CA2278899A1 - Process and plant for the manufacture of endless veneer laminates - Google Patents
Process and plant for the manufacture of endless veneer laminates Download PDFInfo
- Publication number
- CA2278899A1 CA2278899A1 CA002278899A CA2278899A CA2278899A1 CA 2278899 A1 CA2278899 A1 CA 2278899A1 CA 002278899 A CA002278899 A CA 002278899A CA 2278899 A CA2278899 A CA 2278899A CA 2278899 A1 CA2278899 A1 CA 2278899A1
- Authority
- CA
- Canada
- Prior art keywords
- veneer
- strand
- panels
- press
- width
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 6
- 238000007688 edging Methods 0.000 claims abstract description 6
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
- B27D3/04—Veneer presses; Press plates; Plywood presses with endless arrangement of moving press plates, belts, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
- B32B38/105—Removing layers, or parts of layers, mechanically or chemically on edges
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention concerns a process and a plant for the manufacture of endless veneer laminates from a strand of veneer panels made from several layers of veneer panels layered one above the other and one behind the other by means of gluing and pressing in a heated, continuously operating press, and whereby optionally the strand of veneer panels passes through a pre-press with a preheating device before entering the continuously operating press.
The invention consists in that several veneer panels of manufacturing width are brought together, each overlapping the other, and are stitched on the connecting edges into over-width veneer panels, following which several of these over-width veneer panels are assembled into a veneer panel strand in layers one above the other and one behind the other and introduced into the heating press and glued and pressed into a veneer laminate strand. In the plant, for the formation of over-width veneer panels (34), an interleaving device with stitching machine (32) is located upstream of the veneer panel laying device, while downstream of the continually operating press (18) are located an appropriate number of longitudinal edging and centre cut saws.
The invention consists in that several veneer panels of manufacturing width are brought together, each overlapping the other, and are stitched on the connecting edges into over-width veneer panels, following which several of these over-width veneer panels are assembled into a veneer panel strand in layers one above the other and one behind the other and introduced into the heating press and glued and pressed into a veneer laminate strand. In the plant, for the formation of over-width veneer panels (34), an interleaving device with stitching machine (32) is located upstream of the veneer panel laying device, while downstream of the continually operating press (18) are located an appropriate number of longitudinal edging and centre cut saws.
Description
Process and Plant for the Manufacture of Endless Veneer Laminates The invention relates to a process for the manufacture of endless veneer laminates from a strand of veneer panels made from several layers of veneer panels layered one above the other and one behind the other by means of gluing and pressing in a heated, continuously operating press, whereby the strand of veneer panels passes through a prepress with a preheating device before entering the press, and to a plant for carrying out the process.
German Patent No. DE-OS 196 27 024 discloses a process the object of which is to automatically bring lamination assemblies of large-area veneer panels (or sheets) continuously together into a sufficient mechanical interlinking so that in the subsequent continuous pressing operation these veneer panel transitional stages demonstrate, in the finished veneer laminate, almost the same physical strength characteristics as the traditional veneer laminates built up from veneer laminate assemblies on the sandwich principle. High-quality veneer laminate panels can be manufactured using this process if all production and manufacturing parameters are optimally harmonized with each other and the plant operated accordingly. The disadvantage is that only relatively narrow veneer panels of approximately 1.2 m (4 feet) width can be produced and thus the output of completed LVL panels and veneer panels per plant is small.
German Patent No. DE-OS 196 27 024 discloses a process the object of which is to automatically bring lamination assemblies of large-area veneer panels (or sheets) continuously together into a sufficient mechanical interlinking so that in the subsequent continuous pressing operation these veneer panel transitional stages demonstrate, in the finished veneer laminate, almost the same physical strength characteristics as the traditional veneer laminates built up from veneer laminate assemblies on the sandwich principle. High-quality veneer laminate panels can be manufactured using this process if all production and manufacturing parameters are optimally harmonized with each other and the plant operated accordingly. The disadvantage is that only relatively narrow veneer panels of approximately 1.2 m (4 feet) width can be produced and thus the output of completed LVL panels and veneer panels per plant is small.
The object of the invention is to provide a process by which a higher throughput can be achieved in the manufacture of veneer laminates and to devise a plant for the execution of the process according to the invention.
In accordance with one aspect of the present invention there is provided a process for manufacturing endless veneer laminates from a veneer panel strand of several layers of veneer panels joined one above the other and one behind the other by means of gluing and pressing in a continuously operating press, wherein several veneer panels of manufacturing width are brought together, each overlapping the other, and are stitched on the connecting edges into over-width veneer panels, following which several of these over-width veneer panels are assembled into a veneer panel strand in layers one above the other and one behind the other and introduced into a heating press and glued and pressed into a veneer laminate strand.
The plant for the execution of the process according to the invention consists of a glue application machine for the veneer panels, conveyers, a veneer panel laying device and a continuously operating press, characterized in that for the formation of overwidth veneer panels an interleaving device with sewing machine is located upstream of the veneer panel laying device, while downstream of the continually operating press an appropriate number of longitudinal edging and centre cut saws are located.
The joining together by stitching of the overlapped 1.2 m (4 feet) wide single veneer panels lying side by side and above and behind each other into an overwide veneer panel strand provides the advantage that after pressing immediately downstream of the continuously operating press the 2x4 or 3x4 foot wide veneer laminates are once more separated in such a way that the central separation cut strip = R is significantly smaller in comparison to the external longitudinal edging saw strip = S. In practice it turns out to be about a quarter of S, that is, R is approximately s~ S.
From this the following advantage is derived:
With an endlessly produced veneer laminate 2x4 feet wide with a central seam for 8 foot width, which after pressing is separated through the central cut R, waste material of only VTm will be produced:
VTm - ( (2.S) + (1.R) ) - 2~ S.
This advantage will increase further in the case of a 3x4 foot wide veneer laminate panel with two veneer central seams.
The applicable formula then reads:
VT,n - ( (2.S) + (1.R) J - 23z S.
If it is assumed that in plywood and LVL veneering operations veneer panels of 4 feet can be milled or manufactured, then by laying the edges over one another for a seam, 2x4 or even 3x4 foot wide veneer panel strands can be manufactured in an endless strand. That means that a continuously operating press for veneer laminates for widths of 8 or 12 feet can come into operation, in comparison with the current state of the art of LVL presses with 4-foot bed width. This produces for the same press factor (pass-through speed and throughput rate) a twofold to threefold increase in output whereby a greater width in terms of the entire plant entails lower production costs than the operation of two or three single unit press lines alongside each other. As well, the product is more economical to produce owing to the reduced wastage while the installation costs for a doubled or tripled production output can be considerably reduced in comparison to two or three 4-foot wide installations.
The cited advantages of the process according to the invention also come to fruition if a single- or multi-stage press is used in the plant instead of the continuously operating press.
Further advantageous measures and embodiments of the object of the invention become apparent from the following description and drawings.
Shown are:
Figure 1 a side view of the plant according to the invention for the performance of the procedure according to the invention;
In accordance with one aspect of the present invention there is provided a process for manufacturing endless veneer laminates from a veneer panel strand of several layers of veneer panels joined one above the other and one behind the other by means of gluing and pressing in a continuously operating press, wherein several veneer panels of manufacturing width are brought together, each overlapping the other, and are stitched on the connecting edges into over-width veneer panels, following which several of these over-width veneer panels are assembled into a veneer panel strand in layers one above the other and one behind the other and introduced into a heating press and glued and pressed into a veneer laminate strand.
The plant for the execution of the process according to the invention consists of a glue application machine for the veneer panels, conveyers, a veneer panel laying device and a continuously operating press, characterized in that for the formation of overwidth veneer panels an interleaving device with sewing machine is located upstream of the veneer panel laying device, while downstream of the continually operating press an appropriate number of longitudinal edging and centre cut saws are located.
The joining together by stitching of the overlapped 1.2 m (4 feet) wide single veneer panels lying side by side and above and behind each other into an overwide veneer panel strand provides the advantage that after pressing immediately downstream of the continuously operating press the 2x4 or 3x4 foot wide veneer laminates are once more separated in such a way that the central separation cut strip = R is significantly smaller in comparison to the external longitudinal edging saw strip = S. In practice it turns out to be about a quarter of S, that is, R is approximately s~ S.
From this the following advantage is derived:
With an endlessly produced veneer laminate 2x4 feet wide with a central seam for 8 foot width, which after pressing is separated through the central cut R, waste material of only VTm will be produced:
VTm - ( (2.S) + (1.R) ) - 2~ S.
This advantage will increase further in the case of a 3x4 foot wide veneer laminate panel with two veneer central seams.
The applicable formula then reads:
VT,n - ( (2.S) + (1.R) J - 23z S.
If it is assumed that in plywood and LVL veneering operations veneer panels of 4 feet can be milled or manufactured, then by laying the edges over one another for a seam, 2x4 or even 3x4 foot wide veneer panel strands can be manufactured in an endless strand. That means that a continuously operating press for veneer laminates for widths of 8 or 12 feet can come into operation, in comparison with the current state of the art of LVL presses with 4-foot bed width. This produces for the same press factor (pass-through speed and throughput rate) a twofold to threefold increase in output whereby a greater width in terms of the entire plant entails lower production costs than the operation of two or three single unit press lines alongside each other. As well, the product is more economical to produce owing to the reduced wastage while the installation costs for a doubled or tripled production output can be considerably reduced in comparison to two or three 4-foot wide installations.
The cited advantages of the process according to the invention also come to fruition if a single- or multi-stage press is used in the plant instead of the continuously operating press.
Further advantageous measures and embodiments of the object of the invention become apparent from the following description and drawings.
Shown are:
Figure 1 a side view of the plant according to the invention for the performance of the procedure according to the invention;
Figure 2 shows the veneer assembly composition with veneer panel length (H), veneer panel projection (L) and veneer panel overlap (y);
Figure 3 an overwidth veneer panel strand with a stiched seam;
Figure 4 a section G-G as per Figure 3; and Figure 5 an overwidth veneer panel strand with two stiched seams.
Figure 1 shows a complete overview and perspective representation of the plant according to the invention for carrying out the process according to the invention.
As seen from the longitudinal arrangement of the plant according to Figure 1, the sections of the plant indicate the following:
A Veneer panel glue application device, B Veneer panel sticking device, C Veneer panel location and interlinking device, D Prepress with pre-heating device, E Continuously operating press, and F Veneer laminate (finished product).
Plant Section A:
Veneer panels (1) formed from veneer sheets with veneer thicknesses typically of 1 mm to about 4.6 mm and surface dimensions of typically 4'x 8' or 3'x 6' feet (about 1.2 x 2.4 m) are run at high speed from the veneer panel stacks (not shown) through the glue application machine (2) and fed to transfer belt (3). Only the upper side of the veneer panels (1) is glued, permitting good transportability on the belts and roller paths through the entire plant section (B) to and including plant section (E). According to Figure 2, only the topmost veneer panel (m) of a veneer assembly (9, 10 or 11) is not glued.
Adhesion is formed in each case by the glueing of the veneer panel (n) lying underneath. The layer structure of a strand is numerically registered in its passage through line sections (A, B and C,) the veneer panels (1) are correspondingly counted in the feed-in to the glue application device.
Plant Section B:
From Figures 3 and 4 it can be seen that before the assembly of a veneer panel strand (29) in the veneer panel laying device (33) and introduction into the continuously-operating press (18), veneer panels (1 and 1'), each four feet wide (A and B) are stitched together with a stitching machine with a stitched seam (30) into an over-width veneer panel (34) and fed over a feed belt (6) into the veneer panel laying device (33). Figure 5 shows by way of illustration the stitching of three veneer panels (1, 1' and 1") into an over-width veneer panel (34). Figure 4 shows further the advantageous central separation cut strip (R) in relation to the wider edging cut strip (S) after pressing in the continuously operating press (19), with the longitudinal edges of the veneer laminate panel (31) equalized and the stitching seam (30) removed.
_7_ Plant Section C:
The loading, layering and joining of the veneer panels (1) in the veneer panel laying device (33) is carried out as described in German Patent No. DE-OS 196 27 024.
Figure 2 shows the interlinked and interleaved building up of the veneer panels (1) into several veneer assemblies (9, 10 and 11) to a veneer panel strand (28), whereby the individual veneer panels (1) after being mechanically interleaved by veneer overlap (y) are glued to the corresponding veneer panels (m, n, o, p) of a veneer assembly (9, 10 or 11). In the process, the constant operating speed and the same geometrical positions of veneer panel length (H), veneer panel projection (L) and veneer panel overlap (y), constantly produce the same veneer assembly situation, that is the consolidation of veneer panels (1) with each other into an assembled strand.
Plant Section D:
This section with pre-press and pre-heating device is optional. The continuously formed veneer panel strand (28) is taken up by roller path (7) and fed to the intake roller table and the pre-press with pre-heating (15). This pre-press (15) consists of intake roller table (14) with an integrated pre-heating, which can typically be generated by UHF or a microwave field or by convective or radiant heat.
Plant Section E:
This section relates to any type of continuously operating press (18) for gluing and for pressing the veneer panel strand (28). The upper and lower steel belts (27) are _g_ supported against the heated compression/heating plates, possibly by means of roller rods.
Plant Section F:
After leaving the continuously operating press (18), the continuously and endlessly emerging veneer laminate (31) is fed to a finishing station, that is, the endless laminate (31) is cut into construction elements, beams and support elements for prefabricated houses.
Figure 3 an overwidth veneer panel strand with a stiched seam;
Figure 4 a section G-G as per Figure 3; and Figure 5 an overwidth veneer panel strand with two stiched seams.
Figure 1 shows a complete overview and perspective representation of the plant according to the invention for carrying out the process according to the invention.
As seen from the longitudinal arrangement of the plant according to Figure 1, the sections of the plant indicate the following:
A Veneer panel glue application device, B Veneer panel sticking device, C Veneer panel location and interlinking device, D Prepress with pre-heating device, E Continuously operating press, and F Veneer laminate (finished product).
Plant Section A:
Veneer panels (1) formed from veneer sheets with veneer thicknesses typically of 1 mm to about 4.6 mm and surface dimensions of typically 4'x 8' or 3'x 6' feet (about 1.2 x 2.4 m) are run at high speed from the veneer panel stacks (not shown) through the glue application machine (2) and fed to transfer belt (3). Only the upper side of the veneer panels (1) is glued, permitting good transportability on the belts and roller paths through the entire plant section (B) to and including plant section (E). According to Figure 2, only the topmost veneer panel (m) of a veneer assembly (9, 10 or 11) is not glued.
Adhesion is formed in each case by the glueing of the veneer panel (n) lying underneath. The layer structure of a strand is numerically registered in its passage through line sections (A, B and C,) the veneer panels (1) are correspondingly counted in the feed-in to the glue application device.
Plant Section B:
From Figures 3 and 4 it can be seen that before the assembly of a veneer panel strand (29) in the veneer panel laying device (33) and introduction into the continuously-operating press (18), veneer panels (1 and 1'), each four feet wide (A and B) are stitched together with a stitching machine with a stitched seam (30) into an over-width veneer panel (34) and fed over a feed belt (6) into the veneer panel laying device (33). Figure 5 shows by way of illustration the stitching of three veneer panels (1, 1' and 1") into an over-width veneer panel (34). Figure 4 shows further the advantageous central separation cut strip (R) in relation to the wider edging cut strip (S) after pressing in the continuously operating press (19), with the longitudinal edges of the veneer laminate panel (31) equalized and the stitching seam (30) removed.
_7_ Plant Section C:
The loading, layering and joining of the veneer panels (1) in the veneer panel laying device (33) is carried out as described in German Patent No. DE-OS 196 27 024.
Figure 2 shows the interlinked and interleaved building up of the veneer panels (1) into several veneer assemblies (9, 10 and 11) to a veneer panel strand (28), whereby the individual veneer panels (1) after being mechanically interleaved by veneer overlap (y) are glued to the corresponding veneer panels (m, n, o, p) of a veneer assembly (9, 10 or 11). In the process, the constant operating speed and the same geometrical positions of veneer panel length (H), veneer panel projection (L) and veneer panel overlap (y), constantly produce the same veneer assembly situation, that is the consolidation of veneer panels (1) with each other into an assembled strand.
Plant Section D:
This section with pre-press and pre-heating device is optional. The continuously formed veneer panel strand (28) is taken up by roller path (7) and fed to the intake roller table and the pre-press with pre-heating (15). This pre-press (15) consists of intake roller table (14) with an integrated pre-heating, which can typically be generated by UHF or a microwave field or by convective or radiant heat.
Plant Section E:
This section relates to any type of continuously operating press (18) for gluing and for pressing the veneer panel strand (28). The upper and lower steel belts (27) are _g_ supported against the heated compression/heating plates, possibly by means of roller rods.
Plant Section F:
After leaving the continuously operating press (18), the continuously and endlessly emerging veneer laminate (31) is fed to a finishing station, that is, the endless laminate (31) is cut into construction elements, beams and support elements for prefabricated houses.
Claims (7)
1. A process for manufacturing endless veneer laminates from a veneer panel strand of several layers of veneer panels joined one above the other and one behind the other by means of gluing and pressing in a continuously operating press, wherein several veneer panels of manufacturing width are brought together, each overlapping the other, and are stitched on the connecting edges into overwidth veneer panels, following which several of these over-width veneer panels are assembled into a veneer panel strand in layers one above the other and one behind the other and introduced into a heating press and glued and pressed into a veneer laminate strand.
2. A process according to Claim 1, wherein the veneer panels strand, before its entry into the continously operating press, runs through a pre-press, with a preheating device.
3. A process according to Claim 1 or 2, wherein the veneer laminate strand is divided after pressing into a number of endless veneer laminate strands by one or more central separation cut strips "R" and longitudinal edging saw strips "S".
4. A process according to Claim 1, 2 or 3, characterized in that the manufacturing width veneer panels have a width of four feet.
5. A plant for carrying out the process according to any one of Claims 1 to 4, comprising a glue application machine, roller belts, a veneer panel laying device for laying down an endless veneer panel strand and a continuously operating press, wherein an interleaving device with stitching machine is located upstream of the veneer panel laying device and an appropriate number of longitudinal edging saws and centre-cut saws downstream of the continuously operating press, for the formation of over-width veneer panels.
6. A plant according to Claim 5, further comprising a pre-press with pre-heating device.
7. A plant according to Claim 5 or 6, wherein a lead-in roller table is provided upstream of the continuously operating press.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19835933.0 | 1998-08-08 | ||
| DE19835933.0A DE19835933B4 (en) | 1998-08-08 | 1998-08-08 | Method and plant for the production of endless veneer layer boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2278899A1 true CA2278899A1 (en) | 2000-02-08 |
Family
ID=7876898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002278899A Abandoned CA2278899A1 (en) | 1998-08-08 | 1999-07-27 | Process and plant for the manufacture of endless veneer laminates |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA2278899A1 (en) |
| DE (1) | DE19835933B4 (en) |
| FI (1) | FI122688B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129759A (en) * | 2018-07-16 | 2019-01-04 | 漳州鑫华成机械制造有限公司 | A kind of Full-automatic glue plywood hot pressing machine production line free of discontinuities |
| CN112643818A (en) * | 2020-12-30 | 2021-04-13 | 佛山市纪元高频设备有限公司 | High-frequency high-efficiency splicing machine |
| CN112875241A (en) * | 2021-01-12 | 2021-06-01 | 广东鑫光智能系统有限公司 | Plate blanking device and plate blanking method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19952270B4 (en) * | 1998-08-08 | 2015-04-30 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method and plant for the production of endless veneer layer boards |
| IT1311862B1 (en) * | 1999-09-22 | 2002-03-19 | C B T S R L | PROCEDURE FOR OBTAINING A CONTINUOUS WOOD SHEET IN COIL |
| FI123736B (en) * | 2011-05-04 | 2013-10-15 | Raute Oyj | Puutuotepuristinlaitteisto |
| DE102019113686B4 (en) * | 2019-02-22 | 2024-04-25 | Wooden-3D-Tubing UG (haftungsbeschränkt) | Method and device for producing a wooden profile |
| CN114030040A (en) * | 2021-12-09 | 2022-02-11 | 湖南红崀山木业科技有限公司 | Disposable plywood multilayer processing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19627024B4 (en) * | 1996-07-04 | 2007-08-02 | Dieffenbacher Gmbh + Co. Kg | Method and plant for the continuous folding and gluing of veneer sheets to veneer layer boards |
-
1998
- 1998-08-08 DE DE19835933.0A patent/DE19835933B4/en not_active Expired - Fee Related
-
1999
- 1999-07-27 CA CA002278899A patent/CA2278899A1/en not_active Abandoned
- 1999-08-06 FI FI991680A patent/FI122688B/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129759A (en) * | 2018-07-16 | 2019-01-04 | 漳州鑫华成机械制造有限公司 | A kind of Full-automatic glue plywood hot pressing machine production line free of discontinuities |
| CN109129759B (en) * | 2018-07-16 | 2021-04-13 | 漳州鑫华成机械制造有限公司 | Full-automatic plywood hot press production line of incessant |
| CN112643818A (en) * | 2020-12-30 | 2021-04-13 | 佛山市纪元高频设备有限公司 | High-frequency high-efficiency splicing machine |
| CN112875241A (en) * | 2021-01-12 | 2021-06-01 | 广东鑫光智能系统有限公司 | Plate blanking device and plate blanking method |
Also Published As
| Publication number | Publication date |
|---|---|
| FI122688B (en) | 2012-05-31 |
| DE19835933B4 (en) | 2014-01-23 |
| DE19835933A1 (en) | 2000-02-10 |
| FI19991680A (en) | 2000-02-08 |
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