Intelligent wood structure beam gluing and pressure maintaining method based on wood material characteristics

Abstract

The invention discloses an intelligent wood structure beam gluing and pressure maintaining method based on wood material characteristics. A plurality of continuous gluing and pressure maintaining mechanisms are used for providing gluing pressure for different parts of a wood plate composed of a plurality of glued and to-be-glued single plates and maintaining a long-time pressure maintaining state; the locking motor is provided with a locking force sensing system, a locking sleeve installed on a rotating shaft of the locking motor is matched with a bolt pull rod, and the wood structure is glued and locked, so that the locking force reaches the elastic yield stress interval capable of being borne by the wood structure material. The other end of the bolt pull rod is matched with the thrust ball bearing, the thrust ball bearing interacts with the high-toughness cushion block installed on the pressing base, the wood structure gluing process can be kept within the elastic yield stress range all the time, wood cannot be subjected to plastic deformation, and therefore the internal strength of the wood structure and the uniformity of the internal strength are guaranteed. Gluing pressure maintaining is carried out according to elastic yield stress of different woods based on different wood characteristics, manual intervention of a wood structure gluing process is avoided, and the quality stability of a glued wood structure can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of plywood presses, in particular to an intelligent wooden structure beam gluing and pressure-maintaining method based on the characteristics of wooden materials. Background Art

[0002] At present, the traditional plywood press includes a tie bar, a wedge pin, a press seat and a support column. The tie bar passes through the front-to-back gaps on the press seat and the support column, and the wedge pin is inserted into the hole of the tie bar, and the wedge pin contacts the side of the press seat. The gluing pressure method based on the above-mentioned traditional plywood press is: pull the tie bar, the tie bar drives the wedge pin to move, the wedge pin pushes the press seat, and the press seat then presses the multiple veneers to be glued, and the multiple veneers to be glued are clamped between the press seat and the support column. During use, it was found that due to the influence of multiple factors such as veneer thickness, veneer moisture content, veneer surface roughness, unit pressure, etc., the traditional gluing pressure method is difficult to provide suitable and continuous pressure for veneers of different materials and special-shaped beams with different bending degrees: that is, when the wedge pin is inserted into the hole of the pressure strip, the wedge pin is inserted too tightly, which will cause excessive pressure and plastic deformation of the veneer; when the wedge pin is inserted too loosely, the pressure is too small and the gluing is not thorough. The wedge pin is also easily squeezed out of the hole of the pull strip during the gluing and forming process of the veneer (that is, when the pull strip is pulled), and it needs to be pinned again; resulting in uneven quality of wooden structure beams; and there are many human intervention links, low efficiency and low output. In response to the above problems, an intelligent gluing pressure-maintaining device and method based on the material characteristics of the gluing object are proposed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an intelligent wooden structure beam gluing and pressure maintaining device and method based on the characteristics of wood materials in view of the deficiencies of the above-mentioned prior art. The method can provide suitable and continuous pressure to multiple veneers to be glued. According to customer needs, various parts of the multiple veneers can be gradually made to achieve the shape required by the customer of the wooden structure beam. After the multiple veneers are continuously pressure-maintained for a period of time, the gluing of the multiple veneers is completed and a wooden structure beam with a certain shape is formed; at the same time, the purpose of avoiding plastic deformation of the wooden structure beam and improving the uniformity of internal stress of the wooden structure beam is achieved.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0005] An intelligent gluing and pressure-maintaining method for wooden structural beams based on the characteristics of wooden materials, wherein a plurality of continuous gluing and pressure-maintaining mechanisms A respectively provide continuous pressure to the gluing parts of a plurality of wooden boards 5 composed of veneers that have been coated with glue and are to be glued; the plurality of veneers are gradually glued together to form a structural wooden beam, and after the plurality of veneers are continuously pressure-maintained for a period of time, the gluing of the plurality of veneers is completed;

[0006] Each continuous gluing and pressure-maintaining mechanism includes a supporting base 1, a bolt rod 2, a cushion block 3, a pressure seat 4, a vertical retainer 6, a movable thread top plate 7, two or more guide pillars 8, and a locking nut 9 fixed to the vertical retainer 6 near the movable thread top plate 7; the bolt rod 2 has a threaded portion threadedly matched with the movable thread top plate 7 and the locking nut 9; the guide pillar 8 is fixed on the end surface of the vertical retainer 6 near the movable thread top plate 7, and the movable thread top plate 7 is slidably arranged on the guide pillar 8 in the axial direction on the bolt rod 2; one end of the bolt rod 2 is a torsion end matched with a locking sleeve 11;

[0007] The pressure system B includes a motor 13 and a torque AI calculation module 14. The rotating shaft head of the motor 13 is equipped with a locking sleeve 11.

[0008] The specific steps include:

[0009] Step 1: Perform the following operations on the multiple continuous gluing and pressure-maintaining mechanisms A:

[0010] Step 1.1: Adjust the position of the vertical retainer 6 so that the vertical retainers 6 in the plurality of continuous gluing and pressure-maintaining mechanisms A are arranged in the shape of the required structural beams; after the position of the vertical retainer 6 is adjusted, the position is fixed;

[0011] Step 1.2: One end of the bolt rod 2 is coaxially assembled with the thrust ball bearing and fits with each other. After that, the other end of the bolt rod 2 passes through the cushion block 3, the pressure seat 4, the vertical retainer 6, the movable thread top plate 7 and the anti-loosening nut 9 in sequence, and the threaded part of the bolt rod 2 is threadedly matched with the movable thread top plate 7 and the anti-loosening nut 9. The bolt rod 2 is rotated so that the movable thread top plate 7 fits with the end face of the vertical retainer 6 under the guidance of the guide column 8;

[0012] Step 1.3: placing the wooden board 5 between the pressing seat 4 and the vertical retaining frame 6 in the plurality of continuous gluing and pressure-maintaining mechanisms A;

[0013] Step 2: Move the pressure system B so that the locking sleeve 11 is coaxially matched with the torsion end of the first continuous gluing and pressure-maintaining mechanism arranged in the first place among the multiple continuous gluing and pressure-maintaining mechanisms A, start the motor 13, and drive the bolt pull rod 2 to rotate through the locking sleeve 11. At this time, the force between the movable threaded top plate 7 and the end face of the vertical retaining frame 6 becomes larger and larger; the torque AI calculation module 14 calculates the tension on the bolt pull rod 2 in real time according to the torque of the motor 13, and calculates the stress of the wooden board 5 in combination with the contact area between the wooden board 5 and the vertical retaining frame 6; when the stress of the wooden board 5 reaches the elastic yield stress range of the wood, the motor 13 stops rotating immediately. Each single board in the wooden structure beam is the same kind of wood. The elastic yield stress of the wood refers to the elastic yield stress of the same wood as the single board.

[0014] Step 3: Rotate the anti-loosening nut 9 so that the anti-loosening nut 9 is pressed against the movable thread top plate 7 to limit the movable thread top plate 7;

[0015] Step 4: According to the arrangement order of the continuous gluing and pressure-maintaining mechanisms in the multiple continuous gluing and pressure-maintaining mechanisms A, the second continuous gluing and pressure-maintaining mechanism, the third continuous gluing and pressure-maintaining mechanism, the fourth continuous gluing and pressure-maintaining mechanism are sequentially operated, until the last continuous gluing and pressure-maintaining mechanism arranged at the end is sequentially operated in the same manner according to steps 2 and 3, so as to realize locking of the wooden board 5;

[0016] As a further improved technical solution of the present invention, multiple gluing and pressure-maintaining mechanisms A can be arranged in a straight line, an arc shape or an "S" curve shape. When arranged in a straight line, straight wooden structure beams are pressure-maintained and glued; when arranged in an arc shape, arcuate wooden structure beams are pressure-maintained and glued; when arranged in an "S" shape, "S"-shaped special-shaped beams are pressure-maintained and glued.

[0017] As a further improved technical solution of the present invention,

[0018] Each continuous gluing and pressure-maintaining mechanism further includes a rubber pad fixed on a side of the pressure seat 4 that contacts the wooden board 5 , and the bolt pull rod 2 passes through the rubber pad.

[0019] As a further improved technical solution of the present invention, the pad 3 is connected to the end face of the pressure seat 4 through a countersunk hole and a countersunk bolt, and a thrust ball bearing is arranged between the pad 3 and one end of the bolt pull rod 2, so that the bolt pull rod will not drive the pad 3 and the pressure seat 4 to rotate when it rotates, and at the same time, the thrust ball bearing, the pad 3, and the pressure seat 4 only bear the axial force of the bolt pull rod 2.

[0020] As a further improved technical solution of the present invention, the pad 3 is a high-toughness pad 3 made of resin material or high-toughness rubber material. The high-toughness pad 3 undergoes elastic strain during the compression process, and enables the high-toughness pad 3 to compensate for the deformation of the wooden board 5 during the entire gluing and pressure holding time, so that the stress of the wooden board 5 is within the elastic yield stress range of the wood without causing plastic deformation of the wooden board 5.

[0021] As a further improved technical solution of the present invention, the pressure system B also includes a secondary slide 15, a secondary slide 16, a main slide 17, and a main slide 18; the main slide 17 is slidably set on the main slide 18, the secondary slide 15 is fixed on the main slide 17, the secondary slide 16 is slidably set on the secondary slide 15, and the main slide 18 is perpendicular to the secondary slide 15; the motor 13 is directly set on the secondary slide 16, or the motor 13 is set on the end robot arm in the multi-degree-of-freedom robot arm, and the multi-degree-of-freedom robot arm is set on the secondary slide 16.

[0022] As a further improved technical solution of the present invention, the pressure system B also includes a first positioning probe 12 arranged in the locking sleeve 11 and a second positioning probe 10 arranged at the torsion end. The first positioning probe 12 and the second positioning probe 10 transmit displacement signals to each other to ensure the accurate alignment of the locking sleeve 11 and the bolt rod 2.

[0023] As a further improved technical solution of the present invention, the torsion AI calculation module 14 is embedded with a database of elastic yield stress intervals of different wood materials obtained through experimental tests.

[0024] As a further improved technical solution of the present invention, there are multiple wooden boards 5, which are symmetrical up and down with respect to the horizontal plane where the axis of the bolt pull rod 2 is located.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The intelligent wood structure beam gluing and pressure maintaining device and method based on wood material characteristics can adjust the bolt pull rod locking according to the elastic deformation of the corresponding wood when gluing and manufacturing wood structure beams of different shapes through the elastic yield stress interval database of different wood materials, so that the pressure seat provides appropriate pressure for the plywood molding of the wood structure beam, reduces the defective rate of the finished product, and improves the uniformity of the internal stress of the wood structure beam.

[0027] On the basis of the prior art, the present invention changes the wedge pin into a high-toughness pad. Due to the material properties of the high-toughness pad, it will deform when subjected to pressure. This deformation is converted into a uniform and gradually increasing supporting force on the pressure seat, slowly applying pressure to the wooden board, further preventing the rapid application of excessive pressure and causing plastic deformation of the wooden structure beam. Finally, the position of the high-toughness pad and the pressure seat is locked by the pressure system and the anti-loosening nut, and the pressure tends to be stable. At this moment, the supporting force of the high-toughness pad is sufficient to support the pressure seat to provide effective gluing pressure for the wooden structure beam, but not too large to cause plastic deformation of the wooden structure beam, ensuring the gluing quality of the wooden structure beam, making the internal stress of the finished wooden structure beam uniform as a whole, and further improving its mechanical properties; when the bolt pull rod is rotated, the high-toughness pad installed on the pressure seat will not be squeezed out of the bolt pull rod. After the bolt pull rod is stopped, the anti-loosening nut locks the movable thread top plate to limit the movable thread top plate to ensure that the pressure is evenly distributed and not attenuated.

[0028] The present invention aims at gluing and pressure-maintaining of wooden structure beams made of different wooden materials, and can form a data set of high-toughness pad size through experiments, thereby ensuring high-quality gluing and manufacturing of wooden structure beams made of different wooden materials.

[0029] The specific dimensions and material properties of the high-toughness pad 3 are determined by the properties of the wood material of the wood board 5 to be glued, and this corresponding relationship has been determined through various wood gluing tests.

[0030] The present invention equips the motor with a torque AI calculation module that integrates the locking force of the bolt pull rod and the elastic yield stress range database of multiple wood materials. The torque AI calculation module detects the pressure value of the wooden structure beam in real time, and the pressure is transmitted to the rotating motor in real time. When the elastic yield stress range of the wood material is reached, the motor stops rotating. This step is very critical. Together with the high-toughness pad, it can effectively prevent the wooden structure beam from undergoing plastic deformation due to excessive pressure, and install an anti-loosening nut on the bolt pull rod to limit the movable threaded top plate, thereby providing the wooden structure beam with suitable and continuous average pressure.

[0031] The pressure seat of the invention is equipped with a rubber gasket, which makes up for the size error between the single wood boards and realizes the complete gluing between the wood boards.

[0032] In addition to gluing double-layer wooden structure beams, the present invention can also gluing multi-layer wooden structure beams to increase the output.

[0033] In addition to using a motor to drive the locking, the present invention can also use a multi-degree-of-freedom mechanical arm to position and lock the bolt pull rod, especially in the manufacture of curved wooden structure beams or "S"-shaped wooden structure beams, which can greatly improve the locking efficiency. Of course, at this time, the motor on the end mechanical arm of the multi-degree-of-freedom mechanical arm drives the bolt pull rod to rotate to achieve the locking of the wooden board.

[0034] When the continuous gluing and pressure-maintaining mechanism is working, the position of the vertical retainer is adjusted so that the vertical retainers in the multiple continuous gluing and pressure-maintaining mechanisms are arranged into a certain line segment figure, which can be a straight line, an arc or an "S" curve. After the position of the vertical retainer is adjusted, the position is fixed. One end of the multi-layer board (wooden board) coated with glue is first fixed to the first continuous gluing and pressure-maintaining mechanism in the continuous gluing and pressure-maintaining mechanism. The bolt pull rod and the thrust ball bearing are coaxially assembled and fit each other. After that, the other end of the bolt pull rod passes through the high-toughness pad, the pressure seat, the multi-layer board, the vertical retainer, the movable threaded top plate and the locking nut in turn. The bolt pull rod is turned so that the movable threaded top plate fits the end face of the vertical retainer under the guidance of the guide column. Start the pressure system. The shaft head of the motor on the pressure system is equipped with a locking sleeve. The locking sleeve is equipped with a first positioning probe. The first positioning probe is automatically aligned with the second positioning probe to achieve coaxial positioning of the locking sleeve and the bolt rod. Under the action of the slide, the motor drives the locking sleeve and the end (torsion end) of the bolt rod to cooperate and rotate. At this time, the force between the movable thread top plate and the end face of the vertical retainer is getting bigger and bigger. The torque AI calculation module is set on the motor. The torque AI calculation module can convert and display the tension on the bolt. When the tension reaches the elastic yield stress range of the wooden board, the motor rotation is immediately stopped. Turn the anti-loosening nut so that the anti-loosening nut is close to the movable thread top plate to limit the movable thread top plate. The second, third, fourth to Nth continuous gluing and pressure-maintaining mechanisms repeat the above steps in the locking process of the multi-layer board, and the gluing can be completed after a certain period of pressure maintenance.

[0035] The torque AI calculation module 14 imports the elastic yield stress interval of the wood in advance. When the tension on the bolt pull rod 2 is placed in the elastic yield stress interval of the wood, the motor 13 is immediately controlled to stop rotating. At this time, the anti-loosening nut 9 is rotated to limit the movable threaded top plate 7. The movable threaded top plate 7 and the anti-loosening nut 9 form a double-nut locking structure with the same bolt, which plays a role in preventing the bolt pull rod 2 from loosening. The torque AI calculation module 14 ensures that the tension on the bolt pull rod 2 is placed in the elastic yield stress interval of the wood. The high-toughness pad 3 also undergoes elastic strain during the compression process. This mutual dynamic force keeps the wooden board 5 in the elastic yield strain interval without plastic deformation. The first, second, third, and last, i.e., the Nth, continuous gluing and pressure-maintaining mechanisms are locked in sequence, with the purpose of driving out excess stress on the glue surface and ensuring that the gluing surface of the wood is completely fitted.

[0036] A rubber pad is fixed on the side of the pressure seat 4 that contacts the wooden board 5 to compensate for the size error of a single wooden board 5 in the gluing pressure direction, thereby ensuring that multiple wooden boards 5 can fit tightly during the gluing process.

[0037] In summary, the present invention can solve the problem that the traditional method of gluing and pressurizing wooden beams is difficult to provide suitable and continuously uniform pressure for wooden beams made of different wood materials, thereby achieving the purpose of avoiding plastic deformation of wooden beams and improving the uniformity of internal stress of wooden beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0039] Figure 2 This is a working state diagram of a single continuous gluing and pressure-maintaining mechanism and a pressure-applying system in the present invention applying pressure to a wooden structure beam during gluing.

[0040] Figure 3 This is a schematic diagram of the perspective of the positioning probe of the pressure application system of the present invention.

[0041] Figure 4 It is a schematic diagram of the pressure seat structure.

[0042] Figure 5 This is a schematic diagram of the shape and size of the high-strength and toughness pad.

[0043] Figure 6 This is a working state diagram of the gluing and pressure-maintaining of a curved wooden structure beam by multiple continuous gluing and pressure-maintaining mechanisms of the present invention.

[0044] Figure 7 This is a working state diagram of gluing and pressurizing an "S"-shaped wooden structure beam by using multiple continuous gluing and pressurizing mechanisms of the present invention.

[0045] Figure 8 This is a diagram of the stress changes in wood panels during pressure gluing.

[0046] Fig. 9 This is a state diagram of a single continuous gluing and pressure-maintaining mechanism working on the gluing and pressure-maintaining of a curved wooden structure beam. DETAILED DESCRIPTION

[0047] The specific embodiments of the present invention are further described below according to the accompanying drawings:

[0048] like Figure 1 As shown, this embodiment provides an intelligent gluing and pressure-maintaining device for wood structure beams based on the characteristics of wood materials, including a plurality of continuous gluing and pressure-maintaining mechanisms A and a pressure-applying system B. The arrangement pattern of the plurality of continuous gluing and pressure-maintaining mechanisms A is not fixed.

[0049] like Figure 2 As shown, each of the multiple continuous gluing and pressure maintaining mechanisms A includes a support base 1, a bolt pull rod 2, a high-toughness pad 3, a pressure seat 4, a vertical retaining frame 6, a movable threaded top plate 7, a guide column 8, a lock nut 9 and a second positioning probe 10.

[0050] like Figure 4 As shown, the press seat 4 includes a press seat main body 4.1 and a rubber gasket 4.2. During the gluing pressure process, the rubber gasket 4.2 can always ensure seamless contact between the veneers of each wooden board, making up for the size error between the veneers that make up the wooden board, thereby improving the gluing quality.

[0051] The rotating shaft head of the motor 13 of the pressure system B is equipped with a locking sleeve 11, and a first positioning probe 12 (such as Figure 3 As shown), the first positioning probe 12 automatically aligns with the second positioning probe 10, and the motor 13 drives the locking sleeve 11 to cooperate with the end of the bolt rod 2 under the action of the slide, and rotates. At this time, the force between the movable thread top plate 7 and the end face of the vertical retainer 6 is getting bigger and bigger. The torque AI calculation module 14 is set on the motor 13. The torque AI calculation module 14 can convert and display the tension on the bolt rod 2. When the tension reaches the elastic yield stress range of the multilayer board, the rotation of the motor 13 is immediately stopped;

[0052] The plurality of continuous gluing and pressure-maintaining mechanisms are used to respectively provide continuous pressure to the gluing locations of the plurality of veneers to be glued, thereby forming a glued wooden structure beam having a certain shape.

[0053] In this implementation case, Figure 1 , Figure 6 and Figure 7 As shown, multiple gluing and pressure-maintaining mechanisms A can be arranged in a straight line, an arc or an "S" curve. When arranged in a straight line, they can be pressure-maintained and glued straight wooden structure beams, when arranged in an arc, they can be pressure-maintained and glued curved wooden structure beams, and when arranged in an "S" shape, they can be pressure-maintained and glued "S"-shaped special-shaped beams. Regardless of whether it is a straight wooden structure beam, a curved wooden structure beam or an "S"-shaped special-shaped beam, the first gluing and pressure-maintaining mechanism is locked first, and then the second gluing and pressure-maintaining mechanism is bent and locked, and the third, fourth... until the last one, that is, the Nth (the last one arranged at the end) gluing and pressure-maintaining mechanism, all repeat the operation sequence of the second gluing and pressure-maintaining mechanism.

[0054] In this implementation case, Figure 1-2 As shown, the first glued wood structure is placed on the supporting base 1, and the bolt tie rod 2 passes through the middle of the first and second glued wood structures, and the first and second glued wood structures are symmetrical up and down with respect to the horizontal plane written by the bolt tie rod 2. This embodiment is not limited to two glued wood structure beams, but can also be four, six or even more, and the bolt tie rod 2 passes between the upper and lower wood structure beams to increase the output per unit time.

[0055] In this implementation case, Figure 2 and Figure 4As shown, a rubber pad is fixedly mounted on the side of the pressure seat 4 that contacts the wooden board 5 to compensate for the dimensional error of a single wooden board 5 in the gluing pressure direction, thereby ensuring that multiple wooden boards 5 can fit tightly during the gluing process.

[0056] In this implementation case, Figure 2 and Figure 5 As shown, the high-toughness pad 3 is connected to the end face of the pressure seat 4 through a countersunk hole and a countersunk bolt, and the high-toughness pad 3 is connected to the flat head end of the bolt pull rod 2 through the thrust ball bearing end, so that the bolt pull rod will not drive the high-toughness pad 3 and the pressure seat 4 to rotate when rotating, and at the same time, the thrust ball bearing, the high-toughness pad 3, and the pressure seat 4 only bear the axial force of the bolt pull rod 2. The high-toughness pad 3 can be made of resin material or high-toughness rubber material, so that the entire bonding pressure stress range is within the elastic yield range of the wooden board 5 without causing plastic deformation of the wooden board 5. The specific external dimensions of the high-toughness pad 3 (including the thickness and radius values ​​of each part) and the material properties are determined by the wood material properties of the glued wooden board 5, and this corresponding relationship has been determined through a variety of wood gluing tests.

[0057] In this implementation case, Figure 1 , Figure 6 and Figure 7 As shown, the first, second, third, and finally the Nth continuous gluing and pressure-maintaining mechanisms need to be locked one by one in sequence, the purpose of which is to drive out the excess stress on the glue surface and ensure that the gluing surface of the wood 5 is completely fitted.

[0058] In this implementation case, Figure 2 and Figure 3 As shown, the bolt pull rod 2 is tightened under the joint action of the pressure system B and the movable threaded top plate 7. The pressure system B includes a locking sleeve 11, a motor 13, a first positioning probe 12, a torque AI calculation module 14, an auxiliary slide rail 15, an auxiliary slide table 16, a main slide table 17, and a main slide rail 18.

[0059] In this implementation case, Figure 1 and Figure 2 As shown, in the pressure system B, the first positioning probe 12 and the second positioning probe 10 in the gluing and pressure-maintaining mechanism transmit displacement signals to each other to ensure the accurate alignment of the locking sleeve 11 and the bolt pull rod 2.

[0060] In this implementation case, Figure 1 and Figure 2 As shown, in the pressure system B, the torque AI calculation module 14 imports the elastic yield stress range of the wooden board 5 in advance. When the tension exerted on the bolt pull rod 2 makes the stress of the wooden board reach the elastic yield stress range of the wooden board 5, the motor 13 is immediately controlled to stop rotating. At this time, the anti-loosening nut 9 is rotated to limit the movable threaded top plate 7.

[0061] In this implementation case, Figure 1 , Figure 2 and Figure 8 As shown, in the pressure system B, the torque AI calculation module 14 integrates a variety of wood elastic yield stress interval databases and torque and pressure conversion programs. Figure 8 When the elastic yield stress of the wood is in the range, the motor 13 is stopped immediately. If the external pressure is too large and exceeds the elastic yield stress range of the wood, Figure 8 As shown, the wood causes stress decay in the entire pressure-holding system under plastic deformation.

[0062] In this implementation case, Figure 2 As shown, the torsion AI calculation module 14 ensures that the tension exerted on the bolt pull rod 2 places the stress of the wooden board within the elastic yield stress range of the wooden board 5, and the high-toughness pad 3 also undergoes elastic strain during the compression process. This mutual dynamic force keeps the wooden board 5 within the elastic yield strain range without plastic deformation.

[0063] In this implementation case, Figure 1 , Figure 2 As shown, the movable threaded top plate 7 and the anti-loosening nut 9 form a double-nut locking structure with the same bolt, which plays a role in preventing the bolt pull rod 2 from loosening.

[0064] In this implementation case, Figure 6 and Figure 7 As shown, when multiple gluing and pressure-maintaining mechanisms A are arranged in an arc or "S" curve shape or when gluing multi-layer wooden structures, the motor 13 of the pressure-applying system B is fixed on the end arm of the multi-degree-of-freedom robotic arm 19, and the multi-degree-of-freedom robotic arm 19 is arranged on the auxiliary slide 16, and the auxiliary slide 16 is slidably arranged on the auxiliary slide rail 15, and the auxiliary slide rail 15 is fixed on the main slide 17, and the main slide 17 is slidably arranged on the main slide rail 18. Under the action of the slide rails and slides (including the main slide rails and the main slide, and the auxiliary slide rails and the auxiliary slides), the gluing and pressure-maintaining locking of the special-shaped beam wooden structure or the multi-layer high-yield wooden structure is realized.

[0065] This embodiment also provides a continuous gluing and pressure-maintaining method for an intelligent gluing and pressure-maintaining device for wood structure beams based on the characteristics of wood materials. In this method, a plurality of continuous gluing and pressure-maintaining mechanisms A respectively provide continuous pressure to the gluing layers of a plurality of wood structure beams coated with glue and to be glued; in this method, the first gluing and pressure-maintaining mechanism is first locked, the second gluing and pressure-maintaining mechanism is bent and locked, and the third, fourth, and finally the last gluing and pressure-maintaining mechanism, i.e., the Nth gluing and pressure-maintaining mechanism, repeat the operation sequence of the second gluing and pressure-maintaining mechanism, until all the gluing devices are pressure-maintained for a certain period of time, the gluing of the wood structure beams is completed, and a certain shape is formed;

[0066] The specific steps include:

[0067] Step 1: Perform the following operations on the multiple continuous gluing and pressure-maintaining mechanisms A:

[0068] Step 1.1: Adjust the position of the vertical retainer 6 so that the vertical retainers 6 in the plurality of continuous gluing and pressure-maintaining mechanisms A are arranged into a line segment pattern, which may be a straight line, an arc, or an "S" curve; after the position of the vertical retainer 6 is adjusted, the position is fixed;

[0069] Step 1.2: The bolt rod 2 and the thrust ball bearing are coaxially assembled and fit each other. After that, the other end of the bolt rod 2 passes through the high-toughness pad 3, the pressure seat 4, the wooden board (multi-layer board) 5, the vertical retainer 6, the movable thread top plate 7 and the anti-loosening nut 9 in sequence. The threaded part of the bolt rod 2 is threadedly matched with the movable thread top plate 7 and the anti-loosening nut 9. The bolt rod 2 is rotated so that the movable thread top plate 7 fits with the end face of the vertical retainer 6 under the guidance of the guide column 8;

[0070] Step 1.3: Place a plurality of wooden boards 5 coated with glue and to be glued between the pressure seats 4 and the vertical retaining frames 6 in the plurality of continuous gluing and pressure-maintaining mechanisms A; the wooden boards 5 to be glued are symmetrical up and down on the horizontal plane where the axis of the bolt pull rod 2 is located;

[0071] Step 2: Start the pressure system B. The rotating shaft head of the motor 13 on the pressure system B is equipped with a locking sleeve 11. The locking sleeve 11 is equipped with a positioning probe 12. The positioning probe 12 is automatically aligned with the positioning probe 10. The motor 13 drives the locking sleeve 11 to cooperate with the end of the bolt pull rod 2 under the action of the slide (including the main slide and the auxiliary slide) or the multi-degree-of-freedom mechanical arm, and rotates. At this time, the force between the movable thread top plate 7 and the end face of the vertical retaining frame 6 is getting larger and larger. The torque AI calculation module 14 is set on the motor 13. The torque AI calculation module 14 can convert and display the tension on the bolt. When the tension reaches the point where the stress of the multilayer board is in the elastic yield stress range, the rotation of the motor 13 is immediately stopped;

[0072] Step 3: Rotate the anti-loosening nut 9 so that the anti-loosening nut 9 tightens the movable thread top plate 7 to limit the movable thread top plate 7;

[0073] Step 4: The second, third, fourth, and last (i.e., the Nth) continuous gluing and pressure-maintaining mechanism locks the multilayer board in the same manner as steps 2 and 3. After all continuous gluing and pressure-maintaining mechanisms are operated and pressure-maintained for a certain period of time, a gluing-completed wood structure gluing beam with a certain shape is formed. The locking nut can be loosened to take out the gluing-completed wood structure beam.

[0074] Of course, in this embodiment, multiple pressure systems B can also be set to achieve the tightening of the bolt pull rods 2 in multiple continuous gluing and pressure-maintaining mechanisms A to achieve rapid operation. When multiple gluing and pressure-maintaining mechanisms A are arranged in an arc or an "S" curve or when gluing multiple upper and lower wooden structures at the same time, the motor 13 of the pressure system B can be set on the end mechanical arm of the multi-degree-of-freedom mechanical arm, and the multi-degree-of-freedom mechanical arm is set on the auxiliary slide. Under the action of the slide rail and the slide, it is convenient to glue and pressurize the special-shaped beam wooden structure or multiple high-yield wooden structures. When gluing special-shaped special-shaped beams, in addition to the multi-degree-of-freedom mechanical arm solution mentioned in the present invention, a crane mechanism can also be used as a multi-degree-of-freedom carrier of the locking power mechanism such as the motor 13.

[0075] The present invention discloses an intelligent gluing and pressure-maintaining method for wood structure beams based on the characteristics of wood materials, wherein a plurality of continuous gluing and pressure-maintaining mechanisms respectively provide gluing pressure and maintain a long-term pressure-maintaining state for different parts of a plurality of wood boards composed of veneers that have been coated with glue and are to be glued; a locking motor is equipped with a locking force sensing system, and a locking sleeve mounted on the rotating shaft of the locking motor cooperates with a bolt pull rod to perform gluing and locking on the wood structure, so that the locking force reaches the elastic yield stress range that the wood structure material can withstand; the other end of the bolt pull rod cooperates with a thrust ball bearing, and the thrust ball bearing interacts with a high-toughness pad mounted on a pressure seat, so that the gluing process of the wood structure can be maintained within the elastic yield stress range without causing plastic deformation of the wood, thereby ensuring the internal strength of the wood structure and the uniformity of the internal strength. The present invention is based on different wood characteristics, performs gluing and pressure-maintaining according to the elastic yield stress of different woods, avoids manual intervention in the gluing process of the wood structure, and can greatly improve the stability of the quality of the glued wood structure.

[0076] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. An intelligent method for gluing and pressurizing wooden structure beams based on the characteristics of wooden materials, characterized in that: A plurality of continuous gluing and pressure-maintaining mechanisms (A) respectively provide continuous pressure to the gluing parts of a plurality of veneers that have been coated with glue and are to be glued; the plurality of veneers are gradually glued together to form a structural wooden beam, and after the plurality of veneers are continuously pressure-maintained for a period of time, the gluing of the plurality of veneers is completed; Each continuous gluing and pressure-maintaining mechanism comprises a supporting base (1), a bolt rod (2), a cushion block (3), a pressure seat (4), a vertical retaining frame (6), a movable threaded top plate (7), two or more guide pillars (8), and a locking nut (9) fixed to the vertical retaining frame (6) near the movable threaded top plate (7); the bolt rod (2) has a threaded portion that is threadably matched with the movable threaded top plate (7) and the locking nut (9); a guide pillar (8) is fixed to the end surface of the vertical retaining frame (6) on one side near the movable threaded top plate (7), and the movable threaded top plate (7) is axially slidably arranged on the guide pillar (8) on the bolt rod (2); one end of the bolt rod (2) has a torsion end that is matched with a locking sleeve (11); The pressure application system (B) includes a motor (13) and a torque AI calculation module (14). The rotating shaft head of the motor (13) is provided with a locking sleeve (11). The specific steps include: Step 1: Perform the following operations on the multiple continuous gluing and pressure-maintaining mechanisms (A): Step 1.1: adjusting the position of the vertical retainer (6) so that the vertical retainers (6) in the plurality of continuous gluing and pressure-maintaining mechanisms (A) are arranged in the shape of the required structural wood beams; after the position of the vertical retainer (6) is adjusted, the position is fixed; Step 1.2: One end of the bolt rod (2) is coaxially assembled with the thrust ball bearing and fits with each other. After that, the other end of the bolt rod (2) passes through the cushion block (3), the pressure seat (4), the vertical retaining frame (6), the movable threaded top plate (7) and the anti-loosening nut (9) in sequence, and the threaded portion of the bolt rod (2) is threadedly matched with the movable threaded top plate (7) and the anti-loosening nut (9). The bolt rod (2) is rotated so that the movable threaded top plate (7) fits with the end face of the vertical retaining frame (6) under the guidance of the guide column (8); Step 1.3: placing the wooden board (5) between the pressure seat (4) and the vertical retaining frame (6) in the plurality of continuous gluing and pressure-maintaining mechanisms (A); Step 2: Move the pressure system (B) so that the locking sleeve (11) is coaxially matched with the torsion end of the first continuous gluing and pressure-maintaining mechanism arranged in the first position among the multiple continuous gluing and pressure-maintaining mechanisms (A), start the motor (13), and drive the bolt pull rod (2) to rotate through the locking sleeve (11). At this time, the force between the movable threaded top plate (7) and the end face of the vertical retaining frame (6) becomes larger and larger; the torque AI calculation module (14) calculates the tension exerted on the bolt pull rod (2) in real time according to the torque of the motor (13), and calculates the stress of the wooden board (5) in combination with the contact area between the wooden board (5) and the vertical retaining frame (6); when the stress of the wooden board (5) reaches the elastic yield stress range of the wood, the motor (13) immediately stops rotating; Step 3: Rotate the anti-loosening nut (9) so that the anti-loosening nut (9) is pressed against the movable thread top plate (7) to limit the position of the movable thread top plate (7); Step 4: According to the arrangement order of the continuous gluing and pressure-maintaining mechanisms among the multiple continuous gluing and pressure-maintaining mechanisms (A), the second continuous gluing and pressure-maintaining mechanism, the third continuous gluing and pressure-maintaining mechanism, the fourth continuous gluing and pressure-maintaining mechanism are sequentially operated, until the last continuous gluing and pressure-maintaining mechanism arranged at the end is subjected to the same operations as steps 2 and 3 in sequence, thereby achieving locking of the wooden board (5).

2. The intelligent wooden structure beam gluing and pressure-maintaining device and method based on the characteristics of wooden materials according to claim 1 is characterized in that: Multiple gluing and pressure-maintaining mechanisms (A) can be arranged in a straight line, an arc or an "S" curve. When arranged in a straight line, straight wooden structure beams are pressure-maintained and glued. When arranged in an arc, curved wooden structure beams are pressure-maintained and glued. When arranged in an "S" shape, "S"-shaped special-shaped beams are pressure-maintained and glued.

3. The intelligent gluing and pressure-maintaining method for wooden structure beams based on the characteristics of wooden materials according to claim 1, characterized in that: Each continuous gluing and pressure-maintaining mechanism also includes a rubber pad fixed on a side of the pressure seat (4) in contact with the wooden board (5), and the bolt pull rod (2) passes through the rubber pad.

4. The intelligent gluing and pressure-maintaining method for wooden structure beams based on the characteristics of wooden materials according to claim 1, characterized in that: The cushion block (3) is connected to the end surface of the pressure seat (4) through a countersunk hole and a countersunk bolt, and a thrust ball bearing is arranged between the cushion block (3) and one end of the bolt pull rod (2), so that when the bolt pull rod rotates, the cushion block (3) and the pressure seat (4) will not be driven to rotate, and at the same time, the thrust ball bearing, the cushion block (3) and the pressure seat (4) only bear the axial force of the bolt pull rod (2).

5. The intelligent gluing and pressure-maintaining method for wooden structure beams based on the characteristics of wooden materials according to claim 1, characterized in that: The cushion block (3) is a high-toughness cushion block (3) made of a resin material or a high-toughness rubber material. The high-toughness cushion block (3) undergoes elastic strain during the compression process, and enables the high-toughness cushion block (3) to compensate for the deformation of the wooden board (5) during the entire gluing pressure holding time, so that the stress of the wooden board (5) is within the elastic yield stress range of the wood, without causing the wooden board (5) to undergo plastic deformation.

6. The intelligent gluing and pressure-maintaining method for wooden structure beams based on the characteristics of wooden materials according to claim 1, characterized in that: The pressure system (B) also includes a secondary slide (15), a secondary slide (16), a main slide (17), and a main slide (18); the main slide (17) is slidably arranged on the main slide (18), the secondary slide (15) is fixed on the main slide (17), the secondary slide (16) is slidably arranged on the secondary slide (15), and the main slide (18) is perpendicular to the secondary slide (15); the motor (13) is directly arranged on the secondary slide (16), or the motor (13) is arranged on the end robot arm in the multi-degree-of-freedom robot arm, and the multi-degree-of-freedom robot arm is arranged on the secondary slide (16).

7. The intelligent gluing and pressure-maintaining method for wooden structure beams based on the characteristics of wooden materials according to claim 1, characterized in that: The pressure application system (B) also includes a first positioning probe (12) arranged in the locking sleeve (11) and a second positioning probe (10) arranged at the torsion end. The first positioning probe (12) and the second positioning probe (10) transmit displacement signals to each other to ensure accurate alignment of the locking sleeve (11) and the bolt pull rod (2).

8. The torque AI calculation module (14) according to claim 8, characterized in that: The torsion AI calculation module (14) is embedded with a database of elastic yield stress intervals of different wood materials obtained through experimental tests.

9. The intelligent gluing and pressure-maintaining method for wooden structure beams based on the characteristics of wooden materials according to claim 1, characterized in that: There are a plurality of wooden boards (5) which are symmetrical up and down with respect to the horizontal plane where the axis of the bolt pull rod (2) is located.

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