Method and apparatus for tail threading of a paper web in a finishing machine for paper

摘要

A device in a finishing machine for paper is arranged to guide a paper web along a predetermined path. The traction device ( 2 ) engages a tail of the web or an auxiliary member ( 6 ) for transferring the tail of the web. The device has power transmission of its own by means of which is moves in relation to a guide ( 1 ) extending in the machine direction. The traction device moves in relation to the guide by friction contact of one or several drive wheels ( 3 ) with the guide ( 1 ). The friction contact plane of the guide ( 1 ) curves in directions perpendicular thereto in accordance with the travel path of the paper web.