EP0178236B1 - Vorrichtung zum Herstellen von gewellten Rohren für Wärmetauscher und ähnliche Anwendungen - Google Patents

Vorrichtung zum Herstellen von gewellten Rohren für Wärmetauscher und ähnliche Anwendungen Download PDF

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Publication number
EP0178236B1
EP0178236B1 EP85420173A EP85420173A EP0178236B1 EP 0178236 B1 EP0178236 B1 EP 0178236B1 EP 85420173 A EP85420173 A EP 85420173A EP 85420173 A EP85420173 A EP 85420173A EP 0178236 B1 EP0178236 B1 EP 0178236B1
Authority
EP
European Patent Office
Prior art keywords
wheel
tube
bulging
head
cutting
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
Application number
EP85420173A
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English (en)
French (fr)
Other versions
EP0178236A1 (de
Inventor
Robert Bridier
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.)
Compagnie Industrielle dApplications Thermiques SA CIAT
Original Assignee
Compagnie Industrielle dApplications Thermiques SA CIAT
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 Compagnie Industrielle dApplications Thermiques SA CIAT filed Critical Compagnie Industrielle dApplications Thermiques SA CIAT
Priority to AT85420173T priority Critical patent/ATE33567T1/de
Publication of EP0178236A1 publication Critical patent/EP0178236A1/de
Application granted granted Critical
Publication of EP0178236B1 publication Critical patent/EP0178236B1/de
Expired 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
    • B21D15/00—Corrugating tubes
    • B21D15/04—Corrugating tubes transversely, e.g. helically

Definitions

  • tubes of the type have been proposed having, between two connecting sleeves provided smooth, a series of deformations with a helical profile, obtained by pushing back so as to affect the inner wall as the outer wall.
  • Studies and measurements carried out on this type of tube have effectively demonstrated that the pressure losses and turbulence caused by "corrugations" on the fluid circuit very significantly improved the heat exchange coefficient.
  • the object of the invention is to make it possible to obtain “corrugated” tubes of any desired length, having at their ends (and even at one or more points along their length) smooth parts capable of facilitating connection operations and fixing. in place.
  • the fixed frame of the machine shown in fig. 1 to 6 is formed by a sole 1 secured to two vertical flanges 2 drilled horizontally to allow, by means of the interposition of bearings 3, the mounting of a rotating sleeve 4.
  • this sleeve 4 carries a drive pulley 5 which a belt 6 connects to any motor, not shown, advantageously provided at variable speed.
  • a fixed sheath 7 Inside the sleeve 4 is axially engaged a fixed sheath 7 whose end disposed in line with the pulley 6 is supported by a foot 8 made integral with the sole 1; it will be observed that the outlet of this sheath 7 is oriented along the axis of a device 9, of the roller type, intended to straighten the tube to be worked and to animate it with a continuous longitudinal movement, itself advantageously provided with adjustable speed.
  • the flanges 2 of the fixed frame 1-2 support a horizontal console 10 on the free edge of which are articulated in 11 two pivoting arms 12 whose lower ends pass through the sole 1 through an opening 1 a for s hitch to a yoke 1 2a.
  • the latter is fixed at the end of the movable member 13 of a pneumatic or hydraulic cylinder 14, of the double-acting type. It will be understood that, depending on whether the jack 14 is actuated by extension or by contraction, it controls the arms 12 to cause them to affect one or the other of the two oblique orientations indicated at 12 'and 12 "in FIG. 1 .
  • the end of the sleeve 4 opposite to that which carries the pulley 5 is made integral, for example by means of threaded tie rods not shown, with a rotating head 15 disposed immediately in front of a bearing 16 interposed between the fixed sleeve 7 and said sleeve 4.
  • This head 15 is pierced with two radial bores (referenced 15a in fig. 4), oriented opposite one another and inside each of which is housed a guide cylindrical 17; the upper part of each guide 17 is provided with an overflowing flange 17a fixed to the rotating head 15 by means of screws 18.
  • each guide 17 is established at a polygonal profile (rectangular in the envisaged exemplary embodiment), and inside this opening 17b is slidably engaged a die 19.
  • the latter is profiled in the manner of a yoke open downwards, in order to carry a horizontal axis 20 forming a support for a wheel referenced 21 for one of the two dice 19, 22 for the other.
  • Each die 19 is provided upwards with an overflowing flange 19a to which are fixed vertical studs 23 (only one of which has been shown in FIGS.
  • each stud 23 is engaged inside a blind bore 1 7c of the corresponding guide 17, a spring 24 tending to elastically push the collar 1 9a and the die 19 upwards.
  • the wheel referenced 21 (arranged in the upper part of FIGS. 2 and 3) is profiled to repel the metal, and it will hereinafter be referred to as the "pushing back" wheel, while the wheel 22 turned downwards in the above figures is profiled to cut the tube. It will also be observed that if the screws 18 which secure the guide 17 associated with the die 19 fitted with the cutting wheel 22 pass through the holes in the flange 17a practically without play before being screwed into the threads of the head 15, it is not the same for those which retain the opposite guide forming a support for the "pushing" mold 21; as illustrated in fig.
  • these screws 18 are introduced into slots 17d with a profile in an arc of a circle concentric with the axis of the opening 17b, so as to allow the orientation of the envisaged guide 17 and of the knob 21 to be adjusted relative to the axis of the head 15.
  • each die 19 is secured to a pusher or axial finger 19b with a profile semi-spherical exterior, suitable for being actuated by a cam formed by the assembly of two rings 25 and 26 which surround the rotating head 15 to which they are linked by the two fingers 19b.
  • the outer wall of each of the two rings 25 and 26 is hollowed out with two longitudinal grooves 25a and 25b, respectively 26a and 26b, diametrically opposite to receive the two fingers 19b, but while the bottom of the groove 25a, 26a is oriented parallel to the axis of the cam 25-26, that of the groove 25b-26b is oriented obliquely to form an actuating ramp for the corresponding die 19.
  • the arrangement of the four grooves or ramps indicated above is reversed, in the sense that once the rings are mounted in place, the ramps 25b and 26b have opposite obliquities.
  • One of the rings 25 or 26 (the ring 26 in the embodiment considered) is hollowed out on its periphery with an annular depression 26c intended to form a track for two opposite rollers 27 (fig. 1 and 2) carried by the pivoting arms 12 and it is understood that the control of the jack 14 ensures the axial displacement of the cam 25-26 despite the rotational movement imparted to it by the head 15.
  • the cam 25-26 When the machine is put into operation, the cam 25-26 is in the middle position illustrated in fig. 1 and 3, in that the fingers 1 9b of the two opposite dice 19 are engaged in the straight bottom grooves 25a and 26a.
  • the speed of advance imparted to the smooth tube 28 by the device 9 was adjusted as a function of the speed of rotation of the sleeve 4 and of the angle of obliquity conferred on the "pushing" wheel 21.
  • the smooth tube 28 penetrates axially into the fixed sheath 7 and passes through an internal end piece 29 (FIG. 3) mounted at the downstream end of the latter.
  • the end of this tube passes in line with the knobs 21 and 22 to be introduced into an outlet end piece 30 carried by an upright 31 (fig. 1) secured to the sole 1.
  • the operator controls the jack 14 to the extension, in order to bring the pivoting arms 12 to the orientation 12 'of fig. 1; this change in orientation has the effect of moving the cam 25-26 which therefore affects the position illustrated in FIG. 5.
  • the machine is then ready to make a new length of "corrugated" tube.
  • Fig. 7 to 9 schematically illustrate the general arrangement of a "corrugation" machine at a very high production rate, capable of printing on the tube three helical threads oriented at 120 ° relative to each other.
  • This machine comprises a toothed wheel 32 connected by a chain 33 to an adjustable speed motor (not shown) and keyed onto a horizontal sleeve 34 suitably supported for rotation by the general frame. Opposite the straightening and advancing device (not visible in fig.
  • this sleeve 34 is secured to a rotating head 35 which penetrates inside an actuating cam 36 connected by rods longitudinal 37a to a rotating disc 37 linked axially to a transverse flange 38; the latter, provided with lateral guides 39 which immobilize it angularly, is fixed to the movable member 40 of a control jack 41, so that the contraction or extension thereof modifies the position of the cam 36 relative to the rotating head 35, as in the case of the embodiment according to FIG. 1 to 6.
  • the head 35 is hollowed out with three radial bores 35a (FIG. 8) oriented at 120 ° from one another and inside each of which is mounted a cylindrical die 42 forming a support for a "pushing back" knob 43.
  • each die 42 is assembled by a screw 44 to an actuating finger 45, the outer part of which is established in a dovetail profile in order to cooperate with a groove with corresponding profile 46a formed in one, referenced 46, of the parts which constitute the cam 36.
  • the bottom of the groove 46a is oriented obliquely to act radially in the manner of a ramp on the finger 45 which is engaged.
  • two cylindrical bores 35b (fig. 9) diametrically opposite one another have been provided in this head.
  • a die 47 whose end facing the axis of the head 35 is equipped with a cutting wheel 48, while the opposite end with a dovetail profile is engaged in a groove 46b made in the part 46 of the head 35, the bottom of said groove being oriented obliquely, parallel to the bottom of each groove 46a, as visible in FIG. 7.
  • a support 49 rigidly fixed to the part 35.
  • the smooth tube 28 (FIG. 7) is moved axially continuously so as to penetrate into a fixed sleeve 50 which is disposed inside the flange 38 and the rotating sleeve 34, and penetrates into the head 35, driven in a continuous rotational movement as a result of its connection with the aforementioned sleeve.
  • the longitudinal displacement of the cam 36 (from left to right in FIG. 7), under the effect of the command to extend the jack 40-41, causes the three fingers 45 to be actuated simultaneously and the corresponding radial displacement of the dice 42 which carry the wheels 43, so that the latter push back the wall of the tube 28 which is thus "corrugated".

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (2)

1. Vorrichtung zum Herstellen von gewellten Rohren für Wärmetauscher und dergleichen Anwendung mit mindestens einem radial auf einem Drehkopf beweglich angeordneten Drückrad (21), das derart gesteuert wird, dass es sich mit Kraft gegen die Wand eines glatten, zu wellenden Rohres andrückt, wobei das Rohr in bezug auf den Winkel festgehalten wird, während es in Richtung seiner Achse in bezug zu dem Kopf (15) verschoben wird, dadurch gekennzeichnet, dass zusätzlich mindestens ein Trennrad (22, 48) vorgesehen ist, das zu dem Drückrad (21, 43) in der Weise angeordnet ist, dass die radiale Betätigung des Drückrades in eine zur Richtung des Drückvorganges umgekehrte Richtung gleichzeitig die Instellungbringung des Trennrades (22, 48) in seine Arbeitsstellung und durch Kraftaufbringung einen senkrechten Schnitt durch das Rohr (28) am Ende des Drückvorganges sicherstellt.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Drückrad (21, 43) und das Trennrad (22, 48) von Formsteinen (19, 47) getragen werden, die sich unter Wirkung von zwei schrägen Rampen (25b, 26b; 46a, 46b) radial in dem Drehkopf (15, 35) verschieben, wobei die Rampen in der inneren Wand eines den Kopf umgebenden Betätigungsnockens (25-26, 36) parallel zueinander angeordnet sind und axial zueinander versetzt sind, um selektiv auf den einen oder den anderen der beiden Formsteine durch die Verschiebung des Nockens zu wirken.
EP85420173A 1984-10-02 1985-10-02 Vorrichtung zum Herstellen von gewellten Rohren für Wärmetauscher und ähnliche Anwendungen Expired EP0178236B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85420173T ATE33567T1 (de) 1984-10-02 1985-10-02 Vorrichtung zum herstellen von gewellten rohren fuer waermetauscher und aehnliche anwendungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8415263A FR2570968B1 (fr) 1984-10-02 1984-10-02 Machine pour la fabrication de tubes comportant au moins une deformation a profil helicoidal pour echangeurs de temperature et applications analogues.
FR8415263 1984-10-02

Publications (2)

Publication Number Publication Date
EP0178236A1 EP0178236A1 (de) 1986-04-16
EP0178236B1 true EP0178236B1 (de) 1988-04-20

Family

ID=9308350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85420173A Expired EP0178236B1 (de) 1984-10-02 1985-10-02 Vorrichtung zum Herstellen von gewellten Rohren für Wärmetauscher und ähnliche Anwendungen

Country Status (5)

Country Link
US (1) US4624122A (de)
EP (1) EP0178236B1 (de)
AT (1) ATE33567T1 (de)
DE (1) DE3562191D1 (de)
FR (1) FR2570968B1 (de)

Families Citing this family (15)

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Publication number Priority date Publication date Assignee Title
US5304006A (en) * 1989-02-08 1994-04-19 Ide Russell D Self positioning beam mounted bearing and bearing and shaft assembly including the same
FR2722440B1 (fr) * 1994-07-13 1996-09-06 Clavel Sa Machine et procede de coupe de tuyaux flexibles
US6840074B2 (en) * 1999-04-21 2005-01-11 Tojo Kamino Pipe and heat exchanger, pipe manufacturing device, and pipe manufacturing method
DE10126399A1 (de) * 2001-05-31 2002-12-05 Nexans France S A Vorrichtung zur kontinuierlichen Herstellung eines schraubenlinienförmig gewellten Metallrohres
US7311137B2 (en) * 2002-06-10 2007-12-25 Wolverine Tube, Inc. Heat transfer tube including enhanced heat transfer surfaces
US8573022B2 (en) * 2002-06-10 2013-11-05 Wieland-Werke Ag Method for making enhanced heat transfer surfaces
YU12904A (sh) * 2002-06-10 2005-09-19 Wolverine Tube Inc. Cev za prenos toplote i postupak i alat za njenu proizvodnju
US20060112535A1 (en) 2004-05-13 2006-06-01 Petur Thors Retractable finning tool and method of using
DE102005052973B4 (de) * 2004-11-09 2014-11-20 Denso Corporation Doppelwandiges Rohr und Herstellungsverfahren dafür
ES2389664T3 (es) * 2005-03-25 2012-10-30 Wolverine Tube, Inc. Herramienta para hacer superficies con mejor transferencia de calor
RU2455097C1 (ru) * 2011-04-08 2012-07-10 Федеральное государственное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Устройство для накатки профильных труб
US20140116668A1 (en) * 2012-10-31 2014-05-01 GM Global Technology Operations LLC Cooler pipe and method of forming
CN103042129B (zh) * 2012-12-31 2014-07-23 淮安市贝克铝热传输有限公司 一种散热管生产用三辊多位调节成型设备
RU2608153C2 (ru) * 2015-03-23 2017-01-16 Татьяна Васильевна Бровман Способ изготовления полых заготовок с внутренними выступами
CN111715786A (zh) * 2020-06-28 2020-09-29 刘龙英 一种波纹管加工系统

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
DE167874C (de) *
DE55042C (de) * L. GObiet und L. carrer in Düsseldorf, Feldstr. 31 bezw. Immermannstr. 17 Walzvorrichtung zur Herstellung schraubenförmig gewellter Heizröhren
DE79642C (de) *
GB720650A (en) * 1952-10-31 1954-12-22 Pirelli General Cable Works Improvements in or relating to sheathed electric cables
US3163083A (en) * 1960-09-29 1964-12-29 Hughes Aircraft Co Tube finning apparatus
US3323339A (en) * 1963-10-30 1967-06-06 Phelps Dodge Copper Prod Method and apparatus for corrugating tubes
FR1431562A (fr) * 1965-04-22 1966-03-11 Siemens Ag Procédé et dispositif pour onduler des tubes, en particulier des gaines métalliques de câbles
GB1097709A (en) * 1965-10-27 1968-01-03 Pirelli General Cable Works Improvements in or relating to apparatus for deforming tubing
US3387477A (en) * 1965-11-29 1968-06-11 Price Pfister Brass Mfg Apparatus and method for roll forming flexible tubing
US3379042A (en) * 1965-12-27 1968-04-23 Nat Acme Co Method and machine for form rolling

Also Published As

Publication number Publication date
EP0178236A1 (de) 1986-04-16
FR2570968A1 (fr) 1986-04-04
DE3562191D1 (en) 1988-05-26
ATE33567T1 (de) 1988-05-15
US4624122A (en) 1986-11-25
FR2570968B1 (fr) 1988-08-19

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