Synchronous drying and polishing device for rice processing
By integrating an electric heater and a polishing roller into a synchronous drying and polishing device, the problems of large production space occupation, high equipment investment, and easy damage to rice caused by separate processing are solved, achieving efficient integrated drying and polishing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI PROVINCE NANLING COUNTY JINSUI RICE CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-05
Smart Images
Figure CN224321462U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of polishing devices, specifically relating to a synchronous drying and polishing device for rice processing. Background Technology
[0002] Rice is a common grain crop, the main food ingredient obtained from paddy rice after processing such as hulling and bran removal. It is one of the most important grains in the world and a staple food in many cultures. The rice processing involves a series of steps, including impurity removal, drying, hulling, polishing, and drying, with polishing being a crucial step in the process.
[0003] Currently, existing polishing devices typically use rotating polishing rollers to polish rice during operation. The rice grains continuously tumble and collide within the chamber, generating constant friction and pressure between the grains and the polishing roller surface, as well as between the grains themselves. This process efficiently removes bran and other impurities from the rice grain surface, ultimately resulting in a smooth and glossy polished finish.
[0004] However, rice itself contains a certain amount of moisture. After polishing, it needs to undergo a secondary drying process to further reduce the moisture content and prevent it from becoming damp. Drying not only prevents rice from becoming moldy or sprouting during storage but also prevents it from being contaminated by microorganisms, thus extending its shelf life and maintaining its quality and taste. The problem is that currently, polishing and drying are usually done by two separate sets of machines. This separate processing method not only occupies a large production space, increasing equipment investment and site costs, but also leads to low production efficiency. Because polishing and drying are two independent steps, the rice needs to be transferred between the two sets of machines, which not only increases operational complexity but also easily causes damage and waste of rice during the transfer process. Utility Model Content
[0005] The purpose of this invention is to provide a simultaneous drying and polishing device for rice processing, aiming to solve the problem that in the existing technology, polishing and drying are usually completed by two different sets of machines. This separate processing method not only occupies a large production space, increases equipment investment and site costs, but also leads to low production efficiency. Since polishing and drying are two independent steps, the rice needs to be transferred between the two sets of machines, which not only increases the complexity of operation, but also easily causes damage and waste of rice during the transfer process.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a synchronous drying and polishing device for rice processing, comprising a polishing barrel, a feeding hopper installed on one side of the polishing barrel, a discharging hopper connected to the bottom end of the polishing barrel, a polishing roller assembled inside the polishing barrel, an installation block connected to the top end of the polishing barrel, an electric heater connected to the top end of the installation block, and fixing blocks symmetrically installed on the top ends of the installation blocks. A bidirectional threaded rod is rotatably connected between the two fixing blocks, and a threaded sleeve is threadedly connected to the surface of the bidirectional threaded rod. A clamping block is installed at one end of the threaded sleeve.
[0007] In a preferred embodiment of the synchronous drying and polishing device for rice processing according to this utility model, the bottom end of the threaded sleeve is fitted with the top end of the mounting block, and the bidirectional threaded rod can be rotatably connected to the fixed block through a bearing.
[0008] In a preferred embodiment of the synchronous drying and polishing device for rice processing according to this utility model, the cross-section of the clamping block is "L" shaped, and the size of the notch of the clamping block is adapted to the size of the mounting ears on both sides of the electric heater.
[0009] In a preferred embodiment of the synchronous drying and polishing device for rice processing according to this utility model, the threaded sleeve is symmetrically connected to the surface of the bidirectional threaded rod, and the electric heater can be detachably and fixedly connected to the mounting block through the clamping block, the threaded sleeve and the bidirectional threaded rod.
[0010] As a preferred embodiment of the synchronous drying and polishing device for rice processing according to this utility model, the side wall of the discharge hopper is equipped with a support block. Two support blocks are provided, and a guide plate is rotatably connected between the two support blocks. A rectangular block is connected to the side wall of the guide plate. A groove is opened at the top of the rectangular block. A slider is slidably connected inside the groove. A concave block is connected to the top of the slider. The slider and the groove are adapted to each other. The cross-section of the slider and the groove is convex.
[0011] As a preferred embodiment of the synchronous drying and polishing device for rice processing according to this utility model, the side wall of the discharge hopper is equipped with a protrusion, and the top of the protrusion is connected to an electric rod.
[0012] In a preferred embodiment of the synchronous drying and polishing device for rice processing according to this utility model, the telescopic end of the electric rod is rotatably connected to the concave block, and the guide plate can be connected to the discharge hopper by means of a support block, a rectangular block, a chute, a slider, a protrusion and the electric rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The electric heater is mounted on the mounting block via a combination of a bidirectional threaded rod, a threaded sleeve, and a clamping block. Once activated, the electric heater heats the polishing drum, working in tandem with the polishing rollers to simultaneously achieve drying and polishing in the rice processing. This significantly reduces the moisture content of the rice while greatly improving processing efficiency and drying effect, further reducing costs. Furthermore, it eliminates the need to transfer rice between two sets of machines, which not only increases operational complexity but also easily leads to rice damage and waste during transfer.
[0015] The angle of the guide plate can be flexibly adjusted through the coordinated action of the support block, rectangular block groove, slider, protrusion, and electric rod. When rapid discharge is required, the guide plate is adjusted to a steep angle position, using gravity to accelerate the rice grains to slide down, significantly improving discharge efficiency; when precise flow control is required, the tilt angle of the guide plate is reduced, allowing the rice grains to pass through at a stable flow rate. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the present utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure between the electric heater and the mounting block of this utility model;
[0020] Figure 4 This is a schematic diagram of the connection structure between the guide plate and the discharge hopper of this utility model;
[0021] Figure 5 This utility model Figure 4 A magnified structural diagram at point A in the diagram.
[0022] In the diagram: 1. Polishing barrel; 2. Feed hopper; 3. Discharge hopper; 4. Polishing roller; 5. Mounting block; 6. Electric heater; 7. Fixing block; 8. Bidirectional threaded rod; 9. Threaded sleeve; 10. Clamping block; 11. Support block; 12. Guide plate; 13. Rectangular block; 14. Slide groove; 15. Slider; 16. Protrusion; 17. Electric rod; 18. Concave block. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-5 The present invention provides the following technical solution: a synchronous drying and polishing device for rice processing, comprising a polishing barrel 1, a feeding hopper 2 installed on one side of the polishing barrel 1, a discharging hopper 3 connected to the bottom end of the polishing barrel 1, a polishing roller 4 assembled inside the polishing barrel 1, an mounting block 5 connected to the top end of the polishing barrel 1, an electric heater 6 connected to the top end of the mounting block 5, a fixing block 7 symmetrically installed on the top end of the mounting block 5, a bidirectional threaded rod 8 rotatably connected between the two fixing blocks 7, a threaded sleeve 9 threadedly connected to the surface of the bidirectional threaded rod 8, and a clamping block 10 installed at one end of the threaded sleeve 9.
[0025] In practical use, the rice to be polished is fed into the polishing roller 4 through the feed hopper 2. The polishing roller 4 is driven to rotate by a servo motor installed on the side wall of the polishing barrel 1. Under the rotation of the polishing roller 4, the rice tumbles and collides with each other in the cavity, and the rice grains form continuous friction and compression with the surface of the polishing roller and between the rice grains. This process effectively removes bran powder and other impurities from the surface of the rice grains, ultimately giving the rice grains a smooth and shiny polished effect. The processed rice is then discharged through the discharge hopper 3.
[0026] Preferably, the bottom end of the threaded sleeve 9 fits against the top end of the mounting block 5, the bidirectional threaded rod 8 can be rotatably connected to the fixed block 7 through the bearing, the cross section of the clamping block 10 is "L" shaped, the size of the notch of the clamping block 10 is adapted to the size of the mounting ears on both sides of the electric heater 6, the threaded sleeve 9 is symmetrically connected to the surface of the bidirectional threaded rod 8, and the electric heater 6 can be detachably fixedly connected to the mounting block 5 through the clamping block 10, the threaded sleeve 9 and the bidirectional threaded rod 8.
[0027] In practical use, when using this polishing device, the electric heater 6 is first installed on the mounting block 5. The operator rotates the bidirectional threaded rod 8, and its threaded sleeve 9 moves along the threads on the surface of the bidirectional threaded rod 8. The bottom end of the threaded sleeve 9 is in contact with the top end of the mounting block 5, so the threaded sleeve 9 does not rotate with the bidirectional threaded rod 8. Then, the opposing movement of the two sets of threaded sleeves 9 causes the clamping block 10 to tighten, and finally the mounting ears on both sides of the electric heater 6 are fixed by the clamping block 10. To ensure thermal efficiency, a sealing structure is provided between the electric heater 6 and the mounting block 5 to reduce heat loss. After the electric heater 6 is started, the heat it generates can be conducted to the polishing barrel 1, forming a synergistic effect with the rotating polishing roller 4, realizing the drying and polishing functions simultaneously during rice processing, effectively reducing the moisture content of rice grains, and significantly improving processing efficiency and drying uniformity. The model of the electric heater 6 is: DYT-Z2.
[0028] Preferably, the side wall of the discharge hopper 3 is equipped with a support block 11. There are two support blocks 11, and a guide plate 12 is rotatably connected between the two support blocks 11. A rectangular block 13 is connected to the side wall of the guide plate 12. A groove 14 is opened at the top of the rectangular block 13. A slider 15 is slidably connected inside the groove 14. A concave block 18 is connected to the top of the slider 15. The slider 15 and the groove 14 are compatible. The cross-section of the slider 15 and the groove 14 are both convex. A protrusion 16 is installed on the side wall of the discharge hopper 3. An electric rod 17 is connected to the top of the protrusion 16. The telescopic end of the electric rod 17 is rotatably connected to the concave block 18. The guide plate 12 can be flipped and connected to the discharge hopper 3 through the support block 11, the rectangular block 13, the groove 14, the slider 15, the protrusion 16 and the electric rod 17.
[0029] In practical use, after the operator starts the electric rod 17, its telescopic end pushes the concave block 18 to move. The concave block 18 and the electric rod 17 are rotatably connected, so this will not affect the normal extension and retraction of the electric rod 17. Subsequently, the concave block 18 drives the slider 15 to slide along the slide groove 14. Then, the guide plate 12 will rotate between the support blocks 11, thereby adjusting the tilt angle of the guide plate 12. The adjusted guide plate 12 can control the flow rate and flow of rice falling from the discharge hopper 3: when rapid discharge is required, the guide plate 12 is adjusted to a steep angle position, using gravity to accelerate the rice grains to fall, significantly improving the discharge efficiency; when fine control of the flow rate is required, the tilt angle of the guide plate 12 is reduced, allowing the rice grains to pass through at a stable flow rate.
[0030] Working principle: Rice to be polished is fed into polishing roller 4 through feed hopper 2, and driven to rotate by a servo motor on the side wall of polishing barrel 1. Under the action of polishing roller 4, the rice tumbles and collides, continuously rubbing and squeezing against the roller surface and between rice grains, effectively removing bran and impurities, making the rice grain surface smooth and shiny. The finished product is discharged through discharge hopper 3. During processing, the operator starts electric heater 6. A sealing structure is set between electric heater 6 and mounting block 5 to reduce heat loss. After starting, the heat generated by electric heater 6 is conducted to polishing barrel 1, working together with polishing roller 4 to achieve drying and polishing, reducing the moisture content of rice grains, and improving processing efficiency and uniformity. During discharge, electric lever 17 is activated to push concave block 18 to move. Concave block 18 drives slider 15 to slide along slide groove 14. Subsequently, guide plate 12 rotates between support blocks 11, thereby adjusting the tilt angle of guide plate 12. When rapid discharge is required, the guide plate 12 is adjusted to a steep angle position to accelerate the rice grains from falling by gravity, which significantly improves the discharge efficiency. When fine control of the flow rate is required, the tilt angle of the guide plate 12 is reduced so that the rice grains pass through at a stable flow rate.
[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A synchronous drying and polishing device for rice processing, comprising a polishing barrel (1), characterized in that: A feed hopper (2) is installed on one side of the polishing barrel (1), a discharge hopper (3) is connected to the bottom end of the polishing barrel (1), a polishing roller (4) is installed inside the polishing barrel (1), a mounting block (5) is connected to the top end of the polishing barrel (1), and an electric heater (6) is connected to the top end of the mounting block (5). The mounting block (5) is symmetrically mounted with a fixing block (7) at its top end. A bidirectional threaded rod (8) is rotatably connected between the two fixing blocks (7). A threaded sleeve (9) is threadedly connected to the surface of the bidirectional threaded rod (8). A clamping block (10) is mounted on one end of the threaded sleeve (9).
2. The synchronous drying and polishing device for rice processing according to claim 1, characterized in that: The bottom end of the threaded sleeve (9) is in contact with the top end of the mounting block (5), and the bidirectional threaded rod (8) can be rotatably connected to the fixed block (7) through the bearing.
3. The synchronous drying and polishing device for rice processing according to claim 1, characterized in that: The clamping block (10) has an "L" shaped cross section, and the size of the notch of the clamping block (10) is adapted to the size of the mounting ears on both sides of the electric heater (6).
4. The synchronous drying and polishing device for rice processing according to claim 1, characterized in that: The threaded sleeve (9) is symmetrically connected to the surface of the bidirectional threaded rod (8), and the electric heater (6) can be detachably and fixedly connected to the mounting block (5) through the clamping block (10), the threaded sleeve (9) and the bidirectional threaded rod (8).
5. The synchronous drying and polishing device for rice processing according to claim 1, characterized in that: The side wall of the discharge hopper (3) is equipped with a support block (11). There are two support blocks (11). A guide plate (12) is rotatably connected between the two support blocks (11). A rectangular block (13) is connected to the side wall of the guide plate (12). A groove (14) is opened at the top of the rectangular block (13). A slider (15) is slidably connected inside the groove (14). A concave block (18) is connected to the top of the slider (15). The slider (15) and the groove (14) are adapted to each other. The cross sections of the slider (15) and the groove (14) are both convex.
6. The synchronous drying and polishing device for rice processing according to claim 5, characterized in that: The side wall of the discharge hopper (3) is equipped with a protrusion (16), and the top of the protrusion (16) is connected to an electric rod (17).
7. The synchronous drying and polishing device for rice processing according to claim 6, characterized in that: The telescopic end of the electric rod (17) is rotatably connected to the concave block (18), and the guide plate (12) can be connected to the discharge hopper (3) by means of the support block (11), rectangular block (13), slide groove (14), slider (15), protrusion (16) and electric rod (17).