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Sharing Specific Mold Processing Methods

Posted by: Mu Ju 2021-10-28 Comments Off on Sharing Specific Mold Processing Methods

(1) Determine the type of mold.

Such as pressing die (open, semi closed, closed), casting die, injection mold, etc.

mold making

(2) Determine the main structure of mold type.

The ideal die structure is to determine the necessary molding equipment, the ideal cavity number, under absolutely reliable conditions can make the mold itself work to meet the technical and economic requirements of the plastic parts. The technical requirements for plastic parts are to ensure the geometry, surface finish and dimensional accuracy of plastic parts. The economic requirement of production is that the cost of plastic parts is low, the production efficiency is high, the mold can work continuously, the service life is long, and the labor force is saved.


1, Design drawings

  • whether the placement parts of each mold part on the assembly drawings are appropriate, indicating whether they are clear and omissions.


2) The part number and name on the part drawing, the quantity of production, whether the part is manufactured internally or outsourced, whether it is a standard part or a non-standard part, the precision of the part matching treatment, the corrected processing and allowance at the high-precision dimension of the plastic part, and whether the material, heat treatment, surface treatment and surface finishing degree of the mold parts are marked. Clear description;


3) The main parts of the parts, the working dimensions and the matching dimensions of the molding parts. The size number should be correct, and the producer should not be converted.


4) Check the view position of all parts drawing and assembly drawing, whether the projection is correct, whether the drawing method conforms to the drawing national standard, whether there are missing dimensions.


  1. Check processing performance


(all parts geometry, view drawing, size, etc.) is conducive to processing.


  1. The main working dimensions of the auxiliary tools.


  1. Professional proofreading is carried out according to the self-proofing project of the designer in principle, but it should focus on the structural principle, technological performance and operation safety. When digesting drawings, we must first digest the figures, depict them according to the requirements of the national standard, and fill in all the dimensions and technical requirements. Draw after school and sign.


  1. Give the drawings to the designer for proofreading and signature. It is customary practice for the technical personnel concerned in the tool manufacturing unit to examine, sign and check the manufacturability before sending them to the sun.


  1. Compile manufacturing process cards.


The technical data produced during the period from the beginning of the design mold to the success of the mold processing and the qualified inspection, such as the task sheet, the drawing of parts, the technical specification, the assembly drawing of the mold, the drawing of the mold parts, the base drawing, the design specification of the mold, the inspection record sheet and the record of the trial and repair of the mold, are systematically arranged and assembled according to the regulations. Filing and ordering. It seems very troublesome to do this, but it is very useful for repairing molds and designing new molds later.


PTJMould Industrial Company Limited, established in 2010, is a leading injection moulding manufacturer in China. PTJMould specializes in plastic mould production for household appliances, medical equipments, electronic equipments, safety equipments as well as monitoring system.

The company has over 15000 square metres factory. With plastic injection tooling divisions possessing different machinery and expertise, PTJMould offers tools from small and precise mobile phone parts to as big as automotive parts. Our tools are mainly exported to U.S.A., Europe, Japan and UK. PTJMould’s diversification strategy and full service has won compliment from customers all over the world.

Our mission is to provide our customers high quality moulding products and services. We aim to exceed our customers’ expectations of pricing, quality and on-time delivery. To achieve our mission, PTJMould:

  • Commits to continually improve employee skills and efficiency,
  • Provides our employees a clean and safe working environment,
  • Upgrades machine technology and support equipment through a strict maintenance program, and
  • Maintains customers’ tooling to its highest peak of performance

For more about custom manufacturer of plastic molding products,please visit https://www.plastics-moulding.com/


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