External combined induction coil array structure for injection moulding and application thereof

Abstract

An external combined induction coil array structure, which is for injection moulding and belonging to the technical field of injection moulding product manufacture, and application thereof. The structure comprises a coil integral framework and a plurality of induction coil units, which are moveably connected with the coil integral framework through corresponding adjusting bolts. Each induction coil unit comprises electric heating coils, a pedestal, electrodes and a block pin, wherein two end of an electric heating coil arranged on front side of the pedestal are respectively connected with two electrodes arranged on the back side of the pedestal, and the block pin is arranged on the back side of the pedestal and connected with an adjusting bolt. The invention is special for injection moulding or compression moulding production of parts made from a thermoplastic or thermosetting composite material, and solves problems of an external induction coil, such as lack of versatility and incapability of local adjusting according to real production situation, in an injection moulding production. Corresponding adjustment can be carried out according to fluctuation of a mode cavity surface; and a local temperature in the coil can be adjusted.

Description

technical field [0001] The invention relates to a device and method in the technical field of injection molding product manufacturing, in particular to an external combined induction coil array structure for injection molding and its application. Background technique [0002] At present, in order to solve quality problems such as high finish, short shots and weld lines in injection molding production, cavity heating technology is usually used to solve them. Injection cavity heating technology can be roughly divided into two categories: high temperature steam heating and electric heating. Steam heating technology requires pre-arranged heating pipelines in the mold, and heats the mold by heat conduction through the high-temperature steam flowing through the mold. The heating process is from the inside to the outside. Its characteristics are: 1) It needs to be designed and arranged in advance Heating pipeline; 2) The heating and cooling time is extended, because the cooling is...

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Problems solved by technology

[0007] The present invention aims at the above-mentioned deficiencies in the prior art, and provides an external combined induction coil array structure for injection molding and its application, especially for injection molding or compression molding production of parts made of thermoplastic or thermosetting composite materials , to solve the problem that the external induction coil lacks versatility and cannot be adjusted locally according to the actual production situation in injection molding production. It can be adjusted according to the surface fluctuation of the mold cavity, and the local temperature within the coil range can be adjusted.

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