Wire drawing machine drum rim manufacture technique

Abstract

The invention relates to a drum wheel ring for a wire-drawing machine. The external circle working face of the drum wheel ring is provided with a nitride hardening surface layer of which the surface hardness can reach 1,100 to 1,200 Hv, thus the drum wheel ring has good abrasion resistance and long service life which are equivalent to that of the drum wheel ring with tungsten carbide coated on the surface, but the manufacturing cost of the drum wheel ring is just one half of that of the drum wheel ring with tungsten carbide which is coated on the surface; and the external circle working face of the drum wheel ring is V-shaped and consists of two opposite inclined planes which are arranged symmetrically, thus the external circle working face is advantageous for axial sliding and can be reused by turning over.

Description

technical field [0001] The invention relates to wire and cable manufacturing equipment and its manufacturing process, in particular, a drum rim for a wire drawing machine and its manufacturing process. Background technique [0002] The wire and cable manufacturing process is to make copper, aluminum, aluminum alloy and other round metal rods into various specifications of bare wires by means of drawing through a wire drawing machine, and then wind them onto a reel for twisting in the next process. Existing wire drawing machines generally use the wire drawing die to reach the design specifications after 8 to 13 drawing passes. The pulling force is distributed by the main motor to the drum behind each wire drawing die through gear distribution, and the wire is tightly wound on the drum. The drum rotates, driving the wire to be pulled through the mold, and the wire diameter gradually becomes thinner. During the drawing process, the wire has two kinds of motion on the drum, one...

AI Technical Summary

Problems solved by technology

[0005] In addition, in the existing drum rim, the outer circular working surface is designed to be linear, that is, the drum rim groove is a flat-bottomed groove, and the bottom surface of the groove is a cylindrical surface, which is not conducive to the axial sliding of the wire coil. When the sliding is not smooth, the wire There may be overlapping windings, which need to be discovered by the operator in time and dealt with quickly, otherwise it will cause production interruption

Moreover, when the wire is wound, it is always biased towards one side of the wheel groove, only occupying half of the wheel groove, and the other half is free. When the used half is worn out, it is replaced, which is also a waste

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