Coating equipment for coating sizing agent on metal base material, method and coating mechanism

Abstract

The invention discloses coating equipment for coating a sizing agent on a metal base material, a method and a coating mechanism. The coating equipment comprises an unwinding mechanism, a coating mechanism, a drying mechanism and a winding mechanism which are arranged sequentially, wherein the coating mechanism comprises a feeding box for containing the sizing agent, an anilox roller, a glue pressing roller of which the surface is covered with a rubber layer, a scraper and cylinders; the feeding box, the anilox roller and the glue pressing roller are perpendicularly arranged from bottom to top; the glue pressing roller and the anilox roller rotate in opposite directions, and certain contact pressure is formed between the glue pressing roller and the anilox roller and is used for performing film coating on the processed metal base material; the cylinders are arranged at two ends of the glue pressing roller and are used for adjusting the height of the glue pressing roller. The coating equipment for performing film coating on the metal base material solves the problem that the metal base material wrinkles or produces folds because of non-uniformity in film coating and air bubbles in the prior art. The coating equipment is simple in structure, and the method is easy to operate.

Description

technical field [0001] The invention relates to the technical field of film coating, in particular to a coating equipment, method and coating mechanism for coating slurry on a metal substrate. Background technique [0002] With the development of the electronics industry towards high-density packaging and miniaturization, materials with special functions, such as conductive materials, insulating materials, thermal conductive materials and antistatic materials used in the manufacture of high-end circuit boards, often need to be coated before use. At present, coating methods include gravure printing technology, spray printing technology, silk screen technology, extrusion molding technology and so on. [0003] At present, the widely used gravure printing technology mainly adopts high-speed gravure printing machine, and the coating mechanism uses two anilox rollers with a diameter greater than or equal to 200 mm and a hard pressure roller for coating. This type of coating mecha...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is that, aiming at the above-mentioned defects of the prior art, a coating equipment, method and coating mechanism for coating a slurry on a metal substrate are proposed, which overcomes the problems of the existing coating technology. When coating a film on a metal substrate, problems such as uneven coating, bubbles, or wrinkling of the metal foil, etc., are especially suitable for forming a thin film with a thickness of less than 20 μm on a metal substrate

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