EP1804981B1 - Blechbiegemaschine und produktionsanlage mit derartiger maschine - Google Patents

Blechbiegemaschine und produktionsanlage mit derartiger maschine Download PDF

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Publication number
EP1804981B1
EP1804981B1 EP05812400A EP05812400A EP1804981B1 EP 1804981 B1 EP1804981 B1 EP 1804981B1 EP 05812400 A EP05812400 A EP 05812400A EP 05812400 A EP05812400 A EP 05812400A EP 1804981 B1 EP1804981 B1 EP 1804981B1
Authority
EP
European Patent Office
Prior art keywords
roller
bending
machine
compensating
rollers
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.)
Not-in-force
Application number
EP05812400A
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English (en)
French (fr)
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EP1804981A1 (de
Inventor
Michel Gravier
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.)
Conception Machines Faveyrial
Original Assignee
Jammes Industrie
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Publication date
Application filed by Jammes Industrie filed Critical Jammes Industrie
Publication of EP1804981A1 publication Critical patent/EP1804981A1/de
Application granted granted Critical
Publication of EP1804981B1 publication Critical patent/EP1804981B1/de
Not-in-force legal-status Critical Current
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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
    • 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

Definitions

  • the invention relates to a sheet-bending machine and, more particularly, to a roll-type machine according to the preamble of claim 1.
  • the invention also relates to a machine for manufacturing tubes or rolls by bending sheet metal, this installation incorporating a bending machine.
  • the term "rolling machine” designates all the machines making it possible to produce a tube or a shell from a metal plate of small thickness, in particular of a sheet.
  • the production of tubes or ferrules from sheets is carried out by bending, that is to say by curving the sheet according to a radius of curvature corresponding to that of the tube or ferrule.
  • the invention relates to rollers for making tubes or ferrules with the smallest possible diameter as a function of the length of the tube and the thickness of its wall; for example tubes 60 mm in diameter for a length of about 1 meter and a thickness of 0.5 mm.
  • rollers comprising a bending roller, driven in rotation and around which the sheet is wound, and two support rollers, parallel to the bending roller, which allow to provide an adjustable passage between the different rollers, so as to guide and give the desired radius of curvature to the sheet.
  • the outer diameter of the bending roller governs the minimum diameter of the tube or shell that can be obtained in one revolution with the rolling machine.
  • the internal diameter of the tube or ferrule thus formed varies in particular as a function of the elastic limit of the metal or of the metal alloy of the sheet: the higher this limit, the greater the final diameter of the tube, the sheet metal tending to return to its original form.
  • the minimum diameter of the tube is about 1.2 times the diameter of the bending roll.
  • the minimum diameter of the tube is about 5 times the diameter of the bending roll.
  • the diameter of the bending roller must be 1.4 times smaller, that is to say close to 55 mm .
  • a bending roller of this diameter a length close to one meter, does not remain rectilinear, but tends to have a large arrow.
  • the support rollers tend to have an arrow. This deflection problem can also be accompanied, depending on the stresses exerted by the sheet, a start twisting of the bending roller.
  • FR-B-2 750 061 discloses a solution for resolving the deflection of the support rollers by the use of a plurality of aligned low-length support rollers, or, alternatively, support rollers of length close to that of the bending roll which rely on several small rolls.
  • EP-A-0477751 describes an upper roll and a lower roll, the latter being flanked by two parallel rollers. Adjustable rollers carried by beams and movable in sliders, come to adjustable support on the rollers located in the lower part to compensate their arrow.
  • the invention more particularly intends to remedy by proposing a rolling machine adapted to the production of tubes of high length / diameter ratio and cylindrical.
  • the subject of the invention is a sheet-type bending machine, of roll type, according to claim 1.
  • Such a roller makes it possible to compensate, in a coordinated manner, the arrows of the different rollers and thus to form cylindrical tubes.
  • the invention also relates to a line for manufacturing tubes or cylinders by bending sheet metal comprising at least one sheet bending machine made according to one of the previous embodiments.
  • the machine for bending the sheets 1, called the rolling machine, represented in FIG. figure 1 comprises a main body 2 generally configured in H.
  • the spacing between the posts 3, 4 of the H is adapted to the final length of the tube T that is desired to achieve.
  • the crossbar 5 of the body 2 of the machine supports a cross-member 6 fixed held generally horizontal.
  • This crosspiece 6 is provided on its upper face with three notches 7, inclined at about 45 ° with respect to a longitudinal axis A of the crossbar 5.
  • the cross member 6 is movable longitudinally, by a hydraulic device 60, in a direction parallel to the axis A.
  • the crosspiece 6, the shims 8 by sliding on the slope of the notches 7 on which they rest, raise or lower the cross member 9, in a direction generally perpendicular to the axis A and parallel to the plane of the figure 2 .
  • this device one transforms a horizontal movement in vertical movement.
  • the cross member 9 is equipped on its upper face with a longitudinal groove. For clarity, this groove is shown in phantom at the figure 6 .
  • Members 11 of means for compensating the deflection of the support rollers are partially engaged in this groove 10 and are movable therein.
  • Each of the members 11 or games comprises a main body 12 generally configured U flat bottom.
  • the inner face 13 of the bottom is inclined.
  • a sloped shim, or "wedge" 14 whose inclined face has a slope substantially identical to that of the face 13, is positioned on the bottom of the main body 12.
  • a frame 15 is placed on the upper face of the shim 14.
  • frame supports three ball bearings 16 juxtaposed and whose axes of rotation X 16 are parallel and oriented in a direction generally perpendicular to the plane of the figure 4 .
  • the ball bearings 16 thus form a raceway generally parallel to the slope of the bottom 13.
  • a setting device 17 comprising a micrometer screw 17A and equipped with a counter 17B is mounted on a wing of the body 12.
  • the device 17 is not shown in FIG. figure 4 for the clarity of the drawing.
  • the end of the screw 17A is connected to an edge of the sloping wedge 14.
  • This displacement F 1 of the shim 14 is on the inclined face of the bottom 13, which has the effect of raising or lowering the frame 15 which is placed on the upper face of the wedge 14.
  • This vertical movement is represented by the double arrow F 2 at the figure 4 .
  • a relief 18 is projecting on the outer face of the bottom 13A. It is of a form adapted to fit, to play reduced, and to slide in the groove 10 of the cross member 9. The spacing of the members 11 is adjusted so that, when in position in the groove 10, the ball bearings 16 are evenly spaced, parallel to the axis A.
  • Two cylindrical rods 19 of circular section, solid or hollow, preferably made of a metal or an alloy of stainless metals are disposed on the raceway formed by the ball bearings 16. These two rods constitute the support rollers 19 of the machine. They are mounted free in rotation while being held by their ends in housings formed in vertical uprights secured to the cross member 9.
  • the support rollers 19 are arranged so that, at each member 11, each roller 19 is supported by two ball bearings 16 juxtaposed. In this configuration, the longitudinal axes X 19 of the rollers 19 and the longitudinal axes X 16 of the ball bearings 16 are generally parallel to the axis A of the crosspiece 6.
  • the rollers 19 and the ball bearings 16 are driven by compared to others in rotation by friction.
  • the upper part of the main body 2 of the machine receives the bending roller 20 around which winds the sheet when bent.
  • the X axis 20 of the roll 20 is disposed in a direction generally parallel to the axis A
  • the roll 20 is kept as straight as possible by means of compensation of its arrow.
  • These means of compensation of the arrow comprise an arm 21 of cylindrical outer shape, solid, circular section, made of a rigid material.
  • This arm 21 has a high elastic inertia that is to say that it remains generally rectilinear or, at least, it has a low deflection when it is subjected to stress, in particular a bending force.
  • its outer diameter is generally between three and six times that of the bending roller 20.
  • This arm 21 is provided, over substantially its entire length, with a longitudinal groove 22.
  • the groove 22 is flat-bottomed.
  • the width of this groove 22 is substantially greater than the diameter of the bending roller 20.
  • This groove 22 is adapted to receive organs providing a bearing contact between the roller 20 and the arm 21.
  • rollers 23A are mounted on a cradle 23B.
  • This cradle 23B has a generally U-shaped flat bottom.
  • the dimensions and the external shape of the cradle 23B are adapted to those of the groove 22.
  • the shapes and internal dimensions of the cradle 23B are adapted to marry, without contact, the circumference of the roll 20.
  • the figure 5 is a section in two different planes of the cradle 23B passing, on the one hand in the median plane of the cradle 23B (left part of the figure) and, on the other hand, in the median plane of a support axis 26 of a roller 23A (right part of the figure).
  • the rollers 23A are mounted, in pairs, on each cradle 23B.
  • a screw 25 passes through the bottom of the cradle 23B and fixes the latter at the bottom of the groove 22.
  • the rollers 23A are each free to rotate about an axis 26 maintained in two bearings 23C formed in the cradle 23B.
  • the axes 26 are oriented in a direction parallel to a longitudinal axis X 22 of the groove 22.
  • the groove 22 formed in the arm 21 is thus equipped with at least three subassemblies 23 each carrying two rollers 23A.
  • the inner dimensions of each cradle 23B are adapted to partially cap with a minimum clearance, the roller 20.
  • the rollers 23A are mounted on each cradle 23B so as to come into permanent contact with the roller 20, while allowing the free rotation of the roller 20 and rollers 23A resting on the roll 20.
  • each cradle 23B located in the groove 22 This is maintained in each cradle 23B located in the groove 22 by the ends 200, 201 of the roller 20.
  • An end 200 is connected to a rotary drive member, for example an electric motor M or hydraulic.
  • the other end 201 is provided with a housing 202 in which engages a relief or rod 203 attached to one end of the arm 21.
  • the dimensions of the housing 202 and the rod 203 are adapted to ensure the free rotation of the roll 20, which makes it possible, when the roll 20 is in rotation and put under stress, to preserve as much as possible its straightness.
  • the assembly formed by the roller 20 and the arm 21, is disposed in the upper part of the machine 1, between the free ends of the uprights 3 and 4 of the main body 2.
  • the roller 20 is connected to the motor M driving in rotation through an orifice in the heel 21A of the arm 21.
  • the arm 21 is fixed to the main body, for example by bolting one of its ends.
  • the other end of the sleeve 21 is provided with a frustoconical mandrel 27.
  • This mandrel is housed, when the roller 20 is rotating, in a movable arm 28.
  • a pivoting movement of the arm 28 about an axis 28A fixed on the body 2 makes it possible to disengage the mandrel 27 and to release the end of the arm 21. This movement is represented by the arrow F 3 at the figure 2 .
  • the assembly formed of the roller 20 and the arm 21 is fixedly positioned above the two support rollers 19. These are adjusted in height, so that the space between the rollers 20 and 19 corresponds globally to the thickness of the sheet to be bent.
  • One side of the machine, in the upper part, is equipped with several parallel tubes 29, arranged in a direction generally perpendicular to the axis A. These tubes 29 are interconnected by cross members 30 and thus form a plane, or a table 31, feeding machine. The dimensions of this feed table are adapted to the dimensions of the sheets 32. to bend.
  • the bars 29 are also provided with not shown, adjustable cleats, for maintaining a sheet 32 on the feed plane 31 so that the longitudinal axis of the plate 32 is substantially parallel to the axis A.
  • the bars forming the feed plane 31 are fixed on the crosspiece 9 equipped with support rollers 19.
  • the height adjustment of the space between the bending roller 20 and the support rollers 19 as a function of the thickness of the sheet is accompanied by a concomitant movement of the feed plane 31
  • a sheet 32 presented on the feed plane 31 is always, by one of its edges, facing the space provided between the roll 20 and at least one of the rollers 19.
  • the tube T is brought to a welding station which ensures the welding of its two edges.
  • tubes T 60 mm in diameter and 1 meter long or 75 mm in length are produced. diameter for 1.20 m long.
  • the bending roller 20 is held at both ends and the stress exerted by the sheet 32 is directed from bottom to top at the figure 4 .
  • the roller 20 tends to take an arrow whose concavity is open towards The base of the machine 1.
  • the support rollers 19 are made to take a reverse arrow, that is to say an arrow of generally equivalent radius, the concavity of which is directed towards the top of the machine 1. Arrows are controlled and compensated in an adjustable manner by the various means described above.
  • the bending roller 20 is held by the rollers 23A supported by the arm 21 whose outer diameter and mass provide sufficient inertia so that it bends little under the forces incurred during the bending of the sheet 32.
  • the roller 20 thus takes an arrow, called residual, corresponding to the arrow not compensated by the arm 21.
  • the support rollers 19 are supported by the ball bearings 16. With the adjusting device 17, a free support of the bearings 16 is obtained on the rollers 19. This support is distributed locally over the length of the rollers 19 This support makes it possible to give the rollers 19 an inverse arrow, corresponding to the residual arrow of the roll 20, so as to keep the space between the rollers 19 and 20 constant throughout their respective lengths.
  • rollers approximately 1.20 meters long and 20 mm in diameter twelve compensation members 11 are regularly distributed under the rollers 19.
  • twelve subassemblies 23B are also regularly distributed.
  • the subsets 23B and the members 11 are arranged in staggered rows. In this way, during their rotation, the various rollers 19 and 20 are perfectly maintained over most of their respective lengths.
  • an arm 21 partially covering the bending roller 20 makes it possible to reduce the risk of pinching, of driving an Member or a garment of a user by the machine 1.
  • the arm 21 also participates in the safe use of the machine.
  • the arm 21 and the roller 20 are easily dismountable, for example, to be replaced by another sleeve / roller assembly of different diameter.
  • the adjustment of the arrow compensation means of the support rollers 19 is different from that described. It can be an electrical device, hydraulic or threaded rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Inorganic Insulating Materials (AREA)
  • Basic Packing Technique (AREA)

Claims (10)

  1. Maschine vom Typ der Rundbiegemaschine zum Biegen von Blechen, welche umfasst: einerseits eine als Biegewalze bezeichnete Walze (20), welche in Rotation versetzt wird und um welche sich das Blech (32) wickelt, und andererseits mindestens zwei Stützwalzen (19), die so ausgelegt sind, dass sie stützend ein Blech (32) im Verlaufe des Biegens um die genannte Biegewalze (20) aufnehmen, wobei die genannten Stützwalzen (19) frei drehend auf eine höhenverstellbaren Stützvorrichtung (11) dergestalt montiert sind, dass das Spiel zwischen der genannten Walze (20) und den genannten Stützwalzen (19) an die Stärke des genannten Bleches (32) angepasst wird, und wobei die genannte Biegewalze (20) mit mindestens einem Satz von Mitteln (21, 23) zur zumindest teilweisen Kompensierung ihrer Durchbiegung verbunden ist und die genannten Stützwalzen (19) mit mindestens einem Satz (11) von Mitteln (12 - 16) zur Kompensierung ihrer Durchbiegung verbunden sind und der genannte Satz (11) je nach der restlichen Durchbiegung der genannten Biegewalze (20) einstellbar ist, dadurch gekennzeichnet, dass der genannte Satz von Mitteln (21, 23) zur Kompensation der Durchbiegung der genannten Biegewalze (20) einen Arm (21) umfasst, welcher ausgestattet ist mit einem Sitz (22), in welchem zum Teil die genannte Walze (20) sowie Mittel (23A, 23B, 25, 26) zur Beibehaltung der genannten Walze (20) in dem genannten Sitz (22) Aufnahme finden.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, dass der genannte Sitz eine Rille (22) ist, über deren Länge mindestens drei Sätze (23) von Mitteln (23A, 23B, 25, 26) verteilt sind, welche die genannte Walze (20), wenn diese sich in Drehung befindet, bei einer minimalen Durchbiegung halten.
  3. Maschine nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass jeder der genannten Sätze (23) von Mitteln zur Beibehaltung der minimalen Durchbiegung mindestens zwei Laufrollen (23A) umfasst, welche auf die genannte Walze (20) in einer Richtung stützend wirken, welche insgesamt rechtwinklig zur Hauptachse (X22) des genannten Sitzes (22) verläuft.
  4. Maschine nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass sie mindestens drei Sätze (11) von Mitteln (12-16) zur Kompensation der Durchbiegung der Stützwalzen (19) umfasst.
  5. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass jeder der genannten Sätze (11) von Mitteln zur Kompensation mindestens drei Kugellager (16) umfasst, die auf einer Stützvorrichtung (15), die in ihrer Höhe beispielsweise mittels eines abgeschrägten Passstückes (14) verstellbar ist, nebeneinander angeordnet und befestigt sind.
  6. Maschine nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass jeder der genannten Sätze (11) von Kompensationsmitteln (12-16) mit Hilfe einer Mikrometerschraube (17A) in seiner Höhe individuell einstellbar ist.
  7. Maschine nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass alle Sätze (11) von Kompensationsmitteln gleitend (10, 18) auf einen einzelnen Sockel (9) montiert sind und selbiger mit Hilfe von zwei abgeschrägten Passstücken (8) in der Höhe einstellbar ist.
  8. Maschine nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die genannten Sätze (23) von Mitteln (23A, 23B, 25, 26), die zur Beibehaltung der minimalen Durchbiegung der Biegewalze (20) dienen, in Bezug auf die Sätze (11) von Kompensationsmitteln (12 - 16) der Stützwalzen (19), deutlich versetzt angeordnet sind.
  9. Maschine nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die genannte Biegewalze (20) durch einen Arm (21) gestützt wird, mit welchem sie auf abnehmbare Weise an der genannten Maschine (1) montiert ist.
  10. Fertigungslinie von Rohren (T) oder Zylindern durch das Biegen von Blechen (32), welche mindestens eine Maschine zum Biegen (1) von Blechen (32) umfasst, die gemäß einem der vorangehenden Ansprüche ausgeführt ist.
EP05812400A 2004-10-25 2005-10-24 Blechbiegemaschine und produktionsanlage mit derartiger maschine Not-in-force EP1804981B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0411359A FR2876927B1 (fr) 2004-10-25 2004-10-25 Machine a cintrer les toles et ligne de fabrication incorporant une telle machine
PCT/FR2005/002649 WO2006045942A1 (fr) 2004-10-25 2005-10-24 Machine a cintrer les toles et ligne de fabrication incorporant une telle machine

Publications (2)

Publication Number Publication Date
EP1804981A1 EP1804981A1 (de) 2007-07-11
EP1804981B1 true EP1804981B1 (de) 2008-05-28

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Application Number Title Priority Date Filing Date
EP05812400A Not-in-force EP1804981B1 (de) 2004-10-25 2005-10-24 Blechbiegemaschine und produktionsanlage mit derartiger maschine

Country Status (9)

Country Link
US (1) US8061172B2 (de)
EP (1) EP1804981B1 (de)
JP (1) JP2008517767A (de)
CN (1) CN101048241A (de)
AT (1) ATE396798T1 (de)
DE (1) DE602005007261D1 (de)
ES (1) ES2319217T3 (de)
FR (1) FR2876927B1 (de)
WO (1) WO2006045942A1 (de)

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
KR101170456B1 (ko) * 2008-03-26 2012-08-07 샤프 가부시키가이샤 액정 표시 패널의 이물질 검출 방법 및 이물질 검출 장치
JP4439573B2 (ja) * 2008-07-29 2010-03-24 株式会社富士機械工作所 円筒成形装置
CN101439371B (zh) * 2008-12-12 2010-06-23 长治钢铁（集团）锻压机械制造有限公司 上辊挠度补偿机构
AT509857B1 (de) 2010-08-05 2011-12-15 Trumpf Maschinen Austria Gmbh Biegepresse mit einer werkteil-positionier- vorrichtung sowie ein verfahren zum betrieb
CN102319777B (zh) * 2011-09-20 2013-04-24 泰安华鲁锻压机床有限公司 一种船用卷板机挠度的自动补偿装置
CN102641919A (zh) * 2012-05-07 2012-08-22 南车戚墅堰机车有限公司 卷圆用筒体托架
CN104678619A (zh) * 2015-03-23 2015-06-03 合肥鑫晟光电科技有限公司 一种滚压机及其滚压方法
JP2020127963A (ja) * 2019-02-12 2020-08-27 株式会社富士機械工作所 非円形管体の製造方法及び管体成形装置
EP4271528A1 (de) * 2020-12-30 2023-11-08 Faccin S.p.A. Biegemaschine und verfahren zum biegen eines blechs mit dieser biegemaschine

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Publication number Priority date Publication date Assignee Title
US1614425A (en) * 1926-05-22 1927-01-11 American Brass Co Rolling mill
FR1555881A (de) * 1967-12-22 1969-01-31
CH688437A5 (de) * 1990-04-12 1997-09-30 Haeusler Ag Chr Zum Zylindrisch-Biegen einer Platte dienende Umformmaschine.
IT223460Z2 (it) * 1990-09-28 1995-07-19 Davi Spa Calandra curvatrice a 4 rulli sagomatori con supporti antiflessione longitudinali e seie di rullini di contrasto.
AU1299897A (en) * 1996-01-30 1997-08-22 Chr. Haeusler Ag Sheet-metal bending machine

Also Published As

Publication number Publication date
CN101048241A (zh) 2007-10-03
US8061172B2 (en) 2011-11-22
WO2006045942A1 (fr) 2006-05-04
FR2876927A1 (fr) 2006-04-28
DE602005007261D1 (de) 2008-07-10
JP2008517767A (ja) 2008-05-29
US20080047316A1 (en) 2008-02-28
ES2319217T3 (es) 2009-05-05
EP1804981A1 (de) 2007-07-11
FR2876927B1 (fr) 2008-05-16
ATE396798T1 (de) 2008-06-15

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