Solid dosage form feeding device

Abstract

The present application provides a feeding device for solid preparations. A discharge port is provided at the material inlet; a blanking plate is communicated with the discharge port, and at least two strip-shaped guide grooves arranged at intervals are provided on the blanking plate. The width of the guide groove is L1, and the thickness of the solid preparation is L2, where L2 < L1 ≤ 1.1L2; the material control mechanism includes a first driving part and a second driving part, a first switch drivingly connected to the first driving part, a second switch drivingly connected to the second driving part, the first switch is controllably connected to at least two first blocking pieces, and at least two first blocking pieces are correspondingly arranged at the outlets of at least two guide grooves; the second switch is controllably connected to at least two second blocking pieces, and at least two second blocking pieces are correspondingly arranged at the outlets of the remaining at least two guide grooves on the blanking plate. The feeding device for solid preparations provided by the present application avoids the problems of missing tablets and overlapping tablets during feeding, reduces the coordination of the tablet loading control mechanism, and improves the stability and packaging efficiency of tablet loading.

Description

Technical Field

[0001] The present application relates to the technical field of preparation transmission, and in particular to a solid preparation feeding device. Background Art

[0002] In the pharmaceutical production process, conventional solid preparations are generally arranged by the unloading device of the packaging machine and then fed into the packaging material in an orderly manner.

[0003] The unloading device of the existing packaging machine is not suitable for unloading different types of solid preparations 1', such as capsules, tablets, etc. Due to the differences in appearance, weight, length, width, thickness ratio, etc. of different solid preparations 1', the universality of the guide groove 2' of the traditional packaging machine will be reduced. In particular, during the unloading process of some special-shaped solid preparations 1', a large number of solid preparations 1' will block the guide groove 2', and even cause the machine to jam and fail to produce normally. In addition, the unloading device of the existing packaging machine is not suitable for unloading solid preparations 1'.

[0004] To meet the irregular loading of solid preparations 1', the cylinder and the guide groove 2' are matched one by one to control the blanking.

[0005] As long as any of the cylinders fails or jams, tablets will be missing from the package, resulting in unstable tablet loading. At the same time, tablet loading requires the cylinders to have a very consistent synchronization rate, and the coordination and consistency of multiple cylinders is also a great challenge. Summary of the invention

[0006] The present application provides a solid preparation feeding device to solve the problems existing in the prior art, avoid the problems of missing tablets and overlapping tablets when feeding solid preparations, reduce the coordination of the tablet filling control mechanism, and improve the stability of tablet filling and packaging efficiency.

[0007] The solid preparation feeding device provided in the present application comprises: a hopper for holding the solid preparation,

[0008] The material inlet is provided with a discharge port; a blanking plate, the blanking plate is communicated with the discharge port to receive the solid preparation, at least two strip-shaped guide grooves arranged at intervals are provided on the blanking plate, the width of the guide grooves is L1, the thickness of the solid preparation is L2, and L2 < L1 ≤ 1.1L2; a material control mechanism, the material control mechanism includes a first driving part and a second driving part, a first switch drivingly connected to the first driving part, a second switch drivingly connected to the second driving part, the first switch is controllably connected to at least two first baffles, and at least two of the first baffles are correspondingly arranged at the outlets of at least two of the guide grooves to control the opening and closing of at least two of the guide grooves; the second switch is controllably connected to at least two second baffles, and at least two of the second baffles are correspondingly arranged at the outlets of the remaining at least two of the guide grooves on the blanking plate to control the opening and closing of the remaining at least two of the guide grooves.

[0009] Optionally, the ends of at least two of the first baffles are correspondingly screwed into or out of the outlets of the corresponding guide grooves under the control of the first switch to control the opening and closing of the guide grooves; the ends of at least two of the second baffles are correspondingly screwed into or out of the outlets of the corresponding guide grooves under the control of the second switch to control the opening and closing of the guide grooves.

[0010] Optionally, the first driving part includes two first air cylinders, and the two first air cylinders synchronously control the first switch; the second driving part includes two second air cylinders, and the two second air cylinders synchronously control the second switch.

[0011] Optionally, the blanking plate includes a material receiving plate and a guiding plate arranged in sequence, the blanking plate is communicated with the discharge port to receive the solid preparation, a cover plate is attached to one side of the guiding plate where the guide grooves are provided, and the distance between the cover plate and the guiding plate is adjustable.

[0012] Optionally, a vibration cylinder is provided on the cover plate.

[0013] Optionally, a stirring part is provided at the docking part of the material receiving plate and the guiding plate, the stirring part includes a stirring shaft and stirring blades arranged on the stirring shaft, the stirring blades are flexible blades, and when the stirring blades rotate to the blanking plate, they are attached to the blanking plate and throw up the solid preparation scattered outside the guide grooves towards the direction of the discharge port by rotation.

[0014] Optionally, the solid preparation feeding device further includes a speed regulator, and the speed regulator is electrically connected to the power source of the stirring shaft to adjust the rotation speed of the stirring shaft.

[0015] Optionally, a cover shell is provided on the outer side of the stirring part, and the cover shell and the blanking plate enclose a stirring chamber with an opening, and the stirring shaft is arranged on a stirring seat, and a dust suction interface connected to the stirring chamber is provided on the stirring seat.

[0016] Optionally, the solid preparation feeding device further comprises a frame and a mounting seat, the feeding plate is mounted on the frame via the mounting seat, and the mounting seat is rotatably connected to the frame to adjust the pitch angle of the guide plate.

[0017] Optionally, the solid preparation feeding device also includes a controller and a level sensor, the level sensor is arranged above the feeding plate, the hopper is arranged on the frame, a vibrator with adjustable frequency is arranged between the hopper and the frame, and the controller is communicatively connected with the level sensor and the vibrator to adjust the frequency of the vibrator according to the level detected by the level sensor.

[0018] The solid preparation feeding device provided in the present application has a feeding guide groove with a width wider than the thickness of the solid preparation and less than 1.1 times the thickness of the solid preparation, so that the solid preparation can be fed in the guide groove in a sideways state, so as to prevent the problem of missing or overlapping tablets when the solid preparation is a special-shaped tablet, which blocks the guide groove and prevents normal feeding. The opening and closing of multiple guide grooves can be controlled by two sets of driving mechanisms, the first driving part and the second driving part, so as to realize simultaneous or staggered loading of tablets, thereby ensuring the uniformity and stability of loading. The solid preparation feeding device provided in the embodiment of the present application can adapt to not only round tablets, but also special-shaped solid preparations such as triangles, ellipses, diamonds, and long cones. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of the present application, wherein:

[0020] Figure 1 It is a schematic diagram of the solid preparation passing through the feeding device in the prior art.

[0021] Figure 2 A schematic diagram of the structure of a solid preparation feeding device provided in an optional embodiment of the present application.

[0022] Figure 3 A schematic diagram of a solid medicine passing through a guide channel provided in an optional embodiment of the present application.

[0023] Figure 4 This is a schematic diagram of the structure of a solid preparation feeding device provided in an optional embodiment of the present application when the cover plate is transparent.

[0024] Figure 5A schematic diagram of the lateral structure of a solid preparation feeding device provided in an optional embodiment of the present application.

[0025] Figure 6 This is a schematic diagram of the side and rear structure of a solid preparation feeding device provided in an optional embodiment of the present application.

[0026] Figure 7 A schematic diagram of the bottom structure of a solid preparation feeding device provided in an optional embodiment of the present application.

[0027] Description of reference numerals:

[0028] 1- hopper, 10- discharge port, 11- solid preparation, 12- feed chute;

[0029] 2- blanking plate, 20- guide groove, 21- receiving plate, 22- guide plate, 23- cover plate, 24- vibration cylinder;

[0030] 3- material control mechanism, 30- first driving part, 31- second driving part, 32- first switch, 33- second switch, 34- first baffle, 35- second baffle, 36- first cylinder, 37- second cylinder, 38- supporting shaft, 39- compression spring;

[0031] 4-stirring part, 40-stirring shaft, 41-stirring blade, 42-speed regulator, 43-cover, 44-dust suction interface, 45-stirring seat;

[0032] 5-frame, 50-mounting seat, 51-rotation axis;

[0033] 6-Material level sensor. DETAILED DESCRIPTION

[0034] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0035] The present application provides a solid preparation feeding device, comprising: a hopper 1, a feeding plate 2 and a feeding control mechanism 3.

[0036] Please also refer to Figures 2 to 7, the hopper 1 is used to hold the solid preparation 11. There is a discharge port 10 on the hopper 1, and a blanking chute 12 is arranged at the discharge port 10. The outlet of the blanking chute 12 is arranged above the blanking plate 2, so that the blanking plate 2 can receive the solid preparations 11 such as tablets falling from the discharge port 10 of the hopper 1. At least two strip-shaped guide grooves 20 arranged at intervals are provided on the blanking plate 2, and the at least two guide grooves 20 are arranged in parallel, forming a comb-shaped blanking structure on the blanking plate 2. The width of the guide groove 20 is L1, and the thickness of the solid preparation 11 is L2, where L2 < L1 ≤ 1.1L2, that is, the width of the guide groove 20 is set to be wider than the thickness of the solid preparation 11 and less than 1.1 times the thickness of the solid preparation 11, so that the solid preparation 11 can be discharged in a side-standing state in the guide groove 20 according to Figure 3 shown in the side-standing state to prevent problems such as missing tablets or overlapping tablets when the solid preparation 11 is a special-shaped tablet.

[0037] The material control mechanism 3 includes a first driving part 30 and a second driving part 31, a first switch 32 drivingly connected to the first driving part 30, a second switch 33 drivingly connected to the second driving part 31, the first switch 32 is controllably connected to at least two first baffles 34, and the at least two first baffles 34 are correspondingly arranged at the outlets of the at least two guide grooves 20 to control the opening and closing of the at least two guide grooves 20; the second switch 33 is controllably connected to at least two second baffles 35, and the at least two second baffles 35 are correspondingly arranged at the outlets of the remaining at least two guide grooves 20 on the blanking plate 2 to control the opening and closing of the remaining at least two guide grooves 20. Two sets of driving mechanisms, the first driving part 30 and the second driving part 31, can realize the control of the opening and closing of multiple guide grooves 20. Through the two-stage switch structure, the simultaneous or staggered granulation of the solid preparation 11 is realized, ensuring the unity and stability of granulation.

[0038] For the solid preparation blanking device provided by the embodiment of the present application, the width of the blanking guide groove 20 is set to be wider than the thickness of the solid preparation 11 and less than 1.1 times the thickness of the solid preparation 11, so that the solid preparation 11 can be discharged in a side-standing state in the guide groove 20 to prevent problems such as missing tablets or overlapping tablets when the solid preparation is a special-shaped tablet, and the guide groove 20 is blocked and cannot be normally blanked. Through two sets of driving mechanisms, the first driving part 30 and the second driving part 31, the control of the opening and closing of multiple guide grooves 20 can be realized, and the simultaneous or staggered granulation of tablets can be realized, ensuring the unity and stability of granulation. The solid preparation blanking device provided by the embodiment of the present application can adapt to both round tablets and special-shaped solid preparations 11 such as triangular, oval, rhombic, and long conical tablets.

[0039] As an optional embodiment, the ends of at least two first baffles 34 are correspondingly rotated in or out of the exit of the corresponding guide slot 20 under the control of the first switch 32 to control the opening and closing of the guide slot 20; the ends of at least two second baffles 35 are correspondingly rotated in or out of the corresponding guide slot 20 under the control of the second switch 33 to control the opening and closing of the guide slot 20. The first driving unit 30, the second driving unit 31, the first switch 32, and the second switch 33 are all arranged on the side of the guide plate 22 facing away from the guide slot 20.

[0040] like Figures 5 to 7 As shown, the working process of the material control mechanism 3 is described by taking five guide grooves 20 as one group and three groups of guide grooves 20 arranged side by side on the blanking plate 2 as an example. The number of first baffles 34 is three, corresponding to each guide groove 20 in the three groups of guide grooves 20, and the number of second baffles 35 is twelve, corresponding to the remaining guide grooves 20 in the three groups of guide grooves 20. The three first baffles 34 are all connected to the first switch 32, and the twelve second baffles 35 are all connected to the second switch 33.

[0041] The first ends of the three first baffles 34 are connected to the first switch 32, and the second ends bypass the transversely arranged support shaft 38, pass through the guide plate 22 from the back side of the guide plate 22, and extend into the corresponding guide slot 20. The first driving unit 30 is drivingly connected to the first switch 32, and by driving the first switch 32, the second ends of the first baffles 34 are driven to rotate around the support shaft 38 and enter the guide slot 20 to control the guide slot 20 to stop dropping, or the second ends of the first baffles 34 are driven to rotate around the support shaft 38 in the opposite direction to exit the guide slot 20 to control the guide slot 20 to start dropping. The first ends of the twelve second baffles 35 are connected to the second switch 33, and the second ends bypass the transversely arranged support shaft 38, pass through the guide plate 22 from the back side of the guide plate 22, and extend into the corresponding guide slot 20. The second driving part 31 is connected to the second switch 33 by driving. By driving the second switch 33, the second end of the second baffle 35 is driven to rotate around the support shaft 38 and enter the guide groove 20 to control the guide groove 20 to stop dropping, or the second end of the second baffle 35 is driven to rotate around the support shaft 38 in the opposite direction to exit the guide groove 20 to control the guide groove 20 to start dropping. When all the blisters need to be filled with tablets, the first switch 32 and the second switch 33 are opened at the same time, and all the tablets in the fifteen guide grooves 20 are filled into the blisters. When the blister in the middle does not need to be filled with tablets, only the second switch 33 is opened, and the first switch 32 is closed, and the tablets in the twelve guide grooves 20 corresponding to the second switch 33 are filled into the blister.

[0042] As an optional embodiment, the first driving unit 30 includes two first cylinders 36, and the two first cylinders 36 synchronously control the first switch 32; the second driving unit 31 includes two second cylinders 37, and the two second cylinders 37 synchronously control the second switch 33. The first cylinder 36 and the second cylinder 37 are both provided in two and work synchronously, which can increase the stability of driving the first switch 32 and the second switch 33.

[0043] The working principle of the material control mechanism 3 is explained by taking the two first cylinders 36 driving the first switch 32 as an example. Figure 5 to Figure 6 As shown, the first switch 32 includes a first pressure plate, which is in a Z shape. The two first cylinders 36 are connected to the first end of the first pressure plate, and the second end of the first pressure plate is connected to the front of the first end of the first baffle 34. The back of the first end of the first baffle 34 is pressed against the back of the guide plate 22 through the compression spring 39. When the two first cylinders 36 extend synchronously and drive the first end of the first pressure plate to move toward the side away from the guide plate 22, the pressure of the first pressure plate on the first end of the first baffle 34 is reduced, and the first end of the first baffle 34 is bounced up under the reverse action of the compression spring 39, and the second end of the second baffle 35 is driven to rotate into the guide groove 20 through the fulcrum action of the support shaft 38 by the lever principle. On the contrary, when the two first cylinders 36 shorten synchronously, the first end of the first pressure plate is driven to move toward the side close to the guide plate 22. At this time, the pressure of the first pressure plate on the first end of the first baffle 34 increases, and the first end of the first baffle 34 is pressed toward the guide plate 22. With the help of the lever principle, the second end of the first baffle 34 is driven to rotate out of the guide groove 20 through the fulcrum of the support shaft 38.

[0044] The second switch 33 includes a second pressure plate, which is in a Z shape, and two second cylinders 37 are connected to the first end of the second pressure plate, and the second end of the second pressure plate is connected to the front of the first end of the second baffle 35, and the back of the second end of the second baffle 35 is pressed against the back of the guide plate 22 through a compression spring 39. The two second cylinders 37 drive the second switch 33 in the same manner as the two first cylinders 36, which will not be repeated here.

[0045] As an optional embodiment, the blanking plate 2 includes a receiving plate 21 and a guide plate 22 arranged in sequence, the blanking plate 2 is connected to the discharge port 10 to receive the solid preparation 11, and a cover plate 23 is attached to one side of the guide plate 22 where the guide groove 20 is arranged, and the distance between the cover plate 23 and the guide plate 22 is adjustable. Figure 2 , Figures 4 to 7As shown, the cover plate 23 and the guide plate 22 can be connected by bolts, and the distance between the cover plate 23 and the guide plate 22 can be adjusted by loosening or tightening the bolts, thereby adjusting the running speed of the solid preparation 11 in the guide groove 20 on the guide plate 22. The cover plate 23 can also be a transparent plate or a semi-transparent plate, so as to facilitate observation of the falling material in the guide groove 20, which helps to timely adjust the distance between the cover plate 23 and the guide plate 22 and adjust the falling material speed in the guide groove 20.

[0046] As an optional embodiment, a vibration cylinder 24 is provided on the cover plate 23. Figures 2 to 4 As shown, when the vibration cylinder 24 vibrates, the cover plate 23 is driven to vibrate, and the vibration of the cover plate 23 drives the guide plate 22 to vibrate, so as to adjust the unloading speed in the guide groove 20. The vibration of the vibration cylinder 24 can transport the tablets to the outlet of the guide groove 20 in an orderly manner, prevent the tablets from being blocked in the guide groove 20, and improve the stability and efficiency of unloading. The number of vibration cylinders 24 can be two or more, arranged along the length direction of the guide plate 22, so that the guide plate 22 can be effectively unloaded through the vibration of the vibration cylinder 24 in the entire length direction.

[0047] As an optional embodiment, the receiving plate 21 and the guide plate 22 are provided with a stirring part 4 at the joint, and the stirring part 4 includes a stirring shaft 40 and a stirring blade 41 provided on the stirring shaft 40, and the stirring blade 41 is a flexible blade. When the stirring blade 41 rotates to the blanking plate 2, it fits with the blanking plate 2 and rotates to throw the solid preparation 11 scattered on the outside of the guide groove 20 toward the direction of the discharge port 10. In the embodiment of the present application, the stirring shaft 40 rotates clockwise to drive the stirring blade 41 to stir, and the tablets outside the guide groove 20 in the stirring chamber can be stirred so that they are evenly filled into the guide groove 20 on the blanking plate 2, and the tablets are guided to the guide plate 22 through the guide groove 20 to avoid missing or insufficient loading. Optionally, the stirring shaft 40 is connected to a driving power source such as a drive motor.

[0048] As an optional embodiment, the solid preparation feeding device further includes a speed regulator 42, which is electrically connected to the power source of the stirring shaft 40 to adjust the rotation speed of the stirring shaft 40. The speed regulator 42 adjusts the rotation speed of the stirring shaft 40 by controlling the output speed of the power source. The power source can be a motor, and the speed regulator 42 electrically controls the speed of the motor to adjust the stirring rate of the stirring shaft 40. The rotation rate of the stirring shaft 40 is adjusted by the speed regulator 42 to meet the requirements of different feeding speeds.

[0049] As an optional embodiment, a cover shell 43 is provided on the outer side of the stirring part 4, and the cover shell 43 and the blanking plate 2 enclose a stirring chamber with an opening, and the stirring shaft 40 is arranged on the stirring seat 45, and a dust suction interface 44 is arranged on the stirring seat 45, and the dust suction interface 44 is connected to the stirring chamber. The stirring seat 45 can be provided with an opening connected to the dust suction interface 44, and the tablets thrown up by the stirring blade 41 are thrown out from the opening of the stirring chamber and fall into the guide groove 20 on the blanking plate 2. The cover shell 43 can limit the tablets thrown out by the stirring blade 41 to prevent them from being thrown out of the blanking plate 2. During the stirring process, the dust in the stirring chamber and the tablet debris can be sucked out by connecting the vacuum cleaner to the dust suction interface 44, thereby ensuring that there is no dust and debris in the medicine plate of the tablet entering the blister packaging machine, thereby ensuring the sealing and appearance quality of the medicine plate.

[0050] As an optional embodiment, the stirring blade 41 is an arc-shaped blade. When the stirring blade 41 rotates to fit the blanking plate 2, the outer arc surface of the stirring blade 41 faces the discharge port 10. The arc-shaped stirring blade 41 structure allows the flexible stirring blade 41 to better fit the blanking plate 2 when it rotates to fit the blanking plate 2, thereby playing a better disturbing role. The outer arc surface of the stirring blade 41 faces the discharge port 10, so that the preparation gathered near the stirring blade 41 can be efficiently ejected when the stirring blade 41 further rotates after fitting with the blanking plate 2, so that it is evenly distributed in the guide groove 20 on the blanking plate 2, thereby increasing the disturbance and ejection uniformity effect of the stirring blade 41 on the preparation.

[0051] As an optional embodiment, the solid preparation feeding device further comprises a frame 5 and a mounting seat 50. The blanking plate 2 is mounted on the frame 5 via the mounting seat 50, which can increase the stability of the blanking plate 2 and the related blanking mechanism disposed thereon. The mounting seat 50 is rotatably connected to the frame 5 to adjust the pitch angle of the guide plate 22, such as Figures 5 to 7 As shown, the mounting seat 50 can be mounted on the frame 5 through a driving motor and a rotating shaft 51, and the driving motor drives the rotating shaft 51 to rotate to drive the guide plate 22 to rotate and adjust the pitch angle of the guide plate 22. The pitch angle of the guide plate 22 is adjustable, so that the drug delivery angle of the guide plate 22 can match the requirements of different blister plates and drug delivery speed requirements.

[0052] As an optional embodiment, the solid preparation feeding device also includes a controller and a level sensor 6, the level sensor 6 is arranged above the blanking plate 2, the hopper 1 is arranged on the frame 5, and a vibrator with adjustable vibration frequency is arranged between the hopper 1 and the frame 5. The controller is connected to the level sensor 6 and the vibrator in communication to adjust the vibration frequency of the vibrator according to the level detected by the level sensor 6. In the embodiment of the present application, when the level sensor 6 detects that the material level is low, the low material level signal is fed back to the controller, and the controller controls the vibrator to increase the vibration frequency to increase the feeding speed of the hopper 1; when the level sensor 6 detects that the material level is high, the high material level signal is fed back to the controller, and the controller controls the vibrator to reduce the vibration frequency to reduce the feeding speed of the hopper 1. By intelligently controlling the feeding speed of the hopper 1, the stability and reliability of feeding can be improved. The controller in the embodiment of the present application can be a programmable controller.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A solid preparation feeding device, characterized in that: Comprising: A hopper for containing solid preparations, the hopper being provided with a discharge port; A blanking plate, a blanking chute being provided at the discharge port, the outlet of the blanking chute being arranged above the blanking plate, the blanking plate being communicated with the discharge port to receive the solid preparations, at least two strip-shaped guide grooves being arranged at intervals on the blanking plate, the width of the guide grooves being L1, the thickness of the solid preparations being L2, and L2 < L1 ≤ 1.1L2; the blanking plate comprises a material receiving plate and a guiding plate arranged in sequence, a stirring part being arranged at the docking part of the material receiving plate and the guiding plate, the stirring part comprising a stirring shaft and stirring blades arranged on the stirring shaft, the stirring blades being flexible blades, when the stirring blades rotate to the blanking plate, they are attached to the blanking plate and throw up the solid preparations scattered outside the guide grooves towards the direction of the discharge port by rotation; A material control mechanism, the material control mechanism comprising a first driving part and a second driving part, a first switch drivingly connected to the first driving part, a second switch drivingly connected to the second driving part, the first switch being controllably connected to at least two first blocking pieces, at least two of the first blocking pieces being correspondingly arranged at the outlets of at least two of the guide grooves to control the opening and closing of at least two of the guide grooves; the second switch being controllably connected to at least two second blocking pieces, at least two of the second blocking pieces being correspondingly arranged at the outlets of the remaining at least two of the guide grooves on the blanking plate to control the opening and closing of the remaining at least two of the guide grooves; The solid preparation blanking device further comprises a speed regulator, the speed regulator being electrically connected to the power source of the stirring shaft to adjust the rotation speed of the stirring shaft; A housing is arranged outside the stirring part, the housing and the blanking plate enclose and define a stirring cavity with an opening, the stirring shaft is arranged on a stirring seat, and a dust suction interface communicated with the stirring cavity is arranged on the stirring seat.

2. The solid preparation feeding device according to claim 1, characterized in that: The ends of at least two of the first blocking pieces are correspondingly screwed into or out of the outlets of the corresponding guide grooves under the control of the first switch to control the opening and closing of the guide grooves; the ends of at least two of the second blocking pieces are correspondingly screwed into or out of the outlets of the corresponding guide grooves under the control of the second switch to control the opening and closing of the guide grooves.

3. The solid preparation feeding device according to claim 2, characterized in that: The first driving part comprises two first cylinders, and the two first cylinders synchronously control the first switch; the second driving part comprises two second cylinders, and the two second cylinders synchronously control the second switch.

4. The solid preparation feeding device according to claim 1, characterized in that: The blanking plate is communicated with the discharge port to receive the solid preparations, a cover plate is attached to one side of the guiding plate where the guide grooves are arranged, and the distance between the cover plate and the guiding plate is adjustable.

5. The solid preparation feeding device according to claim 4, characterized in that: A vibration cylinder is arranged on the cover plate.

6. The solid preparation feeding device according to claim 4, characterized in that: The solid preparation blanking device further comprises a frame and a mounting seat, the blanking plate is mounted on the frame through the mounting seat, and the mounting seat is rotatably connected to the frame to adjust the pitching angle of the guiding plate.

7. The solid preparation feeding device according to claim 6, characterized in that: The solid preparation feeding device also includes a controller and a level sensor, the level sensor is arranged above the feeding plate, the hopper is arranged on the frame, a vibrator with adjustable frequency is arranged between the hopper and the frame, and the controller is communicatively connected with the level sensor and the vibrator to adjust the frequency of the vibrator according to the level detected by the level sensor.

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