Film spraying head sealing device for film spraying machine and die lip closing method applying film spraying head sealing device

Abstract

The invention belongs to the field of film spraying equipment, in particular to a film spraying head sealing device for a film spraying machine and a die lip closing method applying the film sprayinghead sealing device. The device comprises a sealing plate and a supporting frame, wherein the plate surface is attached to a die lip, and the supporting frame is used for applying force to the sealingplate from bottom to top, so that the rapid sealing operation of the die lip of a film spraying head of the film spraying machine is achieved, and the generation of coke in a die cavity of the film spraying head is avoided. According to the die lip closing method, the opening sealing operation efficiency of the die lip of the film spraying head of the film spraying machine can be improved. The die lip closing method comprises the following steps of 1, closing a film spraying machine; 2, adjusting the support frame; 3, starting the film spraying machine; and 4, cooling and solidifying fused objects to be overflowed. In the step 1, the top end face of the sealing plate is attached to the die lip of the spraying film head; in the step 2, the supporting frame is adjusted until the sealing plate abuts against the die lip of the film spraying head from bottom to top; and in the step 3, when the die lip of the film spraying head is discharged and melt starts to extrude the gap between the opening plate and the die lip of the film spraying head, the film spraying machine is closed.

Description

technical field [0001] The invention belongs to the field of laminating equipment, and in particular relates to a laminating head sealing device for a laminating machine and a die lip sealing method using the device. Background technique [0002] Extrusion casting compound machine, commonly known as laminating machine in the industry, has the advantages of high automation, easy operation, high production speed, uniform coating thickness, high adhesion fastness, smooth coiling, environmental protection and pollution-free, and labor-saving It has developed maturely in Europe and the United States, and has gradually become popular in China in recent years. It is an inevitable trend to replace dry lamination and hot melt adhesive coating lamination. The working principle of the laminating machine is: after the plastic particles are plasticized by high temperature and screw, they are extruded in a molten state from the die lip of the laminating head in a linear shape, and after s...

AI Technical Summary

Problems solved by technology

Since there is no sealing device for the lip of the coating head of the laminating machine, the air will even directly enter the cavity of the coating head through the above-mentioned lip, which will cause the entire section of burnt material from the lip to the cavity of the coating head

Once the coke material is produced in the mold cavity of the coating head, the coating head must be removed to clean the entire section of coke material in the mold cavity when the next production is started. Subsequent production process, which brings great work troubles to on-site maintenance personnel

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