Bag feeding mechanism for packaging bags

Abstract

The invention aims at providing a bag feeding mechanism for packaging bags. The bag feeding mechanism can be smoothly inserted into packaging bag openings, and the bag feeding efficiency is high. A rotating shaft is arranged on a rack above a chain plate transmission mechanism. The length direction of the rotating shaft is located in the horizontal direction and is perpendicular to the conveying direction of the chain plate transmission mechanism. Two supporting arms with the length direction being perpendicular to the length direction of the rotating shaft are arranged on a shaft body of therotating shaft, the upper ends of the supporting arms are in sliding fit with the rotating shaft in the axial length direction, and the lower ends of the supporting arms protrude towards the chain plate transmission mechanism to be provided with opening and closing type supporting plates. In the above scheme, the two supporting arms do horizontal moving actions on the rotating shaft, the height ofthe lower ends of the opening and closing type supporting plates arranged at the lower ends of the supporting arms are determined, for packaging bags with different specifications, the opening and closing type supporting plates can be smoothly inserted into opened packaging bag openings all the time when the supporting arms horizontally move to proper positions on the rotating shaft, the bag openings are expanded open, and therefore the bag feeding efficiency is ensured.

Description

technical field [0001] The invention relates to the technical field of packaging machinery, in particular to a bag loading mechanism for packaging bags. Background technique [0002] Material weighing and bagging can be completed by a quantitative automatic packaging machine. The bag openings of the packaging bags placed flat on the conveying mechanism are superimposed. A group of suction cups absorb the lower layer of bag body at the mouth of the belt from below, so that the upper and lower bag mouths are separated, and then the packaging bag is transferred to the clamping mechanism for loading through the bag-up mechanism. [0003] The Chinese patent "A Bag-Loading Mechanism for Packaging Equipment" (authorized announcement number CN 209972894 U) discloses the following technical scheme: the servo motor drives the synchronous belt pulley to rotate through the synchronous belt, the synchronous belt wheel can drive the square shaft to rotate, and the square shaft drives the ...

AI Technical Summary

Problems solved by technology

In the above structure, the first bag-taking plate and the second bag-taking plate are hinged on the square shaft. When the first bag-taking plate and the second bag-taking plate rotate around the hinge shaft at different angles, the first bag-taking plate and the second The heights of the lower end surfaces of the two bag-taking plates are different, so that the first bag-taking plate and the second bag-taking plate will be close to each other, and the inserting plate at the lower part of the first bag-taking plate and the second bag-taking plate cannot be inserted into the opened package The situation in the bag opening will cause the failure of the upper bag and affect the efficiency of the entire packaging process

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