Cover plate defective point detection and automatic wiping device

Abstract

The utility model provides a cover plate defective point detection and automatic wiping device. The cover plate defective point detection and automatic wiping device comprises a detection conveyor belt, a first detection module, a wiping module and a second detection module, the inspection conveyor belt is used for conveying a cover plate, and the cover plate sequentially passes through the first detection module, the wiping module and the second detection module on the inspection conveyor belt; the first detection module is used for detecting an initial bad point of the cover plate; the wiping module is used for wiping the position of the initial bad point; and the second detection module is used for detecting actual bad points of the wiped cover plate. According to the technical scheme, the detection automation is improved, the misjudgment rate is reduced through secondary detection and automatic wiping, the production efficiency is improved, the defects such as scratches, secondary pollution and corner jumping and breaking caused by manual inspection are reduced, and the production loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a cover plate bad point detection and automatic wiping device. Background Art

[0002] In the process of making glass cover plates, due to process errors, it is easy to have ink light transmission points (pinholes), crystal points between the coating layer and the glass, or bubble points in the glass, etc. These bad points cannot be wiped off. In addition, in the determination of bad points on traditional cover plates, it is difficult for the naked eye to distinguish the difference in size within the range of plus or minus 0.05 mm, which is easy to cause misjudgment, which requires manual re-inspection. However, during the manual inspection process, it is very easy to cause scratches on the cover plate, collision and breakage of the corners, or secondary pollution, causing the cover plate to be scrapped, reducing production efficiency and causing losses. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a cover plate bad point detection and automatic wiping device.

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

[0005] The present invention provides a device for detecting and automatically wiping bad spots on a cover plate, comprising:

[0006] Checking the conveyor belt, the first detection module, the wiping module, and the second detection module;

[0007] The inspection conveyor belt is used to convey the cover plate, and the cover plate passes through the first inspection module, the wiping module and the second inspection module in sequence on the inspection conveyor belt;

[0008] The first detection module is used to detect the initial defective point of the cover plate;

[0009] The wiping module will wipe the location of the initial defective point;

[0010] The second detection module is used to detect actual defective spots on the cover plate after wiping.

[0011] As a preferred embodiment of the present invention, the inspection conveyor belt includes a backlight source, and the backlight source is used to illuminate the cover plate from the bottom of the cover plate.

[0012] As a preferred embodiment of the utility model, it also includes a front light source, which is arranged above the cover plate and is used to illuminate the front side of the cover plate.

[0013] As a preferred embodiment of the utility model, it also includes: a marking module, after the cover plate passes through the second inspection module on the inspection conveyor belt, it passes through the marking module;

[0014] The marking module is used to mark the cover as defective after the actual defective point is detected.

[0015] As a preferred embodiment of the present utility model, the wiping module includes a mechanical arm and a wiping head.

[0016] As a preferred embodiment of the utility model, the wiping head includes a soft plastic head and a dust-free cloth, and the dust-free cloth is wrapped around the outside of the soft plastic head.

[0017] As a preferred embodiment of the present invention, it further comprises a control module, which is electrically connected to the inspection conveyor belt, the first detection module, the wiping module and the second detection module respectively.

[0018] As a preferred implementation of the present utility model, the first detection module includes a first camera and a second camera.

[0019] As a preferred implementation of the present utility model, the second detection module is a third camera.

[0020] As a preferred implementation of the present utility model, the first camera, the second camera and the third camera are all high-definition cameras with 100 times magnification.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] Through the technical solution of the embodiment of the utility model, when detecting defective points of the cover plate, the cover plate is conveyed by the detection conveyor belt, and the initial defective points on the cover plate are first detected by the first detection module. The types of initial defective points may include pinholes, crystal points, and wipeable stains, etc. At this time, it is difficult to distinguish the types of initial defective points. Therefore, the position of the initial defective point is located, and the located position is wiped by the wiping module, and then the actual defective points of the wiped cover plate are detected by the second detection module, so as to determine whether the cover plate is a good product, thereby improving the automation of detection, reducing the misjudgment rate through secondary detection and automatic wiping, improving production efficiency, reducing scratches, secondary pollution, corner breakage and other defects caused by manual inspection, and reducing production losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a cover plate defective point detection and automatic wiping provided by the utility model;

[0024] Figure 2 The utility model provides a structural schematic diagram of the cover plate defect point detection and automatic wiping. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like 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 a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1 The present invention provides a device for detecting and automatically wiping bad spots on a cover plate, comprising:

[0030] Check the conveyor belt 100, the first detection module 200, the wiping module 300 and the second detection module 400;

[0031] The inspection conveyor belt 100 is used to convey the cover plate 500, and the cover plate 500 passes through the first inspection module 200, the wiping module 300 and the second inspection module 400 in sequence on the inspection conveyor belt 100;

[0032] The first detection module 200 is used to detect the initial defective point of the cover plate 500;

[0033] The wiping module 300 will wipe the position of the initial defective point;

[0034] The second detection module 400 is used to detect actual defective spots of the cover plate 500 after wiping.

[0035] In the process of making glass cover plates, due to process errors, it is easy to have light-transmitting points (pinholes) in the ink layer, crystal points between the coating layer and the glass, or bubble points in the glass, etc., which are all defective points of the cover plate. In the embodiment of the utility model, when the cover plate passes through the first detection device, the initial defective points on the cover plate can be obtained and analyzed by shooting, etc. For example, a defective point larger than 0.2 mm is considered to be an initial defective point. Since there may be dust or dirt on the surface of the cover plate, the initial defective points are likely to include wipeable stains. Such wipeable stains will not affect the normal use of the cover plate, so a secondary inspection is required. Through the technical solution of the embodiment of the utility model, when detecting defective points of the cover plate, the cover plate is conveyed by the detection conveyor belt, and the initial defective points on the cover plate are first detected by the first detection module. The types of initial defective points may include pinholes, crystal points, and wipeable stains, etc. At this time, it is difficult to distinguish the types of initial defective points. Therefore, the position of the initial defective point is located, and the located position is wiped by the wiping module, and then the actual defective points of the wiped cover plate are detected by the second detection module, so as to determine whether the cover plate is a good product, thereby improving the automation of detection, reducing the misjudgment rate through secondary detection and automatic wiping, improving production efficiency, reducing scratches, secondary pollution, corner breakage and other defects caused by manual inspection, and reducing production losses.

[0036] As a preferred embodiment of the present invention, the inspection conveyor belt 100 includes a backlight source 110 , and the backlight source 110 is used to illuminate the cover plate 500 from the bottom of the cover plate 500 .

[0037] Preferably, the backlight source 110 can be arranged directly below the first detection module 200 and the second detection module 400. The transmission of the backlight source through the cover plate is beneficial to the first detection module and the second detection module in detecting defective points of the cover plate.

[0038] As a preferred embodiment of the present invention, it further comprises a front light source 600, which is arranged above the cover plate 500 and is used to illuminate the front of the cover plate 500. The arrangement of the front light source facilitates the first detection module and the second detection module to detect defective points of the cover plate.

[0039] As a preferred embodiment of the present utility model, it further includes: a marking module 700, and the cover plate 500 passes through the marking module 700 after passing through the second detection module 400 on the inspection conveyor belt 100;

[0040] The marking module 700 is used to mark the cover plate 500 as a defective product after detecting an actual defective point.

[0041] The cover plate in the utility model is conveyed by a detection conveyor belt, and firstly, the initial bad points on the cover plate are detected by a first detection module. The types of the initial bad points may include pinholes, crystal points and wipeable stains, etc. The position of the initial bad points is located, so that the located positions are wiped by the wiping module, and then the actual bad points of the cover plate after wiping are detected by the second detection module, wherein the actual bad points can be obtained by comparing the results of the two inspections. If there are actual bad points that cannot be wiped off, the cover plate can be considered as a defective product. Therefore, the cover plate needs to be marked as a defective product to prevent defective products from flowing to customers.

[0042] The marking module may be an inkjet module or a laser module. In the embodiment of the utility model, an inkjet module is preferably used. After the actual bad point is detected, the word "NG" can be sprayed on the cover plate by inkjet.

[0043] As a preferred embodiment of the present invention, the wiping module 300 includes a mechanical arm 310 and a wiping head 320. When the cover plate is transferred to the wiping module, the mechanical arm is controlled to drive the wiping head according to the position of the initial defective point to wipe the position of the initial defective point.

[0044] As a preferred embodiment of the present invention, the wiping head 320 includes a soft plastic head and a dust-free cloth, and the dust-free cloth is wrapped around the outside of the soft plastic head. The material of the soft plastic head will not scratch the cover plate. In addition, by providing the dust-free cloth, it is convenient to regularly replace the new dust-free cloth.

[0045] As a preferred embodiment of the utility model, it also includes a control module, which is electrically connected to the inspection conveyor belt 100, the first detection module 200, the wiping module 300 and the second detection module 400. In addition, the control module also electrically connects the marking module, the backlight source and the front light source.

[0046] As a preferred implementation of the present invention, the first detection module 200 includes a first camera 210 and a second camera 220 .

[0047] As a preferred implementation of the present invention, the second detection module 400 is a third camera.

[0048] As a preferred implementation manner of the present utility model, the first camera, the second camera and the third camera are all high-definition cameras with 100 times magnification.

[0049] Preferably, in the embodiment of the utility model, it is set that defective points larger than 0.2 mm can be obtained. Therefore, when the high-definition camera is magnified 100 times, defective points larger than 20 mm can be obtained according to the 20 mm standard, so as to determine whether the cover is a defective product.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A cover plate defective point detection and automatic wiping device, characterized in that: include: Checking the conveyor belt, the first detection module, the wiping module, and the second detection module; The inspection conveyor belt is used to convey the cover plate, and the cover plate passes through the first inspection module, the wiping module and the second inspection module in sequence on the inspection conveyor belt; The first detection module is used to detect the initial defective point of the cover plate; The wiping module will wipe the position of the initial defective point; The second detection module is used to detect actual defective spots on the cover plate after wiping.

2. The cover plate defective point detection and automatic wiping device according to claim 1, characterized in that: The inspection conveyor belt includes a backlight source for illuminating the cover plate from a bottom of the cover plate.

3. The cover plate defective point detection and automatic wiping device according to claim 1, characterized in that: It also includes a front light source, which is arranged above the cover plate and is used to illuminate the front side of the cover plate.

4. The cover plate defective point detection and automatic wiping device according to claim 1, characterized in that: Also includes: a marking module, wherein the cover plate passes through the marking module after passing through the second detection module on the inspection conveyor belt; The marking module is used to mark the cover plate as a defective product after the actual defective point is detected.

5. The cover plate defective point detection and automatic wiping device according to claim 1, characterized in that: The wiping module comprises a mechanical arm and a wiping head.

6. The cover plate defective point detection and automatic wiping device according to claim 5, characterized in that: The wiping head comprises a soft plastic head and a dust-free cloth, and the dust-free cloth is wrapped around the outside of the soft plastic head.

7. The cover plate defective point detection and automatic wiping device according to any one of claims 1 to 6, characterized in that: It also includes a control module, which is electrically connected to the inspection conveyor belt, the first detection module, the wiping module and the second detection module respectively.

8. The cover plate defective point detection and automatic wiping device according to claim 1, characterized in that: The first detection module includes a first camera and a second camera.

9. The cover plate defective point detection and automatic wiping device according to claim 8, characterized in that: The second detection module is a third camera.

10. The cover plate defective point detection and automatic wiping device according to claim 9, characterized in that: The first camera, the second camera and the third camera are all high-definition cameras with 100 times magnification.

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