Flat rotating classifying screen for rice processing

Abstract

The utility model relates to the field of classifying screens, and discloses a horizontal rotating classifying screen for rice processing, which comprises a base, a vertical plate is fixedly mounted on one side of the base, two vertical rods are fixedly mounted at the top of the base, a cross rod is fixedly mounted on one side of each vertical rod, one end of the cross rod is fixedly mounted on the vertical plate, and two sliding seats are slidably sleeved on the vertical rods. The multiple sliding seats are fixedly provided with the same classifying screen shell, a first screen plate is installed in the classifying screen shell, a material guide plate is installed on one side of the classifying screen shell and matched with the first screen plate, a second screen plate is installed in the classifying screen shell, a discharging pipe is installed on the second screen plate, and the bottom end of the discharging pipe penetrates through the classifying screen shell. The multi-layer screening device has the advantages that screening precision is improved through the multiple layers of screening plates, screening efficiency is improved through the unique extrusion mechanism and the amplitude adjusting function, the application range is expanded, the overall structure is reasonable, operation is easy and convenient, and labor intensity can be reduced.

Description

A type of flat rotary grading screen for rice processing Technical Field

[0001] This utility model relates to the field of grading sieve technology, and in particular to a flat rotary grading sieve for rice processing. Background Technology

[0002] During rice processing, rice needs to be graded and screened to remove impurities, dust, and rice grains of different sizes, thereby improving the quality and market value of the rice.

[0003] Traditional rice grading screens have certain shortcomings in terms of grading efficiency and accuracy, making it difficult to meet the needs of modern rice processing enterprises for efficient and precise grading. For example, some existing grading screens have simple structures and can only perform single-level grading, failing to achieve multi-level and precise grading of rice. Moreover, during the grading process, the equipment uses a single vibration mode, resulting in uneven distribution of rice on the screen, affecting grading efficiency and quality. Therefore, we propose a flat rotary grading screen for rice processing to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a flat rotary grading screen for rice processing. It improves the screening accuracy through multi-layer screen plates, enhances screening efficiency and expands the scope of application by utilizing a unique extrusion mechanism and amplitude adjustment function. Moreover, the overall structure is reasonable, the operation is simple, and it can reduce labor intensity.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A flat rotary grading sieve for rice processing includes a base, a vertical plate fixedly installed on one side of the base, two vertical rods fixedly installed on the top of the base, a horizontal rod fixedly installed on one side of the vertical rod, one end of the horizontal rod fixedly installed on the vertical plate, two sliding seats slidably sleeved on the vertical rod, and the same grading sieve shell fixedly installed on multiple sliding seats. A sieve plate one is installed inside the grading sieve shell, a guide plate is installed on one side of the grading sieve shell, the guide plate is adapted to the sieve plate one, a sieve plate two is installed inside the grading sieve shell, a discharge pipe is installed on the sieve plate two, the bottom end of the discharge pipe penetrates the grading sieve shell, a waste discharge pipe is installed at the bottom of the grading sieve shell, two fixing plates are fixedly installed on one side of the vertical plate, the same rotating shaft is rotatably installed on the side of the two fixing plates that are close to each other, a drive motor is installed on the front side of the fixing plate, the output shaft of the drive motor is fixedly connected to the rotating shaft, and a pressing mechanism for pressing the grading sieve shell is provided on the rotating shaft.

[0006] By adopting the above technical solution, the screening accuracy is improved through multi-layer screen plates, and the screening efficiency is enhanced and the applicable range is expanded by utilizing a unique extrusion mechanism and amplitude adjustment function. Moreover, the overall structure is reasonable, the operation is simple, and the labor intensity can be reduced.

[0007] A further feature of this invention is that the extrusion mechanism includes a rotating seat, a U-shaped seat, and an extrusion roller. The rotating seat is fixedly sleeved on the rotating shaft, and a U-shaped seat is provided below the rotating seat. An extrusion roller is rotatably installed inside the U-shaped seat.

[0008] By adopting the above technical solution, the rotating shaft can drive the rotating seat to rotate synchronously when it rotates, thereby causing the U-shaped seat and the extrusion roller to rotate. During the rotation of the extrusion roller, the grading screen shell can be periodically extruded, providing power for the reciprocating motion of the grading screen shell and achieving efficient screening.

[0009] A further feature of this invention is that a rectangular groove is provided at the bottom of the rotating seat, a rectangular seat is slidably installed in the rectangular groove, and the bottom of the rectangular seat is fixedly installed on the U-shaped seat.

[0010] By adopting the above technical solution, the rectangular seat can slide flexibly within the rectangular groove, thereby allowing the horizontal positional relationship between the extrusion roller and the rotating shaft to be adjusted according to actual needs, laying the foundation for subsequent amplitude adjustment.

[0011] A further feature of this invention is that: multiple fixing slots are provided on both sides of the rectangular base, and a fixing mechanism adapted to the fixing slots is provided on the rotating base. The fixing mechanism includes a threaded hole and a fixing bolt. A threaded hole is provided on the inner wall of one side of the rectangular slot, and a fixing bolt is installed in the threaded hole, and the fixing bolt is adapted to the corresponding fixing slot.

[0012] By adopting the above technical solution, when it is necessary to adjust the distance between the extrusion roller and the rotating shaft to change the amplitude of the grading screen shell, the fixing bolts can be turned to make it disengage from or insert into the fixing groove, so as to conveniently fix and adjust the position of the rectangular seat. The operation is simple and precise.

[0013] A further feature of this invention is that a guide hole with an open top is provided on one side of the vertical plate, and the rotating seat, rectangular seat, and extrusion roller are adapted to the guide hole.

[0014] By adopting the above technical solution, the guide hole can play a good guiding role in the rotation trajectory of the rotating seat, rectangular seat and extrusion roller, ensuring that they always maintain a stable direction of movement during rotation, avoiding deviation or shaking, and improving the stability of equipment operation.

[0015] A further feature of this invention is that: two limiting seats are fixedly installed on the top of the crossbar, the limiting seats are located on the left side of the corresponding sliding seats, and the limiting seats are adapted to the corresponding sliding seats; two baffles are fixedly installed on the top of the crossbar, and the baffles are located on the right side of the corresponding sliding seats; a return spring is fixedly installed on the left side of the baffle, and one end of the return spring is fixedly installed on the corresponding sliding seat.

[0016] By adopting the above technical solution, the limiting seat can restrict the sliding seat from moving excessively to the left, while the return spring can push the sliding seat and the grading screen shell to return to their original positions when the extrusion roller separates from the grading screen shell. The baffle provides support for the return spring. The three work together to ensure that the grading screen shell can reciprocate smoothly and regularly.

[0017] A further feature of this invention is that the number of rotating seats is set to one to three, and the one to three rotating seats are equally spaced. A controller is installed on the other side of the vertical plate, and the drive motor is electrically connected to the controller.

[0018] By adopting the above technical solution, different numbers of rotating seats can provide different intensities and frequencies of extrusion force to the grading screen shell, meeting diverse screening needs. The controller can easily start and stop the drive motor, adjust the speed, and improve the ease of use and intelligence of the equipment.

[0019] The beneficial effects of this utility model are:

[0020] (1) Put rice into the grading screen shell. The grading screen shell can be preliminarily screened through the screen plate one, so that small rice particles and dust fall to the screen plate two. Dust or broken rice can pass through the screen plate two and be discharged through the discharge pipe. Large rice particles on the screen plate one can be discharged through the guide plate, and small rice particles on the screen plate two can be discharged through the discharge pipe.

[0021] (2) When rice is being screened, the drive motor can drive the rotating shaft and rotating seat to rotate. The rotating seat drives the U-shaped seat and the squeezing roller to rotate through the rectangular seat. The rotating squeezing roller can squeeze the grading screen shell to the right. The grading screen shell can move to the sliding seat and squeeze the return spring. When the squeezing roller separates from the grading screen shell, the return spring can push the grading screen shell to return to its original position. When the rotating seat and squeezing roller rotate continuously, the grading screen shell can move back and forth, which can improve the efficiency of rice screening.

[0022] (3) By rotating the fixing bolt, the fixing bolt moves while rotating under the action of the threaded hole, so that the fixing bolt can be inserted into or removed from the fixing groove, thus achieving the purpose of fixing and releasing the rectangular seat. By moving the adjusting seat, the distance between the extrusion roller and the rotating shaft can be adjusted, thereby adjusting the amplitude of the reciprocating movement of the grading screen shell. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 is a three-dimensional structural schematic diagram of a flat rotary grading sieve for rice processing according to this utility model;

[0025] Figure 2 is a cross-sectional three-dimensional structural schematic diagram of a flat rotary grading sieve for rice processing according to the present invention;

[0026] Figure 3 is a partial top-view perspective of a flat rotary grading sieve for rice processing according to this utility model;

[0027] Figure 4 is a schematic diagram of the A structure of a flat rotary grading sieve for rice processing according to this utility model.

[0028] In the diagram, 101 is the base; 102 is the vertical plate; 201 is the vertical rod; 202 is the horizontal rod; 203 is the sliding seat; 204 is the grading screen shell; 301 is the first screen plate; 302 is the guide plate; 303 is the second screen plate; 304 is the discharge pipe; 305 is the waste discharge pipe; 401 is the fixing plate; 402 is the rotating shaft; 403 is the drive motor; 404 is the rotating seat; 405 is the U-shaped seat; 406 is the extrusion roller; 407 is the guide hole; 501 is the rectangular groove; 502 is the rectangular seat; 601 is the fixing groove; 602 is the threaded hole; 603 is the fixing bolt; 701 is the baffle; 702 is the return spring; and 703 is the limit seat. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] When a component is described as being "set on" another component, it can be directly on the other component or it can be in an intervening component. "Set on" indicates a mode of existence, which can be a connection, installation, fixed connection, active connection, etc. When a component is described as being "connected" to another component, it can be directly connected to the other component or it may be in an intervening component.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Referring to Figures 1-4, this utility model provides a flat rotary grading sieve for rice processing, including a base 101. A vertical plate 102 is fixedly installed on one side of the base 101. Two vertical rods 201 are fixedly installed on the top of the base 101. A horizontal rod 202 is fixedly installed on one side of the vertical rods 201. One end of the horizontal rod 202 is fixedly installed on the vertical plate 102. Two sliding seats 203 are slidably sleeved on the vertical rods 201. The same grading sieve housing 204 is fixedly installed on multiple sliding seats 203. A sieve plate 301 is installed inside the grading sieve housing 204. A guide plate 302 is installed on one side of the grading sieve housing 204. The guide plate 302 and... Screen plate 301 is adapted to the grading screen housing 204 and screen plate 303 is installed inside the grading screen housing 204. A discharge pipe 304 is installed on screen plate 303 and the bottom end of the discharge pipe 304 penetrates the grading screen housing 204. A waste discharge pipe 305 is installed at the bottom of the grading screen housing 204. Two fixing plates 401 are fixedly installed on one side of the vertical plate 102. The same rotating shaft 402 is rotatably installed on the side of the two fixing plates 401 that are close to each other. A drive motor 403 is installed on the front side of the fixing plate 401. The output shaft of the drive motor 403 is fixedly connected to the rotating shaft 402. A pressing mechanism for pressing the grading screen housing 204 is provided on the rotating shaft 402.

[0033] Specifically, the extrusion mechanism includes a rotating seat 404, a U-shaped seat 405, and an extrusion roller 406. The rotating seat 404 is fixedly sleeved on the rotating shaft 402. The U-shaped seat 405 is provided below the rotating seat 404, and the extrusion roller 406 is rotatably installed inside the U-shaped seat 405.

[0034] Specifically, a rectangular groove 501 is provided at the bottom of the rotating seat 404, and a rectangular seat 502 is slidably installed in the rectangular groove 501, with the bottom of the rectangular seat 502 fixedly installed on the U-shaped seat 405.

[0035] Specifically, multiple fixing slots 601 are provided on both sides of the rectangular base 502, and a fixing mechanism adapted to the fixing slots 601 is provided on the rotating base 404. The fixing mechanism includes a threaded hole 602 and a fixing bolt 603. A threaded hole 602 is provided on the inner wall of one side of the rectangular slot 501, and a fixing bolt 603 is installed in the threaded hole 602, and the fixing bolt 603 is adapted to the corresponding fixing slot 601.

[0036] Specifically, a guide hole 407 with an open top is provided on one side of the vertical plate 102, and the rotating seat 404, rectangular seat 502, and extrusion roller 406 are adapted to the guide hole 407.

[0037] Specifically, two limiting seats 703 are fixedly installed on the top of the crossbar 202. The limiting seats 703 are located on the left side of the corresponding sliding seats 203, and the limiting seats 703 are adapted to the corresponding sliding seats 203.

[0038] Specifically, two baffles 701 are fixedly installed on the top of the crossbar 202, and the baffles 701 are located on the right side of the corresponding sliding seat 203. A return spring 702 is fixedly installed on the left side of the baffles 701, and one end of the return spring 702 is fixedly installed on the corresponding sliding seat 203.

[0039] Specifically, the number of rotating seats 404 is set to one to three, and the one to three rotating seats 404 are equally spaced. A controller is installed on the other side of the vertical plate 102, and the drive motor 403 is electrically connected to the controller.

[0040] Working principle: Rice is placed into the grading screen housing 204. The grading screen housing 204 undergoes preliminary sieving through the first sieve plate 301, causing small rice particles and dust to fall onto the second sieve plate 303. Dust or broken rice particles can pass through the second sieve plate 303 and be discharged through the discharge pipe 305. Larger rice particles on the first sieve plate 301 are discharged through the guide plate 302, while smaller rice particles on the second sieve plate 303 are discharged through the discharge pipe 304. During rice sieving, the drive motor 403 drives the rotating shaft 402 and the rotating seat 404 to rotate. The rotating seat 404, through the rectangular seat 502, drives the U-shaped seat 405 and the pressure roller 406 to rotate. The rotating pressure roller 406 presses the grading screen housing 204 to the right, causing the grading screen housing 204 to move along the sliding seat 203. The pressure roller 406 is pressed against the return spring 702. When the pressure roller 406 separates from the grading screen housing 204, the return spring 702 can push the grading screen housing 204 to return to its original position. When the rotating seat 404 and the pressure roller 406 rotate continuously, the grading screen housing 204 can move back and forth, which can improve the efficiency of rice sieving. By rotating the fixing bolt 603, under the action of the threaded hole 602, the fixing bolt 603 can rotate and move at the same time, so that the fixing bolt 603 can be inserted into or released from the fixing groove 601, which can achieve the purpose of fixing and releasing the rectangular seat 502. By moving the adjusting seat, the distance between the pressure roller 406 and the rotating shaft 402 can be adjusted, thereby adjusting the amplitude of the reciprocating movement of the grading screen housing 204.

[0041] The above provides a detailed description of a flat rotary grading sieve for rice processing provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A flat rotary grading sieve for rice processing, characterized in that, The system includes a base (101), a vertical plate (102) fixedly installed on one side of the base (101), two vertical rods (201) fixedly installed on the top of the base (101), a horizontal rod (202) fixedly installed on one side of the vertical rods (201), one end of the horizontal rod (202) fixedly installed on the vertical plate (102), two sliding seats (203) slidably mounted on the vertical rods (201), and a single grading screen housing (204) fixedly installed on multiple sliding seats (203); a first sieve plate (301) is installed inside the grading screen housing (204), and a guide plate (302) is installed on one side of the grading screen housing (204), the guide plate (302) being adapted to the first sieve plate (301), and the grading... A second sieve plate (303) is installed inside the grading sieve housing (204). A discharge pipe (304) is installed on the second sieve plate (303). The bottom end of the discharge pipe (304) penetrates the grading sieve housing (204). A waste discharge pipe (305) is installed at the bottom of the grading sieve housing (204). Two fixing plates (401) are fixedly installed on one side of the vertical plate (102). The two fixing plates (401) are rotatably mounted on the same rotating shaft (402) on the side close to each other. A drive motor (403) is installed on the front side of the fixing plate (401). The output shaft of the drive motor (403) is fixedly connected to the rotating shaft (402). A pressing mechanism for pressing the grading sieve housing (204) is provided on the rotating shaft (402).

2. The flat rotary grading sieve for rice processing according to claim 1, characterized in that: The extrusion mechanism includes a rotating seat (404), a U-shaped seat (405), and an extrusion roller (406). The rotating seat (404) is fixedly sleeved on the rotating shaft (402). The U-shaped seat (405) is provided below the rotating seat (404), and the extrusion roller (406) is rotatably installed inside the U-shaped seat (405).

3. The flat rotary grading sieve for rice processing according to claim 2, characterized in that: The bottom of the rotating seat (404) is provided with a rectangular groove (501), and a rectangular seat (502) is slidably installed in the rectangular groove (501), and the bottom of the rectangular seat (502) is fixedly installed on the U-shaped seat (405).

4. The flat rotary grading sieve for rice processing according to claim 3, characterized in that: The rectangular base (502) has multiple fixing slots (601) on both sides, and the rotating base (404) has a fixing mechanism that matches the fixing slots (601).

5. A flat rotary grading sieve for rice processing according to claim 4, characterized in that: The fixing mechanism includes a threaded hole (602) and a fixing bolt (603). A threaded hole (602) is provided on one inner wall of the rectangular groove (501). A fixing bolt (603) is installed in the threaded hole (602), and the fixing bolt (603) is adapted to the corresponding fixing groove (601).

6. The flat rotary grading sieve for rice processing according to claim 1, characterized in that: The vertical plate (102) has a guide hole (407) with an open top on one side, and the rotating seat (404), rectangular seat (502), and extrusion roller (406) are adapted to the guide hole (407).

7. A flat rotary grading sieve for rice processing according to claim 1, characterized in that: Two limiting seats (703) are fixedly installed on the top of the crossbar (202). The limiting seats (703) are located on the left side of the corresponding sliding seats (203), and the limiting seats (703) are adapted to the corresponding sliding seats (203).

8. A flat rotary grading sieve for rice processing according to claim 1, characterized in that: Two baffles (701) are fixedly installed on the top of the crossbar (202), and the baffles (701) are located on the right side of the corresponding sliding seat (203). A return spring (702) is fixedly installed on the left side of the baffles (701), and one end of the return spring (702) is fixedly installed on the corresponding sliding seat (203).

9. A flat rotary grading sieve for rice processing according to claim 2, characterized in that: The number of rotating seats (404) is set to one to three, and the one to three rotating seats (404) are equally spaced.

10. A flat rotary grading sieve for rice processing according to claim 1, characterized in that: A controller is installed on the other side of the vertical plate (102), and the drive motor (403) is electrically connected to the controller.

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