Small self-adapting wire drawing machine with variable disk diameter

Abstract

The invention discloses a small self-adapting wire drawing machine with a variable disk diameter, which comprises multi-stage diameter-reducing wire drawing dies and multi-stage traction wheels, wherein each traction wheel is arranged between every two diameter-reducing dies; an annular groove is formed at the outer edge of each traction wheel; a plurality of pulleys and take-up pulleys are arranged behind the last-stage traction wheel; two brackets are arranged between two pulleys; a gap is formed between two brackets; each bracket is provided with a strip-shaped sliding groove; a wire passing wheel is positioned in the gap between two brackets; the central axis of each wire passing wheel slides up and down in each strip-shaped sliding groove; an annular groove is formed at the outer edge of each wire passing wheel; a swinging rod seat is installed at one side of each bracket; a tension swinging rod is installed on each swinging rod seat through a rotation axis with a torsion spring;a rolling wheel is installed at the front end of each tension swinging rod; each rolling wheel is butted below the outer edge of each wire passing wheel; and an angle sensor is installed at the rotating connection point of each tension swinging rod and each rotation axis to sense the rotation angle of each tension swinging rod. The small self-adapting wire drawing machine with variable disk diameters overcomes the defects of prior wire drawing machines, ensures the consistency of the winding diameter of real-time computation and the practical winding diameter, completely solves the problems of slow response of the large winding diameter and oscillation of the small winding diameter, shortens the production cycle and saves the cost.

Description

technical field [0001] The invention relates to the field of small wire drawing machines controlled by double frequency conversion, in particular to a small wire drawing machine with self-adaptive disk diameter change. Background technique [0002] At present, the small wire drawing machine controlled by double frequency conversion mainly adopts tension control board + main drive frequency converter + winding frequency converter. Because the tension control board only controls the position of the tension swing rod, when the speed of the wire drawing machine reaches about 2000m / min, the control effect of the tension board is not ideal, and the tension swing rod keeps swinging up and down. The up and down fluctuation of the pendulum indicates that the tension control is unstable, which will inevitably affect the quality of the thin copper wire. This is also a common and difficult problem in many small wire drawing machines controlled by dual frequency conversion. [0003] The...

AI Technical Summary

Problems solved by technology

[0004] (1) There is only one set of PID control from the empty reel to the full reel, which cannot adapt to the change of the reel diameter;

[0005] (2) The dynamic response ability of the frequency converter is weak and cannot adapt to the high-speed operation of the wire drawing machine;

[0006] (3) The tension counterweight system is not clear, and it is not easy to adjust properly

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