EP3409435A1 - Press device for the production of wood strands from wood - Google Patents

Press device for the production of wood strands from wood Download PDF

Info

Publication number
EP3409435A1
EP3409435A1 EP18000467.3A EP18000467A EP3409435A1 EP 3409435 A1 EP3409435 A1 EP 3409435A1 EP 18000467 A EP18000467 A EP 18000467A EP 3409435 A1 EP3409435 A1 EP 3409435A1
Authority
EP
European Patent Office
Prior art keywords
woods
pressing
wood
pressing device
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18000467.3A
Other languages
German (de)
French (fr)
Other versions
EP3409435B1 (en
Inventor
Dirk Pahland
Jörg OBENAUER
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.)
Weinig Grecon GmbH and Co KG
Original Assignee
Weinig Grecon 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 Weinig Grecon GmbH and Co KG filed Critical Weinig Grecon GmbH and Co KG
Priority to SI201830135T priority Critical patent/SI3409435T1/en
Publication of EP3409435A1 publication Critical patent/EP3409435A1/en
Application granted granted Critical
Publication of EP3409435B1 publication Critical patent/EP3409435B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B27M3/002—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected at their ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses

Definitions

  • the invention relates to a pressing device for the production of wood strands from wood according to the preamble of claim 1.
  • extruders are used, which are characterized by the fact that the timbers are put together in timed strands. During the pressing process, the wood strand rests, so that the required high pressing force can be generated with a feed slide.
  • the achievable throughput speed of the wood strand low and is for example only about 70 m / min.
  • the user of the press equipment must therefore use different presses when using wood with a small and large cross-section, which is not only costly, but also requires additional required hall space or additional staff.
  • the invention is therefore based on the object, the generic pressing device in such a way that it can be combined with her wood with small and large cross-section to wood strands, the required strength of the connection between the woods is guaranteed in the wood strand.
  • the pressing device according to the invention are in the transport direction of the woods in front of and behind the press unit clamping units.
  • the press unit With the press unit, the wood, if only small pressing forces are required, can be assembled in a continuous process to wood strand.
  • the required pressing force can be generated during the advance of the woods or the wood strand through the press unit. If higher pressing forces are required, the clamping units are used. With them, the wood strand can be firmly clamped in the pressing device, so that subsequently in the longitudinal direction of the wood strand, the required high pressing force can be applied with a corresponding force-generating part.
  • At least one of the clamping units is advantageously movable in the longitudinal direction of the wood strand.
  • the press unit upstream clamping unit is movable in the transport direction of the woods. Before the woods are pressed together tightly within the wood strand, they still have little play in the area of the interlocking finger joints. This game is overcome by the application of the pressing force in that the woods are still slightly movable in the transport direction against each other. The first clamping unit can join this small adjustment of the woods without the high clamping force is impaired.
  • the second, the pressing unit downstream clamping unit is preferably arranged stationary. It therefore absorbs the high pressing force acting in the longitudinal direction of the wood strand and can pass it on to the machine frame or the like of the pressing device.
  • Both clamping units are each provided with at least one clamping element which is pressed with the required clamping pressure on the woods during the clamping operation.
  • the clamping elements can be acted upon with the respective required clamping force, so that the woods are always kept safe depending on the applied pressing force.
  • the pressing unit which is located between the two clamping units, advantageously has at least two superposed endless conveyor, between which the woods can be transported.
  • the endless conveyors when the clamping units are active, serve as a feed element for the timbers. If the clamping units are not in use, then the endless conveyor act as a feed and pressing element, with which in the wood strand juxtaposed woods are compressed in a continuous process under the necessary pressing pressure.
  • the pressing device advantageously has two in the transport direction of the woods one behind the other press units. With them, the wood strand can be produced optimally in a continuous process.
  • the two press units ensure that the wood is connected with sufficient strength within the wood strand.
  • short woods 1 can be assembled one behind the other to form wood strands 2.
  • the woods 1 are provided on their front sides with a finger jointing profile, with the intermeshing in Holzstrangraum wood 1 one behind the other.
  • the woods 1 are provided with glue at their finger joint profiles and then compressed in the longitudinal direction of the wood strand 2 with a sufficiently high pressing force, so that the timber 1 lying one behind the other in the wood strand 2 are firmly connected to each other.
  • pressing device it is possible to use them either as a continuous press or as an extruder.
  • the wood strand 2 is continuously produced in a continuous process.
  • the wood strand is then separated in the transport direction behind the pressing device to the required extent in wooden strand parts by means of at least one saw.
  • the wood strand 2 can be conveyed in a continuous process with maximum speeds of, for example, up to 160 m / min through the press device.
  • the pressing force with which the consecutive woods 1 are compressed in the longitudinal direction of the wood strand 2 is for example in a range of about 6 to about 12 to.
  • woods 1 are processed which have relatively small cross-sections, for example in the range of about 20 to 150 cm 2 .
  • the pressing device is used as an extruder with which such high pressing forces can be generated, for example pressing forces of more than 20 tons. Due to this high pressing force of the wood strand is not transported during the application of the pressing force. This results in a throughput of, for example, about only 30 to 40 m / min.
  • wood 1 with large cross-sections account for only a relatively small proportion of the total production volume, the lower throughput speed through the pressing device does not play a significant role.
  • the pressing device has the advantage that the user for the pressing of wood 1 with large cross-section no additional extrusion plant needed, which would require additional hall space, additional material, additional investment costs and the like.
  • the woods 1 are transported along a transport path 3 in their longitudinal direction through the pressing device.
  • the woods 1 are already provided with the finger jointing profile when entering the pressing device at their end faces, which has been milled in a known manner in a preceding milling unit.
  • the woods 1 are guided laterally in their passage through the pressing device, so that the wood strand 2 can be properly assembled from the woods 1.
  • the clamping unit 5 has at least one pressing cylinder 7, with which a clamping element 8 can be pressed onto the wood 1.
  • the clamping unit 5 has side cheeks 9, between which the clamping element 8 is located.
  • the side cheeks 9 are from rails 10, which are part of a press table 11 which is arranged in the transport direction 6 movable on a machine frame 19.
  • a first pressing unit 12 which is formed in a known manner. It has two rotatably driven endless conveyors 13, 14, which are located above and below the transport path for the woods 1.
  • the endless conveyors 13, 14 are endless chains in the illustrated embodiment, which are provided with plates 15 whose length corresponds at least to the width of the woods 1 and which are arranged distributed uniformly over the circumference of the endless chains 13, 14.
  • the endless conveyor can also be formed by feed rollers or other feed elements. Therefore, when referring to endless chains below, this is not to be understood as a restriction to chains.
  • the upper endless chain 13 can be pressed by means of pressure cylinders 16 down on the woods 1.
  • the impression cylinders 16 are held in gantries 17, 18, which are fastened on both sides of the transport path for the woods 1 on the machine frame 19, which extends over the length of the pressing device.
  • the two endless chains 13, 14 are driven by means of a drive unit 20, which is located in the area next to the machine frame 19.
  • the drive unit 20 has drive shafts 21, with which sprockets 22, 23 of the endless chains 13, 14 are rotatably driven.
  • the pressing unit 12 is followed in the transport direction 6 by far a second pressing unit 24, which is advantageously the same design as the pressing unit 12. Therefore, the second pressing unit 24 is not described in detail.
  • It has the two endless chains 25, 26, which are each provided with the plates 27.
  • the endless chains 25, 26 are rotatably driven by means of the sprockets 28, 29, which are drivingly connected to the drive shafts 21 of the drive unit 20.
  • the upper endless chain 25 can be adjusted by means of the pressure cylinder 30 in height.
  • press unit 24 can be used as endless conveyors 25, 26 not only endless chains, but for example, feed rollers or other feed elements.
  • the two press units 12, 24 form part of the continuous press, with which in the manner to be described, the pressing forces can be generated, especially when wood 1 are to be joined together with a smaller cross-section to the wood strand 2.
  • a pressure unit 31 In the area between the two press units 12, 24 is a pressure unit 31. It has at least one pressing element 32 which extends in the transport direction 6 and is pressed by means of two pressure units 33 on the woods 1 and the wood strand 2. The two printing units 33 are in the transport direction 6 at a distance one behind the other.
  • the pressing device can also be designed so that the in Fig. 1 recognizable Thisandschreibiana 34 load the wood strand 2 against a side stop on which the wood strand 2 rests with its left in the transport direction 6 longitudinal side.
  • the clamping unit 35 In the transport direction behind the second pressing unit 24 is another clamping unit 35, which is located at the outlet end 36 of the pressing device.
  • the clamping unit 35 is the same as the clamping unit 5, but stationary in relation to the machine frame 19 is positioned.
  • the clamping unit 35 has a pressing cylinder 37 with which a clamping element 38 can be pressed onto the wood strand 2.
  • the two clamping units 5, 35 are part of the extruder, can be pressed with the wood with a large cross section to the wood strand 2.
  • the pressing pressure required in the transport longitudinal direction is achieved in that the upper and lower endless chains 13, 14 and 25, 26 are driven at different speeds.
  • the size of the speed difference determines the Height of the force acting in the longitudinal direction of the wood strand 2 pressing force.
  • the pressing device is switched so that it works as an extruder.
  • the endless chains 13, 14; 25, 26 as feed elements.
  • the wood strand 2 formed from the woods 1 is transported until it comes into the region of the clamping unit 35. Then the feed of the wood strand 2 is stopped.
  • the clamping element 38 is pressed with sufficient force on the wood strand 2.
  • the clamping element 8 of the clamping unit 5 is pressed with great force on the woods 1 in the entry area.
  • the clamping unit 5 is mounted in the manner described in the transport direction 6 movably on the machine frame 19, so that they can join the required longitudinal movement during the pressing of the woods 1 within the timber strand 2 ,
  • the pressing device it is possible in the manner described, depending on the cross section of the wood to be compressed 1 to press the wood strand 2 in a continuous process continuously or clocked by the extrusion process. It is provided only a single pressing device that takes up little space and therefore can be installed in smaller halls. The woods 1, regardless of whether they are clocked or continuously pressed to the wood strand 2, transported in one direction by the pressing device. This allows a simple and machine-side requiring only little effort design of the pressing device,
  • the wood strand 2 is divided behind the outlet end 36 in a known manner into individual strand parts.
  • the clamping unit 5 stationary at the inlet end 4 and the clamping unit 35 may be provided movably at the outlet end 36. In this case, the wood strand 2 is compressed by moving the clamping unit 35 counter to the feed direction.
  • both clamping units 5, 35 are displaceable. To compress the woods 1 in the wood strand 2, the two clamping units 5, 35 are shifted opposite to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

Die Presseinrichtung hat wenigstens eine Presseinheit (12, 24), durch welche die Hölzer (1) transportiert werden. Sie liegen mit ihren Stirnseiten aneinander und werden durch die Presseinheiten (12, 24) gegeneinander gepresst. Der Presseinheit (12, 24) ist wenigstens eine erste Spanneinheit (5) vorgeschaltet und wenigstens eine zweite Spanneinheit (35) nachgeschaltet. Mit der Presseinrichtung ist es möglich, die Hölzer (1) im Durchlaufverfahren mit geringer Presskraft zum Holzstrang zu verbinden. Bei hohen Presskräften werden die Hölzer (1) getaktet zum Holzstrang zusammengefügt, wobei die Spanneinheiten (5) die erforderliche hohe Presskraft aufnehmen.

Figure imgaf001
The pressing device has at least one pressing unit (12, 24) through which the woods (1) are transported. They lie with their front sides together and are pressed by the press units (12, 24) against each other. The pressing unit (12, 24) is preceded by at least one first clamping unit (5) and at least one second clamping unit (35) connected downstream. With the pressing device, it is possible to connect the woods (1) in a continuous process with low pressing force to the wood strand. At high press forces, the timbers (1) are clocked together to form a wooden strand, the clamping units (5) take the required high pressing force.
Figure imgaf001

Description

Die Erfindung betrifft eine Presseinrichtung zur Herstellung von Holzsträngen aus Hölzern nach dem Oberbegriff des Anspruches 1.The invention relates to a pressing device for the production of wood strands from wood according to the preamble of claim 1.

Es ist bekannt, Hölzer an ihren Stirnseiten mit einem Keilzinkenprofil zu versehen, diese Stirnseiten zu verleimen und mit diesen keilverzinkten Stirnseiten aneinander liegend zu einem Holzstrang zusammenzuführen. Um eine feste Verbindung innerhalb des Holzstranges zwischen den Hölzern zu erreichen, wird eine in Längsrichtung des Holzstranges wirkende Presskraft aufgebracht.It is known to provide wood on their front sides with a finger-jointed profile to glue these end faces and merge together with these finger-galvanized end faces to form a wooden strand. In order to achieve a firm connection within the wood strand between the woods, a force acting in the longitudinal direction of the wood strand pressing force is applied.

Je nach Querschnitt der eingesetzten Hölzer müssen unterschiedlich hohe Presskräfte eingesetzt werden. Haben die Hölzer nur eine verhältnismäßig geringe Querschnittsfläche, werden die Hölzer auf Durchlaufpressen verpresst. Die hierfür erforderlichen Presskräfte liegen beispielhaft im Bereich von 5 bis 12 to. Bei Presskräften in dieser Größenordnung kann der Holzstrang im Durchlaufverfahren erzeugt werden. Die zur Erzielung der Presskraft eingesetzten Pressenteile lassen es zu, diese Presskraft während des Vorschubes der Hölzer bzw. des Holzstranges aufzubringen. Daher können mit solchen Durchlaufpressen hohe Durchlaufgeschwindigkeiten erreicht werden, die beispielsweise bis zu 160 m/min betragen können.Depending on the cross-section of the wood used, different levels of pressing force must be used. If the wood has only a relatively small cross-sectional area, the woods are pressed on continuous presses. The required pressing forces are for example in the range of 5 to 12 to. For pressing forces of this magnitude, the wood strand can be produced in a continuous process. The press parts used to achieve the pressing force make it possible to apply this pressing force during the advancement of the wood or the wood strand. Therefore, high throughput speeds can be achieved with such continuous presses, which can be, for example, up to 160 m / min.

Werden hingegen im Querschnitt größere Hölzer eingesetzt, dann müssen entsprechend höhere Presskräfte aufgebracht werden. Sie lassen sich dann nicht mehr mit Presseinheiten aufbringen, bei denen die Hölzer während des Pressvorganges transportiert werden. Für diese Fälle werden Strangpressen eingesetzt, die sich dadurch auszeichnen, dass die Hölzer getaktet zu Holzsträngen zusammengesetzt werden. Während des Pressvorganges ruht der Holzstrang, so dass die erforderliche hohe Presskraft mit einem Vorschubschlitten erzeugt werden kann. Allerdings ist bei solchen Strangpressen die erreichbare Durchlaufgeschwindigkeit des Holzstranges gering und beträgt beispielsweise nur etwa 70 m/min.If, however, larger woods are used in cross-section, then correspondingly higher pressing forces must be applied. They can then no longer apply with press units in which the woods are transported during the pressing process. For these cases, extruders are used, which are characterized by the fact that the timbers are put together in timed strands. During the pressing process, the wood strand rests, so that the required high pressing force can be generated with a feed slide. However, with such extruders The achievable throughput speed of the wood strand low and is for example only about 70 m / min.

Der Anwender der Presseinrichtungen muss daher bei Verwendung von Hölzern mit kleinem und großem Querschnitt unterschiedliche Pressen einsetzen, was jedoch nicht nur kostenaufwändig ist, sondern auch zusätzlich benötigte Hallenflächen oder zusätzliches Personal erforderlich macht.The user of the press equipment must therefore use different presses when using wood with a small and large cross-section, which is not only costly, but also requires additional required hall space or additional staff.

Der Erfindung liegt daher die Aufgabe zugrunde, die gattungsgemäße Presseinrichtung so auszubilden, dass mit ihr Hölzer mit kleinem und großem Querschnitt zu Holzsträngen zusammengefügt werden kann, wobei die erforderliche Festigkeit der Verbindung zwischen den Hölzern im Holzstrang gewährleistet ist.The invention is therefore based on the object, the generic pressing device in such a way that it can be combined with her wood with small and large cross-section to wood strands, the required strength of the connection between the woods is guaranteed in the wood strand.

Diese Aufgabe wird bei der gattungsgemäßen Presseinrichtung erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention in the generic pressing device with the characterizing features of claim 1.

Bei der erfindungsgemäßen Presseinrichtung befinden sich in Transportrichtung der Hölzer vor und hinter der Presseinheit Spanneinheiten. Mit der Presseinheit können die Hölzer, wenn nur geringe Presskräfte erforderlich sind, im Durchlaufverfahren zum Holzstrang zusammengefügt werden. Die erforderliche Presskraft kann hierbei während des Vorschubes der Hölzer bzw. des Holzstranges durch die Presseinheit erzeugt werden. Sind höhere Presskräfte erforderlich, werden die Spanneinheiten eingesetzt. Mit ihnen kann der Holzstrang in der Presseinrichtung fest eingespannt werden, so dass anschließend in Längsrichtung des Holzstranges die erforderliche hohe Presskraft mit einem entsprechenden krafterzeugenden Teil aufgebracht werden kann.In the pressing device according to the invention are in the transport direction of the woods in front of and behind the press unit clamping units. With the press unit, the wood, if only small pressing forces are required, can be assembled in a continuous process to wood strand. The required pressing force can be generated during the advance of the woods or the wood strand through the press unit. If higher pressing forces are required, the clamping units are used. With them, the wood strand can be firmly clamped in the pressing device, so that subsequently in the longitudinal direction of the wood strand, the required high pressing force can be applied with a corresponding force-generating part.

Es ist somit möglich, mit einer einzigen Presseinrichtung die Hölzer sowohl im Durchlaufverfahren mit entsprechend geringer Presskraft zu einem Holzstrang zu verbinden als auch bei hohen Presskräften die Hölzer getaktet zum Holzstrang zusammenzufügen. Die Spanneinheiten können hierbei die erforderliche hohe Presskraft sicher aufnehmen.It is thus possible to connect the woods both in a continuous process with a correspondingly low pressing force to a wood strand with a single pressing device as well as clocked at high press forces the woods to assemble the wood strand. The clamping units can safely absorb the required high pressing force.

Damit die Hölzer im Holzstrang zuverlässig zusammengepresst werden, ist vorteilhaft mindestens eine der Spanneinheiten in Längsrichtung des Holzstranges bewegbar.So that the woods are reliably compressed in the wood strand, at least one of the clamping units is advantageously movable in the longitudinal direction of the wood strand.

Hierbei ist es vorteilhaft, wenn die erste, der Presseinheit vorgeschaltete Spanneinheit in Transportrichtung der Hölzer bewegbar ist. Bevor die Hölzer innerhalb des Holzstranges fest zusammen gepresst werden, haben sie im Bereich der ineinandergreifenden Keilzinken noch ein geringes Spiel. Dieses Spiel wird beim Aufbringen der Presskraft dadurch überwunden, dass die Hölzer in Transportrichtung noch geringfügig gegeneinander bewegbar sind. Die erste Spanneinheit kann diesen geringen Verstellweg der Hölzer mitmachen, ohne dass die hohe Einspannkraft beeinträchtigt wird.It is advantageous if the first, the press unit upstream clamping unit is movable in the transport direction of the woods. Before the woods are pressed together tightly within the wood strand, they still have little play in the area of the interlocking finger joints. This game is overcome by the application of the pressing force in that the woods are still slightly movable in the transport direction against each other. The first clamping unit can join this small adjustment of the woods without the high clamping force is impaired.

Die zweite, der Presseinheit nachgeschaltete Spanneinheit hingegen ist vorzugsweise stationär angeordnet. Sie nimmt daher die in Längsrichtung des Holzstranges wirkende hohe Presskraft auf und kann sie in das Maschinengestell oder dgl. der Presseinrichtung weiterleiten.The second, the pressing unit downstream clamping unit, however, is preferably arranged stationary. It therefore absorbs the high pressing force acting in the longitudinal direction of the wood strand and can pass it on to the machine frame or the like of the pressing device.

Beide Spanneinheiten sind jeweils mit wenigstens einem Spannelement versehen, das mit dem erforderlichen Spanndruck auf die Hölzer beim Spannvorgang gepresst wird. Die Spannelemente können mit der jeweils erforderlichen Spannkraft beaufschlagt werden, so dass die Hölzer in Abhängigkeit von der aufzubringenden Presskraft stets sicher gehalten werden.Both clamping units are each provided with at least one clamping element which is pressed with the required clamping pressure on the woods during the clamping operation. The clamping elements can be acted upon with the respective required clamping force, so that the woods are always kept safe depending on the applied pressing force.

Die Presseinheit, die sich zwischen den beiden Spanneinheiten befindet, weist vorteilhaft wenigstens zwei übereinander angeordnete Endlosförderer auf, zwischen denen die Hölzer transportiert werden können. Die Endlosförderer können, wenn die Spanneinheiten aktiv sind, als Vorschubelement für die Hölzer dienen. Sind die Spanneinheiten nicht im Einsatz, dann wirken die Endlosförderer als Vorschub- und Presselement, mit denen die im Holzstrang aneinander liegenden Hölzer im Durchlaufverfahren unter dem notwendigen Pressdruck zusammengedrückt werden.The pressing unit, which is located between the two clamping units, advantageously has at least two superposed endless conveyor, between which the woods can be transported. The endless conveyors, when the clamping units are active, serve as a feed element for the timbers. If the clamping units are not in use, then the endless conveyor act as a feed and pressing element, with which in the wood strand juxtaposed woods are compressed in a continuous process under the necessary pressing pressure.

Zu diesem Zweck ist es vorteilhaft, wenn der obere Endlosförderer unter dem entsprechenden Druck auf die Hölzer gepresst wird.For this purpose, it is advantageous if the upper endless conveyor is pressed under the appropriate pressure on the woods.

Damit die Endlosförderer bzw. ihre Antriebe dann nicht überlastet werden, wenn die Hölzer mittels der Spanneinheiten eingespannt und die hohen Presskräfte aufgebracht werden, sitzt in der Antriebsverbindung zwischen den Endlosförderern und einem Antriebsaggregat vorteilhaft eine schaltbare Kupplung.So that the endless conveyor or their drives are then not overloaded when the woods are clamped by means of the clamping units and the high pressing forces are applied, sitting in the drive connection between the endless conveyors and a drive unit advantageously a switchable coupling.

Die Presseinrichtung hat vorteilhaft zwei in Transportrichtung der Hölzer hintereinander liegende Presseinheiten. Mit ihnen kann der Holzstrang im Durchlaufverfahren optimal hergestellt werden. Die beiden Presseinheiten sorgen dafür, dass die Hölzer innerhalb des Holzstranges mit der ausreichenden Festigkeit miteinander verbunden werden.The pressing device advantageously has two in the transport direction of the woods one behind the other press units. With them, the wood strand can be produced optimally in a continuous process. The two press units ensure that the wood is connected with sufficient strength within the wood strand.

Der Anmeldungsgegenstand ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch durch alle in den Zeichnungen und der Beschreibung offenbarten Angaben und Merkmale. Sie werden, auch wenn sie nicht Gegenstand der Ansprüche sind, als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.The subject of the application results not only from the subject matter of the individual claims, but also by all the information and features disclosed in the drawings and the description. They are, even if they are not the subject of the claims, claimed as essential to the invention, as far as they are new individually or in combination over the prior art.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und den Zeichnungen.Further features of the invention will become apparent from the other claims, the description and the drawings.

Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen

Fig. 1
in perspektivischer Darstellung eine erfindungsgemäße Presseinrichtung,
Fig. 2
einen Längsschnitt durch die erfindungsgemäße Presseinrichtung gemäß Fig.1,
Fig. 3
in einem Längsschnitt und in Seitenansicht die erfindungsgemäße Presseinrichtung.
The invention will be explained in more detail with reference to an embodiment shown in the drawings. Show it
Fig. 1
in a perspective view of a pressing device according to the invention,
Fig. 2
a longitudinal section through the inventive pressing device according to Fig.1 .
Fig. 3
in a longitudinal section and in side view, the pressing device according to the invention.

Mit der im Folgenden beschriebenen Presseinrichtung können kurze Hölzer 1 hintereinanderliegend zu Holzsträngen 2 zusammengefügt werden. Hierfür sind die Hölzer 1 an ihren Stirnseiten mit einem Keilzinkenprofil versehen, mit dem in Holzstrangrichtung hintereinander liegende Hölzer 1 ineinandergreifen. Die Hölzer 1 werden an ihren Keilzinkenprofilen mit Leim versehen und anschließend in Längsrichtung des Holzstranges 2 mit einer ausreichend hohen Presskraft zusammengedrückt, so dass die hintereinander liegenden Hölzer 1 im Holzstrang 2 fest miteinander verbunden sind.With the pressing device described below short woods 1 can be assembled one behind the other to form wood strands 2. For this purpose, the woods 1 are provided on their front sides with a finger jointing profile, with the intermeshing in Holzstrangrichtung wood 1 one behind the other. The woods 1 are provided with glue at their finger joint profiles and then compressed in the longitudinal direction of the wood strand 2 with a sufficiently high pressing force, so that the timber 1 lying one behind the other in the wood strand 2 are firmly connected to each other.

Mit der in den Fig. 1 bis 3 dargestellten Presseinrichtung ist es möglich, sie wahlweise als Durchlaufpresse oder als Strangpresse einzusetzen. Beim Betrieb als Durchlaufpresse wird der Holzstrang 2 fortlaufend im Durchlaufverfahren hergestellt. Der Holzstrang wird dann in Transportrichtung hinter der Presseinrichtung im erforderlichen Maße in Holzstrangteile mittels wenigstens einer Säge aufgetrennt.With the in the Fig. 1 to 3 As shown pressing device, it is possible to use them either as a continuous press or as an extruder. When operating as a continuous press the wood strand 2 is continuously produced in a continuous process. The wood strand is then separated in the transport direction behind the pressing device to the required extent in wooden strand parts by means of at least one saw.

Der Holzstrang 2 kann im Durchlaufverfahren mit Maximalgeschwindigkeiten von beispielsweise bis zu 160 m/min durch die Presseinrichtung gefördert werden. Die Presskraft, mit der die hintereinander liegenden Hölzer 1 in Längsrichtung des Holzstranges 2 zusammengedrückt werden, liegt beispielhaft in einem Bereich von etwa 6 to bis etwa 12 to.The wood strand 2 can be conveyed in a continuous process with maximum speeds of, for example, up to 160 m / min through the press device. The pressing force with which the consecutive woods 1 are compressed in the longitudinal direction of the wood strand 2, is for example in a range of about 6 to about 12 to.

Im Durchlaufpressverfahren werden Hölzer 1 verarbeitet, die verhältnismäßig kleine Querschnitte haben, beispielsweise im Bereich von etwa 20 bis 150 cm2.In the continuous press process, woods 1 are processed which have relatively small cross-sections, for example in the range of about 20 to 150 cm 2 .

Werden im Querschnitt größere Hölzer 1 (Querschnitt beispielsweise im Bereich von etwa 150 bis 240 cm2) zur Bildung eines Holzstranges 2 eingesetzt, sind wesentlich höhere Presskräfte notwendig, um hintereinanderliegende Hölzer 1 innerhalb des Holzstranges 2 mit ihren Keilzinken mit hoher Festigkeit zusammenzudrücken. Für diesen Fall wird die Presseinrichtung als Strangpresse eingesetzt, mit der solche hohen Presskräfte erzeugt werden können, beispielsweise Presskräfte von mehr als 20 to. Aufgrund dieser hohen Presskraft wird der Holzstrang während des Aufbringens der Presskraft nicht transportiert. Dadurch ergibt sich eine Durchlaufleistung von beispielsweise etwa nur 30 bis 40 m/min. Da in der Praxis allerdings Hölzer 1 mit großen Querschnitten nur einen verhältnismäßig kleinen Anteil des gesamten Produktionsvolumens ausmachen, spielt die geringere Durchlaufgeschwindigkeit durch die Presseinrichtung keine wesentliche Rolle.Be used in cross-section larger woods 1 (cross section, for example in the range of about 150 to 240 cm 2 ) to form a wood strand 2, significantly higher pressing forces are required to compress one behind the other woods 1 within the timber strand 2 with their finger joints with high strength. In this case, the pressing device is used as an extruder with which such high pressing forces can be generated, for example pressing forces of more than 20 tons. Due to this high pressing force of the wood strand is not transported during the application of the pressing force. This results in a throughput of, for example, about only 30 to 40 m / min. However, since in practice, wood 1 with large cross-sections account for only a relatively small proportion of the total production volume, the lower throughput speed through the pressing device does not play a significant role.

Die Presseinrichtung bietet den Vorteil, dass der Anwender für die Verpressung von Hölzern 1 mit großem Querschnitt keine zusätzliche Strangpressanlage benötigt, die zusätzliche Hallenflächen, zusätzliches Material, zusätzliche Investitionskosten und dgl. erforderlich machen würden.The pressing device has the advantage that the user for the pressing of wood 1 with large cross-section no additional extrusion plant needed, which would require additional hall space, additional material, additional investment costs and the like.

Die Hölzer 1 werden längs einer Transportbahn 3 in ihrer Längsrichtung durch die Presseinrichtung transportiert. Vorteilhaft sind die Hölzer 1 beim Eintritt in die Presseinrichtung an ihren Stirnseiten bereits mit dem Keilzinkenprofil versehen, das in einer vorangehenden Fräseinheit in bekannter Weise gefräst worden ist.The woods 1 are transported along a transport path 3 in their longitudinal direction through the pressing device. Advantageously, the woods 1 are already provided with the finger jointing profile when entering the pressing device at their end faces, which has been milled in a known manner in a preceding milling unit.

Die Hölzer 1 werden bei ihrem Durchlauf durch die Presseinrichtung seitlich geführt, so dass der Holzstrang 2 aus den Hölzern 1 einwandfrei zusammengefügt werden kann.The woods 1 are guided laterally in their passage through the pressing device, so that the wood strand 2 can be properly assembled from the woods 1.

Am Eintrittsende 4 in die Presseinrichtung befindet sich eine Spanneinheit 5, die begrenzt in Transportrichtung 6 der Hölzer 1 durch die Presseinrichtung bewegbar ist. Die Spanneinheit 5 hat wenigstens einen Presszylinder 7, mit dem ein Spannelement 8 auf das Holz 1 gedrückt werden kann.At the entry end 4 in the pressing device is a clamping unit 5, which is limited in the transport direction 6 of the woods 1 by the pressing device is movable. The clamping unit 5 has at least one pressing cylinder 7, with which a clamping element 8 can be pressed onto the wood 1.

Die Spanneinheit 5 hat Seitenwangen 9, zwischen denen sich das Spannelement 8 befindet. Die Seitenwangen 9 stehen von Schienen 10 ab, die Teil eines Pressentisches 11 sind, der in Transportrichtung 6 bewegbar auf einem Maschinengestell 19 angeordnet ist.The clamping unit 5 has side cheeks 9, between which the clamping element 8 is located. The side cheeks 9 are from rails 10, which are part of a press table 11 which is arranged in the transport direction 6 movable on a machine frame 19.

In Transportrichtung 6 hinter der Spanneinheit 5 befindet sich eine erste Presseinheit 12, die in bekannter Weise ausgebildet ist. Sie weist zwei drehbar angetriebene Endlosförderer 13, 14 auf, die sich oberhalb und unterhalb der Transportbahn für die Hölzer 1 befinden. Die Endlosförderer 13, 14 sind im dargestellten Ausführungsbeispiel Endlosketten, die mit Platten 15 versehen sind, deren Länge zumindest der Breite der Hölzer 1 entspricht und die über den Umfang der Endlosketten 13, 14 gleichmäßig verteilt angeordnet sind.In the transport direction 6 behind the clamping unit 5 is a first pressing unit 12 which is formed in a known manner. It has two rotatably driven endless conveyors 13, 14, which are located above and below the transport path for the woods 1. The endless conveyors 13, 14 are endless chains in the illustrated embodiment, which are provided with plates 15 whose length corresponds at least to the width of the woods 1 and which are arranged distributed uniformly over the circumference of the endless chains 13, 14.

Die Endlosförderer können auch durch Vorschubrollen oder sonstige Vorschubelemente gebildet sein. Wenn daher im Folgenden von Endlosketten die Rede ist, ist dies nicht als Beschränkung auf Ketten zu verstehen.The endless conveyor can also be formed by feed rollers or other feed elements. Therefore, when referring to endless chains below, this is not to be understood as a restriction to chains.

Die obere Endloskette 13 kann mit Hilfe von Druckzylindern 16 nach unten auf die Hölzer 1 gedrückt werden. Die Druckzylinder 16 sind in Portalträgern 17, 18 gehalten, die beiderseits der Transportbahn für die Hölzer 1 auf dem Maschinengestell 19 befestigt sind, das sich über die Länge der Presseinrichtung erstreckt.The upper endless chain 13 can be pressed by means of pressure cylinders 16 down on the woods 1. The impression cylinders 16 are held in gantries 17, 18, which are fastened on both sides of the transport path for the woods 1 on the machine frame 19, which extends over the length of the pressing device.

Die beiden Endlosketten 13, 14 werden mittels eines Antriebsaggregates 20 angetrieben, das sich im Bereich neben dem Maschinengestell 19 befindet. Das Antriebsaggregat 20 hat Antriebswellen 21, mit denen Kettenräder 22, 23 der Endlosketten 13, 14 drehbar angetrieben werden.The two endless chains 13, 14 are driven by means of a drive unit 20, which is located in the area next to the machine frame 19. The drive unit 20 has drive shafts 21, with which sprockets 22, 23 of the endless chains 13, 14 are rotatably driven.

Der Presseinheit 12 ist in Transportrichtung 6 mit Abstand eine zweite Presseinheit 24 nachgeschaltet, die vorteilhaft gleich ausgebildet ist wie Presseinheit 12. Darum wird die zweite Presseinheit 24 nicht näher beschrieben. Sie hat die beiden Endlosketten 25, 26, die jeweils mit den Platten 27 versehen sind. Die Endlosketten 25, 26 werden mittels der Kettenräder 28, 29 drehbar angetrieben, die mit den Antriebswellen 21 des Antriebsaggregates 20 antriebsverbunden sind. Die obere Endloskette 25 kann mit Hilfe der Druckzylinder 30 in der Höhe eingestellt werden.The pressing unit 12 is followed in the transport direction 6 by far a second pressing unit 24, which is advantageously the same design as the pressing unit 12. Therefore, the second pressing unit 24 is not described in detail. It has the two endless chains 25, 26, which are each provided with the plates 27. The endless chains 25, 26 are rotatably driven by means of the sprockets 28, 29, which are drivingly connected to the drive shafts 21 of the drive unit 20. The upper endless chain 25 can be adjusted by means of the pressure cylinder 30 in height.

Auch bei der Presseinheit 24 können als Endlosförderer 25, 26 nicht nur Endlosketten, sondern beispielsweise auch Vorschubrollen oder sonstige Vorschubelemente eingesetzt werden.Also in the press unit 24 can be used as endless conveyors 25, 26 not only endless chains, but for example, feed rollers or other feed elements.

Die beiden Presseinheiten 12, 24 bilden einen Teil der Durchlaufpresse, mit der in noch zu beschreibender Weise die Presskräfte erzeugt werden können, insbesondere wenn Hölzer 1 mit kleinerem Querschnitt zum Holzstrang 2 zusammengefügt werden sollen.The two press units 12, 24 form part of the continuous press, with which in the manner to be described, the pressing forces can be generated, especially when wood 1 are to be joined together with a smaller cross-section to the wood strand 2.

Im Bereich zwischen den beiden Presseinheiten 12, 24 befindet sich eine Andruckeinheit 31. Sie hat wenigstens ein Andrückelement 32, das sich in Transportrichtung 6 erstreckt und mittels zweier Druckeinheiten 33 auf die Hölzer 1 bzw. den Holzstrang 2 gedrückt wird. Die beiden Druckeinheiten 33 liegen in Transportrichtung 6 mit Abstand hintereinander.In the area between the two press units 12, 24 is a pressure unit 31. It has at least one pressing element 32 which extends in the transport direction 6 and is pressed by means of two pressure units 33 on the woods 1 and the wood strand 2. The two printing units 33 are in the transport direction 6 at a distance one behind the other.

Zur seitlichen Führung des Holzstranges 2 sind in der Andruckeinheit 31 Seitenandrückelemente 34 vorgesehen, die am benachbarten, in Transportrichtung 6 verlaufenden Seitenrand des Holzstranges 2 unter Druck anliegen. An der gegenüberliegenden Längsseite des Holzstranges 2 können ebenfalls solche Andrückelemente vorgesehen sein, so dass der Holzstrang 2 bei seinem Durchlauf durch die Presseinrichtung einwandfrei geführt ist.For lateral guidance of the wood strand 2 31 Seitenandrückelemente 34 are provided in the pressure unit, which rest on the adjacent, extending in the transport direction 6 side edge of the wood strand 2 under pressure. On the opposite longitudinal side of the wood strand 2 may also be provided such pressing elements, so that the wood strand 2 is properly guided in its passage through the pressing device.

Die Presseinrichtung kann auch so ausbildet sein, dass die in Fig. 1 erkennbaren Seitenandrückelemente 34 den Holzstrang 2 gegen einen Seitenanschlag belasten, an dem der Holzstrang 2 mit seiner in Transportrichtung 6 linken Längsseite anliegt.The pressing device can also be designed so that the in Fig. 1 recognizable Seitenandrückelemente 34 load the wood strand 2 against a side stop on which the wood strand 2 rests with its left in the transport direction 6 longitudinal side.

Weitere solche Seitenandrückelemente 34 sind vorteilhaft über die Länge der Presseinrichtung verteilt angeordnet (Fig. 1).Further such Seitenandrückelemente 34 are advantageously distributed over the length of the pressing device arranged ( Fig. 1 ).

In Transportrichtung hinter der zweiten Presseinheit 24 befindet sich eine weitere Spanneinheit 35, die sich am Austrittsende 36 der Presseinrichtung befindet. Die Spanneinheit 35 ist gleich ausgebildet wie die Spanneinheit 5, allerdings stationär in Bezug auf das Maschinengestell 19 positioniert. Die Spanneinheit 35 hat einen Presszylinder 37, mit dem ein Spannelement 38 auf den Holzstrang 2 gepresst werden kann.In the transport direction behind the second pressing unit 24 is another clamping unit 35, which is located at the outlet end 36 of the pressing device. The clamping unit 35 is the same as the clamping unit 5, but stationary in relation to the machine frame 19 is positioned. The clamping unit 35 has a pressing cylinder 37 with which a clamping element 38 can be pressed onto the wood strand 2.

Die beiden Spanneinheiten 5, 35 sind Bestandteil der Strangpresse, mit der Hölzer mit großem Querschnitt zum Holzstrang 2 verpresst werden können.The two clamping units 5, 35 are part of the extruder, can be pressed with the wood with a large cross section to the wood strand 2.

Werden, wie dies in der Mehrzahl der Anwendungsfälle vorgesehen ist, die Hölzer 1 im Durchlaufverfahren zum Holzstrang 2 zusammengefügt, dann erfolgt die Verpressung der Hölzer 1 zum Holzstrang 2 mittels der Presseinheiten 12, 24. Die Spannelemente 8, 38 der Spanneinheiten 5, 35 werden so zurückgezogen, dass sie geringen Abstand von den Hölzern 1 haben. Dann werden die Hölzer 1 mittels der Endlosketten 13, 14; 25, 26 durch die Presseinrichtung gefördert. Die an den Endlosketten 13, 14; 25, 26 vorgesehenen Platten 15, 27 liegen vorteilhaft ohne Abstand hintereinander, so dass die Hölzer 1 zuverlässig transportiert werden können. Im Bereich der beiden Presseinheiten 12, 24 werden die Hölzer 1 zwischen diesen Platten 15, 27 transportiert, wobei die obere Endloskette 13, 25 einen entsprechenden Druck auf die Hölzer 1 ausübt. Der in Transportlängsrichtung erforderliche Pressdruck wird dadurch erreicht, dass die obere und die untere Endloskette 13, 14 bzw. 25, 26 mit unterschiedlichen Geschwindigkeiten angetrieben werden. Die Größe des Geschwindigkeitsunterschiedes bestimmt die Höhe der in Längsrichtung des Holzstranges 2 wirkenden Presskraft. Mit Hilfe des Andrückelementes 32 wird der Holzstrang 2 beim Durchlauf durch die Presseinrichtung gegen eine Anlagefläche für den Holzstrang gedrückt.Are, as provided in the majority of applications, the woods 1 in a continuous process to wood strand 2 joined together, then the pressing of the woods 1 to 2 wood strand by means of the press units 12, 24. The clamping elements 8, 38 of the clamping units 5, 35 so withdrawn that they have little distance from the woods 1. Then the woods 1 by means of the endless chains 13, 14; 25, 26 conveyed by the pressing device. The at the endless chains 13, 14; 25, 26 provided plates 15, 27 are advantageously without spacing behind each other, so that the woods 1 can be reliably transported. In the area of the two press units 12, 24, the woods 1 are transported between these plates 15, 27, wherein the upper endless chain 13, 25 exerts a corresponding pressure on the woods 1. The pressing pressure required in the transport longitudinal direction is achieved in that the upper and lower endless chains 13, 14 and 25, 26 are driven at different speeds. The size of the speed difference determines the Height of the force acting in the longitudinal direction of the wood strand 2 pressing force. With the help of the pressing element 32 of the wood strand 2 is pressed while passing through the pressing device against a contact surface for the wood strand.

Sollen Hölzer 1 mit großem Querschnitt und dementsprechend erforderlicher hoher Presskraft verpresst werden, dann wird die Presseinrichtung so umgeschaltet, dass sie als Strangpresse arbeitet. In diesem Fall dienen die Endlosketten 13, 14; 25, 26 als Vorschubelemente. Der aus den Hölzern 1 gebildete Holzstrang 2 wird so weit transportiert, bis er in den Bereich der Spanneinheit 35 kommt. Dann wird der Vorschub des Holzstranges 2 angehalten. Das Spannelement 38 wird mit ausreichend hoher Kraft auf den Holzstrang 2 gepresst.If woods 1 are pressed with a large cross section and accordingly required high pressing force, then the pressing device is switched so that it works as an extruder. In this case, the endless chains 13, 14; 25, 26 as feed elements. The wood strand 2 formed from the woods 1 is transported until it comes into the region of the clamping unit 35. Then the feed of the wood strand 2 is stopped. The clamping element 38 is pressed with sufficient force on the wood strand 2.

Auch das Spannelement 8 der Spanneinheit 5 wird mit hoher Kraft auf die Hölzer 1 im Eintrittsbereich gedrückt.Also, the clamping element 8 of the clamping unit 5 is pressed with great force on the woods 1 in the entry area.

Anschließend wird am Eintrittsende 4 der Pressentisch 11 zusammen mit der Spanneinheit 5 in Vorschubrichtung der Hölzer 1 bzw. des Holzstranges 2 relativ zum Maschinengestell 19 verschoben, wodurch die Hölzer 1 innerhalb des Holzstranges 2 zusammengedrückt werden. Da beim Verpressvorgang die einzelnen Hölzer 1 in Längsrichtung des Holzstranges noch geringfügig zusammengeschoben werden, ist die Spanneinheit 5 in der beschriebenen Weise in Transportrichtung 6 beweglich am Maschinengestell 19 gelagert, so dass sie die erforderliche Längsbewegung beim Verpressen der Hölzer 1 innerhalb des Holzstranges 2 mitmachen kann.Subsequently, at the entry end 4 of the press table 11 is moved together with the clamping unit 5 in the feed direction of the timber 1 and the wood strand 2 relative to the machine frame 19, whereby the woods 1 are compressed within the timber strand 2. Since the individual woods 1 are slightly pushed together in the longitudinal direction of the wood strand during the pressing process, the clamping unit 5 is mounted in the manner described in the transport direction 6 movably on the machine frame 19, so that they can join the required longitudinal movement during the pressing of the woods 1 within the timber strand 2 ,

Wegen der hohen Presskräfte wird während des Pressvorganges die Antriebsverbindung zwischen dem Antriebsaggregat 20 und den Endlosketten 13, 14; 25, 26 unterbrochen. Zu diesem Zweck ist in den Antriebsstrang eine schaltbare Kupplung eingebaut, mit der gewährleistet ist, dass die Reaktionskraft beim Pressvorgang nicht über die Getriebe der Endlosketten geleitet wird.Because of the high pressing forces during the pressing process, the drive connection between the drive unit 20 and the endless chains 13, 14; 25, 26 interrupted. For this purpose, a switchable coupling is installed in the drive train, with the guarantee that the reaction force during the pressing process is not passed through the gear of the endless chains.

Anstelle der schaltbaren Kupplung ist es auch möglich, die Anpresskraft der oberen Endloskette 13, 25 so weit zu verringern, dass die Hölzer 1 bzw. der Holzstrang 2 während des Pressvorganges zwischen den Endlosketten 13, 14; 25, 26 durchrutschen kann.Instead of the switchable coupling, it is also possible to reduce the contact force of the upper endless chain 13, 25 so far that the woods 1 or the wood strand 2 during the pressing process between the endless chains 13, 14; 25, 26 can slip.

Mit der Presseinrichtung ist es in der beschriebenen Weise möglich, je nach Querschnitt der zu verpressenden Hölzer 1 den Holzstrang 2 im Durchlaufverfahren kontinuierlich oder im Strangpressverfahren getaktet zu verpressen. Es ist nur eine einzige Presseinrichtung vorgesehen, die wenig Raum in Anspruch nimmt und daher auch in kleineren Hallen aufgestellt werden kann. Die Hölzer 1 werden unabhängig davon, ob sie getaktet oder durchlaufend zum Holzstrang 2 verpresst werden, in einer Richtung durch die Presseinrichtung transportiert. Dies ermöglicht eine einfache und maschinenseitig nur geringen Aufwand erfordernde Gestaltung der Presseinrichtung,With the pressing device, it is possible in the manner described, depending on the cross section of the wood to be compressed 1 to press the wood strand 2 in a continuous process continuously or clocked by the extrusion process. It is provided only a single pressing device that takes up little space and therefore can be installed in smaller halls. The woods 1, regardless of whether they are clocked or continuously pressed to the wood strand 2, transported in one direction by the pressing device. This allows a simple and machine-side requiring only little effort design of the pressing device,

Der Holzstrang 2 wird hinter dem Austrittsende 36 in bekannter Weise in einzelne Strangteile aufgeteilt.The wood strand 2 is divided behind the outlet end 36 in a known manner into individual strand parts.

Abweichend vom dargestellten Ausführungsbeispiel kann die Spanneinheit 5 am Eintrittsende 4 stationär und die Spanneinheit 35 am Austrittsende 36 beweglich vorgesehen sein. In diesem Fall wird der Holzstrang 2 durch Verschieben der Spanneinheit 35 entgegen Vorschubrichtung zusammengedrückt.Notwithstanding the illustrated embodiment, the clamping unit 5 stationary at the inlet end 4 and the clamping unit 35 may be provided movably at the outlet end 36. In this case, the wood strand 2 is compressed by moving the clamping unit 35 counter to the feed direction.

Es ist auch eine Ausführungsform denkbar, bei der beide Spanneinheiten 5, 35 verschiebbar sind. Zum Zusammendrücken der Hölzer 1 im Holzstrang 2 werden die beiden Spanneinheiten 5, 35 entgegengesetzt zueinander verschoben.It is also an embodiment conceivable in which both clamping units 5, 35 are displaceable. To compress the woods 1 in the wood strand 2, the two clamping units 5, 35 are shifted opposite to each other.

Claims (10)

Presseinrichtung mit für die Herstellung von Holzsträngen aus mit ihren Stirnseiten aneinander liegenden Hölzern, mit wenigstens einer Presseinheit (12, 24), durch die die Hölzer (1) transportierbar und mit denen sie mit ihren Stirnseiten aneinanderliegend verpressbar sind,
dadurch gekennzeichnet, dass der Presseinheit (12, 24) wenigstens eine erste Spanneinheit (5) vorgeschaltet und wenigstens eine zweite Spanneinheit (35) nachgeschaltet ist.Pressing device with for the production of wood strands of juxtaposed with their faces wood, with at least one pressing unit (12, 24) through which the woods (1) transportable and with which they are pressed together with their front sides,
characterized in that the pressing unit (12, 24) at least a first clamping unit (5) upstream and at least a second clamping unit (35) is connected downstream. Presseinrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass mindestens eine der Spanneinheiten (5, 35) in Längsrichtung der Hölzer (1) bewegbar ist.Pressing device according to claim 1,
characterized in that at least one of the clamping units (5, 35) in the longitudinal direction of the woods (1) is movable. Presseinrichtung nach Anspruch 2,
dadurch gekennzeichnet, dass die erste Spanneinheit (5) in Transportrichtung (6) der Hölzer (1) bewegbar ist.Pressing device according to claim 2,
characterized in that the first clamping unit (5) in the transport direction (6) of the woods (1) is movable. Presseinrichtung nach Anspruch 2 oder 3,
dadurch gekennzeichnet, dass die zweite Spanneinheit (35) stationär angeordnet ist.Pressing device according to claim 2 or 3,
characterized in that the second clamping unit (35) is arranged stationary. Presseinrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass beide Spanneinheiten (5, 35) jeweils wenigstes ein Spannelement (8, 38) aufweisen, das unter Spanndruck auf die Hölzer (1) pressbar ist.Pressing device according to one of claims 1 to 4,
characterized in that both clamping units (5, 35) each least a clamping element (8, 38) which can be pressed under clamping pressure on the woods (1). Presseinrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die Presseinheit (12,1 4) wenigstens zwei übereinander angeordnete Vorschubelemente (13, 14; 25, 26) aufweist, zwischen denen die Hölzer (1) transportierbar sind.Pressing device according to one of claims 1 to 5,
characterized in that the pressing unit (12,1 4) at least two superimposed feed elements (13, 14, 25, 26), between which the woods (1) are transportable. Presseinrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass das obere Vorschubelement (13, 25) unter Druck auf die Hölzer (1) pressbar ist.Pressing device according to claim 6,
characterized in that the upper feed element (13, 25) under pressure on the woods (1) can be pressed. Presseinrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass in der Antriebsverbindung zwischen den Vorschubelementen (13, 14; 25, 26) und einem Antriebsaggregat (20) eine schaltbare Kupplung sitzt.Pressing device according to one of claims 1 to 7,
characterized in that in the drive connection between the feed elements (13, 14, 25, 26) and a drive unit (20) sits a switchable coupling. Presseinrichtung nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass sie zwei in Transportrichtung (6) der Hölzer (1) hintereinander liegende Presseinheiten (12, 24) aufweist.Pressing device according to one of claims 1 to 8,
characterized in that it comprises two in the transport direction (6) of the woods (1) one behind the other lying pressing units (12, 24). Presseinrichtung nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, dass die Vorschubelemente (13, 14; 25, 26) drehbar angetriebene Endlosketten sind.Pressing device according to one of claims 1 to 9,
characterized in that the advancing elements (13, 14, 25, 26) are rotatably driven endless chains.
EP18000467.3A 2017-05-22 2018-05-17 Press device for the production of wood strands from wood Active EP3409435B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201830135T SI3409435T1 (en) 2017-05-22 2018-05-17 Press device for the production of wood strands from wood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017005070.8A DE102017005070A1 (en) 2017-05-22 2017-05-22 Pressing device for the production of wood strands from wood

Publications (2)

Publication Number Publication Date
EP3409435A1 true EP3409435A1 (en) 2018-12-05
EP3409435B1 EP3409435B1 (en) 2020-08-19

Family

ID=62222371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18000467.3A Active EP3409435B1 (en) 2017-05-22 2018-05-17 Press device for the production of wood strands from wood

Country Status (4)

Country Link
EP (1) EP3409435B1 (en)
CA (1) CA3005432A1 (en)
DE (1) DE102017005070A1 (en)
SI (1) SI3409435T1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185800B (en) * 1962-04-27 1965-01-21 Huebel & Platzer Device for continuous longitudinal joining of workpieces, in particular for longitudinally gluing workpieces made of wood
DE1628977A1 (en) * 1967-08-01 1971-02-25 Hombak Maschinenfab Kg System for gluing end grains, e.g. by means of finger joints
US3790427A (en) * 1970-12-08 1974-02-05 A Marstrand Apparatus for joining wooden parts
DE4417514C1 (en) * 1994-05-19 1995-05-04 Grecon Greten Gmbh & Co Kg Method for the intermittent pressing of finger joints and press with intermittent loading therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE926037C (en) * 1953-07-26 1955-04-04 Siemens Ag Device for producing butt joints, e.g. B. for Schaeften wooden beams by gluing
DE1229274B (en) * 1960-12-23 1966-11-24 Hanns Hess Device for the production of glued finger joint joints on workpieces made of wood or wood-based material
US4294647A (en) * 1980-05-20 1981-10-13 Strickler Melvin D Wood finger jointing apparatus
SI24654A (en) * 2015-05-06 2015-09-30 Gregor Ledinek Production line for the continuous longitudinal butt joining of oblong wood workpieces with toothed vertical joints

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185800B (en) * 1962-04-27 1965-01-21 Huebel & Platzer Device for continuous longitudinal joining of workpieces, in particular for longitudinally gluing workpieces made of wood
DE1628977A1 (en) * 1967-08-01 1971-02-25 Hombak Maschinenfab Kg System for gluing end grains, e.g. by means of finger joints
US3790427A (en) * 1970-12-08 1974-02-05 A Marstrand Apparatus for joining wooden parts
DE4417514C1 (en) * 1994-05-19 1995-05-04 Grecon Greten Gmbh & Co Kg Method for the intermittent pressing of finger joints and press with intermittent loading therefor

Also Published As

Publication number Publication date
DE102017005070A1 (en) 2018-11-22
EP3409435B1 (en) 2020-08-19
CA3005432A1 (en) 2018-11-22
SI3409435T1 (en) 2021-02-26

Similar Documents

Publication Publication Date Title
DE3913991C2 (en) Continuously working press
DE936718C (en) Crawler press for the production of chipboard
EP1669175A1 (en) Glueing press for laminar wood elements as well as method for pressing said elements
DE1195464B (en) Press for the continuous pressing of a product pulled through between its two punches by means of two endless chains, in particular plywood
DE4314641C2 (en) Tenter frame for deep drawing machines
DE102005043604A1 (en) Protective cover and stabilizing element for this
AT505211B1 (en) DEVICE FOR PRODUCING WOODEN STRIKES MARKED BY RIVETED WEDGE PINE COMPOUNDS
DE2243267A1 (en) MACHINE FOR THE PRODUCTION OF WOOD FIBER PANELS
DE202020105783U1 (en) Pressing device for a device for the production of wood strands from glued finger-jointed wood
EP0458806B1 (en) Process and installation for manufacturing particle boards and the like
DE3211994C2 (en) Woodworking machine
DE3224670C2 (en)
EP3409435B1 (en) Press device for the production of wood strands from wood
DE102005019511A1 (en) Device for automated exchange of stacks at sheet processing unit, comprises carrying bars with open air ducts
DE202015102390U1 (en) Continuously working press
DE4038486C2 (en)
DE3046525A1 (en) "CONTINUOUSLY WORKING PRESS"
EP0342196A1 (en) Device for straightening boards and the like.
DE19810574B4 (en) Device for actuating presses in clamping devices for the assembly of furniture
DE1810258C3 (en) Device for pressing and vulcanizing or heat curing continuous workpieces made of rubber or plastic
DE102011103289B4 (en) Method and apparatus for assembling components of sandwich framed doors and sandwich frame furniture panels
DE202017103053U1 (en) Prepress and system for the continuous production of material plates and transport device for receiving the press belt
DE3039075C2 (en) Soldering machine
DE2512185C2 (en) Device for gluing panels on the front
DE102021126100A1 (en) Pressing device for a device for producing strands of wood from glued finger-jointed wood and method for operating such a pressing device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190605

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: B27M 3/00 20060101AFI20200212BHEP

Ipc: B30B 15/30 20060101ALI20200212BHEP

INTG Intention to grant announced

Effective date: 20200311

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018002190

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1303420

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201119

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201119

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201221

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201120

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018002190

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

26N No opposition filed

Effective date: 20210520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210517

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210517

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220517

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220517

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20180517

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SI

Payment date: 20230407

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230726

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200819