A sesame screening device

Abstract

This utility model relates to the technical field of small-scale sesame oil production equipment, specifically a sesame sieving device. It includes a base plate and a frame mounted on the base plate via a vibration damping mechanism. A screening box is fixedly installed on the frame, and a vibration damping motor is fixedly installed on the top of the screening box. The screening box has a feed inlet at the top and a discharge pipe at the bottom. An inclined first screen plate and a second screen plate are fixedly installed inside the screening box. The first screen plate is located above the second screen plate, and the screen aperture size of the first screen plate is larger than that of the second screen plate. A first discharge port is located on the side wall of the screening box at the lowest point of the first screen plate, and a second discharge port is located on the side wall of the screening box at the lowest point of the second screen plate. With this structure, only a new second screen plate needs to be added, without the need for a new power source, to further screen sesame seeds. This results in fewer impurities in the sesame seeds when they enter the air separator, improving the overall screening efficiency and reducing the workload of subsequent processes.

Description

Technical Field

[0001] This utility model relates to the technical field of small-mill sesame oil production equipment, specifically to a sesame sieving device. Background Technology

[0002] Sesame oil made using traditional stone mills is an excellent condiment in daily life, possessing high nutritional value and health benefits. It is produced through stone milling, where the temperature remains around 65 degrees Celsius throughout the grinding process. At this temperature, the main aromatic substances and functional nutrients in the sesame oil are almost entirely preserved, and the oil becomes more fragrant with each grinding. In the production process of sesame oil, the sesame seeds undergo a sieving process before grinding. This sieving removes impurities such as sand and hay from the raw sesame seeds, selecting large and plump sesame seeds. The sifted sesame seeds then undergo washing and roasting before being transported through pipelines to the stone mill for grinding.

[0003] In existing technologies, sesame screening devices typically include a frame with a screening box mounted on it. A vibrating motor is installed on top of the screening box, and a vibration damping mechanism is installed at the bottom of the frame. The vibration damping mechanism lifts the frame, suspending it in the air, allowing the frame and screening box to vibrate under the action of the vibrating motor. In existing screening boxes, there is usually only one inclined screen plate inside. Untreated sesame raw materials enter the screening box through the feed inlet at the top and are screened by the vibrating motor through the screen plate. Larger stones, leaves, and other impurities are trapped at the top of the screen plate and discharged through the impurity outlet, while the sesame seeds fall below the screen plate and are discharged. Since the sesame seeds after screening often still contain some smaller particulate impurities and some shriveled sesame seeds, they need to be further screened by a blower after screening in the screening box. The blower removes shriveled, empty shells, and small particulate impurities, resulting in cleaner, more saturated sesame seeds.

[0004] Because the untreated sesame raw materials are only screened once in the screening box, a lot of impurities are discharged from the screening box along with the sesame, resulting in poor screening effect when the sesame is screened by the blower. In particular, some small stones and other particles with a weight similar to that of sesame are more difficult to remove when passing through the blower. These impurities can only be cleaned through the subsequent washing process, which increases the workload of subsequent processes. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a sesame sieving device to solve the problem that the existing sieving box can only sieve sesame once, resulting in poor sieving effect and thus increasing the workload of subsequent processes.

[0006] This utility model is achieved using the following technical solution: a sesame sieving device, comprising a base plate and a frame mounted on the base plate via a vibration damping mechanism, a sieving box fixedly mounted on the frame, a vibration damping motor fixedly mounted on the top of the sieving box, a feed inlet at the top of the sieving box and a discharge pipe at the bottom, a first sieve plate and a second sieve plate fixedly mounted inside the sieving box, the first sieve plate being located above the second sieve plate, the sieve hole size of the first sieve plate being larger than the sieve hole size of the second sieve plate, a first discharge port being provided on the side wall of the sieving box at the lowest point of the first sieve plate, and a second discharge port being provided on the side wall of the sieving box at the lowest point of the second sieve plate.

[0007] With the above structure, untreated sesame raw materials, after being screened by the first screen plate, enter the space between the first and second screen plates, where they undergo a second screening under the action of the second screen plate. Larger impurities are discharged from the first outlet, while the screened sesame seeds are discharged from the second outlet, and smaller particles are discharged from the feed pipe. This structure allows for further screening of sesame seeds by simply adding a new second screen plate, without requiring a new power source. This results in fewer impurities in the sesame seeds before they enter the air separator, improving overall screening efficiency and reducing the workload of subsequent processes.

[0008] Preferably, the first and second sieve plates are arranged parallel to each other, the first and second discharge ports are located on the same side of the screening box, and the inlet is located at the top of the screening box on the side away from the first discharge port. By arranging the first and second sieve plates in parallel, the sesame seeds are screened more effectively whether through the first or second sieve plate.

[0009] Preferably, the screening box is equipped with guide plates fixedly installed at both the first and second discharge ports to guide the discharged materials, and baffles are fixedly installed on the sides of the guide plates. The guide plates ensure that impurities from the first discharge port and sesame seeds from the second discharge port can move in the direction of the guide plates, thus facilitating the collection of impurities and sesame seeds.

[0010] Preferably, the screening box is equipped with adjustment mechanisms for adjusting the openings of the first and second discharge ports, located above both the first and second discharge ports. These mechanisms allow for adjustment of the openings of the first and second discharge ports, thereby adjusting the residence time of the material within the screening box. Adjustments can be made according to actual conditions to balance screening efficiency and effect. Furthermore, when not in use, the first and second discharge ports can be completely blocked, reducing the environmental impact on the screen plate.

[0011] Preferably, the adjusting mechanism includes a fixed plate fixedly installed on the side wall of the screening box, forming a sliding cavity between the fixed plate and the side wall of the screening box. An adjusting plate is slidably installed in the sliding cavity, and a positioning mechanism for positioning the adjusting plate is also installed on the fixed plate. The arrangement of the fixed plate and the adjusting plate simplifies the structure of the adjusting mechanism and makes operation more convenient.

[0012] Preferably, the fixed plate is provided with a vertically oriented sliding groove, and the adjusting plate is fixedly installed with a positioning block that slides with the sliding groove. The side of the positioning block away from the screening box extends to the outside of the fixed plate, and the portion of the positioning block extending to the outside of the fixed plate is provided with several positioning holes along the vertical direction. The positioning mechanism includes a positioning sleeve fixedly installed on the outside of the fixed plate, and a positioning rod that can be inserted into the positioning hole is slidably installed inside the positioning sleeve. Through the setting of the positioning hole and the positioning rod, when the positioning rod is inserted into the positioning hole, the adjusting plate is locked; when the positioning rod is disengaged from the positioning hole, the adjusting plate is unlocked, making operation more convenient.

[0013] Preferably, a second spring is provided between the end of the positioning rod that is always located inside the positioning sleeve and the positioning sleeve. A limiting hole communicating with the interior of the positioning sleeve is provided on the side of the positioning sleeve away from the fixed plate. A connecting block is fixedly connected to the end of the positioning rod near the second spring. The connecting block slides in cooperation with the limiting hole, and the side of the connecting block away from the positioning rod extends to the outside of the positioning sleeve. The connecting block facilitates the operator's movement of the positioning rod, thereby locking and unlocking the adjustment plate.

[0014] Preferably, the fixing plate is fixedly installed with a limiting block on the side of the positioning block away from the positioning sleeve. The limiting block has a limiting groove on the side closer to the positioning block, and the end of the positioning rod away from the second spring can pass through the positioning hole and be inserted into the limiting groove. By setting the limiting block and the limiting groove, it is possible to prevent the positioning rod from detaching from the positioning sleeve and to further support the positioning rod, making the positioning effect more stable.

[0015] Preferably, a sealing plate for sealing the feed pipe is slidably installed on the feed pipe, and a traction ring for conveniently controlling the sliding of the sealing plate is fixedly installed on the sealing plate. The sealing plate allows control of the opening and closing of the feed pipe, thereby collecting small particle impurities, while the traction ring facilitates the movement of the sealing plate.

[0016] Preferably, the vibration damping mechanism includes several mounting plates fixedly installed on the frame, and a first spring is provided between the bottom of the mounting plate and the base plate. Through the arrangement of the first spring and the mounting plates, the frame and the screening box can vibrate under the action of the vibrating motor, thereby achieving the screening effect.

[0017] In summary, the beneficial effects of this utility model are as follows:

[0018] 1. By adding a second screen plate inside the screening box, the sesame raw material, after being screened by the first screen plate to remove larger impurities, will fall onto the second screen plate. Under the action of the vibrating motor, the sesame seeds after being screened by the first screen plate will undergo further screening on the second screen plate, causing some small particles of impurities to fall below the second screen plate and be discharged from the feed pipe, while the cleaner sesame seeds will be discharged from the second discharge port and enter the air separation process. Since the sesame seeds entering the air separation process contain fewer impurities, the air separation effect will be better, making the sesame seeds cleaner and reducing the workload of subsequent processes.

[0019] 2. The adjustment mechanism allows for adjustments based on actual screening conditions. When screening is poor, the adjustment plate can be lowered to partially block the discharge port, slowing down the discharge speed and allowing the material to remain on the screen plate for a longer period, thus improving screening efficiency. Conversely, when screening is sufficient, the adjustment plate can be raised to increase the discharge speed, further enhancing screening efficiency. Furthermore, when the screening box is not needed, the adjustment plate can be completely blocked at the discharge port, reducing the impact of the environment on the internal screen plate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a sesame sieving device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the screening box;

[0022] Figure 3 A sectional view of the screening box and the frame;

[0023] Figure 4 This is a schematic diagram of the adjustment mechanism;

[0024] Figure 5 for Figure 3 A magnified view of a portion of area "A" in the image;

[0025] Figure 6 for Figure 4 A magnified view of a portion of region "B".

[0026] In the diagram: 1-Frame; 2-Screening box; 3-First support frame; 4-Mounting plate; 5-First spring; 6-Base plate; 7-Vibration motor; 8-Inlet; 9-Adjusting mechanism; 10-First outlet; 11-Baffle; 12-Guide plate; 13-Discharge pipe; 14-Traction ring; 15-Blocking plate; 16-Second outlet; 17-Second support frame; 18-First screen plate; 19-Second screen plate; 20-Fixing plate; 21-Adjusting plate; 22-Handle; 23-Slide groove; 24-Positioning block; 25-Positioning hole; 26-Connecting rod; 27-Positioning sleeve; 28-Limiting block; 29-Sliding cavity; 30-Second spring; 31-Connecting block; 32-Limiting hole; 33-Positioning rod. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0030] like Figure 1 , Figure 2 As shown, this utility model provides a sesame sieving device, including a base plate 6 and a frame 1 mounted on the base plate 6 via a vibration damping mechanism. A screening box 2 is fixedly installed on the frame 1. A vibration motor 7 is fixedly installed on the top of the screening box 2. The top of the screening box 2 is provided with a feed inlet 8 and the bottom is provided with a discharge pipe 13. An inclined first screen plate 18 and a second screen plate 19 are fixedly installed inside the screening box 2. The first screen plate 18 is located above the second screen plate 19. The screen hole size of the first screen plate 18 is larger than the screen hole size of the second screen plate 19. The lowest point of the first screen plate 18 is provided on the side wall of the screening box 2, corresponding to the side wall of the screening box 2. The lowest point of the second screen plate 19 is provided on the side wall of the screening box 2, corresponding to the side wall of the screening box 2, and the second screen plate 19 is provided on the side wall of the screening box 2, corresponding to the side wall of the screening box 2.

[0031] When sesame raw materials enter the screening box 2 through the feed inlet 8, they first fall onto the first screen plate 18. The first screen plate 18 retains larger impurities above it, which are then discharged through the first discharge outlet 10 under vibration. After being screened by the first screen plate 18, the sesame seeds fall onto the second screen plate 19. After being screened by the second screen plate 19, the sesame seeds are discharged through the second discharge outlet 16 under vibration, while small particles of impurities fall below the second screen plate 19. To facilitate the discharge of small particles of impurities in the screening box 2, the bottom of the screening box 2 is designed as an inverted frustum shape. When small particles of impurities fall onto the second screen plate 19, they automatically move towards the bottom of the screening box 2. The feed pipe 13 is located at the very bottom of the screening box 2 and is connected to the screening box 2, thus facilitating the discharge of small particles of impurities below the second screen plate 19.

[0032] like Figure 2 , Figure 3 As shown, the first screen plate 18 and the second screen plate 19 are arranged in parallel, the first discharge port 10 and the second discharge port 16 are located on the same side of the screening box 2, and the feed port 8 is located on the top of the screening box 2 on the side away from the first discharge port 10.

[0033] When sesame seeds enter the screening box 2 through the feed inlet 8, they first fall onto the higher side of the first screen plate 18 and then move towards the lower side under vibration. During this movement, fewer and fewer sesame seeds remain above the first screen plate 18, meaning the most sesame seeds fall from the higher side of the first screen plate 18. When the first screen plate 18 is parallel to the second screen plate 19, more sesame seeds that have passed through the first screen plate 18 fall onto the higher side of the second screen plate 19 and slowly move towards the lower side under vibration. In other words, when the first screen plate 18 and the second screen plate 19 are parallel, most sesame seeds stay on the screens for a longer time, resulting in better screening.

[0034] Furthermore, due to the vibration of the vibrating motor 7, the strength requirements for the screening box 2 are relatively high. To increase the strength of the screening box 2, first support frames 3 are provided on the three sides of the screening box 2, excluding the first discharge port 10 and the second discharge port 16. The first support frames 3 strengthen the connection between the screening box 2 and the frame 1, making the screening box 2 more stable. Since the vibrating motor 7 is directly mounted on the top plate of the screening box 2, meaning that the top plate of the screening box 2 is subjected to the greatest impact, a second support frame 17 is installed on the bottom surface of the top plate of the screening box 2 for support. The second support frame 17 has the same function as the first support frame 3, thereby ensuring the structural stability of the screening box 2 and increasing the service life of the device.

[0035] As a further illustration of this example, in order to control the direction of material movement after it comes out of the first discharge port 10 and the second discharge port 16, guide plates 12 for guiding the discharged material are fixedly installed at the positions of the screening box 2 at the first discharge port 10 and the second discharge port 16, and baffles 11 are fixedly installed on the side of the guide plates 12.

[0036] In actual use, an inclined plate can be installed below the guide plate 12 at the first discharge port 10 to transport the discharged impurities to one side of the device. A storage box or conveyor belt can be placed directly at the bottom of the guide plate 12 at the second discharge port 16, thus separating the discharge of impurities from the discharge of sesame seeds. This is conventional prior art and requires adjustment based on actual usage. Those skilled in the art can easily conceive of adjustment methods, so it will not be elaborated upon here.

[0037] like Figure 1 As shown, the screening box 2 is equipped with adjustment mechanisms 9 for adjusting the opening of the first discharge port 10 and the second discharge port 16, located above the first discharge port 10 and the second discharge port 16.

[0038] By adjusting the setting of the adjustment mechanism 9, the opening of the first discharge port 10 and the second discharge port 16 can be adjusted, thereby adjusting the residence time of the material in the screening box 2. Adjustments can be made according to the actual situation to balance screening efficiency and screening effect. In addition, when it is not needed, the first discharge port 10 and the second discharge port 16 can be completely blocked to reduce the environmental impact on the screen plate.

[0039] like Figure 4 , Figure 5 , Figure 6 As shown, the adjustment mechanism 9 can be any mechanism capable of adjusting the opening of the first discharge port 10 and the second discharge port 16. For example, a cover plate can be hinged at the first discharge port 10 and the second discharge port 16, and the opening of the first discharge port 10 and the second discharge port 16 can be adjusted by swinging the cover plate.

[0040] In this embodiment, the adjustment mechanism 9 mainly includes a fixed plate 20 fixedly installed on the side wall of the screening box 2. A sliding cavity 29 is formed between the fixed plate 20 and the side wall of the screening box 2. An adjustment plate 21 is slidably installed in the sliding cavity 29. A positioning mechanism for positioning the adjustment plate 21 is also installed on the fixed plate 20.

[0041] The fixed plate 20 is provided with a vertically arranged sliding groove 23. The adjusting plate 21 is fixedly installed with a positioning block 24 that slides with the sliding groove 23. The side of the positioning block 24 away from the screening box 2 extends to the outside of the fixed plate 20. The portion of the positioning block 24 extending to the outside of the fixed plate 20 is provided with a plurality of positioning holes 25 in the vertical direction. The positioning mechanism includes a positioning sleeve 27 fixedly installed on the outside of the fixed plate 20. A positioning rod 33 that can be inserted into the positioning hole 25 is slidably installed in the positioning sleeve 27.

[0042] A second spring 30 is provided between the end of the positioning rod 33, which is always located inside the positioning sleeve 27, and the positioning sleeve 27. A limiting hole 32 communicating with the interior of the positioning sleeve 27 is provided on the side of the positioning sleeve 27 away from the fixing plate. A connecting block 31 is fixedly connected to the end of the positioning rod 33 near the second spring 30. The connecting block 31 slides with the limiting hole 32, and the side of the connecting block 31 away from the positioning rod 33 extends to the outside of the positioning sleeve 27. A limiting block 28 is fixedly installed on the fixing plate 20 on the side of the positioning block 24 away from the positioning sleeve 27. A limiting groove is provided on the side of the limiting block 28 near the positioning block 24. The end of the positioning rod 33 away from the second spring 30 can pass through the positioning hole 25 and be inserted into the limiting groove.

[0043] The slide groove 23, positioning block 24, positioning sleeve 27, positioning rod 33, second spring 30, and connecting block 31 are each provided in two sets, and the two sets of positioning sleeves 27 and positioning rods 33 are oriented in the same direction. The two connecting blocks 31 are also connected to a connecting rod 26. The two connecting blocks 31 are located at the two ends of the connecting rod 26, and the two positioning rods 33 can be controlled to move synchronously through the connecting rod 26. A handle 22 is also fixedly installed at the middle position of the bottom of the adjusting plate 21.

[0044] Taking the second discharge port 16 as an example, when it is observed that the sesame seeds coming out of the second discharge port 16 contain many small impurities, that is, when the screening effect of the second sieve plate 19 is poor, the feeding speed of the feed port 8 is reduced. By controlling the connecting rod 26, the two positioning rods 33 are disengaged from the positioning holes 25. Then, the adjusting plate 21 is moved downward by the handle 22. When the adjusting plate 21 is in the appropriate position and the positioning holes 25 are aligned with the positioning rods 33, the connecting rod is released. Under the action of the second spring 30, the positioning rods 33 pass through the positioning holes 25 and are inserted into the limiting grooves of the limiting block 28, thereby achieving fixation. Conversely, when it is found that the sesame seeds coming out of the second discharge port 16 are relatively clean, that is, when the screening effect of the second sieve plate 19 is relatively good, the adjusting plate 21 can be raised to make the discharge speed faster, thereby improving the screening efficiency. In addition, all the above adjustments to the adjusting mechanism 9 need to be made by turning off the vibration motor 7, and then turning it back on after the adjustment is completed.

[0045] As a further illustration of this example, a sealing plate 15 for sealing the feeding pipe 13 is also slidably installed on the feeding pipe 13. A traction ring 14 for conveniently controlling the sliding of the sealing plate 15 is fixedly installed on the sealing plate 15. Specifically, the feeding pipe 13 is a square pipe. The inner walls of three sides of the feeding pipe 13 are provided with mounting grooves, and the other side wall is provided with mounting holes. When the sealing plate 15 needs to be installed, it can be inserted through the mounting holes. When the sealing plate 15 needs to be removed, it can be pulled out by the traction ring 14.

[0046] The significance of the sealing plate 15 is that since the content of small particle impurities is often low, the space at the bottom of the second screen plate 19 can be used to store them for a period of time. There is no need for the feed pipe 13 to be constantly open. According to actual needs, the tray can be placed under the feed pipe 13 every once in a while, and then the sealing plate 15 can be opened to discharge the impurities. After discharge, the sealing plate 15 can be reinserted.

[0047] As a further illustration of this example, the vibration damping mechanism includes several mounting plates 4 fixedly installed on the frame 1, and a first spring 5 is provided between the bottom of the mounting plate 4 and the base plate 6. The vibration damping mechanism is a standard feature of vibrating screening devices, and the base plate 6 mentioned above can also be a base frame or other mounting foundation, which will not be elaborated further here.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A sesame sieving device, comprising a base plate (6) and a frame (1) mounted on the base plate (6) via a vibration damping mechanism, wherein a screening box (2) is fixedly mounted on the frame (1), a vibration damping motor (7) is fixedly mounted on the top of the screening box (2), and the screening box (2) is provided with a feed inlet (8) at the top and a discharge pipe (13) at the bottom, characterized in that, The screening box (2) is fixedly installed with an inclined first screen plate (18) and a second screen plate (19). The first screen plate (18) is located above the second screen plate (19). The screen hole size of the first screen plate (18) is larger than that of the second screen plate (19). The lowest point of the first screen plate (18) is provided with a first discharge port (10) on the side wall of the screening box (2), and the lowest point of the second screen plate (19) is provided with a second discharge port (16) on the side wall of the screening box (2).

2. The sesame sieving device according to claim 1, characterized in that, The first screen plate (18) and the second screen plate (19) are arranged in parallel. The first discharge port (10) and the second discharge port (16) are located on the same side of the screening box (2). The feed port (8) is located on the top of the screening box (2) on the side away from the first discharge port (10).

3. The sesame sieving device according to claim 1, characterized in that, The screening box (2) is fixedly installed with guide plates (12) for guiding the discharged materials at the positions of the first discharge port (10) and the second discharge port (16). Baffles (11) are fixedly installed on the side of the guide plates (12).

4. The sesame sieving device according to claim 1, characterized in that, The screening box (2) is equipped with adjustment mechanisms (9) for adjusting the opening of the first discharge port (10) and the second discharge port (16) at the position above the first discharge port (10) and the second discharge port (16).

5. The sesame sieving device according to claim 4, characterized in that, The adjustment mechanism (9) includes a fixed plate (20) fixedly installed on the side wall of the screening box (2), a sliding cavity (29) is formed between the fixed plate (20) and the side wall of the screening box (2), an adjustment plate (21) is slidably installed in the sliding cavity (29), and a positioning mechanism for positioning the adjustment plate (21) is also installed on the fixed plate (20).

6. The sesame sieving device according to claim 5, characterized in that, The fixed plate (20) is provided with a vertically convenient sliding groove (23), and the adjusting plate (21) is fixedly installed with a positioning block (24) that slides with the sliding groove (23). The side of the positioning block (24) away from the screening box (2) extends to the outside of the fixed plate (20), and the part of the positioning block (24) extending to the outside of the fixed plate (20) is provided with a plurality of positioning holes (25) in the vertical direction. The positioning mechanism includes a positioning sleeve (27) fixedly installed on the outside of the fixed plate (20), and a positioning rod (33) that can be inserted into the positioning hole (25) is slidably installed in the positioning sleeve (27).

7. The sesame sieving device according to claim 6, characterized in that, The positioning rod (33) is always located inside the positioning sleeve (27). A second spring (30) is provided between the end of the positioning rod (33) and the positioning sleeve (27). A limiting hole (32) communicating with the inside of the positioning sleeve (27) is provided on the side of the positioning sleeve (27) away from the fixing plate. A connecting block (31) is fixedly connected to the end of the positioning rod (33) near the second spring (30). The connecting block (31) slides with the limiting hole (32). The side of the connecting block (31) away from the positioning rod (33) extends to the outside of the positioning sleeve (27).

8. The sesame sieving device according to claim 7, characterized in that, The fixing plate (20) is fixedly installed with a limiting block (28) on the side of the positioning block (24) away from the positioning sleeve (27). The limiting block (28) is provided with a limiting groove on the side of the positioning block (24) close to the positioning block (24). The end of the positioning rod (33) away from the second spring (30) can pass through the positioning hole (25) and be inserted into the limiting groove.

9. The sesame sieving device according to claim 1, characterized in that, A sealing plate (15) for sealing the feeding pipe (13) is also slidably installed on the feeding pipe (13), and a traction ring (14) for convenient control of the sliding of the sealing plate (15) is fixedly installed on the sealing plate (15).

10. The sesame sieving device according to claim 1, characterized in that, The vibration damping mechanism includes several mounting plates (4) fixedly installed on the frame (1), and a first spring (5) is provided between the bottom of the mounting plate (4) and the base plate (6).

Images