A seedling supplying tray device for a pot seedling transplanting machine

Abstract

The application discloses a seedling tray device for a pot seedling transplanting machine, which comprises a seedling taking platform, a tray placing frame, a tray placing frame lifting device and a tray taking device. The tray placing frame lifting device is arranged on at least one side of the seedling taking platform, a plurality of tray placing frames are arranged on a frame of the tray placing frame lifting device in a slidable manner, the tray placing frame lifting device drives the tray placing frames to pass the side of the seedling taking platform in sequence, and the tray taking device is provided with a tray taking driving element for driving the seedling trays on the tray placing frames on the side of the seedling taking platform to enter the seedling taking platform. The tray placing frame lifting device on the side of the seedling taking platform can be provided with a plurality of tray placing frames carrying seedling trays, when the tray placing frames pass the side of the seedling taking platform in sequence, the seedling trays can be automatically pushed into the seedling taking platform through the tray taking driving element, so that the seedling tray loading capacity of the transplanting machine can be increased, the efficiency and quality of manual seedling tray supplement can be improved, and the transplanting efficiency of the pot seedlings is improved.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and more specifically to a seedling tray device for a potted seedling transplanter. Background Technology

[0002] Currently, transplanting seedlings (such as greenhouse vegetable transplanting) typically uses semi-automatic or fully automatic transplanters. Semi-automatic transplanters usually require two or more people: one to drive and one or two to feed the seedlings into the planting device. This reliance on manual labor results in low transplanting efficiency and quality. Therefore, fully automated seedling feeding and transplanting is becoming the current trend.

[0003] Although fully automatic transplanters can operate autonomously, reducing the need for operators, their seedling tray supply system still requires manual intervention after each tray of seedlings has been transplanted. Operators must follow the machine and manually replenish the trays on the seedling-retrieving platform, thus reducing efficiency. Therefore, a seedling tray supply system capable of loading multiple trays and automatically replenishing them on the seedling-retrieving platform is a technical problem that needs to be solved.

[0004] Furthermore, the center of gravity of the seedling trays on the seedling supply device significantly affects the stability of the transplanter, especially for small self-propelled transplanter chassis with narrow wheelbase and track. An excessively high center of gravity and weight can severely impact balance during operation (especially when turning), and in severe cases, may even cause the transplanter to tip over. Therefore, the center of gravity of the automatic seedling supply device used on small transplanters needs to be as low as possible. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a seedling tray device for a potted seedling transplanter.

[0006] To solve the above-mentioned technical problems, the present invention discloses a seedling tray device for a potted seedling transplanter, including a seedling picking platform, a tray rack, a tray rack lifting device, and a tray picking device. The tray rack lifting device is disposed on at least one side of the seedling picking platform. A plurality of tray racks are mounted on the frame of the tray rack lifting device in a way that allows them to slide up and down. The tray rack lifting device drives the tray racks upward sequentially across one side of the seedling picking platform. The tray picking device is provided with a tray picking drive component for driving the seedling trays on the tray racks on one side of the seedling picking platform into the seedling picking platform.

[0007] Furthermore, the tray-retrieving device also includes a first rotary drive component, a rack and a gear mounted above the seedling-retrieving platform. The gear is mounted on the drive shaft of the first rotary drive component, and the rack and gear cooperate with each other. The tray-retrieving drive component is a hook attached to the end of the rack, and the hook is used to pull the seedling trays on the tray rack into the seedling-retrieving platform.

[0008] Furthermore, the seedling platform is equipped with a tray lifting device on both sides, and the rack is equipped with hooks at both ends. The first rotary drive drives the hooks at both ends of the rack to alternately pull the seedling trays on both sides of the seedling platform into the seedling platform.

[0009] Furthermore, the tray rack is a frame structure, and the tray rack is provided with a U-shaped support rod that can cooperate with the groove at the bottom of the seedling tray to suspend and support the seedling tray. A layer height support rod is provided between the upper and lower layers of the tray rack.

[0010] Furthermore, the tray lifting device also includes a second rotary drive component, a lead screw, and a nut installed on the frame. The nuts are installed at both ends of the bottom tray. The lead screw cooperates with the nuts. The upper and lower ends of the lead screw are pivotally connected to the frame. The second rotary drive component drives the lead screws at both ends to rotate synchronously.

[0011] Furthermore, the tray rack is also equipped with a layer height control device. The bottom of the layer height support rod is fixedly connected to the lower tray rack, and the upper tray rack is provided with tray rack holes that slide with the lower layer height support rod. After the seedling tray of the tray rack is pulled into the seedling retrieval platform, the layer height control device controls the upper tray rack to slide down along the layer height support rod to reduce the layer height between the upper and lower tray racks.

[0012] Furthermore, the floor height control device includes a tension spring and a slider. The slider is provided with a slider hole that cooperates with the floor height support rod. The frame is provided with a slider limiting groove on one side of the slider. One end of the tension spring is connected to the plate rack, and the other end is connected to the slider so that the slider abuts against the slider limiting groove. After the plate rack moves upward until the slider disengages from the slider limiting groove, the slider hole moves toward the plate rack hole until they are aligned.

[0013] Furthermore, a roller is installed on one side of the slider, and the roller rolls in cooperation with the slider limiting groove to facilitate entering and exiting the slider limiting groove.

[0014] Furthermore, the plate holder is provided with a U-shaped slide rail, the slider is engaged with the slide groove of the U-shaped slide rail, and both sides of the U-shaped slide rail are provided with U-shaped slide rail hanging shafts for hanging one end of the tension spring, and both sides of the slider are provided with slider hanging shafts for hanging the other end of the tension spring.

[0015] Furthermore, a limiting roller is installed on the U-shaped slide rail mounting shaft, and the bottom of the limiting roller presses the slider into the U-shaped slide rail. A slider limiting block is provided on the slider. When the limiting roller moves to the slider limiting block, the slider hole is aligned with the plate holder hole.

[0016] Compared with the prior art, the advantages of the present invention are as follows:

[0017] The lifting device for the tray-holding frame on one side of the seedling-receiving platform of this invention can be equipped with multiple tray-holding frames carrying seedling trays. The initial position of the tray-holding frames carrying seedling trays is below the seedling-receiving platform, which facilitates lowering the center of gravity. As the tray-holding frames pass upwards sequentially along one side of the seedling-receiving platform, the tray-holding drive component can automatically push the seedling trays into the platform, thereby significantly increasing the seedling tray loading capacity of the transplanter. Furthermore, the automatic pushing of the seedling trays reduces the efficiency and quality issues associated with manually replenishing the seedling trays, improving the transplanting efficiency of potted seedlings and laying the foundation for automated transplanting.

[0018] Furthermore, during the upward movement of the tray rack of the present invention, it slides downward along the layer support rod, thereby reducing the distance between the upper and lower tray racks. That is, after the tray is retrieved, the interval between multiple tray racks can be reduced by folding to reduce the longitudinal space, thereby achieving the effect of lowering the center of gravity and reducing the impact on the driving balance of the transplanter. Attached Figure Description

[0019] The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention. In the drawings:

[0020] Figure 1 This is an isometric schematic diagram of the seedling tray device for a potted seedling transplanter disclosed in an embodiment of the present invention;

[0021] Figure 2 This is a front view schematic diagram of a seedling tray device for a potted seedling transplanter disclosed in an embodiment of the present invention;

[0022] Figure 3 This is a front view schematic diagram of the cooperation between the upper and lower tray racks disclosed in an embodiment of the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of point A;

[0024] Figure 5 This is an isometric schematic diagram of the upper and lower tray racks disclosed in an embodiment of the present invention;

[0025] Figure 6 for Figure 5 Enlarged view of point B;

[0026] Figure 7 This is a schematic diagram of the folding of the plate rack according to an embodiment of the present invention, which is a side plate rack lifting device (hidden layer height control device).

[0027] Legend:

[0028] 1. Seedling collection platform; 11. Inclined sliding bar;

[0029] 2. Plate rack; 21. U-shaped support rod; 22. Height support rod; 23. U-shaped slide rail; 24. Plate rack hole; 25. U-shaped slide rail mounting shaft;

[0030] 3. Plate rack lifting device; 31. Frame; 32. Second rotary drive component; 33. Lead screw; 34. Nut; 35. Slider limiting groove; 36. Sprocket and chain assembly; 37. Plate rack slider; 38. Frame guide rail;

[0031] 4. Disc-retrieving device; 41. First rotary drive component; 42. Rack; 43. Gear; 44. Claw;

[0032] 5. Seedling tray;

[0033] 6. Floor height control device; 61. Tension spring; 62. Slider; 621. Slider hole; 622. Slider mounting shaft; 623. Limiting roller; 624. Slider limiting block; 63. Roller. Detailed Implementation

[0034] To facilitate understanding of the present invention, the present invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of protection of the present invention is not limited to the following specific embodiments.

[0035] like Figure 1-7As shown, this embodiment of the invention discloses a seedling tray device for a potted seedling transplanter, including a seedling retrieval platform 1, a tray rack 2, a tray rack lifting device 3, and a tray retrieval device 4. The seedling retrieval platform 1 is installed in the middle of the transplanter and is used to cooperate with the potted seedling retrieval and transplanting machine on the transplanter. The tray rack lifting device 3 is set on at least one side of the seedling retrieval platform 1. Multiple tray racks 2 are arranged on the frame 31 of the tray rack lifting device 3 in a way that allows them to slide up and down. That is, the tray racks 2 can slide up and down along the frame 31 through a guide component. The guide component includes a tray rack slider 37 installed on one side of the tray rack 2 and a frame guide rail 38 installed on the frame 31. The tray rack slider 37 and the frame guide rail 38 are vertically engaged. The tray rack lifting device 3 drives the tray racks 2 upward and sequentially pass through one side of the seedling retrieval platform 1. The tray retrieval device 4 is provided with a tray retrieval drive component for driving the seedling trays 5 on the tray racks 2 on one side of the seedling retrieval platform 1 into the seedling retrieval platform 1. The tray-lifting device 3 on one side of the seedling-receiving platform 1 of the present invention can be equipped with multiple tray-lifting frames 2 carrying seedling trays 5. The initial position of the tray-lifting frames 2 carrying seedling trays 5 is below the seedling-receiving platform 1, which facilitates lowering the center of gravity. As the tray-lifting frames 2 pass upwards sequentially on one side of the seedling-receiving platform 1, the position of the seedling-receiving platform 1 is lower than the position of the tray-lifting frames 2. An inclined sliding rod 11 is provided at the docking point for guidance, which can automatically push the seedling trays 5 into the seedling-receiving platform 1 through the tray-lifting drive component. This can significantly increase the seedling tray 5 loading capacity of the transplanter. Furthermore, the automatic pushing of the seedling trays 5 reduces the efficiency and quality problems of manually replenishing the seedling trays 5, improves the transplanting efficiency of potted seedlings, and lays the foundation for automated transplanting.

[0036] In this embodiment, in order to realize the automatic pushing of the seedling tray 5, the tray retrieval device 4 also includes a first rotary drive 41, a rack 42 and a gear 43 installed above the seedling retrieval platform 1. The first rotary drive 41 is a motor, the rack 42 is a cylindrical rack, and the gear 43 is installed on the drive shaft of the first rotary drive 41. The rack 42 and the gear 43 cooperate to realize the telescopic reciprocating motion. The tray retrieval drive is a hook 44 installed at the end of the rack 42. When the seedling tray 5 on the tray rack 2 moves upward to below the hook 44, the hook 44 is used to pull the seedling tray 5 on the tray rack 2 laterally into the seedling retrieval platform 1. A conveyor belt can be set on the seedling retrieval platform 1. After the seedlings in the tray 5 are taken out and transplanted, the seedling tray 5 is transported backward by the conveyor belt and transferred to the outside of the seedling retrieval platform 1.

[0037] In this embodiment, in order to increase the loading capacity of the seedling tray 5 of the transplanter and to facilitate the left-right balance of the transplanter, a tray lifting device 3 is provided on both sides of the seedling platform 1, which is symmetrically arranged. Both ends of the rack 42 are provided with hooks 44. The first rotary drive 41 drives the hooks 44 at both ends of the rack 42 to alternately pull the seedling trays 5 on both sides of the seedling platform 1 into the seedling platform 1. That is, the rack 42 moves horizontally back and forth. When the seedling tray 5 on the left side is pulled into the seedling platform 1, the rack 42 moves to the right, thereby pulling the seedling tray 5 on the right side into the seedling platform 1.

[0038] In this embodiment, the tray rack 2 has a U-shaped frame structure to reduce weight. The tray rack 2 is equipped with a U-shaped support rod 21 that can cooperate with the groove at the bottom of the seedling tray 5 to suspend and support the seedling tray 5. The U-shaped support rod 21 is a round rod, which helps to reduce the friction between the seedling tray 5 and the U-shaped support rod 21, thereby protecting the seedling tray 5 and preventing longitudinal displacement during the process of pulling it into the seedling platform 1, thus improving the guiding accuracy. A layer height support rod 22 is provided between the upper and lower tray racks 2. The layer height support rod 22 can limit the height of the upper and lower layers. The height of the layer height support rod 22 is adjustable, so as to adapt to the height of different potted seedlings.

[0039] In this embodiment, the tray lifting device 3 also includes a second rotary drive 32, a lead screw 33, and a nut 34 mounted on the frame 31. The second rotary drive 32 is also a motor. Nuts 34 are installed at both ends of the bottom tray 2. The lead screw 33 cooperates with the nut 34. The upper and lower ends of the lead screw 33 are pivotally connected to the frame 31. The second rotary drive 32 drives the lead screw 33 at both ends to rotate synchronously through the sprocket and chain assembly 36, so that the tray 2 can be driven from both ends, avoiding the problem of uneven force on one side causing the lead screw 33 and nut 34 to jam.

[0040] In this embodiment, see Figure 3-7As shown, when the second rotary drive 32 drives all the tray frames 2 to move upward, the center of gravity of the tray frames 2 will rise higher and higher. In order to lower the center of gravity of the tray frames 2 and reduce the impact on the driving balance of the transplanter, a layer height control device 6 is also installed on the tray frames 2. The bottom of the layer height support rod 22 is fixed to the lower tray frame 2, and the top moves against the bottom of the upper tray frame 2. The upper tray frame 2 is provided with tray frame holes 24 that slide with the lower layer height support rod 22. During the movement, the layer height support rod 22 is misaligned with the tray rack hole 24 to maintain a constant layer height. When the seedling tray 5 of the tray rack 2 is pulled into the seedling retrieval platform 1, the layer height control device 6 controls the tray rack hole 24 of the upper tray rack 2 to align with the layer height support rod 22. This causes the tray rack 2 to slide downwards along the layer height support rod 22, reducing the layer height between the upper and lower tray racks 2, thus lowering the center of gravity. After retrieval, the spacing between multiple tray racks 2 can be reduced by folding to decrease longitudinal space. Therefore, as the tray rack 2 rises, it slides downwards along the layer height support rod 22, reducing the distance between the upper and lower tray racks 2, thereby lowering the center of gravity.

[0041] In this embodiment, the floor height control device 6 includes a tension spring 61 and a slider 62. The slider 62 has a π-shaped structure and a slider hole 621 that mates with the floor height support rod 22. A slider limiting groove 35 is provided on one side of the slider 62 on the frame 31. One end of the tension spring 61 is connected to the plate holder 2, and the other end is connected to the slider 62 so that the slider 62 abuts against the slider limiting groove 35. After the plate holder 2 moves upward until the slider 62 is disengaged from the slider limiting groove 35, the slider 62 will continue to move forward. The slider hole 621 moves towards the plate holder hole 24 until they are aligned. At this time, the top of the floor height support rod 22 that mates with the plate holder hole 24 is released from the restriction, and the plate holder 2 can move downward along the floor height support rod 22 until it is blocked and limited again by the U-shaped support rod 21.

[0042] In this embodiment, a roller 63 is installed on one side of the slider 62. The roller 63 rolls into the slider limiting groove 35 to facilitate entering and exiting the slider limiting groove 35. Specifically, during the upward movement of the tray rack 2, frictional resistance can be reduced. And during the downward insertion of the tray rack 2 into the bottom after the seedling tray 5 has been removed, the roller 63 also facilitates entry into the slider limiting groove 35. See details below. Figure 7The lifting device 3 on the left side of the tray rack operates as follows: When all the seedling trays 5 of the tray racks 2 are removed and stacked, the bottom tray rack 2 is driven downwards by the second rotary drive 32, which drives the lead screw 33 and nut 34. The roller 63 encounters the slider limiting groove 35 and is subjected to pressure, causing the slider 62 to retract synchronously. The roller 63 then re-engages with the slider limiting groove 35, allowing the bottom tray rack 2 to move downwards to the bottom. The remaining tray racks 2 can be manually pressed to re-engage the roller 63 with the slider limiting groove 35, allowing the tray rack 2 to fall back to its original position along the slider limiting groove 35.

[0043] In this embodiment, the plate holder 2 is provided with a U-shaped slide rail 23, and the slider 62 cooperates with the slide groove of the U-shaped slide rail 23 to guide the slider 62. Both sides of the U-shaped slide rail 23 are provided with U-shaped slide rail mounting shafts 25 for attaching one end of the tension spring 61. The U-shaped slide rail mounting shafts 25 can be threaded rod structures or screw structures. Both sides of the slider 62 are provided with slider mounting shafts 622 for attaching the other end of the tension spring 61. The slider mounting shafts 622 can also be threaded rod structures or screw structures.

[0044] In this embodiment, a limiting roller 623 is installed on the U-shaped slide rail connecting shaft 25. The bottom of the limiting roller 623 presses the slider 62 into the U-shaped slide rail 23, thereby preventing the slider 62 from moving up and down. A slider limiting block 624 is provided on the slider 62. When the limiting roller 623 moves to the slider limiting block 624, the slider hole 621 is aligned with the plate holder hole 24, thereby improving the efficiency and accuracy of the alignment between the slider hole 621 and the plate holder hole 24.

[0045] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A seedling tray device for a potted seedling transplanter, characterized in that, The system includes a seedling-taking platform (1), a tray rack (2), a tray rack lifting device (3), and a tray-retrieving device (4). The tray rack lifting device (3) is located on at least one side of the seedling-taking platform (1). Multiple tray racks (2) are mounted on the frame (31) of the tray rack lifting device (3) in a sliding manner. The tray rack lifting device (3) drives the tray racks (2) upwards, sequentially passing one side of the seedling-taking platform (1). The tray-retrieving device (4) is equipped with a mechanism for driving the seedling-taking platform (1)... The seedling tray (5) on one side of the tray rack (2) enters the tray-retrieving drive of the seedling platform (1); the tray rack (2) is a frame structure, and the tray rack (2) is provided with a U-shaped support rod (21) that can cooperate with the groove at the bottom of the seedling tray (5) to suspend and support the seedling tray (5); a layer height support rod (22) is provided between the upper and lower tray racks (2); a layer height control device (6) is also installed on the tray rack (2), and the bottom of the layer height support rod (22) is fixed to the lower tray rack (2). Next, the upper tray rack (2) is provided with tray rack holes (24) that slide with the lower layer height support rod (22). After the seedling tray (5) of the tray rack (2) is pulled into the seedling platform (1), the layer height control device (6) controls the upper tray rack (2) to slide down along the layer height support rod (22) to reduce the layer height of the upper and lower tray racks (2). The layer height control device (6) includes a tension spring (61) and a slider (62). The slider (62) is provided with a mechanism that cooperates with the layer height support rod (22). The slider hole (621) is provided on the frame (31) on one side of the slider (62). One end of the tension spring (61) is connected to the plate holder (2) and the other end is connected to the slider (62) so that the slider (62) abuts against the slider limiting groove (35). After the plate holder (2) moves upward until the slider (62) is disengaged from the slider limiting groove (35), the slider hole (621) moves toward the plate holder hole (24) to be aligned with each other.

2. The seedling tray device for a potted seedling transplanter according to claim 1, characterized in that, The tray-retrieving device (4) further includes a first rotary drive (41), a rack (42) and a gear (43) installed above the seedling platform (1). The gear (43) is installed on the drive shaft of the first rotary drive (41). The rack (42) and the gear (43) cooperate. The tray-retrieving drive is a hook (44) installed at the end of the rack (42). The hook (44) is used to pull the seedling tray (5) on the tray rack (2) into the seedling platform (1).

3. The seedling tray device for a potted seedling transplanter according to claim 2, characterized in that, The seedling platform (1) is provided with the tray lifting device (3) on both sides, and the rack (42) is provided with the hooks (44) at both ends. The first rotary drive (41) drives the hooks (44) at both ends of the rack (42) to alternately pull the seedling trays (5) on both sides of the seedling platform (1) into the seedling platform (1).

4. The seedling tray device for a potted seedling transplanter according to claim 1, characterized in that, The lifting device (3) of the plate rack also includes a second rotary drive (32), a lead screw (33) and a nut (34) installed on the frame (31). The nuts (34) are installed at both ends of the bottom plate rack (2). The lead screw (33) cooperates with the nuts (34). The upper and lower ends of the lead screw (33) are pivotally connected to the frame (31). The second rotary drive (32) drives the lead screws (33) at both ends to rotate synchronously.

5. The seedling tray device for a potted seedling transplanter according to claim 1, characterized in that, A roller (63) is installed on one side of the slider (62), and the roller (63) rolls in cooperation with the slider limiting groove (35) to facilitate entering and leaving the slider limiting groove (35).

6. The seedling tray device for a potted seedling transplanter according to claim 1, characterized in that, The plate rack (2) is provided with a U-shaped slide rail (23), the slider (62) is engaged with the slide groove of the U-shaped slide rail (23), and both sides of the U-shaped slide rail (23) are provided with U-shaped slide rail mounting shafts (25) for attaching one end of the tension spring (61), and both sides of the slider (62) are provided with slider mounting shafts (622) for attaching the other end of the tension spring (61).

7. The seedling tray device for a potted seedling transplanter according to claim 6, characterized in that, A limiting roller (623) is installed on the U-shaped slide rail mounting shaft (25). The bottom of the limiting roller (623) presses the slider (62) into the U-shaped slide rail (23). A slider limiting block (624) is provided on the slider (62). When the limiting roller (623) moves to the slider limiting block (624), the slider hole (621) is aligned with the plate holder hole (24).

Images