Intelligent rice self-loading seedling device

Abstract

The utility model relates to an intelligent rice independent seedling loading device, a fixed frame is fixedly installed on a support frame, a plurality of seedling loading frames are distributed in a vertical installation space in sequence and at intervals from top to bottom, and each seedling loading frame is fixedly connected with the fixed frame obliquely with the left end lower than the right end, a reversible door mechanism baffle one is arranged at the left end of each seedling loading frame, a seedling transition mechanism is arranged at the left side of the seedling loading mechanism, two vertical sliding grooves are formed in the opposite sides of the vertical frame, a plurality of position sensing switches are distributed correspondingly with a plurality of seedling loading frames, two connecting arms of a lifting frame are connected with two sliding blocks in a pair of vertical sliding grooves through a connecting rod, a transition seedling loading frame is arranged in the interior of the lifting frame and has a set swing angle, a reversible door mechanism baffle two is arranged at the left end of the transition seedling loading frame, two vertical driving mechanisms are installed on the two vertical beams and are connected with the two connecting arms respectively and are used for driving the vertical displacement of the lifting frame. The device has high intelligent degree, and the device can complete independent seedling loading operation in cooperation with a rice transplanter.

Description

Technical Field

[0001] This invention belongs to the field of intelligent agricultural machinery technology, specifically an intelligent rice self-loading device. Background Technology

[0002] Rice is a crucial staple crop in my country, with a planting area exceeding 400 million mu (approximately 66.7 million hectares). Machine transplanting is the primary planting method. Currently, unmanned driving technology for rice transplanters is relatively mature, achieving straight-line driving and row alignment accuracy of ±2.5cm, which basically meets operational needs. However, the seedling loading process still requires manual labor. This process presents significant problems in terms of labor intensity, labor costs, and operational efficiency, specifically: From a labor intensity perspective, seedling loading workers must maintain a bent-over posture for extended periods, precisely performing seedling placement and positioning operations. The average daily high-intensity work time exceeds 8 hours, easily leading to occupational injuries such as lumbar muscle strain. Furthermore, there is a significant shortage of skilled workers during the busy farming season, and their instability makes it difficult to guarantee continuous operation. From a labor cost perspective, the demand for professional seedling loading workers surges during the busy farming season, causing market prices to rise sharply. The labor cost per mu (approximately 0.067 hectares) accounts for over 40% of the total labor cost, significantly increasing project operating costs and severely squeezing profit margins. From an operational efficiency perspective, manual rice seedling loading requires transporting large numbers of seedlings one by one onto the rice transplanter in a "rolled" manner. This results in an actual transplanting efficiency that is more than 30% lower than the theoretical efficiency, not only delaying the planting season but also further increasing the operating cost per unit area. To address the shortcomings of existing technologies, there is an urgent need to provide an intelligent autonomous rice seedling loading device to effectively promote the comprehensive upgrade from "driverless rice transplanters" to "unmanned rice transplanters" and effectively improve the economic and social benefits of rice production. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides an intelligent rice self-loading device. This device is highly intelligent and can autonomously complete the seedling loading operation of multi-layer seedling racks. It can also deliver the seedlings into the seedling box of the rice transplanter at the appropriate time to complete the autonomous seedling delivery operation. It can work with the rice transplanter to complete the autonomous seedling loading operation and can effectively cooperate with the rice transplanter to complete the efficient replanting operation, which is conducive to improving the planting efficiency of rice.

[0004] To achieve the above objectives, the present invention provides an intelligent rice self-loading device, comprising a loading mechanism, a seedling transition mechanism, and an intelligent controller; The seedling loading mechanism includes a support frame, a fixed frame, and a seedling loading frame. The fixed frame is fixedly installed on the upper end of the support frame, forming a vertical installation space inside. The seedling loading frame includes a frame support body, a door mechanism baffle, a door mechanism switch, and a hooking spring. The left and right ends of the frame support body are open, and two hooking points A1 are arranged opposite each other on the left side of its front and rear ends. The door mechanism baffle is rotatably connected to the left end of the frame support body, and two hooking points A2 are arranged opposite each other on the top of its two ends. Two door mechanism switches are fixedly connected opposite each other to the outer sides of the two ends of the door mechanism baffle. Two hooking springs are respectively connected to two hooking points A1 and two hooking points A2. Multiple seedling loading frames are distributed in the vertical installation space from top to bottom at intervals, and each seedling loading frame is fixedly connected to the fixed frame with the left side lower and the right side higher. The seedling transition mechanism is located on the left side of the seedling loading mechanism. The seedling transition mechanism includes a vertical frame, position sensing switches, a lifting frame, a transition seedling receiving frame, a contact switch, an electric push rod, a vertical drive mechanism, a mechanical push rod, and a gate mechanism stop wheel. The vertical frame includes two vertical beams. A pair of vertical grooves are provided on opposite sides of the two vertical beams, and two sliders are slidably arranged inside the pair of vertical grooves. Multiple position sensing switches are distributed corresponding to multiple seedling loading frames and are fixedly installed on the vertical beams. The lifting frame includes a transverse connecting beam and two connecting arms symmetrically fixedly connected to the upper ends of the transverse connecting beam. The lifting frame is located between the two vertical beams, and the outer ends of the two connecting arms are fixedly connected to the two sliders via two oppositely distributed connecting rods. The transition seedling receiving frame includes a second frame support body, a second gate mechanism baffle, a second gate mechanism switch, and a second hanging spring. The left and right ends of the second frame support body are open structures, and two hanging points B- are provided oppositely on the left side of its front and rear ends. The second gate mechanism baffle is rotatably connected to the frame support. At the left end of body two, two hook points B2 are provided opposite to each other at the top of both ends; two door mechanism switches 2 are fixedly connected opposite to each other to the outer sides of both ends of door mechanism baffle 2; two hook springs 2 are respectively connected to two hook points B1 and two hook points B2; the transition seedling receiving frame is set inside the support frame, and the middle of the front and rear ends of the frame support body 2 is rotatably connected to two connecting arms through two rotating shafts. At the same time, the frame support body 2 has a set swing angle inside the support frame. Under normal conditions, the transition seedling receiving frame is tilted with the left side lower and the right side higher; the contact switch is fixedly installed on the right side of the bottom of the frame support body 2; two electric push rods are set horizontally, and their fixed seats are respectively installed on the two connecting arms; two vertical drive mechanisms are respectively installed on two vertical beams and connected to the two connecting arms, used to drive the support frame to reciprocate vertically; the mechanical push rod is vertically fixedly supported below the contact switch, and a guide wheel is installed at its top; two door mechanism stop wheels are fixedly connected opposite to each other to the lower part of the left end of the two vertical beams through two mounting brackets; The intelligent controller is connected to the position sensing switch, the contact switch, the electric push rod, and the vertical drive mechanism, respectively.

[0005] Furthermore, in order to efficiently and accurately change the vertical displacement of the lifting frame, the vertical drive mechanism includes a drive motor, bearing housings, a lead screw, and a lead screw nut; the drive motor is fixedly installed at the lower end of the right edge of the upright beam; the two bearing housings are respectively fixedly installed at the top and bottom of the right edge of the upright beam; the two ends of the lead screw in the length direction are respectively movably connected to two bearings in the two bearing housings, and the lower end of the lead screw is connected to the output shaft of the drive motor; the lead screw nut is threaded onto the outside of the lead screw and is fixedly connected to the connecting arm.

[0006] Furthermore, in order to enable the support frame to have height adjustment capability so as to better adapt to different models of rice transplanters, the support frame includes a bottom support base and a nested telescopic bracket. The nested telescopic bracket includes a fixed part located at the bottom and a movable part that is vertically slidably assembled in the fixed part, wherein the fixed part is fixedly installed on the bottom support base.

[0007] As a preferred embodiment, the vertical frame further includes bottom longitudinal beams and top transverse beams; the two bottom longitudinal beams are respectively fixedly connected to the lower ends of the two vertical beams; the top transverse beam is fixedly connected between the upper ends of the two vertical beams.

[0008] Furthermore, in order to effectively reduce the resistance during the seedling sliding process and to achieve rapid seedling receiving and discharging operations, the frame support body 1 includes a support frame 1, a seedling separating plate 1, and a rolling wheel 1; multiple seedling separating plates 1 are evenly installed on the support frame 1 along the length direction, and the upper space of the support frame 1 is isolated into multiple seedling carrying spaces 1; multiple sets of rolling wheels 1 are correspondingly distributed in multiple seedling carrying spaces 1, and are fixedly connected to the support frame 1 through multiple wheel brackets 1.

[0009] Furthermore, in order to effectively reduce the resistance during the seedling sliding process and to achieve rapid seedling receiving and discharging operations, the frame support body 2 includes a support frame 2, a seedling separating plate 2, and a rolling wheel 2; multiple seedling separating plates 2 are evenly installed on the support frame 2 along the length direction, and the upper space of the support frame 2 is isolated into multiple seedling carrying spaces 2; multiple sets of rolling wheels 2 are correspondingly distributed in multiple seedling carrying spaces 2, and are fixedly connected to the support frame 2 through multiple wheel brackets 2.

[0010] In this invention, a support frame is provided at the lower part of the fixed frame, which facilitates the fixing of the seedling loading mechanism onto the frame of the rice transplanter. The frame support body is open at both ends, facilitating the loading of the blanket-shaped seedlings from the right opening and the unloading from the left opening. A door mechanism baffle is rotatably connected to the left end of the frame support body, and two hook springs are connected between two hook points A1 on the frame support body and two hook points A2 on the door mechanism baffle. This allows the tension of the two hook springs to act on the door mechanism baffle, preventing it from blocking the left opening of the frame support body and preventing seedlings from accidentally sliding out from the left opening when not in the unloading phase. The rice-loading frame is installed at an angle, lower on the left and higher on the right, within a fixed frame. Simultaneously, the elastic tension of the door mechanism baffle, coupled with the spring-loaded mechanism, allows the loaded, blanket-like rice seedlings to be stably placed on the frame under normal conditions. By pushing the door mechanism switch, the elastic force of the spring-loaded mechanism is overcome, causing the door mechanism baffle to flip and open the left opening of the rice-loading frame, allowing the blanket-like rice seedlings to slide out under their own weight. A pair of vertical grooves are provided on opposite sides of the two upright beams, each containing a slider. The two connecting arms of the lifting frame are connected to the two sliders via two connecting rods, and the two vertical drive mechanisms are connected to the two connecting arms. This allows the lifting frame to reciprocate vertically using the synchronized action of the two vertical drive mechanisms. Multiple position sensors are installed on the upright beam at positions corresponding to multiple seedling loading frames. This allows for easy detection of whether the transition seedling loading frame has moved to the set height level. When the frame is in position, a positioning signal A is sent to the intelligent controller. Upon receiving the positioning signal A, the intelligent controller synchronously controls the two vertical drive mechanisms to stop, keeping the lifting frame at the set height level. Both ends of the frame support body two are open structures, facilitating the loading of blanket-shaped seedlings from the right opening and the unloading of seedlings from the left opening. A door mechanism baffle two is rotatably connected to the left end of the frame support body two. Two hooking springs two are connected between the two hooking points B1 on the frame support body two and the two hooking points B2 on the door mechanism baffle two. The tension of the two hooking springs two acts on the door mechanism baffle two, keeping it blocking the left opening of the frame support body and preventing seedlings from accidentally sliding out of the left opening during non-unloading times.The transition seedling receiving frame is rotatably connected to two connecting arms on the support frame via two rotating shafts, and the transition seedling receiving frame has a set swing angle relative to the support frame. At the same time, a contact switch is installed on the bottom right side of the frame support body two, and a mechanical push rod is set between the lower parts of the two vertical beams. In this way, when the transition seedling receiving frame moves down, when the contact switch contacts the guide wheel at the upper end of the mechanical push rod, the contact switch can send a positioning electrical signal B to the intelligent controller in time. Thus, the intelligent controller can synchronously control the two vertical drive mechanisms to stop moving. In this way, the support frame and the transition seedling receiving frame can be kept at the height position ready to deliver seedlings, waiting for the seedling shortage detection switch on the rice transplanter to send a seedling shortage signal. Therefore, the seedling delivery operation can be carried out only after the seedling box is in a seedling shortage state. Simultaneously, upon receiving a seedling shortage signal, the controller can further activate the two vertical drive mechanisms, driving the lifting frame and transition seedling receiving frame to continue moving downwards. During this process, supported by the mechanical push rod, the transition seedling receiving frame will swing to the left at a set angle, thereby increasing the tilt angle of the transition seedling receiving frame and facilitating rapid seedling delivery after the second gate mechanism baffle opens. Two gate mechanism stop wheels are installed at the lower part of the two vertical beams, which can interact with the second gate mechanism switch. When the lifting frame moves to its maximum downward position, the two gate mechanism stop wheels will push the second gate mechanism switch to overcome the elastic force of the second hook spring, causing the second gate mechanism baffle to flip and opening the left opening end of the frame support body, allowing the blanket-like seedlings in the transition seedling receiving frame to quickly slide into the seedling box of the rice transplanter to complete the seedling delivery operation.

[0011] This device is highly intelligent and can autonomously complete the seedling removal operation of multi-layer seedling racks and deliver the seedlings into the seedling box of the rice transplanter at the appropriate time, thus completing the autonomous seedling delivery operation. It can work with the rice transplanter to complete the autonomous seedling loading operation and can effectively cooperate with the rice transplanter to complete the efficient replanting operation, which is conducive to improving the planting efficiency of rice and has good economic and social benefits. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a side view of the invention; Figure 3 This is a schematic diagram of the seedling loading frame in this invention; Figure 4 This is a schematic diagram of the transition rice-grafting frame in this invention.

[0013] In the diagram: 1. Seedling loading mechanism; 2. Seedling transition mechanism; 3. Support frame; 4. Fixed frame; 5. Seedling loading rack; 6. Support frame one; 7. Seedling separating upright plate one; 8. Rolling wheel one; 9. Door mechanism baffle one; 10. Door mechanism switch one; 11. Hanging point A one; 12. Hanging point A two; 13. Hanging tension spring one; 14. Vertical frame; 15. Lifting frame; 16. Transition seedling receiving frame; 17. Upright beam; 18. Vertical chute; 19. Connecting arm; 20. Support frame two; 21. Seedling separating upright plate two; 22. Rolling wheel two; 23. Door mechanism baffle two; 24. Door mechanism switch two. 25. Hanging spring two; 26. Hanging point B one; 27. Hanging point B two; 28. Electric jack; 29. ​​Mechanical jack; 30. Vertical drive mechanism; 31. Connecting bracket; 32. Door mechanism stop wheel; 33. Guide wheel; 34. Drive motor; 35. Bearing seat; 36. Lead screw; 37. Lead screw nut; 38. Bottom support seat; 39. Nested telescopic bracket; 40. Bottom longitudinal beam; 41. Top transverse beam; 42. Contact switch; 43. Frame support body one; 44. Frame support body two; 45. Mounting bracket; 46. Wheel bracket one; 47. Wheel bracket two. Detailed Implementation

[0014] The invention will now be further described with reference to the accompanying drawings.

[0015] like Figures 1 to 4 As shown, the present invention provides an intelligent rice self-loading device, including a loading mechanism 1, a seedling transition mechanism 2 and an intelligent controller; The seedling loading mechanism 1 includes a support frame 3, a fixed frame 4, and a seedling loading frame 5; The fixed frame 4 is fixedly installed on the upper end of the support frame 3, and a vertical installation space is formed inside it to support each seedling frame 5. Preferably, the fixed frame 4 can be set with installation points at different intervals along the height direction to facilitate flexible installation of the seedling frame 5. The seedling loading frame 5 includes a frame support body 43, a door mechanism baffle 9, a door mechanism switch 10, and a hooking spring 13. The left and right ends (width direction) of the frame support body 43 are open structures, and two hooking points A-11 are arranged opposite each other on the left side of its front and rear ends (length direction). The door mechanism baffle 9 is rotatably connected to the left end of the frame support body 43 through a rotating shaft, and two hooking points A-12 are arranged opposite each other on the top of its two ends. The two door mechanism switches 10 are fixedly connected to the outer sides of the two ends of the door mechanism baffle 9, and their length direction extends to the lower left side of the door mechanism baffle 9. The two hooking springs 13 are respectively connected to the two hooking points A-11 and the two hooking points A-12. Under normal conditions, the two hooking springs 13 provide tension to the upper end of the door mechanism baffle 9 through the two hooking points A-12, so that it remains in a blocking state on the left end of the frame support body 43, so as to ensure that the blanket-like seedlings inside will not accidentally slip out. Multiple seedling loading frames 5 are distributed in the vertical installation space from top to bottom at intervals, and each seedling loading frame 5 is fixedly connected to the fixed frame 4 with the left side lower and the right side higher. The seedling transition mechanism 2 is located on the left side of the seedling loading mechanism 1; the seedling transition mechanism 2 includes a vertical frame 14, a position sensing switch, a lifting frame 15, a transition seedling receiving frame 16, a contact switch, an electric push rod 28, a vertical drive mechanism 30, a mechanical push rod 29, and a door mechanism stop wheel 32. The vertical frame 14 serves as a support and includes two vertical beams 17. The two vertical beams 17 have a pair of vertical grooves 18 on opposite sides, and two sliders are slidably arranged inside the pair of vertical grooves 18. Multiple position sensors are distributed corresponding to multiple seedling racks 5 and are fixedly installed on the upright beam 17. The position sensors are used to cooperate with the transition seedling rack 16. When the transition seedling rack 16 is detected to have reached the designated position in the height direction, the position sensors send a position signal A to the intelligent controller. After receiving the position signal A, the intelligent controller first synchronously controls the two drive motors 34 to stop, and then synchronously controls the telescopic rods of the two electric push rods 28 to extend to a set length. The extended electric push rods 28 push the two door mechanism switches 10 to overcome the elastic force of the two hanging springs 13, causing the door mechanism baffle 9 to flip and open the left opening end of the frame support body 43. In this way, the blanket-shaped seedlings located in the frame support body 43 can slide down into the transition seedling rack 16 under the action of gravity.

[0016] The lifting frame 15 includes a transverse connecting beam and two connecting arms 19 symmetrically fixedly connected to the upper ends of the transverse connecting beam; the lifting frame 15 is disposed between two vertical beams 17, and the outer ends of the two connecting arms 19 are fixedly connected to two sliders through two relatively distributed connecting rods, wherein the connecting rods are horizontally arranged; in this way, the lifting frame 15 can achieve sliding cooperation with the two vertical beams 17 in the vertical direction. The transition seedling frame 16 includes a frame support body 44, a door mechanism baffle 23, a door mechanism switch 24, and a hanging spring 25. The frame support body 44 has an open structure at both ends, and two hanging points B-26 are arranged opposite each other on the left side of its front and rear ends. The door mechanism baffle 23 is rotatably connected to the left end of the frame support body 44 via a rotating shaft, and two hanging points B-27 are arranged opposite each other on the top of its two ends. The two door mechanism switches 24 are fixedly connected to the outer sides of the two ends of the door mechanism baffle 23, and their length direction extends to the lower right side of the door mechanism baffle 23. The two hanging springs 25 are respectively connected to the two hanging points B-26 and the two hanging points B-27. Under normal conditions, the two hanging springs 25 provide tension to the upper end of the door mechanism baffle 23 through the two hanging points B-27, so that it remains in a blocking state on the left end of the frame support body 44, so as to ensure that the blanket-like seedlings inside will not accidentally slip out. The transition rice-receiving frame 16 is set inside the support frame 15, and the middle of the front and rear ends of the frame support body 2 44 is rotatably connected to the two connecting arms 19 through two rotating shafts. At the same time, the frame support body 2 44 has a set swing angle inside the support frame 15. Under normal conditions, the transition rice-receiving frame 16 is tilted with the left side lower and the right side higher. Specifically, a right limiting block can be installed on the right side of the transverse connecting beam in the lifting frame 15 to limit the right-side flipping of the bottom right side of the frame support body 44 in the transition seedling frame 16. At the same time, a left limiting block can be installed on the left side of the transverse connecting beam in the lifting frame 15 to limit the left-side flipping of the bottom left side of the frame support body 44 in the transition seedling frame 16. The height of the left limiting block is lower than the height of the right limiting block. Meanwhile, two tension springs are connected between the right end of the frame support body 44 and the transverse connecting beam in the lifting frame 15. In this way, the frame support body 44 can swing relative to the lifting frame 15 only within a certain angle range. Under normal conditions, the bottom right side of the frame support body 44 is in contact with the right limiting block, thereby allowing the transition seedling frame 16 to maintain a tilted state with the left side lower than the right side under normal conditions.

[0017] The contact switch 42 is fixedly installed on the right side of the bottom of the frame support body 24, and is used to sense the state of the distance mechanical push rod 29 by contact. Two electric top rods 28 are set horizontally, and their fixed seats are respectively installed on two connecting arms 19. Their telescopic rods are respectively engaged with two door mechanism switches 10 on each seedling loading frame 5. Two vertical drive mechanisms 30 are respectively mounted on two vertical beams 17 and connected to two connecting arms 19, for driving the lifting frame 15 to reciprocate vertically; The mechanical push rod 29 is vertically fixedly supported below the contact switch 42, and its lower end is fixedly connected to the lower part of the two upright beams 17 through the connecting bracket 31. The top of its top is equipped with a guide wheel 33. During the contact between the guide wheel 33 of the mechanical push rod 29 and the frame support body 44, there is a supporting effect on the bottom right side of the transition seedling frame 16, which causes the transition seedling frame 16, which is normally tilted with the left side lower and the right side higher, to flip to the left until the maximum flipping angle of the transition seedling frame 16 is reached and then stops.

[0018] Two door mechanism stop wheels 32 are fixedly connected to the lower part of the left end of two vertical beams 17 by two mounting brackets 45, respectively cooperating with two door mechanism switches 24; The intelligent controller is connected to the position sensing switch, the contact switch, the electric push rod 29 and the vertical drive mechanism 30 respectively. Preferably, the intelligent controller can be a PLC controller.

[0019] To efficiently and accurately change the vertical displacement of the lifting frame, the vertical drive mechanism 30 includes a drive motor 34, bearing seats 35, a lead screw 36, and a lead screw nut 37. The drive motor 34 is fixedly installed at the lower end of the right edge of the upright beam 17. The two bearing seats 35 are respectively fixedly installed at the top and bottom of the right edge of the upright beam 17. The two ends of the lead screw 36 in the length direction are movably connected to two bearings in the two bearing seats 35, and the lower end of the lead screw 36 is connected to the output shaft of the drive motor 34. The lead screw nut 37 is threaded onto the outside of the lead screw 36 and is fixedly connected to the connecting arm 19. Preferably, the drive motor 34 is a servo motor.

[0020] To enable the support frame to be height-adjustable and better adaptable to different models of rice transplanters, the support frame 3 includes a bottom support base 38 and a nested telescopic bracket 39. The nested telescopic bracket 39 includes a fixed part at the bottom and a movable part vertically slidably mounted within the fixed part. The fixed part is fixedly installed on the bottom support base 38. The nested telescopic bracket 39 can be flexibly adjusted in height to accommodate the differences in vertical dimensions of different models of rice transplanters.

[0021] As a preferred embodiment, the vertical frame 14 further includes bottom longitudinal beams 40 and top transverse beams 41; the two bottom longitudinal beams 40 are respectively fixedly connected to the lower ends of the two vertical beams 17; the top transverse beam 41 is fixedly connected between the upper ends of the two vertical beams 17. Preferably, the distance between the front and rear ends of the vertical frame 14 is greater than the distance between the front and rear ends of the fixed frame 4; To effectively reduce the resistance during the seedling sliding process and to achieve rapid seedling receiving and transplanting operations, the frame support body 43 includes a support frame 6, seedling partition plates 7, and rolling wheels 8. Multiple seedling partition plates 7 are evenly installed along the length of the support frame 6, isolating the upper space of the support frame 6 into multiple seedling carrying spaces. The seedling partition plates 7 are used to limit the lateral displacement of the blanket-like seedlings in different seedling carrying spaces. Preferably, the number of seedling carrying spaces is 6 or 8 to adapt to the rice transplanter. Multiple sets of rolling wheels 8 are correspondingly distributed in the multiple seedling carrying spaces and are fixedly connected to the support frame 6 through multiple wheel brackets 46. Preferably, the number of rolling wheels 8 is 3 sets, and the axis of the rolling wheels 8 is connected to the rotating shaft on the wheel bracket 46 through a bearing to effectively reduce the resistance during the transfer process. Among them, the seedling carrying space is used to carry the blanket-shaped seedlings, and the rolling wheel 8 can effectively reduce the friction during the sliding process of the blanket-shaped seedlings. In this way, after the door mechanism baffle 9 is opened, it can ensure that the blanket-shaped seedlings can slide down quickly under the action of gravity.

[0022] To effectively reduce the resistance during the seedling sliding process and to achieve rapid seedling receiving and transplanting operations, the frame support body 24 includes a support frame 20, seedling partition plates 21, and rolling wheels 22. Multiple seedling partition plates 21 are evenly installed along the length of the support frame 20, isolating the upper space of the support frame 20 into multiple seedling carrying spaces 2. The seedling partition plates 21 are used to limit the lateral displacement of the blanket-like seedlings in different seedling carrying spaces 2. Preferably, the number of seedling carrying spaces 2 is 6 or 8 to adapt to the rice transplanter. Multiple sets of rolling wheels 22 are correspondingly distributed in the multiple seedling carrying spaces 2 and are fixedly connected to the support frame 20 through multiple wheel brackets 27. Preferably, the number of rolling wheels 22 is 3 sets, and the axis of the rolling wheels 22 is connected to the rotating shaft on the wheel bracket 22 through a bearing to effectively reduce the resistance during the transport process. Among them, the seedling carrying space 2 is used to carry the blanket-shaped seedlings, and the rolling wheel 22 can effectively reduce the friction during the sliding process of the blanket-shaped seedlings. In this way, after the door mechanism baffle 22 is opened, it can ensure that the blanket-shaped seedlings can slide down quickly under the action of gravity.

[0023] Working principle: This intelligent rice self-loading device is used in conjunction with a high-speed rice transplanter. The seedling transition mechanism 2 is fixedly installed on the transplanter frame via two bottom longitudinal beams 40. The seedling loading mechanism 1 is fixedly installed on the transplanter frame via a bottom support 38, and multiple seedling carrying spaces on each seedling loading frame 5 are respectively loaded with multiple blanket-shaped seedlings. At the same time, the intelligent controller is connected to the seedling shortage detection switch and the pull-wire displacement sensor installed on the seedling box of the transplanter, and is used to receive the seedling shortage signal issued by the seedling shortage detection switch and the alignment signal issued by the pull-wire displacement sensor. Two drive motors 34 are started synchronously and driven to rotate two lead screws 36 in the forward direction. This drives two lead screw nuts 37 to move the lifting frame 15 and the transition seedling frame 16 upward. When the position sensor switch of the corresponding highest layer seedling frame 5 detects the position of the transition seedling frame 16, it sends a position signal A to the intelligent controller. After receiving the position signal A, the intelligent controller first synchronously controls the two drive motors 34 to stop, and then synchronously controls the telescopic rods of the two electric push rods 28 to fully extend. The extension time A is then set. The two extended electric push rods 28 push the two door mechanism switches 10 on the seedling frame 5. Under the pushing action of the electric push rods 28, the door mechanism switches 10 overcome the elastic force of the connecting spring 13 and drive the door mechanism baffle 9 to flip, opening the left opening end of the frame support body 43. In this way, multiple blanket-shaped seedlings located in the frame support body 43 will slide down under the action of gravity and slide into the multiple seedling carrying space 2 in the transition seedling frame 16 through the right end of the frame support body 44. After time A is set, the intelligent controller synchronously controls the two electric push rods 28 to fully retract. Under the elastic force of the two connecting springs 13, the door mechanism baffle 9 returns to the blocked closed state. After the electric push rods 28 are fully retracted, the intelligent controller synchronously controls the two drive motors 34 to start working, driving the two lead screws 36 to rotate in the opposite direction, which in turn drives the two lead screw nuts 37 to move the lifting frame 15 and the transition seedling receiving frame 16 downward. When the contact switch 42 contacts the mechanical push rod 29, it sends a positioning signal B to the intelligent controller. The intelligent controller synchronously controls the two drive motors 34 to stop, waiting for the transplanter's seedling shortage detection switch to issue a "short seedling" signal. When there are less than 1 / 3 seedlings in the seedling box, the seedling shortage detection switch will issue a seedling shortage signal. At the same time, the pull-wire displacement sensor monitors the position of the seedling box in a left-right reciprocating motion in real time. Based on the position and motion speed parameters, it determines the timing for the transition seedling receiving frame 16 to deliver seedlings to the transplanter's seedling box.Before the seedling shortage detection switch issues a seedling shortage signal, the transition seedling receiving frame 16 has already stopped at the position where it just touches the mechanical top rod 29. Once a seedling shortage signal is issued, and the seedling box is detected to have reached a certain set position (this set position is adjusted according to the operating speed of the seedling box; generally, the logic is: when the reciprocating speed of the seedling box is faster, the distance between the set position and the transition seedling receiving frame 16 is larger, and vice versa), the intelligent controller synchronously controls the two drive motors 34 to start working at a faster speed for the set time, and drives the two lead screws 36 to rotate in opposite directions, thereby driving the two lead screw nuts 37 to drive the lifting frame 15 and the transition seedling receiving frame 16 to continue moving downwards until they reach the lowest downward position. During this process, after the bottom right side of the transition seedling frame 16 contacts the guide wheel 33 at the upper end of the mechanical top rod 29, the transition seedling frame 16 will be supported by the mechanical top rod 29, causing the downward transition seedling frame 16 to flip to the left simultaneously. After the two door mechanism switches 24 touch the two door mechanism stop wheels 32, they are blocked by the two door mechanism stop wheels 32. The door mechanism switches 24 overcome the elastic force of the hook spring 25 and drive the door mechanism baffle 23 to flip, quickly opening the left opening end of the frame support body 244. In this way, multiple blanket-shaped seedlings located in the frame support body 244 will slide down into the seedling box of the rice transplanter under the action of gravity, completing the autonomous seedling loading process.

[0024] After using the transition seedling receiving frame 16 to complete the seedling taking and delivery of the seedlings from the top seedling loading frame 5 to the seedling box of the rice transplanter, the above process is repeated to perform the seedling taking and delivery of the next upper seedling loading frame 5. By adopting the method of taking and delivering seedlings layer by layer from top to bottom, the instability of the rice transplanter due to its high center of gravity can be prevented.

Claims

1. An intelligent rice self-loading device, comprising a loading mechanism (1), characterized in that, It also includes a seedling transition mechanism (2) and an intelligent controller; The seedling loading mechanism (1) includes a support frame (3), a fixed frame (4), and a seedling loading frame (5); the fixed frame (4) is fixedly installed on the upper end of the support frame (3), forming a vertical installation space inside; the seedling loading frame (5) includes a frame support body (43), a door mechanism baffle (9), a door mechanism switch (10), and a hanging spring (13); the left and right ends of the frame support body (43) are open structures, and two hanging points A (11) are arranged opposite each other on the left side of its front and rear ends; the door mechanism baffle (9) The frame support (43) is flipped and connected to the left end of the frame support (43), and two hook points A2 (12) are provided opposite to each other at the top of its two ends; two door mechanism switches (10) are fixedly connected to the outside of the two ends of the door mechanism baffle (9); two hook springs (13) are respectively connected to two hook points A1 (11) and two hook points A2 (12); multiple seedling racks (5) are distributed in the vertical installation space from top to bottom, and each seedling rack (5) is fixedly connected to the fixed frame (4) with the left side lower and the right side higher. The seedling transition mechanism (2) is located on the left side of the seedling loading mechanism (1); the seedling transition mechanism (2) includes a vertical frame (14), a position sensing switch, a lifting frame (15), a transition seedling receiving frame (16), a contact switch, an electric push rod (28), a vertical drive mechanism (30), a mechanical push rod (29), and a door mechanism stop wheel (32); the vertical frame (14) includes two vertical beams (17); the two vertical beams (17) have a pair of vertical grooves (18) on opposite sides, and two sliders are slidably arranged inside the pair of vertical grooves (18); multiple position sensing switches are distributed corresponding to multiple seedling loading frames (5) and are fixedly installed on the vertical beams (17); the lifting frame (15) Includes a transverse connecting beam and two connecting arms (19) symmetrically fixedly connected above both ends of the transverse connecting beam; the lifting frame (15) is set between two vertical beams (17), and the outer ends of the two connecting arms (19) are fixedly connected to two sliders through two relatively distributed connecting rods; the transition seedling frame (16) includes a frame support body two (44), a door mechanism baffle two (23), a door mechanism switch two (24), and a hanging spring two (25); the left and right ends of the frame support body two (44) are open structures, and two hanging points B- (26) are arranged oppositely on the left side of its front and rear ends; the door mechanism baffle two (23) is rotatably connected to the left end of the frame support body two (44), and the top of its two ends Two hook points B2 (27) are provided opposite to each other; two door mechanism switches B2 (24) are fixedly connected to the outer sides of the two ends of the door mechanism baffle B2 (23); two hook springs B2 (25) are respectively connected to two hook points B1 (26) and two hook points B2 (27); the transition seedling frame (16) is set inside the support frame (15), and the middle of the front and rear ends of the frame support body B2 (44) is rotatably connected to two connecting arms (19) through two rotating shafts. At the same time, the frame support body B2 (44) has a set swing angle in the support frame (15). Under normal conditions, the transition seedling frame (16) is tilted with the left lower and the right higher; the contact switch (42) is fixedly installed on the frame support. On the right side of the bottom of body 2 (44); two electric top rods (28) are set horizontally, and their fixed seats are respectively installed on two connecting arms (19), and their telescopic rods are respectively engaged with two door mechanism switches (10) on each seedling frame (5); two vertical drive mechanisms (30) are respectively installed on two upright beams (17) and respectively connected to two connecting arms (19), for driving the lifting frame (15) to move back and forth vertically; the mechanical top rod (29) is vertically fixedly supported below the contact switch (42), and a guide wheel (33) is installed at its top; the two door mechanism stop wheels (32) are relatively fixedly connected to the lower part of the left end of the two upright beams (17) through two mounting brackets (45); The intelligent controller is connected to the position sensing switch, the contact switch, the electric push rod (28), and the vertical drive mechanism (30), respectively.

2. The intelligent rice self-loading device according to claim 1, characterized in that, The vertical drive mechanism (30) includes a drive motor (34), bearing housings (35), a lead screw (36), and a lead screw nut (37); the drive motor (34) is fixedly installed at the lower end of the right edge of the upright beam (17); the two bearing housings (35) are respectively fixedly installed at the top and bottom of the right edge of the upright beam (17); the two ends of the lead screw (36) in the length direction are respectively movably connected to the two bearings in the two bearing housings (35), and the lower end of the lead screw (36) is connected to the output shaft of the drive motor (34); the lead screw nut (37) is threadedly fitted onto the outside of the lead screw (36), and it is fixedly connected to the connecting arm (19).

3. The intelligent rice self-loading device according to claim 1, characterized in that, The support frame (3) includes a bottom support base (38) and a nested telescopic bracket (39). The nested telescopic bracket (39) includes a fixed part located at the bottom and a movable part vertically slidably assembled in the fixed part, wherein the fixed part is fixedly installed on the bottom support base (38).

4. The intelligent rice self-loading device according to claim 3, characterized in that, The vertical frame (14) also includes a bottom longitudinal beam (40) and a top crossbeam (41); the two bottom longitudinal beams (40) are fixedly connected to the lower ends of the two vertical beams (17); the top crossbeam (41) is fixedly connected between the upper ends of the two vertical beams (17).

5. The intelligent rice self-loading device according to claim 4, characterized in that, The frame support body (43) includes a support frame (6), a seedling separating plate (7), and a rolling wheel (8); multiple seedling separating plates (7) are evenly installed on the support frame (6) along the length direction, and the upper space of the support frame (6) is isolated into multiple seedling carrying spaces; multiple sets of rolling wheels (8) are correspondingly distributed in multiple seedling carrying spaces, and are fixedly connected to the support frame (6) through multiple wheel brackets (46).

6. The intelligent rice self-loading device according to claim 5, characterized in that, The frame support body 2 (44) includes a support frame 2 (20), a seedling separating plate 2 (21), and a rolling wheel 2 (22); multiple seedling separating plates 2 (21) are evenly installed on the support frame 2 (20) along the length direction, and the upper space of the support frame 2 (20) is isolated into multiple seedling carrying spaces 2; multiple sets of rolling wheels 2 (22) are correspondingly distributed in multiple seedling carrying spaces 2, and are fixedly connected to the support frame 2 (20) through multiple wheel brackets 2 (47).

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