Ejection device for automobile bumper mold

Abstract

The invention discloses an ejection device of an aluminum bumper mold. The ejection device comprises a first inclined ejection mechanism used for demolding of the reversed edge of an automobile bumper (1), a second inclined ejection mechanism used for demolding of the inclined side wall at the position of a lampshade panel of the automobile bumper (1), and a mold discharge assembly used for containing the first inclined ejection mechanism and the second inclined ejection mechanism. The lower end of the first inclined ejection mechanism is fixed to a top plate of a mold ejection mechanism, and a molded surface of the reversed edge of the automobile bumper (1) is arranged at the upper end of the first inclined ejection mechanism. The lower end of the second ejection mechanism is a free end and connected in the mold discharge assembly in a sliding manner, the upper end of the second inclined ejection mechanism is connected with the first inclined ejection mechanism through a linkage mechanism, and the molded surface of the inclined side wall at the position of the lampshade panel of the automobile bumper (1) is arranged at the upper end of the second inclined ejection mechanism. After the structure is adopted, because the lower end of the second inclined ejection mechanism is connected in the mold discharge assembly in the sliding manner and the upper end of the second inclined ejection mechanism is connected with the first inclined ejection mechanism through the linkage mechanism at the same time, the whole mold can be simpler in structure and smaller in size.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to an ejector device for an automobile bumper mold. Background technique [0002] With the development of the automobile industry, automobile bumpers, as an important safety device, not only have the function of protection, but also pursue light weight. Injection moulded. The car bumper made of plastic has good strength, rigidity and decorative properties, and can reach the buffer effect when the car collides to protect the front and rear car bodies. In the prior art, the car bumper will connect the panels at the position of the lampshade of the headlight or the rear light into a whole to increase the aesthetics, thus increasing the complexity of the car bumper, and its inner surface has curved surfaces, inverted buttons, etc. structure, which brings great complexity to the ejection device of the injection mold. In the prior art, a mold for forming an automobile bumper is usually p...

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Problems solved by technology

[0003] Generally, the demoulding requirements of automobile bumper products can be basically achieved by using the existing mold structure, but in actual production, especially when the above-mentioned structural requirements for connecting the panels at the position of the lampshade of the headlight or rear light are added, use Traditional molds cannot realize the one-time complete demoulding of automobile bumper products, because the panel at the lampshade position has a curved surface, and it is necessary to set two or more inclined roofs in the mold at the lampshade panel. However, the product The volume of the mold inside the inner surface is limited. If two sloping roofs are set inside the mold at the lampshade panel, if a traditional mold is used, a base will be set at the bottom of each sloping roof, and two or more bases It is impossible to arrange the space position in the mold, so it is difficult to realize the pick-up of this type of structure, which makes the pick-up of the entire product very difficult; and in order to ensure the smooth demoulding of the product, it is usually necessary to carry out secondary ejection to remove the entire car. The bumper product comes out of the mold, but if the second ejection is used, the demoulding cost will be greatly increased, and the demoulding efficiency will be reduced

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