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Design of automobile bumper die
Resource: “ 伟一模具科技有限公司
2022-07-22 17:19:32

Plastic bumper instead of metal insurance is the development trend of automobile mould. The design of plastic bumper mould mainly adopts two kinds of structure at home:

1, exterior fractal

2, internal fractal

The first structure is simpler than the die design, and the second structures are much more complicated than the first one in comparison with the mold structure and die strength.

But now that consumers are demanding more and more cars, the interior fractal, which is the only high-grade bumper used in the past, is gradually replacing the first structure:

Because the parting line is set on the B surface, if the conventional slope is introduced, the mechanism will be released after opening the mould. The interference between the counter of the fixed mould and the oblique pushing block will cause damage to the die when the mold is opened. Therefore, avoiding the collision between the oblique and fixed modes becomes the key point of design

Generally, it is solved by the following points

1. When the mold opens, the inclined top block is synchronously launched, that is, when the die is opened, the hydraulic pushing plate is pushed to keep the relative position between the pushing plate and the fixed mould.

2, the use of product deformation, through the oblique block blocks in the horizontal slider, the end of the internal pull, through the end of the slider at the end of the guide to control the stroke, so that the end of the part from the fixed mode barb

3, open the mold, so that the product and fixed die separation.

4, continue to push out, and through the lateral slider at the end of the guide rail to control lateral sliding outward movement, so that product deformation reset

5, and finally continue to push up, so that their products removed so far

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