Fixed-point sampling device for display screen carrier plate glass

Abstract

The utility model discloses a fixed-point sampling device for display screen carrier plate glass, which relates to the technical field of glass production and detection auxiliary equipment and comprises a conveying belt body, a detection device and a material lifting device. The detection device comprises a detection camera and a fixing support, the fixing support crosses the conveying belt body, and the detection camera is located in the middle of the conveying belt body in the width direction and connected with the fixing support through an adjusting plate. The lifting device comprises a lifting plate and a lifting cylinder, the lifting cylinder is located below the lifting plate, the lifting plate is located between the two idler wheel gaps of the conveying belt body, the width of the lifting plate is smaller than the two idler wheel gaps, and the movement stroke of the lifting cylinder is larger than the upper end of the conveying belt body. Therefore, the lifting device is arranged below the to-be-detected sample, and the to-be-detected sample is lifted by the lifting rod and the lifting plate in the lifting device, so that the to-be-detected sample is temporarily fixed and is quickly shot in a static state, and the aim of improving the detection and sampling accuracy is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production and detection auxiliary equipment, in particular to a fixed-point sampling device for display screen carrier glass. Background Art

[0002] In addition to being used as an electrode, the carrier glass in the electronic display screen also needs to provide important support for various electronic components. Carrier glass is generally produced in an assembly line, and in order to ensure product quality, it needs to be tested to see if it is qualified.

[0003] In the production process of carrier glass, detecting whether there are cracks in the carrier glass is an important step. Only carrier glass without cracks is a qualified product entering the market. At this stage, the glass crack detection equipment basically uses the backlight panel as the light source. The camera takes a picture of the carrier glass transported by the conveyor belt when it passes through the backlight panel, and the analysis and detection module then analyzes the captured picture to detect whether the carrier glass is qualified.

[0004] In the prior art, there is a patent document with a publication number of CN219161967U and a patent name of: A patent document for a rapid detection device for carrier glass for display screens. In this document, a detection mechanism is set on a support frame and the grabbing function of the detection camera is used to achieve rapid detection of the carrier glass. In actual use, since it is basically an assembly line operation, taking pictures of moving products for detection requires the camera to focus and capture quickly. Affected by the photographic equipment, if the photographic effect is to be guaranteed, an extremely expensive camera needs to be used, and some products will still appear blurred, affecting the detection effect. Moreover, when the above patent is used, the product to be inspected needs to be transported to the inspection platform first, and then sent back to the production line after the inspection is completed, which will increase the process of multiple transfers and affect production efficiency. Utility Model Content

[0005] In order to overcome the above-mentioned defects, the purpose of the utility model is to provide a fixed-point sampling device for display screen carrier glass, which arranges a lifting device under the sample to be tested, utilizes the lifting rod and lifting plate in the lifting device to lift the sample to be tested, and temporarily fixes it, so as to achieve rapid shooting in a static state, thereby improving the accuracy of detection sampling.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a fixed-point sampling device for display screen carrier glass, characterized in that it includes a conveyor belt body, a detection device and a material lifting device; the detection device includes a detection camera and a fixed bracket, the fixed bracket spans the conveyor belt body, the detection camera is located in the middle of the conveyor belt body in the width direction, the detection camera is located above the sample to be detected, and is connected to the fixed bracket through an adjustment plate; the lifting device includes a lifting plate and a lifting cylinder, the lifting cylinder is located below the lifting plate, the lifting plate is located between the gap between the two rollers of the conveyor belt body, the width of the lifting plate is smaller than the gap between the two rollers, and the movement stroke of the lifting cylinder is larger than the upper end of the conveyor belt body.

[0007] Preferably, guide columns are provided on both sides of the lifting cylinder, guide rods are slidably connected inside the guide columns, and ends of the guide rods are fixedly connected to the lifting plate.

[0008] Preferably, the upper end surface of the lifting plate is also provided with a plurality of anti-slip pads.

[0009] Preferably, a plurality of light sources are provided on the side of the anti-slip pad.

[0010] Preferably, the conveyor belt body is a roller conveyor belt.

[0011] Preferably, there are two lifting devices, and the distance between the two lifting devices is smaller than the length of the sample to be tested.

[0012] Preferably, the lifting cylinder is a pneumatic cylinder.

[0013] After adopting the above technical solution, the beneficial technical effects achieved by the utility model are:

[0014] 1. Since a material lifting device is added to the gap of the roller of the conveyor belt body, the sample to be tested is lifted and temporarily fixed through the material lifting device, which can facilitate the detection camera in the detection device to quickly focus and take pictures. In the above process, the detection camera takes pictures when the sample to be tested is stationary, so the shooting effect is much better than the snapshot in motion, so it will be clearer. Moreover, the detection camera used does not need to be too high-end, which can effectively reduce the procurement cost and the cost of later replacement and maintenance.

[0015] 2. The material lifting device uses a lifting cylinder to provide upward power and uses a guide column to provide a guiding function. When sampling, the lifting height of the lifting plate can be controlled according to the quality of the items to be tested, and the lifting time of the lifting plate can also be controlled. On the basis of ensuring the gap, random sampling or batch testing can be achieved, which will be more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of an embodiment of a fixed-point sampling device for display screen carrier glass of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the material lifting device in the utility model;

[0018] In the figure, 1, conveyor belt body; 11, roller;

[0019] 2. Detection device; 21. Fixed bracket; 22. Detection camera; 23. Adjustment plate;

[0020] 3. Material lifting device; 31. Lifting plate; 32. Lifting cylinder; 33. Guide column; 34. Anti-slip pad;

[0021] 4. Samples to be tested. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] See also Figure 1-Figure 2The utility model provides a fixed-point sampling device for display screen carrier glass, comprising a conveyor belt body 1, a detection device 2 and a material lifting device 3; the detection device 2 comprises a detection camera 22 and a fixed bracket 21, the fixed bracket 21 spans the conveyor belt body 1, the detection camera 22 is located in the middle of the width direction of the conveyor belt body 1, the detection camera 22 is located above the sample 4 to be detected, and is connected to the fixed bracket 21 through an adjustment plate 23; the lifting device comprises a lifting plate 31 and a lifting cylinder 32, the lifting cylinder 32 is located below the lifting plate 31, the lifting plate 31 is located between the gap between the two rollers of the conveyor belt body 1, the width of the lifting plate 31 is smaller than the gap between the two rollers 11, and the movement stroke of the lifting cylinder 32 is greater than the upper end of the conveyor belt body 1. When in use, in order to facilitate taking pictures, the fixed bracket 21 of the utility model is fixedly installed on both sides of the width direction of the conveyor belt body 1, and when the detection sample passes through the lower part of the adjustment plate 23, the detection camera 22 located on the adjustment plate 23 can directly take samples. The conveyor belt body 1 is generally a roller conveyor belt, that is, the two sides of the roller 11 provide power to the roller 11 through chains, and there is a gap between adjacent rollers 11. The material lifting device 3 is placed in the gap between the rollers 11 below the detection camera 22, and it is ensured that the lifting plate 31 does not interfere with the rollers 11 on both sides when moving up and down. When the lifting cylinder 32 is lifted upward, the lifting plate 31 will lift the sample 4 to be tested that is moving on the roller 11. When it pauses temporarily, the detection camera 22 will quickly focus and take pictures. The photos taken will generally be directly transmitted to the display for magnification and comparison to observe whether there are products with obvious defects, especially whether there are cracks in the product. Since the sample 4 to be tested is fixed during the photo-taking process, the accuracy of the photo-taking can be greatly improved to prevent the picture from being blurred.

[0024] The lifting cylinder 32 of the utility model is provided with guide columns 33 on both sides, and a guide rod is slidably connected in the guide column 33, and the end of the guide rod is fixedly connected to the lifting plate 31. Generally, the lifting cylinder 32 and the lifting plate 31 are not fully rigidly connected, and there will be a certain angle of deflection due to the influence of the installation accuracy. By using the guiding effect of the two guide columns 33, it can be ensured that the movement of the lifting plate 33 in the vertical direction will be more accurate, and there will be no interference and collision with the roller 11.

[0025] The upper end surface of the lifting plate 31 of the utility model is also provided with a plurality of anti-skid pads 34. Generally, there are two groups of lifting cylinders 32. The most ideal way is to use a set of control systems to allow the two groups of lifting cylinders 32 to achieve synchronous lifting. However, in actual operation, the two lifting rods move in sequence. The anti-skid pads can be used to ensure that the sample 4 to be tested will not slide when it is tilted at a certain angle.

[0026] The side of the anti-skid pad 34 of the utility model is provided with a plurality of light sources (not shown in the figure). The light sources are for supplementary lighting to ensure the clarity when taking pictures.

[0027] The utility model has two lifting devices, and the distance between the two lifting devices is less than the length of the sample 4 to be tested. The lifting by the two lifting devices will be more stable. Generally, the lifting cylinder 32 is preferably a pneumatic cylinder or an electric cylinder. The pneumatic cylinder has more applications in the entire automation system, while the electric cylinder has a simpler structure and is more convenient to install and debug.

[0028] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A fixed-point sampling device for display screen carrier glass, characterized in that: It includes a conveyor belt body, a detection device and a material lifting device; The detection device comprises a detection camera and a fixed bracket, wherein the fixed bracket spans the conveyor belt body, the detection camera is located in the middle of the conveyor belt body in the width direction, the detection camera is located above the sample to be detected, and is connected to the fixed bracket through an adjustment plate; The lifting device includes a lifting plate and a lifting cylinder, wherein the lifting cylinder is located below the lifting plate, and the lifting plate is located between the gap between two rollers of the conveyor belt body. The width of the lifting plate is smaller than the gap between the two rollers, and the movement stroke of the lifting cylinder is greater than the upper end of the conveyor belt body.

2. The display screen carrier glass fixed-point sampling device according to claim 1, characterized in that: Guide columns are provided on both sides of the lifting cylinder, guide rods are slidably connected inside the guide columns, and ends of the guide rods are fixedly connected to the lifting plate.

3. The display screen carrier glass fixed-point sampling device according to claim 2, characterized in that: The upper end surface of the lifting plate is also provided with a plurality of anti-skid pads.

4. The display screen carrier glass fixed-point sampling device according to claim 3, characterized in that: A plurality of light sources are arranged on the side of the anti-slip pad.

5. The display screen carrier glass fixed-point sampling device according to claim 1, characterized in that: The conveyor belt body is a roller conveyor belt.

6. The display screen carrier glass fixed-point sampling device according to claim 5, characterized in that: There are two lifting devices, and the distance between the two lifting devices is smaller than the length of the sample to be detected.

7. The display screen carrier glass fixed-point sampling device according to claim 1, characterized in that: The lifting cylinder is a pneumatic cylinder.

Images