Injection molding process of salad plate

Abstract

The invention discloses an injection molding process of a salad plate, and belongs to the technical field of processing of plastic products. According to the key points of the technical scheme, the injection molding process comprises the following steps that S1, pretreatment is carried out, specifically, plastic particles to be subjected to injection molding are put into a dryer and dried with hotair; S2, melting plasticizing is carried out, specifically, the dried plastic particles are heated in a storage cylinder of an injection molding machine; S3, injection molding is carried out, specifically, plastic under a molten condition is injected into a mold core of a molding mold, the mold core comprises an outer core of a molding disk body and a central core of a molding center disk, and the central core is arranged in the outer core; S4, the central core is heated, specifically, circulating hot water is injected into the central core through a mold temperature machine, and the temperature of the central core is controlled at 95 DEG C-100 DEG C; S5, the outer core is cooled, specifically, the outer core is cooled while the central core is heated, so that the temperature of the moldcore of the mold is kept constant; and S6, demolding is carried out, specifically, after cooling is finished, a product is taken out from the injection molding mold. The injection molding process of the salad plate has the advantages of stable molding and high yield.

Description

technical field [0001] The invention belongs to the technical field of plastic product processing, and more specifically relates to an injection molding process of a salad plate. Background technique [0002] Salad plate refers to a non-toxic and harmless plate made of edible grade PP material. It often appears in the catering industry. It is deeply loved by people because of its light texture, beautiful appearance, low cost and strong plasticity. [0003] At present, the salad plate in the prior art, such as figure 1 As shown, it includes a disc body 1, a central disc 2 arranged in the disc body 1, and several partitions 3 for connecting the outer wall of the central disc 2 and the inner wall of the disc body 1. The partition boards 3 separate the disc body 1 into a number of accommodation cavity 4, and the disc body 1, the central disc 2 and the separator 3 are integrally injection molded. [0004] However, the above-mentioned salad plate is prone to cold material during...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned salad plate is prone to cold material during injection molding, resulting in defects such as wavy lines and poor gloss on the surface of the plate, and it is easy to stick to the mold or deform when demoulding, resulting in low yield, so there is still room for improvement

Images