EP0071141A3 - Sliver detecting device for dividers of spinning cards - Google Patents

Sliver detecting device for dividers of spinning cards Download PDF

Info

Publication number
EP0071141A3
EP0071141A3 EP82106479A EP82106479A EP0071141A3 EP 0071141 A3 EP0071141 A3 EP 0071141A3 EP 82106479 A EP82106479 A EP 82106479A EP 82106479 A EP82106479 A EP 82106479A EP 0071141 A3 EP0071141 A3 EP 0071141A3
Authority
EP
European Patent Office
Prior art keywords
feeler
units
slivers
amplifier
signals
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.)
Withdrawn
Application number
EP82106479A
Other languages
German (de)
French (fr)
Other versions
EP0071141A2 (en
Inventor
Paolo Bobbola
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.)
Roj Electrotex SpA
Original Assignee
Roj Electrotex SpA
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 Roj Electrotex SpA filed Critical Roj Electrotex SpA
Publication of EP0071141A2 publication Critical patent/EP0071141A2/en
Publication of EP0071141A3 publication Critical patent/EP0071141A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/52—Web-dividing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

A device for checking the presence of slivers in carding machines and the like comprises: a number of piezoelectric feeler units equal to the number of slivers to be checked, and on which said slivers are simply rested and slide during their movement, said feeler units converting the mechanical vibrations produced by the movement of the slivers on said units into oscillating electrical signals; a switchable channel fed by said piezoelectric feeler units and conveying to a single output at different moments of time the signals which reach the channel at separate inputs; a single signal amplifier tuned to the frequency range produced by the feeler units; a selection circuit which chooses only one feeler unit at any given moment and connects it to the amplifier; and an actuator circuit which integrates the signal originat­ ing from the amplifier and produces a stop signal and or activates alarm means if one or more of the signals originating from the feeler units are indicative of a broken or absent sliver.
EP82106479A 1981-07-29 1982-07-19 Sliver detecting device for dividers of spinning cards Withdrawn EP0071141A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2322581 1981-07-29
IT23225/81A IT1138893B (en) 1981-07-29 1981-07-29 DEVICE FOR CHECKING THE PRESENCE OF WINDS AT THE OUTPUT OF THE SPINNING CARD DIVIDER

Publications (2)

Publication Number Publication Date
EP0071141A2 EP0071141A2 (en) 1983-02-09
EP0071141A3 true EP0071141A3 (en) 1983-08-31

Family

ID=11205089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106479A Withdrawn EP0071141A3 (en) 1981-07-29 1982-07-19 Sliver detecting device for dividers of spinning cards

Country Status (2)

Country Link
EP (1) EP0071141A3 (en)
IT (1) IT1138893B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3725904A1 (en) * 1987-08-05 1989-02-16 Schubert & Salzer Maschinen DEVICE FOR FEEDING FIBER TAPES AND METHOD FOR PRODUCING A TAPE GUIDE
CH689600A5 (en) * 1995-09-25 1999-06-30 H J Scheinhuette Entwicklungen Card with apparatus for separating foreign fibers.
CN105040189A (en) * 2015-08-14 2015-11-11 吴江福爱梁纺织有限公司 Air flow anti-clogging safety device capable of giving alarm

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE666905A (en) *
US3330007A (en) * 1966-01-04 1967-07-11 Spring Mills Inc Lapper stop motion
DE1928430A1 (en) * 1968-06-15 1969-12-18 Algemene Kunstzijde Unie Nv Method and device for the detection of disturbances in the movement of an endless material
EP0023583A1 (en) * 1979-08-03 1981-02-11 Akzo GmbH Process and apparatus for detecting differences in yarn tensions
GB2059594A (en) * 1979-09-14 1981-04-23 Mettler Soehne Maschf Piezoelectric transducer for producing a signal depending on the tensile force of a textile thread

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE666905A (en) *
US3330007A (en) * 1966-01-04 1967-07-11 Spring Mills Inc Lapper stop motion
DE1928430A1 (en) * 1968-06-15 1969-12-18 Algemene Kunstzijde Unie Nv Method and device for the detection of disturbances in the movement of an endless material
EP0023583A1 (en) * 1979-08-03 1981-02-11 Akzo GmbH Process and apparatus for detecting differences in yarn tensions
GB2059594A (en) * 1979-09-14 1981-04-23 Mettler Soehne Maschf Piezoelectric transducer for producing a signal depending on the tensile force of a textile thread

Also Published As

Publication number Publication date
EP0071141A2 (en) 1983-02-09
IT8123225A0 (en) 1981-07-29
IT1138893B (en) 1986-09-17

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

PUAL Search report despatched

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18D Application deemed to be withdrawn

Effective date: 19840808

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BOBBOLA, PAOLO