injection mold

Abstract

The invention discloses an injection mold which comprises a fixed template, a movable template and a secondary ejection mechanism, wherein the secondary ejection mechanism comprises a push block component, an ejector plate component, a primary ejection driving device and a secondary ejection driving device; the push block component and the ejector plate component are respectively arranged on two opposite sides of the movable template and are respectively in a hollow frame structure; multiple ejection pieces are arranged on the ejector plate component; the ejection pieces penetrate through the movable template and are movably inserted into the push block component; a guide linkage mechanism which drives the push block component and the ejector plate component to be linked is arranged between the push block component and the ejector plate component; the primary ejection driving device is in driving connection with the push block component; the secondary ejection driving device is in the driving connection with the ejector plate component. Therefore, the structure of a secondary ejection mechanism is greatly simplified, and the weight of the secondary ejection mechanism is reduced, so that the secondary ejection mechanism is stable and durable, the product quality and the production efficiency are improved, and the manufacturing cost of the injection mold is reduced.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an injection mold with a secondary ejection mechanism. Background technique [0002] The secondary ejection mechanism of an injection mold usually includes an ejector plate and an ejector base plate. The ejector plate and the ejector base plate are respectively integrally processed from solid metal plates. The weight of the ejector plate and the ejector base account for the total weight of the entire secondary ejection mechanism the vast majority. Therefore, in the process of injection mold opening and ejection, the secondary ejection mechanism needs to overcome huge resistance, especially some large parts (for example, flat panel TV frame) need to use pusher plate when demolding, this kind of The ejection structure once again increases the load of the secondary ejection mechanism, which is likely to cause difficulty in demoulding and jamming in the actual production pro...

AI Technical Summary

Problems solved by technology

Therefore, in the process of injection mold opening and ejection, the secondary ejection mechanism needs to overcome huge resistance, especially some large parts (for example, flat panel TV frame) need to use pusher plate when demolding, this kind of The ejection structure once again increases the load of the secondary ejection mechanism, which is likely to cause difficulty in demoulding and jamming in the actual production process, thereby affecting the quality of the part and reducing production efficiency

In addition, for some deep bone parts, the structure of the secondary ejection mechanism is complicated, and the mold used with it has a large thickness, complex structure, and difficult installation. The entire set of molds requires a large amount of processing and high production costs.

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