Jan 01, 2018· A reversing mill stand as considered in this work is outlined in Fig. 1. The plate is deformed in the roll gap by two work rolls. While the lower roll stack is fixed at the mill stand frame, the upper roll stack can be moved by two hydraulic cylinders to adjust the roll gap height.
Jul 01, 2017· The considered mill stand is outlined in Fig. 1. The plate is deformed in the mill stand and its contour is measured by infrared cameras upstream and downstream the mill stand. The measurement is used to adjust the roll gap by the hydraulic cylinders, i. e., to move the upper backup roll at the drive side (DS) and at the operator side (OS).
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Idlers, also known as side pass or non-driven stands, are offered in a yoke or crevice style roll housing, with either a worm height adjustment or shimmable height adjustment. M-Series The idle side roll supports, arranged for lateral cross adjustment by screw, for proper pressure adjustment with respect to the centerline of the mill.
Sep 01, 1992· In an arrangement for adjusting a roll gap in a rolling mill stand for hot or cold rolling, the arrangement including at least two hydraulic adjusting cylinders which act through chocks from both sides on a work roll to be adjusted, each adjusting cylinder having two or more piston surfaces, and including means for applying pressure medium to one of the piston surfaces individually, to a
The patented Sundwig S6-high side support stabilizes the work rolls in this type of mill stand using mechanical, hydraulic lateral support equipment, thus preventing lateral excursion of these rolls. The diameter of the S6-high work rolls is only approximately 30% of the diameter of the 4-high work rolls and double the diameter of those work rolls
A rolling mill stand has upper and lower work rolls supported in chocks which include liner plates on their side faces for bearing against the side faces of the mill stand housing, with the side faces of the chocks being shaped so that the liner plates on both the upper and lower work roll chocks extend both above and below the pass line defined by the work rolls.
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The subordinate control loop for the hydraulic cylinder is considered as a part of the plant in this paper. Therefore, the control input is the desired cylinder position x d h. The position and the roll force are measured at both sides of the mill stand, i.e., the drive side (DS) and the operator side (OS). Fig. 2
Oct 01, 2020· The static mill stand model is solved by discretization in lateral direction x and by using a tailor-made numerical solver, see Prinz et al. (2018). The second part of the machine model is the dynamic model of the hydraulic cylinders that adjust the height of the roll gap.
Idlers, also known as side pass or non-driven stands, are offered in a yoke or crevice style roll housing, with either a worm height adjustment or shimmable height adjustment. M-Series The idle side roll supports, arranged for lateral cross adjustment by screw, for proper pressure adjustment with respect to the centerline of the mill.
(2) Top mounted hydraulic roll load cylinders with high accuracy position measurement and pressure transducer (4) (3) Stepless bottom mounted passline adjustment (4) Powerful positive and negative roll bending and balancing system attached to the mill housing (5) Modular work roll shifting system (6) Longstroke intermediate roll shifting system
A rolling mill stand has upper and lower work rolls supported in chocks which include liner plates on their side faces for bearing against the side faces of the mill stand housing, with the side faces of the chocks being shaped so that the liner plates on both the upper and lower work roll chocks extend both above and below the pass line defined by the work rolls.
Roll Forming Stand is a group of the main part of roll forming, to support the shafts, rollers, etc. which is fixed on the mill base The approximate position of the upper shafts is shown on a vertical scale fastened to the side of the stand .
At today's demanding condition, maintaining stable operation of rolling mill is becoming difficult. MSD is a hydraulic cylinder installed to mill housing window and press a roll chock against the opposite side with constant force. MSD eliminates gap between roll chocks and mill housing, keep rolls in proper position and stabilize rolls.
Roll stand provided with a displacement device US20090314047A1 (en) * 2006-06-14: 2009-12-24: Siemens Vai Metals Tech Gmbh: Rolling mill stand for the production of rolled strip or sheet metal US20100064754A1 (en) * 2006-10-30: 2010-03-18: Thyssenkrupp Nirosta Gmbh
Jan 09, 2012· This roll gap adjustment needs to be quick and easy and must accommodate the requirement of maintaining the rolls in parallel. Common systems employ screws, cams, or fluid-operated (hydraulic or pneumatic) cylinders to achieve this roll adjustment. Adjustment can be manual or remote operated and may feature some means to display the roll
fore, at each mill stand of the tandem hot rolling mill con-sidered in this paper, the strip thickness can be adjusted by hydraulic cylinders that move the upper roll stack. Ad-ditionally, the mill stands are equipped with a work roll bending system (WRB) to compensate for the bending deection of the work rolls and to control the strip crown. 1.1.
Feb 20, 1973· For screwing down the top rolls 23, 27 between passes for reversing operation of the stand or for coarse adjustment of the roll gap, the stand pre-stressing action produced by the pressure units 19 does not need to be eliminated and it is only necessary to change the pressure in the adjuster cylinders 38 to a minimum value just sufficient to
The mill stand will have built in screw down arrangement for adjustment of roll drafting to be operated separately from both sides of the mill stand for the top and bottom rolls. Wear- plates will be provided in the housing windows. The top rolls will be balanced with the help of Disc springs.
The HRP-Series Roll Frame Press is designed to allow the rolling frame to roll across the press bed for easy loading of large bulky items. Rolling cylinder head allows lateral movements. Quality. High quality hydraulic cylinder and two speed pump for maximum efficiency. Frame Lock.