A polishing sheet for polishing a mobile phone screen

Abstract

The utility model relates to the field of polishing piece discloses a polishing piece for mobile phone screen polishing, including polishing piece body, the outside of polishing piece body is provided with polishing piece cover, the inner wall of polishing piece cover is opened T type groove, the inner wall sliding connection of T type groove has T type block, the outer wall fixed connection of T type block has connecting plate, the bottom fixed connection of connecting plate has silica gel board, the bottom fixed connection of silica gel board has fixed plate, the inner wall sliding connection of T type block has slide rod, the bottom fixed connection of T type block has telescopic spring, the bottom inner wall of fixed plate is opened annular groove, in the utility model, the connecting frame is magnetically fixed in annular groove through the opening, realizes the preliminary connection, and the silica gel board elastic deformation drives polishing piece body to stick to the screen curve when using, makes the installation and removal simple and convenient, sticks to the curved surface guaranteeing polishing even, the buffer mechanism reduces the damage risk, promotes polishing efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of polishing discs, and more particularly to a polishing disc for polishing mobile phone screens. Background Technology

[0002] A polishing pad is a flexible thin sheet with abrasive particles coated on its surface. It is a processing tool that removes tiny bumps on the surface of a material through physical friction, achieving a flat, smooth, or specific roughness. Mobile phone screens may develop visible or tangible surface defects such as scratches, micro-cracks, glass stress lines, coating peeling, edge chipping, or residual adhesive residue during production, transportation, repair, or long-term daily use. Therefore, it is necessary to use polishing pads of different grit sizes with water or polishing agents to gradually remove the damaged layer and rebuild a flat surface in order from coarse to fine. Finally, polishing restores the original luster and feel of the glass.

[0003] The core function of existing mobile phone screen polishing pads is to gradually remove scratches, micro-cracks and coating damage on the glass surface with abrasive layers of different particle sizes, restoring smoothness. With the help of water or polishing agent, cooling and lubrication are achieved to avoid secondary scratches.

[0004] In existing technologies, polishing discs are mostly rigid flat surfaces, which are difficult to perfectly fit the mobile phone screen and curved edges, resulting in uneven edge polishing, low efficiency, or easy damage to non-target areas. The polishing disc cannot fit the curved surface and lacks buffering, which will lead to local over-polishing and curved surface residue, ultimately causing a double decrease in repair yield and safety and an increase in risk. To address these issues, a polishing disc for mobile phone screen polishing is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a polishing disc for polishing mobile phone screens, aiming to improve the problem that existing polishing discs for mobile phone screen polishing lack conforming to curved surfaces and buffering functions, which leads to reduced polishing effect and reduced polishing safety.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a polishing disc for polishing mobile phone screens, comprising a polishing disc body, a polishing disc cover provided on the outside of the polishing disc body, a T-shaped groove formed on the inner wall of the polishing disc cover, a T-shaped block slidably connected to the inner wall of the T-shaped groove, a connecting plate fixedly connected to the outer wall of the T-shaped block, a silicone plate fixedly connected to the bottom of the connecting plate, a fixing plate fixedly connected to the bottom of the silicone plate, a sliding rod slidably connected to the inner wall of the T-shaped block, a telescopic spring fixedly connected to the bottom of the T-shaped block, an annular groove formed on the inner wall of the bottom of the fixing plate, an opening formed on the outer wall of the bottom of the fixing plate, a connecting frame fixedly connected to the top of the polishing disc body, and a magnetic block fixedly connected to the inner wall of the annular groove.

[0007] As a further description of the above technical solution: The end of the slide bar is fixedly connected to the inner wall of the T-slot.

[0008] As a further description of the above technical solution: The telescopic spring is sleeved on the outer wall of the slide rod, and the bottom end of the telescopic spring is fixedly connected to the T-slot.

[0009] As a further description of the above technical solution: The connecting frame is arranged in an inverted L shape, and the inner wall of the connecting frame is magnetically connected to the outer wall of the magnetic block through a magnet.

[0010] As a further description of the above technical solution: The grinding disc cover is fitted onto the outer wall of the fixed plate.

[0011] As a further description of the above technical solution: The outer wall of the connecting frame has an insertion hole, the inner wall of the fixing plate has an installation groove, the inner wall of the fixing plate is slidably connected to a T-shaped rod, and the inner wall of the installation groove is fixedly connected to a limit spring.

[0012] As a further description of the above technical solution: The limiting spring is sleeved on the outer wall of the T-shaped rod.

[0013] As a further description of the above technical solution: The outer wall of the T-shaped rod is adapted to the inner wall of the socket.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the connecting bracket is magnetically fixed in the annular groove through the opening to achieve initial connection. During use, the elastic deformation of the silicone plate causes the grinding disc body to conform to the curved surface of the screen. The T-shaped block slides in the T-shaped groove and is buffered by the spring to ensure stability. When disassembling, the T-shaped rod is moved out of the insertion hole and the connecting bracket is rotated out. Replacement is convenient, making installation and disassembly simple, conforming to the curved surface to ensure uniform grinding, the buffer mechanism reduces the risk of damage, and improves grinding efficiency and quality.

[0015] 2. In this utility model, the connection frame is reliably mechanically locked by the matching of the insertion hole and the T-shaped rod. The limit spring automatically resets the T-shaped rod to ensure a stable fixed state. The rope traction design, combined with the hole of the fixing plate and the end pull ring, allows the operator to easily pull the T-shaped rod out of the insertion hole with one hand, which greatly simplifies the disassembly process, enhances connection stability, simplifies unlocking operation, improves replacement efficiency, and reduces maintenance difficulty. Attached Figure Description

[0016] Figure 1 This is an exploded side view of the main structure of a polishing disc for polishing mobile phone screens, as proposed in this utility model. Figure 2 This utility model proposes a polishing disc for polishing mobile phone screens. Figure 1 Enlarged view of region A in the middle; Figure 3 This is a bottom view schematic diagram of the main structure of a polishing disc for polishing mobile phone screens according to the present invention. Figure 4 A top view schematic diagram of the grinding disc body structure for grinding a mobile phone screen according to the present invention. Figure 5 This is a partial cross-sectional schematic diagram of the connecting plate structure of a polishing disc for polishing mobile phone screens according to the present invention. Figure 6 This utility model proposes a polishing disc for polishing mobile phone screens. Figure 5 Enlarged schematic diagram of region B in the middle.

[0017] Legend: 1. Grinding disc body; 2. Grinding disc cover; 3. Connecting plate; 4. Silicone plate; 5. Fixing plate; 6. T-slot; 7. T-block; 8. Slide rod; 9. Telescopic spring; 10. Annular groove; 11. Opening; 12. Magnetic block; 13. Connecting frame; 14. Insertion hole; 15. Mounting groove; 16. T-bar; 17. Limiting spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-3This utility model provides an embodiment of a polishing disc for polishing mobile phone screens, comprising a polishing disc body 1, a polishing disc cover 2 on the outside of the polishing disc body 1, a T-shaped groove 6 on the inner wall of the polishing disc cover 2, the T-shaped groove 6 providing a sliding track for a T-shaped block 7 to ensure stable movement of the T-shaped block 7, the T-shaped block 7 being slidably connected to the inner wall of the T-shaped groove 6, and a connecting plate 3 being fixedly connected to the outer wall of the T-shaped block 7, the bottom of the connecting plate 3 being fixedly connected to a silicone plate 4, the silicone plate 4 being a solid silicone rubber pad with a Shore A hardness of 40±5 degrees and a thickness of 3±0.5mm, and an elastic modulus range of 1-5MPa, ensuring a controllable deformation of 0.1~0.5mm under the pressure of the curved surface of the mobile phone screen, achieving self-adaptive bonding, the connecting plate 3 can... The movement of block 7 is transmitted to silicone plate 4. Silicone plate 4 is made of silicone layer of a certain thickness, which allows the polishing pad body 1 to deform slightly under pressure, so as to better fit the screen curvature and edge. A fixing plate 5 is fixedly connected to the bottom of silicone plate 4. Polishing pad cover 2 is sleeved on the outer wall of fixing plate 5. A sliding rod 8 is slidably connected to the inner wall of T-block 7. The sliding rod 8 can limit the movement direction of T-block 7 and prevent it from deviating. The end of the sliding rod 8 is fixedly connected to the inner wall of T-slot 6. A telescopic spring 9 is fixedly connected to the bottom of T-block 7. The telescopic spring 9 is made of stainless steel and is sleeved on the outer wall of sliding rod 8. The bottom end of the telescopic spring 9 is fixedly connected to T-slot 6, so that one end of the telescopic spring 9 is fixed and the elastic force is effectively applied to T-block 7.

[0020] Reference Figures 3-5 The bottom inner wall of the fixing plate 5 has an annular groove 10, which provides space for the connecting frame 13, facilitating its installation and rotation. The bottom outer wall of the fixing plate 5 has an opening 11, which is the channel for the connecting frame 13 to enter the annular groove 10. The opening 11 facilitates the entry of the connecting frame 13 into the annular groove 10. The top of the grinding disc body 1 is fixedly connected to the connecting frame 13, which is inverted L-shaped. The inverted L-shaped structure allows the connecting frame 13 to be stably engaged in the annular groove 10, enhancing the connection. For stability, a magnetic block 12 is fixedly connected to the inner wall of the annular groove 10. The magnetic block 12 is bonded to the recessed groove on the top wall of the annular groove 10 with high-temperature resistant epoxy resin. The inner wall of the connecting frame 13 is magnetically connected to the outer wall of the magnetic block 12 by a magnet. Both are made of neodymium iron boron material with a surface magnetic flux density ≥80mT, ensuring that the adsorption force can stably support the weight of the grinding disc body 1 and the conventional grinding pressure. At the same time, it allows manual rotation to overcome the magnetic force to achieve separation. The magnetic force is used to further strengthen the connection between the connecting frame 13 and the fixing plate 5. Reference Figures 4-6The outer wall of the connecting frame 13 has an insertion hole 14, which provides an insertion position for the T-shaped rod 16, thus achieving mechanical fixation of the connecting frame 13. The inner wall of the fixing plate 5 has an installation groove 15, which provides installation space for the T-shaped rod 16 and the limiting spring 17. The T-shaped rod 16 is slidably connected to the inner wall of the fixing plate 5. The outer wall of the T-shaped rod 16 is adapted to the inner wall of the insertion hole 14. The limiting spring 17 is fixedly connected to the inner wall of the installation groove 15. The limiting spring 17 is sleeved on the outer wall of the T-shaped rod 16. One end of the T-shaped rod 16 is connected by a rope. The cable passes through the fixing plate 5, and the cable can move the T-shaped rod 16, making it easy to operate the T-shaped rod 16 to disengage from the insertion hole 14. That is, the fixing plate 5 has a channel for the cable to pass through, and the channel provides a path for the cable to pass through, ensuring that the cable can smoothly pull the T-shaped rod 16. A pull ring is provided on the cable. When the pull ring is pulled outward, the cable pulls the T-shaped rod 16 backward in a straight line along the inner wall of the mounting groove 15, compressing the limit spring 17 and causing its end to disengage from the insertion hole 14. After the pull ring is released, the limit spring 17 pushes the T-shaped rod 16 to return to its original position, realizing convenient control of the position of the T-shaped rod 16.

[0021] Working principle: During installation, the inverted L-shaped connecting bracket 13 is placed into the annular groove 10 on the inner wall of the bottom of the fixing plate 5 through the opening 11. Under the action of the magnet, the connecting bracket 13 is magnetically connected to the magnetic block 12 on the inner wall of the annular groove 10, initially realizing the connection between the polishing disc body 1 and the fixing plate 5. At the same time, under the elastic force of the limiting spring 17, the end of the T-shaped rod 16 on the inner wall of the fixing plate 5 will be inserted into the insertion hole 14 on the outer wall of the connecting bracket 13, further reinforcing the installation of the polishing disc body 1 and preventing it from falling off during polishing. When the polishing disc body 1 contacts the mobile phone screen, the screen exerts pressure on the polishing disc body 1. Since the silicone plate 4 uses a silicone layer of a certain thickness, it has good elasticity and deformation ability. Under the pressure, it will undergo local micro-deformation, thereby causing the polishing disc body 1 to also undergo corresponding local micro-deformation, so that the polishing disc body 1 can better fit the curved surface and edge of the mobile phone screen, ensuring the uniformity and effect of polishing. When the polishing disc body 1 fits the curved surface or edge of the screen, When the position changes, the connecting plate 3 moves accordingly, which in turn causes the T-block 7 to slide in the T-groove 6 on the inner wall of the polishing disc cover 2. During the sliding process, the T-block 7 will stretch or compress the telescopic spring 9 sleeved on the outer wall of the slide rod 8. The elastic force of the telescopic spring 9 will generate a reverse force on the T-block 7, which plays a role in buffering and resetting, ensuring the stability of the polishing process and reducing the damage to the mobile phone screen caused by the sudden change in the position of the polishing disc body 1. When it is necessary to replace the polishing disc body 1, by pulling the pull ring on the rope, the rope will drive the T-bar 16 to move into the mounting groove 15, so that the end of the T-bar 16 is disengaged from the insertion hole 14 of the connecting bracket 13, releasing the fixation of the connecting bracket 13. Then, by overcoming the magnetic force between the connecting bracket 13 and the magnet 12, a rotational force is applied to the polishing disc body 1, and the connecting bracket 13 is taken out from the annular groove 10 through the opening 11, thus completing the disassembly of the polishing disc body 1. Then, a new polishing disc body 1 can be replaced according to the installation steps. Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polishing disc for polishing mobile phone screens, comprising a polishing disc body (1), wherein a polishing disc cover (2) is disposed on the outside of the polishing disc body (1), characterized in that: The inner wall of the grinding disc cover (2) is provided with a T-shaped groove (6), and a T-shaped block (7) is slidably connected to the inner wall of the T-shaped groove (6). A connecting plate (3) is fixedly connected to the outer wall of the T-shaped block (7). A silicone plate (4) is fixedly connected to the bottom of the connecting plate (3). A fixing plate (5) is fixedly connected to the bottom of the silicone plate (4). A sliding rod (8) is slidably connected to the inner wall of the T-shaped block (7). A telescopic spring (9) is fixedly connected to the bottom of the T-shaped block (7). An annular groove (10) is provided on the inner wall of the bottom of the fixing plate (5). An opening (11) is provided on the outer wall of the bottom of the fixing plate (5). A connecting frame (13) is fixedly connected to the top of the grinding disc body (1). A magnetic block (12) is fixedly connected to the inner wall of the annular groove (10).

2. The polishing disc for polishing mobile phone screens according to claim 1, characterized in that: The end of the slide bar (8) is fixedly connected to the inner wall of the T-slot (6).

3. The polishing disc for polishing mobile phone screens according to claim 1, characterized in that: The telescopic spring (9) is sleeved on the outer wall of the slide rod (8), and the bottom end of the telescopic spring (9) is fixedly connected to the T-slot (6).

4. A polishing disc for polishing mobile phone screens according to claim 1, characterized in that: The connecting frame (13) is arranged in an inverted L shape, and the inner wall of the connecting frame (13) is magnetically connected to the outer wall of the magnetic block (12) by a magnet.

5. A polishing disc for polishing mobile phone screens according to claim 1, characterized in that: The grinding disc cover (2) is fitted onto the outer wall of the fixing plate (5).

6. A polishing disc for polishing mobile phone screens according to claim 1, characterized in that: The outer wall of the connecting frame (13) is provided with an insertion hole (14), the inner wall of the fixing plate (5) is provided with an installation groove (15), the inner wall of the fixing plate (5) is slidably connected with a T-shaped rod (16), and the inner wall of the installation groove (15) is fixedly connected with a limit spring (17).

7. A polishing disc for polishing mobile phone screens according to claim 6, characterized in that: The limiting spring (17) is sleeved on the outer wall of the T-shaped rod (16).

8. A polishing disc for polishing mobile phone screens according to claim 6, characterized in that: The outer wall of the T-shaped rod (16) is adapted to the inner wall of the socket (14).

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