Reversing roll stand having inlet and outlet guides

Abstract

The invention relates to a reversing roll stand ( 20 ), in particular a Steckel reversing roll stand ( 20 ), with at least one upper backing roll and one lower backing roll ( 2, 4 ) and one respective upper and one respective lower working roll ( 1 and 3 ); and with on the input side and on the output side of the stand respective upper supports ( 8 ) juxtaposed with the upper working roll ( 1 ) and connected to an upper-roll frame via a first actuator ( 6 ). In a deviating position from the upper support ( 8 ) a respective hinge-mounted upper scraper ( 11 ) for the upper working roll ( 1 ) is pivotally movable against the upper working roll ( 1 ) by a respective second actuator ( 12 ) carried on each of the upper supports ( 8 ). The upper supports ( 8 ) are each displaceable in respective lower and upper vertical guides ( 9, 10 ) such that the respective first actuator ( 6 ) can draw it out of the lower vertical guide ( 9 ) and it can be pivoted by a third actuator ( 7 ) outward from the upper working roll ( 1 ). The reversing roll stand ( 20 ) furthermore has on the input side of the stand and the output side of the stand for the lower working roll ( 3 ) respective lower scrapers ( 13 ) adjustably pivotal by respective fourth actuators ( 14 ) against the lower working roll ( 3 ).

1 . A reversing Steckel reversing roll stand, with at least one upper backing roll and one lower backing roll and one respective upper and one respective lower working roll; and with on the input side and on the output side of the stand respective upper supports juxtaposed with the upper working roll and connected to an upper region of an upper-roll frame via a first actuator; and that from the upper support a respective hinge-mounted upper scraper for the upper working roll is pivotally movable in a deviating direction against the upper working roll by a respective second actuator carried on each of the upper supports; and the upper supports are each displaceable in respective lower and upper vertical guides such that the respective first actuator can draw it out of the lower vertical guide and it can be pivoted by a third actuator outward from the upper working roll; and the reversing roll stand furthermore has on the input side of the stand and the output side of the stand for the lower working roll respective lower scrapers adjustably pivotal by respective fourth actuators against the lower working roll. 
     
     
         2 . The reversing roll stand according to  claim 1 , wherein the upper support is connected with the first actuator via a coupling to the upper backing roll support beam and can be pulled out of the lower vertical drive. 
     
     
         3 . The reversing roll stand according to  claim 2 , wherein the coupling is a clamping head, ball head, universal joint or a simple mechanical connection. 
     
     
         4 . The reversing roll stand according to  claim 1 , wherein the third actuator is mounted on the rolls stand or on the backing roll support beam and/or on the upper support. 
     
     
         5 . The reversing roll stand according to  claim 1 , wherein the upper scrapers are juxtaposed with the upper working roll, and the scrapers can be adjusted and pressed against the working roll via the respective second actuators. 
     
     
         6 . The reversing roll stand according to  claim 1 , wherein each lower scraper with the respective fourth actuator is arranged such that the actuator presses the scraper against the working roll or moves it away from the working roll and swings it clear of the installation area or removal area of the working rolls. 
     
     
         7 . The reversing roll stand according to  claim 6 , wherein the swinging clear can be upward or downward. 
     
     
         8 . The reversing roll stand according to  claim 1 , wherein the upper and lower scrapers are cardanically mounted. 
     
     
         9 . The reversing roll stand according to  claim 1 , wherein the upper and lower scrapers are arranged to be swung out from between the working roll chocks. 
     
     
         10 . The reversing roll stand ( 20 ) according to  claim 1 , that wherein the actuators are lift cylinders in the form of a hydraulic cylinder or pneumatic cylinder or in the form of a driven spindle. 
     
     
         11 . The reversing roll stand according to  claim 1 , wherein the upper supports are pivotal connecting elements, on each of which one end of a respective one of the lift cylinders with clamping head and one end of a respective one of the second hydraulic cylinders acts.