A high-efficiency mixing and stirring device for pharmaceutical use

Abstract

The utility model discloses a kind of high-efficiency mixing stirring devices for pharmacy, including stirring device main body, moving assembly and quick-release assembly. The height of stirring device main body is adjusted by lifting mechanism drive mechanism and stirring shaft, adjustable moving assembly is equipped outside stirring shaft, and drive mechanism is connected between stirring shaft by quick-release assembly. Moving assembly includes moving ring and stirring rod, and the cooperation of eccentric extrusion arc edge and rotary plate realizes the quick adjustment of stirring rod height and quantity, adapts to the stirring demand of different raw material quantity, and improves stirring efficiency. Quick-release assembly uses the cooperation structure of chute and movable column, realizes the quick disassembly and replacement of stirring shaft, is convenient for cleaning and maintenance, avoids raw material cross contamination. The device passes through adjustable stirring rod and quick-release structure, effectively solves the problem that traditional mixer raw material is not contacted sufficiently and inconvenient to clean, with compact structure, flexible operation, maintenance is convenient and the like advantages.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical equipment technology, specifically to a high-efficiency mixing and stirring device for pharmaceutical applications. Background Technology

[0002] The mixing and stirring process in pharmaceutical production directly determines the uniformity of drug component distribution and quality stability. Although existing fixed stirring devices can achieve basic mixing functions, they generally suffer from process defects due to the inability to adjust the stirring height: when the raw material liquid level is low, the high-level stirring components run idle and fail; while when the liquid level is high, the initial number of stirring components is insufficient, which easily creates mixing dead zones. Publication number CN212915294U discloses a pharmaceutical mixing and stirring device, including a stirring drum. A rotating shaft is installed inside the stirring drum, and at least two sets of stirring blades are mounted on the rotating shaft. Each stirring blade includes a bushing embedded in the outside of the rotating shaft. Two first blades are fixed horizontally on the outside of the bushing, and a second blade is fixed at the end of each first blade. The first and second blades are perpendicular to each other. A third blade pointing vertically downwards is also fixed at the first blade. Through holes are provided on the first, second, and third blades. A motor is installed at the bottom of the stirring drum, and a diverter is connected to the output shaft of the motor. The diverter is connected to the lower end of the rotating shaft. This pharmaceutical mixing and stirring device has good mixing effect and high efficiency. However, this patent still has the following problems in actual use: First, the blade assembly is rigidly fixed to the rotating shaft by the bushing, making it impossible to adjust the stirring depth according to the real-time liquid level. Under low liquid level conditions, only a small number of blades at the bottom work effectively. Second, if the number of blades is increased or the size of the individual blades is reduced to adapt to high liquid levels, the proportion of blades running idle at low liquid levels will increase significantly, which will not only exacerbate energy waste but also damage the material properties due to ineffective shearing.

[0003] A high-efficiency mixing and stirring device for pharmaceutical applications is proposed to address the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency mixing and stirring device for pharmaceuticals, in order to solve the problem that although the existing fixed stirring devices mentioned in the background art can achieve basic mixing functions, they generally suffer from process defects caused by the inability to adjust the stirring height: when the raw material liquid level is low, the high-level stirring component runs idle and fails; while when the liquid level is high, the initial number of stirring components is insufficient and it is easy to form a mixing dead zone.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pharmaceutical high-efficiency mixing and stirring device, comprising a stirring device body, the stirring device body including a lifting mechanism, a driving mechanism fixedly installed on the movable part of the lifting mechanism, a stirring shaft installed on the output shaft of the driving mechanism, and a mixing cylinder provided below the driving mechanism; A quick-release assembly is provided between the output shaft of the drive mechanism and the stirring shaft, and several movable components are provided on the outside of the stirring shaft; The movable component includes a movable ring, with several stirring rods fixedly connected to the outer side of the movable ring. A connecting pipe is also symmetrically fixedly connected to the outer side of the movable ring. A clearance groove is symmetrically opened on the inner side of the movable ring. A movable column is slidably connected to the inner end of the connecting pipe near the movable ring. An installation shaft is rotatably connected to the other end of the connecting pipe. Pressure-bearing side plates are symmetrically fixedly connected to both sides of the movable column. Side grooves are symmetrically opened on the outer side of the connecting pipe. A rotating plate is fixedly connected to the end of the installation shaft extending out of the connecting pipe. An arc-shaped lifting plate is fixedly connected to the top of the two rotating plates.

[0006] Preferably, one side of the rotary plate is provided with an extrusion arc edge, the center of the extrusion arc edge does not coincide with the axis of the moving column, and the moving ring is slidably sleeved on the outside of the stirring shaft.

[0007] Preferably, a pressure groove is provided on one side of the pressure-bearing side plate, the pressure groove is fitted with the extrusion arc edge, and the pressure-bearing side plate is slidably connected to the side groove.

[0008] Preferably, the movable column slides through the movable ring and is fixedly connected to the clamping plate, and the clamping plate is slidably connected to the clearance groove.

[0009] Preferably, the quick-release assembly includes a docking sleeve, the docking sleeve having a docking groove at the center and circumferentially distributed inclined grooves inside, a movable column slidably connected inside the inclined grooves, round-headed blocks fixedly connected to both ends of the movable column, a spring fixedly connected to the top end of the docking sleeve, an output shaft of the drive mechanism fixedly connected to the docking sleeve, a control sleeve slidably fitted outside the output shaft of the drive mechanism, a circumferentially distributed guide groove inside the control sleeve, a docking block inserted into the docking groove, a mounting plate fixedly connected to the bottom of the docking block, and the bottom surface of the mounting plate fixedly connected to the top end of the stirring shaft.

[0010] Preferably, the outer side of the docking block is evenly provided with locking slots, one of the round-headed blocks is engaged with the locking slots, and the top of the spring is fixedly connected to the inner top surface of the control sleeve.

[0011] Preferably, the guide groove slides in contact with another rounded block, and the guide groove is configured from top to bottom as an abutment groove, a guide inclined groove, and an avoidance groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This pharmaceutical high-efficiency mixing and stirring device allows for flexible adjustment of the height and number of stirring rods in the moving component to adapt to different raw material quantities, improving stirring efficiency and device practicality; the quick-release component enables rapid disassembly and replacement of the stirring shaft, facilitating cleaning, avoiding cross-contamination, simplifying the installation process, and reducing production costs. The specific details are as follows: 1. By moving the component and lifting the arc-shaped lifting plate, the rotating plate and mounting shaft are driven to rotate. The eccentric design of the extrusion arc edge and the pressure-bearing side plate cleverly reduces the extrusion pressure between the relief groove and the stirring shaft, allowing the moving ring to slide freely on the stirring shaft. This allows the operator to quickly adjust the height and number of stirring rods according to the actual situation of the raw materials in the mixing drum, ensuring that the stirring rods can fully contact the raw materials and improve mixing efficiency. When the amount of raw materials is large and the mixing drum is high, the number of stirring rods can be quickly increased in advance to further enhance the mixing effect. This allows the device to adapt to the mixing needs of different raw material quantities and mixing drum heights, significantly improving the practicality and flexibility of the device.

[0013] 2. By lifting the control sleeve, utilizing the cooperation between the guide groove and the rounded block, as well as the guiding effect of the inclined groove on the moving column, the outward sliding of the moving column and the sliding of the rounded block out of the locking slot are achieved. This process allows the stirring shaft to be quickly removed from the drive mechanism, enabling operators to easily clean and replace the stirring shaft, effectively preventing residue on the stirring shaft from contaminating subsequent production. At the same time, the quick-release component design simplifies the installation process of the stirring shaft, improves the maintenance efficiency of the device, reduces production costs, and provides strong support for the efficient and safe operation of pharmaceutical production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the top surface structure of this utility model; Figure 2 This is a schematic diagram of the bottom structure of this utility model; Figure 3 This is a cross-sectional exploded view of the docking sleeve, control sleeve, and docking sleeve. Figure 4 This is a schematic diagram of the installation structure of the moving ring and the connecting pipe; Figure 5 This is a schematic diagram of the cross-sectional structure of the moving ring.

[0015] In the diagram: 1. Main body of the mixing device; 101. Lifting mechanism; 102. Drive mechanism; 103. Mixing shaft; 104. Mixing cylinder; 2. Moving component; 201. Moving ring; 202. Mixing rod; 203. Alternating groove; 204. Connecting pipe; 205. Side groove; 206. Mounting shaft; 207. Moving column; 208. Pressure-bearing side plate; 2081. Pressure groove; 209. Clamping plate; 210. Rotary plate 2101. Extruded curved edge; 211. Curved lifting plate; 3. Quick-release assembly; 301. Connecting sleeve; 302. Inclined groove; 303. Connecting slot; 304. Moving column; 305. Round head block; 306. Spring; 307. Control sleeve; 308. Guide slot; 3081. Abutment slot; 3082. Guide inclined groove; 3083. Avoidance slot; 309. Connecting block; 310. Locking port; 311. Mounting plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 The present invention provides a technical solution: a pharmaceutical high-efficiency mixing and stirring device, including a stirring device body 1, the stirring device body 1 including a lifting mechanism 101, a driving mechanism 102 fixedly installed on the movable part of the lifting mechanism 101, a stirring shaft 103 installed on the output shaft of the driving mechanism 102, and a mixing cylinder 104 provided below the driving mechanism 102. A quick-release assembly 3 is provided between the output shaft of the drive mechanism 102 and the stirring shaft 103. Several moving components 2 are provided on the outside of the stirring shaft 103. The lifting mechanism 101 adjusts the position of the drive mechanism 102, and the output shaft of the drive mechanism 102 can rotate, thereby causing the stirring shaft 103 to rotate.

[0018] The moving component 2 includes a moving ring 201, with several stirring rods 202 fixedly connected to the outer side of the moving ring 201. A connecting pipe 204 is also symmetrically fixedly connected to the outer side of the moving ring 201. A clearance groove 203 is symmetrically opened on the inner side of the moving ring 201. A moving column 207 is slidably connected to one end of the connecting pipe 204 near the moving ring 201. An installation shaft 206 is rotatably connected to the other end of the connecting pipe 204. Pressure-bearing side plates 208 are symmetrically fixedly connected to both sides of the moving column 207. Side grooves 205 are symmetrically opened on the outer side of the connecting pipe 204. A rotating plate 210 is fixedly connected to one end of the mounting shaft 206 extending out of the connecting pipe 204. An arc-shaped lifting plate 211 is fixedly connected to the top of the two rotating plates 210. The stirring rods 202 can be curved, straight, or blade-shaped, and the moving ring 201 with the most suitable shape of the stirring rod 202 can be selected and installed according to different raw materials.

[0019] A pressing arc edge 2101 is provided on one side of the rotary plate 210. The center of the arc edge 2101 does not coincide with the axis of the moving column 207. The moving ring 201 is slidably sleeved on the outside of the stirring shaft 103. By lifting the arc-shaped lifting plate 211, the arc-shaped lifting plate 211 drives the rotary plate 210 to rotate, thereby causing the mounting shaft 206 to rotate. Through the eccentric design of the mounting shaft 206 and the pressing arc edge 2101, the distance between the pressing arc edge 2101 and the pressure-bearing side plate 208 is reduced, thereby reducing the thrust of the pressure-bearing side plate 208 on the relief groove 203 through the moving column 207, and finally reducing the thrust of the relief groove 203 on the relief groove 208. The reduced pressure between the 3rd and 4th stirring shafts 103 allows the moving rings 201 to slide freely on the stirring shafts 103, enabling rapid adjustment of their height and number. This is especially useful when using small and medium-sized mixers in the laboratory, where varying amounts of raw materials in the mixing drum 104 can prevent the stirring rods 202 from fully contacting the materials. In cases where the material height is insufficient, the stirring shaft 103 may cause the stirring rods 202 to idle, thus increasing mixing efficiency. Furthermore, when there are many raw materials and the mixing drum 104 is high, the number of stirring rods 202 can be quickly increased beforehand, further enhancing mixing efficiency and making the machine more flexible in use.

[0020] A pressure groove 2081 is provided on one side of the pressure-bearing side plate 208. The pressure groove 2081 is fitted with the extrusion arc edge 2101, and the pressure-bearing side plate 208 is slidably connected to the side groove 205. When the extrusion arc edge 2101 is fully inserted into the pressure groove 2081, the reaction force of the pressure-bearing side plate 208 on the rotating plate 210 is perpendicular to the axis of the mounting shaft 206, so that the rotating plate 210 is stuck and cannot rotate freely.

[0021] The movable column 207 slides through the movable ring 201 and is fixedly connected to the clamping plate 209. The clamping plate 209 is slidably connected to the clearance groove 203. One side of the clamping plate 209 is arc-shaped and has been surface treated to increase its friction coefficient, thereby firmly clamping the stirring shaft 103.

[0022] The quick-release assembly 3 includes a docking sleeve 301. The docking sleeve 301 has a centrally located docking groove 303 and circumferentially distributed inclined grooves 302 inside. A movable column 304 is slidably connected inside the inclined grooves 302. Round head blocks 305 are fixedly connected to both ends of the movable column 304. A spring 306 is fixedly connected to the top of the docking sleeve 301. The output shaft of the drive mechanism 102 is fixedly connected to the docking sleeve 301. A control sleeve 307 is slidably fitted outside the output shaft of the drive mechanism 102. A circumferentially distributed guide groove 308 is opened inside the control sleeve 307. A docking block 309 is inserted into the docking groove 303. A mounting plate 311 is fixedly connected to the bottom of the docking block 309. The bottom surface of the mounting plate 311 is fixedly connected to the top of the stirring shaft 103. By lifting the control sleeve 307, it moves vertically upwards on the output shaft of the drive mechanism 102. At this time, the spring 306 is stretched, and the round head blocks 305 outside the docking sleeve 301 slide against the guide grooves 308. Due to the inclined design of the sloping groove 302, the movable column 304 tends to slide outward. As the guide groove 308 moves upward, the round-headed block 305 fits against the guide groove 308, first sliding from the docking sleeve 301 into the sloping groove 302. During the sliding process of the sloping groove 302, the movable column 304 has a tendency or action to slide outward within the sloping groove 302. When the control sleeve 307 is pulled up to its highest point, the movable column 304 slides out of the sloping groove 302, simultaneously allowing the other round-headed block 305 to... It can slide out from the locking port 310. At this time, pull down the stirring shaft 103, so that the docking block 309 moves down in the docking groove 303. With the hemispherical surface of the locking port 310, the round head block 305 stuck in the locking port 310 will also automatically avoid being squeezed out. Finally, the stirring shaft 103 can be quickly replaced, and the stirring shaft 103 can be quickly disassembled, replaced and cleaned to avoid the residue of the previous raw material on the stirring shaft 103 contaminating the subsequent production when stirring different raw materials.

[0023] The outer side of the docking block 309 is evenly provided with locking slots 310, a round-headed block 305 is engaged with the locking slots 310, and the top of the spring 306 is fixedly connected to the inner top surface of the control sleeve 307.

[0024] The guide groove 308 slides in contact with another round head block 305. The guide groove 308 is configured from top to bottom as a stop groove 3081, a guide inclined groove 3082, and a clearance groove 3083.

[0025] Working principle: Before using this high-efficiency mixing and stirring device for pharmaceuticals, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5 As shown, the lifting mechanism 101 can adjust the height of the drive mechanism 102 and the stirring shaft 103 to accommodate mixing drums 104 of different heights.

[0026] When it is necessary to adjust the position and number of stirring rods 202 according to the amount of raw materials in the mixing drum 104, the arc-shaped lifting plate 211 is lifted, which drives the rotating plate 210 and the mounting shaft 206 to rotate. By utilizing the eccentric design of the extrusion arc edge 2101 and the pressure side plate 208, the thrust of the pressure side plate 208 on the relief groove 203 through the moving column 207 is reduced, thereby reducing the extrusion pressure between the relief groove 203 and the stirring shaft 103. This allows the moving ring 201 to slide freely on the stirring shaft 103, or even detach from the bottom of the stirring shaft 103, thus achieving rapid adjustment of the height and number of stirring rods 202 on the stirring shaft 103.

[0027] When the stirring shaft 103 needs to be replaced, the control sleeve 307 is lifted, causing it to move vertically upward on the output shaft of the drive mechanism 102. The spring 306 is stretched, and the round head block 305 slides against the guide groove 308. The movable column 304 slides outward in the inclined groove 302. When the control sleeve 307 is pulled up to its highest point, the movable column 304 slides out of the inclined groove 302, and another round head block 305 slides out of the locking port 310. At this time, the stirring shaft 103 is pulled down, and the docking block 309 moves down in the docking groove 303. The round head block 305, which is stuck in the locking port 310, automatically avoids being squeezed out, thus completing the quick disassembly and replacement of the stirring shaft 103. This avoids cleaning taking up the normal working time of the equipment and facilitates rinsing and cleaning.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pharmaceutical high-efficiency mixing and stirring device, comprising a stirring device body (1), the stirring device body (1) comprising a lifting mechanism (101), a driving mechanism (102) fixedly mounted on the movable part of the lifting mechanism (101), a stirring shaft (103) mounted on the output shaft of the driving mechanism (102), and a mixing cylinder (104) provided below the driving mechanism (102). Its features are, Also includes: A quick-release assembly (3) is provided between the output shaft of the drive mechanism (102) and the stirring shaft (103), and several moving components (2) are provided on the outside of the stirring shaft (103). The moving component (2) includes a moving ring (201), a plurality of stirring rods (202) are fixedly connected to the outer side of the moving ring (201), and a connecting pipe (204) is symmetrically fixedly connected to the outer side of the moving ring (201). A clearance groove (203) is symmetrically opened on the inner side of the moving ring (201). A moving column (207) is slidably connected to one end of the connecting pipe (204) near the moving ring (201). An installation shaft (206) is rotatably connected to the other end of the connecting pipe (204). A pressure-bearing side plate (208) is symmetrically fixedly connected to both sides of the moving column (207). A side groove (205) is symmetrically opened on the outer side of the connecting pipe (204). A rotating plate (210) is fixedly connected to one end of the mounting shaft (206) extending out of the connecting pipe (204). An arc-shaped lifting plate (211) is fixedly connected to the top of the two rotating plates (210).

2. The pharmaceutical high-efficiency mixing and stirring device according to claim 1, characterized in that: The rotary plate (210) has an extrusion arc edge (2101) on one side. The center of the arc of the extrusion arc edge (2101) does not coincide with the axis of the moving column (207). The moving ring (201) is slidably sleeved on the outside of the stirring shaft (103).

3. The pharmaceutical high-efficiency mixing and stirring device according to claim 1, characterized in that: A pressure groove (2081) is provided on one side of the pressure-bearing side plate (208), the pressure groove (2081) is fitted with the extrusion arc edge (2101), and the pressure-bearing side plate (208) is slidably connected with the side groove (205).

4. The pharmaceutical high-efficiency mixing and stirring device according to claim 1, characterized in that: The movable column (207) slides through the movable ring (201) and is fixedly connected to the clamping plate (209), and the clamping plate (209) is slidably connected to the clearance groove (203).

5. The pharmaceutical high-efficiency mixing and stirring device according to claim 1, characterized in that: The quick-release assembly (3) includes a docking sleeve (301), which has a docking groove (303) at the center and a circumferentially distributed inclined groove (302) inside. A movable column (304) is slidably connected inside the inclined groove (302), and round head blocks (305) are fixedly connected to both ends of the movable column (304). A spring (306) is fixedly connected to the top of the docking sleeve (301). The output shaft of the drive mechanism (102) is fixedly connected to the docking sleeve (301). A control sleeve (307) is slidably sleeved outside the output shaft of the drive mechanism (102). A guide groove (308) is circumferentially distributed inside the control sleeve (307). A docking block (309) is inserted into the docking groove (303). An installation plate (311) is fixedly connected to the bottom of the docking block (309). The bottom surface of the installation plate (311) is fixedly connected to the top of the stirring shaft (103).

6. The pharmaceutical high-efficiency mixing and stirring device according to claim 5, characterized in that: The docking block (309) has evenly spaced slots (310) on its outer side. One of the round-headed blocks (305) engages with the slot (310). The top of the spring (306) is fixedly connected to the inner top surface of the control sleeve (307).

7. The pharmaceutical high-efficiency mixing and stirring device according to claim 5, characterized in that: The guide groove (308) slides in contact with another round head block (305), and the guide groove (308) is configured from top to bottom as an abutment groove (3081), a guide inclined groove (3082), and a clearance groove (3083).

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