Automatic pipetting experiment device

Abstract

The utility model discloses an automatic pipetting experiment device, which belongs to the technical field of biochemical experiment equipment and is characterized in that a Z-axis motor is connected by a Z-axis screw rod, a Z-direction moving group, a pipetting gun group and a pressing motor group are mounted on a Z-axis linear guide rail, a measuring range group is mounted on a pipetting module back plate, and a pressure sensor group is mounted on the measuring range group. A Y-axis moving set and an X-axis moving set are installed on the structural frame. The pipette operation module can realize the disassembly of the pipette head by pressing the pipette head disassembly component, the installation of the pipette head is realized by pressing the pipette body, the range adjustment of the pipette is realized by rotating the pipette range knob, and the liquid suction and liquid discharge are realized by pressing different gears of the pipette suction and discharge button. According to the utility model, an automatic mechanical device is used for replacing manual operation of the pipette, so that the pipette has the advantages that the pipette can be replaced and applied to different sampling scenes; the liquid taking precision is not lower than that of manual operation; reliability is high and all-weather work can be realized.

Description

Technical Field

[0001] The utility model relates to an automated liquid transfer experimental device, belonging to the technical field of biochemical experimental equipment. Background Art

[0002] For example, the application number: CN219232403U discloses a laboratory automated pipetting device, which includes a hanging plate, a servo motor, a pipetting tank and an end plate, a power box being installed on one end of the top of the hanging plate by screws, a servo motor being installed on one end of the bottom of the hanging plate by a mounting seat, and the output shaft of the servo motor is connected to a lead screw, a lead screw is sleeved with a lead block, and an electric hydraulic cylinder is installed on the bottom of the lead block by a fixed seat plate and bolts, a metering pump is installed on the output shaft of the electric hydraulic cylinder by a positioning plate and screws, and the suction port of the metering pump is connected to a suction pipe, a pipetting tank is installed on one side of the metering pump by screws, and the bottom of the pipetting tank is connected to an output pipe, and a control valve is arranged on the output pipe. The laboratory pipetting device has a high degree of automation, can achieve precise positioning, and is suitable for wide promotion and use.

[0003] Based on the search and analysis, the existing technology still has deficiencies:

[0004] The prior art liquid transfer experimental device has low precision, which easily leads to the problem that the solution is easily mixed and contaminated during use. Therefore, an automated liquid transfer experimental device is needed to improve the above-mentioned shortcomings. Utility Model Content

[0005] The main purpose of the utility model is to provide an automated liquid transfer experimental device.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] An automated liquid transfer experimental device comprises a structural frame, on which a Y-axis motor and an X-axis motor are respectively mounted;

[0008] The Y-axis linear guide and the X-axis linear guide are respectively installed on the structural frame, the X-axis linear guide is slidably installed on the pipetting module back plate, the Z-axis linear guide is installed on the pipetting module back plate, the Z-axis linear guide and the gun head pressure rod are respectively installed on the front of the pipetting module back plate, and the Z-axis motor is connected by a Z-axis screw rod;

[0009] A Z-direction moving group is installed on the Z-axis linear guide, a pipette gun group is installed on the Z-axis linear guide, a pressing motor group is installed on the Z-axis linear guide, a range group is installed on the back plate of the pipetting module, a Y-axis moving group is installed on the structural frame, and an X-axis moving group is installed on the structural frame.

[0010] Preferably, the Z-axis moving group includes a pipette mounting plate and a pipette mounting seat body. The pipette mounting plate is installed on a slider on the Z-axis linear guide rail, and the pipette mounting seat body is installed on the front of the pipette mounting plate. The Z-axis motor can drive the Z-axis screw to rotate, thereby driving the pipette mounting plate to move along the Z-axis direction.

[0011] Preferably, the pipette assembly includes a fixed pipette and a pipette cover. The fixed pipette is installed on the pipette mounting seat body, and the pipette is fixed by mutual compression of the pipette mounting seat body and the pipette cover.

[0012] Preferably, the pressing motor group includes a pressing motor and a control screw. The control screw is installed on one side of the pipette gun mounting plate, and the pressing motor is installed on the control screw.

[0013] Preferably, the range group includes a pressing module, a sleeve cap, a fixed pipette and a range adjustment motor. The range adjustment motor is installed on the Z-axis linear guide rail on one side of the pipette mounting plate. The range adjustment motor is installed with a sleeve cap, and the fixed pipette is installed on the sleeve cap. The range adjustment motor is connected to the pressing module and the control screw for lifting.

[0014] Preferably, the Y-axis moving group includes a Y-axis linear guide and a Y-axis synchronous belt. The Y-axis linear guide is installed on the upper surface of the structural frame, the output end of the Y-axis motor is sleeved with a Y-axis synchronous belt, and the X-axis linear guide moves along the Y-axis motor.

[0015] Preferably, the X-axis moving group includes an X-axis motor and an X-axis structural rod, the front of the X-axis structural rod is equipped with an X-axis linear guide, the X-axis motor is mounted on a motor seat, the motor seat is mounted on the upper surface of the X-axis structural rod, and a synchronous pulley is installed on the output shaft of the X-axis motor, which drives the X-axis synchronous belt to move.

[0016] Preferably, a frame base plate is installed at the bottom of the structural frame, and experimental containers can be placed on the frame base plate. The available experimental containers include but are not limited to beakers, well plates, tip boxes, pipette bodies, pipette range adjustment knobs and pipette tip pop-up buttons, and replaceable pipette tips.

[0017] Beneficial technical effects of the utility model:

[0018] The utility model provides an automated liquid transfer experimental device, wherein the rotation of the Y-axis motor drives the Y-axis synchronous belt to move, further drives the X-axis moving rod to move along the Y-axis to the desired Y-axis coordinate position of the gun head, the rotation of the X-axis motor drives the X-axis synchronous belt to move, further drives the liquid transfer gun operation module to move along the X-axis to the desired X-axis coordinate position of the gun head, the rotation of the Z-axis motor drives the Z-axis screw to move, further drives the liquid transfer gun operation module to move along the negative direction of the Z-axis to the end of the liquid transfer gun to contact and nest with the gun head, and completes the operation of installing the liquid transfer gun head;

[0019] The rotation of the Y-axis motor drives the Y-axis synchronous belt to move, which further drives the X-axis moving rod to move along the Y-axis to the Y-axis coordinate position required to accommodate the disassembled gun head. The rotation of the X-axis motor drives the X-axis synchronous belt to move, which further drives the pipette gun operation module to move along the X-axis to the X-axis coordinate position required to accommodate the disassembled gun head. The rotation of the Z-axis motor drives the Z-axis screw to move, which further drives the pipette gun operation module to move along the positive direction of the Z-axis to the pipette gun head ejection button and the ejection gun head pressure rod to contact and press down, completing the operation of ejecting the pipette gun head;

[0020] The rotation of the Y-axis motor drives the Y-axis synchronous belt to move, which further drives the X-axis moving rod to move along the Y-axis to the Y-axis coordinate position of the desired solution to be absorbed; the rotation of the X-axis motor drives the X-axis synchronous belt to move, which further drives the pipette gun operation module to move along the X-axis to the X-axis coordinate position of the desired solution to be absorbed; the rotation of the Z-axis motor drives the Z-axis lead screw to move, which further drives the pipette gun operation module to move along the negative direction of the Z-axis until the pipette gun head is immersed in the solution liquid surface to a certain depth; the rotation of the pressing motor drives the pressing control lead screw to move, which further drives the pressing module to move along the negative direction of the Z-axis until the sleeve cap contacts the pipette gun range adjustment knob and is pressed down to the depth of the absorption solution gear position, thereby completing the operation of the pipette gun aspirating liquid;

[0021] The rotation of the Y-axis motor drives the Y-axis synchronous belt to move, which further drives the X-axis moving rod to move along the Y-axis to the Y-axis coordinate position of the desired solution to be discharged; the rotation of the X-axis motor drives the X-axis synchronous belt to move, which further drives the pipette gun operation module to move along the X-axis to the X-axis coordinate position of the desired solution to be discharged; the rotation of the Z-axis motor drives the Z-axis lead screw to move, which further drives the pipette gun operation module to move along the negative direction of the Z-axis to a height close to or immersed in the solution; the rotation of the pressing motor drives the pressing control lead screw to move, which further drives the pressing module to move along the negative direction of the Z-axis until the sleeve cap contacts the pipette gun range adjustment knob and is pressed down to the depth of the discharge solution gear position, thereby completing the operation of installing the pipette gun to discharge liquid;

[0022] The rotation of the pressing motor drives the movement of the pressing control screw, and further drives the pressing module to move along the negative direction of the Z axis to the depth where the sleeve cap contacts the pipette range adjustment knob. The rotation of the range adjustment motor drives the sleeve cap to rotate, and then drives the pipette adjustment knob to rotate to complete the adjustment of the pipette range. The utility model uses an automated mechanical device to simulate manual operation of the pipette, and has a simple overall structure and convenient disassembly and maintenance. It has the advantages of multiple pipette models to improve the pipetting range and accuracy during manual operation, and can well replace manual pipetting for high-throughput pipetting work. The utility model uses an automated mechanical device to replace manual pipettes, and has the following advantages: interchangeable pipette models, which are used in different sampling scenarios; the liquid collection accuracy is not lower than that of manual operation; it has high reliability and can work around the clock. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the overall assembly of a preferred embodiment of an automated liquid transfer experimental device according to the utility model;

[0024] Figure 2 A schematic diagram of a pipette gun operating module according to a preferred embodiment of an automated pipetting experimental device of the utility model;

[0025] Figure 3 A schematic diagram of a main movable frame and a bottom plate of a preferred embodiment of an automated liquid transfer experimental device according to the utility model;

[0026] Figure 4 The figure is a schematic diagram of the structure of a commonly used pipette gun according to a preferred embodiment of an automated pipetting experimental device of the utility model.

[0027] In the figure: 1. Z-axis linear guide; 2. Pipette mounting plate; 3. Control screw; 4. Press module; 5. Sleeve cap; 6. Press motor; 7. Fix the pipette; 8. Press the pipette cover on the pipette; 9. Range adjustment motor; 10. Pipette module back plate; 11. Z-axis motor; 12. Ejection head pressure rod; 13. Z-axis screw; 14. Pipette mounting seat body; 20. Beaker; 21. Orifice plate; 22. Tip box; 23. Frame bottom plate; 24. Structural frame; 25. Y-axis linear guide; 26. Y-axis synchronous belt; 27. Y-axis motor; 28. X-axis motor; 29. ​​X-axis structural rod; 30. X-axis linear guide; 31. X-axis synchronous belt; 40. Pipette range adjustment knob; 41. Pipette tip ejection button; 42. Pipette body; 43. Pipette tip. DETAILED DESCRIPTION

[0028] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0029] like Figure 1 - Figure 4 As shown, an automated liquid transfer experimental device provided in this embodiment includes a structural frame 24, on which a Y-axis motor 27 and an X-axis motor 28 are respectively installed;

[0030] The Y-axis linear guide 25 and the X-axis linear guide 30 are respectively installed on the structural frame 24, the X-axis linear guide 30 is slidably installed on the pipetting module back plate 10, the Z-axis linear guide 1 is installed on the pipetting module back plate 10, the Z-axis linear guide 1 and the gun head pressure rod 12 are respectively installed on the front of the pipetting module back plate 10, and the Z-axis motor 11 is connected by the Z-axis screw rod 13;

[0031] A Z-direction moving group is installed on the Z-axis linear guide 1, a pipette gun group is installed on the Z-axis linear guide 1, a pressing motor group is installed on the Z-axis linear guide 1, a range group is installed on the pipetting module back plate 10, a Y-axis moving group is installed on the structural frame 24, and an X-axis moving group is installed on the structural frame 24.

[0032] The Z-axis moving group includes a pipette mounting plate 2 and a pipette mounting seat body 14. The pipette mounting plate 2 is installed on a slider on the Z-axis linear guide 1, and the pipette mounting seat body 14 is installed on the front of the pipette mounting plate 2. The Z-axis motor 11 can drive the Z-axis screw 13 to rotate, thereby driving the pipette mounting plate 2 to move along the Z-axis direction.

[0033] The pipette assembly includes a fixed pipette 7 and a pipette cover 8. The fixed pipette 7 is installed on the pipette mounting seat body 14. The pipette 7 is fixed by mutual compression between the pipette mounting seat body 14 and the pipette cover 8.

[0034] The pressing motor assembly includes a pressing motor 6 and a control screw 3 . The control screw 3 is installed on one side of the pipette gun mounting plate 2 , and the pressing motor 6 is installed on the control screw 3 .

[0035] The range group includes a pressing module 4, a sleeve cap 5, a fixed pipette 7 and a range adjustment motor 9. The range adjustment motor 9 is installed on the Z-axis linear guide 1 on one side of the pipette mounting plate 2. The sleeve cap 5 is installed on the range adjustment motor 9, and the fixed pipette 7 is installed on the sleeve cap 5. The range adjustment motor 9 is connected to the pressing module 4 and the control screw 3 for lifting.

[0036] The Y-axis moving group includes a Y-axis linear guide 25 and a Y-axis synchronous belt 26. The Y-axis linear guide 25 is installed on the upper surface of the structural frame 24. The output end of the Y-axis motor 27 is sleeved with the Y-axis synchronous belt 26. The X-axis linear guide 30 moves along the Y-axis motor 27.

[0037] The X-axis moving group includes an X-axis motor 28 and an X-axis structural rod 29. An X-axis linear guide 30 is installed on the front of the X-axis structural rod 29. The X-axis motor 28 is installed on the motor seat, and the motor seat is installed on the upper surface of the X-axis structural rod 29. The output shaft of the X-axis motor 28 is installed with a synchronous pulley, and the synchronous pulley drives the X-axis synchronous belt 31 to move.

[0038] A frame base plate 23 is installed at the bottom of the structural frame 24, and experimental containers can be placed on the frame base plate 23. The available experimental containers include but are not limited to beakers 20, well plates 21, tip boxes 22, pipette bodies 42, pipette range adjustment knobs 40 and pipette tip pop-up buttons 41, and replaceable pipette tips 43.

[0039] like Figure 1 - Figure 4As shown, the working process of an automated liquid transfer experimental device provided in this embodiment is as follows: when in use, place a required type of liquid transfer gun on the liquid transfer gun mounting seat body 14, then cover the liquid transfer gun cover 8 to complete the installation of the liquid transfer gun, and place the required experimental container on the frame bottom plate 23;

[0040] According to the experimental requirements, the pipette gun 7 needs to realize four basic actions: moving in the three directions of X\Y\Z, pressing the pipette gun adjustment knob 40, rotating the pipette gun adjustment knob 40, and pressing the pipette gun tip ejection button 41. When performing experimental work, the pipette gun needs to be operated based on the four basic actions to form conventional experimental operations: installing the pipette gun tip 43, disassembling the pipette gun tip 43, adjusting the range, aspirating, discharging, etc.

[0041] The Y-axis motor 27 rotates, driving the Y-axis synchronous belt 26 to move, further driving the X-axis moving rod to move along the Y-axis direction, the X-axis motor 28 rotates, driving the X-axis synchronous belt 31 to move, further driving the pipette gun operating module to move along the X-axis direction, the Z-axis motor 11 can drive the Z-axis screw rod 13 to rotate, further driving the pipette gun mounting plate 2 to move along the Z-axis direction, the pipette gun 7 is installed on the pipette gun mounting seat body 14, the pipette gun 7 can realize the movement of the three directions of X\Y\Z with the above structure, the pipette gun 7 moves along the positive direction of the Z-axis, the gun head pressure rod 12 contacts the pipette gun head ejection button 41, the pipette gun 7 continues to move along the positive direction of the Z-axis, the gun head pressure rod 12 presses the pipette gun head ejection button 41, and the pipette gun head ejection button 41 is pressed, and the pressing motor 6 can drive the pressing control screw rod 3 to rotate, and further drive the pressing module 4 to move along the Z-axis direction, and the pipette gun adjustment knob 40 is pressed or released;

[0042] The sleeve cap 5 cooperates with the pipette range adjustment knob 40 , and the range adjustment motor 9 can drive the sleeve cap 5 to rotate, and the sleeve cap 5 drives the pipette range adjustment knob 40 to rotate, thereby realizing the rotation of the range adjustment knob 40 .

[0043] Example

[0044] like Figure 1 - Figure 4 As shown, in the fields of medical testing, biochemical experiments, etc., high-throughput pipetting is often required, which mainly relies on a large number of manual operations of pipette guns for pipetting. Therefore, a new type of automated pipetting equipment is needed to replace manual operation of pipetting. The existing automated pipetting devices mainly use piston cylinders or peristaltic pumps to control the suction of liquids. The pipetting accuracy and range depend on the accuracy of the structure. When facing different range requirements, traditional manually used pipette guns can choose different models of pipette guns to improve the pipetting accuracy. However, the piston rod design parameters are fixed, and its accuracy cannot be improved by reducing the cylinder body. The peristaltic pump is suitable for solution canning and experiments with multiple types of aspirated solutions. The peristaltic pump needs to consider avoiding mixed contamination.

[0045] In view of the above shortcomings, the present application has made improvements: the Y-axis motor 27 rotates to drive the Y-axis synchronous belt 26 to move, further drives the X-axis moving rod to move along the Y-axis to the desired Y-axis coordinate position of the gun head, the X-axis motor 28 rotates to drive the X-axis synchronous belt 31 to move, further drives the pipette gun operating module to move along the X-axis to the desired X-axis coordinate position of the gun head, the Z-axis motor 11 rotates to drive the Z-axis screw to move, further drives the pipette gun operating module to move along the negative direction of the Z-axis to the end of the pipette gun to contact and nest with the gun head, and completes the operation of installing the pipette gun head 43;

[0046] The Y-axis motor 27 rotates to drive the Y-axis synchronous belt 26 to move, and further drives the X-axis moving rod to move along the Y-axis to the Y-axis coordinate position required to accommodate the disassembled gun head. The X-axis motor 28 rotates to drive the X-axis synchronous belt 31 to move, and further drives the pipette gun operating module to move along the X-axis to the X-axis coordinate position required to accommodate the disassembled gun head. The Z-axis motor 11 rotates to drive the Z-axis screw to move, and further drives the pipette gun operating module to move along the positive direction of the Z-axis to the pipette gun head ejection button 41 to contact and press the ejection gun head pressure rod 12, completing the operation of ejecting the pipette gun head 43;

[0047] The rotation of the Y-axis motor 27 drives the Y-axis synchronous belt 26 to move, and further drives the X-axis moving rod to move along the Y-axis to the Y-axis coordinate position of the desired solution to be absorbed. The rotation of the X-axis motor 28 drives the X-axis synchronous belt 31 to move, and further drives the liquid transfer gun operation module to move along the X-axis to the X-axis coordinate position of the desired solution to be absorbed. The rotation of the Z-axis motor 11 drives the Z-axis screw to move, and further drives the liquid transfer gun operation module to move along the negative direction of the Z-axis to the liquid transfer gun head 43 to immerse a certain depth of the solution surface. The rotation of the pressing motor 6 drives the pressing control screw 3 to move, and further drives the pressing module to move along the negative direction of the Z-axis to the sleeve cap 5 to contact the liquid transfer gun range adjustment knob 40 and press down to the depth of the solution absorption gear position, thereby completing the operation of the liquid transfer gun to absorb liquid;

[0048] The Y-axis motor 27 rotates to drive the Y-axis synchronous belt 26 to move, and further drives the X-axis moving rod to move along the Y-axis to the Y-axis coordinate position of the desired solution discharge, the X-axis motor 28 rotates to drive the X-axis synchronous belt 31 to move, and further drives the pipette gun operating module to move along the X-axis to the X-axis coordinate position of the desired solution discharge, the Z-axis motor 11 rotates to drive the Z-axis screw to move, and further drives the pipette gun operating module to move along the negative direction of the Z-axis to a height close to or immersed in the solution, the pressing motor 6 rotates to drive the pressing control screw 3 to move, and further drives the pressing module to move along the negative direction of the Z-axis to the sleeve cap 5 to contact the pipette gun range adjustment knob 40 and press down to the depth of the discharge solution gear, and completes the operation of installing the pipette gun to discharge liquid;

[0049] The pressing motor 6 rotates to drive the pressing control screw 3 to move, and further drives the pressing module to move along the negative direction of the Z axis to the depth where the sleeve cap 5 contacts the pipette range adjustment knob 40. The range adjustment motor 9 rotates to drive the sleeve cap 5 to rotate, and then drives the pipette adjustment knob 40 to rotate to complete the adjustment of the pipette range. The utility model uses an automated mechanical device to simulate manual operation of the pipette, and has a simple overall structure and convenient disassembly and maintenance. It has the advantages of multiple pipette models to choose from during manual operation to improve the pipetting range and accuracy, and can well replace manual pipetting for high-throughput pipetting work. The utility model uses an automated mechanical device to replace manual pipettes, and has the following advantages: 1. Interchangeable pipette models are used in different sampling scenarios; 2. The liquid collection accuracy is not lower than that of manual operation; 3. High reliability and can work around the clock.

[0050] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An automated liquid transfer experimental device, comprising a structural frame (24), on which a Y-axis motor (27) and an X-axis motor (28) are respectively mounted; Features: A Y-axis linear guide (25) and an X-axis linear guide (30) are respectively installed on the structural frame (24); a liquid transfer module back plate (10) is slidably installed on the X-axis linear guide (30); a Z-axis linear guide (1) is installed on the liquid transfer module back plate (10); the Z-axis linear guide (1) and the gun head pressure rod (12) are respectively installed on the front of the liquid transfer module back plate (10); and the Z-axis motor (11) is connected by a Z-axis screw rod (13); A Z-direction moving group is installed on the Z-axis linear guide rail (1), a liquid transfer gun group is installed on the Z-axis linear guide rail (1), a pressing motor group is installed on the Z-axis linear guide rail (1), a measuring range group is installed on the liquid transfer module back plate (10), a Y-axis moving group is installed on the structural frame (24), and an X-axis moving group is installed on the structural frame (24).

2. An automated liquid transfer experimental device according to claim 1, characterized in that: The Z-direction moving group comprises a pipette mounting plate (2) and a pipette mounting seat body (14); the pipette mounting plate (2) is mounted on a slider on a Z-axis linear guide rail (1); the pipette mounting seat body (14) is mounted on the front of the pipette mounting plate (2); and the Z-axis motor (11) can drive the Z-axis screw rod (13) to rotate, thereby driving the pipette mounting plate (2) to move along the Z-axis direction.

3. An automated liquid transfer experimental device according to claim 2, characterized in that: The pipette assembly comprises a fixed pipette (7) and a pipette cover (8) on which the pipette is pressed. The fixed pipette (7) is mounted on a pipette mounting seat body (14). The pipette (7) is fixed by mutual compression between the pipette mounting seat body (14) and the pipette cover (8).

4. An automated liquid transfer experimental device according to claim 3, characterized in that: The pressing motor assembly comprises a pressing motor (6) and a control screw (3); the control screw (3) is mounted on one side of the pipette mounting plate (2); and the pressing motor (6) is mounted on the control screw (3).

5. An automated liquid transfer experimental device according to claim 4, characterized in that: The measuring range group comprises a pressing module (4), a sleeve cap (5), a fixed liquid transfer gun (7) and a measuring range adjustment motor (9); the measuring range adjustment motor (9) is mounted on a Z-axis linear guide rail (1) on one side of a liquid transfer gun mounting plate (2); the sleeve cap (5) is mounted on the measuring range adjustment motor (9); the fixed liquid transfer gun (7) is mounted on the sleeve cap (5); and the measuring range adjustment motor (9) is connected to the pressing module (4) and the control screw rod (3) for lifting and lowering.

6. An automated liquid transfer experimental device according to claim 5, characterized in that: The Y-axis moving group comprises a Y-axis linear guide rail (25) and a Y-axis synchronous belt (26); the Y-axis linear guide rail (25) is mounted on the upper surface of the structural frame (24); the output end of the Y-axis motor (27) is sleeved with the Y-axis synchronous belt (26); and the X-axis linear guide rail (30) moves along the Y-axis motor (27).

7. An automated liquid transfer experimental device according to claim 6, characterized in that: The X-axis moving group comprises an X-axis motor (28) and an X-axis structural rod (29), the front of the X-axis structural rod (29) is provided with an X-axis linear guide rail (30), the X-axis motor (28) is arranged on a motor seat, the motor seat is arranged on the upper surface of the X-axis structural rod (29), the output shaft of the X-axis motor (28) is provided with a synchronous pulley, and the synchronous pulley drives the X-axis synchronous belt (31) to move.

8. An automated liquid transfer experimental device according to claim 7, characterized in that: A frame base plate (23) is installed at the bottom of the structural frame (24), and an experimental container can be placed on the frame base plate (23). The available experimental containers include but are not limited to beakers (20), well plates (21), gun tip boxes (22), pipette bodies (42), pipette range adjustment knobs (40) and pipette tip ejection buttons (41), and replaceable pipette tips (43).

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