Rice sieve device for processing high-nutrition grains

Abstract

This application relates to a rice sieve device for processing high-nutrition grains, belonging to the field of grain screening technology. The rice sieve device includes a frame, on which a feeding hopper and an elevator are mounted; multiple sieve plates are mounted on the frame, with different aperture specifications and arranged along the height direction, and each sieve plate has multiple screening sections along its length direction; multiple collection hoppers are fixed to the frame, and each collection hopper has a conveyor belt below it; multiple vibrating devices are mounted below the sieve plates along the length direction of the sieve plates; and a self-switching mechanism is located between the frame and the vibrating devices, used to separate or connect the sieve plates and the vibrating devices, as well as to drive the sieve plates to move laterally and lock their position. This application reduces the space requirement of purchasing multiple rice sieve devices, reduces the floor space occupied, improves space utilization, and simultaneously achieves the effect of automatic and rapid switching of sieve plates.

Description

Technical Field

[0001] This application relates to the field of grain screening technology, and in particular to a rice sieve device for processing high-nutrient grains. Background Technology

[0002] Rice sieves are key pieces of equipment in grain processing. Their main function is to efficiently classify grains according to particle size using precise physical sieving technology, thereby achieving refined grain processing, improving processing efficiency, ensuring the quality of the final product, and meeting market demands for grain products with different tastes and uses. In practical applications, smaller grain particles can be used in specific food processing, such as rice noodles or grain beverages, while larger grain particles are more suitable for direct consumption or as cooking ingredients, thus improving grain utilization and meeting the diverse taste and nutritional needs of consumers.

[0003] Currently, rice sieving devices mainly consist of a frame, a hopper for controlling the feeding speed and amount of grain, a sieve plate located below the hopper outlet for sieving through different apertures, and a vibrating component (such as a vibrating motor or eccentric rotary structure) for driving the sieve plate to vibrate and improve sieving efficiency. During sieving, the vibrating component causes the sieve plate to vibrate at high frequency, so that the grain particles are evenly distributed on the sieve plate and pass through the sieve holes under the action of gravity. Particles of different sizes are sieved according to the size of the sieve plate aperture. However, rice sieving devices can only sieve one type of grain. If other types of grain need to be sieved, the original sieve plate must be removed and replaced with a sieve plate with a different aperture. However, the sieve plate is fixed around the perimeter with a large number of bolts, making its removal and installation cumbersome. If multiple rice sieving devices are purchased and used, the rice sieving devices occupy a large space and have low space utilization. Summary of the Invention

[0004] In order to reduce the space requirements for purchasing multiple rice sieve devices, reduce the floor space, improve space utilization, and achieve automatic and rapid switching of sieve plates, this application provides a rice sieve device for processing high-nutrition grains.

[0005] The rice sieve device for processing high-nutrition grains provided in this application adopts the following technical solution:

[0006] A rice sieve device for processing high-nutrient grains, comprising:

[0007] A frame, on which a feeding hopper and an elevator are mounted;

[0008] Screen plates are installed on the frame and there are multiple screen plates with different aperture specifications and arranged along the height direction. Each screen plate is inclined downward from the feeding hopper to the side away from the feeding hopper. Each screen plate is provided with multiple screening sections along its length direction. The aperture of the multiple screening sections gradually increases along the inclined downward direction of the screen plate.

[0009] The material collection hoppers are fixed to the frame and there are multiple hoppers. Each material collection hopper corresponds to a screening section and is located below the screening section. Each material collection hopper is equipped with a conveyor belt below it.

[0010] Vibration devices are installed below the sieve plate, and multiple devices are installed along the length of the sieve plate;

[0011] The self-switching mechanism is located between the frame and the vibrating device. It is used to separate or connect the screen plate to the vibrating device, as well as to drive the screen plate to move laterally and lock the screen plate position.

[0012] By adopting the above technical solution, when grains are screened using a rice sieve device, the grains are first lifted into the feeding hopper by an elevator. Then, grains are quantitatively added to the sieve plate through the feeding hopper. The grains pass through multiple screening sections along the length of the sieve plate, ensuring that grains of the same type but different sizes can be accurately screened. The vibrating device promotes the uniform distribution of grain particles on the sieve plate through high-frequency vibration, improving screening efficiency. Grains of different sizes then fall from their corresponding screening sections into the collection hopper below, and are conveyed by a conveyor belt through the outlet at the bottom of the collection hopper, thus achieving refined grain processing. When it is necessary to change the sieve plate to adapt to the screening requirements of different grains, the operator controls the self-switching mechanism to switch the sieve plate with the vibrating device. The separation process begins with moving the screen plate laterally to the outside of the screening working area, then moving a new screen plate into the screening working area. The new screen plate is then locked in place to ensure the stability and safety of the screening process. Finally, the screen plate is reconnected to the vibrating device to complete the screen plate replacement, adapting to the screening needs of different grains. This rice sieve device not only efficiently classifies grains according to particle size, achieving refined processing and meeting market demands for different textures of grain products while ensuring product quality, but also allows for quick screen plate replacement via a self-switching mechanism, reducing downtime. Furthermore, the rice sieve device can adapt to the screening needs of various grains, eliminating the need for multiple units, saving costs and equipment space, and improving space utilization.

[0013] Optionally, the self-switching mechanism includes:

[0014] A guide rail frame is fixed to one side of the machine frame and multiple such frames are arranged along the height direction. Each guide rail frame corresponds to a screen plate, and the screen plate can slide on the corresponding guide rail frame towards or away from the machine frame.

[0015] The disassembly and assembly assembly is located between the screen plate and the frame and is used to separate or connect the screen plate to the vibrating device.

[0016] The movable replacement component is located between multiple screen plates and is used to connect the screen plates and drive the screen plates to slide on the guide rail frame;

[0017] The anti-detachment component is located between the screen plate and the frame to fix the screen plate to the frame.

[0018] By adopting the above technical solution, when it is necessary to replace different types of screen plates, the operator first disconnects the screen plate from the vibrating device by using the disassembly and assembly component to prepare for the movement of the screen plate. Then, the anti-detachment component locks the screen plate, and then the moving replacement component drives the screen plate to slide along the guide rail away from the machine frame until the screen plate is completely removed from the screening working area. After the screen plate is completely removed, the new screen plate is connected to the moving replacement component, and the new screen plate is slid along the guide rail back into the screening working area by the moving replacement component again. At the same time, the disassembly and assembly component reconnects the screen plate to the vibrating device, and the anti-detachment component fixes the screen plate to the machine frame to ensure the stability and safety of the screening process. This allows for the rapid replacement of different types of screen plates. The coordinated operation of the disassembly and assembly component, the moving replacement component, and the anti-detachment component makes the screen plate replacement process simple and quick, reduces manual intervention, greatly shortens the screen plate replacement time, and reduces the downtime of the rice sieve device.

[0019] Optionally, the disassembly / assembly assembly includes:

[0020] The drive screw is rotatably connected to the frame, and a drive motor is provided at one end;

[0021] Guide rods are fixed to the frame;

[0022] A movable block is threadedly connected to a drive screw, and the movable block is slidably connected to a guide rod;

[0023] The drive cylinder is vertically positioned above the moving block;

[0024] A plug-in block is fixed to the top of the drive cylinder. The vibration device has a plug-in slot along the vertical direction, and the plug-in block can be plugged into the plug-in slot.

[0025] A connecting component is located between the screen plate and the vibrating device to connect the screen plate and the vibrating device.

[0026] By adopting the above technical solution, when disconnecting the screen plate from the vibrating device by disassembling the assembly, firstly, the drive cylinder drives the insertion block upwards into the insertion slot, then the connection of the connecting parts is released. Subsequently, the drive motor is started, and the drive motor drives the drive screw to rotate. The drive screw drives the moving block to move horizontally along the guide rod. The moving block drives the drive cylinder, the insertion block, and the vibrating device to move, so that the vibrating device is separated from the screen plate. After that, the drive cylinder drives the vibrating device to move downwards, thus releasing the connection between the screen plate and the vibrating device. When the new screen plate moves to the screening working area of ​​the frame, the drive cylinder drives the vibrating device to move upwards again to the bottom of the screen plate. Then, the drive motor drives the moving block, the drive cylinder, and the vibrating device to move horizontally to one side of the connecting parts, and the connecting parts reconnect the screen plate and the vibrating device. The disassembly assembly allows the position of the vibrating device to be moved horizontally and vertically, and the connecting parts enable automatic and rapid installation and disassembly of the vibrating device.

[0027] Optionally, the connecting component includes:

[0028] The connecting rod is fixed to the vibration device;

[0029] A connecting block is fixed to the end of the connecting rod furthest from the vibration device.

[0030] A connecting seat is fixedly disposed below the sieve plate, and a connecting groove is provided on one side of the connecting seat, into which the connecting block can be inserted;

[0031] The locking rod slides vertically within the connecting seat, and when the connecting block is inserted into the connecting groove, the locking rod abuts against one side of the connecting block to lock the connecting block into the connecting groove.

[0032] A locking spring is fixed between the locking rod and the connecting seat. The locking spring is always in a compressed state and provides a force to the locking rod to move toward the connecting groove.

[0033] Optionally, an unlocking rod is also fixedly mounted on the top of the drive cylinder, and a long strip-shaped pressing block is fixedly mounted on the unlocking rod.

[0034] By adopting the above technical solution, when the vibrating device is connected below the screen plate, the locking rod abuts against the side of the connecting block under the action of the locking spring, locking the connecting block in the connecting groove of the connecting seat, ensuring a stable connection between the screen plate and the vibrating device. When it is necessary to release the connection between the vibrating device and the screen plate, the driving cylinder first moves the insertion block and the unlocking rod upward. When the insertion block is inserted into the insertion groove, the unlocking rod overcomes the compression force of the locking spring and applies an upward force to the locking rod, causing the locking rod to move the pressing block to release the lock on the connecting block. After the locking rod has moved completely upward, the connecting block moves along the direction of the connecting groove under the drive of the vibrating device and separates from the connecting groove, thus releasing the connection between the screen plate and the vibrating device. The cooperation of the locking rod and the locking spring enables the connecting block to automatically lock into the connecting groove, ensuring a stable connection between the screen plate and the vibrating device. At the same time, when the top of the driving cylinder moves upward, the unlocking rod can automatically release the connection between the connecting components and the vibrating device and the connecting block, making the unlocking process of the connecting block simple and quick, reducing manual intervention, and improving the safety and efficiency of operation.

[0035] Optionally, the top of the vibration device is fixed with a bonding plate, and the bottom of the screen plate is provided with a bonding groove, and the bonding plate can be slidably inserted into the bonding groove.

[0036] By adopting the above technical solution, when the vibrating device is connected to the screen plate, the bonding plate slides into the bonding groove at the bottom of the screen plate to form a tight contact surface, ensuring a stable connection between the vibrating device and the screen plate. At the same time, the bonding plate also increases the contact area between the vibrating device and the screen plate, disperses the vibration force generated by the vibrating device, and reduces the stress concentration at the connection between the vibrating device and the connecting seat, thereby improving the stability and service life of the vibrating device.

[0037] Optionally, the movable replacement component includes:

[0038] The lifting frame is fixed to the machine frame;

[0039] The lifting screw is connected to the lifting frame and rotates vertically.

[0040] The power motor is located at one end of the lifting screw;

[0041] The lifting guide rod is fixed to the lifting frame;

[0042] The lifting block is threadedly connected to the lifting screw and slidably sleeved on the outside of the lifting guide rod;

[0043] The movable cylinder is positioned horizontally on the side of the lifting block closest to the frame;

[0044] The electric gripper is located on the side of the moving cylinder near the frame;

[0045] Pull ring, fixed to one side of the sieve plate.

[0046] By adopting the above technical solution, when it is necessary to replace the screen plate, the operator first starts the power motor, which drives the lifting screw to rotate. Then, the lifting block slides upward along the lifting guide rod until the lifting block drives the moving cylinder to the screen plate replacement area. Then, the moving cylinder is started, which drives the electric gripper to move to the pull ring position of the screen plate to be replaced. Then, the electric gripper closes, clamps the pull ring of the screen plate, and the moving cylinder drags the screen plate horizontally to the screen plate storage area. The electric gripper then opens to release the screen plate. The above process is repeated to replace the new screen plate, but this time the new screen plate is clamped from the storage area and pushed to the screening working area on the frame, and then fixed by the anti-detachment component.

[0047] Optionally, the anti-detachment component includes:

[0048] Anti-detachment rods are arranged vertically and multiple rods are spaced apart along the length of the sieve plate. A first anti-detachment groove is provided on the frame and a second anti-detachment groove is provided on the sieve plate. The anti-detachment rods can be inserted into the first anti-detachment groove and the second anti-detachment groove simultaneously.

[0049] The lifting rod is fixed between multiple anti-detachment rods;

[0050] The lifting cylinder is located between the lifting rod and the frame.

[0051] By adopting the above technical solution, each anti-detachment rod is simultaneously inserted into the first anti-detachment groove on the frame and the second anti-detachment groove on the screen plate, ensuring that the screen plate is not easily detached during vibration. At the same time, multiple anti-detachment rods ensure that the screen plate is evenly stressed along its length, making it less prone to deformation or damage. When the screen plate needs to be replaced, the operator activates the lifting cylinder, which drives multiple anti-detachment rods to move upwards simultaneously through the lifting rod, disengaging them from the first and second anti-detachment grooves, thus releasing the fixation on the screen plate and facilitating the subsequent replacement of a new screen plate into the screening working area of ​​the frame.

[0052] Optionally, the frame has multiple support slots on the side away from the guide rail frame, and each of the multiple support slots corresponds to a multiple sieve plate. Each support slot is rotatably connected to a rotating shaft, and a baffle is fixedly sleeved on the outside of the rotating shaft. A torsion spring is provided between the rotating shaft and the frame.

[0053] By adopting the above technical solution, when the screen plate moves from the screen plate storage area to the screening working area on the frame, one side of the screen plate is inserted into the support groove to provide certain support for the screen plate. For screen plates that are not used temporarily, the baffle will automatically return to the initial position under the action of the torsion spring, sealing the support groove on the frame to prevent material leakage. The torsion spring continuously applies torsional force to the baffle, causing the baffle to seal the support groove, so that the baffle is not easily affected by vibration and other factors that may cause large shaking and material leakage.

[0054] Optionally, the end of the baffle away from the rotation axis is arranged in an arc shape.

[0055] By adopting the above technical solution, when the screen plate moves into the support groove, one side of the screen plate will first contact the baffle. Due to the arc-shaped setting, the movement of the screen plate will naturally push the baffle, causing it to rotate upward around its own rotation axis, thereby opening the support groove and providing space for the smooth insertion of the screen plate.

[0056] In summary, this application includes at least one of the following beneficial technical effects:

[0057] 1. The rice sieve device can not only efficiently classify grains according to particle size, realize the fine processing of grains, meet the market demand for grain products with different tastes, and ensure product quality, but also quickly replace the sieve plate through the self-switching mechanism, reduce downtime, and make the rice sieve device adaptable to the screening needs of various grains, eliminating the need to purchase multiple machines, saving costs and equipment floor space, and improving space utilization.

[0058] 2. The self-switching mechanism, through the coordinated operation of disassembly and assembly components, moving and replacement components, and anti-detachment components, makes the replacement process of the sieve plate simple and quick, reduces manual intervention, greatly shortens the replacement time of the sieve plate, and reduces the downtime of the rice sieve device.

[0059] 3. The vibrating device can be moved horizontally and vertically by assembling and disassembling the components. With the help of the connecting parts, the installation and disassembly of the vibrating device can be completed automatically and quickly. Furthermore, the connecting parts, through the cooperation of a locking rod and a locking spring, allow the connecting block to automatically lock into the connecting groove, ensuring a stable connection between the screen plate and the vibrating device. Simultaneously, when the top of the drive cylinder moves upward, the unlocking rod can automatically release the connection between the connecting parts and the vibrating device and the connecting block, making the unlocking process simple and quick, reducing manual intervention, and improving operational safety and efficiency.

[0060] 4. When the vibrating device is connected to the screen plate, the bonding plate slides into the bonding groove at the bottom of the screen plate to form a tight contact surface, ensuring a stable connection between the vibrating device and the screen plate. At the same time, the bonding plate also increases the contact area between the vibrating device and the screen plate, disperses the vibration force generated by the vibrating device, and reduces stress concentration at the connection between the vibrating device and the connecting seat, thereby improving the stability and service life of the vibrating device.

[0061] 5. Each anti-detachment rod in the anti-detachment assembly is simultaneously inserted into the first anti-detachment groove on the frame and the second anti-detachment groove on the screen plate, ensuring that the screen plate is not easily detached during vibration. At the same time, multiple anti-detachment rods ensure that the screen plate is evenly stressed along its length, making it less prone to deformation or damage. When the screen plate needs to be replaced, the operator activates the lifting cylinder, which drives multiple anti-detachment rods to move upwards simultaneously through the lifting rods, disengaging them from the first and second anti-detachment grooves. This releases the fixation on the screen plate, making it easier to replace the new screen plate with a new one in the screening working area of ​​the frame.

[0062] 6. When the screen plate moves from the screen plate storage area to the screening working area on the frame, one side of the screen plate is inserted into the support groove to provide some support for the screen plate. For screen plates that are not in use temporarily, the baffle will automatically return to the initial position under the action of the torsion spring, sealing the support groove on the frame to prevent material leakage. The torsion spring continuously applies torsional force to the baffle, causing the baffle to block the support groove, so that the baffle is not easily affected by vibration and other factors that may cause large shaking and material leakage. Attached Figure Description

[0063] Figure 1 This is a schematic diagram of the rice sieve device in this application;

[0064] Figure 2 This is a partial sectional view of the rice sieve device;

[0065] Figure 3 This is a partial sectional view of the frame;

[0066] Figure 4 This is a schematic diagram showing a partial structure of the anti-detachment component;

[0067] Figure 5 This is a partial structural diagram showing the assembly and disassembly of the components;

[0068] Figure 6 This is a partial sectional view showing the disassembled and assembled components;

[0069] Figure 7 This is a structural diagram illustrating the movement and replacement of components.

[0070] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Storage area; 12. Screening working area; 13. Support groove; 14. First anti-detachment groove; 2. Feeding hopper; 3. Elevator; 4. Screen plate; 41. Adhesion groove; 42. Second anti-detachment groove; 5. Collection hopper; 6. Conveyor belt; 7. Vibration device; 71. Insertion groove; 8. Self-switching mechanism; 81. Guide rail frame; 82. Assembly / disassembly assembly; 821. Drive screw; 822. Drive motor; 823. Guide rod; 824. Moving block; 825. Drive cylinder; 826. Insertion block; 827. Connecting component; 8271 8271. Connecting rod; 8272. Connecting block; 8273. Connecting seat; 8274. Locking rod; 8275. Locking spring; 8276. Unlocking rod; 8277. Pressing block; 828. Adhesive plate; 83. Moving replacement component; 831. Lifting frame; 832. Lifting screw; 833. Power motor; 834. Lifting guide rod; 835. Lifting block; 836. Moving cylinder; 837. Electric gripper; 838. Pull ring; 84. Rotating shaft; 85. Baffle; 86. Anti-detachment component; 861. Anti-detachment rod; 862. Lifting rod; 863. Lifting cylinder. Detailed Implementation

[0071] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0072] This application discloses a rice sieve device for processing high-nutrient grains. (See also...) Figure 1 and Figure 2 The rice sieving device includes a frame 1, on which a feeding hopper 2 and a bucket elevator 3 are mounted. Multiple sieve plates 4 are arranged along one side of the frame 1, with different aperture sizes. Each sieve plate 4 is inclined downwards from the feeding hopper 2 towards the side furthest from it. Each sieve plate 4 has multiple sieving sections along its length, with the aperture size gradually increasing downwards along the inclined direction of the sieve plate 4. For ease of understanding, the frame 1 is divided into a storage area 11 for storing unused sieve plates 4 and a sieving working area 12 for sieving grains on the frame 1. Multiple collecting hoppers 5 are fixed on the frame 1, each corresponding to one of the sieving sections and located below them. A conveyor belt 6 is installed at the outlet below each collecting hopper 5. Multiple vibrating devices 7 are also installed below the sieve plates 4 along their length. For example, the vibrating devices 7 are vibrating motors, but other vibrating devices such as eccentric rotary mechanisms can also be used. A self-switching mechanism 8 is provided between the frame 1 and the vibration device 7. The self-switching mechanism 8 is used to separate or connect the screen plate 4 and the vibration device 7, as well as to drive the screen plate 4 to move laterally and lock the position of the screen plate 4.

[0073] When grains are screened using a rice sieve device, the grains are first lifted into the feeding hopper 2 by a bucket elevator 3. Then, grains are quantitatively added to the sieve plate 4 through the feeding hopper 2. The grains pass through multiple screening sections along the length of the sieve plate 4 to ensure that the same type of grain with different particle sizes can be accurately screened. The vibrating device 7 promotes the uniform distribution of grain particles on the sieve plate 4 through high-frequency vibration, improving screening efficiency. Then, grains of different sizes fall from their corresponding screening sections into the collection hopper 5 below, and are then conveyed by the conveyor belt 6 through the outlet at the bottom of the collection hopper 5, thereby achieving the fine processing of the grains.

[0074] When it is necessary to replace the sieve plate 4 to adapt to the screening requirements of different grains, the operator controls the self-switching mechanism 8 to separate the sieve plate 4 from the vibrating device 7. Then, the sieve plate 4 is moved laterally to the outside of the screening working area 12, and a new sieve plate 4 is moved into the screening working area 12. The position of the new sieve plate 4 is then locked to ensure the stability and safety of the screening process. The sieve plate 4 is then reconnected to the vibrating device 7 to complete the replacement of the sieve plate 4 to adapt to the screening requirements of different grains. This rice sieve device not only efficiently classifies grains according to particle size, achieving refined processing of grains and meeting market demands for different textures of grain products, but also ensures product quality. Furthermore, the self-switching mechanism 8 allows for quick replacement of the sieve plate 4, reducing downtime. Simultaneously, the rice sieve device can adapt to the screening requirements of various grains, eliminating the need to purchase multiple machines, saving costs and equipment floor space, and improving space utilization.

[0075] In some embodiments, refer to Figure 2 and Figure 3 The self-switching mechanism 8 includes multiple guide rails 81 fixed along the height direction on one side of the frame 1. Each guide rail 81 corresponds to a specific screen plate 4, and the screen plate 4 can slide on its corresponding guide rail 81 towards or away from the frame 1. A disassembly / removal assembly 82 is provided between the screen plate 4 and the frame 1, used to separate or connect the screen plate 4 to the vibrating device 7. A movable replacement assembly 83 is provided between the multiple screen plates 4, used to connect the screen plates 4 and to drive the screen plates 4 to slide on the guide rails 81. Multiple support slots 13 are provided on the side of the frame 1 away from the guide rails 81, arranged along the height direction and corresponding to a specific screen plate 4. A rotating shaft 84 is rotatably connected to each support slot 13, and a baffle 85 is fixedly sleeved on the outside of the rotating shaft 84, with the end of the baffle 85 away from the rotating shaft 84 being arc-shaped. A torsion spring is also provided between the rotating shaft 84 and the frame 1. The torsion spring continuously applies torsional force to the baffle 85, causing the baffle 85 to seal the support groove 13, so that the baffle 85 is not easily affected by vibration and other factors, which may cause material leakage. An anti-detachment component 86 is provided between the screen plate 4 and the frame 1. The anti-detachment component 86 is used to fix the screen plate 4 to the frame 1.

[0076] When it is necessary to replace different types of screen plates 4, the operator first disconnects the screen plate 4 from the vibrating device 7 using the disassembly and assembly component 82 to prepare for the movement of the screen plate 4. Next, the anti-detachment component 86 is released from locking the screen plate 4. Then, the screen plate 4 is slid along the guide rail 81 away from the frame 1 using the moving replacement component 83 until it is completely removed from the screening working area 12. After the screen plate 4 is completely removed, the new screen plate 4 is connected to the moving replacement component 83, and the new screen plate 4 is slid along the guide rail 81 into the screening working area 12 again using the moving replacement component 83. When the screen plate 4 moves from the screen plate 4 storage area 11 to the screening working area 12 on the frame 1, the movement of the screen plate 4 will naturally push the baffle 85, causing it to rotate upwards around its own rotation axis 84, thereby opening the support groove 13 and allowing one side of the screen plate 4 to be inserted into the support groove 13, providing some support for the screen plate 4. Simultaneously, assembly 82 reconnects the sieve plate 4 to the vibrating device 7, and anti-detachment assembly 86 fixes the sieve plate 4 to the frame 1, ensuring the stability and safety of the screening process, thus enabling quick replacement of different types of sieve plates 4. For sieve plates 4 that are not currently in use, baffle 85 will automatically return to its initial position under the action of a torsion spring, sealing the support groove 13 on the frame 1 to prevent material leakage. Through the coordinated operation of assembly 82, replacement assembly 83, and anti-detachment assembly 86, the replacement process of sieve plate 4 becomes simple and quick, reducing manual intervention and significantly shortening the replacement time of sieve plate 4, thereby reducing the downtime of the rice sieve device.

[0077] In some embodiments, refer to Figure 3 and Figure 4 The anti-detachment component 86 includes multiple anti-detachment rods 861 arranged vertically, spaced apart along the length of the sieve plate 4. A first anti-detachment groove 14 is provided on the frame 1, and a second anti-detachment groove 42 is provided on the sieve plate 4. The anti-detachment rods 861 can be simultaneously inserted into the first anti-detachment groove 14 and the second anti-detachment groove 42. Lifting rods 862 are fixed between the multiple anti-detachment rods 861, and lifting cylinders 863 are provided between the lifting rods 862 and the frame 1.

[0078] Each anti-detachment rod 861 is simultaneously inserted into the first anti-detachment groove 14 on the frame 1 and the second anti-detachment groove 42 on the screen plate 4, ensuring that the screen plate 4 is not easily detached during vibration. At the same time, multiple anti-detachment rods 861 ensure that the screen plate 4 is subjected to uniform force along its length, preventing deformation or damage. When the screen plate 4 needs to be replaced, the operator activates the lifting cylinder 863, which, through the lifting rod 862, moves multiple anti-detachment rods 861 upwards simultaneously, disengaging them from the first anti-detachment groove 14 and the second anti-detachment groove 42. This releases the fixation on the screen plate 4, facilitating the subsequent replacement of the new screen plate 4 into the screening working area 12 of the frame 1.

[0079] In some embodiments, refer to Figure 5 and Figure 6 The assembly / disassembly component 82 includes a drive screw 821 rotatably connected to the frame 1, with a drive motor 822 mounted at one end of the drive screw 821. A guide rod 823 is also fixed to the frame 1. A moving block 824 is threadedly connected to the drive screw 821, and the moving block 824 is slidably connected to the guide rod 823. A drive cylinder 825 is fixed vertically above the moving block 824, and an insertion block 826 is fixedly mounted on the top of the drive cylinder 825. The vibrating device 7 has an insertion slot 71 vertically open, into which the insertion block 826 can be inserted. A connecting component 827 is provided between the screen plate 4 and the vibrating device 7, for connecting the screen plate 4 and the vibrating device 7. The top of the vibrating device 7 is also fixed with a bonding plate 828. The bonding plate 828 can be dovetail-shaped or T-shaped. The bottom of the screen plate 4 is provided with a bonding groove 41 that matches the bonding plate 828. The bonding plate 828 can be slidably inserted into a portion of the bonding groove 41 near the connecting component 827.

[0080] When disconnecting the screen plate 4 from the vibrating device 7 by disassembling assembly 82, firstly, the drive cylinder 825 drives the insertion block 826 upward to insert into the insertion slot 71, and then the connection of the connecting component 827 is released. Then, the drive motor 822 is started, which drives the drive screw 821 to rotate. The drive screw 821 drives the moving block 824 to move horizontally along the guide rod 823. The moving block 824 drives the drive cylinder 825, the insertion block 826, the bonding plate 828, and the vibrating device 7 to move, so that the vibrating device 7 is separated from the screen plate 4. Then, the drive cylinder 825 drives the vibrating device 7 to move downward, thus releasing the connection between the screen plate 4 and the vibrating device 7.

[0081] After the new screen plate 4 moves to the screening working area 12 of the frame 1, the drive cylinder 825 drives the vibrating device 7 to move upward to the bottom of the screen plate 4 again. Then, the drive motor 822 drives the moving block 824, the drive cylinder 825, the bonding plate 828, and the vibrating device 7 to move horizontally to the side of the connecting component 827. The connecting component 827 then connects the screen plate 4 and the vibrating device 7 again. The disassembly and assembly component 82 can move the position of the vibrating device 7 in both horizontal and vertical directions. With the help of the connecting component 827, the installation and disassembly of the vibrating device 7 can be carried out automatically and quickly. When the vibrating device 7 is connected to the screen plate 4, the bonding plate 828 slides into the bonding groove 41 at the bottom of the screen plate 4 to form a tight contact surface, ensuring a stable connection between the vibrating device 7 and the screen plate 4. At the same time, the bonding plate 828 also increases the contact area between the vibrating device 7 and the screen plate 4, disperses the vibration force generated by the vibrating device 7, and reduces the stress concentration at the connection between the vibrating device 7 and the connecting seat 8273, thereby improving the stability and service life of the vibrating device 7.

[0082] In some embodiments, refer to Figure 5 and Figure 6 The connecting component 827 includes a connecting rod 8271 fixed to one side of the vibrating device 7, and a connecting block 8272 fixed to the end of the connecting rod 8271 away from the vibrating device 7. A connecting seat 8273 is fixed below the screen plate 4, and a connecting groove is opened on one side of the connecting seat 8273, into which the connecting block 8272 can be inserted. A locking rod 8274 is slidably connected in the vertical direction inside the connecting seat 8273, and when the connecting block 8272 is inserted into the connecting groove, the locking rod 8274 abuts against one side of the connecting block 8272 to lock the connecting block 8272 into the connecting groove. A locking spring 8275 is fixed between the locking rod 8274 and the connecting seat 8273, and the locking spring 8275 is always in a compressed state and provides a force to the locking rod 8274 to move towards the connecting groove. An unlocking rod 8276 is also fixed to the top of the drive cylinder 825, and a long strip-shaped pressing block 8277 is fixed to the top of the unlocking rod 8276.

[0083] When the vibrating device 7 is connected below the screen plate 4, the locking rod 8274, under the action of the locking spring 8275, abuts against one side of the connecting block 8272, locking the connecting block 8272 in the connecting groove of the connecting seat 8273, ensuring a stable connection between the screen plate 4 and the vibrating device 7. When it is necessary to release the connection between the vibrating device 7 and the screen plate 4, firstly, the drive cylinder 825 moves the insertion block 826 and the unlocking rod 8276 upward. When the insertion block 826 is inserted into the insertion groove 71, the unlocking rod 8276 overcomes the compression force of the locking spring 8275 and applies an upward force to the locking rod 8274, causing the locking rod 8274 to drive the pressing block 8277 to release the lock on the connecting block 8272. After the locking rod 8274 has moved completely upward, the connecting block 8272, driven by the vibrating device 7, moves along the direction of the connecting groove and separates from the connecting groove, thus releasing the connection between the screen plate 4 and the vibrating device 7. The locking rod 8274 and the locking spring 8275 work together to automatically lock the connecting block 8272 into the connecting groove, ensuring a stable connection between the screen plate 4 and the vibrating device 7. At the same time, when the top of the drive cylinder 825 moves upward, the unlocking rod 8276 can automatically release the connection between the connecting component 827 and the vibrating device 7 and the connecting block 8272, making the unlocking process of the connecting block 8272 simple and quick, reducing manual intervention, and improving the safety and efficiency of operation.

[0084] In some embodiments, refer to Figure 7The movable replacement assembly 83 includes a lifting frame 831 fixed to the frame 1. The lifting frame 831 is rotatably connected to a lifting screw 832 in the vertical direction, and a power motor 833 is mounted on the top of the lifting screw 832. A lifting guide rod 834 is fixed to the lifting frame 831, and a lifting block 835 is threadedly connected to the lifting screw 832, with the lifting block 835 slidably sleeved on the outside of the lifting guide rod 834. A moving cylinder 836 is horizontally mounted on the side of the lifting block 835 closest to the frame 1, and an electric gripper 837 is mounted on the side of the moving cylinder 836 closest to the frame 1. A pull ring 838 is fixed to one side of the sieve plate 4.

[0085] When the screen plate 4 needs to be replaced, the operator first starts the power motor 833, which drives the lifting screw 832 to rotate. Then, the lifting block 835 slides upward along the lifting guide rod 834 until the lifting block 835 drives the moving cylinder 836 to the replacement area of ​​the screen plate 4. Next, the moving cylinder 836 is started, which drives the electric gripper 837 to move to the pull ring 838 position of the screen plate 4 to be replaced. Then, the electric gripper 837 closes, clamps the pull ring 838 of the screen plate 4, and drags the screen plate 4 horizontally to the screen plate 4 storage area 11 through the moving cylinder 836. The electric gripper 837 then opens to release the screen plate 4. The above process is repeated to replace the new screen plate 4, but this time the new screen plate 4 is clamped from the storage area 11 and pushed to the screening working area 12 on the frame 1, and then fixed by the anti-detachment component 86.

[0086] The implementation principle of a rice sieve device for high-nutrition grain processing in this application embodiment is as follows: When the rice sieve device screens the grain, the grain is first lifted into the feeding hopper 2 by the bucket elevator 3. Then, the grain is quantitatively added to the sieve plate 4 through the feeding hopper 2. The grain passes through multiple screening sections along the length of the sieve plate 4 to ensure that the same type of grain with different particle sizes can be accurately screened. The vibration device 7 promotes the uniform distribution of grain particles on the sieve plate 4 through high-frequency vibration, improving screening efficiency. Then, grain particles of different sizes fall from their corresponding screening sections and enter the collection hopper 5 below. They are then conveyed by the conveyor belt 6 through the outlet below the collection hopper 5, thereby achieving fine processing of the grain. When it is necessary to replace the sieve plate 4 to adapt to the screening requirements of different grains, the operator controls the self-switching mechanism 8. The screen plate 4 is separated from the vibrating device 7, and then the screen plate 4 is moved laterally to the outside of the screening working area 12. A new screen plate 4 is then moved into the screening working area 12, and the position of the new screen plate 4 is locked to ensure the stability and safety of the screening process. Then, the screen plate 4 is reconnected to the vibrating device 7 to complete the replacement of the screen plate 4, so as to adapt to the screening needs of different grains. The rice screening device can not only efficiently classify grains according to particle size, realize the fine processing of grains, meet the market demand for grain products with different tastes, and ensure product quality, but also quickly replace the screen plate 4 through the self-switching mechanism 8, reducing downtime. At the same time, the rice screening device can adapt to the screening needs of various grains, eliminating the need to purchase multiple machines, saving costs and equipment floor space, and improving space utilization.

[0087] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rice sieve device for processing high-nutrition grains, characterized in that, include: A frame (1) is provided with a feeding hopper (2) and an elevator (3); Screen plates (4) are set on the frame (1) and there are multiple screen plates (4). The aperture specifications of the multiple screen plates (4) are different and they are arranged along the height direction. Each screen plate (4) is inclined downward from the feeding hopper (2) to the side away from the feeding hopper (2). Each screen plate (4) is provided with multiple screening sections along its length direction. The aperture of the multiple screening sections gradually increases along the inclined downward direction of the screen plate (4). The material collection hopper (5) is fixed to the frame (1) and there are multiple hoppers. Each material collection hopper (5) corresponds to a screen section and is located below the screen section. Each material collection hopper (5) is provided with a conveyor belt (6) below it. Vibration device (7) is provided below the sieve plate (4), and multiple such devices are provided along the length of the sieve plate (4); The self-switching mechanism (8) is located between the frame (1) and the vibrating device (7) to separate or connect the screen plate (4) and the vibrating device (7), as well as to drive the screen plate (4) to move laterally and lock the position of the screen plate (4). The self-switching mechanism (8) includes: The guide rail frame (81) is fixed on one side of the frame (1) and multiple guide rail frames (81) are arranged along the height direction. Each guide rail frame (81) corresponds to a screen plate (4). The screen plate (4) can slide on the corresponding guide rail frame (81) towards or away from the frame (1). The disassembly assembly (82) is located between the screen plate (4) and the frame (1) and is used to separate or connect the screen plate (4) and the vibrating device (7); The movable replacement component (83) is disposed between multiple screen plates (4) for connecting the screen plates (4) and for driving the screen plates (4) to slide on the guide rail frame (81); An anti-detachment component (86) is disposed between the sieve plate (4) and the frame (1) to fix the sieve plate (4) to the frame (1); The disassembly / assembly assembly (82) includes: A drive screw (821) is rotatably connected to the frame (1), and a drive motor (822) is provided at one end; Guide rod (823) is fixed to frame (1); A movable block (824) is threadedly connected to a drive screw (821), and the movable block (824) is slidably connected to a guide rod (823); A drive cylinder (825) is vertically positioned above the moving block (824); A plug-in block (826) is fixed on the top of the drive cylinder (825). The vibration device (7) has a plug-in groove (71) in the vertical direction. The plug-in block (826) can be plugged into the plug-in groove (71). A connecting component (827) is disposed between the sieve plate (4) and the vibrating device (7) for connecting the sieve plate (4) and the vibrating device (7); The connecting component (827) includes a connecting rod (8271), a connecting block (8272), a connecting seat (8273), a locking rod (8274), and a locking spring (8275); The anti-detachment component (86) includes an anti-detachment rod (861), a lifting rod (862), and a lifting cylinder (863).

2. The rice sieve device for processing high-nutrition grains according to claim 1, characterized in that, The connecting rod (8271) is fixed to the vibration device (7); The connecting block (8272) is fixed at the end of the connecting rod (8271) away from the vibration device (7); The connecting seat (8273) is fixed below the sieve plate (4), and a connecting groove is provided on one side of the connecting seat (8273), and the connecting block (8272) can be inserted into the connecting groove; The locking rod (8274) slides vertically into the connecting seat (8273), and when the connecting block (8272) is inserted into the connecting groove, the locking rod (8274) abuts against one side of the connecting block (8272) to lock the connecting block (8272) into the connecting groove; The locking spring (8275) is fixed between the locking rod (8274) and the connecting seat (8273). The locking spring (8275) is always in a compressed state and gives the locking rod (8274) a force to move toward the connecting groove.

3. The rice sieve device for processing high-nutrition grains according to claim 2, characterized in that, The top of the drive cylinder (825) is also fixed with an unlocking rod (8276), and an elongated pressing block (8277) is fixed on the unlocking rod (8276).

4. The rice sieve device for processing high-nutrition grains according to claim 1, characterized in that, The vibrating device (7) has a bonding plate (828) fixed on top, and the screen plate (4) has a bonding groove (41) at the bottom. The bonding plate (828) can be slidably inserted into the bonding groove (41).

5. The rice sieve device for processing high-nutrition grains according to claim 1, characterized in that, The movable replacement component (83) includes: The lifting frame (831) is fixed to the frame (1); The lifting screw (832) is rotatably connected to the lifting frame (831) in the vertical direction; A power motor (833) is installed at one end of the lifting screw (832); The lifting guide rod (834) is fixed to the lifting frame (831); The lifting block (835) is threadedly connected to the lifting screw (832) and slidably sleeved on the outside of the lifting guide rod (834); The movable cylinder (836) is arranged horizontally on the side of the lifting block (835) near the frame (1); An electric gripper (837) is located on the side of the moving cylinder (836) near the frame (1); Pull ring (838) is fixed on one side of sieve plate (4).

6. The rice sieve device for processing high-nutrition grains according to claim 1, characterized in that, The anti-detachment rod (861) is arranged vertically and multiple rods are spaced apart along the length of the sieve plate (4). The frame (1) is provided with a first anti-detachment groove (14) and the sieve plate (4) is provided with a second anti-detachment groove (42). The anti-detachment rod (861) can be inserted into the first anti-detachment groove (14) and the second anti-detachment groove (42) at the same time. The lifting rod (862) is fixed between multiple anti-detachment rods (861); The lifting cylinder (863) is located between the lifting rod (862) and the frame (1).

7. The rice sieve device for processing high-nutrition grains according to claim 1, characterized in that, The frame (1) has multiple support slots (13) on the side away from the guide rail frame (81). Each of the multiple support slots (13) corresponds to a multiple sieve plate (4). Each support slot (13) is rotatably connected to a rotating shaft (84). A baffle (85) is fixedly sleeved on the outside of the rotating shaft (84). A torsion spring is provided between the rotating shaft (84) and the frame (1).

8. The rice sieve device for processing high-nutrition grains according to claim 7, characterized in that, The end of the baffle (85) away from the rotation axis (84) is arranged in an arc shape.

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