EP0484783B1 - Device for bracing and balancing the press tool holder and crankcase in an upsetting press - Google Patents
Device for bracing and balancing the press tool holder and crankcase in an upsetting press Download PDFInfo
- Publication number
- EP0484783B1 EP0484783B1 EP91118343A EP91118343A EP0484783B1 EP 0484783 B1 EP0484783 B1 EP 0484783B1 EP 91118343 A EP91118343 A EP 91118343A EP 91118343 A EP91118343 A EP 91118343A EP 0484783 B1 EP0484783 B1 EP 0484783B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crankcase
- linkage
- press
- upsetting
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000969 carrier Substances 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000007688 edging Methods 0.000 claims 2
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 description 28
- 230000006835 compression Effects 0.000 description 19
- 238000007906 compression Methods 0.000 description 19
- 238000010276 construction Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0035—Forging or pressing devices as units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/04—Shaping in the rough solely by forging or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/02—Special design or construction
- B21J7/18—Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction, e.g. for swaging
Definitions
- the invention relates to an upsetting press for reducing the width of rolling stock, in particular for reducing the slab width in hot wide strip roughing mills, with pressing tools carriers arranged on both sides of the rolling stock edge and which can be moved in the direction of the rolling stock reduction with the aid of a crank mechanism.
- pressing tools are arranged on both sides of the slab edge, which are received by tool carriers.
- each pressing tool with the associated tool carrier is moved with the aid of a steering system actuated by a crank mechanism in the direction of reducing the width of the slab, the crank mechanism being arranged in a crankcase.
- the crank mechanism consists of two driven eccentric shafts; A connecting rod is mounted on each eccentric shaft; the connecting rod head is connected to the tool carrier for transmitting the compression forces.
- a feed drive acting essentially in the direction of the slab feed acts on the tool carrier.
- the movement of the pressing tools for the reducing Pressing and for the advancement of the pressing tools can be controlled separately from one another, so that synchronization of the movement of the pressing tools with the movement of the slab to be pressed laterally is ensured for any feed size.
- This upsetting press enables the width of the slab to be continuously reduced to values specified by rolling technology.
- the plain bearing between the connecting rod head and the tool carrier as well as the roller bearings of the eccentric shafts are exposed to high loads and must be designed as free of mechanical play as possible due to the superimposed reduction and feed movement of the pressing tools and due to the high pressing forces.
- the object of the invention is to develop the compression press described at the outset, in particular design measures for bracing tool carriers and crankcase and a balancing of the crankcase on the compression frame, with which the slide bearings between the connecting rod head and the tool carrier as well as the roller bearings are as free of play as possible in any load condition of the compression press and are evenly resilient.
- the upsetting press according to the preamble of claim 1 is characterized in that, for bracing and balancing the pressing tool carrier and the crankcase on the tool carrier, an articulated linkage guided through the crankcase engages approximately in the middle, that at a distance from the central linkage two outer linkages articulated on the crankcase attack and that the central linkage and the outer linkage are connected to such the linkage tensile tensioning devices, which in turn are firmly connected to the crossbar of the uprights of the compression frame.
- the tool carrier is first braced against the connecting rod heads of the crank mechanism, so that any mechanical play in the slide bearing between the connecting rod head and the tool carrier is removed, even in the relieved movement phase, in which the pressing tool is pressed away from the slab edge after pressing is moved.
- the tensioned center linkage also causes a certain load on the roller bearings of the eccentric shafts of the crank mechanism, so that any mechanical play that may be present is also removed from these roller bearings, even in the unloaded movement phase of the pressing tools when they are moved back from the slab edge.
- crankcase is firmly clamped to the crossbar of the compression frame, so that all reaction forces emanating from the pressing process are uniformly introduced into the compression frame of the press.
- the play in the mechanical adjustment in particular the play in the pressure spindle and in the pressure bearing, is also removed.
- the central linkage has a circular guide movably arranged in the crankcase, that on the one hand a pull rod mounted in articulated eyes is arranged on the tool carrier and the round guide and that on the other hand an elastic tracking device of the movement of the tool carrier engages in an articulated manner, which is firmly connected to the crossbeam of the uprights.
- the central rod of the superimposed movement of the pressing tool and the tool carrier can be tracked in the direction of advance of the slab and in the direction of reduction perpendicular thereto, and the tensile forces required for the play-free connection of the tool holder and the connecting rod head and for the play-free mounting of the eccentric shafts can be directly in any movement position of the press tool Crossbar of the scaffold stand are included.
- the tensioning device for the central linkage is a piston-cylinder unit with a pressure accumulator that can be acted upon twice with a hydraulic pressure medium, the piston rod of which is enclosed in an articulated eye provided on the round guide and provided with a ball socket, and the cylinder of which Contact element and support plate is supported on the crossbar.
- the pressure accumulator also enables controllable adaptation of the tensile forces to the movement of the press tool. It is expedient that the piston-cylinder unit assigned to the central linkage has a control device for the tensile forces applied, which is dependent on the drive of the crank mechanism.
- each outer linkage be equally spaced from the central linkage and that the outer linkage also doubles the piston rod one with a hydraulic pressure medium acted upon piston-cylinder unit, wherein the piston rod is framed in an articulated eye arranged on the crankcase and provided with a ball socket and wherein the cylinder is supported on the crossbar by means of contact element and support plate.
- a gimbal-type connection between the crankcase and the piston rod is hereby established, so that pure tensile forces act on the crankcase without bending load components, which is crucial for a safe balancing of the forces.
- the central linkage being attached to the fixed crossbar of the compression frame, the mechanical adjustment of the crankcase is already largely balanced. The still If the mechanical adjustment is not balanced, the two hydraulic cylinders on the outside are then used. It is expedient here that the piston-cylinder unit assigned to each outer linkage has an actively actuable control device with which the mechanical adjustment of the crankcase can be balanced.
- each outer linkage, the crankcase, the crank mechanism and at least the tool carrier can be moved as one structural unit into the assembly or disassembly position.
- the assembly or disassembly position is predetermined by the arrangement of the rail arrangement running transversely between the uprights and on one side of the uprights, on which the structural unit can be moved out of the compression frame onto the construction site.
- each joint eye of the central linkage or outer linkage be arranged in a holder which can be detached from the crankcase, preferably by means of pins and bolts .
- Fig. 1 shows the horizontal section through the overhanging upsetting press 1 for reducing the width of slabs 2 in a hot wide strip roughing mill, the slabs being fed almost continuously from a slab casting plant upstream of the upsetting press but not shown in detail.
- Driver rollers 3, 4 are arranged in front of the upsetting press and behind the upsetting press.
- the slab 2 passes through the slab crushing stand in the with point. 5 provided direction of movement.
- the upsetting press has scaffold stands 6.
- a crankcase 9 can be set in the upsetting frame of the upsetting press between its scaffolding stands.
- Pressing tools 7 are arranged in pressing tool carriers 8 on both sides of the slab 2.
- the press tool and the press tool carrier have one in the normal direction, i.e. perpendicular to the slab 2 acting as a crank drive reduction drive 10 and in the tangential direction, ie parallel to the slab 2 feed drive 11.
- the crank drive is formed by each pressing tool carrier 8 with the aid of a handlebar system operated by two eccentric shafts 12 and containing two connecting rods 22, is essentially movable in the direction of the slab to be reduced in width.
- crank mechanism 10 and crankcase 9 existing unit engages on the press tool carrier an articulated rod 13 guided by the crankcase 9 in the middle and at a distance from this central linkage engage the crankcase 9 with two more articulated outer rods 14, 14 ', the Center linkage 13 and the outer linkage 14, 14 'with such the linkage tensile tensioning devices 15, 16 are connected, which in turn are firmly connected to the crossbar 17 of the uprights 6 of the compression frame 1.
- Fig. 2 shows an enlarged section - partly in section - of the arrangement of the tie rod 18 as part of the central rod.
- the pull rod is mounted on a projection 19 of the pressing tool carrier 8 in an articulated eye 20.
- the other end of the pull rod is mounted in a further articulated eye 20 ', which is connected to a circular guide 21 which is arranged in the crankcase to be longitudinally movable.
- the pull rod 18 is located centrally between the connecting rods 22, which rotate about the eccentricity 24 on the eccentric shafts 12 mounted in roller bearings (not shown).
- the connecting rod heads 25 are seated in slide bearing half-shells 26, which are molded into the press tool carrier 8.
- the pins 27, 27 'of the hinge eyes 20, 20' of the pull rod 18 are mounted in a ball socket, not shown here.
- the other end of the round guide 21 is provided with a further articulated eye 29, which is part of a holder 23, the holder being screwable to the round guide.
- FIG. 3 in continuation of FIG. 2, the circular guide 21 arranged in the crankcase can be seen, and that this circular guide is surrounded by a sliding bush 28 which can be supplied with lubricant.
- the second section of the central linkage 13 is attached.
- This section is also the piston rod 31 of a piston-cylinder unit 32, which is provided with a pressure accumulator, not shown, which can be integrated in this unit, for example, as a gas pressure accumulator.
- the cylinder 33 of the unit 32 is supported on the crossbar 17 with the aid of a contact element 34 and a support plate 35.
- the crossbar consists of a plate welded construction in which the piston-cylinder unit 32 is arranged.
- the tool carrier 8 Via the pull rod 18, the round guide 21 and the piston rod 31, the tool carrier 8 is pulled rearward against the cross member of the compression frame and the pressure accumulator of the piston-cylinder unit 32 acts on the pressing tool carrier 8 like a prestressed spring.
- the connecting rod heads 25 are guided without play in the slide bearing half-shell and, moreover, the play in the roller bearings of the eccentric shafts 12 is removed. All bearings are therefore free of play.
- the mechanical adjustment 30 of the crankcase is also partially balanced.
- the mechanical play is removed from the pressure spindles 45 and from the thrust bearings 46 of the mechanical adjustment using the outer linkage.
- crankcase 9 is also balanced with the aid of the two outer rods 14, 14 ', which are at the same time the piston rods 36, 36' of two piston-cylinder units 37, 37 'which can be pressurized with a pressure medium.
- the cylinders 38, 38 'of these units are supported by means of the contact elements 34', 34 'and by means of the support plate 35 on the crossbar 17 of the compression frame and are arranged in the plate construction of this crossbar. All piston-cylinder units are provided with a feed line 39 and a discharge line 40 for the pressure medium.
- the hinge eyes 41, 41 'of the outer linkage 14, 14' are arranged in a holder 42, 42 'which are releasably connected to the crankcase by means of pins 43, 43' and bolts 44, 44 '.
- the hinge eyes 41, 41 'of the outer linkage 14, 14' are gimbal-mounted.
- the piston-cylinder unit assigned to the center linkage has a control device for the applied tensile forces which is dependent on the drive of the crank mechanism, which is not shown here, nor is the control device assigned to each outer linkage and the associated piston-cylinder unit active for balancing the mechanical adjustment of the crankcase.
- this unit is first of all from the piston-cylinder units 37, 37 'of the outer linkage 14, 14' to a disassembly position X moved after the central linkage has been released from the circular guide.
- the assembly or disassembly position X is predetermined by the position of the rail arrangement on which this structural unit is to be moved transversely to the longitudinal axis of the upsetting press to a construction site.
- a device which surprisingly fulfills several functions side by side, namely the positioning of the pressing tools on the different widths of the slab, the tensioning and balancing of the pressing tool carrier and the crankcase in the compression frame of the compression press and the assembly or Disassembly of crankcase, crank mechanism and tool carrier.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Press Drives And Press Lines (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Metal Rolling (AREA)
Abstract
Description
Die Erfindung betrifft eine Stauchpresse zur Breitenreduktion von Walzgut, insbesondere zur Reduktion der Brammenbreite in Warmbreitband-Vorstraßen, mit beidseitig zur Walzgutkante angeordneten Preßwerkzeuge aufnehmenden Preßwerkzeugträgern, welche mit Hilfe eines Kurbeltriebes in Richtung der Walzgutreduktion bewegbar sind.The invention relates to an upsetting press for reducing the width of rolling stock, in particular for reducing the slab width in hot wide strip roughing mills, with pressing tools carriers arranged on both sides of the rolling stock edge and which can be moved in the direction of the rolling stock reduction with the aid of a crank mechanism.
Bei einer fliegenden Stauchpresse gemäß der gattungsbildenden DE-A- 39 17 398 (& EP-A-0400398) sind zur Reduktion der Breite von Brammen in einer Warmbreitband-Vorstraße zu beiden Seiten der Brammenkante Preßwerkzeuge angeordnet, die von Werkzeugträgern aufgenommen sind. Zur Ausbildung eines Reduktionsantriebes wird jedes Preßwerkzeug mit dem zugehörigen Werkzeugträger mit Hilfe eines von einem Kurbeltrieb betätigten Lenkersystems in Richtung der Breitenreduktion der Bramme bewegt, wobei der Kurbeltrieb in einem Kurbelgehäuse angeordnet ist. Der Kurbeltrieb besteht aus zwei angetriebenen Exzenterwellen; auf jeder Exzenterwelle ist ein Pleuel gelagert; dessen Pleuelkopf steht mit dem Werkzeugträger zur Übertragung der Stauchkräfte in Verbindung. Am Werkzeugträger greift ein im wesentlichen in Richtung des Brammenvorschubs wirkender Vorschubantrieb an. Durch diese Maßnahmen wird der Bewegungsablauf der Preßwerkzeuge für das reduzierende Pressen und für das Vorschieben der Preßwerkzeuge voneinander getrennt steuerbar, so daß für jede beliebige Vorschubgröße eine Synchronisation der Bewegung der Preßwerkzeuge mit der Bewegung der seitlich zu pressenden Bramme gewährleistet ist. Diese Stauchpresse ermöglicht die kontinuierliche Reduktion der Breite der Bramme auf walztechnisch vorgegebene Werte. Die Gleitlagerung zwischen Pleuelkopf und Werkzeugträger sowie die Wälzlagerungen der Exzenterwellen sind hohen Belastungen ausgesetzt und müssen wegen der überlagerten Reduktions- und Vorschubbewegung der Preßwerkzeuge und wegen der hohen Preßkräfte möglichst frei von mechanischem Spiel ausgeführt sein.In a flying compression press according to the generic DE-A-39 17 398 (& EP-A-0400398), to reduce the width of slabs in a hot wide strip roughing mill, pressing tools are arranged on both sides of the slab edge, which are received by tool carriers. To form a reduction drive, each pressing tool with the associated tool carrier is moved with the aid of a steering system actuated by a crank mechanism in the direction of reducing the width of the slab, the crank mechanism being arranged in a crankcase. The crank mechanism consists of two driven eccentric shafts; A connecting rod is mounted on each eccentric shaft; the connecting rod head is connected to the tool carrier for transmitting the compression forces. A feed drive acting essentially in the direction of the slab feed acts on the tool carrier. Through these measures, the movement of the pressing tools for the reducing Pressing and for the advancement of the pressing tools can be controlled separately from one another, so that synchronization of the movement of the pressing tools with the movement of the slab to be pressed laterally is ensured for any feed size. This upsetting press enables the width of the slab to be continuously reduced to values specified by rolling technology. The plain bearing between the connecting rod head and the tool carrier as well as the roller bearings of the eccentric shafts are exposed to high loads and must be designed as free of mechanical play as possible due to the superimposed reduction and feed movement of the pressing tools and due to the high pressing forces.
Aus der europäischen Patentanmeldung EP-A-0 224 333 ist eine Presse zur Verringerung der Breite von warmen Brammen bekannt, bei welcher der das Preßwerkzeug aufnehmende Werkzeugträger von einem Kurbeltrieb beidseitig gegen die Brammenkante bewegt wird. Der Werkzeugträger wird von zwei parallelen Stempeln gehalten, welche mittels eines Gewindes drehbar in einer Traverse geführt sind. Die Stempel werden motorisch von einem außen angeordneten Schneckengetriebe gedreht. Die Traverse ist mit zwei Pleueln einer Exzenterwelle verbunden. Mit dieser Konstruktion soll der Abstand der Preßwerkzeuge zu der Brammenkante unterschiedlich breiter Brammen angepaßt werden, ohne den aus Exzenterwelle und Pleuel bestehenden Kurbeltrieb zu verlagern. Es sind keine Maßnahmen vorgesehen, das in der Gewindeführung oder in den Lagern der Exzenterwelle auftretende mechanische Spiel zu vermeiden. Konstruktive Maßnahmen zur Ausbalancierung der Preßkräfte sind nicht vorgesehen.From the European patent application EP-A-0 224 333 a press for reducing the width of warm slabs is known, in which the tool holder receiving the pressing tool is moved on both sides against the slab edge by a crank mechanism. The tool carrier is held by two parallel punches, which are rotatably guided in a traverse by means of a thread. The stamps are rotated by a worm gear arranged on the outside. The traverse is connected to two connecting rods of an eccentric shaft. With this construction, the distance between the pressing tools and the slab edge of slabs of different widths is to be adjusted without relocating the crank mechanism consisting of the eccentric shaft and connecting rod. No measures are provided to avoid the mechanical play occurring in the thread guide or in the bearings of the eccentric shaft. Constructional measures for balancing the pressing forces are not provided.
Die Aufgabe der Erfindung besteht darin, die eingangs beschriebene Stauchpresse fortzubilden, insbesondere konstruktive Maßnahmen für eine Verspannung von Werkzeugträger und Kurbelgehäuse sowie eine Ausbalancierung des Kurbelgehäuses am Stauchgerüst vorzusehen, mit denen die Gleitlager zwischen Pleuelkopf und Werkzeugträger sowie die Wälzlagerungen in jedem Belastungszustand der Stauchpresse möglichst spielfrei sind und gleichmäßig belastbar sind.The object of the invention is to develop the compression press described at the outset, in particular design measures for bracing tool carriers and crankcase and a balancing of the crankcase on the compression frame, with which the slide bearings between the connecting rod head and the tool carrier as well as the roller bearings are as free of play as possible in any load condition of the compression press and are evenly resilient.
Diese Aufgabe wird mit den Maßnahmen des Patentanspruchs 1 gelöst. Die Gegenstände der Patentansprüche 2 bis 9 dienen der weiteren Ausgestaltung der Erfindung.This object is achieved with the measures of claim 1. The subject matter of
Die Stauchpresse gemäß dem Oberbegriff des Anspruchs 1 ist erfindungsgemäß dadurch gekennzeichnet, daß zum Verspannen und Ausbalancieren von Preßwerkzeugträger und Kurbelgehäuse an dem Werkzeugträger ein gelenkig gelagertes, durch das Kurbelgehäuse geführtes Gestänge etwa mittig angreift, daß mit Abstand zu dem Mittengestänge zwei am Kurbelgehäuse gelenkig gelagerte Außengestänge angreifen und daß das Mittengestänge sowie die Außengestänge mit solchen die Gestänge auf Zug belastbaren Spanneinrichtungen verbunden sind, die ihrerseits mit der Quertraverse der Ständerholme des Stauchgerüsts fest verbunden sind. Durch diese Maßnahme wird zunächst einmal der Werkzeugträger gegen die Pleuelköpfe des Kurbeltriebes verspannt, so daß ein möglicherweise vorhandenes mechanisches Spiel im Gleitlager zwischen Pleuelkopf und Werkzeugträger herausgenommen wird, und zwar auch in der entlasteten Bewegungsphase, in welcher das Preßwerkzeug nach dem Pressen von der Brammenkante weg bewegt wird. Das auf Zug vorgespannte Mittengestänge bewirkt auch eine gewisse Belastung der Wälzlager der Exzenterwellen des Kurbeltriebes, so daß auch aus diesen Wälzlagern ein möglicherweise vorhandenes mechanisches Spiel herausgenommen wird, und zwar auch in der unbelasteten Bewegungsphase der Preßwerkzeuge, wenn diese von der Brammenkante zurückgefahren werden. Diese Maßnahmen vermindern u.a. die mechanischen Geräusche und verhindern einen vorzeitigen Verschleiß der Lager. Ferner wird mit Hilfe der Außengestänge und der zugehörigen Spanneinrichtungen das Kurbelgehäuse fest mit der Quertraverse des Stauchgerüsts verspannt, so daß sämtliche von dem Preßvorgang ausgehenden Reaktionskräfte gleichmäßig in das Stauchgerüst der Presse eingeleitet werden. Auch wird das Spiel in der mechanischen Anstellung, insbesondere das Spiel in der Druckspindel und in dem Drucklager herausgenommen.The upsetting press according to the preamble of claim 1 is characterized in that, for bracing and balancing the pressing tool carrier and the crankcase on the tool carrier, an articulated linkage guided through the crankcase engages approximately in the middle, that at a distance from the central linkage two outer linkages articulated on the crankcase attack and that the central linkage and the outer linkage are connected to such the linkage tensile tensioning devices, which in turn are firmly connected to the crossbar of the uprights of the compression frame. With this measure, the tool carrier is first braced against the connecting rod heads of the crank mechanism, so that any mechanical play in the slide bearing between the connecting rod head and the tool carrier is removed, even in the relieved movement phase, in which the pressing tool is pressed away from the slab edge after pressing is moved. The tensioned center linkage also causes a certain load on the roller bearings of the eccentric shafts of the crank mechanism, so that any mechanical play that may be present is also removed from these roller bearings, even in the unloaded movement phase of the pressing tools when they are moved back from the slab edge. These measures reduce mechanical noise and prevent premature wear the storage. Furthermore, with the help of the outer linkage and the associated tensioning devices, the crankcase is firmly clamped to the crossbar of the compression frame, so that all reaction forces emanating from the pressing process are uniformly introduced into the compression frame of the press. The play in the mechanical adjustment, in particular the play in the pressure spindle and in the pressure bearing, is also removed.
Zur Ausgestaltung der Erfindung ist vorgesehen, daß das Mittengestänge eine im Kurbelgehäuse beweglich angeordnete Rundführung aufweist, daß an dem Werkzeugträger und der Rundführung einerseits eine in Gelenkaugen gelagerte Zugstange angeordnet ist und daß an der Rundführung andererseits eine der Bewegung des Werkzeugträgers elastisch nachführbare Spanneinrichtung gelenkig angreift, die mit der Quertraverse der Ständerholme in fester Verbindung steht. Hierdurch kann das Mittengstänge der überlagerten Bewegung des Preßwerkzeugs und des Werkzeugträgers in Vorschubrichtung der Bramme und in der dazu senkrechten Reduktionsrichtung nachgeführt werden und die zur spielfreien Verbindung von Werkzeugträger und Pleuelkopf sowie zur spielfreien Lagerung der Exzenterwellen erforderlichen Zugkräfte können in jeder Bewegungsposition des Preßwerkzeugs direkt von der Quertraverse des Gerüstständers aufgenommen werden.To develop the invention, it is provided that the central linkage has a circular guide movably arranged in the crankcase, that on the one hand a pull rod mounted in articulated eyes is arranged on the tool carrier and the round guide and that on the other hand an elastic tracking device of the movement of the tool carrier engages in an articulated manner, which is firmly connected to the crossbeam of the uprights. As a result, the central rod of the superimposed movement of the pressing tool and the tool carrier can be tracked in the direction of advance of the slab and in the direction of reduction perpendicular thereto, and the tensile forces required for the play-free connection of the tool holder and the connecting rod head and for the play-free mounting of the eccentric shafts can be directly in any movement position of the press tool Crossbar of the scaffold stand are included.
Eine besonders zweckmäßige Ausgestaltung der Erfindung besteht darin, daß die Spanneinrichtung für das Mittengestänge eine mit einem hydraulischen Druckmedium doppelt beaufschlagbare Kolben-Zylinder-Einheit mit Druckspeicher ist, deren Kolbenstange in ein an der Rundführung befindliches mit einer Kugelpfanne versehenes Gelenkauge eingefaßt ist und deren Zylinder mittels Anlageelement und Stützplatte an der Quertraverse abgestützt ist. Hiermit kann sichergestellt werden, daß mit Hilfe des Mittengestänges konstante Zugkräfte auf den Werkzeugträger aufgebracht sind. Der Druckspeicher ermöglicht auch die steuerbare Anpassung der Zugkräfte an die Bewegung des Preßwerkzeugs. Zweckmäßig ist dabei, daß die dem Mittengestänge zugeordnete Kolben-Zylinder-Einheit eine vom Antrieb des Kurbeltriebes zwangsabhängige Steuereinrichtung für die aufgebrachten Zugkräfte aufweist.A particularly advantageous embodiment of the invention is that the tensioning device for the central linkage is a piston-cylinder unit with a pressure accumulator that can be acted upon twice with a hydraulic pressure medium, the piston rod of which is enclosed in an articulated eye provided on the round guide and provided with a ball socket, and the cylinder of which Contact element and support plate is supported on the crossbar. This can ensure that with With the help of the center linkage constant tensile forces are applied to the tool carrier. The pressure accumulator also enables controllable adaptation of the tensile forces to the movement of the press tool. It is expedient that the piston-cylinder unit assigned to the central linkage has a control device for the tensile forces applied, which is dependent on the drive of the crank mechanism.
Zur einwandfreien Führung des Mittengestänges im Kurbelgehäuse wird gemäß einer konstruktiven Fortbildung der Erfindung vorgeschlagen, daß die Rundführung im Kurbelgehäuse in einer vorzugsweise mit einem Schmiermittel versorgbaren Gleitbüchse geführt ist.For a perfect guidance of the central linkage in the crankcase, it is proposed according to a further construction of the invention that the circular guidance in the crankcase is guided in a slide bushing, which can preferably be supplied with a lubricant.
Mit weiteren Maßnahmen, insbesondere zur kräftemäßigen Ausbalancierung der aus Kurbelgehäuse, Kurbeltrieb, Werkzeugträger und Preßwerkzeug bestehenden Baueinheit innerhalb des Stauchgerüsts der Presse wird vorgeschlagen, daß jedes Außengestänge von dem Mittengestänge gleich weit beabstandet ist und daß das Außengestänge zugleich die Kolbenstange einer mit einem hydraulischen Druckmedium doppelt beaufschlagbaren Kolben-Zylinder-Einheit ist, wobei die Kolbenstange in ein am Kurbelgehäuse angeordnetes mit einer Kugelpfanne versehenes Gelenkauge eingefaßt ist und wobei der Zylinder mittels Anlageelement und Stützplatte an der Quertraverse abgestützt ist. Im Ergebnis wird hierdurch eine kardanisch wirkende Verbindung zwischen Kurbelgehäuse und Kolbenstange hergestellt, so daß reine Zugkräfte ohne Biegelastanteile an dem Kurbelgehäuse angreifen, was für eine sichere Ausbalancierung der Kräfte ausschlaggebend ist. Infolge der Anhängung des Mittengestänges an der feststehenden Traverse des Stauchgerüstes wird bereits zu einem großen Teil die mechanische Anstellung des Kurbelgehäuses ausbalanciert. Die noch fehlende Ausbalancierung der mechanischen Anstellung wird dann von den beiden außen liegenden hydraulischen Zylindern vorgenommen. Zweckmäßig ist hierbei, daß die jedem Außengestänge zugeordnete Kolben-Zylinder-Einheit eine aktiv betätigbare Steuereinrichtung aufweist, mit der die Ausbalancierung der mechanischen Anstellung des Kurbelgehäuses vorgenommen werden kann.With further measures, in particular for force-balancing the structural unit consisting of the crankcase, crank mechanism, tool carrier and pressing tool within the compression frame of the press, it is proposed that each outer linkage be equally spaced from the central linkage and that the outer linkage also doubles the piston rod one with a hydraulic pressure medium acted upon piston-cylinder unit, wherein the piston rod is framed in an articulated eye arranged on the crankcase and provided with a ball socket and wherein the cylinder is supported on the crossbar by means of contact element and support plate. As a result, a gimbal-type connection between the crankcase and the piston rod is hereby established, so that pure tensile forces act on the crankcase without bending load components, which is crucial for a safe balancing of the forces. As a result of the central linkage being attached to the fixed crossbar of the compression frame, the mechanical adjustment of the crankcase is already largely balanced. The still If the mechanical adjustment is not balanced, the two hydraulic cylinders on the outside are then used. It is expedient here that the piston-cylinder unit assigned to each outer linkage has an actively actuable control device with which the mechanical adjustment of the crankcase can be balanced.
Ferner wird vorgeschlagen, daß mit Hilfe der Kolben-Zylinder-Einheit eines jeden Außengestänges das Kurbelgehäuse, der Kurbeltrieb und zumindest der Werkzeugträger als eine Baueinheit in die Montage- bzw. Demontage-Position verschiebbar ist. Die Montage bzw. Demontage-Position ist durch die Anordnung der zwischen den Ständerholmen und auf einer Seite der Ständerholme quer verlaufenden Schienenanordnung vorgegeben, auf der die Baueinheit aus dem Stauchgerüst auf den Bauplatz gefahren werden kann. Zum Zwecke der schnellen Demontage bzw. Montage der Baueinheit, insbesondere des Kurbelgehäuses von/mit dem Mittengestänge und von/mit den beiden Außengestängen wird vorgeschlagen, daß jedes Gelenkauge von Mittengestänge bzw. Außengestänge in einer vom Kurbelgehäuse vorzugsweise mittels Zapfen und Bolzen lösbaren Halterung angeordnet ist.It is further proposed that with the aid of the piston-cylinder unit of each outer linkage, the crankcase, the crank mechanism and at least the tool carrier can be moved as one structural unit into the assembly or disassembly position. The assembly or disassembly position is predetermined by the arrangement of the rail arrangement running transversely between the uprights and on one side of the uprights, on which the structural unit can be moved out of the compression frame onto the construction site. For the purpose of quick disassembly or assembly of the structural unit, in particular the crankcase from / with the central linkage and from / with the two outer linkages, it is proposed that each joint eye of the central linkage or outer linkage be arranged in a holder which can be detached from the crankcase, preferably by means of pins and bolts .
Die Stauchpresse gemäß der vorliegenden Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher beschrieben. Es zeigen:
- Figur 1
- einen Horizontalschnitt durch eine Stauchpresse,
Figur 2- die zwischen Preßwerkzeugträger und Kurbelgehäuse in Gelenkaugen gelagerte Zugstange,
Figur 3- die Anordnung von Mittengestänge und Außengestänge zwischen Kurbelgehäuse und Quertraverse des Stauchgerüsts.
- Figure 1
- a horizontal section through an upsetting press,
- Figure 2
- the pull rod, which is mounted in the eyes between the press tool carrier and the crankcase,
- Figure 3
- the arrangement of central linkage and outer linkage between the crankcase and crossbar of the compression frame.
Fig. 1 zeigt den Horizontalschnitt durch die fliegend arbeitende Stauchpresse 1 zur Reduktion der Breite von Brammen 2 in einer Warmbreitband-Vorstraße, wobei die Brammen nahezu kontinuierlich von einer der Stauchpresse vorgeschalteten, jedoch nicht näher dargestellten Brammengießanlage zugeführt werden. Vor der Stauchpresse und hinter der Stauchpresse sind Treiberrollen 3, 4 angeordnet. Die Bramme 2 durchläuft das Brammenstauchgerüst in der mit Ziff. 5 versehenen Bewegungsrichtung. Die Stauchpresse hat Gerüstständer 6. Ein Kurbelgehäuse 9 ist anstellbar im Stauchgerüst der Stauchpresse zwischen deren Gerüstständern geführt.Fig. 1 shows the horizontal section through the overhanging upsetting press 1 for reducing the width of
Zu beiden Seiten der Bramme 2 sind Preßwerkzeuge 7 in Preßwerkzeugträgern 8 angeordnet. Das Preßwerkzeug und der Preßwerkzeugträger haben einen in Normalrichtung, d.h. senkrecht zur Bramme 2 wirkenden als Kurbeltrieb ausgebildeten Reduktionsantrieb 10 und einen in Tangentialrichtung, also parallel zur Bramme 2 wirkenden Vorschubantrieb 11. Der Kurbeltrieb wird dadurch gebildet, daß jeder Preßwerkzeugträger 8 mit Hilfe eines von zwei Exzenterwellen 12 betätigten Lenkersystems, welches zwei Pleuel 22 enthält, im wesentlichen in Richtung der in der Breite zu reduzierenden Bramme bewegbar ist. Der im wesentlichen in Richtung des Brammenvorschubs wirkende Vorschubantreib 11 greift am Preßwerkzeugträger 8 an und ist am Kurbelgehäuse 9 abgestützt, in welchem die zwei Exzenterwellen 12 gelagert sind.
Zum Verspannen und Ausbalancieren von Preßwerkzeugträger 8 und Kurbelgehäuse 9 am Stauchgerüst 6 der Presse 1 sowie zum Verschieben der im wesentlichen aus Preßwerkzeugträger 8, Kurbeltrieb 10, und Kurbelgehäuse 9 bestehenden Baueinheit greift an dem Preßwerkzeugträger ein gelenkig gelagertes durch das Kurbelgehäuse 9 geführtes Gestänge 13 etwa mittig an und mit Abstand zu diesem Mittengestänge greifen am Kurbelgehäuse 9 zwei weitere gelenkig gelagerte Außengestänge 14, 14′ an, wobei das Mittengestänge 13 sowie die Außengestänge 14, 14′ mit solchen die Gestänge auf Zug belastbaren Spanneinrichtungen 15, 16 verbunden sind, die ihrerseits mit der Quertraverse 17 der Ständerholme 6 des Stauchgerüsts 1 fest verbunden sind.For tensioning and balancing the
Fig. 2 zeigt einen vergrößerten Ausschnitt - teilweise im Schnitt - der Anordnung der Zugstange 18 als Teil des Mittengstänges. Die Zugstange ist an einem Vorsprung 19 des Preßwerkzeugträgers 8 in einem Gelenkauge 20 gelagert. Das andere Ende der Zugstange ist in einem weiteren Gelenkauge 20′ gelagert, welches mit einer Rundführung 21 verbunden ist, die in dem Kurbelgehäuse längsbeweglich angeordnet ist. Die Zugstange 18 befindet sich mittig zwischen den Pleueln 22, welche auf den in nicht näher dargestellten Wälzlagern gelagerten Exzenterwellen 12 um die Exzentrizität 24 drehen. Die Pleuelköpfe 25 sitzen in Gleitlager-Halbschalen 26, welche im Preßwerkzeugträger 8 eingeformt sind. Die Zapfen 27, 27′ der Gelenkaugen 20, 20′ der Zugstange 18 sind in einer hier nicht näher dargestellten Kugelpfanne gelagert. Das andere Ende der Rundführung 21 ist mit einem weiteren Gelenkauge 29 versehen, welches Teil einer Halterung 23 ist, wobei die Halterung mit der Rundführung verschraubbar ist.Fig. 2 shows an enlarged section - partly in section - of the arrangement of the
In Fig. 3 ist in Fortführung von Fig. 2 die in dem Kurbelgehäuse angeordnete Rundführung 21 zu sehen, und daß diese Rundführung von einer mit Schmiermittel versorgbaren Gleitbüchse 28 umgeben ist. An dem Gelenkauge 29 ist das zweite Teilstück des Mittengestänges 13 befestigt. Dieses Teilstück ist zugleich die Kolbenstange 31 einer Kolben-Zylinder-Einheit 32, die mit einem nicht näher dargestellten Druckspeicher versehen ist, der in diese Einheit bspw. als Gasdruckspeicher integriert sein kann. Der Zylinder 33 der Einheit 32 ist mit Hilfe eines Anlageelementes 34 und einer Stützplatte 35 an der Quertraverse 17 abgestützt. Die Quertraverse besteht aus einer Plattenschweißkonstruktion, in der die Kolben-Zylinder-Einheit 32 angeordnet ist. Über die Zugstange 18, die Rundführung 21 sowie die Kolbenstange 31 wird der Werkzeugträger 8 nach hinten gegen die Traverse des Stauchgerüsts gezogen und der Druckspeicher der Kolben-Zylinder-Einheit 32 wirkt auf den Preßwerkzeugträger 8 wie eine vorgespannte Feder. Durch diese konstruktiven Maßnahmen werden die Pleuelköpfe 25 in der Gleitlagerhalbschale spielfrei geführt und außerdem wird das Spiel in den Wälzlagerungen der Exzenterwellen 12 herausgenommen. Sämtliche Lagerungen sind deshalb spielfrei. Infolge der Befestigung des Mittengestänges 13 an der feststehenden Quertraverse 17 des Stauchgerüsts wird außerdem die mechanische Anstellung 30 des Kurbelgehäuses teilweise ausbalanciert. Zusätzlich wird das mechanische Spiel aus den Druckspindeln 45 und aus den Drucklagern 46 der mechanischen Anstellung mit Hilfe der Außengestänge herausgenommen.In FIG. 3, in continuation of FIG. 2, the
Die Ausbalancierung des Kurbelgehäuses 9 erfolgt ferner mit Hilfe der beiden Außengestänge 14, 14′, die zugleich die Kolbenstangen 36, 36′ von zwei mit einem Druckmedium doppelt beaufschlagbaren Kolben-Zylinder-Einheiten 37, 37′ sind. Die Zylinder 38, 38′ dieser Einheiten sind mittels der Anlageelemente 34′, 34˝ sowie mittels der Stützplatte 35 an der Quertraverse 17 des Stauchgerüstes abgestützt und sind in der Plattenkonstruktion dieser Quertraverse angeordnet. Alle Kolben-Zylinder-Einheiten sind mit einer Zuführleitung 39 sowie mit einer Abführleitung 40 für das Druckmedium versehen. Die Gelenkaugen 41, 41′ der Außengestänge 14, 14′ sind in einer Halterung 42, 42′ angeordnet, die mittels Zapfen 43, 43′ sowie Bolzen 44, 44′ lösbar mit dem Kurbelgehäuse verbunden sind. Die Gelenkaugen 41, 41′ der Außengestänge 14, 14′ sind kardanisch gelagert. Die dem Mittengestänge zugeordnete Kolben-Zylinder-Einheit weist eine vom Antrieb des Kurbeltriebes zwangsabhängige Steuereinrichtung für die aufgebrachten Zugkräfte auf, die hier nicht näher dargestellt ist, ebenso nicht näher dargestellt ist die jedem Außengestänge und der zugehörigen Kolben-Zylinder-Einheit zugeordnete aktiv betätigbare Steuereinrichtung zur Ausbalancierung der mechanischen Anstellung des Kurbelgehäuses.The
Soll die im wesentlichen aus Preßwerkzeugträger 8, Kurbeltrieb 10, sowie Kurbelgehäuse 9 bestehende Baueinheit aus dem Gerüstständer der Stauchpresse herausgefahren werden, so wird diese Baueinheit zunächst von den Kolben-Zylinder-Einheiten 37, 37′ der Außengestänge 14, 14′ bis in eine Demontageposition X verschoben, nachdem zuvor das Mittengestänge von der Rundführung gelöst worden ist. Die Montage- bzw. Demontage-Position X wird von der Lage der Schienenanordnung vorgegeben, auf der diese Baueinheit quer zur Längsachse der Stauchpresse zu einem Bauplatz verfahren werden soll. In der Demontage- bzw. Montageposition X werden die Bolzen 44, 44′ aus dem Zapfen 43, 43′ der Halterung 42, 42′ entfernt, so daß die Baueinheit (Kurbelgehäuse, Kurbeltrieb, Preßwerkzeugträger) von dem Mittengestänge und den beiden Außengestängen gelöst ist und somit in der Querrichtung frei beweglich ist.If the unit consisting essentially of
Mit den zuvor beschriebenen Maßnahmen wird eine Vorrichtung geschaffen, die in überraschender Weise mehrere Funktionen nebeneinander erfüllt, nämlich das Anstellen der Preßwerkzeuge auf die unterschiedlichen Breiten der Bramme, das Verspannen und Ausbalancieren des Preßwerkzeugträgers und des Kurbelgehäuses im Stauchgerüst der Stauchpresse und die Montage- bzw. Demontage von Kurbelgehäuse, Kurbeltrieb und Werkzeugträger.With the measures described above, a device is created which surprisingly fulfills several functions side by side, namely the positioning of the pressing tools on the different widths of the slab, the tensioning and balancing of the pressing tool carrier and the crankcase in the compression frame of the compression press and the assembly or Disassembly of crankcase, crank mechanism and tool carrier.
- 11
- StauchpresseUpset press
- 22nd
- BrammeSlab
- 3, 43, 4
- TreiberrollenDriver roles
- 55
- BewegungsrichtungDirection of movement
- 66
- Ständer/GerüstständerStand / scaffold stand
- 77
- PreßwerkzeugPress tool
- 88th
- PreßwerkzeugträgerPress tool carrier
- 99
- KurbelgehäuseCrankcase
- 1010th
- KurbeltriebCrank mechanism
- 1111
- VorschubantriebFeed drive
- 1212th
- ExzenterwelleEccentric shaft
- 1313
- MittengestängeCenter linkage
- 14, 14′14, 14 ′
- AußengestängeOuter linkage
- 1515
- SpanneinrichtungClamping device
- 16, 16′16, 16 ′
- SpanneinrichtungClamping device
- 1717th
- QuertraverseCrossbar
- 1818th
- Zugstangepull bar
- 1919th
- Vorsprunghead Start
- 20, 20′20, 20 ′
- GelenkaugeJoint eye
- 2121
- RundführungTour
- 2222
- PleuelConnecting rod
- 2323
- Halterungbracket
- 2424th
- Exzentrizitäteccentricity
- 2525th
- PleuelkopfConnecting rod
- 2626
- Gleitlager-HalbschalePlain bearing half-shell
- 27, 27′27, 27 ′
- ZapfenCones
- 2828
- GleitbüchseSliding sleeve
- 2929
- GelenkaugeJoint eye
- 3030th
- mechanische Anstellungmechanical adjustment
- 3131
- KolbenstangePiston rod
- 3232
- Kolben-Zylinder-EinheitPiston-cylinder unit
- 3333
- Zylindercylinder
- 34, 34′, 34′′34, 34 ′, 34 ′ ′
- AnlageelementInvestment element
- 3535
- StützplatteSupport plate
- 36, 36′36, 36 ′
- KolbenstangePiston rod
- 37, 37′37, 37 ′
- Kolben-Zylinder-EinheitPiston-cylinder unit
- 38, 38′38, 38 ′
- Zylindercylinder
- 3939
- ZuführleitungSupply line
- 4040
- AbführleitungDischarge line
- 41, 41′41, 41 ′
- GelenkaugeJoint eye
- 42, 42′42, 42 ′
- Halterungbracket
- 43, 43′43, 43 ′
- ZapfenCones
- 44, 44′44, 44 ′
- Bolzenbolt
- 4545
- DruckspindelPressure spindle
- 4646
- DrucklagerThrust bearing
Claims (9)
- Upsetting press (1) for width reduction of rolled stock, in particular for the reduction of the slab width in wide hot strip roughing trains, with press tool carriers (8), which are arranged on both sides of the rolled stock edge and receive press tools (7) and which are movable with the aid of a crank drive (10), in the direction of the reduction of the rolled stock, characterised thereby, that for the bracing and balancing-out of the press tool carrier (8) and the crankcase (9) at the edging stand, an articulatedly borne linkage (13), which is led through the crank-case (9), engages about centrally at the press tool carrier (8), that two outer linkages (14, 14′), which are articulatedly borne at the crankcase (9), engage at a spacing from the middle linkage (13) and that the middle linkage (13) as well as the outer linkages (14, 14′) are connected with such tightening equipments (15, 16, 16′) as load the linkages in tension and are in their turn firmly connected with the crossbeam (17) of the housing posts (6) of the edging stand.
- Upsetting press according to claim 1, characterised thereby, that the middle linkage (13) displays a round guide (21) arranged to be movable in the crankcase (9), that a pull rod (18), which is borne at one end in shackle joints (20, 20′), is arranged at the press tool carrier (8) and at the round guide (21) and that a tensioning equipment (15) able to resiliently track the movement of the press tool carrier (8) engages at the round guide (21) at the other end and stands in firm connection with the crossbeam (17) of the housing posts (6).
- Upsetting press according to claim 1 or 2, characterised thereby, that the tensioning equipment (15) for the middle linkage (13) is a piston-cylinder unit (32) with pressure storage device, which unit is loadable in double-acting manner by an hydraulic pressure medium and the piston rod (31) of which unit is enclosed by a shackle joint (29), which is disposed at the round guide (21) and provided with a ball pan, and the cylinder (33) of which unit is supported at the crossbeam (17) by means of a bearing element (34) and a support plate (35).
- Upsetting press according to claim 1, 2 or 3, characterised thereby, that the round guide (21) is guided in a slide bushing (28), which is preferably suppliable with a lubricant, in the crankcase (9).
- Upsetting press according to at least one of the clains 1 to 4, characterised thereby, tht the piston-cylinder unit (32), which is associated with the middle linkage (13), displays a control equipment for the exerted tension forces, which is constrainedly dependent on the drive of the crank drive (10).
- Upsetting press according to claim 1 to 5, characterised thereby, that each outer linkage (14, 14′) is spaced equally far from the middle linkage (13) and that the outer linkage (14, 14′) is at the same time the piston rod (36, 36′) of a piston-cylinder unit (37, 37′), which unit is loadable in double-acting manner by an hydraulic pressure medium, wherein the piston rod (36, 36′) is enclosed by a shackle joint (41, 41′), which is arranged at the crankcase (9) and provided with a ball pan, and wherein the cylinder (38, 38′) is supported at the crossbeam (17) by means of a bearing element (34′, 34˝) and a support plate (35).
- Upsetting press according to claim 1 to 6, characterised thereby, that the piston-cylinder unit (37, 37′) associated with each outer linkage (14, 14′) displays an actively actuable control equipment for the balancing-out of the mechanical setting of the crankcase (9).
- Upsetting press according to claim 1 to 7, characterised thereby, that the shackle joint (29, 41, 41′) respectively of the middle linkage (13) and the outer linkages (14, 14′) is arranged in a mounting (23, 42, 42′), which is detachable from the crankcase (9), preferably by means of spigots (43, 43′) and bolts (44, 44′).
- Upsetting press according to claim 1 to 8, characterised thereby, that the crankcase (9), the crank drive (10) and the press tool carrier (8) are displaceable as one constructional unit into the assembly or disassembly position (X) by means of the piston-cylinder unit (37, 37′) of each outer linkage (14, 14′).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4035000A DE4035000A1 (en) | 1990-11-03 | 1990-11-03 | DEVICE FOR TENSIONING AND BALANCING THE PRESS TOOL HOLDER AND CRANKCASE OF A SUSPENSION PRESS |
DE4035000 | 1990-11-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0484783A2 EP0484783A2 (en) | 1992-05-13 |
EP0484783A3 EP0484783A3 (en) | 1993-01-13 |
EP0484783B1 true EP0484783B1 (en) | 1994-06-15 |
Family
ID=6417585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91118343A Expired - Lifetime EP0484783B1 (en) | 1990-11-03 | 1991-10-28 | Device for bracing and balancing the press tool holder and crankcase in an upsetting press |
Country Status (7)
Country | Link |
---|---|
US (1) | US5195351A (en) |
EP (1) | EP0484783B1 (en) |
KR (1) | KR0184289B1 (en) |
CN (1) | CN1027740C (en) |
AT (1) | ATE107201T1 (en) |
DE (2) | DE4035000A1 (en) |
ES (1) | ES2055508T3 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970003117B1 (en) * | 1991-02-26 | 1997-03-14 | 기와사끼 세이데쓰 가부시끼가이샤 | Continuous forging apparatus for cast strand |
DE4238154A1 (en) * | 1992-11-12 | 1994-05-19 | Schloemann Siemag Ag | Hydraulic feed drive for flying upsetting presses |
CN100368148C (en) * | 2005-11-15 | 2008-02-13 | 潍柴动力股份有限公司 | Diesel engine crankcase positioning fixture and its positioning method |
RU2393935C1 (en) * | 2009-04-06 | 2010-07-10 | Борис Зельманович БОГУСЛАВСКИЙ | Method of forging with burnishing and device to this end |
CN113305153B (en) * | 2021-05-31 | 2023-06-23 | 安徽马钢重型机械制造有限公司 | Fixed-width press pull rod device of plate strip hot rolling line |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1358200A (en) * | 1971-09-13 | 1974-06-26 | Imp Metal Ind Kynoch Ltd | Apparatus for reducing the thickness of metal |
DE2418526A1 (en) * | 1973-05-10 | 1974-11-28 | Josef Froehling | CYCLOID ROLLING MILL |
SU1036412A1 (en) * | 1982-05-28 | 1983-08-23 | Челябинский Политехнический Институт Им.Ленинского Комсомола | Rolling and forging mill |
JPS62124044A (en) * | 1985-11-22 | 1987-06-05 | Kawasaki Steel Corp | Buckling preventive device of width screw down press for hot slab |
JPS63313623A (en) * | 1987-06-12 | 1988-12-21 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling reduction apparatus for continuously cast slab |
JP2658289B2 (en) * | 1988-11-02 | 1997-09-30 | 石川島播磨重工業株式会社 | Horizontally facing press between runs |
DE3917398A1 (en) * | 1989-05-29 | 1990-12-06 | Schloemann Siemag Ag | FLYING PRESS |
US5046344A (en) * | 1990-01-19 | 1991-09-10 | United Engineering, Inc. | Apparatus for sizing a workpiece |
-
1990
- 1990-11-03 DE DE4035000A patent/DE4035000A1/en not_active Withdrawn
-
1991
- 1991-10-28 DE DE59101939T patent/DE59101939D1/en not_active Expired - Lifetime
- 1991-10-28 AT AT91118343T patent/ATE107201T1/en not_active IP Right Cessation
- 1991-10-28 ES ES91118343T patent/ES2055508T3/en not_active Expired - Lifetime
- 1991-10-28 EP EP91118343A patent/EP0484783B1/en not_active Expired - Lifetime
- 1991-10-29 KR KR1019910019073A patent/KR0184289B1/en not_active IP Right Cessation
- 1991-11-02 CN CN91108397A patent/CN1027740C/en not_active Expired - Lifetime
- 1991-11-04 US US07/787,053 patent/US5195351A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1061169A (en) | 1992-05-20 |
DE59101939D1 (en) | 1994-07-21 |
KR920009463A (en) | 1992-06-25 |
CN1027740C (en) | 1995-03-01 |
DE4035000A1 (en) | 1992-05-07 |
ES2055508T3 (en) | 1994-08-16 |
ATE107201T1 (en) | 1994-07-15 |
US5195351A (en) | 1993-03-23 |
EP0484783A2 (en) | 1992-05-13 |
EP0484783A3 (en) | 1993-01-13 |
KR0184289B1 (en) | 1999-04-01 |
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