1. The two shapes of the mother die are different, forming one product respectively, while the two shapes of the male die are exactly the same.
Common yu zhuo double color mold image.
Common yu zhuo double color mold image.
2. The front and rear mold of the mold shall be rotated 180o after the center, which must be consistent.The design must do this check action, this point to the die positioning processing requirements higher.
3. The total thickness of the front die plate and A plate should not be less than 170mm.Please check the other reference data of this type of injection molding machine, for example, the maximum thickness of the mold, the minimum thickness of the mold, the distance of the KO hole, etc.
4. The water port of the three plate mould is best designed to automatically remove the mold.Special attention should be paid to the removal of the soft glue mouth.
5. In the design of the second injection mold, in order to avoid the second mother-die insert (or rub), the first time that the product has formed a good glue bit, it can design a part to avoid the air.But must be considered every seal adhesive strength, namely: in the injection molding, injection pressure, will there be in the big plastic deformation occurs, leading to the second injection may have a batch of front of may?
6. When injection molding, the product size of the first injection molding can be slightly larger, so that it can be pressed more tightly with the other in the second molding to achieve the effect of sealant.
7. Notice in the second injection molding, whether the plastic flow will be the first time that the product has been formed, to make the plastic bit deformation?If this is possible, be sure to find a way to improve it.
8. Before A and B plate closing, notice whether the front die slider or slant top will be reset first and then the product is crushed.In this case, it is necessary to find A way to make A and B plate first and then the sliding block or the slant top of the front die to be reset.
9. The water transportation arrangement of both mother and male models is as full as possible, and the balance is the same.
10.99% of the cases are the hard glue part of the injection product, and the soft glue part of the injection product.Because soft glue is easy to deform.