Traditional straighten-and-cut machines are used to produce wires, strips, rebar, or rods that are straight and cut to length. Simultaneously, independent straightening machines are introduced at the entry of wire forming machines and spring coilers. The job of each straightening process is to remove the cast found in the rod, bar, or wire (produced during the spooling or coiling process). Straighten and cut wire restores rods, strips, bars, and wire to their original straightness.
After materials have been wound onto a spool or wrapped into a coil, wires no longer lay flat. They have great difficulty remaining straight when they are fed into a machine or unwound. To rectify problems associated with materials not lying flat or straight is fixed by taking out the loop or cast of the material. Without removing cast or loop, wires, rods, and strips become more difficult to process than straighten and cut wire.
When straightening wires, there are three commonly used methods of straightening. These include:
- Rotating straighteners
- Roller straighteners
- Oscillating straighteners
Straighten and cut wire
Of the three methods mentioned above, roller straighteners are amongst the most used methods. Materials pass through opposing rollers in multiple planes. The machine uses oscillating and rotating straighteners with bushing, dies, and rollers. Depending on all factors of the job at hand, the amount, size, and spacing of rollers vary. The number of rollers is often three or more and can even be more than two dozen.
Beyond straightening and cutting wires, the machines also offer the benefit of providing stress relief and inducing a new cast into the material. Implementing the correct roller straights configuration is vital to getting the job done right.
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