On-line detection device for color difference defect of coated glass

Abstract

The utility model discloses an on-line detection device for color difference defects of coated glass. The on-line detection device comprises a conveying roller frame, a cleaning section and a detection section which are sequentially arranged from upstream to downstream, the cleaning section comprises a door-shaped frame and two ribbon rings symmetrically arranged in the door-shaped frame, the ribbon rings are driven by a roll shaft driven by a motor, and the distance between the two ribbon rings is equal to the thickness of glass; two groups of metal bars and two dust removal mechanisms are symmetrically arranged in the door-shaped frame; the ribbon rings are wound on the corresponding metal bars in an S shape; the dust removal mechanism comprises a dust suction box attached to the ribbon ring, an air inducing pipe is connected to the dust suction box, and an electric brush roller matched with the ribbon ring is arranged in the dust suction box. The detection section comprises a conveying belt and a color difference detector arranged above the conveying belt; the cleaning section is used for performing electrostatic adsorption dust removal on the upper surface and the lower surface of the glass, so that the cleaning of the surface of the glass reaching the color difference detector is ensured, the error report of color difference defective products caused by dust and impurities is avoided, and the accuracy of a detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the field of glass detection equipment, in particular to an online detection device for chromatic aberration defects of coated glass. Background Art

[0002] The downstream of the coated glass production line needs to perform color difference detection on the finished glass products to screen out defective products. The existing color difference detection device includes a conveyor belt and a color difference detector. The glass is scanned and photographed by the color difference detector, and the defective products can be distinguished by comparing it with the image of good products. However, due to the limited cleanliness of the glass, false alarms of defective products caused by dust and impurities may occur occasionally. Therefore, a detection line that can effectively clean the glass upstream of the color difference detector is needed. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the utility model is to provide an online detection device for chromatic aberration defects of coated glass, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An online detection device for chromatic aberration defects of coated glass, comprising a conveying roller frame, a cleaning section and a detection section arranged in sequence from upstream to downstream; the cleaning section comprises a portal frame and two ribbon loops symmetrically arranged in the portal frame, the width of the ribbon loops is not less than the width of the glass, the ribbon loops are driven by a roller shaft driven by a motor and the spacing between the two ribbon loops is equal to the thickness of the glass; two groups of metal rods and two dust removal mechanisms are also symmetrically arranged in the portal frame, the ribbon loops are S-shaped and wrapped around the corresponding metal rods; the dust removal mechanism comprises a dust box attached to the ribbon loops, an air duct is connected to the dust box, and an electric brush roller cooperating with the ribbon loops is arranged in the dust box; the detection section comprises a conveyor belt and a chromatic aberration detector arranged above the conveyor belt.

[0006] Furthermore, the outlet of the induced draft duct is connected to a bag dust collector.

[0007] Furthermore, two electric brush rollers are arranged in the dust collection box.

[0008] Furthermore, a grounding rod is provided in the dust collection box, and the grounding rod is pressed against the ribbon ring.

[0009] Furthermore, two color difference detectors are arranged along the traveling direction of the conveyor belt.

[0010] The utility model has the following beneficial technical effects:

[0011] The utility model uses a cleaning section to electrostatically adsorb and remove dust from the upper and lower surfaces of the glass, ensuring the cleanliness of the glass surface reaching the color difference detector, thereby avoiding false alarms of color difference defective products caused by dust impurities and ensuring the accuracy of the detection results. The application is novel in design and has a low operating temperature, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0013] Figure 2 for Figure 1 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0014] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0015] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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. 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 circumstances.

[0016] like Figure 1 and Figure 2 As shown, an online detection device for chromatic aberration defects of coated glass described in this embodiment comprises a conveying roller frame 1, a cleaning section 2 and a detection section 3 arranged in sequence from upstream to downstream; the cleaning section 2 comprises a door-shaped frame 4 and two ribbon loops 5 symmetrically arranged in the door-shaped frame 4, the material of the ribbon loop 5 is silk, the width of the ribbon loop 5 is not less than the width of the glass 6, the ribbon loop 5 is driven by a roller shaft 7 driven by a motor and the spacing between the two ribbon loops 5 is equal to the thickness of the glass 6, so that the upper and lower surfaces of the glass 6 are in contact with the ribbon loop 5; two groups of metal rods 8 and two dust removal mechanisms are also symmetrically arranged in the door-shaped frame 4, the length of the metal rod 8 is not less than the width of the ribbon loop 5, and the ribbon loop 5 is S-shaped and wrapped around the corresponding metal rod 8;

[0017] The dust removal mechanism includes a dust box 9 attached to the ribbon loop 5, the dust box 9 is connected to an air duct 10, the outlet of the air duct 10 is connected to a bag dust collector, and two electric brush rollers 11 cooperating with the ribbon loop 5 are arranged in the dust box 9, and the rotation direction of the electric brush roller 11 is opposite to the travel direction of the ribbon loop 5. A grounding rod 12 is also arranged in the dust box 9, and the grounding rod 12 is pressed against the ribbon loop 5. The material of the grounding rod 12 is iron and the length of the grounding rod 12 is not less than the width of the ribbon loop 5; the detection section 3 includes a conveyor belt 13 and a color difference detector 14 arranged above the conveyor belt 13. Two color difference detectors 14 are arranged along the travel direction of the conveyor belt 13. The same piece of glass 6 is tested twice in turn by the two color difference detectors 14. If the two test results are the same, it is considered to be a qualified product. If any color difference detector 14 feedbacks a defective product, it is rated as a defective product and then manually checked and confirmed. This can improve the detection accuracy.

[0018] The working principle of this embodiment is:

[0019] The glass 6 to be inspected is sent to the cleaning section 2 through the conveying roller frame 1, and two ribbon loops 5 are attached to the upper and lower surfaces of the glass 6. The moving direction of the ribbon loops 5 is opposite to the conveying direction of the glass 6. Since the ribbon loops 5 are electrified by friction with the metal rod 8 upstream, the ribbon loops 5 accumulate negative charges, and the dust in the air and the dust falling on the glass 6 are positively charged. Under the cleaning and electrostatic adsorption of the ribbon loops 5, the dust on the upper and lower surfaces of the glass 6 is transferred to the ribbon loops 5. When the ribbon loops 5 move to the dust removal mechanism, they are cleaned by the electric brush roller 11. The grounding rod 12 can ground the ribbon loops 5 near it, reduce the electrostatic adsorption effect of the ribbon loops 5 on the dust, and facilitate cleaning. After cleaning, the ribbon loops 5 continue to move forward and contact and rub with the metal rod 8; in this embodiment, the cleaning section 2 is used to perform electrostatic adsorption and dust removal on the upper and lower surfaces of the glass 6 to ensure the cleanliness of the surface of the glass 6 reaching the color difference detector 14, thereby avoiding false alarms of color difference defective products caused by dust impurities and ensuring the accuracy of the detection results.

[0020] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. An online detection device for chromatic aberration defects of coated glass, characterized in that: It includes a conveying roller frame, a cleaning section and a detection section which are arranged in sequence from upstream to downstream; the cleaning section includes a door-shaped frame and two ribbon loops symmetrically arranged in the door-shaped frame, the width of the ribbon loop is not less than the width of the glass, the ribbon loop is driven by a roller shaft driven by a motor and the spacing between the two ribbon loops is equal to the thickness of the glass; two groups of metal rods and two dust removal mechanisms are also symmetrically arranged in the door-shaped frame, the ribbon loops are S-shaped and wrapped around the corresponding metal rods; the dust removal mechanism includes a dust box attached to the ribbon loop, the dust box is connected to an air duct, and an electric brush roller cooperating with the ribbon loop is arranged in the dust box; the detection section includes a conveyor belt and a color difference detector arranged above the conveyor belt.

2. The on-line detection device for chromatic aberration defects of coated glass according to claim 1, characterized in that: The outlet of the induced air duct is connected with a bag dust collector.

3. The on-line detection device for chromatic aberration defects of coated glass according to claim 1, characterized in that: Two electric brush rollers are arranged in the dust collection box.

4. The on-line detection device for chromatic aberration defects of coated glass according to claim 1 or 3, characterized in that: A grounding rod is also arranged in the dust collection box, and the grounding rod is pressed against the ribbon ring.

5. The on-line detection device for chromatic aberration defects of coated glass according to claim 1, characterized in that: Two color difference detectors are arranged along the traveling direction of the conveyor belt.

Images