Sampling device of wet type granulator

Abstract

The utility model belongs to the technical field of wet type granulators, and particularly relates to a sampling device of a wet type granulator, which comprises a plugging pipe, a sampling pipe and a sample collecting bottle, the plugging pipe is detachably connected with the lower sampling opening of the barrel body, the sampling pipe is obliquely and fixedly connected to the bottom of the side, close to the sampling opening, of the plugging pipe, and the sample collecting bottle is in threaded connection to the inner wall of the side, away from the plugging pipe, of the sampling pipe. The sampling device of the wet type granulator has the beneficial effects that the sampling device of the wet type granulator does not need to enter the barrel body in the sampling process, the operation of a stirring paddle and a cutter which rotate in the barrel body is not influenced, the problem that the sampling device is difficult to mount on the wet type granulator is solved, and meanwhile, the wet type granulator does not need to be suspended in the sampling process, so that the efficiency of the wet type granulator is improved; according to the sampling device of the wet type granulator, the sampling device is prevented from being blocked due to multiple times of sampling, meanwhile, sampling residual materials are prevented from influencing a next detection result, and the sampling device can be cleaned after being detached so as to prevent the residual materials from influencing the quality of a next batch of products.

Description

Technical Field

[0001] The utility model belongs to the technical field of wet granulators, and particularly relates to a sampling device for a wet granulator. Background Art

[0002] Inside the barrel of a wet granulator, there are rotating stirring paddles and cutters, so it is difficult to install a sampling device. During the wet granulation production stage, the end point of granulation can be judged according to time and torque. However, when changing the formula, medicine, or operator during production, sampling is still required to detect data such as the water content and bulk density of the sample, so as to determine the end point of granulation. At the same time, sampling observation and analysis are also required during the exploration stage of the medicine granulation method and the machine debugging stage to determine the optimal granulation method.

[0003] If the barrel of the wet granulator is directly opened for sampling, it will affect the cleanliness of the clean room and there is a risk of contaminating the medicine. At the same time, for toxic and volatile medicines, it may also cause harm to the health of operators. Therefore, the wet granulator needs to be sampled under closed conditions. The wet granulator grinds wet powder into required granules. When the sampling device of the prior art takes out the wet powder, some wet powder will adhere to the inlet of the sampling device. Due to sampling being required at different time periods, after multiple samplings, the powder at the inlet of the sampling device accumulates and causes blockage, and the sampling device is not easy to disassemble and clean. The residual medicine in the sampling device affects the test results and there is also a problem of reducing the quality of the next batch of products. Summary of the Utility Model

[0004] Aiming at the problems that it is difficult to install a sampling device for the wet granulator, the wet granulator needs to be sampled under closed conditions, multiple samplings cause powder blockage of the sampling device, and the sampling device is not easy to disassemble and clean, the utility model provides a sampling device for a wet granulator.

[0005] The utility model relates to a sampling device for a wet granulator, which includes a plugging pipe, a sampling pipe, and a sampling bottle;

[0006] The plugging pipe is detachably connected to the sampling port at the lower part of the barrel. The sampling pipe is obliquely and fixedly connected to the bottom of the plugging pipe on the side close to the sampling port. The sampling bottle is threadedly connected to the inner wall of the sampling pipe on the side far from the plugging pipe.

[0007] Preferably, the plugging tube comprises a plugging tube body, a plugging head, a guiding shaft and a guiding shaft fixing cover; the plugging tube body is detachably connected to the barrel body, the guiding shaft fixing cover is threadedly connected to the outer wall of the plugging tube body on the side away from the sampling port, the plugging head slides inside the plugging tube body on the side close to the sampling port, one side of the plugging head away from the sampling port is fixedly connected to the guiding shaft, the guiding shaft slides in the shaft hole opened in the guiding shaft fixing cover, a sealing gasket is arranged between the shaft hole and the guiding shaft, a first limiting structure is slidably connected to the outer wall of the guiding shaft between the plugging head and the guiding shaft fixing cover, and a second limiting structure is threadedly connected to the side of the guiding shaft away from the plugging head.

[0008] Preferably, the sampling tube comprises a sampling tube body and a sample collecting bottle connecting tube; the sampling tube body is fixedly connected to the plugging tube, the sample collecting bottle connecting tube is fixedly connected to the side of the sampling tube body away from the plugging tube, the sample collecting bottle is threadedly connected to the inner wall of the sample collecting bottle connecting tube, a sealing ring is arranged at the connection between the sample collecting bottle connecting tube and the sample collecting bottle, and the diameter of the inner wall of the sampling tube body is equal to the diameter of the bottle mouth of the sample collecting bottle.

[0009] Preferably, the plugging head is a cylindrical plugging head, the outer wall of the cylindrical plugging head is closely attached to the inner wall of the plugging tube body, the material of the cylindrical plugging head is fluororubber, and the length of the outer wall of the cylindrical plugging head is greater than the diameter of the inner wall of the sampling tube body.

[0010] Preferably, the first limiting structure comprises two limiting bushings, a spiral spring is arranged between the two limiting bushings, two limiting plates are arranged on both sides of the limiting bushings, the guiding shaft slides in the middle of the limiting bushings, the limiting plates and the spiral spring, and the maximum compression amount of the spiral spring is equal to the length of the cylindrical plugging head.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Compared with the prior art, by using the sampling device of the wet granulator of the present utility model,

[0013] (1) The sampling device of the wet granulator does not need to enter the inside of the barrel during the whole sampling process, and the operation of the stirring paddle and the cutter rotating inside the barrel will not be affected during the sampling process, thus solving the problem that the sampling device is difficult to be installed on the wet granulator. At the same time, the wet granulator does not need to be paused during sampling, improving the efficiency of the wet granulator;

[0014] (2) The plugging head is closely attached to the inner wall of the plugging tube body. When the plugging head rebounds to the sampling port, the materials in the plugging tube are pushed back into the barrel, avoiding the problem that the sampling device is blocked due to multiple samplings. At the same time, it avoids the influence of the residual sampling materials on the detection results of the next sampling, ensuring the accuracy of the sample detection.

[0015] (3) After the wet granulator is used up, unscrew the fixing cover of the guide shaft, and the plug head, the first limiting structure, and the guide shaft inside the plugging pipe body can be taken out. At the same time, unscrew the sample collecting bottle, and clean the plugging pipe body, the sampling pipe body, and the plug head respectively. The sampling device of this wet granulator is convenient for cleaning after disassembly, avoiding the influence of residual materials on the quality of the next batch of products. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments:

[0017] Figure 1 Schematic diagram of the sampling device of the wet granulator provided for Embodiment 1

[0018] Figure 2 Schematic diagram of the sampling device of the wet granulator provided for Embodiment 1 installed on the barrel

[0019] Figure 3 Top view of the sampling device of the wet granulator provided for Embodiment 1

[0020] Figure 4 Side view of the sampling device of the wet granulator provided for Embodiment 1.

[0021] Description of the reference numerals:

[0022] 1 - Plugging pipe, 2 - Sampling pipe, 3 - Sample collecting bottle, 4 - Sampling port, 5 - Plugging pipe body, 6 - Plug head, 7 - Guide shaft, 8 - Fixing cover of the guide shaft, 9 - First limiting structure, 10 - Second limiting structure, 11 - Axial hole, 12 - Sampling pipe body, 13 - Connecting pipe of the sample collecting bottle, 14 - Limiting bushing, 15 - Limiting plate, 16 - Helical spring. Detailed Embodiments

[0023] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present invention, the following will further describe the present invention in conjunction with the drawings and embodiments.

[0024] Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0025] Embodiment 1

[0026] The following will further describe the present invention in conjunction with Figures 1 - 4 As shown in Figures 1 - 4 a sampling device of a wet granulator, including a plugging pipe 1, a sampling pipe 2, and a sample collecting bottle 3.

[0027] The plugging pipe 1 is detachably connected to the sampling port 4 at the lower part of the barrel body. The sampling pipe 2 is obliquely and fixedly connected to the bottom of the plugging pipe 1 on the side close to the sampling port 4. The sample collecting bottle 3 is threadedly connected to the inner wall of the sampling pipe 2 on the side away from the plugging pipe 1.

[0028] As Figures 1 - 4 shown, the plugging pipe 1 includes a plugging pipe body 5, a plugging head 6, a guide shaft 7 and a guide shaft fixing cover 8. The plugging pipe body 5 is detachably connected to the barrel body. The guide shaft fixing cover 8 is threadedly connected to the outer wall of the plugging pipe body 5 on the side away from the sampling port 4. The plugging head 6 slides inside the plugging pipe body 5 on the side close to the sampling port 4. One side of the plugging head 6 away from the sampling port 4 is fixedly connected to the guide shaft 7. The guide shaft 7 slides in the shaft hole 11 opened in the guide shaft fixing cover 8. A sealing gasket is provided between the shaft hole 11 and the guide shaft 7. A first limiting structure 9 is slidably connected to the outer wall of the guide shaft 7 between the plugging head 6 and the guide shaft fixing cover 8. A second limiting structure 10 is threadedly connected to the side of the guide shaft 7 away from the plugging head 6.

[0029] As Figures 1 - 4 shown, the sampling pipe 2 includes a sampling pipe body 12 and a sample collecting bottle connecting pipe 13. The sampling pipe body 12 is fixedly connected to the plugging pipe 1. The sample collecting bottle connecting pipe 13 is fixedly connected to the side of the sampling pipe body 12 away from the plugging pipe 1. The sample collecting bottle 3 is threadedly connected to the inner wall of the sample collecting bottle connecting pipe 13. A sealing ring is provided at the connection between the sample collecting bottle connecting pipe 13 and the sample collecting bottle 3. The diameter of the inner wall of the sampling pipe body 12 is equal to the diameter of the bottle mouth of the sample collecting bottle 3.

[0030] As Figures 1 - 4 shown, the plugging head 6 is a cylindrical plugging head. The outer wall of the cylindrical plugging head is closely attached to the inner wall of the plugging pipe body 5. The material of the cylindrical plugging head is fluororubber. The length of the outer wall of the cylindrical plugging head is greater than the diameter of the inner wall of the sampling pipe body 12.

[0031] As Figures 1 - 4 shown, the first limiting structure 9 includes two limiting bushings 14. A spiral spring 16 is provided between the two limiting bushings 14. Two limiting plates 15 are provided on both sides of the limiting bushing 14. The guide shaft 7 slides in the middle of the limiting bushing 14, the limiting plate 15 and the spiral spring 16. The maximum compression amount of the spiral spring 16 is equal to the length of the cylindrical plugging head.

[0032] Working principle: The operator pulls the limit structure II 10, and the plugging head 6 moves away from the sampling port 4. When the spiral spring 16 of the limit structure I 9 can no longer be compressed, the opening at the connection between the plugging tube 1 and the sampling tube 2 is just completely opened. The sample passes through the sampling port 4, the plugging tube 1 and the sampling tube 2 in sequence and enters the sample collection bottle 3. The operator releases the limit structure II 10, and the plugging head 6 rebounds through the spiral spring 16 of the limit structure I 9. The limit structure II 10 moves towards the sampling port 4 until it is blocked by the guide shaft fixed cover 8. At this time, the opening at the connection between the plugging tube 1 and the sampling tube 2 is completely closed, and the sample remaining near the sampling port 4 is pushed back into the barrel by the plugging head 6.

[0033] After the wet granulator is used up, unscrew the guide shaft fixed cover 8, take out the plugging head 6, the limit structure I 9 and the guide shaft 7 inside the plugging tube body 5, and at the same time unscrew the sample collection bottle 3. After cleaning the plugging tube body 5 and the sampling tube body 12 with a brush, wipe them with a cotton ball soaked in organic solvent picked up by tweezers. After cleaning the plugging head 6, dry it.

[0034] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification and equivalent change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A sampling device for a wet granulator, characterized in that, It includes a plugging pipe (1), a sampling pipe (2) and a sampling bottle (3); The plugging pipe (1) is detachably connected to the sampling port (4) at the lower part of the barrel body. The sampling pipe (2) is obliquely and fixedly connected to the bottom of the plugging pipe (1) on the side close to the sampling port (4). The sampling bottle (3) is threadedly connected to the inner wall of the sampling pipe (2) on the side far from the plugging pipe (1); The plugging pipe (1) includes a plugging pipe body (5), a plugging head (6), a guide shaft (7) and a guide shaft fixing cover (8). The plugging pipe body (5) is detachably connected to the barrel body. The guide shaft fixing cover (8) is threadedly connected to the outer wall of the plugging pipe body (5) on the side far from the sampling port (4). The plugging head (6) slides inside the plugging pipe body (5) on the side close to the sampling port (4). One side of the plugging head (6) far from the sampling port (4) is fixedly connected to the guide shaft (7). The guide shaft (7) slides in the shaft hole (11) opened in the guide shaft fixing cover (8). A sealing gasket is provided between the shaft hole (11) and the guide shaft (7). A first limiting structure (9) is slidably connected to the outer wall of the guide shaft (7) between the plugging head (6) and the guide shaft fixing cover (8). A second limiting structure (10) is threadedly connected to the side of the guide shaft (7) far from the plugging head (6).

2. The sampling device of the wet granulator according to claim 1, wherein The sampling pipe (2) includes a sampling pipe body (12) and a sampling bottle connecting pipe (13). The sampling pipe body (12) is fixedly connected to the plugging pipe (1). The sampling bottle connecting pipe (13) is fixedly connected to the side of the sampling pipe body (12) far from the plugging pipe (1). The sampling bottle (3) is threadedly connected to the inner wall of the sampling bottle connecting pipe (13). A sealing ring is provided at the connection between the sampling bottle connecting pipe (13) and the sampling bottle (3). The diameter of the inner wall of the sampling pipe body (12) is equal to the diameter of the mouth of the sampling bottle (3).

3. The sampling device of the wet granulator according to claim 2, characterized in that, The plugging head (6) is a cylindrical plugging head. The outer wall of the cylindrical plugging head is closely attached to the inner wall of the plugging pipe body (5). The material of the cylindrical plugging head is fluororubber. The length of the outer wall of the cylindrical plugging head is greater than the diameter of the inner wall of the sampling pipe body (12).

4. The sampling device of the wet granulator according to claim 3, characterized in that, The first limiting structure (9) includes two limiting bushings (14). A helical spring (16) is provided between the two limiting bushings (14). Two limiting plates (15) are provided on both sides of the limiting bushing (14). The guide shaft (7) slides in the middle of the limiting bushing (14), the limiting plate (15) and the helical spring (16). The maximum compression amount of the helical spring (16) is equal to the length of the cylindrical plugging head.

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