Apparatus for controlling the nip force/pressure between two rotating cylinders

摘要

An apparatus for controlling the nip force between a fixed roll having a first longitudinal axis and a pivoting roll pivotable about a pivot axis and having a second longitudinal axis is disclosed.

主权项

1. An apparatus for monitoring and controlling the nip force between a fixed roll having a first longitudinal axis, a pivoting roll pivotable about as pivot axis and having a second longitudinal axis, said first longitudinal axis being generally parallel to said pivot axis and said second longitudinal axis when said fixed roll and said pivoting roll are at least in proximate contacting engagement, a load cylinder for adjusting said second longitudinal axis relative to said first longitudinal axis by adjusting a position of said pivoting roll about said pivot axis, and an adjustable stop disposed in a fixed relationship relative to said fixed roll, said apparatus comprising:
a force sensing, device disposed upon said adjustable stop, said force sensing device being capable of measuring a force exerted by said pivoting roll upon said adjustable stop when said pivoting roll is in contacting engagement thereto; a force sensing device disposed between said fixed roll and said pivoting roll capable of measuring a force exerted by said pivoting roll upon said fixed roll when said fixed roll and said pivoting roll are in contacting engagement; and, a controller for adjusting said force disposed upon said adjustable stop by adjusting said position of said adjustable stop relative to said pivoting roll in response to said force exerted by said pivoting roll upon said adjustable stop and said force exerted by said pivoting roll upon said fixed roll when said fixed roll and said pivoting roll are in contacting engagement.