EP1527830B1 - Walzgerüst und Verfahren zum Herstellen von schraubenförmigen Metallbändern - Google Patents

Walzgerüst und Verfahren zum Herstellen von schraubenförmigen Metallbändern Download PDF

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Publication number
EP1527830B1
EP1527830B1 EP04077892A EP04077892A EP1527830B1 EP 1527830 B1 EP1527830 B1 EP 1527830B1 EP 04077892 A EP04077892 A EP 04077892A EP 04077892 A EP04077892 A EP 04077892A EP 1527830 B1 EP1527830 B1 EP 1527830B1
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EP
European Patent Office
Prior art keywords
conveyor track
trolley
rolling mill
rolling
rollers
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.)
Not-in-force
Application number
EP04077892A
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English (en)
French (fr)
Other versions
EP1527830A1 (de
Inventor
Alfonsius J. M. Busschers
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.)
Busschers Staalwerken BV
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Busschers Staalwerken BV
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Publication date
Application filed by Busschers Staalwerken BV filed Critical Busschers Staalwerken BV
Publication of EP1527830A1 publication Critical patent/EP1527830A1/de
Application granted granted Critical
Publication of EP1527830B1 publication Critical patent/EP1527830B1/de
Not-in-force legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form

Definitions

  • the invention relates to a rolling mill for milling helically shaped metal strips, comprising a frame, provided with at least three rollers of which at least one roller is mounted adjustable, drive means for driving at least one of the rollers and with supply means for the supply of metal strip to be rolled towards the rollers.
  • a rolling mill is known from FR-A-1219379 .
  • the rolling mill known from FR-A-1219379 is used for the production of metal cylinders.
  • the metal strip is rolled so that successive windings fit together, after which the seam is closed by welding.
  • the sidewards directed force, generated by the rolls, will now result in a sidewards movement of the first trolley together with the metal strip, which results in a qualitatively better end product, because the metal strip will not wriggle or slide between the rolls and its surface will remain practically undamaged. Moreover, the dimensions of the end product turn out to correspond better to the desired dimensions. Finally, during the rolling process, the metal strip may easily be moved with the aid of the first trolley after the adjustable roller has been disengaged, whereupon the rolling process can be resumed. In this way, relatively long helically shaped metal strips can be manufactured.
  • a preferred embodiment of the invention with which the direction of the metal strip may be determined more accurately, without significantly increasing the friction in the conveyor track, is characterised in that the second conveyor track is at least near the frame provided with guiding means, for guiding the metal strip.
  • a conveyor system comprising a first conveyor track, provided with a first slidable trolley, a second conveyor track, hingedly mounted to the first trolley and provided with a second slidable trolley with a clamping arrangement mounted onto it, suitable to be mounted as part of a rolling mill in accordance with claims 1 or 2.
  • a preferred embodiment of the method of the invention is characterised in that the rolling of a strip is periodically interrupted, after which a mutual distance between at least two rollers of the system of rollers is increased, after which the material is moved in a direction parallel to the rollers, after which the distance between the at least two rolls is decreased to the starting position, after which the rolling is resumed.
  • the rolling of a strip is periodically interrupted, after which a mutual distance between at least two rollers of the system of rollers is increased, after which the material is moved in a direction parallel to the rollers, after which the distance between the at least two rolls is decreased to the starting position, after which the rolling is resumed.
  • Fig. 1 schematically represents a possible embodiment of a spiral staircase 1, provided with a stringboard 2 and a newel 3, between which steps 4 can be mounted. It may be noted that newel 3 may be lacking.
  • the production of a stringboard is difficult, time consuming and usually there is quite a lot of scrap-iron and rejects.
  • As a stringboard must be placed in or onto a finished building the demands with regard to the accuracy of the dimensions are high. For that reason, parts of the stringboard are usually cut out of a solid steel plate which has previously been rolled, after which these parts are welded together.
  • Fig. 2A schematically represents a solid steel plate 4, which is rolled in a rolling mill according to the state of the art in a direction indicated by an arrow, with a diameter that corresponds with the diameter of stringboard 2, after which for example parts 5a,5b,5c may be cut out of steel plate 4 and welded together in a longitudinal direction. Obviously, much material is spilled, while welding together the relatively short parts may have a negative effect on the accuracy.
  • Fig. 2B schematically represents a composite steel plate 6, consisting of a strip-shaped part 7 which will become part of stringboard 2 and which is welded inside a frame 8, also put together of strips made of steel plate.
  • Composite steel plate 6 is rolled in a rolling mill according to the state of the art in a direction indicated by an arrow, with a diameter that corresponds with the diameter of stringboard 2, after which strip-shaped part 7 is cut out of composite steel plate 6 and used.
  • the presence of strip-shaped part 7 will generate a force perpendicular to the rolling direction.
  • the aim of frame 8 is to prevent this force from causing composite steel plate 6 to make unwanted movements, which could negatively influence the accuracy, in fact by imitating a solid steel plate.
  • a strip-shaped part 7 is guided between the rolls of the rolling mill, of which the rolls have been adjusted such that strip-shaped part 7 will be rolled to a diameter which corresponds to the diameter of stringboard 2.
  • the direction of strip-shaped part 7 is stabilised with mechanical means.
  • the force acting onto strip-shaped part 7 in a direction rectangular to the rolling direction results in a sidewards movement of strip-shaped part 7, which movement is according to the invention permitted and even not opposed at all.
  • Fig. 3 schematically represents a possible embodiment of a rolling mill according to the invention, consisting of a frame 9 in which two driven, adjustable rolls 10a, 10b are placed and one non-adjustable possibly driven roll 11.
  • a first conveyor track 12 is mounted, in this embodiment consisting of a steel profile, onto which a first trolley 13 may ride or slide freely.
  • a second conveyor track 15 is hingedly mounted round a hinge point 16. The angle between first conveyor track 12 and second conveyor track 15 may be selected with the aid of an adjusting rod 17, mounted between mounting plate 14 and second conveyor track 15.
  • Via second conveyor track 15 a strip, not shown here, is supplied to the rolling mill, in the process of which the strip is clamped in a clamp 18 which is mounted onto a second trolley 19 which may ride or slide freely over second conveyor track 15. Close to the rolling mill, the strip is sidewards supported with the aid of two rolls 20a,20b.
  • the rolls 10a, 10b, 11 can pull the strip inwards, with the angle being completely determined, while the strip is free to move in a sidewards direction.
  • a free end of second conveyor track 15 is supported, for example with the aid of a leg 22 mounted onto a swivelling wheel 21.

Claims (5)

  1. Walzgerüst zum Walzen von schraubenförmigen Metallbändern, wie zum Beispiel Treppengeländer (2) für Wendeltreppen (1), welches Gerüst einen Rahmen (9), versehen mit zumindest drei Walzen (10a,10b,11), von denen zumindest eine Walze (10a,10b) einstellbar montiert ist, Antriebsmittel für den Antrieb von zumindest einer der Walzen (10a,10b) und von Zufuhrmitteln für die Zufuhr des zu walzenden Metallbandes zu den Walzen (10a,10b,11), umfasst, wobei die Zufuhrmittel eine an dem Rahmen (9) des Walzgerüstes befestigte, zumindest im Wesentlichen parallel zu einer nicht-einstellbaren Rolle (11) verlaufende, erste Transportbahn (12) umfassen, welche erste Transportbahn (12) mit einem verschiebbar darauf befestigten Wagen (13) versehen ist, und weiter eine zweite Transportbahn (15), mit einem verschiebbar darauf befestigten zweiten Wagen (19), der mit einer Klemmvorrichtung (18) für das Einklemmen des Metallbandes versehen ist, wobei die zweite Transportbahn (15) mittels eines Scharniergelenks an dem ersten Wagen (13) befestigt ist.
  2. Walzgerüst gemäß Anspruch 1, dadurch gekennzeichnet, dass die zweite Transportbahn (15) zumindest nahe dem Rahmen (9) mit Führungsmitteln (20a,20b) für das Führen des Metallbandes versehen ist.
  3. Transportsystem, welches System eine erste Transportbahn (12) umfasst, versehen mit einem ersten verschiebbaren Wagen (13), und weiter eine mittels eines Scharniergelenks an dem ersten Wagen (13) befestigte, zweite Transportbahn (15), versehen mit einem zweiten verschiebbaren Wagen (19) und mit einer darauf montierten Klemmvorrichtung (18), welche Klemmvorrichtung (18) geeignet ist, um als Teil eines Walzgerüsts gemäß Anspruch 1 oder 2 montiert zu werden.
  4. Verfahren zum Walzen von schraubenförmigen Metallbändern, wie zum Beispiel Treppengeländer (2) von Wendeltreppen (1), unter Verwendung eines Walzgerüsts gemäß Anspruch 1.
  5. Verfahren gemäß Anspruch 4, dadurch gekennzeichnet, dass das Walzen eines Metallbandes periodisch unterbrochen wird, wonach die gegenseitige Entfernung zwischen zumindest zwei Walzen des Systems aus Walzen (10a,10b,11) vergrößert wird, wonach das Material parallel zu den Walzen verschoben wird, wonach die Entfernung zwischen den zumindest zwei Walzen wieder bis zum ursprünglichen Maß herabgesetzt und das Walzen fortgesetzt wird.
EP04077892A 2003-10-28 2004-10-22 Walzgerüst und Verfahren zum Herstellen von schraubenförmigen Metallbändern Not-in-force EP1527830B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1024637A NL1024637C2 (nl) 2003-10-28 2003-10-28 Walsinrichting en werkwijze voor het walsen van helixvormige metalen lijsten.
NL1024637 2003-10-28

Publications (2)

Publication Number Publication Date
EP1527830A1 EP1527830A1 (de) 2005-05-04
EP1527830B1 true EP1527830B1 (de) 2008-04-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04077892A Not-in-force EP1527830B1 (de) 2003-10-28 2004-10-22 Walzgerüst und Verfahren zum Herstellen von schraubenförmigen Metallbändern

Country Status (4)

Country Link
EP (1) EP1527830B1 (de)
AT (1) ATE392961T1 (de)
DE (1) DE602004013251T2 (de)
NL (1) NL1024637C2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499382B (zh) * 2014-10-16 2017-11-28 五冶集团上海有限公司 一种卷板角度控制模具及其制作方法
CN106001207A (zh) * 2016-08-17 2016-10-12 江苏机机械科技有限公司 一种大型三辊卷板机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT186954B (de) * 1953-08-13 1956-10-10 Steirische Gussstahlwerke Vorrichtung zum Wickeln von Schraubenfedern
FR1219379A (fr) * 1958-12-26 1960-05-17 Metaux Inoxydables Ouvres Perfectionnements apportés à la fabrication des cylindres métalliques
DE3524940C2 (de) * 1985-07-12 1995-06-01 Blohm Voss Ag Vorrichtung zum Herstellen kurzer, dickwandiger Rohrschüsse

Also Published As

Publication number Publication date
NL1024637C2 (nl) 2005-05-02
EP1527830A1 (de) 2005-05-04
DE602004013251D1 (de) 2008-06-05
ATE392961T1 (de) 2008-05-15
DE602004013251T2 (de) 2009-06-25

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