Online measuring device and measuring and controlling method for tread thickness of tire tread winding

Abstract

The invention belongs to the field of tire manufacturing equipment and relates to an online measuring device for tread thickness of tire tread winding. The online measuring device comprises a controller, a laser displacement sensor and a laser displacement sensor servo mechanism, wherein the servo mechanism comprises a sensor bracket, a guide rail and a sensor servo motor; the laser displacement sensor and the sensor servo motor are fixed on the sensor bracket; the controller is respectively connected with a control input end of the sensor servo motor and a signal output end of the laser displacement sensor; the sensor bracket is mounted on the other side of the processed tire opposite to a winding head; under the control of the controller, the sensor servo motor can drive the laser displacement sensor to do the transverse motion parallel to the axis of a winding drum along the guide rail; and the measuring range can cover the whole tire tread. The invention further provides a tread thickness measuring and controlling method realized by using the measuring device. The online measuring device and the measuring and controlling method provided by the invention have the advantages of non-contact, high measuring precision, quick response speed and the like; and the tread winding quality and production efficiency can be greatly improved.

Description

technical field [0001] The invention belongs to the field of tire manufacturing equipment and relates to a tire tread winding machine. Background technique [0002] Large tires need to be manufactured by tread profiling winding, and its equipment structure and processing flow are very complicated. Especially the control system of the winding process has a crucial influence on the processing quality of the tire. The current tread winding equipment usually adopts two methods to realize the online measurement of the winding thickness: 1) Use the grating ruler installed on the winding head mechanism to determine the winding thickness of the tread by measuring the position of the winding head; 2) Use The mechanical detection device is used to measure the thickness of the tread. The thickness measuring device is composed of a cylinder, a sliding sleeve ball bearing and a measuring mechanism. When the rubber strip is wound around for a circle, the diameter of the tire blank become...

AI Technical Summary

Problems solved by technology

[0003] The first method uses an indirect measurement method, and since the grating ruler can only measure the change of linear displacement, the measurement accuracy will be affected when the winding head rotates; although the second method is a direct measurement, it uses a contact method. The surface of the blank is elastic, resulting in inaccurate measurement data; in addition, the shape of the crown of the tire blank is a non-linear body, and the measurement data has fluctuations, so the weight of the rubber compound wound on the tire is inaccurate, which ultimately affects the production. Quality of tire products

The problems caused by this are: 1) The winding accuracy is limited, and the outer dimensions of the produced tires are different from the design standards; 2) Since the thickness measuring device is a contact type, in order to avoid introducing larger measurement errors, The winding speed is limited and the production efficiency is low

Images