Abstract: An axial adjustment device for use with a cluster mill stand, including tapered intermediate rolls each of which has a roll neck and a pivot bearing on the roll neck. At least one axial adjusting device is provided which is operable in an axial direction of the intermediate rolls and includes a single shift bar for each pair of intermediate rolls, and a common dog engageable with the intermediate rolls and operable in a direction transverse to the axial direction of the adjusting device, the dog being arranged at the end of the shift bar next to the roll neck for support thereof and for raising and lowering thereof in the direction transverse to the axial direction.
Abstract: A method for producing a channel-shaped trim including a core member embedded within a covering material and having a longitudinally extending opening for embracing and clamping an edge flange of a support member comprising the steps of perforating a plurality of transversely extending slits of which length is made larger at predetermined intervals in a band-shaped metallic plate to form unslit connecting portions of which width is made narrower at predetermined intervals in both side end portions thereof, rolling the unslit connecting portions in a longitudinal direction thereof to form a core member, covering the core member with a covering material, breaking the core member in the narrower connecting portions to divide into a plurality of core pieces, and bending the covered and divided core member into a desired cross-sectional shape of the opening.
Abstract: A rolling mill apparatus and process comprise a plurality of rolls defining a plurality of roll bites defining a gap spacing between adjacent rolls. A fixed gap spacing is employed for at least one roll bite. A floating gap spacing is provided for at least one other roll bite. It is thereby possible to control in a desired manner the amount of thickness reduction at a desired roll bite in a pass through the mill.
Abstract: A tube forming mill, which consists of rolling mechanisms is mounted on movable trucks set or positioned on rails which are laid directionally crossing the material line flow at right angles thereto. The operation of the tube forming mill is as follows: While the rolling process is performed by one rolling mechanism, other rolling mechanism, which is to be used in the following process, is assembled onto the truck located at a position other than the unit rails which are on the material feeding line. After the last coil is passed through the rolling mechanism, the connector of the driving mechanism, which is disposed under the rails, is lowered to cut off the drive and the unit rails, together with the frame, are lifted by the elevating mechanism away from a fixing mechanism until the unit rails come up to the floor level.
March 31, 1980
Date of Patent:
May 4, 1982
Toyota Jidosha Kogyo Kabushiki Kaisha, Kabushikikaisha Mori Tekkosho
Abstract: A method of producing, by universal mills, H-beams which are excellent in the strength and toughness of the joint between web and flanges. In roughing process, symmetric convexes, which have substantially the same cross section and differ in position in different mills, are alternately formed on at least either of the outer and inner sides of the web and flanges of the piece being rolled, to forcibly cause metal flow in the joints between web and flanges and thereby to increase the amount of strain of said joints. In finishing process, the convexes formed in said roughing process are pressed, thereby obtaining a H-beam having predetermined dimensions.
Abstract: A method of making elements with profiled cross-section from sheet metal for use in a driving belt by a rolling process, for providing a strip with a middle groove in longitudinal direction and by rolling the material continuously symmetrically with respect to that groove to two profiles punching out the elements on both sides of the middle groove, with their longitudinal direction in the direction of movement of the strip, according to lines which are located at accurately predetermined distances on both sides of the groove.
February 20, 1980
Date of Patent:
March 23, 1982
Volvo Car B.V.
Jozef W. M. Kummeling, Hermanus A. C. Holweg
Abstract: A rolling mill in which rolls are displaced in axial direction thereof during operation in dependence on the width, profile and the like factors of a material being rolled. A real rolling load difference is derived by removing a rolling load change components due to a moment produced upon displacement of the rolls from a difference in the rolling load between an operating side and a driving side of the rolling mill, and is utilized for correcting the rolling asymmetry.
Abstract: A corrugated plate is disclosed which has trapezoidal corrugations defined by alternating, side by side, relatively thick corrugation peaks and corrugation troughs and relatively thin, inclined corrugation sides which interconnect edges of adjoining peaks and troughs. A method is also disclosed for corrugating the corrugated plate from flat sheet by providing a flat sheet with spaced apart, longitudinally extending, relatively thick sections which thereafter define the corrugation peaks and corrugation troughs or for forming the thick sections by providing a relatively thin sheet and folding over portions of the thin sheet in the areas which ultimately form the corrugation peaks and corrugation troughs so that the latter are defined by a plurality of staked sheet layers.
August 8, 1980
Date of Patent:
March 2, 1982
E. W. Sivachenko
Eugene W. Sivachenko, Firoze H. Broacha
Abstract: A shipping assembly for a hydraulic jack in which the cylinder of the jack is shipped in sections. First and second shipping caps are fastened to predetermined ends of the cylinder sections during shipment, with the first shipping cap utilizing certain of the same cylinder joint fastening hardware which will subsequently be used to join the cylinder sections at the job site. The first and second shipping caps are cooperatively configured to enable them to be assembled into a complete, self-contained shipping package for return to the factory, using the fastening hardware used to secure the second shipping cap to a cylinder section.
Abstract: Wandering of a strip in a hot rolling line is prevented by the provision of a hot roller leveler and a side guide between a finishing mill and a coiler. At least one of the leveler rolls is made angularly adjustable in a horizontal plane and/or in a vertical plane with respect to the strip.
Abstract: Method and apparatus for adjusting roller rings (5) on a roller (4) in exact positions in the peripheral and the axial directions in relation to each other and in relation to the roller (4), and in which the apparatus comprises a parallelogram means (11) which is movable parallelly to the rotatable roller (4) and which comprises an adjustment head (14) having a guide pin (18) adapted to co-operate with the corresponding guide bore (17) in each roller ring, and in which the parallelogram means (11) is supported by a support body (15) which is fixed mounted in relation to the rotatable roller (4) and which comprises both a drive mechanism (14) for positively moving the parallelogram means (11) and a locking means (19) for locking the parallelogram means in an adjusted position and a gauge apparatus (16) for exactly gauging the movements of the parallelogram means (11).
Abstract: The invention is related to a wire drawing device having a plurality of roller die units. Each unit contains two opposing grooved rollers which are respectively mounted in bearing frames which are connected to one another in an opposing fashion by threaded shanks. The shanks are rotatable and function to regulate the distance between the rollers. Each unit is housed in a square frame. The square frames are structured and dimensioned such that they can be serially aligned whereby the radial planes of each adjacent set of grooved rollers are perpendicular to one another thus allowing the distance between adjacent rollers to be less than the diameter of the rollers.
Abstract: A rolling mill comprising a roll stand which supports rolls provided with roll passes for rolling a blank to be rolled which is fed along a rolling line, the roll stand being supported on a stationary base so as to move in axial directions of the rolls perpendicular to the rolling line, wherein the roll stand is provided with rotatable eccentric rods which have rotatable wheels thereon, the rods being rotated to occupy a non-operation position in which the wheels are separated from the base and an operational position in which the wheels contact with the base so as to rotate on the base, thereby to carry the roll stand in axial directions of the rolls.
Abstract: A push bench is provided for the production of tube blooms in which the last roll stands of a plurality of roll stands one behind the other in the direction of pushing have radially adjustably supported rolls, said radially adjustably supported rolls being radially adjustable at the beginning of each working cycle with regard to the diameter or diameter tolerance of the mandrel rod being used for that work cycle.
Abstract: A straightening machine has upper and lower sets of straightening rollers, each backed up by back-up rollers. The back-up rollers are mounted on bearing supports. In one set of straightening rollers, the bearing supports extend parallel to the rollers and all the back-up rollers associated with one straightening roller are mounted on a common support. In the other set of straightening rollers, the bearing supports extend at right angles to the rollers, and each support mounts back-up rollers, each of which is associated with a different one of the straightening rollers. Each of the bearing supports can be moved towards or away from the gap between the upper and lower sets of straightening rollers.
Abstract: A continuous rolling line and method for rolling wires or bars is provided using at least one repeater rolling unit of at least two roll stands having a rolled stock loop between them and a multi-stand continuous rolling unit spaced from and receiving rolled stock from the repeater rolling unit.
Abstract: A method for the operation of rolling mills, which rolls are guided by means of chocks with clearance in the window openings of the uprights. Prior to the appearance of rolling force the chocks (3) are thrust laterally and against their guide surfaces in the uprights the direction of the rolling force component which is oriented in the rolling direction. The rolling operation is then initiated after which the lateral force is removed.
Abstract: A rolling mill roll and method of rolling tubes is provided in which the roll has an annular concave working surface in the outer periphery, said surface having a central annular concave portion of a preselected arc and a pair of side edge annular concave portions on each side of said central portion, said side edge portions having an arc of greater radius than the central portion and thus of lesser curvature than the central portion.
Abstract: Rolling mills for rolling seamless tubes from axially pierced blanks or billets using a restrained mandrel have suffered from a high dead time in the oprating cycle due to the necessity of returning a mandrel-restraining cross-piece or other member from its final position back to its initial position through the roll stands before beginning the positioning of the next billet to be rolled. This invention overcomes the above-mentioned problem by providing an elongate axially extending recess in the mandre-restraining crosspiece which allows the next billet to be positioned before the end of the preceding rolling operation. The mandrel-restraining crosspiece is ready to be connected up immediately to the next billet when the mandrel-restraining crosspiece has returned to its initial working position, by enabling the crosspiece to pass over the billet which goes through the recess.
Abstract: A method and apparatus for controlling a temper-rolled profile of a cold rolled steel strip after continuous annealing, comprising subjecting the continuously annealed cold rolled steel strip simultaneously to temper-rolling and profile controlling by use of a six-high rolling mill of intermediate roll shifting type in the same production line.