B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 1/00 (2006.01) B41F 13/40 (2006.01) B41F 33/00 (2006.01)
Patent
CA 2041199
The invention concerns a device for monitoring the operating pressure between the two rotary cylinders (PP, PB) in a machine used for processing matter such as webs, ink films or similar, for instance on an offset printing machine. The device includes a pneumatic jack (2), on which the outlet rod (20) of the piston (21) acting on the positioning of each bearing (12) supporting the end of the central shaft (14) of a cylinder (PP). When a chamber (22) of the jack (2) is subjected to pressure (b1), the rod (20) acts against the shift of the bearing (12), which would entail an increase of the distance between the two cylinders (PP, PB)o A fixed, though, adjustable, arresting piece (4) acts against the shift of the bearing (12) which would cause the reducation of the distance between the cylinders (PP and PB).
L'objet de l'invention est un dispositif pour surveiller la pression de service entre deux cylindres rotatifs (PP, PB) dans une machine utilisée pour le traitement de matériaux comme des toiles, des films d'encre ou des éléments similaires, par exemple sur une machine d'impression offset. Le dispositif comprend un vérin pneumatique (2) sur lequel la tige de sortie (20) du piston (21) agissant sur le positionnement de chaque palier (12) supportant l'extrémité d'un arbre central (14) d'un cylindre (PP). Lorsque la chambre (22) du vérin (2) est soumise à une pression (b1), la tige (20) empêche le déplacement du palier (12) ce qui entraînerait une augmentation de la distance entre les deux cylindres (PP, PB). Une pièce d'arrêt fixe, robuste, réglable (4) empêche le déplacement du palier (12), ce qui entraînerait la réduction de la distance entre les cylindres (PP et PB).
Bobst S.a.
Smart & Biggar
LandOfFree
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