Sheet conveying device and sheet conveying method

Abstract

This disclosure provides a sheet conveying device and a sheet conveying method that can convey cut sheets to subsequent processes with high precision. [Solution] The sheet conveying device according to the present disclosure comprises a rotating roll 10 that conveys a sheet for batteries along its outer surface, a cutting mechanism 20 that cuts the sheet along the outer surface to form individual sheets, and a receiving mechanism 30 that receives the individual sheets from the rotating roll 10. The rotating roll 10 has a plurality of adsorption regions 11 at different positions in the circumferential direction on its outer surface, and each of the plurality of adsorption regions 11 is controlled to switch between an adsorption state in which a sheet or individual sheet is adsorbed to the adsorption region 11 and a release state in which it is released from the adsorption state, independently of the other adsorption regions 11.

Claims

1. A rotating roll that transports the battery sheet along its outer surface, A cutting mechanism for cutting the sheet along the outer peripheral surface to form individual sheets, The system includes a receiving mechanism that receives the individual sheets from the rotating roll, The rotating roll has a plurality of adsorption regions at different positions in the circumferential direction on its outer surface. Each of the aforementioned adsorption regions is controlled independently of the other adsorption regions to switch between an adsorption state in which the sheet or individual sheet is adsorbed to the adsorption region and a release state in which it is released from the adsorption state. Sheet conveying device.

2. The rotating roll comprises a first adsorption region and a second adsorption region positioned on the rear side of the rotational direction of the rotating roll relative to the first adsorption region. The cutting mechanism cuts the sheet near the first adsorption region on the rotational forward side when the first adsorption region is in the adsorption state, The first adsorption region switches from the adsorption state to the release state at the first switching timing after the sheet is cut. The second adsorption region is in the adsorption state at least at the first switching timing, and switches from the adsorption state to the release state at the second switching timing after the receiving mechanism has received the front end of the individual sheet. The sheet conveying device according to claim 1.

3. The rotating roll further comprises a third adsorption region positioned in front of the first adsorption region in the rotational direction of the rotating roll, The cutting mechanism cuts the sheet between or near the boundary between the first adsorption region and the third adsorption region when at least the first adsorption region and the third adsorption region are in the adsorption state. The third adsorption region switches from the adsorption state to the release state at the third switching timing, which is earlier than the first switching timing. The sheet conveying device according to claim 2.

4. The receiving mechanism is a roll capable of adsorbing the sheet or individual sheets onto its outer surface. A sheet conveying device according to any one of claims 1 to 3.

5. A cutting step in which a sheet being conveyed along the outer surface of a rotating roll is cut to form individual sheets, The system includes a transfer step of transferring the front end of the individual sheet from the rotating roll to a mechanism different from the rotating roll, The individual sheet includes a first region and a second region in order from the front end to the rear in the transport direction, In the cutting step, at least the first region is adsorbed to the outer peripheral surface, In the aforementioned handover step, The first region is free from the outer circumferential surface, The second region is attracted to the outer circumferential surface before the mechanism receives the front end, and is released from the outer circumferential surface after the mechanism receives the front end. Sheet transport method.

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