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

Abstract

An asparagus lettuce harvesting and leaf removing all-in-one machine comprises a movable four-wheel machine table with kinetic energy, an asparagus lettuce stem collecting box is arranged at the rear end of the movable four-wheel machine table, an asparagus lettuce leaf removing and separating assembly is arranged at a feeding port of the asparagus lettuce stem collecting box, and a feeding port of the asparagus lettuce leaf removing and separating assembly is connected with one end of a conveying belt; the other end of the conveying belt extends to the front end of the movable four-wheel machine table, a clamping plate is further arranged at the other end of the conveying belt, and an asparagus lettuce cutting assembly is arranged at the position, located below the other end of the conveying belt, of the front end of the movable four-wheel machine table. According to the asparagus lettuce leaf-removing and separating device, asparagus lettuce is conveyed through the conveying belt with the push plate, the cutting tool and the horizontal conveying belt are connected through the double-output-shaft motor, the asparagus lettuce leaf-removing and separating assembly is arranged in the asparagus lettuce leaf-removing and separating assembly, and when the asparagus lettuce passes through the asparagus lettuce leaf-removing and separating assembly, the asparagus lettuce leaf-removing and separating assembly can adapt to the diameter of the asparagus lettuce; therefore, leaves of the asparagus lettuce are removed cleanly, and the epidermis of the asparagus lettuce is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural harvesters, in particular to a lettuce harvesting and leaf-removing integrated machine. Background Technique

[0002] China is the world's largest lettuce producer, and lettuce has a wide range of consumer groups in China and around the world. The market scale of lettuce has been growing steadily year by year. The Chinese government has always attached importance to agricultural development, provided strong agricultural policy support for vegetables such as lettuce, and has good market prospects. The main lettuce producing areas in China are in the northern regions, such as Shandong, Henan, Hebei, etc. In these regions, there are vast plains, providing geographical conditions for large-scale lettuce planting. Using lettuce harvesters can save a large amount of manpower and material resources compared with traditional manual harvesting, reduce the harvesting cost, improve the harvesting efficiency, and ensure the harvesting quality. Existing lettuce harvesters can meet the functions of lettuce cutting, leaf removal, collection, etc. Among them, leaf removal is carried out by cutting with a knife or a leaf-removing ring, resulting in incomplete leaf removal, inability to adaptively adjust according to the size of the lettuce stem, and the need for further leaf removal, which increases the harvesting cost. Therefore, we need a four-wheel mobile machine with a conveyor belt, self-provided kinetic energy, and a liftable cutting component, and a lettuce leaf-removing and separating component, which can remove the leaves of lettuce cleanly, protect the lettuce epidermis, and cause little damage. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a lettuce harvesting and leaf-removing integrated machine, which can harvest and remove the leaves of lettuce.

[0004] In order to achieve the above purposes, the utility model adopts the following technical solutions:

[0005] The utility model provides a lettuce harvesting and leaf-removing integrated machine, including a self-powered mobile four-wheel machine. A lettuce stem collecting box is arranged at the rear end of the self-powered mobile four-wheel machine. A lettuce leaf-removing and separating component is arranged at the feeding port of the lettuce stem collecting box. One end of a conveyor belt is connected to the feeding port of the lettuce leaf-removing and separating component, and the other end of the conveyor belt extends to the front end of the self-powered mobile four-wheel machine. A clamping plate is also arranged at the other end of the conveyor belt. A lettuce cutting component is arranged below the other end of the conveyor belt at the front end of the self-powered mobile four-wheel machine.

[0006] Further, the lettuce leaf-removing and separating component includes a front ring, a rear ring, a front block, a rear block, and a spring ring. A plurality of convex blocks are annularly arranged on the rear ring. A front block guiding groove is opened on one side of the convex block, and a rear block guiding groove is opened on the other side of the convex block. The rear block guiding groove is located below the front block guiding groove. Both sides of the front block and the rear block have convex extensions for inserting into the front block guiding groove and the rear block guiding groove. Grooves for winding the spring ring are opened at the rear ends of the convex block, the front block, and the rear block. The front ring is arranged on the convex block.

[0007] Furthermore, the lettuce cutting assembly includes a double-output shaft motor providing lifting power and a cutter for cutting lettuce. One end of the double-output shaft motor is connected to the cutter through a quick-return mechanism. A gear is arranged on the output shaft at the other end of the double-output shaft motor, and the gear is connected to the gear of the conveyor belt through a gear chain.

[0008] Furthermore, partitions are arranged at both ends and in the middle of the conveyor belt. Pushing plates for pushing the lettuce to be conveyed upward are arranged at intervals on the conveyor belt. A lettuce positioning ring is arranged at the connection of the feed port of the lettuce leaf-removing and separating assembly and one end of the conveyor belt.

[0009] Furthermore, a lifting mechanism for lifting the machine platform is arranged below the machine platform of the movable four-wheel machine platform.

[0010] Furthermore, a leaf collection box is also arranged on the front side of the lettuce stem collection box on the movable four-wheel machine platform. The feed port of the leaf collection box is located below the lettuce leaf-removing and separating assembly.

[0011] The beneficial effects of the present utility model are as follows: The transportation of lettuce is carried out through a conveyor belt with pushing plates, which can avoid damage to the surface of lettuce caused by excessive clamping force or extrusion force. A double-output shaft motor is used to realize the connection between the cutting tool and the horizontal conveyor belt. The motor is connected to the cutter through a quick-return mechanism, converting the rotational motion of the motor shaft into the linear motion of the cutter. A lettuce leaf-removing and separating assembly is arranged inside. When the lettuce passes through the lettuce leaf-removing and separating assembly, the lettuce leaf-removing and separating assembly can adapt according to the diameter of the lettuce, so that the lettuce is de-leafed cleanly, the surface of the lettuce is protected, and the damage is small. The harvesting of lettuce is driven by a self-powered movable four-wheel machine platform. Description of the Drawings

[0012] Figure 1 is the structural schematic diagram of the present utility model Figure 1 .

[0013] Figure 2 is the structural schematic diagram of the present utility model Figure 2 .

[0014] Figure 3 is the schematic diagram of the lettuce pushing card board.

[0015] Figure 4 is the schematic diagram of the card board, spring hinge and stop block preventing the lettuce from tilting forward.

[0016] Figure 5 is the structural schematic diagram of the lettuce leaf-removing and separating assembly.

[0017] Figure 6 is the structural sectional view of the lettuce leaf-removing and separating assembly.

[0018] Figure 7 It is a schematic structural diagram of a lettuce cutting assembly.

[0019] Figure 8 It is a right view of the connection between the conveyor belt and the double-output shaft motor.

[0020] Figure 9 It is a connection structure diagram of the cutter, conveyor belt, and double-output shaft motor.

[0021] Figure 10 It is a schematic diagram of the lifting mechanism.

[0022] In the figure, 1 - movable four-wheel machine platform, 2 - lettuce stem collection box, 3 - leaf collection box, 4 - lettuce leaf-removing and separating assembly, 401 - front ring, 402 - rear ring, 403 - front block, 404 - rear block, 405 - spring ring, 406 - front block guide groove, 407 - rear block guide groove, 408 - groove, 5 - conveyor belt, 6 - clamping plate, 7 - lettuce cutting assembly, 701 - double-output shaft motor, 702 - cutter, 8 - spring hinge, 9 - stop block, 10 - rotating rod, 11 - connecting rod, 12 - pushing rod, 13 - gear, 14 - gear chain, 15 - partition board, 16 - pushing plate, 17 - lettuce positioning ring, 18 - lifting mechanism. Specific implementation mode

[0023] The following further describes the present utility model in conjunction with the accompanying drawings.

[0024] Please refer to Figures 1 to 10 , the present utility model provides an embodiment:

[0025] Please refer to Figure 1 , Figure 2 and Figure 4 , a lettuce harvesting and leaf-removing integrated machine, including a self-powered movable four-wheel machine platform 1, a lettuce stem collection box 2 is arranged at the rear end of the movable four-wheel machine platform 1, a lettuce leaf-removing and separating assembly 4 is arranged at the feeding port of the lettuce stem collection box 2, the feeding port of the lettuce leaf-removing and separating assembly 4 is connected to one end of a conveyor belt 5, the other end of the conveyor belt 5 extends to the front end of the movable four-wheel machine platform 1, a clamping plate 6 is further arranged at the other end of the conveyor belt 5, and a lettuce cutting assembly 7 is arranged below the other end of the conveyor belt 5 at the front end of the movable four-wheel machine platform 1. The clamping plate 6 is also provided with a spring hinge 8 and a stop block 9 to prevent the lettuce from tipping in the opposite direction of the conveyor belt 5 when being cut.

[0026] Please refer to Figure 2 , Figure 5 and Figure 6, the lettuce leaf removal and separation component 4 includes a front ring 401, a rear ring 402, a front block 403, a rear block 404 and a spring ring 405. A plurality of bumps are annularly arranged on the rear ring 402. A front block guide groove 406 is formed on one side of the bump, and a rear block guide groove 407 is formed on the other side of the bump. The rear block guide groove 407 is located below the front block guide groove 406; both sides of the front block 403 and the rear block 404 have convex extensions for inserting into the front block guide groove 406 and the rear block guide groove 407. Grooves 408 for winding the spring ring 405 are formed at the rear ends of the bumps, the front block 403 and the rear block 404; the front ring 401 is arranged on the bump. The lettuce leaf removal and separation component 4 is composed of a front ring 401, a rear ring 402, a slidable front block 403, a slidable rear block 404 and a spring ring 405. The front block 403 and the rear block 404 are installed at intervals in the front block guide groove 406 and the rear block guide groove 407 of the rear ring 402, and the spring ring 405 is installed in the arc-shaped groove 408 on the outer diameter of the rear ring 402. When the lettuce is pushed towards the lettuce leaf removal and separation component 4, the lettuce leaf removal and separation component 4 adapts and contracts according to the diameter of the lettuce, allowing the lettuce stem to pass through smoothly while the leaves are removed.

[0027] Please refer to Figure 1 , Figure 7 , Figure 8 and Figure 9 , the lettuce cutting component 7 includes a double-output shaft motor 701 that provides lifting power and a cutter 702 for cutting lettuce. One end of the double-output shaft motor 701 is connected to the cutter 702 through a quick-return mechanism. A gear 13 is arranged on the output shaft at the other end of the double-output shaft motor 701, and the gear 13 is connected to the gear of the conveyor belt 5 through a gear chain 14. The quick-return mechanism includes a rotating rod 10 connected to the right shaft of the double-output shaft motor 701, a push rod 12, and a connecting rod 11 connecting the rotating rod and the push rod. The right shaft of the double-output shaft motor 701 drives the rotating rod 10 to rotate counterclockwise. The rotating rod 10 drives the connecting rod 11 to swing left and right. The connecting rod 11 drives the push rod 12 to perform horizontal reciprocating linear motion. The horizontal reciprocating linear motion of the push rod 12 drives the cutter 702 to push out and retract, finally converting the rotary motion of the motor into the quick-return reciprocating linear motion of the cutter 702.

[0028] Please refer to Figure 2 , partitions 15 are arranged at both ends and in the middle of the conveyor belt 5. Pusher plates 16 for pushing the lettuce to be conveyed upward are arranged at intervals on the conveyor belt 5. A lettuce positioning ring 17 is arranged at the connection between the feeding port of the lettuce leaf removal and separation component 4 and one end of the conveyor belt 5. After the lettuce falls onto the conveyor belt 5, due to the friction between the lettuce and the conveyor belt 5 and the thrust of the pusher plate 16 on the root of the lettuce, the lettuce is conveyed upward on the conveyor belt 5 and is positioned by the partition 16. The lettuce positioning ring 17 guides the lettuce to enter the lettuce leaf removal and separation component 4 vertically, playing a guiding role.

[0029] Please refer to Figure 10, a lifting mechanism 18 capable of lifting the machine platform is provided below the machine platform on the movable four-wheel machine platform 1.

[0030] Please refer to Figure 1 , a leaf collection box 3 is further provided on the front side of the lettuce stem collection box 2 on the movable four-wheel machine platform 1, and the feed inlet of the leaf collection box 3 is located below the lettuce leaf removal and separation assembly 4.

[0031] Working principle: Through the Internet of Things mobile phone control platform, the harvester is controlled to reach the harvesting location. According to the ridge height of lettuce planting, the lifting mechanism 18 is controlled to adjust the ground clearance of the cutting knife 702. The double-output shaft motor 701 is started to drive the cutting knife 702 to perform a cutting linear motion and the conveyor belt 5 to rotate, and the harvester is controlled to move forward. When the ridge height changes, the ground clearance of the cutting knife 702 is adjusted in real time by controlling the lifting mechanism 18. According to the forward movement speed of the harvester and the plant spacing of lettuce, the speed gear of the double-output shaft motor 701 is adjusted to match the forward speed, preventing the cutting knife 702 from idling and the conveyor belt 5 from idling due to too fast rotation speed of the double-output shaft motor 701, and also preventing the lettuce from piling up or being damaged due to too slow rotation speed of the double-output shaft motor 701. When cutting lettuce, the cutting knife 702 is pushed out for cutting. Using inertia, the lettuce falls towards the conveyor belt 5, and the lettuce is conveyed by the push plate 16 on the conveyor belt 5. After being positioned by the partition plate 15, the lettuce leaf removal and separation assembly 4 completes leaf removal. The leaves are collected in the leaf collection box 3 below the lettuce leaf removal and separation assembly 4 due to gravity and the downward pressure of the push plate 16, and the lettuce stems are collected in the lettuce stem collection box 2 behind the leaf collection box 3, completing the harvesting and leaf removal of lettuce.

Claims

1. A lettuce harvesting and leaf-removing integrated machine, characterized in that: It includes a movable four-wheel machine platform with self-provided kinetic energy. A lettuce stem collecting box is arranged at the rear end of the movable four-wheel machine platform. A lettuce leaf-removing and separating component is arranged at the feed inlet of the lettuce stem collecting box. The feed inlet of the lettuce leaf-removing and separating component is connected to one end of a conveyor belt, and the other end of the conveyor belt extends to the front end of the movable four-wheel machine platform. A clamping plate is also arranged at the other end of the conveyor belt. A lettuce cutting component is arranged below the other end of the conveyor belt at the front end of the movable four-wheel machine platform.

2. The lettuce harvesting and leaf-removing integrated machine according to claim 1, characterized in that: The lettuce leaf-removing and separating component includes a front ring, a rear ring, a front block, a rear block and a spring ring. A plurality of convex blocks are annularly arranged on the rear ring. A front block guiding groove is opened on one side of the convex block, and a rear block guiding groove is opened on the other side of the convex block. The rear block guiding groove is located below the front block guiding groove. Both sides of the front block and the rear block have convex extensions for inserting into the front block guiding groove and the rear block guiding groove. Grooves for winding the spring ring are opened at the rear ends of the convex block, the front block and the rear block. The front ring is arranged on the convex block.

3. The one-piece lettuce harvesting and defoliating machine according to claim 1, characterized in that: The lettuce cutting component includes a double-output shaft motor providing lifting power and a cutter for cutting lettuce. One end of the double-output shaft motor is connected to the cutter through a quick-return mechanism. A gear is arranged on the output shaft at the other end of the double-output shaft motor, and the gear is connected to the gear of the conveyor belt through a gear chain.

4. The lettuce harvesting and leaf-removing integrated machine according to claim 1, wherein: Partition plates are arranged at both ends and in the middle of the conveyor belt. Pushing plates for pushing the lettuce to be conveyed upward are arranged at intervals on the conveyor belt. A lettuce positioning ring is arranged at the connection between the feed inlet of the lettuce leaf-removing and separating component and one end of the conveyor belt.

5. A lettuce harvesting and defoliating integrated machine according to claim 1, characterized in that: A lifting mechanism for lifting the machine platform is arranged below the machine platform on the movable four-wheel machine platform.

6. The one - machine for harvesting lettuce and removing its leaves according to claim 1, wherein: A leaf collecting box is also arranged on the movable four-wheel machine platform at the front side of the lettuce stem collecting box. The feed inlet of the leaf collecting box is located below the lettuce leaf-removing and separating component.

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