EP1407839B1 - Vorrichtung zum Ablängen von metallischen runden Stäben - Google Patents

Vorrichtung zum Ablängen von metallischen runden Stäben Download PDF

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Publication number
EP1407839B1
EP1407839B1 EP03022451A EP03022451A EP1407839B1 EP 1407839 B1 EP1407839 B1 EP 1407839B1 EP 03022451 A EP03022451 A EP 03022451A EP 03022451 A EP03022451 A EP 03022451A EP 1407839 B1 EP1407839 B1 EP 1407839B1
Authority
EP
European Patent Office
Prior art keywords
bars
cutting
plant
plant according
plane surface
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
EP03022451A
Other languages
English (en)
French (fr)
Other versions
EP1407839A1 (de
Inventor
Stefano Peruzzo
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.)
Oscam SpA
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Oscam SpA
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Publication date
Application filed by Oscam SpA filed Critical Oscam SpA
Publication of EP1407839A1 publication Critical patent/EP1407839A1/de
Application granted granted Critical
Publication of EP1407839B1 publication Critical patent/EP1407839B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending 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
    • B21D11/10Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/28Associations of cutting devices therewith
    • B21D43/285Devices for handling elongated articles, e.g. bars, tubes or profiles

Definitions

  • the present invention relates to plants for cutting metal bars, particularly bars that are to be used for reinforcing concrete, of the type indicated in the preamble of claim 1.
  • a plant of this type is disclosed in FR-A-2 704 784 .
  • the feeding and cutting head receives the leading ends of the rectilinear bars, causes them to advance longitudinally on the aforesaid plane surface (specifically in a channel) and cuts them to the desired length, separating the trailing end of the desired length of bar with respect to the remaining part of the standard bar.
  • a feeder-straightener unit in which there is fed the leading end of the bar that is wound in rolls, and which then renders rectilinear the portion of bar as it comes off the roll and cuts it when a straightened stretch of the desired length has been received.
  • the subject of the present invention is a plant for cutting (and preferably also bending) metal bars, comprising all the features of claim 1.
  • Independent claim 8 is directed to a method for cutting metal bars using the plant of the invention. Preferred embodiments are disclosed in the dependent claims.
  • the plant according to the invention can be exploited for operating both with straight bars and with bars coming from rolls, simply using each time and without any dead time the appropriate unit whenever it is necessary to change the type of material entering the plant.
  • feeding will be performed from one end or from the other of the bench that defines the at least one plane surface for receiving the bars.
  • the figure shows a plant with two bending machines 22 of a type in itself known.
  • the two bending machines 22, in the case of the embodiment illustrated, can be displaced on rails 22a parallel to the direction A according to the length of the bars to be bent, and each has a fixed central mandrel 23 and an eccentric pin for bending the bars B.
  • the bars to be bent are inserted aligned with respect to one another in a vertical plane, being rested on the plane surfaces 21 of the two bending machines 22 in the space existing between each mandrel 23 and a corresponding fixed reaction square, by any handling means (for example by means of the clamping device forming the subject of the co-pending European patent application No. 03014748.2 in the name of the present applicant) or in theory even manually, after being picked up from a cutting bench 50 onto which they are fed.
  • any handling means for example by means of the clamping device forming the subject of the co-pending European patent application No. 03014748.2 in the name of the present applicant
  • the bars B are received on the cutting bench 50, where they are cut to the desired length by means of a cutting head 52, which includes feeding means designed to operate on straight bars and which is situated at one end of the bench 50, or by means of a straightening, feeding and cutting unit 520 set at the opposite end of the bench 50.
  • the cut bars B fed by the head 50 are longitudinally referenced by activating a contrast element 51 that can be lifted (or any other equivalent element, such as a stopper or movable element or even using completely different systems, such as for example using an encoder for stopping advancement of the bar once the desired point is reached), the said contrast element being selected from a set of similar contrast elements, distributed along the bench 50, according to the desired length of bar that is to be cut.
  • a contrast element 51 that can be lifted
  • any other equivalent element such as a stopper or movable element or even using completely different systems, such as for example using an encoder for stopping advancement of the bar once the desired point is reached
  • the said contrast element being selected from a set of similar contrast elements, distributed along the bench 50, according to the desired length of bar that is to be cut.
  • the plant illustrated is thus able to operate both with straight bars, which are fed in from the left (with reference to the figure), and with straightened bars wound off rolls, which are fed in from the right.
  • a common longitudinal channel on the bench which receives the bars from both of the feed units located at the two ends of the bench, or else two or more distinct parallel channels set alongside one another, at the same level or at different levels, each supplied respectively by one of the two corresponding units.
  • the cutting plant according to the invention could serve bending units however arranged, or even, as an alternative to the bending units, racks, carriages or any other stocking structures.
  • at the two sides of the aforesaid at least one plane surface there could be two bending units, or else on one side a bending unit and on the other a stocking structure, or else only stocking structures.
  • straight bars and straightened bars coming from rolls may be fed not only alternately in sequence, but also simultaneously.
  • the cutting plant according to the invention could serve bending units however provided or even, as an alternative to the bending units, racks, carriages or any other stocking structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Scissors And Nippers (AREA)
  • Accessories And Tools For Shearing Machines (AREA)

Claims (10)

  1. Anlange zum Ablängen von Metallstäben (B), insbesondere Stäben für die Armierung von Beton, enthaltend wenigstens eine ebene Oberfläche (50), die die Stäbe (B) aufnimmt, und Zuführ- und Schneideinrichtungen (52,520), die die auf eine gewünschte Länge abzulängenden Stäbe (B) auf die wenigstens eine ebene Oberfläche (50) zuführen, wobei diese Einrichtungen eine erste Einheit (520) zum Geraderichten, Zuführen und Ablängen aufweist, die dazu eingerichtet ist, mit auf Rollen gewickelten Stäben zu arbeiten,
    dadurch gekennzeichnet, dass die Einrichtungen eine zweite Zuführ- und Schneideinheit (52) enthalten, die dazu eingerichtet ist, mit geraden Stäben zu arbeiten, dass die ersten und zweiten Einheiten (52,520) an den entgegengesetzten Enden der vorgenannten wenigstens einen ebenen Oberfläche (50) angeordnet sind, die die Stäbe (B) aufnimmt, und dass die ebene Oberfläche durch einen Kanal an einer Werkbank bestimmt ist, die von den zwei entgegengesetzten Enden mittels der ersten Einheit (520) oder der zweiten Einheit (52) beschickt werden kann, oder durch zwei oder mehr parallele Kanäle gebildet ist, die an einer Werkbank eingerichtet sind und jeweils durch die zwei Zuführeinheiten (52,520), die an den einander entgegengesetzten Enden der Werkbank angeordnet sind, beschickt werden.
  2. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass sie eine Anlage zum Ablängen und Biegen ist, enthaltend auch eine oder mehrere Biegeeinheiten (22) benachbart zu oder an einer Stelle entsprechend der wenigstens einen ebenen Oberfläche (50), wobei diese Biegeeinheiten dazu bestimmt sind, die zu biegenden, abgelängten Stäbe (B) aufzunehmen.
  3. Anlage nach Anspruch 2, dadurch gekennzeichnet, dass zum Ausführen mehrerer Biegungen an unterschiedlichen Stellen der Stäbe Einrichtungen zum Aufprägen einer Relativbewegung zwischen den Stäben und den Biegeeinheiten (22) in Längsrichtung der Stäbe vorgesehen sind.
  4. Anlage nach Anspruch 3, dadurch gekennzeichnet, dass die Einrichtungen zum Aufprägen einer Relativbewegung eine Bewegung der Biegeeinheiten (22) in Längsrichtung steuern.
  5. Anlage nach Anspruch 3, dadurch gekennzeichnet, dass die Einrichtungen zum Aufprägen einer Relativbewegung eine Bewegung der Stäbe in Längsrichtung steuern.
  6. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Kanäle auf gleichem Höhenniveau liegen.
  7. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Kanäle auf unterschiedlichen Höhenniveaus angeordnet sind.
  8. Verfahren zum Ablängen von Metallstäben (B), insbesondere Stäben (B) für die Armierung von Beton, das eine Anlage nach einem der Ansprüche 1 bis 7 verwendet.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass die geraden Stäbe und die Stäbe von Rollen nacheinander auf die wenigsten eine ebene Oberfläche (50) vom einen oder anderen Ende derselben zugeführt werden.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die geraden Stäbe und die von Rollen kommenden Stäbe gleichzeitig auf parallele ebene Aufnahmeflächen (50) von entgegengesetzten Enden derselben zugeführt werden.
EP03022451A 2002-10-10 2003-10-07 Vorrichtung zum Ablängen von metallischen runden Stäben Expired - Lifetime EP1407839B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000881A ITTO20020881A1 (it) 2002-10-10 2002-10-10 Impianto per il taglio di barre metalliche
ITTO20020881 2002-10-10

Publications (2)

Publication Number Publication Date
EP1407839A1 EP1407839A1 (de) 2004-04-14
EP1407839B1 true EP1407839B1 (de) 2008-05-14

Family

ID=32012191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03022451A Expired - Lifetime EP1407839B1 (de) 2002-10-10 2003-10-07 Vorrichtung zum Ablängen von metallischen runden Stäben

Country Status (6)

Country Link
EP (1) EP1407839B1 (de)
AT (1) ATE395151T1 (de)
DE (1) DE60320911D1 (de)
DK (1) DK1407839T3 (de)
ES (1) ES2305377T3 (de)
IT (1) ITTO20020881A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20120083A1 (it) * 2012-02-01 2013-08-02 Oscam Spa Impianto di piegatura di barre metalliche

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55126326A (en) * 1979-03-23 1980-09-30 Kajima Corp Method and apparatus for manufacturing steel bar for use of reinforced concrete
AT401360B (de) * 1993-05-07 1996-08-26 Progress Ag Biegeanlage für stäbe
DE19517041A1 (de) * 1995-03-24 1996-09-26 Muhr & Bender Übergabeeinrichtung und Bearbeitungsvorrichtung mit einer Übergabeeinrichtung

Also Published As

Publication number Publication date
EP1407839A1 (de) 2004-04-14
ITTO20020881A1 (it) 2004-04-11
ATE395151T1 (de) 2008-05-15
DK1407839T3 (da) 2008-07-28
DE60320911D1 (de) 2008-06-26
ES2305377T3 (es) 2008-11-01

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