发明授权
US5325608A Arrangement for the transfer of a traveling web 失效
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Arrangement for the transfer of a traveling web
摘要:
An arrangement for transferring a paper web from the last drying cylinder of a first dryer group to the first dryer cylinder of a second dryer group. The last of the first drying cylinders lies outside a first endless loop porous support belt of the first dryer group. The first of the second drying cylinders lies outside a second endless loop porous support belt of the second dryer group. A first guide roll lies inside the loop of the first belt and is spaced from the first cylinder. A second guide roll lies inside the loop of the second belt, and is spaced from the second drying cylinder and along the path of the first belt between the first drying cylinder and the first guide roll. The second belt wraps around the second guide roll and the web on the first belt contacts the second belt on the path of the first belt toward the first guide roll. An air guide box upstream of the first guide roll directs air against the first belt into a wedge-shaped zone upstream in the travel path of the first belt for helping to transfer the web from the first belt to the second belt. The air guide box may have a stripper to strip air off the first belt, a wall that diverges from the first belt in the path toward the first guide roll, and a deflection surface for deflecting air passing along the first belt at the first guide roll.
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