Forming die for large hoop

Abstract

The invention discloses a forming die for a large hoop, and relates to the technical field of dies. The forming die comprises an upper die and a lower die; the section of the upper die is in a U shape, and the width is gradually increased from top to bottom; the lower die comprises a fixed block; the fixed block is rotatably connected with two L-shaped modules; the two L-shaped modules are oppositely arranged, and fit the side surface of the upper die; the upper die comprises a wedge block; pin shafts are fixed to the upper surface of the wedge block side by side; the upper ends of the pin shafts penetrate through an upper padding plate, and springs sleeve the upper ends of the pin shafts; two side surfaces of the wedge block are slidably connected with side modules; bending blocks are fixed to the upper ends of the side modules; and the upper surfaces of the bending blocks are slidably connected with the lower surface of the upper padding plate. By arranging the two L-shaped modules,through pressing of the upper die, the L-shaped modules are used for laterally extruding the hoop, and the problem that the production efficiency is affected due to low adaptability of an existing lowdie is solved; and the upper die is arranged as the wedge block and the two-side modules, and the problems that an existing hoop is required to be taken down manually after being formed, and the production efficiency is low are solved.

Description

technical field [0001] The invention belongs to the technical field of moulds, in particular to a molding die for large hoops. Background technique [0002] A hoop is a component that hugs or hoops another material with one material. It belongs to a fastener and has a wide range of applications in industry. The arc-bent shape of the hoop is mainly determined by the mold. The design specifications of the hoop die and the materials selected directly affect the product quality of the hoop from the die. Most of the existing hoops are semicircular, and the hoop die usually adopts a lower mold and an upper mold corresponding to the radian, and the flat iron is bent into a desired shape by mutual punching of the upper mold and the lower mold. [0003] However, some existing hoops with special shapes, such as U-shaped hoops with an opening gap smaller than the width, will be stuck on the upper die after stamping and forming, and need to be removed manually, resulting in low product...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a molding die for large hoops. By setting two L-shaped modules, the upper mold is pressed down, and the L-shaped modules are rotated to squeeze the hoop sideways, which solves the problem of the existing lower The problem of low mold adaptability that affects production efficiency; by setting the upper mold as a wedge block and two side modules; solves the problem of low production efficiency that needs to be removed manually after the existing hoop is formed

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