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Precision control method of height of coating die head

A precise control and coating technology, applied in the direction of devices and coatings that apply liquid to the surface, which can solve the problems of height position deviation and uneven thickness of the coating film.

Inactive Publication Date: 2018-10-09
苏州威格半导体材料有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In the extrusion flat coating process: sample conveying, die head down, coating (coating completed), die head up, coating die head is driven during the coating process, coating die head mechanical adjustment also causes High position deviation, working for a long time, will cause greater cumulative deviation, resulting in uneven coating film thickness

Method used

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  • Precision control method of height of coating die head
  • Precision control method of height of coating die head

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] In order to achieve the purpose of the present invention, a kind of embodiment of the present invention is: as figure 1 As shown, it is a structural schematic diagram of the height adjustment system. Both sides of the coating die head 1 are fixed on the die head height adjustment mechanism 5. A marble reference platform 6 is provided.

[0043] Such as Figure 4 Shown, a kind of accurate control method of coating die height, comprises the following steps: ...

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Abstract

The invention provides a precision control method of the height of a coating die head. The method comprises the following steps: directly measuring the distance between the coating die head and a coating plane through a distance measuring instrument, and accomplishing the real-time adjustment of the coating die head through closed-loop control. The method can greatly reduce the influence on coating films caused by change of the height position of the coating die head, so that high quality films with uniform thicknesses are obtained.

Description

technical field [0001] The invention relates to a flat plate precision extrusion coating technology, in particular to a method for precisely controlling the height of a coating die head. Background technique [0002] Based on the highly controllable characteristics of the extrusion coating method on the thickness and thickness uniformity of the coating film, the extrusion coating method is widely used in new thin-film solar cells, new display materials, optical functional films, environmental protection permeable films, etc. new industry sectors. With the requirements of the physical and chemical characteristics of the new industry functional film and the high performance of the film, the thickness and thickness uniformity of the coated film need a higher degree of control. [0003] Generally speaking, the quality (thickness and uniformity) of the coated film is affected by the coating equipment and coating conditions. In addition to the influence of the precision of the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C11/02B05C11/10
CPCB05C11/02B05C11/1018
Inventor 冯宗宝欧阳俊波张海銮程园园章婷刘德昂曲亚东钱磊张德龙
Owner 苏州威格半导体材料有限公司
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