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Intermittent coating device

A coating device and coating technology, which is applied to the surface coating liquid device, coating, etc., can solve the problems of coating thickness influence, difficulty in coating liquid coating, and difficulty in improving productivity

Inactive Publication Date: 2015-12-09
FUJI KIKAI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that if the conveying speed of the above-mentioned substrate is not controlled below a certain value, it will be difficult to apply the coating liquid to the desired part of the substrate accurately, and it will be difficult to improve productivity.
In addition, the distance between the coating nozzle and the surface to be coated has a great influence on the coating thickness
However, the above-mentioned pattern coating method is structurally difficult to form a coating agent layer having a film thickness of 10 μm or less on a surface to be coated with a three-dimensional pattern such as a porous protective film formed on a negative electrode plate for a battery.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0043] figure 1 as well as figure 2 The first embodiment of the intermittent coating device according to the present invention is shown in , which is a device for intermittently coating a coating agent on a substrate 1 constituting a negative electrode plate of a battery such as a lithium ion secondary battery. . Specifically, the intermittent coating device continuously arranges battery-use coatings 2 having a thickness of about 80 μm at predetermined intervals on a sheet-shaped current collector 2 composed of a copper sheet having a thickness of approximately 10 μm at a predetermined speed. When the substrate 1 made of the active material layer 3 is conveyed, a coating agent consisting of a ceramic paste is intermittently applied to the surface of the substrate 1 and dried to form a film having a film thickness of 10 μm or less, for example, The thin porous protective film 4 covering the surface of the battery active material layer 3 has a thickness of 2 μm±1 μm.

[0044...

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Abstract

PROBLEM TO BE SOLVED: To provide an intermittent coating apparatus that can uniformly and appropriately apply a coating agent to a required position of a base material conveyed at high speed. SOLUTION: There is provided the intermittent coating apparatus which intermittently applies the coating agent to the base material by intermittently contacting coating rolls 11, 12 with the base material 1 conveyed along a conveying path. The apparatus includes: guide rolls 6, 7 arranged at positions adjacent to the plurality of coating rolls 11, 12 disposed along the conveying path of the base material 1, which regulates a conveying direction of the base material 1; and a driving mechanism 18 for individually driving the guide rolls 6, 7 and contacting and separating the base material 1 to and from the coating rolls 11, 12 to apply the coating agent to different regions of the base material 1.

Description

technical field [0001] The present invention relates to an intermittent coating device for intermittently applying a coating agent to a substrate conveyed along a conveyance path by intermittently contacting the substrate with a coating roller. Background technique [0002] As shown in Japanese Patent Laid-Open Publication No. 2009-90274 (Patent Document 1), in the conventional intermittent coating method for intermittently coating a coating liquid on a continuously conveyed belt-shaped support (base material), The mechanism causes the lower surface of the above-mentioned support body to come into contact with the peripheral surface of the cylinder (coating roller) for coating with the above-mentioned coating liquid from the coating liquid accumulation part based on the rotation, so that the lower surface of the above-mentioned support body A coated portion coated with the coating liquid and a non-coated portion not coated with the coating liquid are formed on the surface. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C1/08B05C11/10B05C13/00H01M4/04H01M4/139
CPCY02E60/122Y02E60/10
Inventor 森川亮三浦秀宣中岛裕之安田芳章矶崎彻
Owner FUJI KIKAI IND
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