A method for opening a three-way pipe mold

Abstract

The invention provides a mold opening method of a three-way pipe mold. The mold opening method comprises the steps of analyzing the function requirement, the use environment and the technical indexes of a three-way pipe plastic piece, and determining plastic materials used for injection molding; determining process parameters for injection molding; determining the types and the positions of sprues of the three-way pipe plastic piece; according to the type and the specification of an injection molding machine and the shape structure of a three-way pipe body, determining the structure of a three-way pipe injection mold; determining the demolding inclination of the three-way pipe plastic piece; according to the structure of the three-way pipe mold, determining the quantity of parting surfaces and the quantity of cavities; selecting and checking an injection machine; selecting a mold frame and checking the distance among pulling rods of the injection machine; determining the structure and the shape of a casting system; determining the structure of the formed three-way pipe; checking the strength and the rigidity of the three-way pipe mold; determining the structure of an exhausting system; determining the structure of a mold-assembling guide mechanism; determining the structure of the mold frame and selecting a corresponding standard piece; determining the structure and the size of a temperature adjusting system. The mold opening method realizes a standardized, miniaturized and high-quality plastic mold.

Description

technical field [0001] The invention relates to the technical field of plastic molds, in particular to a mold opening method for a three-way pipe mold. Background technique [0002] At present, the plastic mold industry is developing very rapidly, and the technical level is constantly improving. High-tech molds such as high-precision molds, hot runner molds, gas-assisted and high-pressure injection molding molds have been developed and applied. Modern plastic products have higher requirements for surface finish and molding time, which also promotes the development of plastic molds. Taking the TV plastic shell mold as an example, the precision of the mold has been increased from 0.05 to 0.1mm to 0.005 to 0.01mm, the manufacturing cycle has also been shortened from 8 months to 2 months, and the service life of the mold can also be made by 10 months. 10,000 to 200,000 products can be extended to 600,000 products. From the development of plastic molds for TV casings, we can se...

AI Technical Summary

Problems solved by technology

[0003] With the continuous deepening of the above-mentioned needs, the traditional mold opening methods and means of plastic molds have gradually been unable to adapt to the development of the industry.

Due to the lack of standardized process operations and process control in the traditional mold opening method, it leads to repeated manufacturing of purchased parts that should be standardized, which prolongs the mold production cycle, is not conducive to maintenance, and is not suitable for modern production methods with multiple varieties and small batches

Due to the lack of standardized specifications in the existing mold opening methods, the quality of the obtained plastic molds is also affected, and it is difficult to meet the manufacturing requirements of large, precise, complex and long-life molds

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