Plastic packaging bag sealing equipment

Abstract

The invention discloses plastic packaging bag sealing equipment. The plastic packaging bag sealing equipment comprises a sealing device, a sealing leakage-proof mechanism and a bag opening device, wherein the sealing device is used for sealing a packaging bag, the sealing leakage-proof mechanism can clamp a bag opening of the packaging bag, and the bag opening device can flatly open the packaging bag. According to the plastic packaging bag sealing equipment, through the sealing device, a sealing cutter is heated in a mode that a heat conduction material is heated through a heating rod for heat transfer, so that all the positions of the sealing cutter are evenly heated, it is guaranteed that no temperature difference exists in all the positions of the whole section of the sealing cutter, and therefore the problems that the sealing temperature is uneven due to increase of the heat sealing length, and then the packaging bag, especially the large-size packaging bag, cannot be evenly and effectively subjected to heat sealing or a lapping opening is burnt can be effectively solved; before the packaging bag is sealed, the bag opening of the packaging bag can be lifted and leveled through the bag opening device, and meanwhile the bag opening is clamped through the sealing leakage-proof mechanism; and the manual intervention operation is greatly reduced, the sealing quality of the packaging bag and the packaging operation efficiency are improved, and the high-quality sealing packaging requirement is met.

Description

technical field [0001] The invention relates to the technical field of packaging, in particular to a plastic packaging bag sealing device. Background technique [0002] In the field of packaging technology, commonly used heat sealing devices for plastic packaging bags can usually only meet the heat sealing requirements for a sealing length of no more than 300mm. When it is necessary to heat seal the mouth of a super-sized plastic packaging bag with a large amount of material and a sealing length of more than 1000 mm, the commonly used heat sealing methods and devices cannot complete effective heat sealing at one time. If lengthen its heat-sealing knife on the basis of existing heat-sealing method and device, when the size of heat-sealing knife lengthens to a certain degree, it is difficult to guarantee the uniform temperature of sealing knife everywhere. The uneven temperature of the knife edge will cause a part of the seal to fail or be scalded, and an effective seal canno...

AI Technical Summary

Problems solved by technology

And before the packaging bag is sealed, the opening of the packaging bag can be lifted and leveled by the bag support device, and the opening of the bag can be clamped by the sealing and leak-proof mechanism, which effectively solves the gas replacement in the packaging bag under certain special use requirements Finally, problems such as sealing failure and air leakage caused by gaps, unevenness, and wrinkles in the bag mouth

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