Automatic seedling tray unloading device

Abstract

The utility model discloses a seedling tray automatic unloading device belongs to seedling equipment technical field, the utility model discloses a roller conveying line and turnover unloading mechanism, turnover unloading mechanism include frame and set on the jacking assembly and the clamping turnover subassembly of frame, wherein, jacking assembly be located below roller conveying line, for the jacking of multiple seedling trays from roller conveying line, the clamping turnover subassembly includes the clamping unit of rotation setting on the frame and the drive unit of clamping unit rotation, the clamping unit includes the frame and sets up on the frame opposite side on several telescopic parts, on the same side wall on the frame on several telescopic parts common connection one clamping strip, the upper and lower both ends of clamping strip all are equipped with stop block. The utility model discloses the clamping mode of surrounding type, can effectively ensure the stability of seedling tray clamping. Meanwhile, utilize clamping strip can complete multiple seedling tray clamping operation simultaneously, can improve clamping efficiency greatly.

Description

Technical Field

[0001] This utility model belongs to the technical field of seedling equipment, and more specifically, relates to an automatic seedling tray feeding device. Background Technology

[0002] Seedling cultivation is a method of raising seedlings in specially designed seedbeds for transplanting into production fields. It is a method capable of large-scale seedling cultivation, applicable to crops such as rice, sweet potatoes, vegetables, fruit trees, and flowers. Compared to direct seeding, its advantages lie in creating the necessary environmental conditions based on the characteristics of crop seedling growth and development, employing advanced seedling techniques, and implementing centralized management to cultivate high-quality and abundant seedlings. Seedling cultivation allows for earlier sowing in unsuitable growing seasons, extending the crop's growing period and promoting earlier maturity. Furthermore, this method facilitates meticulous management, promoting robust seedling growth and strong vitality, laying a solid foundation for high-yield and high-quality production.

[0003] Seedling trays, a common tool in seedling cultivation, serve the core function of providing a suitable environment for seed germination and seedling growth, while also facilitating large-scale management and transplanting. Traditionally, after the seeds have matured in the seedling trays, the crops are harvested manually, which clearly cannot meet the demands of automated production lines.

[0004] To address this, the applicant disclosed a 180-degree rotating machine for forage planting trays in patent CN115176692A. This application includes a frame, a conveying mechanism, a rotating mechanism, and a detection mechanism. The rotating mechanism includes a base, a first reduction motor mounted on the base, a rotating shaft, and a turntable frame. This overall structure spans above the conveying mechanism and is connected to the frame. The turntable frame has multiple rods spaced apart on the outer edge of the rotating shaft. The first reduction drive motor is connected to the rotating shaft. Each rod has a free end and a fixed rotating end, with a buffer component located on the rotating path of the forage planting tray at the free end. The detection mechanism, located on the side of the conveying mechanism near the rotating shaft, is used to detect the feeding signal of the planting tray. This application achieves automatic forage feeding by rotating the planting tray using the turntable frame. However, after a period of actual use, it was found that during the rotating feeding process, some forage would hang on the turntable frame, resulting in incomplete feeding.

[0005] Based on the aforementioned shortcomings, the applicant continued to optimize the design, disclosing a turning machine for a forage planting tray in patent CN222757514U. This application utilizes a clamping mechanism to clamp the planting tray from the side, thus not affecting the normal feeding of forage and facilitating the complete emptying of forage from the planting tray. However, this application still has room for improvement in terms of clamping stability and feeding efficiency. Utility Model Content

[0006] The problem to be solved In view of at least some of the problems existing in the prior art, this utility model proposes an automatic seedling tray feeding device, which can effectively improve the stability of the seedling tray clamping and also greatly improve the feeding efficiency.

[0007] Technical solution To solve the above problems, the technical solution adopted by this utility model is as follows: This utility model discloses an automatic seedling tray feeding device, comprising a roller conveyor line and a tilting feeding mechanism; wherein... The roller conveyor line is used to transport seedling trays, and the flipping and unloading mechanism is used to clamp and flip the seedling trays on the roller conveyor line to complete the unloading operation of the crops in the seedling trays. The aforementioned flipping and unloading mechanism includes a frame and a lifting assembly and a clamping and flipping assembly mounted on the frame; wherein, The lifting assembly is located below the roller conveyor line and is used to lift multiple seedling trays off the roller conveyor line; The clamping and flipping assembly includes a clamping unit rotatably mounted on the frame and a driving unit for driving the clamping unit to rotate. The clamping unit includes a frame and several telescopic components disposed on opposite sides of the frame. Several telescopic components located on the same side wall of the frame are connected together to a clamping strip. Both ends of the clamping bar are provided with stop blocks, and a clamping space is formed between the two stop blocks; A set of clamping bars arranged opposite each other is used to simultaneously clamp multiple raised seedling trays, and the sides of the clamped seedling trays are confined within the corresponding clamping space.

[0008] In some embodiments, the drive unit includes a drive shaft and a rotational power source for driving the drive shaft to rotate; wherein, the drive shaft is provided with connecting arms near both ends, one end of the connecting arm is sleeved on the drive shaft by an expansion sleeve, and the other end is detachably connected to the frame.

[0009] In some embodiments, the rotational power source is connected to the drive shaft via a coupling, and a mounting base is provided between the rotational power source and the connecting arm; The mounting base is equipped with a displacement sensor to sense the rotational position of the connecting arm.

[0010] In some embodiments, the displacement sensor is a Hall sensor or a metal sensor, and the mounting base is provided with a plurality of mounting holes arranged in a ring, and the mounting holes are oblong holes.

[0011] In some embodiments, the frame consists of four hollow square tubes; the outer side wall of each square tube has an installation port; the telescopic component is installed inside the square tube through the installation port.

[0012] In some embodiments, the lifting assembly includes a lifting frame and a lifting power source for driving the lifting frame to move up and down; the top of the lifting frame is connected to a plurality of push rods distributed at intervals; the push rods extend out from the gap between adjacent rollers of the roller conveyor line.

[0013] In some embodiments, the lifting assembly further includes interconnected mounting brackets and extension plates; wherein the mounting brackets are used to connect to the frame, and the extension plates provide a mounting platform for the lifting power source.

[0014] In some embodiments, the mounting brackets are arranged in a pair in parallel, and each mounting bracket is connected to the frame through connecting blocks at both ends; The two sides of the expansion plate are respectively attached to the corresponding mounting brackets, and several guide columns are provided between the expansion plate and the lifting frame. The lifting power source is installed at the bottom of the extension plate and is located between two mounting brackets.

[0015] In some embodiments, the frame is stepped in shape, the drive shaft is rotatably mounted at the high end of the step via a bearing with a seat, and the lifting assembly is located at the low end of the step; the roller conveyor line is located at the low end of the step, and both ends extend out of the low end of the step.

[0016] In some embodiments, the roller conveyor line includes a first conveyor line and a second conveyor line with conveying directions perpendicular to each other; wherein the first conveyor line is located at the lower part of the step of the cover frame, and the second conveyor line is located on one side of the lower part of the step.

[0017] Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The automatic seedling tray feeding device of this utility model adopts a lifting and clamping working method for the seedling tray clamping, and with the stop blocks at both ends of the clamping bar, a two-sided surrounding clamping method can be formed, which can effectively ensure the stability of the seedling tray clamping. At the same time, by optimizing the structure of the clamping unit, multiple seedling tray clamping operations can be completed simultaneously using the clamping bar, which can greatly improve the clamping efficiency.

[0018] (2) The automatic feeding device for seedling trays of this utility model has a hollow square tube frame, which can not only reduce its own weight and save material costs, but also hide the telescopic parts inside the square tube, thereby effectively improving the safety of the telescopic parts when they are working.

[0019] (3) The automatic feeding device for seedling trays of this utility model has a frame that is stepped, with the clamping and flipping component located at the high part of the step and the lifting component and roller conveyor line located at the low part of the step. In this way, during the clamping operation, the frame and the seedling tray to be clamped can be on the same horizontal plane to facilitate clamping.

[0020] (4) The present invention provides an automatic seedling tray unloading device. The roller conveyor line includes a first conveyor line and a second conveyor line with mutually perpendicular conveying directions. The seedling tray can be directly reversed and moved to the cleaning process using the second conveyor line. No additional transfer mechanism is required to switch the seedling tray between the unloading station and the cleaning station, which further simplifies the overall structure of the production line. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an automatic seedling tray feeding device according to the present invention; Figure 2 This is a schematic diagram of the tilting and unloading mechanism in this utility model; Figure 3 This is a partial structural schematic diagram of the tilting and unloading mechanism in this utility model; Figure 4 for Figure 3 A magnified view of a portion of point A in the middle; Figure 5 for Figure 3 A magnified view of a portion of point B in the middle; Figure 6 for Figure 3 A magnified view of a portion of point C in the middle; Figure 7 This is a schematic diagram of the clamping strip in this utility model; Figure 8 This is a schematic diagram of the lifting assembly in this utility model; Figure 9 This is a schematic diagram of the roller conveyor line in this utility model.

[0022] In the diagram: 100, roller conveyor line; 110, first conveyor line; 120, second conveyor line; 200. Tilting and unloading mechanism; 210. Frame; 220. Clamping and tilting assembly; 221. Clamping unit; 2211. Frame; 2212. Telescopic component; 2213. Clamping bar; 2214. Stop block; 222. Drive unit; 2221. Drive shaft; 2222. Rotational power source; 2223. Connecting arm; 2224. Expansion sleeve; 2225. Coupling; 2226. Mounting base; 2227. Displacement sensor; 230. Lifting assembly; 231. Lifting frame; 232. Lifting power source; 233. Push rod; 234. Mounting bracket; 235. Extension plate; 236. Connecting block; 237. Guide column; 300. Seedling tray. Detailed Implementation

[0023] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] The present invention will be further described below with reference to specific embodiments.

[0026] like Figure 1 As shown, an automatic seedling tray feeding device according to this embodiment includes a roller conveyor line 100 and a flipping feeding mechanism 200. The roller conveyor line 100 is used to convey seedling trays 300; at this time, the crops in the seedling trays 300 have been cultivated and are ready for harvest. The flipping feeding mechanism 200 is used to clamp and flip the seedling trays 300 on the roller conveyor line 100 to complete the feeding operation of the crops in the seedling trays 300.

[0027] Specifically, refer to Figure 2 As shown, the flipping and unloading mechanism 200 includes a frame 210 and a lifting assembly 230 and a clamping and flipping assembly 220 mounted on the frame 210. The lifting assembly 230 is located below the roller conveyor line 100 and is used to lift multiple seedling trays 300 from the roller conveyor line 100. The clamping and flipping assembly 220 includes a clamping unit 221 rotatably mounted on the frame 210 and a drive unit 222 that drives the clamping unit 221 to rotate.

[0028] like Figure 3 , Figure 4 As shown, in some embodiments, the clamping unit 221 includes a frame 2211 and a plurality of telescopic members 2212 disposed on opposite sides of the frame 2211. The plurality of telescopic members 2212 located on the same side wall of the frame 2211 are connected to a clamping strip 2213.

[0029] Further, refer to Figure 7 As shown, both the upper and lower ends of the clamping strip 2213 are provided with stop blocks 2214, and a clamping space is formed between the two stop blocks 2214. A set of clamping strips 2213 arranged opposite to each other are used to clamp multiple raised seedling trays 300 at the same time, and the side of the clamped seedling trays 300 is confined within the corresponding clamping space.

[0030] This embodiment of an automatic seedling tray feeding device employs a lifting-then-clamping method for gripping the seedling tray 300. Combined with stop blocks 2214 at both ends of the clamping bar 2213, this forms a two-sided encircling gripping method, effectively ensuring the stability of the seedling tray 300. Furthermore, by optimizing the structure of the clamping unit 221, the clamping bar 2213 can simultaneously perform clamping operations on multiple seedling trays 300, significantly improving clamping efficiency.

[0031] like Figure 4 As shown, in some optional embodiments, the frame 2211 consists of four hollow square tubes. The outer wall of each square tube has an installation port through which the telescopic member 2212 is installed. The telescopic member 2212 utilizes existing technology. For example, it can be replaced by a cylinder, hydraulic cylinder, electric actuator, or other structures capable of telescopic movement of the clamping bar 2213; no specific limitation is made here.

[0032] refer to Figure 3 , Figure 5 , Figure 6 As shown, in one embodiment of the drive unit 222, the drive unit 222 includes a drive shaft 2221 and a rotational power source 2222 for driving the drive shaft 2221 to rotate. The drive shaft 2221 has connecting arms 2223 near both ends. One end of the connecting arm 2223 is fitted onto the drive shaft 2221 via an expansion sleeve 2224, and the other end is detachably connected to the frame 2211.

[0033] Furthermore, the rotational power source 2222 and the drive shaft 2221 are connected by a coupling 2225 to eliminate the misalignment between the output shaft of the rotational power source 2222 and the drive shaft 2221, reduce the impact of welding deformation and installation misalignment, and help to speed up the installation efficiency and production efficiency of the whole set of equipment.

[0034] Meanwhile, a mounting base 2226 is provided between the rotational power source 2222 and the connecting arm 2223. A displacement sensor 2227 is provided on the mounting base 2226 for real-time monitoring of the rotational position of the connecting arm 2223.

[0035] Preferably, the mounting base 2226 is provided with a plurality of mounting holes arranged in a ring, and the mounting holes are oblong holes to facilitate fine adjustment of the position of the displacement sensor 2227.

[0036] In this specific embodiment, the rotation power source 2222 is a servo motor; the displacement sensor 2227 is a Hall sensor or a metal sensor.

[0037] refer to Figure 8 As shown, in one specific embodiment of the lifting assembly 230, the lifting assembly 230 includes a lifting frame 231 and a lifting power source 232 for driving the lifting frame 231 to move up and down. The top of the lifting frame 231 is connected to a plurality of push rods 233 distributed at intervals, and the plurality of push rods 233 protrude from the gap between adjacent rollers of the roller conveyor line 100.

[0038] Furthermore, the lifting assembly 230 includes an interconnected mounting bracket 234 and an extension plate 235; wherein the mounting bracket 234 is used to connect with the frame 210, and the extension plate 235 provides an installation platform for the lifting power source 232.

[0039] Specifically, a pair of mounting brackets 234 are arranged in parallel, and each mounting bracket 234 is connected to the frame 210 through connecting blocks 236 at both ends. The two sides of the extension plate 235 overlap the corresponding mounting brackets 234, and several guide posts 237 are provided between the extension plate 235 and the lifting frame 231. The lifting power source 232 is installed at the bottom of the extension plate 235 and is located between the two mounting brackets 234.

[0040] In some alternative embodiments, the frame 210 is generally stepped, with the drive shaft 2221 of the clamping and flipping assembly 220 rotatably mounted at the higher part of the step via a bearing seat, and the lifting assembly 230 mounted at the lower part of the step via a mounting bracket 234. The roller conveyor line 100 is located at the lower part of the step, with both ends extending beyond it. This design ensures that the frame 2211 and the seedling tray 300 to be clamped are on the same horizontal plane during clamping operations, facilitating clamping.

[0041] Traditional feeding conveyor lines often require a feeding mechanism and a transfer mechanism. The feeding mechanism is used to feed the crops into the seedling trays 300; the transfer mechanism moves the empty seedling trays 300 after feeding to the cleaning conveyor line, where they enter the cleaning station. To prevent interference between the feeding and transfer mechanisms, sufficient operating space must be maintained between them, resulting in an excessively long feeding conveyor line, which is not conducive to space conservation.

[0042] Therefore, in this embodiment, the roller conveyor line 100 includes a first conveyor line 110 and a second conveyor line 120, and the conveying directions of the two conveyor lines are perpendicular to each other. The first conveyor line 110 covers the lower part of the step of the frame 210, and the second conveyor line 120 is located on one side of the lower part of the step.

[0043] In this embodiment, the second conveyor line 120 can be used to directly change the direction of the seedling tray 300 and move it to the cleaning process; no additional clamping mechanism is needed to switch the seedling tray 300 between the unloading station and the cleaning station, which further simplifies the overall structure of the production line.

[0044] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An automatic seedling tray feeding device, comprising a roller conveyor line (100) and a tilting feeding mechanism (200); wherein, The roller conveyor line (100) is used to convey the seedling tray (300), and the flipping feeding mechanism (200) is used to clamp and flip the seedling tray (300) on the roller conveyor line (100) to complete the feeding operation of the crop in the seedling tray (300). The feature is that the flipping and unloading mechanism (200) includes a frame (210) and a lifting assembly (230) and a clamping and flipping assembly (220) disposed on the frame (210); wherein, The lifting assembly (230) is located below the roller conveyor line (100) and is used to lift multiple seedling trays (300) from the roller conveyor line (100); The clamping and flipping assembly (220) includes a clamping unit (221) rotatably mounted on the frame (210) and a driving unit (222) for driving the clamping unit (221) to rotate. The clamping unit (221) includes a frame (2211) and several telescopic members (2212) disposed on opposite sides of the frame (2211). Several telescopic members (2212) located on the same side wall of the frame (2211) are connected to a clamping strip (2213). The clamping bar (2213) is provided with stop blocks (2214) at both the upper and lower ends, and a clamping space is formed between the two stop blocks (2214); A set of clamping bars (2213) arranged opposite to each other are used to clamp multiple raised seedling trays (300) simultaneously, and the side of the clamped seedling tray (300) is confined within the corresponding clamping space.

2. The automatic seedling tray feeding device according to claim 1, characterized in that: The drive unit (222) includes a drive shaft (2221) and a rotational power source (2222) for driving the drive shaft (2221) to rotate; wherein, the drive shaft (2221) is provided with connecting arms (2223) near both ends, one end of the connecting arm (2223) is sleeved on the drive shaft (2221) through an expansion sleeve (2224), and the other end is detachably connected to the frame (2211).

3. The automatic seedling tray feeding device according to claim 2, characterized in that: The rotational power source (2222) is connected to the drive shaft (2221) via a coupling (2225), and a mounting base (2226) is provided between the rotational power source (2222) and the connecting arm (2223). The mounting base (2226) is equipped with a displacement sensor (2227) for sensing the rotational position of the connecting arm (2223).

4. The automatic seedling tray feeding device according to claim 3, characterized in that: The displacement sensor (2227) is a Hall sensor or a metal sensor, and the mounting base (2226) is provided with a plurality of mounting holes arranged in a ring, and the mounting holes are waist-shaped holes.

5. The automatic seedling tray feeding device according to claim 1, characterized in that: The frame (2211) consists of four hollow square tubes; the outer side wall of the square tubes is provided with an installation port; the telescopic component (2212) is installed inside the square tube through the installation port.

6. An automatic seedling tray feeding device according to any one of claims 1-5, characterized in that: The lifting assembly (230) includes a lifting frame (231) and a lifting power source (232) for driving the lifting frame (231) to move up and down; the top of the lifting frame (231) is connected to a plurality of push rods (233) distributed at intervals; the push rods (233) are pushed out from the gap between adjacent rollers of the roller conveyor line (100).

7. The automatic seedling tray feeding device according to claim 6, characterized in that: The lifting assembly (230) also includes an interconnected mounting bracket (234) and an extension plate (235); wherein the mounting bracket (234) is used to connect with the frame (210), and the extension plate (235) provides an installation platform for the lifting power source (232).

8. The automatic seedling tray feeding device according to claim 7, characterized in that: The mounting brackets (234) are arranged in a pair in parallel, and each mounting bracket (234) is connected to the frame (210) through connecting blocks (236) at both ends; The two sides of the extension plate (235) are respectively attached to the corresponding mounting bracket (234), and a number of guide columns (237) are provided between the extension plate (235) and the lifting frame (231). The lifting power source (232) is installed at the bottom of the extension plate (235) and located between the two mounting brackets (234).

9. The automatic seedling tray feeding device according to claim 2, characterized in that: The frame (210) is generally stepped, the drive shaft (2221) is rotatably mounted at the high part of the step via a bearing seat, and the lifting assembly (230) is mounted at the low part of the step; the roller conveyor line (100) is located at the low part of the step, and both ends extend out of the low part of the step.

10. The automatic seedling tray feeding device according to claim 9, characterized in that: The roller conveyor line (100) includes a first conveyor line (110) and a second conveyor line (120) with conveying directions perpendicular to each other; wherein, the first conveyor line (110) is located at the bottom of the step of the cover frame (210), and the second conveyor line (120) is located on one side of the bottom of the step.

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