A roll transfer device and method is provided, which makes it easy to recognize a unique identification code for a material wound on a roll while quickly and accurately aligning a position of the roll. The roll transfer device comprises a pair of holding units disposed to be spaced apart from each other in a first direction, supporting a roll core seated thereon; and a pair of rotation units disposed on both sides of the roll core along the first direction, wherein the pair of rotation units linearly move in the first direction and are inserted into the roll core seated on the holding unit to align a position of the roll, include one or more keys coupled to one or more key grooves formed in the roll core, and are rotated in a state that they are inserted into the roll core, so that the key is coupled to the key groove, thereby rotating the roll.

A roll transfer device and method is provided, which makes it easy to recognize a unique identification code for a material wound on a roll while quickly and accurately aligning a position of the roll. The roll transfer device comprises a pair of holding units disposed to be spaced apart from each other in a first direction, supporting a roll core seated thereon; and a pair of rotation units disposed on both sides of the roll core along the first direction, wherein the pair of rotation units linearly move in the first direction and are inserted into the roll core seated on the holding unit to align a position of the roll, include one or more keys coupled to one or more key grooves formed in the roll core, and are rotated in a state that they are inserted into the roll core, so that the key is coupled to the key groove, thereby rotating the roll.

A cleaning station for removing surface impurities from the surface of a cylindrical magnetic rotor having an axis; the cleaning station comprises: a seat for housing the magnetic rotor in a rotatable manner about its axis; a first pin having an axis parallel to the axis of the magnetic rotor when housed in the seat, wherein the first pin is rotatable about its axis and supports a roll of adhesive tape; a second pin having an axis parallel to the axis for the first pin; wherein the second pin receives an initial unwinding end of the roll of adhesive tape supported on the first pin and is rotatable about its axis to progressively wind the adhesive tape about its axis during unwinding from the first pin; a motorization for commanding the unwinding of the adhesive tape from the first pin and the winding of the adhesive tape on the second pin; a pusher device configured to press the adhesive tape as it passes from the first and to the second pin against the magnetic rotor housed in the seat so that by dragging, the motion of the adhesive tape commands the rotation of the magnetic rotor about its axis and the surface impurities on the magnetic rotor migrate from the magnetic rotor to the adhesive tape remaining attached on the adhesive of the adhesive tape. Main figure: FIG. 6

A cleaning station for removing surface impurities from the surface of a cylindrical magnetic rotor having an axis; the cleaning station comprises: a seat for housing the magnetic rotor in a rotatable manner about its axis; a first pin having an axis parallel to the axis of the magnetic rotor when housed in the seat, wherein the first pin is rotatable about its axis and supports a roll of adhesive tape; a second pin having an axis parallel to the axis for the first pin; wherein the second pin receives an initial unwinding end of the roll of adhesive tape supported on the first pin and is rotatable about its axis to progressively wind the adhesive tape about its axis during unwinding from the first pin; a motorization for commanding the unwinding of the adhesive tape from the first pin and the winding of the adhesive tape on the second pin; a pusher device configured to press the adhesive tape as it passes from the first and to the second pin against the magnetic rotor housed in the seat so that by dragging, the motion of the adhesive tape commands the rotation of the magnetic rotor about its axis and the surface impurities on the magnetic rotor migrate from the magnetic rotor to the adhesive tape remaining attached on the adhesive of the adhesive tape. Main figure: FIG. 6

An edge protection mounting device 200 is provided, comprising an edge protection material guide 300, configured to feed out and guide edge protection material 400 into a correct position along an outer edge of a sheet coil 116 from the side of an end of the sheet coil 116. Further, a system 100 for sheet coil packaging is provided, comprising: a sheet coil wrapping arrangement 112, 113; a sheet coil rotating arrangement 120, arranged to rotate a sheet coil 116 while it is wrapped; and two edge protection mounting devices 200, each comprising an edge protection material guide 300, arranged to feed out and guide edge protection material 400 into a correct position along an outer edge of a sheet coil 116 from the side of an end of the sheet coil 116 as it is rotated, thereby fixing the edge protection material 400 to the outer edges of the sheet coil 116 by 10 the wrapping. The edge protection mounting devices 200 are preferably arranged beside opposite ends of the sheet coil 116.

A coating deviation correction method includes acquiring a plurality of first distances and a plurality of second distances, where each of the plurality of first distances is a distance from an edge of a coating region on a first surface of an electrode plate substrate to a reference edge, each of the plurality of second distances is a distance from an edge of a coating region on a second surface of the electrode plate substrate to the reference edge, and the plurality of first distances and the plurality of second distances are obtained by sampling a plurality of times within one sampling period; and determining a target deviation correction amount in a coating process based on the plurality of first distances, the plurality of second distances, and at least one preset deviation correction amount.

A sheet supplied from a roll is conveyed by a first conveyance unit and a second conveyance unit located on a downstream side of the first conveyance unit. The sheet is conveyed by a first conveyance amount while being inspected by a sensor for a spliced portion, which is a splice between sheets, and in a case where the spliced portion is not detected while the sheet is conveyed by the first conveyance amount, the first conveyance amount is changed in a control operation of causing a head to start ejecting liquid onto the sheet.

A film attaching apparatus may include: a tape supply portion selectively supplying first tape provided on a first supply roll and second tape provided on a second supply roll; a tape cutting portion cutting the first tape or the second tape to a predetermined size; a film attaching portion attaching a protective film formed by cutting the first tape or the second tape to a battery cell; and a tape connection portion connecting the first tape and the second tape, when one of the first tape and the second tape is exhausted.

A film attaching apparatus may include: a tape supply portion selectively supplying first tape provided on a first supply roll and second tape provided on a second supply roll; a tape cutting portion cutting the first tape or the second tape to a predetermined size; a film attaching portion attaching a protective film formed by cutting the first tape or the second tape to a battery cell; and a tape connection portion connecting the first tape and the second tape, when one of the first tape and the second tape is exhausted.

A sheet supply device includes a supporter, a rotation device, a guide, a support shaft, a biasing member, a sensor, a roller, and control circuitry. The sensor is disposed to protrude from the facing portion toward the roll and biased in a direction to contact the outer peripheral surface of the roll. The sensor outputs a detection signal at a level corresponding to an amount at which the sensor protrudes from the facing portion. The roller is supported by the facing portion, to contact the outer peripheral surface of the roll at a position different from a position of the sensor in a circumferential direction of the roll. The control circuitry controls the rotation device based on a signal change rate that is a change amount of the level of the detection signal per unit time. The control circuitry causes the rotation device to rotate the spool in the winding direction, and stops an operation of the rotation device when the signal change rate based on a change in relative positions between the outer peripheral surface and the sensor without passage of a leading end of the sheet through the position of the sensor does not exceed a predetermined reverse set threshold value.