DE2106109B2 - DEVICE FOR BUTT WELDING PROFILES MADE OF THERMOPLASTIC MATERIAL - Google Patents

DEVICE FOR BUTT WELDING PROFILES MADE OF THERMOPLASTIC MATERIAL

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Publication number
DE2106109B2
DE2106109B2 DE19712106109 DE2106109A DE2106109B2 DE 2106109 B2 DE2106109 B2 DE 2106109B2 DE 19712106109 DE19712106109 DE 19712106109 DE 2106109 A DE2106109 A DE 2106109A DE 2106109 B2 DE2106109 B2 DE 2106109B2
Authority
DE
Germany
Prior art keywords
welding
profile
bead
weld
welded
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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
Application number
DE19712106109
Other languages
German (de)
Other versions
DE2106109A1 (en
Inventor
Adnanus Beye Dipl Ing Arnheim Smits (Niederlande) B29c 27 02
Original Assignee
Alkono AG, Chur (Schweiz), VtT TeUner, V , Dt Ing Dt jot , Pat und Rechtsanw , 8000 München
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Application filed by Alkono AG, Chur (Schweiz), VtT TeUner, V , Dt Ing Dt jot , Pat und Rechtsanw , 8000 München filed Critical Alkono AG, Chur (Schweiz), VtT TeUner, V , Dt Ing Dt jot , Pat und Rechtsanw , 8000 München
Publication of DE2106109A1 publication Critical patent/DE2106109A1/de
Publication of DE2106109B2 publication Critical patent/DE2106109B2/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/02—Deburring or deflashing
    • B29C37/04—Deburring or deflashing of welded articles, e.g. deburring or deflashing in combination with welding
    • 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
    • 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
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/524—Joining profiled elements
    • B29C66/5241—Joining profiled elements for forming coaxial connections, i.e. the profiled elements to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/524—Joining profiled elements
    • B29C66/5243—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces
    • B29C66/52431—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/725—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 structure of the material of the parts to be joined being hollow-walled or honeycombs
    • B29C66/7252—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 structure of the material of the parts to be joined being hollow-walled or honeycombs hollow-walled
    • B29C66/72523—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 structure of the material of the parts to be joined being hollow-walled or honeycombs hollow-walled multi-channelled or multi-tubular
    • 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
    • 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
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
    • B29L2031/005—Profiled members, e.g. beams, sections having a profiled transverse cross-section for making window frames

Landscapes

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

Description

F i g. 2 einen Schnitt entlang der Linie ΙΙ-Π in Fig. 1,F i g. 2 shows a section along the line ΙΙ-Π in FIG. 1,

F i g. 2 a einen ähnlichen Schnitt wie in F i g. 2 bei einer anderen Ausführungsform der Abkneifelemente, F i g. 2a shows a section similar to that in FIG. 2 in another embodiment of the pinch-off elements,

F i g. 3 einen Detailquerschnitt eines mit Hilfe der Vorrichtung nach F i g. 2 abgekniffenen Wulstes,F i g. 3 shows a detailed cross-section of a with the aid of the device according to FIG. 2 pinched bead,

F i g. 3 a einen mit der Vorrichtung nach. F i g. 2 a abgekniffenen Wulst,F i g. 3 a with the device according to. F i g. 2 a pinched bead,

Fig.4 einen Axialquerschnitt (im Detail) einer Klemme mit federndem Abkneifelement,4 shows an axial cross-section (in detail) of a clamp with a resilient pinch-off element,

F i g. 5 eine vereinfachte Ansicht (zum Teil geschnitten) einer Profilklemme mit gesondert dazu bewegbaren Messerabkneifrändern,F i g. 5 shows a simplified view (partially in section) of a profile clamp which can be moved separately Knife edges,

Fig. 6 einen Messerabkneif rand gemäß Fig. 5 in Perspektivansicht,FIG. 6 shows a knife pinch edge according to FIG. 5 in Perspective view,

F i g. 7 einen Querschnitt durch eine Klemme mit darin befindlichem Profilstab.F i g. 7 shows a cross section through a clamp with a profile bar located therein.

Bei der Darstellung in F i g. 1 ist ein aus thermoplastischem Material hergestellter Profilstab 1 ganz von einer Klemme 2 mit Abkneifrand 3 umschlossen. F i g. 2 veranschaulicht in vergrößertem Maßstab die einander zugekehrten Abkneifränder 3 der Klemmen 2. Es ist zu erkennen, daß die Stabenden 1, bevor sie aufeinander zu bewegt werden, gegenüber der Vorderkante der Abkneifränder 3 mit einem Abstand d vorstehen. Die vorstehenden Profilränder werden dann ausreichend erwärmt, um das Material zu plastifizierten bzw. wenigstens in einen solchen Zustand zu bringen, daß diese vorstehenden Ränder sich unter einem Schweißdruck von etwa 2 bis 3 kg/ cm2 miteinander verbinden; die Klemmen 2 werden dann gegeneinander bewegt, bis die Vorderkanten der Abkneifränder 3 aneinanderstoßen. Haben die Vorderkanten der Abkneifränder eine Höhe/z (vgl. F i g. 2), so wird der Schweißwulst ganz zu einer Art Vlies 6 ausgepreßt, wie es in F i g. 3 veranschaulicht ist. Dieses Vlies kann mühelos und ohne Hilfsmittel, also von Hand, abgebrochen werden.In the illustration in FIG. 1, a profile rod 1 made of thermoplastic material is completely enclosed by a clamp 2 with a pinch-off rim 3. F i g. 2 illustrates, on an enlarged scale, the mutually facing beveling edges 3 of the clamps 2. It can be seen that the rod ends 1, before they are moved towards one another, protrude from the front edge of the beveling edges 3 at a distance d . The protruding profile edges are then heated sufficiently to plasticize the material or at least bring it into such a state that these protruding edges join together under a welding pressure of about 2 to 3 kg / cm 2 ; the clamps 2 are then moved towards one another until the front edges of the beveling edges 3 abut one another. If the front edges of the bevelling edges have a height / z (cf. FIG. 2), then the weld bead is completely pressed out into a kind of fleece 6, as shown in FIG. 3 is illustrated. This fleece can be broken off effortlessly and without tools, i.e. by hand.

Wenn die Vorderkante scharf ist, wie F i g. 2 a zeigt, so entsteht nach Beendigung des Schweißens (vgl. F i g. 3 a) ein Grat oder Wulst 5, der überhaupt nicht mehr oder nur noch über einen schmalen Steg 4 von geringer Höhe mit der Schweißzone verbunden ist. Dieser nahezu abgekniffene Grat oder Wulst 5 wird dann zwangläufig beim Lösen der Klemmen entfernt, da diese den Profilstab ganz umgeben und senkrecht zur Profilachse gelöst werden, so daß bei ihrem Abnehmen die Abkneifränder den über ihnen liegenden Wulst abstreifen.If the leading edge is sharp, as shown in Fig. 2 a shows, it arises after the welding is finished (cf. FIG. 3 a) a ridge or bead 5 that no longer exists at all or only over a narrow web 4 is connected to the welding zone at a low height. This almost pinched ridge or bead 5 is then inevitably removed when loosening the clamps, as they completely surround the profile bar and perpendicular to the profile axis, so that when you remove the bevel edges above them strip off the lying bead.

In F i g. 4 ist eine Abwandlung dargestellt, bei der der Abkneifrand 3 zumindest einer Klemme 2 relativ zu dieser Klemme beweglich ist und unter der Vorspannung einer Druckfeder? steht. Das thermoplastische Material 1 steht mit einem Abstand t gegenüber der Vorderkante des Abkneifrandes 3 vor. Beim Gegeneinanderbewegen der Profilstabenden 1 braucht man bei dieser Ausführungsform nicht so sehr darauf zu achten, daß der Schweißdruck genau in dem oder vor dem Moment erreicht wird, in dem die Abkneifränder 3 aufeinanderstoßen. Sollten sich die Abkneifränder 3 berühren, bevor der Soll-Schweißdruck erreicht ist, so können die Klemmen und die damit verbundenen Stabenden noch weiter gegeneinander bewegt werden, da unter der Wirkung der Feder 7 der Abkneif rand bzw. die Abkneifränder gegenüber der zugehörigen Klemme bzw. gegenüber den zugehörigen Klemmen relativ bewegbar ist bzw. sind.In Fig. 4 shows a modification in which the pinch-off edge 3 of at least one clamp 2 is movable relative to this clamp and is under the bias of a compression spring? stands. The thermoplastic material 1 projects at a distance t from the front edge of the bevel edge 3. When moving the profile bar ends 1 against one another, in this embodiment one does not have to pay too much attention to the fact that the welding pressure is reached exactly at or before the moment in which the beveling edges 3 meet. Should the beveling edges 3 touch before the target welding pressure is reached, the clamps and the rod ends connected to them can be moved further against one another, since under the action of the spring 7 the beveling edge or the beveling edges are opposite to the associated clamp or ends. is or are relatively movable with respect to the associated clamps.

Eine dritte Ausführungsform der Erfindung ist in den F i g. 5 und 6 veranschaulicht. Hiernach sind die Abkneifränder als unabhängig von der Klemmbewegung bewegliche Messer 8 ausgebildet. Jedes Messer 8 kann beispielsweise als ein dem Profilumfang entsprechend angepaßtes Blech mit scharfer Vorderkante ausgeführt sein. Wenn die Klemmen 2 in genügendem Maße aufeinander zubewegt worden sind (um die Schweißung zu erzielen), so können die Messer mit Hilfe eines gesonderten Antriebsmittels gegen den gebildeten Schweißwulst bewegt werden.A third embodiment of the invention is shown in FIGS. 5 and 6 illustrated. According to this are the The bevel edges are designed as a knife 8 that can be moved independently of the clamping movement. Every knife 8 can be used, for example, as a sheet metal with a sharp front edge, adapted accordingly to the profile circumference be executed. When the clamps 2 have been moved towards each other to a sufficient extent (in order to achieve the weld), the knives can counteract with the help of a separate drive means the weld bead formed are moved.

Wie bereits erwähnt, müssen die ein Profil vollkommen umschließenden Klemmen senkrecht zu der Profilstabachse gelöst werden können. In F i g. 7 ist eine Ausführungsform der Klemme veranschaulicht, die sich aus zwei Teilen 2 α und 2 b zusammensetzt, wobei der Klemmenteil 2 a fest mit einem Schlitten 9 verbunden ist, der seinerseits mit einem Schlittenbett 10 in Verbindung steht. Zum Lösen des Profils 1 kann der Klemmenteil 2 b entfernt werden. Damit ein gutes Einklemmen erreicht werden kann, ist es erwünscht, daß die Klemmenteile mit geringem Spiel aneinanderliegen. Durch eine glatte Ausarbeitung der Flächen, mit denen die Klemmen an den Profilen anliegen, wird gewährleistet, daß die entsprechenden Flächen des Kunststoffprofils glatt bleiben, wodurch sich ein nachträgliches Polieren der Schweißzone erübrigt. As already mentioned, the clamps completely enclosing a profile must be able to be released perpendicular to the profile rod axis. In Fig. 7 illustrates an embodiment of the clamp which is composed of two parts 2 α and 2 b , the clamp part 2 a being firmly connected to a slide 9, which in turn is connected to a slide bed 10. To release the profile 1, the clamping part 2 b can be removed. So that good clamping can be achieved, it is desirable that the clamping parts rest against one another with little play. A smooth finish to the surfaces with which the clamps rest on the profiles ensures that the corresponding surfaces of the plastic profile remain smooth, which makes subsequent polishing of the welding zone unnecessary.

Es verstellt sich von selbst, daß das Material der Abkneifränder hart, verschleißfest und beständig gegenüber Salzsäuredämpfe sein muß, wie es z.B. bei Chromnickelstahl der Fall ist.It pretends that the material of the bevel edges is hard, wear-resistant and resistant to wear Must be hydrochloric acid vapors, as is the case with chrome-nickel steel, for example.

In der Praxis hat sich gezeigt, daß mit der erfindungsgemäßen Schweißvorrichtung PVC-Material stumpfgeschweißt werden kann, ohne daß insbesondere die Schweißzone in irgendeiner Weise nachbehandelt werden muß.In practice it has been shown that with the welding device according to the invention PVC material Can be butt-welded without the weld zone in particular being post-treated in any way must become.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

COPYCOPY

Claims (2)

1 2 . Beide zuvor genannten bekannten Ausführungen Patentansprüche: sind mit einer umständlichen und zeitraubenden Arbeitsweise verbunden.1 2. Both of the above-mentioned known designs: are associated with a cumbersome and time-consuming way of working. 1. Vorrichtung zürn Stumpfschweißen von aus Aus der schweizerischen Patentschrift 473 644 ist thermoplastischem Material bestehenden Profi- 5 weiterhin eine Vorrichtung zum Stumpfverschweißen len, die nahe ihren miteinander zu verschweißen- von Verbundplatten bekannt, welche außer der zu den Profilrändern von Klemmorganen umfaßt verschweißenden Kunststoffschicht eine metallische, sind, die mit den darin festgeklemmten Profilen steife Deckschicht aufweisen. Diese Deckschicht wird so weit in Richtung aufeinander beweglich sind, zum Abkneifen der während der Schweißung auftredaß die durch Erhitzung plastifizierten Profilen- io tenden Schweißwülste benutzt. Zu diesem Zweck den unter Bildung eines Schweißwulstes aneinan- wird nahe der Stumpfschweißzone an jedem Plattendergepreßt werden, dadurch gekenh - ende bin Teil der Deckschicht entfernt, so daß der zeichnet, daß die Klemmorgane (2) mit zum entstehende Schweißwulst entweichen kann, bis sich Entfernen des Sehweißwulstes dienenden, gegen- die Kanten des Deckbleches berühren und dabei den über dem zugehörigen Profilende etwas zurück- 15 Schweißwulst abkneiden. Es handelt sich hierbei also gesetzten Abkneifelementen (3) versehen sind. um eine Ausführung, die zum Stumpfschweißen von1. Device for butt welding from From Swiss patent specification 473 644 is Thermoplastic material existing profile 5 continues to have a device for butt welding len, which are close to their to be welded together known from composite panels, which apart from the to the profile edges of clamping elements comprises a welded plastic layer a metallic, which have a rigid cover layer with the profiles clamped therein. This top layer will are movable so far in the direction of each other, to pinch off the auftredaß during the welding the profiled weld beads, plasticized by heating, are used. To this end These are pressed together to form a weld bead near the butt weld zone on each plate are removed, thereby gekenh - ende bin part of the top layer, so that the shows that the clamping elements (2) can escape with the weld bead that is produced until it is Removing the Sehweißwulstes serving, touching the edges of the cover plate and thereby the 15 Cut off the welding bead a little back over the corresponding end of the profile. So this is what it is set pinching elements (3) are provided. a version that is suitable for butt welding of 2. Vorrichtung nach Anspruch I^ dadurch ge- Profilen, welche vollkommen aus thermoplastischem kennzeichnet, daß die das Profil (i) allseitig um- Material bestehen, völlig ungeeignet ist.
fassenden Klemmorgane (t) zweigeteilt UiId nach Der Erfindung liegt daher die Aufgabe zügrunde, dem Stumpfschweißen der Profile senkrecht zur 20 eine Vorrichtung der eingangs genannten Art zu Profilachse lösbar sind. schaffen, durch die auf möglichst einfache Weise der2. Apparatus according to claim I ^ characterized GE profiles, which are made entirely of thermoplastic that the profile (i) consist of material on all sides, is completely unsuitable.
gripping clamping members (t) divided into two parts according to the invention, therefore, the object is to allow the butt welding of the profiles perpendicular to the profile axis to be releasable using a device of the type mentioned at the beginning. create, through the simplest possible way of the mit dem Entfernen des Schweißwulstes verbundene, zeitraubende Arbeitsgang vermieden ist.time-consuming operation associated with the removal of the weld bead is avoided. Diese Aufgabe wird erfindungsgemäß dadurch ge-This object is achieved according to the invention 25 löst, daß die Klemmorgane mit zum Entfernen des25 solves that the clamping members with to remove the Schweißwulstes dienenden, gegenüber dem zugehörigen Profilende etwas zurückgesetzten Abkneifeleiüenteii versehen sind.Abneifeleiüenteii serving welding beads, somewhat recessed compared to the associated end of the profile are provided. Die Erfindung bezieht sich auf eine Vorrichtung Die erfindungsgemäße Vorrichtung nutzt die Erzürn Stumpfschweißen von aus thermoplastischem 30 kenntnis aus, daß die beim Stumpfschweißen ohnehin Material bestehenden Profilen, die nahe ihren mitein- aufeinander zu bewegten Klemmorgane gleichzeitig ander zu verschweißenden ■ Profilrändern von die Abkneiforgane aufeinander zu bewegen können, Klemmorganen umfaßt sind, die mit den darin fest- wobei diese dann gegenüber ihren zugehörigen Profilgekfemtnteii Profilen so weit iri Richtung aufeinander enden so weit zurückgesetzt sind, daß sie nach beenbeweglich sind, daß die durch Erhitzung plastifizier- 35 Öetem Schweißvorgang (wenn die Klemmorgane also ten Profilenden unter Bildung eines Schweißverlustes weit genug aufeinander zu bewegt sind) gerade aneinaneinandergepreßt werden. anderstoßen und dadurch den Schweißwulst von derThe invention relates to a device. The device according to the invention uses the ore Butt welding from thermoplastic 30 know from that with butt welding anyway Material existing profiles that are close to their clamping elements that are moved towards one another at the same time on the profile edges to be welded ■ to move the pinching organs towards one another, Clamping members are included, which are fixed with the therein- whereby these are then compared with their associated Profilgekfemtnteii Profiles are set back so far in the direction of one another that they can be moved towards each other are that the welding process plasticized by heating (if the clamping organs so ten profile ends are moved far enough towards each other with the formation of a loss of sweat) are just pressed together will. abut and thereby remove the weld bead from the Wenn beispielsweise nach dem sogenannten Schweißnaht abtrennen können. Wenn nach dem Zu-Spiegelstumpf-Schweißverfahren PVC-Stäbe zusam- sammenstoßen der beiden Abkneifränder der Wulst mengeschweißt werden, so werden die Stäbe an ihren 40 durch einen düniien Steg nut der Schweißzone vermiteinander zu verschweißenden Enden in Klemmor- bunden bleibt, so wird er zwangläufig beim Abnehgane so eingeklemmt, daß die Stabenden an den men der Klemmorgane, die die Profile umschließen, Klemmorganen vorstehen. Zum Plastifizieren der entfernt. Hierdurch werden auf einfache Weise in miteinander zu verschweißenden Stabenden ist ein einem einzigen Arbeitsgang das stumpfe Aneinanderstark erhitzter Spiegel vorgesehen, der zwischen die 45 schweißen der beiden Profilenden und praktisch beiden Schweißflächen eingebracht wird. Nach genü- gleichzeitig eine Entfernung des unerwünschten gender Erwärmung wird der Schweißspiegel entfernt Schweißwulstes erzielt. Eine nachträgliche Bearbei- und die plastifizierten Stabenden werden aneinander- tung der Schweißstelle kann infolgedessen fortfallen, gedruckt. Nach beendetem Schweißvörgähg können also dieIf, for example, you can cut off after the so-called weld seam. If after the mirror butt welding process If the PVC rods butt together the two pinch-off edges of the bead are welded together, the rods are connected to one another at their 40 by a thin web in the weld zone If the ends to be welded remain in clamps, it becomes inevitable with the removal device clamped in such a way that the rod ends on the men of the clamping elements that enclose the profiles, Clamping organs protrude. To plasticize the removed. This makes it easy to use Rod ends to be welded to one another are butted together in a single operation heated mirror provided that weld between the 45 of the two profile ends and practical is introduced into both welding surfaces. After sufficient, a removal of the undesired at the same time The welding mirror is removed from the welding bead by means of heating. A subsequent processing and the plasticized rod ends are juxtaposed - the weld can be omitted as a result, printed. After the welding process is over, the Sowohl beim Erhitzen der Stabenden an dem hei- 5° die Profile umfasssenden Klemmorgane geöffnet und ßen Schweißspiegel als auch vor allem beim Anein- die fertigbearbeiteten, zusammengeschweißten Profilanderdrücken dieser zu verschweißenden Stabenden enden herausgenommen werden,
entsteht um die Schweißfläche herum ein uner- Es versteht sich von selbst^ daß die Abkneifele-Both when the rod ends are heated on the hot clamping elements surrounding the profiles are opened and the welding mirrors are removed, as well as when the finished, welded profile ends are pressed against each other by pressing these rod ends to be welded together,
It goes without saying that the pinching point arises around the welding surface. wünschter Wulst oder Grat. mente gegenüber den zugehörigen Profilenden einer-desired bead or burr. elements opposite the associated profile ends of a Aus den niederländischen Patentanmeldungen 35 seits genügend weit zurückgesetzt werden, damit zum 6413 564 und 6903 108 sind beispielsweise Vorrich- Erreichen des Soll-Schweißdruckes die beiden zu tungen bekannt, bei denen ein beim Schweißen gebil- verschweißenden Profilenden genügend weit aufeindeter Wulst oder Grat nach dem Schweißvorgang ab- ander zu bewegt werden können, und andererseits geschnitten wird. nicht zu weit zurückgesetzt werden, damit gesichertFrom the Dutch patent applications 35 on the one hand, it should be set back enough so that for 6413 564 and 6903 108 are, for example, the device to reach the target welding pressure known in which a profile ends which are welded together during welding are sufficiently far apart The bead or burr can be moved differently after the welding process, and on the other hand is cut. cannot be set back too far, so that it is secured Ferner ist beispielsweise in der niederländischen 60 wird, daß sie etwa bei Erreichen des Soll-Schweiß-Patentanmeldung 282 101 eine Vorrichtung beschrie- druckes im zu verschleißenden Material aufeinanderben, mit der ein schlauchartiges Zwischenprodukt in stoßen. Dieses Maß der Zurücksetzung kann für jeeiner Spritzmatrize hergestellt wird. Hierbei sind zum des Material auf einfache Weise ermittelt werden.
Zusammenkneifen des Zwischenprodukts Klemmrän- Weitere Einzelheiten gehen aus der folgenden Be-Furthermore, for example, in the Dutch 60 it is stated that, when the target welding patent application 282 101 is reached, a device is described in the material to be worn, with which a hose-like intermediate product comes into contact. This degree of setback can be established for each injection mold. Here, the material can be determined in a simple manner.
Pinching the intermediate product clamping ring- For more details, please refer to the following der vorgesehen. Für die Entfernung des überschüssi- 65 Schreibung einiger in der Zeichnung veranschaulichgen Materials nach dem Zusammenpressen können ter Ausführungsbeispiele hervor. Es zeigt
ein gesondertes, bewegliches Messer oder ein Rollen- F i g. 1 eine Perspektivansicht einer Klemme, diethe provided. For the removal of the excess of some of the material illustrated in the drawing after pressing, the exemplary embodiments can be seen. It shows
a separate, movable knife or a roller F i g. Fig. 1 is a perspective view of a clamp showing system vorgesehen sein. ein Rohrprofil umfaßt hat,system be provided. has comprised a tubular profile,
DE19712106109 1970-02-13 1971-02-09 DEVICE FOR BUTT WELDING PROFILES MADE OF THERMOPLASTIC MATERIAL Pending DE2106109B2 (en)

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Application Number Priority Date Filing Date Title
NL707002088A NL142889B (en) 1970-02-13 1970-02-13 METHOD AND DEVICE FOR SWITCH WELDING PROFILES FROM A THERMOPLASTIC PLASTIC.

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DE2106109A1 DE2106109A1 (en) 1971-10-07
DE2106109B2 true DE2106109B2 (en) 1973-07-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK154014B (en) * 1973-03-13 1988-10-03 Dynamit Nobel Ag AID TOOLS FOR A WELDING MACHINE
EP2255942A1 (en) * 2009-05-28 2010-12-01 Murat Makina Sanayi ve Ticaret Ltd. Sti. Profile welding and deburring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK154014B (en) * 1973-03-13 1988-10-03 Dynamit Nobel Ag AID TOOLS FOR A WELDING MACHINE
EP2255942A1 (en) * 2009-05-28 2010-12-01 Murat Makina Sanayi ve Ticaret Ltd. Sti. Profile welding and deburring method

Also Published As

Publication number Publication date
DE2106109A1 (en) 1971-10-07
NL142889B (en) 1974-08-15
FR2048978A5 (en) 1971-03-19
NL7002088A (en) 1971-08-17

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