Automatic torque changing cloth rolling method for cloth rolling machine

Abstract

The invention provides an automatic torque changing cloth rolling method for a cloth rolling machine. Through a PLC control system, a servo motor is controlled to increase the torque of the servo motor gradually according to the rolling number of cloth rolling and output to an intermediate guiding roller, so as to meet the gradual feed requirements of the torque required for a friction roller in the middle and later periods of cloth roll rolling and collecting. The PLC control system is internally provided with the following torque increase calculation formula: 'the total weight divided by thetotal rolling number divided by a friction coefficient of the friction roller, then divided by the percentage of the motor torque, and multiplied by the real-time rolling number, so that a torque value required by a cloth rolling roller group under the real-time rolling number is obtained, and then the fixed torque of a cloth pulling roller group after debugging is added', and a friction compositive coefficient is obtained by testing the surface smoothness of different cloth. The problem that the torque of a diameter-increasing friction roller of the cloth is insufficient in the later periodof cloth rolling and consequently the power of the cloth pulling roller group is dispersed is solved, the fact that the torque of the cloth pulling roller group always keeps the cloth pulling tensionconstant is guaranteed, the code weight is even, the elasticity of cloth rolling and collecting of the cloth rolling roller group is even, the quality of cloth pulling is improved, and the defect rateof the cloth is reduced.

Description

technical field [0001] The invention relates to the technical field of cloth rolling, in particular to an automatic variable-torque cloth rolling method for a cloth rolling machine. Background technique [0002] Circular knitting machine is the basic equipment of the textile industry, also known as large circular knitting machine, which uses multiple knitting needles set on the dial and needle cylinder to weave yarns of the same or different materials into circular fabrics. Generally, circular knitting machines are completed After weaving, the fabric needs to be pulled and rolled into a roll or folded into piles for convenient storage and transportation. In order to keep the rolled or folded fabric flat without creases, and to ensure that the fabric is stretched when it is rolled and unfolded Tension is average. And the device that winds up the woven cloth into a bundle of flat cloth rolls is exactly the cloth winding machine arranged under the circular knitting machine. A...

AI Technical Summary

Problems solved by technology

When rolling the cloth, although the force of the pulling rod group is set to be constant during operation, but because the torque output by the motor is constant, it will not increase correspondingly with the increase of the rolled cloth, which may easily cause rolled cloth Late Cloth Insufficient torque of the diameter-increasing friction roller disperses the strength of the cloth rod group, and the torque of the cloth rod group that originally requires constant torque will be forced to decrease, which will affect the cloth pulling effect and the produced cloth will be smaller Problems such as uneven weight, unqualified output, and even shutdown and paralysis

[0005] In order to solve the above problems, people in the industry use two motors to control the cloth stick group and the cloth roll group respectively. Although the problem seems to be solved on the surface, such a design requires a high degree of cooperation between the two motors, and the system configuration must be corresponding High, the cost of the entire system is difficult to mass-produce in the current highly competitive market

Can only be manufactured in conceptual small quantities

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