EP1197272B1 - Zweiwalzen-Rundmaschine sowie Verfahren zum Runden von Blechen - Google Patents

Zweiwalzen-Rundmaschine sowie Verfahren zum Runden von Blechen Download PDF

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Publication number
EP1197272B1
EP1197272B1 EP01122326A EP01122326A EP1197272B1 EP 1197272 B1 EP1197272 B1 EP 1197272B1 EP 01122326 A EP01122326 A EP 01122326A EP 01122326 A EP01122326 A EP 01122326A EP 1197272 B1 EP1197272 B1 EP 1197272B1
Authority
EP
European Patent Office
Prior art keywords
roll
rounding
roller
rollers
sheet
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
EP01122326A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1197272A3 (de
EP1197272A2 (de
Inventor
Eugen Müller
Jakob Müller
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.)
Elpatronic AG
Original Assignee
Elpatronic AG
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 Elpatronic AG filed Critical Elpatronic AG
Publication of EP1197272A2 publication Critical patent/EP1197272A2/de
Publication of EP1197272A3 publication Critical patent/EP1197272A3/de
Application granted granted Critical
Publication of EP1197272B1 publication Critical patent/EP1197272B1/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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
    • B21D5/146—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers one roll being covered with deformable material

Definitions

  • the invention relates to a two-roll rounding machine according to the preamble of claim 1 and to a method for rounding sheets according to the preamble of claim 8.
  • Two-roll round machines are known.
  • the sheet to be rounded is sandwiched between a metal round roller and a plastic pressure-elastic coating guide roller, e.g. Neoprene®, wherein the rollers are pressed against each other, so that forms a depressed area in the pressure-elastic coating, in which a deformation of the sheet around the round roller takes place.
  • a plastic pressure-elastic coating guide roller e.g. Neoprene®
  • the rounding of the leading edge and trailing edge regions of the sheet should generally be as good as possible, even for small diameters of the rounded sheet metal pipes of e.g. 30-80 mm.
  • three-roll rotary machines e.g. According to EP-A-0 368 686 or EP-A-0 096 643, the spacing of the two work rolls is kept as low as possible.
  • the plastic coating of the guide roll already produces only a slight flat zone formation, but an improvement is also desirable in this case, in particular in the case of a very small diameter of the round roll in the range of 30 to 80 mm.
  • US-A-3899911 shows a rounding machine with a round roller and two or three pressure-elastic rollers.
  • US-A-2719562 shows a rounding machine with a round roller and a pressure-elastic roller, which is supported by two further rollers.
  • the invention is therefore based on the object to provide an improved two-roll rounding machine.
  • two such additional pressure-elastic rollers are provided, which in particular results in a good rounding when stabilized against bending round roller.
  • one or more support rollers are provided, which in turn support the pressure-elastic rollers, wherein the support rollers are generally not rollers with pressure-elastic coating (and therefore can be referred to as pressure-rigid rollers).
  • At least one guide device which guides the sheet emerging from the first pair of rollers (guide roller, round roller) to the second roller pair (round roller, further roller).
  • the invention is further based on the object to provide a rounding method which does not have the disadvantages mentioned.
  • FIG. 1 shows a roughly schematically a first embodiment of a two-roll rounding machine 1.
  • This machine has a machine frame shown only as a box 2, in which the axes of the rollers and rollers of the machine are mounted, wherein the schematic representation shows the axes perpendicular to the plane of the drawing.
  • the schematic representation shows the axes perpendicular to the plane of the drawing.
  • an electronic control 16 is provided which controls the drive.
  • FIG. 1 shows the guide roller 3 of the round machine with its coating 5 elastically deformable on pressure. This coating is known in such machines plastic coating and will not be explained here. Due to this coating, the roller 3 is referred to below as a pressure-elastic guide roller.
  • the roller is mounted rotatably about its axis 4 in the machine frame 2.
  • the round roller of the rounding machine is referred to, this roller carries no pressure-elastic coating and therefore hereinafter referred to as pressure-tight round roller.
  • Figure 1 shows this roller spaced from the guide roller 3, so that the sheet 20 to be rounded can be inserted between the rollers.
  • FIG. 2 wherein like reference numerals designate like elements in Fig. 1, shows the actual round position in which the circular roller 6 is pressed against the guide roller 3, so that the circular roller 6 creates a depression in the pressure-elastic coating 5 of the guide roller, which Pressing the sheet to be rounded causes the round roller.
  • the sheet is rounded in a conventional manner by the round roller 6 is driven by the drive 17, which results in the rotational movement of the rollers shown in Fig. 2 with arrows, and causes the sheet 20 is drawn between the rolls 3 and 6 and rounded around the roll 6.
  • rollers 8 and 11 with their coatings 10 and 13 and the axes of rotation 9 and 12, which are parallel to the axes of rotation 4 and 7 of the rollers 3 and 5, laterally in the side facing away from the guide roller 3 region of the circular roller. 6 arranged.
  • the rollers 8 and 11 are arranged symmetrically to the plane E, which is spanned by the axes 4 and 7.
  • these rollers provide support for the round roller 6, which is particularly advantageous in the case of round rollers 6 with a small diameter, in particular in the diameter range from 30 to 80 mm is.
  • a particularly good rounding results when the sheet 20 passes twice through said rollers, so after the first rounding operation by means of the roller pairs 3 and 6, or 8 and 6 and 11 and 6 is again passed through the rollers 3 and 6 and then again by the rollers 10 and 6 and 11 and 6. In this way, unrounded or incorrectly rounded sections are reliably avoided.
  • the Controller 16 of the machine is designed to effect two passes through each sheet.
  • the round roller 6 is again spaced from the guide roller 3, as shown in Figure 1, and also the rollers 8 and 11 are spaced from the circular roller 6 to the rounded sheet perpendicular to the plane of the drawing from the rounding machine to be able to remove.
  • the movement of the rollers 8 and 11 may be a translational movement in the drawing down, or a pivoting movement of the axes of rotation 9 and 12 about a pivot axis in each case to the outside, so that the rollers 8 and 11 release the circular roller 6.
  • the rollers 8 and 11 are then returned to the position shown in Figures 1 and 2.
  • rollers 8 and 11 can also be designed by a series of coaxial lying spaced apart arranged rollers.
  • a support roller 14 is further provided, which in turn supports the pressure-elastic rollers 8 and 11.
  • the support roller 14 is rotatably mounted in the example shown about a rotation axis 5 and is a pressure-rigid support roller, thus has no elastic coating.
  • FIG. 3 shows a further embodiment, wherein like reference numerals, as previously used, denote like elements.
  • a pressure-elastic roller 21 is provided with its coating 23 which is rotatably mounted about an axis 22.
  • this can also be several roles that form the roller together.
  • a pressure-rigid support roller 24 is mounted with its axis of rotation 25, which forms a support for the roller 21.
  • FIG. 4 shows a further exemplary embodiment, wherein the same reference numerals also refer to the same elements here. It is here in turn an embodiment with two pressure-elastic rollers 8 and 11 shown, in which case further a guide 30 is shown, which receives the emerging between the rollers 3 and 6 rounded sheet with its guide surface 31 and performs, such that the rounded sheet in suitable position between the rollers 8 and 6 is introduced.
  • the guide 30 can be prevented with certainty an upsetting or buckling of the sheet 20 at the first contact with the roller 8. In this case, it is generally sufficient to pass through the plate once through the roller pairs 3 and 6, or 8 and 6 and 11 and 6.
  • FIG. 5 shows a further exemplary embodiment, in which the same reference numbers again designate the same elements.
  • This embodiment differs from that of Figures 1 and 2, or 4, characterized in that in addition to the rollers 8 and 13 common support roller 14 additionally each have their own support roller 32 for the roller 8, and 33 for the roller 11, respectively is.
  • the rollers 32 and 33 are each about axes 34, and 35, rotatable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Control And Safety Of Cranes (AREA)
  • Replacement Of Web Rolls (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP01122326A 2000-10-12 2001-09-19 Zweiwalzen-Rundmaschine sowie Verfahren zum Runden von Blechen Expired - Lifetime EP1197272B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH20092000 2000-10-12
CH20092000 2000-10-12

Publications (3)

Publication Number Publication Date
EP1197272A2 EP1197272A2 (de) 2002-04-17
EP1197272A3 EP1197272A3 (de) 2004-01-14
EP1197272B1 true EP1197272B1 (de) 2006-08-02

Family

ID=4567110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122326A Expired - Lifetime EP1197272B1 (de) 2000-10-12 2001-09-19 Zweiwalzen-Rundmaschine sowie Verfahren zum Runden von Blechen

Country Status (5)

Country Link
US (1) US6631631B2 (es)
EP (1) EP1197272B1 (es)
AT (1) ATE334760T1 (es)
DE (1) DE50110594D1 (es)
ES (1) ES2269264T3 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7065999B2 (en) * 2001-08-03 2006-06-27 Nippon Steel Corporation Bending roll apparatus
DE102006027046B3 (de) * 2006-06-10 2007-11-22 Lemuth Gmbh Verfahren und Vorrichtung zum Herstellen eines Rohres
WO2008134295A1 (en) * 2007-04-27 2008-11-06 Tyco Healthcare Group Lp Apparatus and method for curving surgical needles
DE112008003603A5 (de) 2007-11-05 2010-10-14 Bergrohr Gmbh Siegen Biegemaschine für Blechtafeln
PT2110191E (pt) * 2008-04-18 2011-05-26 Soudronic Ag Elemento de encurvamento preliminar de um aparelho de encurvamento
JP6295175B2 (ja) * 2014-10-06 2018-03-14 株式会社日立製作所 ロール成形ロール及びこれを用いたロール成形方法
CN105013894B (zh) * 2015-08-06 2017-04-26 上海鼎凡电工机械股份有限公司 一种用于自动卷圆机的卷圆机构
WO2018177876A1 (de) 2017-03-29 2018-10-04 Can Man Ag Verfahren zum runden von blechzuschnitten für gebinde und eine längsnaht-schweissmaschine für die herstellung von dosenzargen mit einer rundstation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1930562A (en) * 1932-08-11 1933-10-17 Bliss E W Co Method and apparatus for forming smoothly rounded can bodies
US2719562A (en) * 1950-07-15 1955-10-04 Raymond E Beegle Apparatus for forming metal channels and tubes
US3899911A (en) * 1974-03-27 1975-08-19 Anvar Sheetmetal rolling machine
DE3539900A1 (de) * 1985-11-11 1987-05-14 Schloemann Siemag Ag Vorrichtung zur steuerung der anhebe- und andruckbewegungen der bandandruckrollen von walzbandwarmhaspeln
US4964587A (en) * 1986-12-25 1990-10-23 Mitsubishi Jukogyo Kabushiki Kaisha Coiler
DE4236060A1 (de) * 1992-10-26 1994-04-28 Kleiner Matthias Priv Doz Dr I Vorrichtung und numerische Steuerung zum Zweiwalzen-Rundbiegen auf Gesenkbiegepressen
US5361618A (en) * 1993-04-01 1994-11-08 Italimpianti Of America, Inc. Method and apparatus for adjusting bending rolls

Also Published As

Publication number Publication date
US6631631B2 (en) 2003-10-14
EP1197272A3 (de) 2004-01-14
ATE334760T1 (de) 2006-08-15
ES2269264T3 (es) 2007-04-01
US20020043088A1 (en) 2002-04-18
DE50110594D1 (de) 2006-09-14
EP1197272A2 (de) 2002-04-17

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