Reinforcing wire traction wheel apparatus of automatic wire rod aligning cutting machine

Abstract

The invention relates to a wire rod transporting device of a wire rod aligning and cutting machine, in particular to a reinforcing steel traction wheel device of an automatic wire rod aligning and cutting machine, which comprises an upper pressure wheel bearing sleeve, a middle connecting rod, a fixing sleeve, a dome column, an upper pressure wheel shaft, an upper pressure traction wheel, a principal axis traction wheel, a principal speed down gear shaft, a side hung fixing screw, a bar-shaped steel plate fixing sleeve, an upper pressure wheel bar-shaped steel plate, a hand crank impacting screw arbor, a screw arbor hand grip and a driving axle reduction gear, etc. The invention has the advantages that the design of the upper pressure wheel bar-shaped steel plate and the hand crank impacting screw arbor improves largely the pressure elasticity and the adjustment force of the steel plate, and has the function of the pressure value of the pressure wheel adjusting arbitrarily; the structure is simple, the service life is long, the processing cost is low, the production efficiency is high, and the operation is saved. The principal axis traction wheel and the principal speed down gear shaft are directly arranged at the driving axle reduction gear, to reduce the middle link of the side hung gear, and the processing cost is reduced. The bearing sleeve fixed mount is designed in a return-back moving type, and the space for moving up and down is larger.

Description

technical field [0001] The invention relates to a wire conveying device for a wire straightening and cutting machine, in particular to a steel bar traction wheel device for an automatic wire straightening and cutting machine. Background technique [0002] The fixing and moving up and down device of traction wheel and bearing sleeve is one of the important parts on the automatic wire straightening and cutting machine. At present, the wire straightening machines produced by most manufacturers in my country are 4-8, 4-12, and 4-14 types, which are usually composed of a motor part, a reduction transmission gear device, a wire conveying device, a straightening part, and a cutting part. composition. Among them, the wire conveying device is composed of a front pressing traction wheel and a main shaft traction wheel. The reduction pulley and the reduction gear are driven by the motor, and then the reduction gear drives the conveying gear shaft. The conveying gear shaft is equipped ...

AI Technical Summary

Problems solved by technology

[0004] The diameter of the reduction gear on the main shaft of the above casing is relatively large, and the upper pressure roller shaft cannot be installed on the same axis as the gear shaft of the reduction main shaft. A set of side-hanging bridge reduction gears must be added, and the bearing sleeve of the upper pressure roller can only be designed as a square Type, a rectangular opening must be opened on the casing, two parallel convex grooves need to be processed on both sides of the square hole, and two grooves are opened on both sides of the square bearing sleeve, which are used to fix the upper pressure roller bearing sleeve, the casing and the square type. The bearing sleeves are all processed from castings, the processing technology is more complicated and the cost is higher

[0005] When the straightening machine is working, the upper pressure wheel and the bearing sleeve are under the reverse tension of the straightening cylinder wire, the two sides of the square bearing sleeve groove and the convex groove of the casing connection will produce a tension offset, and the two sides of the upper pressure wheel square bearing sleeve will be concave. The groove is easy to wear, crack, and the gap is too large, causing the upper and lower traction wheels to swing left and right, and to deviate, so that the side hanging gears of the upper and lower traction wheels, the upper pressure wheel and the main shaft gear are seriously damaged, making it difficult for the machine to straighten the steel bars, and the adjustment occurs. The phenomenon that the steel bar runs to one side, and it is difficult to automatically enter the fixed-length groove of the runway of the straightening machine, and the machine cannot work normally.

[0006] The size of the square bearing seat itself is limited, resulting in a short arc-shaped steel plate for compression, which does not have enough elastic space for up and down movement, and the up and down movement space of the upper pressure wheel bearing sleeve is also reduced.

When the machine is installed and started, the steel bar head cannot automatically push up the front upper traction wheel. It is necessary to stop the machine to loosen the handle of the screw turntable on the steel plate, use a flat head screwdriver to open a certain space for the upper and lower pressure wheels, and manually insert the steel bar head into the upper pressure wheel. The machine can only be installed in the middle of the wheel groove, which is labor-intensive, time-consuming, and unsafe

At the same time, due to the insufficient pressure of the arc-shaped steel plate, when the steel bar of the rear feeding disc is only 1-3 meters away, the steel bar is rotated at a high speed by the straightening cylinder, and the tail of the steel bar at the end of the machine will obviously "roll and skip rope". unsafe

For this reason, it is necessary to stop the machine and loosen and level the pressure screw of the straightening block to adjust the remaining tail of the steel bar, but the tail still cannot achieve the straightening effect.

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