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• Posted By: xiu umin
• Posted On: Aug 26, 2019
• Views: 1
• Likes: 1
• Category: Sports
• Description: First, the process analysis of plastic products. Before the design of the Crate Mould(FURNITUREMOULD) https://www.furnituremould.com/ , the designer should fully analyze whether the plastic products conform to the principle of injection molding, and need to negotiate with the designers of the products, and a consensus has been reached. These include the geometry, dimensional accuracy and appearance requirements of the product, and the necessary discussion to avoid unnecessary cumbersome manufacturing of the crate mould. Second, the crate mould structure design. A set of high-quality crate mould requires not only good processing equipment and skilled crate mould, but another very important factor is the design of good crate mould , especially for complex crate mould. The quality of the mould and crate mould is more than 80% of the quality of the crate mould. An excellent crate mould design is: under the premise of meeting the requirements of customers, the processing cost is low, the processing difficulty is small, and the processing time is short. To do this, we must not only fully digest the requirements of the guests, but also have an understanding of the injection molding machine, the mould structure, the processing technology and the processing capabilities of the mould factory itself. Therefore, to improve the design level of crate mould, the following points should be achieved: 1. Understand every detail in each crate mould design and understand the purpose of each part in the crate mould. 2. In the design, refer to the previous similar design, and learn about the situation in the processing and production of the crate mould, and learn from the experience and lessons. 3. Learn more about the working process of the injection molding machine to deepen the relationship between the crate mould and the injection molding machine. 4. The factory understands the process of processed products and recognizes the characteristics and limitations of each process. 5. Understand the test results and mould changes of the crate mould designed by yourself, and learn the lesson. 6. Try to use the previously successful crate mould structure when designing. 7. Learn more about the impact of the crate mould on the product. 8. Study some special crate mould structures and learn about the latest crate mould technology. Third, determine the crate mould materials and selection of standard parts. In the selection of the crate mould material, in addition to the accuracy and quality of the product, it is necessary to give the correct choice in combination with the actual ability of the mould factory for processing and heat treatment. In addition, in order to shorten the manufacturing cycle, the existing standard parts are utilized as much as possible. Fourth, parts processing and ladle mould assembly. In addition to the optimum structure and reasonable tolerances of the design of the crate mould, the machining of the parts and the assembly of the moulds are essential. Therefore, the selection of machining accuracy and processing methods is absolutely dominant in the manufacture of crate mould. The dimensional error of a molded product is mainly composed of the following parts: 1. The manufacturing error of the mould is about 1/3. 2. The error caused by mould wear is approximately 1/6. 3. The error caused by uneven shrinkage of the molded part is about 1/3. 4. The error caused by the inconsistency between the predetermined contraction and the actual contraction is approximately 1/6. The total error = (1) + (2) + (3) + (4). Therefore, in order to reduce the manufacturing error of the crate mould, the machining accuracy should be improved first. With the use of CNC machine tools, this problem has been well controlled. In addition, in order to prevent the error caused by the wear and deformation of the mould, in the case of the crate mould with high processing precision and large product output, the key parts such as the cavity and the core should be quenched. In the medium and large crate mould, in order to save materials and facilitate processing and heat treatment, the crate mould should be designed with a mosaic structure. In order to solve the error caused by the uneven shrinkage of the molded part and the inconsistency between the predetermined shrinkage and the actual shrinkage, one third of the tolerance of the product is generally selected in the manufacture of the crate mould, as the manufacturing tolerance of the mould, the purpose of which is to give the molding process in the future. There is a large room for adjustment to resolve the errors caused by the molding process. Click Dustbin Mould https://www.furnituremould.com/ to learn about more information.