Feeding mechanism of white rice classifying screen
By using a stepper motor-driven vibration and collection mechanism, the problems of uneven material distribution and impurity wear in the feeding mechanism of the white rice grading screen are solved, achieving uniform feeding of white rice material and separation of impurities, thus improving screening efficiency and equipment stability.
Patent Information
- Application Number
- CN202520193897.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-07
AI Technical Summary
The existing white rice grading screen feeding mechanism requires manual feeding, which leads to uneven material distribution and impurities that easily wear down the screen and cause blockages.
The vibration mechanism driven by a stepper motor and the compression spring work together to feed the material evenly through the vibration of the guide shell, and use the collection mechanism to separate and collect the debris and particles, thereby reducing wear.
This method achieves uniform feeding of white rice, reduces wear and clogging of the screen caused by impurities, and improves screening efficiency and equipment stability.
Smart Images
Figure CN223819105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of white rice processing technology, specifically to a white rice grading and feeding mechanism. Background Technology
[0002] A rice grading screen is a specialized device used to separate rice into different grades of crushing. Its feeding mechanism is an important component of the device. The feeding mechanism allows the rice material to be fed into the screen shell, enabling the screen shell to process the rice material.
[0003] However, existing rice grading screen feeding mechanisms require operators to manually lift and tilt the rice material to feed it into the screening shell through the feeding port. This operation is prone to uneven feeding due to human factors, causing the rice material to concentrate on the screening screen. At the same time, most of the rice material will be mixed with some particles and debris. These impurities will rub and collide with the screen as they pass through, causing scratches and other wear on the screen surface, and the particles and debris will clog the screen mesh. Utility Model Content
[0004] The purpose of this invention is to provide a rice grading and feeding mechanism to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a white rice grading sieve feeding mechanism, comprising a sieve shell and a feed inlet bolted to the top of the sieve shell, and further comprising:
[0006] The discharge port is installed on one side of the screening shell, the feed port is installed on one side of the feed port, the top of the screening shell is bolted to the support frame, the support frame is bolted to one side of the stepper motor, the stepper motor is provided with a vibration mechanism on one side, and the support frame is fixedly connected to a fixing block on one side.
[0007] A compression spring is fixedly connected to the bottom of the fixed block. A connecting rod is slidably connected to the inner cavity of the fixed block. An installation shell is bolted to the top of the screening shell. A collection mechanism is provided in the inner cavity of the installation shell.
[0008] Preferably, the vibration mechanism includes a rotating rod fixedly connected to the output shaft of a stepper motor. A protrusion is fixedly connected to the surface of the rotating rod, and a corresponding block is slidably connected to the surface of the protrusion. The top of the corresponding block is fixedly connected to the bottom of a compression spring, and the top of the corresponding block is fixedly connected to the bottom of a connecting rod.
[0009] Preferably, the collection mechanism includes a collection box slidably connected to the inner cavity of the mounting housing, the inner cavity of the collection box being fitted with a filter screen and a fan.
[0010] Preferably, a splash guard is installed on the top of the feed inlet, and one side of the splash guard is designed to be open.
[0011] Preferably, the surface of the protrusion is provided with a guide groove, and the inner cavity of the guide groove is slidably connected to the surface of the corresponding block.
[0012] Preferably, a handle is bolted to the surface of the collection box, and the handle is a hollow design.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention, through the cooperation of a stepper motor, a vibration mechanism, a compression spring, and a fixing block, enables the connecting rod to drive the guide shell to vibrate within the inner cavity of the mounting shell. This allows the white rice material to be evenly fed into the interior of the screening shell through the feed inlet, and separates particles and debris from the white rice material. Simultaneously, with the cooperation of the collection mechanism and the mounting shell, the debris and particles can be collected, reducing wear on the screen mesh inside the screening shell caused by debris and particles. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a cross-sectional structural diagram of the splash-proof shell in this utility model;
[0017] Figure 3 This is a schematic diagram of the material guide shell and the mounting shell in this utility model;
[0018] Figure 4 This is a schematic diagram of the vibration mechanism in this utility model;
[0019] Figure 5 This is a schematic diagram of the collecting mechanism in this utility model.
[0020] In the diagram: 1. Screening shell; 2. Feed inlet; 3. Discharge outlet; 4. Splash shield; 5. Guide shell; 6. Support frame; 7. Stepper motor; 8. Vibration mechanism; 81. Rotating rod; 82. Protrusion; 83. Corresponding block; 9. Guide groove; 10. Compression spring; 11. Connecting rod; 12. Fixing block; 13. Mounting shell; 14. Collection mechanism; 141. Collection box; 142. Filter screen; 143. Fan; 15. Handle. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-5 As shown, a rice grading and feeding mechanism includes a screening shell 1, which can grade and screen rice. A feed inlet 2 is bolted to the top of the screening shell 1, allowing workers to add rice material into the screening shell 1 for processing. A discharge outlet 3 is installed on one side of the screening shell 1, allowing the screened rice material to be discharged. A splash guard 4 is installed on the top of the feed inlet 2, with one side of the splash guard 4 being open to prevent rice from splashing out of the feed inlet 2. A guide shell 5 is installed on one side of the feed inlet 2 to guide the rice material. A support frame 6 is bolted to the top of the screening shell 1, and a stepper motor 7 is bolted to one side of the support frame 6. A vibration mechanism 8 is installed on one side of the stepper motor 7, enabling the vibration mechanism 8 to operate in cooperation with the support frame 6 and the stepper motor 7. A fixing block 12 is fixedly connected to one side of the support frame 6, and the bottom of the fixing block 12... A compression spring 10 is fixedly connected, and a connecting rod 11 is slidably connected to the inner cavity of the fixing block 12. With the cooperation of the vibration mechanism 8, the compression spring 10, and the fixing block 12, the connecting rod 11 can vibrate on one side of the support frame 6. The top of the connecting rod 11 is fixedly connected to the surface of the guide shell 5. Under the action of the vibration of the connecting rod 11, the guide shell 5 can vibrate on one side of the feed inlet 2, so that the white rice material can be evenly fed into the interior of the screening shell 1 through the feed inlet 2, and the white rice material can be pre-screened, reducing the wear of the screen inside the screening shell 1 caused by the debris and particles in the white rice material. An installation shell 13 is bolted to the top of the screening shell 1. The inner cavity of the installation shell 13 is slidably connected to the surface of the guide shell 5. A collection mechanism 14 is provided in the inner cavity of the installation shell 13. With the cooperation of the installation shell 13 and the collection mechanism 14, the debris and particles screened by the guide shell 5 can be collected, so as to facilitate the collection of debris and particles by the staff.
[0023] The vibration mechanism 8 includes a rotating rod 81, one end of which is fixedly connected to the output shaft of the stepper motor 7. A protrusion 82 is fixedly connected to the surface of the rotating rod 81, and a corresponding block 83 is slidably connected to the surface of the protrusion 82. The top of the corresponding block 83 is fixedly connected to the bottom of the compression spring 10, and the top of the corresponding block 83 is fixedly connected to the bottom of the connecting rod 11. With the cooperation of the stepper motor 7 and the rotating rod 81, the protrusion 82 can rotate on one side of the support frame 6, and under the action of the corresponding block 83, the compression spring 10, and the fixed block 12, the connecting rod 81 can rotate. The connecting rod 11 drives the guide shell 5 to vibrate in the inner cavity of the mounting shell 13, so that the white rice material is evenly fed into the interior of the screening shell 1 through the feed port 2, and the wear of particles and debris on the screen inside the screening shell 1 is reduced, thereby improving the practicality of the mechanism. The surface of the protrusion 82 is provided with a guide groove 9, and the inner cavity of the guide groove 9 is slidably connected to the surface of the corresponding block 83. Under the action of the guide groove 9, the position of the corresponding block 83 is effectively prevented from shifting during operation, increasing the stability of the vibration mechanism 8, thereby improving the stability of the mechanism.
[0024] The collection mechanism 14 includes a collection box 141, the surface of which is slidably connected to the inner cavity of the mounting shell 13. A filter screen 142 is installed in the inner cavity of the collection box 141, and a fan 143 is installed in the inner cavity of the collection box 141. Under the action of the guide shell 5, the debris and particles can fall into the interior of the collection box 141. With the cooperation of the fan 143, the adsorption rate of debris and particles by the mechanism can be increased, so that the debris and particles can remain on the top of the filter screen 142, reducing the damage to the screen inside the screening shell 1 caused by debris and particles. A handle 15 is bolted to the surface of the collection box 141. The handle 15 is hollow, which makes it convenient for the operator to pull the collection box 141 out of the inner cavity of the mounting shell 13.
[0025] Working principle: When the operator needs to add white rice material into the screening shell 1, the operator first adds the white rice material into the guide shell 5. Under the action of the stepper motor 7, the rotating rod 81 drives the protrusion 82 to rotate on one side of the support frame 6. When the longer part of the protrusion 82 corresponds to the corresponding block 83, the corresponding block 83 drives the compression spring 10 to compress at the bottom of the fixed block 12, and causes the corresponding block 83 to move the connecting rod 11 upward. When the longer part of the protrusion 82 intersects with the corresponding block 83, under the action of the rebound force of the compression spring 10, the corresponding block 82 can move upward. Block 83 drives the connecting rod 11 to move downwards, thereby causing the connecting rod 11 to vibrate the guide shell 5 inside the mounting shell 13. This allows the white rice material on the surface of the guide shell 5 to enter the screening shell 1 evenly through the feed inlet 2, and causes the particles and debris on the surface of the guide shell 5 to fall into the collection box 141. At the same time, under the action of the fan 143, the filtration effect of the debris and particles is improved, so that the debris and particles remain on the top of the filter screen 142. After the white rice material is screened, the operator closes the mechanism and then uses the handle 15 to pull out the collection box 141 for cleaning.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rice grading sieve feeding mechanism, comprising a sieve shell (1) and a feed inlet (2) bolted to the top of the sieve shell (1), characterized in that, Also includes: The discharge port (3) is installed on one side of the screening shell (1), the feed port (2) is equipped with a guide shell (5) on one side, the top of the screening shell (1) is bolted with a support frame (6), a stepper motor (7) is bolted to one side of the support frame (6), a vibration mechanism (8) is provided on one side of the stepper motor (7), and a fixing block (12) is fixedly connected to one side of the support frame (6). A compression spring (10) is fixedly connected to the bottom of the fixed block (12). A connecting rod (11) is slidably connected to the inner cavity of the fixed block (12). An installation shell (13) is bolted to the top of the screening shell (1). A collection mechanism (14) is provided in the inner cavity of the installation shell (13).
2. The white rice grading screen feeding mechanism according to claim 1, characterized in that: The vibration mechanism (8) includes a rotating rod (81) fixedly connected to the output shaft of the stepper motor (7). A protrusion (82) is fixedly connected to the surface of the rotating rod (81). A corresponding block (83) is slidably connected to the surface of the protrusion (82). The top of the corresponding block (83) is fixedly connected to the bottom of the compression spring (10). The top of the corresponding block (83) is fixedly connected to the bottom of the connecting rod (11).
3. The white rice grading screen feeding mechanism according to claim 1, characterized in that: The collection mechanism (14) includes a collection box (141) slidably connected to the inner cavity of the mounting shell (13), a filter screen (142) is installed in the inner cavity of the collection box (141), and a fan (143) is installed in the inner cavity of the collection box (141).
4. The rice grading sieve feeding mechanism according to claim 1, characterized in that: The top of the feed inlet (2) is equipped with a splash guard (4), and one side of the splash guard (4) is an open design.
5. The rice grading sieve feeding mechanism according to claim 2, characterized in that: The surface of the protrusion (82) is provided with a guide groove (9), and the inner cavity of the guide groove (9) is slidably connected to the surface of the corresponding block (83).
6. The white rice grading screen feeding mechanism according to claim 3, characterized in that: The surface of the collection box (141) is bolted with a handle (15), which is a hollow design.