Asparagus lettuce harvesting and leaf removing all-in-one machine

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses an asparagus lettuce harvesting and leaf removing all-in-one machine which comprises a frame body, a grabbing structure for fixing agricultural products is movably arranged in the frame body, and a root cutting structure for cutting off the agricultural products is movably arranged below the grabbing structure in the frame body. A leaf removing structure for removing leaves is arranged at the end, away from the grabbing structure, of the frame body and corresponds to the grabbing structure. According to the asparagus lettuce picking device, the problems that asparagus lettuce picking efficiency is low and cost is high are solved, the asparagus lettuce can be better grabbed through mutual cooperation of the grabbing structure and the root cutting structure, then the asparagus lettuce is cut off through the root cutting structure, and therefore the picking effect is achieved; and secondly, the asparagus lettuce is lifted through rotation of the grabbing structure, leaves of the asparagus lettuce are removed through the leaf removing structure, then cleaning is more thorough, and the picking effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an integrated machine for harvesting and removing lettuce leaves. Background Art

[0002] With the continuous advancement of science and technology and the rapid development of modern agriculture, the traditional agricultural model is facing a series of challenges and changes, especially in the picking process. The traditional manual picking method can no longer meet the high-efficiency and precise needs of modern agriculture. Therefore, the research and development of an automatic lettuce harvester and leaf remover has important practical significance and broad application prospects. First of all, the continuous increase in labor costs is one of the key factors driving the development of an automatic lettuce harvester and leaf remover.

[0003] Traditional lettuce picking mainly relies on manual labor, which is not only inefficient, but also with the rising labor costs year by year, agricultural production costs are also increasing. Utility Model Content

[0004] The utility model aims to solve the problems of low efficiency and high cost of picking lettuce.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lettuce harvesting and leaf removing integrated machine, comprising: a frame main body;

[0007] A grabbing structure for fixing agricultural products is movably arranged in the frame body;

[0008] A root cutting structure for cutting off agricultural products is movably arranged below the grabbing structure in the frame body;

[0009] One end of the frame body away from the grabbing structure is provided with a leaf removal structure corresponding to the grabbing structure for removing leaves.

[0010] The lettuce harvesting and leaf removing integrated machine provided by the utility model:

[0011] The grabbing structure includes a steering gear, a gear connecting rod, a grabbing connecting rod and a rotating connecting rod;

[0012] One end of the rotating connecting rod is rotatably connected to the frame body, the other end of the rotating connecting rod is fixedly connected to the gear connecting rod, the gear connecting rod is meshedly connected to the grabbing connecting rod, and the upper part of the gear connecting rod is electrically connected to the steering gear.

[0013] The lettuce harvesting and leaf removing integrated machine provided by the utility model:

[0014] The root cutting structure comprises a supporting base, a cutting blade, a lead screw nut, a driving connecting rod, a first progressive motor and a first lead screw;

[0015] The support base is arranged below the grabbing structure and connected to the frame body, the cutting blade is rotatably connected to the lower end of the support base, the cutting blade is cross-arranged into a scissors structure, the other end of the cutting blade is movably connected to a driving connecting rod, the top of the driving connecting rod is connected to a lead screw nut, a first lead screw is threadedly embedded in the lead screw nut, and one end of the first lead screw is fixedly connected to a first progressive motor.

[0016] The lettuce harvesting and leaf removing integrated machine provided by the utility model:

[0017] The defoliation structure comprises a support bearing, an ejector block, a defoliation cylinder, a second screw rod and a second progressive motor;

[0018] The support bearing is fixedly arranged on the frame body, and a second screw rod is rotatably embedded between the support bearings. One end of the second screw rod is threadedly connected to the ejection block, and the other end is connected to the second progressive motor. The end of the second screw rod close to the second progressive motor is fixedly connected to the defoliation cylinder on the support bearing, and the defoliation cylinder and the ejection block are on the same horizontal line.

[0019] According to the utility model, the lettuce harvester and leaf remover provided: the end of the rotating connecting rod away from the grabbing connecting rod is rotatably embedded in the frame body, a plane connecting rod is rotatably embedded on the rotating connecting rod, one end of the plane connecting rod is rotatably connected to the extension connecting rod, one end of the extension connecting rod is rotatably embedded with a rotating block, and one end of the rotating block is rotatably connected to a DC reduction motor.

[0020] According to the utility model, the all-in-one lettuce harvester and leaf remover is provided with two rotating blocks, one end of one rotating block is rotatably connected to the extension connecting rod, and the other rotating block is rotatably connected to the push plate, the push plate is connected to the root cutting structure, and the rotating block drives the root cutting structure to move.

[0021] The utility model has the following beneficial effects:

[0022] (1) Using a grabbing structure, the grabbing structure includes a steering gear, a gear connecting rod, a grabbing connecting rod and a rotating connecting rod. The various components are combined to form a complete grabbing mechanical arm, and then the opening and closing of the grabbing connecting rod is controlled by the steering gear, and the agricultural products are grabbed at the same time, making the fixation of the agricultural products more stable. In addition, the rotating connecting rod, the plane connecting rod, the extension connecting rod and the rotating block are arranged to form a crank slider structure, which can be driven by the reduction motor to perform linear reciprocating motion, and at the same time the grabbing structure is rotated 90° to achieve the grabbing situation.

[0023] (2) A root cutting structure is used, which includes a support base, a cutting blade, a lead screw nut, a driving connecting rod, a first progressive motor and a first lead screw. The various components are assembled, and during the root cutting process, the linear motion of the crank slider drives the movement of the support base, and then the root cutting structure moves to a specified position, thereby driving the first lead screw to rotate under the action of the first progressive motor, and then the lead screw nut moves to drive the driving connecting rod and the cutting blade to open and close, thereby achieving a cutting effect.

[0024] (3) A defoliating structure is used. The defoliating structure includes a support bearing, an ejector block, a defoliating cylinder, a second screw and a second progressive motor. The components are assembled to form a complete defoliating structure. After the agricultural products are separated, the knife is rotated and lifted between the defoliating cylinder and the ejector block. At the same time, the ejector block is moved by the action of the second progressive motor. At the same time, the leaves of the picked agricultural products are removed by the defoliating cylinder, thereby better cleaning the agricultural products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0026] Figure 2 This is a top view of the structure of an embodiment of the utility model;

[0027] Figure 3 It is a side structural plan view of an embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of the root grabbing and cutting structure of the utility model embodiment;

[0029] Figure 5 It is a side plan view of the root grabbing and cutting structure of the embodiment of the utility model;

[0030] Figure 6 This is a rear view schematic diagram of grabbing and cutting roots according to an embodiment of the utility model;

[0031] Figure 7 This is a schematic diagram of the leaf removal structure of an embodiment of the utility model;

[0032] Figure 8 It is a bottom schematic diagram of the leaf removal structure of an embodiment of the utility model.

[0033] Legend:

[0034] 1. Framework body;

[0035] 2. Root cutting structure;

[0036] 20. Supporting bottom plate; 21. Cutting blade; 22. Screw nut; 23. Driving connecting rod; 24. First progressive motor; 25. First screw;

[0037] 3. Grasp the structure;

[0038] 30. Gear connecting rod; 31. Grasping connecting rod; 32. Steering gear; 33. Rotating connecting rod;

[0039] 4. Plane connecting rod;

[0040] 5. Extend the connecting rod;

[0041] 51. Push plate; 52. Rotating block;

[0042] 6. Leaf removal structure;

[0043] 60. Support bearing; 61. Push block; 62. Second screw rod; 63. De-leafing cylinder; 64. Second stepping motor. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] Combine the following Figure 1-Figure 8 The embodiment shown describes the technical solution of the utility model:

[0046] A lettuce harvesting and leaf removing machine comprises: a frame body 1, a grasping structure 3 for fixing agricultural products is movably arranged in the frame body 1, a root cutting structure 2 for cutting off agricultural products is movably arranged below the grasping structure 3 in the frame body 1, and a leaf removing structure 6 for removing leaves is arranged at one end of the frame body 1 away from the grasping structure 3 and corresponding to the grasping structure 3.

[0047] It can be understood that the frame body 1 is made of aluminum alloy and is combined to form a rectangular frame body 1, and a grabbing structure 3 and a root cutting structure 2 are arranged at the bottom of the frame body 1. The grabbing structure 3 and the root cutting structure 2 are synchronously operated when in use, performing linear reciprocating motion on the same horizontal plane, and realizing the actions of grabbing and root cutting at the same time.

[0048] Moreover, after the lettuce appears in front, the DC reduction motor is in forward transmission, the root cutting structure 2 moves forward, and at the same time, the mechanical claw arm part rotates 90°, parallel to the root cutting device, and ensures that the blade center and the mechanical claw center are in the same position, and then the mechanical claw servo 32 rotates 170° to achieve a tight grasp of the lettuce, and then the first stepper motor drives the lead screw nut forward, and drives the cutting blade 21 to open and close through the fork-shaped connecting rod to achieve cutting off the lettuce from the root. After completing the root cutting of the lettuce, the DC reduction motor is reversed, and the root cutting device is retracted through the crank slider mechanism. At the same time, the mechanical claw rotates 90° through the planar multi-rod mechanism, and ensures that it is in the same position as the center of the leaf removal device.

[0049] After the feeding process is completed, the stepper motor drives the screw nut 22 to drive the ejector pin to move forward against the lettuce, and the lettuce head enters the tube wall, and then the steering gear 32 controls the mechanical claw to slowly release the lettuce. Through the continuous movement of the ejector pin, the lettuce leaves will be pulled off the tube wall to complete the leaf removal of the lettuce. When the next lettuce is harvested, the above actions are repeated to realize the automatic operation of the machine.

[0050] The lettuce harvesting and leaf removing machine provided by the embodiment of the utility model has a grabbing structure 3, which includes a steering gear 32, a gear connecting rod 30, a grabbing connecting rod 31 and a rotating connecting rod 33. The various components are combined to form a complete grabbing mechanical arm, and then the steering gear 32 is used to control the opening and closing of the grabbing connecting rod 31, and the agricultural products are grabbed at the same time, so that the fixation of the agricultural products is more stable, and the rotating connecting rod 33, the plane connecting rod 4, the extension connecting rod 5 and the rotating block 52 are set to form a crank slider structure, which can be driven by the reduction motor to perform linear reciprocating motion, and at the same time the grabbing structure 3 is rotated 90° to achieve the grabbing situation.

[0051] Secondly, by setting up a root cutting structure 2, the root cutting structure 2 includes a supporting base, a cutting blade 21, a screw nut 22, a driving connecting rod 23, a first progressive motor 24 and a first screw 25, and the various components are assembled. At the same time, during the root cutting process, the linear motion of the crank slider drives the movement of the supporting base, and then the root cutting structure 2 moves to the specified position, thereby driving the first screw 25 to rotate under the action of the first progressive motor 24, and then the screw nut 22 moves to drive the driving connecting rod 23 and the cutting blade 21 to open and close, thereby achieving the cutting effect.

[0052] Finally, by setting up the leaf removal structure 6, the leaf removal structure 6 includes a supporting bearing 60, an ejection block, a leaf removal cylinder 63, a second screw 62 and a second progressive motor 64. The various components are assembled to form a complete leaf removal structure 6. After the agricultural products are separated, the knife is rotated and lifted between the leaf removal cylinder 63 and the ejection block. At the same time, the ejection block is moved by the action of the second progressive motor 64, and the leaves of the picked agricultural products are removed by the leaf removal cylinder 63, thereby better cleaning the agricultural products.

[0053] According to the lettuce harvesting and leafing machine provided by the embodiment of the utility model, the grabbing structure 3 includes a servo 32, a gear connecting rod 30, a grabbing connecting rod 31 and a rotating connecting rod 33. One end of the rotating connecting rod 33 is rotatably connected to the frame body 1, and the other end of the rotating connecting rod 33 is fixedly connected to the gear connecting rod 30. The gear connecting rod 30 is meshedly connected to the grabbing connecting rod 31, and the upper part of the gear connecting rod 30 is electrically connected to the servo 32.

[0054] Figure 4 and Figure 6 A lettuce harvesting and leaf removing machine is implemented in the invention. The grabbing structure 3 is formed by a combination of a steering gear 32, a gear connecting rod 30, a grabbing connecting rod 31 and a rotating connecting rod 33. One end of the rotating connecting rod 33 is rotatably connected to the frame body 1, and the other end of the rotating connecting rod 33 is fixedly connected to the gear connecting rod 30. The gear connecting rod 30 is meshedly connected to the grabbing connecting rod 31. The upper part of the gear connecting rod 30 is electrically connected to the steering gear 32. Infrared ultrasonic waves are arranged in the steering gear 32, and a single chip microcomputer controls the operation of the grabbing structure 3.

[0055] The lettuce harvesting and leaf removing machine provided in the embodiment of the utility model can better control the mechanical claws through the provided steering gear 32, the grabbing connecting rod 31 and the gear connecting rod 30, so that the mechanical claws can be opened and retracted, thereby better grabbing and fixing the agricultural products.

[0056] According to the lettuce harvesting and leaf removing machine provided by the embodiment of the utility model, the root cutting structure 2 includes a supporting base, a cutting blade 21, a screw nut 22, a driving connecting rod 23, a first progressive motor 24 and a first screw 25. The supporting base is arranged below the grasping structure 3 and is connected to the frame body 1. The cutting blade 21 is rotatably connected to the lower end of the supporting base. The cutting blade 21 is cross-arranged as a scissors structure. The other end of the cutting blade 21 is movably connected to the driving connecting rod 23. The driving connecting rod 23 is connected to the screw nut 22 above. The screw nut 22 is threaded with the first screw 25, and one end of the first screw 25 is fixedly connected to the first progressive motor 24.

[0057] Figure 4 and Figure 6A lettuce harvesting and leaf removing machine is implemented in the invention, wherein the root cutting structure 2 is composed of a supporting base, a cutting blade 21, a screw nut 22, a driving connecting rod 23, a first progressive motor 24 and a first screw 25. The supporting base is arranged below the grasping structure 3 and is connected to the frame body 1 at the same time, and the cutting blade 21 is rotatably connected to the lower end of the supporting base so that the cutting blade 21 can rotate, and two cutting blades 21 are arranged, and the two cutting blades 21 are cross-arranged into a scissors structure, and the other end of the cutting blade 21 is rotatably connected to the driving connecting rod 23, and the cutting blade 21 is driven to cut by the driving connecting rod 23, and is connected to the screw nut 22 above the driving connecting rod 23, and the screw nut 22 is moved by the first progressive motor 24 and the first screw 25.

[0058] The lettuce harvesting and leaf removing machine provided in the embodiment of the utility model can better combine the cutting blade 21, the screw nut 22, the driving connecting rod 23, the first screw 25 and the first progressive motor 24 together through the setting of the supporting base, so as to better drive the cutting blade 21 to cut the agricultural products and make cutting more convenient.

[0059] According to the lettuce harvesting and leaf removing machine provided by the embodiment of the utility model, the leaf removing structure 6 includes a support bearing 60, an ejector block, a leaf removing cylinder 63, a second screw rod 62 and a second progressive motor 64. The support bearing 60 is fixedly arranged on the frame body 1, and the second screw rod 62 is rotatably embedded between the support bearings 60. One end of the second screw rod 62 is threadedly connected to the ejector block, and the other end is connected to the second progressive motor 64. The end of the second screw rod 62 close to the second progressive motor 64 is fixedly connected to the leaf removing cylinder 63 on the support bearing 60, and the leaf removing cylinder 63 and the ejector block are on the same horizontal line.

[0060] Figure 7 and Figure 8 A lettuce harvesting and leaf removing machine is implemented in the invention. The leaf removing structure 6 is composed of a support bearing 60, an ejector block, a leaf removing cylinder 63, a second screw rod 62 and a second progressive motor 64. The support bearing 60 is provided with two groups, each group is two, and one group of support bearings 60 is integrally formed with the leaf removing cylinder 63, so that the second screw rod 62 is rotatably set in the support bearing 60, and the second screw rod 62 is fixed by the support bearing 60. At the same time, the screw rod close to one end of the leaf removing cylinder 63 is connected to the second progressive motor 64. At the same time, an ejector block is threadedly sleeved on the second screw rod 62 between the support bearings 60, and the leaf removing cylinder 63 is a circular cylinder structure with two ends passed through.

[0061] The all-in-one lettuce harvesting and leaf removing machine provided by the embodiment of the utility model has a leaf removing cylinder 63 and an ejector block, and the ejector block is driven by the second progressive motor 64 to move on the second screw rod 62, thereby pushing the agricultural products to be fixed in the leaf removing cylinder 63. At the same time, when the ejector block pushes the agricultural products to move, the leaves on the surface are removed by the leaf removing cylinder 63, thereby making leaf removal more convenient and quick.

[0062] According to the lettuce harvester and leaf remover provided by the embodiment of the utility model, the end of the rotating connecting rod 33 away from the grabbing connecting rod 31 is rotatably embedded in the frame body 1, and a plane connecting rod 4 is rotatably embedded on the rotating connecting rod 33. One end of the plane connecting rod 4 is rotatably connected to the extension connecting rod 5. One end of the extension connecting rod 5 is rotatably embedded with a rotating block 52, and one end of the rotating block 52 is rotatably connected to a DC reduction motor.

[0063] Figure 1 and Figure 6 A lettuce harvesting and leaf removing machine is implemented in the invention, wherein one end of the rotating link 33 away from the grabbing link 31 is rotatably embedded in the frame body 1, so that one end of the rotating link 33 is restricted from moving, and the middle of the rotating link 33 is rotatably connected with the plane link 4, so that the plane link 4 can pull the rotating link 33, so that it rotates at the connection of the frame body 1, and one end of the plane link 4 is rotatably connected with the extension link 5, so as to further pull the rotating link 33, and at the same time, the extension link 5 is rotatably connected with the rotating block 52, and the rotating block 52 is connected to the DC reduction motor, and at the same time, the extension link 5 and the rotating block 52 are combined to form a crank slider structure for reciprocating motion.

[0064] The lettuce harvesting and leaf removing machine provided by the embodiment of the utility model performs reciprocating motion through the crank slider structure formed by the combination, so that it can better push the extension connecting rod 5, the plane connecting rod 4 and the rotating connecting rod 33 to rotate, and then make the rotating connecting rod 33 rotate 90°, so that the mechanical claw is upright and horizontal, so as to better achieve the effect of grasping and lifting, and further facilitate root cutting and leaf removal.

[0065] According to the lettuce harvester and leaf remover provided by the embodiment of the utility model, two rotating blocks 52 are provided, one end of one rotating block 52 is rotatably connected to the extension connecting rod 5, and the other rotating block 52 is rotatably connected to the pushing plate 51, the pushing plate 51 is connected to the root cutting structure 2, and the rotating block 52 drives the root cutting structure 2 to move.

[0066] Figure 5 and Figure 6A lettuce harvesting and leaf removing machine is implemented in the invention, wherein two rotating blocks 52 are arranged, and the two rotating blocks 52 are respectively connected to the extension connecting rod 5 and the pushing plate 51, and the pushing plate 51 is connected to the root cutting structure 2, and the rotating block 52 and the extension connecting rod 5 and the rotating block 52 and the pushing plate 51 are all crank slider structures, thereby better driving the root cutting structure 2 to move horizontally, and enabling grasping and root cutting to be performed simultaneously, thereby making root cutting more convenient, and enabling better grasping and fixing of agricultural products when cutting roots.

[0067] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lettuce harvesting and leaf removing machine, characterized in that: include: Frame body (1); A grabbing structure (3) for fixing agricultural products is movably arranged in the frame body (1); A root cutting structure (2) for cutting off agricultural products is movably arranged below the grabbing structure (3) in the frame body (1); One end of the frame body (1) away from the grasping structure (3) is provided with a leaf removal structure (6) for removing leaves, corresponding to the grasping structure (3).

2. The lettuce harvesting and leaf removing machine according to claim 1, characterized in that: The grabbing structure (3) comprises a steering gear (32), a gear connecting rod (30), a grabbing connecting rod (31) and a rotating connecting rod (33); One end of the rotating connecting rod (33) is rotatably connected to the frame body (1), and the other end of the rotating connecting rod (33) is fixedly connected to the gear connecting rod (30). The gear connecting rod (30) is meshingly connected to the grabbing connecting rod (31), and the upper part of the gear connecting rod (30) is electrically connected to the steering gear (32).

3. The lettuce harvesting and leaf removing machine according to claim 1, characterized in that: The root cutting structure (2) comprises a supporting base, a cutting blade (21), a screw nut (22), a driving connecting rod (23), a first progressive motor (24) and a first screw (25); The support base is arranged below the grasping structure (3) and connected to the frame body (1); the cutting blade (21) is rotatably connected to the lower end of the support base; the cutting blade (21) is cross-arranged to form a scissors structure; the other end of the cutting blade (21) is movably connected to a driving connecting rod (23); the driving connecting rod (23) is connected to a screw nut (22) at the top; a first screw (25) is threadedly embedded in the screw nut (22); one end of the first screw (25) is fixedly connected to a first stepping motor (24).

4. The lettuce harvesting and leaf removing machine according to claim 1, characterized in that: The leaf removal structure (6) comprises a support bearing (60), an ejector block, a leaf removal cylinder (63), a second screw rod (62) and a second progressive motor (64); The support bearing (60) is fixedly arranged on the frame body (1), and a second screw rod (62) is rotatably embedded between the support bearings (60), one end of the second screw rod (62) is threadedly connected to the ejection block, and the other end is connected to the second progressive motor (64), and the defoliation cylinder (63) is fixedly connected to the support bearing (60) at one end of the second screw rod (62) close to the second progressive motor (64), and the defoliation cylinder (63) and the ejection block are on the same horizontal line.

5. The lettuce harvesting and leaf removing machine according to claim 2, characterized in that: One end of the rotating link (33) away from the grabbing link (31) is rotatably embedded in the frame body (1); a plane link (4) is rotatably embedded in the rotating link (33); one end of the plane link (4) is rotatably connected to an extension link (5); one end of the extension link (5) is rotatably embedded with a rotating block (52); one end of the rotating block (52) is rotatably connected to a DC reduction motor.

6. The lettuce harvesting and leaf removing machine according to claim 5, characterized in that: Two rotating blocks (52) are provided, and the two rotating blocks (52) are respectively connected to the extension connecting rod (5) and the pushing plate (51); the pushing plate (51) is connected to the root cutting structure (2); and the rotating blocks (52) drive the root cutting structure (2) to move.

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