Straightening and wire feeding device of prefabricated reinforced concrete pipe reinforcement cage seam welder

Abstract

The invention discloses a straightening and wire feeding device of a prefabricated reinforced concrete pipe reinforcement cage seam welder. The straightening and wire feeding device of the prefabricated reinforced concrete pipe reinforcement cage seam welder is provided, is compact in structure, organically combines wire feeding and straightening without mutual interference, and avoids secondary deformation in the effective straightening and wire feeding process. The straightening and wire feeding device comprises a case, a driving motor, a belt transmission group and a guide roller group; a tension spring is arranged on a floating box, one end of the tension spring is connected with a top cover of the case, and the other end of the tension spring is connected to the corner, away from a hinge shaft, of the top of the floating box; and a pressing mechanism is further arranged at the top of the floating box and drives the floating box to move downwards, so that a floating gear in the floating box is meshed with a main transmission gear. According to the straightening and wire feeding device, the end feeding work can be realized; and action interference does not occur between the twoworking conditions, and secondary deformation is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of concrete product processing equipment, in particular to a straightening wire feeding device arranged in the front of a steel cage roll welding machine in a prefabricated reinforced concrete pipe. Background technique [0002] The prefabricated reinforced concrete pipe needs to prepare the steel cage as the pipe skeleton in advance. The structure of the steel cage is a number of straight bars surrounding the cylinder. After the straight bars are arranged on the steel cage roll welding machine; The ring reinforcement is welded at the intersection of the ring reinforcement and the straight reinforcement to form a complete steel cage structure. What adopted in its processing process is the seam welding machine in the prior art, and the seam welding machine can fix some straight ribs on it and rotate. When winding the ring bars (taking 36 straight bars on the circumference of the cylinder as an example), the ...

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Problems solved by technology

However, there are also many defects of its own, such as warping (bending), pits, meat loss, scarring, skin warping, and small folding of the strip, etc. These defects will cause seam welding machine imports during processing There are job-hopping and "derailment" in the channel, which makes the processing impossible. The second is that the final pipe has an uneven internal reinforcement cage structure, resulting in defects in the pipe body.

At the same time, during the straightening process, the straightening roller group always maintains a certain "matching pressure" on the steel bar. If the wire is forced to be fed by the wire feeding mechanism, and the hardness of the wire is not enough (the cold-rolled steel bar has sufficient hardness) , the hardness of the hot-rolled steel bar is low), which can easily cause the secondary bending deformation of the wire

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