A fully automatic medicine dispensing device

Abstract

The invention discloses a fully automatic dispensing instrument, comprising a liquid transfer device, a control system, a manipulator, a mechanical arm, a mother liquid tank, a liquid transfer platform, an analytical balance, a quantitative cup, a pure water quantitative pump and a pure water tank; the liquid transfer device comprises a liquid transfer device body, a switch and a plurality of pipettes; the inlet of each pipette is connected with the outlet of the switch, wherein the inlet of the switch is connected with the outlet of the liquid transfer device body, the manipulator is connected with a button on the top of the liquid transfer device body, the mechanical arm is connected with the manipulator, the mother liquid tank is located on the liquid transfer platform, the quantitative cup is located on the analytical balance, and the outlet of the pure water tank is connected with the quantitative cup via the pure water quantitative pump; the control system is connected with the mechanical arm, the manipulator, the analytical balance and the pure water quantitative pump, and the dispensing instrument can realize automatic dispensing of solutions with high precision and high safety.

Description

Technical Field

[0001] The invention belongs to the field of chemical preparation and relates to a full-automatic medicine dispensing instrument. Background Art

[0002] As we all know, chemical experiments are inseparable from medicines. In daily experiments, we often use chemical solutions of specific concentrations. Chemicals have always been prepared using traditional manual methods. Generally, it is necessary to calculate based on the concentration of the mother solution, the concentration and volume of the required solution, and then select a pipette or pipette gun and gun tip of appropriate capacity, extract a certain volume of mother solution and dilute it to a fixed volume in a volumetric flask. When the concave liquid surface of the solution is level with the scale line, the solution is prepared. After fully mixing, it can be poured out for use.

[0003] The manual preparation method is not only cumbersome to operate and increase the workload of the experimenters, but the accuracy of the concentration is limited by the operating level of the staff and often has certain errors. If water is accidentally added beyond the scale line during volume determination, it is necessary to pour it out and re-prepare, which greatly increases the workload and even delays the experiment. The volumetric flask volume determination method often prepares more solutions, resulting in a waste of water and reagents. When used multiple times, the solution is stored in the container for a long time, and some solvents will be adsorbed on the surface of the container and even precipitate, causing the solution concentration to change, resulting in errors. The preparation of some toxic and highly volatile reagents also poses a great health hazard to experimenters and is less safe. Summary of the invention

[0004] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a fully automatic dispensing device which can achieve automatic dispensing of solutions with high accuracy and high safety.

[0005] To achieve the above-mentioned purpose, the fully automatic dispensing instrument of the present invention comprises a liquid transfer device, a control system, a manipulator, a mechanical arm, a mother liquid tank, a liquid transfer platform, an analytical balance, a quantitative cup, a pure water quantitative pump and a pure water tank; the liquid transfer device comprises a liquid transfer device body, a switch and a plurality of pipettes;

[0006] The inlet of each pipette is connected to the outlet of the switch, wherein the inlet of the switch is connected to the outlet of the pipetting device body, the manipulator is connected to the button on the top of the pipetting device body, the manipulator arm is connected to the manipulator, the mother liquid tank is located on the pipetting platform, the quantitative cup is located on the analytical balance, and the outlet of the pure water tank is connected to the quantitative cup via a pure water quantitative pump;

[0007] The control system is connected with the mechanical arm, the mechanical hand, the analytical balance and the pure water quantitative pump.

[0008] The control system is connected with a touch screen.

[0009] It also includes a liquid level detection system; the liquid level detection system is directly facing each pipette, and the control system is connected with the liquid level detection system.

[0010] The number of pipettes is three.

[0011] The specifications of the three pipettes are 0-0.1mL, 0-1mL and 0-10mL respectively.

[0012] It also includes a pure water bottle and a pure water platform; the pure water bottle is located on the pure water platform.

[0013] During operation, the control system controls the robot arm to move the pipetting device body.

[0014] During operation, the control system controls the manipulator to press a button to suck or squeeze the liquid into the pipette through the main body of the pipette.

[0015] When preparing the solution, the following relationship applies:

[0016]

[0017] M 水 =ρ·VM 母 (2)

[0018]

[0019] Among them, V 水 is the volume of pure water required, M 水 is the weight of pure water required, ρ is the density of the prepared solution at room temperature, V is the volume of the prepared solution, M 母 is the mass of the mother liquor required, V 母 is the volume of the mother solution required.

[0020] The present invention has the following beneficial effects:

[0021] During the specific operation of the fully automatic dispensing instrument described in the present invention, the control system controls the mechanical arm to move the pipetting device body, and the control system controls the mechanical arm to press the button, so that the liquid is sucked into or squeezed out of the pipette through the pipetting device body, thereby sending the mother liquid and pure water into the quantitative cup, thereby realizing automatic dispensing of the solution with high accuracy and safety, basically requiring no manual maintenance, being convenient and fast, and ready for use, with the deviation being controllable within 3%. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the main body 1-1 of the liquid transfer device in the present invention.

[0024] Among them, 1 is a pipetting device, 2 is a manipulator, 3 is a robotic arm, 4 is a mother liquid tank, 5 is a pipetting platform, 6 is a pure water bottle, 7 is a pure water platform, 8 is an analytical balance, 9 is a quantitative cup, 10 is a pure water quantitative pump, 11 is a pure water tank, 1-1 is the main body of the pipetting device, 1-2 is a pipette, 1-3 is a switch, and 1-4 is a button. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only an embodiment of a part of the present invention, not all embodiments, and is not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concepts disclosed in the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0026] The accompanying drawings show schematic diagrams of structures according to embodiments disclosed in the present invention. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0027] refer to Figure 1 and Figure 2 The fully automatic dispensing instrument of the present invention comprises a liquid transfer device 1, a manipulator 2, a mechanical arm 3, a mother liquid tank 4, a liquid transfer platform 5, a pure water bottle 6, a pure water platform 7, an analytical balance 8, a quantitative cup 9, a pure water quantitative pump 10 and a pure water tank 11;

[0028] The pipetting device 1 includes a pipetting device body 1-1, a switch 1-3 and three pipettes 1-2. The inlets of the three pipettes 1-2 are all connected to the outlet of the switch 1-3, wherein the inlet of the switch 1-3 is connected to the outlet of the pipetting device body 1-1. The specifications of the three pipettes 1-2 are 0-0.1mL, 0-1mL and 0-10mL respectively. The switch 1-3 automatically switches to meet the pipetting volume requirements of most mother solutions. 2 is connected to the button 1-4 on the top of the pipetting device body 1-1, and the button 1-4 is pressed by the manipulator 2 to extract or squeeze the liquid out of the pipette 1-2. The mechanical arm 3 is connected to the manipulator 2, and the manipulator 2 is moved by the mechanical arm 3 to drive the pipetting device body 1-1 to move. The mother liquid tank 4 is located on the pipetting platform 5, the pure water bottle 6 is located on the pure water platform 7, the quantitative cup 9 is located on the analytical balance 8, and the outlet of the pure water tank 11 is connected to the quantitative cup 9 through the pure water quantitative pump 10.

[0029] The liquid level detection system is directly opposite to each pipette 1 - 2 , and the control system is connected with the liquid level detection system, the mechanical arm 3 , the analytical balance 8 and the pure water quantitative pump 10 .

[0030] During operation, the control system controls the movement of the robotic arm 3, and drives the pipetting device body 1-1 to move through the robotic arm 2, so that the pipette 1-2 is located above the quantitative cup 9, and then presses the button 1-4 to add the mother liquid in the pipette 1-2 into the quantitative cup 9. The control system weighs the mass of the mother liquid through the analytical balance 8, and then calculates the required amount of pure water, and then controls the pure water metering pump 10 according to the required amount of pure water, and passes the pure water in the pure water tank 11 into the quantitative cup 9.

[0031] The control system is connected with a touch screen, and the user inputs the type of mother solution, the concentration of the mother solution, the concentration of the prepared solution and the volume of the prepared solution into the control system through the touch screen.

[0032] The liquid level detection system uses ultrasonic or optical principles to ensure accuracy. Before extracting the mother liquid, the pipetting device body 1-1 first extracts the corresponding volume of high-purity water, on the one hand to clean the pipette 1-2, and on the other hand to correct the amplitude of the manipulator 2 pressing the button 1-4 through the liquid level detection system and the control system, so that the extracted volume is consistent with the volume calculated by the control system, and at the same time has the following relationship:

[0033]

[0034] M 水 =ρ·VM 母 (2)

[0035]

[0036] Among them, V 水is the volume of pure water required, M 水 is the weight of pure water required, ρ is the density of the prepared solution at room temperature, V is the volume of the prepared solution, M 母 is the mass of the mother liquor required, V 母 is the volume of the mother solution required.

[0037] The working process of the present invention is:

[0038] The user inputs the type of mother liquid, the concentration of the mother liquid, the concentration of the prepared solution and the volume of the prepared solution into the control system through the touch screen, and the control system calculates the required volume of the mother liquid based on this. The control system controls the switch 1-3 to switch to the pipette 1-2 of the corresponding specification, and then moves the pipette body 1-1 to the top of the pure water platform 7 through the mechanical arm 3, and at the same time makes the pipette 1-2 extend into the pure water bottle 6, and then presses the button 1-4, and uses the pipette body 1-1 to extract a preset volume of pure water into the pipette 1-2, and at the same time uses the liquid level detection system to detect the liquid level in the pipette 1-2, and calculates the current liquid volume in the pipette 1-2 according to the detected liquid level, and then corrects the pressing amplitude of the manipulator 2 according to the deviation between the current liquid volume in the pipette 1-2 and the preset volume, so that the liquid volume in the pipette 1-2 is consistent with the preset volume, and then presses the button 1-4 to empty the pure water in the pipette 1-2;

[0039] The control system drives the pipetting device body 1-1 to the top of the mother liquid tank 4 through the mechanical arm 3, and makes the pipette 1-2 extend into the mother liquid tank 4, and then presses the button 1-4 through the mechanical hand 2 to extract the required volume of mother liquid into the pipette 1-2, and then moves the pipette body 1-1 through the mechanical arm 3, moves the pipette 1-2 to the top of the quantitative cup 9, and then presses the button 1-4 to send the mother liquid in the pipette 1-2 into the quantitative cup 9;

[0040] The control system weighs the volume of the mother liquor in the quantitative cup 9 through the analytical balance 8, calculates the required volume of pure water according to the concentration of the prepared solution, and then controls the pure water quantitative pump 10 to deliver the required volume of pure water into the quantitative cup 9 to complete the preparation of the prepared solution. The high degree of automation provides great convenience for the experimenters.

Claims

1. A fully automatic dispensing device, characterized in that: It comprises a control system, a liquid transfer device (1), a manipulator (2), a mechanical arm (3), a mother liquid tank (4), a liquid transfer platform (5), an analytical balance (8), a quantitative cup (9), a pure water quantitative pump (10) and a pure water tank (11); the liquid transfer device (1) comprises a liquid transfer device body (1-1), a switch (1-3) and a plurality of liquid transfer tubes (1-2); The inlet of each pipette (1-2) is connected to the outlet of the switch (1-3), wherein the inlet of the switch (1-3) is connected to the outlet of the pipetting device body (1-1), the manipulator (2) is connected to the button (1-4) on the top of the pipetting device body (1-1), the manipulator (3) is connected to the manipulator (2), the mother liquid tank (4) is located on the pipetting platform (5), the quantitative cup (9) is located on the analytical balance (8), and the outlet of the pure water tank (11) is connected to the quantitative cup (9) via the pure water quantitative pump (10); The control system is connected to the mechanical arm (3), the mechanical hand (2), the analytical balance (8) and the pure water quantitative pump (10); The control system is connected with a touch screen; It also includes a liquid level detection system; the liquid level detection system is directly opposite to each pipette (1-2), and the control system is connected to the liquid level detection system.

2. The fully automatic dispensing device according to claim 1, characterized in that: The number of pipettes (1-2) is three.

3. The fully automatic dispensing device according to claim 2, characterized in that: The specifications of the three pipettes (1-2) are 0-0.1 mL, 0-1 mL and 0-10 mL respectively.

4. The fully automatic dispensing device according to claim 1, characterized in that: It also includes a pure water bottle (6) and a pure water platform (7); the pure water bottle (6) is located on the pure water platform (7).

5. The fully automatic dispensing device according to claim 1, characterized in that: During operation, the control system controls the robot arm (3) to move the pipetting device body (1-1).

6. The fully automatic dispensing device according to claim 1, characterized in that: During operation, the control system controls the manipulator (2) to press the button (1-4), so that the liquid is sucked into or squeezed out of the pipette (1-2) through the liquid transfer device body (1-1).

7. The fully automatic dispensing device according to claim 1, characterized in that: When preparing the solution, the following relationship applies: M 水 =ρ·VM 母 (2) Among them, V 水 is the volume of pure water required, M 水 is the weight of pure water required, ρ is the density of the prepared solution at room temperature, V is the volume of the prepared solution, M 母 is the mass of the mother liquor required, V 母 is the volume of the mother solution required.

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