Injection mold is a tool for producing plastic products; It is also a tool to give plastic products a complete structure and size. The structure form and mold processing quality of injection molds directly affect the quality and production efficiency of plastic parts. Injection mold assembly is an important post-process in the injection mold manufacturing process, mold quality and mold assembly are closely linked, mold parts through milling, drilling, grinding, CNC, EDM, turning and other processes processing, after passing the inspection, it will be concentrated on the assembly process; The quality of assembly directly affects the quality of the mold and is one of the determining factors of the quality of the mold; Without high-quality mold parts, there is no high-quality mold; Only high-quality mold parts and high-quality mold assembly process technology can have high-quality injection molds.

Today, 100Well's Education Xiaobian will combine 100Well's "Plastic Mold Making" course and its three-dimensional interactive resources to introduce the assembly process of injection molds.

The assembly reference part of the assembly fixed mold component is selected, and the fixed template is selected as the assembly reference part of the fixed mold assembly according to the small bowl injection mold assembly drawing. Assemble the guide sleeve, put the guide set into the hole of the fixed template guide sleeve, and ensure that the center of the guide sleeve is perpendicular to the fixed template parting surface. Assemble the small core, load the small core into the small core hole of the fixed template, and ensure the accurate matching of the profile. After the assembly is completed, the fixed template is placed on the surface grinding machine, and the upper surface of the fixed template, the upper surface of the guide sleeve and the upper surface of the small core are reconditioned and polished based on the parting surface of the fixed template.

The picture shows 100 Weller Education assembling a small core

Assemble the fixed mold seat plate, assemble the fixed mold seat plate on the upper surface of the fixed template, and pay attention to check that the joint surface of the two plates needs to be fitted without shaking. Assemble the gate bushing, adjust the gate bushing hole matching position of the fixed mold seat plate and the fixed template center, fit the gate bushing into it, and ensure that the lower surface of the gate bushing is level with the fixed template parting surface. Assemble the fixed mold seat plate fastening screws, adjust the position of the fixed mold seat plate and the fixed template screw hole, and screw in the screws to tighten the screws in a symmetrical manner. Assemble the gate washer so that the inner hole of the gate washer and the outer ring of the gate bushing cooperate with each other, and at the same time make the outer ring of the gate washer and the gate pad mating hole of the fixed mold seat plate cooperate with each other.

The picture shows 100 Weller Education assembly gate washer fastening screws

Assemble the gate washer fastening screws, adjust the position of the gate washer and the fixed mold seat plate screw hole mating position, and screw in the screws to tighten the screws in a symmetrical manner. Assemble the pipe fittings, install the pipe fittings on both sides of the fixed template at the end of the cooling water hole, and pay attention to the sealing of the installation. The assembly reference parts of the assembly components are selected, and the core fixing plate is selected as the assembly reference part of the fixed mold assembly according to the assembly drawing of the small bowl injection mold. Assemble the guide column, use the contour pad to pad the core fixing plate, use a press to press the guide column into the guide column hole, and when pressing into the guide column, ensure that the center of the guide column is perpendicular to the surface of the core fixing plate. Assemble the large core, load the large core into the core hole on the core fixing plate, and ensure the accurate fit of the profile. After the assembly is completed, it is necessary to check whether the mating surface of the core fixing plate is flat, if not, it is necessary to use a surface grinding machine for regrinding treatment.

The picture shows 100 Weller Education assembling a large core

Assemble the core gasket, so that the core gasket and the core fixing plate are aligned, and when assembling, check whether the fit between the two plates is tight and whether there is shaking. Assemble the reset rod assembly to load the reset rod into the push plate, the bottom surface of the reset rod must not be higher than the bottom surface of the push plate, the pull rod into the push plate, the bottom surface of the pull rod must not be higher than the bottom surface of the push plate, assemble the push plate pad assembly screw, and load the reset rod assembly into the core gasket

The picture shows 100 Weller Education assembly moving mold seat plate

Assemble the pad, and pay attention to the installation position and direction to assemble the moving mold seat plate, and pay attention to the installation position and direction of the assembly screw, assemble the moving mold seat plate fastening screw, tighten the screw in a symmetrical way to assemble the garbage nail, assemble the garbage nail clamping mold to trim the reset rod according to the position and requirements of the assembly drawing, check whether the upper surface of the reset rod is level with the surface of the core fixing plate, if the surface of the upper end of the reset rod is higher than the surface of the core fixing plate, you can use a diamond file or grinding wheel for trimming. The assembly of the moving formwork assembly slips into the moving formwork sleeve and ensures the fit requirements. Based on the center of the slide sleeve, assemble the moving formwork assembly to the guide post to close the mold, and before closing the mold, it should be confirmed again that all screws are tightened. When clamping the mold, the guide column should be aligned with the guide sleeve, so that the fixed mold assembly slides in parallel, and the contact between the fixed mold assembly and the moving mold assembly is checked with a feeler gauge, and the general contact gap is not more than 0.4mm.