Heat seal device of PE film heat seal bag making machine

Abstract

The invention discloses a heat seal device of a PE film heat seal bag making machine. The heat seal device comprises a transverse seal device and a longitudinal seal device, wherein the transverse seal device and the longitudinal seal device each comprise a heat seal frame, a first upper lifting driving part, a first lower lifting driving part, an upper heat seal knife assembly, a lower heat sealknife assembly, and an air cooling assembly, wherein the first upper lifting driving part and the first lower lifting driving part are arranged on the heat seal frame, the upper heat seal knife assembly and the lower heat seal knife assembly are mounted on the first upper lifting driving part and the first lower lifting driving part correspondingly, the air cooling assembly is arranged on the upper heat seal knife assembly and the lower heat seal knife assembly, and a heat seal station is arranged between the upper heat seal knife assembly and the lower heat seal knife assembly; each upper heat seal knife assembly comprises a first upper cooling plate, a first upper heat insulation plate, an upper heating resistance wire, and a first upper heat insulation part which are sequentially connected and are arranged from top to bottom, and each lower heat seal knife assembly comprises a first lower cooling plate, a first lower heat insulation plate, a lower heating resistance wire, and a first lower heat insulation part which are sequentially connected and are arranged from bottom to top; and the heat seal device is arranged on the bag making machine and can carry out effective heat sealon a PE film, and the PE film bag preparing quality is improved.

Description

technical field [0001] The invention relates to a bag-making machine, and more particularly relates to a heat-sealing device of a PE film heat-sealing bag-making machine. Background technique [0002] Bag making machine is a kind of equipment used to make packaging bags. The plastic film is divided into upper film and lower film, which are guided and conveyed separately, and then overlapped at a suitable position. The overlapped upper film and lower film are edge-sealed horizontally and vertically. Finally, a plurality of bag structures are formed, and finally it is cut with a cutter to form a plurality of bags. [0003] In the prior art, the edge sealing device of the bag making machine is a constant temperature heating structure. In the process of heat sealing the PE film bag body, the PE film will soften, causing the PE film to break easily when being pulled, thus causing The bag-making machines in the prior art cannot heat-seal PE, or the effect of heat-sealing is poor,...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the edge sealing device of the bag making machine is a constant temperature heating structure. In the process of heat sealing the PE film bag body, the PE film will soften, causing the PE film to break easily when being pulled, thus causing The bag making machine in the art cannot heat seal PE, or the heat sealing effect is poor, resulting in unstable and easily damaged PE film bags during use

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