JPS5744837A - Method for detecting uncoated part of coating film using flow coater - Google Patents

Method for detecting uncoated part of coating film using flow coater

Info

Publication number
JPS5744837A
JPS5744837A JP12023780A JP12023780A JPS5744837A JP S5744837 A JPS5744837 A JP S5744837A JP 12023780 A JP12023780 A JP 12023780A JP 12023780 A JP12023780 A JP 12023780A JP S5744837 A JPS5744837 A JP S5744837A
Authority
JP
Japan
Prior art keywords
phototube
coating film
uncoated part
reflecting plate
reflective type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12023780A
Other languages
Japanese (ja)
Inventor
Toshio Mitarai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP12023780A priority Critical patent/JPS5744837A/en
Publication of JPS5744837A publication Critical patent/JPS5744837A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To detect an uncoated part of coating film automatically and accurately, by providing a reflective type phototube and a reflecting plate on both sides of the coating film of the flow coater, and moving them while maintaining corresponding relationship with each other. CONSTITUTION:A straight line between the reflective type phototube 3 and the reflecting plate 4 which are located on both sides of the coating film 2 is arranged so as to form a constant angle alpha of 90 deg. or less with respect to the coating film 2. The reflective type phototube 3 moves within the range shown by an arrow A, and the reflecting plate 4 moves within the range of an arrow B. In the case no uncoated part exsts, the light from the phototube 3 is reflected by the coating film 2, does not return to the phototube 3, and is scattered into the opposite direction. When any uncoated part exists, the light reaching the reflecting plate 4, is reflected by the plate, and returns to the phototube 3. The uncoated part is sensed by the returned light. If the phototube 3 and a conveyer 7 are linked together, the transfer of the object to be applied 8 is instantly stopped by detecting the defective part of the film, and the defective products are not manufactured.
JP12023780A 1980-08-29 1980-08-29 Method for detecting uncoated part of coating film using flow coater Pending JPS5744837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12023780A JPS5744837A (en) 1980-08-29 1980-08-29 Method for detecting uncoated part of coating film using flow coater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12023780A JPS5744837A (en) 1980-08-29 1980-08-29 Method for detecting uncoated part of coating film using flow coater

Publications (1)

Publication Number Publication Date
JPS5744837A true JPS5744837A (en) 1982-03-13

Family

ID=14781230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12023780A Pending JPS5744837A (en) 1980-08-29 1980-08-29 Method for detecting uncoated part of coating film using flow coater

Country Status (1)

Country Link
JP (1) JPS5744837A (en)

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