Packaging sealing device and packaging machine applying same

Abstract

The invention relates to a packaging sealing device and a packaging machine applying the same. The packaging sealing device comprises an upper translational arm, a lower translational arm, an upper sealer fixed to the upper translational arm, a lower sealer fixed to the lower translational arm and a driving device, wherein the upper sealer is in sliding connection with the upper translational arm;the lower sealer is in sliding connection with the lower translational arm; sealer compression springs are arranged between the upper sealer and the upper translational arm and between the lower sealer and the lower translational arm; and the driving device drives the upper translational arm and the lower translational arm to move towards each other, away from each other and in a composite motionin the front-back direction. The packaging sealing device and the packaging machine applying the same solves the problems in the prior art, prolongs the contact time of the sealer and the packaging bag, enables the heating time of the sealing part of the packaging bag to be sufficient, and improves the sealing quality; the parallelogram double-crank mechanism is adopted to drive the action of thesealer, so that the stability of the whole machine is improved; additional cutter action devices do not need to be arranged, the structure is simplified, and the cost is reduced.

Description

technical field [0001] The invention relates to a sealing device, in particular to a packaging sealing device and a packaging machine using the device. Background technique [0002] The sealing device is a machine that seals the packaging bag filled with packaging materials. After the product is loaded into the packaging bag, in order to keep the product sealed and preserved, maintain product quality, and avoid packaging air leakage, the sealing device is used to seal the packaging bag. Widely used in daily chemical product packaging, food and drug packaging and other fields. The sealing device in the prior art generally heats the upper and lower sealers, and cuts the packaging bag after the upper and lower sealers mesh, which mainly has the following disadvantages: [0003] (1) The continuous operation of the sealer has a short contact time with the packaging bag within a working cycle, resulting in insufficient heating of the sealing of the packaging bag, resulting in inc...

AI Technical Summary

Problems solved by technology

[0003] (1) The continuous operation of the sealer has a short contact time with the packaging bag within a working cycle, resulting in insufficient heating of the sealing of the packaging bag, resulting in incomplete sealing of the seal

[0004] (2) Additional pneumatic devices and electromagnetic devices are required for the cutting action of the cutter, which increases the cost of the sealing device, reduces reliability, and complicates the structure

[0005] (3) The eccentricity and spacing of the upper and lower sealing devices cannot be adjusted, and it is difficult to adapt to products to be processed with different thicknesses and lengths, and the sealing device has low adaptability

[0006] (4) When the upper and lower sealers are engaged, the meshing distance between the upper and lower sealers cannot be adjusted according to the thickness of the packaging bag, and because the upper and lower sealers need to be heated, there will be dimensional changes, which may lead to crushing of the package bag surface film

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