Method for forming single heat sealing joint on binding plastic film in plastic sealing pre-binding procedure

Abstract

The invention discloses a method for forming a single heat sealing joint on a binding plastic film in a plastic sealing pre-binding procedure. The method comprises steps as follows: A, arrangement of a plastic film on a rack: the binding plastic film roll is mounted and positioned on a plastic film rack, and the plastic film is wound around a tensioning mechanism and sequentially passes through an upper correction roller, a film limiting assembly, a lower correction roller and a guide roller to be positioned on a waste film rack; B, correcting, aligning, pushing and forming: a bank note stack is driven to move horizontally by a bank note pushing device, and the plastic film is driven to move to be pack-shaped; C, pressurizing, binding, film pressing, wrapping, adhesion and cutting: an embedded pressure head is vertically pressed downwards by a linear drive mechanism, a bank note bundle is formed, the loose plastic film is tensioned by the aid of a floating positioning structure of the embedded pressure head and a rolling matching structure of a pressure roller, and a sealing and cutting device presses downwards to drive the plastic film to perform wrapping, heat adhesion and cutting, so that a binding belt ring is separated from a belt strip; D, leading out of the heat sealing joint and outputting of the bank note bundle: the waste film rack is driven to rotate, so that the heat sealing joint is pulled out of a binding work area, and the waste film rack is braked.

Description

technical field [0001] The invention belongs to the field of financial equipment control, and in particular relates to a banknote plastic sealing and packaging machine, in particular to a method for realizing bundling of plastic films with a single heat-sealing joint in the plastic sealing and pre-binding process. Background technique [0002] At present, the banknote plastic packaging machine commonly used in the market includes three processes: first, wrap ten hundred banknotes with strip plastic film and pre-wrap them into bundles; In the shrink film, it is packaged by means of an L-shaped sealing and cutting mechanism; finally, the packaged banknote bundle is passed through a heat shrinking furnace for heat shrinking treatment. Among them, in the plastic sealing pre-binding process, two plastic film frames respectively equipped with new plastic film rolls are set, and they are thermally synthesized into continuous strips; during specific work, the propulsion mechanism pu...

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Problems solved by technology

[0003] In the above technical solution, there are the following technical defects: ①During the closing process of the plastic film, the plastic film that wraps the upper and lower surfaces of the banknote stack deviates and is not in a state of alignment, resulting in a gap between the upper film and the lower film that binds the plastic film joint. There are gaps between them, especially when there are two joints, the defect of irregular joints will be enlarged; ② During the process of conveying the bundle of pre-wrapped banknotes to the next process, two or more joints will increase the chance of loose bundles

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