A rice production and processing impurity removing device

The cleaning plate driven by the drive motor and vibrator automatically removes impurities during rice processing, solving the problems of fatigue and incomplete cleaning caused by manual operation, and improving screening accuracy and rice quality.

CN224463203UActive Publication Date: 2026-07-07DAZHOU TAOHUA RICE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DAZHOU TAOHUA RICE CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In the current rice processing, the impurity removal device requires manual operation, which leads to operator fatigue, incomplete cleaning, and easy re-scattering of impurities, affecting the screening accuracy and rice quality.

Method used

Design a device for removing impurities in rice production and processing. The device uses a drive motor to move a cleaning plate along the surface of a screening plate. Combined with a spring structure and a vibrator, it can achieve automated impurity removal. The impurities are directly pushed to a designated collection area to prevent secondary spillage.

Benefits of technology

It achieves automated impurity removal without manual operation, ensuring the transparency of the screening plate, improving screening accuracy and efficiency, and guaranteeing rice quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224463203U_ABST
    Figure CN224463203U_ABST
Patent Text Reader

Abstract

The utility model discloses a rice production and processing is with the impurity removing device relates to rice production and processing technical field, including the chassis and the operation shell of installing at the top of chassis, and the bottom of operation shell is provided with the discharge gate, and the inner chamber of operation shell is provided with the screening plate, and the surface of screening plate is provided with the cleaning spare of being convenient for to screening plate removes the impurity, the utility model discloses beneficial effect is: through the setting of cleaning spare, utilize drive motor and drive the cleaning plate along the stable movement of screening plate surface, utilize the first spring's stretch in the process of moving and betterly adhere in the screen hole of screening plate, and the impurity of jointing is completely cleaned and stripped, effectively avoid the drawback of traditional spring plate cleaning mode, and can complete the impurity removal without manual operation, and can push the impurity under the cleaning directly to the designated collection area, solve the problem that the impurity is only bounced to the other side and accumulated, and the problem of incomplete treatment, and prevent the secondary scattering of the impurity and pollute the screening environment.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of rice production and processing technology, and in particular to a purification device for rice production and processing. Background Technology

[0002] Currently, during the rice processing process, a large amount of dust, debris, and impurities often get mixed in. At this time, it is necessary to use a purification device to remove impurities from the rice and screen it to fully separate the rice from the impurities. If the rice is not separated, it will not only affect the quality and grade of the rice, but also reduce its economic value.

[0003] In existing rice impurity removal technologies, although vibrating plates are used to eject impurities stuck in the screen, this method has obvious limitations. The cleaning process relies on manual operation of the plates, and prolonged repetitive work can easily lead to operator fatigue. At the same time, it is difficult to control the force and frequency of manual operation. Repeated action of the plates on the screen can cause the screen to loosen, directly affecting the rice screening accuracy. More importantly, this cleaning method is not thorough enough in removing impurities. The plates often only bounce impurities from the screen surface to the other side, failing to achieve effective separation and collection of impurities. Instead, the secondary scattering of impurities may contaminate the screening environment, further affecting the impurity removal effect. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A device for removing impurities in rice production and processing includes a base frame and an operating shell installed on top of the base frame. The bottom of the operating shell has a discharge port. The inner cavity of the operating shell is provided with a screening plate. The surface of the screening plate is provided with cleaning parts to facilitate the removal of impurities from the screening plate. A drive motor is fixedly connected to the bottom of the screening plate, and movable plates are fixedly connected to both sides of the output shaft of the drive motor.

[0007] The cleaning component includes a fixing plate and a cleaning plate, the fixing plate being disposed on the top of the cleaning plate and the cleaning plate being disposed on the surface of the screening plate.

[0008] As a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, wherein: the cleaning plate is fixedly connected to two sides with a locking block, the inner cavity of the locking block is provided with a locking groove, and the inner cavity of the locking groove is inserted with a plug rod.

[0009] In a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, a movable sleeve is fixedly connected to the top of the insertion rod, a fixed rod is inserted into the inner cavity of the movable sleeve, and the bottom of the fixed rod is fixedly connected to a fixed plate.

[0010] In a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, a first spring is fixedly connected to the top of the movable sleeve, and the inner cavity of the first spring is fixedly connected to the outside of the fixed rod.

[0011] As a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, an auxiliary block is fixedly connected to the top of one side of the fixed plate, an auxiliary rod is inserted into the inner cavity of the auxiliary block, and both ends of the auxiliary rod are fixedly connected to the moving plate.

[0012] In a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, a second spring is fixedly connected to the top of the auxiliary block, and the inner cavity of the second spring is fixedly connected to the outside of the auxiliary rod.

[0013] As a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, a vibrator is fixedly connected to one side of the inner cavity of the operating shell, and eccentric wheels are fixedly connected to both sides of the output shaft of the vibrator, with the surface of the eccentric wheels in contact with the bottom of the screening plate.

[0014] As a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, the four corners of the screening plate are fixedly connected to sliding sleeves, the inner cavity of the sliding sleeves is inserted with a sliding rod, both ends of the sliding rod are fixedly connected to the operating shell, and both ends of the sliding sleeves are connected to a third spring, and the inner cavity of the third spring is fixedly connected to the outside of the sliding rod.

[0015] As a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, the top of the operating shell is fixedly connected to a feed inlet for feeding rice.

[0016] As a preferred embodiment of the impurity removal device for rice production and processing described in this utility model, wherein: both ends of the inner cavity on one side of the operating shell are fixedly connected with fans for assisting in the removal of impurities from rice.

[0017] The beneficial effects of this utility model are as follows: By setting up the cleaning component, the cleaning plate is driven by the drive motor to move smoothly along the surface of the screening plate. During the movement, the extension of the first spring is used to better fit the cleaning plate into the sieve holes of the screening plate, thoroughly cleaning and peeling off the stuck impurities. This effectively avoids the drawbacks of the traditional spring plate cleaning method. Impurities can be removed without manual operation, and the cleaned impurities can be directly pushed to the designated collection area. This solves the problem that impurities are only bounced to the other side and accumulate, resulting in incomplete treatment. It also prevents impurities from scattering again and polluting the screening environment, ensuring that the screening plate always maintains a good permeability and ensuring the stability of the impurity removal effect of rice. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of 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. Among them:

[0019] Figure 1 This is a structural diagram of a purification device used in rice production and processing.

[0020] Figure 2 Another perspective view of the overall structure of the impurity removal device used in rice production and processing.

[0021] Figure 3 Diagram of the internal structure of the operating shell of a purification device used in rice production and processing.

[0022] Figure 4 A structural diagram of the drive motor for a purification device used in rice production and processing.

[0023] Figure 5 Impurity removal device for rice production and processing Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Figure 6 A structural diagram of a vibrating machine used in rice production and processing for removing impurities.

[0025] The following components are labeled in the diagram: 1. Base frame; 2. Operating shell; 3. Discharge port; 4. Screening plate; 5. Cleaning component; 501. Fixing plate; 502. Cleaning plate; 503. Locking block; 504. Insert rod; 505. Movable sleeve; 506. Fixing rod; 507. First spring; 508. Auxiliary block; 509. Auxiliary rod; 510. Second spring; 6. Drive motor; 7. Moving plate; 8. Vibrator; 9. Eccentric wheel; 10. Sliding sleeve; 11. Sliding rod; 12. Third spring; 13. Feed port; 14. Fan. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1:

[0030] Reference Figures 1-6 This is the first embodiment of the present invention, which provides a rice processing impurity removal device. The impurity removal device includes a cleaning component 5. Through the setting of the cleaning component 5, the cleaning plate 502 is driven by the drive motor 6 to move smoothly along the surface of the screening plate 4. During the movement, the extension of the first spring 507 is used to better fit the cleaning plate 502 into the sieve holes of the screening plate 4, thoroughly cleaning and peeling off the stuck impurities. This effectively avoids the drawbacks of the traditional spring plate cleaning method. Impurity removal can be completed without manual operation, and the cleaned impurities can be directly pushed to the designated collection area. This solves the problem that impurities are only bounced to the other side and accumulate, resulting in incomplete treatment. It also prevents impurities from being scattered again and polluting the screening environment, ensuring that the screening plate 4 always maintains a good permeability and ensuring the stability of the rice impurity removal effect.

[0031] It includes a base frame 1 and an operating shell 2 installed on top of the base frame 1. The bottom of the operating shell 2 is provided with a discharge port 3. The inner cavity of the operating shell 2 is provided with a screening plate 4. The surface of the screening plate 4 is provided with a cleaning part 5 to facilitate the removal of impurities from the screening plate 4. The bottom of the screening plate 4 is fixedly connected to a drive motor 6, and the two sides of the output shaft of the drive motor 6 are fixedly connected to moving plates 7.

[0032] The operating shell 2 allows for easy installation of components on its surface to facilitate subsequent rice processing. The discharge port 3 facilitates the discharge of screened rice. The screening plate 4 facilitates rice screening. The cleaning component 5 facilitates the cleaning of impurities stuck on the surface of the screening plate 4. The drive motor 6 facilitates the movement of the moving plate 7, which in turn moves and cleans the fixed plate 501 and the cleaning plate 502.

[0033] The cleaning component 5 includes a fixing plate 501 and a cleaning plate 502. The fixing plate 501 is disposed on the top of the cleaning plate 502, and the cleaning plate 502 is disposed on the surface of the screening plate 4.

[0034] The fixing plate 501 allows for easy fixing and disassembly of the cleaning plate 502, and the cleaning plate 502 facilitates the cleaning of impurities stuck on the surface of the screening plate 4.

[0035] Example 2:

[0036] Reference Figure 4 and Figure 5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] Specifically, the cleaning plate 502 is fixedly connected to two sides with a locking block 503. The inner cavity of the locking block 503 is provided with a locking groove, and the inner cavity of the locking groove is inserted with a rod 504.

[0038] When it is necessary to clean the impurities stuck on the surface of the screening plate 4, the drive motor 6 is used to move the moving plate 7, which in turn moves the fixed plate 501 and the cleaning plate 502. While the fixed plate 501 moves, the auxiliary block 508 moves on the surface of the auxiliary rod 509. Simultaneously, the auxiliary block 508 moves, squeezing and rebounding the second spring 510. The extension of the second spring 510 then better fits the cleaning plate 502 into the sieve holes of the screening plate 4. The brush at the bottom of the cleaning plate 502 makes full contact with the surface of the screening plate 4, and the impurities are removed through continuous sliding. Impurities attached to the screen holes and surface are thoroughly cleaned and removed, thereby achieving efficient treatment of impurities on the screening plate 4 and ensuring the transparency of the screening plate 4. Subsequently, if the brush at the bottom of the cleaning plate 502 wears down during long-term use and needs to be replaced, first pull the movable sleeve 505 upward. While the movable sleeve 505 is being pulled, the first spring 507 is squeezed, and then the insert rod 504 disengages from the inner cavity of the slot. At that time, the cleaning plate 502 is pulled outward, and the locking block 503 is disengaged from the surface of the insert rod 504. This effectively allows for the disassembly and replacement of the cleaning plate 502, improving the practicality of the cleaning plate 502.

[0039] Specifically, a movable sleeve 505 is fixedly connected to the top of the insertion rod 504, a fixed rod 506 is inserted into the inner cavity of the movable sleeve 505, and the bottom of the fixed rod 506 is fixedly connected to the fixed plate 501.

[0040] By using the movable sleeve 505 and the fixed rod 506 together, the insertion rod 504 can be easily installed, and the locking block 503 can be fixed by the insertion rod 504, ensuring the cleaning plate 502 is firm and stable during use.

[0041] Specifically, the top of the movable sleeve 505 is fixedly connected to a first spring 507, and the inner cavity of the first spring 507 is fixedly connected to the outside of the fixed rod 506.

[0042] By setting the first spring 507, the extension of the first spring 507 is used to hold the movable sleeve 505 in place, ensuring that the insertion rod 504 at the bottom of the movable sleeve 505 is firmly inserted into the inner cavity of the slot, thereby improving the stability of the cleaning plate 502.

[0043] Specifically, an auxiliary block 508 is fixedly connected to the top of one side of the fixed plate 501, and an auxiliary rod 509 is inserted into the inner cavity of the auxiliary block 508, with both ends of the auxiliary rod 509 fixedly connected to the movable plate 7.

[0044] By using the auxiliary block 508 and the auxiliary rod 509 together, the cleaning plate 502 can be cleaned more easily during the moving cleaning process of the fixed plate 501 and the cleaning plate 502, thus improving the integrity of cleaning the cleaning plate 502 and ensuring that the cleaning plate 502 is completely inserted into the screen hole of the screening plate 4, thereby improving the cleaning effect of the impurities stuck in the screening plate 4.

[0045] Specifically, a second spring 510 is fixedly connected to the top of the auxiliary block 508, and the inner cavity of the second spring 510 is fixedly connected to the outside of the auxiliary rod 509.

[0046] The second spring 510 facilitates the pressure and buffering effect on the auxiliary block 508, ensuring the stability of the auxiliary block 508 during movement and ensuring the integrity of the bottom brush of the cleaning plate 502 on the screening plate 4, thereby improving the effect of the screening plate 4.

[0047] Example 3:

[0048] Reference Figure 2 and Figure 6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0049] Specifically, a vibrator 8 is fixedly connected to one side of the inner cavity of the operating shell 2, and eccentric wheels 9 are fixedly connected to both sides of the output shaft of the vibrator 8, with the surface of the eccentric wheels 9 in contact with the bottom of the screening plate 4.

[0050] When rice needs to be screened by the vibration of the screening plate 4, the vibrator 8 is started first. The vibration driving force of the vibrator 8 drives the eccentric wheel 9 to rotate, and the eccentric wheel 9 drives the screening plate 4 to vibrate at high frequency. During the vibration, the screening plate 4 drives the sliding sleeve 10 to slide back and forth along the surface of the sliding rod 11. When the sliding sleeve 10 moves, it will alternately squeeze and release the third spring 12. The reciprocating extension and rebound of the third spring 12 will act on the sliding sleeve 10 in the opposite direction, further enhancing the vibration amplitude and frequency of the screening plate 4, thereby effectively improving the vibration effect of the screening plate 4. This allows the rice to come into fuller contact with the screen during the screening process, speeding up the separation of impurities and qualified rice grains, and significantly improving the overall screening efficiency and accuracy.

[0051] Specifically, each of the four corners of the screening plate 4 is fixedly connected to a sliding sleeve 10, and a sliding rod 11 is inserted into the inner cavity of the sliding sleeve 10. Both ends of the sliding rod 11 are fixedly connected to the operating shell 2, and both ends of the sliding sleeve 10 are connected to a third spring 12, and the inner cavity of the third spring 12 is fixedly connected to the outside of the sliding rod 11.

[0052] By using the sliding sleeve 10 and the sliding rod 11 together, the screening plate 4 can be moved up and down stably, ensuring the stability of the screening plate 4. The third spring 12 can be used to make the screening plate 4 reciprocate during the movement, thereby increasing the vibration screening frequency of the screening plate 4.

[0053] Specifically, the top of the operating shell 2 is fixedly connected to an inlet 13 for feeding rice.

[0054] The feed inlet 13 allows for convenient feeding of rice that needs to be processed, and the processing effect can be improved.

[0055] Specifically, fans 14 for assisting in removing impurities from rice are fixedly connected to both ends of the inner cavity on one side of the operating shell 2.

[0056] The fan 14 allows for easy blowing out of rice husks during the rice processing, improving the rice screening effect.

[0057] In use, the rice to be processed is first poured into the inner cavity of the operating shell 2 through the feed inlet 13. Then, the vibrator 8 is started, and its vibration drive force rotates the eccentric wheel 9, which in turn drives the screening plate 4 to vibrate at high frequency. During vibration, the screening plate 4 synchronously drives the sliding sleeve 10 to slide back and forth along the surface of the sliding rod 11. As the sliding sleeve 10 moves, it alternately compresses and releases the third spring 12. The reciprocating stretching and rebound of the third spring 12 then acts in the opposite direction on the sliding sleeve 10, further enhancing the vibration amplitude and frequency of the screening plate 4, thereby effectively improving the vibration efficiency of the screening plate 4. This allows the rice to make more thorough contact with the screen during the screening process, accelerating the separation of impurities from qualified rice grains and significantly improving the overall screening efficiency and accuracy. During this process, fan 14 can be turned on; the rotation of fan 14 generates airflow that blows out the rice husks, improving the screening effect. The screened rice is then discharged through outlet 3, while the intercepted impurities are discharged outside the operating shell 2 through the inclined angle of the screening plate 4. Finally, when it is necessary to clean the impurities stuck on the surface of the screening plate 4, the drive motor 6 is used first. Composed of a threaded rod and a threaded sleeve, the movable plate 7 moves, and the movable plate 7 moves the fixed plate 501 and the cleaning plate 502. While the fixed plate 501 moves, the auxiliary block 508 moves against the surface of the auxiliary rod 509. Simultaneously, the auxiliary block 508 compresses and rebounds the second spring 510, which in turn stretches the cleaning plate 502 to better fit within the sieve holes of the screening plate 4. The brush at the bottom of the cleaning plate 502 makes full contact with the surface of the screening plate 4, and through continuous sliding, removes impurities stuck in the sieve holes and surface. The bottom cleaning and peeling process effectively removes impurities from the screening plate 4, ensuring its permeability. If the brushes at the bottom of the cleaning plate 502 wear out during long-term use and need replacement, first pull the movable sleeve 505 upwards. Simultaneously, the first spring 507 is compressed, causing the insertion rod 504 to disengage from the inner cavity of the slot. This pulls the cleaning plate 502 outwards and causes the locking block 503 to disengage from the surface of the insertion rod 504. This allows for effective disassembly and replacement of the cleaning plate 502, improving its practicality.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A purification device for rice production and processing, comprising a base frame (1) and an operating shell (2) installed on top of the base frame (1), wherein the bottom of the operating shell (2) is provided with a discharge port (3), characterized in that: The inner cavity of the operating shell (2) is provided with a screening plate (4), and the surface of the screening plate (4) is provided with a cleaning part (5) to facilitate the removal of impurities from the screening plate (4). The bottom of the screening plate (4) is fixedly connected to a drive motor (6), and the two sides of the output shaft of the drive motor (6) are fixedly connected to moving plates (7). The cleaning component (5) includes a fixing plate (501) and a cleaning plate (502). The fixing plate (501) is disposed on the top of the cleaning plate (502), and the cleaning plate (502) is disposed on the surface of the screening plate (4).

2. The impurity removal device for rice production and processing as described in claim 1, characterized in that: The cleaning plate (502) is fixedly connected to two sides with a locking block (503). The inner cavity of the locking block (503) is provided with a locking groove, and a plug rod (504) is inserted into the inner cavity of the locking groove.

3. The impurity removal device for rice production and processing as described in claim 2, characterized in that: The top of the insertion rod (504) is fixedly connected to a movable sleeve (505), and a fixed rod (506) is inserted into the inner cavity of the movable sleeve (505). The bottom of the fixed rod (506) is fixedly connected to the fixed plate (501).

4. The impurity removal device for rice production and processing as described in claim 3, characterized in that: The top of the movable sleeve (505) is fixedly connected to a first spring (507), and the inner cavity of the first spring (507) is fixedly connected to the outside of the fixed rod (506).

5. The impurity removal device for rice production and processing as described in claim 4, characterized in that: An auxiliary block (508) is fixedly connected to the top of one side of the fixed plate (501). An auxiliary rod (509) is inserted into the inner cavity of the auxiliary block (508), and both ends of the auxiliary rod (509) are fixedly connected to the movable plate (7).

6. The impurity removal device for rice production and processing as described in claim 5, characterized in that: The top of the auxiliary block (508) is fixedly connected to a second spring (510), and the inner cavity of the second spring (510) is fixedly connected to the outside of the auxiliary rod (509).

7. The impurity removal device for rice production and processing as described in claim 1, characterized in that: A vibrator (8) is fixedly connected to one side of the inner cavity of the operating shell (2), and eccentric wheels (9) are fixedly connected to both sides of the output shaft of the vibrator (8), with the surface of the eccentric wheels (9) in contact with the bottom of the screening plate (4).

8. The impurity removal device for rice production and processing as described in claim 1, characterized in that: Each of the four corners of the screening plate (4) is fixedly connected to a sliding sleeve (10), and a sliding rod (11) is inserted into the inner cavity of the sliding sleeve (10). Both ends of the sliding rod (11) are fixedly connected to the operating shell (2), and both ends of the sliding sleeve (10) are connected to a third spring (12), and the inner cavity of the third spring (12) is fixedly connected to the outside of the sliding rod (11).

9. The impurity removal device for rice production and processing as described in claim 1, characterized in that: The top of the operating shell (2) is fixedly connected to a feed port (13) for feeding rice.

10. The impurity removal device for rice production and processing as described in claim 1, characterized in that: Both ends of the inner cavity on one side of the operating shell (2) are fixedly connected to fans (14) for assisting in removing impurities from rice.