Magnetic display substrate and method for producing same, display article and display stand

Abstract

A magnetic display substrate and its preparation method, display products, and display rack are disclosed, including a support layer; the support layer has a plurality of regularly distributed mounting holes, each mounting hole penetrating at least one of two opposing surfaces of the support layer; and a plurality of magnets are fixedly embedded in the mounting holes, making the two opposing surfaces of the support layer magnetic. This invention enables double-sided magnetic attraction, meeting the needs of double-sided display, and allows for easy assembly and disassembly of displayed items, thereby improving the safety, flexibility, and aesthetics of the display.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display substrates, in particular to a magnetic display substrate and a preparation method thereof, a display article and a display rack. BACKGROUND

[0002] The display and storage of badges, medals and the like are widely used in daily use, collection and cultural and creative product fields. At present, such articles are mostly fixed on softwood boards, foam boards and the like flexible boards by directly inserting pins into the boards.

[0003] The above-mentioned traditional display method has many deficiencies in actual use:

[0004] Firstly, the repeated insertion and removal of pins will leave a large number of pinhole marks on the softwood board, foam board and the like display substrate, which cannot be easily repaired and affects the repeated use and overall appearance of the substrate.

[0005] Secondly, the display position is difficult to adjust flexibly. Once the article is fixed by inserting or pasting, the position cannot be changed at will. If it needs to be rearranged, it needs to be inserted again or pasted again, which is tedious.

[0006] Thirdly, when using pins to fix, the user needs to directly touch and press the sharp end, which is easy to cause finger injury. Long-term repeated insertion and removal will also cause the pins to deform and loosen, making the sharp part exposed, which poses a safety risk to the user, especially to teenagers and children.

[0007] To solve the above problems, various magnetic display carriers have appeared on the market. Such carriers usually have magnets on one side of the substrate, which can only realize single-sided magnetic fixation, and the display form and arrangement are relatively single, which is difficult to meet the diversified display needs. SUMMARY

[0008] The main purpose of the present application is to overcome the defects of the prior art, such as easy damage to the substrate, inconvenient position adjustment, and single-sided magnetic attraction of the existing magnetic carrier, and to provide a magnetic display substrate and a preparation method thereof, a display article and a display rack, which can realize double-sided magnetic attraction, meet the double-sided display needs, and facilitate the disassembly and assembly of display articles, thereby improving the safety, flexibility and aesthetics of display use.

[0009] The present application adopts the following technical solutions:

[0010] A magnetic display substrate comprises a support layer, a plurality of regularly distributed mounting holes are provided on the support layer, the mounting holes at least penetrate one of the two opposite surfaces of the support layer, and a plurality of magnets are fixedly embedded in the mounting holes, so that the two opposite surfaces of the support layer have magnetism.

[0011] A magnetic display substrate includes a support layer and a plurality of magnets. The support layer and the magnets are integrally formed by injection molding or compression molding. The magnets are embedded between two opposite surfaces of the support layer and are regularly distributed so that the two opposite surfaces of the support layer are magnetic.

[0012] It also includes at least one overlay layer, which is attached and fixed to the corresponding through surface of the support layer to seal the magnet in the mounting hole.

[0013] The thickness of the composite layer is 0.5mm-5mm, and the material of the composite layer is at least one of film, leather, fabric, coating or paper.

[0014] The thickness of the support layer is 1.5mm-30mm, and the material is at least one of non-magnetic polymer board, polymer foam board or plastic board.

[0015] The magnets are arranged in a matrix, at equal intervals, or in a ring; the cross-sectional size of the magnets is 8mm to 12mm, and the spacing between adjacent magnets is 12mm to 20mm; the distance from the magnetic end face of the magnet to the corresponding non-penetrated surface of the support layer is no more than 5mm.

[0016] The magnet is fixed in the mounting hole by at least one of the following methods: interference fit, bonding, or compression fit, and the magnetic end face of the magnet is flush with the corresponding through end face of the mounting hole.

[0017] A display product includes a carrier body having an installation cavity with a display area, and a magnetic display substrate inside the installation cavity, wherein the surface of the support layer of the display substrate corresponds to the display area.

[0018] A display rack includes a frame or support base, the frame or support base being provided with a mounting groove; it also includes a magnetic display substrate, the display substrate being adapted to be installed in the mounting groove.

[0019] A method for preparing a magnetic display substrate includes the following steps:

[0020] A number of regularly distributed mounting holes are formed on the support layer, and the mounting holes penetrate one of the two opposing surfaces of the support layer; a magnet is correspondingly embedded in the mounting hole so that both surfaces of the support layer are magnetic; a coating layer is fixed on the corresponding penetrating surface of the support layer to seal the magnet inside the mounting hole.

[0021] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In this invention, by setting at least one of the two opposing surfaces of the support layer through the mounting hole, and fixing the magnet in the mounting hole, both the front and back surfaces of the support layer form magnetic attraction surfaces, realizing double-sided magnetic attraction function. This can make full use of the surface space of the substrate and flexibly realize single-sided display or double-sided simultaneous display, expanding the display usage forms.

[0023] 2. In this invention, several magnets are integrally formed between the two opposite surfaces of the support layer by injection molding or compression molding and are regularly distributed so that the two opposite surfaces of the support layer have magnetism, realizing the double-sided magnetic attraction function. This can make full use of the surface space of the substrate and can flexibly realize single-sided display or double-sided simultaneous display, thus expanding the display usage forms.

[0024] 3. In this invention, the magnet end face and the mounting hole end face can be flexibly matched in a flush, concave or convex manner, which can adapt to different display scenarios and assembly requirements. The slight concavity and convexity will not affect the stable placement of the displayed items, nor will it weaken the magnetic attraction effect, thus taking into account both the flatness of the display and the reliability of the magnetic attraction.

[0025] 4. In this invention, by setting a coating layer on the corresponding through surface of the support layer to seal the magnet in the mounting hole, it can effectively prevent the magnet from loosening or falling off, improve the installation stability of the magnet and the integrity of the substrate structure, and make the substrate surface continuous and flat, avoiding the magnet from being exposed and causing scratches. At the same time, the coating layer material is thin and light, and has little impact on the magnetic attraction force.

[0026] 5. In this invention, the support layer is made of non-magnetic polymer board, polymer foam board or plastic board, which can avoid shielding or interfering with the magnetic field of the magnet, and ensure that the magnetic attraction force is stably transmitted to the surface of the substrate. At the same time, the material is lightweight, easy to process and moderately priced. With the regularly distributed mounting holes and magnets, the magnetic attraction points can be evenly arranged to ensure that the adsorption of the displayed items is stable and reliable.

[0027] 6. In this invention, the display substrate can be adapted and assembled into the mounting cavity of the display product or the mounting slot of the display rack, which can realize the quick magnetic fixation and free assembly and disassembly of the display items. It is convenient to use and does not easily damage the exhibits and carriers. The overall structure is neat, applicable to a wide range of scenarios, and has both storage and portable display functions, making it highly practical. Attached Figure Description

[0028] Figure 1 This is a structural diagram of the support layer of the present invention (Embodiment 1);

[0029] Figure 2 This is a structural diagram of the substrate of the present invention;

[0030] Figure 3 This is a structural diagram of the support layer of the present invention (circular distribution);

[0031] Figure 4 This is a structural diagram of the substrate of the present invention (Example 2).

[0032] Figure 5 This is a schematic diagram of the product (box) shown in Embodiment 3 of the present invention;

[0033] Figure 6 This is a schematic diagram of the product (package) shown in Embodiment 3 of the present invention;

[0034] Figure 7 This is a structural diagram (frame) of the display rack according to Embodiment 4 of the present invention.

[0035] Figure 8 This is a structural diagram (support base) of the display rack according to Embodiment 4 of the present invention.

[0036] Among them: 10, support layer; 11, mounting hole; 20, magnet; 30, coating layer; 40, display item; 50, carrier body; 51, display area; 52, mounting cavity; 60, frame; 70, support base.

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0038] The present invention will be further described below through specific embodiments.

[0039] Example 1

[0040] See Figures 1-3 A magnetic display substrate includes a support layer 10 and a plurality of magnets 20. The support layer 10 is a plate structure with moderate strength and a flat texture, and has a plurality of regularly distributed mounting holes 11. Each mounting hole 11 penetrates at least one of the two opposite surfaces of the support layer 10, that is, the mounting hole 11 is a through hole penetrating both opposite surfaces of the support layer 10, or a blind hole penetrating one of the two surfaces of the support layer 10. The shape of the mounting hole 11 is adapted to the shape of the magnet 20, providing a stable mounting and positioning space for the magnet 20. The magnet 20 is fixedly embedded in the mounting hole 11, so that the two surfaces of the support layer 10 form magnetic attraction surfaces, thereby realizing a double-sided magnetic attraction function.

[0041] In the case where the magnet 20 penetrates one of the two surfaces of the support layer 10, the distance from the magnetic end face of the magnet 20 to the corresponding non-penetrated surface of the support layer 10 is no more than 5 mm, ensuring that the non-penetrated surface is magnetic. By adopting the above-described structure of opening mounting holes 11 through at least one surface in the support layer 10 and embedding and fixing the magnet 20 accordingly, both the front and back surfaces of the display substrate can have magnetic attraction capabilities. This allows for the arrangement of display items 40 on one side of the substrate or simultaneous display on both sides, thereby making full use of the display space, effectively expanding the display format, and meeting the diverse usage needs of double-sided display and flexible arrangement.

[0042] The two magnetic end faces of the magnet 20 can be fitted with the corresponding end faces of the mounting holes 11 in various ways: the two magnetic end faces of the magnet 20 can be flush with the two end faces of the corresponding mounting holes 11; they can also be recessed into the two end faces of the corresponding mounting holes 11; or they can protrude from the two end faces of the corresponding mounting holes 11. The magnet 20 can be slightly concave or slightly convex. Because the amount of protrusion or concavity is small, it will not significantly affect the placement of the displayed items 40, nor will it weaken the magnetic attraction effect, and it can still meet the needs of normal display and use.

[0043] In this embodiment, taking the setting method of the magnetic extreme end face being flush with the end face of the mounting hole 11 as an example, this method can ensure that the two sides of the substrate are flat, so that the display item 40 can be stably attached, and can also avoid the magnet 20 protruding and causing scratches or excessive indentation and weakening of the magnetic attraction effect, thus taking into account both the aesthetics of the structure and the reliability of the magnetic attraction.

[0044] The thickness of the support layer 10 is 1.5mm-30mm. This thickness range ensures that the support layer 10 has sufficient structural strength to stably support the magnet 20 and provide reliable support for the displayed items 40, while avoiding excessive thickness that would make the substrate bulky and inconvenient to use. The thickness can be flexibly selected according to the actual display scenario requirements. If used for large-size or self-standing displays, the thickness of the support layer 10 can be 15-30mm, and the magnet 20 can adopt a multi-layer stacked structure (such as two magnets stacked together) or a large aspect ratio structure (such as a long strip) to enhance the magnetic field penetration.

[0045] The support layer 10 is made of at least one of the following: non-magnetic polymer sheet, polymer foam sheet, or plastic sheet. Using a non-magnetic material avoids interference with the magnetic attraction performance of the magnet 20, ensuring that the magnetic force of the magnet 20 can be smoothly transmitted to the substrate surface. This type of material also has advantages such as lightweight, easy processing, and moderate cost, making it suitable for various applications including daily display and collection. Examples of non-magnetic polymer sheets include acrylic (plexiglass / PMMA), polycarbonate (PC), and polyvinyl chloride (PVC) rigid sheets. Polymer foamed sheets have a porous foam structure, resulting in lighter overall weight and better toughness. They can reduce the overall weight of the substrate while ensuring support strength. Examples include foamed polypropylene (EPP, XPP), foamed polystyrene (EPS, XPS), foamed polyvinyl chloride (PVC), foamed polyethylene (EPE), foamed polyurethane (PU), and foamed polycarbonate (PC). Plastic sheets are conventionally molded plastic sheets with excellent processing performance and economical cost. They can meet the needs of mass production and perforation processing. Examples include polypropylene (PP) sheets, polyethylene (PE) sheets, ABS sheets, and PVC sheets.

[0046] The support layer 10 can adopt two structural forms: one is an integral molding structure, in which the mounting hole 11 extends along the thickness direction of the support layer 10 and penetrates at least one surface. This structure has good integrity, simple processing steps, and high structural stability; the other is a composite molding structure, in which the support layer 10 includes at least two sub-layers. Each sub-layer is compositely fixed into one piece by bonding, adhesive or other methods. The mounting hole 11 simultaneously penetrates each or part of the sub-layers. This structure can flexibly select sub-layers of different materials and thicknesses to combine according to actual usage requirements.

[0047] A number of mounting holes 11 can be flexibly arranged on the support layer 10 according to the usage requirements, specifically in a matrix distribution, an equal-spaced distribution, or a ring distribution. The regular arrangement makes the magnetic attraction points on the substrate surface evenly distributed, ensuring that the displayed items 40 can obtain a stable and reliable adsorption effect in different positions.

[0048] Among them, matrix distribution refers to the arrangement of mounting holes 11 in rows and columns along the horizontal and vertical directions, which allows the magnetic attraction points to form a regular planar array on the support layer 10, facilitating the orderly arrangement of displayed items 40 by area; uniform distribution with equal spacing means that the distance between two adjacent mounting holes 11 remains consistent, ensuring uniform magnetic attraction density throughout the substrate surface and guaranteeing balanced overall adsorption force; ring distribution means that each mounting hole 11 is arranged sequentially along the circumference with a center point on the support layer 10 as a reference, suitable for special-shaped substrates such as circles and arcs, or for application scenarios where display needs to be around a central area, see [link to relevant documentation]. Figure 3 .

[0049] Based on this, the shape of the mounting holes 11 can be circular, square, rectangular, racetrack-shaped, etc. The diameter of the mounting holes 11 is 8mm-12mm, for example, 10mm; the spacing between adjacent mounting holes 11 is 12mm-20mm. This size and spacing setting can ensure that the support layer 10 has sufficient structural strength, avoiding insufficient local strength of the support layer 10 due to excessively dense openings, and can also make the magnetic attraction points moderately spaced, taking into account both adsorption stability and the overall structural reliability of the substrate.

[0050] Accordingly, the cross-sectional dimensions of the magnet 20 are adapted to the diameter of the mounting hole 11. The cross-sectional dimensions of the magnet 20 are 8mm-12mm, and the spacing between adjacent magnets 20 is 12mm-20mm. The magnet 20 is fixed in the mounting hole 11 by at least one of the following methods: interference fit, bonding, or compression fit. When an interference fit is used, the cross-sectional dimensions of the magnet 20 can be slightly larger than the diameter of the mounting hole 11 (e.g., 0.1mm-0.2mm), and the tight fit is achieved by relying on the dimensional fit between the two to ensure that the magnet 20 is not easily loosened or displaced in the mounting hole 11. When bonding or compression fit is used, the cross-sectional dimensions of the magnet 20 are adapted to the diameter of the mounting hole 11, and the fixation is achieved by bonding with adhesive or external structural compression.

[0051] To further secure the magnet 20 and ensure the integrity of the substrate surface, a laminating layer 30 is also included. The laminating layer 30 is adhered and fixed to the surface of the support layer 10 to seal the magnet 20 within the mounting hole 11, thus confining the magnet 20 between the support layer 10 and the laminating layer 30, preventing it from being directly exposed. This encapsulation structure enhances the installation stability of the magnet 20, preventing it from loosening or falling off during use, and also ensures a continuous and flat substrate surface, improving the overall integrity and aesthetics of the structure.

[0052] The thickness of the laminating layer 30 is 0.5mm-5mm, which can be set according to actual usage requirements. This thickness can reliably encapsulate the magnet 20 without weakening the magnetic attraction effect due to excessive thickness. The material of the laminating layer 30 is at least one of film, leather, cloth, coating, or paper. All of the above materials have the characteristics of being lightweight, flexible, and easy to adhere and fix. They can be tightly adhered to the surface of the support layer 10 and seal the magnet 20, without significantly obstructing the magnetic attraction force, while making the substrate surface smooth and flat, preventing the magnet 20 from being exposed, and improving the overall structure of the display substrate.

[0053] In this embodiment, the composite layer 30 can be tightly bonded and fixed to the two surfaces of the support layer 10 by means of bonding, hot pressing, or composite molding. A continuous and firm bonding interface is formed between the composite layer 30 and the support layer 10, completely encapsulating the magnet 20 inside the mounting hole 11. During assembly, the magnet 20 can be stably embedded in the mounting hole 11 of the support layer 10 first, and then the composite layer 30 can be smoothly laid on the surface of the support layer 10 and uniform pressure or heat can be applied to make the composite layer 30 fully bonded to the support layer 10, thereby achieving reliable positioning and sealing protection for the magnet 20.

[0054] To further enhance performance and appearance, the outermost surface of the composite layer 30 can also be provided with anti-slip or decorative surface structures. Anti-slip surface structures include frosted textures, embossed dots, anti-slip films, or anti-slip coatings, which can increase the frictional resistance between the displayed item 40 and the substrate surface, reducing the risk of slippage or misalignment. Decorative surface structures include UV-printed patterns, heat transfer patterns, painted layers, electroplated layers, decorative films, or etched textures, which can enrich the appearance of the substrate and meet the decorative and display needs of different scenarios. These anti-slip and decorative structures can be used individually or in combination to balance anti-slip performance with aesthetic appeal.

[0055] Example 2

[0056] See Figure 4 This embodiment proposes another magnetic display substrate, including a support layer 10 and several magnets 20. The core difference between this embodiment and the first embodiment is that the support layer 10 does not have mounting holes 11, eliminating the need to fix the magnets 20 through openings and embedding. Instead, a one-piece molding process is used to achieve a fixed connection between the support layer 10 and the magnets 20. The specific structure is as follows:

[0057] The support layer 10 and a plurality of magnets 20 are integrally formed by injection molding or compression molding. The magnets 20 are embedded between the two opposite surfaces of the support layer 10 and are regularly distributed so that the two opposite surfaces of the support layer 10 are magnetic. This achieves a double-sided magnetic attraction function, meeting the diverse usage needs of single-sided or double-sided display.

[0058] The material, specifications, and arrangement of the magnet 20, as well as the non-magnetic polymer or plastic material used in the support layer 10, can be the same as in Example 1. The magnet 20 is located between two opposing surfaces of the support layer 10, and the distance from the magnetic end face of the magnet 20 to the corresponding surface of the support layer 10 is no more than 5 mm, so as to ensure that the magnetic field can effectively penetrate to the surface of the substrate and form a stable double-sided magnetic attraction effect.

[0059] This embodiment adopts an integral molding structure, which eliminates the process of drilling holes and embedding magnets 20, making the processing flow simpler and the production efficiency higher. In addition, the magnets 20 are completely covered and fixed, resulting in good overall structural strength and connection reliability.

[0060] Example 3

[0061] This embodiment also proposes a display item, see [link / reference] Figures 5-6 The system includes a carrier body 50, which has a mounting cavity 52. ​​The mounting cavity 52 has a display area 51, which can be made of transparent material or have a hollow design, allowing direct observation of the interior of the mounting cavity 52. ​​The mounting cavity 52 contains a magnetic display substrate as described in Embodiment 1 or Embodiment 2, and the surface of the support layer 10 of the display substrate corresponds to the display area 51. This allows for both magnetic display via the display substrate and the presentation of the displayed items 40 on the substrate through the display area 51.

[0062] In this embodiment, the carrier body 50 can be in various structural forms such as a box or a package. When the carrier body 50 is a display box, the mounting cavity 52 is the cavity inside the box, the display area 51 is the transparent area or cutout window on the box panel, the display substrate is embedded in the mounting cavity 52, and the display item 40 is magnetically attracted to the substrate and faces the transparent area to form a stable display.

[0063] When the carrier body 50 is a display bag, the mounting cavity 52 is a receiving space enclosed by the bag's fabric, the display area 51 is a transparent viewing area or an open cutout area set on the surface of the bag, the display substrate is fixed inside the viewing area, and the display item 40 is magnetically attached to the substrate and can be exposed through the display area 51, thus realizing a portable and mobile display.

[0064] In this embodiment, by embedding a double-sided magnetic display substrate in the carrier body 50, the display items 40 can be flexibly magnetically fixed and quickly disassembled and placed, which is convenient to use and does not easily damage the exhibits and the carrier. Combined with the transparent or hollowed-out display area 51, the exhibits can be clearly presented, while ensuring that the overall structure is neat, beautiful, stable and reliable. It is suitable for various usage scenarios such as storage display and portable display, and has strong practicality.

[0065] In this embodiment, the display substrate is placed inside the box or bag and can be securely connected to the carrier body 50 by means of adhesive, snap-fit, or magnetic attraction. For example, it can be bonded to the inner lining of the bag with adhesive, or the magnet 20 embedded in the display substrate can be attracted and fixed to the ferromagnetic components on the carrier body 50, which is simple to assemble and has reliable positioning.

[0066] Example 4

[0067] Based on this, see Figures 7-8This embodiment also proposes a display rack, including a frame 60 or a support base 70, on which an installation groove for assembly is provided; it also includes a magnetic display substrate of embodiment one or embodiment two, which is adapted to be installed in the installation groove to form an integral magnetic display structure, which facilitates the direct adsorption and placement of the display items 40.

[0068] When the display rack adopts the form of frame 60, the frame 60 can be formed by splicing profiles or enclosing panels, and the whole is rectangular, square or other shapes adapted to the display scene. The mounting groove is opened along the inner side of the frame 60 and forms a continuous or segmented limiting structure. The display substrate is embedded in the mounting groove on the inner side of the frame 60, so that the display rack can be placed upright or wall-mounted, and is suitable for wall display, booth display and other scenarios.

[0069] In addition to being directly embedded in the mounting groove for positioning, the display substrate can be further secured using screws, adhesives, or other methods. All of these methods ensure a reliable connection while facilitating the disassembly and replacement of the display substrate.

[0070] When the display rack adopts the form of support base 70, the support base 70 has a stable supporting bottom surface and an upwardly extending supporting part. The mounting groove is opened on the supporting part of the support base 70. The display substrate is installed vertically or inclined in the mounting groove and relies on the support base 70 to be placed directly on the table to achieve stable support. The overall structure is simple and flexible in placement, and it is suitable for flat display scenarios such as desktops and counters.

[0071] In this embodiment, the structural design of the frame 60 or support base 70 combined with the built-in magnetic display substrate enables the display items 40 to be quickly magnetically fixed and freely placed, and is easy to assemble and disassemble; the overall structure is stable and regular, and can be displayed upright or wall-mounted, making it suitable for a wide range of scenarios.

[0072] Example 5

[0073] Based on this, this embodiment also proposes a method for preparing a magnetic display substrate, used to prepare the substrate of Example 1, comprising the following steps:

[0074] S1 forms a plurality of regularly distributed mounting holes 11 on the support layer 10, wherein the mounting holes 11 penetrate at least one of the two opposite surfaces of the support layer 10.

[0075] In this step, at least one of non-magnetic polymer board, polymer foam board or plastic board is selected as raw material and cut into a support layer 10 of a preset size. Then, a number of regularly distributed mounting holes 11 are processed on the support layer 10 by drilling, punching and other processing methods. The mounting holes 11 penetrate through the two opposite surfaces of the support layer 10 along the thickness direction. The hole diameter and spacing of the mounting holes 11 are adapted to the size and arrangement requirements of the preset magnet 20 to ensure that the magnet 20 can be embedded in the subsequent process.

[0076] S2 inserts the magnet 20 into the mounting hole 11, so that both surfaces of the support layer 10 are magnetic.

[0077] In this step, magnets 20 of a preset specification are embedded into each mounting hole 11. During the embedding process, it is ensured that the two magnetic end faces of the magnet 20 are flush with, slightly concave or slightly convex with, the two surfaces of the support layer 10 (the three mating forms can be selected according to actual needs), and the magnets 20 are fixed in place in the mounting holes 11. Through this step, the two surfaces of the support layer 10 can form evenly distributed magnetic attraction points, ensuring that both sides of the display substrate have stable magnetic attraction capabilities.

[0078] S3 fixes the overlay layer 30 on the corresponding through surface of the support layer 10, and seals the magnet 20 in the mounting hole 11.

[0079] In this step, at least one of the following materials—film, leather, fabric, coating, or paper—is selected as the raw material for the composite layer 30 and cut to match the size of the support layer 10. The composite layer 30 is then bonded and fixed tightly to the two opposite surfaces of the support layer 10 by means of bonding, hot pressing, or composite molding, so that a strong bonding surface is formed between the composite layer 30 and the support layer 10. This seals all the magnets 20 inside the mounting holes 11, achieving both protection and positioning of the magnets 20, and ensuring that the surface of the display substrate is flat and smooth.

[0080] As a specific application example, the aforementioned magnetic display substrate can be prepared using the following process:

[0081] A 2.5mm thick PP hollow board was selected as the substrate for the support layer 10. Through-holes with an array distribution were formed on the support layer 10 using CNC machining. The through-hole diameter was 10mm, and the center-to-center distance between adjacent holes was 15mm. N35 neodymium magnets with a diameter of 10mm and a thickness of 2.5mm were used as magnets 20. After positioning the support layer 10 using a limiting fixture, the magnets were pressed into the corresponding through-holes using a cold press with an interference fit of 0.2mm, ensuring that the two ends of the magnets were flush with the surface of the support layer 10. Subsequently, environmentally friendly MS adhesive was evenly applied to both sides of the support layer 10, and a 0.5mm thick PP skin layer was then bonded as the laminating layer 30. A roller press was used at room temperature to roll out the interlayer air and achieve a tight bond. After the adhesive layer fully cured, a composite board was formed. Finally, ultrasonic welding equipment was used to seal the edges of the composite board, resulting in a complete magnetic display substrate.

[0082] In this invention, the terms "first," "second," and "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "left," "right," "front," and "rear" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this invention. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0083] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0084] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. A magnetic display substrate, comprising a support layer; characterized in that, The support layer is provided with a number of regularly distributed mounting holes, each mounting hole penetrating at least one of the two opposing surfaces of the support layer; it also includes a number of magnets, which are fixedly embedded in the mounting holes to make the two opposing surfaces of the support layer magnetic.

2. A magnetic display substrate, comprising a support layer; characterized in that, It also includes several magnets, and the support layer and the several magnets are integrally formed by injection molding or compression molding. The several magnets are embedded between the two opposite surfaces of the support layer and are regularly distributed so that the two opposite surfaces of the support layer are magnetic.

3. The magnetic display substrate as described in claim 1, characterized in that, It also includes at least one overlay layer, which is attached and fixed to the corresponding through surface of the support layer to seal the magnet in the mounting hole.

4. A magnetic display substrate as described in claim 3, characterized in that, The thickness of the composite layer is 0.5mm-5mm, and the material of the composite layer is at least one of film, leather, fabric, coating or paper.

5. A magnetic display substrate as described in claim 1 or 2, characterized in that, The thickness of the support layer is 1.5mm-30mm, and the material is at least one of non-magnetic polymer board, polymer foam board or plastic board.

6. A magnetic display substrate as described in claim 1 or 2, characterized in that, The magnets are arranged in a matrix, at equal intervals, or in a ring; the cross-sectional size of the magnets is 8mm to 12mm, and the spacing between adjacent magnets is 12mm to 20mm; the distance from the magnetic end face of the magnet to the corresponding non-penetrated surface of the support layer is no more than 5mm.

7. A magnetic display substrate as described in claim 1, characterized in that, The magnet is fixed in the mounting hole by at least one of the following methods: interference fit, bonding, or compression fit, and the magnetic end face of the magnet is flush with the corresponding through end face of the mounting hole.

8. A display item, comprising a carrier body having a mounting cavity and a display area, characterized in that, The mounting cavity contains a magnetic display substrate as described in any one of claims 1 to 7, and the surface of the support layer of the display substrate corresponds to the display area.

9. A display rack, comprising a frame or a support base, wherein the frame or the support base is provided with a mounting groove; characterized in that, It also includes a magnetic display substrate according to any one of claims 1 to 7, wherein the display substrate is adapted to be installed in the mounting groove.

10. A method for preparing a magnetic display substrate, characterized in that, Includes the following steps: A number of regularly distributed mounting holes are formed on the support layer, and the mounting holes penetrate one of the two opposing surfaces of the support layer; a magnet is correspondingly embedded in the mounting hole so that both surfaces of the support layer are magnetic; a coating layer is fixed on the corresponding penetrating surface of the support layer to seal the magnet inside the mounting hole.

Images