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US 3,975,938 AGranted
Roll changing device for rolling mills or the like
AssigneeSchloemann-Siemag Aktiengesellschaft
InventorsArno Schmidt, Rudolf Mueller
Life of this patent
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Abstract
The disclosure concerns a roll changing device for roll stands of a rolling mill or the like having a pair of working rolls and backing rolls assigned to each working roll in which the roll pairs, including their component bearing parts, can be moved as separate units into and out of the windows of the housings of the mill. A piston cylinder assembly provided for this purpose is arranged in front of the understructure for the support member of the lower backing roll.
Claims7
In a rolling mill or the like having a housing,
- a pair of working rolls,
- a pair of backing rolls for each working roll,
- said rolls being arranged to form a 4-high vertical rolling mill roll arrangement,
- a window in said housing for receiving said rolls in a manner that the work roll as a set of rolls and the backing rolls as a set of rolls can be inserted into and removed from said window, said insertion and removal of said roll sets being performed at different elevational positions with respect to said window,
- a piston cylinder assembly arranged on one side of said housing for independently moving said roll sets into and from said housing, and
- means for adjusting said piston cylinder assembly to bring said piston cylinder assembly into a first working position corresponding to one of said elevational positions to effect said movement of said work roll set and into a second working position corresponding to said other elevational position to effect said movement of said backup roll set.
3 more elements
Dependencies are inferred from the claim text.