Magneton taking and placing device and experimental equipment

Abstract

The magneton taking and placing device comprises a supporting assembly, a mounting cylinder, a driving assembly, a mounting column and a magnetic part, one end of the mounting cylinder is connected with the supporting assembly, a taking and placing opening is formed in the end, away from the supporting assembly, of the mounting cylinder, and the radial size of the end, close to the supporting assembly, of the taking and placing opening is smaller than that of the end, away from the supporting assembly, of the taking and placing opening; a center hole is further formed in the mounting cylinder from the end connected with the supporting assembly to the end away from the supporting assembly; the driving assembly is mounted on the supporting assembly; the mounting column is connected with the driving assembly and can at least partially extend into the center hole; the magnetic part is connected with one end of the mounting column away from the driving assembly; the pick-and-place opening is used for containing the magneton, and the installation cylinder and the installation column are magnetic insulators. The operation of adsorbing the magneton at the pick-and-place opening or releasing the magneton from the pick-and-place opening to the stirring container can be achieved, manual intervention is not needed, the efficiency and the automation degree of equipment cannot be reduced, and the risk of personnel poisoning can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic equipment technical field, concretely relates to a kind of magnetic sub take and place device and experimental equipment. BACKGROUND

[0002] Magnetic stirrer is used for liquid mixing laboratory instrument, mainly for stirring or simultaneously heating stirring low viscidity liquid or solid-liquid mixture.Its basic principle is using the principle that same sex repels, unlike sex attracts, using magnetic field to promote the magnetic stirring sub (also called magnetic sub) placed in container to carry out circumferential operation, to reach the purpose of stirring liquid.

[0003] In automated experimental process, usually need to put magnetic sub into test tube and other containers in advance by artificial, then put into automated equipment to add powder and liquid, then carry out magnetic stirring.In the process of adding powder and liquid, the magnetic field of magnetic sub can cause interference to high-precision weighing balance, leading to unstable reading, affect the accuracy of experiment, so magnetic sub must be put into container after adding powder and liquid, to avoid that magnetic sub influences balance.If magnetic sub is added into container by artificial after adding powder and liquid, the automatic operation of equipment will be interrupted, the efficiency and automation degree of equipment will be reduced.In the experimental scene of toxic substance, personnel poisoning risk is also increased. SUMMARY

[0004] The utility model aims at providing a kind of magnetic sub take and place device and experimental equipment, solve the problems of reducing the efficiency and automation degree of equipment and increasing poisoning risk caused by artificial operation.

[0005] To achieve the purpose of the utility model, the utility model provides the following technical scheme:

[0006] Firstly, the utility model provides a kind of magnetic sub take and place device, comprising:

[0007] Supporting assembly;

[0008] Mounting cylinder, one end is connected with the supporting assembly, and the radially dimension of one end close to the supporting assembly is less than the radially dimension of one end away from the supporting assembly, and the mounting cylinder is also provided with central hole from one end connected with the supporting assembly to one end away from the supporting assembly;

[0009] Driving assembly, installed in the supporting assembly;

[0010] Mounting column, connected with the driving assembly, and can at least partially extend into the central hole;And

[0011] Magnetic piece, connected with one end of the mounting column away from the driving assembly;

[0012] The driving assembly is configured to drive the mounting column to move along the extension direction of the center hole of the mounting cylinder, so as to move the magnetic member close to or away from the taking and placing opening; the taking and placing opening is configured to accommodate a magnetic object, the minimum radial dimension of the taking and placing opening is smaller than the maximum radial dimension of the magnetic object, and the maximum radial dimension of the taking and placing opening is greater than the maximum radial dimension of the magnetic object; the mounting cylinder and the mounting column are both magnetic insulators.

[0013] In one embodiment, the radial dimension of the taking and placing opening gradually increases from the end close to the support assembly to the end away from the support assembly.

[0014] In one embodiment, the taking and placing opening comprises a positioning cavity and an opening cavity, the positioning cavity is located at the side of the opening cavity close to the support assembly, one end of the opening cavity is open at the end face of the mounting cylinder away from the support assembly, the other end of the opening cavity is open and communicates with the opening of the positioning cavity, and the radial dimension of the opening cavity gradually increases from the end close to the support assembly to the end away from the support assembly.

[0015] In one embodiment, the radial dimension of the positioning cavity is smaller than the maximum radial dimension of the magnetic object, and the radial dimension of the positioning cavity is greater than the minimum radial dimension of the magnetic object; the radial dimension of the positioning cavity is smaller than or equal to the radial dimension of the opening of the end of the opening cavity communicating with the positioning cavity.

[0016] In one embodiment, the positioning cavity communicates with the center hole; the radial dimension of the positioning cavity is smaller than the radial dimension of the magnetic member.

[0017] In one embodiment, the mounting cylinder comprises a partition plate, the partition plate separates the center hole and the positioning cavity.

[0018] In one embodiment, the center hole communicates with the taking and placing opening, the minimum radial dimension of the taking and placing opening is greater than or equal to the radial dimension of the center hole; the driving assembly is further configured to drive the magnetic member to extend out of the taking and placing opening from the center hole through the mounting column.

[0019] In one embodiment, the mounting cylinder comprises a connecting cylinder, a sleeve and a guide cylinder, one end of the connecting cylinder is connected with the support assembly, the other end of the connecting cylinder is connected with the sleeve, the guide cylinder is connected with the end of the sleeve away from the connecting cylinder, the connecting cylinder and the sleeve enclose the center hole, and the guide cylinder encloses the taking and placing opening.

[0020] In one embodiment, the extension direction of the outer circumferential surface of the sleeve is consistent with the extension direction of the outer circumferential surface of the guide cylinder; or

[0021] The outer circumferential surface of the sleeve has an angle with the extending direction of the outer circumferential surface of the guide cylinder, and the radial dimension of the outer circumferential surface of the guide cylinder gradually increases from the end close to the support assembly to the end away from the support assembly.

[0022] In one embodiment, the magnetic particle taking and placing device further comprises an adapter, one end of the adapter is connected with the support assembly, and the other end of the adapter is detachably connected with the connecting cylinder, the adapter has a communication hole, the communication hole is in communication with the central hole, and at least part of the mounting column extends into the central hole through the communication hole.

[0023] In one embodiment, the support assembly comprises a bottom plate, the mounting cylinder is connected with the bottom plate, the bottom plate is provided with a through hole, the through hole is in communication with the central hole, and the driving assembly or the mounting column penetrates through the through hole;

[0024] The support assembly further comprises a connecting plate and a top plate, the top plate is oppositely spaced apart from the bottom plate, the connecting plate is connected between the bottom plate and the top plate, the driving assembly comprises a driving member and an output shaft, the driving member is mounted on at least one of the bottom plate, the top plate and the connecting plate, the output shaft is connected with the mounting column, and the driving member is used to drive the output shaft to move to drive the mounting column to move.

[0025] In one embodiment, the magnetic particle taking and placing device further comprises an inductor, the inductor is arranged on the top plate and / or the connecting plate, and the inductor is used to detect the position of the output shaft.

[0026] In one embodiment, the magnetic particle taking and placing device further comprises a quick-change joint, the quick-change joint is connected with any one or more of the bottom plate, the top plate and the connecting plate, and the quick-change joint is used to be detachably connected with a carrying device.

[0027] In a second aspect, the utility model further provides an experimental equipment, including magnetic particle placement position, stirring container and the magnetic particle taking and placing device of any one of various embodiments in the first aspect, the magnetic particle taking and placing device is used for taking magnetic particle from the magnetic particle placement position, and is used for putting magnetic particle into the stirring container.

[0028] In one embodiment, the experimental equipment further comprises a carrying device, the carrying device is connected with the magnetic particle taking and placing device, and is used to drive the magnetic particle taking and placing device to move.

[0029] The taking and placing opening and the center hole are arranged by the mounting cylinder, the mounting column and the magnetic member are driven by the driving assembly to move in the center hole, so that the magnetic member can move close to and away from the taking and placing opening, the magnetic attraction force of the magnetic member and the gravity of the magnet are interacted, the operation of adsorbing the magnet in the taking and placing opening or releasing the magnet from the taking and placing opening is realized, manual intervention is not needed, the automatic operation of the equipment is not interrupted, and the working efficiency and the automation degree of the equipment are not reduced; in addition, when used in the experimental scene of toxic substances, the risk of poisoning of personnel can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a perspective view of the magnet taking and placing device of the first embodiment;

[0032] Figure 2 is a perspective view of the magnet taking and placing device of the first embodiment from another viewing angle without the shell;

[0033] Figure 3 is a perspective view of the magnet taking and placing device of the first embodiment from another viewing angle without the shell;

[0034] Figure 4 is a sectional view and a local enlarged view of the magnet taking and placing device of the first embodiment;

[0035] Figure 5 is a perspective view of the magnet taking and placing device of the second embodiment;

[0036] Figure 6 is a sectional view and a local enlarged view of the magnet taking and placing device of the second embodiment in one state;

[0037] Figure 7 is a sectional view of the magnet taking and placing device of the second embodiment in another state.

[0038] Explanation of reference signs:

[0039] 100-magnet taking and placing device; 200-magnet;

[0040] 10-supporting assembly, 11-bottom plate, 111-through hole, 12-connecting plate, 13-top plate, 14-sliding rail, 15-sliding block;

[0041] 20 - mounting cylinder, 21 - taking and placing opening, 211 - aligning cavity, 212 - opening cavity, 22 - center hole, 23 - partition plate, 24 - connecting cylinder, 241 - mounting hole, 25 - sleeve, 26 - guide cylinder, 27 - center line;

[0042] 30 - driving assembly, 31 - driving member, 32 - output shaft;

[0043] 40 - mounting column;

[0044] 51 - magnetic member, 52 - circuit mounting plate, 53 - circuit board, 54 - inductor;

[0045] 60 - shell, 61 - heat dissipation hole;

[0046] 70 - quick change joint;

[0047] 80 - adapter, 81 - communication hole, 82 - mounting part, 83 - connecting part. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0049] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be an intervening component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be an intervening component.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0051] Some embodiments of the present application will be described in detail below with reference to the drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0052] First embodiment

[0053] Please refer to Figures 1 to 4The embodiment provides a magnetic sub taking and placing device 100, which comprises a support assembly 10, a mounting cylinder 20, a driving assembly 30, a mounting column 40 and a magnetic piece 51.

[0054] The support assembly 10 is used as a structural support and a mounting base, and the shape and structure of the support assembly 10 are not limited.

[0055] The mounting cylinder 20 is generally in a cylindrical shape extending along a straight line, and the cross-sectional shape of the outer periphery of the mounting cylinder 20 can be circular, polygonal or the like. One end of the mounting cylinder 20 in the length direction is connected to the support assembly 10, and the connection mode can be any feasible mode such as screwing, clamping or the like, and is not limited.

[0056] The mounting cylinder 20 has a center line 27 extending along the length direction thereof, and the radial dimension refers to the dimension in the direction perpendicular to the center line 27 through the center line 27 of the mounting cylinder 20, and the radial dimension in the following is defined in the same way and will not be repeated. When the cross-sectional shape of the outer periphery of the mounting cylinder 20 is circular, the center line 27 is the axis of the outer periphery.

[0057] One end of the mounting cylinder 20 away from the support assembly 10 in the length direction is provided with a taking and placing opening 21, and the taking and placing opening 21 is used for accommodating a magnetic sub 200. The magnetic sub 200 can be a structure in which a permanent magnet is wrapped with polytetrafluoroethylene or glass on the outside. The taking and placing opening 21 can be generally in a rotational symmetry structure around the center line 27 of the mounting cylinder 20, for example, the profile of the inner wall of the taking and placing opening 21 is generally in a circular truncated cone shape, a bowl shape, a funnel shape or the like, and of course, the taking and placing opening 21 can also be in other shapes. The radial dimension of one end of the taking and placing opening 21 close to the support assembly 10 is smaller than the radial dimension of one end of the taking and placing opening 21 away from the support assembly 10, so that the opening of the taking and placing opening 21 (i.e., one end of the taking and placing opening 21 away from the support assembly 10) is larger, so that the magnetic sub 200 enters the taking and placing opening 21 through the larger opening, and the inside of the taking and placing opening 21 far from the opening (i.e., one end of the taking and placing opening 21 close to the support assembly 10) is smaller. When the mounting cylinder 20 extends in a vertical direction, the magnetic sub 200 entering the taking and placing opening 21 can tend to be in a vertical state, so as to improve the success rate of releasing the magnetic sub 200 into a stirring container.

[0058] The mounting cylinder 20 is also provided with a center hole 22 from one end connected to the support assembly 10 to one end away from the support assembly 10. The center hole 22 also extends along the straight line extension direction of the mounting cylinder 20, the center hole 22 is surrounded by the inner periphery of the mounting cylinder 20, and the cross-sectional shape of the inner periphery of the mounting cylinder 20 can also be circular, polygonal or the like. When the cross-sectional shape of the inner periphery of the mounting cylinder 20 is circular, the axis of the inner periphery can coincide with the center line 27 of the mounting cylinder 20. It can be understood that the cross-sectional shapes of the outer periphery and the inner periphery of the mounting cylinder 20 can both be circular, both be polygonal, or one be circular and the other be polygonal, and are not limited.

[0059] The driving assembly 30 is mounted on the supporting assembly 10. The driving assembly 30 can be any feasible structure such as a motor driving structure, a cylinder driving structure, a hydraulic cylinder driving structure, etc., without limitation. The driving assembly 30 can be mounted on any feasible position of the supporting assembly 10 by any feasible means such as screwing, clamping, etc., without limitation.

[0060] The mounting column 40 is connected with the driving assembly 30 and can at least partially extend into the central hole 22. The mounting column 40 is substantially a column extending in a straight line, and the cross-sectional shape thereof can be circular, polygonal, etc. The mounting column 40 can have a spacing with the inner wall of the central hole 22, or can be in contact with and slideable relative to at least part of the inner wall of the central hole 22, without limitation.

[0061] The magnetic member 51 is connected with the end of the mounting column 40 away from the driving assembly 30. The magnetic member 51 can be a permanent magnet, an electromagnet, etc., without limitation. The shape, structure, etc. of the magnetic member 51 are not limited. The magnetic member 51 can be connected with the mounting column 40 by any feasible means such as screwing, clamping, etc. The magnetic member 51 can be connected on the end face of the mounting column 40, or can be embedded in a slot opened on the end face of the mounting column 40, without limitation. The size of the magnetic member 51 is smaller than the size of the central hole 22, so that the magnetic member 51 can move in the central hole 22.

[0062] The driving assembly 30 is used to drive the mounting column 40 to move in the central hole 22 along the extension direction of the mounting cylinder 20, so as to make the magnetic member 51 approach or move away from the taking and placing opening 21. The minimum radial size of the taking and placing opening 21 is smaller than the maximum radial size of the magnetic particle 200, and the maximum radial size of the taking and placing opening 21 is greater than the maximum radial size of the magnetic particle 200. The above sizes of the taking and placing opening 21 are set so that the magnetic particle 200 is facilitated to enter the taking and placing opening 21 from the opening thereof, and the magnetic particle 200 tends to be in a vertical state in the taking and placing opening 21, so as to improve the success rate of placing the magnetic particle 200 into the stirring container.

[0063] The mounting cylinder 20 and the mounting column 40 are both magnetic insulators, which can be made of plastic, glass, ceramic, non-magnetic metal (such as stainless steel, aluminum, aluminum alloy, etc.), etc., without limitation. In this way, the magnetic attraction force of the magnetic member 51 and the magnetic particle 200 is avoided from being interfered, so as to ensure that the magnetic member 51 can attract the magnetic particle 200 in the taking and placing opening 21 by the magnetic attraction force when the magnetic member 51 approaches the taking and placing opening 21, and the magnetic particle 200 can fall under the action of gravity when the magnetic member 51 moves away from the taking and placing opening 21 by a distance and the magnetic attraction force of the magnetic member 51 on the magnetic particle 200 is smaller than the gravity of the magnetic particle 200. The mounting column 40 made of non-magnetic material is connected with the driving assembly 30, so that the magnetic member 51 can be as far away from the driving assembly 30 as possible, and the magnetic field is avoided from affecting the driving assembly 30.

[0064] When the magnetic particles 200 are taken from the magnetic particle placement position (not shown), the installation cylinder 20 moves to the position close to the magnetic particle placement position, the driving assembly 30 drives the installation column 40 to move and gradually approach the taking and placing opening 21, the magnetic force of the magnetic member 51 to the magnetic particles 200 placed in the magnetic particle placement position gradually increases and is greater than the gravity of the magnetic particles 200, and the magnetic particles 200 are adsorbed into the taking and placing opening 21 under the action of the magnetic member 51.

[0065] When the magnetic particles 200 are placed into the stirring container (not shown), the installation column 40 is at the position close to the taking and placing opening 21, and the magnetic member 51 is kept at the position where the magnetic force to the magnetic particles 200 is greater than the gravity of the magnetic particles 200, so that the magnetic particles 200 are kept in the taking and placing opening 21 under the action of the magnetic force of the magnetic member 51. The installation cylinder 20 and the stirring container are relatively moved, and the taking and placing opening 21 is moved to the opening of the stirring container, the driving assembly 30 drives the installation column 40 to move and gradually move away from the taking and placing opening 21, the magnetic force of the magnetic member 51 to the magnetic particles 200 gradually decreases and is less than the gravity of the magnetic particles 200, and the magnetic particles 200 fall into the stirring container through the opening of the stirring container under the action of the gravity.

[0066] The stirring container can be a reagent bottle, a beaker, a test tube, etc., without limitation. The stirring container can be placed in a magnetic field environment, and the stirring container has been pre-filled with a liquid or a solid-liquid mixture. The magnetic particles 200 can be placed into the stirring container without stopping the operation of the equipment. The magnetic particles 200 perform circular motion in the stirring container under the action of the magnetic field environment, so as to achieve the purpose of stirring the liquid.

[0067] In the embodiment, the taking and placing opening 21 and the center hole 22 are arranged on the installation cylinder 20, the installation column 40 and the magnetic member 51 are driven by the driving assembly 30 to move in the center hole 22, so that the magnetic member 51 can move close to and away from the taking and placing opening 21. Through the interaction between the magnetic force of the magnetic member 51 to the magnetic particles 200 and the gravity of the magnetic particles 200, the magnetic particles 200 are adsorbed in the taking and placing opening 21 or released from the taking and placing opening 21 to the stirring container, without manual intervention, without interrupting the automatic operation of the equipment, without reducing the efficiency and automation degree of the equipment. In addition, when used in the experimental scene of toxic substances, the risk of poisoning of personnel can be avoided.

[0068] Optionally, referring to Figure 4 The radial dimension of the taking and placing opening 21 gradually increases from one end close to the support assembly 10 to the other end away from the support assembly 10.

[0069] In this way, at least part of the taking and placing opening 21 is flared, and the inner side wall of the flared part is inclined relative to the center line 27 of the mounting cylinder 20. This can guide the magnetic particles 200 to slide along the inclined inner side wall after entering the taking and placing opening 21, so as to adjust the posture of the magnetic particles 200. In this way, the length direction of the magnetic particles 200 is not perpendicular to the direction of the center line 27 of the mounting cylinder 20, which is beneficial to the release of the magnetic particles 200 into the stirring container through a small opening of the stirring container.

[0070] Optionally, the part of the taking and placing opening 21 that is flared is connected to the end face of the mounting cylinder 20 away from the support assembly 10, so as to maximize the radial dimension of the opening of the taking and placing opening 21 to facilitate the entry of the magnetic particles 200 into the taking and placing opening 21.

[0071] In a specific embodiment, as shown in Figure 4 , the taking and placing opening 21 includes a positioning cavity 211 and an opening cavity 212. The positioning cavity 211 is located on the side of the opening cavity 212 close to the support assembly 10. One end of the opening cavity 212 is open at the end face of the mounting cylinder 20 away from the support assembly 10. The other end of the opening cavity 212 is open and communicates with the opening of the positioning cavity 211. The radial dimension of the opening cavity 212 gradually increases from the end close to the support assembly 10 to the end away from the support assembly 10.

[0072] The positioning cavity 211 can extend along the length direction of the mounting cylinder 20. Optionally, the positioning cavity 211 can have a structure with a substantially constant radial dimension. Alternatively, the positioning cavity 211 can have a structure with a maximum radial dimension at the end connected to the opening cavity 212, and gradually decreasing in the direction towards the support assembly 10. In addition, the inclination angle of the inner side wall of the positioning cavity 211 relative to the center line 27 of the mounting cylinder 20 is smaller than the inclination angle of the inner side wall of the opening cavity 212 relative to the center line 27 of the mounting cylinder 20, i.e., the flaring degree of the positioning cavity 211 is smaller than the flaring degree of the opening cavity 212.

[0073] The radial dimension of the opening cavity 212 gradually increases from the end close to the support assembly 10 to the end away from the support assembly 10, so that the opening cavity 212 is more conducive to the entry and guidance of the magnetic particles 200. The positioning cavity 211 can accommodate at least part of the magnetic particles 200, so that the magnetic particles 200 can partially extend into the positioning cavity 211 after being guided, thereby improving the capacity of the taking and placing opening 21 to accommodate the magnetic particles 200, and achieving a better effect of adjusting the posture of the magnetic particles 200, which is beneficial to the easier release of the magnetic particles 200 into the stirring container.

[0074] Optionally, the radial dimension of the positioning cavity 211 is smaller than the maximum radial dimension of the magnetic particles 200, and the radial dimension of the positioning cavity 211 is greater than the minimum radial dimension of the magnetic particles 200. Optionally, the radial dimension of the positioning cavity 211 is smaller than or equal to the radial dimension of the opening of the end of the opening cavity 212 communicating with the positioning cavity 211.

[0075] In this embodiment, the magnetic particle 200 is generally in the shape of a capsule pill, with a length dimension greater than a radial dimension, and the two ends in the length direction are gradually reduced in radial dimension (C type); or, on the basis of this structure, a structure with a hoop in the middle (B type), as shown in Figure 4 The size relationship between the above-mentioned alignment cavity 211 and the magnetic particle 200 and the size relationship between the alignment cavity 211 and the opening cavity 212 can make the part of the end of the magnetic particle 200 with a smaller radial dimension enter the alignment cavity 211, and the alignment cavity 211 can correct the posture of the magnetic particle 200, so that the length direction of the magnetic particle 200 is generally in the same direction as the length direction of the mounting cylinder 20, for example, the posture of the magnetic particle 200 can be adjusted to be generally vertical, which is more conducive to releasing the magnetic particle 200 into the stirring container. In addition, part of the magnetic particle 200 enters the alignment cavity 211, so that the distance between the magnetic particle 200 and the magnetic member 51 is closer, and the adsorption force between them is greater, which can avoid the magnetic particle 200 from falling in the middle of the transfer. It can be understood that the size of the alignment cavity 211 and the opening cavity 212 can be determined based on the model and size of the magnetic particle 200, and no specific limitation is made.

[0076] Optionally, the alignment cavity 211 and the opening cavity 212 are smoothly connected, so that the magnetic particle 200 entering the opening cavity 212 can quickly enter the alignment cavity 211.

[0077] Optionally, referring to Figure 4 The mounting cylinder 20 includes a partition plate 23, which separates the central hole 22 and the alignment cavity 211. The partition plate 23 can be independently provided or integrated with other parts of the mounting cylinder 20, which is not limited. The partition plate 23 separates the central hole 22 and the alignment cavity 211, so that the central hole 22 is not in communication with the external space near the taking and placing opening 21, avoiding the splashed liquid or solid entering the central hole 22 through the opening cavity 212 and the alignment cavity 211, so that the mounting column 40 and the magnetic member 51 can move in a stable environment, and also avoiding the central hole 22 remaining liquid or solid to cause cross contamination of multiple experiments.

[0078] Another option, referring to Figure 4The alignment cavity 211 is connected to the central hole 22. Compared to the embodiment with a partition plate 23, the alignment cavity 211 in this embodiment is connected to the central hole 22, allowing the magnetic component 51 to apply magnetic attraction to the magnetic piece 200 without obstruction. With the same magnetic attraction requirement, the magnetic component 51 can be made smaller, thereby reducing the size of the mounting cylinder 20 and the mounting post 40, making the device more compact. With the same size magnetic component 51, the magnetic component 51 has a greater attraction force on the magnetic piece 200, making the magnetic piece 200 more stable when housed in the pick-and-place port 21. Optionally, the radial dimension of the alignment cavity 211 is smaller than the radial dimension of the magnetic component 51. This design prevents the magnetic component 51 from protruding through the alignment cavity 211, reducing the risk of contamination. Furthermore, the radial dimension of the alignment cavity 211 is smaller than the maximum radial dimension of the magnetic piece 200, and larger than the minimum radial dimension of the magnetic piece 200. This design prevents the magnetic element 200 from moving upwards along with the magnetic element 51 due to magnetic attraction, thus preventing the magnetic element 200 from being released.

[0079] In one embodiment, reference Figures 1 to 4 The mounting cylinder 20 includes a connecting cylinder 24, a sleeve 25, and a guide cylinder 26. One end of the connecting cylinder 24 is connected to the support assembly 10, and the other end of the connecting cylinder 24 is connected to the sleeve 25. The guide cylinder 26 is connected to the end of the sleeve 25 away from the connecting cylinder 24. The connecting cylinder 24 and the sleeve 25 enclose the central hole 22, and the guide cylinder 26 encloses the loading and unloading port 21.

[0080] The outer diameter of the connecting sleeve 24 can be larger than that of the sleeve 25, causing the connecting sleeve 24 to protrude from the outer circumferential surface of the sleeve 25. The thickness of the connecting sleeve 24 can be increased to improve its strength and rigidity. Alternatively, a connecting structure such as a mounting hole 241 can be provided on the portion of the connecting sleeve 24 protruding from the outer circumferential surface of the sleeve 25, allowing the connecting sleeve 24 to be connected to the support assembly 10 via screws or similar components that engage with the mounting hole 241. The inner diameters of the connecting sleeve 24 and the sleeve 25 are equal and flush, ensuring that the radial dimension of the central hole 22 is consistent across both the connecting sleeve 24 and the sleeve 25. This facilitates the machining of the central hole 22 and avoids interference with the movement of the mounting post 40. The outer diameter of the connecting sleeve 24 can also be equal to the outer diameter of the sleeve 25 for easier machining.

[0081] Optionally, the extending direction of the outer peripheral surface of the sleeve 25 is consistent with the extending direction of the outer peripheral surface of the guide cylinder 26. Preferably, the outer diameter of the guide cylinder 26 can be equal to and flush with the outer diameter of the sleeve 25, so that the sleeve 25 and the guide cylinder 26 have the same shape, which facilitates processing and manufacturing. The partition plate 23 in the above embodiment can be connected to the inner wall of the guide cylinder 26 to separate the pick-up and put-out port 21 and the central hole 22. Alternatively, the outer diameter of the guide cylinder 26 can be larger than the outer diameter of the sleeve 25, so that there is more space for the pick-up and put-out port 21 to be opened.

[0082] Alternatively, the guide cylinder 26 can have other shapes and structures, without limitation.

[0083] The connecting cylinder 24, the sleeve 25 and the guide cylinder 26 can be integrally formed, for example, by machining a columnar raw material; alternatively, the connecting cylinder 24, the sleeve 25 and the guide cylinder 26 can be integrally formed, and the remaining one is connected and fixed to the first two by any feasible manner (such as screwing, clamping, gluing, welding, etc.); alternatively, the connecting cylinder 24, the sleeve 25 and the guide cylinder 26 are all connected and fixed by any feasible manner, without limitation.

[0084] In one embodiment, referring to Figures 1 to 4 , the support assembly 10 includes a bottom plate 11, the mounting cylinder 20 is connected to the bottom plate 11, the bottom plate 11 is provided with a through hole 111, the through hole 111 is in communication with the central hole 22, and the driving assembly 30 is arranged in the through hole 111.

[0085] In this embodiment, the bottom plate 11 can be a flat plate, and the mounting cylinder 20 can be connected and fixed to one side surface of the bottom plate 11 by screwing, clamping or the like. At least part of the driving assembly 30 is arranged in the through hole 111, and part of the driving assembly 30 can also extend into the central hole 22. In this way, the through hole 111 and the central hole 22 can accommodate part of the structure of the driving assembly 30, so as to reduce the size of the overall device in the length direction of the mounting cylinder 20, so that the structure of the device is more compact and small.

[0086] In another embodiment, the driving assembly 30 does not extend into the through hole 111, but the mounting column 40 is arranged in the through hole 111 and extends into the central hole 22, and the mounting column 40 can also drive the magnetic member 51 to move in the central hole 22.

[0087] Alternatively, referring to Figures 1 to 4 , the support assembly 10 further includes a connecting plate 12 and a top plate 13, the top plate 13 is arranged in opposite and spaced apart relationship with the bottom plate 11, and the connecting plate 12 is connected between the bottom plate 11 and the top plate 13. The driving assembly 30 includes a driving member 31 and an output shaft 32, the driving member 31 is mounted on at least one of the bottom plate 11, the top plate 13 and the connecting plate 12, and the output shaft 32 is connected to the mounting column 40, and the driving member 31 is used to drive the output shaft 32 to move to drive the mounting column 40 to move.

[0088] In a specific embodiment, referring to Figure 2 and Figure 4The driving member 31 is a linear stepper motor. The driving member 31 is installed on the surface of the bottom plate 11 away from the mounting cylinder 20, and the driving member 31 penetrates the through hole 111 and extends into the central hole 22. The output shaft 32 penetrates the driving member 31 and extends along the length direction of the mounting cylinder 20. The mounting column 40 is accommodated in the central hole 22 and connected with one end of the output shaft 32. The connection mode can be clamping, screwing or the like. The linear stepper motor can drive the output shaft 32 to move along the length direction of the mounting cylinder 20, so as to drive the mounting column 40 and the magnetic member 51 to move.

[0089] It can be understood that the driving member 31 can also be a pneumatic cylinder, a hydraulic cylinder or the like, which can drive the output shaft 32 to move and further drive the mounting column 40 to move. The driving member 31 can also be arranged at any feasible position of the top plate 13, the connecting plate 12 or the like, without limitation. The driving member 31 can also be connected with at least two of the bottom plate 11, the connecting plate 12 and the top plate 13 at the same time, so as to improve the connection stability.

[0090] Optionally, the connecting plate 12 can be provided with one or more plates, for example, Figures 1 to 4 In the first embodiment shown, the connecting plate 12 is provided with two plates. The two connecting plates 12 are arranged in relative spacing and connected with the bottom plate 11 and the top plate 13 respectively. The driving member 31 is arranged between the two connecting plates 12. The two connecting plates 12 play a role of enhancing the structural stability of the support assembly 10 and protecting the driving member 31.

[0091] Optionally, referring to Figure 2 and Figure 3 , the magnetic element taking and placing device 100 further comprises a circuit mounting plate 52 and a plurality of circuit boards 53. The circuit mounting plate 52 is connected with the support assembly 10, and the circuit boards 53 are mounted on the circuit mounting plate 52. Specifically, the circuit mounting plate 52 can be mounted on the connecting plate 12, for example, the circuit mounting plate 52 is connected with the two connecting plates 12 and located on one side or both sides of the driving member 31. The circuit boards 53 can be electrically connected with the driving member 31, used for outputting control signals or receiving feedback signals of the driving member 31, so as to accurately control the working state of the driving member 31 and realize accurate control of the movement of the magnetic member 51.

[0092] Optionally, referring to Figure 1 and Figure 4 , the magnetic element taking and placing device 100 further comprises a housing 60. The housing 60 is connected with the aforementioned bottom plate 11 and top plate 13 and surrounds the structures between the bottom plate 11 and the top plate 13. The housing 60 can be provided with heat dissipation holes 61 or the like, without specific limitation.

[0093] Optionally, referring to Figure 2 and Figure 4The magnetic element taking and placing device 100 further comprises a sensor 54 arranged on the top plate 13 and / or the connecting plate 12, and the sensor 54 is used to detect the position of the output shaft 32.

[0094] The sensor 54 can be any feasible sensor, camera or the like capable of detecting the position, which can be installed on the top plate 13, the connecting plate 12 or the like by any feasible way such as screwing, clamping or the like, without limitation. The sensor 54 can be arranged one or more, and used to detect at least one movement position of the output shaft 32, such as the zero return position of the output shaft 32, the first working position of the output shaft 32 (such as the position capable of enabling the magnetic element 51 to be adsorbed to the magnetic element 200), the second working position of the output shaft 32 (such as the position capable of enabling the magnetic element 200 to be separated from the adsorption force of the magnetic element 51) and the like.

[0095] In the first embodiment, referring to Figure 4 The sensor 54 is arranged on the surface of the top plate 13 facing the bottom plate 11, and is arranged opposite to the output shaft 32, and the sensor 54 is further electrically connected with the aforementioned circuit board 53, and the sensor 54 can input or receive signals through the circuit board 53. For example, the sensor 54 is a photoelectric sensor, and when the sensor 54 detects the output shaft 32 (one end of the output shaft 32 is inserted into the sensor 54), it indicates that the output shaft 32 has returned to zero.

[0096] The signal of the position of the output shaft 32 detected by the sensor 54 can be used to control the running state of the driving element 31, and further control the position of the movement of the magnetic element 51, which is not limited in detail.

[0097] Optionally, referring to Figures 1 to 4 The magnetic element taking and placing device 100 further comprises a quick-change connector 70, and the quick-change connector 70 is connected with any one or more of the bottom plate 11, the top plate 13 and the connecting plate 12, and the quick-change connector 70 is used to be detachably connected with a carrying device (not shown).

[0098] The specific structure of the quick-change connector 70 is not limited, and any feasible way such as screwing, clamping or the like can be used to connect and fix the quick-change connector 70 with any one or more of the bottom plate 11, the top plate 13 and the connecting plate 12. In the first embodiment, referring to Figures 1 to 4 The quick-change connector 70 is connected with the surface of the top plate 13 away from the bottom plate 11.

[0099] The carrying device can be a mechanical arm, an XYZ three-axis moving platform, or any other feasible structure. The carrying device can also be provided with a quick-change connector. For example, the quick-change connector 70 on the magnetic element taking and placing device 100 is a quick-change male connector, and the quick-change connector on the carrying device is a quick-change female connector, or vice versa. The quick-change connector 70 can be of a pneumatic type, a hydraulic type, a magnetic type, or the like, and is not limited in this regard. The quick-change connector of the carrying device and the quick-change connector 70 on the magnetic element taking and placing device 100 can be quickly installed and detached. After the carrying device and the quick-change connector 70 are installed, the magnetic element taking and placing device 100 can be moved to achieve the taking and placing of the magnetic element 200.

[0100] In other embodiments, the quick-change connector 70 can not be provided, and the carrying device can be directly connected to the support assembly 10 (e.g., by screwing, clamping, or the like). In this way, the carrying device can also move the magnetic element taking and placing device 100.

[0101] Second Embodiment

[0102] Reference Figures 5 to 7 The second embodiment also provides a magnetic element taking and placing device 100, which is basically the same as the magnetic element taking and placing device 100 of the first embodiment, and the difference will be described below.

[0103] Reference Figure 6 The radial dimension of the taking and placing opening 21 gradually increases from the end close to the support assembly 10 to the end away from the support assembly 10. The taking and placing opening 21 can be provided with only the opening cavity 212 and not provided with the positioning cavity 211. Compared with the scheme of providing the positioning cavity 211 in the first embodiment, the depth (i.e., the dimension along the length direction of the mounting cylinder 20) of the opening cavity 212 in this embodiment can be appropriately increased to make the magnetic element 200 entering the opening cavity 212 tend to be in a vertical state as much as possible. The opening cavity 212 can be in communication with or not in communication with the central hole 22 of the mounting cylinder 20, and is not limited in this regard.

[0104] Optionally, as shown in Figure 6 the central hole 22 of the mounting cylinder 20 is in communication with the taking and placing opening 21, and the minimum radial dimension of the taking and placing opening 21 is greater than or equal to the radial dimension of the central hole 22; and the driving assembly 30 is further configured to drive the magnetic element 51 to extend from the central hole 22 to the outside of the taking and placing opening 21 through the mounting column 40.

[0105] In this embodiment, the center hole 22 of the mounting cylinder 20 is in communication with the taking and placing opening 21, and similar to the first embodiment, the partition plate 23 is removed, which can increase the magnetic attraction force of the magnetic member 51 to the magnetic sub 200 or reduce the size of the magnetic member 51. In addition, the mounting column 40 can drive the magnetic member 51 to extend from the taking and placing opening 21 to the outside, which can more easily suck the magnetic sub 200 from the magnetic sub placing position. The same as the first embodiment, the size of the taking and placing opening 21 and the magnetic sub 200 is the same as or similar to the first embodiment. For example, the minimum radial dimension of the taking and placing opening 21 is smaller than the minimum radial dimension of the magnetic sub 200, and the maximum radial dimension of the taking and placing opening 21 is larger than the maximum radial dimension of the magnetic sub 200, which is arranged in such a way that the magnetic sub 200 can only be accommodated in the taking and placing opening 21 and cannot enter the center hole 22 from the taking and placing opening 21, so as to avoid the magnetic sub 200 from moving upward with the magnetic member 51. Alternatively, the minimum radial dimension of the taking and placing opening 21 is smaller than the maximum radial dimension of the magnetic sub 200 and larger than the minimum radial dimension of the magnetic sub 200, and the maximum radial dimension of the taking and placing opening 21 is larger than the maximum radial dimension of the magnetic sub 200, which is arranged in such a way that the magnetic sub 200 can be accommodated in the taking and placing opening 21, and part of the magnetic sub 200 can also enter the center hole 22 from the taking and placing opening 21, which not only shortens the distance between the magnetic sub 200 and the magnetic member 51, but also avoids the magnetic sub 200 from moving upward with the magnetic member 51.

[0106] Optionally, referring to Figures 5 to 7 , the mounting cylinder 20 also includes the connecting cylinder 24, the sleeve 25 and the guide cylinder 26 connected in sequence. The extension direction of the outer peripheral surface of the sleeve 25 has an angle with the extension direction of the outer peripheral surface of the guide cylinder 26, and the radial dimension of the outer peripheral surface of the guide cylinder 26 gradually increases from the end close to the support assembly 10 to the end away from the support assembly 10.

[0107] Different from the first embodiment, in this embodiment, the outer peripheral surface of the guide cylinder 26 is not parallel to the outer peripheral surface of the sleeve 25, but has an angle, so that the guide cylinder 26 is roughly in the shape of a bowl or a horn. Compared with the first embodiment, this embodiment is equivalent to increasing the radial dimension of the guide cylinder 26, so that when the magnetic sub 200 is sucked at the magnetic sub placing position, the magnetic sub 200 is more difficult to be adsorbed to the outer peripheral surface of the sleeve 25 or the guide cylinder 26, but is more likely to be accommodated in the taking and placing opening 21, and due to the adjustment of the posture of the magnetic sub 200 by the taking and placing opening 21, the magnetic sub 200 is more easily released into the stirring container. The same as the first embodiment, the size of the taking and placing opening 21 and the magnetic sub 200 is the same as or similar to the first embodiment. For example, the minimum radial dimension of the taking and placing opening 21 is smaller than the minimum radial dimension of the magnetic sub 200, and the maximum radial dimension of the taking and placing opening 21 is larger than the maximum radial dimension of the magnetic sub 200, which is arranged in such a way that the magnetic sub 200 can only be accommodated in the taking and placing opening 21 and cannot enter the center hole 22 from the taking and placing opening 21, so as to avoid the magnetic sub 200 from moving upward with the magnetic member 51. Alternatively, the minimum radial dimension of the taking and placing opening 21 is smaller than the maximum radial dimension of the magnetic sub 200 and larger than the minimum radial dimension of the magnetic sub 200, and the maximum radial dimension of the taking and placing opening 21 is larger than the maximum radial dimension of the magnetic sub 200, which is arranged in such a way that the magnetic sub 200 can be accommodated in the taking and placing opening 21, and part of the magnetic sub 200 can also enter the center hole 22 from the taking and placing opening 21, which not only shortens the distance between the magnetic sub 200 and the magnetic member 51, but also avoids the magnetic sub 200 from moving upward with the magnetic member 51.

[0108] Optionally, referring to Figures 5 to 7 The magnetic sub-taker 100 further comprises an adapter 80. One end of the adapter 80 is connected with the support assembly 10, and the other end of the adapter 80 is detachably connected with the connecting cylinder 24. The adapter 80 has a communication hole 81 which is in communication with the central hole 22, and at least part of the mounting column 40 extends into the central hole 22 through the communication hole 81.

[0109] In the first embodiment, the adapter 80 is not provided, and the connecting cylinder 24 is directly connected with the bottom plate 11. In the second embodiment, an adapter 80 is additionally provided, which can be connected and fixed with the bottom plate 11 by screwing, clamping or any other feasible way. The adapter 80 and the connecting cylinder 24 can be connected in a detachable manner by interference fit, screwing, clamping or the like. The communication hole 81 of the adapter 80 and the central hole 22 can have the same or different radial dimensions, which is not limited as long as the mounting column 40 can pass through the communication hole 81 and extend into the central hole 22.

[0110] Optionally, the adapter 80 comprises a mounting portion 82 and a connecting portion 83 in an integrated structure. The mounting portion 82 is connected and fixed with the bottom plate 11, and the connecting portion 83 connects the mounting portion 82 and the connecting cylinder 24. In a specific embodiment, the bottom plate 11 can be provided with a slot, the mounting portion 82 is accommodated in the slot, the connecting portion 83 is in the shape of a cylinder, the communication hole 81 penetrates through the mounting portion 82 and the connecting portion 83, and the outer peripheral surface of the connecting portion 83 is interference-fitted with the inner peripheral wall of the connecting cylinder 24.

[0111] By providing the adapter 80, different mounting cylinders 20 can be replaced for different types of stirring containers or magnetic subs 200. The mounting cylinder 20 only needs to be detachably connected with the adapter 80, and does not need to be connected with the support assembly 10 in a complex manner, so that the installation process can be simplified and rapid replacement can be realized.

[0112] Optionally, referring to Figures 5 to 7 The driving member 31 is installed on the surface of the top plate 13 away from the bottom plate 11, and the output shaft 32 is connected with the mounting column 40 through the top plate 13. Further, the connecting plate 12 is provided with a sliding rail 14, the sliding rail 14 is provided with a sliding block 15, the sliding block 15 is slidingly connected with the sliding rail 14, one end of the output shaft 32 away from the driving member 31 is connected with one end of the sliding block 15 toward the driving member 31, and one end of the sliding block 15 away from the driving member 31 is connected with the mounting column 40, which can be connected by screwing, clamping or the like. The driving member 31 can drive the output shaft 32 to move, and then drive the sliding block 15 to slide on the sliding rail 14, and then drive the mounting column 40 to move, so as to drive the magnetic member 51 to move. By providing the sliding rail 14 and the sliding block 15, the sliding rail 14 can guide and stabilize the sliding block 15, and the stability of the device movement can be improved.

[0113] The connecting plate 12 of the second embodiment can be provided only one, the bottom plate 11 can be provided as a structure protruding from the outer surface of the shell 60, and the quick-change connector 70 can be provided on the part of the bottom plate 11 protruding from the outer surface of the shell 60. The second embodiment can also be provided with an inductor 54, which can also be provided at any feasible position of the connecting plate 12, the top plate 13, etc., without limitation. For example, the inductor 54 is provided on the connecting plate 12, and the output shaft 32 is provided with a sensing sheet. When the inductor 54 detects the sensing sheet, it can indicate that the output shaft 32 moves to the target position (such as the zero position, the first working position or the second working position).

[0114] Other related features in the embodiments of the utility model can be referred to the first embodiment, and will not be repeated.

[0115] Third embodiment

[0116] Please refer to Figures 1 to 7 The embodiment provides an experimental equipment (not shown), which comprises a magnetic particle placement position, a stirring container and the magnetic particle taking and placing device 100 of the first or second embodiment. The magnetic particle taking and placing device 100 is used for sucking the magnetic particle 200 from the magnetic particle placement position and placing the magnetic particle 200 into the stirring container.

[0117] The magnetic particle placement position can have any structure such as a magnetic particle tray containing the magnetic particle 200 and a support frame. The magnetic particle placement position can place one or more magnetic particles 200.

[0118] The stirring container can refer to the foregoing description, which will not be repeated here.

[0119] The magnetic particle taking and placing device 100 moves relative to the magnetic particle placement position. The magnetic particle taking and placing device 100 drives the magnetic part 51 to move close to the taking and placing opening 21 to realize the suction of the magnetic particle 200. After the magnetic particle 200 is accommodated in the taking and placing opening 21, the magnetic particle taking and placing device 100 moves relative to the stirring container, so that the taking and placing opening 21 is opposite to the opening of the stirring container. The magnetic particle taking and placing device 100 drives the magnetic part 51 to move away from the taking and placing opening 21 to release the magnetic particle 200 from the taking and placing opening 21 to the stirring container.

[0120] The experimental equipment of the embodiment can realize the automatic taking and placing of the magnetic particle 200, avoid manual intervention, avoid affecting the automatic operation efficiency of the equipment, and also avoid the risk of poisoning of personnel.

[0121] Optionally, the experimental equipment further comprises a carrying device connected with the magnetic particle taking and placing device 100 and used for driving the magnetic particle taking and placing device 100 to move.

[0122] The carrying device can refer to the foregoing description, which will not be repeated here. The magnetic particle taking and placing device 100 is moved by the carrying device, so that the magnetic particle placing position and the stirring container can be in a fixed position without moving, which simplifies the equipment structure and reduces the cost. Among them, the carrying device can be fixedly connected with the magnetic particle taking and placing device 100 (such as screwing, clamping and the like), and the carrying device can also be detachably connected with the magnetic particle taking and placing device 100, such as being quickly detached and connected through the foregoing quick-change joint, which is not limited in the application.

[0123] In the description of the embodiments of the present application, it should be explained that the orientation or position relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship described based on the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0124] The above disclosed is only a preferred embodiment of the present application, of course, cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope of the present application.

Claims

1. A magnetic particle pick-and-place device, characterized in that, The application relates to a magnetic element installation device. The device comprises a support assembly, a mounting cylinder connected to the support assembly, a drive assembly installed on the support assembly, a mounting column connected to the drive assembly and capable of being at least partially inserted into the center hole of the mounting cylinder, and a magnetic element connected to the end of the mounting column away from the drive assembly. The drive assembly drives the mounting column to move in the extension direction of the mounting cylinder along the center hole, so that the magnetic element is close to or away from the taking and placing opening. The taking and placing opening is used for accommodating a magnetic element, the minimum radial dimension of the taking and placing opening is smaller than the maximum radial dimension of the magnetic element, and the maximum radial dimension of the taking and placing opening is larger than the maximum radial dimension of the magnetic element. The mounting cylinder and the mounting column are both magnetic insulators. The radial dimension of the taking and placing opening gradually increases from the end close to the support assembly to the end away from the support assembly. The taking and placing opening comprises a position correcting cavity and an opening cavity. The radial dimension of the position correcting cavity is smaller than the maximum radial dimension of the magnetic element, and is larger than the minimum radial dimension of the magnetic element.

2. The magnetic atom pick-and-place device of claim 1, wherein, The radial dimension of the position correcting cavity is smaller than or equal to the radial dimension of the opening of the end of the opening cavity connected to the position correcting cavity.

3. The magnetic atom pick-and-place device of claim 1, wherein, The position correcting cavity is connected to the center hole, and the radial dimension of the position correcting cavity is smaller than the radial dimension of the magnetic element.

4. The magnetic atom pick-and-place device of claim 3, wherein, The mounting cylinder comprises a partition plate separating the center hole and the position correcting cavity.

5. The magnetic atom pick-and-place device of claim 3, wherein, The center hole is connected to the taking and placing opening, the minimum radial dimension of the taking and placing opening is larger than or equal to the radial dimension of the center hole, and the drive assembly drives the magnetic element to extend out of the taking and placing opening from the center hole through the mounting column.

6. The magnetic atom pick-and-place device of claim 3, wherein, The mounting cylinder comprises a connecting cylinder, a sleeve and a guide cylinder.

7. The magnetic atom pick-and-place device of claim 2, wherein, The extension direction of the outer circumferential surface of the sleeve is consistent with the extension direction of the outer circumferential surface of the guide cylinder.

8. The magnetic atom pick-and-place device of any one of claims 1 to 7, wherein, The extension direction of the outer circumferential surface of the sleeve has an included angle with the extension direction of the outer circumferential surface of the guide cylinder, and the radial dimension of the outer circumferential surface of the guide cylinder gradually increases from the end close to the support assembly to the end away from the support assembly.

9. The magnetic atom pick-and-place device of claim 8, wherein, ​ ​ 10. The magnetic atom pick-and-place device of claim 8, wherein, The magnetic particle taking and placing device further comprises an adapter, one end of the adapter is connected with the support assembly, the other end of the adapter is detachably connected with the connecting cylinder, the adapter has a communication hole, the communication hole is communicated with the central hole, and at least part of the mounting column extends into the central hole through the communication hole.

11. The magnetic atom pick-and-place device of any one of claims 1 to 7, wherein, The support assembly comprises a bottom plate, the mounting cylinder is connected with the bottom plate, the bottom plate is provided with a through hole, the through hole is communicated with the central hole, and the driving assembly or the mounting column penetrates through the through hole; The support assembly further comprises a connecting plate and a top plate, the top plate is arranged in opposite spaced relationship with the bottom plate, the connecting plate is connected between the bottom plate and the top plate, the driving assembly comprises a driving member and an output shaft, the driving member is mounted on at least one of the bottom plate, the top plate and the connecting plate, the output shaft is connected with the mounting column, and the driving member is used to drive the output shaft to move to drive the mounting column to move.

12. The magnetic atom pick-and-place device of claim 11, wherein, The magnetic particle taking and placing device further comprises an inductor, the inductor is arranged on the top plate and / or the connecting plate, and the inductor is used to detect the position of the output shaft.

13. The magnetic atom pick-and-place device of claim 11, wherein, The magnetic particle taking and placing device further comprises a quick-change joint, the quick-change joint is connected with any one or more of the bottom plate, the top plate and the connecting plate, and the quick-change joint is used to be detachably connected with a carrying device.

14. An experimental apparatus characterized by, The experimental equipment comprises a magnetic particle placing position, a stirring container and the magnetic particle taking and placing device as claimed in any one of claims 1 to 13, the magnetic particle taking and placing device is used to take magnetic particles from the magnetic particle placing position and is used to place magnetic particles into the stirring container.

15. The experimental apparatus of claim 14, wherein, The experimental equipment further comprises a carrying device, the carrying device is connected with the magnetic particle taking and placing device and is used to drive the magnetic particle taking and placing device to move.

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