DE2619935C3 - Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen - Google Patents

Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen

Info

Publication number
DE2619935C3
DE2619935C3 DE2619935A DE2619935A DE2619935C3 DE 2619935 C3 DE2619935 C3 DE 2619935C3 DE 2619935 A DE2619935 A DE 2619935A DE 2619935 A DE2619935 A DE 2619935A DE 2619935 C3 DE2619935 C3 DE 2619935C3
Authority
DE
Germany
Prior art keywords
pressure
hose
jaws
welding
pressure jaws
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
DE2619935A
Other languages
English (en)
Other versions
DE2619935B2 (de
DE2619935A1 (de
Inventor
Josef 7022 Leinfelden Drabinsky
Helmut Dipl.-Ing. 7000 Stuttgart Feinle
Bernhard 7300 Esslingen Leidig
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE2619935A priority Critical patent/DE2619935C3/de
Publication of DE2619935A1 publication Critical patent/DE2619935A1/de
Publication of DE2619935B2 publication Critical patent/DE2619935B2/de
Application granted granted Critical
Publication of DE2619935C3 publication Critical patent/DE2619935C3/de
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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or profiles
    • 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
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0014—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping tubes or blown tubular films
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • 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
    • B29L2023/005—Hoses, i.e. flexible

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen, J5 mit zwei relativ zueinander bewegbaren Druckbacken, zwischen denen das örtlich plastifizierte Schlauchstück einklemmbar ist.
Es sind Vorrichtungen zum Verschweißen von Schläuchstücken aus thermoplastischem Kunststoff bekannt, die im allgemeinen aus zwei "beheizten, gegeneinander bewegbaren Druckbacken bestehen. Das Schlauchstück wird zwischen die Druckbacken geschoben, danach werden die Druckbacken gegeneinander bewegt, wobei das eingeklemmte Schlauchstück durch die aufgeheizten Druckbacken auf die erforderliche Schweißtemperatur gebracht und verschweißt wird.
Ein nach einem bekannten Verfahren verschweißtes Schlauchstück mißt an der Schweißstelle etwa das Eineinhalbfache des ursprünglichen Schlauchdurchmessers (-γ-) · Diese Verbreiterung ist jedoch bei einer Verwendung als Dämpfungselement in einer Kraftstoffleitung ungeeignet, weil sich das Dämpfungselement dem Innendurchmesser der Kraftstoffleitung innerhalb gewisser Toleranzen anpassen bzw. bewegen muß. Außerdem werden bei einer Verwendung eines verschweißten Schlauchstückes als Dämpfungselement an die Schweißnaht bezüglich Festigkeit hohe Ansprüche gestellt. bo
Aufgabe der Erfindung ist es, mittels einer Vorrichtung die Enden eines gegen äußeren Unterdruck formstabilen Schlauches derart luftdicht zu verschweißen, daß die Schweißnähte den Durchmesser des ursprünglichen Schlauchstückes nicht überragen und die fer> Schweißnaht der erforderlichen Druckbeanspruchung standhält.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß einer der Druckbacken eine Rinne mit der Breite des Schlauches aufweist und der andere Backen in die Rinne bewegbar ist
Dadurch kann das in der Rinne liegende und durch Wanne plastifizierte Schlauchstück beim Gegeneinanderbewegen der Druckbacken seitlich nicht wegfließen; die in den begrenzten Raum zwischen den Druckbacken eingeschlossene Kunststoffmasse wird vielmehr in den lichten Raum des Schlauches verdrängt, wo sie nach <iem Abkühlen erstarrt
Ferner können die Stirnflächen des Druckbackens neben der Rinne als Anschlag für den anderen Druckbacken ausgebildet werden.
Um das Abfließen des plastischen Kunststoffes während des Verschweißens (Gegeneinanderbewegen der Druckbacken) in die lichte Schlauchweite zu begünstigen, können die Druckbacken im Anschluß an die Druckflächen für die Schweißnaht halbkreisförmige Ausnehmungen aufweisen, die konisch in die Druckfläche der Schweißbacken übergehen.
Das Abfließen von plastischem Kunststoff in das Schlauchinnere bewirkt u. a. eine wesentliche Verfestigung der Schweißnaht
Darüber hinaus können die Druckflächen der Druckbacken zwischen sich einen Hohlraum mit rechteckigem Querschnitt begrenzen.
Durch den rechteckigen Querschnitt wird die Dicke der Schweißnaht festgelegt. Sie ist vorzugsweise gleich der doppelten Wandstärke des Schlauches. Eine zu dünne Schweißnaht, wis sie durch herkömmliches Verschweißen entsteht, birgt die Gefahr eines Bruches entlang derselben, sobald das verschweißte Schlauchstück hohen Druckbelastungen ausgesetzt wird.
Um eine bessere Führung der gegeneinander bewegbaren Druckbacken zu gewährleisten, können schließlich die Wände der Rinne senkrecht sein.
Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles soll die Erfindung näher erläutert werden. Es zeigt
F i g. 1 einen Querschnitt durch den Schweißstempel in eingefahrenem Zustand,
F i g. 2 eine Seitenansicht der Fig.! und
F i g. 3 — 5 eine Schweißvorrichtung im Prinzip.
Der in den Fig. 1 und 2 dargestellte Schweißstempel besteht aus den Druckbacken 1 und 2, wobei der eine Druckbacken zwei parallel zueinander angeordnete Stirnflächen 3, 4 aufweist, welche eine Rinne 5, 6 begrenzen, in welche das eigentliche Druckteil 7 eingreift.
Die Druckbacken 1, 2 sind so ausgelegt, daß diese in der Schweißstellung (im eingefahrenen Zustand) an den Stirnflächen 3,4 aufliegen, wobei jedoch in der Rinne 5, 6 ein offener Spalt 8 mit einem etwa rechteckigen Querschnitt (Druckfläche) gebildet wird. Im Anschluß an die Druckflächen für die Schweißnaht sind halbkreisförmige Ausnehmungen 10,11 vorgesehen, die mit einer konischen Wandung 12,13 in die Druckfläche der Druckbacken 1,2 übergehen.
Die eigentliche Vorrichtung (Fig.3 —5) besteht aus zwei Schlauchführungen 14 und 15, wobei die Führung 14 aus einem Material mit geringem Wärmeleitvermögen sein kann. Ein axial verschiebbares Heizelement 16, welches bei Offenstellung des Schweißstempels zwischen die Druckbacken 1 und 2 gefahren werden kann, erwärmt das Schlauchstück 9 auf die erforderliche Schweißtemperatur. Nach Erreichen der Schweißtemperatur fährt das Heizelement 16 zur Seite, so daß es um die Führung 14 zu liegen kommt, die den Schlauch
während der Scnweißdauer gegen Wärme abschirmt
Nach dem Verschieben des Heizelementes 16 schließen sich die Druckbacken 1, 2 des Schweißstempels bis die Stirnflächen 3, 4, fest aufeinanderliegen. Beim Zusammenpressen der Druckbacken 1, 2 verschweißt die Schlauchwandung, die Schweißnaht erhält die gewünschte, durch den Schweißstempel festgelegte Form. Das überflüssige, sich im plastischen Zustand befindliche Material wird hierbei in das Jnnere des Schlauches 9 verdrängt, wo es zu einem Pfropfen erstarrt, so daß eine feste und absoiüt dichte Verschweißung gebildet wird. Währenddes Schweißens bzw. während der Abkühlungszeit wird die vorhergehende Schweißnaht durch ein Messer 17 derart
getrennt, daß mit einer einzigen Schweißnaht jeweils zwei Schlauchstückenden verschweißt sind. Um die Schweißzeit abzukürzen, können die Druckbacken 1, 2 des Schweißstempels durch Kühlwasser gekühlt werden.
Nach genügender Abkühlung der Schweißnaht fahren die Druckbacken 1, 2 des Schweißstempels in die Ausgangsstellung zurück, der Schlauch 9 wird entsprechend nachgeschoben, während das Heizelement 16 wieder in die Heizstellung gebracht wird.
Die Druckbacken 1,2 können zum Verschweißen von Schlauchenden mit allen bekannten Schweißverfahren, wie z. B. dem Hochfrequenz-, Induktion-, Ultraschallverfahren, verwendet werden.
-Hierzu 1 Blatt Zeichnungen

Claims (5)

26^9 Patentansprüche:
1. Vorrichtung zum Querschweißen von Schlauch-Stücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen, mit zwei relativ zueinander bewegbaren Druckbacken, zwischen denen das örtlich plastifizierte Schlauchstück einklemmbar ist, dadurch gekennzeichnet, daß einer der Druckbacken (1,2) eine Rinne (5,-6) mit der Breite des Schlauches aufweist und der andere Backen in die Rinne bewegbar ist
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Stirnflächen (3, 4) des Druckbakkens (2) neben der Rinne (5,6)_als Anschlag für den la anderen Druckbacken (1) ausgebildet sind.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Druckbacken (1, 2) im Anschluß an die Druckflächen für die Schweißnaht halbkreisförmige Ausnehmungen (10,11) aufweisen, die konisch in die Druckfläche der Druckbacken (1,
2) übergehen.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Druckflächen der Druckbacken (1, 2) zwischen sich einen Hohlraum mit rechteckigem Querschnitt begrenzen.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Wände der Rinne (5,6) senkrecht sind.
30
DE2619935A 1976-05-06 1976-05-06 Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen Expired DE2619935C3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2619935A DE2619935C3 (de) 1976-05-06 1976-05-06 Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2619935A DE2619935C3 (de) 1976-05-06 1976-05-06 Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen

Publications (3)

Publication Number Publication Date
DE2619935A1 DE2619935A1 (de) 1977-11-17
DE2619935B2 DE2619935B2 (de) 1978-04-06
DE2619935C3 true DE2619935C3 (de) 1978-11-16

Family

ID=5977162

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2619935A Expired DE2619935C3 (de) 1976-05-06 1976-05-06 Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen

Country Status (1)

Country Link
DE (1) DE2619935C3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9402035A (nl) * 1994-12-02 1996-07-01 Shannon Bv Werkwijze voor het aanbrengen van afdichtingsranden in panelen van thermoplastisch materiaal en een samenstel daarvoor.
US6531098B1 (en) * 1998-10-26 2003-03-11 Drummond Scientific Company Disposable preselected-volume, capillary pipette device having an integrally-formed bulbous end and method of taking blood samples using the device
EP4084948A4 (de) * 2019-12-31 2024-01-03 Fresenius Medical Care Deutschland GmbH Tubenverschluss mit abziehdichtung

Also Published As

Publication number Publication date
DE2619935B2 (de) 1978-04-06
DE2619935A1 (de) 1977-11-17

Similar Documents

Publication Publication Date Title
DE2923205C2 (de) Verfahren und Vorrichtung zum nahtlosen Verbinden von thermoplastischen Kunststoffhohlprofilen
EP0155548B1 (de) Vorrichtung zum Schweissen von Folien
CH272636A (de) Kontinuierliches elektrisches Stumpfnahtschweissverfahren zur Herstellung von Rohren und Einrichtung zur Durchführung dieses Verfahrens.
DE2553274A1 (de) Induktionsheizeinrichtung
DE2619935C3 (de) Vorrichtung zum Querverschweißen von Schlauchstücken aus thermoplastischem Kunststoff, insbesondere von vakuumfesten Schläuchen
EP2243567B1 (de) Vorrichtung zur Herstellung von quer zu ihrer Längsrichtung gewellten Rohren
DE2949982C2 (de) Abbrennstumpfschweißverfahren für Walzstahl
DE69213319T2 (de) Vorrichtung und Verfahren zur Verformung eines Rohres
CH698798B1 (de) Verfahren und Vorrichtung zum Verbinden zweier Leitungen aus thermoplastischem Kunststoff durch Verschweissen.
CH368840A (de) Verfahren und Vorrichtung zum Umhüllen eines Kabels mit einem Metallmantel
DE3112797A1 (de) Verfahren und vorrichtung zum kontinuierlichen vulkanisieren von aus elastomerem material gebildeten schlaeuchen
DE2163731A1 (de) Vorrichtung zur rollnahtdichtschweissung der seitenraender von plattenradiatoren
DE3744933C2 (de) Vorrichtung zum Induktionserhitzen und Druckverschweißen zweier Werkstücke
DE1942631C (de) Verfahren zum Schweißen dicker Werkstücke
DE2758134C2 (de) Verfahren zur Herstellung von Wärmetauscherrohre!) mit inneren und äußeren Längsrippen
DE490914C (de) Vorrichtung zum elektrischen Stumpfschweissen von geschlitzten Rohren
DE2254189C2 (de) Vorrichtung zum Verschweißen von thermoplastischen Kunststoffprolien
DE2621799A1 (de) Verfahren und vorrichtung zum trennschweissen eines kunststoffstreifens
DE2308646C3 (de) Vorrichtung zum kontinuierlichen Verlöten der Längsnaht eines Rohrs
DE7606386U1 (de) Vorrichtung zum aufweiten von rohrenden
DE4215920A1 (de) Verfahren und Vorrichtung zum Biegen von Kunststoffrohren
DD242779A1 (de) Verfahren und anordnung zum verschweissen thermoplastischer werkstoffe
DE1690594C (de) Verfahren zum Längsnahtschweißen von in Formgerüsten zu einem Schlitzrohr vorgeformtem Stahlband
EP0201479A2 (de) Vorrichtung zum Verschweissen zweier einander übergreifender Rohrteile aus Kunststoff
DE3211289A1 (de) Vorrichtung zur herstellung von rohrfoermigen isolierschalenlaengen

Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8320 Willingness to grant licences declared (paragraph 23)
8330 Complete disclaimer