Magnetic control cleaning device and automatic magnetic bead cleaning instrument

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a magnetic control cleaning device and an automatic magnetic bead cleaning instrument. Comprising a container used for containing magnetic beads to be cleaned and cleaning liquid, a stirrer matched with the container and capable of stirring in the container, and a magnetic bead adsorption block arranged on the outer wall of the container, when the magnetic beads in the container are cleaned, the magnetic bead adsorption block is far away from the outer wall of the container, the magnetic beads in the container are dispersed in the container, and when the cleaning liquid in the container is pumped out, the magnetic beads in the container are separated from the container. The magnetic bead adsorption block is close to the outer wall of the container, the magnetic beads in the container are adsorbed on the inner wall of the container, the magnetic control cleaning device can effectively control the magnetic beads to be fully dispersed in the container to be cleaned in the cleaning process, after the magnetic beads are cleaned, the magnetic beads can be stably adsorbed on the inner wall face of the container, and loss of the magnetic beads is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a magnetic control cleaning device and a magnetic bead automatic cleaning instrument. Background Art

[0002] Magnetic beads are small spheres made of magnetic material, with diameters as small as microns. They are used in a wide range of fields, including biomedicine, chemistry, electronics, and industry. In the biomedical field, magnetic beads are often used for cell separation, protein purification, and DNA / RNA extraction. During the production process, a layer of grease forms on the surface of the beads, which requires cleaning.

[0003] Currently, magnetic beads are primarily placed in a container for centralized cleaning. This cleaning method involves rinsing and cleaning the beads in a working container. However, due to their magnetic adsorption, the beads can clump together during the cleaning process, preventing complete cleaning of each bead. Alternatively, when the cleaning water is poured out, the beads may be carried along with the cleaning solution, affecting the cleaning effect and resulting in bead loss.

[0004] To address this issue, existing technologies use a magnetic rod and a sleeve. The magnetic rod is inserted into the sleeve of the container. The magnetic rod can magnetically attract the magnetic components in the working container to the sleeve and evenly distribute them on the sleeve under the action of gravity, thereby dispersing and adsorbing the magnetic beads to prevent them from being lost with the cleaning solution. However, this method still has shortcomings: when the magnetic rod is pulled out of the magnetic sleeve, the movement of the magnetic rod also causes the magnetic beads to move, causing them to be lost from the top of the container. Therefore, there is an urgent need to optimize and upgrade the magnetic bead cleaning device. Utility Model Content

[0005] One of the purposes of the present utility model is to avoid the shortcomings of the prior art and provide a magnetic control cleaning device, which can effectively control the magnetic beads to be fully dispersed in the container during the cleaning process for cleaning. After the magnetic beads are cleaned, the magnetic beads can also be stably adsorbed on the inner wall of the container to avoid the loss of the magnetic beads.

[0006] A second purpose of the present invention is to provide an automatic magnetic bead cleaning instrument.

[0007] In order to achieve one of the above purposes, the present invention provides the following technical solutions:

[0008] Provided is a magnetic control cleaning device, comprising:

[0009] Container for holding the magnetic beads to be cleaned and the cleaning solution,

[0010] a stirrer adapted to the container and capable of stirring within the container,

[0011] A magnetic bead adsorption block is provided on the outer wall of the container.

[0012] When the magnetic beads are washed in the container, the magnetic bead adsorption block is away from the outer wall of the container, and the magnetic beads in the container are dispersed in the container.

[0013] When the cleaning liquid is extracted from the container, the magnetic bead adsorption block is close to the outer wall of the container, and the magnetic beads in the container are adsorbed on the inner wall of the container.

[0014] In some embodiments, a driving component is included, which drives the magnetic bead adsorption block to move closer to or away from the outer wall of the container.

[0015] In some embodiments, the driving component is a cylinder, the telescopic end of the cylinder is connected to the magnetic bead adsorption block, and the cylinder drives the magnetic bead adsorption block to move closer to or away from the outer wall of the container.

[0016] In some embodiments, a PLC controller is included, and the PLC controller is connected to the driving component, and the PLC controller controls the driving component to drive the working state of the magnetic bead adsorption block.

[0017] In some embodiments, the wall surface of the container is provided with a first light-transmitting ring and a second light-transmitting ring opposite to each other.

[0018] The first light-transmitting circle is provided with a light source, and the second light-transmitting circle is provided with a light sensor. The light sensor obtains the intensity of the light source after it passes through the first light-transmitting circle and the cleaning liquid in the container in sequence.

[0019] The light sensor is connected to the PLC controller, and the PLC controller determines the cleaning degree and thus the cleaning procedure according to the light transmittance of the cleaning liquid fed back by the light sensor.

[0020] In some embodiments, the magnetic bead adsorption block is a magnet.

[0021] In some embodiments, the magnet is an electromagnet, and the current of the electromagnet is controlled by the PLC controller.

[0022] In some embodiments, the light source is a white light source.

[0023] In some embodiments, the invention further comprises a liquid extraction component, which is connected to the container and the PLC controller and is used to inject liquid into the container or extract liquid from the container;

[0024] The container is provided with a first liquid level sensor and a second liquid level sensor;

[0025] The liquid extraction and injection assembly includes a liquid extraction pump and a liquid injection pump;

[0026] The first liquid level sensor is provided at the bottom of the container and is connected to the liquid pump, and is used to monitor the lowest liquid level of the liquid;

[0027] The second liquid level sensor is arranged at the set liquid level line of the container and is connected to the injection pump, and is used to monitor the maximum liquid level of the injection.

[0028] Beneficial effects of the magnetic control cleaning device of the utility model:

[0029] The magnetic control cleaning device of the present invention is provided with an agitator in the container. Therefore, during the cleaning process, the agitator can fully disperse the magnetic beads, so that the magnetic bead cleaning effect is good and the problem of magnetic beads agglomerating and being unable to be cleaned is avoided. At the same time, a magnetic bead adsorption block is provided outside the container wall. When the cleaning liquid needs to be replaced, the magnetic bead adsorption block is adsorbed on the container wall surface, so that the magnetic beads can be stably fixed on the inner wall of the container, avoiding the magnetic beads from being lost with the cleaning liquid, thereby achieving the function of protecting the magnetic beads.

[0030] To achieve the second of the above objectives, the present invention provides the following technical solutions:

[0031] Provided is a magnetic bead automatic cleaning instrument, comprising the above-mentioned magnetic control cleaning device and an automatic control module, wherein the automatic control module is connected to the magnetic control cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a magnetic control cleaning device according to a specific embodiment of the present invention.

[0033] Figure 2 It is a structural schematic diagram of the working state of the magnetic bead adsorption block of the specific embodiment of the present utility model away from the outer wall of the container.

[0034] Figure 3 It is a structural schematic diagram of the working state of the magnetic bead adsorption block close to the outer wall of the container according to a specific embodiment of the present invention.

[0035] Reference numerals:

[0036] 1. Container; 2. Magnetic beads; 3. Cleaning liquid; 4. Agitator; 5. Magnetic bead adsorption block; 6. Cylinder; 7. PLC controller; 8. First light-transmitting ring; 9. Second light-transmitting ring; 10. Light source; 11. Light sensor; 12. First liquid level sensor; 13. Second liquid level sensor; 14. Ultrasonic vibration component; 15. Heating component. DETAILED DESCRIPTION

[0037] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0038] Example 1

[0039] Please refer to Figures 1 to 3 In view of the problem that the magnetic beads 2 on the magnetic sleeve are easily taken out when the magnetic rod is pulled out of the magnetic sleeve in the current magnetic bead cleaning device, the magnetic beads 2 are further improved. In this regard, this embodiment discloses a magnetic control cleaning device, including:

[0040] Container 1, used to contain magnetic beads 2 to be cleaned and cleaning solution 3,

[0041] Specifically, the container 1 is used as a cleaning container 1 for placing magnetic beads 2 to be cleaned and injecting cleaning liquid 3. The cleaning liquid 3 can be clean water or acidic cleaning liquid 3.

[0042] A stirrer 4, which is adapted to the container 1 and can stir in the container 1,

[0043] Specifically, the stirrer 4 is used to stir the container 1 so that the magnetic beads 2 to be cleaned and the cleaning solution 3 in the container 1 are fully mixed, so that the cleaning solution 3 can fully contact the magnetic beads 2 to achieve the cleaning effect.

[0044] Magnetic bead 2 adsorption block, the magnetic bead 2 adsorption block is arranged on the outer wall of the container 1,

[0045] Specifically, the magnetic bead 2 adsorption block provides adsorption force, and the magnetic bead 2 adsorption block is set on the outer wall of the container 1, so that the magnetic beads 2 in the container 1 are fixed on the inner wall of the container 1 under the adsorption action of the magnetic bead 2 adsorption block, which plays the role of fixing the magnetic beads 2 and avoiding the problem of loss of the magnetic beads 2 due to overflow of the cleaning liquid 3.

[0046] When the magnetic beads 2 are washed in the container 1, the magnetic beads 2 adsorption block is away from the outer wall of the container 1, and the magnetic beads 2 in the container 1 are dispersed in the container 1.

[0047] Specifically, when the container 1 is washing the magnetic beads 2 , in order to prevent the adsorption blocks of the magnetic beads 2 from affecting the dispersion of the magnetic beads 2 , the adsorption blocks of the magnetic beads 2 need to be kept away from the container 1 .

[0048] When the cleaning liquid 3 is extracted from the container 1 , the magnetic beads 2 adsorption block approaches the outer wall of the container 1 , and the magnetic beads 2 in the container 1 are adsorbed on the inner wall of the container 1 .

[0049] Specifically, when the cleaning liquid 3 in the container 1 needs to be poured out, in order to prevent the magnetic beads 2 from flowing out with the cleaning liquid 3, the magnetic bead 2 adsorption block is adsorbed on the outer wall of the container 1. Here, the magnetic beads 2 are adsorbed by the magnetic bead 2 adsorption block and will not overflow with the pouring out of the cleaning liquid 3.

[0050] Example 2

[0051] Please refer to Figures 1 to 3 In order to further realize the intelligent cleaning of magnetic beads 2, based on Example 1, this embodiment also discloses the use of a driving component to drive the magnetic bead 2 adsorption block close to or away from the outer wall of the container 1. The driving component is a cylinder 6, and the telescopic end of the cylinder 6 is connected to the magnetic bead 2 adsorption block. The cylinder 6 drives the magnetic bead 2 adsorption block close to or away from the outer wall of the container 1.

[0052] During use, the extension and contraction of the telescopic end of the cylinder 6 can drive the magnetic bead 2 adsorption block connected to the telescopic end of the cylinder 6 to move, thereby driving the magnetic bead 2 adsorption block to move closer to or away from the outer wall of the container 1. The use of the cylinder 6 is low in cost and highly controllable.

[0053] In order to further realize intelligence, a PLC controller 7 is further included. The PLC controller 7 is connected to the driving component, and the PLC controller 7 controls the driving component to drive the magnetic bead 2 to adsorb the working state of the block.

[0054] By inputting parameters into the PLC controller 7, the PLC controller 7 can control the motion state of the driving component. For example, when the cleaning time is 30 minutes, the PLC controller 7 controls the driving component to approach the outer wall of the container 1 after 30 minutes, so that the cleaning is stopped, thereby changing the cleaning liquid 3 or stopping the cleaning.

[0055] The PLC controller 7 (Programmable Logic Controller) can control the motion of various mechanical or electronic components based on input parameters and pre-set programs. For example, to control the cleaning process, first, set the cleaning time parameter on the PLC controller 7 user interface, for example, 30 minutes. Use the PLC controller 7 programming software to program the control logic. The program will include instructions for starting the cleaning process, timing, detecting when the time has expired, and controlling the drive components. Configure the PLC controller 7's input / output ports, ensuring they are properly connected to the drive components and hardware devices such as sensors.

[0056] Download the written program to the PLC controller 7 and start the program. The PLC controller 7 starts executing according to the program logic. When cleaning begins, the PLC controller 7 will start the timer. The timer inside the PLC controller 7 starts counting, and at the same time monitors the various sensor signals during the cleaning process to ensure that everything is normal. When the timer reaches the preset 30 minutes, the PLC controller 7 will receive a time-out signal. Based on the time-out signal, the PLC controller 7 sends an instruction to the drive component to make it perform the corresponding action. The drive component approaches the outer wall of the container 1 according to the instruction of the PLC controller 7, stops cleaning, or prepares to replace the cleaning liquid 3.

[0057] Example 3

[0058] Please refer to Figures 1 to 3 In order to accurately control the cleaning process, based on Example 2, this embodiment further discloses that the wall surface of the container 1 is provided with a first light-transmitting circle 8 and a second light-transmitting circle 9 opposite to each other. The first light-transmitting circle 8 is provided with a light source 10, and the second light-transmitting circle 9 is provided with a light sensor 11. The light sensor 11 detects the intensity of the light source 10 after it passes through the first light-transmitting circle 8 and the solution in the container 1 in sequence.

[0059] The optical sensor 11 is connected to the PLC controller 7 , and the PLC controller 7 determines the degree of cleaning based on the transmittance of the cleaning liquid 3 fed back by the optical sensor 11 and thus determines whether to change the water for cleaning.

[0060] During use, the light source 10 is irradiated into the container 1 from the first light-transmitting circle 8. Due to the different turbidity of the cleaning liquid 3, the light intensity of the light source 10 after passing through the cleaning liquid 3 will also change accordingly. Therefore, a light sensor 11 is provided on the second light-transmitting circle 9, and the light intensity signal fed back by the light sensor 11 is transmitted to the PLC controller 7. The PLC controller controls whether to replace the cleaning liquid 3 to continue cleaning or to stop cleaning due to the low turbidity of the cleaning liquid 3.

[0061] For example, when the turbidity of the solution is greater than 1 NTU, the PLC changes the cleaning solution 3 to continue cleaning, and when the turbidity of the solution is less than 1 NTU, the cleaning is terminated.

[0062] More specifically, in an automated cleaning system, using a PLC controller 7 in conjunction with a light sensor 11 to monitor the turbidity of the cleaning fluid 3 and control the cleaning process accordingly is an efficient and automated method. For example, prepare a container 1 with a transparent window to hold the cleaning fluid 3. Place a light source 10 on one side of the container 1, serving as the system's first light transmission zone 8. Place a light sensor 11 on the opposite side of the container 1, serving as the system's second light transmission zone 9. Install the light source 10 and light sensor 11 in the designated locations of the container 1, ensuring they can properly illuminate and receive light from the cleaning fluid 3. Connect the output signal of the light sensor 11 to the input port of the PLC controller 7. Use PLC programming software to program the control logic, including receiving the light sensor 11 signal, comparing the turbidity threshold, and issuing instructions to change or stop the cleaning process. Set the turbidity threshold to 1 NTU in the PLC controller 7. This can be achieved by calibrating the light sensor 11 and the PLC program. Before the system is put into use, it is tested and calibrated using a standard solution of known turbidity to ensure that the light sensor 11 and the PLC controller 7 can accurately respond to different turbidity levels. Start the cleaning process and turn on the light source 10 and the PLC controller 7 at the same time. During the cleaning process, the light emitted by the light source 10 passes through the cleaning liquid 3, and the light sensor 11 detects the light intensity after passing through the cleaning liquid 3. The PLC controller 7 determines whether the turbidity of the cleaning liquid 3 exceeds the set threshold based on the light intensity signal fed back by the light sensor 11. When the detected turbidity is greater than 1NTU, the PLC controller 7 issues a command to start the cleaning liquid 3 replacement process and continue cleaning. When the detected turbidity is less than or equal to 1NTU, the PLC controller 7 determines that the cleaning liquid 3 is sufficiently clean and issues a command to stop cleaning.

[0063] The magnetic bead 2 adsorption block is a magnet. The magnetic bead 2 adsorption block can also be other metal blocks, such as iron blocks, as long as it can adsorb the magnetic beads 2 in the container 1.

[0064] In this embodiment, the light source 10 is a white light source 10 .

[0065] Example 4

[0066] Please refer to Figures 1 to 3 In order to better achieve the adsorption of the magnetic beads 2 in the container 1, based on Example 3, the magnet is an electromagnet, and the current of the electromagnet is controlled by the PLC controller 7.

[0067] The PLC controller 7 controls the magnetic attraction effect of the electromagnet according to the amount of magnetic beads 2 in the container 1, so as to better absorb a large amount of magnets and avoid the adsorption force of the magnetic beads 2 being too low and unable to control the adsorption well.

[0068] In practical applications, the adsorption force of the electromagnet is tested under different currents, and a relationship model between current and adsorption force is established. The sensor, electromagnet, and PLC controller 7 are connected to perform system debugging to ensure that all components work together. During operation, the sensor monitors the number or position of the magnetic beads 2 in the container 1 in real time and transmits the signal to the PLC controller 7. The PLC controller 7 calculates the required adsorption force of the electromagnet based on the sensor signal and adjusts the current to change the adsorption force. The PLC controller 7 can be set up with a feedback mechanism to adjust the current according to the actual adsorption effect to optimize the adsorption process.

[0069] Example 5

[0070] Please refer to Figures 1 to 3 On the basis of embodiment 1, this embodiment further discloses a liquid extraction component, which is connected to the container 1 and the PLC controller 7 and is used to inject liquid into the container 1 or extract liquid from the container 1;

[0071] The container 1 is provided with a first liquid level sensor 12 and a second liquid level sensor 13;

[0072] The liquid extraction and injection assembly includes a liquid extraction pump and a liquid injection pump;

[0073] The first liquid level sensor 12 is provided at the bottom of the container 1 and is connected to the liquid pump, and is used to monitor the lowest liquid level of the liquid;

[0074] The second liquid level sensor 13 is arranged at the set liquid level line of the container 1 and is connected to the injection pump, and is used to monitor the maximum liquid level of the injection.

[0075] Exemplarily, it also includes a liquid extraction and injection component, a first liquid level sensor 12 and a second liquid level sensor 13: the first liquid level sensor 12 and the second liquid level sensor 13 are installed in the container 1, respectively located at the bottom of the container 1 and the set liquid level line. The liquid extraction pump and the liquid injection pump are installed and connected to the container 1. The first liquid level sensor 12 is connected to the liquid extraction pump so that the liquid extraction pump is started when the liquid level is lower than the set value. The second liquid level sensor 13 is connected to the liquid injection pump so that the liquid injection pump is started when the liquid level reaches the set value. Signals from the first liquid level sensor 12 and the second liquid level sensor 13 are received.

[0076] The start and stop of the liquid extraction pump and the liquid injection pump are controlled according to the liquid level signal. The liquid level control logic is implemented. For example, the liquid extraction pump is automatically started when the liquid level is lower than the minimum liquid level, and the liquid injection pump is automatically stopped when the liquid level reaches the maximum liquid level. The signals of the first liquid level sensor 12 and the second liquid level sensor 13 are monitored in real time, and the operation of the liquid extraction pump and the liquid injection pump is automatically controlled according to the liquid level changes. This embodiment provides a basic framework for an automated liquid handling system. The specific implementation may be adjusted according to factors such as the actual liquid characteristics, the size of the container 1, and the performance of the pump. In practical applications, the response speed, stability, and ease of operation of the system also need to be considered.

[0077] In addition, the ultrasonic vibration component 14 and the heating component 15 at the bottom of the outer wall of the container 1 enable the magnetic beads 2 to be more fully dispersed when washing.

[0078] Example 6

[0079] The magnetic bead 2 automatic cleaning instrument disclosed in this embodiment includes the above-mentioned magnetic control cleaning device and an automatic control module, and the automatic control module is connected to the magnetic control cleaning device;

[0080] The automatic control module includes an HMI human-machine interface.

[0081] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0082] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0083] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0084] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0085] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A magnetic control cleaning device, characterized in that: include: A container (1) for containing magnetic beads to be cleaned (2) and a cleaning solution (3), a stirrer (4), the stirrer (4) being adapted to the container (1) and capable of stirring in the container (1), A magnetic bead (2) adsorption block, wherein the magnetic bead (2) adsorption block is arranged on the outer wall of the container (1), When the magnetic beads (2) are washed in the container (1), the adsorption blocks of the magnetic beads (2) are away from the outer wall of the container (1), and the magnetic beads (2) in the container (1) are dispersed in the container (1). When the cleaning liquid (3) is extracted from the container (1), the magnetic bead (2) adsorption block approaches the outer wall of the container (1), and the magnetic beads (2) in the container (1) are adsorbed on the inner wall of the container (1).

2. The magnetic control cleaning device according to claim 1, characterized in that: It comprises a driving component, which drives the magnetic bead (2) adsorption block to move closer to or away from the outer wall of the container (1).

3. The magnetic control cleaning device according to claim 2, characterized in that: The driving component is a cylinder (6), the telescopic end of the cylinder (6) is connected to the magnetic bead (2) adsorption block, and the cylinder (6) drives the magnetic bead (2) adsorption block to approach or move away from the outer wall of the container (1).

4. The magnetic control cleaning device according to claim 2, characterized in that: It comprises a PLC controller (7), the PLC controller (7) is connected to the driving component, and the PLC controller (7) controls the driving component to drive the working state of the magnetic bead (2) adsorption block.

5. The magnetic control cleaning device according to claim 4, characterized in that: The wall surface of the container (1) is provided with a first light-transmitting ring (8) and a second light-transmitting ring (9) opposite to each other. The first light-transmitting circle (8) is provided with a light source (10) in correspondence, and the second light-transmitting circle (9) is provided with a light sensor (11) in correspondence. The light sensor (11) acquires the intensity of the light source (10) after it passes through the first light-transmitting circle (8) and the cleaning liquid (3) in the container (1) in sequence. The light sensor (11) is connected to the PLC controller (7), and the PLC controller (7) determines the degree of cleaning and thus the cleaning procedure based on the transmittance of the cleaning liquid (3) fed back by the light sensor (11).

6. The magnetic control cleaning device according to claim 5, characterized in that: The magnetic bead (2) adsorption block is a magnet.

7. The magnetic control cleaning device according to claim 6, characterized in that: The magnet is an electromagnet, and the current of the electromagnet is controlled by the PLC controller (7).

8. The magnetic control cleaning device according to claim 5, characterized in that: The light source (10) is a white light source (10).

9. The magnetic control cleaning device according to claim 7, characterized in that: It also includes a liquid extraction component, which is connected to the container (1) and the PLC controller (7) and is used to inject liquid into the container (1) or extract liquid from the container (1); The container (1) is provided with a first liquid level sensor (12) and a second liquid level sensor (13); The liquid extraction and injection assembly includes a liquid extraction pump and a liquid injection pump; The first liquid level sensor (12) is arranged at the bottom of the container (1) and is connected to the liquid pump, and is used to monitor the lowest liquid level of the liquid; The second liquid level sensor (13) is arranged at the set liquid level line of the container (1) and is connected to the injection pump, and is used to monitor the maximum liquid level of the injection.

10. A magnetic bead automatic cleaning instrument, characterized in that: It comprises the magnetic control cleaning device according to any one of claims 1 to 9 and an automatic control module, wherein the automatic control module is connected to the magnetic control cleaning device.

Images