High-speed displacement type sealing and cutting assembly

Abstract

The invention discloses a high-speed displacement type sealing and cutting assembly applied to a pillow type packaging machine. The high-speed displacement type sealing and cutting assembly comprises a machine frame (1), an upper cutter shaft (21) and a lower cutter shaft (20), wherein upper transmission eccentric discs (23) are arranged at the two ends of the upper cutter shaft, and lower transmission eccentric discs (22) are arranged at the two ends of the lower cutter shaft. The upper transmission eccentric discs and the lower transmission eccentric discs respectively do eccentric rotation, further, a sealing and cutting upper cutter, a sealing and cutting lower cutter and pillow packaging bags hot sealed between the sealing and cutting upper and lower cutters are driven to respectively and firstly move towards the left side and then move towards the right side for a certain distance, and the hot sealing is kept and lasts for a certain time for ensuring the hot sealing effect. Therefore the integral sealing and cutting speed can be accelerated, the packaging speed can reach more than 180 pieces per minute, in addition, the conveyance 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. ) The lower sealing knife heat-seals and cuts 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, which can only reduce the rotation of the rotary type lower sealing knife. Speed, heat sealing and cutting the packaging film 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 disadvantages, and provide a high-speed displace...

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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. ) The lower sealing knife heat-seals and cuts 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, which can only reduce the rotation of the rotary type lower sealing knife. Speed, heat sealing and cutting the packaging film at the same time, resulting in low work efficiency, generally about 120 pieces per minute

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