EP0048812A1 - Device for glueing profiles of wood beams - Google Patents

Device for glueing profiles of wood beams Download PDF

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Publication number
EP0048812A1
EP0048812A1 EP81106424A EP81106424A EP0048812A1 EP 0048812 A1 EP0048812 A1 EP 0048812A1 EP 81106424 A EP81106424 A EP 81106424A EP 81106424 A EP81106424 A EP 81106424A EP 0048812 A1 EP0048812 A1 EP 0048812A1
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EP
European Patent Office
Prior art keywords
profile
pressing
carriage
electrodes
profiles
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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.)
Granted
Application number
EP81106424A
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German (de)
French (fr)
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EP0048812B1 (en
Inventor
Claus Overlack
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Casimir Kast GmbH and Co KG
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Casimir Kast GmbH and Co KG
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Priority to AT81106424T priority Critical patent/ATE6351T1/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/46—Dielectric heating
    • H05B6/60—Arrangements for continuous movement of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0026—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
    • B27M3/0053—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally using glue

Definitions

  • the invention relates to a device for gluing wooden profiles made of rod material, for. B. T and I profiles, by means of high frequency, consisting of an aligned receiving the rods of the profile underlay, one acting from the side in the direction of the glue joint (s) tensioning device and one passing the clamped profile between fixed electrodes of the HF device Conveyor.
  • Gluing by means of high frequency has been known in wood construction for decades, but is limited in practice to a few applications, since either the shape of the glue joint is not suitable for this or the narrow tolerances required for HF application cannot be complied with during the manufacture and assembly of the individual parts. For this reason, wooden profiles for beams, trusses, supports, etc. are still largely glued using conventional technology. In the case of T and I profiles, the straps have so far mostly been grooved on the sides facing each other and placed on the web according to the glue information. With these profiles, however, HF gluing is already known, the profile being placed flat, that is to say parallel to the web, on a base and being drawn in by endless pressure bands acting laterally on the outside of the belts. These pressure bands, which thus also form the tensioning and conveying device, transport the profile past the fixed electrodes of the HF device, the glue setting and the finished profile being released behind the HF device.
  • the invention has for its object to provide a device of the structure described above so that perfect profiles can be obtained in every respect.
  • the conveying device is a path that receives the profile between its side cheeks and the bottom, the length of which corresponds to the greatest length of the profile to be processed and at least one of the side cheeks has the tensioning device, and that in the conveying direction in front of the HF
  • a stationary pushing device for straightening the bars of the profile by pressing against the support and at the same time aligning them in their relative position to one another is arranged, the pushing device first taking action and only after its working cycle the clamping device which activates the profile even after being released from the stationary Press device holds in the aligned position.
  • the pressing device consists of a plurality of pressure cylinders which are distributed over the length of the profile and act on the bars of the profile.
  • Each pressure cylinder can be assigned a pressure piece which is adapted to the upper sides of the bars of the profile in their relative position to one another, so that one can get by with a minimum of pressure cylinder.
  • the carriage is guided on running rails which are laid between a feed station, the pressing device, the HF device and a removal station.
  • the trolley can either be moved back and forth between these stations and facilities or it can also be guided in an endless path from the loading station to the removal station and from there back to the loading station.
  • Such an endless path can be circular in a horizontal plane or formed from linear sections with sliding platforms. However, it can also have a return path arranged above or below the floor with lifting devices in each case at the head ends.
  • a preferred embodiment of the invention is characterized in that the tensioning device consists of one or more pneumatic pressure chambers arranged on a side cheek of the carriage. For example, one or more can be along a side cheek of the car. hoses divided into chambers, which are filled with compressed air to tension the profile.
  • This embodiment ensures a constant pressure over the entire length of the profile and is otherwise less prone to failure. It is also particularly economical from an operational point of view, since compressed air is available in practically every wood processing company.
  • the force exerted by the tensioning device from the side onto the profile is a multiple of the force exerted by the pressing device in the vertical direction, so that it is ensured that, after being released from the pressing device, the bars of the profile do not deform back or move against one another.
  • the base in the carriage and / or the pressure pieces of the pressing device are designed as templates adapted to the profile contour and can be exchanged for templates for other profile contours. As a result, a minimum set-up time is achieved when switching to other profiles.
  • the electrodes of the HF device are arranged on holders and can be adjusted to different profile contours, so that only short set-up times are required on the HF device when changing over to other profiles.
  • the electrodes of the HF device are provided with sliding shoes which act as spacers and which bear against the bars of the profile in the region of the glue joint (s). It is also expedient if the electrodes are under them by spring force pressing against the glue joint (s). This ensures that, on the one hand, the electrodes are always arranged as close as possible to the glue joint (s) and, on the other hand, are always at the same distance from the glue joint (s). This is crucial for the quality of the gluing.
  • an I-profile 1 is to be glued.
  • the bars forming this profile 1 consist of the web 2 and two straps 3 adjoining its longitudinal sides.
  • the device initially has a conveyor in the form of a carriage 8 which can be moved on rails 4, 5 by means of rollers 6, 7.
  • at least one roller 7 is designed as a guide roller, for example with a double flange, in order to guide the carriage 8 with as little play as possible.
  • on-board castors can of course also be provided.
  • the carriage 8 has a bottom 9 and mutually opposite side walls 10, 11, between which the bars of the profile 1 are received.
  • One of the side cheeks - the side cheek 11 in the exemplary embodiment shown - has a tensioning device, which is indicated schematically in the drawing by a tensioning surface 13 and a directional arrow 14. This tensioning device acts from the side on the left belt 3 of the profile 1, while the other side cheek - optionally with the interposition of a wooden board or the like. Serves as an abutment for the other belt 3.
  • the device also has a stationary pushing device 15, which in the exemplary embodiment shown consists of a plurality of gallowshaped supports 16 (FIGS. 1 and 2) arranged one behind the other at a distance, each of which has a vertical pressure cylinder schematically indicated by the directional arrow 17.
  • the pressure cylinders work over one or more Thrust pieces 18 on the top of the web 2 and the straps 3 so that they are under the same pressing force.
  • the pressure piece 18 can be designed as a template according to the upper profile contour.
  • the web 2 and the belts 3 are pressed against the base 12 by means of the pressure cylinders 17 and are both directed and aligned with one another.
  • the clamping device 13, 14 is put into operation, and the profile 1 is clamped laterally, the clamping force being approximately three times the pressing force.
  • the printing cylinders 17 are then moved into their starting position, that is to say the carriage is released by the pressing device 16, so that it can be moved to the HF device shown in FIG. 3.
  • the HF device 19 has two upper electrodes 20 as hot electrodes and two lower electrodes 21 as cold electrodes, between which the profile 1 with its web 2 is moved by means of the carriage 8.
  • the electrodes 20, 21 have sliding shoes 22 at least at their ends, which are chamfered in the inlet area and serve as spacers to the web 2 or to the belts 3.
  • the electrodes are preferably under a spring force in the vertical and horizontal directions, so that a constant spacing from the glue joint 24 (see FIG. 3) is ensured by the sliding shoes 22 acting as spacers.
  • the uniform pressure can be ensured in a simple manner in that the electrodes 20 sit on a holder 26 via a joint 25, which in turn is under the action of a vertically arranged spring.
  • the position of the electrodes 20, 21 can be adapted to different Profi I shapes.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Hydroponics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
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  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
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  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
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Abstract

Eine Vorrichtung zum Hochfrequenz-Verleimen von Holzprofilen aus Stabmaterial besteht aus einer Fördereinrichtung mit einem das Profil (1) zwischen seinen Seitenwangen (10, 11) und Boden (9) aufnehmenden Wagen (8), einer von dessen einer Seitenwange gebildeten Spanneinrichtung (13, 14) und einer in Förderrichtung vor der HF-Einrichtung angeordneten ortsfesten Drückeinrichtung (15) zum Richten der Stäbe (2, 3) des Profils (1) durch Andrücken gegen eine Unterlage (12) und gleichzeitigen Ausrichten derselben in ihrer Relativlage zueinander, wobei zunächst die Drückeinrichtung (15) und erst nach deren Arbeitstakt die Spanneinrichtung (13, 14) in Tätigkeit tritt, die das Profil (1) auch nach Freigabe aus der ortsfesten Drückeinrichtung in der ausgerichteten Lage hält.A device for high-frequency gluing of wooden profiles made of rod material consists of a conveyor device with a carriage (8) receiving the profile (1) between its side cheeks (10, 11) and bottom (9), and a tensioning device (13, formed by its side cheek) 14) and a fixed pushing device (15) arranged in the conveying direction in front of the HF device for straightening the bars (2, 3) of the profile (1) by pressing against a base (12) and simultaneously aligning them in their relative position to one another, initially the pressing device (15) and only after its work cycle the clamping device (13, 14) comes into action, which keeps the profile (1) in the aligned position even after being released from the stationary pressing device.

Description

Die Erfindung betrifft eine Vorrichtung zum Verleimen von Holzprofilen aus Stabmaterial , z. B. T- und I-Profilen, mittels Hochfrequenz, bestehend aus einer die Stäbe des Profils ausgerichtet aufnehmenden Unterlage, einer von der Seite in Richtung auf die Leimfuge(n) wirkenden Spanneinrichtung und einer das eingespannte Profil zwischen ortsfesten Elektroden der HF-Einrichtung vorbeiführenden Fördereinrichtung.The invention relates to a device for gluing wooden profiles made of rod material, for. B. T and I profiles, by means of high frequency, consisting of an aligned receiving the rods of the profile underlay, one acting from the side in the direction of the glue joint (s) tensioning device and one passing the clamped profile between fixed electrodes of the HF device Conveyor.

Das Verleimen mittels Hochfrequenz ist im Holzbau bereits seit Jahrzehnten bekannt, jedoch in der Praxis auf wenige Anwendungszwecke beschränkt, da entweder die Form der Leimfuge hierfür nicht geeignet ist oder aber die für die HF-Anwendung erforderlichen engen Toleranzen bei der Herstellung und dem Zusammenbau der Einzelteile nicht eingehalten werden können. Aus diesem Grund werden Holzprofile für Träger, Binder, Stützen etc. bis heute noch weitgehend in herkömmlicher Technik verleimt. Bei T- undl-Profilen werden deshalb bisher die Gurte an den einander zugekehrten Seiten zumeist genutet und nach Leimangabe auf den Steg aufgesetzt. Bei diesen Profilen ist aber auch schon eine HF-Leimung bekannt, wobei das Profil flach, also parallel zum Steg auf eine Unterlage gelegt und von seitlich auf die Außenseite der Gurte wirkenden, endlosen Druckbändern eingezogen wird. Diese Druckbänder, die also zugleich die Spann- und Fördereinrichtung bilden, transportieren das Profil an den ortsfesten Elektroden der HF-Einrichtung vorbei, wobei der Leim abbindet und das fertige Profil hinter der HF-Einrichtung abgegeben wird.Gluing by means of high frequency has been known in wood construction for decades, but is limited in practice to a few applications, since either the shape of the glue joint is not suitable for this or the narrow tolerances required for HF application cannot be complied with during the manufacture and assembly of the individual parts. For this reason, wooden profiles for beams, trusses, supports, etc. are still largely glued using conventional technology. In the case of T and I profiles, the straps have so far mostly been grooved on the sides facing each other and placed on the web according to the glue information. With these profiles, however, HF gluing is already known, the profile being placed flat, that is to say parallel to the web, on a base and being drawn in by endless pressure bands acting laterally on the outside of the belts. These pressure bands, which thus also form the tensioning and conveying device, transport the profile past the fixed electrodes of the HF device, the glue setting and the finished profile being released behind the HF device.

Bei diesem Verfahren werden also die Profile im Durchlauf hergestellt, was vom Standpunkt der Wirtschaftlichkeit aus natürlich günstig ist. Gleichwohl kann dieses Verfahren in qual itätsmäßiger Hinsicht nicht befriedigen. Die die Anlage verlassenden Profile sind weder im Gurt, noch im Steg über die Länge des Profils wirklich gerade, noch ist die Leimung selbst korrekt, da der Spalt in der Leimfuge mittels der Druckbänder offenbar nicht eng genug gehalten werden kann.With this method, the profiles are produced in one pass, which is of course inexpensive from the standpoint of economy. Nevertheless, this procedure cannot be satisfactory in terms of quality. The profiles leaving the system are neither really straight in the belt nor in the web over the length of the profile, nor is the gluing itself correct, since the gap in the glue joint cannot obviously be kept tight enough using the pressure tapes.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung des eingangs geschilderten Aufbaus so auszubilden, daß in jeder Hinsicht einwandfreie Profile erhalten werden können.The invention has for its object to provide a device of the structure described above so that perfect profiles can be obtained in every respect.

Diese Aufgabe wird dadurch gelöst, daß die Fördereinrichtung ein das Profil zwischen seinen Seitenwangen und Boden aufnehmender Wegen ist, dessen Länge der größten Länge des zur Verarbeitung kommenden Profils entspricht und von dessen Seitenwangen wenigstens eine die Spanneinrichtung aufweist, und daß in Förderrichtung vor der HF-Einrichtung eine ortsfeste Drückeinrichtung zum Richten der Stäbe des Profils durch Andrücken gegen die Unterlage und gleichzeitigen Ausrichten derselben in ihrer Relativlage zueinander angeordnet ist, wobei zunächst die Drückeinrichtung und erst nach deren Arbeitstakt die Spanneinrichtung in Tätigkeit tritt, die das Profil auch nach Freigabe aus der ortsfesten Drückeinrichtung in der ausgerichteten Lage hält.This object is achieved in that the conveying device is a path that receives the profile between its side cheeks and the bottom, the length of which corresponds to the greatest length of the profile to be processed and at least one of the side cheeks has the tensioning device, and that in the conveying direction in front of the HF A stationary pushing device for straightening the bars of the profile by pressing against the support and at the same time aligning them in their relative position to one another is arranged, the pushing device first taking action and only after its working cycle the clamping device which activates the profile even after being released from the stationary Press device holds in the aligned position.

Die Funktionsweise der erfindungsgemäßen Vorrichtung ist folgende:

  • Die das Profil bildenden Stäbe werden in dem Wagen auf der Unterlage aufgelegt, was direkt vor oder innerhalb der ortsfesten Drückeinrichtung erfolgen kann. Anschließend wird die Drückeinrichtung in Betrieb gesetzt, die alle Teile des Profils, also bei einemI-Profil die beiden Gurte und den Steg gegen die Unterlage drückt. Bei diesem Arbeitsschritt werden Verwindungen und Wellungen im Steg sowie Wellungen in den Gurten, die bei der Länge solcher Profile stets vorhanden sind, beseitigt, d. h. die Stäbe einerseits gerichtet, andererseits in ihrer Relativlage zueinander ausgerichtet. In dieser Lage können die Gurte noch in der Ebene des Stegs gewellt und in sich verwunden sein. Nach diesem Arbeitsschritt wird die Spanneinrichtung in Betrieb genommen, welche die beiden Gurte gegen den Steg drückt, so daß Verwindungen und Wellungen der Gurte in der Stegebene beseitigt werden. Zugleich sorgt die Spanneinrichtung für eine gleichbleibende Leimfuge über die gesamte Länge des Profils. Das Profil wird dann von der Drückeinrichtung freigegeben, so daß das Profil nur noch von der Spanneinrichtung an den Seitenwangen des Wagens gehalten wird und dieser zur HF-Einrichtung verfahren werden kann. Dabei wird das Profil zwischen einer Heißelektrode und einer Kaltelektrode, die oberhalb bzw. unterhalb der Leimfuge angeordnet sind, hindurchbewegt. Das die HF-Einrichtung verlassende Profil ist absolut gerade und einwandfrei verleimt.
The operation of the device according to the invention is as follows:
  • The bars forming the profile are placed in the carriage on the base, which can be done directly in front of or within the stationary pressing device. The pressing device is then put into operation, which presses all parts of the profile, i.e. in the case of an I-profile, the two belts and the web against the base. In this step, twists and undulations in the web as well as undulations in the belts, which are always present with the length of such profiles, are eliminated, ie the rods are directed on the one hand, and on the other aligned in their relative position to one another. In this position, the straps can still be curled and twisted in the plane of the web. After this step, the tensioning device is put into operation, which presses the two belts against the web, so that twists and undulations of the belts in the web plane are eliminated. At the same time, the clamping device ensures one constant glue joint over the entire length of the profile. The profile is then released by the pressing device, so that the profile is only held by the tensioning device on the side walls of the carriage and this can be moved to the HF device. The profile is moved between a hot electrode and a cold electrode, which are arranged above or below the glue joint. The profile leaving the HF device is absolutely straight and perfectly glued.

Gemäß einem Ausführungsbeispiel der Erfindung besteht die Drückeinrichtung aus mehreren über die Länge des Profils verteilt angeordneten, auf die Stäbe des Profils wirkenden Druckzylindern. Dabei kann jedem Druckzylinder ein den Oberseiten der Stäbe des Profils in ihrer Relativlage zueinander angepaßtes Druckstück zugeordnet sein, so daß man mit einem Minimum an Druckzyl indem auskommt.According to one embodiment of the invention, the pressing device consists of a plurality of pressure cylinders which are distributed over the length of the profile and act on the bars of the profile. Each pressure cylinder can be assigned a pressure piece which is adapted to the upper sides of the bars of the profile in their relative position to one another, so that one can get by with a minimum of pressure cylinder.

Nach einem weiteren Ausführungsbeispiel ist der Wagen auf Laufschienen geführt, die zwischen einer Aufgabestation, der Drückeinrichtung, der HF-Einrichtung und einer Entnahmestation verlegt sind. Der Wagen kann entweder zwischen diesen Stationen und Einrichtungen hin- und herverfahren werden oder aber auch in einer endlosen Bahn von der Aufgabe- zu der Entnahmestation und von dieser zurück zur Aufgabestation geführt sein. Eine solche endlose Bahn kann in einer horizontalen Ebene kreisförmig oder aus linearen Abschnitten mit Schiebebühnen gebildet sein. Sie kann aber auch eine Über- oder Unterflur angeordnete Rückführstrecke mit Hub-einrichtungen jeweils an den Kopfenden aufweisen.According to a further exemplary embodiment, the carriage is guided on running rails which are laid between a feed station, the pressing device, the HF device and a removal station. The trolley can either be moved back and forth between these stations and facilities or it can also be guided in an endless path from the loading station to the removal station and from there back to the loading station. Such an endless path can be circular in a horizontal plane or formed from linear sections with sliding platforms. However, it can also have a return path arranged above or below the floor with lifting devices in each case at the head ends.

Eine bevorzugte Ausführungsform der Erfindung zeichnet sich dadurch aus, daß die Spanneinrichtung aus ein oder mehr an einer Seitenwange des Wagens angeordneten pneumatischen Druckkammern besteht. Beispielsweise kann längs einer Seitenwange des Wagens ein oder mehr . in Kammern aufgeteilte Schläuche verlegt sein, die zum Spannen des Profils mittels Druckluft gefüllt werden. Diese Ausführungsform gewährleistet einen gleichbleibenden Druck über die gesamte Länge des Profils und ist im übrigen wenig störanfällig. Sie ist auch in betriebstechnischer Hinsicht besonders günstig, da praktisch in jedem holzverarbeitenden Betrieb Preßluft vorhanden ist.A preferred embodiment of the invention is characterized in that the tensioning device consists of one or more pneumatic pressure chambers arranged on a side cheek of the carriage. For example, one or more can be along a side cheek of the car. hoses divided into chambers, which are filled with compressed air to tension the profile. This embodiment ensures a constant pressure over the entire length of the profile and is otherwise less prone to failure. It is also particularly economical from an operational point of view, since compressed air is available in practically every wood processing company.

Mit Vorteil ist die von der Spanneinrichtung von der Seite auf das Profil ausgeübte Kraft ein Mehrfaches der von der Drückeinrichtung in vertikaler Richtung ausgeübten Kraft, so daß sichergestellt ist, daß nach Freigabe aus der Drückeinrichtung die Stäbe des Profils sich nicht wieder zurückverformen oder gegeneinander verschieben.Advantageously, the force exerted by the tensioning device from the side onto the profile is a multiple of the force exerted by the pressing device in the vertical direction, so that it is ensured that, after being released from the pressing device, the bars of the profile do not deform back or move against one another.

Weiterhin ist es vorteilhaft, wenn die Unterlage in dem Wagen und/oder die Druckstücke der Drückeinrichtung als der Profilkontur angepaßte Schablonen ausgebildet und gegen Schablonen für andere Profilkonturen austauschbar sind. Hierdurch wird ein Minimum an Rüstzeit beim Umstellen auf andere Profi le erreicht.Furthermore, it is advantageous if the base in the carriage and / or the pressure pieces of the pressing device are designed as templates adapted to the profile contour and can be exchanged for templates for other profile contours. As a result, a minimum set-up time is achieved when switching to other profiles.

Ebenso ist es von Vorteil, wenn die Elektroden der HF-Einrichtung an Haltern angeordnet und auf unterschiedliche Profilkonturen einstellbar sind, so daß bei Umstellung auf andere Profile auch an der HF-Einrichtung nur geringe Rüstzeiten erforderlich sind.It is also advantageous if the electrodes of the HF device are arranged on holders and can be adjusted to different profile contours, so that only short set-up times are required on the HF device when changing over to other profiles.

Schließlich sind nach einem weiteren Ausführungsbeispiel der Erfindung die Elektroden der HF-Einrichtung mit als Distanzhalter wirkenden Gleitschuhen versehen, die den Stäben des Profils im Bereich der Leimfuge(n) anliegen. Dabei ist es weiterhin zweckmäßig, wenn die Elektroden unter sie an die Leimfuge(n) andrückender Federkraft stehen. Hiermit ist gewährleistet, daß einerseits die Elektroden stets so nah als mögl ich an der Leimfuge(n) angeordnet sind und andererseits stets den gleichen Abstand zur Leimfuge(n) aufweisen. Dies ist für die Qualität der Verleimung von entscheidender Bedeutung.Finally, according to a further exemplary embodiment of the invention, the electrodes of the HF device are provided with sliding shoes which act as spacers and which bear against the bars of the profile in the region of the glue joint (s). It is also expedient if the electrodes are under them by spring force pressing against the glue joint (s). This ensures that, on the one hand, the electrodes are always arranged as close as possible to the glue joint (s) and, on the other hand, are always at the same distance from the glue joint (s). This is crucial for the quality of the gluing.

Nachstehend ist die Erfindung anhand eines in der Zeichnung schematisch wiedergegebenen Ausführungsbeispiels beschrieben.The invention is described below with reference to an exemplary embodiment shown schematically in the drawing.

In der Zeichnung zeigen:

  • Figur 1 Einen Querschnitt durch die Vorrichtung im Bereich der Drückeinrichtung;
  • Figur 2 eine Seitenansicht hierzu;
  • Figur 3 einen Querschnitt im Bereich der HF-Einrichtung und
  • Figur 4 eine ausschnittsweise Seitenansicht im Bereich der HF-Einrichtung.
The drawing shows:
  • 1 shows a cross section through the device in the area of the pressing device;
  • Figure 2 is a side view of this;
  • 3 shows a cross section in the area of the RF device and
  • Figure 4 is a partial side view in the area of the RF device.

Bei dem in der Zeichnung dargestellten Ausführungsbeispiel soll ein I-Profil 1 verleimt werden. Die dieses Profil 1 bildenden Stäbe bestehen aus dem Steg 2 und zwei an dessen Längsseiten anschließenden Gurten 3.In the embodiment shown in the drawing, an I-profile 1 is to be glued. The bars forming this profile 1 consist of the web 2 and two straps 3 adjoining its longitudinal sides.

Die Vorrichtung weist zunächst eine Fördereinrichtung in Form eines Wagens 8 auf, der mittels Rollen 6, 7 auf Schienen 4, 5 verfahrbar ist. Hierbei ist wenigstens eine Rolle 7 als Führungsrolle, beispielsweise mit doppeltem Spurkranz ausgebildet, um den Wagen 8 möglichst spielfrei zu führen. Stattdessen können natürlich auch Bordrollen vorgesehen sein. Der Wagen 8 besitzt einen Boden 9 und einander gegenüberliegende Seitenwangen 10, 11, zwischen denen die Stäbe des Profils 1 aufgenommen werden. Auf dem Boden 9 des Wagens 8 befindet sich eine Unterlage 12 in Form einer der unteren Profilkontur angepaßten Schablone. Eine der Seitenwangen - beim gezeigten Ausführungsbeispiel die Seitenwange 11 - weist eine Spanneinrichtung auf, die in der Zeichnung durch eine Spannfläche 13 und einen Richtungspfeil 14 schematisch angedeutet ist. Diese Spanneinrichtung wirkt von der Seite her auf den linken Gurt 3 des Profils 1, während die andere Seitenwange - gegebenenfalls unter Zwischenlage eines Hol zbrettes oder dgl. als Widerlager für den anderen Gurt 3 dient.The device initially has a conveyor in the form of a carriage 8 which can be moved on rails 4, 5 by means of rollers 6, 7. Here, at least one roller 7 is designed as a guide roller, for example with a double flange, in order to guide the carriage 8 with as little play as possible. Instead, on-board castors can of course also be provided. The carriage 8 has a bottom 9 and mutually opposite side walls 10, 11, between which the bars of the profile 1 are received. On the floor 9 of the carriage 8 there is a base 12 in the form of a template adapted to the lower profile contour. One of the side cheeks - the side cheek 11 in the exemplary embodiment shown - has a tensioning device, which is indicated schematically in the drawing by a tensioning surface 13 and a directional arrow 14. This tensioning device acts from the side on the left belt 3 of the profile 1, while the other side cheek - optionally with the interposition of a wooden board or the like. Serves as an abutment for the other belt 3.

Die Vorrichtung weist ferner eine ortsfeste Drückeinrichtung 15 auf, die beim gezeigten Ausführungsbeispiel aus mehreren mit Abstand hintereinander angeordneten, galgenförmigen Trägern 16 (Figur 1 uns 2) besteht, an deren Balken je ein mit dem Richtungspfeil 17 schematisch angedeuteter vertikaler Druckzylinder angeordnet ist. Die Druckzylinder wirken über ein oder mehrere Druckstücke 18 auf die Oberseite des Stegs 2 und der Gurte 3, so daß diese unter gleicher Andrückkraft stehen. Auch das Druckstück 18 kann als Schablone entsprechend der oberen Profil kontur ausgebildet sein. Innerhalb der Drückeinrichtung 15 werden der Steg 2 und die Gurte 3 mittels der Druckzylinder 17 gegen die Unterlage 12 gepreßt und dabei sowohl gerichtet als auch gegenienander ausgerichtet. Danach wird die Spanneinrichtung 13, 14 in Betrieb gesetzt, und das Profil 1 seitlich verspannt, wobei die Spannkraft etwa das dreifache der Drückkraft beträgt. Danach werden die Druckzylinder 17 in ihre Ausgangslage gefahren, der Wagen also von der Drückeinrichtung 16 freigegeben, so daß er zu der in Figur 3 wiedergegebenen HF-Einrichtung verfahren werden kann.The device also has a stationary pushing device 15, which in the exemplary embodiment shown consists of a plurality of gallowshaped supports 16 (FIGS. 1 and 2) arranged one behind the other at a distance, each of which has a vertical pressure cylinder schematically indicated by the directional arrow 17. The pressure cylinders work over one or more Thrust pieces 18 on the top of the web 2 and the straps 3 so that they are under the same pressing force. The pressure piece 18 can be designed as a template according to the upper profile contour. Within the pressing device 15, the web 2 and the belts 3 are pressed against the base 12 by means of the pressure cylinders 17 and are both directed and aligned with one another. Then the clamping device 13, 14 is put into operation, and the profile 1 is clamped laterally, the clamping force being approximately three times the pressing force. The printing cylinders 17 are then moved into their starting position, that is to say the carriage is released by the pressing device 16, so that it can be moved to the HF device shown in FIG. 3.

Die HF-Einrichtung 19 weist zwei obere Elektroden 20 als Heißelektroden und zwei untere Elektroden 21 als Kaltelektroden auf, zwischen denen das Profil 1 mit seinem Steg 2 mittels des Wagens 8 hindurchbewegt wird. Wie aus Figur 4 ersichtlich, weisen die Elektroden 20, 21 zumindest an ihren Enden Gleitschuhe 22 auf, die im Einlaufbereich abgeschrägt und als Distanzhalter zum Steg 2 bzw. zu den Gurten 3 dienen. Vorzugsweise stehen die Elektroden in vertikaler und horizontaler Richtung unter einer Federkraft, so daß durch die als Distanzhalter wirkenden Gleitschuhe 22 ein stets gleichbleibender Abstand zur Leimfuge 24 (s. Figur 3) gewährleistet ist. Der gleichmäßige Andruck kann in einfacher Weise dadurch gewährleistet werden, daß die Elektroden 20 über ein Gelenk 25 an einem Halter 26 sitzen, der seinerseits unter Wirkung einer senkrecht angeordneten Feder steht. Damit können zugleich die Lage der Elektroden 20, 21 an unterschiedliche Profi I formen angepaßt werden.The HF device 19 has two upper electrodes 20 as hot electrodes and two lower electrodes 21 as cold electrodes, between which the profile 1 with its web 2 is moved by means of the carriage 8. As can be seen from FIG. 4, the electrodes 20, 21 have sliding shoes 22 at least at their ends, which are chamfered in the inlet area and serve as spacers to the web 2 or to the belts 3. The electrodes are preferably under a spring force in the vertical and horizontal directions, so that a constant spacing from the glue joint 24 (see FIG. 3) is ensured by the sliding shoes 22 acting as spacers. The uniform pressure can be ensured in a simple manner in that the electrodes 20 sit on a holder 26 via a joint 25, which in turn is under the action of a vertically arranged spring. Thus, the position of the electrodes 20, 21 can be adapted to different Profi I shapes.

Claims (12)

1. Vorrichtung zum Verleimen von Holzprofilen aus Stabmaterial, z. B. T- undl-Profilen mittels Hochfrequenz, bestehend aus einer die Stäbe des Profils ausgerichtet aufnehmenden Unterlage, einer von der Seite in Richtung auf die Leimfuge (n) wirkenden Spanneinrichtung und einer das eingespannte Profil zwischen ortsfesten Elektroden der HF-Einrichtung vorbeiführenden Fördereinrichtung, dadurch gekennzeichnet,
daß die Fördereinrichtung ein das Profil (1) zwischen seinen Seitenwangen (10, 11) und Boden (9) aufnehmender Wagen (8) ist, dessen Länge der größten Länge der zur Verarbeitung kommenden Profile entspricht und von dessen Seitenwangen wenigstens eine die Spanneinrichtung (13, 14) aufweist, und daß in Förderrichtung vor der HF-Einrichtung (19) eine ortsfeste Drückeinrichtung (15) zum Richten der Stäbe (2, 3) des Profils (1) durch Andrücken gegen die Unterlage (12) und gleichzeitigen Ausrichten derselben in ihrer Relativlage zueinander angeordnet ist, wobei zunächst die Drückeinrichtung (15) und erst nach deren Arbeitstakt die Spanneinrichtung (13, 14) in Tätigkeit tritt, die das Profil (1) auch nach Freigabe aus der ortsfesten Drückeinrichtung in der ausgerichteten Lage hält.1. Device for gluing wooden profiles from rod material, for. B. T- and I-profiles by means of high frequency, consisting of an underlay supporting the bars of the profile, a tensioning device acting from the side in the direction of the glue joint (s) and a conveying device passing the clamped profile between stationary electrodes of the HF device, characterized,
that the conveyor is a profile (1) between its side walls (10, 11) and bottom (9) receiving carriage (8), the length of which corresponds to the greatest length of the profiles to be processed and at least one of the side devices of the tensioning device (13 , 14), and that in the conveying direction in front of the HF device (19) a stationary pushing device (15) for straightening the rods (2, 3) of the profile (1) are arranged in their relative position by pressing against the support (12) and simultaneous alignment thereof, the pressing device (15) first and only after its working cycle the clamping device (13, 14) comes into action that keeps the profile (1) in the aligned position even after release from the stationary pressing device. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Drückeirrichtung (15) aus mehreren über die Länge des Profils (1) verteilt angeordneten, auf die Stäbe (2, 3) des Profils wirkenden Druckzylindern (17) besteht.2. Device according to claim 1, characterized in that the pressing device (15) consists of a plurality of distributed over the length of the profile (1) arranged on the rods (2, 3) of the profile acting pressure cylinders (17). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß jedem Druckzylinder (17) ein den Oberseiten der Stäbe (2, 3) des Profils (1) in ihrer Relativlage zueinander angepaßtes Druckstück (18) zugeordnet ist.3. Apparatus according to claim 2, characterized in that each pressure cylinder (17) is assigned to the upper sides of the rods (2, 3) of the profile (1) in their relative position to each other adapted pressure piece (18). 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Wagen (8) auf . Schienen (4, 5) geführt ist, die zwischen einer Aufgabestation, der Drückeinrichtung (15), der HF-Einrichtung (19) und einer Entnahmestation verlegt sind.4. Device according to one of claims 1 to 3, characterized in that the carriage (8). Rails (4, 5) are guided, which are laid between a feed station, the pressing device (15), the HF device (19) and a removal station. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Wagen (8) in einer endlosen Bahn von der Aufgabe- zu der Entnahmestation und von dieser zurück zur Aufgabestation geführt ist.5. Device according to one of claims 1 to 4, characterized in that the carriage (8) is guided in an endless path from the task to the removal station and from this back to the loading station. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Spanneinrichtung (13, 14) aus ein oder mehr an einer Seitenwange (11) des Wagens (8) angeordneten pneumatischen Druckkammern besteht.6. Device according to one of claims 1 to 5, characterized in that the clamping device (13, 14) consists of one or more on one side cheek (11) of the carriage (8) arranged pneumatic pressure chambers. 7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die von der Spanneinrichtung (13, 14) von der Seite auf das Profil (1) ausgeübte Kraft ein Mehrfaches der von der Drückeinrichtung (15) in vertikaler Richtung ausgeübten Kraft ist.7. Device according to one of claims 1 to 6, characterized in that the force exerted by the clamping device (13, 14) from the side on the profile (1) is a multiple of the force exerted by the pressing device (15) in the vertical direction . 8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Kraft der Spanneinrichtung (13, 14) etwa das Dreifache der Kraft der Drückeinrichtung (15) ist.8. The device according to claim 7, characterized in that the force of the tensioning device (13, 14) is approximately three times the force of the pressing device (15). 9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Unterlage (12) in dem Wagen (8) und/oder die Druckstücke (18) der Drückeinrichtung (15) als der Profilkontur angepaßte Schablone ausgebildet und gegen Schablonen für andere Profilkonturen austauschbar sind.9. Device according to one of claims 1 to 8, characterized in that the base (12) in the carriage (8) and / or the pressure pieces (18) of the pressing device (15) as a profile contour adapted template and against templates for others Profile contours are interchangeable. 10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Elektroden (20, 21) der HF-Einrichtung (19) an Haltern (26) angeordnet und auf unterschiedliche Profilkonturen einstellbar sind.10. Device according to one of claims 1 to 9, characterized in that the electrodes (20, 21) of the RF device (19) on holders (26) are arranged and adjustable to different profile contours. 11. Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Elektroden (20, 21) der HF-Einrichtung mit als Distanzhalter wirkenden Gleitschuhen (22) versehen sind, die den Stäben (2, 3) des Profils (1) im Bereich der Leimfuge(n) (24) einliegen.11. The device according to one of claims 1 to 10, characterized in that the electrodes (20, 21) of the HF device are provided with slide shoes (22) acting as a spacer, which the rods (2, 3) of the profile (1) lay in the area of the glue joint (s) (24). 12. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Elektroden (20, 21) unter sie an die Leimfuge(n) (24) andrückender Federkraft stehen.12. The device according to one of claims 1 to 11, characterized in that the electrodes (20, 21) are under it to the glue joint (s) (24) pressing spring force.
EP81106424A 1980-09-30 1981-08-19 Device for glueing profiles of wood beams Expired EP0048812B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81106424T ATE6351T1 (en) 1980-09-30 1981-08-19 DEVICE FOR GLUING WOODEN PROFILES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3036793A DE3036793C1 (en) 1980-09-30 1980-09-30 Device for gluing wooden profiles
DE3036793 1980-09-30

Publications (2)

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EP0048812A1 true EP0048812A1 (en) 1982-04-07
EP0048812B1 EP0048812B1 (en) 1984-02-22

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EP81106424A Expired EP0048812B1 (en) 1980-09-30 1981-08-19 Device for glueing profiles of wood beams

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US (1) US4366020A (en)
EP (1) EP0048812B1 (en)
AT (1) ATE6351T1 (en)
CA (1) CA1169637A (en)
DE (1) DE3036793C1 (en)
DK (1) DK148802C (en)
FI (1) FI812594L (en)
NO (1) NO151030C (en)

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EP0163781A1 (en) * 1984-05-02 1985-12-11 Groot Lemmer B.V. Method and device for manufacturing a composite prestressed wooden beam
EP0102446B1 (en) * 1982-05-14 1987-06-24 Hördener Holzwerk GmbH Device for the production of wooden components subjected to bending

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US4502200A (en) * 1982-03-08 1985-03-05 Atlantic Richfield Company Method of preparing lightweight mirror module
US4468848A (en) * 1982-03-08 1984-09-04 Atlantic Richfield Company Method of making combination curved-lightweight mirror module
US4468849A (en) * 1982-03-08 1984-09-04 Atlantic Richfield Company Method of making a curved mirror module
US4669184A (en) * 1984-10-29 1987-06-02 Gang-Nail Systems Building truss fabrication apparatus
US5245154A (en) * 1990-09-18 1993-09-14 Daiken Trade & Industry Co., Ltd. Method and apparatus for heating a wood material
SE507235C2 (en) * 1995-03-28 1998-04-27 Tarkett Ab Ways to prepare a building element for the manufacture of a laminated wooden floor
CN104441109B (en) * 2014-12-24 2017-02-22 益阳海利宏竹业有限公司 Felt-board machine

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EP0163781A1 (en) * 1984-05-02 1985-12-11 Groot Lemmer B.V. Method and device for manufacturing a composite prestressed wooden beam

Also Published As

Publication number Publication date
EP0048812B1 (en) 1984-02-22
NO813280L (en) 1982-03-31
NO151030C (en) 1985-01-30
DK430581A (en) 1982-03-31
ATE6351T1 (en) 1984-03-15
NO151030B (en) 1984-10-22
US4366020A (en) 1982-12-28
DK148802C (en) 1986-04-14
DE3036793C1 (en) 1982-06-16
FI812594L (en) 1982-03-31
CA1169637A (en) 1984-06-26
DK148802B (en) 1985-10-07

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