Rice seedling rolling and seedling tray recycling machine

Abstract

The invention discloses a rice seedling rolling and seedling tray recycling machine, and relates to the technical field of agricultural machinery. A control early warning mechanism is mounted on the inner lower side of the frame and is used for controlling and early warning; a seedling rolling mechanism and a seedling tray recycling mechanism are respectively mounted on the front side of the frame, the seedling rolling mechanism is used for rolling seedlings into a cylindrical shape, and the seedling tray recycling mechanism is used for recycling a seedling tray belt; a seedling conveying and receiving mechanism is mounted in the frame and is used for conveying and storing seedlings; according to the device, a seedling tray is shoveled, meanwhile, seedlings can be separated from the seedling tray, the seedling tray can be recycled, meanwhile, control is accurate, and time and manpower can be saved; the three bionic clamping hands are adopted, the working efficiency is improved, rubber cushions are placed in the clamping hands, and the completeness of seedlings can be guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a rice seedling roll and seedling tray recovery machine. Background Art

[0002] Rice factory seedling raising is a production method of intensive rice seedling raising using modern agricultural equipment, and is an important part of modern agricultural engineering. Due to the widespread popularity of rice factory seedling raising technology and mechanical transplanting technology, rice seedling raising in rice seedling trays has become a commonly used method. After the rice seedlings are raised in the rice seedling trays, the seedlings need to be separated from the rice seedling trays in the later stage, but the existing methods have the following disadvantages: First, manual operation is adopted. During manual operation, the seedling tray needs to be separated from the soil first, and then the seedlings are separated from the seedling tray, and finally the seedlings are stored and the seedling tray is recovered. During operation, when the seedlings are separated from the seedling tray, it is easy to cause damage to the seedlings or the seedling tray, and the operation is time-consuming and laborious.

[0003] Second, mechanical operation is adopted, but the existing mechanical equipment is semi-automatic, and is divided into two devices for lifting the seedling tray and recovering the seedling tray, which need to be operated separately. After the seedling tray is lifted by the equipment, the seedlings and the seedling tray need to be separated manually, and the seedlings are stored after separation, and then the seedling tray is recovered by the seedling tray recovery equipment. However, the seedlings are easily damaged when manually separating them, and the operation occupies a large area and is not easy to operate.

[0004] Based on the above shortcomings, a device is needed that can separate the seedlings and the seedling tray and recycle the seedling tray. Summary of the invention

[0005] To solve the problems mentioned in the above background technology, the purpose of the present invention is to provide a rice seedling rolling and seedling tray recovery machine, which is convenient for separating the seedlings from the seedling tray and can also recover the seedling tray.

[0006] A rice seedling rolling and seedling tray recovery machine of the present invention comprises a vehicle frame, a control and early warning mechanism, a seedling rolling mechanism, a seedling tray recovery mechanism, and a seedling conveying and receiving mechanism; A control and warning mechanism is installed on the inner lower side of the frame, and the control and warning mechanism is used for control and warning; The front side of the frame is respectively equipped with a seedling rolling mechanism and a seedling tray recovery mechanism, wherein the seedling rolling mechanism is used to roll the seedlings into a cylindrical shape, and the seedling tray recovery mechanism is used to recover the seedling tray belt; A seedling conveying and receiving mechanism is installed inside the frame, and the seedling conveying and receiving mechanism is used for conveying and storing the seedlings.

[0007] Preferably, the frame includes a vehicle body, wheels, a seedling belt drive conveying bracket, and a seedling tray belt drive conveying bracket; wheels are installed at the bottom of the vehicle body, a seedling tray belt drive conveying bracket is installed on the front lower side of the vehicle body, and a seedling belt drive conveying bracket is installed on the front upper side of the vehicle body.

[0008] Preferably, the control warning mechanism includes a warning light, a power supply and a control box; the warning light, the power supply and the control box are connected by bolts, and the power supply and the control box are fixedly connected to the vehicle body by bolts.

[0009] Preferably, the seedling rolling mechanism includes a stepper motor, a triangular slide rail, a bionic gripper, a gripper movable slide rail, a bionic arm, a drive motor 1, an electric linear guide rail, and an end cover; the stepper motor is installed on the seedling belt transmission and conveying bracket of the frame, the triangular slide rail and the stepper motor are fixedly connected by bolts, the bionic gripper is connected to the gripper movable slide rail by a thrust screw, and the gripper movable slide rail is connected to the bionic arm by a threaded connection; the bionic arm is slidably connected to the triangular slide rail through a slide groove, the electric linear guide rail is connected to the end cover by bolts, the end cover is connected to the triangular slide rail by bolts, and the drive motor 1 is connected to the bionic arm by bolts.

[0010] Preferably, the seedling tray recovery mechanism includes a negative pressure mechanism and a seedling tray belt transmission mechanism, the negative pressure mechanism is connected to the seedling tray belt transmission mechanism, the seedling tray belt transmission mechanism includes a front shovel, a seedling tray conveyor belt, a slide rail frame, a tray table, a seedling tray tray, an electric lifter, a second drive motor, and a sensor; the front shovel and the small pulley shaft of the seedling tray conveyor belt are clearance-matched, the seedling tray conveyor belt is installed on the seedling tray belt transmission transmission bracket of the vehicle body, the slide rail frame is embedded in the vehicle body through a track, the tray table is fixedly connected to the vehicle body by bolts, the seedling tray is connected to the electric lifter by threads, the electric lifter is fixedly connected to the vehicle body by bolts, the second drive motor is fixedly connected to the vehicle body by bolts, the second drive motor is connected to the transmission shaft of the seedling tray conveyor belt, and the sensor is fixedly connected to the vehicle body by bolts.

[0011] Preferably, the negative pressure mechanism includes a gas bus, a solenoid valve assembly, a vacuum generator, a straight-through regulating valve, an air compressor, an oil-water separator, and a suction cup; the gas bus, the solenoid valve assembly, the vacuum generator, the straight-through regulating valve, the air compressor and the seedling tray belt drive transmission bracket are fixedly connected by bolts, the oil-water separator and the air compressor are fixedly connected by bolts, and the front shovel, the gas bus, the solenoid valve assembly, the vacuum generator, the straight-through regulating valve, the oil-water separator, and the suction cup are all connected by a hose.

[0012] Preferably, a plurality of mounting holes are provided on the front side of the upper end surface of the front shovel, and suction cups are installed in the mounting holes, and the suction cups are vacuum suction cups.

[0013] Preferably, the seedling conveying and receiving mechanism includes a driving motor three, a seedling conveyor belt, and a seedling receiving box; the seedling conveyor belt is installed on the seedling belt transmission and conveying bracket through a rotating shaft, the driving motor three is installed on the vehicle body through bolts, the shaft of the driving motor three is connected to the rotating shaft of the seedling conveyor belt, the seedling receiving box is arranged inside the vehicle body, and the seedling receiving box is arranged at the rear end of the seedling conveyor belt.

[0014] Preferably, a support plate is installed at the bottom of the seedling box, and the upper end of the sliding lifting platform is connected to the bottom of the support plate.

[0015] Compared with the prior art, the invention has the following beneficial effects: the invention is used for rolling seedlings and recovering seedling trays of hard blanket-like seedling trays, and the seedling trays can be scooped up through the cooperation of the vehicle frame, the control and early warning mechanism, the seedling rolling mechanism, the seedling tray recovery mechanism, and the seedling conveying and receiving mechanism, and the seedling trays can be separated and recovered at the same time, and the control is precise, which can save time and manpower. The specific advantages are: 1. The seedling rolling mechanism adopts three bionic clamping methods to improve work efficiency. Rubber pads are placed inside the clamping hands to ensure the integrity of the seedlings.

[0016] 2. The drive motor and electric linear guide used are both compactly designed, with the characteristics of low cost and high economic benefit, making them more flexible and light during use.

[0017] 3. A small boss is installed on the seedling tray conveyor belt to prevent the seedling tray from sliding down, thereby improving the transmission efficiency of the seedling tray. The slide rail frame adopted by the seedling tray recovery mechanism realizes the smooth movement of the seedling tray along the track, which not only improves the efficiency of seedling tray recovery, but also effectively reduces the investment in labor costs.

[0018] 4. A large baffle is installed on the seedling conveyor belt to prevent the seedlings from spreading and sliding down, making the seedling transmission more stable. The seedling conveying and receiving mechanism used can control the seedling box to move up and down and reciprocate through sensors to achieve accurate docking of the seedlings.

[0019] 5. The negative pressure mechanism is used to fix the seedling tray more firmly, which not only facilitates its recycling and reuse, but also significantly improves the smoothness of the seedling curling process.

[0020] 6. The tray table used is one-way movable, which effectively ensures the stability of the seedling tray during the receiving process, thereby avoiding the accidental falling of the seedling tray. The seedling tray recovery mechanism is equipped with an electric lifter, which can quickly lift the seedling tray upward to achieve rapid stacking of the seedling tray.

[0021] 7. The control system of the control and early warning mechanism is based on PLC (Programmable Logic Controller) and is equipped with an Internet of Things communication module. It supports network connection with a smartphone or computer through a rail interface, allowing users to monitor the working status of the equipment in real time and ensure the accuracy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0023] Figure 1 is an axonometric view of the present invention; Figure 2 It is a front view of the present invention; Figure 3 is another axonometric view of the present invention; Figure 4 A bottom view of the present invention; Figure 5 It is an axonometric diagram of the seedling rolling mechanism in the present invention; Figure 6 It is a front view of the seedling rolling mechanism in the present invention; Figure 7 Another axonometric view of the seedling rolling mechanism of the present invention; Figure 8 It is an axonometric view of the front shovel of the present invention; Fig. 9 It is a front view of the front shovel of the present invention; Fig.10 It is the right side view of the front shovel in the present invention.

[0024] In the figure: 1-vehicle body; 101-wheel; 102-seedling belt transmission and conveying support; 103-seedling tray belt transmission and conveying support; 21- warning light; 22- power supply and control box; 31-stepping motor; 32-triangular slide rail; 33-bionic gripper; 34-gripper moving slide rail; 35-bionic arm; 36-driving motor 1; 37-electric linear guide rail; 38-end cover; 41-front shovel; 42-seedling tray conveyor belt; 43-gas bus; 44-solenoid valve assembly; 45-vacuum generator; 46-through regulating valve; 47-air compressor; 48-oil-water separator; 49-suction cup; 401-slide rail rack; 402-tray table; 403-seedling tray; 404-electric lifter; 405-driving motor 2; 406-sensor; 51-driving motor three; 52-seedling conveyor belt; 53-seedling receiving box. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0026] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0027] like Figures 1 to 10 As shown, this specific embodiment adopts a control and early warning mechanism to achieve control and early warning, and specifically adopts the following technical solutions: it includes a frame, a control and early warning mechanism, and the control and early warning mechanism is installed on the inner lower side of the frame, and the control and early warning mechanism is used for control and early warning; the frame includes a vehicle body 1, wheels 101, a seedling belt transmission and conveying bracket 102, and a seedling tray belt transmission and conveying bracket 103; wheels 101 are installed on the bottom of the vehicle body 1, and the wheels 101 can realize the movement of the vehicle body 1, and a seedling tray belt transmission and conveying bracket 103 is installed on the front lower side of the vehicle body 1, and the seedling tray belt transmission and conveying bracket 103 is convenient for realizing the installation of the seedling tray recovery mechanism, and a seedling belt transmission and conveying bracket 102 is installed on the front upper side of the vehicle body 1, and the seedling belt transmission and conveying bracket 102 can realize the installation of the seedling tray recovery mechanism; as shown in FIG. Figure 3 As shown, the control warning mechanism includes a warning light 21 and a power supply and control box 22; the warning light 21 and the power supply and control box 22 are connected by bolts, the warning light 21 is used for warning during control, and is convenient for alarm, the power supply and control box 22 is fixedly connected to the vehicle body 1 by bolts, and the power supply control box 22 can realize rapid control and provide power. At the same time, the control system of the control warning mechanism is based on PLC (programmable logic controller) and is equipped with an Internet of Things communication module, which supports network connection with a smart phone or computer through a guide rail interface, so that users can monitor the working status of the equipment in real time to ensure the accuracy of the operation.

[0028] like Figures 1 to 4As shown, in this specific embodiment, the seedlings are rolled up by a seedling rolling mechanism, so that the seedlings are separated from the seedling tray, and the integrity of the seedlings can be ensured at the same time, and the seedlings are transported by a seedling transporting and receiving mechanism. The following technical scheme is specifically adopted: it includes a seedling rolling mechanism and a seedling transporting and receiving mechanism, the front side of the frame is equipped with a seedling rolling mechanism, the seedling rolling mechanism is used to roll the seedlings into a cylindrical shape, the inside of the frame is equipped with a seedling transporting and receiving mechanism, and the seedling transporting and receiving mechanism is used for transporting and storing the seedlings; as shown in FIG. Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, the seedling rolling mechanism includes a stepper motor 31, a triangular slide rail 32, a bionic gripper 33, a gripper moving slide rail 34, a bionic arm 35, a drive motor 36, an electric linear guide rail 37, and an end cover 38; the stepper motor 31 is installed on the seedling belt transmission and conveying bracket 102 of the frame 1, the triangular slide rail 32 is fixedly connected to the stepper motor 31 by bolts, the stepper motor 31 drives the triangular slide rail 32 to rotate, the bionic gripper 33 is connected to the gripper moving slide rail 34 by a thrust screw, and the bionic arm 35 is connected to the bionic gripper 33 by a thrust screw. The bionic gripper 33 relies on the gripper moving slide rail 34 to achieve clamping, so that it has high stability when moving. At the same time, a rubber pad is installed on the inner wall of the bionic gripper 33, and an anti-skid groove is opened on the rubber pad to facilitate the anti-skid of the seedlings and ensure the integrity of the seedlings. The gripper moving slide rail 34 is connected to the bionic arm 35 by a thread; the bionic arm 35 is slidably connected to the triangular slide rail 32 through the slide groove, the electric linear guide rail 37 is connected to the end cover 38 by bolts, and the end cover 38 is connected to the triangular slide rail 32 by The driving motor 1 36 is connected to the bionic arm 35 by bolts; the seedling conveying and receiving mechanism includes a driving motor 3 51, a seedling conveyor belt 52, and a seedling receiving box 53; the seedling conveyor belt 52 is installed on the seedling belt transmission and transmission bracket 102 through a rotating shaft, and the driving motor 3 51 is installed on the vehicle body 1 by bolts, and the shaft of the driving motor 3 51 is connected to the rotating shaft of the seedling conveyor belt 52. The driving motor 3 51 can realize the rotation of the seedling conveyor belt 52, which is convenient for realizing the transportation of the seedlings. A large baffle is installed on the seedling conveyor belt 52 to prevent the seedlings from spreading and sliding down, making the seedling transportation more stable. The seedling box 53 is arranged inside the vehicle body 1, and the seedling box 53 is arranged at the rear end of the seedling conveyor belt 52. The seedling box 53 is used for receiving and storing the seedlings; a support plate 54 is installed at the bottom of the seedling box 53, and the upper end of the sliding lifting platform 55 is connected to the bottom of the support plate 54. The sliding lifting platform 55 is used to drive the seedling box 53 to slide and rise and fall, so as to facilitate the adjustment of the position of the seedling box.

[0029] like Figures 1 to 4 As shown, in this specific embodiment, the seedling tray recovery is achieved by a seedling tray recovery mechanism; the front side of the frame is respectively equipped with a seedling tray recovery mechanism, and the seedling tray recovery mechanism is used for recovering the seedling tray belt; Figures 1 to 4 , Figures 8 to 10 As shown, the seedling tray recovery mechanism includes a negative pressure mechanism and a seedling tray belt transmission mechanism, the negative pressure mechanism is connected to the seedling tray belt transmission mechanism, the seedling tray belt transmission mechanism includes a front shovel 41, a seedling tray conveyor belt 42, a slide rail frame 401, a tray platform 402, a seedling tray tray 403, an electric lifter 404, a drive motor 2 405, and a sensor 406; the front shovel 41 and the small pulley shaft of the seedling tray conveyor belt 42 are clearance-matched, the front shovel 41 can realize the scooping of the seedling tray, the seedling tray conveyor belt 42 is installed on the seedling tray belt transmission transmission bracket 103 of the vehicle body 1, and the seedling tray The tray conveyor 42 can realize the transmission of the seedling tray, the slide rail frame 401 is embedded and installed with the vehicle body 1 through the track, the tray platform 402 is fixedly connected to the vehicle body 1 through bolts, the seedling tray tray 403 is connected to the electric lifter 404 through threads, and the tray platform 402 and the seedling tray tray 403 cooperate to realize the recovery and placement of the seedling tray, the electric lifter 404 is fixedly connected to the vehicle body 1 through bolts, the drive motor 405 is fixedly connected to the vehicle body 1 through bolts, the drive motor 405 is connected to the transmission shaft of the seedling tray conveyor 42, and the drive motor 405 is connected to the transmission shaft of the seedling tray conveyor 42. 405 drives the seedling tray conveyor belt 42 to rotate, and the sensor 406 is fixedly connected to the vehicle body 1 by bolts. The sensor 406 is used to identify whether the seedling tray is completely placed on the seedling tray tray 403; the negative pressure mechanism includes a gas bus 43, a solenoid valve assembly 44, a vacuum generator 45, a straight-through regulating valve 46, an air compressor 47, an oil-water separator 48, and a suction cup 49; the gas bus 43, the solenoid valve assembly 44, the vacuum generator 45, the straight-through regulating valve 46, the air compressor 47 and the seedling tray belt transmission transmission bracket 103 are fixed by bolts. The oil-water separator 48 is fixedly connected with the air compressor 47 by bolts, and the front shovel 41, the gas bus 43, the solenoid valve assembly 44, the vacuum generator 45, the straight-through regulating valve 46, the oil-water separator 48, and the suction cup 49 are all connected by a hose; a plurality of mounting holes are provided on the front side of the upper end surface of the front shovel 41, and a suction cup 49 is installed in the mounting hole, and the suction cup 49 can realize the adsorption of the seedling tray, facilitate the stable fixation of the seedling tray, and realize the recovery of the seedling tray and the separation of the seedlings and the seedling tray, and the suction cup 49 is a vacuum suction cup.

[0030] The working principle of this specific embodiment is as follows: when in use, firstly, the remote control power supply and control box 22 are started, the electric linear guide 37 drives the bionic arm 35 to move inward to above the rice seedlings, the front shovel 41 scoops up the seedling tray, and the seedling tray is sucked and fixed by the suction cup 49 under negative pressure, and the bionic clamp 33 is driven to clamp the rice seedlings through the movable slide rail 34, and the driving motor 36 drives the movable slide rail 34 to rotate to roll the seedlings into a cylindrical shape. At this time, one seedling rolling is completed, and the rolled seedlings are transported by belt transmission, and the sliding lifting platform 55 is driven to drive the seedling receiving box 53 to move upward to be flush with the top of the vehicle body 1, and the seedlings transported by the belt transmission fall into the seedling receiving box 53. When the bottom layer of seedlings is full, the sliding lifting platform 55 is driven to drive the seedling receiving box 53 to move downward by a cylindrical body position of the rolled seedlings, and the stepping motor 31 drives the triangular slide rail 32 to rotate for the next seedling rolling movement. When the seedlings are rolled up, the negative pressure mechanism drives the suction cup 49 to release the pressure, and the seedling tray is transported to the seedling tray tray 403 along with the seedling tray belt transmission. After the sensor 406 recognizes that the seedling tray is completely placed on the seedling tray tray 403, it controls the lifter 404 to lift it up to the tray platform 402, completing one lifting. In this specific implementation manner, the control warning mechanism, seedling rolling mechanism, seedling tray recovery mechanism, and seedling conveying and receiving mechanism are all controlled by the PLC integrated system, and the parameters of the mechanism can be adjusted in the terminal controller. The power source of each mechanism is the battery.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rice seedling roll and rice tray recovery machine, characterized in that: It includes a vehicle frame, a control and early warning mechanism, a seedling rolling mechanism, a seedling tray recovery mechanism, and a seedling conveying and receiving mechanism; A control and warning mechanism is installed on the inner lower side of the frame, and the control and warning mechanism is used for control and warning; The front side of the frame is respectively equipped with a seedling rolling mechanism and a seedling tray recovery mechanism, wherein the seedling rolling mechanism is used to roll the seedlings into a cylindrical shape, and the seedling tray recovery mechanism is used to recover the seedling tray belt; A seedling conveying and receiving mechanism is installed inside the frame, and the seedling conveying and receiving mechanism is used for conveying and storing the seedlings.

2. A rice seedling roll and rice tray recovery machine according to claim 1, characterized in that: The vehicle frame comprises a vehicle body (1), wheels (101), a seedling belt transmission and conveying support (102), and a seedling tray belt transmission and conveying support (103); the wheels (101) are mounted on the bottom of the vehicle body (1), the seedling tray belt transmission and conveying support (103) is mounted on the front lower side of the vehicle body (1), and the seedling belt transmission and conveying support (102) is mounted on the front upper side of the vehicle body (1).

3. The rice seedling roll and rice tray recovery machine according to claim 1, characterized in that: The control warning mechanism comprises a warning light (21) and a power supply and control box (22); the warning light (21) and the power supply and control box (22) are connected via bolts, and the power supply and control box (22) and the vehicle body (1) are fixedly connected via bolts.

4. The rice seedling roll and rice tray recovery machine according to claim 1, characterized in that: The seedling rolling mechanism comprises a stepping motor (31), a triangular slide rail (32), a bionic gripper (33), a gripper movable slide rail (34), a bionic arm (35), a driving motor 1 (36), an electric linear guide rail (37), and an end cover (38); the stepping motor (31) is mounted on a seedling belt transmission and conveying bracket (102) of a vehicle frame; the triangular slide rail (32) and the stepping motor (31) are fixedly connected by bolts; the bionic gripper (33) is connected to the gripper movable slide rail (34) by a thrust screw; the gripper movable slide rail (34) and the bionic arm (35) are connected by threads; the bionic arm (35) is slidably connected to the triangular slide rail (32) by a slide groove; the electric linear guide rail (37) and the end cover (38) are connected by bolts; the end cover (38) and the triangular slide rail (32) are connected by bolts; and the driving motor 1 (36) and the bionic arm (35) are connected by bolts.

5. The rice seedling roll and rice tray recovery machine according to claim 1, characterized in that: The seedling tray recovery mechanism comprises a negative pressure mechanism and a seedling tray belt transmission mechanism, the negative pressure mechanism is connected to the seedling tray belt transmission mechanism, the seedling tray belt transmission mechanism comprises a front shovel (41), a seedling tray conveyor belt (42), a slide rail frame (401), a tray table (402), a seedling tray tray (403), an electric lifter (404), a second drive motor (405), and a sensor (406); the front shovel (41) and the seedling tray conveyor belt (42) have clearance fit between the small pulley shafts, and the seedling tray conveyor belt (42) is mounted on a seedling tray belt transmission transmission bracket (406) of the vehicle body (1). 103), the slide rail frame (401) is embedded and installed with the vehicle body (1) through the rail, the tray platform (402) is fixedly connected to the vehicle body (1) through bolts, the seedling tray (403) is connected to the electric lifter (404) through threads, the electric lifter (404) is fixedly connected to the vehicle body (1) through bolts, the second drive motor (405) is fixedly connected to the vehicle body (1) through bolts, the second drive motor (405) is connected to the transmission shaft of the seedling tray conveyor belt (42), and the sensor (406) is fixedly connected to the vehicle body (1) through bolts.

6. The rice seedling roll and rice tray recovery machine according to claim 5, characterized in that: The negative pressure mechanism comprises a gas bus (43), a solenoid valve assembly (44), a vacuum generator (45), a straight-through regulating valve (46), an air compressor (47), an oil-water separator (48), and a suction cup (49); the gas bus (43), the solenoid valve assembly (44), the vacuum generator (45), the straight-through regulating valve (46), the air compressor (47), and the rice seedling tray belt transmission transmission bracket (103) are fixedly connected by bolts, the oil-water separator (48) and the air compressor (47) are fixedly connected by bolts, and the front shovel (41), the gas bus (43), the solenoid valve assembly (44), the vacuum generator (45), the straight-through regulating valve (46), the oil-water separator (48), and the suction cup (49) are all connected by a hose.

7. The rice seedling roll and rice tray recovery machine according to claim 6, characterized in that: A plurality of mounting holes are provided on the front side of the upper end face of the front shovel (41), and a suction cup (49) is installed in the mounting hole. The suction cup (49) is a vacuum suction cup.

8. The rice seedling roll and rice tray recovery machine according to claim 1, characterized in that: The seedling conveying and receiving mechanism comprises a third driving motor (51), a seedling conveyor belt (52), and a seedling receiving box (53); the seedling conveyor belt (52) is mounted on a seedling belt transmission and conveying bracket (102) via a rotating shaft, the third driving motor (51) is mounted on a vehicle body (1) via bolts, the shaft of the third driving motor (51) is connected to the rotating shaft of the seedling conveyor belt (52), the seedling receiving box (53) is arranged inside the vehicle body (1), and the seedling receiving box (53) is arranged at the rear end of the seedling conveyor belt (52).

9. The rice seedling roll and rice tray recovery machine according to claim 8, characterized in that: A support plate (54) is installed at the bottom of the seedling box (53), and the upper end of the sliding lifting platform (55) is connected to the bottom of the support plate (54).

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