Grain processing conveyor with screening and dust removing functions

Abstract

The grain processing conveyor with the screening and dust removing functions comprises a rack, a switching mechanism and a feeding mechanism, a screening mechanism is arranged at the front end of the bottom wall of the rack, a dust removing mechanism is arranged at the upper end of the rack, and the switching mechanism comprises a discharging groove, a fixing frame, a pulley seat, a pulley and a U-shaped sliding groove. U-shaped sliding grooves are fixedly connected to the left side and the right side of the rack correspondingly, the rear ends of the U-shaped sliding grooves incline upwards, fixing frames are fixedly connected to the left side and the right side of the discharging groove correspondingly, pulley bases are rotationally connected to the opposite outer side faces of the upper ends of the two fixing frames correspondingly, and pulleys are rotationally connected to the front ends and the rear ends of the opposite outer side faces of the two pulley bases correspondingly; and the outer cambered surfaces of the pulleys are connected to the interiors of the adjacent U-shaped sliding grooves in a sliding manner. According to the grain processing conveyor with the screening and dust removing functions, screening and conveying of corn and wheat are achieved through the two layers of filter screens and the switching mechanism, and meanwhile dust removing operation can be conducted on the feeding position and the grains.

Description

Technical Field

[0001] The invention relates to the technical field of grain processing and conveying, in particular to a grain processing conveyor with screening and dust removal functions. Background Art

[0002] In order to improve the efficiency of grain transportation and reduce the waste of manpower and material resources, grain conveyors came into being. Grain conveyors are mainly used for grain transportation in farmlands, processing plants and other places.

[0003] Grain will go through the process of drying before being sold. The harvested grain will contain dust, stones, empty shells and other impurities. It needs to be screened and dusted before processing. When transporting grain, a vibrating screen is usually used for screening in the middle. The grain after screening and impurity removal continues to be transported, but the vibration will cause the dust attached to the grain to fly. At the same time, due to the height difference when unloading, the unloading position also carries a lot of dust, affecting the transportation environment. Different grains use different filters for screening, and the screening also requires corresponding filters, which is more troublesome. For this reason, we propose a grain processing conveyor with screening and dust removal functions. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a grain processing conveyor with screening and dust removal function, which can realize the screening and conveying of two kinds of grains, corn and wheat, through two layers of filter screens and a switching mechanism, and can also perform dust removal operations on the feeding position and grains.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a food processing conveyor with screening and dust removal function, comprising a frame, a switching mechanism and a feeding mechanism;

[0006] A screening mechanism is provided at the front end of the bottom wall of the frame, and a dust removal mechanism is provided at the upper end of the frame;

[0007] The switching mechanism includes a material discharge chute, a fixed frame, a pulley seat, a pulley and a U-shaped slide. The left and right sides of the frame are fixedly connected with the U-shaped slide. The rear end of the U-shaped slide is inclined upward. The left and right sides of the material discharge chute are fixedly connected with the fixed frames. The opposite outer side surfaces of the upper ends of the two fixed frames are rotatably connected with the pulley seats. The front and rear ends of the opposite outer side surfaces of the two pulley seats are rotatably connected with pulleys. The outer arc surfaces of the pulleys are respectively slidably connected to the inside of the adjacent U-shaped slides. The material discharge chute is arranged in coordination with the screening mechanism.

[0008] The feeding mechanism is arranged at the upper end of the rear side of the frame. The feeding mechanism and the dust removal mechanism are arranged in coordination with each other. Through two layers of filter screens and a switching mechanism, the screening and transportation of corn and wheat grains can be realized, and dust removal operations can be performed on the feeding position and grains at the same time.

[0009] Furthermore, the switching mechanism also includes a support rod, which is fixedly connected between the rear ends of the two fixing frames to facilitate pulling the discharge chute.

[0010] Furthermore, the screening mechanism comprises a particle screening frame, a screen 1, a screen 2, a screen 3, a spring, a limit column, a base, a discharge port 1, a side wall and a discharge port 2. The bottom wall of the frame is fixedly connected with evenly distributed limit columns, the front and rear ends of the lower surface of the particle screening frame are fixedly connected with the base, the base is slidably connected to the upper ends of the vertically adjacent limit columns, the outsides of the limit columns are movably sleeved with springs, and the springs are respectively located between the bottom wall of the frame and the lower surface of the adjacent base. The left and right sides of the particle screening frame are fixedly connected with side walls, and the two side walls are fixedly connected with screen 1, screen 2 and screen 3 from top to bottom in sequence. The filter hole size of screen 2, the filter hole size of screen 1 and the filter hole size of screen 3 become smaller in sequence. The front side of the upper surface of the particle screening frame is fixedly connected with the particle discharge port, the front end of screen 3 is fixedly connected with discharge port 1, the front end of screen 2 is fixedly connected with discharge port 2, and the front end of the discharge chute is located between screen 2 and screen 3 to achieve screening.

[0011] Furthermore, the screening mechanism also includes a vibration motor and a mounting seat. The lower surface of the particle screening frame is fixedly connected to the mounting seat, and the rear side of the mounting seat is fixedly connected to the vibration motors symmetrically distributed on the left and right to drive each screen to shake.

[0012] Furthermore, the feeding mechanism includes a feeding hopper, a protective frame, a motor, a shaking plate, an eccentric wheel assembly and a dust removal port. The feed hopper is fixedly connected to the rear side of the upper end of the frame, and the dust removal port is provided at the rear end of the feed hopper. The front side of the lower end of the feed hopper is rotatably connected to the shaking plate, and the lower end of the feed hopper is rotatably connected to a rotating shaft. The outside of the rotating shaft is provided with evenly distributed eccentric wheel assemblies, and the eccentric wheel assemblies are all arranged in coordination with the shaking plate. The lower end of the left side of the feed hopper is fixedly connected to the motor, and the output shaft of the motor is fixedly connected to the rotating shaft. The lower end of the feed hopper is fixedly connected to the protective frame, and the protective frame is located at the upper end of the shaking plate to facilitate grain feeding.

[0013] Furthermore, the eccentric wheel assembly includes a limit plate, an eccentric wheel and an annular connecting rod. The external fixed sleeve of the rotating shaft is provided with evenly distributed eccentric wheels. The connection position between the eccentric wheel and the rotating shaft deviates from the center of the eccentric wheel. The outer arc surface of the eccentric wheel is slidably connected with an annular connecting rod. The rear ends of the annular connecting rods are rotatably connected to the lower surface of the shaking plate through a pin shaft. The left and right sides of the eccentric wheel are fixedly connected with limit plates. The annular connecting rods are respectively slidably connected between two limit plates located on the same eccentric wheel, driving the shaking plate to shake.

[0014] Furthermore, the dust removal mechanism includes an air inlet, a dust removal box, a dust outlet and a barb. The upper end of the frame is fixedly connected to the dust removal box, the left side of the dust removal box is provided with an air inlet, the right side of the dust removal box is provided with a dust outlet, the upper and lower ends of the dust outlet are fixedly connected with evenly distributed barbs, and the rear side of the dust removal box is connected to the dust removal port to achieve dust removal at two positions.

[0015] Furthermore, a collection box is fixedly connected to the rear side of the bottom wall of the frame, and the upper end of the collection box is located at the lower end of the rear side of the second screen to collect lighter magazines.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The aperture of screen one can pass through complete wheat grains, the aperture of screen two can pass through complete corn grains, and the aperture of screen three is smaller than the size of complete wheat grains. By switching the position of the feed chute, the screening of corn and wheat can be switched without changing the filter, which is more convenient to use.

[0018] 2. The fan supplies air to the dust removal box, and the air is discharged from the dust outlet. A negative pressure environment is formed between the dust removal outlet and the inside of the frame. The dust at the feed hopper position and the dust generated during screening are sucked into the dust removal box, and then enter the dust outlet with the wind, which greatly reduces the dust generated during grain transportation and screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the screening mechanism of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the switching mechanism of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the feeding mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the exploded structure of the eccentric wheel assembly of the present invention;

[0025] Figure 7 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0026] In the figure: 1-frame, 2-screening mechanism, 201-particle screening frame, 202-vibration motor, 203-screen 1, 204-mounting seat, 205-screen 2, 206-screen 3, 207-spring, 208-limiting column, 209-base, 210-discharge port 1, 211-side wall, 212-discharge port 2, 3-switching mechanism, 31-handrail, 32-discharge trough, 33-fixed frame, 3 4-pulley seat, 35-pulley, 36-U-shaped slide, 4-feeding mechanism, 41-feeding hopper, 42-protective frame, 43-motor, 44-shaking plate, 45-eccentric wheel assembly, 451-limiting plate, 452-eccentric wheel, 453-annular connecting rod, 46-dust removal port, 5-dust removal mechanism, 51-air inlet, 52-dust removal box, 53-dust outlet, 54-hook, 6-collection box, 7-controller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-7 This embodiment provides a food processing conveyor with screening and dust removal function, including a frame 1, a switching mechanism 3, a feeding mechanism 4 and a controller 7, and the controller 7 is arranged on the left side of the frame 1.

[0029] A screening mechanism 2 is provided at the front end of the bottom wall of the frame 1, and a dust removal mechanism 5 is provided at the upper end of the frame 1. The screening mechanism 2 includes a particle screening frame 201, a screen 1 203, a screen 205, a screen 3 206, a spring 207, a limiting column 208, a base 209, a discharge port 1 210, a side wall 211 and a discharge port 2 212. The bottom wall of the frame 1 is fixedly connected with uniformly distributed limiting columns 208, and the front and rear ends of the lower surface of the particle screening frame 201 are fixedly connected with bases 209. The bases 209 are respectively slidably connected to the upper ends of the vertically adjacent limiting columns 208. The outer parts of the limiting columns 208 are movably sleeved with springs 207, and the springs 207 are respectively located on the frame 1 and the lower surface of the adjacent base 209, the left and right sides of the particle screening frame 201 are fixedly connected with side walls 211, and the two side walls 211 are fixedly connected with screen one 203, screen two 205 and screen three 206 from top to bottom in sequence, and the filter hole size of screen two 205, the filter hole size of screen one 203 and the filter hole size of screen three 206 become smaller in sequence, and the front side of the upper surface of the particle screening frame 201 is fixedly connected with a particle discharge port, the front end of the screen three 206 is fixedly connected with a discharge port one 210, the front end of the screen two 205 is fixedly connected with a discharge port two 212, and the front end of the discharge chute 32 is located between the screen two 205 and the screen three 206.

[0030] In this embodiment, the screening mechanism 2 also includes a vibration motor 202 and a mounting seat 204. The lower surface of the particle screening frame 201 is fixedly connected to the mounting seat 204. The rear side of the mounting seat 204 is fixedly connected to the vibration motor 202 which is symmetrically distributed on the left and right. The controlled ends of the vibration motor 202 are electrically connected to the control end of the controller 7. The rear side of the bottom wall of the frame 1 is fixedly connected to a collecting box 6. The upper end of the collecting box 6 is located at the lower end of the rear side of the sieve 205. After the corn falls into the feed chute 32, it slides to the upper end of the sieve 205. The aperture of the sieve 205 can pass the complete corn kernels. The vibration motor 202 is started, driving the particle screening frame 201 to shake, and the sieves 1 203, 205 and 20 6 shakes synchronously, the spring 207 increases the shaking amplitude due to the elastic potential energy, and since the interior of the frame 1 is a negative pressure environment, the airflow is upward, and the corn at the upper end of the screen 205 is subjected to an upward wind force. The empty shells and lighter fragments move upward with the vibration of the screen 205, and the corn falls from the screen 205. The larger impurities slide from the upper surface of the screen 205 to the discharge port 212, and the preliminary screening is achieved. The corn falls to the screen 3 206. The aperture of the screen 3 206 is smaller than the size of the complete wheat grains. The small stones and debris mixed with the corn seeds are discharged from the screen 3 206 and collected through the particle discharge port. The corn slides from the upper surface of the screen 3 206 to the discharge port 1 210, and the screening is completed.

[0031] The dust removal mechanism 5 includes an air inlet 51, a dust removal box 52, a dust outlet 53 and a hook 54. The upper end of the frame 1 is fixedly connected to the dust removal box 52, the left side of the dust removal box 52 is provided with an air inlet 51, the right side of the dust removal box 52 is provided with a dust outlet 53, the upper and lower ends of the dust outlet 53 are fixedly connected with evenly distributed hooks 54, the rear side of the dust removal box 52 is connected to the dust removal port 46, the fan supplies air to the dust removal box 52, the air is discharged from the dust outlet 53, the dust removal port 46 and the interior of the frame 1 form a negative pressure environment, the dust at the position of the feed hopper 41 and the dust generated during screening are sucked into the dust removal box 52.

[0032] The switching mechanism 3 includes a material discharge chute 32, a fixed frame 33, a pulley seat 34, a pulley 35 and a U-shaped slide 36. The left and right sides of the frame 1 are fixedly connected with the U-shaped slide 36, and the rear end of the U-shaped slide 36 is inclined upward. The left and right sides of the material discharge chute 32 are fixedly connected with the fixed frames 33, and the relative outer side surfaces of the upper ends of the two fixed frames 33 are rotatably connected with the pulley seats 34. The front and rear ends of the relative outer side surfaces of the two pulley seats 34 are rotatably connected with the pulleys 35. The outer arc surfaces of the pulleys 35 are respectively slidably connected to the insides of the adjacent U-shaped slides 36. The material discharge chute 32 is arranged in cooperation with the screening mechanism 2. The switching mechanism 3 also includes a support rod 31, which is fixedly connected to the two The rear ends of the fixed frames 33 are located between the rear ends of the fixed frames 33. When screening wheat, the rear side of the frame 1 is opened, the handrail 31 is pulled by hand, the feed chute 32 is pulled backward, and the pulley 35 slides backward inside the adjacent U-shaped chute 36. Since the rear end of the U-shaped chute 36 is inclined upward, the feed chute 32 moves upward at an angle. When passing through the arc chute of the U-shaped chute 36, the pulley seat 34 rotates to achieve a smooth transition of the feed chute 32 to the upper end of the U-shaped chute 36. Subsequently, the feed chute 32 slides down inside the U-shaped chute 36 under the action of gravity, and the feed chute 32 is transferred to the screen 203. The aperture of the screen 203 can pass complete wheat grains, and the wheat is screened in the same way.

[0033] The feeding mechanism 4 is arranged at the upper end of the rear side of the frame 1, and the feeding mechanism 4 is cooperated with the dust removal mechanism 5. The feeding mechanism 4 includes a feeding hopper 41, a protective frame 42, a motor 43, a shaking plate 44, an eccentric wheel assembly 45 and a dust removal port 46. The feeding hopper 41 is fixedly connected to the rear side of the upper end of the frame 1, and the dust removal port 46 is arranged at the rear end of the feeding hopper 41. The front side of the lower end of the feeding hopper 41 is rotatably connected to the shaking plate 44, and the lower end of the feeding hopper 41 is rotatably connected to the rotating shaft. The outside of the rotating shaft is provided with evenly distributed eccentric wheel assemblies 45, and the eccentric wheel assemblies 45 are all cooperated with the shaking plate 44. The lower end of the left side of the feeding hopper 41 is fixedly connected to the motor 43, and the output shaft of the motor 43 is fixedly connected to the rotating shaft. The lower end of the feeding hopper 41 is fixedly connected to the protective frame 42, and the protective frame 42 is located at the upper end of the shaking plate 44. The controlled end of the motor 43 is electrically connected to the control end of the controller 7.

[0034] The eccentric wheel assembly 45 includes a limit plate 451, an eccentric wheel 452 and an annular connecting rod 453. The outer fixed sleeve of the rotating shaft is provided with evenly distributed eccentric wheels 452. The connection position of the eccentric wheel 452 and the rotating shaft deviates from the center of the eccentric wheel 452. The outer arc surface of the eccentric wheel 452 is slidably connected with an annular connecting rod 453. The rear end of the annular connecting rod 453 is rotatably connected to the lower surface of the shaking plate 44 through a pin shaft. The left and right sides of the eccentric wheel 452 are fixedly connected to the limit plate 451. The annular connecting rod 453 is slidably connected between the two limit plates 451 located on the same eccentric wheel 452. When the corn is screened and transported, the corn is Rice is transported to the feed hopper 41 through a belt conveyor, and corn falls from the feed hopper 41. The output shaft of the motor 43 drives the rotating shaft to rotate, and the eccentric wheel 452 rotates, driving the annular connecting rod 453 to rotate. The motion trajectory of the annular connecting rod 453 is a circle with the rotating shaft as the center. The limit plate 451 prevents the annular connecting rod 453 from detaching, and the annular connecting rod 453 drives the shaking plate 44 to swing back and forth. The opening between the shaking plate 44 and the inner wall of the rear side of the feed hopper 41 changes with the swing of the shaking plate 44. The fluidity of the corn at the upper end is increased due to the shaking of the shaking plate 44, and the feeding is smoother. The protective frame 42 prevents the corn from being stuck in the gap between the shaking plate 44 and the feed hopper 41.

[0035] The grain processing conveyor with screening and dust removal function provided by the present invention has the following working principle:

[0036] The dust collecting bag is sleeved on the outside of the dust outlet 53 through the barb 54, and the air inlet 51 is connected to the fan. When the corn is screened and transported, the corn is transported to the feed hopper 41 through the belt conveyor, and the corn falls from the feed hopper 41. The output shaft of the motor 43 drives the rotating shaft to rotate, and the eccentric wheel 452 rotates, driving the annular connecting rod 453 to rotate. The movement trajectory of the annular connecting rod 453 is a circle with the rotating shaft as the center. The limit plate 451 prevents the annular connecting rod 453 from detaching. The annular connecting rod 453 drives the shaking plate 44 to swing back and forth. The opening between the shaking plate 44 and the inner wall of the rear side of the feed hopper 41 changes with the swing of the shaking plate 44. The corn at the upper end is moved by the shaking plate 44. The shaking fluidity increases, and the feeding becomes smoother. The protective frame 42 prevents the corn from being stuck in the gap between the shaking plate 44 and the feed hopper 41. At the same time, the fan sends air to the dust removal box 52, and the air is discharged from the dust outlet 53. A negative pressure environment is formed in the dust removal port 46 and the interior of the frame 1. The dust at the feed hopper 41 and the dust generated during screening are sucked into the dust removal box 52, and then enter the dust outlet 53 with the wind to collect the dust. After the corn falls into the feeding chute 32, it slides to the upper end of the second screen 205. The aperture of the second screen 205 can pass the complete corn kernels. The vibration motor 202 is started, driving the particle screening frame 201 to shake, and the screens 1 203, 205 and 203 are moved. 6 synchronous shaking, the spring 207 increases the shaking amplitude due to the elastic potential energy, since the interior of the frame 1 is a negative pressure environment, the airflow is upward, and the corn on the upper end of the second screen 205 is subjected to an upward wind force, and the empty shells and lighter fragments move upward with the vibration of the second screen 205, and the corn falls from the second screen 205. The larger impurities slide from the upper surface of the second screen 205 to the second discharge port 212, and the preliminary screening is achieved. The corn falls to the third screen 206. The aperture of the third screen 206 is smaller than the size of the complete wheat grains. The small stones and debris mixed with the corn seeds are discharged from the third screen 206 and collected through the particle discharge port. The corn slides from the upper surface of the third screen 206 To the discharge port 210, the screening is completed. When screening wheat, open the rear side of the frame 1, pull the handrail 31 by hand, pull the feed chute 32 backward, and the pulley 35 slides backward inside the adjacent U-shaped chute 36. Since the rear end of the U-shaped chute 36 is inclined upward, the feed chute 32 moves upward. When passing through the arc chute of the U-shaped chute 36, the pulley seat 34 rotates to achieve a smooth transition of the feed chute 32 to the upper end of the U-shaped chute 36. Subsequently, the feed chute 32 slides down inside the U-shaped chute 36 under the action of gravity, and the feed chute 32 is replaced to the screen 203. The aperture of the screen 203 can pass complete wheat particles, and the wheat is screened in the same way.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A grain processing conveyor with screening and dust removal function, characterized in that: It comprises a frame (1), a switching mechanism (3) and a feeding mechanism (4); A screening mechanism (2) is provided at the front end of the bottom wall of the frame (1), and a dust removal mechanism (5) is provided at the upper end of the frame (1); The switching mechanism (3) comprises a material discharge chute (32), a fixed frame (33), a pulley seat (34), a pulley (35) and a U-shaped slide groove (36). The left and right sides of the frame (1) are fixedly connected to the U-shaped slide groove (36). The rear end of the U-shaped slide groove (36) is inclined upward. The left and right sides of the material discharge chute (32) are fixedly connected to the fixed frame (33). The opposite outer side surfaces of the upper ends of the two fixed frames (33) are rotatably connected to the pulley seat (34). The front and rear ends of the opposite outer side surfaces of the two pulley seats (34) are rotatably connected to the pulleys (35). The outer arc surfaces of the pulleys (35) are respectively slidably connected to the inside of the adjacent U-shaped slide grooves (36). The material discharge chute (32) is arranged in cooperation with the screening mechanism (2); The feeding mechanism (4) is arranged at the upper end of the rear side of the frame (1), and the feeding mechanism (4) is arranged in coordination with the dust removal mechanism (5).

2. The food processing conveyor with screening and dust removal function according to claim 1 is characterized in that: The switching mechanism (3) further comprises a support rod (31), wherein the support rod (31) is fixedly connected between the rear ends of the two fixing frames (33).

3. The food processing conveyor with screening and dust removal function according to claim 1 is characterized in that: The screening mechanism (2) comprises a particle screening frame (201), a screen 1 (203), a screen 2 (205), a screen 3 (206), a spring (207), a limiting column (208), a base (209), a first discharge port (210), a side wall (211) and a second discharge port (212); the bottom wall of the frame (1) is fixedly connected with evenly distributed limiting columns (208); the front and rear ends of the lower surface of the particle screening frame (201) are fixedly connected with bases (209); the bases (209) are respectively slidably connected to the upper ends of the vertically adjacent limiting columns (208); the outer parts of the limiting columns (208) are movably sleeved with springs (207); the springs (207) are respectively located on the bottom wall of the frame (1) and the adjacent bases ( The particle screening frame (201) is provided with a particle discharge port fixedly connected to the front side of the upper surface of the particle screening frame (201), the front end of the particle screening frame (201) is fixedly connected to the particle discharge port (210), the front end of the particle screening frame (201) is fixedly connected to the particle discharge port (212), and the front end of the particle screening frame (201) is fixedly connected to the particle discharge port (210), and the front end of the particle screening frame (201) is fixedly connected to the particle discharge port (212). The front end of the particle screening frame (201) is located between the particle screening frame (201) and the particle screening frame (209).

4. The food processing conveyor with screening and dust removal function according to claim 3 is characterized in that: The screening mechanism (2) further comprises a vibration motor (202) and a mounting seat (204); the mounting seat (204) is fixedly connected to the lower surface of the particle screening frame (201); and the rear side surface of the mounting seat (204) is fixedly connected to the vibration motors (202) which are symmetrically distributed on the left and right.

5. The food processing conveyor with screening and dust removal function according to claim 1 is characterized in that: The feeding mechanism (4) comprises a feeding hopper (41), a protective frame (42), a motor (43), a shaking plate (44), an eccentric wheel assembly (45) and a dust removal port (46). The rear side of the upper end of the frame (1) is fixedly connected to the feeding hopper (41), the rear end of the feeding hopper (41) is provided with a dust removal port (46), the front side of the lower end of the feeding hopper (41) is rotatably connected to the shaking plate (44), the lower end of the feeding hopper (41) is rotatably connected to a rotating shaft, the outside of the rotating shaft is provided with evenly distributed eccentric wheel assemblies (45), and the eccentric wheel assemblies (45) are all arranged in cooperation with the shaking plate (44), the lower end of the left side of the feeding hopper (41) is fixedly connected to the motor (43), the output shaft of the motor (43) is fixedly connected to the rotating shaft, the lower end of the feeding hopper (41) is fixedly connected to the protective frame (42), and the protective frame (42) is located at the upper end of the shaking plate (44).

6. The food processing conveyor with screening and dust removal function according to claim 5 is characterized in that: The eccentric wheel assembly (45) comprises a limit plate (451), an eccentric wheel (452) and an annular connecting rod (453); the outer fixed sleeve of the rotating shaft is provided with evenly distributed eccentric wheels (452); the connection position between the eccentric wheel (452) and the rotating shaft deviates from the center of the eccentric wheel (452); the outer arc surface of the eccentric wheel (452) is slidably connected to the annular connecting rod (453); the rear end of the annular connecting rod (453) is rotatably connected to the lower surface of the shaking plate (44) via a pin shaft; the left and right sides of the eccentric wheel (452) are fixedly connected to the limit plate (451); and the annular connecting rod (453) is slidably connected between two limit plates (451) located on the same eccentric wheel (452).

7. The food processing conveyor with screening and dust removal function according to claim 6 is characterized in that: The dust removal mechanism (5) comprises an air inlet (51), a dust removal box (52), a dust outlet (53) and barbs (54); the upper end of the frame (1) is fixedly connected to the dust removal box (52); the left side of the dust removal box (52) is provided with an air inlet (51); the right side of the dust removal box (52) is provided with a dust outlet (53); the upper and lower ends of the dust outlet (53) are fixedly connected to evenly distributed barbs (54); and the rear side of the dust removal box (52) is connected to the dust removal outlet (46).

8. The food processing conveyor with screening and dust removal function according to claim 4 is characterized in that: A collecting box (6) is fixedly connected to the rear side of the bottom wall of the frame (1), and the upper end of the collecting box (6) is located at the lower end of the rear side of the second screen (205).

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