A gate valve spool mold and the runner plate of the mold

Abstract

The invention relates to a gate valve core mold and a runner plate of the mold, including a base, two hydraulic telescopic cylinders are arranged on the top of the base, and the free ends of the two hydraulic telescopic cylinders are fixedly connected with equipment middle seats. When the valve core is processed, the anti-freezing system transports the heat transfer oil from the supply pipe to the first spiral hollow conduit, and the heat transfer oil enters the connecting hollow pipe from the first spiral hollow conduit, and then enters the second spiral hollow conduit from the connecting hollow pipe. In this way, the heat-conducting oil can heat the excess injection slurry retained in the injection molding in the square plastic storage cavity, avoiding the occurrence of dead material during the molding process, and can save operating time and improve processing efficiency. Compared with the original During the operation, the step of processing the dead material between each molding operation is omitted, which has high safety, less time for manual contact with the hot plate, avoids the problem of overflowing glue in the secondary mold clamping, and saves the waste of products in the production process The problem.

Description

technical field [0001] The invention relates to the technical field of gate valve processing molds, in particular to a gate valve core mold and a flow channel plate of the mold. Background technique [0002] It is an opening and closing gate. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate. Usually, the sealing surface will be surfacing with metal materials to increase wear resistance, such as surfacing 1Cr13, STL6, stainless steel, etc. The gate has a rigid gate and an elastic gate. According to the different gates, the gate valve is divided into a rigid gate valve and an elastic gate valve. [0003] When the gate valve spool is produced, a metal block is first placed in the cavity of the mold core, then the upper and lower mold plates are clamped up and down, and ...

AI Technical Summary

Problems solved by technology

[0003] When the gate valve spool is produced, a metal block is first placed in the mold core cavity, and then the upper and lower templates are clamped up and down, and finally injection molding is performed, so that the metal block is wrapped with a layer of rubber sleeve, and the production is completed in this way. , and in this process, the injection material enters the mold core cavity from the injection port, the injection nozzle closes the feeding, and the cooling time of the finished product is generally more than ten minutes. During the cooling molding process, the cold pressing temperature will block the flow channel of the injection port , the injection molding slurry is formed in the runner, and there is a problem of dead material. During the secondary processing operation, the molded plastic in the inner runner needs to be cleaned up, which wastes time and affects the continuous operation, and the cleaning process is easy to cause secondary sealing If it is not strict, it is easy to have the problem of overflowing glue, and the dead material will cause the waste of raw materials.

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