Intelligent screening and noise reduction rice husking machine

Abstract

The invention discloses an intelligent screening and noise reduction rice mill, and belongs to the technical field of rice mills, the intelligent screening and noise reduction rice mill mainly comprises a first rolling shell, one side of the first rolling shell is provided with a second rolling shell in movable extrusion connection, and the opposite sides of the second rolling shell and the first rolling shell are fixedly connected with linkage supporting plates; an expansion dredging mechanism is mounted at the top end of the linkage support plate. An expansion dredging mechanism is adopted, so that a speed reduction driving motor drives a linkage screw rod to rotate forwards in a guide rectangular frame plate, the linkage screw rod drives a threaded sleeving support block to move rightwards in the guide rectangular frame plate under the action of threads, and the threaded sleeving support block drives a fixed shaft rod to enable two hinged lantern ring frames to move rightwards at the same time; and a large opening position is formed between the first rolling shell and the second rolling shell, the rice milling roller rotatably discharges rice milling impurities clamped to the outer portion of the rice milling roller, intelligent automatic overhauling treatment is rapidly conducted on the blocked position, and maintenance is safer.

Description

Technical Field

[0001] This invention relates to the field of rice milling machine technology, specifically to an intelligent screening and noise reduction rice milling machine. Background Technology

[0002] A rice milling machine is a mechanical device used to process grains, specifically rice. To reduce machine noise during the rice milling process, noise reduction designs and measures may be implemented, such as using low-noise motors, optimizing machine structure, and adding shock-absorbing devices. These measures can reduce noise generation during rice milling and provide a more comfortable working environment.

[0003] Among the existing published documents, Chinese Patent Publication No. CN213376771U discloses a novel rice milling device. This patent mainly uses a bran-removing sieve to separate rice from rice bran. When a vibrating motor is started, the screening efficiency of the bran-removing sieve is accelerated, thereby avoiding clogging. When a side-flow blower is started, the rice bran inside the screening box is sucked up and discharged into the collection box. This not only effectively avoids the subsequent bran removal process but also effectively prevents rice bran from flying around, improves the working environment, and increases work efficiency, thus solving problems that have been solved in the prior art. However, this patent still has the following defects.

[0004] The rice milling machine described above requires the rice milling roller to contact the rice grains during the rice milling process to achieve extrusion and milling. However, the rice grains are of different sizes, and if the rice milling roller becomes clogged or damaged during the milling process, personnel need to disassemble and repair the entire rice milling roller. The entire rice milling machine needs to be shut down to wait for maintenance personnel to arrive on site for disassembly and repair. This significantly increases the maintenance time of the rice milling roller and results in a high rate of rice milling downtime. Moreover, there are significant safety hazards when non-professionals operate the machine. Therefore, there is a need to provide an intelligent screening and noise reduction rice milling machine. Summary of the Invention

[0005] Therefore, the present invention provides an intelligent screening and noise reduction rice milling machine to solve the technical problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent screening and noise reduction rice milling machine, comprising a first milling shell, a second milling shell movably connected to one side of the first milling shell, and a linkage support plate fixedly connected to the opposite side of the second milling shell and the first milling shell, wherein an extension unblocking mechanism is installed at the top of the linkage support plate;

[0007] The extended unblocking mechanism includes a support column installed at the top of the linkage support plate. A hinged collar frame is installed on the outer wall of the support column near its top. A fixed shaft is installed inside the hinged collar frame away from the support column. A threaded sleeve support block is fixedly connected to the bottom end of the fixed shaft. A guide rectangular frame plate is horizontally slidably connected to the outer wall of the threaded sleeve support block. Linkage toothed plates are installed at both the front and rear of the threaded sleeve support block. A precision locking component is provided on one side of the linkage toothed plate. A screening and pouring component is installed below the first crushing shell. Two hinged collar frames are arranged equidistantly from bottom to top, and both hinged collar frames are rotatably connected to the fixed shaft. The support column and the linkage support plate are integrally formed by die casting, and the support column and the hinged collar frame are rotatably connected. The two linkage support plates are symmetrically arranged.

[0008] Preferably, a linkage screw is threadedly connected to the inner wall of the threaded sleeve support block near its bottom end. One end of the linkage screw extends to the outside of the guide rectangular frame plate and is coaxially connected to a reduction drive motor. A support block is installed on one side of the outer wall of the reduction drive motor, and the support block is fixedly connected to the guide rectangular frame plate and the reduction drive motor respectively.

[0009] Preferably, a limiting ring for limiting the hinged collar frame is fixedly installed on the outer wall of the fixed shaft near its top. A rice milling roller is rotatably connected between the first and second milling shells, and a transmission rod is fixedly connected to the center of one end of the rice milling roller. A reduction motor is coaxially connected to one end of the transmission rod. The reduction motor is fixedly installed between the guide rectangular frame plate. A linkage collar frame is welded to the bottom of each linkage support plate. A guide support rod is slidably connected inside each linkage collar frame near its bottom. A support linkage frame for fixing the reduction motor is welded between two guide support rods.

[0010] By adopting the above technical solution, when the first and second crushing shells come into contact with and become blocked by the rice milling roller, the controller starts the reduction drive motor to drive the linkage screw to rotate clockwise inside the guide rectangular frame plate. The linkage screw drives the threaded sleeve support block to move to the right along the inside of the guide rectangular frame plate under the action of the thread. At the same time, the threaded sleeve support block drives the fixed shaft to move the two hinged collar frames to the right. The two hinged collar frames rotate on the outer wall of the fixed shaft. The two hinged collar frames can drive the two support columns to move away from each other. The support columns drive the linkage support plate to move the second crushing shell forward and the first crushing shell backward. At the same time, the linkage support plate drives the linkage collar frame to slide along the outer wall of the guide support rod. The support linkage frame can support the guide support rod, opening a larger opening between the first and second crushing shells. Then, the reduction motor is started to drive the transmission rod to rotate. The transmission rod drives the rice milling roller to rotate, and the rice milling roller rotates and discharges the rice impurities stuck on its outside.

[0011] Preferably, the precision locking assembly includes a gear that engages with and clamps a gear on one side of a linkage gear plate. A sensing block is fixedly connected to the top of one of the linkage gear plates. A linkage clamping column is rotatably connected inside the clamping gear, and a proximity switch parallel to the sensing block is installed at the top of the linkage clamping column. A guide frame plate is fixedly connected to the bottom of the guide rectangular frame plate at its middle position. A bidirectional locking screw is rotatably connected inside the guide frame plate. A first threaded clamping sleeve and a second threaded clamping sleeve are threadedly connected to the outer wall of the bidirectional locking screw from right to left. A reduction clamping motor is coaxially driven to one end of the bidirectional locking screw. A connecting bracket is fixedly connected to the bottom of both the first and second threaded clamping sleeves. The inner wall of the connecting bracket is fixedly connected to the outer wall of the linkage clamping column. Both the first and second threaded clamping sleeves are slidably connected to the guide frame plate. The two threads on the outer wall of the bidirectional locking screw are opposite and symmetrically arranged.

[0012] By adopting the above technical solution, the linkage toothed plate drives the sensing block to move, and the linkage toothed plate meshes with the clamping gear for transmission. When the sensing block makes contact with the sensing end of the proximity switch, the controller starts the reduction clamping motor fixed on the guide frame plate. The reduction clamping motor drives the bidirectional locking screw to rotate in the forward direction inside the guide frame plate. The second threaded clamping sleeve slides inside the guide frame plate, while the first threaded clamping sleeve moves inside the guide frame plate. The second threaded clamping sleeve and the first threaded clamping sleeve are relatively close to each other, and the second threaded clamping sleeve and the first threaded clamping sleeve respectively drive the two connecting brackets to move. The connecting brackets drive the linkage clamping column to move the proximity switch. At the same time, the linkage clamping column drives the clamping gear to press against one side of the outer wall of the linkage toothed plate, which can limit and lock the position of the entire linkage toothed plate.

[0013] Preferably, the screening and feeding assembly includes an inclined screening and noise reduction cylinder installed below the first crushing shell, with an arc-shaped screening screen fixedly connected inside the inclined screening and noise reduction cylinder. A controller is fixedly connected to one side of the outer wall of the inclined screening and noise reduction cylinder. Multiple rotatably connected screening plates are installed above the arc-shaped screening screen. A screening shaft with one end extending to the outside of the inclined screening and noise reduction cylinder is provided on one side of each screening plate. A rotary motor is coaxially connected to one end of the screening shaft. A linkage positioning shaft, rotatably connected to the inclined screening and noise reduction cylinder, is installed above the rotary motor. A linkage gear ring is fixedly installed on the outer wall of the linkage positioning shaft, and a meshing transmission connection is made on one side of the outer wall of the linkage gear ring. A drive gear ring is provided, and a drive reduction motor is embedded and fixedly connected to one side of the drive gear ring. A sensing support block is fixedly connected to the outer wall of the linkage positioning shaft near one end. Multiple plug-in support columns are provided on one side of the linkage positioning shaft in a circular and equidistant arrangement. A plug-in rod is fixedly connected to one end of the plug-in support column. A distance sensor for sensing the sensing support block is installed on the upper part of the outer wall of the plug-in rod. An electric cylinder is fixedly connected to one end of the plug-in rod. The plug-in support column and the linkage positioning shaft are horizontally slidably plugged in. The electric cylinder is fixedly connected to the rotary motor. Both the rotary motor and the drive reduction motor are fixedly connected to the inclined screening noise reduction cylinder.

[0014] By adopting the above technical solution, the drive reduction motor is started to drive the drive gear ring to rotate forward. The linkage gear ring drives the linkage positioning shaft to rotate counterclockwise by 120 degrees on the inclined screening and noise reduction cylinder. At the same time, the linkage positioning shaft drives the support linkage frame, which causes the reduction motor to drive the transmission rod to rotate. The transmission rod drives the rice milling roller to rotate and tilt the first and second milling shells. After the rice is discharged, the drive reduction motor can be started to drive the drive gear ring to rotate in reverse. The linkage gear ring drives the linkage positioning shaft to rotate the support linkage frame clockwise to reset. When the sensing block and the distance sensor are on the same horizontal line, the data sensed by the distance sensor on the sensing block is the same as the data set by the controller. Then the rotation motor drive is stopped, and the electric cylinder is started to drive the plug rod to move to the right. The plug rod drives multiple plug supports to move to the right. The plug supports are inserted into the holes of the linkage positioning shaft and locked and fixed.

[0015] The present invention has the following advantages:

[0016] 1. This invention employs an extended unblocking mechanism that drives a reduction drive motor to rotate a linkage screw inside a guide rectangular frame. The linkage screw drives a threaded sleeve support block to move to the right along the inside of the guide rectangular frame under the action of the thread. Simultaneously, the threaded sleeve support block drives a fixed shaft to move two hinged collar frames to the right, opening a larger opening between the first and second grinding shells. The rice milling roller then rotates and discharges the rice impurities stuck to its outside. Subsequently, the first and second grinding shells are automatically squeezed and closed against the linkage support plate, quickly performing intelligent and automatic inspection and repair of the blockage. Subsequent maintenance is more time-saving and labor-saving, and requires no manual operation, making maintenance safer.

[0017] 2. This invention uses a precise locking component to move the sensing block along with the linkage toothed plate. Simultaneously, the linkage toothed plate meshes with the clamping gear. When the sensing block makes contact with the sensing end of the proximity switch, the controller starts the reduction clamping motor fixed on the guide frame plate. The second threaded clamping sleeve slides inside the guide frame plate, while the first threaded clamping sleeve moves inside the guide frame plate. The second threaded clamping sleeve and the first threaded clamping sleeve are relatively close to each other, avoiding accidental clamping and preventing injury to other personnel caused by the first and second crushed shells. This improves maintenance safety.

[0018] 3. This invention uses a screening and feeding assembly to start a drive reduction motor that drives a drive gear ring to rotate forward. The drive gear ring drives a linkage gear ring to rotate forward, and the linkage positioning shaft rotates counterclockwise 120 degrees on the inclined screening and noise reduction cylinder. The transmission rod drives the rice milling roller to rotate and tilt the first and second milling shells. A large amount of rice inside the first and second milling shells is tilted and discharged to a designated area. The drive reduction motor is then started to drive the drive gear ring to rotate in reverse. When the sensing support block and the distance sensor are on the same horizontal line, the plug-in support is inserted into the hole of the linkage positioning shaft to complete the locking operation. This can automatically discharge unprocessed rice and lock it precisely after discharge, avoiding the tilting and shaking of the entire first milling shell and the resulting safety hazards. This effectively improves maintenance safety.

[0019] Through the interaction of the above-mentioned multiple functions, the unprocessed rice is first automatically discharged and precisely locked. Then, a larger opening is opened between the first and second grinding shells, allowing the rice milling roller to rotate and discharge any rice impurities stuck to its surface. The first and second grinding shells then press and close the linkage support plate. Finally, the rice milling roller rotates and discharges any rice impurities stuck to its surface through the larger opening between the first and second grinding shells, and the linkage support plate is pressed and closed again. In summary, the rice milling machine can automatically handle blockages without waiting for maintenance personnel to arrive on site. This significantly reduces the maintenance time for the rice milling roller and eliminates the need for non-professional operation, effectively improving safety. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of an intelligent screening and noise reduction rice milling machine according to the present invention;

[0023] Figure 2 This is a schematic diagram of a partial section of the support linkage frame in an intelligent screening and noise reduction rice milling machine according to the present invention.

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a top view schematic diagram of an intelligent screening and noise reduction rice milling machine according to the present invention;

[0026] Figure 5 This is a top view of the connection between the induction block and the linkage toothed plate in an intelligent screening and noise reduction rice milling machine according to the present invention.

[0027] Figure 6 This is a schematic diagram of the precise locking component structure in an intelligent screening and noise reduction rice milling machine according to the present invention;

[0028] Figure 7 This is a schematic diagram of a partial section of the inclined screening and noise reduction cylinder in an intelligent screening and noise reduction rice milling machine according to the present invention;

[0029] Figure 8 This is a schematic diagram of the vertical cross-section structure of an intelligent screening and noise reduction rice milling machine according to the present invention;

[0030] In the diagram: 1. First crushing shell; 2. Second crushing shell; 3. Linkage support plate; 4. Support column; 5. Hinge collar frame; 6. Fixed shaft; 7. Threaded sleeve support block; 8. Linkage screw; 9. Gear drive motor; 10. Guide rectangular frame plate; 11. Support block; 12. Limiting ring; 13. Rice milling roller; 14. Transmission rod; 15. Gear motor; 16. Linkage collar frame; 17. Guide support rod; 18. Support linkage frame; 19. Linkage toothed plate; 20. Induction block; 21. Proximity switch; 22. Linkage clamping column; 23. Clamping gear; 4. Guide frame plate; 25. Two-way locking screw; 26. First threaded clamping sleeve block; 27. Second threaded clamping sleeve block; 28. Gear reduction clamping motor; 29. ​​Connecting bracket; 30. Inclined screening noise reduction cylinder; 31. Controller; 32. Arc-shaped screening screen; 33. Screening rotating plate; 34. Screening rotating shaft; 35. Rotary motor; 36. Linkage positioning rotating shaft; 37. Linkage gear ring; 38. Drive gear ring; 39. Drive gear reduction motor; 40. Induction support block; 41. Distance sensor; 42. Insertion support column; 43. Insertion rod; 44. Electric cylinder. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] As attached Figure 1-8 The present invention relates to an intelligent screening and noise reduction rice milling machine. This intelligent screening and noise reduction rice milling machine is equipped with an expansion unblocking mechanism, a precision locking component, and a screening and discharging component. The configuration of each mechanism and component can automatically handle the blockage of the rice milling machine without waiting for maintenance personnel to arrive on site. The maintenance time of the rice milling roller is greatly reduced, and it does not require operation by non-professionals, thus effectively improving safety. The specific structural configuration of each mechanism and component is as follows.

[0033] In some embodiments, as shown in the appendix Figure 1-3 As shown, the extended unblocking mechanism includes a support column 4 installed at the top of the linkage support plate 3. A hinged collar frame 5 is installed on the outer wall of the support column 4 near its top. A fixed shaft 6 is installed inside the hinged collar frame 5 away from the support column 4. A threaded sleeve support block 7 is fixedly connected to the bottom end of the fixed shaft 6. A guide rectangular frame plate 10 is horizontally slidably connected to the outer wall of the threaded sleeve support block 7. Linkage toothed plates 19 are installed at both the front and rear of the threaded sleeve support block 7. A precision locking component is provided on one side of the linkage toothed plate 19. A screening and pouring component is installed below the first crushing shell 1.

[0034] In some embodiments, as shown in the appendix Figure 2-3 As shown, a linkage screw 8 is threadedly connected to the inner wall of the threaded sleeve support block 7 near its bottom end. One end of the linkage screw 8 extends to the outside of the guide rectangular frame plate 10 and is coaxially connected to a reduction drive motor 9, so that the reduction drive motor 9 can be started by the controller 31 to drive the linkage screw 8 to rotate clockwise inside the guide rectangular frame plate 10, facilitating the rotational drive of the linkage screw 8. A support block 11 is installed on one side of the outer wall of the reduction drive motor 9, and the support block 11 is fixedly connected to both the guide rectangular frame plate 10 and the reduction drive motor 9, so that the support block 11 can support the reduction drive motor 9 and increase the stability of the reduction drive motor 9 during use. A limiting ring 12 is fixedly installed on the outer wall of the fixed shaft 6 near its top end to limit the hinged collar frame 5. A rice milling roller 13 is rotatably connected between the first crushing shell 1 and the second crushing shell 2, and one end of the rice milling roller 13 is fixedly connected to the center. A transmission rod 14 is connected, and a geared motor 15 is coaxially connected to one end of the transmission rod 14. The geared motor 15 is fixedly installed between the guide rectangular frame plate 10. A linkage collar frame 16 is welded to the bottom of each linkage support plate 3. A guide support rod 17 is slidably connected inside each linkage collar frame 16 near its bottom end. A support linkage frame 18 is welded between two guide support rods 17 to fix the geared motor 15, so that the two hinged collar frames 5 can be vertically limited by the limiting ring 12. The linkage support plate 3 drives the linkage collar frame 16 to slide along the outer wall of the guide support rod 17. The support linkage frame 18 can support the guide support rod 17 and increase the stability of the guide support rod 17. The geared motor 15 is started to drive the transmission rod 14 to rotate. The transmission rod 14 drives the rice milling roller 13 to rotate. The rice milling roller 13 rotates and discharges the rice impurities stuck on its outside.

[0035] In some embodiments, as shown in the appendix Figure 2-6As shown, the precision locking assembly includes a gear 23 that engages and clamps on one side of a linkage gear plate 19. A sensing block 20 is fixedly connected to the top of one of the linkage gear plates 19. A linkage clamping column 22 is rotatably connected inside the clamping gear 23, and a proximity switch 21 parallel to the sensing block 20 is installed at the top of the linkage clamping column 22. A guide frame plate 24 is fixedly connected to the bottom end of the guide rectangular frame plate 10 at its middle position. A bidirectional locking screw 25 is rotatably connected inside the guide frame plate 24, and the outer wall of the bidirectional locking screw 25... From right to left, a first threaded clamping sleeve 26 and a second threaded clamping sleeve 27 are connected by threads. One end of the bidirectional locking screw 25 is coaxially driven by a reduction clamping motor 28. The bottom ends of the first threaded clamping sleeve 26 and the second threaded clamping sleeve 27 are both fixedly connected to a connecting bracket 29. The inner wall of the connecting bracket 29 is fixedly connected to the outer wall of the linkage clamping column 22. The first threaded clamping sleeve 26 and the second threaded clamping sleeve 27 are both slidably connected to the guide frame plate 24. The two threads on the outer wall of the bidirectional locking screw 25 are opposite and symmetrically arranged.

[0036] In some embodiments, as shown in the appendix Figure 7-8 As shown, the screening and feeding assembly includes an inclined screening and noise reduction cylinder 30 installed below the first crushing shell 1. An arc-shaped screening screen 32 is fixedly connected inside the inclined screening and noise reduction cylinder 30. A controller 31 is fixedly connected to one side of the outer wall of the inclined screening and noise reduction cylinder 30. Multiple rotating screening plates 33 are installed above the arc-shaped screening screen 32. A screening rotating shaft 34 is provided on one side of the screening rotating plate 33, with one end extending to the outside of the inclined screening and noise reduction cylinder 30. A rotary motor 35 is coaxially connected to one end of the screening rotating shaft 34. A linkage positioning rotating shaft 36, which is rotatably connected to the inclined screening and noise reduction cylinder 30, is installed above the rotary motor 35. A linkage gear ring 37 is fixedly installed on the outer wall of the linkage positioning rotating shaft 36. A drive gear is meshed and connected to one side of the outer wall of the linkage gear ring 37. A ring 38 is included, and a drive gear motor 39 is embedded and fixedly connected to one side of the drive gear ring 38. A sensing support block 40 is fixedly connected to the outer wall of the linkage positioning shaft 36 near one end. Multiple plug-in support columns 42 are arranged in a circular pattern at equal intervals on one side of the linkage positioning shaft 36. A plug-in rod 43 is fixedly connected to one end of the plug-in support column 42. A distance sensor 41 for sensing the sensing support block 40 is installed on the upper part of the outer wall of the plug-in rod 43. An electric cylinder 44 is fixedly connected to one end of the plug-in rod 43. The plug-in support column 42 and the linkage positioning shaft 36 are horizontally slidably plugged in. The electric cylinder 44 is fixedly connected to the rotary motor 35. The rotary motor 35 and the drive gear motor 39 are both fixedly connected to the inclined screening noise reduction cylinder 30.

[0037] The intelligent screening and noise reduction rice milling machine of this invention is used as follows:

[0038] During processing, rice is placed inside the first and second grinding shells 1 and 2. The controller 31 starts the reduction motor 15 to drive the transmission rod 14 to rotate, and the support linkage frame 18 supports the reduction motor 15. The rice milling roller 13 drives the rice to rotate and be milled and separated inside the first and second grinding shells 1 and 2. After separation, the bran and rice grains enter the inclined screening and noise reduction cylinder 30. The controller 31 starts the rotary motor 35 to drive the screening shaft 34 to rotate. The screening shaft 34 drives multiple screening plates 33 to rotate inside the arc-shaped screening screen 32. The arc-shaped screening screen 32 can pass the finer bran through the mesh of the arc-shaped screening screen 32 and discharge it to the bottom. The rice grains are discharged to the right and outward along the arc-shaped screening screen 32. Rotary screening and cleaning does not require vibration treatment, and the noise is greatly reduced, realizing the screening and noise reduction rice milling operation.

[0039] When tilting and unloading, the drive reduction motor 39 is started, driving the drive gear ring 38 to rotate clockwise. The drive gear ring 38 drives the linkage gear ring 37 to rotate clockwise. The linkage gear ring 37 drives the linkage positioning shaft 36 to rotate counterclockwise 120 degrees on the tilted screening noise reduction cylinder 30. At the same time, the linkage positioning shaft 36 drives the support linkage frame 18, causing the reduction motor 15 to drive the transmission rod 14 to rotate. The transmission rod 14 drives the rice milling roller 13, causing the first milling shell 1 and the second milling shell 2 to rotate and tilt, tilting the large amount of rice contained inside the first milling shell 1 and the second milling shell 2 outwards to a designated area, or to be collected in baskets. After the rice is discharged, the drive reduction motor 39 can be started to drive the drive gear ring 38 to rotate counterclockwise. The drive gear ring 38 drives the linkage gear ring 37 to reverse, and the linkage gear ring 37 drives the linkage positioning shaft 36 to rotate the support linkage frame 18 clockwise to reset. The linkage positioning shaft 36 also drives the sensing block 40 to rotate. When the sensing block 40 and the distance sensor 41 are on the same horizontal line, the data sensed by the distance sensor 41 on the sensing block 40 is the same as the data set by the controller 31. Then the drive of the rotating motor 35 is stopped, and the electric cylinder 44 is started to drive the plug rod 43 to move to the right. The plug rod 43 drives multiple plug pillars 42 to move to the right. The plug pillars 42 are inserted into the holes of the linkage positioning shaft 36, which locks and fixes the position of the linkage positioning shaft 36 after the rice is tilted.

[0040] When blockage occurs, when the first and second grinding shells 1 and 2 come into contact with the rice milling roller 13 and become blocked, the controller 31 starts the reduction drive motor 9, which drives the linkage screw 8 to rotate clockwise inside the guide rectangular frame plate 10. The support block 11 supports the reduction drive motor 9. The linkage screw 8 drives the threaded sleeve support block 7 to move to the right along the inside of the guide rectangular frame plate 10 under the action of the threads. Simultaneously, the threaded sleeve support block 7 drives the fixed shaft 6 to move the two hinged collar frames 5 to the right. At the same time, the two hinged collar frames 5 rotate on the outer wall of the fixed shaft 6. The limiting ring 12 then vertically limits the two hinged collar frames 5. The hinged collar frame 5 can drive the two support columns 4 to move away from each other. The support columns 4 drive the linkage support plate 3 to move the second crushing shell 2 forward and the first crushing shell 1 backward. At the same time, the linkage support plate 3 drives the linkage collar frame 16 to slide along the outer wall of the guide support rod 17. The support linkage frame 18 can support the guide support rod 17 and increase the stability of the guide support rod 17. A larger opening is opened between the first crushing shell 1 and the second crushing shell 2. Then, the reduction motor 15 is started to drive the transmission rod 14 to rotate. The transmission rod 14 drives the rice milling roller 13 to rotate. The rice milling roller 13 rotates and discharges the rice impurities stuck on its outside.

[0041] When the limit lock is engaged, the linkage toothed plate 19 moves the sensing block 20, and simultaneously the linkage toothed plate 19 meshes with the clamping gear 23. The clamping gear 23 rotates stably on the outer wall of the linkage clamping column 22. When the sensing block 20 makes contact with the sensing end of the proximity switch 21, the controller 31 starts the reduction clamping motor 28 fixed on the guide frame plate 24. The reduction clamping motor 28 drives the bidirectional locking screw 25 to rotate in the forward direction inside the guide frame plate 24. The second threaded clamping sleeve 27 slides inside the guide frame plate 24, while the first threaded clamping sleeve 26 slides inside the guide frame plate 24. The parts move, the second threaded clamping sleeve 27 and the first threaded clamping sleeve 26 are relatively close, and the second threaded clamping sleeve 27 and the first threaded clamping sleeve 26 respectively drive the two connecting brackets 29 to move. The connecting brackets 29 drive the linkage clamping column 22 to move the proximity switch 21. At the same time, the linkage clamping column 22 drives the clamping gear 23 to press against one side of the outer wall of the linkage tooth plate 19, which can limit and lock the entire linkage tooth plate 19 position, and prevent personnel from starting the deceleration drive motor 9 to cause the first crushing shell 1 and the second crushing shell 2 to clamp and injure other personnel. After the treatment is completed;

[0042] When closed, the reduction clamping motor 28 drives the bidirectional locking screw 25 to rotate in the opposite direction inside the guide frame plate 24, the second threaded clamping sleeve 27 slides inside the guide frame plate 24, and at the same time the first threaded clamping sleeve 26 moves inside the guide frame plate 24. The second threaded clamping sleeve 27 and the first threaded clamping sleeve 26 are relatively close to each other, and the second threaded clamping sleeve 27 and the first threaded clamping sleeve 26 respectively drive the two connecting brackets 29 to move. The clamping gear 23 no longer squeezes and limits the linkage tooth plate 19. Then, the controller 31 starts the reduction drive motor 9 to drive the linkage screw 8 to rotate in the opposite direction inside the guide rectangular frame plate 10. 8 drives the threaded sleeve support block 7 to move to the left along the inside of the guide rectangular frame plate 10 under the action of the thread. At the same time, the threaded sleeve support block 7 drives the fixed shaft rod 6 to move the two hinged collar frames 5 to the left. Simultaneously, the two hinged collar frames 5 rotate on the outer wall of the fixed shaft rod 6. The two hinged collar frames 5 can respectively drive the two support columns 4 to move closer to each other. The support columns 4 drive the linkage support plate 3 to move the second rolling shell 2 backward and the first rolling shell 1 forward. The first rolling shell 1 and the second rolling shell 2 squeeze and close the linkage support plate 3, which quickly performs intelligent automatic inspection and repair of the blockage position, making subsequent maintenance more time-saving and labor-saving.

[0043] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0044] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A smart screening and noise-reducing rice milling machine, comprising a first milling shell (1), a second milling shell (2) movably connected to one side of the first milling shell (1), and a linkage support plate (3) fixedly connected to the opposite side of both the second milling shell (2) and the first milling shell (1), characterized in that: An extended unblocking mechanism is installed at the top of the linkage support plate (3); The extended unblocking mechanism includes a support column (4) installed at the top of the linkage support plate (3). A hinged collar frame (5) is installed on the outer wall of the support column (4) near its top. A fixed shaft (6) is installed inside the hinged collar frame (5) away from the support column (4). A threaded sleeve support block (7) is fixedly connected to the bottom end of the fixed shaft (6). A guide rectangular frame plate (10) is horizontally slidably connected to the outer wall of the threaded sleeve support block (7). Linkage toothed plates (19) are installed at both the front and rear sides of the threaded sleeve support block (7). A precision locking component is provided on one side of the linkage toothed plate (19). A screening and pouring component is installed below the first crushing shell (1).

2. The intelligent screening and noise reduction rice milling machine as described in claim 1, characterized in that: Two hinged collar frames (5) are arranged at equal intervals from bottom to top, and both hinged collar frames (5) are rotatably connected to the fixed shaft (6).

3. The intelligent screening and noise reduction rice milling machine as described in claim 1, characterized in that: The support column (4) and the linkage support plate (3) are integrally formed by die casting, and the support column (4) is rotatably connected to the hinged collar frame (5). The two linkage support plates (3) are symmetrically arranged.

4. The intelligent screening and noise reduction rice milling machine as described in claim 1, characterized in that: The inner wall of the threaded sleeve support block (7) is threaded with a linkage screw (8) near its bottom end. One end of the linkage screw (8) extends to the outside of the guide rectangular frame plate (10) and is coaxially connected to a reduction drive motor (9).

5. The intelligent screening and noise reduction rice milling machine as described in claim 4, characterized in that: A support block (11) is installed on one side of the outer wall of the speed reduction drive motor (9), and the support block (11) is fixedly connected to the guide rectangular frame plate (10) and the speed reduction drive motor (9).

6. The intelligent screening and noise reduction rice milling machine as described in claim 1, characterized in that: A limiting ring (12) for limiting the hinged collar frame (5) is fixedly installed on the outer wall of the fixed shaft (6) near its top. A rice milling roller (13) is rotatably connected between the first crushing shell (1) and the second crushing shell (2). A transmission rod (14) is fixedly connected to the center of the rice milling roller (13). A geared motor (15) is coaxially connected to one end of the transmission rod (14). The geared motor (15) is fixedly installed between the guide rectangular frame plate (10). A linkage collar frame (16) is welded to the bottom of each linkage support plate (3). A guide support rod (17) is slidably connected inside each linkage collar frame (16) near its bottom. A support linkage frame (18) for fixing the geared motor (15) is welded between the two guide support rods (17).

7. The intelligent screening and noise reduction rice milling machine as described in claim 1, characterized in that: The precision locking assembly includes a meshing transmission clamping gear (23) on one side of the linkage gear plate (19), a sensing block (20) fixedly connected to the top of one of the linkage gear plates (19), a linkage clamping column (22) rotatably connected inside the clamping gear (23), and a proximity switch (21) parallel to the sensing block (20) installed at the top of the linkage clamping column (22). A guide frame plate (24) is fixedly connected to the bottom end of the guide rectangular frame plate (10) and located at its middle position. The part is rotatably connected to a bidirectional locking screw (25), and the outer wall of the bidirectional locking screw (25) is threaded with a first threaded clamping sleeve (26) and a second threaded clamping sleeve (27) from right to left. One end of the bidirectional locking screw (25) is coaxially driven by a reduction clamping motor (28). The bottom ends of the first threaded clamping sleeve (26) and the second threaded clamping sleeve (27) are both fixedly connected to a connecting bracket (29). The inner wall of the connecting bracket (29) is fixedly connected to the outer wall of the linkage clamping column (22).

8. The intelligent screening and noise reduction rice milling machine as described in claim 7, characterized in that: The first threaded clamping sleeve (26) and the second threaded clamping sleeve (27) are both slidably connected to the guide frame plate (24), and the two threads on the outer wall of the bidirectional locking screw (25) are opposite and symmetrically arranged.

9. The intelligent screening and noise reduction rice milling machine as described in claim 1, characterized in that: The screening and feeding assembly includes an inclined screening and noise reduction cylinder (30) installed below the first crushing shell (1), and an arc-shaped screening screen (32) is fixedly connected inside the inclined screening and noise reduction cylinder (30). A controller (31) is fixedly connected to one side of the outer wall of the inclined screening and noise reduction cylinder (30). Multiple rotating screening plates (33) are installed above the arc-shaped screening screen (32). A screening rotating shaft (34) with one end extending to the outside of the inclined screening and noise reduction cylinder (30) is provided on one side of the screening rotating plate (33). A rotary motor (35) is coaxially connected to one end of the screening rotating shaft (34). A linkage positioning rotating shaft (36) rotatably connected to the inclined screening and noise reduction cylinder (30) is installed above the rotary motor (35). A linkage gear ring (37) is fixedly installed on the outer wall of the linkage positioning shaft (36). A drive gear ring (38) is meshed and connected to one side of the outer wall of the linkage gear ring (37). A drive reduction motor (39) is fixedly embedded on one side of the drive gear ring (38). A sensing support block (40) is fixedly connected to the outer wall of the linkage positioning shaft (36) near one end. A plurality of plug-in support columns (42) are arranged in a circular and equidistant pattern on one side of the linkage positioning shaft (36). A plug-in rod (43) is fixedly connected to one end of the plug-in support column (42). A distance sensor (41) for sensing the sensing support block (40) is installed on the upper part of the outer wall of the plug-in rod (43). An electric cylinder (44) is fixedly connected to one end of the plug-in rod (43).

10. The intelligent screening and noise reduction rice milling machine as described in claim 9, characterized in that: The insertion support column (42) is horizontally slidably inserted into the linkage positioning shaft (36), and the electric cylinder (44) is fixedly connected to the rotary motor (35). The rotary motor (35) and the drive reduction motor (39) are both fixedly connected to the inclined screening noise reduction cylinder (30).

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