Method for controlling material winding speed

Abstract

The invention provides a method for controlling a material winding speed. Through the method, the material winding circumference is detected so as to exactly adjust a rotation angle speed of a winding roller; the change of rotation speeds of the winding roller is buffered through fluctuation of a floating roller relative to a balance position, so as to realize the match between the winding speed and a transportation line speed, prevent materials from being stretched and deformed, and improve the material winding and storing quality. The control method comprises: the materials are transported to the winding roller through a conveying belt so as to complete the winding with laying cloth; and the floating roller is suspended and supported below the materials so as to adjust the rotation angle speed omega of the winding roller. Compared with the prior art, the rotation angle speed omega of the winding roller in the method provided by the invention satisfies the expression: omega =V / C, wherein V is the linear velocity of the conveying belt; C is the circumference of the material winding on the winding roller; during the winding process, an included angle between the balance position of the floating roller and a horizontal reference line is set as a0; and an angle formed by the fact that the floating roller each additionally rotates a delta a relative to the balance position is detected, namely the material winding circumference is correspondingly increased with a length of delta C.

Description

technical field [0001] The invention relates to a control method for material coiling speed, which belongs to the fields of production automation and rubber machinery. Background technique [0002] According to the existing rubber tire manufacturing and processing technology, all materials that constitute the semi-finished tire embryo need to be bonded and rolled on the forming drum, such as steel cord, inner liner or belt layer, etc. The forming drum is then cut to length. [0003] Usually, the above-mentioned materials are rolled into rolls with the pad cloth on the coiling device. The main function of the coiling device is to coil the continuously produced and transported materials into rolls and store them. The surface of the material is flat, wrinkle-free, and the curling is neat through the coiling with the pad cloth, which is easy to store and transport. In order to prevent the material from being stretched and deformed, it is required to ensure that the curl is mod...

AI Technical Summary

Problems solved by technology

[0006] In the process of identifying the coiling radius and controlling the rotational speed of the coiling shaft, the coiling radius is a fast time-varying parameter. If the radius change Δr is set to a small value, it is easy to lag in the adjustment of the rotational speed of the coiling shaft. The coiling speed will be fast and slow; if the radius change Δr is set to be large, the speed of the coiling shaft cannot be adjusted in time, and the material will be stretched and deformed easily.

[0007] Moreover, using devices such as ultrasonic sensors to measure the coiling radius has a relatively high detection cost

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