A grain hulling device

Abstract

A kind of grain husking device, including shell, the husking component for being arranged in shell for the husking of grain and the material outlet for being arranged in the top of shell for the storage of grain.Husking component includes the connecting cylinder being vertically rotated in the top surface of shell, the first motor being arranged in the top surface of shell, the transmission part being connected between the first motor and connecting cylinder, the first grinding disc being arranged in the bottom surface of connecting cylinder, the feed inlet corresponding with the inner diameter of connecting cylinder is opened in the first grinding disc, and feed inlet is communicated with connecting cylinder, the second grinding disc being arranged in shell, and the second grinding disc is below the first grinding disc.The flow guide plate and rubbing husk component are sequentially arranged in the inside of shell below the second grinding disc.The grain after husking component can be rubbed and extruded again by setting rubbing husk component, so that the shell on grain is separated more cleanly and completely, the number and time of manually adding grain into husking device again are saved, and work efficiency is improved to save manpower.

Description

Technical Field

[0001] This utility model belongs to the field of grain processing, and in particular relates to a grain dehulling device. Background Technology

[0002] Grain hulling refers to removing the hard outer shell or bran of grains to obtain the endosperm or kernels inside. For example, rice is hulled to obtain rice, and wheat is hulled to obtain wheat kernels. The grain hulling process is very important in grain processing because it not only affects the taste and nutritional value of the grains but also relates to their storage and transportation. Current grain hulling methods use a grinding disc to squeeze and separate the outer shell of the grain, thus peeling off the husk. However, the outer shell is not completely removed, requiring manual repeated feeding of grains into the hulling device, which is cumbersome and inefficient. Utility Model Content

[0003] The purpose of this invention is to provide a grain dehulling device to solve the technical problems mentioned in the background section.

[0004] To achieve the above objectives, the specific technical solution of this utility model for a grain dehulling device is as follows:

[0005] A grain dehulling device includes a housing, a dehulling assembly disposed within the housing for dehulling grain, and a discharge section disposed at the top of the housing for storing grain. The dehulling assembly includes a connecting cylinder vertically rotating on the top surface of the housing, a first motor disposed on the top surface of the housing and connected to the connecting cylinder via a transmission mechanism, a first grinding disc disposed on the bottom surface of the connecting cylinder with a feed inlet corresponding to the inner diameter of the connecting cylinder and communicating with the connecting cylinder, and a second grinding disc disposed within the housing, located below the first grinding disc. Inside the housing, below the second grinding disc, are sequentially arranged a guide plate and a hulling assembly, the guide plate being inclined within the housing. The hulling assembly includes a first grinding plate inclined within the housing, a mounting frame disposed within the housing, a second grinding plate slidably disposed on the mounting frame and engaging with the first grinding plate, and the mounting frame and the second grinding plate being connected via a reciprocating mechanism. A second fan is disposed on one side of the housing below the hulling assembly, and a second slag discharge port is opened on the side wall of the housing corresponding to the second fan.

[0006] Furthermore, the reciprocating device includes a second motor mounted on a mounting frame. The output end of the second motor is provided with a disc, and the disc is provided with an eccentric shaft. A mounting frame is provided on the top surface of the second grinding plate, and the eccentric shaft is inserted into the mounting frame for engagement.

[0007] Furthermore, a protective plate is provided at the end of the second grinding plate near the second fan.

[0008] Furthermore, the feeding section includes a hopper mounted on the top surface of the shell via a support column. The bottom surface of the hopper is connected to a feeding channel, and the outlet of the feeding channel is corresponding to the inlet of the connecting cylinder. An interval feeding device is provided on the feeding channel, and the interval feeding device includes a rotating shaft that is laterally rotatable on the feeding channel, a third motor located on the outer wall of the feeding channel, and the third motor being connected to the rotating shaft. Multiple partitions are distributed around the axis of the rotating shaft within the feeding channel.

[0009] Furthermore, the transmission unit includes a first gear disposed on the output end of the first motor and a second gear disposed on the connecting cylinder, wherein the first gear and the second gear mesh.

[0010] Furthermore, a material collection hood is provided inside the shell between the guide plate and the second grinding disc, and a first fan is provided on the side wall of the shell between the material collection hood and the guide plate, and a first slag discharge port is opened on the side wall of the shell corresponding to the first fan.

[0011] Furthermore, both ends of the mounting bracket are provided with connecting plates, and the housing is provided with sliding grooves for sliding on the corresponding positions of the connecting plates. An electric push rod is provided on the outer wall of the housing corresponding to the positions of the connecting plates, and the telescopic end of the electric push rod is connected to the connecting plate.

[0012] Furthermore, a fixing ring is fitted on the connecting cylinder, and the connecting cylinder and the feed port of the first grinding disc are slidably connected. Multiple limiting pins are distributed around the axis of the fixing ring, and the bottom end of the limiting pin is connected to the first grinding disc. A spring is fitted on the limiting pin between the fixing ring and the first grinding disc.

[0013] The grain dehulling device of this utility model has the following advantages:

[0014] 1. By setting up a hulling component, this utility model can rub and squeeze the grain again after it has passed through the dehulling component, so that the outer shell of the grain is removed more cleanly and thoroughly, saving the number of times and time that the grain is added back into the dehulling device, thus improving work efficiency and saving manpower.

[0015] 2. By setting a first fan, this utility model can blow away the outer skin of the grain after it has passed through the dehulling component. At the same time, by setting a second fan, it can blow away the grain after it has passed through the hulling component again, so as to better reduce the residue of impurities in the grain and improve the practicality of the dehulling device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a grain dehulling device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the first slag discharge port and the second fan structure of this utility model;

[0018] Figure 3This is a schematic diagram of the shell removal component of this utility model;

[0019] Figure 4 This is a schematic diagram of the reciprocating mechanism and mounting frame of this utility model;

[0020] Figure 5 This is a schematic diagram of the interval feeding device of this utility model.

[0021] Explanation of markings in the diagram:

[0022] 1. Shell; 2. Shelling assembly; 21. Connecting cylinder; 22. First grinding disc; 23. Second grinding disc; 24. First motor; 3. Transmission unit; 31. First gear; 32. Second gear; 4. First fan; 5. First slag discharge port; 6. Collection hood; 7. Guide plate; 8. Shell rubbing assembly; 81. First grinding plate; 82. Second grinding plate; 83. Reciprocating device; 831. Second motor; 832. Disc; 833. Eccentric shaft; 834. Mounting frame; 84. Mounting bracket; 841. Horizontal plate; 842. Vertical plate; 843. Limiting strip; 85. Guard plate; 9. Second fan; 10. Second slag discharge port; 11. Hopper; 12. Discharge channel; 13. Third motor; 14. Rotating shaft; 15. Partition plate; 16. Electric push rod; 17. Connecting plate; 18. Fixing ring; 19. Limiting pin; 20. Spring. Detailed Implementation

[0023] To better understand the purpose, structure, and function of this utility model, a grain dehulling device of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 5 As shown, this utility model discloses a grain dehulling device, comprising a housing 1, a dehulling component 2 disposed within the housing 1 for dehulling grains, and a feeding section disposed at the top of the housing 1 for storing grains. The housing 1 is a vertically arranged rectangle with an open bottom. Grains are added to the dehulling component 2 through the feeding section and dehulled by the dehulling component 2. The dehulled grains then fall directly from the bottom of the housing 1.

[0025] Specifically, the feeding section includes a hopper 11 mounted on the top surface of the housing 1 via a support column. The bottom surface of the hopper 11 is connected to a feeding channel 12, which consists of a conical shell (larger at the top, smaller at the bottom) connected to the bottom surface of the hopper 11 and a vertical rectangular tube connected to the opening at the bottom of the conical shell. Grains are stored in the hopper 11 and then fed into the hulling device through the conical shell and rectangular tube. This saves the time and effort of repeatedly adding grains to the hulling assembly 2 manually. To prevent grain accumulation in the hulling assembly 2, an intermittent feeding device is provided on the feeding channel 12. This intermittent feeding device includes a rotating shaft 14 that rotates laterally on the feeding channel 12, passing through the feeding channel 12. A third motor 13, connected to an external power source, is located on the outer wall of the feeding channel 12 and is connected to the rotating shaft 14. Simultaneously, multiple partitions 15 are distributed around the axis of the rotating shaft 14 within the feeding channel 12, and these partitions 15 cooperate with the feeding channel 12. When feeding, the third motor 13 is started, which drives the rotating shaft 14 to rotate. The partition 15 set on the rotating shaft 14 will also rotate. The grain that enters the gap between the adjacent partitions 15 will be fed into the dehulling component 2 intermittently. This not only prevents the grain from accumulating in the dehulling component 2, but also allows the grain to be dehulled better in the dehulling component 2.

[0026] like Figure 3 As shown, the dehulling assembly 2 for dehulling grains includes a connecting cylinder 21 vertically rotatably mounted on the top surface of the housing 1. The upper end of the connecting cylinder 21 extends upwards towards the housing 1, and the lower end extends inwards towards the interior of the housing 1. The outlet of the feeding channel 12 corresponds to the inlet of the connecting cylinder 21. A first motor 24 connected to an external power source is also provided on the top surface of the housing 1. The first motor 24 is connected to the connecting cylinder 21 via a transmission part 3. A first grinding disc 22 is also provided on the bottom surface of the connecting cylinder 21, and a feeding port corresponding to the inner diameter of the connecting cylinder 21 is opened on the first grinding disc 22, which communicates with the connecting cylinder 21. A second grinding disc 23 is also provided inside the housing 1 below the first grinding disc 22. When the intermittent feeding device starts working, the first motor 24 in the dehulling assembly 2 is activated. The first motor 24 drives the connecting cylinder 21 to rotate through the transmission part 3, and the first grinding disc 22 located at the bottom of the connecting cylinder 21 also rotates accordingly. The grain that enters the connecting cylinder 21 from the feeding channel 12 will enter the gap between the first grinding disc 22 and the second grinding disc 23 through the feed inlet of the first grinding disc 22. Through the friction of the first grinding disc 22 and the second grinding disc 23 on the grain, the outer shell of the grain is squeezed and torn, so that the grain is dehulled. Figure 1As shown, the transmission part 3 for connecting the first motor 24 and the connecting cylinder 21 includes a first gear 31 disposed on the output end of the first motor 24 and a second gear 32 disposed on the connecting cylinder 21. The first gear 31 and the second gear 32 mesh. After the first motor 24 drives the first gear 31 to rotate, the second gear 32 meshing with it will also rotate, ultimately achieving the purpose of the second gear 32 driving the connecting cylinder 21.

[0027] To enable the first grinding disc 22 and the second grinding disc 23 to dehull grains of different sizes, a fixing ring 18 is fitted onto the connecting cylinder 21. Multiple limiting pins 19 are distributed around the fixing ring 18 along its axis, and the bottom end of each limiting pin 19 is connected to the first grinding disc 22. A spring 20 is fitted onto each limiting pin 19 between the fixing ring 18 and the first grinding disc 22. The feed inlet of the connecting cylinder 21 and the first grinding disc 22 is slidably connected. When the grains entering the gap between the first grinding disc 22 and the second grinding disc 23 are of different sizes, the first grinding disc 22 will adjust up and down under the action of the spring 20 via the limiting pins 19, thus enabling the dehulling assembly 2 to adapt to the dehulling of grains of different sizes and improving the practicality of this dehulling device.

[0028] Preferably, a guide plate 7 and a hulling assembly 8 are sequentially arranged inside the housing 1 below the second grinding disc 23. The guide plate 7 is inclined inside the housing 1, and a gap is left between the lowest end of the guide plate 7 and the interior of the housing 1 for the grain to fall into the hulling assembly 8. The hulling assembly 8 performs a second hulling process on the grain to improve the quality of grain hulling. Specifically, the hulling assembly 8 includes a first grinding plate 81 inclined inside the housing 1, a mounting bracket 84 inside the housing 1, and a second grinding plate 82 slidably mounted on the mounting bracket 84. The second grinding plate 82 cooperates with the first grinding plate 81, and both are inclined in the same direction. The mounting bracket 84 and the second grinding plate 82 are connected by a reciprocating device 83. The falling grains enter the gap between the first grinding plate 81 and the second grinding plate 82. The reciprocating device 83 drives the second grinding plate 82 to slide back and forth on the mounting frame 84, thus re-hulling the grains between the first grinding plate 81 and the second grinding plate 82, thereby reducing the residue of the grain husks. To prevent the material from crossing the second grinding plate 82 and sliding off its top surface, a guard plate 85 is provided at the end of the second grinding plate 82 near the second fan 9. The guard plate 85 can block the grains falling towards the first grinding plate 81.

[0029] like Figure 4As shown, the reciprocating device 83 includes a second motor 831 mounted on a mounting frame 84 and connected to an external power supply. The output end of the second motor 831 has a disc 832, and an eccentric shaft 833 is mounted on the disc 832. A mounting frame 834 is located on the top surface of the second grinding plate 82, and the eccentric shaft 833 is inserted into the mounting frame 834 for engagement. When the second motor 831 drives the disc 832 to rotate, the eccentric shaft 833 mounted on the disc 832 will rotate around the axis of the disc 832. The eccentric shaft 833, in conjunction with the mounting frame 834 on the second grinding plate 82, enables the second grinding plate 82 to reciprocate on the mounting frame 84, making operation simple and convenient. The mounting frame 84 consists of a horizontal plate 841 set on the inner wall of the housing 1 and vertical plates 842 set on the bottom surfaces at both ends of the horizontal plate 841. Two limiting strips 843 are respectively provided on the inner walls of the two vertical plates 842. The second grinding plate 82 can be inserted between the two limiting strips 843 to achieve the purpose of sliding the second grinding plate 82 on the mounting frame 84.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a collection hood 6 is located inside the housing 1 between the guide plate 7 and the second grinding disc 23. A first fan 4 is located on the side wall of the housing 1 between the collection hood 6 and the guide plate 7, and a first slag discharge port 5 is opened on the side wall of the housing 1 corresponding to the first fan 4. Simultaneously, a second fan 9 is located on one side of the housing 1 below the hulling assembly 8, and a second slag discharge port 10 is opened on the side wall of the housing 1 corresponding to the second fan 9. When the grain is hulled by the dehulling assembly 2, the hulled grain enters the collection hood 6 and falls through it. During the fall of the grain from the collection hood 6, the air force generated by the first fan 4 blows out impurities and husks from the grain through the first slag discharge port 5, reducing the residue of impurities in the grain. When the grain passes through the hulling assembly 8 again and falls, the air force generated by the second fan 9 blows away any remaining impurities from the falling grain through the second slag discharge port 10, effectively improving the quality of grain hulling and enhancing the practicality of this dehulling device.

[0031] As a further improvement, a connecting plate 17 is provided at both ends of the mounting frame 84, and a vertical sliding groove is provided on the housing 1 corresponding to the position of the connecting plate 17 for sliding. An electric push rod 16 connected to an external power supply is provided on the outer wall of the housing 1 corresponding to the position of the connecting plate 17, and the telescopic end of the electric push rod 16 is connected to the connecting plate 17. When the electric push rod 16 is activated, the electric push rod 16 can drive the mounting frame 84 to move up and down inside the housing 1 through the connecting plate 17, thereby changing the distance between the first grinding plate 81 and the second grinding plate 82 to adapt to the hulling process of grains of different sizes, further improving the practicality of this hulling device.

[0032] Instructions for use: Place the grains into the feeding section, and then simultaneously start the intermittent feeding device. The intermittent feeding device feeds the grains from the feeding section into the dehulling component 2. After being processed, the grains in the dehulling component 2 will be blown away by the first fan 4 through the first slag discharge port 5 during their fall. The separated grains will then fall into the hulling component 8 for dehulling again. During the fall of the grains after dehulling again, the wind generated by the second fan 9 will discharge the remaining impurities in the grains through the second slag discharge port 10.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A grain dehulling device, characterized in that: It includes a shell (1), a dehulling assembly (2) disposed inside the shell (1) for dehulling grains, and a feeding section disposed at the top of the shell (1) for storing grains; The shell removal assembly (2) includes a connecting cylinder (21) that is vertically rotatably disposed on the top surface of the housing (1), a first motor (24) disposed on the top surface of the housing (1), the first motor (24) and the connecting cylinder (21) being connected by a transmission part (3), a first grinding disc (22) disposed on the bottom surface of the connecting cylinder (21), the first grinding disc (22) having a feed port corresponding to the inner diameter of the connecting cylinder (21) and the feed port communicating with the connecting cylinder (21), and a second grinding disc (23) disposed inside the housing (1), the second grinding disc (23) being located below the first grinding disc (22); Inside the housing (1), below the second grinding disc (23), there are sequentially arranged a guide plate (7) and a rubbing assembly (8), with the guide plate (7) being inclined inside the housing (1); The shell-rubbing assembly (8) includes a first grinding plate (81) inclined inside the shell (1), a mounting bracket (84) inside the shell (1), a second grinding plate (82) slidably mounted on the mounting bracket (84), and the second grinding plate (82) cooperates with the first grinding plate (81), and the mounting bracket (84) and the second grinding plate (82) are connected by a reciprocating device (83); A second fan (9) is provided on one side of the housing (1) below the shell rubbing assembly (8), and a second slag discharge port (10) is opened on the side wall of the housing (1) corresponding to the second fan (9).

2. The grain dehulling device according to claim 1, characterized in that: The reciprocating device (83) includes a second motor (831) mounted on a mounting frame (84). The output end of the second motor (831) is provided with a disc (832), and an eccentric shaft (833) is provided on the disc (832). A mounting frame (834) is provided on the top surface of the second grinding plate (82), and the eccentric shaft (833) is inserted into the mounting frame (834) for cooperation.

3. A grain dehulling device according to claim 2, characterized in that: The second grinding plate (82) is provided with a guard plate (85) at the end near the second fan (9).

4. A grain dehulling device according to any one of claims 1 to 3, characterized in that: The material discharge section includes a hopper (11) mounted on the top surface of the shell (1) via a support column. The bottom surface of the hopper (11) is connected to a discharge channel (12), and the outlet of the discharge channel (12) is provided corresponding to the inlet of the connecting cylinder (21). An interval feeding device is provided on the feeding channel (12), and the interval feeding device includes a rotating shaft (14) that is laterally rotatable on the feeding channel (12), a third motor (13) located on the outer wall of the feeding channel (12), and the third motor (13) is connected to the rotating shaft (14). Multiple partitions (15) are distributed on the rotating shaft (14) around the axis of the rotating shaft (14) inside the feeding channel (12).

5. A grain dehulling device according to claim 1, characterized in that; The transmission unit (3) includes a first gear (31) on the output end of the first motor (24) and a second gear (32) on the connecting cylinder (21), and the first gear (31) and the second gear (32) mesh with each other.

6. A grain dehulling device according to claim 5, characterized in that; The housing (1) is provided with a material collection hood (6) located between the guide plate (7) and the second grinding disc (23) inside, and a first fan (4) is provided on the side wall of the housing (1) between the material collection hood (6) and the guide plate (7), and a first slag discharge port (5) is opened on the side wall of the housing (1) corresponding to the first fan (4).

7. A grain dehulling device according to claim 5, characterized in that; The mounting bracket (84) has connecting plates (17) at both ends, and the housing (1) has a sliding groove for sliding on the corresponding position of the connecting plate (17), and an electric push rod (16) is provided on the outer wall of the housing (1) at the corresponding position of the connecting plate (17), and the telescopic end of the electric push rod (16) is connected to the connecting plate (17).

8. A grain husking device according to claim 7, characterized in that ； A fixing ring (18) is fitted on the connecting cylinder (21), and the feed inlet of the connecting cylinder (21) and the first grinding disc (22) are slidably connected. Multiple limiting pins (19) are distributed around the axis of the fixing ring (18), and the bottom end of the limiting pin (19) is connected to the first grinding disc (22). A spring (20) is fitted on the limiting pin (19) between the fixing ring (18) and the first grinding disc (22).

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