High-precision film pasting device

Abstract

The utility model discloses a high-precision film pasting device, and belongs to the technical field of film pasting. The utility model provides a high-precision film pasting device which comprises a rack, a film material supply mechanism, a film material suction mechanism, a film material positioning mechanism, a glass supply mechanism and a glass positioning mechanism, wherein the film material supply mechanism, the film material suction mechanism and the film material positioning mechanism are arranged at one end of the rack, and the glass supply mechanism and the glass positioning mechanism are arranged at the other end of the rack. The film material feeding mechanism adopts a film material feeding feeder to automatically feed materials, the film material positioning mechanism adopts two CCD (Charge Coupled Device) cameras fixed on the rack to carry out diagonal shooting on the film material from the lower part of the film material, and the glass positioning mechanism adopts another two cameras fixed on the rack to carry out diagonal shooting on the glass from the upper part of the glass. According to the scheme of the utility model, errors caused by movement of the CCD camera are reduced, the overall precision of the laminating device is improved, and precision control within + / -0.025 mm can be realized by matching with the high-precision X / Y / Z-axis moving module and the UVW alignment platform.

Description

Technical Field

[0001] This utility model relates to the field of film application technology, and in particular to a high-precision film application device. Background Technology

[0002] In the field of precision screen protector application for smartphones, especially for 2.5D and 3D curved screens, certain mobile device models require extremely high levels of accuracy in the application process. Specifically, the application equipment must be able to achieve precision control within ±0.025 mm (not considering manufacturing errors). However, existing automated application equipment struggles to meet this stringent requirement due to limitations in several areas: film material pickup and positioning, glass screen gripping and alignment, the movement accuracy of the CCD camera guidance system, and alignment accuracy in the final bonding step. These errors accumulate, causing the overall accuracy of the entire application process to exceed the required range. Utility Model Content

[0003] This invention addresses the aforementioned problems in the prior art by providing a high-precision film application device.

[0004] The high-precision film application device provided by this utility model includes a frame, a film material feeding mechanism, a film material suction mechanism, and a film material positioning mechanism disposed at one end of the frame, and a glass feeding mechanism and a glass positioning mechanism disposed at the other end of the frame.

[0005] The film material feeding mechanism includes a film material feeding feeder and a film peeling plate;

[0006] The film material suction mechanism includes an X-axis moving module, a Y-axis moving module, a Z-axis moving module, and a film suction assembly and a film application assembly fixed on the Z-axis moving module;

[0007] The film material positioning mechanism includes a first CCD camera and a second CCD camera located below the film material suction mechanism. The first CCD camera and the second CCD camera are fixed on the frame and are used to capture the diagonal position of the film material.

[0008] The glass positioning mechanism includes a glass positioning platform, a UVW alignment platform located below the glass positioning platform, and a third CCD camera and a fourth CCD camera located above the glass positioning platform; the UVW alignment platform is used to adjust the position of the glass positioning platform; the third CCD camera and the fourth CCD camera are fixed above the frame and are used to capture diagonal views of the glass.

[0009] The glass feeding mechanism includes BDS channels located on both sides of the frame and a glass picking assembly located on one side of the glass positioning mechanism.

[0010] Preferably, the glass positioning platform is provided with two glass fixing positions; a vacuum adsorption device is provided below each glass fixing position.

[0011] Preferably, the high-precision film application device further includes a transfer platform disposed on one side of the glass positioning mechanism.

[0012] Preferably, the film suction assembly includes a vacuum gauge and a film suction head; the film application assembly includes a cylinder, a rolling mechanism, and a rolling shaft.

[0013] Preferably, the frame includes multiple sets of high-precision film application devices arranged in sequence.

[0014] This invention offers the following advantages: The high-precision film-applying device provided by this invention includes a frame, a film feeding mechanism, a film suction mechanism, and a film positioning mechanism located at one end of the frame, and a glass feeding mechanism and a glass positioning mechanism located at the other end of the frame. The film feeding mechanism uses an automatic feeding feeder to peel off one sheet of film at a time. The film positioning mechanism uses two CCD cameras fixed on the frame to take diagonal photos of the film from below. The glass positioning mechanism uses two other cameras fixed on the frame to take diagonal photos of the glass from above. This invention changes the number of CCD cameras for the film and glass from one to two, and changes the shooting method from moving to fixed diagonal shooting, reducing the error introduced by the movement of the CCD cameras and improving the overall precision of the bonding device. Combined with a high-precision X / Y / Z axis moving module and a UVW alignment platform, it can achieve precision control within ±0.025 mm. Attached Figure Description

[0015] Figure 1-2 A three-dimensional structural diagram of the high-precision film-applying device provided in the embodiment of this utility model.

[0016] Figure 3 A top view of the high-precision film application device provided in an embodiment of this utility model.

[0017] Figure 4 A three-dimensional structural diagram of the film material suction mechanism and the film material positioning mechanism of the high-precision film application device provided in the embodiments of this utility model.

[0018] Figure 5 A three-dimensional structural diagram of the film suction assembly and film application assembly of the high-precision film application device provided in this embodiment of the utility model.

[0019] Figure 6 A three-dimensional structural diagram of the glass positioning mechanism of the high-precision film-applying device provided in this embodiment of the utility model.

[0020] In the attached diagram:

[0021] 100. Rack;

[0022] 200. Membrane material feeding mechanism; 210. Membrane material feeding feeder

[0023] 300. Film material suction mechanism; 310. X-axis moving module; 320. Y-axis moving module; 330. Z-axis moving module; 340. Film suction assembly; 341. Vacuum gauge; 342. Film suction head; 350. Film application assembly; 351. Cylinder; 352. Rolling mechanism; 353. Rolling shaft;

[0024] 400. Film material positioning mechanism; 410. First CCD camera; 420. Second CCD camera;

[0025] 500. Glass feeding mechanism; 510. Glass picking assembly;

[0026] 600. Glass positioning mechanism; 610. Glass positioning platform; 611. Glass fixing position; 620. UVW alignment platform; 621. U-axis moving module; 622. V-axis moving module; 623. W-axis moving module; 630. Third CCD camera; 640. Fourth CCD camera;

[0027] 700, transit platform. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] The high-precision screen protector device provided by this utility model is used for high-precision screen protector application on mobile phones, and is especially suitable for situations where the accuracy requirement of the screen protector application equipment is within 0.025 mm.

[0030] like Figure 1-6 As shown, this utility model embodiment provides a high-precision film application device, which includes a frame 100, a film material feeding mechanism 200, a film material suction mechanism 300, and a film material positioning mechanism 400 disposed at one end of the frame 100, and a glass feeding mechanism 500 and a glass positioning mechanism 600 disposed at the other end of the frame 100.

[0031] In this embodiment of the invention, the film material feeding mechanism 200 includes a film material feeding feeder 210 and a film peeling plate. The film material feeding feeder 210 automatically picks up the film material, which is fed in roll form, dispensing one sheet at a time. The film material is attached to the base film, with a gap between adjacent sheets. The film material is then peeled off from the base film by the film peeling plate.

[0032] The film suction mechanism 300 includes an X-axis moving module 310, a Y-axis moving module 320, a Z-axis moving module 330, and a film suction assembly 340 and a film application assembly 350 fixed on the Z-axis moving module 330.

[0033] like Figure 4 As shown in the embodiment of this utility model, the X-axis moving module 310 is fixed on the frame, the Y-axis moving module 320 is fixed on the X-axis moving module, the Z-axis moving module 330 is fixed on the Y-axis moving module 320, and the film suction assembly 340 and the film application assembly 350 are fixed on the Z-axis moving module 330. To maximize the accuracy of the device, the X / Y / Z-axis moving modules employ high-precision module mechanisms or robot motion mechanisms. In some embodiments of this utility model, the Z-axis moving module 330 includes a servo motor and a high-precision lead screw, achieving an accuracy of ±0.005 mm.

[0034] like Figure 5 As shown in the embodiment of this utility model, the film suction assembly 340 includes a vacuum gauge 341 and a film suction head 342, with the vacuum gauge 341 monitoring the adsorption status in real time. The film application assembly 350 includes a cylinder 351, a rolling mechanism 352, and a rolling shaft 353, with the rolling mechanism using a precision cylinder to achieve rolling, ensuring no bubbles, wrinkles, or other defects after film application. The fitting accuracy of the rolling shaft 353 needs to be improved to approximately 0.02 mm. The rolling mechanism 352 uses a high-precision pressure regulating cylinder and a precision pressure regulating valve to stably control the pressure and achieve accurate movement, with pressure control feedback during application. After the central control unit detects that the film material has been peeled off, the camera automatically identifies the angle and position of the film material and controls the X-axis moving module 310, Y-axis moving module 320, and Z-axis moving module 330 to move to the film material position for initial film suction.

[0035] like Figure 4 As shown in this embodiment of the invention, the film material positioning mechanism 400 includes a first CCD camera 410 and a second CCD camera 420 located below the film material suction mechanism 300. The first CCD camera 410 and the second CCD camera 420 are fixed on the frame 100 and are used to photograph the diagonal position of the film material. When photographing the film material, the first CCD camera 410 and the second CCD camera 420 are located below the film material to perform diagonal photography.

[0036] like Figure 3 As shown in the embodiment of this utility model, the glass feeding mechanism 500 includes BDS channels (not shown in the figure) disposed on both sides of the frame 100 and a glass picking assembly 510 disposed on one side of the glass positioning mechanism 600.

[0037] like Figure 6As shown in the embodiment of this utility model, the glass positioning mechanism 600 includes a glass positioning platform 610, a UVW alignment platform 620 located below the glass positioning platform 610, and a third CCD camera 630 and a fourth CCD camera 640 located above the glass positioning platform 600. The UVW alignment platform 620 is used to adjust the position of the glass positioning platform 610. The third CCD camera 630 and the fourth CCD camera 640 are fixed above the frame 100 and are used to photograph the diagonal position of the glass. In this embodiment of the utility model, the third CCD camera 630 and the fourth CCD camera 640 are located above the glass, adopt a partial light source shooting mode, automatically recognize the glass outline, and improve the clarity and accuracy of the photograph.

[0038] In actual production, a robotic arm places the glass onto the BDS channel, and then the glass picking component 510 is controlled to transport the glass to the glass positioning platform 610. When picking up the glass, a dust-free environment must be considered; the glass cannot be picked up flat and must be gripped. Dust removal is also crucial; a Plasma dust removal device could be added to treat any dust particles on the glass. In this embodiment, the UVW alignment platform 620 includes a U-axis moving module 621, a V-axis moving module 622, and a W-axis moving module 623, all of which are high-precision moving modules. The UVW alignment platform 620 automatically adjusts the position of the glass positioning platform 600 according to the position of the film material, thereby indirectly adjusting the glass position and achieving high-precision bonding. The UVW alignment platform 620 of this invention can achieve a movement accuracy of 0.005mm in all directions.

[0039] In this embodiment of the invention, the film is applied on a glass positioning platform 610. For example... Figure 6 As shown in this embodiment of the invention, the glass positioning platform 610 is provided with two glass fixing positions 611 to improve bonding efficiency; a vacuum adsorption device is provided below each glass fixing position 611. The glass picking assembly 510 transports the glass to the glass fixing position 611 on the glass positioning platform 610, and then the vacuum adsorption device can be activated to adsorb the glass onto the glass fixing position 611 to prevent the glass from sliding during the film application process, which could lead to poor bonding.

[0040] In existing bonding devices, the film and glass are typically each equipped with only one CCD camera for positioning. A moving module moves the camera to obtain images of multiple parts of the film and glass for precise positioning. In this embodiment, to improve the overall accuracy of the bonding device, two fixed-position CCD cameras are used for each of the film and glass, capturing a full view of both materials through diagonal shooting. This innovative camera setup, while ensuring accurate acquisition of the film and glass positions, avoids CCD camera movement errors, thus improving the bonding device's precision. The installation position of each CCD camera needs to be determined based on the dimensions of different glass and film types. The CCD cameras also need to consider factors such as compatibility with the central control software, accuracy, reliability, and stability.

[0041] like Figure 3 As shown in this embodiment of the invention, the high-precision film-applying device further includes a transfer platform disposed on one side of the glass positioning mechanism. The film-applied glass can be transferred to the transfer platform by the glass suction mechanism, and then unloaded from the transfer platform by a robotic arm.

[0042] Designing and implementing a high-efficiency automated production line requires consideration of various factors, including the physical dimensions of the equipment and production efficiency. The spatial layout needs to be optimized to ensure compactness without compromising operational convenience; simultaneously, the film application speed must be guaranteed to ensure sufficient output. Given these complex technical challenges, developing an automated film application line that can solve both space utilization and production efficiency issues while ensuring high precision is particularly difficult.

[0043] From an hourly production perspective, the lamination device design needs to consider the following two factors: First, the lamination stations must be separate and independent, not concentrated on a single platform. This is because if the lamination processes are simultaneous and close together, vibrations can affect the OK position of the CCD camera, thus impacting lamination accuracy. Therefore, in this embodiment, the frame needs to be reinforced or a heavy marble platform should be used to eliminate resonance. Second, the impact of abnormalities must be considered; if one unit fails, the other can continue operating. Therefore, if… Figures 1-3 As shown in the embodiment of this utility model, the frame 100 includes multiple sets of high-precision film-applying devices arranged sequentially as described above. By improving the frame structure, the layout of two adjacent sets of high-precision film-applying devices can be made compact, and two adjacent sets of high-precision film-applying devices can share a transfer platform to make full use of space and improve production efficiency. With the help of loading and unloading robots, fully automatic and efficient film-applying operations can be achieved.

[0044] The working process of the high-precision film application device provided by this utility model is as follows:

[0045] (1) Glass material arrival: The glass material picking component 510 picks up two pieces of glass at a time from the BDS channel and puts them into the glass positioning platform 610.

[0046] (2) The glass positioning platform 610 is vacuumed, and the glass is adsorbed onto the glass positioning platform 610. The glass positioning platform 610 and the UVW alignment platform 620 are moved below the third CCD camera 630 and the fourth CCD camera 640.

[0047] (3) The third CCD camera 630 and the fourth CCD camera 640 take diagonal pictures of the glass, and the central control unit calculates the position of the glass based on the shooting results.

[0048] (4) The membrane material feeder 210 peels off the membrane material through the peeling plate, and the membrane suction assembly 340 sucks up the membrane material.

[0049] (5) The X / Y / Z axis moving module transfers the film material above the first CCD camera 410 and the second CCD camera 420.

[0050] (6) The first CCD camera 410 and the second CCD camera 420 take diagonal pictures of the film material, and the central control unit calculates the position of the film material based on the shooting results.

[0051] (7) Move the film material directly above the glass using the X / Y axis moving module, keep the X / Y axis moving module of the film material stationary, adjust the position of the glass using the UVW alignment platform 620 to align the glass with the film material, and lower the Z axis moving module 330 to roll and bond the film material.

[0052] (8) After the film is applied, the glass with the film applied is transferred to the transfer platform 700, the film material suction mechanism 300 returns to the mold taking position, and the glass positioning platform 600 and the UVW alignment platform 610 return to the glass taking position.

[0053] (9) The unloading robot unloads the film-coated glass from the transfer platform 700.

[0054] This invention offers the following advantages: The high-precision film-applying device provided by this invention includes a frame, a film feeding mechanism, a film suction mechanism, and a film positioning mechanism located at one end of the frame, and a glass feeding mechanism and a glass positioning mechanism located at the other end of the frame. The film feeding mechanism uses an automatic feeding feeder to peel off one sheet of film at a time. The film positioning mechanism uses two CCD cameras fixed on the frame to take diagonal photos of the film from below. The glass positioning mechanism uses two other cameras fixed on the frame to take diagonal photos of the glass from above. This invention changes the number of CCD cameras for the film and glass from one to two, and changes the shooting method from moving to fixed diagonal shooting, reducing the error introduced by the movement of the CCD cameras and improving the overall precision of the bonding device. Combined with a high-precision X / Y / Z axis moving module and a UVW alignment platform, it can achieve precision control within ±0.025 mm. In addition, by reinforcing the frame or using a marble platform as the frame, and setting multiple sets of high-precision film application devices side by side on the frame, the space utilization is optimized. Combined with loading and unloading robots, fully automatic and efficient film application operations can be achieved.

[0055] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many modifications under the guidance of the present invention without departing from the spirit and scope of the claims. All of these modifications are within the protection scope of the present invention.

Claims

1. A high-precision film application device, characterized in that, The high-precision film pasting device comprises a rack (100), a film material feeding mechanism (200) arranged at one end of the rack (100), a film material suction mechanism (300), a film material positioning mechanism (400), and a glass feeding mechanism (500) and a glass positioning mechanism (600) arranged at the other end of the rack (100); The film material feeding mechanism (200) comprises a film material feeding head (210) and a film stripping plate; The film material suction mechanism (300) comprises an X-axis moving module (310), a Y-axis moving module (320), a Z-axis moving module (330), a film suction assembly (340) and a film pasting assembly (350) fixed on the Z-axis moving module (330); The film material positioning mechanism (400) comprises a first CCD camera (410) and a second CCD camera (420) arranged below the film material suction mechanism (300), wherein the first CCD camera (410) and the second CCD camera (420) are fixed on the rack (100) and used for shooting the diagonal position of the film material; The glass positioning mechanism (600) comprises a glass positioning platform (610), a UVW positioning platform (620) arranged below the glass positioning platform (610), and a third CCD camera (630) and a fourth CCD camera (640) arranged above the glass positioning platform (610), wherein the UVW positioning platform (620) is used for adjusting the position of the glass positioning platform (610), and the third CCD camera (630) and the fourth CCD camera (640) are fixed above the rack (100) and used for shooting the diagonal position of the glass; The glass feeding mechanism (500) comprises BDS channels arranged on both sides of the rack (100) and a glass taking assembly (510) arranged on one side of the glass positioning mechanism (600).

2. The high-precision film pasting device according to claim 1, characterized in that, The glass positioning platform (610) is provided with two glass fixing positions (611), and vacuum suction devices are arranged below the glass fixing positions (611).

3. The high-precision film pasting device according to claim 1, wherein The high-precision film pasting device further comprises a transfer platform (700) arranged on one side of the glass positioning mechanism (600).

4. The high-precision film pasting device according to claim 1, wherein The film suction assembly (340) comprises a vacuum table (341) and a film suction head (342), and the film pasting assembly (350) comprises a pneumatic cylinder (351), a rolling mechanism (352) and a rolling shaft (353).

5. The high-precision film pasting device according to claim 1, wherein The rack (100) comprises multiple sets of high-precision film pasting devices arranged in sequence.

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