US3892062A - Apparatus for start-spinning on an open-end spinning machine - Google Patents

Apparatus for start-spinning on an open-end spinning machine Download PDF

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Publication number
US3892062A
US3892062A US463151A US46315174A US3892062A US 3892062 A US3892062 A US 3892062A US 463151 A US463151 A US 463151A US 46315174 A US46315174 A US 46315174A US 3892062 A US3892062 A US 3892062A
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Prior art keywords
spinning
thread
draw
rollers
rotor
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US463151A
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English (en)
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Fritz Stahlecker
Hans Stahlecker
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • D01H4/50—Piecing arrangements; Control therefor for rotor spinning

Definitions

  • Watkins Haldenstrasse 117334 suessen' Attorney, Agent, or Firm-Craig & Antonelli both of Germany [22] Filed: Apr. 22, 1974 57 ABSTRACT Appl 463,15l An apparatus for start-spinning a thread is arranged movably relative to each individual spinning unit along [30] Foreign Applicaion Prior), Dam an open-end spinning machine in order to be able to A 30 1973 G 232W perform start-spinning operations there if required. In ermany order to avoid having to start spinning at the generally very high operating speeds of the spinning rotors.
  • the present invention relates to an apparatus for start-spinning. movable along an open-end spinning machine, which inserts a thread guided in the vicinity of a spinning rotor into said spinning rotor and draws said thread off again after spinning has been started.
  • the start-spinning operation for remedying a thread break for example, numbers among the most difficult operating operations and can be performed only by especially trained operating personnel. For this reason, a number of auxiliary apparatuses have been developed for simplifying the start-spinning operation.
  • a fully-automated startspinning apparatus movable along an open-end spinning machine, is known (German Laid Open patent application No. 2,008,142), which sucks in the broken thread from the winding bobbin, advances it to the vicinity of the spinning rotor, trims it to the predetermined length and then inserts it into the spinning rotor, whereupon the continuous spinning operation is resumed again.
  • Controlling the return of the thread to the spinning rotor with a pulse generator after a thread break is also known (German Laid Open patent application No. 2,130,690).
  • the purpose of an arrangement of this type is to precisely determine the length of the thread to be returned.
  • the end of the thread should reach the point of connection at the wall of the spinning chamber at a suitable speed and at the moment a ring of fibres with the desired properties has built up in the spinning chamber.
  • This arrangement is quite complicated as it must operate very accurately; in addition, it has not solved the problem of avoiding tension peaks after the start-spinning operation.
  • This start-spinning apparatus should operate dependably and trouble-free with a minimum of design effort, even at maximum rotor speeds.
  • this object is solved in that means are provided with cause spinning to be started at a preselected time during the period required for the spinning rotor to reach its operating speed from its previously braked condition. This permits the startspinning operation to take place at a quasi-reduced speed of the spinning rotor, without having to run the other spinning points at reduced speed and without having to arrange speed control means at each individual spinning point.
  • the moment of start-spinning is predetermined by temporarily coupling the start-spinning apparatus with the rotor brake.
  • the movable startspinning apparatus can determine the moment that the rotor runs up to operating speed and can easily insert the thread to be start-spun into the rotor at the optimum moment.
  • the start-spinning apparatus it is also advantageous for the start-spinning apparatus to be switched on with a delay by the release of the rotor brake. This permits the start-spinning operation to be located in the speed range of the spinning rotor which is most favourable for the start-spinning operation, which experience has shown to be approx. 60 of the operating speed.
  • the magnitude of the delay is also practical.
  • thread draw-off rollers it is also advantageous for the thread draw-off rollers to be put in motion before the thread reserve contained in the start-spinning apparatus has been consumed.
  • This intentionally excessive thread reserve eliminates the need for having to stipulate the moment of draw-off too precisely.
  • the peripheral speed of the thread draw-off rollers of the start-spinning apparatus is lower than that of the winding rollers of the spinning machine. This permits the thread to be wound to sag briefly between the draw-off rollers of the start spinning apparatus and the winding roller of the spinning machine, i.e. to be left loose and without tension. This ensures that the moments of lowering the winding bobbin onto the winding roller and startup thereof do not have to be too accurately matched and that a tension peak in this piece of thread is avoided. Because of the higher speed of the winding roller, the loose piece of thread between the winding roller and the draw-ofi rollers of the start-spinning apparatus is tensioned rapidly, yet smoothly. Thread breakage is avoided.
  • start-spinning apparatus it is practical for the start-spinning apparatus to actuate a thread stop-motion of the spinning machine, thus initiating supply of fibres to the spinning rotor in a known manner. This permits actuation to be performed by the movable start-spinning apparatus.
  • the sense of direction of the thread drawoff rollers of the start-spinning apparatus it may be possible for the sense of direction of the thread drawoff rollers of the start-spinning apparatus to be reversible.
  • thread draw-off rollers of this type which are contained in the start-spinning apparatus can serve many spindles and since only one set per machine is needed. for example, they can be designed in a relatively sophisticated manner so as to be able to reverse at very precise moments, in conjunction with gentle starting. In this manner, the need for a thread reserve is eliminated while simultaneously avoiding excessive thread tension peaks.
  • the lift-off roller for the bobbin to be able to be driven in both directions.
  • the thread can be kept almost without tension both while being returned to the rotor and while subsequently being drawn off.
  • the bobbin does not have to be lowered and placed onto the spinning machines winding roller until the bobbin has reached the same peripheral speed as the winding roller. This, also, avoids thread tension peaks, and thus thread breakage after start-spinning.
  • FIG. 1 shows a start-spinning apparatus according to the invention, with thread reserve
  • FIG. 2 shows a start-spinning apparatus according to the invention, without thread reserve.
  • the start-spinning apparatus operates semiautomatically. All work which can be performed easily and without skill by an operator is handled by the operator, while the difiicult work, which must always be performed uniformly and with a high degree of precision, is performed by the apparatus according to the invention.
  • the apparatus is designed in such a manner that it can be employed for remedying a thread break at a spinning point without having to make any structural alterations whatsoever to the spinning point itself or to the drive and control mechanism thereof.
  • the apparatus has auxiliary means which act upon the control elements present at a spinning point.
  • FIGS. 1 and 2 each show schematically only the area of one individual spinning point of an open-end spinning machine.
  • Produced at the spinning point comprising members la and lb, is a thread, which is advanced upward and wound onto a bobbin 6 with the aid of a winding roller 7.
  • the bobbin 6 is mounted on a bobbin holder 4, which can be swivelled about a stationary axle 5, in such a manner that it can be lifted away from winding roller 7.
  • the apparatus 2 for renewed start-spinning which is suspended from an elevated rail, is moved to this spinning point.
  • the drive of bobbin 6 is interrupted by lifting away bobbin holder 4.
  • Bobbin holder 4 is placed on a support lever 22 of the apparatus 2.
  • a sufficiently long thread 8 is then drawn off bobbin 6 and placed over a tension feeler 23 and a pair of drawoff rollers 9 and 10, of which only draw-off roller 9 is driven.
  • Draw-off roller 10 is mounted on a lever which can be swivelled in the direction of arrow C.
  • Deviating roller I1 is located on the free end of a swivel arm 19 which, in the illustrated embodiment, is swivelled automatically by means of a control carn.
  • the thread trapper 14 can be opened automatically by means of a similar control cam.
  • deviating roller 12 which is mounted in a stationary manner, is a tension feeler 21 with which thread 8 is also in a contacting relationship.
  • the apparatus 2 for start-spinning also contains additional control elements with which it acts upon the functioning of the spinning unit without alterations having to be made to this spinning unit.
  • a switch 30 which is mechanically rotatable and which is associated to a thread stopmotion 29, arranged in the area of the thread removal channel 20, in such a manner that it can reverse thread stop-motion 29 to its operational position.
  • Thread stopmotion 29 controls the supply of fibres to the unillustrated spinning rotor in a known manner.
  • apparatus 2 also has an actuating lever 17, which is associated to a brake lever of the spinning point, with which the brake of the spinning rotor is actuated.
  • the automatic portion of the start-spinning operation is initiated by brake lever 15, via actuating lever 17, to which an electric switch 18 is associated which starts the drive and control of apparatus 2. It is possible for initiation to be performed by first merely moving apparatus 2 to the area of the spinning point in order to be able to insert thread 8 in the manner illustrated in FIG. 1. Brake lever 15 is then pressed down and apparatus 2 is placed in its operating position, in which actuating lever 17 is located above brake lever 15. After releasing brake lever 15, the spinning rotor is not only started again, but the automatic start-spinning operation is also initiated.
  • a handle 16 is provided on the apparatus for moving it to this position, which must be precisely aligned. [t it also possible to immediately move apparatus 2 to the illustrated position, in which actuating lever 17 actuates the spinning rotor brake by means of brake lever 15. In this case, actuating lever 17 must have a lock which is overriden by actuating a release button or similar means, which is then the actual starter.
  • Switch 18 contains an adjustable delay element, for example a time relay, which governs when automatic start-spinning is to be performed after the spinning rotor brake is released. Actual practice has shown that it is favourable for the spinning rotor to have reached about 60 of its operating speed during startspinning.
  • the delay element of switch 18 is set accordingly.
  • Switch 18 opens thread trapper l4 and switches the drive of swivel arm 19 on, which swivels in the direction of arrow A. This releases the thread reserve created by deviating roller 11, so that the end of the thread can be sucked to the spinning rotor through thread removal channel 20.
  • the tension feeler 21 switches solenoid switch 30 in such a manner that said solenoid switch 30 places thread stop-motion 29 in its operational position, which starts the supply of fibres to the spinning point.
  • the drive of draw-off rollers 9 and 10 is then switched on either by means of the same tension feeler 21 and a delay element or by means of a second tension feeler set for a different value, so that the thread is drawn off after spinning is started.
  • the thread reserve determined by deviating roller 11 it is practical for the thread reserve determined by deviating roller 11 to be selected in such a manner that it is large enough so as not to be completely consumed when the end of the thread is sucked into the spinning rotor, thereby providing smooth starting when draw-off rollers 9 and 10 are switched on.
  • thread 8 In order to be able to remove apparatus 2, thread 8 must be manually transferred to the thread guide elements of the spinning point by the operator. As shown by the dash-dotted line 28 in FIG. 1, the thread then runs to winding roller 7 and bobbin 6 over thread stopmotion 29, a thread guide shaft 26, a pair of draw-off rollers 24 and 25, a deviating shaft and a traversing thread guide 27.
  • the drive and control means of apparatus 2 are not shown in more detail or explained.
  • Electric servo-motors are preferably employed, which can rotate the illustrated cams of the individual drives, for example. It is only necessary to ensure that it is possible for draw-off roller 10 and thread trapper 14 to also swivel without their drives being switched on in order to be able to insert thread 8 manually. It is practical for apparatus 2 to have a plate shaped configuration, with the thread guide elements being arranged primarily on one side, while all other control and drive means are arranged on the other side of the plate. This provides a very clear, neat design, while thread 8 can be inserted without difficulty from one side.
  • the embodiment of the start-spinning apparatus illustrated in FIG. 2 differs from the embodiment of FlG. l primarily in that there is no thread reserve for startspinning.
  • the pair of draw-off rollers 9a and 10a are first driven in such a manner that thread is drawn off bobbin 6, which has been lifted away from its winding roller 7, and released for being sucked into the spinning rotor.
  • bobbin 6, which has lifted away from its winding roller 7, is placed against a winding roller 22b of apparatus 2a, which is driven in synchronism with draw-off roller 9a.
  • Winding roller 22b is arranged on a support lever 22a, which can be shifted in the direction of arrows F and G.
  • tension feeler 21 switches switch 30, which starts the supply of fibres by changing thread stop-motion 29.
  • draw-off roller 9a and thus draw-off roller 10a, are driven in the direction of arrow H.
  • Winding roller 22b runs in the direction of arrow K in synchronism thereto.
  • Special circuitry and/or corresponding selection of the electric drive motor for draw-off roller 90 and winding roller 22b ensures gentle starting so as to avoid excessive tension peaks in thread 8a.
  • Draw-off rollers 90 and 100, as well as winding roller 22b are accelerated to the speed of rotation, and winding, of winding roller 7.
  • the apparatuses shown in FIGS. 1 and 2 do not necessitate any alterations to the design of the spinning machine or individual spinning points.
  • spinning is started at a reduced spinning rotor speed, the neighbouring spinning points and all common drives are not influenced.
  • the brake of each spinning point which can be actuated independently, initiates the start-spinning operation of the apparatuses when it is opened, as its movement is utilized as the starting signal for the automatic system.
  • the spinning rotor does not reach its operating speed until a certain amount of time has elapsed, this period of time can be utilized for start-spinning at reduced speed.
  • the start-spinning speed can be selected between zero and the operating speed.
  • An apparatus for start-spinning movable along an open-end spinning machine to a spinning unit, which returns a thread to a spinning rotor of said spinning unit and removes said thread therefrom again after spinning has been started, containing means for controlling the moment the start-spinning operation is commenced in such a manner that said start-spinning operation is performed during the period in which the previously braked spinning rotor of said spinning unit starts up and at a speed which is lower than the operating speed of said spinning rotor.
  • the apparatus according to claim 1 having means for actuating a thread stop-motion, arranged on the spinning unit, controlling the supply of fibres to the spinning unit.
  • the apparatus according to claim 1 containing a lift-off winding roller, equipped with lifting means for lifting a bobbin away from a winding roller and having drive means which can be switched on in both directions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US463151A 1973-04-30 1974-04-22 Apparatus for start-spinning on an open-end spinning machine Expired - Lifetime US3892062A (en)

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Application Number Priority Date Filing Date Title
US05/812,411 USRE30167E (en) 1973-04-30 1977-07-01 Apparatus and method for start-spinning on an open-end spinning machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2321775A DE2321775C3 (de) 1973-04-30 1973-04-30 Längs einer Offenendspinnmaschine verfahrbare Vorrichtung zum Anspinnen

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US05/812,411 Reissue USRE30167E (en) 1973-04-30 1977-07-01 Apparatus and method for start-spinning on an open-end spinning machine

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US3892062A true US3892062A (en) 1975-07-01

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US (1) US3892062A (ja)
JP (1) JPS537988B2 (ja)
DE (1) DE2321775C3 (ja)
FR (1) FR2227358B1 (ja)
GB (1) GB1429442A (ja)
IT (1) IT1006468B (ja)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990221A (en) * 1974-11-20 1976-11-09 Hans Stahlecker Open-end spinning machine with at least one mobile servicing device
US4033107A (en) * 1975-05-22 1977-07-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for controlling driving operation of open-end spinning frame
US4080775A (en) * 1975-10-03 1978-03-28 Fritz Stahlecker Yarn piecing process and apparatus for an open end spinning assembly
US4120140A (en) * 1976-05-11 1978-10-17 W. Schlafhorst & Co. Method and device for joining a thread
US4173114A (en) * 1977-03-15 1979-11-06 Fritz Stahlecker Open-end spinning machine with a plurality of spinning assemblies and at least one mobile servicing device
US4175370A (en) * 1977-06-22 1979-11-27 Hans Stahlecker Piecing apparatus for an open-end spinning machine
US4275554A (en) * 1979-12-05 1981-06-30 Platt Saco Lowell Limited Clearance-producing means for open-end spinning machine servicing apparatus
US4288975A (en) * 1979-03-22 1981-09-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for starting a spinning machine
US5152132A (en) * 1989-05-05 1992-10-06 Michael Strobel Process and device for the piecing of a yarn in an open-end spinning machine operating with a spinning rotor
US5243812A (en) * 1989-05-05 1993-09-14 Schubert & Salzer Maschinenfabrik Ag Device for the piecing of a yarn in a open-end spinning machine operating with a spinning rotor
US5535580A (en) * 1994-02-12 1996-07-16 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for piecing on an open-end spinning device
CN106400216A (zh) * 2015-04-30 2017-02-15 里特捷克有限公司 在开放端纺纱机的工作站处纺入纱线的方法及其执行装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458042C2 (de) * 1974-12-07 1985-06-05 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinnmaschine mit einer Vielzahl von Spinnstellen und einem verfahrbaren Wartungsgerät zum Anspinnen nach einem Fadenbruch
DE2620806C2 (de) * 1976-05-11 1986-04-17 Fritz 7347 Bad Überkingen Stahlecker Verfahren zum Übergeben eines laufenden Fadens von einer Anspinnvorrichtung an ein Spinnaggregat
DE2760369C2 (ja) * 1977-03-02 1988-03-24 Fritz 7347 Bad Ueberkingen De Stahlecker
DE2708936C2 (de) * 1977-03-02 1993-07-29 Fritz 7347 Bad Überkingen Stahlecker Verfahren und Vorrichtung zum Anspinnen eines Fadens an Spinnaggregaten einer Offenend-Spinnmaschine
JPS54122571A (en) * 1978-03-15 1979-09-22 Matsushita Electric Works Ltd Lumber withdrawing apparatus
DE3202428C2 (de) * 1982-01-26 1986-06-05 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Verfahren und Vorrichtung zum Anspinnen eines Fadens in einer Offenend-Spinnvorrichtung
IT1210503B (it) * 1982-10-12 1989-09-14 Savio Spa Filatoi di tipo open-end.dispositivo perfezionato di riattacco filo e levata rocche per
JPS6075626A (ja) * 1983-09-30 1985-04-30 Toyoda Autom Loom Works Ltd 精紡機の糸継ぎ方法
CS251339B1 (en) * 1984-09-26 1987-06-11 Frantisek Burysek Spinning-in process control device in spinning units
DE102004040214A1 (de) * 2004-08-19 2006-03-02 Maschinenfabrik Rieter Ag Textilmaschine und Verfahren zur Ansetzeroptimierung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334479A (en) * 1966-03-11 1967-08-08 Vyzk Ustav Bavlnarsky Device for securing yarn during stoppage of the spinning mechanism for the continuous ringless spinning of textile fibers
US3492804A (en) * 1966-09-03 1970-02-03 Schubert & Salzer Maschinen Sensor-actuated strand clamping and strand return mechanism for spinning apparatus
US3541774A (en) * 1968-01-25 1970-11-24 Elitex Zavody Textilniho Control apparatus for starting,stopping,and priming a spinning machine
US3667205A (en) * 1969-03-07 1972-06-06 Ozdian Josef Mechanism for withdrawing and winding yarn in spinning units
US3704579A (en) * 1970-04-18 1972-12-05 Toyoda Automatic Loom Works Practical method and apparatus for driving an open-end spinning frame
US3739565A (en) * 1971-01-29 1973-06-19 Luwa Ag Method and apparatus for cleaning the spinning rotors of open-end spinning equipment
US3760576A (en) * 1970-06-17 1973-09-25 Alsacienne De Constr Mecanique Spinning frame having bowl spindles
US3780513A (en) * 1970-04-08 1973-12-25 Toyoda Automatic Loom Works Method and apparatus for driving open-end spinning frame

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334479A (en) * 1966-03-11 1967-08-08 Vyzk Ustav Bavlnarsky Device for securing yarn during stoppage of the spinning mechanism for the continuous ringless spinning of textile fibers
US3492804A (en) * 1966-09-03 1970-02-03 Schubert & Salzer Maschinen Sensor-actuated strand clamping and strand return mechanism for spinning apparatus
US3541774A (en) * 1968-01-25 1970-11-24 Elitex Zavody Textilniho Control apparatus for starting,stopping,and priming a spinning machine
US3667205A (en) * 1969-03-07 1972-06-06 Ozdian Josef Mechanism for withdrawing and winding yarn in spinning units
US3780513A (en) * 1970-04-08 1973-12-25 Toyoda Automatic Loom Works Method and apparatus for driving open-end spinning frame
US3704579A (en) * 1970-04-18 1972-12-05 Toyoda Automatic Loom Works Practical method and apparatus for driving an open-end spinning frame
US3760576A (en) * 1970-06-17 1973-09-25 Alsacienne De Constr Mecanique Spinning frame having bowl spindles
US3739565A (en) * 1971-01-29 1973-06-19 Luwa Ag Method and apparatus for cleaning the spinning rotors of open-end spinning equipment

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990221A (en) * 1974-11-20 1976-11-09 Hans Stahlecker Open-end spinning machine with at least one mobile servicing device
US4033107A (en) * 1975-05-22 1977-07-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for controlling driving operation of open-end spinning frame
US4080775A (en) * 1975-10-03 1978-03-28 Fritz Stahlecker Yarn piecing process and apparatus for an open end spinning assembly
US4120140A (en) * 1976-05-11 1978-10-17 W. Schlafhorst & Co. Method and device for joining a thread
US4173114A (en) * 1977-03-15 1979-11-06 Fritz Stahlecker Open-end spinning machine with a plurality of spinning assemblies and at least one mobile servicing device
US4175370A (en) * 1977-06-22 1979-11-27 Hans Stahlecker Piecing apparatus for an open-end spinning machine
US4288975A (en) * 1979-03-22 1981-09-15 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for starting a spinning machine
US4275554A (en) * 1979-12-05 1981-06-30 Platt Saco Lowell Limited Clearance-producing means for open-end spinning machine servicing apparatus
US5152132A (en) * 1989-05-05 1992-10-06 Michael Strobel Process and device for the piecing of a yarn in an open-end spinning machine operating with a spinning rotor
US5243812A (en) * 1989-05-05 1993-09-14 Schubert & Salzer Maschinenfabrik Ag Device for the piecing of a yarn in a open-end spinning machine operating with a spinning rotor
US5535580A (en) * 1994-02-12 1996-07-16 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for piecing on an open-end spinning device
CN106400216A (zh) * 2015-04-30 2017-02-15 里特捷克有限公司 在开放端纺纱机的工作站处纺入纱线的方法及其执行装置
CN106400216B (zh) * 2015-04-30 2020-12-22 里特捷克有限公司 在开放端纺纱机的工作站处纺入纱线的方法及其执行装置

Also Published As

Publication number Publication date
IT1006468B (it) 1976-09-30
DE2321775C3 (de) 1979-07-05
DE2321775B2 (de) 1977-08-11
JPS5013640A (ja) 1975-02-13
GB1429442A (en) 1976-03-24
JPS537988B2 (ja) 1978-03-24
FR2227358B1 (ja) 1977-12-02
DE2321775A1 (de) 1974-11-07
FR2227358A1 (ja) 1974-11-22

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