Constant tension control device based on time calculation rolling diameter

Abstract

The invention provides a constant tension control device based on a time calculation rolling diameter. The constant tension control device comprises a bobbin rack and an H-shaped wheel arranged on the bobbin rack in a rotating mode. A power supply for supplying power is arranged on the bobbin rack. A motor is arranged on one side of the bobbin rack. A motor shaft of the motor is fixedly connected with a lead screw. A screw and nut pair is arranged on the lead screw. A tension sensor is arranged on the other side of the bobbin rack. The screw and nut pair is connected with the tension sensor through a damping rope. A spring is connected between the tension sensor and the damping rope. A rotating wheel matched with the damping rope is fixedly arranged on the H-shaped wheel. A tension controller is arranged on the bobbin rack. The tension sensor and the motor are both connected with the tension controller. Through the control method for controlling the tightness of the damping rope through a lead screw stepping motor, according to the constant tension control device, the tension of each strand of steel wires is kept constant in the transmission process, and tension between the steel wires tends to be constant.

Description

technical field [0001] The invention relates to steel wire rope processing equipment, in particular to a constant tension control device for calculating coil diameter based on time. Background technique [0002] At present, the production equipment used by most domestic steel wire rope manufacturers, whether it is a stranding machine or a rope forming machine, uses a simple damping belt. During twisting, workers manually adjust the tension, and adjust the tension between the nut and the spring. Adjust the tightness of the free end of the damping rope on the damping wheel to adjust the tension of the steel wire or rope strands on each pay-off I-shaped wheel. Once the pay-off tension is adjusted, it cannot be adjusted after turning on the machine, and it can only be left to itself. During the pay-off process, the pay-off speed tends to decrease with the decrease of the roll diameter of the I-shaped wheel. In order to ensure constant line speed and constant tension, the speed ...

AI Technical Summary

Problems solved by technology

Once the pay-off tension is adjusted, it can no longer be adjusted after turning on the machine, you can only let it go

During the pay-off process, the pay-off speed tends to decrease with the decrease of the roll diameter of the I-shaped wheel. In order to ensure constant line speed and constant tension, the speed of the I-shaped wheel must be increased. Due to the impact of the damping rope on the damping wheel The braking torque has not changed, and the speed of the I-shaped wheel cannot be automatically increased due to the reduction of the capacity of the I-shaped wheel, so it is not enough to ensure the constant pay-off speed and constant tension pay-off

At the same time, this tension control method mainly relies on manual proficiency and responsibility, so it is greatly affected by human factors, and the tension control accuracy is low, resulting in uneven twisting of the steel wire rope, and poor surface smoothness and looseness of the steel wire rope. Guarantee, which in turn affects the appearance quality and bearing capacity of the wire rope, greatly shortening the service life of the wire rope

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