Novel plastic injection mould of oblique core-pulling mechanism

Abstract

The invention discloses a novel plastic injection mould of an oblique core-pulling mechanism. A support plate is arranged on a movable mould base plate, wherein a movable mould plate is arranged on the support plate; a cavity plate is arranged on the movable mould plate; a fixed module base plate is arranged on the cavity plate; a swinging rod is arranged in a cavity body and is articulated in the support plate; a pin shaft I is arranged on one side of an oblique pin; the pin shaft I is connected with the oblique pin in a long circular sliding slot of the swinging rod in a sliding manner; the swinging rod is connected with a connection rod; the other end of the connection rod is articulated with a sliding block; a guide rail rod penetrates through the sliding block; a bracket I is arranged on one side of the cavity plate and is articulated with a bent pin swinging hook; a bracket II is arranged on one side of the movable mould plate; a pin shaft II is arranged at the end of the bracket II and is located in an oblique guide slot of the bent pin swinging hook; a convex mould is arranged on the movable mould plate; an oblique rod at the upper end of the oblique pin is arranged in an oblique hole of the movable mould plate; a pushing rod is arranged under a plastic part generation tank; a pushing plate fixing plate is arranged under the pushing rod; a pushing plate is arranged in the pushing plate fixing plate. According to the novel plastic injection mould of the oblique core-pulling mechanism, the swinging rod-bent pin structure is used for obliquely pulling the core; the structure is simple and is liable to manufacture, great in pulling force and adjustable in core-pulling distance.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to a novel injection mold with an oblique core-pulling mechanism. Background technique [0002] Injection molds usually need to realize oblique core pulling, that is, when the mold is opened from the A-A parting surface, the oblique pin must be obliquely drawn out from the plastic part along the axis of the oblique hole, so as to form a plastic part with oblique hole or oblique concave shape. The traditional oblique core-pulling mechanism adopts a gear-rack or spring oblique core-pulling mechanism. The advantage of the gear-rack core-pulling mechanism is that the pulling force is large, but the disadvantage is that the structure is complex and the precision of the gear-rack is high. Manufacturing The cost is high, the meshing impact is large, and it is not stable enough. Although the spring oblique core-pulling mechanism has a simple structure and low cost, the pulling force and cor...

AI Technical Summary

Problems solved by technology

The traditional oblique core-pulling mechanism adopts a gear-rack or spring oblique core-pulling mechanism. The advantage of the gear-rack core-pulling mechanism is that the pulling force is large, but the disadvantage is that the structure is complex and the precision of the gear-rack is high. Manufacturing The cost is high, the meshing impact is large, and it is not stable enough. Although the spring oblique core-pulling mechanism has a simple structure and low cost, the pulling force and core-pulling distance are small, which limits the scope of use.

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