A grinding device for pharmaceuticals

Abstract

The utility model relates to biological pharmacy equipment technical field, concretely is a kind of grinding device for medicine, including box, box inside is equipped with medicine tray, the top of box is equipped with support, further include: install on the rammer component of support, rammer component is used to carry out primary rammer to medicine;And, rammer component includes mounting plate installed on the box, the outside of mounting plate is equipped with rammer motor, the output end of rammer motor is fixedly connected with carousel by shaft coupling, the outside rotationally connected of carousel has connecting rod, and, install in the grinding component of box interior, grinding component is used to carry out fine grinding to medicine, rotate in grinding groove by grinding motor drive grinding roller, realize the fine grinding of rammer medicine, improve the uniformity of medicine grinding. Meanwhile, by means of structure linkage mechanism, cam impact movable plate, guide pillar further impact grinding groove, cause grinding groove vibration, effectively prevent grinding through-hole blockage, facilitate use.

Description

Technical Field

[0001] This utility model relates to the field of biopharmaceutical equipment technology, specifically a grinding device for pharmaceuticals. Background Technology

[0002] In clinical practice, it is sometimes necessary to grind tablets into powder for administration, which requires the use of a medicine grinding bowl. However, this need arises frequently in clinical practice, and it is usually done by nurses. This is not only time-consuming and labor-intensive, but it is also difficult to ensure that the powder particle size is uniform, and the grinding bowl is relatively inefficient.

[0003] Most existing grinding devices use a method of directly placing the drug into the grinding process, which may lead to uneven particle size distribution. Specifically, some areas are ground too finely, causing them to overheat and stick together, while other areas are ground too coarsely, affecting the drug's efficacy. To address this, we propose a drug grinding device. Utility Model Content

[0004] The purpose of this invention is to provide a pharmaceutical grinding device that solves the problem of uneven grinding particles in existing grinding devices by having a crushing component and a grinding component work together.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pharmaceutical grinding device includes a housing with a medicine-holding tray inside and a support mounted on the top of the housing. It further includes: a crushing component mounted on the support for preliminary crushing of the medicine; the crushing component includes a mounting plate mounted on the housing, a crushing motor mounted outside the mounting plate, a turntable fixedly connected to the output end of the crushing motor via a coupling, a connecting rod rotatably connected to the outside of the turntable, a guide rod rotatably connected to the outside of the connecting rod, and a limiting frame slidably connected to the outside of the guide rod for limiting its movement; and a grinding component installed inside the housing for fine grinding of the medicine.

[0007] Preferably, a medicine guide tube is installed on the box body, the medicine guide tube has a medicine release hole, and the guide rod passes through and extends into the medicine guide tube.

[0008] Preferably, the grinding component includes a grinding motor installed outside the housing, the output end of the grinding motor is fixedly connected to a drive wheel via a coupling, a driven wheel is rotatably connected to the outside of the housing, and belts are synchronously provided on the outside of the drive wheel and the driven wheel.

[0009] Preferably, the grinding motor is coaxially fixedly connected to a grinding roller, and a grinding groove is rotatably connected to the outside of the grinding roller, with the grinding groove installed inside the housing.

[0010] Preferably, a spring is fixedly connected to the bottom of the grinding tank, a movable plate is connected to the bottom of the spring, and guide posts are evenly installed on the movable plate.

[0011] Preferably, the bottom of the drug delivery tube extends through and into the interior of the housing, and the bottom of the drug delivery tube is provided with a conical guide groove, which is located above the grinding roller.

[0012] Preferably, both the grinding tank and the movable plate are provided with through holes for drug flow, and the through holes are located above the drug-holding tray.

[0013] Preferably, the driven wheel is coaxially fixedly connected to a cam, and the cam is located below the movable plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model is equipped with a crushing component. The crushing motor drives the guide rod to reciprocate, which facilitates the initial crushing of the medicine, thereby facilitating the grinding component to grind the medicine and improving the uniformity of the medicine grinding.

[0016] 2. This utility model is equipped with a grinding component. A grinding motor drives the grinding roller to rotate in the grinding tank, thereby achieving fine grinding of the crushed medicine and improving the uniformity of the grinding. At the same time, through a structural linkage mechanism, the cam strikes the movable plate, and the guide post then strikes the grinding tank, causing the grinding tank to vibrate, effectively preventing the grinding holes from becoming clogged and facilitating use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;

[0020] Figure 3 This is a front view of the overall structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the crushing component of this utility model;

[0022] Figure 5 This is a schematic diagram of the grinding component structure of this utility model. Figure 1 ;

[0023] Figure 6 This is a schematic diagram of the grinding component structure of this utility model. Figure 2 ;

[0024] The components represented by each number in the attached diagram are listed below: 1. Box body; 2. Medicine tray; 3. Support; 4. Crushing component; 5. Grinding component; 6. Crushing motor; 7. Mounting plate; 8. Turntable; 9. Connecting rod; 10. Guide rod; 11. Limiting frame; 12. Medicine guide tube; 13. Medicine discharge hole; 14. Grinding motor; 15. Drive wheel; 16. Belt; 17. Driven wheel; 18. Grinding groove; 19. Grinding roller; 20. Through hole; 21. Movable plate; 22. Guide post; 23. Spring; 24. Cam. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] The following description is intended to disclose the present invention and to enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0027] Example 1: Please refer to Figure 1 - Figure 6 The diagram shows a pharmaceutical grinding device, including a housing 1 made of 316L stainless steel, which has excellent corrosion resistance and antibacterial properties, meets the safety standards for pharmaceutical contact materials, and has a finely polished surface to avoid drug residue and contamination. The bottom of the housing 1 is equipped with support legs, each fitted with rubber anti-slip pads to enhance the stability of the device during operation and also to reduce vibration and noise. An external control panel is installed, integrating speed adjustment, time setting, and start / stop buttons. The operating parameters of the crushing motor 6 and the grinding motor 14 can be adjusted according to the hardness of the drug to adapt to different grinding needs. Inside the housing 1 is a medicine tray 2 made of food-grade polypropylene, which is lightweight and chemically stable, will not react with the drug, and ensures the purity of the powder. The medicine tray 2 is used to hold the ground powder. A support 3 is installed on the top of the housing 1, made of aluminum alloy, which combines high strength and lightweight characteristics, stably supporting the crushing component 4 and related transmission structures, while also providing good heat dissipation.

[0028] It also includes: a crushing component 4 mounted on the bracket 3, used for preliminary crushing of the medicine; and the crushing component 4 includes a mounting plate 7 mounted on the housing 1, the mounting plate 7 being bolted to the housing 1, with a buffer pad added at the connection to reduce vibration transmission generated during motor operation, a crushing motor 6 mounted on the outside of the mounting plate 7, the output end of the crushing motor 6 being fixedly connected to a turntable 8 via a coupling, a connecting rod 9 being rotatably connected to the outside of the turntable 8, and a guide rod 10 being rotatably connected to the outside of the connecting rod 9. The bottom of the guide rod 10 is arc-shaped. The arc-shaped surface of the bottom of the guide rod 10 is finely polished, and the arc conforms to the internal space of the drug delivery tube 12 to ensure that the drug can be fully covered during the crushing process and avoid local omissions. The guide rod 10 is externally slidably connected to the limiting frame 11. The limiting frame 11 is inlaid with a PTFE composite bushing, which has a low coefficient of friction and good self-lubricating performance, reducing the wear of the guide rod 10 during reciprocating motion. The limiting frame 11 is used to limit the guide rod 10. In addition, the grinding component 5 is installed inside the box 1. The grinding component 5 is used to finely grind the drug.

[0029] Furthermore, a drug delivery cylinder 12 is installed on the housing 1. The drug delivery cylinder 12 is made of 316L stainless steel, the same as the housing 1, with a smooth inner wall without burrs to prevent the drug from adhering and remaining during the transportation process. The drug delivery cylinder 12 is provided with a drug discharge hole 13, which is equipped with a removable dust cover. When not in use, it can prevent dust from entering the inside of the drug delivery cylinder 12. When feeding, it is convenient to control the amount of drug added and avoid the drug from spilling. The drug discharge hole 13 is used to put in the drug, and the guide rod 10 passes through and extends into the inside of the drug delivery cylinder 12.

[0030] The crushing motor 6 drives the guide rod 10 to reciprocate, which facilitates the initial crushing of the drug, thereby facilitating the grinding component 5 to perform the grinding operation on the drug and improving the uniformity of the drug grinding.

[0031] Specifically, the grinding component 5 includes a grinding motor 14 installed outside the housing 1. The output end of the grinding motor 14 is fixedly connected to a drive wheel 15 via a coupling. A driven wheel 17 is rotatably connected to the outside of the housing 1. A belt 16 is synchronously provided outside the drive wheel 15 and the driven wheel 17.

[0032] Example 2: This embodiment is a further explanation of Example 1, based on... Figure 1 - Figure 6 As shown, it is worth noting that the grinding motor 14 is coaxially fixedly connected to the grinding roller 19. The grinding roller 19 is made of zirconia ceramic material with a hardness of up to 1200HV. It has excellent wear resistance and will not introduce metal impurities, making it suitable for grinding various drugs. The grinding roller 19 is externally rotatably connected to the grinding groove 18. The grinding groove 18 is made of manganese 13 material. After water toughening treatment, a highly wear-resistant hardened layer can be formed on the surface, which can withstand the long-term friction and impact of the grinding roller 19. The grinding groove 18 is installed inside the housing 1.

[0033] Meanwhile, a spring 23 is fixedly connected to the bottom of the grinding tank 18. The spring 23 is made of spring steel and has good elasticity. A movable plate 21 is connected to the bottom of the spring 23. Guide posts 22 are evenly installed on the movable plate 21. The guide posts 22 are made of stainless steel and are treated to be wear-resistant. The bottom of the medicine guide cylinder 12 is provided with a conical guide groove with a smooth and unobstructed inner wall, which can guide the crushed medicine to fall accurately above the grinding roller 19 without any residue accumulation.

[0034] Further reference Figure 3 - Figure 5 As shown, both the grinding tank 18 and the movable plate 21 are provided with through holes 20 for the flow of medicine. The diameter of the through holes 20 is 0.1-0.3 mm. They are uniformly distributed to ensure that the powder can pass through smoothly and to screen out particles that are not fully ground. The through holes 20 are located above the medicine tray 2.

[0035] At the same time, refer to Figure 5 As shown, a cam 24 is coaxially fixedly connected to the driven wheel 17. The cam 24 is located below the movable plate 21. It drives the grinding roller 19 to rotate in the grinding tank 18 through the grinding motor 14, thereby achieving fine grinding of the crushed medicine and improving the uniformity of the grinding. At the same time, with the help of the structural linkage mechanism, the cam 24 impacts the movable plate 21, and the guide post 22 then impacts the grinding tank 18, causing the grinding tank 18 to vibrate, effectively preventing the grinding through hole 20 from becoming blocked, and facilitating use.

[0036] This solution adopts a two-step process of "crushing + grinding". First, large pieces of medicine are crushed and then finely ground, which greatly improves grinding efficiency and powder uniformity. It is suitable for various medicines such as Chinese medicine and Western medicine with different hardness. At the same time, the structural linkage design is ingenious. The grinding and vibration anti-clogging functions are realized simultaneously through the same grinding motor 14, without the need for an additional power source, which is energy-saving, environmentally friendly and reduces the equipment failure rate.

[0037] The principle behind this solution is as follows:

[0038] First, after starting the device, set appropriate parameters through the control panel and put the drug to be ground into the drug delivery cylinder 12 through the drug delivery hole 13.

[0039] When the crushing motor 6 is started, the output end drives the turntable 8 to make a circular motion through the coupling. The guide rod 10 is pulled by the connecting rod 9 to make a vertical reciprocating motion under the constraint of the limit frame 11. The arc surface at the bottom of the guide rod 10 repeatedly hits the medicine in the medicine guide cylinder 12, crushing large pieces of medicine into uniform small particles, laying the foundation for subsequent fine grinding.

[0040] Secondly, the crushed medicine falls through the conical guide channel into the gap between the grinding tank 18 and the grinding roller 19. The grinding motor 14 starts synchronously, and its output drives the drive wheel 15 to rotate. The drive wheel 15 drives the driven wheel 17 to rotate through the belt 16. The grinding motor 14 coaxially drives the grinding roller 19 to rotate at high speed in the grinding tank 18. Through compression and shearing, the small particles of medicine are ground into fine powder. When the driven wheel 17 rotates, it drives the cam 24 to rotate synchronously. The cam 24 periodically lifts the movable plate 21, while the spring 23 is compressed. The movable plate 21 transmits the force to the grinding tank 18 through the guide post 22, causing the grinding tank 18 to produce high-frequency slight vibration.

[0041] Finally, under the action of vibration, the powder adhering to the inner wall of the through hole 20 is shaken off, effectively avoiding blockage of the through hole. The qualified powder is naturally collected in the medicine tray 2 below through the through hole 20.

[0042] It should be noted that the circuits and controls involved in this utility model are all existing technologies and have been fully disclosed, so they will not be described in detail here.

[0043] It is understood that this utility model is described through some embodiments, and as those skilled in the art will know, various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, modifications to these features and embodiments can be made to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A pharmaceutical grinding device, comprising a housing (1), wherein a medicine holding tray (2) is provided inside the housing (1), and a support (3) is installed on the top of the housing (1). Its features are, Also includes: A crushing component (4) mounted on a support (3) for initially crushing the drug; and, The crushing component (4) includes a mounting plate (7) installed on the housing (1). A crushing motor (6) is mounted on the outside of the mounting plate (7). The output end of the crushing motor (6) is fixedly connected to a turntable (8) via a coupling. A connecting rod (9) is rotatably connected to the outside of the turntable (8). A guide rod (10) is rotatably connected to the outside of the connecting rod (9). A limit frame (11) is slidably connected to the outside of the guide rod (10). The limit frame (11) is used to limit the guide rod (10); and, A grinding component (5) is installed inside the housing (1) for fine grinding of the drug.

2. The pharmaceutical grinding apparatus according to claim 1, characterized in that: The box (1) is equipped with a medicine guide tube (12), and the medicine guide tube (12) has a medicine release hole (13). The guide rod (10) passes through and extends into the medicine guide tube (12).

3. The pharmaceutical grinding apparatus according to claim 1, characterized in that: The grinding component (5) includes a grinding motor (14) installed outside the housing (1). The output end of the grinding motor (14) is fixedly connected to a drive wheel (15) via a coupling. A driven wheel (17) is rotatably connected to the outside of the housing (1). A belt (16) is synchronously provided on the outside of the drive wheel (15) and the driven wheel (17).

4. A pharmaceutical grinding apparatus according to claim 3, characterized in that: The grinding motor (14) is coaxially fixedly connected to the grinding roller (19), and the grinding roller (19) is rotatably connected to the outside of the grinding groove (18), which is installed inside the housing (1).

5. A pharmaceutical grinding apparatus according to claim 4, characterized in that: A spring (23) is fixedly connected to the bottom of the grinding groove (18), and a movable plate (21) is connected to the bottom of the spring (23). Guide posts (22) are evenly installed on the movable plate (21).

6. A pharmaceutical grinding apparatus according to claim 2, characterized in that: The bottom of the drug delivery tube (12) extends through and into the interior of the box (1). The bottom of the drug delivery tube (12) is provided with a conical guide groove, which is located above the grinding roller (19).

7. A pharmaceutical grinding apparatus according to claim 5, characterized in that: Both the grinding groove (18) and the movable plate (21) are provided with through holes (20) for drug flow, and the through holes (20) are located above the medicine tray (2).

8. A pharmaceutical grinding apparatus according to claim 3, characterized in that: The driven wheel (17) is coaxially fixedly connected to a cam (24), which is located below the movable plate (21).

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