Metal injection molding mechanism and injection molding machine

Abstract

A metal injection molding mechanism comprises an injection unit, an injection unit and a mold. The injection unit comprises an injection barrel, a front machine barrel arranged at the end part of the injection barrel, a screw rod which is arranged in the injection barrel and can be driven along the rotating direction and the axial direction, and an injection head which is arranged at the end part of the front machine barrel and is inserted into the mold; the injection unit comprises a material barrel, a discharge pipe which is arranged at the end part of the material barrel and is connected with the front end of the injection barrel or the front machine barrel, and a material conveying screw rod which is arranged in the material barrel. By arranging the injection unit, the injection unit and the mold, the purpose of meeting the machining requirements of medium and large precision parts is achieved, it is guaranteed that the stable and continuous injection speed and pressure are kept under the condition that the total injection amount is increased, and the beneficial effects of being good in forming effect and easy to operate are achieved.

Description

technical field [0001] The invention belongs to the technical field of metal injection molding devices, and in particular relates to a metal injection molding mechanism and an injection molding machine. Background technique [0002] Metal injection molding technology has the advantages of forming complex-shaped metal parts at one time, low scrap rate, high production efficiency, and easy automation. It is widely used in the preparation of small and complex-shaped metal parts; metal injection molding technology can be divided into liquid state according to the form of raw materials. Metal injection molding technology, powder metallurgy injection molding technology, semi-solid metal injection molding technology. [0003] Among them, the liquid metal injection molding technology directly injects liquid metal into the mold, and obtains the final product after cooling, demoulding and surface treatment. Poor; powder metallurgy injection molding technology is a molding technology ...

AI Technical Summary

Problems solved by technology

[0005] In view of the above existing problems, the purpose of the present invention is to provide a metal injection molding mechanism, by setting the injection unit, the injection unit, and the mold, so as to meet the processing requirements of medium and large precision parts, and simultaneously inject The structural design of the unit and the injection unit ensures a stable and continuous injection speed and pressure when the total injection volume increases, and the melt injected into the mold is always kept in a good molten state, and will not appear as the processing time prolongs The problem of uneven melt has the advantages of good molding effect and simple operation

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