EP1120175A1 - Dispositif et tête de formation de boucles pour la fabrication d'un tuyau hélicoidal à partir d'une bande nervurée - Google Patents

Dispositif et tête de formation de boucles pour la fabrication d'un tuyau hélicoidal à partir d'une bande nervurée Download PDF

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Publication number
EP1120175A1
EP1120175A1 EP00101809A EP00101809A EP1120175A1 EP 1120175 A1 EP1120175 A1 EP 1120175A1 EP 00101809 A EP00101809 A EP 00101809A EP 00101809 A EP00101809 A EP 00101809A EP 1120175 A1 EP1120175 A1 EP 1120175A1
Authority
EP
European Patent Office
Prior art keywords
forming
plastic
band
profiling
band material
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.)
Withdrawn
Application number
EP00101809A
Other languages
German (de)
English (en)
Inventor
Klaus-Dr. Müller
Juan Torre
Paul Kasper
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.)
Tormec AG
Original Assignee
Tormec 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 Tormec AG filed Critical Tormec AG
Priority to EP00101809A priority Critical patent/EP1120175A1/fr
Priority to US09/768,814 priority patent/US6460236B1/en
Publication of EP1120175A1 publication Critical patent/EP1120175A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5185—Tube making
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53113—Heat exchanger

Definitions

  • the invention relates to devices for the manufacture of spiral duct pipes according to the preamble of claim 1 and bending devices therefor.
  • a profiling device forms matching edges of the band material to be joined together Folding wheels or shelves made after forming the strip material inserted into each other in the bending device and with the closing device interacting locking wheels are pressed together to form a fold connection.
  • the strip material becomes helical in the bending device by means of a forming surface applied to a cylindrical surface, the resulting partial surface of a cylinder jacket should be referred to as helical.
  • each other Connecting the fold edges is preferably a single board in a double board inserted and then they protrude from the pipe surface Borders closed and preferably against the pipe outer surface pressed.
  • the fold connection runs helically around the so produced Spiral folded tube.
  • a cutting device for example a rotating cutting disc or a Roller shears are provided.
  • a major disadvantage of this solution is that the strip material is intense Frictional contact with the metallic guide plates and the metallic forming surface to wear on the guide and forming surfaces, as well as on the strip material leads. Even when passing through the drive and / or profiling roller pairs the strip material in intensive frictional contact with corresponding abrasion.
  • the metallic abrasion leads to visual impairments of the surface of the manufactured Spiral duct.
  • the abrasion softened due to the heat generated by the friction and, for example be deposited on the closing rollers, which affects the function of the rollers and increases the maintenance effort.
  • metal chips also result or other solid particles between the guide surfaces and the band material get faults or scratches in the surface of the spiral duct.
  • a cutting disc is used as a cutting device, this occurs when cutting off a pipe section of metal chips.
  • the devices for producing spiral duct are often in Rooms in which metal chips are generated by other machines. Therefore should the scratching effect of such metal chips on the folded spiral-seam pipes was kept as small as possible become.
  • the invention is based on the object of a device for producing To find folded spiral-seam pipes, or a bending device for this, which is simply constructed and for pipes made of strip material that is coated or has a sensitive surface has reduced unwanted soiling and damage.
  • the metal wear is decisive can be reduced if at least the forming surface and preferably also the guide surface comprises a plastic contact surface.
  • This can be done using the forming surface and preferably also at least one guide surface with plastic coated or made of plastic.
  • band-shaped forming surfaces with a plastic contact surface because they are simple replaced and provided for all pipe diameters that may be required can be.
  • the preferred form tapes comprise a metal band made of spring steel, which is coated with low-friction plastic is. If necessary, however, plastic forming tapes, in particular made of a mono or a composite plastic.
  • the composite materials preferably comprise glass or carbon fibers.
  • plastic coatings When using plastic coatings must be between, preferably metallic, support part and the coating an extremely stable connection be achieved. This can be done using special adhesives that are particularly good on metallic Stick surfaces, be used and / or increase the adhesion before coating Surface treatments are carried out on the carrier part. At The appropriate surface treatments are preferably a roughening step carried out by grinding and / or sandblasting.
  • the one for coatings Suitable plastics must interact with the surface of the strip material ensure small coefficients of friction.
  • Such low-friction plastic coatings can from Poliamid, in particular Poliamid 11 (brand Rilsan), or polyethylene, in particular a PE ionomer (Abcite brand), or Chlorotrifluoroethylene (CTFE), in particular E-CTFE (Halar brand). It goes without saying that other low-friction coatings, in particular Teflon-like polytetrafluoroethylene (PTFE) or polyperfluoroethylene propylene (T. FEP) can be used.
  • the thickness of the plastic coating used is preferably in the range of 0.1-0.8mm and especially in the range of 0.2-0.4mm. With layer thicknesses in These areas can ensure that the coated contact surfaces achieve sufficiently long operating times until the coating has completely abraded. If necessary, worn forming surfaces are again made with plastic coated, which is particularly true when using coated tapes can be carried out with reasonable effort and with minimal material consumption leads. Because the metal abrasion from metal forming and guide surfaces especially for pipes that are coated or made of polished stainless steel, is disruptive, the use of the coated forming surfaces on this Pipes are limited. These specially sensitive tubes only make up approx. 5-10% the total production of a pipe manufacturer.
  • the coated forming surfaces or forming tapes are relatively small and this means that these coated forming tapes do not have to be replaced very often.
  • uncoated Forming surfaces are used because the zinc re-passivates at the injury points.
  • there are scratches on galvanized material due to the trained on it Zinc flowers poorly visible.
  • the forming surface can and preferably also the guide surfaces are made entirely of plastic become.
  • Composites are used to achieve a large one Tear resistance of forming surfaces at least one fiber material, especially glass or carbon fibers.
  • the fiber material can be used as reinforcement, for example can be used in an extruded or cast plastic part. Possibly but becomes the fiber material for the production of a yarn and subsequently of a fabric used.
  • the fabric can in turn be used as reinforcement be used in a plastic part. If necessary, the fabric with coated with a low-friction plastic or used directly as a forming surface.
  • Plastic parts have a smaller size compared to coated metal parts Weight. If the forming surface of the bending device is not rigid, the lead Deformation movements when changing the forming surface for a plastic part less damage or breakage than metal parts coated with plastic. Therefore, forming tapes are essentially made of plastic only are advantageous.
  • the forming surface and possibly also the guide surface is a contact surface made of plastic, so arises during the movement of the strip material no metallic abrasion along the contact surface.
  • the possibly arising Plastic abrasion is not dark and does not cause oxidation. It also prevents that the surface of the tape material is damaged.
  • the lubricant preferably in the form of a penetrating oil, applied in very small quantities so that neither the pipe nor the environment is exposed to the lubricant becomes noticeably dirty.
  • a high-performance cutting oil is preferably used which comprises a mineral oil-hydrocarbon mixture and in particular an ester.
  • the lubricant commercially available under the name Isolube is for Suitable for use.
  • the lubricant is not used like a bath, but preferably with one Application sponge applied to the surface of the strip material.
  • the application takes place at least before the strip material is formed with the forming surface, but preferably before profiling the strip material.
  • the Application device for applying the lubricant is preferably designed such that metal shavings are retained and not with the band material between this and an adjacent contact surface can reach.
  • Fig. 1 shows a device (1) for producing folded spiral tubes (2) from strip material (3).
  • the device (1) comprises a profiling device (4) for forming of folding wheels on the strip material.
  • the profiling device (4) comprises, for example at least three, but preferably four, not shown profiling roller pairs.
  • the profiling device (4) comprises, for example at least three, but preferably four, not shown profiling roller pairs.
  • For forming folding wheels especially on one side of the strip material Single board and a double board on the other side of the strip material are preferred three pairs of profiling rollers used.
  • a pair of profiling rollers formed to form at least one reinforcing bead. Reinforcing beads are particularly thin strip materials and / or large ones Appropriate pipe diameters.
  • a role of the pair of profiling rollers Forming reinforcing beads, can be removed or inserted with little effort.
  • a pair of profiling rollers is preferably used to form folded edges arranged as a pair of rolls first run through by the strip material. From the profiling device 4 the profiled strip material 3 passes through a guide arrangement 6 at least one guide surface in a bending device for forming the Band material 3 by means of a forming surface 7 in a helical Partial surface of a cylinder jacket.
  • the forming surface 7 is from the inside of a plastic-coated forming tape 8 is formed.
  • the tape material arrives from the guide arrangement 6 to the inside of the forming belt 8, on which it moves along due to the continuous feed and is thereby curved.
  • a support device 9 provided that the forming tape at least on two, but preferably on supports three points against external deformation.
  • the Embodiment three guide profiles 10 provided, the narrowest Guide the ribbon area in different radial directions. For example one guide profile leads vertically upwards and two others are on both sides of it an angle of essentially 45 ° rotated.
  • On the management profiles 10 are support elements 11 corresponding to the desired pipe diameter and can be fixed on the appropriate ribbon.
  • the rolling device 5, the profiling device 4, the guide arrangement 6 and the Forming surface 7 are along a pivotable relative to the exit axis a feed axis extending, carrier 16 arranged so that the angle between the feed axis and the exit axis to the respective pipe diameter can be customized.
  • the band material that can be used consists at least partially of metal, in particular Sheet metal or steel, a surface protection by a zinc layer, an oxide layer, a plastic coating, or through the use of stainless Metal, especially stainless steel is achieved.
  • a bleaching is commonly used a width of 137mm and a thickness corresponding to the one to be produced Pipe diameter is between 0.5 and 1mm.
  • Fig. 2 shows a section of the guide assembly 6, as well as the ribbon 8 and the Locking device 12.
  • the guide arrangement 6 comprises a on a support plate 6c first guide surface 6a, which is composed of partial surfaces, with between the partial areas extend in the tape feed direction. In these recesses can the optionally formed reinforcing beads of the band material be included.
  • first guide surface 6a which is composed of partial surfaces, with between the partial areas extend in the tape feed direction.
  • the optionally formed reinforcing beads of the band material be included.
  • a further guide surface 6a is provided, so that the Tape material is inserted into the forming tape, resting against the first guide surface can be.
  • the surface of the first one and especially the one second guide surface 6a can arise when moving the strip material over the guide surface can be prevented by metal abrasion. Because the tape material comes out right after it exits the cooperating guide surfaces curved on the forming surface 7 of the forming belt very large frictional forces occur. Because of these large frictional forces were no materials other than metal according to the prior art used. This limitation to metallic guiding and forming surfaces is also with to explain the prejudice that due to the high forces and intensive rubbing only metals can be used. The abrasion was only great Reduced amounts of lubricant. Surprisingly, it has now been shown that the low-friction plastics mentioned above can withstand the high loads.
  • Lateral borders 6b are formed on both sides of the first guide surface 6a which the lateral fold edges of the strip material 3 are guided.
  • a sideline of the forming belt 8 is arranged as an extension of the side edge 6b and therefore serves as a lateral guideline for a folded edge when the Tape material. After a curvature of 360 °, this side guide line of the Formband 8 the associated folding edge to the other folding edge, the other lateral edges 6b of the first guide surface 6a is guided.
  • the Forming tape Shortly before the seam locking device 12 one folding edge is inserted into the other, the Forming tape shortly before the insertion area has a recess 8a which is unobstructed Insertion of the two folded edges guaranteed.
  • the folding closing device 12 is also arranged in the region of the recess 8a.
  • a bracket 13b for holding a closing roller 13 is fastened to the support plate 6c, the bracket through the forming tape 8 against the tube produced extends.
  • the other closing roller 13 is also rotatably attached to the support plate 6c.
  • 8 terminal blocks 8b are attached to both ends of the forming band Fastening points with the support plate 6c, or a fastening part arranged thereon 6d are connectable.
  • the connection is preferably made with two Screws, but any other connections are also conceivable.
  • the forming tape 8 is attached to a connecting block 8b in a somewhat adjustable manner, so that the effective length of the forming belt 8 is somewhat adjustable.
  • plastic could also scratch the outer surface of the pipe can be reduced by metal chips.
  • the chips are sometimes so deep in the Plastic pressed in so that they no longer produce any visible scratch marks.
  • the risk of scratching is also reduced by choosing a relatively small mold bandwidth of essentially 25mm.
  • the preferred form strips comprise a spring steel strip which is coated with plastic.
  • the thickness of the spring steel strip is in Range of 1-2mm, preferably at 1.5mm.
  • the thickness of the plastic coating used is preferably in the range of 0.1-0.8mm and in particular in Range from 0.2-0.4mm.
  • the ribbon length is based on the diameter or the circumference adapted to the pipe to be manufactured.
  • shaped tapes made of plastic, especially one Mono or a composite plastic used.
  • the composites include preferably glass or carbon fibers and also ensure in the form of Bands high strength.
  • Fig. 3 shows two schematic sections of a pipe wall in the direction the tube axis, how the two fold edges 3a and 3b insert into each other and then close to a closed fold 3c.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP00101809A 2000-01-28 2000-01-28 Dispositif et tête de formation de boucles pour la fabrication d'un tuyau hélicoidal à partir d'une bande nervurée Withdrawn EP1120175A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00101809A EP1120175A1 (fr) 2000-01-28 2000-01-28 Dispositif et tête de formation de boucles pour la fabrication d'un tuyau hélicoidal à partir d'une bande nervurée
US09/768,814 US6460236B1 (en) 2000-01-28 2001-01-23 Apparatus for producing wrapped slip tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00101809A EP1120175A1 (fr) 2000-01-28 2000-01-28 Dispositif et tête de formation de boucles pour la fabrication d'un tuyau hélicoidal à partir d'une bande nervurée

Publications (1)

Publication Number Publication Date
EP1120175A1 true EP1120175A1 (fr) 2001-08-01

Family

ID=8167719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101809A Withdrawn EP1120175A1 (fr) 2000-01-28 2000-01-28 Dispositif et tête de formation de boucles pour la fabrication d'un tuyau hélicoidal à partir d'une bande nervurée

Country Status (2)

Country Link
US (1) US6460236B1 (fr)
EP (1) EP1120175A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107931352A (zh) * 2017-10-18 2018-04-20 江苏师范大学 一种油漆刷铁壳自动化生产线
CN110682157A (zh) * 2019-10-23 2020-01-14 中国航发贵州红林航空动力控制科技有限公司 一种3Cr13弹性元件的加工方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090320542A1 (en) * 2008-01-18 2009-12-31 William James Kephart Tube making machine with diameter control and method
RU2493008C2 (ru) * 2011-12-22 2013-09-20 Общество с ограниченной ответственностью Специальное Конструкторское Бюро "Мысль" Способ изготовления труб из композиционного материала
TR201720046A2 (tr) * 2017-12-11 2019-06-21 Sente Makina Insaat Sanayi Ve Ticaret Ltd Sirketi Yuvarlak kanal maki̇nasinda plc kotrol algori̇tmasi ve bu maki̇nada yapilan geli̇şti̇rme
CN110270787B (zh) * 2019-08-11 2020-11-03 滁州市嘉冠建设工程有限公司 建筑螺旋输送机用螺旋叶片智能化组对焊接成型设备
CN113043014A (zh) * 2021-03-24 2021-06-29 深圳市中汇强科技有限公司 一种鱼缸过滤网组装设备
CN117840771B (zh) * 2023-12-27 2024-08-02 德清卡诺晶体纤维有限公司 Pecvd和硼扩加热炉内芯制作装置及其生产工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246651B (de) * 1961-07-31 1967-08-10 Ct De Rech S De Pont A Mousson Formmittel fuer ein Schraubennahtrohrwerk
DE1452324A1 (de) * 1962-01-26 1968-11-14 Erling Jensen Vorrichtung zum Herstellen von Rohren
DE2017383A1 (en) * 1970-04-11 1971-10-28 Demag Ag Helical welded tube forming jig
US3940962A (en) * 1974-05-09 1976-03-02 Pacific Roller Die Company, Incorporated Conduit making machine with diameter control and method
US4567742A (en) * 1984-01-10 1986-02-04 Spiro America Inc. Ribbed spiral pipe producing machine
US5737832A (en) * 1992-10-07 1998-04-14 Protol A.G. In and relating to machines for forming helically wound lock-seam tubing having multiple wall thickness
WO1998017412A1 (fr) * 1996-10-21 1998-04-30 Filterwerk Mann+Hummel Gmbh Systeme pour former un tuyau en forme d'helice

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336702A (en) * 1980-09-12 1982-06-29 Amado Jr Juan J Method of and apparatus for making spiral tubes
IT1199419B (it) * 1984-11-14 1988-12-30 Valtiero Tizzi Procedimento ed apparecchiatura per la decorazione automatica di elicoidi e/o maglie per la realizzazione di prodotti concatenabili di oreficeria e bigiotteria
WO1993006986A1 (fr) * 1991-10-02 1993-04-15 Rib Loc Australia Pty. Ltd. Machine a boucle servant a enrouler des bandes en helice

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246651B (de) * 1961-07-31 1967-08-10 Ct De Rech S De Pont A Mousson Formmittel fuer ein Schraubennahtrohrwerk
DE1452324A1 (de) * 1962-01-26 1968-11-14 Erling Jensen Vorrichtung zum Herstellen von Rohren
DE2017383A1 (en) * 1970-04-11 1971-10-28 Demag Ag Helical welded tube forming jig
US3940962A (en) * 1974-05-09 1976-03-02 Pacific Roller Die Company, Incorporated Conduit making machine with diameter control and method
US4567742A (en) * 1984-01-10 1986-02-04 Spiro America Inc. Ribbed spiral pipe producing machine
US5737832A (en) * 1992-10-07 1998-04-14 Protol A.G. In and relating to machines for forming helically wound lock-seam tubing having multiple wall thickness
WO1998017412A1 (fr) * 1996-10-21 1998-04-30 Filterwerk Mann+Hummel Gmbh Systeme pour former un tuyau en forme d'helice

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107931352A (zh) * 2017-10-18 2018-04-20 江苏师范大学 一种油漆刷铁壳自动化生产线
CN110682157A (zh) * 2019-10-23 2020-01-14 中国航发贵州红林航空动力控制科技有限公司 一种3Cr13弹性元件的加工方法
CN110682157B (zh) * 2019-10-23 2021-09-21 中国航发贵州红林航空动力控制科技有限公司 一种3Cr13弹性元件的加工方法

Also Published As

Publication number Publication date
US20020029467A1 (en) 2002-03-14
US6460236B1 (en) 2002-10-08

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