Double side coating system
A double-sided coating and coating device technology, applied to the surface coating liquid device, coating, etc., can solve the problems of low production efficiency, difficult cleaning, unavailable roll coater, etc.
Active Publication Date: 2017-11-28
湖北新成萃腾新材料有限公司
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Problems solved by technology
[0002] The existing coating system is usually single-sided coating. When double-sided coating is required, it needs to be rewound and then re-rolled for coating. The existing problem is that it is easy to cause uneven internal stress on both sides of the coating layer. and low production efficiency
[0004] 1. The scraper coating machine is easy to scrape the knife marks, the slurry is easy to accumulate and difficult to clean when the scraper comes out, and the cost of the scraper is very high
[0005] 2. The roller coater cannot get a thicker coating amount and better smoothness and glossy surface
It adopts a scheme of surface line speed difference for coating, but this scheme is only suitable for thinner coating conditions, such as coatings below 0.2mm, and has poor fluidity and strong adhesion for slurry , high solid content, it is not suitable for working conditions that require a thick coating surface
Method used
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[0033] like Figure 1~6 Among them, a double-sided coating system, unwinding device, first coating device 3, first drying box 4, second coating device 3', second drying box 6, pinch calendering device 8 and coil material The devices 7 are arranged sequentially;
[0034] Wherein the first coating device 3 and the second coating device 3' are used to coat both sides of the substrate 10 respectively.
[0035] In a preferred solution, the unwinding device includes a first unwinding device 1 for soft substrates and a second unwinding device 2 for hard substrates. In this system, soft base material or hard base material can be used alone, and it can also be unwound and compounded according to needs. In this example such as figure 1 As shown in , the first unwinding device 1 is located at the front end of the second unwinding device 2 . After the base material is released from the unwinding device, it passes through the first coating device 3, coats the front surface of the base ...
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The invention provides a double-sided coating system, relating to the field of coating processing. An unwinding device, a first coating device, a first drying box, a second coating device, a second drying box, a pinch calendaring device and a winding device are sequentially distributed, wherein the first coating device and the second coating device are respectively used for coating two sides of a base material. Through adopting the structure, the double-sided coating operation of the base material can be completed at a time, so that the coating thickness and the coating surface quality such as smoothness and flatness are easily controlled. The structure is especially applicable to coating working conditions that the fluidity of slurry is poor, the binding property is strong, the solid content is high and the required coating side is thick.
Description
technical field [0001] The invention relates to the field of coating processing, in particular to a double-sided coating system. Background technique [0002] The existing coating system is usually single-sided coating. When double-sided coating is required, it needs to be rewound and then re-rolled for coating. The existing problem is that it is easy to cause uneven internal stress on both sides of the coating layer. And the production efficiency is low. [0003] Existing coaters are mainly blade coaters and roll coaters, and the existing problems are: [0004] 1. The scraper coating machine is easy to scratch the knife marks, the slurry is easy to accumulate and difficult to clean when the scraper comes out, and the cost of the scraper is very high. [0005] 2. The roller coater cannot obtain a thicker coating amount and a better smoothness and glossy surface. Existing coating machines have poor slurry fluidity, strong adhesion, high solid content, and require a thick c...
Claims
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IPC IPC(8): B05C9/14B05C9/04B05C1/08
CPCB05C1/0817B05C1/083B05C9/04B05C9/14
Inventor 李巍岳新卿
Owner 湖北新成萃腾新材料有限公司