Tension regulating device for processing drawstring bag

Abstract

The invention relates to the technical field of tension regulating devices for processing drawstring bags, and provides a tension regulating device for processing a drawstring bag. The tension regulating device comprises a body, and a cutting device and an edge banding machine are arranged on the device body; and a film is inserted into the cutting device and the edge banding machine in a penetrating mode, and a first servo motor and a second servo motor are arranged on the the body. According to the tension regulating device, the shortcomings of the prior art are overcome, and the tension regulating device is rational in design and compact in design; the problems that the requirements of an existing threading machine for servo motor power and for traditional structure strength are too high, and the tension regulation difficulty of the film is too high are solved; according to the tension regulating device, through simple structure combination, the threading machine is controlled through the two servo motors, and can be driven through the two low-power servo motors; the driving pressure is shared, and the strength of a transmission structure is reduced; meanwhile, the two servo motors are coordinated with the tension regulating devices, and the tension of the film can be regulated automatically; and the tension regulating device is high in practicability.

Description

technical field [0001] The invention relates to the technical field of tension adjustment equipment for processing string bags, in particular to a tension adjustment device for processing string bags. Background technique [0002] The string bag is a bag with a drawstring at the mouth of the plastic bag. The mouth of the plastic bag can be sealed by pulling the drawstring, and is widely used in daily life. [0003] The rope-threading bag is processed by a rope-threading machine, and the plastic film with the drawstring is heat-sealed on the plastic bag by the edge banding machine on the rope-threading machine. [0004] The rope threading machines currently on the market also have the following problems in actual use: [0005] 1. The traditional rope threading machine is a servo motor with 3 sets of rubber rollers, which requires a large servo motor power, high requirements on the strength of the transmission mechanism, and is relatively easy to damage. [0006] 2. The trad...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the deficiencies of the prior art, the present invention provides a tension adjustment device for threading bag processing, which overcomes the deficiencies of the prior art, has a reasonable design and a compact structure, and solves the problem that the existing stringing machine requires too much power for the servo motor. Large, the strength requirements of the traditional structure are too large, and the tension adjustment of the film is too difficult. The present invention adopts two servo motors to control the rope threading machine through a simple structure combination, and two low-power servo motors The motor can drive, share the driving pressure, and reduce the strength of the transmission structure. At the same time, two servo motors cooperate with the tension adjustment device to automatically adjust the tension of the film, which is very practical

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