Device and method for directly manufacturing packaging bag before cut-off of workpiece marginal material

Abstract

The invention discloses a device and method for directly manufacturing a packaging bag before cut-off of a workpiece marginal material. The device comprises a rack and also comprises a feed roller group, a folding forming mechanism, a middle-seal heat-seal cutting tool, a bottom-seal heat-seal cutting tool, a cooling sealing mechanism, a marginal material cut-off mechanism, a cut-off mechanism and a pulling mechanism which are sequentially located on the rack. By means of the device for directly manufacturing the packaging bag before cut-off of the workpiece marginal material, the problem that the packaging bag can be directly manufactured only through separated cutting is solved, so that the production cost is reduced, and the production period of products is shortened. According to the method, as the packaging bag is formed firstly and then marginal material cut-off is conducted, the phenomena of defective products caused by back seal exposure and many rework hours in the bag manufacturing process are eliminated; an adjusting screw rod is additionally arranged on the marginal material cut-off mechanism so that a marginal material cutting blade can be freely adjusted in a certain range; when a packaging film is moved unstably on the bag manufacturing device, adjustment and deviation rectification of EPC, middle-seal hot-stamped strip positions and the like are not needed, and a worker only needs to adjust the position of the marginal material cutting blade through the adjusting screw rod; and accordingly, great convenience is brought to operation for the worker.

Description

technical field [0001] The present invention relates to the technical field of making composite flexible packaging bags, in particular to the technical field of production technology suitable for back-sealing bags with a single layout and a large unit area, and in particular to a device for directly making packaging bags by cutting off process trimmings; the present invention It also relates to a method for directly making packaging bags by cutting off the process side material. Background technique [0002] In the production of packaging bags, the traditional production process must cut off the process side material according to the product specification and size in the traditional production process before making bags, and after winding with a paper tube suitable for the diameter of the feeding shaft of the bag making equipment, In order to carry out the production of packaging bags. The traditional production process has an extra cutting process in the entire production ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned defects in the prior art, one of the purposes of the present invention is to provide a device for directly making packaging bags by cutting off the process side material, which solves the problem that the packaging bags must be cut before they can be directly made into bags, and saves production costs. And the production cycle of the product, reduce the manufacturing cost of the entire production process of the packaging bag, reduce production energy consumption and labor costs, increase the overall production capacity, and maximize the production capacity on the basis of the same number of equipment

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