On-line detection device for low-emissivity film layer defects

Abstract

The utility model relates to a kind of low radiation film layer defect's on-line detection device, belong to glass detection technical field, including detection device and conveying line body, conveying line body includes line body support, and lower part illumination blow cleaning assembly is installed on line body support;Detection device includes detection support, and upper part illumination blow cleaning assembly is installed in the lower part of detection support;Upper part illumination blow cleaning assembly and lower part illumination blow cleaning assembly include lamp tube cover and light source lamp tube;Lamp tube cover both sides are equipped with interface;By passing into compressed air in upper part illumination assembly and lower part illumination assembly, utilize the airflow of lamp tube cover opening to remove the pollutant on the surface of glass quickly, avoid the false defect caused by secondary pollution, reduce detection misjudgment rate;Blow cleaning and illumination process do not affect the conveying of glass, guarantee production efficiency;The structural design of lamp tube cover provides protection for light source lamp tube, can also guide compressed air to form directional airflow, while forming positive pressure in lamp tube cover, avoid dust adhesion to affect illumination intensity.

Description

Technical Field

[0001] This utility model relates to an online detection device for low-emissivity film defects, belonging to the field of glass inspection technology. Background Technology

[0002] Low-emissivity (LEE) glass is an energy-saving glass with multiple layers of metal or compound films coated on its surface. The quality of these films directly affects the glass's optical and thermal properties and its lifespan. Online inspection of LEE film defects is an industrial online inspection specifically designed for defects in the coating layer of LEE glass. Its core is to identify film defects in real time during the glass transport process using optical, visual, or electrical methods. Currently, it is mainly divided into two categories: online monitoring of the coating process and online inspection of the finished product after coating.

[0003] After the glass is coated, it is cleaned by a cleaning machine. However, during the process of transporting it to the inspection area, dust from roller wear and floating glass powder adsorbed by electrostatic attraction will re-adhere to the glass surface, especially at the roller contact point, forming "roller imprint" false defects. This will lead to a large number of misjudgments by the online inspection device, thereby significantly reducing the inspection accuracy, increasing the workload of subsequent manual re-inspection, and affecting production efficiency. Utility Model Content In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an online detection device for low-emissivity film defects, which can remove dust and floating glass powder on the upper and lower surfaces of the glass by airflow before the glass enters the detection area, effectively avoid false defects caused by secondary pollution, and improve the accuracy of film defect detection.

[0004] The online detection device for low-emissivity film defects of this utility model includes a detection device and a conveyor line. The detection device is arranged horizontally above the conveyor line, and the glass to be detected is conveyed to the detection area of ​​the detection device by the conveyor line. The conveyor line includes a line support frame, on which a plurality of conveyor rollers are rotatably mounted. The conveyor rollers are driven by a motor. A lower lighting and blowing assembly is also installed on the line support frame. The detection device includes a detection bracket, a number of industrial cameras are mounted on the top of the detection bracket, and an upper illumination and purge assembly is mounted on the lower part of the detection bracket, with the upper illumination and purge assembly located below the industrial cameras. The upper and lower lighting purging components have the same structure, both including a lamp cover and a light source lamp tube disposed inside the lamp cover; the lamp cover has interfaces on both sides for introducing compressed air, and the side of the lamp cover facing the glass has an opening for light to pass through, while allowing compressed air to flow out, and the compressed air flowing out from the opening forms an airflow to purge the glass surface.

[0005] Furthermore, the upper lighting purging assembly also includes a connecting rod, with the lamp cover fixedly connected to the connecting rod. The connecting rod is adjustablely connected to the detection bracket via a locking mounting seat to facilitate the installation and angle adjustment of the lamp cover.

[0006] Furthermore, the conveying roller is equipped with rubber wheels, which can reduce scratches during glass conveying and reduce the probability of electrostatic dust adsorption. The two sides of the conveying roller are mounted on the line support through bearing seats, and the motor drives the conveying roller to rotate synchronously through a belt and pulley transmission mechanism to achieve stable glass conveying.

[0007] Furthermore, the industrial camera is mounted on the inspection bracket via a locking mounting base. The locking mounting base can adjust the installation position and shooting angle of the industrial camera, making it easy to adjust the camera parameters according to glass specifications and inspection requirements, ensuring the shooting field of view and inspection accuracy.

[0008] Furthermore, the locking mounting base has a through groove, and a locking bolt is threaded into the through groove. By rotating the locking bolt, the spacing of the through groove can be adjusted to achieve rapid locking of the industrial camera angle.

[0009] The advantages of this utility model compared with the prior art are: 1. This utility model introduces compressed air into the lamp cover of the upper and lower lighting components, and uses the airflow from the lamp cover opening to sweep the glass surface. This can quickly remove dust, glass powder and other contaminants from the upper and lower surfaces of the glass before testing, effectively avoiding "roller-print" false defects caused by secondary pollution during transportation, and greatly reducing the false judgment rate of testing. 2. The purging process is carried out simultaneously with the lighting process, without the need for additional purging steps, and does not affect the glass conveying rhythm, thus ensuring production efficiency. The structural design of the lamp cover not only provides protection for the light source tubes, but also guides compressed air to form a directional airflow, improving the purging effect. At the same time, positive pressure is formed inside the lamp cover to prevent dust in the workshop from adhering to the light source tubes and affecting the light intensity. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the working state of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the conveyor line structure; Figure 4 This is a schematic diagram of the detection device; Figure 5 This is a cross-sectional view of the upper lighting purge assembly.

[0011] In the diagram: 1. Detection device; 11. Industrial camera; 12. Detection bracket; 13. Locking mounting base; 14. Upper lighting and blowing assembly; 141. Connecting rod; 142. Lamp cover; 143. Light source tube; 2. Conveyor line; 21. Conveyor roller; 211. Rubber wheel; 22. Line support; 23. Lower lighting and blowing assembly; 24. Bearing seat; 25. Motor; 3. Glass. Detailed Implementation

[0012] The present invention will be further described below with reference to specific embodiments.

[0013] like Figure 1-5 As shown, this embodiment is achieved through the following technical solution: It includes a detection device 1 and a conveyor line 2. The detection device 1 is horizontally positioned above the conveyor line 2. The glass 3 to be detected is conveyed by the conveyor line 2 to the detection area of ​​the detection device 1. The conveyor line 2 includes a line support 22, on which several conveying rollers 21 are rotatably mounted. The conveying rollers 21 are driven by a motor 25. A lower illumination and blowing assembly 23 is also installed on the line support 22. The detection device 1 includes a detection bracket 12, on which several industrial cameras 11 are mounted. An upper illumination and blowing assembly 14 is mounted at the bottom of the detection bracket 12, located below the industrial cameras 11. The lower illumination and blowing assembly 23 is located below the glass, and the upper illumination and blowing assembly 14 is located above the glass. The upper lighting purging assembly 14 and the lower lighting purging assembly 23 have the same structure, both including a lamp cover 142 and a light source lamp tube 143 disposed inside the lamp cover 142; the lamp cover 142 has interfaces on both sides for introducing compressed air, and the lamp cover 142 has an opening on the side facing the glass 3, the opening is used to allow light to pass through, and at the same time allows compressed air to flow out, the compressed air flowing out from the opening forms an airflow to purge the surface of the glass 3.

[0014] In this embodiment, the upper lighting and blowing assembly 14 also includes a connecting rod 141. The lamp cover 142 is fixedly connected to the connecting rod 141. The connecting rod 141 is adjustablely connected to the detection bracket 12 via the locking mounting seat 13 to facilitate the installation and angle adjustment of the lamp cover 142. Rubber wheels 211 are provided on the conveying roller 21 to reduce scratches on the glass 3 during conveying and to reduce the probability of electrostatic dust adsorption. The conveying roller 21 is mounted on the line support 22 on both sides via bearing seats 24. The motor 25 drives the conveying roller 21 to rotate synchronously via a belt and pulley transmission mechanism, achieving stable conveying of the glass 3.

[0015] The industrial camera 11 is mounted on the inspection bracket 12 via a locking mounting base 13. The locking mounting base 13 can adjust the installation position and shooting angle of the industrial camera 11, facilitating the adjustment of camera parameters according to the specifications of the glass 3 and inspection requirements, ensuring the shooting field of view and inspection accuracy. The locking mounting base 13 has a through groove, and a locking bolt is threaded into the through groove. By rotating the locking bolt, the spacing of the through groove is adjusted to quickly lock the angle of the industrial camera 11.

[0016] The working process of this utility model is as follows: 1. The glass is placed on the conveyor line 2 and conveyed forward by the conveyor roller 21 to the space between the lower lighting and purging assembly 23 and the upper lighting and purging assembly 14; 2. Clean and dry compressed air is introduced into the lamp covers of both the lower lighting purge assembly 23 and the upper lighting purge assembly 14, and flows outward from the front opening of the lamp cover, blowing onto the glass to remove dust and floating glass powder from the upper and lower surfaces of the glass. Then, it immediately enters the field of view of the industrial camera 11 to detect film defects, effectively avoiding the problem of false defects caused by secondary contamination during glass transportation, which leads to misjudgment.

Claims

1. An online detection device for low-emissivity film defects, characterized in that, It includes a detection device (1) and a conveyor line (2), with the detection device (1) positioned across the top of the conveyor line (2); The conveyor line (2) includes a line support (22), and several conveyor rollers (21) are rotatably mounted on the line support (22). The conveyor rollers (21) are driven by a motor (25). The lower lighting and blowing assembly (23) is also installed on the line support (22). The detection device (1) includes a detection bracket (12), a number of industrial cameras (11) are mounted on the top of the detection bracket (12), and an upper lighting and purging assembly (14) is mounted on the lower part of the detection bracket (12). The upper lighting and purging assembly (14) is located below the industrial cameras (11). The upper lighting and purging assembly (14) and the lower lighting and purging assembly (23) have the same structure, both including a lamp cover (142) and a light source lamp (143) set in the lamp cover (142). The lamp cover (142) has interfaces on both sides for introducing compressed air.

2. The online detection device for low-emissivity film defects according to claim 1, characterized in that, The lamp cover (142) has an opening on the side facing the glass (3).

3. The online detection device for low-emissivity film defects according to claim 1, characterized in that, The upper lighting purge assembly (14) also includes a connecting rod (141), the lamp cover (142) is fixedly connected to the connecting rod (141), and the connecting rod (141) is adjustablely connected to the detection bracket (12) through the locking mounting seat (13).

4. The online detection device for low-emissivity film defects according to claim 1, characterized in that, The conveying roller (21) is equipped with a rubber wheel (211); the two sides of the conveying roller (21) are mounted on the line support (22) through bearing seats (24), and the motor (25) drives the conveying roller (21) to rotate synchronously through the belt and pulley transmission mechanism.

5. The online detection device for low-emissivity film defects according to claim 3, characterized in that, The industrial camera (11) is mounted on the detection bracket (12) via a locking mounting base (13).

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