Film continuation device for film-drawing packaging machine

Abstract

The invention discloses a film continuation device for a film-drawing packaging machine. The film continuation device comprises film sending mechanisms used for installing packaging film rolls and conveying packaging films, a hot melting cut-off mechanism for cutting off the packaging films, and a hot-seal combining mechanism for bonding two packaging film hot seals together. The two film sending mechanisms are oppositely arranged on a side plate. The hot melting cut-off mechanism comprises a film cutting support. A fusing base and press-fit bases are arranged on the film cutting support. The two press-fit bases are symmetrically arranged in the vertical direction with the fusing base as the center. The press-fit bases get away from or close to the fusing base under the effect of a press-fit drive device. The upper side face and the lower side face of the fusing base are each provided with a fusing wire communicating with an external power supply. The hot-seal combining mechanism comprises a film receiving support arranged on the side plate, a film receiving base arranged on the film receiving support, a film receiving drive device and a connection base getting close to or away from the film receiving base under the effect of the film receiving drive device. A hot smelting connection strip is arranged on the side, close to the connection base, of the film receiving base.

Description

technical field [0001] The invention relates to the field of packaging, in particular to a film extension device of a stretch film packaging machine. Background technique [0002] At present, in packaging and other fields, the unwinding of packaging film is usually single-roll release. After the release is about to be completed, stop, cut, re-wind, and release again, and so on. This single-roll release cycle method not only requires Manual real-time attention also needs to judge whether the remaining amount can reach the amount of one packaging, if not, it needs to be cut, which is a waste of material, and once the judgment is inaccurate, the amount of packaging may not be enough, resulting in a failed packaging , needs to be reworked. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a film extension device for a film stretching packaging machine with simple structure, convenient and fast...

AI Technical Summary

Problems solved by technology

[0002] At present, in packaging and other fields, the unwinding of packaging film is usually single-roll release. After the release is about to be completed, stop, cut, re-wind, and release again, and so on. This single-roll release cycle method not only requires Manual real-time attention also needs to judge whether the remaining amount can reach the amount of one packaging, if not, it needs to be cut, which is a waste of material, and once the judgment is inaccurate, the amount of packaging may not be enough, resulting in a failed packaging , need to rework

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