Automatic bag opening sealing machine for paper-plastic composite bag

Abstract

The invention discloses an automatic bag opening sealing machine for a paper-plastic composite bag. Two racks which are symmetrically arranged at the left and right positions are arranged at the top of a bottom frame, a first rotating cavity is arranged in the bottom frame, a linkage assembly for controlling the racks on the two sides to be close to or far away from each other are arranged in thefirst rotating cavity, and second rotating cavities are oppositely formed in the racks on the left side and the right side. The sealing machine is simple in structure, convenient to use, capable of automatically sealing a bag opening of the paper-plastic composite bag, and free of manually sealing the bag opening of the paper-plastic composite bag with a sealant, avoids leaving gaps, reduces laborintensity, is high in automation efficiency, avoids the phenomenon of cracking of side seams in a transportation process, reduces adverse effects on the paper-plastic composite bag in the transportation process, reduces wrinkles generated in a process of sealing the bag opening of the paper-plastic composite bag, keeps attractiveness of the paper-plastic composite bag, improves product competitiveness of products in the paper-plastic composite bag, improves the enterprise benefit, and is suitable for application and popularization.

Description

technical field [0001] The invention relates to the technical field of industrial packaging, in particular to an automatic sealing machine for paper-plastic composite bags. Background technique [0002] Paper-plastic composite bags are made of plastic woven bags as the base material and compounded by casting method. They are mainly used for packaging powdery or granular solid materials such as engineering plastics, rubber raw materials, building materials, food, chemical fertilizers, cement, etc., and flexible packaging materials. thing. [0003] Both the inner and outer layers of the existing paper-plastic composite bag have side seams, and artificial sealant is used to seal the mouth of the paper-plastic composite bag, which is easy to leave gaps, which is likely to cause cracking of the side seams during transportation, which will affect the transportation process, and For the filled paper-plastic composite bag, it is difficult to carefully seal the mouth of the bag, and...

AI Technical Summary

Problems solved by technology

[0003] Both the inner and outer layers of the existing paper-plastic composite bag have side seams, and artificial sealant is used to seal the mouth of the paper-plastic composite bag, which is easy to leave gaps, which is likely to cause cracking of the side seams during transportation, which will affect the transportation process, and For the filled paper-plastic composite bag, it is difficult to carefully seal the mouth of the bag, and at the same time, it is easy to produce wrinkles in the process of sealing the mouth of the paper-plastic composite bag, which affects the appearance of the paper-plastic composite bag

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