US3838498A - Apparatus for and a method of joining the edges of two sheet portions together - Google Patents

Apparatus for and a method of joining the edges of two sheet portions together Download PDF

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Publication number
US3838498A
US3838498A US00333291A US33329173A US3838498A US 3838498 A US3838498 A US 3838498A US 00333291 A US00333291 A US 00333291A US 33329173 A US33329173 A US 33329173A US 3838498 A US3838498 A US 3838498A
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US
United States
Prior art keywords
bends
free end
bend
zone
roller
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Expired - Lifetime
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US00333291A
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English (en)
Inventor
X Lipp
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SILO VERFAHRENS AG
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SILO VERFAHRENS AG
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Publication date
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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part

Definitions

  • the present invention relates to apparatus for and a method joining together adjacent sheet portions.
  • the invention is particularly concerned with the joining of plastically deformable metal sheet, in which one of the edges has two spaced bends each of about 90 and each made in the same direction, and the other edge additionally has an approximately 90 bend made in the opposite direction and situated farther away from the end of the plate, so that the edges are each formed with a U-shaped section.
  • the object of this invention is to eliminate this additional operation so that there is no need to carry out any action on the first arm to obviate the springing back thereof.
  • apparatus for connecting together two abutting sheet portions each of which is formed at its edge with a substantially U-shaped section comprising means adapted to receive the portions with one U- shaped section enclosed within and substantially at right angles to the other U-shaped section, first deforming means for deforming one arm of said other U- shaped section over one arm of said one U-shaped section, said first deforming means comprising two deforming members one of which includes a groove with an inclined side operative to carry out said aforementioned arm deforming action, and second deforming 'means, to which the sheet portions pass after said first performing means, comprising two deforming members one of 'which includes a groove and the other of which includes a wedge shaped projection aligned with the groove, said second deforming means being operative to deform the other arm of the enclosing U-shaped section and the base of the enclosed U-shaped section so as to reduce the angle between this arm and base and the enclosed arm of the enclosed U-shaped section while simultaneously aligning the enclosed and
  • a method of connecting together two abutting sheet portions each of which is formed at its edge of a U-shaped section and with the U-shaped section of one portion enclosed with and substantially at right angles to the other U-shaped section including the steps of feeding the sheet portions to first deforming means, deforming an arm of the enclosing U-shaped section over an arm of the enclosed U-shaped section, feeding the thus deformed sheet portions to second deforming means deforming the other arm of the enclosing U- shaped section and the base of the enclosed U-shaped section so as to reduce the angle between this arm and base and the enclosed arm of the enclosed U-shaped section while simultaneously aligning the enclosed and enclosing arms.
  • FIG. 1 is a side elevation of one embodiment of apparatus for forming together two sheet portions
  • FIG. 2 shows the edges of the two sheets in the starting conditions first before entering the apparatus of FIG. 1;
  • FIG. 3 is a section on the line IIIIII of FIG. 1 with inserted sheets prepared in accordance with FIG. 2;
  • FIG. 4 to FIG. 6 are respectively sections on the lines IVIV, V--V and VIVI in FIG. 1 showing the formation of the sheets on those sections.
  • rollers 2 9 are mounted in a frame 1 so as to be vertically adjustable and rotatable.
  • the two rollers of each pair are positively connected to each other by gearwheels.
  • One roller of each pair is adapted to be driven from the adjacent pair by means of a chain, each chain connecting only two adjacent pairs of rollers.
  • One of the gearwheels connected to the rollers 2 9 so as to rotate therewith is connected to a drive motor so as to be driven therefrom.
  • the rollers 2 9 are thus each adapted to be driven at the same speeds.
  • the sheet 11 has three bends l3 15, each made through an angle of 90, the bends 14 and 15 being made in the same direction and the bend 13 being made in the opposite direction thereto.
  • the sheet 12 has two bends l6 and 17 each made through 90 in the same direction.
  • the bends 13, 14 and 16, 17 and preferably also l4, 15 are equidistant from one another.
  • the free ends of the sheets 11 and 12 bear the references 18 and 19 and the zones between the bends bear the references 21, 22 and 23 respectively.
  • 22 and 23 are first zones in metal sheets 11 and 12, respectively
  • 21 is a second zone in metal sheet 12.
  • each sheet is formed with a U- shaped section.
  • the upright axis of the U is parallel to the plane of the sheet; whereas in the case of sheet 11 the upright axis of the U is perpendicular to the plane of the sheet 11.
  • the sheets 11 and 12 may be flat or be bent about an axis extending in parallel relationship to the bends.
  • the sheets 11, 12 having the bends l3 17 may be bent about an axis at right angles to the zones 21 and 23 in FIG.
  • the finished fold may therefore extend in parallel relationship to the tube longitudinal axis, in the form of a ring around its periphery, or in the form of a spiral or helix on its periphery.
  • the free end 19 is bent through an angle of between 15 and more particularly between 30 and 60, by means of the rollers 2, 3.
  • the roller 3 has an annular groove 27 which is disposed between two flanges and which has an inclined wall 28 and a wall 29 extending at right angles to the axis of rotation.
  • the roller 2 is of cylindrical construction.
  • the roller 5 has an annular projection 33, the inclined surface 34 of which abuts the zone 23 and the wall of which at right angles to the axis abuts the free end 19.
  • the rollers 4 and 5 also have'fianges 36 and 37, of which the flange 36 has the wall 32 abutting the zone 22 and bounding the annular groove 30.
  • the free end 19 engages in an acute angle and is therefore prevented from springing back.
  • the wall 32 also ensures that when the free end 19 is bent in by the roller 5 the zone 22 is not pressed in the direction of the roller 4.
  • the pair of rollers 6, 7 serves to place the free ends 18, 19 in parallel relationship and the zone 22 in parallel relationship to the zones 21 and 23, and to apply the free end 19 against the zone 23.
  • the roller 6 has. an annular groove 41 which has an inclined wall 42 and the roller 7 has an annular bead 43 which cooperates with the annular groove il and which has a corresponding inclined wall 44.
  • the rollers 6 and 7 also have annular flanges 45 and 46.
  • annular groove 27 of the roller 3 is situated on one side of the parts 18, 19, 21, 22,23 being processed, the annular grooves 30 and 41 of the rollers 4 and 6 are situated on the other side.
  • second deformation means for increasing all three of said bends in said first part and the free end bend of said second part while decreasing the bend between the first zone and the sheet portion of said second part wherein all of said bends formed by said second deformation means are formed simul taneously; and I third deformation means for further increasing said first and second bends of said first part and said second bend of said second part from said bends formed by said second deformation means to bends of substantially 180 where by said free end and said first and second zones of said first part and said free end and said first zone of said second part are all substantially parallel so that the first, second and third deformation means prevent the free end portion of said first part from interfering with the formation of a solid connection of the abutting edges of said first and second sheet metal parts.
  • An apparatus further comprising: fourth deformation means for decreasing the bend between the second zone and the sheet metal portion of said first part while simultaneously increasing the bend between the first zone and the sheet metal portion of said second part thus making the free end and first and second zones of said first part, and the free end and first zones of said second part, perpendicular to said first and second sheet metal parts.
  • first, second, third and fourth deformation means each comprise pairs of rollers, the two rollers of each of said pairs having axes which are parallel to each other and wherein the adjacent cylindrical peripheral surfaces of the two rollers of eachof said first, second, third and fourth deformation means are shaped to increase and decrease the initial bends of each of said first and second sheet metal parts.
  • said first roller of said first deformation means has at least a portionof said peripheral surface inclined with respect to the axis of said roller to form an angle in the range of 30 to 60, said inclined peripheral surface being operative to increase the angle of said first bend which defines the free end portion of said first part so that said free end portion occupies a new position substantially midway between the position and the plane occupied by the free end portion of said second part.
  • one roller of said pair of rollers comprising said pair of rollers comprising said second deformation means includes a first projection extending around the cylindrical peripheral surface of said one roller, and wherein a groove is defined between said first projection and a second projection extending around the cylindrical surface of said one roller, said second projection having an inclined surface on the groove side thereof; wherein said other roller of said pair of rollers comprising said second deformation means includes rectangular and wedge shaped projections extending around the cylindrical peripheral surface of said other roller to form a groove defined between said rectangular and wedge shaped projections; and wherein said wedge shaped projection of said other roller extends into said groove of said one roller, said wedge shaped projection being spaced apart from said inclined surface of said second projection of said one roller to accommodate the sheet material of said first and second parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US00333291A 1972-03-02 1973-02-16 Apparatus for and a method of joining the edges of two sheet portions together Expired - Lifetime US3838498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2210055A DE2210055C3 (de) 1972-03-02 1972-03-02 Verfahren zum Verbinden aneinanderliegender Ränder von Blechen durch Falzen

Publications (1)

Publication Number Publication Date
US3838498A true US3838498A (en) 1974-10-01

Family

ID=5837692

Family Applications (1)

Application Number Title Priority Date Filing Date
US00333291A Expired - Lifetime US3838498A (en) 1972-03-02 1973-02-16 Apparatus for and a method of joining the edges of two sheet portions together

Country Status (32)

Country Link
US (1) US3838498A (pt)
JP (1) JPS529433B2 (pt)
AR (1) AR196431A1 (pt)
AT (1) AT323513B (pt)
AU (1) AU470622B2 (pt)
BE (1) BE795306A (pt)
BG (1) BG29566A3 (pt)
BR (1) BR7301469D0 (pt)
CA (1) CA977626A (pt)
CH (1) CH555711A (pt)
CY (1) CY964A (pt)
DD (1) DD102088A5 (pt)
DE (1) DE2210055C3 (pt)
DK (1) DK146586C (pt)
ES (1) ES410876A1 (pt)
FI (1) FI55944C (pt)
FR (1) FR2174557A5 (pt)
GB (1) GB1421986A (pt)
HK (1) HK71178A (pt)
HU (1) HU165567B (pt)
IE (1) IE37280B1 (pt)
IL (1) IL41655A (pt)
IT (1) IT978914B (pt)
NL (1) NL148249B (pt)
NO (1) NO135660C (pt)
PH (1) PH10144A (pt)
PL (1) PL83540B1 (pt)
RO (1) RO64627A (pt)
SE (1) SE403053B (pt)
SU (1) SU553916A3 (pt)
YU (1) YU39904B (pt)
ZA (1) ZA73822B (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160476A (en) * 1974-09-16 1979-07-10 Raypak, Inc. Securement of heat exchanger surfaces to tubes by lock seaming and method of fabrication
US6457226B1 (en) 1998-09-03 2002-10-01 Guido-Michael Krehle Process for beading sheet metal parts in a beading machine
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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243761A (en) * 1975-10-01 1977-04-06 Knudson Gary Art Device for making seam
DE3031247A1 (de) * 1980-08-19 1982-03-25 Alfred Teves Gmbh, 6000 Frankfurt Unterdruckgehaeuse fuer einen bremskraftverstaerker
JPS6352372U (pt) * 1986-09-24 1988-04-08
DE102018115382B4 (de) * 2018-06-26 2022-01-05 Roland Ruegenberg Verbinden von Blechendabschnitten mittels Umformen
DE102020117492B4 (de) * 2020-07-02 2022-01-13 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines mehrlagigen Hitzeschilds

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1976148A (en) * 1930-10-30 1934-10-09 Sonntag Xaver Machine for beading over sheet metal flanges
US2171297A (en) * 1937-09-16 1939-08-29 Zahner Andrew Sheet metal seaming machine
US2275629A (en) * 1939-06-19 1942-03-10 James J Ingels Multiple rolling machine
US2436383A (en) * 1946-05-27 1948-02-24 Harold V Dettman Method and apparatus for bending sheet material
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
GB899446A (en) * 1960-09-13 1962-06-20 Metal Holding Company An apparatus for joining the edges of metal sheets or strips
US3346941A (en) * 1964-02-05 1967-10-17 Lamont & Riley Inc Means for manufacturing an expansion joint cover
US3407640A (en) * 1965-01-30 1968-10-29 Reinhardt Gmbh Maschbau Device for connecting edges of sheet metal
US3610191A (en) * 1969-05-08 1971-10-05 Ralph N Harris Jr Apparatus for forming standing seams along the edges of sheet material
US3771482A (en) * 1971-05-05 1973-11-13 Thompson Roofing Co Inc Seam forming machine
US3773005A (en) * 1972-12-11 1973-11-20 Textron Inc Crimping machine for standing seam roofs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807020U (de) * 1958-11-06 1960-03-03 Albert Trmata Vorrichtung zum profilieren der raender von metallbaendern und zum zusammenpressen der profilierten raender.

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1976148A (en) * 1930-10-30 1934-10-09 Sonntag Xaver Machine for beading over sheet metal flanges
US2171297A (en) * 1937-09-16 1939-08-29 Zahner Andrew Sheet metal seaming machine
US2275629A (en) * 1939-06-19 1942-03-10 James J Ingels Multiple rolling machine
US2436383A (en) * 1946-05-27 1948-02-24 Harold V Dettman Method and apparatus for bending sheet material
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
GB899446A (en) * 1960-09-13 1962-06-20 Metal Holding Company An apparatus for joining the edges of metal sheets or strips
US3346941A (en) * 1964-02-05 1967-10-17 Lamont & Riley Inc Means for manufacturing an expansion joint cover
US3407640A (en) * 1965-01-30 1968-10-29 Reinhardt Gmbh Maschbau Device for connecting edges of sheet metal
US3610191A (en) * 1969-05-08 1971-10-05 Ralph N Harris Jr Apparatus for forming standing seams along the edges of sheet material
US3771482A (en) * 1971-05-05 1973-11-13 Thompson Roofing Co Inc Seam forming machine
US3773005A (en) * 1972-12-11 1973-11-20 Textron Inc Crimping machine for standing seam roofs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160476A (en) * 1974-09-16 1979-07-10 Raypak, Inc. Securement of heat exchanger surfaces to tubes by lock seaming and method of fabrication
US6457226B1 (en) 1998-09-03 2002-10-01 Guido-Michael Krehle Process for beading sheet metal parts in a beading machine
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

Also Published As

Publication number Publication date
NO135660C (pt) 1977-05-11
DE2210055B2 (de) 1975-01-30
GB1421986A (en) 1976-01-21
NL148249B (nl) 1976-01-15
HU165567B (pt) 1974-09-28
IL41655A0 (en) 1973-05-31
IT978914B (it) 1974-09-20
AU470622B2 (en) 1976-03-25
BG29566A3 (en) 1980-12-12
PL83540B1 (pt) 1975-12-31
IE37280B1 (en) 1977-06-22
JPS529433B2 (pt) 1977-03-16
FI55944B (fi) 1979-07-31
YU31473A (en) 1982-06-30
HK71178A (en) 1978-12-08
PH10144A (en) 1976-09-06
DK146586C (da) 1984-04-30
YU39904B (en) 1985-06-30
NO135660B (pt) 1977-01-31
NL7301607A (pt) 1973-09-04
CY964A (en) 1978-12-22
DK146586B (da) 1983-11-14
ZA73822B (en) 1973-11-28
AR196431A1 (es) 1973-12-27
SE403053B (sv) 1978-07-31
CA977626A (en) 1975-11-11
BR7301469D0 (pt) 1974-05-16
DE2210055A1 (de) 1973-09-13
IE37280L (en) 1973-09-02
CH555711A (de) 1974-11-15
ES410876A1 (es) 1975-12-01
JPS48101353A (pt) 1973-12-20
AU5219973A (en) 1974-08-15
RO64627A (fr) 1979-01-15
SU553916A3 (ru) 1977-04-05
DD102088A5 (pt) 1973-12-05
AT323513B (de) 1975-07-10
FR2174557A5 (pt) 1973-10-12
BE795306A (fr) 1973-05-29
IL41655A (en) 1977-01-31
DE2210055C3 (de) 1975-09-18
FI55944C (fi) 1979-11-12

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