Assembly for producing a corrugated cardboard web laminated on one side
View Patent ↗An assembly for producing a corrugated cardboard web laminated on one side includes a first corrugating roller and a second corrugating roller for producing a corrugated web. A glue application device applies glue to peaks of the corrugated web and a pressure belt apparatus which in turn includes a pressure belt for pressing a cover sheet against the glued peaks of the corrugated web which rests against the first corrugating roller. The assembly has a pressure belt engaging apparatus including a pressure belt engaging device which engages downwards at the pressure belt during a corrugating roller change to minimize and/or eliminate downwardly sagging of the pressure belt at least adjacent to the pressure belt engaging apparatus, and at least one displacement device in connection with the pressure belt engaging device to displace the pressure belt engaging device between a pressure belt engaging position and an idle position.
1 . An assembly for producing a corrugated cardboard web laminated on one side, the assembly comprising:
a) a first corrugating roller and a second corrugating roller for producing a corrugated web having a corrugation,
b) a glue application device for applying glue to peaks of the corrugation of the corrugated web,
c) a pressure belt apparatus, which comprises
i. a pressure belt for pressing a cover web against the glued peaks of the corrugated web which rests in regions against the first corrugating roller, and
d) a pressure belt engaging apparatus, which comprises
i. a pressure belt engaging device which engages the pressure belt during a corrugating roller change to at least one of minimize and eliminate downwardly sagging of the pressure belt at least adjacent to the pressure belt engaging device, and
ii. at least one displacement device in connection with the pressure belt engaging device to displace the pressure belt engaging device between a pressure belt engaging position and an idle position, wherein the pressure belt engaging apparatus is arranged at the glue application device.
2 . The assembly according to claim 1 , wherein said at least one displacement device is capable to linearly displace said pressure belt engaging device between said pressure belt engaging position and the idle position.
3 . The assembly according to claim 1 , wherein the at least one displacement device is designed as linear displacement device.
4 . The assembly according to claim 1 , wherein the at least one displacement device is variable in its length.
5 . The assembly according to claim 1 , wherein the pressure belt engaging apparatus is arranged outside the pressure belt apparatus.
6 . The assembly according to claim 5 , wherein the pressure belt engaging apparatus is arranged completely outside the pressure belt apparatus.
7 . The assembly according to claim 1 , wherein the pressure belt engaging device in its pressure belt engaging position engages a lower belt of the pressure belt from below.
8 . The assembly according to claim 1 , wherein during a corrugating roller change at least the first corrugating roller is lowered relative to an active corrugating position.
9 . The assembly according to claim 1 , wherein at least one glue application roller of the glue application device is displaceable relative to the first corrugating roller and is arranged offset relative to an active glue application position during a corrugating roller change.
10 . The assembly according to claim 1 , wherein the pressure belt engaging apparatus is arranged at at least one of a glue tray and a glue application device housing of the glue application device.
11 . The assembly according to claim 1 , wherein the pressure belt engaging device, upon displacement between the pressure belt engaging position and the idle position, describes a displacement trajectory which encloses an angle with respect to a horizontal.
12 . The assembly according to claim 11 , wherein the angle is adjustable between 2° and 20° with respect to a horizontal.
13 . The assembly according to claim 11 , wherein the angle is adjustable between 4° and 10° with respect to a horizontal.
14 . The assembly according to claim 1 , comprising an assembly frame, wherein the pressure belt engaging apparatus is arranged at the assembly frame.
15 . The assembly according to claim 14 , wherein the pressure belt engaging apparatus is arranged adjacent to the glue application device at the assembly frame.
16 . The assembly according to claim 14 , wherein the pressure belt engaging apparatus is arranged at second corrugating roller level at the assembly frame.
17 . The assembly according to claim 14 , wherein the pressure belt engaging apparatus is arranged on a side of the second corrugating roller facing away from the glue application device at the assembly frame.
18 . The assembly according to claim 1 , comprising a corrugating roller changing apparatus.
19 . An assembly for producing a corrugated cardboard web laminated on one side, the assembly comprising:
a) a first corrugating roller and a second corrugating roller for producing a corrugated web having a corrugation,
b) a glue application device for applying glue to peaks of the corrugation of the corrugated web,
c) a pressure belt apparatus, which comprises
i. a pressure belt for pressing a cover web against the glued peaks of the corrugated web which rests in regions against the first corrugating roller,
d) a pressure belt engaging apparatus, which comprises
i. a pressure belt engaging device which engages the pressure belt during a corrugating roller change to at least one of minimize and eliminate downwardly sagging of the pressure belt at least adjacent to the pressure belt engaging device, and
ii. at least one displacement device in connection with the pressure belt engaging device to displace the pressure belt engaging device between a pressure belt engaging position and an idle position, wherein the pressure belt engaging apparatus, upon displacement between the pressure belt engaging position and the idle position, describes a displacement trajectory which encloses an angle with respect to a horizontal, and
e) an assembly frame, wherein the pressure belt engaging apparatus is arranged at the assembly frame, wherein the pressure belt engaging apparatus is arranged adjacent to the glue application device at the assembly frame.
20 . The assembly according to claim 19 , wherein the angle is adjustable between 10° and 40° with respect to a horizontal.
21 . The assembly according to claim 19 , wherein the angle is adjustable between 15° and 35° with respect to a horizontal.
22 . An assembly for producing a corrugated cardboard web laminated on one side, the assembly comprising:
a) a first corrugating roller and a second corrugating roller for producing a corrugated web having a corrugation,
b) a glue application device for applying glue to peaks of the corrugation of the corrugated web,
c) a pressure belt apparatus, which comprises
i. a pressure belt for pressing a cover web against the glued peaks of the corrugated web which rests in regions against the first corrugating roller,
d) a pressure belt engaging apparatus, which comprises
i. a pressure belt engaging device which engages the pressure belt during a corrugating roller change to at least one of minimize and eliminate downwardly sagging of the pressure belt at least adjacent to the pressure belt engaging device, and
ii. at least one displacement device in connection with the pressure belt engaging device to displace the pressure belt engaging device between a pressure belt engaging position and an idle position, wherein the pressure belt engaging apparatus, upon displacement between the pressure belt engaging position and the idle position, describes a displacement trajectory which encloses an angle with respect to a horizontal, and
e) an assembly frame, wherein the pressure belt engaging apparatus is arranged at the assembly frame, wherein the pressure belt engaging apparatus is arranged at second corrugating roller level at the assembly frame.
23 . The assembly according to claim 22 , wherein the angle is adjustable between 50° and 80° with respect to a horizontal.
24 . The assembly according to claim 22 , wherein the angle is adjustable between 55° and 75° with respect to a horizontal.