An automated conveying device and method for preventing seedling racks from tipping over.

Abstract

This invention discloses an automated anti-tipping conveying device and method for seedling racks, comprising a track base and a hollow conveying base. Multiple support rods are fixedly connected to the upper surface of the track base, and two traveling tracks are fixedly connected to the track base via the support rods. Four connecting rods are rotatably connected to the lower surface of the conveying base via bearings. A guide block is fixedly connected to the end of each connecting rod away from the conveying base, and the guide block is slidably connected to the corresponding traveling track. An anti-tipping mechanism is provided at the conveying base, comprising a main sliding sleeve and four auxiliary sliding sleeves. The main and auxiliary sliding sleeves are all fixedly connected through the top wall of the conveying base, and a placement plate is slidably and sealingly connected to the main sliding sleeve. The advantages are: the device of this invention can effectively prevent the seedling rack from tipping over during conveying, making the conveying more stable, and it can automatically start and stop, greatly improving the degree of automation and making the device more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of conveying device technology, and in particular to an automated conveying device and method for preventing seedling racks from tipping over. Background Technology

[0002] Agricultural planting is one of the most important industries. All the agricultural products we need in our lives are obtained through agricultural planting. In the process of agricultural planting, in order to shorten the seedling recovery time and enhance the resistance of seedlings to low temperature, strong wind, etc., hardening-off is usually required. Hardening-off is a process of forcibly hardening off seedlings in protected seedling cultivation by taking measures such as ventilation, cooling, and appropriate water control, so that they can quickly adapt to the adverse environmental conditions of the land after transplanting. Hardening-off is usually carried out on hardening-off racks. Hardening-off racks have a multi-layer structure and can harden off multiple seedlings at the same time. The hardening-off racks need to go through multiple processing steps during the processing, and the racks need to be transported between each step.

[0003] In the existing technology, the existing conveying methods are often carried out by means of flatbed carts, conveyor belts, etc. However, since the seedling hardening rack has a certain height, it is very easy to tip over during the conveying process, which will cause the seedling hardening rack to fall and break, or even injure the processing personnel, resulting in low safety. Moreover, after the seedling hardening rack is conveyed to the designated position, the processing personnel need to quickly remove the seedling hardening rack because the conveyor belt continues to convey, otherwise the seedling hardening rack will cross the processing station, which is inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing an automated conveying device and method for preventing seedling racks from tipping over.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automated anti-tipping conveying device for seedling racks includes a track base and a hollow conveying base. Multiple support rods are fixedly connected to the upper surface of the track base, and two walking tracks are fixedly connected to the track base through the support rods. Four connecting rods are rotatably connected to the lower surface of the conveying base through bearings. A guide block is fixedly connected to the end of each connecting rod away from the conveying base, and the guide block is slidably connected to the corresponding walking track.

[0007] Furthermore, an anti-tipping mechanism is provided at the conveyor seat. The anti-tipping mechanism includes one main sliding sleeve and four auxiliary sliding sleeves. The main sliding sleeve and auxiliary sliding sleeves are all fixedly connected to the top wall of the conveyor seat. The main sliding sleeve is slidably connected to a main sliding column. A placement plate is fixedly connected to the upper surface of the main sliding column. Multiple pressure springs are fixedly connected between the placement plate and the conveyor seat. The auxiliary sliding sleeves are slidably connected to auxiliary sliding columns. A clamping plate is fixedly connected to one end of the auxiliary sliding column located outside the auxiliary sliding sleeve. The main sliding sleeve and the auxiliary sliding sleeves are jointly fixedly connected to a first pipe. The first pipe connects the corresponding auxiliary sliding sleeve to the main sliding sleeve. Both the main sliding sleeve and the auxiliary sliding sleeves are filled with hydraulic oil.

[0008] Furthermore, a traveling mechanism is provided at the conveyor seat. The traveling mechanism includes a torque motor, the output shaft of which is fixedly connected to a rotating shaft. The rotating shaft is rotatably connected to the bottom wall of the conveyor seat through a bearing and extends into its interior. A first bevel gear is fixedly connected to one end of the rotating shaft inside the conveyor seat. A rotating rod is rotatably connected between two opposing inner sidewalls of the conveyor seat through a bearing. A second bevel gear and two third bevel gears are fixedly connected through the rotating rod. The second bevel gear meshes with the first bevel gear. Two wheel axles are rotatably connected through the bottom wall of the conveyor seat through a bearing. One end of the wheel axle extends into the conveyor seat and is fixedly connected to a fourth bevel gear. The other end extends into the outside of the conveyor seat and is fixedly connected to a traveling wheel. The third bevel gear meshes with the corresponding fourth bevel gear. The traveling wheel abuts against the corresponding traveling track.

[0009] Furthermore, the walking mechanism also includes a hollow spiral block, which is fixedly connected to the first tube. The first tube has a through hole on the side wall of a section inside the spiral block, which connects the corresponding first tube to the spiral block. Two second tubes are fixedly connected to the bottom wall of the spiral block, and pressure columns are slidably connected to the second tubes. A resistance block is fixedly connected to one end of the pressure column outside the second tube. The lower surface of the resistance block is arc-shaped and has a rubber pad glued on it. The spiral block is filled with hydraulic oil, and two friction wheels are fixedly connected to the rotating rod.

[0010] Furthermore, a stopping mechanism is provided on the lower surface of the guide block. The stopping mechanism includes two fixed plates, which are fixedly connected to the lower surface of the guide block. An installation rod is fixedly connected between the two fixed plates. The installation rod is rotatably connected to a rotating block through a bearing. A torsion spring is fixedly connected between the rotating block and the fixed plate.

[0011] Furthermore, the track seat is fixedly connected to a stop block by bolts, and the track seat has multiple threaded holes.

[0012] Furthermore, the surface of the walking wheel is covered with rubber, and the surface of the friction wheel is coated with a frosted coating.

[0013] This invention also provides an automated conveying method for preventing seedling racks from tipping over, comprising the following steps:

[0014] S1. Determine the material cutting position: First, determine the required material cutting position, and fix the stop block in the required material cutting position by bolts and threaded holes;

[0015] S2, Loading: Place the seedling rack to be transported on the placement plate. The placement plate drives the main sliding column to move downward. The auxiliary sliding column is slid by hydraulic oil. The seedling rack is clamped and fixed by the clamping plate.

[0016] S3. Conveying: Start the torque motor, and through the meshing of the first bevel gear and the second bevel gear, as well as the third bevel gear and the fourth bevel gear, the traveling wheel rotates. The traveling wheel cooperates with the traveling track to make the conveyor seat move, conveying the seedling rack to the stop block, where the conveyor seat stops moving.

[0017] S4. Unloading: Remove the seedling rack from the stopped conveyor seat;

[0018] S5. Return to position: After the seedling rack is removed, the conveyor seat can pass over the stop block and return to the feeding position along the travel track to continue feeding and conveying.

[0019] The present invention has the following advantages:

[0020] 1. Place the seedling rack to be transported on the placement plate. The weight of the seedling rack itself will cause the main sliding column to slide down. The hydraulic oil will cause the secondary sliding column in the secondary sliding sleeve to slide out of the secondary sliding sleeve, thereby causing the clamping plate to move. The clamping plate clamps the seedling rack, effectively preventing the seedling rack from tipping over and being damaged. At the same time, it avoids accidental injury to processing personnel and improves the safety during transportation.

[0021] 2. During the conveying process, when a seedling rack is placed on the conveyor seat, the weight of the seedling rack clamps it while the friction force is applied to the friction wheel through the resistance block, reducing the rotational torque of the traveling wheel. When the rotating block contacts the stop block, the stop block blocks the rotation, and the rotational torque of the traveling wheel is insufficient to make the rotating block rotate, thus stopping the conveyor seat. After the seedling rack is removed, the frictional resistance of the friction wheel disappears, and the rotational torque of the traveling wheel increases. This rotational torque allows the rotating block to rotate, passing the stop block, and allowing the conveyor seat to continue moving. That is, during the conveying process, the conveyor seat can automatically stop after moving to the stop block position, and after the seedling rack is removed, the conveyor seat can automatically pass the stop block and continue moving, greatly improving the automation level of the device and making the device more convenient to use.

[0022] 3. The setting of multiple threaded holes allows the position of the stop block to be freely adjusted, so that the device can adjust the stop position of the conveyor seat according to the required feeding position, and can adjust the stop position of the conveyor seat according to the position of other processing equipment on site, so as to better adapt to other processing equipment;

[0023] 4. With the setting of four sets of stopping mechanisms, and the rotating block can rotate in both directions, the conveyor seat can be used in both directions of movement along the travel track, making the device more flexible in use;

[0024] 5. The seedling rack is held in place by its own weight. The heavier the seedling rack, the greater the clamping force. This allows the clamping plate to adjust the clamping force according to the weight of the seedling rack, ensuring a stable clamping and anti-tipping effect and further improving the automation level of the device.

[0025] 6. Due to the frictional resistance applied by the resistance block, the conveyor seat carrying the seedling rack has a slow conveying speed to ensure smooth conveying. After the seedling rack is removed, the frictional resistance disappears, and the conveying speed of the conveyor seat increases, so as to return to its position more quickly for the next conveying, thereby improving conveying efficiency while ensuring stable conveying. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an automated conveying device for preventing seedling racks from tipping over, as proposed in this invention.

[0027] Figure 2 This is a schematic diagram of the internal structure of an automated conveying device for preventing seedling racks from tipping over, as proposed in this invention.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0029] Figure 4 This is a schematic diagram of the internal structure of the conveyor seat in an automated anti-tipping conveyor device for seedling racks proposed in this invention;

[0030] Figure 5 This is a schematic diagram of the guide block in an automated conveying device for preventing seedling racks from tipping over, as proposed in this invention.

[0031] Figure 6 This is a partial structural diagram of the track seat in an automated conveyor device for preventing the seedling rack from tipping over, as proposed in this invention.

[0032] Figure 7 This is a schematic diagram of the structure of the stop block in an automated conveying device for preventing the seedling rack from tipping over, as proposed in this invention.

[0033] In the diagram: 1. Conveyor seat; 2. Main sliding sleeve; 3. Main sliding column; 4. Placement plate; 5. Pressure spring; 6. Secondary sliding sleeve; 7. Secondary sliding column; 8. Clamping plate; 9. First tube; 10. Torque motor; 11. Rotating shaft; 12. First bevel gear; 13. Rotating rod; 14. Second bevel gear; 15. Third bevel gear; 16. Wheel axle; 17. Fourth bevel gear; 18. Traveling wheel; 19. Hobbit block; 20. Through hole; 21. Second tube; 22. Pressure column; 23. Resistance block; 24. Rubber pad; 25. Friction wheel; 26. Connecting rod; 27. Guide block; 28. Fixing plate; 29. ​​Mounting rod; 30. Rotating block; 31. Torsion spring; 32. Support rod; 33. Traveling track; 34. Stop block; 35. Bolt; 36. Threaded hole; 37. Track seat. Detailed Implementation

[0034] Reference Figure 1-7 An automated anti-tipping conveying device for seedling racks includes a track base 37 and a hollow conveying base 1. Multiple support rods 32 are fixedly connected to the upper surface of the track base 37. Two walking tracks 33 are fixedly connected to the track base 37 via the support rods 32. The walking tracks 33 are closed loop tracks, connected end-to-end (only part of the walking tracks 33 is shown in the figure, not all tracks), thus ensuring that the conveying base 1 can return to the starting point after departing. Four connecting rods 26 are rotatably connected to the lower surface of the conveying base 1 via bearings. A guide block 27 is fixedly connected to the end of each connecting rod 26 away from the conveying base 1. The guide block 27 is slidably connected to the corresponding walking track 33. Due to the rotatable connection of the connecting rods 26, the guide block 27 can rotate to a certain extent, thereby ensuring the stable operation of the conveying base 1 even on tracks with a certain curvature.

[0035] An anti-tipping mechanism is provided at the conveyor seat 1. The anti-tipping mechanism includes one main sliding sleeve 2 and four auxiliary sliding sleeves 6. The main sliding sleeve 2 and the auxiliary sliding sleeves 6 are all fixedly connected to the top wall of the conveyor seat 1. The main sliding sleeve 2 is slidably connected to a main sliding column 3. A placement plate 4 is fixedly connected to the upper surface of the main sliding column 3. Multiple pressure springs 5 ​​are fixedly connected between the placement plate 4 and the conveyor seat 1. The auxiliary sliding sleeves 6 are slidably connected to auxiliary sliding columns 7. A clamping plate 8 is fixedly connected to one end of the auxiliary sliding column 7 located outside the auxiliary sliding sleeve 6. The main sliding sleeve 2 and the auxiliary sliding sleeves 6 are jointly fixedly connected by a first pipe 9. The first pipe 9 will... The auxiliary sliding sleeve 6 is connected to the main sliding sleeve 2. Both the main sliding sleeve 2 and the auxiliary sliding sleeve 6 are filled with hydraulic oil. The seedling rack to be transported is placed on the placement plate 4. During placement, due to the weight of the seedling rack, the placement plate 4 causes the main sliding column 3 to slide down. The main sliding column 3 slides down and pumps the hydraulic oil in the main sliding sleeve 2 into the auxiliary sliding sleeve 6 through the first pipe 9, thereby causing the auxiliary sliding column 7 to slide out and drive the clamping plate 8 to approach the seedling rack and clamp and fix the seedling rack to prevent it from tipping over during transportation, thus preventing the seedling rack from falling and breaking, and also preventing accidental injury to processing personnel, thereby improving safety.

[0036] It is worth mentioning that the seedling rack is clamped by its own weight. The heavier the seedling rack, the greater the clamping force. As a result, the clamping plate 8 can adjust the clamping force according to the weight of the seedling rack, ensuring a stable clamping and anti-tipping effect, and further improving the automation level of the device.

[0037] It should be noted that the width of the clamping plate 8 should be greater than the width between the two columns of the seedling rack, so as to ensure that the clamping plate 8 can clamp the seedling rack.

[0038] A traveling mechanism is provided at the conveyor seat 1, which includes a torque motor 10. The torque motor 10 can output a fixed torque, not a fixed speed. Its speed changes with the resistance it encounters, and it can continue to operate even at low speeds or when stalled, without causing damage to the torque motor 10. This ensures that the torque motor 10 will not be damaged due to stalling when the conveyor seat 1 stops. The output shaft of the torque motor 10 is fixedly connected to a rotating shaft 11. The rotating shaft 11 is rotatably connected to the bottom wall of the conveyor seat 1 through a bearing and extends into its interior. A first bevel gear 12 is fixedly connected to one end of the rotating shaft 11 inside the conveyor seat 1. The two opposing inner sidewalls of the conveyor seat 1 rotate between each other through a bearing. A rotating rod 13 is connected, through which a second bevel gear 14 and two third bevel gears 15 are fixedly connected. The second bevel gear 14 meshes with the first bevel gear 12. Two axles 16 are rotatably connected to the bottom wall of the conveyor seat 1 via bearings. One end of each axle 16 extends into the conveyor seat 1 and is fixedly connected to a fourth bevel gear 17; the other end extends out of the conveyor seat 1 and is fixedly connected to a traveling wheel 18. The third bevel gears 15 mesh with their corresponding fourth bevel gears 17, and the traveling wheels 18 abut against their corresponding traveling tracks 33. The two third bevel gears 15 are symmetrically arranged about the first bevel gear 12, and the meshing positions of the two third bevel gears 15 with their corresponding fourth bevel gears 17 are different (e.g., ...). Figure 2As shown), this causes the two fourth bevel gears 17 to rotate in opposite directions, which in turn causes the two traveling wheels 18 to rotate in opposite directions. The walking mechanism also includes a hollow loop block 19, which is fixedly connected to the first tube 9. A through hole 20 is provided on the side wall of the first tube 9 located inside the loop block 19, connecting the corresponding first tube 9 to the loop block 19. Two second tubes 21 are fixedly connected through the bottom wall of the loop block 19. Pressure columns 22 are slidably connected to the second tubes 21. A sealing gasket is provided at the sliding connection between the pressure column 22 and the second tube 21, ensuring a seal while providing resistance to the sliding motion. This ensures that the secondary sliding column 7 slides first. Only when the secondary sliding column 7 cannot slide can the pressure column 22 begin to move, ensuring stable clamping. A resistance block 23 is fixedly connected to one end of the pressure column 22 outside the second tube 21. The lower surface of the resistance block 23 is arc-shaped and has a rubber pad 24 glued to it. The loop block 19 is filled with hydraulic oil. Two friction wheels 25 are fixedly connected through the rotating rod 13. The arc-shaped surface of the resistance block 23 can completely conform to the friction wheels 25 (e.g., Figure 3 As shown in the figure, the rubber pad 24 increases the friction between the resistance block 23 and the friction wheel 25, thereby better controlling the rotational torque of the rotating rod 13.

[0039] It is worth mentioning that the conveyor seat 1 carrying the seedling rack has a slow conveying speed due to the frictional resistance applied by the resistance block 23, which ensures smooth conveying. After the seedling rack is removed, the frictional resistance disappears, and the conveying speed of the conveyor seat 1 increases, so as to return to its position more quickly for the next conveying, thereby improving conveying efficiency while ensuring stable conveying.

[0040] A stopping mechanism is provided on the lower surface of the guide block 27. The stopping mechanism includes two fixed plates 28, which are fixedly connected to the lower surface of the guide block 27. A mounting rod 29 is fixedly connected between the two fixed plates 28. The mounting rod 29 is rotatably connected to a rotating block 30 through a bearing. A torsion spring 31 is fixedly connected between the rotating block 30 and the fixed plates 28. The torsion spring 31 is provided so that when the rotating rod 13 is not subject to other resistance, the torque motor 10 transmits its torque to the traveling wheel 18, and the traveling force of the conveyor seat 1 can overcome the elastic force of the torsion spring 31, allowing the rotating block 30 to rotate after being blocked. However, if the rotating rod 13 is subject to resistance and the torque decreases, it cannot overcome the resistance. The spring force of the torsion spring 31 is insufficient to prevent the rotating block 30 from rotating after being blocked. The torque motor 10 drives the first bevel gear 12 to rotate via the rotating shaft 11. Through the meshing of the first bevel gear 12 and the second bevel gear 14, the rotating rod 13 is driven to rotate. The rotating rod 13 then drives the wheel axle 16 to rotate through the meshing of the third bevel gear 15 and the fourth bevel gear 17, thereby causing the traveling wheel 18 to rotate. Through the cooperation of the traveling wheel 18 and the traveling track 33, the conveyor seat 1 moves along the traveling track 33 to transport the seedling rack. When the seedling rack is transported to the designated position, the rotating block 30 contacts the stop block 34. Due to the placement of the seedling rack, the main sliding column 3 slides down, causing the clamping plate 8 to clamp the seedling rack. At the same time, the hydraulic oil... It will also be pumped into the loop block 19 through the through hole 20, and then into the second pipe 21, causing the pressure column 22 to slide down, thereby making the pressure column 22 contact the friction wheel 25 and apply a certain pressure to the friction wheel 25. Due to the application of pressure, the friction wheel 25 will be subject to a certain frictional resistance, which in turn will cause the rotation of the rotating rod 13 to be subject to a certain resistance. Due to the existence of this resistance, the rotational torque of the rotating rod 13 will decrease, which in turn will decrease the rotational torque of the traveling wheel 18. At this time, the rotational torque of the traveling wheel 18 cannot overcome the elastic force of the torsion spring 31, and the rotating block 30 cannot rotate, causing the conveyor seat 1 to stop at this point. The seedling rack is then taken out vertically upward. At this time, under the elastic force of the pressure spring 5, the main sliding column 3... The upward sliding reset draws the hydraulic oil back into the main sliding sleeve 2, causing the clamping plate 8 to reset. At the same time, the resistance block 23 separates from the friction wheel 25, thus eliminating the frictional resistance of the friction wheel 25. The disappearance of the frictional resistance increases the rotational torque of the rotating rod 13, which in turn increases the rotational torque of the traveling wheel 18. The rotational torque of the traveling wheel 18 can then overcome the elastic force of the torsion spring 31, causing the rotating block 30 to rotate and pass over the stop block 34. This allows the conveyor seat 1 to pass over the stop block 34, so that after conveying to the designated position, the conveyor seat 1 can automatically stop. After the seedling rack is removed, it can automatically continue to move forward, greatly improving the automation level of the device and making the device more convenient to use.

[0041] It is worth mentioning that by setting up four sets of stopping mechanisms, and by allowing the rotating block 30 to rotate in both directions, the conveyor seat 1 can be used in both directions of movement along the walking track 33, making the device more flexible in use.

[0042] The track base 37 is fixedly connected to the stop block 34 by bolts 35, and the track base 37 has multiple threaded holes 36 (e.g. Figure 1 and Figure 6 As shown in the figure, the position of the stop block 34 can be freely adjusted, thereby adjusting the position of the stop block 34 according to the position of the processing equipment, and then adjusting the stop position of the conveyor seat 1 according to the position of the processing equipment, so that the device can better adapt to the position of other processing equipment.

[0043] The surface of the traveling wheel 18 is covered with rubber, which increases the friction between the traveling wheel 18 and the traveling track 33, thereby enabling the traveling wheel 18 to better drive the conveyor seat 1 to move. The surface of the friction wheel 25 is coated with a frosted coating, which further increases the friction between the friction wheel 25 and the resistance block 23, thereby better controlling the rotational torque of the rotating rod 13.

[0044] This invention also provides an automated conveying method for preventing seedling racks from tipping over, comprising the following steps:

[0045] S1. Determine the material cutting position: First, determine the required material cutting position, and fix the stop block 34 at the required material cutting position by using bolt 35 and threaded hole 36;

[0046] S2, Loading: Place the seedling rack to be transported on the placement plate 4. The placement plate 4 drives the main sliding column 3 to move downward. The auxiliary sliding column 7 slides through the hydraulic oil. The clamping plate 8 clamps and fixes the seedling rack.

[0047] S3. Conveying: Start the torque motor 10, and through the meshing of the first bevel gear 12 and the second bevel gear 14, and the third bevel gear 15 and the fourth bevel gear 17, the walking wheel 18 rotates. The walking wheel 18 cooperates with the walking track 33, causing the conveyor seat 1 to move and convey the seedling rack to the stop block 34, at which point the conveyor seat 1 stops moving.

[0048] S4. Unloading: Remove the seedling rack from the stopped conveyor seat 1;

[0049] S5. Return to position: After the seedling rack is removed, the conveyor seat 1 can pass over the stop block 34 and return to the feeding position along the walking track 33 to continue feeding and conveying.

[0050] In this invention, the stop block 34 is first fixed to the threaded hole 36 by bolts 35 according to the required material feeding position.

[0051] The seedling rack to be transported is placed on the placement plate 4. During placement, due to the weight of the seedling rack, the placement plate 4 causes the main sliding column 3 to slide down. The main sliding column 3 slides down and pumps the hydraulic oil in the main sliding sleeve 2 into the auxiliary sliding sleeve 6 through the first pipe 9, thereby causing the auxiliary sliding column 7 to slide out and drive the clamping plate 8 to approach the seedling rack and clamp and fix the seedling rack.

[0052] After placement, the torque motor 10 is turned on. The torque motor 10 drives the first bevel gear 12 to rotate through the rotating shaft 11. Through the meshing of the first bevel gear 12 and the second bevel gear 14, the rotating rod 13 is driven to rotate. The rotating rod 13 then drives the wheel axle 16 to rotate through the meshing of the third bevel gear 15 and the fourth bevel gear 17, thereby causing the traveling wheel 18 to rotate. Through the cooperation of the traveling wheel 18 and the traveling track 33, the conveyor seat 1 moves along the traveling track 33 to transport the seedling rack.

[0053] When the material is delivered to the designated position, the rotating block 30 contacts the stop block 34. Due to the placement of the seedling rack, the main sliding column 3 slides down, causing the clamping plate 8 to clamp the seedling rack. At the same time, hydraulic oil is pumped into the U-shaped block 19 through the through hole 20 and then into the second pipe 21, causing the pressure column 22 to slide down. This causes the pressure column 22 to contact the friction wheel 25 and apply a certain pressure to the friction wheel 25. Due to the application of pressure, the friction wheel 25 will experience a certain frictional resistance, which in turn causes the rotation of the rotating rod 13 to be subject to a certain resistance. Due to the existence of this resistance, the rotational torque of the rotating rod 13 is reduced, which in turn reduces the rotational torque of the traveling wheel 18. At this time, the rotational torque of the traveling wheel 18 cannot overcome the elastic force of the torsion spring 31, and the rotating block 30 cannot rotate, causing the conveyor seat 1 to stop at this point.

[0054] The seedling rack is taken out vertically upwards. At this time, under the elastic force of the pressure spring 5, the main sliding column 3 slides upwards and resets, and the hydraulic oil is drawn back into the main sliding sleeve 2, so that the clamping plate 8 is reset. At the same time, the resistance block 23 separates from the friction wheel 25, so that the frictional resistance of the friction wheel 25 disappears. The disappearance of the frictional resistance increases the rotational torque of the rotating rod 13, which in turn increases the rotational torque of the traveling wheel 18. At this time, the rotational torque of the traveling wheel 18 can overcome the elastic force of the torsion spring 31, so that the rotating block 30 rotates and passes the stop block 34, and then the conveyor seat 1 passes the stop block 34.

[0055] After the conveyor seat 1 passes the stop 34, it can return to the loading position along the walking track 33. After the conveyor seat 1 returns to the loading position, the torque motor 10 is turned off, and the seedling rack can be transported according to the above steps.

Claims

1. An automated conveying device for preventing seedlings from tipping over, comprising a track base (37) and a hollow conveying base (1), characterized in that, Multiple support rods (32) are fixedly connected to the upper surface of the track seat (37). Two walking tracks (33) are fixedly connected to the track seat (37) through the support rods (32). Four connecting rods (26) are rotatably connected to the lower surface of the conveyor seat (1) through bearings. A guide block (27) is fixedly connected to the end of the connecting rod (26) away from the conveyor seat (1). The guide block (27) is slidably connected to the corresponding walking track (33). An anti-tipping mechanism is provided at the conveyor seat (1). The anti-tipping mechanism includes a main sliding sleeve (2) and four auxiliary sliding sleeves (6). The main sliding sleeve (2) and the auxiliary sliding sleeves (6) are fixedly connected to the top wall of the conveyor seat (1). The main sliding sleeve (2) is slidably connected to a main sliding column (3). A placement plate (4) is fixedly connected to the upper surface of the main sliding column (3). Multiple pressure springs (5) are fixedly connected between the placement plate (4) and the conveyor seat (1). The auxiliary sliding sleeve (6) is slidably connected to an auxiliary sliding column (7). A clamping plate (8) is fixedly connected to one end of the auxiliary sliding column (7) located outside the auxiliary sliding sleeve (6). The main sliding sleeve (2) and the auxiliary sliding sleeves (6) are jointly fixedly connected to a first pipe (9). The first pipe (9) connects the corresponding auxiliary sliding sleeve (6) to the main sliding sleeve (2). The main sliding sleeve (2) and the auxiliary sliding sleeves (6) are both filled with hydraulic oil. A traveling mechanism is provided at the conveyor seat (1). The traveling mechanism includes a torque motor (10). The output shaft of the torque motor (10) is fixedly connected to a rotating shaft (11). The rotating shaft (11) is rotatably connected to the bottom wall of the conveyor seat (1) through a bearing and extends into its interior. A first bevel gear (12) is fixedly connected to one end of the rotating shaft (11) inside the conveyor seat (1). A rotating rod (13) is rotatably connected between two opposite inner sidewalls of the conveyor seat (1) through a bearing. A second bevel gear (14) is fixedly connected to the rotating rod (13). The conveyor seat (1) has two third bevel gears (15), the second bevel gear (14) meshes with the first bevel gear (12), and the bottom wall of the conveyor seat (1) is rotatably connected to two axles (16) through bearings. One end of the axle (16) extends through into the conveyor seat (1) and is fixedly connected to a fourth bevel gear (17), and the other end extends through into the outside of the conveyor seat (1) and is fixedly connected to a traveling wheel (18). The third bevel gear (15) meshes with the corresponding fourth bevel gear (17), and the traveling wheel (18) abuts against the corresponding traveling track (33). The walking mechanism also includes a hollow spiral block (19), which is fixedly connected to the first tube (9). The first tube (9) has a through hole (20) on the side wall of a section inside the spiral block (19). The through hole (20) connects the corresponding first tube (9) to the spiral block (19). The bottom wall of the spiral block (19) is fixedly connected to two second tubes (21). The second tubes (21) are slidably connected to a pressure column (22). The end of the pressure column (22) outside the second tube (21) is fixedly connected to a resistance block (23). The lower surface of the resistance block (23) is arc-shaped and glued with a rubber pad (24). The spiral block (19) is filled with hydraulic oil. The rotating rod (13) is fixedly connected to two friction wheels (25). The guide block (27) is provided with a stop mechanism on its lower surface. The stop mechanism includes two fixed plates (28). The fixed plates (28) are fixedly connected to the lower surface of the guide block (27). An installation rod (29) is fixedly connected between the two fixed plates (28). The installation rod (29) is rotatably connected to a rotating block (30) through a bearing. A torsion spring (31) is fixedly connected between the rotating block (30) and the fixed plate (28). The track seat (37) is fixedly connected to a stop block (34) by bolts (35), and the track seat (37) has multiple threaded holes (36).

2. The automated anti-tipping conveying device for seedling racks according to claim 1, characterized in that, The surface of the walking wheel (18) is covered with rubber, and the surface of the friction wheel (25) is coated with a frosted coating.

3. A conveying method using the automated anti-tipping conveying device for seedling racks as described in claim 2, characterized in that, Includes the following steps: S1. Determine the material cutting position: First, determine the required material cutting position, and fix the stop block (34) at the required material cutting position by means of bolt (35) and threaded hole (36); S2, Loading: Place the seedling rack to be transported on the placement plate (4). The placement plate (4) drives the main sliding column (3) to move downward. The auxiliary sliding column (7) slides through the hydraulic oil. The seedling rack is clamped and fixed by the clamping plate (8). S3, conveying: Start the torque motor (10), and through the meshing of the first bevel gear (12) and the second bevel gear (14) and the third bevel gear (15) and the fourth bevel gear (17), the walking wheel (18) rotates. The walking wheel (18) cooperates with the walking track (33) to make the conveyor seat (1) move, and the seedling rack is conveyed to the stop block (34), and the conveyor seat (1) stops moving. S4. Unloading: Remove the seedling rack from the stopped conveyor seat (1); S5. Return to position: After the seedling rack is removed, the conveyor seat (1) can pass over the stop block (34) and return to the feeding position along the walking track (33) to continue feeding and conveying.

Images