Plastic molding mold processing what matters needing attention?

Mold shell is a special tool for manufacturing plastic products. It consists of several sets of parts, and this combination contains a molding cavity. During injection molding, the mold shell is clamped on the plastic machine, and the melted plastic is introduced into the mold core, and the cooling is set in the cavity, then the left and right mold is separated, and the product is separated from the mold shell by injection system, and the final mold With the next injection molding process, the whole process of injection molding is repeated.

With the rapid development trend of industrialization, plastic products in agriculture and animal husbandry, daily life, automation technology and other aspects of the universal application, the quality standard of plastic products is becoming higher and higher, the quality of plastic molding shell put forward more stringent requirements. Therefore, the quality management of every little detail in plastic molding mold processing is very important. So we should pay attention to what matters needing attention in plastic molding mold processing?

(1) The processing technology of plastic forming mould is simple and specific, and the production and processing content is indicated by the standard value as far as possible;

(2) The key and difficult points in the processing of plastic forming mould should be emphasized in the processing technology;

(3) If it is a mold part that must be composed of production and processing, the production process must be described clearly;

(4) When the inserts need to be produced and processed separately, attention should be paid to the technical provisions indicating the processing accuracy;

(5) After the mold parts are composed and produced, if there are insert parts that must be produced independently, the independent production and processing standards must be installed in the composition and production process;

(6) In the plastic molding mold processing torsion spring is very easy to damage, so the long service life of the mold spring should be used.

(7) The expansion index of each material is not the same, and the plastic mold should have a reasonable shrinkage rate.

(8) The plastic mold should have sufficient bending stiffness, otherwise it will be deformed when the mold is closed and the pressure is maintained, resulting in "burr edge".

(9) Choose a reasonable way to die, choose a reasonable position and number of ejector rod, to ensure that the product is not damaged in the process of ejecting.

(10) The mold should choose a reasonable exhaust position and quantity control, otherwise it will cause plastic injection dissatisfaction and make the goods "lack of material".

(11) The injection channel should be selected reasonably, so that the material can be evenly arrived at each place (the flow diameter is equal), and there is sufficient storage to ensure that the plastic is supplemented in the whole process of expansion and expansion.