An effective anti-eccentric load cold extrusion cylinder tool for reinforcing bars
By adopting an extended upper and lower jaw design and a damping cylinder structure in the cold extrusion tool for steel bars, the problem of jaw eccentricity was solved, construction efficiency and tool life were improved, and energy consumption was reduced.
CN224432986UActive Publication Date: 2026-06-30QINGDAO XINLINGYU STEEL STRUCTURE ENGINEERING CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO XINLINGYU STEEL STRUCTURE ENGINEERING CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Existing cold-extruded rebar connection tools commonly suffer from uneven jaw load during use, leading to workpiece deformation, tool wear, unstable connection quality, and increased energy consumption.
Method used
The design features an extended back of the upper and lower jaws, combined with an adjustable pressure damping cylinder. The damping cylinder provides a reaction force to achieve torque balance and prevent the jaws from flipping outward.
Benefits of technology
It effectively prevents jaw overload, improves construction smoothness, extends tool life, increases pressure utilization, and reduces energy loss.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224432986U_ABST
Abstract
This utility model relates to the field of cold extrusion technology for reinforcing bars, and discloses an effective anti-eccentric load cold extrusion pushing cylinder tool for reinforcing bars, comprising: an outer sleeve, an upper jaw provided at the upper part of the outer sleeve, a cylinder body fixedly fitted inside the outer sleeve, a lower jaw provided at the lower part of the outer sleeve, the center of the lower jaw being threadedly connected and fixed to the lower part of the cylinder body, an outer sleeve fixed end cap provided at the lower part of the cylinder body, the back of the upper and lower jaws being extended on the side away from the jaws, a damping cylinder being fixedly installed on the back of the upper jaw, and the bottom of the piston rod of the damping cylinder being fixedly connected to the extended back of the lower jaw; by adopting the design of extending the back of the upper and lower jaws, and with the addition of an adjustable pressure damping cylinder, the problems of workpiece deformation and tool jamming are solved, the construction smoothness is improved, the pressure of the main cylinder is not excessively consumed, and the pressure utilization rate is significantly improved.
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