Detection system for detecting transparent packaging film with patterns

A technology of transparent packaging and detection system, applied in the field of detection, can solve problems affecting detection accuracy and effect, etc., and achieve the effects of improving detection effect, reducing production cost, and improving detection accuracy

Inactive Publication Date: 2012-07-18
BEIJING LUSTER LIGHTTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the white diffuser will also participate in imaging under foreground lighting, and the transparent area is affected by the white diffuser, which affects the detection accuracy and effect

Method used

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  • Detection system for detecting transparent packaging film with patterns
  • Detection system for detecting transparent packaging film with patterns

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Embodiment Construction

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0019] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or position shown in the drawings The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or im...

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PUM

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Abstract

The invention discloses a detection system for detecting a transparent packaging film with patterns. The detection system comprises an imaging unit, a foreground light source, a backlight source and a shading piece, wherein the imaging unit is arranged above the transparent packaging film and used for imaging the patterns and a transparent area of the transparent packaging film; the foreground light source is arranged above the transparent packaging film and used for illuminating the transparent packaging film to image the patterns; the backlight source is arranged below the transparent packaging film, provided with a white diffusing panel opposite to the transparent packaging film and used for illuminating the transparent packaging film to image the transparent area; and the shading piece is arranged above the white diffusing panel, positioned below the transparent packaging film and used for preventing the foreground light source from projecting the patterns on the white diffusing panel. According to the detection system disclosed by the embodiment of the invention, imaging interference of the foreground light source and the white diffusing panel can be avoided, and the detection precision and the detection effect are improved.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a detection system for detecting transparent packaging films with patterns. Background technique [0002] Transparent packaging film (that is, transparent packaging material) is the most common material in the packaging of daily necessities. Its production process is to print product-related patterns on the transparent film. Visual inspection is to install an optical imaging unit and an image processing unit on a printing machine or a rewinding machine to collect real-time images of high-speed transparent packaging materials, identify defects, and provide a defect database to track and process detected defects. Detection Technology. [0003] The traditional inspection system mainly includes an imaging unit, a foreground light source and a background light source. The illumination of the foreground light source is used to image the printed pattern, and the background light illu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/896G01N21/898
Inventor 齐继芳杨艺姚毅陆宽赵严
Owner BEIJING LUSTER LIGHTTECH
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