US3707257A - Plant for the selective production of either two one-seam tubes or one two seam-tube - Google Patents

Plant for the selective production of either two one-seam tubes or one two seam-tube Download PDF

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Publication number
US3707257A
US3707257A US70439A US3707257DA US3707257A US 3707257 A US3707257 A US 3707257A US 70439 A US70439 A US 70439A US 3707257D A US3707257D A US 3707257DA US 3707257 A US3707257 A US 3707257A
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United States
Prior art keywords
seam
tubes
roll forming
tube
plant
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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
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US70439A
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English (en)
Inventor
Alfred Wogerbauer
Anton Hulek
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Voestalpine AG
Voest AG
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Voestalpine AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes

Definitions

  • the disclosure relates to a plant for the. selective production of either two one-seam tubes or one twoseam tube comprising two roll forming machines arranged one behind the other'for the formation of two slotted tubes or component sections from strips and a welding apparatus with two welding stations, wherein the improvement resides in that at least one roll forming machine is vertically displaceable relative to the other roll forming machine and at least the forming rolls of one roll forming machine are horizontally displaceable relative to the forming rolls of the other roll forming machine and the positions of the two welding stations are likewise changeable relative to each other.
  • This plant is highly economical and versatile as regards tube shapes and dimensions.
  • the ir ATTORNEYS PLANT FOR THE SELECTIVE PRODUCTION OF EITHER TWO ONE-SEAM TUBES OR ONE TWO SEAM-TUBE The invention relates to a plant for the selective production of either two one-seam tubes or one'twoseam tube comprising two roll forming machines arranged one behind the other for the formation of two slotted tubes or component sections and a welding apparatus with two welding stations; and to a method for operating such plant.
  • Tubes produced in this manner may be calibrated in further rolling stands and/or be re-shaped to become simple shaped tubes, e.g., tubes of a square cross section.
  • shaped tubes preferably tubes having acomplicated cross section, such as fold flange tubes or shaped tubes with bent-in edges are produced from two strips.
  • the two strips are shaped e.g,, on .rolling stands arranged one behind the other along the respective conveying line to become two component sections with equidistant legs, the leg ends are guided towards each other so that pairs are opposite each other and butt-welded under formation of two longitudinal seams.
  • the invention is aimed at creating a plant for economically producing both one-seam tubes and twoseam tubes by changing the production program by simple means for the one or the other purpose.
  • the invention resides in that at least one roll forming machine is vertically displaceable relative to the other roll forming machine and at least the forming rolls of one roll forming machine are horizontally displaceable relative to the forming rolls of the other roll forming machine and the positions of the two welding stations are likewise changeable relative to each other.
  • the length of the shafts of the two roll forming machines is sufficient for receiving side by side a finished slotted tube or component section and a flat strip to be shaped.
  • the method for producing two one-seam tubes by means of a plant according to the invention resides in that two strips are continuously fed to the two roll forming machines and shaped in steps to become slotted tubes with preferably upwardly oriented slits, the two roll forming machines being adjusted to the same height level, while the forming rolls of the roll forming machines are adjusted horizontally corresponding to the lateral distance of the feed lines of the two slotted tubes-and the welding stations are adjusted corresponding to the distance of the slits of the two one-seam tubes.
  • the method for producing one two-seam tube by means of the plant according to the invention in which two strips are one above the other and one after the other shaped to component sections in the two roll forming machines arranged with vertical distanceto each other, resides in that the forming rolls of the two roll forming machines are adjusted in horizontal direction on the shafts to occupy a central position corresponding to the feedlines of they component sections.
  • the run-through or feed lines of the two roll formingmachines remain on the same level as the level of the whole runout section, particularly the two calibrating devices, Both the two slotted tubes and the welding tubes run parallel to each other through the plant.
  • the two run-through lines lie in a common horizontal plane.
  • one of the two roll forming machines is adjusted to be higher, while the second may be lowered, and the forming rolls of at least one roll forming machine are horizontally shifted on their shafts into such a position that the two run-through lines arelikewise parallel to each other but on a common vertical plane.
  • the component sections leave the roll forming machines one above the other in the direction of the welding station where they are guided together so that their leg ends are opposite to each other whereupon these leg ends are butt-welded.
  • welding station is understood to cover those parts of the welding machine with which the welding seam is applied. It is also possible to provide for two separate, exchangeable welding means; then, the position of the welding stations in one means will correspond to the one-seam program and the position of the welding stations in the other means will correspond to the two-seam program. Welding may be carried out according to any continuously operable butt-welding process. High frequency welding is preferred.
  • two tubes of simple cross section e.g., round tubes
  • the welding current may be transmitted inductively and conductively.
  • conductive high frequency welding is preferred.
  • Means are provided for turning on the welding current for each of the two welding seams both separately and jointly.
  • two separate welding current sources e.g., high frequency generators, are used for this purpose.
  • the plant according to the invention may also serve for producing a single one-seam tube in a manner known per se.
  • the run-through line may lie in the middle of both roll forming machines so that the production of larger tubes becomes possible.
  • FIG. 1 is an elevation and FIG. 2 is a plan view of the plant according to the invention, illustrating the method when two one-seam tubes are produced simultaneously.
  • FIG. 3 and FIG. 4 similarly show elevational viewand plan view of the plant according'to the invention when the method for producing a two-seam tube is carried out.
  • the strips used as starting material and the finished product of the method according to FIGS. 1 and 2 are shown in FIG. 5, and the strips used as starting material and the finished product according to FIGS. 3 and 4 are shown in FIG. 6.
  • FIGS. 1 to 4 the material is fed from the left hand side to the right hand side.
  • the plant is con tinuously supplied with two strips both when two oneseam tubes are simultaneously produced and when one two-seam tube is produced.
  • known devices may be used, e.g., a strip preparation plant with strip storing means. These plants do not form .part of the invention and are therefore not illustrated in the drawing.
  • strips 1 and 2 are conveyed to pairs of feed rollers 3 and 4 which are driven separately, the strips being paid on from a strip depositing means, not shownin the drawing.
  • the pairs of feed rollers 3 and 4 feed the strips 1 and 2 underformation of loops 5 and 6 to the roll forming machines 7 and 8.
  • the loops 5 and 6 make it possible to arrange the strips 1 and 2 side by side.
  • the two roll forming machines 7, 8 are arranged on the same height level, the roll forming machine 8 being connected with the sole plate 10 via the removable floating plate 9.
  • the strip 1 is formed to become a slotted tube 1 1 in the roll forming machine 7, the forming rolls 12 being fixed on the left hand side, when regarded'in the run-through direction, on the shafts 13 being of adequate length.
  • the strip 2 is guided through the bed of the roll forming machine 7 without being shaped and on to the roll forming machine 8 where it is formed to become a slotted tube 16 by means of forming rolls 15 which are arranged on the right hand side of the shafts 14, as viewed in runthrough direction.
  • the two slotted tubes 11 and 16 are on the same height level, i.e., their run-through lines lie in a common horizontal plane and are thus guided to the welding means 17. There the slit edges are buttwelded under formation of a longitudinal seam.
  • the strips 18 and 19 are guided to the pairs of feed rollers 3 and 4, the strips being paid on from a strip depositing means not shown in the drawing.
  • the pairs of feed rollers 3 and 4 feed the strips 18 and 19 to the roll forming machines 7 and 8 under formation of loops 20 and 21.
  • the loops 20 and 21 make it possible to arrange the strips 18 and 19 one above the other.
  • the roll forming machine 7 is connected with the sole plate 22 v via the removable floating plate 9 and is thus on a higher level than the roll forming machine 8.
  • the vertical displacement of the roll forming machines 7 and 8 sole plates 22, 10 are fixed in position relative to the floating plate by releasable means known per se such as releasable wedges or pins.
  • the strip 18 is shaped to become the component section 23, while the strip 19 is conveyed through the bed of the roll forming machine 7 without being shaped to the roll forming machine 8 where it is formed to become component section 24..
  • the shaping rolls 12', 15' are fixed on the shafts 13, 14 of the roll forming machines 7, 8 in a manner that the run-through lines of the strips 18, 19, and of the component sections 23, 24, respectively, are in a common vertical plane.
  • the component sections 23, 24, running in parallel one above the other and having legs arranged at equal distances, are conveyed towards the welding means 25.
  • the welding plant 25 comprises a means 26 for bringing together the component sections 23, 24.
  • the component sections are juxtaposed with their leg ends and butt-welded under formation of two longitudinal seams.
  • the tube 36 which, regarded in run-through direction, is conveyed on the left hand side, is finished in the calibrating machine 40 and the tube 37 running on the right hand side is finished in the calibrating machine 41.
  • the two tube strings are thus independent of each other.
  • a two-seam tube 38 When a two-seam tube 38 is made it may be finished either in both or only in one calibrating machine. In the calibrating machines 40 and 41 it is possible to produce not only the desired tube size, but also fold flanges with the most narrow tolerances.
  • the necessary devices arranged in succession to the calibrating machines for shearing the tubes to length e.g., flying punches, co-running saws) run-out roller tables, thrust-out machines etc. are not part of the invention and therefore are not illustrated.
  • the plant according to the invention affords a highly varying production program both with regard to the shape of the tubes and with regard to their dimensions.
  • the simultaneous production of two one-seam tubes is limited to simple cross section shapes. It is possible to manufacture e.g. round tubes, flat oval, square, rectangular or hexagonal tubes, When two one-seam tubes 36 and 37 are produced. simultaneously, the maximum circumference of the individual tubes is limited to about half of the useful length of the shafts carrying the forming rolls as shown schematically in FIG. 5, this means that the width of the individual strips 1 and 2 corresponds to about half of the length of these shafts which is useful for fixing the forming rolls.
  • the double production volume is achieved per time unit as compared to conventional plants.
  • v6 shows schematically a two-seam rectangular tube 38 whose circumference corresponds to the sum of the maximum widths of the strips 18 and 19 that may be processed.
  • a plant for selectively producing two one-seam tubes and one two-seam tube from strips vcomprising two roll forming machines arranged one after the other in the direction of travel of the strips, at least one roll forming machine vertically displaceable relative to the other roll forming machine, a plurality of forming rolls positioned in each of the roll forming machines, at least the plurality of forming rolls of one roll forming machine horizontally displaceable relative to the forming rolls of the other roll forming machine, and a welding apparatus with two welding stations, the two welding' stations displaceable relative to each other, whereby the roll forming machines, forming rolls and welding apparatus are adaptable to produce two oneseam tubes or one two-seam tube.
  • each roll forming machine is mounted on shafts, each of the shafts having a length sufficient for receiving side-by-side a flat strip to be shaped and a slotted tube or a component section.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
US70439A 1969-09-08 1970-09-08 Plant for the selective production of either two one-seam tubes or one two seam-tube Expired - Lifetime US3707257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT849369A AT290258B (de) 1969-09-08 1969-09-08 Einrichtung und Verfahren zur wahlweisen Herstellung von entweder zwei Einnahtrohren oder einem Zweinahtrohr

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US3707257A true US3707257A (en) 1972-12-26

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US70439A Expired - Lifetime US3707257A (en) 1969-09-08 1970-09-08 Plant for the selective production of either two one-seam tubes or one two seam-tube

Country Status (7)

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US (1) US3707257A (de)
JP (1) JPS4817975B1 (de)
AT (1) AT290258B (de)
DE (1) DE2043169C3 (de)
FR (1) FR2061609B1 (de)
GB (1) GB1321444A (de)
SU (1) SU402183A3 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798745A (en) * 1972-12-13 1974-03-26 Koppers Co Inc Precipitator plate production system with low level bundling and transport
US3800404A (en) * 1972-12-13 1974-04-02 Koppers Co Inc Plate production system with low level bundling, stacking, and transport
US3886651A (en) * 1973-10-11 1975-06-03 Alexandr Borisovich Vernik Method of producing tubes from sheet metal blanks on mill
US4709845A (en) * 1984-03-15 1987-12-01 Kusakabe Electric & Machinery Co. Ltd. Apparatus for continuously producing steel pipes including using rotable beds of tools for different size pipe
US5140123A (en) * 1990-05-25 1992-08-18 Kusakabe Electric & Machinery Co., Ltd. Continuous manufacturing method for a metal welded tube and a manufacturing apparatus therefor
US5607098A (en) * 1993-10-20 1997-03-04 Kusakabe Electric & Machinery Co., Ltd. Tubular shape finishing apparatus for an electro-resistance-welded pipe
US5647241A (en) * 1995-09-22 1997-07-15 Abbey Etna Machine Company Rotary upper roll selector
US5868299A (en) * 1997-05-05 1999-02-09 Abbey Etna Machine Company Method and apparatus for maintaining seam alignment in seam welded tubes
US8987627B2 (en) 2010-04-30 2015-03-24 Dfi Corporation Dual seam electric resistance welded tubes
US9476203B2 (en) * 2015-03-06 2016-10-25 John Powers, III Column/beam maufacturing apparatus and methods
CN110328533A (zh) * 2019-06-24 2019-10-15 杨元恒 一种双线金属方矩形管成型焊接机组
CN112606551A (zh) * 2021-01-05 2021-04-06 深圳市久和丝印器材有限公司 一种3d曲面面板玻璃视窗智能移印装置及移印工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2120365C1 (ru) * 1996-12-10 1998-10-20 Юрий Степанович Комиссарчук Способ изготовления продольношовных труб сваркой лазером и устройство для его осуществления

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2084889A (en) * 1935-03-25 1937-06-22 Spang Chalfant & Company Inc Apparatus for welding
US2329938A (en) * 1942-05-30 1943-09-21 Ryan Aeronautical Co Process for connecting halves of tubular ducts
US2748734A (en) * 1950-11-09 1956-06-05 Nat Electric Prod Corp Continuous tube welding apparatus with multi-stage heating
US3361320A (en) * 1964-08-20 1968-01-02 Victor Bobrowski Tapered-tube-making device
US3362056A (en) * 1964-06-05 1968-01-09 Theodor Wuppermann Method of fabricating structural shapes
US3434198A (en) * 1963-02-04 1969-03-25 Kaiser Steel Corp Beam fabricating method
US3535768A (en) * 1967-09-11 1970-10-27 Inland Steel Co Method for producing welded beams

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2084889A (en) * 1935-03-25 1937-06-22 Spang Chalfant & Company Inc Apparatus for welding
US2329938A (en) * 1942-05-30 1943-09-21 Ryan Aeronautical Co Process for connecting halves of tubular ducts
US2748734A (en) * 1950-11-09 1956-06-05 Nat Electric Prod Corp Continuous tube welding apparatus with multi-stage heating
US3434198A (en) * 1963-02-04 1969-03-25 Kaiser Steel Corp Beam fabricating method
US3362056A (en) * 1964-06-05 1968-01-09 Theodor Wuppermann Method of fabricating structural shapes
US3361320A (en) * 1964-08-20 1968-01-02 Victor Bobrowski Tapered-tube-making device
US3535768A (en) * 1967-09-11 1970-10-27 Inland Steel Co Method for producing welded beams

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798745A (en) * 1972-12-13 1974-03-26 Koppers Co Inc Precipitator plate production system with low level bundling and transport
US3800404A (en) * 1972-12-13 1974-04-02 Koppers Co Inc Plate production system with low level bundling, stacking, and transport
US3886651A (en) * 1973-10-11 1975-06-03 Alexandr Borisovich Vernik Method of producing tubes from sheet metal blanks on mill
US4709845A (en) * 1984-03-15 1987-12-01 Kusakabe Electric & Machinery Co. Ltd. Apparatus for continuously producing steel pipes including using rotable beds of tools for different size pipe
US5140123A (en) * 1990-05-25 1992-08-18 Kusakabe Electric & Machinery Co., Ltd. Continuous manufacturing method for a metal welded tube and a manufacturing apparatus therefor
US5607098A (en) * 1993-10-20 1997-03-04 Kusakabe Electric & Machinery Co., Ltd. Tubular shape finishing apparatus for an electro-resistance-welded pipe
US5647241A (en) * 1995-09-22 1997-07-15 Abbey Etna Machine Company Rotary upper roll selector
US5868299A (en) * 1997-05-05 1999-02-09 Abbey Etna Machine Company Method and apparatus for maintaining seam alignment in seam welded tubes
US8987627B2 (en) 2010-04-30 2015-03-24 Dfi Corporation Dual seam electric resistance welded tubes
US20150174632A1 (en) * 2010-04-30 2015-06-25 Dfi Corporation Dual seam electric resistance welded tubes
US9476203B2 (en) * 2015-03-06 2016-10-25 John Powers, III Column/beam maufacturing apparatus and methods
CN110328533A (zh) * 2019-06-24 2019-10-15 杨元恒 一种双线金属方矩形管成型焊接机组
CN112606551A (zh) * 2021-01-05 2021-04-06 深圳市久和丝印器材有限公司 一种3d曲面面板玻璃视窗智能移印装置及移印工艺
CN112606551B (zh) * 2021-01-05 2021-06-22 深圳市久和丝印器材有限公司 一种3d曲面面板玻璃视窗智能移印装置及移印工艺

Also Published As

Publication number Publication date
GB1321444A (en) 1973-06-27
DE2043169B2 (de) 1973-05-30
JPS4817975B1 (de) 1973-06-02
SU402183A3 (de) 1973-10-12
AT290258B (de) 1971-05-25
DE2043169A1 (de) 1971-03-11
FR2061609B1 (de) 1974-07-12
FR2061609A1 (de) 1971-06-25
DE2043169C3 (de) 1973-12-13

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