Multicolor injection mould device

Abstract

The embodiment of the invention discloses a multicolor injection mould device which comprises a middle rotating mould and a plurality of lateral moulds, wherein the middle rotating mould is a cylinder with a plurality of side faces; one of the lateral moulds is a fixed mould, and the others are moving moulds which can translate relative to the fixed mould; the middle rotating mould is a moving mould which can translate and rotate relative to the lateral mould as the fixed mould; and the lateral moulds are arranged around the middle rotating mould and respectively form mould cavities together with the corresponding side faces of the middle rotating mould. The multicolor injection mould device of the embodiment of the invention can be used for finishing the moulding formation of dual-color moulding parts and even multicolor moulding parts by adopting one set of mould, which greatly improves the stress state of an injection moulding machine and lowers the requirement of the injection mould on the mould clamping force of the injection moulding machine.

Description

Technical field [0001] The invention relates to a mold device, in particular to a multi-color injection mold device. Background technique [0002] The current injection mold system, when producing large plastic parts such as TV cases, can only use one kind of plastic material to produce products with one color, and the product has a single color. [0003] The basic principle of the traditional two-color injection mold system is that the two barrels of the two-shot molding machine are matched with two sets of molds in order to form a two-color product twice. Such as figure 1 As shown, such a two-color injection mold system generally includes two pairs of forming mold male mold 90 and female mold 91, male mold 92 and female mold 93, and a first barrel 94 and a second barrel 95 that are arranged in parallel with each other. The female molds 91 and 93 are fixed on the fixed plate 96 and are fixed molds. The male molds 90 and 92 are fixed on the rotary disc 97 and are movable molds. ...

AI Technical Summary

Problems solved by technology

[0009] This two-color injection molding system has obvious defects, that is, due to the unbalanced force and the limitation of the tonnage of the injection molding machine, it can only produce small plastic parts such as mobile phone casings, and cannot produce large plastic parts such as TV casings.

[0010] Therefore, in the prior art, the method used to produce multi-color TV casings is to use multiple sets of molds to form plastic parts of different colors, and then use bonding, riveting, etc. to fix them together, but this method obviously There are also many defects, such as complex process, numerous procedures, and it may cause the casing product to be not bonded firmly, etc.

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