Capsule filling device

Abstract

The utility model discloses a capsule filling device which comprises a buffer tank, a drying compression air inlet pipe, a buffer air outlet pipe, a controller and a capsule filling machine. One end of the buffer tank is communicated with the drying compression air inlet pipe; one end of the buffer air outlet pipe is communicated with the buffer tank; a main control valve is arranged on the buffer air outlet pipe; the main control valve is connected with the controller. The buffer tank, the dry compressed air inlet pipe, the buffer air outlet pipe and the controller are adopted for controlling dry compressed air of the capsule filling machine, the stability of dry compressed air flow introduced into the capsule filling machine and the stability of dry compressed air flow introduced into the capsule filling machine are improved, the size of the dry compressed air flow is controlled, and disordered dry compressed air is prevented from blowing away medicine powder; the influence of dry compressed air on the capsule filling process is reduced, and the capsule filling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capsule filling, in particular to a capsule filling device. Background Art

[0002] Existing capsule filling devices, such as the Chinese invention patent CN116803362A, disclose a highly enclosed capsule filling device. The device comprises a capsule filling device, a powder feeding device, an empty capsule lifting device, a capsule polishing device, and a metal detection device. The capsule filling device includes a filling body, a filling mechanism, and an isolator. The filling mechanism is mounted on the filling body, and the isolator cover is mounted on the filling mechanism and seals with the filling body. The powder feeding device is rotatably mounted on one side of the capsule filling device. The capsule polishing device is connected to the discharge end of the capsule filling device and includes a polishing body, a polishing cylinder, and a polishing assembly. The polishing cylinder is mounted on the polishing body. The metal detection device is connected to the discharge port of the capsule polishing device. During the capsule filling process, capsules or materials are easily affected by the external ambient air humidity, resulting in the material failing to meet the required clean area humidity requirement of 45% to 65%.

[0003] Currently, dry compressed air is typically introduced into the capsule filling device to reduce humidity within the granulation chamber. This dry compressed air is generated by an air dryer and pumped in by an air pump. However, the power of the air dryer and air pump is variable, which can easily lead to unstable dry compressed air flow into the capsule filling machine, thereby affecting the capsule filling process of the pharmaceutical material. Utility Model Content

[0004] The main purpose of the utility model is to provide a capsule filling device, which aims to improve the stability of the dry compressed air flow entering the capsule filling machine, control the size of the dry compressed air flow, reduce the impact of the dry compressed air on the capsule filling process, and improve the capsule filling efficiency.

[0005] To achieve the above-mentioned purpose, the capsule filling device proposed in the present invention comprises:

[0006] Buffer tank;

[0007] A drying and compression air inlet pipe, one end of the buffer tank is connected to the drying and compression air inlet pipe;

[0008] A buffer outlet pipe, one end of which is connected to the buffer tank and is provided with a main control valve;

[0009] A controller, wherein the main control valve is in communication with the controller; and

[0010] The other end of the buffer air outlet pipe is connected to the capsule filling machine.

[0011] Optionally, the invention further comprises: a capsule-filled tracheal assembly, the capsule-filled tracheal assembly comprising at least two bronchi;

[0012] The other end of the buffer air outlet pipe is communicated with the capsule filling machine through the capsule filling air pipe assembly.

[0013] Optionally, the capsule filling machine comprises: a medicine powder hopper, a capsule hopper, a top portion of a first capsule filling chamber, and a top portion of a second capsule filling chamber;

[0014] The capsule-filled tracheal assembly includes: a first low-humidity bronchus, a second low-humidity bronchus, a third low-humidity bronchus, and a fourth low-humidity bronchus;

[0015] One end of the first low-humidity bronchus is connected to the buffer outlet pipe, and the other end is connected to the powder funnel; a first control valve is provided on the first low-humidity bronchus, and the first control valve is communicatively connected to the controller;

[0016] One end of the second low-humidity bronchus is connected to the buffer outlet pipe, and the other end is connected to the capsule funnel; a second control valve is provided on the second low-humidity bronchus, and the second control valve is communicatively connected to the controller;

[0017] One end of the third low-humidity bronchus is connected to the buffer outlet pipe, and the other end is connected to the top of the first capsule filling chamber; a third control valve is provided on the third low-humidity bronchus, and the third control valve is in communication with the controller;

[0018] One end of the fourth low-humidity bronchus is connected to the buffer outlet pipe, and the other end is connected to the top of the second capsule filling chamber; a fourth control valve is provided on the fourth low-humidity bronchus, and the fourth control valve is communicatively connected to the controller.

[0019] Optionally, it also includes a first humidity sensor, a second humidity sensor, a third humidity sensor, and a fourth humidity sensor for respectively detecting the humidity in the powder funnel, the capsule funnel, the top of the first capsule filling chamber, and the top of the second capsule filling chamber. The first humidity sensor, the second humidity sensor, the third humidity sensor, and the fourth humidity sensor are respectively communicated with the controller.

[0020] Optionally, one end of the first humidity sensor is arranged inside the medicine powder funnel, and the other end is arranged outside the medicine powder funnel;

[0021] One end of the second humidity sensor is arranged inside the capsule funnel, and the other end is arranged outside the capsule funnel;

[0022] One end of the third humidity sensor is disposed in the first capsule filling chamber, and the other end is disposed outside the top of the first capsule filling chamber;

[0023] One end of the fourth humidity sensor is arranged in the second capsule filling chamber, and the other end is arranged outside the top of the second capsule filling chamber.

[0024] Optionally, it further comprises a capsule polishing and sorting machine and a fifth low-humidity bronchial tube, wherein the capsule polishing and sorting machine comprises a polishing machine feed port;

[0025] One end of the fifth low-humidity bronchial tube is connected to the buffer outlet pipe, and the other end is connected to the polishing machine feed port; a fifth control valve is provided on the fifth low-humidity bronchial tube, and the fifth control valve is communicatively connected to the controller.

[0026] Optionally, the device further includes a fifth humidity sensor which is arranged at the feed inlet of the polishing machine and is used to detect the humidity of the feed inlet of the polishing machine. The fifth humidity sensor is communicatively connected with the controller.

[0027] Optionally, it further comprises a metal detector and a sixth low-humidity bronchial tube, the metal detector comprising a metal detector feed port;

[0028] One end of the sixth low-humidity bronchial pipe is connected to the buffer outlet pipe, and the other end is connected to the metal detector feed port; the sixth low-humidity bronchial pipe is provided with a sixth control valve, and the sixth control valve is communicatively connected to the controller.

[0029] Optionally, the device further includes a sixth humidity sensor which is arranged at the metal detector feed port and is used to detect the humidity of the metal detector feed port. The sixth humidity sensor is communicatively connected to the controller.

[0030] Optionally, it further comprises a lifting loader and a seventh low-humidity bronchial tube, wherein the lifting loader comprises a hopper;

[0031] One end of the seventh low-humidity bronchial tube is connected to the buffer outlet pipe, and the other end is connected to the hopper; a seventh control valve is provided on the seventh low-humidity bronchial tube, and the seventh control valve is communicatively connected to the controller;

[0032] Also included is a seventh humidity sensor for detecting the humidity in the hopper, the seventh humidity sensor being communicatively connected to the controller;

[0033] One end of the seventh humidity sensor is arranged in the hopper, and the other end is arranged outside the hopper.

[0034] The technical solution of the utility model controls the dry compressed air of the capsule filling machine by adopting a buffer tank, a dry compressed air inlet pipe, a buffer air outlet pipe, and a controller, thereby improving the stability of the dry compressed air flow entering and entering the capsule filling machine, controlling the size of the dry compressed air flow, preventing turbulent dry compressed air from blowing away pharmaceutical powder, reducing the influence of dry compressed air on the capsule filling process, and improving the capsule filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0036] Figure 1 This is a structural schematic diagram of an embodiment of the capsule filling device of the present invention.

[0037] Figure 2 It is a structural schematic diagram of the capsule filling machine of the present utility model.

[0038] Figure 3 This is a structural diagram of the capsule polishing and sorting machine of the utility model.

[0039] Figure 4 This is a schematic structural diagram of the metal detector of the present utility model.

[0040] Figure 5 for Figure 1 A partial enlarged schematic diagram.

[0041] The symbols of the main components are explained as follows: buffer tank 1, drying and compression air inlet pipe 21, buffer air outlet pipe 22, main control valve 221, controller 3, capsule polishing and sorting machine 4, polishing machine feed port 41, fifth low-humidity bronchial pipe 45, fifth control valve 451, capsule filling machine 5, powder funnel 51, capsule funnel 52, first capsule filling chamber 53, second capsule filling chamber 54, capsule filling air pipe assembly 6, first low-humidity bronchial pipe 61, first control valve 611, second low-humidity bronchial pipe 62, second control valve 621, third low-humidity bronchial pipe 63, third control valve 631, fourth low-humidity bronchial pipe 64, fourth control valve 641, metal detector 7, metal detector feed port 71, sixth low-humidity bronchial pipe 75, sixth control valve 751, lifting loader 8, hopper 81, seventh low-humidity bronchial pipe 85, seventh control valve 851.

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] The utility model provides a capsule filling device.

[0048] In the embodiment of the present utility model, Figures 1 to 5 As shown, the capsule filling device includes a buffer tank 1, a drying and compression air inlet pipe 21, a buffer air outlet pipe 22, a controller 3 and a capsule filling machine 5; one end of the buffer tank 1 is connected to the drying and compression air inlet pipe 21; one end of the buffer air outlet pipe 22 is connected to the buffer tank 1, and a main control valve 221 is provided on the buffer air outlet pipe 22; the main control valve 221 is communicated with the controller 3; the other end of the buffer air outlet pipe 22 is connected to the capsule filling machine 5.

[0049] The technical solution of the present utility model controls the dry compressed air of the capsule filling machine 5 by adopting a buffer tank 1, a dry compressed air inlet pipe 21, a buffer air outlet pipe 22, and a controller 3, thereby improving the stability of the dry compressed air flow entering and entering the capsule filling machine 5, controlling the size of the dry compressed air flow, preventing turbulent dry compressed air from blowing away pharmaceutical powder, reducing the influence of dry compressed air on the capsule filling process, and improving the capsule filling efficiency.

[0050] Specifically, in order to realize the introduction of dry compressed air into multiple positions of the capsule filling machine 5, the capsule filling device also includes: a capsule filling air pipe assembly 6, the capsule filling air pipe assembly 6 includes at least two bronchi; the other end of the buffer outlet pipe 22 is connected to the capsule filling machine 5 through the capsule filling air pipe assembly.

[0051] Specifically, in order to further realize the introduction of dry compressed air into multiple positions of the capsule filling machine 5, the capsule filling machine 5 includes: a powder funnel 51, a capsule funnel 52, the top of the first capsule filling chamber 53 and the top of the second capsule filling chamber 54; the capsule filling air pipe assembly includes: a first low-humidity bronchus 61, a second low-humidity bronchus 62, a third low-humidity bronchus 63 and a fourth low-humidity bronchus 64; one end of the first low-humidity bronchus 61 is connected to the buffer outlet pipe 22, and the other end is connected to the powder funnel 51; a first control valve 611 is provided on the first low-humidity bronchus 61, and the first control valve 611 is communicated with the controller 3; one end of the second low-humidity bronchus 62 ... The air outlet pipe 22 is connected, and the other end is connected to the capsule funnel 52; the second low-humidity bronchus 62 is provided with a second control valve 621, and the second control valve 621 is communicated with the controller 3; one end of the third low-humidity bronchus 63 is connected to the buffer air outlet pipe 22, and the other end is connected to the top of the first capsule filling chamber 53; the third low-humidity bronchus 63 is provided with a third control valve 631, and the third control valve 631 is communicated with the controller 3; one end of the fourth low-humidity bronchus 64 is connected to the buffer air outlet pipe 22, and the other end is connected to the top of the second capsule filling chamber 54; the fourth low-humidity bronchus 64 is provided with a fourth control valve 641, and the fourth control valve 641 is communicated with the controller 3.

[0052] Specifically, to measure the humidity within the powder hopper 51, capsule hopper 52, the top of the first capsule filling chamber 53, and the top of the second capsule filling chamber 54, and to facilitate controlling the flow of dry compressed gas introduced into the powder hopper 51, capsule hopper 52, the top of the first capsule filling chamber 53, and the top of the second capsule filling chamber 54, the capsule filling device further includes a first humidity sensor, a second humidity sensor, a third humidity sensor, and a fourth humidity sensor for respectively detecting the humidity within the powder hopper 51, capsule hopper 52, the top of the first capsule filling chamber 53, and the top of the second capsule filling chamber 54. The first humidity sensor, the second humidity sensor, the third humidity sensor, and the fourth humidity sensor are each communicatively connected to the controller 3. The top of the first capsule filling chamber 53 and the top of the second capsule filling chamber 54 are different locations within the same capsule filling machine 5.

[0053] Specifically, to facilitate installation and fixation of the first, second, third, and fourth humidity sensors, one end of the first humidity sensor is disposed within the powder hopper 51 and one end is disposed outside the powder hopper 51, that is, the first humidity sensor is disposed on the powder hopper cover above the powder hopper 51. One end of the second humidity sensor is disposed within the capsule hopper 52 and one end is disposed outside the capsule hopper 52, that is, the second humidity sensor is disposed on the powder hopper cover above the capsule hopper 52. One end of the third humidity sensor is disposed within the top of the first capsule filling chamber 53 and one end is disposed outside the top of the first capsule filling chamber 53. One end of the fourth humidity sensor is disposed within the top of the second capsule filling chamber 54 and one end is disposed outside the top of the second capsule filling chamber 54.

[0054] Specifically, to control the flow of dry compressed air into the polisher feed port 41, improve the stability of the dry compressed air flow into the polisher feed port 41, and control the size of the dry compressed air flow, the capsule filling device also includes a capsule polishing and sorting machine 4 and a fifth low-humidity bronchial tube 45. The capsule polishing and sorting machine 4 includes the polisher feed port 41. One end of the fifth low-humidity bronchial tube 45 is connected to the buffer outlet pipe 22, and the other end is connected to the polisher feed port 41. The fifth low-humidity bronchial tube 45 is provided with a fifth control valve 451, which is in communication with the controller 3.

[0055] Specifically, in order to measure the humidity of the polishing machine feed port 41, to facilitate the control of the flow rate of the dry compressed gas entering the polishing machine feed port 41, and to facilitate the control of the air humidity of the polishing machine feed port 41, the capsule filling device also includes a fifth humidity sensor arranged at the polishing machine feed port 41 and used to detect the humidity of the polishing machine feed port 41. The fifth humidity sensor is communicatively connected to the controller 3.

[0056] Specifically, to control the flow of dry compressed air into the metal detector feed port 71, improve the stability of the dry compressed air flow, and control the size of the dry compressed air flow, the capsule filling device also includes a metal detector 7 and a sixth low-humidity bronchial tube 75. The metal detector 7 includes the metal detector feed port 71. One end of the sixth low-humidity bronchial tube 75 is connected to the buffer outlet pipe 22, and the other end is connected to the metal detector feed port 71. A sixth control valve 751 is provided on the sixth low-humidity bronchial tube 75, which is in communication with the controller 3.

[0057] Specifically, to achieve humidity control at the metal detector feed inlet 71, the flow rate of dry compressed gas introduced into the metal detector feed inlet 71 is controlled, thereby facilitating control of the air humidity at the metal detector feed inlet 71. The capsule filling device further includes a sixth humidity sensor disposed at the metal detector feed inlet 71 for detecting humidity at the metal detector feed inlet 71. The sixth humidity sensor is communicatively connected to the controller 3.

[0058] Specifically, in order to control the dry compressed air entering the hopper 81, improve the stability of the dry compressed air flow entering the hopper 81, and control the size of the dry compressed air flow, the capsule filling device also includes a lifting loader 8 and a seventh low-humidity bronchial tube 85. The lifting loader 8 includes the hopper 81. One end of the seventh low-humidity bronchial tube 85 is connected to the buffer outlet pipe 22, and the other end is connected to the hopper 81. The seventh low-humidity bronchial tube 85 is provided with a seventh control valve 851, which is in communication with the controller 3.

[0059] Specifically, to measure the humidity within hopper 81 and control the flow of dry compressed gas entering hopper 81 and the humidity within hopper 81, the capsule filling device further includes a seventh humidity sensor for detecting the humidity within hopper 81. The seventh humidity sensor is communicatively connected to controller 3. One end of the seventh humidity sensor is disposed within hopper 81, and the other end is disposed outside hopper 81. Specifically, the seventh humidity sensor is disposed on the powder hopper cover above hopper 81.

[0060] The working principle of the present invention is as follows: Before dry compressed air is introduced into the capsule filling machine 5, the controller 3 controls the main control valve 221, the first control valve 611, the second control valve 621, the third control valve 631, the fourth control valve 641, the fifth control valve 451, the sixth control valve 751, and the seventh control valve 851 to close. The dry compressed air then flows through the dry compressed air inlet pipe 21 and into the buffer tank 1. After being buffered within the buffer tank 1, the dry compressed air enters the buffer outlet pipe 22, opening the main control valve 221. When the controller 3 detects, via the first humidity sensor, that the humidity within the powder hopper 51 is above 15% RH, the controller 3 controls the first control valve 611 to open, allowing the dry compressed air within the buffer tank 1 to flow into the powder hopper 51 through the buffer outlet pipe 22 and the first low-humidity bronchial pipe 61. When the controller 3 detects, via the first humidity sensor, that the humidity within the powder hopper 51 is below 10% RH, the controller 3 controls the first control valve 611 to close. When the controller 3 detects through the second humidity sensor that the humidity in the capsule hopper 52 is higher than 15% RH, the controller 3 controls the second control valve 621 to open, and the dry compressed gas in the buffer tank 1 is passed into the capsule hopper 52 through the buffer outlet pipe 22 and the second low-humidity bronchial pipe 62. When the controller 3 detects through the second humidity sensor that the humidity in the capsule hopper 52 is lower than 10% RH, the controller 3 controls the second control valve 621 to close. When the controller 3 detects through the second humidity sensor that the humidity in the top of the first capsule filling chamber 53 is higher than 15% RH, the controller 3 controls the third control valve 631 to open, and the dry compressed gas in the buffer tank 1 is passed into the top of the first capsule filling chamber 53 through the buffer outlet pipe 22 and the third low-humidity bronchial pipe 63. When the controller 3 detects through the third humidity sensor that the humidity in the top of the first capsule filling chamber 53 is lower than 10% RH, the controller 3 controls the third control valve 631 to close. When the controller 3 detects through the second humidity sensor that the humidity in the top of the second capsule filling chamber 54 is higher than 15% RH, the controller 3 controls the fourth control valve 641 to open, and the dry compressed gas in the buffer tank 1 is passed into the top of the second capsule filling chamber 54 through the buffer outlet pipe 22 and the fourth low-humidity bronchial pipe 64. When the controller 3 detects through the fourth humidity sensor that the humidity in the top of the second capsule filling chamber 54 is lower than 10% RH, the controller 3 controls the fourth control valve 641 to close. When the controller 3 detects through the fifth humidity sensor that the humidity at the polishing machine feed inlet 41 is higher than 15% RH, the controller 3 controls the fifth control valve 451 to open, and the dry compressed gas in the buffer tank 1 is passed into the polishing machine feed inlet 41 through the buffer outlet pipe 22 and the fifth low-humidity bronchial pipe 45. When the controller 3 detects through the fifth humidity sensor that the humidity at the polishing machine feed inlet 41 is lower than 10% RH, the controller 3 controls the fifth control valve 451 to close.When the controller 3 detects through the sixth humidity sensor that the humidity at the metal detector inlet 71 is higher than 15% RH, the controller 3 controls the sixth control valve 751 to open, allowing the dry compressed gas in the buffer tank 1 to flow into the metal detector inlet 71 through the buffer outlet pipe 22 and the sixth low-humidity bronchial pipe 75. When the controller 3 detects through the sixth humidity sensor that the humidity in the metal detector inlet 71 is lower than 10% RH, the controller 3 controls the sixth control valve 751 to close. When the controller 3 detects through the seventh humidity sensor that the humidity in the hopper 81 is higher than 15% RH, the controller 3 controls the seventh control valve 851 to open, allowing the dry compressed gas in the buffer tank 1 to flow into the hopper 81 through the buffer outlet pipe 22 and the seventh low-humidity bronchial pipe 85. When the controller 3 detects through the seventh humidity sensor that the humidity in the hopper 81 is lower than 10% RH, the controller 3 controls the seventh control valve 851 to close.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A capsule filling device, characterized in that: include: Buffer tank (1); A drying and compression air inlet pipe (21), one end of the buffer tank (1) being in communication with the drying and compression air inlet pipe (21); a buffer gas outlet pipe (22), one end of the buffer gas outlet pipe (22) being in communication with the buffer tank (1), and a main control valve (221) being provided on the buffer gas outlet pipe (22); A controller (3), wherein the master control valve (221) is in communication connection with the controller (3); and The capsule filling machine (5) has the other end of the buffer air outlet pipe (22) connected to the capsule filling machine (5).

2. The capsule filling device according to claim 1, characterized in that: Also includes: A capsule-filled trachea assembly (6), wherein the capsule-filled trachea assembly (6) comprises at least two bronchi; The other end of the buffer air outlet pipe (22) is connected to the capsule filling machine (5) through a capsule filling air pipe assembly.

3. The capsule filling device according to claim 2, characterized in that: The capsule filling machine (5) comprises: a medicine powder funnel (51), a capsule funnel (52), a top of a first capsule filling chamber (53) and a top of a second capsule filling chamber (54); The capsule-filled trachea assembly comprises: a first low-humidity bronchus (61), a second low-humidity bronchus (62), a third low-humidity bronchus (63) and a fourth low-humidity bronchus (64); One end of the first low-humidity bronchus (61) is in communication with the buffer outlet pipe (22), and the other end is in communication with the medicine powder funnel (51); a first control valve (611) is provided on the first low-humidity bronchus (61), and the first control valve (611) is in communication connection with the controller (3); One end of the second low-humidity bronchus (62) is in communication with the buffer outlet pipe (22), and the other end is in communication with the capsule funnel (52); a second control valve (621) is provided on the second low-humidity bronchus (62), and the second control valve (621) is in communication connection with the controller (3); One end of the third low-humidity bronchial tube (63) is in communication with the buffer outlet pipe (22), and the other end is in communication with the top of the first capsule filling chamber (53); a third control valve (631) is provided on the third low-humidity bronchial tube (63), and the third control valve (631) is in communication connection with the controller (3); One end of the fourth low-humidity bronchial tube (64) is in communication with the buffer outlet pipe (22), and the other end is in communication with the top of the second capsule filling chamber (54); a fourth control valve (641) is provided on the fourth low-humidity bronchial tube (64), and the fourth control valve (641) is in communication connection with the controller (3).

4. The capsule filling device according to claim 3, characterized in that: It also includes a first humidity sensor, a second humidity sensor, a third humidity sensor, and a fourth humidity sensor for respectively detecting the humidity in the powder hopper (51), the capsule hopper (52), the top of the first capsule filling chamber (53), and the top of the second capsule filling chamber (54); the first humidity sensor, the second humidity sensor, the third humidity sensor, and the fourth humidity sensor are respectively connected to the controller (3) for communication.

5. The capsule filling device according to claim 4, characterized in that: One end of the first humidity sensor is arranged inside the medicine powder funnel (51), and the other end is arranged outside the medicine powder funnel (51); One end of the second humidity sensor is arranged inside the capsule funnel (52), and the other end is arranged outside the capsule funnel (52); One end of the third humidity sensor is arranged in the first capsule filling chamber (53), and the other end is arranged outside the top of the first capsule filling chamber (53); One end of the fourth humidity sensor is arranged in the second capsule filling chamber (54), and the other end is arranged outside the top of the second capsule filling chamber (54).

6. The capsule filling device according to any one of claims 1 to 5, characterized in that: It also includes a capsule polishing and sorting machine (4) and a fifth low-humidity bronchial tube (45), wherein the capsule polishing and sorting machine (4) includes a polishing machine feed port (41); One end of the fifth low-humidity bronchial tube (45) is in communication with the buffer outlet pipe (22), and the other end is in communication with the polishing machine feed port (41); a fifth control valve (451) is provided on the fifth low-humidity bronchial tube (45), and the fifth control valve (451) is in communication connection with the controller (3).

7. The capsule filling device according to claim 6, characterized in that: It also comprises a fifth humidity sensor which is arranged at the polishing machine feed port (41) and is used to detect the humidity of the polishing machine feed port (41); the fifth humidity sensor is in communication connection with the controller (3).

8. The capsule filling device according to claim 7, characterized in that: It also includes a metal detector (7) and a sixth low-humidity bronchial tube (75), wherein the metal detector (7) includes a metal detector feed port (71); One end of the sixth low-humidity bronchial pipe (75) is in communication with the buffer outlet pipe (22), and the other end is in communication with the metal detector feed port (71); a sixth control valve (751) is provided on the sixth low-humidity bronchial pipe (75), and the sixth control valve (751) is in communication connection with the controller (3).

9. The capsule filling device according to claim 8, characterized in that: It also comprises a sixth humidity sensor which is arranged at the metal detector feed port (71) and is used to detect the humidity of the metal detector feed port (71); the sixth humidity sensor is in communication connection with the controller (3).

10. The capsule filling device according to claim 9, characterized in that: It also includes a lifting and loading machine (8) and a seventh low-humidity bronchial tube (85), wherein the lifting and loading machine (8) includes a hopper (81); One end of the seventh low-humidity bronchial tube (85) is in communication with the buffer outlet pipe (22), and the other end is in communication with the hopper (81); a seventh control valve (851) is provided on the seventh low-humidity bronchial tube (85), and the seventh control valve (851) is in communication connection with the controller (3); It also includes a seventh humidity sensor for detecting the humidity in the hopper (81), wherein the seventh humidity sensor is in communication connection with the controller (3); One end of the seventh humidity sensor is arranged inside the hopper (81), and the other end is arranged outside the hopper (81).

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