DE1629244A1 - Method and device for joining thermoplastic films by hot-gas welding - Google Patents
Method and device for joining thermoplastic films by hot-gas weldingInfo
- Publication number
- DE1629244A1 DE1629244A1 DE19661629244 DE1629244A DE1629244A1 DE 1629244 A1 DE1629244 A1 DE 1629244A1 DE 19661629244 DE19661629244 DE 19661629244 DE 1629244 A DE1629244 A DE 1629244A DE 1629244 A1 DE1629244 A1 DE 1629244A1
- Authority
- DE
- Germany
- Prior art keywords
- welding
- pressure roller
- pressure
- profile
- hot
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims description 52
- 229920001169 thermoplastic Polymers 0.000 title claims description 16
- 239000004416 thermosoftening plastic Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 12
- 238000005304 joining Methods 0.000 title claims description 4
- 239000011888 foil Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000036316 preload Effects 0.000 claims 1
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
Classifications
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- 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
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt 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
- B29C65/10—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
-
- 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
- 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
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
- B29C65/5071—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and being composed by one single element
-
- 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
- B29C66/80—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
- 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
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the tape handling mechanisms, e.g. using vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
Verfahren und Vorrichtung zum Verbinden von Thermoplastfolien durch Hei#gasschwei#en Die Erfindung betrifft ein Verfahren und eine Vorriohtung zum maschinellen Verbinden von Thermoplastfolien, vornehmlich im aufgeklebten Zustand. Method and device for joining thermoplastic films by Hot gas welding The invention relates to a method and a device for machine welding Joining of thermoplastic foils, mainly in the glued-on state.
Verfahren und vorrichtungen zum Verschwei#en, vornehmlich aufgeklebter weicher und harter Thermoplastfolien sind bekannt.Methods and devices for welding, mainly glued on soft and hard thermoplastic films are known.
Bei weichen Folien ist es am weitesten verbreitet, die Enden zu überlappen. Die Überlappungsflächen werden durch ein zwischen sie geführtes Heizelement oder durch Einfilhren einer entsprechend gestalteten Heißgasdüse erwärmt und dann durch Druck, meist durch Fingerdruok des Schwei#ers, verbunden. Diese Arbeitsweise stellt hohe physisohe Anforderungen an den Schweißen.With soft films, it is most common to overlap the ends. The overlapping areas are created by a heating element or heated by introducing a correspondingly designed hot gas nozzle and then through Pressure, usually connected by the welder's finger pressure. This way of working represents high physical demands on welding.
Da eine Prüfung dieser Schwei#nähte auf Dichtheit nicht mbglich ist und die Verbindung ausschlie#lich diskontinuierlich durch Handarbeit erfolgen muß, ist eine ausreichende Gütesicherheit nioht gegeben, wodurch diese Arbeit des Schweißens als sehr unproduktiv anzusehen ist. Hinzu kommt, daß es in der Kehle einer Uberlappung nie gelingt, eine Folie vollständig aufzukleben.Since it is not possible to check these weld seams for leaks and the connection must only be made discontinuously by hand, a sufficient quality assurance is not given, whereby this work of welding is to be regarded as very unproductive. In addition, there is an overlap in the throat you never succeed in sticking a film on completely.
Es entsteht ein Hohlraum unter der Folie, der z.B. bei Thermoplastfolienauskleidungen zum Zwecke des Korrosionsschutzes in vielen Fällen nicht erwünscht ist.A cavity is created under the film, which is the case, for example, with thermoplastic film linings is not desirable in many cases for the purpose of corrosion protection.
Demgegenüber entspricht die Methode, die Folien stumpf zu stoßen, dann mittels Heißgas mit einer entsprechenden S'chweißschnur oder einem Schwei#stab den Folienstoß auszuschweißen und nach Abarbeitung dieser schwei#naht eine Flachlasche aufzuschweißen, den GUteforderungen an eine Schweißverbindung z.B. bei Thermoplastfolienauskl@idungen zum Zweoke des Korrosionsschutzes.In contrast, the method of butt jointing the foils corresponds to then by means of hot gas with an appropriate welding cord or a welding rod weld out the foil joint and after processing this weld a flat tab to be welded on, meeting the requirements of a welded joint, e.g. for thermoplastic film notchings for the purpose of corrosion protection.
Jedoch ist diese Verbindungsmethode nooh zeitaufwendiger als die erstgenannte, weshalb sie in der Praxis nur wenig angewendet wird. Die Ausuhrung der Methode geschieht ebenfalls von Hand unter Zuhilfenahme von Handdruckrollen.However, this connection method is nooh more time-consuming than the first one, which is why it is rarely used in practice. The execution of the method happens also by hand with the help of hand pressure rollers.
Bekannt ist ferner ein weiteres Verfahren und eine Einrichtung zum kontinuierlichen Verschweißen von vornehmlich aufgeklebten Thermoplastfolien nach dem Heizelementprinsip. In der Nahtfuge wird eine beheizte lamelle entlanggefu@ @t, hinter der ein flüssiges Schweißmittel unter Druck in die @@wärmte Nahtiuge eingebraoht wird.Also known is a further method and a device for continuous welding of mainly glued-on thermoplastic films the heating element principle. A heated lamella is inserted into the seam joint. @t, behind which a liquid welding agent under pressure into the @@ warmed seam is brewed.
Die Anwendung dieses Verfahrens erfordert eine genaue Nahtfuge, was unter Montagebedingungen schwer zu verwirklichen ist. Außerdem wird nur eine reine Stumpfnaht erzielt, die erfahrungsgemäß fUr hochwertige Verbindungen, wie sie z. B. der Korrosionsschutz verlangt, festigkeitsmä#ig nicht ausreicht. Weiterhin ist ein exakt flüssiger Schweißzusatzwerkstoff durch das spezifische Temperaturverhalten der Thermoplaste kaum zu verwirklichen.Using this procedure requires a precise seam line, what is difficult to achieve under assembly conditions. Besides, it will only be a pure Butt weld achieved, which experience has shown for high-quality connections, such as. B. the corrosion protection required is not sufficient in terms of strength. Furthermore is an exactly liquid filler metal due to the specific temperature behavior the thermoplastics can hardly be realized.
Bine andere Vorrichtung zum Verschweißen von Stoßfugen thermoplastischer Bodenbeläge vereint die bekannten Einrichtungen wie Zuführung des Schweißfadens, eine unter Federdruok stehende Einpreßrolle für denselben, eine Heizvorrichtung und Sohweißlufterzeugung sowie einen Vorsohubantrieb in sich. Die Vorrichtung wird durch zwei Spursteine in der Nahtfuge geführt. Diese Vorrichtung erlaubt Jedoch nur das Verschweißen von Schweißfäden.Another device for welding butt joints thermoplastic Floor coverings combine the well-known devices such as feeding the welding thread, a pressure roller under spring pressure for the same, a heating device and white air generation as well as a pre-lift drive in itself. The device will guided through two track stones in the seam joint. However, this device allows only the welding of welding threads.
Die Art der Fuhrting in der Nahtfuge erlaubt nur ein Schweißen in absolut geraden Nahtfugen, was unter Montagebedingungen nioht zu verwirklichen ist. Die Vorrichtung kann zeB bei Thermoplastfolienauskleidungen zum Zweoke des Korrosionsschutzes nicht eingesetzt werden.The type of guiding in the seam allows only welding in absolutely straight seam joints, which cannot be achieved under installation conditions. The device can eg with thermoplastic film linings for the purpose of corrosion protection cannot be used.
Zweck der Erfindung ist es, ein Verfahren und eine dazugehörige Vorrichtung zu schaffen, womit unter Baustellenbedingungen eine wirtschaftliche Schweißung der Stöße von Thermoplastfoliden unter Einhaltung der Forderung nach gleichbleibender Diohtheit und hoher Festigkeit vorgenormen werden kann.The purpose of the invention is to provide a method and an associated device to create, with which an economical welding of the Joints of thermoplastic foils in compliance with the requirement for constant Diohtness and high strength can be pre-standardized.
Der Erfindung liegt deshalb die Aufgabe zugrunde, gerede oder leicht gekrümmte Schwei@nähte an vorn@hmlich auch auf unebenem Untergrund geklebten Ther@oplastfoli@@ unter Montagebedingugen kontinuierlich und maschinell her@ustellen, wobei im Bersich der Verbindung keine Hohlräumo unter dor Folie @ntst@hen.The invention is therefore based on the object, talked about or easily curved weld seams on the front, even on uneven surfaces, glued Ther @ oplastfoli @@ to be produced continuously and mechanically under assembly conditions, whereby in the area of the connection there are no cavities under the foil.
G@mä# der Erfindung wird diese Aufgabe dedurch gelöst, da# die meist aufgeklebten Thermoplastfolien, welche stumpf gestoßen sind, durch eine Profillasche artgleiohem Materials mittels Hei#-gasschwei#ung verbunden werden. Dabei kann die Profilnas@ unten spitz, flach, rund oder elliptisch ausgebildet werden, wobei deren Höhe gleich oder größer der zu verschweißenden Foliendioke ist. Letzteres ist dann von Vorteil, wenn die Nahtfuge nioht mit der profilnase übereinstimmt, so daß die Profilnase beim Schwei#edn in den Querschnitt der Nahtfuge gepreßt wird.According to the invention, this problem is solved by the fact that most of the glued-on thermoplastic films, which are butt jointed, through a profile tab Similar materials can be connected by means of hot gas welding. The Profilnas @ are pointed, flat, round or elliptical below, with their Height is equal to or greater than the foil dioke to be welded. The latter is then advantageous if the seam does not match the profile nose so that the The profile nose is pressed into the cross-section of the seam during welding.
Die ma@chinelle Verschwei@ung der Profillasche mit der zu verbindenden Thermoplastfolie erfolgt mit einer Vorrichtung, bestehend aus einem Grundaggregat mit Schwei#lufterzeugung, Heizung und vorsohubantrieb, einem entspreehend ausgebildeten Schwei#-düsensystem sowie einem Schweißkopf, der die Führung der aufzuschwei#enden Proilllasohe sur Schweißstelle und die Druckausübung auf die Schwei#stelle bewirkt, indem die Druckrolle des S@hwei#kopfes um einen Drehpunkt pendelnd aufgehängt ist.The ma @ chinelle welding of the profile bracket with the one to be connected Thermoplastic film is made with a device consisting of a basic unit with welding air generation, heating and pre-stroke drive, a suitably trained one Welding nozzle system as well as a welding head that guides the welded on Proilllasohe sur the welding point and the exertion of pressure on the welding point causes by suspending the pressure roller of the S @ hwei # head swinging around a pivot point.
Der Drehpunkt ist vertikal beweglich und seine Mittelachse in der Horizontalen ist um 90° gegen die Druckrollenachse in der Horizontalen versetzt. Er liegt in der Mitte der Druckrolle in Höhe oder über deren horizontaler Mittelachse. Die Druckübertragung aui die Druokrolle erfolgt durch mindestens zwei gleichdimensionierte, vertikal angeordnete Druckfederelements beiderseits des Drehpunktes, deren Vorspannung im Bedarfsfall einstellbar ist.The pivot point is vertically movable and its central axis in the Horizontal is offset by 90 ° from the pressure roller axis in the horizontal. It lies in the middle of the pressure roller at the height or above its horizontal central axis. The pressure is transmitted to the pressure roller by at least two equally dimensioned, vertically arranged compression spring element on both sides of the pivot point, their bias is adjustable if necessary.
Die Erfindung soll nachstehend an Ausführungsbeispielen erlGutert werden In den zugehörigen Zeichnungen zeigen: Fig. 1: Ausführungsbeispiel für den Querschnitt der Profilasche Fig. 2: Schwei#kopf zum Verschwei#en einer Pro fillasche mit spitzer Profilnase nach Fig. 1 Fig. 3: Vorrichtung zum maschinellen Verschweißen der Profillasche mit Schwei#kopf nach Fig. 2 Zum Verschweißen einer Profillasehe mit spitzer Proff@@ase naoh Fig. 1 dient der Sohweißkopf naoh Fig. 2. Eine Säule 5 mit reohteckigem Querschnitt Ubernimmt die vertikale FUhrung des Systems.The invention is to be explained below using exemplary embodiments The accompanying drawings show: Fig. 1: Exemplary embodiment for the Cross-section of the profile pocket Fig. 2: Welding head for welding a profile pocket with a pointed profile nose according to Fig. 1 Fig. 3: Device for machine welding the profile bracket with welding head according to Fig. 2 For welding a profile bracket With a pointed proff @@ ase naoh Fig. 1 the welding head is used as shown in Fig. 2. A column 5 with a rectangular cross-section takes over the vertical guidance of the system.
Im Punkt 3 ist der Druckrollenhalter 6 durch einen in die Bildebene gerichteten Bolzen pendelnd an der Säule 5 aufgehängt.At point 3, the pressure roller holder 6 is through a into the image plane directional bolt suspended pendulum on the column 5.
Parallel zur Säule 5 sind beiderseits Spiraldruckfedern 4 angeordnetn. Über sie erfolgt die elastische Druckübertragung vom Grundaggregat nach Fig. 3 zur Druckrolle 2.Parallel to the column 5, spiral compression springs 4 are arranged on both sides. The elastic pressure transfer from the basic unit according to FIG. 3 to the Pressure roller 2.
Bei Schwei#beginn wird die Profillasche 1 in den Spalt zwischen Druckrolle 2 und Druckrollenhalter 6 eingeführt. Die Profillasche 1 wird soweit eingeschoben, bis sie an der Unterseite der Durckrolle 2 wieder aus der Bildebene tritt. Die Druokrolle 2 wird aufgesetzt und es beginnt die fortlaufende Versohweißung der Profillasche 1 mit dem zu verbindenden Grundmaterial mittels Heißluft, die aus einer Breitschlitzdüse 7 ausströmt. Der Schwei#-druck ist durch die Dimensionen der Spiraldruckfedern 4 festgelegt. Die Schwei#geschwindigkeit wird am Grundaggregat nach Fig.3 stufenlos durch elektrische Regelung der Drehzahl des Getriebemotors 8 über Potentiometer 9 eingestellt. Der Vorschub erfolgt durch den Antrieb der Triebräder 10 vom Getriebemotor 8 über Rollenkette 11.At the start of welding, the profile bracket 1 is inserted into the gap between the pressure roller 2 and pressure roller holder 6 inserted. The profile bracket 1 is pushed in until until it emerges from the image plane again on the underside of the pressure roller 2. The pressure scroll 2 is put on and the continuous welding of the profile flap begins 1 with the base material to be connected by means of hot air from a slot nozzle 7 flows out. The welding pressure is due to the dimensions of the spiral compression springs 4 set. The welding speed is stepless on the basic unit according to Fig. 3 by electrical regulation of the speed of the gear motor 8 via potentiometer 9 set. The feed takes place through the drive of the drive wheels 10 from the gear motor 8 via roller chain 11.
Weiterhin beinhaltet das Grundaggregat naoh Fig. 3 die Schwei#-lufterzeugung 12 und die Heizpatrone 13 für die Schweißluft.Furthermore, the basic unit according to Fig. 3 contains the welding air generation 12 and the heating cartridge 13 for the welding air.
Das Heißgas strömt dann aus der Heizpatrone 13 zur Breitsohlitzdüse 7, vor der die Verschweißung erfolgte Der Vorteil der Erfindung besteht in erster Linie darin, daß aufgeklebte Thermoplastfolien nunmehr auch unter Montagebedingungen, beispielsweise auf Baustellen maschinell ausgeführt werden können, Dabei sinkt die mit der bisherigen Handschwei#ung verbundene körperliche Belastung des Schweißers auf ein Mindestmaß ab, während für die Schweißverbindung eine gleichbleibende Qualität garantiert werden kann.The hot gas then flows out of the heating cartridge 13 to the Breitsohlitz nozzle 7, prior to which the welding was carried out. The advantage of the invention is first Line in the fact that glued-on thermoplastic films now also under assembly conditions, for example, can be carried out by machine on construction sites, the physical stress on the welder associated with previous manual welding to a minimum, while maintaining a consistent quality for the welded joint can be guaranteed.
Die pendelnde Anordnung der Druckrolle erlaubt eine einwandfreie Druckausübung auf die Schweißstelle auch bei unebenen Oberflächen, wie sie unter Montagebedingungen meist vorliegen.The pendulum arrangement of the pressure roller allows perfect pressure exertion on the welding point even with uneven surfaces, such as those under assembly conditions mostly present.
Die Zusammenfassung aller Hilfsaggregate bedeutet einfache Handhebung einer solchen Vorrichtung sowie raumsparende Bauweise.The combination of all auxiliary units means simple manual lifting such a device and space-saving design.
Der ökonomische Nutzen der Erfindung liegt in der Steigerung der Arbeitsproduktivität beim Verbinden vornehmlich aufgeklebter Thermoplastfolien durch Schweißen gegenüber der manuellen Fertigung.The economic benefit of the invention lies in increasing labor productivity when connecting primarily glued-on thermoplastic films by welding manual production.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEZ0012593 | 1966-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1629244A1 true DE1629244A1 (en) | 1970-07-30 |
Family
ID=7622634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19661629244 Pending DE1629244A1 (en) | 1966-12-20 | 1966-12-20 | Method and device for joining thermoplastic films by hot-gas welding |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1629244A1 (en) |
-
1966
- 1966-12-20 DE DE19661629244 patent/DE1629244A1/en active Pending
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