Injection mould of locomotive toy series

Abstract

The invention discloses an injection mould of locomotive toy series, and particularly relates to the field of toy injection moulds. The injection mould includes an upper mould, a middle cooling positioning frame and a lower mould, wherein the upper mould and the lower mould are correspondingly and movably arranged at the top and the bottom of the middle cooling positioning frame, steps are correspondingly arranged on the edge of the bottom of the upper mould and the edge of the top of the lower mould, a water inlet pipe is arranged on one sides of the steps, a water outlet pipe is arranged onthe other sides of the steps, and a mould groove is formed in the surface of the bottom of the upper mould. The injection mould of the locomotive toy series is arranged in the middle cooling positioning frame by using a cooling water circulating water supply system, in use, circulating water after cooling in an internal cooling passage is extracted and transported into the upper mould and the lower mould through a circulating pump, an injection molded part in the mould groove is cooled, the problem that in the prior art, water cooled systems need to be reconnected after the upper mould and thelower mould are replaced due to water cooled circulation systems internally arranged in the upper mould and the lower mould is solved, and the cost that the water cooled systems are both arranged ineach upper mould and each lower mould is also saved.

Description

Technical field [0001] The present invention relates to the technical field of toy injection molds, more specifically, the present invention relates to an injection mold of locomotive toy series. Background technique [0002] The injection molding process refers to the process of making a semi-finished part of a certain shape by pressing, injecting, cooling, and detaching molten raw materials; the existing locomotive toy series first inject the plastic melt through the injection hole during the injection molding process. After the injection is completed, it needs to be cooled by the water cooling system in the upper and lower molds to facilitate post-molding and demolding by the ejector rod. [0003] However, the water-cooling system in the upper and lower molds in the prior art requires an external water-cooled water tank when in use, resulting in a large volume of the entire equipment and complicated water pipe connection, which will affect the clamping of the upper and lower mol...

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Problems solved by technology

[0003] However, the water-cooling system in the upper and lower molds in the prior art needs to be installed with an external water-cooled water tank during use, resulting in a large volume of the entire equipment, and complicated water pipe connections, which will affect the clamping of the upper and lower molds, and when making unreasonable products, The mold needs to be replaced. At this time, the water supply system needs to be disassembled and then installed on the replaced mold, and the replaced mold must also be equipped with connectors, etc., which not only increases the cost of preparation, but also causes inconvenience in use and replacement.

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