US3899868A - Control arrangement for yarn piecing apparatus - Google Patents

Control arrangement for yarn piecing apparatus Download PDF

Info

Publication number
US3899868A
US3899868A US489432A US48943274A US3899868A US 3899868 A US3899868 A US 3899868A US 489432 A US489432 A US 489432A US 48943274 A US48943274 A US 48943274A US 3899868 A US3899868 A US 3899868A
Authority
US
United States
Prior art keywords
strand
traversal
attenuated
formation
location
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.)
Expired - Lifetime
Application number
US489432A
Other languages
English (en)
Inventor
Jr Charles D Lee
William L Mulligan
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.)
Parks Cramer Co
Original Assignee
Parks Cramer Co
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 Parks Cramer Co filed Critical Parks Cramer Co
Priority to US489432A priority Critical patent/US3899868A/en
Priority to AR259344A priority patent/AR205825A1/es
Priority to GB25839/75A priority patent/GB1499198A/en
Priority to IT50086/75A priority patent/IT1040650B/it
Priority to FR7519252A priority patent/FR2278806A1/fr
Priority to DE19752527641 priority patent/DE2527641A1/de
Priority to ES438815A priority patent/ES438815A1/es
Priority to IN1262/CAL/75A priority patent/IN144461B/en
Priority to JP50079941A priority patent/JPS5117336A/ja
Priority to NL7507670A priority patent/NL7507670A/xx
Priority to CH841175A priority patent/CH591577A5/xx
Priority to CA230,548A priority patent/CA1037697A/en
Priority to BR7504514*A priority patent/BR7504514A/pt
Application granted granted Critical
Publication of US3899868A publication Critical patent/US3899868A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/145—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements set on carriages travelling along the machines; Warning or safety devices pulled along the working unit by a band or the like

Definitions

  • ABSTRACT A traveling unit which has instrumentalities for reinstituting attenuated strand formation at drafting systems of a textile yarn forming machine and which traverses a textile yarn forming machine having a plurality of drafting systems is controlled by an arrangement which facilitates reduction in the number of ineffective attempts at reinstitution of strand formation.
  • the control arrangement includes an active sonic detector for electrically signaling traversal of a drafting system location at which a stop member is in a retracted position and an attenuated strand detector responsive to electrostatic charges normally present at drafting system locations during attenuated strand formation.
  • the control arrangement distinguishes among three possible circumstances and initiates operation of the instrumentalities for reinstituting strand formation only as required.
  • the control arrangements heretofore used with certain tender apparatus have functioned by detecting any location along a traversed textile yarn forming machine at which normal yarn formation has been interrupted. With such detection, a cycle of operation intended to reinstitute yarn production is initiated. An attempt at reinstitution is made and, on completion of that attempt, the tender apparatus is moved from that location irrespective of success or failure in the institution of yarn production. Further, the tender apparatus is in no way responsive to a repeated interruption of yarn formation which may occur virtually immediately after reinstitution is successfully accomplished. Understandably, the number of ineffective attempts at reinstitution of strand formation can be quite high in view of these difficulties.
  • An alternate proposal for improving the efficiency of textile yarn forming operations has involved the use of stop members mounted on a textile yarn forming machine for interrupting feeding of supply strands to drafting systems in the event that formation of attenuated strands is found to have been interrupted. While it will be understood that operations in accordance with this proposal do not result in reinstitution of yarn formation, the interruption of supply strand feeding protects the textile yarn forming machine against risk of damage otherwise possibly occurring and permits reduction in or elimination of the need for attendance by a spinner. Such avoidance of human effort is obtained, however, at the cost of some reduction in production.
  • this object of the present invention is accomplished by incorporating certain features of the stop members heretofore proposed as an alternative to traveling units which reinstitute attenuated strand formation, while further providing specific detector arrangements for cooperating with the various elements of the combination.
  • Yet a further object of this invention is to detect the position of feed stop members through the use of an active sonic detector arrangement while detecting the presence or absence of attenuated strands normally formed along the textile machine by responding to electrostatic charges present during the normal strand formation, thereby obviating difficulties encountered with certain photoelectric or optical detectors.
  • the arrangement of this invention accomplishes a particularly desirable control for a traveling unit of the type described.
  • FIG. 1 is an elevation view, partly broken away, of a first combination in accordance with the present invention
  • FIG. 2 is a schematic perspective view of certain detectors and textile yarn forming machine elements involved in the combination of this invention
  • FIG. 3 is a block diagram of certain functions of a control arrangement of this invention.
  • FIG. 4 is a partially schematic drawing of certain electrical circuitry involved in the combination of this invention.
  • FIG. 5 is a view similar to FIG. 1 of a second combination in accordance with this invention.
  • FIG. 1 of the accompanying drawings shows a textile yarn forming machine, generally indicated at 10, having a plurality of drafting systems generally indicted at 11.
  • each of the drafting systems includes a series of pairs of rolls 12, 13, 14 (FIG. 2) for normally receiving a supply strand S and normally delivering an attenuated strand Y.
  • the machine has a plurality of drafting systems arranged at a series of locations, so that the drafting systems receive a corresponding series of supply strands and deliver a corresponding series of attenuated strands or yarns.
  • a plurality of stop members 16 are provided for cooperation with the machine 10.
  • Each of the stop members 16 is mounted adjacent a corresponding one of the drafting systems 11 and is selectively actuable for movement between a retracted position (FIGS. 1 and 2) spaced from a corresponding supply strand S and a strand interrupting position engaging and restraining the corresponding supply strand.
  • a retracted position FIGS. 1 and 2
  • a strand interrupting position engaging and restraining the corresponding supply strand.
  • a traveling unit generally indicated at 20 traverses the textile yarn forming machine 10 and has instrumentalities (not shown in detail in the accompanying drawings) for reinstituting attenuated strand formation at a drafting system where an attenuated strand is absent.
  • the traveling unit 20 is a traveling pneumatic cleaner supported upon the track 21 which extends over the textile machine 10 and having a blowing cleaning member 22 and a suction cleaning member 24 which depend to one side of the traveling cleaner 10.
  • the instrumentalities for reinstituting attenuated strand formation are mounted within a casing 25 disposed between the cleaning members 22, 24. Additional support for the casing 25 is provided by an auxiliary lower rail 26 extending along the lower portion of the textile machine 10.
  • an active sonic detector means is mounted on the traveling unit 20 for movement therewith along the machine 10 and for electrically signaling traversal of a drafting system location at which the corresponding one of the stop members 16 is in the retracted position.
  • the active sonic detector means comprises an ultrasonic transmitter 30 and an ultrasonic receiver 31.
  • the ultrasonic transmitter 30 By means of the ultrasonic transmitter 30, a relatively tight beam of ultrasonic energy is emitted and is directed from the traveling unit 20 toward the textile machine 10.
  • the active sonic detector means is mounted in the casing 25, for projection of the beam of ultrasonic energy in a plane perpendicular to a generally planar surface of the stop members 16. Reflection of the beam of sonic energy from a stop member 16 in the retracted position (FIG. 2)"results in reception of sonic energy by the receiver 31. Where a stop member 16 is in the strand interrupting position, the
  • a sonic detector contemplates a detector which makes use of vibrating energy close to those frequencies detected by the human ear, although preferably the frequency range is in the range denominated as ultrasonic and at frequencies above the range of the human ear.
  • These arrangements are distinct from detector arrangements which rely upon the use of a light and may be known as photoelectric, as experience has demonstrated that photoelectric detection systems may be subject to difficulties arising from depth of field and focus of optical systems which are not encountered with the use of active sonic detectors.
  • the traveling unit 20 also has mounted thereon for movement therewith along the machine 10 an attenuated strand detector generally indicated at 32 which is responsive to electrostatic charges normally present at drafting system locations during attenuated strand formation.
  • the electrostatic detector 32 electrically signals traversal of a drafting system location at which normal attenuated strand formation is occurring.
  • the electrostatic detector 32 is mounted within the casing 25 at a location adjacent the path followed by attenuated strands Y in movement from the delivery rolls 12 of the drafting systems to bobbins on which the strands are wound.
  • the electrostatic detector 32 comprises an electrically floating detector rod 34 and circuitry (schematically shown in FIG. 4) for responding to fluctuation in electrostatic charges near the rod 34, all as described more fullyhereinafter.
  • the general cooperation between the electrostatic end detector 32 and the ultrasonic detector means may be understood from the block diagram of FIG. 3, in which it is indicated that electrical signals generated by the detectors cooperate in initiating a controlled function (such as that accomplished by the mechanism illustrated in FIGS. 22, 23 of Lee, Jr., et al U.S. Pat. No. 3,486,319 and described in that patent with reference to those figures).
  • FIG. 4 A more specific understanding of the manner in which the detector means cooperate may be gained from description with reference to FIG. 4. As is there shown, fluctuation in electrostatic charges near the rod 34 are applied through PET and other transistors and associated resistors and capacitors to provide an electrical output to a bistable multivibrator or flip-flop 35 which, together with a gate device 36, forms a logic circuit means.
  • the logic circuit means is electrically connected with the receiver 31 of the active sonic detector and with the electrostatic detector 32 for distinguishing among three possible conditions.
  • the logic circuit means distinguishes among; (1)-signaled traversal of a location at which the corresponding stop member 16 is in the retracted position and strand formation is occurring; (2) signaled traversal of a location at which the stop member 16 is in the retracted position and strand formation has been interrupted (as in an end down condition); and (3) traversal of a location at which the stop member 16 is in the strand interrupting position.
  • the logic circuit means preferably is arranged to provide an output only in instances of the second of the listed conditions. More particularly, reflection of ultrasonic energy from a stop member 16 to the receiver 31 (FIG. 4) generates an electrical signal which, when passed through an amplifier 38, is effective to energize coil 39 of a relay.
  • the relay coil 39 when energized, closes an associated contact 40 which applies an electrical signal to the multivibrator 35 and gate device 36.
  • the multivibrator device is set to a first condition and is prepared to receive a signal through the electrostatic detector 32 in the event that normal attenuated yarn formation is proceeding.
  • an electrical signal derived from the exposure of the rod 34 to electrostatic charges pass to the multivibrator 35, resetting the multivibrator to an alternate condition and removing from the gate device the signal which would otherwise be passed through the multivibrator 35.
  • the gate device 36 is selected to be of a type which passes an output signal only in the instances that two signals are applied thereto (an and gate).
  • the electrostatic detector 32 may be employed to check proper reinstitution of yarn formation prior to release of the traveling unit 20 for continuing traversal of the textile machine 10.
  • the control for the instrumentalities which reinstitute yarn formation would be arranged to reset the detectors and logic circuit on completion of a cycle of operation of the instrumentalities. With resetting of the detectors, while the stop member 16 continues in the retracted position, the presence of electrostatic charges following successful reinstitution of yarn formation would preclude passage of a signal through the logic circuit means and would release the traveling unit 20 for continued traversal of the textile machine 10. In the event of an unsuccessful attempt at reinstitution of yarn formation, electrostatic charges indicative of attenuated strand formation would be absent, and a successive cycle of operation of the instrumentalities could be initiated.
  • control arrangement would pass a signal to a feed stop actuation device 41, supplied with air under pressure through a conduit 42 tion would be assured of falling into the third of the distinguished conditions described hereinabove and no further attempts at reinstitution of yarn formation at that drafting system location would be made until such time as an operator attending the machine corrected the difficulty which caused the traveling unit to fail. It is in this manner that the number of ineffective attempts at reinstitution of strand formation is reduced in accordance with this invention.
  • traveling unit 20' a different variety of traveling unit, indicated generally at 20', has been illustrated in FIG. 5. Prime notation has been used to identify portions of the combination illustrated in FIG. 5 corresponding with portions described with reference to FIGS. 14, in order to aid understanding of the application of this invention to such an alternative traveling unit 20'.
  • the traveling unit 20 is supported by upper'and lower rails 21', 26' and is provided with an active sonic detector means having a transmitter 30 and a receiver 31 and with an attenuated strand detector means 32.
  • the traveling unit 20' is equipped with an appropriate means 41' for remotely actuating feed stop members 16 as necessary in accordance with this invention.
  • a textile yarn forming machine having a plurality of drafting systems arranged at a series of locations for normally receiving a corresponding series of supply strands and normally delivering a corresponding series of attenuated strands and a plurality of stop members, each mounted adjacent a corresponding one of said drafting systems and selectively actuable for movement between a retracted position spaced from a corresponding supply strand and a strand interrupting position engaging and restraining the corresponding supply strand and thereby for interrupting passage of the restrained supply strand into the-corresponding drafting system, and
  • a traveling unit traversing the machine and having instrumentalities for reinstituting attenuated strand formation at a drafting system where an attenuated strand is absent
  • active sonic detector means mounted on said traveling unit for movement therewith along said machine and for electrically signaling traversal of a drafting system location at which the corresponding one of said stop members is in the retracted position
  • Attenuated strand detector means mounted on said traveling unit for movement therewith along said machine and responsive to electrostatic charges normally present at drafting system locations during attenuated strand formation for electrically signaling traversal of a drafting system location at which normal attenuated strand formation is occurring,
  • logic circuit means electricallly connected with said sonic detector means and said strand detector means for distinguishing among signaled traversal of a location at which said corresponding member is in the retracted position and strand formation is occurring, signaled traversal of a location at which said corresponding member is in the retracted position and strand formation has been interrupted, and traversal of a location at which said corresponding member is in the strand interrupting position, and
  • control means for responding to said logic circuit means distinguishing signaled traversal of a location at which said corresponding member is retracted and strand formation has been interrupted by stopping traversal of said machine by said traveling unit and initiating operation of said instrumentalities for reinstituting attenuated strand formation and for responding to said logic circuit distinguishing either of the other traversals by continuing traversal of said machine by said traveling unit.
  • a method of operating a traveling unit which has instrumentalities for reinstituting attenuated strand formation at drafting systems of a textile yarn forming machine, the machine having a plurality of drafting systems arranged at a series of locations for normally receiving a corresponding series of supply strands and normally delivering a corresponding series of attenuated strands and having a plurality of stop members each mounted adjacent a corresponding one of said drafting systems and selectively actuable for movement between a retracted position spaced from the corresponding supply strand and a strand interrupting position engaging and restraining the corresponding supply strand and thereby for interrupting passage of the restrained supply strand into the corresponding drafting system, the method facilitating reduction in the number of ineffective attempts at reinstitution of strand formation and comprising the steps of:
  • a method according to claim 4 further comprises the steps of electrically signaling successful reinstitution of attenuated strand formation and repeating operation of the instrumentalities for reinstituting formation of attenuated strands in the event of failure to successfully reinstitute strand formation.
  • Apparatus according to claim 2 further comprising stop member actuation means for directing a flow of air against a stop member and thereby for selectively blowing the same from retracted position to strand interrupting position, and said stop member actuation means being operatively connected to said control means and responsive thereto for emitting an actuating air flow upon ascertainment that an attempted reinstitution of attenuated strand formation failed.
  • a method according to claim 5 further comprising the steps of emitting an actuating air flow in the event of failure to successfully reinstitute strand formation and directing the air flow against the corresponding stop for selectively blowing the same from retracted position to strand interrupting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US489432A 1974-07-17 1974-07-17 Control arrangement for yarn piecing apparatus Expired - Lifetime US3899868A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US489432A US3899868A (en) 1974-07-17 1974-07-17 Control arrangement for yarn piecing apparatus
AR259344A AR205825A1 (es) 1974-07-17 1975-01-01 Disposicion textil formadora de hilos
GB25839/75A GB1499198A (en) 1974-07-17 1975-06-17 Control arrangement for yarn piecing apparatus in textile yarn forming machines
IT50086/75A IT1040650B (it) 1974-07-17 1975-06-17 Perfezionamento nelle disposizioni di controllo per apparecchi di formatura di filati
FR7519252A FR2278806A1 (fr) 1974-07-17 1975-06-19 Procede et dispositif de commande pour appareil de rattachage de fil
DE19752527641 DE2527641A1 (de) 1974-07-17 1975-06-20 Verfahren zum betreiben eines wandergeraetes mit einer fadenandrehvorrichtung und textilgarn-spinnanordnung zur durchfuehrung des verfahrens
ES438815A ES438815A1 (es) 1974-07-17 1975-06-24 Metodo de control de maquinas textiles de formacion de hilo y perfeccionamientos en las instalaciones de formacion de hilo textil.
IN1262/CAL/75A IN144461B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-07-17 1975-06-26
JP50079941A JPS5117336A (en) 1974-07-17 1975-06-26 Itotsugisochino zeyosochi
NL7507670A NL7507670A (nl) 1974-07-17 1975-06-27 Werkwijze en inrichting voor het spinnen van garen, alsmede het product van de werkwijze.
CH841175A CH591577A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-07-17 1975-06-27
CA230,548A CA1037697A (en) 1974-07-17 1975-06-30 Control arrangement for yarn piecing apparatus
BR7504514*A BR7504514A (pt) 1974-07-17 1975-07-16 Aperfeicoamento em processo para operar uma unidade corredica e em disposicao formadora de fio textil para a realizacao do dito processo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US489432A US3899868A (en) 1974-07-17 1974-07-17 Control arrangement for yarn piecing apparatus

Publications (1)

Publication Number Publication Date
US3899868A true US3899868A (en) 1975-08-19

Family

ID=23943834

Family Applications (1)

Application Number Title Priority Date Filing Date
US489432A Expired - Lifetime US3899868A (en) 1974-07-17 1974-07-17 Control arrangement for yarn piecing apparatus

Country Status (13)

Country Link
US (1) US3899868A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5117336A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AR (1) AR205825A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7504514A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1037697A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH591577A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2527641A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES438815A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2278806A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1499198A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IN (1) IN144461B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1040650B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7507670A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043107A (en) * 1973-07-06 1977-08-23 Leuze-Electronic Kg Arrangement for automatically controlling the travel speed of yarns, filaments, and the like in machines processing the same
DE2857592A1 (de) * 1977-06-23 1981-02-05 Parks Cramer Co Fadenbruch-feststellvorrichtung mit mehreren sensoren
US4419861A (en) * 1980-10-17 1983-12-13 Murata Kikai Kabushiki Kaisha Spinning apparatus provided with knotting truck
US4481763A (en) * 1981-06-17 1984-11-13 Veb Kombinat Wolle Und Seide Arrangement of electrodes for monitoring thread breakage in ring spinning machines
US4676057A (en) * 1985-02-06 1987-06-30 Murata Kikai Kabushiki Kaisha Spinning machine
EP0251268A3 (en) * 1986-07-03 1988-03-16 Zinser Textilmaschinen Gmbh Device for spinning yarns
US4788818A (en) * 1986-07-03 1988-12-06 Zinser Textilmaschinen Gmbh Process and apparatus for reducing the breakdown quota or rate of stopping devices in a spinning or twisting machine
US5385008A (en) * 1991-09-20 1995-01-31 Nippon Selen Co., Ltd. Yarn break detecting device for spinning machine
CN102747462A (zh) * 2012-07-31 2012-10-24 浙江日发纺织机械股份有限公司 自由端纺纱机接头小车

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821632U (ja) * 1981-08-04 1983-02-10 株式会社　栗本鉄工所 工事用手摺

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486319A (en) * 1968-06-24 1969-12-30 Parks Cramer Co Apparatus and method for detecting,piecing-up and reporting ends down on spinning machines
US3498039A (en) * 1968-07-29 1970-03-03 Leesona Corp Control system
US3623310A (en) * 1970-05-25 1971-11-30 Parks Cramer Co Electrostatic charge sensitive ends down detecting apparatus and method
US3626680A (en) * 1969-12-15 1971-12-14 Leesona Corp Strand handling apparatus
US3638412A (en) * 1970-05-01 1972-02-01 Leesona Corp Textile machine
US3659409A (en) * 1969-10-14 1972-05-02 Parks Cramer Co Electric circuit means for textile strand ends down detecting apparatus
US3672143A (en) * 1970-10-20 1972-06-27 Leesona Corp Doffing apparatus and method
US3726072A (en) * 1971-11-23 1973-04-10 Parks Cramer Co Apparatus and method for interrupting textile yarn forming operations
US3754992A (en) * 1971-05-07 1973-08-28 Parks Cramer Co Traveling pneumatic cleaner and method
US3841076A (en) * 1971-11-23 1974-10-15 Parks Cramer Co Roving feed stop device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4880061A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-01-28 1973-10-26

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3486319A (en) * 1968-06-24 1969-12-30 Parks Cramer Co Apparatus and method for detecting,piecing-up and reporting ends down on spinning machines
US3498039A (en) * 1968-07-29 1970-03-03 Leesona Corp Control system
US3659409A (en) * 1969-10-14 1972-05-02 Parks Cramer Co Electric circuit means for textile strand ends down detecting apparatus
US3626680A (en) * 1969-12-15 1971-12-14 Leesona Corp Strand handling apparatus
US3638412A (en) * 1970-05-01 1972-02-01 Leesona Corp Textile machine
US3623310A (en) * 1970-05-25 1971-11-30 Parks Cramer Co Electrostatic charge sensitive ends down detecting apparatus and method
US3672143A (en) * 1970-10-20 1972-06-27 Leesona Corp Doffing apparatus and method
US3754992A (en) * 1971-05-07 1973-08-28 Parks Cramer Co Traveling pneumatic cleaner and method
US3726072A (en) * 1971-11-23 1973-04-10 Parks Cramer Co Apparatus and method for interrupting textile yarn forming operations
US3841076A (en) * 1971-11-23 1974-10-15 Parks Cramer Co Roving feed stop device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043107A (en) * 1973-07-06 1977-08-23 Leuze-Electronic Kg Arrangement for automatically controlling the travel speed of yarns, filaments, and the like in machines processing the same
DE2857592A1 (de) * 1977-06-23 1981-02-05 Parks Cramer Co Fadenbruch-feststellvorrichtung mit mehreren sensoren
US4419861A (en) * 1980-10-17 1983-12-13 Murata Kikai Kabushiki Kaisha Spinning apparatus provided with knotting truck
US4481763A (en) * 1981-06-17 1984-11-13 Veb Kombinat Wolle Und Seide Arrangement of electrodes for monitoring thread breakage in ring spinning machines
US4676057A (en) * 1985-02-06 1987-06-30 Murata Kikai Kabushiki Kaisha Spinning machine
EP0251268A3 (en) * 1986-07-03 1988-03-16 Zinser Textilmaschinen Gmbh Device for spinning yarns
US4788818A (en) * 1986-07-03 1988-12-06 Zinser Textilmaschinen Gmbh Process and apparatus for reducing the breakdown quota or rate of stopping devices in a spinning or twisting machine
US5385008A (en) * 1991-09-20 1995-01-31 Nippon Selen Co., Ltd. Yarn break detecting device for spinning machine
CN102747462A (zh) * 2012-07-31 2012-10-24 浙江日发纺织机械股份有限公司 自由端纺纱机接头小车
CN102747462B (zh) * 2012-07-31 2015-09-16 浙江日发纺织机械股份有限公司 自由端纺纱机接头小车

Also Published As

Publication number Publication date
JPS5117336A (en) 1976-02-12
CH591577A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-09-30
FR2278806A1 (fr) 1976-02-13
IT1040650B (it) 1979-12-20
GB1499198A (en) 1978-01-25
ES438815A1 (es) 1977-01-16
BR7504514A (pt) 1976-07-06
DE2527641A1 (de) 1976-02-05
CA1037697A (en) 1978-09-05
IN144461B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-05-06
NL7507670A (nl) 1976-01-20
AR205825A1 (es) 1976-06-07
FR2278806B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-02-24

Similar Documents

Publication Publication Date Title
US3899868A (en) Control arrangement for yarn piecing apparatus
US3902308A (en) Optical sensing system for textile apparatus
US5083298A (en) Monitoring apparatus
EP0302214B1 (en) Automat location system
US3530690A (en) Yarn inspection apparatus
GB2173294A (en) Determining the location of defects present in flat glass
US3413794A (en) Pneumatic sensing system
US3734422A (en) Apparatus for monitoring yarn at winders
EP0568762A1 (en) Electronic feeder apparatus for automatically controlling the tension of the yarn in a knitting machine and textile machines in general
CN113727928A (zh) 在纱线制造纺织机的工作站处对纱线进行非接触式光学检测的方法、纱线光学传感器和纺织机
US3659409A (en) Electric circuit means for textile strand ends down detecting apparatus
US4848417A (en) Monitor device for a weft yarn store and a method of operating a weft yarn store
US3740937A (en) End down detecting means for automatic yarn piecing apparatus
US3500063A (en) Scanning laser obstruction detection system utilizing a retroreflective strip
US4112665A (en) Plural sensor ends down detecting apparatus
US4823543A (en) Apparatus for the spinning of yarn
US4319235A (en) Yarn-piecing and cleaning system for a spinning machine
US3568425A (en) Device for reducing yarn wastage in a textile machine
US3680297A (en) Yarn piecing apparatus data communicating means and method
US3595004A (en) Textile strand ends down detecting apparatus with automatic resetting means
US3510862A (en) Signalling means for use with a moving tender
US5987868A (en) Monitoring of core mounting for a roving frame
KR940002508B1 (ko) 코드로 보강된 타이어직물의 결함탐지기
US3623310A (en) Electrostatic charge sensitive ends down detecting apparatus and method
JPH03124824A (ja) 紡績機を運転する方法及び紡績機を運転するためのサービスロボット