What are the basic parts of a plastic mold?
2024-10-20 17:59:50
Plastic molds are tools used in the plastics processing industry to match plastic molding machines, giving plastic products a complete configuration and precise dimensions. Due to the variety of plastics and processing methods, the structure of plastic molding machines and plastic products is complicated, so the types and structures of plastic molds are also diverse. The following China Plastics Network Industry Website - Jiuzhi Plastics Network takes everyone to look at the basic parts of the plastic mold, as follows:
1, the composition
The structure of the blow molding, the casting mold and the thermoforming mold is relatively simple.
Compression molding, injection molding and transfer molding are more complicated, and there are many parts that constitute such a mold.
The basic parts are:
1 Molded parts, including concave molds, punches, and various forming cores, are all parts of the inner and outer surfaces or upper and lower end faces, side holes, undercuts and threads of the molded product.
2 Supporting fixed parts, including mold base plates, fixing plates, support plates, spacers, etc., for fixing the mold or supporting the pressure.
3 Guide parts, including guide posts and guide sleeves, to determine the relative position of the mold or push mechanism movement.
4 core parts, including oblique pins, sliders, etc., are used to extract the movable core when the mold is opened to demould the product.
5 The introduction of parts, including putter, push tube, push block, pusher plate, pusher ring, push rod fixing plate, push plate, etc., to demould the product. The injection mold is popularized with a standard mold base. The mold base is a combination of basic parts that have been standardized and serialized in structure, form and size. The cavity can be processed according to the shape of the product. The use of standard formwork helps to shorten the molding cycle.
2, the role of common mold base parts
Pad: Die foot, its role is to make the top plate have enough space for movement.
Fixed mold fixing plate (A plate): the front part of the molded product.
Dynamic mold fixing plate (B plate): the mold part of the molded product.
Fixed mold plate (panel): Fix the front mold on the injection molding machine.
Flow channel board (water port board): remove the waste handle when opening the mold, so that it will fall off automatically (three-plate mold).
Push plate: When the mold is opened, the product is pushed out from the mold by pushing the parts through the top rod, the top block, the inclined top and the like.
Movable seat plate (base plate): The rear mold is fixed on the injection molding machine.
Guide column and guide sleeve: play the guiding position, assist the front and rear mold opening, mold and basic positioning.
Support column (head): Improve the strength of the B plate, effectively avoiding the deformation of the B plate caused by long-term production.
Top plate guide column (medium support): Guided positioning push plate to ensure smooth ejection.
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