Potato digging, grading and subpackaging all-in-one machine

Abstract

The utility model discloses a digging, grading and subpackaging all-in-one machine for potatoes, which relates to the technical field of agricultural machinery and comprises a seedling crushing module, a digging and soil separating module and a grading and subpackaging module, and the digging and soil separating module and the grading and subpackaging module are sequentially arranged at the tail of the seedling crushing module. The digging and soil dividing module is used for digging potatoes in soil and conveying the potatoes into the grading and subpackaging module, the grading and subpackaging module is used for grading and subpackaging the potatoes and comprises a material receiving opening connected to a potato discharging opening in the tail of the digging and soil dividing module, and the material receiving opening is fixedly installed on the rack. A screening face is arranged below the material receiving opening and used for grading screening of potatoes, a plurality of obliquely-arranged falling hoppers are arranged below the screening face, and bagging rings arranged in the vertical direction are installed on the tail portions of the falling hoppers in a communicating mode. Automation of digging, conveying, grading, weighing and packaging of potatoes is achieved, a large amount of labor is reduced, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an integrated machine for digging, grading and packaging potatoes. Background Art

[0002] The existing harvesters in China have shortcomings such as the fruits being placed in the fields, low efficiency of manual collection, incomplete separation of potatoes from the soil and inability to grade them. There is a certain gap between them and the automation of foreign combined machines. However, the import of foreign equipment has limitations such as region, technology and after-sales service.

[0003] There is a great demand for potato harvesters in China, but the structural design of the machinery is not sufficient. For example, my country's 4U-1 shovel-type potato harvester is used in conjunction with a tractor head. Although the potato harvesting rate is as high as 99%, it still requires a lot of manual labor for picking and packaging, and the degree of automation is low. The above-mentioned existing mechanical equipment has the following disadvantages: 1. Manual picking and sorting is time-consuming and inefficient; 2. There is no packaging design, the degree of automation is not enough, and a lot of labor is still required. Therefore, we propose a potato digging, grading and packaging integrated machine that is suitable for a large area in China, low cost, and strong practicality. Utility Model Content

[0004] The main purpose of the utility model is to provide an integrated machine for digging, grading and packaging potatoes, which can sort potatoes of different sizes through different belt gaps and make them fall into different drop hoppers. When the potatoes on weighing trays of each level reach a specified weight, they will fall into heat-sealed bags for hot knife packaging and packaging into bags, thereby reducing a lot of labor, reducing costs, realizing automation, and effectively solving the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The potato digging, grading and packaging integrated machine comprises a vine breaking module and a digging and soil separation module and a grading and packaging module which are sequentially arranged at the tail of the vine breaking module. The vine breaking module is used for breaking potato stems and leaves on the ground, the digging and soil separation module is used for digging potatoes in the soil and conveying the potatoes to the grading and packaging module, the grading and packaging module is used for grading and packaging potatoes, the grading and packaging module comprises a receiving port connected to the potato discharge port at the tail of the digging and soil separation module, the receiving port is fixedly installed on the frame, a screen surface is arranged below the receiving port, the screen surface is used for grading and screening potatoes, a plurality of inclined dropping hoppers are arranged below the screen surface, and the tail of the dropping hopper is connected to a vertically arranged A bagging ring, a packing module and a weighing module are arranged in sequence below the bagging ring; the packing module includes a sealing pulley support surface arranged below the bagging ring and matching the bagging ring, a through hole is provided on the upper end surface of the sealing pulley support surface, a guide rail frame is installed below the through hole, a heat sealing ring is slidably mounted on the guide rail frame, the heat sealing ring slides toward the center of the through hole, two heating blocks are installed on the arc surface of the heat sealing ring close to the long tube bag, a cutting knife moving groove is arranged between the two heating blocks, a cutting rod is rotatably installed below the through hole relative to the position of the heat sealing ring, the end of the cutting rod rotates along a pressing column arranged in the vertical direction, and a cutting blade matching the cutting knife moving groove is installed on the circumferential surface of the pressing column.

[0007] Preferably, the screen surface is composed of several belts arranged side by side, a potato transport channel is formed between two adjacent belts, and the spacing between the transport channels gradually increases along the conveying direction of the potatoes.

[0008] Preferably, the guide rail frame is fixedly mounted on a fixed base, and a rotating cylinder one is fixedly mounted on a side of the circumferential surface of the fixed base close to the guide rail frame, a turntable is fixedly mounted on the piston rod of the rotating cylinder one, an eccentrically rotatably connected connecting rod is provided on the upper end surface of the turntable, and the other end of the connecting rod is rotatably connected to the heat sealing ring; a rotating cylinder is fixedly mounted on a side of the circumferential surface of the fixed base close to the cutting rod, and the piston rod of the rotating cylinder two is rotatably connected to the cutting rod.

[0009] Preferably, the inner wall of the through hole extends upward to form a clamping disk mating ring, and the circumferential surface of the clamping disk mating ring is movably sleeved with a sealing pulley, and the upper end surface of the sealing pulley support surface is rotatably mounted with an auxiliary pulley that matches the sealing pulley, and the auxiliary pulley and the sealing pulley are connected by a synchronous belt, and two staggered clamping rod mating rods are fixedly mounted on the sealing pulley support surface, and two clamping rods are rotatably mounted on the sealing pulley, and a through sliding groove is provided on the upper end surface of the clamping rod, and the two clamping rod mating rods are slidably assembled in the two sliding grooves respectively.

[0010] Preferably, a motor is fixedly mounted on the lower end surface of the sealing pulley support surface, and the motor shaft of the motor is fixedly connected to the axis of the auxiliary pulley.

[0011] Preferably, the weighing module includes an outer frame fixedly mounted on the frame, a weighing pallet rack matching the number of packaging modules is fixedly mounted on the outer frame, a weighing pallet is rotatably mounted on the weighing pallet rack, and the weighing pallet is located directly below the fixed base.

[0012] Preferably, the rice seedling cutting module includes an organic box, in which a reel and a central auger are rotatably installed, a stationary blade is fixedly installed at the lower front edge of the machine box, and a moving blade matching the stationary blade is slidably installed above the stationary blade along the length direction of the stationary blade, and the moving blade performs linear reciprocating motion along the length direction of the stationary blade.

[0013] Preferably, the excavation and soil division module includes a vehicle frame, a digging shovel is installed at the front end of the vehicle frame, two conveyor belts arranged side by side are installed inside the vehicle frame, and a number of evenly distributed baffles are installed between the two conveyor belts, and the baffles are arranged horizontally.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. It adopts an integrated device design. The vine breaking module is used to break the potato stems and leaves on the ground, and the soil digging and separating module is used to dig the potatoes in the soil and transport the potatoes to the grading and packaging module. The grading and packaging module is used for grading and packaging potatoes, which saves more labor;

[0016] 2. The screen surface is composed of multiple belts. The spacing between the beginning and the end of the belts changes from small to large, forming different gaps. Potatoes are transported on the belts. When the diameter of the potato is smaller than the gap between the adjacent belts, it falls into the hopper, realizing automatic grading of potatoes.

[0017] 3. The elliptical soil-shaking roller is designed to make the conveyor belt shake, so as to shake off the soil adhering to the surface of the potatoes. Combined with the drop hopper structure with a hollow strip structure at the bottom, the soil adhering to the surface of the potatoes is greatly reduced, which is convenient for improving the subsequent potato packaging quality.

[0018] 4. The heat sealing of the long tube bag is achieved by designing a dynamic heat sealing ring that can move along the axial direction of the guide rail in conjunction with a pressing column, and the radius of the heat sealing ring is twice the radius of the bagging ring, thereby reducing the deformation of the long tube bag when the package is interrupted;

[0019] 5. By dividing the heating block into two parts, leaving a gap in the middle as the movement track of the cutting blade, when the cutting and pressing end of the cutting rod moves from one end to the other end against the heating module, the upper and lower parts are heat-sealed at the clamping point between the pressing column and the heating block, and the cutting blade tip at the center of the pressing column also moves from the cutting blade moving groove to the other end with the pressing column, thereby realizing the automatic packaging form of interrupting the upper and lower seals in the middle;

[0020] 6. Two clamping rods are designed to close and deflate the long tube bag before the seal is cut off, ensuring that there are no potatoes at the heat seal, thus improving the safety of the device;

[0021] 7. Add two limit rods on the fixed base to provide limit protection to prevent damage to parts caused by excessive rotation of the cutting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the entire all-in-one machine proposed in this embodiment;

[0023] Figure 2 Schematic diagram of the structure of the grading module in this embodiment;

[0024] Figure 3 Schematic diagram of the internal structure of the grading module in this embodiment;

[0025] Figure 4 Schematic diagram of the local structure of the rack in this embodiment;

[0026] Figure 5 This is a schematic diagram of the structure of the packaging module and the weighing module in this embodiment;

[0027] Figure 6 This is a schematic diagram of the internal structure of the packaging module in this embodiment;

[0028] Figure 7 Schematic diagram of the structure of the heating plate in this embodiment;

[0029] Figure 8 This is a schematic diagram of the structure of the cutting rod in this embodiment;

[0030] Fig. 9 Schematic diagram of the structure of the weighing module in this embodiment;

[0031] Fig.10 This is a schematic diagram of the structure of the rice seedling cutting module in this embodiment;

[0032] Fig.11 It is a schematic diagram of the structure of the excavation and soil division module in this embodiment.

[0033] In the figure: 1, rice seedling shredder module; 11, machine box; 12, reel; 13, central auger; 14, stationary blade; 15, moving blade;

[0034] 2. Excavation and soil separation module; 21. Vehicle frame; 22. Excavation shovel; 23. Conveyor belt; 24. Baffle; 25. Soil shaking roller;

[0035] 3. Grading and packaging module; 31. Frame; 32. Material receiving port; 33. Screen surface; 321. Belt; 322. Pulley; 323. Universal coupling; 34. Drop hopper; 35. Bagging ring;

[0036] 4. Packing module; 41. Sealing pulley support surface; 42. Clamping plate matching ring; 43. Clamping rod matching rod; 44. Sealing pulley; 45. Auxiliary pulley; 46. Motor; 47. Clamping rod; 48. Slide; 49. Fixed base; 410. Guide rail frame; 411. Heat sealing ring; 412. Heating block; 413. Cutting knife moving groove; 414. Cutting rod limiting rod; 415. Rotating cylinder; 416. Cutting rod; 417. Pressing column; 418. Cutting blade;

[0037] 5. Weighing module; 51. External frame; 52. Weighing pallet; 53. Weighing pallet frame. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figure 1-Figure 11As shown, the present embodiment proposes a potato digging, grading and packaging integrated machine, including a seedling crushing module 1 and a digging and soil separation module 2 and a grading and packaging module 3 arranged in sequence at the tail of the seedling crushing module 1. The seedling crushing module 1 is used to crush potato stems and leaves on the ground, the digging and soil separation module 2 is used to dig potatoes in the soil and transport the potatoes to the grading and packaging module 3, and the grading and packaging module 3 is used for grading and packaging potatoes, wherein the grading and packaging module 3 includes a receiving port 32 connected to the potato discharge port at the tail of the digging and soil separation module 2, the receiving port 32 is fixedly mounted on the frame 31, and a screen surface 33 is arranged below the receiving port 32, and the screen surface 33 3 is used for grading and screening potatoes. In this embodiment, the screen surface 33 is composed of several belts 321 arranged in parallel. A potato transportation channel is formed between two adjacent belts 321, and the spacing of the transportation channels gradually increases along the conveying direction of the potatoes. When the diameter of the potato is greater than the spacing of the transportation channels, the potato falls, so that potatoes of different diameters fall at different positions in the conveying channel, thereby achieving grading and screening of potatoes. Several inclined drop hoppers 34 are arranged below the screen surface 33. The tail of the drop hopper 34 is connected and installed with a bagging ring 35 arranged in the vertical direction. The potatoes fall into the bagging ring 35 along the inclined surface of the drop hopper 34. In this embodiment, three drop hoppers 34 are provided, and the bottom of the drop hopper 34 is a hollow strip structure, which is convenient for the dirt adhering to the potatoes to fall off; the potatoes are packaged in a bottomless long tube bag with upper and lower sealed packaging interrupted, and the long tube bag is pre-set on the circumferential surface of the bagging ring 35. The potatoes after grading fall into the long tube bag through the bagging ring 35, and the sealing and cutting operations of the long tube bag and the weighing operations of the potatoes are completed by the packaging module 4 and the weighing module 5 arranged in sequence just below the bagging ring 35. On the one hand, since the ends of the several belts 321 are radially distributed, the gap of the potato transportation channel formed between two adjacent belts 321 increases from one end to the other, which causes the ends of all the belts 321 to be not on the same straight line; on the other hand, in order to allow the potatoes to have acceleration along the belts 321 to offset part of the friction, so that they can pass through the transportation channel and prevent them from spinning in place, the several belts 321 are arranged to be tilted downward toward the drop hopper 34. Through the tilted arrangement, the belts 321 on both sides of the potatoes form a speed difference. The speed difference causes the potatoes to rotate while moving along the belts 321. Through the rotation, the small diameter of the potatoes is aligned with the transportation channel and falls to complete the grading and screening; in order to realize belt grading, a universal coupling 323 is used for the power transmission of the axis with a certain angle to the axis, that is, the belt 321 is sleeved on the pulley 322, and the two adjacent pulleys 322 are connected by the universal coupling 323 for transmission.

[0042] On the basis of the above scheme, since the long tube bag adopts a bottomless long tube bag with interrupted upper and lower sealing packaging, that is, the cut is in the middle of the two heat-sealed seals, on the other hand, the heat-sealing operation cannot interfere with the normal filling of potatoes into the long tube bag before the packaging process arrives, so it is designed to be a dynamic heat-sealing ring that can move back and forth in the horizontal direction. Specifically, the packaging module 4 includes a sealing pulley support surface 41 arranged directly below the bagging ring 35 and matching the bagging ring 35. A through hole is provided on the upper end surface of the sealing pulley support surface 41. In order to ensure that the long tube bag can enter the through hole smoothly, the diameter of the through hole is designed to be the diameter of the bagging ring 35. The through hole is twice the diameter of the through hole, and a guide frame 410 is installed below the through hole, and a heat sealing ring 411 is slidably mounted on the guide frame 410, and the heat sealing ring 411 slides toward the center of the through hole, and two heating blocks 412 are installed on the arc surface of the heat sealing ring 411 close to the long tube bag, and a cutting knife moving groove 413 is arranged between the two heating blocks 412, and a cutting rod 416 is rotatably installed below the through hole relative to the position of the heat sealing ring 411, and the end of the cutting rod 416 rotates along a clamping column 417 arranged in the vertical direction, and a cutting blade 418 matching the cutting knife moving groove 413 is installed on the circumferential surface of the clamping column 417. When the long tube bag is filled with potatoes of a set weight, the heat sealing ring 411 slides along the guide frame 410 toward the direction close to the long tube bag to the limit distance, and the cutting rod 416 rotates toward the direction close to the heat sealing ring 411. When the pressing column 417 moves from one end to the other end along the heating block 412, the long tube bag is heat-sealed at the clamping position of the pressing column 417 and the two heating blocks 412 distributed up and down. During this process, the cutting blade 418 also moves from the cutting blade moving groove 413 to the other end together with the pressing column 417, thereby realizing the packaging form of upper and lower sealing and interruption in the middle. The radius of the heat sealing ring 411 is twice the radius of the bagging ring 35, thereby reducing the deformation of the long tube bag when it is interrupted during packaging, and also facilitating the easy movement of the cutting rod 416.

[0043] In this embodiment, the guide rail frame 410 is fixedly installed on the fixed base 49, and a rotating cylinder 1 is fixedly installed on the circumferential surface of the fixed base 49 on one side close to the guide rail frame 410, and a turntable is fixedly installed on the piston rod of the rotating cylinder 1, and the upper end surface of the turntable is eccentrically connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the heat sealing ring 411, and the disk is driven to rotate by the rotation of the piston rod of the rotating cylinder, and the rotating disk drives the heat sealing ring 411 to slide on the guide rail frame 410 through the connecting rod; a rotating cylinder 415 is fixedly installed on the circumferential surface of the fixed base 49 on one side close to the cutting rod 416, and the piston rod of the rotating cylinder 2 is rotatably connected to the cutting rod 416, and the cutting rod 416 is driven to rotate by the rotation of the piston rod of the rotating cylinder 415. Since the cutting rod 416 cuts the package in a rotating manner, in order to prevent the cutting rod 416 from excessively rotating and causing damage to parts, two cutting rod limiting rods 414 are installed on the upper end surface of the fixed base 49. The two cutting rod limiting rods 414 limit the rotation angle of the cutting rod 416 to play a limiting protection role.

[0044] On the basis of the above scheme, when the packaging module 4 is running, there must be no potatoes at the heat-sealed part, otherwise the mechanism will be damaged. To ensure that no potatoes are poured from the long tube bag into the sealing and cutting part during the packaging process, two clamping rods 47 are designed to close and deflate the long tube bag before the sealing and cutting, and the sealing and breaking are all performed below the clamping mouth. Specifically, the inner wall of the through hole extends upward to form a clamping disc matching ring 42, and the circumferential surface of the clamping disc matching ring 42 is movably sleeved with a sealing pulley 44, and the upper end surface of the sealing pulley support surface 41 is rotatably installed with an auxiliary pulley 45 adapted to the sealing pulley 44, and the auxiliary pulley 45 and the sealing pulley 44 are connected by a synchronous belt. Two staggered clamping rods 43 are fixedly installed on the sealing pulley support surface 41, and two clamping rods 47 are rotatably installed on the sealing pulley 44. The upper end surface of the clamping rod 47 is provided with a through slide groove 48, and the two clamping rods 43 are respectively slidably assembled in the two slide grooves 48; in this embodiment, the sealing pulley 44 has a large diameter and a small height, and a pulley limit fork is provided to prevent the contact end of the synchronous belt from tilting; when the sealing pulley 44 rotates counterclockwise, the two clamping rods 47 are closed, and when the sealing pulley 44 rotates clockwise, the two clamping rods 47 are opened, which not only prevents potatoes from interfering with the sealing quality but also does not affect the long tube belt from falling from the bagging ring 35. A motor 46 is fixedly installed on the lower end surface of the sealing pulley support surface 41, and the motor shaft of the motor 46 is fixedly connected to the axis of the auxiliary pulley 45, and the sealing pulley 44 is driven to rotate by the motor 46.

[0045] Specifically, the weighing module 5 includes an outer frame 51 fixedly mounted on the frame 31, and a weighing plate frame 53 matching the number of the packaging modules 4 is fixedly mounted on the outer frame 51, and a weighing plate 52 is rotatably mounted on the weighing plate frame 53, and the weighing plate 52 is located directly below the fixed base 49. In this embodiment, the weighing plate 52 is in a horizontal state before the packaging process begins. When the potatoes in the bag on the weighing plate 52 reach 30kg, the weighing plate 52 is unlocked and tilted downward after the packaging process is completed, and the potato bags that have been packaged fall to the ground; the hinge shaft of the weighing plate 52 is connected to the motor shaft of the drive motor, and the drive motor has a locking function, which uses the magnetic force generated by the electromagnet to brake the drive motor. When the weighing plate 52 is locked, the weight of the potato bag is increased, and the weight of the potato bag is increased. When the weight of the potato bag is increased ... When the weight on the plate 52 reaches the set weight of 30kg, the drive motor is powered off and no longer locked. At this time, the weighing plate 52 rotates freely under the weight of the potatoes, and the packed long bags fall down. Through calculation, the drive motor uses a 7GU-20K speed-regulating servo motor, which has a power of 400W, a maximum output torque of 60.9N·M, and an output speed of n=50r / min. In order to prevent the potatoes from being damaged by a sudden drop and collision, the weighing plate 52 is designed to slide in the vertical direction, that is, after the potatoes fall on the weighing plate 52, as the weight increases, the weighing plate 52 will move longitudinally until the weighing plate 52 drops the potato bag, and the weighing plate 52 rises to the starting point again, waiting for the next weighing operation.

[0046] Specifically, the seedling crushing module 1 includes an organic box 11, in which a reel 12 and a central auger 13 are rotatably installed, a stationary blade 14 is fixedly installed at the lower front edge of the organic box 11, and a movable blade 15 adapted to the stationary blade 14 is slidably installed above the stationary blade 14 along the length direction of the stationary blade 14. The movable blade 15 makes a linear reciprocating motion along the length direction of the stationary blade 14 to form a shearing, thereby cutting off the stem part of the potato, so that the stem and leaf part of the potato is collected by the reel 12 into the interior of the organic box 11, and the potato stem and leaf are crushed by the rotating central auger 13, and the crushed stem and leaf are finally discharged from the organic box 11. In this embodiment, the linear reciprocating motion of the movable blade 15 adopts a connecting rod driving structure, that is, one end of the movable blade 15 is rotatably connected to a connecting rod, and the other end of the connecting rod is eccentrically rotatably connected to bevel tooth one, bevel tooth one is meshingly connected to bevel tooth two, and bevel tooth two is rotatably installed on the machine box 11. The rotation of bevel tooth one drives the connecting rod to move, and the other end of the connecting rod drives the movable blade 15 to perform linear reciprocating motion along the length direction of the stationary blade 14.

[0047] Specifically, the excavation and soil separation module 2 includes a vehicle frame 21, a digging shovel 22 is installed at the front end of the vehicle frame 21, two conveyor belts 23 arranged side by side are installed inside the vehicle frame 21, and several evenly distributed baffles 24 are installed between the two conveyor belts 23. The baffles 24 are arranged horizontally. The potatoes in the soil are excavated by the vehicle frame 21 and pushed and accumulated. The accumulated potatoes pass through the tooth grooves of the digging shovel 22 and contact the baffles 24. The vehicle frame 21 drives the baffles 24 to move toward the direction close to the receiving port 32. The potatoes are stuck between two adjacent baffles 24 and transmitted upward until they fall into the receiving port 32. In this process, in order to clean some of the soil adhering to the surface of the potatoes, a soil shaking roller 25 is rotatably installed inside the vehicle frame 21, and the circumferential surface of the soil shaking roller 25 is close to the inner wall surface of the conveyor belt 23. The conveyor belt 23 is an elliptical structure. The rotation of the elliptical soil shaking roller 25 causes the conveyor belt 23 to shake, causing the soil on the potatoes to fall off.

[0048] The integrated machine proposed in the utility model is connected to the tractor in a three-point suspension, and the main power is provided by the tractor head and distributed to the three modules in turn; when working, the rolling of the reel 12 is linked with the cutting of the moving blade 15, and the potatoes are transported to the central auger 13 to crush the stems and leaves to reduce the impact of the stems and leaves; the tractor drives the integrated machine forward, and the digging shovel 22 digs out the potatoes, and the potatoes are moved through the conveyor belt after transmission. During the transmission process, the soil shaking roller 25 vibrates to shake off the soil, and then enters the receiving port 32 of the grading and packaging module 3; the belt 321 is driven by the pulley 322, and the belt 321 moves from right to left. When the potatoes enter from the receiving port 32, they will fall on the screen surface 33 through the narrow mouth. As the gap between the belts 321 continues to increase, the potatoes will fall into the drop hopper 34 below during the transmission to the left because the diameter is smaller than the gap of the belt 321 to complete the screening; after screening, they fall into the drop hoppers 34 of different levels, and the weight reaches a certain value, and the packaging module 4 is activated to package them into bagged potatoes.

[0049] It should be noted that the power transmission structure between the three modules and the tractor head adopts currently known equipment. Since it is not the focus of the technical solution to be protected by this application, it will not be described in detail.

[0050] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A potato digging, grading and packaging integrated machine, comprising a seedling crushing module (1), and a digging and soil separation module (2) and a grading and packaging module (3) arranged in sequence at the tail of the seedling crushing module (1), wherein the seedling crushing module (1) is used to crush potato stems and leaves on the ground, the digging and soil separation module (2) is used to dig potatoes in the soil and transport the potatoes to the grading and packaging module (3), and the grading and packaging module (3) is used to grade and package potatoes, and is characterized in that: The grading and packaging module (3) comprises a receiving port (32) connected to the potato discharge port at the rear of the digging and soil separation module (2); the receiving port (32) is fixedly mounted on the frame (31); a screen surface (33) is arranged below the receiving port (32); the screen surface (33) is used for grading and screening potatoes; a plurality of inclined drop hoppers (34) are arranged below the screen surface (33); a bagging ring (35) arranged in a vertical direction is connected to the rear of the drop hopper (34); a packing module (4) and a weighing module (5) are arranged in sequence directly below the bagging ring (35); the packing module (4) comprises a sealing belt wheel support surface (41) arranged directly below the bagging ring (35) and matching the bagging ring (35); the sealing belt wheel support surface (41) is arranged directly below the bagging ring (35) and matches ... A through hole is provided on the upper end surface of the support surface (41), a guide rail frame (410) is installed below the through hole, a heat sealing ring (411) is slidably mounted on the guide rail frame (410), the heat sealing ring (411) slides toward the center of the through hole, two heating blocks (412) are installed on the arc surface of the heat sealing ring (411) close to the long tube bag, a cutting knife moving groove (413) is arranged between the two heating blocks (412), a cutting rod (416) is rotatably installed below the through hole relative to the position of the heat sealing ring (411), the end of the cutting rod (416) rotates along a clamping column (417) arranged in the vertical direction, and a cutting blade (418) matching the cutting knife moving groove (413) is installed on the circumferential surface of the clamping column (417).

2. The potato digging, grading and packaging integrated machine according to claim 1, characterized in that: The screen surface (33) is composed of a plurality of belts (321) arranged side by side, a potato transport channel is formed between two adjacent belts (321), and the spacing between the transport channels gradually increases along the potato conveying direction.

3. The potato digging, grading and packaging integrated machine according to claim 1, characterized in that: The guide rail frame (410) is fixedly mounted on the fixed base (49); a rotating cylinder 1 is fixedly mounted on a side of the circumferential surface of the fixed base (49) close to the guide rail frame (410); a piston rod of the rotating cylinder 1 is fixedly mounted on a turntable; an upper end surface of the turntable is eccentrically rotatably connected to a connecting rod; the other end of the connecting rod is rotatably connected to a heat sealing ring (411); a rotating cylinder (415) is fixedly mounted on a side of the circumferential surface of the fixed base (49) close to the cutting rod (416); and a piston rod of the rotating cylinder 2 is rotatably connected to the cutting rod (416).

4. The potato digging, grading and packaging integrated machine according to claim 1, characterized in that: The inner wall of the through hole extends upward to form a clamping disc matching ring (42), and a sealing belt wheel (44) is movably sleeved on the circumferential surface of the clamping disc matching ring (42). An auxiliary belt wheel (45) adapted to the sealing belt wheel (44) is rotatably mounted on the upper end surface of the sealing belt wheel support surface (41), and the auxiliary belt wheel (45) and the sealing belt wheel (44) are connected by a synchronous belt. Two staggered clamping rod matching rods (43) are fixedly mounted on the sealing belt wheel support surface (41), and two clamping rods (47) are rotatably mounted on the sealing belt wheel (44). A through slide groove (48) is provided on the upper end surface of the clamping rod (47), and the two clamping rod matching rods (43) are respectively slidably assembled in the two slide grooves (48).

5. The potato digging, grading and packaging integrated machine according to claim 4, characterized in that: A motor (46) is fixedly mounted on the lower end surface of the sealing pulley support surface (41), and a motor shaft of the motor (46) is fixedly connected to the axis of the auxiliary pulley (45).

6. The potato digging, grading and packaging integrated machine according to claim 1, characterized in that: The weighing module (5) comprises an outer frame (51) fixedly mounted on the frame (31), a weighing support frame (53) whose number matches the number of the packaging modules (4) is fixedly mounted on the outer frame (51), a weighing support plate (52) is rotatably mounted on the weighing support frame (53), and the weighing support plate (52) is located directly below the fixed base (49).

7. The potato digging, grading and packaging integrated machine according to claim 1, characterized in that: The rice seedling chopping module (1) comprises an organic box (11), a reel (12) and a central auger (13) are rotatably mounted in the organic box (11), a stationary blade (14) is fixedly mounted at the lower front edge of the organic box (11), a moving blade (15) matching the stationary blade (14) is slidably mounted above the stationary blade (14) along the length direction of the stationary blade (14), and the moving blade (15) performs linear reciprocating motion along the length direction of the stationary blade (14).

8. The potato digging, grading and packaging integrated machine according to claim 1, characterized in that: The excavation and soil separation module (2) comprises a vehicle frame (21), a digging shovel (22) is installed at the front end of the vehicle frame (21), two conveyor belts (23) arranged side by side are installed inside the vehicle frame (21), and a plurality of evenly distributed baffles (24) are installed between the two conveyor belts (23), and the baffles (24) are arranged horizontally.

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