A mobile phone BGA product cleaning device

Abstract

The utility model relates to a kind of mobile phone BGA product cleaning device, including rack, camera cleaning station, arc edge cleaning station, large area cleaning station and non-contact secondary cleaning station are equipped along cleaning flow on rack, it is also equipped with the dustless cloth mechanism of washing horizontal shift module and each station;Camera cleaning station has the positive and negative reversal profiling grinding head of adaptive camera area, arc edge cleaning station has silica gel grinding head, large area cleaning station has large area grinding head, non-contact cleaning station has rotating airflow cleaning mechanism with rotary cleaning head and electrostatic eliminator;Washing horizontal shift module contains linear conveying module and XY mobile carrier, fixed carrier.This device solves the problem that existing equipment is not thorough for cleaning of special-shaped mobile phone back shell, easy to leave dirt and lint, not only clean thoroughly, strong adaptability, but also can improve cleaning yield.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a cleaning device for mobile phone BGA products. Background Technology

[0002] In the mobile phone manufacturing process, after the phone back cover is assembled, it needs to undergo damage inspection before shipment to ensure product quality. However, due to factors such as dust in the production environment and residual adhesives from the manufacturing process, dirt easily adheres to the surface of the phone back cover. This dirt can interfere with the test results during the inspection process, causing the testing equipment to misjudge the product as damaged, thus generating inaccurate test data, affecting the accuracy of product testing and the progress of subsequent production processes.

[0003] To address the aforementioned issues, existing technologies typically employ a rubber-coated grinding head in conjunction with a lint-free cloth to clean the surface of the phone's back cover. In practice, the grinding head moves in a circular motion driven by a motor, while the product moves linearly via a linear module. Through the synergistic action of these mechanical components, the product completes cleaning during its journey. The cleaned product is then sent to an AOI (Automated Optical Inspection) testing device for inspection.

[0004] However, the existing cleaning method has obvious drawbacks: it relies solely on simple circumferential wiping motions, which makes it difficult for the grinding head to fully adhere to the surface of irregularly shaped mobile phone back covers. This results in certain areas (such as around the camera and rounded corner platforms) not being effectively cleaned, leaving dirt residue. At the same time, the lint-free cloth is prone to shedding lint during the wiping process. These lints adhere to the product surface, not only failing to achieve the desired cleaning effect but also potentially causing new interference to subsequent testing processes. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a mobile phone BGA product cleaning device, which solves the defects of existing mobile phone back cover cleaning equipment that is not thorough in cleaning irregularly shaped products and is prone to leaving dirt and lint.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a mobile phone BGA product cleaning device, including a frame, on which a camera cleaning station, an arc edge cleaning station, a large surface cleaning station, and a non-contact secondary cleaning station are arranged sequentially along the product cleaning process. The frame is also equipped with a cleaning transverse module for moving the product through each cleaning station in sequence, and a dust-free cloth mechanism set on each cleaning station. The camera cleaning station is equipped with a contour grinding head for cleaning the camera area. The arc edge cleaning station is equipped with a silicone grinding head for cleaning the arc edge area of ​​the side arc corner platform of the camera. The large surface cleaning station is equipped with a large surface grinding head for cleaning the large surface of the product. The non-contact secondary cleaning station is equipped with a rotating airflow cleaning mechanism.

[0007] Furthermore, the cleaning transverse movement module of this utility model includes a linear conveying module and an XY moving carrier and a fixed carrier slidably disposed on the linear conveying module; the XY moving carrier and the fixed carrier respectively drive the product to different cleaning stations; the XY moving carrier also drives the product to achieve trajectory movement in the XY direction.

[0008] Furthermore, the rack described in this utility model is also provided with multiple buffer stations; the buffer stations are respectively arranged between each cleaning station.

[0009] Furthermore, the contour grinding head described in this utility model is adapted to the area around the camera on the back of a mobile phone, and the contour grinding head is connected to a forward and reverse drive motor, which can perform forward and reverse rotation cleaning of the area around the camera.

[0010] Furthermore, the rotating airflow cleaning mechanism of this utility model includes a housing, on which an air inlet and an air suction port are provided. The inner cavity of the housing is provided with a plurality of rotating cleaning heads with nozzles. The rotating cleaning heads are connected to the air inlet. An electrostatic eliminator is also provided on the inner side of the housing. The electrostatic eliminator and the rotating cleaning heads are mounted on a mounting block inside the housing. A gap is left between the mounting block and the housing. An airflow channel is formed between the electrostatic eliminator and the mounting block and the side wall of the housing.

[0011] Furthermore, the air path of the rotary airflow cleaning mechanism of this utility model is as follows: air is introduced into the air inlet while air is drawn out through the air suction port; the rotary cleaning head rotates and blows airflow onto the product surface through the nozzle; the airflow flows out of the air suction port along the product surface through the airflow channel, while simultaneously performing secondary cleaning on the product's blind spots and residual lint on the surface.

[0012] The beneficial effect of this utility model is that it solves the defects existing in the background technology.

[0013] The camera area cleaning head, employing a contour-following structure and combined with forward and reverse rotation, can precisely conform to irregular areas around the camera, solving the problem of blind spots in cleaning these areas. Utilizing an XY moving carrier to propel the product along a trajectory, and in conjunction with the curved-edge cleaning head, it can adapt to the rounded corners of products of various shapes, achieving thorough cleaning of curved areas. The large-area cleaning head, combined with the rubbing action of a lint-free cloth, efficiently removes dirt from large flat surfaces of the product. The non-contact cleaning mechanism, through the combined action of blowing and suction, blows away lint and residual dust generated during previous cleaning processes and promptly sucks them away, effectively solving the problem of secondary pollution caused by lint shedding from the lint-free cloth and further improving the product cleaning yield. It is compatible with various models of irregularly shaped mobile phone back covers, offering a wide range of applications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the cleaning transverse movement module of this utility model;

[0016] Figure 3 This is a schematic diagram of the contour grinding head and cleaning mechanism for the camera cleaning station of this utility model;

[0017] Figure 4 This is a schematic diagram of the silicone grinding head and cleaning mechanism for the arc-edge cleaning station of this utility model;

[0018] Figure 5 This is a schematic diagram of the large-area grinding head and cleaning assembly for the large-area cleaning station of this utility model;

[0019] Figure 6 This is a schematic diagram of the rotating airflow cleaning mechanism of this utility model;

[0020] Figure 7 This is a schematic diagram of the air path of the rotating airflow cleaning mechanism of this utility model;

[0021] In the diagram: 21. Rack; 22. Camera cleaning station; 23. Curved edge cleaning station; 24. Large surface cleaning station; 25. Non-contact secondary cleaning station; 26. Cleaning transverse module; 27. Cleanroom cloth mechanism; 28. Mobile phone BGA product;

[0022] 221. Contouring grinding head; 231. Silicone grinding head; 241. Large surface grinding head; 251. Rotary airflow cleaning mechanism; 261. Linear conveyor module; 262. XY moving carrier; 263. Fixed carrier;

[0023] 2511. Housing; 2512. Air inlet; 2513. Air suction port; 2514. Rotary cleaning head; 2515. Static eliminator; 2516. Mounting block; 2517. Gap. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] like Figures 1-7The illustrated mobile phone BGA product cleaning device includes a frame 21. Along the product cleaning process, the frame 21 is sequentially equipped with a camera cleaning station 22, an arc edge cleaning station 23, a large surface cleaning station 24, and a non-contact secondary cleaning station 25. The frame also includes a cleaning transverse module 26 for moving the product sequentially through each cleaning station, and a lint-free cloth mechanism 27 positioned at each cleaning station. The frame 21 also has multiple buffer stations, which are located between the cleaning stations. During cleaning, an XY moving carrier and a fixed carrier cooperate with the cleaning at each station via the buffer stations.

[0026] The cleaning transverse module 26 includes a linear conveying module 261 and an XY moving carrier 262 and a fixed carrier 263 slidably disposed on the linear conveying module; the XY moving carrier 263 and the fixed carrier 263 respectively drive the product to different cleaning stations; the XY moving carrier also drives the product to achieve trajectory movement in the XY direction.

[0027] The cleanroom wipe mechanism 27 is positioned above each cleaning station and includes a winding assembly, an unwinding assembly, and a tensioning assembly. New cleanroom wipes are wound onto the unwinding assembly. The wipes pass sequentially through the tensioning assembly and cover the cleaning ends of each cleaning head. Finally, the winding assembly winds them up. The tensioning assembly uses a spring tensioning structure to maintain the tension of the cleanroom wipes during the winding and unwinding process, ensuring close contact between the cleanroom wipes and the cleaning heads and product surfaces.

[0028] The camera cleaning station 22 is equipped with a contour grinding head 221 for cleaning the camera area; the contour grinding head has a concave structure that is adapted to the area around the camera on the back of the mobile phone, and the concave structure can be fitted onto the camera. The contour grinding head is connected to a forward and reverse drive motor, which can perform forward and reverse coverage cleaning of the area around the camera of the product.

[0029] The arc-edge cleaning station 23 is equipped with a silicone grinding head 231 for cleaning the arc-edge area of ​​the platform on the side of the camera. The XY moving carrier has a servo drive motor and a PLC trajectory control module, which can preset the corresponding motion trajectory according to the shape of the arc edge of different products. When the product moves to the arc-edge cleaning station with the XY moving carrier, the silicone grinding head fits against the arc edge of the product, and the XY moving carrier drives the product to move according to the preset trajectory, so that the silicone grinding head performs trajectory-based cleaning of the arc edge area.

[0030] The large-area cleaning station is equipped with 24 large-area grinding heads 241 for cleaning the large surface area of ​​the product; the structure of the large-area grinding head is a conventional cleaning grinding head, which will not be described in detail here. The motor drives the large-area grinding head to perform a rubbing motion, which contacts the large flat area of ​​the product and removes dirt from the area through the rubbing action.

[0031] After the product undergoes camera cleaning, curved edge cleaning, and large-area cleaning in sequence, lint and residual dust may be generated. Therefore, a non-contact secondary cleaning station is set up to further improve the product cleaning yield.

[0032] A rotating airflow cleaning mechanism 251 is provided on the non-contact secondary cleaning station 25. The rotating airflow cleaning mechanism includes a housing 2511, on which an air inlet 2512 and an air suction port 2513 are provided. Multiple rotating cleaning heads 2514 (typhoon cleaning heads) with nozzles are provided in the inner cavity of the housing. The rotating cleaning heads are connected to the air inlet. An electrostatic eliminator 2515 is also provided on the inner side of the housing. The electrostatic eliminator and the rotating cleaning heads are set on a mounting block 2516 inside the housing. A gap 2517 is left between the mounting block and the housing. An airflow channel is formed between the electrostatic eliminator and the mounting block and the side wall of the housing.

[0033] The air path of the rotating airflow cleaning mechanism is as follows: air is introduced into the air inlet while air is drawn out through the air suction port; the rotating cleaning head rotates and blows airflow onto the product surface through the nozzle; the airflow flows out of the air suction port along the product surface through the airflow channel, while performing secondary cleaning on the product cleaning blind spots and residual lint on the surface.

[0034] The rotary cleaning head sprays high-pressure airflow onto the product surface to blow away residual dust and lint from the lint-free cloth. The suction port is connected to a negative pressure device, which, while the rotary cleaning head is spraying airflow, uses negative pressure suction to promptly remove the blown-away dirt and transport it through a pipe to a dust collection device, preventing dirt from re-adhering to the product surface.

[0035] The rotating airflow cleaning mechanism is suitable for cleaning flat products. It uses a combination of static elimination, blowing, and suction. The static eliminator neutralizes the static electricity of the dust, the rotating airflow picks up the dust, and the suction carries away the dust particles, achieving a surface cleaning effect.

[0036] The rotary cleaning head uses a high-speed rotating nozzle to blow air. The airflow sweeps at a fixed speed, angle, and frequency, causing air pulsation. This, combined with the gaps, forms a powerful U-shaped airflow channel to remove burrs adhering to the product surface.

[0037] The above description is only a specific embodiment of the present utility model. Various examples and illustrations do not constitute a limitation on the substantive content of the present utility model. Those skilled in the art can make modifications or variations to the above-described specific embodiments after reading the description without departing from the essence and scope of the utility model.

Claims

1. A cleaning device for mobile phone BGA products, comprising a frame, characterized in that: The frame is sequentially equipped with a camera cleaning station, an arc edge cleaning station, a large surface cleaning station, and a non-contact secondary cleaning station along the product cleaning process. The frame also includes a cleaning transverse module for moving the product through each cleaning station, and a lint-free cloth mechanism at each station. The camera cleaning station is equipped with a contour grinding head for cleaning the camera area; the arc edge cleaning station is equipped with a silicone grinding head for cleaning the arc edge area of ​​the camera's side platform; the large surface cleaning station is equipped with a large surface grinding head for cleaning the large surface of the product; and the non-contact secondary cleaning station is equipped with a rotating airflow cleaning mechanism.

2. The mobile phone BGA product cleaning device as described in claim 1, characterized in that: The cleaning transverse transfer module includes a linear conveying module and an XY moving carrier and a fixed carrier slidably mounted on the linear conveying module; the XY moving carrier and the fixed carrier respectively drive the product to different cleaning stations; the XY moving carrier also drives the product to achieve trajectory movement in the XY direction.

3. The mobile phone BGA product cleaning device as described in claim 1, characterized in that: The contour grinding head is adapted to the area around the camera on the back of the mobile phone, and the contour grinding head is connected to a forward and reverse drive motor to perform forward and reverse coverage cleaning of the area around the camera.

4. The mobile phone BGA product cleaning device as described in claim 1, characterized in that: The rotating airflow cleaning mechanism includes a housing with an air inlet and an air intake. Multiple rotating cleaning heads with nozzles are located inside the housing cavity. Each rotating cleaning head is connected to the air inlet. An electrostatic eliminator is also located inside the housing. The electrostatic eliminator and the rotating cleaning heads are mounted on a mounting block inside the housing, with a gap between the mounting block and the housing. An airflow channel is formed between the electrostatic eliminator, the mounting block, and the side wall of the housing.

5. A mobile phone BGA product cleaning device as described in claim 4, characterized in that: The air path of the rotating airflow cleaning mechanism is as follows: air is introduced through the air inlet while air is drawn out through the air suction port; the rotating cleaning head rotates and blows airflow onto the product surface through the nozzle; the airflow flows out of the air suction port along the product surface through the airflow channel, while performing secondary cleaning on the product cleaning blind spots and residual lint on the surface.

6. A mobile phone BGA product cleaning device as described in claim 2, characterized in that: The rack is also equipped with multiple buffer stations; the buffer stations are respectively located between each cleaning station.

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