Magnetic identity identification tag preparation method and tag structure

Abstract

The invention discloses a magnetic identification tag preparation method and a tag structure, and relates to the technical field of tags. The method comprises the steps of S1, preparing a structural block with an identity code groove, S2, preparing a protective shell and a movable bottom plate, S3, filling the identity code groove in the structural block in the S1, S4, firstly filling the interior of the protective shell with a high polymer material and curing the high polymer material, then placing the filled structural block in the protective shell subjected to preliminary filling, continuing to fill the protective shell, and S5, filling the protective block with the movable bottom plate. And after the structural block is completely covered, curing is conducted, the movable bottom plate is detached, and the surface is polished to be flat. The problems that radio frequency identification, intelligent cards and the like are faced with the risks of failure and leakage in an extreme environment due to the existence of electronic components, and meanwhile, special radio frequency identification tags researched at present are relatively high in manufacturing cost and are not beneficial to popularization and application are solved.

Description

Technical Field

[0001] This invention relates to the field of tag technology, and more specifically to a method for preparing a magnetic identification tag and the tag structure. Background Technology

[0002] In production operations, the management of equipment and tools is crucial for both production efficiency and quality. To improve efficiency and reduce costs, identification technology can be used to manage equipment and tools during production. Specifically, the following identification technologies can be employed: 1. Barcode technology: Barcodes are affixed to equipment and tools, and their usage and location information are recorded by scanning the barcodes. This technology is simple, easy to implement, and low in cost, but the barcode information needs to be updated regularly.

[0003] 2. Radio Frequency Identification (RFID) Technology: By attaching RFID tags to equipment and tools, RFID readers are used to record the usage and location information of the equipment and tools. This technology can achieve long-distance, automated identification and tracking, but the durability and anti-interference ability of the RFID tags need to be considered.

[0004] 3. Smart Card Technology: Information about equipment and tools is written into smart cards, and their usage and location information are recorded using a smart card reader. This technology offers high security and accuracy, but the cost and ease of use of smart cards need to be considered.

[0005] The adoption of identity verification technology can improve the efficiency and accuracy of equipment and tool management, reduce production costs, and improve product quality. At the same time, the security and privacy protection of identity verification technology need to be considered to prevent data leakage and misuse.

[0006] In certain specific application environments, the confidentiality of equipment and tools is crucial, and these equipment and tools often face extreme operating conditions, including high temperatures, high pressures, and strong corrosion. In such cases, exposed methods such as nameplates, barcodes, and QR codes pose a risk of information leakage. Furthermore, RFID and smart cards, due to their electronic components, are at risk of failure in extreme environments. Additionally, the currently researched specialized RFID tags have high manufacturing costs, hindering their widespread application.

[0007] Chinese invention patent document CN116663598A, published on August 29, 2023, discloses a method for manufacturing a radio frequency (RFID) tag suitable for downhole drilling tools. The method involves: a) processing a protective shell and a polyetheretherketone (PEEK) base, and then installing the shaped PEEK base into the protective shell; b) processing an RFID antenna, connecting the chip and the shaped RFID antenna, and placing it in the PEEK base; c) using a potting mold to fused the PEEK material with the PEEK base under high temperature, forming a fully enclosed enclosure for the RFID antenna, and then polishing the potting surface smooth; d) sealing a transparent protective cover onto the protective shell after potting, thus obtaining the RFID tag. This invention employs a specific potting process, and the resulting RFID tag is suitable for specific downhole environments of 200℃ and 200MPa, ensuring long-term stability. However, due to the internal design of electronic components, the above-mentioned technical solutions cannot guarantee the stability of materials in environments with higher temperatures, humidity, pressure, and corrosion. At the same time, they have higher requirements for injection molding processes and the performance of injection molding materials, resulting in higher costs. Furthermore, the above-mentioned technical solutions involve polymer material injection molding and filling processes, and the high-temperature and high-pressure fluid injection can affect chips, ceramics, and the chip-antenna welding parts, which can easily lead to failure. Summary of the Invention

[0008] In order to overcome the defects and shortcomings of the existing technologies, the present invention provides a method for preparing magnetic identification tags and a tag structure, which solves the problem that radio frequency identification and smart cards, due to the presence of electronic components, may face the risk of failure in extreme environments. At the same time, the manufacturing cost of the special radio frequency identification tags currently being studied is high, which is not conducive to their widespread application.

[0009] To address the problems existing in the prior art, the present invention is achieved through the following technical solution.

[0010] A method for preparing a magnetic identification tag includes the following steps: S1. Prepare a structural block with an identification code groove; the structural block is divided into a magnetic metal structural block, a magnetic non-metal structural block, a non-magnetic non-metal structural block, and a non-magnetic metal structural block; the identification code includes types such as digital code, QR code, and barcode; S2. Prepare the protective shell and the movable base plate; the protective shell is processed into a hollow tube, and a groove matching the protective shell is processed on the movable base plate, and the protective shell is fixed in the groove of the movable base plate; the height H of the protective shell is greater than the height h of the structural block; S3. Fill the identification code groove on the structural block described in S1. When the structural block is a magnetic metal structural block or a magnetic non-metal structural block, use a non-magnetic material to fill it; when the structural block is a non-magnetic non-metal structural block or a non-magnetic metal structural block, use a magnetic material to fill it. S4. After the identification code groove is filled, first use a polymer material to fill and cure the inside of the protective shell. The filling height should be greater than 0 and less than [missing information]. Then, the filled structural block is placed inside the protective shell after initial filling, and the structural block is kept at the same distance from the inner wall of the protective shell. After filling with polymer material and ensuring that the polymer material completely covers the structural block, it is cured. The movable base plate is then removed and the surface is polished smooth to obtain a magnetic identification tag.

[0011] In S1, the magnetic metal material structure block refers to the magnetic metal powder being melted into the shape of an identity code using a high-energy laser beam through powder laser printing technology, and the magnetic metal material structure block is constructed by stacking layers one by one. In S1, the magnetic non-metallic structural block refers to a 3D printing raw material prepared by mixing magnetic or strongly magnetic non-metallic powder with polymer materials in a specific ratio, then solidifying the 3D printing raw material layer by layer into the required shape through photopolymerization 3D printing technology, and finally sintering it at high temperature to form a magnetic metal structural block.

[0012] In S1, the non-magnetic non-metallic structural block refers to a non-magnetic non-metallic structural block constructed by using 3D printing technology with resin or high-temperature resistant, wear-resistant, or corrosion-resistant polymer materials.

[0013] In S1, the non-magnetic metal structural block refers to a non-magnetic metal structural block constructed by layering non-magnetic metal powder using powder melting printing technology.

[0014] In step S3, when a non-magnetic material is used for filling, the non-magnetic material is directly filled and cured according to the shape of the ID code groove.

[0015] In step S3, when magnetic material is used for filling, if the structural block is a non-magnetic metal structural block, magnetic metal powder is filled into the identity code groove and then cured at high temperature; if the structural block is a non-magnetic non-metallic structural block, the pre-formed block is used to fill the identity code groove.

[0016] The formed block refers to several blocks that can match the groove of the identity code.

[0017] S4 also includes, if the selected magnetic material is ferromagnetic, the magnetic identification tag needs to be magnetized by an external magnetic environment.

[0018] A magnetic identification tag includes a protective shell, a protective layer, a structural block, and an identification code filling block. The structural block has an identification code groove for matching the identification code filling block. The identification code filling block is fixed on the structural block according to the matching identification code groove. The structural block is wrapped with a protective layer, and the outer wall of the protective layer is provided with a protective shell. The structural block and the identification code filling block are made of magnetic material and non-magnetic material, respectively, or the structural block and the identification code filling block are made of non-magnetic material and magnetic material, respectively.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are as follows: 1. This invention, because the tag does not involve electronic components, has a simple manufacturing process with low process requirements, and can be mass-produced at a low cost. Furthermore, since it does not involve electronic components, the magnetic identification tag manufactured by this invention still exhibits excellent stability under high temperature, high humidity, high pressure, and corrosive environments. This invention also avoids the problem of high-temperature, high-pressure fluid injection molding affecting the chip, ceramic, and chip-antenna welding points in RFID tags, thus preventing failure. It also avoids the problem of deformation caused by inconsistent elasticity between different polymer materials in RFID tags, leading to failure of internal chips, antennas, and welding points. 2. The label produced by the method of the present invention has different magnetic properties between the structure and the identification code filling block. The identification code pattern can be restored by scanning and recognizing the magnetic signal. The identification code can then be recognized by the system to obtain the identification information of the equipment and tools. The identification method is simple.

[0020] 3. In this invention, a polymer material is first used to fill and solidify the interior of the protective shell, with a filling height greater than 0 and less than [missing information]. The filled structural block is then placed inside the pre-filled protective shell, with equal spacing between the structural block and the inner wall of the protective shell. After filling with polymer material and ensuring that the polymer material completely covers the structural block, it is cured, so that the filled structural block is wrapped with a protective layer. This prevents the internal identification code information from being damaged and thus becoming unrecognizable, while also preventing the QR code from being exposed to the outside and causing leakage. Since identification is based on magnetic signals, the protective layer only needs to be non-magnetic, further reducing costs. Attached Figure Description

[0021] Figure 1 This is a flowchart of the method of the present invention; Figure 2 This is a schematic diagram of the cross-section of the identity code in Example 2; Figure 3 This is a top view of the structural block of the present invention, where the identification code is a digital code.

[0022] The diagram is marked with: 1. Structural block, 2. Identification code filling block, 3. Protective layer, 4. Protective shell. Detailed Implementation

[0023] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1 As a preferred embodiment of the present invention, this embodiment discloses a method for preparing a magnetic identification tag, the method comprising the following steps: S1. Prepare a structural block with an identification code groove; the structural block is divided into a magnetic metal structural block, a magnetic non-metal structural block, a non-magnetic non-metal structural block, and a non-magnetic metal structural block; S2. Prepare the protective shell and the movable base plate; the protective shell is processed into a hollow tube, and a groove matching the protective shell is processed on the movable base plate, and the protective shell is fixed in the groove of the movable base plate; the height H of the protective shell is greater than the height h of the structural block; S3. Fill the identification code groove on the structural block described in S1. When the structural block is a magnetic metal structural block or a magnetic non-metal structural block, use a non-magnetic material to fill it; when the structural block is a non-magnetic non-metal structural block or a non-magnetic metal structural block, use a magnetic material to fill it. S4. After the identification code groove is filled, first use a polymer material to fill and cure the inside of the protective shell. The filling height should be greater than 0 and less than [missing information]. Then, the filled structural block is placed inside the protective shell after initial filling, and the structural block is kept at the same distance from the inner wall of the protective shell. After filling with polymer material and ensuring that the polymer material completely covers the structural block, it is cured. The movable base plate is then removed and the surface is polished smooth to obtain a magnetic identification tag.

[0025] This invention, because the tag does not involve electronic components, has a simple manufacturing process with low requirements, enabling mass production and low manufacturing costs. Furthermore, since it does not involve electronic components, the magnetic identification tag manufactured by this invention maintains excellent stability under high temperature, high humidity, high pressure, and corrosive environments. This invention also avoids the problems of high-temperature, high-pressure fluid injection molding affecting chips, ceramics, and chip-antenna welding points in RFID tags, thus preventing failure. It also avoids the problem of deformation caused by inconsistent elasticity between different polymer materials in RFID tags, leading to failure of internal chips, antennas, and welding points. Moreover, the filled structural block is wrapped with a protective layer to prevent damage to the internal identification code information, thus preventing identification failure, and also preventing the QR code from being exposed and leaking information. Since identification is based on magnetic signals, the protective layer only needs to be non-magnetic, further reducing costs.

[0026] Example 2 As another preferred embodiment of the present invention, this embodiment discloses a method for preparing a magnetic identification tag, the method comprising the following steps: S1. Prepare a structural block with an identification code groove; the structural block is divided into a magnetic metal structural block, a magnetic non-metal structural block, a non-magnetic non-metal structural block, and a non-magnetic metal structural block; the identification code is a barcode; The magnetic metal material structural block refers to the magnetic metal powder being melted into the shape of an identity code using a high-energy laser beam through powder laser printing technology, and then the magnetic metal material structural block is constructed by stacking layers one by one. The magnetic non-metallic structural block refers to a 3D printing raw material prepared by mixing magnetic or strongly magnetic non-metallic powder with polymer materials in a specific ratio, then solidifying the 3D printing raw material layer by layer into the required shape through photopolymerization 3D printing technology, and finally sintering it at high temperature to form a magnetic metal structural block.

[0027] The non-magnetic non-metallic structural block refers to a non-magnetic non-metallic structural block constructed using 3D printing technology from resin or high-temperature resistant, wear-resistant, or corrosion-resistant polymer materials.

[0028] The non-magnetic metal structural block refers to a non-magnetic metal structural block constructed by layering non-magnetic metal powder using powder melting printing technology.

[0029] S2. Prepare the protective shell and the movable base plate; the protective shell is processed into a hollow tube, and a groove matching the protective shell is processed on the movable base plate, and the protective shell is fixed in the groove of the movable base plate; the height H of the protective shell is greater than the height h of the structural block; S3. Fill the identification code groove on the structural block described in S1. When the structural block is a magnetic metal structural block or a magnetic non-metal structural block, use a non-magnetic material to fill it; when the structural block is a non-magnetic non-metal structural block or a non-magnetic metal structural block, use a magnetic material to fill it. When using non-magnetic material for filling, the non-magnetic material is directly filled and cured according to the shape of the ID code groove.

[0030] When using magnetic materials for filling, if the structural block is a non-magnetic metal structural block, magnetic metal powder is filled into the identification code groove and then cured at high temperature; if the structural block is a non-magnetic non-metallic structural block, a pre-formed block is used to fill the identification code groove.

[0031] The formed block refers to several blocks that can match the groove of the identity code.

[0032] S4. After the identification code groove is filled, first use a polymer material to fill and cure the inside of the protective shell. The filling height should be greater than 0 and less than [missing information]. Then, the filled structural block is placed inside the protective shell after initial filling, and the structural block is kept at the same distance from the inner wall of the protective shell. After filling with polymer material and ensuring that the polymer material completely covers the structural block, it is cured. The movable base plate is then removed and the surface is polished smooth to obtain a magnetic identification tag.

[0033] It also includes the requirement that if the selected magnetic material is ferromagnetic, the magnetic identification tag must be magnetized through an external magnetic environment.

[0034] Since the tags do not involve electronic components, the related manufacturing process is simple, the process requirements are not high, and mass production is possible with low manufacturing costs. Furthermore, because no electronic components are involved, the magnetic identification tags manufactured by the method of this invention still possess excellent stability under high temperature, high humidity, high pressure, and corrosive environments. This invention also avoids the problem of high-temperature, high-pressure fluid injection molding affecting the chip, ceramic, and chip-antenna welding points in RFID tags, thus preventing failure. It also avoids the problem of deformation caused by inconsistent elasticity between different polymer materials in RFID tags, which could lead to failure of the internal chip, antenna, and welding points.

[0035] By using a specific ratio, the magnetic identification effect of the final product can be optimized.

[0036] Example 3 In another preferred embodiment of the present invention, a magnetic identification tag includes a protective shell 4, a protective layer 3, a structural block 1, and an identification code filling block 2. The structural block 1 is provided with an identification code groove for matching the identification code filling block 2. The identification code filling block 2 is fixed on the structural block 1 according to the matching identification code groove. The structural block 1 is wrapped with a protective layer 3, and the outer wall of the protective layer 3 is provided with a protective shell 4. The structural block 1 and the identification code filling block 2 are respectively made of magnetic material and non-magnetic material, or the structural block 1 and the identification code filling block 2 are respectively made of non-magnetic material and magnetic material.

[0037] The label produced by the method of this invention has a different magnetic properties between the structural body and the identification code filling block. The identification code pattern can be restored by scanning and recognizing the magnetic signal. The identification code is then recognized by the system to obtain the identification information of the equipment and tools. The identification method is simple. In addition, the structural block is wrapped with a protective layer, which can prevent the internal identification code information from being damaged and thus unable to be identified. At the same time, it can prevent the QR code from being exposed to the outside and causing leakage. Since the identification is based on magnetic signals, the protective layer only needs to be non-magnetic, which further reduces the manufacturing cost of the label.

Claims

1. A method for preparing a magnetic identification tag, characterized in that, Includes the following steps: S1. Prepare a structural block with an identification code groove; the structural block is divided into a magnetic metal structural block, a magnetic non-metal structural block, a non-magnetic non-metal structural block, and a non-magnetic metal structural block; the identification code includes types such as digital code, QR code, and barcode; S2. Prepare the protective shell and the movable base plate; the protective shell is processed into a hollow tube, and a groove matching the protective shell is processed on the movable base plate, and the protective shell is fixed in the groove of the movable base plate; the height H of the protective shell is greater than the height h of the structural block; S3. Fill the identification code groove on the structural block described in S1. When the structural block is a magnetic metal structural block or a magnetic non-metal structural block, use a non-magnetic material to fill it; when the structural block is a non-magnetic non-metal structural block or a non-magnetic metal structural block, use a magnetic material to fill it. S4. After the identification code groove is filled, first use a polymer material to fill and cure the inside of the protective shell. The filling height should be greater than 0 and less than [missing information]. Then, the filled structural block is placed inside the protective shell after initial filling, and the structural block is kept at the same distance from the inner wall of the protective shell. After filling with polymer material and ensuring that the polymer material completely covers the structural block, it is cured. The movable base plate is then removed and the surface is polished smooth to obtain a magnetic identification tag.

2. The method for preparing a magnetic identification tag according to claim 1, characterized in that: In S1, the magnetic metal material structure block refers to the magnetic metal powder being melted into the shape of an identity code using a high-energy laser beam through powder laser printing technology, and the magnetic metal material structure block is constructed by stacking layers one by one.

3. The method for preparing a magnetic identification tag according to claim 1, characterized in that: In S1, the magnetic non-metallic structural block refers to a 3D printing raw material prepared by mixing magnetic or strongly magnetic non-metallic powder with polymer materials in a specific ratio, then solidifying the 3D printing raw material layer by layer into the required shape through photopolymerization 3D printing technology, and finally sintering it at high temperature to form a magnetic metal structural block.

4. The method for preparing a magnetic identification tag according to claim 1, characterized in that: In S1, the non-magnetic non-metallic structural block refers to a non-magnetic non-metallic structural block constructed by using 3D printing technology with resin or high-temperature resistant, wear-resistant, or corrosion-resistant polymer materials.

5. The method for preparing a magnetic identification tag according to claim 1, characterized in that: In S1, the non-magnetic metal structural block refers to a non-magnetic metal structural block constructed by layering non-magnetic metal powder using powder melting printing technology.

6. The method for preparing a magnetic identification tag according to claim 1, characterized in that: In step S3, when a non-magnetic material is used for filling, the non-magnetic material is directly filled and cured according to the shape of the ID code groove.

7. The method for preparing a magnetic identification tag according to claim 1, characterized in that: In step S3, when magnetic material is used for filling, if the structural block is a non-magnetic metal structural block, magnetic metal powder is filled into the identity code groove and then cured at high temperature; if the structural block is a non-magnetic non-metallic structural block, the pre-formed block is used to fill the identity code groove.

8. The method for preparing a magnetic identification tag according to claim 1, characterized in that: The formed block refers to several blocks that can match the groove of the identity code.

9. The method for preparing a magnetic identification tag according to claim 1, characterized in that: S4 also includes, if the selected magnetic material is ferromagnetic, the magnetic identification tag needs to be magnetized by an external magnetic environment.

10. A magnetic identification tag, characterized in that: The device includes a protective shell (4), a protective layer (3), a structural block (1), and an identification code filling block (2). The structural block (1) is provided with an identification code groove for matching the identification code filling block (2). The identification code filling block (2) is fixed on the structural block (1) according to the matching identification code groove. The structural block (1) is wrapped with a protective layer (3). The outer wall of the protective layer (3) is provided with a protective shell (4). The structural block (1) and the identification code filling block (2) are respectively made of magnetic material and non-magnetic material, or the structural block (1) and the identification code filling block (2) are respectively made of non-magnetic material and magnetic material.

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