D - Textiles – Paper – 21 – G
Patent
D - Textiles, Paper
21
G
92/4
D21G 1/00 (2006.01)
Patent
CA 2028418
(57) Abstract An actuator (10a, 10b) for calender rolls (3, 4) in a machine calender connected on-line to a paper machine, wherein the said actuator is situated between the calender frame (9) and support arms (11), which adjust the movable calender rolls (3, 4), in order to load and unload the nips (N3, N2) formed by the calender roll (3. 4) in question and its counter roll (3, 2), and to lock the said calender rolls (3, 4) to the top position (3',4'). The said actuator (10a, 10b) is of module construction and consists of a movable frame (13), which forms the frame of the actuator, and which can be connected to the vertical side (9c) of the calender girders (9) so that the vertical position of the movable frame (13) can be adjust- ed. The actuator module is equipped with a double acting hydraulic cylinder (12), which is connected between the movable frame (13) and the support arms (11) of the calender rolls (3, 4) to load and unload the calender nips and to lift the rolls (3, 4) to the top position. The actuator module (10a, 10b) consists of securing pieces, with which the support arms (11) can be locked to a position where the calender rolls (3, 4) connected to them are in their top position (3', 4').
Gowling Lafleur Henderson Llp
Korhonen Osmo
Valmet-Ahlstrom Inc.
LandOfFree
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