An automatic harvesting device for hydroponic vegetables

Abstract

The application discloses an automatic harvesting device for water-cultivated vegetables and relates to the technical field of agricultural machinery, which comprises a rack, a conveying device and a cutting device installed on the rack, wherein the conveying device is provided with a synchronous belt with a protruding plate, and the planting basket bodies are placed on the synchronous belt at intervals; the cutting device is assembled with cutting blades on the side of the synchronous belt; during work, the synchronous belt pushes the planting basket bodies to the cutting blades through the side wall protruding plate, and the water-cultivated vegetables are separated from the planting basket bodies through the rotation of the cutting blades, so that the two fall into the corresponding collecting baskets, respectively; the planting basket bodies adopt a composite conveying mode of straight lines, elbow bends and curved downward, which has multiple advantages: in the straight conveying stage, the synchronous belt and the chain wheel and the flat belt are linked, which is suitable for the batch operation demand of large-scale planting; the arc elbow bend design replaces the traditional right-angle elbow bend structure, which not only avoids the risk of jamming and deviation of the planting basket bodies at the corner, but also greatly compresses the straight-line occupied space of the equipment, and is more suitable for the planting scene with limited space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular to an automatic harvesting device for water-cultivated vegetables. BACKGROUND

[0002] At present, with the continuous innovation of agricultural technology, water-cultivated vegetables as a new soilless planting technology have rapidly emerged, and with the advantages of no seasonal restrictions, year-round continuous production, high yield per unit area, and short growth cycle, they have become an important agricultural model suitable for batch planting and have broad prospects in agricultural development.

[0003] However, the current water-cultivated vegetable planting industry has not yet achieved full automation, and manual operation is still the main method in various production processes. The harvesting process, as the final key procedure, faces urgent problems that need to be solved. How to achieve efficient and safe automatic harvesting of water-cultivated vegetables has become an important issue for promoting their large-scale development.

[0004] In the existing water-cultivated vegetable production process, the entire process from vegetable maturity to completion of harvesting is completed by manual operation: workers need to pick up the planting baskets carrying mature vegetables one by one, then manually separate the vegetables from the planting baskets using knives, scissors, and other tools, and finally collect the vegetables and planting baskets and classify them. This process is not only tedious, but also has many outstanding problems: 1. Manual harvesting is inefficient and cannot meet the needs of large-scale planting. The batch planting characteristics of water-cultivated vegetables require the harvesting process to have efficient and continuous operation capabilities. However, manual operations such as picking, separating, and collecting are repetitive and labor-intensive, leading to worker fatigue and labor shortages, affecting production continuity. At the same time, the speed of manual operation is limited, and the harvesting capacity per unit time cannot meet the production capacity requirements of large-scale planting, directly reducing overall production efficiency. 2. Manual operation has unstable product quality and food safety risks. Manual cutting lacks uniform technical standards, and the cutting force and position are controlled entirely by experience, resulting in inconsistent quality of cut vegetables and inability to ensure product consistency. In addition, direct contact between personnel and vegetables during the harvesting process can cause food contamination and affect product safety. Furthermore, improper manual separation can damage the planting baskets or vegetables, increasing the cost of replacing consumables and causing product loss, further restricting the improvement of production efficiency.

[0005] Therefore, in view of the above problems, the present application provides an automatic harvesting device for water-cultivated vegetables to make up for and improve the shortcomings of the prior art. SUMMARY

[0006] To solve the above technical problems, the present application provides an automatic harvesting device for water-cultivated vegetables to solve the technical problems raised in the background art.

[0007] To achieve the above object, the technical scheme adopted by the present application is: an automatic harvesting device for hydroponic vegetables, which is used for cutting and separating hydroponic vegetables in planting baskets and collecting them respectively, and comprises a rack and a conveying device and a cutting device installed on the rack, the conveying device is provided with a synchronous belt with a protruding plate, and the planting baskets are placed on the synchronous belt at intervals; the cutting device is equipped with cutting blades on the side of the synchronous belt, and when working, the synchronous belt pushes the planting baskets to the cutting blades through the side wall protruding plate, and the hydroponic vegetables are separated from the planting baskets by rotating the cutting blades, so that they fall into the corresponding collecting baskets respectively.

[0008] Further, the conveying device comprises ball bearings and support sheet metal, the support sheet metal is fixedly installed on the top plane of the rack, the ball bearings are uniformly embedded in the grooves on the upper surface of the support sheet metal, and the top of the ball bearings protrudes from the surface of the support sheet metal for supporting the planting baskets.

[0009] Further, the support sheet metal is located at the junction of the conveying area and the cutting area, and has an inclined downward arc-shaped corner shape, and the inner wall at the corner position of the support sheet metal is fixedly connected with a side supporting bent plate, the surface of the side supporting bent plate is uniformly rotationally connected with silica gel sleeves, and the silica gel sleeves as a whole are densely distributed at the corner and sparsely distributed in a straight line.

[0010] Further, the surface of the rack is fixedly connected with a second fixed bearing, the inside of the second fixed bearing is provided with a second transmission shaft, the shaft end of the second transmission shaft is provided with a first driving wheel, the synchronous belt is wound on the gear teeth of the first driving wheel, and the second transmission shaft drives the first driving wheel to rotate synchronously when rotating, thereby driving the synchronous belt to transmit.

[0011] Further, the side wall of the rack is provided with a first fixed bearing, the inside of the first fixed bearing is provided with a first transmission shaft, and the first transmission shaft and the pulley of the second transmission shaft are provided with a first flat belt, and the first transmission shaft drives the second transmission shaft to rotate synchronously through the first flat belt when rotating.

[0012] Further, the conveying device comprises a bevel gear and a chain wheel one, the bevel gear connects the first transmission shaft and the chain wheel one to transmit power, the chain wheel one is connected with a second motor through a chain, and the connection between the conveying device and the cutting device is provided with a first guide rod for ensuring that the planting baskets are positioned between them, the two sides of the rack are provided with a second guide rod for adjusting the two racks to clamp the planting baskets, and the side wall of the rack in the cutting area is fixedly connected with a baffle, and the height of the baffle is higher than the top of the synchronous belt in the cutting area.

[0013] Further, the top of the rack is fixedly connected with a limiting device, the limiting device is located directly above the synchronous belt, and the bottom of the limiting device is attached to the top of the planting basket body, so as to limit the planting basket body from shaking up and down with the cutting blade when the water-grown vegetables are cut, a protective cover is arranged outside the cutting blade, so as to prevent the operator from accidentally touching the cutting blade, and a blade fixing flange is arranged on the surface of the cutting blade, the blade fixing flange is arranged on the motor I, and the motor I is used to provide power for the rotation of the cutting blade.

[0014] Further, the bottom of the rack is provided with a motor II, a sprocket III is arranged on the output shaft of the motor II, and the teeth of the sprocket III, the sprocket I and the sprocket II are provided with a chain, so that the motor II drives the chain through the sprocket III to synchronously provide power for the conveying area and the cutting area, the sprocket II is arranged on the side wall of the rack of the cutting area, a second driving wheel is arranged above the sprocket II, the sprocket II is connected with the sprocket III through the chain, and power is transmitted to the second driving wheel through the sprocket II, so that the synchronous belt of the cutting area is driven to rotate.

[0015] Further, the double-headed bolt is threadedly connected with the rack at both ends, the guide rod III is parallel to the double-headed bolt and is slidably connected with the rack shell, the double-headed bolt can adjust the distance between the two rack shells, and the guide rod III limits the deviation direction of the rack shell and shares the radial force of the double-headed bolt.

[0016] Further, a planting basket collecting basket is arranged below the end of the synchronous belt of the cutting device area, so as to collect the planting basket body after cutting, and a water-grown vegetable collecting basket is arranged below the cutting position of the cutting blade, so as to collect the water-grown vegetables after cutting.

[0017] Compared with the prior art, the device has the following advantages: (1) the planting basket body adopts a linear, turning, and curved downward composite conveying mode, which has multiple advantages: the linear conveying stage relies on the linkage of the synchronous belt and the sprocket and the flat belt, so that the continuous and stable conveying of the planting basket body can be realized, and the batch operation demand of large-scale planting can be met; the arc turning design replaces the traditional right-angle turning structure, which not only avoids the risk of jamming and deviation of the planting basket body at the corner, but also greatly compresses the linear space occupied by the equipment, and is more suitable for planting scenes with limited space; the curved downward conveying mode does not need additional power driving, and can naturally guide the planting basket body to transition to an inclined state, which simplifies the power structure of the device, optimizes the posture of the water-grown vegetables in advance for subsequent precise cutting, and realizes seamless connection between the conveying area and the cutting area, avoiding the problem of falling or misplacement of the planting basket body when switching between areas.

[0018] The inclined cutting design of the cutting blade is matched with the inclined conveying height of the planting basket body, and the core advantages are as follows: first, the connection target of the hydroponic vegetables and the planting basket body in the inclined state is naturally exposed to the blade direction, so that the cutting path is more accurate; second, the cutting angle is consistent with the inclined conveying posture of the hydroponic vegetables, the cutting force extends along the direction of the vegetable path, which can reduce the squeezing and tearing problems caused by traditional vertical cutting, make the cut more flat, and reduce the loss of vegetable juice; third, the hydroponic vegetables after inclined cutting can naturally slide into the collection basket along the conveying slope, which saves the additional flow guide components and reduces the collision damage of the vegetables during falling, better maintains the product appearance, and the inclined layout of the cutting blade is completely matched with the conveying direction, which does not interfere with the movement of the planting basket body, and both the operation efficiency and the operation safety are considered.

[0019] Compared with the prior art, the integrated frame design of conveying and cutting makes the planting basket body naturally connected in the whole process from straight conveying, arc bending to curved downward inclination, without additional posture adjusting mechanism, relying on a single power source to realize the synchronous operation of the conveying and cutting system, which simplifies the device structure, reduces the fault points, makes the operation process from conveying to cutting coherent and non-redundant, greatly improves the harvesting efficiency per unit time, and reduces the maintenance difficulty and use cost of the equipment.

[0020] (2) The side supporting bent plate at the corner of the supporting sheet metal and the silica gel sleeve shaft design further optimizes the conveying stability: the arc corner area is the stress concentration point of the planting basket body conveying, and the silica gel sleeve shaft is densely distributed here, which can increase the support point of the planting basket body, effectively prevent the inclination and jam of the planting basket body due to the change of angle; the sleeve shaft of the straight section is scattered, which is matched with the low stress requirement of straight conveying and avoids component redundancy, reduces the overall weight while reducing the cost of the device; the rolling connection form of the silica gel sleeve shaft greatly reduces the conveying friction resistance, and the flexible characteristics of the silica gel material can clamp different sizes of planting baskets and avoid scratching damage of the planting basket body by hard components, improving the reuse rate of the planting basket.

[0021] In the actual conveying process, when the planting basket body enters the arc bending stage, the outer side is affected by the centrifugal force, and the stress load is significantly higher than that of the straight conveying section. The side supporting bent plate as the outer auxiliary supporting structure of this area can disperse the concentrated load at the bending corner, avoid the inclination of the planting basket body due to uneven stress on one side, and ensure that the vegetable path is always within the preset cutting track range, eliminating the risk of cutting deviation caused by track deviation from the structure level.

[0022] And the centrifugal force generated in the process of planting basket body bending, will guide the vegetable plants appear natural outward opening trend, then with the inclined downward conveying mode, can make the connection part of the vegetable stem and the planting basket body, initiative to separate from the wrapping of the blade, at the same time, let the target and the cutting blade path arranged inclined form natural space alignment relationship, this linkage effect, perfect the cutting positioning difficult problem caused by the wrapping of the blade of the plant in the straight line conveying stage, without additional positioning mechanism can realize the accurate exposure of cutting target, lay the foundation for the accuracy of subsequent inclined cutting.

[0023] The silicone sleeve shaft can enhance the adhesion with the outer wall of the planting basket by relying on its flexible characteristics and non-slip texture, even if water accumulates on the bottom of the basket, it can also maintain enough static friction to prevent the planting basket from slipping and displacing during transmission, ensuring the stability and continuity of the conveying process.

[0024] (3) The device has strong adaptability to complex working conditions in actual operation, greatly reducing the cost of manual intervention. For the common problem of planting basket size difference in planting, the guide rod two on both sides of the rack can flexibly adjust the spacing between the support sheet metals, without the need to replace parts to clamp baskets of different widths. At the same time, the limiters in the cutting area can automatically fit the top of the planting basket, without the need for manual calibration to stabilize the basket. Even beginners can quickly master it, effectively solving the problem of high skill requirements for operators in traditional equipment.

[0025] The safety protection and collection design of the device fully meets the actual needs of agricultural production, taking into account safety and efficiency. The protective cover outside the cutting blade can fully isolate the rotating parts to prevent operators from being injured by accidental contact, in line with the safety specifications for field work. The baffle in the cutting area can block the planting basket from deviating during inclined conveying, preventing cutting failures caused by position deviation. The cut vegetables naturally slide into the hydroponic vegetable collection basket along the inclined slope, and the planting basket falls into the special collection basket at the end of the synchronous belt, achieving automatic separation and collection of the two, without the need for manual sorting, greatly reducing the labor intensity of bending and picking.

[0026] The overall structural design of the device reduces the actual operation and maintenance cost: the chain wheel, synchronous belt and other core components are general agricultural machinery parts, easy to repair and replace; motor two as a single power source, synchronously driving the conveying and cutting system, reducing the fault points, the planting personnel can operate after simple training, without the need for professional technical personnel to maintain; At the same time, the device can be compatible with multiple hydroponic vegetables such as lettuce and spinach, without the need to replace parts to adjust and adapt, which can greatly improve the utilization rate of equipment and reduce long-term operating costs in actual large-scale planting. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a front view of the structure of the present application.

[0028] Figure 2 It is a top view schematic diagram of the application.

[0029] Figure 3 It is a side view schematic diagram of the application.

[0030] Figure 4 It is an axial perspective schematic diagram of the application.

[0031] Figure 5 It is a front perspective schematic diagram of the application in the state of transporting the planting basket.

[0032] Figure 6 It is an exploded view of the application showing the position relationship between the supporting sheet metal and the side supporting bent plate.

[0033] Figure 7 It is a side perspective schematic diagram of the application in the state of transporting the planting basket.

[0034] Figure 8 It is a front perspective schematic diagram of the application in the state of cutting the planting basket.

[0035] Figure 9 It is a rear perspective schematic diagram of the application in the state of cutting the planting basket.

[0036] Figure 10 It is a rear perspective schematic diagram of the application.

[0037] In the figure, 1 is the planting basket body; 2 is the ball bearing; 3 is the supporting sheet metal; 311 is the side supporting bent plate; 312 is the silica gel sleeve shaft; 4 is the first driving wheel; 5 is the synchronous belt; 6 is the transmission shaft one; 7 is the flat belt one; 8 is the fixed bearing one; 9 is the bevel gear; 10 is the chain wheel one; 11 is the guide rod one; 12 is the fixed bearing two; 13 is the transmission shaft two; 14 is the guide rod two; 15 is the baffle; 16 is the position limiter; 17 is the chain wheel two; 18 is the second driving wheel; 19 is the protective cover; 20 is the cutting blade; 21 is the blade fixing flange; 22 is the motor one; 23 is the double-end bolt; 24 is the guide rod three; 25 is the chain; 26 is the chain wheel three; 27 is the motor two; 28 is the planting basket collecting basket; 29 is the water-cultivated vegetable collecting basket; and 30 is the rack. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. It should be noted that the transmission device corresponds to specific components: the ball bearing 2, the support sheet metal 3, the first driving wheel 4, the synchronous belt 5, the fixed bearing one 8, the transmission shaft one 6, the flat belt one 7, the bevel gear 9, the sprocket one 10, the guide rod one 11, the fixed bearing two 12, the transmission shaft two 13, and the guide rod two 14.

[0039] Component connection and functional association: the ball bearing 2 embedded on the support sheet metal 3 provides support for the planting basket body 1, the first driving wheel 4 drives the synchronous belt 5 around to transmit the planting basket body 1, the transmission shaft one 6 is provided with the fixed bearing one 8 and transmits power through the flat belt one 7 and the transmission shaft two 13, the bevel gear 9 on the transmission shaft one 6 is engaged with the matching gear of the sprocket one 10, the sprocket one 10 is connected with the chain 25 to access the power source, the protruding plate on the synchronous belt 5 pushes the planting basket body 1, the guide rod one 11 connects the transmission and cutting areas, the guide rod two 14 adjusts the distance between the two support sheet metals 3 to clamp the planting basket body 1, and the stable transmission of the planting basket is realized.

[0040] Specific components of the cutting device: the stopper 16, the sprocket two 17, the second driving wheel 18, the protective cover 19, the cutting blade 20, the blade fixing flange 21, the motor one 22, the double-headed bolt 23, the guide rod three 24, the cutting area transmission shaft and the corresponding fixed bearing.

[0041] Component connection and functional association: the sprocket two 17 is connected with the chain 25 to access the power source, the second driving wheel 18 on the shaft drives the synchronous belt 5 in the cutting area to operate, the stopper 16 fixed on the top of the rack 30 presses the planting basket body 1 to prevent shaking during cutting, the motor one 22 fixed in the cutting area shell drives the cutting blade 20 to rotate through the blade fixing flange 21 to realize cutting, the protective cover 19 outside the cutting blade 20 avoids accidental contact by personnel, the double-headed bolt 23 horizontally penetrating the cutting area shells on both sides adjusts the distance between the shells, the guide rod three 24 parallel to the double-headed bolt 23 assists in fixing and shares the radial force, and the precise cutting of the hydroponic vegetables is completed.

[0042] Embodiment one, please refer to Figure 1 Figure 4 , Figure 8 ​As shown, an automatic harvesting device for hydroponic vegetables is used for cutting and separating hydroponic vegetables in the planting basket 1 and collecting them respectively, which comprises a rack 30 and a conveying device and a cutting device installed on the rack 30. The conveying device is provided with a synchronous belt 5 with a protruding plate, and the planting basket 1 is placed on the synchronous belt 5 at intervals. The cutting device is equipped with a cutting blade 20 on the side of the synchronous belt 5. During operation, the synchronous belt 5 pushes the planting basket 1 to the cutting blade 20 through the side wall protruding plate, and the hydroponic vegetables are separated from the planting basket 1 by rotating the cutting blade 20, so that they fall into the corresponding collection basket.

[0043] Please refer to Figure 2 - Figure 7 As shown, the conveying device comprises a ball bearing 2 and a support sheet metal 3. The support sheet metal 3 is fixedly installed on the top plane of the rack 30, and the ball bearing 2 is uniformly embedded in the upper surface groove of the support sheet metal 3. The top of the ball bearing 2 protrudes from the surface of the support sheet metal 3, which is used to support the planting basket 1. The surface of the rack 30 is fixedly connected with a fixed bearing two 12. The inside of the fixed bearing two 12 is provided with a transmission shaft two 13. The shaft end of the transmission shaft two 13 is sleeved with a first driving wheel 4. The synchronous belt 5 is wound on the gear teeth of the first driving wheel 4. When the transmission shaft two 13 rotates, it drives the first driving wheel 4 to rotate synchronously, thereby driving the synchronous belt 5 to transmit. The side wall of the rack 30 is provided with a fixed bearing one 8. The inside of the fixed bearing one 8 is provided with a transmission shaft one 6. The transmission shaft one 6 and the belt wheel of the transmission shaft two 13 are wound with a flat belt one 7. When the transmission shaft one 6 rotates, it drives the transmission shaft two 13 to rotate synchronously through the flat belt one 7. The conveying device comprises a bevel gear 9 and a chain wheel one 10. The bevel gear 9 connects the transmission shaft one 6 and the chain wheel one 10 to transmit power. The chain wheel one 10 is connected with a motor two 27 through a chain 25. The connection between the conveying device and the cutting device is provided with a guide rod one 11, which is used to ensure that the planting basket 1 is connected in place between the two. The two sides of the rack 30 are provided with a guide rod two 14, which is used to adjust the two sides of the rack 30 to make the support sheet metal 3 clamp the planting basket 1. The side wall of the cutting area rack 30 is fixedly connected with a baffle 15, and the height of the baffle 15 is higher than the top of the synchronous belt 5 in the cutting area.

[0044] It should be noted that the support sheet metal 3 is located at the junction of the conveying area and the cutting area, and has an inclined downward arc-shaped corner shape. The inner wall of the corner position of the support sheet metal 3 is fixedly connected with a side supporting bent plate 311. The surface of the side supporting bent plate 311 is uniformly rotatably connected with a silica gel sleeve shaft 312. The silica gel sleeve shaft 312 is designed to be densely distributed at the corner and sparsely distributed in a straight line.

[0045] Please refer to Figure 1 - Figure 4 and Figure 8 - Figure 10As shown, the top of the rack 30 is fixedly connected with a limit stop 16, which is located directly above the synchronous belt 5 and the bottom of which is attached to the top of the planting basket body 1, so as to limit the planting basket body 1 from shaking up and down with the cutting blade 20 when cutting the hydroponic vegetables. A protective cover 19 is arranged outside the cutting blade 20 to prevent the operator from accidentally touching the cutting blade 20. The surface of the cutting blade 20 is provided with a blade fixing flange 21, which is installed on a motor 22, and the motor 22 is used to provide power for the rotation of the cutting blade 20.

[0046] It should be noted that the bottom of the rack 30 is provided with a motor 27, and a sprocket 26 is sleeved on the output shaft of the motor 27. The sprocket 26, the sprocket 10 and the sprocket 17 are provided with a chain 25. When the motor 27 operates, the chain 25 is driven by the sprocket 26 to provide power for the transmission area and the cutting area. The side wall of the rack 30 of the cutting area is provided with a sprocket 17, and a second driving wheel 18 is installed above the sprocket 17. The sprocket 17 is connected with the sprocket 26 through the chain 25, and the power is transmitted to the second driving wheel 18 through the sprocket 17 to drive the synchronous belt 5 of the cutting area to operate. The double-headed bolt 23 and the guide rod 24 are horizontally arranged on the side wall of the rack 30 of the cutting area. The two ends of the double-headed bolt 23 are threadedly connected with the rack 30. The guide rod 24 is parallel to the double-headed bolt 23 and is slidably connected with the rack 30. The double-headed bolt 23 can adjust the distance between the two rack 30 housings. The guide rod 24 limits the displacement direction of the rack 30 housing and shares the radial force of the double-headed bolt 23. The synchronous belt 5 of the cutting device area is provided with a planting basket collecting basket 28 below the end thereof, which is used to collect the cut planting basket body 1. The cutting position of the cutting blade 20 is correspondingly provided with a hydroponic vegetable collecting basket 29 below, which is used to collect the cut hydroponic vegetables.

[0047] Specifically, first, the planting basket body 1 carrying the hydroponic vegetables is placed between the convex plates of the transmission area synchronous belt 5 at intervals. At this time, the bottom of the planting basket body 1 is attached to the top of the embedded ball bearing 2 in the groove on the upper surface of the support sheet metal 3. The ball bearing 2 protrudes from the surface of the support sheet metal 3, which can stably support the planting basket body 1 and greatly reduce the resistance during subsequent movement through rolling friction, thereby improving the transmission smoothness. The support sheet metal 3 is pre-adjusted in distance by the guide rod 14 on both sides of the rack 30, so that the two support sheet metals 3 can just clamp the planting basket body 1, which can adapt to planting basket bodies 1 of different width specifications and enhance the versatility of the device.

[0048] The output shaft of the starting motor 27 drives the chain wheel 26, and since the chain 25 is arranged on the sprocket teeth of the chain wheel 26, the chain wheel 10 and the chain wheel 17, the chain wheel 10 rotates synchronously with the chain 25. The chain wheel 10 is engaged with the bevel gear 9 fixed on the shaft segment of the transmission shaft 6, and the power is transmitted to the transmission shaft 6 through the bevel gear 9. The transmission shaft 6 is arranged in the fixed bearing 8 fixed on the side wall of the frame 30, and the fixed bearing 8 can limit the radial deviation of the transmission shaft 6 to ensure its stable rotation. Then the transmission shaft 6 drives the transmission shaft 13 through the flat belt 7, and the transmission shaft 13 is arranged in the fixed bearing 12 fixed on the surface of the frame 30, which also stabilizes the transmission shaft 13. The first driving wheel 4 arranged on the shaft end of the transmission shaft 13 rotates with the transmission shaft 13, thereby driving the synchronous belt 5 to rotate. The convex plate on the synchronous belt 5 pushes the planting basket body 1 to move to the cutting area.

[0049] As shown in Figure 6 When the planting basket body 1 is conveyed to the arc-shaped corner area of the support plate 3 inclined downward, the surface of the side supporting bent plate 311 fixed on the inner wall of the corner of the support plate 3 is in rolling contact with the silica gel sleeve shaft 312 densely distributed on the side wall of the planting basket body 1. The design of the silica gel sleeve shaft 312, which is dense at the corner and sparse in a straight line, increases the support points in the stress concentration area of the corner to avoid the inclination of the planting basket body 1, and at the same time, the silica gel material can buffer the contact force to prevent scratching the planting basket body 1. At the same time, the guide rod 11 at the junction of the conveying area and the cutting area guides the planting basket body 1 to ensure its accurate entry into the cutting area and avoid position deviation affecting the subsequent cutting.

[0050] At the same time of conveying, the chain wheel 17 rotates synchronously with the chain 25, and the power is transmitted to the second driving wheel 18 above, so that the synchronous belt 5 in the cutting area and the synchronous belt 5 in the conveying area keep the same operation rhythm. When the planting basket body 1 enters the cutting area, the bottom of the limiter 16 fixed on the top of the frame 30 tightly contacts the top of the planting basket body 1, which can effectively limit the up and down shaking of the planting basket body 1 caused by the rotation of the cutting blade 20, and ensure the accuracy of the cutting position.

[0051] As shown in Figure 4 , Figure 8 and Figure 9As shown, after the planting basket 1 moves to the cutting area from the conveying area, the support plate 3 with the arc-shaped corner is guided to an inclined conveying state, and the cutting blade 20, the motor 22, the blade fixing flange 21 and other components in the cutting area are all designed to be inclined to match the inclined conveying angle. Then the motor 22 is started, and the output shaft drives the inclined cutting blade 20 to rotate at high speed through the blade fixing flange 21, so as to cut the hydroponic vegetables in the inclined conveying planting basket 1. The blade fixing flange 21 can enhance the connection stability of the cutting blade 20 and the output shaft of the motor 22 in the inclined state, so as to avoid the blade from loosening due to the angle stress during high-speed rotation. The protective cover 19 outside the cutting blade 20 is also arranged in an inclined manner, which can isolate the rotating blade from the operator and eliminate the risk of accidental contact, and does not interfere with the inclined conveying planting basket 1. At the same time, the height of the baffle 15 on the side wall of the cutting area rack 30 is higher than the top of the inclined synchronous belt 5, which can block the planting basket 1 from exceeding the preset cutting position during inclined conveying. In addition, the double-headed bolt 23 and the guide rod three 24 horizontally penetrating the side wall of the cutting area rack 30 are also arranged in an inclined manner. The double-headed bolt 23 adjusts the distance between the two housings by thread cooperation with the housing of the rack 30, and the guide rod three 24 limits the housing deviation direction and shares the radial force, so as to ensure the structural stability of the cutting device in the inclined state, and meet the cutting demand of hydroponic vegetables with different diameters.

[0052] The matching design of inclined conveying and inclined cutting can ensure that the connection target point of the hydroponic vegetables and the planting basket 1, i.e. the cutting part, naturally stretches towards the cutting blade 20 in the inclined conveying state, so as to avoid the leaf blocking and make the cutting path more accurate. The angle of the inclined cutting matches the inclined growth posture of the hydroponic vegetables, the cutting force acts along the inclined direction of the vegetable diameter, reduces the extrusion damage during cutting, makes the incision more flat, and reduces the loss of vegetable juice. The hydroponic vegetables after cutting can naturally slide into the lower hydroponic vegetable collecting basket 29 along the direction of inclined conveying, reduce the collision during falling, and better maintain the appearance of the vegetables.

[0053] After cutting, the hydroponic vegetables fall into the corresponding hydroponic vegetable collecting basket 29 below the cutting position under the action of gravity and the cutting force of the cutting blade 20, and the planting basket 1 continues to run with the synchronous belt 5 of the cutting area. When it moves to the end of the synchronous belt 5, it falls into the lower planting basket collecting basket 28 under the action of gravity.

[0054] During the whole process, the motor 27 continuously operates to maintain the synchronous transmission of the chain 25, the chain wheel set and the synchronous belt 5, so as to realize the continuous conveying, cutting and collecting of the planting basket 1, greatly improve the work efficiency per unit time, and reduce the manual intervention while ensuring the classification and collection accuracy of the hydroponic vegetables and the planting basket 1.

[0055] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An automatic harvesting device for hydroponic vegetables, which is used for cutting and separating hydroponic vegetables in a planting basket (1) and collecting them respectively, comprising a rack (30) and a conveying device and a cutting device installed on the rack (30), characterized in that: The conveying device is provided with a synchronous belt (5) with a convex plate, and the planting basket (1) is placed on the synchronous belt (5) at intervals; the cutting device is assembled with a cutting blade (20) on the side of the synchronous belt (5), and the conveying device comprises ball bearings (2) and a supporting sheet metal (3), the supporting sheet metal (3) is fixedly installed on the top plane of the rack (30), the ball bearings (2) are uniformly embedded in the grooves on the upper surface of the supporting sheet metal (3), and the top of the ball bearings (2) protrudes from the surface of the supporting sheet metal (3) and is used for supporting the planting basket (1). The supporting sheet metal (3) is located at the junction position of the conveying area and the cutting area, has an inclined downward arc-shaped corner shape, and the inner wall of the corner position of the supporting sheet metal (3) is fixedly connected with a side supporting bent plate (311), the surface of the side supporting bent plate (311) is uniformly rotationally connected with silica gel sleeve shafts (312), and the silica gel sleeve shafts (312) are designed to be densely distributed at the corner and sparsely distributed in a straight line. In the device, the planting basket (1) adopts a linear, bending and downward bending composite conveying mode, in working, the downward bending conveying mode naturally guides the planting basket (1) to transition to an inclined state, the inclined cutting design of the cutting blade (20) is matched with the inclined conveying height of the planting basket (1); the inclined downward conveying mode can make the connection part of the vegetable stem and the planting basket (1) actively separate from the wrapping and shielding of the blade, realize the accurate exposure of the cutting target, the synchronous belt (5) pushes the planting basket (1) to the cutting blade (20) through the side wall convex plate, and the hydroponic vegetables and the planting basket (1) are separated through the rotation of the cutting blade (20), so that they fall into the corresponding collection baskets, wherein the cut vegetables naturally slide into the hydroponic vegetable collection basket (29) along the inclined slope, and the planting basket falls into the special collection basket at the end of the synchronous belt (5).

2. The automatic harvesting device for hydroponic vegetables according to claim 1, characterized in that: The surface of the rack (30) is fixedly connected with a fixed bearing two (12), the inside of the fixed bearing two (12) is provided with a transmission shaft two (13), the shaft end of the transmission shaft two (13) is provided with a first driving wheel (4), and the synchronous belt (5) is wound on the gear teeth of the first driving wheel (4); when the transmission shaft two (13) rotates, the first driving wheel (4) rotates synchronously, and then drives the synchronous belt (5) to transmit.

3. The automatic harvesting device for hydroponic vegetables according to claim 1, characterized in that: The side wall of the rack (30) is provided with a fixed bearing one (8), the inside of the fixed bearing one (8) is provided with a transmission shaft one (6), the transmission shaft one (6) and the transmission shaft two (13) are provided with a flat belt one (7) on the pulleys, and when the transmission shaft one (6) rotates, the transmission shaft two (13) rotates synchronously through the flat belt one (7).

4. The automatic harvesting device for hydroponic vegetables according to claim 3, characterized in that: The transmission device includes a bevel gear (9) and a chain wheel (10), the bevel gear (9) is connected with the transmission shaft (6) and the chain wheel (10) to transmit power, the chain wheel (10) is connected with the motor (27) through the chain (25), the connection between the transmission device and the cutting device is provided with the guide rod (11), which is used for ensuring that the planting basket (1) is connected in place between the two, the rack (30) is provided with the guide rod (14) on both sides, which is used for adjusting the rack (30) on both sides to make the support plate (3) clamp the planting basket (1), the side wall of the rack (30) in the cutting area is fixedly connected with the baffle (15), and the height of the baffle (15) is higher than the top of the synchronous belt (5).

5. The automatic harvesting device for hydroponic vegetables according to claim 1, characterized in that: The top of the rack (30) is fixedly connected with the limit stop (16), the limit stop (16) is located directly above the synchronous belt (5), and the bottom of the limit stop (16) is attached to the top of the planting basket (1), so that the planting basket (1) is limited from shaking up and down with the cutting blade (20) when the water-grown vegetables are cut, the cutting blade (20) is covered with the protective cover (19) on the outer side, so as to prevent the operator from accidentally touching the cutting blade (20), and the surface of the cutting blade (20) is provided with the blade fixing flange (21), the blade fixing flange (21) is installed on the motor (22), and the motor (22) is used for providing power for the rotation of the cutting blade (20).

6. The automatic harvesting device for hydroponic vegetables according to claim 1, characterized in that: The bottom of the rack (30) is provided with the motor (27), a chain wheel (26) is sleeved on the output shaft of the motor (27), the chain wheel (26), the chain wheel (10) and the chain wheel (17) are provided with the chain (25) on the gear teeth, the motor (27) drives the chain (25) to rotate through the chain wheel (26) when the motor (27) operates, and power is provided for the transmission area and the cutting area, the side wall of the rack (30) in the cutting area is provided with the chain wheel (17), the second driving wheel (18) is installed above the chain wheel (17), the chain wheel (17) is connected with the chain wheel (26) through the chain (25), power is transmitted to the second driving wheel (18) through the chain wheel (17), and the synchronous belt (5) in the cutting area is driven to rotate.

7. The automatic harvesting device for hydroponic vegetables according to claim 6, characterized in that: The rack (30) in the cutting area is provided with the double-headed bolt (23) and the guide rod (24) which are horizontally penetrated, the double-headed bolt (23) is threadedly connected with the rack (30) at both ends, the guide rod (24) is parallel to the double-headed bolt (23) and is slidably connected with the rack (30), the double-headed bolt (23) can adjust the distance between the two rack (30) shells, and the guide rod (24) limits the deviation direction of the rack (30) shell and shares the radial force of the double-headed bolt (23).

8. The automatic harvesting device for hydroponic vegetables according to claim 1, characterized in that: The synchronous belt (5) in the cutting device area is provided with the planting basket collecting basket (28) below the end, which is used for collecting the planting basket (1) after cutting, and the water-grown vegetable collecting basket (29) is correspondingly arranged below the cutting position of the cutting blade (20), which is used for collecting the water-grown vegetables after cutting.

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