DE2737277A1 - Vulcanisation mandrel for mfr. of curved tube fittings - is fitted with slidable calibrating sleeves, one of which is fixable in vulcanisation position - Google Patents

Vulcanisation mandrel for mfr. of curved tube fittings - is fitted with slidable calibrating sleeves, one of which is fixable in vulcanisation position

Info

Publication number
DE2737277A1
DE2737277A1 DE19772737277 DE2737277A DE2737277A1 DE 2737277 A1 DE2737277 A1 DE 2737277A1 DE 19772737277 DE19772737277 DE 19772737277 DE 2737277 A DE2737277 A DE 2737277A DE 2737277 A1 DE2737277 A1 DE 2737277A1
Authority
DE
Germany
Prior art keywords
mandrel
vulcanisation
fixable
mfr
slidable
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.)
Granted
Application number
DE19772737277
Other languages
German (de)
Other versions
DE2737277C2 (en
Inventor
Raimond Kurzock
Karl Dipl Ing Dr Rastaedter
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.)
Phoenix AG
Original Assignee
Phoenix 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 Phoenix AG filed Critical Phoenix AG
Priority to DE19772737277 priority Critical patent/DE2737277C2/en
Publication of DE2737277A1 publication Critical patent/DE2737277A1/en
Application granted granted Critical
Publication of DE2737277C2 publication Critical patent/DE2737277C2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/08—Bending or folding of tubes or other profiled members
    • B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

A mandrel is claimed for mfr. of elbow hose and similar fittings of rubber or rubbery material which are opt. reinforced. The mandrel has a fixed frontal ring at one end, and a bushing that moves axially over it; and, at the other end, a similarly mobile bushing which is provided with a flange at its inside. This latter bushing is pref. accurately fixable in its vulcanisation position. The bushings serve as calibrating sleeves and are selectively movable so that an unvulcanised elbow hose that is inaccurate to size can be rendered dimensionally accurate.

Description

Dorn zum Herstellen von Mandrel for making

Krümmerschläuchen Die Erfindung bezieht sich auf einen Dorn zum herstellen von Krümmersclllauchen aus uummi oder gummiähnlichem Naterial mit und ohne Verstärkungseinlage. Elbow hoses The invention relates to a mandrel for manufacturing of elbow hose made of rubber or rubber-like material with and without reinforcement insert.

Krümmerschläuche werden hergestellt, indem man vorgefertigte Rohlingsstücke aufeinen Heizdorn schiebt und anschließend vulkanisiert0 Dabei können folgende Fehler entstehen: Durch Stauchen des rohlings kann die Wanddikke des Schlauches über die erlaubte Toleranz hinaus zunehmen. lurch ungünstige Artikelkontur kann der I?ohling aufgeweitet werden, so daß der Schlauch einen zu großen Innendurchmesser oder ein unrundes bnde erhält.Elbow hoses are made by making pre-made blank pieces pushes onto a heating mandrel and then vulcanized0 The following errors can arise: By compressing the blank, the wall thickness of the hose can exceed the increase allowed tolerance. The I? ohling be widened, so that the hose too large an inside diameter or a out of round band.

Aufgabe der Erfindung ist es, einen Dorn zum Herstellen von Krümmerschläuchen zu schaffen, bei dem die genannten Fehler entfallen.The object of the invention is to provide a mandrel for producing elbow hoses to create in which the errors mentioned do not apply.

Zur Lösung dieser Aufgabe ist ein Dorn vorgesehen, der an beiden Seiten Kalibriermuffen aufweist, die sich auf dem Dorn axial verschieben lassen. Der Schiebeweg in Schlauchrichtung kann an der fixierten Dornseite durch einen durch Verschweißen oder Verschrauben mit dem Dorn verbundenen Stirnring erfolgen und an der Aufschubseite durch einen Endansehlag0 Das Wesentliche dieses Erfindungsgedankeiis besteht darin, daß mit Hilfe einer verschiebbaren Kalibriermuffe ein nicht maßhaltiger unvulkanisierter Schlauch maßhaltig gemacht wird.To solve this problem, a mandrel is provided on both sides Has calibration sleeves that can be moved axially on the mandrel. The sliding path in the direction of the hose can be welded to the fixed side of the mandrel or screwing to the end ring connected to the mandrel and on the push-on side by a final view0 The essence of this inventive concept is that that with the help of a displaceable calibration sleeve a non-dimensionally unvulcanized Hose is made true to size.

Die Erfindung wird in Verbindung mit einer Abbildung beispielsweise beschrieben. Die Abbildung zeigt einen schematischen Querschnitt durch den Dorn.The invention is used in connection with an illustration for example described. The figure shows a schematic cross section through the mandrel.

Der Dorn 1 ist zur Vereinfachung als gerades Rohrstück mit Muffenaufweitung dargestellt, obwohl er sehr unterschiedliche Gestaltungen aufweisen kann, Auf dem Dorn 1 befindet sich der Krümmerschlauchrohling 2.For the sake of simplicity, the mandrel 1 is a straight pipe section with a socket expansion shown, although it can have very different designs, on the Mandrel 1 is the elbow hose blank 2.

Der rohling 2 wird von der Aufschubseite 5 auf den Dorn geschoben, bis er den Stirnring 3 berührt. Der Stirnring 3 ist fest mit dem Dorn verbunden Dann wird die Kalibriermuffe 6 so weit aufgeschoben, bis die Verriegelungsplatte 7 die Anschlagfläche 8 berührt und wird durch Drehung um 1800 in der Ringnut 11 auf dem Dorn fixiert. Jetzt wird die Kalibriermuffe 4 über den Rohling 2 geschoben, bis sie an der linken Stirnfläche des Stirnringes 3 anliegt.The blank 2 is pushed onto the mandrel from the push-on side 5, until it touches the front ring 3. The end ring 3 is firmly connected to the mandrel Then the calibration sleeve 6 is pushed on until the locking plate 7 touches the stop surface 8 and is rotated through 1800 in the annular groove 11 fixed on the mandrel. Now the calibration sleeve 4 is pushed over the blank 2, until it rests against the left end face of the end ring 3.

In den Überlappungsbereichen 9 und 10 ist der Schlauchrohling 2 fest zwischen dem Dorn 1 und den Kalibriermuffen 4 und 6 eingeklemmt. Er erhält dadurch eine exakte Maßhaltigkeit und eine völlig glatte Oberfläche. LeerseiteThe hose blank 2 is fixed in the overlapping areas 9 and 10 wedged between the mandrel 1 and the calibration sleeves 4 and 6. He gets through it exact dimensional accuracy and a completely smooth surface. Blank page

Claims (2)

Ansprüche ~1.?) I>orn zum Herstellen von Krümmerschläuci'en aus gummi oder gummiähnlichem tsaterial mit und ohne textile Verstärkung, dadurch gekennzeichnet, daß der Dorn (1) an einem Ende einen festen Stirnring (3) und eine axial darüber bewegliche Muffe (4), und der Dorn (1) am anderen Ende eine zweite ebenfalls zum Dorn (1) axial bewegliche auf der Innenseite mit einem Flansch ausgestatteten Muffe (6) aufweist. Claims ~ 1.?) I> orn for the production of elbow hoses rubber or rubber-like material with and without textile reinforcement, characterized in that that the mandrel (1) at one end has a fixed end ring (3) and one axially above it movable sleeve (4), and the mandrel (1) at the other end a second also to Mandrel (1) axially movable on the inside with a flange equipped sleeve (6). 2.) Dorn nach Anspruch 1, dadurch gekennzeichnet, daß @@@@ die Muffe (6) in ihrer Vulkanisationsposition genau fixierbar ist. 2.) mandrel according to claim 1, characterized in that @@@@ the sleeve (6) can be precisely fixed in its vulcanization position.
DE19772737277 1977-08-18 1977-08-18 Mandrel for making elbow hoses Expired DE2737277C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772737277 DE2737277C2 (en) 1977-08-18 1977-08-18 Mandrel for making elbow hoses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772737277 DE2737277C2 (en) 1977-08-18 1977-08-18 Mandrel for making elbow hoses

Publications (2)

Publication Number Publication Date
DE2737277A1 true DE2737277A1 (en) 1979-03-01
DE2737277C2 DE2737277C2 (en) 1987-02-12

Family

ID=6016742

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772737277 Expired DE2737277C2 (en) 1977-08-18 1977-08-18 Mandrel for making elbow hoses

Country Status (1)

Country Link
DE (1) DE2737277C2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520664A1 (en) * 1982-01-29 1983-08-05 Caoutchouc Manuf Plastique Elbowed flexible connector hoses of required length - with ends ridged or imprinted with information during mfr.
FR2548086A1 (en) * 1983-06-29 1985-01-04 Tokai Rubber Ind Ltd Method of manufacturing a profiled rubber tube
EP0385868A1 (en) * 1989-03-02 1990-09-05 Caoutchouc Manufacture Et Plastiques Process for forming rubber tube extremities during their vulcanization on a mandrel and deformable tooling for execution of the process
EP1057613A1 (en) * 1999-05-31 2000-12-06 Veritas Ag Method for producing a bent hose
EP1837158A1 (en) * 2006-03-15 2007-09-26 ContiTech Schlauch GmbH Mandrel for manufacturing curved hoses
CN105835270A (en) * 2016-05-10 2016-08-10 天津鹏翎胶管股份有限公司 Vulcanization belt chamfering core bar device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057824B4 (en) * 2005-12-03 2015-05-21 Contitech Schlauch Gmbh Device for producing curved hoses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1130030A (en) * 1913-01-02 1915-03-02 Herbert H Hewitt Mandrel for forming and vulcanizing rubber hose.
DE2422557A1 (en) * 1974-05-09 1975-11-20 Continental Gummi Werke Ag Pipe bends of rubber-plastics material - made by vulcanising preform supported by inner mandrel, and with a sleeve around end section

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1130030A (en) * 1913-01-02 1915-03-02 Herbert H Hewitt Mandrel for forming and vulcanizing rubber hose.
DE2422557A1 (en) * 1974-05-09 1975-11-20 Continental Gummi Werke Ag Pipe bends of rubber-plastics material - made by vulcanising preform supported by inner mandrel, and with a sleeve around end section

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520664A1 (en) * 1982-01-29 1983-08-05 Caoutchouc Manuf Plastique Elbowed flexible connector hoses of required length - with ends ridged or imprinted with information during mfr.
FR2548086A1 (en) * 1983-06-29 1985-01-04 Tokai Rubber Ind Ltd Method of manufacturing a profiled rubber tube
EP0385868A1 (en) * 1989-03-02 1990-09-05 Caoutchouc Manufacture Et Plastiques Process for forming rubber tube extremities during their vulcanization on a mandrel and deformable tooling for execution of the process
FR2643853A1 (en) * 1989-03-02 1990-09-07 Caoutchouc Manuf Plastique PROCESS FOR FORMING THE END OF RUBBER TUBES DURING VULCANIZATION ON A MANDREL AND DEFORMABLE TOOLING FOR CARRYING OUT THIS OPERATION
US5055251A (en) * 1989-03-02 1991-10-08 Caoutchouc Manufacture Et Plastiques S.A. Proces and apparatus for forming extremities of tubes
EP1057613A1 (en) * 1999-05-31 2000-12-06 Veritas Ag Method for producing a bent hose
EP1837158A1 (en) * 2006-03-15 2007-09-26 ContiTech Schlauch GmbH Mandrel for manufacturing curved hoses
CN105835270A (en) * 2016-05-10 2016-08-10 天津鹏翎胶管股份有限公司 Vulcanization belt chamfering core bar device
CN105835270B (en) * 2016-05-10 2019-07-23 天津鹏翎胶管股份有限公司 A kind of vulcanization band chamfering core bar device

Also Published As

Publication number Publication date
DE2737277C2 (en) 1987-02-12

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8305 Restricted maintenance of patent after opposition
D4 Patent maintained restricted
8339 Ceased/non-payment of the annual fee