A potato seed tuber screening, cutting, and mixing equipment

Abstract

This invention discloses a potato seed tuber screening, cutting, and seed-coating device, belonging to the field of agricultural equipment technology. It includes a base and an outer rotating cylinder rotatably mounted on top of the base. A feeding conveyor belt is horizontally distributed on the outer side of the outer rotating cylinder's inlet end, and a discharging conveyor belt is horizontally distributed on the outer side of the outer rotating cylinder's outlet end. A seed-coating mechanism is installed inside the outer rotating cylinder; a pesticide application mechanism is located in the middle of the seed-coating mechanism; and a recovery mechanism is located on the outer side of the seed-coating mechanism to collect excess pesticide. The outer rotating cylinder drives the seed-coating mechanism to perform batch-wise flexible seed coating of potato tubers, while the pesticide application mechanism disperses and sprays pesticide onto the potato piles, improving the uniformity of seed coating. Simultaneously, the recovery mechanism collects excess pesticide sprayed by the pesticide application mechanism. This invention discloses a potato seed tuber screening, cutting, and seed-coating device with high operating efficiency and multi-functionality.

Description

Technical Field

[0001] This invention relates to the field of agricultural equipment technology, and in particular to a seed screening, cutting, and mixing device for potato seed tubers. Background Technology

[0002] Potato seed treatment equipment is an agricultural machine used to treat potato seed potatoes with chemicals before planting. Its main function is to evenly coat the surface of seed potatoes with fungicides, insecticides, growth regulators and other agents by stirring or spraying, so as to prevent soil-borne diseases and pests and promote germination and growth.

[0003] Existing potato seed treatment equipment mostly uses metal cylinders to treat cut potatoes with pesticides. However, in actual operation, this method has several drawbacks. First, the hard metal cylinders can cause mechanical friction during mixing, leading to impacts and scratches on the surface of the potato pieces, increasing the risk of disease infection. Second, the pesticide application devices in traditional seed treatment equipment are mostly single-point applications, which cannot guarantee the uniformity of pesticide application as the potato pieces move along the inside of the metal cylinder. Summary of the Invention

[0004] This invention discloses a potato seed tuber screening, cutting, and mixing device, which aims to solve the technical problems that need to be addressed in the existing potato mixing devices during the potato mixing and pesticide addition steps.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A potato seed screening, cutting, and seed mixing device includes a base and an outer rotating cylinder rotatably mounted on the top of the base. A feeding conveyor belt is horizontally distributed on the outer side of the feeding end of the outer rotating cylinder, and a discharging conveyor belt is horizontally distributed on the outer side of the discharging end of the outer rotating cylinder. A seed mixing mechanism for uniformly mixing potato pieces is provided inside the outer rotating cylinder. The seed mixing mechanism includes back plates fixed to both ends inside the outer rotating cylinder. Several evenly distributed inner rotating cylinders are fixedly installed between the two back plates. A screen bag is placed inside the inner rotating cylinder.

[0007] The seed mixing mechanism is equipped with a drug delivery mechanism in the middle.

[0008] The outer side of the seed mixing mechanism is equipped with a recycling mechanism for recovering surplus agents.

[0009] The outer rotating drum drives the seed-coating mechanism to perform flexible seed coating on potato chunks in batches. This, combined with the pesticide application mechanism, disperses and sprays pesticide onto the potato piles, improving the uniformity of seed coating. Meanwhile, the recycling mechanism recovers any excess pesticide sprayed by the pesticide application mechanism.

[0010] Based on traditional potato tuber coating equipment, this new equipment replaces the traditional method of directly coating potato tubers with the machine body by using an additional coating mechanism. This mechanism consists of a special flexible medium that works in conjunction with a spraying mechanism to gently coat the potato tubers. This coating mechanism can coat the potato tubers more gently and evenly. At the same time, the flexible deformation of the port can also wrap and load / unload the coated potato tubers. Furthermore, with the addition of a recycling mechanism, excess pesticide sprayed by the spraying mechanism can be recovered.

[0011] In a preferred embodiment, an elastic rope is wound and fixed to the outer sides of both ends of each of the screen bags. The elastic rope passes through the inside of the inner rotating cylinder and several ends of the elastic ropes located on the same side are connected to a winding reel driven by a servo motor. The servo motor is fixed to the outer side of the back plate, and the output end of the servo motor passes horizontally through the back plate and is connected to the winding reel.

[0012] By adding an inner rotating cylinder structure inside the outer rotating cylinder, which is fixed by a back plate, the potato piles entering the outer rotating cylinder are stacked in batches using the inner rotating cylinder, improving the uniformity of potato treatment. At the same time, a screen bag structure with elastic ropes is additionally suspended inside each inner rotating cylinder. The screen bag, in conjunction with the rotation of the rotating cylinder, flexibly stirs the potato pieces. Furthermore, two servo motors drive the winding of the elastic ropes, thereby changing the running shape of the screen bag and achieving different processing effects.

[0013] In a preferred embodiment, the drug feeding mechanism includes straight pipes horizontally distributed among several inner rotating cylinders. The straight pipes extend through the middle of the back plate, and a four-way nozzle is connected to the end of the straight pipe. The output end of the four-way nozzle extends sequentially into the interior of each inner rotating cylinder. A drug tank driven by a pump is mounted on the top of the base. The drug tank is distributed outside the feed end of the outer rotating cylinder, and the drug tank is connected to the straight pipe.

[0014] By installing a four-way spray pipe structure that connects to the medicine tank through straight pipes between several inner rotating cylinders, the four-way spray pipes are connected to the interior of several inner rotating cylinders. The pump operation introduces the medicine located inside the medicine tank into the interior of each inner rotating cylinder. In conjunction with the rotation of the cylinders, each potato tuber is treated with the medicine, ensuring the perfect operation of this equipment.

[0015] In a preferred embodiment, the recycling mechanism includes a first through slot that extends through the middle of each inner rotating cylinder, and a set of evenly distributed second through slots extending through the outer side of the outer rotating cylinder, the second through slots and the first through slots being symmetrically distributed.

[0016] By constructing a first and a second through-channel structure through the inner and outer rotating cylinders respectively, the excess pesticide after treating the potato tubers is discharged using a sieve bag, causing the pesticide to flow out along the inside of the first and second through-channels and into an additional receiving box, thus saving resources and improving the economic efficiency of traditional equipment.

[0017] In a preferred embodiment, a plurality of pins are provided on the outer side of the end of the inner rotating cylinder, and a plurality of openings are provided through the end of the screen bag, the openings being engaged with the outer side of the pins.

[0018] By setting pins and opening structures at the ends of the inner rotating cylinder and the screen bag respectively, the screen bag can be quickly disassembled and assembled using the pins and opening structures, which makes it convenient for workers to replace old and damaged screen bags and improves the ease of operation of this equipment.

[0019] As can be seen from the above, the potato seed screening, cutting, and mixing equipment provided by the present invention has the following technical effects.

[0020] Firstly, by adding an inner rotating cylinder structure to the outer rotating cylinder, which is fixed by the back plate, the traditional single-cylinder seed mixing equipment is transformed into a multi-cylinder structure. The inner rotating cylinder is used to stack the potato piles entering the outer rotating cylinder in batches, improving the uniformity of potato treatment. At the same time, each inner rotating cylinder has an additional suspended screen bag structure that is pulled by elastic ropes. The screen bag, in conjunction with the rotation of the rotating cylinder, gently mixes the potato pieces. Two servo motors drive the elastic ropes to rewind, thereby changing the running shape of the screen bag. When both ends are concave, the potato pieces are wrapped and mixed; when one end is larger and the other is smaller, the potato pieces can be loaded and unloaded. Thus, while ensuring the potato pieces are treated with the seed in a flexible and uniform manner, the functionality and operational efficiency of the traditional equipment are greatly improved.

[0021] Secondly, by installing a four-way spray pipe structure connected to the medicine tank through straight pipes between several inner rotating cylinders, the four-way spray pipes are connected to the interior of several inner rotating cylinders. The operation of the pump introduces the medicine located inside the medicine tank into the interior of each inner rotating cylinder. With the rotation of the cylinder, each potato block is treated with the medicine, ensuring the complete operation of the equipment. At the same time, the inner walls of the inner and outer rotating cylinders are respectively provided with a first channel and a second channel structure. The excess medicine after treating the potato blocks is discharged by a sieve bag, causing the medicine to flow out along the interior of the first and second channels and into the additional receiving box, thus saving resources and improving the economic efficiency of traditional equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0023] Figure 2 This is a schematic diagram of the outer rotating cylinder structure proposed in this invention.

[0024] Figure 3 This is a schematic diagram of the internal structure of the outer rotating cylinder proposed in this invention.

[0025] Figure 4 This is a schematic diagram of the internal structure of the inner rotating cylinder proposed in this invention.

[0026] Figure 5 This is an exploded view of the internal structure of the outer rotating cylinder proposed in this invention.

[0027] Figure 6 This is a schematic diagram of the seed mixing mechanism proposed in this invention.

[0028] Figure 7 This is a schematic diagram of the elastic rope structure proposed in this invention.

[0029] Figure 8 This is an exploded view of the internal structure of the inner rotating cylinder proposed in this invention.

[0030] Figure 9 This is a schematic diagram of the first through-slot structure proposed in this invention.

[0031] Figure 10 This is a schematic diagram of the drug delivery mechanism proposed in this invention.

[0032] Figure 11 This is a schematic diagram of the sun-drying bag proposed in this invention under normal conditions.

[0033] Figure 12 This is a schematic diagram showing the state of the sun-drying bag during material feeding according to the present invention.

[0034] Figure 13 This is a schematic diagram showing the rotating operation state of the sun-drying bag proposed in this invention.

[0035] In the diagram: 1. Base; 2. Outer rotating drum; 201. Guide plate; 3. Feeding conveyor belt; 4. Discharging conveyor belt; 5. Seed mixing mechanism; 501. Back plate; 502. Inner rotating drum; 5021. Pin; 503. Screen bag; 5031. Through-hole; 504. Elastic rope; 505. Servo motor; 506. Winding reel; 6. Drug application mechanism; 601. Straight pipe; 602. Four-way spray pipe; 603. Medicine tank; 6031. Water tank; 604. Transfer pipe; 605. Bend; 7. Recycling mechanism; 701. First through-channel; 702. Second through-channel; 703. Inner recessed channel; 704. Drug guiding channel. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] This invention discloses a potato seed tuber screening, cutting, and seed dressing device, which is mainly used in scenarios where potato tubers are treated with pesticides.

[0038] Reference Figures 1 to 13 A potato seed screening, cutting, and mixing device includes a base 1 and an outer rotating cylinder 2 rotatably mounted on the top of the base 1. A feeding conveyor belt 3 is horizontally distributed on the outer side of the feeding end of the outer rotating cylinder 2, and a discharging conveyor belt 4 is horizontally distributed on the outer side of the discharging end of the outer rotating cylinder 2. A mixing mechanism 5 for uniformly mixing potato pieces is provided inside the outer rotating cylinder 2. The mixing mechanism 5 includes a back plate 501 fixed to both ends inside the outer rotating cylinder 2. Several evenly distributed inner rotating cylinders 502 are fixedly installed between the two back plates 501. A screen bag 503 is placed inside each inner rotating cylinder 502.

[0039] The seed dressing mechanism 5 is equipped with a drug delivery mechanism 6 for introducing the drug in the middle.

[0040] A recycling mechanism 7 for recovering surplus pesticides is installed on the outside of the seed dressing mechanism 5;

[0041] The outer rotating drum 2 drives the seed-coating mechanism 5 to perform batch-wise flexible seed coating on potato tubers. In conjunction with the pesticide application mechanism 6, pesticides are applied to the potato piles in a dispersed manner to improve the uniformity of seed coating on potato tubers. At the same time, the recovery mechanism 7 recovers the excess pesticides sprayed by the pesticide application mechanism 6.

[0042] In this embodiment: the feeding conveyor belt 3 transports potato chunks into the outer rotating drum 2. The potato chunks entering the outer rotating drum 2 are then transported in batches into the seed mixing mechanism 5. Simultaneously, the outer rotating drum 2, which is activated at the same time, drives the seed mixing mechanism 5 to rotate. At the same time, the drug application mechanism 6 is activated to introduce the drug into the seed mixing mechanism 5. With the rotation of the outer rotating drum 2, the potato chunks located inside the seed mixing mechanism 5 are gently mixed. After a period of mixing, the seed mixing mechanism 5 changes its shape and discharges the mixed potato chunks from the inside of the outer rotating drum 2 to the top of the discharge conveyor belt 4. The running discharge conveyor belt 4 transports the mixed potato chunks away. At the same time as the seed mixing mechanism 5 is running, the excess drug sprayed by the drug application mechanism 6 is collected from the recycling mechanism 7 into a collection box placed in advance by the workers.

[0043] Specifically, the inner wall of the feed end of the outer rotating cylinder 2 is provided with a guide plate 201. The bottom end of the guide plate 201 is aligned with the outer side of several inner rotating cylinders 502, thereby guiding the potato chunks entering the outer rotating cylinder 2 and assisting the potato chunks to enter the inner rotating cylinder 502.

[0044] Reference Figures 3 to 9In a preferred embodiment, an elastic rope 504 is wound and fixed on the outer sides of both ends of each screen bag 503. The elastic rope 504 passes through the inside of the inner rotating drum 502, and the ends of several elastic ropes 504 located on the same side are connected to a winding reel 506 driven by a servo motor 505. The servo motor 505 is fixed to the outside of the back plate 501, and the output end of the servo motor 505 passes horizontally through the back plate 501 and is connected to the winding reel 506.

[0045] Potato chunks entering the outer rotating drum 2 are fed into each inner rotating drum 502 fixed to the back plate 501 in batches. The potato chunks inside the inner rotating drum 502 are then piled inside the screen bag 503. Simultaneously, the activated outer rotating drum 2 drives the inner rotating drum 502 and the screen bag 503 to rotate. At the same time, the drug-feeding mechanism 6 starts synchronously, introducing the drug into the inner rotating drum 502 and the screen bag 503. Along with the rotation of the outer rotating drum 2, two servo motors 505 start synchronously, winding the reel 506, causing the reel 506 to wind up the elastic rope 504, which in turn tightens the ends of the screen bag 503. The specific structure is as follows: Figure 13 As shown, this allows for flexible seed mixing of the potato chunks located inside the screen bag 503. After the seed mixing operation is completed, the servo motor 505, which is close to the feeding conveyor belt 4, starts and unwinds the winding reel 506, causing the taut elastic rope 504 to loosen its grip on the end of the screen bag 503. Meanwhile, the servo motor 505, which is away from the feeding conveyor belt 4, remains in the state of winding the winding reel 506. The specific structure is as follows: Figure 12 As shown, the inside of the screen bag 503 is inclined. At this time, with the continuous rotation of the inner rotating drum 502, the potato chunks after mixing will be discharged from the discharge port of the outer rotating drum 2 to the top of the discharge conveyor belt 4 along the inclined surface.

[0046] Among them, the discharge port of the outer rotating cylinder 2 is as follows Figure 4 As shown, the inner wall of its discharge port is inclined downwards, which allows the potato chunks to slide directly onto the surface of the discharge conveyor belt 4 below. The discharge conveyor belt 4 here can be a plate conveyor in the existing technology.

[0047] Furthermore, during the aforementioned rotating seed mixing process, two servo motors 505 can be controlled to alternately perform half-stroke retraction and expansion, causing the two ends of the screen bag 503 to continuously retract and expand, thereby driving the potato chunks inside the screen bag 503 to reciprocate back and forth along the axis of the inner rotating cylinder 502, further improving the seed mixing efficiency. It is worth noting that the servo motors 505 need to perform half-stroke forward and reverse rotation in this state, in order to prevent the loosening process from being too large and causing the surface of the screen bag 503 to tilt too much, thus preventing the seeds from being mixed from sliding directly down the inclined surface.

[0048] Specifically, the inner rotating cylinder 502 has several pins 5021 on the outer side of its end, and the end of the screen bag 503 has several through openings 5031. By engaging the through openings 5031 with the outer side of the pins 5021 and locking them with nuts, the screen bag 503 can be quickly installed, making it convenient for workers to replace the screen bag 503. The surface of the screen bag 503 has mesh openings to facilitate contact between the seed dressing agent and the potato tubers.

[0049] Reference Figures 1 to 4 , Figures 9 to 10 In a preferred embodiment, the drug feeding mechanism 6 includes straight pipes 601 horizontally distributed among several inner rotating cylinders 502. The straight pipes 601 extend through the middle of the back plate 501, and a four-way nozzle 602 is connected to the end of the straight pipe 601. The output end of the four-way nozzle 602 extends sequentially into the interior of each inner rotating cylinder 502. A medicine box 603 driven by a pump is mounted on the top of the base 1. The medicine box 603 is distributed outside the feed end of the outer rotating cylinder 2, and the medicine box 603 is connected to the straight pipes 601.

[0050] When the outer rotating cylinder 2 is started, it will drive the inner rotating cylinder 502 and the screen bag 503 to rotate. At the same time, the external pump connected to the medicine tank 603 will start synchronously, pressurizing the medicine from the inside of the medicine tank 603 into the inside of the straight pipe 601, and spraying it into the inside of each inner rotating cylinder 502 through the four-way spray pipe 602, so as to evenly treat the potato pieces located inside the screen bag 503.

[0051] Specifically, a connecting pipe 604 is connected to the end of the straight pipe 601, and a bend pipe 605 is connected to the bottom of the medicine tank 603. The ends of the connecting pipe 604 and the bend pipe 605 are rotatably connected. When the inner rotating cylinder 502 rotates, the connecting ends of the connecting pipe 604 and the bend pipe 605 will rotate synchronously without affecting the delivery of medicine into the straight pipe 601. A water tank 6031 is connected to the outside of the medicine tank 603 to facilitate the replenishment of water to the medicine inside the medicine tank 603.

[0052] Reference Figures 1 to 5 , Figure 9 In a preferred embodiment, the recycling mechanism 7 includes a first through groove 701 that is opened through the middle of each inner rotating cylinder 502, and a set of evenly distributed second through grooves 702 that are opened through the outer side of the outer rotating cylinder 2. The second through grooves 702 and the first through grooves 701 are symmetrically distributed.

[0053] While the seed treatment mechanism 5 is operating, the sieve bag 503 can be made of flexible materials such as cotton and linen, and has the characteristics of water absorption and permeability. The agent absorbed by the sieve bag 503 can help the potato tubers to be more fully coated with the seed treatment agent. The excess agent sprayed by the application mechanism 6 will pass through the sieve bag 503 and accumulate inside the inner rotating cylinder 502. As the inner rotating cylinder 502 rotates, the agent located inside the inner rotating cylinder 502 will flow out from the inside of the first channel 701 to the inside of the outer rotating cylinder 2, and then flow out from the inside of the outer rotating cylinder 2 through the second channel 702, thus falling into the collection box placed in advance by the workers for recycling.

[0054] Specifically, a drug guiding channel 704 is provided on the top of the base 1. The drug guiding channel 704 is located below the second channel 702. Workers place the collection box below the drug guiding channel 704 in advance. The medicine flowing out of the second channel 702 will flow along the inside of the drug guiding channel 704 and accumulate inside the collection box.

[0055] The inner wall of the outer rotating cylinder 2 is provided with a concave channel 703. The bottom end of the concave channel 703 is located in the middle of the second channel 702. The agent that enters the inner wall of the outer rotating cylinder 2 through the first channel 701 will slide along the inside of the concave channel 703 and flow out from the inside of the second channel 702.

[0056] Working principle: During use, workers transport the screened and chopped potatoes to the inside of the outer rotating drum 2 via the feed conveyor belt 3. The transported potato chunks will be located at the bottom of the feed inlet of the outer rotating drum 2 (e.g., Figure 2 (As shown in the shaded area), during this process, the outer rotating drum 2 is continuously rotated by an external motor and gears, and the inner rotating drum 502 also rotates together with the outer rotating drum 2. This causes the potato chunks that have entered the outer rotating drum 2 to continuously enter the interior of each inner rotating drum 502. The potato chunks that have entered the inner rotating drum 502 will accumulate inside the screen bag 503. When the conveying capacity of the feeding conveyor belt 3 reaches the single-time seed mixing capacity of the equipment, the feeding conveyor belt 3 stops conveying potato chunks. At this time, the potato chunks are in the screen bag 503 in the following state: Figure 11 As shown;

[0057] Immediately afterwards, the two servo motors 505 start synchronously, winding up the reel 506, which in turn winds up the elastic rope 504, causing the elastic rope 504 to tighten around both ends of the screen bag 503. The specific structure is as follows: Figure 13As shown, the outer rotating cylinder 2 simultaneously drives the inner rotating cylinder 502 and the screen bag 503 to rotate. At this time, the external pump connected to the medicine tank 603 starts synchronously, pressurizing the medicine from the inside of the medicine tank 603 into the inside of the straight pipe 601, and spraying it into the inside of each inner rotating cylinder 502 through the four-way spray pipe 602, so that the potato pieces inside the screen bag 503 are evenly treated with medicine. With the rotation of the outer rotating cylinder 2, the potato pieces inside the screen bag 503 will roll in the screen bag 503 due to their own gravity. Combined with the flexibility of the screen bag 503, flexible seed mixing processing of potato pieces can be achieved. During the rotation and seed mixing process, two servo motors 505 can be controlled to alternately run half-stroke retraction and expansion, causing the two ends of the screen bag 503 to continuously retract and expand, so that the surface of the screen bag 503 tilts back and forth, causing the potato pieces inside the screen bag 503 to roll back and forth, further improving the seed mixing efficiency.

[0058] After the seed mixing process is completed, the servo motor 505, which is close to the feeding conveyor belt in direction 4, starts and unwinds the winding reel 506, causing the taut elastic rope 504 to loosen its grip on the end of the screen bag 503. Meanwhile, the servo motor 505, which is away from the feeding conveyor belt in direction 4, remains in the winding state of the winding reel 506. The specific structure is as follows: Figure 12 As shown, the inside of the screen bag 503 is inclined. At this time, with the continuous rotation of the inner rotating drum 502, the potato chunks after mixing will be discharged from the outlet of the outer rotating drum 2 along the inclined surface and transported by the feeding conveyor belt 4.

[0059] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A potato seed tuber screening, cutting, and mixing device, comprising a base (1) and an outer rotating cylinder (2) rotatably mounted on the top of the base (1), characterized in that, A feeding conveyor belt (3) is horizontally distributed on the outer side of the feeding end of the outer rotating drum (2), and a discharging conveyor belt (4) is horizontally distributed on the outer side of the discharging end of the outer rotating drum (2). A seed mixing mechanism (5) for uniformly mixing potato chunks is provided inside the outer rotating drum (2). The seed mixing mechanism (5) includes a back plate (501) fixed to both ends inside the outer rotating drum (2). Several uniformly distributed inner rotating drums (502) are fixedly installed between the two back plates (501). A sieve bag (503) is placed inside each inner rotating drum (502). Each of the screen bags (503) has an elastic rope (504) wrapped around its outer ends. The elastic rope (504) passes through the inside of the inner rotating drum (502), and the ends of several elastic ropes (504) on the same side are connected to a winding reel (506) driven by a servo motor (505). The servo motor (505) is fixed to the outside of the back plate (501), and the output end of the servo motor (505) passes horizontally through the back plate (501) and is connected to the winding reel (506). The seed mixing mechanism (5) is provided with a drug delivery mechanism (6) for introducing the drug in the middle. The outside of the seed mixing mechanism (5) is provided a recycling mechanism (7) for recovering surplus agents. The outer rotating drum (2) drives the seed mixing mechanism (5) to perform flexible seed mixing on potato pieces in batches. The drug application mechanism (6) sprays the potato pile with drugs in a dispersed manner to improve the uniformity of seed mixing on potato pieces. At the same time, the recovery mechanism (7) recovers the excess drug sprayed by the drug application mechanism (6).

2. The potato seed tuber screening, cutting, and mixing equipment according to claim 1, characterized in that, The drug feeding mechanism (6) includes a straight pipe (601) horizontally distributed among several inner rotating cylinders (502). The straight pipe (601) extends through the middle of the back plate (501). A four-way nozzle (602) is connected to the end of the straight pipe (601). The output end of the four-way nozzle (602) extends sequentially into the interior of each inner rotating cylinder (502). A medicine box (603) driven by a pump is mounted on the top of the base (1). The medicine box (603) is distributed outside the feed end of the outer rotating cylinder (2), and the medicine box (603) is connected to the straight pipe (601).

3. The potato seed tuber screening, cutting, and mixing equipment according to claim 1, characterized in that, The recycling mechanism (7) includes a first through groove (701) that is opened through the middle of each inner rotating cylinder (502), and a set of evenly distributed second through grooves (702) that are opened through the outer side of the outer rotating cylinder (2). The second through grooves (702) and the first through grooves (701) are symmetrically distributed.

4. The potato seed tuber screening, cutting, and mixing equipment according to claim 1, characterized in that, The inner rotating cylinder (502) has several pins (5021) on its outer side at the end, and the end of the sieve bag (503) has several through openings (5031) that engage with the outer side of the pins (5021).

5. The potato seed tuber screening, cutting, and mixing equipment according to claim 2, characterized in that, The end of the straight pipe (601) is connected to a connecting pipe (604), and the bottom of the medicine box (603) is connected to a bent pipe (605). The ends of the connecting pipe (604) and the bent pipe (605) are rotatably connected.

6. The potato seed tuber screening, cutting, and mixing equipment according to claim 2, characterized in that, A water tank (6031) is connected through the outside of the medicine box (603).

7. The potato seed tuber screening, cutting, and mixing equipment according to claim 3, characterized in that, The inner wall of the outer rotating cylinder (2) is provided with a concave channel (703), and the bottom end of the concave channel (703) is distributed in the middle of the second through groove (702).

8. The potato seed tuber screening, cutting, and mixing equipment according to claim 3, characterized in that, The top of the base (1) is provided with a drug guiding channel (704), which is located below the second channel (702).

9. The potato seed tuber screening, cutting, and mixing equipment according to claim 1, characterized in that, The inner wall of the feed end of the outer rotating cylinder (2) is provided with a guide plate (201), and the bottom end of the guide plate (201) is aligned with the outer side of several inner rotating cylinders (502).

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