Automatic test tube uncovering device

Abstract

The utility model discloses an automatic cover opening device for a test tube, which relates to the technical field of dismounting a plastic cover on the test tube from a cylindrical plastic shell and comprises a working table, a bracket fixedly arranged on the surface of the working table and a lifting cylinder fixedly arranged on the bottom surface of the working table, a horizontally-arranged suction cup B is fixedly arranged on the bottom wall of the top of the support and connected with a vacuum pump B. A plurality of suction heads B are fixedly arranged on the bottom surface of the suction cup B in the length direction of the suction cup B at intervals. A piston rod of the lifting air cylinder penetrates through the workbench upwards, a driving motor is fixedly arranged at the extending end, a rotating shaft extending rightwards is connected to an output shaft of the driving motor, and a plurality of clamping assemblies used for clamping and fixing a cylindrical plastic shell of a test tube are arranged on the rotating shaft in the length direction of the rotating shaft. The test tube cover opening device has the advantages that the working intensity of workers is relieved, and the test tube cover opening efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of removing plastic caps from cylindrical plastic shells on test tubes, and in particular to an automatic test tube cap opening device. Background Technology

[0002] The structure of a test tube used in a certain laboratory is as follows: Figures 1-2 As shown, its function is to hold chemical reagents. The structure of this test tube is as follows: Figures 1-2 As shown, it includes a cylindrical plastic shell 1 and a plastic cover 2. The cylindrical plastic shell 1 has an outer diameter of 8 cm and a height of 20 cm. The bottom of the cylindrical plastic shell 1 is closed, and an opening is provided at the top. The plastic cover 2 closes the opening of the cylindrical plastic shell 1. The cylindrical plastic shell 1 stores chemical reagents.

[0003] When staff need to use chemical reagents from multiple test tubes, they must remove the plastic caps 2 from the cylindrical plastic shell 1, then pour the chemical reagents from the cylindrical plastic shell 1 into a designated container, and then combine the chemical reagents from multiple test tubes into the container; then the staff will move the container to the designated workstation.

[0004] Because the plastic cap 2 of the test tube is firmly and tightly sealed to the cylindrical plastic outer shell 1, opening the cap directly by hand undoubtedly increases the workload of the staff. Therefore, the staff adopted methods such as... Figure 3 The opening mechanism shown is used to remove the plastic cover 2 from the cylindrical plastic shell 1. The opening mechanism includes a lifting cylinder 4 fixed on the worktable 3, a connecting plate 5 fixed on the piston rod end of the lifting cylinder 4, a suction cup A6 fixed at the bottom of the connecting plate 5, a suction head A7 fixed at the bottom of the suction cup A6, and a vacuum pump A8 fixed at the top of the suction cup A6. The working port of the vacuum pump A8 is connected to the inner cavity of the suction cup A6.

[0005] The specific operating method for staff to open multiple test tubes using this opening mechanism is as follows:

[0006] S1. The staff takes out a test tube to be opened, holds the cylindrical plastic shell 1 of the test tube with their hand, and then presses the plastic cap 2 of the test tube against the bottom surface of the pipette tip A7.

[0007] S2. The staff controls the vacuum pump A8 to start. The vacuum pump A8 evacuates the inner cavity of the suction cup A6 and the suction head A7. Under negative pressure, the plastic cap 2 of the test tube is adsorbed onto the suction head A7.

[0008] S3. The piston rod of the lifting cylinder 4 extends upward, and the piston rod drives the connecting plate 5 to move upward. The connecting plate 5 drives the suction cup A6 and the vacuum pump A8 to move upward synchronously. The suction cup A6 drives the suction head A7 to move upward. The suction head A7 removes the plastic cover 2 from the cylindrical plastic shell 1, thereby realizing the opening of the first test tube.

[0009] S4. After the lid is opened, the operator controls the vacuum pump A8 to shut off, and the suction head A7 no longer adheres to the plastic lid 2. The plastic lid 2 falls onto the workbench 3 under its own weight. Then, the operator pours the chemical reagents inside the cylindrical plastic shell 1 into the designated container.

[0010] S5. By repeating steps S1 to S4 multiple times, the staff can open multiple test tubes and pour the chemical reagents from the cylindrical plastic shell 1 into the container.

[0011] However, while this capping mechanism can open multiple test tubes, it still has the following technical drawbacks:

[0012] I. In step S4, after opening the lid, the staff still needs to manually pour the chemical reagents inside the cylindrical plastic shell 1 into the container, which undoubtedly increases the workload of the staff.

[0013] II. Only one test tube can be opened at a time, but there are as many as nine test tubes to be opened. If staff open them one by one, it will take a long time to open all nine test tubes, thus reducing the efficiency of opening the test tubes.

[0014] Therefore, there is an urgent need for a capping device that can reduce the workload of staff and greatly improve the efficiency of opening test tubes. Utility Model Content

[0015] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic test tube opening device that reduces the workload of workers and greatly improves the efficiency of opening test tubes.

[0016] The purpose of this utility model is achieved through the following technical solution: an automatic test tube opening device, which includes a workbench, a support fixed on the workbench surface, a lifting cylinder fixed on the bottom surface of the workbench, a horizontally arranged suction cup B fixed on the bottom wall of the top of the support, the suction cup B being connected to a vacuum pump B, and a plurality of suction heads B being fixed at intervals along the length direction on the bottom surface of the suction cup B, each suction head B being connected to the inner cavity of the suction cup B.

[0017] The piston rod of the lifting cylinder extends upward through the worktable, and a drive motor is fixed on the extended end. The output shaft of the drive motor is connected to a rotating shaft extending to the right. Multiple clamping components for clamping and fixing the cylindrical plastic shell of the test tube are arranged on the rotating shaft along its length direction. Each clamping component is located directly below each suction head B.

[0018] The clamping assembly on the left side includes an arched frame welded to the rotating shaft and a central hole opened on the top wall of the arched frame. Connecting frames located on the left and right sides of the central hole are fixed on the bottom surface of the arched frame. Support seats located directly below the central hole are welded to the two connecting frame supports. Positioning grooves are opened on the top surface of the support seats. Clamping cylinders are fixed on the left and right outer walls of the two connecting frames. The piston rods of the clamping cylinders pass through the connecting frames, and nylon clamping blocks are fixed on the extended ends. Arc-shaped grooves are opened on the inner end faces of the two nylon clamping blocks.

[0019] Two vacuum pumps B are fixed on the top surface of the suction cup B, and the working ports of the two vacuum pumps B are connected to the inner cavity of the suction cup B.

[0020] The bottom surface of the workbench is fixed with support legs that are supported on the ground.

[0021] The positioning groove inside the support base matches the outer contour of the bottom of the cylindrical plastic shell.

[0022] The two clamping cylinders are symmetrical about the support base.

[0023] The arc-shaped groove of the nylon clip is equal to the outer diameter of the cylindrical plastic shell.

[0024] The workbench also has a vertically arranged guide column that is located on the right side of the lifting cylinder. The top of the guide column is fixed with a bearing seat, and the right end of the rotating shaft is rotatably installed in the bearing seat.

[0025] The automatic lid opening device also includes a controller, which is electrically connected to the lifting cylinder and the drive motor via signal lines.

[0026] This invention has the following advantages: it reduces the workload of staff and greatly improves the efficiency of opening test tubes. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a test tube used in a laboratory.

[0028] Figure 2 for Figure 1 Main section diagram;

[0029] Figure 3 This is a schematic diagram of the existing lid-opening mechanism;

[0030] Figure 4This is a schematic diagram showing the plastic cap of the test tube pressed against the bottom surface of pipette tip A.

[0031] Figure 5 A schematic diagram illustrating how to open the cap of the first test tube;

[0032] Figure 6 This is a schematic diagram of the structure of this utility model;

[0033] Figure 7 for Figure 6 Main section diagram;

[0034] Figure 8 This is a schematic diagram of the clamping assembly on the left.

[0035] Figure 9 This is an isometric view of the support base;

[0036] Figure 10 Axonometric view of the nylon clip;

[0037] Figure 11 A schematic diagram illustrating the positioning of the test tube;

[0038] Figure 12 A schematic diagram illustrating how to clamp and fix the test tube;

[0039] Figure 13 This is a schematic diagram showing the plastic caps of three test tubes resting against the bottom surface of three pipette tips B.

[0040] Figure 14 A schematic diagram illustrating how to remove the plastic cap from the cylindrical plastic casing;

[0041] Figure 15 A diagram illustrating a worker placing a container on a workbench surface;

[0042] Figure 16 A schematic diagram showing a cylindrical plastic shell rotated 180°;

[0043] In the picture:

[0044] 1-Cylindrical plastic outer shell, 2-Plastic cover, 3-Workbench, 4-Lifting cylinder, 5-Connecting plate, 6-Suction cup A, 7-Suction head A, 8-Vacuum pump A;

[0045] 9-Bracket, 10-Lifting cylinder, 11-Suction cup B, 12-Vacuum pump B, 13-Suction head B, 14-Drive motor, 15-Rotating shaft, 16-Clamping assembly, 17-Arch frame, 18-Connecting frame, 19-Support base, 20-Positioning groove, 21-Clamping cylinder, 22-Nylon clamping block, 23-Guide column, 24-Bearing seat, 25-Vessel. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:

[0047] like Figures 6-10 As shown, an automatic test tube opening device includes a workbench 3, a support 9 fixed on the surface of the workbench 3, and a lifting cylinder 10 fixed on the bottom surface of the workbench 3. Support legs supporting the ground are fixed on the bottom surface of the workbench 3. A horizontally arranged suction cup B11 is fixed on the bottom wall of the top of the support 9. The suction cup B11 is connected to a vacuum pump B12. Multiple suction heads B13 are fixed at intervals along the length of the bottom surface of the suction cup B11, and each suction head B13 communicates with the inner cavity of the suction cup B11. Two vacuum pumps B12 are fixed on the top surface of the suction cup B11, and the working ports of both vacuum pumps B12 communicate with the inner cavity of the suction cup B11.

[0048] The piston rod of the lifting cylinder 10 extends upward through the workbench 3, and a drive motor 14 is fixed on the extended end. The output shaft of the drive motor 14 is connected to a rotating shaft 15 extending to the right. Multiple clamping components 16 for clamping and fixing the cylindrical plastic shell 1 of the test tube are arranged on the rotating shaft 15 along its length direction. Each clamping component 16 is located directly below each suction head B13.

[0049] The clamping assembly 16 located on the left side includes an arched frame 17 welded to the rotating shaft 15 and a central hole opened on the top wall of the arched frame 17. Connecting frames 18 located on the left and right sides of the central hole are fixed on the bottom surface of the arched frame 17. Support seats 19 located directly below the central hole are welded to the two connecting frames 18. A positioning groove 20 is opened on the top surface of the support seat 19. The positioning groove 20 in the support seat 19 matches the outer contour of the bottom of the cylindrical plastic shell 1. Clamping cylinders 21 are fixed on the left and right outer walls of the two connecting frames 18. The two clamping cylinders 21 are symmetrical about the support seat 19. The piston rod of the clamping cylinder 21 passes through the connecting frame 18, and a nylon clamping block 22 is fixed on the extended end. An arc-shaped groove is opened on the inner end face of the two nylon clamping blocks 22. The arc-shaped groove of the nylon clamping block 22 is equal to the outer diameter of the cylindrical plastic shell 1.

[0050] The workbench 3 also has a vertically arranged guide column 23 slidably passing through it and located on the right side of the lifting cylinder 10. A bearing seat 24 is fixed to the top of the guide column 23, and the right end of the rotating shaft 15 is rotatably installed in the bearing seat 24. The automatic lid opening device also includes a controller, which is electrically connected to the lifting cylinder 10 and the drive motor 14 via a signal line. The operator can control the extension or retraction of the piston rod of the lifting cylinder 10 through the controller, and at the same time, can also control the start or stop of the drive motor 14, which facilitates the operation of the operator and has the characteristics of high automation.

[0051] The working process of this utility model is as follows:

[0052] S1. The specific steps for clamping and fixing the first test tube to be opened are as follows:

[0053] S11, The staff took out a... Figures 1-2 The test tube containing chemical reagents is shown. The operator inserts the cylindrical plastic outer shell 1 of the test tube from top to bottom through the central hole of the clamping assembly 16 on the left side, and then embeds it into the positioning groove 20 of the support base 19. Because the positioning groove 20 in the support base 19 matches the outer contour of the bottom of the cylindrical plastic outer shell 1, the test tube is positioned. Figure 11 As shown, at this time, the cylindrical plastic outer shell 1 of the test tube is just between the two nylon clamps 22, and the plastic cap 2 of the test tube is just below the pipette tip B13.

[0054] S12. The operator controls the piston rods of the two clamping cylinders 21 on the left side of the clamping assembly 16 to extend. The piston rods drive the nylon clamping blocks 22 to move towards the cylindrical plastic shell 1. When the piston rods of the two clamping cylinders 21 are fully extended, the cylindrical plastic shell 1 is clamped and fixed between the two nylon clamping blocks 22, thus achieving the clamping and fixing of the test tube. Figure 12 As shown;

[0055] S2. The operator repeats step S1 twice to clamp and fix the other two test tubes in the two clamping components 16 respectively.

[0056] S3. The operator controls the piston rod of the lifting cylinder 10 to extend upwards. The piston rod drives the drive motor 14 to move upwards. The drive motor 14 drives the rotating shaft 15 and the three clamping components 16 to move upwards synchronously. The clamping components 16 drive the test tubes clamped and fixed inside them to move upwards synchronously. The plastic caps 2 of the three test tubes move towards the three pipette tips B13 respectively. When the piston rod of the lifting cylinder 10 is fully extended, the plastic caps 2 of the three test tubes abut against the bottom surface of the three pipette tips B13 respectively. Figure 13 As shown;

[0057] S4. Control vacuum pump B12 to start. Vacuum pump B12 evacuates the inner cavity of suction cup B11 and the inner cavity of the three suction heads B13. Under negative pressure, the plastic caps 2 of the three test tubes are respectively adsorbed and fixed on the three suction heads B13.

[0058] S5. The piston rod of the lifting cylinder 10 retracts downwards, causing the drive motor 14 to move downwards. The drive motor 14 then drives the rotating shaft 15 and the three clamping assemblies 16 to move downwards synchronously. The clamping assemblies 16 then drive the cylindrical plastic shell 1 to move downwards synchronously, gradually detaching the cylindrical plastic shell 1 from the plastic cover 2. When the piston rod of the lifting cylinder 10 retracts to the set distance, the controller controls the lifting cylinder 10 to close, thus finally removing the plastic cover 2 from the cylindrical plastic shell 1. Figure 14 As shown;

[0059] As can be seen from steps S1 to S5, this capping device first clamps and fixes the cylindrical plastic shells 1 of the three test tubes using three clamping components 16, and then uses the suction head B13 to adsorb and fix the plastic caps 2 of the test tubes. Finally, the piston rod of the lifting cylinder 10 is controlled to retract downwards, thereby removing the cylindrical plastic shells 1 from the plastic caps 2, thus completing the simultaneous opening of the three test tubes. Therefore, this capping device can complete the simultaneous opening of three test tubes in one operation, compared to... Figures 3-5 The opening mechanism shown eliminates the need to open test tubes one by one, thus enabling the opening of multiple test tubes in a short time and greatly improving the efficiency of opening test tubes.

[0060] S6. The worker places a container 25 on the surface of workbench 3, such as... Figure 15 As shown, ensure that the container 25 is directly below the three clamping components 16; then, the operator starts the drive motor 14, which drives the rotating shaft 15 to rotate, which in turn drives the three clamping components 16 to rotate synchronously. The clamping components 16 then drive the cylindrical plastic shell 1 to rotate synchronously. During rotation, the chemical reagents inside the cylindrical plastic shell 1 are gradually poured into the container 25; after the cylindrical plastic shell 1 has rotated 180°, as shown... Figure 16 As shown, all the chemical reagents inside the three cylindrical plastic shells 1 can be poured into the container 25;

[0061] In step S6, after the test tube is opened, the drive motor 14 is started, thereby pouring all the chemical reagents from the three cylindrical plastic shells 1 into the container 25. Therefore, this opening device is superior to... Figures 3-5 The opening mechanism shown eliminates the need for staff to manually pour the chemical reagents from the cylindrical plastic shell 1 into the container 25, thus greatly reducing the workload of the staff.

[0062] S7. After all the chemical reagents inside the three cylindrical plastic shells 1 have been poured into the container 25, the staff removes the container 25 from the workbench 3.

[0063] S8. The operator turns off the vacuum pump B12. At this time, the plastic cover 2 adsorbed on the suction head B13 falls off. Then, the piston rods of the two clamping cylinders 21 of the control clamping assembly 16 retract, and the piston rods drive the nylon clamping block 22 to reset. After resetting, the operator removes the cylindrical plastic shell 1.

[0064] S9. By repeating steps S1 to S8 multiple times, the staff can open multiple test tubes and pour the chemical reagents from the cylindrical plastic shell 1 into the container 25.

[0065] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic test tube opening device, characterized in that: It includes a workbench (3), a support (9) fixed on the workbench (3) surface, and a lifting cylinder (10) fixed on the bottom surface of the workbench (3). A horizontally arranged suction cup B (11) is fixed on the bottom wall of the top of the support (9). The suction cup B (11) is connected to the vacuum pump B (12). Multiple suction heads B (13) are fixed at intervals along the length direction on the bottom surface of the suction cup B (11). Each suction head B (13) is connected to the inner cavity of the suction cup B (11). The piston rod of the lifting cylinder (10) extends upward through the workbench (3), and a drive motor (14) is fixed on the extended end. The output shaft of the drive motor (14) is connected to a rotating shaft (15) extending to the right. Multiple clamping components (16) for clamping and fixing the cylindrical plastic shell (1) of the test tube are arranged on the rotating shaft (15) along its length direction. Each clamping component (16) is located directly below each suction head B (13). The clamping assembly (16) located on the left side includes an arched frame (17) welded to the rotating shaft (15) and a central hole opened on the top wall of the arched frame (17). Connecting frames (18) located on the left and right sides of the central hole are fixed on the bottom surface of the arched frame (17). Support seats (19) located directly below the central hole are welded to the supports of the two connecting frames (18). A positioning groove (20) is opened on the top surface of the support seat (19). Clamping cylinders (21) are fixed on the left and right outer walls of the two connecting frames (18). The piston rod of the clamping cylinder (21) passes through the connecting frame (18), and a nylon clamping block (22) is fixed on the extended end. An arc groove is opened on the inner end face of the two nylon clamping blocks (22).

2. The automatic test tube opening device according to claim 1, characterized in that: Two vacuum pumps B (12) are fixed on the top surface of the suction cup B (11), and the working ports of the two vacuum pumps B (12) are connected to the inner cavity of the suction cup B (11).

3. The automatic test tube opening device according to claim 1, characterized in that: The bottom surface of the workbench (3) is fixed with legs that support the ground.

4. The automatic test tube opening device according to claim 1, characterized in that: The positioning groove (20) in the support base (19) matches the outer contour of the bottom of the cylindrical plastic shell (1).

5. The automatic test tube opening device according to claim 1, characterized in that: The two clamping cylinders (21) are symmetrical about the support base (19).

6. The automatic test tube opening device according to claim 1, characterized in that: The arc-shaped groove of the nylon clip (22) is equal to the outer diameter of the cylindrical plastic shell (1).

7. The automatic test tube opening device according to claim 1, characterized in that: The workbench (3) also has a guide column (23) that is vertically arranged and located on the right side of the lifting cylinder (10) sliding through it. The top of the guide column (23) is fixed with a bearing seat (24), and the right end of the rotating shaft (15) is rotatably installed in the bearing seat (24).

8. The automatic test tube opening device according to claim 1, characterized in that: The automatic lid opening device also includes a controller, which is electrically connected to the lifting cylinder (10) and the drive motor (14) via a signal line.

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