A pharmaceutical grinding device for tablet preparation

Abstract

This invention relates to the field of pharmaceutical preparation technology and discloses a pharmaceutical grinding device for tablet preparation, comprising a grinding jar with a top opening, a jar lid, grinding blades, and a grinding motor that drives the grinding blades to rotate. The jar lid is snapped into the top of the grinding jar. The grinding blades are disposed on the inner bottom wall of the grinding jar. The grinding motor is installed at the bottom of the grinding jar. Inside the grinding jar, there is a scraper that scrapes the inner wall and is located above the grinding blades. Inside the jar lid, there is a lifting component that moves the scraper up and down. The lifting component is connected to the scraper via a sliding rod. This device can scrape the drug powder on the inner wall of the jar back into the grinding area during the grinding process, so as to achieve continuous and thorough grinding, thereby shortening the grinding time and improving the grinding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of grinding devices, in particular to a kind of medicine grinding device for tablet preparation. BACKGROUND

[0002] Traditional tablet making method is to weigh each medicine in prescription according to the weight proportion in prescription by hand, then pour all medicines into grinding container and grind into powder. Existing blade type grinding equipment grinds medicine by high-speed rotating grinding blade, but centrifugal force is applied to medicine by rotating grinding blade, most of the medicine will adhere to the inner wall of the grinding container, resulting in insufficient grinding, and the medicine on the inner wall needs to be scraped off by stoping and using stirring rod and other tools before continuing to grind, which may need to go through several rounds of stoping and scraping, to complete the grinding work, which seriously affects the preparation efficiency of tablet. SUMMARY

[0003] Therefore, the present application provides a kind of medicine grinding device for tablet preparation, which can scrape the medicine powder on the inner wall of the tank back to the grinding area during grinding, to achieve the effect of continuous grinding and sufficient grinding, thereby shortening the grinding time and improving the grinding efficiency.

[0004] The technical scheme of the present application is as follows:

[0005] The present application provides a kind of medicine grinding device for tablet preparation, which comprises a top-open grinding tank, 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, the grinding motor is installed at the bottom of the grinding tank, the inside of the grinding tank is provided with a scraping member for scraping the inner wall, the scraping member is located above the grinding blade, the inside of the tank cover is provided with a lifting component driving the scraping member to move up and down, and the lifting component is connected with the scraping member through a slide rod.

[0006] Preferably, the scraping member is a scraping ring of circular ring type, and the slide rods are symmetrically arranged at the top of both ends of the scraping ring.

[0007] Preferably, the lifting component comprises an eccentric wheel, a return spring and a power device driving the eccentric wheel to rotate, the slide rod is slidably arranged in the inside of the tank cover, the inside of the tank cover is provided with a mounting plate connecting the two slide rods together, the return spring is sleeved on the slide 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 with the inner wall of the tank cover through a rotating shaft, and the eccentric wheel abuts against the top of the mounting plate.

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

[0009] Preferably, the tank cover is threadedly connected with the top of the grinding tank.

[0010] Preferably, the inner bottom of the grinding tank is provided with a grinding shaft, an 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 matched with the grinding shaft, and the grinding blade is inserted with the grinding shaft.

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

[0012] Preferably, the top center of the grinding blade is fixed with an extension rod, the top of the extension rod is provided with a groove, the bottom center of the tank cover is provided with a connecting column inserted with the groove, and the connecting column is rotationally connected with the groove.

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

[0014] The present application provides a medicine grinding device for tablet preparation. The grinding motor drives the grinding blade to rotate to grind the medicine. The medicine is thrown and adhered to the inner wall of the tank during the grinding process. The lifting component is started to drive the scraping member to reciprocate above the grinding blade. The scraping effect on the inner wall of the tank is realized by the lifting of the scraping member. The medicine powder on the inner wall of the tank can be scraped back to the grinding area of the grinding blade during the grinding process, 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 DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only preferred embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is an internal structure diagram of the grinding tank of the first embodiment of the present application.

[0017] Figure 2 It is an exploded view of the grinding tank and the tank cover of the first embodiment of the present application.

[0018] Figure 3 It is an internal structure diagram of the second embodiment of the present application.

[0019] Figure 4 It is an internal structure diagram of the grinding blade of the second embodiment of the present application.

[0020] In the figure, 1, grinding tank; 2, tank cover; 3, grinding blade; 4, grinding motor; 5, slide bar; 6, scraping ring; 7, eccentric wheel; 8, return spring; 9, mounting plate; 10, drive 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 application, specific examples are provided below, and the present application is further illustrated in conjunction with the accompanying drawings.

[0022] Example one

[0023] Reference Figures 1 to 2 The present application provides a kind of medicine grinding device for tablet preparation, including top opening grinding tank 1, tank cover 2, grinding blade 3 and drive the grinding blade 3 rotation grinding motor 4, the tank cover 2 and the top of the grinding tank 1 are connected, the grinding blade 3 is arranged in the inner bottom wall of the grinding tank 1, the grinding motor 4 is installed in the bottom of the grinding tank 1, the inside of the grinding tank 1 is provided with the scraping member for scraping the inner wall, the scraping member is located above the grinding blade 3, the inside of the tank cover 2 is provided with lifting component for driving the scraping member to move up and down, the lifting component is connected with the scraping member by slide bar 5.

[0024] Open tank cover 2, pour the medicine needing grinding into grinding tank 1, cover tank cover 2, start grinding motor 4 to drive grinding blade 3 to rotate and grind medicine, medicine will be thrown in the grinding process and adhere to the inner wall of the tank body, start lifting component to drive scraping member to reciprocate above grinding blade 3, realize the scraping effect of the inner wall of the tank body by the lifting of scraping member, without stopping step, the medicine powder on the inner wall of the tank body can be scraped back to the grinding area of grinding blade 3 during the grinding process, to achieve the effect of continuous grinding and sufficient grinding, thereby shortening the grinding time and improving the grinding efficiency.

[0025] The scraping member is circular ring type scraping ring 6, the slide bar 5 is symmetrically arranged at the top of the two ends of the scraping ring 6, and the plate type scraping member can compress the storage space of the medicine, so that the single grinding amount is not high, the middle part of the circular ring type scraping ring 6 is hollow, which can scrape the inner wall without affecting the storage amount of the medicine.

[0026] The lifting component comprises an eccentric wheel 7, a return spring 8 and a power device for rotating the eccentric wheel 7, the slide rod 5 slides through the inside of the can cover 2, the inside of the can cover 2 is provided with a mounting plate 9 for connecting the two slide rods 5 together, the top of the slide rod 5 is fixedly connected with 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 can cover 2, the eccentric wheel 7 is rotationally connected with the inner wall of the can cover 2 through a rotating shaft, and the top of the mounting plate 9 abuts against the bottom of the eccentric wheel 7.

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

[0028] The upward elastic force of the return spring 8 makes the top of the mounting plate 9 always abut against the bottom of the eccentric wheel 7, the driving motor 10 rotates the eccentric wheel 7 through the rotating shaft, the downward swing of the eccentric wheel 7 exerts pressure on the mounting plate 9, the mounting plate 9 moves downward under the force, thereby moving the slide rod 5 and the scraping ring 6 downward, and the return spring 8 is compressed; when the eccentric wheel 7 swings upward, the return spring 8 exerts upward elastic force on the mounting plate 9, the mounting plate 9 moves the slide rod 5 and the scraping ring 6 upward. Through the reciprocating movement of the scraping ring 6 up and down, firstly, the medicine on the inner wall of the grinding tank 1 can be scraped off, and secondly, through the amplitude, the part of the medicine accumulated on the top of the scraping ring 6 can be shaken off, so that the medicine can be fully ground.

[0029] The can cover 2 is threadedly connected with the top of the grinding tank 1.

[0030] Embodiment two

[0031] Referring to Figures 3 to 4 , the difference between the embodiment and the embodiment one is that the inner bottom of the grinding tank 1 is provided with a grinding shaft 11, an output shaft of the grinding motor 4 is coaxially connected with the grinding shaft 11, the bottom center of the grinding blade 3 is provided with a slot 12 matched with the grinding shaft 11, and the grinding blade 3 is inserted with the grinding shaft 11.

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

[0033] Before use, the slot 12 of the grinding blade 3 is inserted with the grinding shaft 11, the grinding motor 4 is started to drive the grinding shaft 11 to rotate, thereby driving the grinding blade 3 to rotate synchronously, and the medicine is ground; after use, the powder is poured out of the grinding tank 1, then the grinding blade 3 is taken off from the grinding shaft 11, and the grinding blade 3 and the grinding tank 1 are cleaned, waiting for the next grinding work.

[0034] The top center of the grinding blade 3 is fixed with an extension rod 13, the top of the extension rod 13 is provided with a groove 14, the bottom center of the can cover 2 is provided with a connecting column 15 which is inserted with the groove 14, and the connecting column 15 is rotationally connected with the groove 14. After the grinding blade 3 is inserted with the slot 12, the medicine is poured into the grinding can 1, the can cover 2 is covered, the connecting column 15 at the bottom of the can cover 2 is inserted with the groove 14 at the top of the extension rod 13, so that the locking of the grinding blade 3 is realized, and the top extension rod 13 also rotates on the connecting column 15 in the rotating process of the grinding blade 3, so that the grinding blade 3 is prevented from being thrown off the track under the action of the centrifugal force.

[0035] The above merely describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A medicine grinding device for tablet preparation, comprising a top-opened grinding jar, a jar cover, a grinding blade and a grinding motor driving the grinding blade, the jar cover and the top of the grinding jar being clamped, the grinding blade being arranged at the inner bottom wall of the grinding jar, and the grinding motor being installed at the bottom of the grinding jar, characterized in that, The interior of the grinding tank is provided with a scraping element which plays a scraping role on the inner wall, the scraping element is located above the grinding blade, the interior of the tank cover is provided with a lifting component which drives the scraping element to move up and down, the lifting component is connected with the scraping element through a sliding rod, the inner bottom of the grinding tank is provided with a grinding shaft, the grinding motor drives the grinding blade to rotate through the grinding shaft, the top center of the grinding blade is fixed with an extension rod, the top of the extension rod is provided with a groove, the bottom center of the tank cover is provided with a connecting column which is inserted into the groove, and the connecting column is rotationally connected with the groove.

2. The pharmaceutical grinding device for tablet preparation according to claim 1, wherein The scraping element is a scraping ring in a circular ring type, and the sliding rods are symmetrically arranged at the two ends of the top of the scraping ring.

3. The pharmaceutical grinding device for tablet preparation according to claim 1, wherein, The lifting component comprises an eccentric wheel, a return spring and a power equipment which drives the eccentric wheel to rotate, the sliding rod is slidably arranged in the interior of the tank cover, the interior of the tank cover is provided with a mounting plate which connects the two sliding rods together, 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 rotationally connected with the inner wall of the tank cover through a rotating shaft, and the eccentric wheel abuts against the top of the mounting plate.

4. The pharmaceutical grinding device for tablet preparation according to claim 3, wherein The power equipment comprises a driving motor, and the output shaft of the driving motor is coaxially connected with the rotating shaft.

5. The pharmaceutical grinding device for tablet preparation according to claim 1, wherein The tank cover is threadedly connected with the top of the grinding tank.

6. The pharmaceutical grinding device for tablet preparation according to claim 1, wherein 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 which is matched with the grinding shaft, and the grinding blade is inserted into the grinding shaft.

7. The pharmaceutical grinding device for tablet preparation according to claim 6, wherein The top of the grinding shaft is a rectangular shaft, and the slot is a rectangular groove.

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