Auxiliary supporting mechanism for overturning material taking

Abstract

The utility model discloses a turnover material-taking auxiliary supporting mechanism which comprises a swing shaft, the two ends of the swing shaft are respectively and rotatably supported on swing supports at the corresponding ends, a plurality of swing supporting arms extending outwards are further fixedly arranged on the swing shaft, and the extending ends of the swing supporting arms are located on the same plane. Buffering swing arms are fixedly installed at the two ends of the swing shaft and correspond to the buffers. The two ends of the pendulum shaft are further in transmission connection with pendulum shaft drivers. The two extending ends of the pendulum shaft are in transmission connection with the pendulum shaft drivers at the corresponding ends through couplings. Swing arm rollers are rotationally mounted at the outward extending ends of the swing supporting arms, and the swing arm rollers are located on the same plane. And an intermediate support is also rotationally supported on the pendulum shaft. The auxiliary supporting mechanism can effectively avoid flexural deflection of the mechanical arm and rotation damage of the glass substrate, and is particularly suitable for the overturning and attaching process of the ultrathin large-size glass substrate.

Description

Technical Field

[0001] This utility model relates to a manufacturing equipment for a liquid crystal flat panel display, and more particularly to a bonding and flipping machine for applying edge adhesive to the surface of a glass substrate and for the liquid crystal dispensing process in the manufacturing of a liquid crystal display. Specifically, it relates to an auxiliary support structure for a robotic arm of the bonding and flipping machine. Background Technology

[0002] Glass substrates are one of the key basic materials in liquid crystal displays (LCDs), and are extremely flat and ultra-thin glass. The performance and quality of the glass substrate itself are closely related to the basic indicators of flat panel displays such as resolution, imaging effect, thickness, and weight. The performance requirements for glass substrates are becoming increasingly stringent, especially in terms of surface defects.

[0003] Liquid crystal deposition (LCD) is a crucial stage in the manufacturing process of liquid crystal displays (LCDs). This stage involves applying boundary adhesive to the surfaces of two glass substrates and depositing the liquid crystal onto them. The substrates are then flipped so that the adhesive-coated and liquid crystal surfaces of the two substrates are aligned, followed by pressing and photocuring to complete the deposition process. Because the glass substrate is a large, ultra-thin sheet with a surface area of ​​up to 2500×3000mm and a thickness of only about 0.5mm, and its surface is divided into multiple adhesive-coated and liquid crystal deposition areas, a robotic arm is needed to move the substrate from the flipping equipment during the flipping process. The supporting fingers of these robotic arms are over 3000mm long, and their cantilever structure makes them prone to deflection and "sag" at the fingertips. This can cause the glass sheet to bend and break, leading to a decrease in the yield rate and an increase in manufacturing costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a flipping material picking auxiliary support mechanism that can avoid the bending and deformation of the robotic arm.

[0005] To solve the above-mentioned technical problems, the present invention provides a tilting and material-retrieving auxiliary support mechanism, which includes a swing shaft. The two ends of the swing shaft are rotatably supported on corresponding swing supports. Several outward swing support arms are also fixedly installed on the swing shaft, and the outward ends of each swing support arm are located on the same plane. Buffer swing arms are fixedly installed at both ends of the swing shaft, and the buffer swing arms correspond to the buffers. Swing shaft drivers are also connected to both ends of the swing shaft.

[0006] Furthermore, both extended ends of the swing shaft are connected to the corresponding swing shaft driver via couplings.

[0007] Furthermore, the extended end of the swing support arm is rotatably mounted with a swing arm roller, and each swing arm roller is located on the same plane.

[0008] Furthermore, the swing shaft is also rotatably supported by an intermediate support.

[0009] Furthermore, the swing shaft driver is a swing cylinder, the buffer is a pneumatic buffer cylinder, and the coupling is a gear coupling.

[0010] In the above structure, a material handling auxiliary support structure is adopted. When the robotic arm is supporting the glass substrate, this auxiliary support can transform the cantilever beam structure of the robotic arm into a simply supported beam structure, changing the stress state of the robotic arm and avoiding deflection and "sag" deformation, thus ensuring the smooth and reliable transfer of the glass substrate. A swing shaft driver is connected to both ends of the swing shaft, ensuring the synchronous swing accuracy of each swinging support arm on the swing shaft, improving the smooth and reliable support of the glass substrate. Corresponding buffer swing arms and buffers are also fixedly installed at both ends of the swing shaft, ensuring that the swinging support arms can smoothly contact the glass substrate, avoiding contact impact and vibration to prevent damage to the glass substrate. The swing shaft is mounted to the frame at both ends via swing supports, rather than being directly connected to the swing shaft driver, effectively improving the movement accuracy of the swing shaft. These structures are highly advantageous for the transfer of large-size, ultra-thin glass substrates. Attached Figure Description

[0011] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the tilting and material-retrieving auxiliary support mechanism of this utility model.

[0012] Figure 1 This is a diagram showing the working state of the tilting and material-retrieving auxiliary support mechanism of this utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of a specific embodiment of the flipping and material-retrieving auxiliary support mechanism of this utility model;

[0014] Figure 3 yes Figure 2 The diagram shows the three-dimensional structure of the device when it is out of working order.

[0015] Figure 4 yes Figure 3 A diagram of the driving structure at the end of the pendulum shaft in the structure.

[0016] In the figure, 1—swing shaft driver, 2—swing shaft, 3—driver support, 4—swing shaft support, 5—support base plate, 6—intermediate support, 7—swing support arm, 8—swing arm roller, 9—buffer swing arm, 10—buffer, 11—coupling, 12—mechanical arm. Detailed Implementation

[0017] like Figure 1 As shown, the glass substrate is transferred and supported by a robotic arm 12. Since the glass substrate is an ultra-thin, large-sized glass sheet, the length of the fingers of the robotic arm 12 is greater than 3m. Such long fingers form a cantilever beam structure when picking up the material, inevitably causing "sag" and bending deformation. Especially when the glass substrate adsorbed on the glass plate flipping device is released and transferred to the robotic arm 12, the sudden change in force on the robotic arm 12 causes the finger tips of the robotic arm to droop, which can easily cause damage to the glass substrate and reduce the yield of glass substrates. However, by installing the structure of this utility model at the finger tips of the robotic arm 12, this phenomenon can be effectively avoided.

[0018] like Figure 2 , Figure 3 and Figure 4 The tilting and material-retrieving auxiliary support mechanism shown includes a swing shaft 2. Both ends of the swing shaft 2 are rotatably supported on corresponding swing shaft supports 4. The two swing shaft supports 4 are fixedly mounted on the tilting machine via support base plates 5. This structure helps maintain the smooth rotation of the swing shaft 2, unaffected by the drive device. Eight swing support arms 7 are fixedly mounted on the swing shaft 2; the specific number of swing support arms 7 should be determined according to the size of the glass substrate. Swing arm rollers 8 are rotatably supported at the extended ends of the swing support arms 7, and all swing arm rollers 8 are on the same plane. An intermediate support 6 is also rotatably supported on the swing shaft 2. This structure effectively ensures the coaxiality and stability of the swing shaft 2.

[0019] A buffer swing arm 9 is fixedly installed on the inner side of the swing shaft support 4 at both ends of the swing shaft 2. Each buffer swing arm 9 corresponds to a buffer 10. The buffer 10 and the swing shaft support 4 are both fixedly installed on the support base plate 5, which is fixedly installed on the tilting machine. The buffer 10 is a pneumatic buffer. When the swing shaft 2 and the swing support arm 7 on it swing toward the support position, the buffer swing arm 9 gradually approaches and contacts the buffer 10 to play a buffering and vibration damping role.

[0020] A swing shaft driver 1 is also provided at both ends of the swing shaft 2. The swing shaft driver 1 is fixedly installed on the corresponding driver support 3, and the driver support 3 is installed on the support base plate 5. The swing shaft driver 1 is a swing cylinder. The output shaft of the swing cylinder is connected to the corresponding end of the swing shaft 2 through a coupling 11. The coupling 11 is a gear coupling. The gear coupling not only has a strong torque transmission capacity, but also can make the two shafts produce phase displacement, thereby avoiding the influence of the driver on the swing stability of the swing shaft.

[0021] Figure 2 When the swing support arm 7 swings to the horizontal position, the flipping and material-picking auxiliary support mechanism of this utility model is in the working position. Figure 3When the swing support arm 7 swings to the drooping state, the flipping material picking auxiliary support mechanism of this utility model is in a waiting-to-work state.

[0022] The above are only some preferred embodiments of this utility model, but this utility model is not limited thereto, and many improvements and modifications can be made. Any improvements and modifications made based on the basic principles of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A tilting and material-retrieving auxiliary support mechanism, characterized in that: The device includes a swing shaft (2), with both ends of the swing shaft (2) rotatably supported on corresponding swing supports (4). Several outward swing support arms (7) are also fixedly installed on the swing shaft (2), with the outward ends of each swing support arm (7) located on the same plane. Buffer swing arms (9) are fixedly installed at both ends of the swing shaft (2), and the buffer swing arms (9) correspond to the buffer (10). Swing shaft drivers (1) are also connected to both ends of the swing shaft (2).

2. The tilting and material-retrieving auxiliary support mechanism according to claim 1, characterized in that: Both extended ends of the swing shaft (2) are connected to the corresponding swing shaft driver (1) via a coupling (11).

3. The tilting and material-retrieving auxiliary support mechanism according to claim 1, characterized in that: The extended end of the swing support arm (7) is rotatably mounted with a swing arm roller (8), and each swing arm roller (8) is located on the same plane.

4. The tilting and material-retrieving auxiliary support mechanism according to claim 1, characterized in that: The swing shaft (2) is also rotatably supported by an intermediate support (6).

5. The tilting and material-retrieving auxiliary support mechanism according to claim 1, 2, 3 or 4, characterized in that: The swing shaft driver (1) is a swing cylinder, and the buffer (10) is a pneumatic buffer cylinder.

6. The tilting and material-retrieving auxiliary support mechanism according to claim 2, characterized in that: The coupling (11) is a gear coupling.

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