An integrated machine for planting and harvesting lettuce

Abstract

The application relates to the technical field of agricultural machinery, and provides a lettuce planting and harvesting integrated machine, which comprises a vehicle frame, a ditching mechanism, a seedling feeding mechanism, a soil covering mechanism, a root removing mechanism, a leaf removing mechanism, a stacking mechanism and a box changing mechanism; the ditching mechanism, the seedling feeding mechanism and the soil covering mechanism can complete the planting operation of the lettuce; and the root removing mechanism, the leaf removing mechanism, the stacking mechanism and the box changing mechanism can complete the harvesting operation of the lettuce. The functions of planting, harvesting, root removing, leaf removing and boxing are integrated, the troubles of separate operation of different links are avoided, the labor intensity of farmers is reduced through cooperation with automatic control, the labor cost is reduced, meanwhile, the improvement of automation and intelligence greatly improves the production efficiency of the lettuce.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to an integrated machine for planting and harvesting lettuce. Background Technology

[0002] Lettuce, a plant of the genus Lactuca in the family Asteraceae, is a variety of lettuce, including white lettuce, pointed-leaf lettuce, and variegated lettuce. It is cool in nature, sweet and slightly bitter in taste, and has heat-clearing, diuretic, blood-activating, and lactation-promoting effects. Rich in vitamins B and C, carotene, and trace elements such as potassium, magnesium, and calcium, moderate consumption of lettuce can help promote digestion and increase appetite. Lettuce can regulate the nervous system, promote intestinal peristalsis, and improve constipation, making it popular among consumers. Lettuce is generally planted with a row spacing of 33 cm and a plant spacing of 30 cm. Seedlings are graded and transplanted, and the growth cycle is approximately 80-100 days. When the soil temperature is suitable, the seeds are evenly sown in furrows about 3-4 cm deep and covered with a thin layer of soil. Mature lettuce stems are 20-30 cm long and 4-8 cm in diameter.

[0003] In the current field of agricultural machinery, lettuce planting and harvesting equipment generally faces the problem of limited functionality. These devices often can only complete specific tasks, such as simple ditching or harvesting, lacking automated solutions that integrate the planting and harvesting processes. This limitation forces farmers to rely on multiple machines during planting and harvesting, increasing the complexity of operations, the demand for labor, and raising farmers' production costs. Due to the lack of automated control, farmers have to perform a large amount of manual assistance when planting and harvesting lettuce. This not only increases labor intensity but also prolongs working hours and reduces efficiency, especially during hot or rainy seasons when the difficulty of manual operations further increases, severely impacting farmers' working conditions. The lack of continuity in each stage of planting and harvesting significantly increases farmers' workload, making the entire process cumbersome and time-consuming. This not only increases farmers' labor burden but also limits the improvement of agricultural production efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an integrated lettuce planting and harvesting machine, comprising: a frame, a ditching mechanism, a seedling delivery mechanism, a soil covering mechanism, a root removal mechanism, a leaf removal mechanism, a stacking mechanism, and a box changing mechanism.

[0005] The trenching mechanism is installed at the front right of the vehicle frame and includes:

[0006] Aa drive unit, Aa drive unit is fixedly connected to the vehicle frame;

[0007] The Aa lead screw is located below the Aa drive unit and is vertically rotatably connected to the frame. The top of the Aa lead screw is fixedly connected to the output shaft of the Aa drive unit.

[0008] The Ab screw is located to the right of the Aa screw and is vertically rotatably connected to the frame. The Ab screw and the Aa screw rotate synchronously through a chain meshed at their upper ends.

[0009] Link A achieves lifting by engaging with lead screws Aa and Ab at its left and right ends respectively.

[0010] The Ab drive unit is fixedly connected to the bottom end of the A link;

[0011] The trenching wheel is fixedly connected to the output shaft of the Ab drive component, and is driven to rotate by the Ab drive component.

[0012] The seedling delivery mechanism is installed on the right side of the vehicle frame and includes:

[0013] Ba drive unit, Ba drive unit is fixedly connected to the upper right side of the frame;

[0014] The push plate is fixedly connected to the Ba drive unit;

[0015] The seedling tray is placed on the frame with its long side parallel to the push plate. The push plate is driven by the Ba drive unit to transport the lettuce seedlings on the seedling tray.

[0016] The Bb drive unit is fixedly connected to the upper right front of the frame, and its output shaft is fixedly connected to the seedling delivery platform. The Bb drive unit is responsible for driving the rotation of the seedling delivery platform.

[0017] The Bf drive unit is located below the seedling delivery platform and is fixedly connected to the frame. Its output shaft is fixedly connected to the slide, which is located at the lower left of the seedling delivery platform. An inclined vertical block is fixedly connected to its right end. The Bf drive unit is responsible for driving the rotation of the slide.

[0018] The Bc drive unit is fixedly connected to the upper right rear of the frame, and its output shaft is fixedly connected to the cam.

[0019] The push rod, located above and behind the chute and slidably mounted on the frame, is used to push the lettuce seedlings on the seedling tray;

[0020] Link B, the rear end of link B is movably connected to the cam, and the front end is movably connected to the push rod;

[0021] The gear set, located in front of the chute, consists of multiple gears rotatably connected to the frame. The Da track meshes with each gear of the gear set. After the lettuce seedlings are pushed onto the Da track, they can be transported to the ditch.

[0022] The Bd drive unit is fixedly connected to the front right side of the frame. Its output shaft is fixedly connected to the gear on the right side of the gear set, and is responsible for driving the rotation of the gear set.

[0023] The recycling platform, located behind the chute, is used to collect empty seedling boxes.

[0024] The backfilling mechanism is installed on the left side of the trenching mechanism and includes:

[0025] Cylinder, the base of the cylinder is rotatably connected to the frame;

[0026] The support column is located on the left side of the cylinder, and its bottom end is rotatably connected to the frame.

[0027] The connecting frame has two soil-covering wheels rotatably connected to its left end, and its right side is fixedly connected to the top of the support column. The right end of the connecting frame is also rotatably connected to the cylinder telescopic rod.

[0028] The root removal mechanism is installed at the left rear of the frame and includes:

[0029] The Da drive unit and the Db drive unit are fixedly connected to the frame in parallel front and rear, and their output shafts are fixedly connected to the Da gear and the Db gear respectively.

[0030] Gears Dc and Dd are located to the left of gear Da and are rotatably connected to the frame. Gear Dd is located to the left of gear Db and is rotatably connected to the frame. Track Da meshes between gears Da and Dc, and track Db meshes between gears Db and Dd. There is a gap between track Da and track Db for clamping lettuce.

[0031] The Dc drive unit is located to the lower left of the gap between the Da track and the Db track and is fixedly connected to the frame. Its output shaft is fixedly connected to the cutter. The Dc drive unit drives the cutter to rotate and cut the root of the lettuce.

[0032] The stop block is located to the lower right of the gap between the Da track and the Db track and is fixedly connected to the frame. It is responsible for changing the lettuce with the cut root from a vertical position to an inclined position.

[0033] The leaf removal mechanism is installed on the right side of the root removal mechanism and includes:

[0034] The E-drive component is fixedly connected to the left rear of the chassis.

[0035] E-screws, the right ends of the two E-screws are rotatably connected to the frame, and the left ends of the two E-screws are driven to rotate by the E-drive component;

[0036] A support frame spans across and engages with two E-lead screws;

[0037] The pusher block is fixedly connected to the top of the support frame and is used to push the lettuce to remove the leaves;

[0038] The track plate is fixedly connected to the frame on both sides of the push block. The track plate is set at an angle so that the lettuce is pushed from left to right.

[0039] The leaf removal ring is fixedly connected to the frame on the right side of the track plate and is used to remove leaves from lettuce.

[0040] The stacking mechanism is installed in the middle of the chassis and includes:

[0041] The upper rear of the middle of the frame is equipped with two gear shafts that are rotatably connected to the frame. The Fa gear and Fb gear are fixedly connected to the rear gear shaft, and the Fc gear and Fd gear are fixedly connected to the front gear shaft. The Fa gear and Fc gear mesh with the Fa track, and the Fb gear and Fd gear mesh with the Fb track.

[0042] The Fa drive unit is fixedly connected to the rear of the middle of the frame and drives the rear gear shaft to rotate through a meshing chain.

[0043] The Fb drive unit is fixedly connected to the vehicle frame;

[0044] The box pusher is fixedly connected to the Fb drive unit.

[0045] The skateboard is fixedly connected to the front of the middle of the frame at the rear end, and tilts downwards at the front end, allowing the stacked collection boxes to slide down.

[0046] The gearbox changing mechanism is installed at the front left of the chassis and includes:

[0047] G-drive components are fixedly connected to the vehicle frame.

[0048] The gear shaft is rotatably connected to the frame and is driven to rotate by the G drive component.

[0049] G-gears, two G-gears are fixedly connected to the gear shaft;

[0050] The pusher rods are two rods placed on the frame below the gear shaft. The upper end of the pusher rods is fixedly connected to the rack, which meshes with the G gear.

[0051] Furthermore, connecting rod A has through screw holes at both ends, and connecting rod A engages with lead screw Aa and lead screw Ab through the two screw holes respectively; the output axis of the Ab drive is tilted to the left.

[0052] Furthermore, the Ba drive unit consists of a rack and a motor gear set, with the rack fixedly connected to the upper right side of the frame and the motor gear set meshing with the rack; the Bc drive unit consists of a motor, a worm gear, and a worm, with the motor fixedly connected to the upper right rear of the frame, the worm fixedly connected to the motor output shaft, and the worm gear rotatably connected to the frame and meshing with the worm.

[0053] Furthermore, a limiting plate is fixedly connected to the front end of the seedling delivery platform; a limiting column is fixedly connected to the left end of the chute to limit the sliding seedling box; and a Ba baffle is fixedly connected to the front end of the chute to guide the sliding seedling box.

[0054] Furthermore, a funnel is provided on the right side of the gear set, which is fixedly connected to the frame. The funnel allows the lettuce seedlings to fall into the ditch more accurately. A Be drive unit is fixedly connected to the frame on the left side of the gear set, and its output shaft is fixedly connected to the Bb baffle. The Be drive unit drives the Bb baffle to open and close up and down.

[0055] Furthermore, the two covering wheels form an angle with the right side being larger than the left side.

[0056] Furthermore, the tool contains three blades, each with serrations.

[0057] Furthermore, the E drive component is a motor fixedly connected to the left rear of the frame, with the motor output shaft and the left ends of the two E lead screws meshing with the chain; the bottom of the support frame has through screw holes, and the support frame meshes with the two E lead screws through the two screw holes.

[0058] Furthermore, the Fb drive unit consists of a rack and a motor gear set. The rack is fixedly connected to the frame, and the motor gear set meshes with the rack. The left side of the push box frame has an opening, and the distance before and after the opening is the width of the lettuce collection box.

[0059] Furthermore, the G drive unit is a motor fixedly connected to the frame, and a chain meshes between the motor output shaft and the rear end of the gear shaft.

[0060] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0061] This invention's integrated lettuce planting and harvesting machine automates the planting process by integrating functions such as ditching, seedling delivery, and soil covering; and automates the harvesting process by integrating functions such as root removal, leaf removal, stacking and boxing, and box changing, greatly simplifying the planting and harvesting process of lettuce. Compared with traditional step-by-step operations, this machine achieves automated control, effectively reducing the labor burden on farmers and significantly lowering labor costs. Furthermore, the machine's automated and intelligent design significantly improves lettuce production efficiency, bringing great improvements to agricultural production. Through this integrated solution, farmers can more easily complete the planting and harvesting of lettuce, thereby improving the overall efficiency and economic benefits of agricultural production. Attached Figure Description

[0062] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0063] Figure 1 This is a schematic diagram of a lettuce planting and harvesting integrated machine.

[0064] Figure 2 This is a schematic diagram of the trenching mechanism;

[0065] Figure 3 This is a schematic diagram of the seedling delivery mechanism;

[0066] Figure 4 This is a partial structural diagram of the seedling delivery mechanism;

[0067] Figure 5 This is a schematic diagram of the soil covering mechanism;

[0068] Figure 6 This is a schematic diagram of the root removal mechanism and leaf removal mechanism. Figure 1 ;

[0069] Figure 7 This is a schematic diagram of the root removal mechanism and leaf removal mechanism. Figure 2 ;

[0070] Figure 8 This is a schematic diagram of the stacking mechanism;

[0071] Figure 9 This is a schematic diagram of the box-changing mechanism.

[0072] The labels in the attached diagram are as follows: 1. Frame; 2. Trenching mechanism; 201. Aa drive component; 202. Aa lead screw; 203. Ab lead screw; 204. Chain; 205. A connecting rod; 206. Ab drive component; 207. Trenching wheel; 3. Seedling delivery mechanism; 301. Ba drive component; 302. Push plate; 303. Seedling box; 304. Seedling delivery platform; 305. Bb drive component; 306. Slide chute; 307. Ba baffle; 308. Bb baffle; 309, Bc drive unit; 310, cam; 311, B connecting rod; 312, push rod; 313, Bd drive unit; 314, gear set; 315, B track; 316, funnel; 317, recovery platform; 318, Be drive unit; 319, Bf drive unit; 320, limit plate; 321, limit post; 4, soil covering mechanism; 401, cylinder; 402, support column; 403, connecting frame; 404, soil covering wheel. 5. Root removal mechanism; 501. Da drive component; 502. Db drive component; 503. Da gear; 504. Db gear; 505. Dc gear; 506. Dd gear; 507. Da track; 508. Db track; 509. Cutting tool; 510. Stop block; 511. Dc drive component; 6. Leaf removal mechanism; 601. E drive component; 602. E lead screw; 603. Support frame; 604. Push block; 605. Track plate 606. Leaf ring; 7. Stacking mechanism; 701. Fa drive; 702. Fa gear; 703. Fb gear; 704. Fc gear; 705. Fd gear; 706. Fa track; 707. Fb track; 708. Fb drive; 709. Box pusher; 710. Slide plate; 8. Box changing mechanism; 801. G drive; 802. Gear shaft; 803. Gear; 804. Rack; 805. Box pusher rod. Detailed Implementation

[0073] To make the technical means, creative features, objectives and effects of this invention easier to understand, the technical solutions in the specific embodiments of this invention are described clearly and completely below to further illustrate this invention. Obviously, the specific embodiments described are only a part of the embodiments of this invention, and not all of them.

[0074] like Figure 1 As shown, the present invention provides an integrated lettuce planting and harvesting machine, comprising a frame 1, a ditching mechanism 2, a seedling feeding mechanism 3, a soil covering mechanism 4, a root removal mechanism 5, a leaf removal mechanism 6, a stacking mechanism 7, and a box changing mechanism 8; the planting of lettuce is mainly completed by the ditching mechanism 2, the seedling feeding mechanism 3, and the soil covering mechanism 4, and the harvesting of lettuce is mainly completed by the root removal mechanism 5, the leaf removal mechanism 6, the stacking mechanism 7, and the box changing mechanism 8.

[0075] The trenching mechanism 2 is installed at the front right side of the frame 1, and its structure is as follows: Figure 2As shown, it includes: an Aa drive unit 201, which is fixedly connected to the frame 1; an Aa lead screw 202, which is located below the Aa drive unit 201 and vertically rotatably connected to the frame 1, with its top end fixedly connected to the output shaft of the Aa drive unit 201; an Ab lead screw 203, which is located to the right of the Aa lead screw 202 and vertically rotatably connected to the frame 1, with the Ab lead screw 203 and the Aa lead screw 202 rotating synchronously via a chain 204 meshing at their upper ends; and an A connecting rod 2. 05. Connector A 205 has through screw holes at both ends. Connector A 205 engages with lead screw Aa 202 and lead screw Ab 203 through the two screw holes to achieve lifting and lowering. Drive component Ab 206 is fixedly connected to the bottom end of connector A 205. To ensure that the groove has a certain width, the output shaft of drive component Ab 206 is tilted to the left. Grooving wheel 207 is fixedly connected to the output shaft of drive component Ab 206 and is driven to rotate by drive component Ab 206.

[0076] The seedling delivery mechanism 3 is installed on the right side of the frame 1, and its structure is as follows: Figures 3-4The system includes: a Ba drive unit 301, which consists of a rack and a motor gear set. The rack is fixedly connected to the upper right side of the frame 1, and the motor gear set meshes with the rack; a push plate 302, which is fixedly connected to the Ba drive unit 301; a seedling box 303, whose long side is parallel to the push plate 302 and placed on the frame 1. The Ba drive unit 301 drives the push plate 302 to transport the lettuce seedlings on the seedling box 303; and a Bb drive unit 305, which is fixedly connected to the upper right front side of the frame 1, and whose output shaft is fixedly connected to the seedling delivery platform 304. The seedling delivery platform 304 is fixedly connected to a limit plate 320 at its front end. A Bb drive unit 305 drives the rotation of the seedling delivery platform 304. A Bf drive unit 319 is located below the seedling delivery platform 304 and fixedly connected to the frame 1. Its output shaft is fixedly connected to a slide 306, which is located on the lower left side of the seedling delivery platform 304. An inclined upright block is fixedly connected to its right end, a limit post 321 is fixedly connected to its left end, and a Ba baffle 307 is fixedly connected to its front end. A recycling platform 317 is located at its rear for collecting empty seedling boxes 303. The Bf drive unit 319 drives the rotation of the seedling delivery platform 304. The rotation of the sliding groove 306; the Bc drive component 309, which consists of a motor, a worm gear, and a worm, with the motor fixedly connected to the upper right rear of the frame 1, the worm fixedly connected to the motor output shaft, the worm gear rotatably connected to the frame 1 and meshing with the worm, and the worm output shaft fixedly connected to the cam 310; the push rod 312, located above and behind the sliding groove 306 and slidably placed on the frame 1; the B connecting rod 311, with its rear end movably connected to the cam 310 and its front end movably connected to the push rod 312; and the gear set 314, located on the front side of the sliding groove 306, consisting of... Multiple gears are rotatably connected to the frame 1. Track B 315 meshes with each gear of gear set 314. Bd drive unit 313 is fixedly connected to the front right side of the frame 1. Its output shaft is fixedly connected to the gear on the right side of gear set 314, which is responsible for driving the rotation of gear set 314. A funnel 316 is provided on the right side of gear set 314 and is fixedly connected to the frame 1. Be drive unit 318 is fixedly connected to the frame 1 on the left side of gear set 314. Its output shaft is fixedly connected to Bb baffle 308. Be drive unit 318 drives Bb baffle 308 to open and close up and down.

[0077] The soil covering mechanism 4 is installed on the left side of the trenching mechanism 2, and its structure is as follows: Figure 5As shown, it includes: a cylinder 401, the base of which is rotatably connected to the frame 1; a support column 402, located to the left of the cylinder 401, with its bottom end rotatably connected to the frame 1; and a connecting frame 403, the left end of which is rotatably connected to two soil-covering wheels 404, which form an angle with the right side being larger than the left side. The right side of the connecting frame 403 is fixedly connected to the top of the support column 402, and the right end of the connecting frame 403 is rotatably connected to the telescopic rod of the cylinder 401.

[0078] When it is necessary to plant lettuce, the first step is to open a trench. The Aa drive component 201 drives the Aa lead screw 202 and the Ab lead screw 203 to rotate, which allows the A connecting rod 205, the Ab drive component 206 and the trenching wheel 207 to move in the vertical direction to open the trench. The user can also adjust the angle of the Ab drive component 206 to the left according to the required width of the trench.

[0079] After the trench is dug, the lettuce seedlings are placed in the seedling box 303. The Ba drive 301 drives the push plate 302 to push the seedling box 303 to the seedling delivery platform 304. The Bb drive 305 drives the seedling delivery platform 304 to rotate to the left. The angle of rotation is the same as the angle of inclination of the upright block fixedly connected to the right end of the slide 306. At the same time, the limiting post 321 makes the seedling box 303 tilted on the slide 306. Meanwhile, the Bc drive 309 drives the cam 310 to rotate, which in turn drives the B connecting rod 311 to push the push rod 312 forward, pushing the lettuce seedling on the push rod 312 into the B track 315. Under the action of the B track 315, the lettuce seedling is sent into the trench through the funnel 316.

[0080] After the lettuce seedlings are placed into the trench, cylinder 401 lowers the covering wheel 404 to ground level. As the machine moves, the friction of the ground causes the covering wheel 404 to rotate, gathering the surrounding soil into the trench, thus achieving the effect of covering the soil. This completes the lettuce planting operation.

[0081] The root removal mechanism 5 is installed at the left rear of the frame 1, and its structure is as follows: Figures 6-7As shown, the system includes: a Da drive unit 501 and a Db drive unit 502, which are fixedly connected to the frame 1 in parallel front and rear. Their output shafts are respectively fixedly connected to Da gear 503 and Db gear 504; a Dc gear 505 and a Dd gear 506, where Dc gear 505 is located to the left of Da gear 503 and rotatably connected to the frame 1, and Dd gear 506 is located to the left of Db gear 504 and rotatably connected to the frame 1. A Da track 507 meshes between Da gear 503 and Dc gear 505, and a Db track 508 meshes between Db gear 504 and Dd gear 506. A gap for clamping lettuce is provided between track 507 and track 508; Dc drive 511 is located to the lower left of the gap between track 507 and track 508 and is fixedly connected to the frame 1. Its output shaft is fixedly connected to a cutter 509, which contains three blades, each with serrations. The cutter 509 is driven by drive 511 to rotate and cut the root of the lettuce; a stop block 510 is located to the lower right of the gap between track 507 and track 508 and is fixedly connected to the frame 1. It is responsible for changing the lettuce with the cut root from a vertical position to an inclined position.

[0082] Leaf removal mechanism 6 is installed on the right side of root removal mechanism 5, and its structure is as follows: Figures 6-7 As shown, it includes: an E-drive unit 601, which is a motor fixedly connected to the left rear of the frame 1, with the motor output shaft meshing with a chain at the left ends of two E-lead screws 602; two E-lead screws 602, the right ends of which are rotatably connected to the frame 1, and the left ends of the two E-lead screws 602 are driven to rotate by the E-drive unit 601; and a support frame 603, which spans across the two E-lead screws 602, with a through screw hole at the bottom of the support frame 603. The lettuce is engaged with two lead screws 602 through two screw holes; a pusher 604 is fixedly connected to the top of the support frame 603 and is used to push the lettuce to remove leaves; a track plate 605 is fixedly connected to the frame 1 on both sides of the pusher 604 and is inclined so that the lettuce is pushed from left to right; a leaf removal ring 606 is fixedly connected to the frame 1 on the right side of the track plate 605 and is used to remove leaves from the lettuce.

[0083] The stacking mechanism 7 is installed in the middle of the frame 1, and its structure is as follows: Figure 8As shown, the vehicle includes: two gear shafts, front and rear, rotatably connected to the frame 1, located at the upper rear center of the frame 1; gears Fa 702 and Fb 703 are fixedly connected to the rear gear shafts; gears Fc 704 and Fd 705 are fixedly connected to the front gear shafts; gears Fa 702 and Fc 704 mesh with track Fa 706; and gears Fb 703 and Fd 705 mesh with track Fb 707; and a Fa drive unit 701, which is fixedly connected to the frame. 1. At the rear of the middle section, a rear gear shaft is driven to rotate via a meshing chain; Fb drive unit 708, which consists of a rack and a motor gear set, with the rack fixedly connected to the frame 1 and the motor gear set meshing with the rack; push box frame 709, which is fixedly connected to Fb drive unit 708, with an opening on the left side, the distance in front and behind the opening being the width of the lettuce collection box; slide plate 710, the rear end of which is fixedly connected to the front of the middle section of the frame 1, with the front end tilted downwards.

[0084] The gearbox changing mechanism 8 is installed at the front left of the frame 1, and its structure is as follows: Figure 9 As shown, it includes: a G drive unit 801, which is a motor fixedly connected to the frame 1; a gear shaft 802, which is rotatably connected to the frame 1 and is driven to rotate by the G drive unit 801; two G gears 803, which are fixedly connected to the gear shaft 802; and push-box rods 805, which are placed on the frame 1 below the gear shaft 802. The upper end of the push-box rods 805 is fixedly connected to a rack 804, which meshes with the G gears 803.

[0085] When it is time to harvest lettuce, the root removal operation is carried out first. The Da drive unit 501 and the Db drive unit 502 drive the Da track 507 and the Db track 508 to rotate in opposite directions to pull up the lettuce. When it is transported to the cutter 509, the Dc drive unit 511 drives the cutter 509 to rotate to complete the cutting of the lettuce root. When it is transported to the stop block 510, the stop block 510 presses against the lower end of the lettuce to change the lettuce from a vertical state to an inclined state. Then the lettuce falls between the two inclined track plates 605.

[0086] After the lettuce falls between the two inclined track plates 605, with its crown facing the leaf removal ring 606, the E drive component 601 drives the lead screw to rotate, causing the support frame 603 and the push block 604 to move to the right. The push block 604 pushes the lettuce toward the leaf removal ring 606. Since the aperture of the leaf removal ring 606 is slightly larger than the tender stem of the lettuce, and the leaves of the lettuce are spread out, the leaves can be removed when the lettuce passes through the leaf removal ring 606.

[0087] The lettuce, after its leaves have been removed, is pushed onto tracks Fa 706 and Fb 707. Driven by drive unit Fa 701, the two tracks rotate towards the pusher frame 709, feeding the lettuce into the collection box in the middle of the pusher frame 709. Once the collection box is full, drive unit Fb 708 drives the pusher frame 709 to push the full collection box towards the slide plate 710, where it slides down to the ground. This completes the harvesting of one box of lettuce.

[0088] Next, the pusher frame 709 moves backward, its opening aligning with the outlet of the box-changing mechanism 8. The G drive 801 drives the gear shaft 802 and the G gear 803 to rotate, thereby causing the rack 804 and the pusher rod 805 to move horizontally, thus pushing the collection box in the box-changing mechanism 8 into the pusher frame 709 to continue collecting lettuce.

[0089] The main technical features, basic principles, and related advantages of the present invention have been described above. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the concept or basic characteristics of the invention. Therefore, the above-described embodiments should be considered exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention.

[0090] Furthermore, it should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lettuce planting and harvesting integrated machine, characterized in that, The utility model relates to a kind of seedling transplanting machine, including: Frame (1), ditching mechanism (2), seedling feeding mechanism (3), covering mechanism (4), root removing mechanism (5), leaf removing mechanism (6), stacking mechanism (7) and box changing mechanism (8); Ditching mechanism (2) is installed in the right front of frame (1), including: Aa driving part (201), Aa driving part (201) is fixedly connected on frame (1); Aa lead screw (202), Aa lead screw (202) is located below Aa driving part (201) and vertically rotatably connected on frame (1), the top end of Aa lead screw (202) is fixedly connected with the output shaft of Aa driving part (201); Ab lead screw (203), Ab lead screw (203) is located right side of Aa lead screw (202) and vertically rotatably connected on frame (1), Ab lead screw (203) and Aa lead screw (202) are synchronous rotation by the chain (204) of meshing through upper end; A connecting rod (205), A connecting rod (205) is meshed by left and right ends with Aa lead screw (202), Ab lead screw (203) to realize lifting; Ab driving part (206), Ab driving part (206) is fixedly connected at the bottom end of A connecting rod (205); Ditching wheel (207), ditching wheel (207) is fixedly connected on the output shaft of Ab driving part (206), and Ab driving part (206) drives ditching wheel (207) to rotate; Seedling feeding mechanism (3) is installed on the right side of frame (1), including: Ba driving part (301), Ba driving part (301) is fixedly connected on the right upper side of frame (1); Push plate (302), push plate (302) is fixedly connected on Ba driving part (301); Seedling carrying box (303), seedling carrying box (303) is placed on frame (1) with long side parallel to push plate (302), and the push plate (302) is driven by Ba driving part (301) to transport the lettuce seedlings on seedling carrying box (303); Bb driving part (305), Bb driving part (305) is fixedly connected on the right front upper end of frame (1), and the output shaft thereof is fixedly connected with seedling feeding platform (304), and Bb driving part (305) is responsible for driving the rotation of seedling feeding platform (304); Bf driving part (319), Bf driving part (319) is located below seedling feeding platform (304) and is fixedly connected with frame (1), and the output shaft thereof is fixedly connected with chute (306), and chute (306) is located below left side of seedling feeding platform (304), and the right end thereof is fixedly connected with inclined vertical block, and Bf driving part (319) is responsible for driving the rotation of chute (306); Bc driving part (309), Bc driving part (309) is fixedly connected on the right rear upper end of frame (1), and the output shaft thereof is fixedly connected with cam (310); Push rod (312), push rod (312) is located above chute (306) and is slidably placed on frame (1); B connecting rod (311), B connecting rod (311) is movably connected with cam (310) at rear end, and is movably connected with push rod (312) at front end. Gear set (314), gear set (314) is located in the front side of the chute (306), is composed of a plurality of gear rotationally connected on the frame (1), B track (315) is engaged with each gear of gear set (314); Bd drive (313), Bd drive (313) is fixedly connected to the right front of the frame (1), the output shaft is fixedly connected with the gear on the right side of gear set (314), responsible for driving the rotation of gear set (314); Recycling platform (317), recycling platform (317) is located in the rear side of the chute (306), for collecting empty seedling box (303); The soil covering mechanism (4) is installed on the left side of the ditching mechanism (2), comprising: Cylinder (401), the base of cylinder (401) is rotatably connected with frame (1); Support column (402), support column (402) is located on the left side of cylinder (401), the bottom end of support column (402) is rotatably connected with frame (1); Connecting frame (403), the left end of connecting frame (403) is rotatably connected with two soil covering wheels (404), the right side of connecting frame (403) is fixedly connected with the top of support column (402), the right end of connecting frame (403) is rotatably connected with the telescopic rod of cylinder (401); The root removing mechanism (5) is installed on the left rear of the frame (1), comprising: Da drive (501) and Db drive (502), Da drive (501) and Db drive (502) are fixedly connected in parallel on the frame (1), the output shafts are fixedly connected with Da gear (503) and Db gear (504) respectively; Dc gear (505) and Dd gear (506), Dc gear (505) is on the left side of Da gear (503) and rotatably connected with frame (1), Dd gear (506) is on the left side of Db gear (504) and rotatably connected with frame (1), Da gear (503) and Dc gear (505) are engaged with Da track (507), Db gear (504) and Dd gear (506) are engaged with Db track (508), and a gap for clamping asparagus is provided between Da track (507) and Db track (508); Dc drive (511), Dc drive (511) is located on the left lower side of the gap between Da track (507) and Db track (508) and is fixedly connected with frame (1), the output shaft is fixedly connected with cutter (509), the cutter (509) is driven to rotate by Dc drive (511) to cut the root of asparagus; Stop block (510), stop block (510) is located on the right lower side of the gap between Da track (507) and Db track (508) and is fixedly connected with frame (1), responsible for converting the asparagus with cut root from vertical state to inclined state; The leaf removing mechanism (6) is installed on the right side of the root removing mechanism (5), comprising: E drive (601), E drive (601) is fixedly connected on the left rear of the frame (1); E lead screw (602), the right ends of the two E lead screws (602) are rotatably connected with the frame (1), and the left ends of the two E lead screws (602) are driven to rotate by E drive (601); Support frame (603), support frame (603) across two E silk rod (602) and with two E silk rod (602) meshed; Push block (604), push block (604) is fixedly connected at the top of support frame (603), used to push the lettuce for leaf removal; Track plate (605), track plate (605) is fixedly connected on the car frame (1) on the front and back of push block (604), track plate (605) is inclined to set, make the lettuce keep from left to right direction in the process of being pushed; Leaf removal ring (606), leaf removal ring (606) is fixedly connected on the car frame (1) on the right side of track plate (605), used to remove the leaves of the lettuce; Stacking mechanism (7) is installed in the middle of car frame (1), including: The upper rear of the middle of car frame (1) is provided with front and back two gear shafts rotatably connected with car frame (1), Fa gear (702) and Fb gear (703) are fixedly connected with the rear gear shaft, Fc gear (704) and Fd gear (705) are fixedly connected with the front gear shaft, Fa gear (702) and Fc gear (704) mesh with Fa track (706), Fb gear (703) and Fd gear (705) mesh with Fb track (707); Fa drive (701), Fa drive (701) is fixedly connected with the rear of the middle of car frame (1), and the rear gear shaft is driven to rotate through the meshing chain; Fb drive (708), Fb drive (708) is fixedly connected with car frame (1); Push box frame (709), push box frame (709) is fixedly connected with Fb drive (708); Slide plate (710), slide plate (710) is fixedly connected at the front of the middle of car frame (1) at the rear end, and the front end is inclined downward; Box changing mechanism (8) is installed at the left front of car frame (1), including: G drive (801), G drive (801) is fixedly connected with car frame (1); Gear shaft (802), gear shaft (802) is rotatably connected with car frame (1), and gear shaft (802) is driven to rotate by G drive (801); G gear (803), two G gears (803) are fixedly connected with gear shaft (802); Push box rod (805), two push box rods (805) are arranged on car frame (1) below gear shaft (802), and the upper end of push box rod (805) is fixedly connected with rack (804), and rack (804) is meshed with G gear (803). 2.The lettuce planting and harvesting integrated machine according to claim 1, characterized in that, A connecting rod (205) is provided with upper and lower screw holes penetrating through left and right ends, and the left and right screw holes are respectively meshed with Aa screw rod (202) and Ab screw rod (203); the output shaft of Ab drive (206) is inclined to the left. 3.The lettuce planting and harvesting integrated machine according to claim 1, characterized in that, Ba drive (301) is composed of a rack and a motor gear set, the rack is fixedly connected to the right upper side of car frame (1), and the motor gear set is meshed with the rack; Bc drive (309) is composed of a motor, a worm gear and a worm, the motor is fixedly connected to the right rear upper end of car frame (1), the worm is fixedly connected with the output shaft of the motor, and the worm gear is rotatably connected with car frame (1) and meshed with the worm.

4. The lettuce planting and harvesting integrated machine according to claim 1, characterized in that, The front end of the seedling delivery platform (304) is fixedly connected with a limiting plate (320); the left end of the chute (306) is fixedly connected with a limiting column (321), and the front end of the chute (306) is fixedly connected with a Ba baffle (307).

5. The lettuce planting and harvesting integrated machine according to claim 1, characterized in that, The gear set (314) is provided with a hopper (316) on the right side, and the hopper (316) is fixedly connected to the frame (1); a Be driving element (318) is fixedly connected to the frame (1) on the left side of the gear set (314), the output shaft of the Be driving element (318) is fixedly connected with a Bb baffle (308), and the Be driving element (318) drives the Bb baffle (308) to open and close up and down. 6.The lettuce planting and harvesting integrated machine according to claim 1, characterized in that, The two soil covering wheels (404) form an included angle of right large and left small. 7.The lettuce planting and harvesting integrated machine according to claim 1, characterized in that, The cutter (509) comprises three blades, and each blade has a sawtooth. 8.The lettuce planting and harvesting integrated machine according to claim 1, characterized in that, The E driving element (601) is a motor fixedly connected to the left rear of the frame (1), the output shaft of the motor is engaged with a chain at the left end of two E lead screws (602); the bottom end of the support frame (603) is provided with two screw holes penetrating through left and right sides, and the support frame (603) is engaged with the two E lead screws (602) through the two screw holes. 9.The lettuce planting and harvesting integrated machine of claim 1, wherein, The Fb driving element (708) is composed of a rack and a motor gear set, the rack is fixedly connected to the frame (1), and the motor gear set is engaged with the rack; the left side of the box pushing frame (709) is provided with an opening, and the distance between the front and rear of the opening is the width of the lettuce collecting box. 10.The lettuce planting and harvesting integrated machine of claim 1, wherein, The G driving element (801) is a motor fixedly connected to the frame (1), and a chain is engaged between the output shaft of the motor and the rear end of a gear shaft (802).

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