B65H2557/264

MOTOR CONTROL DEVICE AND SHEET CONVEYANCE APPARATUS
20200119675 · 2020-04-16 ·

A motor control device include a detector that detects a drive current flowing through a winding of a motor, a first determiner that determines a rotation phase of a rotor of the motor, using preset control values, a controller that controls the drive current to reduce a deflection between the rotation phase determined by the first determiner and an instructed phase representing a target phase of the rotor, a first discriminator that determines whether rotation of the motor is abnormal, and a second discriminator that identifies a type of a motor attached to the motor control device.

If the first discriminator determines that the rotation of the motor attached to the motor control device is abnormal, the controller sets a control value corresponding to the type of the motor identified by the second discriminator, as the control value that the first determiner uses when determining the rotation phase.

APPARATUS FOR WINDING AND PULLING A ROPE LINE AT CONSTANT SPEED
20240025696 · 2024-01-25 ·

A rope pulling apparatus including a drum for having rope wound therearound and a drive apparatus for providing power to the rope pulling apparatus and driving the drum's rotations. The rope pulling apparatus also includes a speed control apparatus monitoring the rope being pulled and wound on the drum and a controller for determining the speed of the rope and adjusting the drive apparatus to speed up or slow down the rotation of the drum responsive to the speed of the rope. A method of winding rope on a drum at a constant rope speed. The method includes winding a rope at a desired constant rope speed onto a drum with a rope pulling apparatus and determining a speed of the rope. The method also includes adjusting power of the rope pulling apparatus to achieve the desired constant speed.

PERFORMING WEB TENSIONING ADJUSTMENTS IN A FOOD PACKAGING SYSTEM BASED ON REINFORCEMENT LEARNING
20240059442 · 2024-02-22 ·

Methods and apparatus, including computer program products, are described for controlling web tensioning in a food packaging machine comprising a plurality of sub-systems. One or more local variable value are received, which indicate measurements by the food packaging machine of one or more physical parameters for a web tensioning sub-system. One or more remote variable values are received, which indicate measurements by the food packaging machine of one or more physical parameters for one or remote sub-systems. One or more control parameter values are determined for the web tensioning sub-system, by processing the remote and the local variable values using a reinforcement learning model and a local control model. One or more control parameters of the web tensioning sub-system are adjusted in accordance with the determined control parameter values.

ELECTRIC VEHICLE CABLE MOUNTING SYSTEM AND METHOD THEREFOR

A electric vehicle cable mounting system includes a driving unit including a rotary disc and allowing a charging cable to be released from a side in accordance with a rotation motion of a rotary disc, a guide unit provided behind the driving unit and allowing the driving unit to move in a vertical direction in accordance with a rotation motion of the rotary disc, and a controller controlling the driving unit and the guide unit such that the charging cable is automatically released in an electric vehicle charge mode and is automatically returned in an electric vehicle charge standby mode.

Dynamic performance and active damping methods in web winder tension control systems

A control system for controlling operation of main and secondary drive units in a web winder system to provide tension control of a continuous material web is disclosed. The control system causes the main drive unit to operate in a velocity mode to set a linear velocity of the continuous material web. The control system receives inputs from tension and speed detectors in the web winder system that detect a tension and speed of the continuous material web and causes the secondary drive unit to operate in a modified torque regulated closed-loop tension control mode so as to control a tension in the web material, with the control system causing the secondary drive unit to operate according to a torque regulated closed-loop tension control mode and integrate a speed feedback loop into the torque regulated closed-loop tension control mode so as to introduce active damping into the tension control.

PRINT MEDIA PICK AND FEED
20190210383 · 2019-07-11 ·

A system to pick print media from a media tray and feed the print media to a media path includes a pick roller to contact the print media and pick the print media from the media tray, a motor to rotate the pick roller, and a controller to operate the motor to rotate the pick roller in a first mode to pick the print media from the media tray and operate the motor to rotate the pick roller in a second mode different than the first mode to feed the print media to the media path.

Vacuum shuttle with stitch and roll capabilities

A sheet registration system includes a transport member on which a sheet is conveyed in a process direction, a vacuum shuttle, and a feedback system. The vacuum shuttle includes a vacuum head which applies suction to the sheet and actuators for rotating the vacuum head in a plane parallel to a plane of the transport member and translating the vacuum head in a cross-process direction. In response to feedback instructions generated by the feedback system, the actuators move the vacuum head, relative to the transport member, while the vacuum is applied to the sheet. The sheet registration system is suitable for use in a printer for reducing skew and lateral offset of sheets of print media.

Rewinding machine and method for controlling the speed of the motors in a rewinding machine
12030736 · 2024-07-09 · ·

The rewinding machine (1) comprises: 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); 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 coming from the load sensor (42.1, 42.2).

Sheet transporting apparatus and image forming system

A sheet transporting apparatus is provided, including a transport mechanism provided with a roller, a motor, a controller, and a measuring input unit, wherein a transport route has a curved area for inverting the sheet, and the controller is constructed such that the control on the motor is executed by a closed loop control system by using a measured value of an control output at an initial stage of the transport of a sheet from a tray, and the control on the motor is switched from the control performed by the closed loop control system to control performed by an open loop control system on condition that a preset phenomenon arises after the sheet is taken out of the tray.

Method for Regulating the Processing of a Material Web on the Basis of Register Marks, and Apparatus for Carrying Out the Method
20190002227 · 2019-01-03 ·

A method for regulating the processing of a material web that has register marks and is driven via at least one drive roller is described, in which the register marks are guided past at least one sensor that captures register marks and an evaluation device determines the deviation of an actual position, corresponding to the capturing event, of at least one processing tool from a predetermined position of the at least one processing tool, and in which a regulating device uses the deviation between the actual position and the predetermined position of the at least one processing tool to regulate the actual processing position of the at least one processing tool. The evaluation device determines the actual distance between successive register marks with regard to the measurement system of the at least one drive roller and correlates this with an expected distance between the register marks with regard to the measurement system of the at least one drive roller.