The precision requirements of plastic mold parts are high, and Mulan strictly controls the quality!

In order to ensure the normal operation of the plastic mold, the concave-convex modules can cooperate with each other, and the dimensions and tolerances should be formulated in strict accordance with the requirements in the design. The verticality between the ground of the insert and the cutting edge shall not be greater than 0.01mm, there shall be no inverted taper, looseness up and down, and the joints of the insert shall not cross and overlap.





In principle, it is not allowed to weld the fixed part of the insert and the cutting edge, unless it is required in the design, because the surface treatment is required in the later stage.
Concave-convex die The part number is marked on the position of the concav-convex die, fixed plate and mounting plate. The edge of the waste edge is chamfered according to the size of the part. There can be no gap between the bright key and the dark key, and they can cooperate with each other.






There are requirements for the parallelism between the mated key and the two fitting surfaces, and the specific value needs to be determined according to the type and characteristics of the plastic mold.


The coaxiality between the guide column hole and the guide sleeve hole on the upper and lower base plates is not greater than 0.01mm, and the installation position of the working parts on the base plate must not have cracks or loosening. The lifting burrs need to be removed in time, and the chamfer size of the upper and lower bottom plates is set according to the overall size of the mold.