Self-adaptive sorting device and method suitable for harvesting heading vegetables and harvester

Abstract

The invention provides a self-adaptive sorting device and method suitable for harvesting heading vegetables and a harvester. The self-adaptive sorting device comprises a belt sorting table, a driving part, a supporting rack and a control unit. The belt sorting table and the driving part are installed on the supporting rack, the driving part is connected with the belt sorting table, and the driving part is used for driving the belt sorting table to convey heading vegetables; the belt sorting table is provided with a resistance strain type weighing sensor; the control unit is respectively connected with the resistance strain type weighing sensor and the driving part; the resistance strain type weighing sensor is used for detecting weight information of the head vegetables at the front end of the belt sorting table and transmitting the weight information to the control unit, and the control unit controls the conveying speed of the belt sorting table according to the weight information. According to the broccoli harvester, it can be guaranteed that each heading cauliflower has enough time to be accurately sorted, the broccoli harvesting efficiency is improved, the manual labor amount is reduced, popularization is easy, and equipment support is provided for large-scale production of the heading cauliflower.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to an adaptive sorting device and method and a harvester suitable for harvesting head vegetables. Background Art

[0002] Cabbage is a common vegetable, such as cabbage and Chinese cabbage. During the growth process, the leaves of these vegetables will gradually curl inward to form a tight sphere to protect the tender leaves and buds inside. The sorting process is crucial to ensure the quality and market value of vegetables.

[0003] In the traditional process of harvesting cabbage, manual picking and sorting are often relied on, which is not only inefficient, but also easily causes damage to the vegetables, affecting their quality and shelf life. Therefore, the development of a sorting device suitable for transporting cabbage is of great significance to improving agricultural production efficiency and ensuring vegetable quality. Summary of the invention

[0004] In response to the above technical problems, the present invention provides an adaptive sorting device and method suitable for harvesting cabbage vegetables, which is beneficial to ensure that each cabbage cauliflower has enough time to be accurately sorted, improves the efficiency of broccoli harvesting, reduces manual labor, is easy to promote, and provides equipment support for the large-scale production of cabbage vegetables.

[0005] The present invention also provides a harvester comprising the adaptive sorting device suitable for harvesting heading vegetables.

[0006] Note that the description of these objectives does not prevent the existence of other objectives. One embodiment of the present invention does not need to achieve all of the above objectives. Objectives other than the above objectives can be extracted from the description of the specification, drawings, and claims.

[0007] The present invention achieves the above technical objectives through the following technical means.

[0008] An adaptive sorting device suitable for harvesting head vegetables, comprising a belt sorting platform, a driving component, a supporting frame and a control unit;

[0009] The belt sorting platform and the driving component are installed on the supporting frame, the driving component is connected to the belt sorting platform, and the driving component is used to drive the belt sorting platform to transport the cabbage; the belt sorting platform is provided with a resistance strain type weighing sensor;

[0010] The control unit is connected to the resistive strain type weighing sensor and the driving component respectively; the resistive strain type weighing sensor is used to detect the weight information of the balled vegetables at the front end of the belt sorting platform and transmit it to the control unit, and the control unit controls the conveying speed of the belt sorting platform according to the weight information.

[0011] In the above scheme, the belt sorting platform also includes a driving roller, a driven sprocket, a support plate, a belt pad and a driven roller;

[0012] The active roller and the driven roller are respectively installed at the two ends of the belt pad, the driven sprocket is installed on the side of the active roller, and the two sides of the belt pad are respectively provided with support plates; the belt is installed on the active roller, the belt pad and the driven roller;

[0013] The resistance strain type weighing sensor is installed at the front end of the belt pad and is used to detect the weight information of the balled vegetables at the front end of the belt.

[0014] Furthermore, the belt sorting platform also includes a tail cover and a head cover;

[0015] The two ends of the support plate are respectively provided with a tail cover and a nose cover;

[0016] The active roller is installed between the two machine head covers, and the driven sprocket is installed outside the machine head covers;

[0017] The driven roller is installed between the two tail covers.

[0018] Furthermore, the belt sorting platform also includes a round tube frame;

[0019] The round tube frame is installed on the belt pad and is located above the belt pad.

[0020] Furthermore, a welding gasket is provided between the support plate and the circular tube frame.

[0021] In the above scheme, the driving component includes a conveying motor part; the conveying motor part includes a motor driven sprocket, a rear cover, a housing, a cover, a reduction box, an output shaft and a room temperature motor;

[0022] The room temperature motor is installed in a casing, and a rear cover is provided at one end of the casing;

[0023] A machine cover is provided at the connection between the other end of the casing and the reduction box;

[0024] The power of the room temperature motor is transmitted to the output shaft through the reduction box, and the output shaft is connected to the motor driven sprocket; the motor driven sprocket is connected to the driven sprocket through the transmission chain; the room temperature motor is connected to the control unit.

[0025] Furthermore, the conveying motor part also includes a mounting plate; the mounting plate is installed between the motor driven sprocket and the reduction box, and the motor driven sprocket is installed outside the motor mounting plate.

[0026] Furthermore, a motor shield is provided outside the conveying motor part;

[0027] The motor shield comprises an upper shield, a shield mounting plate and a lower shield; the upper shield and the lower shield are connected to form the main body of the motor shield, one end of the shield mounting plate is connected to the main body of the motor shield, and the other end is connected to the mounting plate.

[0028] A harvester comprises the adaptive sorting device suitable for harvesting heading vegetables.

[0029] A control method according to the adaptive sorting device suitable for harvesting heading vegetables comprises the following steps:

[0030] The driving component drives the belt sorting platform to transport the cabbage. The resistive strain type weighing sensor detects the weight information of the cabbage entering the front end of the belt sorting platform and transmits it to the control unit. The control unit compares the detected weight information with the preset value. When the detected value is greater than the preset value, the control unit controls the driving component to reduce the rotation speed, so that the speed of the belt sorting platform transporting the cabbage becomes slower; when the detected value is less than the preset value, the control unit controls the driving component to increase the rotation speed, so that the speed of the belt sorting platform transporting the cabbage becomes faster.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The driving component of the present invention drives the belt sorting platform to transport cabbages, and the resistance strain type weighing sensor detects the weight information of cabbages entering the front end of the belt sorting platform and transmits it to the control unit. The control unit compares the detected weight information with a preset value. When the detected value is greater than the preset value, the control unit controls the driving component to reduce the rotation speed, so that the speed of the belt sorting platform transporting the cabbages becomes slower; when the detected value is less than the preset value, the control unit controls the driving component to increase the rotation speed, so that the speed of the belt sorting platform transporting the cabbages becomes faster. The present invention senses the change of mass through the resistance strain type weighing sensor, thereby changing the motor rotation speed, ensuring that each cabbage has enough time to be accurately sorted. The present invention has a simple working principle, but can realize continuous and rapid sorting operations, greatly improves the efficiency of cabbage harvesting, reduces manual labor, is easy to promote, and provides equipment support for large-scale production of cabbages.

[0033] Note that the description of these effects does not prevent 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

[0034] Figure 1 The figure is a schematic diagram of the overall structure of a sorting device suitable for conveying cabbage according to one embodiment of the present invention.

[0035] Figure 2This is a schematic diagram of the structure of a belt sorting platform of a sorting device suitable for conveying cabbage according to an embodiment of the present invention.

[0036] Figure 3 This is a schematic diagram of the motor shield structure of a sorting device suitable for conveying cabbage according to an embodiment of the present invention.

[0037] Figure 4 This is a schematic diagram of the structure of the conveying motor portion of a sorting device suitable for conveying cabbage according to an embodiment of the present invention.

[0038] Figure 5 It is a schematic side view of the conveying motor part of a sorting device suitable for conveying cabbage according to one embodiment of the present invention.

[0039] Figure 6 This is a schematic diagram of the support frame structure of a sorting device suitable for conveying cabbage according to an embodiment of the present invention.

[0040] Figure 7 This is a control diagram of room temperature motor speed change of a sorting device suitable for conveying cabbage according to one embodiment of the present invention.

[0041] Figure 8 This is a schematic diagram of an application of a sorting device suitable for conveying cabbage according to an embodiment of the present invention.

[0042] In the figure:

[0043] 1-belt sorting table; 2-motor shield; 3-conveying motor part; 4-support frame; 101-driving roller; 102-driven sprocket; 103-support plate; 104-welding gasket; 105-circular tube frame; 106-belt pad; 107-driven roller; 108-tail cover; 109-head cover; 110-resistance strain type weighing sensor; 201-upper shield; 202-shield mounting plate; 203-lower shield; 301-mounting plate; 302-motor driven sprocket; 303-reduction box cover nail; 304-rear cover; 305-casing; 306-rear cover Nail; 307-machine cover; 308-reduction gearbox; 309-output shaft; 310-room temperature motor; 401-first conveyor platform mounting plate; 402-second conveyor platform mounting plate; 403-first long mounting plate; 404-third conveyor platform mounting plate; 405-second long mounting plate; 406-third long mounting plate; 407-fourth conveyor platform mounting plate; 408-first vertical mounting plate; 409-second vertical mounting plate; 410-third vertical mounting plate; 411-fourth vertical mounting plate; 412-fifth vertical mounting plate; 413-fourth long mounting plate; 414-horizontal mounting plate. DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, 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 should not be construed as limiting the present invention.

[0045] 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 positions or positional relationships based on the positions 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 technical features indicated. 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, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Example 1

[0048] Figure 1 The figure shows a preferred embodiment of the adaptive sorting device for harvesting head vegetables of the present invention, wherein the adaptive sorting device for harvesting head vegetables comprises a belt sorting platform 1, a driving component, a supporting frame 4 and a control unit;

[0049] The belt sorting platform 1 and the driving component are installed on the supporting frame 4, the driving component is connected to the belt sorting platform 1, and the driving component is used to drive the belt sorting platform 1 to transport the cabbage; the belt sorting platform 1 is provided with a resistance strain type weighing sensor 110;

[0050] The control unit is connected to the resistive strain type weighing sensor 110 and the driving component respectively; the resistive strain type weighing sensor 110 is used to detect the weight information of the cabbage at the front end of the belt sorting platform 1 and transmit it to the control unit, and the control unit controls the conveying speed of the belt sorting platform 1 according to the weight information.

[0051] like Figure 2 As shown, the belt sorting platform 1 further includes a driving roller 101, a driven sprocket 102, a support plate 103, a belt pad 106 and a driven roller 107;

[0052] The active roller 101 and the driven roller 107 are respectively installed at both ends of the belt pad 106, the driven sprocket 102 is installed on the side of the active roller 101, and the two sides of the belt pad 106 are respectively provided with support plates 103; the belt is installed on the active roller 101, the belt pad 106 and the driven roller 107;

[0053] The resistive strain type weighing sensor 110 is installed at the front end of the belt pad 106 to detect the weight information of the balled vegetables at the front end of the belt.

[0054] The belt sorting platform 1 also includes a tail cover 108 and a head cover 109; the two ends of the support plate 103 are respectively provided with a tail cover 108 and a head cover 109; the active roller 101 is installed between the two head covers 109, and the driven sprocket 102 is installed on the outside of the head cover 109; the driven roller 107 is installed between the two tail covers 108.

[0055] The belt sorting platform 1 further includes a round tube frame 105; the round tube frame 105 is mounted on the belt pad 106 and is located above the belt pad 106 to prevent the head vegetables from falling to the ground during transportation. Furthermore, the round tube frame 105 is not arranged behind one side of the belt pad 106 to facilitate sorting.

[0056] A welding gasket 104 is provided between the support plate 103 and the circular tube frame 105 to facilitate welding.

[0057] The support plate 103 is an aluminum plate, which is beneficial to the lightweight of the device.

[0058] The active roller 101 is driven to rotate by the driving component to provide power for the entire sorting system. The rotation of the active roller 101 drives the driven sprocket 102 to rotate, which plays a role in transmitting power. The support plate 103 plays a role in supporting heavy objects on the sorting platform. The welding gasket 104 facilitates the welding of the round tube frame 105 with the tail cover 108 or the head cover 109. The round tube frame 105 is beneficial to prevent the head vegetables from falling to the ground during transportation. The belt pad 106 plays a role in flattening and supporting the belt to support the head vegetables. The driven roller 107 realizes power transmission by cooperating with the active roller 101. The resistive strain weighing sensor 110 is used to detect the weight of the head cauliflower on the belt pad 106 and transmit it to the control unit. The control unit compares the detected weight information with the preset value, and controls the driving component to change the conveying speed of the belt sorting platform 1 according to the comparison result.

[0059] like Figure 4 and 5 As shown, the driving component includes a conveying motor part 3; the conveying motor part 3 includes a motor driven sprocket 302, a reduction box cover nail 303, a back cover 304, a casing 305, a back cover nail 306, a cover 307, a reduction box 308, an output shaft 309 and a room temperature motor 310; the room temperature motor 310 is installed in the casing 305, one end of the casing 305 is provided with a back cover 304, and the rear cover 304 is fixed to the casing 305 by the rear cover nail 306 on all sides; the other end of the casing 305 is provided with a cover 307 at the connection with the reduction box 308, and the cover 307 is fixed to the reduction box 308 by the reduction box cover nail 303 on all sides; the power of the room temperature motor 310 is transmitted to the output shaft 309 through the reduction box 308, and the output shaft 309 is connected to the motor driven sprocket 302; the motor driven sprocket 302 is connected to the driven sprocket 102 through the transmission chain; the room temperature motor 310 is connected to the control unit.

[0060] The conveying motor part 3 further includes a mounting plate 301 ; the mounting plate 301 is mounted between the motor driven sprocket 302 and the reduction box 308 , and the motor driven sprocket 302 is mounted outside the motor mounting plate 301 .

[0061] The mounting plate 301 facilitates the installation of the conveying motor part 3, the motor driven sprocket 302 is responsible for transmitting the power generated by the room temperature motor 310, the reduction box cover nails 303 play a fastening role, the rear cover 304, the housing 305 and the cover 307 play a protective role for the room temperature motor 310, the reduction box 308 is responsible for bearing a large load and converting the high-speed rotational force input by the motor into a slower output speed, the output shaft 309 transmits the power to the motor driven sprocket 302, and the room temperature motor 310 is responsible for generating power, and the control unit controls the room temperature motor 310 to reduce the speed according to the weight change sensed by the resistance strain type weighing sensor 110 if the weight is greater than the preset value; if the weight is less than the preset value, the speed of the room temperature motor 310 is controlled to increase.

[0062] like Figure 3 As shown, the conveying motor part 3 is provided with a motor shield 2 outside; the motor shield 2 includes an upper shield 201, a shield mounting plate 202 and a lower shield 203; the upper shield 201 and the lower shield 203 form the main body of the motor shield 2, one end of the shield mounting plate 202 is connected to the main body of the motor shield 2, and the other end is connected to the mounting plate 301. The upper shield 201 and the lower shield 203 are separately arranged for easy disassembly. The upper shield 201 and the lower shield 203 play the role of protecting the conveying motor part 3 from external damage, and the shield mounting plate 202 plays the role of connecting with the mounting plate 301.

[0063] like Figure 6 As shown, the supporting frame 4 includes a first conveyor platform mounting plate 401, a second conveyor platform mounting plate 402, a first long mounting plate I403, a third conveyor platform mounting plate 404, a second long mounting plate 405, a third long mounting plate 406, a fourth conveyor platform mounting plate 407, a first vertical mounting plate I408, a second vertical mounting plate 409, a third vertical mounting plate 410, a fourth vertical mounting plate 411, a fifth vertical mounting plate 412, a fourth long mounting plate 413 and a horizontal mounting plate 414. The first conveyor platform mounting plate 401 and the fourth conveyor platform mounting plate 407 are installed on the third long mounting plate 406, the second conveyor platform mounting plate 402 is installed on the first long mounting plate 403, the third conveyor platform mounting plate 404 is installed on the second long mounting plate 405, the first vertical mounting plate I408 and the fifth vertical mounting plate 412 are installed below the third long mounting plate 406, the second vertical mounting plate 409 is installed below the second conveyor platform mounting plate 402, the third vertical mounting plate 410 is installed below the junction of the first long mounting plate 403 and the second long mounting plate 405, and the fourth vertical mounting plate 411 is installed below the second long mounting plate 405.

[0064] The first long mounting plate 403, the second long mounting plate 405, the third long mounting plate 406, the fourth long mounting plate 413 and the horizontal mounting plate 414 play a reinforcing role to prevent the supporting frame 4 from falling loose. The first vertical mounting plate 408, the second vertical mounting plate 409, the third vertical mounting plate 410, the fourth vertical mounting plate 411, the fifth vertical mounting plate V412 and the fourth long mounting plate 413 play a supporting role for the belt sorting platform 1. The first conveyor platform mounting plate 401, the second conveyor platform mounting plate 402, the third conveyor platform mounting plate 404 and the fourth conveyor platform mounting plate 407 are mainly used to facilitate the connection between the supporting frame 4 and the belt sorting platform 1.

[0065] like Figure 7 As shown, a control method of the adaptive sorting device suitable for harvesting cabbage vegetables comprises the following steps:

[0066] The room temperature motor 310 of the driving component provides power to rotate the active roller 101 and the driven roller 107, drive the belt to rotate, and transport the cabbage. The resistive strain type weighing sensor 110 detects the weight information of the cabbage entering the front end of the belt sorting platform 1 and transmits it to the control unit. The control unit compares the detected weight information with the preset value. When the detected value is greater than the preset value, the control unit controls the room temperature motor 310 of the driving component to reduce the speed, so that the speed of the belt sorting platform 1 transporting the cabbage becomes slower; when the detected value is less than the preset value, the control unit controls the room temperature motor 310 of the driving component to increase the speed, so that the speed of the belt sorting platform 1 transporting the cabbage becomes faster.

[0067] The present invention detects the weight information change of the cabbage at the front end of the belt sorting platform 1 through the resistive strain type weighing sensor 110, thereby changing the rotation speed of the room temperature motor 310, which is beneficial to ensure that each cabbage has enough time to be accurately sorted. The present invention has a simple working principle, can improve the broccoli harvesting efficiency, reduce manual labor, is easy to promote, and provides equipment support for the large-scale production of cabbage.

[0068] Example 2

[0069] Figure 8 Shown is a harvester, including the adaptive sorting device and method for harvesting head vegetables described in Example 1, and thus having the beneficial effects described in Example 1, which will not be described in detail here.

[0070] 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 may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0071] 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. All 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. An adaptive sorting device suitable for harvesting heading vegetables, characterized in that: It comprises a belt sorting platform (1), a driving component, a supporting frame (4) and a control unit; The belt sorting platform (1) and the driving component are installed on a supporting frame (4); the driving component is connected to the belt sorting platform (1); the driving component is used to drive the belt sorting platform (1) to transport the cabbage; the belt sorting platform (1) is provided with a resistance strain type weighing sensor (110); The control unit is connected to the resistive strain type weighing sensor (110) and the driving component respectively; the resistive strain type weighing sensor (110) is used to detect weight information of the cabbage balls at the front end of the belt sorting platform (1) and transmit the weight information to the control unit, and the control unit controls the conveying speed of the belt sorting platform (1) according to the weight information.

2. The adaptive sorting device for harvesting cabbage vegetables according to claim 1, characterized in that: The belt sorting platform (1) further comprises a driving roller (101), a driven sprocket (102), a support plate (103), a belt pad (106) and a driven roller (107); The active roller (101) and the driven roller (107) are respectively mounted on two ends of a belt pad (106); the driven sprocket (102) is mounted on the side of the active roller (101); and support plates (103) are respectively provided on both sides of the belt pad (106); the belt is mounted on the active roller (101), the belt pad (106) and the driven roller (107); The resistance strain type weighing sensor (110) is installed at the front end of the belt pad (106) and is used to detect the weight information of the balled vegetables at the front end of the belt.

3. The adaptive sorting device for harvesting heading vegetables according to claim 2, characterized in that: The belt sorting platform (1) further comprises a tail cover (108) and a head cover (109); The two ends of the support plate (103) are respectively provided with a tail cover (108) and a nose cover (109); The active roller (101) is installed between the two machine head covers (109), and the driven sprocket (102) is installed outside the machine head covers (109); The driven roller (107) is installed between the two tail covers (108).

4. The adaptive sorting device for harvesting heading vegetables according to claim 2, characterized in that: The belt sorting platform (1) further comprises a round tube frame (105); The circular tube frame (105) is installed on the belt pad (106) and is located above the belt pad (106).

5. The adaptive sorting device for harvesting heading vegetables according to claim 4, characterized in that: A welding gasket (104) is provided between the support plate (103) and the circular tube frame (105).

6. The adaptive sorting device for harvesting heading vegetables according to claim 2, characterized in that: The driving component comprises a conveying motor part (3); the conveying motor part (3) comprises a motor driven sprocket (302), a rear cover (304), a housing (305), a cover (307), a reduction box (308), an output shaft (309) and a room temperature motor (310); The room temperature motor (310) is installed in a casing (305), and a rear cover (304) is provided at one end of the casing (305); A machine cover (307) is provided at the connection between the other end of the machine housing (305) and the reduction box (308); The power of the room temperature motor (310) is transmitted to the output shaft (309) through the reduction box (308); the output shaft (309) is connected to the motor driven sprocket (302); the motor driven sprocket (302) is connected to the driven sprocket (102) through a transmission chain; the room temperature motor (310) is connected to the control unit.

7. The adaptive sorting device for harvesting heading vegetables according to claim 6, characterized in that: The conveying motor part (3) further comprises a mounting plate (301); the mounting plate (301) is mounted between the motor driven sprocket (302) and the reduction box (308), and the motor driven sprocket (302) is mounted outside the motor mounting plate (301).

8. The adaptive sorting device for harvesting heading vegetables according to claim 7, characterized in that: The conveying motor part (3) is provided with a motor shield (2) outside; The motor shield (2) comprises an upper shield (201), a shield mounting plate (202) and a lower shield (203); the upper shield (201) and the lower shield (203) are connected to form the main body of the motor shield (2); one end of the shield mounting plate (202) is connected to the main body of the motor shield (2), and the other end is connected to the mounting plate (301).

9. A harvester, characterized in that: The invention comprises an adaptive sorting device suitable for harvesting heading vegetables as described in any one of claims 1 to 8.

10. A control method for an adaptive sorting device for harvesting head vegetables according to any one of claims 1 to 8, characterized in that: The following steps are involved: The driving component drives the belt sorting platform (1) to transport the cabbage, and the resistance strain type weighing sensor (110) detects the weight information of the cabbage entering the front end of the belt sorting platform (1) and transmits it to the control unit. The control unit compares the detected weight information with a preset value. When the detected value is greater than the preset value, the control unit controls the driving component to reduce the rotation speed, so that the speed of the belt sorting platform (1) transporting the cabbage becomes slower; when the detected value is less than the preset value, the control unit controls the driving component to increase the rotation speed, so that the speed of the belt sorting platform (1) transporting the cabbage becomes faster.

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