Quick leek harvesting and full-automatic leek harvesting and binding machine

Abstract

The invention discloses a fragrant-flowered garlic fast harvesting-full-automatic fragrant-flowered garlic harvesting and binding machine, and relates to the technical field of agricultural harvesters. The device comprises a walking device, a mounting frame is mounted on the walking device, a cutting device, a grain lifting device, a clamping conveyor belt device, a binding and packaging device and a parallel conveyor belt device are mounted on the mounting frame, and the cutting device is matched with the grain lifting device. According to the device, automatic downward pressing action can be achieved, the binding and packaging efficiency and accuracy are improved, then the design that a half-shaped gear is meshed with a transmission gear is utilized, locking and fixing are conducted through a bolt, a downward pressing mechanism can accurately drive the gear to rotate, a preservative film is pulled out for supplement while downward pressing motion is conducted, the operation steps are simplified, and the working efficiency is improved. Through the design of interference fit and clearance fit, the relative movement between the gear shaft and the sleeve and the relative movement between the sleeve and the preservative film are more accurate, friction and clamping stagnation generated when the preservative film is pulled out are reduced, and the reliability and stability of equipment are improved.

Description

Technical Field

[0001] The present invention belongs to the field of agricultural harvesters, and specifically, relates to a quick harvesting - fully automatic leek harvesting and bundling machine. Background Art

[0002] With the development of agricultural automation technology, mechanized harvesting has increasingly become an inevitable trend of agricultural modernization. As a common vegetable, the planting and harvesting of leeks have always been an important task for farmers. However, the traditional manual harvesting method not only has a high labor intensity, low efficiency, but also high costs.

[0003] The research on leaf vegetable harvesting machinery in China started relatively late but has developed rapidly. Most of the harvesters on the market are imported from abroad. Although some mechanized harvesting machines have emerged in China in recent years, the existing machines on the market can only meet either leek harvesting or packing and bundling. Due to the low - cluster growth of leeks, the traditional cutting method will cause the leeks to be in a mess, increasing the difficulty and workload of bundling, resulting in low work efficiency of packing and bundling.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a quick harvesting - fully automatic leek harvesting and bundling machine.

[0006] To solve the above - mentioned technical problem, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A quick harvesting - fully automatic leek harvesting and bundling machine, including a traveling device, an installation frame is installed on the traveling device, a cutting device, a lifting device, a clamping conveyor belt device, a bundling and packing device, and a parallel conveyor belt device are installed on the installation frame. The cutting device is matched with the lifting device, the lifting device is matched with the clamping conveyor belt device, and the clamping conveyor belt device is matched with the parallel conveyor belt device;

[0008] The bundling and packing device includes a pressing mechanism and a tape replenishing mechanism, and the parallel conveyor belt device is matched with the pressing mechanism.

[0009] Optionally, the cutting device includes a motor bracket mounted on a mounting frame, a cutting motor mounted on the motor bracket, a cutting knife mounted on an output end of the cutting motor, and a cutting knife pressure plate provided at the output end of the cutting motor; in order to increase the strength of the cutting knife, reduce the wear of the cutting knife and protect the rhizome of leek, manganese steel is selected as the cutting knife material, and the cutting edge of the cutting knife needs to be quenched to avoid the cutting knife being easily worn and rusted due to the high moisture content of the leek root; a connecting pipe is provided at the output end of the cutting motor, the connecting pipe is fixedly connected to the cutting knife, and the cutting knife pressure plate is provided on the connecting pipe, and the cutting knife is fixed by the upper and lower cutting knife pressure plates so that it is coaxial with the connecting pipe to prevent the cutting knife from shaking during operation.

[0010] Optionally, the clamping conveyor belt device includes a transmission shaft rotatably engaged on a mounting frame, a driven roller rotatably engaged on the mounting frame, a driving roller is mounted on the transmission shaft, a clamping belt is sleeved on the driving roller and the driven roller, a driven gear is mounted on the transmission shaft, a driving motor is mounted on the mounting frame, a driving gear is mounted on the output end of the driving motor, and the driving gear and the driven gear are meshed with each other.

[0011] Optionally, the active roller and the driven roller are skewed and perpendicular.

[0012] Optionally, a parallel transmission belt device includes a mounting plate mounted on a mounting frame, a main transmission roller and a secondary transmission roller are rotatably matched on the mounting plate, two transmission belts are sleeved on the main transmission roller and the secondary transmission roller, a gap is set between the two transmission belts, a pushing motor is mounted on the mounting frame, a push rod is mounted on the output end of the pushing motor, the push rod cooperates with the gap, a transmission motor is mounted on the mounting frame, a synchronous wheel is mounted on the output end of the transmission motor and one end of the secondary transmission roller, a synchronous belt is sleeved on the synchronous wheel, a blocking assembly is provided on the mounting frame, the blocking assembly cooperates with the gap; the height of the push rod blocking must be higher than the stacking height of the leeks to be transported subsequently, and it must be ensured that the lower end of the push rod cannot contact the transmission belt.

[0013] Optionally, the blocking component includes a rotating motor installed on the mounting frame, a transmission rod is installed at the output end of the rotating motor, a rotating baffle rod is installed on the transmission rod, and the rotating baffle rod cooperates with the gap; when the leek is released by the push rod, it is transported to the rotating baffle rod through the transmission belt, and its function is to block the leek so that the leek is always kept horizontal with the transmission belt to facilitate the bundling and packaging device to pack it; when the leek is transported to the front of the rotating baffle rod by the transmission belt, the rotating baffle rod first blocks the leek, and the packaging position is located on the front side of the rotating baffle rod. When the bundling and packaging is completed, the rotating baffle rod rotates counterclockwise in the transportation direction of the transmission belt until it is kept horizontal with the transmission belt to allow the leek to pass.

[0014] Optionally, the pressing mechanism includes a main mounting seat and a secondary mounting seat mounted on the mounting frame, the main mounting seat is rotatably equipped with a pressing arm, the pressing arm is rotatably equipped with a nylon roller, and a half-shaped gear is installed on the side of the pressing arm.

[0015] Optionally, a rotary motor is installed on the auxiliary mounting seat. Two transmission gears are rotatably fitted on the auxiliary mounting seat. The two transmission gears mesh with each other. A sleeve is rotatably fitted on the auxiliary mounting seat. One of the transmission gears is connected to the rotary motor and meshes with the semi-circular gear. The other transmission gear has an interference fit with the sleeve. A plastic wrap is provided on the sleeve. The plastic wrap cooperates with the nylon roller.

[0016] Optionally, the tape replenishing mechanism includes an external fixing block and a push rod motor installed on the mounting frame. A movable block is installed at the output end of the push rod motor. The movable block is movably connected to the external fixing block. A blade is installed on the top of the external fixing block. A lever is rotatably fitted inside the external fixing block. A tape shaft is installed on the side of the inner cavity of the external fixing block. A lock screw is installed on the tape shaft. A spring anti-loosening gasket is provided on the tape shaft. A tape is provided on the tape shaft. A swing arm is provided on the tape shaft. A replenishing push rod is installed on the swing arm. The swing arm is connected to the movable block; Since the push rod motor and the movable block are fixed by bolts, when the two nylon rollers at the front end of the pressing arm press against the movable block, the photoelectric sensor will send a signal to the push rod motor to retract it, that is, drive the movable block to descend; When the movable block descends to the specified position, since the movable block is connected to the replenishing push rod, the replenishing push rod will rotate downward around the axis of the tape, thereby pulling out the tape to pack the second bundle of leeks. The above process is based on the linkage of the movable block, the replenishing push rod and the lever, and the swing rod on the tape shaft realizes the conversion of the linear motion of the push rod motor into the rotational motion of the replenishing push rod, laying the foundation for the packaging work of the next bundle while completing the packaging of the previous bundle of leeks, realizing cycle coherence and bundling efficiency.

[0017] Optionally, the lifting device is composed of two limiting mechanisms. The distance between the two limiting mechanisms changes from wide to narrow; Compared with other leafy vegetables, leeks have a smaller single-plant volume and a larger dumping range, and are scattered in the field. Therefore, a straightening device is needed to straighten the leeks before harvesting for subsequent cutting. This straightening device is composed of two symmetrical mechanisms. The distance between the two limiting mechanisms changes from wide to narrow, which can straighten leeks with different growth conditions. The narrow rear end is conducive to subsequent clamping and cutting. In addition, due to the characteristics of leeks, the cutting position affects their growth trend. Therefore, this straightening device can freely control the lifting height to adapt to different working environments.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below:

[0019] 1. When the photoelectric sensor detects leeks, it will perform an automatic pressing-down action, improving the efficiency and accuracy of bundling and packing. Subsequently, with the design of the half-shaped gear meshing with the transmission gear and fixed by bolt locking, the pressing-down mechanism can precisely drive the gear to rotate, pulling out the plastic wrap for replenishment during the pressing-down movement, simplifying the operation steps. Through the design of interference fit and clearance fit, the relative movement between the gear shaft and the sleeve, as well as between the sleeve and the plastic wrap, is more precise, reducing the friction and jamming when pulling out the plastic wrap and improving the reliability and stability of the equipment.

[0020] 2. By adopting the linkage of the movable block and the push rod motor, the function of automatically retracting the motor push rod and driving the movable block to descend is realized, enabling the tape to be accurately pulled out by a specified length each time for the next packing preparation. Subsequently, with the linkage design of the movable block, the tape replenishment push rod, and the lever, the linear motion of the push rod motor is converted into the rotational motion of the tape replenishment push rod through the swing rod fixed on the tape shaft, ensuring the smooth progress of the tape pulling-out action and making the packing process more stable and precise. The connection between the push rod motor and the movable block is made more secure by bolt locking. By setting the operation time of the push rod through the timing module, the stroke of the push rod motor is controlled, reducing the looseness and friction during operation, improving the accuracy and stability of the motion, reducing the downtime of the production line, and thus realizing the efficient progress of the packing work.

[0021] 3. The reasonable design and precise operation of the bundling and packing device can ensure that the tape tightly wraps the ends of the leeks, thereby improving the bundling quality. Compared with traditional manual bundling, the mechanized bundling device can apply force more evenly, avoiding the problems of too loose or too tight bundling and ensuring that the tape is firmly tied to the leeks.

[0022] 4. The automated operation of the pressing-down mechanism and the tape replenishment mechanism makes the entire bundling process more efficient, automatically completing functions such as pressing down the tape, bundling, and replenishing the tape, greatly reducing the manual operation time and labor intensity and improving the work efficiency.

[0023] 5. The automated pressing-down mechanism and tape replenishment mechanism can significantly improve the production efficiency and reduce the labor cost. Compared with traditional manual bundling, the mechanized bundling operation is faster and more accurate, capable of meeting the needs of large-scale leek production, and enhancing the production efficiency and output.

[0024] 6. This all-in-one machine can effectively solve the problems of human resources and economic costs in the process of leek harvesting. This all-in-one machine can improve work efficiency, reduce labor intensity, solve the problem of fatigue caused by people bending down to cut leeks for a long time, and it has a large harvesting and storage space and can work continuously for a long time. At the same time, it is reasonably designed, can be mass-produced, and is easy to operate and maintain, and is suitable for various scenarios of different land environments.

[0025] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0027] Figure 1 is a schematic structural diagram of a leek harvesting and bundling machine according to an embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of a cutting device according to an embodiment of the present invention;

[0029] Figure 3 is a schematic structural diagram of a lifting device according to an embodiment of the present invention;

[0030] Figure 4 is a schematic structural diagram of a parallel conveyor belt device according to an embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of a driving motor according to an embodiment of the present invention;

[0032] Figure 6 is a schematic structural diagram of a rotating motor according to an embodiment of the present invention;

[0033] Figure 7 is a schematic structural diagram of a clamping conveyor belt device according to an embodiment of the present invention;

[0034] Figure 8 is a schematic structural diagram of a bundling and packing device according to an embodiment of the present invention;

[0035] Figure 9 is a schematic structural diagram of a pressing mechanism according to an embodiment of the present invention;

[0036] Figure 10 is a schematic structural diagram of a tape replenishing mechanism according to an embodiment of the present invention;

[0037] Figure 11 is a schematic structural diagram of the overall machine circuit schematic according to an embodiment of the present invention;

[0038] Figure 12Schematic structural diagram of the cleaning component according to an embodiment of the present invention;

[0039] Figure 13 Exploded structural diagram of the cleaning component according to an embodiment of the present invention;

[0040] In the drawings, the list of components represented by each reference numeral is as follows:

[0041] 1. Traveling device; 2. Cutting device; 201. Motor bracket; 202. Cutting motor; 203. Cutter pressing plate; 204. Cutting knife; 3. Reaping aid device; 4. Clamping conveyor belt device; 401. Driving motor; 402. Driving gear; 403. Transmission shaft; 404. Driving roller; 405. Driven gear; 406. Driven roller; 407. Clamping belt; 5. Bundling and packing device; 501. Pressing mechanism; 5011. Pressing arm; 5012. Rotating motor; 5013. Transmission gear; 5014. Half gear; 5015. Nylon roller; 5016. Plastic wrap; 502. Tape replenishing mechanism; 5021. External fixing block; 5022. Push rod motor; 5023. Movable block; 5024. Blade; 5025. Locking screw; 5026. Spring lock washer; 5027. Tape; 5028. Lever; 5029. Replenishing push rod; 6. Parallel conveyor belt device; 601. Pushing motor; 602. Main driving roller; 603. Auxiliary driving roller; 604. Conveyor belt; 605. Transmission motor; 606. Synchronous pulley; 607. Timing belt; 608. Blocking component; 6081. Rotating motor; 6082. Transmission rod; 6083. Rotating blocking rod; 7. Cleaning component; 701. Fixed plate; 7011. T-shaped block; 7012. Storage box; 7013. Arc plate; 702. Rotating cylinder; 703. Scraper; 704. Rotating rod; 705. Connecting block; 706. Cleaning roller; 707. Limiting member; 708. Elastic limiting member; 709. Limiting plate; 7091. Connecting spring.

[0042] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Description of the Specific Embodiment

[0043] Now, the present invention will be further described in detail with reference to the drawings.

[0044] Embodiment 1:

[0045] Please refer to Figure 1-10As shown, in this embodiment, a leek quick harvesting and fully automatic leek harvesting and bundling machine is provided, comprising a walking device 1, on which a mounting frame is mounted, on which a cutting device 2, a rice-supporting device 3, a clamping conveyor belt device 4, a bundling and packaging device 5, and a parallel transmission belt device 6 are mounted, the cutting device 2 cooperates with the rice-supporting device 3, the rice-supporting device 3 cooperates with the clamping conveyor belt device 4, and the clamping conveyor belt device 4 cooperates with the parallel transmission belt device 6;

[0046] The binding and packaging device 5 includes a pressing mechanism 501 and a tape replenishing mechanism 502 , and the parallel transmission belt device 6 cooperates with the pressing mechanism 501 .

[0047] One aspect of the application of this embodiment is as follows: the stalk-supporting device 3 can simulate a human hand holding the leek for cutting by clamping; after the cutting device 2 cuts the leek, the clamping conveyor belt device 4 twists the leek 90 degrees so that the leek enters the parallel transmission belt device 6 horizontally, so as to transport the leek and carry out subsequent bundling work. When the leek is conveyed to the pressing mechanism by the parallel transmission belt device 6, the pressing mechanism bundles the leek. After bundling is completed, the pressing mechanism is lifted to prepare for the packaging of the next bundle of leeks. At this point, one cycle of harvesting and bundling work has been completed, and all mechanisms return to the initial position to prepare for the next cycle of harvesting, bundling and packaging work.

[0048] See also Figure 1-2 As shown, the cutting device 2 of this embodiment includes a motor bracket 201 installed on a mounting frame, a cutting motor 202 is installed on the motor bracket 201, a cutting knife 204 is installed at the output end of the cutting motor 202, and a cutting knife pressing plate 203 is provided at the output end of the cutting motor 202; in order to increase the strength of the cutting knife 204, reduce the wear of the cutting knife 204 and protect the rhizome of leek, manganese steel is selected as the material of the cutting knife 204, and the cutting edge of the cutting knife 204 needs to be quenched, so as to avoid the cutting knife 204 being easily worn and rusted due to the high moisture content of the leek root, the output end of the cutting motor 202 is provided with a connecting pipe, the connecting pipe is fixedly connected to the cutting knife 204, and the cutting knife pressing plate 203 is arranged on the connecting pipe, and the cutting knife 204 is fixed by the upper and lower cutting knife pressing plates 203 so that it is coaxial with the connecting pipe to prevent the cutting knife 204 from shaking during operation.

[0049] With the set cutting device 2, when the cutting knife 204 is operating, first, the plant holding device 3 straightens the leek plants so that they are perpendicular to the ground. Next, the leeks enter the clamping conveyor device 4. By applying appropriate frictional force and extrusion force through the clamping conveyor device 4, the leeks are urged to move closer to the middle part. At this time, the cutting motor 202 drives the cutting knife 204 to rotate and enter the working state. Using its sharp blade edge, the root part of the leeks is cut off. The rapid rotation and sharp blade edge of the cutting knife 204 ensure the high efficiency and accuracy of the cutting effect. The cut leeks are transported upward by the clamping conveyor device 4 to prevent them from falling.

[0050] Among them, considering the material of the cutting knife 204 and the requirements of the cutting knife 204, the thickness of the cutting knife 204 is selected as 1.7 mm, the blade angle of the cutting knife 204 is 22°, and the left - right alternating tooth shape is used. During the working process of the cutting knife 204, its rotary contour should completely cover a single row of leeks and at the same time avoid contacting the leeks in the adjacent rows. After consulting the data, the row width of a single row of leeks is about 15 - 20 mm, and the distance between adjacent leeks is about 40 - 45 mm. Considering the above conditions, the pitch diameter of the cutting knife 204 is selected as 94 mm, the tooth width is 1.5 mm. From the diameter of the cutting knife 204, it can be calculated that the circumference of the cutting knife 204 is 329 mm. Usually, the tooth pitch is taken as 8 - 12 mm. In order to avoid the cutting knife 204 missing cutting the leeks, during the cutting interval of adjacent teeth, the traveling speed of the machine needs to be less than the effective cutting length of the blade edge. On the premise of ensuring no missed cutting, the more teeth the cutting knife 204 has, the better the cutting effect. Therefore, the tooth pitch is selected as 8 mm, and the number of teeth is calculated to be 40 teeth.

[0051] The condition for the cutting knife 204 not to miss cutting is:

[0052]

[0053] In the formula: n - rotational speed of the cutting knife 204 (r / min); v - traveling speed of the machine (m / s); N - number of teeth of the cutting knife 204 (pieces); L - effective cutting length of the cutting knife 204 (m);

[0054] Considering the harvesting efficiency and the cooperation with the bundling mechanism, the traveling speed of the machine is initially determined, and substituting it into we get:

[0055] n ≥ 500 r / min

[0056] Therefore, the motor of the cutting knife 204 is selected as a 12V, 20A DC motor, with the highest rotational speed and the maximum output power of 180W, meeting the design requirements.

[0057] Please refer to Figure 1-7As shown in the figure, the clamping conveyor belt device 4 of this embodiment includes a transmission shaft 403 rotatably fitted on the mounting frame, a driven roller 406 rotatably fitted on the mounting frame, a driving roller 404 mounted on the transmission shaft 403, a clamping belt 407 sleeved on the driving roller 404 and the driven roller 406, a driven gear 405 mounted on the transmission shaft 403, a driving motor 401 mounted on the mounting frame, and a driving gear 402 mounted on the output end of the driving motor 401. The driving gear 402 meshes with the driven gear 405.

[0058] Please refer to Figure 1-7 As shown in the figure, the driving roller 404 and the driven roller 406 of this embodiment are perpendicular to each other in different planes.

[0059] With the clamping conveyor belt device 4 provided, during operation, the driving motor 401 drives the driving roller 404 to drive the clamping belt 407 to move. The driven roller 406 is rotated by the frictional force provided by the inner surface of the clamping belt 407. During the conveying process, the two clamping belts 407 move in opposite directions, and the leeks remain relatively stationary with respect to them. Among them, the driving roller 404 and the driven roller 406 are perpendicular to each other in different planes, and the leeks are gradually turned from a vertical state to a horizontal state by the clamping belt 407 during the conveying process.

[0060] Since the clamping belt 407 conveys the leeks by the clamping force and frictional force between the belts, and the stem part of the leeks has a weak anti-extrusion ability. If the distance between the two clamping belts 407 is too far, the leeks will fall off from the middle gap; if the distance between the two clamping belts 407 is too close, the leeks will be damaged by the clamping belt 407. Therefore, the tightness of the clamping belt needs to be adjusted according to the size of the leeks.

[0061] To make the speed of harvesting leeks match the speed of bundling and packing leeks, it is particularly important to reasonably design the speed of the clamping belt 407. If the speed of the clamping belt 407 is too small to match the traveling speed of the machine, the leeks will not only be blocked on the clamping belt but also cause the subsequent bundling and packing device to rotate idly; if the transportation speed of the clamping belt 407 is too fast, the leeks will accumulate after leaving the clamping belt. At this time, the falling posture of the leeks is uncontrollable and the damage rate increases suddenly. Therefore, selecting a reasonable speed of the clamping belt 407 can make the conveying process stable and improve the harvesting quality of the leeks. The speed of the clamping belt 407 should be such that the amount of leeks transported by the clamping belt 407 per unit time is equal to the amount that the machine can handle according to the planting density of the leeks, that is:

[0062] V m BP 1 =V n DP 2

[0063] In the formula: V m - The traveling speed of the machine (m / s), between 0.2 and 0.8 m / s;

[0064] The harvesting width of the B-cutting knife 204 is determined by the distance between the front ends of the reaping devices, B = 0.24 m;

[0065] P 1 - The row spacing of leek planting (plants / mm), the row spacing between adjacent leek rows is about 10 - 20 mm;

[0066] V n - The running speed of the clamping belt 407 (m / s);

[0067] D - The thickness of the leek after being clamped (m), which is determined by the distance between the two sections of the clamping belt 407. The distance cannot be too large to cause it to fail. D < 30 mm is obtained from the thickness of the clamping belt and the extrusion force between the two sections of the clamping belt 407;

[0068] P 2 - The row spacing of leeks on the clamping belt 407 (plants / mm), which is determined by the length of the clamping belt 407 and the spacing of leeks on the clamping belt 407, P 2 = 0.55 - 0.61 (plants / mm). According to the above formula, it can be obtained that:

[0069]

[0070] k is the aggregation coefficient of leeks, From the row spacing of leek planting and the row spacing of leeks on the clamping belt, k = 16 - 33 can be obtained. Through calculation, the running speed of the clamping conveyor belt can be obtained:

[0071] V n > 0.26 m / s

[0072] At the same time, in order to ensure the integrity of the leeks, a soft conveyor belt material needs to be selected for the clamping belt 407. This material needs to have a certain elasticity in order to reduce the extrusion force on the leeks during the conveying process. At the same time, in order to ensure the service life of the clamping belt 407, the two sections of the clamping belt 407 need to use the same material to avoid losses and wear caused by inconsistent materials.

[0073] The drive device of this clamping belt 407 consists of a drive motor 401 (12V, 1.2W, load rotation speed 48 r / min), a transmission shaft 403, a driving gear 402, a driven gear 405, etc. This set of drive device is installed on the side of the mounting frame by bolts through a motor mounting bracket. The drive motor 401 provides power for it. The driving gear 402 and the driven gear 405 are the power sources of the drive device. The transmission between the driving gear 402 and the driven gear 405 can realize the transformation of the rotation direction of different mechanisms. This kind of transmission has high efficiency, compact structure and stable transmission ratio. The drive motor 401 transmits power to the driven gear 405 through the driving gear 402. Since key connections are adopted between each driven gear 405 and the transmission shaft 403, the driven gear 405 transmits torque to the transmission shaft 403 by the key. The transmission shaft 403 and the driving roller 404 are in interference fit, so that the transmission shaft 403 drives the driving roller 404 to rotate. Finally, the driving roller 404 drives the clamping belt 407 to move through the friction force between the driving roller 404 and the clamping belt 407.

[0074] Please refer to Figure 1-6 As shown, the parallel belt device 6 of this embodiment includes a mounting plate installed on the mounting frame. A main drive roller 602 and a sub-drive roller 603 are rotatably fitted on the mounting plate. Two transmission belts 604 are sleeved on the main drive roller 602 and the sub-drive roller 603. There is a gap between the two transmission belts 604. A pushing motor 601 is installed on the mounting frame. A push rod is installed at the output end of the pushing motor 601. The push rod is matched with the gap. A transmission motor 605 is installed on the mounting frame. Synchronous wheels 606 are installed at the output end of the transmission motor 605 and one end of the sub-drive roller 603 respectively. A synchronous belt 607 is sleeved on the synchronous wheels 606. A blocking assembly 608 is arranged on the mounting frame. The blocking assembly 608 is matched with the gap; the height of the push rod blockage should be higher than the stacking height of the leeks transported later and ensure that the lower end of the push rod cannot contact the transmission belt 604.

[0075] Please refer to Figure 1-6 As shown, the blocking assembly 608 of this embodiment includes a rotating motor 6081 installed on the mounting frame. A transmission rod 6082 is installed at the output end of the rotating motor 6081. A rotating blocking rod 6083 is installed on the transmission rod 6082. The rotating blocking rod 6083 is matched with the gap; when the leeks are released by the push rod and transported to the rotating blocking rod 6083 through the transmission belt 604, its function is to block the leeks so that the state of the leeks always remains horizontal with the transmission belt 604 for convenient bundling and packing by the bundling and packing device 5. When the leeks are transported to the front of the rotating blocking rod 6083 by the transmission belt 604, the rotating blocking rod 6083 blocks the leeks first. The packing position is located in the front side of the rotating blocking rod 6083. After the bundling and packing are completed, the rotating blocking rod 6083 rotates counterclockwise in the transportation direction of the transmission belt 604 until it is horizontal with the transmission belt 604 to allow the leeks to pass through.

[0076] Through the provided parallel conveyor belt device 6, after the leeks are cut, they are transferred from the clamping belt 407 to the parallel conveyor belt device 6. The conveyor belt 604 is composed of two belts with different width dimensions. The gap between the two conveyor belts 604 enables the push rod and the rotating stop lever 6083 to expand, contract, and rotate in the vertical space. When the leeks are transported to the conveyor belt 604 by the clamping belt 407, since the previous bundle of leeks is being bundled and packed, the function of the push rod is to block the continuous flow of leeks. The push rod blocks the next bundle of leeks to prevent interference with the normal operation of the bundling and packing device 5, thereby preventing the next bundle of leeks from entering the packing area and facilitating the stable operation of the bundling and packing device 5. After the packing is completed, the driving motor 601 drives the push rod to descend, and the next bundle of leeks continues to be transported into the working range of the bundling and packing device 5, repeating the cycle. When the leeks are behind the push rod and in front of the rotating stop lever 6083, if the photoelectric sensor on the side of the pressing mechanism 501 detects that the pressing mechanism 501 presses down, the driving motor 605 will be powered off, and thus the conveyor belt 604 will stop, which is beneficial for the bundling and packing device 5 to pack. When the bundling and packing device 5 completes the packing, that is, when the pressing mechanism 501 resets, this photoelectric sensor continues to be blocked, and the conveyor belt 604 continues to operate.

[0077] Please refer to Figure 1-9 As shown, the pressing mechanism 501 of this embodiment includes a main mounting seat and a sub-mounting seat installed on the mounting frame. A pressing arm 5011 is rotatably fitted on the main mounting seat. A nylon roller 5015 is rotatably fitted on the pressing arm 5011. A semi-circular gear 5014 is installed on the side of the pressing arm 5011.

[0078] Please refer to Figure 1-9 As shown, a rotating motor 5012 is installed on the sub-mounting seat of this embodiment. Two transmission gears 5013 are rotatably fitted on the sub-mounting seat. The two transmission gears 5013 mesh with each other. A sleeve is rotatably fitted on the sub-mounting seat. One of the transmission gears 5013 is connected to the rotating motor 5012 and meshes with the semi-circular gear 5014. The other transmission gear 5013 has an interference fit with the sleeve. A preservative film 5016 is provided on the sleeve. The preservative film 5016 cooperates with the nylon roller 5015.

[0079] Please refer to Figure 1-10As shown in the figure, the tape replenishing mechanism 502 of this embodiment includes an external fixed block 5021 and a push rod motor 5022 installed on the mounting frame. A movable block 5023 is installed at the output end of the push rod motor 5022. The movable block 5023 is movably connected to the external fixed block 5021. A blade 5024 is installed on the top of the external fixed block 5021. A lever 5028 is rotatably fitted in the external fixed block 5021. A tape shaft is installed on the side of the inner cavity of the external fixed block 5021. A locknut 5025 is installed on the tape shaft. A spring anti-loosening gasket 5026 is arranged on the tape shaft. A tape 5027 is arranged on the tape shaft. A swing arm is arranged on the tape shaft. A replenishing push rod 5029 is installed on the swing arm. The swing arm is connected to the movable block 5023. Since the push rod motor 5022 and the movable block 5023 are fixed by bolts, when the two nylon rollers 5015 at the front end of the pressing arm 5011 press against the movable block 5023, the photoelectric sensor will send a signal to the push rod motor 5022 to make it retract, that is, drive the movable block 5023 to descend. When the movable block 5023 descends to the specified position, since the movable block 5023 is connected to the replenishing push rod 5029, the replenishing push rod 5029 will rotate downward around the axis of the tape 5027, thereby pulling out the tape 5027 for packing the second bundle of leeks. The above process is based on the linkage of the movable block 5023, the replenishing push rod 5029 and the lever 5028. The linear motion of the push rod motor 5022 is converted into the rotational motion of the replenishing push rod 5029 through the swing rod on the tape shaft, laying the foundation for the packing work of the next bundle while completing the packing of the previous bundle of leeks, realizing cycle coherence and high bundling efficiency.

[0080] Through the provided bundling and packing device 5, the bundling and packing work of leeks is mainly completed by the pressing mechanism 501 and the tape replenishing mechanism 502. Among them, the pressing mechanism 501 drives the coupling by the rotating motor 5012, and the coupling is connected to the transmission gear 5013, thereby driving the transmission gear 5013 to rotate. The semi-circular gear 5014 and the pressing arm 5011 are fixed by bolts. Therefore, when the pressing arm 5011 moves downward, the semi-circular gear 5014 meshes with the two transmission gears 5013 and rotates. Also, since the gear shaft of one of the transmission gears 5013 and the sleeve are in interference fit, and the sleeve and the plastic wrap 5016 are in clearance fit, when the transmission gear 5013 rotates, the plastic wrap 5016 will be pulled out for replenishment to facilitate the bundling and packing work in the next cycle. When the leeks are detected by the photoelectric sensor of the pressing mechanism 501, the pressing mechanism 501 is driven by the rotating motor 5012 to rotate and press down. When the pressing mechanism 501 presses the tape replenishing mechanism 502, the nylon roller 5015 at the front end of the pressing arm 5011 also contacts the movable block 5023 in the tape replenishing mechanism 502, and the tape 5027 is pulled out from the tape replenishing mechanism 502 through the replenishing push rod 5029. Therefore, the position of the tape 5027 will also be on the surface of the movable block 5023. Once the pressing mechanism 501 presses down, the plastic wrap 5016 attached to the nylon roller 5015 of this mechanism will re-adhere to the tape 5027 due to the pressing force. Therefore, after the pressing mechanism 501 finishes packing and rises, it will continue to pull out the plastic wrap 5016 to prepare for the bundling and packing in the next cycle.

[0081] Please refer to Figure 1-3 As shown, the lifting device 3 of this embodiment consists of two limiting mechanisms, and the distance between the two limiting mechanisms changes from wide to narrow; compared with other leafy vegetables, the single-plant volume of leeks is smaller and the dumping range is larger, and they are scattered in the field. Therefore, before harvesting, a righting device is needed to right the leeks for subsequent cutting. This righting device consists of two symmetrical mechanisms, and the distance between the two limiting mechanisms changes from wide to narrow, which can right leeks with different growth conditions. The narrow rear end is conducive to subsequent clamping and cutting. In addition, due to the characteristics of leeks, the cutting position affects their growth trend. Therefore, this righting device can freely control the lifting height to adapt to different working environments.

[0082] Circuit schematic diagram and control module introduction:

[0083] As Figure 11As shown, turn on the 36V power switch, and the clamping conveyor belt device 4 starts. Turn on the cutting device 2 to rotate the cutting knife 204 to cut the leeks. After the leeks are cut, they are transported by the clamping conveyor belt device 4 from the vertical direction to the horizontal direction. When the first sensor beside the parallel conveyor belt device 6 detects the leeks, the timing module and the delay module start to supply power, and the push rod rises to block the leeks. At the same time, the rotating motor 5012 pushes the plastic wrap 5016. After a certain time, the rotating motor 5012 resets and the leeks continue to be transported; when the leeks are transported to the second sensor, the rotating stop lever 6083 receives the signal to block the leeks. At this time, the bundling and packing device 5 starts to work. When the sensor on the side of the pressing mechanism 501 cannot detect the pressing mechanism 501, the movement of the parallel conveyor belt device 6 stops. After the bundling and packing are completed, the parallel conveyor belt device 6 continues to operate.

[0084] The motor in this device can be a DC reduction motor or a push rod motor. The DC reduction motor rotates to drive an object, and the push rod motor pushes the object to move up and down.

[0085] Step-down module: Changes the voltage by changing the resistance value of the resistance wire, and steps down to 24V and 12V respectively to act as two power supplies.

[0086] Speed regulation module: Controls the motor speed by adjusting the PWM pulse width.

[0087] Delay module: Achieves the effect of delayed power-on through NE555, capacitors and relays.

[0088] Power-off delay relay: When the time relay coil is energized, each delay contact acts instantaneously, and when the coil is de-energized, the contact is in a delayed set working state. When the set delay arrives, the delay contact returns to the initial state again. Controls a motor, and requires that after pressing the stop button, it needs to delay for a period of time before the motor restarts to work.

[0089] Photoelectric sensor: Controls the opening or closing of the switch by receiving the infrared light of diffuse reflection.

[0090] Timing module: Controls the forward rotation, stop and reverse rotation of the motor through timing.

[0091] Embodiment 2:

[0092] Since the sundries attached to the leeks are mixed with the leek juice, they will adhere to the surface of the conveyor belt 604 during the transportation of the parallel conveyor belt device 6. When there is too much adhesion, it is easy to affect the subsequent bundling and packing work.

[0093] Please refer to Figure 1-12 As shown, a cleaning component 7 is installed at the bottom of the mounting plate of this embodiment, and the cleaning component 7 cooperates with the conveyor belt 604.

[0094] Please refer toFigure 1-13 As shown in the figure, the cleaning component 7 of this embodiment includes fixed plates 701 installed on both sides of the mounting plate. A rotating cylinder 702 is rotatably fitted on the fixed plates 701. A scraping plate 703 is installed in the middle of the rotating cylinder 702. A rotating rod 704 is movably connected in the rotating cylinder 702. Connecting blocks 705 are installed at both ends of the rotating rod 704. A cleaning roller 706 is rotatably fitted between the two connecting blocks 705. Limit members 707 are installed at both ends of the rotating cylinder 702. An elastic limit member 708 is rotatably fitted on the side surface of the fixed plate 701. The elastic limit member 708 cooperates with the limit member 707. A T-shaped groove is formed on one side of the fixed plate 701. A storage component is slidably fitted in the T-shaped groove; the cleaning roller 706 and the scraping plate 703 cooperate with the transmission belt 604. The scraping plate 703 can be made of polymer polyurethane material.

[0095] Please refer to Figure 1-13 As shown in the figure, a limit groove is formed on the limit member 707 of this embodiment. The elastic limit member 708 includes an L-shaped rod rotatably fitted on the side surface of the fixed plate 701. A torsion spring is arranged at the rotation part of the L-shaped rod and the fixed plate 701. The L-shaped rod is slidably fitted in the limit groove. A fixed ring is installed on the L-shaped rod. A limit ring is slidably fitted on the L-shaped rod. A limit spring is installed between the fixed ring and the limit ring; through the cooperation of the L-shaped rod, the torsion spring, the fixed ring, the limit ring, and the limit spring with the limit member 707, the scraping plate 703 can be kept in close contact with the transmission belt 604, and at the same time, the wear can be automatically compensated to avoid damaging the transmission belt 604.

[0096] Please refer to Figure 1-13 As shown in the figure, a limit plate 709 is installed on the side surface of the fixed plate 701 of this embodiment. A connecting spring 7091 is installed between the limit plate 709 and the connecting plate 705; the connecting spring 7091 can improve the followability of the cleaning roller 706 to the transmission belt 604. When the cleaning roller 706 is kept in close contact with the transmission belt 604, the wear can be automatically compensated to avoid the cleaning roller 706 from damaging the transmission belt 604.

[0097] Please refer to Figure 1-13 As shown in the figure, the storage component of this embodiment includes a T-shaped block 7011 slidably fitted in the T-shaped groove. A storage box 7012 is installed at the bottom of the T-shaped block 7011. An arc plate 7013 is installed at the top of the storage box 7012; an arc surface is provided on one side of the arc plate 7013 close to the transmission belt 604, so as to play a role in guiding the adhesives scraped by the scraping plate 703 and the cleaning roller 706, so that the adhesives can fall into the storage box 7012, which is convenient for processing the adhesives later.

[0098] By setting up the cleaning component 7, when the conveyor belt 604 moves, the conveyor belt 604 is cleaned by the scraping plate 703 and the cleaning roller 706, so as to effectively remove the adhesives adhered to the surface of the conveyor belt 604. By setting up the limiting member 707 and the elastic limiting member 708, the followability of the scraping plate 703 to the conveyor belt 604 can be ensured, and the wear can be automatically compensated to avoid damaging the conveyor belt 604. By setting up the connecting spring 7091, the followability of the cleaning roller 706 to the conveyor belt 604 can be ensured, so as to improve the cleaning effect while avoiding damaging the conveyor belt 604.

[0099] The present invention is not limited to the above embodiments. Anyone should know that the structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, all fall within the protection scope of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A leek quick harvesting - fully automatic leek harvesting and bundling machine, characterized by: include: A walking device (1), the walking device (1) is provided with a mounting frame, the mounting frame is provided with a cutting device (2), a rice-raising device (3), a clamping conveyor belt device (4), a bundling and packaging device (5), and a parallel transmission belt device (6), the cutting device (2) cooperates with the rice-raising device (3), the rice-raising device (3) cooperates with the clamping conveyor belt device (4), and the clamping conveyor belt device (4) cooperates with the parallel transmission belt device (6); The binding and packaging device (5) comprises a pressing mechanism (501) and an adhesive tape supplementing mechanism (502), and the parallel transmission belt device (6) cooperates with the pressing mechanism (501).

2. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 1 is characterized by: The cutting device (2) comprises a motor support (201) mounted on a mounting frame, a cutting motor (202) mounted on the motor support (201), a cutting knife (204) mounted at the output end of the cutting motor (202), and a cutting knife pressing plate (203) disposed at the output end of the cutting motor (202).

3. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 1 is characterized by: The clamping conveyor belt device (4) comprises a transmission shaft (403) rotatably matched with a mounting frame, a driven roller (406) rotatably matched with the mounting frame, a driving roller (404) is mounted on the transmission shaft (403), a clamping belt (407) is sleeved on the driving roller (404) and the driven roller (406), a driven gear (405) is mounted on the transmission shaft (403), a driving motor (401) is mounted on the mounting frame, a driving gear (402) is mounted on the output end of the driving motor (401), and the driving gear (402) and the driven gear (405) are meshed with each other.

4. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 3 is characterized by: The active roller (404) and the driven roller (406) are skewed and perpendicular.

5. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 1 is characterized by: The parallel transmission belt device (6) comprises a mounting plate mounted on a mounting frame, a main transmission roller (602) and an auxiliary transmission roller (603) are rotatably matched on the mounting plate, two transmission belts (604) are sleeved on the main transmission roller (602) and the auxiliary transmission roller (603), and a gap is provided between the two transmission belts (604), a driving motor (601) is mounted on the mounting frame, a push rod is mounted on the output end of the driving motor (601), and the push rod is matched with the gap, a transmission motor (605) is mounted on the mounting frame, a synchronous wheel (606) is mounted on the output end of the transmission motor (605) and one end of the auxiliary transmission roller (603), and a synchronous belt (607) is sleeved on the synchronous wheel (606), and a blocking component (608) is provided on the mounting frame, and the blocking component (608) is matched with the gap.

6. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 5 is characterized by: The blocking assembly (608) comprises a rotating motor (6081) mounted on a mounting frame, a transmission rod (6082) being mounted on the output end of the rotating motor (6081), a rotating blocking rod (6083) being mounted on the transmission rod (6082), and the rotating blocking rod (6083) being matched with the gap.

7. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 1 is characterized by: The pressing mechanism (501) comprises a main mounting seat and a sub-mounting seat mounted on a mounting frame, a pressing arm (5011) is rotatably matched on the main mounting seat, a nylon roller (5015) is rotatably matched on the pressing arm (5011), and a half-shaped gear (5014) is mounted on the side of the pressing arm (5011).

8. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 7, characterized in that: A rotating motor (5012) is mounted on the auxiliary mounting seat, and two transmission gears (5013) are rotatably matched on the auxiliary mounting seat, and the two transmission gears (5013) are meshed with each other. A sleeve is rotatably matched on the auxiliary mounting seat, and one of the transmission gears (5013) is connected to the rotating motor (5012) and is meshed with a half-shaped gear (5014), and the other transmission gear (5013) is interference-fitted with the sleeve, and a preservative film (5016) is provided on the sleeve, and the preservative film (5016) is matched with a nylon roller (5015).

9. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 1, characterized in that: The adhesive tape replenishing mechanism (502) comprises an external fixed block (5021) and a push rod motor (5022) mounted on a mounting frame, a movable block (5023) is mounted on the output end of the push rod motor (5022), the movable block (5023) is movably connected to the external fixed block (5021), a blade (5024) is mounted on the top of the external fixed block (5021), a lever (5028) is rotatably engaged in the external fixed block (5021), an adhesive tape shaft is mounted on the side of the inner cavity of the external fixed block (5021), an anti-loosening screw (5025) is mounted on the adhesive tape shaft, a spring anti-tightening gasket (5026) is arranged on the adhesive tape shaft, an adhesive tape (5027) is arranged on the adhesive tape shaft, a swing arm is arranged on the adhesive tape shaft, a replenishing push rod (5029) is mounted on the swing arm, and the swing arm is connected to the movable block (5023).

10. The leek quick-harvest and fully automatic leek harvesting and bundling machine according to claim 1, characterized in that: The rice-supporting device (3) is composed of two limiting mechanisms, and the spacing between the two limiting mechanisms changes from wide to narrow.

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