Edge sealing device of fruit packing bags

Abstract

The invention discloses an edge sealing device of fruit packing bags. The edge sealing device includes a sealing frame. Vertical supporting columns are connected with the left side and the right sideof the lower end of the sealing frame separately. The lower ends of the vertical supporting columns are connected with supporting legs. Fixed bases are connected with the left end and the right end ofthe upper end of the sealing frame separately. The upper end of each fixed base is connected with a regulating screw. The upper end of each regulating screw is connected with a vertical rod. Side baffles are installed at both left and right ends of each regulating screw separately. A pressure spring is installed on the outside surface of each vertical rod. A top sealing block is connected with the top of each vertical rod. A rotating shaft fixed seat is connected with the inner baffle of each side baffle. A rotating shaft is connected between the two fixed bases. The rotating shaft is provided with a glue spreader and an adjustable screw rod is connected over the middle point of the rotating shaft. Upper transverse plates are connected with both left and right sides of the adjustable screw rod and threaded holes are formed in the contact surfaces of the upper transverse plates and the adjustable screw rod. The problems of untight sealing, rough surface and low production efficiency can be solved.

Description

technical field [0001] The invention relates to the technical field of edge sealing, in particular to an edge sealing device for fruit packaging bags. Background technique [0002] In the process of making fresh-keeping packaging bags, it is necessary to fold the plastic film in half first, then seal the folded sides, and then heat-press the sealed plastic film at a predetermined length to form a bottom seal, thus forming a complete fresh-keeping package. bag, and then wrap the strip-shaped fresh-keeping bag on the shaft sleeve. Because the plastic film did not compress the folded edge during the double folding process, the folded edge is thicker than the middle part and the sealing part when the fresh-keeping bag is wound on the shaft sleeve, and the thickness is uneven, which affects beautiful. [0003] The name of the application number is 201220111921.1 for a paper bag hemming device, the invention can realize (1) the height of the hemming pulley can be adjusted to ada...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the existing technical solutions, the present invention provides an edge sealing device for fruit packaging bags, which not only solves the problem that the traditional edge sealing device for fruit packaging bags uses flat-plate extrusion edge sealing with ironing bars during the edge sealing process. , the airtightness of the edge sealing cannot be guaranteed, resulting in poor edge sealing effect and unqualified product quality. It also solves the problem that the existing edge sealing device for fruit packaging bags does not adopt effective paving and stretching device when sealing the edge. , often affected by the natural environment or man-made, the flatness of the edge cannot be guaranteed when the edge is sealed, and the problem that the packaging bag is often wrinkled affects the appearance of the packaging bag, and it also solves the existing edge sealing device for fruit packaging bags No effective heat dissipation and cooling device is adopted, which leads to the failure of timely heat dissipation of the well-sealed packaging bags, and the adhesion between products. The traditional static heat dissipation affects the cooling efficiency and cannot meet the requirements of large quantities of fast edge sealing.

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