Key points of hardware mold development and design

1. Review matters before design

1. Mold material

2. Molded product

3. Molding machine selection

4. Basic structure of mold base

2. Important items of mold design

1. Multi-color injection combination method

2. Runner system

(1) The injection pressure is low.

(2) Fast filling is completed, which can increase output.

(3) It can be injected uniformly and the product quality is better.

(4) Reduce waste and shorten injection time.

3. Forming equipment:

(1) The injection volume of each injection cylinder determines which one to use for the color.

(2) The position and stroke of the striker.

(3) The configuration of the water circuit, oil circuit, and circuit on the rotating disk.

(4) The carrying weight of the rotating disk.

4. Mold base design: mold core configuration design

First, consider that the male side of the mold must be rotated 180 degrees, and the mold core must be arranged in cross-symmetrical arrangement, otherwise the mold cannot be closed for molding.

(1) Guide post: It has the function of guiding male and female molds. Concentricity must be maintained in multi-color molds.

(2) Return pin: Since the mold must be rotated, the ejector plate must be fixed, and a spring is added to the return pin to keep the ejector plate stable.

(3) Positioning block: to ensure that the two mold bases are fixed to the large solid plate without deviation due to the gap between the screws.

(4) Adjustment block (wear block): It is mainly used for adjustment when the mold height z coordinate value is incorrect when the mold is closed.

(5) Ejection mechanism: The design of ejection method is the same as that of general molds.

(6) Cooling circuit design: The cooling circuit design of mold one and mold two should be the same as possible.