When the plastic melt is formed in the mold cavity, there needs to be a mechanism to let the molding product leave from the cavity, the mechanism is called the
plastic mold ejection mechanism. The ejection mechanism is implemented through the ejection rod or hydraulic cylinder of the injection machine.
- Composition of ejection mechanism In the plastic mold, the ejection mechanism is composed of ejector pin, upper ejector plate, lower ejector plate, ejector leader pin and ejector leader bushing, and a reset pin.
2. According to the classification of ejection power source, the ejection mechanism of plastic mold is divided into the following types:
A. Manual removal
B. Mechanical ejection
C. Hydraulic jacking out
D. Pneumatic ejection
3. According to the type of ejection parts, the ejection mechanism of plastic mold is divided into the following types:
A. Push the board out
B. The thimble popped out
C. The cylinder tops out
D. Die core rotary ejection
4. Design idea of ejection mechanism of plastic mold
A. The ejection mechanism should be arranged on the movable side of the plastic mould as far as possible
B. Ensure that the plastic parts do not deform in the process of ejecting, so the reasonable selection of ejecting structure and top position is the basic skill of plastic mold design engineers
C. The ejection mechanism should be simple and reliable to ensure the mass production of plastic molds and reduce the manufacturing cost of plastic molds
Forwa Precision Plastic Mould Company has 20 years of experience in
plastic mould manufacturing. If you are interested in the knowledge of plastic mould, you can communicate with our plastic mold design engineer.
