Abstract: An apparatus for manufacturing a belt-like electrode including: a pair of press rolls configured to press a belt-like current collector foil with an electrode mixture layer along a longitudinal direction in a thickness direction of the electrode mixture layer; and a stretching roll configured to stretch a non-forming part which is the current collector foil without the electrode mixture layer in respective ends in a width direction is provided. The stretching roll includes: a first roll opposed to the electrode mixture layer formed in the current collector foil; and a pair of second rolls arranged in respective ends of the first roll in an axial direction and opposed to the non-forming part, and a central axis of the first roll is deviated with respect to a central axis of the pair of second rolls in a direction away from the stretched current collector foil.

Abstract: Collecting data includes generating a sensor signal from each of a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a region of a nip between the sensing roll and mating roll during each rotation of the sensing roll; wherein a web of material travels through the nip and a continuous band contacts a region of the web of material upstream from or at the nip. A periodically occurring starting reference is generated associated with each rotation of the continuous band and the signal generated by each sensor is received so that the one of the plurality of sensors which generated this signal is determined and one of a plurality of tracking segments associated with the continuous band is identified. The signal is stored to associate the respective sensor signal with the identified one tracking segment.

Abstract: A sensor signal is generated from a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a first nip between the sensing roll and a rotating component during each rotation of the sensing roll. A rotating applicator rod forms forming a second nip with the sensing roll such that each sensor enters the second nip during each rotation of the sensing roll. A periodically occurring starting reference is generated associated with each rotation of the applicator rod and the signal generated by each sensor is received so that a particular one of the sensors which generated the signal is determined and one of a plurality of tracking segments is identified. The signal is stored to associate the sensor signal with the identified one tracking segment.

Abstract: Multiple groups of sensors are circumferentially spaced apart at each cross-directional position along a sensing roll of a nip press to measure and cancel or nearly cancel the effects of rotational variability which may be acting on the sensing roll. The strategically-placed sensors are designed to measure the pressure being placed against the web that is being advanced through the nip press. The average of the measurements of multiple sensors spaced circumferential apart provides a good cancellation of any rotational variability that might be found at a cross-directional position on the sensing roll. In this manner, a more true measurement of the nip pressure profile can be obtained and better adjustments made to reduce nip pressure profile variability. In addition, the nip variability profile may be used as a predictor of cover or bearing failures, resonant frequencies and other roll anomalies.

Abstract: 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.

Abstract: 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.

Abstract: A deflection compensating roller including a rotating roller casing, a rotationally fixed yoke axially extending through the roller casing, at least one hydrostatic support device arranged between the yoke and the roller casing, the at least one hydrostatic support device comprising a pressure compartment and at least one oil pocket that communicates with the pressure compartment via at least one first restricted flow zone and at least one second restricted flow zone, and a fluid comprising at least one of an electrorheological fluid (ERF) and a ferro fluid. A viscosity of the fluid is adapted to be varied by way of one of an electric and magnetic field. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: 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.

Abstract: A sheet film forming roll includes a center rotary shaft. Fixed end plates are disposed in two locations which are away from each other in an axial direction of the center rotary shaft, respectively. An external cylinder is made of a metal thin film. Two ends of the external cylinder are rotatably supported by the fixed end plates, respectively. Multiple rolling rubber rolls have ends which are rotatably supported by the respective fixed end plates. The rolling rubber rolls are in sliding contact with an outer peripheral surface of the center rotary shaft, and in sliding contact with an inner peripheral surface of the external cylinder. The rolling rubber rolls divide an annular space between the external cylinder and the center rotary shaft into multiple heating medium chambers arranged in a circumferential direction of the sheet film forming roll. A heating medium is configured to be filled in each of the multiple heating medium chambers.

Abstract: The present invention provides a method for creating uniform pressure at a nip comprising the acts of providing a stationary inner core, pivotally mounting a plurality of shoes to the stationary inner core, creating a plurality of annular chambers wherein each of the shoes occupies one of the chambers. In addition, the method further provides filling each of the chambers with a magneto-rheological fluid, surrounding the plurality of chambers, shoes, and stationary inner core with a thin, metal, rotatable shell; detecting a deformation in the shell and changing a magnetic field in at least one of the chambers to change a viscosity of the magneto-rheological fluid to correct the deformation.

Abstract: Visual or vocal signals indicating the amount of paper used or the amount of paper remaining on a roll of paper. A roll of paper including stickers or numerals stuck, printed 20 or embossed onto the paper at different positions in the roll where the stickers or numeral differing one from another depending on the position of the sticker in the roll.

Abstract: A pressure roller (3; 7) for devices for processing continuous web materials is described, comprising a lateral surface (3S; 7S), including a regulating system (29, 50) to impose an adjustable crown of the lateral surface (3S; 7S) of the roller deforming said lateral surface.

Abstract: A sheet conveyance roller, having an axis; a rotational member that is provided at the outer peripheral part of the axis capable of rotating in accordance with rotation of the axis, and conveys the sheet abutting against the outer peripheral part upon rotation; and an IC tag having a storage function and a wireless communication function. Then, at least part of the IC tag is embedded in the rotational member.

Abstract: 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; and a sensing system. The sensing system comprises: 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, wherein at least some of the sensors include an aperture; and a processor operatively associated with the sensors that processes signals provided by the sensors. In some embodiments the shell and cover include through holes that extend through the sensor apertures.

Abstract: A compliant pressure roller (10) for creating uniform pressure at a nip comprises a stationary inner core (12). A plurality of shoes (14) is pivotally mounted to the stationary inner core. Dividers (16) create a plurality of annular chambers (18) wherein each of the shoes occupies one of the chambers. A non-Newtonian fluid (70) fills each of the chambers. A plurality of actuators is connected to at least one of the shoes. A thin, rotatable shell surrounds the plurality of chambers, shoes, and stationary inner core.

Abstract: A roller for a device for processing a filter material ribbon in the tobacco-processing industry. The roller comprises a roller core and a covering for the roller core. The roller has at least one wear indicator operatively arranged for indicating wear of the covering.

Abstract: 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; 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 a signal-carrying member serially connected with and extending between the plurality of sensors. The signal-carrying member follows a helical path over the outer surface of the shell, wherein the signal-carrying member extends between adjacent sensors and extends over more than one complete revolution of the shell outer surface (and, preferably, an intermediate segment of the signal-carrying member extends over more than a full revolution of the roll between adjacent sensors).

Abstract: 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; 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 a signal-carrying member serially connected with and extending between the plurality of sensors. The signal-carrying member follows a helical path over the outer surface of the shell, wherein the signal-carrying member extends between adjacent sensors extends over more than one complete revolution of the shell outer surface (and, preferably, an intermediate segment of the signal-carrying member extends over more than a full revolution of the roll between adjacent sensors).

Abstract: The invention relates to a method for providing a roll (1) for a paper machine with sliding bearings, the roll comprising a stationary roll axle (3) and a tubular roll mantle (2) arranged to revolve around it. In the method, the roll mantle (2) is supported on the roll axle (3) by means of hydraulic sliding bearing members (4a, 4b, 5a, 5b; 25, 28; 40a, 40b) which are arranged to accomplish radial fitting with bearings of the roll mantle in the loading direction and in the lateral direction with respect to it, and the axial fitting with bearings of the roll mantle. The sliding bearing members are loaded by means of a hydraulic medium, the feed of which to the sliding bearing members is controlled by means of control valves (6; 30; 40).

Abstract: A deflection compensated roll has a stationary support structure and a shell rotatably arranged around it by means of slide bearings. The shell is additionally supported on the support structure with hydraulic loading devices by which the axial profile of the shell can be controlled. In the procedure, at least the pressure acting in the main bearing elements of the slide bearings effective in oppsite directions in the nip plane is measured by conducting pressure data from a pressure space between a control valve associated with the main bearing elements and each main bearing element by means of measurement ducts outside the roll where the pressure data is passed to a pressure sensor.

Abstract: A synthetic roll shell, as well as its manufacture and utilization in press rolls, used for the purpose of measuring the pressure progression in a press nip of a machine for the production and/or conversion of a paper, cardboard, tissue or other type of fiber web.

Abstract: An improved bowed roll assembly and system that can be adjusted during operation to alter critical speeds to outside the range of the operational speed of the assembly, and methods of altering critical speeds of the roll assembly during its operation to inhibit harmonic vibration are provided. In one embodiment, the bowed roll assembly system includes a programmable logic controller (PLC) and accelerometer, and the critical speeds of the roll assembly are “learned” by the PLC which triggers changes to the pressure of the pressure applying member of the assembly to alter the roll's stiffness and the critical speeds.

Abstract: A composite-construction roll, includes a roll frame reinforced with reinforcing fibers, and a method for manufacturing such a roll. There is at least one optical fibre among the reinforcing fibers and the roll includes terminals arranged in this optical fibre for a transmitter and a receiver for measuring a selected optical quantity from the fibre.

Abstract: An apparatus for displacing the roll mantle end pieces of shoe press, said shoe press comprising a press roll (1) and a backing roll, said press roll (1) comprising a rotating, liquid-impermeable roll mantle (2), a solid and preferably non-rotatable support beam (3) going axially through the roll mantle and having a stub shaft (4, 5) at each end of it, at least one press shoe supported by the support beam and having a concave surface part, elements for pressing the concave surface part against the roll mantle so that the mantle together with the backing roll can form a pressing zone, two roll mantle end pieces (6, 7) axially movable on each stub shaft, fastening elements for fastening the axial ends of the roll mantle to each roll mantle end piece. The apparatus comprises a multi-chamber cylinder unit (8) functionally connected to both roll mantle end pieces, said cylinder unit being disposed inside the support beam (3) and used to move both roll mantle end pieces (6, 7).

Abstract: A paired roller configuration is described and contains a first roller disposed rotatably in a first machine unit and a second roller disposed rotatably in a second machine unit and substantially parallel to the first roller. The first and second rollers guide a web that wraps partly around the first and second rollers. The first roller is disposed such that it can move in the first machine unit and, by at least one connecting unit, is connected to the second roller in such a way that in the event of movement and/or deformation of the first machine unit, the first roller and the second roller remain disposed substantially parallel to each other and at a substantially constant spacing.

Abstract: A tubular roll with glide bearings and a method for providing a tubular roll mantle with glide bearings. The roll mantle is supported on a roll axle by hydraulic glide bearing elements which are loaded hydraulically by a pressure medium. The roll is loaded from outside radially in a principal loading direction and the roll mantle is supported on the roll axle by glide bearing elements in the principal loading direction. The loading pressure and lubricant are fed to the glide bearing elements as separated from one another so that the movement of the roll mantle, the speed of movement and the change in speed are regulated by opening, closing and/or throttling the flow in the pressure duct of the loading pressure. The lubricant may be fed to the glide bearing elements irrespective of the loading pressure.

Abstract: A system for controlling deflection of a dynamic surface includes at least one sensor in communication with the dynamic surface for detecting the presence of a deflecting force on the dynamic surface and generating a feedback signal proportional to the deflecting force. The system includes a controller in communication with the at least one sensor for receiving the feedback signal and generating an output signal in response to the feedback signal. At least one piezoelectric actuator is in communication with the dynamic surface and in communication with the controller for receiving the output signal and applying a counter deflecting force on the dynamic surface for removing the deflection from the dynamic surface. In other preferred embodiments, the piezoelectric actuators maintain the dynamic surface in a preferred shape, such as a curved surface.

Abstract: In order to control and optimize, without stopping production, bowing in the outer wall of a calender roll in which bowing is produced by the action of pressure on an incompressible liquid enclosed in the roll, the invention proposes that, based on error signals generated from continuous thickness measurements and from at least one other quality characteristic, the temperature of the liquid is controlled and the nip modified to correct for deviations from the correct thickness.

Abstract: A method of controlling vibration of a dynamic surface includes providing at least one piezoelectric actuator in communication with the dynamic surface, and providing a mass over the at least one piezoelectric actuator so that the at least one piezoelectric actuator lies between the mass and the dynamic surface. The method includes sensing vibration of the dynamic surface, and activating the at least one piezoelectric actuator after sensing vibration of the dynamic surface for applying a counter force between the dynamic surface and the mass for reducing or controlling vibration of the dynamic surface.

Abstract: A sliver supplying apparatus for simultaneously feeding a plurality of slivers to a draw frame includes an intake table; a plurality of supply rolls supported in a series by the intake table for guiding the slivers from the coiler cans to the draw frame; and an rpm-setting device for individually setting a circumferential speed of the supply rolls. The rpm-setting device includes a roll drive independent from the drive of the draw frame.

Abstract: An apparatus and method for winding tissue webs into a parent roll includes a rotatable reel drum having a flexible outer shell for engaging a web of tissue paper against a reel spool. A deflection sensor is mounted adjacent to the inner surface of the outer shell for measuring the amount of deflection of the flexible outer shell caused by the paper roll. The amount of deflection is related to the pressure at the nip point and, by moving the reel spool and flexible reel drum away from each other as the diameter of the paper roll increases, the pressure can be controlled at a desired level. Accordingly, a predetermined light nip pressure can be applied to the roll as the tissue web is wound thereon and large parent rolls of high bulk tissue can be manufactured with desired properties when unwound.

Abstract: A printing machine, particularly a sheet-fed offset printing machine, which has removable components, such as, in particular, inking-unit, dampening-unit or varnishing-unit rollers, is described. The printing machine includes an arrangement wherein it can be established, particularly via a control station of the printing machine, whether a component and which component is not properly installed. This measure is intended primarily to avoid malfunctions or even machine damage. This is achieved, according to the invention, in that the removable component has a permanent magnet which can be sensed by a sensor mounted fixedly relative to the frame of the printing machine at a point corresponding to the magnetic field produced by the permanent magnet. The signal or signals from one or more sensors are fed to an evaluation unit which determines the proper installation state from these signals.

Abstract: A roll system for use particularly in a papermaking press nip for dewatering a fibrous web, comprising a roll disposed so as to rotatingly cooperate with another roll in a press nip, the roll having a helical sensor for sensing pressure exhibited on the roll, and transmitting pressure signals to a processor as the roll rotates. Trigger signals are generated at certain times as the roll rotates, the time of the occurrence of the trigger signal representing a specific location on the helical sensor. The pressure signals are coordinated with the trigger signals, such that the pressure corresponds to the angular position of the roll where it is sensed. The operator may thus be given a visual or audible indication of the existence of non-uniformities in pressure sensed at various locations along the roll, thereby enabling corrective action to be initiated if necessary.

Abstract: A method for fitting a roll mantle of a tubular roll used in a paper machine or equivalent with glide bearings and a tubular roll. The roll mantle is supported on a stationary roll axle by hydraulic glide bearing elements acting upon the roll mantle and/or upon the roll ends. The bearing elements are loaded hydraulically by the pressure of a first pressure medium. The roll is loaded from outside radially in the direction of at least one plane, i.e. in a so-called principal loading direction. The roll mantle is supported on the roll axle by the glide bearing elements which act radially substantially in the principal loading direction in opposite directions and which are provided with a device for regulating the braking pressure provided by a second pressure medium, so that in the principal loading direction, the roll mantle is allowed to move over a certain distance.

Abstract: A godet for heating and advancing yarns which includes a stationary support member and a rotatable member which includes a heatable godet jacket. The temperature of the godet jacket is measured by means of temperature sensors, the output signals of which are transmitted by induction from the rotatable member to the stationary member. The godet is provided with an electronic memory, which is connected with the temperature sensors and stores the data supplied by the temperature sensors. The memory is connectible to a data transmission unit, and the data are transmitted by induction between a stationary primary coil and a rotating secondary coil, which also provides the supply of voltage to the rotating member. In this conjunction, it is possible to transmit the data both from the rotating member to the stationary member of the godet and from the stationary member to the rotating member.

Abstract: A roll system for use particularly in a papermaking press nip for dewatering a fibrous web, comprising a roll disposed so as to rotatingly cooperate with another roll in a press nip, the roll having a helical sensor for sensing pressure exhibited on the roll, and transmitting pressure signals to a processor as the roll rotates. Trigger signals are generated at certain times as the roll rotates, the time of the occurrence of the trigger signal representing a specific location on the helical sensor. The pressure signals are coordinated with the trigger signals, such that the pressure corresponds to the angular position of the roll where it is sensed. The operator may thus be given a visual or audible indication of the existence of non-uniformities in pressure sensed at various locations along the roll, thereby enabling corrective action to be initiated if necessary.

Abstract: A system for measuring the dynamic pressure distribution between rolls in a nip roll press comprises a roll adapted to rotatingly contact at least one other roll in a press nip, having one or more sensors thereon, for measuring the nip pressure at several locations along the roll length, wherein the measurements obtained by the sensors are transmitted to a computer and a display, to provide tabular, numerical and graphical representations of the pressure at one or more locations on the roll. Optionally a control system may be incorporated in the system for determining the pressure distribution along the roll and initiating corrective measures. The system of the instant invention can further measure temperature variations, if desired, as thermal sensors can be used on the sensing roll, or a computerized correlation scheme can relate sensor readings to temperature as well as pressure.

Abstract: An automatic paper feeding apparatus is designed to separate and feed originals by means of a separation pad and a feeding roller. A pressure sensitive conductive rubber is used for the separation pad to convert a change in thickness of an original into an electrical signal, thereby detecting a conveyed state, e.g., a multiple paper-conveying error, of the original.

Abstract: It is an object of this invention to allow detection of multiple paper-conveying of an original sheet in image reading or forming operation and facilitate a recovery operation. An automatic original feeding apparatus of this invention uses pressure sensitive conductive rubber in a feeding roller, and changes in length and thickness of a sheet are changed into electrical signals, so that the conveyed state such as multiple paper-conveying of the sheet can be detected.

Abstract: A heated calender roll at a predetermined operating temperature has a roll body having a cylindrical outer surface centered on an axis and formed radially inward from the surface with at least one axially extending passage, a pair of hub elements axially flanking and joined to the roll body, and at least one electrical heating element in the passage. A mass of heat-conducting metal in the passage has an outer surface bonded to but distinct from the roll body and an inner surface bonded to but distinct from the heating element. The metal has a melting point in excess of the operating temperature of the roll. The calender roll can be formed with a plurality of such passages each receiving a respective such electrical heating element and a respective mass of the heat-conducting metal. Alternately it can be formed with a single such passage receiving a plurality of such electrical heating elements and the mass of the heat-conducting metal.

Abstract: A calender for producing packing sheets, in particular packing sheets reinforced with synthetic fiber, has a large diameter heated cylinder, on which a packing sheet is formed and vulcanized, rotatably supported by spaced calender stands and driven by a direct current motor. An unheated cylinder of smaller diameter also driven by a direct current motor, is supported by the calender stands for rotation and for movement toward and away from the heated cylinder and is hydraulically pressed toward the heated cylinder as a pressure roller. The circumferential speed of each of the cylinders is sensed by a pick-up activated by uniformly spaced marks on the circumference of the cylinder and the thickness of the packing sheet on the heated cylinder is sensed by sensing the position of the shaft of the pressure roller.

Abstract: A flexure compensated roll comprising a rotatable roll shell around a longitudinally extending support therethrough. A longitudinally extending press shoe supported on the support. A piston movably supported on the support above a sealed pressure space. The piston has a saddle toward the interior of the roll casing. The shoe has a middle pressure chamber fluid connected with the pressure space of the piston. The shoe also has rows of hydrostatic pockets on both circumferential sides of the middle chamber. These are supplied by narrowed choke passages with hydraulic fluid. The supply of hydraulic fluid to the hydrostatic pockets bypasses the piston pressure space and/or the middle chamber and is from a pressure source to the hydrostatic pockets without pressure regulation. A regulating valve controls the force between the longitudinal support and the casing of the roll by setting the pressure in the middle chamber and by setting the pressure in the piston pressure space.

Abstract: A self-loading controlled deflection roll for forming a controlled pressure nip with another roll along a nip line with a hollow rotatable roll shell rotatable on an axis and a roll shaft extending through the shell and radially supporting the shell along the nip line with axially facing surfaces on the shaft and rollers rolling on said surfaces supported on the rotating roll shell accommodating bending of the roll shaft relative to the roll shell fixing their relative axial positions. One roller is axially fixed and the other roller is mounted on a rocker arm loaded with the piston and cylinder.