Safety device for a roll space of a calender or similar roll machine
AssigneeKleinewefers GmbH
InventorsHans-Rolf Conrad, Jochen Autrata, Albert Hille
Life of this patent
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Abstract
A safety device for the roll space within a calender or other roll machine is disclosed. The rolls when rotating, excite oscillations in the beam at the resonant frequency of the beam. This can occur during start-up or during normal operation. The safety device of the present invention comprises a beam and additional mass that is oscillatorily suspended from the beam in order to reduce the amplitude of the beam oscillations at the beam resonant frequency. In addition, a damping element between additional mass and the beam is used to reduce any undesired oscillations due to newly created resonant frequencies introduced into the system.
Claims18
A safety device for a roll space of a roll machine comprising:
- a first roller having a longitudinal axis;
- a second roller having a longitudinal axis, said second roller being disposed adjacent to said first roller such that a roller gap is disposed between said first roller and said second roller;
- a beam being disposed in front of said roller gap, said beam having a longitudinal axis that is parallel to said longitudinal axis of said first roller and said longitudinal axis of said second roller, said beam having a predetermined mass, said beam having a mass element fastened thereon, said mass element being connected to said beam by a spring such that said beam and said mass element form a two mass oscillator system.
Dependencies are inferred from the claim text.