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Coating gasket, coating die head and coating machine

A cloth gasket and coating technology, which is applied in the field of coating machines, can solve problems such as uneven density, poor gasket homogenization effect, and affect coating quality, so as to achieve uniform density distribution in the transverse direction, improve homogenization effect, Effect of improving coating quality

Active Publication Date: 2021-07-09
SHENZHEN MANST TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the technical problem to be solved in the present invention is to overcome the poor homogenization effect of the gasket in the coating die in the prior art, and the inhomogeneous transverse surface density everywhere when the slurry flows out, which affects the coating quality. defects, thereby providing a coating gasket, a coating die head and a coating machine

Method used

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  • Coating gasket, coating die head and coating machine
  • Coating gasket, coating die head and coating machine
  • Coating gasket, coating die head and coating machine

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses a coating gasket, a coating die head and a coating machine. The coating die head comprises an upper die head body and a lower die head body which are matched with each other, an extrusion gap is formed between the upper die head body and the lower die head body, a discharging opening is formed in one end of the extrusion gap, the coating gasket is arranged in the extrusion gap, at least one coating opening used for discharging is formed in the coating gasket, and a plurality of protrusions which are arranged at intervals are arranged on the part, between the coating opening and the discharging opening, of the coating gasket; and a plurality of layers of coating gaskets are arranged in the extrusion gap, and a plurality of protrusions which are arranged in a staggered mode are arranged on the coating gaskets. On one hand, the multiple protrusions can play a supporting role between different layers of coating gaskets, and the problem that the coating quality is affected due to the fact that all the positions of the coating gaskets in extrusion gaps are deformed due to the large pressure difference is solved; and on the other hand, the multiple protrusions can achieve the homogenization effect on the slurry flowing in a coating channel, so that the density distribution of all transverse surfaces is more uniform when the slurry is extruded out, and then the coating quality is improved.

Description

technical field [0001] The invention relates to the technical field of coating machines, in particular to a coating gasket for multi-layer coating, a coating die head and a coating machine. Background technique [0002] Extrusion coating is currently one of the main coating methods in the lithium battery industry. In the extrusion coating process, the slurry is conveyed to the slit of the coating die to be extruded, coated on the surface of the substrate, and then passed The coated product was obtained after oven drying. When the slurry is extruded from the slit, because the middle position of the slit is close to the feed inlet, the extrusion pressure will be greater than that of the two sides, resulting in a higher transverse area density in the middle than the two sides, which will affect the quality of the coated product. At present, gaskets are generally arranged in the slits to make the extrusion pressure and transverse areal density more uniform everywhere when the s...

Claims

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Application Information

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IPC IPC(8): B05C5/02
CPCB05C5/0254
Inventor 彭建林许玉山
Owner SHENZHEN MANST TECH CO LTD
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