What are the effects of the travel action on the life of the plastic shell mold?


There are many factors that affect the life of plastic […]

There are many factors that affect the life of plastic shell molds. This article mainly describes the movement of plastic shell molds.

1. The slider action of the plastic shell mold should be smooth and not stuck. It is necessary to ensure that the parts are not deformed, and there can be no dead action, unevenness, loosening, etc.;

2. The oil groove should be opened on the sliding surface of the large slider;

3. The large slider must have cooling water channels;

4. The sliding block and the sliding seat part adopt the HVE6 combined structure, which cannot be loosened;

5. When the sliding stroke is too long, the guide must be increased on the die base. Generally, the guide length is about 1.5 times the width. When the core is pulled, the slider in the guide is matched with the guide rail. 2/3 of the pipes of the rail section are placed in the rail;

6. There must be a gap greater than 0.2mm between the oblique guide column hole and the oblique guide column, and it is forbidden to cooperate with the same specification;

7. The angle of the inclination guide is less than 2 degrees of the inclination of the wedge surface of the row position. The wedge block of the large slider must extend into the lower die of 15-20 mm and interlock with the 10 degree of the inclined surface.

8. The cavity of the combination of circular sliders, the longitudinal direction and the angular direction of the circular slider, and the angle of the inclined guide column are different by 2 degrees. It is forbidden to use sliders of the same size. The final position of the slider is above the mold, and a slingshot must be used. Push or pull, the wave ball cannot be used in form, so as to prevent the slider from hitting the round slider and the inclined guide column when the plastic shell mold is closed.

9. In addition, wear-resistant plates must be installed on the rubbing surfaces of all rows, and the length of the rubbing surfaces is greater than 30mm and the width is greater than 50mm. Both the detail and the row position pressure plate need to be quenched and hardened above 52HRC, and the larger part should be nitrided or hardened according to the requirements of the plastic shell mold before the mold is opened.