How to choose a standard mold base for an injection mold processing plant to reduce processing time


Author: MULAN –Plastic Molding Manufacturer

Injection molds are customized for different plastic products, but there are many similarities in the structure of injection molds. Therefore, in order to manufacture molds more efficiently, injection mold processing plants began to use some standard mold blanks. In custom mold opening, injection mold processing plants Different plastic products can be injection molded only by making different molded parts, which greatly reduces the processing time of injection molds. So what problems should injection mold processing factories pay attention to when choosing standard mold blanks? 1. The thickness of the mold blank and the closing distance of the injection molding machine are different for injection molding machines of different models and specifications, and the closing distance of the clamping mechanism with different structural forms is also different. 2. The relationship between the distance between the opening stroke of the injection mold and the distance between the front and rear molds and the stroke required to eject the parts must be clearly defined in the design. The distance required for the parts should be less than the rated ejection stroke of the ejection hydraulic cylinder of the injection molding machine.

3. Injection mold processing plants should pay attention to the following when installing standard mold bases: 1) The dimensions of the standard mold base should not be affected by the distance between the tie rods of the injection machine; 2) The positioning aperture and the size of the positioning ring must be well matched; 3) The injection machine Whether the position of the ejection mechanism and the stroke of the ejector pin are appropriate; 4) Whether the aperture and spherical radius of the nozzle match the aperture of the casting sleeve and the size of the spherical groove of the mold; Match the corresponding screw holes on the fixing template. 4. When an injection mold processing plant chooses a mold base, it is necessary to understand the technical requirements of the plastic parts and their injection molding process, to ensure the performance and reliability of the plastic parts and injection molds, and to ensure the mechanical properties of the mold base parts, especially the mold base. Check and calculate the strength and stiffness to ensure that the dimensions of the front and rear molds and support plates meet the requirements of the mold structure.

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