Stirring machine

Abstract

The utility model discloses a stirring machine which is arranged on a stirring barrel and comprises a driving plate arranged on the stirring barrel, a driving cavity is formed in the driving plate, a main driving gear and an auxiliary driving gear are arranged in the driving cavity, the main driving gear is rotatably arranged in the driving cavity through a driving shaft, one end of the driving shaft is in transmission connection with a driving motor, and the other end of the driving shaft is in transmission connection with the auxiliary driving gear. A plurality of main stirring paddles are arranged on the side wall of the shaft section of the driving shaft in the stirring barrel at intervals in the circumferential direction; the auxiliary driving gear is rotatably mounted in the driving cavity through a driven shaft, one end of the driven shaft extends into the stirring barrel, and a plurality of auxiliary stirring paddles are arranged on the driven shaft at intervals in the circumferential direction; the main stirring paddle and the auxiliary stirring paddle are arranged in a left-right staggered manner along the height direction of the stirring barrel; the main stirring paddles and the auxiliary stirring paddles are arranged in a staggered manner, so that a complex fluid force field is formed, the shearing force and the dispersing force among materials are increased, the stirring uniformity and the stirring efficiency are improved, and the product quality is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of pharmaceutical preparation equipment, and particularly relates to a stirrer. Background Art

[0002] In the pharmaceutical field, the performance of the stirrer is crucial for the production efficiency and product quality of drugs. However, the existing pharmaceutical stirrers have significant deficiencies in terms of stirring efficiency and stirring effect. The stirring method often fails to form a complex fluid force field, resulting in insufficient shear force and dispersion force between materials. Moreover, due to uneven stirring, it not only affects the consistency and stability of drugs but also may lead to incomplete raw material reactions. At the same time, the problem of residual liquid on the inner wall of the stirring barrel needs to be solved urgently. This not only wastes raw materials, increases production costs, but also may cause pollution to the next batch of production, affecting the purity and safety of drugs. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a stirrer to improve the stirring efficiency, reduce the residual liquid, and enhance the product quality.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions: A stirrer is provided on a stirring barrel, including a driving plate installed on the stirring barrel. A driving cavity is formed in the driving plate. A main driving gear and a sub-driving gear are arranged in the driving cavity. The main driving gear is rotatably installed in the driving cavity through a driving shaft. One end of the driving shaft is in transmission connection with a driving motor, and the other end extends into the stirring barrel. A plurality of main stirring paddles are arranged at intervals along the circumferential direction on the side wall of the shaft section of the driving shaft located in the stirring barrel. The sub-driving gear is rotatably installed in the driving cavity through a driven shaft. A plurality of sub-driving gears are arranged around the circumference of the main driving gear and mesh with the main driving gear. One end of the driven shaft extends into the stirring barrel, and a plurality of sub-stirring paddles are arranged at intervals along the circumferential direction thereon. The main stirring paddles and the sub-stirring paddles are arranged alternately left and right along the height direction of the stirring barrel. Through the alternating arrangement of the main stirring paddles and the sub-stirring paddles, a complex fluid force field is formed, increasing the shear force and dispersion force between materials, improving the stirring uniformity and efficiency, and ensuring the product quality.

[0005] Preferably, an internal gear ring is rotatably installed in the driving cavity. The internal gear ring surrounds the main driving gear. One side of each sub-driving gear meshes with the internal gear ring, and the other side meshes with the main driving gear. A stirring frame is connected to the internal gear ring. The stirring frame is located in the stirring barrel. Further increasing the shear force between materials, improving the stirring uniformity and efficiency.

[0006] Preferably, the stirring frame includes a bottom rod, side rods disposed on both sides of the bottom rod, and connecting rods disposed on the side rods. The bottom rod is in contact with the stirring cylinder, the side rods are in contact with the inner wall of the stirring cylinder, and the connecting rods are connected to the internal gear ring. Through the specific position setting of the stirring frame, as the stirring frame rotates, it can scrape the inner wall of the stirring cylinder to assist in discharging the remaining liquid, so as to reduce the remaining liquid residue.

[0007] Preferably, reinforcing ribs are provided between the two side rods and the corresponding connecting rods to improve the structural strength and service life of the stirring frame, and to prevent the stirring frame from not fitting tightly with the inner wall of the stirring cylinder, which may affect the scraping of the residual liquid.

[0008] Preferably, a support cross bar is provided between the side rods, and a central sleeve is provided on the support cross bar. The central sleeve is fitted and sleeved on the bottom end of the driving shaft to further improve the structural strength and service life of the stirring frame.

[0009] Preferably, stirring blades are also provided on the support cross bar to further increase the shear force between the materials, and improve the stirring uniformity and stirring efficiency.

[0010] Preferably, an annular groove is provided at the bottom of the driving cavity, and a connecting column is provided on the internal gear ring. The connecting column passes through the annular groove and is detachably connected to the stirring frame to realize the connection between the internal gear ring and the stirring frame.

[0011] Preferably, a clamping groove is provided at the bottom of the connecting column. The stirring frame is clamped in the clamping groove and is connected and fixed to the connecting column through a threaded member. Through the detachable connection of the threaded member, it is convenient to replace the stirring frame. Due to the scraping effect of the stirring frame, its deformation will cause its function to fail directly. As a vulnerable part, it can be replaced efficiently and conveniently through the detachable connection, indirectly ensuring the production efficiency.

[0012] Preferably, a retaining ring is rotatably installed in the annular groove, and through holes are provided on the retaining ring. The connecting column is fitted through the through holes to ensure the rotational support of the internal gear ring while blocking the raw materials from splashing into the driving cavity and avoiding contamination of the product.

[0013] Preferably, a feed pipe for inputting raw materials is provided on the driving plate. The feed pipe is fixedly connected to the top surface and the bottom surface of the driving cavity respectively to realize convenient feeding while connecting the top surface and the bottom surface of the driving cavity to ensure the structural stability.

[0014] The technical effect of the present utility model is as follows: Through the staggered arrangement of the main stirring blades and the auxiliary stirring blades, a complex fluid force field is formed, increasing the shear force and dispersion force between the materials, improving the stirring uniformity and stirring efficiency, and ensuring the product quality. At the same time, through the specific position setting of the stirring frame, as the stirring frame rotates, it can scrape the inner wall of the stirring cylinder to assist in discharging the remaining liquid, so as to reduce the remaining liquid residue. Description of the Drawings

[0015] Figure 1 This is a schematic structural view of the present utility model.

[0016] Figure 2 This is a top view schematic of the present utility model.

[0017] Figure 3 is Figure 2 a cross-sectional view taken along line A-A in

[0018] Figure 4 is Figure 2 a cross-sectional view taken along line B-B in

[0019] Figure 5 This is a partial structural schematic view of the present utility model.

[0020] The reference numerals of the main technical features in the figure are: 1, mixing drum; 11, discharge port; 2, drive plate; 21, drive cavity; 22, annular groove; 23, connecting column; 24, feed pipe; 3, retaining ring; 31, guiding platform; 32, guiding groove; 33, through hole; 4, main drive gear; 41, driving shaft; 42, drive motor; 43, main mixing paddle; 5, auxiliary drive gear; 51, driven shaft; 52, auxiliary mixing paddle; 6, internal gear ring; 61, connecting platform; 7, mixing frame; 71, bottom rod; 72, side rod; 73, connecting rod; 74, reinforcing rib; 8, supporting cross bar; 81, mixing paddle blade; 82, central sleeve. Detailed Embodiment

[0021] The present utility model will be further described below through specific embodiments and the accompanying drawings.

[0022] As Figures 1-5 shown, a mixer is installed on the mixing drum 1. The bottom of the mixing drum 1 is provided with a discharge port 11 for controlling the discharge of the mixed product.

[0023] Specifically, the mixer includes a drive plate 2. The drive plate 2 is fixedly installed on the mixing drum 1. A drive cavity 21 is formed inside the drive plate 2. An annular groove 22 is formed at the bottom of the drive cavity 21 around the center. The annular groove 22 divides the drive plate 2 into two entities. Multiple connecting platforms 61 are provided on the circular bottom plate surrounded by the annular groove 22. The connecting platforms 61 are used to connect and fix the two entities of the drive plate 2. At least one of the connecting platforms 61 extends upward and downward respectively, and it is a hollow channel pipe. This connecting platform 61 is the feed pipe 24. The number of the feed pipes 24 is set corresponding to the ingredient situation of the raw materials.

[0024] Further, a retaining ring 3 is rotatably arranged in the annular groove 22. The retaining ring 3 is an annular plate similar in shape to the annular groove 22, and two guiding platforms 31 are arranged on both sides thereof. A guiding groove 32 is formed in the groove wall of the annular groove 22. The guiding platforms 31 are fitted and clamped in the guiding groove 32, and the retaining ring 3 can rotate around the center of the driving cavity 21 under the guiding cooperation of the guiding groove 32 and the guiding platforms 31.

[0025] Specifically, a main driving gear 4 is rotatably installed at the center of the driving cavity 21 through a driving shaft 41. One end of the driving shaft 41 penetrates upward out of the driving cavity 21 and is in transmission connection with a driving motor 42. The driving motor 42 is a prior art and can be a common reduction motor. The other end of the driving shaft 41 penetrates downward through the circular bottom plate and extends into the mixing barrel 1, and multiple rows of main stirring paddles 43 are uniformly arranged at intervals along the circumferential direction on the side wall of the shaft section of the driving shaft 41 located in the mixing barrel 1.

[0026] Further, a plurality of auxiliary driving gears 5 are rotatably installed in the driving cavity 21 through a driven shaft 51. A plurality of auxiliary driving gears 5 are arranged around the circumference of the main driving gear 4. One end of the driven shaft 51 extends downward into the mixing barrel 1, and multiple rows of auxiliary stirring paddles 52 are arranged at intervals along the circumferential direction thereon; the main stirring paddles 43 and the auxiliary stirring paddles 52 are arranged in a left-right staggered manner along the axial direction of the driving shaft 41.

[0027] Further, an internal gear ring 6 is arranged in the driving cavity 21. The internal gear ring 6 surrounds the auxiliary driving gears 5 and the main driving gear 4, and its internal teeth are respectively meshed with the auxiliary driving gears 5. As the main driving gear 4 rotates, the auxiliary driving gears 5 can be driven to rotate self and the internal gear ring 6 to rotate.

[0028] Further, two through holes 33 are symmetrically formed in the retaining ring 3. A connecting column 23 is fixedly connected to the bottom of the internal gear ring 6. The connecting column 23 is fitted and passes through the through holes 33, and its bottom penetrates into the mixing barrel 1 and is detachably installed with a mixing frame 7.

[0029] Further, the mixing frame 7 includes a bottom rod 71, side rods 72 and a connecting rod 73. The bottom rod 71 abuts against the bottom surface of the mixing barrel 1, and side rods 72 are fixedly connected to both ends thereof. The side rods 72 are arranged in abutment with the inner wall of the mixing barrel 1. If an arc chamfer is provided on the bottom side edge of the mixing barrel 1, the connection between the side rod 72 and the bottom rod 71 is provided with an arc transition. If there is no chamfer, the side rod 72 and the bottom rod 71 are directly provided with a top angle transition; a connecting rod 73 is connected to the top of the side rod 72. The bottom rod 71 and the side rod 72 are correspondingly perpendicular to each other. The side rod 72 and the connecting rod 73 are perpendicular to each other, and a reinforcing rib 74 is arranged between the side rod 72 and the connecting rod 73. Both ends of the reinforcing rib 74 are respectively fixedly connected to the side rod 72 and the connecting rod 73.

[0030] Furthermore, a slot is provided at the bottom of the connecting column 23, and the connecting rod 73 is engaged in the slot and is connected and fixed to the connecting column 23 via a screw member. The screw member is of prior art and can be a commonly used bolt and nut.

[0031] Furthermore, a supporting cross bar 8 is arranged between the side bars 72, and the supporting cross bar 8 is arranged parallel to the bottom bar 71. A stirring blade 81 is fixedly connected to the supporting cross bar 8, and a center sleeve is provided at the center. The center sleeve is fitted and sleeved on the bottom end of the driving shaft 41 to achieve auxiliary support for the stirring frame 7 structure.

[0032] The specific implementation process of the utility model is as follows: when it is necessary to stir the medicinal liquid, the corresponding raw materials are introduced into the feed pipe 24, the drive motor 42 is started, the driving shaft drives the main drive gear 4 to rotate at a high speed, and the internal gear ring 6 is driven to rotate through the transmission of the auxiliary drive gear 5. At this time, the main stirring paddle 43 and the auxiliary stirring paddle 52 are alternately stirred, and the internal gear ring 6 drives the baffle to rotate along the annular groove 22, and at the same time drives the stirring frame 7 to rotate, and the stirring blade 81 cooperates with the main stirring paddle 43 and the auxiliary stirring paddle 52 to further stir; when the stirring is completed, the discharge port 11 is opened, and the medicinal liquid is discharged from the discharge port 11 by slowly driving the driving shaft to rotate, and at the same time the stirring frame 7 scrapes the bottom and side walls of the stirring barrel to scrape the remaining liquid and assist in the discharge of the medicinal liquid.

[0033] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used on similar products. Any changes or modifications made by any technician in the field of the present invention are covered by the patent scope of the present invention.

Claims

1. A mixer, which is arranged on a mixing drum (1), characterized in that: The invention comprises a driving plate (2) mounted on the mixing drum (1), wherein a driving cavity (21) is provided in the driving plate (2), wherein a main driving gear (4) and a secondary driving gear (5) are provided in the driving cavity (21), wherein the main driving gear (4) is rotatably mounted in the driving cavity (21) via a driving shaft (41), wherein one end of the driving shaft (41) is drivingly connected to a driving motor (42), and the other end of the driving shaft (41) extends into the mixing drum (1), and a driving gear (42) is provided on the side wall of the shaft section of the driving shaft (41) in the mixing drum (1) along the circumferential direction. A plurality of main stirring paddles (43) are arranged at intervals; the auxiliary driving gear (5) is rotatably mounted in the driving cavity (21) via a driven shaft (51); a plurality of auxiliary stirring paddles (52) are arranged in a circumferential direction around the main driving gear (4) and mesh with the main driving gear (4); one end of the driven shaft (51) extends into the mixing drum (1), and a plurality of auxiliary stirring paddles (52) are arranged in an interval along the circumferential direction; the main stirring paddles (43) and the auxiliary stirring paddles (52) are arranged in a left-right staggered manner along the height direction of the mixing drum (1).

2. A mixer according to claim 1, characterized in that: An internal gear ring (6) is rotatably installed in the driving chamber (21), and the internal gear ring (6) is arranged around the main driving gear (4). One side of each auxiliary driving gear (5) is meshed with the internal gear ring (6), and the other side is meshed with the active driving gear; a stirring frame (7) is connected to the internal gear ring (6), and the stirring frame (7) is located in the stirring barrel (1).

3. A mixer according to claim 2, characterized in that: The stirring frame (7) comprises a bottom rod (71), side rods (72) arranged on both sides of the bottom rod (71), and a connecting rod (73) arranged on the side rod (72); the bottom rod (71) is arranged to abut against the bottom surface of the stirring drum (1); the side rods (72) are arranged to abut against the inner wall of the stirring drum (1); and the connecting rod (73) is connected to the inner gear ring (6).

4. A mixer according to claim 3, characterized in that: Reinforcing ribs (74) are provided between the side bars (72) on both sides and the corresponding connecting bars (73).

5. A mixer according to claim 3, characterized in that: A supporting cross bar (8) is arranged between the side bars (72), and a center sleeve is arranged on the supporting cross bar (8), and the center sleeve is sleeved on the bottom end of the driving shaft (41) in a matching manner.

6. A mixer according to claim 5, characterized in that: The supporting crossbar (8) is provided with a stirring blade (81).

7. A mixer according to claim 2, characterized in that: The bottom of the driving cavity (21) is provided with an annular groove (22), and the inner gear ring (6) is provided with a connecting column (23). The connecting column (23) passes through the annular groove (22) and is detachably connected to the stirring frame (7).

8. A mixer according to claim 7, characterized in that: A slot is provided at the bottom of the connecting column (23), and the stirring frame (7) is engaged in the slot and is fixedly connected to the connecting column (23) via a screw.

9. A mixer according to claim 7, characterized in that: A retaining ring (3) is rotatably installed in the annular groove (22), a through hole (33) is provided on the retaining ring (3), and the connecting column (23) is cooperatively inserted into the through hole (33).

10. A mixer according to claim 1, characterized in that: The driving plate (2) is provided with a feeding pipe (24) for inputting raw materials, and the feeding pipe (24) is respectively fixedly connected to the top surface and the bottom surface of the driving cavity (21).

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