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Defect detection system for optical hardened film trial production line

A technology of defect detection and optical detection, which is applied in the direction of optical testing of defects/defects, material analysis through optical means, and measuring devices, etc. Problems such as high machine dependence

Pending Publication Date: 2021-12-07
NINGBO HUGHSTAR ADVANCED MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the marking system is used to mark the defects of the optical hardened film prepared by coating, due to its high dependence on the two-dimensional code inkjet printer, it is necessary to calculate the distribution of various defects on the film through complex logic operations. It is transformed into the coordinates in the unified coordinate system and then marked uniformly, and printing the two-dimensional code on the edge of the optical hardening film itself introduces new defects to the optical hardening film, so this type of marking system cannot be intuitive online It is not possible to objectively judge the degree of influence of the defect, and it is impossible to confirm whether the recorded defect is a defect of the transparent substrate, a defect of the transparent hardened layer, or the superposition of the two. There are many uncertain influencing factors. Provide a direct basis for the subsequent improvement of the optical hardening film production process

Method used

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  • Defect detection system for optical hardened film trial production line
  • Defect detection system for optical hardened film trial production line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment one: if figure 1 with figure 2 As shown, a defect detection system for an optical hardened film trial production line includes an unwinding unit 11 wound with a transparent substrate 2, a first conveying unit 12, and is used to apply the hardening coating solution to the transparent substrate 2. The coating unit 13 on the surface, the second conveying unit 14, the curing unit 15 for curing the hardened coating liquid on the transparent substrate 2 to form a transparent hardened layer, the winding unit 16, the alarm unit 17 and the control unit 18, transparent The base material 2 passes through the first conveying unit 12, the coating unit 13, the second conveying unit 14, and the curing unit 15 in order to obtain the optical hardening film 3, and the optical hardening film 3 is wound on the winding unit 16, and the unwinding unit 11 and A first optical detection device 4 and a first marking device 5 are sequentially arranged between the first conveying unit...

Embodiment 2

[0045] Embodiment 2: the rest is the same as Embodiment 1, the difference is that the third optical detection device 8 is a color industrial camera, the color of the first cross logo is different from the color of the second cross logo, and the color of the first graphic logo is different from that of the second graphic The color of the logo is different, the shape of the first graphic logo is different from that of the second graphic logo, the position of the first graphic logo overlaps or staggers with the position of the second graphic logo, and the third optical detection device 8 is used to effectively identify the position of the first cross logo color and shape, the color and shape of the first graphic mark, the color and shape of the second cross mark, and the color and shape of the second graphic mark, and send the recognized image data to the control unit 18 .

[0046] In this embodiment, the unwinding unit 11 includes a first roller shaft 111 on which the transparent...

Embodiment 3

[0050] Embodiment 3: the rest is the same as Embodiment 1, the difference is that a first storage unit 91 is arranged between the unwinding unit 11 and the first optical detection device 4, and the first storage unit 91 includes a plurality of third The roller shaft 911 and the first linear drive mechanism (not shown in the figure), the plurality of third roller shafts 911 are distributed vertically and staggeredly, and the transparent substrate 2 passes through the plurality of third roller shafts 911 in the form of serpentine material feeding, and the first The linear drive mechanism is electrically connected to the control unit 18, and the first linear drive mechanism is used to drive any row of third rollers 911 to move up and down.

[0051] In this embodiment, a second storage unit 92 is provided between the second marking device 7 and the third optical detection device 8, and the second storage unit 92 includes a plurality of fourth rollers 921 and a second linear drive m...

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Abstract

The invention discloses a defect detection system for an optical hardened film trial production line. The system comprises an unwinding unit wound with a transparent base material, a first conveying unit, a coating unit used for coating a hardening coating liquid on the lower surface of the transparent base material, a second conveying unit, a curing unit used for curing the hardening coating liquid on the transparent base material to form a transparent hardened layer, a winding unit, an alarm unit and a control unit. A first optical detection device and a first marking device are sequentially arranged between the unwinding unit and the first conveying unit in the conveying direction. A second optical detection device, a second marking device and a third optical detection device are sequentially arranged between the curing unit and the winding unit in the conveying direction. The system has the advantages that a recorded defect can be confirmed to be the defect of the transparent base material, the defect of the transparent hardened layer or the superposition of the two, and a direct basis is provided for subsequent improvement of an optical hardened film production process.

Description

technical field [0001] The invention belongs to the technical field of optical hardening film production, in particular to a defect detection system for optical hardening film trial production line. Background technique [0002] The optical hardening film generally includes a transparent substrate and a transparent hardening layer coated on the surface of the transparent substrate and formed by thermosetting and / or UV light curing. During the production process, the defects of the transparent substrate itself (such as pricks, scratches, holes, etc.), the contamination of the production raw materials, or human factors cause the transparent hardened layer to be mixed with foreign matter (such as air bubbles, agglomerated particles, mosquitoes, etc.) Defects such as scratches caused by mechanical bumps during the preparation of the optical hardening film will seriously affect the quality of the optical hardening film. [0003] In order to optimize the mass production process, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/958G01N21/88G01N21/01
CPCG01N21/958G01N21/8851G01N21/01G01N2021/888
Inventor 樊燕张永汉董红星
Owner NINGBO HUGHSTAR ADVANCED MATERIAL TECH