A VACUUM BELT CONVEYOR FOR TRANSFERRING A WEB THREADING TAILIN A WEB MANUFACTURING MACHINE

摘要

The invention relates to a vacuum belt conveyor for transferring a web threading tail in a web manufacturing machine. The vacuum belt conveyor comprises a frame construction (15) and an air permeable belt loop (20), which is arrang ed around break back rolls (16, 17). The vacuum belt conveyor also comprises first vacuum means (22) for creating a vacuum effect for the part of the belt loop (20) that transports the web threading tail (14) and second vacuum means (23) for creating a vacuum effect in connection with the first break back roll (16) o f the said break back rolls (16, 17). The second vacuum means (23) are arranged in the frame construction (15) for creating a vacuum to be introduced to the first break back roll (16) inside the belt loop (20).