A wood sawing device and method of operation thereof
By combining the application of paraffin film and hydrophobic silicone powder on the saw blade surface, the problem of deviation when the wood sawing device is cutting wood with high moisture content is solved, achieving stability of the cutting trajectory and temperature control, thereby improving cutting efficiency and wood quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-22
- Publication Date
- 2026-03-31
AI Technical Summary
Existing wood sawing equipment causes the wood to bend slightly and irreversibly due to the stress caused by the difference between dry and wet conditions when cutting wood with high moisture content. This causes the wood to deviate from the preset cutting trajectory, resulting in a deviation problem.
A paraffin film is applied to the saw blade surface using a coating component. The latent heat of phase change of paraffin absorbs heat and reduces the temperature of the cutting surface. The hydrophobic silica powder absorbs moisture, reducing the evaporation of moisture from the wood. Combined with an electronically controlled telescopic device and a guide wheel system, the wood cutting trajectory is ensured to be stable.
It effectively prevents wood from deviating from the preset trajectory during cutting, reduces the temperature of the cutting surface by 30-50℃, reduces the rate of moisture evaporation, avoids annealing and softening of the saw blade and secondary deformation of the wood, and improves cutting stability.
Smart Images

Figure CN121535818B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wood cutting technology, specifically to a wood sawing device and its operating method that prevents deviation. Background Technology
[0002] Timber sawing is a core sub-process in timber cutting and processing, and it is also the most historically significant and widely applicable basic process in the timber processing industry. Essentially, it uses the cutting action of the saw blade to separate logs, boards, and timber into semi-finished or finished products that meet size and shape requirements. It is the first crucial step in transforming timber from natural raw materials into industrial timber. However, when existing timber sawing equipment is used with broad-leaved, fast-growing trees such as poplar, willow, and birch, the high moisture content of the wood causes the heat generated by the friction of the saw blade during cutting to accelerate localized moisture evaporation. This leads to internal dry-wet stress in the wood, causing minute and irreversible bending during the cutting process. This directly causes the wood to deviate from the preset cutting trajectory, resulting in deviation.
[0003] The existing technology has the following problems:
[0004] Existing wood sawing equipment, when cutting wood with high moisture content, causes the wood to bend slightly and irreversibly due to the stress caused by the difference between dry and wet conditions inside the wood. This causes the wood to deviate from the preset cutting trajectory, resulting in the problem of wood deviation. Summary of the Invention
[0005] This invention provides a wood sawing device and its operation method that prevent deviation, in order to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:
[0007] A wood sawing device for preventing deviation includes a sawing body and a conveying table. A drive motor is fixedly connected to the bottom of one side of the inner wall of the sawing body, and a synchronous wheel is fixedly connected to the output end of the drive motor. The end of the synchronous wheel is rotatably connected to the inner wall of the sawing body. A saw blade is drivenly connected to the outer wall of the synchronous wheel, and coating components are provided on both sides of one end of the outer wall of the saw blade.
[0008] The inner wall of the sawing body is rotatably connected to several guide wheels, and the outer wall of the guide wheels is slidably connected to the outer wall of the saw blade.
[0009] A further improvement of the technical solution of the present invention is that: the coating component includes a coating roller brush slidably connected to both sides of one end of the outer wall of the saw blade, and a support frame is fixedly connected to both ends of the inner wall of the coating roller brush. Several mutually symmetrical protrusions are fixedly connected to the center of the inner wall of the coating roller brush. A liquid-guiding cotton core is slidably connected to the end of the protrusion. The two ends of the outer wall of the liquid-guiding cotton core are slidably connected to the inner wall of the support frame. A limit frame is inserted into both ends of the outer wall of the liquid-guiding cotton core. A first cap and a second cap are fixedly connected to one end of the outer wall of the two limit frames respectively. A fixing groove is opened on the side of the outer wall of the first cap and the second cap near the limit frame. The inner wall of the fixing groove is slidably connected to one side of the outer wall of the support frame.
[0010] A further improvement of the technical solution of the present invention is that: a liquid guiding tube is inserted into the inner wall of the liquid guiding cotton core, and the outer wall of the liquid guiding tube penetrates and is fixedly connected to the inner wall of the second cap, and a liquid distributor is fixedly connected to the end of the liquid guiding tube, a stabilizing frame is fixedly connected to the outer wall of the liquid distributor, and one side of the outer wall of the stabilizing frame is fixedly connected to the inner wall of the sawing body, and the inner wall of the stabilizing frame is fixedly connected to the outer wall of the second cap.
[0011] A further improvement of the technical solution of the present invention is that: the input end of the liquid dispenser is fixedly connected to a liquid delivery tube, and one end of the outer wall of the liquid delivery tube is fixedly connected to a liquid control valve, while the end of the liquid delivery tube is fixedly connected to a liquid storage tank.
[0012] A further improvement of the technical solution of the present invention is that: the outer wall of the liquid storage chamber is fixedly connected to one side of the outer wall of the sawing body, and a number of electric heating tubes are fixedly connected to the top of the inner wall of the liquid storage chamber, while an inlet pipe is fixedly connected to one end of the top of the liquid storage chamber.
[0013] A further improvement of the technical solution of the present invention is that a support rod is fixedly connected to the side of the outer wall of the first cover away from the limiting frame, and the end of the support rod is fixedly connected to the inner wall of the sawing body.
[0014] A further improvement of the technical solution of the present invention is that: a waste port is provided at the center of the bottom of the inner wall of the sawing body, and a blower is fixedly connected to the end of the inner wall of the sawing body away from the waste port; an electric roller brush is fixedly connected to the end of the inner wall of the sawing body near the waste port, and the inner wall of the electric roller brush is in contact with the outer wall of the saw blade.
[0015] A further improvement of the technical solution of the present invention is that: one end of the inner wall of the conveying platform is rotatably connected to an electric lead screw, and the end of the inner wall of the conveying platform away from the electric lead screw is fixedly connected to a guide rod; the outer wall of the electric lead screw is threadedly connected to a placement platform, and one end of the inner wall of the placement platform is slidably connected to the outer wall of the guide rod; the top of the placement platform is slidably connected to several mutually symmetrical moving platforms, and the inner cavity of the placement platform is rotatably connected to several auxiliary arms between the moving platforms.
[0016] A further improvement of the technical solution of the present invention is that: an electrically controlled telescopic plate is fixedly connected to the center of the inner wall of the moving platform, and a limit rivet is fixedly connected to one side of the outer wall of the electrically controlled telescopic plate; electrically controlled telescopic rods are fixedly connected to both sides of the outer wall of the moving platform, and a push plate is fixedly connected to the output end of each of the two electrically controlled telescopic rods.
[0017] A method for preventing deviation during timber sawing, using the aforementioned anti-deviation timber sawing device, is as follows:
[0018] S1: By placing the wood on the surface of the placement table, the wood is fixed by the moving table set on top of it, along with the limiting rivets and the push plate. Then, the electric screw set on one end of the inner wall of the conveyor table drives the placement table and the wood to move in the direction of the sawing body.
[0019] S2: By setting a drive motor at the bottom of one side of the inner wall of the sawing body, and setting a synchronous wheel at the output end of the drive motor, and cooperating with several guide wheels set on the inner wall of the sawing body, the saw blade cuts the wood along the track between the guide wheels under the guidance of the synchronous wheel;
[0020] S3: By setting up coating rollers on both sides of one end of the outer wall of the saw blade, the mixed liquid in the storage tank is discharged into the distributor through the infusion pipe. After passing through the liquid guide pipe set at the output end of the distributor, the mixed liquid is discharged into the liquid guide cotton core. After being squeezed by the protrusions set on the inner wall of the coating roller, the mixed liquid is soaked in the coating roller, thereby achieving the coating of the saw blade surface.
[0021] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:
[0022] This invention provides a wood sawing device and its operating method to prevent deviation. By setting several symmetrical protrusions on the inner wall of the coating roller, the high-speed rotating protrusions squeeze the surface of the liquid-guiding cotton core, causing the mixture soaked in the liquid-guiding cotton core to be squeezed out under the influence of external pressure and fall into the inner wall of the coating roller. This allows the coating roller to adhere a layer of paraffin film to the surface of the high-speed rotating saw blade. This further solves the problem of traditional wood sawing devices causing wood with high moisture content to bend slightly and irreversibly under the influence of the internal dry-wet difference stress, thus causing the wood to deviate from the preset cutting trajectory and resulting in wood deviation. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the present invention;
[0024] Figure 2 This is a schematic diagram of the conveyor platform structure of the present invention;
[0025] Figure 3This is a schematic diagram of the mobile station structure of the present invention;
[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the sawing body of the present invention;
[0027] Figure 5 This is a schematic diagram of the guide wheel structure of the present invention;
[0028] Figure 6 This is a schematic diagram of the synchronous pulley structure of the present invention;
[0029] Figure 7 This is a schematic diagram of the stabilizer structure of the present invention;
[0030] Figure 8 This is a schematic diagram of the liquid guide tube structure of the present invention;
[0031] Figure 9 This is a schematic diagram of the unfolded structure of the applicator roller of the present invention;
[0032] Figure 10 This is a schematic diagram of the cross-sectional structure of the application roller of the present invention.
[0033] In the diagram: 1. Saw body; 2. Conveyor table; 3. Drive motor; 4. Synchronous pulley; 5. Saw blade; 6. Guide wheel; 7. Coating roller; 8. Support frame; 9. Protrusion; 10. Liquid guiding cotton core; 11. Limiting frame; 12. First cap; 13. Second cap; 14. Fixing groove; 15. Liquid guiding pipe; 16. Liquid distributor; 17. Stabilizer; 18. Infusion pipe; 19. Control valve; 20. Liquid storage tank; 21. Heating element; 22. Liquid inlet pipe; 23. Support rod; 24. Waste port; 25. Blower; 26. Electric roller brush; 27. Electric lead screw; 28. Guide rod; 29. Placement table; 30. Moving table; 31. Auxiliary arm; 32. Electrically controlled telescopic plate; 33. Limiting rivet; 34. Electrically controlled telescopic rod; 35. Push plate. Detailed Implementation
[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0035] like Figures 1 to 10As shown in the embodiment of the present invention, a wood sawing device for preventing deviation includes a sawing body 1 and a conveying table 2. A drive motor 3 is fixedly connected to the bottom of one side of the inner wall of the sawing body 1, and a synchronous wheel 4 is fixedly connected to the output end of the drive motor 3. The end of the synchronous wheel 4 is rotatably connected to the inner wall of the sawing body 1. A saw blade 5 is drivenly connected to the outer wall of the synchronous wheel 4, and a coating component is provided on both sides of one end of the outer wall of the saw blade 5. A plurality of guide wheels 6 are rotatably connected to the inner wall of the sawing body 1, and the outer wall of the guide wheels 6 is slidably connected to the outer wall of the saw blade 5. The coating component... The component includes an application roller brush 7 slidably connected to both sides of one end of the outer wall of the saw blade 5. Support frames 8 are fixedly connected to both ends of the inner wall of the application roller brush 7. Several symmetrical protrusions 9 are fixedly connected to the center of the inner wall of the application roller brush 7. A liquid-guiding cotton core 10 is slidably connected to the end of each protrusion 9. Both ends of the outer wall of the liquid-guiding cotton core 10 are slidably connected to the inner wall of the support frame 8. Limiting frames 11 are inserted into both ends of the outer wall of the liquid-guiding cotton core 10. A first cap 12 and a second cap 13 are fixedly connected to one end of the outer wall of each of the two limiting frames 11, respectively. A fixing groove 14 is provided on the outer wall of the cover 13 near the limiting frame 11. The inner wall of the fixing groove 14 is slidably connected to one side of the outer wall of the support frame 8. A liquid guiding tube 15 is inserted into the inner wall of the liquid guiding cotton core 10, and the outer wall of the liquid guiding tube 15 penetrates and is fixedly connected to the inner wall of the second cover 13. A liquid distributor 16 is fixedly connected to the end of the liquid guiding tube 15. A stabilizing frame 17 is fixedly connected to the outer wall of the liquid distributor 16, and one side of the outer wall of the stabilizing frame 17 is fixedly connected to the inner wall of the sawing body 1. The inner wall of the stabilizing frame 17 is fixedly connected to the outer wall of the second cover 13. The input end of the liquid dispenser 16 is fixedly connected to the infusion tube 18, and one end of the outer wall of the infusion tube 18 is fixedly connected to the liquid control valve 19. The end of the infusion tube 18 is fixedly connected to the liquid storage tank 20. The outer wall of the liquid storage tank 20 is fixedly connected to one side of the outer wall of the sawing body 1. Several electric heating tubes 21 are fixedly connected to the top of the inner wall of the liquid storage tank 20. One end of the top of the liquid storage tank 20 is fixedly connected to the inlet pipe 22. The outer wall of the first cap 12 is fixedly connected to the side away from the limiting frame 11, and the end of the support rod 23 is fixedly connected to the inner wall of the sawing body 1.
[0036] During operation, a drive motor 3 is installed at the bottom of one side of the inner wall of the sawing body 1, and a synchronous wheel 4 (which is a synchronous belt pulley, similar in principle to the operation of a conveyor belt, and is considered existing technology) is installed at the output end of the drive motor 3. Since the inner wall of the sawing body 1 is provided with several guide wheels 6, the saw blade 5 is installed on the surface of the guide wheels 6 and the synchronous wheel 4, and the saw blade 5 is kept taut. Since the inner wall of the saw blade 5 is provided with several tooth marks, when the drive motor 3 drives the synchronous wheel 4 to rotate, the tooth blocks on the surface of the synchronous wheel 4 are embedded in the tooth marks, and the saw blade 5 is pushed to rotate rapidly between the synchronous wheel 4 and the guide wheel 6. When the conveyor table 2 starts the electric lead screw 27 (which is composed of a motor and a lead screw, and is considered existing technology), the placement table 29 and the wood move toward the high-speed rotating saw blade 5, and the wood is cut by the saw blade 5.
[0037] It should be further explained that when dealing with broad-leaved, fast-growing trees such as poplar, willow, and birch, the high moisture content of the wood causes the heat generated by the friction of the saw blade 5 during cutting to accelerate local moisture evaporation. This leads to moisture-dry stress within the wood, causing minute and irreversible bending during the cutting process, directly causing the wood to deviate from the preset cutting trajectory. To prevent this deviation when cutting such wood, a coating roller 7 is installed on both sides of one end of the outer wall of the saw blade 5, and support frames 8 are installed at both ends of the inner wall of the coating roller 7. Since one side of the outer wall of the two support frames 8 is respectively embedded in the fixing groove 14 set on one side of the first cover 12 and the second cover 13, and the outer wall of the first cover 12 is located away from the support frame 8, A support rod 23 is provided, and the end of the support rod 23 is fixed to the inner wall of the sawing body 1. At the same time, a stabilizing frame 17 is provided on the outer wall of the second cover 13, and one side of the outer wall of the stabilizing frame 17 is also fixed to the inner wall of the sawing body 1. Thus, as the saw blade 5 rotates at high speed, the frictional force drives the coating rollers 7 on both sides to rotate synchronously. Meanwhile, a liquid storage tank 20 is provided on one side of the outer wall of the sawing body 1. Using the liquid inlet pipe 22 provided at the top end of the liquid storage tank 20, a mixture of paraffin wax and hydrophobic silica powder in a ratio of 10:1 is poured into the liquid storage tank 20. Since several electric heating tubes 21 are provided at the top of the inner wall of the liquid storage tank 20, the electric heating tubes 21 are used to continuously heat the paraffin wax in the mixture to prevent it from mixing. The paraffin in the mixture solidifies in the storage tank 20. A delivery pipe 18 is installed at the bottom of the storage tank 20. Activating the control valve 19 at one end of the delivery pipe 18 allows the mixture to flow into the distributor 16 at its end. Since both output ends of the distributor 16 are equipped with guide pipes 15, the mixture entering the distributor 16 is discharged into the guide cotton core 10 along the guide pipes 15 at both ends. (The guide cotton core 10 is made of degreased cotton to prevent paraffin from adhering to it. Because the mixture of paraffin and hydrophobic silica powder contains small particles, the guide cotton core 10 also filters these particles, preventing them from adhering to the surface of the saw blade 5.) (Damaging the cut surface of the wood) As the mixture continues to be discharged, it completely soaks the liquid-guiding cotton core 10. At this time, the saw blade 5 drives the two coating rollers 7 to rotate at high speed. By setting several symmetrical protrusions 9 on the inner wall of the coating rollers 7, the high-speed rotating protrusions 9 squeeze the surface of the liquid-guiding cotton core 10, causing the mixture soaked in the liquid-guiding cotton core 10 to be squeezed out under the influence of external pressure and fall into the inner wall of the coating rollers 7. Under the action of centrifugal force, the mixture is evenly distributed on the coating rollers 7. (Because the material of the coating rollers 7 is high-density wool felt, it not only has oleophilic properties, but also the pores of the high-density wool felt are in a network-like interconnected structure, which can quickly allow the mixture to penetrate. At the same time, wool has a low thermal conductivity (about 0).(0.38 W / (m・K)) can slow down the heat loss of paraffin wax and avoid the problem of rapid solidification of the mixture under the high-speed rotation of the coating roller 7. As the mixture penetrates, a layer of paraffin wax film is attached to the surface of the high-speed rotating saw blade 5 by the coating roller 7 (since the coating roller 7 does not directly contact the tooth marks of the saw blade 5, the mixture applied to the surface of the saw blade 5 continues to move towards the tooth marks under the action of centrifugal force until it solidifies on the surface of the tooth marks). As the saw blade 5 with the paraffin wax film is separated from the sawing body 1 and is about to cut the wood, the paraffin wax on the surface of the saw blade 5 is completely solidified under the high-speed rotation of the saw blade 5. When the saw blade 5 cuts the wood, the paraffin wax reduces the cutting resistance between the saw blade 5 and the wood, making the rotation trajectory of the saw blade 5 smoother. At the same time, the heat generated by the friction between the saw blade 5 and the wood (when the saw blade 5 cuts the wood without paraffin wax, the temperature of the cut surface can reach 110 to 120°C) is also reduced. At 30℃, the paraffin wax adhering to the surface of the saw blade 5 melts rapidly. Due to the latent heat absorption mechanism of the crystalline (quasi-crystalline) phase transition during the melting process of paraffin wax, the solidified paraffin wax molecules have low potential energy, while the liquid paraffin wax molecules have significantly increased potential energy due to increased spacing and greater freedom of movement. This allows the heat generated by the friction between the saw blade 5 and the wood to be absorbed by the mixture during the melting process, converting the heat into an increase in molecular potential energy. This continuously lowers the temperature of the wood cutting surface, with a temperature drop of 30 to 50℃. This not only prevents the saw blade 5 from annealing and softening due to high temperatures but also significantly reduces the rate of moisture evaporation from the wood cutting surface. This further solves the problem of traditional wood sawing devices causing small and irreversible bending of the wood under the influence of internal wet-dry stress when cutting wood with high moisture content, leading to deviation from the preset cutting trajectory and causing the wood to run off-track.
[0038] It should be further explained that, due to the solidification process of the mixture applied to the surface of saw blade 5, the paraffin wax will be inclined and adhered during the centrifugal force. When cutting wood, the paraffin wax not only cools the cutting surface during the melting process, but the melted paraffin wax liquid also contains hydrophobic silica powder, which helps to collect the wood chips. At the same time, the hydrophobic silica powder physically adsorbs the moisture generated during wood cutting and discharges it along with the wood chips, keeping the wood cutting surface dry. This avoids the problem of the wood continuously losing moisture during continuous cutting, which would cause secondary deformation of the wood under the influence of the heated saw blade 5.
[0039] It should be reiterated that by setting a limiting frame 11 on the outer wall of the first cover 12 and the second cover 13 near the fixing groove 14, the limiting frame 11 supports both ends of the liquid guiding cotton core 10, preventing the liquid guiding cotton core 10 from deforming under the continuous soaking of the mixed liquid and the long-term squeezing of the protrusion 9, which would cause a large amount of mixed liquid to be discharged, thereby contaminating the internal parts of the device.
[0040] A waste inlet 24 is provided at the center of the bottom of the inner wall of the sawing body 1. A blower 25 is fixedly connected to the end of the inner wall of the sawing body 1 away from the waste inlet 24. An electric roller brush 26 is fixedly connected to the end of the inner wall of the sawing body 1 near the waste inlet 24. The inner wall of the electric roller brush 26 contacts the outer wall of the saw blade 5. An electric lead screw 27 is rotatably connected to one end of the inner wall of the conveyor table 2. A guide rod 28 is fixedly connected to the end of the inner wall of the conveyor table 2 away from the electric lead screw 27. A placement table 29 is threadedly connected to the outer wall of the electric lead screw 27. One end of the inner wall of the platform 29 is slidably connected to the outer wall of the guide rod 28. Several mutually symmetrical movable platforms 30 are slidably connected to the top of the platform 29, and several auxiliary arms 31 are rotatably connected between the movable platforms 30 in the inner cavity of the platform 29. An electrically controlled telescopic plate 32 is fixedly connected to the center of the inner wall of the movable platform 30, and a limit rivet 33 is fixedly connected to one side of the outer wall of the electrically controlled telescopic plate 32. Electrically controlled telescopic rods 34 are fixedly connected to both sides of the outer wall of the movable platform 30, and a push plate 35 is fixedly connected to the output end of each of the two electrically controlled telescopic rods 34.
[0041] During operation, an electric roller brush 26 is installed at one end of the bottom of the inner wall of the sawing body 1 to clean the saw blade 5 surface of wood chips that are attached due to static electricity or melted paraffin. A waste outlet 24 is installed at the center of the bottom of the inner wall of the sawing body 1 to discharge the wood chip residue cleaned by the electric roller brush 26.
[0042] Further explanation is needed. A guide rod 28 is installed at one end of the inner wall of the conveyor table 2, which limits the placement table 29. An electric lead screw 27 is installed at the end of the inner wall of the conveyor table 2 away from the guide rod 28. Activating the electric lead screw 27 moves the placement table 29 and the wood placed on its surface towards the sawing body 1. Several symmetrically arranged moving platforms 30 are installed on the top of the placement table 29, controlling the position of the wood on the placement table 29. Several auxiliary arms 31 (existing technology) are installed between the moving platforms within the cavity of the placement table 29, pushing the wood to rotate on the surface of the placement table 29, facilitating cutting at various angles. An electrically controlled extension is installed at the center of the inner wall of the moving platform 30. The telescopic plate 32 (here, the electrically controlled telescopic plate 32 is driven by a motor to drive a lead screw, controlling the telescopic plate inside the moving table 30 to move, which is the prior art) is provided with a limiting rivet 33 on one side of the outer wall of the electrically controlled telescopic plate 32. The limiting rivet 33 is used to fix the surface of the wood to prevent the wood from shifting under stress during cutting. The electrically controlled telescopic rods 34 (here, the electrically controlled telescopic rods 34 are the prior art) are provided at both ends of the outer wall of the moving table 30, and a push plate 35 is provided at the output end of the electrically controlled telescopic rods 34. When the limiting rivet 33 fixes the surface of the wood, the electrically controlled telescopic rod 34 pushes the push plate 35 to contact the cut surface of the wood, and the interaction force between the limiting rivet 33 and the push plate 35 fixes the wood a second time, making the wood more stable during cutting.
[0043] It needs to be reiterated that, since the surface temperature of the saw blade 5 is high after cutting the wood, when it is moved back to the position of the coating roller brush 7, the surface temperature of the saw blade 5 has not completely dissipated. By setting a blower 25 on the inner wall of the sawing body 1 away from the waste outlet 24, the blower 25 is used to quickly solidify the mixture adhering to the surface of the saw blade 5. This avoids the problem that the mixture will splash inside the device under the influence of the high-speed rotating saw blade 5 before the saw blade 5 has completely cooled down, making it difficult for the mixture to adhere to the surface of the saw blade 5. Since the saw blade 5 adopts a bimetallic composite process, the tooth material is made of high-speed steel HSS, which is not easy to soften and break the teeth under repeated hot and cold environments (meaning that the saw blade 5 has not completely cooled down naturally before being rapidly cooled by the influence of the blower 25). The back material is made of high-strength spring steel 65Mn, which has excellent toughness, elasticity and fatigue resistance, and a low coefficient of thermal expansion, which can offset the thermal stress generated by the teeth and prevent the saw blade 5 from bending and deforming as a whole.
[0044] A method for preventing deviation during timber sawing, using the aforementioned anti-deviation timber sawing device, is as follows:
[0045] S1: By placing the wood on the surface of the placement table 29, the moving table 30 set on its top is used to fix the wood with the limiting rivet 33 and the push plate 35. Then, the electric screw 27 set on one end of the inner wall of the conveying table 2 drives the placement table 29 and the wood to move towards the sawing body 1.
[0046] S2: By setting a drive motor 3 at the bottom of one side of the inner wall of the sawing body 1, and setting a synchronous wheel 4 at the output end of the drive motor 3, and cooperating with several guide wheels 6 set on the inner wall of the sawing body 1, the saw blade 5 cuts the wood along the track between the guide wheels 6 under the guidance of the synchronous wheel 4.
[0047] S3: By setting up coating rollers 7 on both sides of one end of the outer wall of the saw blade 5, the mixed liquid in the storage tank 20 is discharged into the distributor 16 through the infusion pipe 18. After passing through the liquid guide pipe 15 set at the output end of the distributor 16, the mixed liquid is discharged into the liquid guide cotton core 10. After being squeezed by the protrusions 9 set on the inner wall of the coating roller 7, the mixed liquid is soaked in the coating roller 7, thereby achieving coating on the surface of the saw blade 5.
[0048] The working principle of this anti-deviation wood sawing device and its operation method will be explained in detail below.
[0049] like Figures 1 to 10As shown, a drive motor 3 is installed at the bottom of one side of the inner wall of the sawing body 1, and a synchronous wheel 4 is installed at the output end of the drive motor 3. Since the inner wall of the sawing body 1 is provided with several guide wheels 6, the saw blade 5 is installed on the surface of the guide wheels 6 and the synchronous wheel 4, and the saw blade 5 is in a taut state. Since the inner wall of the saw blade 5 is provided with several tooth marks, when the drive motor 3 drives the synchronous wheel 4 to rotate, the tooth blocks on the surface of the synchronous wheel 4 are embedded in the tooth marks, and the saw blade 5 is pushed to rotate rapidly between the synchronous wheel 4 and the guide wheel 6. When the conveyor table 2 starts the electric screw 27, the placement table 29 and the wood move towards the high-speed rotating saw blade 5, and the wood is cut by the saw blade 5. A coating roller brush 7 is provided on both sides of one end of the outer wall of the saw blade 5. Support frames 8 are provided at both ends of the inner wall of the coating roller 7. One side of the outer wall of each support frame 8 is embedded in a fixing groove 14 provided on one side of the first cap 12 and the second cap 13, respectively. A support rod 23 is provided on the side of the outer wall of the first cap 12 away from the support frame 8, and the end of the support rod 23 is fixed to the inner wall of the sawing body 1. Simultaneously, a stabilizing frame 17 is provided on the outer wall of the second cap 13, and one side of the stabilizing frame 17 is also fixed to the inner wall of the sawing body 1. Thus, as the saw blade 5 rotates at high speed, the friction forces push the coating roller 7 on both sides to rotate synchronously. At the same time, a liquid storage tank 20 is provided on one side of the outer wall of the sawing body 1, and an inlet pipe 22 is provided at one end of the top of the liquid storage tank 20 to apply paraffin wax and chlorine. A mixture of silica gel powder and water in a 10:1 ratio is poured into a storage tank 20. Several heating elements 21 are installed on the top of the inner wall of the storage tank 20 to continuously heat the paraffin in the mixture, preventing it from solidifying. An infusion pipe 18 is installed at the bottom of the storage tank 20. A control valve 19 is activated at one end of the infusion pipe 18, allowing the mixture to flow into a distributor 16 at its end. Since both output ends of the distributor 16 are equipped with guide pipes 15, the mixture entering the distributor 16 is discharged into a cotton core 10 through the guide pipes 15. With the continuous discharge of the mixture, the cotton core 10 is completely soaked with the mixture. As the saw blade 5 drives the two coating rollers 7 to rotate at high speed, several symmetrical protrusions 9 are set on the inner wall of the coating rollers 7. The high-speed rotating protrusions 9 squeeze the surface of the liquid-guiding cotton core 10, causing the mixture soaked in the liquid-guiding cotton core 10 to be squeezed out under the influence of external pressure and fall into the inner wall of the coating rollers 7. Under the action of centrifugal force, the mixture is evenly distributed in the coating rollers 7. As the mixture penetrates, a layer of paraffin film is attached to the surface of the high-speed rotating saw blade 5. As the saw blade 5 with the paraffin film is separated from the sawing body 1 and is about to cut the wood, the paraffin on the surface of the saw blade 5 is completely solidified under the high-speed rotation of the saw blade 5. When the saw blade 5 cuts the wood...By utilizing paraffin wax to reduce the cutting resistance between the saw blade 5 and the wood, the rotation trajectory of the saw blade 5 becomes smoother. Simultaneously, the heat generated by the friction between the saw blade 5 and the wood causes the paraffin wax adhering to the surface of the saw blade 5 to melt rapidly. Due to the latent heat absorption mechanism of the crystalline (quasi-crystalline) phase transition during the melting process of paraffin wax, the solidified paraffin wax molecules have lower potential energy, while the liquid paraffin wax molecules, due to increased spacing and greater freedom of movement, have significantly increased potential energy. This allows the heat generated by the friction between the saw blade 5 and the wood to be absorbed by the melting mixture, converting the heat into an increase in molecular potential energy. This continuously lowers the temperature of the wood cutting surface, with a temperature reduction of 30 to 50°C. This not only prevents the saw blade 5 from annealing and softening due to high temperatures but also significantly reduces the rate of moisture evaporation from the wood cutting surface. Furthermore, it solves the problem of traditional wood sawing devices causing slight and irreversible bending of the wood under the influence of internal wet-dry stress when cutting wood with high moisture content, leading to deviation from the preset cutting trajectory and causing wood misalignment.
[0050] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A wood sawing device with anti-derailment, comprising a sawing body (1) and a conveyor table (2), characterized in that: The bottom of one side of the inner wall of the sawing body (1) is fixedly connected with a transmission motor (3), the output end of the transmission motor (3) is fixedly connected with a synchronous wheel (4), the end of the synchronous wheel (4) is rotatably connected with the inner wall of the sawing body (1), the outer wall of the synchronous wheel (4) is drivingly connected with a saw blade (5), and the outer wall of one end of the saw blade (5) is provided with a smearing assembly. The inner wall of the sawing body (1) is rotatably connected with a plurality of guide wheels (6), and the outer wall of the guide wheel (6) is slidingly connected with the outer wall of the saw blade (5). The smearing assembly comprises a smearing roller brush (7) slidingly connected on both sides of one end of the outer wall of the saw blade (5), both ends of the inner wall of the smearing roller brush (7) are fixedly connected with a support frame (8), the center of the inner wall of the smearing roller brush (7) is fixedly connected with a plurality of mutually symmetrical protrusions (9), the end of the protrusion (9) is slidingly connected with a liquid guiding cotton core (10), both ends of the outer wall of the liquid guiding cotton core (10) are slidingly connected with the inner wall of the support frame (8), both ends of the outer wall of the liquid guiding cotton core (10) are inserted into a limiting frame (11), one end of the outer wall of the limiting frame (11) is fixedly connected with a first cover (12) and a second cover (13), respectively, a fixing groove (14) is formed in the outer wall of the first cover (12) and the second cover (13) on the side close to the limiting frame (11), and the inner wall of the fixing groove (14) is slidingly connected with one side of the outer wall of the support frame (8). The inner wall of the liquid guiding cotton core (10) is inserted with a liquid guiding pipe (15), the outer wall of the liquid guiding pipe (15) penetrates and is fixedly connected with the inner wall of the second cover (13), the end of the liquid guiding pipe (15) is fixedly connected with a liquid distributor (16), the outer wall of the liquid distributor (16) is fixedly connected with a stabilizing frame (17), one side of the outer wall of the stabilizing frame (17) is fixedly connected with the inner wall of the sawing body (1), and the inner wall of the stabilizing frame (17) is fixedly connected with the outer wall of the second cover (13). The input end of the liquid distributor (16) is fixedly connected with a liquid conveying pipe (18), one end of the outer wall of the liquid conveying pipe (18) is fixedly connected with a liquid control valve (19), the end of the liquid conveying pipe (18) is fixedly connected with a liquid storage bin (20), and the liquid storage bin (20) is provided with a mixed liquid obtained by mixing paraffin and hydrophobic silica powder in a ratio of 10:
1.
2. A wood sawing device according to claim 1, characterized in that: The outer wall of the liquid storage bin (20) is fixedly connected with one side of the outer wall of the sawing body (1), and the top of the inner wall of the liquid storage bin (20) is fixedly connected with a plurality of electric heating pipes (21), and one end of the top of the liquid storage bin (20) is fixedly connected with a liquid inlet pipe (22).
3. A wood sawing device according to claim 2, characterized in that: The outer wall of the first cover (12) is fixedly connected with a support rod (23) on the side away from the limiting frame (11), and the end of the support rod (23) is fixedly connected with the inner wall of the sawing body (1).
4. A wood sawing device according to claim 3, characterized in that: The center of the inner wall bottom of the sawing main body (1) is provided with a waste port (24), and the end of the inner wall of the sawing main body (1) away from the waste port (24) is fixedly connected with a blower (25), and the end of the inner wall of the sawing main body (1) close to the waste port (24) is fixedly connected with an electric rolling brush device (26), and the inner wall of the electric rolling brush device (26) is in contact with the outer wall of the saw blade (5).
5. A wood sawing device according to claim 4, characterized in that: One end of the inner wall of the conveying table (2) is rotatably connected with an electric screw rod (27), and the end of the inner wall of the conveying table (2) away from the electric screw rod (27) is fixedly connected with a guide rod (28), the outer wall of the electric screw rod (27) is threadedly connected with a placing table (29), and one end of the inner wall of the placing table (29) is slidably connected with the outer wall of the guide rod (28), a plurality of auxiliary arms (31) are rotatably connected between the moving tables (30) in the inner cavity of the placing table (29).
6. A wood sawing device according to claim 5, characterized in that: The center of the inner wall of the moving table (30) is fixedly connected with an electric control telescopic plate (32), and one side of the outer wall of the electric control telescopic plate (32) is fixedly connected with a limiting rivet (33), the outer wall of the moving table (30) is fixedly connected with an electric control telescopic rod (34) on both sides, and the output ends of the two electric control telescopic rods (34) are fixedly connected with a pushing plate (35).
7. A method for preventing deviation during timber sawing, wherein the method employs the anti-deviation timber sawing device described in claim 6, characterized in that: The method is as follows: S1: by placing the wood on the surface of the placing table (29), using the moving table (30) provided on the top, cooperating with the limiting rivet (33) and the pushing plate (35) to fix the wood, then using the electric screw rod (27) provided on one end of the inner wall of the conveying table (2) to drive the placing table (29) and the wood to move towards the sawing main body (1); S2: by setting a transmission motor (3) at the bottom of one side of the inner wall of the sawing main body (1), and setting a synchronous wheel (4) at the output end of the transmission motor (3), cooperating with the plurality of guide wheels (6) provided on the inner wall of the sawing main body (1), so that the saw blade (5) is guided by the synchronous wheel (4) to move along the track between the guide wheels (6), and the wood is cut; S3: by setting the smearing rolling brush (7) on both sides of one end of the outer wall of the saw blade (5), the mixed liquid in the liquid storage bin (20) is discharged into the liquid distributor (16) through the liquid delivery pipe (18), and the mixed liquid is discharged into the liquid guide cotton core (10) through the liquid guide pipe (15) provided at the output end of the liquid distributor (16), and the mixed liquid is extruded by the protrusions (9) provided on the inner wall of the smearing rolling brush (7), so that the mixed liquid is impregnated on the smearing rolling brush (7), thereby achieving the smearing on the surface of the saw blade (5).
Citation Information
Patent Citations
Cooling device of plate grid dividing device
CN105344979A
Automatic waxing device for cooling and lubricating saw blade
CN211332428U