A pill particle grinding and forming device for pharmaceutical production and processing

Abstract

A pill particle grinding and forming device for pharmaceutical production and processing relates to the field of pharmaceutical production and processing, comprising a grinding tower body, and a grinding mechanism and a driving mechanism arranged on the grinding tower body. The grinding mechanism is used to grind the surface of granular pill particles to make them closer to a spherical structure. The grinding mechanism comprises a grinding roller, a spiral blade and a grinding screen. The grinding roller is rotatably arranged inside the grinding tower body, the spiral blade is arranged on the outer surface of the grinding roller, the grinding screen is arranged on the outside of the grinding roller, and the power output shaft of the driving mechanism is connected to the grinding roller. The pill particle grinding and forming device for pharmaceutical production and processing of the present invention rotates the granular pill particles through the spiral blades. Since the pill particles are sandwiched between adjacent spiral blades, the edges of the adjacent spiral blades continuously grind and polish the surface of the pill particles, so that the surface of the pill particles gradually approaches a spherical structure and the diameter of the pill particles is more uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of pharmaceutical production and processing, in particular to a pill particle grinding and forming device used in pharmaceutical production and processing. Background Art

[0002] In modern medicine, drug dosage forms and preparation processes are constantly innovating and developing to improve efficacy, stability, and patient compliance. Grinding drugs into spherical particles is a crucial technology. Traditional Chinese medicine, a treasure of traditional Chinese medicine, boasts a rich variety of dosage forms, with pills being widely used in medical practice. Spherical pills are convenient to take and carry. Their relatively small size makes them easy to swallow, making them particularly suitable for children and patients with swallowing difficulties. Furthermore, their portability facilitates timely medication administration when traveling or on the go. Furthermore, they prolong the effectiveness of the drug. Excipients are often used in pill production to slowly release the drug, thereby extending its effectiveness, reducing the frequency of medication use, and improving patient compliance. Furthermore, they facilitate storage. Pills generally have good stability and can be stored for long periods under certain conditions without deteriorating. They facilitate uniform mixing during the formulation process, ensuring consistent levels of active ingredients in each dose, improving drug quality stability and controllability. Furthermore, they resist breakage, aggregation, or separation during storage and transportation, helping to maintain drug performance. From a drug development perspective, spherical particle preparation technology allows for flexible adjustment of drug release rates. By selecting appropriate materials and process parameters, rapid, slow, or controlled release can be achieved to meet the needs of different disease treatments. For example, for chronic disease treatments requiring long-term efficacy, spherical particles can be designed for controlled release.

[0003] However, in certain specific cases, Chinese medicine pills need to be ground. At present, various mechanical equipment, such as electric grinders and ball mills, have been introduced for the grinding of Chinese medicine pills. However, these devices have improved the efficiency and quality of grinding to a certain extent, but they also face some challenges. On the one hand, different Chinese medicine pills have complex ingredients and their physical properties such as hardness and brittleness vary. Some Chinese medicine pills with a hard texture are prone to incomplete grinding and uneven particle size distribution during the grinding process, which will cause the surface of the pills to be uneven and of different sizes, affecting the subsequent drug use effect. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the object of the present invention is to provide a pill particle grinding and forming device for pharmaceutical production and processing, so that the surface of the pill particles gradually approaches a spherical structure, and the diameter of the ground pill particles is more uniform.

[0006] To achieve the above-mentioned purpose, the present invention proposes a pill particle grinding and forming device for pharmaceutical production and processing, comprising a grinding tower body, and a grinding mechanism and a driving mechanism arranged on the grinding tower body, wherein the grinding mechanism is used to grind the surface of granular pill particles to make them closer to a spherical structure, and the grinding mechanism includes a grinding roller, a spiral blade and a grinding mesh plate, wherein the grinding roller is rotatably arranged inside the grinding tower body, the spiral blade is arranged on the outer surface of the grinding roller, and the grinding mesh plate is arranged on the outside of the grinding roller, and the power output shaft of the driving mechanism is connected to the grinding roller for driving the grinding roller to rotate.

[0007] In addition, the pill particle grinding and forming device for pharmaceutical production and processing according to the present invention may also have the following additional technical features:

[0008] Furthermore, the grinding roller is a conical structure, the spiral pitch of the spiral blade gradually decreases from top to bottom, the cross-section between adjacent spiral blades is an arc-shaped structure, and the extension line of the arc-shaped structure is tangent to the inner wall of the grinding mesh plate, and a cutting edge is provided at the spiral edge of the spiral blade.

[0009] Furthermore, the outside of the grinding mesh is provided with a scraping cylinder, which is rotatably arranged on the outside of the grinding mesh. The inner wall of the scraping cylinder is provided with a scraping blade head, and the scraping blade head is connected to the outer wall of the grinding mesh.

[0010] Furthermore, the grinding tower body is provided with an air filtering mechanism, which is used to recover the material residue ground by the spiral blade and the scraping cylinder under negative pressure. The air filtering mechanism includes a negative pressure chamber, an exhaust fan and a dust removal bag, wherein the negative pressure chamber is opened inside the grinding tower body, the scraping blade head is a hollow structure, the negative pressure chamber is connected to the grinding mesh plate through the scraping blade head, the dust removal bag is arranged on the top of the negative pressure chamber, and the exhaust fan is connected to the air outlet end of the dust removal bag.

[0011] Furthermore, an abrasive collecting trough is provided at the bottom of the negative pressure chamber, and the abrasive collecting trough is located below the dust removal bag.

[0012] Furthermore, a reduction gear disc is provided on the outside of the scraping cylinder, a scraping cylinder drive motor is provided inside the grinding tower body, a gear head is provided on the power shaft of the scraping cylinder drive motor, and the gear head is engaged with the reduction gear disc gear.

[0013] Furthermore, the driving mechanism includes a gearbox arranged above the grinding roller, an input motor is provided on the input and output shafts of the gearbox, a spline shaft is provided on the output shaft of the gearbox, a spline sleeve is provided on the top of the grinding roller, and the spline shaft and the spline sleeve are adapted to fit each other.

[0014] Furthermore, a rotating shaft is provided at the bottom of the grinding roller, a hydraulic rod is provided at the bottom of the rotating shaft, and a power shaft of the hydraulic rod is rotatably connected to the rotating shaft.

[0015] Furthermore, a discharge port is provided at the bottom of the grinding roller, and a polishing mechanism is provided below the discharge port, and the polishing mechanism is used to thoroughly polish the surface of the ground material. The polishing mechanism includes a polishing box and a polishing roller, wherein the polishing box is provided below the grinding roller, and a material transmission pipe is provided between the polishing box and the discharge port. The polishing roller is rotatably provided inside the polishing box, and a polishing motor for driving the polishing roller to rotate is provided outside the polishing box. The polishing roller is a spiral brush structure, and a screen is provided below the polishing roller. A discharge port is provided at the end of the polishing box facing away from the material transmission pipe, a polishing material collecting trough is provided at the bottom of the polishing box, and a negative pressure fan is provided in the polishing material collecting trough, and an air intake is provided at the end of the material transmission pipe close to the discharge port.

[0016] Furthermore, a feeding mechanism is provided on the top of the grinding tower body, and the feeding mechanism is used to pelletize the material, wherein the feeding mechanism includes a pelletizing box, a feeding nozzle and a pelletizing blade, wherein the pelletizing box is arranged at the feed end of the grinding tower body, the feeding nozzle is arranged at the feed end of the pelletizing box, a transmission spiral shaft is provided below the pelletizing blade, the end of the transmission spiral shaft is connected to the feed end of the grinding tower body, the pelletizing blade is rotatably provided inside the pelletizing box, and a cutting plate is provided at the feed end of the pelletizing box, and the pelletizing blade is in contact with the cutting plate.

[0017] Beneficial effects: The present invention rotates the granular pill particles through the spiral blades. Since the pill particles are sandwiched between adjacent spiral blades, the edges of the adjacent spiral blades continuously grind and polish the surface of the pill particles, so that the surface of the pill particles gradually approaches a spherical structure. The ground pill particles are more fully ground and have a more uniform particle size distribution, and the subsequent drug use effect is better.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1Schematic diagram of a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

[0021] Figure 2 A schematic cross-sectional view of a grinding mechanism in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

[0022] Figure 3 for Figure 2 A magnified view of middle A;

[0023] Figure 4 A top cross-sectional view of a scraping cylinder in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

[0024] Figure 5 A front view of a scraping cylinder in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

[0025] Figure 6 It is a front cross-sectional view of a feeding mechanism in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

[0026] Figure 7 A cross-sectional view of a driving mechanism in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

[0027] Figure 8 A cross-sectional view of an air filter mechanism in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

[0028] Figure 9 for Figure 8 A magnified view of middle A;

[0029] Figure 10 The present invention is a schematic diagram showing the cooperation principle of a spline shaft and a spline sleeve in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention.

[0030] As shown in the figure: 1. Grinding tower; 2. Driving mechanism; 21. Gearbox; 22. Input motor; 23. Spline shaft; 24. Spline sleeve; 25. Rotating shaft; 26. Bearing; 27. Hydraulic rod; 3. Feeding mechanism; 31. Feeding nozzle; 32. Pelletizing box; 33. Cutting plate; 34. Pelletizing blade; 35. Transmission screw shaft; 4. Base; 5. Polishing mechanism; 51. Discharge port; 52. Air inlet; 53. Material transmission pipe; 54. Polishing box; 55. Polishing Polishing roller; 56, discharge port; 57, screen; 58, negative pressure fan; 59, polishing material collection tank; 6, grinding mechanism; 61, grinding roller; 62, feed port; 63, spiral blade; 631, cutting edge; 64, grinding screen; 65, scraping cylinder; 651, reduction gear disc; 652, scraping blade head; 66, scraping cylinder drive motor; 7, air filter mechanism; 71, exhaust fan; 72, dust bag; 73, negative pressure chamber; 74, abrasive material collection tank; 8, pill particles. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention and are not to be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0032] The following describes a pill particle grinding and forming device for pharmaceutical production and processing according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0033] like Figure 1-Figure 3 As shown, the pill particle grinding and forming device for pharmaceutical production and processing provided by an embodiment of the present invention includes a grinding tower body 1, and a grinding mechanism 6 and a driving mechanism 2 arranged on the grinding tower body 1, wherein a base 4 is provided at the bottom of the grinding tower body 1, and the grinding mechanism 6 is used to grind the surface of the granular pill particles to make them closer to a spherical structure. The grinding mechanism 6 includes a grinding roller 61, a spiral blade 63 and a grinding mesh plate 64, wherein the grinding roller 61 is rotatably arranged inside the grinding tower body 1, the spiral blade 63 is arranged on the outer surface of the grinding roller 61, and the grinding mesh plate 64 is arranged on the outside of the grinding roller 61. The power output shaft of the driving mechanism 2 is connected to the grinding roller 61 for driving the grinding roller 61 to rotate.

[0034] Specifically, when grinding the raw materials of the pills, the pill particles are first diced. It should be noted that the dicing length is the same as the diameter of the dicing cross section to prevent the pill particles from being too long to roll. The granular pill particles are then fed from the top of the grinding roller 61. The driving mechanism 2 then drives the grinding roller 61 to rotate, and the grinding roller 61 drives the spiral blade 63 to rotate together. The spiral blade 63 drives the pill particles to rotate continuously in the spiral blade 63. Since the pill particles are sandwiched between adjacent spiral blades 63, the cutting edges 631 of the edge portions of the adjacent spiral blades 63 continuously grind and polish the surface of the pill particles, so that the surface of the pill particles gradually approaches a spherical structure. The polished waste is continuously transmitted downward through the spiral blade 63 and is finally discharged from the bottom of the grinding roller 61.

[0035] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the grinding roller 61 is a conical structure, and the spiral pitch of the spiral blade 63 gradually decreases from top to bottom. The cross-section between adjacent spiral blades 63 is an arc-shaped structure, and the extension line of the arc-shaped structure is tangent to the inner wall of the grinding mesh plate 64. A cutting edge 631 is provided at the spiral edge of the spiral blade 63.

[0036] Specifically, in order to fully grind the surface of the pill particles and prevent the occurrence of concave surfaces caused by inadequate grinding, the spiral pitch of the spiral blade 63 is gradually reduced from top to bottom. As the spiral blade 63 continuously spirally transmits the pill particles downward, the spiral pitch gradually decreases, resulting in the diameter of the pill particles becoming smaller and smaller, until the pill particles reach the bottom end of the spiral blade 63 and are ground into a predetermined diameter and then discharged, making the diameter of the pill particles more uniform.

[0037] In addition, if Figure 3 As shown, the cross-section between adjacent spiral blades 63 is an arc-shaped structure, and the extension line of the arc-shaped structure is tangent to the inner wall of the grinding mesh 64. A cutting edge 631 is provided at the spiral edge of the spiral blade 63, so that the rolling gap of the pill particles 8 is reduced during the rolling process. During the gradual grinding process of the surface of the pill particles 8, a stable spherical shape can be formed between the spiral blade 63 and the grinding mesh 64, thereby preventing the pill particles from being locally subjected to force, resulting in insufficient grinding or excessive grinding.

[0038] In one embodiment of the present invention, Figure 2 、 Figure 4 and Figure 5 As shown, the outside of the grinding mesh plate 64 is provided with a scraping cylinder 65, which is rotatably arranged on the outside of the grinding mesh plate 64. The inner wall of the scraping cylinder 65 is provided with a scraping blade 652, which contacts the outer wall of the grinding mesh plate 64.

[0039] Specifically, when the pill particles roll between the spiral blade 63 and the grinding mesh 64, the grinding mesh 64 supports the side of the pill particles, and the uneven surface of the grinding mesh 64 provides a large friction force on the pill particles. The pill particles will continue to roll along the grinding mesh 64, and the angular parts of the pill particles will pass through the mesh of the grinding mesh 64 and will be scraped by the rotating scraping head 652 on the scraping cylinder 65. Figure 3 As shown, at this time, the spiral blade 63 can grind the upper and lower sides of the pill particles 8, while the scraping blade head 652 grinds the side surfaces of the pill particles 8, thereby accelerating the formation of the grinding particles of the pill particles 8 and reducing the blockage during the rolling process of the pill particles 8.

[0040] In one embodiment of the present invention, Figure 8 As shown, the grinding tower body 1 is provided with an air filter mechanism 7, which is used to recover the material residue ground by the spiral blade 63 and the scraping cylinder 65 under negative pressure. The air filter mechanism 7 includes a negative pressure chamber 73, an exhaust fan 71 and a dust bag 72, wherein the negative pressure chamber 73 is opened inside the grinding tower body 1, the scraping blade head 652 is a hollow structure, the negative pressure chamber 73 is connected to the grinding mesh plate 64 through the scraping blade head 652, the dust bag 72 is arranged at the top of the negative pressure chamber 73, the exhaust fan 71 is connected to the air outlet end of the dust bag 72, and an abrasive collecting trough 74 is provided at the bottom of the negative pressure chamber 73, and the abrasive collecting trough 74 is located below the dust bag 72.

[0041] Specifically, during the grinding process of the pill particles in the grinding mechanism 6, the waste chips generated will pass through the grinding mesh plate 64 and be crushed by the scraping head 652, and finally discharged into the negative pressure chamber 73 through the scraping head 652. During this process, in order to accelerate the discharge speed of the waste chips, an exhaust fan 71 is set at the top of the negative pressure chamber 73, so that negative pressure is generated in the negative pressure chamber 73 and the inner side of the grinding mesh plate 64, thereby accelerating the transfer of waste chips, preventing waste chips from flying out from the top of the grinding roller 61, and reducing the generation of dust. In addition, after the waste chips enter the negative pressure chamber 73, they are filtered by the dust bag 72, and the gas is discharged from the exhaust fan 71 again, and the waste chips fall into the grinding material collection trough 74 below the dust bag 72 for temporary storage.

[0042] In one embodiment of the present invention, Figure 2 As shown, a reduction gear disc 651 is provided on the outside of the scraping cylinder 65, and a scraping cylinder driving motor 66 is provided inside the grinding tower body 1. A gear head is provided on the power shaft of the scraping cylinder driving motor 66, and the gear head is engaged with the reduction gear disc 651.

[0043] Specifically, in order to drive the scraping cylinder 65 to rotate, the scraping cylinder driving motor 66 is energized to drive the gear head to rotate, and the gear head drives the reduction gear plate 651 to rotate, thereby driving the scraping cylinder 65 to rotate.

[0044] In one embodiment of the present invention, Figure 7 As shown, the drive mechanism 2 includes a gearbox 21 disposed above the grinding roller 61. An input motor 22 is provided on the input and output shafts of the gearbox 21. A splined shaft 23 is provided on the output shaft of the gearbox 21. A splined sleeve 24 is provided on the top of the grinding roller 61. The splined shaft 23 and the splined sleeve 24 are adapted to fit together. A rotating shaft 25 is provided at the bottom of the grinding roller 61. A hydraulic rod 27 is provided at the bottom of the rotating shaft 25. The power shaft of the hydraulic rod 27 is rotatably connected to the rotating shaft 25 via a bearing 26.

[0045] Specifically, in order to drive the grinding roller 61 to rotate, the gearbox 21 is driven by the input motor 22, and the gearbox 21 transmits power to the spline shaft 23 and the spline sleeve 24, thereby driving the grinding roller 61 to rotate. When the grinding roller 61 needs to be lifted for surface maintenance in the later stage, the rotating shaft 25 is driven to rise by the hydraulic rod 27. After the grinding roller 61 rises, the gap between it and the grinding mesh plate 64 increases, which facilitates the maintenance of the surface of the grinding roller 61 and can also be used to maintain the surface of the grinding mesh plate 64.

[0046] In one embodiment of the present invention, Figure 7 As shown, a discharge port 51 is provided at the bottom of the grinding roller 61, and a polishing mechanism 5 is provided below the discharge port 51. The polishing mechanism 5 is used to thoroughly polish the surface of the ground material. The polishing mechanism 5 includes a polishing box 54 and a polishing roller 55, wherein the polishing box 54 is provided below the grinding roller 61, and a material transfer pipe 53 is provided between the polishing box 54 and the discharge port 51. The polishing roller 55 is rotatably provided inside the polishing box 54, and a polishing motor for driving the polishing roller 55 to rotate is provided outside the polishing box 54.

[0047] The polishing roller 55 is a spiral brush structure, and a screen 57 is provided below the polishing roller 55. A discharge port 56 is provided at the end of the polishing box 54 facing away from the material transmission pipe 53. A polishing material collecting trough 59 is provided at the bottom of the polishing box 54. The polishing material collecting trough 59 is provided with a negative pressure fan 58. An air intake port 52 is provided at the end of the material transmission pipe 53 close to the discharge port 51.

[0048] Specifically, the ground pill particles enter the material transmission pipe 53 through the discharge port 51. Due to the action of the negative pressure fan 58, the pill particles move toward the inside of the polishing box 54 in the material transmission pipe 53, and the pill particles are sucked into the polishing box 54. When the pill particles enter the polishing box 54, the spiral polishing roller 55 finely grinds and polishes the surface of the pill particles. The polishing material falling from the surface of the pill particles passes through the screen 57 and falls into the polishing material collecting trough 59. After being ground by the polishing roller 55, the pill particles are spirally transmitted to the right and are finally discharged from the discharge port 56 at the right end of the polishing box 54.

[0049] In one embodiment of the present invention, Figure 1 and Figure 6 As shown, a feeding mechanism 3 is provided on the top of the grinding tower body 1, and the feeding mechanism 3 is used to pelletize the material, wherein the feeding mechanism 3 includes a pelletizing box 32, a feeding nozzle 31 and a pelletizing blade 34, wherein the pelletizing box 32 is arranged at the feed end of the grinding tower body 1, the feeding nozzle 31 is arranged at the feed end of the pelletizing box 32, and a transmission screw shaft 35 is provided below the pelletizing blade 34, and the end of the transmission screw shaft 35 is connected to the feed end of the grinding tower body 1, and the pelletizing blade 34 is rotatably arranged inside the pelletizing box 32, and a cutting plate 33 is provided at the feed end of the pelletizing box 32, and the pelletizing blade 34 is in contact with the cutting plate 33.

[0050] Specifically, in order to pelletize the strip-shaped medicine raw materials so as to facilitate their entry into the grinding tower body 1 for grinding, the strip-shaped medicine is continuously fed through the feeding nozzle 31, and the strip-shaped medicine is pelletized by the rotating pelletizing blade 34. The granular pill particles fall into the pelletizing box 32 and are transmitted to the feed port 62 on the grinding tower body 1 through the rotating transmission screw shaft 35.

[0051] In order to clearly illustrate the above embodiments, refer to Figures 1-10 The specific working principle of the pill particle grinding and forming device for pharmaceutical production and processing of the present invention is as follows:

[0052] When grinding the raw material for pills, the pill strips are first pelletized. The pill strips are continuously fed through the feed nozzle 31 and chopped by the rotating pelletizer blades 34. The granular pills fall into the pelletizer box 32 and are then transported by the rotating conveyor screw 35 to the feed port 62 on the grinding tower 1.

[0053] Next, the granular pills are fed from the top of the grinding roller 61. The input motor 22 drives the gearbox 21, which transmits power to the spline shaft 23 and the spline sleeve 24, thereby driving the grinding roller 61 to rotate. The grinding roller 61 drives the spiral blade 63 to rotate together, and the spiral blade 63 drives the pills to rotate continuously.

[0054] As the spiral blades 63 continuously spirally transport the pill particles downward, the pill particles are sandwiched between adjacent spiral blades 63. The cutting edges 631 of the edge portions of the adjacent spiral blades 63 continuously grind and polish the surface of the pill particles, making the surface of the pill particles approach a spherical structure. The spiral pitch gradually decreases from top to bottom, and the diameter of the pill particles becomes smaller and smaller. When they are ground to a predetermined diameter at the bottom of the spiral blades 63, they are discharged, making the diameter of the pill particles uniform.

[0055] As the pills roll between the spiral blades 63 and the grinding mesh 64, power is supplied to the scraper drive motor 66, which in turn rotates the gear head. This gear head then drives the reduction gear plate 651, which in turn drives the scraper cylinder 65. The sharp corners of the pills, after passing through the mesh of the grinding mesh 64, are scraped by the rotating scraper head 652 on the scraper cylinder 65. At this point, the spiral blades 63 grind the top and bottom of the pills, while the scraper head 652 grinds the sides, accelerating the grinding and forming of the pills.

[0056] Subsequently, the ground pill particles enter the material conveying pipe 53 through the discharge port 51. Due to the action of the negative pressure fan 58, the pill particles move in the material conveying pipe 53 toward the interior of the polishing box 54 and are sucked into the polishing box 54. When the pill particles enter the polishing box 54, the spiral polishing roller 55 finely grinds and polishes their surfaces. The polishing material falling from the surface of the pill particles passes through the screen 57 and falls into the polishing material collection tank 59. After being ground by the polishing roller 55, the pill particles are spirally conveyed to the right and finally discharged from the discharge port 56 at the right end of the polishing box 54.

[0057] In summary, the pill particle grinding and forming device for pharmaceutical production and processing according to the embodiment of the present invention can achieve the following effects:

[0058] 1. By passing the granular pill particles through the spiral blades 63 and rotating them together, the pill particles are sandwiched between adjacent spiral blades 63, and the edges of the adjacent spiral blades 63 continuously grind and polish the surface of the pill particles, so that the surface of the pill particles gradually approaches a spherical structure, and the diameter of the ground pill particles is more uniform.

[0059] 2. The pitch of the spiral blades 63 gradually decreases from top to bottom. As the pills are transported downward, their diameter gradually decreases until they are ground to a predetermined diameter at the bottom of the spiral blades 63, resulting in a more uniform particle diameter. The cross-sections between adjacent spiral blades 63 are arc-shaped, with their extensions tangent to the inner wall of the grinding screen 64. The edges of the spiral blades 63 have cutting edges 631, which reduce rolling clearance between the pills and help them form a stable spherical shape. This prevents localized improper grinding and fully grinds the surface of the pills, preventing the formation of concave surfaces.

[0060] 3. As the pills roll between the spiral blades 63 and the grinding mesh 64, the grinding mesh 64 provides support and significant friction, keeping them rolling. The sharp corners of the pills pass through the mesh and are scraped by the scraping heads 652 on the scraping cylinder 65. At this point, the spiral blades 63 grind the top and bottom of the pills, while the scraping heads 652 grind the sides, ensuring stable rolling, accelerating pill grinding and reducing clogging.

[0061] 4. When the pill particles are ground in the grinding mechanism 6, the waste chips generated will pass through the grinding mesh 64 and be crushed by the scraping head 652, and finally discharged into the negative pressure chamber 73. To accelerate the discharge of waste chips, an exhaust fan 71 is installed at the top of the negative pressure chamber 73. It creates a negative pressure between it and the inner side of the grinding mesh 64, accelerating the transfer of waste chips and preventing waste chips from flying out and generating dust.

[0062] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A pill particle grinding and forming device for pharmaceutical production and processing, characterized in that: It comprises a grinding tower body (1), and a grinding mechanism (6) and a driving mechanism (2) arranged on the grinding tower body (1), wherein: The grinding mechanism (6) is used to grind the surface of granular pill particles to make them closer to a spherical structure. The grinding mechanism (6) comprises a grinding roller (61), a spiral blade (63) and a grinding screen (64), wherein the grinding roller (61) is rotatably arranged inside the grinding tower (1), the spiral blade (63) is arranged on the outer surface of the grinding roller (61), and the grinding screen (64) is arranged on the outer side of the grinding roller (61); The power output shaft of the driving mechanism (2) is connected to the grinding roller (61) and is used to drive the grinding roller (61) to rotate; The grinding roller (61) is a conical structure, the spiral pitch of the spiral blades (63) gradually decreases from top to bottom, the cross-section between adjacent spiral blades (63) is an arc-shaped structure, and the extension line of the arc-shaped structure is tangent to the inner wall of the grinding screen (64), and the spiral edge of the spiral blade (63) is provided with a cutting edge (631); The grinding mesh plate (64) is provided with a scraping cylinder (65) on its exterior. The scraping cylinder (65) is rotatably arranged on the exterior of the grinding mesh plate (64). A scraping blade (652) is provided on the inner wall of the scraping cylinder (65). The scraping blade (652) is connected to the outer wall of the grinding mesh plate (64).

2. The pill particle grinding and forming device for pharmaceutical production and processing according to claim 1, characterized in that: The grinding tower body (1) is provided with an air filter mechanism (7), and the air filter mechanism (7) is used to recover the material residue ground by the spiral blade (63) and the scraping cylinder (65) under negative pressure. The air filter mechanism (7) includes a negative pressure chamber (73), an exhaust fan (71) and a dust removal bag (72), wherein the negative pressure chamber (73) is opened inside the grinding tower body (1), the scraping blade head (652) is a hollow structure, the negative pressure chamber (73) is connected to the grinding mesh plate (64) through the scraping blade head (652), the dust removal bag (72) is arranged at the top of the negative pressure chamber (73), and the exhaust fan (71) is connected to the air outlet end of the dust removal bag (72).

3. The pill particle grinding and forming device for pharmaceutical production and processing according to claim 2, characterized in that: An abrasive collecting trough (74) is provided at the bottom of the negative pressure chamber (73), and the abrasive collecting trough (74) is located below the dust removal bag (72).

4. The pill particle grinding and forming device for pharmaceutical production and processing according to claim 1, characterized in that: A reduction gear disc (651) is provided on the outside of the scraping cylinder (65), a scraping cylinder drive motor (66) is provided inside the grinding tower body (1), and a gear head is provided on the power shaft of the scraping cylinder drive motor (66), and the gear head is meshed with the reduction gear disc (651).

5. The pill particle grinding and forming device for pharmaceutical production and processing according to claim 1, characterized in that: The driving mechanism (2) comprises a gearbox (21) arranged above the grinding roller (61), an input motor (22) being arranged on the input and output shafts of the gearbox (21), a spline shaft (23) being arranged on the output shaft of the gearbox (21), a spline sleeve (24) being arranged on the top of the grinding roller (61), and the spline shaft (23) and the spline sleeve (24) being adapted to be plugged into each other.

6. The pill particle grinding and forming device for pharmaceutical production and processing according to claim 5, characterized in that: A rotating shaft (25) is provided at the bottom of the grinding roller (61), a hydraulic rod (27) is provided at the bottom of the rotating shaft (25), and a power shaft of the hydraulic rod (27) is rotatably connected to the rotating shaft (25).

7. The pill particle grinding and forming device for pharmaceutical production and processing according to claim 1, characterized in that: A discharge port (51) is provided at the bottom of the grinding roller (61), and a polishing mechanism (5) is provided below the discharge port (51). The polishing mechanism (5) is used to thoroughly polish the surface of the ground material. The polishing mechanism (5) includes a polishing box (54) and a polishing roller (55), wherein the polishing box (54) is provided below the grinding roller (61), a material transmission pipe (53) is provided between the polishing box (54) and the discharge port (51), the polishing roller (55) is rotatably provided inside the polishing box (54), and a polishing motor for driving the polishing roller (55) to rotate is provided outside the polishing box (54); The polishing roller (55) is a spiral brush structure, a screen (57) is provided below the polishing roller (55), a discharge port (56) is provided at one end of the polishing box (54) away from the material transmission pipe (53), a polishing material collecting trough (59) is provided at the bottom of the polishing box (54), a negative pressure fan (58) is provided in the polishing material collecting trough (59), and an air intake port (52) is provided at one end of the material transmission pipe (53) close to the discharge port (51).

8. The pill particle grinding and forming device for pharmaceutical production and processing according to claim 1, characterized in that: A feeding mechanism (3) is provided on the top of the grinding tower body (1), and the feeding mechanism (3) is used for pelletizing the material, wherein the feeding mechanism (3) comprises a pelletizing box (32), a feeding nozzle (31) and a pelletizing blade (34), wherein the pelletizing box (32) is provided at the feed end of the grinding tower body (1), the feeding nozzle (31) is provided at the feed end of the pelletizing box (32), and a transmission screw shaft (35) is provided below the pelletizing blade (34), and the end of the transmission screw shaft (35) is connected to the feed end of the grinding tower body (1); The pelletizing blade (34) is rotatably arranged inside the pelletizing box (32); a cutting plate (33) is provided at the feed end of the pelletizing box (32); and the pelletizing blade (34) and the cutting plate (33) are in contact with each other.

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