Efficient blocking stopcock for plastic injection mold

Abstract

The invention discloses an efficient blocking stopcock for a plastic injection mold. The efficient blocking stopcock comprises a copper sleeve. A trapezoidal aluminum fastening bolt is arranged in the sleeve. The fastening bolt is formed by connecting a plurality of trapezoids. A plurality of copper rings and a plurality of rubber rings are evenly arranged outside the sleeve. Each copper ring or each rubber ring is aligned with the lower bottom edge of the corresponding trapezoid in the fastening bolt. An expansion screw is arranged in the fastening bolt. A soft groove is formed in the expansion screw. The efficient blocking stopcock for the plastic injection mold has the advantages of being remarkable in expansion effect at a high temperature, capable of efficiently blocking water and air and being placed at any position for water transportation, easy to install, high in using efficiency and good in effect; a second-stage counterbore does not need to be formed, so the efficient blocking stopcock is convenient and easy to install and take down and efficient.

Description

technical field [0001] The invention relates to the field of injection mold parts, in particular to a water stopper for an injection mold that can be blocked efficiently. Background technique [0002] The water stopper is used in plastic molds or any waterway cooling or heating systems, and it is a metal part that plays a role in filling according to the required flow direction. The scope of use of the water stopper: plastic molds, cooling systems for water channels, heating and heat conduction systems for water channels. [0003] In the injection molding process of plastic parts, it is generally necessary to design many cooling or heating waterways, while the traditional water stoppers for injection molds are sealed by the expansion of rubber. The water plug needs to be designed with a countersunk hole for water delivery, and then the water stop plug is placed in it. Usually, the position of the water stop plug is fixed (such as figure 1 As shown), it is not easy to be fl...

AI Technical Summary

Problems solved by technology

[0003] In the injection molding process of plastic parts, it is generally necessary to design many cooling or heating waterways, while the traditional water stoppers for injection molds are sealed by the expansion of rubber. The water plug needs to be designed with a countersunk hole for water delivery, and then the water stop plug is placed in it. Usually, the position of the water stop plug is fixed (such as figure 1 shown), not easy to work around and inefficient to use

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