Front mold first pumping injection mold

Abstract

The invention discloses an injection mold with a front mold drawn first, comprising: an upper fixing seat, an upper mold assembly and a lower mold assembly; The mold insert is fixed on the front mold fixing plate, and the female mold core is fixed on the female template; the lower mold assembly includes the male template and the male mold core, and the male mold core is fixed on the male template; the mold also includes a mold opening and closing device, which is used when closing the mold. The above-mentioned front mold insert, female mold core and male mold core form an injection molding cavity. When the mold is opened, the mold opening and closing device first controls the upper mold assembly and the lower mold assembly to separate from the upper fixing seat, and then controls the front mold insert and The female mold kernel is separated, and then the female mold kernel is controlled to be separated from the male mold kernel. The front mold of the invention draws the injection mold first, which can stably realize that the front mold is drawn first, and prevents the product from sticking to the front mold or being strained.

Description

technical field [0001] The invention relates to the technical field of injection mold structures, in particular to an injection mold in which the front mold is drawn first. Background technique [0002] With the development of society and prosperity, people's demand for the quality of various electronic products is getting higher and higher. In order to meet people's needs for various functions of electronic products, the product structure is becoming more and more complex. When the area of ​​the front mold is too large or the ribs are too deep and the demoulding angle is small, the product will have a greater holding force on the front mold insert. After the mold is opened, the product will stay on the front mold insert, causing the product The problem of sticking to the front mold requires manual removal of the product, and the production efficiency is low. [0003] In order to solve the problem of products sticking to the front mold, the front mold is usually used to dra...

AI Technical Summary

Problems solved by technology

Existing front-mold first-drawing injection molds generally use "soft force" such as springs or nylon shutters to overcome the friction and gravity of the mold, but the structure of the above-mentioned "soft force" is extremely unstable and will fail in mass production. As the use time increases, the stability will decrease, which will easily cause the product to be scratched or stick to the front mold. In severe cases, it will lead to mold collision, which can neither meet the needs of mold production nor meet people's needs for high quality.

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