Metal cold-drawing device with automatic unhooking function

Abstract

The invention discloses a metal cold-drawing device with an automatic unhooking function, comprising a rack and a drawing device, wherein the drawing device comprises a clamping device, an unhooking device and a hooking device, wherein the clamping device is fixedly connected to a sliding frame; the unhooking device comprises a cam-crank sliding mechanism with a cam pulling rod, a cam corresponds to a short arm of the crank sliding mechanism, a long arm of the crank sliding mechanism is coupled to the hooking device, and a hook of the hooking device corresponds to a transmission chain; and the rack is provided with a locating gear lever corresponding to the cam pulling rod. The automatic unhooking of the drawing transmission chain is realized by artfully utilizing a cam mechanism. The metal cold-drawing device is simple in structure, small in volume and suitable for being matched with various drawing machines of different sizes; repeatedly making a head is not needed, multiple any-sized drawing operations can be finished through making the head at one step, and the utilization ratio of blanks can be up to over 99%, therefore, the production cost is reduced; and the electric energy is effectively saved, the labor intensity is relieved, meanwhile, the work efficiency is greatly increased, and the enterprise benefits are increased.

Description

technical field [0001] The invention belongs to the technical field of drawing machine equipment, and in particular relates to a metal cold drawing device with simple structure, easy operation, safe and reliable use and automatic decoupling function. Background technique [0002] Cold drawing is one of the common methods of metal processing. Through drawing, the shape and size of metal materials are changed, the surface finish is improved, and the internal structure is dense, so as to achieve the purpose of improving shape, tolerance, surface state and internal quality. The sizing of the prior art drawing equipment depends on the length of the blank, therefore, the blank must be cut off as required and leave a margin. Although the hydraulic method or frequency conversion method is adopted to solve this problem, the equipment investment is too large, which is not conducive to popularization. Moreover, the structure of the equipment is complex and the failure rate is high. I...

AI Technical Summary

Problems solved by technology

Although the hydraulic method or frequency conversion method is used to solve this problem, the equipment investment is too large, which is not conducive to popularization

Moreover, the equipment structure is complex and the failure rate is high

In particular, the hydraulic drawing machine occupies twice the area of ​​other drawing machines, which puts forward higher requirements for the use of the factory, which means higher equipment investment, which is unaffordable for small-scale enterprises

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