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WO2005077654A1 - Device and method for producing sandwich panels - Google Patents

Device and method for producing sandwich panels Download PDF

Info

Publication number
WO2005077654A1
WO2005077654A1 PCT/EP2005/001474 EP2005001474W WO2005077654A1 WO 2005077654 A1 WO2005077654 A1 WO 2005077654A1 EP 2005001474 W EP2005001474 W EP 2005001474W WO 2005077654 A1 WO2005077654 A1 WO 2005077654A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover plate
honeycomb
gluing
insert
honeycomb insert
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.)
Ceased
Application number
PCT/EP2005/001474
Other languages
German (de)
French (fr)
Inventor
Wolfgang Daun
Ulrich Baumhus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heinrich Kuper GmbH and Co KG
Original Assignee
Heinrich Kuper GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heinrich Kuper GmbH and Co KG filed Critical Heinrich Kuper GmbH and Co KG
Publication of WO2005077654A1 publication Critical patent/WO2005077654A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/024—Honeycomb
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/70—Automated, e.g. using a computer or microcomputer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2375/00—Polyureas; Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/146—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers whereby one or more of the layers is a honeycomb structure
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels
    • E06B3/7017—Door leaves characterised by the filling between two external panels of grating type
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/82—Flush doors, i.e. with completely flat surface
    • E06B3/822—Flush doors, i.e. with completely flat surface with an internal foursided frame
    • E06B3/825—Flush doors, i.e. with completely flat surface with an internal foursided frame with a wooden frame

Definitions

  • the invention relates to a device and to a manufacturing method for manufacturing sandwich panels.
  • Sandwich panels are known from the prior art. They consist of a strip frame, which forms a free space in which honeycomb inserts, for example made of cardboard or paper, are inserted. The last frame is connected to an upper cover plate and a lower cover plate together with the honeycomb inserts. It is thus possible to form relatively thick furniture elements which - compared to conventional blockboard or chipboard - weigh considerably less and are cheaper to manufacture.
  • the lower weight results in easier handling, lower package weights, a reduction in packaging effort and improved handling. A particularly favorable effect is that the lower weight makes it easier to transport with portable furniture.
  • the invention has for its object to provide a method and an apparatus of the type mentioned, which enables automated manufacture of sandwich panels with a simple structure and easy handling.
  • a joining device by means of which a strip frame made of longitudinal bars and cross bars can be produced automatically.
  • the longitudinal ledgers and the transverse ledgers are transported, positioned, glued and pressed using suitable means of transport. No further manual effort is required for this.
  • a honeycomb insert is then automatically inserted using a gripping device for gripping, transporting and inserting the honeycomb insert.
  • the device according to the invention has a subordinate gluing device, by means of which the upper and lower sides of the strip frame and the honeycomb insert are glued.
  • the gluing can take place, for example, by means of glue application rollers, between which the last frame is carried out together with the honeycomb insert used.
  • a lifting and transport device is also provided in order to lift and transport an upper cover plate from a preparation position (stacking position, magazine position, etc.).
  • the top cover plate is automatically placed on the last frame with the inserted honeycomb insert and pressed on.
  • the top cover plate adheres to the last frame and the honeycomb insert with a sufficiently high adhesive force to subsequently lift the overall arrangement of the top cover plate, last frame and honeycomb insert by means of a further (or the same) lifting and transport device and place it on a lower cover plate. This is in a magazine position or in a processing position into which it was transported from a stack or a magazine.
  • the device for producing the sandwich panel further comprises a press for the final pressing of the sandwich panel, it being understood that further transport means or transport devices may be provided.
  • the procedure according to the invention thus makes it possible to automatically produce sandwich panels and, in particular, to compare the handling of the individual components. state of the art - drastically reduced. For handling, it is sufficient to provide a single lifting and transport device or a single configuration of a lifting and transport device which lifts the top cover plate. Additional means for handling the last frame with the inserted honeycomb inlays are not necessary.
  • the lifting and transport device comprises a vacuum lifting unit. This leads to damage-free handling of the top cover plate. Furthermore, it is possible to manufacture different dimensions of top cover plates or sandwich plates on the system, since such a vacuum lifting unit can be equipped with a large number of vacuum lifters, which are used accordingly.
  • a PUR adhesive is preferably applied by means of the gluing device.
  • the design of the adhesive and the adaptation of its technical characteristics can be easily adapted to the respective requirements. It is crucial that after the top cover plate has been initially placed on the strip frame provided with the honeycomb inlays, this entire arrangement can be safely raised again and placed on the bottom cover plate.
  • the joining device for producing the last frame from longitudinal bars and cross bars, it is possible to glue the joining surfaces between the longitudinal bars and the cross bars accordingly. However, it is also possible to glue the surfaces of the longitudinal bars and / or the cross bars facing the honeycomb insert, so that the honeycomb insert does better after being inserted into the compartment or compartments of the last frame adheres and can therefore be securely positioned during the manufacture of the last frame.
  • the gripping device for inserting the at least one honeycomb insert into the at least one compartment of the last frame is preferably provided with a plurality of gripper fingers which can each be inserted into the honeycomb of the honeycomb insert.
  • the distance between the gripper fingers can be changed to lift and insert the honeycomb insert.
  • the honeycomb insert is thus pressed together, so that it has smaller external dimensions and can be inserted into the compartment of the last frame, and is also held securely by pressing the gripper fingers together.
  • the gripper fingers are preferably approximate in two dimensions, i.e., in the longitudinal direction and in the transverse direction of the last frame or the previously cut honeycomb insert.
  • the honeycomb insert it is thus possible to insert all of the required honeycomb inserts into the corresponding compartments of the last frame at the same time. Manual reworking or the like is not necessary, since after the gripper fingers are removed, the honeycomb insert automatically re-forms its original dimension. A jamming of edge areas or an uneven insertion is therefore completely ruled out.
  • the strip frame is preferably on a flat conveyor belt during the joining of the longitudinal bars and the cross bars as well as during the insertion of the honeycomb insert, so that the entire arrangement can be made flat.
  • Fig. 1 is a simplified, perspective 'view of a known prior art sandwich panel
  • Fig. 7 is a partial perspective sectional view of a structure of a sandwich panel according to the invention.
  • the sandwich panel shown in FIG. 1 comprises an upper cover panel 1 which is placed on a strip frame. This consists of two parallel longitudinal bars 2 and at least two transverse bars 3. In the compartment formed from the longitudinal bars 2 and the transverse bars 3, a honeycomb insert 5 is inserted, which consists of paper or cardboard and a honeycomb-like structure in a plan view from a preferred manner has hexagonal honeycombs.
  • the reference number 4 indicates a reinforcing insert, which is additionally e.g. can be used to mount fittings, door locks or the like in a door.
  • FIG. 2 shows an upper cover plate which can be raised by means of a vacuum lifting unit.
  • FIG. 3 shows a state in which a strip frame made of longitudinal bars 2 and cross bars 3 has been joined. It's him- recognizable that a total of three crossbars 3 are inserted between the two parallel longitudinal bars 2.
  • a honeycomb insert 5 is inserted into the last frame. The strip frame is glued together with the honeycomb insert 5 on its top and on its underside. It rests, for example, on disc rollers or the like in order not to impair the glue application on the underside of the strip frame and the honeycomb inlays.
  • the top cover plate 1 is placed on the last frame and the honeycomb insert 5 and pressed down a little.
  • FIG. 4 illustrates that a bottom cover plate 6 is provided at an assembly position.
  • the arrangement formed in FIG. 3 is now lifted by means of the vacuum lifting unit 7 and, as shown in FIG. 5, placed on the lower cover plate 6.
  • the gluing of the last frame and the honeycomb insert 5 is sufficient in its adhesive force to be able to lift the entire arrangement and to place it on the lower cover plate 6 after the upper cover plate has been put on and pressed on.
  • the entire arrangement is fed to a press.
  • a press This can be a roller press, for example with calender rollers, or a multi-daylight press.
  • the arrangement is pressed accordingly in order to obtain the finished sandwich panel.
  • FIG. 7 shows a perspective partial sectional view of the structure of a sandwich panel according to the invention with a strip frame which comprises longitudinal bars 2 and cross bars 3, not shown.
  • a honeycomb insert 5 is inserted into the last frame, the gripping device according to the invention described above being used for the insertion.
  • the strip frame with an upper cover plate 1 and a lower cover plate 2 glued.
  • An upper veneer 11 can be applied to the upper cover plate 1, the upper side of the lower cover plate 6 can be provided with a lower veneer 12.
  • the longitudinal bars and cross bars can be made from materials such as MDF, solid wood or chipboard.
  • the top cover plate 1 and the bottom cover plate 6 can have thicknesses of 5 to 10 mm.
  • An upper and lower veneer 11 or 12 can be glued to the surfaces (outer surfaces) of the upper cover plate 1 or the lower cover plate 6. Instead of the veneers, other laminating materials (foil, lacquer or the like) can also be used.
  • the top cover plate 1 and the bottom cover plate 2 can be made of hardboard, chipboard or HDF. It goes without saying that the side visible surfaces can also be veneered or covered with laminating material or the like.
  • FIGS. 8a to 8c The invention is described below on the basis of a schematic representation of an overall system in conjunction with FIGS. 8a to 8c:
  • longitudinal bars 2 and cross bars 3 are first fed into the station 01.1 and positioned like a ladder.
  • the longitudinal bars 2 are received in a stack magazine, the cross bars 3 are placed on circumferential conveyor belts at a distance from one another.
  • the longitudinal bars 2 are at a distance from the cross bars 3.
  • the longitudinal bars and cross bars are transferred to a conveyor belt 8.
  • a plurality of stops 9 are provided, which can be moved vertically and are used for the frontal engagement of the longitudinal bars 2 and for the respective positioning of the cross bars 3.
  • the longitudinal bolts 2 and the transverse bolts 3 are accordingly stopped and positioned. If the longitudinal bars 2 and the transverse bolt 3 have reached their assembly position, the conveyor belt 8 is stopped.
  • the joints are glued accordingly (not shown). Subsequently, the last frame is joined by lateral pressing.
  • the adhesive immediately fixes the longitudinal bars and cross bars 2, 3 so that a finished last frame can be transferred to another conveyor belt at station 01.3.
  • the compressed material of the honeycomb insert is drawn into a honeycomb expander dryer 02.1 from a honeycomb plate supply 02.2.
  • the previously folded honeycombs are set up and dried by the warm air so that they are fixed.
  • a cutting device at the end of the honeycomb expander dryer 02.1 cuts corresponding fixed dimensions of the honeycomb inlays 5 from the endless honeycomb carpet thus created. The size of these corresponds to the compartments of the last frame.
  • the separated and cut honeycomb inserts 5 are fed to a station 03.3. There you will be raised by grippers 10, which are provided with gripper fingers pointing downwards, which engage in the honeycomb of the honeycomb inserts 5. After being inserted into the honeycomb insert, the gripper fingers are brought closer together so that they compress the honeycomb insert and thus behave. By transferring the honeycomb inserts 5 hanging on the grippers 10 into the last frame, these are inserted into the last frame in station 03.1. It is inserted on a flat conveyor belt so that flatness is guaranteed.
  • the last frame with the honeycomb inserts used is transferred to a 04.0 inclined roller conveyor.
  • the last frame is positioned exactly.
  • the strip frame is subsequently provided with adhesive in station 05.0 on the top and on the bottom. This is done by means of upper and lower rollers, by means of which the adhesive is applied.
  • the glued strip frame is subsequently transported on a cone roller conveyor in order to have only a small contact area by means of conically shaped transport rollers so that the glue application on the underside of the strip frame is not impaired.
  • a stack of upper cover plates or lower cover plates is provided, for example by means of the forklift shown.
  • the stack is transferred to a station 06.2.
  • a vacuum lifting unit an upper cover plate or lower cover plate is lifted off in station 06.3 and transferred to station 06.4.
  • an upper cover plate is placed on station 06.5 by means of a vacuum lifting unit 06.8, which is mounted on a portal, while a lower cover plate is transferred to station 06.7.
  • the vacuum lifting unit now grips the top cover plate from station 06.5 and places it on the glued strip frame. After a short press, the vacuum lifting unit lifts the top cover plate together with the last frame and places it on the bottom cover plate in station 06.7.
  • the sandwich panel is now fully assembled.
  • the sandwich plate In the stations 07.0 and 07.8 the sandwich plate is transported on and calender presses 09.1 and 09.2 are fed. This creates a firm bond to the finished sandwich panel. This leaves the calender presses 09.1 and 09.2 and is transferred to a transport station 10.0. From this, stacking takes place in stations 11.2 and 11.3, this being done by means of vacuum lifting units in station 11.1. It goes without saying that before or after the stacking in stations 11.1 to 11.3, the edges can be trimmed or the sandwich panels divided into smaller individual sandwich panels.

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  • Laminated Bodies (AREA)
  • Making Paper Articles (AREA)

Abstract

The invention relates to a method and a device for producing sandwich panels. The sandwich panels are fully automatically produced by assembling a wooden frame from longitudinal strips (2) and cross strips (3) into whose compartments honey-comb inserts (5) are automatically inserted. A front panel (1) is placed onto the frame by means of a lifting unit (7) and pressed against it. The front panel (1) is then lifted by means of the lifting unit (7) and placed onto a back panel (6), thereby producing the finished sandwich panel arrangement.

Description

Vorrichtung und Verfahren zur Herstellung von Sandwichplatten Device and method for manufacturing sandwich panels

Beschreibungdescription

Die Erfindung bezieht sich auf eine Vorrichtung sowie auf ein Herstellungsverfahren zur Herstellung von Sandwichplatten.The invention relates to a device and to a manufacturing method for manufacturing sandwich panels.

Sandwichplatten sind aus dem Stand der Technik bekannt. Sie bestehen aus einem Leistenrahmen, welcher einen Freiraum bildet, in welchem Wabeneinlagen, beispielsweise aus Pappe oder Papier, eingelegt sind. Der Leistenrahmen ist zusammen mit den Wabeneinlagen mit einer Oberdeckplatte und einer Unterdeckplatte verbunden. Es ist somit möglich, relativ dicke Möbelelemente zu bilden, welche - im Vergleich zu herkömmlichen Tischlerplatten oder Pressspanplatten - erheblich weniger wiegen und preisgünstiger herstellbar sind. Aus dem geringeren Gewicht ergibt sich eine einfachere Handhabung, geringere Packstückgewichte, eine Reduzierung des Verpackungsaufwandes sowie eine verbesserte Handhabbarkeit. Ein besonders günstiger Effekt liegt auch darin, dass das geringere Gewicht zu einer leichteren Transportierbarkeit bei Mitnahmemöbeln führt.Sandwich panels are known from the prior art. They consist of a strip frame, which forms a free space in which honeycomb inserts, for example made of cardboard or paper, are inserted. The last frame is connected to an upper cover plate and a lower cover plate together with the honeycomb inserts. It is thus possible to form relatively thick furniture elements which - compared to conventional blockboard or chipboard - weigh considerably less and are cheaper to manufacture. The lower weight results in easier handling, lower package weights, a reduction in packaging effort and improved handling. A particularly favorable effect is that the lower weight makes it easier to transport with portable furniture.

Aus dem Stand der Technik ist es bekannt, Leistenrahmen manuell aus Längsriegeln und Querriegeln zusammenzusetzen und manuell die zugeschnittenen Wabeneinlagen einzufügen. Bereits hieraus ergibt sich ein erheblicher Arbeitsaufwand, der sich in entsprechenden Herstellungskosten widerspiegelt. Auch das Auflegen und Verleimen der Oberdeckplatte und der Unterdeckplatte erfordert sehr viel manuelle Arbeit.It is known from the prior art to assemble last frames manually from longitudinal bars and cross bars and to manually insert the cut honeycomb inserts. This already results in a considerable amount of work, which is reflected in corresponding manufacturing costs. Placing and gluing the top cover plate and the bottom cover plate also requires a lot of manual work.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren sowie eine Vorrichtung der eingangs genannten Art zu schaffen, welche bei einfachem Aufbau und einfacher Handhabbarkeit eine automatisierte Fertigung von Sandwichplatten ermöglicht.The invention has for its object to provide a method and an apparatus of the type mentioned, which enables automated manufacture of sandwich panels with a simple structure and easy handling.

Erfindungsgemäß wird die Aufgabe durch die Merkmale der unabhängigen Ansprüche gelöst, die jeweiligen Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.According to the invention the object is achieved by the features of the independent claims, the respective subclaims show further advantageous embodiments of the invention.

Hinsichtlich der Vorrichtung ist somit vorgesehen, dass zunächst eine Fügevorrichtung vorgesehen ist, mittels derer ein Leistenrahmen aus Längsriegeln und Querriegeln automatisch herstellbar ist. In der Fügevorrichtung werden die Längsriegel und die Querriegel durch geeignetes Transportmittel antransportiert, positioniert, beleimt und verpresst. Hierfür ist kein weiterer manueller Aufwand erforderlich. Anschließend erfolgt automatisch ein Einlegen einer Wabeneinlage mittels einer Greifvorrichtung zum Greifen, Transportieren und Einlegen der Wabeneinlage.With regard to the device, it is therefore provided that first a joining device is provided, by means of which a strip frame made of longitudinal bars and cross bars can be produced automatically. In the joining device, the longitudinal ledgers and the transverse ledgers are transported, positioned, glued and pressed using suitable means of transport. No further manual effort is required for this. A honeycomb insert is then automatically inserted using a gripping device for gripping, transporting and inserting the honeycomb insert.

Es versteht sich, dass erfindungsgemäß unterschiedlichste Ausgestaltungen von Leistenrahmen möglich sind. So ist es möglich, mehrere Querriegel vorzusehen, um die Stabilität von großen Sandwichplatten, insbesondere von relativ langen und relativ schmalen Sandwichplatten zu erhöhen. Es ist auch möglich, die Dimensionierung sowohl der Längsriegel als auch der Querriegel so zu wählen, dass durch die Vorrichtung größere Sandwichplatten gefertigt werden können, welche nachfolgend in kleinere Platten unterteilbar sind, indem die Sandwichplatten beispielsweise im Bereich der Querriegel gesägt werden. Dabei versteht sich insbesondere, dass auch Konstruktionen möglich sind, bei welchen mehrere, zueinander parallele Längsriegel, beispielsweise drei oder vier derartiger Längsriegel, mit einer entsprechenden Anzahl an Querriegeln verwendet werden.It goes without saying that, according to the invention, a wide variety of configurations of strip frames are possible. It is thus possible to provide a plurality of crossbars in order to increase the stability of large sandwich panels, in particular of relatively long and relatively narrow sandwich panels. It is also possible to choose the dimensioning of both the longitudinal bars and the transverse bars so that the device can be used to produce larger sandwich panels, which can subsequently be subdivided into smaller panels, for example by sawing the sandwich panels in the region of the cross bars. It is understood in particular that constructions are also possible in which a plurality of longitudinal bars parallel to one another, For example, three or four such longitudinal bars can be used with a corresponding number of cross bars.

Weiterhin weist die erfindungsgemäße Vorrichtung eine nachge- ordnete Beleimvorrichtung auf, mittels derer die Oberseiten und die Unterseiten des Leistenrahmens und der Wabeneinlage beleimt werden. Die Beleimung kann beispielsweise durch Leimauftragswalzen erfolgen, zwischen denen der Leistenrahmen zusammen mit der eingesetzten Wabeneinlage durchgeführt wird.Furthermore, the device according to the invention has a subordinate gluing device, by means of which the upper and lower sides of the strip frame and the honeycomb insert are glued. The gluing can take place, for example, by means of glue application rollers, between which the last frame is carried out together with the honeycomb insert used.

Erfindungsgemäß ist weiterhin eine Hebe- und Transporteinrichtung vorgesehen, um eine Oberdeckplatte von einer Bereitstellungsposition (Stapelposition, Magazinposition, etc.) abzuheben und zu transportieren. Die Oberdeckplatte wird dabei automatisch auf den Leistenrahmen mit der eingelegten Wabeneinlage aufgelegt und aufgedrückt. .According to the invention, a lifting and transport device is also provided in order to lift and transport an upper cover plate from a preparation position (stacking position, magazine position, etc.). The top cover plate is automatically placed on the last frame with the inserted honeycomb insert and pressed on. ,

Durch die Anfangshaftung des Klebers haftet dabei die Oberdeckplatte an dem Leistenrahmen und der Wabeneinlage mit einer ausreichend großen Haftkraft, um nachfolgend die Gesamtanordnung aus Oberdeckplatte, Leistenrahmen und Wabeneinlage mittels einer weiteren (oder derselben) Hebe- und Transporteinrichtung anzuheben und auf eine Unterdeckplatte aufzusetzen. Diese befindet sich in einer Magazinposition oder in einer Verarbeitungsposition, in welche sie aus einem Stapel oder einem Magazin transportiert wurde.Due to the initial adhesion of the adhesive, the top cover plate adheres to the last frame and the honeycomb insert with a sufficiently high adhesive force to subsequently lift the overall arrangement of the top cover plate, last frame and honeycomb insert by means of a further (or the same) lifting and transport device and place it on a lower cover plate. This is in a magazine position or in a processing position into which it was transported from a stack or a magazine.

Erfindungsgemäß umfasst die Vorrichtung zur Herstellung der Sandwichplatte weiterhin eine Presse zum Fertigpressen der Sandwichplatte, wobei es sich versteht, dass gegebenenfalls weitere Transportmittel oder Transporteinrichtungen vorgesehen sind.According to the invention, the device for producing the sandwich panel further comprises a press for the final pressing of the sandwich panel, it being understood that further transport means or transport devices may be provided.

Durch die erfindungsgemäße Vorgehensweise ist es somit möglich, Sandwichplatten automatisch herzustellen und insbesondere den Handhabungsaufwand der einzelnen Komponenten - vergli- chen mit dem Stand der Technik - drastisch zu reduzieren. Für die Handhabung ist es ausreichend, eine einzige Hebe- und Transportvorrichtung bzw. eine einzige Ausgestaltung einer Hebe- und Transportvorrichtung vorzusehen, welche die Oberdeckplatte anhebt. Zusätzliche Mittel, um den Leistenrahmen mit den eingelegten Wabeneinlagen zu handhaben, sind nicht erforderlich.The procedure according to the invention thus makes it possible to automatically produce sandwich panels and, in particular, to compare the handling of the individual components. state of the art - drastically reduced. For handling, it is sufficient to provide a single lifting and transport device or a single configuration of a lifting and transport device which lifts the top cover plate. Additional means for handling the last frame with the inserted honeycomb inlays are not necessary.

Eine besonders vorteilhafte Ausgestaltung der Erfindung ist dadurch gegeben, dass die Hebe- und Transportvorrichtung eine Vakuum-Hebeeinheit umfasst. Diese führt zu einer beschädigungsfreien Handhabung der Oberdeckplatte. Weiterhin ist es möglich, auf der Anlage unterschiedliche Dimensionierungen von Oberdeckplatten bzw. von Sandwichplatten zu fertigen, da eine derartige Vakuum-Hebeeinheit mit einer Vielzahl von Vakuum- Hebern ausgerüstet sein kann, die entsprechend zum Einsatz kommen.A particularly advantageous embodiment of the invention is given in that the lifting and transport device comprises a vacuum lifting unit. This leads to damage-free handling of the top cover plate. Furthermore, it is possible to manufacture different dimensions of top cover plates or sandwich plates on the system, since such a vacuum lifting unit can be equipped with a large number of vacuum lifters, which are used accordingly.

Mittels der Beleimvorrichtung wird erfindungsgemäß bevorzugter Weise ein PUR-Kleber aufgebracht. Es ist erfindungsgemäß auch möglich, einen PU-Kleber oder einen Heißschmelz-Kleber zu verwenden. Die Ausgestaltung des Klebers sowie die Anpassung seiner technischen Charakteristik kann in einfacher Weise an die jeweiligen Anforderungen angepasst werden. Entscheidend ist, dass nach dem anfänglichen Auflegen der Oberdeckplatte auf den mit den Wabeneinlagen versehenen Leistenrahmen diese gesamte Anordnung in sicherer Weise nochmals angehoben und auf die Unterdeckplatte aufgelegt werden kann.According to the invention, a PUR adhesive is preferably applied by means of the gluing device. According to the invention, it is also possible to use a PU adhesive or a hot-melt adhesive. The design of the adhesive and the adaptation of its technical characteristics can be easily adapted to the respective requirements. It is crucial that after the top cover plate has been initially placed on the strip frame provided with the honeycomb inlays, this entire arrangement can be safely raised again and placed on the bottom cover plate.

Mittels der Fügevorrichtung zur Herstellung des Leistenrahmens aus Längsriegeln und Querriegeln ist es möglich, die Fügeflächen zwischen den Längsriegeln und den Querriegeln entsprechend zu beleimen. Es ist jedoch auch möglich, die der Wabeneinlage zugewandten Flächen der Längsriegel und/oder der Querriegel ebenfalls zu beleimen, sodass die Wabeneinlage nach dem Einlegen in das Fach oder die Fächer des Leistenrahmens besser haftet und somit während der Herstellung des Leistenrahmens sicher positionierbar ist.By means of the joining device for producing the last frame from longitudinal bars and cross bars, it is possible to glue the joining surfaces between the longitudinal bars and the cross bars accordingly. However, it is also possible to glue the surfaces of the longitudinal bars and / or the cross bars facing the honeycomb insert, so that the honeycomb insert does better after being inserted into the compartment or compartments of the last frame adheres and can therefore be securely positioned during the manufacture of the last frame.

Die Greifvorrichtung zum Einlegen der zumindest einen Wabeneinlage in das zumindest eine Fach des Leistenrahmens ist bevorzugter Weise mit mehreren Greiferfingern versehen, welche jeweils in die Waben der Wabeneinlage einsteckbar sind. Zum Anheben und Einlegen der Wabeneinlage sind die Greiferfinger in ihrem Abstand veränderbar. Die Wabeneinlage wird somit zusammengedrückt, sodass sie zum einen geringere Außenabmessungen aufweist und in das Fach des Leistenrahmens einlegbar ist, und zum anderen durch das Zusammendrücken an den Greiferfingern sicher gehalten ist. Die Greiferfinger sind dabei bevorzugter Weise in zwei Dimensionen, d.h., in Längsrichtung und in Querrichtung des Leistenrahmens bzw. der vorher zugeschnittenen Wabeneinlage in ihrem Abstand annäherbar.The gripping device for inserting the at least one honeycomb insert into the at least one compartment of the last frame is preferably provided with a plurality of gripper fingers which can each be inserted into the honeycomb of the honeycomb insert. The distance between the gripper fingers can be changed to lift and insert the honeycomb insert. The honeycomb insert is thus pressed together, so that it has smaller external dimensions and can be inserted into the compartment of the last frame, and is also held securely by pressing the gripper fingers together. The gripper fingers are preferably approximate in two dimensions, i.e., in the longitudinal direction and in the transverse direction of the last frame or the previously cut honeycomb insert.

Erfindungsgemäß ist es somit möglich, sämtliche der benötigten Wabeneinlagen gleichzeitig in die entsprechenden Fächer des Leistenrahmens einzulegen. Eine manuelle Nacharbeit oder Ähnliches ist dabei nicht erforderlich, da sich nach dem Abziehen der Greiferfinger die Wabeneinlage selbständig wieder in ihre Ursprungsdimension zurückformt. Ein Verklemmen von Randbereichen oder ein ungleichmäßiges Einlegen scheidet somit gänzlich aus .According to the invention, it is thus possible to insert all of the required honeycomb inserts into the corresponding compartments of the last frame at the same time. Manual reworking or the like is not necessary, since after the gripper fingers are removed, the honeycomb insert automatically re-forms its original dimension. A jamming of edge areas or an uneven insertion is therefore completely ruled out.

Der Leistenrahmen liegt bevorzugter Weise während des Fügens der Längsriegel und der Querriegel sowie während des Einlegens der Wabeneinlage auf einem ebenen Transportband auf, sodass die gesamte Anordnung plan herstellbar ist.The strip frame is preferably on a flat conveyor belt during the joining of the longitudinal bars and the cross bars as well as during the insertion of the honeycomb insert, so that the entire arrangement can be made flat.

Erfindungsgemäß ist es somit möglich, in einer voll automatisierten, kontinuierlichen Fertigung Sandwichplatten so herzustellen, dass praktisch keine manuellen Arbeitsgänge erforderlich sind. Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:According to the invention, it is thus possible to produce sandwich panels in a fully automated, continuous production such that practically no manual operations are required. The invention is described below on the basis of exemplary embodiments in conjunction with the drawing. It shows:

Fig. 1 eine vereinfachte, perspektivische ' Darstellung einer aus dem Stand der Technik bekannten Sandwichplatte,Fig. 1 is a simplified, perspective 'view of a known prior art sandwich panel,

Fig. 2 bis 6 in vereinfachter Darstellung die Arbeitsabläufe zur Herstellung der erfindungsgemäßen Sandwichplatte,2 to 6 in a simplified representation, the work processes for producing the sandwich panel according to the invention,

Fig. 7 eine perspektivische Teil-Schnittansicht eines Aufbaues einer erfindungsgemäßen Sandwichplatte, undFig. 7 is a partial perspective sectional view of a structure of a sandwich panel according to the invention, and

Fig. 8a bis 8c eine perspektivische Darstellung der erfindungsgemäßen Gesamtanlage.8a to 8c a perspective view of the overall system according to the invention.

Die in Fig. 1 gezeigte Sandwichplatte umfasst eine Oberdeckplatte 1, welche auf einen Leistenrahmen aufgesetzt ist. Dieser besteht aus zwei zueinander parallelen Längsriegeln 2 sowie zumindest zwei Querriegeln 3. In das aus den Längsriegeln 2 und den Querriegeln 3 gebildete Fach ist eine Wabeneinlage 5 eingelegt, die aus Papier oder Pappe besteht und in der Draufsicht eine bienenwaben-ähnliche Struktur aus bevorzugter Weise sechseckigen Waben aufweist. Mit dem Bezugszeichen 4 ist eine Verstärkungseinlage angedeutet, welche zusätzlich z.B. bei einer Tür zur Montage von Beschlägen, Türschlössern oder ähnlichem dienen kann.The sandwich panel shown in FIG. 1 comprises an upper cover panel 1 which is placed on a strip frame. This consists of two parallel longitudinal bars 2 and at least two transverse bars 3. In the compartment formed from the longitudinal bars 2 and the transverse bars 3, a honeycomb insert 5 is inserted, which consists of paper or cardboard and a honeycomb-like structure in a plan view from a preferred manner has hexagonal honeycombs. The reference number 4 indicates a reinforcing insert, which is additionally e.g. can be used to mount fittings, door locks or the like in a door.

Die Fig. 2 bis • 6 zeigen in vereinfachter Darstellung die erfindungsgemäße Vorgehensweise sowie die hiermit verbundenen Arbeitsschritte:2 to 6 show a simplified representation of the procedure according to the invention and the associated work steps:

In Fig. 2 ist eine Oberdeckplatte gezeigt, die mittels einer Vakuum-Hebeeinheit anhebbar ist.2 shows an upper cover plate which can be raised by means of a vacuum lifting unit.

Die Fig. 3 zeigt einen Zustand, bei welchem ein Leistenrahmen aus Längsriegeln 2 und Querriegeln 3 gefügt wurde. Es ist er- kennbar, dass insgesamt drei Querriegel 3 zwischen die beiden parallelen Längsriegel 2 eingesetzt sind. In den Leistenrahmen ist eine Wabeneinlage 5 eingelegt. Der Leistenrahmen ist zusammen mit der Wabeneinlage 5 an seiner Oberseite und an seiner Unterseite beleimt. Er ruht beispielsweise auf Scheibenwalzen oder ähnlichem, um den Leimauftrag auf der Unterseite des Leistenrahmens und der Wabeneinlagen nicht zu beeinträchtigen.FIG. 3 shows a state in which a strip frame made of longitudinal bars 2 and cross bars 3 has been joined. It's him- recognizable that a total of three crossbars 3 are inserted between the two parallel longitudinal bars 2. A honeycomb insert 5 is inserted into the last frame. The strip frame is glued together with the honeycomb insert 5 on its top and on its underside. It rests, for example, on disc rollers or the like in order not to impair the glue application on the underside of the strip frame and the honeycomb inlays.

Mittels der Vakuum-Hebeeinheit 7 wird, wie in Fig. 3 gezeigt, die Oberdeckplatte 1 auf den Leistenrahmen und die Wabeneinlage 5 aufgelegt und etwas angedrückt.By means of the vacuum lifting unit 7, as shown in FIG. 3, the top cover plate 1 is placed on the last frame and the honeycomb insert 5 and pressed down a little.

Die Fig. 4 verdeutlicht, dass eine Unterdeckplatte 6 an einer Montageposition bereitgestellt ist. Die in Fig. 3 gebildete Anordnung wird nunmehr mittels der Vakuum-Hebeeinheit 7 angehoben, und, so wie dies in Fig. 5 gezeigt ist, auf die Unterdeckplatte 6 aufgelegt. Die Beleimung des Leistenrahmens sowie der Wabeneinlage 5 ist ausreichend in ihrer Haftkraft, um nach dem Aufsetzen und Andrücken der Oberdeckplatte gemäß Fig. 3 die gesamte Anordnung anheben und auf die Unterdeckplatte 6 aufsetzen zu können.4 illustrates that a bottom cover plate 6 is provided at an assembly position. The arrangement formed in FIG. 3 is now lifted by means of the vacuum lifting unit 7 and, as shown in FIG. 5, placed on the lower cover plate 6. The gluing of the last frame and the honeycomb insert 5 is sufficient in its adhesive force to be able to lift the entire arrangement and to place it on the lower cover plate 6 after the upper cover plate has been put on and pressed on.

Nachfolgend wird, wie in Fig. 6 dargestellt, die gesamte Anordnung einer Presse zugeführt. Dies kann eine Walzenpresse, beispielsweise mit Kalanderwalzen oder auch eine Mehretagenpresse sein. In dieser wird die Anordnung entsprechend ver- presst, um die fertige Sandwichplatte zu erhalten.Subsequently, as shown in FIG. 6, the entire arrangement is fed to a press. This can be a roller press, for example with calender rollers, or a multi-daylight press. The arrangement is pressed accordingly in order to obtain the finished sandwich panel.

Die Fig. 7 zeigt in perspektivischer Teil-Schnittansicht den Aufbau einer erfindungsgemäßen Sandwichplatte mit einem Leistenrahmen, welcher Längsriegel 2 und nicht dargestellte Querriegel 3 umfasst. In den Leistenrahmen ist eine Wabeneinlage 5 eingelegt, wobei zum Einlegen die oben beschriebene, erfindungsgemäße GreifVorrichtung verwendet wurde. Nachfolgend wird der Leistenrahmen mit einer Oberdeckplatte 1 und einer Unter- deckplatte 2 verleimt. Auf die Oberdeckplatte 1 kann ein oberes Furnier 11 aufgebracht werden, die Oberseite der Unterdeckplatte 6 kann mit einem unteren Furnier 12 versehen werden.7 shows a perspective partial sectional view of the structure of a sandwich panel according to the invention with a strip frame which comprises longitudinal bars 2 and cross bars 3, not shown. A honeycomb insert 5 is inserted into the last frame, the gripping device according to the invention described above being used for the insertion. In the following, the strip frame with an upper cover plate 1 and a lower cover plate 2 glued. An upper veneer 11 can be applied to the upper cover plate 1, the upper side of the lower cover plate 6 can be provided with a lower veneer 12.

Die Längsriegel und die Querriegel können aus Materialien wie MDF, Massivholz oder Spanplatten hergestellt werden. Die Oberdeckplatte 1 sowie die Unterdeckplatte 6 können Dicken von 5 bis 10 mm aufweisen. Auf die Oberflächen (Außenflächen) der Oberdeckplatte 1 bzw. der Unterdeckplatte 6 können ein oberes und unteres Furnier 11 bzw. 12 aufgeleimt werden. Anstelle der Furniere sind auch andere Kaschiermaterialien (Folie, Lack oder Ähnliches) einsetzbar. Die Oberdeckplatte 1 und die Unterdeckplatte 2 können als Hartfaserplatte, Spanplatte oder aus HDF gefertigt sein. Es versteht sich, dass die seitlichen Sichtflächen entsprechend ebenfalls furniert oder mit Kaschiermaterial oder ähnlichem versehen werden können.The longitudinal bars and cross bars can be made from materials such as MDF, solid wood or chipboard. The top cover plate 1 and the bottom cover plate 6 can have thicknesses of 5 to 10 mm. An upper and lower veneer 11 or 12 can be glued to the surfaces (outer surfaces) of the upper cover plate 1 or the lower cover plate 6. Instead of the veneers, other laminating materials (foil, lacquer or the like) can also be used. The top cover plate 1 and the bottom cover plate 2 can be made of hardboard, chipboard or HDF. It goes without saying that the side visible surfaces can also be veneered or covered with laminating material or the like.

Nachfolgend wird die Erfindung anhand einer schematischen Darstellung einer Gesamtanlage in Verbindung mit den Fig. 8a bis 8c beschrieben:The invention is described below on the basis of a schematic representation of an overall system in conjunction with FIGS. 8a to 8c:

Beginnend mit Fig. 8a werden zunächst in der Station 01.1 Längsriegel 2 und Querriegel 3 zugeführt und leiterartig positioniert. Die Längsriegel 2 sind dabei in ein Stapelmagazin aufgenommen, die Querriegel 3 werden auf umlaufende Transportbänder in einem Abstand zueinander aufgelegt. Die Längsriegel 2 weisen einen Abstand zu den Querriegeln 3 auf.Beginning with FIG. 8a, longitudinal bars 2 and cross bars 3 are first fed into the station 01.1 and positioned like a ladder. The longitudinal bars 2 are received in a stack magazine, the cross bars 3 are placed on circumferential conveyor belts at a distance from one another. The longitudinal bars 2 are at a distance from the cross bars 3.

In einer Station 01.2 werden die Längsriegel und Querriegel auf ein Förderband 8 überführt. Oberhalb des Förderbands 8 sind mehrere Anschläge 9 vorgesehen, welche vertikal bewegbar sind und zur stirnseitigen Anlage der Längsriegel 2 sowie zur jeweiligen Positionierung der Querriegel 3 dienen. Die Längsriegel 2 und die Querriegel 3 werden somit entsprechend gestoppt und positioniert. Wenn die Längsriegel 2 und die Quer- riegel 3 ihre Montageposition erreicht haben, wird das Förderband 8 gestoppt. Die Fügestellen werden entsprechend (nicht dargestellt) beleimt. Nachfolgend wird der Leistenrahmen durch seitliches Verpressen gefügt. Der Klebstoff fixiert die Längsriegel und die Querriegel 2, 3 sofort, sodass an der Station 01.3 ein fertiger Leistenrahmen auf ein weiteres Transportband überführt werden kann.In a station 01.2, the longitudinal bars and cross bars are transferred to a conveyor belt 8. Above the conveyor belt 8, a plurality of stops 9 are provided, which can be moved vertically and are used for the frontal engagement of the longitudinal bars 2 and for the respective positioning of the cross bars 3. The longitudinal bolts 2 and the transverse bolts 3 are accordingly stopped and positioned. If the longitudinal bars 2 and the transverse bolt 3 have reached their assembly position, the conveyor belt 8 is stopped. The joints are glued accordingly (not shown). Subsequently, the last frame is joined by lateral pressing. The adhesive immediately fixes the longitudinal bars and cross bars 2, 3 so that a finished last frame can be transferred to another conveyor belt at station 01.3.

Gleichzeitig zu der Herstellung des Leistenrahmens wird von einem Wabenplattenvorrat 02.2 das komprimierte Material der Wabeneinlage in einen Wabenexpandiertrockner 02.1 eingezogen. Dabei werden die zuvor gefalteten Waben aufgestellt und durch die warme Luft getrocknet, sodass diese fixiert werden. Aus dem so entstehenden endlosen Wabenteppich schneidet eine Schneideeinrichtung am Ende des Wabenexpandiertrockners 02.1 entsprechende Fixmaße der Wabeneinlagen 5 ab. Diese entsprechen in ihrer Größe den Fächern des Leistenrahmens.Simultaneously with the manufacture of the last frame, the compressed material of the honeycomb insert is drawn into a honeycomb expander dryer 02.1 from a honeycomb plate supply 02.2. The previously folded honeycombs are set up and dried by the warm air so that they are fixed. A cutting device at the end of the honeycomb expander dryer 02.1 cuts corresponding fixed dimensions of the honeycomb inlays 5 from the endless honeycomb carpet thus created. The size of these corresponds to the compartments of the last frame.

Die vereinzelten und geschnittenen Wabeneinlagen 5 werden nachfolgen einer Station 03.3 zugeführt. Dort werden Sie von Greifern 10, die mit nach unten gerichteten Greiferfingern versehen sind, welche in die Waben der Wabeneinlagen 5 eingreifen, angehoben. Die Greiferfinger werden nach dem Einsetzen in die Wabeneinlage einander angenähert, sodass sie die Wabeneinlage zusammendrücken und auf diese Weise verhalten. Durch ein Überführen der an den Greifern 10 hängenden Wabeneinlagen 5 in den Leistenrahmen werden diese in der Station 03.1 in den Leistenrahmen eingesetzt. Das Einsetzen erfolgt auf einem ebenen Transportband, sodass die Planheit gewährleistet ist.The separated and cut honeycomb inserts 5 are fed to a station 03.3. There you will be raised by grippers 10, which are provided with gripper fingers pointing downwards, which engage in the honeycomb of the honeycomb inserts 5. After being inserted into the honeycomb insert, the gripper fingers are brought closer together so that they compress the honeycomb insert and thus behave. By transferring the honeycomb inserts 5 hanging on the grippers 10 into the last frame, these are inserted into the last frame in station 03.1. It is inserted on a flat conveyor belt so that flatness is guaranteed.

Nachfolgend wird der Leistenrahmen mit den eingesetzten Wabeneinlagen auf eine Schrägrollenbahn 04.0 überführt. Hierbei erfolgt eine exakte Positionierung des Leistenrahmens. Der Leistenrahmen wird nachfolgend in der Station 05.0 an seiner Oberseite und an seiner Unterseite mit Kleber versehen. Dies erfolgt durch obere und untere Walzen, mittels derer der Kleber aufgebracht wird.Subsequently, the last frame with the honeycomb inserts used is transferred to a 04.0 inclined roller conveyor. Here, the last frame is positioned exactly. The strip frame is subsequently provided with adhesive in station 05.0 on the top and on the bottom. This is done by means of upper and lower rollers, by means of which the adhesive is applied.

Der beleimte Leistenrahmen wird nachfolgend auf einer Konusrollenbahn transportiert, um mittels konisch gestalteter Transportrollen nur eine geringe Kontaktfläche zu haben, damit der Leimauftrag an der Unterseite des Leistenrahmens nicht beeinträchtigt wird.The glued strip frame is subsequently transported on a cone roller conveyor in order to have only a small contact area by means of conically shaped transport rollers so that the glue application on the underside of the strip frame is not impaired.

In einer Station 06.1 wird, beispielsweise mittels des dargestellten Gabelstaplers, ein Stapel von Oberdeckplatten bzw. Unterdeckplatten bereitgestellt. Der Stapel wird in eine Station 06.2 überführt. Mittels einer Vakuum-Hebeeinheit wird in der Station 06.3 jeweils eine Oberdeckplatte bzw. Unterdeckplatte abgehoben und in eine Station 06.4 überführt. Von dieser aus wird mittels einer Vakuum-Hebeeinheit 06.8, welche an einem Portal gelagert ist, eine Oberdeckplatte auf die Station 06.5 aufgelegt, während eine Unterdeckplatte in die Station 06.7 überführt wird. Von der Station 06.5 greift nunmehr die Vakuum-Hebeeinheit die Oberdeckplatte und legt diese auf den beleimten Leistenrahmen auf. Nach kurzem Andrücken hebt die Vakuum-Hebeeinheit die Oberdeckplatte zusammen mit dem Leistenrahmen an und legt diese in der Station 06.7 auf die Unterdeckplatte ab. Somit ist die Sandwichplatte fertig montiert. In der Station 07.0 und 07.8 wird die Sandwichplatte weitertransportiert und Kalanderrollenpressen 09.1 und 09.2 zugeführt. Hierbei erfolgt ein fester Verbund zu der fertigen Sandwichplatte. Diese verlässt die Kalanderrollenpressen 09.1 und 09.2 und wird auf eine Transportstation 10.0 überführt. Von dieser aus erfolgt ein Abstapeln in den Stationen 11.2 und 11.3, wobei dies mittels Vakuum-Hebeeinheiten der Station 11.1 erfolgt . Es versteht sich, dass vor oder nach dem Stapeln in den Stationen 11.1 bis 11.3 ein Beschneiden der Kanten oder ein Unterteilen der Sandwichplatten in kleinere Einzel-Sandwichplatten erfolgen kann.In a station 06.1, a stack of upper cover plates or lower cover plates is provided, for example by means of the forklift shown. The stack is transferred to a station 06.2. Using a vacuum lifting unit, an upper cover plate or lower cover plate is lifted off in station 06.3 and transferred to station 06.4. From this, an upper cover plate is placed on station 06.5 by means of a vacuum lifting unit 06.8, which is mounted on a portal, while a lower cover plate is transferred to station 06.7. The vacuum lifting unit now grips the top cover plate from station 06.5 and places it on the glued strip frame. After a short press, the vacuum lifting unit lifts the top cover plate together with the last frame and places it on the bottom cover plate in station 06.7. The sandwich panel is now fully assembled. In the stations 07.0 and 07.8 the sandwich plate is transported on and calender presses 09.1 and 09.2 are fed. This creates a firm bond to the finished sandwich panel. This leaves the calender presses 09.1 and 09.2 and is transferred to a transport station 10.0. From this, stacking takes place in stations 11.2 and 11.3, this being done by means of vacuum lifting units in station 11.1. It goes without saying that before or after the stacking in stations 11.1 to 11.3, the edges can be trimmed or the sandwich panels divided into smaller individual sandwich panels.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1 Oberdeckplatte1 top cover plate

2 Längsriegel2 longitudinal bars

3 Querriegel3 crossbars

4 Verstärkungseinlage4 reinforcement insert

5 Wabeneinlage5 honeycomb insert

6 Unterdeckplatte Vakuum-Hebeeinheit Förderband6 Lower deck plate vacuum lifting unit conveyor belt

9 Anschlag 0 Greifer 9 Stop 0 gripper

Claims

Ansprüche Expectations 1. Sandwichplattenherstellungsvorrichtung mit folgenden Baugruppen: einer Fügevorrichtung für einen Leistenrahmen aus Längsriegeln (2) und Querriegeln (3), einer Greifvorrichtung zum Greifen, Transportieren und Einlegen zumindest einer Wabeneinlage (5) in zumindest ein Fach des Leistenrahmens, einer Beleimvorrichtung zum Beleimen der Oberseite und der Unterseite des Leistenrahmens und der Wabeneinlage (5), einer Hebe- und Transportvorrichtung zum Heben und Transportieren einer Oberdeckplatte (1) von einer Magazinposition zu dem Leistenrahmen und der Wabeneinlage (5) und zum Auflegen und Aufdrücken auf den Leistenrahmen und die Wabeneinlage (5) , einer Hebe- und Transportvorrichtung zum Heben und Transportieren der Anordnung aus Leistenrahmen, Wabeneinlage (5) und Oberdeckplatte (1) zu einer Magazinposition mit einer Unterdeckplatte (6), und einer Presse zum Fertigpressen der Sandwichplatte.1. Sandwich panel manufacturing device with the following assemblies: a joining device for a strip frame made of longitudinal bars (2) and cross bars (3), a gripping device for gripping, transporting and inserting at least one honeycomb insert (5) into at least one compartment of the strip frame, a gluing device for gluing the top and the underside of the last frame and the honeycomb insert (5), a lifting and transport device for lifting and transporting an upper cover plate (1) from a magazine position to the last frame and the honeycomb insert (5) and for placing and pressing on the last frame and the honeycomb insert ( 5), a lifting and transport device for lifting and transporting the arrangement consisting of a strip frame, honeycomb insert (5) and top cover plate (1) to a magazine position with a bottom cover plate (6), and a press for pressing the sandwich plate. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Hebe- und Transportvorrichtung zumindest eine Vakuum- Hebeeinheit (7) umfasst.2. Device according to claim 1, characterized in that the lifting and transport device comprises at least one vacuum lifting unit (7). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mittels der Beleimvorrichtung ein PUR-Kleber aufgebracht wird. 3. Device according to claim 1 or 2, characterized in that a PUR adhesive is applied by means of the gluing device. 4. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mittels der Beleimvorrichtung ein PU-Kleber aufgebracht wird.4. The device according to claim 1 or 2, characterized in that a PU adhesive is applied by means of the gluing device. 5. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mittels der Beleimvorrichtung ein Heißschmelzkleber aufgebracht wird.5. The device according to claim 1 or 2, characterized in that a hot-melt adhesive is applied by means of the gluing device. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass mittels der Beleimvorrichtung die der Wabeneinlage (5) zugewandten Flächen der Längsriegel (2) und/oder Querriegel (3) mit Kleber versehbar sind.6. Device according to one of claims 1 to 5, characterized in that by means of the gluing device the honeycomb insert (5) facing surfaces of the longitudinal bars (2) and / or cross bars (3) can be provided with adhesive. 7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Greifvorrichtung mit Greiffingern versehen ist, welche jeweils in Waben der Wabeneinlage (5) einsteckbar und in ihrem Abstand veränderbar sind.7. Device according to one of claims 1 to 6, characterized in that the gripping device is provided with gripping fingers, each of which can be inserted into the honeycomb of the honeycomb insert (5) and whose distance can be changed. 8. Sandwichplattenherstellungsverfahren mit folgenden Arbeitsschritten :8. Sandwich panel manufacturing process with the following steps: Herstellen eines Leistenrahmens durch Fügen von Längsriegeln (2) und Querriegeln (3),Manufacture of a last frame by joining longitudinal bars (2) and cross bars (3), Einfügen von zumindest einer Wabeneinlage (5) in zumindest ein von den Längsriegeln (2) und den Querriegeln (3) gebildetes Fach,Inserting at least one honeycomb insert (5) into at least one compartment formed by the longitudinal bars (2) and the transverse bars (3), Beleimen der Oberseiten und der Unterseiten des Leistenrahmens und der Wabeneinlage (5) ,Gluing the top and bottom of the last frame and the honeycomb insert (5), Auflegen und Andrücken einer Oberdeckplatte (1),Place and press on an upper cover plate (1), Anheben der Oberdeckplatte (1) unter Mitnahme des Leistenrahmens mit Wabeneinlage (5) ,Lifting the top cover plate (1) while taking the frame with honeycomb insert (5), Auflegen der Anordnung auf eine Unterdeckplatte (6) zur Bildung einer Sandwichplatte, undPlacing the arrangement on a lower cover plate (6) to form a sandwich plate, and Pressen der Sandwichplatte. Pressing the sandwich panel. 9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Oberdeckplatte (1) von einer Magazinposition zu dem Leistenrahmen mittels einer Vakuum-Hebeeinheit (7) transportiert wird.9. The device according to claim 8, characterized in that the top cover plate (1) is transported from a magazine position to the last frame by means of a vacuum lifting unit (7). 10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Oberdeckplatte (1) zusammen mit dem Leistenrahmen mittels der Vakuum-Hebeeinheit (7) zu einer Fügeposition transportiert wird, zu welcher zuvor die Unterdeckplatte (6) transportiert wurde.10. The device according to claim 9, characterized in that the upper cover plate (1) is transported together with the strip frame by means of the vacuum lifting unit (7) to a joining position to which the lower cover plate (6) was previously transported. 11. Verfahren nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass die Sandwichplatte mittels einer Vakuum-Hebeeinheit (7) zu der Presse transportiert wird.11. The method according to any one of claims 8 to 10, characterized in that the sandwich plate is transported to the press by means of a vacuum lifting unit (7). 12. Verfahren nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass zum Beleimen ein PUR-Kleber verwendet wird.12. The method according to any one of claims 8 to 11, characterized in that a PUR adhesive is used for gluing. 13. Verfahren nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass zum Beleimen ein PU-Kleber verwendet wird.13. The method according to any one of claims 8 to 11, characterized in that a PU adhesive is used for gluing. 14. Verfahren nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass zum Beleimen ein Heißschmelzkleber verwendet wird.14. The method according to any one of claims 8 to 11, characterized in that a hot melt adhesive is used for gluing. 15. Verfahren nach einem der Ansprüche 8 bis 14, dadurch gekennzeichnet, dass mittels der Beleimvorrichtung die der Wabeneinlage (5) zugewandten Flächen der Längsriegel (2) und/oder der Querriegel (3) mit Kleber versehen werden.15. The method according to any one of claims 8 to 14, characterized in that the gluing device facing the honeycomb insert (5) facing the longitudinal bars (2) and / or the transverse bars (3) are provided with adhesive. 16. Verfahren nach einem der Ansprüche 8 bis 15, dadurch gekennzeichnet, dass alle benötigten Wabeneinlagen (5) gleichzeitig eingelegt werden.16. The method according to any one of claims 8 to 15, characterized in that all the honeycomb inserts (5) required are inserted simultaneously. 17. Verfahren nach einem der Ansprüche 8 bis 16, dadurch gekennzeichnet, dass das Verfahren automatisch durchgeführt wird. 17. The method according to any one of claims 8 to 16, characterized in that the method is carried out automatically.
PCT/EP2005/001474 2004-02-13 2005-02-14 Device and method for producing sandwich panels Ceased WO2005077654A1 (en)

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WO2011137562A1 (en) * 2010-05-06 2011-11-10 嘉峰国际企业有限公司 Improved combined structure of decorative sheet and honeycomb plate
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ITUD20120165A1 (en) * 2012-09-28 2014-03-29 Friul Intagli Ind S P A METHOD AND APPARATUS FOR THE PRODUCTION OF DRUM PANELS
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EP3163000A1 (en) * 2015-10-27 2017-05-03 Erkado Zbigniew Kozlowski Door leaf panel with door frame elements mating with said panel and a method for manufacturing a door panel with door frame elements
US11059259B2 (en) 2016-11-21 2021-07-13 Wabash National, L.P. Composite core with reinforced plastic strips and method thereof
US11872792B2 (en) 2017-01-30 2024-01-16 Wabash National, L.P. Composite core with reinforced areas and method
US11318702B2 (en) 2017-02-14 2022-05-03 Wabash National, L.P. Hybrid composite panel and method
US11008051B2 (en) 2018-02-06 2021-05-18 Wabash National, L.P. Interlocking composite core and method
US11772715B2 (en) 2019-03-27 2023-10-03 Wabash National, L.P. Composite panel with connecting strip and method
RU201937U1 (en) * 2020-09-01 2021-01-21 Акционерное общество «Информационные спутниковые системы» имени академика М.Ф. Решетнёва» CELLULAR PANEL SUPPORT UNIT
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