An electronic device for determining a location of a seal strip device in a strip of a papermaking machine includes a seal strip location identification component associated with the seal strip device, a current monitoring circuit configured to measure a current through the seal strip location identification component that is associated with the seal strip device, and a location circuit configured to transmit information related to the current through the seal strip location identification component, and configured to receive an address related to the location of the seal strip device. Related methods and systems are also described.
An electronic device for determining a location of a seal strip device in a strip of a papermaking machine includes a seal strip location identification component associated with the seal strip device, a current monitoring circuit configured to measure a current through the seal strip location identification component that is associated with the seal strip device, and a location circuit configured to transmit information related to the current through the seal strip location identification component, and configured to receive an address related to the location of the seal strip device. Related methods and systems are also described.
A seal strip for a suction roll includes: an elongate body comprising a polymeric material, the elongate body having a lower surface and a subchannel with an open end that opens at the lower surface, the subchannel extending upwardly from the lower surface, wherein a longitudinal axis of the subchannel extends parallel with a longitudinal axis of the elongate body; a system for monitoring operational parameters, the system including a plurality of sensors and a controller for receiving signals from the sensors, the system residing within the subchannel; and additional polymeric material in the subchannel that embeds the system within the subchannel.
A pressure-sensing belt for a shoe press or the like includes: a substantially cylindrical polymeric belt having a longitudinal axis, a radially inner surface, and a radially outer surface; a plurality of reinforcing cross-machine (CD) fibers extending parallel to the longitudinal axis for the length of the belt between the inner and outer surfaces; a plurality of reinforcing machine direction (MD) fibers extending circumferentially relative to the longitudinal axis between the inner and outer surfaces; and a plurality of piezoelectric fibers extending within the belt, the piezoelectric fibers each having a sensing portion and a signal-carrying portion.
A seal strip and wear monitoring system includes: a seal strip having an upper surface; and a wear monitoring system. The wear monitoring system includes: a sensing portion comprising a plurality of electrical traces, each of the electrical traces including an uppermost portion that is generally parallel with and is positioned at a depth from the upper surface of the seal strip, wherein the depth of each trace uppermost portion differs from the depth of the other electrical traces; and a signal processing portion electrically connected with the electrical traces, the signal processing portion including circuitry configured to detect electrical signals from the traces and to determine when the uppermost portion of a trace has been damaged.
D21F 7/06 - Indicating or regulating the thickness of the layerSignal devices
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
G01B 7/26 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
6.
SEAL STRIP WEAR MONITORING SYSTEMS AND ASSEMBLIES THEREFOR
A seal strip and wear monitoring system includes: a seal strip having an upper surface; and a wear monitoring system. The wear monitoring system includes: a sensing portion comprising a plurality of electrical traces, each of the electrical traces including an uppermost portion that is generally parallel with and is positioned at a depth from the upper surface of the seal strip, wherein the depth of each trace uppermost portion differs from the depth of the other electrical traces; and a signal processing portion electrically connected with the electrical traces, the signal processing portion including circuitry configured to detect electrical signals from the traces and to determine when the uppermost portion of a trace has been damaged.
An assembly includes: a seal strip with an upper wear surface and an opposed lower surface, the seal strip configured to provide a seal for a suction roll, the seal strip comprising a first material having a first thermal conductivity; a seal strip holder, the seal strip residing in the seal strip holder and movable relative thereto; and a temperature monitoring system. The temperature monitoring system comprises: a heat-conducting rod at least partially embedded in the seal strip, the heat-conducting rod comprising a second material, wherein the second material has a second thermal conductivity that is higher than the first thermal conductivity; a temperature sensor connected with the heat-conducting rod for sensing temperature in the heat-conducting rod, and a controller operatively connected with the temperature sensor, the controller configured to receive signals from the temperature sensor and process the signals to indicate a temperature of the upper surface of the seal strip.
An assembly includes: a seal strip with an upper wear surface and an opposed lower surface, the seal strip configured to provide a seal for a suction roll, the seal strip comprising a first material having a first thermal conductivity; a seal strip holder, the seal strip residing in the seal strip holder and movable relative thereto; and a temperature monitoring system. The temperature monitoring system comprises: a heat-conducting rod at least partially embedded in the seal strip, the heat-conducting rod comprising a second material, wherein the second material has a second thermal conductivity that is higher than the first thermal conductivity; a temperature sensor connected with the heat-conducting rod for sensing temperature in the heat-conducting rod, and a controller operatively connected with the temperature sensor, the controller configured to receive signals from the temperature sensor and process the signals to indicate a temperature of the upper surface of the seal strip.
An electronic device for calibrating a nip measuring device associated with nip rollers includes a sensor selection circuit configured to receive signals from a sensor array that includes a plurality of nip sensors that are configured to detect operational parameters of the nip rollers, a plurality of sensor channel lines electrically connected between respective ones of the plurality of nip sensors and the sensor selection circuit, a calibration array including one or more calibration resistors, and a calibration channel line electrically connected between the calibration array and the sensor selection circuit. A signal on a respective one of the plurality of sensor channel lines is configured to be sampled by a respective one of a plurality of gain resistances. A nip sensor resistance of a sensor is determined based on the sampled signal on the sensor channel lines and the gain resistances. Related methods and systems are also described.
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
An electronic device for calibrating a nip measuring device associated with nip rollers includes a sensor selection circuit configured to receive signals from a sensor array that includes a plurality of nip sensors that are configured to detect operational parameters of the nip rollers, a plurality of sensor channel lines electrically connected between respective ones of the plurality of nip sensors and the sensor selection circuit, a calibration array including one or more calibration resistors, and a calibration channel line electrically connected between the calibration array and the sensor selection circuit. A signal on a respective one of the plurality of sensor channel lines is configured to be sampled by a respective one of a plurality of gain resistances. A nip sensor resistance of a sensor is determined based on the sampled signal on the sensor channel lines and the gain resistances. Related methods and systems are also described.
G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
G01R 33/58 - Calibration of imaging systems, e.g. using test probes
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
G01R 35/00 - Testing or calibrating of apparatus covered by the other groups of this subclass
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
11.
SEAL STRIP WEAR AND TEMPERATURE MONITORING SYSTEMS AND ASSEMBLIES THEREFOR
An assembly for a papermaking machine includes: a seal strip with an upper surface configured to provide a seal for a suction roll; a seal strip holder, the seal strip residing in the seal strip holder and movable relative thereto; and a wear monitoring system. The wear monitoring system may include a magnet and magnetic field sensors or an ultrasonic transducer to monitor movement of the seal strip relative to the holder, thereby indicating wear.
G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
G01B 17/04 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
12.
SEAL STRIP WEAR AND TEMPERATURE MONITORING SYSTEMS AND ASSEMBLIES THEREFOR
An assembly for a papermaking machine includes: a seal strip with an upper surface configured to provide a seal for a suction roll; a seal strip holder, the seal strip residing in the seal strip holder and movable relative thereto; and a wear monitoring system. The wear monitoring system may include a magnet and magnetic field sensors or an ultrasonic transducer to monitor movement of the seal strip relative to the holder, thereby indicating wear.
G01B 17/04 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
G01B 17/02 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
An assembly for a papermaking machine includes: a seal strip with an upper surface configured to provide a seal for a suction roll; a seal strip holder, the seal strip residing in the seal strip holder and movable relative thereto; and a wear monitoring system. The wear monitoring system may include a magnet and magnetic field sensors or an ultrasonic transducer to monitor movement of the seal strip relative to the holder, thereby indicating wear.
Features of the described system can provide methods to measure strip temperature, strip wear and a method to purge clogged lubrication shower nozzles with an electronic multi- microprocessor based measurement and control system. Features to gauge the strip movement and also pilot bearing temperature and vibration are also described. In an embodiment, a suction roll is provided, including: a cylindrical shell; a suction box in the lumen of the shell; a suction source operatively connected with the suction box; at least one seal strip attached to the suction box and configured to assist in forming a seal between the suction box and the shell; first, second and third sensors attached to the seal strip and mounted on a printed circuit board; and a controller operatively connected with the sensors. The sensors are configured to convey signals to the controller, the signals being processed to provide data on the seal strip on at least one of temperature, wear, vibration, and pressure.
A suction roll includes: a cylindrical shell having an internal lumen and a plurality of through holes; a suction box positioned in the lumen of the shell; a suction source operatively connected with the suction box; at least one seal strip attached to the suction box and configured to assist in forming a seal between the suction box and the shell; a sensor attached to the seal strip; and a controller operatively connected with the sensor. The sensor is configured to convey signals to the controller, the signals being processed in the controller to provide data on the seal strip on at least one of temperature, wear, vibration, and pressure.
A suction roll includes: a cylindrical shell having an internal lumen and a plurality of through holes; a suction box positioned in the lumen of the shell; a suction source operatively connected with the suction box; at least one seal strip attached to the suction box and configured to assist in forming a seal between the suction box and the shell; a sensor attached to the seal strip; and a controller operatively connected with the sensor. The sensor is configured to convey signals to the controller, the signals being processed in the controller to provide data on the seal strip on at least one of temperature, wear, vibration, and pressure.
F16N 29/00 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditionsUse of devices responsive to conditions in lubricating arrangements or systems
A cylindrical polymeric cover for an industrial roll that improves land distance includes a plurality of through holes and blind drilled holes. The through holes and blind drilled holes are arranged in a pattern in which: (a) through holes are arranged in rows that define an oblique angle relative to a plane perpendicular to a longitudinal axis of the cover; (b) through holes of one row are offset from through holes of the adjacent row, with the offset between rows defining an angle of approximately 20-40 degrees; (c) the blind drilled holes are arranged in rows between rows of through holes; (d) a slight offset between adjacent rows of blind drill holes defining an angle similar to that defined by the through holes; and (e) each of the blind drilled holes is located at the substantial center of a triangle defined by the closest three through holes.
A cylindrical polymeric cover for an industrial roll includes a plurality of through holes and a plurality of blind drilled holes. The through holes and the blind drilled holes are arranged in a pattern in which: (a) the through holes are arranged in rows that define an oblique angle relative to a plane that is perpendicular to a longitudinal axis of the cover; (b) the through holes of one row are offset from the through holes of the adjacent row, with the offset between rows defining an angle of approximately 20-40 degrees; (c) the blind drilled holes are arranged in rows located between the rows of through holes; (d) the blind drilled holes of one row are offset slightly from the blind drilled holes of the adjacent row, with the offset between rows defining an angle similar to that defined by the through holes; and (e) each of the blind drilled holes is located at the substantial center of a triangle defined by the closest three through holes.
A calender roll for a papermaking machine includes: a substantially cylindrical core; and a cover circumferentially surrounding the core. The cover comprises: a base layer circumferentially overlying the core; and a topstock layer comprising polyurethane circumferentially overlying the base layer, the topstock layer being fiber-reinforced, the polyurethane having a glass transition temperature of between about 120 and 150ºC, the topstock layer having a hardness of 70 to 90 ShD.
A calender roll for a papermaking machine includes: a substantially cylindrical core; and a cover circumferentially surrounding the core. The cover comprises: a base layer circumferentially overlying the core; and a topstock layer comprising polyurethane circumferentially overlying the base layer, the topstock layer being fiber-reinforced, the polyurethane having a glass transition temperature of between about 120 and 150ºC, the topstock layer having a hardness of 70 to 90 ShD.
A calender roll for a papermaking machine includes: a substantially cylindrical core; and a cover circumferentially surrounding the core. The cover comprises a base layer circumferentially overlying the core; and a topstock layer comprising polyurethane circumferentially overlying the base layer, the topstock layer being fiber reinforced, the polyurethane having a glass transition temperature of between about 120 and 150° C., the topstock layer having a hardness of 70 to 90 ShD.
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
23.
SUCTION ROLL WITH SENSORS FOR DETECTING OPERATIONAL PARAMETERS
An industrial roll includes: a substantially cylindrical shell having an outer surface and an internal lumen; a polymeric cover circumferentially overlying the shell outer surface, wherein the shell and cover have a plurality of through holes that provide fluid communication between the lumen and the atmosphere; and a sensing system. The sensing system includes: a plurality of sensors embedded in the cover, the sensors configured to sense an operating parameter of the roll and provide signals related to the operating parameter; at least one signal-carrying member connected with at least one of the sensors, wherein the signal-carrying member includes openings that align at least partially with some of the through holes of the shell and cover; and a processor operatively associated with the sensors that processes signals provided by the sensors.
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B30B 3/04 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
G01K 13/08 - Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/04 - 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
24.
SUCTION ROLL WITH SENSORS FOR DETECTING OPERATIONAL PARAMETERS
An industrial roll includes: a substantially cylindrical shell having an outer surface and an internal lumen; a polymeric cover circumferentially overlying the shell outer surface, wherein the shell and cover have a plurality of through holes that provide fluid communication between the lumen and the atmosphere; and a sensing system. The sensing system includes: a plurality of sensors embedded in the cover, the sensors configured to sense an operating parameter of the roll and provide signals related to the operating parameter; at least one signal-carrying member connected with at least one of the sensors, wherein the signal-carrying member includes openings that align at least partially with some of the through holes of the shell and cover; and a processor operatively associated with the sensors that processes signals provided by the sensors.
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B30B 3/04 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
G01K 13/08 - Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/04 - 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
25.
SUCTION ROLL WITH SENSORS FOR DETECTING OPERATIONAL PARAMETERS
An industrial roll includes: a substantially cylindrical shell having an outer surface and an internal lumen; a polymeric cover circumferentially overlying the shell outer surface, wherein the shell and cover have a plurality of through holes that provide fluid communication between the lumen and the atmosphere; and a sensing system. The sensing system includes: a plurality of sensors embedded in the cover, the sensors configured to sense an operating parameter of the roll and provide signals related to the operating parameter; at least one signal-carrying member connected with at least one of the sensors, wherein the signal-carrying member includes openings that align at least partially with some of the through holes of the shell and cover; and a processor operatively associated with the sensors that processes signals provided by the sensors.
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
B30B 3/04 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
An industrial roll includes: a substantially cylindrical shell having an outer surface and an internal lumen; a polymeric cover circumferentially overlying the shell outer surface, wherein the shell and cover have a plurality of through holes that provide fluid communication between the lumen and the atmosphere; and a sensing system. The sensing system includes: a plurality of sensors embedded in the cover, the sensors configured to sense an operating parameter of the roll and provide signals related to the operating parameter; at least one signal-carrying member connected with at least one of the sensors, wherein the signal-carrying member includes openings that align at least partially with some of the through holes of the shell and cover; and a processor operatively associated with the sensors that processes signals provided by the sensors.
G01K 13/08 - Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/04 - 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
An industrial roll includes: a substantially cylindrical metallic core; a base layer that is adhered to and circumferentially overlies the core; and a top stock layer that circumferentially overlies the base layer. The top stock layer includes circumferential grooves, wherein the grooves have a width/height ratio of at least 0.7.
An industrial roll includes: a substantially cylindrical metallic core; a base layer that is adhered to and circumferentially overlies the core; and a top stock layer that circumferentially overlies the base layer. The top stock layer includes circumferential grooves, wherein the grooves have a width/height ratio of at least 0.7.
An industrial roll includes: a substantially cylindrical metallic core; a base layer that is adhered to and circumferentially overlies the core; and a top stock layer that circumferentially overlies the base layer. The top stock layer comprises a material having a Pusey and Jones (P&J) hardness of 35 or higher. The top stock layer includes circumferential grooves, wherein the grooves have a width/height ratio of at least 0.7.
A method of determining the rotative position of an industrial roll includes (a) providing a rotating industrial roll having a longitudinal axis, the industrial roll having mounted on one end thereof an accelerometer, the industrial roll further including a plurality of sensors; (b) determining a pre-trigger angular position of the roll based on a first gravity vector provided by the accelerometer; then (c) determining a trigger angular position of the roll based on a second gravity vector provided by the accelerometer, the magnitude of the second gravity vector differing from the magnitude of the first gravity vector by more than the magnitude of a typical noise signal; and (d) gathering data from the sensors after the roll has passed the trigger angular position; and (e) matching data gathered in step (d) with a respective sensor of the plurality of sensors based on the determination of the trigger angular position.
D21G 9/00 - Other accessories for paper-making machines
G01D 5/02 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means
31.
Industrial roll with triggering system for sensors for operational parameters
A method of determining a rotative position of an industrial roll includes: (a) providing a rotating industrial roll having a longitudinal axis, the industrial roll having mounted on one end thereof an accelerometer, the industrial roll further including a plurality of sensors; (b) determining a pre-trigger angular position of the roll based on a first gravity vector provided by the accelerometer; then (c) determining a trigger angular position of the roll based on a second gravity vector provided by the accelerometer, the magnitude of the second gravity vector differing from the magnitude of the first gravity vector by more than the magnitude of a typical noise signal; and (d) gathering data from the sensors after the roll has passed the trigger angular position; and (e) matching the data gathered in step (d) with a respective sensor of the plurality of sensors based on the determination of the trigger angular position.
B30B 3/04 - Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
D21G 9/00 - Other accessories for paper-making machines
32.
INDUSTRIAL ROLL WITH TRIGGERING SYSTEM FOR SENSORS FOR OPERATIONAL PARAMETERS
A method of determining the rotative position of an industrial roll includes (a) providing a rotating industrial roll having a longitudinal axis, the industrial roll having mounted on one end thereof an accelerometer, the industrial roll further including a plurality of sensors; (b) determining a pre-trigger angular position of the roll based on a first gravity vector provided by the accelerometer; then (c) determining a trigger angular position of the roll based on a second gravity vector provided by the accelerometer, the magnitude of the second gravity vector differing from the magnitude of the first gravity vector by more than the magnitude of a typical noise signal; and (d) gathering data from the sensors after the roll has passed the trigger angular position; and (e) matching data gathered in step (d) with a respective sensor of the plurality of sensors based on the determination of the trigger angular position.
D21G 9/00 - Other accessories for paper-making machines
G01D 5/02 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means
An industrial roll includes: a substantially cylindrical core having an outer surface; a polymeric cover circumferentially overlying the core outer surface; and a sensing system. The sensing system includes: a first signal carrying member serially connecting a first set of sensors; a second signal carrying member serially connecting a second set of sensors; and a signal processing unit operatively associated with the first and second signal carrying members and configured to selectively monitor the signals provided by the first and second set of sensors.
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
The present invention relates generally to an industrial roll, particularly to papermaking roll covers that have different balances of properties, particularly sheet release and water diffusion. The industrial roll comprises: a substantially cylindrical metallic core; a base layer that is adhered to and circumferentially overlies the core; a polymeric topstock layer that circumferentially overlies the base layer. In some embodiments, a hydrophobic or amphiphobic coating circumferentially overlies the topstock layer; wherein the polymeric topstock layer comprises polyurethane and the hydrophobic or amphiphobic coating comprises a hydrophobic or amphiphobic compound and a matrix material comprising polyurethane. In some embodiments, the topstock layer comprises a plurality of recesses having an interior surface coated with a hydrophobic or amphiphobic coating. In some embodiments, a method of constructing the industrial roll includes applying a bi-layer over the base layer, the bi-layer comprising the topstock layer and the hydrophobic or amphiphobic coating.
The present invention relates generally to an industrial roll, comprising: a substantially cylindrical metallic core; a base layer that is adhered to and circumferentially overlies the core; a polymeric topstock layer that circumferentially overlies the base layer; and a hydrophobic and/or amphiphobic coating that circumferentially overlies the topstock layer.
The present invention relates generally to an industrial roll, comprising: a substantially cylindrical metallic core (12); a base layer (18) that is adhered to and circumferentially overlies the core; a polymeric topstock layer (22) that circumferentially overlies the base layer; and a hydrophobic and/or amphiphobic coating (24) that circumferentially overlies the topstock layer.
A method of determining the angular position of a roll includes: (a) detecting signals generated by an accelerometer attached to an end of a rotating roll; (b) determining whether a signal generated in step (a) has reached a pre-trigger threshold, and repeating step (a) if the signal has not reached the pre-trigger threshold; (c) if the signal is determined in step (b) to have reached the pre-trigger threshold, detecting a subsequent signal generated by the accelerometer; (d) determining whether the signal detected in step (c) has reached a trigger threshold, and repeating step (c) if the signal has not reached the trigger threshold; and (e) if the signal has reached the trigger threshold, establishing the angular position of the roll based on the signal that has reached the trigger threshold.
A method of determining the angular position of a roll includes: (a) detecting signals generated by an accelerometer attached to an end of a rotating roll; (b) determining whether a signal generated in step (a) has reached a pre-trigger threshold, and repeating step (a) if the signal has not reached the pre-trigger threshold; (c) if the signal is determined in step (b) to have reached the pre-trigger threshold, detecting a subsequent signal generated by the accelerometer; (d) determining whether the signal detected in step (c) has reached a trigger threshold, and repeating step (c) if the signal has not reached the trigger threshold; and (e) if the signal has reached the trigger threshold, establishing the angular position of the roll based on the signal that has reached the trigger threshold.
A method of determining the angular position of a roll includes: (a) detecting signals generated by an accelerometer attached to an end of a rotating roll; (b) determining whether a signal generated in step (a) has reached a pre-trigger threshold, and repeating step (a) if the signal has not reached the pre-trigger threshold; (c) if the signal is determined in step (b) to have reached the pre-trigger threshold, detecting a subsequent signal generated by the accelerometer; (d) determining whether the signal detected in step (c) has reached a trigger threshold, and repeating step (c) if the signal has not reached the trigger threshold; and (e) if the signal has reached the trigger threshold, establishing the angular position of the roll based on the signal that has reached the trigger threshold.
G01P 15/00 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration
G01B 21/22 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapersMeasuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes
G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
D21G 9/00 - Other accessories for paper-making machines
G01D 5/02 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means
40.
NIP WIDTH SENSING METHOD AND SYSTEM FOR INDUSTRIAL ROLLS
A method of determining the width of a nip formed by an industrial roll and a mating structure includes: providing an industrial roll having a cylindrical core, a polymeric cover surrounding the core and a plurality of pressure sensors mounted in the roll. The industrial roll is positioned in contact with the mating structure to form a nip and the industrial roll is rotated. Pressure signals are received from the pressure sensors at a controller. The pressure signals are utilized to determine the width of the nip at locations on the roll. The pressure signals are used to determine the peak pressure for a sensor, two signals are identified that correspond to a pressure level that is less than the peak and a partial nip width is calculated from the two signals, and the partial nip width is multiplied by multiplier to determine an estimated nip width.
G01B 7/04 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/04 - 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
41.
Nip width sensing method and system for industrial rolls
A method of determining the width of a nip formed by an industrial roll and a mating structure includes the steps of: providing an industrial roll having a cylindrical core and a polymeric cover surrounding the core, the industrial roll further comprising a plurality of pressure sensors mounted in the roll (optionally distributed in a helical pattern on the roll about a longitudinal axis of the roll); positioning the industrial roll in contact with the mating structure to form a nip; rotating the industrial roll; receiving pressure signals from the plurality of pressure sensors at a controller; and in the controller, utilizing the pressure signals from the pressure sensors to determine the width of the nip at locations on the roll associated with the pressure sensors.
G01B 21/06 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
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)
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/04 - 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
A method of determining the width of a nip formed by an industrial roll and a mating structure includes the steps of: providing an industrial roll having a cylindrical core and a polymeric cover surrounding the core, the industrial roll further comprising a plurality of pressure sensors mounted in the roll (optionally distributed in a helical pattern on the roll about a longitudinal axis of the roll); positioning the industrial roll in contact with the mating structure to form a nip; rotating the industrial roll; receiving pressure signals from the plurality of pressure sensors at a controller; and in the controller, utilizing the pressure signals from the pressure sensors to determine the width of the nip at locations on the roll associated with the pressure sensors.
G01B 7/04 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/04 - 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
43.
BOWED INDUSTRIAL ROLL WITH HIGH STRENGTH BEARING FOR END SPOOL
An industrial roll includes: a stationary axle (120) having a stepped profile and a bowed longitudinal axis, with a thicker internal section (124) and a thinner end section (122); an end spool (100) rotatably mounted on the axle (120); and a first thick ball bearing (117) and a second thin ball bearing (107), wherein the first ball bearing (117) is mounted between the spool (100) and the thin section (122) of the axle, and the second ball bearing (107) is mounted between the spool (100) and the thick section (124) of the axle.
An industrial roll includes: a substantially cylindrical core having an outer surface; a polymeric cover circumferentially overlying the core outer surface; and a sensing system. The sensing system includes: a first signal carrying member serially connecting a first set of sensors; a second signal carrying member serially connecting a second set of sensors; and a signal processing unit operatively associated with the first and second signal carrying members and configured to selectively monitor the signals provided by the first and second set of sensors.
B05C 1/08 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
An industrial roll includes: a substantially cylindrical core having an outer surface; a polymeric cover circumferentially overlying the core outer surface; and a sensing system. The sensing system includes: a first signal carrying member serially connecting a first set of sensors; a second signal carrying member serially connecting a second set of sensors; and a signal processing unit operatively associated with the first and second signal carrying members and configured to selectively monitor the signals provided by the first and second set of sensors.
An industrial roll includes: a substantially cylindrical metallic core; a rubber base layer that is adhered to and circumferentially overlies the core; a rubber top stock layer that circumferentially overlies the base layer; and a polyurethane coating that circumferentially overlies the top stock layer. In this configuration, the roll can provide improved abrasion-resistance, sheet release properties, and/or toughness compared to a roll with a rubber cover, but may provide these properties in a cover that is softer than a typical polyurethane cover.
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
08 - Hand tools and implements
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
14 - Precious metals and their alloys; jewelry; time-keeping instruments
16 - Paper, cardboard and goods made from these materials
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
20 - Furniture and decorative products
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
24 - Textiles and textile goods
26 - Small items for dressmaking; artifical flowers; false hair
27 - Floor and wall coverings
30 - Basic staples, tea, coffee, baked goods and confectionery
Goods & Services
(1) Sheet-handling equipment used in the manufacturing of textiles, paper, plastic film and similar flexible material and component parts of such equipment.
(2) Scrays;
(3) Electrical controls;
(4) Uncurlers;
(5) Tension controls;
(6) Pneumatic controls;
(7) Electronic controls;
(8) Winders and letoffs;
(9) Brakes and clutches;
(10) Web viewer;
(11) Optical controls;
(12) Weft stabilizer;
(13) Rolls, rollers and coverings. All used with sheet-handling equipment;
(14) Sheet guiders;
(15) Expanders;
(16) Weft straighteners;
(17) Equipment for controlling and maintaining tension in textile, paper and plastic webs;
(18) Equipment for automatic storing and feeding rolls of textiles, paper and plastic into other manufacturing equipment;
(19) Equipment for automatic opening and smoothing of textile cloth for storage or further processing;
(20) Equipment for controlling and maintaining tension in textile, paper and plastic webs and feeding such webs into other processing machinery.
