EP0484781B1 - Presse à refouler de brames pour laminoirs à chaud à larges bandes - Google Patents

Presse à refouler de brames pour laminoirs à chaud à larges bandes Download PDF

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Publication number
EP0484781B1
EP0484781B1 EP91118341A EP91118341A EP0484781B1 EP 0484781 B1 EP0484781 B1 EP 0484781B1 EP 91118341 A EP91118341 A EP 91118341A EP 91118341 A EP91118341 A EP 91118341A EP 0484781 B1 EP0484781 B1 EP 0484781B1
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EP
European Patent Office
Prior art keywords
housing
plate
upsetting press
foundation
girder
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
EP91118341A
Other languages
German (de)
English (en)
Other versions
EP0484781A3 (en
EP0484781A2 (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 EP0484781A2 publication Critical patent/EP0484781A2/fr
Publication of EP0484781A3 publication Critical patent/EP0484781A3/de
Application granted granted Critical
Publication of EP0484781B1 publication Critical patent/EP0484781B1/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
    • 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
    • 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
    • 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
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/04—Frames; Guides

Definitions

  • the invention relates to an upsetting press for the reduction of rolling stock, in particular the slab width in hot wide strip roughing mills with pressing tools accommodating pressing tools arranged on both sides to the slab edge, which can be moved in the direction of the slab reduction by a crank mechanism arranged in a crankcase, and with two lower longitudinal stanchions and two upper longitudinal stiles , wherein each lower column longitudinal spar of the upsetting press facing the press foundation has a fixed foundation bearing approximately in the center and at least two floating bearings on the longitudinal side.
  • 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.
  • This upsetting press enables the width of the slab to be continuously reduced to values specified by rolling technology. Upsetting presses of this size can reduce a slab with a width of approx. 2100 mm and a thickness of approx. 265 mm by up to 300 mm in just one pass. As a result of the large compression forces of up to 30 MN and under the influence of heat, the horizontal compression structure must be able to stretch without exerting forces on the foundation. Furthermore, the crankcase, from which the pressing forces are introduced into the slab, must not move in its guide play during the pressing process, so that a desired width tolerance of the reduced slab with high edge quality can also be guaranteed in continuous operation.
  • the upsetting press has two horizontal press stands with upper and lower longitudinal columns, the lower of which face the press foundation.
  • the upsetting press has two horizontal press stands with upper and lower longitudinal columns, the lower of which face the press foundation.
  • They For the purpose of free expansion of the lower uprights, they have a fixed foundation approximately in the middle and two floating bearings with sliding plates are arranged in the area of the uprights on both sides of the uprights. Further details about the detailed design of fixed or floating bearings are missing. There is also no information about locking a crankcase with the press stand.
  • the object of the invention is to construct the compression press according to the preamble of claim 1 in such a way that the action of the pressing forces, in particular also the mass forces, and the action of heat on the compression frame and on the crankcase do not damage the press or cause any damage Reduction of the quality of the compressed slab or the edge quality leads and that a predetermined width tolerance of the compressed slab can be guaranteed.
  • This object is achieved in the compression press mentioned at the outset with the features of claim 1.
  • the features of the following claims 2 to 10 serve the further configuration of the upsetting press.
  • the above-mentioned compression press is characterized in that the crankcase can be locked between the upper and lower longitudinal stanchions by means of releasable clamping devices.
  • the pressing forces generated during the pressing process and the mass forces resulting from the moving masses are initially absorbed by the crankcase, which is firmly clamped in the scaffold stand, passed into the longitudinal struts and absorbed by them.
  • possible longitudinal strains of the uprights caused by the pressing forces can be intercepted by several floating bearings. In this way, thermal expansions during hot operation of the upsetting press can be absorbed in such a way that the lateral upsetting of the slabs leads to consistently good upsetting results.
  • each lower upright longitudinal spar has lateral claws approximately in the middle of the spar and is supported on a fitting plate in a bearing plate connected to the foundation with the spar leading side plates, that the lateral claws engage in the side plates and that the claws can be clamped to the bearing plate by means of connecting elements - preferably with screw connections.
  • the side of the lower upright longitudinal strut facing the foundation in this area has a metal pressure plate, that in this area an opposite side with the foundation connected bearing plate has a metal pressure plate, and that between the metal pressure plates, a rustproof, polished metal plate and a slide plate made of plastic with cavities arranged on the sliding surface with lubricant-fillable cavities - preferably made of polytetrafluoroethylene (PTFE) - are arranged, each in one of the metal pressure plates are inserted.
  • PTFE polytetrafluoroethylene
  • the cavities arranged on the upper sliding surface of the PTFE sliding plate with a lubricant are particularly advantageous.
  • the effect of the so-called micro friction between the sliding surfaces of such a support can be significantly reduced.
  • the metal pressure plates are made of stainless steel, which are glued and screwed to the spar or to the bearing plate.
  • the measures of the stand of the upsetting press are largely protected against corrosion by these measures. It is also advantageous if the screw heads embedded in the pressure plates are chambered with a sealing filling compound before the polished metal plate or the PTFE sliding plate are inserted into the pressure plates.
  • the floating bearing connected to the bearing plate, the side member leading side pillars, that standing bores are arranged in bores of lateral claws of the pillar longitudinal members, which stand on the bearing plate and the other end of which is a short distance above the claw has a counter plate that on the counter plate a screw connection reaching into the bearing plate or into the foundation is supported and that between the claws and the side plates sliding fitting plates are arranged against each other.
  • the clamping devices for the crankcase are hydraulic clamping cylinders, which can be adjusted depending on the pressing forces so that the crankcase does not move back and forth in the guiding play during the pressing process. It is expedient here if the hydraulic clamping cylinders are located on each upper longitudinal side of the crankcase, opposite the underside of the upper stator longitudinal bar and are arranged between a guide rail fastened to the crankcase, spanning the lower stator longitudinal bar at a distance, and the outside of each lower stator longitudinal bar. The crankcase is laterally clamped by the two hydraulic clamping cylinders and pressed by the four hydraulic clamping cylinders on the two lower longitudinal pillars.
  • a sliding plate is advantageously arranged between the clamping cylinder and the respective clamping surface and it is further provided that the crankcase is on the the lower upright longitudinal spars by means of sliding plates so that the consequences of wear from the constant micro friction between the clamping cylinder and the clamping surface remain as small as possible.
  • the side view of the upsetting press 1, partially shown in section in FIG. 1, shows a horizontal scaffold stand 2 with two lower uprights 3 and two upper uprights 4 and cross members 5 which connect the uprights to one another.
  • a crankcase 7 is arranged on both sides of a longitudinal slab 3, 4 on both sides of a slab 6 to be reduced in width, which has a mechanical adjustment (not shown) and a Balancing device 8 is supported on the crossbar 5 of the scaffold stand.
  • Two eccentric shafts 9 with pressure connecting rods 10 are mounted in the crankcase 7.
  • the connecting rod heads 11 are connected to a tool carrier 12 for the pressing tools 13. With the help of the pressing tools 13 and with the help of the pressing forces emanating from the crank drive, the slab 6, which is transported by driving rollers 14 through the upsetting press, is reduced in width.
  • the pressing forces are transmitted to the eccentric shafts by a motor and transmission arrangement 15 with the aid of cardan shafts 16.
  • the lower uprights 3 are supported on the foundation 17 several times.
  • support is provided with the aid of a fixed bearing 18, followed on both sides of the stand by a floating bearing 19 with lateral guidance, a floating bearing 20 without lateral guidance and a floating bearing 19 with lateral guidance.
  • releasable clamping devices 21 are arranged between the lower upright longitudinal members 3 and the upper upright longitudinal members 4.
  • Fig. 2 shows a bearing plate 22 connected to the foundation 17 for the central fixed bearing 18 and two adjacent floating bearings 19 with side guides for the two lower longitudinal pillars 3.
  • the longitudinal section along the line III-III in Fig. 2 shows in Fig. 3 that for the purpose of forming the fixed bearing 18, each lower upright longitudinal bar has lateral claws 23 approximately in the middle of the bar, and that it is supported on a fitting plate 24 on the bearing plate 22 connected to the foundation 17 with two lateral side plates 25 leading the spar.
  • the lateral claws 23 of the longitudinal longitudinal spar engage in the side plates 25 and the claws 23 are firmly clamped to the bearing plate 22 by means of the screw connections 26.
  • the longitudinal section along the line IV-IV in Fig. 2 shows in Fig.
  • the polished metal plate and the PTFE sliding plate are each inserted in one of the metal pressure plates 27, 28.
  • the metal pressure plates 27, 28 are made of stainless steel and are glued to the lower longitudinal stile 3 or to the bearing plate 22 and, as shown in FIG. 5, screwed to the stile or to the bearing plate with screws 32.
  • the screw head countersunk in the pressure plates 27, 28 is additionally chambered with a filling compound, so that possible corrosion at the connection points of the bearing elements is excluded as far as possible. It can be seen that Fig. 5 shows the bearing elements of a non-locating bearing without side guide for the longitudinal pillar.
  • the floating bearing shown there with a side guide has two side plates 33 connected to the bearing plate 22, which guide the longitudinal stile 3, and also lateral claws of the longitudinal stile, in which holes 35 for so-called standing bushes 36 are arranged.
  • These standing bushes stand on the bearing plate 22 and have a counter plate 37 at their other end at a short distance above the lateral claws 34.
  • a screw connection 38 reaching into the bearing plate 22 or into the foundation 17 is supported on the counter plate 37.
  • crankcase 7 shows, based on a partial section, the crankcase 7 as well as the lower longitudinal stile 3 and the upper longitudinal stile 4.
  • the crankcase is locked by means of releasable clamping devices 21 between the upper and the lower longitudinal stile.
  • These clamping devices are hydraulic clamping cylinders 41. These are located on each upper longitudinal side 42 of the crankcase 7, opposite the underside of the upper longitudinal column 4.
  • a guide rail 43 which extends across the lower stator longitudinal beam 3 is arranged laterally on the outside 49.
  • the hydraulic clamping cylinder 41 is arranged between this guide rail and the outer side 44 of the lower longitudinal column.
  • a sliding plate 45 is arranged between the respective clamping cylinder 41 and the clamping surface interacting therewith.
  • the crankcase 7 lies on the lower longitudinal stile 3 by means of a pair of sliding plates 46, 47 on. With the help of the sliding plates 45, 46, 47, possible wear, which can be attributed to constant micro-friction, is largely avoided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Forging (AREA)
  • Press Drives And Press Lines (AREA)
  • Crushing And Grinding (AREA)

Claims (10)

  1. Presse refouleuse (1) pour la réduction d'un produit laminé (6), en particulier la réduction en largeur des brames dans un train ébaucheur à chaud pour des bandes larges, comprenant des porte-outils (12) qui reçoivent des outils de presse (13) agencés des deux côtés au bord des brames, lesdits porte-outils étant déplaçables en direction d'une réduction des brames à l'aide d'au moins un système à bielles agencé dans un boîtier de bielles (7), et comprenant deux longerons de support inférieurs (3) et deux longerons supérieurs (4), dans laquelle chacun des longerons de support inférieurs (3) dirigés vers la fondation (17) de la presse refouleuse (1), comporte approximativement au centre un dispositif de montage fixe (18) par rapport à la fondation, et dans le sens longitudinal au moins deux dispositifs de montage détachables (19, 20), caractérisée en ce que le boîtier de bielles (7) peut être arrêté entre les longerons de support inférieurs et supérieurs (3, 4) au moyen de dispositifs de serrage détachables (21).
  2. Presse refouleuse selon la revendication 1, caractérisée en ce que, dans le but de réaliser le dispositif de montage fixe (18), chaque longeron de support inférieur (3) comporte approximativement au milieu des pattes latérales (23), et est supporté sur une plaque d'adaptation (24) dans une plaque de montage (22) reliée à la fondation (17) avec des plaques latérales (25) qui guident le longeron, en ce que les pattes latérales (23) s'engagent dans les plaques latérales (25), et en ce que les pattes (23) peuvent être serrées avec la plaque de montage (22) au moyen d'éléments de liaison (26) de préférence des liaisons à vis.
  3. Presse refouleuse selon l'une ou l'autre des revendications 1 et 2, caractérisée en ce que, dans le but de réaliser le dispositif de montage détachable (19, 20), le côté du longeron du support inférieur (3) orienté dans cette région vers la fondation (17) comporte une plaque d'appui métallique (27), en ce qu'une plaque de montage (22), située à l'opposé de cette région et reliée à la fondation, comporte une plaque d'appui métallique (28), et en ce qu'il est prévu entre les plaques d'appui (27, 28) uns plaque métallique (29) inoxydable polie ainsi qu'une plaque de coulissement (30) en matière plastique qui présente dès cavités (48) agencées sur la surface de coulissement (31) et susceptibles d'être remplies de lubrifiant, de préférence en polytétrafluoroéthylène (PTFE), ces deux plaques étant respectivement insérées dans l'une des plaques d'appui métalliques (27, 28).
  4. Presse refouleuse selon l'une quelconque des revendications 1, 2 ou 3, caractérisée en ce que les plaques d'appui métalliques (27, 28) sont constituées en acier inoxydable, et sont collées et vissées aux longerons de support inférieurs (3), ou à la plaque de montage (22).
  5. Presse refouleuse selon l'une au moins des revendications 1 à 4, caractérisée en ce que le dispositif de montage détachable (19) comporte des plaques latérales (33) reliées à la plaque de montage (22) et guidant le longeron de support (3), en ce que des douilles verticales (36) sont agencées dans des perçages (35) des pattes latérales (34) des longerons de support, ces douilles dépassant verticalement sur la plaque de montage (22) et présentant à leur autre extrémité et à faible distance au-dessus des pattes (34) une contre-plaque (37), en ce qu'une liaison vissée qui pénètre dans la laque de montage (22) ou dans la fondation (17) s'appuie contre la contre-plaque (37), et en ce que des plaques d'adaptation (46, 47) qui coulissent l'une contre l'autre sont agencées entre les pattes (34) et les plaques latérales (33).
  6. Presse refouleuse selon l'une au moins des revendications 1 à 5, caractérisée en ce qu'elle comprend, en partant des deux côtés depuis le dispositif de montage fixe (18), une succession de dispositifs de montage détachables (19) avec guidage latéral du longeron de support, et de dispositifs de montage détachables (20) sans guidage latéral du longeron de support.
  7. Presse refouleuse selon l'une au moins des revendications 1 à 6, caractérisée en ce que les dispositifs de serrage (21) pour le boîtier de bielles (7) sont des cylindres de serrage hydrauliques (41).
  8. Presse refouleuse selon l'une au moins des revendications 1 à 7, caractérisée en ce que les cylindres de serrage hydrauliques (41) sont situés sur chaque coté longitudinal supérieur (42) du boîtier de bielles (7), en vis-à-vis du côté inférieur du longeron de support supérieur (4), et sont agencés entre le côté extérieur (44) de chaque longeron de support inférieur (3), et un rail de guidage (43) fixé au boîtier de bielles (7) et recouvrant à distance le longeron de support inférieur (3).
  9. Presse refouleuse selon l'une au moins des revendications 1 à 8, caractérisée en ce qu'une plaque de coulissement (45) est agencée entre chaque cylindre de serrage (41) et la surface de serrage correspondante.
  10. Presse refouleuse selon l'une au moins des revendications 1 à 9, caractérisée en ce que le boîtier de bielles (7) repose au moyen de plaques de glissement (46, 47) sur les longerons de support inférieurs (3).
EP91118341A 1990-11-03 1991-10-28 Presse à refouler de brames pour laminoirs à chaud à larges bandes Expired - Lifetime EP0484781B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4035002A DE4035002A1 (de) 1990-11-03 1990-11-03 Brammen-stauchpresse fuer warmbreitband-walzwerke
DE4035002 1990-11-03

Publications (3)

Publication Number Publication Date
EP0484781A2 EP0484781A2 (fr) 1992-05-13
EP0484781A3 EP0484781A3 (en) 1993-01-13
EP0484781B1 true EP0484781B1 (fr) 1995-08-30

Family

ID=6417587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118341A Expired - Lifetime EP0484781B1 (fr) 1990-11-03 1991-10-28 Presse à refouler de brames pour laminoirs à chaud à larges bandes

Country Status (9)

Country Link
US (1) US5226307A (fr)
EP (1) EP0484781B1 (fr)
KR (1) KR100190344B1 (fr)
CN (1) CN1027742C (fr)
AT (1) ATE127047T1 (fr)
DE (2) DE4035002A1 (fr)
RU (1) RU1839643C (fr)
TW (1) TW197967B (fr)
UA (1) UA13483A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101028643B (zh) * 2006-02-27 2010-05-12 福光企业股份有限公司 具有无间隙滚动装置的锻造零件成型机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261197A (en) * 1963-11-13 1966-07-19 Chambersburg Eng Co Vibration absorbing stress means for horizontal ram impacters
DE2345526A1 (de) * 1973-09-10 1975-03-20 Schirmer & Plate Sattelwechwelsystem fuer einen horizontalen, hydraulischen schmiedeautomaten
AT321064B (de) * 1973-09-25 1975-03-10 Gfm Fertigungstechnik Schmiedepresse mit einem liegenden Maschinengestell
JPS63242403A (ja) * 1987-03-30 1988-10-07 Hitachi Ltd 横置ハウジングを有する幅プレス装置
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
UA13483A (uk) 1997-04-25
RU1839643C (ru) 1993-12-30
KR920009464A (ko) 1992-06-25
DE4035002A1 (de) 1992-05-07
CN1027742C (zh) 1995-03-01
US5226307A (en) 1993-07-13
EP0484781A3 (en) 1993-01-13
CN1061171A (zh) 1992-05-20
ATE127047T1 (de) 1995-09-15
KR100190344B1 (ko) 1999-06-01
DE59106365D1 (de) 1995-10-05
TW197967B (fr) 1993-01-11
EP0484781A2 (fr) 1992-05-13

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