PVC and PP hard board die

Abstract

The invention discloses a PVC and PP hard board die which comprises a runner internal non-seam-line die orifice elastic fine adjustment device, a lower die body and a lower flexible die lip; the lower die body is arranged on one side of the runner internal non-seam-line die orifice elastic fine adjustment device; the lower flexible die lip is arranged on one side of the lower die body; a first fixing block is arranged on one side of the lower die body; a first bolt is arranged in the lower flexible die lip; one end of the first bolt penetrates through the lower flexible die lip and extends to the interior of the lower flexible die lip; and the other end of the first bolt penetrates through the first fixing block and extends to the outer side of the first fixing block. According to the PVC and PP hard board die, the probabilities of material deposition and material hanging are low, no mechanical mark is formed in a produce d board surface, the specular quality effect can be reached, the production quality is high, the problem of the mechanical mark is solved on the basis of the original old-style die, the probability of halt due to the material deposition and the material hanging is reduced, the quality is improved and the production cost is lowered.

Description

technical field [0001] The invention relates to the field of moulds, in particular to a PVC and PP hard board mould. Background technique [0002] Existing PVC and PP hard board moulds, the mold is made up of lower die body, lower movable die lip, upper die body, adjustable choke rod and upper movable die lip. When producing plates with different thicknesses, it can be realized by replacing the upper movable die lip and the lower movable die lip with different opening sizes, and the upper movable die lip can be moved upwards to increase the opening range and the product thickness range, which can be used Adjust the choke rod to fine-tune the uneven discharge speed of the runner. Existing PVC and PP hard board molds also have certain defects during use. Because there are splicing seams on the upper and lower sides of the mold flow channel, material is easy to accumulate at the splicing seams, resulting in mechanical defects in the produced boards. traces, affecting the qual...

AI Technical Summary

Problems solved by technology

Existing PVC and PP hard board molds also have certain defects during use. Because there are splicing seams on the upper and lower sides of the mold flow channel, material is easy to accumulate at the splicing seams, resulting in mechanical defects in the produced boards. traces, affecting the quality of the board surface, and because there is too much material in the splicing seam, it must be shut down to clean up and then restarted, resulting in a short continuous start-up time and increasing production costs.

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