EP2569131B1 - Dispositif et procédé pour l'assemblage de bandes de placage avec espace d'expansion - Google Patents
Dispositif et procédé pour l'assemblage de bandes de placage avec espace d'expansion Download PDFInfo
- Publication number
- EP2569131B1 EP2569131B1 EP11713187.0A EP11713187A EP2569131B1 EP 2569131 B1 EP2569131 B1 EP 2569131B1 EP 11713187 A EP11713187 A EP 11713187A EP 2569131 B1 EP2569131 B1 EP 2569131B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- veneer
- hot air
- adhesive
- outlet
- veneer strips
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 17
- 239000000853 adhesive Substances 0.000 claims description 80
- 230000001070 adhesive effect Effects 0.000 claims description 80
- 230000004913 activation Effects 0.000 claims description 21
- 238000005304 joining Methods 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 238000001994 activation Methods 0.000 description 20
- 238000011109 contamination Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 241000950638 Symphysodon discus Species 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- HOQADATXFBOEGG-UHFFFAOYSA-N isofenphos Chemical compound CCOP(=S)(NC(C)C)OC1=CC=CC=C1C(=O)OC(C)C HOQADATXFBOEGG-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
Definitions
- the present invention relates to an apparatus and method for assembling veneer strips with an expansion space in an adhesive activation zone, in particular for avoiding contact between activated adhesive on the veneer strips and components of the device.
- devices for assembling veneer strips are known from the prior art in different embodiments. Basically, devices must be distinguished in which a gluing station is preformed, which glues the edges of the veneer strips and then immediately after the assembly takes place. Alternatively, the edges of veneers may be pre-wetted with an adhesive, in particular polyvinyl acetate (PVAc) dispersion adhesive, and intermediately stored. This storage over several months or even years is possible.
- PVAc polyvinyl acetate
- the veneers in the device is fed and the adhesive dried at the edges must be activated. This can be done for example by means of hot air. After activation, the veneer strips can then be joined together.
- the dependent claims show preferred developments of the invention.
- the inventive device for assembling veneer strip with the features of claim 1 has the advantage over that pollution of the device can be avoided by adhesive residues. As a result, a cost-effective and continuous composition of veneer strips with high-quality adhesive joint can be performed.
- the device has an adhesive activation station, which has at least one hot air source and a hot air path emanating from the hot air source with an outlet element.
- the outlet element comprises an outlet opening and an expansion space.
- the outlet opening and additionally the expansion space are provided in the outlet element. Hot air flows out of the outlet opening and flows past the edges of the veneer strip passing over the outlet opening in order to move the
- the outlet opening and the expansion space are arranged below and / or above a Veneierzuschreibebene so that the hot air is fed from below and / or above to the veneer edges.
- the expansion space can also serve as a drainage device for excess adhesive.
- the invention is particularly suitable for the use of a dispersion adhesive (especially mixed white glue) on the veneer edges, which has the great advantage that it is free of formaldehyde and is very easy to handle. Furthermore, a dispersion adhesive is also very inexpensive compared to other adhesives.
- a dispersion adhesive especially mixed white glue
- the expansion space and the outlet opening are fluidically connected with each other, wherein preferably the outlet opening opens into the expansion space.
- the outlet opening opens into the expansion space.
- the expansion space as an expansion channel in particular as a rectilinear, extending in a conveying direction of the veneer strip expansion channel is formed.
- the expansion channel is parallel to the joint of the veneer strip, so that during the incipient joining process, in which the veneer strips are continuously moved in the conveying direction over the entire distance from the hot air outlet to the joining zone, if necessary, the adhesive expands in the expansion channel, without doing to come in contact with machine parts.
- excess adhesive joint residues may be ground off the produced veneer carpet.
- the hot air can be excellently guided along the expansion channel.
- the device comprises an air flow deflection device, which is arranged above the outlet opening.
- the air flow deflection device serves for channeling the hot air in order to activate the adhesive at the veneer edges in the entire surrounding area of the outlet opening of the hot air and before the composition zone, whereby more uniform heating of the adhesive and better utilization of the thermal energy is achieved in these areas.
- a higher ambient temperature is achieved in the entire surrounding area of the outlet opening.
- the exiting through the outlet hot air is thus passed through the gap between the two veneer strips to be joined and meets the air flow deflection device.
- the hot air is deflected, in particular in the conveying direction of the veneer strip and, in addition, the air flow deflection device itself also heats up. In this way, a faster activation of the adhesive can be achieved.
- the air flow deflection device is preferably made of a material with good thermal conductivity. As a result, a very good heat distribution at the air flow deflection device is achieved, so that an activation region for the adhesive is not only present directly at the outlet opening for the hot air, but the activation takes place due to the high temperatures in preceding or subsequent sections.
- the air flow diverter is made of copper sheet.
- a distance between a surface of the outlet element and the air flow deflection device is slightly larger than a thickness of the veneer strips. In this way, a targeted flow of the hot air can be provided first through the gap between the veneer strips to be joined and then along the air flow deflection device.
- the air flow deflection device has a surface such that a coefficient of friction between the surface and the veneer strip is as small as possible.
- the surface of the air flow deflection device has a Teflon coating or the like.
- the air flow deflection device has at least one air passage opening. This makes it possible that supplied hot air can escape from the air passage opening on the veneer strip. This prevents in particular unwanted noise by vibrating veneer strips.
- the air passage opening may, for example, be in the form of a slot or row of holes, e.g. cylindrical holes or slots are provided. More preferably, the air passage opening on a side facing the expansion space on a recessed recess. The air passage opening is preferably provided such that it is arranged completely or partially above the expansion space and in particular above the outlet opening of the hot air.
- the device comprises a pressure roller for exerting a vertical pressure on the veneer strip, wherein the expansion space in the outlet element extends into the region of the pressure roller and particularly preferably up to a region of a vertical projection of a rotation axis of the pressure roller.
- the expansion space preferably extends below the axis of rotation of the pressure roller, since here the pressure roller is in contact with the veneer strip and, if appropriate, excess adhesive can still escape from the joining area between the two veneer strips.
- the hot air path opens at the outlet element perpendicular to the surface of the outlet element.
- the hot air path at the outlet element also emerge at an angle.
- the angle is between 30 ° and 60 °, preferably 45 °, wherein the outlet direction of the hot air is directed in Veneierennecardiraum.
- the inventive method according to claim 12 allows a very high quality, blunt composite veneer joint between two veneer strips Prevent contamination of a veneer splicer.
- a dispersion adhesive applied to the edges of the veneer strips is activated by means of hot air exiting an exit element and subsequently the veneer strips are applied to the adhesive-activated veneer edges blunted.
- the veneer strips are guided past an expansion space of the exit element in order to avoid contact of the activated dispersion adhesive with machine parts.
- the expansion space extends into a transition region between an activation region in which the dispersion adhesive is activated and a joining region in which the veneer strips are joined.
- the expansion space By providing the expansion space and passing the adhesive-activated veneer edges to this expansion space, soiling of the machine can be avoided.
- the expansion space makes it possible that the activated veneer edges no longer come into direct contact with machine parts of the machine until the beginning of joining, where they cause soiling.
- an immediate adhesion of the adhesive to subsequent machine parts can be avoided.
- the quality of joining is not impaired by this, since if necessary, excess adhesive is pushed out by the compression of the veneer strips on the veneer edges and can then be simply cured and subsequently abraded.
- the method is particularly effective when the expansion space is preferably provided as an expansion channel and an outlet opening opens into the expansion channel, so that the exiting the outlet opening hot air also flows into the expansion channel.
- an improved activation of the dispersion adhesive and higher temperatures in the activation region of the machine can be achieved.
- FIGS. 1 to 3 a method and an apparatus 1 for assembling veneer strips according to a first embodiment of the invention described in detail.
- the device 1 comprises a Veneierzuschreibebene E, in which veneer strips 2 are supplied.
- the feeding of the veneer strips can be done manually or automatically.
- two veneer strips 2 are always fed in parallel, wherein at the facing edges 2a of the veneer strip already an adhesive is applied, which must be activated in a subsequent step.
- the device 1 comprises an adhesive activation station 3, which is then followed by a veneer filling station 4. In the adhesive activation station 3, the adhesive present at the edges 2 a is activated, so that joining of the veneer strips is then possible in the subsequent step.
- the adhesive may preferably be a formaldehyde-free dispersion adhesive applied to the edges 2a, wherein the applied adhesive, may have been applied several months earlier at the veneer edges.
- the adhesive activation station 3 comprises a stationary hot air source 5 and a hot air path 6 emanating from the hot air source 5 with an outlet element 7.
- the outlet element 7 comprises an outlet opening 8 and, as an expansion space, a rectilinear groove 9 with a preferably rectangular or U-shaped cross section.
- the groove 9 opens, as seen from Fig. 1 and 3 can be seen, in the outlet opening 8 and starts from this. How out Fig. 1 it can be seen, the groove 9 and the outlet opening 8 is arranged below the veneer feed plane E.
- the hot air flows from below through the exit element 7 in the gap 10 between the two veneer strips 2 to be joined (see Fig. 2 ), wherein the groove 9 has a width which is greater than the gap 10.
- the outlet opening 8 has a larger diameter than the hot air path 6.
- a screw-threaded, cylindrical hollow pin 17 may be provided, which has a central passage opening 17a, through which the hot air path 6 is passed.
- the hot air can then be guided through the hollow bolt 17 to the outlet opening 8 and the outlet member 7 are fastened in a simple manner to another component 18.
- the device 1 further comprises an air flow deflection device 11 and a separating web 12.
- the air flow deflection device 11 is, as seen from Fig. 1 can be seen attached to the divider and formed as a copper sheet and is above the outlet opening. 8 and partially disposed over the groove 9.
- the air flow deflection device 11 has the task of redirecting the emerging from the outlet opening 8 hot air, which flows through the gap 10 between the two veneer strips 2, to redirect. This is in Fig. 1 indicated by the arrow B, wherein the arrow A indicates the hot air flowing from the hot air source 5 through the hot air path 6 hot air.
- a conveying direction of the veneer strips 2 is marked with the arrow C.
- the device 1 further comprises in a known manner two Diskusectomyn 13, 14 and a pressure roller 15, which rotates about a center 16. How out Fig. 1 it can be seen, the groove 9 is arranged in the conveying direction C of the veneer strip so that it extends to a vertical projection of the rotation point 16 of the pressure roller 15.
- the function of the device 1 according to the invention is as follows.
- the veneer strips already have adhesive at their edges 2a, which was applied there in a preceding step, whereby the adhesive may be dried or at least dried. This may have happened some time before.
- the veneer strips are then fed into the veneer feed plane E, whereby the veneer strips can be applied to the separating web 12 for a simple alignment.
- the veneer strips 2 are then moved manually or by a chain drive in the direction of the conveying direction C of the veneer strips and guided over the outlet element 7.
- the alignment of the veneer strips 2 is such that the gap 10 between the two veneer strips is above the outlet opening 8 in the outlet element 7.
- Hot air which is supplied through the hot air path 6 to the outlet opening 8, then exits between the two veneers 2 at the edges 2a provided with adhesive and activates the adhesive present there.
- the activated adhesive can experience a reduction in viscosity. This increases the risk of adhesion and partial stripping on surrounding components, which can come into direct contact with the adhesive-wetted veneer edges 2a.
- the groove 9 thus provides an expansion space available, so that sticking and stripping is omitted.
- excess adhesive can also be collected in the groove 9.
- the veneer strips 2 are continuously passed further past the adhesive activation station 3.
- the veneer strips are conveyed through the two Diskusscalen 13, 14 and the pressure roller 15.
- the air flow deflection device 11 arranged above the outlet opening 8 and a partial region of the outlet element 7 additionally supports the activation process, since the hot air is diverted at the air flow deflection device 11.
- the hot air path 6 opens perpendicular to a surface 7a of the outlet element 7, the hot air is diverted both in the conveying direction C of the veneer strips and counter to the conveying direction of the veneer strips.
- the groove 9 can be prevented that excess adhesive is further transported through the device 1 and then dirty other components of the device or adhesive by contact of the activated adhesive with machine parts glue to the machine parts, which then in the subsequent joining step for the production Instead, the excess adhesive may optionally be collected in the groove 9 and the groove 9 may then be easily cleaned after joining a certain number of veneer strips 2.
- Fig. 4 a device for assembling veneer strip according to a second embodiment of the invention described, wherein the same or functionally identical parts are denoted by the same reference numerals as in the first embodiment.
- the device 1 of the second embodiment additionally comprises a second stationary hot air source 25 with a second hot air path 26.
- the second hot air source 25 and the second hot air path 26 are arranged above the Veneierzuschreibebene E, so that hot air additionally from the top of the edges the veneer strip 2 can be supplied (arrow R).
- a second outlet opening 28 of the second hot air path 26 is in the conveying direction C of the veneer strips at the same height as the outlet opening 8 of the first hot air path 6.
- the second hot air path 26 is passed through the air flow deflection device 11. Further, in the air flow deflection device 11, a second expansion space in the form of a second, in the conveying direction C of the veneer strip 2 extending second groove 29 is formed.
- Hot air then flows out of the second outlet opening 28 into the second groove 29, wherein the two hot air streams flow against each other and partially flow against the veneer surfaces and are thereby deflected.
- the first groove 9 and the second groove 29 lie one above the other, wherein the mutually facing edges of the two veneer strips to be joined are passed exactly between the two grooves 9, 29.
- a hot air flow can be added both from below and from above to the gap 10 between the two veneer strips 2, so that an optimum heating of the applied adhesive at the edges of the veneer strips 2 is obtained. Since the adhesive located on the edges can expand in all directions when heated, in the second exemplary embodiment, in particular, adhesive is prevented from coming into contact with the airflow deflection device 11 and so that contamination or buildup can be avoided there. How out Fig. 4 it can be seen, the second groove 29 is formed over the, starting from the second outlet opening 28 in the conveying direction C, lying, full length of the air flow deflection device 11.
- a width and / or a depth of the first groove 9 and the second groove 29 is equal.
- a common hot air source may alternatively be provided for the first and second hot air paths. As a result, costs and space can be saved.
- a mouth of the hot air is formed on the outlet element 7 different from the mouths of the preceding embodiments.
- a nozzle 37 is fixed in the outlet element 7, which has a channel-like mouth section 38.
- the mouth cross section 38 opens into an elongated groove 9 and preferably has a same width as the groove 9.
- the length of the channel-like orifice cross-section 38 can also be provided such that its length corresponds to that of the groove 9.
- FIGS. 7 and 8 a device according to a fourth embodiment of the invention is shown, wherein the same or functionally identical are denoted by the same reference numerals as in the preceding embodiments.
- the fourth embodiment substantially corresponds to the first embodiment, wherein additionally in the fourth embodiment, a slot 40 is provided in the air flow deflection device 11.
- the slot 40 is provided centrally in the air flow diverter 11 and extends as shown Fig. 7 it can be seen, above the expansion space designed as a groove 9.
- By providing the additional slot 40 in the air flow deflection device 11 can thus Hot air, which emerges from the hot air path at the outlet opening 8 and flows past the edges 2a of the veneer strip, in part also emerge from the slot 40.
- Fig. 7 indicated by the arrow D. This prevents in particular that the veneer strips begin to oscillate in the area of the air flow deflection device 11 and produce unwanted noise. How out Fig.
- the slot 40 is provided such that, starting from a free end of the air flow deflection device 11 in the direction of the separating web 12, it runs in a line with the separating web 12.
- the width of the slot 40 is constant.
- FIG. 9 shows an embodiment in which an air passage opening in the air flow deflection device 11 is formed by a plurality of cylindrical holes 4 'arranged in series.
- Fig. 10 shows an alternative embodiment, in which the air passage opening is provided in the air flow deflection device 11 arranged in series slots 42.
- Fig. 11 shows a further alternative embodiment, in which at the air passage opening, which in turn is formed as a slot 40, on the side facing the groove 9, a recessed recess is provided.
- adhesive in particular glue, adheres to the underside of the air flow deflection device 11. Therefore, the recess 43 is also provided slightly wider than the air passage opening.
- the present invention by providing an expansion space in the adhesive activation zone, contact of the activated adhesive with components of the veneer strip assembling apparatus 1 can be prevented. As a result, downtime of the device due to cleaning work can be minimized.
- the expansion space is particularly preferably provided until the beginning of the joining zone in a channel-like form. Furthermore, an improved heating of the adhesive and thus an improved utilization of the heat energy can be achieved.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Decoration By Transfer Pictures (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Claims (15)
- Dispositif (1) pour l'assemblage de bandes de placage (2), comprenant :- un plan d'alimentation en placage (E) sur lequel les bandes de placage (2) sont amenées,- une station d'assemblage de placage (4) dans laquelle les bandes de placage (2) sont assemblées par leurs bords (2a), et- une station d'activation de colle (3) qui active une colle qui est appliquée sur un bord (2a) des bandes de placage (2),- sachant que la station d'activation de colle (3) présente une source d'air chaud (5) et un chemin d'air chaud (6) qui, partant de la source d'air chaud (5), présente un élément de sortie (7),
caractérisé en ce que
l'élément de sortie (7) présente une ouverture de sortie (8) et un espace d'expansion (9), sachant que de l'air chaud s'écoule de l'ouverture de sortie (8) et passe sur les bords (2a) des bandes de placage (2) pour activer la colle sur lesdits bords (2a), et- sachant que l'élément de sortie (7) est disposé sous et / ou au-dessus du plan d'alimentation en placage (E). - Dispositif selon la revendication 1, caractérisé en ce que l'ouverture de sortie (8) de l'élément de sortie (7) débouche dans l'espace d'expansion (9).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'espace d'expansion est un canal d'expansion, en particulier un canal d'expansion en ligne droite, qui s'étend dans une direction de transport (C) des bandes de placage.
- Dispositif selon l'une des revendications précédentes, qui comprend de plus un système de déviation du flux d'air (11) qui est disposé à l'opposé, au-dessus de l'ouverture de sortie (8),- sachant en particulier que le système de déviation du flux d'air (11) est fabriqué à partir d'un matériau présentant une bonne conductivité thermique, en particulier d'un matériau contenant du métal.
- Dispositif selon la revendication 4, caractérisé en ce que- un intervalle entre une surface (7a) de l'élément de sortie et le système de déviation du flux d'air (11) est un peu plus grand qu'une épaisseur des bandes de placage (2) et / ou- le système de déviation du flux d'air (11) présente une surface telle qu'il résulte un petit coefficient de frottement entre la surface du système de déviation du flux d'air (11) et les bandes de placage (2).
- Dispositif selon l'une des revendications 4 ou 5, caractérisé en ce que le système de déviation du flux d'air (11) présente au moins une ouverture de passage d'air (40 ; 41 ; 42).
- Dispositif selon la revendication 6, caractérisé en ce que- l'ouverture de passage d'air (40 ; 41 ; 42) comprend une fente ou une rangée de trous, en particulier une rangée de nombreux trous cylindriques et / ou de nombreux trous oblongs, ou- l'ouverture de passage d'air (40 ; 41 ; 42) présente un évidement approfondissant (43), situé à un endroit dirigé vers l'espace d'expansion (9).
- Dispositif selon l'une des revendications 6 ou 7, caractérisé en ce qu'au moins une section partielle de l'ouverture de passage d'air (40 ; 41 ; 42) est disposée au-dessus de l'espace d'expansion (9) et en particulier au-dessus de l'ouverture de sortie (8).
- Dispositif selon l'une des revendications précédentes,- comprenant de plus un rouleau de pression (15) qui est destiné à exercer une pression (F) sur les bandes de placage (2), sachant que l'espace d'expansion (9) s'étend dans l'élément de sortie (7) jusque dans la région du rouleau de pression (15), de préférence jusque dans une région d'une projection perpendiculaire à un axe de rotation (16) du rouleau de pression (15) et / ou- comprenant de plus un boulon creux (17) à travers lequel s'étend le chemin d'air chaud (6), sachant que l'élément de sortie (7) est fixé à un composant (18) au moyen du boulon creux (17).
- Dispositif selon l'une des revendications précédentes, caractérisé en ce que le chemin d'air chaud (6) débouche sur l'élément de sortie (7), perpendiculairement à la surface (7a) de l'élément de sortie, ou que le chemin de l'air chaud (6) débouche sur l'élément de sortie (7) en formant, par rapport à la surface de l'élément de sortie, un angle situé de préférence entre 30° et 60°, en particulier un angle de 45°.
- Dispositif selon l'une des revendications 2 à 10, caractérisé en ce que l'ouverture de sortie (8) présente une section transversale d'embouchure genre canal (38) ou une section transversale d'embouchure ovale.
- Procédé d'assemblage de bandes de placage (2) qui comprend les étapes suivantes :- Amenée d'une paire de bandes de placage (2) sur un plan d'alimentation en placage (E),- activation d'une colle en dispersion appliquée sur un bord (2a) des bandes de placage (2) au moyen d'air chaud qui s'échappe d'un élément de sortie (7),
et- assemblage des bandes de placage (2) par les bords (2a) activés desdites bandes de placage, caractérisé en ce que
les bandes de placage (2) sont conduites le long d'un espace d'expansion (9), formé sur l'élément de sortie (7), pour éviter un contact entre la colle en dispersion activée et des pièces de la machine. - Procédé selon la revendication 12,
caractérisé en ce que l'espace d'expansion (9) est un canal d'expansion et qu'une ouverture de sortie (8) débouche dans le canal d'expansion de telle manière que de l'air chaud s'écoule aussi dans le canal d'expansion. - Procédé selon l'une des revendications 12 ou 13, caractérisé en ce que l'air chaud est amené sur les bords de placage d'en haut et / ou d'en bas.
- Procédé selon l'une des revendications 12 à 14, caractérisé en ce que l'air chaud est dévié au moyen du système de déviation du flux d'air (11), sachant que le système de déviation du flux d'air (11) présente en particulier une ouverture de passage d'air (40 ; 41 ; 42).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010020293 DE102010020293A1 (de) | 2010-05-12 | 2010-05-12 | Vorrichtung und Verfahren zur Zusammensetzung von Furnierstreifen mit Expansionsraum |
PCT/EP2011/001685 WO2011141101A1 (fr) | 2010-05-12 | 2011-04-05 | Dispositif et procédé pour l'assemblage de bandes de placage avec espace d'expansion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2569131A1 EP2569131A1 (fr) | 2013-03-20 |
EP2569131B1 true EP2569131B1 (fr) | 2015-09-23 |
Family
ID=44168178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11713187.0A Active EP2569131B1 (fr) | 2010-05-12 | 2011-04-05 | Dispositif et procédé pour l'assemblage de bandes de placage avec espace d'expansion |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2569131B1 (fr) |
CN (1) | CN102971122A (fr) |
DE (1) | DE102010020293A1 (fr) |
TW (1) | TW201139093A (fr) |
WO (1) | WO2011141101A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012213796B4 (de) * | 2012-08-03 | 2021-03-25 | Brandt Kantentechnik Gmbh | Verfahren und Vorrichtung zum Beschichten von Werkstücken |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1443784A (en) * | 1921-06-13 | 1923-01-30 | Black Bros Company | Veneer-taping machine |
US1916134A (en) * | 1929-09-19 | 1933-06-27 | Laminating Patents Corp | Process of rapid edge gluing wood sheets and the product thereof |
DE3304315A1 (de) * | 1983-02-09 | 1984-08-09 | Heinrich Kuper GmbH & Co KG, 4835 Rietberg | Furnier-zusammensetzmaschine |
DE3510147A1 (de) * | 1985-03-21 | 1986-09-25 | Carl Rückle Maschinenbau GmbH, 7302 Ostfildern | Vorrichtung zum beleimen streifenfoermiger flaechen zweier werkstuecke |
DE69131130D1 (de) * | 1990-07-24 | 1999-05-20 | Oneill Inc | Vorrichtung und verfahren zur bildung einer klebenaht zwischen elastisch zusammendrückbaren gewebetüchern |
WO2000032370A2 (fr) * | 1998-11-27 | 2000-06-08 | Vesterby Træteknik Aps | Procede et appareil de jointement bord a bord de bandes de placage |
DK173988B1 (da) * | 1998-11-27 | 2002-03-25 | Vesterby Traeteknik As | Fremgangsmåde og apparat til kantsammenføjning af pladsdele af træfiner |
-
2010
- 2010-05-12 DE DE201010020293 patent/DE102010020293A1/de not_active Ceased
-
2011
- 2011-04-05 WO PCT/EP2011/001685 patent/WO2011141101A1/fr active Application Filing
- 2011-04-05 CN CN2011800236057A patent/CN102971122A/zh active Pending
- 2011-04-05 EP EP11713187.0A patent/EP2569131B1/fr active Active
- 2011-04-13 TW TW100112886A patent/TW201139093A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
DE102010020293A1 (de) | 2011-11-17 |
CN102971122A (zh) | 2013-03-13 |
WO2011141101A1 (fr) | 2011-11-17 |
TW201139093A (en) | 2011-11-16 |
EP2569131A1 (fr) | 2013-03-20 |
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