JPS5729438A - Method and apparatus for measuring outer diameter of extrudate - Google Patents

Method and apparatus for measuring outer diameter of extrudate

Info

Publication number
JPS5729438A
JPS5729438A JP10533980A JP10533980A JPS5729438A JP S5729438 A JPS5729438 A JP S5729438A JP 10533980 A JP10533980 A JP 10533980A JP 10533980 A JP10533980 A JP 10533980A JP S5729438 A JPS5729438 A JP S5729438A
Authority
JP
Japan
Prior art keywords
extrudate
signal
outer diameter
measuring
video signal
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
JP10533980A
Other languages
Japanese (ja)
Inventor
Chikahisa Hayashi
Katsuhiro Suhara
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.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei Co 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 Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP10533980A priority Critical patent/JPS5729438A/en
Publication of JPS5729438A publication Critical patent/JPS5729438A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92123—Diameter or circumference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To precisely measure the outer diameter of an extrudate using a television camera by which measurement is simple and whose maintenance and control are simple, by televising the horizontally placed extrudate, and converting the video signal as light and dark information into the outer diameter of the extrudate. CONSTITUTION:The extrudate 1 that is horizontally placed in front of a light source 3 is televised by the television camera 2, the video signal outputted from the camera 2 is sent as a photoelectric signal to a photoelectric signal circuit 4, based on a vertical synchronous signal of the video signal the measurable range is made into a pulse signal at every cycle by a measuring range setting circuit 7, a measuring position setting circuit 8 outputs a timing pulse signal 9 having a certain interval and a prescrbed width based on the horizontal synchronous signal of the video signal, these signals are inputted into a measuring pulse signal generating circuit 11 so that their AND logic values are converted into measuring pulse signals, and the number of the measuring pulse signals are converted into the value of the outer diameter of the extrudate 1 by a frequency dividing circuit 12.
JP10533980A 1980-07-31 1980-07-31 Method and apparatus for measuring outer diameter of extrudate Pending JPS5729438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10533980A JPS5729438A (en) 1980-07-31 1980-07-31 Method and apparatus for measuring outer diameter of extrudate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10533980A JPS5729438A (en) 1980-07-31 1980-07-31 Method and apparatus for measuring outer diameter of extrudate

Publications (1)

Publication Number Publication Date
JPS5729438A true JPS5729438A (en) 1982-02-17

Family

ID=14404968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10533980A Pending JPS5729438A (en) 1980-07-31 1980-07-31 Method and apparatus for measuring outer diameter of extrudate

Country Status (1)

Country Link
JP (1) JPS5729438A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6180004A (en) * 1984-09-28 1986-04-23 Toho Denshi Kogyo Kk Dimension measurement of article
US4663097A (en) * 1984-08-15 1987-05-05 Imperial Chemical Industries, Plc. Method and apparatus for controlling dynamic instability in axially moving form
US4974077A (en) * 1988-08-05 1990-11-27 Bridgestone Corporation Apparatus for detecting edge position of elongated article
US5258148A (en) * 1991-06-03 1993-11-02 Windmoller & Holscher Process for controlling the degree of orientation of tubular films

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492561A (en) * 1972-04-17 1974-01-10
JPS512388A (en) * 1974-06-24 1976-01-09 Mitsubishi Electric Corp HANDOTA ISOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492561A (en) * 1972-04-17 1974-01-10
JPS512388A (en) * 1974-06-24 1976-01-09 Mitsubishi Electric Corp HANDOTA ISOCHI

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4663097A (en) * 1984-08-15 1987-05-05 Imperial Chemical Industries, Plc. Method and apparatus for controlling dynamic instability in axially moving form
JPS6180004A (en) * 1984-09-28 1986-04-23 Toho Denshi Kogyo Kk Dimension measurement of article
US4974077A (en) * 1988-08-05 1990-11-27 Bridgestone Corporation Apparatus for detecting edge position of elongated article
US5258148A (en) * 1991-06-03 1993-11-02 Windmoller & Holscher Process for controlling the degree of orientation of tubular films

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