Rubber band binding device of plastic bag

Abstract

The invention discloses a rubber band binding device of a plastic bag. The rubber band binding device comprises a machine frame, a vibration disc mechanism, a binding mechanism and a plastic bag feeding mechanism, and is characterized in that a suspension outer clamping mechanism is further arranged at the position, corresponding to the plastic bag feeding mechanism, of the plastic bag feeding mechanism, the suspension outer clamping mechanism comprises a bag clamping mechanical arm, and a telescopic rod mechanism is further arranged on the bag clamping mechanical arm. In the process of binding the plastic bag with a rubber band, the suspension outer clamping mechanism clamps one side of the plastic bag, the other side of the plastic bag is suspended outside, and the part which is suspended outside is easy to rebound and spread due to the fact that the clamping force of the bag clamping mechanism is lost, so that the opening amplitude of the rubber band needs to be increased or the rubber band with a large model is adopted. According to the rubber hand binding device, after a telescopic rod mechanism is adopted, the rebound plastic bag can be folded and leveled, and thus the breakage rate of the rubber band is reduced, and the bundling cost is reduced.

Description

technical field [0001] The invention relates to a rubber band binding device for plastic bags. Background technique [0002] The plastic bags automatically produced by the bag making machine, in order to facilitate storage, sales and use, these plastic bags are also automatically folded many times by a plastic bag folding machine, and finally folded into long strips, and the plastic bags folded into long strips are The end surface is U-shaped, because the folded plastic bag is elastic and easy to rebound and scatter, so it is necessary to put an elastic ring-shaped rubber band in the middle of the folded plastic bag, which is the so-called rubber band binding of the plastic bag. . [0003] Authorized notification number CN208070086U discloses an automatic strapping machine (hereinafter referred to as reference document 1), which mainly includes: a main material feeding mechanism (ie, a plastic bag feeding mechanism), an auxiliary material feeding mechanism (vibrating plate ...

AI Technical Summary

Problems solved by technology

[0005] The problem in Comparative Document 2 is: the product conveying manipulator only clamps one end of the plastic bag, while the other end hangs outside, and the part hanging outside will rebound, forming a bell mouth shape, that is, the place clamped by the manipulator is U-shaped Type, and the place not clamped by the manipulator, that is, the plastic bag on the side corresponding to the strapping mechanism will rebound and expand, and its end face is V-shaped

The existing problem is that the plastic bag delivery device (plastic bag feeding mechanism) is a conveyor belt, and when the conveyor belt transports the plastic bags to the strapping mechanism, the folded plastic bags are easy to fall apart.

Although the plastic bag in the flat state reduces the rebound during the bundling process, it is not easy to open into a V shape, but it is easy to sag, bend, and fold down

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