External gel preparation equipment and preparation method thereof

Abstract

The invention relates to the technical field of biological medicine manufacturing equipment, provides external gel preparation equipment and a preparation method thereof, and ensures material uniformity through three-dimensional stirring motion driven by a reciprocating lead screw. The driving mechanism is adopted to simultaneously realize rotation and up-down reciprocating motion of the stirring mechanism. A second motor drives a gear set to drive a rotary column to rotate, a fluted disc is fixed at one end of the rotary column to drive four stirring mechanisms to rotate synchronously, and the other end is connected with a reciprocating lead screw. Rotation of the reciprocating lead screw is converted into up-and-down reciprocating motion of the sliding block, and therefore the cross and all the stirring mechanisms are driven to integrally ascend and descend. According to the three-dimensional stirring mode combining rotation and lifting, materials can flow in multiple directions in the radial direction, the axial direction and the tangential direction in the gel preparation barrel, stirring dead angles are thoroughly eliminated, and the three-dimensional stirring device is particularly suitable for gel materials with high viscosity or non-Newtonian fluid characteristics. According to the design, the common problems of layering, agglomeration or non-uniformity in the traditional stirring equipment are effectively solved, and the product quality consistency is improved.

Description

Technical Field

[0001] This invention relates to the field of biopharmaceutical manufacturing equipment technology, specifically to a topical gel preparation device and its preparation method. Background Technology

[0002] Significant progress has been made in the research and development of medical dressings and antibacterial hydrogels in recent years in the field of biopharmaceutical manufacturing. Gel products (such as topical dressings and antibacterial hydrogels) are widely used in wound care, infection control, and local treatment due to their excellent biocompatibility, moisturizing properties, and sustained drug release characteristics. The preparation of these products requires ensuring the homogeneity, sterility, and structural stability of the materials to avoid component stratification, aggregation, or microbial contamination, which could affect efficacy and safety.

[0003] A search revealed an existing patent (publication number: CN221906671U) that discloses an easily adjustable antibacterial hydrogel preparation device, relating to the field of hydrogel preparation technology. The device includes a main body with a support rod fixedly connected to its upper surface. A limiting rod is fixedly connected to one side of the support rod, and a fixing rod is movably connected to the outer ring of the limiting rod. A mixing and processing shell is fixedly connected to one side of the fixing rod, and a top cover plate is movably connected to the upper surface of the mixing and processing shell. A liquid guiding shell is fixedly connected to one side of the mixing and processing shell, and a baffle is movably connected to one side of the liquid guiding shell. A protective shell is fixedly connected to one side of the mixing and processing shell. This invention, through the support rod fixedly connected to the upper surface of the main body, allows the user to move the fixing rod between the limiting rod and the support rod after pushing the telescopic rod. This device aims to solve the problems of inconvenient adjustment and low efficiency of existing preparation equipment.

[0004] However, this type of equipment has obvious limitations: 1. Single stirring dimension: Traditional equipment mostly relies on radial rotation stirring, which makes it difficult to achieve axial and tangential mixing. This leads to dead zones and uneven component distribution in high-viscosity or non-Newtonian fluid materials (such as gel matrices). 2. Cleaning and residue issues: Fixed stirring blades hinder molecular cross-linking during the static stage, and the inner wall of the preparation cylinder cannot be cleaned while feeding materials, both of which easily result in material residue. 3. Insufficient precision in material feeding control: Most equipment uses the gel's own gravity for feeding, lacking a quantitative adjustment mechanism, making it difficult to adapt to the volume requirements of different packaging containers, which can easily lead to waste or pollution.

[0005] The aforementioned deficiencies directly affect the consistency of gel product quality, antibacterial efficacy, and production efficiency, especially in the field of biopharmaceutical manufacturing, where the requirements for equipment hygiene, mixing accuracy, and operational controllability are extremely stringent. Therefore, there is an urgent need for a specialized preparation equipment that can achieve three-dimensional mixing, adjustable extrusion, and is easy to clean. Summary of the Invention

[0006] This invention proposes a topical gel preparation device and its preparation method, which solves the problems of single stirring dimension, high cleaning difficulty, easy material residue, and insufficient material control precision in related technologies.

[0007] The technical solution of the present invention is as follows: An external gel preparation device, comprising: a gel preparation tank, a detachable and fixedly connected lid to the top of the gel preparation tank, a support frame for supporting the gel preparation tank, a feed pipe fixedly connected to the bottom of the gel preparation tank, a feed pipe fixedly connected to the side wall of the gel preparation tank, and a piston slidably sleeved inside the gel preparation tank. A cross is provided on the upper side of the lid, and a stirring mechanism is provided at each of the four ends of the cross. The stirring mechanism extends to the inside of the gel preparation tank and penetrates the inside of the piston. An F-shaped frame is fixed to the top of the bucket lid, and a push-pull device is provided on the F-shaped frame for driving the piston to move up and down inside the gel preparation bucket; A toothed disc is provided on the lower side of the cross, and four stirring mechanisms are arranged in a ring array on the outer side of the toothed disc; The F-frame is equipped with a drive mechanism for rotating the toothed disc and for raising and lowering the cross.

[0008] Preferably, the stirring mechanism includes a shaft that slides through the top of the bucket lid, a toothed column is fixedly connected to the top of the shaft, the toothed column meshes with the toothed disc, and the toothed column is rotatably connected to the end of the cross.

[0009] Preferably, the stirring mechanism further includes a square column fixed to the bottom end of the shaft and a rotating shaft that rotatably passes through the inside of the piston, wherein the square column slides through the inside of the rotating shaft.

[0010] Preferably, the outer wall of the square column located below the rotating shaft is uniformly provided with mounting cavities. Each mounting cavity is rotatably connected to a porous stirring blade via a shaft. An arc-shaped guide rod is fixed to the outer wall of the porous stirring blade. The arc-shaped guide rod slides into the interior of the square column. A spring groove is provided inside the square column located on one side of the mounting cavity. A return spring is sleeved on the outer side of the arc-shaped guide rod. The two ends of the return spring are respectively connected to the outer wall of the porous stirring blade and the interior of the spring groove.

[0011] Preferably, the drive mechanism includes a second motor fixedly connected to the F-type frame, the output shaft of the second motor rotatably passes through the outer wall of the F-type frame and is fixedly connected to a first gear, a second gear is meshed with one side of the first gear, and a rotating column is fixedly sleeved inside the second gear, the rotating column rotatably passes through the inside of the F-type frame and is fixedly connected to the gear plate.

[0012] Preferably, the rotating column is fixedly inserted inside the gear plate, a reciprocating screw is fixedly connected to the top of the rotating column, the top of the reciprocating screw is rotatably connected to the top of the F-shaped frame, and a slider that cooperates with the reciprocating screw is sleeved on the outside of the reciprocating screw, and the slider is fixedly embedded inside the center of the cross.

[0013] Preferably, the push-pull device includes a first motor fixedly installed on the top of the F-frame, a turntable fixedly connected to the end of the output shaft of the first motor, a plurality of sets of screw holes being formed in a ring array through the outer wall of the turntable, and toothed blocks being detachably fixed to the outer periphery of the turntable by bolts and screw holes.

[0014] Preferably, the push-pull device further includes a push-pull rod that slides through the reciprocating lead screw, and the outer wall of the push-pull rod has a toothed groove that cooperates with the toothed block.

[0015] Preferably, the push-pull rod slides through the interior of the rotating column, and the bottom end of the push-pull rod is fixedly connected to the top end of the piston.

[0016] A method of using a topical gel preparation device includes the following steps: Step 1: Inject the material for preparing the external gel into the inside of the gel preparation tank through the feed pipe. Then, start the second motor on the drive mechanism. The second motor drives the gear disk to rotate under the action of the first gear, the second gear and the rotating column. The gear disk drives the four stirring mechanisms to rotate synchronously. Step 2: During the rotation of the stirring mechanism, under the action of centrifugal force, the porous stirring blades placed inside the placement cavity will be thrown outward, so that the materials inside the gel preparation tank can be stirred evenly by unfolding and rotating the porous stirring blades. Step 3: While the rotating column drives the toothed disc to rotate, the rotating column also drives the reciprocating screw to rotate, so that the slider can move up and down on the outer wall of the reciprocating screw, thereby driving the cross to move up and down. The cross drives the stirring mechanism to move up and down, so that the porous stirring blade can shake up and down, further stirring the solution inside the gel preparation tank. Step 4: After completing the stirring work, turn off the second motor, the stirring mechanism stops rotating, the porous stirring blades return to the inside of the placement cavity, and let the solution that has been stirred evenly inside the gel preparation tank stand. Step 5: When the solution becomes a gel, press down on the push rod on the pusher to push the piston down, and the piston will extrude the gel inside the gel preparation tank through the feed tube.

[0017] The working principle and beneficial effects of this invention are as follows: 1. This invention improves mixing efficiency and cleanliness through a centrifugal unfolding and repositioning mechanism of porous stirring blades. The device incorporates unfoldable and repositionable porous stirring blades in its stirring mechanism, specifically achieved through a mounting cavity on the outer wall of a square column, porous stirring blades connected by a rotating shaft, an arc-shaped guide rod, and a repositioning spring. During stirring, the centrifugal force generated by high-speed rotation causes the porous stirring blades to be thrown outward from the mounting cavity, the arc-shaped guide rod to be gradually pulled out from inside the square column, and the repositioning spring to extend, thereby significantly increasing the stirring area and disturbance range. When stirring stops, the repositioning spring retracts, pulling the porous stirring blades back into the mounting cavity. This mechanism not only makes stirring more thorough and efficient but also avoids the problems of traditional fixed stirring blades hindering molecular cross-linking or leaving residual materials during the gel settling stage. 2. This invention ensures material uniformity through a three-dimensional stirring motion driven by a reciprocating screw. The device employs a drive mechanism that simultaneously achieves the rotation and reciprocating motion of the stirring mechanisms. A second motor drives a gear set (the first and second gears mesh) to rotate a rotating column. One end of the column is fixed to a gear plate, driving four stirring mechanisms to rotate synchronously; the other end is connected to a reciprocating screw. The rotation of the reciprocating screw is converted into the reciprocating motion of a slider, thereby driving the cross and all stirring mechanisms to rise and fall as a whole. This three-dimensional stirring mode, combining rotation and lifting, allows the material to experience multi-directional flow in the radial, axial, and tangential directions within the gel preparation tank, completely eliminating dead zones in the stirring process. It is particularly suitable for gel materials with high viscosity or non-Newtonian fluid characteristics. This design effectively solves the common problems of stratification, agglomeration, or inhomogeneity in traditional stirring equipment, improving product quality consistency. 3. This invention's adjustable quantitative extrusion system achieves precise control and hygienic operation. The device achieves quantitative gel extrusion through the coordinated design of a pusher and piston. The pusher uses a first motor to drive a turntable. Different numbers of toothed blocks are detachably mounted on the outer circumference of the turntable via bolts, engaging with the toothed grooves on the outer wall of the pusher rod. By adjusting the number of toothed blocks, the displacement of the pusher rod per revolution of the turntable can be precisely controlled, thereby controlling the piston's downward pressure and extrusion volume. This adjustable quantitative extrusion mechanism allows for flexible adjustment of output based on the volume of downstream packaging containers, reducing waste and contamination risks. Simultaneously, the piston's close contact with the inner wall of the gel preparation tank during descent also serves a scraping and cleaning function, ensuring no residue on the inner wall and improving material utilization. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of an external gel preparation device proposed in this invention; Figure 2 This is a schematic diagram of the inner structure of the gel preparation barrel proposed in this invention; Figure 3This is a partially enlarged structural diagram of an external gel preparation device proposed in this invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 for Figure 3 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the structure of the stirring mechanism proposed in this invention; Figure 7 for Figure 6 Enlarged structural diagram at point C; In the picture: 1. Gel preparation container; 11. Feed pipe; 12. Container lid; 13. Feed pipe; 2. Stirring mechanism; 21. Toothed column; 22. Shaft; 23. Square column; 24. Rotating shaft; 25. Perforated stirring blade; 26. Housing cavity; 27. Arc-shaped guide rod; 28. Return spring; 29. ​​Spring groove; 3. Support frame; 4. Cross; 5. F-type frame; 6. Push-pull mechanism; 61. Turntable; 62. Tooth block; 63. Push-pull rod; 64. Tooth groove; 65. First motor; 66. Screw hole; 7. Drive mechanism; 71. Reciprocating lead screw; 72. Slider; 73. Second motor; 74. First gear; 75. Second gear; 76. Rotary column; 8. Gear disc; 9. Piston. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1

[0021] Please see Figures 1-7 , An external gel preparation device and its preparation method include: a gel preparation tank 1, a detachable and fixedly connected lid 12 to the top of the gel preparation tank 1, a support frame 3 for supporting the gel preparation tank 1, a feed pipe 11 fixedly connected to the bottom of the gel preparation tank 1, a feed pipe 13 fixedly connected to the side wall of the gel preparation tank 1, and a piston 9 slidably sleeved inside the gel preparation tank 1. A cross 4 is provided on the upper side of the lid 12, and a stirring mechanism 2 is provided at each of the four ends of the cross 4. The stirring mechanism 2 extends to the inside of the gel preparation tank 1 and penetrates the inside of the piston 9.

[0022] In addition, a toothed disc 8 is provided on the lower side of the cross 4, and four stirring mechanisms 2 are arranged in a ring array on the outer side of the toothed disc 8. A drive mechanism 7 is provided on the F-shaped frame 5, which is used to rotate the toothed disc 8 and to move the cross 4 up and down.

[0023] Specifically, the stirring mechanism 2 includes a shaft 22 that slides through the top of the lid 12, a toothed post 21 fixedly connected to the top of the shaft 22, the toothed post 21 meshing with the toothed disc 8, and the toothed post 21 rotatably connected to the end of the cross 4. The stirring mechanism 2 also includes a square post 23 fixedly connected to the bottom of the shaft 22 and a rotating shaft 24 that rotatably passes through the inside of the piston 9, with the square post 23 slidingly passing through the inside of the rotating shaft 24.

[0024] Furthermore, the outer wall of the square column 23 located below the rotating shaft 24 is evenly provided with mounting cavities 26. Each mounting cavity 26 is connected to a porous stirring blade 25 via a shaft. An arc-shaped guide rod 27 is fixed to the outer wall of the porous stirring blade 25. The arc-shaped guide rod 27 slides into the interior of the square column 23. A spring groove 29 is provided inside the square column 23 located on one side of the mounting cavity 26. A return spring 28 is sleeved on the outer side of the arc-shaped guide rod 27. The two ends of the return spring 28 are respectively connected to the outer wall of the porous stirring blade 25 and the interior of the spring groove 29.

[0025] Specifically, the drive mechanism 7 includes a second motor 73 fixedly connected to the F-type frame 5. The output shaft of the second motor 73 rotates through the outer wall of the F-type frame 5 and is fixedly connected to a first gear 74. A second gear 75 is meshed with one side of the first gear 74. A rotating column 76 is fixedly sleeved inside the second gear 75. The rotating column 76 rotates through the inside of the F-type frame 5 and is fixedly connected to the gear plate 8.

[0026] Furthermore, the rotating column 76 is fixedly inserted inside the gear plate 8, and a reciprocating screw 71 is fixedly connected to the top of the rotating column 76. The top of the reciprocating screw 71 is rotatably connected to the top of the F-type frame 5. A slider 72 that cooperates with the reciprocating screw 71 is sleeved on the outside of the reciprocating screw 71. The slider 72 is fixedly embedded in the center of the cross 4.

[0027] In this embodiment, the second motor 73 on the drive mechanism 7 is activated. The second motor 73 drives the first gear 74 to rotate through its output shaft. The first gear 74 drives the rotating column 76 to rotate through the second gear 75. The rotating column 76 drives the gear disk 8 to rotate, and the gear disk 8 drives the four gear columns 21 to rotate synchronously. During the rotation of the gear columns 21, the shaft 24 can be driven to rotate inside the piston 9 through the shaft 22 and the square column 23. During the rotation of the square column 23, under the action of centrifugal force, the porous stirring blade 25 placed inside the placement cavity 26 will be thrown outward, so that the arc-shaped guide rod 27 is gradually pulled out from the inside of the square column 23, and the return spring 28 is extended. Thus, the material inside the gel preparation tank 1 can be stirred evenly by the porous stirring blade 25 during the unfolding and rotation process.

[0028] In this embodiment, while the rotating column 76 drives the toothed disc 8 to rotate, the rotating column 76 also drives the reciprocating screw 71 to rotate, so that the slider 72 can move up and down on the outer wall of the reciprocating screw 71, thereby driving the cross 4 to move up and down. The cross 4 drives the stirring mechanism 2 to move up and down, so that the porous stirring blade 25 can shake up and down, further stirring the solution inside the gel preparation tank 1.

[0029] It should be noted that during the up-and-down stirring process using the porous stirring blades 25, the portion of the square column 23 without the porous stirring blades 25 slides up and down inside the rotating shaft 24. When stirring stops, the porous stirring blades 25 retract into the mounting cavity 26, at which point the entire square column 23 can slide inside the rotating shaft 24.

[0030] In this embodiment, after the stirring work is completed, the second motor 73 is turned off, the stirring mechanism 2 stops rotating, and the return spring 28 retracts to the inside of the spring groove 29 under the action of the return spring 28, and pulls the porous stirring blade 25 back to the inside of the placement cavity 26. The arc-shaped guide rod 27 slides back into the square column 23, and the solution placed inside the placement cavity 26 is squeezed out by the porous stirring blade 25. After that, the solution that is stirred evenly inside the gel preparation tank 1 is allowed to stand. Example 2

[0031] Please see Figures 1-7 A topical gel preparation device and its preparation method, including all the contents of Example 1, wherein an F-shaped frame 5 is fixedly attached to the top of the barrel lid 12, and a pusher 6 is provided on the F-shaped frame 5 for driving the piston (9) to rise and fall inside the gel preparation barrel (1).

[0032] Specifically, the push-pull device 6 includes a first motor 65 fixedly installed on the top of the F-frame 5. The output shaft end of the first motor 65 is fixedly connected to a turntable 61. The outer wall of the turntable 61 has multiple sets of screw holes 66 arranged in a ring array. The outer periphery of the turntable 61 is detachably fixed with toothed blocks 62 through bolts and screw holes 66.

[0033] Furthermore, the push-pull device 6 also includes a push-pull rod 63 that slides through the reciprocating screw 71. The outer wall of the push-pull rod 63 has a toothed groove 64 that mates with the toothed block 62. The push-pull rod 63 slides through the rotating column 76, and the bottom end of the push-pull rod 63 is fixedly connected to the top end of the piston 9.

[0034] In this embodiment, when the solution becomes a gel, the first motor 65 is started, and the turntable 61 is rotated through the output shaft of the first motor 65. According to actual working needs, for example, based on the volume of the storage tank containing the gel discharged from the feed pipe 11, an appropriate number of toothed blocks 62 are selected and installed on the outer periphery of the turntable 61. This allows the toothed blocks 62 to drive the toothed grooves 64 through the toothed blocks 62, enabling the push-pull rod 63 to rise or fall a certain distance with each rotation of the turntable 61. When the push-pull rod 63 moves downward, it pushes the piston 9 downward. Under pressure, as the piston 9 moves downward, it quantitatively extrudes the gel inside the gel preparation tank 1 through the feed pipe 11.

[0035] Working principle and usage process: The material for preparing the external gel is injected into the inside of the gel preparation tank 1 through the feed pipe 13. Then, the power is turned on, and the second motor 73 on the drive mechanism 7 is started. The second motor 73 drives the first gear 74 to rotate through its output shaft. The first gear 74 drives the rotating column 76 to rotate through the second gear 75. The rotating column 76 drives the gear disk 8 to rotate, and the gear disk 8 drives the four gear columns 21 to rotate synchronously. During the rotation of the gear columns 21, the shaft 22 and the square column 23 drive the rotating shaft 24 to rotate inside the piston 9. During the rotation of the square column 23, under the action of centrifugal force, the porous stirring blade 25 placed inside the placement cavity 26 is thrown outward, so that the arc-shaped guide rod 27 is gradually pulled out from the inside of the square column 23, so that the return spring 28 is extended. Thus, the material inside the gel preparation tank 1 can be stirred evenly by the porous stirring blade 25 during the unfolding and rotation process. While the rotating column 76 drives the toothed disc 8 to rotate, the rotating column 76 also drives the reciprocating screw 71 to rotate, so that the slider 72 can move up and down on the outer wall of the reciprocating screw 71, thereby driving the cross 4 to move up and down. The cross 4 drives the stirring mechanism 2 to move up and down, so that the porous stirring blade 25 can shake up and down, further stirring the solution inside the gel preparation tank 1.

[0036] After the stirring work is completed, the second motor 73 is turned off, the stirring mechanism 2 stops rotating, and the return spring 28 retracts to the inside of the spring groove 29 under the action of the return spring 28, and pulls the porous stirring blade 25 back to the inside of the placement cavity 26. The arc-shaped guide rod 27 slides back into the square column 23 and the solution placed in the placement cavity 26 is squeezed out by the porous stirring blade 25. After that, the solution that is stirred evenly in the gel preparation tank 1 is allowed to stand.

[0037] When the solution becomes a gel, the first motor 65 is started, and the output shaft of the first motor 65 rotates the turntable 61. Depending on the actual working needs, for example, based on the volume of the storage tank containing the gel discharged from the feed pipe 11, an appropriate number of toothed blocks 62 are installed on the outer circumference of the turntable 61. Each rotation of the turntable 61 allows the toothed blocks 62 to drive the toothed grooves 64, enabling the push-pull rod 63 to rise or fall a certain distance. When the push-pull rod 63 moves downward, it pushes the piston 9 downward. Under pressure, as the piston 9 moves downward, it quantitatively extrudes the gel inside the gel preparation tank 1 through the feed pipe 11. Furthermore, the side wall of the piston 9 scrapes against the inner wall of the gel preparation tank 1, cleaning the inner wall of the gel preparation tank 1.

[0038] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 topical gel preparation device, comprising: The gel preparation container (1), a lid (12) detachably fixed to the top of the gel preparation container (1), a support frame (3) for supporting the gel preparation container (1), a feed pipe (11) fixedly connected to the bottom of the gel preparation container (1), a feed pipe (13) fixedly connected to the side wall of the gel preparation container (1), and a piston (9) slidably sleeved inside the gel preparation container (1), characterized in that: A cross (4) is provided on the upper side of the bucket lid (12), and a stirring mechanism (2) is provided at each of the four ends of the cross (4). The stirring mechanism (2) extends to the inside of the gel preparation bucket (1) and penetrates the inside of the piston (9). The top of the bucket lid (12) is fixed with an F-shaped frame (5), and a pusher (6) is provided on the F-shaped frame (5) for driving the piston (9) to move up and down inside the gel preparation bucket (1); A toothed disc (8) is provided on the lower side of the cross (4), and four stirring mechanisms (2) are arranged in a ring array on the outside of the toothed disc (8); The F-frame (5) is equipped with a drive mechanism (7) for rotating the toothed disc (8) and for raising and lowering the cross (4).

2. The topical gel preparation device according to claim 1, characterized in that, The stirring mechanism (2) includes a shaft (22) that slides through the top of the bucket lid (12). A toothed column (21) is fixedly connected to the top of the shaft (22). The toothed column (21) meshes with the toothed disc (8). The toothed column (21) is rotatably connected to the end of the cross (4).

3. The topical gel preparation device according to claim 2, characterized in that, The stirring mechanism (2) further includes a square column (23) fixed to the bottom end of the shaft (22) and a rotating shaft (24) that rotatably passes through the inside of the piston (9), wherein the square column (23) slides through the inside of the rotating shaft (24).

4. The topical gel preparation device according to claim 3, characterized in that, The outer wall of the square column (23) located below the rotating shaft (24) is uniformly provided with mounting cavities (26). Each mounting cavity (26) is connected to a porous stirring blade (25) via a shaft. An arc-shaped guide rod (27) is fixed to the outer wall of the porous stirring blade (25). The arc-shaped guide rod (27) slides into the inside of the square column (23). A spring groove (29) is provided inside the square column (23) located on one side of the mounting cavity (26). A return spring (28) is sleeved on the outside of the arc-shaped guide rod (27). The two ends of the return spring (28) are respectively connected to the outer wall of the porous stirring blade (25) and the inside of the spring groove (29).

5. The topical gel preparation device according to claim 4, characterized in that, The drive mechanism (7) includes a second motor (73) fixedly connected to the F-type frame (5). The output shaft of the second motor (73) rotatably passes through the outer wall of the F-type frame (5) and is fixedly connected to a first gear (74). A second gear (75) is meshed with one side of the first gear (74). A rotating column (76) is fixedly sleeved inside the second gear (75). The rotating column (76) rotatably passes through the inside of the F-type frame (5) and is fixedly connected to the gear disc (8).

6. The topical gel preparation device according to claim 5, characterized in that, The rotating column (76) is fixedly inserted inside the gear plate (8). A reciprocating screw (71) is fixedly connected to the top of the rotating column (76). The top of the reciprocating screw (71) is rotatably connected to the top of the F-type frame (5). A slider (72) that cooperates with the reciprocating screw (71) is sleeved on the outside of the reciprocating screw (71). The slider (72) is fixedly embedded inside the center of the cross (4).

7. The topical gel preparation device according to claim 6, characterized in that, The push-pull device (6) includes a first motor (65) fixedly installed on the top of the F-type frame (5). The output shaft end of the first motor (65) is fixedly connected to a turntable (61). The outer wall of the turntable (61) has multiple sets of screw holes (66) arranged in a ring array. The outer periphery of the turntable (61) is detachably fixed with toothed blocks (62) through bolts and screw holes (66).

8. The topical gel preparation device according to claim 7, characterized in that, The push-pull device (6) also includes a push-pull rod (63) that slides through the reciprocating screw (71), and the outer wall of the push-pull rod (63) is provided with a tooth groove (64) that cooperates with the tooth block (62).

9. The topical gel preparation device according to claim 8, characterized in that, The push-pull rod (63) slides through the inside of the rotating column (76), and the bottom end of the push-pull rod (63) is fixedly connected to the top end of the piston (9).

10. A method of using the topical gel preparation apparatus according to claim 9, characterized in that, Includes the following steps: Step 1: The material for preparing the external gel is injected into the inside of the gel preparation tank (1) through the feed pipe (13). Then, the second motor (73) on the drive mechanism (7) is started. The second motor (73) drives the gear plate (8) to rotate under the action of the first gear (74), the second gear (75) and the rotating column (76). The gear plate (8) drives the four stirring mechanisms (2) to rotate synchronously. Step 2: During the rotation of the stirring mechanism (2), under the action of centrifugal force, the porous stirring blade (25) placed inside the placement cavity (26) will be thrown outward, so that the material inside the gel preparation bucket (1) can be stirred evenly by the porous stirring blade (25) during the unfolding and rotation process. Step 3: While the rotating column (76) drives the toothed disc (8) to rotate, the rotating column (76) will also drive the reciprocating screw (71) to rotate, so that the slider (72) can move up and down on the outer wall of the reciprocating screw (71), thereby driving the cross (4) to move up and down. The cross (4) drives the stirring mechanism (2) to move up and down, so that the porous stirring blade (25) can shake up and down, further stirring the solution inside the gel preparation tank (1); Step 4: After completing the stirring work, turn off the second motor (73), the stirring mechanism (2) stops rotating, the porous stirring blade (25) returns to the inside of the placement cavity (26), and the solution that has been stirred evenly inside the gel preparation bucket (1) is allowed to stand. Step 5: When the solution becomes a gel, the push rod (63) on the pusher (6) is pressed down, so that the push rod (63) pushes down the piston (9), and the gel inside the gel preparation barrel (1) is squeezed out through the feed pipe (11) by the piston (9).

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