A magnetic sheet processing device for mobile phone wireless charging production

By designing a mobile phone wireless charging magnetic sheet processing device with fixing, grinding and chip removal mechanisms, the problem of burrs and rough edges in traditional processes has been solved, achieving efficient and precise magnetic sheet ring processing and improving the automation level and processing quality of the equipment.

CN224939664UActive Publication Date: 2026-11-06SHANGHAI MAGWAY MAGNETIC CO LTD
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Patent Information

Application Number
CN202522470982.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-21
Publication Date
2026-11-06
Estimated Expiration
2035-11-21

AI Technical Summary

Technical Problem

In the traditional processing of magnetic sheets for wireless charging of mobile phones, wire cutting and stamping processes cannot guarantee the smoothness of the magnetic sheet surface, resulting in burrs and rough edges, which affect assembly compatibility and reliability.

Method used

A processing device including a fixing mechanism, a grinding mechanism, a chip removal mechanism, and a material collection component is designed. The magnetic ring is fixed by a negative pressure pump and an air pump. The grinding mechanism performs uniform grinding through a rotating shaft and a grinding stone. The chip removal mechanism collects the debris, thus achieving automated processing.

Benefits of technology

This improved the machining accuracy and efficiency of magnetic rings, ensured their stability and cleanliness, and enhanced machining quality and equipment maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a magnetic sheet processing device for mobile phone wireless charging production, belonging to the field of magnetic sheet processing technology. The device includes a cabinet, with a fixing mechanism for fixing magnetic sheet rings on the upper surface of the cabinet. Above the fixing mechanism is a grinding mechanism for grinding the magnetic sheet rings, and a chip removal mechanism is located on one side of the fixing mechanism. Inside the cabinet is a receiving component for storing the ground magnetic sheet rings. The grinding mechanism has a connecting component for fixing the grinding disc. The fixing mechanism of this utility model, through the cooperation of a negative pressure pump and an adsorption hole, can quickly adsorb and fix the magnetic sheet rings in the retaining groove, preventing displacement during grinding and ensuring processing accuracy. After grinding, an air pump blows air through the air hole, quickly blowing the magnetic sheet rings into the receiving component, achieving automatic unloading without manual operation and significantly improving processing efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of magnetic sheet processing technology, specifically relating to a magnetic sheet processing device for wireless charging production of mobile phones. Background Technology

[0002] With the popularization and upgrading of wireless charging technology in the field of smartphones, wireless charging has become one of the core convenient functions of mobile phones. It is widely used in various usage scenarios such as daily charging, car charging, and office charging. Its charging efficiency, stability and safety have gradually become the core indicators of user concern. As a key component of the wireless charging system, the wireless charging magnetic sheet can effectively concentrate the magnetic field, reduce magnetic leakage loss, improve energy transmission efficiency, and at the same time increase the attraction between the mobile phone and the charging device to prevent them from separating.

[0003] In the traditional processing of magnetic sheets for wireless charging of mobile phones, wire cutting and stamping are the main processes. However, due to the limitations of the cutting principle and processing precision, it is often difficult to guarantee the smoothness of the magnetic sheet surface. The processed magnetic sheet not only has a low surface finish, but also is more prone to irregular cutting burrs and rough edges. These burrs may cause some problems in the subsequent assembly process. On the one hand, the burrs may cause the magnetic sheet to not fit tightly with the mounting slot inside the mobile phone, resulting in loosening and displacement. On the other hand, the sharp burrs may even scratch the surrounding components or the package shell, hindering product assembly. Therefore, a grinding process is needed to thoroughly remove these burrs and rough edges to ensure the assembly compatibility and reliability of the magnetic sheet. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a magnetic sheet processing device for mobile phone wireless charging production.

[0005] The technical solution adopted to solve the above technical problems is: a magnetic sheet processing device for mobile phone wireless charging production, including a cabinet, a fixing mechanism for fixing magnetic sheet rings is provided on the upper surface of the cabinet, a grinding mechanism for grinding magnetic sheet rings is provided above the fixing mechanism, and a chip removal mechanism for chip removal is provided on one side of the fixing mechanism.

[0006] The cabinet is equipped with a receiving component for storing polished magnetic rings;

[0007] The grinding mechanism is equipped with a connecting component for fixing the grinding disc.

[0008] Furthermore, the fixing mechanism includes several material feeding racks mounted on the cabinet. The upper surface of each material feeding rack has a snap-fit ​​groove, and a rubber ring is installed inside the snap-fit ​​groove. Both the snap-fit ​​groove and the rubber ring have several adsorption holes and air blowing holes. The bottom end of each material feeding rack has several air guide pipes. One end of each air guide pipe is connected to an air blowing pump and a negative pressure pump. The air blowing pump is connected to the air blowing holes through the air guide pipes, and the negative pressure pump is connected to the adsorption holes through the air guide pipes.

[0009] Through the above technical solution, the fixing mechanism mainly consists of a feeding rack, a rubber ring, an air pump, and a negative pressure pump. The negative pressure pump is connected to the adsorption hole through an air guide pipe, which can generate negative pressure to adsorb and fix the magnetic ring in the snap-fit ​​groove, preventing the magnetic ring from shifting during grinding. The air pump is connected to the air blowing hole through an air guide pipe, which can blow airflow into the receiving component after grinding. The rubber ring can protect the magnetic ring from wear and enhance the adsorption sealing, thereby ensuring the stability of the magnetic ring fixing and the convenience of cleaning, and improving the processing accuracy and efficiency.

[0010] Furthermore, the polishing mechanism includes a telescopic motor mounted on the top plate of the cabinet. A movable carrier plate is mounted on the telescopic rod of the telescopic motor. Several rotating shafts are mounted on the bottom surface of the movable carrier plate. Polishing stones are mounted on the bottom of the rotating shafts. Each rotating shaft is equipped with a transmission gear. A transmission toothed belt is mounted on the outer wall of the transmission gear. An output motor is mounted on the upper surface of the movable carrier plate. The output shaft of the output motor is keyed to one of the rotating shafts. Several guide rods are mounted on the top surface of the movable carrier plate, and the guide rods penetrate the top plate of the cabinet.

[0011] Through the above technical solution, the output motor of the grinding mechanism drives multiple rotating shafts to rotate synchronously through transmission gears and transmission belts, which drives the grinding stone to grind the magnetic ring evenly. The telescopic motor can drive the moving carrier plate to move the grinding stone up and down, adapting to the grinding needs of magnetic rings of different thicknesses. The guide rod ensures that the moving carrier plate moves accurately, avoiding uneven grinding caused by the grinding stone deflection, thereby achieving efficient and uniform grinding of the magnetic ring and improving the processing quality.

[0012] Furthermore, the chip removal mechanism includes a dust extraction motor installed inside the cabinet. The air inlet of the dust extraction motor is provided with a chip guide pipe, and a chip collection cover is provided at the top of the chip guide pipe. The chip collection cover is located on one side of the material feeding rack. The air outlet of the dust extraction motor is connected to a chip storage box through a conduit. A chip storage drawer is slidably inserted into the chip storage box.

[0013] Through the above technical solution, the dust extraction motor of the chip removal mechanism can suck the grinding debris into the chip collection drawer in the chip storage box through the chip collection hood and chip guide pipe, so as to achieve centralized collection of debris. The chip collection drawer can be slid out to facilitate the cleaning of debris, avoid debris residue affecting the magnetic ring processing environment and subsequent processing accuracy, and ensure the cleanliness and continuity of the processing process.

[0014] Furthermore, the connecting assembly includes a insertion hole formed in the rotating shaft, into which a insertion rod is inserted, and the insertion rod is disposed on the upper surface of the polishing stone. The outer wall of the bottom end of the insertion rod is provided with an external thread, and the outer wall of the rotating shaft is provided with an internal thread, and the internal thread and the external thread are threadedly engaged. The insertion hole is provided with a plurality of keyways, and the outer wall of the insertion rod is provided with a plurality of protruding keys, which are inserted into the keyways.

[0015] Through the above technical solution, the plug rod and plug hole of the connecting component achieve circumferential positioning through the cooperation of the convex key and keyway, ensuring that the grinding stone and the rotating shaft rotate synchronously. The threaded engagement of the internal thread and the external thread can firmly fix the grinding stone on the rotating shaft, while facilitating the disassembly and replacement of the grinding stone. When the grinding stone is worn, a new grinding stone can be quickly replaced, improving the equipment maintenance efficiency and the continuity of processing.

[0016] Furthermore, the receiving component includes a feeding port on the operating table of the cabinet, a pouring trough is provided on the side of the feeding port near the feeding rack, a storage drawer is provided on the side of the pouring trough, and a handle is provided on the outer surface of the side of the storage drawer.

[0017] Through the above technical solution, the material receiving component's pouring trough can guide the polished magnetic rings into the storage drawer, realizing the automatic collection of magnetic rings. The storage drawer can be slid out with a handle, which facilitates the sorting and transfer of the collected magnetic rings and improves the convenience of material receiving.

[0018] Furthermore, the feeding rack has several air guide holes, and the adsorption holes and blowing holes are connected to the air guide pipes through the air guide holes.

[0019] Through the above technical solution, the air guide holes in the feeding rack provide channels for airflow transmission between the adsorption holes and the blowing holes, so that the adsorption force of the negative pressure pump and the blowing force of the blowing pump can be efficiently transmitted to the surface of the magnetic ring, ensuring the stable adsorption and rapid detachment of the magnetic ring, and ensuring the reliable realization of the function of the fixing mechanism.

[0020] The beneficial effects of this utility model are as follows: (1) By setting a fixing mechanism, this utility model can quickly adsorb and fix the magnetic ring in the snap-fit ​​groove through the cooperation of the negative pressure pump and the adsorption hole, avoiding displacement during grinding and ensuring processing accuracy. After grinding, the air pump blows air through the air hole, which can quickly blow the magnetic ring into the receiving component, realizing automatic feeding without manual operation and greatly improving processing efficiency; (2) By setting a connecting component, the plug rod of the connecting component and the rotating shaft are circumferentially positioned through the convex key and keyway, and the internal thread and the external thread can be threaded together. The grinding stone is firmly fixed and easy to disassemble and assemble. When the grinding stone is worn, the old grinding stone can be quickly unscrewed and replaced with a new grinding stone without complicated operation, which improves the equipment maintenance efficiency; (3) By setting up a chip removal mechanism, the dust collection motor can concentrate the chips generated by grinding into the chip storage drawer through the chip collection cover and chip guide pipe, avoiding the chips remaining in the processing area. This not only keeps the processing environment clean, but also prevents the chips from affecting the subsequent processing accuracy of the magnetic ring, ensuring the processing quality of the magnetic ring. At the same time, the chip storage drawer can be slid out, which is convenient for chip cleaning and improves the convenience of operation. Attached Figure Description

[0021] Figure 1 This is a first-view structural diagram of the present invention;

[0022] Figure 2 This is a second-view structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the chip removal mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the grinding mechanism structure of this utility model;

[0026] Figure 6 This is a magnified view of point D in section 5.

[0027] Reference numerals: 1. Cabinet; 2. Fixing mechanism; 201. Feed rack; 202. Rubber ring; 203. Snap-fit ​​groove; 204. Adsorption hole; 205. Air blowing hole; 206. Air guide pipe; 207. Air pump; 208. Negative pressure pump; 3. Grinding mechanism; 301. Telescopic motor; 302. Moving carrier plate; 303. Rotating shaft; 304. Transmission toothed belt; 305. Transmission gear; 306. Guide rod; 307. Output motor; 308. Polishing stone; 4. Material receiving assembly; 401. Feed inlet; 402. Discharge chute; 403. Material storage drawer; 404. Handle; 5. Chip removal mechanism; 501. Chip collection hood; 502. Chip guide tube; 503. Dust extraction motor; 504. Chip storage box; 505. Chip storage drawer; 6. Connecting assembly; 601. Insertion hole; 602. Insertion rod; 603. External thread; 604. Internal thread; 605. Raised key; 606. Keyway. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] like Figures 1-6 As shown in this embodiment, a magnetic sheet processing device for mobile phone wireless charging production includes a cabinet 1. A fixing mechanism 2 for fixing magnetic sheet rings is provided on the upper surface of the cabinet 1. The fixing mechanism 2 includes three feeding racks 201 evenly distributed in the operating area of ​​the cabinet 1. The upper surface of the feeding racks 201 has circular snap-fit ​​grooves 203 adapted to the outer diameter of the magnetic sheet rings, which can initially limit the magnetic sheet rings. A rubber ring 202 is provided inside the snap-fit ​​grooves 203, and the inner diameter of the rubber ring 202 is the same as the inner diameter of the magnetic sheet ring. Elastic deformation enhances the fixing and sealing performance. Both the snap-fit ​​grooves 203 and the rubber ring 202 have several adsorption holes 204 and air blowing holes 205. 5. Several air guide pipes 206 are provided at the bottom of the feeding rack 201. The air guide pipes 206 are made of PU hose. One end of two different air guide pipes 206 is connected to an air pump 207 and a negative pressure pump 208, respectively. When the negative pressure pump 208 is started, it generates negative pressure through the adsorption hole 204 to tightly adsorb the magnetic ring in the snap-fit ​​groove 203 to prevent displacement during grinding. The air pump 207 blows high-pressure gas through the air blowing hole 205 to blow the magnetic ring out of the snap-fit ​​groove 203, which facilitates subsequent unloading and can also clean the residual debris in the groove. The air pump 207 is connected to the air blowing hole 205 through the air guide pipe 206, and the negative pressure pump 208 is connected to several adsorption holes 204 through the air guide pipe 206.

[0030] like Figures 1-6As shown, a grinding mechanism 3 for grinding magnetic rings is provided above the fixing mechanism 2 in this embodiment. The grinding mechanism 3 includes a telescopic motor 301 installed on the top plate of the cabinet 1. The bottom end of the telescopic rod of the telescopic motor 301 is rigidly connected to the movable carrier plate 302 through a flange. Three rotating shafts 303 are vertically installed on the bottom of the movable carrier plate 302 through bearings. The number of rotating shafts 303 corresponds one-to-one with the material feeding rack 201. A grinding stone 308 is fixed to the bottom end through a connecting component 6. A transmission gear 305 is provided on each of the rotating shafts 303. The outer wall of the transmission gear 305... The set includes a transmission toothed belt 304, and an output motor 307 is installed on the upper surface of the movable carrier plate 302. The output shaft of the output motor 307 is keyed to one of the rotating shafts 303. After starting, the transmission toothed belt 304 drives all the rotating shafts 303 to rotate synchronously, ensuring that the grinding speed of the three magnetic rings is consistent. Several guide rods 306 are installed on the top surface of the movable carrier plate 302. The guide rods 306 pass through the guide sleeve of the top plate of the cabinet 1. The guide sleeve has a built-in linear bearing to ensure the verticality of the movable carrier plate 302 when it is raised and lowered, and to prevent the grinding stone 308 from tilting, which would cause uneven grinding of the magnetic rings.

[0031] like Figures 1-3 As shown, a chip removal mechanism 5 for chip removal is provided on one side of the fixing mechanism 2 in this embodiment. The chip removal mechanism 5 includes a dust extraction motor 503 installed inside the cabinet 1. A chip guide pipe 502 is provided at the air inlet of the dust extraction motor 503. A chip collection cover 501 is provided at the top of the chip guide pipe 502. The chip collection cover 501 has a horn-shaped structure and is made of transparent acrylic material. It is fixed to one side of the feeding rack 201, with its opening facing the snap-fit ​​groove 203. It can capture the chips generated by grinding. The air outlet of the dust extraction motor 503 is connected to a chip storage box 504 through a conduit. The chip storage box 504 is fixed to the side of the cabinet 1. A chip storage drawer 505 is slidably inserted inside. A transparent observation window is provided at the front end of the chip storage drawer 505, which can be used to view the amount of chip accumulation in real time.

[0032] like Figures 1-3 As shown, the cabinet 1 in this embodiment is equipped with a receiving component 4 for storing polished magnetic rings. The receiving component 4 includes a feeding port 401 on the operating table of the cabinet 1. The feeding port 401 is a rectangular opening. An inclined pouring trough 402 is provided on the side near the feeding rack 201. The pouring trough 402 is made of stainless steel with a smooth surface, which can guide the magnetic rings to slide down smoothly. The lower end of the pouring trough 402 extends to the storage drawer 403 inside the cabinet 1. The storage drawer 403 is slidably installed in the equipment area of ​​the cabinet 1. The inside is lined with cushioning sponge to prevent the magnetic rings from being damaged by collision when they slide down. A handle 404 is provided on the outer surface of one side of the storage drawer 403 for easy removal of materials.

[0033] like Figures 5-6As shown, the grinding mechanism 3 in this embodiment is provided with a connecting component 6 for fixing the grinding disc. The connecting component 6 includes an insertion hole 601 opened in the rotating shaft 303. A corresponding insertion rod 602 is integrally formed on the upper surface of the grinding stone 308. The outer wall of the insertion rod 602 is machined with an external thread 603. The outer wall of the rotating shaft 303 is provided with an internal thread buckle 604, and the internal thread buckle 604 and the external thread 603 are threadedly engaged. The insertion rod 602 can be locked in the insertion hole 601 through the thread engagement, so that the connection is firm and prevents loosening. The inner wall of the insertion hole 601 is provided with four keyways 606 along the axial direction. The outer wall of the insertion rod 602 is provided with four convex keys 605. The convex keys 605 and the keyways 606 are clearance-fitted to transmit rotational torque and prevent the insertion rod 602 from sliding relative to the insertion hole 601 during grinding, so as to ensure stable grinding power.

[0034] Working principle: Three magnetic rings to be processed are placed into the slots 203 of the feeding rack 201. The negative pressure pump 208 is started, and negative pressure is generated through the suction hole 204 to fix the magnetic rings. According to the thickness of the magnetic rings, the stroke of the telescopic motor 301 is adjusted, the speed of the output motor 307 is set, and the dust collection motor 503 is started to collect waste. The telescopic motor 301 is started, and the moving carrier plate 302 descends along the guide rod 306. The polishing stone 308 fits against the magnetic rings. The output motor 307 drives the three rotating shafts 303 to rotate synchronously through the transmission toothed belt 304 to complete the fine polishing. After polishing, the telescopic motor 301 drives the polishing mechanism 3 to reset, the negative pressure pump 208 is turned off, and the air pump 207 is started. The air blower 207 blows air from the air hole 205 to lift the magnetic rings and blow them into the pouring trough 402. The magnetic rings slide into the storage drawer 403 through the pouring trough 402. The observation window of the chip storage drawer 505 is observed. When it is full, it is pulled out to clean the chips.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A magnetic sheet processing device for mobile phone wireless charging production, comprising a cabinet (1), characterized in that: The upper surface of the cabinet (1) is provided with a fixing mechanism (2) for fixing the magnetic ring, and a grinding mechanism (3) for grinding the magnetic ring is provided above the fixing mechanism (2). A chip removal mechanism (5) for chip removal is provided on one side of the fixing mechanism (2). The cabinet (1) is equipped with a receiving component (4) for storing polished magnetic rings; The grinding mechanism (3) is provided with a connecting component (6) for fixing the grinding disc.

2. The magnetic sheet processing apparatus for mobile phone wireless charging production according to claim 1, characterized in that, The fixing mechanism (2) includes several feeding racks (201) mounted on the cabinet (1). Each feeding rack (201) has a snap-fit ​​groove (203) on its upper surface. A rubber ring (202) is placed inside each snap-fit ​​groove (203). Both the snap-fit ​​groove (203) and the rubber ring (202) have several suction holes (204). Both the snap-fit ​​groove (203) and the rubber ring (202) also have blowing holes. Air hole (205), the bottom end of the feeding rack (201) is provided with several air guide pipes (206), one end of the several air guide pipes (206) is respectively connected to an air blowing pump (207) and a negative pressure pump (208), the air blowing pump (207) is connected to the air blowing hole (205) through the air guide pipe (206), and the negative pressure pump (208) is connected to several adsorption holes (204) through the air guide pipe (206).

3. The magnetic sheet processing apparatus for mobile phone wireless charging production according to claim 1, characterized in that, The polishing mechanism (3) includes a telescopic motor (301) mounted on the top plate of the cabinet (1). A movable carrier plate (302) is mounted on the telescopic rod of the telescopic motor (301). Several rotating shafts (303) are mounted on the bottom surface of the movable carrier plate (302). Polishing stones (308) are mounted on the bottom of the rotating shafts (303). A transmission gear (305) is mounted on each of the rotating shafts (303). A transmission toothed belt (304) is mounted on the outer wall of the transmission gears (305). An output motor (307) is mounted on the upper surface of the movable carrier plate (302). The output shaft of the output motor (307) is keyed to one of the rotating shafts (303). Several guide rods (306) are mounted on the top surface of the movable carrier plate (302), and the guide rods (306) penetrate the top plate of the cabinet (1).

4. The magnetic sheet processing apparatus for mobile phone wireless charging production according to claim 1, characterized in that, The chip removal mechanism (5) includes a dust extraction motor (503) installed inside the cabinet (1). The air inlet of the dust extraction motor (503) is provided with a chip guide pipe (502). The top of the chip guide pipe (502) is provided with a chip collection cover (501), and the chip collection cover (501) is located on one side of the feeding rack (201). The air outlet of the dust extraction motor (503) is connected to a chip storage box (504) through a conduit. A chip storage drawer (505) is slidably inserted into the chip storage box (504).

5. The magnetic sheet processing apparatus for mobile phone wireless charging production according to claim 3, characterized in that, The connecting assembly (6) includes a insertion hole (601) opened in the rotating shaft (303), a insertion rod (602) is inserted into the insertion hole (601), and the insertion rod (602) is disposed on the upper surface of the polishing stone (308). The bottom outer wall of the insertion rod (602) is provided with an external thread (603), and the outer wall of the rotating shaft (303) is provided with an internal thread (604), and the internal thread (604) is threadedly engaged with the external thread (603). A plurality of keyways (606) are opened in the insertion hole (601), and a plurality of protruding keys (605) are provided on the outer wall of the insertion rod (602), and the protruding keys (605) are inserted into the keyways (606).

6. The magnetic sheet processing apparatus for mobile phone wireless charging production according to claim 1, characterized in that, The receiving component (4) includes a feeding port (401) set on the operating table of the cabinet (1). The feeding port (401) is provided with a pouring trough (402) on the side near the feeding rack (201). A storage drawer (403) is provided on the side of the pouring trough (402). A handle (404) is provided on the outer surface of the side of the storage drawer (403).

7. The magnetic sheet processing apparatus for mobile phone wireless charging production according to claim 2, characterized in that, The feeding rack (201) has several air guide holes. The adsorption hole (204) and the blowing hole (205) are connected to the air guide pipe (206) through the air guide holes.