Injection mold for automobile trims

Abstract

The invention discloses an injection mold for automobile trims. The ejection mechanism of the injection mold comprises an ejection cylinder, an ejector pin fixing plate, an ejector pin base plate, a plurality of oblique ejector pins, a plurality of straight ejector pins and a plurality of accelerated ejection units, wherein each accelerated ejection unit comprises an accelerated ejector pin and adriving mechanism; the accelerated ejector pins are vertically mounted on the ejector pin fixing plate; each oblique ejector pin, each straight ejector pin and each accelerated ejector pin are arranged to simultaneously pass through the ejector pin fixing plate, a movable mold plate and a movable mole core, respectively; the top ends of each oblique ejector pin, each straight ejector pin and eachaccelerated ejector pin separately face a mold cavity; the top end of each oblique ejector pin faces a buckle on the mold cavity; one accelerated ejector pin is arranged beside each oblique ejector pin; and the driving mechanisms are mounted on the ejector pin fixing plate to drive the accelerated ejector pins to move up and down. Since a injection-molded part is ejected out through cooperation among the accelerated ejection units, the oblique ejector pins and the straight ejector pins, the design strength of the inclined ejector pins can be ensured, the smooth release of the injection-moldedpart can be ensured, the injection-molded part can be easily taken out, and production efficiency is improved.

Description

technical field [0001] The invention relates to an injection mold, in particular to an injection mold for automobile decorative strips. Background technique [0002] As the main exterior trim parts of automobiles, automobile decorative strips are more and more favored by consumers and are widely used in automobiles. Automotive moldings are usually injection molded and installed on the car by snap fit. Injection molds generally include a movable template and a fixed template. The movable template is provided with an ejection mechanism. After the automotive trim is injected, the ejector mechanism ejects the injection molded part from the movable mold core. The overall car trim is a slender structure, figure 1 For the rear view of a common car trim, figure 2 It is a cutaway view of a buckle position, figure 1 and figure 2 Among them, 1 is buckle. The buckle position of the car trim is narrow and needs to cooperate with the slanted ejector pin of the ejection mechanism. ...

AI Technical Summary

Problems solved by technology

The buckle position of the car trim is narrow and needs to cooperate with the slanted ejector pin of the ejection mechanism. In order to ensure the strength of the slanted thimble, the width of the slanted thimble is usually consistent with the width of the U-shaped groove at the buckle position, and the slanted ejector needs to be extended. The two buckles opposite to each other are in contact with the buckles. When the part is taken out after injection molding, although the slanted ejector pin can slide out of the buckle position and disengage from the buckle, both sides of the injection molded part will still be wrapped on the slanted thimble. Difficulty in picking up parts, affecting production efficiency

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