EP0665776B1 - Manufacturing line for shaping steel strips - Google Patents

Manufacturing line for shaping steel strips Download PDF

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Publication number
EP0665776B1
EP0665776B1 EP93924253A EP93924253A EP0665776B1 EP 0665776 B1 EP0665776 B1 EP 0665776B1 EP 93924253 A EP93924253 A EP 93924253A EP 93924253 A EP93924253 A EP 93924253A EP 0665776 B1 EP0665776 B1 EP 0665776B1
Authority
EP
European Patent Office
Prior art keywords
strip
sheets
production line
felt cloth
thin metal
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
EP93924253A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0665776A1 (en
Inventor
Lars Ingvar Ingvarsson
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.)
Ortic AB
Original Assignee
Ortic AB
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 Ortic AB filed Critical Ortic AB
Publication of EP0665776A1 publication Critical patent/EP0665776A1/en
Application granted granted Critical
Publication of EP0665776B1 publication Critical patent/EP0665776B1/en
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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
    • B21D13/045—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling the corrugations being parallel to the feeding movement

Definitions

  • the invention relates to a production line for the profiling of thin, coated metal strip by which it is possible to roll-form the strip, to cut it in desired lengths, to slit and cut it to sheets for making cover plates for roof ridges and the like, coating the strip with condensed water absorbing felt cloth, protective foil etc.
  • the strip is primarily adapted to be used as roof and wall cladding.
  • Thin metal sheet has since long been used as cladding for roofs and walls.
  • the sinusoidal galvanized sheet is classical.
  • the development has been fast in the later years.
  • the demands for increased load bearing capacity and better appearance have been increased.
  • the longitudinal profiling is now more varied both with regard to form and to profile depth, and one can choose among numerous colours for the strips that are to be used as starting material for the roll-forming.
  • the thickness of the strips that are used is normally between 0.4 and 1 mm.
  • the product is to be used in a corrosive atmosphere, its surface is first coated with a rust preventing layer of zinc or a mixture of zinc and aluminium and minor additives. In order for the surface to have the desired appearance, it is coated with a coloured polyester or alternatively PVC (plastisol).
  • One side of the strip can have a protective coating but it is more common nowadays that both sides have coatings such that they can both be a front surface and that the two sides have different colours so that the stock of coils can be reduced when the
  • the stock in the form of coils from which one can produce sheets of different colours, surface design, and length. Since the user only in a late stage of erecting a building can decide for example the length of the sheets to be used, it is a great advantage to be able to quickly exchange coils and to adapt the roll-forming equipment to various profiles and lengths. It is also a great advantage to be able to cut from the same coil, plane sheets of various length and width for use as non-profiled sheets and for use as roof edges, barge boards and the like. Since the producer of the coils cannot guarantee against disturbing colour deviations between coils produced at different occasions, it is often necessary to take all the material out of one and the same coil or at least out of the same stock.
  • the front side of the sheets can be coated with a protective foil in order to protect the sheets from transport damages.
  • Modern roll-forming machines form the strip between undriven roller pairs.
  • the strip is forced through the roll-forming machine by means of stations with driven rolls that are used solely to move the strip.
  • a production line for the profiling of thin metal strip is disclosed in US-3 421 353-A.
  • the strip is cut in desired lengts before the profiling step (which can be quickly rearranged for various profiles) and sized non-profiled sheets can be cut from the same coil by slitting in a slitter and tranverse cutting in the usual cutter.
  • the strip can be coated with a condensed water absorbing felt cloth and also be coated with a protective foil. All the steps can be contolled by a computer that is fed with input data in accordance with the customer requirements on the design of the product.
  • the coils 8 that are to be used in the production line 1 when effecting an order are mounted on the arbors of a turret 3.
  • a conveying device that is usually running on rails.
  • the upper part of the conveyer 4 on which the coil rests is turnable on a vertical shaft in order to be able to mount the coil 8 on the decoiler so that alternatively one or the other side of the coated strip will be the upper side during the decoiling. This is because the coil may have different coatings on its two surfaces.
  • the strip 9 from the decoiler 2 passes an entry guiding table 5, first between a pair of driven horizontal rollers and then over horizontal conveying rollers.
  • the strip 9 is guided also sideways by means of vertical rollers.
  • the design of the entry table can be varied.
  • the strip 9 is then levelled in a conventional roller leveller 13 with rollers located in a zig-zag arrangement.
  • the roller leveller 13 comprises also two feeding devices 12 that are located one at the inlet and one at the outlet of the roller leveller.
  • the strip 9 is then cut in a main cutter 17 which has straight edges, either into sized plane sheets that are moved to a receiving store 18 located downward the main cutter 17 or, alternatively, the strip is moved over a driven roller table and between side guides 19 through the roll-forming machine 20 in which they are profiled in a number of forming stations to the desired profile and then received in one of a number of final receiving stores for further delivery transport.
  • the main cutter 17 is thus fixed before the roll-forming machine 20 which is designed so as to permit a quick change between a number of different profiles, often no more than six.
  • the roll-forming machine can form flat entry sheets to profiled sheets that have no intolerable end effects and intolerable width variations. To accomplish that, the roll-forming machine must be very rugged, its forming rollers must be accurately calibrated and the number of forming stations be increased.
  • the rollers of the roller leveller 13 can have a somewhat rearward movement relative to the strip 9.
  • the production line 1 has a slitter 14 before the main cutter 17 that cuts the strip 9 transverely.
  • the slitter comprises two driven shafts vertically one above the other and one above the strip and the other below the strip.
  • the shafts are transverse to the movement of the strip.
  • the shafts have circular cutting edges; lower cutting edges and upper cutting edges which can cooperate in pairs and which are laterally adjustable for various slitting widths.
  • the shafts are moved together so much that the respective pairs of cutting edges 15,16 overlap and thus perform the slitting.
  • the cutting edges 15,16 are separated so that the strip 9 can pass them freely.
  • the protective foil 24 For applying a protective foil 24 on the upper surface of the strip 9, it is only necessary to force away the air between the foil 24 and the strip 9. Then the foil will adhere sufficiently.
  • a coil 6 of protective foil By mounting a coil 6 of protective foil on a horizontal shaft tranverse to the direction of strip movement and above the strip 9, and forcing the foil 24 and the strip 9 together between even rollers of the feeding device 12 located before the roller leveller 13, the foil 24 will adhere to the upper surface of the strip 9.
  • the protective foil 24 is first conveyed over a deviating roller designed as a conventional smoothing roller 7, that is, half the roller is provided with a clockwise spiral bead and the other half with a counterclockwise spiral bead. The beads will strive to move the foil 24 outwardly towards the edges of the strip so that the foil will be stretched transversely.
  • the condensed water absorbing felt cloth 23 will of course be applied to the underside of the strip 9 and this is carried out principally in the same way as the application of the protective foil 24.
  • An adhesive felt cloth is used which has its adhesive surface covered with a protective paper 29.
  • the protective paper 29 is removed by being successiveively rolled onto a receiving roller 25 which is friction driven and keeps the protective paper 29 streched so much that it separates from the felt cloth 23.
  • the profiled sheets overlap when mounted on the building. There must be no felt cloth 23 between the metal surfaces in the overlap since the water cannot easily evaporate from the overlap.
  • the felt cloth storage 30 can be adjusted axially with great accuracy.
  • the width of the felt cloth must also be accurate so that the other edge of the felt cloth coincides with the edge of the profiled metal sheet 10. The best way is to cut away continuously the redundant felt cloth shred 26 for example by forcing a cutter 27 against the felt cloth 23 and to take care of the felt cloth shred on a waste coiler 28.
  • the control of the production line can be carried out from consols 22.
  • the best way is to use a computer into which all input data for a material specification is fed and to have the computer to control all factors such as choice of profile, cutting length for the sheets 10, when to coat with protective foil 24, when and where the strip shall be coated with the condensed water felt cloth 23, the choice of suitable coil 8,how the coil 8 shall be turned on the decoiler 2, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Advancing Webs (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP93924253A 1992-10-25 1993-10-25 Manufacturing line for shaping steel strips Expired - Lifetime EP0665776B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9203130 1992-10-25
SE9203130A SE505672C2 (sv) 1992-10-25 1992-10-25 Produktionslinje för profilering av tunn plåt
PCT/SE1993/000866 WO1994009925A1 (en) 1992-10-25 1993-10-25 Manufacturing line for shaping steel strips

Publications (2)

Publication Number Publication Date
EP0665776A1 EP0665776A1 (en) 1995-08-09
EP0665776B1 true EP0665776B1 (en) 2002-02-06

Family

ID=20387564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93924253A Expired - Lifetime EP0665776B1 (en) 1992-10-25 1993-10-25 Manufacturing line for shaping steel strips

Country Status (6)

Country Link
EP (1) EP0665776B1 (no)
DE (1) DE69331548T2 (no)
DK (1) DK0665776T3 (no)
NO (1) NO301870B1 (no)
SE (1) SE505672C2 (no)
WO (1) WO1994009925A1 (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO305183B1 (no) * 1997-06-26 1999-04-12 Norsk Hydro As FremgangsmÕte for fremstilling av et halvfabrikat for lystekniske formÕl, et halvfabrikat for lystekniske formÕl, samt utstyr for fremstilling av samme
AUPS111202A0 (en) * 2002-03-14 2002-04-18 Bhp Steel Limited Profiled steel decking sheets
CN103817524A (zh) * 2014-03-03 2014-05-28 杭州诺源铜艺装饰有限公司 一种全自动开平机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1552714A1 (de) * 1966-05-27 1970-02-26 Elektro App Werke Berlin Trept Rollenschere mit einem Paar kreisfoermiger Messer zum Schneiden von Baendern verschiedener Breite aus Bandrollen groesserer Breite
US3421353A (en) * 1967-10-12 1969-01-14 Robertson Co H H Method and apparatus for making corrugated building sheets
AT345063B (de) * 1976-06-25 1978-08-25 Voest Ag Vorrichtung zum aufrechterhalten einer waehrend eines richtvorganges auf ein metallband ausgeuebten, bestimmten zugspannung
US4214467A (en) * 1979-03-05 1980-07-29 Kaiser Aluminum & Chemical Corporation Metal coil handling system
US4994130A (en) * 1988-08-30 1991-02-19 Mitsubishi Kasei Corporation Method for producing a composite laminate
GB9011225D0 (en) * 1990-05-18 1990-07-04 Rollsec Ltd Rolling mill

Also Published As

Publication number Publication date
NO951304L (no) 1995-04-04
WO1994009925A1 (en) 1994-05-11
DE69331548T2 (de) 2002-09-12
NO301870B1 (no) 1997-12-22
SE9203130D0 (sv) 1992-10-25
NO951304D0 (no) 1995-04-04
DK0665776T3 (da) 2002-05-21
DE69331548D1 (de) 2002-03-21
SE505672C2 (sv) 1997-09-29
EP0665776A1 (en) 1995-08-09
SE9203130L (sv) 1994-04-26

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