Medicine grinding device for tablet preparation

Abstract

The invention relates to the technical field of medicine preparation, and discloses a medicine grinding device for tablet preparation, the medicine grinding device comprises a grinding tank with a top opening, a tank cover, a grinding blade and a grinding motor driving the grinding blade to rotate, the tank cover is clamped with the top of the grinding tank, the grinding blade is arranged on the inner bottom wall of the grinding tank, and the grinding motor drives the grinding blade to rotate. The grinding motor is installed at the bottom of the grinding tank, a scraping part for scraping the inner wall is arranged in the grinding tank and located above the grinding blade, a lifting part for driving the scraping part to move up and down is arranged in the tank cover, the lifting part is connected with the scraping part through a sliding rod, and the scraping part is located above the grinding blade. According to the device, medicine powder on the inner wall of the tank body can be scraped back into a grinding area in the grinding process, so that the effects of continuous grinding and sufficient grinding are achieved, the grinding time is shortened, and the grinding efficiency is improved.

Description

Technical Field

[0001] The invention relates to a grinding device, in particular to a medicine grinding device for preparing tablets. Background Art

[0002] The traditional method of tablet production is to manually weigh each medicinal material in the formula according to the weight ratio in the formula, and then pour all the drugs into a grinding container and grind them into powder. Existing blade-type grinding equipment uses high-speed rotating grinding blades to grind drugs, but because the rotating grinding blades will exert outward centrifugal force on the drugs, most of the drugs will adhere to the inner wall of the grinding container, resulting in insufficient grinding. It is necessary to stop the machine and use tools such as stirring rods to scrape the drugs on the inner wall before continuing to grind. It may take several rounds of stopping and scraping to complete the grinding work, which seriously affects the efficiency of tablet preparation. Summary of the invention

[0003] In view of this, the present invention provides a drug grinding device for tablet preparation, which can scrape the drug powder on the inner wall of the tank body back into the grinding area during the grinding process to achieve the effect of continuous grinding and sufficient grinding, thereby shortening the grinding time and improving the grinding efficiency.

[0004] The technical solution of the present invention is achieved in this way:

[0005] The present invention provides a medicine grinding device for tablet preparation, comprising a grinding jar with an opening at the top, a jar cover, a grinding blade and a grinding motor for driving the grinding blade to rotate, the jar cover is snap-connected with the top of the grinding jar, the grinding blade is arranged on the inner bottom wall of the grinding jar, the grinding motor is installed at the bottom of the grinding jar, a scraping member for scraping the inner wall of the grinding jar is arranged inside the grinding jar, the scraping member is located above the grinding blade, a lifting member for driving the scraping member to move up and down is arranged inside the jar cover, and the lifting member is connected to the scraping member through a sliding rod.

[0006] Preferably, the scraper is a circular scraper ring, and the slide rods are symmetrically arranged at two ends of the top of the scraper ring.

[0007] Preferably, the lifting component includes an eccentric wheel, a return spring and a power device for driving the eccentric wheel to rotate, the sliding rod is slidably penetrated into the interior of the tank cover, a mounting plate for connecting the sliding rods on both sides is provided inside the tank cover, the return spring is sleeved on the sliding rod, one end of the return spring abuts against the bottom of the mounting plate, and the other end abuts against the inner bottom wall of the tank cover, the eccentric wheel is rotatably connected to the inner wall of the tank cover via a rotating shaft, and the eccentric wheel abuts against the top of the mounting plate.

[0008] Preferably, the power device comprises a drive motor, and an output shaft of the drive motor is coaxially connected to the rotating shaft.

[0009] Preferably, the jar cover is threadedly connected to the top of the grinding jar.

[0010] Preferably, a grinding shaft is provided at the inner bottom of the grinding jar, the output shaft of the grinding motor is coaxially connected to the grinding shaft, a slot matching the grinding shaft is provided at the bottom center of the grinding blade, and the grinding blade is plugged into the grinding shaft.

[0011] Preferably, the top of the grinding shaft is a rectangular shaft, and the slot is a rectangular groove.

[0012] Preferably, an extension rod is fixed at the top center of the grinding blade, a groove is opened at the top of the extension rod, and a connecting column plugged into the groove is provided at the bottom center of the tank cover, and the connecting column is rotatably connected to the groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides a medicine grinding device for tablet preparation, wherein a grinding motor drives a grinding blade to rotate to grind the medicine, and the medicine will be thrown off and adhere to the inner wall of a tank body during the grinding process, and a lifting component is started to drive a scraper to make an up and down reciprocating motion above the grinding blade, and the inner wall of the tank body is scraped by the lifting of the scraper, without the need for a shutdown step, and during the grinding process, the medicine powder on the inner wall of the tank body can be scraped back into the grinding area of ​​the grinding blade, so as to achieve the effect of continuous grinding and sufficient grinding, thereby shortening the grinding time and improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the internal structure of a grinding jar according to a first embodiment of the present invention;

[0017] Figure 2 An exploded view of a grinding jar and a jar cover according to a first embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of Embodiment 2 of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the grinding blade according to the second embodiment of the present invention.

[0020] In the figure, 1. grinding jar; 2. jar cover; 3. grinding blade; 4. grinding motor; 5. sliding rod; 6. scraper ring; 7. eccentric wheel; 8. return spring; 9. mounting plate; 10. driving motor; 11. grinding shaft; 12. slot; 13. extension rod; 14. groove; 15. connecting column. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0022] Embodiment 1

[0023] See also Figure 1 to Figure 2 The present invention provides a drug grinding device for tablet preparation, comprising a grinding jar 1 with an opening at the top, a jar cover 2, a grinding blade 3 and a grinding motor 4 for driving the grinding blade 3 to rotate, the jar cover 2 is snap-fitted with the top of the grinding jar 1, the grinding blade 3 is arranged on the inner bottom wall of the grinding jar 1, the grinding motor 4 is installed at the bottom of the grinding jar 1, a scraping member for scraping the inner wall of the grinding jar 1 is provided inside the grinding jar 1, the scraping member is located above the grinding blade 3, a lifting member for driving the scraping member to move up and down is provided inside the jar cover 2, and the lifting member is connected to the scraping member through a sliding rod 5.

[0024] Open the tank cover 2, pour the medicine to be ground into the grinding tank 1, cover the tank cover 2, start the grinding motor 4 to drive the grinding blade 3 to rotate and grind the medicine. During the grinding process, the medicine will be thrown off and adhere to the inner wall of the tank body. Start the lifting component to drive the scraper to do up and down reciprocating motion above the grinding blade 3. The scraping effect on the inner wall of the tank body is achieved by lifting the scraper. There is no need to stop the machine. During the grinding process, the medicine powder on the inner wall of the tank body can be scraped back into the grinding area of ​​the grinding blade 3 to achieve the effect of continuous grinding and sufficient grinding, thereby shortening the grinding time and improving the grinding efficiency.

[0025] The scraper is a circular scraper ring 6, and the slide rod 5 is symmetrically arranged at the two ends of the top of the scraper ring 6. The plate-type scraper will compress the storage space of the medicine, resulting in a low single grinding amount. The middle part of the circular scraper ring 6 is hollow, which can scrape the inner wall without affecting the storage amount of the medicine.

[0026] The lifting component includes an eccentric wheel 7, a return spring 8 and a power device that drives the eccentric wheel 7 to rotate. The slide rod 5 is slidably inserted into the interior of the tank cover 2. A mounting plate 9 is provided inside the tank cover 2 to connect the slide rods 5 on both sides. The top of the slide rod 5 is fixedly connected to the bottom of the mounting plate 9. The return spring 8 is sleeved on the slide rod 5. One end of the return spring 8 abuts against the bottom of the mounting plate 9, and the other end abuts against the inner bottom wall of the tank cover 2. The eccentric wheel 7 is rotatably connected to the inner wall of the tank cover 2 through a rotating shaft, and the eccentric wheel 7 abuts against the top of the mounting plate 9.

[0027] The power device comprises a driving motor 10, and an output shaft of the driving motor 10 is coaxially connected to the rotating shaft.

[0028] The upward elastic force of the reset spring 8 makes the top of the mounting plate 9 always against the bottom of the eccentric wheel 7. The driving motor 10 drives the eccentric wheel 7 to rotate through the rotating shaft. The downward swing of the eccentric wheel 7 will exert pressure on the mounting plate 9. The mounting plate 9 is forced to move downward, driving the slide bar 5 and the scraper ring 6 to move downward, and the reset spring 8 is compressed; when the eccentric wheel 7 swings upward, the reset spring 8 exerts an upward elastic force on the mounting plate 9, and the mounting plate 9 drives the slide bar 5 and the scraper ring 6 to move upward. Through the reciprocating motion of the scraper ring 6 up and down, the medicine on the inner wall of the grinding tank 1 can be scraped off, and the amplitude can shake off part of the medicine accumulated on the top of the scraper ring 6, so that the medicine can be fully ground.

[0029] The jar cover 2 is threadedly connected to the top of the grinding jar 1 .

[0030] Embodiment 2

[0031] See also Figure 3 to Figure 4 The difference between this embodiment and the first embodiment is that a grinding shaft 11 is provided at the inner bottom of the grinding jar 1, the output shaft of the grinding motor 4 is coaxially connected to the grinding shaft 11, a slot 12 matching the grinding shaft 11 is provided at the bottom center of the grinding blade 3, and the grinding blade 3 is plugged into the grinding shaft 11.

[0032] The top of the grinding shaft 11 is a rectangular shaft, and the slot 12 is a rectangular groove.

[0033] Before use, first connect the slot 12 of the grinding blade 3 with the grinding shaft 11, start the grinding motor 4 to drive the grinding shaft 11 to rotate, thereby driving the grinding blade 3 to rotate synchronously to grind the medicine; after use, pour out the medicine powder from the grinding jar 1, then remove the grinding blade 3 from the grinding shaft 11, clean the grinding blade 3 and the grinding jar 1, and wait for the next grinding work.

[0034] An extension rod 13 is fixed at the top center of the grinding blade 3, and a groove 14 is provided at the top of the extension rod 13. A connecting column 15 plugged into the groove 14 is provided at the bottom center of the tank cover 2, and the connecting column 15 is rotatably connected to the groove 14. After the grinding blade 3 is plugged into the slot 12, the medicine is poured into the grinding tank 1, and the tank cover 2 is covered, so that the connecting column 15 at the bottom of the tank cover 2 is plugged into the groove 14 at the top of the extension rod 13, thereby locking the grinding blade 3. During the rotation of the grinding blade 3, the top extension rod 13 also rotates on the connecting column 15, thereby preventing the grinding blade 3 from being thrown off the track under the action of centrifugal force.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drug grinding device for tablet preparation, comprising a grinding jar with an opening at the top, a jar cover, a grinding blade and a grinding motor for driving the grinding blade to rotate, wherein the jar cover is snap-fitted to the top of the grinding jar, the grinding blade is arranged on the inner bottom wall of the grinding jar, and the grinding motor is installed at the bottom of the grinding jar, characterized in that: The grinding jar is provided with a scraper for scraping the inner wall, the scraper is located above the grinding blade, the jar cover is provided with a lifting component for driving the scraper to move up and down, and the lifting component is connected to the scraper through a sliding rod.

2. A drug grinding device for tablet preparation according to claim 1, characterized in that: The scraper is a circular scraper ring, and the slide rods are symmetrically arranged at two ends of the top of the scraper ring.

3. A drug grinding device for tablet preparation according to claim 1, characterized in that: The lifting component includes an eccentric wheel, a return spring and a power device for driving the eccentric wheel to rotate, the sliding rod is slidably penetrated into the interior of the tank cover, a mounting plate for connecting the sliding rods on both sides is provided inside the tank cover, the return spring is sleeved on the sliding rod, one end of the return spring abuts against the bottom of the mounting plate, and the other end abuts against the inner bottom wall of the tank cover, the eccentric wheel is rotatably connected to the inner wall of the tank cover through a rotating shaft, and the eccentric wheel abuts against the top of the mounting plate.

4. A drug grinding device for tablet preparation according to claim 3, characterized in that: The power device comprises a driving motor, and an output shaft of the driving motor is coaxially connected with the rotating shaft.

5. A drug grinding device for tablet preparation according to claim 1, characterized in that: The jar cover is threadedly connected to the top of the grinding jar.

6. A drug grinding device for tablet preparation according to claim 1, characterized in that: The inner bottom of the grinding jar is provided with a grinding shaft, the output shaft of the grinding motor is coaxially connected with the grinding shaft, the bottom center of the grinding blade is provided with a slot matching the grinding shaft, and the grinding blade is plugged into the grinding shaft.

7. A drug grinding device for tablet preparation according to claim 1, characterized in that: The top of the grinding shaft is a rectangular shaft, and the slot is a rectangular groove.

8. A drug grinding device for tablet preparation according to claim 7, characterized in that: An extension rod is fixed at the top center of the grinding blade, a groove is opened at the top of the extension rod, and a connecting column plugged into the groove is provided at the bottom center of the tank cover, and the connecting column is rotatably connected to the groove.

Images