Suction roller system
A suction roller system includes a suction roller and a control head having a ventilation zone situated at a face side of the suction roller. The suction roller system allows rapid ventilation of the suction bores situated on the face side opposite the control head via a cost-advantageous and space-saving expansion. For this purpose, the suction roller is equipped, on the second face side, with a closure plate having an opening that corresponds to the ventilation zone.
1. A suction roller system comprising:
(a) a rotating suction roller having suction channels and a first face side and a second face side opposite to said first face side, said suction channels starting at the first face side, extending through the axial length of the suction roller and ending at the second face side;
(b) a control head situated at the first face side of the suction roller, said control head comprising a suction zone and a ventilation zone separate from said suction zone; and
(c) a closure plate provided on the second face side of the suction roller, said closure plate closing at the second face side those suction channels that are at the first face side actually in air-conducting connection with said suction zone of said control head and said closure elate having an opening which is placed to correspond with the ventilation zone, so that at the second face side additional ambient air may flow through said opening into those suction channels that are at the first face side actually in air-conducting connection with said ventilation zone of said control head.
2. The suction roller system according to claim 1 , wherein the opening of the closure plate has a width that narrows counter to a direction of rotation of the suction roller.
3. The suction roller system according to claim 1 , wherein the second face side of the suction roller corresponds to the closure plate and has a plurality of magnets.
4. The suction roller system according to claim 1 , further comprising a ventilation chamber bordering on a side of the closure plate that faces away from the suction roller.