Automatic arrangement equipment for pipette tips

Abstract

The invention relates to the technical field of pipette accessory machining, in particular to pipette tip automatic arrangement equipment which comprises a conveying frame and a PLC on the conveying frame, supporting tables are fixedly mounted on the two sides of one end of the conveying frame correspondingly, and automatic transfer assemblies are arranged at the top ends of the supporting tables correspondingly; and the automatic transfer assemblies on the two supporting tables are arranged in opposite directions. By adjusting the position of the clamping frame, the suction heads on the clamping frame can be quickly and uniformly stacked in the placing holes in the top end of the pipettor suction head frame, the arrangement of the suction heads can be quickly completed, the suction heads in different directions in the moving process can be screened, the accuracy of the arrangement of the suction heads can be improved, and the working efficiency is improved. Through mutual cooperation of the automatic transferring assemblies on the two supporting tables, the suction heads in different directions in the moving process can be sucked, the tip ends of the suction heads are inserted into the containing holes, the scattered suction heads can be rapidly arranged, and the arrangement efficiency of the suction heads can be further improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipette accessories processing, in particular to an automatic arrangement device for pipette tips. Background Art

[0002] A pipette is a type of pipette, commonly used to transfer small or trace amounts of liquid in the laboratory. Different specifications of pipettes are equipped with different sizes of pipette tips. The shapes produced by different manufacturers are also slightly different, but the working principles and operating methods are basically the same;

[0003] Pipette tips are consumables for pipettes. A single experiment requires the preparation of a large number of tips. During the tip preparation process, the scattered tips need to be evenly stacked on the pipette holder. During the sorting process, when sorting is performed manually, when a large number of tips need to be sorted at a single time, the efficiency of manual sorting is low. When the tips are sorted through an assembly line with an air pump, due to the inconsistent shapes of the two ends of the tips, the tips need to be inserted into the holder first when stacking to expose the rear end of the tips. During the movement of the tips on the conveyor belt, the moving direction of the tips is difficult to control, and there may be a phenomenon that the tips of the tips touch each other or the rear ends of the tips touch each other. Mechanical equipment is prone to sucking up two tips in different or same directions during the grasping process, which will affect the accuracy of the tip sorting.

[0004] Therefore, an automatic arrangement device for pipette tips is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic sorting device for pipette tips, which screens the tips in different directions during the movement through an automatic arrangement component, and through the cooperation of automatic transfer components on two support tables, respectively adsorbs the tips in different directions during the movement and inserts the tips of the tips into placement holes, thereby quickly sorting the scattered tips and improving the sorting efficiency of the tips.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A device for automatically arranging pipette tips comprises a conveying frame and a PLC controller on the conveying frame, support tables are fixedly installed on both sides of one end of the conveying frame, automatic transfer components are arranged on the top of the support tables, and the automatic transfer components on the two support tables are arranged in opposite directions, the automatic transfer component comprises an electric telescopic rod rotatably installed on the top of the support table, a fourth motor is fixedly installed on the bottom end of the support table, and the central axis of the fourth motor is fixedly connected to the central axis of the electric telescopic rod, the top of the electric telescopic rod is fixedly connected to the support frame, an automatic arrangement component is arranged on the top of the conveying frame, the two automatic transfer components periodically rotate at different positions on the top of the automatic arrangement component, and an automatic adjustment component is also arranged on the top of the support table, the automatic adjustment component comprises a pipette tip rack arranged on the support table, and the automatic adjustment component pushes the pipette tip rack to continuously fit with the automatic arrangement component.

[0008] Preferably, a first motor is fixedly installed at the edge position of the top end of the support frame, the output end of the first motor is fixedly connected to a flip frame, the flip frame is L-shaped, a second motor is fixedly installed on the bottom wall of the flip frame, the output end of the second motor is fixedly connected to a connecting tube, a plurality of clamping frames are evenly connected and arranged on the outer wall of the connecting tube, air holes are opened on the inner wall of the clamping frames, the plurality of clamping frames are arranged in an arc shape, and the size of the clamping frames is adapted to the size of the suction head.

[0009] Preferably, an air pump is fixedly installed on the top of the flip frame, and an air guide pipe is connected to the bottom of the air pump. The other end of the air guide pipe is sleeved on the axis of the connecting tube, and the air guide pipe is connected to the air hole on the clamping frame.

[0010] Through the above scheme, the fourth motor can drive the electric telescopic rod to rotate on the support table, and the electric telescopic rod can drive the support frame to slide up and down on the top of the conveying frame, the first motor can drive the flipping frame to flip on the side wall of the support frame, so that the horizontally placed connecting tube can be turned into a vertical direction, and the second motor can drive the connecting tube to rotate on the top of the conveying frame, so that the clamping frames at different positions on the connecting tube can be aligned with the corresponding suction heads one by one, and the air pump at the top of the flipping frame can generate suction in the air hole, and the solenoid valve in the air hole can be used to adsorb multiple suction heads one by one, and the adsorbed suction heads can be transferred to the top of the pipette tip rack by adjusting the position of the clamping frame. The suction heads on the clamping frame can be quickly and evenly stacked in the placement holes at the top of the pipette tip rack, and the arrangement of the suction heads can be quickly completed. The cooperation of the two automatic transfer components can improve the efficiency of suction head arrangement.

[0011] Preferably, the automatic arrangement component includes a conveyor belt rotatably mounted on the top of a conveyor frame, a drive motor for driving the conveyor belt to move is fixedly mounted on the conveyor frame, two limit frames are symmetrically mounted on the top of the conveyor frame, and the two limit frames are both located above the conveyor belt.

[0012] Preferably, the two limit frames are symmetrically arranged, the distance between the two limit frames at the support platform is slightly larger than the diameter of the suction head, the other end of the limit frame is inclined, and the angle of the inner side of the limit frame is an obtuse angle.

[0013] Preferably, a baffle is fixedly installed on the side walls of the two limit frames near the support platform, and the thickness of the baffle is smaller than the thickness of the limit frame. The bottom wall at the tip of the suction head is located above the baffle. A pressure sensor is also provided on the inner side of the baffle, and the pressure sensor is electrically connected to the automatic transfer component on the upper side of the PLC controller.

[0014] Through the above scheme, the conveyor belt can drive the suction head to transfer on the conveyor rack, the obtuse angle of the limit rack can intercept a large number of suction heads to prevent the suction heads from falling from the conveyor rack, and the narrow part of the limit rack is convenient for the suction heads to be arranged one by one. When the tip of the suction head passes through the baffle first, the suction head can continue to slide with the conveyor belt, so that the suction head can be moved to the automatic transfer component at the front end of the conveyor rack. When the rear end of the suction head moves to the baffle first, the baffle can intercept the suction head. At this time, the conveyor belt pushes the suction head to squeeze the baffle. At this time, the pressure sensor on the baffle can send a signal. At this time, the automatic transfer component on the support platform on the rear side of the conveyor rack immediately receives the signal to adsorb the suction head intercepted on the baffle, and can screen the suction heads in different directions during the movement, which can improve the accuracy of suction head sorting. Through the cooperation of the automatic transfer components on the two support platforms, the suction heads in different directions during the movement can be adsorbed respectively and the tip of the suction head can be inserted into the placement hole, which can quickly sort the scattered suction heads, and can further improve the efficiency of suction head sorting.

[0015] Preferably, the automatic adjustment component includes a threaded screw rotatably mounted on the top of the support platform, a third motor fixedly mounted on the side wall of the support platform and fixedly connected to the central axis of the threaded screw, a movable ring is fixedly mounted on the bottom end of the pipette tip rack, and a threaded hole matching the threaded screw is opened at the center of the movable ring.

[0016] Preferably, the pipette tip rack is movably clamped above the placement plate, and placement holes adapted to the tips are evenly formed on the top of the pipette tip rack.

[0017] Preferably, a slide rail is symmetrically fixedly installed on the top end of the support platform, and a slide slot frame adapted to the slide rail is symmetrically fixedly installed on the bottom end of the placement plate.

[0018] Through the above scheme, when the third motor is energized, the third motor can drive the threaded screw to rotate on the top of the support table. At this time, the placement plate can rotate along the threaded screw through the threaded hole at the center of the movable ring. At this time, the placement plate can slide horizontally on the slide rail through the slide groove frame. At this time, the pipette tip rack clamped on the top of the placement plate can slide on the support table with the placement plate. By controlling the rotation direction of the third motor, the sliding direction of the placement plate can be controlled, which can facilitate the pipette tip rack to gradually approach the automatic transfer component, thereby facilitating the automatic stacking of the tips.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention provides an automatic transfer component, the fourth motor can drive the electric telescopic rod to rotate on the support table, and the electric telescopic rod can drive the support frame to slide up and down on the top of the conveying frame, the first motor can drive the flip frame to flip on the side wall of the support frame, so that the horizontally placed connecting tube can be turned into a vertical direction, and the second motor can drive the connecting tube to rotate on the top of the conveying frame, so that the clamping frames at different positions on the connecting tube can be aligned with the corresponding suction heads one by one, and the air pump at the top of the flip frame can generate suction in the air hole, and the solenoid valve in the air hole can be used to adsorb multiple suction heads one by one, and the adsorbed suction heads can be transferred to the top of the pipette tip rack by adjusting the position of the clamping frame. The suction heads on the clamping frame can be quickly and evenly stacked in the placement holes at the top of the pipette tip rack, so that the arrangement of the suction heads can be quickly completed, and the two automatic transfer components cooperate with each other to improve the efficiency of the arrangement of the suction heads.

[0021] 2. The present invention is provided with an automatic arrangement component, the conveyor belt can drive the suction head to transfer on the conveyor rack, the obtuse angle of the limit rack can intercept a large number of suction heads to prevent the suction heads from falling from the conveyor rack, and the narrow part of the limit rack is convenient for the suction heads to be arranged one by one. When the tip of the suction head passes through the baffle first, the suction head can continue to slide with the conveyor belt, so that the suction head can be moved to the automatic transfer component at the front end of the conveyor rack. When the rear end of the suction head moves to the baffle first, the baffle can intercept the suction head. At this time, the conveyor belt pushes the suction head to squeeze the baffle, and the pressure sensor on the baffle can send a signal. At this time, the automatic transfer component on the support platform at the rear side of the conveyor rack immediately receives the signal to adsorb the suction head intercepted on the baffle, and can screen the suction heads in different directions during the movement, which can improve the accuracy of the suction head arrangement. Through the mutual cooperation of the automatic transfer components on the two support platforms, the suction heads in different directions during the movement can be adsorbed respectively and the tip of the suction head can be inserted into the placement hole, which can quickly arrange the scattered suction heads, and can further improve the arrangement efficiency of the suction heads.

[0022] 3. The present invention is provided with an automatic adjustment component. When the third motor is energized, the third motor can drive the threaded screw to rotate on the top of the support table. At this time, the placement plate can rotate along the threaded screw through the threaded hole at the center of the movable ring. At this time, the placement plate can slide horizontally on the slide rail through the slide groove frame. At this time, the pipette tip rack clamped on the top of the placement plate can slide on the support table with the placement plate. By controlling the rotation direction of the third motor, the sliding direction of the placement plate can be controlled, which can facilitate the pipette tip rack to gradually approach the automatic transfer component, and facilitate the automatic stacking of the tips. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an automatic arrangement device for pipette tips according to an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the top of the support platform in an embodiment of the present invention.

[0025] Figure 3 Schematic diagram of the structure of the fourth motor output terminal in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the second motor output terminal in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of placing the top of the plate in an embodiment of the present invention;

[0028] Figure 6 It is a bottom view of the placement board in the embodiment of the present invention.

[0029] In the figure: 1. conveying frame; 2. conveyor belt; 3. limit frame; 4. support table; 5. electric telescopic rod; 6. support frame; 7. first motor; 8. flip frame; 9. air pump; 10. second motor; 11. connecting tube; 12. third motor; 13. placement plate; 14. pipette tip rack; 15. threaded screw; 16. slide rail; 17. placement hole; 18. fourth motor; 19. clamping frame; 20. air guide tube; 21. air hole; 22. slide frame; 23. movable ring; 24. threaded hole; 25. PLC controller; 26. drive motor; 27. baffle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Example: See Figures 1 to 6 , a pipette tip automatic sorting device, including a conveying frame 1 and a PLC controller 25 on the conveying frame 1, support platforms 4 are fixedly installed on both sides of one end of the conveying frame 1, and automatic transfer components are arranged on the top of the support platforms 4, and the automatic transfer components on the two support platforms 4 are arranged in opposite directions. The automatic transfer component includes an electric telescopic rod 5 rotatably installed on the top of the support platform 4, a fourth motor 18 is fixedly installed on the bottom end of the support platform 4, and the central axis of the fourth motor 18 is fixedly connected to the central axis of the electric telescopic rod 5, and the top of the electric telescopic rod 5 is fixedly connected to a support frame 6, and an automatic arrangement component is arranged on the top of the conveying frame 1, and the two automatic transfer components periodically rotate at different positions on the top of the automatic arrangement component, and an automatic adjustment component is also arranged on the top of the support platform 4, and the automatic adjustment component pushes the pipette tip rack 14 to continuously fit with the automatic arrangement component.

[0033] A first motor 7 is fixedly installed at the edge position of the top of the support frame 6, and a flip frame 8 is fixedly connected to the output end of the first motor 7. The flip frame 8 is L-shaped. A second motor 10 is fixedly installed on the bottom wall of the flip frame 8, and a connecting tube 11 is fixedly connected to the output end of the second motor 10. A plurality of clamping frames 19 are evenly connected and arranged on the outer wall of the connecting tube 11, and air holes 21 are opened on the inner wall of the clamping frames 19. The plurality of clamping frames 19 are arranged in an arc shape, and the size of the clamping frames 19 is adapted to the size of the suction head.

[0034] An air pump 9 is fixedly installed on the top of the flip frame 8, and an air guide pipe 20 is connected to the bottom of the air pump 9. The other end of the air guide pipe 20 is sleeved on the axis of the connecting tube 11, and the air guide pipe 20 is connected to the air hole 21 on the clamping frame 19.

[0035] In the present embodiment, when in use, the fourth motor 18 can drive the electric telescopic rod 5 to rotate on the support platform 4, and the electric telescopic rod 5 can drive the support frame 6 to slide up and down on the top of the conveying frame 1, the first motor 7 can drive the flip frame 8 to flip on the side wall of the support frame 6, so that the horizontally placed connecting tube 11 can be turned into a vertical direction, and the second motor 10 can drive the connecting tube 11 to rotate on the top of the conveying frame 1, so that the clamping frames 19 at different positions on the connecting tube 11 can be aligned with the corresponding suction heads one by one, and the air pump 9 at the top of the flip frame 8 can generate suction in the air hole 21, and the solenoid valve in the air hole 21 can be used to adsorb multiple suction heads one by one, and the adsorbed suction heads can be transferred to the top of the pipette tip rack 14 by adjusting the position of the clamping frame 19. The suction heads on the clamping frame 19 can be quickly and evenly stacked in the placement hole 17 at the top of the pipette tip rack 14, and the suction heads can be quickly sorted. The two automatic transfer components cooperate with each other to improve the suction head sorting efficiency.

[0036] As an embodiment of the present invention, refer to Figure 1 The automatic arrangement component includes a conveyor belt 2 rotatably mounted on the top of a conveyor frame 1, a driving motor 26 for driving the conveyor belt 2 to move is fixedly mounted on the conveyor frame 1, and two limit frames 3 are symmetrically mounted on the top of the conveyor frame 1, and both limit frames 3 are located above the conveyor belt 2.

[0037] The two limit frames 3 are symmetrically arranged, the distance between the two limit frames 3 at the support platform 4 is slightly larger than the diameter of the suction head, the other end of the limit frame 3 is inclined, and the angle inside the limit frame 3 is an obtuse angle.

[0038] A baffle 27 is fixedly installed on the side walls of the two limit frames 3 near the support platform 4, and the thickness of the baffle 27 is less than the thickness of the limit frame 3. The bottom wall at the tip of the suction head is located above the baffle 27. A pressure sensor is also provided on the inner side of the baffle 27, and the pressure sensor is electrically connected to the automatic transfer component on the upper side of the PLC controller 25.

[0039] In this embodiment, when in use, the conveyor belt 2 can drive the suction head to transfer on the conveyor rack 1, and the obtuse angle of the limit frame 3 can intercept a large number of suction heads to prevent the suction heads from falling from the conveyor rack 1. The narrow part of the limit frame 3 facilitates the suction heads to be arranged one by one. When the tip of the suction head passes through the baffle 27 first, the suction head can continue to slide with the conveyor belt 2, and the suction head can be moved to the automatic transfer component at the front end of the conveyor rack 1. When the rear end of the suction head moves to the baffle 27 first, the baffle 27 can intercept the suction head, and the conveyor belt 2 pushes the suction head to squeeze the baffle 27. At this time, the pressure sensor on the baffle 27 can send a signal, and the automatic transfer component on the support platform 4 on the rear side of the conveyor frame 1 immediately receives the signal to adsorb the suction heads intercepted on the baffle 27, so that the suction heads in different directions during the movement can be screened, and the accuracy of suction head arrangement can be improved. Through the cooperation of the automatic transfer components on the two support platforms 4, the suction heads in different directions during the movement can be adsorbed respectively and the tips of the suction heads can be inserted into the placement holes 17, so that the scattered suction heads can be quickly arranged, which can further improve the efficiency of suction head arrangement.

[0040] As an embodiment of the present invention, refer to Figure 5-Figure 6 The automatic adjustment component includes a threaded screw 15 rotatably mounted on the top of the support platform 4, a third motor 12 fixedly mounted on the side wall of the support platform 4 and fixedly connected to the central axis of the threaded screw 15, a movable ring 23 is fixedly mounted on the bottom end of the pipette tip rack 14, and a threaded hole 24 adapted to the threaded screw 15 is opened at the center of the movable ring 23.

[0041] The pipette tip rack 14 is movably mounted above the placement plate 13 , and placement holes 17 adapted to the tips are evenly formed on the top of the pipette tip rack 14 .

[0042] A slide rail 16 is symmetrically fixedly installed on the top end of the support platform 4 , and a slide slot frame 22 adapted to the slide rail 16 is symmetrically fixedly installed on the bottom end of the placement plate 13 .

[0043] In this embodiment, when the third motor 12 is energized, the third motor 12 can drive the threaded screw 15 to rotate at the top of the support platform 4. At this time, the placement plate 13 can rotate along the threaded screw 15 through the threaded hole 24 at the center of the movable ring 23. At this time, the placement plate 13 can slide horizontally on the slide rail 16 through the slide slot frame 22. At this time, the pipette tip rack 14 clamped on the top of the placement plate 13 can slide on the support platform 4 with the placement plate 13. By controlling the rotation direction of the third motor 12, the sliding direction of the placement plate 13 can be controlled, which can facilitate the pipette tip rack 14 to gradually approach the automatic transfer component, thereby facilitating the automatic stacking of the tips.

[0044] Working principle: First, the conveyor belt 2 is controlled by driving the motor 26 to drive the suction head to transfer on the conveyor frame 1. The obtuse angle of the limit frame 3 can intercept a large number of suction heads to prevent the suction heads from falling from the conveyor frame 1. The narrow part of the limit frame 3 is convenient for the suction heads to be arranged one by one. When the tip of the suction head passes through the baffle 27 first, the suction head can continue to slide with the conveyor belt 2, and the suction head can be moved to the automatic transfer component at the front end of the conveyor frame 1. When the rear end of the suction head moves to the baffle 27 first, the baffle 27 can intercept the suction head. At this time, the conveyor belt 2 pushes the suction head to the baffle The plate 27 is squeezed, and the pressure sensor on the baffle plate 27 can send a signal. At this time, the automatic transfer component on the support platform 4 at the rear side of the conveying frame 1 immediately receives the signal to adsorb the suction heads intercepted on the baffle plate 27, which can screen the suction heads in different directions during the movement, and improve the accuracy of the suction head arrangement. Through the mutual cooperation of the automatic transfer components on the two support platforms 4, the suction heads in different directions during the movement can be adsorbed respectively and the tips of the suction heads can be inserted into the placement holes 17, so that the scattered suction heads can be quickly arranged, which can further improve the suction head arrangement efficiency;

[0045] When in use, the fourth motor 18 can drive the electric telescopic rod 5 to rotate on the support platform 4, and the electric telescopic rod 5 can drive the support frame 6 to slide up and down on the top of the conveying frame 1, the first motor 7 can drive the flip frame 8 to flip on the side wall of the support frame 6, so that the horizontally placed connecting tube 11 can be turned into a vertical direction, and the second motor 10 can drive the connecting tube 11 to rotate on the top of the conveying frame 1, so that the clamping frames 19 at different positions on the connecting tube 11 can be aligned with the corresponding suction heads one by one, and the air pump 9 at the top of the flip frame 8 can generate suction in the air hole 21, and the electromagnetic valve in the air hole 21 can be used to adsorb multiple suction heads one by one, and the adsorbed suction heads can be transferred to the top of the pipette tip rack 14. By adjusting the position of the clamping frame 19, the suction heads on the clamping frame 19 can be quickly and evenly stacked in the placement hole 17 at the top of the pipette tip rack 14, and the arrangement of the suction heads can be quickly completed. The two automatic transfer components cooperate with each other to improve the efficiency of the arrangement of the suction heads.

[0046] During the sorting process, after the third motor 12 is energized, the third motor 12 can drive the threaded screw 15 to rotate at the top of the support platform 4. At this time, the placement plate 13 can rotate along the threaded screw 15 through the threaded hole 24 at the center of the movable ring 23. At this time, the placement plate 13 can slide horizontally on the slide rail 16 through the slide slot frame 22. At this time, the pipette tip rack 14 clamped on the top of the placement plate 13 can slide on the support platform 4 with the placement plate 13. By controlling the rotation direction of the third motor 12, the sliding direction of the placement plate 13 can be controlled, which can facilitate the pipette tip rack 14 to gradually approach the automatic transfer component, and facilitate the automatic stacking of the tips.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic arrangement device for pipette tips, comprising a conveyor frame (1) and a PLC controller (25) on the conveyor frame (1), characterized in that: Support platforms (4) are fixedly installed on both sides of one end of the conveying frame (1), and automatic transfer components are arranged at the top of the support platforms (4), and the automatic transfer components on the two support platforms (4) are arranged in opposite directions. The automatic transfer component includes an electric telescopic rod (5) rotatably installed on the top of the support platform (4), and a fourth motor (18) is fixedly installed on the bottom end of the support platform (4), and the central axis of the fourth motor (18) is fixedly connected to the central axis of the electric telescopic rod (5). The top of the electric telescopic rod (5) is fixedly connected to a support frame (6), and an automatic arrangement component is arranged at the top of the conveying frame (1), and the two automatic transfer components periodically rotate at different positions at the top of the automatic arrangement component. The top of the support platform (4) is also provided with an automatic adjustment component, and the automatic adjustment component includes a pipette tip rack (14) arranged on the support platform (4), and the automatic adjustment component pushes the pipette tip rack (14) to continuously fit with the automatic arrangement component.

2. The automatic arrangement device for pipette tips according to claim 1, characterized in that: A first motor (7) is fixedly mounted on the edge of the top of the support frame (6); the output end of the first motor (7) is fixedly connected to a flip frame (8); the flip frame (8) is arranged in an L shape; a second motor (10) is fixedly mounted on the bottom wall of the flip frame (8); the output end of the second motor (10) is fixedly connected to a connecting tube (11); a plurality of clamping frames (19) are evenly connected and arranged on the outer wall of the connecting tube (11); air holes (21) are opened on the inner wall of the clamping frames (19); the plurality of clamping frames (19) are arranged in an arc shape, and the size of the clamping frames (19) is adapted to the size of the suction head.

3. The automatic arrangement device for pipette tips according to claim 2, characterized in that: An air pump (9) is fixedly mounted on the top of the turning frame (8), and an air guide pipe (20) is connected to the bottom of the air pump (9). The other end of the air guide pipe (20) is sleeved on the axis of the connecting tube (11), and the air guide pipe (20) is connected to the air hole (21) on the clamping frame (19).

4. The automatic arrangement device for pipette tips according to claim 1, characterized in that: The automatic arrangement component comprises a conveyor belt (2) rotatably mounted on the top of a conveyor frame (1); a driving motor (26) is fixedly mounted on the conveyor frame (1) for driving the conveyor belt (2) to move; two limit frames (3) are symmetrically mounted on the top of the conveyor frame (1), and the two limit frames (3) are both located above the conveyor belt (2).

5. The automatic arrangement device for pipette tips according to claim 4, characterized in that: The two limiting frames (3) are symmetrically arranged, the distance between the two limiting frames (3) located at the support platform (4) is slightly larger than the diameter of the suction head, the other end of the limiting frame (3) is inclined, and the included angle of the inner side of the limiting frame (3) is an obtuse angle.

6. The automatic arrangement device for pipette tips according to claim 5, characterized in that: A baffle (27) is fixedly mounted on the side walls of the two limit frames (3) near the support platform (4), and the thickness of the baffle (27) is less than the thickness of the limit frames (3). The bottom wall at the tip of the suction head is located above the baffle (27). A pressure sensor is also arranged on the inner side of the baffle (27), and the pressure sensor is electrically connected to the automatic transfer component on the upper side of the PLC controller (25).

7. The automatic arrangement device for pipette tips according to claim 1, characterized in that: The automatic adjustment component comprises a threaded screw (15) rotatably mounted on the top of a support platform (4); a third motor (12) fixedly mounted on the side wall of the support platform (4) and connected to the central axis of the threaded screw (15); a movable ring (23) is fixedly mounted on the bottom end of the pipette tip rack (14); a threaded hole (24) adapted to the threaded screw (15) is provided at the center of the movable ring (23).

8. The automatic arrangement device for pipette tips according to claim 7, characterized in that: The pipette tip rack (14) is movably clamped above the placement plate (13), and placement holes (17) adapted to the tips are evenly arranged at the top of the pipette tip rack (14).

9. The automatic arrangement device for pipette tips according to claim 8, characterized in that: A slide rail (16) is symmetrically fixedly installed on the top end of the support platform (4), and a slide slot frame (22) adapted to the slide rail (16) is symmetrically fixedly installed on the bottom end of the placement plate (13).

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