Rice polishing device for rice processing

Abstract

The utility model discloses a rice polishing device for rice processing, which comprises a rack, one side of the rack is fixedly connected with a fixed pipe, the fixed pipe is internally and rotatably connected with a rotating pipe, the outer side of the rotating pipe is fixedly connected with a conveying roller, the rack is fixedly connected with a reticulated shell, the rotating pipe is fixedly connected with a central pipe, the central pipe is positioned in the middle of the reticulated shell, and the conveying roller is fixedly connected with the rotating pipe. The outer side of the central pipe is sleeved with a polishing roller, the polishing roller is fixedly connected with the material conveying roller, a fixing piece is arranged on the other side of the machine frame, the extrusion piece is fixedly connected with threaded rods at equal intervals in the circumferential direction, the threaded rods are sleeved with the fixing piece, the fixing piece is fixedly connected with a limiting sleeve, and the adjacent threaded rods are sleeved with the limiting sleeve. Through the linkage type limiting structure and the spring locking design, the constraint of the limiting sleeve can be quickly relieved through one-hand operation. And compared with a traditional double-nut or gasket anti-loosening scheme, the disassembly efficiency of the fastener during maintenance of the polishing roller is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rice polishing devices, and more specifically, it relates to a rice polishing device for rice processing. Background Technology

[0002] Rice polishing is the process of removing the outer layer of rice to improve its appearance and taste. It is typically done using a rice polishing machine, which works by using friction and airflow to remove the outer layer. Polished rice has a smoother surface, a brighter color, and a more delicate texture.

[0003] While existing polishing devices can polish rice, the following problems remain: Existing rice polishing machines require regular replacement and maintenance of the polishing rollers. Maintenance involves loosening the nuts securing the polishing rollers. However, these nuts are prone to wear after prolonged exposure to continuous high-frequency vibrations and heavy workloads. Once worn, the intense vibrations during machine operation significantly increase the risk of the nuts loosening. Currently used nut anti-loosening mechanisms often involve cumbersome procedures, requiring specialized tools or complex steps. This not only increases the difficulty for maintenance personnel but also directly slows down the entire disassembly and maintenance process, potentially leading to unnecessary production interruptions.

[0004] Therefore, there is an urgent need for a rice polishing device for rice processing. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a rice polishing device for rice processing to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a rice polishing device for rice processing, comprising a frame, a fixed pipe fixedly connected to one side of the frame, a rotating pipe rotatably connected inside the fixed pipe, a feeding roller fixedly connected to the outside of the rotating pipe, a mesh shell fixedly connected to the frame, a central pipe fixedly connected to the rotating pipe, the central pipe being located in the middle of the mesh shell, the central pipe having a through hole, a polishing roller sleeved on the outside of the central pipe, the polishing roller being fixedly connected to the feeding roller, a feed hopper fixedly connected to the fixed pipe, a motor fixedly connected to the frame, the motor being driven by a pulley and a belt to the rotating pipe, a drain pipe fixedly connected inside the frame, a fixing member provided on the other side of the frame, a through hole communicating with the mesh shell on the lower side of the fixing member, threaded rods with equal circumferential spacing fixedly connected to the frame, the fixing member sleeved on the threaded rods, a limiting sleeve fixedly connected to the fixing member, the limiting sleeve sleeved on the adjacent threaded rods, and the threaded rods having a fastening structure and a limiting structure.

[0009] The present invention is further configured such that the fastening structure includes a nut, the nut is threadedly connected to the threaded rod, the nut is press-fitted with the limiting sleeve, and the nut is fixedly connected to a fixing sleeve.

[0010] The present invention is further configured such that a sliding sleeve is slidably connected to the fixed sleeve, and a spring is fixedly connected between the sliding sleeve and the fixed sleeve.

[0011] The present invention is further configured such that the fixed sleeve is fixedly connected with three limiting hooks, and the sliding sleeve is provided with three limiting grooves, wherein the limiting hooks are limited and cooperate with the limiting grooves of the fixed sleeve.

[0012] The present invention is further configured such that the limiting structure includes fixed seats distributed at equal intervals in the circumferential direction, the fixed seats are rotatably connected to a rotating shaft, the rotating shaft is fixedly connected to a limiting hook, and the limiting hook cooperates with the limiting sleeve for limiting.

[0013] The present invention is further configured such that a torsion spring is connected between the rotating shaft and the adjacent fixed seat.

[0014] The present invention is further configured such that the limiting hook is fixedly connected to a fixing rod, and the sliding sleeve is provided with circumferentially equally spaced extrusion parts, the extrusion parts being extruded and engaged with the fixing rod.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a rice polishing device for rice processing, which has the following beneficial effects:

[0017] 1. This utility model, through a linkage-type limiting structure and spring locking design, enables quick release of the limiting sleeve constraint with single-handed operation. Compared with traditional double-nut or washer anti-loosening solutions, it eliminates the need for alternating tool use and repeated tightening steps, improving the efficiency of fastener disassembly during polishing roller maintenance.

[0018] 2. This utility model adopts a multi-level mechanical interlocking mechanism, which forms a triple anti-loosening guarantee, effectively resists the high-frequency vibration of the polishing machine, prevents the nut of the threaded rod from loosening unexpectedly during operation, and reduces the equipment failure rate.

[0019] 3. This utility model automates the resetting process through a limiting mechanism: during installation, only the nut needs to be tightened, and the limiting sleeve automatically squeezes the limiting hook two, causing it to reset and engage under the action of the torsion spring; at the same time, the squeezing part does not contact the fixing rod, eliminating the need for manual calibration. Maintenance personnel do not need special tools or complex operations, significantly reducing the risk of disassembly and assembly errors and the workload. Attached Figure Description

[0020] Figure 1 This is a front structural diagram of a rice polishing device for rice processing according to the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the motor and the sewage pipe in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the mesh shell and the central tube in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the fastener and nut in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the limiting sleeve and the sliding sleeve in this utility model;

[0025] Figure 6 This is a cross-sectional view of the threaded rod and nut in this utility model;

[0026] Figure 7 This is a cross-sectional view of the fixed sleeve and sliding sleeve in this utility model;

[0027] Figure 8 This is a schematic diagram of the limiting hook and fixing rod in this utility model.

[0028] In the diagram: 1. Frame; 2. Fixed pipe; 3. Rotating pipe; 4. Feed roller; 5. Mesh shell; 6. Central pipe; 7. Polishing roller; 8. Feed hopper; 9. Motor; 10. Drain pipe; 11. Fixing component; 12. Threaded rod; 13. Limiting sleeve; 14. Nut; 15. Fixed sleeve; 16. Sliding sleeve; 17. Spring; 18. Limiting hook one; 19. Fixed seat; 20. Rotating shaft; 21. Limiting hook two; 22. Torsion spring; 23. Fixed rod; 24. Extrusion section. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] Please see Figures 1-8 A rice polishing device for rice processing includes a frame 1, a fixed pipe 2 fixedly connected to one side of the frame 1, a rotating pipe 3 rotatably connected inside the fixed pipe 2, a feeding roller 4 fixedly connected to the outside of the rotating pipe 3, a mesh shell 5 fixedly connected to the frame 1, a central pipe 6 fixedly connected to the rotating pipe 3, the central pipe 6 being located in the middle of the mesh shell 5, the central pipe 6 having a through hole, a polishing roller 7 sleeved on the outside of the central pipe 6, the polishing roller 7 being fixedly connected to the feeding roller 4, a feed hopper 8 fixedly connected to the fixed pipe 2, and a feed hopper 8 fixedly connected to the frame 1. Motor 9 is connected to rotating tube 3 via pulley and belt. Drainage pipe 10 is fixed inside frame 1. Fixing member 11 is provided on the other side of frame 1. Through hole communicating with mesh shell 5 is provided on the lower side of fixing member 11. Circumferentially spaced threaded rods 12 are fixed to frame 1. Fixing member 11 is sleeved on threaded rod 12. Limiting sleeve 13 is fixed to fixing member 11. Limiting sleeve 13 is sleeved on adjacent threaded rod 12. Threaded rod 12 is provided with fastening structure and limiting structure.

[0033] Please see Figures 4-6The fastening structure includes a nut 14, which is threadedly connected to a threaded rod 12. The nut 14 is press-fitted with a limiting sleeve 13, and a fixing sleeve 15 is fixedly connected to the nut 14. A sliding sleeve 16 is slidably connected to the fixing sleeve 15, and a spring 17 is fixedly connected between the sliding sleeve 16 and the fixing sleeve 15. Three limiting hooks 18 are fixedly connected to the fixing sleeve 15, and the sliding sleeve 16 is provided with three limiting grooves. The limiting hooks 18 are limited and fitted with the limiting grooves of the fixing sleeve 15.

[0034] Please see Figures 6-8 The limiting structure includes fixed seats 19 with equal circumferential spacing, fixed seats 19 are rotatably connected to a rotating shaft 20, the rotating shaft 20 is fixedly connected to a limiting hook 21, the limiting hook 21 is limited in fit with the limiting sleeve 13; a torsion spring 22 is between the rotating shaft 20 and the adjacent fixed seat 19; a fixed rod 23 is fixedly connected to the limiting hook, and the sliding sleeve 16 is provided with pressing parts 24 with equal circumferential spacing, the pressing parts 24 are pressed in fit with the fixed rod 23.

[0035] The working principle of this utility model is as follows: The sewage pipe 10 is connected to the blower, rice is put into the feed hopper 8, and then the motor 9 is started. The output shaft of the motor 9 rotates through the pulley and belt to rotate the pipe 3. At the same time, the polishing roller 7 and the conveying roller 4 rotate circumferentially inside the mesh shell 5. The conveying roller 4 conveys the polishing material into the mesh shell 5, and the polishing roller 7 rotates circumferentially to polish the rice. The impurities polished from the rice fall into the sewage pipe 10, the blower discharges the impurities, and the polished rice is discharged from the through hole of the fixing part 11.

[0036] When the mesh shell 5 and the feed roller 4 need to be replaced, first rotate the sliding sleeve 16 so that the pressing part 24 of the sliding sleeve 16 contacts the fixed rod 23. Then pull the sliding sleeve 16, and the pressing part 24 of the sliding sleeve 16 presses the fixed rod 23. The fixed rod 23 drives the limit hook 21 to rotate. The limit hook 21 drives the rotating shaft 20 to rotate, and the torsion spring 22 is tightened. The limit hook 21 loses contact with the limit sleeve 13. When the sliding sleeve 16 is pulled, the limit hook 21 and the groove of the sliding sleeve 16 limit the fit, so that the pressing part 24 and the fixed rod 23 are always pressed, ensuring that the torsion spring 22 is always in a tightened state. Turn the nut 14 with a wrench to release the pressure on the limit sleeve 13. After the nut 14 loses contact with the threaded rod 12, then remove the fixing part 11 and replace and repair the mesh shell 5 and the polishing roller 7.

[0037] After the replacement is completed, release the limit hook 18 from the sliding sleeve 16, so that the limit hook 21 loses contact with the limit sleeve 13. When the nut 14 is tightened, the limit sleeve 13 squeezes the limit hook, so that the limit hook is again in contact with the limit sleeve 13, and the squeezing part 24 does not contact the fixing rod 23.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rice polishing apparatus for rice processing, comprising a frame (1), characterized in that: A fixed pipe (2) is fixedly connected to one side of the frame (1). A rotating pipe (3) is rotatably connected inside the fixed pipe (2). A feeding roller (4) is fixedly connected to the outside of the rotating pipe (3). A mesh shell (5) is fixedly connected to the frame (1). A central pipe (6) is fixedly connected to the rotating pipe (3). The central pipe (6) is located in the middle of the mesh shell (5). The central pipe (6) is provided with a through hole. A polishing roller (7) is sleeved on the outside of the central pipe (6). The polishing roller (7) is fixedly connected to the feeding roller (4). A feed hopper (8) is fixedly connected to the fixed pipe (2). A motor (9) is fixedly connected to the frame (1). The machine (9) and the rotating tube (3) are driven by pulleys and belts. A drain pipe (10) is fixedly connected inside the frame (1). A fixing member (11) is provided on the other side of the frame (1). A through hole communicating with the mesh shell (5) is provided on the lower side of the fixing member (11). A threaded rod (12) with equal circumferential spacing is fixedly connected to the frame (1). The fixing member (11) is sleeved on the threaded rod (12). A limiting sleeve (13) is fixedly connected to the fixing member (11). The limiting sleeve (13) is sleeved on the adjacent threaded rod (12). The threaded rod (12) is provided with a fastening structure and a limiting structure.

2. The rice polishing device for rice processing according to claim 1, characterized in that: The fastening structure includes a nut (14), which is threaded to the threaded rod (12). The nut (14) is press-fitted with the limiting sleeve (13), and the nut (14) is fixedly connected to a fixing sleeve (15).

3. The rice polishing device for rice processing according to claim 2, characterized in that: The fixed sleeve (15) is slidably connected to a sliding sleeve (16), and a spring (17) is fixedly connected between the sliding sleeve (16) and the fixed sleeve (15).

4. A rice polishing device for rice processing according to claim 3, characterized in that: The fixed sleeve (15) is fixedly connected with three limiting hooks (18), and the sliding sleeve (16) is provided with three limiting grooves. The limiting hooks (18) are matched with the limiting grooves of the fixed sleeve (15).

5. A rice polishing device for rice processing according to claim 4, characterized in that: The limiting structure includes fixed seats (19) distributed circumferentially at equal intervals. The fixed seats (19) are rotatably connected to a rotating shaft (20). The rotating shaft (20) is fixedly connected to a limiting hook (21). The limiting hook (21) is limited in cooperation with the limiting sleeve (13).

6. A rice polishing device for rice processing according to claim 5, characterized in that: A torsion spring (22) is connected between the rotating shaft (20) and the adjacent fixed seat (19).

7. A rice polishing device for rice processing according to claim 6, characterized in that: The limiting hook is fixedly connected to a fixing rod (23), and the sliding sleeve (16) is provided with circumferentially evenly distributed extrusion parts (24), and the extrusion parts (24) are extruded and engaged with the fixing rod (23).

Images