A feeding control method and control device for a tray conveying system

Abstract

The application discloses a kind of planting disc conveying system's feeding control method and control device, belong to transport equipment technical field.The feeding control device includes:1) for carrying planting disc transport trolley, it includes trolley body, the trolley body includes base, first side plate, second side plate and third side plate, wherein the first side plate, second side plate and third side plate are vertically fixed on base each other, and enclosed formation can accommodate at least one planting disc carrying space;2) for driving transport trolley to move trolley drive mechanism, the trolley drive mechanism is connected with the connecting hole of transport trolley, to realize the synchronous movement of trolley body and trolley drive mechanism;3) counting induction mechanism, it includes microswitch and pressing plate, pressing plate can be contacted with the trigger component, trigger component presses down the pressing plate, and the position change generated by pressing plate is acted on the contact of microswitch, realizes the counting of transport trolley.

Description

Technical Field

[0001] This invention belongs to the field of transportation equipment technology, and more specifically, relates to a feeding control method and control device for a planting tray conveying system, which is particularly suitable for spiral towers. Background Technology

[0002] One of the main challenges in forage production at present is the difficulty in increasing forage yields. This is primarily due to increasing pressure on land resources and the rise in the production of grains, oilseeds, and legumes, leading to significant pressure on forage production. To meet the growing demand for fresh, high-quality forage, the spiral production method can be used to produce forage from corn, barley, oats, sorghum, rye, alfalfa, and triticale. In summary, forage production, as a production model that can sustain continuous year-round production, produce high-quality fresh forage, and has high land resource utilization efficiency, can support regional livestock farms in achieving partial self-sufficiency in high-quality feed, thus possessing significant practical value and economic worth.

[0003] The applicant has been committed to the research and development of forage production technology. For example, in patent document CN113273485A, the applicant disclosed a plant production system in which a chain conveyor belt is located on the support and is movably arranged along it for transporting cultivation trays. With this structure, the cultivation trays are prone to collisions during spiral movement, causing damage. To solve the above problem, patent document CN115072298A discloses a double-helix tower forage growth and transport system, including a first tower body, a second tower body, a transport mechanism, and a guide rail drive mechanism for driving the transport mechanism. A track is formed around the first and second tower bodies; the transport mechanism includes a transport trolley and planting trays placed on the transport trolley.

[0004] In large-scale crop cultivation, planting trays are commonly used to cultivate crops, and conveying equipment is used to move and transport the planting trays to coordinate with planting processes such as nutrient solution spraying and lighting. Currently, the traditional method of conveying planting trays is to place the planting trays directly on a conveyor belt. This method has many drawbacks: 1) The conveyor belt is prone to vibration during operation, causing the planting trays to slip and sway, affecting the stable transport of the planting trays, and may even cause the planting trays to tip over and damage the crops; 2) Traditional conveyor belts can only transport planting trays in a single row, resulting in low transport efficiency, which is difficult to meet the production needs of large-scale planting.

[0005] Meanwhile, during the planting process, nutrient solution needs to be sprayed onto the crops in the planting tray. A large amount of useful salts in the nutrient solution will enter the gap between the planting tray and the conveying equipment during the spraying process. Under the dual effects of the smooth operation of the conveying equipment and the illumination of the lights above the planting tray, the salts are prone to clump together in the gap, which will cause the planting tray and the conveying equipment to stick together. This not only affects the placement and removal of the planting tray, but also contaminates the conveying equipment and increases the difficulty of cleaning the equipment.

[0006] Furthermore, as the variety of crops produced on the spiral tower continues to increase, each feeding (changing to a different crop) is done manually, requiring counting of the specific planting trays. The noise pollution and the inaccuracy of manual counting lead to discrepancies in the crop quantity each time. Therefore, a feeding control device needs to be developed to meet current production requirements. Summary of the Invention

[0007] The problem to be solved To address at least some of the problems existing in the prior art, this invention proposes a feeding control method and feeding control device for a planting tray conveying system, which facilitates the counting of crop types on the spiral tower, thereby achieving accurate production; it fully considers the adverse effects brought about by the spiral tower production process, such as the impact of some fallen roots, stems, leaves, potting soil, and nutrient solution on the counting sensing mechanism; and it solves the problem of planting trays sticking together due to the easy clumping of salts in traditional conveying methods.

[0008] Technical solution To solve the above problems, the technical solution adopted by the present invention is as follows: This invention provides a feeding control method for a planting tray conveying system, comprising the following specific steps: Step S101: Identify the type of planting tray Identify the type of planting tray at the front end of the feeding area, place the planting tray on the transport trolley, and fix the transport trolley and planting tray together; Step S102, Loading materials In the feeding area, the planting trays are fed with materials including barley germ seeds, alfalfa germ seeds, black wheat germ seeds, sorghum germ seeds, rye germ seeds, soybean seedling trays, pepper seedling trays, or cucumber seedling trays; the seeds are spread directly flat in the planting trays, and the seedling trays are placed side by side in the planting trays. Step S103, Counting planting trays Driven by the chain, the transport trolley slowly rises along the track support. When the transport trolley passes the first counting point, the number of transport trolleys that have been loaded can be obtained based on the feedback from the counting sensor mechanism. The feeding control device used in this method includes: 1) A transport trolley for carrying planting trays, the transport trolley being able to move along a multi-layered spiral track, and the spiral track having multiple turning sections; The transport trolley includes a trolley body, which includes a base, a first side plate, a second side plate, and a third side plate. The first side plate, the second side plate, and the third side plate are perpendicularly fixed to the base and enclose a carrying space capable of accommodating at least one planting tray. At least two support parts are provided at intervals along the length of the trolley body on the base for supporting the planting tray, so that a gap is formed between the bottom of the planting tray and the base. The third side plate has an opening in the middle, so that the base protrudes outward on the side facing the opening to form an integral connecting part. The connecting part has at least one slot-shaped hollow opening along the vertical direction of the base, and can be connected to the trolley drive mechanism through the connecting hole at the bottom of the slot-shaped hollow opening. 2) A trolley drive mechanism for driving the transport trolley to move, the trolley drive mechanism including a continuously spirally distributed guide rail and a drive chain; the guide rail includes a straight section and an arc section, wherein the arc section corresponds to the turning section of the spiral track and is connected to the lower part of the upper-level track support by a fixing member, the guide rail opening faces downward, and the two sides of the opening extend to the center of the guide rail to form wing plates; the drive chain includes a chain assembly consisting of chain plates and pins connecting the chain plates, and a triggering component connected to the pin, the number of triggering components corresponding one-to-one with the number of transport trolleys, the triggering component including a roller, a connecting rod, a retaining ring and a roller shaft, the connecting rod being rotatably connected to the pin shaft and limited by the retaining ring, so that the roller can roll along the upper surface of the wing plate in the turning section; 3) and a counting sensing mechanism disposed on the wing plate, which includes a micro switch and a pressure plate. The pressure plate can contact the roller. The roller presses down on the pressure plate and applies the positional change of the pressure plate to the contact of the micro switch to realize the counting of the transport trolley.

[0009] During the production of the spiral tower, crops generate some waste, such as roots, stems, leaves, and potting soil from seedling cultivation. As the spiral tower ascends, some of these materials, such as roots, stems, leaves, and potting soil, fall from the top to the bottom due to vibration. The aforementioned counting and sensing mechanism is located inside the guide rail with the guide rail opening facing downwards, which reduces the amount of material entering the guide rail. This reduces the probability of the pressure plate of the counting and sensing mechanism getting stuck, making the counting and sensing mechanism on the first layer operate more smoothly.

[0010] In addition, the nutrient solution sprayed during the spiral tower production process is rich in potassium, sodium, calcium and other ions. These ions are conductive. Once the counting and sensing mechanism touches the nutrient solution, it will cause a short circuit failure. The guide rail of the present invention has an opening facing downward and forms a wing plate. The wing plate can divert the dripping nutrient solution, thereby effectively avoiding the problem of the counting and sensing mechanism failing due to the nutrient solution.

[0011] The planting tray conveying system of this invention utilizes a connecting part to connect with the trolley drive mechanism to achieve synchronous movement of the trolley body and the trolley drive mechanism. Simultaneously, the planting trays are confined within the carrying space of the trolley body, and multiple rows of planting trays can be arranged within this carrying space. Compared to the traditional conveying method of directly placing the planting trays on the conveyor belt, the conveying system of this embodiment not only achieves stable conveying of the planting trays, reducing the likelihood of tray slippage due to conveyor belt vibration, but also allows for multi-row conveying, thereby improving production efficiency.

[0012] In one possible embodiment of the present invention, the base and the connecting part are at a certain angle α, where α is 1°-2°, preferably 1°, 1.5°, or 2°, so that the base is inclined relative to the connecting part. This angle α provides kinetic energy for the flow of nutrient solution or water, thereby facilitating the drainage of excess nutrient solution or water in the planting tray.

[0013] In one possible embodiment of the present invention, a partition plate is provided on the lower end face of the base, dividing the lower end face of the base into several weight-reducing cavities. The outer edges of these cavities are flush with the lower end face of the connecting part. Simultaneously, the design of these cavities can reduce the weight of the trolley body. The aforementioned partition plate can strengthen the planting tray transport trolley, especially when the planting tray transport trolley is turning. It not only bears the tension of the trolley drive mechanism and centrifugal force, but also, as the crops in the planting tray continue to grow, the weight it bears increases from 5kg-6kg to 10kg-13kg. Therefore, the aforementioned partition plate can improve the strength of the planting tray transport trolley and ensure its reliability.

[0014] In one possible embodiment of the present invention, the partition plates are evenly distributed along the length of the trolley body. Since the bottom surface of the base and the end face of the connecting part form an angle α, the volume of the cavity gradually decreases along the tilt direction of the trolley body.

[0015] In one possible embodiment of the present invention, the support portion divides the bearing space into several areas, and multiple guide portions are provided on the base in each area. The tail end of each guide portion is provided with a drain outlet, which is circular or square in shape. The guide portions can direct the nutrient solution or water dripping from the planting tray, allowing it to quickly collect at the drain outlet and be discharged, further reducing water accumulation on the bottom surface of the base and preventing the seeds in the planting tray from becoming soaked and rotting.

[0016] In one possible embodiment of the present invention, the arrangement direction of the multiple planting trays within the carrying space is perpendicular to the conveying direction of the trolley body. It should be noted that this perpendicularity is not a geometric right angle; a certain degree of offset is permissible, as long as the trolley drive mechanism can synchronously convey multiple rows of planting trays via the trolley body. Simultaneously, the size of the planting trays is clearance-fitted to the size of the carrying space, preventing the planting trays from wobbling or slipping on the trolley body while allowing sufficient space for air circulation and nutrient solution drainage.

[0017] In one possible embodiment of the invention, the support is mainly designed to create a gap between the bottom of the planting tray and its base, facilitating drainage and air circulation to prevent the seeds in the planting tray from becoming waterlogged and rotting. However, if the support is too high, it will increase the height of the conveying trolley, placing higher demands on the design of the spiral tower's layer height H; simultaneously, the distance between the planting tray and the outer edge of the trolley body is too small, which could cause the planting tray to slip off the trolley body.

[0018] Therefore, the top surface height of the support is designed to be 1 / 4 to 2 / 3 of the height of the trolley body, effectively limiting and blocking the planting tray. The height design of the support takes into account both gap reservation and planting tray limitation: ensuring that there is sufficient gap between the bottom of the planting tray and the bottom surface of the base to facilitate drainage and air circulation; and effectively limiting and blocking the planting tray to avoid the overall height of the conveying trolley being too large due to the support being too high, which would place too high requirements on the layer height H design of planting equipment such as the spiral tower, while also preventing the planting tray from slipping out due to being too close to the outer edge of the trolley body.

[0019] In one possible embodiment of the invention, at least one set of rollers is disposed below the trolley body, wherein the number of rollers in one set is two, and the rollers are symmetrically fixed on the base. The rollers reduce the frictional resistance between the trolley body and the bearing surface, making the movement of the transport trolley smoother.

[0020] In one possible embodiment of the present invention, it should be noted that the types of planting trays are classified according to the types of crops they support. The types of planting trays include soybean seedling planting trays, pepper seedling planting trays, cucumber seedling planting trays, corn seedling planting trays, barley seedling planting trays, oat seedling planting trays, sorghum seedling planting trays, rye seedling planting trays, alfalfa seedling planting trays, or black wheat seedling planting trays.

[0021] In one possible embodiment of the present invention, the drive chain includes a chain assembly consisting of chain plates and pins connecting the chain plates, and a triggering component connected to the pins; the triggering component includes rollers, connecting rods, retaining rings, and rollers, the connecting rods are connected to the pins, and the connecting rods are limited by the retaining rings; the rollers are rotatably inserted through the connecting rods, two rollers are disposed on both axial sides of the rollers, the rollers move in a guide rail with an opening facing downwards, and a pressure plate disposed in the guide rail is located on the movement trajectory of the rollers.

[0022] In one possible embodiment of the present invention, the triggering components are spaced apart on the chain assembly to provide positional space for the transport trolley to be assembled with the chain assembly.

[0023] In one possible embodiment of the present invention, the trolley drive mechanism further includes a gear disk; the gear disk is located in the steering section and is used to control the movement of the drive chain.

[0024] In one possible embodiment of the present invention, the planting tray identification is performed manually or using a CCD camera.

[0025] 1) Manual identification can handle unconventional conditions of planting trays, such as surface stains, slight deformation, damaged labels, and mixed varieties. It can make flexible judgments based on the actual scenario and is not limited by preset identification rules. For niche or customized planting tray types, manual identification can quickly match based on experience without additional debugging of the identification system.

[0026] 2) CCD cameras can achieve automated and continuous recognition. A single device can process multiple frames of images per second, and the recognition speed is far superior to manual recognition. It can work continuously, greatly improving the efficiency of planting tray circulation and sorting, and reducing time costs.

[0027] In one possible embodiment of the present invention, the pressure plate includes a plate body having an inclined surface and a flat surface along its length, one end of the plate body being hinged and the other end being a free end; a protrusion is provided on the flat surface near the hinged end, the protrusion being capable of triggering the contacts of the micro switch.

[0028] In one possible embodiment of the present invention, the inclined surface is arranged opposite to the roller traveling direction and protrudes from the upper surface of the guide rail, so that the roller can contact the inclined surface.

[0029] In one possible embodiment of the present invention, the counting sensing mechanism further includes a housing, in which the micro switch and the pressure plate are both disposed and fixed to the wing plate of the guide rail by the housing.

[0030] 3. Beneficial effects Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The feeding control device of the planting tray conveying system of the present invention has the above-mentioned counting and sensing mechanism set in the guide rail, and the guide rail opening faces downward, which can reduce the amount of material entering the guide rail, thereby reducing the probability of the pressure plate of the counting and sensing mechanism being stuck, and making the counting and sensing mechanism located in the first layer run more smoothly; In addition, nutrient solution is sprayed during the production of the spiral tower. Generally, the nutrient solution is rich in potassium, sodium and calcium ions, which are conductive. Once the counting and sensing mechanism touches the nutrient solution, it will cause a short circuit failure. The guide rail opening of the present invention faces downward and forms a wing plate. The wing plate can divert the dripping nutrient solution, thereby effectively avoiding the problem of the counting and sensing mechanism failing due to the nutrient solution. (2) The feeding control device of the planting tray conveying system of the present invention has a counting sensing mechanism directly installed in the guide rail and close to the feeding area. It can sense and count in real time when the planting tray is about to enter the feeding stage. Compared with the external sensing scheme that is far away from the transmission path, it reduces the counting error caused by sensing delay or foreign object interference. At the same time, the structure design located in the first layer avoids the confusion of the hierarchy when multiple layers are transmitted, and ensures that each planting tray entering the feeding area is identified, thereby realizing the control of the feeding quantity and preventing insufficient quantity due to counting errors. (3) The feeding control device of the planting tray conveying system of the present invention uses a mechanical contact triggering logic of the trigger component pressing down the pressure plate to drive the micro switch contact, and the signal feedback is direct and clear; in addition, the above-mentioned shell encapsulation design can prevent dust, water and foreign object impact, reduce accidental damage to internal components and reduce the frequency of daily maintenance. (4) The feeding control device of the planting tray conveying system of the present invention has a hinged end that provides a fixed rotation axis for the pressure plate, ensuring that the swing trajectory of the pressure plate is predictable and avoiding trigger failure caused by displacement; the other end is a free end; the free end can swing flexibly under the action of external force to complete the cycle of pressing, triggering and resetting. (5) The planting tray transport trolley of the present invention forms a carrying space by enclosing the first side plate, the second side plate and the third side plate, and adopts a design of gap matching between the planting tray and the carrying space, combined with the limiting function of the support part, to effectively prevent the planting tray from shaking and slipping during the transport process. Compared with the traditional conveyor belt transport method, the transport stability is improved. At the same time, the carrying space can hold multiple rows of planting trays, realizing the synchronous transport of multiple rows of planting trays, effectively improving production efficiency. (6) The present invention creates a gap between the bottom of the planting tray and the bottom surface of the base through the support part, and introduces air in conjunction with the opening of the third side plate, which can blow away the residual nutrient solution in the gap, reduce the accumulation of salts, and effectively solve the problem of salt clumping and sticking to the planting tray and the trolley body; at the same time, the design of the guide part and the inclined base can drain excess nutrient solution and water, avoid the seeds in the planting tray from soaking and rotting roots, and ensure the normal growth of crops. (7) The present invention reduces the weight of the trolley body and reduces driving energy consumption by setting a partition plate on the bottom surface of the base to form a cavity. The partition plate strengthens the structural strength of the trolley, enabling it to withstand the tension, centrifugal force of the trolley drive mechanism and the increased weight of the planting tray as the crop grows (from 5kg-6kg to 10kg-13kg), ensuring the strength and reliability of the planting tray transport trolley under turning, heavy load and other working conditions. At the same time, the cavity can increase friction during cleaning and improve cleaning convenience. (8) The present invention makes reasonable design of the height of the support part, taking into account the dual requirements of drainage, air circulation and planting tray limit, avoiding the problem of excessive spiral tower height requirements and easy slippage of planting tray caused by excessively high support part, so as to make the structural design of planting tray transport trolley reasonable. (9) The conveying system of the present invention is connected to the connecting part of the planting tray transport trolley through the trolley drive mechanism, so as to realize the synchronous movement of the planting tray transport trolley. With the structural design of the planting tray transport trolley, the overall conveying process is stable and suitable for planting tray conveying scenarios of large-scale crop planting. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the feeding control device of the planting tray conveying system of the present invention; Figure 2 This is a top view of the feeding control device of the planting tray conveying system of the present invention; Figure 3 This is a front view of the feeding control device of the planting tray conveying system of the present invention; Figure 4 for Figure 3 A magnified structural diagram of section C; Figure 5 This is a schematic diagram of the chain and guide rail cooperation of the feeding control device of the planting tray conveying system of the present invention; Figure 6 An enlarged view of the guide rail and counting sensor mechanism of the feeding control device of the planting tray conveying system of the present invention; Figure 7 This is a schematic diagram of the pressure plate structure of the feeding control device of the planting tray conveying system of the present invention; Figure 8 This is a schematic diagram of the chain assembly of the feeding control device of the planting tray conveying system of the present invention; Figure 9 This is a schematic diagram of the guide rail for guiding nutrient droplets and roots, stems and leaves in the feeding control device of the present invention; Figure 10 This is a three-dimensional structural diagram of the planting tray conveying trolley of the feeding control device of the present invention; Figure 11 This is a front view schematic diagram of the planting tray conveying trolley of the feeding control device of the present invention; Figure 12 for Figure 11 Sectional view along line AA; Figure 13 for Figure 11 Sectional view along line BB; Figure 14 This is a bottom view of the planting tray conveying trolley of the feeding control device of the present invention; Figure 15 This is a schematic diagram showing the cooperation between the planting tray conveying trolley and the drive assembly of the feeding control device of the present invention; Figure 16 for Figure 15 The right view; Figure 17 This is a schematic diagram of the assembly structure of the planting tray conveying trolley of the feeding control device of the present invention; Figure 18 This is a schematic diagram showing the usage status of the planting tray conveyor trolley of the feeding control device of the present invention.

[0032] Explanation of reference numerals in the attached figures: 100. Transport trolley; 110. Base; 111. Support; 1111. Top surface; 112. Divider plate; 113. Flow guide; 114. Drain outlet; 115. Lower end face; 120. First side plate; 130. Second side plate; 140. Third side plate; 141. Opening; 150. Bearing space; 160. Connecting part; 161. Groove-shaped hollow opening; 162. Connecting hole; 200. Carriage drive mechanism; 210. Guide rail; 211. Straight section; 212. Arc section; 213. Wing plate; 220. Chain assembly; 221. Chain plate; 222. Pin; 230. Triggering component; 231. Roller; 232. Connecting rod; 233. Retaining ring; 234. Roller; 300. Counting sensing mechanism; 310. Housing; 320. Micro switch; 321. Contact; 330. Pressure plate; 331. Plate body; 332. Inclined surface; 333. Flat surface; 334. Protrusion; 400. Track support; 410. Loading area; 420. Tower; 430. Spiral track; 440. Turning section; 500. Gear disk; 600. Seed container; 700. Air emission outlet; 800, Planting tray. Detailed Implementation

[0033] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0034] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] The present invention will be further described below with reference to specific embodiments.

[0036] like Figures 1 to 18 As shown, the spiral tower disclosed in this document includes a tower 420, a planting tray 800 conveying system, a fluid supply system, a lighting system, a ventilation system, and a matching planting tray 800. The planting tray 800 conveying system is installed and arranged based on the tower 420, while the fluid supply system, lighting system, and ventilation system can be selectively arranged on or around the tower 420 according to actual needs.

[0037] like Figure 1 and Figure 2 As shown, the aforementioned tower 420 is a multi-layered spiral structure with a defined path formed by spiral tracks 430. In some embodiments, a spiral tower has two or more adjacent even-numbered towers 420. The spiral tracks 430 extend spirally upward from the underside of one tower 420 at a certain angle relative to the horizontal plane to the upper side of the tower 420, then extend at a certain angle or horizontally to the upper side of another adjacent tower 420, and from the upper side of the other tower 420 extend spirally downward to the lower side at a certain angle. When there are only two towers 420, the underside of one tower 420 is a loading area 410, and the underside of the other tower 420 is a unloading area. When there are more even-numbered towers 420, the track on the underside of the second tower 420 extends at a certain angle or horizontally to the underside of an adjacent third tower 420, and the same spiral structure is repeated on the third tower 420 and subsequent towers 420, forming an unloading area on the underside of the last tower 420.

[0038] In some embodiments, the spiral tracks 430 of multiple towers 420 are a single integrated track. In other embodiments, the spiral track 430 is formed by splicing and assembling multiple components. Each layer of the spiral track 430 can be fabricated as a separate annular component with the same structure and a certain inclination angle. The ends of two components can be engaged or aligned and then fixedly connected by bolts or other detachable methods to ultimately form an integral track support 400 structure. It should be noted that the spiral track 430 connecting two towers 420 is fabricated separately as one or more straight components. At the same time, the ends of the two annular components located on the uppermost and lowermost sides of the towers 420 need to be pre-fabricated according to the actual situation to match the structure of the loading area 410, the unloading area, or the straight components.

[0039] The feeding control method of the planting tray conveying system in this embodiment includes the following specific steps: Step S101: Manually identify the type of planting tray 800 The type of planting tray 800 is identified at the front end of the feeding area 410 (mainly based on the crop type in the planting tray). Then, the planting tray 800 is placed on the transport trolley 100 and the transport trolley 100 is fixed to the planting tray 800. The specific method of fixing the transport trolley 100 to the planting tray can adopt the connection method of CN115072298A. Step S102, manual feeding In the feeding area 410, seeds are fed from the seed tank 600 to the planting tray 800. The types of seeds fed include barley germ seeds, alfalfa germ seeds, black wheat germ seeds, sorghum germ seeds, rye germ seeds, and soybean germ seeds; such as... Figure 1 and Figure 2 As shown, seed container 600 stores barley germ seeds, alfalfa germ seeds, black wheat germ seeds, sorghum germ seeds, etc.

[0040] In addition, for some crops that are packaged in seedling boxes, such as soybean seedling boxes, pepper seedling boxes, or cucumber seedling boxes, manual feeding can be used; Step S103, 800 counts for planting trays Driven by the chain, the transport trolley 100 slowly rises along the track support 400. When the transport trolley 100 passes the first counting point, the number of transport trolleys 100 that have been loaded can be obtained based on the feedback from the counting sensing mechanism 300.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, the first counting point is located on the first layer of the track support 400, near the loading area 410. The counting sensing mechanism 300 can be installed inside the guide rail 210 with the opening facing downwards.

[0042] The types of planting trays 800 include soybean seedling trays, pepper seedling trays, cucumber seedling trays, corn seedling trays, barley seedling trays, oat seedling trays, sorghum seedling trays, rye seedling trays, alfalfa seedling trays, or black wheat seedling trays, etc.

[0043] like Figure 3 and Figure 4 As shown, the feeding control device of the planting tray conveying system in this embodiment includes: 1) a transport trolley 100 for carrying the planting tray 800, the transport trolley being able to move along a multi-layer spiral track, and the spiral track 430 having multiple turning sections 440; 2) a trolley drive mechanism 200; and 3) a counting sensing mechanism 300 disposed in the guide rail 210, the counting sensing mechanism 300 being located in the first layer and close to the feeding area 410; the first layer mentioned above is the corresponding first layer of the spiral track.

[0044] In this embodiment, the aforementioned counting sensing mechanism 300 is directly installed inside the guide rail 210 and close to the feeding area 410. It can sense and count in real time when the planting tray 800 is about to enter the feeding stage. Compared with the external sensing scheme that is far away from the transmission path, it reduces the counting error caused by sensing delay or foreign object interference. At the same time, the structural design located in the first layer can avoid the confusion of layers during multi-layer transportation, ensure that each planting tray entering the feeding area is identified, realize the control of the feeding quantity, and prevent insufficient quantity caused by counting errors.

[0045] In this embodiment, as Figure 2 As shown, the trolley drive mechanism 200 includes a gear disk 500, a continuous spiral distribution guide rail 210, and a drive chain. The drive chain is disposed within the continuous spiral distribution guide rail 210. The drive chain is provided with trigger components 230 corresponding one-to-one with the number of transport trolleys 100. The gear disk 500 is located in the steering section 440 and is connected to the gear shaft and the motor for controlling the movement of the drive chain.

[0046] like Figure 10 , Figure 13 , Figure 15 and Figure 17As shown, the planting tray transport trolley 100 of this embodiment includes a trolley body, which includes a base 110, a first side plate 120, a second side plate 130, and a third side plate 140. The first side plate 120, the second side plate 130, and the third side plate 140 are fixed perpendicularly to each other on the base 110, forming a carrying space 150 that can accommodate three rows of planting trays 800. Crops such as barley, oats, sorghum, rye, alfalfa, and black wheat can be placed in the planting trays 800. The size of the planting trays 800 is slightly smaller than the carrying space 150, and the two are fitted with a gap. The arrangement direction of the three rows of planting trays 800 is perpendicular to the conveying direction of the trolley body, and an offset of less than 0.5° is allowed.

[0047] The planting tray transport trolley 100 of the present invention forms a carrying space 150 by enclosing a first side plate 120, a second side plate 130, and a third side plate 140. It adopts a design of gap fit between the planting tray 800 and the carrying space 150, and with the limiting function of the support part 111, it effectively avoids the shaking and slippage of the planting tray 800 during the transport process. Compared with the traditional conveyor belt transport method, the transport stability is greatly improved. At the same time, the carrying space 150 can hold multiple rows of planting trays 800, realize the synchronous transport of multiple rows of planting trays 800, and effectively improve production efficiency.

[0048] exist Figure 12 and Figure 13 In the middle, the base 110 has three support parts 111 spaced apart along the length of the trolley body. The support parts 111 are cuboid protrusions and are integrally formed with the base 110. The height of the top surface 1111 of the support parts 111 is 1 / 2 of the height of the trolley body. The support parts 111 support the planting tray 800, so that a 5mm gap is formed between the bottom of the planting tray 800 and the base 110.

[0049] Combination Figure 13 As shown, in order to effectively limit and block the planting tray 800, the height design of the support part 111 takes into account both the gap reserve and the limitation of the planting tray 800: ensuring that the bottom of the planting tray 800 and the bottom surface of the base 110 form a sufficient gap to facilitate drainage and air circulation; and effectively limiting and blocking the planting tray 800, avoiding the overall height of the transport trolley 100 being too large due to the support part 111 being too high, and avoiding placing too high requirements on the layer height H design of planting equipment such as the spiral tower, while preventing the planting tray 800 from slipping out due to being too close to the outer edge of the trolley body.

[0050] Furthermore, such as Figure 11As shown, the three support parts 111 divide the bearing space 150 into four areas. Each area has four guide parts 113 integrally formed on the bottom surface of the base 110. The guide parts 113 are arc-shaped protrusions that extend to the edge. A circular drain outlet 114 is provided at the tail end of the guide part 113, which penetrates the base 110.

[0051] In this embodiment, as Figure 11 , Figure 14 and Figure 15 As shown, a rectangular opening 141 is provided in the middle of the third side plate 140. The base 110 protrudes outward from the side facing the opening 141 to form an integral connecting part 160. The connecting part 160 has two parallel slot-shaped hollow openings 161 along the vertical direction of the base 110. A circular connecting hole 162 is provided at the bottom of each slot-shaped hollow opening 161. The connecting hole 162 is used to cooperate with the pin 222 of the trolley drive mechanism 200.

[0052] It should be emphasized that, regardless of whether the planting tray 800 is placed in the first or second direction, in order to avoid the planting tray 800 from shaking or slipping on the trolley body, the size of the planting tray 800 is slightly smaller than that of the carrying space 150. This can generally be understood as a clearance fit.

[0053] The crops in the aforementioned planting tray 800 require nutrient solution spraying to ensure their growth. However, the nutrient solution contains a large amount of useful salts. For example, the nutrient solution is composed of the following components: calcium nitrate tetrahydrate 52.8-53.8g; magnesium sulfate heptahydrate 20.0-21.0g; potassium dihydrogen phosphate 0.8-1.5g; ferrous sulfate heptahydrate 0.6-0.9g; zinc sulfate heptahydrate 0.12-0.23g; manganese sulfate tetrahydrate 0.15-0.25g; copper sulfate pentahydrate 0.050-0.15g; boric acid 0.015-0.025g; sodium chloride. 0.02-0.04g; potassium sulfate 16.08-18.08g; ammonium nitrate 3.33-3.53g. The nutrient solution is stored in a nutrient solution storage tank. The system's liquid pump delivers the nutrient solution to each layer of the spiral structure of the rotating tower through the supply pipe. After the nutrient solution enters each layer of the spiral structure, it is sprayed evenly onto the crop surface in the form of small droplets through the spray head above the planting tray 800, once every 2 hours. Each spray lasts for half a minute, and 1 liter of nutrient solution is sprayed onto the area covered by each spray nozzle to fully saturate the crop.

[0054] These salts, sprayed with nutrient solution, enter the gap between the planting tray 800 and the carrying space 150. The planting tray transport trolley 100 operates smoothly, and with the illumination from the lights above the planting tray 800 (as shown in patent CN114831010A), the salts clump together in the gap and adhere to the planting tray 800 and the trolley body. To address this, the inventors conducted extensive analysis and research. On the one hand, they ensured the strength of the connecting part 160; on the other hand, the third side plate 140 has an opening 141 in the middle, combined with the air exhaust outlets 700 of each layer (to dilute the oxygen concentration, a large amount of air needs to be blown in). Through the opening 141, some air can be blown into the gap between the planting tray 800 and the carrying space 150. This air can carry away some of the residual nutrient solution, thereby reducing the possibility of clumping and adhesion.

[0055] In this embodiment, Figure 10 and Figure 18 In the middle of the third side plate 140, the opening 141 has multiple functions: on the one hand, combined with the air exhaust outlet 700 set up in the planting process to dilute the oxygen concentration, external air can be blown into the gap between the planting tray 800 and the carrying space 150 through the opening 141, blowing away some of the residual nutrient solution in the gap, reducing the accumulation of salts, thereby effectively reducing the possibility of salts clumping and sticking to the planting tray 800 and the trolley body; on the other hand, the design of the opening 141 also facilitates the cleaning of dirt in the gap, improving the cleaning convenience of the planting tray 800.

[0056] exist Figure 3 In this case, the air exhaust outlet 700 is located between the two layers of track supports 400 and close to the upper track support 400. The height of the air exhaust outlet 700 is between 100-200mm. The air exhausted from the air exhaust outlet 700 can blow towards the crop stems and leaves in the planting tray, and at the same time towards the opening 141 on the trolley body.

[0057] Furthermore, in Figure 13 In this configuration, the base 110 and the connecting part 160 form an angle α, where α = 1.5°, causing the base 110 to be inclined relative to the connecting part 160. A partition plate 112 is welded and fixed to the lower end face 115 of the base 110. The partition plates 112 are evenly distributed along the length of the trolley body, dividing the base 110 into several cavities. The outer edge of each cavity is flush with the lower end face 115 of the connecting part 160. Because the bottom surface of the base 110 is inclined, the volume of the cavities gradually decreases along the inclination direction of the trolley body. Figure 13 The arrow in the diagram indicates the direction. This can be understood as the height h2 gradually decreasing to the height h1 along the direction indicated by the arrow, where the value represented by h2 is greater than the value represented by h1.

[0058] The aforementioned partition plate 112 can enhance the strength of the planting tray transport trolley 100. In particular, when the planting tray transport trolley 100 turns, it not only bears the tension of the trolley drive mechanism 200 and the centrifugal force, but also, as the crops in the planting tray 800 continue to grow, the weight it bears increases from 5kg-6kg to 10kg-13kg. Therefore, the aforementioned partition plate 112 can improve the strength of the planting tray transport trolley 100 and ensure its reliability.

[0059] During field use, it was found that disassembling the planting tray transport trolley 100 and cleaning its surface and internal dirt revealed that the cavity design increased the friction between the transport trolley 100 and the bearing surface, which facilitated cleaning.

[0060] exist Figure 14 and Figure 16 In this design, the connecting part 160 and the base 110 are an integral structure, and the connecting part 160 has a slotted hollow opening 161. While ensuring the connection strength between the connecting part 160 and the trolley drive mechanism 200, the weight of the trolley body is further reduced. At the same time, the slotted hollow opening 161 also facilitates the alignment and installation of the connecting hole 162 and the trolley drive mechanism 200.

[0061] In addition to reducing weight, the cavity on the bottom surface of the base 110 also increases the friction between the trolley body and the bearing surface when the planting tray transport trolley 100 is disassembled and cleaned, making it less likely for the trolley body to slip during the cleaning process and improving the convenience of the cleaning operation.

[0062] In the planting process, such as Figure 18 As shown, the air exhaust outlet 700, designed to dilute the oxygen concentration, blows air towards the planting tray transport trolley 100. Some of the air is blown into the gap between the planting tray 800 and the carrying space 150 through the opening 141 of the third side plate 140 (as shown by the arrow in the figure, which indicates the direction of the air). Taking full advantage of the inclined setting of the base 110, the blown air is blocked after being blown downwards and then moves upwards, thereby blowing away some of the residual nutrient solution in the gap and minimizing the accumulation of salts. The excess nutrient solution in the planting tray 800 is guided and collected by the guide part 113 to the drain outlet 114 for discharge. Under the action of the bottom surface of the base 110 at an inclination angle of 1.5°, the nutrient solution flows quickly to the drain outlet 114 without any water residue.

[0063] After a period of use, the planting tray transport trolley 100 of this embodiment is disassembled for cleaning. The cavity on the bottom surface of the base 110 increases the friction between the trolley body and the ground. During the cleaning process, the trolley body remains stable, which facilitates cleaning the gap between the planting tray 800 and the bearing space 150, as well as the bottom surface of the base 110. After cleaning, the planting tray transport trolley 100 is reinstalled into the trolley drive mechanism 200 and can be put into use again.

[0064] Furthermore, in Figure 2 and Figure 4 In the design, the guide rail 210 includes a straight section 211 and an arc-shaped section 212. The arc-shaped section 212 corresponds to the turning section 440 of the spiral track 430 and is connected to the lower part of the upper track support 400 through a fastener (not shown in the figure). There is a gap between the guide rail 210 and the gear disk 500 (driving chain turning). The number of the fasteners can be set around the rotation direction. The fastener is located in the gap between two gear disks 500 in the vertical direction. For example, the fastener is set at the free end of the track support 400. The fastener is a connecting rod and will not interfere with the normal rotation of the gear disk 500 and the transport trolley 100. It not only provides support for the guide rail 210, but also ensures the smooth operation of the driving chain. The straight section 211 is distributed along the length direction of the spiral tower.

[0065] The above hierarchy can be understood as the spiral tower being divided into several layers. For example, a 15-meter-high spiral tower can be divided into 17 layers.

[0066] Furthermore, combined Figure 5 As shown, the guide rail 210 has an opening facing downwards, and two sides of the opening extend to the center of the guide rail 210 to form wing plates 213. The drive chain includes a chain assembly 220 consisting of a chain plate 221 and a pin 222 connecting the chain plate 221, and a triggering component 230 connected to the pin 222. The number of triggering components 230 corresponds one-to-one with the number of transport trolleys 100. The triggering component 230 includes a roller 231, a connecting rod 232, a retaining ring 233, and a roller 234. The connecting rod 232 is rotatably connected to the pin 222 (which can adjust the direction in time, thereby reducing the friction between the roller and the guide rail 210), and the connecting rod 232 is limited by the retaining ring 233, so that the roller 231 can roll along the upper surface of the wing plate 213 in the turning section 440.

[0067] Field testing revealed that during the spiral tower production process, crops generate some waste, such as roots, stems, leaves, and potting soil from seedling cultivation. As the spiral tower ascends, due to vibration (transmitted by the drive motor), some of these materials fall from the top to the bottom. Figure 9 As can be seen, guide rail 210 is located on the movement trajectory of the planting tray, and the aforementioned roots, stems, leaves, and potting soil will fall onto guide rail 210. The aforementioned counting and sensing mechanism is set inside the guide rail, and the guide rail opening faces downward, which can reduce the probability of some substances entering the guide rail, thereby reducing the probability of the pressure plate of the counting and sensing mechanism being stuck, making the counting and sensing mechanism located on the first layer operate more smoothly.

[0068] In addition, excess nutrient solution sprayed during the spiral tower production process will flow out from the planting tray. The nutrient solution in the planting tray located on the guide rail 210 will fall into the guide rail 210. Generally, the nutrient solution is rich in potassium, sodium, calcium and other ions. These ions are conductive. The present invention is designed with the guide rail opening facing downward and forming a wing plate 213. The wing plate can divert the dripping nutrient solution, effectively avoiding the problem of the counting and sensing mechanism failing due to the nutrient solution.

[0069] In addition, combined Figure 5 As shown, the roller 234 is rotatably mounted on the connecting rod 232, and two rollers 231 are disposed on both sides of the roller 234. The rollers 231 can move along the guide rail 210, and the pressure plate 330 disposed in the guide rail 210 is located on the movement trajectory of the rollers 231. It should be noted that the transport trolley 100 is fixed to the pin 222, and its end is far away from the counting sensing mechanism and will not touch the counting sensing mechanism 300. Furthermore, the transport trolley 100 will not touch the guide rail 210 during movement, ensuring the normal operation of the transport trolley 100.

[0070] Taking full account of the installation location of the transport trolley 100, in Figure 8 and Figure 17 In this configuration, the triggering components 230 are spaced apart on the chain assembly 220, providing space for the assembly of the transport trolley 100 and the chain assembly 220. Since the chain assembly 220 needs to bear the weight of the transport trolley and transmit driving force, if the triggering components are densely installed without spacing, it will lead to localized stress concentration in the chain. Furthermore, the densely packed additional components will alter the chain's flexibility and stress balance, potentially causing chain deformation and loosening or detachment of the triggering components during long-term operation.

[0071] The rollers described above need to be configured in conjunction with the chain pins, and the spacing mentioned above is relative to the pins.

[0072] In addition, the spacing arrangement ensures that the weight and force of the triggering component are evenly distributed on the chain assembly, avoiding local overload; at the same time, the reserved space can reduce the rigid contact between the transport trolley and the triggering component after assembly, reduce mutual wear caused by vibration during operation, and extend the service life of the chain assembly and the transport trolley.

[0073] Combination Figure 5 and Figure 6As shown, the counting sensing mechanism 300 includes a housing 310, a micro switch 320, and a pressure plate 330. The micro switch 320 and the pressure plate 330 are both disposed inside the housing 310 and fixed to the wing plate of the guide rail 210 by the housing 310 (fixed by screws). The pressure plate 330 can contact the triggering component 230. The triggering component 230 presses down on the pressure plate 330 and the positional change of the pressure plate 330 acts on the contact 321 of the micro switch 320 to realize the counting of the transport trolley 100.

[0074] In this embodiment, as Figure 7 As shown, the pressure plate 330 includes a plate body 331. The plate body 331 has an inclined surface 332 and a flat surface 333 along its length. One end of the plate body 331 is hinged, and the hinged end provides a fixed rotation axis for the pressure plate 330, ensuring that the swing trajectory of the pressure plate 330 is predictable and avoiding trigger failure caused by displacement. The other end is a free end. A protrusion 334 is provided on the flat surface 333 near the hinged end. The protrusion 334 can trigger the contact 321 of the micro switch 320. The free end can swing flexibly under the action of external force to complete the cycle of pressing, triggering, and resetting. In order to better complete the resetting, a spring can be provided on the protrusion 334, and the other end of the spring abuts against the micro switch 320. At the same time, the spring can provide elastic force for excessive pressing of the pressure plate, thereby preventing the pressure plate from damaging the micro switch.

[0075] In this embodiment, as Figure 6 and Figure 7 As shown, the inclined surface 332 is positioned opposite to the roller 231 along its traveling direction and protrudes from the upper surface of the wing plate 213, allowing the roller 231 to contact the inclined surface 332. The roller 231 is made of polyurethane, and the pressure plate 330 is made of magnesium-aluminum alloy. The roller 231 and the pressure plate 330 fit together well, resulting in good performance. It should also be noted that the spiral tower operates continuously; therefore, the pressure plate 330 can remain in a long-term working state.

[0076] Through field use, it was found that the distance between the unloaded transport trolley 100 and the pressing plate did not exceed 1mm. When the transport trolley was carrying planting trays and crop seeds (increasing the weight by 5kg-8kg), the distance between the transport trolley and the pressing plate was 1.5-2mm. Therefore, this invention controls the contact stroke between the roller and the contact point 321 of the micro switch 320, and sets a reasonable trigger threshold of ≥1mm to determine effective triggering. Vibrations or slight touches below this stroke do not generate a signal.

[0077] Extensive usage verification, such as continuous production of the spiral tower for one month, with 5 feedings based on a 7-day design time:

[0078] The microswitch designed in this invention has a false trigger rate of less than 0.2%, which meets the usage requirements of this invention.

[0079] 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 spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A feeding control device for a planting tray conveying system, characterized in that, It includes: A transport trolley (100) for carrying planting trays (800) is capable of moving along a multi-layered spiral track (430), and the spiral track (430) has multiple turning sections (440); the transport trolley (100) includes a trolley body, the trolley body including a base (110), a first side plate (120), a second side plate (130) and a third side plate (140), wherein the first side plate (120), the second side plate (130) and the third side plate (140) are perpendicularly fixed to the base (110) and enclose a carrying space (150) capable of accommodating at least one planting tray (800). At least two support parts (111) are provided at intervals along the length direction of the trolley body on the base (110) for supporting the planting tray (800) so that a gap is formed between the bottom of the planting tray (800) and the base (110). The third side plate (140) has an opening (141) in the middle, so that the base (110) protrudes outward on the side facing the opening (141) to form an integral connecting part (160). The connecting part (160) has at least one slotted hollow opening (161) along the vertical direction of the base (110). It can be connected to the trolley drive mechanism (200) through the connecting hole (162) at the bottom of the slotted hollow opening (161). A trolley drive mechanism (200) for driving the transport trolley (100) to move includes a continuous spiral distribution guide rail (210) and a drive chain; the guide rail (210) includes a straight section (211) and an arc section (212), wherein the arc section (212) corresponds to the turning section (440) of the spiral track (430) and is connected to the lower part of the upper level track support (400) by a fixing member; the opening (141) of the guide rail (210) faces downward, and the two sides of the opening (141) extend to the center of the guide rail to form a wing plate (213). The drive chain includes a chain assembly (220) consisting of a chain plate (221) and a pin (222) connecting the chain plate (221), and a triggering component (230) connected to the pin (222). The number of triggering components (230) corresponds one-to-one with the number of transport trolleys (100). The triggering component (230) includes a roller (231), a connecting rod (232), a retaining ring (233), and a roller (234). The connecting rod (232) is rotatably connected to the pin (222), and the connecting rod (232) is limited by the retaining ring (233), so that the roller (231) can roll along the upper surface of the wing plate (213) in the turning section (440). And a counting sensing mechanism (300) is provided on the wing plate (213), which includes a micro switch (320) and a pressure plate (330). The pressure plate (330) can contact the roller (231). The roller (231) presses down on the pressure plate (330) and applies the position change of the pressure plate (330) to the contact (321) of the micro switch (320) to realize the counting of the transport trolley (100); The pressure plate (330) includes a plate body (331), which has an inclined surface (332) and a flat surface (333) along its length. One end of the plate body (331) is hinged, and the other end is a free end. A protrusion (334) is provided on the flat surface (333) near the hinged end. The protrusion (334) can trigger the contact (321) of the micro switch (320). The inclined surface (332) is arranged opposite to the roller (231) in the direction of travel and protrudes from the upper surface of the wing plate (213), so that the roller (231) can contact the inclined surface (332); The base (110) and the connecting part (160) are at a certain angle α, where the angle α is 1-2°, so that the base (110) is inclined relative to the connecting part (160).

2. The feeding control device according to claim 1, characterized in that, The roller (234) is rotatably inserted through the connecting rod (232), and two rollers (231) are arranged on both sides of the axial direction of the roller (234). The rollers (231) move in the guide rail (210) with the opening (141) facing downward. The pressure plate (330) arranged in the guide rail (210) is located on the movement trajectory of the rollers (231).

3. The feeding control device according to claim 2, characterized in that, The triggering components (230) are spaced apart on the chain assembly (220) to provide positional space for the transport trolley (100) to assemble with the chain assembly (220).

4. The feeding control device according to claim 3, characterized in that, The trolley drive mechanism (200) also includes a gear disk (500); the gear disk (500) is used to control the movement of the drive chain.

5. The feeding control device according to claim 4, characterized in that, The planting tray (800) is identified by manual identification or by a CCD camera.

6. The feeding control device according to claim 5, characterized in that, The counting sensing mechanism (300) also includes a housing (310), in which the micro switch (320) and the pressure plate (330) are both disposed within the housing (310) and fixed to the wing plate (213) of the guide rail (210) via the housing (310).

7. The feeding control device according to claim 6, characterized in that, The lower end face (115) of the base (110) is provided with a partition plate (112), which divides the bottom surface of the base (110) into several weight-reducing cavities. The outer edge of the cavity is flush with the lower end face (115) of the connecting part (160).

8. The feeding control device according to claim 7, characterized in that, The partition plates (112) are evenly distributed along the length of the trolley body, and the bottom surface of the base (110) and the end face of the connecting part (160) are at an angle α, so that the volume of the cavity gradually decreases along the tilt direction of the trolley body.

9. The feeding control device according to claim 8, characterized in that, The support (111) divides the bearing space (150) into several regions. In each region, the base (110) is provided with multiple guides (113), and the tail of the guide (113) is provided with a drain (114).

10. The feeding control device according to claim 9, characterized in that, The drain outlet (114) is circular or square in shape.

11. The feeding control device according to claim 10, characterized in that, The arrangement of multiple planting trays (800) within the carrying space (150) is perpendicular to the conveying direction of the trolley body.

12. The feeding control device according to claim 11, characterized in that, The height of the top surface (1111) of the support part (111) is designed to be 1 / 4 to 2 / 3 of the height of the trolley body, so that the bottom of the planting tray (800) and the bottom surface of the base (110) form a sufficient gap.

13. A feeding control method for the feeding control device according to any one of claims 1-12, characterized in that, The specific steps include the following: Step S101: Identify the type of planting tray (800) Identify the type of planting tray (800) at the front end of the feeding area (410), place the planting tray (800) on the transport trolley (100), and fix the transport trolley (100) and the planting tray (800); Step S102, Loading materials In the feeding area (410), the material is fed into the planting tray (800); Step S103, Counting of planting trays (800) Driven by the chain, the transport trolley (100) slowly rises along the track support (400). When the transport trolley (100) passes the first counting point, the number of the loaded transport trolleys (100) can be obtained based on the feedback from the counting sensing mechanism (300).

14. The feeding control method according to claim 13, characterized in that, The types of planting trays (800) include soybean seedling planting trays, pepper seedling planting trays, cucumber seedling planting trays, corn seedling planting trays, barley seedling planting trays, oat seedling planting trays, sorghum seedling planting trays, rye seedling planting trays, alfalfa seedling planting trays, or black wheat seedling planting trays.

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