The main unit of the mold(1)

1. Punch and die unit (round)
2. Pressing bolt and spring unit
3. Guide pin unit
4. Lifting and topping unit
(1). Lifting pin unit: its main function is to lift the strip to the die during continuous stamping processing (the height of the position is called the feeding height, and achieves the purpose of smooth feeding. Its forms are:
(A). Lifting pin type (round, purely for lifting), is the most common lifting pin unit.
(B). Lifting pin type (round shape, with holes for guide pins), the lifting pin is equipped with holes for guide pins to prevent the material from bearing the deformation of the guide pin and make the guide pin work.
(C). Material lifting and guide pin type, both have the function of guiding material. This type of material lifting pin type is most commonly used for the material guiding of continuous molds.
(D). Lifting pin type (square) If required, there is an air blow hole.
(E). Lifting material and guide pin type (square).
(2). Material ejection unit: during automatic stamping processing, it is necessary to prevent punching products or punching chips from jumping on the surface of the die to avoid mold damage and bad stamping parts.
(3). Ejection unit: The main function of the ejection unit is to eject products or waste from the cavity during each stamping process. Installation site of the ejector unit 2:
(A), the reverse configuration mold is set on the upper mold part,
(B). The collocation type mold is set on the lower mold part.
5. Fixed pin unit
The shape and size of the fixed pin unit are designed in accordance with the requirements of standard specifications. The precautions when using it are as follows:
(A). The fixing pin hole should be a through hole. If it is not possible, consider a design method that is easy to use screws to remove.
(B). The length of the fixing pin should be moderate, and it should not be longer than the necessary length.
(C). The fixed pin hole should have a necessary escape part.
(D). When it is placed in the upper mold part, a mechanism to prevent it from falling should be designed to prevent it from falling.
(E). When one side is press-fitted and the other side is sliding, the fixed pin hole on the sliding side is slightly larger than the fixed pin. (F). The number of fixed pins is based on the principle of two, try to choose the same size.