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JPS57180544A - Abnormal paper detector of printing machine - Google Patents

Abnormal paper detector of printing machine

Info

Publication number
JPS57180544A
JPS57180544A JP56048100A JP4810081A JPS57180544A JP S57180544 A JPS57180544 A JP S57180544A JP 56048100 A JP56048100 A JP 56048100A JP 4810081 A JP4810081 A JP 4810081A JP S57180544 A JPS57180544 A JP S57180544A
Authority
JP
Japan
Prior art keywords
output
paper
printing machine
barreling
sheets
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.)
Granted
Application number
JP56048100A
Other languages
Japanese (ja)
Other versions
JPH0117979B2 (en
Inventor
Yoshinori Motokawa
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.)
Ryobi Ltd
Original Assignee
Ryobi 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 Ryobi Ltd filed Critical Ryobi Ltd
Priority to JP56048100A priority Critical patent/JPS57180544A/en
Publication of JPS57180544A publication Critical patent/JPS57180544A/en
Publication of JPH0117979B2 publication Critical patent/JPH0117979B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

PURPOSE:To eliminate the necessity of after-treatment of a printing machine by stopping a paper-feed action of the printing machine when two sheets are detected due to changes of received light rays in connection with a synchronous signal output circuit. CONSTITUTION:When two sheets are fed between a barreling detection projector 9C and a receiver 10C, the output voltage from the receiver 10C is lowered because the amount of transmitted light is reduced, making a comparator circuit output L, an inverter 37 output H, a proximity switch 11 output synchronous to pressure barrel rotations H, the 1C24Q output H, thereby the 1C28 output is made H, the 1C29Q output is made H, and a two sheet detection LED 30 is lit, then after a relay R132 has been on for a timer 31 time, the paper-feed unit is put off. In addition, when either one of the receivers 10a, 10b is shielded due to skew paper-feeding, the paper-feed unit is put off in the same manner. Furthermore, a barrel printing accident can be dissolved because the barreling is conducted in timing of the proximity switch 11.
JP56048100A 1981-03-30 1981-03-30 Abnormal paper detector of printing machine Granted JPS57180544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56048100A JPS57180544A (en) 1981-03-30 1981-03-30 Abnormal paper detector of printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56048100A JPS57180544A (en) 1981-03-30 1981-03-30 Abnormal paper detector of printing machine

Publications (2)

Publication Number Publication Date
JPS57180544A true JPS57180544A (en) 1982-11-06
JPH0117979B2 JPH0117979B2 (en) 1989-04-03

Family

ID=12793892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56048100A Granted JPS57180544A (en) 1981-03-30 1981-03-30 Abnormal paper detector of printing machine

Country Status (1)

Country Link
JP (1) JPS57180544A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075037U (en) * 1983-10-26 1985-05-25 株式会社吉田火工機製作所 rotary printing press
DE19617933B4 (en) * 1995-04-26 2006-01-12 Ryobi Ltd., Fuchu Method and apparatus for detecting feed faults for a printing machine
JP2010089940A (en) * 2008-10-09 2010-04-22 Nec Computertechno Ltd Medium double-feed detection device, double-feed detection method, and program

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075037U (en) * 1983-10-26 1985-05-25 株式会社吉田火工機製作所 rotary printing press
JPH0440919Y2 (en) * 1983-10-26 1992-09-25
DE19617933B4 (en) * 1995-04-26 2006-01-12 Ryobi Ltd., Fuchu Method and apparatus for detecting feed faults for a printing machine
JP2010089940A (en) * 2008-10-09 2010-04-22 Nec Computertechno Ltd Medium double-feed detection device, double-feed detection method, and program

Also Published As

Publication number Publication date
JPH0117979B2 (en) 1989-04-03

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