Film feeding device and an automatic wrapping device
A conveying device and conveying device technology, applied in the directions of transportation and packaging, transportation packaging, packaging, etc., can solve problems such as difficulties and energy transportation difficulties, and achieve the effects of faster replacement, easier replacement, increased replacement and maintenance convenience.
Inactive Publication Date: 2005-08-03
PESMEL
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Problems solved by technology
It is more difficult to deliver energy to a separate movable membrane carriage than the device in the reference bulletin
Proper placement of the film between guide rollers is an important step due to automation, which is difficult to achieve reliably with a large variety of guide roller replacements
Method used
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[0015] figure 1 The operating principle of the film conveying device 1 is shown, in this description the device 1 will also be referred to as a carriage and the conveying devices 10, 12, 13, 14, 15 will also be referred to as guide rollers. The carriage 1 and guide rollers are shown in a reduced schematic view for the purpose of illustrating the operation. figure 1 A state is shown in which the conveyed film 9 is suitably tensioned. Wherein the tension of the film is predetermined or higher than the predetermined value, and the film is forwarded from the film roll 8, and then wound on the product to be packaged. The ends of the film are connected to the product, and when the carriage 1 moves, the film is simultaneously tensioned by the action of the guide rollers and withdrawn from the film roll 8 .
[0016] A phenomenon that occurs in packaging devices is that the amount of film withdrawn from the film roll always changes at different circular track positions, because the c...
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A wrapping device comprising at least a circular track structure (3) which forms a closed track, and a film feeding device (1) which is arranged to circulate along said track and to feed a film (9) around a piece to be wrapped, wherein the film feeding device (1) comprises a frame structure (2) which is provided with at least means for fixing a film roll (8) in said frame structure in a rotatable manner, and feeding means (12, 13, 14, 15), through which the film (9) is arranged to be fed at a desired film tension. Said frame structure can be disconnected from and reconnected to the film feeding device (1) for the change of the film roll (8), and for the change of the film roll (8), the wrapping device also comprises an automatic change system (21) for the change of said frame structure. Said frame structure is an integrated unit which can be independently disconnected from and reconnected to the film feeding device (1). The carriage device of the wrapping device is intended to carry along the film feeding device (1), and it comprises several carriages placed one after the other and coupled to each other, wherein at least one said frame structure is placed or can be placed in one or more carriages.
Description
technical field [0001] The invention relates to a packaging device as defined in the preamble of claim 1 . The invention also relates to a film feed device of a packaging device as defined in the preamble of claim 15 . The invention also relates to a carriage device of a packaging device as defined in the preamble of claim 17 . The invention also relates to a carriage device of a packaging device as defined in the preamble of claim 21 . Background technique [0002] For packaging various articles such as packaging bands, known packaging devices can be used for packaging with a packaging film, which is a thin transparent stretch film made of plastic. The film roll is usually contained in a film conveyor which in turn rests on a carriage which can move along a circular device and tracks formed on the device, or which can move around the entire product, Alternatively it may pass through an opening in the centerline of the article. [0003] In EP 0936142A2 and the correspond...
Claims
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IPC IPC(8): B65B11/00B65B11/02B65B41/16B65H16/02B65H19/10B65H19/18B65H23/188
CPCB65B41/16B65B11/00B65H2402/60
Inventor H·梅基-拉科拉J·梅基-拉科拉T·托米兰塔
Owner PESMEL