CN118744041A - A pill particle grinding and forming device for pharmaceutical production and processing - Google Patents

Abstract

The invention discloses a pill particle grinding and forming device for pharmaceutical production and processing, which relates to the field of pharmaceutical production and processing, and comprises a grinding tower body, and a grinding mechanism and a driving mechanism arranged on the grinding tower body. The grinding mechanism is used for performing surface grinding on 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 plate. 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 plate is arranged on the outer side 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 invention rotates the granular pill particles together through the spiral blades. Since the pill particles are sandwiched between adjacent spiral blades, the edges of the edge parts of the adjacent spiral blades continuously grind and polish the pill particle surfaces, so that the pill particle surfaces gradually approach a spherical structure, and the diameters of the pill particles are more uniform.

Description

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

Technical Field

The invention relates to the technical field of pharmaceutical production and processing, and in particular to a pill particle grinding and forming device used for pharmaceutical production and processing.

Background Art

In the field of modern medicine, the dosage form and preparation process of drugs are constantly innovating and developing to improve the efficacy, stability and patient compliance of drugs. Grinding drugs into spherical particles is a technology of great significance. As a treasure of traditional Chinese medicine, Chinese medicine has a variety of dosage forms, among which Chinese medicine pills are widely used in medical practice. Spherical granule pills are easy to take and carry. The pills are relatively small and easy to swallow, especially for children or patients with dysphagia. Moreover, the pills are easy to carry, which is convenient for patients to take medicine on time when going out or traveling. Secondly, it can prolong the efficacy of the drug. Some excipients are often used in the process of pill making, which can make the drug release slowly, thereby prolonging the efficacy, reducing the number of medications, and improving patient compliance. Moreover, it is easy to store. Pills generally have good stability, can be stored for a long time under certain conditions, and are not easy to deteriorate. It is easier to achieve uniform mixing during the preparation process, ensure the consistent content of active ingredients in each dose of medicine, and improve the quality stability and controllability of the drug. At the same time, they are not easy to break, aggregate or stratify during storage and transportation, which is conducive to maintaining the performance of the drug. From the perspective of drug development, the preparation technology of spherical particles can flexibly adjust the release rate of drugs. By selecting appropriate materials and process parameters, rapid release, slow release or controlled release can be achieved to meet the needs of treating different diseases. For example, for chronic disease treatment drugs that need to maintain efficacy for a long time, controlled-release spherical particles can be designed.

However, in some specific cases, the Chinese medicine pills need to be ground. At present, various mechanical equipment, such as electric grinders, ball mills, etc., 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 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

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

To this end, the purpose 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.

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 comprises 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, the grinding mesh plate is arranged on the outer side 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.

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:

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.

Furthermore, the grinding mesh plate is externally sleeved with a scraping cylinder, the scraping cylinder is rotatably arranged on the outer side of the grinding mesh plate, 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 plate.

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, and 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.

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.

Furthermore, a reduction gear disc is arranged outside the scraper and sweeper cylinder, a scraper and sweeper cylinder driving motor is arranged inside the grinding tower body, a gear head is arranged on the power shaft of the scraper and sweeper cylinder driving motor, and the gear head is meshed with the reduction gear disc gear.

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

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.

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, and 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 one end of the polishing box 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 one end of the material transmission pipe close to the discharge port.

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

Beneficial effect: 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 edge parts 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.

Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic structural diagram of a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

FIG2 is a schematic cross-sectional view of a grinding mechanism in a pill particle grinding and forming device for pharmaceutical production and processing according to an embodiment of the present invention;

Fig. 3 is an enlarged view of A in Fig. 2;

FIG4 is a top cross-sectional view of a scraping and sweeping cylinder in a pill particle grinding and forming device for pharmaceutical production and processing according to one embodiment of the present invention;

FIG5 is a front view of a scraping and sweeping cylinder in a pill particle grinding and forming device for pharmaceutical production and processing according to an embodiment of the present invention;

FIG6 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 an embodiment of the present invention;

FIG7 is a cross-sectional view of a driving mechanism in a pill particle grinding and forming device for pharmaceutical production and processing according to an embodiment of the present invention;

FIG8 is a cross-sectional view of an air filter mechanism in a pill particle grinding and forming device for pharmaceutical production and processing according to an embodiment of the present invention;

FIG9 is an enlarged view of A in FIG8 ;

FIG. 10 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 an embodiment of the present invention.

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 filtering mechanism; 71, exhaust fan; 72, dust removal bag; 73, negative pressure chamber; 74, grinding material collection tank; 8, pill particles.

DETAILED DESCRIPTION

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with 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 limitations of the present invention. On the contrary, embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

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.

As shown in Figures 1 to 3, the pill particle grinding and forming device for pharmaceutical production and processing provided by the 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 arranged at the bottom of the grinding tower body 1, and the grinding mechanism 6 is used to perform surface grinding on granular pill particles to make them closer to a spherical structure, and 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 outer side of the grinding roller 61, and the power output shaft of the driving mechanism 2 is connected to the grinding roller 61 for driving the grinding roller 61 to rotate.

Specifically, when grinding the raw materials of pills, the pill particles are first pelletized. It should be noted that the pelletizing length is the same as the diameter of the pelletizing cross section to prevent the pill particles from being too long to roll. Then, the granular pill particles are fed from the top of the grinding roller 61, and then the driving mechanism 2 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 continuously rotate in the spiral blade 63. Since the pill particles are sandwiched between adjacent spiral blades 63, the cutting edges 631 of the edge parts 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 polished waste is continuously transmitted downward through the spiral blade 63 and is finally discharged from the bottom of the grinding roller 61.

In one embodiment of the present invention, as shown in Figures 2 and 3, the grinding roller 61 is a conical structure, 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, and a cutting edge 631 is provided at the spiral edge of the spiral blade 63.

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. During the process of the spiral blade 63 continuously spirally transmitting the pill particles downward, the spiral pitch is gradually reduced, thereby causing the diameter of the pill particles to become smaller and smaller, until the pill particles reach the bottom of the spiral blade 63 and are ground into a predetermined diameter and then discharged, making the diameter of the pill particles more uniform.

In addition, as shown in FIG3 , 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, so that the rolling gap of the pill particles 8 can be reduced during the rolling process. During the gradual grinding process of the surface of the pill particles 8, a stable sphere can be formed between the spiral blade 63 and the grinding mesh plate 64, thereby preventing the pill particles from being locally subjected to force, resulting in insufficient grinding or excessive grinding.

In one embodiment of the present invention, as shown in Figures 2, 4 and 5, a scraping cylinder 65 is provided on the outside of the grinding mesh plate 64, and the scraping cylinder 65 is rotatably arranged on the outside of the grinding mesh plate 64. A scraping blade head 652 is provided on the inner wall of the scraping cylinder 65, and the scraping blade head 652 is in contact with the outer wall of the grinding mesh plate 64.

Specifically, when the pill particles roll between the spiral blade 63 and the grinding mesh plate 64, the grinding mesh plate 64 supports the side of the pill particles, and the uneven surface of the grinding mesh plate 64 provides greater friction to the pill particles. The pill particles will continue to roll along the grinding mesh plate 64, and the angular parts of the pill particles will be scraped by the rotating scraping head 652 on the scraping cylinder 65 after passing through the mesh holes of the grinding mesh plate 64. As shown in Figure 3, at this time, the spiral blade 63 can grind the upper and lower sides of the pill particles 8, and the scraping head 652 grinds the sides of the pill particles 8, thereby accelerating the forming of the abrasive particles of the pill particles 8 and reducing the blockage during the rolling of the pill particles 8.

In one embodiment of the present invention, as shown in Figure 8, 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 arranged at the bottom of the negative pressure chamber 73, and the abrasive collecting trough 74 is located below the dust bag 72.

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 arranged on 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 the waste chips, preventing the 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 generated 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.

In one embodiment of the present invention, as shown in Figure 2, a reduction gear disk 651 is provided on the outside of the scraper cylinder 65, a scraper cylinder drive motor 66 is provided inside the grinding tower body 1, and a gear head is provided on the power shaft of the scraper cylinder drive motor 66, and the gear head is meshed with the reduction gear disk 651.

Specifically, in order to drive the scraper cylinder 65 to rotate, the scraper 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 scraper cylinder 65 to rotate.

In one embodiment of the present invention, as shown in FIG7 , the driving mechanism 2 includes a gearbox 21 disposed above the grinding roller 61, an input motor 22 is disposed on the input and output shafts of the gearbox 21, a spline shaft 23 is disposed on the output shaft of the gearbox 21, a spline sleeve 24 is disposed on the top of the grinding roller 61, and the spline shaft 23 and the spline sleeve 24 are adapted to be plugged in each other. A rotating shaft 25 is disposed at the bottom of the grinding roller 61, a hydraulic rod 27 is disposed 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 by a bearing 26.

Specifically, in order to drive the grinding roller 61 to rotate, the input motor 22 drives the gearbox 21 to work, 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 at a later stage, the rotating shaft 25 is driven up by the hydraulic rod 27. After the grinding roller 61 rises, the gap between it and the grinding mesh plate 64 is increased, 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.

In one embodiment of the present invention, as shown in FIG7 , 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.

The polishing roller 55 is a spiral brush structure, and a screen 57 is arranged below the polishing roller 55. A discharge port 56 is arranged at the end of the polishing box 54 facing away from the material transmission pipe 53. A polishing material collecting trough 59 is arranged 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 arranged at the end of the material transmission pipe 53 close to the discharge port 51.

Specifically, the ground pill particles enter the material transfer 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 transfer 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 tank 59. After being ground by the polishing roller 55, the pill particles are spirally transferred to the right and are finally discharged from the discharge port 56 at the right end of the polishing box 54.

In one embodiment of the present invention, as shown in Figures 1 and 6, 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 feeding end of the grinding tower body 1, the feeding nozzle 31 is arranged at the feeding end of the pelletizing box 32, a transmission screw shaft 35 is arranged below the pelletizing blade 34, and the end of the transmission screw shaft 35 is connected to the feeding end of the grinding tower body 1, the pelletizing blade 34 is rotatably arranged inside the pelletizing box 32, and a cutting plate 33 is arranged at the feeding end of the pelletizing box 32, and the pelletizing blade 34 and the cutting plate 33 are in contact with each other.

Specifically, in order to pelletize the strip-shaped medicine raw materials so as to facilitate entering the grinding tower body 1 for grinding, the strip-shaped medicine is continuously fed in 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.

In order to clearly illustrate the above embodiment, referring to FIGS. 1 to 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:

When the raw materials for the pills are ground, the strip medicine is first granulated. The strip medicine is continuously fed in through the feeding nozzle 31, and the rotating granulating blade 34 granulates it, and the granular pill particles fall into the granulating box 32, and then are transmitted to the feeding port 62 on the grinding tower body 1 through the rotating transmission screw shaft 35.

Next, the granular pill particles are fed from the top of the grinding roller 61. The gearbox 21 is driven by the input motor 22 to work, and the gearbox 21 transmits power to the spline shaft 23 and the spline sleeve 24, thereby driving the grinding roller 61 to rotate, and the grinding roller 61 drives the spiral blade 63 to rotate together, and the spiral blade 63 drives the pill particles to rotate continuously.

In the process of the spiral blade 63 continuously spirally transporting the pill particles downward, since the pill particles are sandwiched between adjacent spiral blades 63, the cutting edges 631 of the edge portions of 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, and the spiral spacing gradually decreases from top to bottom, and the diameter of the pill particles becomes smaller and smaller, and is ground to a predetermined diameter at the bottom of the spiral blade 63 and then discharged, so that the diameter of the pill particles is uniform.

When the pill particles roll between the spiral blade 63 and the grinding mesh plate 64, the scraper 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 scraper cylinder 65 to rotate. After the angular parts of the pill particles pass through the mesh of the grinding mesh plate 64, they will be scraped by the rotating scraper head 652 on the scraper cylinder 65. At this time, the spiral blade 63 grinds the upper and lower sides of the pill particles, and the scraper head 652 grinds the side of the pill particles, accelerating the grinding and forming of the pill particles.

Subsequently, 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 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 collection tank 59. After being ground by the polishing roller 55, the pill particles are spirally transmitted to the right and finally discharged from the discharge port 56 at the right end of the polishing box 54.

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:

1. The granular pill particles are rotated together through the spiral blades 63. Since the pill particles are sandwiched between adjacent spiral blades 63, 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.

2. The spiral pitch of the spiral blade 63 decreases gradually from top to bottom. In the process of spirally transmitting pill particles downward, the diameter of the pill particles gradually decreases, and the pill particles are ground into a predetermined diameter at the bottom of the spiral blade 63 and discharged, making the particle diameter more uniform. The cross section between adjacent spiral blades 63 is an arc shape, and its extension line is tangent to the inner wall of the grinding mesh plate 64. The edge of the spiral blade 63 has a cutting edge 631, which reduces the rolling gap of the pills, helps them form a stable spherical shape, avoids improper local grinding, fully grinds the surface of the pill particles, and prevents the formation of concave surfaces.

3. When the pill particles roll between the spiral blade 63 and the grinding mesh plate 64, the grinding mesh plate 64 provides support and greater friction to keep them rolling. The edges and corners of the pills pass through the mesh and are scraped by the scraping blade head 652 on the scraping cylinder 65. At this time, the spiral blade 63 grinds the upper and lower sides of the pill particles, and the scraping blade head 652 grinds the side, so that the pills roll stably, accelerate the pill grinding and forming, and reduce blockage.

4. The waste generated when the pill particles are ground by the grinding mechanism 6 will pass through the grinding mesh plate 64 and be crushed by the scraping blade 652, and finally discharged into the negative pressure chamber 73. In order to accelerate the discharge of waste, an exhaust fan 71 is arranged on the top of the negative pressure chamber 73 to generate negative pressure between it and the inner side of the grinding mesh plate 64, accelerate the transfer of waste, and prevent waste from flying out and dust generation.

Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of 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 (10)

1. The pill particle grinding and forming device for medicine production and processing is characterized by comprising a grinding tower body (1), a grinding mechanism (6) and a driving mechanism (2) which are arranged on the grinding tower body (1), wherein,

The grinding mechanism (6) is used for grinding the surface of the granular pill particles to enable the granular pill particles to be more approximate to a spherical structure, the grinding mechanism (6) comprises a grinding roller (61), a spiral blade (63) and a grinding screen plate (64), wherein the grinding roller (61) is rotatably arranged in the grinding tower body (1), the spiral blade (63) is arranged on the outer surface of the grinding roller (61), and the grinding screen plate (64) is arranged on the outer side of the grinding roller (61);

The power output shaft of the driving mechanism (2) is connected with the grinding roller (61) and is used for driving the grinding roller (61) to rotate.

2. The pill particle grinding and forming device for medicine production and processing according to claim 1, wherein the grinding roller (61) is of a conical structure, the spiral interval between the spiral blades (63) is gradually reduced from top to bottom, the cross section between the adjacent spiral blades (63) is of a circular arc structure, an extension line of the circular arc structure is tangent to the inner wall of the grinding screen plate (64), and a cutting edge (631) is arranged at the spiral edge of the spiral blade (63).

3. The pill particle grinding and forming device for medicine production and processing according to claim 1, wherein a scraping cylinder (65) is sleeved outside the grinding screen (64), the scraping cylinder (65) is rotatably arranged outside the grinding screen (64), a scraping cutter head (652) is arranged on the inner wall of the scraping cylinder (65), and the scraping cutter head (652) is connected with the outer wall of the grinding screen (64).

4. The pill granule grinding and forming device for medicine production and processing according to claim 3, wherein the grinding tower body (1) is provided with a gas filtering mechanism (7), the gas filtering mechanism (7) is used for carrying out negative pressure recovery on material residues ground by the spiral blade (63) and the scraping and sweeping cylinder (65), the gas filtering mechanism (7) comprises a negative pressure chamber (73), an exhaust fan (71) and a dust removing cloth bag (72), wherein the negative pressure chamber (73) is arranged inside the grinding tower body (1), the scraping and sweeping cutter head (652) is of a hollow structure, the negative pressure chamber (73) is communicated with the grinding screen plate (64) through the scraping and sweeping cutter head (652), the dust removing cloth bag (72) is arranged at the top of the negative pressure chamber (73), and the exhaust fan (71) is connected with the air outlet end of the dust removing cloth bag (72).

5. The pill particle grinding and forming device for medical production and processing according to claim 4, wherein an abrasive collecting tank (74) is arranged at the bottom of the negative pressure chamber (73), and the abrasive collecting tank (74) is positioned below the dust removing cloth bag (72).

6. A pill particle grinding and forming device for medical production and processing according to claim 3, wherein a speed reducing fluted disc (651) is arranged outside the scraping and sweeping barrel (65), a scraping and sweeping barrel driving motor (66) is arranged inside the grinding tower body (1), a gear head is arranged on a power shaft of the scraping and sweeping barrel driving motor (66), and the gear head is meshed with the speed reducing fluted disc (651) in a gear mode.

7. The pill particle grinding and forming device for medical production and processing according to claim 1, wherein the driving mechanism (2) comprises a gearbox (21) arranged above the grinding roller (61), an input motor (22) is arranged on an input shaft and an output shaft of the gearbox (21), a spline shaft (23) is arranged on an output shaft of the gearbox (21), a spline sleeve (24) is arranged at the top of the grinding roller (61), and the spline shaft (23) and the spline sleeve (24) are mutually matched and inserted.

8. The pill particle grinding and forming device for medical production and processing according to claim 7, wherein a rotating shaft (25) is arranged at the bottom of the grinding roller (61), a hydraulic rod (27) is arranged at the bottom of the rotating shaft (25), and a power shaft of the hydraulic rod (27) is rotatably connected with the rotating shaft (25).

9. The pill particle grinding and forming device for medicine production and processing according to claim 1, wherein a discharge hole (51) is formed in the bottom of the grinding roller (61), a polishing mechanism (5) is arranged below the discharge hole (51), the polishing mechanism (5) is used for thoroughly polishing the surface of a ground material, the polishing mechanism (5) comprises a polishing box body (54) and a polishing roller (55), the polishing box body (54) is arranged below the grinding roller (61), a material conveying pipe (53) is arranged between the polishing box body (54) and the discharge hole (51), the polishing roller (55) is rotatably arranged inside the polishing box body (54), and a polishing motor used for driving the polishing roller (55) to rotate is arranged outside the polishing box body (54);

The polishing roller (55) is of a spiral brush structure, a screen (57) is arranged below the polishing roller (55), a discharge opening (56) is formed in one end, deviating from a material conveying pipe (53), of the polishing box body (54), a polishing material collecting groove (59) is formed in the bottom of the polishing box body (54), a negative pressure fan (58) is arranged in the polishing material collecting groove (59), and an air suction opening (52) is formed in one end, close to the discharge opening (51), of the material conveying pipe (53).

10. The pill particle grinding and forming device for medical production and processing according to claim 1, wherein a feeding mechanism (3) is arranged at the top of the grinding tower body (1), the feeding mechanism (3) is used for performing particle cutting treatment on materials, the feeding mechanism (3) comprises a particle cutting box (32), a feeding nozzle (31) and a particle cutting blade (34), the particle cutting box (32) is arranged at the feeding end of the grinding tower body (1), the feeding nozzle (31) is arranged at the feeding end of the particle cutting box (32), a transmission screw shaft (35) is arranged below the particle cutting blade (34), and the tail end of the transmission screw shaft (35) is connected with the feeding end of the grinding tower body (1);

The utility model provides a granulator, including cut grain case (32), cut grain blade (34) rotationally set up inside cut grain case (32), the feed end of cut grain case (32) is provided with cutting board (33), cut grain blade (34) with cutting board (33) contact each other.