Five elements in plastic mould

1. Parting line: the contact surface between the plastic mold and the punch when it is closed. The selection of its position and form is affected by product shape and appearance, wall thickness, forming method, post-treatment process, die type and structure, demoulding method and forming machine structure.

2. Structural parts: sliding block, inclined top and straight top of complex mold. The design of structural parts is very critical, which is related to product life, processing cycle, cost, product quality and so on. Therefore, the design of complex core structure needs the designer’s comprehensive ability, and tries to pursue a simpler, more durable and more economical design scheme.

3. Accuracy: i.e. card avoidance, precision positioning, guide post, positioning pin, etc. Positioning system is related to product appearance quality, mold quality and mold life. Different positioning methods are selected according to different die structures. The control of positioning accuracy mainly depends on processing. The positioning of the internal mold is mainly considered by the designer, and a more reasonable and easy to adjust positioning method is designed.

4. Gating system: that is, the feeding channel from nozzle to cavity of injection molding machine, including main sprue, branch sprue, gate and cold cavity. In particular, the choice of gate position should be conducive to filling the cavity with molten plastic under good flow state, and when opening the mold (except hot runner mold), the solid runner and gate cold material attached to the product can be easily ejected and taken out from the mold.

5. Plastic shrinkage and factors affecting the dimensional accuracy of products: such as plastic mold manufacturing and assembly errors, mold wear, etc. In addition, the matching of molding machine process parameters and structural parameters should also be considered when designing compression mold and injection mold.



About Huizhou Dj Molding Co., Ltd

Dj Mold is a China mold maker of plastic molds- injection mold, die casting moulds, plastic blow molding, rotational molding, medical plastic injection molding, two shot plastic injection molding, insert molding, overmolding, metal injection molding, micro injection molding, powder injection molding, ceramic injection molding, liquid injection molding, husky injection molding, household mold, casting mold, die mold tool, custom molds, china moulds, rapid prototyping tooling, plastic prototyping tooling, punch press tooling, die and tooling for mobile/ cell phone parts, automotive parts, vacuum cleaners, rechargeable tools, telephones, copiers, computers, multimedia speakers, and many other electronic products and household appliances. And also a plastic product manufacturer, mold manufacturer China– plastic parts, plastic water tank, plastic balls, plastic containers, plastic buckle, plastic anchor, plastic hanger, plastic spoon, plastic pipe fitting, plastic tumble, plastic tableware, plastic cups, plastic bottles, plastic tray, plastic cosmetic container, plastic case, plastic food container, plastic chairs, plastic caps, plastic cap closure, plastic tubes, plastic water pipes, plastic knobs, plastic tubing, plastic utility boxes, plastic racks and so on.

Person: James Yuan
Company: Huizhou Dj Molding Company Limited
Add:  LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China
Tel: 86-752-6682869
Email: [email protected]





Share this post