Impact type pulverizer for grain processing

Abstract

The invention relates to the field of flour mills, in particular to an impact type flour mill for grain processing, and solves the problems that impact cutting angles are the same, abrasion is large and long-term efficient flour milling is not facilitated due to the fact that impact components rotating at a high speed in an existing impact type flour mill for grain processing cannot be adjusted. The grinding machine comprises a base, a driving motor, a barrel cover, a mounting disc, a rotating shaft barrel, a grinding fluted disc, an I-shaped disc, a screen barrel, a short hammer head, a rotating frame, a connecting frame, a long hammer head, clamping frames, a driving assembly, a sliding plate frame, a first steel wire brush, an extension assembly, a frame, a circular ring and a steel wire brush ring, the rotating shaft barrel is further provided with a linkage assembly, and the linkage assembly is used for driving the rotating shaft barrel to slide in the clamping frames when the linkage assembly is driven to slide in the clamping frames. The circular ring can be driven to axially slide along the grinding barrel. The device can flexibly adjust the angle of impacting a grinding part, improves the grinding efficiency and effect, can reduce abrasion, and can discharge materials in time and operate stably.

Description

Technical Field

[0001] This invention relates to the field of grinding mills, and in particular to an impact grinding mill for grain processing. Background Technology

[0002] An impact mill for grain processing is a device that uses impact force to pulverize grain particles, commonly used in the processing of flour, starch, and other grain products. Its working principle typically utilizes high-speed rotating components, such as impellers, pins, and hammers, to give the material a huge centrifugal force or linear velocity. During this high-speed motion, the material continuously impacts these components and the inner wall of the machine casing, thus achieving pulverization. For example, the FSJZ43 impact mill uses a high-speed rotating impeller, pins, and impact rings to continuously impact the material, loosening the powder flakes, pulverizing the wheat kernels, and separating the endosperm from the bran.

[0003] However, existing impact mills for grain processing typically have fixed, non-adjustable high-speed rotating components. This results in uniform impact angles on grain particles during operation, creating dead zones in the impact. Furthermore, continuous impacts at the same angle increase wear on the high-speed rotating components and the fixed impact disc, leading to reduced impact grinding efficiency and effectiveness over long-term use. Therefore, this paper proposes an impact mill for grain processing. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes an impact mill for grain processing, which solves the problem that the high-speed rotating impact components in existing impact mills for grain processing are not adjustable, resulting in the same impact angle, greater wear, and hindering long-term efficient grinding.

[0005] To solve the above-mentioned technical problems, the basic technical solution proposed by this invention is as follows:

[0006] An impact mill for grain processing includes a base, a grinding cylinder and a drive motor mounted on the base, a cylinder cover mounted on the grinding cylinder, an installation plate mounted inside the grinding cylinder, a rotating shaft cylinder rotatably fitted inside the installation plate, the rotating shaft cylinder rotatably extending through to the outside of the grinding cylinder and connected to the output end of the drive motor, grinding toothed discs mounted on both the installation plate and the cylinder cover inside the grinding cylinder, an I-shaped disc fitted on the surface of the rotating shaft cylinder between the grinding toothed discs on both sides, a sieve cylinder fitted on the installation plate outside the grinding toothed discs, a plurality of short hammers arrayed on the outer side of the I-shaped disc, a plurality of rotating frames rotatably connected to the edge of the I-shaped disc at intervals from the short hammers, and a connecting frame and a long hammer head sequentially connected to the rotating frame along the radial outer side of the I-shaped disc, and a plurality of retaining frames corresponding to the rotating frames slidably connected inside the I-shaped disc;

[0007] The rotating cylinder and the I-shaped disk are equipped with a driving assembly. The driving assembly is used to drive each clamping frame to move away from each other and to engage with the rotating frame on one side of the rotating frame along the radial direction of the I-shaped disk. A sliding plate frame is slidably arranged inside the long hammer head. A wire brush is connected to the sliding plate frame. An extension assembly is provided on the connecting frame. When the clamping frame engages with the rotating frame, the extension assembly can also drive the sliding plate frame to extend radially along the I-shaped disk until it fits against the inner wall of the screen cylinder to clean the inner wall of the screen cylinder. A frame is fitted on the outer side of the mounting disk, and a ring is connected to the frame. A scraping ring for scraping the inner wall of the grinding cylinder and a wire brush ring for cleaning the outer side of the screen cylinder are respectively connected to the inner and outer sides of the ring. The rotating cylinder is also equipped with a linkage assembly. The linkage assembly is used to drive the ring to slide along the axial direction of the grinding cylinder when the sliding is driven in each clamping frame.

[0008] Preferably, the front end of the grinding cylinder is open, and the cylinder cover is hinged and fitted into the open, or bolted into the open. A feed funnel is installed on the cylinder cover and extends into the screen cylinder. The grinding toothed disc on the cylinder cover is fitted onto the outside of the feed funnel. A discharge port is opened at the lower end of the grinding cylinder. A rubber pad that buffers the outer edge of the I-shaped disc is also connected to the rotating frame.

[0009] Preferably, the mounting plate is connected to the inner wall of the grinding cylinder on the side away from the cylinder cover and is fitted onto the outer side of the rotating shaft cylinder. The screen cylinder is installed on the side of the mounting plate near the cylinder cover by bolts, and both ends of the screen cylinder are also open in the axial direction. The front end of the screen cylinder fits and seals against the cylinder cover and is fitted onto the outer side of the grinding toothed disc on the cylinder cover.

[0010] Preferably, both the short hammer and the long hammer extend to the front and rear sides of the I-shaped disk. The front and rear end faces of the I-shaped disk are also equipped with multiple layers of impact rods arranged in an array along its axial direction. The grinding toothed disk is connected with multiple layers of arc-shaped toothed plates arranged in an array. The arc-shaped toothed plates are arranged radially along the I-shaped disk between each layer of impact rods, or between the impact rods and the short hammer, or between the long hammer and the sieve cylinder.

[0011] Preferably, the drive assembly includes a cavity, a servo motor, a lead screw, a slide opening, and a collar. The cavity is located inside the rotating cylinder between the two grinding gear discs. The servo motor is mounted on the inner wall of one side of the cavity. One end of the lead screw is connected to the output end of the servo motor, and the other end is rotatably connected to the inner wall of the other side of the cavity. The slide openings are arrayed on the inner wall of the cavity and penetrate the outer surface of the rotating cylinder. The collar is threaded on the outside of the lead screw and slides inside the cavity. The outer side of the collar extends to the outside of each slide opening and is rotatably connected to a rotating plate between it and the corresponding radially corresponding retaining frame. The lead screw is a bidirectional lead screw with opposite threads at both ends. The collar is provided at both ends inside the cavity and is threaded on the opposite threads at both ends of the lead screw.

[0012] Preferably, the inner walls of both sides of the cavity are connected to a plurality of guide rods arranged in an array on the outside of the lead screw. The collar is also slidably sleeved on the outside of the guide rods. The I-shaped disk has a cavity, and the inner wall of the cavity has a plurality of openings that communicate with the circumferential surface of the I-shaped disk. The retaining frame slides in the opening on its respective side and cooperates with the rotating frame in its respective radial direction. The slide opening extends from the rotating shaft cylinder in an L-shape to the I-shaped disk and penetrates the cavity inside the I-shaped disk.

[0013] Preferably, the elongation component includes a limiting slide groove, a guide rod, and a sleeve. The limiting slide groove is formed on the inner walls of both sides of the connecting frame. The two ends of the guide rod are respectively connected to the upper and lower inner walls of the limiting slide groove. The sleeve is slidably connected to the connecting frame and the limiting slide groove, and is slidably sleeved on the outside of the guide rod. A spring is connected to the inner wall of the limiting slide groove near the center of the I-shaped plate and sleeved on the outside of the guide rod. The two ends of the sleeve also extend to the outside of the connecting frame and cooperate with the retaining frame to abut.

[0014] Preferably, the skateboard frame is further provided with limiting grooves at both ends along the axial direction of the I-shaped disc, and guide rods are connected to the inner walls of both sides of the limiting grooves. Sliding strips are slidably connected in the limiting grooves, and the sliding strips are slidably sleeved on the outside of the guide rods. Springs are also connected between the sliding strips and the inner walls of the limiting grooves on both sides away from each other, and springs are sleeved on the outside of the guide rods. A wire brush is connected to the outer side of the sliding strips along the radial direction of the I-shaped disc. A guide rod is connected to the lower end of the skateboard frame. A sleeve plate that cooperates with and abuts against the skateboard frame is sleeved on the outer side of the guide rod. A rotating plate is rotatably connected between the sleeve plate and the sliding strip on each side.

[0015] Preferably, the linkage assembly includes a second cavity, a second lead screw, and a second collar. The second cavity is located at one end of the rotating shaft cylinder near the output shaft of the drive motor and communicates with the first cavity. One end of the second lead screw is connected to the first lead screw, and the other end is rotatably connected to the inner wall of the second cavity. The upper and lower sides of the inner wall of the second cavity are provided with slide openings. The mounting plate is sleeved on the outer side of the second cavity and also has slide openings. The second collar is threaded onto the outer side of the second lead screw. The second collar is connected to a boss that slides within the slide openings. The inner side of the frame extends through the slide openings on the mounting plate to the space between the mounting plate and the rotating shaft cylinder, and a retaining ring is rotatably sleeved on the outer side of the rotating shaft cylinder at the extended end. The end of the boss away from the second lead screw extends to the outer side of the rotating shaft cylinder and is rotatably sleeved within the retaining ring.

[0016] Preferably, the frame is centrally connected to a slip ring fitted on the outer section of the mounting plate on the rotating shaft cylinder. The inner wall of the slip ring penetrates the second slide opening on the mounting plate and extends to the inside of the mounting plate and the outside of the rotating shaft cylinder, and is connected to a retaining ring.

[0017] The beneficial effects of this invention are:

[0018] 1. The technical solution of this invention uses a drive motor to rotate the rotating shaft cylinder, which in turn drives the I-shaped disc to rotate between the short and long hammers on both sides of the grinding toothed disc. At the same time, without external force, the rotation of the I-shaped disc will cause the rotating frame to deflect along the center point connected to the rotating I-shaped disc under the action of inertia, so that the long hammers are no longer arranged radially along the I-shaped disc. Then, the grain to be ground is added through the feed funnel pipe, so that the grain enters the screen cylinder between the cylinder cover and the mounting disc, and is repeatedly struck by the short and long hammers and the impact rod on the high-speed rotating I-shaped disc. In conjunction with the grinding toothed disc, the grain is ground efficiently. During the process, under the action of centrifugal force, the sleeve can be partially thrown out, so that the slide frame and the wire brush can participate in the agitation of the grain material in the screen cylinder. If the rotation speed is high enough to centrifugally extend the wire brush on the slide frame to fit against the inner wall of the screen cylinder, the inner wall of the screen cylinder can also be cleaned, so as to prevent the grain material from clogging the screen cylinder and failing to discharge the qualified ground material, thus improving the grinding effect.

[0019] 2. The technical solution of this invention, during the grinding process, can also control a servo motor to drive the lead screw to rotate, thereby causing the two side collars to move closer together and push the rotating plate to rotate. This allows each clamping frame to slide outward along the radial direction of the I-shaped disk, and clamps the outer side of the rotating frame. This allows the rotating frame, connecting frame, and long hammer, which were originally deflected to one side under inertia, to gradually rotate back to their original position and be arranged radially along the I-shaped disk. This allows for angle adjustment of the rotating frame, connecting frame, and long hammer within a small range during the process, thus improving the grinding operation. At the same time, the long hammerhead can swing within a certain angle range, improving grinding efficiency and avoiding wear between the long hammerhead and the fixed position of the grinding disc. Meanwhile, the clamping frame limits and returns to the rotating frame, so that after the long hammerhead is arranged radially along the I-shaped disc, each clamping frame continues to slide away from each other and can also come into contact with the sleeve seat. This actively pushes the sleeve seat, slide frame and wire brush along the radial direction of the I-shaped disc and makes them fit against the inner wall of the screen cylinder for cleaning, thus achieving active cleaning of the inside of the screen cylinder and improving the stability of the service life and grain grinding effect.

[0020] 3. The technical solution of this invention, through repeated forward and reverse rotation of the lead screw during the grinding process, adjusts the degree of fitting of the clamping frame to the rotating frame, thereby adjusting the deviation angle of the rotating frame, connecting frame, and long hammer head along the radial direction of the I-shaped disk. The lead screw can also drive the lead screw two to rotate, thereby driving the collar two to slide back and forth within the cavity two. As the boss connected to the outer side of the collar two rotates within the clamping ring, it can also pull the clamping ring, sliding ring, frame, and ring to slide repeatedly along the axial direction of the I-shaped disk. This drives the scraper ring to clean the inner wall of the grinding cylinder, preventing excessive adhesion of ground grain to the inner wall and causing blockage. At the same time, the wire brush ring can clean the outer side of the screen cylinder along the axial direction, and cooperate with the wire brush one to clean the inner wall of the screen cylinder. This allows both to efficiently clean the inner and outer sides of the screen cylinder in different directions, preventing the screen cylinder from being blocked and preventing the material from being discharged in time, further improving the discharge efficiency, and indirectly improving the grinding efficiency and effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a sectional view of the side structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the grinding cylinder of the present invention;

[0024] Figure 4 This is a schematic diagram of the relevant structure installed on the installation disk of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure on the I-shaped disk of the present invention;

[0026] Figure 6 This is a sectional view of the upper side structure of the I-shaped disk of the present invention;

[0027] Figure 7 This is a cross-sectional view of the front view of the structure on the I-shaped disk of the present invention;

[0028] Figure 8 This is a schematic diagram of the related structure between the rotating frame and the rotating plate of the present invention;

[0029] Figure 9 This is a schematic diagram of the relevant structures on the frame of the present invention;

[0030] Figure 10 This is a cross-sectional view of the relevant structures on the rotating frame of the present invention;

[0031] Figure 11 This is a schematic diagram of the long hammer head and related structures within the connecting frame of the present invention;

[0032] Figure 12 This is a schematic diagram of the relevant structures on the skateboard frame of the present invention;

[0033] Figure 13 This is a schematic diagram of the relevant structures on the ring of the present invention;

[0034] Figure 14 for Figure 13 Enlarged view of point A in the middle;

[0035] Figure 15 This is a schematic diagram of the structure of the cylinder cover and its upper grinding toothed plate of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Base; 2. Grinding cylinder; 3. Cylinder cover; 4. Rotating shaft cylinder; 5. Drive motor; 6. Feed funnel tube; 7. Discharge port; 8. Mounting plate; 9. Grinding toothed disc; 10. I-shaped disc; 11. Short hammer; 12. Rotating frame; 13. Connecting frame; 14. Long hammer; 15. Impact rod; 16. Cavity 1; 17. Servo motor; 18. Lead screw 1; 19. Guide rod 1; 20. Slide opening 1; 21. Collar 1; 22. Cavity; 23. Opening; 24. Frame; 25. Rotating plate 1; 26. Limiting slide groove 1; 27. 28. Guide rod 2; 29. ​​Sleeve seat; 30. Spring 1; 31. Slide frame; 32. Steel wire brush 1; 33. Limiting slide groove 2; 34. Guide rod 3; 35. Slide bar; 36. Spring 2; 37. Steel wire brush 2; 38. Guide rod 4; 39. Sleeve plate; 40. Rotating plate 2; 41. Slip ring; 42. Frame; 43. Circular ring; 44. Scraper ring; 45. Steel wire brush ring; 46. Cavity 2; 47. Slide opening 2; 48. Lead screw 2; 49. Collar 2; 50. Boss; 51. Snap ring; 52. Rubber pad; 53. Screen cylinder. Detailed Implementation

[0038] The following will be combined with the appendix Figure 1 To be continued Figure 15 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1:

[0040] like Figures 1-15As shown, the present invention discloses an impact mill for grain processing, including a base 1, a grinding cylinder 2 and a drive motor 5 mounted on the base 1, a cylinder cover 3 mounted on the grinding cylinder 2, an installation plate 8 mounted inside the grinding cylinder 2, a rotating shaft cylinder 4 rotatably fitted inside the installation plate 8, and the rotating shaft cylinder 4 rotatably extends through to the outside of the grinding cylinder 2 and is connected to the output end of the drive motor 5. Grinding toothed discs 9 are mounted on both the installation plate 8 and the cylinder cover 3 inside the grinding cylinder 2. An I-shaped disc 10 is fitted on the surface of the rotating shaft cylinder 4 between the grinding toothed discs 9 on both sides. A sieve cylinder 52 is mounted on the installation plate 8 and fitted outside the grinding toothed discs 9. Multiple short hammers 11 are arrayed on the outside of the I-shaped disc 10. Multiple rotating frames 12 are rotatably connected to the edge of the I-shaped disc 10 at intervals from the short hammers 11. A connecting frame 13 and a long hammer 14 are sequentially connected to the rotating frame 12 along the radially outer side of the I-shaped disc 10. Multiple locking frames 24 corresponding to the rotating frames 12 are slidably connected in an array inside the I-shaped disc 10.

[0041] A drive assembly is provided on the rotating cylinder 4 and the I-shaped disk 10. The drive assembly is used to drive each frame 24 to move away from each other and to engage with the rotating frame 12 on one side of the rotating frame 12 radially along the I-shaped disk 10. A slide frame 30 is slidably provided inside the long hammer head 14. A wire brush 31 is connected to the slide frame 30. An extension assembly is provided on the connecting frame 13. When the frame 24 engages with the rotating frame 12, the extension assembly can also drive the slide frame 30 to extend radially along the I-shaped disk 10 to fit against the inner wall of the screen cylinder 52 to clean the inner wall of the screen cylinder 52. A frame 41 is fitted on the outer side of the mounting disk 8. A ring 42 is connected to the frame 41. A scraping ring 43 for scraping the inner wall of the grinding cylinder 2 and a wire brush ring 44 for cleaning the outer side of the screen cylinder 52 are respectively connected to the inner and outer sides of the ring 42. A linkage assembly is also provided on the rotating cylinder 4. When the rotating frame 24 is driven to slide, the linkage assembly can drive the ring 42 to slide axially along the grinding cylinder 2.

[0042] The front end of the grinding cylinder 2 is open. The cylinder cover 3 is fitted into the open by hinge or bolts. The cylinder cover 3 is equipped with a feed funnel pipe 6, which extends into the screen cylinder 52. The grinding toothed disc 9 on the cylinder cover 3 is fitted onto the outside of the feed funnel pipe 6. The lower end of the grinding cylinder 2 is provided with a discharge port 7. The rotating frame 12 is also connected with a rubber pad 51 that buffers the outer edge of the I-shaped disc 10.

[0043] This allows for easy opening of the cylinder cover 3, and after opening the cylinder cover 3, the cylinder cover 3 and the grinding toothed disc 9 installed on it can be separated from the front opening of the grinding cylinder 2, so that the front end of the screen cylinder 52 is unobstructed. This facilitates flexible maintenance of various components inside the screen cylinder 52 between the grinding toothed discs 9 on both sides. The feed funnel pipe 6 protrudes from the grinding toothed disc 9 on the cylinder cover 3 inside the grinding cylinder 2, so as to facilitate feeding the grain material to be ground to the center of the screen cylinder 52. At the same time, the sleeve of the grinding toothed disc 9 on the outside of the feed funnel pipe 6 also facilitates the flexible disassembly and assembly of the grinding toothed disc 9 on the cylinder cover 3.

[0044] The mounting plate 8 is connected to the inner wall of the grinding cylinder 2 on the side away from the cylinder cover 3, and is fitted on the outside of the rotating shaft cylinder 4. The screen cylinder 52 is installed on the side of the mounting plate 8 near the cylinder cover 3 by bolts, and both ends of the screen cylinder 52 are also open. The front end of the screen cylinder 52 fits and seals against the cylinder cover 3, and is fitted on the outside of the grinding toothed disc 9 on the cylinder cover 3.

[0045] This ensures that during operation, the cylinder cover 3 and the grinding toothed disc 9 on the mounting plate 8 can be stably and sealed inside the sieve cylinder 52 for grinding operations. It also facilitates the disassembly and assembly of the sieve cylinder 52 and the grinding toothed disc 9 on the mounting plate 8, provided that the I-shaped disc 10 and its related components have been removed.

[0046] Both the short hammer 11 and the long hammer 14 extend to the front and rear sides of the I-shaped disk 10. The front and rear end faces of the I-shaped disk 10 are also equipped with multiple arrays of impact rods 15 arranged along its axial direction. The grinding toothed disk 9 is connected to multiple arrays of arc-shaped toothed plates. The arc-shaped toothed plates are arranged radially along the I-shaped disk 10 between each layer of impact rods 15, or between the impact rods 15 and the short hammer 11, or between the long hammer 14 and the screen cylinder 52.

[0047] Among them, the grinding toothed disc 9 is an existing mature grinding toothed disc 9, on which multiple arc-shaped toothed plates are arranged in an array within a circumference and arranged in multiple coaxial layers. Through such a multi-layer and multi-impact component arrangement, the efficiency and effect of impact grinding are improved.

[0048] Example 2:

[0049] like Figures 1-15 As shown, the present invention discloses an impact mill for grain processing. Compared with Embodiment 1, this embodiment discloses the structure of the drive component.

[0050] The drive assembly includes a cavity 16, a servo motor 17, a lead screw 18, slide openings 20, and a collar 21. The cavity 16 is located inside the rotating cylinder 4 between the two grinding gear discs 9. The servo motor 17 is installed on the inner wall of one side of the cavity 16. One end of the lead screw 18 is connected to the output end of the servo motor 17, and the other end is rotatably connected to the inner wall of the other side of the cavity 16. The slide openings 20 are arrayed on the inner wall of the cavity 16 and penetrate the outer surface of the rotating cylinder 4. The collar 21 is threaded on the outside of the lead screw 18 and slides inside the cavity 16. The outer side of the collar 21 extends to the outside of each slide opening 20 and is rotatably connected to the corresponding radially corresponding retaining frame 24 by a rotating plate 25. The lead screw 18 is a bidirectional lead screw with opposite threads at both ends. The collar 21 is provided at both ends inside the cavity 16 and is threaded on the opposite threads at both ends of the lead screw 18.

[0051] In actual operation, the drive motor 5 drives the rotating shaft cylinder 4 to rotate, which in turn drives the I-shaped disk 10 to rotate the short hammer 11, long hammer 14 and impact rod 15 between the two grinding toothed disks 9. At the same time, without external force, the rotation of the I-shaped disk 10 will cause the rotating frame 12 to deflect along the center point connected to the rotating I-shaped disk 10 under the action of inertia, so that the long hammer 14 is no longer arranged radially along the I-shaped disk 10. Then, the grain to be ground is added through the feed funnel pipe 6, so that the grain enters the screen cylinder 52 between the cylinder cover 3 and the mounting disk 8, and is repeatedly struck by the short hammer 11, long hammer 14 and impact rod 15 on the high-speed rotating I-shaped disk 10, and works with the grinding toothed disk 9 to achieve efficient grinding of the grain.

[0052] During the process, the servo motor 17 can be controlled to rotate forward and backward, which can drive the lead screw 18 to rotate forward and backward, thereby driving the collars 21 on both sides to move closer or further apart, so as to drive the rotating plate 25 to rotate. This can then drive the clamping frames 24, which are close to each other and have no effect on the rotating frame 12, to move further apart and gradually clamp with the rotating frame 12. During the process, the rotating frame 12 is limited and pushed to guide it, so that the rotating frame 12 gradually rotates back to the center and then moves in the opposite direction along the radial direction of the I-shaped disk 10. When the clamping frames 24 are controlled to move closer to each other again, the rotating frame 12 will deviate from the radial direction of the I-shaped disk 10 under the action of inertial force, thereby realizing the angle adjustment of the long hammer head 14 within a certain angle range, avoiding its fixed setting, which may form an impact dead angle, and also avoiding wear on the fixed position.

[0053] The inner walls of both sides of cavity 16 are connected to multiple guide rods 19 arranged in an array on the outside of lead screw 18. The collar 21 is also slidably sleeved on the outside of the guide rods 19. A cavity 22 is opened in the I-shaped disk 10, and multiple openings 23 that communicate with the circumferential surface of the I-shaped disk 10 are arranged in an array on the inner wall of the cavity 22. The retaining frame 24 slides in the opening 23 on its respective side and cooperates with the rotating frame 12 in its respective radial direction. The slide opening 20 extends from the rotating shaft cylinder 4 in an L-shape to the I-shaped disk 10 and passes through the cavity 22 in the I-shaped disk 10.

[0054] This allows the card frame 24 to slide more stably within the opening 23, while the rotating plate 25 can interact within the slide opening 20 on the I-shaped plate 10 to achieve a stable pushing and pulling effect on the card frame 24. Furthermore, the collar 21 is slidably fitted on the outside of the guide rod 19, which improves the stability of its sliding and the overall structural strength.

[0055] Example 3:

[0056] like Figures 1-15 As shown, the present invention discloses an impact mill for grain processing. Compared with Embodiment 2, this embodiment discloses the structure of the elongation component.

[0057] The elongation assembly includes a limiting slide groove 26, a guide rod 27, and a sleeve 28. The limiting slide groove 26 is formed on both inner walls of the connecting frame 13. The two ends of the guide rod 27 are respectively connected to the upper and lower inner walls of the limiting slide groove 26. The sleeve 28 is slidably connected to the connecting frame 13 and the limiting slide groove 26. The sleeve 28 is slidably sleeved on the outside of the guide rod 27. A spring 29 sleeved on the outside of the guide rod 27 is connected to the inner wall of the limiting slide groove 26 near the center of the I-shaped plate 10. The two ends of the sleeve 28 also extend to the outside of the connecting frame 13 and cooperate with the retaining frame 24 to abut.

[0058] When the rotating shaft cylinder 4 and the I-shaped disc 10 are driven to rotate, and the short hammer 11, the long hammer 14 and the impact rod 15 impact and grind the grain material, the sleeve 28 can be partially thrown out from the long hammer 14 under the action of centrifugal force. This allows the slide frame 30 and the wire brush 31 to participate in the stirring of the grain material in the screen cylinder 52. Furthermore, if the rotation speed is high enough to centrifugally extend the wire brush 31 on the slide frame 30 to fit against the inner wall of the screen cylinder 52, it can also clean the inner wall of the screen cylinder 52, preventing the grain material from clogging the screen cylinder 52 and thus preventing the qualified ground material from being discharged, thereby improving the grinding effect.

[0059] The skateboard frame 30 is provided with limiting grooves 32 at both ends along the axial direction of the I-shaped disk 10. Guide rods 33 are connected to the inner walls of both sides of the limiting grooves 32. Sliding strips 34 are slidably connected in the limiting grooves 32 and are slidably sleeved on the outside of the guide rods 33. Springs 35 are sleeved on the outside of the guide rods 33 between the sliding strips 34 and the inner walls of the limiting grooves 32 on both sides. Steel wire brushes 36 are connected to the sliding strips 34 radially outward along the I-shaped disk 10. Guide rods 4 37 are connected to the lower end of the skateboard frame 30. A sleeve plate 38 that cooperates with and abuts against the skateboard frame 30 is sleeved on the outside of the guide rods 4 37. Rotating plates 39 are rotatably connected between the sleeve plate 38 and the sliding strips 34 on their respective sides.

[0060] This allows the card frames 24 to be positioned and centered within the rotating frame 12, ensuring that the long hammers 14 are radially arranged along the I-shaped disk 10. The card frames 24 continue to slide away from each other, while still engaging with the sleeve 28. This actively pushes the sleeve 28, slide frame 30, and wire brush 31 radially along the I-shaped disk 10, allowing them to adhere to and clean the inner wall of the sieve cylinder 52. This proactive cleaning of the sieve cylinder 52 improves its lifespan and stabilizes the grain grinding effect. During this process, the sliding strips 34 on the slide frame 30, which extends from within the long hammers 14, also follow the movement. As it moves upward until the sleeve plate 38 and the long hammer head 14 come into contact with each other along the radial inner side of the I-shaped plate 10, it will pull the sliding strips 34 on the front and rear sides of the slide frame 30 to slide away from each other, so as to extend the overall length of the slide frame 30. This avoids the fact that the wire brush 31 on the slide frame 30 is too short to fully cover the inner wall of the screen cylinder 52. The sliding strips 34 on the front and rear sides sliding away from each other along the I-shaped plate 10 will drive the wire brush 36 to fill the area that the wire brush 31 on the slide frame 30 cannot cover, thereby improving the effect of active cleaning of the screen cylinder 52.

[0061] Example 4:

[0062] like Figures 1-15 As shown, the present invention discloses an impact mill for grain processing. Compared with Embodiment 3, this embodiment discloses the structure of the linkage component.

[0063] The linkage assembly includes a second cavity 45, a second lead screw 47, and a second collar 48. The second cavity 45 is located at one end of the rotating shaft cylinder 4 near the output shaft of the drive motor 5 and communicates with the first cavity 16. One end of the second lead screw 47 is connected to the first lead screw 18, and the other end is rotatably connected to the inner wall of the second cavity 45. The inner wall of the second cavity 45 has slide openings 46 on its upper and lower sides. The mounting plate 8 is fitted onto the outer section of the second cavity 45 and also has slide openings 46. The second collar 48 is threaded. A boss 49 is connected to a collar 48 on the outside of the lead screw 47, which slides in the slide opening 46. The collar 48 slides in the cavity 45. The inner side of the frame 41 extends through the slide opening 46 on the mounting plate 8 to the space between the mounting plate 8 and the rotating shaft cylinder 4. A retaining ring 50 is connected at the extended end and is rotatably sleeved on the outside of the rotating shaft cylinder 4. The end of the boss 49 away from the lead screw 47 extends to the outside of the rotating shaft cylinder 4 and is rotatably sleeved in the retaining ring 50.

[0064] The frame 41 is connected at the center by a slip ring 40 that is fitted on the outer side of the mounting plate 8 and the rotating shaft cylinder 4. The inner wall of the slip ring 40 penetrates the upper slide opening 46 of the mounting plate 8 and extends to the inside of the mounting plate 8 and the outside of the rotating shaft cylinder 4, and is connected by a retaining ring 50.

[0065] This causes the lead screw 18 to repeatedly rotate in both directions during the grinding process. As the clamping frame 24 adjusts its fit to the rotating frame 12, thereby adjusting the radial deviation angle of the rotating frame 12, connecting frame 13, and long hammer 14 along the I-shaped disk 10, the lead screw 18 can also drive the lead screw 47 to rotate. This, in turn, causes the collar 48 to slide back and forth within the cavity 45. Simultaneously, the boss 49 connected to the outer side of the collar 48 rotates within the clamping ring 50, which in turn pulls the clamping ring 50, slip ring 40, frame 41, and ring 42 to slide repeatedly along the axial direction of the I-shaped disk 10. This, in turn, drives the scraper ring 43 to scrape the inner wall of the grinding cylinder 2, preventing excessive adhesion of ground grain to the inner wall and causing blockage. At the same time, the wire brush ring 44 can clean the outer side of the screen cylinder 52 along the axial direction, and work with the wire brush one 31 and wire brush two 36 to clean the inner wall of the screen cylinder 52 circumferentially. This allows the two to efficiently clean the inner and outer sides of the screen cylinder 52 in different directions, improving the active cleaning and cleaning effect, preventing the screen cylinder 52 from being blocked and preventing the material from being discharged in time, further improving the discharge efficiency, and indirectly improving the grinding efficiency and effect.

[0066] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. An impact mill for grain processing, comprising a base (1), a grinding cylinder (2) and a drive motor (5) mounted on the base (1), a cylinder cover (3) mounted on the grinding cylinder (2), an installation plate (8) mounted inside the grinding cylinder (2), a rotating shaft cylinder (4) rotatably fitted inside the installation plate (8), and the rotating shaft cylinder (4) rotatably extends through to the outside of the grinding cylinder (2) and is connected to the output end of the drive motor (5), characterized in that, Grinding toothed discs (9) are installed inside the grinding cylinder (2) on the mounting plate (8) and the cylinder cover (3). An I-shaped disc (10) is fitted on the surface between the grinding toothed discs (9) on both sides of the rotating shaft cylinder (4). A sieve cylinder (52) is installed on the mounting plate (8) and fitted on the outside of the grinding toothed disc (9). Multiple short hammers (11) are arranged in an array on the outside of the I-shaped disc (10). Multiple rotating frames (12) are arranged in an array on the edge of the I-shaped disc (10) and spaced apart from the short hammers (11). A connecting frame (13) and a long hammer (14) are connected in sequence along the radial outer side of the I-shaped disc (10). Multiple locking frames (24) corresponding to the rotating frames (12) are arranged in an array inside the I-shaped disc (10). The rotating cylinder (4) and the I-shaped disk (10) are equipped with driving components. The driving components are used to drive each frame (24) to move away from each other and to engage with the rotating frame (12) on one side of the rotating frame (12) radially along the I-shaped disk (10). A sliding plate frame (30) is slidably arranged inside the long hammer head (14). A wire brush (31) is connected to the sliding plate frame (30). An extension component is provided on the connecting frame (13). The extension component is used to drive the sliding plate frame (30) to extend radially along the I-shaped disk (10) when the frame (24) engages with the rotating frame (12). The mounting plate (8) is fitted with a frame (41) on the outside of the mounting plate (8) to clean the inner wall of the sieve cylinder (52). A ring (42) is connected to the frame (41). A scraping ring (43) for scraping the inner wall of the grinding cylinder (2) and a wire brush ring (44) for cleaning the outer side of the sieve cylinder (52) are respectively connected to the inner and outer sides of the ring (42). A linkage component is also provided on the rotating shaft cylinder (4). The linkage component is used to drive the ring (42) to slide along the axial direction of the grinding cylinder (2) when it is driven to slide in each frame (24).

2. The impact mill for grain processing according to claim 1, characterized in that, The front end of the grinding cylinder (2) is open. The cylinder cover (3) is mounted inside the open by hinge or bolt. The cylinder cover (3) is equipped with a feed funnel pipe (6) that extends into the sieve cylinder (52). The grinding toothed disc (9) on the cylinder cover (3) is mounted on the outside of the feed funnel pipe (6). The lower end of the grinding cylinder (2) is provided with a discharge port (7). The rotating frame (12) is also connected with a rubber pad (51) that buffers the outer edge of the I-shaped disc (10).

3. The impact mill for grain processing according to claim 1, characterized in that, The mounting plate (8) is connected to the inner wall of the grinding cylinder (2) away from the cylinder cover (3) and is fitted on the outside of the rotating shaft cylinder (4). The sieve cylinder (52) is installed on the side of the mounting plate (8) near the cylinder cover (3) by bolts, and the two ends of the axial direction of the sieve cylinder (52) are also open. The front end of the sieve cylinder (52) is in contact with the cylinder cover (3) and is sealed, and is fitted on the outside of the grinding toothed disc (9) on the cylinder cover (3).

4. The impact mill for grain processing according to claim 1, characterized in that, Both the short hammer (11) and the long hammer (14) extend to the front and rear sides of the I-shaped disk (10). The front and rear end faces of the I-shaped disk (10) are also equipped with multiple arrays of impact rods (15) arranged along its axial direction. The grinding toothed disk (9) is connected with multiple arrays of arc-shaped toothed plates. The arc-shaped toothed plates are arranged radially along the I-shaped disk (10) between each layer of impact rods (15), or between the impact rods (15) and the short hammer (11), or between the long hammer (14) and the sieve cylinder (52).

5. The impact mill for grain processing according to claim 1, characterized in that, The drive assembly includes a cavity (16), a servo motor (17), a lead screw (18), a slide opening (20), and a collar (21). The cavity (16) is located inside the rotating shaft cylinder (4) between the two grinding gear discs (9). The servo motor (17) is installed on the inner wall of one side of the cavity (16). One end of the lead screw (18) is connected to the output end of the servo motor (17), and the other end is rotatably connected to the inner wall of the other side of the cavity (16). The slide openings (20) are arrayed inside the cavity (16). The wall and penetrate the outer surface of the rotating shaft cylinder (4). The collar one (21) is threaded on the outside of the screw one (18) and slides in the cavity one (16). The outer side of the collar one (21) extends to the outside of each slide opening one (20) and is rotatably connected to the corresponding radially corresponding card frame (24) with a rotating plate one (25). The screw one (18) is a bidirectional screw with opposite threads at both ends. The collar one (21) is provided at both ends in the cavity one (16) and is threaded on the opposite threads at both ends of the screw one (18).

6. The impact mill for grain processing according to claim 5, characterized in that, The inner walls of the cavity (16) are connected to a plurality of guide rods (19) arranged in an array on the outside of the lead screw (18). The collar (21) is also slidably sleeved on the outside of the guide rod (19). The I-shaped disk (10) has a cavity (22) inside, and a plurality of openings (23) that communicate with the circumferential surface of the I-shaped disk (10) are arranged in an array on the inner wall of the cavity (22). The clamping frame (24) slides in the opening (23) on its respective side and cooperates with the rotating frame (12) on its respective radial direction. The slide opening (20) extends from the rotating shaft cylinder (4) in an L-shape to the I-shaped disk (10) and penetrates the cavity (22) inside the I-shaped disk (10).

7. The impact mill for grain processing according to claim 1, characterized in that, The elongation assembly includes a limiting slide groove 1 (26), a guide rod 2 (27), and a sleeve (28). The limiting slide groove 1 (26) is opened on both sides of the inner wall of the connecting frame (13). The two ends of the guide rod 2 (27) are respectively connected to the upper and lower inner walls of the limiting slide groove 1 (26). The sleeve (28) is slidably connected to the connecting frame (13) and the limiting slide groove 1 (26). The sleeve (28) is slidably sleeved on the outside of the guide rod 2 (27). A spring 1 (29) sleeved on the outside of the guide rod 2 (27) is connected to the inner wall of the limiting slide groove 1 (26) near the center of the I-shaped plate (10). The two ends of the sleeve (28) also extend to the outside of the connecting frame (13) and cooperate with the locking frame (24) to abut.

8. The impact mill for grain processing according to claim 7, characterized in that, The slide frame (30) is provided with limiting grooves (32) at both ends along the axial direction of the I-shaped disk (10), and guide rods (33) are connected to the inner walls of the two sides of the limiting grooves (32). Sliding strips (34) are slidably connected in the limiting grooves (32), and the sliding strips (34) are slidably sleeved on the outside of the guide rods (33). A spring (35) sleeved on the outside of the guide rods (33) is connected between the sliding strips (34) and the inner walls of the limiting grooves (32) on both sides away from each other. A wire brush (36) is connected to the sliding strips (34) radially outward along the I-shaped disk (10). A guide rod (4) (37) is connected to the lower end of the slide frame (30). A sleeve plate (38) that cooperates with and abuts against the slide frame (30) is sleeved on the outside of the guide rods (4) (37). A rotating plate (39) is rotatably connected between the sleeve plate (38) and the sliding strips (34) on each side.

9. The impact mill for grain processing according to claim 5, characterized in that, The linkage assembly includes a second cavity (45), a second lead screw (47), and a second collar (48). The second cavity (45) is located at one end of the rotating cylinder (4) near the output shaft of the drive motor (5) and communicates with the first cavity (16). One end of the second lead screw (47) is connected to the first lead screw (18), and the other end is rotatably connected to the inner wall of the second cavity (45). The inner wall of the second cavity (45) has two slide openings (46) on its upper and lower sides. The mounting plate (8) is fitted onto the outer section of the second cavity (45) and also has two slide openings (46). The second collar (48) The threaded sleeve is fitted on the outside of the screw two (47). The collar two (48) is connected to a boss (49) that slides in the slide opening two (46). The collar two (48) slides in the cavity two (45). The inner side of the frame (41) extends through the slide opening two (46) on the mounting plate (8) to the space between the mounting plate (8) and the rotating shaft cylinder (4). At the extended end, a retaining ring (50) is rotatably fitted on the outside of the rotating shaft cylinder (4). The boss (49) extends away from the screw two (47) to the outside of the rotating shaft cylinder (4) and is rotatably fitted in the retaining ring (50).

10. The impact mill for grain processing according to claim 9, characterized in that, The frame (41) is connected at its center to a slip ring (40) fitted on the outer side of the mounting plate (8) and the rotating shaft cylinder (4). The inner wall of the slip ring (40) penetrates the upper slide opening (46) of the mounting plate (8) and extends to the inside of the mounting plate (8) and the outside of the rotating shaft cylinder (4), and is connected to a retaining ring (50).

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