Automatic sampling device for powder raw material inspection

Abstract

The utility model discloses an automatic sampling device for powder raw material inspection, which relates to the technical field of sampling and comprises a sampling pipeline, a motor support is fixedly mounted on the outer wall of the sampling pipeline, a rotary plugging component is rotatably mounted on the sampling pipeline simultaneously, and the rotary plugging component consists of a rotary gear ring and a plugging pipe. The rotating gear ring is fixedly installed at one end of the plugging pipe, a driving assembly is fixedly installed on the motor support, the driving assembly is composed of a driving motor and a driving gear, the driving gear is fixedly installed on an output shaft of the driving motor, and the driving gear is meshed with the rotating gear ring at the same time. The driving assembly drives the rotary plugging assembly to rotate on the sampling pipeline, and the first sampling port formed in the sampling pipeline can be sealed, so that the first sampling port is prevented from being in an open state for a long time, and powder during last sampling is prevented from being reserved in the sampling pipeline; and finally, the influence of cross contamination of different batches of samples on the accuracy of sampling data is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sampling technical field, especially a kind of automatic sampling device for powder raw material inspection. BACKGROUND

[0002] Milk powder inspection covers physical and chemical indexes, microorganisms, pollutants, additives and nutritional ingredients, while verifying sensory properties and label compliance to ensure product safety, nutrition and legality. When milk powder is inspected, automatic sampling device is needed to automatically sample milk powder. Automatic sampling device mainly includes spiral (rotary drill to take deep sample), pneumatic (air flow to extract light powder), sample divider (uniform sample), rotary tube (continuous uniform sampling) and vacuum (negative pressure to suck loose material), with characteristics of automation, pollution prevention, accurate quantification, suitable for online detection and quality control in food, chemical, pharmaceutical and other industries.

[0003] In the existing patent application No. CN201520188675.3, a powder automatic sampling device is proposed, but the feed inlet structure design of the powder automatic sampling device has obvious defects. Since the necessary sealing component is not configured, the feed inlet is in an open state for a long time, so the powder from the last sampling will remain in the feed inlet. The open feed inlet structure is easy to cause cross contamination of different batches of samples, which seriously affects the accuracy of sampling data, so it needs to be improved. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide an automatic sampling device for powder raw material inspection, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] An automatic sampling device for powder raw material inspection, comprising a sampling pipeline, a motor support is fixedly installed on the outer wall of the sampling pipeline, a rotary sealing assembly is rotatably installed on the sampling pipeline, the rotary sealing assembly is composed of a rotary gear ring and a sealing pipe, the rotary gear ring is fixedly installed at one end of the sealing pipe, a drive assembly is fixedly installed on the motor support, the drive assembly is composed of a drive motor and a drive gear, the drive gear is fixedly installed on the output shaft of the drive motor, and the drive gear is engaged with the rotary gear ring.

[0007] Preferably, a first connecting frame is fixedly arranged on the sampling pipeline, a second connecting frame is fixedly arranged at the upper end of the first connecting frame, the second connecting frame is also fixedly arranged on the powder pipeline, a sampling motor is fixedly arranged at one end of the sampling pipeline, a sampling auger is rotatably arranged in the sampling pipeline and is fixedly connected with the output shaft of the sampling motor, a first sampling opening is arranged on the sampling pipeline, a discharging pipe is also fixedly arranged on the sampling pipeline, and a connecting ring is also fixedly arranged on the sampling pipeline.

[0008] Preferably, a hole is arranged on the powder pipeline, one end of the sampling pipeline is inserted into the powder pipeline through the hole arranged on the powder pipeline, the first sampling opening is arranged in the powder pipeline, the connecting ring is arranged outside the powder pipeline and between the powder pipeline and the discharging pipe, and the second connecting frame is arranged above the hole arranged on the powder pipeline.

[0009] Preferably, the rotating tooth ring and the blocking pipe of the rotating blocking assembly are both rotatably arranged on the sampling pipeline, an annular groove is arranged on the inner wall of the rotating tooth ring, and the rotating tooth ring is rotatably arranged on the connecting ring through the annular groove.

[0010] Preferably, the blocking pipe of the rotating blocking assembly is rotatably arranged in the hole arranged on the powder pipeline, a second sampling opening is arranged on the blocking pipe and in the powder pipeline, the outer wall of the blocking pipe is in contact with the inner wall of the hole arranged on the powder pipeline, and the inner wall of the blocking pipe is in contact with the outer wall of the sampling pipeline.

[0011] Preferably, the driving motor of the driving assembly is fixedly arranged on the motor support.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] By arranging the rotating blocking assembly and the driving assembly, the driving assembly drives the rotating blocking assembly to rotate on the sampling pipeline, the first sampling opening arranged on the sampling pipeline can be closed, so that the first sampling opening is prevented from being in an open state for a long time, the powder left in the sampling pipeline during the last sampling is prevented, and the cross contamination of different batches of samples is prevented from affecting the accuracy of the sampling data. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a structure schematic view after the rotating blocking assembly and the driving assembly are removed;

[0016] Figure 3 It is a position relation structure schematic view of the sampling pipeline, the rotating blocking assembly and the driving assembly of the utility model.

[0017] Figure 4 This is a schematic diagram showing the positional relationship between the rotary sealing component and the driving component of this utility model.

[0018] In the diagram: 1. Sampling pipe; 2. Feed pipe; 3. Motor bracket; 4. Rotary sealing assembly; 5. Drive assembly; 6. First connecting frame; 7. Second connecting frame; 8. Sampling motor; 9. Sampling auger; 10. First sampling port; 11. Connecting ring; 12. Drive gear; 13. Rotary gear ring; 14. Annular groove; 15. Sealing pipe; 16. Second sampling port; 17. Drive motor; 18. Powder pipe. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, an automatic sampling device for testing powder raw materials includes a sampling pipe 1. A motor bracket 3 is fixedly installed on the outer wall of the sampling pipe 1. A rotary sealing assembly 4 is rotatably installed on the sampling pipe 1. The rotary sealing assembly 4 consists of a rotary gear ring 13 and a sealing tube 15. The rotary gear ring 13 is fixedly installed at one end of the sealing tube 15. A drive assembly 5 is fixedly installed on the motor bracket 3. The drive assembly 5 consists of a drive motor 17 and a drive gear 12. The drive gear 12 is fixedly installed on the output shaft of the drive motor 17 and meshes with the rotary gear ring 13. The sampling pipe 1 is fitted with a first connecting frame 6, and a second connecting frame 7 is fixedly installed on the upper end of the first connecting frame 6. The second connecting frame 7 is also fixedly fitted on the powder pipe 18. A sampling motor 8 is fixedly installed at one end of the sampling pipe 1. A sampling auger 9 is rotatably installed inside the sampling pipe 1 and is fixedly connected to the output shaft of the sampling motor 8. A first sampling port 10 is provided on the sampling pipe 1. A discharge pipe 2 is also fixedly installed on the sampling pipe 1. A connecting ring 11 is also fixedly fitted on the sampling pipe 1. A hole is provided on the powder pipe 1. One end is inserted into the powder pipe 18 through a hole. The first sampling port 10 is located inside the powder pipe 18. The connecting ring 11 is located outside the powder pipe 18 and is also located between the powder pipe 18 and the discharge pipe 2. The second connecting bracket 7 is located above the hole in the powder pipe 18. In use, first ensure that the second sampling port 16 on the sealing tube 15 of the rotating sealing assembly 4 is misaligned with the first sampling port 10 on the sampling pipe 1. At this time, the first sampling port 10 is in a closed state to prevent powder from entering the sampling pipe 1. When sampling is required, start the drive. The drive motor 17 drives the gear 12 to rotate the rotating gear ring 13, causing the sealing tube 15 to rotate until the second sampling port 16 is aligned with the first sampling port 10, opening the sampling channel. During sampling, the sampling motor 8 is started, driving the sampling auger 9 to rotate. The powder enters the sampling pipe 1 through the first sampling port 10 and the second sampling port 16, and is then conveyed to the discharge pipe 2 by the sampling auger 9 for discharge. After sampling is completed, the drive motor 17 reverses, causing the sealing tube 15 to rotate until the second sampling port 16 is misaligned with the first sampling port 10, closing the sampling channel and preventing residual powder from contaminating the next batch of samples.

[0021] Finally, by setting the rotary sealing component 4 and the driving component 5, the driving component 5 drives the rotary sealing component 4 to rotate on the sampling pipe 1, which can seal the first sampling port 10 opened on the sampling pipe 1, thereby preventing the first sampling port 10 from being in an open state for a long time, thus preventing the powder from the last sampling from remaining in the sampling pipe 1, and ultimately preventing cross-contamination of different batches of samples from affecting the accuracy of the sampling data.

[0022] Specifically, the rotating toothed ring 13 and the sealing tube 15 on the rotating sealing assembly 4 are both rotatably mounted on the sampling pipe 1. An annular groove 14 is formed on the inner wall of the rotating toothed ring 13, which is rotatably fitted onto the connecting ring 11 through the annular groove 14. Simultaneously, the sealing tube 15 on the rotating sealing assembly 4 is rotatably mounted inside a hole in the powder pipe 18. A second sampling port 16 is formed on the sealing tube 15 and inside the powder pipe 18. The outer wall of the sealing tube 15 contacts the inner wall of the hole in the powder pipe 18, and the inner wall of the sealing tube 15 contacts the outer wall of the sampling pipe 1. The drive motor 17 on the drive assembly 5 is fixedly mounted on... On the motor bracket 3, the inner and outer walls of the sealing tube 15 must contact the outer wall of the sampling pipe 1 and the inner wall of the hole opened on the powder pipe 18, respectively, so as to prevent the powder conveyed in the powder pipe 18 from overflowing through the hole opened on the powder pipe 18. At the same time, it should also be ensured that the sealing tube 15 can rotate normally. The second sampling port 16 must be greater than or equal to the first sampling port 10, so as to ensure that the powder can enter the sampling pipe 1 normally. When it is necessary to close the sampling channel, the second sampling port 16 must be completely offset from the first sampling port 10. When it is necessary to open the sampling channel, the second sampling port 16 must be aligned with the first sampling port 10.

[0023] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An automatic sampling device for powder raw material inspection, comprising a sampling pipeline (1), a motor bracket (3) is fixedly installed on the outer wall of the sampling pipeline (1), characterized in that: The sampling pipeline (1) is provided with a rotating sealing assembly (4) which is rotatably installed on the sampling pipeline (1), the rotating sealing assembly (4) is composed of a rotating gear ring (13) and a sealing pipe (15), the rotating gear ring (13) is fixedly installed on one end of the sealing pipe (15), a driving assembly (5) is fixedly installed on the motor support (3), the driving assembly (5) is composed of a driving motor (17) and a driving gear (12), the driving gear (12) is fixedly installed on the output shaft of the driving motor (17), and the driving gear (12) is in meshing connection with the rotating gear ring (13).

2. The automatic sampling device for inspecting a powder material according to claim 1, characterized by: The sampling pipeline (1) is provided with a first connecting frame (6), the upper end of the first connecting frame (6) is fixedly provided with a second connecting frame (7), the second connecting frame (7) is fixedly sleeved on the powder pipeline (18), one end of the sampling pipeline (1) is fixedly provided with a sampling motor (8), a sampling auger (9) is rotatably installed in the sampling pipeline (1) and is fixedly connected with the output shaft of the sampling motor (8), a first sampling opening (10) is formed in the sampling pipeline (1), and a discharging pipe (2) is fixedly installed on the sampling pipeline (1).

3. The automatic sampling device for inspecting a powder material according to claim 2, characterized in that: A hole is formed in the powder pipeline (18), one end of the sampling pipeline (1) is inserted into the powder pipeline (18) through the hole formed in the powder pipeline (18), the first sampling opening (10) is located in the powder pipeline (18), the connecting ring (11) is located outside the powder pipeline (18), and the connecting ring (11) is located between the powder pipeline (18) and the discharging pipe (2), and the second connecting frame (7) is located above the hole formed in the powder pipeline (18).

4. The automatic sampling device for inspecting a powder material according to claim 3, characterized in that: The rotating gear ring (13) and the sealing pipe (15) of the rotating sealing assembly (4) are rotatably installed on the sampling pipeline (1), an annular groove (14) is formed in the inner wall of the rotating gear ring (13), and the rotating gear ring (13) is rotatably sleeved on the connecting ring (11) through the annular groove (14).

5. The automatic sampling device for inspecting a powder material according to claim 4, characterized in that: The sealing pipe (15) of the rotating sealing assembly (4) is rotatably installed in the hole formed in the powder pipeline (18), a second sampling opening (16) is formed in the sealing pipe (15) and in the powder pipeline (18), the outer wall of the sealing pipe (15) is in contact with the inner wall of the hole formed in the powder pipeline (18), and the inner wall of the sealing pipe (15) is in contact with the outer wall of the sampling pipeline (1).

6. The automatic sampling device for inspecting a powder material according to claim 5, characterized in that: The driving motor (17) of the driving assembly (5) is fixedly installed on the motor support (3).

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