Fast steel bar straightening machine and method for straightening steel bars using it

A technology for straightening machine and steel bar, applied in the field of steel bar processing, can solve the problems of poor straightening effect, adverse effects on mechanical properties of reserved steel bars, low straightening efficiency, etc., achieves simple structure, strong equipment versatility, and avoids performance damage Effect
CN104959491BActive Publication Date: 2017-03-15NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
Publication Date
2017-03-15

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Abstract

The invention provides a fast steel bar straightener and a method for utilizing the straightener for straightening steel bars, relates to the technical field of steel bar machining, and aims at the problems that when a reserved steel bar straightening method frequently used in an existing reverse construction method is used, the straightening efficiency is low, the straightening effect is poor, and the adverse effect on the mechanical property of the reserved steel bars is caused. The straightener comprises a sleeve and a hydraulic device which are communicated. At least two hydraulic jack assemblies are arranged on the inner wall of the sleeve. Each hydraulic jack assembly is provided with three separated hydraulic jacks uniformly distributed in the radial direction of the axis and communicated with the hydraulic device. The separated hydraulic jacks can be ejected in under the effect of the hydraulic device, so that the steel bars penetrating through the sleeve are hooped and straightened. The method comprises the steps that 1, the reserved steel bars penetrate through the sleeve so as to be enclosed among the separated hydraulic jacks; 2, the reserved steel bars are extruded, hooped and straightened gradually by the separated hydraulic jacks; 3, the step 1 and the step 2 are repeated to gradually straighten the reserved steel bars from the fixed ends to the free ends.
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Description

technical field

[0001] The invention relates to the technical field of steel bar processing, in particular to a fast steel bar straightening machine used in the reverse method of building foundation engineering and a method for straightening steel bars using the machine. Background technique

[0002] In the reverse construction process, in order to realize the connection with the subsequent structure, it is often necessary to reserve a certain length of steel bars in the construction process of the previous structure, such as the horizontal reserved steel bars or vertical shear wall structures of the intake structure constructed by the reverse method The vertical reserved reinforcement. Such as figure 1 As shown, these reserved steel bars 1 temporarily exposed on the outside of the component will inevitably be bent by the construction machinery on site, or sometimes due to the needs of construction safety, site layout and steel bar protection, the reserved steel bar 1 needs...

Claims

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