A quick-frozen corn kernel roller screen classifier

Abstract

This utility model discloses a quick-freezing corn kernel rotary grading machine, including a support frame, a rotating frame above the support frame, an installation frame between two adjacent rotating frames, a filter screen on the outside of the installation frame, a snap-fit ​​sleeve on the outside of the filter screen, a snap-fit ​​rod in the snap-fit ​​sleeve, a control sleeve on the outside of the snap-fit ​​sleeve, a drive wheel on one side of the control sleeve, multiple driven wheels on the outside of the drive wheel, a screw sleeve on one side of the driven wheel, a screw rod in the screw sleeve, a movable sleeve at one end of the screw rod, a control sleeve on the outside of the snap-fit ​​sleeve, a movable frame on one side of the control sleeve, a movable rod in the movable frame, a movable plate at one end of the movable rod, a control groove in the control sleeve, a control block in the control groove, a snap-fit ​​block on one side of the control block, a snap-fit ​​groove on the outside of the snap-fit ​​rod, and a movable groove on the outside of the snap-fit ​​sleeve. This utility model enables convenient disassembly and maintenance of the filter screen without the need for tools, and ensures the installation stability of the filter screen.

Description

Technical Field

[0001] This utility model relates to the field of quick-frozen corn kernel rotisserie grading technology, and more specifically, to a quick-frozen corn kernel rotisserie grading machine. Background Technology

[0002] With the rapid development of the frozen food industry and the increasing demands of consumers for product quality, the uniform grading of frozen corn kernels has become a key step in ensuring the consistency of product appearance and the uniformity of cooking. As the core equipment in the frozen corn kernel production line, the performance of the rotary screen grading machine directly affects the grading accuracy and production efficiency of the product. However, in the existing technical solutions, there are still many technical problems to be solved in terms of filter screen design and maintenance of the rotary screen grading machine for frozen corn kernels.

[0003] Firstly, in the design of traditional quick-frozen corn kernel rotary screen grading machines, in order to achieve precise separation of corn kernels of different sizes, multiple layers of filter screens with different mesh sizes are usually used to surround the outer layer for screening and grading. These filter screens are arranged in order of particle size to separate the corn kernels into multiple grades. However, the installation and disassembly of the filter screens in this type of grading machine usually requires the assistance of various special tools such as wrenches, screwdrivers, and Allen wrenches. The operation process is cumbersome and complicated, extremely time-consuming and labor-intensive, and can easily cause deformation or damage to the filter screens. More seriously, during the high-load season of quick-frozen corn production, the equipment often needs to run continuously, and filter screen clogging occurs. Each cleaning and maintenance requires stopping the machine for disassembly and maintenance. Due to the complexity of disassembly and assembly, it not only seriously affects production efficiency and capacity, but may also cause the quality of semi-finished products on the production line to decline due to excessive residence time. In addition, due to the cumbersome cleaning and maintenance operations, some production enterprises extend the filter screen cleaning cycle in pursuit of efficiency, resulting in the filter screens operating in a semi-clogged state for a long time. This not only reduces the grading accuracy and product quality consistency, but also increases equipment energy consumption and mechanical wear, and shortens the service life of the equipment.

[0004] Secondly, while some improved rotary screen classifiers on the market have indeed superficially achieved convenient disassembly and assembly of the filter screen, thus shortening the operation time for cleaning and replacing the filter screen, these improved designs still have significant shortcomings in practical applications: their quick-connect structure design is too simple and crude, lacking an effective locking mechanism. These design defects lead to the connection parts being prone to fatigue loosening or even sudden detachment in actual production environments, especially under complex working conditions such as rotary screen classifier rotation, strong vibration, and impact loads. More seriously, once the filter screen parts become partially loose during operation, they may gradually deteriorate without being noticed until they completely detach. If the filter screen suddenly detaches during operation, it will not only cause the screening system to fail instantly, producing a large number of unqualified products, but may also lead to serious consequences such as equipment damage, safety accidents, and forced long-term shutdown of the production line. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a quick-frozen corn kernel rotary screen grading machine to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick-frozen corn kernel rotary sieve grading machine, comprising a support frame, a rotating frame above the support frame, an mounting frame between two adjacent rotating frames, a filter screen on the outer side of the mounting frame, a snap-fit ​​sleeve detachably attached to the outer side of the filter screen, a snap-fit ​​rod detachably attached to the snap-fit ​​sleeve, a control sleeve rotatably attached to the outer side of the snap-fit ​​sleeve, a drive wheel fixedly connected to one side of the control sleeve, multiple driven wheels on the outer side of the drive wheel, the multiple driven wheels respectively meshing with the drive wheel, a screw sleeve fixedly connected to one side of the driven wheel, a screw rod attached to the screw sleeve, and the screw sleeve... The screw is movably connected to a threaded rod. One end of the screw is fixedly connected to a movable sleeve, which is slidably fitted onto the outside of a snap-fit ​​sleeve. A control sleeve is rotatably mounted on the outside of the snap-fit ​​sleeve. A movable frame is fixedly mounted on one side of the control sleeve. A movable rod is slidably mounted in the movable frame. One end of the movable rod is connected to a movable plate. A control groove is opened in the control sleeve. A control block is movably mounted in the control groove. A snap-fit ​​block is fixedly connected to one side of the control block. A snap-fit ​​groove is opened on the outside of the snap-fit ​​rod. The snap-fit ​​block snaps into the snap-fit ​​groove. A movable groove is opened on the outside of the snap-fit ​​sleeve. One end of the movable rod is inserted into the movable groove.

[0009] The present invention is further configured such that a motor is detachably mounted on one side of the upper part of the bracket, a reducer is detachably connected to the output end of the motor, a connecting rod is connected to one side of the rotating frame at both ends, the connecting rod is rotatably connected to the bracket, and a sprocket is detachably mounted on the output end of the reducer and one end of one of the connecting rods, and a chain is sleeved on the outside of the sprocket.

[0010] The present invention is further configured such that the support is detachably provided with multiple feeding bins, the positions of the feeding bins correspond to the positions of the filter screens, and the diameters of the filter holes opened on the side walls of the multiple filter screens gradually increase, and the support is detachably provided with a discharge bin on one side.

[0011] The present invention is further configured such that an mounting plate is fixedly provided on the outer side of the snap-fit ​​sleeve, and a plurality of the screw sleeves are rotatably mounted on the mounting plate.

[0012] The present invention is further configured such that a movable spring is connected to one side of the movable plate, the movable spring is movably sleeved on the outside of the movable rod, and the other end of the movable spring is connected to the movable frame, so as to ensure that the movable rod and the movable plate can slide inward and reset accurately.

[0013] The present invention is further configured such that one end of the moving rod and the edge of the inner wall of the moving groove are both designed with rounded corners, ensuring that the moving rod can slide smoothly out of the moving groove.

[0014] The present invention is further configured such that a spring is connected to one side of the snap-fit ​​block, and the other end of the spring is connected to the inner wall of the snap-fit ​​sleeve.

[0015] The present invention is further configured such that the inner wall of the control groove adopts a beveled structure design, which ensures the precise movement of the control block and the snap-fit ​​block.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a quick-frozen corn kernel rotary screen grading machine, which has the following beneficial effects:

[0018] 1. The unique quick-assembly and disassembly mechanism, composed of components such as a snap-fit ​​sleeve, snap-fit ​​rod, control sleeve, control block, and snap-fit ​​block, effectively solves the technical problem of cumbersome and time-consuming filter installation and disassembly in traditional grading machines. The equipment uses a connection method where the snap-fit ​​sleeve and snap-fit ​​rod work together. Operators only need to rotate the control sleeve forward, causing the inner control groove to rotate clockwise. Simultaneously, the inclined structure on the inner wall of the control groove pushes the control block, causing the snap-fit ​​block to be pulled out of the snap-fit ​​groove. This allows for easy removal of the snap-fit ​​sleeve and snap-fit ​​rod, and quick removal of the mounting bracket along with the filter for cleaning or replacement. This quick-assembly and disassembly method, which eliminates the need for special tools such as wrenches and screwdrivers, greatly simplifies the operation process, reduces maintenance time, and enables the equipment to quickly resume operation during high-load production seasons. It effectively improves production efficiency and capacity, reduces the risk of semi-finished product quality degradation caused by prolonged downtime, reduces the labor intensity of operators, and avoids filter deformation and damage caused by improper operation.

[0019] 2. The multi-locking mechanism design, comprised of components such as the moving sleeve, moving rod, moving frame, moving spring, control sleeve, driving wheel, driven wheel, screw sleeve, and screw, solves the technical defects of the simple and unstable connection structure of existing improved classifiers. After the filter screen is installed, the moving spring resets, pulling the moving plate and causing the moving rod to slide inward, allowing one end of the moving rod to re-insert into the moving groove. Then, by rotating the control sleeve in the opposite direction, the driving wheel and driven wheel rotate, causing the screw sleeve to rotate forward on the mounting plate. The screw causes the moving sleeve to slide and reset. The inner wall of the moving sleeve limits the outer wall of the moving plate, preventing the moving plate and moving rod from sliding outward. This dual locking mechanism, where the moving rod and moving groove cooperate to limit the rotation of the control sleeve, and the moving sleeve simultaneously limits the outward sliding of the moving plate, ensures that the connecting components will not loosen or fall off under complex operating conditions such as high-speed rotation, strong vibration, and impact loads of the rotary screen classifier. This effectively avoids serious consequences such as screening system failure, equipment damage, and forced production line shutdown, improving the operational stability and safety of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a quick-frozen corn kernel rotary screen grading machine according to the present invention;

[0021] Figure 2 This is a schematic diagram of the dispersed structure of the support and filter parts in this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the snap-fit ​​sleeve, snap-fit ​​rod, control sleeve, moving sleeve and control sleeve in this utility model;

[0023] Figure 4 This is a schematic diagram of the dispersed structure of the snap-fit ​​sleeve, snap-fit ​​rod, control sleeve, moving sleeve and control sleeve in this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the card sleeve, control sleeve, moving sleeve and control sleeve in this utility model.

[0025] In the diagram: 1. Bracket; 2. Rotating frame; 3. Mounting frame; 4. Filter screen; 5. Snap-fit ​​sleeve; 6. Snap-fit ​​rod; 7. Control sleeve; 8. Drive wheel; 9. Driven wheel; 10. Screw sleeve; 11. Screw; 12. Moving sleeve; 13. Control sleeve; 14. Moving frame; 15. Moving rod; 16. Moving plate; 17. Control slot; 18. Control block; 19. Snap-fit ​​block; 20. Snap-fit ​​slot; 21. Moving slot; 22. Motor; 23. Reducer; 24. Connecting rod; 25. Sprocket; 26. Chain; 27. Feeding bin; 28. Discharge bin; 29. ​​Mounting plate; 30. Moving spring; 31. Spring. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A quick-frozen corn kernel rotary grading machine includes a support frame 1, a rotating frame 2 above the support frame 1, and a mounting frame 3 between two adjacent rotating frames 2. A filter screen 4 is mounted on the outside of the mounting frame 3, and a snap-fit ​​sleeve 5 is detachably mounted on the outside of the filter screen 4. A snap-fit ​​rod 6 is detachably mounted in the snap-fit ​​sleeve 5. A control sleeve 7 is rotatably mounted on the outside of the snap-fit ​​sleeve 5. A drive wheel 8 is fixedly connected to one side of the control sleeve 7. Multiple driven wheels 9 are mounted on the outside of the drive wheel 8, and each driven wheel 9 meshes with the drive wheel 8. A screw sleeve 10 is fixedly connected to one side of each driven wheel 9, and a screw 11 is mounted in the screw sleeve 10. The screw sleeve 10 is movably connected to the screw 11 via threads. A movable sleeve 12 is fixedly connected to one end of the snap-fit ​​sleeve 5. The movable sleeve 12 is slidably fitted on the outside of the snap-fit ​​sleeve 5. A control sleeve 13 is rotatably provided on the outside of the snap-fit ​​sleeve 5. A movable frame 14 is fixedly provided on one side of the control sleeve 13. A movable rod 15 is slidably provided in the movable frame 14. A movable plate 16 is connected to one end of the movable rod 15. A control groove 17 is opened in the control sleeve 13. A control block 18 is movably provided in the control groove 17. A snap-fit ​​block 19 is fixedly connected to one side of the control block 18. A snap-fit ​​groove 20 is opened on the outside of the snap-fit ​​rod 6. The snap-fit ​​block 19 is snapped into the snap-fit ​​groove 20. A movable groove 21 is opened on the outside of the snap-fit ​​sleeve 5. One end of the movable rod 15 is inserted into the movable groove 21.

[0030] A motor 22 is detachably mounted on one side of the upper part of the bracket 1. A reducer 23 is detachably connected to the output end of the motor 22. A connecting rod 24 is connected to one side of the rotating frame 2 at both ends. The connecting rod 24 is rotatably connected to the bracket 1. A sprocket 25 is detachably mounted on the output end of the reducer 23 and one end of one of the connecting rods 24. A chain 26 is sleeved on the outside of the sprocket 25.

[0031] The bracket 1 is detachably provided with multiple feeding bins 27, the positions of the feeding bins 27 correspond to the positions of the filter screens 4, and the diameter of the filter holes opened on the side walls of the multiple filter screens 4 increases progressively. The bracket 1 is detachably provided with a discharge bin 28 on one side.

[0032] In this embodiment, when the device is needed, the corn kernels to be screened and graded are first fed into the filter screen 4 from the side without the motor 22. Then, the motor 22 is turned on, causing the motor 22 to drive the sprocket 25 connected to the output end to rotate slowly after being reduced in speed by the reducer 23. Then, the sprocket 25 drives the sprocket 25 connected to one end of the connecting rod 24 to rotate through the chain 26 sleeved on the outside. This causes the sprocket 25 to drive the connecting rod 24 to rotate, thereby driving the rotating frame 2 connected to it to rotate. The rotating frame 2 then drives the mounting bracket 3 on one side to rotate, which in turn drives the filter screen 4 to rotate, and then drives the rotating frame 2 on the other side of the rotating frame 2 to rotate. The movement causes all the rotating frames 2, mounting frames 3, and filter screens 4 to rotate. Corn kernels smaller than the diameter of the filter holes in the filter screen 4 will fall through the filter screen 4 into the feeding hopper 27 below. The fallen corn kernels will then fall through the inclined feeding hopper 27 into the external collection device. Since the side without the motor 22 is slightly higher than the side with the motor 22, the corn kernels roll in the filter screen 4 and enter the inner side of the next filter screen 4 due to gravity. Then, following the above steps, grading and screening are achieved. Finally, the corn kernels that do not pass through the filter holes on the side wall of the filter screen 4 will be output to the external collection device through the discharge hopper 28 installed on the other side of the support 1.

[0033] Please see Figures 3-5 As a further implementation of the overall equipment: a mounting plate 29 is fixedly provided on the outside of the snap-fit ​​sleeve 5, and multiple screw sleeves 10 are rotatably mounted on the mounting plate 29.

[0034] A movable spring 30 is connected to one side of the movable plate 16. The movable spring 30 is movably sleeved on the outside of the movable rod 15, and the other end of the movable spring 30 is connected to the movable frame 14.

[0035] Both the end of the moving rod 15 and the edge of the inner wall of the moving groove 21 adopt a rounded corner structure design.

[0036] A spring 31 is connected to one side of the snap-fit ​​block 19, and the other end of the spring 31 is connected to the inner wall of the snap-fit ​​sleeve 5.

[0037] The inner wall of the control channel 17 adopts a beveled structure design.

[0038] More specifically, when the filter screen 4 needs to be removed for maintenance, cleaning, or even replacement, first, rotate the control sleeve 7 clockwise. The control sleeve 7 drives the one-sided drive wheel 8 to rotate clockwise. Then, the drive wheel 8 drives the driven wheel 9, which meshes with it, to rotate synchronously in reverse. This causes the driven wheel 9 to drive the screw sleeve 10 to rotate in the opposite direction on the mounting plate 29. Then, the screw 11 will drive the moving sleeve 12 to slide, so that the moving sleeve 12 no longer limits the outer wall of the moving plate 16. Then, rotate the control sleeve 13 clockwise. The control sleeve 13 will drive the one-sided moving frame 14 to rotate clockwise. This causes the moving frame 14 to drive the moving rod 15, the moving spring 30, and the moving plate 16 to rotate clockwise. Then, the inner wall of the moving groove 21 presses against one end of the moving rod 15, causing one end of the moving rod 15 to slide out of the moving groove 21. The other end of the moving rod 15 is pulled outward by the moving plate 16, which drives the moving spring 30 to stretch outward. At the same time, the control sleeve 13 will drive the inner irregular structure of the control groove 17 to rotate in the forward direction, so that the inclined structure on one side of the inner wall of the control groove 17 pushes the control block 18 outward, so that the control block 18 drives the one-side locking block 19 to slide outward, so that the locking block 19 is pulled out from the locking groove 20, and the locking block 19 squeezes the spring 31 on one side. Then, the locking sleeve 5 and the locking rod 6 are pulled to both sides respectively, so that the locking sleeve 5 and the locking rod 6 can be removed here. Then, the other corresponding locking sleeves 5 and locking rods 6 are removed according to the above steps. Then, the mounting bracket 3 and the filter screen 4 are taken out from between the two rotating brackets 2, and then the filter screen 4 can be processed. After maintenance, cleaning, or replacement of filter 4, install the mounting bracket 3 along with filter 4 back to its original position, ensuring that the mounting plate 29 and the pre-drilled mounting holes on the rotating bracket 2 are concentrically aligned. Then, pass the locking rod 6 through the pre-drilled mounting holes on the rotating bracket 2 and mounting bracket 3 from one side, and then fit the locking sleeve 5 onto the outside of the locking rod 6 from the other side. Then, rotate the control sleeve 13 in the reverse direction, causing the control sleeve 13 to drive the moving spring 30, the moving rod 15, and the moving plate 16 to rotate in the reverse direction via the moving bracket 14. At the same time, the control sleeve 13 also drives the inner control groove 17 to rotate in the reverse direction, so that the inclined structure on one side of the inner wall of the control groove 17 no longer limits the control block 18, causing the spring 31 to push the locking block 19 on one side to slide inward and reset. The locking block 19 will cause one side of the control block 18 to slide inward and reset. Then, the locking block 19 will gradually lock into the locking groove 20. When the locking block 19 is fully locked into the locking groove 20, the control block 18 will be fully moved and reset, so that the other side of the inner wall of the control groove 17 limits the outer wall of the control block 18, preventing the control block 18 from sliding outward. At this time, the moving frame 14 will drive the moving rod 15 and other components to rotate and reset to the position corresponding to the original moving groove 21. Then, the moving spring 30 will reset and pull the moving plate 16, so that the moving plate 16 will drive one side of the moving rod 15 to slide inward and reset, so that one end of the moving rod 15 will be reinserted into the original moving groove 21. Then, the control sleeve 7 will be rotated in the opposite direction, which will drive one side of the drive wheel 8 to rotate in the opposite direction.Then, the driving wheel 8 drives the driven wheel 9, which meshes with it, to rotate forward. This causes the driven wheel 9 to drive the screw sleeve 10 to rotate forward on the mounting plate 29. The screw 11 then drives the movable sleeve 12 to slide and reset, limiting the inner wall of the movable sleeve 12 against the outer wall of the movable plate 16. This prevents the movable plate 16 and the movable rod 15 from sliding outward. The movable rod 15, in conjunction with the movable groove 21, then limits the rotation of the movable frame 14 and the control sleeve 13, preventing the control sleeve 13 from rotating accidentally. This achieves a stable installation of the mounting frame 3 and the filter screen 4.

[0039] In summary, when using or operating the equipment: First, the corn kernels to be screened and graded are fed into the filter screen 4 from the side without the motor 22. Then, the motor 22 is turned on, causing it to slowly rotate the sprocket 25 connected to its output end after being slowed down by the reducer 23. The sprocket 25, through the chain 26 sleeved on its outer side, drives one end of a connecting rod 24 to rotate. This causes the connecting rod 24 to rotate, which in turn drives the rotating frame 2 connected to it to rotate. The rotating frame 2 then drives the mounting bracket 3 on one side to rotate, which in turn drives the filter screen 4 to rotate, and finally drives the rotating frame on the other side of the rotating frame 2. 2. The rotation causes all the rotating frames 2, mounting frames 3, and filter screens 4 to rotate. Corn kernels smaller than the diameter of the filter holes in the filter screen 4 will fall through the filter screen 4 into the feeding hopper 27 below. The fallen corn kernels will then fall through the inclined feeding hopper 27 into the external collection device. Since the side without the motor 22 is slightly higher than the side with the motor 22, the corn kernels roll in the filter screen 4 and enter the inner side of the next filter screen 4 due to gravity. Then, following the above steps, the grading and screening are achieved. Finally, the corn kernels that do not pass through the filter holes on the side wall of the filter screen 4 will be output to the external collection device through the discharge hopper 28 installed on the other side of the support 1.

[0040] When the filter screen 4 needs to be removed for maintenance, cleaning, or even replacement, first rotate the control sleeve 7 clockwise. The control sleeve 7 drives the one-sided drive wheel 8 to rotate clockwise. Then, the drive wheel 8 drives the driven wheel 9, which meshes with it, to rotate synchronously in reverse. This causes the driven wheel 9 to drive the screw sleeve 10 to rotate in the opposite direction on the mounting plate 29. Then, the screw 11 will drive the moving sleeve 12 to slide, so that the moving sleeve 12 no longer limits the outer wall of the moving plate 16. Then, rotate the control sleeve 13 clockwise. The control sleeve 13 will drive the one-sided moving frame 14 to rotate clockwise. This causes the moving frame 14 to drive the moving rod 15, the moving spring 30, and the moving plate 16 to rotate clockwise. Then, the inner wall of the moving groove 21 presses against one end of the moving rod 15, causing one end of the moving rod 15 to slide out of the moving groove 21 and move... The other end of the moving rod 15 drives the moving spring 30 to stretch outward through the moving plate 16. At the same time, the control sleeve 13 drives the inner irregular structure of the control groove 17 to rotate in the forward direction, so that the inclined structure on one side of the inner wall of the control groove 17 pushes the control block 18 outward, causing the control block 18 to drive one side of the locking block 19 to slide outward, so that the locking block 19 is pulled out of the locking groove 20, and the locking block 19 squeezes the spring 31 on one side. Then, the locking sleeve 5 and the locking rod 6 are pulled to both sides respectively, so that the locking sleeve 5 and the locking rod 6 can be removed here. Then, the other corresponding locking sleeves 5 and locking rods 6 are removed by referring to the above steps. Then, the mounting bracket 3 and the filter screen 4 are taken out from between the two rotating brackets 2, and then the filter screen 4 can be maintained. After cleaning or replacing the filter screen 4, install the mounting bracket 3 along with the filter screen 4 back to its original position, ensuring that the mounting plate 29 and the pre-drilled mounting holes on the rotating bracket 2 are concentrically aligned. Then, pass the locking rod 6 through the pre-drilled mounting holes on the rotating bracket 2 and the mounting bracket 3 from one side, and then fit the locking sleeve 5 onto the outside of the locking rod 6 from the other side. Then, rotate the control sleeve 13 in the reverse direction, causing the control sleeve 13 to drive the moving spring 30, the moving rod 15, and the moving plate 16 to rotate in the reverse direction via the moving bracket 14. At the same time, the control sleeve 13 also drives the inner control groove 17 to rotate in the reverse direction, so that the inclined structure on one side of the inner wall of the control groove 17 no longer limits the control block 18, causing the spring 31 to push the locking block 19 on one side to slide inward and reset. The engaging block 19 will cause one side of the control block 18 to slide inward and reset. Then, the engaging block 19 will gradually engage into the engaging groove 20. When the engaging block 19 is fully engaged into the engaging groove 20, the control block 18 will fully move and reset, so that the other side of the inner wall of the control groove 17 limits the outer wall of the control block 18, preventing the control block 18 from sliding outward. At this time, the moving frame 14 will drive the moving rod 15 and other components to rotate and reset to the position corresponding to the original moving groove 21. Then, the moving spring 30 will reset and pull the moving plate 16, so that the moving plate 16 will drive one side of the moving rod 15 to slide inward and reset, so that one end of the moving rod 15 will be reinserted into the original moving groove 21. Then, the control sleeve 7 will rotate in the opposite direction, which will drive one side of the drive wheel 8 to rotate in the opposite direction.Then, the driving wheel 8 drives the driven wheel 9, which meshes with it, to rotate forward. This causes the driven wheel 9 to drive the screw sleeve 10 to rotate forward on the mounting plate 29. The screw 11 then drives the movable sleeve 12 to slide and reset, limiting the inner wall of the movable sleeve 12 against the outer wall of the movable plate 16. This prevents the movable plate 16 and the movable rod 15 from sliding outward. The movable rod 15, in conjunction with the movable groove 21, then limits the rotation of the movable frame 14 and the control sleeve 13, preventing the control sleeve 13 from rotating accidentally. This achieves a stable installation of the mounting frame 3 and the filter screen 4.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-frozen corn kernel rotary screen grading machine, comprising a support frame (1), characterized in that: A rotating frame (2) is provided above the bracket (1), and a mounting frame (3) is provided between two adjacent rotating frames (2). A filter screen (4) is provided on the outside of the mounting frame (3), and a snap-fit ​​sleeve (5) is provided on the outside of the filter screen (4). A snap-fit ​​rod (6) is provided in the snap-fit ​​sleeve (5), and a control sleeve (7) is provided on the outside of the snap-fit ​​sleeve (5). A drive wheel (8) is provided on one side of the control sleeve (7), and multiple driven wheels (9) are provided on the outside of the drive wheel (8). A screw sleeve (10) is provided on one side of the driven wheel (9), and a screw rod (11) is provided in the screw sleeve (10). A movable sleeve (12) is provided at one end of the screw rod (11), and the snap-fit ​​sleeve (5) is provided on the outside of the control sleeve (7). A control sleeve (13) is provided, a movable frame (14) is fixedly provided on one side of the control sleeve (13), a movable rod (15) is slidably provided in the movable frame (14), a movable plate (16) is connected to one end of the movable rod (15), a control groove (17) is provided in the control sleeve (13), a control block (18) is movably provided in the control groove (17), a snap-fit ​​block (19) is fixedly provided on one side of the control block (18), a snap-fit ​​groove (20) is provided on the outside of the snap-fit ​​rod (6), a movable groove (21) is provided on the outside of the snap-fit ​​sleeve (5), and one end of the movable rod (15) is inserted into the movable groove (21).

2. The quick-frozen corn kernel rotary screen grading machine according to claim 1, characterized in that: A motor (22) is detachably mounted on one side of the upper part of the bracket (1). A reducer (23) is detachably connected to the output end of the motor (22). A connecting rod (24) is connected to one side of the rotating frame (2) at both ends. The connecting rod (24) is rotatably connected to the bracket (1). A sprocket (25) is detachably mounted on the output end of the reducer (23) and one end of one of the connecting rods (24). A chain (26) is sleeved on the outside of the sprocket (25).

3. The quick-frozen corn kernel rotary screen grading machine according to claim 2, characterized in that: The bracket (1) is detachably provided with multiple feeding bins (27), the position of the feeding bins (27) corresponds to the position of the filter screen (4), and the diameter of the filter holes opened on the side wall of the multiple filter screens (4) increases step by step. The bracket (1) is detachably provided with a discharge bin (28) on one side.

4. A quick-frozen corn kernel rotary screen grading machine according to any one of claims 1-3, characterized in that: The outer side of the snap-fit ​​sleeve (5) is fixedly provided with an mounting plate (29), and a plurality of the screw sleeves (10) are rotatably mounted on the mounting plate (29).

5. A quick-frozen corn kernel rotary screen grading machine according to claim 4, characterized in that: A movable spring (30) is connected to one side of the movable plate (16). The movable spring (30) is movably sleeved on the outside of the movable rod (15). The other end of the movable spring (30) is connected to the movable frame (14).

6. A quick-frozen corn kernel rotary screen grading machine according to claim 5, characterized in that: Both the moving rod (15) and the inner edge of the moving groove (21) are designed with rounded corners.

7. The quick-frozen corn kernel rotary screen grading machine according to claim 1, characterized in that: A spring (31) is connected to one side of the snap-fit ​​block (19), and the other end of the spring (31) is connected to the inner wall of the snap-fit ​​sleeve (5).

8. A quick-frozen corn kernel rotary screen grading machine according to claim 7, characterized in that: The inner wall of the control groove (17) adopts a beveled structure design.

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