EP1243352A2 - Tête d' étirage de tôle - Google Patents

Tête d' étirage de tôle Download PDF

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Publication number
EP1243352A2
EP1243352A2 EP02001735A EP02001735A EP1243352A2 EP 1243352 A2 EP1243352 A2 EP 1243352A2 EP 02001735 A EP02001735 A EP 02001735A EP 02001735 A EP02001735 A EP 02001735A EP 1243352 A2 EP1243352 A2 EP 1243352A2
Authority
EP
European Patent Office
Prior art keywords
clamping
clamping head
lamellae
slats
stretching
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.)
Granted
Application number
EP02001735A
Other languages
German (de)
English (en)
Other versions
EP1243352A3 (fr
EP1243352B1 (fr
Inventor
Günter Halleck
Wilfried Just
Andreas Scholzen
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 Group GmbH
Original Assignee
SMS Meer GmbH
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 Meer GmbH filed Critical SMS Meer GmbH
Publication of EP1243352A2 publication Critical patent/EP1243352A2/fr
Publication of EP1243352A3 publication Critical patent/EP1243352A3/fr
Application granted granted Critical
Publication of EP1243352B1 publication Critical patent/EP1243352B1/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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D25/00—Working sheet metal of limited length by stretching, e.g. for straightening
    • B21D25/04—Clamping arrangements
    • 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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling

Definitions

  • the invention relates to a clamping head of a plate stretcher for stretching and Straightening rolled or pressed flat billets, especially sheet metal and plates made from a variety across the working width of the chuck distributed lamellae standing side by side perpendicular to the plane of the stretched material exists, on its side facing the work area with a Clamping jaw extending over the entire width of the clamping head are.
  • the clamping jaw is made vertical to the plane of the stretched material arranged slats together, with C-shaped openings and therein necessary clamping devices for gripping the sheet or the plates are provided.
  • DE-PS 32 05 701 it is known that the resulting from the reaction forces, acting in the plane of the stretched material Bending moment that the entire clamping head like one supported on two supports The beam bends from the side of the The lamellae extend over the entire width of the clamping head connecting straps or trusses is intercepted.
  • the invention has for its object a plate extension head of the beginning to create the type mentioned, which can exert high stretching forces and nevertheless is easy to carry.
  • the clamping head according to the invention thus exists of several components, namely the one having a C-shaped opening Jaw and the upper and lower lamella parts enclosing it.
  • This sandwich construction thus achieved, however, enables easy transport or easy to handle and therefore easy to assemble components.
  • the internal jaw with its clamping devices from one high-strength material, such as forging material, and in contrast the Slats made of a force-absorbing material, preferably sheet metal become.
  • the divided slats and the jaw by means of transversely to the horizontal plane Traverses through a pre-tensioned system consisting of a tie rod and a pressure piece, are interconnected.
  • the trusses overlap all slats above and below the stretched material, with the tie rods and thrust pieces each on the narrow sides running transverse to the spreading force of the outer slats.
  • the individual sheet metal fins and the jaw are thus braced to a rigid and rigid box, creating a Gaping of the individual components is effectively prevented.
  • the modular principle enables the plate stretcher head to be divided into individual parts disassemble transportable components and assemble them on site.
  • due to the material adjustments an optimal absorption the stresses that occur during the stretching process even under high forces guaranteed individual components.
  • Another embodiment of the invention provides that between the divided Slats a steel box is arranged.
  • This steel case extends from Jaw to the ends of the slats and runs parallel to the horizontal division plane of the slats.
  • the steel box serves to absorb compressive stresses during the assembly of the individual Components are created by the pre-stressed tie rod / pressure piece system and act in a vertical direction on the stretching plane.
  • the divided Slats and the jaws one above and one below the horizontal plane Cross bars arranged in the working area of the clamping jaw are connected to one another are.
  • the crossbars lie on the top and bottom Partial slats and are made using a pre-tensioned system consisting of tie rods and pressure sleeves, clamped together.
  • the partial slats experience and the forged jaw is an additional support in the front area of the head, i.e. directly at the scene, where the greatest spreading forces act.
  • these front crossbars help on the one hand to reduce the size of the metal plates in the area of the clamping jaw and thus to save material weight and on the other hand the spreading forces during a stretching process and towards the entire system to distribute.
  • a plate stretcher consists of vertical next to each other, in the stretching plane 2 divided slats 3 and 4, which encompass a C-shaped jaw 5 in a form-fitting manner over its entire width (cf. Fig. 2).
  • the jaw 5 In the C-shaped facing the work area Opening the jaw 5 are necessary for clamping the stretched material 6 Clamping devices 7, 8 arranged.
  • a step-like - improving the rigidity of the lamellae 3 4 - Elevation 9 each arranged a cross member 10, 11 extending transversely to the stretching plane 2.
  • the two crossbeams 10, 11 are each above the narrow sides 12, 13 the slats 3, 4 facing tie rods 14 and between the cross members 10, 11 included pressure pieces 15 clamped together. Consequently the individual slats 3, 4 or the slat partial halves and that of this limited clamping jaw 5 non-positively connected to each other.
  • Such a clamping head 1 can be broken down into individual, easily transportable components and easily on a construction site to a compact, high force absorbing Assemble unit, whereby due to the differently chosen Materials - the jaw 5 can be made of wrought iron and the slats 3, 4 can consist of sheet metal - its strength and stiffness even when applied preserved by very high stretching forces.
  • FIGS. 3 and 4 A variant of the clamping head 1 is shown in FIGS. 3 and 4.
  • the front head area 17 above the slats 18 and stiffening crossbars 20, 21 are arranged below the slats 19.
  • These are clamped together via tie rods 22 and pressure sleeves 23 and thus create additional support for the slats 18, 19 and of the inner jaw 5.
  • this allows the size of the slats 18, 19 lower and on the other hand the spreading forces in the front Head area 17 recorded even better.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Forging (AREA)
  • Food-Manufacturing Devices (AREA)
  • Clamps And Clips (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Paper (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
EP02001735A 2001-03-21 2002-01-25 Tête d' étirage de tôle Expired - Lifetime EP1243352B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10113668A DE10113668B4 (de) 2001-03-21 2001-03-21 Plattenstreckerkopf
DE10113668 2001-03-21

Publications (3)

Publication Number Publication Date
EP1243352A2 true EP1243352A2 (fr) 2002-09-25
EP1243352A3 EP1243352A3 (fr) 2004-01-21
EP1243352B1 EP1243352B1 (fr) 2007-04-18

Family

ID=7678336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02001735A Expired - Lifetime EP1243352B1 (fr) 2001-03-21 2002-01-25 Tête d' étirage de tôle

Country Status (5)

Country Link
US (1) US6701766B2 (fr)
EP (1) EP1243352B1 (fr)
JP (1) JP3677484B2 (fr)
AT (1) ATE359880T1 (fr)
DE (2) DE10113668B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120833A1 (it) * 2012-05-14 2013-11-15 Danieli Off Mecc Testa mobile per stirosnervatrice

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007009139B3 (de) * 2007-02-24 2008-09-25 Sms Meer Gmbh Verfahren und Vorrichtung zum Betreiben eines Plattenstreckers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205701A1 (de) * 1981-03-26 1982-10-28 SMS Schloemann-Siemag AG, 4000 Düsseldorf Spannkopf eines hydraulischen blechstreckers in schweisskonstruktion
DE3633480C1 (en) * 1986-09-29 1987-12-03 Mannesmann Ag Plate-stretching head

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727556A (en) * 1954-11-04 1955-12-20 Hydropress Inc Straightening mechanism
US2908316A (en) * 1957-01-08 1959-10-13 Baldwin Lima Hamilton Corp Compact stretch-straightening mechanism with gripping heads having separate upper and lower sections composed of vertical laminations
GB2099733B (en) * 1981-03-26 1984-07-04 Schloemann Siemag Ag Gripping head of an hydraulic sheet stretcher

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205701A1 (de) * 1981-03-26 1982-10-28 SMS Schloemann-Siemag AG, 4000 Düsseldorf Spannkopf eines hydraulischen blechstreckers in schweisskonstruktion
DE3633480C1 (en) * 1986-09-29 1987-12-03 Mannesmann Ag Plate-stretching head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120833A1 (it) * 2012-05-14 2013-11-15 Danieli Off Mecc Testa mobile per stirosnervatrice
WO2013171650A1 (fr) * 2012-05-14 2013-11-21 Danieli & C. Officine Meccaniche S.P.A. Tête mobile pour machine à étirer
US10252313B2 (en) 2012-05-14 2019-04-09 Danieli & C. Officine Meccaniche S.P.A. Movable head for a stretching machine

Also Published As

Publication number Publication date
DE10113668B4 (de) 2006-02-02
ATE359880T1 (de) 2007-05-15
DE10113668A1 (de) 2002-10-02
US6701766B2 (en) 2004-03-09
US20020134129A1 (en) 2002-09-26
EP1243352A3 (fr) 2004-01-21
JP2002316214A (ja) 2002-10-29
DE50209953D1 (de) 2007-05-31
EP1243352B1 (fr) 2007-04-18
JP3677484B2 (ja) 2005-08-03

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