Pre-buried channel arc bending machine

Abstract

The invention provides a pre-buried channel arc bending machine and relates to the structures of arc bending machines. The pre-buried channel arc bending machine comprises a workbench connected with a drive assembly, a first forming assembly, a second forming assembly, a high-speed rotary saw and a discharging supporting assembly. The drive assembly is arranged at the feeding portion of the workbench and comprises drive rolls perpendicularly arranged on the tabletop of the workbench. The first forming assembly is arranged on the discharging side of the drive assembly and comprises multiple pairs of first forming rolls perpendicularly supported on the tabletop of the workbench. The second forming assembly is arranged on the discharging side of the first forming assembly and comprises multiple pairs of second forming rolls perpendicularly supported on the tabletop of the workbench. The discharging supporting assembly is arranged on the discharging side of the second forming assembly and comprises multiple carrier rolls arranged parallel to the tabletop of the workbench. The high-speed rotary saw is arranged on the feeding side of the discharging supporting assembly. By the adoption of the pre-buried channel arc bending machine, raw materials are saved, and the curvature and the quality of a pre-buried channel are stable.

Description

technical field [0001] The invention relates to the structure of an arc bending machine, in particular to an arc bending machine that bends the pre-buried channel used for the concrete segment of a subway tunnel into an arc consistent with the segment mold and ensures complete fit with the concrete segment mold . Background technique [0002] Pre-buried channels: poured into concrete in a pre-buried way, used for fixing catenary, communication signals, power equipment and pipelines in places with concrete structures such as subway tunnels and bridges. [0003] Bending the workpiece into a pre-embedded channel is now more common: 1. Using a three-roller arc bending machine, because the workpiece is long (up to more than 3 meters), the curvature requirements cannot be guaranteed at all; 2. Using a tire smaller than the size required by the drawing The membrane is bent, and the rebound of the material after bending makes it close to the curvature required by the drawing, and t...

AI Technical Summary

Problems solved by technology

[0003] Bending the workpiece into a pre-embedded channel is now more common: 1. Using a three-roller arc bending machine, because the workpiece is long (up to more than 3 meters), the curvature requirements cannot be guaranteed at all; 2. Using a tire smaller than the size required by the drawing The membrane is bent, and the rebound of the material after bending makes it close to the curvature required by the drawing, and the quality is very unstable. Because the clamps are used at both ends when the membrane is used for bending, the clamping part is sawed off after bending. The method is a waste of work and energy, and the utilization rate of raw materials is low

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