Sealing method and sealing device for packaging bag

Abstract

The invention discloses a sealing method and device for a packaging bag, and the method comprises the steps: a material is loaded into a to-be-sealed packaging bag, the material falls into a containing part at the lower part of the to-be-sealed packaging bag, and the upper part of the to-be-sealed packaging bag is a vacant part; the bag receiving seat supports the bottom of a to-be-sealed package, and a bag opening of the to-be-sealed package bag is placed between a first vacuum cavity of the first vacuum block and a first vacuum cavity of the second vacuum block in the horizontal direction; the first vacuum block and the second vacuum block are closed to form a vacuum chamber, and the first vacuum block and the second vacuum block clamp the vacant part, so that a bag opening to be sealed and packaged is placed in a third vacuum cavity of the vacuum chamber; and the vacuum chamber is vacuumized. A first vacuum block, a second vacuum block, a bag receiving seat and a controller are arranged, and the first vacuum block and the second vacuum block are driven to be closed to form a vacuum chamber; the bag receiving base is driven to move so that the bag opening of the packaging bag to be sealed can be located between the first vacuum block and the second vacuum block, and therefore vacuumizing of the packaging bag to be sealed is achieved.

Description

technical field [0001] The invention relates to the technical field of product packaging, in particular to a sealing method and a sealing device for a packaging bag. Background technique [0002] Many products require packaging bags. Taking tea as an example, the current tea packaging bags not only require the tea to be sealed and packaged in the packaging bags, but also require that the packaged tea packaging bags have a regular shape and good packaging effect. [0003] A common tea packaging bag structure is listed, and its structure includes a top edge sealing area on the upper part of the packaging bag, a middle packaging area and a bottom edge sealing area at the bottom of the packaging bag. packaged material. [0004] In the past, most of the packaging methods used manual packaging. In recent years, many packaging machines for tea packaging have appeared, which greatly improved the packaging efficiency and reduced labor costs. For some tea packaging machines that use...

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Problems solved by technology

[0005] In view of the above-mentioned problems, the present application provides solutions to the problems that some tea packaging machines that adopt the principle of vacuum pumping have poor sealing effect when pumping air (vacuum pumping), resulting in unsightly tea packaging and low packaging yield; at the same time, the equipment can be used Simultaneously meet the two functions of shaping and vacuum

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