Slide fastener separating device of slide fastener type flexible package bag packaging machine

Abstract

The invention provides a slide fastener separating device of a slide fastener type flexible package bag packaging machine. The device is characterized in that a double-shaft cylinder of a rubbing clamp with an upper rubbing board and a rubbing board is fixed on a frame of the packaging machine, a compressing cylinder is fixed under the lower rubbing board close the opening position at the right end of the rubbing clamp, and a round bar type rubbing head is also fixed on the frame of the packaging machine. According to the invention, when a packaging bag embedded with a slide fastener is conveyed to the space between the rubbing clamp and the round bar type rubbing head, the double-shaft cylinder extends out and drives the rubbing clamp to move rightwards, the packaging bag is pushed toward the round bar type rubbing head, after the packaging bag is pushed and folded to half wrap the round bar type rubbing head, the compressing cylinder shrinks and clamps, and after the upper rubbing board and the lower rubbing board compress the packaging bag on the round bar type rubbing head moderately, the double-shaft cylinder shrinks and drives the rubbing clamp to move leftwards and retreat so as to leave the round bar type rubbing head, so that two surfaces of the packaging bag are separated, and the slide fastener of the packaging bag are also separated. By adopting a simple device, the mechanism of the slide fastener type flexible package bag packaging machine is greatly simplified, and the cost is lowered; and the device is practical and reliable.

Description

technical field [0001] The invention introduces a zipper opening device for a zipper type flexible packaging bag packaging machine. Background technique [0002] At present, there are two types of food flexible packaging bags, one is the zipper type with repeated sealing (press-embedded zipper), and the other is the non-zipper type. The zipper type flexible packaging bag packaging machines are all equipped with a zipper opening device. The existing zipper type flexible packaging bag packaging machines usually adopt a combination type zipper opening mechanism with a relatively complicated structure. The two retractable robotic arms respectively clamp the openings on both sides of the bag, and after clamping, the two mechanical arms swing and rotate to forcibly tear open the zipper of the packaging bag to complete the zipper opening process in the automatic packaging process. Due to the many moving links and complex structure of this type of mechanism, the cost is generally h...

AI Technical Summary

Problems solved by technology

Due to the many moving links and complex structure of this kind of mechanism, the cost is generally high, and occasionally the packaging bag will be torn, resulting in substandard packaging.

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