Stretched membrane feeding tension control device

Abstract

The invention discloses a stretched membrane feeding tension control device, which comprises an installing frame and a stretched membrane unreeling shaft. The stretched membrane feeding tension control device is characterized in that a tension control roller is arranged in a feeding guide roller and is arranged at an upper swinging end of a swinging rod, the winging rod is fixedly arranged on an eccentric shaft, the eccentric shaft is rotationally arranged on the installing frame, the eccentric shaft is reset through a torsion spring arranged at the shaft end of the eccentric shaft or is reset through a tension spring regulating component arranged at the lower end of the swinging rod after rotating, a slide seat capable of leftwards and rightwards sliding is arranged at the side edge of the installing frame, one end of the slide seat is provided with a brake block to be aligned with a brake wheel arranged at the shaft end of the stretched membrane unreeling shaft, the other end of the slide seat is provided with a brake spring, a slide moving window is arranged on the slide seat, a slide block and a rolling bearing are movably arranged in the slide moving window, and an eccentric shaft head of the eccentric shaft is arranged in an inner hole of the rolling bearing in a sheathing way. The stretched membrane feeding tension control device has the advantages that the accurate control of the tension force during the stretched membrane reeling feeding can be realized, and in addition, the precise control on the feeding length during the lower aligning work of a stretched membrane can be realized.

Description

[0001] technical field [0002] The invention relates to stretch film packaging equipment, in particular to a film feeding tension control device when the stretch film is unrolled. Background technique [0003] Stretch film is sometimes used in the packaging of food such as betel nuts. During the packaging process of stretch film, especially when the stretch film roll material is just unrolled and fed, it is necessary to ensure its accurate and reliable tension control. In addition, in ensuring At the same time of accurate tension control, for some stretch films that need to be benchmarked, it is necessary to set up a special benchmarking device, so the structure of the equipment will appear complicated and the adjustment will be troublesome. Contents of the invention [0004] In view of the deficiencies in the background technology, the purpose of the present invention is to provide a method that can not only realize the accurate control of the tension when the stretched ...

AI Technical Summary

Problems solved by technology

[0003] Stretch film is sometimes used in the packaging of food such as betel nuts. During the packaging process of stretch film, especially when the stretch film roll material is just unrolled and fed, it is necessary to ensure its accurate and reliable tension control. In addition, in ensuring At the same time of accurate tension control, for some stretch films that need to be marked, it is necessary to set up a special lower marking device, so the structure of the equipment will appear complicated and troublesome to adjust

Images