Automatic traction type steel bar pre-straightening device

Abstract

The invention discloses an automatic traction type steel bar pre-straightening device. The automatic traction type steel bar pre-straightening device structurally comprises a machine frame, a riding wheel, a locking traction mechanism and a straightening wheel set, according to the locking traction device, a hydraulic motor drives a roller to rotate to drive a steel wire rope to be wound and unwound, a locking shuttle is assembled at the end part of the steel wire rope, one end of the locking shuttle clamps the end part of a to-be-straightened steel bar through jackscrews. the straightening wheel set is composed of an upper straightening wheel set body and a lower straightening wheel set body which can rotate along with a eccentric shaft to move relatively, the hydraulic motor drives the gear to drive the eccentric shaft to rotate so that it is realized that the upper straightening wheel set body and the lower straightening wheel set body can move in different directions to clamp or loosen a to-be-straightened steel bar, and the hydraulic motor is additionally arranged to drive a driving wheel to drive the steel bar to move forwards and backwards to achieve steel bar pre-straightening. The automatic traction type steel bar pre-straightening device has the beneficial effects that traction, clamping and straightening in the steel bar pre-straightening process are completed through hydraulic drive, the straightening effect adjustment is simple and convenient, the operation is safe and reliable, and the automation degree is high.

Description

technical field [0001] The invention relates to a numerically controlled steel bar bending machine, in particular to a traction pre-straightening device of the numerically controlled steel bar bending machine. Background technique [0002] In the work of the CNC steel bar bending machine, it is necessary to manually pull out the steel bar from the coiled bar pay-off frame and penetrate it into the active traction position of the main machine. At present, the diameter of the coiled steel bar used at home and abroad is getting larger and larger, and The curved radian of the steel bar itself makes it difficult to thread the bar, and it is difficult to manually pre-straighten the steel bar, and it is easy to injure the operator during the straightening and threading process, resulting in low safety and low efficiency. Contents of the invention [0003] The invention provides an automatic traction steel bar pre-straightening device, the purpose of which is to draw the steel bar...

AI Technical Summary

Problems solved by technology

[0002] In the work of the CNC steel bar bending machine, it is necessary to manually pull out the steel bar from the coiled bar pay-off frame and penetrate it into the active traction position of the main machine. At present, the diameter of the coiled steel bar used at home and abroad is getting larger and larger, and The curved radian of the steel bar itself makes it difficult to thread the steel bar, and it is difficult to manually pre-straighten the steel bar, and it is easy to hurt the operator during the straightening and threading process, which is low in safety and efficiency

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