TFT liquid crystal glass defect positioning device

Abstract

The utility model discloses a TFT (Thin Film Transistor) liquid crystal glass defect positioning device and belongs to the technical field of TFT liquid crystal glass manufacturing. The defect positioning device comprises a positioning line, a fixing rod and a graduated scale; the graduated scales are fixed on four side surfaces of the sampling table; fixing rods are respectively mounted on four side surfaces of the sampling table, and the fixing rods can linearly move along the side edge of the sampling table; the positioning lines comprise a transverse positioning line and a vertical positioning line; and two ends of the transverse positioning line and the vertical positioning line are respectively fixed on the fixing rods at two opposite sides of the sampling table. When glass defects need to be sampled, the fixing rod can be moved according to the coordinates of the defects, the defect positions are accurately positioned through the graduated scale, and the intersection points of the transverse positioning lines and the longitudinal positioning lines are the defect positions. Compared with a sampling method commonly used in the industry at present, errors caused by manpower are smaller, and the accuracy is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of TFT liquid crystal glass manufacturing and relates to a TFT liquid crystal glass defect positioning device. Background Art

[0002] During the TFT glass production process, defects such as stones and bubbles may occur due to uncertain factors such as melting process, equipment wear, and daily operations. These defects destroy the uniformity of the glass, reduce the quality of the glass, and affect the further processing of the glass.

[0003] When a defect appears in glass, it's necessary to sample and test it to determine the defect's type and identify countermeasures to reduce its occurrence. Currently, sampling relies primarily on manual measurement. This involves placing the glass sheet on a sampling table, performing x- and y-axis measurements to determine the defect's location, and then taking a sample for inspection. This method is subject to significant error, and most defects are less than a millimeter in size, making them difficult to see with the naked eye. This also makes it difficult to confirm whether the measured area contains the desired defect. Utility Model Content

[0004] The purpose of the utility model is to provide a TFT liquid crystal glass defect positioning device to solve the technical problem that the prior art is difficult to accurately position the glass defect.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a TFT liquid crystal glass defect positioning device, comprising a positioning line, a fixing rod and a scale; the scale is fixed to the four sides of a sampling platform; the four sides of the sampling platform are respectively installed with fixing rods, and the fixing rods can move linearly along the sides of the sampling platform; the positioning line comprises a horizontal positioning line and a vertical positioning line; the two ends of the horizontal positioning line and the vertical positioning line are respectively fixed to the fixing rods at two opposite sides of the sampling platform.

[0007] Furthermore, four sides of the sampling platform are each equipped with a loading frame; and the fixing rod is connected to the bottom of the loading frame.

[0008] Furthermore, a groove is provided at the bottom of the loading frame for installing a fixing rod.

[0009] Furthermore, cotton strips are laid in the loading frame.

[0010] Furthermore, the cotton strip is sound insulation cotton.

[0011] Furthermore, the horizontal line where the groove is located is parallel to the side of the sampling platform.

[0012] Furthermore, a reference rod is fixed on the fixing rod, and the reference rod points to the scale on the scale.

[0013] Furthermore, the benchmark rod and the fixing rod are both stainless steel pipes.

[0014] Furthermore, an origin positioning buckle is installed on the side of the sampling platform, and the origin positioning buckle is used to fix the glass.

[0015] Furthermore, the positioning line is made of an ink fountain line.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model discloses a TFT liquid crystal glass defect locating device. A scale and a fixed rod are fixed to the four sides of the sampling platform. The fixed rods are respectively equipped with horizontal and vertical positioning lines. When sampling a glass defect, the fixed rods are moved according to the defect coordinates, and the scale is used to accurately locate the defect. The intersection of the horizontal and vertical positioning lines is the defect location. Compared with current industrial sampling methods, this device has less error caused by human labor and higher accuracy.

[0018] Furthermore, cotton strips are laid inside the loading frame of the utility model, which play an anti-slip role when the fixing rod is moved and a fixing role when the fixing rod is positioned.

[0019] Furthermore, the positioning line of the utility model adopts an ink fountain line, which can effectively prevent the positioning line from sinking and bending due to the large glass area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is the three-view drawing of the utility model. Figure 2 In the middle, a is the main view. Figure 2 b is the side view. Figure 2 Middle c is a top view;

[0023] Figure 3 This is the three-view drawing of the origin positioning buckle of the utility model. Figure 3 In the middle, a is the main view. Figure 3 b is the side view. Figure 3 Figure c is a top view.

[0024] Among them: 1- positioning line; 2- fixing rod; 3- benchmark; 4- scale; 5- loading frame; 6- cotton strip; 7- origin positioning buckle. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] The present invention is described in further detail below with reference to the accompanying drawings:

[0032] See also Figure 1 The present invention discloses a TFT liquid crystal glass defect positioning device, comprising a positioning line 1, a fixing rod 2, and a scale 4; the scale 4 is fixed to the four sides of the sampling platform; the four sides of the sampling platform are respectively installed with fixing rods 2, the fixing rods 2 are made of stainless steel, and their main function is to fix the positioning line 1 and the benchmark 3. The fixing rods 2 can move linearly along the side of the sampling platform; the positioning line 1 includes a horizontal positioning line and a vertical positioning line; the ends of the horizontal positioning line and the vertical positioning line are respectively fixed to the fixing rods 2 at two opposite sides of the sampling platform; the positioning line 1 is preferably an ink fountain line commonly used on construction sites, which is economical and not easy to break, and is lighter and less curved than other materials. The four sides of the sampling platform of the present invention are fixed with a scale 4 and a fixing rod 2; the fixing rod 2 is respectively installed with a horizontal positioning line and a vertical positioning line; when it is necessary to sample a glass defect, the fixing rod can be moved according to the defect coordinates, and the defect position can be accurately located by locating the fixing rod 4, and the intersection of the horizontal positioning line and the vertical positioning line is the defect position. Compared with the current sampling method commonly used in the industry, the device of the utility model has smaller errors caused by manpower and higher accuracy.

[0033] In a feasible embodiment of the present invention, a loading frame 5 is installed on the four sides of the sampling platform; a groove is opened at the bottom of the loading frame 5, and the horizontal line of the groove is parallel to the side of the sampling platform, and the groove is used to install the fixing rod 2.

[0034] In a feasible embodiment of the present invention, a cotton strip 6 is laid in the loading frame 5. The cotton strip 6 is preferably made of sound-proof cotton. It plays an anti-slip role when the fixing rod 2 is moved and plays a fixing role when the fixing rod 2 is positioned.

[0035] In a feasible embodiment of the present invention, a marker rod 3 is fixed on the fixed rod 2 , and the marker rod 3 points to the scale on the scale 4 . The marker rod 3 is made of stainless steel and is cylindrical. Its main function is to align the scale 4 .

[0036] In a feasible implementation manner of the present invention, the marking rod 3 and the fixing rod 2 are both stainless steel pipes.

[0037] In one feasible embodiment of the present invention, an origin positioning buckle 7 is mounted on the side of the sampling platform. This buckle is used to secure the glass. The buckle is made of a wear-resistant, rust-resistant hollow stainless steel tube. This buckle effectively prevents the glass from moving during measurement, and its structure is simple and effective.

[0038] Example:

[0039] The embodiment of the present utility model provides a TFT liquid crystal glass defect positioning device; it includes a positioning line 1 for detecting positioning defects, a fixed rod 2, a scale 4, a loading frame 5 for carrying a cotton strip 6, and an origin positioning buckle 7. The positioning line 1 is fixed to the fixed rods of the loading frame on both sides of the sampling table using an ink fountain line. The use of an ink fountain line can effectively prevent the positioning line from sinking and bending due to the large glass area. When not in use, the horizontal and vertical positioning lines should intersect above the origin positioning buckle; when in use, the fixed rod 2 is moved according to the defect coordinates so that the mark rod 3 on the fixed rod 2 points to the required scale. The intersection of the horizontal and vertical positioning lines is the defect location. See Figure 2 Middle a, Figure 2 Zhongb and Figure 2 In the middle, the upper part of the loading frame 5 is engraved with a scale 4, and the mark 3 of the fixed rod 2 is aligned here when in use; the cotton strip 6 in the lower part of the inner side of the loading frame 5 fixes the fixed rod 2 when in use to prevent the fixed rod 2 from moving. Figure 3 Middle a, Figure 3 Zhongb and Figure 3 Figure c in the middle is a three-view drawing of the origin positioning buckle 7, which is composed of two isosceles right triangles. After the glass plate is taken out, the glass is placed on the sampling table and aligned with the origin positioning buckle 7.

[0040] The specific steps of the measurement process are as follows:

[0041] Step 1: Determine the coordinates given by the inspection machine and print them on A4 paper;

[0042] Step 2: Determine the glass origin and align the glass origin with the origin positioning buckle 7 to place the glass substrate on the sampling table.

[0043] Step 3: According to the defect coordinates of the inspection machine, the two horizontal fixed rods 2 are moved to the specified position in the horizontal dimension, and the reference rod 3 is determined to be located at the specified position of the scale 4 and consistent with the position given by the inspection machine.

[0044] Step 4: Move the longitudinal fixing rod 2 to the designated position and ensure that the longitudinal marking rod 3 is located at the designated position.

[0045] Step 5: The intersection of the horizontal positioning line and the vertical positioning line is the location of the defect.

[0046] In this embodiment of the utility model, an operator manually measures a glass sample plate. To locate defects, the operator first locates the origin of the glass within the origin positioning buckle 7, then moves the horizontal and vertical fixing rods 2 to the coordinates given by the inspection machine, and finally marks the defect location, i.e., the intersection of the positioning lines. This detection device has a simple structure and is easy to operate. It is more accurate than manual measurement and does not cause glass displacement or inconvenience when the defect is located in the middle of the glass plate. Each measurement only requires moving the positioning device, positioning, and marking. The measurement results are accurate with minimal error, fully meeting the requirements of process use.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A TFT liquid crystal glass defect positioning device, characterized in that: The invention comprises a positioning line (1), a fixing rod (2) and a scale (4); the scale (4) is fixed to the four sides of the sampling platform; the four sides of the sampling platform are respectively installed with fixing rods (2), and the fixing rods (2) can move linearly along the sides of the sampling platform; the positioning line (1) comprises a horizontal positioning line and a vertical positioning line; the two ends of the horizontal positioning line and the vertical positioning line are respectively fixed to the fixing rods (2) at two opposite sides of the sampling platform.

2. The TFT liquid crystal glass defect locating device according to claim 1, characterized in that: The four sides of the sampling platform are all equipped with a loading frame (5); the fixing rod (2) is connected to the bottom of the loading frame (5).

3. The TFT liquid crystal glass defect locating device according to claim 2, characterized in that: The bottom of the object carrying frame (5) is provided with a groove for installing the fixing rod (2).

4. The TFT liquid crystal glass defect locating device according to claim 2, characterized in that: Cotton strips (6) are laid in the object-carrying frame (5).

5. The TFT liquid crystal glass defect locating device according to claim 4, characterized in that: The cotton strip (6) is sound insulation cotton.

6. The TFT liquid crystal glass defect locating device according to claim 3, characterized in that: The horizontal line where the groove is located is parallel to the side of the sampling platform.

7. The TFT liquid crystal glass defect locating device according to claim 1, characterized in that: A marking rod (3) is fixed on the fixing rod (2), and the marking rod (3) points to the scale on the scale (4).

8. The TFT liquid crystal glass defect locating device according to claim 7, characterized in that: The benchmark (3) and the fixed rod (2) are both stainless steel pipes.

9. The TFT liquid crystal glass defect locating device according to claim 1, characterized in that: An origin positioning buckle (7) is also installed on the side of the sampling platform, and the origin positioning buckle (7) is used to fix the glass.

10. The TFT liquid crystal glass defect locating device according to claim 1, characterized in that: The positioning line (1) is made of an ink fountain line.

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