Title:
WINDING AND UNWINDING SYSTEM, CONTROL METHOD, AND PREPARATION DEVICE FOR BATTERY ELECTRODE SHEET
Document Type and Number:
WIPO Patent Application WO/2024/055678
Kind Code:
A1
Abstract:
A winding and unwinding system (100), comprising at least two winding rollers (120), a roll changing device (130), a sensing device (150), a measuring device (140), and a controller. The roll changing device (130) can drive the at least two winding rollers (120) to sequentially move to a set position, and the winding roller (120) located at the set position can wind a strip material; the sensing device (150) sends an in-place signal when the winding roller (120) located at the set position rotates by one circle; the measuring device (140) is used for measuring the running length of the strip material; when receiving the in-place signal, the controller determines, according to the running length measured by the measuring device (140), the winding diameter of the winding roller (120) located at the set position; when the winding diameter reaches a preset threshold, the controller controls the roll changing device (130) to drive the other winding roller (120) to move to the set position and come into contact with the strip material, so that the strip material is wound to the other winding roller (120). Thus, an ultrasonic ranging sensor is removed, the mode of measuring the winding diameter is independent of the thickness of the strip material, and the measuring accuracy is high. Further comprised are a control method for the winding and unwinding system (100), and a preparation device for a battery electrode sheet.
Inventors:
LUO YU (CN)
WU KUN (CN)
XIAO QIUHUA (CN)
WU KUN (CN)
XIAO QIUHUA (CN)
Application Number:
PCT/CN2023/102736
Publication Date:
March 21, 2024
Filing Date:
June 27, 2023
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
B65H18/02; B65H19/30
Foreign References:
| CN115818304A | 2023-03-21 | |||
| CN106800197A | 2017-06-06 | |||
| DE102019211090A1 | 2021-01-28 | |||
| CN101301971A | 2008-11-12 | |||
| CN104210897A | 2014-12-17 | |||
| CN106926580A | 2017-07-07 | |||
| CN110790056A | 2020-02-14 | |||
| CN113526218A | 2021-10-22 | |||
| CN207375435U | 2018-05-18 | |||
| CN216889285U | 2022-07-05 | |||
| CN111824865A | 2020-10-27 | |||
| EP1500729A1 | 2005-01-26 | |||
| JPH10279187A | 1998-10-20 |
Attorney, Agent or Firm:
BEIJING HAN KUN LAW OFFICES (CN)
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