An automatic grading and grain selection device for processing selenium-rich rice

Abstract

The present invention discloses an automatic grading and grain selection device for processing selenium-enriched rice, comprising a base, a connecting rod arranged along a conical groove generatrix is ​​rotatably connected to the base, and a screening ball is fixedly connected to the top of the connecting rod, the connecting rod and the screening ball perform annular motion, and an outer cover is arranged above the base; the outer cover comprises an arc screen and a connecting plate, the cross section of the arc screen is a straight notch structure, and the bottom of the arc screen is fixedly connected to a connecting plate. In the present invention, the screening ball is driven by a driving motor, and the screening ball applies an outward centrifugal force to the rice during the rotation process, and cooperates with its annular motion, so that the internal rice dynamically contacts the screening ball screen, completes the cyclic screening of all the rice inside, and can obtain a better screening effect, and the screened rice is thrown onto the arc screen, rolls down along the arc screen, and the fine broken rice therein is screened out, realizing multi-stage screening.

Description

Technical Field

[0001] The invention relates to an automatic grading and grain selection device for processing selenium-enriched rice. Background Art

[0002] Rice is a finished product made from paddy rice after processes such as cleaning, husking, milling and finishing. It contains nearly 64% of the nutrients in rice and more than 90% of the nutrients needed by the human body. It is also the staple food for people in most parts of China.

[0003] During the rice production and processing, the hulled rice is often required to be graded and screened according to the particle size in order to better package and sell the rice and achieve the best economic benefits. In traditional screening equipment, the screening is performed by shaking the flat screen. Since the rice is not smooth, the state of the rice passing through the screen is different, which will cause the problem of poor rice screening effect. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic grading and grain selection device for processing selenium-enriched rice, which solves the problem of poor screening effect of the sieve screening method in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An automatic grading and grain selection device for processing selenium-enriched rice comprises a base, a conical groove is provided at the center of the top of the base, a connecting rod arranged along the generatrix of the conical groove is rotatably connected to the base, and a screening ball is fixedly connected to the top of the connecting rod, the connecting rod and the screening ball perform circular motion, and an outer cover is arranged above the base;

[0007] The outer cover includes an arc-shaped screen and a connecting plate. The cross section of the arc-shaped screen is a straight slot-shaped structure, and the bottom of the arc-shaped screen is an open structure. The bottom end of the arc-shaped screen is fixedly connected to the connecting plate, and the connecting plate is arranged in a vertical ring shape.

[0008] As a further description of the above technical solution:

[0009] A latching gear ring is rotatably connected at the bottom center of the base, and a driving motor is arranged below the base, and an output shaft sleeve of the driving motor is provided with a gear plate, and the gear plate and the latching gear ring are meshed for transmission.

[0010] As a further description of the above technical solution:

[0011] A vertical rod is rotatably connected to the axis position of the base, and two ends of the vertical rod are fixedly connected to the latching gear ring and the connecting rod respectively.

[0012] As a further description of the above technical solution:

[0013] A feeding port is provided on the top of the arc-shaped screen, and a feeding pipe is provided above the feeding port. The feeding pipe is assembled between the first electric telescopic rod and the arc-shaped screen.

[0014] As a further description of the above technical solution:

[0015] A discharge trough is arranged below the arc-shaped screen, and the discharge trough is arranged corresponding to the position of the feeding port, and the discharge trough is bent toward the outside of the arc-shaped screen.

[0016] As a further description of the above technical solution:

[0017] A second electric telescopic rod is fixedly connected to the inner axis position of the discharge chute, and the second electric telescopic rod is coaxially arranged with the discharge chute.

[0018] As a further description of the above technical solution:

[0019] An intermediate block is fixedly connected at the center of the screening ball, and concentrically arranged sealing plates are arranged at the top and bottom of the screening ball, and the sealing plates can only move toward the inside of the screening ball.

[0020] As a further description of the above technical solution:

[0021] An elastic telescopic rod is arranged between the middle block and the sealing plate, and two ends of the elastic telescopic rod are respectively fixedly connected with the sealing plate and the middle block.

[0022] The present invention has at least the following beneficial effects:

[0023] 1. In the present invention, the screening ball is driven by a driving motor. During the rotation of the screening ball, the centrifugal force is applied to the rice outward. At the same time, the circular motion is coordinated so that the internal rice is dynamically contacted with the screening ball screen, and the cyclic screening of all the rice inside is completed, so that a better screening effect can be obtained. The screened rice is thrown onto the arc screen and rolls down along the arc screen, and the fine broken rice therein is screened out, so that multi-stage screening is achieved and the performance of the device is improved.

[0024] 2. In the present invention, the first electric telescopic rod is started to contract, and the feeding tube moves downward. The bottom end of the feeding tube pushes the sealing plate above the screening ball, and the feeding tube enters the screening ball, and the material is discharged through the side discharge port, and the mixed rice enters the screening ball; when the rice in the screening ball is discharged, the second electric telescopic rod is started to extend, and the output end of the second electric telescopic rod pushes the sealing plate below the screening ball to move inward. After the restriction of the sealing plate is lost, the internal rice leaks into the discharge trough, and then leaks to the outside through the discharge trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0026] Figure 1 A longitudinal sectional view according to an embodiment of the present invention is shown;

[0027] Figure 2 A horizontal cross-sectional view according to an embodiment of the present invention is shown;

[0028] Figure 3 A structural diagram of a screening ball provided according to an embodiment of the present invention is shown.

[0029] In the figure: 1. outer cover; 101. arc-shaped screen; 102. connecting plate; 103. feeding port; 2. base; 201. conical groove; 3. screening ball; 4. connecting rod; 5. vertical rod; 6. snap ring; 7. driving motor; 8. gear plate; 9. feeding pipe; 10. first electric telescopic rod; 11. discharging trough; 12. second electric telescopic rod; 13. sealing plate; 14. middle block; 15. elastic telescopic rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] Reference Figure 1-3 , an automatic grading and grain selection device for processing selenium-enriched rice, comprising a base 2, a conical groove 201 is provided at the center of the top of the base 2, the conical groove 201 does not penetrate the base 2, a connecting rod 4 arranged along the generatrix of the conical groove 201 is rotatably connected to the base 2, and a screening ball 3 is fixedly connected to the top of the connecting rod 4, the connecting rod 4 and the screening ball 3 perform annular motion, an outer cover 1 is provided above the base 2, and the axis of the outer cover 1 is arranged in a collinear manner with the height of the conical groove 201;

[0032] The outer cover 1 includes an arc-shaped screen 101 and a connecting plate 102. The cross section of the arc-shaped screen 101 is a straight slot-shaped structure, and the bottom of the arc-shaped screen 101 is an open structure. The bottom end of the arc-shaped screen 101 is fixedly connected to the connecting plate 102, and the connecting plate 102 is arranged in a vertical ring shape.

[0033] Specifically, Figure 1As shown, a toothed ring 6 is rotatably connected at the bottom center position of the base 2, and a driving motor 7 is arranged below the base 2, and an output shaft sleeve of the driving motor 7 is provided with a gear plate 8, and the gear plate 8 and the toothed ring 6 are meshed for transmission. The base 2 and the toothed ring 6 are coaxially arranged, and a vertical rod 5 is rotatably connected at the axial position of the base 2, and the two ends of the vertical rod 5 are respectively fixedly connected to the toothed ring 6 and the connecting rod 4.

[0034] Specifically, Figure 1 and Figure 2 As shown, a feeding port 103 is provided at the top of the arc-shaped screen 101, and a feeding pipe 9 is arranged above the feeding port 103, and the feeding pipe 9 is assembled between the first electric telescopic rod 10 and the arc-shaped screen 101, the bottom of the first electric telescopic rod 10 is fixedly connected to the arc-shaped screen 101, and the top is fixedly connected to the feeding pipe 9, and the position of the feeding pipe 9 is changed by its extension and contraction, and a discharge trough 11 is arranged below the arc-shaped screen 101, and the discharge trough 11 is arranged corresponding to the position of the feeding port 103, and the discharge trough 11 is bent toward the outside of the arc-shaped screen 101, and a second electric telescopic rod 12 is fixedly connected to the internal axis position of the discharge trough 11, and the second electric telescopic rod 12 and the discharge trough 11 are coaxially arranged, and the bottom of the second electric telescopic rod 12 is fixedly connected to the discharge trough 11 through a connecting rod.

[0035] Specifically, Figure 1-3 As shown, an intermediate block 14 is fixedly connected at the center of the screening ball 3, and concentrically arranged sealing plates 13 are provided on the top and bottom of the screening ball 3. The sealing plates 13 can only move toward the inside of the screening ball 3 to ensure that the sealing plates 13 will not move to the outside of the screening ball 3 during the rotation of the screening ball 3 to cause rice to spill. A frustum is provided on one side of the sealing plate 13 close to the intermediate block 14 to ensure that the internal rice can leak out when the material is unloaded. An elastic telescopic rod 15 is provided between the intermediate block 14 and the sealing plate 13, and the two ends of the elastic telescopic rod 15 are fixedly connected with the sealing plate 13 and the intermediate block 14 respectively. The elastic telescopic rod 15 is an elastic telescopic sleeve, and the elastic telescopic rod 15 has a force to push the sealing plate 13 outward.

[0036] Working principle: the driving motor 7 rotates to rotate the screening ball 3 to the bottom of the feeding tube 9, and the first electric telescopic rod 10 is started to contract, causing the feeding tube 9 to move downward. The bottom end of the feeding tube 9 pushes the sealing plate 13 above the screening ball 3, and the feeding tube 9 enters the screening ball 3, and the material is discharged through the side discharge port, and the mixed rice enters the screening ball 3; when the rice in the screening ball 3 is discharged, the second electric telescopic rod 12 is started to extend, and the output end of the second electric telescopic rod 12 pushes the sealing plate 13 under the screening ball 3 to move inward. After losing the restriction of the sealing plate 13, the internal rice leaks into the discharge trough 11, and then leaks to the outside through the discharge trough 11; when the rice to be screened is in the screening ball 3, the driving motor is started. 7 is rotated, and the output shaft of the driving motor 7 drives the tooth ring 6 to rotate through the gear plate 8. When the tooth ring 6 rotates, the screening ball 3 is driven through the vertical rod 5 and the connecting rod 4. When the screening ball 3 rotates, an outward centrifugal force is generated, so that the rice contacts the screen thereon. Since the screening ball 3 also performs a circular motion at the same time, the internal rice moves in the screening ball 3 at the same time, changing the contact state, and achieving screening of all the internal rice. A better screening effect can be obtained by the variable speed rotation of the driving motor 7; the screened rice is thrown onto the external arc screen 101, rolls along the arc screen 101, and the fine broken rice therein is screened out, thereby achieving multi-stage screening of rice and improving the performance of the device.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic grading and grain selection device for processing selenium-enriched rice, comprising a base (2), wherein a conical groove (201) is provided at the top center of the base (2), characterized in that: The base (2) is rotatably connected to a connecting rod (4) arranged along the generatrix of the conical groove (201), and the top of the connecting rod (4) is fixedly connected to a screening ball (3), so that the connecting rod (4) and the screening ball (3) perform circular motion, and an outer cover (1) is arranged above the base (2); The outer cover (1) comprises an arc-shaped screen (101) and a connecting plate (102); the cross section of the arc-shaped screen (101) is in a straight slot-shaped structure, and the bottom of the arc-shaped screen (101) is in an open-shaped structure, and the bottom end of the arc-shaped screen (101) is fixedly connected to the connecting plate (102), and the connecting plate (102) is arranged in a vertical ring shape; a latch ring (6) is rotatably connected at the center position of the bottom of the base (2), and a drive motor (7) is arranged below the base (2), and the output shaft sleeve of the drive motor (7) is provided with a gear plate (8), and the gear plate (8) and the latch ring (6) are meshed for transmission; an intermediate block (14) is fixedly connected at the center position of the screening ball (3), and concentrically arranged sealing plates (13) are arranged at the top and bottom of the screening ball (3), and the sealing plate (13) can only move toward the inside of the screening ball (3).

2. The automatic grading and grain selection device for processing selenium-enriched rice according to claim 1, characterized in that: A vertical rod (5) is rotatably connected to the axial position of the base (2), and two ends of the vertical rod (5) are respectively fixedly connected to the latching tooth ring (6) and the connecting rod (4).

3. The automatic grading and grain selection device for processing selenium-enriched rice according to claim 1, characterized in that: A loading port (103) is provided at the top of the arc-shaped screen (101), and a loading pipe (9) is provided above the loading port (103). The loading pipe (9) is assembled between the arc-shaped screen (101) through a first electric telescopic rod (10).

4. The automatic grading and grain selection device for processing selenium-enriched rice according to claim 3, characterized in that: A discharge chute (11) is provided below the arc-shaped screen (101), and the discharge chute (11) is arranged corresponding to the position of the loading port (103), and the discharge chute (11) is bent toward the outside of the arc-shaped screen (101).

5. The automatic grading and grain selection device for processing selenium-enriched rice according to claim 4, characterized in that: A second electric telescopic rod (12) is fixedly connected to the inner axis position of the discharge chute (11), and the second electric telescopic rod (12) and the discharge chute (11) are coaxially arranged.

6. The automatic grading and grain selection device for processing selenium-enriched rice according to claim 1, characterized in that: An elastic telescopic rod (15) is arranged between the middle block (14) and the sealing plate (13), and two ends of the elastic telescopic rod (15) are respectively fixedly connected to the sealing plate (13) and the middle block (14).

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