Steel bar straightening machine

Abstract

The invention discloses a steel bar straightening machine. The steel bar straightening machine straightening cylinder and a plurality of inclined rolling wheels which are arranged in the straighteningcylinder and are used for eliminating internal stress of a steel bar, the multiple inclined rolling wheels are arranged on the two radial sides of the steel bar in a staggered mode, the axis of the inclined rolling wheels is arranged at an angle with the axis of the straightening cylinder, the outer peripheral surfaces of the inclined rolling wheels are provided with hemispherical touch protrusions which protrude outwards in the radial direction of the inclined rolling wheels, the axial middle of the inclined rolling wheels is gradually increased towards the radius of the contact protrusionsat the two ends of the inclined rolling wheels, the contact protrusions distributed on the outer peripheral surfaces of the inclined rolling wheels are externally cut into inwards-concave annular cutting surfaces, and the annular sections are arranged coaxial with the inclined rolling wheels. According to the steel bar straightening machine, the internal stress of the steel bar is eliminated through interaction of multiple points with different friction force and torque; and by correction of the multiple inclined rolling wheels located on the two sides of the steel bar, the stress in the steelbar reaches a stress balance state, and the straightening effect of the steel bar is improved.

Description

technical field [0001] The invention belongs to the technical field of hub bearings, in particular to a steel bar straightening machine. Background technique [0002] At present, steel members used in the fields of construction engineering or machinery manufacturing are usually first cut by straightening and cutting the disc-shaped steel bars produced by the steel factory, and then bent into the required shape before application. The current common straightening methods are: 1), use horizontal and vertical pressure rollers to straighten the steel bars, this method cannot effectively straighten the universally twisted steel bars; 2), use the rotating frame to set the rollers to straighten the steel bars , this method is disclosed in the patent document "CN200520102272.9-straightening roller device", and the rollers in the rotating frame can be used to effectively straighten the steel bars in multiple directions, but this method automatically feeds the steel bars and different...

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Problems solved by technology

The current common straightening methods are: 1), use horizontal and vertical pressure rollers to straighten the steel bars, this method cannot effectively straighten the universally twisted steel bars; 2), use the rotating frame to set the rollers to straighten the steel bars , this method is disclosed in the patent document "CN200520102272.9-straightening roller device", and the rollers in the rotating frame can be used to effectively straighten the steel bars in multiple directions, but this method automatically feeds the steel bars and different wire diameters It is inconvenient to straighten the steel bars, and the straightening effect is not ideal

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