Automotive Forgings

Key points of design

1、 Matters to be reviewed before design

1. Mold material

2. Molding products

3. Molding machine selection

4. Basic structure of mold base

2、 Important items of mold design

1. Multicolor injection combination mode

2. Gating system

(1) The injection pressure is low.

(2) Rapid filling can increase the output.

(3) It can be shot evenly, and the product quality is good.

(4) Reduce waste and shorten the shooting time.

3. Forming equipment:

(1) The output of each injection cylinder determines which cylinder is used for the same color.

(2) The position and stroke of the striking rod.

(3) The configuration of the water circuit, oil circuit and circuit on the rotary disc.

(4) Bearing capacity of the rotating disc.

4. Mold base design: mold core configuration design

First of all, considering that the male mold side of the mold manufacturer must be rotated 180 degrees, and the mold core must be arranged in a cross symmetric manner, otherwise the mold cannot be closed for molding.

(1) Guide post: It has the function of guiding male and female moulds. It must maintain concentricity in multi-color moulds.

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

(3) Locating block: ensure that the two mold bases are not offset due to the gap between the screws when they are fixed on the large fixed plate.

(4) Adjustment block (wear-resistant block): It is mainly used to adjust the error of the z coordinate value of the mold height during mold closing.

(5) Ejecting mechanism: the design of ejection mode is the same as that of general mould.

(6) Cooling circuit design: the cooling circuit design of mold I and mold II shall be the same as far as possible.