Efficient medicine crushing and mixing device

Abstract

The utility model discloses an efficient medicine smashing and mixing device which comprises a mixing cylinder, a screening box and a smashing box, a first motor is assembled at the bottom of the mixing cylinder, a vertical rod is rotatably installed at the output end, stretching into the mixing cylinder, of the first motor, a plurality of stirring blades are installed on the outer side of the vertical rod in an equidistant array mode, and a plurality of scraping plates are further installed on the outer side of the vertical rod in an array mode. The knocking assembly is additionally arranged at the bottom of the screen, the screen is prevented from being blocked in the screening process, the screen is detachably installed, the screen can be replaced according to the use requirement subsequently, screened medicine is smashed through the second motor, the gear, the rotating rod and the smashing roller, and the conveying pump, the first connecting pipe and the second connecting pipe are used for conveying the medicine to the screening machine. The crushed medicine enters the screen again to be screened, repeated crushing is carried out, manual operation is reduced, the scraping plate attached to the mixing barrel is adopted to clean the inner wall of the mixing barrel, and compared with a soft brush, cleaning is more thorough, and residues can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drug processing, in particular to an efficient drug crushing and mixing device. Background Technique

[0002] Medicinal materials are raw materials for making medicines. In China, they especially refer to traditional Chinese medicinal materials, that is, raw materials of traditional Chinese medicine that have not been processed or made into finished products. In the processing of medicinal materials, it is often necessary to roughly crush the medicinal materials, and then perform fine processing when the crushed medicinal materials are mixed.

[0003] Chinese patent with the authorization publication number: CN218422477U, a drug crushing and mixing device, includes a mixing box. The mixing box includes a box body with an upward opening and a box cover connected to the box body. A feeding port is provided at the top of the mixing box. An installation frame is fixedly installed at the top of the mixing box. The installation frame is located above the feeding port. A crushing mechanism is installed on the installation frame. A sieve plate is provided between the crushing mechanism and the feeding port. A stirring mechanism is installed on the mixing box. The stirring mechanism includes horizontally arranged stirring blades. The stirring blades are arranged inside the mixing box. A cleaning mechanism is provided at the edge of the stirring blades. The cleaning mechanism is in contact with the inner wall of the mixing box. The advantages of this drug crushing and mixing device include low cost, high efficiency, and low noise, and it is suitable for use in hospital pharmacies.

[0004] In the crushing mechanism used in the above technology, when crushing a large amount of drugs, the phenomenon of incomplete crushing is likely to occur, and manual feeding is required, which consumes a lot of manpower. Moreover, the sieve plate is fixedly installed, and when powders of different particle sizes are needed, the size of the sieve mesh holes cannot be changed. In the cleaning mechanism used in the above technology, when encountering powders with a higher humidity, they are likely to adhere to the inner wall of the mixing box to form lumps, and it is difficult for the brush installed by the spring to clean the lumps, and residues are likely to be generated. Content of the Utility Model

[0005] The purpose of the utility model is to provide an efficient drug crushing and mixing device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An efficient drug crushing and mixing device includes a mixing cylinder, a screening box, and a crushing box. A motor one is assembled at the bottom of the mixing cylinder. The output end of the motor one extending into the mixing cylinder is rotatably installed with a vertical rod. A plurality of stirring blades are equidistantly and arrayedly installed on the outer side of the vertical rod. A plurality of scraping plates are also arrayedly installed on the outer side of the vertical rod.

[0007] The screening box is installed at the top of the mixing cylinder. One end inside the screening box is hinged with a mounting frame. A screen is installed inside the mounting frame through a positioning component. The bottom end of the mounting frame near the hinge point is elastically connected to the inner wall of the screening box through a first spring. A knocking component is provided at the bottom end of the mounting frame away from the hinge point.

[0008] The knocking component includes a rotating rod. The rotating rod is rotatably installed on one side inside the screening box. A transmission rod is installed on the other side of the rotating rod. One end of the transmission rod away from the rotating rod is rotatably installed with a slider. The outer side of the slider is slidably connected with a sliding plate. A knocking block is installed on the top of the sliding plate. The top end of the knocking block is in pressing contact with the bottom end of the mounting frame away from the hinge point.

[0009] As a further preferred embodiment of this technical solution, the top end of the vertical rod is rotatably connected to the inner top of the mixing cylinder. The outer side of the scraping plate is attached to the inner wall of the mixing cylinder. The inner side of the scraping plate is connected to the end of the stirring blade away from the vertical rod. An outlet pipe is connected to the eccentric position at the bottom end of the mixing cylinder. An electric valve is provided on the outlet pipe.

[0010] As a further preferred embodiment of this technical solution, the positioning component is composed of a second spring and a positioning block. Grooves are opened at both ends of the bottom of the mounting frame. The positioning blocks are elastically connected in the grooves through the second spring. The shape of the positioning block is an inverted L shape. Positioning grooves adapted to the size of the positioning blocks are provided at both ends of the screen.

[0011] As a further preferred embodiment of this technical solution, the crushing box is installed at one end of the screening box. Two rotating rollers are symmetrically and rotatably installed inside the crushing box. Crushing rollers are fixedly sleeved on the outer sides of the two rotating rollers. Gears that mesh with each other are installed on one side of the two rotating rollers extending out of the crushing box. A second motor is assembled on one side of the crushing box. The output end of the second motor is connected to one side of one of the rotating rollers.

[0012] As a further preferred embodiment of this technical solution, belt pulleys are installed on the other side of one of the rotating rollers extending out of the crushing box and on the side of the rotating rod extending out of the screening box. A belt is tensioned and sleeved on the outer sides of the two belt pulleys.

[0013] As a further preferred embodiment of this technical solution, a hopper is opened at the top of the screening box. The hopper is located at the top end of the mounting frame near the hinge point. An outlet is provided on the side where the screening box and the mixing cylinder are attached.

[0014] As a further preferred embodiment of this technical solution, a recovery hole is opened at one end where the screening box and the crushing box are attached. An auxiliary plate is installed at the bottom of the recovery hole. One end of the auxiliary plate is located at the bottom of the end of the mounting frame away from the hinge point. The other end of the auxiliary plate is located at the top between the two crushing rollers.

[0015] As a further preference of the present technical solution, a delivery pump is assembled on the top of the screening box. The input end of the delivery pump is connected with a first connecting pipe, and the end of the first connecting pipe away from the delivery pump communicates with the bottom end of the crushing box. The output end of the delivery pump is connected with a second connecting pipe, and the end of the second connecting pipe away from the delivery pump communicates with the top end of the screening box.

[0016] The utility model provides an efficient drug crushing and mixing device, which has the following beneficial effects:

[0017] The utility model first screens the drugs through a sieve mesh. A knocking component is added at the bottom of the sieve mesh to avoid blockage of the sieve mesh during the screening process. And the sieve mesh is installed in a detachable manner, and the sieve mesh can be replaced according to the use requirements later. Through the second motor, gears, rotating rods and crushing rollers, the screened drugs are crushed. Through the delivery pump, the first connecting pipe and the second connecting pipe, the crushed drugs enter the sieve mesh again for screening, and are crushed repeatedly for many times, reducing manual operation. The inner wall of the mixing cylinder is cleaned by a scraper attached to the mixing cylinder. Compared with a relatively soft brush, the cleaning is more thorough and can avoid residues. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the utility model;

[0019] Figure 2 is the internal structural sectional view of the mixing cylinder of the utility model;

[0020] Figure 3 is the rear view of the structures of the screening box and the crushing box of the utility model;

[0021] Figure 4 is of the utility model Figure 1 magnified view of the structure at A therein;

[0022] Figure 5 is the internal structural sectional view of the screening box and the crushing box of the utility model;

[0023] Figure 6 is of the utility model Figure 5 magnified view of the structure at B therein.

[0024] In the figure: 1. Mixing cylinder; 101. Discharge pipe; 2. Screening box; 201. Hopper; 3. Crushing box; 4. First motor; 5. Vertical rod; 6. Stirring blade; 7. Scraper; 8. Roller; 9. Second motor; 10. Gear; 11. Rotating rod; 12. Pulley; 13. Belt; 14. Crushing roller; 15. Delivery pump; 16. First connecting pipe; 17. Second connecting pipe; 18. Transmission rod; 19. Slide block; 20. Slide plate; 21. Knocking block; 22. Installation frame; 23. Sieve mesh; 24. First spring; 25. Auxiliary plate; 26. Second spring; 27. Positioning block. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] The following describes the specific embodiments of the present utility model with reference to the accompanying drawings

[0027] As Figure 1 and Figure 2 shown, an efficient drug crushing and mixing device includes a mixing cylinder 1, a screening box 2 and a crushing box 3. A motor 1 is assembled at the bottom of the mixing cylinder 1. The output end of the motor 1 extending into the interior of the mixing cylinder 1 is rotatably installed with a vertical rod 5. The top end of the vertical rod 5 is rotatably connected to the top inside the mixing cylinder 1. The vertical rod 5 is located at the center inside the mixing cylinder 1. A plurality of stirring blades 6 are equidistantly arranged in an array on the outer side of the vertical rod 5. Through the plurality of stirring blades 6, the drugs are fully mixed, improving the drug mixing efficiency. A plurality of scraping plates 7 are also arranged in an array on the outer side of the vertical rod 5. The outer side of the scraping plate 7 is attached to the inner wall of the mixing cylinder 1. The inner side of the scraping plate 7 is connected to the end of the stirring blade 6 far from the vertical rod 5. The residues on the inner wall of the mixing cylinder 1 are scraped off by the scraping plate 7 to realize the cleaning of the residues. An outlet pipe 101 is connected to the eccentric position at the bottom end of the mixing cylinder 1. An electric valve is provided on the outlet pipe 101. The drugs mixed inside the mixing cylinder 1 are discharged through the outlet pipe 101.

[0028] As Figure 1 and Figure 5 shown, the screening box 2 is installed on the top of the mixing cylinder 1. A box door is provided on one side of the screening box 2, and the box door corresponds to the position of the screen 23, which is convenient for replacing the screen 23 subsequently. One end inside the screening box 2 is hinged with a mounting frame 22. The end of the mounting frame 22 far from the hinge point is inclined downward, increasing the gravity of the drugs on the screen 23 to make the drugs roll on the screen 23. The inner side of the mounting frame 22 is installed with a screen 23 through a positioning component. The bottom end of the mounting frame 22 close to the hinge point is elastically connected to the inner wall of the screening box 2 through a first spring 24. The inclination angle of the mounting frame 22 is limited by the first spring 24 to realize the return of the mounting frame 22 after rotating upward.

[0029] As Figure 2 and Figure 5 ​As shown in the figure, a hopper 201 is provided at the top of the screening box 2. A cover is hinged to the top of the hopper 201. By closing the cover of the hopper 201, it is possible to prevent dust from escaping from the hopper 201 during mixing. The hopper 201 is located at the top of the mounting frame 22 near the hinge point. An outlet is provided on the side of the screening box 2 that is in contact with the mixing cylinder 1. The additional description of the position of the hopper 201 enables the medicine entering the screening box 2 from the hopper 201 to fall on the highest point of the sieve mesh 23, increasing the contact time between the medicine and the sieve mesh 23, and enabling the medicine to be better screened by the sieve mesh 23.

[0030] As Figure 5 shown in the figure, a knocking component is provided at the bottom end of the mounting frame 22 away from the hinge point. The knocking component includes a rotating rod 11. The rotating rod 11 is rotatably installed on one side inside the screening box 2. A transmission rod 18 is installed on the other side of the rotating rod 11. One end of the transmission rod 18 away from the rotating rod 11 is rotatably installed with a slider 19. The outer side of the slider 19 is slidably connected to a sliding plate 20. A connecting rod is slidably installed on the outer side of the sliding plate 20. The connecting rod is fixedly connected to the other side of the screening box 2, which plays a role in limiting the sliding plate 20, enabling the sliding plate 20 to only slide up and down. A knocking block 21 is installed on the top of the sliding plate 20. The top end of the knocking block 21 is in pressing contact with the bottom end of the mounting frame 22 away from the hinge point. In actual use, a rubber sheet can be pasted on the top end of the knocking block 21 to reduce the wear caused by contact with the mounting frame 22. When the sliding plate 20 slides upward, the knocking block 21 abuts against the mounting frame 22, driving the mounting frame 22 to rotate upward. When the sliding plate 20 slides downward, the knocking block 21 is not in contact with the mounting frame 22, and the mounting frame 22 is limited by the first spring 24 to slide downward, causing the mounting frame 22 to swing reciprocally, and the sieve mesh 23 swings reciprocally under the influence of the mounting frame 22.

[0031] As Figure 6 shown in the figure, in this embodiment, specifically: the positioning component is composed of a second spring 26 and a positioning block 27. Grooves are provided at both ends of the bottom of the mounting frame 22. The positioning blocks 27 are elastically connected in the grooves through the second spring 26. The shape of the positioning block 27 is an inverted L shape. Positioning grooves adapted to the size of the positioning blocks 27 are provided at both ends of the sieve mesh 23. The contact area between the sieve mesh 23 and the positioning blocks 27 is increased through the positioning grooves, increasing the stability of the sieve mesh 23.

[0032] As Figures 3 - 5As shown in the figure, in this embodiment, specifically: The crushing box 3 is installed at one end of the screening box 2. Inside the crushing box 3, two rotating rollers 8 are symmetrically and rotatably installed. On the outer sides of the two rotating rollers 8, crushing rollers 14 are fixedly sleeved. There is a gap for crushing drugs between the two crushing rollers 14. On one side of the two rotating rollers 8 extending out of the crushing box 3, gears 10 that mesh with each other are installed. Through the two meshing gears 10, the two rotating rollers 8 rotate synchronously and in opposite directions. On one side of the crushing box 3, a second motor 9 is assembled. The output end of the second motor 9 is connected to one side of one of the rotating rollers 8. On the other side of the other rotating roller 8 extending out of the crushing box 3 and on the side of the rotating rod 11 extending out of the screening box 2, pulleys 12 are installed. A belt 13 is tensioned and sleeved outside the two pulleys 12. Through the gears 10, pulleys 12 and belt 13, the rotation of the two rotating rollers 8 and one rotating rod 11 is realized.

[0033] As Figure 5 shown in the figure, in this embodiment, specifically: At the end where the screening box 2 and the crushing box 3 are in contact, a recovery hole is opened. At the bottom of the recovery hole, an auxiliary plate 25 is installed. One end of the auxiliary plate 25 is located at the bottom of the end of the installation frame 22 away from the hinge point, and the other end of the auxiliary plate 25 is located at the top between the two crushing rollers 14. The auxiliary plate 25 plays a role in changing the rolling direction of the drugs, enabling larger particles of drugs to smoothly fall into the gap between the two crushing rollers 14.

[0034] As Figure 5 shown in the figure, in this embodiment, specifically: A delivery pump 15 is assembled on the top of the screening box 2. The input end of the delivery pump 15 is connected to a first connecting pipe 16. The end of the first connecting pipe 16 away from the delivery pump 15 communicates with the bottom end of the crushing box 3. The output end of the delivery pump 15 is connected to a second connecting pipe 17. The end of the second connecting pipe 17 away from the delivery pump 15 communicates with the top end of the screening box 2. Through the first connecting pipe 16, the second connecting pipe 17 and the delivery pump 15, the drugs crushed inside the crushing box 3 re-enter the sieve 23 for screening, reducing manual operation.

[0035] Working principle: When in use, first start motor two 9 and motor one 4. Motor two 9 drives one of the rollers 8 to rotate. One of the rollers 8 drives the other roller 8 to rotate through the gear 10. The other roller 8 drives the rotating rod 11 to rotate through the pulley 12 and the belt 13. The rotating rod 11 drives the transmission rod 18 to rotate. The transmission rod 18 drives the slider 19 to rotate. The slider 19 drives the slide plate 20 to slide up and down reciprocally. When the slide plate 20 slides upward, the knocking block 21 abuts against the mounting frame 22, driving the mounting frame 22 to rotate upward. When the slide plate 20 slides downward, the knocking block 21 does not contact the mounting frame 22, and the mounting frame 22 slides downward under the limitation of the first spring 24, causing the mounting frame 22 to swing reciprocally. The screen 23 swings reciprocally under the influence of the mounting frame 22. Open the end cover of the hopper 201, pour the medicine into the hopper 201, and the medicine that enters the inside of the screening box 2 through the hopper 201 falls on the screen 23. The screened medicine falls into the mixing cylinder 1 through the mesh holes of the screen 23. The larger medicine falls on the auxiliary plate 25 under the vibration force of the screen 23 and the mounting frame 22 and enters the crushing box 3, and is crushed by the extrusion of the two crushing rollers 14. Then start the delivery pump 15, and the crushed medicine falls on the screen 23 again through the first connecting pipe 16 and the second connecting pipe 17 to repeat the above operation for screening and crushing. Motor one 4 drives the vertical rod 5 to rotate. The vertical rod 5 drives the stirring blade 6 to rotate to stir the medicine. The vertical rod 5 also drives the scraper 7 to rotate, so that the medicine on the inner wall of the mixing cylinder 1 falls off to avoid residue. When the screen 23 needs to be replaced, turn off motor one 4, open the door of the screening box 2, squeeze the two positioning blocks 27 towards the mutually distant ends, so that the positioning blocks 27 are separated from the positioning grooves of the screen 23, and the screen 23 falls off without being limited by the positioning blocks 27. Take out the screen 23 for replacement, and then release the force applied to the positioning blocks 27. At this time, the positioning blocks 27 are stuck in the positioning grooves of the screen 23 by the thrust of the second spring 26 for fixation, thus completing the replacement.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient drug crushing and mixing device, comprising a mixing cylinder (1), a screening box (2) and a crushing box (3), characterized in that: A first motor (4) is assembled at the bottom of the mixing cylinder (1). A vertical rod (5) is rotatably installed at the output end of the first motor (4) extending into the interior of the mixing cylinder (1). A plurality of stirring blades (6) are equidistantly and arrayedly installed on the outer side of the vertical rod (5). A plurality of scraping plates (7) are also arrayedly installed on the outer side of the vertical rod (5). The screening box (2) is installed on the top of the mixing cylinder (1). One end inside the screening box (2) is hinged with a mounting frame (22). A sieve mesh (23) is installed inside the mounting frame (22) through a positioning assembly. The bottom end of the mounting frame (22) near the hinge point is elastically connected to the inner wall of the screening box (2) through a first spring (24). A knocking assembly is provided at the bottom end of the mounting frame (22) away from the hinge point. The knocking assembly includes a rotating rod (11). The rotating rod (11) is rotatably installed on one side inside the screening box (2). A transmission rod (18) is installed on the other side of the rotating rod (11). One end of the transmission rod (18) away from the rotating rod (11) is rotatably installed with a slider (19). The outer side of the slider (19) is slidably connected with a sliding plate (20). A knocking block (21) is installed on the top of the sliding plate (20). The top end of the knocking block (21) is in pressing contact with the bottom end of the mounting frame (22) away from the hinge point.

2. An efficient drug crushing and mixing device according to claim 1, characterized in that: The top end of the vertical rod (5) is rotatably connected to the top inside the mixing cylinder (1). The outer side of the scraping plate (7) is attached to the inner wall of the mixing cylinder (1). The inner side of the scraping plate (7) is connected to one end of the stirring blade (6) away from the vertical rod (5). An outlet pipe (101) is connected to the eccentric position at the bottom end of the mixing cylinder (1). An electric valve is provided on the outlet pipe (101).

3. An efficient drug crushing and mixing device according to claim 1, characterized in that: The positioning assembly consists of a second spring (26) and positioning blocks (27). Grooves are formed at both ends of the bottom of the mounting frame (22). The positioning blocks (27) are elastically connected inside the grooves through the second spring (26). The shape of the positioning blocks (27) is an inverted L shape. Positioning grooves adapted to the sizes of the positioning blocks (27) are provided at both ends of the sieve mesh (23).

4. An efficient drug crushing and mixing device according to claim 1, characterized in that: The crushing box (3) is installed at one end of the screening box (2). Two rotating rollers (8) are symmetrically and rotatably installed inside the crushing box (3). Crushing rollers (14) are fixedly sleeved on the outer sides of the two rotating rollers (8). Gears (10) that mesh with each other are installed on one side of the two rotating rollers (8) extending out of the crushing box (3). A second motor (9) is assembled on one side of the crushing box (3). The output end of the second motor (9) is connected to one side of one of the rotating rollers (8).

5. An efficient drug crushing and mixing device according to claim 4, characterized in that: Pulley wheels (12) are installed on the other side of the other rotating roller (8) extending out of the crushing box (3) and on the side of the rotating rod (11) extending out of the screening box (2). A belt (13) is tensionedly sleeved on the outer sides of the two pulley wheels (12).

6. The high-efficiency drug crushing and mixing device according to claim 1, characterized in that: A hopper (201) is formed at the top of the screening box (2). The hopper (201) is located at the top end of the mounting frame (22) near the hinge point. An outlet opening is provided on the side where the screening box (2) is attached to the mixing cylinder (1).

7. An efficient drug crushing and mixing device according to claim 1, characterized in that: One end where the screening box (2) and the crushing box (3) are attached is provided with a recovery hole, and an auxiliary plate (25) is installed at the bottom of the recovery hole. One end of the auxiliary plate (25) is located at the bottom of the installation frame (22) away from the hinge point, and the other end of the auxiliary plate (25) is located at the top between the two crushing rollers (14).

8. An efficient drug crushing and mixing device according to claim 1, characterized in that: A delivery pump (15) is assembled at the top of the screening box (2). The input end of the delivery pump (15) is connected with a first connecting pipe (16). One end of the first connecting pipe (16) away from the delivery pump (15) is communicated with the bottom end of the crushing box (3). The output end of the delivery pump (15) is connected with a second connecting pipe (17). One end of the second connecting pipe (17) away from the delivery pump (15) is communicated with the top end of the screening box (2).

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