Rice dumpling raw material screening device
By designing the material spreading and screening components, the uniform spreading and zoned screening of zongzi raw materials are achieved, solving the problems of sieve clogging and raw material damage in traditional equipment, and improving screening efficiency and yield.
Patent Information
- Application Number
- CN202511130276.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-13
- Publication Date
- 2025-10-31
AI Technical Summary
Traditional equipment for screening raw materials for zongzi (sticky rice dumplings) is prone to clogging of the sieve holes, resulting in low screening efficiency. Furthermore, mechanical stirring can damage the raw materials, reducing the yield of high-quality products.
The material spreading and screening components are used. The sliding frame, the material blocking plate and the drive component realize the uniform spreading and zoned screening of raw materials. Combined with the multi-layer shaking frame and the magnetic pusher plate, quantitative and graded screening is achieved, avoiding raw material accumulation and stirring damage.
It improves screening efficiency and yield, ensures uniform distribution of raw materials, avoids sieve clogging and raw material damage, and achieves efficient and accurate raw material grading and screening.
Smart Images
Figure CN120861392A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of food processing technology, and in particular to a device for screening raw materials for zongzi (sticky rice dumplings). Background Technology
[0002] During the production of zongzi (sticky rice dumplings), raw materials (such as glutinous rice, beans, etc.) are often mixed with foreign objects such as gravel, rice husks, and broken particles, which need to be screened to ensure quality.
[0003] When using traditional screening equipment, raw materials tend to accumulate when poured directly onto the screen plate, leading to screen blockage or insufficient utilization. The upper layer of raw materials cannot effectively contact the screen, resulting in low screening efficiency. To solve the screening problem caused by accumulation, some equipment adds a stirring mechanism, such as patent number CN217250625U. However, mechanical stirring can easily cause violent collisions between raw material particles, resulting in problems such as breakage of glutinous rice and wear on the skin of beans, reducing the yield rate.
[0004] To address this, a device for screening raw materials for zongzi (sticky rice dumplings) is proposed. Summary of the Invention
[0005] In order to overcome the shortcomings of the existing technology, the present invention provides a device for screening raw materials for zongzi (sticky rice dumplings).
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a screening device for zongzi raw materials, including a screening box, the top surface of the screening box being open and a feeding frame connected inside the opening, a spreading component for evenly spreading zongzi raw materials is provided inside the screening box below the feeding frame, the spreading component including a spreading frame connected to the inner wall of the screening box, guide rails being horizontally connected to the front and rear sides of the top of the spreading frame, sliding seats being slidably installed on the guide rails, and sliding frames being connected to the two sliding seats, a feeding pipe being connected to the inner wall of the sliding frame, the front and rear ends of the bottom of the feeding pipe abutting against the front and rear inner walls of the spreading frame, a middle flexible tube being connected to the top surface of the feeding pipe, the free end of the middle flexible tube being connected and communicating with the feeding frame, and a plurality of material blocking rotary plates being horizontally hinged at equal intervals on the inner wall of the sliding frame, a rectangular abutting protrusion being connected to the side of the material blocking rotary plate near the hinge end, the bottom surface of the abutting protrusion abutting against the bottom surface of the corresponding side of the material blocking rotary plate, and the top surface of the abutting protrusion corresponding to the bottom surface of the feeding pipe.
[0007] As a preferred embodiment of the present invention, the screening box is further provided with a driving component for driving the material spreading component and the screening component. The driving component includes rotating gears. A set of rotating gears is rotatably connected to the front and rear of the material spreading frame. There are several sets of rotating gears, and the two sets of rotating gears are staggered. The rotating gears are connected to the hinged ends of the corresponding material blocking rotary plates. A telescopic frame is sleeved on the sliding frame. A push motor is installed on the telescopic frame. The drive shaft of the push motor is connected to the sliding frame. A lock frame is connected to the front and rear ends of the telescopic frame. A push rack is connected to the upper and lower ends of the lock frame. The two corresponding push racks are staggered left and right, and the push racks correspond to the positions of the rotating gears at the corresponding positions. A transverse motor is installed on the sliding frame. The drive shaft of the transverse motor is connected to a driving gear. A fixed rack is connected to the inner wall of the screening box. The fixed rack meshes with the driving gear.
[0008] As a preferred embodiment of the present invention, a screening component for screening zongzi raw materials is provided below the material feeding component inside the screening box. The screening component includes a shaking frame, and a screening plate is connected to the bottom inner wall of the shaking frame. Several shaking frames are interconnected by plates. An electric guide rail is installed inside the screening box. The transmission end of the electric guide rail is connected to the plates. When the electric guide rail is running, the shaking frame is driven to shake left and right by sliding the transmission end left and right. A pusher plate is provided on the front inner wall of the shaking frame. The pusher plate is inclined and its bottom surface abuts against the screening plate. A sliding rod is connected to the side of the pusher plate. Sliding grooves are opened on both sides of the shaking frame corresponding to the sliding rods. The sliding rods are located in the sliding grooves. A hinge column is rotatably connected to the sides of several sliding rods. A motor frame is connected to the front of the plate, and a pusher is installed on the motor frame. The machine has a pusher motor drive shaft connected to a threaded rod, which is threaded to a hinge column. The pusher motor is also connected to a guide rod, which is slidably connected to the hinge column. There are at least two shaking frames, distributed vertically, and the screen holes of the screening plates decrease in size from top to bottom. This is used to screen different sizes of zongzi raw materials and debris. A fixed magnet is also connected to one side of the sliding rod. Reversing magnets are connected to the front and rear ends of the shaking frame at positions corresponding to the fixed magnets. The magnetic poles of the same end of the reversing magnets in the same group are opposite. The rear side of the discharge port is connected to and connected to a discharge port. A hole is opened on the screening box at the position corresponding to the discharge port and a discharge plate is connected there. The length of the discharge plates decreases in size from top to bottom. A hole is opened at the bottom of the front of the screening box and a discharge plate is also connected inside the hole. The discharge plate at the bottom corresponds to the bottom of the screening plate.
[0009] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. The material feeding tube moves back and forth on the guide rail through the sliding frame of the material feeding component. With the separation effect of the material blocking plate and the contact plate, the raw materials are quantitatively and evenly spread in the material feeding frame, ensuring that the raw materials fall into the screening component in a single layer. The evenly distributed and relatively thin rice dumpling raw materials can be screened by shaking, avoiding the sieve hole blockage caused by raw material accumulation or particle collision damage caused by forced stirring in traditional equipment. This significantly improves the yield rate. The overall structure is compact and easy to pack.
[0010] 2. The drive assembly uses staggered push racks and rotating gears to mesh. When the sliding frame moves back and forth, the sequential meshing of the push racks automatically controls the downward unloading and rotation reset of the material blocking plate. Combined with the displacement adjustment function of the telescopic frame, it can achieve precise unloading in both directions without manual intervention, making the operation highly efficient and reliable.
[0011] 3. The screening component is equipped with a multi-layer shaking frame. The sieve holes of the screening plate decrease in spacing from top to bottom. Combined with the left and right shaking driven by the electric guide rail, the raw materials are classified and screened according to particle size (such as whole particles, broken particles, and debris), effectively separating foreign impurities and improving screening accuracy and efficiency.
[0012] 4. The pusher plate achieves intelligent unfolding and resetting through a magnetic control reversing mechanism. When pushing, the tilted pusher plate scrapes the material against the screening plate to ensure that the raw material is completely discharged. When resetting, the magnetic repulsion drives the pusher plate to rotate and lift, detaching it from the screen plate surface to avoid scraping the raw material during the return stroke. Attached Figure Description
[0013] Figure 1 This is a front view of the present invention. Figure 2 This is a front cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the rear structure of the shaking frame of the present invention; Figure 4 This is a schematic diagram of the structure of the screening component of the present invention; Figure 5 This is a schematic diagram of the structure of the driving component of the present invention; Figure 6 This is a schematic diagram of the material spreading frame of the present invention.
[0014] The components are as follows: 10. Screening box; 11. Feeding frame; 12. Spreading frame; 13. Guide rail; 14. Sliding seat; 15. Sliding frame; 16. Feeding pipe; 17. Intermediate hose; 18. Material blocking rotary plate; 19. Abutting convex plate; 20. Horizontal movement motor; 21. Drive gear; 22. Fixed rack; 23. Rotating gear; 24. Propulsion rack; 25. Interlocking frame; 26. Telescopic frame; 27. Push motor; 28. Shaking frame; 29. Screening plate; 30. Electric guide rail; 31. Pushing plate; 32. Slide groove; 33. Slide rod; 34. Hinge column; 35. Threaded rod; 36. Guide rod; 37. Pushing motor; 38. Discharge port; 39. Fixed magnet; 40. Reversing magnet; 41. Discharge tray. Detailed Implementation
[0015] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.
[0016] Example: Figure 1 , Figure 2 and Figure 6 As shown, a rice dumpling ingredient screening device includes a screening box 10. The top surface of the screening box 10 is open, and a feeding frame 11 is connected inside the opening. Below the feeding frame 11, a spreading component for evenly spreading the rice dumpling ingredients is provided inside the screening box 10. The spreading component includes a spreading frame 12, which is connected to the inner wall of the screening box 10. Guide rails 13 are horizontally connected to the front and rear sides of the top of the spreading frame 12. Sliding seats 14 are slidably mounted on the guide rails 13. Sliding frames 15 are connected to the two sliding seats 14. A feeding pipe 16 is connected to the inner wall of the sliding frame 15. The front and rear ends of the bottom of the feeding pipe 16 abut against the front and rear inner walls of the spreading frame 12. The top surface of the feeding pipe 16 is connected to a middle hose 17. The free end of the middle hose 17 is connected to and communicates with the feeding frame 11. Several material blocking rotary plates 18 are horizontally and equally spaced hinged on the inner wall of the sliding frame 15. A rectangular abutting plate 19 is connected to the side of the material blocking rotary plate 18 near the hinge end. The bottom surface of the abutting plate 19 abuts against the bottom surface of the corresponding side of the material blocking rotary plate 18. The top surface of the abutting plate 19 corresponds to the bottom surface of the feeding pipe 16. A screening component for screening zongzi raw materials is provided below the material spreading component in the screening box 10. A driving component for driving the operation of the material spreading component and the screening component is also provided in the screening box 10.
[0017] Specifically, the raw materials for making zongzi (sticky rice dumplings) are fed from the feeding frame 11 into the screening box 10. The raw materials fall into the spreading frame 12 through the intermediate hose 17 and the discharge pipe 16. The raw materials are received by the material-blocking rotating plates 18. The driving component drives the sliding frame 15 to slide back and forth on the guide rail 13, allowing the raw materials to be spread on several material-blocking rotating plates 18. Then, the driving component controls the rotating plates 18 to rotate, allowing the raw materials spread on the rotating plates 18 to fall onto the screening component for screening. The convex plate 19 divides the space on each material blocking plate 18 into a separate material holding space, preventing the rice dumpling raw materials falling onto the material blocking plate 18 from flowing onto other material blocking plates 18. This makes the rice dumpling raw materials laid on the material spreading frame 12 controllable, thereby making the quantity of rice dumpling raw materials falling onto the screening component controllable and evenly spread. This allows screening to be carried out without the need for stirring or other mechanisms, avoiding problems such as breakage and wear caused by the rice dumpling raw materials squeezing and colliding with each other during the screening process, and increasing the quantity of high-quality rice dumpling raw materials after screening.
[0018] like Figure 2 , Figure 5 and Figure 6 As shown, the drive assembly includes a transverse motor 20, which is mounted on the sliding frame 15. The drive shaft of the transverse motor 20 is connected to a drive gear 21. A fixed rack 22 is connected to the inner wall of the screening box 10, meshing with the drive gear 21. A set of rotating gears 23 is rotatably connected to both the front and rear of the material spreading frame 12. There are several sets of rotating gears 23, which are staggered. The rotating gears 23 are hinged to the corresponding positions of the material blocking rotary plates 18. A C-shaped telescopic frame 26 is fitted onto the sliding frame 15. A drive motor 27 is installed on the top, and the drive shaft of the drive motor 27 is connected to the sliding frame 15. The front and rear ends of the telescopic frame 26 are connected to the interlocking frame 25. The upper and lower ends of the interlocking frame 25 are connected to the push rack 24. The two corresponding push racks 24 are staggered left and right, and the push racks 24 correspond to the rotating gears 23 at the corresponding positions. It should be noted that the hinge end of the material blocking plate 18 and the material spreading frame 12 has been treated with resistance enhancement. The friction between the material blocking plate 18 and the material spreading frame 12 can be increased by the use of components such as rubber rings, thereby increasing the load-bearing capacity of the material blocking plate 18.
[0019] Specifically, the transverse motor 20 drives the drive gear 21 to rotate. When the drive gear 21 rotates, it generates thrust by meshing with the fixed rack 22, thereby driving the sliding frame 15 to slide on the guide rail 13. By controlling the forward and reverse rotation of the transverse motor 20, the reciprocating sliding of the sliding frame 15 on the guide rail 13 can be controlled. After the feeding pipe 16 drops the rice dumpling raw material onto the blocking rotary plate 18, after the feeding pipe 16 slides away from the blocking rotary plate 18, the staggered push racks 24 first mesh with the rotating gear 23, and drive the rotating gear 23 to rotate during the sliding process, thereby driving the blocking rotary plate 18 at the corresponding position to rotate downward, dropping the quantitative rice dumpling raw material carried by the blocking rotary plate 18 onto the screening component. Then, the push racks 24 slide away from the blocking rotary plate 18, and the push racks 24 at the corresponding longitudinal position mesh with the rotating gear 23 again. When the feeding pipe 16 moves, the material blocking plate 18 rotates and resets. As the feeding pipe 16 moves, the rice dumpling raw materials are gradually laid on the screening component. After the feeding pipe 16 moves to one end of the spreading frame 12, the transverse motor 20 controls the feeding pipe 16 to move back. At this time, the transmission shaft of the interlocking frame 25 extends and retracts, causing the telescopic frame 26 to slide on the sliding frame 15 and change the position of the push rack 24. During the sliding process of changing the position of the push rack 24, the material blocking plate 18 at the corresponding position of the feeding pipe 16 is rotated down and reset, and then moved to the rear of the feeding pipe 16 in the direction of travel. Then, during the process of the feeding pipe 16 moving back, due to the change in the direction of travel of the feeding pipe 16, the staggered push racks 24 will also change the order of meshing. However, due to the different directions of travel, the push rack 24 that meshes first will still drive the material blocking plate 18 to rotate down.
[0020] like Figure 2 , Figure 3 and Figure 4As shown, the screening assembly includes a shaking frame 28, with a screening plate 29 connected to the bottom inner wall of the shaking frame 28. There are at least two shaking frames 28 arranged vertically, and the sieve holes of the screening plate 29 decrease in size from top to bottom. This is used to screen different sizes of zongzi ingredients and debris. Several shaking frames 28 are interconnected frontally via plates. An electric guide rail 30 is installed inside the screening box 10. The transmission end of the electric guide rail 30 is connected to the plates. When the electric guide rail 30 operates, it drives the shaking frame 28 to shake left and right by sliding the transmission end left and right. A pusher plate 31 is provided on the front inner wall of the shaking frame 28. The pusher plate 31 is inclined and its bottom surface abuts against the screening plate 29. A sliding rod 33 is connected to the side of the pusher plate 31. Sliding grooves 32 are opened on both sides of the shaking frame 28 corresponding to the sliding rods 33. The sliding rods 33 are located within the sliding grooves 32. Several sliding rods 33 rotate laterally. A hinge column 34 is connected to the front of the plate, and a motor frame is connected to the front of the plate. A pusher motor 37 is installed on the motor frame. The drive shaft of the pusher motor 37 is connected to a threaded rod 35, which is threaded to the hinge column 34. A guide rod 36 is also connected to the pusher motor 37. The guide rod 36 is slidably connected to the hinge column 34. A fixed magnet 39 is also connected to one side of the slide rod 33. A reversing magnet 40 is connected to the front and rear ends of the side of the shaking frame 28 at the positions corresponding to the fixed magnet 39. The magnetic poles of the same end of the reversing magnets 40 in the same group are opposite. The rear side of the discharge port 38 is connected to and connected to the discharge port 38. A hole is opened on the screening box 10 at the position corresponding to the discharge port 38 and a discharge plate 41 is connected to it. The length of the discharge plates 41 decreases at equal intervals from top to bottom. A hole is opened at the bottom of the front of the screening box 10 and a discharge plate 41 is also connected to the hole. The discharge plate 41 at the bottom corresponds to the bottom of the screening plate 29.
[0021] Specifically, the electric guide rail 30 drives the shaking frame 28 to shake by sliding the drive shaft left and right, allowing the rice dumpling ingredients to be screened through the sieve holes during the shaking process. Rice dumpling ingredients of different sizes are distributed on each of the several screening plates 29 after being screened. Debris and other impurities are discharged through the bottom screening plate 29. After screening, the pusher motor 37 drives the threaded rod 35 to rotate. The threaded rod 35 pushes the hinge column 34 through the threaded connection with the hinge column 34. The hinge column 34 then pushes the pusher plate 31 through the slide rod 33, causing the pusher plate 31 to push the rice dumpling ingredients on the screening plate 29 out of the discharge port 38, and then discharged out of the screening box 10 through the discharge tray 41. The user can catch the rice dumpling ingredients by setting a receiving object, and push the pusher plate 31 to the limit. When in position, the fixed magnet 39 corresponds to the reversible magnet 40 on the rear side of the shaking frame 28. The magnetic repulsion between the reversible magnet 40 and the fixed magnet 39 pushes the slide bar 33 to rotate, causing the pusher plate 31 to unfold on the screening plate 29 to break free from contact with the screening plate 29. Then, the pusher motor 37 controls the threaded rod 35 to rotate and pull the hinge column 34 to reset. The unfolded pusher plate 31 will not scrape the rice dumpling raw materials during the reset process. After resetting to the front side of the shaking frame 28, the fixed magnet 39 corresponds to the reversible magnet 40 on the front side of the shaking frame 28. The magnetic force settings of the two reversible magnets 40 in different positions will cause the fixed magnet 39 to drive the pusher plate 31 to rotate and reset through magnetic force, thereby causing the pusher plate 31 to contact the screening plate 29 again.
[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A device for screening raw materials for zongzi (sticky rice dumplings), characterized in that, The system includes a screening box (10), with an opening on the top surface of the screening box (10) and a feeding frame (11) connected inside the opening. A spreading assembly for evenly spreading the zongzi ingredients is located below the feeding frame (11) inside the screening box (10). The spreading assembly includes a spreading frame (12), which is connected to the inner wall of the screening box (10). Guide rails (13) are horizontally connected to the front and rear sides of the top of the spreading frame (12). Sliding seats (14) are slidably mounted on the guide rails (13), and sliding frames (15) are connected to the two sliding seats (14). The inner wall of the feeding pipe (16) is connected to the feeding pipe (16). The front and back ends of the feeding pipe (16) abut against the front and back inner walls of the feeding frame (12). The top surface of the feeding pipe (16) is connected to the middle hose (17). The free end of the middle hose (17) is connected to and communicates with the feeding frame (11). The inner wall of the sliding frame (15) is hinged with several material blocking rotary plates (18). The screening box (10) is equipped with a screening component for screening zongzi raw materials below the feeding component. The screening box (10) is also equipped with a driving component for driving the feeding component and the screening component to operate. The drive assembly includes a rotating gear (23). A set of rotating gears (23) is rotatably connected to the front and rear of the material spreading frame (12). There are several sets of rotating gears (23), and the two sets of rotating gears (23) are staggered. The rotating gears (23) are connected to the hinged ends of the corresponding material blocking plates (18). A telescopic frame (26) is sleeved on the sliding frame (15). A push motor (27) is installed on the telescopic frame (26). The drive shaft of the push motor (27) is connected to the sliding frame (15). The front and rear ends of the telescopic frame (26) are connected to a chain frame (25). The upper and lower ends of the chain frame (25) are connected to a push rack (24). The two push racks (24) corresponding to the upper and lower ends are staggered left and right, and the push racks (24) correspond to the rotating gears (23) at the corresponding positions.
2. The rice dumpling raw material screening device according to claim 1, characterized in that, The material blocking swivel plate (18) has a rectangular abutting plate (19) connected to one side near the hinge end. The bottom surface of the abutting plate (19) abuts against the bottom surface of the corresponding side of the material blocking swivel plate (18), and the top surface of the abutting plate (19) corresponds to the bottom surface of the feed tube (16).
3. The rice dumpling raw material screening device according to claim 1, characterized in that, The drive assembly also includes a transverse motor (20), which is mounted on a sliding frame (15). The drive shaft of the transverse motor (20) is connected to a drive gear (21), and a fixed rack (22) is connected to the inner wall of the screening box (10). The fixed rack (22) meshes with the drive gear (21).
4. The rice dumpling raw material screening device according to claim 1, characterized in that, The screening assembly includes a shaking frame (28), with a screening plate (29) connected to the bottom inner wall of the shaking frame (28). Several shaking frames (28) are interconnected on the front by plates. An electric guide rail (30) is installed inside the screening box (10). The transmission end of the electric guide rail (30) is connected to the plates. When the electric guide rail (30) is running, it drives the shaking frame (28) to shake left and right by sliding the transmission end left and right. A pusher plate (31) is provided on the front inner wall of the shaking frame (28). The pusher plate (31) is in an inclined state and its bottom surface abuts against the screening plate (29). The side of the pusher plate (31) A sliding rod (33) is connected to the sliding frame (28). Sliding grooves (32) are provided on both sides of the sliding frame (28) corresponding to the sliding rod (33). The sliding rod (33) is located in the sliding groove (32). A hinge column (34) is rotatably connected to the side of several sliding rods (33). A motor frame is connected to the front of the plate. A pusher motor (37) is installed on the motor frame. A threaded rod (35) is connected to the drive shaft of the pusher motor (37). The threaded rod (35) is threadedly connected to the hinge column (34). A guide rod (36) is also connected to the pusher motor (37). The guide rod (36) is slidably connected to the hinge column (34).
5. The rice dumpling raw material screening device according to claim 4, characterized in that, The number of the shaking frames (28) is at least two and they are distributed vertically. The sieve holes of the screening plate (29) from top to bottom are equally spaced and reduced in size. They are used to screen zongzi raw materials and debris of different sizes.
6. The rice dumpling raw material screening device according to claim 5, characterized in that, One side of the slide bar (33) is also connected to a fixed magnet (39), and the front and rear ends of the side of the shaking frame (28) are connected to a reversing magnet (40) at the position corresponding to the fixed magnet (39). The magnetic poles of the same end of the reversing magnets (40) in the same group are opposite.
7. The rice dumpling raw material screening device according to claim 6, characterized in that, The rear side of the discharge port (38) is connected to and communicates with the discharge port (38). The screening box (10) has a hole at the position corresponding to the discharge port (38) and is connected to the discharge plate (41). The length of the discharge plate (41) decreases at equal intervals from top to bottom.
8. The rice dumpling raw material screening device according to claim 7, characterized in that, The screening box (10) has an opening at the bottom front and a discharge tray (41) is connected inside the opening. The discharge tray (41) at the bottom corresponds to the bottom of the screening plate (29).