DE2520218A1 - Vorrichtung zum kontinuierlichen ueberlappungsverschweissen von thermoplastischen kunststoff-folien oder-tafeln - Google Patents

Vorrichtung zum kontinuierlichen ueberlappungsverschweissen von thermoplastischen kunststoff-folien oder-tafeln

Info

Publication number
DE2520218A1
DE2520218A1 DE19752520218 DE2520218A DE2520218A1 DE 2520218 A1 DE2520218 A1 DE 2520218A1 DE 19752520218 DE19752520218 DE 19752520218 DE 2520218 A DE2520218 A DE 2520218A DE 2520218 A1 DE2520218 A1 DE 2520218A1
Authority
DE
Germany
Prior art keywords
guide frame
roller
sheets
thermoplastics
foils
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
DE19752520218
Other languages
English (en)
Other versions
DE2520218C2 (de
Inventor
Heiner I Hammer
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.)
Schlegel Engineering GmbH
Original Assignee
Schlegel Engineering 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 Schlegel Engineering GmbH filed Critical Schlegel Engineering GmbH
Priority to DE2520218A priority Critical patent/DE2520218C2/de
Priority to GB2182475A priority patent/GB1465878A/en
Publication of DE2520218A1 publication Critical patent/DE2520218A1/de
Application granted granted Critical
Publication of DE2520218C2 publication Critical patent/DE2520218C2/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
    • 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
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • 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
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
    • 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
    • B29C65/1403—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 characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [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
    • 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
    • B29C65/1429—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 characterised by the way of heating the interface
    • B29C65/1432—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 characterised by the way of heating the interface direct heating of the surfaces to be joined
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/70—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
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—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 mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/865—Independently movable welding apparatus, e.g. on wheels
    • B29C66/8652—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling
    • B29C66/86521—Independently movable welding apparatus, e.g. on wheels being pushed by hand or being self-propelling being self-propelling
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91216—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods enabling contactless temperature measurements, e.g. using a pyrometer
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
    • B29C66/91643—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
    • B29C66/91645—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B29C66/92431—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power the pressure, the force or the mechanical power being kept constant over time
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges

Landscapes

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

Description

  • Vorrichtung zum kontinuierlichen Überlappungsverschweißen von thermoplastischen Kunststoff-Folien oder -Tafeln Zusatz zu Patent ... (Patentanmeldung P 24 26 154.9-10) Das Hauptpaten bezieht sich in Anspruch 8 auf eine Vorrichtung zum Kontinuierlichen Überlappungsverschweißen von thermoplastischen Kunststoff-Folien oder -Tafeln, die an einem Fahrungsgesteil eine Einrichtung zum Erhitzen der zu verbindenden Oberflächen, einen Extruder mit einer zwischen die zu verbindenen Oberflächen geführten Düse für ein Zusatzmaterial und eine als Andruckrolle ausgebildete Andruckeinrichtung aufweist. Eine solche Vorrichtung ist in erster Linie zum Herstellen großer Nahtlangen vorgesehen, die hauflag an der Verlegestelle hergestellt werden müssen, an der eine absolut ebene Unterlage nicht zur Verfügung steht.
  • Der Lrfindung liegt Gie Aufgabe zugrunde, eine Vorrichtung der eingange genannten Art so auszugestalten, daß mit einiacijsten Mitteln ein auch bei unebener Bodeufläche konstanter Druck der Andruekrolle gewährleistet ist.
  • Die erfindungsgemäße Lösung besteht darin, d das Führungsgestell auf drei Rädern fahrbar ist, von denen eines die Andruckrolle bildet.
  • Eine dreirädrige Stützung des Fuhrungsgesteils gewahr-Leistet auf einer im Mittel/horizontalen, wenn aucti unebenen, Flaclle eine ständige Auflage sämtiieker Räder auf der Unterstützungsfläche und bei nicht zu hoch liegendem Schwerpunkt auch eine etwa gleichgbleibende Stutzkraft Jeder Rollo. Die Verwendung einer dieser Rollen als Andruckroiie tur die Schweißnaht ist daher ein außerordentlich einfaches Mittel, auch bei unebenem Boden di@ gewunschte @onstanz der Schweißnantpressung zu ernalten.
  • Zweckmäßigerweise ist die Andruckrolle fenkbar nahe dem einen Ende des langgestreckten Fahrgestells angeordnet, wahrend die beiden anderen Räder nahe dem anderen Ende angeordnet sind. Die Lenkbarkeit gewahrleistet, daß die Andruekrolle mit der gewünschten Genauigkeit auf der Naht geführt werden kann, während der verhältnismäßig große Abstand der Andruckrolle von den übrigen adern, der durch die gegenseitige Anordnung der Räder am Fanrgesteil vorgegeben ist, die Konstanz der von der Andruckrolle verittelten Kraft auch bel Abweichungen der Unterstützungsiltäche von der Horizontalrichtung fordert.
  • Die Erfindung wird im folgenden näher unter Bezugnahme auf die Zeichnung erläutert, die ein vorteilhaftes Ausführungsbeispiel in einer schematischen Seitenansicht Veranschaulicht.
  • Das Schweißgerät umfaßt einen Fahrzeugrahmen 20, an dessen hinterem Ende die Räder 22 uB eine starre Achse gelagert sind. Sie sind von einem nicht gezeigten Motor kontinuierlich regelbar antreibbar. Bei 28 ist an dem Fahrzeugrahmen 20 ein Hilfsrahmen 29 angelenkt, an dessen vorderem Ende das Vorderrad 9 gelagert ist, das mittels einer Lenkstange 23 lenkbar ist. Das vordere Ende des Rahmens 20 ruht höhenverstellbar über eine Spindel 27 auf dem vorderen Ende des Hilfsrahmens 29.
  • Auf dem Fahrzeugrahmen befinden sic die wesentlichen Maschinen des Geräts, die in der Zeichnung nur schematisch angedeutet sind, nämlich insbesondere ein Extruder, ein Heißiuftgebläse, Regeleinrichtungen, der bereits erwähnte Motor und gegebenenfalls weitere Vorrichtungen. Die Gewichtsverteilung ist so getroffen, daß das als Andruckeinrichtung verwendete Vorderrad 9 des Geräts das gewünschte Gewicht auf die Schweißnaht überträgt, so daß sich eine Pressung von beispielsweise 1,5 kg/cm2 ergibt.
  • Der Längsabstand der Räder 22 und 9 ist mindestens doppelt so groß wie der Querabstand der Räder 22 voneinander. Dank dieses großen Radstandes bleibt der Druck unter der Andruckrolle 9 im wesentlichen unabhängig von etwaigen Bodenunebenheiten konstante Wenn die von dem Vorderrad 9 gebildete, wenige Zentimeter lange Prefistrecke nicht ausreicht, können hinter dem Vorderrad 9 noch weitere Preßeinrichtungen vorgesehen werden.
  • An dem Hilfsrahmen ist ein sich vor dem Vorderrad 9 erstreckender Fortsatz 24 angelenkt, der zwar vertikal beweglich ist, um Bodenunebenheiten nachgeben zu können, aber seitlich starr am Fahrzeugrahmeh geführt ist. Das vordere Ende des Fortsatzes 24 trägt einen nach oben und unten wirkenden Infrarotstrahler 5, der an Rollen 51 fahrbar Ist, die auch den erfexderlichen Abstand der miteinander zu verbindenden, überlappenden Oberflächen sichern.
  • Vor dem Infrarotstrahler 5 ragt ein Temperaturmeßgerät 13 zwischen die zu verbindenden Oberflächen. Hinter dem Intrarotstrahler befinden sich zwei Ilulßluftdusen 12. Zwischen den Heißluftdüsen 12 und dem Vorderrad 9 befindet sich die Extruderdüse 6, die nicht an dem Hilfsrahmen 24 sondern an deui I'ahiLeugrahmen 20 befestigt ist und mit diesem mittels der Spindel 27 höhenverstellbar ist.

Claims (2)

Patentansprüche
1. Vorrichtung zum kontinuierlichen Überlappungsverschweißen von thermoplastischen Kunststoff-Folien oder -Tafeln, die nach Anspruch 8 des Patents ...
(Patentanmeldung P 24 26 154.9-16) an einem Fuhrungsgestell eine Einrichtung zum Erhitzen der zu verbindenden Oberflächen, einen Extruder mit einer zwischen die zu verbindenen Oberflächen geführten Düse für ein Zusatzmaterial and eine als Andruckteile ausgebildete Andruckeinrichtung aufweist, dadurch g ek e n n z e i c h n e t, daß das Fuhrungsgestell auf drei Radern fahrbar ist, von denen eines die Andruckrolle bildet.
2. Vorrichtung nach Anspruch 1, dadurch g e k e n n -z e i c h n e t, daß die Andruckrolle leukbal nahe dem einen Ende des Langgestreckten Fahrgestells angeordnet ist, während die beiden anderen Rader nahe dem anderen Ende angeordnet sind.
L e e r s e i t e
DE2520218A 1974-05-29 1975-05-07 Vorrichtung zum kontinuierlichen Verschweißen von großflächig und auf ggf. unebener Fläche ausgelegten thermoplastischen Kunststoff-Folien oder -Tafeln Expired DE2520218C2 (de)

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DE2520218A DE2520218C2 (de) 1975-05-07 1975-05-07 Vorrichtung zum kontinuierlichen Verschweißen von großflächig und auf ggf. unebener Fläche ausgelegten thermoplastischen Kunststoff-Folien oder -Tafeln
GB2182475A GB1465878A (en) 1974-05-29 1975-05-21 Process for the continuous overlap welding of thermo-plastic sheets or panels

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DE2520218A DE2520218C2 (de) 1975-05-07 1975-05-07 Vorrichtung zum kontinuierlichen Verschweißen von großflächig und auf ggf. unebener Fläche ausgelegten thermoplastischen Kunststoff-Folien oder -Tafeln

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617642A1 (de) * 1985-10-12 1987-04-16 Pfaff Ind Masch Schweissvorrichtung fuer folienbahnen
EP0258984A2 (de) * 1986-09-03 1988-03-09 UNIROYAL CHEMICAL COMPANY, Inc. Verfahren zum Schweissen von thermoplastischen Folien

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Publication number Priority date Publication date Assignee Title
US3166458A (en) * 1961-08-24 1965-01-19 Union Carbide Corp Large area sheet sealing
CH465197A (de) * 1967-08-25 1968-11-15 Mey Kg Maschf Mafell Fahrbares Schweissgerät zum Fugenverschweissen von Kunststoffplatten oder -bahnen mit elektromotorischem Antrieb

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US3166458A (en) * 1961-08-24 1965-01-19 Union Carbide Corp Large area sheet sealing
CH465197A (de) * 1967-08-25 1968-11-15 Mey Kg Maschf Mafell Fahrbares Schweissgerät zum Fugenverschweissen von Kunststoffplatten oder -bahnen mit elektromotorischem Antrieb

Non-Patent Citations (1)

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Title
DE-Zeitschrift: "Kunststoffe", 61 (1971), S. 108-112 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617642A1 (de) * 1985-10-12 1987-04-16 Pfaff Ind Masch Schweissvorrichtung fuer folienbahnen
EP0258984A2 (de) * 1986-09-03 1988-03-09 UNIROYAL CHEMICAL COMPANY, Inc. Verfahren zum Schweissen von thermoplastischen Folien
EP0258984A3 (en) * 1986-09-03 1988-10-12 Uniroyal Chemical Company, Inc. Method for heat sealing thermoplastic membranes

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