Design Instructions For The Injection Mold Gate Of The Capping Machine

1. The gate of the capping machine is opened in the thicker section of the plastic part, so that the melt flows from the thick section into the thin section to ensure complete mold filling.

2. The selection of gate position should make the plastic filling process the shortest to increase the pressure loss.

3. The selection of the gate position should be beneficial to sweep the air in the cavity.

4. It is not advisable for the gate to make the melt directly rush into the cavity, otherwise swirling will occur, leaving swirling marks on the plastic parts, especially narrow gates are more likely to show this defect.

5. The selection of the gate position of the capping machine should avoid the occurrence of seam lines on the plastic surface, especially in the circular or cylindrical plastic parts, which should be added at the melt pouring on the surface of the gate. Cold feed well.

6. The gate position of the injection mold with a slender core should be far away from the molding core, so that the molding core is not deformed by the impact of the material flow.

7. When forming large or flat plastic parts, in order to avoid warping, deformation, and lack of material, multiple gates can be used.

8. The gate should be opened as far as possible in a position that does not affect the appearance of the plastic part, such as the bottom of the edge.

9. The size of the gate depends on the size and shape of the plastic part and the performance of the plastic.

10. When designing multiple-cavity injection molds for the capping machine, consider the balance of the gates in combination with the balance of the runners, and try to achieve the same average filling of the molten material at the same time.