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Appearance inspection apparatus

A visual inspection device and technology for objects, which are applied to measurement devices, use optical devices, and perform material analysis by optical means, etc., can solve problems such as dead angles in the shooting direction, inability to perform inspections correctly, etc., to improve shutter speed and achieve visual inspection. , high-precision effect

Active Publication Date: 2011-11-23
FIRST IND INSPECTION SYST CO LTD
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  • Abstract
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Problems solved by technology

[0004] Incidentally, in the inspection using this light sectioning method, if the laser slit light is photographed from only one direction, depending on the surface shape of the object to be inspected, some places will become blind spots in the photographing direction. The reflected light of the laser light cannot enter the blind spot, so there is a problem that the inspection cannot be performed correctly

Method used

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Embodiment Construction

[0058] One of the specific embodiments of the present invention will be described below with reference to the drawings.

[0059] Such as figure 1 As shown, the visual inspection device 1 of this embodiment includes: a supply unit 3 for arranging and supplying the inspection object K; a linear conveyance unit 10 for linearly conveying the supplied inspection object K; and inspecting the surface of the conveyed inspection object K. shape and to be selected by the surface shape inspection unit 20.

[0060] In addition, the test object K in this embodiment is pharmaceuticals (tablets, capsules, etc.), food, mechanical parts, electronic parts, etc., but is not limited to them at all.

[0061] The details of each of the above-mentioned parts are described below.

[0062] [Supply Department]

[0063] The supply part 3 includes a hopper 4 for dropping a plurality of inspection objects K; a vibrating feeder 5 for advancing the inspection objects K discharged from the lower end of t...

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Abstract

The invention provides an appearance inspection apparatus which can raise a shutter speed of an area sensor camera and realize high precision inspection in an appearance inspection apparatus employing a lightsection method. The appearance inspection apparatus has conveying means for conveying an inspection object and surface shape inspecting means for inspecting the surface shape of the inspection object. The surface shape inspection means has a slit beam irradiating section for irradiating a band-shaped slit beam on the surface of the inspection object, an area sensor camera for capturing images of the slit beam, first and second optical mechanisms for receiving reflected lights of the slit beam on the downstream and upstream sides in a conveyance direction, respectively, and guiding them to the area sensor camera, and a shape judging section for judging appropriateness of the surface of the inspection object based on images captured by the area sensor camera. Optical paths of the first and second optical mechanisms allow images of the reflected lights to be formed on the area sensor camera in a state of being aligned laterally.

Description

technical field [0001] The present invention relates to a device for inspecting the appearance of pharmaceuticals (tablets, capsules, etc.), food, mechanical parts, electronic parts, etc. (hereinafter referred to as "inspection objects"). Background technique [0002] Conventionally, as an apparatus for inspecting the surface appearance of the object to be inspected, for example, an apparatus disclosed in JP 2004-317126 A is known. [0003] This device irradiates laser slit light on the surface of the inspection object, and takes an image of the irradiated laser slit light through an appropriate camera device, analyzes the obtained image according to the light section method, and obtains the surface height of the inspection object Based on the obtained height data, the related data can detect the scars or gaps existing on the surface of the inspection object, and can also calculate the volume of the inspection object. [0004] Incidentally, in the inspection using this ligh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/89
CPCG01N21/8806G01B11/2545G01N21/9508B07C5/00G01B11/24G01N21/88
Inventor 松田晋也青木広志尾江俊昭
Owner FIRST IND INSPECTION SYST CO LTD
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