Disclosed is a web handling system that includes a spindle having a spindle magnetic coupling portion and a roll core configured for receiving the spindle for mounting thereon and having a roll magnetic coupling portion, wherein the spindle and roll magnetic coupling portions are configured for magnetically attracting each other to hold the roll on the spindle.

A sheet conveyor includes: a holder that detachably holds a sheet roll; a rotation measuring device that measures a rotation amount of the sheet roll; a conveyance roller that conveys a sheet pulled out from the sheet roll held by the holder; a tensioner that is provided between the holder and the conveyance roller and that contacts with the sheet pulled out from the sheet roll toward the conveyance roller; a position detector that detects a position of the tensioner; a motor that generates driving force for rotating the conveyance roller; and a controller that controls the motor. The controller estimates a diameter of the sheet roll based on a conveyance amount of the sheet caused by rotation of the conveyance roller, a rotation amount of the sheet roll measured by the rotation measuring device, and a position of the tensioner detected by the position detector.

Maintaining a level of tension on material as it is processed in a manufacturing operation assists in the processing of the material. The tension of the material as it is fed through a process station is maintained by a material sag portion, such as an unsupported portion of the material extending between a roll of the material and the process station. The formation of the sag portion and the loading of the material forming the sag portion are automated and adjusted with a system having a material storage retrieval system, a shuttle, a tensioning device, and/or a processing station.

Maintaining a level of tension on material as it is processed in a manufacturing operation assists in the processing of the material. The tension of the material as it is fed through a process station is maintained by a material sag portion, such as an unsupported portion of the material extending between a roll of the material and the process station. The formation of the sag portion and the loading of the material forming the sag portion are automated and adjusted with a system having a material storage retrieval system, a shuttle, a tensioning device, and/or a processing station.

A card manufacturing method includes feeding a reference sheet serving as a reference for alignment; feeding a first continuous sheet having a plurality of patterns repeatedly printed as one cycle thereon; producing a laminated sheet by laminating the first continuous sheet on the reference sheet; successively detecting a position of each one of the repeatedly printed patterns by detection means; adjusting such that the patterns are at predetermined positions with respect to the reference sheet by controlling a feeding speed of the first continuous sheet according to a detection result on the positions of the patterns; and producing a card by cutting the laminated sheet for each of the patterns, the patterns being printed so that plural patterns are repeatedly printed as one cycle, the adjustment being performed for each cycle made up of the plurality of patterns.

An apparatus for manufacturing the electrode assembly, in which an electrode and a separator are alternately stacked on a stack table, and the separator is folded in a zigzag shape so that the electrode is disposed between the folded separators to manufacture the electrode assembly, has a separator supplier configured to supply the separator to the stack table, and a separator tension adjuster configured to constantly adjust tension of the separator supplied to the stack table. The separator supplier comprises a separator winding roll around which the separator is wound, and the separator tension adjuster adjusts a. supply height of the separator winding roll to adjust the tension of the separator.

Disclosed is a web handling system that includes a spindle having a spindle magnetic coupling portion and a roll core configured for receiving the spindle for mounting thereon and having a roll magnetic coupling portion, wherein the spindle and roll magnetic coupling portions are configured for magnetically attracting each other to hold the roll on the spindle.

Disclosed is a web handling system that includes a spindle having a spindle magnetic coupling portion and a roll core configured for receiving the spindle for mounting thereon and having a roll magnetic coupling portion, wherein the spindle and roll magnetic coupling portions are configured for magnetically attracting each other to hold the roll on the spindle.

A supply device (3) for supplying substrate strips (10, 10′; 11, 11′) to a double-belt press (2) for pressing the substrate strips (10, 10′; 11, 11′) together includes unwinding stations (4, 5) each having an unwinding shaft (6, 7) for receiving a substrate strip roll (8, 9) and serving to unwind the substrate strips (10, 10′; 11, 11′) from the substrate strip roll (8, 9), at least one of the unwinding stations (4) having a force-measuring device with a measuring shaft (16, 17) around which one of the substrate strips (10, 10′; 11, 11′) can be wrapped, an auxiliary shaft (18, 19) being assigned to the measuring shaft, wherein the auxiliary shaft (18, 19) and the measuring shaft (16, 17) of the unwinding station (4) are moveable relative to each other between a guiding position for guiding the substrate strip (10, 10′; 11, 11′) from the roll of the substrate strip rolls (8, 9) through a gap between the measuring shaft (16, 17) and the auxiliary shaft (18, 19) and an operating position defining a pre-defined and/or pre-definable wrap angle (χ) of the substrate strip (10, 10′; 11, 11′) around the measuring shaft (16, 17) by an adjusting drive.

A supply device (3) for supplying substrate strips (10, 10′; 11, 11′) to a double-belt press (2) for pressing the substrate strips (10, 10′; 11, 11′) together includes unwinding stations (4, 5) each having an unwinding shaft (6, 7) for receiving a substrate strip roll (8, 9) and serving to unwind the substrate strips (10, 10′; 11, 11′) from the substrate strip roll (8, 9), at least one of the unwinding stations (4) having a force-measuring device with a measuring shaft (16, 17) around which one of the substrate strips (10, 10′; 11, 11′) can be wrapped, an auxiliary shaft (18, 19) being assigned to the measuring shaft, wherein the auxiliary shaft (18, 19) and the measuring shaft (16, 17) of the unwinding station (4) are moveable relative to each other between a guiding position for guiding the substrate strip (10, 10′; 11, 11′) from the roll of the substrate strip rolls (8, 9) through a gap between the measuring shaft (16, 17) and the auxiliary shaft (18, 19) and an operating position defining a pre-defined and/or pre-definable wrap angle (χ) of the substrate strip (10, 10′; 11, 11′) around the measuring shaft (16, 17) by an adjusting drive.