CN205466591U - Glued wood - Google Patents
Glued wood Download PDFInfo
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- CN205466591U CN205466591U CN201620026179.2U CN201620026179U CN205466591U CN 205466591 U CN205466591 U CN 205466591U CN 201620026179 U CN201620026179 U CN 201620026179U CN 205466591 U CN205466591 U CN 205466591U
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- glued
- glued wood
- round log
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- log tenon
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Abstract
The utility model discloses a glued wood belongs to modern timber structure building materials field. Glued wood is including range upon range of glued wood strip / plywood and log tenon, the log tenon links into an integrated entity with range upon range of glued wood strip through hole and welding area in range upon range of glued wood strip or layer plate thickness orientation, its preparation process does: in proper order according to conventional glued wood manufacturing process to wooden plywood or stuff carry out the drying, block, get rid of the defect, scrape in the four sides, rubber coating and assembly, the pressurization, the prebored hole, rotatory friction weld, the release preparation obtains glued wood. The utility model discloses it also is pure green clean and sustainable development's glued wood production technology to utilize production that high -speed rotational circle dowel glues together the roof beam in the manufacturing cost who has reduced glued wood, has improved the shear strength of veneer roof beam, and mechanical properties such as the rigidity that has improved the veneer roof beam and intensity have also improved the stability of gluing together the roof beam simultaneously.
Description
Technical field
This utility model relates to Modern Wood Construction material, is specifically related to a kind of laminated wood.
Background technology
Laminated wood is commonly referred to as glued laminated timber or integrated timber (Glued Laminated Timber is called for short Glulam), and it is several layers or plank level gluing that tens layers thickness is 10-50mm to be formed, and is a kind of product efficiently utilizing timber.Form truss, arch, framework and beam column etc. with laminated wood and be commonly referred to as laminated structure.Glued wooden frame is one of most important supporting member in laminated structure.But the glued beam of this structure its bearing capacity when bearing moment of flexure receives the impact of the shear strength at glued beam two ends, and many times its ultimate load destroys the failure by shear that there occurs glued beam amount the most at first.
Generally, the bonding quality of laminated wood is very big to its Effect on Mechanical Properties, and the bonding quality of glue-line becomes positive correlation with the mechanical property of glued wooden frame.And the bonding quality of glue-line is closely related with the kind of adhesive, gluing and pressing technology etc..Manufacture laminated wood and typically use the adhesive of solidification of colding pressing, such as monocomponent polyurethane glue, resorcinol resin glue etc., and need to utilize special glued pressurized equipment.In order to ensure good adhesion effect, the pressing time of laminated wood is the most long, generally 2-48 hour, also to place it in health preserving a couple of days in room temperature environment after having pressurizeed again.Utilize prior art to produce glued beam and also exist that the utilization rate of equipment and installations such as production cycle length, low, the press of production efficiency is low, the high in cost of production shortcoming of high performance structures gluing agent, and the common glued beam produced is easy to failure by shear, reduces the mechanical property of glued beam.
Existing round log feather joint mode is mainly applied in furnature construction manufacture, is divided into again glued connection and interference fit connection two ways.And in glued round log feather joint, needing to use the adhesives such as polyvinyl acetate fat, it not only adds cost but also hardening time is relatively long, have impact on the production efficiency of finished product.
Utility model content
1, problem to be solved
The laminated wood cycle is produced longer for prior art, production cost is high, produces that equipment efficiency of usage is low and the problem such as product mechanics poor-performing, and this utility model provides a kind of laminated wood, solve existing laminated wood long for pressing time, manufacture the key problem that efficiency is low and laminated wood shearing strength is low.
2, technical scheme
Inventive principle: utilize spin friction solder technology by a number of round log tenon rapid welding to laminated wood under pressurised conditions, utilize the solder joints band between round log tenon surface and glued beam and impressed pressure jointly to act on and lower quickly laminated wood is carried out compression set.Obtain laminated wood short for pressing time, manufacture efficiency height and the effect of laminated wood shearing strength enhancing.
A kind of laminated wood, including stacking gluing batten/laminate and round log tenon；Described round log tenon, by hole and welded bands along the thickness direction of stacking gluing batten or laminate, links into an integrated entity with stacking gluing batten.
Preferably, described stacking gluing batten or stacking gluing batten that laminate is Lengthwise joint or laminate, described round log tenon is laterally along stacking gluing batten or laminate thickness, and single or some row welds, by high speed rotary grinding, the round log tenon linked into an integrated entity with stacking gluing batten or laminate.
The production method of a kind of laminated wood, the steps include:
(1) wooden laminate or batten are dried according to conventional laminated wood manufacturing process, block, remove defect, S4S, gluing and assembly；
(2) pressurization: laminate good to gluing, assembly or batten are put into pressurization clamping device and carries out pressurization and obtain laminated wood semi-finished product；
(3) prebored hole: align the center, hole of punching channel-section steel, in laminated wood semi-finished product prebored hole, the diameter of prebored hole 1-2mm less than the diameter of actual final apertures, hole depth runs through laminated wood blank thickness direction；
(4) spin friction welding: after prebored hole, den bohrkopf abbauen, clamping wooden round log tenon again, friction welding wooden round log tenon is rotated in prebored hole, when wooden round log tenon rotates completely through whole laminated wood blank thickness, pressing the scram button on electric hand drill, wooden round log tenon stops the rotation immediately, and pause round log tenon spin friction afterwards in 2-3 second has been welded；
(5) release: lay down oil pressure, takes off the pressurization channel-section steel on laminated wood semi-finished product on pressurization clamping device, takes out laminated wood semi-finished product, and saw cuts wooden round log tenon additional length and prepares laminated wood.
Preferably, it is 0.5-1.5MPa that the clamping device that pressurizes described in step (2) applies pressure.
Preferably, in step (3), described hole is being 100-400mm along center distance on laminated wood semi-finished product length direction, and hole is being 20-40mm along the center distance on laminated wood semi-finished product width, drill speed 2000-3000 rev/min.
Preferably, in step (3), the diameter 1-2mm less than the diameter of round log tenon of described prebored hole.
Preferably, in step (4), described wooden round log tenon is a diameter of 10-16mm, is longer than the wooden round log tenon of laminated wood blank thickness 20-50mm.
Preferably, in step (5), described spin friction welding rotating speed 2000-3000 rev/min.
Preferably, in step (5), when wooden round log tenon rotates completely through whole laminated wood blank thickness, round log tenon stops the rotation immediately, and after pause 2-3 second, round log tenon spin friction has been welded.
Described preparation method, also include the glued health preserving of step (6): the laminated wood that step (5) prepares is placed 5-10 days at room temperature, the withdrawal resistance and the anchor force that utilize welding round log tenon laminate each to wooden frame continue to pressurize to laminated wood, glued and health preserving.
A kind of laminated wood is applied to modern wood structure, can be as glued wooden frame construction material application.
3, beneficial effect
(1) by high speed rotating solder technology, the problem solving glued cost height time length between round log tenon and glued beam half cost, the mode of this round log feather joint has been applied in the production of structural wood, the mode simultaneously utilizing spin friction to weld makes to produce between round log tenon and base material good combination, not only production efficiency is higher, and from structure, improve the physical and mechanical property of structural wood, in addition it is also the round log feather joint mode of a kind of environment-friendly and green low cost sustainable, pollution-free, and bonding strength fully meets requirement.
(2) owing to serving the effect keeping glued beam pressurized along the addition of the round log tenon of the welding gluing of glued beam blank thickness direction arrangement, the pressurization dwell time after glued beam assembly is greatly shortened, reduce the holding time to press in single glued beam production process, improve the service efficiency of press, improving the production efficiency of production line, the glued beam really realizing serialization produces simultaneously.
(3) the single or multiple rows of welding round log tenon of thickness direction arrangement and the plank of stacking define the glued girder construction of a kind of novel frame-type, improve the anti-shear ability of glued beam, the most just improve the strength and stiffness of the bending resistance of glued beam, be integrally improved the serviceability of glued beam.
(4) high speed rotating round log tenon is utilized to carry out the production of glued beam while reducing the production cost of laminated wood, also it is the laminated wood production technology of a kind of pure green non-pollution and sustainable development, in addition the shear strength of glued beam is not only increased due to the addition of horizontal round log tenon, improve the mechanical property such as rigidity and intensity of glued beam, also improve the stability of glued beam simultaneously.
Accompanying drawing explanation
Fig. 1 is glued wooden frame compression system and makes round log tenon schematic diagram, 1-round log tenon in figure, 2-round log tenon electric drill chuck, and 3-pressurizes clamping device, and 4-punches channel-section steel, 5-laminated wood semi-finished product, 6-underlay hardwood plate, pading plate under 7-；
Fig. 2 is round log tenon spin friction welding procedure schematic diagram, 1-round log tenon in figure, 5-laminated wood semi-finished product, 9-prebored hole；
Fig. 3 is welding round log tenon and welded bands, 1-round log tenon in figure, 10-welded bands, 12-longitudinal direction stacking glued laminated board；
The structural representation of Fig. 4 laminated wood, 1-round log tenon in figure, 12-longitudinal direction stacking glued laminated board；
The schematic flow sheet of Fig. 5 preparation method.
Detailed description of the invention
Embodiment 1:
Preparing thickness is 90mm, the glued wooden frame of the number of plies 5 layers:
Wooden laminate (Lignum seu Ramulus Cunninghamiae Lanceolatae) being dried according to conventional laminated wood manufacturing process, block, remove the operations such as defect, S4S, gluing (resorcinol adhesive), assembly after, following processing step is carried out, as shown in Figure 5 according to technical solutions of the utility model:
(1) pressurization: as it is shown in figure 1, the wooden laminate of stacking that assembly is good is put into pressurization clamping device, is positioned by punching channel-section steel 4, underlay hardwood plate 6, lower pading plate 7 and pressurization clamping device 3, and applies pressure 0.8MPa, prepare laminated wood semi-finished product；
(2) prebored hole: align the center, hole of upper punching channel-section steel 4 with drill bit of electric hand drill 2, prebored hole 9 on laminated wood semi-finished product 5 thickness direction, prebored hole 9 is being 120mm along center distance on laminated wood semi-finished product length direction, prebored hole 9 is being 30mm along the center distance on laminated wood beam width direction, drill speed 2600 revs/min, the diameter 10mm of prebored hole, 2mm less than the diameter of actual final apertures, prebored hole 9 runs through laminated wood blank thickness direction deeply；
(3) spin friction welding: as shown in Figure 2, after prebored hole, den bohrkopf abbauen, the more a diameter of 12mm of clamping, the wooden round log tenon 1 of a length of 120mm, rotating welding round log tenon 1 in prebored hole 9, spin friction welding rotating speed 2600 revs/min, when wooden round log tenon rotates completely through whole laminated wood semi-finished product 5 thickness, presses the scram button on electric hand drill, wooden round log tenon 1 stops the rotation immediately, and after pausing 3 seconds, round log tenon spin friction has been welded；
(4) release: lay down oil pressure, takes off the pressurization channel-section steel on wooden frame, takes out laminated wood semi-finished product, and saw cuts round log tenon additional length, the laminated wood finished product of system.
(5) glued health preserving: placed by laminated wood finished product 7 days at room temperature, utilizes the withdrawal resistance of welding round log tenon laminate each to wooden frame and anchor force to continue the pressurization of laminated wood finished product, glued, health preserving.
The laminated wood finished product prepared, as shown in Figures 3 and 4, including stacking glued laminated board 12 and round log tenon 1；Round log tenon 1, by hole and welded bands 10 along the thickness direction of stacking glued laminated board, links into an integrated entity with stacking glued laminated board 12.Wherein stacking glued laminated board 12 is the stacking glued laminated board of Lengthwise joint, and described round log tenon 1 is laterally along stacking glued laminated board 12 thickness, and double welds, by high speed rotary grinding, the round log tenon 1 linked into an integrated entity with stacking glued laminated wood.
By above-mentioned laminated wood finished product, as wooden frame application glued in modern wood structure, with reference to GB/T 17657-2013 " timber structure test method standard ", glued wooden frame bonding quality and Deflection Modulus of Elasticity are tested.Result of the test shows, uses the shear strength of glued wooden frame, wood-breaking rate and the Deflection Modulus of Elasticity of the compacting of this utility model technology to be all higher than common glued glued wooden frame, such as table 1.
Table 1 result of the test
| Glued wooden frame gluing mode | Shear strength (MPa) | Wood-breaking rate (%) | Deflection Modulus of Elasticity (MPa) |
| Common glued | 4.9 | 98 | 6664 |
| Common gluing+spin friction welding | 6.45 | 100 | 8025 |
On the other hand, amounting to boring 34 in the present embodiment, gross drilling time is 102 seconds, and the whole pressurized operation time is only 30 minutes.And using the pressing time of this gluing wooden frame of resorcinol glue glued adhesion is 3-4 hour.
Summary is described, and this utility model technology can not only substantially reduce glued wooden frame pressing time, moreover it is possible to improves the mechanical property of glued wooden frame, especially shear strength and Deflection Modulus of Elasticity.
Embodiment 2:
Preparing thickness is 84mm, width 60mm, the compound glued wooden frame of the Borneolum Syntheticum-Lignum seu Ramulus Cunninghamiae Lanceolatae of the number of plies 5 layers.
After according to conventional glued wooden frame manufacturing process, wooden laminate being dried, blocking, remove the operations such as defect, S4S, gluing, carry out following processing step according to technical solutions of the utility model:
(1) assembly: using Borneolum Syntheticum-Lignum seu Ramulus Cunninghamiae Lanceolatae-Borneolum Syntheticum to be combined assembly, upper and lower dash board is the Borneolum Syntheticum sheet material that 12mm is thick, and sandwich layer is three layers of Lignum seu Ramulus Cunninghamiae Lanceolatae, and thickness is respectively 20mm.
(2) pressurization: the gluing that assembly is good is combined wooden frame entirety and puts into pressurization clamping device, apply pressure 1.5MPa.
(3) prebored hole: align the center, hole of upper pressurization channel-section steel with drill bit of electric hand drill, prebored hole on compound wooden frame, hole is being 400mm along center distance on wood composite beam length direction, pitch-row side distance on wood composite beam width direction is 40mm, owing to compound wooden frame beam overall is 60mm, therefore use single boring；Drill speed 3000 revs/min, the diameter 14mm of prebored hole, hole depth runs through laminated wood cantilever thickness direction.
(4) spin friction welding: after prebored hole, den bohrkopf abbauen, the a diameter of 16mm of clamping again, the round log tenon of a length of 134mm, rotating welding round log tenon in prebored hole, spin friction welding rotating speed 3000 revs/min, when round log tenon rotates completely through whole wood composite cantilever thickness, pressing the scram button on electric hand drill, round log tenon stops the rotation immediately, and after pausing 2 seconds, dowel spin friction has been welded.
(5) release: lay down oil pressure, takes off the pressurization channel-section steel on compound wooden frame, takes out compound wooden frame, and saw cuts round log tenon additional length.
(6) glued health preserving: placed 7 days at room temperature by compound glued wooden frame, utilizes the withdrawal resistance of welding round log tenon laminate each to wooden frame and anchor force to continue to pressurize to wooden frame, glued, health preserving.
With reference to GB/T 17657-2013 " timber structure test method standard ", bonding quality and Deflection Modulus of Elasticity to compound glued wooden frame are tested.Result of the test shows, uses the compound glued shear strength of wooden frame, wood-breaking rate and the Deflection Modulus of Elasticity of the compacting of this utility model technology to be all higher than common glued glued wooden frame, such as table 2.
Table 2 result of the test
| Glued wooden frame gluing mode | Shear strength (MPa) | Wood-breaking rate (%) | Deflection Modulus of Elasticity (MPa) |
| Common glued | 4.9 | 98 | 6664 |
| Compound gluing+spin friction welding | 6.58 | 100 | 11252 |
On the other hand, amounting to boring 18 in the present embodiment, gross drilling time is 54 seconds, 15 minutes whole pressurized operation time.And commonly use be usually 2-3 hour the pressing time of this gluing wooden frame of phenol-modified resorcinol glue glued adhesion.
Summary is described, and this utility model technology can not only substantially reduce compound glued wooden frame pressing time, moreover it is possible to improves the mechanical property of compound glued wooden frame, especially shear strength and Deflection Modulus of Elasticity.
Embodiment 3:
Thickness is 126mm, the glued wooden frame of the number of plies 7 layers.
After according to conventional glued wooden frame manufacturing process, wooden laminate being dried, blocking, remove the operations such as defect, S4S, gluing, assembly, carry out following processing step according to technical solutions of the utility model:
(1) pressurization: gluing wooden frame good for assembly is put into pressurization clamping device, applies pressure 0.5MPa.
(2) prebored hole: align the center, hole of upper pressurization channel-section steel with drill bit of electric hand drill, prepares prebored hole on glued wooden frame.Because of deck-molding 7 layers, beam thickness is relatively big, therefore holes at twice.For the first time from the upper surface boring of glued beam, hole depth 90mm, hole is being 100mm along center distance on laminated wood beam length direction, and the left and right side on centre-to-centre spacing laminated wood beam width direction, hole is respectively 30mm and 50mm (deck-siding 80mm), bores 18 holes altogether；Turn after wooden frame release before second time boring, bottom surface is upward, the i.e. lower surface at wooden frame is holed, hole depth is still 90mm, hole is being 100mm along center distance on laminated wood beam length direction, left and right side on centre-to-centre spacing laminated wood beam width direction, hole is respectively 50mm and 30mm, bores 17 holes altogether.Drill speed 2000 revs/min, the diameter 10mm of prebored hole, 2mm less than the diameter of actual final apertures；
(3) spin friction welding: after prebored hole, den bohrkopf abbauen, the a diameter of 10mm of clamping again, the round log tenon of a length of 110mm, rotating welding round log tenon in prebored hole, spin friction welding rotating speed 2000 revs/min, when round log tenon is rotated up to the predetermined degree of depth, pressing the scram button on electric hand drill, round log tenon stops the rotation immediately, and after pausing 3 seconds, dowel spin friction has been welded.
(4) release: lay down oil pressure, takes off the pressurization channel-section steel on wooden frame, takes out wooden frame, and saw cuts round log tenon additional length.
(5) glued health preserving: gluing wooden frame is placed in room temperature 7 days, utilizes the withdrawal resistance of welding round log tenon laminate each to wooden frame and anchor force to continue to pressurize to wooden frame, gluing, health preserving.
With reference to GB/T 17657-2013 " timber structure test method standard ", glued wooden frame bonding quality and Deflection Modulus of Elasticity are tested.Result of the test shows, uses the shear strength of glued wooden frame, wood-breaking rate and the Deflection Modulus of Elasticity of the compacting of this utility model technology to be all higher than common glued glued wooden frame, such as table 3.
Table 3 result of the test
| Glued wooden frame gluing mode | Shear strength (MPa) | Wood-breaking rate (%) | Deflection Modulus of Elasticity (MPa) |
| Common glued | 5.1 | 100 | 6840 |
| Common gluing+spin friction welding | 6.47 | 100 | 8695 |
On the other hand, amounting to boring 35 in the present embodiment, gross drilling time is 105 seconds, 30 minutes whole pressurized operation time.And commonly use be usually 2-3 hour the pressing time of this gluing wooden frame of phenol-modified resorcinol glue glued adhesion.
Summary is described, and this utility model technology can not only substantially reduce glued wooden frame pressing time, moreover it is possible to improves the mechanical property of glued wooden frame, especially shear strength and Deflection Modulus of Elasticity.
Claims (2)
1. a laminated wood, including stacking gluing batten/laminate, it is characterised in that also include round log tenon；Described round log tenon passes through
Hole and welded bands along the thickness direction of stacking gluing batten or laminate, link into an integrated entity with stacking gluing batten.
Laminated wood the most according to claim 1, it is characterised in that described stacking gluing batten or laminate are Lengthwise joint
Stacking gluing batten or laminate, described round log tenon is laterally along stacking gluing batten or laminate thickness, single or some rows
The round log tenon linked into an integrated entity with stacking gluing batten or laminate is welded by high speed rotary grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026179.2U CN205466591U (en) | 2016-01-12 | 2016-01-12 | Glued wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026179.2U CN205466591U (en) | 2016-01-12 | 2016-01-12 | Glued wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205466591U true CN205466591U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620026179.2U Expired - Fee Related CN205466591U (en) | 2016-01-12 | 2016-01-12 | Glued wood |
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| CN (1) | CN205466591U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500474A (en) * | 2016-01-12 | 2016-04-20 | 南京林业大学 | Laminated wood and production method and application thereof |
| CN110539371A (en) * | 2019-09-11 | 2019-12-06 | 南京林业大学 | staggered laminated plate prepared based on tenon rotary friction welding technology |
-
2016
- 2016-01-12 CN CN201620026179.2U patent/CN205466591U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500474A (en) * | 2016-01-12 | 2016-04-20 | 南京林业大学 | Laminated wood and production method and application thereof |
| CN105500474B (en) * | 2016-01-12 | 2020-11-20 | 南京林业大学 | Laminated wood and production method and application thereof |
| CN110539371A (en) * | 2019-09-11 | 2019-12-06 | 南京林业大学 | staggered laminated plate prepared based on tenon rotary friction welding technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20190112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |