The bottom plate of the mold should have qualified ejector holes

The mold should be equipped with a suitable flange ring and a standard code mold hole should be opened. The thimble should be set so that the plastic part will not be permanently deformed, whitened, and not affect the appearance of the plastic part when it is demolded. The front and back molds and inserts of corrosive materials such as PC, POM, PE need to use 420 steel (such as S136, M300, M310, etc. The steel used for the mirror mold is 420 steel (such as S136, M300, M310, etc. (Equivalent to Japanese Ace Steel) The surface hardness of the materials used in the blank, side nails, back nails, center brackets, and center brackets is not less than HRC60.). The back mold uses general P20 steel (such as MUP, M202, etc. The row position should be equipped with a spring to make the row position pop out, and a limit device should be installed. Mold identification: The outside of the mold should be printed according to customer requirements.). The mold base is marked with the P/N number and the plastic part number according to the customer's designated position. Row structure.

The three-plate mold should be installed with buckle lock and lock nails, and the material pulling hook and nozzle plate should be installed, and the elastic ring should be opened first. The horizontal movement should be smooth, and the contact surface should have an oil groove.If the customer specifies that mold steel should be used, the PTFE Coated Fiberglass Fabric Cloth mold factory should meet customer requirements.), and the back mold insert uses 1050-1055 steel or better material.

Beer ABS, HIPS material front mold and front mold inserts are made of super P20 steel (such as 718, M238, etc. The surface hardness of the inclined top and swing bar is not less than HRC35, and the surface hardness of the push plate is not less than HRC28. Mould structure (1) Mould material The steel used for each plate of the mould blank is not less than 1050 steel. The total height of the Huff block moving in the height direction cannot exceed 2/5 of the length of the guide chute.

Purpose: Establish standards for recognizing molds from three aspects: mold structure, quality of rubber parts and injection molding process requirements, and evaluate and score mold quality accordingly, and hope to continuously improve mold quality; ensure that molds can be put into production normally and produce qualified quality The plastic parts meet the requirements of product design.

Ejection mechanism. The ejector plate of the mold should be equipped with a return spring. The thimble mechanism should be flexible, reliable, and free from wrong actions. When closing the mold, the front template should first contact the return pin, otherwise the mold should be equipped with a reset mechanism (the position structure is required separately). One mold with multiple cavities should be marked with the mold cavity number, and multiple inserts should be marked with the insert number according to the design requirements.). The bottom plate of the mold should have qualified ejector holes, and the position of the holes should meet the ejector balance requirements. The mold should have a structure