B65H23/1806

SYSTEMS FOR UNWINDING A ROLL OF THERMOPLASTIC MATERIAL INTERLEAVED WITH A POROUS MATERIAL, AND RELATED METHODS
20180022562 · 2018-01-25 ·

An apparatus (un-interleaver) for unwinding a roll of material interleaved with another material, and for separating the materials, includes a first platform, a second platform, a tension-sensor, an edge-sensor, and a controller. The controller monitors signals generated by the tension sensor and the edge sensor, and in response to the signals: a) causes the speed at which the second platform rotates to change to maintain a predetermined tension in the second material as the second material travels from the first platform toward the second platform, and b) causes the second platform to move relative to the first platform to align the edge of the second material traveling toward the roll of second material with the edge of the second material in the roll.

Web transport system including scavenger blade

A web transport system for transporting a web of media along a web-transport path including a fluid bar for guiding the web of media, and a scavenger blade positioned downstream of the fluid bar. A liquid is pumped through holes in an exterior bearing surface of the fluid bar, thereby pushing the web of media away from the fluid bar. The scavenger bar includes a blade edge facing the first surface of the web of media, the blade edge being spaced apart from the first surface of the web of media by a gap distance. The scavenger blade removes at least some liquid from the first surface of the web of media as it passes by the scavenger blade, thereby reducing the amount of liquid that is carried along to portions of the web-transport path that are downstream of the scavenger blade.

Roll-to-roll continuous coater for CCM preparation, and roll material connection method

A roll-to-roll continuous coater for CCM preparation, and a coiled material connection method are provided. The coater has a coiled material connection mechanism that includes an upper rack (2) and a lower rack (3). A vacuum suction plate I (2-3) provided with a driving device for achieving displacement and a vacuum suction plate II (3-1) provided with a solid glue spraying device (3-3) are respectively disposed on the bottom of the upper rack (2) and the top of the lower rack (3). An optical fiber sensor I (2-4) and an optical fiber sensor II (3-2) are respectively disposed in the vacuum suction plate I (2-3) and the vacuum suction plate II (3-1). A tension detection device (4) is disposed between the lower rack (3) and a driving roller assembly (1).

REWINDING MACHINE AND METHOD FOR CONTROLLING THE SPEED OF THE MOTORS IN A REWINDING MACHINE
20240400330 · 2024-12-05 ·

The rewinding machine (1) includes: a winding station (3) with winding members (5, 7) operated by winding motors (8.1, 8.2); an unwinder (31.1, 31.2) with an unwinding member (35.1, 35.2) operated by at least one unwinding motor (38.1, 38.2); a guide roller (43.1, 43.2) along a feed path (P) of the web material (N, N2). There is associated with the guide roller (43.1,43.2) at least one load sensor (42.1, 42.2), adapted to detect a parameter proportional to the tension of the web material (N; N2) guided around the guide roller (43.1,43.2). There is also provided a control unit (71) adapted to modulate a difference in speed between the winding members (5, 7) and the unwinding member (35.1,35.2) as a function of a signal corning from the load sensor (42.1,42.2).

TAPE POSITIONING SYSTEM AND METHOD
20170192026 · 2017-07-06 ·

A method of positioning a tape that includes determining an estimated position of a test element on the tape and rotating a spool that carries the tape in order for the test element to be positioned at a reading station. The estimated position of the test element is determined based on detected rotation of the spool, which can be measured at any shaft in the drive train. Also disclosed is a testing process for testing a sample deposited on a test element of a tape held on a spool of a cassette, a system for determining an estimated position of a test element on a tape which is carried by a cassette, and a memory storage medium associated with an in vitro diagnostic test cassette.

INTER-ROLLER CONVEYANCE CONTROL DEVICE

An inter-roller conveyance control device conveying an object to be conveyed between a speed shaft roller driven by a speed shaft motor and a tension shaft roller driven by a tension shaft motor while providing tension to the object includes a gain table that stores a plurality of pairs of a conveyance condition variable changing while the object to be conveyed is conveyed and affecting an appropriate value of a control parameter and a control parameter candidate value that is an appropriate control parameter where, when the conveyance condition variable is changed, the device performs calculation on the basis of the conveyance condition variable and a gain calculation result and writes, into the gain table, the control parameter candidate value and the conveyance condition variable in association with each other when the calculation is completed.

Roller-to-roller conveyance control apparatus

The roller-to-roller conveyance control apparatus includes an amplitude target setting unit that sets an amplitude target value of the tension deviation; an adjustment execution command generation unit that provides a command to adjust the control gain; an adjustment manipulated-variable output unit that outputs an adjustment manipulated variable; a manipulated-variable amplitude determination unit that increases the amplitude of the adjustment manipulated variable until the amplitude of the tension deviation becomes larger than the amplitude target value; and a control-gain calculation device that calculates the control gain from the amplitude and the vibration period of the tension deviation. A tension-shaft speed controller controls a tension-control-shaft motor on the basis of the line speed reference and the adjustment manipulated variable during the adjustment of the control gain.

MEDIA TRANSPORTING DEVICE AND INKJET PRINTER

A tension applying member of an inkjet printer can apply tension on a printing medium by pushing a portion of the printing medium that is not wound by a winding mechanism by its own weight in a rotating direction indicated with an arrow having an axis line as a center; a transport controller causes a motor to generate a power for winding the printing medium when a predetermined tension is no longer applied on the printing medium by the tension applying member; and the winding mechanism limits a torque with a torque limiter and applies a predetermined tension on the printing medium when the motor is caused to generate the power for winding the printing medium when the predetermined tension is no longer applied on the printing medium by the tension applying member.

ROLL-UP APPARATUS
20170072719 · 2017-03-16 ·

A roll-up apparatus for rolling up a continuous sheet into a roll shape, comprises a tension generation unit configured to generate a changeable tension to the continuous sheet; and a control unit configured to control the tension generation unit based on a roll-up condition of the continuous sheet.

Tensioning Control Device
20170036800 · 2017-02-09 ·

A tensioning control device having a first motor that applies a torque to a first end of a substrate in a first direction and a second motor that applies a torque to a second end of the substrate in a second direction that is generally opposite the first direction is disclosed. In this manner, the first motor and the second motor apply torque to the substrate in opposing directions, thereby placing the substrate in tension. In one embodiment, the first motor applies a torque to the first end of the substrate that is equal to the torque applied to the second end of the substrate by the second motor. By placing the substrate in tension in this manner, an actuator is able to incrementally move the substrate in a forward direction and a backward direction independent of the tension applied to the substrate.