Method for discharging waste during punching of automotive interior ornament products and special die

Abstract

The invention discloses a method for discharging waste during punching of automotive interior ornament products. The method is characterized by including the following steps of die assembly and die opening. The die assembly step includes that compressed air is in the closed state when the die is in the die assembly punching state, a cylinder drives a reverse punch to conducting punch to overcome blanking force required by a material, and an upper die drives a punch to punch the material. The die opening step includes that after the die is opened, an electromagnetic valve is electrified, the compressed air blows waste punched by the reversed punch, and the waste punched by the punch is discharged through a blanking hole vertically corresponding to the punch. The special die comprises the upper die (1) and a lower die (2), a cylinder (3) and the reverse punch (4) are arranged on the lower die (2), the punch (6) is arranged on the upper die (1), and the punch (6) corresponds to the blanking hole (7) in the lower die (2), and a compressed air cavity (5) is arranged on the upper die (1) at the position corresponding to the punch (4). Power for ejecting the waste is changed to be the compressed air, an air pressure adjusting valve is added on the outer portion of the compressed air, the waste can be blown by the sufficient air pressure, failure is avoided, the die is not required to be disassembled during maintenance, and maintenance difficulty is avoided.

Description

Technical field: [0001] The invention relates to the technical field of mold waste discharge, in particular to a method for discharging waste during punching of automotive interior parts products and a special mold; it is suitable for the punching direction and reverse punching direction to be concentrated on one automobile interior part product . Background technique: [0002] In recent years, the styles of automobiles have been continuously introduced. The interior products of automobiles are not only more and more beautiful in appearance, but also more and more perfect in function. The structure and shape of interior parts are becoming more and more complicated. For the structure with punching hole, the punching is realized through the second action by using the oblique core pulling or cylinder, and the waste is discharged through the vertical blanking hole. However, due to the increase in the functions of the interior parts, there is a design that concentrates on one pr...

AI Technical Summary

Problems solved by technology

[0008] The invention mainly solves the problems of the existing punching dies, such as high equipment requirements for waste discharge, easy failure of waste ejection, time-consuming and labor-intensive mold maintenance, etc.

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