A reinforcing bar straightening machine for tunnel segment production
By designing a rebar straightening machine suitable for tunnel segment production, the machine utilizes the rotational cooperation of a threaded rod and a threaded cylinder to clamp, position, and straighten rebars of different diameters. This solves the problems of complex structure and poor adaptability in existing technologies, reduces costs, and improves applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINING POLYMERIZATION NEW MATERIAL CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-24
AI Technical Summary
Existing rebar straightening machines have complex structures, high operating costs, and poor adaptability to rebars of different diameters, making it difficult to meet the diverse needs of tunnel segment production.
A rebar straightening machine including a workbench, a threaded rod, and a threaded cylinder was designed. By rotating the threaded rod and the threaded cylinder together, the machine can clamp, position, and straighten rebars of different diameters. The clamping assembly and pressure rollers are used to position and straighten the bent parts of the rebars.
The simplified device structure reduced operating costs, improved applicability to steel bars of different diameters, and enhanced production efficiency.
Smart Images

Figure CN224542979U_ABST