Float roll system with both rectification and tension controlling functions

Abstract

The invention discloses a float roll system with both rectification and tension controlling functions. The float roll system comprises a machine frame, an input guiding idler roll, an output guiding idler roll, a float roll longitudinal position adjusting mechanism, a float roll, and a rectification and tension accurate adjusting mechanism, wherein the rectification and tension accurate adjusting mechanism comprises a rectification sensor, a tension sensor and a spherical motor. Thin film offset is detected as long as a thin film shifts on a feed surface, the runner of the spherical motor is driven to drive the float roll to swing on the thin film feed surface, and the float roll swings in an inverse direction due to the friction between the float roll and the thin film, so as to realize rectification; the runner of the spherical motor is driven to drive the float roll to rotate according to the comparative result between detected tension of the thin film and target tension, so that the axes of the runner and the float roll are eccentric, and the float roll tensions or relaxes the thin film to control the tension of the thin film. As both rectification and tension controlling are realized through the spherical motor, the float roll system has the advantages that the structure is simple, the layout is compact, and the control is convenient.

Description

technical field [0001] The invention relates to the field of flexible film base material conveying, in particular to a floating roller system with functions of deviation correction control and tension control. Background technique [0002] The deviation correction and tension control system are widely used in printing, textile, RFID packaging, plastics and other industries. The operation of the film conveying line has requirements for the accuracy of the lateral deviation of the belt conveying, otherwise it will affect the effect of the product’s feeding and discharging. For some equipment with special functions, such as RFID electronic label packaging equipment, if the lateral deviation of the substrate is too large , will affect the mounting positioning of the chip, which will lead to an increase in the defective rate. At the same time, the tension is also an important guarantee for the accuracy of the substrate conveying operation. [0003] At present, there are some ma...

AI Technical Summary

Problems solved by technology

The design of this scheme is cumbersome, and the precision of synchronous belt transmission is not high

[0007] All the floating rollers mentioned above only have the function of tension adjustment, but cannot produce the effect of deviation correction

At the same time, the transmission mechanism it uses, such as the connecting rod mechanism driven by the cylinder, and the belt drive driven by the motor, all have the disadvantages of complex structure, low transmission accuracy, and slow response speed.

Images