Glass substrate attaching and overturning device

Abstract

The utility model discloses a glass substrate laminating and overturning device, which is characterized in that overturning brackets are arranged on two side surfaces of a glass plate overturning frame through corresponding alignment platforms, a plurality of glass plate sucking disc supporting rods are arranged on the outer side of each overturning bracket, and a plurality of glass plate sucking discs which are communicated with one another are arranged on the glass plate sucking disc supporting rods; at least three alignment sensors are arranged on each side face of the overturning frame, and the positions of the alignment sensors correspond to the supporting planes formed by the corresponding glass plate suction cups. Air nozzles are installed at the two ends of the glass plate suction cup supporting rod, a negative pressure hole channel is further formed in the glass plate suction cup supporting rod, the two air nozzles are communicated through the negative pressure hole channel, and the negative pressure hole channel is communicated with the glass plate suction cups. The alignment platform is a UVW alignment platform; a turnover angle sensor is installed at the shaft end of the turnover fulcrum shaft, and a position correcting sensor is further installed on the turnover frame. The turnover device can realize stable turnover and accurate alignment of the glass substrate, and is particularly suitable for a laminating turnover machine for the glass substrate of a liquid crystal display.

Description

Technical Field

[0001] The utility model relates to a manufacturing device for a liquid crystal flat panel display, in particular to a turning mechanism for coating frame glue on the surface of a glass substrate in the process of manufacturing the liquid crystal display and for turning the glass substrate in the process of liquid crystal dripping. Background Art

[0002] A liquid crystal display (LCD) is a device that fills a liquid crystal medium between two glass substrates and adds a polarization layer of a certain shape. When voltage is applied to the liquid crystal medium through a conductive grid, the liquid crystal medium acts as an optical switch, thereby forming a certain image.

[0003] Liquid crystal dispensing for liquid crystal displays (LCDs) is a critical manufacturing process. This involves applying adhesive to the surfaces of two glass substrates, dispensing liquid crystal, and then flipping the glass substrates so that the adhesive-coated and liquid crystal surfaces align. Lamination and light curing complete the dispensing process. Because glass substrates are large, ultra-thin sheets of glass—a single glass substrate can measure up to 2500×3000mm and be only approximately 0.5mm thick—the surface of the glass substrate is divided into multiple adhesive and liquid crystal dispensing areas. Therefore, manufacturing requires not only reliable support and adsorption of the glass substrates, smooth transfer and flipping, but also precise and efficient bonding of the two glass substrates. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a glass substrate laminating and flipping device which can realize smooth flipping and precise alignment of the glass substrate.

[0005] In order to solve the above technical problems, the glass substrate laminating and flipping device of the present invention includes a glass plate flipping frame, and flipping brackets are installed on both sides of the glass plate flipping frame through corresponding alignment platforms. A plurality of glass plate suction cup supporting rods are installed on the outer side of each of the flipping brackets, and a plurality of interconnected glass plate suction cups are installed on each glass plate suction cup supporting rod; at least three alignment sensors are provided on each side of the flipping frame, and the positions of the alignment sensors correspond to the supporting planes formed by the corresponding glass plate suction cups.

[0006] Preferably, both ends of the glass plate suction cup supporting rod are equipped with air nozzles, and the glass plate suction cup supporting rod is also provided with a negative pressure channel, the two air nozzles are connected through the negative pressure channel, and the negative pressure channel is connected to each glass plate suction cup.

[0007] Preferably, a flip motor and a flip support shaft are respectively provided on two opposite sides of the flip frame, and the rotation axes of the flip motor and the flip support shaft are located on the same straight line.

[0008] Preferably, the alignment platform is a UVW alignment platform; a flip angle sensor is installed on the shaft end of the flip support shaft, and a positive position sensor is also installed on the flip frame.

[0009] Preferably, the alignment sensor and the flip angle sensor are proximity sensors, and the alignment sensor is a contact sensor.

[0010] Preferably, the glass plate suction cup supporting rods mounted on the flip bracket are arranged parallel to each other, and the glass plate suction cups are vacuum glass suction cups.

[0011] Preferably, the flip bracket adopts a rod-type frame structure, and three alignment sensors are installed on the same side of the flip frame. The three alignment sensors are located at the three vertices of a triangle.

[0012] In the above structure, since the flip frame is mounted with a flip bracket via an alignment platform, the flip frame supporting the glass substrate flips around the frame axis. This axis-around-the-axis flipping structure ensures smooth flipping of large, thin glass substrates, operates smoothly, and has high sensitivity, which not only improves the flipping efficiency of the glass substrate but also effectively prevents damage to the glass substrate during flipping. A plurality of interconnected glass plate suction cups are mounted on the flip bracket via glass plate suction cup support rods. The glass plate suction cups can generate a strong suction force through vacuum, and the plurality of interconnected glass plate suction cups ensure consistent suction force at different positions on the glass plate surface, ensuring safe adsorption of the glass substrate. Furthermore, the system also has the function of remotely controlling adsorption and release. Furthermore, due to the use of an alignment sensor and a coordinated alignment platform, the position of the glass substrate can be accurately positioned, providing conditions for accurate bonding of the two glass substrates and effectively improving the bonding accuracy of the glass substrates. Furthermore, the coordinated operation of the alignment sensor and the alignment platform further improves the degree of automation and efficiency of glass substrate alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The glass substrate laminating and flipping device of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the glass substrate laminating and flipping device of the present invention;

[0015] Figure 2 yes Figure 1 a front view of the structure shown;

[0016] Figure 3 yes Figure 2 Left view of;

[0017] Figure 4 yes Figure 1 A three-dimensional structural diagram of the flip frame in the structure shown;

[0018] Figure 5 yes Figure 1 The installation structure diagram of the alignment sensor in the structure shown;

[0019] Figure 6 yes Figure 1 Installation diagram of the flip bracket and glass plate suction cup in the structure shown;

[0020] Figure 7 yes Figure 6 Installation structure diagram of the middle flip bracket and glass plate suction cup unit;

[0021] Figure 8 yes Figure 7 sectional view.

[0022] In the figure, 1 is the flip frame, 2 is the sensor column, 3 is the alignment sensor, 4 is the flip bracket, 5 is the glass plate suction cup support rod, 6 is the glass plate suction cup, 7 is the alignment platform, 8 is the flip support seat, 9 is the flip motor support seat, 10 is the flip motor, 11 is the flip support shaft, 12 is the flip angle sensor, 13 is the positive position sensor, 14 is the negative pressure channel, and 15 is the air nozzle. DETAILED DESCRIPTION

[0023] like Figure 1 、 Figure 2 and Figure 3 The glass substrate bonding and flipping device shown in the figure includes a flip frame 1 that can be flipped 180° around a flip axis. Alignment platforms 7 are symmetrically installed on both sides of the flip frame 1. The alignment platform 7 is a UVW alignment platform. The UVW alignment platform includes three power axes and can achieve alignment by controlling the movement of the X and Y axes and the rotation of the θ axis.

[0024] A flip bracket 4 is mounted on the outside of each alignment platform 7. Parallel glass plate suction cup support rods 5 are fixedly mounted on the flip bracket 4. These support rods 5 are equipped with glass plate suction cups 6 for attaching and releasing the glass substrate. Three alignment sensors 3 are fixedly mounted on both sides of the flip frame 1. The sensors 3 are positioned to correspond to the glass substrate support planes formed by the corresponding glass plate suction cups 6, allowing them to detect the edge positions of the glass substrates. Therefore, the glass substrate laminating and flipping device employs a symmetrical structure.

[0025] like Figure 3 、 Figure 4As shown, the flip frame 1 is a rectangular frame fixed with aluminum profiles, with a flip motor 10 and a flip support shaft 11 installed on two opposite sides of the rectangular frame. The output shaft of the flip motor 10 is connected to one side of the flip frame 1, and the flip support shaft 11 with a short axis structure is installed on the other side of the flip frame 1; the axis centerline of the output shaft of the flip motor 10 and the axis centerline of the flip support shaft 11 are located on the same straight line. The flip motor 10 is installed on the frame of the flip machine through the flip motor support base 9, and the flip support shaft 11 is rotatably installed on the flip support base 8, and the flip support base 8 is fixedly installed on the frame of the flip machine. The flip motor 10 adopts a servo motor or a stepper motor.

[0026] A tilt angle sensor 12 is mounted on the extended end of the tilt support shaft 11. This sensor senses and detects the swing angle of the tilt frame 1. A position sensor 13 is also mounted on a side beam of the tilt frame 1. This sensor senses and monitors whether the tilt frame 1 has been tilted to its operating position. The tilt angle sensor 12 utilizes a proximity sensor such as a Hall effect sensor or a capacitive sensor, while the position sensor 13 utilizes a contact sensor such as a travel switch.

[0027] like Figure 5 As shown, the alignment sensor 3 is a photoelectric sensor. Two components of the photoelectric sensor are mounted on the sensor column 2. These two components are located on either side of the plane defined by the glass plate suction cup 6 to sense the edge position of the glass substrate on the glass plate suction cup 6. The sensor column 2 is mounted on the frame beam of the flip frame 1 via an adjustable mounting base.

[0028] like Figure 6 As shown, the tilting bracket 4 also has a rod-type frame structure. Nine parallel and equidistant glass plate suction cup support rods 5 are fixed to the tilting bracket 4 via vertical rods. The length and number of the glass plate suction cup support rods 5 are determined according to the size of the supported glass substrate. Eleven glass plate suction cups 6 are mounted on each glass plate suction cup support rod 5. The suction openings of the glass plate suction cups 6 on each glass plate suction cup support rod 5 are aligned horizontally to ensure balanced and stable support of the glass substrate.

[0029] like Figure 7 、 Figure 8As shown, air nozzles 15 are installed at both ends of the glass plate suction cup supporting rod 5. A negative pressure channel 14 is provided on the rod body of the glass plate suction cup supporting rod 5 along the length of the rod. The two air nozzles 15 are connected through the negative pressure channel 14. Each glass plate suction cup 6 on the glass plate suction cup supporting rod 5 is connected to the negative pressure channel 14. The two ends of the negative pressure channel 14 are connected to the air nozzles 15 at the corresponding ends. The air nozzles 15 are connected to the negative pressure air source. The air nozzles 15 are installed at both ends of the glass plate suction cup supporting rod 5. This structure of adsorption from both ends is conducive to ensuring the balance of negative pressure of the glass plate suction cup 6 on the glass plate suction cup supporting rod 5. The glass plate suction cup 6 adopts a vacuum glass suction cup, which is conducive to generating a strong and stable adsorption force to ensure the safe adsorption of the glass.

[0030] The above only lists some preferred embodiments of the present invention, but the present invention is not limited thereto and many improvements and modifications can be made. As long as the improvements and modifications are made based on the basic principles of the present invention, they should be considered to fall within the scope of protection of the present invention.

Claims

1. A glass substrate laminating and flipping device, characterized by: The invention comprises a turning frame (1), wherein turning brackets (4) are installed on both sides of the turning frame (1) via corresponding alignment platforms (7), and a plurality of glass plate suction cup supporting rods (5) are installed on the outside of each turning bracket (4), and a plurality of glass plate suction cups (6) connected to each other are installed on each glass plate suction cup supporting rod (5); at least three alignment sensors (3) are provided on each side of the turning frame (1), and the positions of the alignment sensors (3) correspond to the supporting planes formed by the corresponding glass plate suction cups (6).

2. The glass substrate laminating and flipping device according to claim 1, wherein: Air nozzles (15) are installed at both ends of the glass plate suction cup supporting rod (5), and a negative pressure channel (14) is also provided on the glass plate suction cup supporting rod (5). The two air nozzles (15) are connected through the negative pressure channel (14), and the negative pressure channel (14) is connected to each glass plate suction cup (6).

3. The glass substrate laminating and flipping device according to claim 1 or 2, wherein: A turning motor (10) and a turning support shaft (11) are respectively provided on two opposite sides of the turning frame (1), and the rotation axes of the turning motor (10) and the turning support shaft (11) are located on the same straight line.

4. The glass substrate laminating and flipping device according to claim 3, wherein: The alignment platform (7) is a UVW alignment platform; a flip angle sensor (12) is installed on the shaft end of the flip support shaft (11), and a positive position sensor (13) is also installed on the flip frame (1).

5. The glass substrate laminating and flipping device according to claim 4, wherein: The alignment sensor (3) and the flip angle sensor (12) are proximity sensors, and the alignment sensor (13) is a contact sensor.

6. The glass substrate laminating and flipping device according to claim 1, wherein: The glass plate suction cup supporting rods (5) mounted on the flip bracket (4) are arranged parallel to each other, and the glass plate suction cup (6) is a vacuum glass suction cup.

7. The glass substrate laminating and flipping device according to claim 1, wherein: The flip bracket (4) adopts a rod-type frame structure, and three alignment sensors (3) are installed on the same side of the flip frame (1), and the three alignment sensors (3) are located at the three vertices of a triangle.

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