Automatic batch separating and taking constant volume device

Abstract

The utility model relates to the technical field of separation and constant volume, in particular to an automatic batch separation and constant volume device which comprises a support, a conveying belt and a test tube rack tray, the support is of a vertical frame-shaped structure, and the conveying belt penetrates through the middle of the support and is used for bearing the test tube rack tray. The test tube rack tray is provided with a separate test tube rack groove and a constant-volume test tube rack groove, the separate test tube rack groove and the constant-volume test tube rack groove are respectively used for clamping a separate test tube rack and a constant-volume test tube rack, and the top of the bracket is provided with a three-axis driving device; and the three-axis driving device is used for driving the extracting device to do X-axis, Y-axis and Z-axis translational motion which is perpendicular to each other. According to the utility model, the rapid, continuous and batch automatic operation of separating and metering the volume of the test tube can be realized, the working efficiency is obviously improved, errors caused by improper manual operation are avoided, and the accuracy and the reliability of an experimental result are improved.

Description

Technical Field

[0001] This utility model relates to the field of dispensing and volume determination technology, specifically an automated batch dispensing and volume determination device. Background Technology

[0002] In the field of laboratory automation, especially in scientific research and production processes in biology, chemistry, and medicine, the dispensing and volume adjustment of test tubes are indispensable steps. Currently, these operations mostly rely on manual labor, which is not only inefficient but also prone to introducing human error, affecting the accuracy and reliability of experimental results.

[0003] Specifically, traditional test tube dispensing and volume adjustment requires laboratory personnel to pick up each test tube individually, use a pipette or pipette to dispense and add liquid, and then manually adjust to the required volume. This process is not only time-consuming and labor-intensive, but also makes it difficult to ensure the accuracy and consistency of the liquid in each test tube. In addition, manual operation is prone to cross-contamination, which can adversely affect experimental results.

[0004] To address these shortcomings in existing technologies, there is an urgent need for a device that can automate, efficiently, and accurately perform test tube dispensing and volume adjustment. This device should reduce manual intervention, improve operational efficiency, and ensure the accuracy and consistency of the liquid in each test tube, thereby meeting the high requirements for accuracy and reliability of experimental results in scientific research and production. Utility Model Content

[0005] The purpose of this invention is to provide an automated batch dispensing and volume-regulating device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automated batch dispensing and volume-fixing device includes a support, a conveyor belt, and a test tube rack tray. The support is a vertical frame structure. The conveyor belt passes through the middle of the support and supports the test tube rack tray. The test tube rack tray has a dispensing slot and a volume-fixing slot, which are used to engage the dispensing rack and the volume-fixing rack, respectively. A three-axis drive device is mounted on the top of the support. The three-axis drive device drives the dispensing device to perform mutually perpendicular X, Y, and Z axis translational movements. The sampling device includes a base plate, on the upper side of which an electric push rod is fixedly installed, and on the lower side of which one or more sampling syringes are fixedly installed. Push rods slidably installed inside all sampling syringes are connected to a connecting plate, which is connected to the telescopic rod of the electric push rod. A positioning cylinder is installed on the rear side of the support, and the telescopic rod of the positioning cylinder is horizontally set and its extension direction is perpendicular to the movement direction of the conveyor belt. An L-shaped positioning block is fixedly installed at the end of the telescopic rod of the positioning cylinder, and the L-shaped positioning block engages with the two corners on the rear side of the test tube rack tray.

[0008] Furthermore, the three-axis drive device includes an X-axis drive motor, a Y-axis drive motor, and a Z-axis drive motor. An X-axis guide rod is horizontally mounted on the top of the bracket, and an X-axis translation base is slidably mounted on the X-axis guide rod. The X-axis drive motor drives the X-axis translation base to translate left and right along the X-axis via a lead screw drive. A Y-axis guide rod is mounted on the bottom of the X-axis translation base, and a Y-axis translation base is slidably mounted on the Y-axis guide rod. The Y-axis drive motor drives the Y-axis translation base to translate back and forth along the Y-axis via a lead screw drive. A vertically extending plate is fixedly mounted on the Y-axis translation base, and a Z-axis guide rod is mounted on the plate. A base plate is slidably mounted on the Z-axis guide rod, and the Z-axis drive motor drives the Y-axis base plate to translate up and down along the Z-axis via a lead screw drive.

[0009] Furthermore, a cleaning water tank and a wastewater recycling tank are provided on the right side of the bracket. The top of the cleaning water tank is connected to a water inlet pipe and the bottom is connected to a drain pipe. Solenoid valves are provided at the ends of the water inlet pipe and the drain pipe near the cleaning water tank.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model can realize rapid, continuous, and batch automated operation of test tube dispensing and volume determination, which significantly improves work efficiency, avoids errors caused by improper human operation, and improves the accuracy and reliability of experimental results.

[0012] 2. The extraction device in this utility model is cleaned after each operation to avoid cross-contamination between different test tubes. Attached Figure Description

[0013] Figure 1This is a schematic diagram of an automated batch dispensing and volume-determining device;

[0014] Figure 2 This is a schematic diagram of the test tube rack tray structure;

[0015] Figure 3 This is a schematic diagram of the support structure;

[0016] Figure 4 for Figure 3 A magnified view of a section at point K;

[0017] Figure 5 This is a schematic diagram of the structure of a three-axis drive device;

[0018] Figure 6 This is a schematic diagram of the extraction device.

[0019] In the diagram: 1. Test tube rack tray; 2. Dispensing test tube rack slot; 3. Dispensing test tube rack; 4. Volumetric test tube rack slot; 5. Volumetric test tube rack; 6. Conveyor belt; 7. Support frame; 8. Wastewater recovery tank; 9. Cleaning water tank; 10. Inlet pipe; 11. Drain pipe; 12. Base plate; 13. Sampling syringe; 14. Connecting plate; 15. Electric push rod; 16. Three-axis drive device; 17. X-axis drive motor; 18. X-axis translation base; 19. Y-axis drive motor; 20. Y-axis translation base; 21. Vertical plate; 22. Z-axis drive motor; 23. Positioning cylinder; 24. L-shaped positioning block; 25. Extraction device. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figures 1-6An automated batch dispensing and volume-fixing device includes a support 7, a conveyor belt 6, and a test tube rack tray 1. The support 7 is a vertical frame structure. The conveyor belt 6 passes through the middle of the support 7 and supports the test tube rack tray 1. The test tube rack tray 1 is provided with dispensing test tube rack slots 2 and volume-fixing test tube rack slots 4, which are used to engage dispensing test tube racks 3 and volume-fixing test tube racks 5, respectively. A three-axis drive device 16 is installed on the top of the support 7. The three-axis drive device 16 is used to drive the extraction device 25 to perform mutually perpendicular X, Y, and Z axis translational movements. The extraction device 25 includes a bottom... An electric push rod 15 is fixedly installed on the upper side plate of the base plate 12, and one or more sampling syringes 13 are fixedly installed on the lower side plate of the base plate 12. The push rods slidably installed in all sampling syringes 13 are connected to the connecting plate 14. The connecting plate 14 is connected to the telescopic rod of the electric push rod 15. A positioning cylinder 23 is installed on the rear side of the bracket 7. The telescopic rod of the positioning cylinder 23 is set horizontally and its telescopic direction is perpendicular to the movement direction of the conveyor belt 6. An L-shaped positioning block 24 is fixedly installed at the end of the telescopic rod of the positioning cylinder 23. The L-shaped positioning block 24 is engaged with the two corners of the rear side of the test tube rack tray 1.

[0022] The three-axis drive device 16 includes an X-axis drive motor 17, a Y-axis drive motor 19, and a Z-axis drive motor 22. An X-axis guide rod is horizontally mounted on the top of the bracket 7. An X-axis translation base 18 is slidably mounted on the X-axis guide rod. The X-axis drive motor 17 drives the X-axis translation base 18 to translate left and right along the X-axis via a lead screw. A Y-axis guide rod is mounted on the bottom of the X-axis translation base 18. A Y-axis translation base 20 is slidably mounted on the Y-axis guide rod. The Y-axis drive motor 19 drives the Y-axis translation base 20 to translate back and forth along the Y-axis via a lead screw. A vertically extending upright plate 21 is fixedly mounted on the Y-axis translation base 20. A Z-axis guide rod is mounted on the upright plate 21. A base plate 12 is slidably mounted on the Z-axis guide rod. The Z-axis drive motor 22 drives the Y-axis base plate 12 to translate up and down along the Z-axis via a lead screw.

[0023] Working principle of this embodiment:

[0024] The experimenters inserted the dispensing test tube rack 3 and the volume-fixing test tube rack 5, each containing test tubes, into the dispensing test tube rack slot 2 and the volume-fixing test tube rack slot 4 on the test tube rack tray 1, respectively. The test tube rack tray 1 was placed on the conveyor belt 6, which transported it to the working area of ​​the device. When the test tube rack tray 1 reached the designated position, the positioning cylinder 23 was activated, and its telescopic rod extended, causing the L-shaped positioning block 24 to engage with the two corners on the rear side of the test tube rack tray 1, achieving precise positioning of the test tube rack tray 1.

[0025] The three-axis drive unit 16 is activated. The X-axis drive motor 17 drives the X-axis translation base 18 to move left and right along the X-axis via a lead screw, moving the extraction device 25 above the dispensing test tube rack 3. The Y-axis drive motor 19 drives the Y-axis translation base 20 to move back and forth along the Y-axis via a lead screw, further adjusting the position of the extraction device 25 so that it is aligned with the test tube to be dispensed. The Z-axis drive motor 22 drives the base plate 12 to move up and down along the Z-axis via a lead screw, inserting the sampling syringe 13 into the test tube. The electric push rod 15 is activated, pushing the push rod inside the sampling syringe 13 through the connecting plate 14, drawing the liquid from the test tube into the sampling syringe 13.

[0026] Driven by the triaxial drive device 16, the extraction device 25 moves above the volumetric test tube rack 5 and repeats the Z-axis translation steps described above to inject the liquid in the sampling syringe 13 into the designated test tube. By precisely controlling the extension and retraction of the electric push rod 15, precise volumetric determination of the liquid can be achieved.

[0027] This embodiment, in conjunction with a PLC controller, enables rapid, continuous, and batch automated operation of test tube dispensing and volume determination, significantly improving work efficiency. It avoids errors introduced by improper human operation, thus improving the accuracy and reliability of experimental results.

[0028] Example 2: Please refer to Figure 1 and 3 An automated batch dispensing and volume-fixing device, which differs from Embodiment 1, is provided with a cleaning water tank 9 and a wastewater recycling tank 8 on the right side of the support 7. The top of the cleaning water tank 9 is connected to an inlet pipe 10 and the bottom is connected to a drain pipe 11. Solenoid valves are provided at the end of the inlet pipe 10 and the drain pipe 11 near the cleaning water tank 9.

[0029] After liquid separation and volume adjustment are completed in this embodiment, the extraction device 25 moves above the cleaning water tank 9. The solenoid valve of the water inlet pipe 10 is opened, injecting pure water or other cleaning solution into the cleaning water tank 9. The extraction device 25 descends, immersing the sampling syringe 13 in the cleaning solution. The sampling syringe 13 is cleaned by the reciprocating motion of the electric push rod 15. After cleaning, the solenoid valve of the drain pipe 11 is opened to drain the water from the cleaning water tank 9, preventing the cleaning solution from being reused multiple times and causing pollution. The electric push rod 15 pushes the liquid in the sampling syringe 13 only to the wastewater recovery tank 8, avoiding contamination of the cleaning solution during the cleaning process.

[0030] In this embodiment, the extraction device 25 is cleaned after each operation to avoid cross-contamination between different test tubes.

Claims

1. An automated batch dispensing and volume-determining device, comprising a support (7), a conveyor belt (6), and a test tube rack tray (1), characterized in that: The support (7) is a vertical frame structure. The conveyor belt (6) passes through the middle of the support (7) and is used to support the test tube rack tray (1). The test tube rack tray (1) is provided with a dispensing test tube rack slot (2) and a volume-fixing test tube rack slot (4). The dispensing test tube rack slot (2) and the volume-fixing test tube rack slot (4) are respectively used to engage the dispensing test tube rack (3) and the volume-fixing test tube rack (5). A three-axis drive device (16) is installed on the top of the support (7). The three-axis drive device (16) is used to drive the extraction device (25) to perform mutually perpendicular X, Y, and Z three-axis translational movements. The extraction device (25) includes a base plate (12). An electric push rod (15) is fixedly installed on the upper side plate of the base plate (12), and one or more sampling syringes (13) are fixedly installed on the lower side plate of the base plate (12). The push rods that are slidably installed in all sampling syringes (13) are connected to the connecting plate (14). The connecting plate (14) is connected to the telescopic rod of the electric push rod (15). A positioning cylinder (23) is installed on the rear side of the bracket (7). The telescopic rod of the positioning cylinder (23) is set horizontally and its telescopic direction is perpendicular to the movement direction of the conveyor belt (6). An L-shaped positioning block (24) is fixedly installed at the end of the telescopic rod of the positioning cylinder (23). The L-shaped positioning block (24) is engaged with the two corners on the rear side of the test tube rack tray (1).

2. The automated batch dispensing and volume-regulating device according to claim 1, characterized in that: The three-axis drive device (16) includes an X-axis drive motor (17), a Y-axis drive motor (19), and a Z-axis drive motor (22). An X-axis guide rod is horizontally mounted on the top of the bracket (7), and an X-axis translation base (18) is slidably mounted on the X-axis guide rod. The X-axis drive motor (17) drives the X-axis translation base (18) to translate left and right along the X-axis through a lead screw drive. A Y-axis guide rod is mounted on the bottom of the X-axis translation base (18), and the Y-axis guide rod slides upwards. A Y-axis translation base (20) is mounted on the Y-axis. The Y-axis drive motor (19) drives the Y-axis translation base (20) to move back and forth along the Y-axis via a lead screw. A vertically extending plate (21) is fixedly mounted on the Y-axis translation base (20). A Z-axis guide rod is mounted on the plate (21). The base plate (12) is slidably mounted on the Z-axis guide rod. The Z-axis drive motor (22) drives the Y-axis base plate (12) to move up and down along the Z-axis via a lead screw.

3. The automated batch dispensing and volume-regulating device according to claim 1, characterized in that: A cleaning water tank (9) and a wastewater recycling tank (8) are provided on the right side of the bracket (7). The top of the cleaning water tank (9) is connected to a water inlet pipe (10) and the bottom is connected to a drain pipe (11). Solenoid valves are provided at the end of the water inlet pipe (10) and the drain pipe (11) near the cleaning water tank (9).

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