Injection mold with limiting structure

Abstract

The invention discloses an injection mold with a limiting structure. The injection mold with the limiting structure comprises a lower bottom plate; straight rods are fixedly welded to the four cornersof the top of the lower bottom plate correspondingly; limiting blocks are fixedly welded to the tops of the straight rods; reset springs are fixedly welded to the bottoms of the limiting blocks; an upper baffle is connected to the straight rods in a sliding mode; the other ends of the reset springs are welded and fixed to the upper baffle; the reset springs are arranged on the straight rods in asleeving mode; upper molds are fixed to the bottom of the upper baffle; a supporting block is welded and fixed to the upper portion of the lower bottom plate; a supporting plate is fixed to the upperportion of the supporting block through bolts; a fixing plate is arranged above the supporting plate; a lower mold is connected to the fixing plate; a sprue bush is connected to the central position of the upper baffle; a positioning ring is connected to the top end of the sprue bush; and pouring cavities are formed in the upper molds. The injection mold with the limiting structure has the advantages that the triangular sliding block slides outwards by rotating a knob, so that the upper molds and the fixing plate are limited, the mold is prevented from displacing, and the quality of a producedinjection molding part is kept.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an injection mold with a position-limiting structure. Background technique [0002] Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding, also known as injection molding, is a molding method of injection and molding. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted plastic into the mold cavity under high pressure from the injection molding machine, and after cooling and solidifying, a molded product is obtained. The advantages of the injection molding method are fast production speed, high efficiency, automatic operation, various designs and colors, simple to complex shapes, large to small sizes, accurate product sizes, easy replacement of product...

AI Technical Summary

Problems solved by technology

[0003] Most of the current injection molds are not equipped with limit devices, and some injection molds with limit devices are relatively simple in structure and cannot meet the requirements of more and more refined production. Pouring into between the upper mold and the lower mold will cause impact on the upper mold and the lower mold. At the same time, the high-temperature raw material will also heat the mold. Due to thermal expansion and contraction, displacement may occur between the upper mold and the lower mold. , thus affecting the quality of injection molded parts, greatly increasing the failure rate and increasing the production cost

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