Rice seedling tray recycling system and agricultural working machine

Abstract

The application provides a seedling tray recycling system and an agricultural working machine. The seedling tray receiving device comprises a controller, a seedling tray detection mechanism and a seedling tray receiving mechanism electrically connected to the controller. The seedling tray receiving mechanism is used for receiving seedling trays. The seedling tray detection mechanism is used for detecting the seedling trays on the seedling tray receiving mechanism. The controller is configured to control the seedling tray receiving mechanism to release the seedling trays in a release position according to the detection signal of the seedling tray detection mechanism. The seedling tray collecting device is used for receiving the seedling trays falling from the seedling tray receiving mechanism. The restraint mechanism is arranged at the edge of the seedling tray collecting device and is used for limiting the seedling trays falling from the release position. The seedling tray receiving mechanism, the restraint mechanism and the seedling tray collecting device form a collecting space for accommodating the seedling trays. Through the technical scheme of the application, the seedling trays are released in a fixed position, so that each seedling tray falls to the same position of the seedling tray collecting device. In combination with the limitation of the edges of the seedling trays by the seedling tray collecting device and the restraint mechanism, the misalignment between the stacked seedling trays can be prevented.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, and in particular relates to a seedling tray recycling system and agricultural machinery. Background Technology

[0002] In existing orderly rice transplanters, after the seedlings are separated from the seedling trays, the empty seedling trays move to the release end of the seedling tray rotary conveyor component. The empty seedling trays fall on their own due to gravity and inertia. After falling, they are disorderly and not easy to be collected as a whole. Moreover, the seedling trays are prone to falling into the field, causing environmental pollution and seedling tray loss. In addition, special personnel are required to collect the seedling trays in real time. Seedling tray collection is not only labor-intensive, but also requires an additional operator. The increase in operators directly leads to an increase in labor costs for rice planting. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies of the prior art, the present invention provides a seedling tray recycling system and agricultural machinery, which can realize the neat stacking and recycling of seedling trays, reduce the difficulty of seedling tray recycling operations, and thus reduce labor intensity and labor costs.

[0004] To achieve the above objectives, the present invention provides a seedling tray recycling system, wherein the seedling tray recycling system includes: a seedling tray receiving device, including a controller and a seedling tray detection mechanism and a seedling tray receiving mechanism electrically connected to the controller, the seedling tray receiving mechanism being used to receive seedling trays, the seedling tray detection mechanism being used to detect the position of the seedling tray on the seedling tray receiving mechanism, the controller being configured to control the seedling tray receiving mechanism to release the seedling tray at a release position according to the detection signal of the seedling tray detection mechanism; a seedling tray collecting device, for receiving the seedling tray falling from the seedling tray receiving mechanism; and a restraining mechanism, disposed at the edge of the seedling tray collecting device and used to limit the seedling tray falling from the release position, wherein the restraining mechanism, the seedling tray receiving mechanism and the seedling tray collecting device form a collecting space for accommodating the seedling tray.

[0005] In this embodiment of the invention, the seedling tray receiving mechanism includes: a mounting bracket; a sliding rod mounted on the mounting bracket; and two sliding plates connected to the sliding rod and capable of sliding relative to the sliding rod; a driving member, wherein both sliding plates are connected to the driving member, and the controller is configured to activate the driving member according to the seedling tray information detected by the seedling tray detection mechanism, so that the driving member drives the two sliding plates to move towards each other on the sliding rod to form a bearing surface for receiving the seedling tray, or to move away from each other to release the seedling tray.

[0006] In this embodiment of the invention, the seedling tray receiving mechanism further includes a stroke detector electrically connected to the controller. The stroke detector is used to acquire the stroke information of the sliding plate and send the stroke information of the sliding plate to the controller. The controller is configured to shut down the drive unit according to the stroke information of the sliding plate and to make the two sliding plates receive the seedling tray.

[0007] In this embodiment of the invention, the seedling tray receiving mechanism further includes two first rod end joint bearings respectively connected to the two slide plates. The driving member is used to synchronously drive the two first rod end joint bearings. One of the first rod end joint bearings is connected to the driving member, and the other first rod end joint bearing is connected to the driving member through a first rocker arm. The stroke detector is installed on the first rocker arm and is used to obtain the stroke information of the slide plate by detecting the rotation stroke of the first rocker arm.

[0008] In this embodiment of the invention, the seedling tray receiving mechanism further includes a transmission assembly, which includes a driving wheel and a driven wheel meshing with the driving wheel. The driving wheel is connected to the output shaft of the driving member, and the driven wheel can drive the first rod end joint bearing and the first rocker arm to rotate.

[0009] In this embodiment of the invention, the seedling tray receiving mechanism includes: a second rod end joint bearing, one end of which is connected to the output end of the drive member via a second rocker arm; two connecting rods, one end of which is connected to the other end of the second rod end joint bearing, and the other end of which is connected to a sliding plate; the drive member is used to drive the sliding plate via the second rod end joint bearing and the connecting rods; and the stroke detector is used to obtain the stroke information of the sliding plate by detecting the sliding stroke of the connecting rods.

[0010] In an embodiment of the invention, the seedling tray collecting device includes a support and a torsion spring frame installed on the support. The torsion spring frame includes a support bracket and a limiting bracket connected to the support bracket. The support bracket is used to receive the seedling tray falling from the release position, and the limiting bracket is used to abut against the edge of the seedling tray.

[0011] In this embodiment of the invention, the constraint mechanism includes a plurality of flexible constraint bands, the two ends of which are respectively connected to the seedling tray receiving device and the seedling tray collecting device.

[0012] In this embodiment of the invention, the seedling tray collecting device further includes two torsion spring rods, the torsion spring rods are installed on the support and the torsion spring frame is located between the two torsion spring rods, one end of the flexible constraint band is connected to the torsion spring rod, and the other end of the flexible constraint band is hung on the seedling tray receiving device.

[0013] In this embodiment of the invention, the seedling tray detection mechanism includes a projector and a receiver, both electrically connected to the controller. The projector continuously sends through-beams to the receiver, and the seedling tray can cut off the through-beams, causing the seedling tray detection mechanism to send seedling tray information to the controller. Alternatively, the seedling tray detection mechanism includes a proximity switch and a trigger plate installed on the seedling tray receiving mechanism. The trigger plate is set corresponding to the release position and can trigger the proximity switch under the action of the seedling tray. The proximity switch is electrically connected to the controller.

[0014] In this embodiment of the invention, the seedling tray recycling system further includes a protective device, which includes an upper protective cover and a lower protective cover, forming a protective space between the upper protective cover and the lower protective cover, and the controller is housed within the protective space.

[0015] The present invention also proposes an agricultural operation machine, wherein the agricultural operation machine includes a seedling tray rotary conveyor and a seedling tray recycling system as described above.

[0016] In this embodiment of the invention, the agricultural machinery further includes a main frame, which has an adjustment hole. The seedling tray receiving mechanism is installed on the main frame through the adjustment hole, and the seedling tray receiving mechanism can be adjusted left and right along the adjustment hole.

[0017] In this embodiment of the invention, the agricultural machinery further includes a liftable working device, the main frame is mounted on the working device, and the working device is used to drive the seedling tray receiving device to rise and fall relative to the seedling tray collecting device.

[0018] Through the above technical solution, the seedling tray recycling system provided by the embodiments of the present invention has the following beneficial effects:

[0019] When the seedling tray recycling system recycles the seedling trays, the seedling tray receiving mechanism of the seedling tray receiving device first receives the seedling trays. The seedling tray detection mechanism detects the position information of the seedling trays in real time. When the seedling tray detection mechanism detects the seedling tray information, it sends a detection signal to the controller. The controller controls the seedling tray receiving mechanism to release the seedling trays at the release position. The seedling tray collecting device can receive the seedling trays released from the release position of the seedling tray receiving mechanism. At the same time, the constraint mechanism surrounding the edge of the seedling tray collecting device and the seedling tray collecting device work together to limit the edge of the seedling trays, so that the seedling trays released from the release position can be neatly stacked in the collection space under the joint limitation of the constraint mechanism and the seedling tray collecting device. The seedling tray receiving device of the present invention not only realizes the fixed-point positioning and release of the seedling trays, ensuring that each seedling tray falls to the same position on the seedling tray collecting device, replacing the existing collection method in which the seedling trays rely entirely on gravity to fall, but also, by combining the seedling tray collecting device and the constraint mechanism to limit the edge of the seedling trays, it can prevent misalignment between stacked seedling trays, achieving neat stacking of seedling trays, which facilitates subsequent seedling tray recycling, eliminates the need for dedicated seedling tray recycling personnel, reduces the labor intensity and labor cost of seedling tray recycling, and also avoids seedling tray damage and environmental pollution caused by seedling trays scattering.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the assembly structure of agricultural machinery according to an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of the seedling tray recycling system according to an embodiment of the present invention;

[0024] Figure 3 This is an exploded structural diagram of a seedling tray receiving device according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the assembly structure of the seedling tray receiving device according to an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 Enlarged view of region A in the middle;

[0027] Figure 6 This is a partial structural schematic diagram of agricultural machinery according to an embodiment of the present invention;

[0028] Figure 7This is a partial structural schematic diagram of the seedling tray receiving device according to another embodiment of the present invention from one perspective;

[0029] Figure 8 This is a partial structural schematic diagram of the seedling tray receiving device from another perspective according to another embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures

[0031] Detailed Implementation

[0032] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] The seedling tray recycling system according to the present invention is described below with reference to the accompanying drawings.

[0034] like Figures 1 to 3 As shown, in an embodiment of the present invention, a seedling tray recycling system is provided, wherein the seedling tray recycling system 100 includes a seedling tray receiving device 1, a seedling tray collecting device 2, and a restraining mechanism 3; the seedling tray receiving device 1 includes a controller and a seedling tray detection mechanism 11 and a seedling tray receiving mechanism 12 electrically connected to the controller. The seedling tray receiving mechanism 12 is used to receive seedling trays, the seedling tray detection mechanism 11 is used to detect the position of the seedling trays on the seedling tray receiving mechanism 12, and the controller is configured to control the seedling tray receiving mechanism 12 to release the seedling trays at the release position according to the detection signal of the seedling tray detection mechanism 11; the seedling tray collecting device 2 is used to receive the seedling trays falling from the seedling tray receiving mechanism 12; the restraining mechanism 3 is disposed at the edge of the seedling tray collecting device 2 and is used to limit the seedling trays falling from the release position, and the restraining mechanism 3, the seedling tray receiving mechanism 12, and the seedling tray collecting device 2 form a collection space 4 for accommodating the seedling trays. The seedling tray receiving device 1 and the seedling tray collecting device 2 are arranged sequentially in the vertical direction, and the restraining mechanism 3 is connected between the seedling tray receiving device 1 and the seedling tray collecting device 2.

[0035] When the seedling tray recycling system 100 recycles the seedling trays, the seedling tray receiving mechanism 12 of the seedling tray receiving device 1 first receives the seedling trays. The seedling tray detection mechanism 11 detects the seedling trays in real time. When the seedling tray detection mechanism 11 detects the seedling tray information, it sends a detection signal to the controller. The controller controls the seedling tray receiving mechanism 12 to release the seedling trays at the release position. The seedling tray collecting device 2 can receive the seedling trays released from the release position of the seedling tray receiving mechanism 12. At the same time, the constraint mechanism 3 surrounding the edge of the seedling tray collecting device 2 and the seedling tray collecting device 2 work together to limit the edge of the seedling trays, so that the seedling trays released from the release position can be neatly stacked in the collection space 4 under the joint limitation of the constraint mechanism 3 and the seedling tray collecting device 2. The seedling tray receiving device 1 in this embodiment not only realizes the fixed-point positioning and release of the seedling trays, ensuring that each seedling tray falls to the same position on the seedling tray collecting device 2, replacing the existing collection method where the seedling trays rely entirely on gravity to fall, but also, combined with the seedling tray collecting device 2 and the constraint mechanism 3 to limit the edge of the seedling trays, prevents misalignment between stacked seedling trays, achieving neat stacking of seedling trays, facilitating subsequent seedling tray recycling, avoiding secondary sorting of seedling trays, greatly saving seedling tray recycling time, and eliminating the need for dedicated seedling tray recycling personnel, reducing the labor intensity and labor cost of seedling tray recycling, and also avoiding seedling tray damage and environmental pollution caused by seedling trays scattering.

[0036] In one embodiment, the controller specifically controls the seedling tray receiving mechanism 12 to release the seedling tray at the release position through the following mechanical structure, such as... Figure 3As shown, the seedling tray receiving mechanism 12 includes a mounting bracket 121, a sliding rod 122, a driving component 1251, and two sliding plates 123. The sliding rod 122 is mounted on the mounting bracket 121. The two sliding plates 123 are connected to the sliding rod 122 and can slide relative to the sliding rod 122. Both sliding plates 123 are connected to the driving component 1251. The controller is configured to activate the driving component 1251 according to the seedling tray information detected by the seedling tray detection mechanism 11, so that the driving component 1251 drives the two sliding plates 123 to move towards each other on the sliding rod 122 to form a bearing surface 124 for receiving the seedling tray, or to drive the driving component 1251 to drive the two sliding plates 123 to move away from each other on the sliding rod 122 to release the seedling tray. When the seedling tray detection mechanism 11 detects a seedling tray, the controller can control the drive component 1251 to drive the two sliding plates 123 to slide back-to-back on the slide rod 122, so that the gap between the two sliding plates 123 gradually increases, allowing the seedling tray to be released through the gap between the two sliding plates 123. This completes the fixed-point release of the seedling tray, ensuring that each seedling tray falls to the same position in the seedling tray collecting device 2. When the two sliding plates 123 are in the closed position, the stroke detector 126 is triggered to send a stop signal to the drive component 1251. The sliding plates 123 remain in the closed position, receiving the seedling tray until the seedling tray moves to the fixed position, at which point the drive component 1251 is triggered again to perform the next cycle of opening and closing action. In this embodiment, the fixed-point release of the seedling tray can be completed through the sliding cooperation between the slide rod 122 and the two sliding plates 123, which is simple in structure and easy to control. In one embodiment, a slider is provided on the sliding plate 123, and the slider is sleeved on the slide rod 122. The sliding plate 123 can be slidably installed on the slide rod 122 through the slider.

[0037] In one embodiment, when the two sliding plates 123 move towards each other to a designated position, they cooperate to form a bearing surface 124, which can jointly support the seedling tray. In another embodiment, the two sliding plates 123 move towards each other until they are completely closed to form the bearing surface 124. Whether there is a gap between the two sliding plates 123 when they support the seedling tray is not limited in this invention. After the driving member 1251 drives the two sliding plates 123 to open and release the seedling tray, it can immediately drive the two sliding plates 123 to move towards each other and stop at a position that can support the seedling tray. As a working cycle, this can avoid the situation where the next seedling tray cannot be supported and gets stuck after the previous seedling tray is released.

[0038] like Figure 3 and Figure 7 As shown, in this embodiment of the invention, the seedling tray receiving mechanism 12 further includes a travel detector 126 electrically connected to the controller. When the seedling tray reaches a fixed position and a start signal is triggered, the travel detector 126 acquires the travel information of the sliding plate 123 and sends the travel information of the sliding plate 123 to the controller. The controller is configured to shut down the drive unit 1251 according to the travel information of the sliding plate 123, and to allow the two sliding plates 123 to receive the seedling tray. In this embodiment, the drive unit 1251 can be a motor.

[0039] When the seedling tray detection mechanism 11 detects a seedling tray at a fixed position, the controller activates the drive unit 1251, causing the drive unit 1251 to drive two sliding plates 123 to slide back-to-back on the slide bar 122 from their initial positions. After the two sliding plates 123 move back-to-back to the position with the maximum gap and release the seedling tray, the drive unit 1251 drives the two sliding plates 123 to move towards each other and return to their initial positions, completing one stroke cycle. After the stroke detector 126 detects that the sliding plate 123 has completed one stroke cycle, it sends a shutdown signal to the controller. The controller shuts down the drive unit 1251, causing the sliding plate 123 to reset and come to a stop. Then, the sliding plate 123 receives the next seedling tray. In this embodiment, through the cooperation between the seedling tray detection mechanism 11 and the stroke detector 126, the receiving and releasing of the seedling tray by the sliding plate 123 can be controlled, fully realizing the automation and mechanization of seedling tray recycling. Furthermore, by detecting the movement stroke of the sliding plate 123 and controlling its reset, the accuracy of the motion control of the seedling tray recycling system 100 can be improved.

[0040] In this embodiment of the invention, the seedling tray receiving mechanism 12 further includes two first rod end joint bearings 1252 respectively connected to the two sliding plates 123; one of the first rod end joint bearings 1252 is connected to the driving member 1251, and the other first rod end joint bearing 1252 is connected to the driving member 1251 through the first rocker arm 1253. A stroke detector 126 is installed on the first rocker arm 1253 and is used to obtain the stroke information of the sliding plate 123 by detecting the rotation stroke of the first rocker arm 1253. In this embodiment, the stroke detector 126 can be a limit switch or a proximity switch. The first rod end joint bearing 1252 on the left is located at the lower end and is connected to the driving member 1251, and the first rod end joint bearing 1252 on the right is located at the upper end and is connected to the driving member 1251 through the first rocker arm 1253.

[0041] In this embodiment, the driving component 1251 can be a motor. The driving component 1251 drives the first rocker arm 1253 on the right to rotate. The first rocker arm 1253 drives the first rod end joint bearing 1252 on the right to rotate. The first rod end joint bearing 1252 on the right drives the right slide plate 123 to move linearly outward along the slide rod 122, thereby driving the right slide plate 123 to open outward. The stroke detector 126 is installed at the end of the first rocker arm 1253. The stroke detector 126 obtains the stroke of the slide plate 123 by detecting the position of the first rocker arm 1253. When the first rocker arm 1253 rotates to face the stroke detector 126, the slide plate 123 is at the innermost side. The controller shuts off the driving component 1251, so that the two slide plates 123 are kept in the initial position and form the bearing surface 124, so that the slide plate 123 is reset and stationary. In this embodiment, the first rocker arm 1253 and the two first rod end joint bearings 1252 cooperate with each other, which can easily adjust the stroke of the two slide plates 123, so that the two slide plates 123 can open or close synchronously, and prevent the seedling tray from tipping over when the two slide plates 123 are not synchronized.

[0042] In embodiments of the present invention, such as Figures 3 to 5 As shown, the seedling tray receiving mechanism 12 also includes a transmission assembly 127. The transmission assembly 127 includes a drive wheel 1271 and a driven wheel 1272 meshing with the drive wheel 1271. The drive wheel 1271 is connected to the output shaft of the drive member 1251. The driven wheel 1272 can drive the first rod end spherical bearing 1252 and the first rocker arm 1253 to rotate. The output shaft of the drive component 1251 is connected to the drive wheel 1271 via a reducer. The output shaft of the reducer drives the drive wheel 1271 to rotate, which in turn drives the driven wheel 1272 to move. The driven wheel 1272 drives the first rod end joint bearing 1252 on the left side to rotate, thereby causing the left slider to open the left slide plate 123 outward. At the same time, the driven wheel 1272 drives the first rocker arm 1253 on the right side to rotate, which in turn drives the first rod end joint bearing 1252 on the right side to rotate. The first rod end joint bearing 1252 on the right side drives the right slide plate 123 to move linearly outward along the slide bar 122, thereby opening the right slide plate 123 outward. This achieves synchronous opening of both slide plates 123 outward. When the first rocker arm 1253 rotates one revolution, the slider completes one linear back-and-forth motion from the innermost side to the outermost side and back to the innermost side. When the slider moves to the outermost position, the two sliding plates 123 open completely to the outside; when the slider moves to the innermost position, the two sliding plates 123 close completely, realizing a complete receiving and releasing motion of the seedling tray.

[0043] In another embodiment, such as Figure 7 and Figure 8As shown, the seedling tray receiving mechanism 12 also includes a second rod end joint bearing 1254 and two connecting rods 1256; one end of the connecting rod 1256 is connected to the other end of the second rod end joint bearing 1254, and the other end of the connecting rod 1256 is connected to a sliding plate 123. The driving member 1251 is used to drive the sliding plate 123 through the second rod end joint bearing 1254 and the connecting rod 1256. The stroke detector 126 is used to detect the sliding stroke of the connecting rod 1256. In this embodiment, the travel detector 126 can be a proximity switch, and the sliding plate 123 can be opened by a linkage. When the seedling tray triggers the seedling tray detection mechanism 11, the seedling tray detection mechanism 11 transmits a signal to the controller. The controller controls the drive component 1251 to drive the second rocker arm 1255 to rotate. The second rocker arm 1255 drives the second rod end joint bearing 1254 to move linearly. The second rod end joint bearing 1254 drives the two connecting rods 1256 to move. The two connecting rods 1256 drive the slider to move linearly. The slider drives the sliding plate 123 to open and close. In this embodiment, the transmission component 127 can be omitted, the structure is simple and easy to assemble, and the number of components in the seedling tray recycling system 100 is reduced.

[0044] Specifically, the seedling tray collecting device 2 includes a support 21 and a torsion spring frame 22 mounted on the support 21. The torsion spring frame 22 includes a support bracket 221 and a limiting bracket 222 connected to the support bracket 221. The support bracket 221 is used to receive the seedling tray falling from the release position, and the limiting bracket 222 is used to abut against the edge of the seedling tray. In this embodiment, the seedling tray collecting device 2 is L-shaped. When the seedling tray collecting device 2 collects the seedling tray, the limiting bracket 222 can also cooperate with the constraint mechanism 3 to limit the seedling tray, which can further prevent the seedling tray from falling. Moreover, the use of a torsion spring component can ensure the buffering effect of the seedling tray collecting device 2 on the seedling tray, avoiding the situation where the seedling tray slips due to excessive rigidity.

[0045] In embodiments of the present invention, such as Figure 2 and Figure 6 As shown, the constraint mechanism 3 includes multiple flexible constraint straps 31, with each end of the flexible constraint strap 31 connected to the seedling tray receiving device 1 and the seedling tray collecting device 2, respectively. In one embodiment, the flexible constraint straps 31 can be springs. Multiple flexible constraint straps 31 surround the edge of the torsion spring frame 22, jointly limiting the seedling tray to prevent it from falling or shifting. Furthermore, the upper end of the flexible constraint strap 31 is hooked to the seedling tray receiving mechanism 12. When packing neatly stacked seedling trays, the flexible constraint straps 31 hooked to the seedling tray receiving mechanism 12 can be removed to facilitate the recycling of the seedling trays.

[0046] To further facilitate the recycling of seedling trays, such as Figure 2As shown, the seedling tray collecting device 2 also includes two torsion spring rods 23. The torsion spring rods 23 are installed on the support 21 and the torsion spring frame 22 is located between the two torsion spring rods 23. One end of the flexible restraint band 31 is connected to the torsion spring rod 23, and the other end of the flexible restraint band 31 is hung on the seedling tray receiving device 1. The two torsion spring rods 23 are located on the left and right sides of the torsion spring frame 22, respectively. The deformation of the torsion spring rods 23 can easily remove the flexible restraint band 31 hanging on the seedling tray receiving mechanism 12, improving the ease of use of the seedling tray recycling system 100.

[0047] In one embodiment, such as Figure 3 As shown, the seedling tray detection mechanism 11 includes a projector 111a and a receiver 111b, both electrically connected to the controller. The projector 111a continuously sends a beam of light to the receiver 111b. After the seedling tray cuts off the beam of light, the seedling tray detection mechanism 11 sends the seedling tray information to the controller. To prevent mud and water from affecting the detection and causing detection failure, a protective cover can be installed on the outside of the projector 111a and the receiver 111b. During the process of the seedling tray moving to the release position, the light between the projector 111a and the receiver 111b is cut off. In one embodiment, the seedling tray detection mechanism 11 transmits a signal to the controller through a time relay. The controller controls the seedling tray receiving mechanism 12 to release the seedling tray at the release position. The time relay can filter the signal and delay, thereby ensuring the accuracy of signal detection.

[0048] In another embodiment, the seedling tray detection mechanism 11 includes a proximity switch 112 and a trigger plate 113 mounted on the seedling tray receiving mechanism 12. The trigger plate 113 can trigger the proximity switch 112 under the action of the seedling tray. The proximity switch 112 is electrically connected to the controller. When the seedling tray moves to the release position, the seedling tray drives the lower end of the trigger plate 113 to move backward, and the upper end of the trigger plate 113 moves forward accordingly to trigger the proximity switch 112. The proximity switch 112 transmits a signal to the controller, and the controller starts the drive component 1251, which drives the two slide plates 123 to move back to back and then to opposite directions to complete one working cycle.

[0049] In this embodiment of the invention, the seedling tray recycling system 100 further includes a protective device 5, which includes an upper protective cover 51 and a lower protective cover 52, forming a protective space 53 between the upper protective cover 51 and the lower protective cover 52. The controller is housed within the protective space 53. The upper protective cover 51 and the lower protective cover 52 are connected by bolts to form the protective space 53. The protective space 53 is mainly used to prevent mud and water on the seedling tray from entering the moving parts during operation, which could cause the moving parts to jam, malfunction, or fail, thus ensuring the stability of the seedling tray recycling system 100. In one embodiment, the seedling tray receiving mechanism 12 is partially housed within the protective space 53.

[0050] This invention also proposes an agricultural machinery 200, which includes a seedling tray rotary conveyor 210 and a seedling tray recycling system 100 as described above. The seedling tray recycling system 100 is located at the seedling tray release end of the seedling tray rotary conveyor 210, and the seedling tray receiving mechanism 12 can receive the seedling trays released from the seedling tray release end. The specific structure of the seedling tray recycling system 100 is as described in the above embodiments. Since the agricultural machinery 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] In this embodiment of the invention, the agricultural machinery 200 also includes a main frame 220, which has an adjustment hole. The seedling tray receiving mechanism 12 is installed on the main frame 220 through the adjustment hole, and the seedling tray receiving mechanism 12 can be slightly adjusted left and right along the adjustment hole. The adjustment hole is an oblong hole, which allows for slight left and right adjustments of the seedling tray receiving mechanism 12 to ensure that the seedling tray is located in the middle of the support of the two sliding plates 123, ensuring smooth receiving and releasing of the seedling tray. In this embodiment of the invention, the agricultural machinery 200 also includes a liftable working device. The main frame 220 is installed on the working device, which is used to drive the seedling tray receiving device 1 to rise and fall relative to the seedling tray collecting device 2. The working device can be raised, and the flexible restraint belt 31 will extend accordingly. The flexible restraint belt 31 hanging on the seedling tray receiving mechanism 12 can be removed, which facilitates the overall packaging and removal of the seedling tray. After hanging the flexible material, a new round of automatic seedling tray collection can begin, avoiding interference from other components during the packaging and removal of the seedling tray.

[0052] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A seedling tray recycling system, characterized by, The seedling tray recycling system (100) includes: The seedling tray receiving device (1) includes a controller and a seedling tray detection mechanism (11) and a seedling tray receiving mechanism (12) electrically connected to the controller. The seedling tray receiving mechanism (12) is used to receive seedling trays, and the seedling tray detection mechanism (11) is used to detect seedling tray information on the seedling tray receiving mechanism (12). The controller is configured to control the seedling tray receiving mechanism (12) to release the seedling tray in a release position according to the detection signal of the seedling tray detection mechanism (11). The seedling tray receiving mechanism (12) includes a mounting bracket (121) and a sliding mechanism mounted on the mounting bracket (121). The controller is configured to activate the driver (1251) based on the seedling tray information detected by the seedling tray detection mechanism (11), so that the driver (1251) drives the two slide plates (123) to move towards each other on the slide rod (122) to form a bearing surface (124) for receiving the seedling tray, or to move away from each other to release the seedling tray; A seedling tray collecting device (2) is used to receive the seedling tray falling from the seedling tray receiving mechanism (12). The seedling tray collecting device (2) includes a support (21), a torsion spring frame (22) installed on the support (21), and two torsion spring rods (23). The torsion spring frame (22) includes a support bracket (221) and a limiting bracket (222) connected to the support bracket (221). The support bracket (221) is used to receive the seedling tray falling from the release position, and the limiting bracket (222) is used to abut against the edge of the seedling tray. The torsion spring rods (23) are installed on the support (21), and the torsion spring frame (22) is located between the two torsion spring rods (23). A constraint mechanism (3) is provided at the edge of the seedling tray collecting device (2) to limit the seedling tray falling from the release position. The constraint mechanism (3), the seedling tray receiving mechanism (12), and the seedling tray collecting device (2) form a collection space (4) for accommodating the seedling tray. The constraint mechanism (3) includes multiple flexible constraint bands (31). The two ends of the flexible constraint bands (31) are respectively connected to the seedling tray receiving device (1) and the seedling tray collecting device (2). One end of the flexible constraint bands (31) is connected to the torsion spring rod (23), and the other end of the flexible constraint bands (31) is hung on the seedling tray receiving device (1). The seedling tray detection mechanism (11) includes a projector (111a) and a receiver (111b) both electrically connected to the controller. The projector (111a) continuously sends a beam of light to the receiver (111b). The seedling tray can cut off the beam of light, so that the seedling tray detection mechanism (11) sends the seedling tray information to the controller. or, The seedling tray detection mechanism (11) includes a proximity switch (112) and a trigger plate (113) installed on the seedling tray receiving mechanism (12). The trigger plate (113) is set corresponding to the release position and can trigger the proximity switch (112) under the drive of the seedling tray. The proximity switch (112) is electrically connected to the controller.

2. The seedling tray recycling system according to claim 1, characterized in that, The seedling tray receiving mechanism (12) further includes a stroke detector (126) electrically connected to the controller. The stroke detector (126) is used to obtain the stroke information of the slide plate (123) and send the stroke information of the slide plate (123) to the controller. The controller is configured to shut down the drive unit (1251) according to the stroke information of the slide plate (123) and make the two slide plates (123) receive the seedling tray.

3. The seedling tray recycling system according to claim 2, characterized in that, The seedling tray receiving mechanism (12) further includes two first rod end joint bearings (1252) respectively connected to the two slide plates (123). The driving member (1251) is used to synchronously drive the two first rod end joint bearings (1252). One of the first rod end joint bearings (1252) is connected to the driving member (1251), and the other first rod end joint bearing (1252) is connected to the driving member (1251) through the first rocker arm (1253). The stroke detector (126) is installed on the first rocker arm (1253) and is used to obtain the stroke information of the slide plate (123) by detecting the rotation stroke of the first rocker arm (1253).

4. The seedling tray recycling system according to claim 3, characterized in that, The seedling tray receiving mechanism (12) further includes a transmission assembly (127), which includes a drive wheel (1271) and a driven wheel (1272) meshing with the drive wheel (1271). The drive wheel (1271) is connected to the output shaft of the drive member (1251), and the driven wheel (1272) can drive the first rod end joint bearing (1252) and the first rocker arm (1253) to rotate.

5. The seedling tray recycling system according to claim 2, characterized in that, The seedling tray receiving mechanism (12) includes: The second rod end joint bearing (1254) has one end connected to the output end of the drive unit (1251) via the second rocker arm (1255). Two connecting rods (1256) are provided. One end of the connecting rod (1256) is connected to the other end of the second rod end joint bearing (1254). The other end of the connecting rod (1256) is connected to a sliding plate (123). The driving member (1251) is used to drive the sliding plate (123) through the second rod end joint bearing (1254) and the connecting rod (1256). The stroke detector (126) is used to obtain the stroke information of the sliding plate (123) by detecting the sliding stroke of the connecting rod (1256).

6. The seedling tray recycling system according to any one of claims 1 to 5, characterized in that, The seedling tray recycling system (100) also includes a protective device (5), which includes an upper protective cover (51) and a lower protective cover (52), forming a protective space (53) between the upper protective cover (51) and the lower protective cover (52), and the controller is housed in the protective space (53).

7. An agricultural operating machine, characterized in that, The agricultural machinery (200) includes a seedling tray rotary conveyor (210) and a seedling tray recycling system (100) according to any one of claims 1 to 6.

8. The agricultural machinery according to claim 7, characterized in that, The agricultural machinery (200) also includes a main frame (220), which has an adjustment hole. The seedling tray receiving mechanism (12) is installed on the main frame (220) through the adjustment hole, and the seedling tray receiving mechanism (12) can be adjusted left and right along the adjustment hole.

9. The agricultural machinery according to claim 8, characterized in that, The agricultural machinery (200) also includes a lifting working device, the main frame (220) is installed on the working device, and the working device is used to drive the seedling tray receiving device (1) to lift relative to the seedling tray collecting device (2).

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