Rice screening machine

Abstract

The invention discloses a rice screening machine which comprises a bottom plate and a plurality of vertical feet fixed to the top of the bottom plate, a screening barrel is fixed to the ends of the vertical feet, a feeding barrel is fixed to the top of the screening barrel, a servo motor is fixed to the end of the screening barrel through a supporting rod, and a center ring is fixed to the end of the screening barrel in a penetrating mode. A large bearing is nested in the end of the center ring, a separation cylinder is nested in the middle of the large bearing, and a plurality of vertical rods are fixed to the inner wall of the separation cylinder. A spiral piece and a curling piece spirally surround the interior of a screening barrel, a spiral gap is formed between the spiral piece and a separation barrel, the spiral piece, the curling piece, the separation barrel and a translation barrel rotate synchronously, the spiral piece rolls rice from right to left, the rice is in butt joint with the gap between the spiral piece and the separation barrel, broken rice penetrates through a spiral groove, and the broken rice is separated from the separation barrel. And the rice continuously rolls in the gap between the spiral sheet and the separation barrel, so that the rice is prevented from blocking the gap between the spiral sheet and the separation barrel, and the broken rice quickly passes through the separation barrel.

Description

Technical Field

[0001] The invention relates to the technical field of rice processing, in particular to a rice screening machine. Background Art

[0002] After the rice is processed, it needs to be screened to remove the broken rice and ensure that the rice grains are full. The rice screening machine in the prior art generally screens the rice through a sieve. Since small rice particles are easy to clog the tiny screening holes, the rice screening efficiency is very low and the rice screening is incomplete. Therefore, it is necessary to provide a rice screening machine. Summary of the invention

[0003] The purpose of the present invention is to solve the problem in the prior art that small rice particles are easy to block small screening holes, resulting in very low rice screening efficiency and incomplete rice screening, thereby providing a rice screening machine.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a rice screening machine, comprising a bottom plate and a plurality of vertical feet fixed on the top thereof, a screening cylinder being fixed at the ends of the plurality of vertical feet, a feeding cylinder being fixed on the top of the screening cylinder, a servo motor being fixed at the end of the screening cylinder through a support rod, a center ring being fixed through the end of the screening cylinder, a large bearing being nested at the end of the center ring, a separating cylinder being nested in the middle of the large bearing, a plurality of vertical rods being fixed on the inner wall of the separating cylinder, a small bearing being fixed at one end of the plurality of vertical rods, an adjusting rod being fixed through the middle of the small bearing, a large gear being fixed at one end of the adjusting rod, a threaded ring being threadedly sleeved at the other end of the adjusting rod, a translation cylinder being nested and fixed on the threaded ring, a spiral sheet being fixed on the surface of the translation cylinder, a curling sheet being fixed on the edge of the spiral sheet, a fixing plate being fixed on the inner side of the separating cylinder, a sealed bearing being fixed on the fixing plate, a rotating rod being fixed through the middle of the sealed bearing, and a torsion column being fixed at one end of the rotating rod.

[0005] Further preferably, a threaded ring is fixed to the inner side of the feed barrel via a support rod, a threaded rod penetrates the middle thread of the threaded ring, and a conical block is fixed to the bottom of the threaded rod.

[0006] Further preferably, one end opening of the separation cylinder is provided with two discharge ports, the upper opening of the separation cylinder is provided with a spiral groove, and the other end opening of the adjustment rod is provided with an external thread.

[0007] Further preferably, a thread groove is provided at an opening at one end of the threaded rod, the adjusting rod and the rotating rod are kept parallel, the separating cylinder and the translating cylinder are coaxially arranged, and the axial directions of the adjusting rod and the rotating rod are kept parallel.

[0008] Further preferably, the spiral sheet passes through the spiral groove and extends out of the separation cylinder, the translation cylinder is sleeved in the middle of the separation cylinder, and the separation cylinder and the translation cylinder are sleeved in the middle of the screening cylinder.

[0009] Further preferably, the pinion gear and the large gear are kept in meshing, the diameter of the pinion gear is smaller than the diameter of the large gear, and the pinion gear is located between the sealed bearing and the torsion column.

[0010] Further preferably, the spiral axes of the spiral sheet and the curled sheet are kept coaxially arranged, the thicknesses of the spiral sheet and the curled sheet are kept consistent, and the discharge port is located above the right housing.

[0011] Further preferably, the spiral groove and the spiral sheet create a gap for screening, the spacing between the two sides of the spiral sheet and the spiral groove is different, and the end of the screening cylinder is located above the left box.

[0012] Further preferably, the top opening of the screening cylinder is provided with a feed port, the bottom of the feed cylinder is butted against the feed port at the top of the screening cylinder, and the twisting column is located outside the separation cylinder.

[0013] The beneficial effects of the present invention are: The spiral sheet and the curling sheet are spirally wound around the inside of the screening cylinder, and a spiral gap is generated between the spiral sheet and the separation cylinder. The spiral sheet, the curling sheet, the separation cylinder and the translation cylinder rotate synchronously, and the spiral sheet rolls the rice from right to left. The rice docks in the gap between the spiral sheet and the separation cylinder, so that the broken rice passes through the spiral groove. The rice rolls continuously in the gap between the spiral sheet and the separation cylinder to prevent the rice from blocking the gap between the spiral sheet and the separation cylinder, so that the broken rice quickly passes through the separation cylinder, which can not only quickly complete the rice screening work, but also ensure that the rice is screened completely, and has the advantages of fast and complete rice screening; The rotating rod, small gear and torsion column rotate synchronously, and the small gear drives the large gear, so that the large gear and the adjusting rod rotate synchronously in the threaded ring. The threaded ring moves at the end of the adjusting rod, thereby adjusting the position of the translation cylinder, spiral sheet and curling sheet on the separation cylinder, and adjusting the distance between the spiral sheet and the spiral groove to ensure the screening efficiency and screening effect. The diameter of the small gear is smaller than the diameter of the large gear, and the rotating angle of the adjusting rod can be accurately adjusted, thereby accurately adjusting the distance between the spiral sheet and the spiral groove, and accurately adjusting the rice screening distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole; Figure 3 It is a schematic diagram of the end section of the separation cylinder of the present invention; Figure 4 It is a schematic diagram of the structure of the spiral sheet of the present invention; Figure 5 It is a schematic diagram of the end of the translation cylinder of the present invention; Figure 6 It is a structural schematic diagram of the separation cylinder of the present invention; Figure 7 It is a cross-sectional schematic diagram of the feed barrel of the present invention.

[0015] In the figure: bottom plate 1, vertical foot 2, left box 3, right box 4, screening cylinder 5, feed cylinder 6, threaded ring 7, threaded rod 8, conical block 9, center circle 10, large bearing 11, separation cylinder 12, discharge port 13, vertical rod 14, small bearing 15, adjusting rod 16, large gear 17, threaded ring 18, translation cylinder 19, spiral piece 20, curling piece 21, spiral groove 22, fixed plate 23, sealed bearing 24, rotating rod 25, small gear 26, torsion column 27, external thread 28, thread groove 29, servo motor 30. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Reference Figures 1 to 7 A rice screening machine comprises a bottom plate 1 and a plurality of vertical feet 2 fixed on the top thereof, a screening cylinder 5 is fixed at the ends of the plurality of vertical feet 2, a servo motor 30 is fixed at the end of the screening cylinder 5 through a support rod, a feeding cylinder 6 is fixed at the top of the screening cylinder 5, a center ring 10 is fixed through the end of the screening cylinder 5, a large bearing 11 is nested at the end of the center ring 10, a separation cylinder 12 is nested in the middle of the large bearing 11, a plurality of vertical rods 14 are fixed to the inner wall of the separation cylinder 12, a small bearing 15 is fixed at one end of the plurality of vertical rods 14, and the small bearing 15 An adjusting rod 16 is fixed through the middle, a large gear 17 is fixed to one end of the adjusting rod 16, a threaded ring 18 is threadedly sleeved on the other end of the adjusting rod 16, a translation cylinder 19 is nested and fixed on the threaded ring 18, a spiral piece 20 is fixed on the surface of the translation cylinder 19, a curling piece 21 is fixed on the edge of the spiral piece 20, a fixing plate 23 is fixed on the inner side of the partition cylinder 12, a sealing bearing 24 is fixed on the fixing plate 23, a rotating rod 25 is fixed through the middle of the sealing bearing 24, and a torsion column 27 is fixed on one end of the rotating rod 25.

[0018] Preferably, one end opening of the separation cylinder 12 is provided with two discharge ports 13, the upper opening of the separation cylinder 12 is provided with a spiral groove 22, the other end opening of the adjusting rod 16 is provided with an external thread 28, a threaded ring 7 is fixed to the inner side of the feed cylinder 6 through a support rod, a threaded rod 8 passes through the middle thread of the threaded ring 7, a conical block 9 is fixed to the bottom of the threaded rod 8, the threaded rod 8 is moved to rotate in the middle of the threaded ring 7, the threaded rod 8 moves up and down in the middle of the threaded ring 7, and the distance between the conical block 9 and the inner side of the feed cylinder 6 is adjusted, thereby adjusting the flow rate of rice discharged at the bottom of the feed cylinder 6.

[0019] Preferably, a thread groove 29 is provided at one end opening of the threaded rod 8, the adjusting rod 16 and the rotating rod 25 are kept parallel, the separation cylinder 12 and the translation cylinder 19 are coaxially arranged, the adjusting rod 16 and the axial direction are kept parallel, the spiral piece 20 passes through the spiral groove 22 and extends out of the separation cylinder 12, the translation cylinder 19 is sleeved in the middle of the separation cylinder 12, and the separation cylinder 12 and the translation cylinder 19 are sleeved in the middle of the screening cylinder 5; During specific implementation, the rotating rod 25, the small gear 26 and the torsion column rotate synchronously, and the small gear 26 drives the large gear 17, so that the large gear 17 and the adjusting rod 16 rotate synchronously in the threaded ring 18, and the threaded ring 18 moves at the end of the adjusting rod 16, thereby adjusting the position of the translation cylinder 19, the spiral piece 20 and the curling piece 21 on the separation cylinder 12, and adjusting the distance between the spiral piece 20 and the spiral groove 22 to ensure the screening efficiency and screening effect.

[0020] Preferably, the power output end of the servo motor 30 is fixed on the separation cylinder 12, the pinion 26 and the large gear 17 are kept in meshing, the diameter of the pinion 26 is smaller than the diameter of the large gear 17, the pinion 26 is located between the sealed bearing 24 and the torsion column 27, the top opening of the screening cylinder 5 is provided with a feed port, the bottom of the feed cylinder 6 is connected to the feed port at the top of the screening cylinder 5, and the torsion column 27 is located on the outside of the separation cylinder 12; In specific implementation, the diameter of the small gear 26 is smaller than the diameter of the large gear 17, so the rotation angle of the adjusting rod 16 can be accurately adjusted, thereby accurately adjusting the spacing between the spiral sheet 20 and the spiral groove 22, and accurately adjusting the rice screening spacing.

[0021] Preferably, the spiral axial directions of the spiral sheet 20 and the curled sheet 21 are kept coaxial, the thickness of the spiral sheet 20 and the curled sheet 21 are kept consistent, the discharge port 13 is located above the right receiving box 4, the spiral groove 22 and the spiral sheet 20 form a gap for screening, the distances between the two sides of the spiral sheet 20 and the spiral groove 22 are different, and the end of the screening cylinder 5 is located above the left receiving box 3; During specific implementation, the spiral sheet 20 and the curling sheet 21 are spirally wrapped around the inside of the screening cylinder 5, and a spiral gap is generated between the spiral sheet 20 and the separating cylinder 12. The spiral sheet 20, the curling sheet 21, the separating cylinder 12 and the translation cylinder 19 rotate synchronously. The spiral sheet 20 rolls the rice from right to left, and the rice docks in the gap between the spiral sheet 20 and the separating cylinder 12, so that the broken rice passes through the spiral groove 22. The rice keeps rolling in the gap between the spiral sheet 20 and the separating cylinder 12 to prevent the rice from blocking the gap generated by the spiral sheet 20 and the separating cylinder 12, so that the broken rice quickly passes through the separating cylinder 12, which can not only quickly complete the rice screening work, but also ensure that the rice screening is complete.

[0022] In the present invention, when in use, first, pour the rice into the feed barrel 6, then move the threaded rod 8 to make it move upward in the middle of the threaded ring 7, so that the conical block 9 moves upward on the inner wall of the feed barrel 6, and a gap is generated between the conical block 9 and the inner wall of the feed barrel 6, and the rice is discharged into the interior of the screening barrel 5 through the bottom of the feed barrel 6, and then the servo motor 30 drives the partition barrel 12, the vertical rod 14, the small bearing 15, the adjusting rod 16, the large gear 17, the threaded ring 18, the translation barrel 19, the spiral sheet 20, the curling sheet 21, the fixed plate 23, the sealed bearing 24, the rotating rod 25, the small gear 26 and the torsion column 27 and other structures to rotate synchronously inside the screening barrel 5 The spiral blade 20 rolls the rice from right to left, and the rice docks in the gap between the spiral blade 20 and the separating cylinder 12, so that the broken rice passes through the spiral groove 22, and the rice keeps rolling in the gap between the spiral blade 20 and the separating cylinder 12 to prevent the rice from blocking the gap between the spiral blade 20 and the separating cylinder 12, so that the broken rice quickly passes through the separating cylinder 12, and the rice is respectively located inside and outside the separating cylinder 12, and then the rice outside the separating cylinder 12 is discharged into the interior of the left storage box 3 through the end of the screening cylinder 5, and the broken rice inside the separating cylinder 12 is discharged into the right storage box 4 through its end and the discharge port 13, thereby completing the rice screening work.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rice screening machine, comprising a bottom plate (1) and a plurality of vertical feet (2) fixed on the top thereof, a screening cylinder (5) being fixed at the ends of the plurality of vertical feet (2), a feeding cylinder (6) being fixed at the top of the screening cylinder (5), and a servo motor (30) being fixed at the end of the screening cylinder (5) via a support rod, characterized in that: A center ring (10) is fixedly passed through the end of the screening cylinder (5), a large bearing (11) is nested in the end of the center ring (10), a separation cylinder (12) is nested in the middle of the large bearing (11), a plurality of vertical rods (14) are fixed to the inner wall of the separation cylinder (12), a small bearing (15) is fixed to one end of the plurality of vertical rods (14), an adjusting rod (16) is fixedly passed through the middle of the small bearing (15), a large gear (17) is fixed to one end of the adjusting rod (16), and a large gear (17) is fixed to the other end of the adjusting rod (16). A threaded sleeve is provided with a threaded ring (18), a translation cylinder (19) is nested and fixed on the threaded ring (18), a spiral sheet (20) is fixedly provided on the surface of the translation cylinder (19), a curling sheet (21) is fixedly provided on the edge of the spiral sheet (20), a fixing plate (23) is fixedly provided on the inner side of the separation cylinder (12), a sealing bearing (24) is fixedly provided on the fixing plate (23), a rotating rod (25) is fixedly provided through the middle of the sealing bearing (24), and a torsion column (27) is fixedly provided at one end of the rotating rod (25).

2. The rice screening machine according to claim 1, characterized in that: A threaded ring (7) is fixed to the inner side of the feed barrel (6) via a support rod, a threaded rod (8) penetrates the middle thread of the threaded ring (7), and a conical block (9) is fixed to the bottom of the threaded rod (8).

3. The rice screening machine according to claim 2, characterized in that: One end opening of the separation cylinder (12) is provided with two discharge ports (13), the upper opening of the separation cylinder (12) is provided with a spiral groove (22), and the other end opening of the adjustment rod (16) is provided with an external thread (28).

4. The rice screening machine according to claim 3, characterized in that: One end opening of the threaded rod (8) is provided with a thread groove (29), the adjusting rod (16) and the rotating rod (25) are kept parallel, the partition cylinder (12) and the translation cylinder (19) are coaxially arranged, and the axial direction of the adjusting rod (16) and the rotating rod (25) are kept parallel.

5. The rice screening machine according to claim 3, characterized in that: The spiral sheet (20) passes through the spiral groove (22) and extends out of the separation cylinder (12); the translation cylinder (19) is sleeved in the middle of the separation cylinder (12); and the separation cylinder (12) and the translation cylinder (19) are sleeved in the middle of the screening cylinder (5).

6. The rice screening machine according to claim 3, characterized in that: The pinion gear (26) and the large gear (17) are kept in meshing engagement, the diameter of the pinion gear (26) is smaller than the diameter of the large gear (17), and the pinion gear (26) is located between the sealed bearing (24) and the torsion column (27).

7. The rice screening machine according to claim 3, characterized in that: The spiral axes of the spiral sheet (20) and the curled sheet (21) are coaxially arranged, the thicknesses of the spiral sheet (20) and the curled sheet (21) are consistent, and the discharge port (13) is located above the right housing (4).

8. The rice screening machine according to claim 7, characterized in that: The spiral groove (22) and the spiral sheet (20) form a gap for screening, the distances between the two sides of the spiral sheet (20) and the spiral groove (22) are different, and the end of the screening cylinder (5) is located above the left box (3).

9. The rice screening machine according to claim 3, characterized in that: The top opening of the screening cylinder (5) is provided with a feed port, the bottom of the feed cylinder (6) is butted against the feed port at the top of the screening cylinder (5), and the twisting column (27) is located outside the separation cylinder (12).

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