Powder cleaning mechanism for tablet medicine forming

Abstract

The invention belongs to the technical field of medicine processing, and particularly relates to a tablet medicine forming powder cleaning mechanism which comprises a machine body and a powder cleaning assembly used for removing the surfaces of tablets. The first partition plates and the second partition plates are installed on the first disc in an annular array mode, and a powder cleaning channel is formed between the first partition plates and the second partition plates; the air inlet hole is formed in the first partition plate; the air outlet holes are formed in the second partition plate, and when the tablets pass through the powder cleaning channel, powder on the surfaces of the tablets is conveyed into the air inlet holes by airflow generated by the air outlet holes; through the arrangement of the first partition plate and the second partition plate, tablets can be kept in the middle of the powder cleaning channel under the dual effects of inertia and airflow exhaust of the second partition plate, neither make contact with the first partition plate nor collide with the second partition plate, and the tablets only make contact with the smooth first disc in the powder cleaning process; and friction and damage to the tablets are reduced, and the product quality is improved.

Description

Technical Field

[0001] The invention belongs to the field of medicine processing, in particular to a powder cleaning mechanism for tablet medicine forming. Background Art

[0002] Since powder often remains on the surface of tablets after processing and molding, in order to improve the appearance, quality and safety of the working environment of the medicine, a powder cleaning mechanism is needed to clean the powder on the surface of the tablets after tablet molding.

[0003] A patent application with publication number CN117066222A discloses a tablet powder removal device, including a cam box, a powder removal tank, and also including: a powder removal component and a powder cleaning component installed in the powder removal tank, the powder removal component including a powder removal pipe and a sieve plate, the sieve plate separates the powder removal pipe into a tablet chamber and a powder chamber, the powder cleaning component including a first powder outlet and a second powder outlet; a vibration component; a feed hopper and a discharge port provided on the powder removal tank.

[0004] The powder cleaning mechanism of the above scheme includes a spiral sieve plate and a fan. The tablets fall from above the sieve plate. Since the sieve plate has a spiral structure, the tablets spirally slide from top to bottom according to the shape of the sieve plate. While sliding, the fan blows air to clean the tablets. The powder is blown off the surface of the tablets and discharged through the gaps in the sieve plate to achieve the purpose of powder cleaning. However, there are many gaps on the sieve plate, and the friction between the tablets and the sieve plate is large, which can easily cause scratches or wear on the tablets, and the gaps are easily blocked, affecting the powder cleaning efficiency.

[0005] To this end, the present invention provides a powder cleaning mechanism for tablet medicine molding. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the powder cleaning mechanism for tablet medicine molding described in the present invention includes a machine body and a powder cleaning component for removing the powder from the surface of the tablet, and the powder cleaning component includes: a No. 1 disc rotatably mounted on the machine body; a No. 1 partition and a No. 2 partition mounted in a ring array on the No. 1 disc, a powder cleaning channel formed between the No. 1 partition and the No. 2 partition; an air inlet provided on the No. 1 partition; and an air outlet provided on the No. 2 partition. When the tablet passes through the powder cleaning channel, the airflow generated by the air outlet moves the powder on the surface of the tablet into the air inlet.

[0008] Preferably, the powder cleaning component also includes a No. 2 disc rotatably mounted on the machine body, the No. 2 disc has a downwardly concave shape, and a number of No. 3 partitions and No. 4 partitions are provided on the No. 2 disc, and the functions of the No. 3 partitions and the No. 4 partitions are the same.

[0009] Preferably, a No. 3 disc is installed on the upper surface of the No. 1 partition and the No. 2 partition, the No. 3 disc is rotatably connected to the body, the No. 2 partition is rotatably connected to the No. 3 disc, and the No. 1 partition is fixedly connected to the No. 3 disc.

[0010] Preferably, the mechanism also includes two groups of drive components one and drive components two for driving the movement of the No. 2 partition and the No. 4 partition respectively. The structures of the drive component one and the drive component two are consistent. The drive component one includes: a No. 1 spring fixedly installed between the No. 2 partition and the No. 3 disc; an arc-shaped plate fixedly installed on the No. 2 partition; a No. 1 trapezoidal block fixedly installed on the arc-shaped plate; a feed pipe rotatably installed on the body, the feed pipe is rotatably connected to the No. 1 disc, and an opening for tablets to enter and exit is opened on the feed pipe; a No. 2 trapezoidal block fixedly installed on the feed pipe, the No. 2 trapezoidal block adopts a telescopic structure, and the No. 1 trapezoidal block is located within the moving range of the No. 2 trapezoidal block.

[0011] Preferably, the surfaces of the No. 1 disc and the No. 2 disc in contact with the tablets have a wavy structure.

[0012] Preferably, the mechanism also includes a flip assembly installed on the body, and the flip assembly includes: a No. 1 ring rotatably installed on the body; a telescopic rod fixedly installed on the No. 1 ring; a mounting plate fixedly installed on the telescopic rod; a plurality of connecting plates rotatably installed on the mounting plate, the connecting plates are located on the outside of the No. 1 disc, the number of the connecting plates is consistent with the number of the No. 1 partition, and the connecting plates are used to receive tablets thrown out from the No. 1 disc; a No. 1 clamp and a No. 2 clamp slidably installed on the connecting plate, the No. 1 clamp and the No. 2 clamp are used to clamp and release tablets; a baffle slidably installed on the No. 3 disc, a No. 2 spring is installed between the baffle and the No. 3 disc, and the baffle is used to close the channel between the No. 1 partition and the No. 2 partition after the connecting plate is removed.

[0013] Preferably, the flip assembly also includes: a screw rod rotatably mounted on the connecting plate, the screw rod being threadedly connected to the No. 2 splint; a rack plate for driving the screw rod to rotate; a ratchet for driving the rack plate to move, the ratchet being rotatably connected to the connecting plate, and a torsion spring being installed between the ratchet and the connecting plate; a pawl for limiting the unidirectional rotation of the ratchet, the pawl adopts a telescopic structure, the pawl is slidably connected to the mounting plate, and a No. 3 spring is installed between the pawl and the mounting plate; a push plate for driving the pawl to slide; a rotating rod for driving the push plate to move, the two ends of the rotating rod being rotatably connected to the push plate and the No. 1 splint respectively; a No. 4 spring installed between the No. 1 splint and the connecting plate.

[0014] Preferably, the body contains two groups of the powder cleaning components and the turning components distributed vertically.

[0015] Preferably, the mechanism further includes: a No. 4 disc rotatably mounted on the body; a No. 2 ring fixedly mounted on the body, the No. 4 disc being rotatably connected to the No. 2 ring, a No. 1 channel being provided between the No. 4 disc and the No. 2 ring, and a No. 2 channel being provided between the No. 4 disc and the body.

[0016] The beneficial effects of the present invention are as follows: 1. The powder cleaning mechanism for tablet drug molding described in the present invention, by providing a No. 1 partition and a No. 2 partition, during the powder cleaning process, under the dual effects of inertia and the exhaust airflow of the No. 2 partition, the tablet will remain in the middle position of the powder cleaning channel, neither contacting the No. 1 partition nor colliding with the No. 2 partition, so that the tablet only contacts the No. 1 disc during the powder cleaning process. The No. 1 disc adopts a smooth surface material, which reduces the friction on the tablet compared to the sieve plate, ensuring the powder cleaning efficiency while reducing the damage to the tablet surface, thereby improving product quality.

[0017] 2. The powder cleaning mechanism for tablet drug molding described in the present invention can close the powder cleaning channel by setting a driving component 1, and control the movement of the No. 2 partition in the powder cleaning channel to reduce the distance between the No. 1 partition and the No. 2 partition, thereby increasing the air flow intensity, so that the powder attached to the No. 1 disc in the powder cleaning channel is quickly blown into the No. 1 partition, ensuring that there is no residual powder in the powder cleaning channel. Subsequently, the powder cleaning channel is opened again, and the remaining powder cleaning channels are closed. Repeating the above operation can realize cleaning of the powder cleaning channels one by one to avoid the residual powder in the powder cleaning channel from adhering to subsequent tablets and affecting the powder cleaning effect.

[0018] 3. The powder cleaning mechanism for tablet drug molding described in the present invention is provided with a turning component to mechanically turn the tablet over to avoid the problem of the tablet always keeping one side facing up during powder cleaning, thereby achieving a better powder cleaning effect. At the same time, it can also achieve quantitative powder cleaning of the tablet through the No. 2 disc, further improving the powder cleaning efficiency.

[0019] 4. The powder cleaning mechanism for tablet drug molding described in the present invention reduces the weight of tablets because some tablets may suffer severe wear or breakage during the powder cleaning process. By setting up channel 1 and channel 2, tablets can be effectively separated according to their weight, ensuring that the quality of the tablets finally discharged meets the standards, thereby improving overall production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1is a perspective view of embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the internal structure of the body of the present invention; Figure 3 It is a structural schematic diagram of the second disc of the present invention; Figure 4 is a cross-sectional view of the first and second discs of the present invention; Figure 5 It is a schematic structural diagram of the No. 1 separator and the No. 2 separator of the present invention; Figure 6 It is a structural schematic diagram of the connecting plate of the present invention; Figure 7 is a cross-sectional view of the first and second splints of the present invention; In the figure: 1. Machine body; 2. Powder cleaning assembly; 21. Disc No. 1; 22. Partition No. 1; 23. Partition No. 2; 24. Air inlet; 25. Air outlet; 26. Disc No. 2; 27. Partition No. 3; 28. Partition No. 4; 3. Disc No. 3; 4. Drive assembly 1; 41. Spring No. 1; 42. Arc plate; 43. Trapezoidal block No. 1; 44. Feed pipe; 45. Opening; 46. Trapezoidal block No. 2; 5. Flip assembly; 51. Ring No. 1; 52. Telescopic rod; 53. Mounting plate; 54. Connecting plate; 55. Clamp No. 1; 56. Clamp No. 2; 57. Baffle; 58. Spring No. 2; 59. Screw; 510. Rack plate; 511. Ratchet; 512. Torsion spring; 513. Pawl; 514. Spring No. 3; 515. Push plate; 516. Rotating rod; 517. Spring No. 4; 6. Disc No. 4; 7. Ring No. 2; 8. Channel No. 1; 9. Channel No. 2; 10. Drive assembly 2. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-7 As shown, the powder cleaning mechanism for tablet medicine molding according to an embodiment of the present invention includes a body 1 and a powder cleaning component 2 for removing the powder from the surface of the tablet, the powder cleaning component 2 includes: a No. 1 disc 21 rotatably mounted on the body 1; a No. 1 partition 22 and a No. 2 partition 23 mounted in a ring array on the No. 1 disc 21, a powder cleaning channel is formed between the No. 1 partition 22 and the No. 2 partition 23; an air inlet 24 provided on the No. 1 partition 22; and an air outlet 25 provided on the No. 2 partition 23. When the tablet passes through the powder cleaning channel, the airflow generated by the air outlet 25 moves the powder on the surface of the tablet into the air inlet 24.

[0024] Specifically, the powder cleaning mechanism of the existing device includes a spiral sieve plate and a fan. Tablets fall from above the sieve plate. Due to the spiral structure of the sieve plate, the tablets spirally slide from top to bottom according to the shape of the sieve plate. As the tablets slide, the fan blows air to clean the tablets. Powder is blown off the surface of the tablets and discharged through the gaps in the sieve plate to achieve the purpose of powder cleaning. However, there are many gaps on the sieve plate, and the friction between the tablets and the sieve plate is large, which can easily cause scratches or wear on the tablets. In addition, the gaps are easily blocked, affecting the powder cleaning efficiency. Before operation, the No. 2 partition 23 is connected to the blower, and the No. 1 partition 22 is connected to the exhaust device. During operation, the tablets are placed on the No. 1 disc 21, and the No. 1 disc 21 is controlled to rotate clockwise so that the tablets enter each powder cleaning channel evenly under the action of centrifugal force. Due to the action of inertia, the tablets tend to move toward the No. 2 partition 23. Under the impact of the airflow discharged from the No. 2 partition 23, the tablets will remain in the middle position of the powder cleaning channel, neither contacting the No. 1 partition 22 nor colliding with the No. 2 partition 23. In this process, the powder on the tablets is blown by the airflow and will enter the No. 1 partition 22 and be quickly discharged through the exhaust device. The tablets continue to rotate to the outlet of the powder cleaning channel, and the tablets that have been cleaned of powder are collected, and the powder cleaning action is completed. By setting the No. 1 partition 22 and the No. 2 partition 23, the tablets only come into contact with the No. 1 disc 21 during the powder cleaning process. The No. 1 disc 21 adopts a smooth surface material, which reduces the friction of the tablets compared to the sieve plate, ensuring the powder cleaning efficiency while reducing the damage to the tablet surface and improving product quality.

[0025] like Figure 2 and Figure 3 As shown, the powder cleaning component 2 also includes a No. 2 disc 26 rotatably mounted on the body 1. The No. 2 disc 26 has a downwardly concave shape. A number of No. 3 partitions 27 and No. 4 partitions 28 are provided on the No. 2 disc 26. The functions of the No. 3 partitions 27 and the No. 4 partitions 28 are the same.

[0026] Specifically, the outer circumference of the No. 2 disk 26 is larger than the No. 1 disk 21, so that the tablets can fall on the No. 2 disk 26 after being moved out of the powder cleaning channel, and undergo secondary powder cleaning through the powder cleaning channels of the No. 3 partition 27 and the No. 4 partition 28 on the No. 2 disk 26 to ensure that the residual powder is completely removed. The tablets after powder cleaning fall from the center of the No. 2 disk 26 to the collection device.

[0027] like Figure 3-5 As shown, the upper surface of the No. 1 partition 22 and the No. 2 partition 23 is installed with the No. 3 disc 3, the No. 3 disc 3 is rotatably connected to the body 1, the No. 2 partition 23 is rotatably connected to the No. 3 disc 3, and the No. 1 partition 22 is fixedly connected to the No. 3 disc 3.

[0028] Specifically, by setting the No. 3 disc 3, the powder is prevented from flying everywhere and can enter the No. 1 partition 22 well. Taking the 6 powder cleaning channels as an example, during the powder cleaning process, two or four symmetrical powder cleaning channels are closed, and the remaining channels continue to work. At this time, the No. 2 partition 23 in the closed powder cleaning channel can be controlled to rotate so that the distance between the No. 1 partition 22 and the No. 2 partition 23 is reduced, thereby increasing the air flow intensity, so that the powder attached to the No. 1 disc 21 in the powder cleaning channel is quickly blown into the No. 1 partition 22 and efficiently discharged through the exhaust device to ensure that there is no residual powder in the powder cleaning channel. Then, the powder cleaning channel is opened again, and the remaining powder cleaning channels are closed. Repeating the above operation can realize the cleaning of the powder cleaning channels one by one to avoid the residual powder in the powder cleaning channel from adhering to subsequent tablets and affecting the powder cleaning effect.

[0029] like Figure 3-5 As shown, the mechanism also includes two groups of drive components 1 4 and drive components 2 10 for driving the movement of the No. 2 partition 23 and the No. 4 partition 28 respectively. The structures of the drive components 1 4 and 2 10 are consistent. The drive component 1 4 includes: a No. 1 spring 41 fixedly mounted between the No. 2 partition 23 and the No. 3 disc 3; an arc-shaped plate 42 fixedly mounted on the No. 2 partition 23; a No. 1 trapezoidal block 43 fixedly mounted on the arc-shaped plate 42; a feed pipe 44 rotatably mounted on the body 1, the feed pipe 44 is rotatably connected to the No. 1 disc 21, and an opening 45 for tablets to enter and exit is provided on the feed pipe 44; a No. 2 trapezoidal block 46 fixedly mounted on the feed pipe 44, the No. 2 trapezoidal block 46 adopts a telescopic structure, and the No. 1 trapezoidal block 43 is located within the moving range of the No. 2 trapezoidal block 46; a No. 2 trapezoidal block 46 fixedly mounted on the feed pipe 44, the No. 2 trapezoidal block 46 adopts a telescopic structure, and the No. 1 trapezoidal block 43 is located within the moving range of the No. 2 trapezoidal block 46.

[0030] Specifically, during operation, the feed pipe 44 is controlled to rotate, and the tablets enter from the top of the feed pipe 44 and are affected by the centrifugal force of the feed pipe 44, and evenly enter each powder cleaning channel from the opening 45 to perform powder cleaning. The position where the feed pipe 44 does not have the opening 45 will play a sealing role to prevent the tablets from accidentally entering the non-working powder cleaning channel. When the No. 1 disc 21 rotates, the feed pipe 44 rotates at the same speed, that is, the No. 1 disc 21 and the feed pipe 44 remain relatively stationary, but the feed pipe 44 will intermittently rotate relative to the No. 1 disc 21. When the feed pipe 44 rotates relative to the No. 1 disc 21, the closed position changes during the rotation process, and the No. 2 trapezoidal block 46 rotates together. During the rotation of the No. 2 trapezoidal block 46, the No. 1 trapezoidal block 46 rotates with the No. 1 trapezoidal block 46. The trapezoidal block 43 contacts and pushes the No. 1 trapezoidal block 43 to rotate. The rotation of the No. 1 trapezoidal block 43 drives the arc plate 42 and the No. 2 partition 23 to rotate together. The rotation of the No. 2 partition 23 reduces the distance between it and the No. 1 partition 22, so that the powder remaining on the powder cleaning channel can be cleaned. At this time, the No. 1 spring 41 is compressed, and the feed pipe 44 continues to rotate, driving the No. 2 trapezoidal block 46 to rotate to extend and retract through the No. 1 trapezoidal block 43. Under the action of the elastic force of the No. 1 spring 41, the No. 1 trapezoidal block 43, the arc plate 42 and the No. 2 partition 23 return to their original positions. At this time, the opening 45 of the feed pipe 44 rotates to the position of the powder cleaning channel, so that the powder cleaning channel can clean the tablets. In this cycle, each powder cleaning channel is cleaned.

[0031] like Figure 4 As shown, the surfaces of the No. 1 disc 21 and the No. 2 disc 26 that come into contact with the tablets have a wavy structure.

[0032] Specifically, by setting the wave shape, the residence time of the tablet on the No. 1 disc 21 is increased. At the same time, the wave-shaped design will guide the wind to concentrate, thereby enhancing the separation effect of the powder and the drug. When the tablet slides up and down on the surface of the No. 1 disc 21, it will vibrate itself, which facilitates the falling off of the powder on the tablet, further improving the powder cleaning effect.

[0033] like Figure 2 、 Figure 6 and Figure 7As shown, the mechanism also includes a flip assembly 5 installed on the body 1, and the flip assembly 5 includes: a No. 1 ring 51 rotatably installed on the body 1; a telescopic rod 52 fixedly installed on the No. 1 ring 51; a mounting plate 53 fixedly installed on the telescopic rod 52; a plurality of connecting plates 54 rotatably installed on the mounting plate 53, the connecting plates 54 are located on the outside of the No. 1 disc 21, and the number of the connecting plates 54 is consistent with the number of the No. 1 partition 22, and the connecting plates 54 are used to receive tablets thrown out from the No. 1 disc 21; a No. 1 clamping plate 55 and a No. 2 clamping plate 56 slidably installed on the connecting plate 54, and the No. 1 clamping plate 55 and the No. 2 clamping plate 56 are used to clamp and release tablets; a baffle 57 slidably installed on the No. 3 disc 3, and a No. 2 spring 58 is installed between the baffle 57 and the No. 3 disc 3, and the baffle 57 is used to close the channel between the No. 1 partition 22 and the No. 2 partition 23 after the connecting plate 54 is removed.

[0034] Specifically, the No. 1 ring 51 rotates at the same speed as the No. 1 disc 21. In the initial state, the No. 2 spring 58 is in a stretched state, the No. 1 disc 21 rotates, and the tablets are cleaned by the powder cleaning component 2 under the action of centrifugal force. The cleaned tablets move to the No. 1 clamping plate 55. When a large number of tablets are gathered on the No. 1 clamping plate 55, the No. 2 clamping plate 56 is controlled to move downward to clamp the tablets on the No. 1 clamping plate 55. During the downward movement of the No. 2 clamping plate 56, the baffle 57 is affected by the elastic force of the No. 2 spring 58 and moves downward to block the outlet of the powder cleaning channel. Then the telescopic rod 52 is controlled to retract, and the connecting plate 54 is controlled to rotate, driving the No. 1 clamping plate 55 to move downward. The first and second splints 55 and 56 rotate synchronously with the tablets until the other side of the tablets faces upwards. The second splint 56 is controlled to move away from the first splint 55, and the tablets slide from the second splint 56 to the second disc 26 for secondary powder cleaning. The telescopic rod 52 is then controlled to reset and the connecting plate 54 rotates to its initial position. During this process, the second splint 56 pushes the baffle 57 to move upwards so that the tablets can be received by the first splint 55 again, thereby realizing continuous flipping and powder cleaning of the tablets. By setting up the flipping assembly 5, the tablets are mechanically flipped to avoid the problem of the tablets always keeping one side facing upwards during powder cleaning, so that the powder cleaning effect is better.

[0035] like Figure 2 、 Figure 6 and Figure 7As shown, the flip assembly 5 also includes: a screw rod 59 rotatably mounted on the connecting plate 54, the screw rod 59 being threadedly connected to the second splint 56; a rack plate 510 for driving the screw rod 59 to rotate; a ratchet 511 for driving the rack plate 510 to move, the ratchet 511 being rotatably connected to the connecting plate 54, and a torsion spring 512 being installed between the ratchet 511 and the connecting plate 54; a pawl 513 for limiting the unidirectional rotation of the ratchet 511, the pawl 513 adopts a telescopic structure, the pawl 513 is slidably connected to the mounting plate 53, and a No. 3 spring 514 is installed between the pawl 513 and the mounting plate 53; a push plate 515 for driving the pawl 513 to slide; a rotating rod 516 for driving the push plate 515 to move, the two ends of the rotating rod 516 being rotatably connected to the push plate 515 and the No. 1 splint 55 respectively; a No. 4 spring 517 installed between the No. 1 splint 55 and the connecting plate 54.

[0036] When the tablet is dropped onto the first clamping plate 55, the first clamping plate 55 moves downward under the action of gravity, and the downward movement of the first clamping plate 55 drives the rotating rod 516 to rotate, and the rotation of the rotating rod 516 causes the push plate 515 to move in the direction close to the ratchet 513. When a certain amount of tablets are gathered on the first clamping plate 55, the push plate 515 pushes the ratchet 513 to move until the ratchet 513 is no longer in contact with the ratchet wheel 511. At this time, the third spring 514 is compressed, and the ratchet wheel 511 rotates under the action of the elastic force of the torsion spring 512. The rotation of the ratchet wheel 511 drives the rack plate 510 to move. The movement of the rack plate 510 causes the screw rod 59 to rotate. The rotation of the screw rod 59 drives the second clamping plate 56 to move downward until the tablet is clamped between the first clamping plate 55 and the second clamping plate 56. Then the telescopic rod 52 is controlled to retract, the connecting plate 54 rotates, and the connecting plate 54 rotates to drive When the second plate 55 is in the state of being moved, the second plate 56 is moved away from the first plate 55 and the second plate 56 is moved to the first plate 55. When the second plate 55 is in the state of being moved, the second plate 56 is moved to the first plate 55. When the second plate 55 is in the state of being moved, the second plate 56 is moved to the first plate 55. When the second plate 55 is in the state of being moved, the second plate 56 is moved to the first plate 55. When the second plate 55 is in the state of being moved, the second plate 56 is moved to the first plate 55.

[0037] like Figure 2 and Figure 3 As shown, the machine body 1 contains two sets of powder cleaning components 2 and turnover components 5 distributed vertically.

[0038] Specifically, by providing two sets of powder cleaning components 2 and turnover components 5, the tablets can be cleaned and turned over multiple times, further improving the powder cleaning efficiency.

[0039] like Figure 2 As shown, the mechanism also includes: a No. 4 disc 6 rotatably mounted on the body 1; a No. 2 ring 7 fixedly mounted on the body 1, the No. 4 disc 6 is rotatably connected to the No. 2 ring 7, a No. 1 channel 8 is provided between the No. 4 disc 6 and the No. 2 ring 7, and a No. 2 channel 9 is provided between the No. 4 disc 6 and the body 1.

[0040] Specifically, the No. 4 disc 6 is controlled to rotate, and the powder-cleaned tablets fall onto the No. 4 disc 6. The tablets are moved outward by the centrifugal force. Since some tablets will be severely worn or broken during the powder cleaning process, their weight will be reduced. According to the weight of the tablets, the light tablets will be thrown into the No. 2 channel 9 under the action of centrifugal force, and the tablets without problems will enter the No. 1 channel 8 and be discharged from the body 1. By setting the No. 1 channel 8 and the No. 2 channel 9, the tablets are effectively separated to ensure that the quality of the tablets finally discharged meets the standards, thereby improving the overall production efficiency and product quality.

[0041] Working principle: Before working, connect the No.2 partition 23 with the blower, and connect the No.1 partition 22 with the exhaust device. During working, control the rotation of the feed pipe 44, and the tablets enter from the top of the feed pipe 44 and are affected by the centrifugal force of the feed pipe 44, and evenly enter each powder cleaning channel from the opening 45. Control the No.1 disc 21 to rotate clockwise. The tablets will have a tendency to move toward the No.2 partition 23 due to inertia, but will be impacted by the airflow discharged from the No.2 partition 23. The tablets will remain in the middle position of the powder cleaning channel, neither contacting the No.1 partition 22 nor colliding with the No.2 partition 23. In this process, the powder on the tablets is blown by the airflow and will enter the No.1 partition 22 and be quickly discharged through the exhaust device. The tablets continue to move to The powder cleaning channel exits and falls on the No. 1 splint 55. The No. 1 splint 55 moves downward under the action of gravity. The downward movement of the No. 1 splint 55 drives the rotating rod 516 to rotate. The rotation of the rotating rod 516 causes the push plate 515 to move in the direction close to the pawl 513. When a certain amount of tablets are gathered on the No. 1 splint 55, the push plate 515 pushes the pawl 513 to move until the pawl 513 is no longer in contact with the ratchet 511. At this time, the No. 3 spring 514 is compressed, and the ratchet 511 rotates under the action of the elastic force of the torsion spring 512. The rotation of the ratchet 511 drives the rack plate 510 to move. The movement of the rack plate 510 causes the screw rod 59 to rotate. The rotation of the screw rod 59 drives the No. 2 splint 56 to move downward until the tablets are clamped between the No. 1 splint 55 and the No. 2 splint 56. The pawl 513 is retracted to facilitate the rotation of the ratchet 511. When the other side of the tablet faces upward, the connecting plate 54 is controlled to rotate in the opposite direction. During the rotation, the ratchet 511 is restricted by the pawl 513 and cannot rotate with the connecting plate 54. That is, the ratchet 511 rotates relative to the connecting plate 54, and the screw rod 59 is driven to rotate through the rack plate 510, so that the second splint 56 is away from the first splint 55, which can facilitate the tablet to slide from the second splint 56 to the second disc 26. When 54 rotates to its original position, the torsion spring 512 is in a twisted state, preparing for the next flipping operation. After the tablet slides from the No. 2 splint 56 to the No. 2 disc 26, it can be cleaned for the second time. After the powder is cleaned by the No. 2 disc 26, it falls again to the powder cleaning component 2 and the flipping component 5 below for multiple powder cleanings. The cleaned tablet falls on the No. 4 disc 6. Since the No. 4 disc 6 keeps rotating, the tablet moves outward under the action of centrifugal force. Since some tablets will cause severe wear or breakage during the powder cleaning process, their weight will be reduced. Depending on the weight of the tablets, light tablets will be thrown into the No. 2 channel 9 under the action of centrifugal force, and tablets without problems will enter the No. 1 channel 8 and be discharged from the body 1.

[0042] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder cleaning mechanism for tablet drug forming, comprising a body (1) and a powder cleaning component (2) for removing powder from the surface of a tablet, characterized in that: The powder cleaning component (2) comprises: Rotating a disc (21) mounted on the machine body (1); A plurality of annular arrays of a first partition plate (22) and a second partition plate (23) are mounted on the first disc (21), and a powder cleaning channel is formed between the first partition plate (22) and the second partition plate (23); An air inlet hole (24) provided on the first partition plate (22); The air outlet (25) is provided on the second partition (23). When the tablet passes through the powder cleaning channel, the airflow generated by the air outlet (25) moves the powder on the surface of the tablet into the air inlet (24).

2. The powder cleaning mechanism for tablet medicine molding according to claim 1, characterized in that: The powder cleaning component (2) further comprises a No. 2 disc (26) rotatably mounted on the machine body (1), wherein the No. 2 disc (26) is in a downwardly concave shape, and a plurality of No. 3 partitions (27) and No. 4 partitions (28) are provided on the No. 2 disc (26), wherein the No. 3 partitions (27) and the No. 4 partitions (28) have the same function.

3. The powder cleaning mechanism for tablet medicine molding according to claim 2, characterized in that: A third disc (3) is installed on the upper surface of the first partition plate (22) and the second partition plate (23); the third disc (3) is rotatably connected to the machine body (1); the second partition plate (23) is rotatably connected to the third disc (3); and the first partition plate (22) is fixedly connected to the third disc (3).

4. The powder cleaning mechanism for tablet medicine molding according to claim 3, characterized in that: The mechanism further comprises two groups of drive components 1 (4) and 2 (10) for driving the second partition plate (23) and the fourth partition plate (28) to move, respectively. The drive components 1 (4) and 2 (10) have the same structure. The drive components 1 (4) include: A No. 1 spring (41) fixedly mounted between the No. 2 partition plate (23) and the No. 3 disc (3); A curved plate (42) fixedly mounted on the second partition (23); A trapezoidal block (43) fixedly mounted on the arc-shaped plate (42); A feed pipe (44) is rotatably mounted on the machine body (1), the feed pipe (44) being rotatably connected to the first disc (21), and an opening (45) for tablets to enter and exit is provided on the feed pipe (44); A No. 2 trapezoidal block (46) is fixedly mounted on the feed pipe (44), wherein the No. 2 trapezoidal block (46) adopts a telescopic structure, and the No. 1 trapezoidal block (43) is located within the moving range of the No. 2 trapezoidal block (46).

5. The powder cleaning mechanism for tablet medicine molding according to claim 4, characterized in that: The surfaces of the No. 1 disc (21) and the No. 2 disc (26) that are in contact with the tablets have a wavy structure.

6. The powder cleaning mechanism for tablet medicine molding according to claim 4, characterized in that: The mechanism further comprises a turning assembly (5) mounted on the body (1), wherein the turning assembly (5) comprises: Rotating a first ring (51) mounted on the machine body (1); A telescopic rod (52) fixedly mounted on the first ring (51); a mounting plate (53) fixedly mounted on the telescopic rod (52); a plurality of connecting plates (54) rotatably mounted on the mounting plate (53), the connecting plates (54) being located outside the first disc (21), the number of the connecting plates (54) being the same as the number of the first partition plates (22), and the connecting plates (54) being used to receive tablets ejected from the first disc (21); A first clamping plate (55) and a second clamping plate (56) are slidably mounted on the connecting plate (54), wherein the first clamping plate (55) and the second clamping plate (56) are used to clamp and release tablets; A baffle (57) is slidably mounted on the third disc (3), and a second spring (58) is installed between the baffle (57) and the third disc (3). The baffle (57) is used to close the passage between the first partition (22) and the second partition (23) after the connecting plate (54) is removed.

7. The powder cleaning mechanism for tablet medicine molding according to claim 6, characterized in that: The flip assembly (5) further comprises: Rotating a screw rod (59) mounted on the connecting plate (54), wherein the screw rod (59) is threadedly connected to the second clamping plate (56); A rack plate (510) for driving the screw rod (59) to rotate; a ratchet (511) for driving the rack plate (510) to move, the ratchet (511) being rotationally connected to the connecting plate (54), and a torsion spring (512) being installed between the ratchet (511) and the connecting plate (54); a pawl (513) for limiting the one-way rotation of the ratchet wheel (511), the pawl (513) adopting a telescopic structure, the pawl (513) being slidably connected to the mounting plate (53), and a third spring (514) being installed between the pawl (513) and the mounting plate (53); A push plate (515) for driving the pawl (513) to slide; a rotating rod (516) for driving the push plate (515) to move, wherein both ends of the rotating rod (516) are rotatably connected to the push plate (515) and the first clamping plate (55) respectively; A fourth spring (517) is installed between the first clamping plate (55) and the connecting plate (54).

8. The powder cleaning mechanism for tablet medicine molding according to claim 6, characterized in that: The machine body (1) contains two groups of powder cleaning components (2) and turnover components (5) distributed vertically.

9. The powder cleaning mechanism for tablet medicine molding according to claim 1, characterized in that: The agency also includes: Rotating a fourth disc (6) mounted on the machine body (1); A No. 2 circular ring (7) is fixedly mounted on the machine body (1), the No. 4 circular disc (6) is rotatably connected to the No. 2 circular ring (7), a No. 1 channel (8) is provided between the No. 4 circular disc (6) and the No. 2 circular ring (7), and a No. 2 channel (9) is provided between the No. 4 circular disc (6) and the machine body (1).

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