Raw material mixing device for pharmaceutical production

Abstract

The invention relates to the field of pharmaceutical production, in particular to a pharmaceutical production raw material mixing device which comprises a mixing tank, a material conveying pipe is vertically and fixedly mounted in the mixing tank, a spiral feeder is rotatably mounted in the material conveying pipe, a material dispersing disc is rotatably mounted in the middle of the material conveying pipe, and a stirring and drying assembly is mounted at the bottom of the material conveying pipe. The medicine raw materials in the mixing tank can be conveyed upwards through the material conveying pipe and are mixed and dried through material scattering of the material scattering disc and stirring and drying of the stirring and drying assembly, so that mixing and drying operation of the materials is achieved, the drying efficiency is improved, the labor intensity of workers is reduced, and the labor intensity of workers is reduced. And the problem that the mixing quality is influenced due to caking of the crushed raw materials in the mixing process due to release of water in the crushed raw materials is avoided.

Description

Technical Field

[0001] The invention relates to the field of medicine production, in particular to a raw material mixing device for medicine production. Background Art

[0002] In the pharmaceutical industry, mixing is an important link in the production process of solid dosage forms, which is related to the entire production cycle and the uniformity of product quality. Evenly mixed materials have uniform properties, smooth flow, and small content changes, while unevenly mixed materials may cause uneven particle size distribution, uneven color, and uneven drug content, resulting in downstream process problems.

[0003] Before mixing, the raw materials of medicines often need to be ground to crush the active ingredients in the raw materials and mix them with the admixture. Due to the release of water in the crushed raw materials, the raw materials often clump during the mixing process of existing medicine mixing devices, thus affecting the mixing quality. Summary of the invention

[0004] The purpose of the present invention is to provide a raw material mixing device for drug production to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides a raw material mixing device for drug production, comprising a mixing tank, a material transport pipe is vertically fixedly installed in the mixing tank, a plurality of feed ports and discharge ports are correspondingly opened on the bottom and top side walls of the material transport pipe, a screw feeder is rotatably installed in the material transport pipe, one end of the screw feeder extends out of the material transport pipe and is driven to rotate by a No. 1 rotating member installed at one end of the mixing tank;

[0006] A group of feeding chutes are rotatably installed at the corresponding discharge ports on the top of the conveying pipe. The multiple groups of feeding chutes are connected to the upper end of the rotating shaft of the screw feeder through a No. 1 transmission component. The rotation of the screw feeder drives the multiple groups of feeding chutes to swing back and forth in the vertical direction.

[0007] A bulk material disc is rotatably mounted in the middle of the material transport pipe, and the upper end of the bulk material disc is elastically connected to a limiting collar coaxially fixed on the material transport pipe, a gear sleeve is fixedly connected to the bottom of the limiting collar, and meshing teeth are arranged on the upper end surface of the bulk material disc, and the gear sleeve and the meshing teeth are meshed with each other;

[0008] A stirring and drying assembly is installed at the bottom of the material transport pipe, and the stirring and drying assembly includes a multi-layer agitator, and the agitator includes a rotary main pipe, one end of multiple groups of the rotary main pipes is rotatably installed on the side wall of the material transport pipe, and the other end is rotatably installed on the side wall of the mixing tank, and extends out to be rotatably connected with the wind-heating assembly installed on the outside of the mixing tank, and multiple groups of fixed branch pipes are fixedly installed on the side of the rotary main pipe, and stirring blades are fixed on the outside of the fixed branch pipes. Multiple groups of rotary main pipes on each layer are connected by transmission through the No. 2 transmission assembly, and one group of rotary main pipes is driven to rotate by the No. 2 rotating member on the outside of the mixing tank, and air supply holes are opened on the fixed branch pipes;

[0009] The bulk material tray is connected to the rotary main pipe of the agitator located on the upper layer through a No. 3 transmission component.

[0010] As a further solution of the present invention, the first transmission assembly includes a rotating disk and a transmission arm;

[0011] The rotary disc is coaxially mounted on the upper end of the rotary shaft of the screw feeder, and a zigzag closed limiting groove is provided on the side wall of the rotary disc;

[0012] One end of the transmission arm is rotatably connected to the middle part of the feeding chute, and the other end is fixed with a guide column, and the guide column is limitedly slidably connected in the limit groove.

[0013] As a further solution of the present invention, a material guide chute is provided at the upper end of the bulk material tray, and the material guide chute is slidably installed in a sliding cavity opened at the bottom of the limiting collar, and is rotatably installed in the sliding cavity of the limiting collar and elastically connected to the connecting ring through multiple sets of connecting springs.

[0014] As a further solution of the present invention, a plurality of groups of screening nets are fixedly installed on the bulk material tray.

[0015] As a further solution of the present invention, the second transmission assembly includes a separation sleeve, a transmission bevel gear and a rotary bevel gear ring;

[0016] The separation sleeve is coaxially fixedly installed on the outside of the feeding pipe, and a mounting hole for rotational connection with the corresponding rotary main pipe is provided on the separation sleeve;

[0017] A plurality of groups of the transmission bevel gears are coaxially mounted on the ends of the corresponding rotating main pipes;

[0018] The rotary bevel gear ring is rotatably mounted on the outside of the feeding pipe and is meshedly connected with the corresponding transmission bevel gear.

[0019] As a further solution of the present invention, the third transmission assembly includes a rotary sleeve and a driven bevel gear ring;

[0020] The rotary sleeve is rotatably mounted on the outside of the material transport pipe and is rotatably connected to a connecting ring fixedly mounted on the bottom of the bulk material tray, wherein a plurality of limit bars are fixedly mounted on the side wall of the connecting ring, and the limit bars are slidably connected to the limit grooves on the inner side of the upper end of the rotary sleeve;

[0021] The driven bevel gear ring is fixedly installed at the bottom of the rotating sleeve and is meshedly connected with the transmission bevel gear at the end of the corresponding rotating tube.

[0022] As a further solution of the present invention, the wind heating component includes a wind heating coil and a heating bellows;

[0023] The heating bellows is fixedly installed on the outside of the mixing tank and is used to draw air from the environment and heat it;

[0024] Multiple groups of the air-heating coils are fixedly installed on the outside of the mixing tank and connected to the heating bellows. Multiple groups of exhaust ports are opened on the side of the air-heating coils close to the mixing tank, and the exhaust ports are sealed and rotatably connected to the ends of the corresponding rotating main pipes.

[0025] As a further solution of the present invention, multiple layers of the agitators are staggeredly installed on the side of the material transport pipe in the vertical direction.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention provides a material transport pipe capable of transporting pharmaceutical raw materials upward in a mixing tank, and at the same time, a rotatable feeding chute is provided at a plurality of discharge ports at the top of the material transport pipe, a rotatable and vibrating bulk material tray is provided at the bottom of the feeding chute, and a stirring and drying component is provided at the bottom of the bulk material tray. The stirring and drying component includes a multi-layer stirrer, and the rotary main pipe of the stirrer is rotatably connected to the wind and heat component installed outside the mixing tank. When the operator places the pharmaceutical raw materials into the mixing tank:

[0028] 1. The screw feeder in the conveying pipe is driven by the No. 1 driving motor to rotate, and the pharmaceutical raw materials at the bottom of the mixing tank are conveyed upward. When the pharmaceuticals are conveyed outward through the discharge port of the conveying pipe, they are evenly conveyed to the bulk material tray through the reciprocating swing of the feeding chute. In the process of feeding the feeding chute, the bulk material tray rotates in the horizontal direction and reciprocates in the vertical direction, which improves the bulk material quality of the bulk material tray and improves the efficiency of evenly conveying the pharmaceutical raw materials downward through the bulk material tray;

[0029] 2. The pharmaceutical raw materials scattered from the bulk tray are stirred by the rotation of multiple groups of stirrers in the stirring and drying component. At the same time, during the stirring process, the heated gas in the wind-heating component can be transported through the rotary main pipe and multiple groups of fixed branch pipes, and discharged through the air supply holes on the fixed branch pipes to dry the falling and stirred pharmaceutical raw materials, thereby achieving drying operation while ensuring the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of the overall perspective one of a raw material mixing device for drug production in the present invention.

[0031] Figure 2 This is a schematic diagram of the overall structure of a raw material mixing device for drug production in the present invention from the second perspective

[0032] Figure 3 The figure is an internal cross-sectional view of a raw material mixing device for drug production in the present invention.

[0033] Figure 4 This is a schematic structural diagram of the internal perspective of a raw material mixing device for drug production in the present invention.

[0034] Figure 5 This is a schematic structural diagram of the second internal perspective of a raw material mixing device for drug production in the present invention.

[0035] Figure 6 It is a structural cross-sectional view of the material transport pipe in the present invention.

[0036] Figure 7 It is a schematic diagram of the structure of the stirring and drying component in the present invention.

[0037] In the attached drawings: 1, mixing tank; 101, feed trough; 2, air-heating coil; 3, heating bellows; 4, No. 1 driving motor; 5, No. 2 driving motor; 6, material transport pipe; 601, feed port; 602, discharge port; 7, screw feeder; 8, bulk material tray; 801, screening net; 9, guide ring; 10, limit collar; 11, connecting spring; 12, meshing teeth; 13, gear sleeve; 14, transmission arm; 141, guide column; 15, guide chute; 16, discharge nozzle; 17, agitator; 171, rotary main pipe; 172, fixed branch pipe; 173, stirring blade; 18, separation sleeve; 19, rotary bevel gear ring; 20, driven bevel gear ring; 21, rotary sleeve; 22, connecting ring; 23, transmission bevel gear. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0039] like Figures 1 to 7 As shown, in an embodiment of the present invention, a raw material mixing device for drug production includes a mixing tank 1, a material delivery pipe 6 is vertically fixedly installed in the mixing tank 1, a plurality of feed ports 601 and a discharge port 602 are correspondingly opened on the bottom and top side walls of the material delivery pipe 6, a screw feeder 7 is rotatably installed in the material delivery pipe 6, one end of the screw feeder 7 extends out of the material delivery pipe 6, and is driven to rotate by a rotating member No. 1 installed at one end of the mixing tank 1;

[0040] A group of feeding chutes are rotatably installed at the corresponding discharge ports 602 on the top of the conveying pipe 6. The multiple groups of feeding chutes are connected to the upper end of the rotating shaft of the screw feeder 7 through a transmission assembly No. 1. The rotation of the screw feeder drives the multiple groups of feeding chutes to swing back and forth in the vertical direction.

[0041] A bulk material tray 8 is rotatably mounted in the middle of the material transport pipe 6, and the upper end of the bulk material tray 8 is elastically connected to a limiting collar 10 coaxially fixed on the material transport pipe 6, and a gear sleeve 13 is fixedly connected to the bottom of the limiting collar 10, and a guide ring 9 is provided on the upper end surface of the bulk material tray 8, and meshing teeth 12 are installed on the guide ring 9, and the gear sleeve 13 meshes with the meshing teeth 12;

[0042] A stirring and drying assembly is installed at the bottom of the material transport pipe 6, and the stirring and drying assembly includes a multi-layer stirrer 17, and the stirrer 17 includes a rotary main pipe 171, one end of multiple groups of the rotary main pipes 171 is rotatably installed on the side wall of the material transport pipe 6, and the other end is rotatably installed on the side wall of the mixing tank 1, and extends out to be rotatably connected with the wind-heating assembly installed on the outside of the mixing tank 1, and multiple groups of fixed branch pipes 172 are fixedly installed on the side of the rotary main pipe 171, and stirring blades 173 are fixed on the outside of the fixed branch pipes 172. Multiple groups of rotary main pipes 171 on each layer are connected by transmission through the No. 2 transmission assembly, and one group of the rotary main pipes 171 is driven to rotate by the No. 2 rotating member on the outside of the mixing tank 1, and air supply holes are opened on the fixed branch pipes 172;

[0043] The bulk material tray 8 is connected to the rotary main pipe 171 of the agitator 17 located on the upper layer through the third transmission assembly;

[0044] Specifically, the No. 1 rotating member in the present invention is the No. 1 driving motor 4, and the No. 2 rotating member is the No. 2 driving motor 5. When the drug raw material is placed into the mixing tank 1 by the operator through the feeding slot 101 on the side of the mixing tank 1, the No. 1 driving motor 4 and the No. 2 driving motor 5 are started synchronously, wherein the No. 1 driving motor 4 drives the spiral feeder 7 in the material transport pipe 6 to rotate, and the drug raw material located at the bottom of the mixing tank 1 is transported upward, and discharged from the discharge port 602 at the top of the drug transport pipe 6. The present invention is provided with a discharge nozzle 16 at the discharge port 602 to guide the drug raw material to be transported into the feeding chute;

[0045] When the medicine is transported outward through the discharge port 602, it is transported to the bulk material tray 8 through the feeding chute, and during the feeding process, the feeding chute is driven by the screw feeder 7 connected to it to rotate and swing back and forth in the vertical direction, so that the medicine raw materials can be evenly scattered on the inner and outer rings of the bulk material tray 8, so as to avoid the medicine raw materials being transported through the feeding chute and accumulating on the bulk material tray 8, which affects the bulk material operation of the bulk material tray 8. During the bulk material process, the bulk material tray 8 is driven by the third transmission component to rotate synchronously, and through the meshing action of the gear sleeve 13 and the meshing teeth 12, the bulk material tray 8 rotates in the horizontal direction and reciprocates in the vertical direction, thereby improving the bulk material effect of the bulk material tray 8 and further improving the efficiency of uniformly transporting the medicine raw materials downward through the bulk material tray 8.

[0046] The raw materials of medicines scattered through the bulk material tray 8 can be stirred by the agitator 17 in the stirring and drying assembly, and during the stirring process, the heated gas in the wind heating assembly can be transported through the rotating main pipe 171 and multiple groups of fixed branch pipes 172, and discharged through the air supply holes on the fixed branch pipes 172 to dry the raw materials of medicines in the falling stirring state. Thus, the drying operation is achieved while ensuring the mixing effect.

[0047] like Figure 3 and Figure 5 As shown, in the embodiment of the present invention, the No. 1 transmission assembly includes a turntable and a transmission arm 14, wherein the turntable is coaxially installed on the upper end of the rotating shaft of the screw feeder 7, and the side wall of the turntable is provided with a tortuous closed limit groove, one end of the transmission arm 14 is rotatably connected to the middle of the feeding chute, and the other end is fixed with a guide column 141, and the guide column 141 is limitedly slidably connected in the limit groove, and the No. 1 driving motor 4 drives the screw feeder 7 to rotate while the turntable installed on the rotating shaft of the screw lifter rotates synchronously, and multiple groups of guide columns 141 at one end of the transmission arm 14 are arranged along the side of the turntable The guide post 141 slides in the limit groove, and during the sliding of the guide post 141 in the limit groove, the vertical height of the guide post 141 changes periodically in the vertical direction, and drives one end of the transmission arm 14 to reciprocate in the vertical direction, and the upper end of the feeding chute is rotatably mounted on the discharge nozzle 16 of the discharge port 602 of the plastic pipe, and finally the reciprocating transmission arm 14 drives the feeding chute to reciprocate in the vertical direction at a fixed angle, so that the feeding chute can periodically and evenly spread the pharmaceutical raw materials on the disk surface of the bulk material tray 8, thereby preventing the pharmaceutical raw materials from accumulating in a fixed size area of ​​the bulk material tray 8 during the feeding process of the bulk material tray 8;

[0048] Of course, in actual design, the turntable and transmission arm 14 in the No. 1 transmission component may also use other components that can drive the feeding chute to swing back and forth. The present invention does not impose a rigid requirement on the No. 1 transmission component.

[0049] like Figure 4 and Figure 6 As shown, in the embodiment of the present invention, a material guide chute 15 is provided at the upper end of the bulk material tray 8, and the material guide chute 15 is slidably installed in the sliding cavity opened at the bottom of the limiting collar 10, and is elastically connected to the connecting ring 22 rotatably installed in the sliding cavity of the limiting collar 10 through multiple groups of connecting springs 11. In the present invention, during the process of rotary driving, the bulk material tray 8 is meshed with the gear sleeve 13 and the meshing teeth 12, so that the bulk material tray 8 reciprocates and vibrates in the vertical direction, so that the pharmaceutical raw materials on the bulk material tray 8 collide and rub against each other during the downward conveying process, which greatly improves the efficiency of passing through the bulk material tray 8;

[0050] Among them, multiple groups of screening nets 801 are fixedly installed on the bulk material tray 8. The screening nets 801 can collide and rub with the pharmaceutical raw materials to break up the agglomerated pharmaceutical raw materials and break up large pieces of pharmaceutical raw materials into raw materials with smaller particle sizes, thereby facilitating subsequent mixing and drying operations. Of course, the screening nets 801 can also be replaced by other screening components such as inclined screening plates.

[0051] like Figure 4 and Figure 6 As shown, in the embodiment of the present invention, the second transmission assembly includes a separation sleeve 18, a transmission bevel gear 23 and a rotary bevel gear ring 19, wherein the separation sleeve 18 is coaxially fixedly installed on the outside of the feed pipe, and a mounting hole for rotationally connecting the corresponding rotary main pipe 171 is opened on the separation sleeve 18, and multiple groups of the transmission bevel gears 23 are coaxially installed at the ends of the corresponding rotary main pipes 171, and the rotary bevel gear ring 19 is rotatably installed on the outside of the feed pipe and meshed with the corresponding transmission bevel gear 23;

[0052] Specifically, in the present invention, the number of layers of the agitator 17 is two, and the corresponding No. 2 transmission assembly includes two groups of rotating bevel gear rings 19. The transmission bevel gear 23 at the end of each layer of the agitator 17 is meshed and transmitted with a group of rotating bevel gear rings 19. The number of the corresponding No. 2 drive motors 5 is two groups. The two groups of drive motors are started synchronously to drive the agitators 17 of the corresponding layers to rotate synchronously, so as to stir the lower layer and the falling pharmaceutical raw materials.

[0053] like Figure 4 and Figure 6As shown, in the embodiment of the present invention, the third transmission assembly includes a rotary sleeve 21 and a driven bevel gear ring 20, the rotary sleeve 21 is rotatably mounted on the outside of the material transport pipe 6, and is rotatably connected to the connecting ring 22 fixedly mounted on the bottom of the bulk material tray 8, wherein a plurality of groups of limit strips are fixedly mounted on the side wall of the connecting ring 22, the limit strips are slidably connected to the limit grooves on the inner side of the upper end of the rotary sleeve 21, the driven bevel gear ring 20 is fixedly mounted on the bottom of the rotary sleeve 21, and is meshedly connected with the transmission bevel gear 23 at the corresponding end of the rotary tube, the driven bevel gear in the present invention is driven to rotate synchronously by the transmission bevel gear 23 and the rotary bevel gear ring 19 located on the upper side, and drives the rotary sleeve 21 fixedly connected to the driven bevel gear to rotate, the rotary sleeve 21 synchronously drives the connecting ring 22 and the bulk material tray 8 on the upper side of the connecting ring 22 to rotate through the sliding cooperation between the limit strips and the limit grooves;

[0054] When the bulk material tray 8 rotates, the gear sleeve 13 cooperates with the meshing teeth 12 on the upper end surface of the bulk material tray 8, and the gear sleeve 13 pushes the meshing teeth 12 and the bulk material tray 8 to move downward along the outer wall of the material transport pipe 6. At this time, the connecting spring 11 is extended. Under the elastic thrust of the connecting spring 11, the bulk material tray 8 vibrates back and forth vertically. When the pharmaceutical raw materials fall from the screening net 801 to the bottom, they are heated and differentiated by the stirring and drying assembly, and the materials are evenly dispersed.

[0055] like Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, in an embodiment of the present invention, the wind heating component includes a wind heating coil 2 and a heating bellows 3. The heating bellows 3 is fixedly installed on the outside of the mixing tank 1, and is used to draw in and heat the air in the environment. Multiple groups of the wind heating coils 2 are fixedly installed on the outside of the mixing tank 1 and are connected to the heating bellows 3. The wind heating coil 2 is provided with multiple groups of exhaust ports on the side close to the mixing tank 1. The exhaust ports are sealed and rotatably connected to the end of the corresponding rotating main pipe 171. The wind heating component in the present invention is used to be connected to a stirring and drying component. The present invention is connected with multiple groups of rotating main pipes 171 through the wind heating coil 2. The heated air in the heating bellows 3 can be transported to the multiple groups of rotating main pipes 171 through the wind heating coil 2, and discharged along the exhaust holes on the multiple groups of fixed branches 172 on the side of the rotating main pipe 171, so as to dry the pharmaceutical raw materials in the mixing tank 1, and at the same time, the stirring paddles 173 on the fixed branches 172 stir and mix the falling pharmaceutical raw materials.

[0056] Furthermore, in the present invention, multiple layers of the agitators 17 are staggeredly installed on the side of the material transport pipe 6 in the vertical direction, so as to avoid the falling pharmaceutical raw materials from falling without being stirred and mixed, thereby improving the quality of stirring and mixing.

[0057] In summary, the present invention provides a material delivery pipe 6 for conveying the pharmaceutical raw materials upward in the mixing tank 1, and a rotatable feeding chute is provided at a plurality of discharge ports 602 at the top of the material delivery pipe 6, and a rotatable and vibrating bulk material tray 8 is provided at the bottom of the feeding chute. A stirring and drying component is provided at the bottom of the bulk material tray 8, and the stirring and drying component includes a multi-layer stirrer 17. The rotary main pipe 171 of the stirrer 17 is rotatably connected to the wind-heating component installed on the outside of the mixing tank 1. When the operator places the pharmaceutical raw materials into the mixing tank 1:

[0058] 1. The screw feeder 7 in the material transport pipe 6 is driven by the No. 1 driving motor 4 to rotate, and the pharmaceutical raw materials at the bottom of the mixing tank 1 are transported upward. When the pharmaceuticals are transported outward through the discharge port 602 of the material transport pipe 6, they are evenly transported to the bulk material tray 8 through the reciprocating swing of the feeding chute. In the feeding process of the feeding chute, the bulk material tray 8 rotates in the horizontal direction and reciprocates in the vertical direction, which improves the bulk material quality of the bulk material tray 8 and improves the efficiency of uniformly transporting the pharmaceutical raw materials downward through the bulk material tray 8;

[0059] 2. The pharmaceutical raw materials scattered by the bulk tray 8 are stirred by the rotation of multiple groups of stirrers 17 in the stirring and drying component. At the same time, during the stirring process, the heated gas in the wind heating component can be transported through the rotary main pipe 171 and multiple groups of fixed branch pipes 172, and discharged through the air supply holes on the fixed branch pipes 172 to dry the falling and stirred pharmaceutical raw materials, thereby achieving the drying operation while ensuring the mixing effect.

[0060] The present solution also provides a controller which is arranged on the equipment. When in use, each electrical device can be started and operated separately through the controller. The power connection method of each electrical device is an existing mature technology, and the control circuit of the controller can be realized through simple programming by technicians in this field. These are all well-known technologies to those in this field and no further elaboration is made here.

[0061] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A raw material mixing device for drug production, comprising a mixing tank, characterized in that: A material transport pipe is vertically fixedly installed in the mixing tank, and a plurality of feed ports and discharge ports are correspondingly opened on the bottom and top side walls of the material transport pipe. A screw feeder is rotatably installed in the material transport pipe, and one end of the screw feeder extends out of the material transport pipe and is driven to rotate by a No. 1 rotating member installed at one end of the mixing tank; A group of feeding chutes are rotatably installed at the corresponding discharge ports on the top of the conveying pipe. The multiple groups of feeding chutes are connected to the upper end of the rotating shaft of the screw feeder through a No. 1 transmission component. The rotation of the screw feeder drives the multiple groups of feeding chutes to swing back and forth in the vertical direction. A bulk material disc is rotatably mounted in the middle of the material transport pipe, and the upper end of the bulk material disc is elastically connected to a limiting collar coaxially fixed on the material transport pipe, a gear sleeve is fixedly connected to the bottom of the limiting collar, and meshing teeth are arranged on the upper end surface of the bulk material disc, and the gear sleeve and the meshing teeth are meshed with each other; A stirring and drying assembly is installed at the bottom of the material transport pipe, and the stirring and drying assembly includes a multi-layer agitator, and the agitator includes a rotary main pipe, one end of multiple groups of the rotary main pipes is rotatably installed on the side wall of the material transport pipe, and the other end is rotatably installed on the side wall of the mixing tank, and extends out to be rotatably connected with the wind-heating assembly installed on the outside of the mixing tank, and multiple groups of fixed branch pipes are fixedly installed on the side of the rotary main pipe, and stirring blades are fixed on the outside of the fixed branch pipes. Multiple groups of rotary main pipes on each layer are connected by transmission through the No. 2 transmission assembly, and one group of rotary main pipes is driven to rotate by the No. 2 rotating member on the outside of the mixing tank, and air supply holes are opened on the fixed branch pipes; The bulk material tray is connected to the rotary main pipe of the agitator located on the upper layer through a No. 3 transmission component.

2. A raw material mixing device for drug production according to claim 1, characterized in that: The first transmission assembly includes a rotating disk and a transmission arm; The rotary disc is coaxially mounted on the upper end of the rotary shaft of the screw feeder, and a zigzag closed limiting groove is provided on the side wall of the rotary disc; One end of the transmission arm is rotatably connected to the middle part of the feeding chute, and the other end is fixed with a guide column, and the guide column is limitedly slidably connected in the limit groove.

3. A raw material mixing device for drug production according to claim 1, characterized in that: The upper end of the bulk material tray is provided with a material guide chute, which is slidably installed in a sliding cavity opened at the bottom of the limiting collar, and is rotatably installed in the sliding cavity of the limiting collar and elastically connected to the connecting ring through multiple sets of connecting springs.

4. A raw material mixing device for drug production according to claim 1, characterized in that: A plurality of screening nets are fixedly mounted on the bulk material tray.

5. A raw material mixing device for drug production according to claim 1, characterized in that: The second transmission assembly includes a separation sleeve, a transmission bevel gear and a rotary bevel gear ring; The separation sleeve is coaxially fixedly installed on the outside of the feeding pipe, and a mounting hole for rotational connection with the corresponding rotary main pipe is provided on the separation sleeve; A plurality of groups of the transmission bevel gears are coaxially mounted on the ends of the corresponding rotating main pipes; The rotary bevel gear ring is rotatably mounted on the outside of the feeding pipe and is meshedly connected with the corresponding transmission bevel gear.

6. A raw material mixing device for drug production according to claim 5, characterized in that: The third transmission assembly includes a rotary sleeve and a driven bevel gear ring; The rotary sleeve is rotatably mounted on the outside of the material transport pipe and is rotatably connected to a connecting ring fixedly mounted on the bottom of the bulk material tray, wherein a plurality of limit bars are fixedly mounted on the side wall of the connecting ring, and the limit bars are slidably connected to the limit grooves on the inner side of the upper end of the rotary sleeve; The driven bevel gear ring is fixedly installed at the bottom of the rotating sleeve and is meshedly connected with the transmission bevel gear at the end of the corresponding rotating tube.

7. A raw material mixing device for drug production according to claim 1, characterized in that: The wind heating component includes a wind heating coil and a heating bellows; The heating bellows is fixedly installed on the outside of the mixing tank and is used to draw air from the environment and heat it; Multiple groups of the air-heating coils are fixedly installed on the outside of the mixing tank and connected to the heating bellows. Multiple groups of exhaust ports are opened on the side of the air-heating coils close to the mixing tank, and the exhaust ports are sealed and rotatably connected to the ends of the corresponding rotating main pipes.

8. A raw material mixing device for drug production according to claim 7, characterized in that: The multiple layers of agitators are staggeredly installed on the side of the material conveying pipe along the vertical direction.

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