Stamping die of shell

Abstract

The invention discloses a stamping die of a shell. A shell blank is horizontally put on the upper surface of a die bottom block, is positioned and heated to be softened, an upper die stamps downwards, a stamping head drives the die bottom block to move downwards firstly, when the die bottom block is in contact with a die wall bottom plate, the die bottom block is just fitted and spliced with a die wall block so as to form a complete concave die, the stamping head is propped against a first layer and a second layer to move downwards continuously, then a first spring and a second spring are compressed, a turnup edge is formed on the shell blank, when the first layer and the second layer descend to a certain extent, the die wall bottom plate pushes a die frame bottom plate to drive a die frame block to move downwards along a vertical block, the die frame block drives a sliding block to move downwards relying on an inclined block, at the same time the sliding block moves inwards through a sliding track based on the horizontal inward thrust of the inclined block, when a small neck part corresponds to the sliding block, the sliding block props the turnup edge of the shell blank into the small neck part against a step part between the end and the small neck part, thereby forming an inverted cover edge. The stamping die can smoothly and efficiently form inverted cover edges of shells, and is novel and reasonable in structure and high in practicability.

Description

technical field [0001] The invention relates to the field of molds, in particular to a stamping mold for a casing. Background technique [0002] The structure of the stamping die is known, such as Chinese invention patent CN201110091962.9 discloses a stamping die, including: base, several guide rods, lower die, upper die, platform pressure head, top plate, connecting block, guide rod and lower die set On the base, the upper mold is set on the lower mold, and the upper mold and the lower mold are respectively provided with material cavities. In the rod hole, the connecting block is set on the top of the top plate, the platform pressure head is set under the top plate and its shape matches the pressure head hole, and the pads and adjustment pieces are arranged in turn between the top plate and the platform pressure head. A guide sleeve is arranged in the guide rod hole on the top plate, and the upper end of the guide rod is arranged in the guide sleeve. The top of the connec...

AI Technical Summary

Problems solved by technology

This invention patent is mainly used for the stamping and forming of mobile phone shells. The above two invention patents are like other common stamping dies on the market. The structural principles are roughly the same, so the functions and effects

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