JPS5772579A - Threadlike material travelling detector - Google Patents

Threadlike material travelling detector

Info

Publication number
JPS5772579A
JPS5772579A JP14763980A JP14763980A JPS5772579A JP S5772579 A JPS5772579 A JP S5772579A JP 14763980 A JP14763980 A JP 14763980A JP 14763980 A JP14763980 A JP 14763980A JP S5772579 A JPS5772579 A JP S5772579A
Authority
JP
Japan
Prior art keywords
threadlike
travelling
dielectric constant
signal
electrode
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
JP14763980A
Other languages
Japanese (ja)
Inventor
Shozo Makino
Seiji Otobe
Misao Hashiba
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.)
Nippon Selen Co Ltd
Original Assignee
Nippon Selen 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 Nippon Selen Co Ltd filed Critical Nippon Selen Co Ltd
Priority to JP14763980A priority Critical patent/JPS5772579A/en
Publication of JPS5772579A publication Critical patent/JPS5772579A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make it possible to surely detect the breaking of a thread in noncontact in a method of detecting the travelling of a threadlike material on a, for example, spinning stage, by establishing an electrostatic field between a charging electrode and a signal electrode.
CONSTITUTION: A threadlike material 1 travels through a gap between a charging electrode 2 and a signal electrode 3 which are opposed together and are electrically connected through a resistor 5 having a high resistance to a DC source 4. Supporting that the voltage of the DC source 4 is "V" and the dielectric constant of the threadlike member 1 is "E", the electric charge "Q" charged between the electrodes 2, 3 is determined by Q=K.V.E. Irregularity in the diameter or density of the threadlike member 1 causes fluctuations of the dielectric constant E which produce, at the junction point of the signal electrode 3 and the high resistance resistor 5, variations in electric potential. The variations is taken out as a thread travelling signal and is indicated on a display device 7 through an amplifier 6. When the travelling of the threadlike member 1 is suspended due to the breaking thereof, the dielectric constant becomes unchanged, thereby the travelling signal disappears.
COPYRIGHT: (C)1982,JPO&Japio
JP14763980A 1980-10-23 1980-10-23 Threadlike material travelling detector Pending JPS5772579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14763980A JPS5772579A (en) 1980-10-23 1980-10-23 Threadlike material travelling detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14763980A JPS5772579A (en) 1980-10-23 1980-10-23 Threadlike material travelling detector

Publications (1)

Publication Number Publication Date
JPS5772579A true JPS5772579A (en) 1982-05-06

Family

ID=15434878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14763980A Pending JPS5772579A (en) 1980-10-23 1980-10-23 Threadlike material travelling detector

Country Status (1)

Country Link
JP (1) JPS5772579A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019461A1 (en) * 1989-07-04 1991-01-17 Benninger Ag Maschf THREAD GUARD FOR A TEXTILE MACHINE
JP2002538060A (en) * 1999-03-03 2002-11-12 イーロ パテント アクチェンゲゼルシャフト How to monitor the running / stopped state of yarn

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5034659A (en) * 1973-07-31 1975-04-03
JPS53103039A (en) * 1977-02-10 1978-09-07 Zellweger Uster Ag Electrostatic capacity yarn monitor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5034659A (en) * 1973-07-31 1975-04-03
JPS53103039A (en) * 1977-02-10 1978-09-07 Zellweger Uster Ag Electrostatic capacity yarn monitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019461A1 (en) * 1989-07-04 1991-01-17 Benninger Ag Maschf THREAD GUARD FOR A TEXTILE MACHINE
JP2002538060A (en) * 1999-03-03 2002-11-12 イーロ パテント アクチェンゲゼルシャフト How to monitor the running / stopped state of yarn

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