Novel fermented bean curd making raw material screening device
By designing a new type of raw material screening device for fermented bean curd production with replaceable screening screens and a uniform material dispersing structure, the problems of narrow applicability and inconvenient maintenance of existing devices have been solved, achieving flexible screening and efficient cleaning, and improving the practicality and screening effect of the equipment.
Patent Information
- Application Number
- CN202521155191.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2035-06-06
AI Technical Summary
Existing screening devices for fermented bean curd production raw materials cannot flexibly replace the screening screens, have a narrow range of applications, are inconvenient to maintain, and are difficult to clean when the screens are clogged.
A novel raw material screening device for fermented bean curd production was designed, comprising a mounting base plate, a screening box, a vibrating mounting frame, and a screening frame. A servo motor drives the rotating shaft to vibrate the screening frame via an eccentric wheel, enabling the replacement and easy disassembly of filters with different mesh sizes. A material dispersion box is included to prevent clumping of materials from affecting the screening process.
It enables flexible replacement of screening screens according to the type of raw materials, expands the applicability of the device, and facilitates the disassembly and cleaning of the screens, thereby improving the practicality and screening efficiency of the equipment.
Smart Images

Figure CN224237494U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soybean product processing technology, specifically to a novel raw material screening device for fermented bean curd production. Background Technology
[0002] Fermented bean curd, also known as stinky tofu, fermented bean curd, or moldy tofu, is a condiment and side dish made from soybeans through processing, grinding, shaping, culturing, and fermentation. It is a traditional Chinese folk delicacy. The raw materials for fermented bean curd include soybeans and auxiliary materials. During the production process, it is necessary to remove impurities and grade the raw materials to ensure the quality of the raw materials, thereby improving the quality and fermentation stability of the fermented bean curd. For this purpose, a raw material screening device for fermented bean curd production is required.
[0003] The prior art discloses a soybean screening device with application number CN202021456505.6. This device uses a first, second, and third filter screen installed inside the machine's internal cavity to screen soybean materials. However, because these three filter screens are fixedly installed inside the machine's internal cavity and difficult to disassemble, it can only screen soybean raw materials for fermented bean curd production, and cannot screen other auxiliary materials such as red yeast rice. Its application range is relatively narrow. Furthermore, due to the inconvenience of disassembling the first, second, and third filter screens, it is difficult to clean and maintain the screens when material becomes stuck, thus causing inconvenience for equipment maintenance. Its practicality is relatively limited. To address the shortcomings of this invention, those skilled in the art have proposed a novel screening device for fermented bean curd production raw materials. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a novel screening device for fermented bean curd production raw materials. This device allows users to easily change the screening screen to different mesh sizes depending on the type of fermented bean curd raw material being screened. This not only broadens the device's applicability but also facilitates subsequent disassembly, cleaning, and maintenance of clogged screening screens, making it more convenient and practical, thus solving the problems mentioned in the background technology.
[0006] (II) Technical Solution
[0007] To achieve the aforementioned advantages of allowing users to easily change the screening screen of different mesh sizes according to the type of raw material for fermented bean curd production, thus broadening the applicability of the device and facilitating subsequent disassembly, cleaning, and maintenance of clogged screening screens, making it more convenient and practical, the specific technical solution adopted by this utility model is as follows: A novel screening device for fermented bean curd production raw materials includes a mounting base plate, a screening box, a vibrating mounting frame, and a screening frame. The screening box is fixedly installed on the top surface of the mounting base plate, and several sets of guide grooves are symmetrically opened on the inner wall of the screening box. Several sets of guide sliders are symmetrically welded to the side walls of the vibrating mounting frame, and the guide sliders are embedded in the guide grooves. A guide telescopic rod is installed on the bottom surface of the guide groove, and a vibration spring is fitted and sleeved on the outside of the guide telescopic rod. The guide telescopic rod is movable. The end is fixedly connected to the bottom surface of the guide slider. The inner wall of the vibration mounting frame is symmetrically provided with several sets of mounting grooves. The two side walls of the screening frame are symmetrically welded with mounting slide plates, and the mounting slide plates are inserted into the mounting grooves. The screening frame is fixedly installed with a screening filter screen. The screening frame is symmetrically fixedly installed with fixing blocks, and the fixing blocks are fixedly installed with mounting sleeves. The mounting sleeves are fitted with pull rods. One end of the pull rod is fixedly installed with a fixing pin, and a return spring is connected between the fixing pin and the fixing block. The inner wall of the vibration mounting frame is symmetrically provided with several sets of fixing holes. The top of the screening box cavity is installed with a rotating shaft, and eccentric wheels are symmetrically fixedly installed on the rotating shaft. One side wall of the screening box is fixedly installed with a servo motor, and the output end of the servo motor is fixedly connected to one end of the rotating shaft.
[0008] Furthermore, a material dispersing box is fixedly installed on the top surface of the inner cavity of the screening box. Several mounting columns are evenly fixedly installed on the rotating shaft in the inner cavity of the material dispersing box, and several dispersing rods are evenly welded on the side walls of the mounting columns. A feeding hopper is fixedly installed in the center of the top surface of the screening box, and the bottom of the inner cavity of the feeding hopper is connected to the inner cavity of the material dispersing box.
[0009] Furthermore, a discharge port is provided on one side of the screening frame, and a discharge bucket is welded and installed at one end of the discharge port.
[0010] Furthermore, a debris collection box is placed on the top surface of the mounting base plate.
[0011] Furthermore, a control panel is fixedly installed on the side wall of the screening box, and the control panel is electrically connected to the servo motor.
[0012] Furthermore, the cross-sectional shape of the vibration mounting frame is U-shaped.
[0013] Furthermore, the cross-sectional shape of the mounting groove and the mounting slide plate is T-shaped.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a novel raw material screening device for fermented bean curd production, which has the following beneficial effects:
[0016] (1) This utility model is equipped with an installation base plate, a screening box, a vibrating installation frame, and a screening frame. Before use, the user can select a screening frame with different mesh sizes according to the type of raw material to be screened for fermented bean curd. For example, when screening soybeans, select a few sets of screening screens with smaller mesh sizes and larger apertures. When screening auxiliary materials such as red yeast rice, select a few sets of screening screens with larger mesh sizes and smaller apertures. After selecting the screening frame with the corresponding screening screen, insert the installation slide into the installation groove. Fixing blocks are symmetrically fixed on the screening frame, and installation sleeves are fixed on the fixing blocks. A pull rod is sleeved inside the installation sleeve. A fixing pin is fixedly installed at one end of the pull rod, and a return spring is installed between the fixing pin and the fixing block. Several sets of fixing holes are symmetrically opened on the inner wall of the vibrating installation frame. When the screening frame is installed in place, the fixing pin is released by the return spring. The screen is inserted into the fixing hole under force, thus fixing the screen frame. It can be disassembled by reversing the operation. During use, the worker can start the servo motor through the control panel to drive the rotating shaft to rotate. The rotating shaft drives the eccentric wheel to rotate, which continuously strikes the vibrating installation frame. This causes the vibrating installation frame to drive several screen frames to vibrate back and forth along the guide slide, thereby achieving the vibration screening of raw materials for fermented bean curd. The material after screening through the screen can be discharged through the discharge port and the discharge hopper. The worker collects it through the corresponding collection bag. The screened broken and shriveled material falls into the broken material collection box for collection. This new type of fermented bean curd raw material screening device makes it easy for users to change the screen with different mesh sizes according to the type of fermented bean curd raw material being screened. This not only makes the device more applicable, but also facilitates the subsequent disassembly, cleaning and maintenance of the clogged screen, making it more convenient to use and more practical.
[0017] (2) This utility model is equipped with a rotating shaft and a material dispersing box. The material dispersing box is fixedly installed on the top surface of the inner cavity of the screening box. The rotating shaft is located in the inner cavity of the material dispersing box and several mounting columns are evenly fixedly installed. Several dispersing rods are evenly welded on the side walls of the mounting columns. When the raw materials for making fermented bean curd are introduced into the inner cavity of the screening box through the feeding hopper, they will first enter the inner cavity of the material dispersing box. At this time, the rotating shaft can drive the mounting columns and dispersing rods to rotate, so as to disperse and evenly distribute the lumpy materials in the raw materials for making fermented bean curd, so as to prevent large lumps of lumps from affecting the screening and sieving quality of the materials. It is more practical. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.
[0019] Figure 1 This is a schematic diagram of the structure of a novel raw material screening device for making fermented bean curd according to an embodiment of the present utility model;
[0020] Figure 2 This is a side sectional view of the screening frame of a novel fermented bean curd raw material screening device according to an embodiment of the present utility model;
[0021] Figure 3 This is a side sectional view of the material dispersing box of a novel fermented bean curd raw material screening device according to an embodiment of the present utility model.
[0022] Figure 4 According to the embodiments of this utility model Figure 1 Enlarged view of point A;
[0023] Figure 5 According to the embodiments of this utility model Figure 1 Enlarged view of point B;
[0024] Figure 6 This is a perspective view of the vibration mounting frame of a novel raw material screening device for fermented bean curd production according to an embodiment of the present utility model.
[0025] In the picture:
[0026] 1. Screening box; 2. Vibration mounting frame; 3. Servo motor; 4. Material dispersing box; 5. Rotating shaft; 6. Feed hopper; 7. Mounting column; 8. Dispersing rod; 9. Eccentric wheel; 10. Guide chute; 11. Mounting slide plate; 12. Guide slider; 13. Screening frame; 14. Screening screen; 15. Crushed material collection box; 16. Mounting base plate; 17. Discharge port; 18. Outlet hopper; 19. Fixing block; 20. Pull rod; 21. Vibration spring; 22. Guide telescopic rod; 23. Mounting sleeve; 24. Fixing pin; 25. Fixing hole; 26. Return spring; 27. Mounting chute. Detailed Implementation
[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0028] According to an embodiment of this utility model, a novel raw material screening device for fermented bean curd production is provided.
[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-6 As shown, a novel raw material screening device for fermented bean curd production according to an embodiment of this utility model includes a mounting base plate 16, a screening box 1, a vibrating mounting frame 2, and a screening frame 13. The screening box 1 is fixedly mounted on the top surface of the mounting base plate 16, and several sets of guide grooves 10 are symmetrically formed on the inner wall of the screening box 1. Several sets of guide sliders 12 are symmetrically welded to the side walls of the vibrating mounting box, and the guide sliders 12 are embedded in the guide grooves 10. A guide telescopic rod 22 is installed on the bottom surface of the guide groove 10, and a vibration spring 21 is fitted onto the outer side of the guide telescopic rod 22. The movable end of the guide telescopic rod 22 is fixedly connected to the bottom surface of the guide slider 12. Several sets of mounting grooves 27 are symmetrically formed on the inner wall of the vibrating mounting frame 2. Mounting slide plates 11 are symmetrically welded to the side walls of the screening frame 13, and the mounting slide plates 11 are inserted into the mounting grooves 27. A screening filter is fixedly installed on the inner side of the screening frame 13. 14. A fixing block 19 is symmetrically fixedly installed on the screening frame 13, and a mounting sleeve 23 is fixedly installed on the fixing block 19. A pull rod 20 is sleeved inside the mounting sleeve 23. A fixing pin 24 is fixedly installed at one end of the pull rod 20, and a return spring 26 is installed between the fixing pin 24 and the fixing block 19. Several sets of fixing holes 25 are symmetrically opened on the inner wall of the vibration mounting frame 2. A rotating shaft 5 is installed on the top of the inner cavity of the screening box 1, and an eccentric wheel 9 is symmetrically fixedly installed on the rotating shaft 5. A servo motor 3 is fixedly installed on one side wall of the screening box 1, and the output end of the servo motor 3 is connected and fixedly connected to one end of the rotating shaft 5. This makes it convenient for users to change the screening filter 14 of different mesh sizes according to the type of raw material for fermented bean curd being screened. This not only makes the device more applicable, but also facilitates the subsequent disassembly, cleaning and maintenance of the clogged screening filter 14, making it more convenient to use and more practical.
[0030] In one embodiment, a material dispersing box 4 is fixedly installed on the top surface of the inner cavity of the screening box 1. A rotating shaft 5 is located in the inner cavity of the material dispersing box 4 and several mounting columns 7 are evenly fixedly installed. Several dispersing rods 8 are evenly welded to the side walls of the mounting columns 7. A feeding hopper 6 is fixedly installed in the center of the top surface of the screening box 1, and the bottom of the inner cavity of the feeding hopper 6 is connected to the inner cavity of the material dispersing box 4. This can achieve the dispersing and uniformization of lumpy materials in the raw materials for making fermented bean curd, so as to prevent large lumps of lumpy materials from affecting the screening and sieving quality of the materials, and thus enhances its practicality.
[0031] In one embodiment, a discharge port 17 is provided on one side of the screening frame 13, and a discharge bucket 18 is welded to one end of the discharge port 17, which serves to allow the material after being screened by the screening filter 14 to be discharged through the discharge port 17 and the discharge bucket 18.
[0032] In one embodiment, a scrap collection box 15 is placed on the top surface of the mounting base plate 16, which serves to collect the screened scraps and shriveled materials.
[0033] In one embodiment, a control panel is fixedly installed on the side wall of the screening box 1, and the control panel is electrically connected to the servo motor 3. The control circuit of the control panel can be implemented by simple programming by those skilled in the art, which is common knowledge in the art. It is only used and not modified, so the control method and circuit connection will not be described in detail.
[0034] In one embodiment, the cross-sectional shape of the vibration mounting frame 2 is U-shaped.
[0035] In one embodiment, the mounting groove 27 and the mounting slide plate 11 have a T-shaped cross-section.
[0036] Working Principle: This utility model includes a mounting base plate 16, a screening box 1, a vibrating mounting frame 2, and a screening frame 13. The screening box 1 is fixedly mounted on the top surface of the mounting base plate 16, and the inner wall of the screening box 1 has several sets of guide grooves 10 symmetrically formed. Several sets of guide sliders 12 are symmetrically welded to the side walls of the vibrating mounting frame 2, and the guide sliders 12 are embedded in the guide grooves 10. A guide telescopic rod 22 is installed on the bottom surface of the guide grooves 10, and a vibration spring 21 is fitted and sleeved on the outer side of the guide telescopic rod 22. The movable end of the guide telescopic rod 22 is fixedly connected to the bottom surface of the guide slider 12. Several sets of mounting grooves 27 are symmetrically formed on the inner wall of the vibrating mounting frame 2, and the side walls of the screening frame 13... A symmetrically welded mounting plate 11 is provided. A screening filter 14 is fixedly installed within the screening frame 13, and a discharge port 17 is provided on one side of the screening frame 13. A discharge hopper 18 is welded to one end of the discharge port 17. Before use, the user can select the screening frame 13 with different mesh sizes of screening filters 14 according to the type of raw material to be screened for fermented bean curd production. For example, when screening soybeans, select several sets of screening filters 14 with smaller mesh sizes and larger pore sizes; when screening auxiliary materials such as red yeast rice, select several sets of screening filters 14 with larger mesh sizes and smaller pore sizes. After selecting the screening frame 13 with the corresponding screening filters 14, insert the mounting plate 11 into the mounting groove 27. Symmetrically fixed mounting plates are then installed on the screening frame 13. A fixing block 19 is provided, and a mounting sleeve 23 is fixedly installed on the fixing block 19. A pull rod 20 is sleeved inside the mounting sleeve 23. A fixing pin 24 is fixedly installed at one end of the pull rod 20, and a return spring 26 is installed between the fixing pin 24 and the fixing block 19. The inner wall of the vibration mounting frame 2 is symmetrically provided with several sets of fixing holes 25. When the screening frame 13 is installed in place, the fixing pin 24 is inserted into the fixing hole 25 under the elastic force of the return spring 26, thereby fixing the screening frame 13. It can be disassembled by reversing the operation. On the other hand, a rotating shaft 5 is installed on the top of the inner cavity of the screening box 1, and eccentric wheels 9 are symmetrically fixedly installed on the rotating shaft 5. A servo motor 3 is fixedly installed on the side wall, and the output end of the servo motor 3 is connected and fixed to one end of the rotating shaft 5. Therefore, when the raw materials for making fermented bean curd fall into the screening frame 13 through the feed hopper 6, the worker can start the servo motor 3 through the control panel to drive the rotating shaft 5 to rotate. The rotating shaft 5 drives the eccentric wheel 9 to rotate, which can continuously strike the vibrating mounting frame 2. This causes the vibrating mounting frame 2 to drive several screening frames 13 to vibrate back and forth along the guide chute 10, thereby realizing the vibration screening of the raw materials for making fermented bean curd. The material after being screened by the screening filter 14 can be discharged through the discharge port 17 and the discharge hopper 18. The worker collects it through the corresponding collection bag, while the screened broken and shriveled materials fall into the broken material collection box 15 for collection.This novel fermented bean curd raw material screening device allows users to easily change the screening screen 14 to different mesh sizes according to the type of fermented bean curd raw material being screened. This not only broadens the device's applicability but also facilitates subsequent disassembly, cleaning, and maintenance of clogged screening screens 14, making it more convenient and practical. Furthermore, this invention includes a rotating shaft 5 and a material dispersing box 4. The material dispersing box 4 is fixedly installed on the top surface of the inner cavity of the screening box 1. The rotating shaft 5 is located within the inner cavity of the material dispersing box 4, where several mounting columns 7 are evenly fixedly installed. Several dispersing rods 8 are evenly welded to the side walls of the mounting columns 7. When the fermented bean curd raw material is introduced into the inner cavity of the screening box 1 through the feed hopper 6, it first enters the inner cavity of the material dispersing box 4. At this time, the rotating shaft 5 drives the mounting columns 7 and dispersing rods 8 to rotate, thereby dispersing and uniformly dispersing any lumps in the fermented bean curd raw material. This prevents large lumps from affecting the screening quality, further enhancing its practicality.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel raw material screening device for fermented bean curd production, comprising a mounting base plate (16), a screening box (1), a vibrating mounting frame (2), and a screening frame (13), characterized in that, The top surface of the mounting base plate (16) is fixedly mounted with a screening box (1), and the inner wall of the screening box (1) is symmetrically provided with several sets of guide grooves (10). The two side walls of the vibration mounting frame (2) are symmetrically welded with several sets of guide sliders (12), and the guide sliders (12) are embedded in the guide grooves (10). The bottom surface of the guide grooves (10) is equipped with guide telescopic rods (22), and the outer side of the guide telescopic rods (22) is fitted with a vibration spring (21). The movable end of the guide telescopic rods (22) is fixedly connected to the bottom surface of the guide sliders (12). The inner wall of the vibration mounting frame (2) is symmetrically provided with several sets of mounting grooves (27). The two side walls of the screening frame (13) are symmetrically welded with mounting slide plates (11), and the mounting slide plates (11) are inserted into the mounting grooves (27). A screening filter (14) is fixedly installed inside the screening frame (13). A fixing block (19) is symmetrically fixedly installed on the screening frame (13), and a mounting sleeve (23) is fixedly installed on the fixing block (19). A pull rod (20) is sleeved inside the mounting sleeve (23). A fixing pin (24) is fixedly installed at one end of the pull rod (20), and a return spring (26) is connected between the fixing pin (24) and the fixing block (19). Several sets of fixing holes (25) are symmetrically opened on the inner wall of the vibration mounting frame (2). A rotating shaft (5) is installed on the top of the inner cavity of the screening box (1), and an eccentric wheel (9) is symmetrically fixedly installed on the rotating shaft (5). A servo motor (3) is fixedly installed on one side wall of the screening box (1), and the output end of the servo motor (3) is connected and fixedly connected to one end of the rotating shaft (5).
2. The novel raw material screening device for fermented bean curd production according to claim 1, characterized in that, A material dispersing box (4) is fixedly installed on the top surface of the inner cavity of the screening box (1). A number of mounting columns (7) are evenly fixedly installed on the rotating shaft (5) located in the inner cavity of the material dispersing box (4). A number of dispersing rods (8) are evenly welded on the side wall of the mounting columns (7). A feeding hopper (6) is fixedly installed in the center of the top surface of the screening box (1). The bottom of the inner cavity of the feeding hopper (6) is connected to the inner cavity of the material dispersing box (4).
3. The novel raw material screening device for fermented bean curd production according to claim 1, characterized in that, The screening frame (13) has a discharge port (17) on one side, and a discharge bucket (18) is welded to one end of the discharge port (17).
4. The novel raw material screening device for fermented bean curd production according to claim 1, characterized in that, A debris collection box (15) is placed on the top surface of the mounting base plate (16).
5. The novel raw material screening device for fermented bean curd production according to claim 1, characterized in that, The control panel is fixedly installed on the side wall of the screening box (1), and the control panel is electrically connected to the servo motor (3).
6. The novel raw material screening device for fermented bean curd production according to claim 1, characterized in that, The cross-sectional shape of the vibration mounting frame (2) is concave.
7. The novel raw material screening device for fermented bean curd production according to claim 1, characterized in that, The cross-sectional shape of the mounting groove (27) and the mounting slide plate (11) is T-shaped.