Mold oblique pin assembly

Abstract

The invention discloses a mold oblique pin assembly which comprises an oblique pin, wherein the upper portion of the oblique pin penetrates through an oblique pin through hole of a moving mold plate and contacts a plastic workpiece. The oblique pin is composed of an oblique pin ejector rod and an oblique pin sliding block, wherein the oblique pin ejector rod is parallel to the demolding direction, and the oblique pin sliding block is arranged at the upper end of the oblique pin ejector rod. A horizontal slide mating piece is arranged between the oblique pin sliding block and the upper end portion of the oblique pin ejector rod. According to the oblique pin, an oblique mating piece used for guiding the oblique pin sliding block to slide in the oblique direction is arranged between a bone block and the peripheral wall of an inner cavity of the oblique pin through hole of the moving mold plate. The mold oblique pin assembly has the advantages that the phenomenon that the oblique pin cracks in an operation process of a mold can be effectively avoided, and production efficiency can be effectively improved; the ejector rod can be modularized and made into a standard assembly, and therefore the effect that the ejector rod can be replaced rapidly after being broken is achieved, the repairing time of the oblique pin assembly after the oblique pin assembly is damaged is shortened, and repairing cost is lowered at the same time; and since elastic buffering materials are arranged, the mold oblique pin assembly further has a certain excessive pull prevention protection function.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a mold oblique pin assembly. Background technique [0002] At present, in the mold production, the oblique pin is used alone. Under the ejection and pull-back movement of the ejector plate of the mold, the oblique pin performs the action of ejecting the product and pulling back. Due to factors such as unbalanced ejection force and thermal expansion and contraction, the oblique pin During the pin action process, a large bending moment will be generated to break the oblique pin; at the same time, due to the precision error of the oblique pin size manufacturing, it will cause an over-tension problem in the process of pulling back the oblique pin, resulting in the oblique pin being broken and damaged. If the oblique pin breaks, it is necessary to open the entire mold for disassembly and maintenance, resulting in a waste of repair production time, which will seriously af...

AI Technical Summary

Problems solved by technology

[0002] At present, in the mold production, the oblique pin is used alone. Under the ejection and pull-back movement of the ejector plate of the mold, the oblique pin performs the action of ejecting the product and pulling back. Due to factors such as unbalanced ejection force and thermal expansion and contraction, the oblique pin During the pin action process, a large bending moment will be generated to break the oblique pin; at the same time, due to the precision error of the oblique pin size, it will cause an over-tension problem during the oblique pin pullback process, resulting in the oblique pin being broken and damaged.

If the oblique pin breaks, it is necessary to open the entire mold for disassembly and maintenance, resulting in a waste of repair production time, which will seriously affect production efficiency, and in severe cases, the entire mold will be scrapped, resulting in major property losses

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