A washing production line for bean crops

Abstract

The present invention relates to a washing production line for bean crops, comprising a frame, a screening device, a washing device, a drying device and a driving motor; the screening device is arranged above the rear end of the frame, and the screening device can slide forward and backward to screen the bean crops and convey them downward; the washing device is arranged on the frame, and the rear end of the washing device is in the screening device, and the front end thereof extends forward along the frame to receive the bean crops conveyed downward by the screening device and convey them forward, and washes the bean crops in the process of conveying them forward; the drying device is arranged at the front side of the frame, and the inlet of the drying device is connected to the front end of the washing device to receive the bean crops washed by the washing device and then dry them; the driving motor is fixed at the rear side of the frame, and is respectively connected to and drives the screening device and the washing device. The production line operates in an assembly line, can automatically screen, wash and dry the bean crops, has a humanized structural design and high working efficiency.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a cleaning production line for bean crops. Background Art

[0002] Beans refer to all legumes that produce pods. Common bean crops in life include soybeans, peanuts, broad beans, peas, green beans, lentils, etc. Before processing bean crops, they need to be manually screened out with dustpans to remove impurities such as shells. In addition, they also need to clean the sand, gravel, dust, etc. that are mixed in them. Manually completing the above operations consumes a lot of labor and is inefficient. Summary of the invention

[0003] To sum up, in order to overcome the shortcomings of the prior art, improve production efficiency and overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a bean cleaning production line for bean crops, which is highly practical, efficient and has the advantage of resource saving.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a washing production line for bean crops, comprising a frame, a screening device, a washing device, a drying device and a driving motor; the screening device is arranged above the rear end of the frame, and the screening device can slide forward and backward to screen the bean crops and convey them downward; the washing device is arranged on the frame, and the rear end of the washing device is in the screening device, and the front end thereof extends forward along the frame to receive the bean crops conveyed downward by the screening device and convey them forward, and wash the bean crops in the process of conveying forward; the drying device is arranged on the front side of the frame, and the inlet of the drying device is connected to the front end of the washing device to receive the bean crops washed by the washing device, and dry the washed bean crops and output them forward; the driving motor is fixed on the rear side of the frame, and is respectively connected to and drives the screening device and the washing device.

[0005] The beneficial effects of the present invention are as follows: the assembly line operation can automatically screen, clean and dry the bean crops, the structural design is humanized and the working efficiency is high.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows:

[0007] Furthermore, the screening device comprises a base, a screening box and a crank; the base is a frame structure, which is fixed upwardly to the rear end of the frame, and a rolling groove is provided on the top of the base along the front-rear direction; the screening box is a box structure with an opening facing upward, and a detachable screening plate with a mesh structure is provided at the bottom; a roller is rotatably provided on the lower side of the screening box, and the roller is rollably located in the rolling groove;

[0008] Connecting rods extending outward are fixed on both sides of the screening box; the cranks are arranged in a one-to-one correspondence with the connecting rods, and one end of the crank is rotatably fixed on the base and corresponds to a position below the corresponding connecting rod, and the other end is connected to the corresponding connecting rod through a pushing mechanism; the driving motor is connected to and drives the crank to rotate, thereby realizing the reciprocating sliding of the screening box back and forth to screen the bean crops.

[0009] The beneficial effect of adopting the above further technical solution is: achieving the screening of bean crops.

[0010] Furthermore, the pushing mechanism includes a sliding rod, a guide rail and a slider; the sliding rod can be slid forward and backward and is installed on the outside of the base and corresponds to the position of the corresponding crank; the guide rail is a radially vertically arranged arc strip structure, which is fixed in the middle of the sliding rod, and the upper end of the guide rail is connected to the corresponding connecting rod; an arc-shaped guide groove is provided in the guide rail, and the slider can be slidably located in the guide groove and connected to the other end of the crank.

[0011] The beneficial effect of adopting the above further technical solution is: the selection of bean crops is realized by adopting the crank slider mechanism, which can truly simulate the manual selection action and is highly efficient.

[0012] Furthermore, a first rotating shaft and a second rotating shaft are rotatably provided on the rear side of the frame; the output end of the driving motor is connected to one end of the first rotating shaft through a first belt, and the other end of the first rotating shaft is connected to the middle part of the second rotating shaft through a second belt, and the two ends of the second rotating shaft are respectively connected by a third belt and drive the corresponding crank to rotate.

[0013] The beneficial effect of adopting the above further technical solution is: the cranks on both sides of the frame can move simultaneously by driving the motor.

[0014] Further, the cleaning device includes a conveyor belt, a water tank, a water pipe, a water pump, a plurality of nozzles and a plurality of supporting rollers; the supporting rollers are rotatably mounted on the frame along the front and rear directions; the conveyor belt is provided with drainage holes, which are sleeved on the supporting rollers and circulate back and forth with the rotation of the supporting rollers, and the rear end of the conveyor belt is located in the base and corresponds to the bottom of the screening box, and a material selection funnel is fixed in the base corresponding to the screening box and the rear end of the conveyor belt; the water tank is fixed on the frame and corresponds to the bottom of the conveyor belt, and its opening is arranged upward; a filter plate is provided in the water tank, and a drain port is provided on the side of the water tank; the nozzles are distributed above the conveyor belt, and the water pump is fixed on the frame and connects the water tank with the nozzles through the water pipe;

[0015] The supporting roller at the front is a positioning roller, and a tensioning mechanism for adjusting the position of the positioning roller forward and backward to adjust the tightness of the conveyor belt is provided at the position corresponding to the positioning roller on the frame;

[0016] The output end of the driving motor is provided with a first sprocket, the rearmost supporting roller is provided with a second sprocket, and the first sprocket is linked to the second sprocket via a chain.

[0017] The beneficial effects of adopting the above further technical solution are: cleaning the screened bean crops, achieving water circulation, and saving water resources.

[0018] Furthermore, the tensioning mechanism includes a slide and a bolt; the slide can be slidably installed on the front two sides of the frame and correspond to the position of the positioning roller, and the positioning roller can be rotatably installed on the slide; one end of the bolt is connected to the front part of the slide, and the other end extends forward and passes through the front end side wall of the frame; a nut for adjusting the position of the slide forward and backward is provided on the bolt.

[0019] The beneficial effect of adopting the above further technical solution is: adjusting the tightness of the conveyor belt.

[0020] Furthermore, the drying device includes an auxiliary feeding box, a guide plate and a guide pipe; the auxiliary feeding box is fixed on the front side of the frame, and the rear end of the auxiliary feeding box is higher than the front end; the rear end of the guide plate is fixed on the frame and corresponds to the lower part of the rear end of the conveyor belt, and its front end extends obliquely downward and is connected to the entrance of the rear end of the auxiliary feeding box and transports the cleaned bean crops into the auxiliary feeding box; the guide pipe is fixed on the front side of the auxiliary feeding box, and the rear end of the guide pipe is lower than the front end, the outlet at the front end of the auxiliary feeding box is connected to the entrance of the rear end of the guide pipe to continue to transport the cleaned beans forward to the guide pipe for draining first, and the bottom of the rear end of the guide pipe is provided with a drainage port for draining the drained water; an electric heating wire for heating and drying the drained bean crops is provided in the side wall of the guide pipe, and a discharge port for discharging the dried bean crops is provided at the bottom of the front end, and a feeding mechanism for transporting the drained bean crops forward is provided in the guide pipe.

[0021] The beneficial effect of adopting the above further technical solution is: draining and drying the washed bean crops.

[0022] Furthermore, a water filter net is provided at the top of the drain outlet, and steam outlets are provided on the material guide pipe and the auxiliary feed box.

[0023] The beneficial effect of adopting the above further technical solution is: completing the drainage and exhausting of the steam generated by drying.

[0024] Furthermore, a cavity is provided in the side wall of the material guiding tube, and the heating wire is located in the cavity.

[0025] Furthermore, the feeding mechanism includes a driving shaft and a spiral blade; the driving shaft is rotatably arranged in the guide tube, and one end of the driving shaft extends out of the guide tube; a feeding motor is arranged outside the guide tube, and the output end of the feeding motor is linked to one end of the driving shaft; the spiral blade is in the guide tube and fixed on the driving shaft and transports the drained bean crops forward as the driving shaft rotates.

[0026] The beneficial effect of adopting the above further solution is that the bean crops in the guide tube are transported forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the present invention;

[0028] Figure 2 This is the structural diagram of the screening device and the cleaning device after assembly;

[0029] Figure 3 for Figure 2 A magnified view of;

[0030] Figure 4 for Figure 2 B enlarged view

[0031] Figure 5 This is the structural diagram of the cleaning device and the drying device after assembly;

[0032] Figure 6 A cross-sectional view of a drying device.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Frame, 2. Drive motor, 3. Base, 4. Screening box, 5. Crank, 6. Rolling groove, 7. Connecting rod, 8. Slide bar, 9. Guide rail, 10. Slider, 11. Guide groove, 12. First rotating shaft, 13. Second rotating shaft, 14. First belt, 15. Second belt, 16. Third belt, 17. Conveyor belt, 18. Water tank, 19. Water pipe, 20. Water pump, 21. Nozzle, 22. Support roller, 23. Material selection drain Bucket, 24, drain outlet, 25, positioning roller, 26, chain, 27, slide seat, 28, bolts, 29, nuts, 30, auxiliary feed box, 31, guide plate, 32, guide pipe, 33, drain outlet, 34, heating wire, 35, discharge port, 36, drive shaft, 37, spiral blade, 38, feeding motor, 39, screening device, 40, cleaning device, 41, drying device, 42, steam outlet, 43, water filter. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0036] like Figure 1 As shown, a washing production line for bean crops comprises a frame 1, a screening device 39, a washing device 40, a drying device 41 and a driving motor 2. The screening device is arranged above the rear end of the frame 1, and the screening device can slide forward and backward to screen the bean crops and convey them downward. The washing device 40 is arranged on the frame 1, and the rear end of the washing device 40 is in the screening device, and the front end thereof extends forward along the frame 1 to receive the bean crops conveyed downward by the screening device and convey them forward, and wash the bean crops in the process of conveying them forward. The drying device 41 is arranged on the front side of the frame 1, and the inlet of the drying device 41 is connected to the front end of the washing device 40 to receive the bean crops washed by the washing device 40, and dry the washed bean crops and convey them forward. The driving motor 2 is fixed on the rear side of the frame 1, and is respectively connected to and drives the screening device 39 and the washing device 40. The "front and back" mentioned above and below are determined according to the movement direction of the reference bean crop, that is, the reference bean crop is at the back at the beginning and gradually moves forward over time.

[0037] like Figure 2 and 3As shown, the screening device includes a base 3, a screening box 4 and a crank 5. The base 3 is a frame structure, which is fixed upward at the rear end of the frame 1, and a rolling groove 6 is provided on the top of the base 3 along the front-to-back direction. The screening box 4 is a box structure with an opening facing upward, and a detachable screening plate with a mesh structure is provided at the bottom. The screening plate is detachably arranged at the bottom of the screening box 4, and the screening of various beans can be satisfied by equipping the screening plates with different apertures, which has high practicality. A roller is rotatably provided at the lower side of the screening box 4, and the roller is rollable in the rolling groove 6. Connecting rods 7 extending outward are fixed on both sides of the screening box 4. The crank 5 is arranged in a one-to-one correspondence with the connecting rod 7, and one end of the crank 5 is rotatably fixed on the base 3 and corresponds to the position below the corresponding connecting rod 7, and the other end is connected to the corresponding connecting rod 7 through a pushing mechanism. The driving motor 2 is connected to and drives the crank 5 to rotate, thereby realizing the reciprocating sliding of the screening box 4 to screen the bean crops. The pushing mechanism includes a slide bar 8, a guide rail 9 and a slider 10. The slide bar 8 is mounted on the outside of the base 3 and corresponds to the position of the corresponding crank 5 so as to be slidable forward and backward. The guide rail 9 is a circular arc strip structure arranged vertically in a radial direction, which is fixed in the middle of the slide bar 8, and the upper end of the guide rail 9 is connected to the corresponding connecting rod 7. A circular arc guide groove 11 is provided in the guide rail 9, and the slider 10 is slidably located in the guide groove 11 and connected to the other end of the crank 5.

[0038] like Figure 2As shown, the cleaning device 40 includes a conveyor belt 17, a water tank 18, a water pipe 19, a water pump 20, a plurality of nozzles 21 and a plurality of supporting rollers 22. The supporting rollers 22 are rotatably mounted on the frame 1 along the front and rear directions. The conveyor belt 17 is provided with drainage holes, which are sleeved on the supporting rollers 22 and circulate forward and backward as the supporting rollers 22 rotate. The rear end of the conveyor belt 17 is located in the base 3 and corresponds to the bottom of the screening box 4. A material selection funnel 23 is fixed in the base 3 between the screening box 4 and the rear end of the conveyor belt 17. The water tank 18 is fixed on the frame 1 and corresponds to the bottom of the conveyor belt 17, and its opening is arranged upward. A filter plate is provided in the water tank 18, and a water outlet 24 is provided on the side of the water tank 18. The nozzles 21 are distributed above the conveyor belt 17, and the water pump 20 is fixed on the frame 1 and connects the water tank 18 with the nozzles 21 through the water pipe 19. The water pump 20 draws the water in the water tank 18 into the water pipe 19, and then sprays it toward the conveyor belt 17 through the nozzle 21, thereby washing the bean crops on the conveyor belt 17. The washing water flows back to the water tank 18 through the drainage hole on the conveyor belt 17 and can be recycled. A filter can be placed inside the water tank 18 to filter impurities such as particles in the circulating water. After the water in the water tank 18 has been used for a certain period of time, the water is discharged through the drain port 24 and then new water is injected.

[0039] The support roller 22 at the front is a positioning roller 25, and a tensioning mechanism for adjusting the position of the positioning roller 25 to adjust the tightness of the conveyor belt 17 is provided at the position corresponding to the positioning roller 25 on the frame 1. Figure 4 As shown, the tensioning mechanism includes a slide 27 and a bolt 28. The slide 27 is slidably mounted on the front two sides of the frame 1 and corresponds to the position of the positioning roller 25, and the positioning roller 25 is rotatably mounted on the slide 27. One end of the bolt 28 is connected to the front part of the slide 27, and the other end thereof extends forward and passes through the front end side wall of the frame 1. A nut 29 for adjusting the position of the slide 27 forward and backward is provided on the bolt 28. By rotating the nut 29, the slide 27 is driven to slide forward and backward through the bolt 28, thereby realizing the forward and backward movement of the positioning roller 25 to tighten or loosen the conveyor belt 17, and finally adjusting the tightness of the conveyor belt 17 to a suitable range.

[0040] A first rotating shaft 12 and a second rotating shaft 13 are rotatably provided at the rear side of the frame 1. The output end of the driving motor 2 is linked to one end of the first rotating shaft 12 through a first belt 14, and the other end of the first rotating shaft 12 is linked to the middle of the second rotating shaft 13 through a second belt 15. The two ends of the second rotating shaft 13 are respectively connected by a third belt 16 and drive the corresponding crank 5 to rotate. A first sprocket is provided at the output end of the driving motor 2, and a second sprocket is provided at the rearmost supporting roller 22. The first sprocket is linked to the second sprocket through a chain 26. Through the above design, the driving motor 2 drives the screening device and the cleaning device at the same time, that is, one driving motor 2 can drive the screening box 4 to slide forward and backward and the conveyor belt 17 to circulate forward and backward, thereby simplifying the structure of the whole machine, reducing the manufacturing cost, and having high economy.

[0041] like Figure 5 As shown, the drying device 41 includes an auxiliary feeding box 30, a guide plate 31 and a guide pipe 32. The auxiliary feeding box 30 is fixed to the front side of the frame 1, and the rear end of the auxiliary feeding box 30 is higher than the front end. The rear end of the guide plate 31 is fixed to the frame 1 and corresponds to the lower part of the rear end of the conveyor belt 17. The front end of the guide plate 31 extends obliquely downward and connects to the entrance of the rear end of the auxiliary feeding box 30 and transports the washed bean crops into the auxiliary feeding box 30. The guide pipe 32 is fixed to the front side of the auxiliary feeding box 30, and the rear end of the guide pipe 32 is lower than the front end. The outlet of the front end of the auxiliary feeding box 30 is connected to the entrance of the rear end of the guide pipe 32 to continue to transport the washed beans forward to the guide pipe 32 for drainage. The bottom of the rear end of the guide pipe 32 is provided with a drain port 33 for draining the water, and a water filter net 43 is provided at the top of the drain port 33. Most of the water in the washed bean crops will flow back into the water tank 18, and a small part of the water will enter the guide plate 31 through the auxiliary feed box 30. Since the guide pipe 32 is set with a lower rear end and a higher front end, and a drain port 33 is set at the lower front end, the water carried by the bean crops will be drained through the drain port 33 under the action of gravity to complete the draining. An electric heating wire 34 is set in the side wall of the guide pipe 32 to heat and dry the drained bean crops, and a discharge port 35 is set at the bottom of the front end to discharge the dried bean crops. A feeding mechanism is set in the guide pipe 32 to transport the drained bean crops forward. The drained bean crops will continue to be transported forward in the guide pipe 32 by the feeding mechanism, and the bean crops will be heated and dried during the forward transportation of the guide pipe 32, and finally discharged through the discharge port 35. The guide pipe 32 and the auxiliary feed box 30 are both provided with a steam outlet 42. Steam is generated during the heating and drying process of the bean crops, and the steam is discharged in time through the steam outlet 42 to prevent the steam accumulation in the guide pipe 32 and the auxiliary feed box 30 from accumulating too high a pressure and causing an explosion.

[0042] like Figure 6 As shown, a cavity is provided in the side wall of the guide tube 32, and the electric heating wire 34 is located in the cavity. The feeding mechanism includes a driving shaft 36 and a spiral blade 37. The driving shaft 36 is rotatably arranged in the guide tube 32, and one end of the driving shaft 36 extends out of the guide tube 32. A feeding motor 38 is provided outside the guide tube 32, and the output end of the feeding motor 38 is linked to one end of the driving shaft 36. The feeding motor 38 drives the driving shaft 36 to rotate after deceleration. The spiral blade 37 is in the guide tube 32 and fixed on the driving shaft 36, and conveys the drained bean crops forward as the driving shaft 36 rotates.

[0043] The following is an explanation of the working process of the cleaning production line:

[0044] The driving motor 2 is started, and after deceleration, it drives the screening box 4 to slide forward and backward and the conveyor belt 17 to circulate forward and backward. The bean crops are first added to the screening box 4, and the vibration formed by the sliding of the screening box 4 forward and backward completes the screening of the bean crops. The screened bean crops fall onto the conveyor belt 17 through the selection funnel 23 and move forward with the conveyor belt 17. The bean crops will be sprayed and cleaned by the nozzle 21 during the forward transportation on the conveyor belt 17. The nozzle 21 can be arranged in multiple rows, with multiple nozzles in each row, to ensure that the water spraying range covers the conveyor belt 17, thereby improving the cleaning effect. The washed bean crops enter the guide pipe 32 through the guide plate 31 and the auxiliary feed box 30 under the action of their own gravity, and are first drained at the rear end of the guide pipe 32, and then driven by the spiral blade 37 to move forward in the guide pipe 32 after draining. The bean crops will be heated and dried by the electric heating wire 34 during the forward movement of the guide pipe 32, and finally discharged through the discharge port 35.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A washing production line for legume crops, characterized in that: The invention comprises a frame (1), a screening device (39), a cleaning device (40), a drying device (41) and a driving motor (2); the screening device (39) is arranged above the rear end of the frame (1), and the screening device (39) can slide forward and backward to screen the bean crops and transport them downward; the cleaning device (40) is arranged on the frame (1), and the rear end of the cleaning device (40) is located in the screening device (39), and the front end of the cleaning device (40) extends forward along the frame (1) to receive the screening device (39) moving forward. The bean crops transported downward are transported forward, and the bean crops are cleaned during the forward transport process; the drying device (41) is arranged on the front side of the frame (1), and the inlet of the drying device (41) is connected to the front end of the cleaning device (40) to receive the bean crops cleaned by the cleaning device (40), and the cleaned bean crops are dried and output forward; the driving motor (2) is fixed on the rear side of the frame (1), and is respectively connected to and drives the screening device (39) and the cleaning device (40); The screening device (39) comprises a base (3), a screening box (4) and a crank (5); the base (3) is a frame structure, which is fixed upwardly to the rear end of the frame (1), and a rolling groove (6) is provided on the top of the base (3) along the front-rear direction; the screening box (4) is a box structure with an opening facing upward, and its bottom is a detachable screening plate with a mesh structure; a roller is rotatably provided on the lower side of the screening box (4), and the roller is rollably located in the rolling groove (6); Connecting rods (7) extending outward are fixed to both sides of the screening box (4); the cranks (5) and the connecting rods (7) are arranged in a one-to-one correspondence, and one end of the crank (5) is rotatably fixed on the base (3) and corresponds to a position below the corresponding connecting rod (7), and the other end is connected to the corresponding connecting rod (7) through a pushing mechanism; the driving motor (2) is connected to and drives the crank (5) to rotate, thereby realizing the reciprocating sliding of the screening box (4) back and forth to screen the bean crops; The pushing mechanism comprises a sliding rod (8), a guide rail (9) and a slider (10); the sliding rod (8) is slidably mounted on the outside of the base (3) and corresponds to the position of the corresponding crank (5); the guide rail (9) is a radially vertically arranged arc strip structure, which is fixed to the middle of the sliding rod (8), and the upper end of the guide rail (9) is connected to the corresponding connecting rod (7); an arc-shaped guide groove (11) is provided in the guide rail (9), and the slider (10) is slidably located in the guide groove (11) and connected to the other end of the crank (5); The cleaning device (40) comprises a conveyor belt (17), a water tank (18), a water pipe (19), a water pump (20), a plurality of nozzles (21) and a plurality of support rollers (22); the support rollers (22) are rotatably mounted on the frame (1) along the front and rear directions; the conveyor belt (17) is provided with drainage holes, which are sleeved on the support rollers (22) and circulate forward and backward as the support rollers (22) rotate, and the rear end of the conveyor belt (17) is located within the base (3) and corresponds to the bottom of the screening box (4). A material selection funnel (23) is fixed in the base (3) between the screening box (4) and the rear end of the conveyor belt (17); the water tank (18) is fixed on the frame (1) and corresponds to the bottom of the conveyor belt (17), and its opening is arranged upward; a filter plate is arranged in the water tank (18), and a water discharge port (24) is arranged on the side of the filter plate; the nozzles (21) are distributed above the conveyor belt (17), and the water pump (20) is fixed on the frame (1) and connects the water tank (18) and the nozzles (21) through the water pipe (19); The support roller (22) at the front is a positioning roller (25), and a tensioning mechanism for adjusting the position of the positioning roller (25) forward and backward to adjust the tightness of the conveyor belt (17) is provided at a position on the frame (1) corresponding to the positioning roller (25); The output end of the driving motor (2) is provided with a first sprocket, the rearmost supporting roller (22) is provided with a second sprocket, and the first sprocket is linked to the second sprocket via a chain (26).

2. The washing production line for legumes according to claim 1, characterized in that: A first rotating shaft (12) and a second rotating shaft (13) are rotatably provided on the rear side of the frame (1); the output end of the driving motor (2) is linked to one end of the first rotating shaft (12) via a first belt (14); the other end of the first rotating shaft (12) is linked to the middle of the second rotating shaft (13) via a second belt (15); and both ends of the second rotating shaft (13) are respectively connected via a third belt (16) and drive the corresponding crank (5) to rotate.

3. The washing production line for legumes according to claim 1, characterized in that: The tensioning mechanism comprises a slide seat (27) and a bolt (28); the slide seat (27) is slidably mounted on the front two sides of the frame (1) and corresponds to the position of the positioning roller (25), and the positioning roller (25) is rotatably mounted on the slide seat (27); one end of the bolt (28) is connected to the front part of the slide seat (27), and the other end thereof extends forward and passes through the front end side wall of the frame (1); a nut (29) for adjusting the position of the slide seat (27) forward and backward is provided on the bolt (28).

4. The washing production line for legumes according to claim 1, characterized in that: The drying device (41) comprises an auxiliary feeding box (30), a guide plate (31) and a guide pipe (32); the auxiliary feeding box (30) is fixed to the front side of the frame (1), and the auxiliary feeding box (30) is arranged with a high rear end and a low front end; the rear end of the guide plate (31) is fixed to the frame (1) and corresponds to the lower part of the rear end of the conveyor belt (17), and the front end of the guide plate (31) extends obliquely downward and is connected to the entrance of the rear end of the auxiliary feeding box (30) and conveys the washed bean crops into the auxiliary feeding box (30); the guide pipe (32) is fixed to the front side of the auxiliary feeding box (30), The guide pipe (32) is arranged with a lower rear end and a higher front end; the outlet at the front end of the auxiliary feed box (30) is connected to the inlet at the rear end of the guide pipe (32) so that the washed beans are continuously conveyed forward into the guide pipe (32) for drainage; a drainage outlet (33) for draining the drained water is provided at the bottom of the rear end of the guide pipe (32); a heating wire (34) for heating and drying the drained bean crops is provided in the side wall of the guide pipe (32); a discharge outlet (35) for discharging the dried bean crops is provided at the bottom of the front end; and a feeding mechanism for conveying the drained bean crops forward is provided in the guide pipe (32).

5. The washing production line for legumes according to claim 4, characterized in that: A water filter net (43) is provided at the top of the drainage port (33), and a steam outlet (42) is provided on both the material guide pipe (32) and the auxiliary material feeding box (30).

6. The washing production line for legumes according to claim 4, characterized in that: A cavity is provided in the side wall of the material guide tube (32), and the heating wire (34) is located in the cavity.

7. The washing production line for legumes according to any one of claims 4 to 6, characterized in that: The feeding mechanism comprises a driving shaft (36) and a spiral blade (37); the driving shaft (36) is rotatably arranged in the guide tube (32), and one end of the driving shaft (36) extends out of the guide tube (32); a feeding motor (38) is arranged outside the guide tube (32), and the output end of the feeding motor (38) is linked to one end of the driving shaft (36); the spiral blade (37) is located in the guide tube (32) and is fixed on the driving shaft (36), and conveys the drained bean crops forward as the driving shaft (36) rotates.

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