A rice processing stone removing machine

Abstract

This utility model belongs to the technical field of destoning machines for rice processing, specifically a destoning machine for rice processing. It includes a worktable, with a filter plate connected to its upper end via two large springs and two small springs. A feeding plate is inclinedly positioned on the upper end of the worktable, and a protective mechanism for protecting the material is installed on the feeding plate. Both the filter plate and the feeding plate are equipped with guiding mechanisms for guiding the material. This utility model has a reasonable structure. The rotation of the rotating rod drives the cam to rotate, and the cam, via a second connecting rod, drives the first connecting rod to move up and down, causing the push plate to reciprocate within a limiting sleeve. When the push plate pushes up, the large and small springs extend; when the push plate moves down, the springs quickly rebound, causing the filter plate to vibrate. This design allows only the filter plate to vibrate, while other components remain unaffected, avoiding overall equipment vibration, preventing parts from loosening, and improving operational stability and safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of destoners for rice processing, specifically a destoner for rice processing. Background Technology

[0002] Rice processing involves cleaning, hulling, and milling. The germ and aleurone layer of rice are rich in nutrients, comprising 64% of the total nutrients and over 90% of the essential nutrients for the human body, making it a staple food in southern China. Because most rice in my country originates from scattered, individual farming households, problems such as mixed varieties and inadequate harvesting and drying conditions often arise, leading to the introduction of impurities like sand and gravel during collection. If not thoroughly removed, this can clog processing equipment, reducing the cleanliness and taste of the rice, ultimately affecting its quality and food safety. Therefore, the rice cleaning process is crucial for ensuring rice quality and subsequent processing efficiency.

[0003] Currently, various methods have been proposed for destoners used in rice processing in existing technologies. For example, a patent application with publication number "CN212943964U" discloses a destoner for rice processing. In this method, a vibrating motor is connected to an external power source to operate. Rice is fed into the top of the circular opening and dispersed by rotating spiral blades, falling onto the upper filter plate. The vibrating motor causes the entire machine to vibrate, which in turn causes the filter plate to vibrate for sieving. The stones fall onto the left side of the machine and into the interior of the housing. The rice then falls onto the lower filter plate for a second destone removal and finally falls to the bottom of the inner wall of the outer shell. To remove the rice, it can be taken out through the opening on the bottom right side of the outer shell. To remove the stones, the bolts are turned to the left and the housing can be disassembled. However, the vibrating motor causes the entire machine to vibrate, which can easily lead to the detachment of various parts and bolts, creating safety hazards and equipment malfunctions. It can also affect the normal operation of the machine and the destone removal effect.

[0004] Therefore, this utility model provides a destoner for rice processing. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The destoning machine for rice processing of this utility model includes a worktable. A filter plate is connected to the upper end of the worktable by two large springs and two small springs. A feeding plate is inclinedly arranged on the upper end of the worktable. A protective mechanism for protecting materials is installed on the feeding plate. A flow guiding mechanism for guiding materials is installed on both the filter plate and the feeding plate. A fixed plate is fixedly connected to the upper end of the worktable. A rotating rod is rotatably connected to the side wall of the fixed plate. A cam is fixedly connected to the end of the rotating rod away from the fixed plate. A second connecting rod is rotatably connected to the cam. A first connecting rod is rotatably connected to the second connecting rod. A limit sleeve is fixedly connected to the lower end of the filter plate. A push plate is slidably connected inside the limit sleeve. The end of the first connecting rod away from the second connecting rod is rotatably connected to the push plate. A bracket is fixedly connected to the side wall of the worktable. A rotating mechanism for driving the rotating rod to rotate is connected to the bracket through a material conveying mechanism.

[0007] Preferably, the flow guiding mechanism includes two first flow guiding plates and two second flow guiding plates, the first flow guiding plates being fixedly installed on the upper end of the filter plate, and the second flow guiding plates being fixedly installed on the upper end of the feed plate.

[0008] Preferably, the protective mechanism includes two protective plates, which are fixedly installed on the upper end of the feed plate.

[0009] Preferably, the material conveying mechanism includes a conveyor belt, four conveyor support plates are fixedly connected to the upper end of the support, the conveyor belt is rotatably mounted on the side wall of the conveyor support plate, a motor is fixedly connected to the side wall of the conveyor support plate, and the output shaft of the motor is fixedly connected to the conveyor belt.

[0010] Preferably, the rotating mechanism includes a first pulley, a belt, and a second pulley. The first pulley is rotatably mounted on the side wall of the conveyor support plate and is fixedly connected to the conveyor belt via a short rod. The second pulley is rotatably mounted on the side wall of the fixed plate. The rotating rod passes through the rotating fixed plate and is fixedly connected to the second pulley. The belt is disposed between the first pulley and the second pulley.

[0011] Preferably, four support legs are fixedly connected to the lower end of the workbench, and a gravel box is placed at the lower end of the workbench, with the gravel box located below the first guide plate.

[0012] Preferably, a feeding trough is provided on the workbench, and a rice box is placed below the feeding trough.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The rice destoning machine of this utility model drives the rotation of a rotating rod to rotate a cam, which in turn drives the first connecting rod to move up and down reciprocally via a second connecting rod. This causes the push plate to move back and forth within a limiting sleeve. When the push plate pushes the filter plate upward, both the large and small springs are stretched. When the push plate moves downward, the large and small springs instantly return to their original positions. This causes the filter plate to rebound and vibrate, ensuring that only the filter plate vibrates while other parts are unaffected. This effectively avoids overall equipment vibration caused by the vibrating motor, solves the problem of parts and bolts loosening and falling off due to vibration, and improves the stability and safety of equipment operation.

[0015] 2. The rice destoning machine of this utility model drives the first pulley to rotate simultaneously during the operation of the conveyor belt, which in turn drives the second pulley to rotate through the belt. This causes the rotating rod to rotate synchronously, so that the material conveying and vibration occur simultaneously. This avoids the cumbersome operation caused by separate control, ensures a smooth work process, reduces time delays and material accumulation in the connection links, ensures the continuity and stability of production, and improves processing efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the side shaft structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the workbench, feeding trough, feeding plate, second guide plate, fixing plate, rotating rod and limiting sleeve of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of the limiting sleeve, push plate, first connecting rod, second connecting rod and cam of this utility model.

[0021] In the diagram: 1. Workbench; 2. Support frame; 3. Conveyor belt; 4. Conveyor support plate; 5. Motor; 6. Filter plate; 7. First guide plate; 8. Large spring; 9. Small spring; 10. Stone box; 11. Rice box; 12. Support leg; 13. Protective plate; 14. First pulley; 15. Belt; 16. Second pulley; 17. Feed chute; 18. Feed plate; 19. Second guide plate; 20. Fixing plate; 21. Rotating rod; 22. Limiting sleeve; 23. Push plate; 24. First connecting rod; 25. Second connecting rod; 26. Cam. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 4 As shown in the embodiment of this utility model, a destoning machine for rice processing includes a worktable 1. A filter plate 6 is connected to the upper end of the worktable 1 via two large springs 8 and two small springs 9. A feeding plate 18 is inclinedly arranged on the upper end of the worktable 1. A protective mechanism for protecting materials is installed on the feeding plate 18. Both the filter plate 6 and the feeding plate 18 are equipped with guiding mechanisms for guiding the material. A fixing plate 20 is fixedly connected to the upper end of the worktable 1. A rotating rod 21 is rotatably connected to the side wall of the fixing plate 20. A cam 26 is fixedly connected to the end away from the fixed plate 20. A second connecting rod 25 is rotatably connected to the cam 26. A first connecting rod 24 is rotatably connected to the second connecting rod 25. A limit sleeve 22 is fixedly connected to the lower end of the filter plate 6. A push plate 23 is slidably connected inside the limit sleeve 22. The end of the first connecting rod 24 away from the second connecting rod 25 is rotatably connected to the push plate 23. A bracket 2 is fixedly connected to the side wall of the workbench 1. A rotating mechanism that drives the rotating rod 21 to rotate is connected to the bracket 2 through a material conveying mechanism. During operation, the rice raw material is conveyed to the filter plate 6 via the conveyor belt 3. During operation, the conveyor belt 3 drives the first pulley 14 to rotate. The first pulley 14 drives the second pulley 16 to rotate via the belt 15, which in turn causes the rotating rod 21 to rotate synchronously. The rotation of the rotating rod 21 drives the cam 26 to rotate, which in turn causes the cam 26 to drive the first connecting rod 24 to move up and down reciprocally via the second connecting rod 25. The up and down movement of the first connecting rod 24 causes the push plate 23 to move back and forth within the limiting sleeve 22. When the push plate 23 pushes the filter plate 6 upward, the large spring 8 and the small spring 9 are stretched. When the push plate 23 moves downward, the large spring 8 and the small spring 9 instantly reset, causing the filter plate 6 to rebound and vibrate, thereby achieving the screening of rice and stones.

[0025] like Figures 1 to 3 As shown, the flow guiding mechanism includes two first flow guiding plates 7 and two second flow guiding plates 19. The first flow guiding plates 7 are fixedly installed on the upper end of the filter plate 6, and the second flow guiding plates 19 are fixedly installed on the upper end of the feed plate 18. This structure effectively guides the flow direction of the material, ensuring that rice and stones can smoothly enter the rice bin 11 and stone bin 10 respectively, thus improving screening efficiency.

[0026] like Figures 1 to 3 As shown, the protective mechanism includes two protective plates 13, which are fixedly installed on the upper end of the feed plate 18. This structure effectively prevents material from splashing out during conveying and screening, maintaining a clean working environment and reducing material waste.

[0027] like Figure 1 As shown, the conveying mechanism includes a conveyor belt 3. Four conveying support plates 4 are fixedly connected to the upper end of the support 2. The conveyor belt 3 is rotatably mounted on the side wall of the conveying support plate 4. A motor 5 is fixedly connected to the side wall of the conveying support plate 4, and the output shaft of the motor 5 is fixedly connected to the conveyor belt 3. During operation, the motor enables continuous conveying of rice, providing a stable material supply 5 to drive the conveyor belt 3 to rotate for subsequent screening operations.

[0028] like Figure 2 As shown, the rotating mechanism includes a first pulley 14, a belt 15, and a second pulley 16. The first pulley 14 is rotatably mounted on the side wall of the conveyor support plate 4 and is fixedly connected to the conveyor belt 3 via a short rod. The second pulley 16 is rotatably mounted on the side wall of the fixed plate 20. The rotating rod 21 passes through the rotating fixed plate 20 and is fixedly connected to the second pulley 16. The belt 15 is disposed between the first pulley 14 and the second pulley 16. During operation, the first pulley 14 is driven to rotate by the movement of the conveyor belt 3, which in turn drives the second pulley 16 and the rotating rod 21 to rotate synchronously via the belt 15, achieving synchronous material conveying and vibration, and improving screening efficiency.

[0029] like Figures 1 to 2 As shown, four support legs 12 are fixedly connected to the lower end of the workbench 1, and a gravel box 10 is placed on the lower end of the workbench 1, which is located below the first guide plate 7. This structure provides stable support, ensuring the stability of the equipment during operation. Simultaneously, the gravel box 10, placed at the lower end of the workbench 1 and below the first guide plate 7, facilitates the collection of gravel.

[0030] like Figures 1 to 2 As shown, a feeding trough 17 is provided on the workbench 1, and a rice bin 11 is placed below the feeding trough 17. This structure effectively guides the rice smoothly into the rice bin 11, ensuring that the screened rice can be collected in a timely manner and improving production efficiency.

[0031] Working principle: First, the rice raw material is conveyed to the filter plate 6 via the conveyor belt 3. During operation, the conveyor belt 3 drives the first pulley 14 to rotate. The first pulley 14 drives the second pulley 16 to rotate via the belt 15, which in turn causes the rotating rod 21 to rotate synchronously. The rotation of the rotating rod 21 drives the cam 26 to rotate. Since the second connecting rod 25 is rotatably mounted on the protruding position of the cam, the cam 26 drives the first connecting rod 24 to move up and down reciprocally via the second connecting rod 25. The up and down movement of the first connecting rod 24 causes the push plate 23 to move back and forth within the limiting sleeve 22. When the push plate 23 pushes the filter plate 6 upward, the large spring 8 and the small spring 9 are stretched. It should be noted that the initial position of the push plate 23 is slightly above the center of the limiting sleeve 22, which means that the push plate 23 does not contact the filter plate 6 for a period of time when it resets. This causes the large spring 8 and the small spring 9 to reset and cause the filter plate 6 to vibrate.

[0032] After the rice is vibrated and screened on the filter plate 6, the stones fall into the stone box 10 through the holes of the filter plate, while the rice falls above the feed plate 18 along the guide mechanism, and then falls into the rice box under the action of the second guide plate 19 to complete the collection.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A destoner for rice processing, characterized in that: The system includes a workbench (1), on which a filter plate (6) is connected at the upper end via two large springs (8) and two small springs (9). A feeding plate (18) is inclinedly arranged at the upper end of the workbench (1), and a protective mechanism for protecting materials is installed on the feeding plate (18). Both the filter plate (6) and the feeding plate (18) are equipped with a flow guiding mechanism for guiding materials. A fixing plate (20) is fixedly connected to the upper end of the workbench (1), and a rotating rod (21) is rotatably connected to the side wall of the fixing plate (20). The end of the rotating rod (21) away from the fixing plate (20) is fixedly connected to... A cam (26) is connected to the filter plate (6), and a second connecting rod (25) is rotatably connected to the cam (26). A first connecting rod (24) is rotatably connected to the second connecting rod (25). A limit sleeve (22) is fixedly connected to the lower end of the filter plate (6). A push plate (23) is slidably connected inside the limit sleeve (22). The end of the first connecting rod (24) away from the second connecting rod (25) is rotatably connected to the push plate (23). A bracket (2) is fixedly connected to the side wall of the worktable (1). A rotating mechanism that drives the rotating rod (21) to rotate is connected to the bracket (2) through a material conveying mechanism.

2. The destoning machine for rice processing according to claim 1, characterized in that: The flow guiding mechanism includes two first flow guiding plates (7) and two second flow guiding plates (19). The first flow guiding plates (7) are fixedly installed on the upper end of the filter plate (6), and the second flow guiding plates (19) are fixedly installed on the upper end of the feed plate (18).

3. The destoning machine for rice processing according to claim 1, characterized in that: The protective mechanism includes two protective plates (13), which are fixedly installed on the upper end of the feed plate (18).

4. The destoning machine for rice processing according to claim 1, characterized in that: The material conveying mechanism includes a conveyor belt (3), and four conveyor support plates (4) are fixedly connected to the upper end of the support (2). The conveyor belt (3) is rotatably installed on the side wall of the conveyor support plate (4). A motor (5) is fixedly connected to the side wall of the conveyor support plate (4), and the output shaft of the motor (5) is fixedly connected to the conveyor belt (3).

5. A destoning machine for rice processing according to claim 1, characterized in that: The rotating mechanism includes a first pulley (14), a belt (15), and a second pulley (16). The first pulley (14) is rotatably mounted on the side wall of the conveyor support plate (4). The first pulley (14) is fixedly connected to the conveyor belt (3) via a short rod. The second pulley (16) is rotatably mounted on the side wall of the fixed plate (20). The rotating rod (21) passes through the rotating fixed plate (20) and is fixedly connected to the second pulley (16). The belt (15) is disposed between the first pulley (14) and the second pulley (16).

6. A destoning machine for rice processing according to claim 1, characterized in that: The workbench (1) is fixedly connected to four support legs (12) at its lower end. A stone box (10) is placed at the lower end of the workbench (1) and the stone box (10) is located below the first guide plate (7).

7. A destoning machine for rice processing according to claim 1, characterized in that: The workbench (1) has a feeding trough (17) and a rice box (11) is placed below the feeding trough (17).

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