US3364669A - Shut off deivce for stretch twist machines - Google Patents

Shut off deivce for stretch twist machines Download PDF

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Publication number
US3364669A
US3364669A US536003A US53600366A US3364669A US 3364669 A US3364669 A US 3364669A US 536003 A US536003 A US 536003A US 53600366 A US53600366 A US 53600366A US 3364669 A US3364669 A US 3364669A
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US
United States
Prior art keywords
feeling
thread
shut
disc
feeler
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
US536003A
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English (en)
Inventor
Schippers Heinz
Treptow Heinz
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.)
Oerlikon Barmag AG
Original Assignee
Barmag Barmer Maschinenfabrik AG
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 Barmag Barmer Maschinenfabrik AG filed Critical Barmag Barmer Maschinenfabrik AG
Application granted granted Critical
Publication of US3364669A publication Critical patent/US3364669A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/003—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to winding of yarns around rotating cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention is directed to a shut off device for stretch twist machines.
  • the device operates automatically where lapping occurs in the operation of stretch twist machines for artificial threads especially chemical threads of heavy denier.
  • a number of devices are known in the textile machinery art which detect thread breakages or lapping (winder formation) by means of special feeling means. These devices release a switching means which is capable of stopping the machine or the affected twisting or perning head.
  • a roller has been proposed which is positioned in the dead space between the godet and deflection roller, which when a winder of a given thickness forms on the godet is caused to rotate and, in the process, actuates the switching device.
  • This system operates only where the winder is formed on the godet but not where lapping or winder formation occurs on the deflection roller. The latter problem, however, is encountered just as frequently as winder formation on the godet.
  • the winder also has to reach a considerable thickness before the shut off device responds. It has also been proposed to place a so-called thread watcher outside the dead space between the godet and deflection roller.
  • the thread watcher includes two wire bows of a lever type which extend into the dead space and which detect possible winder formation both on the godet and on the deflection roller. The function of such wire bows, however, has proven to be uncertain especially in rough practical operation.
  • a disc or platelike device as a feeler or detector means.
  • the disc is rotatable on an axis arranged substantially in its plane or parallel to its plane.
  • the feeling edge or edges of the disc-in secant position to the rotating thread running surface or surfacesor the feeling surface or surfaces of the discin tangential position with respect to the rotating thread running surface or surfaces are arranged at a preselected small, equal spacing from the thread running surfaces along their axial length.
  • a setting (adjusting) member is also carried on the feeler which, on rotary movement of the responding feeling disc, releases a mechanical, electrical, magnetic or hydraulic shut off switching device. It is advantageous to place the feeling disc with its axis of rotation between the godet and deflection roller entwined in common by the running thread and in the dead space bounded by the thread.
  • the feeling disc can be substantially level or can also be curved along its axis of rotation. Because the roller axes are not parallel to one another it will generally be executed somewhat twisted on its one feeling side.
  • the feeling disc must be arranged with its feeling sides and with its axis of rotation in such a way in the dead space between the rollers that all lappings (winder formations) produce a feeling disc deflection in the same direction of rotation.
  • the setting member be arranged shiftably and fixedly on the feeling disc in turning direction and lie with such a lever length against a switching member situated outside the dead space, which length is greater than the spacings of the disc feeling places from the turning axis.
  • FIGURE 1 shows the overall arrangement of the shut off device and is partly in section
  • FIGURE 2 shows the disc feeler
  • FIGURE 3 is a diagrammatic view of the system during undisturbed normal operations.
  • thread I is entwined several times around the driven godet 2 and loose deflection roller 3.
  • base plate 4 which carries the transmitter elements of the shut off device, there is turnably borne the feeling disc consisting essentially of carrier tube 6 on which are mounted feeling blades 7 and 8.
  • Plate 4 is attached to the machine frame in such a manner (not represented in detail) that the feeler is situated between the godet and the deflection roller within the space bounded by the thread course, and the free edges of the two feeling blades 7 and 8 are equally far removed from the running surfaces of the godet 2 and of the deflection roller 3.
  • the contours of the two feeling blades are adapted to those of the thread running members, there being simultaneously taken into account the oblique position of the deflection roller axis.
  • Leaf spring 9 can be used as the setting member of the feeling disc.
  • One end of the leaf spring is wrapped around carrier tube 6 and is fastened to the tube by means of a clamping connection, for example a clip 10 with a screw 11.
  • a clamping connection for example a clip 10 with a screw 11.
  • the switching device to be released by the setting member for the shutting oif may be constructed, for example, as a microswitch 12, likewise attached to base plate 4, with switching push rod 13, which is actuated in extremely short switching paths by the other end of leaf spring 9.
  • the electrical connection lines are connected to the microswitch in a known manner.
  • the individual elements of the shut off device may also be attached, instead of to a base plate, individually to the machine frame.
  • pin carrying the feeling disc is securely screwed into base plate 4 or into the machine frame.
  • the diameter of the central portion of pin 5 is preferably a little smaller than that of the end portions so that carrier tube 6 of the feeling disc is well guided on the thicker end portions of pin 5.
  • An axial shifting of carrier tube 6 is prevented by screw 15 inserted in the pin at the head end.
  • FIGS. 3 and 4 The manner of operation of the shut oflf device is apparent from FIGS. 3 and 4. Between godet 2 and deflection roller 3 the feeling disc in connection with setting member 9 is arranged in the space bounded by the thread course. No contact takes place between feeling disc and thread. The lower free end of the setting member is touched, according to FIG. 3, by switching push rod 13 of microswitch 12. The circuit of the switching system is interrupted in this position.
  • the special advantage of the invention is to be seen in the feature that by means of the feeling disc any possible winder formation (lapping) both on the godet and also on the deflection roller is determined without any contact of the running thread. Winder formation is determined with constant accuracy and through considerable translation of heightened deflection sensitivity the switching system for the stopping of the machine or twisting unit is actuated immediately and automatically.
  • the device consists only of a few parts, is easy to adjust when assembled and in operation, and by reason of its rigid construction is also fully equal to relatively rough treatment. As a structural unit, however, it can also be mounted elsewhere on the stretch twist machine to equal advantage, for example, on the feed mechanism or other run-over rollers.
  • a shut off device for stretch twist machines having a thread conveying means which comprises: feeler means including a rotatable tube and feeler blades operatively associated with said thread conveying means of said stretch twist machines, said feeler means being arranged such that the free edge of each of said blades is at a preselected, equal distance from an associated thread running surface of said stretch twist machine; a switching device for shutting Off said stretch twist machine, a setting member attached to said rotatable tube, said setting memher being operatively associated with said switching device and being arranged to operate said switching device in response to a rotary movement of said feeler means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US536003A 1965-03-23 1966-03-21 Shut off deivce for stretch twist machines Expired - Lifetime US3364669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB61206U DE1926308U (de) 1965-03-23 1965-03-23 Abstellvorrichtung an streckzwirnmaschinen.

Publications (1)

Publication Number Publication Date
US3364669A true US3364669A (en) 1968-01-23

Family

ID=6973112

Family Applications (1)

Application Number Title Priority Date Filing Date
US536003A Expired - Lifetime US3364669A (en) 1965-03-23 1966-03-21 Shut off deivce for stretch twist machines

Country Status (5)

Country Link
US (1) US3364669A (enrdf_load_stackoverflow)
CH (1) CH431800A (enrdf_load_stackoverflow)
DE (1) DE1926308U (enrdf_load_stackoverflow)
GB (1) GB1132742A (enrdf_load_stackoverflow)
NL (1) NL6603758A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461657A (en) * 1967-10-27 1969-08-19 Scragg & Sons Textile apparatus
US3481012A (en) * 1968-06-17 1969-12-02 Eastman Kodak Co Roll for transporting,drafting and/or treating continuous fiber tow and the like
US3790728A (en) * 1971-06-19 1974-02-05 H Whittaker Yarn wrap detector assembly with butterfly type sensor and switch actuator
US6099410A (en) * 1997-02-06 2000-08-08 Nippon Thompson Co., Ltd. Linear-motion rolling guide unit with a flange cover
EP1258832A1 (de) * 2001-05-19 2002-11-20 Schärer Schweiter Mettler AG Einrichtung zur Bestimmung der Anzahl von Fadenwindungen und Verwendung der Einrichtung zur Überwachung der Qualität von texturiertem Garn
CN118109950A (zh) * 2024-04-30 2024-05-31 南通新绣旺纺织品有限公司 一种纺织机用进线夹持装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124693B1 (de) 1971-05-18 1973-01-11 Ice (Europa) Fibres Gmbh, 7524 Oestringen Fadenbruchwächter für eine Faserbe- und/oder -Verarbeitungsvorrichtung
TW200804163A (en) * 2006-05-18 2008-01-16 Saurer Gmbh & Co Kg Delivery mechanism

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919794A (en) * 1958-07-28 1960-01-05 Celanese Corp Tow brake
US3247662A (en) * 1963-01-05 1966-04-26 Rieter Ag Maschf Device for checking the run of the thread in a draw twisting frame or the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919794A (en) * 1958-07-28 1960-01-05 Celanese Corp Tow brake
US3247662A (en) * 1963-01-05 1966-04-26 Rieter Ag Maschf Device for checking the run of the thread in a draw twisting frame or the like

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461657A (en) * 1967-10-27 1969-08-19 Scragg & Sons Textile apparatus
US3481012A (en) * 1968-06-17 1969-12-02 Eastman Kodak Co Roll for transporting,drafting and/or treating continuous fiber tow and the like
US3790728A (en) * 1971-06-19 1974-02-05 H Whittaker Yarn wrap detector assembly with butterfly type sensor and switch actuator
US6099410A (en) * 1997-02-06 2000-08-08 Nippon Thompson Co., Ltd. Linear-motion rolling guide unit with a flange cover
EP1258832A1 (de) * 2001-05-19 2002-11-20 Schärer Schweiter Mettler AG Einrichtung zur Bestimmung der Anzahl von Fadenwindungen und Verwendung der Einrichtung zur Überwachung der Qualität von texturiertem Garn
CN118109950A (zh) * 2024-04-30 2024-05-31 南通新绣旺纺织品有限公司 一种纺织机用进线夹持装置

Also Published As

Publication number Publication date
DE1926308U (de) 1965-11-04
GB1132742A (en) 1968-11-06
CH431800A (de) 1967-03-15
NL6603758A (enrdf_load_stackoverflow) 1966-09-26

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