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Gravure roller coating defoaming device

A technology of defoaming device and gravure roller, which is applied in the direction of device and coating for coating liquid on the surface, can solve the problems of occupying space, high operating cost, inconvenient use, etc., and achieve the effect of avoiding waste and avoiding waiting time.

Active Publication Date: 2021-11-30
SINOMA LITHIUM BATTERY SEPARATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is cumbersome, inconvenient to use, takes up space, and has high operating costs

Method used

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  • Gravure roller coating defoaming device
  • Gravure roller coating defoaming device
  • Gravure roller coating defoaming device

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0023] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected ...

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Abstract

The invention discloses a gravure roller coating defoaming device which comprises a material box, the middle of the interior of the material box is filled with slurry, one side of the material box is provided with an inner groove, the inner groove is used for installing a gravure roller, an upper scraper is installed above the inner groove, and a lower scraper is installed below the inner groove. The lower scraper comprises an inner side lower scraper body and an outer side lower scraper body, a closed space gap is reserved between the inner side lower scraper body and the outer side lower scraper body, vacuum sealing plates are arranged at the two ends of the closed space gap, and the closed space is vacuumized by extracting air through a vacuum fan. By adopting the double-layer lower scraper and the lower scraper interlayer vacuumizing technology, the problem of serious foam of returned slurry in the coating process of the gravure roller is solved, an additional defoaming tank is not needed, and the waiting time for standing and defoaming of the slurry for an overlong time is avoided; and moreover, the slurry can be recycled, and waste of the slurry due to the foam is avoided.

Description

technical field [0001] The invention relates to a gravure roller coating and defoaming device, which belongs to the field of lithium battery diaphragm production and manufacturing. Background technique [0002] In the coating operation, the coating roller is generally used for the coating operation. The principle is that the coating roller is immersed in the glue solution in the glue tank and rotates. The excess glue on the roller is removed, and then the predetermined thickness or quantity of glue on the roller is coated on the substrate. [0003] At present, during the gravure roller diaphragm coating process, the feed box will produce foam, and the foam is caused by the entrainment of air into the material box after gravure roll coating, and the air mixes with the slurry in the material box to form air bubbles. If the slurry with foam is used for coating, dense bright spots and black spots will appear after coating, resulting in problems such as low battery resistance; t...

Claims

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Application Information

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IPC IPC(8): B05C1/08B05C11/10
CPCB05C1/08B05C1/0813B05C1/0817B05C11/10Y02E60/10
Inventor 王鲁何健张森刘淑真孙源陈涛张颖智蒋保全李恩珂郑韬魏可张鹏举
Owner SINOMA LITHIUM BATTERY SEPARATOR CO LTD
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