Intelligent peeling and preserving device for root carving wood

Abstract

The present application relates to the technical field of wood preservation, and discloses a kind of intelligent peeling and preserving device for root sculpture wood, the wood intelligent peeling and preserving device includes device frame, the front side of device frame is fixedly provided with support table, and installation seat is rotatably arranged on support table, and sliding seat is slidably arranged on installation seat;The middle part of sliding seat is fixedly provided with spherical sleeve, spherical sleeve is rotatably arranged in ball seat, and motor three is fixedly arranged at the bottom of ball seat, and the output end of motor three is connected with grinding wheel for wood peeling, and driving assembly for moving ball seat is arranged below sliding seat.The wood intelligent peeling and preserving device can adjust the angle of ball seat by driving assembly, and the tool can be adjusted, which is convenient for adjusting the surface shape of wood to operate peeling, and there is no residual bark and phloem fiber on the surface of wood after operation, and there is no obvious knife mark in wood part, and the texture integrity retention rate is ≥95%.

Description

Technical Field

[0001] This invention relates to the field of wood preservation technology, specifically to an intelligent debarking and preservation device for root carving wood. Background Technology

[0002] The timing of peeling root carving materials is crucial. Freshly felled wood should undergo preliminary treatment within 24 hours of felling, as the connection between the bark and the wood is loose at this time, reducing the difficulty of peeling. If the wood has been stored for more than 72 hours, it is recommended to soak the roots in clean water for 2-3 days (changing the water daily) to soften the fibers under the bark before peeling. For dry wood with a moisture content below 20%, mechanical assistance should be used for peeling to prevent cracking of the wood.

[0003] After peeling, place the wood in a well-ventilated, shaded area and stack it in a grid pattern (15-20cm between each layer). Maintain an ambient humidity of 40%-60% and a temperature not exceeding 35℃. The drying period should be adjusted according to the type of wood: hardwoods (such as boxwood and sandalwood) require 6-12 months, while softwoods (such as pine and fir) require 3-6 months. During this period, turn the wood over every 2 weeks to prevent one side from dehydrating too quickly.

[0004] Existing debarking machines have non-adjustable blade angles, making it difficult to fully debark complex raw materials. This makes debarking operations inconvenient, requiring manual adjustment of the wood's position and increasing operational difficulty. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent debarking and preservation device for wood used in root carving, so as to solve the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions: A smart wood peeling and preservation device for root carving, the smart wood peeling and preservation device includes a device frame, a support platform fixedly provided on the front side of the device frame, an mounting seat rotatably provided on the support platform, and a sliding seat slidably provided on the mounting seat; The sliding seat has a spherical sleeve fixed in the middle, a spherical seat rotatably arranged inside the spherical sleeve, a motor three fixed at the bottom of the spherical seat, a grinding wheel for peeling wood connected to the output end of the motor three, and a drive assembly for moving the spherical seat is arranged below the sliding seat.

[0007] Furthermore, a U-shaped groove is provided on the support platform and below the mounting base for collecting bark or wood chips. Two side plates are fixedly provided at the bottom of the support platform, and a rectangular groove is provided between the two side plates. The rectangular groove is located above the support platform. One end of the mounting base is provided with a rotating shaft for rotatably connecting with the two side plates, and the other end is fixedly provided with a movable shaft. The side plate is provided with an arc-shaped groove, the movable shaft is slidably connected to the arc-shaped groove, the bottom of the support platform is fixedly provided with a horizontal frame, the horizontal frame is fixedly provided with a guide rail, and a lead screw is provided above the guide rail, which is rotatably connected to the horizontal frame.

[0008] Furthermore, the lead screw has a circular hole, a spring is fixedly installed in the circular hole, a slide rod is fixedly installed at one end of the spring, a top groove is provided on the slide rod, an inclined surface is provided at one end of the top groove, a limiting rod is slidably installed on the inclined surface, and one end of the limiting rod is slidably connected to the inclined surface.

[0009] Furthermore, a limiting protrusion is fixedly provided at the top of the limiting rod, and a groove is provided inside the slider. The groove cooperates with the limiting protrusion to fix the slider. The lead screw has several through holes on its upper part, which are connected to the round holes.

[0010] Furthermore, a handle is connected to the front end of the lead screw, and an L-shaped locking groove is provided on the handle. A lever is rotatably provided at the front end of the slide rod, and the lever cooperates with the L-shaped locking groove.

[0011] Furthermore, a slider is slidably mounted on the guide rail, and a push rod is rotatably mounted on the moving shaft, with the slider and the push rod being rotatably connected.

[0012] Furthermore, the mounting base is symmetrically provided with guide grooves, and two sliding frames are provided on the guide grooves. The sliding frames move within the guide grooves. The sliding frames are provided with connecting grooves, which are slidably connected to the sliding base. One side of the sliding frame is provided with an outer hole, and a second spring is fixedly installed inside the outer hole. A guide rod is fixedly installed on the side wall of the outer hole.

[0013] Furthermore, a rack is fixedly provided at the bottom of the sliding frame, and a gear is engaged on the tooth surface of the rack. A motor for connecting the drive gear is fixedly provided at the bottom of the mounting base.

[0014] Furthermore, an anti-corrosion component is fixedly provided on the sliding seat, and several blowtorches are installed on the anti-corrosion component; The sliding seat has two motors fixedly mounted on both sides. The output end of the motor is fixedly mounted with a threaded rod. A circular plate is threadedly connected to the threaded rod. The circular plate is connected to the end of the spring and slides on the guide rod.

[0015] Furthermore, the drive assembly includes a motor four, a sliding shaft is fixedly provided at the bottom of the housing of the motor three, a side rotating plate is installed on the outside of the sliding shaft, a cylinder is installed at the bottom of the side rotating plate, the output end of the cylinder is rotatably connected to the bottom of the sliding shaft through a bearing, and a waist groove is provided at the front end of the side rotating plate, which is slidably connected to the sliding shaft. The bottom of the sliding seat is fixedly equipped with a motor four, the output end of the motor four is connected to a rotating plate, the front end of the rotating plate is provided with an arc edge U groove, a connecting shaft is rotatably installed in the arc edge U groove, and one end of the connecting shaft is rotatably connected to the side rotating plate.

[0016] The beneficial effects of this invention are: 1. The intelligent wood peeling and anti-corrosion device of the present invention controls the angle of the ball seat through the drive component, which can adjust the blade to match the surface shape of the wood for peeling. After the operation, there is no residual bark and bast fiber on the wood surface, no obvious knife marks in the wood, and the grain integrity retention rate is ≥95%. 2. The intelligent wood peeling and anti-corrosion device of the present invention uses a blowtorch to spray and bake the wood, performing a dual anti-corrosion operation of peeling and baking, which has a good anti-corrosion effect, ensures the overall integrity of the wood, and meets the raw material requirements of root carving. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the intelligent wood peeling and preservation device of the present invention; Figure 2 This is a front view of the intelligent wood peeling and preservation device of the present invention; Figure 3 This is the present invention. Figure 2 Schematic diagram of the cross-sectional structure at point AA; Figure 4 This is the present invention. Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the mounting base of the present invention; Figure 6 This is a schematic diagram of the structure of the device frame of the present invention; Figure 7 This is a partial structural schematic diagram of the handle of the present invention; Figure 8 This is a schematic diagram of the limiting rod of the present invention; Figure 9 This is a schematic diagram of the structure of the sliding seat of the present invention; Figure 10 This is a schematic diagram of the structure of the sliding seat of the present invention; Figure 11 This is the present invention. Figure 10 Enlarged structural diagram at point C; Figure 12 This is a side view of the sliding seat of the present invention; Figure 13 This is the present invention. Figure 12 Enlarged structural diagram at point DD; Figure 14 This is a schematic diagram of the sliding frame of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Device frame; 2. Mounting base; 2-3. Clean water; 3. Sliding seat; 10. Sliding rod; 11. Support platform; 12. U-shaped groove; 13. Side plate; 14. Arc groove; 15. Horizontal frame; 16. Guide rail; 17. Lead screw; 18. Slider; 19. Top rod; 20. Moving shaft; 21. Guide groove; 22. Sliding frame; 23. Rack; 24. Gear; 25. Motor 1; 26. Connecting groove; 27. Outer hole; 28. Spring 2; 29. ​​Guide rod; 30. Motor 2; 31. Anti-corrosion component; 32. Spherical sleeve; 33. Spherical seat; 34. Grinding wheel; 35. Motor three; 36. Motor four; 37. Rotating plate; 38. Side rotating plate; 101. Top groove; 102. Limiting rod; 103. Spring one; 104. Limiting protrusion; 105. Toggle lever; 170. Round hole; 171. L-shaped locking groove; 181. Groove; 301. Threaded rod; 302. Round plate; 351. Sliding shaft; 371. Connecting shaft; 381. Waist groove; 382. Cylinder. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0021] A smart debarking and preservation device for root carving wood, such as Figure 1 , Figure 2 As shown, the intelligent wood peeling and anti-corrosion device is mainly used to peel the wood used as raw material for root carving, so that the old bark on the surface is completely removed. At the same time, it performs preliminary anti-corrosion treatment on the peeled wood to prevent the wood from being infested by insects or rotting during storage, thus ensuring the quality of the root carving raw material.

[0022] The intelligent wood peeling and preservation device includes a device frame 1. The bottom of the device frame 1 can be equipped with casters (not shown in the drawing) to improve the flexibility of the device frame 1. The rear end of the device frame 1 is equipped with a pusher frame to move the device frame 1.

[0023] A support platform 11 is fixedly installed on the front side of the device frame 1. A mounting seat 2 is rotatably provided on the support platform 11, and a sliding seat 3 is slidably provided on the mounting seat 2.

[0024] like Figures 3-6As shown, the support platform 11 is fixedly installed with the device frame 1. A U-shaped groove 12 is provided on the support platform 11 and below the mounting base 2. The U-shaped groove 12 collects the bark or wood chips that fall off during the processing. Two side plates 13 are fixedly provided at the bottom of the support platform 11. A rectangular groove is provided between the two side plates 13. The rectangular groove is located above the support platform 11. The mounting base 2 is rotatably installed in the rectangular groove. The two ends of the rotating shaft used to support the rotation of the mounting base 2 are rotatably connected to the two side plates 13.

[0025] An arc-shaped groove 14 is provided on the side plate 13. A movable shaft 20 is slidably installed in the arc-shaped groove 14. The movable shaft 20 is fixedly connected to the mounting base 2. A top rod 19 is rotatably provided on the movable shaft 20. A horizontal frame 15 is fixedly provided at the bottom of the support platform 11. A guide rail 16 is fixedly provided on the horizontal frame 15. A lead screw 17 is provided above the guide rail 16. The lead screw 17 is rotatably connected to the horizontal frame 15. A slider 18 is slidably provided on the guide rail 16. The slider 18 is rotatably connected to the top rod 19.

[0026] A handle is connected to the front end of the lead screw 17. A round hole 170 is provided inside the lead screw 17. A spring 103 is fixedly installed inside the round hole 170. A slide rod 10 is fixedly connected to one end of the spring 103. A top groove 101 is provided on the slide rod 10. An inclined surface is provided at one end of the top groove 101. A limiting rod 102 is slidably provided on the inclined surface. One end of the limiting rod 102 is slidably engaged with the inclined surface.

[0027] The top of the limiting rod 102 is fixedly connected to a limiting protrusion 104. A groove 181 is provided in the slider 18 to cooperate with a certain limiting protrusion 104, which can limit the position and state of the slider 18.

[0028] Several through holes are provided above the lead screw 17. The through holes penetrate the outer wall of the lead screw 17 and cooperate with the round hole 170. The through holes avoid the threaded position of the lead screw 17.

[0029] like Figure 7 , Figure 8 As shown, an L-shaped locking groove 171 is provided on the handle, and a lever 105 is rotatably connected to the front end of the slide bar 10. The lever 105 is located as shown in the figure. Figure 7 As shown in the diagram, the slider 18 on the lead screw 17 is locked. When the lever 105 moves into the round hole 170, it presses the slide bar 10 and squeezes the spring 103. Then, the lever 105 is pushed into the L-shaped locking groove 171, which fixes the lever 105. The limiting rod 102 slides along the inclined surface until it fits against the top groove 101. At this time, the limiting protrusion 104 is located in the through hole, releasing the locking effect on the slider 18. The lead screw 17 rotates, and the slider 18 can move smoothly to control the rotation of the top rod 19 and adjust the pitch angle of the mounting base 2.

[0030] like Figure 9 , Figure 10, Figure 14 As shown, the mounting base 2 has symmetrically arranged guide grooves 21, and two sliding brackets 22 are provided on the guide grooves 21. The sliding brackets 22 move within the guide grooves 21, and the sliding brackets 22 have connecting grooves 26. The connecting grooves 26 are slidably connected to the sliding base 3. An outer hole 27 is provided on one side of the sliding bracket 22. A spring 28 is fixedly installed inside the outer hole 27, and a guide rod 29 is fixedly connected to the side wall of the outer hole 27.

[0031] A rack 23 is fixedly installed at the bottom of the sliding frame 22. A gear 24 meshes with the tooth surface of the rack 23. The gear 24 is fixedly installed at the output end of the motor 25. The motor 25 is fixed at the bottom of the mounting base 2.

[0032] The motor 25 controls the rotation of the gear 24, which in turn drives the rack 23 to move by meshing with the gear 24. This, in turn, drives the sliding frame 22 on the rack 23 to move within the guide groove 21, thus controlling the movement of the sliding seat 3 on the mounting base 2.

[0033] like Figure 11 , Figure 12 , Figure 13 As shown, an anti-corrosion component 31 is fixedly installed on the sliding seat 3. Several blowtorches are installed on the anti-corrosion component 31. The direction of the blowtorches can be adjusted to spray and bake the wood surface.

[0034] Among them, motor 30 is fixedly installed on both sides of the sliding seat 3. A threaded rod 301 is fixedly connected to the output end of the motor 30. A circular plate 302 is threadedly connected to the threaded rod 301. The circular plate 302 is fixedly connected to the end of the spring 28. The circular plate 302 slides on the guide rod 29. When the motor 30 drives the threaded rod 301 to rotate, the side distance between the sliding seat 3 and the sliding frame 22 can be adjusted.

[0035] The sliding seat 3 has a spherical sleeve 32 fixed in the middle, and a spherical seat 33 is rotatably mounted inside the spherical sleeve 32. A motor 35 is fixed at the bottom of the spherical seat 33. The output end of the motor 35 passes through the spherical seat 33 and is connected to a grinding wheel 34. The grinding wheel 34 grinds the outside of the wood and removes the outer bark. The high-speed rotation of the grinding wheel 34 cuts the surface of the material to remove the surface layer and improve the surface quality. The mechanical cutting action peels off the outer bark containing dust and dirt, and the surface can be preliminarily polished at the same time.

[0036] Furthermore, a sliding shaft 351 is fixedly connected to the bottom of the housing of motor 35. A side rotating plate 38 is installed on the outside of the sliding shaft 351. A cylinder 382 is installed at the bottom of the side rotating plate 38. The output end of the cylinder 382 is rotatably connected to the bottom of the sliding shaft 351 through a bearing. A waist groove 381 is opened at the front end of the side rotating plate 38, and the waist groove 381 is slidably connected to the sliding shaft 351.

[0037] Furthermore, a motor 36 is fixedly installed at the bottom of the sliding seat 3. The output end of the motor 36 is connected to a rotating plate 37. The front end of the rotating plate 37 is provided with an arc-shaped U-groove. A connecting shaft 371 is rotatably installed in the arc-shaped U-groove. One end of the connecting shaft 371 is rotatably connected to a side rotating plate 38. The side rotating plate 38 rotates 0-45 degrees along the axis of the connecting shaft 371 and can swing left and right.

[0038] Specifically, when motor 36 is powered on and started, it drives the rotating plate 37 to rotate horizontally. At this time, the connecting shaft 371 moves with the rotating plate 37. Through the rotational connection between the connecting shaft 371 and the side rotating plate 38, it can be ensured that the side rotating plate 38 always maintains a perpendicular relationship with the sliding shaft 351 during the rotation of the connecting shaft 371. This process can drive the ball seat 33 to rotate horizontally, adjust the grinding wheel 34 to swing left or right, and change the side tilt angle of the grinding wheel 34.

[0039] When the grinding wheel 34 needs to move back and forth, the output end of the cylinder 382 needs to be extended and retracted, which can drive the sliding shaft 351 below the motor 35 to move in the waist groove 381, which can drive the ball seat 33 to rotate forward or backward, and can adjust the pitch angle of the grinding wheel 34.

[0040] By adjusting the processing angle of the grinding wheel 34 using the above control method, and coordinating with different processing positions, it is possible to peel the wood from corners and hard-to-reach areas, making it highly versatile.

[0041] The working principle is as follows: First, adjust the size of the wood to be processed using the following method: Start motor two, which drives the threaded rod to rotate, adjusting the position of the circular plate on the guide rod to accommodate wood of different diameters. After adjusting the distance between the two sliding seats, clamp and fix the wood to be processed between the two sliding seats. Then, according to the curvature of the wood, rotate the screw to adjust the position of the slider on the guide rail. The movement of the slider drives the top rod to push the moving shaft to move in the arc groove, thereby adjusting the pitch angle of the mounting seat so that the mounting seat fits the curvature of the wood. After adjustment, lock the sliding rod to complete the position fixation.

[0042] During processing, starting motor one drives the gear to rotate, and the gear meshes with the rack to move the sliding frame along the guide groove. This, in turn, moves the sliding seat, which clamps the wood, along the mounting base, allowing the entire wood to pass over the grinding wheel. Simultaneously, starting motor three drives the grinding wheel to rotate at high speed, performing peeling and grinding on the wood surface. Depending on the curvature of the wood surface, the left and right swing angle of the grinding wheel can be adjusted by motor four, and the pitch angle of the grinding wheel can be adjusted by a cylinder to ensure that the grinding wheel always keeps in contact with the wood surface, ensuring uniform peeling. During processing, the anti-corrosion component is activated, and a blowtorch is used to absorb and collect the wood chips and bark fragments generated during grinding, reducing processing dust. After peeling is completed, the device can automatically spray an anti-corrosion agent onto the surface of the peeled wood to complete the initial anti-corrosion treatment. After processing is completed, the clamps can be released to remove the processed root carving material.

[0043] By using a blowtorch to quickly scorch the surface of the wood (flame distance 5-8cm), a 0.5-1mm carbonized layer is formed on the surface of the peeled wood. Then, the carbonized residue is cleaned with a wire brush. The powder and dust fall into the U-shaped groove 12 for easy collection. This treatment method can effectively prevent mold spores from attaching and achieve the effect of root carving preservation.

[0044] After accelerated aging testing (30 days at 40℃ and 85% humidity), the surface showed no mold or insect damage, and the bending strength retention rate was ≥85%. Moisture content requirements: The moisture content of the treated wood should be controlled at 12%±3%, and the difference in moisture content between different parts of the same piece should not exceed 5%.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A smart wood peeling and preservation device for root carving, the smart wood peeling and preservation device comprising a device frame (1), characterized in that, The front side of the device frame (1) is fixedly provided with a support platform (11), and a mounting seat (2) is rotatably provided on the support platform (11). A sliding seat (3) is slidably provided on the mounting seat (2). Among them, a spherical sleeve (32) is fixedly provided in the middle of the sliding seat (3), a spherical seat (33) is rotatably provided inside the spherical sleeve (32), a motor three (35) is fixedly provided at the bottom of the spherical seat (33), a grinding wheel (34) for peeling wood is connected to the output end of the motor three (35), and a drive assembly for moving the spherical seat is provided below the sliding seat (3).

2. The intelligent debarking and preservation device for root carving wood according to claim 1, characterized in that, The support platform (11) is provided with a U-shaped groove (12) on the lower side of the mounting base (2) for collecting bark or wood chips. The bottom of the support platform (11) is fixedly provided with two side plates (13), and a rectangular groove is provided between the two side plates (13). The rectangular groove is located above the support platform (11). One end of the mounting base (2) is provided with a rotating shaft for rotatably connecting with the two side plates (13), and the other end is fixedly provided with a moving shaft (20). The side plate (13) is provided with an arc groove (14), the moving shaft (20) is slidably connected to the arc groove (14), the bottom of the support platform (11) is fixedly provided with a horizontal frame (15), the horizontal frame (15) is fixedly provided with a guide rail (16), the guide rail (16) is provided with a lead screw (17) above the guide rail (16), and the lead screw (17) is rotatably connected to the horizontal frame (15).

3. The intelligent debarking and preservation device for root carving wood according to claim 2, characterized in that, The lead screw (17) has a circular hole (170) inside, and a spring (103) is fixedly installed inside the circular hole (170). A slide rod (10) is fixedly installed at one end of the spring (103). A top groove (101) is provided on the slide rod (10). An inclined surface is provided at one end of the top groove (101). A limiting rod (102) is slidably installed on the inclined surface. One end of the limiting rod (102) is slidably connected to the inclined surface.

4. The intelligent debarking and preservation device for root carving wood according to claim 3, characterized in that, The top of the limiting rod (102) is fixedly provided with a limiting protrusion (104), and the slider (18) is provided with a groove (181). The groove (181) and the limiting protrusion (104) cooperate to fix the slider (18). The lead screw (17) has several through holes on its upper part, which are connected to the round hole (170).

5. The intelligent debarking and preservation device for root carving wood according to claim 4, characterized in that, The front end of the lead screw (17) is connected to a handle, and the handle is provided with an L-shaped locking groove (171). A lever (105) is provided at the front end of the slide rod (10), and the lever (105) cooperates with the L-shaped locking groove (171).

6. The intelligent debarking and preservation device for root carving wood according to claim 2, characterized in that, A slider (18) is slidably provided on the guide rail (16), and a push rod (19) is rotatably provided on the moving shaft (20). The slider (18) and the push rod (19) are rotatably connected.

7. The intelligent debarking and preservation device for root carving wood according to claim 1, characterized in that, The mounting base (2) is symmetrically provided with guide grooves (21), and two sliding frames (22) are provided on the guide grooves (21). The sliding frames (22) move within the guide grooves (21). The sliding frames (22) are provided with connecting grooves (26), and the connecting grooves (26) are slidably connected to the sliding base (3). One side of the sliding frame (22) is provided with an outer hole (27), and a second spring (28) is fixedly provided inside the outer hole (27). A guide rod (29) is fixedly provided on the side wall of the outer hole (27).

8. The intelligent debarking and preservation device for root carving wood according to claim 7, characterized in that, The bottom of the sliding frame (22) is fixedly provided with a rack (23), and the tooth surface of the rack (23) is meshed with a gear (24). The bottom of the mounting base (2) is fixedly provided with a motor (25) for connecting the drive gear (24).

9. The intelligent debarking and preservation device for root carving wood according to claim 7, characterized in that, The sliding seat (3) is fixedly provided with an anti-corrosion component (31), and a number of blowtorches are installed on the anti-corrosion component (31); Among them, the sliding seat (3) is fixedly provided with motor two (30) on both sides, and the output end of motor two (30) is fixedly provided with threaded rod (301). A circular plate (302) is threadedly connected to the threaded rod (301). The circular plate (302) is connected to the end of spring two (28). The circular plate (302) slides on the guide rod (29).

10. The intelligent debarking and preservation device for root carving wood according to claim 1, characterized in that, The drive assembly includes a motor four (36), a sliding shaft (351) is fixedly provided at the bottom of the housing of motor three (35), a side rotating plate (38) is installed on the outside of the sliding shaft (351), a cylinder (382) is installed at the bottom of the side rotating plate (38), the output end of the cylinder (382) is rotatably connected to the bottom of the sliding shaft (351) through a bearing, and a waist groove (381) is provided at the front end of the side rotating plate (38), and the waist groove (381) is slidably connected to the sliding shaft (351); Among them, the bottom of the sliding seat (3) is fixedly provided with a motor four (36), the output end of the motor four (36) is connected to a rotating plate (37), the front end of the rotating plate (37) is provided with an arc edge U groove, a connecting shaft (371) is rotatably installed in the arc edge U groove, and one end of the connecting shaft (371) is rotatably connected to the side rotating plate (38).

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