Crown belt tension control system

Abstract

The invention provides a crown belt tension control system which comprises a transmission assembly, a driving assembly, a tension control assembly and a control unit. The transmission assembly comprises multiple conveying rollers. The driving assembly comprises a first servo motor and a driving roller connected to the output end of the first servo motor, and the driving roller is located between the two conveying rollers. The tension control assembly comprises a second servo motor and a tension swing arm so as to control the crown belt tension between the driving roller and a belt drum. The tension swing arm comprises a rotating roller which is located between the driving roller and the belt drum. At least one conveying roller is spaced between the rotating roller and the driving roller. The control unit carries out torque control over the second servo motor and provides stable torsion for the tension swing arm. The control unit further controls rotating speed of the first servo motor,thus the linear speed for feeding the crown belt at the driving roller is matched with the linear speed for winding the crown belt around the belt drum, and thus the tension swing arm can be maintained at a balance position. In this way, the crown belt tension control system can precisely control tension in the process of conveying the crown belt to the belt drum.

Description

technical field [0001] The invention relates to the technical field of tire building machines, in particular to a crown belt tension control system. Background technique [0002] The cap is a common material in the tire manufacturing process. It is a slender belt structure. The core of the cap is a reinforcing material, usually nylon or steel cord, and the outer layer of the cap is usually rubber. In the process of manufacturing tires, it is usually necessary to helically wind several meters of caps to the outer circumference of the belt material on the belt drum at a relatively fast speed. The existing crown tape feeding system includes a coil unwinding device and a feeding device. Wherein, the feeding device is used for receiving the crown tape delivered from the coil unwinding device, and attaching the crown tape to the belt drum. The feeding device includes a substrate, a guide roller and a driving roller arranged on one side of the substrate, and a driving motor. The...

AI Technical Summary

Problems solved by technology

[0003] In the above process, factors such as the start and stop of the belt drum, acceleration and deceleration will cause a difference between the linear speed of the winding belt on the belt drum and the linear speed of the belt supply at the driving roller, which will lead to The band tension fluctuates, and the stability of the band tension directly affects the high-speed performance, durability and balance performance of the tire

Images