EP0476468B1 - Dispositif pour changer les outils de matriçage d'une presse à refouler - Google Patents

Dispositif pour changer les outils de matriçage d'une presse à refouler Download PDF

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Publication number
EP0476468B1
EP0476468B1 EP91115167A EP91115167A EP0476468B1 EP 0476468 B1 EP0476468 B1 EP 0476468B1 EP 91115167 A EP91115167 A EP 91115167A EP 91115167 A EP91115167 A EP 91115167A EP 0476468 B1 EP0476468 B1 EP 0476468B1
Authority
EP
European Patent Office
Prior art keywords
tool
press
carriage
changing device
lifting frame
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
Application number
EP91115167A
Other languages
German (de)
English (en)
Other versions
EP0476468A1 (fr
Inventor
Gerhard Heitze
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0476468A1 publication Critical patent/EP0476468A1/fr
Application granted granted Critical
Publication of EP0476468B1 publication Critical patent/EP0476468B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/085—Accessories for handling work or tools handling of tools
    • 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
    • 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
    • B21B15/0042—Tool changers
    • 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
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses

Definitions

  • the invention relates to a device for changing the pressing tools of an upsetting press for reducing the width of rolled material, in particular the slab width in hot wide strip roughing mills arranged on both sides of the slab edge, the tool carriers receiving the mutually facing pressing tools, the tool carrier and a drive system moving the tool carrier in the direction of the reduction in one lying press frame between scaffold stands, a lifting frame arranged in the area of the pressing tools on a moving carriage with lifting drive for a holder receiving the pressing tool and a movable carrying carriage with at least one storage place for the pressing tool being provided.
  • an upsetting press in which, in order 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.
  • 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 feed drive is designed as a hydraulic drive
  • the movement of the hydraulic cylinder can be controlled particularly advantageously in the form of a path-time function in such a way that the synchronization of the movement of the pressing tool 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 advantageous construction of the upset press ensures its high availability, so that there is a high productivity of the rolling mill in which the upset press is integrated.
  • a tool changing device is described in Japanese Patent Laid-Open JP-A-2-6004 for replacing the pressing tools of a slab press.
  • the changing device consists of a crane truck that can be moved on rails on a separate frame above the slab press.
  • the exchange of the pressing tools takes place in that, for example, a new tool from the tool trolley is attached to the rope of the crane trolley and is lifted up out of the tool trolley with the aid of a cable winch.
  • the tool trolley is moved and then the cable winch is actuated and the new tool is lowered from the crane to the tool carrier and connected to it there.
  • the disadvantage here is that the extremely heavy pressing tool hangs freely swinging on a crane rope during assembly or disassembly.
  • the operating team is at risk.
  • damage may occur due to the tool swinging out on the crane rope the locking device and other equipment on the tool carrier.
  • Automation of the change process from an operator control room is only possible to a limited extent, since the exact positioning of the tool in front of the tool carrier is only possible with great difficulty due to the rope lengthening and the rope vibration.
  • the object of the invention is to further improve the compression press described above, in particular to further increase the availability of the compression press and to largely automate and mechanically carry out the changing of the pressing tools, that is to say without direct manual intervention by the maintenance personnel in the changing process.
  • the generic upsetting press is characterized in that the carriage and the carriage are displaceable by a path-controlled displacement device which is supported on the longitudinal spar of the press frame or on the cross-member and that the linear drive consists of a motor with a gear and pulse counter and from a connection coupling to a shaft mounted in pillow block bearings with at least one pinion engaging in a rack attached to the lifting frame.
  • the linear drive consists of a motor with a gear and pulse counter and from a connection coupling to a shaft mounted in pillow block bearings with at least one pinion engaging in a rack attached to the lifting frame.
  • the travel paths of the carriage and carrier are consequently very precisely controllable, so that all mechanical coupling and end coupling processes of the press tool and tool carrier, the transfer of the press tool from the carriage and the placement of the press tool on the carriage can be carried out very precisely and in any repeatable process.
  • An expedient embodiment consists in the fact that the carriage can be moved on a rail arrangement running longitudinally to the scaffold stands and that the pressing tool holder can be raised and lowered by the lifting drive of the lifting frame through the window of the scaffolding stand in the direction of the pressing tool and that the carrying carriage can be opened a rail arrangement running transversely to the scaffolding stands is movable. In this way, the pressing tool is guided in two defined movement planes, which considerably simplifies the control of the changing process.
  • a particularly expedient embodiment of the changing device for the compression tools of the upsetting press can be seen in the fact that the lifting drive for the lifting frame is arranged on the traversing carriage, which in turn is held in a roller guide on the traversing carriage.
  • the holder for the pressing tool has two lateral tabs which overlap the pressing tool and a central tab which engages under the pressing tool. It is expedient that each side tab of the holder is provided with a recess for receiving a support bolt attached to the side of the pressing tool. The pressing tool is thus gripped from both sides and from below with the holder and secured in this way so that the tool can be released hydraulically and remotely from the tool carrier and is thus released for removal.
  • two storage places for the pressing tool - as seen in the direction of travel of the carrying carriage - are arranged one behind the other on the carrier carriage, so that a new pressing tool is prepared for assembly on the carrier carriage.
  • the worn tool can be placed on the carrier of the lifting frame and moved out of the assembly area, while at the same time the new tool is moved into the assembly area and taken over by the lifting frame bracket.
  • a changing device is assigned to each pressing tool, so that the
  • Tool change in the compression press on the right and on the left side can be carried out independently of one another.
  • 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 stands 6.
  • a crankcase 9 can be adjusted in the stand of the upsetting press.
  • the crankcase is adjusted using a mechanical adjustment 10.
  • a hydraulically acting piston-cylinder construction can also be used as the adjustment device.
  • Pressing tools 7 are arranged on tool carriers 8 on both sides of the slab 2.
  • the press tool and the tool carrier have one in the normal direction, i.e. perpendicular to the slab 2, the reduction drive 11 and a feed drive 12 acting in the tangential direction, that is to say parallel to the slab 2.
  • the reduction drive is formed in that each tool carrier 8 with the aid of a steering system actuated by two eccentric shafts 13 and containing two connecting rods 14, essentially is movable in the direction of the slab to be reduced in width.
  • the two eccentric shafts 13 are mounted in the crankcase and are driven by cardan shafts which are connected to a gear 15 and a drive motor 16.
  • FIG. 2 shows the perspective view of the compression press according to FIG. 1 with the stand 6 or the stand spars, with the mechanical adjustment 10 for the crankcase 9, in which the reduction drive 11 is arranged. Furthermore, the articulated shafts 16 driving the eccentric shafts 13 can be seen, which are connected to the transmission 14 and via a further transmission shaft to the drive motor 15. On the roller table 17, the slab is moved into the compression frame. As soon as the slab has reached the area of the pressing tools, the slab is compressed laterally by the pressing tools which are moved towards one another. To change the highly stressed upsetting tools, an automatically operating tool changing device 18 is provided in the area of the pressing tools, specifically a separate changing device for each pressing tool. The details of this changing device are described below.
  • Fig. 3 and Fig. 4 show in an enlarged view that the device for changing the pressing tools of the upsetting press consists of a lifting frame 20 arranged in the area of the pressing tools 7 on a carriage 19 with lifting drive 21 for a holder 22 accommodating the pressing tool 7 and of one movable carriage 23 with at least one storage place 24, 25 for the pressing tool 7.
  • the carriage 19 can be moved on a rail arrangement 26 running longitudinally to the scaffold stands, consisting of a rail guide 27 with casters 28.
  • a support structure 29 with guide rollers 30 for the lifting frame 20 is fastened to the traversing carriage in such a way that the lifting frame with the holder 22 for the pressing tool 7 can be lifted and lowered through the window of the scaffolding stand 6 in the direction of the pressing tool.
  • the lifting drive 21 for the lifting frame 20 consists of two pinions 32 arranged on a connecting shaft 31.
  • the connecting shaft is mounted in pillow block bearings 33 and is driven by a hydraulic motor 35 with the interposition of a coupling 34, which is also arranged on the carriage.
  • the pinions 32 of the lifting drive each engage in a toothed rack 36 which is arranged on the lifting frame and points vertically into the window between the uprights 6.
  • the lifting frame has two lateral guide rails 37, which correspond to the guide rollers 28 of the support structure 29 of the carriage.
  • the holder 22 of the pressing tool 6 consists of two lateral tabs 38 encompassing the pressing tool and a central tab 39 below the pressing tool.
  • Each of the side straps 38 of the holder is provided with a recess 40 for receiving a support bolt 41 attached to the side of the pressing tool.
  • the carriage 19 is on the longitudinally mounted on the uprights rail arrangement with the help of a path-controlled displacement device 42 z. B. with a hydraulic medium double acting piston-cylinder unit, which is supported on the longitudinal spar of the press frame.
  • the displacement carriage 19 can be moved by the displacement device 42 in the direction of the carrier carriage 23, which can be moved on a rail arrangement 43 running transversely to the stands 6.
  • the wheels 44 of the carrier roll in guide rails 45, which are connected to a crossbar 46, which in turn is fixed on both sides of the uprights 6.
  • the trolley 23 is brought along the rail arrangement 43 by a path-controlled displacement device 47 into predetermined travel positions, one free storage position 24 for receiving the used pressing tool removed from the upsetting press and the other occupied storage space 25 for mounting the reworked pressing tool.
  • the bearing surface 48 of the storage spaces 24, 25 are adapted to the shape of the pressing tool.
  • the change of the pressing tool in the upsetting press takes place as follows:
  • the traversing carriage 19 is pushed into the middle of the upsetting press with the aid of the displacement device 42 with the lifting frame 20 raised by the lifting drive 21.
  • the lifting drive 21 lowers the lifting frame into the stand window for receiving the pressing tool and grips the pressing tool 7 with the holder 22.
  • the pressing tool clamped with spring force on the tool carrier 49 is released hydraulically and the clamping anchors 50 with hammer heads are turned through 90 ° by means of a rotating device twisted and thus release the tool for removal.
  • the released pressing tool rests with the supporting bolts 41 in the recesses in the side plates 38 of the holder and on the central plate 39.
  • the lifting frame and thus the pressing tool stored in the holder are raised.
  • the carriage 19 is moved from the displacement device 42 to the carrier carriage 23.
  • the pressing tool 7 is placed in the free storage position 24 of the carrier.
  • the traversing carriage moves back and thus the way is clear for the transverse movement of the pressing tool with the carrier carriage 23, which is caused by the displacement device 47.
  • the traversing carriage 19 moves forward again and takes over the reworked on the depositing station 25 with the holder 22 of the lifting frame 20 Tool and moves it into the receiving position or assembly position of the tool holder.
  • the reworked pressing tool is now clamped hydraulically with the tool carrier 49 with the aid of the tensioning anchors 50.
  • the carriage 19 moves back a little and the lifting frame 20 with the holder 22 moves upward out of the compression press into the starting position.
  • the tool change in the upsetting press is now complete.
  • the changing of the pressing tools in the upsetting press takes place independently of one another on the right and on the left side, since each side has its own changing device of the construction described above.
  • the hall crane always removes the used press tool from the carrier and the reworked tool in the same position.
  • the removal or loading position is achieved by moving the carrier crosswise into the middle position above the upsetting press and lifting the tool with the aid of the holder 22 of the lifting frame 20.
  • the empty wagon is then again traversed, so that the reworked tool can be placed on the storage space 25 of the wagon.
  • the trolley is then moved again so that the empty storage space 24 is in the middle above the compression press for receiving the used pressing tool.
  • the press tools of the upsetting press can be changed fully automatically by the operating personnel from a control room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Press Drives And Press Lines (AREA)

Claims (10)

  1. Dispositif pour le remplacement d'outils de compression (7) d'une presse à refouler (1) pour la réduction de la largeur de produits à laminer (2), en particulier de la largeur de brammes dans des trains dégrossisseurs à large bande laminée à chaud, comprenant des supports d'outils (8) disposés des deux côtés des brammes, comportant les outils de compression (7) se faisant face, les supports d'outils et un système d'entraînement (11) déplaçant les supports d'outil dans le sens de la réduction étant guidés dans une cage de la presse couchée entre des montants (6) de la cage, un cadre d'élévation (20) comprenant une entraînement d'élévation (21) pour un dispositif de fixation (22) destiné à recevoir l'outil de compression (7), disposé sur un chariot de déplacement (19) à proximité de l'outil de compression (7) et un chariot support (23) mobile comprenant au moins un emplacement de dépôt (24, 25) pour l'outil de compression étant prévus, caractérisé en ce que le chariot de déplacement (19) et le chariot support (23) peuvent être déplacés par un dispositif de déplacement (42, 47) à parcours commandé qui s'appuie sur le longeron longitudinal (6) de la cage de la presse ou sur l'entretoise transversale (46) et en ce que l'entraînement d'élévation (21) est constitué par un moteur (35) avec entraînement et compteur d'impulsions ainsi que par un accouplement (34) pour pouvoir être assemblé à un arbre (31) logé dans des chaises paliers (33) comportant au moins un pignon (32) s'agrippant dans une crémaillère (36) fixée sur le cadre d'élévation (20).
  2. Dispositif pour le remplacement d'outils selon la revendication 1, caractérisé en ce que le chariot de déplacement (19) peut être déplacé sur un dispositif de rails (26) situé le long des montants (6) de la cage, en ce que le dispositif de fixation (22) de l'outil de compression peut être élevé de et abaissé vers l'outil de compression (7) à travers les fenêtres des montants (6) de la cage au moyen de l'entraînement d'élévation (21) du cadre d'élévation (20) et en ce que le chariot support (23) peut être déplacé sur un dispositif de rails (43) situé transversalement par rapport aux montants (6) de la cage.
  3. Dispositif pour le remplacement d'outils selon la revendication 1 ou 2, caractérisé en ce que les rails (27) pour le chariot de déplacement (19) sont disposés sur les longerons longitudinaux (6) de la cage de compression et en ce que les rails (45) pour le chariot support (23) sont disposés sur une entretoise transversale (46) reliée aux longerons longitudinaux (6) de la cage de compression.
  4. Dispositif pour le remplacement d'outils selon la revendication 1, 2 ou 3, caractérisé en ce que le dispositif de déplacement (42, 47) est formé par une unité piston-cylindre pouvant être doublement actionnée par un agent sous pression.
  5. Dispositif pour le remplacement d'outils selon au moins une quelconque des revendications 1 à 4, caractérisé en ce qu'on a disposé sur le chariot de déplacement (19) l'entraînement d'élévation (21) pour le cadre d'élévation (20) qui est maintenu à son tour sur le chariot de déplacement dans un guidage à rouleaux (29, 30).
  6. Dispositif pour le remplacement d'outils selon au moins une quelconque des revendications précédentes, caractérisé en ce que l'entraînement d'élévation (21) est un moteur hydraulique.
  7. Dispositif pour le remplacement d'outils selon au moins une quelconque des revendications précédentes, caractérisé en ce que le dispositif de fixation (22) de l'outil de compression (7) présente deux colliers de fixation (38) s'agrippant latéralement autour l'outil de compression et un collier de fixation (38) s'agrippant au milieu sous de l'outil de compression.
  8. Dispositif pour le remplacement d'outils selon au moins une quelconque des revendications précédentes, caractérisé en ce que chaque collier latéral (38) du dispositif de fixation (22) est pourvu d'un évidement (40) destiné à recevoir un boulon de support (41) disposé latéralement sur l'outil de compression (7).
  9. Dispositif pour le remplacement d'outils selon au moins une quelconque des revendications précédentes, caractérisé en ce qu'on a disposé sur le chariot support (23) deux emplacements de dépôt (24, 25) pour l'outil de compression (7) qui sont disposés l'un derrière l'autre dans le sens du déplacement du chariot support (23).
  10. Dispositif pour le remplacement d'outils selon au moins une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de remplacement (18) est prévu pour chaque outil de compression (7).
EP91115167A 1990-09-17 1991-09-07 Dispositif pour changer les outils de matriçage d'une presse à refouler Expired - Lifetime EP0476468B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4029429 1990-09-17
DE4029429A DE4029429A1 (de) 1990-09-17 1990-09-17 Vorrichtung zum wechseln der presswerkzeuge einer stauchpresse

Publications (2)

Publication Number Publication Date
EP0476468A1 EP0476468A1 (fr) 1992-03-25
EP0476468B1 true EP0476468B1 (fr) 1994-06-15

Family

ID=6414401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115167A Expired - Lifetime EP0476468B1 (fr) 1990-09-17 1991-09-07 Dispositif pour changer les outils de matriçage d'une presse à refouler

Country Status (9)

Country Link
US (1) US5168744A (fr)
EP (1) EP0476468B1 (fr)
KR (1) KR0184291B1 (fr)
CN (1) CN1029091C (fr)
AT (1) ATE107199T1 (fr)
DE (2) DE4029429A1 (fr)
ES (1) ES2055500T3 (fr)
RU (1) RU1831387C (fr)
TW (1) TW237401B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035001A1 (de) * 1990-11-03 1992-05-07 Schloemann Siemag Ag Stauchpresse zur reduktion der breite von brammen in warmbreitband-vorstrassen
US6200245B1 (en) * 1997-11-26 2001-03-13 Ishikawajima-Harima Heavy Industries Co., Ltd. Apparatus and method for changing dies
MY143512A (en) * 2005-08-29 2011-05-31 Gcg Holdings Ltd Eccentric rotary stamping apparatus and method of forming moving sheet metal
DE102005055800B4 (de) * 2005-11-21 2008-01-03 Carl Freudenberg Kg Vorrichtung zur Dämpfung von Torsionsschwingungen und Anordnung
CN105910410A (zh) * 2016-06-29 2016-08-31 中信戴卡股份有限公司 一种毛坯吹水装置
JP6915595B2 (ja) * 2018-07-31 2021-08-04 Ｊｆｅスチール株式会社 スラブの幅圧下方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1331053A (en) * 1969-10-09 1973-09-19 Herbert Ltd A Lathes with automatic tool change facilities
DE2044183C3 (de) * 1970-09-05 1981-06-04 Trumpf GmbH & Co, 7257 Ditzingen Stanzmaschine
AT312397B (de) * 1972-08-08 1973-12-27 Gfm Gesselschaft Fuer Fertigun Vorrichtung zum Wechseln der Werkzeuge bei Schmiedepressen
DE2437248A1 (de) * 1974-08-02 1976-02-12 Schloemann Siemag Ag Vorrichtung zur herstellung von formteilen aus thermoplastischem kunststoff
SU984873A1 (ru) * 1981-08-31 1982-12-30 Предприятие П/Я А-1714 Устройство дл установки и съема штампов
JPS6457728A (en) * 1987-08-28 1989-03-06 Nec Corp Visual inspection device for pellet
JP2656553B2 (ja) * 1988-06-27 1997-09-24 株式会社日立製作所 熱間スラブ幅プレス工具交換装置
DE3837643A1 (de) * 1988-11-05 1990-05-10 Schloemann Siemag Ag Stauchpresse zur schrittweisen querschnittsaenderung von strangfoermigen metallkoerpern, bspw. brammen
DE3917398A1 (de) * 1989-05-29 1990-12-06 Schloemann Siemag Ag Fliegende stauchpresse

Also Published As

Publication number Publication date
DE4029429A1 (de) 1992-03-19
TW237401B (fr) 1995-01-01
RU1831387C (ru) 1993-07-30
ES2055500T3 (es) 1994-08-16
US5168744A (en) 1992-12-08
CN1029091C (zh) 1995-06-28
DE59101931D1 (de) 1994-07-21
KR920006102A (ko) 1992-04-27
KR0184291B1 (ko) 1999-04-01
CN1059855A (zh) 1992-04-01
EP0476468A1 (fr) 1992-03-25
ATE107199T1 (de) 1994-07-15

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