Automobile mould
1. Basic Principles of Dual-color Die Design:
(1) Hard glue once and soft glue twice;
(2) transparent once and opaque twice;
(3) The plastics with high forming temperature are made once and the plastics with low forming temperature are made twice.
Automobile die is the basic principle of making two-color die, otherwise the die will be made in vain. In addition, when sealing glue, try to use the breaking glue instead of inserting the breaking glue, even if it is suggested to modify the product, try to rely on the breaking glue.
2. The guide sleeve of the embryo guide pillar of the plastic two-color mould must be symmetrical in both sides, and the front and rear moulds must be symmetrical.
3. The back die of the plastic double-color mould should rotate 180 degrees and the front die should not move. Automobile mould
4. The spacing of products must be based on the spacing of the nozzles of injection moulding machines. The spacing of the nozzles of some two-color injection moulding machines abroad can be adjusted, some can not be adjusted, and the spacing of the nozzles at home can not be adjusted.
5. Two separate ejection systems and two ejector sticks. Plastic two-color die rear die two products are the same, the thimble is the same, is the rotation relationship, must not be made into translation relationship.
6. The pin plate of plastic double-color mould can only be reset by spring, not by screw, because the rear die has to rotate.
7. Plastic double-color die side lock must be on the four sides of the center of the die, and the front and rear die are symmetrical. Otherwise, when the rear die rotates 180 degrees, it will not match the front die.
8. If the distance between the injection point and the nozzle of the injection machine is different, the top rod hole should be waist-shaped, because the distance between the top rod of the injection machine is not adjustable. Note that most of the injection moulding nozzles of domestic two-color injection moulding machines are not adjustable.