Threading the web into a twin wire dryer group

Details Threading the web into a twin wire dryer group Threading the web into a twin wire dryer group

F - Mech Eng,Light,Heat,Weapons

26

B

F26B 13/08 (2006.01) D21F 5/00 (2006.01) D21F 5/04 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2055557

THREADING THE WEB INTO A TWIN WIRE DRYER GROUP ABSTRACT OF THE DISCLOSURE The dry end of a paper making machine includes a twin wire dryer group following a single wire dryer group. The paper web is continuously guided by a support belt which moves alternately between dryer cylinders and intermediate deflecting rolls in the single wire dryer group. In the twin wire dryer group, the web travels over open lengths between dryer cylinders in the two rows of the second group. A rope guide threads the web into the twin wire dryer group. The start of the rope guide, called the rope shears, is in the vicinity of the periphery of the last or next to last deflecting roll called the selected deflecting roll in the single wire dryer group. Between the selected deflecting roll at the start of the rope shears and the preceding selected dryer cylinder, there is a relatively long straight path of travel for the support belt. Parallel to that path, there is a scraper and a guide plate which deflects the edge strip of the web laterally into the rope shears which is laterally to the side of the web. The rope guide then threads the web into the second dryer group.

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