A raw material mixing device for sarafloxacin hydrochloride

Abstract

The present invention relates to the field of mixing technology and discloses a mixing device for sarafloxacin hydrochloride raw materials, comprising: a horizontal mixing cylinder, in which a number of mixing baffle plates and a material control mechanism are arranged along the axial direction; each mixing baffle plate is provided with a spreading mechanism, which includes a material receiving plate rotatably connected to the mixing baffle plate, elastic films arranged on the three side edges of the material receiving plate, and a pushing force member composed of a plurality of air storage bags and torsion springs; the air storage bags are connected to the material control mechanism through an air circuit; when the mixing baffle plate drives the material receiving plate to rotate upward from the bottom of the cylinder, the elastic films and the material receiving plate form a concave cavity to grab the raw materials at the bottom layer. Through the innovative design of the spreading mechanism, the present invention realizes the three-dimensional dynamic mixing of raw materials, improves the mixing uniformity. When the mixing baffle plate drives the material receiving plate to rotate to the bottom, the concave cavity formed by the elastic films and the material receiving plate can accurately grab the raw material particles deposited at the bottom layer, effectively breaking the common layering phenomenon of traditional mixing equipment.

Description

Technical Field

[0001] The present invention relates to the field of mixing, and more specifically, it relates to a mixing device for sarafloxacin hydrochloride raw materials. Background Art

[0002] In the pharmaceutical production process of sarafloxacin hydrochloride raw materials (a multiphase mixture containing granules and powders), the mixing uniformity is a key index directly affecting the consistency of drug components and product quality. Traditional horizontal mixing equipment generally adopts a unidirectional rotating blade or a spiral ribbon structure.

[0003] In the preparation process of sarafloxacin hydrochloride, horizontal mixers or fluidized bed mixing equipment are generally used in the raw material mixing link. Due to the significant density difference between the sarafloxacin raw material granules (particle size 0.5 - 2 mm) and the auxiliary powders (80 - 120 μm), phenomena such as the powder depositing below the granular material and large particles floating on the surface are likely to occur during the mixing process, making it impossible to achieve true uniform mixing. Therefore, we propose a mixing device for sarafloxacin hydrochloride raw materials. Summary of the Invention

[0004] The present invention provides a mixing device for sarafloxacin hydrochloride raw materials, which solves the technical problems in the related art that the powder deposits below the granular material, large particles float on the surface, etc., and it is impossible to achieve true uniform mixing.

[0005] The present invention provides a mixing device for sarafloxacin hydrochloride raw materials, including: a horizontal mixing cylinder, in which a number of mixing baffle plates and a material control mechanism are arranged along the axial direction;

[0006] Each mixing baffle plate is equipped with a spreading mechanism, which includes a material holding plate rotatably connected to the mixing baffle plate, elastic rubber sheets arranged on the three side edges of the material holding plate, and a pushing force member composed of a plurality of air storage bags and torsion springs;

[0007] The air storage bags are connected to the material control mechanism through an air path, and the raw material feeding amount is adjusted in real time through air pressure changes;

[0008] When the mixing baffle plate drives the material holding plate to rotate upward from the bottom of the cylinder, the elastic rubber sheets and the material holding plate form a concave cavity to grab the bottom layer of raw materials. When it rotates to a set angle, the elastic rubber sheets generate a deformation rebound through the rebound force of the torsion springs, and uniformly scatter the carried small particle raw materials onto the surface layer of the raw materials.

[0009] Furthermore, a mixing inner cylinder is rotatably arranged on the inner wall of the horizontal mixing cylinder. A temporary storage chamber is arranged at the feeding port end of the horizontal mixing cylinder. A feeding port is arranged at the feeding port of the temporary storage chamber. Convex prisms are arranged on the inner wall of the mixing inner cylinder to drive the raw materials to roll over. A feeding screw propeller is arranged inside the temporary storage chamber.

[0010] Further, the dialing force member includes a rotation control cylinder. The coil spring is located inside the rotating head of the material receiving plate. Both ends of the coil spring are fixedly connected to the rotation control cylinder and the rotating head of the material receiving plate respectively. An arc-shaped magnet chamber is provided below the rotating head of the material receiving plate. A rotating plate chamber is provided at one end of the magnet chamber. A first magnet is fixedly arranged at the end of the magnet chamber far from the rotating plate chamber. A plurality of second magnets with the same magnetism are movably arranged at the end of the magnet chamber close to the rotating plate chamber. The second magnets repel the first magnet.

[0011] Further, a swinging force plate is fixedly arranged on the rotating head inside the rotation control cylinder of the material receiving plate. A magnetic sheet is fixedly arranged on the side of the swinging force plate close to the magnet chamber. An arc-shaped pressing sheet is fixedly arranged on the side of the swinging force plate far from the magnet chamber. The magnetism of the magnetic sheet repels the magnetism of the second magnets.

[0012] Further, three identical and juxtaposed air storage bags are fixedly arranged on the inner wall of the rotating plate chamber. An air outlet hose is arranged at the output end of each of the three air storage bags. The air outlet ends of the three air outlet hoses all penetrate inside the mixing and dialing plate and are connected to the material control mechanism.

[0013] Further, two air outlet ends are provided on the air outlet hose of the first air storage bag close to the swinging force plate. One of the air outlet ends is provided with an expansion bag fixed on the side edge of the mixing and dialing plate. The surface of the expansion bag in the expanded state protrudes from the side edge surface of the mixing and dialing plate. A push-rotating buckle rotatably connected to the mixing and dialing plate is arranged outside the expansion bag. A force-receiving groove is provided inside the inner mixing cylinder. The positions of the force-receiving groove and the push-rotating buckle are aligned with each other. A plurality of rotating beads are rotatably arranged on the outer edges at both ends of the inner mixing cylinder.

[0014] Further, the material control mechanism includes a clamping cylinder cover located at the connection end of the horizontal mixing cylinder and the temporary storage chamber. A sunken plate box is fixedly arranged below the clamping cylinder cover. An inverted triangular lifting plate is slidably arranged inside the sunken plate box. A baffle plate penetrating through the clamping cylinder cover is fixedly arranged above the lifting plate.

[0015] Further, guide columns penetrate through both ends of the lifting plate. The baffle plate slides along the guide columns through the lifting plate. A plurality of elastic bands are fixedly arranged on one side below the lifting plate. The bottoms of the plurality of elastic bands are fixedly connected to the inner bottom wall of the sunken plate box.

[0016] Further, a sliding push block slidably connected to the sunken plate box is arranged on the other side below the lifting plate. An electric push rod is fixedly arranged on one side of the sunken plate box close to the sliding push block. The output end of the electric push rod penetrates through the sunken plate box and is fixedly connected to the sliding push block.

[0017] Further, the control end of the electric push rod is connected with three electromagnetic switches through wires. The three electromagnetic switches are fixed on the inner wall of the temporary storage chamber. Inside the top end of the blade of the feeding propeller, three magnetic balls matching the three electromagnetic switches are rotatably arranged. On one side of each of the three magnetic balls, a telescopic air column is fixedly arranged, and the three telescopic air columns are respectively connected with the air outlet hoses of the three air storage bags.

[0018] The beneficial effects of the present invention are as follows:

[0019] Through the innovative design of the spreading mechanism, the present invention realizes the three-dimensional dynamic mixing of raw materials, significantly improves the mixing uniformity. When the mixing and feeding plate drives the material holding plate to rotate to the bottom, the concave cavity formed by the elastic film and the material holding plate can accurately grab the raw material particles deposited at the bottom layer, effectively breaking the common layering phenomenon of traditional mixing equipment. When rotating to the set angle, the spiral spring drives the elastic film to generate deformation and rebound, and uniformly scatters the small particle raw materials at the bottom layer to the surface layer with a controllable force, forming a cyclic operation mode of "grabbing at the bottom layer - covering at the surface layer". Cooperating with the air pressure regulation system of the air storage bag, the single scattering amount can be adjusted in real time according to the mixing process, ensuring full contact of raw materials with different particle sizes;

[0020] The synergistic effect of the material control mechanism and the spreading mechanism greatly improves the process flexibility of the equipment. The air circuit control system composed of air storage bags can accurately control the grabbing force of the elastic film and the rebound potential energy of the spiral spring by adjusting the air pressure parameters, realizing the adjustment of the feeding amount of 0.5 - 5 kg / batch. This flexible control mechanism enables the equipment to handle both highly fluid micro-powder raw materials and adapt to the mixing requirements of sticky particles. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the structural schematic diagram of the mixing inner cylinder of the present invention;

[0023] Figure 3 is the structural schematic diagram of the spreading mechanism of the present invention;

[0024] Figure 4 is the structural schematic diagram of the push-rotation buckle of the present invention;

[0025] Figure 5 is the structural schematic diagram of the cartridge cover of the present invention;

[0026] Figure 6 is of the present invention Figure 5 magnified schematic diagram at position A;

[0027] Figure 7 is the internal structural schematic diagram of the sink plate box of the present invention;

[0028] Figure 8It is a schematic structural diagram of the material holding plate of the present invention;

[0029] Figure 9 It is a schematic internal structure diagram of the rotation control cylinder of the present invention;

[0030] Figure 10 It is the Figure 4 Enlarged schematic diagram at position B in the present invention.

[0031] In the figure: 11, horizontal mixing cylinder; 12, temporary storage chamber; 13, feeding port; 14, inner mixing cylinder; 17, mixing and feeding plate; 18, feeding screw propeller; 19, rotating bead; 2, material control mechanism; 21, cartridge cover; 22, sink plate box; 23, electric push rod; 24, electromagnetic switch; 25, baffle plate; 26, lifting plate; 27, guiding column; 28, elastic band; 29, sliding and pushing block; 3, spreading mechanism; 31, material holding plate; 32, elastic film; 33, rotation control cylinder; 34, coil spring; 35, extrusion sheet; 36, swing force plate; 37, magnetic sheet; 38, rotating plate chamber; 39, storage airbag; 301, magnetic block chamber; 302, magnetic block one; 303, magnetic block two; 41, stress groove; 42, push and rotate buckle; 43, expansion bladder; 51, telescopic air column; 52, magnetic ball. Detailed implementation manners

[0032] Now, the subject matter described herein will be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0033] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a raw material mixing device for sarafloxacin hydrochloride includes: a horizontal mixing cylinder 11, and a plurality of mixing and feeding plates 17 and a material control mechanism 2 distributed along the axial direction are provided inside the horizontal mixing cylinder 11;

[0034] Each mixing and feeding plate 17 is provided with a spreading mechanism 3, and this spreading mechanism 3 includes a material holding plate 31 rotatably connected to the mixing and feeding plate 17, elastic films 32 provided on three side edges of the material holding plate 31, and a pushing force member composed of a plurality of storage airbags 39 and coil springs 34;

[0035] The storage airbag 39 is connected to the material control mechanism 2 through an air path, and the raw material feeding amount is adjusted in real time through air pressure changes;

[0036] When the mixing and feeding plate 17 drives the material holding plate 31 to rotate upward from the bottom of the cylinder body, the elastic film 32 and the material holding plate 31 form a concave cavity to grab the bottom raw materials. When it rotates to a set angle, the elastic film 32 deforms and rebounds due to the elastic force of the coil spring 34, and uniformly scatters the small particle raw materials carried on the surface of the raw materials.

[0037] The inner wall of the horizontal mixing cylinder 11 is rotatably provided with a mixing inner cylinder 14. The feeding port end of the horizontal mixing cylinder 11 is provided with a temporary storage chamber 12. The feeding port of the temporary storage chamber 12 is provided with a feeding port 13. The inner wall of the mixing inner cylinder 14 is provided with protruding prisms for driving the raw materials to roll. The inside of the temporary storage chamber 12 is provided with a feeding screw propeller 18.

[0038] As Figure 5 、 Figure 6 and Figure 7 shown, the dialing force member includes a rotation control cylinder 33. The coil spring 34 is located inside the rotating head of the material holding plate 31. The two ends of the coil spring 34 are respectively fixedly connected to the rotation control cylinder 33 and the rotating head of the material holding plate 31. And an arc-shaped magnet chamber 301 is opened below the rotating head of the material holding plate 31. One end of the magnet chamber 301 is provided with a rotating plate chamber 38. A first magnet 302 is fixedly arranged at one end of the magnet chamber 301 far from the rotating plate chamber 38. A plurality of second magnets 303 with the same magnetism are movably arranged at one end of the magnet chamber 301 close to the rotating plate chamber 38. And the second magnets 303 and the first magnet 302 repel each other.

[0039] A swing force plate 36 is fixedly arranged on the rotating head of the material holding plate 31 located inside the rotation control cylinder 33. A magnetic sheet 37 is fixedly arranged on one side of the swing force plate 36 close to the magnet chamber 301. An arc-shaped extrusion sheet 35 is fixedly arranged on the side of the swing force plate 36 far from the magnet chamber 301. The magnetism of the magnetic sheet 37 repels the magnetism of the second magnets 303.

[0040] The inner wall of the rotating plate chamber 38 is fixedly provided with three identical and juxtaposed air storage bags 39. The output ends of the three air storage bags 39 are each provided with an air outlet hose. And the air outlet ends of the three air outlet hoses all penetrate inside the mixing and feeding plate 17 and are connected to the material control mechanism 2.

[0041] The air outlet hose of the first air storage bag 39 close to the swing force plate 36 is provided with two air outlet ends. One of the air outlet ends is provided with an expansion bag 43 fixed on the side edge of the mixing and feeding plate 17. The surface of the expansion bag 43 in the expanded state protrudes from the side edge surface of the mixing and feeding plate 17. A push rotation buckle 42 rotatably connected to the mixing and feeding plate 17 is arranged outside the expansion bag 43. A force receiving groove 41 is opened inside the mixing inner cylinder 14. The positions of the force receiving groove 41 and the push rotation buckle 42 are aligned with each other. A plurality of rotating beads 19 are rotatably arranged on the outer edges at both ends of the mixing inner cylinder 14.

[0042] The material control mechanism 2 includes a cartridge cover 21 located at the connection end of the horizontal mixing cylinder 11 and the temporary storage chamber 12. A sunken plate box 22 is fixedly arranged below the cartridge cover 21. An inverted triangular lifting plate 26 is slidably arranged inside the sunken plate box 22. A baffle plate 25 that penetrates through the cartridge cover 21 is fixedly arranged above the lifting plate 26.

[0043] Guide columns 27 penetrate through both ends of the lifting plate 26. The baffle plate 25 slides along the guide columns 27 through the lifting plate 26. A plurality of elastic bands 28 are fixedly arranged on one side below the lifting plate 26. The bottoms of the plurality of elastic bands 28 are fixedly connected to the inner bottom wall of the sunken plate box 22.

[0044] On the other side below the lifting plate 26, a sliding push block 29 slidably connected to the sunken plate box 22 is arranged. A linear electric actuator 23 is fixedly arranged on one side of the sunken plate box 22 close to the sliding push block 29. The output end of the linear electric actuator 23 penetrates through the sunken plate box 22 and is fixedly connected to the sliding push block 29.

[0045] The control end of the linear electric actuator 23 is connected with three electromagnetic switches 24 through wires. The three electromagnetic switches 24 are fixed on the inner wall of the temporary storage chamber 12. Three magnetic balls 52 that are mutually matched with the three electromagnetic switches 24 are rotatably arranged inside the blade tips of the feeding propeller 18. One side of each of the three magnetic balls 52 is fixedly provided with a telescopic air column 51. The three telescopic air columns 51 are respectively connected to the air outlet hoses of the three air storage bags 39.

[0046] Particles and powders of different diameters are added into the temporary storage chamber 12 through the feeding port 13. The raw material particles and powders accumulate in the temporary storage chamber 12 and wait to be pushed by the feeding propeller 18. When the feeding propeller 18 starts to work, it pushes the raw material particles and powders in the temporary storage chamber 12 into the inner mixing cylinder 14. After the raw material particles and powders enter the inner mixing cylinder 14, under the action of the mixing baffle plate 17, they start to move outward along the inner wall of the inner mixing cylinder 14 and finally are discharged from the outlet.

[0047] As Figure 8 、 Figure 9 and Figure 10 shown, when the raw material particles and powders enter the inner mixing cylinder 14 from the temporary storage chamber 12, the raw material particles and powders piled up in the middle and bottom layers of the inner mixing cylinder 14 impact on the material holding plate 31. The material holding plate 31 is impacted by the raw material particles and powders and rotates in the opposite direction of the mixing baffle plate 17, and stores a part of the raw material particles and powders. When this material holding plate 31 rotates 270° along with the mixing baffle plate 17, through the driving force of the driving part of the rotation control cylinder 33, the raw material particles and powders stored in the elastic film 32 are scattered and sprinkled on the middle layer of the inner mixing cylinder 14 along with the inertia of the rotation direction of the mixing baffle plate 17, ensuring that the raw material particles and powders are evenly laid at the bottom of the inner mixing cylinder 14, reducing the deposition of powder below the granular material, and the large particles floating on the surface.

[0048] When the mixing deflector 17 rotates to the bottom of the mixing inner cylinder 14, under the action of the high-speed rotating mixing deflector 17, a large number of raw material particles and powder, part of them impact on the closed material receiving plate 31, and the other part impact on the mixing deflector 17 and are pushed by the mixing deflector 17 to slide along the inner wall of the mixing inner cylinder 14. The raw material particles and powder stored in the material receiving plate 31 and the elastic film 32 rotate with the mixing deflector 17 and do not contact the inner wall of the mixing inner cylinder 14. Therefore, it is beneficial to reduce the raw material particles and powder with too thick accumulation from skimming over the inner wall of the mixing inner cylinder 14, achieving the effect of uniform material distribution and enabling the raw material particles and powder to be mixed more evenly.

[0049] Quantitatively feed materials into the temporary storage chamber 12 through the feeding port 13 at a rate of 500 kg / h, and the feeding screw propeller 18 pushes the raw materials into the mixing inner cylinder 14 at a rotational speed of 30 rpm. The mixing inner cylinder 14 rotates in the same direction, and the convex prisms on its inner wall cause the raw materials to generate turbulent motion, increasing the initial mixing efficiency by about 40%.

[0050] Until the raw material particles and powder stored in the material receiving plate 31 and the elastic film 32 rotate 270°, under the dual action of gravity and the magnet block one 302, multiple magnet blocks two 303 are pushed to quickly slide to one end far from the magnet block one 302. At this time, the repulsive force of the multiple magnet blocks two 303 acts on the magnetic sheet 37, pushing the magnetic sheet 37 to move in the reverse direction. Coupled with the retraction elastic force of the coil spring 34, under the dual action of the two, the swing force plate 36 is driven to rotate along the rotation direction of the mixing deflector 17. The material receiving plate 31 is driven to rotate through the swing force plate 36, so that the raw material particles and powder stored in the material receiving plate 31 and the elastic film 32 can be scattered along the inertia of the rotation direction of the mixing deflector 17 and fall into the mixing inner cylinder 14. The uniformly distributed raw material particles and powder can contact the mixing inner cylinder 14 more fully, thereby improving the mixing and stirring efficiency.

[0051] When the mixing deflector 17 drives the material receiving plate 31 to rotate upward from the bottom at 18 rpm, the elastic film 32 and the material receiving plate 31 form a concave cavity with a depth of 8 - 12 mm, and the single - time grasping amount of the bottom - layer raw materials reaches 50 - 80 g. When rotating to the 270° position, the coil spring 34 releases the pre - tightening force with an elastic coefficient of 12 N / mm. Combined with the 0.8 N repulsive force between the magnet block one 302 and the magnet block two 303, the material receiving plate 31 completes a 60° rapid flip in 0.3 seconds, throwing the raw materials onto the surface layer with an initial velocity of 3 - 5 m / s, realizing a 65% increase in the inter - layer permeability between the particles and the powder layer.

[0052] The more raw material particles and powder accumulate at the bottom of the mixing inner cylinder 14, the larger the rotation angle of the material receiving plate 31, and the more raw material particles and powder are stored.

[0053] When raw material particles and powder accumulate at the bottom of the mixing inner cylinder 14, the swinging force plate 36 rotates as the material holding plate 31 opens. The more raw material particles and powder accumulate, the larger the rotation angle of the swinging force plate 36, so the longer the extruded sheet 35 pulled out, and the more the storage airbag 39 is extruded;

[0054] When the extruded sheet 35 extrudes the first storage airbag 39, the air in the first storage airbag 39 flows into the expansion bladder 43 through the air outlet hose, causing the expansion bladder 43 to expand. The expansion of the expansion bladder 43 supports the push-rotating buckle 42. After that, when the push-rotating buckle 42 rotates to the force-receiving groove 41 position, the expansion bladder 43 instantly expands to support the push-rotating buckle 42, so that the push-rotating buckle 42 snaps into the force-receiving groove 41, and drives the mixing inner cylinder 14 to rotate 90° through the mixing baffle 17;

[0055] When a large amount of raw material particles and powder accumulate at the bottom of the mixing inner cylinder 14, it indicates that there may be a large amount of raw materials in the mixing inner cylinder 14. Therefore, by rotating the mixing inner cylinder 14 and changing the position at the bottom of the mixing inner cylinder 14, the powder at the bottom layer of the raw materials can be driven to rise with the rotation of the mixing inner cylinder 14 and be re-spread.

[0056] When a large amount of raw material particles and powder accumulate at the bottom of the mixing inner cylinder 14, the longer the extruded sheet 35 pulled out, the more the storage airbag 39 is extruded. The air in the three storage airbags 39 flows into the telescopic air column 51 through the air outlet hose respectively, causing it to expand and extend. The extension of the telescopic air column 51 pushes the magnetic ball 52 to rotate, so that the side of the magnetic ball 52 with the magnet faces the outer ring position of the feeding propeller 18. As many telescopic air columns 51 expand as there are storage airbags 39 being extruded. After that, when the end of the feeding propeller 18 with the magnetic ball 52 rotates to the positions of the three electromagnetic switches 24, at the moment when the magnetic ball 52 approaches the electromagnetic switch 24, the electromagnetic switch 24 controls the electric push rod 23 to push the sliding block 29 to slide, so as to push the baffle 25 to rise through the sliding block 29. The higher the baffle 25 rises, the fewer raw material particles and powder enter the mixing inner cylinder 14;

[0057] The three electromagnetic switches 24 respectively control different extension distances of the electric push rod 23. When a large amount of raw material particles and powder accumulate at the bottom of the mixing inner cylinder 14, the amount of raw materials entering the mixing inner cylinder 14 can be controlled according to the accumulation amount.

[0058] The embodiments of the present invention have been described above, but the present invention is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A raw material mixing device for sarafloxacin hydrochloride, characterized in that, Including: A horizontal mixing cylinder (11), wherein a number of mixing and feeding plates (17) and a material control mechanism (2) are arranged axially in the horizontal mixing cylinder (11); Each of the mixing and feeding plates (17) is provided with a spreading mechanism (3), and the spreading mechanism (3) includes a material holding plate (31) rotatably connected to the mixing and feeding plate (17), elastic rubber sheets (32) arranged on three side edges of the material holding plate (31), and a pushing force member composed of a plurality of air storage bags (39) and a torsion spring (34); The air storage bag (39) is connected to the material control mechanism (2) through an air circuit, and the raw material feeding amount is adjusted in real time through air pressure changes; When the mixing and feeding plate (17) drives the material holding plate (31) to rotate upward from the bottom of the cylinder, the elastic rubber sheet (32) and the material holding plate (31) form a concave cavity to grab the bottom layer of raw materials. When it rotates to a set angle, the elastic rubber sheet (32) deforms and rebounds due to the rebounding force of the torsion spring (34), and the small particle raw materials carried are evenly scattered on the surface layer of the raw materials; The pushing force member includes a control rotating cylinder (33), the torsion spring (34) is located inside the rotating head of the material holding plate (31), and both ends of the torsion spring (34) are fixedly connected to the control rotating cylinder (33) and the rotating head of the material holding plate (31) respectively. An arc-shaped magnet chamber (301) is opened below the rotating head of the material holding plate (31), and a rotating plate chamber (38) is arranged at one end of the magnet chamber (301); A swing force plate (36) is fixedly arranged on the rotating head of the material holding plate (31) located inside the control rotating cylinder (33), and an arc-shaped extrusion sheet (35) is fixedly arranged on one side of the swing force plate (36) away from the magnet chamber (301); Three identical and juxtaposed air storage bags (39) are fixedly arranged on the inner wall of the rotating plate chamber (38), an air outlet hose is arranged at the output end of each of the three air storage bags (39), and the air outlet ends of the three air outlet hoses all penetrate inside the mixing and feeding plate (17) and are connected to the material control mechanism (2); A mixing inner cylinder (14) is rotatably arranged on the inner wall of the horizontal mixing cylinder (11). When raw material particles and powder accumulate at the bottom of the mixing inner cylinder (14), the swing force plate (36) rotates as the material holding plate (31) opens. The more raw material particles and powder accumulate, the larger the rotation angle of the swing force plate (36), so the longer the pulled extrusion sheet (35) is, and the more the air storage bags (39) are squeezed.

2. The mixing device for sarafloxacin hydrochloride raw materials according to claim 1, wherein A temporary storage chamber (12) is arranged at the feeding port end of the horizontal mixing cylinder (11), a feeding port (13) is arranged at the feeding port of the temporary storage chamber (12), convex prisms are arranged on the inner wall of the mixing inner cylinder (14) for driving the raw materials to roll, and a feeding screw propeller (18) is arranged inside the temporary storage chamber (12).

3. The mixing device for sarafloxacin hydrochloride raw materials according to claim 1, wherein A first magnet (302) is fixedly arranged at one end of the magnet chamber (301) away from the rotating plate chamber (38), a number of second magnets (303) with the same magnetism are movably arranged at one end of the magnet chamber (301) close to the rotating plate chamber (38), and the second magnets (303) repel the first magnet (302).

4. The mixing device for sarafloxacin hydrochloride raw materials according to claim 1, characterized in that, On one side of the swing force plate (36) close to the magnet chamber (301), a magnetic sheet (37) is fixedly arranged, and the magnetism of the magnetic sheet (37) repels the magnetism of the second magnet (303).

5. The mixing device for sarafloxacin hydrochloride raw materials according to claim 1, characterized in that, Two air outlet ends are provided on the air outlet hose of the first air storage bag (39) close to the swing force plate (36). One of the air outlet ends is provided with an expansion bag (43) fixed to the side edge of the mixing baffle plate (17). The surface of the expansion bag (43) in the expanded state protrudes from the side edge surface of the mixing baffle plate (17). A push-turn buckle (42) rotatably connected to the mixing baffle plate (17) is arranged outside the expansion bag (43). A force-receiving groove (41) is formed inside the mixing inner cylinder (14), and the positions of the force-receiving groove (41) and the push-turn buckle (42) are aligned with each other. A plurality of rotating beads (19) are rotatably arranged on the outer edges at both ends of the mixing inner cylinder (14).

6. The mixing device for sarafloxacin hydrochloride raw materials according to claim 2, characterized in that, The material control mechanism (2) includes a cartridge cover (21) located at the connection end of the horizontal mixing cylinder (11) and the temporary storage chamber (12). A sunken plate box (22) is fixedly arranged below the cartridge cover (21). An inverted triangular lifting plate (26) is slidably arranged inside the sunken plate box (22). A baffle plate (25) penetrating through the cartridge cover (21) is fixedly arranged above the lifting plate (26).

7. The mixing device for sarafloxacin hydrochloride raw materials according to claim 6, wherein, Guide columns (27) penetrate through both ends of the lifting plate (26), and the baffle plate (25) slides along the guide columns (27) through the lifting plate (26). A plurality of elastic bands (28) are fixedly arranged on one side below the lifting plate (26), and the bottoms of the plurality of elastic bands (28) are fixedly connected to the inner bottom wall of the sunken plate box (22).

8. The mixing device for sarafloxacin hydrochloride raw materials according to claim 7, wherein On the other side below the lifting plate (26), a sliding push block (29) slidably connected to the sunken plate box (22) is arranged. An electric push rod (23) is fixedly arranged on one side of the sunken plate box (22) close to the sliding push block (29). The output end of the electric push rod (23) penetrates through the sunken plate box (22) and is fixedly connected to the sliding push block (29).

9. The mixing device for sarafloxacin hydrochloride raw materials according to claim 8, wherein, The control end of the electric push rod (23) is connected with three electromagnetic switches (24) through a wire. The three electromagnetic switches (24) are fixed on the inner wall of the temporary storage chamber (12). Three magnetic balls (52) matching the three electromagnetic switches (24) are rotatably arranged inside the blade tips of the feeding screw propeller (18). One side of each of the three magnetic balls (52) is fixedly provided with a telescopic air column (51), and the three telescopic air columns (51) are respectively connected to the air outlet hoses of the three air storage bags (39).

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