw has an arm movable orbitally within an interior of saw house. A spindle and housing is mounted to the arm. A tool holder with a blade is arrangeable at a first end of the spindle, and an opposite second end rotationally drives the spindle while providing access to an operator of a clamp in the spindle. The clamp is moveable between a hold position in which the clamp engages the tool holder at the first end, and a release position in which the clamp disengages from the tool holder and allows the tool holder to be removed from the first end. An actuator mounted to a structure separate from the arm has an end effector that cooperates with the operator of the clamp to enable the tool holder to be released from the clamp to facilitate automatic changing of a blade of the saw.
B23Q 3/157 - Arrangements for automatic insertion or removal of tools of rotary tools
B23D 45/12 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes
B23D 47/12 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
B26D 1/16 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
B26D 5/22 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member and work feed mechanically connected
B26D 7/02 - Means for holding or positioning work with clamping means
An accumulator has a control system for controlling motion of a plurality of buckets on a continuous loop and logs traversing on a log transfer device. The log transfer device delivers a log from an entrance of the log transfer device to a bucket infeed on the accumulator. The bucket infeed receives a log from the log transfer device and allows a bucket to receive the log from the log transfer device. A time for the log to move from the entrance of the log transfer device to the bucket infeed is determined. Based on the time for the log to move from the entrance of the log transfer device to the bucket infeed, the control system controls the accumulator drive to move the continuous loop such that a bucket in the plurality of buckets is positioned at the bucket infeed with sufficient time to allow the bucket to receive the log from the log transfer device.
B65H 19/30 - Lifting, transporting, or removing the web rollInserting core
B65G 1/12 - Storage devices mechanical with article supports or holders movable in a closed circuit to facilitate insertion or removal of articles
B65G 47/51 - Devices for discharging articles or materials from conveyors with distribution, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
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]
A converting line for coreless roll products includes a rewinding machine and a controller. A log of convolutely wound web material is wound in the rewinding machine during a wind cycle. A diameter of the log, a caliper of the web material, and an amount of tension of the web is determined at a plurality of time points during a time period of the winding cycle. The controller is enabled to generate a signal to change an operating condition of the converting line based upon at least one of a diameter determination at a time point during the wind cycle, a caliper determination at a time point during the wind cycle, a wound web amount determination at a time point during the wind cycle, and a tension determination at a time point during the wind cycle.
A processing line includes a conveyor for conveying product from upstream processing equipment to downstream processing equipment. Data structures stored in a memory of a controller comprise a backlog set point for product to be processe. A product sensor for the conveyor is enabled to generate signals representative of a number of the products moving on the conveyor from the upstream processing equipment past the sensor to the downstream processing equipment. A conveyor speed sensor for the conveyor is enabled to generate signals representative of a speed of the conveyor. A backlog measurement for the conveyor based upon the product sensor signals and the conveyor speed sensor signals is determined. The backlog measurement is compared to the backlog set point to determine a difference in backlog. The controller is enabled to generate signals for controlling the processing line based upon the difference in backlog.
A processing line processes logs of convolutely wound web material and has upstream and downstream sections. A main accumulator has buckets that receive, hold, and release logs. An input feeder receives logs from the upstream section and conveys them to a bucket of main accumulator. A loader has a loader accumulator and loader buckets that receive, hold, and release logs. A transfer conveyor between the main accumulator and the loader receives a log from the main accumulator bucket and conveys the log a loader bucket independently of the input feeder. The loader receives a log from the transfer conveyor. The loader conveys the log in the loader bucket to a discharge of the loader. The loader discharge discharges the log from the loader bucket to the downstream section of the processing line.
An apparatus supports a convolutely wound log of web material during cutting of the convolutely wound log, and includes a bottom support link operatively pivotally coupled to a support frame and a side support link operatively pivotally coupled to the support frame and the bottom support link. A flexible member operatively coupled to a distal end of the side support link extends tangentially from the side support link and curves away from the side support link and the bottom support link so that a portion of the flexible member is spaced away from the side support link and the bottom support link. The spaced away portion of the flexible member together with the side support link and the bottom support link at least in part define a support surface for supporting the convolutely wound log when the log is directed into the apparatus.
B26D 1/16 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
B23D 47/04 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
B26D 5/00 - Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
A blade guard assembly for a circular saw blade of a saw house includes a blade cover with a face panel and an edge portion that extends from the face panel. An actuator is mountable the blade cover and the structure of the saw house. When the blade guard assembly is mounted in saw house, the blade cover is movable with the actuator between a covered position and an exposed position. In the covered position, the face panel and edge portion at least partially surround the saw blade. In the exposed position, the face panel is spaced from the saw blade.
B27G 19/02 - Safety guards or devices specially adapted for wood sawsAuxiliary devices facilitating proper operation of wood saws for circular saws
B23B 45/00 - Hand-held or like portable drilling machines, e.g. drill gunsEquipment therefor
B27B 5/18 - Saw benches with feedable circular saw blade, e.g. arranged on a carriage
B27G 19/00 - Safety guards or devices specially adapted for wood sawsAuxiliary devices facilitating proper operation of wood saws
B27G 19/04 - Safety guards or devices specially adapted for wood sawsAuxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
F16P 3/12 - Safety devices acting in conjunction with the control or operation of a machineControl arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
F16P 3/14 - Safety devices acting in conjunction with the control or operation of a machineControl arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
A converting line includes a rewinding machine for winding web material into a log. For time points during a time period of the log wind cycle, predictive information representative of a log to be wound is generated and stored in a memory of a control of the rewinding machine. An image capture device is enabled to capture a plurality of images of the log being wound in the winding nest at the plurality of corresponding time points during the time period. Log image capture information is generated based upon the plurality of captured images and corresponding time points during the time period. The log image capture information is compared with the generated predictive log image information to determine a difference in log image. Revised predictive log image information is generated based at least in part upon a difference in the log image capture information relative to predictive log image information.
A rotating saw head of a saw assembly has a first saw blade that is driven rotationally and linearly by a first linear-rotary motor, and a second saw blade that is driven rotationally and linearly by a second linear-rotary motor. The first saw blade is configured to be linearly translatable by the first linear-rotary motor at a speed corresponding to a speed of conveyance of a material to be cut with the first rotating saw blade. The second saw blade is configured to be linearly translatable by the second linear-rotary motor at a speed corresponding to a speed of conveyance of a material to be cut with the second rotating saw blade.
B24B 3/46 - Sharpening cutting edges, e.g. of toolsAccessories therefor, e.g. for holding the tools of cutting blades of disc blades
B26D 1/04 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
B26D 1/16 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
19.
PACKAGING METHOD AND LINE FOR IMPROVED FINISHED PRODUCT
An overwrap feed station wraps a product with an overwrap material by drawing the overwrap material around the product to form a tube around the product as the product moves through the feed station. The feed station is configurable in one of first and second configurations based upon a desired location of a longitudinal seal to be formed on the tube around the product. A first former is configured to guide the overwrap material through the entrance of the feed station so that longitudinal edges of the overwrap material overlap on a first side of the tube during wrapping of the product. The second former is configured to guide the overwrap material through the entrance of the feed station so that longitudinal edges of the overwrap material overlap on a second side of the tube during wrapping of the product. The second side is transverse to the first side.
B65B 9/06 - Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
20.
METHOD OF INITIATING A WEB WINDING PROCESS IN A WEB WINDING SYSTEM
A system has first and second winding drums and a core feeder for inserting a core into a winding nest for forming a convoluted roll. The leading edge of the web is engaged with a threading belt and directed around the first winding drum and through the winding nest to a position where the leading edge is beyond where the core feeder inserts the core into the winding nest thus providing an excess portion of the web between the leading edge and the core feeder core insertion position. A thread-up core is inserted into the winding nest and rotated with the winding drums so that the excess portion moves around the thread-up core. The leading edge is separated from the threading belt, the excess portion of the web is wound around the thread-up core, and the web from the supply is wound around the thread-up core.
A method of cleaning a blade of a log saw of a converting line comprises applying a cleaning agent to a saw blade. The saw blade is adapted to cut a log of web material into rolls as the log of web material advances on a conveyor. In an another step of the method the log is advanced on the conveyor for cutting with the saw blade. In another step of the method, the saw blade is cleaned by cutting the log with the saw blade with the cleaning agent applied to the saw blade.
A core end engagement assembly is proivded for a rewinding machine. The core end engagement assembly is configured to engage an end of the core and transmit rotational movement to the core during winding of the web material about the core. The assembly may include a drive housing. A chuck may project from a first end of the drive housing and may be configured to engage the end of the core. A first actuator may reciprocate the drive housing along a central axis of the core between an engagement and disengagement position of the chuck relative to the core. A second actuator may be mounted on the drive housing. The second actuator may be configured and adapted to move the chuck between release and hold positions. A flexible drive shaft operatively connects with and rotationally drives the chuck.
A device and a method is disclosed to maintain plate and anilox mandrel position stability in print decks of a flexographic printing press. In one aspect, the mandrel bearings associated with at least one of the plate roll and the anilox roll are preloaded for the purpose of eliminating backlash and increasing the positional stiffness of the bearings, and thus the mandrel. In another aspect, the roll drive motor control system is enabled to provide a torque additive command the torque profile to maintain rotational consistency and otherwise overcome torque transients experienced by the motor during print bounce. Accordingly, the problem commonly referred to as print bounce and or print banding is alleviated.
A control system for a converting line has a sensor configured to sense a distance between the sensor and a surface of a roll of web material as the roll of web material is unwound from an unwinder and directed to the converting line. The controller is configured to: (i) determine a diameter measurement of the roll as the roll rotates based upon the sensor signals; (ii) store a plurality of data structures in a memory of a controller of a control system wherein the data structures comprise a plurality of data items associated together as the diameter measurements of the roll of the web material; (iii) process by a statistical regression analysis the data structures associated with the diameter; and (iv) generate signals for controlling the converting line based upon the processed diameter measurements.
B65H 23/08 - Registering, tensioning, smoothing, or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on web roll being unwound
B65H 23/18 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
B65H 23/182 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
B65H 23/185 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations motor-controlled
G05B 19/18 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
G05B 19/19 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
25.
SURFACE REWINDER WITH CENTER ASSIST AND BELT AND WINDING DRUM FORMING A WINDING NEST
A rewinding machine winds a web material into a log about a core. The web material to be wound is directed about a rotating winding drum. A continuous loop is spaced from the winding drum and with the winding drum defines a nip through which the core is inserted and through which the web material is directed. A surface of the continuous loop opposite the winding drum across the nip is configured to move in a direction generally opposite of the winding drum for winding the web material about the core. A rider roll defines a winding space with the winding drum and the continuous loop. The rider roll is movable relative to the continuous loop and the winding drum to allow for an increase in a diameter of the log in the winding space during winding of the web material about the core.
A conveyor system for advancing tissue logs has a first log advancement member that conveys a lead tissue log toward a discharge end of a lane via a first drive, and a second log advancement member that conveys a successive tissue log after the lead tissue log toward the discharge end of the lane via a second drive. A controller is coupled to the first and second drives. The controller is adapted and configured to control: the first drive to move the first log advancement member between a start and finish position, the second drive to move the second log advancement member between the start and finish position, and the first drive independently of the second drive. A plurality of like lanes may be provided and the controller may also control the first and second drives of one lane independently of the first and second drives of another lane.
B65B 35/44 - Arranging and feeding articles in groups by endless belts or chains
B65G 19/02 - Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for articles, e.g. for containers
B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
B26D 1/16 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
27.
APPARATUS AND METHOD FOR AUTOMATED BLADE CHANGE FOR TISSUE SAW
A blade storage array is detachably mountable with a tissue log cutting saw. The saw has a cutting arm with a tool holder receptacle adapted and configured to hold a circular saw blade for the saw. The array has a plurality of storage units. Each storage unit is adapted and configured to store a circular saw blade for the saw. Each storage unit has a tool holder receptacle adapted and configured to hold a circular saw blade. Each storage unit is adapted and configured to move perpendicularly to the saw blade center axis.
B23D 45/10 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a plurality of circular saw blades
B23D 45/08 - Sawing machines or sawing devices with circular saw blades or with friction saw discs with a ring blade having inside saw teeth
B23D 59/00 - Accessories specially designed for sawing machines or sawing devices
B23Q 3/155 - Arrangements for automatic insertion or removal of tools
B27B 5/065 - Sawing machines working with circular saw bladesComponents or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage
B27B 5/32 - Devices for securing circular saw blades to the saw spindle
28.
METHOD AND APPARATUS FOR CHANGING ROLLS ON AN EMBOSSER/LAMINATOR MACHINE
An embosser/laminator machine (LEM) has an adhesive unit (2) releasably connectable with a main frame structure (3) of the machine, and a roll extractor (10) configured to move a roll (7) between the main frame structure and an exchange position between the main frame structure and the adhesive unit when the adhesive unit is spaced from the main frame structure during removal and installation of the roll. The sub-frame comprising the adhesive unit (2) may be formed with a bearing cap (9) that cooperates with the main frame structure such that when the adhesive unit is connected with the main frame structure, the roll is operatively secured to the machine between main frame structure and the sub-frame of the adhesive unit for normal operation of the machine. When the sub-frame comprising the adhesive unit is released and spaced from main frame structure, the roll may be removed from and installed into the main frame structure.
The invention relates to a device and method for cleaning the surface of a printing roll, such as an anilox roll. The device includes a laser-equipped assembly adapted to project a laser beam on the surface of the printing roll. The laser-equipped assembly uses a reflector and a lens to guide the laser beam along a predetermined path on the surface of the printing roil. In some embodiments, an autofocus system may be included to move the lens so that the desired focal point for the laser beam on the printing roll surface is achieved.
An embossing assembly for sheet material includes at least two embossing rollers, the ends of which are rotatably mounted in the side panels of an embossing machine. Each of the side panels is divided into a fixed portion and at least one movable portion. The ends of the embossing rollers are mounted in supports which are removably fixed in seats formed in the fixed portions of the side panels or in the movable portions of the side panels of the machine. In this manner, when the movable portions of side panels are moved with respect to the fixed portions of side panels, a space is cleared for removal of at least a portion of the embossing roller supports.
patents
