Predeformation design method of plastic injection product

Abstract

The invention belongs to the field of mould manufacturing, and discloses a predeformation design method of a plastic injection product. The method comprises the steps: 1) inputting used parameters while mold flow analysis is carried out on a mold flow analysis software, and carrying out injection molding flow simulation to obtain deformation data; 2) copying the deformation data of the product; 3) settling the deformation data, and calculating the predeformation of the product; 4) predeforming a 3D product based on a primary specification, so as to obtain a simulated 3D product; 5) designing a module for producing a product according to the predeformed simulated 3D product; and 6) manufacturing a mould and using the manufactured mould to carry out injection molding production, so as to obtain a finished product. According to the method, the tedious processes of repeatedly testing the moulds, modifying products, and repeatedly modifying the moulds over and over can be prevented, the materials and cost for repeatedly modifying the moulds can be saved, most importantly, the developing efficiency can be improved, and the developing period can be shortened.

Description

technical field [0001] The invention relates to the field of mold manufacturing, in particular to a pre-deformation design method for injection molded products. Background technique [0002] Deformation of plastic products after injection molding is an inevitable phenomenon. To obtain the size and shape of the deformed product to meet the requirements of the drawing, it is necessary to carry out pre-deformation design on the mold. [0003] For the car engine cooling water tank (welded by the upper and lower covers), because it is necessary to ensure that no matter how hot or cold the car is, how bumpy the environment is, there will be no leakage at all, which makes the car engine cool. The size requirements of the upper and lower covers of the water tank are very strict, especially the flatness and contour of the product mouth. In the past, the product was modified through repeated mold trials, and there was a problem of heavy workload and long time. [0004] The patent wi...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the existing injection molding products, especially the products with high requirements on the flatness of the upper and lower covers of the automobile engine cooling water tank, it is necessary to modify the product through continuous and repeated mold trials during the production process, which has a large workload, low efficiency, and To solve the problems of high cost and long development cycle, the present invention provides a method for pre-deformation design of injection molded products

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