Full-automatic harvesting device and method for upper tobacco leaves of flue-cured tobaccos with stems

Abstract

The invention relates to a full-automatic flue-cured tobacco upper tobacco leaf stem harvesting device and method.The top of a movable bearing trolley is connected with a loading hopper through a lifting platform, a monitoring camera is installed on the front portion of the loading hopper, and supporting and transferring flat plates are fixedly installed on the two sides of the top of the loading hopper; a limiting baffle is fixedly installed at the top of the outer side of the supporting and transferring flat plate, a pushing electric push rod is fixedly installed on the outer side of the limiting baffle, the output end of the pushing electric push rod is connected with a push plate movably installed on the inner side of the limiting baffle, and an automatic cutting and harvesting mechanism is arranged on the front sides of the supporting and transferring flat plate and the limiting baffle. Automatic and mechanical harvesting of the tobacco leaves with stems on the upper portion of the flue-cured tobacco is achieved, the overall automation degree is high, few manpower resources are used, and the work and operation efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of flue-cured tobacco picking, and in particular to a fully automatic device and method for harvesting upper tobacco leaves with stems of flue-cured tobacco. Background Art

[0002] The upper tobacco leaves have a great impact on the overall yield and quality of flue-cured tobacco. High-quality upper leaves play a leading role in the leaf group formula of modern blended cigarettes and low-tar flue-cured tobacco, and have a great impact on the flavor and style of cigarettes. With the in-depth promotion of "tar reduction and harm reduction", the problem of insufficient flavor and reduced usability of the middle and lower leaves after tar reduction treatment has become more prominent. In addition, with the rapid development of medium, thin, and low-tar cigarettes, it is urgent to use mature upper leaves to make up for the lack of aroma quality and aroma quantity. The importance of upper leaf quality is becoming increasingly important.

[0003] With the continuous promotion of the baking technology of the upper tobacco leaves with stems, it is required that 4-6 upper leaves are fully matured and harvested at one time, preferably in the morning on a sunny day. When harvesting, cut them with a knife 2-4 cm away from the lowest leaf position, with the knife and the stem at an angle of 30°-45°, and it is strictly forbidden to fold them by hand12. In order to ensure the exchange and circulation of water between the stems and leaves, the stems cannot be broken, and they must be cut with a knife, and the cross section must be cut into an oblique mouth instead of a flat mouth. The damage to the stems and leaves should be minimized during the cutting process. The above-mentioned traditional harvesting of the upper tobacco leaves with stems adopts manual operation, which has low work efficiency and high labor intensity, and there is no inaccurate control of the cutting size. At the same time, the manual harvesting method requires the transfer and sorting of the harvested stemmed tobacco during the overall operation process, which is laborious and time-consuming, reducing the harvesting efficiency.

[0004] Therefore, the present invention provides a fully automatic flue-cured tobacco upper tobacco leaf with stems harvesting device and method with simple structure, high working and operating efficiency, saving human resources, high degree of mechanization and automation, precise control, greatly improved harvesting accuracy and speed, reduced labor intensity, capable of collecting and sorting harvested flue-cured tobacco with stems, and simple and easy-to-operate harvesting method, which has broad market prospects. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a fully automatic flue-cured tobacco upper tobacco leaf with stems harvesting device and method which has a simple structure, high working and operating efficiency, saves human resources, has a high degree of mechanization and automation, has precise control, greatly improves the harvesting accuracy and speed, reduces the intensity of manual labor, can collect and sort the harvested flue-cured tobacco with stems, and has a simple and easy-to-operate harvesting method, so as to overcome the defects in the prior art.

[0006] The technical solution of the present invention is achieved as follows: a fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device comprises a mobile carrying trolley, the top of the mobile carrying trolley is connected to the loading bucket through a lifting platform, a monitoring camera is installed at the front of the loading bucket, supporting and transferring flat plates are fixedly installed on both sides of the top of the loading bucket, a limiting baffle is fixedly installed on the outer top of the supporting and transferring flat plate, an electric push rod for pushing materials is fixedly installed on the outer side of the limiting baffle, the output end of the electric push rod for pushing materials is connected to a push plate movably installed on the inner side of the limiting baffle, and an automatic cutting and harvesting mechanism is arranged on the front side of the supporting and transferring flat plate and the limiting baffle.

[0007] Furthermore, the automatic cutting and harvesting mechanism includes an automatic cutting and harvesting box fixedly installed on the front side of the supporting and transporting flat plate, a tobacco stem positioning through-hole groove is provided in the middle of the automatic cutting and harvesting box, an infrared probe is fixedly installed on one side of the inner wall of the tobacco stem positioning through-hole groove, a movable cutter head is provided on the inner wall of the tobacco stem positioning through-hole groove inside the infrared probe, a cutting support seat connected with the movable cutter head is provided on the other side of the inner wall of the tobacco stem positioning through-hole groove, a through hole is horizontally opened on the automatic cutting and harvesting box inside the tobacco stem positioning through-hole groove, the inner end of the movable cutter head is installed in the through hole, the outer end of the movable cutter head is arranged in the tobacco stem positioning through-hole groove, a cutter head telescopic electric push rod with an output end located in the through hole is fixedly installed on the inner side surface of the automatic cutting and harvesting box, the output end of the cutter head telescopic electric push rod is fixedly connected to the inner end of the movable cutter head, a micro-rotating motor is longitudinally arranged on the automatic cutting and harvesting box outside the tobacco stem positioning through-hole groove, and a harvesting push rod is installed on the top of the micro-rotating motor.

[0008] Preferably, a traveling motor is provided at the bottom of the mobile carrying trolley, an output end of the traveling motor is connected to the wheels via an axle, and a rechargeable battery pack and a controller are provided inside the mobile carrying trolley.

[0009] Preferably, the lifting platform is an inverted square trough structure, the inner bottom of the lifting platform is fixedly connected to the output end of the vertical lifting electric push rod, the bottom of the vertical lifting electric push rod is fixedly connected to the top of the mobile carrying trolley, the outer side of the lifting platform is provided with a lifting guide strip, and a guide limit sleeve box with an opening on the top is mounted on the outer side of the lifting platform, and the inner wall of the guide limit sleeve box is provided with a guide groove matching the lifting guide strip.

[0010] Preferably, the supporting transfer flat plate is horizontally fixedly installed on the top outer side of the loading bucket, a storage bin is provided in the loading bucket, a baffle is provided on the outer side of the loading bucket, the rear side and the top of the loading bucket are both open structures, and the monitoring camera is installed at the center position of the baffle on the front side of the loading bucket.

[0011] Preferably, the setting direction of the limit baffle is perpendicular to the setting direction of the supporting transfer plate, the bottom of the limit baffle and the outer side surface of the supporting transfer plate are an integrated structure, and the electric push rod for pushing materials is fixedly installed on the bracket outside the limit baffle.

[0012] Preferably, the width of the automatic cutting-off and collecting box is equal to the width of the supporting transfer flat plate, the automatic cutting-off and collecting box is fixedly connected to the outer wall of the loading bucket through a fixed support block, the tobacco stem positioning through hole groove extends from the front side of the automatic cutting-off and collecting box to the rear side of the automatic cutting-off and collecting box, and the front side of the tobacco stem positioning through hole groove is an arc-shaped opening structure extending outward.

[0013] Preferably, the detection direction of the infrared probe is toward the center position of the tobacco stem positioning through-hole groove, the angle between the outer end of the movable cutter head and the horizontal plane is 30-45 degrees, the harvesting push rod is an L-shaped rod structure that can rotate around the axis of the micro-rotating motor, the length of the upper horizontal rod of the harvesting push rod is not less than the width of the automatic cutting harvesting box, and the cutter head telescopic electric push rod is fixedly installed on the front side of the loading bucket by a support rod.

[0014] A harvesting method of the fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device as described above, the method comprising the following steps: S1. Place the mobile carrying trolley between two rows of tobacco plants, automatically cut off the harvesting box and correspond to the planting position of the two rows of tobacco plants, and after the mobile carrying trolley is running, the tobacco plant stem diameter is correspondingly connected to the tobacco stem positioning through hole groove; S2. After the infrared probe senses the tobacco stem diameter entering, the cutter head telescopic electric push rod is turned on. The cutter head telescopic electric push rod drives the movable cutter head to move toward the cutting support seat position, and the stem that penetrates into the tobacco stem positioning through hole groove is cut at an angle of 30-45 degrees; S3. While the cutting operation is in progress, the micro rotary motor drives the harvesting push rod to rotate, and the harvesting push rod applies limited rotation pressure to the upper outer position of the stalk cut, and the upper tobacco leaves with stems after cutting are dumped and dropped onto the supporting transfer flat plate; S4. Start the electric push rod for pushing materials, and the push plate moves toward the top of the loading bucket to push the upper tobacco leaves with stems and flue-cured tobacco on the supporting transfer flat plate into the loading bucket, thereby completing the harvesting operation of the upper tobacco leaves with stems and flue-cured tobacco.

[0015] The present invention has the following positive effects: 1. The present invention provides a fully automatic device for harvesting the upper tobacco leaves with stems of flue-cured tobacco. The device uses a mobile carrying trolley to carry out traveling operations between flue-cured tobacco ridges. While traveling, the device uses an automatic cutting and harvesting box to align with the position of the tobacco plants. When the upper tobacco leaves are harvested, there are no other tobacco leaves on the flue-cured tobacco stalks at the bottom thereof. The tobacco stem positioning through-hole grooves are mostly used to directly align with the bare tobacco stem diameter position. As the mobile carrying trolley travels, an infrared probe is used to implement automatic feeding sensing, and a movable cutter head is driven to cut the stem diameter, thereby realizing automated and mechanized harvesting of the upper tobacco leaves with stems of flue-cured tobacco. The device has a high overall degree of automation, uses less human resources, and has high work and operation efficiency.

[0016] 2. When the stem diameter cutting operation is performed, the present invention uses a harvesting push rod to apply pressure to the upper position of the incision. After the harvesting and cutting operation of the upper tobacco leaves with stems is completed, the cut upper tobacco leaves with stems can be tilted and pushed to the top of the supporting transfer flat plate, and the push plate can be used to smoothly push the materials into the loading bucket, thereby realizing the loading, transportation and transfer operations of the materials after the harvesting operation, saving human resources, and at the same time, with the assistance of the monitoring camera, the harvesting height can be accurately controlled, and the height adjustment operation can be performed using a lifting platform, so as to facilitate the accurate positioning of the incision height.

[0017] 3. The angle between the outer end of the movable cutter head of the present invention and the horizontal plane is 30-45 degrees. When the automatic cutting operation is running, the rod diameter part can be cut at an oblique angle to ensure the quality control of the finished tobacco products in the later stage. The electric push rod for pushing materials, the electric push rod for telescopic cutter head, the micro rotary motor, the monitoring camera and the infrared probe are used together to realize the rod diameter positioning, the height adjustment operation before cutting, the automatic cutting and the material transfer operation in one, which greatly improves the harvesting efficiency.

[0018] 4. The present invention provides a harvesting method of a fully automatic upper tobacco leaf with stem harvesting device for flue-cured tobacco, which realizes the automated operation of harvesting the upper tobacco leaf with stem through four steps of ridge positioning, automatic detection, automatic cutting, and material transfer after cutting. The harvesting method relies on the layout structure of the harvesting device to form a corresponding harvest with the flue-cured tobacco in the planting area, and uses a fully automatic harvesting method to implement automated harvesting operations with stems for all upper tobacco leaves at the harvesting position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a top view structural schematic diagram of the fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device of the present invention.

[0020] Figure 2 It is a schematic diagram of the front side structure of the fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device of the present invention.

[0021] Figure 3It is a schematic diagram of the right side structure of the fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device of the present invention.

[0022] Figure 4 It is a schematic diagram of the rear side structure of the fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device of the present invention.

[0023] Figure 5 The present invention is a schematic diagram of the structure of the harvesting state of the fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device.

[0024] Figure 6 It is a schematic diagram of a partially enlarged structure of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the following description of the invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. The term "connection" only indicates the connection between devices and has no special meaning.

[0027] like Figure 1 , 2As shown in Figures 3, 4, 5 and 6, a fully automatic device for harvesting the upper tobacco leaves with stems of flue-cured tobacco comprises a mobile carrying trolley 1, the top of which is connected to a loading bucket 9 via a lifting platform 7, a monitoring camera 10 is installed at the front of the loading bucket 9, supporting and transferring plates 25 are fixedly installed on both sides of the top of the loading bucket 9, a limiting baffle 18 is fixedly installed on the outer top of the supporting and transferring plates 25, an electric push rod 19 for pushing materials is fixedly installed on the outer side of the limiting baffle 18, an output end of the electric push rod 19 is connected to a push plate 20 movably installed on the inner side of the limiting baffle 18, and an automatic cutting and harvesting mechanism is arranged on the front sides of the supporting and transferring plates 25 and the limiting baffle 18. The automatic cutting and harvesting mechanism comprises an automatic cutting and harvesting box 11 fixedly mounted on the front side of the supporting and transporting flat plate 25, a tobacco stem positioning through hole groove 13 is arranged in the middle of the automatic cutting and harvesting box 11, an infrared probe 12 is fixedly mounted on one side of the inner wall of the tobacco stem positioning through hole groove 13, a movable cutter head 14 is arranged on the inner wall of the tobacco stem positioning through hole groove 13 inside the infrared probe 12, a cutting support seat 15 mutually connected with the movable cutter head 14 is arranged on the other side of the inner wall of the tobacco stem positioning through hole groove 13, and the automatic cutting and harvesting mechanism 15 is arranged on the inner side of the tobacco stem positioning through hole groove 13. A through hole is horizontally opened on the box 11, and the inner end of the movable cutter head 14 is installed in the through hole, and the outer end of the movable cutter head 14 is arranged in the tobacco stem positioning through hole groove 13. A cutter head telescopic electric push rod 23 with an output end located in the through hole is fixedly installed on the inner side surface of the automatic cutting and harvesting box 11, and the output end of the cutter head telescopic electric push rod 23 is fixedly connected to the inner end of the movable cutter head 14. A micro rotary motor 16 is longitudinally arranged on the automatic cutting and harvesting box 11 outside the tobacco stem positioning through hole groove 13, and a harvesting push rod 17 is installed on the top of the micro rotary motor 16.

[0028] During specific operation, the mobile carrying trolley 1 serves as a power unit to provide bottom travel power and support for the upper components. According to the regulations in the flue-cured tobacco planting specifications, the tobacco plant row spacing is 1.1 meters to 1.4 meters, the tobacco plant height is 80 centimeters to 130 centimeters, and the height of the upper tobacco leaves of the flue-cured tobacco is 50 centimeters to 80 centimeters. The width of the mobile carrying trolley 1 is set according to the actual situation. In this embodiment, the width of the mobile carrying trolley 1 is 1.3 meters, which ensures that it can travel between ridges and implement corresponding harvesting operations on both sides of the stem diameter position. In this implementation, the bottom width of the mobile carrying trolley 1 is not adjustable, and the lifting platform 7 is used to determine the upper tobacco leaf stem harvesting position during the tobacco plant stem diameter harvesting operation to implement up and down positioning. In this embodiment, the lifting platform 7 is an integral structure. The loading bucket 9 is used to load and carry the harvested flue-cured tobacco. In this embodiment, there is one loading bucket, which is not fixedly installed on the upper part of a lifting platform 7 as a whole. The monitoring camera 10 provides video monitoring for the height adjustment of the harvesting operation, and uploads the video to the controller 27 for data processing, and then drives the lifting platform 7 to perform the lifting and regulating operation. The supporting transfer flat plate 25 receives the rod diameter after the harvesting and dumping, and uses the push plate 20 to push the rod diameter into the loading bucket 9 for storage and transfer operations.

[0029] The automatic cutting and harvesting mechanism positions the stem diameter for harvesting during the process of moving, uses the tobacco stem positioning through-hole groove 13 to correspondingly plug the stem diameter, and then uses the infrared probe 12 to identify the stem diameter after feeding, and drives the cutter head telescopic electric push rod 23 to move the movable cutter head 14 toward the position of the cutting support seat 15. During the movement, the stem diameter clamped in the tobacco stem positioning through-hole groove 13 is cut, and the micro-rotating motor 16 is used to drive the harvesting push rod 17 to rotate while the cutting operation is running, and the upper position of the incision is pressed, and the cut stem tobacco upper tobacco leaf stem diameter is dumped onto the supporting transfer flat plate 25. In order to improve the stability and efficiency of this product during use, the top surface of the supporting transfer flat plate 25 is on the same plane as the top surface of the automatic cutting and harvesting box 11, which is convenient for the receiving operation after the upper tobacco leaf stem diameter of the stem tobacco is dumped.

[0030] The bottom of the mobile load-bearing trolley 1 is provided with a travel motor 2, and the output end of the travel motor 2 is connected to the wheel 3 through a shaft, and a rechargeable battery pack 26 and a controller 27 are provided in the mobile load-bearing trolley 1. Specifically, the travel motor 2 drives the shaft to rotate, and the shaft drives the wheel 3 to move. In order to increase the stability of this product, the four wheels are arranged in pairs front and back, the two front wheels are steering wheels, and the two rear wheels are power wheels. The rechargeable battery pack 26 is charged by means of an external power supply. As another embodiment of this patent, the controller can be connected to a wireless transceiver device to control the movement of the mobile load-bearing trolley 1 by means of remote video monitoring.

[0031] The lifting platform 7 is an inverted square trough structure. The inner bottom of the lifting platform 7 is fixedly connected to the output end of the vertical lifting electric push rod 8. The bottom of the vertical lifting electric push rod 8 is fixedly connected to the top of the mobile load-bearing trolley 1. The outer side of the lifting platform 7 is provided with a lifting guide bar 6. A guide limit sleeve box 4 with an opening on the top is set on the outer side of the lifting platform 7. The inner wall of the guide limit sleeve box 4 is provided with a guide groove 5 that matches the lifting guide bar 6. The supporting transfer flat plate 25 is horizontally fixedly installed on the outer side of the top of the loading bucket 9. The loading bucket 9 is provided with a storage bin 24. The outer side of the loading bucket 9 is provided with a baffle. The rear side and top of the loading bucket 9 are both open structures. The monitoring camera 10 is installed at the center of the baffle on the front side of the loading bucket 9.

[0032] Specifically, the lifting platform 7 is mounted on the inner side of the guide limit sleeve 4 to provide stable lifting limit and guide support, and the lifting guide strips 6 and guide grooves 5 that cooperate with each other are used to achieve stable operation of the lifting operation.

[0033] The setting direction of the limit baffle 18 is perpendicular to the setting direction of the support and transfer flat plate 25. The bottom of the limit baffle 18 and the outer side of the support and transfer flat plate 25 are an integrated structure, and the pusher electric push rod 19 is fixedly installed on the bracket 21 outside the limit baffle 18. The function of the limit baffle 18 is to implement corresponding side limit on the rod diameter that has been dumped on the support and transfer flat plate 25 during the harvesting process to prevent it from sliding and falling, and to form a corresponding connection with the push plate 20, so that the push plate 20 can move toward the top position of the loading bucket 9.

[0034] The width of the automatic cutting and harvesting box 11 is equal to the width of the supporting transfer flat plate 25. The automatic cutting and harvesting box 11 is fixedly connected to the outer wall of the loading bucket 9 through the fixed support block 28. The tobacco stem positioning through-hole groove 13 extends from the front side of the automatic cutting and harvesting box 11 to the rear side of the automatic cutting and harvesting box 11. The front side of the tobacco stem positioning through-hole groove 13 is an arc-shaped opening structure extending outward. The detection direction of the infrared probe 12 is toward the center position of the tobacco stem positioning through-hole groove 13. The angle between the outer end of the movable cutter head 14 and the horizontal plane is 30-45 degrees. The harvesting push rod 17 is an L-shaped rod structure that can rotate around the axis of the micro-rotating motor 16. The length of the upper horizontal rod of the harvesting push rod 17 is not less than the width of the automatic cutting and harvesting box 11. The cutter head telescopic electric push rod 23 is fixedly installed on the front side of the loading bucket 9 through the support rod 22.

[0035] Specifically, the width of the supporting transfer plate 25 can meet the needs of accommodating the upper tobacco leaves with stems after cutting. The tobacco stem positioning through-hole groove 13 adopts a fully open structure. The outer edge of the fixed support block 28 contacts the inner side of the tobacco stem positioning through-hole groove 13. The outer edge of the fixed support block 28 is also flush with the side of the supporting transfer plate 25. The top surface of the supporting transfer plate 25 is in the same plane as the top surface of the automatic cutting and harvesting box 11.

[0036] Specifically, the angle between the end of the movable cutter head 14 and the horizontal plane is 30-45 degrees. When the cutting operation is performed, the rod diameter can be cut at 30-45 degrees, which is convenient for later transfer and transportation, and is also beneficial to improving the preservation and transportation of the rod diameter after harvesting.

[0037] As a specific embodiment of the present invention: a harvesting method of a fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device, the method comprises the following steps: placing a mobile carrying trolley 1 between two rows of tobacco plants, automatically cutting off the harvesting box 11 corresponding to the planting position of the two rows of tobacco plants, and after the mobile carrying trolley 1 is running, the tobacco plant stem diameter is correspondingly clamped in the tobacco stem positioning through hole groove 13. After the infrared probe 12 senses that the tobacco plant stem diameter has entered, the cutter head telescopic electric push rod 23 is turned on, and the cutter head telescopic electric push rod 23 drives the movable cutter head 14 to move toward the cutting support seat 15, and the stem that penetrates into the tobacco stem positioning through hole groove 13 is cut at an angle of 30-45 degrees; While the cutting operation is in progress, the micro rotary motor 16 drives the harvesting push rod 17 to rotate, and the harvesting push rod 17 applies limited rotation pressure to the upper outer position of the stalk cut, and the cut upper tobacco leaves with stems are dumped and dropped onto the supporting and transporting flat plate 25. The pushing electric push rod 19 is started, and the push plate 20 moves toward the top of the loading bucket 9, pushing the upper tobacco leaves with stems on the supporting and transporting flat plate 25 into the loading bucket 9, completing the harvesting operation of the upper tobacco leaves with stems.

[0038] As another embodiment of the present invention, this embodiment adopts the setting operation of two automatic cutting-off harvesting boxes with independent height adjustment. Specifically, the mobile carrying trolley 1 is placed between two rows of tobacco plants, and the height adjustment of two independent transfer buckets 9 is achieved by adjusting two independently set lifting platforms 7, further achieving the setting operation of two automatic cutting-off harvesting boxes with independent height adjustment. It is used to meet the corresponding harvesting operation when the heights of tobacco plants on both sides of the mobile carrying trolley 1 are different.

[0039] After the two independently set automatic cutting and harvesting boxes 11 correspond to the planting positions of the two ridges of tobacco plants, after the mobile carrying trolley 1 is running, the tobacco plant stem diameter is correspondingly clamped in the tobacco stem positioning through hole groove 13. After the infrared probe 12 senses the entry of the tobacco plant stem diameter, the cutter head telescopic electric push rod 23 is turned on, and the cutter head telescopic electric push rod 23 drives the movable cutter head 14 to move toward the position of the cutting support seat 15, and the stems that penetrate into the tobacco stem positioning through hole groove 13 are cut at an angle of 30-45 degrees; while the cutting operation is running, the micro-rotating motor 16 drives the harvesting push rod 17 to rotate, and the harvesting push rod 17 applies a limited rotation pressure to the upper outer position of the stem cut, and the cut upper tobacco leaves with stems are dumped and dropped onto the supporting and transporting flat plate 25. The pusher electric push rod 19 is started, and the push plate 20 moves toward the top of the loading bucket 9, pushing the upper tobacco leaves with stems on the supporting and transporting flat plate 25 into the two independently set loading buckets 9, completing the harvesting operation of the upper tobacco leaves with stems.

[0040] As another embodiment of the present invention, this embodiment adopts independent height adjustment and independent width adjustment of two automatic cutting and harvesting boxes. Independent lateral width adjustment operations are respectively set above two independent lifting platforms, and the two independent lateral width adjustments are used in conjunction with the independent height adjustment operations to achieve corresponding adjustment of the irregular width and height of the rod diameters on both sides of the mobile carrying trolley 1.

[0041] After the two independently set automatic cutting and harvesting boxes 11 correspond to the planting positions of the two ridges of tobacco plants, after the mobile carrying trolley 1 is running, the tobacco plant stem diameter is correspondingly clamped in the tobacco stem positioning through hole groove 13. After the infrared probe 12 senses the entry of the tobacco plant stem diameter, the cutter head telescopic electric push rod 23 is turned on, and the cutter head telescopic electric push rod 23 drives the movable cutter head 14 to move toward the position of the cutting support seat 15, and the stems that penetrate into the tobacco stem positioning through hole groove 13 are cut at an angle of 30-45 degrees; while the cutting operation is running, the micro-rotating motor 16 drives the harvesting push rod 17 to rotate, and the harvesting push rod 17 applies a limited rotation pressure to the upper outer position of the stem cut, and the cut upper tobacco leaves with stems are dumped and dropped onto the supporting and transporting flat plate 25. The pusher electric push rod 19 is started, and the push plate 20 moves toward the top of the loading bucket 9, pushing the upper tobacco leaves with stems on the supporting and transporting flat plate 25 into the two independently set loading buckets 9, completing the harvesting operation of the upper tobacco leaves with stems.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic device for harvesting the upper tobacco leaves with stems, comprising a mobile carrying trolley (1), characterized in that: The top of the mobile carrying trolley (1) is connected to the loading bucket (9) via a lifting platform (7); a monitoring camera (10) is installed at the front of the loading bucket (9); supporting transfer plates (25) are fixedly installed on both sides of the top of the loading bucket (9); a limit baffle (18) is fixedly installed on the outer top of the supporting transfer plate (25); an electric push rod (19) for pushing materials is fixedly installed on the outer side of the limit baffle (18); the output end of the electric push rod (19) for pushing materials is connected to a push plate (20) movably installed on the inner side of the limit baffle (18); and an automatic cutting and harvesting mechanism is arranged on the front side of the supporting transfer plate (25) and the limit baffle (18).

2. The fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device according to claim 1, characterized in that: The automatic cutting and harvesting mechanism comprises an automatic cutting and harvesting box (11) fixedly mounted on the front side of a supporting and transporting flat plate (25); a tobacco stem positioning through-hole groove (13) is arranged in the middle of the automatic cutting and harvesting box (11); an infrared probe (12) is fixedly mounted on one side of the inner wall of the tobacco stem positioning through-hole groove (13); a movable cutter head (14) is arranged on the inner wall of the tobacco stem positioning through-hole groove (13) inside the infrared probe (12); a cutting support seat (15) mutually connected with the movable cutter head (14) is arranged on the other side of the inner wall of the tobacco stem positioning through-hole groove (13); and the automatic cutting and harvesting mechanism on the inner side of the tobacco stem positioning through-hole groove (13) is arranged. A through hole is transversely opened on the box (11), the inner end of the movable cutter head (14) is installed in the through hole, the outer end of the movable cutter head (14) is arranged in the tobacco stem positioning through hole groove (13), a cutter head telescopic electric push rod (23) with an output end located in the through hole is fixedly installed on the inner side surface of the automatic cutting and harvesting box (11), the output end of the cutter head telescopic electric push rod (23) is fixedly connected to the inner end of the movable cutter head (14), and a micro rotary motor (16) is longitudinally arranged on the automatic cutting and harvesting box (11) outside the tobacco stem positioning through hole groove (13), and a harvesting push rod (17) is installed on the top of the micro rotary motor (16).

3. The fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device according to claim 1, characterized in that: A travel motor (2) is arranged at the bottom of the mobile carrying trolley (1), and the output end of the travel motor (2) is connected to the wheel (3) via a shaft. A rechargeable battery pack (26) and a controller (27) are arranged inside the mobile carrying trolley (1).

4. The fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device according to claim 1, characterized in that: The lifting platform (7) is an inverted square groove structure. The inner bottom of the lifting platform (7) is fixedly connected to the output end of the vertical lifting electric push rod (8), and the bottom of the vertical lifting electric push rod (8) is fixedly connected to the top of the mobile carrying trolley (1). The outer side of the lifting platform (7) is provided with a lifting guide strip (6). A guide limit sleeve box (4) with an opening on the top is mounted on the outer side of the lifting platform (7), and the inner wall of the guide limit sleeve box (4) is provided with a guide groove (5) matching the lifting guide strip (6).

5. The fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device according to claim 1, characterized in that: The supporting transfer plate (25) is horizontally fixedly mounted on the top outer side of the loading bucket (9), a storage bin (24) is arranged inside the loading bucket (9), a baffle is arranged on the outer side of the loading bucket (9), the rear side and the top of the loading bucket (9) are both open structures, and the monitoring camera (10) is mounted at the center position of the baffle on the front side of the loading bucket (9).

6. The fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device according to claim 1, characterized in that: The setting direction of the limit baffle (18) is perpendicular to the setting direction of the supporting transfer plate (25), the bottom of the limit baffle (18) and the outer side of the supporting transfer plate (25) are an integrated structure, and the pusher electric push rod (19) is fixedly mounted on the bracket (21) outside the limit baffle (18).

7. The fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device according to claim 2, characterized in that: The width of the automatic cutting and collecting box (11) is equal to the width of the supporting transfer plate (25); the automatic cutting and collecting box (11) is fixedly connected to the outer wall of the loading bucket (9) via a fixed support block (28); the tobacco stem positioning through hole groove (13) extends from the front side of the automatic cutting and collecting box (11) to the rear side of the automatic cutting and collecting box (11); and the front side of the tobacco stem positioning through hole groove (13) is an arc-shaped opening structure extending outward.

8. The fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device according to claim 2, characterized in that: The detection direction of the infrared probe (12) is toward the center position of the tobacco stem positioning through hole groove (13), the angle between the outer end of the movable cutter head (14) and the horizontal plane is 30-45 degrees, the harvesting push rod (17) is an L-shaped rod structure that can rotate around the axis of the micro rotary motor (16), the length of the upper horizontal rod of the harvesting push rod (17) is not less than the width of the automatic cutting harvesting box (11), and the cutter head telescopic electric push rod (23) is fixedly installed on the front side of the loading bucket (9) through the support rod (22).

9. A harvesting method of the fully automatic flue-cured tobacco upper tobacco leaf with stem harvesting device as claimed in claim 2, characterized in that: The method comprises the following steps: S1, placing the mobile carrying trolley (1) between two rows of tobacco plants, automatically cutting off the harvesting box (11) corresponding to the planting positions of the two rows of tobacco plants, and after the mobile carrying trolley (1) is running, the tobacco plant stem diameter is correspondingly clamped in the tobacco stem positioning through hole groove (13); S2, after the infrared probe (12) senses that the tobacco stem diameter has entered, the cutter head telescopic electric push rod (23) is turned on, and the cutter head telescopic electric push rod (23) drives the movable cutter head (14) to move toward the cutting support seat (15), and the stem that has penetrated into the tobacco stem positioning through hole groove (13) is cut at an angle of 30-45 degrees; S3, while the cutting operation is in progress, the micro rotary motor (16) drives the harvesting push rod (17) to rotate, and the harvesting push rod (17) applies a limited rotation pressure to the upper outer position of the stalk cut, and the upper tobacco leaves with stems after cutting are dumped and dropped onto the supporting transfer plate (25); S4, starting the electric push rod (19) to push the push plate (20) toward the top of the loading bucket (9), pushing the upper tobacco leaves with stems and flue-cured tobacco on the supporting transfer plate (25) into the loading bucket (9), and completing the harvesting operation of the upper tobacco leaves with stems and flue-cured tobacco.

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