CA2988159A1 - Multi-stage corrugator for composite wood panel cores - Google Patents
Multi-stage corrugator for composite wood panel cores Download PDFInfo
- Publication number
- CA2988159A1 CA2988159A1 CA2988159A CA2988159A CA2988159A1 CA 2988159 A1 CA2988159 A1 CA 2988159A1 CA 2988159 A CA2988159 A CA 2988159A CA 2988159 A CA2988159 A CA 2988159A CA 2988159 A1 CA2988159 A1 CA 2988159A1
- Authority
- CA
- Canada
- Prior art keywords
- stage
- corrugator
- stock
- nodes
- former
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- 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
- B27D1/02—Hot tables for warming veneers
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
A multi-stage corrugator for corrugating a thin, flat, pliable cold rolled wood laminae stock to form a half honeycomb corrugated web that includes at least one pre-former stage that bends the stock at spaced intervals to an angle of less than ~60°, and a final former stage that further bends the stock at each of the spaced intervals to a final angle of about ~60°. The final former stage includes means for applying heat and pressure to set the web at the final angle.
Description
The Embodiments of the Invention in which an Exclusive Property or Privilege Is Claimed are Defined As:
1. A multi-stage corrugator for corrugating a thin, flat, pliable cold rolled wood laminae stock to form a half honeycomb corrugated web, cornprising:
at least one pre-former stage that accepts the flat wood laminae stock, each of the at least one pre-former stages having a plurality of opposed, intermeshing nodes that respectively transversely bend the stock at spaced intervals to form a pre-formed web having an intermediate half honeycomb shape with respective bends of less than 600 at the respective spaced intervals; and a final former stage that accepts the pre-formed web, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the preformed stock at each of the spaced intervals into the half honeycomb corrugated web.
1. A multi-stage corrugator for corrugating a thin, flat, pliable cold rolled wood laminae stock to form a half honeycomb corrugated web, cornprising:
at least one pre-former stage that accepts the flat wood laminae stock, each of the at least one pre-former stages having a plurality of opposed, intermeshing nodes that respectively transversely bend the stock at spaced intervals to form a pre-formed web having an intermediate half honeycomb shape with respective bends of less than 600 at the respective spaced intervals; and a final former stage that accepts the pre-formed web, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the preformed stock at each of the spaced intervals into the half honeycomb corrugated web.
2. A multi-stage corrugator as claimed in claim 1, comprising:
a first pre-former stage that accepts the flat wood laminae stock and outputs a first intermediate half honeycomb stock, the first pre-former stage having a plurality of opposed, intermeshing nodes that respectively transversely bend the flat stock at respective first angles on spaced intervals to form the first intermediate half honeycomb stock;
a second pre-former stage that accepts the first intermediate half honeycomb stock and outputs a second intermediate half honeycomb stock, the second pre-former stage having a plurality of opposed, intermeshing nodes that respectively further bend the first intermediate half honeycomb stock at each of the spaced intervals to form the second intermediate half honeycomb stock having respective second angles greater than the first angles; and a final former stage that accepts the second intermediate half honeycomb stock, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the second intermediate half honeycomb stock at each of the spaced intervals into the half honeycomb corrugated web.
a first pre-former stage that accepts the flat wood laminae stock and outputs a first intermediate half honeycomb stock, the first pre-former stage having a plurality of opposed, intermeshing nodes that respectively transversely bend the flat stock at respective first angles on spaced intervals to form the first intermediate half honeycomb stock;
a second pre-former stage that accepts the first intermediate half honeycomb stock and outputs a second intermediate half honeycomb stock, the second pre-former stage having a plurality of opposed, intermeshing nodes that respectively further bend the first intermediate half honeycomb stock at each of the spaced intervals to form the second intermediate half honeycomb stock having respective second angles greater than the first angles; and a final former stage that accepts the second intermediate half honeycomb stock, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the second intermediate half honeycomb stock at each of the spaced intervals into the half honeycomb corrugated web.
3. The multi-stage corrugator as claimed in claims 1 one or 2 further comprising a single drive system that synchronously drives each stage of the multi-stage corrugator.
4. The multi-stage corrugator as claimed in claim 3 wherein the single drive system comprises an electric motor that drives a drive chain connected to the respective stages of the multi-stage corrugator.
5. The multi-stage corrugator as claimed in claim 4 wherein the drive chain runs in an oil bath.
6. The multi-stage corrugator as claimed in any one of claims 1-5 wherein the nodes of the respective pre-former stages comprise opposed rollers having spaced-apart longitudinal nodes that intermesh to provide a nip that bends the stock at the spaced intervals to the intermediate half honeycomb shape.
7. The multi-stage corrugator as claimed in any one of claims 1-5 wherein the nodes of the final former stage comprise opposed belts that support transverse nodes that intermesh to provide a nip that further bends the stock at the spaced intervals to the half honeycomb web.
8. The multi-stage corrugator as claimed in any one of claims 1-5 wherein the nodes of the final former stage comprise opposed chains that support transverse nodes that intermesh to provide a nip that further bends the stock at the spaced intervals to the final half honeycomb shape.
9. The multi-stage corrugator as claimed in claims 7 or 8 wherein the nodes have a node height (NH) determined by a thickness of a half honeycomb core for a wood panel that is to be manufactured using the half honeycomb web.
10. The multi-stage corrugator as claimed in claim 9 wherein the nodes have a node top width (N-rw) that is about equal to the node height (NH).
11. The multi-stage corrugator as claimed in claim 10 wherein the nodes have a node side length (NHy) that is computed using the trigonometric function, sin 6 = NR/NHy, wherein: 6 = the angle of the bend to be made in the web at the final former stage for which the node is constructed.
12. The multi-stage corrugator as claimed in claim 11 wherein a diameter of a nip roller for each stage of the multi-stage corrugator is computed using the formulas:
(2 N Tw +2N os+2T) Nc D = , wherein: D = the diameter of the nip roller;
NTW =
TE
the node top width of nodes of the nip roller; Nos = the length of the side opposite the node side (NHy); T = a thickness of a web to be corrugated; and, Nc= a number of nodes on the nip roller; and cos 19 = Nos/M.1y, wherein: 0 = the angle of the bend to be made at the spaced intervals by the respective pre-former and final former stages.
(2 N Tw +2N os+2T) Nc D = , wherein: D = the diameter of the nip roller;
NTW =
TE
the node top width of nodes of the nip roller; Nos = the length of the side opposite the node side (NHy); T = a thickness of a web to be corrugated; and, Nc= a number of nodes on the nip roller; and cos 19 = Nos/M.1y, wherein: 0 = the angle of the bend to be made at the spaced intervals by the respective pre-former and final former stages.
13. The multi-stage corrugator as claimed in any one of claims 1-12 further comprising a web pre-treater that heats and moistens the thin, flat, pliable cold rolled wood laminae stock prior to corrugation.
14. The multi-stage corrugator as claimed in any one of claims 1-12 further comprising a web pre-treater that heats and moistens the thin, flat, pliable cold rolled wood laminae stock between stages of the multi-stage corrugator.
- 20 ¨
- 20 ¨
15. The multi-stage corrugator as claimed in any one of claims 1-13 further comprising flat, parallel guide plates that dampen vibration of the preformed web between stages of the multi-stage corrugator and support the pre-formed web to inhibit spring back of the respective transverse bends.
16. The multi-stage corrugator as claimed in any one of claims 1-14 wherein the final stage former includes at least one compression unit that applies pressure to the corrugated web to set the wood laminae of the corrugated web in a shifted and bent condition into which they have been moved during the corrugation process.
17. The multi-stage corrugator as claimed in claim 16 wherein the compression unit is divided transversely into respective first and second chambers.
18. The multi-stage corrugator as claimed in claim 16 wherein the respective first chambers are supplied with pressurized hot fluid to heat the corrugated web and the respective second chambers are supplied with pressurized cold fluid to cool the heated corrugated web.
19. The multi-stage corrugator as claimed in any one of claims 1-16 wherein the final stage former is at least 10 meters long.
20. The multi-stage corrugator as claimed in any one of claims 1-19 wherein in order to reduce spring back of pre-formed bends in the web between the pre-former stages, respective pre-former nip rollers of the at least one of the pre-former stages are machined to provide an inwardly curved radius on a top surface of each the nodes and a complimentary protrusion having the same radius provided between each of the nodes, whereby the top surface of each node meshes with the respective corresponding complimentary protrusions to accentuate pressure in a nip between the nodes at the respective transverse bends to reduce the spring back.
- 21 -
Claims (20)
1. A multi-stage corrugator for corrugating a thin, flat, pliable cold rolled wood laminae stock to form a half honeycomb corrugated web, comprising:
at least one pre-former stage that accepts the flat wood laminae stock and outputs a pre-formed web, each of the at least one pre-former stages having a plurality of opposed, intermeshing nodes that respectively transversely bend the stock into the pre-formed web having an intermediate half honeycomb shape with respective bends of less than ~60°; and a final former stage that accepts the pre-formed web, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the preformed stock at each of the spaced intervals into the final half honeycomb shape.
at least one pre-former stage that accepts the flat wood laminae stock and outputs a pre-formed web, each of the at least one pre-former stages having a plurality of opposed, intermeshing nodes that respectively transversely bend the stock into the pre-formed web having an intermediate half honeycomb shape with respective bends of less than ~60°; and a final former stage that accepts the pre-formed web, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the preformed stock at each of the spaced intervals into the final half honeycomb shape.
2. A multi-stage corrugator for corrugating a thin, flat, pliable cold rolled wood laminae stock to form a half honeycomb corrugated web, comprising:
a pre-former stage that accepts the flat wood laminae stock and outputs an intermediate half honeycomb stock, the pre-former stage having a plurality of opposed, intermeshing nodes that respectively transversely bend the flat stock at respective angles of less than ~60° on spaced intervals to form the intermediate half honeycomb stock; and a final former stage that accepts the intermediate half honeycomb stock, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the intermediate half honeycomb stock at each of the spaced intervals into the final half honeycomb shape.
a pre-former stage that accepts the flat wood laminae stock and outputs an intermediate half honeycomb stock, the pre-former stage having a plurality of opposed, intermeshing nodes that respectively transversely bend the flat stock at respective angles of less than ~60° on spaced intervals to form the intermediate half honeycomb stock; and a final former stage that accepts the intermediate half honeycomb stock, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the intermediate half honeycomb stock at each of the spaced intervals into the final half honeycomb shape.
3. A multi-stage corrugator for corrugating a thin, flat, pliable cold rolled wood laminae stock to form a half honeycomb corrugated web, comprising:
a first pre-former stage that accepts the flat wood laminae stock and outputs a first intermediate half honeycomb stock, the first pre-former stage having a plurality of opposed, intermeshing nodes that respectively transversely bend the flat stock at respective first angles on spaced intervals to form the first intermediate half honeycomb stock;
a second pre-former stage that accepts the first intermediate half honeycomb stock and outputs a second intermediate half honeycomb stock, the second pre-former stage having a plurality of opposed, intermeshing nodes that respectively further bend the first intermediate half honeycomb stock at each of the spaced intervals to form the second intermediate half honeycomb stock having respective second angles greater than the first angles; and a final former stage that accepts the second intermediate half honeycomb stock, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the second intermediate half honeycomb stock at each of the spaced intervals into the final half honeycomb shape.
a first pre-former stage that accepts the flat wood laminae stock and outputs a first intermediate half honeycomb stock, the first pre-former stage having a plurality of opposed, intermeshing nodes that respectively transversely bend the flat stock at respective first angles on spaced intervals to form the first intermediate half honeycomb stock;
a second pre-former stage that accepts the first intermediate half honeycomb stock and outputs a second intermediate half honeycomb stock, the second pre-former stage having a plurality of opposed, intermeshing nodes that respectively further bend the first intermediate half honeycomb stock at each of the spaced intervals to form the second intermediate half honeycomb stock having respective second angles greater than the first angles; and a final former stage that accepts the second intermediate half honeycomb stock, the final former stage having a plurality of opposed, intermeshing nodes that respectively further bend the second intermediate half honeycomb stock at each of the spaced intervals into the final half honeycomb shape.
4. The multi-stage corrugator as claimed in any one of claims 1-3 further comprising a single drive system that synchronously drives each stage of the multi-stage corrugator.
5. The multi-stage corrugator as claimed in claim 4 wherein the single drive system comprises an electric motor that drives a drive chain connected to the respective stages of the multi-stage corrugator.
6. The multi-stage corrugator as claimed in claim 5 wherein the drive chain runs in an oil bath.
7. The multi-stage corrugator as claimed in any one of claims 1-6 wherein the nodes of the respective pre-former stages comprise opposed rollers having spaced-apart longitudinal nodes that intermesh to provide a nip that bends the stock at the spaced intervals to the intermediate half honeycomb shape.
8. The multi-stage corrugator as claimed in any one of claims 1-6 wherein the nodes of the final former stage comprise opposed belts that support transverse nodes that intermesh to provide a nip that further bends the stock at the spaced intervals to the final half honeycomb shape.
9. The multi-stage corrugator as claimed in any one of claims 1-6 wherein the nodes of the final former stage comprise opposed chains that support transverse nodes that intermesh to provide a nip that further bends the stock at the spaced intervals to the final half honeycomb shape.
10. The multi-stage corrugator as claimed in claims 8 or 9 wherein the nodes have a node height (N H) determined by a thickness of a half honeycomb core for a wood panel that is to be manufactured using the half honeycomb core.
11. The multi-stage corrugator as claimed in claim 10 wherein the nodes have a node top width (N TW) that is about equal to the node height (N H).
12. The multi-stage corrugator as claimed in claim 11 wherein the nodes have a node side length (N HY) that is computed using the trigonometric function, sin .theta. = N H/N HY, wherein: .theta. = the angle of the bend to be made in the web at the final former stage for which the node is constructed.
13. The multi-stage corrugator as claimed in claim 12 wherein a diameter of a nip roller for each stage of the multi-stage corrugator is computed using the formulas:
wherein: D = the diameter of the nip roller; N TW
the node top width of nodes of the nip roller; N OS= the length of the side opposite the node side (N HY); T = a thickness of a web to be corrugated; and, N C= a number of nodes on the nip roller; and cos .theta. = N OS/N HY, wherein: .theta. = the angle of the bend to be made at the spaced intervals by the respective pre-former and final former stages.
wherein: D = the diameter of the nip roller; N TW
the node top width of nodes of the nip roller; N OS= the length of the side opposite the node side (N HY); T = a thickness of a web to be corrugated; and, N C= a number of nodes on the nip roller; and cos .theta. = N OS/N HY, wherein: .theta. = the angle of the bend to be made at the spaced intervals by the respective pre-former and final former stages.
14. The multi-stage corrugator as claimed in any one of claims 1-13 further comprising a web pre-treater that heats and moistens the thin, flat, pliable cold rolled wood laminae stock prior to corrugation.
15. The multi-stage corrugator as claimed in any one of claims 1-13 further comprising a web pre-treater that heats and moistens the thin, flat, pliable cold rolled wood laminae stock between stages of the multi-stage corrugator.
16. The multi-stage corrugator as claimed in any one of claims 1-14 further comprising flat, parallel guide plates that dampen vibration of the preformed web between stages of the multi-stage corrugator and support the pre-formed web to inhibit spring back of the respective transverse bends.
17. The multi-stage corrugator as claimed in any one of claims 1-15 wherein the final stage former includes at least one compression unit that applies pressure to the corrugated web to set the wood laminae of the corrugated web in a shifted and bent condition into which they have been moved during the corrugation process.
18. The multi-stage corrugator as claimed in claim 17 wherein the compression unit is divided transversely into respective first and second chambers.
19. The multi-stage corrugator as claimed in claim 17 wherein the respective first chambers are supplied with pressurized hot fluid to heat the corrugated web and the respective second chambers are supplied with pressurized cold fluid to cool the heated corrugated web.
20. The multi-stage corrugator as claimed in any one of claims 1-17 wherein the final stage former is at least 10 meters long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2988159A CA2988159C (en) | 2017-12-08 | 2017-12-08 | Multi-stage corrugator for composite wood panel cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2988159A CA2988159C (en) | 2017-12-08 | 2017-12-08 | Multi-stage corrugator for composite wood panel cores |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2988159A1 true CA2988159A1 (en) | 2019-06-08 |
| CA2988159C CA2988159C (en) | 2019-11-12 |
Family
ID=67057450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2988159A Active CA2988159C (en) | 2017-12-08 | 2017-12-08 | Multi-stage corrugator for composite wood panel cores |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2988159C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113246250A (en) * | 2020-05-15 | 2021-08-13 | 奥曼霍兹沃克斯塔夫有限公司 | Method and system for producing three-dimensional deformable plate |
| US12157250B2 (en) | 2016-03-21 | 2024-12-03 | Bondcore öU | Composite wood panels with corrugated cores and method of manufacturing same |
-
2017
- 2017-12-08 CA CA2988159A patent/CA2988159C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12157250B2 (en) | 2016-03-21 | 2024-12-03 | Bondcore öU | Composite wood panels with corrugated cores and method of manufacturing same |
| CN113246250A (en) * | 2020-05-15 | 2021-08-13 | 奥曼霍兹沃克斯塔夫有限公司 | Method and system for producing three-dimensional deformable plate |
| CN113246250B (en) * | 2020-05-15 | 2022-07-19 | 奥曼霍兹沃克斯塔夫有限公司 | Method and system for producing three-dimensional deformable plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2988159C (en) | 2019-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2005306514B2 (en) | Half closed thermoplastic honeycomb, their production process and equipment to produce | |
| CA2988159A1 (en) | Multi-stage corrugator for composite wood panel cores | |
| RU2684796C2 (en) | Honeycomb, in particular deformable honeycomb, for lightweight components, corresponding production method and sandwich component | |
| US2001632A (en) | Insulation against losses of heat and cold | |
| US2746139A (en) | Method of fabricating structural sandwiches | |
| JP2008532774A5 (en) | ||
| DE502007001965D1 (en) | ES ELEMENT OF A STEERING SPINDLE AND METHOD FOR THE PRODUCTION THEREOF | |
| JP2016535842A5 (en) | Apparatus for heat exchange between fluid flows and / or mass transfer and method for producing sheets therefor | |
| US3566643A (en) | Apparatus for the manufacture of helically coiled pipes of thin sheet metal | |
| DK1447211T3 (en) | Device for embossing continuous grooves of continuous web on both sides | |
| WO2006017290A3 (en) | Fatigue-resistance sheet slitting method and resulting sheet | |
| ITTO20080700A1 (en) | PROCEDURE AND DEVICE FOR PRODUCING ORTHOGONAL SOUND FILTERS | |
| US8642156B2 (en) | System and method for forming a support article | |
| JPH0579019B2 (en) | ||
| WO2016117860A3 (en) | Method for manufacturing foldable frame, and foldable frame manufactured thereby | |
| CN102837455B (en) | Honeycomb fashion carbon fiber energy absorber and manufacture method thereof and manufacturing equipment | |
| CN205149035U (en) | S type flute roller and S type corrugated paper manufacturing installation | |
| CN104011446A (en) | Tubular bodies and methods of forming same | |
| RU87724U1 (en) | HEAT INSULATION PANEL | |
| ITMO20070263A1 (en) | HEAT EXCHANGER. | |
| CA2757375C (en) | Producing single sheet metal from two separate sheets | |
| JP6860930B2 (en) | Floor heating panels, floor heating foldable panels, floor heating supply pipes used for them, floor heating panel units incorporating them, and floor heating systems using them. | |
| JPH01295838A (en) | Method and apparatus for manufacturing composite corrugated body | |
| US20110219599A1 (en) | Systems, Devices, and/or Methods for Fabricated Panels | |
| RU2313749C1 (en) | Heat-transfer surface |