High-precision adjusting device of wood cutting band saw and using method

Abstract

The invention discloses a high-precision adjusting device of a wood cutting band saw and a using method, and relates to the technical field of cutting band saucers. The high-precision adjusting device comprises a damping base, a saw table and a mounting frame are arranged above the damping base, a machine body is arranged on the inner side of the mounting frame, and a lower saw wheel and an upper saw wheel are arranged in the machine body; connecting shafts are arranged at the upper end and the lower end of the machine body correspondingly, a second motor is arranged below the mounting frame, a first mounting groove is formed in the upper end of the saw table, a connecting base is arranged in the first mounting groove, a feeding plate is arranged above the connecting base, and a sliding groove is formed in the upper end of the connecting base. According to the band saw, the machine body is rotationally connected, the angle of the saw blade is changed by rotating the machine body, a fixed saw material can be horizontally moved and adjusted in the cutting process, the saw blade matched with the adjustment can meet the requirement for cutting the saw material at different angles, and the using effect of the band saw is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting band saws, and particularly to a high-precision adjustment device and a usage method for a wood cutting band saw. Background Art

[0002] A band saw refers to a sawing machine that uses an endless ring-shaped saw blade to surround two saw wheels and makes continuous rotary motion in the same direction for sawing. The band saw machine has high efficiency and a small saw kerf, and is the most widely used main sawing machine in Chinese lumber processing equipment. It is used for sawing logs into materials, splitting board timbers, sawing large board skins into thin boards or small squares, and can also be used to cut rough edge boards into finished edge boards or square timbers.

[0003] Chinese Patent Publication No. is CN220636498U, and the authorization announcement date is March 22, 2024. A high-precision adjustment device for a vertical band sawing machine includes a band sawing machine body, an operation platform, an adjustment disk, an adjustment angle structure, and an adjustment structure. An operation platform is arranged in the middle of the band sawing machine body. A cavity is opened inside the operation platform, and an adjustment groove is opened on the upper surface of the operation platform. The adjustment groove communicates with the cavity inside the operation platform. An adjustment disk is arranged above the adjustment groove of the operation platform, and an adjustment angle structure is arranged below the adjustment disk. In this utility model, by providing an adjustment angle structure, the power output end of the first servo motor rotates to drive the bevel gear to rotate. The bevel gear rotation drives the gear disk to rotate. The gear disk rotation drives the rotating rod to rotate. When the rotating rod rotates, it drives the adjustment disk to rotate. When the adjustment disk rotates, it rotates to a certain angle under the comparison of the scale table, so that it is no longer necessary to measure the angle before sawing the material, effectively avoiding errors in the sawing angle of the material during sawing.

[0004] The saw blade of the existing band saw is fixedly installed and mostly can only perform straight sawing. When sawing the material at a certain angle, the angle of the saw blade cannot be adjusted. It is necessary for personnel to measure the angle and then fix the material before sawing. Multiple measurements increase the workload, resulting in a single sawing effect of the band saw, reducing the usage effect of the band saw, and not meeting the usage requirements. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-precision adjustment device and a usage method for a wood cutting band saw, so as to solve the problem mentioned in the above background art that the saw blade of the existing band saw is fixedly installed and mostly can only perform straight sawing. When sawing the material at a certain angle, the angle of the saw blade cannot be adjusted. It is necessary for personnel to measure the angle and then fix the material before sawing. Multiple measurements increase the workload, resulting in a single sawing effect of the band saw, reducing the usage effect of the band saw, and not meeting the usage requirements.

[0006] To achieve the above object, the present invention provides the following technical solution: A high-precision adjustment device for a wood cutting band saw, including a shock-absorbing base, above which a saw table and a mounting frame are provided, and the mounting frame is arranged on one side of the saw table. Support frames are provided below both the saw table and the mounting frame. A machine body is arranged inside the mounting frame. A lower saw wheel and an upper saw wheel are arranged inside the machine body, and the lower saw wheel is rotationally connected to the machine body. A first motor is arranged on one side of the machine body, and the first motor is connected to the machine body by screws. The output end of the first motor is connected to the lower saw wheel. A saw blade is arranged between the lower saw wheel and the upper saw wheel, and the saw blade is in transmission connection with the lower saw wheel and the upper saw wheel. Connecting shafts are arranged at the upper and lower ends of the machine body, and the connecting shafts are connected to the machine body by screws. The connecting shafts are rotationally connected to the mounting frame. A second motor is arranged below the mounting frame, and the second motor is connected to the mounting frame by screws. The output end of the second motor is connected to one end of the lower connecting shaft. A first installation groove is arranged at the upper end of the saw table. A connecting seat is arranged inside the first installation groove, and the connecting seat is slidably connected to the saw table. An upper feeding plate is arranged above the connecting seat. A sliding groove is arranged at the upper end of the connecting seat. A sliding rail is arranged inside the sliding groove, and the sliding rail is slidably connected to the connecting seat. The sliding rail is arranged below the upper feeding plate, and the sliding rail is connected to the upper feeding plate by screws. A second electric push rod is arranged on one side of the connecting seat, and the second electric push rod is fixedly connected to the connecting seat and the sliding rail.

[0007] Preferably, a third installation groove is arranged on the inner wall of the machine body. A movable block is arranged inside the third installation groove, and the movable block is slidably connected to the machine body. The movable block is arranged on one side of the upper saw wheel, and the upper saw wheel is rotationally connected to the movable block. A third electric push rod is arranged inside the third installation groove, and the third electric push rod is arranged above the movable block. The third electric push rod is fixedly connected to the machine body and the movable block.

[0008] Preferably, four limiting rollers are arranged inside the machine body. The four limiting rollers are rotationally connected to the machine body. The four limiting rollers are arranged on both sides of the saw blade, and the limiting rollers are in contact with the saw blade.

[0009] Preferably, a tension measuring device is arranged inside the machine body, and the tension measuring device is connected to the machine body by screws. The tension measuring device is arranged on one side of the saw blade, and the tension measuring device is in contact with the saw blade.

[0010] Preferably, a ball screw is arranged inside the first installation groove, and the ball screw is threadedly connected through the connecting seat. The ball screw is rotationally connected to the saw table. A third motor is arranged below the saw table, and the third motor is connected to the saw table by screws. A driving cavity is arranged inside one end of the saw table. A belt drive assembly is arranged inside the driving cavity, and the belt drive assembly is respectively connected to one end of the ball screw and the output end of the third motor.

[0011] Preferably, a second installation groove is provided at the upper end of the feeding plate. There are two second installation grooves. A baffle is provided above the feeding plate. There are two baffles. The lower end of the baffle extends into the interior of the second installation groove, and the baffle is slidably connected to the feeding plate. A first electric push rod is provided on one side of the feeding plate, and the first electric push rod is connected to the feeding plate by screws. The first electric push rod is provided on one side of the baffle, and the telescopic end of the first electric push rod is fixedly connected to the baffle.

[0012] Preferably, a telescopic cavity is provided inside the baffle. A pressing plate is provided on one side of the baffle. A connecting frame is provided above the pressing plate, and the connecting frame is connected to the pressing plate by screws. One end of the connecting frame extends into the interior of the telescopic cavity, and the connecting frame is slidably connected to the baffle. A fourth electric push rod is provided inside the telescopic cavity, and the fourth electric push rod is connected to the baffle by screws. The fourth electric push rod is provided below the connecting frame, and the telescopic end of the fourth electric push rod is connected to the connecting frame.

[0013] A method for using a high-precision adjustment device of a wood cutting band saw includes the following steps:

[0014] Step 1: Place the saw material on the feeding plate. Drive the first electric push rod according to the size of the saw material to drive the baffle to move along the second installation groove. The baffle contacts the saw material and applies a thrust to place the cutting part of the saw material on one side of the saw blade. Drive the fourth electric push rod to drive the connecting frame to lift and lower, and lower the pressing plate to closely contact the saw material to fix the saw material placed on the feeding plate;

[0015] Step 2: Start the first motor to drive the lower saw wheel to rotate, and drive the saw blade to perform continuous rotary motion as the lower saw wheel rotates;

[0016] Step 3: Start the third motor to drive the belt pulley transmission assembly to move. As the belt pulley transmission assembly rotates, drive the ball screw to rotate. As the ball screw rotates, drive the connecting seat to move along the first installation groove to move the fixed saw material towards the saw blade, and the running saw blade contacts the saw material to achieve straight sawing;

[0017] Step 4: Start the second motor to drive the connecting shaft to rotate. As the connecting shaft rotates, drive the machine body to rotate horizontally to change the angle of the saw blade. When sawing, drive the second electric push rod to drive the feeding plate to move along the chute. As the feeding plate moves, drive the fixed saw material to horizontally expand and contract to change the distance between the saw material and the saw blade, and cooperate with the saw blade with a changed angle to perform sawing at different angles and arcs;

[0018] Step 5: Use a tension measuring device to measure the tension of the saw blade. Drive the third electric push rod according to the measured saw blade tension data to drive the movable block to rise and fall in the third installation groove. As the movable block rises and falls, change the installation height of the upper saw wheel to tighten or loosen the saw blade and accurately adjust the tension of the saw blade.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. Through the settings of the mounting frame, the machine body, the second motor, the connecting shaft, the feeding plate, the connecting seat, the slide rail, the second electric push rod and the chute, the machine body is rotatably connected to the mounting frame through the connecting shaft. The second motor drives the connecting shaft to rotate. As the connecting shaft rotates, it drives the machine body to rotate horizontally, changing the angle of the saw blade. The inclined saw blade performs oblique cutting on the saw material. The feeding plate and the connecting seat are slidably connected through the slide rail and the chute. The second electric push rod drives the feeding plate to move along the chute. As the feeding plate moves, it drives the fixed saw material to horizontally expand and contract, changing the distance between the saw material and the saw blade. The saw blade with a changed angle can perform arc cutting;

[0021] 2. Through the settings of the second installation groove, the baffle plate, the first electric push rod, the connecting frame, the pressing plate and the fourth electric push rod, the first electric push rod drives the baffle plate to move along the second installation groove. The baffle plate contacts the saw material and applies a thrust to adjust the cutting position of the saw material placed on the feeding plate and can also limit the saw material on one side. The fourth electric push rod drives the connecting frame to descend, and the dropped pressing plate is in close contact with the saw material to fix the saw material placed on the feeding plate, ensuring the stability of the saw material cutting process;

[0022] 3. Through the settings of the tension measuring device, the limiting roller, the third installation groove, the movable block and the third electric push rod, the third electric push rod drives the movable block to rise and fall in the third installation groove. As the movable block rises and falls, change the installation height of the upper saw wheel to tighten or loosen the saw blade and adjust the tension of the saw blade. The limiting roller is in contact with the saw blade to limit the continuously rotating saw blade to prevent the saw blade from swaying. The tension measuring device measures the tension of the saw blade and can accurately adjust the tension of the saw blade. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the connection structure diagram of the machine body and the mounting frame of the present invention;

[0025] Figure 3 is the Figure 1 local enlarged view of Area A of the present invention;

[0026] Figure 4 is the connection structure diagram of the feeding plate and the connecting seat of the present invention;

[0027] Figure 5 Structural diagram of the upper saw wheel and the machine body of the present invention;

[0028] Figure 6 Connection relationship diagram of the connecting seat and the saw table of the present invention;

[0029] Figure 7 Connection relationship diagram of the saw table, the feeding plate and the baffle of the present invention.

[0030] In the figure: 1, shock-absorbing base; 2, saw table; 3, mounting frame; 4, support frame; 5, machine body; 6, first motor; 7, saw blade; 8, feeding plate; 9, first installation groove; 10, ball screw; 11, second motor; 12, connecting shaft; 13, lower saw wheel; 14, upper saw wheel; 15, tension measuring device; 16, limiting roller; 17, second installation groove; 18, baffle; 19, first electric push rod; 20, connecting frame; 21, pressing plate; 22, connecting seat; 23, slide rail; 24, second electric push rod; 25, third installation groove; 26, movable block; 27, third electric push rod; 28, chute; 29, third motor; 30, drive cavity; 31, belt drive assembly; 32, telescopic cavity; 33, fourth electric push rod. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Please refer to Figures 1-7, an embodiment provided by the present invention: a high-precision adjustment device for a wood cutting band saw, including a shock-absorbing base 1. Above the shock-absorbing base 1, there is a saw table 2 and a mounting frame 3, and the mounting frame 3 is arranged on one side of the saw table 2. Below both the saw table 2 and the mounting frame 3, there are support frames 4. Inside the mounting frame 3, there is a machine body 5. Inside the machine body 5, there is a lower saw wheel 13 and an upper saw wheel 14, and the lower saw wheel 13 is rotationally connected to the machine body 5. On one side of the machine body 5, there is a first motor 6, and the first motor 6 is connected to the machine body 5 by screws. The output end of the first motor 6 is connected to the lower saw wheel 13. Between the lower saw wheel 13 and the upper saw wheel 14, there is a saw blade 7, and the saw blade 7 is in transmission connection with the lower saw wheel 13 and the upper saw wheel 14. At the upper and lower ends of the machine body 5, there are connecting shafts 12, and the connecting shafts 12 are connected to the machine body 5 by screws. The connecting shafts 12 are rotationally connected to the mounting frame 3. Below the mounting frame 3, there is a second motor 11, and the second motor 11 is connected to the mounting frame 3 by screws. The output end of the second motor 11 is connected to one end of the lower connecting shaft 12. At the upper end of the saw table 2, there is a first mounting groove 9. Inside the first mounting groove 9, there is a connecting seat 22, and the connecting seat 22 is slidably connected to the saw table 2. Above the connecting seat 22, there is a loading plate 8. At the upper end of the connecting seat 22, there is a sliding groove 28. Inside the sliding groove 28, there is a sliding rail 23, and the sliding rail 23 is slidably connected to the connecting seat 22. The sliding rail 23 is arranged below the loading plate 8, and the sliding rail 23 is connected to the loading plate 8 by screws. On one side of the connecting seat 22, there is a second electric push rod 24, and the second electric push rod 24 is fixedly connected to the connecting seat 22 and the sliding rail 23.

[0033] During use: Place the saw material on the loading plate 8, then adjust the position of the saw material, place the sawing part of the saw material on one side of the saw blade 7, turn on the first motor 6 to drive the lower saw wheel 13 to rotate. As the lower saw wheel 13 rotates, it drives the saw blade 7 to move, move the saw material towards the saw blade 7, and the saw material contacts the moving saw blade 7 for straight sawing; when performing oblique sawing on the saw material, turn on the second motor 11 to drive the connecting shaft 12 to rotate. As the connecting shaft 12 rotates, it drives the machine body 5 to rotate horizontally, changing the angle of the saw blade 7. The obliquely placed saw blade 7 performs oblique sawing on the saw material. During sawing, drive the second electric push rod 24 to drive the loading plate 8 to move along the sliding groove 28. As the loading plate 8 moves, it drives the fixed saw material to horizontally expand and contract, changing the distance between the saw material and the saw blade 7, and can perform arc sawing in cooperation with the saw blade 7 with a changed angle.

[0034] Please refer to Figure 2 and Figure 5, a third mounting groove 25 is provided on the inner wall of the machine body 5. An active block 26 is arranged inside the third mounting groove 25, and the active block 26 is slidably connected to the machine body 5. The active block 26 is arranged on one side of the upper saw wheel 14, and the upper saw wheel 14 is rotatably connected to the active block 26. A third electric push rod 27 is arranged inside the third mounting groove 25, and the third electric push rod 27 is arranged above the active block 26. The third electric push rod 27 is fixedly connected to the machine body 5 and the active block 26. A limiting roller 16 is arranged inside the machine body 5. There are four limiting rollers 16, and the four limiting rollers 16 are rotatably connected to the machine body 5. The four limiting rollers 16 are arranged on both sides of the saw blade 7, and the limiting rollers 16 are in contact with the saw blade 7. A tension measuring device 15 is arranged inside the machine body 5, and the tension measuring device 15 is connected to the machine body 5 by screws. The tension measuring device 15 is arranged on one side of the saw blade 7, and the tension measuring device 15 is in contact with the saw blade 7. The third electric push rod 27 drives the active block 26 to lift in the third mounting groove 25. As the active block 26 lifts, the mounting height of the upper saw wheel 14 is changed, the saw blade 7 is tightened or loosened, and the tension of the saw blade 7 is adjusted. The limiting rollers 16 are in contact with the saw blade 7 to limit the continuously rotating saw blade 7 and prevent the saw blade 7 from swaying. The tension measuring device 15 measures the tension of the saw blade 7 and can accurately adjust the tension of the saw blade 7.

[0035] Please refer to Figure 1 , Figure 4 and Figure 6 , a ball screw 10 is arranged inside the first mounting groove 9, and the ball screw 10 is threadedly connected through the connecting seat 22. The ball screw 10 is rotatably connected to the saw table 2. A third motor 29 is arranged below the saw table 2, and the third motor 29 is connected to the saw table 2 by screws. A driving cavity 30 is arranged inside one end of the saw table 2. A belt drive assembly 31 is arranged inside the driving cavity 30, and the belt drive assembly 31 is respectively connected to one end of the ball screw 10 and the output end of the third motor 29. The third motor 29 drives the belt drive assembly 31 to move. As the belt drive assembly 31 rotates, the ball screw 10 is driven to rotate. As the ball screw 10 rotates, the connecting seat 22 is driven to move along the first mounting groove 9, and the fixed saw material is moved towards the saw blade 7 for sawing.

[0036] Please refer to Figure 1 , Figure 3 and Figure 7, a second installation groove 17 is provided at the upper end of the loading plate 8. There are two second installation grooves 17. A baffle 18 is provided above the loading plate 8. There are two baffles 18. The lower end of the baffle 18 extends into the interior of the second installation groove 17, and the baffle 18 is slidably connected to the loading plate 8. A first electric push rod 19 is provided on one side of the loading plate 8, and the first electric push rod 19 is connected to the loading plate 8 by screws. The first electric push rod 19 is provided on one side of the baffle 18, and the telescopic end of the first electric push rod 19 is fixedly connected to the baffle 18. A telescopic cavity 32 is provided inside the baffle 18. A pressing plate 21 is provided on one side of the baffle 18. A connecting frame 20 is provided above the pressing plate 21, and the connecting frame 20 is connected to the pressing plate 21 by screws. One end of the connecting frame 20 extends into the interior of the telescopic cavity 32, and the connecting frame 20 is slidably connected to the baffle 18. A fourth electric push rod 33 is provided inside the telescopic cavity 32, and the fourth electric push rod 33 is connected to the baffle 18 by screws. The fourth electric push rod 33 is provided below the connecting frame 20, and the telescopic end of the fourth electric push rod 33 is connected to the connecting frame 20. The first electric push rod 19 drives the baffle 18 to move along the second installation groove 17. The baffle 18 contacts the saw material and applies a thrust to adjust the sawing position of the saw material placed on the loading plate 8. It can also limit the position on one side of the saw material. Drive the fourth electric push rod 33 to drive the connecting frame 20 to descend. The dropped pressing plate 21 is in close contact with the saw material to fix the saw material placed on the loading plate 8 and ensure the stability of the sawing process of the saw material.

[0037] A usage method of a high-precision adjustment device for a wood cutting band saw includes the following steps:

[0038] Step 1: Place the saw material on the loading plate 8. According to the size of the saw material, drive the first electric push rod 19 to drive the baffle 18 to move along the second installation groove 17. The baffle 18 contacts the saw material and applies a thrust to place the cutting part position of the saw material on one side of the saw blade 7. Drive the fourth electric push rod 33 to drive the connecting frame 20 to rise and fall, drop the pressing plate 21 to be in close contact with the saw material, and fix the saw material placed on the loading plate 8;

[0039] Step 2: Start the first motor 6 to drive the lower saw wheel 13 to rotate. As the lower saw wheel 13 rotates, it drives the saw blade 7 to perform continuous rotary motion;

[0040] Step 3: Start the third motor 29 to drive the belt pulley transmission assembly 31 to move. As the belt pulley transmission assembly 31 rotates, it drives the ball screw 10 to rotate. As the ball screw 10 rotates, it drives the connecting seat 22 to move along the first installation groove 9, move the fixed saw material towards the saw blade 7, and the running saw blade 7 contacts the saw material to achieve straight sawing;

[0041] Step 4: Start the second motor 11 to drive the connecting shaft 12 to rotate. As the connecting shaft 12 rotates, it drives the machine body 5 to rotate horizontally, changing the angle of the saw blade 7. When sawing, drive the second electric push rod 24 to drive the feeding plate 8 to move along the sliding groove 28. As the feeding plate 8 moves, it drives the fixed saw material to expand and contract horizontally, changing the distance between the saw material and the saw blade 7. The saw blade 7 with a changed angle can be used for sawing at different angles and arcs;

[0042] Step 5: Use the tension measuring device 15 to measure the tension of the saw blade 7 for a period of time. According to the measured tension data of the saw blade 7, drive the third electric push rod 27 to drive the movable block 26 to lift in the third installation groove 25. As the movable block 26 lifts, change the installation height of the upper saw wheel 14 to tighten or loosen the saw blade 7, and accurately adjust the tension of the saw blade 7.

[0043] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision adjustment device for a wood-cutting band saw, comprising a shock-absorbing base (1), characterized in that: Above the shock-absorbing base (1), there is a saw table (2) and a mounting frame (3), and the mounting frame (3) is arranged on one side of the saw table (2). Below the saw table (2) and the mounting frame (3), there are support frames (4). Inside the mounting frame (3), there is a machine body (5). Inside the machine body (5), there is a lower saw wheel (13) and an upper saw wheel (14), and the lower saw wheel (13) is rotationally connected to the machine body (5). On one side of the machine body (5), there is a first motor (6), and the first motor (6) is connected to the machine body (5) by screws. The output end of the first motor (6) is connected to the lower saw wheel (13). Between the lower saw wheel (13) and the upper saw wheel (14), there is a saw blade (7), and the saw blade (7) is in transmission connection with the lower saw wheel (13) and the upper saw wheel (14). At the upper and lower ends of the machine body (5), there are connecting shafts (12), and the connecting shafts (12) are connected to the machine body (5) by screws. The connecting shafts (12) are rotationally connected to the mounting frame (3). Below the mounting frame (3), there is a second motor (11), and the second motor (11) is connected to the mounting frame (3) by screws. The output end of the second motor (11) is connected to one end of the lower connecting shaft (12). At the upper end of the saw table (2), there is a first mounting groove (9). Inside the first mounting groove (9), there is a connecting seat (22), and the connecting seat (22) is slidably connected to the saw table (2). Above the connecting seat (22), there is a loading plate (8). At the upper end of the connecting seat (22), there is a sliding groove (28). Inside the sliding groove (28), there is a sliding rail (23), and the sliding rail (23) is slidably connected to the connecting seat (22). The sliding rail (23) is arranged below the loading plate (8), and the sliding rail (23) is connected to the loading plate (8) by screws. On one side of the connecting seat (22), there is a second electric push rod (24), and the second electric push rod (24) is fixedly connected to the connecting seat (22) and the sliding rail (23).

2. The high-precision adjustment device for a wood cutting band saw according to claim 1, characterized in that: On the inner wall of the machine body (5), there is a third mounting groove (25). Inside the third mounting groove (25), there is a movable block (26), and the movable block (26) is slidably connected to the machine body (5). The movable block (26) is arranged on one side of the upper saw wheel (14), and the upper saw wheel (14) is rotationally connected to the movable block (26). Inside the third mounting groove (25), there is a third electric push rod (27), and the third electric push rod (27) is arranged above the movable block (26). The third electric push rod (27) is fixedly connected to the machine body (5) and the movable block (26).

3. The high-precision adjustment device for a wood cutting band saw according to claim 2, wherein: Inside the machine body (5), there are limiting rollers (16). There are four limiting rollers (16), and the four limiting rollers (16) are rotationally connected to the machine body (5). The four limiting rollers (16) are arranged on both sides of the saw blade (7), and the limiting rollers (16) are in contact with the saw blade (7).

4. The high-precision adjustment device for a wood cutting band saw according to claim 3, wherein: Inside the body (5), a tension measuring device (15) is provided, and the tension measuring device (15) is connected to the body (5) by screws. The tension measuring device (15) is arranged on one side of the saw blade (7) and is in contact with the saw blade (7).

5. The high-precision adjustment device for a wood cutting band saw according to claim 4, characterized in that: Inside the first installation groove (9), a ball screw (10) is provided, and the ball screw (10) is threadedly connected through the connecting seat (22). The ball screw (10) is rotatably connected to the saw table (2). Below the saw table (2), a third motor (29) is provided, and the third motor (29) is connected to the saw table (2) by screws. Inside one end of the saw table (2), a driving cavity (30) is provided. Inside the driving cavity (30), a belt drive assembly (31) is provided, and the belt drive assembly (31) is respectively connected to one end of the ball screw (10) and the output end of the third motor (29).

6. The high-precision adjustment device of a wood cutting band saw according to claim 5, characterized in that: At the upper end of the loading plate (8), two second installation grooves (17) are provided. Above the loading plate (8), two baffles (18) are provided. The lower end of the baffle (18) extends into the second installation groove (17), and the baffle (18) is slidably connected to the loading plate (8). On one side of the loading plate (8), a first electric push rod (19) is provided, and the first electric push rod (19) is connected to the loading plate (8) by screws. The first electric push rod (19) is arranged on one side of the baffle (18), and the telescopic end of the first electric push rod (19) is fixedly connected to the baffle (18).

7. The high-precision adjustment device for a wood cutting band saw according to claim 6, characterized in that: Inside the baffle (18), a telescopic cavity (32) is provided. On one side of the baffle (18), a pressing plate (21) is provided. Above the pressing plate (21), a connecting frame (20) is provided, and the connecting frame (20) is connected to the pressing plate (21) by screws. One end of the connecting frame (20) extends into the telescopic cavity (32), and the connecting frame (20) is slidably connected to the baffle (18). Inside the telescopic cavity (32), a fourth electric push rod (33) is provided, and the fourth electric push rod (33) is connected to the baffle (18) by screws. The fourth electric push rod (33) is arranged below the connecting frame (20), and the telescopic end of the fourth electric push rod (33) is connected to the connecting frame (20).

8. The usage method of a high-precision adjustment device for a wood cutting band saw according to claim 7, characterized in that, Including the following steps: Step 1: Place the saw material on the loading plate (8). According to the size of the saw material, drive the first electric push rod (19) to drive the baffle (18) to move along the second installation groove (17). The baffle (18) contacts the saw material and applies a thrust to place the cutting part of the saw material on one side of the saw blade (7). Drive the fourth electric push rod (33) to drive the connecting frame (20) to lift and lower, and lower the pressing plate (21) to be in close contact with the saw material to fix the saw material placed on the loading plate (8). Step 2: Start the first motor (6) to drive the lower saw wheel (13) to rotate. As the lower saw wheel (13) rotates, it drives the saw blade (7) to perform continuous rotary motion. Step 3: Turn on the third motor (29) to drive the pulley transmission assembly (31) to move. As the pulley transmission assembly (31) rotates, it drives the ball screw (10) to rotate. As the ball screw (10) rotates, it drives the connecting seat (22) to move along the first installation groove (9), moving the fixed saw material towards the saw blade (7). The running saw blade (7) contacts the saw material to achieve straight sawing. Step 4: Turn on the second motor (11) to drive the connecting shaft (12) to rotate. As the connecting shaft (12) rotates, it drives the machine body (5) to rotate horizontally, changing the angle of the saw blade (7). When sawing, drive the second electric push rod (24) to drive the feeding plate (8) to move along the sliding groove (28). As the feeding plate (8) moves, it drives the fixed saw material to expand and contract horizontally, changing the distance between the saw material and the saw blade (7). The saw blade (7) with a changed angle can be used for sawing at different angles and arcs. Step 5: Use the tension measuring device (15) to measure the tension of the saw blade (7) after using it for a period of time. According to the measured tension data of the saw blade (7), drive the third electric push rod (27) to drive the movable block (26) to rise and fall in the third installation groove (25). As the movable block (26) rises and falls, it changes the installation height of the upper saw wheel (14), tightening or loosening the saw blade (7) to accurately adjust the tension of the saw blade (7).

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