US3858540A - Making continuous joint between flat sheets - Google Patents

Making continuous joint between flat sheets Download PDF

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Publication number
US3858540A
US3858540A US311766A US31176672A US3858540A US 3858540 A US3858540 A US 3858540A US 311766 A US311766 A US 311766A US 31176672 A US31176672 A US 31176672A US 3858540 A US3858540 A US 3858540A
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United States
Prior art keywords
elements
edge portion
working table
pressing rollers
plane
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Expired - Lifetime
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US311766A
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English (en)
Inventor
Knut Berg
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Svenska Flaktfabriken AB
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Svenska Flaktfabriken AB
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    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder

Definitions

  • ABSTRACT A method and apparatus for making a continuous joint between the longitudinal marginal edges of co- [30] Forelgn Apphcauon Prmmy Data planar sheets wherein the sheets are advanced into the Dec. 9, Sweden apparatus in co planar relation thir adjacent margins overlapped.
  • both margins U-S- Cl. are bent down to provide a pace between the heets [5 e the next tation one margin is bent back so at Fleld of Search 55, 56, 57, 58, edge a down turned engages the down turned 13/514; 29/429 200 243-5, 509; margin of the other sheet.
  • the following station the
  • the apparatus includes UNITED STATES PATENTS pressing rollers above and below the plane of the 2,025,750 12/1935 lngels 29/505 Sheets, the pp and lower r0115 being coupled 2, g2,350 7 1954 close 1 3 54 gether at the first station in the space formed between 2,950,697 8/1960 Flagler 113/54 the sheets. 3.319330 5/1967 Patry et a1.
  • This invention relates to a method of continuously jointing two parallel surface elements of a thin material located in the same plane, either in the form of continuously advanced webs of optional length, preferably of thin sheet metal, or in the form of shaped metal sheets of optional size, by folding together said two surface elements one relative the other.
  • This known method requires an expensive equipment and, besides, it is complicated, because the sheet metal webs during the pre-treatment of the edge portion of each sheet metal web with associated active pressing rollers are to be supported on different levels before the pretreated edge portions are inserted one into the other, which is carried out in one and the same plane.
  • the present invention relates to a method, at which the disadvantages of the aforedescribed methods have been eliminated and which, besides, does not require a bulky arrangement for carrying out the method in a workshop.
  • the method according to the invention is characterized in that the surface elements in the initial phase of the method are positioned in their final positions relative one another such, that their plane edge portions in pairs overlap each other, that in a preparatory phase these edge portions are bent down and parted so that a free space is formed between said edge portions, that thereafter one edge portion is bent by lifting its outer portion to a position adjacent the second edge portion, whereafter both edge portions by successive deformation are brought into a position adjacent each other such, that said second edge portion projects past the first mentioned edge portion, about which said projecting edge portion thereafter is bent and folded, and the fold finally is placed down into a plane in parallel with the planes of the associated surface elements.
  • a preferred application of the method is characterized in that the surface elements at the beginning of the method are positioned in their final positions relative each other and fixed in these positions with their plane edge portions overlapping each other in pairs, whereafter the two edge portions during the advancing movement of the surface elements are bent down and simultaneously parted so much that said edge portions between themselves form a free space, that thereafter one, for example the left-hand one, of the two bentdown edge portions again is subjected successively to a bending upwards and simultaneously with its outer edge portion is lifted to a position adjacent the second edge portion, for example the right-hand one, and thereby the edge portions of the two surface elements are given such a position adjacent each other, that said second edge portion with its outer edge part projects past said firstmentioned edge portion, for example the left-hand one, about which the projecting edge portion, for example the right-hand one, thereafter is bent in steps and caused to enclose the firstmentioned edge portion, for example the left-hand one, to form a tight fold projecting from the surface elements thus jointed, and
  • the free space can be obtained by bending down in steps the lower edge portion of one surface element by a simultaneous soft rolling-down of the above-lying edge portion of the second surface element.
  • the fold whilst being closed is simultaneously knocked down successively to the plane common to the two surface elements.
  • the invention also comprises an arrangement for carrying out the method.
  • the arrangement comprises a working table with pressing rollers supported in a beam and driven by a motor and, whenever applied, feed tables with roller conveyors on both sides of said working table for the surface elements, said table(s) along their lateral edges provided with movable control means.
  • the arrangement is characterized in that the lower surface of the beam is located at a distance above the working table exceeding the total thickness of the overlapping edge portions of the surface elements, that the beam is connected with the working table by a beam holder having a length in the conveying direction of the surface elements somewhat shorter and a width somewhat smaller than the aforesaid free space between the bent-down and separated edge portions of the surface elements, that the pressing rollers located before said free space in the direction of feed of the surface elements are provided with a substantially horizontal axle and adapted to press down the upper edge portion as well as the lower edge portion, that one or more of the pressing rollers located closest after said free space also are provided with a substantially horizontal axle and adapted to lift only one edge portion to join closely the second edge portion, and the remaining pressing rollers located after the limited free space between the surface elements in the direction of feed of said elements are provided with an axle inclined to the horizontal plane or with a horizontal, alternatively vertical, axle and a bevelled surface on the respective pressing roller, followed by at least one pressing roller with a substantially horizontal
  • FIGS. l-A through l-J illustrate the steps of the method used in making a joint in accordance with the present invention
  • FIG. 2 is a diagrammatic plan view of the preferred apparatus of the present invention.
  • FIG. 3 is a view in cross section of the apparatus of FIG. 2.
  • FIGS.'2 and 3 A preferred arrangement for carrying out the method is illustrated in FIGS.'2 and 3 and also described in the following.
  • Two surface elements 1, 2 to be jointed are inserted in the direction of the arrows at A in the lower part of FIG. 2.
  • the overlapping portions of the surface elements are designated by 1a and, respectively, 2a. This is illustrated by pos. l in FIG. 1.
  • the free space is obtained by a soft rolling-down of the upper edge portion la-lb-lc of the surface element 1.
  • This deformation which implies a bending down by steps of the lower edge portion 2a, is illustrated in pos. 2 and pos. 3.
  • Pos. 4 shows the temporary separation of the edge portion 1d, 1e on one side, and the edge portion Zn on the other side, and the effecting of the free space B.
  • This step has rendered it possible for the surface elements 1, 2 to pass on both sides of the beam holder 20 (FIGS. 2,3), which constitutes the rigid connection between the working table and the pressing rollers 15, l6, 17 (FIGS. 2,3) supported on the beam 14 and located and active before the free space B and the pressing rollers 21, 22, 23, 24, 25, 26 (FIGS. 2,3).
  • Pos. 5 shows how the left-hand edge portion with its parts If and lg is subjected to a successive deformation and with its outer edge part 1g is lifted to a position adjacent the second edge portion 2a. This lifting in completed state is illustrated in pos. 6.
  • the right-hand edge portion projects past the left-hand edge portion, the bent-over end of which is designated by 1g.
  • the next step in the jointing operation is to bend in steps the outer end of the right-hand portion about the outer end 1g of the left-hand edge portion.
  • the desired enclosure of the left-hand edge portion lg by the outer end 2c of the right-hand edge portion continues thereafter as illustrated in pos. 8 and 9.
  • Pos. 9 and 10 besides, illustrate the successive folding down of the resulting fold to a position planeparallel with the unitary plane of the jointed surface elements 1,2.
  • the completed fold is designated by 5.
  • the method has been described above with reference to a schematically shown continuous jointing of two optionally narrow or wide surface elements.
  • These surface elements may, within the scope of the inventive idea, be parts of one side in a square duct or circular or oval pipe intended, for example, for a ventilation installation where high requirements with respect to tightness and accurateness to size are to be met even after the completion of the jointing.
  • the method is highly attractive because of its wide application range in practice, due to the free space B. The only limiting factor is that the method is not adapted for jointing surface elements along a corner line of a square duct.
  • FIGS. 2 and 3 which illustrate an embodiment of the apparatus seen from above and, respectively, by
  • working table 7 11 upper plane surface of working table 12 stand or frame of working table 13 foundation of working table 14 beam 14a lower surface of beam 14b width of beam 14c length of beam 15 pressing roller for pos. 2
  • pressing roller for pos. 10 v left-hand conveying table 27a control means for surface element 1
  • roller conveyors 29 right-hand conveying table 29a control means for surface element 2 roller conveyors All pressing rollers are pairs of rollers, which are active above and, respectively, beneath the edge portions placed together and have a surface portion adjusted to the intended working moment on their circumference.
  • the pressing rollers 15-17 work the edge portions of the surface elements downwards
  • the pressing rollers 21-26 work the edge portions of the surface elements upwards, in relation to a plane through the surface elements 1,2.
  • FIGS. 2 and 3 an apparatus is shown which corresponds to a complete equipment for carrying out the method at wide and, therefore, relatively heavy surface elements.
  • the conveying tables 27 and 29 can be abandoned, and, after a first setting, one man easily can guide such a duct or pipe on the working table 10 through the space below the lower surface 14 of the beam and the upper plane surface 11 of the working table for carrying out a jointing method identical to that described above.
  • An apparatus comprising a working table having an upper surface and provided with pressing rollers, the upper rollers being supported in a beam and driven by a drive motor, and conveying tables coplanar with said upper surface and located on both sides of said working table with roller conveyors for work elements, said tables along their lateral edges provided with control means, for conveying the work elements along the plane of said tables in a straight-line path in which the inner edge portions overlap, the lower surface of the beam being located at a distance above the upper plane surface of the working table exceeding the total thickness of the overlapping edge portions of the work elements, the pressing rollers adjacent the feed end of said table operable to bend down said edge portions to separate them and form a free space between said work elements, the beam being connected with the working table by a beam holder in said free space having a length in the conveying direction of the work elements somewhat shorter and a width somewhat smaller than the aforesaid free space between the bent-down and separated edge portions the pressing rollers located immediately after said free space being provided with a substantially horizontal axle and adapted to lift
  • Apparatus for continuously joining two parallel surface elements of thin material located in the same plane comprising a working table, and means to advance the elements along said working table from the feed end to the discharge end thereof, said advancing means operable to feed in the elements in edgeoverlapping relation at the feed end, a beam overlying said working table and extending along the length thereof, roller means on said beam to press against the overlapping edge portions of the elements, means to drive said roller means concurrently with the advance of said elements, said roller means including a pair of pressing rollers having horizontal axes to deflect the overlapping edge portions of said elements downwardly out of said common plane to provide a free space between the bent-down portions, said beam being connected with the working table by a beam holder positioned intermediate the feed end and the discharge end of said working table in said free space, said roller means including pairs of pressing rollers on the discharge side of said holder including a pair having a horizontal axis adapted to lift one of said bent-down edge portions into said common plane and to form a downturned lip along the free edge of said portion

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
US311766A 1971-12-09 1972-12-04 Making continuous joint between flat sheets Expired - Lifetime US3858540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15839/71A SE358568B (cs) 1971-12-09 1971-12-09

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US3858540A true US3858540A (en) 1975-01-07

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US (1) US3858540A (cs)
JP (1) JPS5622288B2 (cs)
AT (1) AT321681B (cs)
BE (1) BE791859A (cs)
CH (1) CH559584A5 (cs)
CS (1) CS166829B2 (cs)
DK (1) DK136109B (cs)
FR (1) FR2162559B1 (cs)
GB (1) GB1417732A (cs)
NL (1) NL7216611A (cs)
NO (1) NO134285C (cs)
SE (1) SE358568B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198002A (en) * 1977-02-04 1980-04-15 Glitsch, Inc. Reactor distribution duct
US5996644A (en) * 1996-05-14 1999-12-07 Jam Kabushiki Kaisha Duct joint structure, assembly tool, duct assembly method and hanger
US6056021A (en) * 1996-05-14 2000-05-02 Jam Kabushiki Kaisha Duct joint structure, assembly tool, duct assembly method and hanger
US6814106B1 (en) * 2000-04-27 2004-11-09 Sir System Kabushiki Kaisha Duct joint structure
ES2318919A1 (es) * 2005-02-01 2009-05-01 Jose Umbelco, S.L. Tren de engatillado de bandas metalicas por sus bordes en forma continua.
CN102389916A (zh) * 2011-10-24 2012-03-28 中国船舶重工集团公司第七○四研究所 一种滚边咬合刀成型工艺
CN104923676A (zh) * 2015-06-26 2015-09-23 丰拓(河南)轻合金有限公司 一种铝板缝合装置
US20180320921A1 (en) * 2015-03-25 2018-11-08 Sterling Custom Sheet Metal, Inc. Insulated register box with boot rail adaptor

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862279A (ja) * 1981-10-09 1983-04-13 旭化成株式会社 簡易二重窓の施工方法
JPS5899489U (ja) * 1981-12-28 1983-07-06 ワイケイケイ株式会社 サツシの三重ガラス取付部構造
JPS59122688A (ja) * 1982-12-28 1984-07-16 佐々木　徳蔵 複層ガラス窓
DE3467720D1 (en) * 1983-11-28 1988-01-07 Strub Ag Method and device for manufacturing a part for a gutter corner
AT383516B (de) * 1985-06-12 1987-07-10 Prager Franz Kg Verfahren zur formung von verbindungsflanschen an blechzuschnitten von rohrleitungsschuessen sowie vorrichtung zu dessen durchfuehrung
AT392908B (de) * 1988-09-20 1991-07-10 Ploetzeneder Anton Granulatfiltereinsatz
AT391642B (de) * 1989-04-24 1990-11-12 Voest Alpine Krems Verbindung mit langfalz
DE3916445A1 (de) * 1989-05-20 1990-11-22 Reinhardt Gmbh Maschbau Falzmaschine, insbesondere zum verbinden der raender von blechen durch falzen
CN104001772B (zh) * 2014-05-26 2016-06-01 河北英凯模金属网有限公司 一种自动金属丝网折边机
CN110005189B (zh) * 2019-04-18 2023-08-01 安阳融达实业有限公司 一种建筑平面模板及其制备装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2025750A (en) * 1931-01-10 1935-12-31 James J Ingels Method of and apparatus for making seamed pipe
US2682850A (en) * 1949-09-13 1954-07-06 Russell E Close Seam closing machine for tubing
US2950697A (en) * 1954-04-21 1960-08-30 Flagler Juanita Sheet material forming apparatus
US3319330A (en) * 1964-02-05 1967-05-16 Lamont & Riley Inc Method of manufacturing an expansion joint cover
US3407640A (en) * 1965-01-30 1968-10-29 Reinhardt Gmbh Maschbau Device for connecting edges of sheet metal
US3422525A (en) * 1966-06-13 1969-01-21 Svenska Flaektfabriken Ab Manufacturing tubular duct sections

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2025750A (en) * 1931-01-10 1935-12-31 James J Ingels Method of and apparatus for making seamed pipe
US2682850A (en) * 1949-09-13 1954-07-06 Russell E Close Seam closing machine for tubing
US2950697A (en) * 1954-04-21 1960-08-30 Flagler Juanita Sheet material forming apparatus
US3319330A (en) * 1964-02-05 1967-05-16 Lamont & Riley Inc Method of manufacturing an expansion joint cover
US3407640A (en) * 1965-01-30 1968-10-29 Reinhardt Gmbh Maschbau Device for connecting edges of sheet metal
US3422525A (en) * 1966-06-13 1969-01-21 Svenska Flaektfabriken Ab Manufacturing tubular duct sections

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198002A (en) * 1977-02-04 1980-04-15 Glitsch, Inc. Reactor distribution duct
US5996644A (en) * 1996-05-14 1999-12-07 Jam Kabushiki Kaisha Duct joint structure, assembly tool, duct assembly method and hanger
US6056021A (en) * 1996-05-14 2000-05-02 Jam Kabushiki Kaisha Duct joint structure, assembly tool, duct assembly method and hanger
US6814106B1 (en) * 2000-04-27 2004-11-09 Sir System Kabushiki Kaisha Duct joint structure
ES2318919A1 (es) * 2005-02-01 2009-05-01 Jose Umbelco, S.L. Tren de engatillado de bandas metalicas por sus bordes en forma continua.
CN102389916A (zh) * 2011-10-24 2012-03-28 中国船舶重工集团公司第七○四研究所 一种滚边咬合刀成型工艺
CN102389916B (zh) * 2011-10-24 2013-09-18 中国船舶重工集团公司第七〇四研究所 一种利用咬合刀成型滚边的工艺
US20180320921A1 (en) * 2015-03-25 2018-11-08 Sterling Custom Sheet Metal, Inc. Insulated register box with boot rail adaptor
US11402121B2 (en) * 2015-03-25 2022-08-02 Sterling Custom Sheet Metal, Inc. Insulated register box with boot rail adaptor
CN104923676A (zh) * 2015-06-26 2015-09-23 丰拓(河南)轻合金有限公司 一种铝板缝合装置

Also Published As

Publication number Publication date
DE2257325A1 (de) 1973-06-20
NO134285B (cs) 1976-06-08
BE791859A (fr) 1973-03-16
CS166829B2 (cs) 1976-03-29
JPS5622288B2 (cs) 1981-05-25
NO134285C (cs) 1976-09-15
DK136109C (cs) 1978-01-23
FR2162559B1 (cs) 1975-11-07
FR2162559A1 (cs) 1973-07-20
AT321681B (de) 1975-04-10
SE358568B (cs) 1973-08-06
NL7216611A (cs) 1973-06-13
DK136109B (da) 1977-08-15
JPS4876770A (cs) 1973-10-16
CH559584A5 (cs) 1975-03-14
GB1417732A (en) 1975-12-17
DE2257325B2 (de) 1976-03-18

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