Amorphous nanocrystalline shielding sheet fragmentation processing device

Abstract

The utility model relates to the technical field of shielding sheet fragmentation, in particular to an amorphous nanocrystalline shielding sheet fragmentation processing device which comprises a feeding mechanism, an amorphous nanocrystalline shielding sheet fragmentation processing mechanism and an amorphous nanocrystalline shielding sheet fragmentation processing mechanism. The glue coating mechanisms are used for coating the original strip with glue and are arranged on the front side and the rear side of the feeding mechanism; the magnetic crushing mechanism is arranged on the discharging side of the glue coating mechanism, the magnetic crushing mechanism comprises a patterned magnetic crushing roller and a salient point type magnetic crushing roller which are symmetrically arranged, the original strip coated with glue is arranged between the patterned magnetic crushing roller and the salient point type magnetic crushing roller in a penetrating mode, and the magnetic crushed strip is obtained after the original strip penetrates through the magnetic crushing mechanism. The magnetic crushing device can realize synchronous magnetic crushing treatment on the front and back surfaces of the strip, and is beneficial to improving the magnetic crushing efficiency; the magnetic crushing rollers with different styles and matched lines are selected for performing magnetic crushing on the two surfaces of the strip, so that the prepared shielding sheet can meet the requirements of high magnetic conductivity and low loss at the same time, and is relatively good in consistency and relatively excellent in comprehensive performance.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding sheet magnet fragmentation, in particular to a fragmentation processing device for an amorphous nanocrystalline shielding sheet. Background Art

[0002] In recent years, with the rapid development of wireless charging technology, wireless charging products have been rapidly popularized, and higher and higher requirements have been put forward for the technical development of the wireless charging industry. The amorphous nanocrystalline shielding film in the wireless charging module is one of the main components that affect the performance of the wireless product module. The processing and preparation technology of the shielding film is also the focus of the current development of the wireless charging field.

[0003] Amorphous nanocrystalline shielding sheets are usually made of multiple layers of amorphous nanocrystalline strips stacked and bonded together. Before obtaining the finished product, they must be processed by a magnetic crushing device to divide the shielding sheets into small units and introduce air gaps to make the shielding sheets reach the required magnetic permeability level. At the same time, the eddy current loss generated during wireless charging is greatly reduced, thereby improving the charging efficiency.

[0004] The existing magnetic crushing devices can meet the needs to a certain extent, but there are still some problems: traditional magnetic crushing devices can usually only break the shielding sheets into irregular cracks, and the shielding sheets prepared in this way generally have high losses; some devices can realize patterned magnetic crushing, which can reduce losses, but their production efficiency is low and it is difficult to meet the requirements of high magnetic permeability, and additional strip layers are required; some devices can successively perform patterned magnetic crushing and crushed magnetic crushing on the shielding sheets, which also have the problem of low production efficiency, and cannot guarantee the accuracy of the alignment of patterned magnetic crushing and crushed magnetic crushing. The consistency of the shielding sheets is poor, and the performance differences fluctuate greatly. Utility Model Content

[0005] The purpose of the utility model is to provide a fragmentation processing device for an amorphous nanocrystalline shielding sheet to solve the above technical problems;

[0006] The technical problem solved by the present invention can be achieved by adopting the following technical solutions:

[0007] A device for processing fragments of an amorphous nanocrystalline shielding sheet, comprising:

[0008] A feeding mechanism, on which the amorphous nanocrystalline raw strip can be rolled and unrolled;

[0009] A glue coating mechanism for coating the original strip with glue, which is arranged on the front and rear sides of the feeding mechanism;

[0010] At least one set of magnetic breaking mechanisms is provided on the discharging side of the rubber coating mechanism. One set of the magnetic breaking mechanisms includes a patterned magnetic breaking roller and a bump-type magnetic breaking roller which are symmetrically arranged. The original strip after rubber coating passes through between the patterned magnetic breaking roller and the bump-type magnetic breaking roller, and the strip after magnetic breaking is obtained after the original strip passes through the magnetic breaking mechanism.

[0011] Preferably, the patterned magnetic breaking roller is provided with a magnetic breaking pattern, and the bump-type magnetic breaking roller is provided with magnetic breaking bumps arranged in the same pattern as the magnetic breaking pattern, and the lines of the magnetic breaking bumps and the magnetic breaking pattern correspond one by one.

[0012] Preferably, the patterned magnetic breaking roller and the bump-type magnetic breaking roller are connected by gears.

[0013] Preferably, the patterned magnetic breaking roller and the bump-type magnetic breaking roller have the same linear velocity.

[0014] Preferably, a protection mechanism is further provided on the front and rear sides of the magnetic breaking mechanism. The protection mechanism includes,

[0015] A protective film unwinding shaft is provided on the front side of the magnetic breaking mechanism. A protective film that can be wound and unwound is provided on the protective film unwinding shaft, and the protective film is attached to the side of the original strip that is not rubber coated;

[0016] A protective film winding shaft is provided on the rear side of the magnetic breaking mechanism to wind and collect the protective film after it is attached to the original strip.

[0017] Preferably, the rubber coating mechanism includes,

[0018] A feeding shaft is provided on the front side of the feeding mechanism. A double-sided adhesive that can be wound and unwound is provided on the feeding shaft, and the double-sided adhesive is attached to one side of the original strip;

[0019] A laminating roller is provided between the feeding mechanism and the magnetic breaking mechanism.

[0020] Preferably, a winding mechanism for winding the strip after magnetic breaking is further provided on the rear side of the magnetic breaking mechanism.

[0021] Preferably, it further includes,

[0022] A pressure regulating component is connected to the patterned magnetic breaking roller and the bump-type magnetic breaking roller at the same time;

[0023] A pressure sensor is provided on one side of the patterned magnetic breaking roller and / or the bump-type magnetic breaking roller.

[0024] Preferably, a heating mechanism is further provided between the feeding mechanism and the magnetic breaking mechanism.

[0025] Preferably, it further includes a detection mechanism, which is arranged at the rear side of the magnetic fragmentation mechanism.

[0026] Advantages of the present utility model: Due to the above technical solutions, the present utility model can achieve synchronous magnetic fragmentation treatment on both sides of the strip, which helps to improve the magnetic fragmentation efficiency; different styles of magnetic fragmentation rollers with matching patterns are selected to perform magnetic fragmentation on both sides of the strip, so that the soft magnetic alloy strip after magnetic fragmentation presents a regular pattern macroscopically, while inside the pattern it presents as irregular fragments. The shielding sheet prepared in this way can simultaneously meet the requirements of high magnetic permeability and low loss, and has good consistency and more excellent comprehensive performance. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the shielding sheet fragmentation treatment device in the embodiment of the present utility model;

[0028] Figure 2 is the structural schematic diagram of the magnetic fragmentation pattern in the embodiment of the present utility model;

[0029] Figure 3 is the structural schematic diagram of the magnetic fragmentation bumps in the embodiment of the present utility model;

[0030] Figure 4 In the embodiment of the present utility model Figure 2 is the partial enlarged view;

[0031] Figure 5 In the embodiment of the present utility model Figure 3 is the partial enlarged view;

[0032] Figure 6 is the partial schematic diagram when the patterned magnetic fragmentation roller and the bump-type magnetic fragmentation roller are butted in the embodiment of the present utility model.

[0033] In the drawings: 1, unwinding shaft; 2, loading mechanism; 3, laminating roller; 4, heating mechanism; 5, patterned magnetic fragmentation roller; 51, magnetic fragmentation pattern; 6, bump-type magnetic fragmentation roller; 61, magnetic fragmentation bumps; 7, pressure sensor; 8, pressure regulating assembly; 9, detection mechanism; 10, protective film unwinding shaft; 11, protective film winding shaft; 12, winding mechanism. Detailed Embodiments

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0035] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0036] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not limited to the present utility model.

[0037] A device for fragmenting an amorphous nanocrystalline shielding sheet, as Figures 1 to 6 shown, includes

[0038] A feeding mechanism 2, on which the original strip can be wound and unwound;

[0039] A rubber coating mechanism for coating the original strip, which is arranged on the front and back sides of the feeding mechanism 2;

[0040] At least one set of magnetic fragmentation mechanisms, which are arranged on the discharge side of the rubber coating mechanism. One set of magnetic fragmentation mechanisms includes a patterned magnetic fragmentation roller 5 and a bump-type magnetic fragmentation roller 6 arranged symmetrically. The original strip after rubber coating passes through between the patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6, and the strip after magnetic fragmentation is obtained after the original strip passes through the magnetic fragmentation mechanism.

[0041] Specifically, the device for fragmenting the amorphous nanocrystalline shielding sheet of the present utility model can realize the synchronous magnetic fragmentation treatment of both sides of the strip. The patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6 are respectively selected for the front and back sides, and the bump parts of the bump-type magnetic fragmentation roller 6 respectively correspond one by one to the inside of the pattern of the patterned magnetic fragmentation roller 5.

[0042] The present utility model can realize the synchronous magnetic fragmentation treatment of both sides of the strip, which helps to improve the magnetic fragmentation efficiency; different styles of the patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6 with matching patterns are selected to perform magnetic fragmentation on both sides of the strip, so that the soft magnetic alloy strip after magnetic fragmentation presents a regular pattern macroscopically, while inside its pattern it presents as irregular fragments. The shielding sheet prepared in this way can simultaneously meet the requirements of high magnetic permeability and low loss, and has good consistency and more excellent comprehensive performance.

[0043] In a preferred embodiment, the patterned magnetic fragmentation roller 5 is provided with a magnetic fragmentation pattern 51, and the bump-type magnetic fragmentation roller 6 is provided with magnetic fragmentation bumps 61 with the same arrangement as the magnetic fragmentation pattern 51, and the patterns of the magnetic fragmentation bumps 61 and the magnetic fragmentation pattern 51 correspond one by one.

[0044] In a preferred embodiment, the patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6 are connected by gears.

[0045] In a preferred embodiment, the patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6 have the same linear velocity.

[0046] Specifically, the patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6 are connected and positioned by high-precision gears.

[0047] Specifically, the patterns 51 of the patterned magnetic-breaking roller 5 and the patterns of the magnetic-breaking bumps 61 of the bump-type magnetic-breaking roller 6 correspond one by one. That is, during the magnetic-breaking process, each magnetic-breaking pattern 51 on the mating surface of the patterned magnetic-breaking roller 5 with the original strip has a corresponding magnetic-breaking bump 61 on the opposite bump-type magnetic-breaking roller 6. The corresponding magnetic-breaking pattern 51 and magnetic-breaking bump 61 are located on the front and back sides of the original strip respectively, and jointly perform magnetic-breaking treatment on the original strip. The shielding sheets prepared in this way have better consistency, small performance differences, and more stable and excellent comprehensive performance.

[0048] Furthermore, each magnetic-breaking pattern 51 on the patterned magnetic-breaking roller 5 can be triangular, rectangular or other polygons, or a combination of their shapes.

[0049] Patterned magnetic-breaking is equivalent to a cutting process of the strip. The edge of the magnetic-breaking pattern 51 is equivalent to a cutting edge, and the internal area enclosed by the edge is sunken; each magnetic-breaking bump 61 on the bump-type magnetic-breaking roller 6 can just fit into the sunken area of the corresponding magnetic-breaking pattern 51.

[0050] In a preferred embodiment, a protection mechanism is further included and is provided on both the front and back sides of the magnetic-breaking mechanism. The protection mechanism includes,

[0051] A protective film unwinding shaft 10 is provided on the front side of the magnetic-breaking mechanism. A protective film that can be wound and unwound is provided on the protective film unwinding shaft 10, and the protective film is attached to the side of the original strip without adhesive.

[0052] A protective film winding shaft 11 is provided on the back side of the magnetic-breaking mechanism to wind the protective film after it is attached to the original strip.

[0053] Specifically, the protection mechanism is provided on both the front and back sides of the magnetic-breaking mechanism. The protective film unwinding shaft 10 is provided on the front side of the magnetic-breaking mechanism, and the protective film winding shaft 11 is provided on the back side of the magnetic-breaking mechanism. The protective film is attached to the side of the original strip without double-sided adhesive during the entire magnetic-breaking process, avoiding direct contact between the patterned magnetic-breaking roller 5 and the bump-type magnetic-breaking roller 6 and the original strip, preventing other pollutants from being brought in and affecting the final performance, and at the same time preventing the original strip from falling off when the patterned magnetic-breaking roller 5 and the bump-type magnetic-breaking roller 6 roll, playing a protective role.

[0054] In a preferred embodiment, the adhesive coating mechanism includes,

[0055] A feeding shaft 1 is provided on the front side of the feeding mechanism 2. A double-sided adhesive that can be wound and unwound is provided on the feeding shaft 1, and the double-sided adhesive is attached to one side of the original strip.

[0056] A laminating roller 3 is provided between the feeding mechanism 2 and the magnetic-breaking mechanism.

[0057] Specifically, the double-sided tape is unwound by the unwinding shaft 1, then is preliminarily adhered to the original strip on the feeding mechanism 2, and is tightly adhered by the adhering roller 3. The double-sided tape can ensure the intact state of the strip after fragmentation. At the same time, the double-sided tape can be completely filled into the gaps after the strip is fragmented, so that the fragmented strip pieces are in an insulating state with each other.

[0058] In a preferred embodiment, it further includes a winding mechanism 12 for winding the strip after magnetic fragmentation, which is arranged at the rear side of the magnetic fragmentation mechanism.

[0059] In a preferred embodiment, it further includes

[0060] a pressure regulating component 8, which is simultaneously connected to the patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6;

[0061] a pressure sensor 7, which is arranged on one side of the patterned magnetic fragmentation roller 5 and / or the bump-type magnetic fragmentation roller 6.

[0062] Specifically, the pressure regulating component 8 is used to adjust the distance and the adhering degree between the patterned magnetic fragmentation roller 5 and the bump-type magnetic fragmentation roller 6, and monitors the pressure value between the two through the pressure sensor 7 to keep it within a specific range, so as to meet the different requirements for the magnetic permeability of the shielding sheet in different application scenarios.

[0063] In a preferred embodiment, it further includes a heating mechanism 4, and the heating mechanism 4 is arranged between the feeding mechanism 2 and the magnetic fragmentation mechanism.

[0064] Specifically, the heating mechanism 4 is two heating rollers arranged up and down, and the original strip passes between the two heating rollers. The heating mechanism 4 can heat the double-sided tape adhered to the original strip before the magnetic fragmentation process, which can improve the fluidity of the colloid, facilitate full filling in the gaps of the strip fragments after magnetic fragmentation, and play a better insulating effect.

[0065] In a preferred embodiment, it further includes a detection mechanism 9, which is arranged at the rear side of the magnetic fragmentation mechanism.

[0066] Specifically, the detection mechanism 9 can detect the performance parameters of the strip after magnetic fragmentation, and adjust the pressure of the upper and lower patterned magnetic fragmentation roller 5 and bump-type magnetic fragmentation roller 6 in real time through the pressure regulating component 8 according to the change of the performance parameters, so as to ensure the stability of the process.

[0067] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be able to realize that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for processing fragments of an amorphous nanocrystalline shielding sheet, characterized in that: include, A feeding mechanism (2), on which the amorphous nanocrystalline raw strip can be rolled and unrolled; A glue coating mechanism for coating the original strip with glue, which is arranged on the front and rear sides of the feeding mechanism (2); At least one group of magnet crushing mechanisms is arranged on the discharge side of the glue coating mechanism, and one group of magnet crushing mechanisms includes symmetrically arranged patterned magnet crushing rollers (5) and convex point magnet crushing rollers (6). The original strip after glue coating is passed between the patterned magnet crushing rollers (5) and the convex point magnet crushing rollers (6). The original strip passes through the magnet crushing mechanism to obtain the magnetized strip.

2. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: The patterned broken magnetic roller (5) is provided with a broken magnetic pattern (51), and the convex point-type broken magnetic roller (6) is provided with broken magnetic convex points (61) arranged in the same manner as the broken magnetic pattern (51), and the lines of the broken magnetic convex points (61) and the broken magnetic pattern (51) correspond one to one.

3. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: The patterned crushed magnetic roller (5) and the convex point crushed magnetic roller (6) are connected via gears.

4. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: The patterned magnetic crushing roller (5) and the convex point magnetic crushing roller (6) have the same linear speed.

5. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: It also includes a protection mechanism disposed on both sides of the front and rear of the magnetic crushing mechanism, and the protection mechanism includes: A protective film unloading shaft (10) is arranged at the front side of the magnetic crushing mechanism, and a rollable protective film is arranged on the protective film unloading shaft (10), and the protective film is attached to the non-glue-coated side of the original strip; The protective film receiving shaft (11) is arranged at the rear side of the magnetic crushing mechanism and is used to receive and roll up the protective film after being bonded to the original strip.

6. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: The glue coating mechanism comprises: A discharge shaft (1) is arranged at the front side of the feeding mechanism (2), and a rollable double-sided adhesive tape is arranged on the discharge shaft (1), and the double-sided adhesive tape is attached to one side of the original strip; The laminating roller (3) is arranged between the feeding mechanism (2) and the magnetic crushing mechanism.

7. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: It also comprises a material receiving mechanism (12) for winding up the magnetically shredded strip material, which is arranged at the rear side of the magnetically shredded mechanism.

8. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: Also includes, A pressure regulating assembly (8) is connected to the patterned crushed magnetic roller (5) and the convex point crushed magnetic roller (6); A pressure sensor (7) is arranged on one side of the patterned crushed magnetic roller (5) and / or the convex point crushed magnetic roller (6).

9. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: It also comprises a heating mechanism (4), wherein the heating mechanism (4) is arranged between the feeding mechanism (2) and the magnetic crushing mechanism.

10. The amorphous nanocrystalline shielding sheet fragmentation processing device according to claim 1, characterized in that: It also includes a detection mechanism (9) which is arranged on the rear side of the magnetic crushing mechanism.

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