Manufacture method and device for steel wire spiral filaments

Abstract

The invention discloses a manufacture method and device for steel wire spiral filaments. In the method, a drive roller is used as a fulcrum, steel wires continuously pass through an arc surface of the drive roller, bending forces F1 and F2 are applied to the steel wires at two sides of the drive roller so that the steel wires are bent with an enveloping angle of beta on the arc surface of the drill roller, and when the steel wires pass through the force applying point F2 and then can not restore to the original shape, a permanent bending diameter phi more than the diameter alpha of the drive roller is generated. The method is skilled and reasonable so that the steel wire spiral filaments according with the requirement of a braiding machine can be manufactured through a simple-structure device without purchasing a production device with higher price, in the manufacture process, the steel wires are not subjected to thermal treatment, thus original structures inside the steel wires are kept, and the advantages of high strength, low manufacture cost and convenience for operation are obtained. The invention provides a key technical guarantee for realizing braiding of a steel wire gauze.

Description

technical field [0001] The invention relates to a method for preparing a steel wire helical wire and a device used therefor, and belongs to the technical field of mine safety material manufacturing methods and equipment. Background technique [0002] In terms of mine safety and security, support nets are widely used to provide safe support for roadways and mining working faces in mines, so as to ensure the personal safety of mines and miners. The support net is the most commonly used support method in mine operations. [0003] The most common support net currently used is a diamond-shaped net made of iron wire. This wire rhombic mesh has a simple structure and low processing cost, and has a very wide market. However, the load-bearing capacity of the wire rhombic mesh is small. If you want to increase the load-bearing capacity of the support net, you can only increase the diameter of the iron wire or replace the iron wire with a material with better strength. But how to imp...

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Problems solved by technology

But after using steel wire instead of iron wire, when the steel wire is wrapped around the steel pipe and cut off, the steel wire will all bounce off at once and cannot be neatly arranged on the steel pipe. Therefore, the method of winding spiral wire with iron wire is not suitable for steel wire, and cannot Steel wire helical wire required for braiding machines

If special processing equipment is purchased to process steel wire spiral wire, due to the complex structure and relatively high price of the special equipment, it will lead to an increase in equipment investment and production costs, resulting in an increase in the total production cost and sales price

If we learn from the manufacturing method of springs, first anneal the steel wire, and then quench after the winding is completed; however, a series of heat treatment processes such as annealing and quenching will inevitably increase the production cost. In addition, the tensile strength of the steel wire will also increase after heat treatment. certain influence

It is precisely because of the above reasons that although everyone knows that the strength of the steel wire support net is much higher than that of the iron wire support net, it is difficult to use a simple method and device to make a steel wire helix for the braiding machine at a production cost lower than that of the iron wire. Wire is the key to the technology of steel wire support mesh that has not been applied

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