Bag making machine

B - Operations – Transporting – 31 – B

Patent

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Details

B31B 37/14 (2006.01) B26D 1/08 (2006.01) B31B 1/20 (2006.01)

Patent

CA 2582535

A bag making machine for producing plastic bags by processing plastic films by a processing device, wherein it is intended to accurately process plastic films, to protect the processing device from damage, and to save the required time while decreasing the processing rate as little as possible. A driving mechanism is connected to a processing device to drive the latter. Further, a control device is connected to the driving mechanism. After acceleration (.alpha.1) of the driving mechanism, the mechanism is once decelerated (.beta.1). At the start of the processing of plastic films, the processing device is driven at a low speed (V2). Further, as the processing proceeds, the driving mechanism is reaccelerated (.alpha.2) to drive the processing device at a high speed (V3).

Machine fabricatrice de sacs, pour produire des sacs en plastique en traitant des films plastiques à l'aide d'un dispositif de traitement. Ladite machine fabricatrice de sacs vise à traiter les films plastiques de manière précise, à protéger le dispositif de traitement des dégâts, et à économiser le temps nécessaire tout en faisant diminuer la fréquence de traitement le moins possible. Un mécanisme de pilotage est connecté à un dispositif de traitement afin de le piloter. De plus, un dispositif de contrôle est connecté au mécanisme de pilotage. Après une accélération (a1) du mécanisme de pilotage, le mécanisme est ralenti une fois (b1). Au début du traitement des films plastiques, le dispositif de traitement est piloté à basse vitesse (V2). De plus, alors que le traitement suit son cours, le mécanisme de pilotage est à nouveau accéléré (a2) pour piloter le dispositif de traitement à grande vitesse (V3).

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