CA2425394A1 - Separating mechanism in an apparatus for the gluing of wood blocks - Google Patents
Separating mechanism in an apparatus for the gluing of wood blocks Download PDFInfo
- Publication number
- CA2425394A1 CA2425394A1 CA 2425394 CA2425394A CA2425394A1 CA 2425394 A1 CA2425394 A1 CA 2425394A1 CA 2425394 CA2425394 CA 2425394 CA 2425394 A CA2425394 A CA 2425394A CA 2425394 A1 CA2425394 A1 CA 2425394A1
- Authority
- CA
- Canada
- Prior art keywords
- wood blocks
- separating mechanism
- supporters
- glued
- frame part
- 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.)
- Abandoned
Links
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
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
Landscapes
- 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)
Abstract
A separating mechanism in a gluing apparatus for the glu-ing of elongated wood blocks (1), said gluing apparatus comprising an adhesive application unit for the application of adhesive at least to one of the surfaces (1a, 1b) to be glued and a pressing mechanism (11, 12) for pressing to-gether the surfaces to be glued, and said separating mechanism comprising a frame part and separating ele-ments for keeping the wood blocks (1) clear of each other before the pressing. The separating mechanism of the invention comprises a vertical frame part (3) provided with supporters (4) functioning as separating elements, ar ranged one above the other at least on one side of the frame part, on which. supporters the wood blocks can be arranged, and which frame part can be moved in vertical and horizontal directives by an operating mechanism, and a stopper arrangement far stopping the wood blocks (1) and arranging them so that the surfaces to be glued are set against each other in order to be pressed together.
Description
SEPARATING MECHANISM IN AN APPARATUS FOR THE GLUING OF
WOOD BLOCKS
The present invention relates to a separating mechanism as de-s fined in the preamble of claim 1 in a gluing apparatus for the gluing of elongated wood blocks, said apparatus comprising a unit for the application of adhesive and a pressing mechanism for pressing the wood blocks together.
For example in gluing apparatus used in the manufacture of glued timber beams, adhesive is applied by means of glue application device to one of ~o the two surfaces to be placed against each other, whereupon the pieces to be glued together are subjected to compression in a pressing device and held un-der compression until the adhesive has dried sufficiently. The drying times are relatively long, and due to the long drying times, relatively large pressing de-vices are needed.
is Patent spec~cation FI 97959 discloses an apparatus for joining wood blocks, such as glued laminated beams and laminated lags, wherein ad-hesive is applied to one surface of the wood blocks and the wood blocks are moved in a horizontal plane and heated from the opposite side by means of an IR radiator placed above them, whereupon the wood blocks are stacked so that 2o the glued surface and the heated surface of adjacent blocks are placed against each other and pressed together by a pressing device. Adhesive is applied only to the block forming the lower surface while the block forming the upper surface is only heated. The wood blocks between these are treated in both ways.
In the apparatus disclosed in the specification in question, planed 25 blocks carried on a longitudinal conveyor through a glue application device are turned by means of a manipulator so that the glued surface faces downwards and then placed on a transverse conveyor, which supports it on nodules to avoid soiling the glue. The block is transferred transversely under the IR
radia tor, whereby the surface of the adhesive layer is heated to a desired tempera 3o ture. After this, the block is turned and placed on a comb conveyor which sup ports l t on c ombs functioning a s s eparating a lements, I eaving a n a it g op b e tween the blocks to prevent re8ction of the adhesive. The blocks carried by the comb conveyor are set one upon the other and, when the stack thus formed has reach the desired size, it is moved to the pressing device either by means of 35 manipulators one at a time or as a bundle.
The adhesive may also consist of a Twin-component glue having a resin component and a hardening component, in which case the resin compo-vent and the hardening component are applied separately, the blocks being joined together in a pressing device by heating, In this case, the resin compo-nent is applied to one of the surfaces and the hardening component to the other, as described e.g. in published patent application FI X7969.
The object of the present invention is to achieve a new type of separating mechanism that allows mare efficient gluing together of wood blocks.
The separating mechanism of the invention comprises a vertical frame part pro-vided with supporters placed one above the other, upon which the wood blocks are arranged one above the other spaced from each other. In addition, the ap-~o paratus comprises a stopper arrangement, by means of which the wood blocks are stopped so that they wilt fall one upon the other before being glued together in a pressing device or before it, and an actuator, by means of which the frame part can be raisedllowered and moved into the pressing device.
(n an embodiment of the invention, the apparatus comprises a is pusher, by means of which the wood blocks are pushed onto the supporters.
in another embodiment of the invention, the pusher and its stopping piece are provided with a projection and a notch corresponding to each other to allow shaped compregnated wood blocks to be produced.
The features of the separating mechanism of the invention are pre-20 sented in detail in the claims below.
The solution of the invention provides many advantages. The sepa-rating mechanism makes it possible to reduce the joining time a s the wood blocks can be placed one above the other on supporters and dropped onto one another relatively quickly. In addition, the apparatus is simple and occupies rela-2s tively little space due to its upright structure. If the stopping arrangement is dis-posed before the pressing device, the dimensions of the pressing device can be reduced because a complete bundle can be fed into the mouth of the pressing device.
In the following, the invention will be described in detail by the aid of 3o an example with reference to the attached drawing, wherein Fig. 1 presents a separating mechanism according to the invention, Fig. z presents a second separating mechanism according to the invention, Fig. 3 presents a third separating mechanism according to the in-35 vention, and Fig. 4 presents an embodiment of the pusher and its stopping de-vice, which makes it possible to produce shaped pieces.
WOOD BLOCKS
The present invention relates to a separating mechanism as de-s fined in the preamble of claim 1 in a gluing apparatus for the gluing of elongated wood blocks, said apparatus comprising a unit for the application of adhesive and a pressing mechanism for pressing the wood blocks together.
For example in gluing apparatus used in the manufacture of glued timber beams, adhesive is applied by means of glue application device to one of ~o the two surfaces to be placed against each other, whereupon the pieces to be glued together are subjected to compression in a pressing device and held un-der compression until the adhesive has dried sufficiently. The drying times are relatively long, and due to the long drying times, relatively large pressing de-vices are needed.
is Patent spec~cation FI 97959 discloses an apparatus for joining wood blocks, such as glued laminated beams and laminated lags, wherein ad-hesive is applied to one surface of the wood blocks and the wood blocks are moved in a horizontal plane and heated from the opposite side by means of an IR radiator placed above them, whereupon the wood blocks are stacked so that 2o the glued surface and the heated surface of adjacent blocks are placed against each other and pressed together by a pressing device. Adhesive is applied only to the block forming the lower surface while the block forming the upper surface is only heated. The wood blocks between these are treated in both ways.
In the apparatus disclosed in the specification in question, planed 25 blocks carried on a longitudinal conveyor through a glue application device are turned by means of a manipulator so that the glued surface faces downwards and then placed on a transverse conveyor, which supports it on nodules to avoid soiling the glue. The block is transferred transversely under the IR
radia tor, whereby the surface of the adhesive layer is heated to a desired tempera 3o ture. After this, the block is turned and placed on a comb conveyor which sup ports l t on c ombs functioning a s s eparating a lements, I eaving a n a it g op b e tween the blocks to prevent re8ction of the adhesive. The blocks carried by the comb conveyor are set one upon the other and, when the stack thus formed has reach the desired size, it is moved to the pressing device either by means of 35 manipulators one at a time or as a bundle.
The adhesive may also consist of a Twin-component glue having a resin component and a hardening component, in which case the resin compo-vent and the hardening component are applied separately, the blocks being joined together in a pressing device by heating, In this case, the resin compo-nent is applied to one of the surfaces and the hardening component to the other, as described e.g. in published patent application FI X7969.
The object of the present invention is to achieve a new type of separating mechanism that allows mare efficient gluing together of wood blocks.
The separating mechanism of the invention comprises a vertical frame part pro-vided with supporters placed one above the other, upon which the wood blocks are arranged one above the other spaced from each other. In addition, the ap-~o paratus comprises a stopper arrangement, by means of which the wood blocks are stopped so that they wilt fall one upon the other before being glued together in a pressing device or before it, and an actuator, by means of which the frame part can be raisedllowered and moved into the pressing device.
(n an embodiment of the invention, the apparatus comprises a is pusher, by means of which the wood blocks are pushed onto the supporters.
in another embodiment of the invention, the pusher and its stopping piece are provided with a projection and a notch corresponding to each other to allow shaped compregnated wood blocks to be produced.
The features of the separating mechanism of the invention are pre-20 sented in detail in the claims below.
The solution of the invention provides many advantages. The sepa-rating mechanism makes it possible to reduce the joining time a s the wood blocks can be placed one above the other on supporters and dropped onto one another relatively quickly. In addition, the apparatus is simple and occupies rela-2s tively little space due to its upright structure. If the stopping arrangement is dis-posed before the pressing device, the dimensions of the pressing device can be reduced because a complete bundle can be fed into the mouth of the pressing device.
In the following, the invention will be described in detail by the aid of 3o an example with reference to the attached drawing, wherein Fig. 1 presents a separating mechanism according to the invention, Fig. z presents a second separating mechanism according to the invention, Fig. 3 presents a third separating mechanism according to the in-35 vention, and Fig. 4 presents an embodiment of the pusher and its stopping de-vice, which makes it possible to produce shaped pieces.
The separating mechanism of the invention is used to produce e.g.
laminated logs from laminae. The planed laminae 1 are conveyed an a longitu-dinal conveyor 2 into an IR radiation heater, where bath joint surtaces 1 a, 1 b of the laminae are heated. After that, the laminae 1 are passed into a glue applica-tor, where adhesive is applied to one 1a of the joint surfaces. Next, the laminae are stacked and pressed together in a vertical pressing device to form a lami-noted log.
Before the pressing device, the laminae 1 are arranged in the sepa rating mechanism, which maintains an air gap between the laminae 1 to prevent ~o premature reaction of the adhesive.
The separating mechanism presented In Fig. 1 comprises a verticai main beam 8 and,~arranged on one side of it, horizontal comb-like supporters placed one above the other, consisting of round bars 4 or equivalent placed at certain distances. The frame 3 can be raisedllowered and moved in a horizontal s5 plane by means of its actuating mechanism.
The apparatus works as follows: Each lamina 1 brought by the lon-gitudinal conveyor 2 to a position alongside the separating mechanism is pushed by means of pushers 5 disposed consecutively and provided with a pushing element G at their ends ante the supporter 4 currently located at the 20 level of the longitudinal conveyor 2. Once a sufficient number of laminae have been thus loaded, the frame 3 with the supporters 4 is moved to a position next to a stopping device (not shown) comprised in the pressing device, which stops the laminae 1 while the frame part continues moving, thus causing the laminae to fall down one upon the other to be pressed together.
z5 In the apparatus presented in Fig. 2, the conveyor Z and the sup-porters 4 are aligned with each other. In this case, to move the laminae from the conveyor onto the supporters, the conveyor, which is disposed before the sepa-rating mechanism, pushes the lamina 1 onto the supporter 4 next to it, where-upon the supporters are raised so that the next lamina will be moved onto the 3o next supporter below, and so on, until a sufficient number of laminae have been arranged on the supporters for the pressing operation.
The a pparatus p resented i n F ig. 3 h as supporters 4 a rranged o n either side of the frame part 3, in which case the separating mechanism can be used even with pressing devices comprising two pressing units placed side by 35 side. In this case, the frame part is moved laterally (arrow) ss necessary, de pending on which one of the pressing units is being loaded with laminae.
laminated logs from laminae. The planed laminae 1 are conveyed an a longitu-dinal conveyor 2 into an IR radiation heater, where bath joint surtaces 1 a, 1 b of the laminae are heated. After that, the laminae 1 are passed into a glue applica-tor, where adhesive is applied to one 1a of the joint surfaces. Next, the laminae are stacked and pressed together in a vertical pressing device to form a lami-noted log.
Before the pressing device, the laminae 1 are arranged in the sepa rating mechanism, which maintains an air gap between the laminae 1 to prevent ~o premature reaction of the adhesive.
The separating mechanism presented In Fig. 1 comprises a verticai main beam 8 and,~arranged on one side of it, horizontal comb-like supporters placed one above the other, consisting of round bars 4 or equivalent placed at certain distances. The frame 3 can be raisedllowered and moved in a horizontal s5 plane by means of its actuating mechanism.
The apparatus works as follows: Each lamina 1 brought by the lon-gitudinal conveyor 2 to a position alongside the separating mechanism is pushed by means of pushers 5 disposed consecutively and provided with a pushing element G at their ends ante the supporter 4 currently located at the 20 level of the longitudinal conveyor 2. Once a sufficient number of laminae have been thus loaded, the frame 3 with the supporters 4 is moved to a position next to a stopping device (not shown) comprised in the pressing device, which stops the laminae 1 while the frame part continues moving, thus causing the laminae to fall down one upon the other to be pressed together.
z5 In the apparatus presented in Fig. 2, the conveyor Z and the sup-porters 4 are aligned with each other. In this case, to move the laminae from the conveyor onto the supporters, the conveyor, which is disposed before the sepa-rating mechanism, pushes the lamina 1 onto the supporter 4 next to it, where-upon the supporters are raised so that the next lamina will be moved onto the 3o next supporter below, and so on, until a sufficient number of laminae have been arranged on the supporters for the pressing operation.
The a pparatus p resented i n F ig. 3 h as supporters 4 a rranged o n either side of the frame part 3, in which case the separating mechanism can be used even with pressing devices comprising two pressing units placed side by 35 side. In this case, the frame part is moved laterally (arrow) ss necessary, de pending on which one of the pressing units is being loaded with laminae.
Fig. 4 presents an embodiment In which the stopping devices con-sist of pushers 5 and their back stops 7. The pushers 5 have a vertical pushing bar 8. The bank stop 7 is likewise a vertical bar. >"lfter the laminae 1 have been stacked one above the other on the supporters ~4, the pushers 5 are moved be-s tween the bars to push the laminae 1 against the back stops 7, the wood blocks being thereby stopped between the pushers 5 and the back stops 7 while the frame part 3 is moved further past the pressing device. After that, the pressure between the pushers 5 and the back stops 7 is reduced, allowing the laminae 1 to fall down one upon the other to form a bundle 13 on a support 12, ready to be to pressed by means of the top ram 10 of the pressing device.
The apparatus presented in Fig. 4 can also be used to create shaped products, such as thresholds ar the Pike. In this case, the push bar 8 of the pusher 5 has a projection 9 at about the middle of It and similarly the back stop 7 has a corresponding notch 11 at the desired poshion, so that the bundle 15 13 piled on the support 12 has a staggering where one of the laminae 1 may be laid deeper than the others to produce a desired shape as illustrated in Fig.
4, The bundles 13 may be piled onto the support 12 either in the pressing device or alternatively before the pressing device. If the bundles 13 are assembled before the pressing device, then the support 12 extends outside the 2o pressing device as seen from the supply direction at least through a distance required by the length of the wood blocks.
It is obvious to the person skilled in the art that the invention is not limited to the embodiment examples described above, but that they may be var-ied within the scope of the claims presented below.
The apparatus presented in Fig. 4 can also be used to create shaped products, such as thresholds ar the Pike. In this case, the push bar 8 of the pusher 5 has a projection 9 at about the middle of It and similarly the back stop 7 has a corresponding notch 11 at the desired poshion, so that the bundle 15 13 piled on the support 12 has a staggering where one of the laminae 1 may be laid deeper than the others to produce a desired shape as illustrated in Fig.
4, The bundles 13 may be piled onto the support 12 either in the pressing device or alternatively before the pressing device. If the bundles 13 are assembled before the pressing device, then the support 12 extends outside the 2o pressing device as seen from the supply direction at least through a distance required by the length of the wood blocks.
It is obvious to the person skilled in the art that the invention is not limited to the embodiment examples described above, but that they may be var-ied within the scope of the claims presented below.
Claims (8)
1. Separating mechanism in a gluing apparatus for the gluing of elongated wood blocks (1), said gluing apparatus comprising an adhesive appli-cation unit for the application of adhesive at least to one of the surfaces (1a, 1b) to be glued and a pressing mechanism (11, 12) for pressing together the sur-faces to be glued, and said separating mechanism comprising a frame part and separating elements for keeping the wood blocks (1) clear of each other before the press-ing, characterized in that the separating mechanism com-prises;
a vertical frame part (3) provided with supporters (4) functioning as separating elements, arranged one above the other at least on one side of the frame part, on which supporters the wood blocks can be arranged, and which frame part can be moved in vertical and horizontal directions by an operating mechanism, and a stopper arrangement for stopping the wood blocks (1) and arrang-ing them so that the surfaces to be glued are set against each other in order to be pressed together.
a vertical frame part (3) provided with supporters (4) functioning as separating elements, arranged one above the other at least on one side of the frame part, on which supporters the wood blocks can be arranged, and which frame part can be moved in vertical and horizontal directions by an operating mechanism, and a stopper arrangement for stopping the wood blocks (1) and arrang-ing them so that the surfaces to be glued are set against each other in order to be pressed together.
2. Separating mechanism according to claim 1 in a gluing appara-tus provided with a conveyor (2) for conveying the wood blocks, charac-terized in that the mechanism comprises a pusher system (5) for push-ing wood blocks from the conveyor onto the supporters.
3. Mechanism according to claim 1 provided with a conveyor (2) for conveying the wood blocks, characterized in that the conveyor and the supporters are placed next to each other when wood blocks are being ar-ranged from the conveyor onto the supporters, allowing the wood blocks to be transferred to the supporters by means of the conveyor.
4. Separating mechanism according to claim 1, character-ized in that supporters (4) are arranged on either side of the frame part,
5. Separating mechanism according to claim 2, character-ized in that, in the stopper arrangement, each pusher part (5) comprises a vertical bar-like pusher element (8) and that a back stop (7) is provided in con-nection with each pusher, against which back stop the pusher presses the wood blocks to stop them and to arrange them so that the surfaces to be glued are set against each other.
6 6. Separating mechanism according to claim 6, character-ized in that, to allow shaped products to be glued, the pusher part (8) has at least one projection/notch (9) and its back stop at least one corresponding notch/projection (11).
7. Separating mechanism according to claim 1, character-ized in that the separating mechanism comprises a planar support (12), on which the wood blocks are arranged as a bundle (13) for the pressing operation.
8. Separating mechanism according to claim 7, character-ized in that the planar support (12) is fitted at least partly outside the press-ing mechanism as seen from the supply direction so that the wood blocks are arranged as a bundle (13) for the pressing operation before the pressing mechanism.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20020725A FI116205B (en) | 2002-04-15 | 2002-04-15 | Separation device in a gluing plant for wood pieces |
| FI20020725 | 2002-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2425394A1 true CA2425394A1 (en) | 2003-10-15 |
Family
ID=8563769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2425394 Abandoned CA2425394A1 (en) | 2002-04-15 | 2003-04-14 | Separating mechanism in an apparatus for the gluing of wood blocks |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1354678A3 (en) |
| CA (1) | CA2425394A1 (en) |
| FI (1) | FI116205B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2426604T3 (en) * | 2010-09-14 | 2013-10-24 | Brandt Kantentechnik Gmbh | Kinematic dosing system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1982004A (en) * | 1930-02-17 | 1934-11-27 | Chrysler Corp | Gluing machine |
| DE4135727A1 (en) * | 1991-05-03 | 1992-11-05 | Rueckle Carl Maschinenbau | Collecting together individual wooden elements from packets - by subjecting them to various stages of sepn. and gluing of edges and pressing together to form panels of parquet flooring |
| FI97959C (en) * | 1995-06-20 | 1997-03-25 | Jaerme Oy | Method and apparatus for joining at least two pieces of wood into one piece |
-
2002
- 2002-04-15 FI FI20020725A patent/FI116205B/en not_active IP Right Cessation
-
2003
- 2003-03-25 EP EP03075879A patent/EP1354678A3/en not_active Withdrawn
- 2003-04-14 CA CA 2425394 patent/CA2425394A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| FI116205B (en) | 2005-10-14 |
| EP1354678A2 (en) | 2003-10-22 |
| FI20020725A (en) | 2003-10-16 |
| FI20020725A0 (en) | 2002-04-15 |
| EP1354678A3 (en) | 2007-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |