Washing and drying integrated bottle washing machine

Abstract

The utility model discloses a washing and drying integrated bottle washing machine which comprises a water storage tank, one side of the water storage tank is fixedly connected with a control cabinet, the upper surface of the water storage tank is fixedly connected with a protective cover, the outer side wall of the protective cover is provided with a feeding port and a discharging port, the water storage tank is communicated with the protective cover, and the water storage tank is connected with the control cabinet. The upper surface of the protective cover is fixedly connected with a first fixing plate. According to the bottle cleaning device, the first servo motor, the rotating disc, the shifting column, the sliding column, the second fixing plate, the moving column and the like are arranged, the second fixing plate drives the water spraying nozzle to move upwards, the second fixing plate drives the water spraying nozzle and the air spraying nozzle to move into the uncleaned bottle body and the cleaned bottle body respectively, and the water spraying nozzle cleans the interior of the second bottle body; and then the air compressor conveys air into the air nozzle through the second hose, a large amount of water stains remaining in the bottle body after cleaning are blown off from the bottle opening through high-pressure air, the water stains in the bottle body are reduced, and the drying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bottle washing machine technology, and in particular to a bottle washing and drying machine that integrates washing and drying. Background Technology

[0002] The bottle washer-dryer combo is a specialized piece of equipment that integrates automatic cleaning, high-temperature sterilization, and hot air drying functions. It is widely used in food processing, pharmaceuticals, chemicals, and laboratories to effectively ensure the hygiene and safety of containers.

[0003] However, in existing equipment, a large amount of water stains often remain on the inner wall of the bottle after cleaning, resulting in a long drying time and affecting the drying efficiency. Therefore, a bottle washing and drying integrated machine is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a bottle washing and drying integrated machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bottle washing and drying integrated machine, comprising a water storage tank, a control cabinet fixedly connected to one side of the water storage tank, a protective cover fixedly connected to the upper surface of the water storage tank, an inlet and an outlet provided on the outer side wall of the protective cover, the water storage tank communicating with the protective cover, a first fixing plate fixedly connected to the upper surface of the protective cover, a movable structure provided on the first fixing plate, a sliding groove provided on one side of the water storage tank, a filter frame slidably connected in the sliding groove, snap-fit ​​holes provided on the side of the filter frame away from each other, and a quick-release structure provided on the side of the water storage tank away from each other;

[0006] The movable structure includes a rotating shaft rotatably connected to one side of a first fixed plate, a first servo motor fixedly connected to the other side of the first fixed plate, an output shaft of the first servo motor fixedly connected to the other end of the rotating shaft, a rotating disk fixedly connected to one end of the rotating shaft, and a toggle post fixedly connected to one side of the rotating disk.

[0007] As a further description of the above technical solution:

[0008] A sliding column is slidably connected through the upper surface of the protective cover, and a movable column is fixedly connected to the upper surface of the sliding column. A movable groove is opened on one side of the movable column, and the actuating column is slidably connected in the movable groove. A second fixing plate is fixedly connected to the bottom of the sliding column.

[0009] As a further description of the above technical solution:

[0010] A water pump is fixedly connected to the bottom of the water storage tank. A water supply pipe is fixedly connected to the outlet end of the water pump. One end of the water supply pipe passes through one side of the water storage tank and is fixedly connected to a first flexible hose. One end of the first flexible hose passes through one side of the water storage tank and is fixedly connected to a spray nozzle. The spray nozzle passes through and is fixedly connected to one side of a second fixed plate.

[0011] As a further description of the above technical solution:

[0012] An air compressor is fixedly connected to one side of the water storage tank. A second hose is fixedly connected to the air outlet of the air compressor. An air jet nozzle is fixedly connected to one end of the second hose. The air jet nozzle is fixedly connected to one side of the second fixed plate.

[0013] As a further description of the above technical solution:

[0014] The quick-release structure includes a fixed frame fixedly connected to one side of the water tank. A sliding rod is slidably connected through one side of the fixed frame. A snap-fit ​​post is fixedly connected to one end of the sliding rod. The snap-fit ​​post is slidably connected through one side of the water tank and is adapted to a corresponding snap-fit ​​hole. A fork is rotatably connected to the other end of the sliding rod. One side of the fork is in contact with the outer side of the fixed frame.

[0015] As a further description of the above technical solution:

[0016] A spring is fitted on the sliding rod. One end of the spring is fixedly connected to the inside side of the fixed frame, and the other end is fixedly connected to one side of the snap-fit ​​post.

[0017] As a further description of the above technical solution:

[0018] A support rod is fixedly connected to one side of the water storage tank, and a first conveyor platform is fixedly connected to one end of the support rod. One end of the first conveyor platform extends from the feed inlet into the interior of the protective cover. Two first conveyor rollers are rotatably connected inside the first conveyor platform. A first conveyor belt is movably mounted on the two first conveyor rollers. A second servo motor is fixedly connected to one side of the first conveyor platform, and the output shaft of the second servo motor is fixedly connected to one end of one of the first conveyor rollers.

[0019] As a further description of the above technical solution:

[0020] Two fixed brackets are fixedly connected to one side of the water storage tank. A drying box is fixedly connected to the upper surface of the two fixed brackets. Multiple drying lamps are fixedly connected to the top of the drying box. A second conveyor platform is fixedly connected to the bottom of the drying box. One end of the second conveyor platform extends into the interior of the protective cover through the discharge port. Two second conveyor rollers are rotatably connected inside the second conveyor platform. A second conveyor belt is movably mounted on the two second conveyor rollers. A third servo motor is fixedly connected to one side of the second conveyor platform. The output shaft of the third servo motor is fixedly connected to one end of one of the second conveyor rollers.

[0021] As a further description of the above technical solution:

[0022] A fourth servo motor is fixedly connected to the upper surface of the protective cover. A rotating column is fixedly connected to the output shaft of the fourth servo motor. One end of the rotating column is rotatably connected to the inner top of the protective cover. A cross-shaped rotating rod is fixedly connected to the bottom of the rotating column. A fifth servo motor is fixedly connected to each of the four ends of the cross-shaped rotating rod. A rotating frame is fixedly connected to the output shaft of each fifth servo motor. A cylinder is fixedly connected to the side of each rotating frame that is furthest away from it. An arc-shaped clamp is fixedly connected to the piston end of each cylinder. A rubber pad is fixedly connected to one side of each arc-shaped clamp.

[0023] This utility model has the following beneficial effects:

[0024] 1. Compared with existing technologies, this integrated washing and drying bottle washing machine, by setting up a first servo motor, a rotating disk, a toggle column, a sliding column, a second fixed plate, and a moving column, etc., the first servo motor drives the rotating disk to rotate via a rotating shaft, the rotating disk drives the toggle column to rotate, the toggle column drives the moving column to move via a moving groove, the moving column drives the second fixed plate to move via the sliding column, and the second fixed plate drives the water spray nozzle to move upward, so that the second fixed plate drives the water spray nozzle and the air jet nozzle to move to the inside of the unwashed and washed bottles respectively. The water spray nozzle cleans the inside of the second bottle, and then the air compressor delivers air through the second hose into the air jet nozzle. The high-pressure gas blows away a large amount of water stains remaining inside the bottle after cleaning from the bottle mouth, reducing water stains inside the bottle and improving drying efficiency.

[0025] 2. Compared with existing technologies, this bottle washing and drying machine, by setting up a fixed frame, sliding rod, locking post, fork, and spring, allows the fork to be turned after washing. The fork moves the sliding rod, which in turn moves the locking post, causing the locking post to disengage from the locking hole and compress the spring, making it easier for staff to remove the filter frame and clean the impurities inside. Attached Figure Description

[0026] Figure 1This is a first-view three-dimensional structural diagram of a bottle washing machine that integrates washing and drying, as proposed in this utility model.

[0027] Figure 2 This is a second-view three-dimensional structural diagram of a bottle washing and drying machine that integrates washing and drying according to the present invention.

[0028] Figure 3 This is a cross-sectional view of a bottle washing and drying machine that integrates washing and drying according to the present invention.

[0029] Figure 4 This is a schematic diagram of the moving structure of a bottle washing machine that integrates washing and drying, as proposed in this utility model.

[0030] Figure 5 An exploded view of the moving structure of a bottle washing machine that integrates washing and drying, as proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the rotating frame of a bottle washing machine that integrates washing and drying, as proposed in this utility model.

[0032] Figure 7 This is a schematic diagram of the filter frame of a bottle washing machine that integrates washing and drying, as proposed in this utility model.

[0033] Figure 8 This is a schematic diagram of the quick-release structure of a bottle washing machine that integrates washing and drying, as proposed in this utility model.

[0034] Figure 9 This is an exploded view of the quick-release structure of a bottle washing machine that integrates washing and drying, as proposed in this utility model.

[0035] Legend:

[0036] 1. Water storage tank; 2. Control cabinet; 3. Protective cover; 4. Water pump; 5. Water supply pipe; 6. First hose; 7. Spray nozzle; 8. Air compressor; 9. Second hose; 10. Air jet nozzle; 11. First fixed plate; 12. Moving structure; 121. First servo motor; 122. Rotary disk; 123. Actuating column; 124. Sliding column; 125. Second fixed plate; 126. Moving column; 13. Filter frame; 14. Fast Disassembly structure; 141. Fixed frame; 142. Sliding rod; 143. Snap-fit ​​post; 144. Shift fork; 145. Spring; 15. Support rod; 16. First conveyor table; 17. Fixed frame; 18. Drying oven; 19. Drying lamp; 20. Second conveyor table; 21. Fourth servo motor; 22. Rotating column; 23. Cross rotating rod; 24. Fifth servo motor; 25. Rotating frame; 26. Cylinder; 27. Arc-shaped clamp. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Reference Figures 1 to 9This utility model provides a bottle washing and drying integrated machine, comprising a water tank 1, a control cabinet 2 fixedly connected to one side of the water tank 1, the control cabinet 2 being electrically connected to a first servo motor 121, a second servo motor, a third servo motor, a fourth servo motor 21, and a fifth servo motor 24, facilitating the coordinated operation of the first servo motor 121, the second servo motor, the third servo motor, the fourth servo motor 21, and the fifth servo motor 24; a protective cover 3 fixedly connected to the upper surface of the water tank 1, the outer wall of the protective cover 3 having an inlet and an outlet; a support rod 15 fixedly connected to one side of the water tank 1, one end of the support rod 15 being fixedly connected to a first conveyor table 1. 6. One end of the first conveyor table 16 extends from the feed inlet into the interior of the protective cover 3. Two first conveyor rollers are rotatably connected inside the first conveyor table 16. A first conveyor belt is movably mounted on both first conveyor rollers. A second servo motor is fixedly connected to one side of the first conveyor table 16. The output shaft of the second servo motor is fixedly connected to one end of one of the first conveyor rollers. Two fixing frames 17 are fixedly connected to one side of the water tank 1. A drying chamber 18 is fixedly connected to the upper surface of the two fixing frames 17. Multiple drying lamps 19 are fixedly connected to the top interior of the drying chamber 18. A second conveyor table 20 is fixedly connected to the bottom interior of the drying chamber 18. One end of the second conveyor table 20... Extending from the discharge port into the interior of the protective cover 3, the second conveyor platform 20 has two second conveyor rollers rotatably connected inside. A second conveyor belt is movably mounted on both second conveyor rollers. A third servo motor is fixedly connected to one side of the second conveyor platform 20. The output shaft of the third servo motor is fixedly connected to one end of one of the second conveyor rollers. The water tank 1 is connected to the protective cover 3. A fourth servo motor 21 is fixedly connected to the upper surface of the protective cover 3. A rotating column 22 is fixedly connected to the output shaft of the fourth servo motor 21. One end of the rotating column 22 is rotatably connected to the inner top of the protective cover 3. A cross-shaped rotating rod 23 is fixedly connected to the bottom of the rotating column 22. Each of the four ends is fixedly connected to a fifth servo motor 24. Each fifth servo motor 24 is fixedly connected to a rotating frame 25 on its output shaft. Each rotating frame 25 is fixedly connected to a cylinder 26 on its opposite side. Each cylinder 26 is fixedly connected to an arc-shaped clamping plate 27 on its piston end. Each arc-shaped clamping plate 27 is fixedly connected to a rubber pad on one side. The upper surface of the protective cover 3 is fixedly connected to a first fixing plate 11. The first fixing plate 11 is provided with a moving structure 12. A sliding groove is provided on one side of the water tank 1. A filter frame 13 is slidably connected in the sliding groove. A snap-fit ​​hole is provided on the opposite side of the filter frame 13. A quick-release structure 14 is provided on the opposite side of the water tank 1.

[0039] To achieve the purpose of movement, the moving structure 12 includes a rotating shaft rotatably connected to one side of the first fixed plate 11, a first servo motor 121 fixedly connected to the other side of the first fixed plate 11, the output shaft of the first servo motor 121 fixedly connected to the other end of the rotating shaft, a rotating disk 122 fixedly connected to one end of the rotating shaft, a toggle post 123 fixedly connected to one side of the rotating disk 122, a sliding post 124 slidably connected through the upper surface of the protective cover 3, a moving post 126 fixedly connected to the upper surface of the sliding post 124, a moving groove opened on one side of the moving post 126, the toggle post 123 slidably connected in the moving groove, a second fixed plate 125 fixedly connected to the bottom of the sliding post 124, a water pump 4 fixedly connected to the bottom of the water tank 1, a water supply pipe 5 fixedly connected to the outlet end of the water pump 4, one end of the water supply pipe 5 penetrating one side of the water tank 1 and fixedly connected to a first flexible hose 6, one end of the first flexible hose 6 penetrating one side of the water tank 1 and fixedly connected to a spray nozzle 7, and the spray nozzle 7 penetrating and fixedly connected to the second fixed plate. On one side of the water tank 1, an air compressor 8 is fixedly connected to the side of the water tank 1. The air outlet of the air compressor 8 is fixedly connected to a second hose 9. One end of the second hose 9 is fixedly connected to an air jet nozzle 10. The air jet nozzle 10 is fixedly connected to one side of the second fixed plate 125. The first servo motor 121 drives the rotating disk 122 to rotate through the rotating shaft. The rotating disk 122 drives the actuating column 123 to rotate. The actuating column 123 drives the moving column 126 to move through the moving groove. The moving column 126 drives the second fixed plate 125 to move through the sliding column 124. The second fixed plate 125 drives the water spray nozzle 7 to move upward, so that the second fixed plate 125 drives the water spray nozzle 7 and the air jet nozzle 10 to move into the unwashed and washed bottle bodies respectively. The water spray nozzle 7 cleans the inside of the second bottle. Then the air compressor 8 delivers air into the air jet nozzle 10 through the second hose 9. The high-pressure gas blows away a large amount of water stains remaining inside the bottle body after cleaning from the bottle mouth, reducing water stains inside the bottle body and improving drying efficiency.

[0040] To facilitate disassembly and assembly, the quick-release structure 14 includes a fixed frame 141 fixedly connected to one side of the water tank 1. A sliding rod 142 is slidably connected through one side of the fixed frame 141. A locking post 143 is fixedly connected to one end of the sliding rod 142. A spring 145 is sleeved on the sliding rod 142. One end of the spring 145 is fixedly connected to the inside of the fixed frame 141, and the other end is fixedly connected to one side of the locking post 143. The locking post 143 is slidably connected through one side of the water tank 1 and is adapted to the corresponding locking hole. A fork 144 is rotatably connected to the other end of the sliding rod 142. One side of the fork 144 is in contact with the outside of the fixed frame 141. After cleaning, the fork 144 is moved, which moves the sliding rod 142. The sliding rod 142 moves the locking post 143, causing the locking post 143 to disengage from the locking hole and compress the spring 145, making it convenient for staff to remove the filter frame 13 and clean the internal impurities.

[0041] Working principle: Unwashed bottles are conveyed by the first conveyor belt to the space between two arc-shaped clamps 27. Then, the cylinder 26 drives the corresponding arc-shaped clamps 27 to clamp and fix the bottle. Next, the fourth servo motor 21 drives the cross-shaped rotating rod 23 to rotate 90 degrees via the rotating column 22. Then, the fifth servo motor 24 drives the rotating frame 25 to rotate 180 degrees, causing the bottle to flip. Simultaneously, the other two arc-shaped clamps 27 clamp and fix the next bottle. Then, the first servo motor 121 drives the rotating disk 122 to rotate via the rotating shaft. The rotating disk 122 drives the actuating column 123 to rotate. The actuating column 123 drives the moving column 126 to move via the moving groove. The moving column 126 drives the second fixed plate 125 to move via the sliding column 124. 25 drives the water nozzle 7 to move upward, moving it from the bottle opening to the inside of the bottle. Then, the water pump 4 transports the cleaning water from the water tank 1 to the first hose 6 via the water pipe 5, and then into the water nozzle 7 via the first hose 6. The water sprayed from the water nozzle 7 cleans the inside of the bottle. After the first bottle is cleaned, the first servo motor 121 drives the rotating disk 122 to rotate via the rotating shaft. The rotating disk 122 drives the actuating column 123 to rotate. The actuating column 123 drives the moving column 126 to move via the moving groove. The moving column 126 drives the second fixed plate 125 to move via the sliding column 124. The second fixed plate 125 drives the water nozzle 7 to move downward. Then, the fourth servo motor 21 drives the cross rotating rod 2 via the rotating column 22 to move downward. 3. Rotate 90 degrees, then the first servo motor 121 drives the rotating disk 122 to rotate via the rotating shaft. The rotating disk 122 drives the actuating column 123 to rotate. The actuating column 123 drives the moving column 126 to move via the moving groove. The moving column 126 drives the second fixed plate 125 to move via the sliding column 124. The second fixed plate 125 drives the water spray nozzle 7 to move upward, so that the second fixed plate 125 drives the water spray nozzle 7 and the air jet nozzle 10 to the unwashed and washed bottle bodies respectively. The water spray nozzle 7 cleans the inside of the second bottle. Then, the air compressor 8 delivers air into the air jet nozzle 10 through the second hose 9. The high-pressure gas blows away a large amount of water stains remaining inside the bottle body after cleaning from the bottle mouth, reducing water stains inside the bottle body and improving drying efficiency. After blowing, the second fixed plate 125 again moves the water nozzle 7 and air jet nozzle 10 downwards. The fifth servo motor 24 drives the rotating frame 25 to rotate 180 degrees, causing the bottle to flip again. Then, the fourth servo motor 21 drives the cross rotating rod 23 to rotate 90 degrees via the rotating column 22, moving the blown bottle above the second conveyor belt. The arc-shaped clamp 27 is released, and the bottle is then transported to the drying chamber 18 via the second conveyor belt for drying by the drying lamp 19. The washed water falls into the filter frame 13 for filtration. After washing, the fork 144 is moved, which moves the sliding rod 142. The sliding rod 142 moves the locking post 143, causing the locking post 143 to disengage from the locking hole and compress the spring 145.This allows staff to easily remove filter frame 13 and clean out any impurities inside.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bottle washing and drying integrated machine, comprising a water tank (1), characterized in that: A control cabinet (2) is fixedly connected to one side of the water storage tank (1). A protective cover (3) is fixedly connected to the upper surface of the water storage tank (1). An inlet and an outlet are provided on the outer side wall of the protective cover (3). The water storage tank (1) and the protective cover (3) are connected in a continuous manner. A first fixing plate (11) is fixedly connected to the upper surface of the protective cover (3). A movable structure (12) is provided on the first fixing plate (11). A sliding groove is provided on one side of the water storage tank (1). A filter frame (13) is slidably connected in the sliding groove. A snap-fit ​​hole is provided on the side of the filter frame (13) that is away from it. A quick-release structure (14) is provided on the side of the water storage tank (1) that is away from it. The movable structure (12) includes a rotating shaft rotatably connected to one side of the first fixed plate (11), a first servo motor (121) fixedly connected to the other side of the first fixed plate (11), the output shaft of the first servo motor (121) fixedly connected to the other end of the rotating shaft, a rotating disk (122) fixedly connected to one end of the rotating shaft, and a toggle post (123) fixedly connected to one side of the rotating disk (122).

2. The bottle washing and drying integrated machine according to claim 1, characterized in that: The upper surface of the protective cover (3) is slidably connected to a sliding column (124), and a movable column (126) is fixedly connected to the upper surface of the sliding column (124). A movable groove is provided on one side of the movable column (126), and the actuating column (123) is slidably connected in the movable groove. A second fixed plate (125) is fixedly connected to the bottom of the sliding column (124).

3. A bottle washing and drying integrated machine according to claim 2, characterized in that: A water pump (4) is fixedly connected to the bottom of the water tank (1). A water supply pipe (5) is fixedly connected to the outlet end of the water pump (4). One end of the water supply pipe (5) passes through one side of the water tank (1) and is fixedly connected to a first flexible hose (6). One end of the first flexible hose (6) passes through one side of the water tank (1) and is fixedly connected to a spray nozzle (7). The spray nozzle (7) passes through and is fixedly connected to one side of the second fixed plate (125).

4. A bottle washing and drying integrated machine according to claim 2, characterized in that: An air compressor (8) is fixedly connected to one side of the water storage tank (1). A second hose (9) is fixedly connected to the air outlet end of the air compressor (8). An air jet nozzle (10) is fixedly connected to one end of the second hose (9). The air jet nozzle (10) is fixedly connected to one side of the second fixed plate (125).

5. A bottle washing and drying integrated machine according to claim 1, characterized in that: The quick-release structure (14) includes a fixed frame (141) fixedly connected to one side of the water tank (1). A sliding rod (142) is slidably connected through one side of the fixed frame (141). A snap-fit ​​post (143) is fixedly connected to one end of the sliding rod (142). The snap-fit ​​post (143) is slidably connected through one side of the water tank (1) and is adapted to the corresponding snap-fit ​​hole. A fork (144) is rotatably connected to the other end of the sliding rod (142). One side of the fork (144) is in contact with the outer side of the fixed frame (141).

6. A bottle washing and drying integrated machine according to claim 5, characterized in that: A spring (145) is fitted on the sliding rod (142). One end of the spring (145) is fixedly connected to one side of the inside of the fixed frame (141), and the other end is fixedly connected to one side of the snap-fit ​​post (143).

7. A bottle washing and drying integrated machine according to claim 1, characterized in that: A support rod (15) is fixedly connected to one side of the water tank (1). A first conveyor platform (16) is fixedly connected to one end of the support rod (15). One end of the first conveyor platform (16) extends from the feed inlet into the interior of the protective cover (3). Two first conveyor rollers are rotatably connected inside the first conveyor platform (16). A first conveyor belt is movably mounted on the two first conveyor rollers. A second servo motor is fixedly connected to one side of the first conveyor platform (16). The output shaft of the second servo motor is fixedly connected to one end of one of the first conveyor rollers.

8. A bottle washing and drying integrated machine according to claim 1, characterized in that: Two fixed brackets (17) are fixedly connected to one side of the water storage tank (1). A drying box (18) is fixedly connected to the upper surface of the two fixed brackets (17). Multiple drying lamps (19) are fixedly connected to the top of the drying box (18). A second conveyor platform (20) is fixedly connected to the bottom of the drying box (18). One end of the second conveyor platform (20) extends into the interior of the protective cover (3) through the discharge port. Two second conveyor rollers are rotatably connected inside the second conveyor platform (20). A second conveyor belt is movably mounted on the two second conveyor rollers. A third servo motor is fixedly connected to one side of the second conveyor platform (20). The output shaft of the third servo motor is fixedly connected to one end of one of the second conveyor rollers.

9. A bottle washing and drying integrated machine according to claim 1, characterized in that: A fourth servo motor (21) is fixedly connected to the upper surface of the protective cover (3). A rotating column (22) is fixedly connected to the output shaft of the fourth servo motor (21). One end of the rotating column (22) is rotatably connected to the inner top of the protective cover (3). A cross rotating rod (23) is fixedly connected to the bottom of the rotating column (22). A fifth servo motor (24) is fixedly connected to each of the four ends of the cross rotating rod (23). A rotating frame (25) is fixedly connected to the output shaft of each fifth servo motor (24). A cylinder (26) is fixedly connected to the side of each rotating frame (25) that is far away from each other. An arc-shaped clamp (27) is fixedly connected to the piston end of each cylinder (26). One side of each arc-shaped clamp (27) is fixedly connected to a rubber pad.

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