Gating system of injection mold

Abstract

The invention discloses a gating system of an injection mold. The gating system comprises a mould main body, a main rubber passage, a main runner, a branch runner, a release bag, and a lapping bridge communicated with the branch runner and the release bag, wherein the main rubber passage is vertically built in the mould main body; the main runner, the branch runner and the release bag are built in the mould main body; one end of the main runner is communicated with the lower end of the main rubber passage; the other end of the main runner is communicated with the branch runner; one side, close to the branch runner, of the release bag is communicated with the branch runner through the lapping bridge; a rubber feeding section communicated with a part mold cavity is arranged at one side, far from the branch runner, of the release bag; and the main runner, the branch runner, the release bag and the rubber feeding section are communicated to form an S-shaped runway. According to the gating system, a rubber material flows across the main runner with a roundabout bending part, the branch runner, the release bag and the rubber feeding section, and is fed in an S-shaped path manner after impacting on and being reflected by the front inner wall of the lapping bridge and the inner wall of the release bag, thereby achieving the effects of releasing runner stress, slowing down rubber feeding, and allowing the rubber material to be able to enter the part mold cavity gently.

Description

technical field [0001] The invention belongs to the technical field of injection mold design and manufacture, and in particular relates to a gating system of an injection mold. Background technique [0002] Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to injecting heated and melted materials into a mold cavity under high pressure, and after cooling and solidifying, molded products are obtained. [0003] Although the structure of the mold may vary due to the variety and performance of the plastic, the shape and structure of the plastic product, and the type of the injection machine, the basic structure is the same. The mold is mainly composed of pouring system, temperature adjustment system, molding parts and structural parts. Among them, the pou...

AI Technical Summary

Problems solved by technology

[0005] In the existing pouring system, the main channel and the branch channel are all straight channels. The flow rate of the plastic melt during the glue feeding process is fast, and the impact force entering the mold cavity of the molded part is relatively large, which may easily cause uneven glue feeding, especially Some mold casting systems with uneven product thickness and partial product thickness far exceeding the average thickness, according to the glue feeding method of the existing casting system, it is difficult to guarantee product quality, resulting in great waste in the production process

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