A double-station sample collector with bag clamps

By designing a clamp-type dual-station sample collector, which employs a mobile cart and bag clamp structure, combined with a weight sensor and PLC control system, the problems of cumbersome operation and difficulty in controlling the sampling volume of existing sample collectors are solved, achieving efficient and automated sample collection.

CN224491673UActive Publication Date: 2026-07-14DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
Filing Date
2025-08-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing sample collectors are cumbersome to operate, requiring frequent manual replacement of sample containers, resulting in low efficiency and difficulty in accurately controlling the sample volume.

Method used

Design a dual-station sample collector with a clamping bag, which adopts a mobile cart and bag clamping structure, and is equipped with a weight sensor and PLC control system to realize automatic switching and precise control of the sampling volume, simplifying the sample collection process.

Benefits of technology

It improved work efficiency, simplified the sample replacement process, achieved automated sampling and precise control, reduced manual operation, and enhanced the flexibility and accuracy of the sampling equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224491673U_ABST
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Abstract

The utility model discloses a kind of double-station sample collector of bag clamping type.The device is simple structure, small, it is convenient to install, built-in two bag clamping type material receiving port, and can be automatically switched;It can replace the sample barrel of automatic sampling equipment, and the sample taken is loaded into two sample bags, and only sample bag needs to be replaced when taking sample, without replacing sample barrel, greatly improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to a sample collector, specifically a clamp-bag type dual-station sample collector, belonging to the field of sample collection technology. Background Technology

[0002] In industries such as cement, coal, chemicals, and grain processing, product quality control heavily relies on sample sampling and analysis. Frequent sampling and analysis of specific process points are necessary to adjust production ratios in real time. Most companies have adopted automated sampling equipment, which typically uses a sample container-style collector for sample collection. The sample container is then manually transported to the laboratory, where it is divided in two for testing and archiving, with any excess material requiring further processing. After testing, the cleaned sample container is placed back into the sample collector; this process is cumbersome and time-consuming. Currently, there is an urgent need for a compact, bag-type, dual-station sample collector that can precisely control the sampling volume to replace the traditional sample container-style collector. Summary of the Invention

[0003] This utility model is specifically a clamp-type dual-station sample collector. The device has a simple structure, small size, and is easy to install. It has two built-in clamp-type material receiving ports that can be automatically switched. It can replace the sample bucket that comes with the automatic sampling equipment. The sample is put into two sample bags (7). When taking the sample, only the sample bag (7) needs to be replaced. There is no need to replace the sample bucket, which greatly improves the work efficiency.

[0004] The technical solution adopted by this utility model is: a bag-type dual-station sample collector, characterized in that: it includes a frame (2), a moving cart (3), an inlet (1), a bag clamp (6), a rodless cylinder (9), a weight sensor (10), and a proximity switch (11); the rodless cylinder (9) is fixed on the frame (2), and its slider is connected to the moving cart (3). The bottom of the moving cart (3) is equipped with a pulley (8) and rests on a slide rail fixed to the bottom of the frame (2). The top of the moving cart (3) is provided with a receiving port I (4) and a receiving port II (5). The rodless cylinder (9) can drive the moving cart (3) to move left and right. Both the receiving port I (4) and the receiving port II (5) can overlap with the inlet (1). When the moving cart (3) is driven to the point where the receiving port I (4) overlaps with the inlet (1), it is called position one. When the receiving port II (5) overlaps with the inlet (1), it is called position two. Both receiving ports I (4) and II (5) are equipped with bag clamps (6), and the bag clamps (6) are equipped with magnetic blocks (61) to fix the opening of the sample bag (7). The bottom of the moving cart (3) is equipped with a weight sensor (10). After the sample bag (7) is fixed by the bag clamps (6), the bottom is placed on the weight sensor (10). The weight of the sample falling inside the sample bag (7) will be detected. After the value reaches the set value of the PLC control system (12), the PLC control system (12) issues a command to automatically switch the moving cart (3), and the set value is adjustable. The moving cart (3) is made of metal. The proximity switch (11) can sense the position of the moving cart (3) after it is moved by the rodless cylinder (9).

[0005] The beneficial effects of this utility model are:

[0006] Both the receiving port I (4) and the receiving port II (5) of this utility model are equipped with bag clips (6), making it convenient and quick to replace the sample bag (7). It can replace the traditional sample barrel type sample collector, eliminating the need for barrel replacement and cleaning, thus improving work efficiency.

[0007] This utility model is equipped with a PLC control system (12), which can connect the original sampling equipment and allow samples taken at the same time to flow into two sample bags (7), or collect samples from different time periods separately, making it flexible in use.

[0008] The mobile vehicle (3) of this utility model is equipped with a weight sensor (10) at the bottom, which is connected to the PLC control system (12). After the sampling amount reaches the set value, it can automatically switch to the receiving port corresponding to the inlet (1), which can accurately control the sampling amount and the set value is adjustable. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a clamp-type dual-station sample collector in position one.

[0010] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0011] Figure 3 for Figure 1 A partial sectional view;

[0012] Figure 4 This is a schematic diagram of a clamp-type dual-station sample collector in position two.

[0013] Figure 5 for Figure 4 A partial sectional view;

[0014] In the diagram: 1. Inlet, 2. Frame, 3. Moving cart, 4. Inlet I, 5. Inlet II, 6. Bag clamp, 61. Magnetic block, 7. Sample bag, 8. Pulley, 9. Rodless cylinder, 10. Weight sensor, 11. Proximity switch, 12. PLC control system; Detailed Implementation

[0015] A dual-station sample collector suitable for an automatic powder sampling device has the following structure as shown in the figure: a frame (2), a moving cart (3), an inlet (1), a bag clamp (6), a rodless cylinder (9), a weight sensor (10), and a proximity switch (11). The rodless cylinder (9) is fixed to the frame (2), and its slider is connected to the moving cart (3). The bottom of the moving cart (3) is equipped with pulleys (8) and rests on a slide rail fixed to the bottom of the frame (2). The top of the moving cart (3) is provided with a receiving port I (4) and a receiving port II (5). The rodless cylinder (9) can drive the moving cart (3) to move left and right. Both the receiving port I (4) and the receiving port II (5) can overlap with the inlet (1). When the moving cart (3) is driven to the point where the receiving port I (4) overlaps with the inlet (1), it is called position one. When the receiving port II (5) overlaps with the inlet (1), it is called position two. The receiving port I (4) and receiving port II (5) inside the mobile vehicle (3) are equipped with bag clamps (6) to fix the sample bag (7) so that it will not fall off. Two weight sensors (10) are provided at the bottom of the mobile vehicle (3), which correspond to receiving port I (4) and receiving port II (5) respectively.

[0016] The original automatic sampling equipment is connected to the inlet (1) via a pipe and connected to the PLC control system (12); when the automatic sampling equipment is working, the moving cart (3) is initially placed in position one, and the sample is drawn from the inlet (1) into the sample bag (7) fixed to the receiving port I (4) by the bag clamp (6). The sample inside the sample bag (7) will be detected by its corresponding weight sensor (10). When the weight of the sample reaches the set value of the PLC control system (12), the PLC control system (12) will activate the PLC control system (13). 12) An instruction will be issued to drive the rodless cylinder (9) to move the moving cart (3) to position two. After the proximity switch (11) is sensed, the signal is fed back to the PLC control system (12), indicating that the receiving port II (5) and the inlet (1) are in an overlapping state. At this time, the sample taken by the original automatic sampling equipment will flow into the sample bag (7) fixed at the receiving port II (5). When the weight of the sample reaches the set value, the PLC control system (12) issues an instruction to stop the sampling work of the original sampling equipment. At this time, the dual-station sample collector is in the state of waiting to take samples. When the sample bag (7) is replaced and the weight sensor (10) detects zero, the PLC control system (12) will issue an instruction to drive the rodless cylinder (9) to move the moving cart (3) to position one, and the original sampling equipment will automatically enter the next sampling cycle.

Claims

1. A clamp-bag type dual-station sample collector, characterized in that: It includes a frame (2), a moving cart (3), a feed port (1), a bag clamp (6), a rodless cylinder (9), a weight sensor (10), a proximity switch (11), and a PLC control system (12). The rodless cylinder (9) is fixed to the frame (2), and its slider is connected to the moving cart (3). The bottom of the moving cart (3) is equipped with pulleys (8) and rests on the slide rail fixed to the bottom of the frame (2). The top of the moving cart (3) is provided with a receiving port I (4) and a receiving port II (5). The rodless cylinder (9) can drive the moving cart (3) to move left and right. Both the receiving port I (4) and the receiving port II (5) can coincide with the feed port (1).

2. The bag-type dual-station sample collector according to claim 1, characterized in that: Both receiving port I (4) and receiving port II (5) are equipped with bag clips (6), and the bag clips (6) are equipped with magnetic blocks (61) to fix the mouth of the sample bag (7).

3. The bag-type dual-station sample collector according to claim 1, characterized in that: The bottom of the mobile vehicle (3) is equipped with a weight sensor (10). When the value reaches the set value of the PLC control system (12), the PLC control system (12) issues a command to automatically switch the mobile vehicle (3), and the set value is adjustable.

4. The bag-type dual-station sample collector according to claim 1, characterized in that: The mobile vehicle (3) is made of metal. The proximity switch (11) can sense the position of the mobile vehicle (3) after it has been moved left and right by the rodless cylinder (9).