Work process: The coil bars are led out through the wire laying frame → The straightening mechanism (composed of multiple sets of straightening blocks) eliminates the internal stress of the steel bars → The traction mechanism (driven by a servo motor to drive the traction wheel) feeds the material to the set length → The bending mechanism (rotating the bending shaft + positioning stop block) completes the angular bending → The cutting mechanism (hydraulically driven blade) performs precise cutting.
Key technologies: It adopts multi-axis linkage control, allowing the bending shaft to rotate 360°. Combined with a programmable logic controller (PLC), it can store over a hundred types of stirrup graphics and support one-click processing of complex shapes (such as rhombic and polygonal shapes).
Sawing, Threading, and Grinding Production Line: The "All-rounder" for Steel Bar End Processing
Sawing unit: The steel bars are fixed by a hydraulic clamping device. The alloy saw blade cuts at a high linear speed of 30–50 m/min. The saw blade cooling system (spray coolant) reduces the temperature and extends service life, ensuring a smooth cut without burrs.
Threading unit: It adopts the rolling threading process. Through the rotating threading die, the end of the steel bar is rolled and shaped. Compared with traditional cutting threading, thread strength is increased by 20%, and processing efficiency is tripled.
Grinding unit: Composed of multiple sets of grinding wheels, it grinds the ends after threading from different angles to remove burrs and oxide scales, ensuring sealing of connections. The grinding accuracy can be controlled within Ra1.6 μm.
This equipment is specially designed for the automatic forming of steel cages in pile foundation, bridge pier, and other projects. It can replace traditional manual binding, achieving precise positioning and efficient connection of main bars and stirrups. It is essential for modern steel bar processing and distribution centers and prefabricated building factories.
Adopting an integrated process of rotational forming + automatic welding:
Main bar feeding: Several main bars are evenly arranged and fixed along the circumference of the equipment, driven to rotate synchronously through the active rotation mechanism.
Stirrup winding: The stirrups are automatically conveyed by the wire feeding mechanism and tightly wound around the outside of the main bars at the set pitch.
Welding and forming: The high-frequency welding head operates synchronously with the stirrup feed, automatically welding the intersection points of the main bars and stirrups to form a regular steel cage.
Straightening and Cutting Machine: Core Equipment for "Straightening and Shaping" Steel Bars
Straightening principle: The reinforcing bars pass through a straightening cylinder composed of 6–8 straightening blocks, arranged in a spiral pattern. By adjusting the spacing and pressure of the straightening blocks, the bending stress of the reinforcing bars is gradually eliminated, achieving straightness correction (straightness error ≤1 mm/m).
Cutting control: A photoelectric encoder precisely measures the length of the reinforcing bars. Once the set value is reached, the PLC issues an instruction, and the hydraulic cutting knife rapidly descends to cut the reinforcing bars. The cutting response time is ≤0.2 seconds, ensuring a length error of ≤±1 mm.