Bag feeding and opening mechanism of packaging machine

Abstract

The invention discloses a bag conveying and bag opening mechanism of a packaging machine. The bag conveying and bag opening mechanism of the packaging machine comprises a bag conveying device and a bag opening device, wherein the bag conveying device comprises a bag conveying support, a driving device and a bag conveying mechanism; the bag conveying mechanism comprises a first annular conveying mechanism, a second annular conveying mechanism, a plurality of first fixing blocks and a plurality of packaging bag positioning pieces; the multiple first fixing blocks are installed on the first annular conveying mechanism; each first fixing block comprises a connecting seat, a cushion block and a clamping piece; an inserting gap is provided between the clamping piece and the cushion block; a clamping opening is formed in the clamping piece; each packaging bag positioning piece comprises a positioning rod; an annular lower convex edge is arranged at the lower end of the positioning rod; the annular lower convex edge is embedded in the inserting gap; the positioning rod is placed in the clamping opening; a top pushing plate is arranged above the rear part of the first annular conveying mechanism; a pushing inclined plane capable of pushing the packaging bag positioning piece out of the first fixing block is arranged on one side of the pushing plate; and the bag opening device is arranged at a position corresponding to the middle of the first annular conveying mechanism. The bag conveying and bag opening mechanism of the packaging machine has the advantages that operation is convenient, the labor intensity can be reduced, and the labor cost can be saved.

Description

technical field [0001] The invention relates to packaging machinery, in particular to a bag feeding and opening mechanism of the packaging machine. Background technique [0002] In the modern packaging industry, for the packaging of sheet materials (such as diapers), it is often necessary to stack the sheet materials by a stacker, then compress the stacked sheet materials, pack them into packaging bags and seal them after compression , so as to complete the packaging of sheet materials. [0003] An existing fully automatic diaper packaging production line (such as the fully automatic diaper packaging production line published in the Chinese Invention Patent Application Specification with the application publication number CN104843248A), includes a stacker, a pre-compression device, a transition mechanism, a secondary compression device, a feeding Bag opening mechanism, package sealing cutting device, push handle mechanism and edge material collection device, bag feeding and...

AI Technical Summary

Problems solved by technology

[0006] When the above-mentioned bag feeding device is working, when a stack of packaging bags on the two positioning rods is used up (that is, the stack of packaging bags is opened by the bag opening device and filled with materials), the two positioning rods are in the first position. Continue to move under the drive of the circular transmission mechanism. At the rear end of the first circular transmission mechanism, the two positioning rods need to be manually pulled out from the positioning holes, and then when the first fixed block moves to the front end of the first circular transmission mechanism, manually Insert the two positioning rods with a stack of packaging bags into the corresponding positioning holes respectively. This operation is cumbersome and labor-intensive. Usually, it is necessary to configure one at the front end of the first circular transmission mechanism and one at the rear end of the first circular transmission mechanism. workers, increased labor costs

In addition, when inserting the two positioning rods with a stack of packaging bags into the corresponding positioning holes, it is necessary to identify the corresponding first fixing blocks. However, since the first fixing blocks are closely arranged and have the same shape, it is easy to operate The insertion position is wrong, so that the position of the packaging bag is not accurate when it reaches the bag opening device, which affects the normal operation of subsequent processes such as opening the bag mouth and filling materials

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