Thin plate carrying precision separating and collecting cluster electric permanent magnet system and implementation method

Abstract

This invention relates to the field of electro-permanent magnet handling technology, and particularly to a precision sheet handling and separation cluster electro-permanent magnet system and its implementation method. The system includes a power supply, a precision magnetic control electrical system, and a cluster of electro-permanent magnets connected sequentially. The cluster of electro-permanent magnets includes a connecting carrier and an electro-permanent magnet cluster. The upper part of the connecting carrier is connected to a handling crane, and the lower part is connected to the electro-permanent magnet cluster. The electro-permanent magnet cluster includes one or more independently controlled electro-permanent magnet units. These units are arranged in a matrix, a polar axis, or a specific distribution based on the shape of the sheet to be handled. The precision magnetic control electrical system precisely controls the magnetization of each pair of electro-permanent magnet units, generating a precise and stable magnetic field gradient and a magnetic permeability gradient, thereby achieving the adsorption of stacked sheet metal and precise sheet separation. This invention improves operational efficiency and reduces safety risks by controlling the electro-permanent magnet units to generate a stable magnetic field gradient and a magnetic permeability gradient for precise sheet handling and separation.

Description

Technical Field

[0001] This invention relates to the field of electro-permanent magnet handling technology, and in particular to a precision sheet handling and separation cluster electro-permanent magnet system and its implementation method. Background Technology

[0002] The thin plate handling precision sheet separation cluster electro-permanent magnet system is suitable for sheet separation adsorption, handling, and multiple separation or single sheet release in stacked thin plates. It is especially suitable for thin plate handling and positioning on automated production lines, sheet separation and loading / unloading in open-plate factories and material yards, which often require precise sheet separation for handling scenarios.

[0003] Regarding plate slab hoisting, most domestic slab hoisting plants with an annual production capacity of less than 500,000 tons still traditionally use steel plate hooks to lift the slab-hollowed steel plates. Each crane is equipped with one crane operator and two slingers. During hoisting operations, the steel plates are separated manually, and the hooks are manually attached, with each hoisting operation taking an average of four minutes. The main drawbacks of this method are: firstly, hook marks and damage on the edges of the steel plates affect their quality and lead to customer complaints; secondly, the hook-attaching operation can sometimes cause workplace accidents; and thirdly, it requires a large number of workers, and in the current market environment, the difficulty of recruiting workers is becoming increasingly prominent.

[0004] While existing electromagnetic or electro-permanent magnet lifting structures support remote operation from the cab and reduce the risk of personnel coming into contact with the load, they cannot meet the requirements for sheet separation accuracy for thin plates (less than 5mm thick). Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a precise sheet handling and sheet separation cluster electro-permanent magnet system and implementation method, in order to solve the problems of unstable sheet separation, low operating efficiency, and high safety risks in existing sheet handling systems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a clustered electro-permanent magnet system for precise sheet handling and separation of thin plates, comprising a power supply, a precision magnetic control electrical system, and a clustered electro-permanent magnet connected in sequence, wherein the power supply powers the precision magnetic control electrical system;

[0008] The cluster of electro-permanent magnets includes a connecting carrier and an electro-permanent magnet cluster, wherein the upper part of the connecting carrier is connected to a handling crane and the lower part is connected to the electro-permanent magnet cluster; the electro-permanent magnet cluster includes one or more independently controlled electro-permanent magnet units, and the several electro-permanent magnet units are arranged in a matrix, or in a polar axis arrangement, or in a specific distribution according to the shape of the thin plate to be attracted to form a cluster.

[0009] The precision magnetic control electrical system is used to precisely control the magnetism of each of the electro-permanent magnet units, so that they generate precise and stable magnetic field gradients and magnetic permeability gradients, thereby achieving the adsorption of stacked thin plates and the precise separation of the thin plates.

[0010] The precision magnetic control electrical system includes a human-machine interface, an intelligent magnetic control module, a multi-channel power drive power supply module, a closed-loop control module, and a safety protection module. The intelligent magnetic control module controls the multi-channel power drive power supply module to output precise control current parameters, thereby controlling the corresponding electro-permanent magnet unit to generate precise magnetic field gradients and permeability gradients. Based on the actual scenario, it implements multi-level precise demagnetization current control to achieve multiple sheet unloading and laying.

[0011] The connecting carrier and the electro-permanent magnet unit are connected by a floating connection structure, so that the electro-permanent magnet unit is in a floating state.

[0012] The floating connection structure adopts a combination of ball joint and spring, a combination of disc spring, or a gas spring connection.

[0013] The electro-permanent magnet unit includes a neutral substrate and multi-polar magnetic pole units embedded in the neutral substrate, with opposite magnetic pole units arranged adjacently to form magnetic pole unit pairs; the magnetic pole unit includes a permanent magnet, magnetic poles, a reversible permanent magnet, a magnetic detection sensor, and a magnetic control double coil, wherein the magnetic poles and the reversible permanent magnet are arranged vertically and connected to the neutral substrate, and the pole face of the magnetic pole protrudes from the upper surface of the neutral substrate; the magnetic control double coil is fitted on the outside of the reversible permanent magnet, and the permanent magnet and the magnetic detection sensor are fitted on the outside of the magnetic pole from bottom to top.

[0014] The magnetic control dual coil includes a magnetizing coil and a demagnetizing coil fitted outside the magnetizing coil. An insulating layer is provided between the magnetizing coil and the demagnetizing coil, and the number of turns of the demagnetizing coil is less than the number of turns of the magnetizing coil.

[0015] The connecting carrier is equipped with an integrated electrical interface; the integrated electrical interface connects the electrical components of each electro-permanent magnet unit of the cluster through the internal electrical connection of the connecting carrier; the internal electrical connection includes power transmission and signal transmission; the integrated electrical interface is connected to the precision magnetic control electrical system through the external electrical connection and is connected to the power supply to form a complete thin plate handling precision sheeting cluster electro-permanent magnet system.

[0016] The power source is either an external power grid or a rechargeable battery.

[0017] The connecting carrier has longitudinal extension, lateral extension or rotation functions, so that the longitudinal, lateral or radial gaps of the electro-permanent magnet cluster meet the requirements for thin plate handling and achieve uniform magnetic field distribution in the display area; the connecting carrier is equipped with a vision system to achieve rapid and accurate centering and positioning.

[0018] Another aspect of the present invention provides an implementation method based on the above-described thin-plate handling precision sheet-separating cluster electro-permanent magnet system, including an adsorption process and a sheet-separating and unloading process:

[0019] Adsorption Process: A crane, operated manually or via a vision system, moves the precisely segmented electro-permanent magnet system (EPM) above the stacked thin plates and centers it. The floating connection structure is lowered to ensure full contact between the EPM cluster and the upper surface of the stacked plates. The material of the thin plates, the thickness of each plate, the number of plates to be adsorbed, and the overall thickness to be adsorbed are input via a human-machine interface. The intelligent magnetic control module obtains precise control current parameters through data acquisition, database parameter comparison, or algorithm calculation and transmits them to the multi-channel power drive module. First, the edge EPM units covered by the thin plates are magnetized and lifted to separate the adsorbed plate layer from the underlying layer. Then, the remaining EPM units are magnetized and lifted to achieve complete separation. Finally, the current parameters of all EPM units are enhanced to complete the adsorption process.

[0020] Sheet feeding process: The adsorbed sheet is transported to the target location and positioned; the thickness of the sheet to be released and the number of sheets are input through the human-machine interface; the intelligent magnetic control module calculates the demagnetizing current parameters and transmits them to the multi-channel power drive module; first, the edge electro-permanent magnet units are demagnetized to peel off the edges of the sheet to be released; then, the remaining electro-permanent magnet units are demagnetized and lifted to achieve precise sheet feeding; finally, the current parameters of all electro-permanent magnet units are enhanced and magnetized; the sheet feeding process is repeated until all adsorbed sheets are released.

[0021] Advantages and beneficial effects of the present invention:

[0022] 1. This invention achieves flexible adjustment of the electro-permanent magnet unit through a floating connection structure, ensuring full contact between the electro-permanent magnet cluster and the upper surface of the stacked thin plate, improving the resistance to air gaps, and enhancing adsorption stability and reliability.

[0023] 2. The intelligent magnetic control module of the present invention can output precise current parameters to control the electro-permanent magnet unit to generate a stable magnetic field gradient and magnetic permeability gradient, thus solving the problem of precise sheet separation of thin plates less than 5mm.

[0024] 3. The electro-permanent magnet unit of the present invention adopts a magnetically controlled dual-coil design, which facilitates precise magnetic control, further improves the sheet separation accuracy, reduces safety risks during operation, reduces personnel input, and improves operation efficiency.

[0025] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0026] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the structure of the thin-plate handling and precise sheeting cluster electro-permanent magnet system of the present invention;

[0029] Figure 2 This is a structural block diagram of the precision magnetic control electrical system in this invention;

[0030] Figure 3 This is a schematic diagram of the floating connection structure in this invention;

[0031] Figure 4 This is one of the display and distribution diagrams of the electro-permanent magnet cluster in this invention;

[0032] Figure 5 This is the second arrangement and distribution diagram of the electro-permanent magnet cluster in this invention;

[0033] Figure 6 This is the third diagram showing the arrangement and distribution of the electro-permanent magnet cluster in this invention;

[0034] Figure 7 This is a schematic diagram of the structure of the magnetic pole unit pair in this invention.

[0035] In the diagram: 1. Power supply; 2. Precision magnetic control electrical system; 201. Human-machine interface; 202. Intelligent magnetic control module; 203. Multi-channel power drive power supply module; 204. Closed-loop control module; 205. Safety protection module; 3. Clustered electro-permanent magnets; 301. Connection carrier; 30101. Integrated electrical interface; 302. Electro-permanent magnet cluster; 30201. Electro-permanent magnet unit; 3020101. Neutral substrate; 3020102. Permanent magnet; 3020103. Magnetic pole; 3020104. Reversible permanent magnet; 3020105. Magnetizing coil; 3020106. Demagnetizing coil; 3020107. Insulation layer; 3020108. Magnetic detection sensor; 303. Floating connection structure; 4. Stacked thin plates to be transported; 5. Sheet-released thin plates; 6. Signal line; 7. Power line. Detailed Implementation

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] See Figures 1 to 7 As shown, an embodiment of the present invention provides a clustered electro-permanent magnet system for precise sheet handling and separation, comprising a power supply 1, a precision magnetic control electrical system 2, and a clustered electro-permanent magnet 3 connected in sequence, wherein the power supply 1 supplies power to the precision magnetic control electrical system 2; the clustered electro-permanent magnet 3 includes a connecting carrier 301 and an electro-permanent magnet cluster 302, wherein the upper part of the connecting carrier 301 is connected to a handling crane and the lower part is connected to the electro-permanent magnet cluster 302; the electro-permanent magnet cluster 302 includes one or more independently controlled electro-permanent magnet units 30201, and the multiple electro-permanent magnet units 30201 are arranged in a matrix, or in a polar axis arrangement (including multi-layer arrangement), or in a specific distribution according to the shape of the sheet to be attracted, to form a cluster; the precision magnetic control electrical system 2 is used to precisely control the magnetism of each pair of electro-permanent magnet units 30201, so that they generate a precise and stable magnetic field gradient and a magnetic permeability gradient, thereby realizing the adsorption of stacked sheet and the precise separation of sheet.

[0039] See Figure 1 As shown, in this embodiment of the invention, the connecting carrier 301 is provided with an integrated electrical interface 30101. The integrated electrical interface 30101 connects to the electrical connections of each electro-permanent magnet unit 30201 of the clustered electro-permanent magnet 3 via internal electrical connections within the connecting carrier 301. These internal electrical connections include power transmission and signal transmission. The integrated electrical interface 30101 is connected to the precision magnetic control electrical system 2 via external electrical connections (signal line 6 and power line 7) and is connected to the power supply 1, forming a complete thin-plate handling precision sheeting clustered electro-permanent magnet system. The power supply 1 is a power supply composed of an external power grid or a rechargeable battery. The precision magnetic control electrical system 2 is electrically connected to the integrated electrical interface 30101 provided in the connecting carrier 301, independently and precisely controlling each electro-permanent magnet unit 30201 of the clustered electro-permanent magnet 3.

[0040] See Figure 2As shown, in an embodiment of the present invention, the precision magnetic control electrical system 2 includes a human-machine interface 201, an intelligent magnetic control module 202, a multi-channel power drive power supply module 203, a closed-loop control module 204, and a safety protection module 205. The intelligent magnetic control module 202 includes a specific algorithm based on the coil parameters of each independently controlled electro-permanent magnet unit 30201 and the material, thickness, number of sheets, and number of sheets to be released each time of the transported sheet. Through data acquisition, calculation program, and data communication, it controls the multi-channel power drive power supply module 203 to output precise control current parameters (including pulse current waveform, amplitude, duration, and direction), and controls the corresponding electro-permanent magnet unit 30201 to generate precise magnetic field gradient and permeability gradient. According to the actual scenario, multi-level precise demagnetization current control is implemented to realize multiple sheet release and unloading. The closed-loop control module 204 collects real-time operating data such as the magnetic field strength and current parameters of the electro-permanent magnet unit 30201. It compares the collected data with the preset target parameters of the intelligent magnetic control module 202. If a deviation occurs, it immediately adjusts the output parameters of the multi-channel power drive module 203 to ensure that the electro-permanent magnet unit 30201 always generates a precise magnetic field gradient and permeability gradient. Throughout the thin plate adsorption and sheet separation process, the closed-loop control module 204 dynamically compensates for magnetic field fluctuations caused by differences in thin plate material and air gap changes, preventing over-adsorption, under-adsorption, or sheet separation failures, especially ensuring accurate sheet separation for thin plates smaller than 5mm. The safety protection module 205 monitors the output current and voltage of the multi-channel power drive module 203 in real-time. In case of overload or overcurrent, it immediately cuts off the power to the faulty channel to prevent the coil of the electro-permanent magnet unit from burning out due to excessive current, and also to avoid damage to the electrical system. During the thin plate adsorption process, the safety protection module 205 monitors whether the adsorption force of the electro-permanent magnet unit 30201 reaches the safety threshold. If the adsorption force is insufficient, an alarm will be triggered and the system will be instructed to enhance magnetization. During handling, if the sheet is detected to be loose, a stop signal will be issued immediately to prevent the sheet from falling and causing a safety accident. Operation permissions for the human-machine interface 201 are set to prevent misoperation leading to incorrect sheet separation or handling. When the system experiences problems such as floating connection failure or poor electrical interface contact, it will automatically stop and display a fault code for quick troubleshooting and repair. If the external power grid suddenly fails, this module will trigger the backup power supply or maintain the magnetic field of the electro-permanent magnet unit 30201 to ensure that the sheet being handled does not fall immediately, buying time for operators to handle emergencies.

[0041] Furthermore, the connecting carrier 301 and the electro-permanent magnet unit 30201 are connected by a floating connection structure 303, allowing the electro-permanent magnet unit 30201 to float within a certain range. Specifically, the floating connection structure 303 adopts a combination of ball joints and springs, a combination of disc springs, a gas spring connection, or other flexible connection methods, see [reference needed]. Figure 3 As shown.

[0042] See Figure 7 As shown, in an embodiment of the present invention, the electro-permanent magnet unit 30201 includes a neutral substrate 3020101 and multi-polar magnetic pole units embedded in the neutral substrate 3020101, with opposite magnetic pole units arranged adjacently to form magnetic pole unit pairs; the magnetic pole unit includes a permanent magnet 3020102, magnetic poles 3020103, a reversible permanent magnet 3020104, a magnetic detection sensor 3020108, and a magnetically controlled dual coil, wherein the magnetic poles 30201... 03 and reversible permanent magnet 3020104 are arranged vertically and connected to neutral substrate 3020101. The pole face of magnetic pole 3020103 protrudes from the upper surface of neutral substrate 3020101. The magnetic control double coil is fitted on the outside of reversible permanent magnet 3020104. Permanent magnet 3020102 and magnetic detection sensor 3020108 are fitted on the outside of magnetic pole 3020103 from bottom to top to achieve more stable magnetic control accuracy.

[0043] Specifically, the magnetically controlled dual coil includes a magnetizing coil 3020105 and a demagnetizing coil 3020106 fitted outside the magnetizing coil 3020105. An insulating layer 3020107 is provided between the magnetizing coil 3020105 and the demagnetizing coil 3020106, and the number of turns of the demagnetizing coil 3020106 is less than the number of turns of the magnetizing coil 3020105. The magnetically controlled dual coil enables precise magnetization control of the electro-permanent magnet unit 30201, generating a precise and stable magnetic field gradient and permeability gradient, thus achieving precise sheeting, especially for thin plates with a thickness of less than 5mm.

[0044] Furthermore, the connecting carrier 301 has longitudinal extension, lateral extension or rotation functions, so that the longitudinal, lateral or radial gap of the electro-permanent magnet cluster 302 meets the requirements for thin plate handling and achieves uniform magnetic field distribution in the display area; the connecting carrier 301 is equipped with a vision system to achieve rapid and accurate centering and positioning.

[0045] This invention provides a precision sheet handling and stacking electro-permanent magnet system. Through a floating connection structure, the electro-permanent magnet units can be flexibly adjusted, ensuring full contact between the electro-permanent magnet cluster and the upper surface of the stacked thin sheets, improving resistance to air gaps, and enhancing adsorption stability and reliability. By outputting precise current parameters through an intelligent magnetic control module, the system controls the electro-permanent magnet units to generate stable magnetic field and permeability gradients, enabling precise sheet handling and stacking of sheets thinner than 5mm. This improves operational efficiency, reduces safety risks, and is suitable for thin sheet handling scenarios such as automated production lines and sheet metal processing plants.

[0046] Another embodiment of the present invention provides an implementation method based on the above-described thin-plate handling precision sheeting cluster electro-permanent magnet system, including an adsorption process and a sheeting and unloading process:

[0047] Adsorption Process: A crane, operated manually or via a vision system, moves the electro-permanent magnet system (EPM) to the top of the stacked thin plates 4 and centers it. The floating connection structure 303 is lowered to ensure full contact between the EPM cluster 302 and the upper surface of the stacked thin plates. The material of the thin plates, the thickness of each plate, the number of plates to be adsorbed, and the overall thickness of the plates to be adsorbed are input through the human-machine interface 201. The intelligent magnetic control module 202 obtains precise control current parameters (including pulse current waveform, amplitude, duration, and direction) through data acquisition, database parameter comparison, or algorithm calculation. The signal is then transmitted to the multi-channel power drive module 203. First, the edge electro-permanent magnet unit 30201 covered by the thin plate is controlled to generate a precise and stable magnetic field gradient and a magnetic permeability gradient to complete magnetization. After this, it is slightly lifted by 1-2mm to separate the adsorbed thin plate layer from the underlying layer. Then, the remaining electro-permanent magnet units 30201 are controlled to generate a precise magnetic field gradient and a magnetic permeability gradient to complete magnetization and are lifted to fully separate the adsorbed thin plate layer from the underlying stacked thin plate. Finally, the current parameters of all electro-permanent magnet units 30201 are increased by 20% to enhance magnetization, ensure safety, and complete the adsorption.

[0048] Sheet-by-sheet feeding process: The adsorbed sheet is transported to the target location and positioned; the thickness of the sheet to be released and the number of sheets are input through the human-machine interface 201; the intelligent magnetic control module 202 accurately calculates the demagnetizing current parameters (including pulse current waveform, amplitude, duration and direction) through data acquisition, database parameter comparison or corresponding algorithm calculation program, and outputs them to the multi-channel power drive module 203 via data communication; first, the edge electro-permanent magnet unit 30201 is controlled to generate a stable and precise magnetic field gradient and magnetic permeability gradient to complete demagnetization, so that the edge of the sheet to be released is peeled off; then, the remaining electro-permanent magnet units 30201 are controlled to generate a precise magnetic field gradient and magnetic permeability gradient to complete demagnetization and lift, so that the sheet to be released is fully peeled off, realizing this precise sheet-by-sheet feeding; finally, the current parameters of all electro-permanent magnet units 30201 are increased by 20% to enhance magnetization and ensure safe handling; the sheet-by-sheet feeding process is repeated until all adsorbed sheets are released.

[0049] This invention utilizes a floating connection between the electro-permanent magnet unit 30201 and the connecting carrier 301. This flexible self-adjustment ensures that each electro-permanent magnet unit 30201 of the electro-permanent magnet cluster 302 makes full contact with the upper surface of the stacked thin plate, improving the anti-air gap capability of the electro-permanent magnet cluster 302 itself and enhancing the adsorption stability and reliability of the stacked thin plate. The intelligent magnetic control module 202 of this invention accurately controls the current parameters (including pulse current waveform, amplitude, duration, and direction) through data acquisition, database parameter comparison, or corresponding algorithm calculation programs. This data is then output to the multi-channel power drive module 203 via data communication, controlling the output of precise control current parameters (including pulse current waveform, amplitude, duration, and direction). This controls each electro-permanent magnet unit 30201 of the electro-permanent magnet cluster 302 to generate a precise magnetic field gradient and permeability gradient, achieving precise magnetic control and solving the problem of precise sheet separation, especially for thin plates with a thickness of less than 5mm. The relevant detection circuits and electromagnetic control circuits are all conventional technologies in the field. Those skilled in the art can select appropriate electronic components from the existing technology to implement the corresponding functions without creative effort, based on the structure and function described in this invention.

[0050] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A cluster electro-permanent magnet system for precise sheet handling and separation of thin plates, characterized in that, It includes a power supply (1), a precision magnetic control electrical system (2) and a cluster of electro-permanent magnets (3) connected in sequence, wherein the power supply (1) supplies power to the precision magnetic control electrical system (2); The cluster of electro-permanent magnets (3) includes a connecting carrier (301) and an electro-permanent magnet cluster (302), wherein the upper part of the connecting carrier (301) is connected to a handling crane and the lower part is connected to the electro-permanent magnet cluster (302); the electro-permanent magnet cluster (302) includes one or more independently controlled electro-permanent magnet units (30201), and the several electro-permanent magnet units (30201) are arranged in a matrix, or in a polar axis arrangement, or in a specific distribution according to the shape of the thin plate to be attracted to form a cluster; The precision magnetic control electrical system (2) is used to precisely control the magnetism of each of the electro-permanent magnet units (30201), so that they generate a precise and stable magnetic field gradient and a magnetic permeability gradient, thereby achieving the adsorption of the stacked thin plates and the precise separation of the thin plates.

2. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 1, characterized in that, The precision magnetic control electrical system (2) includes a human-machine interface (201), an intelligent magnetic control module (202), a multi-channel power drive power supply module (203), a closed-loop control module (204), and a safety protection module (205). The intelligent magnetic control module (202) controls the multi-channel power drive power supply module (203) to output precise control current parameters, thereby controlling the corresponding electro-permanent magnet unit (30201) to generate precise magnetic field gradient and permeability gradient. According to the actual scenario, multi-level precise demagnetization current control is implemented to realize multiple unloading and release.

3. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 2, characterized in that, The connecting carrier (301) and the electro-permanent magnet unit (30201) are connected by a floating connecting structure (303), so that the electro-permanent magnet unit (30201) is in a floating state.

4. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 3, characterized in that, The floating connection structure (303) adopts a combination of ball joint and spring, a combination of disc spring, or a gas spring connection.

5. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 2, characterized in that, The electro-permanent magnet unit (30201) includes a neutral substrate (3020101) and multi-polar magnetic pole units embedded in the neutral substrate (3020101), with opposite magnetic pole units arranged adjacently to form magnetic pole unit pairs; the magnetic pole unit includes a permanent magnet (3020102), magnetic poles (3020103), a reversible permanent magnet (3020104), a magnetic detection sensor (3020108), and a magnetically controlled dual coil, wherein the magnetic poles (30201) 03) and the reversible permanent magnet (3020104) are arranged vertically and connected to the neutral substrate (3020101). The pole face of the magnetic pole (3020103) protrudes from the upper surface of the neutral substrate (3020101). The magnetic control double coil is fitted on the outside of the reversible permanent magnet (3020104). The permanent magnet (3020102) and the magnetic detection sensor (3020108) are fitted on the outside of the magnetic pole (3020103) from bottom to top.

6. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 5, characterized in that, The magnetic control dual coil includes a magnetizing coil (3020105) and a demagnetizing coil (3020106) fitted outside the magnetizing coil (3020105). An insulating layer (3020107) is provided between the magnetizing coil (3020105) and the demagnetizing coil (3020106), and the number of turns of the demagnetizing coil (3020106) is less than the number of turns of the magnetizing coil (3020105).

7. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 2, characterized in that, The connecting carrier (301) is provided with an integrated electrical interface (30101); the integrated electrical interface (30101) connects the electrical connections of each electro-permanent magnet unit (30201) of the cluster electro-permanent magnet (3) through the internal electrical connection of the connecting carrier (301); the internal electrical connection includes power transmission and signal transmission; the integrated electrical interface (30101) is connected to the precision magnetic control electrical system (2) through the external electrical connection and connected to the power supply (1) to form a complete thin plate handling precision sheeting cluster electro-permanent magnet system.

8. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 2, characterized in that, The power source (1) is a power source consisting of an external power grid or a rechargeable battery.

9. The thin-plate handling and precise sheet separation cluster electro-permanent magnet system according to claim 2, characterized in that, The connecting carrier (301) has longitudinal extension, lateral extension or rotation functions, so that the longitudinal, lateral or radial gap of the electro-permanent magnet cluster (302) meets the requirements of thin plate handling and achieves uniform magnetic field distribution in the display area; the connecting carrier (301) is equipped with a vision system to achieve rapid and accurate centering and positioning.

10. A method for implementing the thin-plate handling and precise sheet-separating cluster electro-permanent magnet system according to any one of claims 2-9, characterized in that, Including the adsorption process and the sheet feeding process: Adsorption process: The crane is operated manually or by a vision system to move the electro-permanent magnet system of the thin plate handling precision sheet cluster to the top of the stacked thin plates to be transported and center it; the floating connection structure (303) is lowered to ensure that the electro-permanent magnet cluster (302) is in full contact with the upper surface of the stacked thin plates; the material of the thin plate, the thickness of a single plate, the number of sheets to be picked up and the overall thickness of the sheet to be adsorbed are input through the human-machine interface (201); the intelligent magnetic control module (202) obtains the precise control current parameters through data acquisition, database parameter comparison or algorithm calculation and transmits them to the multi-channel power drive power supply module (203); first, the edge electro-permanent magnet units (30201) covered by the thin plates are magnetized and lifted to separate the adsorbed thin plate layer from the lower layer; then the remaining electro-permanent magnet units (30201) are magnetized and lifted to achieve full separation; finally, the current parameters of all electro-permanent magnet units (30201) are enhanced and magnetized to complete the adsorption; Sheet feeding process: The adsorbed sheet is transported to the target position and positioned; the thickness of the single sheet to be released and the number of sheets to be divided are input through the human-machine interface (201); the intelligent magnetic control module (202) calculates the demagnetizing current parameters and transmits them to the multi-channel power drive power supply module (203); first, the edge electro-permanent magnet unit (30201) is demagnetized to peel off the edge of the sheet to be released; then the remaining electro-permanent magnet units (30201) are demagnetized and lifted to achieve precise sheet feeding; finally, the current parameters of all electro-permanent magnet units (30201) are enhanced and magnetized; the sheet feeding process is repeated until all adsorbed sheets are released.

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