DE3044004A1 - Longitudinally welded small calibre syringe needles tube mfr. - comprises shaping metal strip into slot tube, with subsequent electronic welding - Google Patents
Longitudinally welded small calibre syringe needles tube mfr. - comprises shaping metal strip into slot tube, with subsequent electronic weldingInfo
- Publication number
- DE3044004A1 DE3044004A1 DE19803044004 DE3044004A DE3044004A1 DE 3044004 A1 DE3044004 A1 DE 3044004A1 DE 19803044004 DE19803044004 DE 19803044004 DE 3044004 A DE3044004 A DE 3044004A DE 3044004 A1 DE3044004 A1 DE 3044004A1
- Authority
- DE
- Germany
- Prior art keywords
- tube
- welding
- metal strip
- longitudinally welded
- rolling
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0818—Manufacture of tubes by drawing of strip material through dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
- B21C37/08—Making tubes with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
- B23K15/0053—Seam welding
- B23K15/006—Seam welding of rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/001—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by extrusion or drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung vonThe invention relates to a method for producing
längsnahtgeschweißten Kleinstrohren endloser Länge mit Durchmessern = 3 mm aus Metall für In#ektionsnadeln und eine Vorrichtung zur Durchführung des Verfahrens.Longitudinally welded small tubes of endless length with diameters = 3 mm made of metal for injection needles and a device for carrying out the Procedure.
Bei der Herstellung von Kleinstrohren, z.B. zur Herstellung von Injektionsnadeln und dergleichen ist man bisher von nahtlosen Rohren ausgegangen, die nach herkömmlichen Herstellungsverfahren erzeugt werden. Diese Rohre konnten verfahrensbedingt nur in bestimmten Längen gefertigt werden, d.h. sie mußten in einer Vielzahl von Verfahrensschritten gewalzt oder gezogen werden, bis Durchmesser und Wanddicke den Erfordernissen entsprachen.In the production of small tubes, e.g. for the production of injection needles and the like has been assumed so far from seamless tubes, which according to conventional Manufacturing processes are generated. Due to the process, these pipes could only be manufactured in certain lengths, i.e. they had to be made in a large number of process steps rolled or drawn until the diameter and wall thickness met the requirements.
Hierzu mußten immer wieder Glüh-, Beiz-, Bonder- und Trennvorgänge eingeschaltet werden um die entsprechenden Einrichtungen benutzen zu können.For this, annealing, pickling, bonding and separating processes had to be carried out again and again switched on in order to be able to use the corresponding facilities.
Diese Herstellungsmethode ist sehr aufwendig.This production method is very complex.
Es ist auch ein Herstellungsverfahren für Injektionsnadeln bekannt, bei dem aus Blech Formlinge ausgestanzt werden, die anschließend zu einem Röhrchen gebogen werden (DE-AS 14 77 025).A manufacturing process for hypodermic needles is also known, in which shaped pieces are punched out of sheet metal, which then form a tube be bent (DE-AS 14 77 025).
Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung für die kontinuierliche Herstellung von geschweißten Kleinstrohren in einem Arbeitsgang ohne Längenbegrenzung zu schaffen.The object of the invention is to provide a method and a device for the continuous production of small welded pipes in one operation to create without length limitation.
Gelöst wird diese Aufgabe erfindungsgemäß durch die in den Kennzeichen der Ansprüche 1 und 4 vorgeschlagenen Merkmale.This object is achieved according to the invention by the features in the characteristics of claims 1 and 4 proposed features.
Weiterbildungen ergeben sich aus den Unteransprüchen.Further developments result from the subclaims.
Die Vorteile des erfindungsgemäßen Verfahrens liegen gegenüber.bisher bekannten Herstellungsverfahren in einer kontinuierlichen Arbeitsweise unter Fortfall der vielfältigen Zwischenbehandlungen, die bei der Herstellung aus nahtlosen Luppen zwangsweise anfallen.The advantages of the method according to the invention are opposite known manufacturing processes in a continuous mode of operation with elimination of the various intermediate treatments that are used in the manufacture of seamless loops inevitably arise.
Durch den Einsatz vorgefertigten Bandes mit Enddicke ist eine bessere Innen- und Außenoberfläche des Rohres erzielbar. Der Raumbedarf für eine Anlage wird wesentlich reduziert.Using prefabricated tape with final thickness is a better one Inner and outer surface of the pipe can be achieved. The space required for a system is significantly reduced.
In den beigefügten Zeichnungen ist eine mögliche Ausführungsform für eine erfindungsgemäße Anlage schematisch dargestellt.In the accompanying drawings is a possible embodiment for a system according to the invention shown schematically.
Es zeigen: Figur 1 eine Gesamtanlage in Ansicht und in Draufsi ht Figur 2 einen Längsschnitt durch den Verformungsteil der Anlage Figur 3 mehrere Querschnitte durch Figur 2 Figur 4 ein Schnitt durch die Elektronenschweißeinrichtung.The figures show: FIG. 1 an overall system in view and in plan view Figure 2 shows a longitudinal section through the deformation part of the system Figure 3 several Cross-sections through Figure 2 Figure 4 is a section through the electron welding device.
Die in Figur 1 dargestellte Gesamtanlage setzt sich zusammen aus der Haspel 1, dem Treiber 2, einem Quernahtschweißgerät 3, einer Spaltanlage 4 und einem Einformteil 5, mit einem Zugabegerät für ein Abschirmelement (Draht oder Röhrchen) 6; ferner einer US-Reinigung 7 und einem weiteren Treiber 8. Im Anschluß daran folgen die Elektronenstrahlschweißeinrichtung 9, ein weiterer Treiber 10 und ein Ziehteil 11. Es kann ggf. ein weiteres Ziehteil 13 vorgesehen sein, dem ein Ofen 12 vorgeschaltet wird. Das fertige Röhrchen wird von einer Rohrhaspel 14 aufgenommen.The overall system shown in Figure 1 is composed of the Reel 1, the driver 2, a cross seam welder 3, a splitting system 4 and a Molded part 5, with a device for adding a shielding element (wire or tube) 6; furthermore a US cleaning 7 and a further driver 8. This is followed by this the electron beam welding device 9, another driver 10 and a drawing part 11. If necessary, a further drawn part 13 can be provided, which is preceded by an oven 12 will. The finished tube is picked up by a tube reel 14.
Figur 2 zeigt einen Längsschnitt durch den Verformungsteil der Anlage. Dieser besteht aus einem Umformkörper 20 mit einer konischen Bohrung 21, in die eine der Breite und Dicke des Bandes entsprechende Formungsnut 22 eingearbeitet ist, die von dem Bandquerschnitt ausgehend kontinuierliche in einen Rohrquerschnitt übergeht; ferner einen gla#tten, ebenfalls konischen, der Bohrung 21 entsprechenden Dorn 23. Der Dorn 23 ist mit einer durchgehenden Bohrung 24 versehen In Figur 3 sind drei Querschnitte auf den Schnittebenen A-B, C-D und E-F dargestellt. Aus diesen Darstellungen ist erkennbar, daß der Dorn 23 glatt an der Ausnehmung 21 des Umformteiles 20 anliegt und die Umformnut 22 der Breite und Dicke des Bandes 25 entsprechend ausgearbeitet ist.Figure 2 shows a longitudinal section through the deformation part of the system. This consists of a deformed body 20 with a conical bore 21 into which a forming groove 22 corresponding to the width and thickness of the band is incorporated which is continuous from the strip cross section into a pipe cross section transforms; furthermore a smooth, likewise conical, corresponding to the bore 21 Mandrel 23. The mandrel 23 is provided with a through hole 24 in FIG. 3 three cross-sections are shown on the cutting planes A-B, C-D and E-F. From these Representations can be seen that the mandrel 23 is smooth on the recess 21 of the formed part 20 is applied and the forming groove 22 of the width and thickness of the band 25 accordingly is worked out.
Die der Verformung nachgeschaltete Elektronenschweißeinrichtung ist in Figur 4 dargestellt. Das im Umformteil 20 zu einem Rohr umgeformte Band 25 wird mit Hilfe der Elektronenschweißeinrichtung 26 in der Längsnaht verschweißt, wobei ein durch die Bohrung 24 des Dornes 23 geführter Draht (oder dünnes Röhrchen) derart bis in die Schweißrichtung vorgebracht wird, daß die Rückseite des Rohrinnendurchmessers nicht beschädigt werden kann. Die Elektrodenschweißeinrichtung 26 ist in einem evakuierbaren Anschlußkörper 27 eingesetzt.The electron welding device downstream of the deformation is shown in FIG. The band 25, which is formed into a tube in the forming part 20, is welded in the longitudinal seam with the aid of the electron welding device 26, wherein a wire (or thin tube) guided through the bore 24 of the mandrel 23 in this way until it is advanced in the welding direction that the back of the pipe inside diameter cannot be damaged. The electrode welding device 26 can be evacuated Connection body 27 used.
Wirkungsweise: Wie aus den vorstehenden Zeichnungsangaben erkennbar, wird das Rohr in bekannter Weise über eine Haspel 1, Treiber 2, einem Quernahtschweißgerät 3und einer Spaltanlage 4 in das Einformteil 5 geführt und dort zu einem Schlitzrohr verformt. Nach Reinigungen in einer US-Reinigungsanlage 7 durchläuft das Schlitzrohr eine weitere Treibvorrichtung 8 und wird in die Elektronenstrahlschweißeinrichtung 9 geführt. Gleichzeitig wird über eine Transporteinrichtung 6 ein Draht oder ein dünnes Röhrchen durch den mit einer Bohrung versehenen Dorn 23 soweit in die Schweißeinrichtung 9 eingeführt, daß beim Verschweißen des unter Tangentialdruckspannung stehenden Schlitzröhrchens die gegenüberliegende Innenoberfläche des Rohres gegen den Elektronenstrahl abgeschirmt wird. Die Elektronenstrahlschweißeinrichtung 9 wird im Bereich des Elektronenstrahls im Bereich des Anschlußkörpers 27 evakuiert. Nach dem Verschweißen des Röhrchens erfolgt der Weitertransport desselben über einen Treiber 10 in ein Ziehteil 11, wo eine Durchmesserreduktion auf den gewünschten Enddurchmesser erfolgt. Diese Durchmesserreduktion erfolgt beispielsweise in einem üblichen Reduzierwalzwerk nach oder gemäß nachstehender Tabelle. Falls erforderlich kann ein weiteres Ziehteil 13 unter Vorschaltung eines Ofens 12 eingesetzt werden. Das fertige Rohr wird von einer Rohrhaspel 14 aufgenommen.Mode of operation: As can be seen from the drawing details above, the pipe is in a known manner via a reel 1, driver 2, a transverse seam welder 3 and a splitting system 4 are guided into the molded part 5 and there to a slotted tube deformed. After cleaning in a US cleaning system 7, the slotted tube runs through another driving device 8 and is in the electron beam welding device 9 led. At the same time, a wire or a Thin tube through the drilled mandrel 23 as far into the welding device 9 introduced that when welding the standing under tangential compressive stress Slotted tube the opposite inner surface of the tube against the electron beam is shielded. The electron beam welding device 9 is in the area of the electron beam evacuated in the area of the connection body 27. After welding the tube the onward transport takes place the same via a driver 10 in one Drawn part 11, where the diameter is reduced to the desired final diameter. This diameter reduction takes place, for example, in a conventional reducing mill according to or according to the table below. If necessary, another drawn part can be used 13 can be used with an upstream furnace 12. The finished pipe is made of a pipe reel 14 was added.
Tabelle
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803044004 DE3044004A1 (en) | 1980-11-18 | 1980-11-18 | Longitudinally welded small calibre syringe needles tube mfr. - comprises shaping metal strip into slot tube, with subsequent electronic welding |
JP56153555A JPS5788988A (en) | 1980-11-18 | 1981-09-28 | Method and apparatus for manufacturing small-diameter pipe with limitless length seam-welded in length direction used for manufacture of injection needle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803044004 DE3044004A1 (en) | 1980-11-18 | 1980-11-18 | Longitudinally welded small calibre syringe needles tube mfr. - comprises shaping metal strip into slot tube, with subsequent electronic welding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3044004A1 true DE3044004A1 (en) | 1982-06-16 |
Family
ID=6117306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803044004 Ceased DE3044004A1 (en) | 1980-11-18 | 1980-11-18 | Longitudinally welded small calibre syringe needles tube mfr. - comprises shaping metal strip into slot tube, with subsequent electronic welding |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5788988A (en) |
DE (1) | DE3044004A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19507224A1 (en) * | 1995-01-11 | 1996-07-18 | Becker Plastics Gmbh | Aluminium@ foil sheathing of thermoplastic tube using electron beam welding |
DE19928349A1 (en) * | 1999-06-21 | 2001-01-04 | Manfred Jansen | Manufacturing straight bead welded wire involves forming metal strip into slotted tube, electron beam welding along weld joint formed by slot, switching beam between slotted tubes |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4844911B1 (en) * | 2011-02-17 | 2011-12-28 | 株式会社安川電機 | DIN rail mounting type equipment |
-
1980
- 1980-11-18 DE DE19803044004 patent/DE3044004A1/en not_active Ceased
-
1981
- 1981-09-28 JP JP56153555A patent/JPS5788988A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19507224A1 (en) * | 1995-01-11 | 1996-07-18 | Becker Plastics Gmbh | Aluminium@ foil sheathing of thermoplastic tube using electron beam welding |
DE19928349A1 (en) * | 1999-06-21 | 2001-01-04 | Manfred Jansen | Manufacturing straight bead welded wire involves forming metal strip into slotted tube, electron beam welding along weld joint formed by slot, switching beam between slotted tubes |
DE19928349C2 (en) * | 1999-06-21 | 2001-11-29 | Manfred Jansen | Device for producing longitudinally welded pipes |
Also Published As
Publication number | Publication date |
---|---|
JPS5788988A (en) | 1982-06-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8125 | Change of the main classification |
Ipc: B23K 15/00 |
|
8126 | Change of the secondary classification |
Ipc: B21C 37/08 |
|
8131 | Rejection |