Core pulling mechanism of automobile front door upper framework

Abstract

The invention discloses a core pulling mechanism of an automobile front door upper framework. The core pulling mechanism comprises a product (20), wherein the product (20) comprises a small end (2); the lower part of the small end (2) is provided with a warped surface (10); the inner side of the warped surface (10) is provided with an inverted buckle (11); an included angle between the inverted buckle (11) and the vertical direction is 50 degrees-65 degrees; the product (20) also comprises a core pulling mechanism for pulling a core of the small end (2); the core pulling mechanism comprises a slide block (1), a straight ejector (21), an oblique ejector (3), an oblique ejector body (8), a first oblique ejector slide base (7) and a second oblique ejector slide base (14), wherein the straight ejector (21) is positioned on the inner side of the upper part of the small end (2); the lower end of the straight ejector (21) is provided with a straight ejector bar (4); the slide block (1) is matched with the oblique surface of the upper end surface of the straight ejector (21). The invention provides the core pulling mechanism of the automobile front door upper framework, which is large in oblique ejector walking angle, can guarantee no seizing and self-locking in the walking process, and is beneficial to core pulling.

Description

technical field [0001] The invention relates to a core-pulling mechanism, in particular to a core-pulling mechanism for an upper frame mold of an automobile front door. Background technique [0002] The upper frame of the front door of the car is a decorative strip, and its two ends are one end large and the other end small, such as figure 1 , The big end and the small end of the upper frame of the front door of the car are connected by twisting. The upper frame of the front door of the car is generally injection-molded. The structure of the big end is simple and easy to pull the core and demould. The structure is complicated. According to the existing technology, the inclined top core is generally used. The angle of the inclined top is 0~45° when the core is pulled. However, there is a large angle of undercut in the upper frame of the front door of the car, and the angle of the inclined top is too small. It is prone to seizure or self-locking during walking, which is not c...

AI Technical Summary

Problems solved by technology

[0002] The upper frame of the front door of the car is a decorative strip, and its two ends are one end large and the other end small, such as figure 1 , The big end and the small end of the upper frame of the front door of the car are connected by twisting. The upper frame of the front door of the car is generally injection-molded. The structure of the big end is simple and easy to pull the core and demould. The structure is complicated. According to the existing technology, the inclined top core is generally used. The angle of the inclined top is 0~45° when the core is pulled. However, there is a large angle of undercut in the upper frame of the front door of the car, and the angle of the inclined top is too small. It is prone to seizure or self-locking during walking, which is not conducive to core pulling

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