JPS57131658A - Method for detecting deceleration point of unwinder - Google Patents

Method for detecting deceleration point of unwinder

Info

Publication number
JPS57131658A
JPS57131658A JP1496581A JP1496581A JPS57131658A JP S57131658 A JPS57131658 A JP S57131658A JP 1496581 A JP1496581 A JP 1496581A JP 1496581 A JP1496581 A JP 1496581A JP S57131658 A JPS57131658 A JP S57131658A
Authority
JP
Japan
Prior art keywords
coil diameter
unwinder
calculated
calculator
travel distance
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
JP1496581A
Other languages
Japanese (ja)
Inventor
Makoto Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1496581A priority Critical patent/JPS57131658A/en
Publication of JPS57131658A publication Critical patent/JPS57131658A/en
Pending 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
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to predetermined lengths of webs

Abstract

PURPOSE:To enable to detect a deceleration point accurately even in the case where a sliding is present between an unwinder and a coiled belt shaped material, by a method wherein the travel distance of a belt-shaped material is calculated from the traveling velocity of the material and the residual length is calculated. CONSTITUTION:A travel distance calculator 20 is fed with the traveling velocity v of the belt shaped material 2 calculated by a traveling velocity calculator 16, and by using the formula l2= o<t>vdt, it calculates the actual travel distance l2 by which the material 2 is unwound from the unwinder 1 after it has received from a coil diameter detector 19 a signal indicating that the coil diameter on the rewinder 1 has become not larger than a predetermined value. Then, a residual length calculator 15a is fed with an output of the coil diameter D2 from the detector 19 and with an output of said distance l2, and calculates the residual length l by which the material is wound on the rewinder 1 between the coil diameter at present and the coil diameter D0 with which the material should be stopped or the deceleration should be finished.
JP1496581A 1981-02-05 1981-02-05 Method for detecting deceleration point of unwinder Pending JPS57131658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1496581A JPS57131658A (en) 1981-02-05 1981-02-05 Method for detecting deceleration point of unwinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1496581A JPS57131658A (en) 1981-02-05 1981-02-05 Method for detecting deceleration point of unwinder

Publications (1)

Publication Number Publication Date
JPS57131658A true JPS57131658A (en) 1982-08-14

Family

ID=11875683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1496581A Pending JPS57131658A (en) 1981-02-05 1981-02-05 Method for detecting deceleration point of unwinder

Country Status (1)

Country Link
JP (1) JPS57131658A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107718A (en) * 1989-04-24 1992-04-28 Kabushiki Kaisha Komatsu Seisakusho Combined hydraulic motor and speed reducer
JP2009067577A (en) * 2007-09-18 2009-04-02 Nippon Reliance Kk Roll winding diameter detecting method, roll controlling method, and roll controlling device
EP3696104A1 (en) * 2019-02-18 2020-08-19 Giesecke+Devrient Currency Technology GmbH Device for packaging sheet goods

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107718A (en) * 1989-04-24 1992-04-28 Kabushiki Kaisha Komatsu Seisakusho Combined hydraulic motor and speed reducer
JP2009067577A (en) * 2007-09-18 2009-04-02 Nippon Reliance Kk Roll winding diameter detecting method, roll controlling method, and roll controlling device
EP3696104A1 (en) * 2019-02-18 2020-08-19 Giesecke+Devrient Currency Technology GmbH Device for packaging sheet goods
US11518563B2 (en) 2019-02-18 2022-12-06 Giesecke+Devrient Currency Technology Gmbh Apparatus for packaging sheet material

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