The ejection mechanism of the inner card groove of the injection mold of the automobile lamp

Abstract

The invention discloses an internal clamping groove demolding mechanism of an automobile lamp injection molding mold. The internal clamping groove demolding mechanism comprises an upper doubling plate and a lower doubling plate, wherein a mold cavity below a mold cavity base plate below the upper doubling plate is internally provided with a mold cavity insert; an ejector pin base plate and an ejector pin fixing plate are arranged between support blocks on the lower doubling plate; ejector pins and an ejector column are arranged between the ejector pin base plate and the ejector pin fixing plate; the support blocks are provided with a mold core base plate; the mold core base plate, the ejector pin base plate and the ejector pin fixing plate are externally provided with a secondary mold opening control device; an automobile lamp is arranged between the mold cavity insert and a mold core insert which is arranged in a mold core on the mold core base plate; the inner wall of a turning edge at one side of the automobile lamp is provided with an internal clamping groove. The internal clamping groove demolding mechanism of the automobile lamp injection molding mold is characterized in that the mold core base plate is provided with a locking rod and a guide rod; the head part of the guide rod is provided with an oblique guide column; the mold core insert is provided with an internal core pulling slide block and a guide slide block; the guide slide block is provided with an oblique guide hole matched with the oblique guide column; the secondary mold opening control device comprises a secondary mold opening ejection rod; two sides of the mold core are provided with secondary mold opening ejection blocks which are provided with oblique slide surfaces; the oblique guide surfaces of the guide columns installed at two sides of the mold core base plate are in contact with the oblique slide surfaces.

Description

technical field [0001] The invention relates to an injection mould, in particular to an inner slot demoulding mechanism of an injection mould for an automobile lamp. Background technique [0002] When using injection molds to produce plastic parts, if one side of the plastic part is made with flanging, and the inner wall of the flanging is shaped with structures such as slots, buckles, and undercuts, the existing technology is to set an oil cylinder in the core and slide it block and inner core-pulling slider. After the mold is opened, the oil cylinder drives the oblique slider. The oblique slider cooperates with the inner core-pulling slider to make the inner core-pulling slider fall out of the card slot or buckle or buckle inward, but the The structure of the similar technical scheme is complicated, which increases the manufacturing cost of the mold. Contents of the invention [0003] The object of the present invention is to overcome the shortcomings of the prior art, ...

AI Technical Summary

Problems solved by technology

[0002] When using injection molds to produce plastic parts, if one side of the plastic part is made with flanging, the inner wall of the flanging is shaped with structures such as slots, buckles, and undercuts. block and inner core-pulling slider. After the mold is opened, the oil cylinder drives the oblique slider. The structure of the similar technical scheme is complicated, which increases the manufacturing cost of the mold

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