A mold core production process for forming high-precision spiral plastic products

Abstract

The invention discloses a mold core production process for forming high-precision spiral plastic products, which comprises the following steps: electroforming production of mold core blanks, detection of mold core blanks, production of processing jigs, primary grinding of mold core blanks Grinding, secondary grinding of core blanks and tertiary grinding of core blanks. Through the above method, the mold core production process for the molding of high-precision spiral plastic products according to the present invention uses electroforming to produce the mold core blank, and processes the core mold for the electroforming mold core through precision five-axis CNC. The high precision determines the precision of the concave spiral structure of the mold core blank, and the inner diameter of the spiral hole is detected with a special detection jig to improve the convenience and accuracy of the detection, and then the mold core blank is checked by the processing jig and the grinding machine magnetic table. The positioning realizes the high-precision grinding of the end face and outer circle of the mold core blank, meets the requirements for the concentricity and verticality of the mold core, and improves the machining accuracy.

Description

Technical field [0001] The present invention relates to a plastic mold technology, and particularly relates to a process for the production of core precision molded plastic spiral. Background technique [0002] With the rapid development of the plastics industry and die manufacturing technology, people living in all kinds of light products have more and more expectations, the scope of application and the demand for plastic products has expanded. A main mold plastic products manufacturing equipment, is the main means to achieve mass production of plastic articles. In the field of high-precision plastic products, mold parts manufacturing techniques have more stringent requirements and challenges. [0003] Precision helical product is a relatively common in the worm gear device, a large molding die such precision screw machining difficulty. Use conventional worm metal material, by machining, machining can easily toothed 0.01mm within tolerance requirements. Since molecular orientati...

AI Technical Summary

Problems solved by technology

Due to uneven shrinkage and inconsistent molecular orientation in plastic injection molding, the accuracy of plastic products fluctuates within a certain range, which requires the processing accuracy of mold parts for molding plastic products to be controlled within a smaller range, and the convex spiral When the structure is reflected in the mold core, it will have a concave shape, which is difficult to realize with conventional manufacturing technology, and it is also difficult to control and detect machining accuracy, which needs to be improved

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