Pressure flat bending device

Abstract

The invention discloses a pressure flat bending device which comprises a baseplate, a triangular plate fixedly connected on the upper surface of the baseplate, and a guide plate movably connected on the front surface of the triangular plate. The front surface of the triangular plate is perpendicular to the baseplate, a slider is movably connected below the guide plate, the lower surface of the guide plate and the upper surface of the slider incline towards the direction of the triangular plate, and a template is arranged on the lower surface of the slider. The guide plate and the slider are in inclination contact, and a to-be-bent steel batten or angle bar and flat-bulb steel are stressed by bending force in the horizontal and outward direction and by force in the vertical and downward direction, so that the to-be-bent steel batten or angle bar and the flat-bulb steel are prevented from wrinkling and deforming. Since the whole bending process is a pure physical process and a crystal structure of the to-be-bent steel batten is not changed, no damage is caused to base metal.

Description

technical field [0001] The invention relates to a pressure flat bending device, which belongs to the field of bent steel bending machines. Background technique [0002] In the process of manufacturing steel structures, there are often many steel strips or section steels that need to be flat-bent into various shapes, or bent steel strips that need to be straightened. In the existing bending technology, the flat bending and straightening of steel strips all use pyrotechnic ovens to heat the steel plates, and utilize the characteristics of thermal expansion and cold contraction of steel materials for flat bending or straightening. This method has high cost and low efficiency, and has certain damage to the base material, which affects the quality. [0003] If a press is used for conventional bending, the contact surface between the steel strip and the plane is small, and the erection is unstable, and the steel strip is easily twisted and deformed after being pressed vertically ...

AI Technical Summary

Problems solved by technology

This method has high cost and low efficiency, and has certain damage to the base material, which affects the quality.

[0003] If a press is used for conventional bending, the contact surface between the steel strip and the plane is small, and the erection is unstable, and the steel strip is easily distorted and deformed after being pressed vertically and horizontally.

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