US3751898A - Process for winding yarn package - Google Patents

Process for winding yarn package Download PDF

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Publication number
US3751898A
US3751898A US00180615A US3751898DA US3751898A US 3751898 A US3751898 A US 3751898A US 00180615 A US00180615 A US 00180615A US 3751898D A US3751898D A US 3751898DA US 3751898 A US3751898 A US 3751898A
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United States
Prior art keywords
yarn
package
winding
bulge
waste
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
US00180615A
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English (en)
Inventor
S Inaba
M Fujita
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.)
Teijin Ltd
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Teijin Ltd
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Filing date
Publication date
Priority claimed from JP988369A external-priority patent/JPS4836687B1/ja
Application filed by Teijin Ltd filed Critical Teijin Ltd
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Publication of US3751898A publication Critical patent/US3751898A/en
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
    • C12N11/18—Multi-enzyme systems
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/28—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association
    • D01H1/30—Driving or stopping arrangements for two or more machine elements possessing different characteristics but in operative association with two or more speeds; with variable-speed arrangements
    • D01H1/305—Speed control of the spindles in response to the displacements of the ring rail

Definitions

  • the present invention relates to improvements in a winding process in which yarn is wound with drawtwisters, ring twisters, false twist machines, doubling machines etc.
  • the inventors have, after research with a view to overcoming these disadvantages, hit upon an idea of taking off the waste yarn wound on the package effectively, accurately and with the least amount of standard yarn.
  • the problem has heretofore been looked at in various ways, but the ideas have not yet been carried into effect.
  • the reasons are that the distinguishing of standard and acceptable yarn from waste yarn is impossible. If the distinction were possible from the yarn shape, appearance or color, it would be possible to take off only the waste yarn itself. Actually the distinction is not possible from practical standpoint.
  • simple methods of distinguishing the waste yarn from the standard yarn have been found. The inventors have found that the distinction can be made by a shape on the surface of the package. This will be described below. At first it should be noted that the conception looks very simple, but has actually been reached by various research.
  • FIG. 1 is a diagram showing one example of conventional yarn traversing motions in a twister
  • FIG. 2 is a vertical section showing the winding shape of the yarn wound onto a bobbin by the traversing motions of FIG. ll;
  • FIG. 3 is a diagram showing one embodiment of yarn traversing motions according to the present invention.
  • FIG. 4 is a vertical section of the package wound by the motions of FIG. 3;
  • FIG. 5 is a diagram showing a further embodiment of yarn traversing motions according to the present invention.
  • FIG. 6 is a vertical section of the package wound by the motions of FIG. 5;
  • FIG. 7 is a diagram showing a still further embodiment of yarn traversing motions according to the present invention.
  • FIG. 8 is a vertical section of the package wound by the motions of FIG. 7;
  • FIG. 9 is a schematic diagram of a traverse driving means and winding means for the yarn winding machine according to the present invention.
  • FIGS. 10 and 11 are diagrams showing the actions of the change-over valves of the yarn winding means of FIG. 9.
  • FIGS. 1 and 2 one conventional method of winding yarn into a package has been shown. It has no way to eliminate the waste yarn from the package effectively.
  • the length of time of winding is plotted as the abscissa and the traverse length is plotted as the ordinate.
  • a traverse ring is at position a, which position corresponds to the lower part in FIG. 2, waste spool 1.
  • Preliminary windings 2 are collected on waste spool l for stringing up, and when the yarn has reached the normal speed after acceleration, the yarn begins normal traversing motions b.
  • the standard yarn can be wound on bobbin 3.
  • the yarn shifts from waste spool l to package 4, and a transfer tail is formed at 5 on the bobbin.
  • the package becomes full, and the yarn reaches position 0, and the driving motors for the rollers and the winding spindles are turned off.
  • the waste yarn generated during the time from immediately after the switch-off to the stoppage of the whole yarn winding machine is first wound on package 4. Afterwards, it is wound onto waste spool l by lowering the traverse ring to lowermost position :1 about the time when each driving roller and each spindle stop rotating completely. Hence the winding is concluded.
  • the distribution of the waste yarn between package 4 and waste spool l is optional, but, as described above, the more the amounts on the waste spool, the more frequently must the waste spool be replaced, resulting in the stumbling block to continuous operations.
  • the yarn extending between the waste spool l and the package 4 is cut for effecting doffing, and an empty bobbin is supplied for the resumption or the winding. That is, the operations are started again, the yarn is wound onto the waste spool by traverse d until normal winding conditions are attained. Then the yarn is shifted to normal traverse e, and hereafter the same procedure is repeated.
  • this waste yarn could cause a serious quality deterioration in fabrics woven from the yarn, and if the standard yarn is taken off together with the waste yarn, it will cause an economic loss. This fact also serves to show the importance of the present invention.
  • the process according to the invention is to switch off the driving motor for the rollers and the winding spindles when the package is full and the yarn reaches position 0 and at the same time stop the yarn traversing motions temporarily for length of timefto fonn bulge 6 on the surface of package 4.
  • bulge 6 is the incompletely drawn yarn produced after the machine is switched off. Since this bulges is only a mark to indicate the initially wound yarn which is in an undrawn or partially drawn state, it need not be made larger than is needed, it is necessary to determine an appropriate length of time for stoppage of the traversing motions.
  • the traverse ring is moved to position d just before the complete stoppage of each driving roller and each spindle at the conclusion of the winding.
  • the traversing motions are described as being stopped at the moment the driving motor is switched off, but they may be stopped just before the switch-off. In short, it is essential that bulge 6 be formed at an easily recognizable location on package 4.
  • any conventional means can be used.
  • a device wherein a clutch is provided to connect or disconnect the driving and driven parts can be mounted on the driving shaft of the traverse ring.
  • FIGS. 5 and 6 are to form bulge 6 by the procedure described above with reference to FIGS. 3 and 4 and then to move the traverse ring to position g, outside of the winding width of the package and to form bulge 7 on the upper end of the bobbin. Then just before the spindle completely stops, the traverse ring is lowered to position d to wind the waste yarn on waste spool l and to finish the winding.
  • the bulge 7 is supposed to be fonned on the upper end of the bobbin, but it may be formed at the lower end of the bobbin. Any suitable conventional device can be employed to transfer the traverse ring.
  • the method of the present invention is thus very simple and yet very conspicuous in its effects.
  • yarn Y passes through draw roller 8 and lappet guide 9 and traveller 11 on ring 10 and is wound on bobbin 3 mounted on wind-up spindle 12 to form package 4.
  • the spindle 12 is driven by motor 13 and the ring is supported by ring holder 14 which is secured on ring rail 15.
  • the ring 10 that is, the traveller 11 is traversed vertically.
  • the package is formed.
  • the source of the traversing motions will be described below.
  • the ring rail 15 is suspended by traverse belt 16 the direction of which is changed by freely rotatable pully 17.
  • One end of the belt is fastened to the piston rod 19 of hydraulic cylinder 18. Hence by the left and right movement of piston 20 in the hydraulic cylinder 18 the ring 10 is caused to traverse vertically.
  • inlet and outlet oil pipes 21 and 22 are connected, and the other ends of said inlet and outlet oil pipes 21 and 22 are connected to change-over valve 23.
  • the change-over valve assembly as illustrated in the Figure, which comprises valve A, valve B and solenoids X and Y actuating the valves, respectively, acts to change the direction of flow of oil led into the hydraulic cylinder 18.
  • oil supply pipe 24 To the oil inlet of the change-over valve 23 are connected oil supply pipe 24 and exhaust pipe 25. To the oil supply pipe24 is connected pump 26, and the suction pipe 27 of the pump 26 reaches oil tank 28.
  • the exhaust pipe has its opening in the oil tank 28 and relief valve 30 is mounted on branch pipe 29 connected to the oil supply pipe 24. The branch pipe 29 reaches the oil tank 28 via relief valve 30.
  • the valve A is connected between pipes 21 and 25 and pipes 22 and 24 respectively as shown in FIG. 10, and the pressure oil from the pump 26 enters the hydraulic cylinder 18 from the right side to move the piston 20 from right to left.
  • the valve B is connected in the pipes, as shown in FIG. 11, and the pressure oil enters the hydraulic cylinder 18 from the left side to move the piston 20 from left to right and to cause the oil in the right side of hydraulic cylinder 18 to return to the oil tank 28 via the oil outlet pipe 22 and the exhaust pipe 25.
  • the change-over valve 23 is positioned in the neutral position as shown in FIG.
  • the pressure oil from the pump 26 just returns to the oil tank 28 viathe oil supply pipe 24 and the branch pipe 29, the piston 20 remaining stationary. Since the relief valve does not allow oil to pass through it unless the oil is kept above a predetermined pressure, the pressure oil will not return to the oil tank'28 through the branch pipe 29 during the normal traversing motions if the pressure oil is below the predetermined pressure.
  • the piston 20 in the hydraulic cylinder 18 is caused to make reciprocating motions by alternately exciting solenoids X and Y.
  • the method of exciting solenoids X and Y will be described below.
  • Numeral 31 designates an arm secured to the piston rod, and on the tip of the arm 31 is mounted switch striking piece 32 so that the switch piece 32 makes the same movements as the piston 20.
  • Numeral 33 designates a threaded shaft on which threads 3130 and 33b opposite to each other are positioned at the left and right ends and meeting at the center.
  • Limit switch 34a is mounted on the threads 33a and limit switch 34! on the threads 33!; and the limit switches 34a and 34b do not rotate. Hence the limit switch 34a is caused to move toward or away from the limit switch 34b according to the direction of rotation of the shaft 33.
  • a conventional electric circuit is provided such that when the switch striking-piece 32 engages the limit switch 34b the solenoid Y is excited and when it engages the limit switch 340, the solenoid X is excited.
  • Numerals 35 and 36 are each limit switches secured in positions at the lower and upper ends of traverse. When these are excited, the change-over valve 23 is moved to a neutral position.
  • the change-over valve 23 is positioned as shown in FIG. 11 and the limit switches 34a and 34b are separated from each other for the traverse length.
  • traversing is started by feeding pressure oil from the pump 26.
  • the motors for the draw rollers and the spindles are switched off, during which time a signal is supplied to the change-over valve 23 (independent of signals of limit switches 34a and 34b)-to keep the change-over valve neutral for a short time as determined by a timer (not shown). Accordingly, the piston 20 is stopped, traversing'is stopped, and a bulge 6 is formed. After the lapse of time set by the timer, the solenoid X is excited, the piston 20 moves to the right and the ring 10 descends and stops.
  • a signal is given such that the changeover valve 23 is kept neutral with the limit switch 36 disposed at a position corresponding to the point g, and the piston 20, that is the ring 10, is stopped for the length of time set by another timer (not shown) by the procedure described above. Afterwards, the piston 20 moves to the right, and the ring 10 stops at the waste spool 1 position below the bobbin 3. At this time the switch striking piece 32 contacts the limit switch 340 twice during its reciprocation. The electric circuit is such that when the switch striking piece 32 contacts the limit switch 34b, the signal of the limit switch 34 a does not reach the solenoid X.
  • bulge 6 indicates the boundary between the standard and waste yarns. Accordingly all one has to do for the complete removal of the waste yarn is remove this bulge. Wrongful excessive removal of the standard yarn, which has been the case thus far, is avoided.
  • the presence of such bulges makes the removal operations much easier. With these bulges to mark the waste yarn present as in the present invention, the winding operations can be carried out accurately. Further, when a large number of packages are to be handled and it is forgotten to remove the waste yarn from some of them, it is much easier to find the packages with the yarn not removed by simply looking for the bulges.
  • a second bulge 7 is formed outside of the winding area after the formation of a first bulge 6 on the package.
  • bulge 7 can be pulled off the bobbin with the tips of the fingers, making the operations of removal of waste yarn much easier.
  • the methods of the present invention are characterized by forming a bulge on the surface of the package with waste yarn produced as the parts of the winding machine are still moving due to inertia after the switch-off of driving motors and after the filling of the bobbin, and by removing the waste yarn
  • EXAMPLE Polyethylene terephthalate yarn was drawn and twisted at a speed of 600 m/min with a draw-twister to obtain the drawn yarn, 75 de/36 til.
  • the amount or waste yarn removed from the packages wound according to the present invention was compared with the amount removed from packages wound by comventional methods for 1,000 pims each. The results are given in the following table:
  • a process for winding yarn in a package on a windup spindle in a yarn winding machine comprising stopping the yam traversing motion for a short time at a time no less than the motors for the driving roller and the wind-up spindle at the yarn winding machine are switched off at the end of the winding operation in the yarn winding machine to form a distinctly visible bulge of wound yarn on the surface of the package, and separating from the regular yarn irregular yarn wound on the package by unwinding the yarn wound on the package after the bulge is formed and unwinding the yarn forming the bulge.
  • a process for winding yarn as set forth in claim 1 comprising, after the formation of the first bulge, transferring yarn winding position outside of the winding width of the package to form a second bulge of irregular yarn on one end of the package.
  • a process of winding yarn as set forth in claim 1 further comprising imparting several traversing motions to the yarn between the fonnation of the first bulge and the end of the yarn winding.

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  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Winding Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
US00180615A 1969-02-10 1971-09-15 Process for winding yarn package Expired - Lifetime US3751898A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP988369A JPS4836687B1 (de) 1969-02-10 1969-02-10
GB08634/69A GB1276006A (en) 1969-02-10 1969-04-11 Enzymes

Publications (1)

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US3751898A true US3751898A (en) 1973-08-14

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US00180615A Expired - Lifetime US3751898A (en) 1969-02-10 1971-09-15 Process for winding yarn package

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US (1) US3751898A (de)
DE (2) DE2005362B2 (de)
FR (1) FR2043161A5 (de)
GB (2) GB1276006A (de)
NL (1) NL7004923A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5259179A (en) * 1991-03-11 1993-11-09 Howa Machinery, Ltd. Device for stopping bobbin rail of flyer frame at a desired position
US5393002A (en) * 1990-07-21 1995-02-28 Schubert & Salzer Maschinenfabrik Ag Process and device for the constitution of a yarn end reserve winding on yarn packages of a textile machine
US5547138A (en) * 1993-05-28 1996-08-20 Savio Macchine Tessili S.R.L. Bobbin winding method and winding machines for yarn winding after controlled cutting of the yarn
US5924644A (en) * 1997-04-04 1999-07-20 Zinser Textilmaschinen Gmbh Method of producing different types of spool windings, especially flyer or composite spools

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130924A1 (de) * 1981-08-05 1983-02-17 Röhm GmbH, 6100 Darmstadt Oberflaechenreiche systeme zur fixierung von nucleophile gruppen enthaltenden substraten
US4401765A (en) * 1981-09-01 1983-08-30 E. I. Du Pont De Nemours And Company Covalently bonded high refractive index particle reagents and their use in light scattering immunoassays
DE3925861A1 (de) * 1989-08-04 1991-02-07 Schlafhorst & Co W Kopsvorbereitungseinrichtung zum aufwinden des fadenanfanges auf der huelsenspitze des kopses
DE4023291A1 (de) * 1990-07-21 1992-05-14 Schubert & Salzer Maschinen Verfahren und vorrichtung zur bildung einer fadenendreservewicklung auf spulen an einer textilmaschine
DE4026992A1 (de) * 1990-08-25 1992-02-27 Roehm Gmbh Verfahren zur herstellung von traegersystemen fuer biologisch aktive materialien
DE4415677C2 (de) * 1993-05-12 2001-09-13 Barmag Barmer Maschf Verfahren zur Qualitätskennzeichnung einer Fadenspule und Spulvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE187936C (de) *
US1527751A (en) * 1924-02-07 1925-02-24 Firm Vogtlandische Maschinenfa Device for fixing the free thread ends of the spools of embroidery machines
US2747359A (en) * 1951-09-26 1956-05-29 Du Pont Process and apparatus for winding heavy denier yarn packages
US3669373A (en) * 1967-05-09 1972-06-13 Teijin Ltd Method of taking up yarns of synthetic fibers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE187936C (de) *
US1527751A (en) * 1924-02-07 1925-02-24 Firm Vogtlandische Maschinenfa Device for fixing the free thread ends of the spools of embroidery machines
US2747359A (en) * 1951-09-26 1956-05-29 Du Pont Process and apparatus for winding heavy denier yarn packages
US3669373A (en) * 1967-05-09 1972-06-13 Teijin Ltd Method of taking up yarns of synthetic fibers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393002A (en) * 1990-07-21 1995-02-28 Schubert & Salzer Maschinenfabrik Ag Process and device for the constitution of a yarn end reserve winding on yarn packages of a textile machine
US5590843A (en) * 1990-07-21 1997-01-07 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for the constitution of a yarn end reserve winding on bobbins of the textile machine
US5259179A (en) * 1991-03-11 1993-11-09 Howa Machinery, Ltd. Device for stopping bobbin rail of flyer frame at a desired position
US5547138A (en) * 1993-05-28 1996-08-20 Savio Macchine Tessili S.R.L. Bobbin winding method and winding machines for yarn winding after controlled cutting of the yarn
US5924644A (en) * 1997-04-04 1999-07-20 Zinser Textilmaschinen Gmbh Method of producing different types of spool windings, especially flyer or composite spools

Also Published As

Publication number Publication date
FR2043161A5 (de) 1971-02-12
DE2016729A1 (de) 1970-10-15
DE2005362A1 (de) 1970-08-27
GB1276006A (en) 1972-06-01
GB1276066A (en) 1972-06-01
DE2005362B2 (de) 1972-09-28
NL7004923A (de) 1970-10-13

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