stamping die

Abstract

The invention discloses a stamping die which comprises an upper cylindrical die shell (1) and a lower punch (2). The upper cylindrical die shell (1) is provided with a blanking passage. A rotary disc (4) is rotatably disposed in the upper cylindrical die shell (1) in a matched manner. A plurality of circular through holes (5) are formed in the rotary disc (4). A second cylindrical pit (7) is formed in the upper end face of the lower punch (2). A hexagonal prism protrusion is disposed at the bottom of the second cylindrical pit (7). A discharge hole vertically penetrating the lower punch (2) is formed in the lower punch (2). The lowermost end of the blanking passage is communicated with one of the circular through holes (5), the second cylindrical pit (7) faces directly to another circular through hole (5), and the discharge hole faces directly to another circular through hole (5). An ejection ball for ejecting stamped screws into the discharge hole is disposed on the upper cylindrical die shell (1). By the stamping die, the stamping process is fast, efficient, safe and convenient.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a stamping mold for stamping screws. Background technique [0002] The stamping die of the traditional stamping screw includes a lower die and an upper die. The upper end of the lower die is provided with a blind hole that matches the shape of the screw, that is, the lower die cavity. The lower end of the upper die is provided with cylindrical pits. The top is provided with hexagonal prism protrusions, and the cavity between the cylindrical recess and the hexagonal prism protrusions constitutes an upper die cavity that matches the shape of the head of the hexagon socket head screw, and the centerlines of the upper and lower die cavities coincide. Fix the lower mold and put a round bar into the lower mold cavity. The length of the round bar is greater than the height of the lower mold cavity. The upper mold and the lower punch are fixed, and the lower punch is driven to make the two...

AI Technical Summary

Problems solved by technology

[0003] The stamping dies of the prior art have the following defects: each time a screw is punched, five steps of mold opening, loading, stamping mold clamping, mold opening, and demoulding need to be carried out separately, and as many screws as needed to be stamped need to be repeated as many times as necessary. The speed is slow and the efficiency is low, and continuous stamping and forming cannot be performed; secondly, because the round bar is placed between the upper mold and the lower mold when discharging, in this way, if the mold opening range is too small before discharging and when the mold is opened, two The distance between the molds is not enough, it is difficult for people to put the round bar in, but if the mold opening range is too large, the stroke of the lower punch will be increased when the mold is opened and closed, which will consume more time and further reduce the efficiency. There is a certain degree of danger in discharging the material between the two molds. If the lower punch is accidentally activated, it may hurt the hands; moreover, because the opening of the lower mold is facing upwards, the demoulding process is too inconvenient

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