Micro-gravure coating machine

A coating machine, gravure coating technology, applied in the direction of coatings, devices that apply liquid to surfaces, electrical components, etc.

Active Publication Date: 2013-02-13
SHENZHEN XINYUREN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the diaphragm coating device and the coating diaphragm flattening method disclosed in Chinese patent CN102582209 use a vacuum flattening box to flatten both sides of the diaphragm. This method simply considers that the diaphragm is flattened by vacuum. The box will flatten both sides without forming a variety of reasons from the diaphragm, comprehensively consider the comprehensive solution of the diaphragm, and this vacuum flattening box due to the existence of the inclined raised ribs at the bottom, in the process of flattening the diaphragm secondary folds in the diaphragm

Method used

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Embodiment Construction

[0032] See figure 1 , figure 1What is disclosed is a dimple coating machine, including an unwinding device 10, a dimple coating head 20, a baking and cooling box 30, and a rewinding device 40. The diaphragm 6 comes out of the unwinding device 10 and is coated with dimples The cloth head 20 is coated with slurry, then baked and cooled, and enters the winding device 40 for winding. The flattening system of the dimple coating machine includes two dimple ceramic anilox rollers located at the dimple coating head 20. The first flattening roller 2031 and the second flattening roller 2032 on the side, and more than one vacuum flattening device 60 close to the lower bottom surface on both sides of the diaphragm 6 in the baking and cooling box 30, the vacuum flattening The device 60 includes a negative pressure source device 601 connected to a negative pressure source and an adsorption member 602 provided with many adsorption holes 6021. The adsorption member 602 moves relative to t...

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Abstract

The invention discloses a micro-gravure coating machine, which comprises an unwinding device, a micro-gravure coating head, a baking-cooling box and a winding device. A diaphragm is put out of the winding device, coated with slurry by the micro-gravure coating head, then baked and cooled, and put in the winding device to wind. A flattening system of the micro-gravure coating machine comprises a first flattening roller and a second flattening roller located on two sides of a micro-gravure ceramic anilox roller of the micro-gravure coating head, and more than one vacuum flattening devices located on two sides of the diaphragm in the baking-cooling box and attached to the lower bottom surface closely. The vacuum flattening devices comprise a negative pressure source component connected with a negative pressure source and an absorption part provided with a plurality of absorption apertures. The absorption part moves against the negative pressure source component, and part of absorption apertures on the absorption part is selectively controlled by the negative pressure source component to be communicated with the outside world. The comprehensive flattening technology is adopted in the process of coating and proceeding diaphragm by the micro-gravure coating machine, so that the flattening effect of the diaphragm is enhanced.

Description

technical field [0001] The invention relates to a dimple coating machine for producing lithium battery separators. Background technique [0002] As the use of lithium batteries continues to increase, the demand for separators for lithium batteries is also increasing. Due to the mature technology of small-capacity lithium batteries, it is not a problem to directly use polyethylene (PE) and polypropylene (PP) microporous separators as lithium battery separators. However, with the gradual promotion of electric cars or electric buses, the demand for large-capacity lithium batteries is increasing, and large-capacity lithium batteries should not directly use polyethylene (PE) and polypropylene (PP) as their separators, namely Using two or three layers of polyethylene (PE) and polypropylene (PP) diaphragms, the safety performance is still not guaranteed, because polyethylene (PE) and polypropylene (PP) diaphragms have the characteristics of shrinking at high temperatures , wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C9/08B05C13/02H01M2/14
CPCY02E60/12Y02E60/10
Inventor 杨志明
Owner SHENZHEN XINYUREN TECH
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