Rice selecting and grading device with pulse airflow generating structure

Abstract

The rice selecting and grading device with the pulse airflow generation structure comprises a blanking hopper fixedly connected to the top of a supporting frame, a material guide plate is obliquely arranged in the supporting frame, a blanking pipe at the bottom of the blanking hopper is located over the material guide plate, a cover body is fastened to the top of the material guide plate, and one end of the cover body is not in contact with the blanking pipe; a screen for screening rice is arranged on the guide plate, a guide hopper is connected to the bottom of the guide plate, a discharge pipe is connected to the bottom of the guide hopper, the other side of the guide hopper is connected with an air inlet of a fan through a second connecting pipe, and an air outlet of the fan is connected with a dust removal box through a first connecting pipe; a dust removal mechanism is connected into the dust removal box, and a fourth connecting pipe extending into the dust removal mechanism is connected to the top of the dust removal box. Under the action of a second electromagnetic pulse valve and a fourth connecting pipe, pulse airflow is generated to vibrate the interior of the dustproof filter bag, and dust accumulated on the outer wall of the dustproof filter bag can be cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of rice selection, in particular to a rice selection and grading device with a pulse airflow generating structure. Background Art

[0002] Rice processing refers to the technical process in which rice is processed by mechanical, physical and chemical techniques to form different special commodities or products according to its characteristics and product target requirements. The processing quality of rice reflects the characteristics of rice. The main evaluation indicators include rough rice rate, whole polished rice rate, broken rice content in rice, rice processing accuracy and other indicators.

[0003] Rice milling technology refers to the process of grinding away the bran layer and germ of brown rice to make it edible rice, ensuring the integrity of the rice as much as possible, reducing broken rice, improving the rice yield and rice purity, and preparing for the next step of polishing technology. After the rice is husked, it needs to be graded and selected to select high-quality rice. After the rice is husked, dust and impurities will be scattered on the surface. The existing device is not convenient to clean and discharge the dust and impurities on the surface of the rice, which easily causes the waste of rice powder and cannot ensure that the dust and impurities on the surface of the rice are processed and collected. To this end, we proposed a rice selection and grading device with a pulse airflow generation structure. Summary of the invention

[0004] In view of the shortcomings that the existing devices are inconvenient to clean and discharge dust and impurities on the surface of rice, which easily causes waste of rice powder and impurities, and cannot ensure that the dust and impurities on the surface of rice are processed and collected, the present invention provides a rice selection and grading device with a pulse airflow generating structure, which has the advantages of adsorbing dust into a dust removal box, and under the filtering effect of a dust-proof filter bag, the dust can be collected into a space formed by a dust-proof filter bag and the inside of the dust removal box, and the accumulated dust can be cleaned conveniently, thereby solving the problems raised in the above-mentioned background technology.

[0005] The technical solution of the present invention is implemented as follows: a rice selecting and grading device with a pulse airflow generating structure includes a drop hopper fixedly connected to the top of a support frame, and a guide plate is obliquely arranged in the support frame, a discharge pipe at the bottom of the drop hopper is located directly above the guide plate, and a cover body is fastened to the top of the guide plate, and one end of the cover body is not in contact with the discharge pipe; a screen for screening rice is arranged on the guide plate, and the guide hopper is connected to the bottom of the guide plate, a discharge pipe is connected to the bottom of the guide hopper, and the other side of the guide hopper is connected to the air inlet of the fan through a second connecting pipe, and the air outlet of the fan is connected to the dust removal box through a first connecting pipe; a dust removal mechanism is connected in the dust removal box, and a fourth connecting pipe extending to the inside of the dust removal mechanism is connected to the top of the dust removal box, a second electromagnetic pulse valve is fastened to the top of the fourth connecting pipe, and the top of the second electromagnetic pulse valve is connected to the compressed air bag through a third connecting pipe, and an air outlet pipe is connected to the top of the dust removal box.

[0006] Optionally, the dust removal mechanism includes a fixed base fastened in the dust removal box, and a plurality of through holes are provided on the fixed base, a mounting frame is fixedly connected to the bottom of the through holes, a fourth connecting pipe extends into the mounting frame, a dust filter bag is wrapped on the outer wall of the mounting frame, and the top of the dust filter bag is fastened to the bottom of the fixed base.

[0007] Optionally, the bottom of the dust removal box is configured as a conical structure, and the bottom of the conical structure is connected to the dust collection box via a sewage pipe, and a plurality of legs are fastened to the bottom of the dust removal box along the circumferential direction.

[0008] Optionally, a sixth connecting pipe distributed in an S shape is fastened on the inner top surface of the cover body, and a plurality of nozzles arranged toward the guide hopper are connected to the bottom of the sixth connecting pipe;

[0009] The other end of the sixth connecting pipe is fixedly connected to the first electromagnetic pulse valve, and the top of the first electromagnetic pulse valve is connected to the compressed air bag through the fifth connecting pipe.

[0010] Optionally, the top of the dust removal box is sealed by a top cover, the air outlet pipe is connected to the top cover, and the fourth connecting pipe passes through the top cover and is sealed and connected thereto.

[0011] Optionally, a mounting plate is fastened to the support frame, a bottom of one end of a material guide plate close to the support frame is rotatably connected to the mounting plate, and a vibration motor is fastened to a side wall of the material guide plate.

[0012] Optionally, two support seats are arranged between the support frame and the mounting plate, and the adjacent sides of the two support seats are respectively connected with a guide rod and a guide tube, and the guide rod is slidably connected in the guide tube, and a return spring coaxially arranged with the guide tube is connected between the two support seats;

[0013] One of the support seats is rotatably connected to the bottom of the material guide plate through a hinge seat, and the other support seat is fastened to the top of the mounting plate, and the lower end of the material guide plate is rotatably connected to the bracket.

[0014] Optionally, a spiral elevator is obliquely arranged on one side of the drop hopper, a discharge port of the spiral elevator extends into the drop hopper, and the spiral elevator is fastened to one side of the support frame.

[0015] Optionally, a first solenoid valve is fastened to the discharge pipe.

[0016] Compared with the prior art, the present invention uses a fan to exhaust air in the guide hopper, so that the dust can be adsorbed into the dust removal box, and under the filtering action of the dust filter bag, the dust can be collected in the space formed by the dust filter bag and the inside of the dust removal box, and the filtered gas is discharged through the outlet pipe. After long-term use, the second electromagnetic pulse valve and the fourth connecting pipe can generate a pulse airflow to vibrate the inside of the dust filter bag, so that the dust accumulated on the outer wall of the dust filter bag can be cleaned. The structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0019] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0020] Figure 3 It is a schematic diagram of the connection between the sixth connecting pipe and the nozzle of the present invention.

[0021] Figure 4 It is a schematic diagram of the internal structure of the dust removal box of the present invention.

[0022] Figure 5 It is a schematic diagram of the connection between the mounting frame and the fixing seat of the present invention.

[0023] In the figure: 1, spiral elevator; 2, support frame; 3, compressed air bag; 4, dust box; 5, through hole; 6, first connecting pipe; 7, dust box; 8, feeding pipe; 9, first electromagnetic pulse valve; 10, fan; 11, second connecting pipe; 12, guide plate; 13, bracket; 14, discharge pipe; 15, screen; 16, first electromagnetic valve; 17, cover; 18, fifth connecting pipe; 19, feeding hopper; 20, guide Bucket; 21. Support legs; 22. Vibration motor; 23. Articulated seat; 24. Support seat; 25. Guide rod; 26. Return spring; 27. Guide pipe; 28. Third connecting pipe; 29. ​​Exhaust pipe; 30. Top cover; 31. Second electromagnetic pulse valve; 32. Sixth connecting pipe; 33. Fixed seat; 34. Dust filter bag; 35. Mounting frame; 36. Fourth connecting pipe; 37. Nozzle; 38. Drain pipe; 39. Mounting plate. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with 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.

[0025] Reference Figures 1 to 5The present invention provides a technical solution: a rice selection and grading device with a pulse airflow generating structure, comprising a drop hopper 19 fixedly connected to the top of a support frame 2, and a guide plate 12 is obliquely arranged in the support frame 2, a drop pipe 8 at the bottom of the drop hopper 19 is located directly above the guide plate 12, and a vibration motor 22 is fastened to the side wall of the guide plate 12, such as Figure 2 , 5 As shown, the mounting plate 39 is fastened to the support frame 2, and the bottom of one end of the guide plate 12 close to the support frame 2 is rotatably connected to the mounting plate 39. When in use, two support seats 24 are arranged between the support frame 2 and the mounting plate 39. The two support seats 24 are respectively connected to the guide rod 25 and the guide tube 27 on the sides close to each other, and the guide rod 25 is slidably connected in the guide tube 27. A return spring 26 coaxially arranged with the guide tube 27 is connected between the two support seats 24; one of the support seats 24 is connected to the guide plate 12 through the hinge seat 23. The bottom of the plate 12 is rotatably connected, and another support seat 24 is fastened to the top of the mounting plate 39. The lower end of the guide plate 12 is rotatably connected to the bracket 13. When selecting rice, the impurities in the rice can be shaken by the vibration of the vibration motor 22. When the guide plate 12 vibrates, it can generate a force on the support seat 24 located at the top, and then generate a force on the reset spring 26. Then, under the elastic force of the reset spring 26, the guide plate 12 can be reciprocated, thereby improving the efficiency of selection.

[0026] At the same time, in order to facilitate the continuous loading of rice, a spiral elevator 1 is obliquely arranged on one side of the drop hopper 19, and the discharge port of the spiral elevator 1 extends into the drop hopper 19. In order to improve the placement stability of the spiral elevator 1, it is fastened to one side of the support frame 2 to ensure the stable transportation of rice.

[0027] like Figure 1 , 3 As shown, the cover body 17 is fastened to the top of the guide plate 12, and one end of the cover body 17 is not in contact with the discharge pipe 8; a sixth connecting pipe 32 with an S-shaped distribution is fastened on the inner top surface of the cover body 17, and a plurality of nozzles 37 arranged toward the guide hopper 20 are connected to the bottom of the sixth connecting pipe 32; the first electromagnetic pulse valve 9 is fixedly connected to the other end of the sixth connecting pipe 32, and the top of the first electromagnetic pulse valve 9 is connected to the compressed air bag 3 through the fifth connecting pipe 18. Through the action of the compressed air bag 3 and the first electromagnetic pulse valve 9, a pulse airflow can be generated at the nozzle 37 to the top of the guide hopper 20, which can remove dust on the surface of rice, and is also beneficial to the falling of impurities and broken rice, thereby improving the selection efficiency.

[0028] In actual use, a screen 15 for screening rice is provided on the guide plate 12 to facilitate the rapid falling of broken rice and impurities, and a guide hopper 20 is connected to the bottom of the guide plate 12. The sorted broken rice and impurities fall into the guide hopper 20 for collection, and a discharge pipe 14 is connected to the bottom of the guide hopper 20. A first solenoid valve 16 is fastened to the discharge pipe 14. The screened impurities and broken rice can be discharged by controlling the first solenoid valve 16.

[0029] In summary, the rice selection and grading device with a pulse airflow generating structure, when used, Figure 3 , 4 As shown, the other side of the guide hopper 20 is connected to the air inlet of the fan 10 through the second connecting pipe 11, the air outlet of the fan 10 is connected to the dust removal box 4 through the first connecting pipe 6, and a second solenoid valve is connected to the first connecting pipe 6, the top of the dust removal box 4 is sealed by a top cover 30, a fixed seat 33 is connected to the dust removal box 4, and a plurality of through holes 5 are provided on the fixed seat 33, a mounting frame 35 is fixedly connected to the bottom of the through holes 5, a dust filter bag 34 is wrapped on the outer wall of the mounting frame 35, the top of the dust filter bag 34 is fastened to the bottom of the fixed seat 33, and a fourth connecting pipe 36 extending to the inside of the mounting frame 35 is connected to the top of the dust removal box 4, the second solenoid pulse valve 31 is fastened to the top of the fourth connecting pipe 36, and the top of the second solenoid pulse valve 31 is connected to the compressed air bag 3 through the third connecting pipe 28, an air outlet pipe 29 is connected to the top cover 30, and the fourth connecting pipe 36 passes through the top cover 30 and is sealed and connected therewith.

[0030] The fan 10 exhausts air from the guide hopper 20, and adsorbs the dust in the guide hopper 20 into the dust removal box 4. Under the filtering action of the dust filter bag 34, the dust can be collected in the space formed by the dust filter bag 34 and the inside of the dust removal box 4, and the filtered gas is discharged through the outlet pipe 29. When used for a long time, the end of the first connecting pipe 6 is closed by the second solenoid valve, and the second solenoid pulse valve 31 and the fourth connecting pipe 36 are used to generate a pulse airflow to vibrate the inside of the dust filter bag 34, so that the dust accumulated on the outer wall of the dust filter bag 34 can be cleaned. When in use, the bottom of the dust removal box 4 is set to a conical structure, and the bottom of the conical structure is connected to the dust collection box 7 through the sewage pipe 38. The fallen dust can be discharged into the dust collection box 7 for collection, which can not only ensure the continuous dust removal of rice, but also facilitate the rapid cleaning of the dust removal mechanism. At the same time, in order to improve the stability of the placement of the dust removal box 4, a plurality of legs 21 are fastened circumferentially at the bottom of the dust removal box 4.

[0031] 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 rice selection and grading device with a pulse airflow generating structure, comprising a drop hopper (19) fixedly connected to the top of a support frame (2), characterized in that: A material guide plate (12) is obliquely arranged inside the support frame (2), a material discharge pipe (8) at the bottom of the material discharge hopper (19) is located directly above the material guide plate (12), and a cover body (17) is fastened to the top of the material guide plate (12), and one end of the cover body (17) does not contact the material discharge pipe (8); A screen (15) for screening rice is provided on the guide plate (12), and a guide hopper (20) is connected to the bottom of the guide plate (12), and a discharge pipe (14) is connected to the bottom of the guide hopper (20), and the other side of the guide hopper (20) is connected to the air inlet of the fan (10) through the second connecting pipe (11), and the air outlet of the fan (10) is connected to the dust removal box (4) through the first connecting pipe (6); A dust removal mechanism is connected inside the dust removal box (4), and a fourth connecting pipe (36) extending to the inside of the dust removal mechanism is connected to the top of the dust removal box (4). The top of the fourth connecting pipe (36) is fastened to the second electromagnetic pulse valve (31), and the top of the second electromagnetic pulse valve (31) is connected to the compressed air bag (3) through the third connecting pipe (28), and the top of the dust removal box (4) is connected to the air outlet pipe (29).

2. The rice selecting and grading device with a pulse airflow generating structure as claimed in claim 1, characterized in that: The dust removal mechanism comprises a fixed seat (33) fastened in the dust removal box (4), and a plurality of through holes (5) are provided on the fixed seat (33), a mounting frame (35) is fixedly connected to the bottom of the through holes (5), a fourth connecting pipe (36) extends into the mounting frame (35), a dust filter bag (34) is wrapped on the outer wall of the mounting frame (35), and the top of the dust filter bag (34) is fastened to the bottom of the fixed seat (33).

3. The rice selecting and grading device with a pulse airflow generating structure as claimed in claim 2, characterized in that: The bottom of the dust removal box (4) is configured as a conical structure, and the bottom of the conical structure is connected to the dust collection box (7) via a sewage discharge pipe (38), and a plurality of legs (21) are fastened to the bottom of the dust removal box (4) along the circumferential direction.

4. The rice selecting and grading device with a pulse airflow generating structure as claimed in claim 3, characterized in that: A sixth connecting pipe (32) distributed in an S shape is fastened on the inner top surface of the cover body (17), and a plurality of nozzles (37) arranged toward the guide hopper (20) are connected to the bottom of the sixth connecting pipe (32); The other end of the sixth connecting pipe (32) is fixedly connected to the first electromagnetic pulse valve (9), and the top of the first electromagnetic pulse valve (9) is connected to the compressed air bag (3) through the fifth connecting pipe (18).

5. The rice selecting and grading device with a pulse airflow generating structure as claimed in claim 4, characterized in that: The top of the dust removal box (4) is sealed by a top cover (30), the air outlet pipe (29) is connected to the top cover (30), and the fourth connecting pipe (36) passes through the top cover (30) and is sealed therewith.

6. The rice selecting and grading device with a pulse airflow generating structure according to any one of claims 1 to 5, characterized in that: A mounting plate (39) is fastened to the support frame (2), a bottom of one end of the guide plate (12) close to the support frame (2) is rotatably connected to the mounting plate (39), and a vibration motor (22) is fastened to the side wall of the guide plate (12).

7. The rice selecting and grading device with a pulse airflow generating structure as claimed in claim 6, characterized in that: Two support seats (24) are arranged between the support frame (2) and the mounting plate (39); a guide rod (25) and a guide tube (27) are respectively connected to the adjacent sides of the two support seats (24); the guide rod (25) is slidably connected in the guide tube (27); and a return spring (26) coaxially arranged with the guide tube (27) is connected between the two support seats (24); One of the support seats (24) is rotatably connected to the bottom of the guide plate (12) through a hinge seat (23), and the other support seat (24) is fastened to the top of the mounting plate (39), and the lower end of the guide plate (12) is rotatably connected to the bracket (13).

8. The rice selecting and grading device with a pulse airflow generating structure as claimed in claim 7, characterized in that: A spiral elevator (1) is obliquely arranged on one side of the material dropping hopper (19), a material discharge port of the spiral elevator (1) extends into the material dropping hopper (19), and the spiral elevator (1) is fastened to one side of the support frame (2).

9. The rice selecting and grading device with a pulse airflow generating structure as claimed in claim 8, characterized in that: A first solenoid valve (16) is fastened to the discharge pipe (14).

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