Mixing equipment for medicine powder production

Abstract

The utility model relates to the technical field of medicine powder mixing, in particular to medicine powder production mixing equipment which comprises a four-column support frame, a chute round sleeve is fixedly connected to the lower end of the four-column supporting frame, and the vertical groove impeller is rotationally connected to the interior of the chute round sleeve; when the first driving gear rotates, the driven gear rotates, so that the vertical groove impeller and the drainage blade rotate at a high speed through the driving shaft while raw materials in the stirring barrel are turned up and down through the rotation of the spiral blades, and a double-spiral stirring structure formed by the two spiral blades is formed through the vertical groove impeller and the drainage blade; the raw materials in the middle shaft area are sucked downwards, one part of the raw materials in the vertical groove impeller penetrate through a chute in a chute round sleeve and a vertical groove in the vertical groove impeller to be cast all around due to centrifugal force, and the other part of the raw materials move downwards and are dispersed through flow guiding of a conical flow dividing column. And meanwhile, the rotary cover also rotates, so that the two spiral blades revolve while rotating.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical powder mixing technology, and in particular to pharmaceutical powder production mixing equipment. Background Technology

[0002] Pharmaceutical powder mixing equipment is a core piece of equipment in the pharmaceutical industry. It is mainly used to uniformly mix various drug powders (including active pharmaceutical ingredients and excipients such as fillers, disintegrants, lubricants, etc.) to ensure the consistency and stability of drug components.

[0003] During the mixing process, a double-helix stirring structure is adopted. Through the combined motion of revolution and rotation, the powder can be rotated, stirred and tumbled. However, due to the contact blind zone of the helical blades in the middle shaft area of ​​the mixing tank, the raw materials in this area are not subjected to sufficient stirring force, which affects the uniformity of the powder mixing and prolongs the mixing time.

[0004] Therefore, in view of the fact that the existing pharmaceutical powder mixing equipment has a contact blind zone in the middle shaft area of ​​the mixing tank due to the spiral blades, resulting in insufficient stirring force of the raw materials in this area, which affects the mixing uniformity and prolongs the mixing time, an improved pharmaceutical powder production mixing equipment can be designed to improve the mixing efficiency. Utility Model Content

[0005] To overcome the problem that although a stirring device with a double-helix stirring structure can achieve rotational stirring and up-and-down tumbling of the powder during the powder mixing process, the central shaft area of ​​the double-helix stirring structure has a contact blind zone, resulting in insufficient stirring force on the raw materials in this area, which affects the uniformity of mixing and prolongs the mixing time.

[0006] The technical solution of this utility model is as follows: a powder production mixing device, including a four-column support frame; it also includes a vertical groove impeller and a spiral blade. A slanted groove sleeve is fixedly connected to the lower end of the four-column support frame. The vertical groove impeller is rotatably connected inside the slanted groove sleeve. A flow-guiding blade is fixedly connected to the bottom end of the inner side of the vertical groove impeller. A drive shaft is fixedly connected to the upper end of the flow-guiding blade. A first drive gear is fixedly connected to the upper end face of the drive shaft. Driven gears mesh on both sides of the first drive gear. A spiral blade for stirring raw materials is fixedly connected to the lower end of the driven gear. A rotating cover that is rotatably connected to the drive shaft and the spiral blade is provided at the lower end of the first drive gear.

[0007] Preferably, the radius of the first driving gear is smaller than that of the driven gear. Therefore, when the first driving gear rotates, it causes the driven gear to rotate at a slower speed. This allows the material inside the mixing tank to tumble up and down while the spiral blades rotate, and the vertical groove impeller and guide vanes rotate at high speed via the drive shaft. The vertical groove impeller and guide vanes draw the material in the middle shaft area of ​​the double spiral mixing structure formed by the two spiral blades downward. Due to centrifugal force, some of the material in the vertical groove impeller passes through the inclined groove on the inclined groove sleeve and the vertical groove on the vertical groove impeller to be thrown outwards, while some is displaced downwards and dispersed by the guide of the conical diverter column. At the same time, the rotating cover also rotates, causing the two spiral blades to revolve while rotating on their own axis. This allows the revolving spiral blades to stir the material thrown outwards by the inclined groove sleeve and the vertical groove impeller.

[0008] Preferably, a conical diversion column is provided at the lower end of the diversion blade, and the four-column support frame is composed of a hollow column, an outer support column and a fixing ring. The hollow column is fixed to the middle of the lower end face of the rotating cover, and three evenly distributed outer support columns are fixed to the outside of the hollow column. The lower ends of the hollow column and the outer support columns are jointly fixed to a fixing ring.

[0009] Preferably, the drive shaft is rotatably connected to the interior of the hollow column, the lower end of the inclined groove sleeve is provided with an inclined groove, the upper end of the vertical groove impeller is provided with a vertical groove, the first drive gear and the driven gear are both located inside the rotating cover, the upper end of the rotating cover is equipped with a first motor, and the lower end of the first motor is connected to the first drive gear through an output shaft.

[0010] Preferably, the outer side of the rotating cover is provided with multiple evenly distributed toothed grooves, and the outer side of the lower end face of the rotating cover is provided with a positioning groove, the lower end of which is rotatably connected to a stirring tank.

[0011] Preferably, the rear end of the rotating cover is engaged with a second drive gear through a toothed groove, the lower end of the second drive gear is connected to a second motor through an output shaft, and the second motor is fixedly connected to the mixing tank through a bracket.

[0012] Preferably, the mixing tank has a feed hopper at the front end, a discharge valve at the rear end of the lower end face of the mixing tank, a hydraulic cylinder at the lower end of the second motor, and a base at the lower end of the hydraulic cylinder.

[0013] Preferably, the upper front end of the hydraulic cylinder is rotatably connected to the mixing tank via a rotary joint, the lower rear end of the hydraulic cylinder is rotatably connected to the base via a rotary joint, and the upper front end of the base is rotatably connected to the mixing tank via a rotary joint.

[0014] The beneficial effects of this utility model are:

[0015] By setting up a sloping groove sleeve, a vertical groove impeller, and spiral blades, the first drive gear, with a smaller radius than the driven gear, causes the driven gear to rotate at a slower speed. Simultaneously, the spiral blades rotate, causing the material inside the mixing tank to tumble. The drive shaft then drives the vertical groove impeller and guide blades to rotate at high speed. The vertical groove impeller and guide blades draw the material downwards into the central shaft area of ​​the double-spiral mixing structure formed by the two spiral blades. Due to centrifugal force, some of the material in the vertical groove impeller passes through the sloping grooves on the sloping groove sleeve and the vertical grooves on the vertical groove impeller, and some is dispersed downwards by the guide of the conical diverter. At the same time, the rotating cover also rotates, causing the two spiral blades to revolve while rotating. The revolving spiral blades stir the material thrown outwards by the sloping groove sleeve and vertical groove impeller, thus attracting the material in the central shaft area of ​​the double-spiral mixing structure and throwing it outwards. The revolving and rotating spiral blades then stir and tumble the material, improving mixing uniformity and shortening mixing time. Attached Figure Description

[0016] Figure 1 The diagram shown is a cross-sectional view of the conical diversion column structure of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the rotating cover of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the vertical groove impeller of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the feed hopper of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the base of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Four-column support frame; 2. Inclined groove sleeve; 3. Vertical groove impeller; 4. Guide vane; 5. Drive shaft; 6. First drive gear; 7. Driven gear; 8. Spiral blade; 9. Rotating cover; 10. Conical diverter column; 101. Hollow column; 102. Outer support column; 103. Fixing ring; 11. First motor; 12. Gear groove; 13. Positioning groove; 14. Mixing tank; 15. Second drive gear; 16. Second motor; 17. Feed hopper; 18. Discharge valve; 19. Hydraulic cylinder; 20. Base. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a powder production mixing device, including a four-column support frame 1; it also includes a vertical groove impeller 3 and a spiral blade 8. A slanted groove sleeve 2 is fixedly connected to the lower end of the four-column support frame 1. The vertical groove impeller 3 is rotatably connected inside the slanted groove sleeve 2. A flow-guiding blade 4 is fixedly connected to the bottom end of the inner side of the vertical groove impeller 3. A drive shaft 5 is fixedly connected to the upper end of the flow-guiding blade 4. A first drive gear 6 is fixedly connected to the upper end face of the drive shaft 5. Driven gears 7 mesh on both sides of the first drive gear 6. A spiral blade 8 for stirring raw materials is fixedly connected to the lower end of the driven gear 7. A rotating cover 9, rotatably connected to the drive shaft 5 and the spiral blade 8, is provided at the lower end of the first drive gear 6. The radius of the first drive gear 6 is smaller than that of the driven gear 7, so the first drive... When the driving gear 6 rotates, it causes the driven gear 7 to rotate at a slower speed. Simultaneously, as the spiral blades 8 rotate, causing the material inside the mixing tank 14 to tumble, the drive shaft 5 causes the vertical groove impeller 3 and the guide vanes 4 to rotate at high speed. This allows the vertical groove impeller 3 and the guide vanes 4 to draw the material downwards into the central shaft area of ​​the double-spiral mixing structure formed by the two spiral blades 8. Due to centrifugal force, some of the material in the vertical groove impeller 3 passes through the inclined grooves on the inclined sleeve 2 and the vertical grooves on the vertical groove impeller 3, being thrown outwards. The remaining material is displaced downwards and dispersed by the guide of the conical diverter column 10. At the same time, the rotating cover 9 also rotates, causing the two spiral blades 8 to revolve while rotating, allowing the revolving spiral blades 8 to interact with the inclined groove sleeve 2 and the vertical groove impeller 3. The wheel 3 throws the raw materials in all directions to stir them. The lower end of the guide vane 4 is provided with a conical diverting column 10. The four-column support frame 1 is composed of a hollow column 101, an outer support column 102, and a fixing ring 103. The hollow column 101 is fixed to the middle of the lower end face of the rotating cover 9. Three evenly distributed outer support columns 102 are fixed to the outside of the hollow column 101. The lower ends of the hollow column 101 and the outer support columns 102 are jointly fixed with a fixing ring 103. The hollow column 101, the outer support columns 102, and the fixing ring 103 are used to increase the stability when the inclined groove sleeve 2 is fixed. The drive shaft 5 is rotatably connected to the inside of the hollow column 101. The lower end of the inclined groove sleeve 2 is provided with an inclined groove, and the upper end of the vertical groove impeller 3 is provided with a vertical groove. The first drive gear 6 and the driven gear 7 are both provided with The rotating cover 9 is placed inside the rotating cover 9. A first motor 11 is installed on the upper end of the rotating cover 9. The lower end of the first motor 11 is connected to the first drive gear 6 through the output shaft. The first motor 11 is used to drive the first drive gear 6 to rotate. Multiple evenly distributed toothed grooves 12 are opened on the outer side of the rotating cover 9. A positioning groove 13 is opened on the outer side of the lower end of the rotating cover 9. The lower end of the positioning groove 13 is rotatably connected to the stirring tank 14. The rear end of the rotating cover 9 is engaged with the second drive gear 15 through the toothed groove 12. The lower end of the second drive gear 15 is connected to the second motor 16 through the output shaft. The second motor 16 is fixed to the stirring tank 14 through the bracket. The second motor 16 rotates the rotating cover 9 through the second drive gear 15 and the toothed groove 12, so that the spiral blade 8 revolves.

[0024] Please see Figures 4-5 In this embodiment, a feed hopper 17 is provided at the front end of the mixing tank 14, and a discharge valve 18 is installed at the rear end of the lower end face of the mixing tank 14. A hydraulic cylinder 19 is provided at the lower end of the second motor 16, and a base 20 is provided at the lower end of the hydraulic cylinder 19. The upper front end of the hydraulic cylinder 19 is rotatably connected to the mixing tank 14 through a rotary joint, and the lower rear end of the hydraulic cylinder 19 is rotatably connected to the base 20 through a rotary joint. The upper front end of the base 20 is rotatably connected to the mixing tank 14 through a rotary joint. The feed hopper 17 is used to add raw materials into the mixing tank 14. After mixing, the hydraulic cylinder 19 is contracted to make the mixing tank 14 tilt backward with its own lower rear end as the fulcrum, so that the raw materials in the mixing tank 14 accumulate to the rear end, and the discharge valve 18 is opened to discharge the materials.

[0025] In operation, the feed hopper 17 is used to add raw materials into the mixing tank 14. The first motor 11 drives the first drive gear 6 to rotate. The radius of the first drive gear 6 is smaller than that of the driven gear 7, so when the first drive gear 6 rotates, it causes the driven gear 7 to rotate at a slower speed. At the same time, while the spiral blades 8 rotate and cause the raw materials in the mixing tank 14 to tumble up and down, the drive shaft 5 causes the vertical groove impeller 3 and the guide blades 4 to rotate at high speed. The vertical groove impeller 3 and the guide blades 4 draw the raw materials in the middle shaft area of ​​the double spiral mixing structure formed by the two spiral blades 8 downward through the vertical groove impeller 3 and the guide blades 4, and cause the raw materials in the vertical groove impeller 3 to be drawn downward due to centrifugal force. A portion of the material passes through the inclined groove on the inclined sleeve 2 and the vertical groove on the vertical impeller 3 to be thrown outwards, while another portion moves downwards and is dispersed by the guide of the conical diverter column 10. At the same time, the second motor 16 rotates the rotating cover 9 through the second drive gear 15 and the tooth groove 12, so that the two spiral blades 8 revolve while rotating on their own axis, so that the revolving spiral blades 8 can stir the raw material thrown outwards by the inclined sleeve 2 and the vertical impeller 3. After the mixing is completed, the hydraulic cylinder 19 contracts to make the mixing tank 14 tilt backwards with its own lower rear end as the fulcrum, so that the raw material in the mixing tank 14 accumulates at the rear end, and the discharge valve 18 is opened to discharge the material.

[0026] Through the above steps, by setting the inclined groove sleeve 2, the vertical groove impeller 3, and the spiral blades 8, since the radius of the first driving gear 6 is smaller than that of the driven gear 7, the rotation of the first driving gear 6 will cause the driven gear 7 to rotate at a slower speed. This allows the spiral blades 8 to rotate, causing the material inside the mixing tank 14 to tumble up and down. Simultaneously, the drive shaft 5 causes the vertical groove impeller 3 and the guide blades 4 to rotate at high speed. This allows the vertical groove impeller 3 and the guide blades 4 to draw the material downwards into the middle shaft area of ​​the double-spiral mixing structure formed by the two spiral blades 8, and to cause the material inside the vertical groove impeller 3 to be drawn downwards due to centrifugal force. A portion of the material passes through the inclined groove on the inclined sleeve 2 and the vertical groove on the vertical impeller 3 to be thrown in all directions, while another portion moves downward and is dispersed by the guide of the conical diverter column 10. At the same time, the rotating cover 9 also rotates, causing the two spiral blades 8 to revolve while rotating on their own axis. This allows the revolving spiral blades 8 to stir the material thrown in all directions by the inclined sleeve 2 and the vertical impeller 3, thereby attracting the material in the central shaft area of ​​the double spiral stirring structure and throwing it in all directions. The material is then stirred and tumbled by the revolving and rotating spiral blades 8 to improve the mixing uniformity and shorten the mixing time.

Claims

1. A powder production and mixing device, comprising a four-column support frame (1); characterized in that: It also includes a vertical groove impeller (3) and a spiral blade (8). The lower end of the four-column support frame (1) is fixedly connected to a slanted groove sleeve (2). The vertical groove impeller (3) is rotatably connected inside the slanted groove sleeve (2). The bottom end of the inner side of the vertical groove impeller (3) is fixedly connected to a flow guiding blade (4). The upper end of the flow guiding blade (4) is fixedly connected to a drive shaft (5). The upper end face of the drive shaft (5) is fixedly connected to a first drive gear (6). Both sides of the first drive gear (6) are meshed with driven gears (7). The lower end of the driven gear (7) is fixedly connected to a spiral blade (8) for stirring raw materials. The lower end of the first drive gear (6) is provided with a rotating cover (9) that is rotatably connected to the drive shaft (5) and the spiral blade (8).

2. The powder production mixing equipment according to claim 1, characterized in that: The lower end of the flow guide blade (4) is provided with a conical diversion column (10). The four-column support frame (1) is composed of a hollow column (101), an outer support column (102) and a fixing ring (103). The hollow column (101) is fixed to the middle of the lower end face of the rotating cover (9). Three evenly distributed outer support columns (102) are fixed to the outside of the hollow column (101). The lower ends of the hollow column (101) and the outer support column (102) are jointly fixed with a fixing ring (103).

3. The powder production mixing equipment according to claim 1, characterized in that: The drive shaft (5) is rotatably connected to the interior of the hollow column (101). The lower end of the inclined groove sleeve (2) is provided with an inclined groove, and the upper end of the vertical groove impeller (3) is provided with a vertical groove. The first drive gear (6) and the driven gear (7) are both located inside the rotating cover (9). The upper end of the rotating cover (9) is equipped with a first motor (11), and the lower end of the first motor (11) is connected to the first drive gear (6) through the output shaft.

4. The powder production mixing equipment according to claim 1, characterized in that: The outer side of the rotating cover (9) is provided with multiple evenly distributed toothed grooves (12), and the outer side of the lower end face of the rotating cover (9) is provided with a positioning groove (13). The lower end of the positioning groove (13) is rotatably connected to the stirring tank (14).

5. The powder production mixing equipment according to claim 1, characterized in that: The rear end of the rotating cover (9) is engaged with a second drive gear (15) through a toothed groove (12). The lower end of the second drive gear (15) is connected to a second motor (16) through an output shaft, and the second motor (16) is fixed to the mixing tank (14) through a bracket.

6. The powder production mixing equipment according to claim 5, characterized in that: The mixing tank (14) has a feed hopper (17) at the front end, a discharge valve (18) is installed at the rear end of the lower end face of the mixing tank (14), a hydraulic cylinder (19) is installed at the lower end of the second motor (16), and a base (20) is installed at the lower end of the hydraulic cylinder (19).

7. The pharmaceutical powder production mixing equipment according to claim 6, characterized in that: The upper front end of the hydraulic cylinder (19) is rotatably connected to the mixing tank (14) via a rotary joint, and the lower rear end of the hydraulic cylinder (19) is rotatably connected to the base (20) via a rotary joint. The upper front end of the base (20) is rotatably connected to the mixing tank (14) via a rotary joint.

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