Vibrating screening machine and screening method for flaky pills

Abstract

The invention provides a vibrating screening machine and a screening method for flaky pills, and relates to the technical field of material screening. The vibrating screening machine comprises a material storage tank, a feeding port and a discharging port, and the feeding port and the discharging port are formed in the material storage tank; a lower filter plate is fixedly connected into the storage tank and fixedly connected with a receiving hopper, a wavy guide rail is fixedly connected to the inner side face of the receiving hopper, a supporting shell and a rotating source are arranged below the storage tank, a plurality of guide plates and sliding plates are arranged on the supporting shell in the circumferential direction, and reset springs are arranged between the supporting shell and the sliding plates. A sealing piece is connected between the lower filter plate and the guide plate, the upper surface of the guide plate is fixedly connected with a supporting rod, the supporting rod is rotationally connected with a guide rod, the sliding plate is fixedly connected with a connecting rod, the connecting rod is rotationally connected with a roller, and the outer side face of the storage tank is fixedly connected with a vibration source. The filtering device has the effects of reducing the probability that materials block the filtering holes in the lower filtering plate and improving the filtering efficiency of the lower filtering plate on the materials.

Description

Technical Field

[0001] The invention relates to the technical field of material screening, and in particular to a vibrating screening machine and a screening method for tablet pills. Background Art

[0002] A vibrating sieve is used in conjunction with a test sieve to analyze material particle size, replacing manual screening. Vibrating sieves primarily include slap sieves, top-impact vibrating sieves, and standard test sieves. During the pill production process, raw materials require crushing and sieving to remove impurities and particles that do not meet size requirements, ensuring uniformity and fineness before pilling. Currently, vibrating sieves are primarily used to screen the raw material particles.

[0003] For example, in the Chinese patent application document with publication number CN108080250A and the name of Chinese medicine powder sieving machine, the motor drives the brush plate and the brush to rotate under the screen through the rotating shaft. Since the top of the brush will extend into the mesh of the screen, the vibrator is connected to the base through a spring. Due to the shock-absorbing effect of the spring, the vibration of the base can be effectively reduced. At the same time, due to the shock-absorbing effect of the annular rubber, the vibration transmitted to the cylinder cover by the cylinder can be reduced, thereby reducing the noise. When the screen needs to be cleaned, the convex block can be picked up to separate the screen from the block, and the screen can be taken out of the cylinder for cleaning.

[0004] With respect to the above-mentioned related technologies, the top of the brush will extend into the mesh of the screen. When the screen is thick, it is difficult for the brush to fully extend into the mesh of the screen. In addition, for filtering the products of the powder machine, the mesh diameter of the screen is small, so the diameter of the brush adapted to the mesh is also small. The brush with a smaller diameter has poor hardness and is difficult to clear the material blocked in the mesh, causing the material to accumulate on the surface of the screen, which has a negative impact on the operation of the screen. Summary of the Invention

[0005] In view of this, the present invention provides a vibrating screen machine and screening method for tablet pills, aiming to solve the problem that the brush is difficult to fully extend into the mesh of the screen, and the brush with a smaller diameter has poor hardness and is difficult to clear the material blocked in the mesh.

[0006] The discharging opening that stirs cage connects with the delivery chute charging aperture, and the delivery chute discharging opening is erected at bin top, bin be arranged on the supporting tractor to carry mobile handler location.

[0007] By adopting the above technical solution, the sliding plate and the guide plate move back and forth in the vertical direction, driving the volume change of the internal space of the seal, thereby drawing the material on the surface of the lower filter plate downward, increasing the material screening rate while reducing the material accumulated on the surface of the lower filter plate. At the same time, the seal drives the airflow through the filter holes of the lower filter plate to dredge the filter holes of the lower filter plate, reducing the probability of material clogging the filter holes in the lower filter plate and improving the filtering efficiency of the lower filter plate for the material.

[0008] Optionally, a material shifting member is provided inside the sealing member, and the material shifting member can be rotated to shift the material to the outside of the sliding plate.

[0009] By adopting the above technical solution, the material can be moved to the outside of the sliding plate by the rotation of the material shifting member, thereby facilitating the material to be output from between the sliding plate and the sealing member.

[0010] Optionally, an upper filter plate is provided above the lower filter plate, and a conveying plate for conveying materials to the discharge port is fixedly connected to the bottom surface of the upper filter plate.

[0011] By adopting the above technical solution, the upper filter plate and the lower filter plate perform double filtration on the material, improving the quality of the filtered product. The material that passes through the upper filter plate falls to the feed plate, and the material rolls down from the edge of the feed plate to the discharge port for discharge.

[0012] Optionally, the upper surface of the lower filter plate is a conical surface, and a connecting plate is rotatably arranged above the lower filter plate. The bottom surface of the connecting plate is parallel to the upper surface of the lower filter plate, and the connecting plate can rotate under the drive of the rotation source. The bottom surface of the connecting plate is fixedly connected to bristles, and the bristles are arranged along a spiral trajectory in the direction away from the central axis of the connecting plate.

[0013] By adopting the above technical solution, the bristles rotate with the connecting plate to flatten the material on the surface of the lower filter plate. At the same time, the seal moves upward to transport the airflow upward through the lower filter plate. While cooperating with the bristles to clear the filter holes of the lower filter plate, the speed of material movement on the lower filter plate is increased, thereby further improving the filtering effect of the lower filter plate.

[0014] Optionally, a connecting pipe is connected between the connecting plate and the upper filter plate, the inner side of the connecting pipe is fixedly connected with grinding teeth, a grinding wheel is rotatably provided in the connecting pipe, and the grinding wheel can rotate under the drive of the rotation source.

[0015] By adopting the above technical solution, the grinding wheel cooperates with the grinding teeth to grind the material, and the ground material falls to the lower filter plate for re-filtration, thereby improving the efficiency of material use.

[0016] Optionally, a conical distribution plate is fixedly provided directly below the feed port, and the distribution plate is provided directly above the upper filter plate.

[0017] In a second aspect, the present invention provides a screening method for tablet pills, which is applied to the vibrating screening machine for tablet pills described in the first aspect. The screening method is: S1, conveying the material to the upper filter plate through the feed port, the material passing through the upper filter plate falls to the conveying plate, and the material rolls down from the edge of the conveying plate to the discharge port to be discharged; S2, the material that has not passed through the upper filter plate is ground by the grinding wheel and then falls to the lower filter plate for screening. When the guide plate moves downward, the seal is stretched, so that the seal draws the material downward; S3, the sliding plate and the guide plate continue to move downward, the roller abuts against the inner side surface of the conical tank body of the storage tank, the conical inner side surface of the storage tank pushes the roller to move toward the central axis of the support shell, and the sliding plate moves toward the inside of the seal, so that the sliding plate is separated from the seal, and the material falls from between the sliding plate and the seal to the discharge port.

[0018] Optionally, in S3, the guide plate and the sliding plate move vertically downward to extract materials downward, while being able to control whether the bottom of the seal is sealed. When the bottom of the seal is sealed, the seal extracts the materials on the lower filter plate downward. When the bottom of the seal is not sealed, the materials can be output from between the sliding plate and the seal.

[0019] By adopting the above technical solution, the upper filter plate cooperates with the lower filter plate to perform double filtration on the material, thereby improving the quality of the filtered product. The grinding wheel cooperates with the grinding teeth to grind the material that has not passed through the upper filter plate. The ground material falls to the lower filter plate for re-filtration. The material that passes through the upper filter plate falls to the feed plate, and the material rolls down from the edge of the feed plate to the discharge port to be discharged.

[0020] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects: 1. The sliding plate and the guide plate move back and forth in the vertical direction, driving the volume change of the internal space of the seal, thereby pulling the material on the surface of the lower filter plate downward, increasing the material screening rate while reducing the material accumulated on the surface of the lower filter plate. At the same time, the seal drives the air flow through the filter holes of the lower filter plate to dredge the filter holes of the lower filter plate, reducing the probability of material blocking the filter holes in the lower filter plate and improving the filtering efficiency of the lower filter plate for the material.

[0021] 2. The guide plate and the sliding plate move vertically downward to extract the material downward, and can control whether the bottom of the seal is sealed, so that the material on the lower filter plate can be drawn downward while the material can be discharged from between the sliding plate and the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a storage tank according to an embodiment of the present invention; Figure 3 This is a schematic structural diagram of the filter plate according to an embodiment of the present invention; Figure 4 This is a structural diagram of the material extraction mechanism according to an embodiment of the present invention; Figure 5 For the embodiment of the present invention Figure 4 Structural diagram from another perspective; Figure 6 This is a schematic structural diagram of a return spring and a first slide rod according to an embodiment of the present invention; Figure 7 This is a schematic structural diagram of a distribution plate and an upper filter plate according to an embodiment of the present invention; Figure 8 This is a schematic structural diagram of a planetary gear and a gear ring according to an embodiment of the present invention; Figure 9 This is a schematic structural diagram of the connecting plate and bristles according to an embodiment of the present invention; Figure 10 This is a schematic structural diagram of the grinding wheel and grinding teeth according to an embodiment of the present invention.

[0023] Explanation of the accompanying symbols: 1. Storage tank; 11. Feed port; 12. Discharge port; 13. Vibration source; 14. Support plate; 15. Gear ring; 2. Lower filter plate; 3. Material collecting hopper; 31. Guide rail; 32. Discharge pipe; 4. Support shell; 41. Guide plate; 42. Sliding plate; 421. First slide rod; 43. Return spring; 44. Seal; 45. Support rod; 46. Guide rod; 47. Connecting rod; 48. Roller; 49. Material shifting member; 5. Rotation source; 51. Transmission rod; 511. Sun gear; 52. Transmission pipe; 53. Planetary gear; 6. Upper filter plate; 61. Feed plate; 7. Connecting plate; 71. Brush; 72. Cloth plate; 8. Connecting pipe; 81. Grinding teeth; 82. Grinding wheel. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figures 1-10 , clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments derived by ordinary technicians in this field fall within the scope of protection of the present invention.

[0025] In the first aspect, this embodiment provides a vibrating screen machine for tablet pills, referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A vibrating screening machine for tablet pills includes a storage tank 1, a feed port 11 and a discharge port 12 provided in the storage tank 1, a lower filter plate 2, a hopper 3, a discharge pipe 32, a guide rail 31, and a pumping mechanism for extracting material from the lower filter plate 2 downward. The lower filter plate 2 is fixedly connected to the interior of the storage tank 1. The lower filter plate 2 is conical and gradually lowers outward from the central axis. The lower filter plate 2 is used to receive material input through the feed port 11 and screen the material. The hopper 3 is fixedly connected to the outer side surface of the lower filter plate 2. The hopper 3 is fixedly connected to the inner side surface of the storage tank 1. Material that does not pass through the lower filter plate 2 falls into the hopper 3. The discharge pipe 32 is fixedly connected to the side wall of the hopper 3 and is used to transport the material in the hopper 3 to the outside of the storage tank 1.

[0026] Reference Figure 4 、 Figure 5 and Figure 6The guide rail 31 is fixedly connected to the inner side of the receiving hopper 3, and the guide rail 31 is wavy and undulating. The pumping device includes a support shell 4, a rotating source 5, a guide plate 41, a sliding plate 42, a first slide bar 421, a return spring 43, a seal 44, a support rod 45, a guide rod 46, a connecting rod 47 and a roller 48. The rotating source 5 is fixedly connected to the bottom of the storage tank 1, and the driving shaft of the rotating source 5 is fixedly connected to the transmission rod 51. The support shell 4 is vertically slidably connected to the transmission rod 51. For example, the support shell 4 and the transmission rod 51 are slidably connected in a key connection manner, so that the rotating source 5 can drive the support shell 4 to rotate through the transmission rod 51. A plurality of guide plates 41 and sliding plates 42 are circumferentially arranged within the support housing 4, and are alternately arranged. The upper surfaces of the guide plates 41 and sliding plates 42 are flush. The guide plates 41 are fixedly connected to the support housing 4, and the first slide bar 421 is fixedly connected to the sliding plate 42. The sliding plate 42 can slide radially along the support housing 4 via the first slide bar 421. A return spring 43 is sleeved on the outer side of the first slide bar 421 and disposed between the support housing 4 and the sliding plate 42. The return spring 43 is used to push the sliding plate 42 out of the support housing 4. A seal 44 is connected between the lower filter plate 2 and the guide plate 41. The seal 44 is rotatably connected to the lower filter plate 2 and fixedly connected to the guide plate 41. The middle portion of the seal 44 is made of a foldable or bendable material.

[0027] Reference Figure 4 The support rod 45 is fixedly connected to the upper surface of the guide plate 41, and the guide rod 46 is rotatably connected to the support rod 45. The guide rod 46 is disposed in the guide rail 31. The guide rod 46 can move axially along the guide rail 31 while rotating. The connecting rod 47 is fixedly connected to the lower bottom surface of the sliding plate 42, and the roller 48 is rotatably connected to the connecting rod 47. The roller 48 can abut against the inner side of the conical tank body of the storage tank 1.

[0028] Reference Figure 1 The outer side of the storage tank 1 is fixedly connected to a vibration source 13, which provides vibration energy, and the vibration energy is transmitted to the lower filter plate 2, which is beneficial for the lower filter plate 2 to screen the material.

[0029] The material falls through the feed port 11 onto the lower filter plate 2 for screening. The qualified material that passes through the lower filter plate 2 falls to the discharge port 12 for discharge. The unqualified material that does not pass through the lower filter plate 2 rolls along the upper surface of the lower filter plate 2 to the receiving hopper 3 and is discharged through the discharge pipe 32, thereby distinguishing qualified material from unqualified material. The rotation source 5 is started and drives the support shell 4 to rotate through the transmission rod 51. The guide plate 41 and the sliding plate 42 rotate synchronously with the support shell 4. The support rod 45 and the guide rod 46 rotate synchronously with the guide plate 41. Since the guide rail 31 is wavy, the guide rod 46 moves along the axial direction of the guide rail 31 while driving the guide plate 41 to reciprocate in the vertical direction through the support rod 45. The support shell 4 and the sliding plate 42 move synchronously with the guide plate 41.

[0030] As the guide plate 41 moves downward, it stretches the seal 44, increasing its internal volume, allowing the seal 44 to draw material downward through the lower filter plate 2. The sliding plate 42 moves downward synchronously with the guide plate 41. The downward movement of the sliding plate 42 is divided into two strokes. In the first stroke, the sliding plate 42 remains flush with the curved side surface of the guide plate 41. Since the sliding plate 42 and the upper surface of the guide plate 41 are flush, the sliding plate 42 and the guide plate 41 cooperate to maintain the seal at the bottom of the seal 44. At this time, the roller 48 does not abut the inner side surface of the storage tank 1. The second stroke is below the first stroke. At this time, the roller 48 abuts against the inner side surface of the conical tank body of the storage tank 1. The roller 48 continues to move downward. The conical inner side surface of the storage tank 1 pushes the roller 48 to move toward the central axis of the support shell 4. The roller 48 drives the sliding plate 42 to move toward the inside of the seal 44 through the connecting rod 47, so that the sliding plate 42 is separated from the seal 44, and the material falls from between the sliding plate 42 and the seal 44 to the discharge port 12. At this time, the return spring 43 is compressed.

[0031] As support housing 4 moves upward, return spring 43 pushes sliding plate 42 away from the central axis of support housing 4 and resets it, allowing sliding plate 42 to cooperate with guide plate 41 to seal the bottom of seal 44. This allows guide plate 41 and sliding plate 42 to move vertically downward, drawing material downward while controlling the seal at the bottom of seal 44. When seal 44 is sealed, it draws material downward from lower filter plate 2. When seal 44 is not sealed, material can be discharged from between sliding plate 42 and seal 44.

[0032] The sliding plate 42 and the guide plate 41 move back and forth in the vertical direction, driving the volume change of the internal space of the seal 44, thereby drawing the material on the surface of the lower filter plate 2 downward, increasing the material screening rate while reducing the material accumulated on the surface of the lower filter plate 2. At the same time, the seal 44 drives the air flow through the filter holes of the lower filter plate 2 to dredge the filter holes of the lower filter plate 2, reducing the probability of material clogging the filter holes in the lower filter plate 2 and improving the filtering efficiency of the lower filter plate 2 for the material.

[0033] Reference Figure 4 A material shifting piece 49 is provided inside the seal 44 , and the material shifting piece 49 is fixedly connected to the transmission rod 51 . The rotation of the material shifting piece 49 can shift the material to the outside of the sliding plate 42 , thereby facilitating the material to be output from between the sliding plate 42 and the seal 44 .

[0034] Reference Figure 2 and Figure 7 An upper filter plate 6 is positioned above the lower filter plate 2. This upper filter plate 6 is fixedly connected to the storage tank 1 and gradually descends in height from its edge to the central axis. Directly above this upper filter plate 6 is a distribution plate 72, fixedly connected to the storage tank 1 and positioned directly below the feed port 11. This distribution plate 72 delivers material to the circumferential edge of the upper filter plate 6, thereby evenly loading the upper filter plate 6. A conical feed plate 61 is fixedly attached to the bottom surface of the upper filter plate 6, conveying material to the discharge port 12. This feed plate 61 gradually descends from the central axis toward the outside. The upper filter plate 6 and the lower filter plate 2 perform dual filtration of the material, improving the quality of the final filtered product. Material passing through the upper filter plate 6 falls onto the feed plate 61, where it rolls down from the edge of the feed plate 61 to be discharged from the discharge port 12.

[0035] Reference Figure 8 The inner side of the storage tank 1 is fixedly connected to a support plate 14, which is fixedly connected to a gear ring 15. The outer side of the transmission rod 51 is fixedly sleeved with a sun gear 511. The outer side of the transmission rod 51 is rotatably sleeved with a transmission tube 52. The outer side of the transmission tube 52 is rotatably connected to a planetary gear 53. The planetary gear 53 is arranged between the sun gear 511 and the gear ring 15. The sun gear 511 and the gear ring 15 can mesh with the planetary gear 53. There is a speed difference between the transmission rod 51 and the transmission tube 52.

[0036] Reference Figure 7 and Figure 9The upper surface of the lower filter plate 2 is conical. A connecting plate 7 is rotatably mounted above the lower filter plate 2. This connecting plate 7 is fixedly connected to the transmission tube 52, and its bottom surface is parallel to the upper surface of the lower filter plate 2. This allows the rotation source 5, via the sun gear 511, planetary gears 53, and transmission tube 52, to drive the connecting plate 7 in rotation. Bristles 71 are fixedly attached to the bottom surface of the connecting plate 7, and are arranged along a spiral path away from the central axis of the connecting plate 7. The helical shape of the bristles 71 mates with the upper surface of the lower filter plate 2. Material moves along the spiral bristles 71, thereby increasing the material's travel path on the lower filter plate 2 and improving the screening efficiency of the lower filter plate 2. The bristles 71 rotate with the connecting plate 7 to flatten the material on the surface of the lower filter plate 2. At the same time, the seal 44 moves upward to transport the airflow upward through the lower filter plate 2. While cooperating with the bristles 71 to dredge the filter holes of the lower filter plate 2, the speed of material movement on the lower filter plate 2 is increased, further improving the filtering effect of the lower filter plate 2.

[0037] Reference Figure 10 A connecting pipe 8 is fixedly connected between the connecting plate 7 and the upper filter plate 6, and the connecting pipe 8 is fixedly connected to the connecting plate 7. Since the height of the upper filter plate 6 gradually decreases from the edge to the central axis, the material that does not pass through the upper filter plate 6 falls to the connecting pipe 8. The inner side surface of the connecting pipe 8 is fixedly connected to a plurality of grinding teeth 81 along the circumferential direction. A grinding wheel 82 is rotatably provided in the connecting pipe 8. The grinding wheel 82 is fixedly sleeved on the outer side surface of the transmission rod 51. The grinding wheel 82 can rotate under the drive of the rotation source 5. Since the connecting plate 7 is fixedly connected to the transmission pipe 52, the connecting plate 7 and the grinding wheel 82 rotate relative to each other. The grinding wheel 82 cooperates with the grinding teeth 81 to grind the material. The ground material falls to the lower filter plate 2 for re-filtration, thereby improving the efficiency of material use.

[0038] The vibrating screen machine for tablet pills according to an embodiment of the present invention operates as follows: material is conveyed through the feed port 11 to the upper filter plate 6. Material that passes through the upper filter plate 6 falls to the feed plate 61, where it rolls down from the edge of the feed plate 61 to the discharge port 12 for delivery. Material that does not pass through the upper filter plate 6 is ground by the grinding wheel 82 and then falls to the lower filter plate 2 for screening. As the guide plate 41 moves downward, it stretches the seal 44, causing the seal 44 to draw material downward. The sliding plate 42 and guide plate 41 continue to move downward, and the roller 48 abuts against the inner side of the conical tank 1. The conical inner side of the tank 1 pushes the roller 48 toward the central axis of the support shell 4. The sliding plate 42 moves toward the interior of the seal 44, causing it to disengage from the seal 44, and the material falls between the sliding plate 42 and the seal 44 to the discharge port 12. In a second aspect, an embodiment of the present invention provides a screening method for tablet pills, which is applied to a vibrating screening machine for tablet pills in the first aspect. The screening method is: S1, the material is transported to the upper filter plate 6 through the feed port 11, the material passing through the upper filter plate 6 falls to the conveying plate 61, and the material rolls down from the edge of the conveying plate 61 to the discharge port 12 to be discharged; S2, the material that has not passed through the upper filter plate 6 is ground by the grinding wheel 82 and then falls to the lower filter plate 2 for screening. When the guide plate 41 moves downward, the seal 44 is stretched, so that the seal 44 draws the material downward; S3, the sliding plate 42 and the guide plate 41 continue to move downward, the roller 48 abuts against the inner side surface of the conical tank body of the storage tank 1, and the conical inner side surface of the storage tank 1 pushes the roller 48 to move toward the central axis of the support shell 4, and the sliding plate 42 moves toward the inside of the seal 44, so that the sliding plate 42 is separated from the seal 44, and the material falls from between the sliding plate 42 and the seal 44 to the discharge port 12.

[0039] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vibrating sieve machine for tablet pills, comprising a storage tank (1) and a feed inlet (11) and a discharge outlet (12) provided in the storage tank (1), characterized in that: A lower filter plate (2) is fixedly connected inside the material storage tank (1), a receiving hopper (3) is fixedly connected to the outer side surface of the lower filter plate (2), a wavy guide rail (31) is fixedly connected to the inner side surface of the receiving hopper (3), a support shell (4) and a rotation source (5) for driving the support shell (4) to rotate are arranged below the material storage tank (1), a plurality of guide plates (41) and sliding plates (42) are arranged on the support shell (4) along the circumferential direction, a return spring (43) is arranged between the support shell (4) and the sliding plate (42), and the lower filter plate (2) is fixedly connected to the receiving hopper (3), and a wavy guide rail (31) is fixedly connected to the inner side surface of the receiving hopper (3). A sealing member (44) is connected between the filter plate (2) and the guide plate (41); a support rod (45) is fixedly connected to the upper surface of the guide plate (41); the support rod (45) is rotatably connected to a guide rod (46) that can move along the guide rail (31); a connecting rod (47) is fixedly connected to the lower bottom surface of the sliding plate (42); the connecting rod (47) is rotatably connected to a roller (48); the roller (48) can abut against the inner side surface of the conical tank body of the storage tank (1); and a vibration source (13) is fixedly connected to the outer side surface of the storage tank (1).

2. A vibrating sieve machine for tablet pills according to claim 1, characterized in that: A material shifting member (49) is disposed inside the sealing member (44), and the material shifting member (49) can shift the material to the outside of the sliding plate (42) when it rotates.

3. A vibrating sieve machine for tablet pills according to claim 1, characterized in that: An upper filter plate (6) is arranged above the lower filter plate (2), and a conveying plate (61) for conveying materials to the discharge port (12) is fixedly connected to the bottom surface of the upper filter plate (6).

4. A vibrating sieve machine for tablet pills according to claim 3, characterized in that: The upper surface of the lower filter plate (2) is a conical surface. A connecting plate (7) is rotatably arranged above the lower filter plate (2). The bottom surface of the connecting plate (7) is parallel to the upper surface of the lower filter plate (2). The connecting plate (7) can rotate under the drive of the rotation source (5). Bristles (71) are fixedly connected to the bottom surface of the connecting plate (7). The bristles (71) are arranged along a spiral trajectory in a direction away from the central axis of the connecting plate (7).

5. A vibrating sieve machine for tablet pills according to claim 4, characterized in that: A connecting pipe (8) is connected between the connecting plate (7) and the upper filter plate (6); a grinding tooth (81) is fixedly connected to the inner side surface of the connecting pipe (8); a grinding wheel (82) is rotatably arranged in the connecting pipe (8); and the grinding wheel (82) can rotate under the drive of the rotation source (5).

6. A vibrating sieve machine for tablet pills according to claim 3, characterized in that: A conical distribution plate (72) is fixedly arranged directly below the feed inlet (11), and the distribution plate (72) is arranged directly above the upper filter plate (6).

7. A screening method for tablet pills, applied to the vibrating screening machine for tablet pills as claimed in claim 5, characterized in that: include: S1, conveying the material to the upper filter plate (6) through the feed port (11), the material passing through the upper filter plate (6) falling to the feed conveyor plate (61), and the material rolling down from the edge of the feed conveyor plate (61) to the discharge port (12) to be discharged; S2, the material that has not passed through the upper filter plate (6) is ground by the grinding wheel (82) and then falls to the lower filter plate (2) for screening, and the guide plate (41) and the sliding plate (42) stretch the sealing member (44) when moving downward, so that the sealing member (44) extracts the material downward; S3, the sliding plate (42) and the guide plate (41) continue to move downward, the roller (48) abuts against the inner side surface of the conical tank body of the storage tank (1), the conical inner side surface of the storage tank (1) pushes the roller (48) to move toward the central axis of the support shell (4), and the sliding plate (42) moves toward the inside of the sealing member (44), so that the sliding plate (42) is separated from the sealing member (44), and the material falls from between the sliding plate (42) and the sealing member (44) to the discharge port (12).

8. A screening method for tablet pills according to claim 7, characterized in that: In S3, the guide plate (41) and the sliding plate (42) move vertically downward to extract material downward, and at the same time, can control whether the bottom of the seal (44) is sealed. When the bottom of the seal (44) is sealed, the seal (44) extracts material on the lower filter plate (2) downward. When the bottom of the seal (44) is not sealed, the material can be discharged from between the sliding plate (42) and the seal (44).

Images