Automatic Coil - Rebar Stirrup Bender

1. Mechanical feature

• General system
  The particular patented straightening system, constituted by sets of horizontal and vertical rollers that can be automatically adjusted, is integrated with 4 pulling rollers that eliminate the torsion, which is driven by servomotor, thus ensuring a perfect straitening accuracy.
• Bending and cutting system
  The bending and cutting unit, driven by servomotor, is equipped with turning and retractile bending pins. After received a signal from computer, the cutting unit starts and cut in the twinkling, guaranteed the tolerance of the stirrup.
• Rod feeding
  The feeding system from coil of this model, for single or double strand, by means of two motorized and braked pay-offs, is controlled by computer to adjust the feeding speed. A particular patented designed spring unit with each pay-off can reduce the resistance and instability.
• Components of CNC & PLC
  For this CNC stirrup bender, many electric and pneumatic parts are imported from Japan and German, such as PLC, servomotor and reducer.
  a). A stirrup available to the most 30 bends; 50 different stirrups parameter can be stored in the computer memory and also can be automatically recalled and used according to the wire to be processed.
  b). The machine needs no pause and stop while processing stirrups of any shapes and adjusting bending angle.
  c). With self-diagnosis, there are two standard exit, through which the electric encoder can be joined.

2. Technology comparison

• Stirrup processing
  Stirrup is formed step-by-step by simple machine from coiled wire, according to the following phases: straitening, bending and cutting.

• Working efficiency
  Automatic stirrup bending machine, controlled by CNC, quickly and automatically activates as follows: measuring, straitening, bending and cutting, with high efficiency, instead of 20~30workers.