EP1320429B1 - Verfahren und vorrichtung zum anformen eines flansches oder bordes am ende eines rohres aus blech - Google Patents

Verfahren und vorrichtung zum anformen eines flansches oder bordes am ende eines rohres aus blech Download PDF

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Publication number
EP1320429B1
EP1320429B1 EP01985241A EP01985241A EP1320429B1 EP 1320429 B1 EP1320429 B1 EP 1320429B1 EP 01985241 A EP01985241 A EP 01985241A EP 01985241 A EP01985241 A EP 01985241A EP 1320429 B1 EP1320429 B1 EP 1320429B1
Authority
EP
European Patent Office
Prior art keywords
pipe
bending
tube
section
bearing
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
EP01985241A
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German (de)
English (en)
French (fr)
Other versions
EP1320429A1 (de
Inventor
Manfred Meinig
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.)
MEINIG METU SYSTEM
METU-System Meinig KG
Original Assignee
MEINIG METU SYSTEM
METU-System Meinig KG
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 MEINIG METU SYSTEM, METU-System Meinig KG filed Critical MEINIG METU SYSTEM
Priority to DK01985241T priority Critical patent/DK1320429T3/da
Publication of EP1320429A1 publication Critical patent/EP1320429A1/de
Application granted granted Critical
Publication of EP1320429B1 publication Critical patent/EP1320429B1/de
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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
    • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
    • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
    • B21D19/046—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of tubular products

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a device according to the preamble of Claim 5 (see, e.g., GB-A-1 202 144).
  • Such pipes are mainly used for air ducts, fan housings, Device housing and the like in the ventilation, air conditioning and extraction technology, but also used in process engineering.
  • the Simple shelves can be used with two rollers on beading and flanging machines getting produced.
  • the later perforated flat flanges are produced by printing. It is the Tubular body brought into high rotational speed, which only for very short tubular bodies such as axial fan housings is possible.
  • the pipe end is in a negative form of the to be formed flat flange. With a lever, on whose At the end of a roll, is now on the fast-moving Pipe end "pressed” until the material comes to flow and adapts to the negative mold.
  • the “push” method is similar the deformation of clay on the potter's wheel. It will also be for the application of ring rims to short tube rings, The then then attached to a pipe end and it be attached. This latter method is for example in DE 196 32857 A1.
  • the present invention now seeks a method and a To provide apparatus for carrying out this method with which the one-piece molding also more complicated Flanges and shelves not only on short, but in particular also on long pieces of pipe with economic effort is possible.
  • the basis of the method according to the invention is the advantages the linear swivel bending process also during bending use of pipe ends. It is therefore called circular-swivel bending method designated.
  • the linear swivel bending process can not be transferred without modifications to round tubes, as in these not straight, but curved edges are generated must and even with different radii possible to be produced without tool change.
  • the invention accomplishes this by round clamping of the pipe end from the inside forth, e.g. by means of a clamping washer.
  • This clamping disc has before clamping a slightly smaller diameter as the pipe inside diameter. After insertion she will spread, i. the diameter is increased until they reach clamped with the outer circumference against the inside of the pipe wall.
  • the clamping disc or other used for clamping Device can be equipped with a strong drive axle for the Execution of the tube rotation to be connected.
  • a pivotable bending jaws used in its home position or park position the inside of the tube end abuts. Its axial width should at least be slightly larger than the section to be bent of the pipe end. This ensures that the section to be bent is raised as a whole and its straight shape not changed.
  • the contact surface should of the bending jaw at the pipe end have the same radius like the inside of the pipe, so that the section of the pipe to be bent Pipe end has a large-scale edition.
  • a pressure on the bending point of the pipe from the outside of the tube conveniently by a forming roller or the like, be exercised, with a tip of the forming roll cross section ends at the point where the pipe end is bent shall be.
  • This allows the shape of the bending edge (pointed or around) can be determined quite accurately. Otherwise, the Cross-sectional shape of the form roller by the maximum bending angle of the Anformprofils determined.
  • Figures 1 to 12 each illustrate in schematic Partial representations the operation of the invention Procedure at a pipe end.
  • Fig.1 shows a to Simplification largely broken part section through an unprocessed, in Fig.1 right-pointing pipe end 10 of a tube 12 with a circular cross-section.
  • Fig.2 shows the state of the pipe end 10 after the first processing step.
  • the pipe end 10 is to be bent pipe section become, along a rounded bending edge 14, for example by about 150 ° against the axial direction 16 of the tube 12 is bent outwards.
  • FIG. 3 shows the condition of the pipe 12 after a second circular pivoting bending operation, in which the adjacent to the first piece of pipe 10 second pipe section For example, at a right angle to the Axial direction 16 with a sharp edge 20 to the outside is bent.
  • the contiguous Pipe pieces 10 and 18 existing cone flange emerged which is integrally formed on the tube 12.
  • Figure 4 shows the tube 12 in not yet clamped state near a parked state not spread Clamping disc 22, at a clamping disc 22 under Force application in rotation offset drive shaft 24 fixed is appropriate.
  • a first bending jaw 26 for bending the first pipe section 10 by 150 ° in one of Fig.2 corresponding Position is in Fig.4 in parking position before the bending process partially shown broken away.
  • Figures 1 to 3 with respect to the figures 4 to 12 by 180 ° mirrored on the tube axis 28 perpendicular plane are.
  • a second bending jaw 30 is with respect to first bending bit 26 is rotated by 180 ° about the tube axis 28 also in its rest position before the bending process partially shown broken away.
  • the second bending jaw 30 serves to bend the second pipe section 18 by 90 ° the axial direction 16 in the Fig.3 corresponding Position. 4, a first forming roller 32 and a second forming roller 34 each in their parking positions shown removed from the tube 12.
  • the first form role has a rounded tip section 36 whose flanks 40 enclose an angle of 30 °. 180 ° around the pipe axis 28 is rotated a second forming roller 34 in its parked position provided away from the tube 12, whose cross section has a sharp edge 38 and its flanks 42 a include right angle.
  • the illustrated position of the device parts corresponds to the starting state of the process.
  • Fig.5 shows a following working condition in which the Clamping disc 22 retracted into the tube 12 and according to the Arrows 44 in his the tube 12 spanning from the inside Spreading is extended. Together with the Clamping disk 22 are the bending jaws 26 and 30 in the pipe end have been retracted, however, in terms of their pivoting to bending the pipe end both still in the parking position. Likewise, there are the two form roles 32 and 34 still in the parking position as in the state of Fig.4.
  • the drive shaft 24 according to the arrow 46 in Rotation offset, so that the clamping plate 22 together with the tube 12 rotates while the bending jaws 26 and 30 and the forming rollers 32 and 34 are not about the tube axis 28th rotate.
  • the frictional resistance between the cylindrical Outer surface 48 of the clamping disk and the inner surface of the Pipe 12 is by tensioning the tensioning pulley 22 in their Working position according to Figure 5 so large that the tube 12th also turns against great resistance.
  • the next step of the machining process is in 6, in which the first forming roller 32 according to the Arrow 50 along the shift axis 52 in their at the Outside of the tube 12 tight-fitting working position procedure is.
  • the first bending jaw 26 is then moved according to FIG the arrow 54 from its parking position ( Figure 6) in its working position (Fig.7) by an angle of 150 ° to one on the plane perpendicular axis pivots, thereby the first over the tension pulley 22 protruding pipe section 10 around the first forming roller 32 bent by 150 ° outwards becomes. Since at the same time drive shaft 24 and clamping disk 22 together with the clamped tube 12 to the tube axis 28th turn, after a few turns of these parts to the Pipe axis 28, the pipe section 10 without distortion around the rounded Edge 14 of tube 12 bent by 150 ° outwards. By the rotatable mounting of the forming roller 32 is at the bending point occurring frictional resistance with the pipe section 10th significantly reduced.
  • the second Bending jaws 30 according to the arrow 64 from its parking position in the working position pivots, whereby the second on the Clamping disc 22 protruding pipe section 18 by 90 ° with a corresponding to the cross section of the second forming roller 34 sharp bending edge 20 is bent by 90 ° to the outside.
  • the complete bending of the second pipe section 18 from the pipe 12th away to the outside is achieved when the rotating parts 24,22 and 12 a few turns around the tube axis 28 executed to have.
  • Figures 13 to 16 is a preferred embodiment the device for carrying out the method according to the invention with its parts essential to the invention schematically shown.
  • the device for carrying out the method according to the invention with its parts essential to the invention schematically shown.
  • the tension pulley 22 the drive shaft 24 and the bending jaw 26.
  • a bending jaws 26 and a forming roller 32nd are shown for a single bending operation of a projecting pipe section 10 are suitable.
  • Your Explanation in detail can be omitted since they work in the same way as the ones in the figures 13 to 16 parts shown.
  • Each comprising a bending jaws 26 and a forming roller 32 Work unit is always on a movable carriage 70 mounted, with several carriages radiating on one Base plate 72 may be arranged. That way you can the individual work units slightly to the respective diameter adapted to be processed pipe 12.
  • everyone Carriage 70 may be along two parallel carriage guides 71 according to the double arrow 74 along one of a rotary drive 76 offset in rotation threaded spindle 78 are moved.
  • the leadership of the sector plate 84 in the required pivoting along with the bending jaws 26 takes place by Guide rollers 94, which in arcuate guide grooves 96 run in the side plates 80.
  • the guide rollers 94 stand on both sides of the sector plate 84 and are each guided in a guide groove 96.
  • the cross section of the sector plate 84 corresponding cylindrical Peripheral surface of the sector plate 84 is a serration 98 provided, which is driven by a rotary drive 100 Drive pinions 102 is engaged.
  • the sector plate 84 can thus from the parking position of the bending bale 26 according to Figures 13 and 14 corresponding position in one of the working position the bending jaw 26 corresponding position 15 are pivoted.
  • the tilt angle of the sector plate 84 can be largely freely chosen and corresponds in the present case the angle between the two flanks of the cross section of the forming roller 32nd
  • the illustrated preferred embodiment of Clamping disc therefore has a division into several, in illustrated embodiment six sectors 118, the in a manner to be explained in more detail below by the expanding end 120 one with an axial drive, for example in the form of a hydraulic cylinder 124 provided drawbar 122 from that in the left half of Figures 17 and 18th illustrated inner parking position in one in the right Half of Figures 17 and 18 shown outer working position in a tensioned system on the inside of the tube 12 be spread.
  • the number of sectors is arbitrarily large.
  • a larger number of sectors has the advantage that the Column 126 between the sectors 118, which during spreading the clamping disc 22 arise, become smaller and of the Wall of the tube 12, even if it is very thin-walled, without Shape change of the pipe to be bridged.
  • the sectors 118 are circular ring sectors and ends in the distance from the Pipe axis 28 in a cylinder cut-shaped inner surface 128.
  • the radial width of the sectors 118 can be chosen freely be to the diameter of the clamping plate 22 the respective Adjust the diameter of the tube 12. This adjustment can by simply replacing the sectors 118.
  • the Inner surfaces 128 of the sectors 118 are located on the cylindrical Outer surfaces 130 of circular sector-shaped clamping jaws 132nd at.
  • the sectors 118 are connected by radial screws 142 to the Clamping jaws 132 attached.
  • the jaws 132 have a with respect to the tube axis 28 oblique inner face 134, each on a side surface 136 of the widening End 120 of the pull rod 122 abut.
  • the expanding end 120 has a Hexagonal cross-section, so that each have a side surface for each of the six jaws 132 is provided.
  • the intended for rotating the clamping disk and the tube 12 Main drive shaft 24 is centrally pierced axially, and this Bore is penetrated by the tie rod 122.
  • the hydraulic cylinder 124 can be the drawbar 122nd from the parking position shown in the lower half of Fig.19 138 in the in the upper half of Fig.19 shown Move spreading or working position 140.
  • the sectors 118 are selected from those in the left halves of FIG Figures 17 and 18 illustrated parking position in low Distance from the inner surface of the tube 12 in the right Halves of Figures 17 and 18 shown on the inner surface of the tube 12 under pressure applied working position adjusted. This adjustment is made by an appropriate Displacement of the clamping jaws 132 mediated.
  • the drive shaft 24 passes through a cutout 144 of the Base plate 72 of the entire device and is in a the Professional common sense rotatably mounted and by a Drive motor 146 with hollow shaft gear 148 in rotation added.
  • the opposite end of the drive shaft 24th has a mushroom-shaped extension 150 with a plan End face 152, on the plane sliding surfaces 154 of the clamping jaws 132 radially slidably abut.
  • the sliding surfaces 154th opposite sliding surfaces 156 of the clamping jaws are applied the plane inner surface of a counter-disc 158 slidably, by screws 160 on the mushroom-shaped extension 150th is attached.
  • the screws 160 enforce advanced Holes 169 in the jaws 132, which the required allow slight radial displacement of the jaws 132.
  • the screws 160 are comprised of spacers 162 which together with the holes 169 of the jaws 132 a linear ensure radial guidance of the clamping jaws 132.
  • the hydraulic cylinder 124 for actuating the drawbar 122 is axially supported on the hollow shaft gear 148.
  • the in itself already large force of the hydraulic cylinder 124 can be through the taper of the expanding end 120 of the drawbar 122 with respect to the pipe axis 28 again increase arbitrarily.
  • the necessary large clamping force is generated, which one sufficient frictional engagement of the clamping plate 22 to the pipe wall generated to the pipe against the resistance of the bending tools (Bending jaws 26 and forming roller 32) to rotate.
  • the bevel of the expanding end 120 are also reversed, i. in Fig.19 to the right, when working with a differently actuated push rod becomes.
  • the retrieval of the jaws 132 while relaxing the Clamping disc 22 back to its parking position can be on easy Way done by springs, not shown, which in the individual jaws are inserted, or by a running around the outer periphery of the jaws, also not shown endless tension spring, which in a not shown groove is inserted.
  • the drive shaft 24 at one in Fig.20 illustrated embodiment also with a ball slewing ring 164 are stored, the outside (or inside) is provided with a toothing 166.
  • the drive motor 146 is set next to the bell ring 164 in this case.
  • the Pinion 168 of its output shaft 170 engages in the toothing of the ball turntable 164 and provides for the drive of the Drive shaft 24.
  • the Professional common types of storage possible possible.
  • FIG. 21 and 22 Another advantageous embodiment of the generally 22nd designated clamping disc and its drive is in the Figures 21 and 22 shown.
  • the tensioning pulley 22 is running around the circumference, by a sloping slot 172 split clamping ring 174th with cylindrical peripheral surface 116 and conical inner surface 176 on.
  • At the conical inner surface 176 is the same Conicity owning outer surface 178 of a clamping plate 180th which widened by means of bolts 182 and nuts 184 on End 186 of the tie rod 122 is attached.
  • FIGS. 23 to 35 are advantageous Embodiments of bending jaws 26 and shaping rollers 32 together with a portion of the tube 12 to be deformed as well a portion of the spread clamping disk 22 is shown.
  • the Figures 23 and 24 show a first embodiment of this Parts, wherein in the manner described above in the Working position moved forming roller 32 on the outside of the Pipe 12 presses.
  • the in the manner described above pivotable bending jaws 26 is in its parking position the inside of the over the clamping disc 22 protruding, too bending pipe piece 10, wherein the pipe wall between Clamping disk 22 and forming roller 32 clamped and held is.
  • the tip 36 of the cross section of the forming roller 32 terminates the point where the projecting pipe section 10 are bent should. Due to the shape of the forming roller 32, the shape of the Bending edge can be determined at the pipe end.
  • the pivotable bending jaws 26 is in its parking position according to Fig.23 on the inside of the pipe section 10 at. His axial width should be at least slightly larger than that axial length of the pipe section to be bent 10. This is Ensure that the piece of pipe to be bent as a whole is raised and its straight shape does not change. As well should the cylindrical contact surface 190 of the bending barb 26th have the same radius at the end of the pipe as the pipe inside, so that the pipe section 10 to be bent a large-scale edition Has.
  • the insertion side of its cylindrical outer surface 48th have a conical taper 192.
  • FIGS. 25 to 28 show various embodiments the forming roller 32 or 34 with a slender tip 36 and rechtwinkliger Tip 38 shown.
  • the tip 36 serves for Bending the pipe section 10 by 150 ° while the tips 38 serve to bend the pipe section 10 by 90 °.
  • Fig.29 is shown schematically how to lower at Claims to the dimensional accuracy of the molded flange or Bordes without form roller only with clamping disc 22 and Bending jaws 26 can bend.
  • Figures 30 and 31 show an embodiment of the Biegebackens 26 with almost semi-cylindrical bearing surface 190 in parking position (Fig.30) and working position (Fig.31).
  • Fig.32 shows a partial enlarged view on a slightly enlarged scale a slightly different shaped bending jaw 26 with flatter cylindrical contact surface 190 which by screws 86 at a partially shown, pivoting sector plate 84 is attached.
  • the support surface 190 is located with full frictional force on the inner wall of the pipe, not shown at.
  • a similar bending jaw 26 as in Fig. 32 but with less friction between contact surface 190 and Pipe inner wall shown.
  • the Working radius of the contact surface 190 of the bending jaw 26 the Pipe inside diameter corresponds. Without serious disadvantages
  • the radius of the contact surface 190 may also be smaller as the pipe inside radius. This makes it possible with the the same bending jaws several tube diameter in alternation too to edit.
  • a minimal friction between bending jaws 26 and the inner wall of the tube 12 is achieved when the bending jaw 26 according to Fig.35 as a solid cylinder with cylindrical contact surface 190th is formed, wherein the entire cylindrical bending jaws 26 about a rotary shaft 200 rotatably on the sector plate 84th is stored.
  • the lowest friction is achieved because but usually not enough space for a large diameter of the cylindrically shaped bending jaw 26 available stands, you have disadvantages in the wave formation and stretching the pipe wall in purchasing. These disadvantages are smaller with larger pipe wall thicknesses, so that quite for sheet thicknesses from 1.5 mm with such a "bending roll" on Position of a bending jaw 26 can be worked.
  • the entire device according to the invention for carrying out the The circular pivot bending method according to the invention can optionally with both horizontal and vertical tube axis 28 are used, the former for straight tubes and to favor the latter for short tubular fittings is.
  • Each device 204 may have its own driven threaded spindle 208 on the rail system 202 be moved.
  • the devices 204 are moved apart, until the tube length of the tube 12 between the Clamping washers 22 fits. Thereafter both devices 204 travel together, the clamping discs 22 dive into the pipe ends until to a stop, which on the processing length of Pipe end is set. Both clamping disks 22 are in the working position is tense, and then it starts up Both sides simultaneously from the editing process. For removal of the tube 12, the devices 204 have to be moved apart again become.
EP01985241A 2000-09-25 2001-09-22 Verfahren und vorrichtung zum anformen eines flansches oder bordes am ende eines rohres aus blech Expired - Lifetime EP1320429B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK01985241T DK1320429T3 (da) 2001-09-22 2001-09-22 Fremgangsmåde og anordning til anformning af en flange eller kant ved enden af et rör af metalplade

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10047310 2000-09-25
DE10047310A DE10047310A1 (de) 2000-09-25 2000-09-25 Verfahren und Vorrichtung zum Anformen eines Flansches oder Bordes am Ende eines Rohres aus Blech
PCT/EP2001/010962 WO2002024369A1 (de) 2000-09-25 2001-09-22 Verfahren und vorrichtung zum anformen eines flansches oder bordes am ende eines rohres aus blech

Publications (2)

Publication Number Publication Date
EP1320429A1 EP1320429A1 (de) 2003-06-25
EP1320429B1 true EP1320429B1 (de) 2004-08-25

Family

ID=7657450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01985241A Expired - Lifetime EP1320429B1 (de) 2000-09-25 2001-09-22 Verfahren und vorrichtung zum anformen eines flansches oder bordes am ende eines rohres aus blech

Country Status (18)

Country Link
US (1) US20040089043A1 (pt)
EP (1) EP1320429B1 (pt)
JP (1) JP2004508936A (pt)
KR (1) KR20030065482A (pt)
CN (1) CN1466499A (pt)
AT (1) ATE274381T1 (pt)
AU (1) AU2002218191A1 (pt)
BR (1) BR0114106A (pt)
CA (1) CA2424583A1 (pt)
CZ (1) CZ297829B6 (pt)
DE (2) DE10047310A1 (pt)
ES (1) ES2225627T3 (pt)
HU (1) HUP0302953A2 (pt)
IL (1) IL155014A0 (pt)
NO (1) NO20031337D0 (pt)
PL (1) PL200911B1 (pt)
RU (1) RU2003112016A (pt)
WO (1) WO2002024369A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10215112C1 (de) 2002-04-05 2003-09-25 Meinig Metu System Stossverbindung zwischen zwei Rohrabschnitten aus Blech und Verfahren zu deren Herstellung
DE102005032350A1 (de) * 2005-07-08 2007-01-11 Metu Meinig Aktiengesellschaft Verfahren und Vorrichtung zum einstückigen Anformen eines Flansches am Ende eines runden oder ovalen Rohres aus dünnwandigem Blech sowie nach dem Verfahren hergestelltes Rohr
US8194643B2 (en) * 2006-10-19 2012-06-05 Embarq Holdings Company, Llc System and method for monitoring the connection of an end-user to a remote network
JP5923173B2 (ja) * 2012-09-03 2016-05-24 川崎重工業株式会社 スピニング成形方法及びスピニング成形装置
CN102974672A (zh) * 2012-12-21 2013-03-20 安徽巨一自动化装备有限公司 大开角包边工具
KR101254225B1 (ko) * 2013-01-08 2013-04-18 김재수 롤러스피닝을 적용한 롱넥 플랜지 제조장치 및 이를 이용한 롱넥 플랜지 제조방법
EP3856429A4 (en) * 2018-09-27 2022-06-22 Inno-Spin LLC MULTI-AXIS ROLL FORMING METHODS, SYSTEMS, AND PRODUCTS
CN117102310B (zh) * 2023-10-19 2023-12-26 山东兆鑫石油工具有限公司 不锈钢内衬防腐油管端面旋转式翻边以及焊接装置

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Publication number Priority date Publication date Assignee Title
US2498686A (en) * 1946-06-10 1950-02-28 Struthers Wells Corp Machine for flanging cylindrical shells
US2921549A (en) * 1955-11-30 1960-01-19 Earl L Schwenk Holding fixture for spin-forming blanks
GB1202144A (en) * 1968-01-23 1970-08-12 Bristowe Buckland Saxton Improvements in methods for the production of cylindrical flanged casings or reels and in apparatus therefor
DE2053005B2 (de) * 1970-10-28 1973-05-30 Leifeld & Co, 4730 Ahlen Verfahren und vorrichtung zur herstellung von schraegschulterfelgen fuer lkw
DE2231842A1 (de) * 1972-06-29 1974-01-17 Leifeld & Co Schraegschulterfelge und verfahren zu ihrer herstellung
DE2720825A1 (de) * 1977-05-09 1978-11-23 Coil Protection Service S R L Verfahren und vorrichtung zur herstellung von geschlitzten boerdelflanschen aus ebenen blechen oder baendern
US4117704A (en) * 1977-05-13 1978-10-03 Societe Coil Protection Service Method and apparatus for producing a bent angle piece from a sheet-metal
US4862719A (en) * 1988-01-20 1989-09-05 Comeq, Inc. Cylinder flanging machines
FI89139C (fi) * 1992-04-10 1993-08-25 Gs Hydro Oy Foerfarande och anordning foer att forma en krage vid aendan av ett roer i raett vinkel
FI93620C (fi) * 1993-05-28 1995-05-10 Gs Hydro Oy Menetelmä ja laitteisto suorakulmaisen kauluksen muodostamiseksi putken päähän
NL9400927A (nl) * 1994-06-08 1996-01-02 Johan Massee Werkwijze en inrichting voor het vormen van een rand aan een lampreflector.
US5983496A (en) * 1996-03-15 1999-11-16 J.A. Hermanson Circular and oval flanged rings for connecting ducting and method of making

Also Published As

Publication number Publication date
DE10047310A1 (de) 2002-05-02
ATE274381T1 (de) 2004-09-15
BR0114106A (pt) 2003-07-22
AU2002218191A1 (en) 2002-04-02
JP2004508936A (ja) 2004-03-25
DE50103424D1 (de) 2004-09-30
NO20031337D0 (no) 2003-03-24
CN1466499A (zh) 2004-01-07
EP1320429A1 (de) 2003-06-25
PL359823A1 (en) 2004-09-06
IL155014A0 (en) 2003-10-31
CZ2003853A3 (cs) 2003-10-15
HUP0302953A2 (en) 2003-12-29
KR20030065482A (ko) 2003-08-06
PL200911B1 (pl) 2009-02-27
RU2003112016A (ru) 2004-12-20
WO2002024369A1 (de) 2002-03-28
ES2225627T3 (es) 2005-03-16
CZ297829B6 (cs) 2007-04-11
US20040089043A1 (en) 2004-05-13
CA2424583A1 (en) 2003-03-24

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