DE10127130A1 - Combination hose, has a heat setting adhesive applied to the inner hose surface, as a strand with an embedded electrical resistance heater to activate the adhesive and bond the inner hose to the inner surface of the outer hose - Google Patents

Combination hose, has a heat setting adhesive applied to the inner hose surface, as a strand with an embedded electrical resistance heater to activate the adhesive and bond the inner hose to the inner surface of the outer hose

Info

Publication number
DE10127130A1
DE10127130A1 DE10127130A DE10127130A DE10127130A1 DE 10127130 A1 DE10127130 A1 DE 10127130A1 DE 10127130 A DE10127130 A DE 10127130A DE 10127130 A DE10127130 A DE 10127130A DE 10127130 A1 DE10127130 A1 DE 10127130A1
Authority
DE
Germany
Prior art keywords
hose
melt adhesive
strand
heating resistor
adhesive
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Withdrawn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
DE10127130A
Other languages
German (de)
Inventor
Georg Peter Linhart
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.)
Truplast Kunststofftechnik GmbH
Original Assignee
Truplast Kunststofftechnik GmbH
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 Truplast Kunststofftechnik GmbH filed Critical Truplast Kunststofftechnik GmbH
Priority to DE10127130A priority Critical patent/DE10127130A1/en
Publication of DE10127130A1 publication Critical patent/DE10127130A1/en
Withdrawn legal-status Critical Current

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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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5227—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles
    • B29C66/52271—Joining tubular articles for forming multi-tubular articles by longitudinally joining elementary tubular articles wall-to-wall (e.g. joining the wall of a first tubular article to the wall of a second tubular article) or for forming multilayer tubular articles one tubular article being placed inside the other
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B29C65/348—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic with a polymer coating
    • 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
    • B29L2023/18—Pleated or corrugated hoses
    • B29L2023/186—Pleated or corrugated hoses having a smooth internal wall
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
    • B29L2031/602—Multi-tubular articles, i.e. composed of a plurality of tubes composed of several elementary tubular elements
    • B29L2031/603—Multi-tubular articles, i.e. composed of a plurality of tubes composed of several elementary tubular elements one placed inside the other, e.g. dual wall tubes

Abstract

Combination hose, has a heat setting adhesive applied to the inner hose surface, as a strand with an embedded electrical resistance heater to activate the adhesive and bond the inner hose to the inner surface of the outer hose. To produce a combined hose structure, with an outer hose (1) and an inner hose (2), a heat setting adhesive (3) is applied in a longitudinal line along the inner hose. The inner hose is inserted into the outer hose so that the adhesive is in contact with the inner surface of the outer mantle. An electrical heating resistance (4) is embedded in the adhesive strand (5) to activate it and form an adhesive bond when required.

Description

Die Erfindung bezieht sich auf ein Verfahren zum Herstellen einer aus einem Außen­ schlauch und einem Innenschlauch bestehenden Schlauchkombination nach dem Oberbe­ griff des Anspruches 1.The invention relates to a method for producing an from an outside hose and an inner hose existing hose combination after Oberbe handle of claim 1.

Es ist bereits ein Verfahren zum Herstellen einer aus einem Außenschlauch und einem In­ nenschlauch bestehenden Schlauchkombination nach dem Oberbegriff des Anspruches 1 bekannt. Hierbei wird der Schmelzkleber unmittelbar nach seinem Auftragen mittels Wasser abgekühlt und der Innenschlauch anschließend auf Lager genommen oder sofort in den Außenschlauch eingeführt. Wenn der Außenschlauch und der Innenschlauch miteinander vereinigt sind, wird dem Außenschlauch von außen mit elektrischen Widerständen erzeugte Wärme zugeführt, um den Kleber zu aktivieren (US-PS 4,467,837).It is already a method for producing an outer tube and an inner tube existing hose combination according to the preamble of claim 1 known. Here, the hot melt adhesive is applied immediately after application with water cooled down and the inner hose was then stored or immediately put into the Outer hose inserted. When the outer tube and the inner tube with each other are united, the outer tube is generated from the outside with electrical resistors Heat applied to activate the adhesive (U.S. Patent 4,467,837).

Zum Stand der Technik gehört auch ein weiteres Verfahren zum Herstellen einer aus einem Außenschlauch und einem Innenschlauch bestehenden Schlauchkombination.The prior art also includes a further method for producing one from one Outer hose and an inner hose existing hose combination.

Hier wird auf den Innenschlauch in Längsrichtung ein Schmelzkleber flüssig aufgebracht und der Innenschlauch danach sofort in den Außenschlauch auf eine vorbestimmte Länge eingeführt. Anschließend wird der Außenschlauch so zusammengedrückt, daß der Schmelzkleber mit der Innenseite des Außenschlauches in Berührung kommt. Während des Zusammendrückens wird der Außenschlauch unterstützt (WO 98/21024).Here, a hot melt adhesive is applied to the inner tube in the longitudinal direction and the inner tube immediately thereafter into the outer tube to a predetermined length introduced. Then the outer tube is compressed so that the Hot melt adhesive comes into contact with the inside of the outer tube. While the compression of the outer tube is supported (WO 98/21024).

Aufgabe der Erfindung ist es, das Verfahren nach dem Oberbegriff des Anspruches 1 we­ sentlich zu vereinfachen. The object of the invention is the method according to the preamble of claim 1 to simplify considerably.  

Die gestellte Aufgabe wird durch die im kennzeichnenden Teil des Anspruches 1 angege­ benen Maßnahme gelöst.The task is indicated by the characterizing part of claim 1 measure resolved.

Zweckmäßige weitere Verfahrenschritte sind in den Ansprüchen 2 bis 7 angegeben.Advantageous further process steps are specified in claims 2 to 7.

Nach dem Verfahren nach Anspruch 1 bis 7 hergestellte Schlauchkombinationen sind in den Ansprüchen 8 und 9 angegeben.Hose combinations produced by the method according to claims 1 to 7 are in claims 8 and 9 indicated.

Mehrere Ausführungsbeispiele der Erfindung werden an Hand der Zeichnung beschrieben.Several embodiments of the invention are described with reference to the drawing.

Die Zeichnung zeigtThe drawing shows

in Fig. 1 einen Aufriß einer Schlauchkombination, teilweise im Schnitt undin Fig. 1 is an elevation of a hose combination, partly in section and

in Fig. 2 eine Stirnansicht des Aufrisses nach Fig. 1. FIG. 2 shows an end view of the elevation according to FIG. 1.

In der Zeichnung ist ein Außenschlauch mit 1 bezeichnet, der innen glatt ist und außen wendelförmig verlaufende Wellenberge 1a und Wellentäler 1b aufweist. Der Außen­ schlauch 1 ist durch wendelförmiges Wickeln eines aus thermoplastischem Kunststoff be­ stehenden Profilbandes gebildet, das einen Radialsteg und ein Hakenteil sowie einen den Radialsteg mit dem Hakenteil verbindenden Axialsteg aufweist. Im Zuge des Wickelns übergreift jeweils das Hakenteil eines Wendelganges den Radialsteg eines benachbarten Wendelganges und ist mit diesem verbunden.In the drawing, an outer tube is denoted by 1, which is smooth on the inside and has helical crests 1 a and troughs 1 b on the outside. The outer tube 1 is formed by helically winding a profile strip made of thermoplastic plastic, which has a radial web and a hook part and an axial web connecting the radial web with the hook part. In the course of winding, the hook part of a helical path overlaps and is connected to the radial web of an adjacent helical path.

Im Außenschlauch 1 ist ein Innenschlauch 2 angeordnet, der mittels eines durch Wärme aktivierbaren Schmelzklebers 3 an der Innenseite des Außenschlauches 1 befestigt ist. In den Innenschlauch 2 können auf nicht dargestellte Weise elektrische Leiter untergebracht werden. Der Innenschlauch ist jedoch auch als Durchflußkanal, zum Beispiel für Reini­ gungsflüssigkeiten oder dergleichen, geeignet, während der Außenschlauch 1 beispielswei­ se als Staubsaugerschlauch verwendbar ist.In the outer tube 1, an inner tube 2 is arranged, which is attached to the inside of the outer tube 1 by means of a heat-activatable hot melt adhesive. 3 Electrical conductors can be accommodated in the inner tube 2 in a manner not shown. However, the inner hose is also suitable as a flow channel, for example for cleaning fluids or the like, while the outer hose 1 can be used, for example, as a vacuum cleaner hose.

Bei der Herstellung der aus dem Außenschlauch 1 und dem Innenschlauch 2 bestehenden Schlauchkombination wird der Schmelzkleber 3 längsseits auf den Innenschlauch 2 aufge­ tragen. Anschließend wird der Innenschlauch 2 in den Außenschlauch 1 eingeführt und mit­ tels des Schmelzklebers 3 an der Innenseite des Außenschlauches 1 befestigt. In the manufacture of the hose combination consisting of the outer hose 1 and the inner hose 2 , the hot-melt adhesive 3 is carried up along the inner hose 2 . The inner tube 2 is then inserted into the outer tube 1 and fastened to the inside of the outer tube 1 with the hot melt adhesive 3 .

In den Schmelzkleber 3 wird zur Bildung eines jederzeit aktivierbaren Kleberstranges 5 (nur in Fig. 5 bezeichnet) ein elektrischer Heizwiderstand 4 eingebettet. Der Heizwiderstand 4 kann ein aus einem einfachen, im Querschnitt runden Draht bestehen. Vorteilhafter ist es jedoch, einen gewendelten Draht als Heizwiderstand zu verwenden. Die Einbettung des elektrischen Heizwiderstandes 4 in den Schmelzkleber 3 kann auf verschiedene Weise vorgenommen werden.An electrical heating resistor 4 is embedded in the hot-melt adhesive 3 to form an adhesive strand 5 which can be activated at any time (only designated in FIG. 5). The heating resistor 4 can consist of a simple wire with a round cross section. However, it is more advantageous to use a coiled wire as a heating resistor. The electrical heating resistor 4 can be embedded in the hot-melt adhesive 3 in various ways.

Eine Möglichkeit der Einbettung besteht darin, den Heizwiderstand 4 im Querspritzkopf ei­ nes Extruders mit dem Schmelzkleber 3 zu ummanteln und so den Kleberstrang 5 zu bil­ den. Nach dem Abkühlen kann der Kleberstrang 5 sodann auf Lager genommen werden. Es ist aber auch möglich, den noch heißen Kleberstrang 5 sofort längsseits auf den Innen­ schlauch 2 aufzubringen und den Innenschlauch 2 mit dem auf ihm befestigten, jedoch in­ aktiven, das heißt erkalteten Kleberstrang 5 auf Lager zu nehmen.One way of embedding is to coat the heating resistor 4 in the crosshead ei nes extruder with the hot melt adhesive 3 and so the adhesive strand 5 to bil the. After cooling, the adhesive strand 5 can then be taken into stock. It is also possible, the still hot glue strand 5 immediately alongside the inner tube 2 and to apply, however, the inner tube 2 attached to the to him in active, that is to take stock cooled glue strand fifth

Wenn der Innenschlauch 2 und der Kleberstrang 5 getrennt gelagert sind, müssen beide vor der Vereinigung mit dem Außenschlauch 1 erst zusammengefügt werden. Hierzu wird der Kleberstrang 5 längsseits auf den Innenschlauch 2 aufgelegt und der Heizwiderstand 4 sodann aktiviert, wobei sich der Kleberstrang 5 mit dem Innenschlauch 2 verbindet. Dieser Verfahrenschritt erübrigt sich selbstverständlich, wenn der Innenschlauch 2 und der Klebe­ strang 5 bereits nach dem Verlassen des Querspritzkopfes vereinigt werden.If the inner tube 2 and the adhesive strand 5 are stored separately, both must first be joined together before the union with the outer tube 1 . For this purpose, the adhesive strand 5 is placed lengthwise on the inner tube 2 and the heating resistor 4 is then activated, the adhesive strand 5 connecting to the inner tube 2 . This process step is of course superfluous if the inner tube 2 and the adhesive strand 5 are already combined after leaving the crosshead.

Zum Zusammenfügen des Innenschlauches 2 und des mit ihm vereinigten Kleberstranges 5 ergeben sich ebenfalls zwei Möglichkeiten. Der Innenschlauch 2 kann mit dem vorher durch den Heizwiderstand 5 aktivierten Kleberstrang 5 in den Außenschlauch 1 eingeführt und sodann mit dem Außenschlauch 1 verbunden werden. Das ist aber nur bei relativ kur­ zen Außenschläuchen 1 möglich. Bei längeren Außenschläuchen 1 besteht die Gefahr des vorzeitigen Anklebens des Kleberstranges 5 an der Innenseite des Außenschlauches 1. Es ist aber auch möglich, den Innenschlauch 2 mit dem aufgebrachten, inaktiviertem Kleber­ strang 5 bis in die vorbestimmte Lage in den Außenschlauch 1 einzuführen und sodann erst den Kleberstrang 5 zur Verbindung mit dem Außenschlauch 1 mit dem Heizwiderstand 4 zu aktivieren.There are also two possibilities for joining the inner tube 2 and the adhesive strand 5 combined with it. The inner tube 2 can be inserted with the activated beforehand by the heating resistor 5 glue strand 5 in the outer tube 1 and then connected to the outer hose. 1 But this is only possible with relatively short outer tubes 1 . With longer outer tubes 1 there is a risk of the adhesive strand 5 sticking to the inside of the outer tube 1 prematurely. But it is also possible to insert the inner tube 2 with the applied, inactivated adhesive strand 5 into the predetermined position in the outer tube 1 and then only to activate the adhesive strand 5 for connection to the outer tube 1 with the heating resistor 4 .

Eine weitere Möglichkeit des Einbettens des Heizwiderstandes 4 in den Schmelzkleber 3 besteht darin, zunächst einen ersten Strang des Schmelzklebers 3 auf den Innenschlauch 2 aufzuspritzen und sodann den inaktiven Heizwiderstand 4 aufzulegen und letzteren an­ schließend mit einem weiteren Schmelzkleberstrang zu bedecken. Another possibility of embedding the heating resistor 4 in the hot melt adhesive 3 is to first spray a first strand of the hot melt adhesive 3 onto the inner tube 2 and then to put the inactive heating resistor 4 on and to cover the latter with another hot melt adhesive strand.

Das beschriebene Verfahren hat den Vorteil, daß der Schmelzkleber 3 direkt von innen heraus aktiviert wird und nicht, wie beim Stand der Technik, indirekt von außen über den Außenschlauch, wobei der Außenschlauch unnötig miterwärmt wird. Ein weiterer Vorteil besteht darin, daß bei dem erfindungsgemäßen Verfahren der Außenschlauch 1 mit seinem Eigengewicht den Anpreßdruck auf den Schmelzkleber 3 und den darunter befindlichen In­ nenschlauch 2 erzeugt. Letzterer liegt lediglich mit seiner Unterseite auf einem Träger auf, der zum Einschieben des Innenschlauches 2 in den Außenschlauch 1 verwendet wird und verhindert, daß sich der Innenschlauch 2 durchbiegt. The method described has the advantage that the hot-melt adhesive 3 is activated directly from the inside and not, as in the prior art, indirectly from the outside via the outer hose, the outer hose being unnecessarily heated. Another advantage is that in the method according to the invention, the outer tube 1 with its own weight generates the contact pressure on the hot melt adhesive 3 and the inner tube 2 located underneath it. The latter only rests with its underside on a carrier which is used to push the inner tube 2 into the outer tube 1 and prevents the inner tube 2 from bending.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11

Außenschlauch
outer tube

22

Innenschlauch
inner tube

33

Schmelzkleber
melt adhesive

44

Heizwiderstand
heating resistor

55

Kleberstrang
glue strand

Claims (9)

1. Verfahren zum Herstellen einer aus einem Außenschlauch und einem Innenschlauch bestehenden Schlauchkombination, wobei ein durch Wärme aktivierter Schmelzkleber (3) in Längsrichtung auf den Innenschlauch (2) aufgetragen und dieser bis in seine Be­ stimmungslage in den Außenschlauch (1) eingeführt und danach der Schmelzkleber (3) mit der Innenseite des Außenschlauches (1) in Berührung gebracht wird, dadurch ge­ kennzeichnet, daß zur Bildung eines jederzeit aktivierbaren Kleberstranges (5) in den Schmelzkleber (3) ein elektrischer Heizwiderstand (4) eingebettet wird.1. A method for producing a hose combination consisting of an outer hose and an inner hose, wherein a heat-activated hot melt adhesive ( 3 ) is applied in the longitudinal direction to the inner hose ( 2 ) and this is inserted into its position in the outer hose ( 1 ) and then the Hot melt adhesive ( 3 ) is brought into contact with the inside of the outer tube ( 1 ), characterized in that an electrical heating resistor ( 4 ) is embedded in the hot melt adhesive ( 3 ) to form an adhesive strand ( 5 ) which can be activated at any time. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Heizwiderstand (4) in einem Querspritzkopf eines Extruders mit dem Schmelzkleber (3) ummantelt wird.2. The method according to claim 1, characterized in that the heating resistor ( 4 ) is coated in a crosshead of an extruder with the hot melt adhesive ( 3 ). 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Schmelzkleber (3) samt dem von ihm ummantelten, aber inaktiv gehaltenen Heizwiderstand (4) sofort nach dem Verlassen des Querspritzkopfes auf den Innenschlauch (2) aufgebracht wird.3. The method according to claim 1 and 2, characterized in that the hot melt adhesive ( 3 ) together with the jacket, but kept inactive heating resistor ( 4 ) is applied to the inner tube ( 2 ) immediately after leaving the crosshead. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Schmelzkleber (3) mit­ tels des von ihm umschlossenen Heizwiderstandes (4) zur Verbindung mit dem Innen­ schlauch (2) aktiviert wird.4. The method according to claim 1, characterized in that the hot melt adhesive ( 3 ) with means of the heating resistor enclosed by it ( 4 ) for connection to the inner tube ( 2 ) is activated. 5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zunächst ein erster Strang des Schmelzklebers (3) auf den Innenschlauch (2) aufgespritzt, sodann der inaktive Heizwiderstand (4) auf den noch in der Schmelze befindlichen ersten Strang aufge­ bracht und schließlich auf den Heizwiderstand (4) und den bereits aufgebrachten ersten Strang des Schmelzklebers (3) ein weiterer, sowohl den Heizwiderstand (4) als auch den bereits aufgebrachten ersten Strang des Schmelzklebers (4) bedeckender, zweiter Strang des Schmelzklebers (3) aufgebracht wird.5. The method according to claim 1, characterized in that first a first strand of the hot melt adhesive ( 3 ) is sprayed onto the inner tube ( 2 ), then the inactive heating resistor ( 4 ) is brought up to the first strand still in the melt and finally onto the Heating resistor ( 4 ) and the already applied first strand of hot melt adhesive ( 3 ), a further, second strand of hot melt adhesive ( 3 ) covering both the heating resistor ( 4 ) and the already applied first strand of hot melt adhesive ( 4 ) is applied. 6. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der bereits mit dem Innenschlauch (2) verbundene Schmelzkleber (3) unmittelbar vor dem Einbringen des Innenschlauches (2) in den Außenschlauch (1) durch den Heizwiderstand (4) aktiviert wird.6. The method of claim 1 to 3, characterized in that the already connected with the inner tube (2) hot-melt adhesive (3) is activated in the outer tube (1) through the heating resistor (4) immediately before the introduction of the inner tube (2). 7. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der bereits mit dem Innenschlauch (2) verbundene Schmelzkleber (3) erst in der Bestimmungslage des In­ nenschlauches (2) zur Verbindung des Innenschlauches (2) mit dem Außenschlauch (1) durch den Heizwiderstand (4) aktiviert wird.7. The method of claim 1 to 3, characterized in that the already connected with the inner tube (2) hot-melt adhesive (3) until the determination position of the In nenschlauches (2) for connecting the inner tube (2) with the outer tube (1) by the heating resistor ( 4 ) is activated. 8. Nach dem Verfahren nach Anspruch 1 bis 7 hergestellte Schlauchkombination, dadurch gekennzeichnet, daß der Heizwiderstand (4) aus einem einfachen, im Querschnitt runden Draht besteht.8. Hose combination produced by the method according to claims 1 to 7, characterized in that the heating resistor ( 4 ) consists of a simple wire with a round cross section. 9. Nach dem Verfahren nach Anspruch 1 bis 7 hergestellte Schlauchkombination, dadurch gekennzeichnet, daß der Heizwiderstand (4) aus einem gewendelten Draht besteht.9. Hose combination produced by the method according to claims 1 to 7, characterized in that the heating resistor ( 4 ) consists of a coiled wire.
DE10127130A 2001-06-05 2001-06-05 Combination hose, has a heat setting adhesive applied to the inner hose surface, as a strand with an embedded electrical resistance heater to activate the adhesive and bond the inner hose to the inner surface of the outer hose Withdrawn DE10127130A1 (en)

Priority Applications (1)

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DE10127130A DE10127130A1 (en) 2001-06-05 2001-06-05 Combination hose, has a heat setting adhesive applied to the inner hose surface, as a strand with an embedded electrical resistance heater to activate the adhesive and bond the inner hose to the inner surface of the outer hose

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DE10127130A DE10127130A1 (en) 2001-06-05 2001-06-05 Combination hose, has a heat setting adhesive applied to the inner hose surface, as a strand with an embedded electrical resistance heater to activate the adhesive and bond the inner hose to the inner surface of the outer hose

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DE10127130A1 true DE10127130A1 (en) 2002-12-12

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DE10127130A Withdrawn DE10127130A1 (en) 2001-06-05 2001-06-05 Combination hose, has a heat setting adhesive applied to the inner hose surface, as a strand with an embedded electrical resistance heater to activate the adhesive and bond the inner hose to the inner surface of the outer hose

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1683844A1 (en) * 2005-01-25 2006-07-26 Uponor Innovation Ab Joining metal and plastics surfaces
WO2008035484A1 (en) 2006-09-21 2008-03-27 Tigers Polymer Corporation Process, and apparatus, for producing flexible hose with tube disposed thereinside
CN102317666A (en) * 2009-11-19 2012-01-11 泰贺斯聚合物股份有限公司 Flexible hose and manufacturing method for same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1683844A1 (en) * 2005-01-25 2006-07-26 Uponor Innovation Ab Joining metal and plastics surfaces
WO2008035484A1 (en) 2006-09-21 2008-03-27 Tigers Polymer Corporation Process, and apparatus, for producing flexible hose with tube disposed thereinside
EP2065168A1 (en) * 2006-09-21 2009-06-03 Tigers Polymer Corporation Process, and apparatus, for producing flexible hose with tube disposed thereinside
EP2065168A4 (en) * 2006-09-21 2012-07-04 Tigers Polymer Process, and apparatus, for producing flexible hose with tube disposed thereinside
CN102317666A (en) * 2009-11-19 2012-01-11 泰贺斯聚合物股份有限公司 Flexible hose and manufacturing method for same
CN102317666B (en) * 2009-11-19 2015-03-11 泰贺斯聚合物股份有限公司 Flexible hose and manufacturing method for same
EP2378174A4 (en) * 2009-11-19 2016-11-23 Tigers Polymer Flexible hose and manufacturing method for same

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