Combined harvester for flower-ball vegetables and control method of combined harvester

Abstract

The invention provides a flower ball type vegetable combine harvester and a control method thereof. The flower ball type vegetable combine harvester comprises a leaf supporting mechanism, a cutting device, a clamping and conveying device, a double-layer conveying and orderly laying device and a control device. The double-layer conveying and orderly laying device comprises a first laying unit, a second laying unit, a first conveying mechanism and a second conveying mechanism. The first laying unit and the second laying unit are arranged in parallel, and the length of the first laying unit is smaller than that of the second laying unit; the first conveying mechanism and the second conveying mechanism are arranged in parallel up and down; a plurality of conveying areas are arranged on a conveying belt of the first conveying mechanism; the second conveying mechanism is used for placing a collecting box; the first laying unit and the second laying unit sequentially lay the ball vegetables on the same conveying area of the first conveying mechanism, the second conveying mechanism conveys the collecting box forwards, and the falling ball vegetables are collected. Layered transportation and orderly laying of the flower ball vegetables and the collecting boxes are achieved, the harvesting efficiency is improved, and damage to the flower ball vegetables is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent agricultural machinery, and in particular relates to a bulb vegetable combine harvester and a control method thereof. Background Art

[0002] As the market demand for flower-head vegetables continues to grow, the planting area of ​​flower-head vegetables is also expanding. However, after harvest, flower-head vegetables are often randomly stacked, which can easily cause squeezing damage, affect their commercial value and shelf life, and make it difficult to meet the market demand for high-quality flower-head vegetables. At present, there are relatively few studies on the orderly processing of flower-head vegetables after harvest. Although some existing conveying devices can achieve simple conveying functions, it is difficult to achieve orderly laying of flower-head vegetables. For example, some single-layer conveyor belts easily cause flower-head vegetables to stack and cause damage; some simple sorting devices cannot achieve layered placement of flower-head vegetables and collection frames, which increases the difficulty of subsequent processing. The existing laying method is inefficient, difficult to meet the needs of large-scale harvesting, and increases labor costs. There is an urgent need for a device and method that can achieve double-layer orderly laying of flower-head vegetables to improve harvesting efficiency, reduce labor intensity, and improve the quality of flower-head vegetables. Chinese patent CN204392866U discloses a leafy vegetable harvester. While this solution achieves orderly harvesting of leafy vegetables to some extent, it also results in disordered placement of the vegetables into the collection bin, causing them to land in the same spot and failing to fill the bin. Frequent bin replacement is required, resulting in low efficiency and poor collection results. Furthermore, there is currently no research on the orderly placement of flower-shaped vegetables. Summary of the Invention

[0003] In response to the above technical problems, the present invention provides a combined harvester for head vegetables and a control method thereof. The present invention realizes the layered transportation and orderly placement of head vegetables and collection boxes, significantly improves the harvesting efficiency, reduces the squeezing between the head vegetables, and thus reduces the damage to the head vegetables.

[0004] Note that the inclusion of these objectives does not preclude the existence of other objectives. One embodiment of the present invention does not necessarily achieve all of the above objectives. Objectives other than the above objectives may be extracted from the description of the specification, drawings, and claims.

[0005] The present invention achieves the above technical objectives through the following technical means.

[0006] A bulb vegetable combine harvester comprises a leaf-supporting mechanism, a cutting device, a clamping and conveying device, a double-layer conveying and orderly laying device, and a control device;

[0007] The leaf supporting mechanism is arranged in front of the clamping and conveying device, the cutting device is located at the front bottom of the clamping and conveying device, and the double-layer conveying and orderly laying device is arranged at the rear of the clamping and conveying device;

[0008] The double-layer conveying orderly laying device includes a first laying unit, a second laying unit, a first conveying mechanism and a second conveying mechanism; the first laying unit and the second laying unit are arranged in parallel and located above the first conveying mechanism, and the length of the first laying unit is smaller than that of the second laying unit; the first conveying mechanism and the second conveying mechanism are arranged in parallel up and down, and the second conveying mechanism is located below the first conveying mechanism; the laying directions of the first laying unit and the second laying unit are perpendicular to the conveying directions of the first conveying mechanism and the second conveying mechanism; a plurality of parallel conveying partitions are provided on the conveyor belt of the first conveying mechanism; the plurality of conveying partitions divide the conveyor belt into a plurality of conveying areas; the second conveying mechanism is used to place the collection box;

[0009] The first laying unit and the second laying unit are connected to the first driving mechanism; the first conveying mechanism is connected to the second driving mechanism; the second conveying mechanism is connected to the third driving mechanism;

[0010] The control device is connected to the first drive mechanism, the second drive mechanism and the third drive mechanism respectively; the control device controls the first drive mechanism and the second drive mechanism so that the first laying unit and the second laying unit lay the flower head vegetables successively into the same conveying area of ​​the first conveying mechanism, and the control device controls the third drive mechanism so that the second conveying mechanism conveys the collection box forward to collect the flower head vegetables fallen from the first conveying mechanism.

[0011] In the above scheme, the first laying unit and the second laying unit both include a grooved turning belt; the grooved turning belt is provided with a plurality of turning partitions to divide the grooved turning belt into a plurality of turning areas, and the clamping and conveying device conveys the flower bulb vegetables to the turning areas of the grooved turning belt in sequence.

[0012] Furthermore, the first driving mechanism includes a first driving motor, a gearbox and a transmission mechanism;

[0013] The output shaft of the first drive motor is connected to the gearbox, and the gearbox is connected to the clamping and conveying device to control the conveying speed of the clamping and conveying device; the grooved flip belts of the first laying unit and the second laying unit share a drive shaft, and the gearbox is also connected to the drive shaft of the grooved flip belt through a transmission mechanism.

[0014] Furthermore, the two sides of the flip zone include two grooves respectively.

[0015] Furthermore, the flip partition is made of a flexible material, preferably PVC.

[0016] Furthermore, baffles are respectively provided on both sides of the front end of the second laying unit.

[0017] In the above solution, a plurality of parallel arranged collecting partitions are provided in the collecting box; the plurality of collecting partitions divide the collecting box into a plurality of collecting areas.

[0018] Furthermore, it also includes a counter and an alarm; the counter is installed at the end of the first conveying mechanism, and the counter and the alarm are respectively connected to the control device; the counter is used to calculate the number of flower head vegetables and transmit it to the control device; when the number of flower head vegetables reaches a preset value, the control device controls the alarm to sound an alarm.

[0019] In the above solution, the clamping and conveying device includes two flexible clamping and conveying units; each flexible clamping and conveying unit includes two relatively arranged flexible clamping conveyor belts; the flexible clamping and conveying units convey the flower bulb vegetables to the first laying unit and the second laying unit respectively.

[0020] A control method for the bulb vegetable combine harvester includes the following steps:

[0021] The leaf-supporting mechanism straightens the vegetable heads in the traveling direction to the middle position of the clamping and conveying front end of the clamping and conveying device, the cutting device cuts the stems of the vegetable heads, and the clamping and conveying device clamps the cut vegetable heads and conveys them to the first laying unit and the second laying unit respectively;

[0022] The control device controls the first drive mechanism and the second drive mechanism so that the first and second placing units successively place the vegetable heads on the same conveying area of ​​the first conveying mechanism. The control device controls the third drive mechanism so that the second conveying mechanism moves the collection box forward to collect the vegetable heads dropped from the first conveying mechanism.

[0023] The counter counts the number of the vegetable heads falling into the collection box and transmits the count to the control device; when the number of the vegetable heads reaches a preset value, the control device controls the alarm to sound an alarm.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention adopts staggered laying of the first laying unit and the second laying unit, and double-layer conveyor belts of the first conveying mechanism and the second conveying mechanism, which realizes the layered transportation and orderly laying of flower bulb vegetables and collection boxes, and significantly improves the harvesting efficiency.

[0026] 2. The first and second placement units of the present invention utilize grooved turning belts. Two grooves are located on either side of the turning zone to effectively clamp the side stems of the vegetable heads conveyed by the clamping and conveying device. The grooves on both sides secure the side stems during the turning process, and the central turning partition (wrapping the main diameter) ensures stable turning, preventing the vegetables from falling and minimizing losses.

[0027] 3. The present invention realizes the gentle laying of the vegetable heads by controlling the rotation speed and staggered laying of the first laying unit and the second laying unit, effectively reducing the squeezing and collision between the vegetable heads. The control device controls the speed of the first drive motor and the second drive motor so that the vegetable heads fall into the collection box in an orderly manner. At the same time, the third drive motor is controlled to make the collection box move forward intermittently, so that the vegetable heads are stacked in an orderly manner in the collection area, reducing the squeezing between the vegetable heads and thus reducing the damage to the vegetable heads.

[0028] 4. The counter of the present invention calculates the number of flower-head vegetables falling into the collection box and transmits it to the control device. When the number of flower-head vegetables reaches a preset value, the control device controls the alarm to sound an alarm, reminding the operator to unload the full collection box and collect it in the next collection box, thereby improving the laying efficiency and accuracy.

[0029] 5. The present invention arranges the bulb vegetables more compactly in the collection box through staggered laying, thereby improving space utilization.

[0030] Note that the description of these effects does not preclude the existence of other effects. One embodiment of the present invention does not necessarily have all of the above effects. Effects other than the above can be clearly seen and extracted from the description of the specification, drawings, claims, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main structure of a bulb vegetable combine harvester according to one embodiment of the present invention.

[0032] Figure 2 3 is a schematic structural diagram of a first laying unit and a second laying unit according to an embodiment of the present invention.

[0033] Figure 3 It is an axial schematic diagram of a first laying unit, a second laying unit and a first driving mechanism according to one embodiment of the present invention.

[0034] Figure 4 It is a side view schematic diagram of the first laying unit, the second laying unit and the first driving mechanism according to one embodiment of the present invention.

[0035] Figure 5 It is an axial schematic diagram of a first conveying mechanism and a second conveying mechanism according to one embodiment of the present invention.

[0036] Figure 6 It is a schematic structural diagram of a collection box according to one embodiment of the present invention.

[0037] In the figure: 1. Supporting blade mechanism; 2. Clamping and conveying device; 3. Double-layer conveying and orderly laying device; 301. First laying unit; 302. Second laying unit; 303. First conveying mechanism; 304. Second conveying mechanism; 305. Conveying partition; 306. Grooved turning belt; 307. Turning partition; 308. Gearbox; 309. Transmission mechanism; 310. Baffle; 311. Collection box; 312. Collection partition; 313. First drive motor; 314. Second drive motor; 315. Third drive motor; 316. Fourth drive motor. DETAILED DESCRIPTION

[0038] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "back", "left", "right", "up", "down", "axial", "radial", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] Figure 1-6 As shown, the flower bulb vegetable combine harvester includes a leaf supporting mechanism 1, a cutting device, a clamping and conveying device 2, a double-layer conveying and orderly laying device 3 and a control device;

[0042] The leaf supporting mechanism 1 is arranged in front of the clamping and conveying device 2, the cutting device is located at the front bottom of the clamping and conveying device 2, and the double-layer conveying and orderly laying device is arranged behind the clamping and conveying device 2;

[0043] The double-layer conveying orderly laying device 3 includes a first laying unit 301, a second laying unit 302, a first conveying mechanism 303 and a second conveying mechanism 304; the first laying unit 301 and the second laying unit 302 are arranged in parallel and located above the first conveying mechanism 303, and the length of the first laying unit 301 is smaller than the length of the second laying unit 302; the first conveying mechanism 303 and the second conveying mechanism 304 are arranged in parallel up and down, and the second conveying mechanism 304 is located below the first conveying mechanism 303; the laying direction of the first laying unit 301 and the second laying unit 302 is perpendicular to the conveying direction of the first conveying mechanism 303 and the second conveying mechanism 304; a plurality of parallel conveying partitions 305 are provided on the conveyor belt of the first conveying mechanism 303; the plurality of conveying partitions 305 divide the conveyor belt into a plurality of conveying areas; the second conveying mechanism 304 is used to place a collection box 311;

[0044] The first placement unit 301 and the second placement unit 302 are connected to the first driving mechanism; the first conveying mechanism 303 is connected to the second driving mechanism; the second conveying mechanism 304 is connected to the third driving mechanism;

[0045] The control device is connected to the first drive mechanism, the second drive mechanism and the third drive mechanism respectively; the control device controls the first drive mechanism and the second drive mechanism so that the first laying unit 301 and the second laying unit 302 lay the flower head vegetables successively on the same conveying area of ​​the first conveying mechanism 303, realizing staggered laying and reducing the squeezing between the flower head vegetables; the control device controls the third drive mechanism so that the second conveying mechanism 304 conveys the collection box 311 forward for collecting the flower head vegetables fallen from the first conveying mechanism 303.

[0046] The first laying unit 301 and the second laying unit 302 both include a grooved turning belt 306; the grooved turning belt 306 is provided with a plurality of turning partitions 307 to divide the grooved turning belt 306 into a plurality of turning zones, and the clamping and conveying device 2 conveys the flower bulb vegetables to the turning zones of the grooved turning belt in sequence.

[0047] like Figure 3As shown, the first driving mechanism includes a first driving motor 313, a gearbox 308 and a transmission mechanism 309; the output shaft of the first driving motor 313 is connected to the gearbox 308, and the gearbox 308 is connected to the clamping and conveying device 2 to control the conveying speed of the clamping and conveying device 2; the grooved flip belt 306 of the first laying unit 301 and the second laying unit 302 share a driving shaft, and the gearbox 308 is also connected to the driving shaft of the grooved flip belt 306 through the transmission mechanism 309.

[0048] The flipping zone includes two grooves on either side, effectively gripping the side stems of the vegetable heads conveyed by the gripping and conveying device. These grooves secure the stems during the flipping process, and together with the central flipping partition (wrapping the main diameter), ensure stable flipping, preventing the vegetables from falling and minimizing losses. A flexible wrapping material is preferably used to further minimize damage to the vegetables.

[0049] In a specific embodiment of the present invention, the shape and size of the groove is slightly larger than the average root radius of the flower head vegetables, preferably, 55 mm long and 50 mm wide, to ensure that the flower head vegetables can be stably placed in the groove. The groove material is food-grade ABS plastic, which is light and easy to clean. The second laying unit 302 is a long unit with a length of 500 mm, and the first laying unit 301 is a short unit with a length of 300 mm. The groove depth is 30 mm, which is adapted to the diameter of the flower head and can be compatible with flower heads with a diameter of 80-200 mm. The short unit takes over the front-end incoming materials, and the long unit delays the drop of materials, forming a time difference to avoid collision.

[0050] The flip partition 307 is made of a flexible material, preferably PVC.

[0051] like Figure 4 As shown, baffles 310 are respectively provided on both sides of the front end of the second laying unit 302. Preferably, the baffles 310 are made of stainless steel with a smooth surface to avoid damage to the head vegetables and complete the sliding of the head vegetables.

[0052] like Figure 6 As shown, the collecting box 311 is provided with a plurality of collecting partitions 312 arranged in parallel; the plurality of collecting partitions 312 divide the collecting box 311 into a plurality of collecting areas to reduce squeezing between vegetables.

[0053] The described vegetable head combine harvester further includes a counter and an alarm; the counter is installed at the end of the first conveying mechanism 303, and the counter and the alarm are respectively connected to the control device; the counter is used to calculate the number of vegetable heads and transmit it to the control device; when the number of vegetable heads reaches a preset value, the control device controls the alarm to sound an alarm.

[0054] The clamping and conveying device 2 includes two flexible clamping and conveying units; each flexible clamping and conveying unit includes two flexible clamping conveyor belts arranged opposite to each other; the flexible clamping and conveying units convey the bulb vegetables to the first laying unit 301 and the second laying unit 302 respectively.

[0055] The second driving mechanism includes a second driving motor 314, which drives the conveyor belt of the first conveying mechanism 303; the third driving mechanism includes a third driving motor 315, which drives the conveyor belt of the second conveying mechanism 304; the cutting mechanism is connected to the fourth driving motor 316, which drives the cutting mechanism to cut.

[0056] The conveyor belts of the first conveyor mechanism 303 and the second conveyor mechanism 304 are made of food-grade PVC and are 400 mm wide. Preferably, the height difference between the upper and lower conveyor belts is 300 mm to facilitate the falling of the flower bulb vegetables from the upper conveyor belt into the collection box 311.

[0057] In a specific embodiment of the present invention, the control device uses a touch screen for human-computer interaction, which is convenient for users to set and monitor parameters. 上 , the conveyor belt speed of the second conveying mechanism 304 is V 下 When the conveyor belt of the first conveyor mechanism 303 delivers the flower curds to the end of the conveyor belt, the right side of the first collection area of ​​the collection bin 311 on the conveyor belt of the second conveyor mechanism 304 is aligned with the conveyor belt of the first conveyor mechanism 303. This ensures that the horizontal displacement difference of the flower curds when they fall from the first conveyor mechanism 303 into the collection bin 311 is less than 10 mm to prevent deviation and collision. The conveyor belt of the first conveyor mechanism 303 has a non-slip silicone surface with a friction coefficient of μ = 0.6, which is suitable for carrying the flipped flower curds. Preferably, the standard collection bin 311 on the second conveyor mechanism 304 has dimensions of 740 × 400 × 200 mm. The interlayer spacing between the conveyor belts of the first conveyor mechanism 303 and the second conveyor mechanism 304 is 300 mm.

[0058] A control method for the bulb vegetable combine harvester includes the following steps:

[0059] The leaf-supporting mechanism 1 straightens the vegetable bulbs in the traveling direction to the middle position of the clamping and conveying front end of the clamping and conveying device 2, and the cutting device cuts the stems of the vegetable bulbs. The clamping and conveying device 2 clamps and conveys the cut vegetable bulbs to the first laying unit 301 and the second laying unit 302 respectively.

[0060] The control device controls the first driving mechanism and the second driving mechanism so that the first placing unit 301 and the second placing unit 302 place the vegetable heads successively onto the same conveying area of ​​the first conveying mechanism 303. The control device controls the third driving mechanism so that the second conveying mechanism 304 moves the collecting box 311 forward to collect the vegetable heads dropped from the first conveying mechanism 303.

[0061] The counter counts the number of vegetable heads falling into the collection box 311 and transmits it to the control device; when the number of vegetable heads reaches a preset value, the control device controls the alarm to sound an alarm, reminding the operator to unload the full collection box 311 and collect the next collection box 311.

[0062] The control device controls the speed of the first drive motor 313 and the second drive motor 314 so that the flower head vegetables fall into the collection box 311 in an orderly manner. At the same time, the third drive motor 315 is controlled to make the collection box 311 move forward intermittently. The intermittent time can be determined by counting the number of flower head vegetables falling into the collection box 311 according to the counter. In a specific embodiment of the present invention, preferably, 6 flower head vegetables can be stacked in each collection area. When a single collection area is filled with 6 flower head vegetables, the control device controls the third drive motor 315 to move the collection box 311 forward and align the next collection area under the rear end of the first conveying mechanism 303 for continuing to collect the fallen flower head vegetables, thereby realizing the orderly placement of the flower head vegetables in the collection box 311, reducing the squeezing between the flower head vegetables, and thus reducing the damage to the flower head vegetables.

[0063] The present invention achieves double-layer conveying of vegetable heads and automatic, orderly packaging after transport, resolving the bottleneck issue of low-loss, orderly harvesting of vegetable heads. The double-layer conveying and orderly placing device 3 comprises a first placing unit 301 and a second placing unit 302 of different lengths. A control device controls the first and second driving mechanisms so that the first and second placing units 301, 302 sequentially place the vegetable heads onto the same conveying area of ​​the first conveying mechanism 303, improving placing efficiency and allowing two vegetable heads to be dropped simultaneously into the collection bin 311 below.

[0064] The first conveyor mechanism 303 and the second conveyor mechanism 304 are arranged parallel to each other, enabling layered conveyance of the vegetable heads and the collection box 311. The vegetables transported by the first conveyor mechanism 303 fall into the collection box 311 of the second conveyor mechanism 304 below, allowing the collection box 311 and the vegetable heads to move in the same direction. This allows for a double-layered, orderly placement of the vegetable heads, improving transportation efficiency. The staggered placement units ensure orderly placement of the vegetable heads within the collection box 311, reducing squeezing between the vegetables. A control device reduces manual intervention, improving placement efficiency and accuracy.

[0065] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0066] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bulb vegetable combine harvester, characterized in that: It comprises a leaf supporting mechanism (1), a cutting device, a clamping and conveying device (2), a double-layer conveying and orderly laying device (3) and a control device; The leaf supporting mechanism (1) is arranged in front of the clamping and conveying device (2), the cutting device is located at the front end bottom of the clamping and conveying device (2), and the double-layer conveying and orderly laying device is arranged behind the clamping and conveying device (2); The double-layer conveying orderly laying device (3) comprises a first laying unit (301), a second laying unit (302), a first conveying mechanism (303) and a second conveying mechanism (304); the first laying unit (301) and the second laying unit (302) are arranged in parallel and above the first conveying mechanism (303); the length of the first laying unit (301) is less than the length of the second laying unit (302); the first conveying mechanism (303) and the second conveying mechanism (304) are arranged in parallel up and down. The second conveying mechanism (304) is located below the first conveying mechanism (303); the laying directions of the first laying unit (301) and the second laying unit (302) are perpendicular to the conveying directions of the first conveying mechanism (303) and the second conveying mechanism (304); a plurality of parallel conveying partitions (305) are provided on the conveying belt of the first conveying mechanism (303); the plurality of conveying partitions (305) divide the conveying belt into a plurality of conveying areas; the second conveying mechanism (304) is used to place a collecting box (311); The first laying unit (301) and the second laying unit (302) are connected to the first driving mechanism; the first conveying mechanism (303) is connected to the second driving mechanism; and the second conveying mechanism (304) is connected to the third driving mechanism. The control device is connected to the first drive mechanism, the second drive mechanism, and the third drive mechanism respectively; the control device controls the first drive mechanism and the second drive mechanism so that the first laying unit (301) and the second laying unit (302) lay the flower-shaped vegetables in the same conveying area of ​​the first conveying mechanism (303) in succession; the control device controls the third drive mechanism so that the second conveying mechanism (304) conveys the collection box forward for collecting the flower-shaped vegetables dropped from the first conveying mechanism (303).

2. The flower bulb vegetable combine harvester according to claim 1, characterized in that: The first laying unit (301) and the second laying unit (302) both comprise a groove-shaped turning belt (306); the groove-shaped turning belt (306) is provided with a plurality of turning partitions (307) for dividing the groove-shaped turning belt (306) into a plurality of turning zones; the clamping and conveying device (2) sequentially conveys the flower bulb vegetables to the turning zones of the groove-shaped turning belt (306).

3. The flower bulb vegetable combine harvester according to claim 2, characterized in that: The first driving mechanism includes a first driving motor (313), a gearbox (308) and a transmission mechanism (309); The output shaft of the first driving motor (313) is connected to a gearbox (308), which is connected to the clamping and conveying device (2) to control the conveying speed of the clamping and conveying device (2); the grooved turning belts (306) of the first laying unit (301) and the second laying unit (302) share a common driving shaft, and the gearbox (308) is also connected to the driving shaft of the grooved turning belt (306) via a transmission mechanism (309).

4. The flower bulb vegetable combine harvester according to claim 2, characterized in that: The two sides of the turnover area respectively include two grooves.

5. The flower bulb vegetable combine harvester according to claim 2, characterized in that: The flip partition (307) is made of a flexible material.

6. The flower bulb vegetable combine harvester according to claim 2, characterized in that: Baffles (310) are respectively provided on both sides of the front end of the second laying unit (302).

7. The flower bulb vegetable combine harvester according to claim 1, characterized in that: The collecting box (311) is provided with a plurality of collecting partitions (312) arranged in parallel; the plurality of collecting partitions (312) divide the collecting box (311) into a plurality of collecting areas.

8. The flower bulb vegetable combine harvester according to claim 7, characterized in that: The invention also includes a counter and an alarm; the counter is installed at the end of the first conveying mechanism (303), and the counter and the alarm are respectively connected to the control device; the counter is used to calculate the number of flower head vegetables and transmit the number to the control device; when the number of flower head vegetables reaches a preset value, the control device controls the alarm to sound an alarm.

9. The flower bulb vegetable combine harvester according to claim 1, characterized in that: The clamping and conveying device (2) comprises two flexible clamping and conveying units; each flexible clamping and conveying unit comprises two flexible clamping and conveying belts arranged opposite to each other; the flexible clamping and conveying units convey the bulb vegetables to the first laying unit (301) and the second laying unit (302) respectively.

10. A control method for a bulb vegetable combine harvester according to any one of claims 1 to 9, characterized in that: The following steps are involved: The leaf-supporting mechanism (1) straightens the bulb vegetable plants in the traveling direction to the middle position of the clamping and conveying front end of the clamping and conveying device (2); the cutting device cuts the stems of the bulb vegetables; the clamping and conveying device (2) clamps the cut bulb vegetables and conveys them backward to the first laying unit (301) and the second laying unit (302); The control device controls the first driving mechanism and the second driving mechanism so that the first laying unit (301) and the second laying unit (302) lay the flower-shaped vegetables in the same conveying area of ​​the first conveying mechanism (303) in sequence, and the control device controls the third driving mechanism so that the second conveying mechanism (304) conveys the collection box (311) forward to collect the flower-shaped vegetables dropped from the first conveying mechanism (303); The counter counts the number of vegetable heads falling into the collection box (311) and transmits the count to the control device; when the number of vegetable heads reaches a preset value, the control device controls the alarm to sound an alarm.

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