Material supporting mechanism for preventing drooping of screw reinforcing stirrup on reinforcing steel bar hoop bending machine

Abstract

The invention discloses a material supporting mechanism for preventing the drooping of a screw reinforcing stirrup on a reinforcing steel bar hoop bending machine. The material supporting mechanism comprises a bending mandrel and a bending head of the steel reinforcing bar hoop bending machine as well as a bending main shaft, wherein one end of the bending main shaft is eccentrically provided with a bending main shaft eccentric arm and a bending shaft; the material supporting mechanism also comprises a material supporting frame, the middle part of the material supporting frame is a bending inner cavity, the bending shaft is arranged in the bending inner cavity, a bending shaft threaded end of the bending shaft penetrates through a material supporting frame installation hole of an inner side plate on one side of the material supporting frame to be tightened into a screw hole of the bending main shaft eccentric arm, and a step surface on one side of the bending shaft compresses and fixes the inner side plate of the material supporting frame onto the side surface of the bending main shaft eccentric arm; the other side of the bending inner cavity is a material supporting plate for supporting a raw material reinforcing steel bar. The material supporting mechanism has the beneficial effects the product of the hoop bending machine with large gravity drooping such as the screw hoop can be guaranteed, the drooping of the reinforcing steel bar on the working part of the bending shaft is prevented, the situation that the bending shaft of the screw hoop cannot be bent to the reinforcing steel bar due to the gravity drooping can be avoided, the quality of the screw hoop product can be guaranteed, and the production efficiency can be improved.

Description

technical field [0001] The invention relates to a steel bar hoop bending machine, in particular to a material supporting mechanism for preventing spiral hoops from sagging on the steel bar hoop bending machine. Background technique [0002] The steel bar hoop bending machine is an automatic steel bar processing equipment that bends the steel bar into stirrups. The prior art steel bar hoop bending machine includes: a straightening traction mechanism, a bending mechanism and a shearing mechanism. [0003] figure 1 It is the front view of the bending mechanism of the hoop bending machine in the prior art when bending the spiral stirrup. The figure shows that the stirrup is sagging due to its own weight, and the bending axis cannot bend the steel bar; Figure 1a yes figure 1 Total D-direction view. [0004] Such as figure 1 , figure 2 As shown, the bending mechanism includes: an axially telescopic bending mandrel 4 and an elbow 3 fixed on the end face of the bending mandre...

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Problems solved by technology

[0005] The bending mechanism of the prior art steel bar bending machine has the following defects: when bending the spiral stirrup, the bending mandrel 4 of the bending mechanism needs to be in a vertical state, so that the quality of the finished stirrup can be guaranteed

Due to the sagging phenomenon caused by the self-weight of the stirrup, the steel bar passing through the elbow 3 is pulled down by the finished stirrup, so that the bending shaft 2 in the eccentric position cannot touch the steel bar, so the steel bar cannot be bent

Therefore, the bending mechanism of the prior art steel bar bending machine cannot complete the bending process to the spiral stirrup

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