Manufacturing method of waterproof soft plastic packaging box

Abstract

The invention discloses a manufacturing method of a waterproof soft plastic packaging box. The manufacturing method of the packaging box comprises the following steps that (1) a plastic plate is cut and formed; (2) a cut and formed main plate and a left side plate are placed on a first heat sealing device to be subjected to heat sealing; (3) the step (2) is repeated to heat-seal the first connecting part on the other side of a bottom plate and a right side plate; (4) a heat-sealed complete plate body is placed on a second heat sealing device, and heat sealing is conducted on second connecting parts on the two sides of a front side plate, the left side plate and the right side plate; and (5) the step (4) is repeated to perform heat sealing on third connecting parts on the two sides of a rear side plate, the left side plate and the right side plate to form a packaging box finished product. The packaging box is composed of the main plate and the two side plates, the main plate is connected with the side plates in a heat sealing mode, the side plates are also connected in the heat sealing mode, a gap between the main plate and the side plates is completely sealed after heat sealing, and the effective waterproof effect can be achieved; and the heat sealing device is adopted for assembling, the assembling process is rapid, the production efficiency is high, and the better connecting quality is achieved compared with manual heat sealing connection.

Description

technical field [0001] The invention relates to a manufacturing method of a packaging box, in particular to a manufacturing method of a waterproof soft plastic packaging box. Background technique [0002] At present, most PP honeycomb panel packaging boxes are assembled by heat-sealing connection. However, when heat-sealing and connecting, it is necessary to manually heat the joint of the honeycomb panel with a hand-held heat gun, and then press and fix it after heating. Not only the production efficiency is low, but the degree of automation is low. , and the quality of the heat-sealed connection of the box is easily affected by the operation of the staff. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides a method for manufacturing a waterproof soft plastic packaging box with high production efficiency and good assembly quality. [0004] The technical solution adopted by the present invention to solve its tec...

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Problems solved by technology

[0002] At present, most PP honeycomb panel packaging boxes are assembled by heat-sealing connection. However, when heat-sealing and connecting, it is necessary to manually heat the joint of the honeycomb panel with a hand-held heat gun, and then press and fix it after heating. Not only the production efficiency is low, but the degree of automation is low. , and the quality of the heat-sealed connection of the box is easily affected by the operation of the staff

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