Manufacturing method of large-sized automotive trim plastic forming mould

Abstract

The invention discloses a manufacturing method of a large-sized automotive trim plastic forming mould, which comprises the following steps that: (1) preparing a module or a panel according to a sample or a product; (2) arranging a metal piece on the module on the corresponding position, and utilizing a mould frame to fix the metal piece; (3) applying formwork wax on the surface of the module, covering the mixture of resin adhesive and reinforced powder on the surface of the shaping module to prepare a resin surface layer; finally adhering glassfabic cloth at the inner side of the surface layer to prepare a glass fiber reinforced plastic layer, fixing a snakelike steel wire at the inner side of the surface to integrate the metal piece, the surface layer, the reinforced layer and the snakelike steel wire; (4) inserting steel wire inside the mould frame, utilizing concrete to pour inside the gap of the mould frame to form an integrity. The metal piece is previously made, so the processing is easy, and the production period is short; the consumption of the metal is less, and the cost is low; the concrete is used for pouring, so the composite surface layer is integrated with the concrete layer into a whole, the integral strength of the mould is good, the mould is difficult to deform, and the size stability is good; and the processing such as formation, trimming, perforation and the like is completed synchronically, the product quality is stable, and the production efficiency is high.

Description

technical field [0001] The invention relates to the field of mold manufacturing, in particular to a manufacturing method of a large-scale automotive interior plastic molding mold. technical background [0002] After the large-scale automotive interior parts are molded through molding and other processes, subsequent processing such as edge trimming and hole opening is required. At present, the commonly used molds for molding automotive interior parts are all-metal molds, plastic (resin) molds, etc. The metal mold has stable performance and high strength, and can realize the functions of forming, trimming and opening at the same time, but its production cycle is long and the cost is high; automotive products change quickly on the basis of basic models, especially interior parts almost every two years For a remodeling, in the process of producing large-scale interior parts, due to the many states of automobile interior parts and the large amount of molds required, the cost of m...

AI Technical Summary

Problems solved by technology

The metal mold has stable performance and high strength, and can realize the functions of forming, trimming and opening at the same time, but its production cycle is long and the cost is high; automotive products change quickly on the basis of basic models, especially interior parts almost every two years For a remodeling, in the process of producing large-scale interior parts, due to the many states of automobile interior parts and the large amount of molds required, the cost of making metal molds is increased and the efficiency is low; the plastic resin mold made of glass fiber reinforced plastics takes a long time to cure. The performance and dimensional stability are not good, the strength is not enough, and the functions of forming, edge trimming and hole opening cannot be realized at the same time. Subsequent processing procedures such as edge trimming and hole opening are required, and the process is complicated and the production efficiency is low.

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