Polishing device for cover plates

By combining the polishing methods of revolution and rotation with the removal of debris by a negative pressure pump, the problem of uneven polishing in existing technologies has been solved, achieving high-quality polishing results and environmental cleanliness.

CN224544183UActive Publication Date: 2026-07-24LONGYAN JIAMEI TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LONGYAN JIAMEI TECHNOLOGY CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing mobile phone glass cover polishing devices do not provide sufficient contact between the glass cover surface and the polishing pad during the polishing process, resulting in uneven and incomplete polishing, which fails to meet the requirements for high-quality polishing.

Method used

The sealing cover is moved into the annular slot by a pneumatic cylinder in a synchronous operation, and the polishing disc is in contact with the surface of the glass cover plate. The glass cover plate surface and the polishing disc are fully contacted by a combination of synchronous rotation of four second motors and rotation of the first motor driving the rotating disc. The debris generated during the polishing process is removed by a negative pressure pump.

Benefits of technology

It improves the uniformity and comprehensiveness of polishing, enhances the polishing effect, and at the same time maintains a clean working environment and reduces the impact on the health of operators.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224544183U_ABST
    Figure CN224544183U_ABST
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Abstract

The utility model belongs to cell -phone glass cover board processing technical field, concretely speaking is a kind of polishing device for cover board, including base, fixed ring is fixedly connected on the base, rotating disc is rotatably installed in the fixed ring, first motor is installed on the base, the output of first motor is connected with rotating column, the top of rotating column is fixedly connected on the bottom side wall of rotating disc, rotating disc is rotatably installed with multiple rotating rods, the top of each rotating rod is fixedly connected with placing tray, two clamping grooves are set up on each placing tray, the bottom of each rotating rod is equipped with pinion, three supporting blocks are fixedly connected on the base, and gear ring is installed in cooperation with three supporting blocks;The utility model can make glass cover board surface and polishing disc fully contact by the way that revolution and rotation of glass cover board are combined when polishing treatment is carried out to cell -phone glass cover board, is polished from multiple angles, effectively improves the uniformity and comprehensiveness of polishing, and improves polishing effect.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone glass cover processing technology, specifically a polishing device for cover plates. Background Technology

[0002] The cover glass used in mobile phones is generally chemically strengthened glass, which serves to protect the display screen. During the processing of mobile phone glass cover glass, it is often necessary to polish it with a polishing device to remove stains, oxide layers, shallow scratches, etc. from the surface of the cover glass.

[0003] A Chinese patent with announcement number CN222269821U discloses a polishing device for mobile phone glass covers, including a placement device. A working machine is mounted on one side of the outer surface of the placement device. The placement device includes a base, a worktable on one side of the outer surface of the base, and a device box on another side of the outer surface of the base. A device tube is located inside the device box, and a movable rod is located inside the device tube. A clamping plate is mounted at one end of the movable rod. In this invention, when the movable rod moves left and right, the clamping plate moves left and right, changing the distance between the left and right clamping plates. When the clamping plate contacts the mobile phone cover, rotating the threaded rod causes the movable plate to press against the auxiliary rod, and the limiting rod to press against the movable rod, fixing the position of the clamping plate. This allows for the fixed use of raw materials of different specifications.

[0004] Existing mobile phone glass cover polishing devices only rotate the glass cover in one direction or keep it stationary during the polishing process. This results in insufficient contact between the glass cover surface and the polishing pad, making it impossible to polish from multiple angles. Consequently, the polishing is uneven and incomplete, affecting the final polishing effect and failing to meet the requirements for high-quality polishing. Therefore, a new polishing device for covers is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve the problems mentioned in the background art, this utility model proposes a polishing device for cover plates.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A polishing device for cover plates, comprising a base, a fixed ring fixedly connected to the base, a rotating disk rotatably mounted inside the fixed ring, a first motor mounted on the base, the output end of the first motor connected to a rotating column, the top end of the rotating column fixedly connected to the bottom side wall of the rotating disk, multiple rotating rods rotatably mounted on the rotating disk, each rotating rod having a placement plate fixedly connected to its top end, each placement plate having two slots, and a small gear fitted at the bottom end of each rotating rod. Three support blocks are fixedly connected to the base, and gear rings are fitted onto the three support blocks, with the gear rings meshing with the multiple small gears. An annular slot is provided on the top side of the fixed ring. A fixing frame is mounted on the base, and two pneumatic cylinders are mounted on the top side of the fixing frame. Pneumatic rods are fitted to the working ends of the two pneumatic cylinders. A sealing cover is installed at the bottom of the device. Four second motors are installed on the bottom side of the sealing cover. Each second motor has a polishing disc installed at its output end. The polishing disc is located inside the sealing cover. When polishing the mobile phone glass cover, two pneumatic cylinders work synchronously to move the sealing cover down into the annular slot, thereby forming a sealed space. At this time, the polishing disc is in contact with the surface of the glass cover. Then, the four second motors work synchronously to make the four polishing discs rotate. At the same time, the first motor is started, causing the rotating disc to drive the placement disc and the mobile phone glass cover to revolve. Simultaneously, under the mutual meshing of the gear ring and multiple small gears, the rotating rod drives the placement disc and the mobile phone glass cover to rotate on their own axis. Through the combination of the revolution and rotation of the glass cover, the surface of the glass cover can fully contact the polishing disc, polishing from multiple angles, effectively improving the uniformity and comprehensiveness of polishing, and enhancing the polishing effect.

[0007] Preferably, a support frame is fixed to the fixed frame, and a dust collection box is installed on the support frame. Two suction hoses are connected between the dust collection box and the sealing cover. A negative pressure pump is installed on the support frame. The input port of the negative pressure pump is connected to an air extraction pipe, and the output port of the negative pressure pump is connected to an exhaust pipe. A filter screen is installed inside the dust collection box, and the filter screen is arranged around the port of the air extraction pipe. During the polishing process, the negative pressure pump operates to keep the inside of the dust collection box under negative pressure, which allows the debris generated during the polishing process to be sucked into the dust collection box through the suction hoses. This enables timely cleaning and collection of the debris generated during the polishing process, preventing debris from accumulating in the polishing area and affecting the polishing quality. It also maintains a clean working environment and reduces adverse effects on the health of operators.

[0008] Preferably, a discharge port is provided on one side of the dust collection box, and limit slide rails are installed on both sides of the discharge port. The two limit slide rails are fitted with a sealing plate. When using the device, the discharge port can be opened or closed as needed through the cooperation of the limit slide rails and the sealing plate. By setting the discharge port, it is convenient to remove debris from the dust collection box.

[0009] Preferably, a control panel is installed on the outer wall of the fixing frame, and the control panel is used to control the start and stop of the first motor, the second motor, the pneumatic cylinder and the negative pressure pump. When using the device, by setting up the control panel, multiple drive devices can be concentrated together, which greatly improves the convenience of operation.

[0010] The advantages of this utility model are:

[0011] 1. In the polishing process of mobile phone glass covers, this utility model uses two pneumatic cylinders to work synchronously, causing the sealing cover to move down into the annular slot, thereby forming a sealed space. At this time, the polishing disc is in contact with the surface of the glass cover. Then, four second motors work synchronously to make the four polishing discs rotate. At the same time, the first motor is started, causing the rotating disc to drive the placement disc and the mobile phone glass cover to revolve. Simultaneously, under the mutual meshing of the gear ring and multiple small gears, the rotating rod drives the placement disc and the mobile phone glass cover to rotate. Through the combination of the revolution and rotation of the glass cover, the surface of the glass cover can fully contact the polishing disc, and polishing can be performed from multiple angles, effectively improving the uniformity and comprehensiveness of polishing and enhancing the polishing effect.

[0012] 2. During the polishing process, this utility model uses a negative pressure pump to create a negative pressure environment inside the dust collection box. This allows the dust generated during polishing to be drawn into the dust collection box through a suction hose, thus enabling timely cleaning and collection of the dust generated during polishing. This prevents dust from accumulating in the polishing area and affecting the polishing quality, while maintaining a clean working environment and reducing adverse effects on the health of operators. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall front-view three-dimensional structure of the device;

[0015] Figure 2 A top-view 3D structural diagram of the plate placement;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the meshing and rotating mechanism;

[0017] Figure 4 This is a sectional view of the three-dimensional structure of the fixed ring;

[0018] Figure 5 This is a partial three-dimensional structural diagram of the device;

[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the polishing disc assembly;

[0020] In the diagram: 1. Base; 2. Fixing ring; 3. Rotating disk; 4. First motor; 5. Rotating column; 6. Rotating rod; 7. Placement plate; 8. Slot; 9. Pinion gear; 10. Support block; 11. Gear ring; 12. Annular slot; 13. Fixing frame; 14. Pneumatic cylinder; 15. Sealing cover; 16. Second motor; 17. Polishing disk; 18. Support frame; 19. Dust collection box; 20. Suction hose; 21. Negative pressure pump; 22. Air extraction pipe; 23. Exhaust pipe; 24. Limiting slide rail; 25. Sealing plate; 26. Control panel. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Please see Figure 1-6As shown, a polishing device for a cover plate includes a base 1, a fixing ring 2 fixedly connected to the base 1, a rotating disk 3 rotatably mounted inside the fixing ring 2, a first motor 4 mounted on the base 1, a rotating column 5 connected to the output end of the first motor 4, the top end of the rotating column 5 fixedly connected to the bottom side wall of the rotating disk 3, a plurality of rotating rods rotatably mounted on the rotating disk 3, a placement plate 7 fixedly connected to the top end of each rotating rod 6, two slots 8 formed on each placement plate 7, and a small gear 9 fitted onto the bottom end of each rotating rod 6. There are three support blocks 10, and toothed rings 11 are installed on the three support blocks 10. The toothed rings 11 mesh with multiple small gears 9. An annular slot 12 is opened on the top side of the fixing ring 2. A fixing frame 13 is installed on the base 1. Two pneumatic cylinders 14 are installed on the top side of the fixing frame 13. The working end of each pneumatic cylinder 14 is equipped with a pneumatic rod. The bottom end of each pneumatic rod is fitted with a sealing cover 15. Four second motors 16 are installed on the bottom side of the sealing cover 15. A polishing device is installed on the output end of each second motor 16. The polishing disc 17 is located inside the sealing cover 15. During operation, when polishing the mobile phone glass cover, multiple glass covers are first placed in the slots 8 inside the placement disc 7. Then, through the control panel 26, two pneumatic cylinders 14 are controlled to work synchronously, causing two pneumatic rods to push the sealing cover 15 down until the sealing cover 15 moves into the annular slot 12, thus forming a sealed space. At this time, the polishing disc 17 is in contact with the surface of the glass cover. Then, through the synchronous operation of four second motors 16, the four polishing discs 17 are rotated. At the same time, the first motor 4 is started, causing the rotating column 5 to drive the rotating disc 3 to rotate, thereby causing the placement disc 7 and the mobile phone glass cover to revolve. Meanwhile, under the mutual meshing of the gear ring 11 and multiple small gears 9, the rotating rod 6 drives the placement disc 7 and the mobile phone glass cover to rotate on their own axis. Through the combination of the revolution and rotation of the glass cover, the surface of the glass cover can fully contact the polishing disc 17, polishing from multiple angles, effectively improving the uniformity and comprehensiveness of polishing, and enhancing the polishing effect.

[0023] Please see Figure 1 and Figure 5As shown, a support frame 18 is fixedly connected to the fixed frame 13, and a dust collection box 19 is installed on the support frame 18. Two suction hoses 20 are connected between the dust collection box 19 and the sealing cover 15. A negative pressure pump 21 is installed on the support frame 18. The input port of the negative pressure pump 21 is connected to an air extraction pipe 22, and the output port of the negative pressure pump 21 is connected to an exhaust pipe 23. A filter screen is installed inside the dust collection box 19, and the filter screen is arranged around the port of the air extraction pipe 22. During operation, during the polishing process, the negative pressure pump 21 operates to extract the gas in the dust collection box 19 through the air extraction pipe 22 and discharge it through the exhaust pipe 23, so that the inside of the dust collection box 19 is in a negative pressure state. This allows the dust generated during the polishing process to be sucked into the dust collection box 19 through the suction hoses 20, thereby enabling timely cleaning and collection of the dust generated during the polishing process. This prevents the dust from accumulating in the polishing area and affecting the polishing quality, while maintaining a clean working environment and reducing adverse effects on the health of operators.

[0024] A dust collection box 19 has a discharge port on one side. Limiting slide rails 24 are installed on both sides of the discharge port. The two limiting slide rails 24 are fitted with a sealing plate 25. When using the device, the discharge port can be opened or closed as needed by the cooperation of the limiting slide rails 24 and the sealing plate 25. The discharge port facilitates the removal of debris from the dust collection box 19.

[0025] A control panel 26 is installed on the outer wall of the mounting bracket 13, and the control panel 26 is used to control the start and stop of the first motor 4, the second motor 16, the pneumatic cylinder 14 and the negative pressure pump 21. When using this device, by setting up the control panel 26, multiple drive devices can be concentrated together, which greatly improves the convenience of operation.

[0026] Working Principle: Existing mobile phone glass cover polishing devices only rotate or remain stationary in one direction during polishing, resulting in insufficient contact between the glass cover surface and the polishing disc 17. This prevents polishing from multiple angles, leading to uneven and incomplete polishing, affecting the final polishing effect and failing to meet high-quality polishing requirements. Therefore, a new polishing device for covers is proposed to address these issues. During the polishing of mobile phone glass covers, multiple glass covers are first secured in the slots 8 within the placement disc 7. Then, through the control panel 26, two pneumatic cylinders 14 are controlled to operate synchronously, causing two pneumatic rods to push the sealing cover 15 downwards until the sealing cover 15 reaches the ring... The polishing disc 17 is placed inside the slot 12, thus forming a sealed space. At this time, the polishing disc 17 is in contact with the surface of the glass cover. Then, the four second motors 16 work synchronously to make the four polishing discs 17 rotate. At the same time, the first motor 4 is started, which makes the rotating column 5 drive the rotating disc 3 to rotate. This causes the placement disc 7 and the mobile phone glass cover to revolve. Meanwhile, under the mutual meshing of the gear ring 11 and multiple small gears 9, the rotating rod 6 drives the placement disc 7 and the mobile phone glass cover to rotate. By combining the revolution and rotation of the glass cover, the surface of the glass cover can fully contact the polishing disc 17, polishing from multiple angles, effectively improving the uniformity and comprehensiveness of polishing, and enhancing the polishing effect.

[0027] During the polishing process, the negative pressure pump 21 operates to extract the gas in the dust collection box 19 through the suction pipe 22 and discharge it through the exhaust pipe 23, keeping the inside of the dust collection box 19 under negative pressure. This allows the dust generated during the polishing process to be sucked into the dust collection box 19 through the suction hose 20, thus enabling timely cleaning and collection of the dust generated during the polishing process. This prevents the dust from accumulating in the polishing area and affecting the polishing quality, while maintaining a clean working environment and reducing adverse effects on the health of the operators.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A polishing apparatus for cover plates, characterized in that: The system includes a base (1), on which a fixing ring (2) is fixedly connected. A rotating disk (3) is rotatably mounted inside the fixing ring (2). A first motor (4) is mounted on the base (1). The output end of the first motor (4) is connected to a rotating column (5). The top end of the rotating column (5) is fixedly connected to the bottom side wall of the rotating disk (3). Multiple rotating rods (6) are rotatably mounted on the rotating disk (3). Each rotating rod (6) has a placement plate (7) fixedly connected to its top end. Each placement plate (7) has two slots (8). Each rotating rod (6) has... Each base (1) is fitted with a small gear (9), and three support blocks (10) are fixedly connected to the base (1). The three support blocks (10) are fitted with toothed rings (11), and the toothed rings (11) mesh with the multiple small gears (9). The top side of the fixed ring (2) is provided with an annular slot (12). The base (1) is fitted with a fixed frame (13), and the top side of the fixed frame (13) is fitted with two pneumatic cylinders (14). The working end of each of the two pneumatic cylinders (14) is fitted with a pneumatic rod, and the bottom end of each of the two pneumatic rods is fitted with a sealing cover (15).

2. The polishing apparatus for a cover plate according to claim 1, characterized in that: Four second motors (16) are installed on the bottom side of the sealing cover (15). Each second motor (16) has a polishing disc (17) installed at its output end, and the polishing disc (17) is located inside the sealing cover (15).

3. The polishing apparatus for a cover plate according to claim 1, characterized in that: A support frame (18) is fixedly connected to the fixed frame (13), a dust collection box (19) is installed on the support frame (18), two suction hoses (20) are connected between the dust collection box (19) and the sealing cover (15), and a negative pressure pump (21) is installed on the support frame (18).

4. The polishing apparatus for a cover plate according to claim 3, characterized in that: The input port of the negative pressure pump (21) is connected to the suction pipe (22), the output port of the negative pressure pump (21) is connected to the exhaust pipe (23), and a filter screen is provided in the dust collection box (19), and the filter screen is arranged around the port of the suction pipe (22).

5. A polishing apparatus for a cover plate according to claim 3, characterized in that: The dust collection box (19) has a discharge port on one side, and a limit slide rail (24) is installed on both sides of the discharge port. The two limit slide rails (24) are fitted with a sealing plate (25).

6. The polishing apparatus for a cover plate according to claim 1, characterized in that: A control panel (26) is installed on the outer wall of the fixed frame (13), and the control panel (26) is used to control the start and stop of the first motor (4), the second motor (16), the pneumatic cylinder (14) and the negative pressure pump (21).