Paper bag creasing machine and tubular bag opening device thereof

Abstract

The invention discloses a paper bag creasing machine and a tubular bag opening device. The paper bag creasing machine comprises the tubular bag opening device. The tubular bag opening device comprises a working plane and two bag supporting planes, the two bag supporting planes are symmetric with each other relative to the working plane, included angles are formed among the bag supporting planes and the working plane, and a transmission mechanism is arranged near the working plane; bag supporting tube stacks comprising bag supporting tubes are arranged on the bag supporting planes, and the bag supporting tubes are bent to be arc-shaped, are connected with the transmission mechanism, and rotate around the centers of arcs of the bag supporting planes or positions near the centers of the bag supporting planes. The arc-shaped bag supporting tubes can be inserted into openings at the ends of a tubular bag by means of rotation and can gradually open the originally closed openings of the tubular bag owing to the included angles among the bag supporting planes and the working plane, so that oblique creases can be pressed on a paper bag tube, the paper bag tube can be folded, and the openings of the paper bag tube can be sealed. The paper bag creasing machine and the tubular bag opening device have the advantages that opening actions can be carried out automatically, and the production efficiency is greatly improved; the paper bag creasing machine and the tubular bag opening device are applicable to paper bag tube production and packaging operation.

Description

technical field [0001] The invention relates to a paper bag tube packaging production machine and an auxiliary device used therein. Background technique [0002] In the automatic production line of paper bag tube (or tube bag), there is a link that uses the equipment of paper bag creasing machine. The structure of the paper bag creasing machine is as follows: it has an entrance and an exit, and there are belt guide rails and pressure rollers for transmission between the entrance and the exit. The pressure rollers press the incoming paper bag tube through the belt and keep it forward transportation. There are two upper and lower baffles on both sides of the creasing machine. There is a gap between the two baffles for the end of the paper bag tube to be exposed. The paper bag tube (at this time, the paper bag tube is folded into a rectangle, and The follow-up action is to rely on the form of creasing, folding and bonding to seal it into a paper bag) After the two ends are ex...

AI Technical Summary

Problems solved by technology

In the past paper bag creasing machine, because the degree of automation is not high, the action of opening the bag opening is realized manually, so the efficiency is still low.

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