Efficient screening device for yeast powder

Abstract

The utility model relates to a kind of yeast powder high-efficiency screening devices, it includes sieve barrel, screen assembly, ultrasonic vibration mechanism and locking assembly, screen assembly contains sieve frame and screen, sieve frame end rotating block is cooperated with the rotating shaft of sieve barrel outer wall fixed seat, the arc-shaped groove of sieve barrel side wall is accurately adapted with sieve frame, realize work and screen changeover, and screen one side is fixed in sieve frame connecting plate by bolt, other side is inserted into sieve barrel inner wall arc-shaped plate insertion slot, double limit vibration is stable, in ultrasonic vibration mechanism, generator exports high-frequency electric signal, change mechanical vibration by sieve barrel outer wall transducer, pass through the longitudinal guide rod of connecting block transmission to horizontal net rack, screen bottom surface and net rack are pasted during work, vibration evenly covers screen, break yeast powder cluster and promote its radial diffusion, sieve barrel outer wall is equipped with discharge barrel, bottom wall and screen are horizontally aligned, arc-shaped plate corresponding place opens discharge port, and the diffusion trajectory of coarse particle is prevented from being accumulated.

Description

Technical Field

[0001] This utility model relates to the field of yeast powder processing, and in particular to a high-efficiency yeast powder screening device. Background Technology

[0002] In the industrial production process of yeast powder, the screening process is a key link to ensure product quality and subsequent processing efficiency. With the development of technology, ultrasonic rotary vibrating screens have gradually become the mainstream equipment in the field of yeast powder screening due to their unique screening advantages.

[0003] However, in the continuous production process of yeast powder, the screen is a core vulnerable component that needs to be replaced regularly according to the production batch, changes in material characteristics, or screen wear. The existing structural design of the ultrasonic vibrating screen makes screen replacement significantly inconvenient. Since the transducer is directly fixed to the screen or screen frame, the connecting wires and fixing bolts of the transducer must be disassembled before replacing the screen. After the screen is replaced, the position and angle of the transducer must be reinstalled and calibrated. This process is not only cumbersome, but also places high demands on the technical proficiency of the operators. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-efficiency yeast powder screening device.

[0005] The high-efficiency yeast powder sieving device provided by this utility model adopts the following technical solution:

[0006] A high-efficiency yeast powder sieving device includes a sieve barrel, a sieve assembly, an ultrasonic vibration mechanism, and a locking assembly. The sieve assembly is rotatably connected to the sieve barrel and includes a sieve frame and a sieve mesh. A connecting plate is provided at the bottom of the sieve frame, and the sieve mesh is placed on the connecting plate of the sieve frame. The sieve frame is arc-shaped, and an arc-shaped groove corresponding to the size of the sieve frame is opened on the side wall of the sieve barrel. The sieve assembly passes through the arc-shaped groove when rotating. The ultrasonic vibration mechanism includes an ultrasonic generator, a transducer, a guide rod, and a mesh frame. The transducer is fixed to the outer wall of the sieve barrel, and the ultrasonic generator is connected to the guide rod through the transducer. The guide rod is located below the mesh frame, and a connecting block is provided on the guide rod. The guide rod is connected to the mesh frame through the connecting block. The mesh frame is set inside the sieve barrel through a connecting rod. When the sieve mesh passes through the arc-shaped groove and completely enters the sieve barrel, the sieve frame is embedded in the arc-shaped groove and fits against the sieve barrel, and the bottom of the sieve mesh abuts against the mesh frame.

[0007] Optionally, the connecting plate is provided with at least two threaded holes, and the edge of the screen is provided with a corresponding number of through holes. Bolts are used to fix the screen to the connecting plate. The inner wall of the screen barrel is provided with arc-shaped plates at intervals, and the arc-shaped plates at intervals form an insertion groove. When the screen assembly is rotated, the screen is inserted into the insertion groove when the screen is fully inserted into the screen barrel.

[0008] Optionally, the ends of the spaced-apart arc-shaped plates are provided with rounded corners.

[0009] Optionally, the outer wall of the screen barrel is provided with spaced fixed seats, a rotating shaft is provided between the fixed seats, and a rotating block is connected to the end of the screen frame, the rotating block being rotatably engaged with the rotating shaft.

[0010] Optionally, the outer wall of the screen barrel is provided with a discharge barrel, the horizontal position of the bottom wall of the discharge barrel corresponds to the horizontal position of the screen, and the upper arc plate is provided with a discharge port at the discharge barrel.

[0011] Optionally, the inner angle of the screen frame is greater than the inner angle of the arc plate.

[0012] In summary, this utility model has at least one of the following beneficial technical effects:

[0013] 1. When the screen assembly is rotated to the state of being fully inserted into the screen barrel, the arc-shaped screen frame is precisely embedded into the corresponding arc-shaped groove and forms a sealed fit with the side wall of the screen barrel. At the same time, the bottom surface of the screen is in close contact with the upper surface of the screen frame, ensuring that the ultrasonic vibration energy is evenly transmitted to the entire screen area through the screen frame. With this design, the screen assembly and the screen barrel are connected by a rotating shaft. Only by loosening the locking component can the screen assembly be rotated out of the arc-shaped groove around the shaft. There is no need to disassemble the transducer. The whole process does not require complicated tools and can be completed by a single person, which greatly improves the efficiency of later replacement and maintenance.

[0014] 2. The inner angle of the screen frame is greater than that of the arc plate. This design allows for a larger contact area when the screen is placed on the connecting plate of the screen frame, making it easier to rotate in or out. The ends of the spaced arc plates are rounded, which prevents material from getting stuck in right-angle gaps. When the yeast powder flows towards the edge of the screen under the action of gyration and gravity during the screening process, it will not form a right-angle dead corner due to the small inner angle of the screen frame. Instead, it will smoothly slide down along the slightly flared arc surface into the effective screening area of ​​the screen, greatly reducing the retention of material at the corners of the screen frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a high-efficiency yeast powder screening device.

[0016] Figure 2 This is a schematic diagram of the other side of a high-efficiency yeast powder screening device.

[0017] Figure 3 This is a schematic diagram of the screen assembly of a high-efficiency yeast powder screening device rotating out.

[0018] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0019] Figure 5 This is a schematic diagram of an ultrasonic vibration mechanism.

[0020] Explanation of reference numerals in the attached drawings: 1. Screen barrel; 11. Arc-shaped groove; 12. Arc-shaped plate; 121. Discharge port; 13. Insertion groove; 14. Rounded corner; 15. Fixed base; 16. Rotating shaft; 2. Screen assembly; 21. Screen frame; 22. Screen; 23. Connecting plate; 24. Threaded hole; 25. Through hole; 26. Rotating block; 3. Ultrasonic vibration mechanism; 31. Transducer; 32. Guide rod; 33. Screen frame; 34. Connecting block; 35. Connecting rod; 4. Locking assembly; 5. Discharge barrel. 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] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] This utility model discloses a high-efficiency yeast powder sieving device. (Refer to...) Figure 1-5 A high-efficiency yeast powder sieving device includes a sieve barrel 1, a sieve assembly 2, an ultrasonic vibration mechanism 3, and a locking assembly 4. The sieve assembly 2 is rotatably connected to the sieve barrel 1. The sieve assembly 2 includes a sieve frame 21 and a sieve 22. A rotating block 26 is connected to the end of the sieve frame 21. Fixed seats 15 are provided at intervals on the outer wall of the sieve barrel 1. A rotating shaft 16 is provided between the fixed seats 15. The rotating block 26 is rotatably engaged with the rotating shaft 16. The sieve assembly 2 is rotatably connected to the side wall of the sieve barrel 1 through the rotating shaft 16, and can complete a 180° rotation around the shaft, which facilitates the quick replacement and maintenance of the sieve 22.

[0025] The bottom of the screen frame 21 is integrally formed with a connecting plate 23 as the supporting base for the screen mesh 22. The screen mesh 22 is placed on the connecting plate 23 of the screen frame 21. The screen frame 21 is designed as an arc-shaped structure that perfectly matches the curvature of the inner wall of the screen barrel 1. Correspondingly, the side wall of the screen barrel 1 is provided with an arc-shaped groove 11 that precisely matches the size of the screen frame 21. When the screen mesh assembly 2 rotates, it can switch between working inside the screen barrel 1 and changing the screen outside the screen barrel 1 through the arc-shaped groove 11. The fitting error between the arc-shaped groove 11 and the screen frame 21 is controlled within 0.5mm to ensure sealing performance.

[0026] The ultrasonic vibration mechanism 3 includes an ultrasonic generator (omitted in the figure), a transducer 31, a guide rod 32, and a mesh frame 33. The transducer 31 is securely installed on the outer wall of the screen barrel 1 via a flange structure. The high-frequency electrical signal output by the ultrasonic generator is converted into mechanical vibration by the transducer 31 and then efficiently transmitted to the mesh frame 33 through the horizontally extending metal guide rod 32 and the longitudinally arranged connecting block 34 on the metal guide rod 32. When the screen assembly 2 rotates to the state of being fully inserted into the screen barrel 1, the arc-shaped screen frame 21 is precisely embedded in the corresponding arc-shaped groove 11 and forms a sealed fit with the side wall of the screen barrel 1. At the same time, the bottom surface of the screen 22 is in close contact with the upper surface of the mesh frame 33, ensuring that the ultrasonic vibration energy is evenly transmitted to the entire area of ​​the screen 22 through the mesh frame 33. With this design, the screen assembly 2 and the screen barrel 1 are connected by a rotating shaft 16. Only by loosening the locking component 4 can the screen assembly 2 be rotated out of the arc-shaped groove 11 around the shaft without disassembling the transducer 31. The whole process can be completed by a single person without the need for complicated tools, which greatly improves the efficiency of later replacement and maintenance.

[0027] The inner angle of the screen frame 21 is greater than that of the arc plate 12. This design allows for a larger contact area when the screen 22 is placed on the connecting plate 23 of the screen frame 21, making it easier to rotate in or out. The ends of the spaced arc plates 12 are provided with rounded corners 14. The rounded corners 14 at the ends of the arc plates 12 prevent material from being trapped in right-angle gaps. During the screening process, when the yeast powder flows towards the edge of the screen 22 under the action of vortex force and gravity, it will not form right-angle dead corners due to the small inner angle of the screen frame 21. Instead, it will smoothly slide down along the slightly flared arc surface to the effective screening area of ​​the screen 22, greatly reducing the retention of material at the corners of the screen frame 21.

[0028] The connecting plate 23 is provided with at least two threaded holes 24, and the screen 22 is provided with a corresponding number of through holes 25 at its edge. The screen 22 is fixed to the connecting plate 23 with bolts. The inner wall of the screen barrel 1 is provided with arc-shaped plates 12 at intervals, and the arc-shaped plates 12 at intervals form an insertion groove 13. When the screen assembly 2 is rotated, the screen 22 is inserted into the insertion groove 13 when the screen 22 is fully inserted into the screen barrel 1. With this design, one side of the screen 22 is fixed to the connecting plate 23 and the other side is inserted into the insertion groove 13 to form a limit, ensuring the stability and positional accuracy of the screen 22 during vibration.

[0029] The outer wall of the sieve barrel 1 is provided with a discharge barrel 5. The horizontal position of the bottom wall of the discharge barrel 5 corresponds to the horizontal position of the screen 22. The upper arc plate 12 is located at the discharge barrel 5 and has a discharge port 121. Under the synergistic action of the ultrasonic generator and the transducer 31, the screen 22 pushes the yeast powder to diffuse evenly in the radial direction along the screen surface. If the discharge port 121 is lower or higher than the horizontal position of the screen 22, the coarse particles that diffuse radially may not be able to enter the discharge port 121 smoothly due to the height difference. When it is lower than the screen 22, the coarse particles need to overcome gravity to fall into the discharge port 121, which easily forms an accumulation at the edge of the screen 22. When the discharge port 121 is horizontal with the screen 22, it is exactly matched with the diffusion trajectory of the yeast powder.

[0030] The principle of this utility model is as follows: The screen frame 21 of the screen assembly 2 rotates in cooperation with the rotating shaft 16 of the fixed seat 15 on the outer wall of the screen barrel 1 via the end rotating block 26. The side wall of the screen barrel 1 is provided with an arc-shaped groove 11 that precisely matches the screen frame 21, guiding the rotation path. When in operation, the arc-shaped screen frame 21 is embedded in the arc-shaped groove 11 and sealed. One side of the screen 22 is fixed to the connecting plate 23 of the screen frame 21 by bolts, and the other side is inserted into the insertion groove 13 of the arc-shaped plate 12 on the inner wall of the screen barrel 1. The double limiting ensures the stability of the position during vibration. The screen assembly 2 can be rotated out by tightening component 4 without disassembling the transducer 31, realizing the overall flip-type screen replacement and reducing maintenance difficulty; the ultrasonic generator converts the electrical signal into mechanical vibration under the action of the transducer 31 on the outer wall of the screen barrel 1, and then transmits it to the horizontal screen frame 33 through the longitudinal connecting block 34 of the middle guide rod 32. In the working state, the bottom surface of the screen 22 is in close contact with the screen frame 33. Combined with the double limit, the vibration evenly covers the screen 22, breaks the yeast powder agglomeration and promotes it to diffuse radially along the screen surface, providing energy for screening.

[0031] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A high-efficiency yeast powder sieving device, characterized in that: The system includes a sieve barrel (1), a sieve assembly (2), an ultrasonic vibration mechanism (3), and a locking assembly (4). The sieve assembly (2) is rotatably connected to the sieve barrel (1). The sieve assembly (2) includes a sieve frame (21) and a sieve (22). A connecting plate (23) is provided at the bottom of the sieve frame (21). The sieve (22) is placed on the connecting plate (23) of the sieve frame (21). The sieve frame (21) is arc-shaped. An arc-shaped groove (11) corresponding to the size of the sieve frame (21) is opened on the side wall of the sieve barrel (1). The sieve assembly (2) passes through the arc-shaped groove (11) when rotating. The ultrasonic vibration mechanism (3) includes an ultrasonic generator and a transducer (31). The screen (22) consists of a guide rod (32) and a mesh frame (33). The transducer (31) is fixed to the outer wall of the screen barrel (1). The ultrasonic generator is connected to the guide rod (32) through the transducer (31). The guide rod (32) is located below the mesh frame (33). A connecting block (34) is provided on the guide rod (32). The guide rod (32) is connected to the mesh frame (33) through the connecting block (34). The mesh frame (33) is set inside the screen barrel (1) through a connecting rod (35). When the screen (22) passes through the arc groove (11) and completely enters the screen barrel (1), the screen frame (21) is embedded in the arc groove (11) and fits against the screen barrel (1), and the bottom of the screen (22) abuts against the mesh frame (33).

2. The yeast powder high-efficiency sieving device according to claim 1, characterized in that: The connecting plate (23) is provided with at least two threaded holes (24), and the screen (22) is provided with a corresponding number of through holes (25) at its edge. The screen (22) is fixed to the connecting plate (23) with bolts. The inner wall of the screen barrel (1) is provided with arc-shaped plates (12) spaced apart. The spaced arc-shaped plates (12) form an insertion groove (13). When the screen assembly (2) is rotated, the screen (22) is inserted into the insertion groove (13) when the screen (22) is fully inserted into the screen barrel (1).

3. The yeast powder high-efficiency sieving device according to claim 2, characterized in that: The ends of the spaced-apart arc-shaped plates (12) are provided with rounded corners (14).

4. The yeast powder high-efficiency sieving device according to claim 1, characterized in that: The outer wall of the sieve barrel (1) is provided with spaced fixed seats (15), and a rotating shaft (16) is provided between the fixed seats (15). The end of the sieve frame (21) is connected to a rotating block (26), and the rotating block (26) is rotatably engaged with the rotating shaft (16).

5. The high-efficiency yeast powder sieving device according to claim 2, characterized in that: The outer wall of the screen barrel (1) is provided with a discharge barrel (5). The horizontal position of the bottom wall of the discharge barrel (5) corresponds to the horizontal position of the screen (22). The upper arc plate (12) is provided with a discharge port (121) at the discharge barrel (5).

6. The high-efficiency yeast powder sieving device according to claim 2, characterized in that: The inner angle of the sieve frame (21) is greater than the inner angle of the arc plate (12).

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