Winding device and manufacturing method of wound body

Patent metadata

Field	Value
Publication number	US-11873189-B2
Application number	US-202117457536-A
Country	US
Kind code	B2
Filing date	Dec 3, 2021
Priority date	Feb 16, 2021
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

According to an embodiment, a winding device includes a core, a transfer path, a pinch roller, a detection unit, a driving unit, and a control unit. A band body is wound around the core. The transfer path transfers the band body to the core. The pinch roller presses the band body being transferred in the transfer path from one side of a first direction intersecting a transfer direction, and presses a partial range of the band body in a second direction intersecting both the transfer direction and the first direction. The detection unit detects an abnormally shaped portion formed in the band body in the transfer path. The control unit controls the driving unit based on a result of detection by the detection unit.

First claim

What is claimed is:

1. A winding device comprising:
a core around which a band body is wound;
a transfer path which transfers the band body to the core;
a pinch roller which presses the band body being transferred in the transfer path from one side of a first direction intersecting a transfer direction, and which presses a partial range of the band body in a second direction intersecting both the transfer direction and the first direction;
a detection unit which detects an abnormally shaped portion formed in the band body in the transfer path;
a driving unit which moves the pinch roller along the second direction; and
a control unit which controls the driving unit based on a result of detection by the detection unit.

2. The winding device according to claim 1 , wherein
the detection unit includes a first detection unit which detects the abnormally shaped portion of the band body at a position on an upstream side relative to the pinch roller in the transfer path, and
when the first detection unit has detected the abnormally shaped portion, the control unit adjusts a position of the pinch roller in the second direction in such a manner that the abnormally shaped portion detected by the first detection unit passes through a range over which the pinch roller presses.

3. The winding device according to claim 1 , wherein
the detection unit includes a second detection unit that detects the abnormally shaped portion of the band body at a position on a downstream side relative to the pinch roller in the transfer path, and
the control unit determines, based on a result of detection by the second detection unit regarding the abnormally shaped portion, an appropriateness of a real-time position of the pinch roller in the second direction.

4. The winding device according to claim 3 , wherein the control unit adjusts, based on a result of determination on an appropriateness of the real-time position of the pinch roller, the position of the pinch roller in the second direction at a time later than a time point of the determination.

5. The winding device according to claim 1 , wherein the transfer path transfers the band body in such a manner that a thickness direction of the band body matches the first direction, and a width direction of the band body matches the second direction.

Assignees

• Toshiba Kk

Inventors

• Shishido Ryunosuke

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• B65H81/06 Primary

  Covering or wrapping elongated cores · CPC title

• B65H20/02

  by friction roller · CPC title

• H01M10/0431

  Cells with wound or folded electrodes (H01M10/045 takes precedence) · CPC title

• B65H2404/152

  Arrangement of roller on a movable frame · CPC title