Coating process and apparatus of coating machine

Abstract

The invention relates to the technical field of coating machine, in particular to a coating process of the coating machine and a device thereof. The device comprises a transmission roller, a transferring roller and an edge folding device; the transmission roller and the transferring roller are correspondingly arranged; two sides of the transmission roller are provided with gap parts; the edge folding device can make two sides of a laser film bend towards the gap parts; when two sides of the laser film bend, the sides can not be contacted with the transferring roller, thereby coating no paint and ensuring that the two sides and the middle part of the laser film have thickness difference; the laser film has thickness difference, when a roller wheel extrudes the laser film, as each side of the laser film is thinner than the middle part of the laser film, pressure is transferred to the sides, thereby causing no folded veins in the middle part of the laser film; and the device has the advantages that the device can not influence the whole quality of the laser film, can greatly reduce the occurrence of the folded veins and improve production efficiency and product quality.

Description

Technical field: [0001] The invention relates to the technical field of coaters, in particular to a coater coating process and device. Background technique: [0002] In the process of processing the laser film, there is a process of coating, that is, the paint in the coating tank is coated on the laser film through the transfer roller. Generally, a transmission roller is correspondingly arranged above the transfer roller, and the laser film is coated. When applying paint, the surface of the laser film will have wrinkles due to the extrusion of the transmission roller and other rollers, which will affect the quality of the laser film. If wrinkles appear in a small area on both sides of the laser film, the effect will not be great, because the coating Finally, a part of both sides of the laser film will be cut off, but if wrinkles appear in the middle range of the laser film, the quality of the laser film will be greatly affected, which will cause huge economic losses. At pre...

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Problems solved by technology

[0002] In the process of processing the laser film, there is a process of coating, that is, the paint in the coating tank is coated on the laser film through the transfer roller. Generally, a transmission roller is correspondingly arranged above the transfer roller, and the laser film is coated. When applying paint, the surface of the laser film will have wrinkles due to the extrusion of the transmission roller and other rollers, which will affect the quality of the laser film. If wrinkles appear in a small area on both sides of the laser film, the effect will not be great, because the coating Finally, a part of both sides of the laser film will be cut off, but if wrinkles appear in the middle range of the laser film, the quality of the laser film will be greatly affected, which will cause huge economic losses

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