Soaking and shelling device for rice processing

Abstract

The soaking and shelling device for rice processing comprises a box body, a partition plate is arranged in the box body, a through opening is formed in the partition plate, sliding grooves are formed in the left side and the right side of the through opening respectively, and pneumatic rods are fixedly connected to the inner walls of the opposite sides of the two sliding grooves respectively. And the telescopic ends of the two pneumatic rods are fixedly connected with sealing plates, a V-shaped net is arranged below the partition plate, the rear side space of the box body communicates with a drainage pipe, and a hulling assembly is arranged in the through opening. According to the device, rice can be separated from rice husks after the rice is soaked and husked, the separated rice can be conveniently discharged, meanwhile, through arrangement of a pushing assembly, it can be ensured that all the soaked rice falls off from a through opening, and through arrangement of a V-shaped net and a vibration motor, the separation effect on the rice and the rice husks can be improved.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a soaking and dehulling device for rice processing. Background Technology

[0002] In the rice processing industry, soaking and hulling are crucial basic steps. Soaking allows the paddy to absorb an appropriate amount of water, softening the husk and reducing mechanical damage during the subsequent hulling process, thereby improving the quality and yield of the rice. Hulling, on the other hand, removes the outer shell of the paddy to obtain brown rice that can be further processed.

[0003] Existing rice soaking and dehulling devices often have many problems. On the one hand, after soaking and dehulling, the separation effect between rice and husk is not good, which increases the difficulty of subsequent screening work, not only consuming a lot of manpower and time costs, but also potentially affecting the purity and quality of rice.

[0004] On the other hand, existing equipment also has shortcomings in the discharge stage. The discharge process is not convenient enough, and rice residue may remain, affecting processing efficiency and equipment utilization. The discharge port design of some devices is unreasonable, making it easy for rice to clog the discharge, requiring manual cleaning and unblocking, which increases labor intensity and production costs.

[0005] Therefore, it is necessary to design a rice processing soaking and dehulling device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rice soaking and dehulling device. This device can separate rice from husks after soaking and dehulling, and facilitates the discharge of the separated rice. Furthermore, the push component ensures that all soaked rice falls through the opening, and the V-shaped mesh and vibrating motor enhance the separation effect between rice and husks.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A rice soaking and dehulling device includes a box body, a partition inside the box body, an opening on the partition, sliding grooves on both sides of the opening, pneumatic rods fixedly connected to the inner walls of the opposite sides of the two sliding grooves, and a sealing plate fixedly connected to the telescopic ends of the two pneumatic rods. A V-shaped mesh is provided below the partition, a drain pipe is connected to the rear space of the box body, and a dehulling component is provided inside the opening.

[0009] Preferably, the shelling assembly includes two rubber rollers disposed within the opening, with the left and right sides of the rotating shafts of the two rubber rollers extending to the outside. Gears are fixedly connected to the left side of each of the two rotating shafts, and the two gears mesh with each other. A drive motor is installed on the right side of the housing, and the drive motor is fixedly connected to the rotating shaft located at the rear.

[0010] Preferably, the inner walls of the front and rear sides of the box are fixedly connected with fixing blocks, and the two fixing blocks are elastically connected to the adjacent sides of the V-shaped mesh through multiple springs. A vibration motor is installed at the lower end of the V-shaped mesh.

[0011] Preferably, the box body is provided with discharge ports on both the front and rear sides, and sealing plates are provided on the opposite sides of the two discharge ports. The two sealing plates are connected to the box body by fixing bolts, and a sealing ring is provided between the sealing plates and the box body.

[0012] Preferably, the inner walls of the left and right sides of the housing are rotatably connected to a lead screw, and two push rods are threaded onto the lead screw. The opposite sides of the two push rods are arc surfaces. The inner walls of the left and right sides of the housing are fixedly connected to a guide rod, which passes through the two push rods. The right side of the lead screw extends to the outside. The lead screw is connected to the rotating shaft located at the rear side through a transmission assembly.

[0013] Preferably, the transmission assembly includes sprockets mounted on a lead screw and a rotating shaft, and the two sprockets are connected by a chain drive.

[0014] Compared with existing technologies, the advantages of this device are:

[0015] 1. Compared with existing technologies, this device can more efficiently separate rice from husks after soaking and dehulling. By setting up a V-shaped mesh and a vibrating motor, the vibration principle is used to make the husks and rice move in different states on the V-shaped mesh. The husks fall more easily through the mesh, thereby improving the separation effect. Compared with the traditional simple screen separation method, the separation accuracy is higher, and the amount of husk residue in the rice can be effectively reduced.

[0016] 2. Compared with existing technologies, this device facilitates the discharge of separated rice. Discharge ports are located on both the front and rear sides of the casing, equipped with sealing plates and sealing rings, connected by fixing bolts. This design ensures the device's sealing during operation and allows for easy opening of the sealing plates during discharge, making the discharge process smoother. This avoids the problems of easy clogging of the discharge ports and inconvenient discharge found in existing devices, improving production efficiency and reducing the labor intensity of manual cleaning.

[0017] 3. Compared with existing technologies, this device, through the setting of the push rod, ensures that all soaked rice falls through the opening. The lead screw and the rotating shaft located at the rear are connected by a transmission assembly. During the dehulling process, the rotation of the lead screw drives the push rod to move. Its arc-shaped design can push the rice remaining near the opening towards the opening, ensuring that all rice enters the dehulling assembly for dehulling. Compared with existing technologies where rice residue cannot be dehulled, this greatly improves the integrity of dehulling and production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a rice soaking and dehulling device proposed in this utility model;

[0019] Figure 2 for Figure 1 A structural diagram from another perspective;

[0020] Figure 3 for Figure 1 Front half section view;

[0021] Figure 4 for Figure 1 Left half section view.

[0022] In the diagram: 1. Housing, 2. Drive motor, 3. Sealing plate, 4. Fixing bolt, 5. Lead screw, 6. Guide rod, 7. Push rod, 8. Drain pipe, 9. Transmission assembly, 10. Gear, 11. Partition, 12. Pneumatic rod, 13. Sealing plate, 14. V-shaped mesh, 15. Rubber roller, 16. Fixing block, 17. Spring, 18. Vibration motor. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4A rice soaking and dehulling device includes a housing 1, inside which is a partition 11. The partition 11 has an opening, and sliding grooves are provided on both sides of the opening. Pneumatic rods 12 are fixedly connected to the inner walls of the opposite sides of the two sliding grooves. A closing plate 13 is fixedly connected to the telescopic ends of the two pneumatic rods 12. The pneumatic rods 12 can control the movement of the closing plates 13 by telescoping. When the pneumatic rods 12 extend, the closing plates 13 move closer together to close the opening, preventing rice grains from falling through the opening during soaking. When the pneumatic rods 12 retract, the closing plates 13 move to both sides, opening the opening and allowing the rice grains to enter the dehulling assembly. A V-shaped mesh 14 is provided below the partition 11. The shape of the V-shaped mesh 14 facilitates the separation of rice husks and rice on its surface, making it easier for the rice husks to fall through the mesh of the V-shaped mesh 14. The rice remains on the mesh surface, with the tip of the V-shaped mesh 14 pointing upwards and the front and back sides of the V-shaped mesh 14 being sloping. This allows the rice to accumulate on the front and back sides, enabling water and rice husks to pass stably through the mesh openings of the V-shaped mesh 14, preventing mesh blockage and affecting separation efficiency. The rear space of the box 1 is connected to a drain pipe 8, with a hulling component inside the opening. Both the front and back sides of the box 1 have discharge ports, and the opposite sides of the two discharge ports are equipped with sealing plates 3. The two sealing plates 3 are connected to the box 1 by fixing bolts 4, and a sealing ring is provided between the sealing plates 3 and the box 1. The sealing plates 3 are connected to the box 1 by fixing bolts 4, facilitating disassembly and installation. When the device is working, the sealing ring can effectively prevent dust, impurities, etc. from entering the interior of the box 1, and also prevent internal material leakage, ensuring the sealing and normal operation of the device.

[0025] The dehulling assembly includes two rubber rollers 15 disposed inside the opening. The left and right sides of the rotating shafts of the two rubber rollers 15 extend to the outside. Gears 10 are fixedly connected to the left side of each of the two rotating shafts, and the two gears 10 mesh with each other. A drive motor 2 is installed on the right side of the housing 1. The drive motor 2 is fixedly connected to the rotating shaft located at the rear. After the drive motor 2 is started, it drives the rotating shaft at the rear to rotate. Since the two gears 10 mesh with each other, the two rubber rollers 15 rotate in opposite directions, thereby applying pressure to the rice passing through the opening to achieve the purpose of dehulling. The material of the rubber rollers 15 has a certain degree of elasticity, which can reduce damage to the rice during the dehulling process.

[0026] The inner walls of the front and rear sides of the box 1 are fixedly connected with fixing blocks 16. The two fixing blocks 16 are elastically connected to the adjacent sides of the V-shaped mesh 14 through multiple springs 17. The lower end of the V-shaped mesh 14 is equipped with a vibration motor 18. When the vibration motor 18 is working, it will drive the V-shaped mesh 14 to vibrate. The springs 17 play the role of buffering and enhancing the vibration effect, so that the husks and rice produce different motion states on the V-shaped mesh 14, which further improves the separation efficiency and separation effect of the husks and rice.

[0027] The inner walls of the left and right sides of the housing 1 are rotatably connected to a lead screw 5. Two push rods 7 are threaded onto the lead screw 5. The opposite sides of the two push rods 7 are arc-shaped. The inner walls of the left and right sides of the housing 1 are fixedly connected to a guide rod 6. The guide rod 6 passes through the two push rods 7. The right side of the lead screw 5 extends to the outside. The lead screw 5 is connected to the rotating shaft located at the rear side through a transmission assembly 9. The transmission assembly 9 includes sprockets set on the lead screw 5 and the rotating shaft. The two sprockets are connected by a chain drive. The lead screw 5 has two sets of reciprocating thread layers. When the rotating shaft at the rear side rotates, the transmission assembly 9 drives the lead screw 5 to rotate. The rotation of the lead screw 5 causes the two push rods 7 to move relative to or away from each other along the guide rod 6. Since the opposite sides of the push rods 7 are arc-shaped, they can push the remaining rice on the partition 11 towards the opening during the movement, ensuring that all soaked rice can enter the hulling assembly for hulling, avoiding rice residue, and improving the integrity of hulling and production efficiency.

[0028] The functional principle of this invention can be explained through the following operation: Rice grains are placed in the space above the partition 11 of the box 1 for soaking. At this time, two pneumatic rods 12 are extended, causing the closing plate 13 to move closer together, sealing the opening and preventing the rice grains from falling during soaking. During soaking, the rice grains absorb water, and the husks gradually soften, preparing for subsequent hulling.

[0029] After soaking, the two pneumatic rods 12 are retracted, causing the sealing plate 13 to move to opposite sides and open the opening. The drive motor 2 is then started, causing the shaft of the rear rubber roller 15 to rotate. Because the gears 10 on the left side of the shafts of the two rubber rollers 15 mesh with each other, the two rubber rollers 15 rotate in opposite directions. The softened rice falls through the opening and passes between the two relatively rotating rubber rollers 15. The rubber rollers 15 apply pressure to the rice, separating the husk from the rice, completing the hulling operation.

[0030] During the hulling process, since the lead screw 5 is connected to the rear rotating shaft via the transmission assembly 9 (sprocket and chain), when the drive motor 2 drives the rear rotating shaft to rotate, the lead screw 5 will also rotate. The two push rods 7 threaded on the lead screw 5 will move relative to each other or away from each other along the guide rod 6 under the action of the rotation of the lead screw 5. The opposite sides of the two push rods 7 are arc surfaces, which can push the remaining rice on the partition 11 towards the opening during the movement, ensuring that all the soaked rice falls from the opening for hulling and avoiding rice residue.

[0031] The hulled rice and husk mixture falls onto the V-shaped mesh 14. The vibration motor 18 is activated, causing the V-shaped mesh 14 to vibrate. Due to the different shapes and weights of the rice and husks, the husks fall more easily through the mesh of the V-shaped mesh 14 under vibration, while the rice remains on the mesh, effectively separating the rice from the husks. Simultaneously, because the pointed end of the V-shaped mesh 14 faces upwards and its front and back sides are sloping, the rice accumulates on the front and back sides of the mesh.

[0032] Water generated during soaking and hulling can be drained through a drain pipe 8 connected to the rear space of the box 1. After the rice and husks are separated, unscrew the fixing bolts 4, open the sealing plate 3, and the rice on the V-shaped mesh 14 can be discharged from the discharge ports on the front and rear sides of the box 1.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rice processing soaking and dehulling device, comprising a housing (1), characterized in that: The box (1) is provided with a partition (11), the partition (11) is provided with an opening, the left and right sides of the opening are provided with sliding grooves, the inner walls of the opposite sides of the two sliding grooves are fixedly connected with pneumatic rods (12), the telescopic ends of the two pneumatic rods (12) are fixedly connected with a sealing plate (13), a V-shaped mesh (14) is provided below the partition (11), the rear space of the box (1) is connected to a drain pipe (8), and a shell removal assembly is provided in the opening; The shelling assembly includes two rubber rollers (15) disposed in the opening. The left and right sides of the rotating shafts of the two rubber rollers (15) extend to the outside. The left side of the two rotating shafts is fixedly connected to a gear (10). The two gears (10) mesh with each other. A drive motor (2) is installed on the right side of the housing (1). The drive motor (2) is fixedly connected to the rotating shaft located on the rear side.

2. The rice soaking and dehulling device according to claim 1, characterized in that: The inner walls of the front and rear sides of the box (1) are fixedly connected with fixing blocks (16). The two fixing blocks (16) are elastically connected to the adjacent sides of the V-shaped mesh (14) by multiple springs (17). A vibration motor (18) is installed at the lower end of the V-shaped mesh (14).

3. The rice soaking and dehulling device according to claim 1, characterized in that: The box (1) has discharge ports on both the front and rear sides. Each of the two discharge ports has a sealing plate (3) on its opposite side. The two sealing plates (3) are connected to the box (1) by fixing bolts (4). A sealing ring is provided between the sealing plate (3) and the box (1).

4. The rice soaking and dehulling device according to claim 1, characterized in that: The inner walls of the left and right sides of the housing (1) are rotatably connected to a lead screw (5). Two push rods (7) are threaded onto the lead screw (5). The opposite sides of the two push rods (7) are arc surfaces. The inner walls of the left and right sides of the housing (1) are fixedly connected to a guide rod (6). The guide rod (6) passes through the two push rods (7). The right side of the lead screw (5) extends to the outside. The lead screw (5) is connected to the rotating shaft located on the rear side through a transmission assembly (9).

5. The rice processing soaking and dehulling device according to claim 4, characterized in that: The transmission assembly (9) includes sprockets mounted on the lead screw (5) and the shaft, and the two sprockets are connected by a chain drive.

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