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Stopcock for injection mould

A technology of injection mold and water stopper, which is applied in the direction of pipes/pipe joints/pipes, mechanical equipment, pipe components, etc., can solve the problems of easy water leakage, low use efficiency, difficult to change, etc., and achieves improved efficiency and high use efficiency. , the effect of simple installation

Inactive Publication Date: 2014-07-02
KUNSHAN DAJIU ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Stopcock for injection mould
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  • Stopcock for injection mould

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Embodiment Construction

[0019] Hereinafter, the present invention will be specifically introduced with reference to the drawings and specific embodiments.

[0020] Combine figure 2 with image 3 , The water stop plug 6 for an injection mold of the present invention includes a brass tube 1 in which a trapezoidal aluminum fastening bolt 3 is provided, and the fastening bolt 3 is connected by 5 trapezoids 4 rubber rings 2 are evenly arranged outside the casing 1, the thickness of the rubber rings 2 is 0.5mm, and each rubber ring 2 is facing the lower bottom of each trapezoid in the fastening bolt 3. On the edge, when the high temperature expands, the expansion of the lower bottom can drive the further expansion of the rubber ring 2. The fastening bolt 3 is provided with an expansion screw 4, and the expansion screw 4 is provided with a groove 5 made of rubber material. The top of the groove 5 is provided with a rectangular opening (not shown in the figure), which can be used with a water stop plug instal...

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Abstract

The invention discloses a stopcock for an injection mould. The stopcock comprises a sleeve made of a copper material, wherein a trapezoidal fastening bolt made of an aluminum material is arranged in the sleeve, the fastening bolt is formed by connecting a plurality of trapezoids, a plurality of rubber rings are uniformly arranged outside the sleeve, each rubber ring is aligned to the edge of the lower bottom of each trapezoid in the fastening bolt, an expansion bolt is arranged inside the fastening bolt, and a flexible groove is arranged inside the expansion bolt. The stopcock has the advantages that the expansion effect is remarkable at high temperature, and water and vapor can be efficiently blocked; the stopcock disclosed by the invention can be placed on any position of conveying water, is simple in installation, high in use efficiency, good in effect, and convenient, simple and efficient in mounting and dismounting.

Description

Technical field [0001] The invention relates to the field of injection mold parts, in particular to a new type of water stopper for injection molds. Background technique [0002] The stopcock is a metal part that is used in plastic molds or any waterway cooling or heating system to match the required flow direction to play a role in filling. The scope of application of the water stopper: plastic mold, water channel cooling system, channel water heating and heat conduction system. [0003] In the injection molding process of plastic parts, it is generally necessary to design many cooling or heating water circuits. The traditional injection mold water stopper is sealed by the expansion of rubber. When the water temperature is high, water leakage is prone to occur, and the traditional injection mold uses a stopper. The water hydrant needs to be designed with a counterbore for carrying water, and then the water stop is placed in it. Usually the water stop is placed in a fixed position...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/17
CPCF16L55/134B29C45/2608B29C2045/1718
Inventor 王枫
Owner KUNSHAN DAJIU ELECTRONICS
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