High-speed continuous sealing and cutting device

Abstract

The invention discloses a high-speed continuous sealing and cutting device applied to a pillow packaging machine. An upper transmission eccentric disc (23) is installed at both ends of an upper cutter shaft, and a lower transmission eccentric disc (23) is installed at both ends of a lower cutter shaft. disc (22); between its input belt assembly and output belt assembly, it is connected successively through the input displacement transmission rod (4), displacement eccentric seat (12), and output displacement transmission rod (9). On the control shaft (24), the displacement control shaft is connected with the main drive assembly. The invention makes the upper transmission eccentric disk and the lower transmission eccentric disk rotate eccentrically, and then drives the upper sealing and cutting knife and the lower sealing and cutting knife, as well as the heat-sealed pillow-type packaging bag between them, to first shift to the left and then to the right Displace a certain distance and keep heat sealing for a certain period of time to ensure the heat sealing effect. Therefore, the overall sealing and cutting speed can be improved, reaching more than 180 pieces per minute, and the transportation is fast and smooth, and the production efficiency is high.

Description

technical field [0001] The invention relates to packaging machinery, in particular to a sealing and cutting device for a pillow packaging machine. technical background [0002] At present, the pillow packaging machine mainly includes a frame, an unwinding device, a material conveying device, a forming device, a middle sealing device, and a sealing and cutting device. To heat seal and cut the packaging film (with materials already loaded) that enters between the lower sealing knife and the upper sealing knife, in order to ensure the heat sealing effect, a certain heat sealing time is required, so the rotation speed of the rotary type lower sealing and cutting can only be reduced. The film is heat-sealed and cut at the same time, resulting in low work efficiency, generally about 120 pieces per minute. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned shortcomings, and provide a high-speed continuous sealing and cutting...

AI Technical Summary

Problems solved by technology

[0002] At present, the pillow packaging machine mainly includes a frame, an unwinding device, a material conveying device, a forming device, a middle sealing device, and a sealing and cutting device. To heat seal and cut the packaging film (with materials already loaded) that enters between the lower sealing knife and the upper sealing knife, in order to ensure the heat sealing effect, a certain heat sealing time is required, so the rotation speed of the rotary type lower sealing and cutting can only be reduced. The film is heat-sealed and cut at the same time, resulting in low work efficiency, generally about 120 pieces per minute

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