EP0822042A2 - Process and machine for manufacturing shaped profiles in curved plywood for covering columns and the like - Google Patents
Process and machine for manufacturing shaped profiles in curved plywood for covering columns and the like Download PDFInfo
- Publication number
- EP0822042A2 EP0822042A2 EP97202352A EP97202352A EP0822042A2 EP 0822042 A2 EP0822042 A2 EP 0822042A2 EP 97202352 A EP97202352 A EP 97202352A EP 97202352 A EP97202352 A EP 97202352A EP 0822042 A2 EP0822042 A2 EP 0822042A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- sheets
- machine
- shaped profiles
- curved
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011120 plywood Substances 0.000 title claims abstract description 11
- 238000005452 bending Methods 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 claims abstract description 8
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
-
- 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
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
- B27D1/083—Presses specially designed for making the manufacture of shaped plywood articles
Definitions
- the present invention relates to a process and a machine for manufacturing shaped profiles in curved plywood for covering columns and alike.
- the traditional process of manufacturing of shaped profiles in curved plywood for covering columns and alike provides for the overlay of several flat wooden sheets with interposed adhesive, that are made adhere to each other by means of a heated press of substantially semicircular section, which compresses said sheets one against the other determining the bending with a curvature radius correspondent to that of the press itself.
- object of the present invention has been to provide a process and a machine specifically fit for manufacturing shaped profiles of considerable length in curved plywood.
- a process for manufacturing shaped profiles in curved plywood comprising overlay of several flat wooden sheets with interposed adhesive and application of pressure over said overlaid sheets by means of a shaped press at high temperature for the mutual adhesion of the sheets themselves and their bending with a desired curvature radius, characterized in that said pressure is obtained by inflating an inflatable flexible sack which substains said flat sheets beneath said press.
- a machine comprising a heated press of curved section correspondent to that desired for the profile to manufacture and means for providing a pressure engagement between said press and a set of wooden flat sheets overlaid together with interposed adhesive to determine the adhesion of the sheets themselves and their bending up to a desired shape, characterized in that said means for providing a pressure engagement comprise an inflatable flexible sack which substain said flat sheets beneath said press.
- Fig. 1 is shown schematically in perspective view a set of wooden flat sheets 1, between a layer of adhesive 2 working at high temperature is interposed.
- the set of fig. 1 is inserted in a machine comprising a shaped press 3, by way of example of semicircular section, heated at high temperature.
- Beneath press 3 as shown in Fig. 2, an inflatable flexible sack 5, initially deflated, which supports the set of wooden overlaid sheets 1 of Fig. 1, is placed inside an envelope 4.
- the edge bending can naturally be modified by varying the front shape of press 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Forests & Forestry (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Rod-Shaped Construction Members (AREA)
- Laminated Bodies (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
Claims (4)
- Process for manufacturing shaped profiles in curved plywood, comprising overlay of several flat wooden sheets (1) with interposed adhesive (2) and application of pressure against said overlaid sheets (1) by means of a shaped press (3) at high temperature for the mutual adhesion of the sheets themselves and their bending with a desired curvature radius, characterized in that said the press (3) is obtained by inflating an inflatable flexible sack (5) which substains said flat sheets (1) beneath said press (3).
- Process according to claim 1, characterized in that said press (3) has a substantially semicircular section.
- Machine for manufacturing shaped profiles in curved plywood, comprising a heated press (3) of curved section correspondent to that desired for the profile to manufacture and means (5) for providing a pressure engagement between said press (3) and a set of wooden flat sheets (1) overlaid together with interposed adhesive (2) to determine the adhesion of the sheets themselves and their bending up to a desired shape, characterized in that said means (5) for providing a pressure engagement comprise an inflatable flexible sack (5) which substains said flat sheets (1) beneath said press (3).
- Machine according to claim 3, characterized in that said press (3) has a substantially semicircular section.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI961643 | 1996-07-31 | ||
IT96MI001643A IT1283376B1 (en) | 1996-07-31 | 1996-07-31 | PROCEDURE AND MACHINE FOR THE MANUFACTURE OF CURVED PLYWOOD PROFILES FOR THE CLADDING OF COLUMNS AND SIMILAR. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0822042A2 true EP0822042A2 (en) | 1998-02-04 |
EP0822042A3 EP0822042A3 (en) | 1999-03-24 |
Family
ID=11374723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97202352A Withdrawn EP0822042A3 (en) | 1996-07-31 | 1997-07-25 | Process and machine for manufacturing shaped profiles in curved plywood for covering columns and the like |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0822042A3 (en) |
IT (1) | IT1283376B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004035758B4 (en) * | 2004-07-23 | 2009-08-27 | Quin Gmbh | Method and device for producing a decorative preform |
CN106193297A (en) * | 2016-07-11 | 2016-12-07 | 南京林业大学 | A kind of c-type wooden structures material for building and preparation method thereof |
CN108068382A (en) * | 2016-11-14 | 2018-05-25 | 江西昌河航空工业有限公司 | A kind of frock and adhesive technology for being glued V-type part |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR769094A (en) * | 1934-02-03 | 1934-08-18 | Veneer press for rounded surfaces | |
FR873210A (en) * | 1940-04-22 | 1942-07-02 | Fieseler Gerhard Werke Gmbh | Gluing press for curved parts, in particular for parts of aircraft or the like |
US2363933A (en) * | 1940-12-12 | 1944-11-28 | Langley Aviat Corp | Portable veneer press |
US2385544A (en) * | 1943-05-19 | 1945-09-25 | Salisbury Leonard Byron | Molding device |
US2386578A (en) * | 1941-08-14 | 1945-10-09 | Vidal Corp | Apparatus for forming laminated molded structures |
US2401299A (en) * | 1942-10-03 | 1946-06-04 | Universal Moulded Products Cor | Molding and gluing press |
US2409393A (en) * | 1943-07-29 | 1946-10-15 | Schaffer Leslie Laszlo | Fluid press |
FR1192718A (en) * | 1958-03-06 | 1959-10-28 | Veneer press | |
EP0568935A1 (en) * | 1992-05-05 | 1993-11-10 | ORMAMACCHINE S.r.L. | Veneering machine |
-
1996
- 1996-07-31 IT IT96MI001643A patent/IT1283376B1/en active IP Right Grant
-
1997
- 1997-07-25 EP EP97202352A patent/EP0822042A3/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR769094A (en) * | 1934-02-03 | 1934-08-18 | Veneer press for rounded surfaces | |
FR873210A (en) * | 1940-04-22 | 1942-07-02 | Fieseler Gerhard Werke Gmbh | Gluing press for curved parts, in particular for parts of aircraft or the like |
US2363933A (en) * | 1940-12-12 | 1944-11-28 | Langley Aviat Corp | Portable veneer press |
US2386578A (en) * | 1941-08-14 | 1945-10-09 | Vidal Corp | Apparatus for forming laminated molded structures |
US2401299A (en) * | 1942-10-03 | 1946-06-04 | Universal Moulded Products Cor | Molding and gluing press |
US2385544A (en) * | 1943-05-19 | 1945-09-25 | Salisbury Leonard Byron | Molding device |
US2409393A (en) * | 1943-07-29 | 1946-10-15 | Schaffer Leslie Laszlo | Fluid press |
FR1192718A (en) * | 1958-03-06 | 1959-10-28 | Veneer press | |
EP0568935A1 (en) * | 1992-05-05 | 1993-11-10 | ORMAMACCHINE S.r.L. | Veneering machine |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004035758B4 (en) * | 2004-07-23 | 2009-08-27 | Quin Gmbh | Method and device for producing a decorative preform |
DE102004035758C5 (en) * | 2004-07-23 | 2011-08-18 | Quin GmbH, 71277 | Method and device for producing a decorative preform |
CN106193297A (en) * | 2016-07-11 | 2016-12-07 | 南京林业大学 | A kind of c-type wooden structures material for building and preparation method thereof |
CN106193297B (en) * | 2016-07-11 | 2019-04-02 | 南京林业大学 | A kind of c-type wooden structures material for building and preparation method thereof |
CN108068382A (en) * | 2016-11-14 | 2018-05-25 | 江西昌河航空工业有限公司 | A kind of frock and adhesive technology for being glued V-type part |
Also Published As
Publication number | Publication date |
---|---|
EP0822042A3 (en) | 1999-03-24 |
IT1283376B1 (en) | 1998-04-17 |
ITMI961643A0 (en) | 1996-07-31 |
ITMI961643A1 (en) | 1998-01-31 |
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AKX | Designation fees paid |
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17Q | First examination report despatched |
Effective date: 20010917 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20020328 |