The reasons for the bite of the plastic injection mold […]
The reasons for the bite of the plastic injection mold and its elimination method are as follows: The guiding mechanism of the mold guiding mechanism is not high. The guiding mechanism is to make the convex and concave molds tightly clamped, and the guiding precision is very high, so that the convex and concave molds can be properly matched, and the parting surface is tightly contacted. If the guiding precision is not high, the gap is large, and the mold may be deformed or twisted during molding to cause the mold to be bitten. For this, the guiding precision of the guiding mechanism should be carefully checked, the rigidity of the mold should be increased, and the deformation of the mold should be reduced.
The sliding part is to be slid to work frequently. If the hardness is too low, the oil is more likely to be bitten. After the slider is bitten, the flexibility of the movement is affected. For this reason, the hardness of the moving part should be appropriately increased, or the wear-resistant material should be selected. In addition, the moving part must not be deficient in oil.
If a bite occurs, the bite should be cleaned and the burr should be polished with a sand cloth. When the depression is formed, the edge of the depression should be rounded to avoid biting the mold again. The part of the mold can be cut off and then repaired. But the welding materials should be as identical as possible.