Stable conveying device of TFT (Thin Film Transistor) glass inspection machine

Abstract

The utility model discloses a stable conveying device of a TFT (Thin Film Transistor) glass inspection machine. The stable conveying device comprises a clamping device and a stabilizing device, the glass is clamped by the clamping device through a clamping bracket and a clamping block, so that the stability of the glass in the conveying process is ensured; the stabilizing device is integrated with an air draft device, a vertically-arranged belt and an air knife, the belt is used for supporting and conveying the other end of the glass, the air knife and the belt are oppositely arranged, one end of the glass is clamped by the clamping device, the other end of the glass is tightly attached to the belt for stable conveying, and it is guaranteed that the glass is kept stable and free of shaking in the whole inspection process; therefore, the requirement of high-precision inspection is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of TFT glass manufacturing, and relates to a stable conveying device for a TFT glass inspection machine. Background Art

[0002] In the precise process of TFT (Thin Film Transistor) glass production and manufacturing, the quality stability of glass substrates is one of the key factors to ensure the quality of the final products. TFT glass is widely used in high-tech products such as liquid crystal displays and touch screens, and its surface flatness, internal stress distribution, and dimensional accuracy need to reach extremely high standards. Therefore, in the production process, it is particularly important to conduct strict state inspections on glass substrates.

[0003] Currently, as a key device on the TFT glass production line, the inspection machine is responsible for real-time monitoring of various key indicators of the glass, including but not limited to size, defects, flatness, etc. However, the accuracy and reliability of the inspection machine highly depend on the stability of its operating environment, especially the control of environmental temperature and the accuracy of the conveying system. Fluctuations in environmental temperature will directly affect the optical performance of the inspection equipment and the stability of electronic components, while slight vibrations of the conveyor belt may cause position offsets or vibrations of the glass substrate, thereby resulting in the so-called "overflow phenomenon". This phenomenon not only reduces the detection accuracy but may also mislead subsequent production decisions, having an adverse impact on the overall production efficiency and product yield.

[0004] In response to the stability problems that occur during the process of the conveyor belt transporting glass, the existing technologies mainly adopt a lifting mechanism to attempt to solve the problem. Specifically, the glass substrate is gently lifted by a mechanical lifting device so that its bottom tightly adheres to the surface of the conveyor belt, in order to reduce the vibrations caused by gaps or unevenness. Although this method improves the initial stability of the glass to a certain extent, it is difficult to completely eliminate the vibrations of the glass caused by the structure of the conveyor belt itself, speed changes, or external interference. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the technical problem of the shaking of the glass when passing through the inspection machine, and to provide a stable conveying device for a TFT glass inspection machine.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a stable conveying device for a TFT glass inspection machine, including: a clamping device and a stabilizing device;

[0008] The clamping device includes a clamping bracket and a clamping block; the clamping block is arranged at the lower part of the clamping bracket, and the clamping bracket clamps the glass through the clamping block;

[0009] The stabilizing device includes an exhaust device, a belt and an air knife; a belt is provided at the bottom of the exhaust device, and the belt is provided in a vertical direction; the air knife is provided facing the belt;

[0010] One end of the glass is clamped by a clamping device, and the side surface of the other end is closely attached to the belt for transmission.

[0011] Furthermore, the exhaust device is a hollow rectangular parallelepiped structure, and a slit device is provided at the bottom of the exhaust device.

[0012] Furthermore, the exhaust device is provided with an exhaust pipe, and the exhaust pipe is connected to the exhaust device.

[0013] Furthermore, the slit device is a filter structure.

[0014] Furthermore, the exhaust device is a segmented structure.

[0015] Furthermore, the exhaust device includes a front exhaust device, a middle exhaust device and a rear exhaust device; the front exhaust device, the middle exhaust device and the rear exhaust device are isolated by a baffle.

[0016] Furthermore, both ends of the side wall of the exhaust device along the belt conveying direction are provided with chamfers.

[0017] Furthermore, both ends of the side wall of the belt along the belt transmission direction are provided with chamfers.

[0018] Furthermore, both ends of the side wall of the wind knife along the belt conveying direction are provided with chamfers.

[0019] Furthermore, the chamfer angles of the exhaust device, belt and air knife are 30-45°.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model discloses a stable conveying device for a TFT glass inspection machine. The clamping device utilizes a combination of a clamping bracket and a clamping block, enabling the clamping block to securely clamp the glass, effectively preventing it from sliding or falling during conveyance and ensuring stable conveyance. The exhaust device and air knife within the stabilizing device absorb the glass onto the belt, stabilizing the glass and reducing its wobbling while the inspection machine checks its condition, thereby improving inspection efficiency and minimizing production line losses.

[0022] Furthermore, the exhaust device adopts a hollow cuboid structure. This design provides sufficient internal space for the device, which is conducive to forming a strong negative pressure area, thereby improving the exhaust efficiency. The bottom of the exhaust device is provided with a slit device. This design makes the exhaust more uniform, can effectively suck the dust and impurities on the glass surface into the device interior, and avoids problems caused by too strong or too weak local exhaust. It improves the stability of glass transmission.

[0023] Furthermore, the slit device of the filter structure can effectively filter out the dust, impurities and possible tiny particles on the glass surface, ensuring that only clean air passes through during the exhaust process, preventing the pollution of the exhaust device and subsequent inspection equipment by dust and impurities. It avoids the risk of device blockage, ensures the continuity and stability of the exhaust effect. It reduces the inspection delay caused by the interference of dust or impurities and improves the overall work efficiency.

[0024] Furthermore, the exhaust device adopts a segmented structure. The segmented exhaust device can adjust the exhaust intensity and method according to the characteristics of different conveying stages, so as to better adapt to the actual situation. The design of the segmented exhaust device makes each part relatively independent, facilitating separate maintenance and management. When a problem occurs in a certain section of the exhaust device, it can be quickly located and repaired, reducing the maintenance cost and difficulty. The middle section adopts a baffle design, which may not only play a role in regulating the air flow, but also enhance the structural stability of the entire exhaust device, preventing the device from shaking or being damaged due to too large or too small air flow.

[0025] Furthermore, the design of the included angle helps the glass to transition more smoothly when entering the stabilizing device, reducing the impact and vibration caused by sudden changes, thereby improving the stability of the glass during the entire conveying process. This is particularly important for TFT glass, a material with high precision and high requirements, and can avoid scratches or breakages caused by unstable conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of the stable conveying device of the TFT glass inspection machine of the present invention;

[0028] Figure 2 It is a three-dimensional diagram of the stable conveying device of the TFT glass inspection machine of the present invention;

[0029] Figure 3 The bottom view of the stable conveying device of the TFT glass inspection machine of the present utility model;

[0030] Figure 4 The top view of the stable conveying device of the TFT glass inspection machine of the present utility model.

[0031] Where: 1 - clamping device; 1.1 - clamping bracket; 1.2 - clamping block; 2 - glass; 3 - stabilizing device; 3.1 - air extraction device; 3.2 - belt; 3.3 - air knife. Specific embodiments

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Components of the embodiments of the present utility model described and marked in the accompanying drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0034] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0036] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0037] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "set", "install", "connect", "connection" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] The following further describes the present utility model in detail with reference to the accompanying drawings:

[0039] See Figure 1 , the present invention discloses a stable conveying device for a TFT glass inspection machine, including a clamping device 1, glass 2, and a stabilizing device 3. One end of the glass 2 is clamped by the clamping device 1, and the other end is conveyed along with the stabilizing device 3.

[0040] See Figure 2 , the clamping device 1 includes a clamping bracket 1.1 and a clamping block 1.2; the clamping block 1.2 is arranged at the lower part of the clamping bracket 1.1, and the clamping bracket 1.1 clamps the glass 2 through the clamping block 1.2.

[0041] See Figure 2-3 , the stabilizing device (3) includes an air extraction device (3.1), a belt (3.2), and an air knife (3.3); the belt (3.2) is arranged at the bottom of the air extraction device (3.1), and the belt of the belt (3.2) is arranged in the vertical direction; the air knife (3.3) is arranged facing the belt (3.2).

[0042] One end of the glass 2 is clamped by the clamping device 1, and the side of the other end is closely attached to the belt 3.2 for conveyance.

[0043] The air extraction device 3.1 provides air extraction, and the belt 3.2 is used for belt conveyance; the air extraction device 3.1 and the belt 3.2 are integrally arranged to provide a stable adsorption and traction effect when the glass 2 passes through the stabilizing device 3. The pressure of the air extraction device 3.1 can be adjusted within -0 to -100 kPa. The air extraction device 3.1 includes a slit device, an air extraction pipeline, and an air extraction device; the slit device is mainly made of rectangular stainless steel that is corrosion-resistant and high-temperature-resistant, the air extraction pipeline is mainly made of cylindrical stainless steel pipes, the outer shell of the adsorption device is made of stainless steel, and there is an electrical circuit board inside to receive and send signals and perform the functions of the opening and closing device. The slit device is below the air extraction device and has a certain distance from the belt. The slit device is mainly to ensure the smooth operation and ventilation of the air extraction device; the slit device is a layer of filter screen at the bottom of the air extraction device.

[0044] The air extraction device 3.1 adopts a hollow cuboid structure. This design ensures sufficient internal space in the device, facilitating the formation of a strong negative pressure area, thereby improving the air extraction efficiency. The bottom of the air extraction device is equipped with a slit device, which makes the air extraction more uniform. It can effectively suck the dust and impurities on the glass surface into the device, avoiding problems caused by too strong or too weak local air extraction, and improving the stability of glass transmission.

[0045] The width of the slit device of the air extraction device 3.1 can be designed within 1 - 5 mm according to product quality. The air extraction device 3.1 is a segmented air extraction device, which includes a front-segment air extraction device, a middle-segment air extraction device, and a rear-segment air extraction device. The front-segment air extraction device is arranged at the entrance section of the stabilizing device 3, and the front-segment air extraction device, the middle-segment air extraction device, and the rear-segment air extraction device are connected in sequence. The front-segment air extraction device, the middle-segment air extraction device, and the rear-segment air extraction device are isolated by baffles. The baffles are made of stainless steel. The air extraction device 3.1 is connected with an air extraction pipeline, which is arranged on one side close to the baffle. One end of the air extraction pipeline is connected to the air extraction device, and the other end is connected to the control system.

[0046] The size of each segment of the air extraction device 3.1 should be greater than 20 mm, and the air extraction segmented part runs following the rotation of the belt.

[0047] The entrance section of the stabilizing device 3 has an inclination angle, and there are angles between the entrance sections of the air extraction device 3.1, the belt 3.2, and the air knife 3.3 and the vertical plane. The angles between the entrance sections of the air extraction device 3.1 and the belt 3.2 and the vertical plane are the same. The inclination angles of the inclined surfaces of the entrance sections of the air extraction device 3.1, the belt 3.2, and the air knife 3.3 are 30 - 45°.

[0048] To ensure that there is no risk of breakage when the glass 2 enters the stabilizing device 3, the air extraction device 3.1, the belt 3.2, and the air knife 3.3 all have inclined surfaces of 30 - 45° at the entrance. The air knife 3.3 provides blowing to ensure that at the entrance, the glass 2 can first contact the belt 3.2, and then the air extraction device 3.1 provides an adsorption effect to complete one operation.

[0049] The working process / working principle of the present utility model is as follows:

[0050] See Figure 4 , when the glass 2 is about to enter this station, the belt 3.2 and the air knife 3.3 are started first, and then the air extraction function can be started when the glass 2 starts to closely adhere to the belt 3.2. The speeds of the belt 3.2, the glass 2, and the clamping device 1 are all the same.

[0051] To ensure that there is no risk of breakage when the above-mentioned glass 2 enters the stabilizing device 3, the air extraction device 3.1, the belt 3.2, and the air knife 3.3 are all inclined planes with an angle of 30-45° at the entrance of the glass 2. The air knife 3.3 provides blowing to ensure that when the glass 2 enters the entrance, the glass 2 can first contact the belt 3.1, and then the air extraction device 3.2 provides an adsorption effect to complete one operation.

[0052] When the glass 2 is about to enter the stabilizing device 3, the belt 3.2 and the air knife 3.3 are preferably turned on first, and then the air extraction function can be turned on when the glass 2 starts to closely adhere to the belt 3.2.

[0053] The utility model adsorbs the glass on the conveyor belt, stabilizes the glass to reduce the amount of shaking when the inspection machine inspects the glass state, improves the inspection efficiency of the inspection machine, and reduces the losses of the production line.

[0054] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. For those skilled in the art, the utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A stable conveying device for a TFT glass inspection machine, characterized in that: include: A clamping device (1) and a stabilizing device (3); The clamping device (1) comprises a clamping bracket (1.1) and a clamping block (1.2); the clamping block (1.2) is arranged at the lower part of the clamping bracket (1.1), and the clamping bracket (1.1) clamps the glass (2) via the clamping block (1.2); The stabilizing device (3) comprises an exhaust device (3.1), a belt (3.2) and an air knife (3.3); a belt (3.2) is provided at the bottom of the exhaust device (3.1), and the belt (3.2) is arranged in a vertical direction; the air knife (3.3) is arranged facing the belt (3.2); One end of the glass (2) is clamped by a clamping device (1), and the side surface of the other end is closely attached to a belt (3.2) for transmission.

2. The stable conveying device of the TFT glass inspection machine according to claim 1, characterized in that: The exhaust device (3.1) is a hollow rectangular parallelepiped structure, and a slit device is provided at the bottom of the exhaust device (3.1).

3. The stable conveying device of the TFT glass inspection machine according to claim 2, characterized in that: The exhaust device (3.1) is provided with an exhaust pipe, and the exhaust pipe is connected to the exhaust device.

4. The stable conveying device of the TFT glass inspection machine according to claim 2, characterized in that: The slit device is a filter structure.

5. The stable conveying device of the TFT glass inspection machine according to claim 1, characterized in that: The exhaust device (3.1) is a segmented structure.

6. The stable conveying device of the TFT glass inspection machine according to claim 5, characterized in that: The exhaust device (3.1) comprises a front exhaust device, a middle exhaust device and a rear exhaust device; the front exhaust device, the middle exhaust device and the rear exhaust device are isolated by a baffle.

7. The stable conveying device of the TFT glass inspection machine according to claim 1, characterized in that: Both ends of the side wall of the air exhaust device (3.1) along the belt conveying direction are provided with chamfers.

8. The stable conveying device of the TFT glass inspection machine according to claim 1, characterized in that: Both ends of the side wall of the belt (3.2) along the belt transmission direction are provided with chamfers.

9. The stable conveying device of the TFT glass inspection machine according to claim 1, characterized in that: Both ends of the side wall of the wind knife (3.3) along the belt conveying direction are provided with chamfers.

10. The stable conveying device of the TFT glass inspection machine according to any one of claims 7 to 9, characterized in that: The chamfer angles of the exhaust device (3.1), the belt (3.2) and the wind knife (3.3) are 30-45°.

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