Vibrating screen for producing dried beancurd sticks
Patent Information
- Application Number
- CN202520209794.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-11
AI Technical Summary
In current tofu skin production, the soybeans cannot be sorted and collected according to their size during the screening process, resulting in inconsistent quality of soybean products. Furthermore, mechanical vibration can easily damage the products, leading to low work efficiency.
A vibrating screen was designed, comprising a fixed mounting frame, a screening box, a multi-stage filter screen, and a guide plate. The inclined filter screen and guide plate enable the classification and collection of beans, and the auxiliary wheel and return spring enable reciprocating vibration to improve work efficiency.
This method enables the collection of beans by size and shape, avoiding quality discrepancies, improving production efficiency, reducing mechanical damage, and enhancing the overall quality of bean products.
Smart Images

Figure CN223832818U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dried bean curd production technology, specifically to a vibrating screen for producing dried bean curd. Background Technology
[0002] Tofu skin, also known as bean curd sticks, is a traditional Han Chinese bean product and a common food ingredient in Chinese communities. It has a rich bean flavor and a unique texture that other bean products do not have. In the process of making tofu skin, it is necessary to separate the beans and the washing water by screening, so a vibrating screen is required.
[0003] In Chinese patent announcement number CN217247270U, a vibrating screen for processing dried bean curd sticks is disclosed, including an equipment mounting frame, a vibrator, a connecting component, a telescopic silencer rod, a return spring, a sliding component, a screen component, and an automatic screening device. The automatic screening device includes a enclosure, a cover plate, a receiving box, a pull-out tray, a gravity sensor, a pushing cylinder, a pushing rod, and a connecting rod. The vibrator is mounted on the equipment mounting frame, and the connecting component is mounted on the vibrator. This invention solves the problems of simple structure of vibrating screens on the market and the lack of direct collection after screening out beans.
[0004] Compared to the vibrating screens mentioned above, there are also the following drawbacks: during the screening of beans, they are collected uniformly and cannot be classified according to their appearance and size, causing the beans to be concentrated together, which can easily lead to differences in the quality of bean products during production. At the same time, they do not have reciprocating continuous vibration, and mechanical vibration can easily cause damage, resulting in poor work efficiency. Utility Model Content
[0005] The purpose of this utility model is to provide a vibrating screen for producing dried bean curd sticks, which solves the following technical problems: In the process of screening beans, they are collected uniformly and cannot be classified according to their size and appearance. This causes the beans to be concentrated together, which can easily lead to differences in the quality of bean products during production. At the same time, it does not have continuous reciprocating vibration, and mechanical vibration can easily cause damage, resulting in poor work efficiency.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A vibrating screen for producing dried bean curd sticks, with a fixed mounting frame;
[0008] A screening box is fixedly installed on the upper end of the fixed mounting frame. The upper surface of the fixed mounting frame is provided with a rubber anti-slip pad. A first collection frame is provided above the rubber anti-slip pad. A mounting support frame is fixedly installed on the right end of the fixed mounting frame. A second collection frame and a third collection frame are respectively provided on the left side of the mounting support frame from top to bottom.
[0009] The screening box is equipped with two sets of screening frames inside. The inner side of the screening frame is provided with a first filter screen and a second filter screen from top to bottom. A return spring is provided on the outer side of the left end of the screening frame.
[0010] The left end of the screening box is provided with an installation frame. The upper and lower sides of the interior of the installation frame are provided with movable protrusions. The outer side of the movable protrusions is provided with an adjustment belt. The left end of the screening frame is provided with a support rod. The inner side of the left end of the support rod is provided with an auxiliary wheel connected to the movable protrusion.
[0011] As a further embodiment of this utility model: a movable cover plate is provided on the lower front side of the screening box, and a rubber seal is provided on the inner rear side of the movable cover plate. The movable cover plate forms a rotating structure at the front end of the screening box through a hinge chain.
[0012] As a further embodiment of this utility model: the movable cover plate is connected to the screening box by a snap-fit method through a rubber seal, and the upper end of the screening box is provided with a feed inlet.
[0013] As a further embodiment of this utility model: an adjusting bolt is provided at the connection between the mounting frame and the screening box, and both the mounting frame and the screening box are connected to the adjusting bolt by means of threads.
[0014] As a further embodiment of this utility model: the movable protrusion and the adjusting belt are connected by winding, and the movable protrusion forms a rotating structure on the mounting frame through a built-in bearing.
[0015] As a further embodiment of this utility model: both the first filter screen and the second filter screen are inclinedly arranged inside the screening frame, and the mesh count of the first filter screen is smaller than that of the second filter screen.
[0016] As a further embodiment of this utility model: a first guide plate is provided on the lower side of the screening frame and is fixedly connected to the screening box and is inclined, and a second guide plate is provided on the left end of the first guide plate.
[0017] As a further embodiment of this utility model: the auxiliary wheel forms an elastic telescopic structure on the screening box through a reset spring, and the inner surface of the second guide plate rotatably connected to the left end of the auxiliary wheel and the outer surface of the movable protrusion are fitted together in a wrapping manner.
[0018] The beneficial effects of this utility model are:
[0019] 1. Both the first and second filters are inclined inside the screening frame, and the mesh size of the first filter is smaller than that of the second filter. After the beans are vibrated and screened, they will be discharged into the second and third collection frames according to their size through the first guide plate for classified collection. The second guide plate is set at the inner end of the first guide plate, which can guide smaller beans into the first collection frame for collection. Thus, the beans can be classified and collected according to their appearance or size, avoiding them from being concentrated together and causing quality differences in the bean products after production.
[0020] 2. The inner surface of the second guide plate, which is rotatably connected to the left end of the auxiliary wheel, is wrapped and fitted with the outer surface of the movable protrusion. When the motor is turned on and the movable protrusion is rotated, the adjusting belt, which is wound around the movable protrusion, drives the movable protrusion and its corresponding unit to rotate synchronously. This allows the auxiliary wheel to reciprocate under the action of the return spring, causing the screening frame to move laterally and achieve continuous vibration, thus improving work efficiency. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings.
[0022] Figure 1 This is a front view cross-sectional structural diagram of the present invention;
[0023] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0024] Figure 3 This is a side sectional view of the connection between the mounting frame and the movable protrusion of this utility model.
[0025] Figure 4 This is a top view cross-sectional structural diagram of the connection between the movable protrusion and the auxiliary wheel of this utility model.
[0026] In the diagram: 1. Fixed mounting frame; 2. Screening box; 3. Rubber anti-slip mat; 4. First collection frame; 5. Movable cover plate; 6. Rubber seal; 7. Mounting support frame; 8. Second collection frame; 9. Third collection frame; 10. Inlet; 11. Mounting frame; 12. Adjusting bolt; 13. Movable protrusion; 14. Adjusting belt; 15. Screening frame; 16. First filter screen; 17. First guide plate; 18. Second filter screen; 19. Return spring; 20. Support rod; 21. Auxiliary wheel; 22. Second guide plate. Detailed Implementation
[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] Example 1
[0029] Please see Figure 1 , Figure 2 and Figure 3 As shown, this utility model is a vibrating screen for producing dried bean curd sticks. Specifically, it is used to classify and collect vibrating beans to avoid centralized collection, which can easily lead to inconsistent quality in subsequent dried bean curd stick production. It includes a fixed mounting frame 1; a screening box 2 fixedly mounted on the upper end of the fixed mounting frame 1; a rubber anti-slip pad 3 provided on the upper surface of the fixed mounting frame 1; a first collection frame 4 provided above the rubber anti-slip pad 3; a mounting support frame 7 fixedly mounted on the right end of the fixed mounting frame 1; and a second collection frame 8 and a third collection frame 9 respectively provided from top to bottom on the left side of the mounting support frame 7.
[0030] In this embodiment, preferably, an adjusting bolt 12 is provided at the connection between the mounting frame 11 and the screening box 2. Both the mounting frame 11 and the screening box 2 are connected to the adjusting bolt 12 by means of threads, which enables the mounting frame 11 and the screening box 2 to be securely connected and installed, and facilitates disassembly, maintenance or replacement in the future.
[0031] In this embodiment, preferably, the movable protrusion 13 and the adjusting belt 14 are connected by winding. The movable protrusion 13 forms a rotating structure on the mounting frame 11 through the built-in bearing. When the motor is turned on and the movable protrusion 13 is rotated, the winding adjusting belt 14 drives the movable protrusion 13 and its corresponding unit to rotate in the same direction.
[0032] In this embodiment, preferably, the first filter screen 16 and the second filter screen 18 are both inclined inside the screening frame 15, and the mesh number of the first filter screen 16 is smaller than that of the second filter screen 18, so that beans can be classified and vibrated for screening.
[0033] In this embodiment, preferably, a first guide plate 17 is fixedly connected to the screening box 2 and inclined on the lower side of the screening frame 15, and a second guide plate 22 is provided at the left end of the first guide plate 17, which can guide and discharge the screened beans under the action of the first guide plate 17 and the second guide plate 22.
[0034] In summary, when the screening frame 15 vibrates and screens, since both the first filter screen 16 and the second filter screen 18 are inclined inside the screening frame 15, and the mesh size of the first filter screen 16 is smaller than that of the second filter screen 18, the beans can be classified and screened by vibration. At this time, the screened beans will fall into the first guide plate 17 under the action of inclination, and then roll into the second collection frame 8 and the third collection frame 9 for collection. Smaller particles and impurities will enter the first collection frame 4 along the second guide plate 22 for unified collection, which is convenient for subsequent processing. This achieves the effect of classified collection and avoids the problem of inconsistent quality when producing dried bean curd sticks.
[0035] Example 2
[0036] Reference Figure 1 , Figure 3 and Figure 4 The image shows the second embodiment of this utility model, which is capable of reciprocating cyclic motion, improving the effect of vibrating screening. Through continuous vibration, the working efficiency is enhanced. The screening box 2 is equipped with two sets of screening frames 15 inside. The inner side of the screening frame 15 is respectively equipped with a first filter screen 16 and a second filter screen 18 from top to bottom. A return spring 19 is provided on the outer side of the left end of the screening frame 15.
[0037] The left end of the screening box 2 is provided with an installation frame 11. The upper and lower sides of the inside of the installation frame 11 are provided with movable protrusions 13. The outer side of the movable protrusions 13 is provided with an adjustment belt 14. The left end of the screening frame 15 is provided with a support rod 20. The inner side of the left end of the support rod 20 is provided with an auxiliary wheel 21 that is connected to the movable protrusions 13.
[0038] In this embodiment, preferably, a movable cover plate 5 is provided on the lower front side of the screening box 2, and a rubber sealing element 6 is provided on the inner rear side of the movable cover plate 5. The movable cover plate 5 forms a rotating structure at the front end of the screening box 2 through a hinge chain, which allows the first collection frame 4 placed on the upper surface of the rubber anti-slip mat 3 to be picked up when the movable cover plate 5 is opened.
[0039] In this embodiment, preferably, the movable cover plate 5 is connected to the screening box 2 by a snap-fit method through the rubber sealing member 6, and the upper end of the screening box 2 is provided with a feed inlet 10, which can guide the beans to be discharged.
[0040] In this embodiment, preferably, the auxiliary wheel 21 forms an elastic telescopic structure on the screening box 2 through the return spring 19. The inner surface of the second guide plate 22 rotatably connected to the left end of the auxiliary wheel 21 and the outer surface of the movable protrusion 13 are wrapped together, which can make the movable protrusion 13 and the second guide plate 22 fit tightly together, facilitate sliding, and prevent falling off.
[0041] In summary, after the screening frame 15 is installed in place, beans are introduced into the screening box 2 through the feed inlet 10. At this time, the motor is turned on to rotate the movable protrusion 13. Since the movable protrusion 13 and the adjusting belt 14 are connected by winding, the adjusting belt 14 can drive the movable protrusion 13 and its corresponding unit to rotate in the same direction. The auxiliary wheel 21 forms an elastic telescopic structure on the screening box 2 through the return spring 19. The inner surface of the second guide plate 22, which is rotatably connected to the left end of the auxiliary wheel 21, is wrapped and fitted with the outer surface of the movable protrusion 13. This allows the movable protrusion 13 and the second guide plate 22 to fit tightly together, making it easy to slide and preventing it from falling off. This allows the screening frame 15 to reciprocate and vibrate in the screening box 2, improving work efficiency.
[0042] Example 3
[0043] This embodiment is obtained by combining Embodiment 1 and Embodiment 2.
[0044] The above-described operation, which involves classifying, screening, collecting, and reciprocating the bean products, not only improves the production quality of dried bean curd sticks but also increases work efficiency.
[0045] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A vibrating screen for producing dried bean curd sticks, characterized in that, include; Fixed mounting frame (1); A screening box (2) is fixedly installed on the upper end of the fixed mounting frame (1). A rubber anti-slip pad (3) is provided on the upper surface of the fixed mounting frame (1). A first collection frame (4) is provided above the rubber anti-slip pad (3). An installation support frame (7) is fixedly installed on the right end of the fixed mounting frame (1). A second collection frame (8) and a third collection frame (9) are respectively provided on the left side of the installation support frame (7) from top to bottom. The screening box (2) is provided with two sets of screening frames (15). The inner side of the screening frame (15) is provided with a first filter screen (16) and a second filter screen (18) from top to bottom. The outer side of the left end of the screening frame (15) is provided with a return spring (19). The left end of the screening box (2) is provided with an installation frame (11). The upper and lower sides of the installation frame (11) are provided with movable protrusions (13). The outer side of the movable protrusions (13) is provided with an adjustment belt (14). The left end of the screening frame (15) is provided with a support rod (20). The inner side of the left end of the support rod (20) is provided with an auxiliary wheel (21) connected to the movable protrusions (13).
2. The vibrating screen for producing dried bean curd sticks according to claim 1, characterized in that, A movable cover plate (5) is provided on the lower front side of the screening box (2), and a rubber seal (6) is provided on the inner rear side of the movable cover plate (5). The movable cover plate (5) forms a rotating structure at the front end of the screening box (2) through a hinge chain.
3. A vibrating screen for producing dried bean curd sticks according to claim 2, characterized in that, The movable cover plate (5) is connected to the screening box (2) by a snap-fit method through a rubber seal (6), and the upper end of the screening box (2) is provided with a feed inlet (10).
4. A vibrating screen for producing dried bean curd sticks according to claim 1, characterized in that, An adjusting bolt (12) is provided at the connection between the mounting frame (11) and the screening box (2), and the mounting frame (11) and the screening box (2) are connected to the adjusting bolt (12) by means of threads.
5. A vibrating screen for producing dried bean curd sticks according to claim 1, characterized in that, The movable protrusion (13) and the adjusting belt (14) are connected by winding, and the movable protrusion (13) forms a rotating structure on the mounting frame (11) through the built-in bearing.
6. A vibrating screen for producing dried bean curd sticks according to claim 1, characterized in that, The first filter screen (16) and the second filter screen (18) are both inclined inside the screening frame (15), and the mesh number of the first filter screen (16) is smaller than that of the second filter screen (18).
7. A vibrating screen for producing dried bean curd sticks according to claim 1, characterized in that, The lower side of the screening frame (15) is provided with a first guide plate (17) that is fixedly connected to the screening box (2) and is inclined, and the left end of the first guide plate (17) is provided with a second guide plate (22).
8. A vibrating screen for producing dried bean curd sticks according to claim 1, characterized in that, The auxiliary wheel (21) forms an elastic telescopic structure on the screening box (2) through the return spring (19). The inner surface of the second guide plate (22) rotatably connected to the left end of the auxiliary wheel (21) and the outer surface of the movable protrusion (13) are wrapped together.
Citation Information
Patent Citations
Vibrating screen for processing dried beancurd sticks
CN217247270U