US3561688A - Yarn transfer method in the windup operation - Google Patents

Yarn transfer method in the windup operation Download PDF

Info

Publication number
US3561688A
US3561688A US740804*A US74080468A US3561688A US 3561688 A US3561688 A US 3561688A US 74080468 A US74080468 A US 74080468A US 3561688 A US3561688 A US 3561688A
Authority
US
United States
Prior art keywords
yarn
guide
bobbin
traveling
flexible member
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
US740804*A
Other languages
English (en)
Inventor
Shingo Hagihara
Akio Ando
Akemi Higashimoto
Katsumi Hasegawa
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.)
Toray Industries Inc
Original Assignee
Toyo Rayon Co Ltd
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
Priority to JP39004003A priority Critical patent/JPS5025060B1/ja
Priority to JP39020068A priority patent/JPS5025061B1/ja
Priority to DE1965T0027892 priority patent/DE1560615B1/de
Priority to BR166781/65A priority patent/BR6566781D0/pt
Priority to GB4112/65A priority patent/GB1072761A/en
Priority to FR3808A priority patent/FR1423275A/fr
Application filed by Toyo Rayon Co Ltd filed Critical Toyo Rayon Co Ltd
Priority to US740804*A priority patent/US3561688A/en
Application granted granted Critical
Publication of US3561688A publication Critical patent/US3561688A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/044—Continuous winding apparatus for winding on two or more winding heads in succession
    • B65H67/056—Continuous winding apparatus for winding on two or more winding heads in succession having two or more winding heads arranged in series with each other
    • 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 path of the flexible member also crosses the adjacent ends of the bobbin which have yarn catching means thereon. As the travelling guide moves along the path of the flexible member, it picks up the yarn and moves it so that it moves past the end of an empty bobbin and when the bobbin rotates, it picks up the thus moved yarn.
  • This invention reiates to a yarn transfer method carried out in the windup operation and to an apparatus therefor. More particularly, the invention relates to a yarn transfer method and apparatus therefor wherein the continuous windup of yarn is made possible by transferring the yarn from a full wound bobbin to an empty bobbin without interruption and moreover without waste of yarn.
  • the operation in which the yarn is wound up on a bobbin and then, when the bobbin has become full, the yarn is transferred to a new bobbin encounters the difficulty that the yarn package becomes inferior. Further, it frequently occurs that either the yarn gets wound up on the drive roll instead of being wound up as desired on the new windup bobbin, or the yarn transferred to the new bobbin is not traversed as it should be, or a long period of time is required for the yarn to return to its normal traversing actions after the transfer operation. And these undesirable tendencies become worse as the windup speed becomes higher.
  • An object of the present invention is to provide a method by which the transfer of a yarn from a full wound bobbin to a fresh empty bobbin can be carried out smoothly without interrupting the windup of the yarn.
  • Another object of this invention is to provide a reliable yarn transfer method wherein in carrying out the transfer of the yarn there is no waste at all of the yarn and further the yarn package is not deformed in the least until completion of the yarn transfer.
  • Still another object of the invention is to provide a yarn transfer method which can be applied readily to the conventional windup apparatus and by which the yarn transfer necessary during the winding up of a yarn can be automated.
  • a further object of the present invention is the provision of an apparatus by which the hereinbefore described method is carried out.
  • a yarn transfer method carried out in the windup step which is characterized by driving simultaneously a windup bobbin and an empty bobbin, hooking the yarn being wound with a traveling guide at a point between the yarn feed source and a fixed guide disposed upstream of the windup bobbin presently being wound when the latter has become full, conducting the thus hooked yarn to an end of the empty bobbin, severing the yarn by effecting the seizure of the yarn by means of a yarn catch provided at said end, thereby effecting the transfer of the yarn from the full wound bobbin to the empty bobbin.
  • the present invention comprehends as the windup drum not only a windup drum which is not axially mounted, but is merely held between other rollers, but also the ordinary bobbins which rotate by being axially mounted. However, in either case it is necessary that they wind up a yarn by their rotation at a surface speed corresponding to the yarn forwarding speed.
  • This drive system may be either a surface drive system or a spindle drive system, and in the case of the former this drive system includes not only the instance where the bobbin being wound up and the empty bobbin are disposed radially of a single drive roll, but also the instance where the bobbin being wound up and the empty bobbin are juxtaposed axially of the drive roll, and the instance where the bobbin being wound up and the empty bobbin are respectively driven by a plurality of drive rolls.
  • these bobbins are desirably driven by a surface drive system, and by so doing there is an advantage in fitting and removing of the fully wound bobbin and the empty bobbin.
  • the yarn feed source as defined in this invention contains the entire forwarding structure such as yarn delivery rollers and forwarding guides.
  • the traveling guide be attached to a loop-shaped flexible member which is rotatable in the desired direction.
  • the traveling guide attached to the flexible member be caused to hook the yarn by traveling across the path that the yarn takes when it is being normally wound up and then moved so that the transfer distance is shortened as much as possible to guide the yarn to the end of the empty bobbin.
  • the foregoing fixed guide can be provided between the yarn feed source and the windup mechanism, in the normal yarn guide plane (the plane including the yarn path during the normal windup, i.e. when the yarn transfer operation is not being carried out), and it need not necessarily function as a guide during the normal windup operation.
  • the essential point is that it suffices if it functions as a fixed guide for guiding the yarn during the period from the start of the transfer operation to the completion thereof.
  • the foregoing normal yarn guide plane and the moving plane of the traveling guide either (I) intersect at a certain angle at the place where the traveling guide hooks the yarn. i.e., at a place intermediate of the yarn feed source and the fixed guide; (2) are identical; or (3) are proximate and parallel to each other.
  • the moving plane of the traveling guide must be adjusted such that the yarn path between the yarn feed source and the travelling traveling guide is in a position such as to at least contact the end of the empty bobbin to which the yarn is to be transferred or in a position very close to this position.
  • the former relative position of the moving plane is best employed when the yarn is fine, whereas the latter is used when the yarn is thick.
  • the yarn is caused to contact the end of the empty bobbin by means of a yarn presser and severing means, and the yarn caught in the yarn catch provided in the end of the windup bobbin is severed by said severing means.
  • FIG. I is a schematic drawing illustrating the application of the transfer method of the invention.
  • FIG. 2 is a side view showing one embodiment of the present invention, the locus of the yarn resulting from the movement of the traveling guide being illustrated;
  • FIGS. 3 and 4 are front views of an embodiment having a similar arrangement to that shown in FIG. 2 and are for illustrating the changes in the yarn path which occur in concomitance with the movement of the traveling guide;
  • FIGS. 5A and 5B are side and front views, respectively, illustrating the relationship between the windup bobbin and the yarn presser and severing means which can be used as an accessory in the present invention
  • FIG. 6 is a front view showing another embodiment of the invention involving dual windup means
  • FIG. 7 is a side view of the embodiment as shown in FIG. 6;
  • FIG. 8 illustrates the changes in the yarn path that takes place in concomitance with movement of the traveling guide in the embodiment shown in FIGS. 6 and 7;
  • FIGS. 9 and 10 are front and side views, respectively, illustrating another embodiment of the dual method of windup to which the present invention has been applied:
  • FIGS. 11A to 11D are diagrams illustrating the yarn transfer operation in the arrangement shown in FIGS. 9 and 10;
  • FIGS. 12 and 13 are front and side views, respectively, of still another embodiment of the invention in which two fixed guides are used which cooperatively move with the movement of the traveling guide;
  • FIGS. 14A and 14B are diagrams illustrating the movements of the traveling guide and the fixed guides in the arrangement shown in FIGS. 12 and 13.
  • FIG. 15 is a diagram illustrating the operational sequence of means such as a timer which is used as an accessory in the invention.
  • FIG. 16 is a schematic circuit diagram of a control circuit for the embodiment of FIGS. 9 and I0.
  • FIG. 17 is an illustration of a mechanism for transferring the bobbins in the embodiment of FIGS. I2 and 13.
  • FIG. I is a schematic view illustrating an instance of the application of the transfer method of the present invention in winding up a yarn.
  • Yarn y delivered from yarn feed source 5, after passing neighborhood of fixed guide 4 is wound up as yarn layer Y onto windup bobbin 2 which is surface driven by drive roll 1.
  • Windup bobbin 2 is supported in place against drive roll 1 by a suitable support structure Ia.
  • Support In comprises two Y-shaped bodies which have small rollers on the ends thereof. The rollers contact and support bobbin 2.
  • Supports 1a are supported by suitable means such as a spring mounting, to thereby give as the windup bobbin becomes wound with yarn.
  • Support structure la is similar to that disclosed in US Pat. No. 3,370,798.
  • traveling guide 11 hooks yarn y intermediate of the yarn feed source 5 and fixed guide 4 and starts traveling in the direction ofthe arrow.
  • Traveling guide 11 is preferably provided on a flexible member 12, for example, a chain or belt, the latter being loopshaped and mounted about pulleys l3 and driven by motor M, and which determines the direction in which the traveling guide proceeds.
  • FIGS. 2 and 3 are side and front views, respectively, of an arrangement of one embodiment of the invention.
  • yarn y delivered from yarn feed source 5, after passing through delivery guide 6 and traversed by means of traverse guide 8 of traverse mechanism 7, is wound up as yarn layer Y onto windup bobbin 2, which is surface driven by drive roll 1.
  • Drive roll 1 also simultaneously drives an empty bobbin 3.
  • Traveling guide 11 is mounted on a flexible member 12 which is controlled by means of guides and drive pulley 13 as to the path over which it proceeds.
  • the path of flexible member l2 i.e., the path over which traveling guide 11 proceeds, has a bent configuration such that the locus of yarn y, i.e., the plane through which the yarn is traversed during normal windup, is traveled across and moreover is such that the yarn booked by traveling guide 11 is guided to the end of empty bobbin 3 that is being driven.
  • the setup is such that, while as seen from the front, the locus of the traveling guide 1I resulting from the movement of the loop-shaped flexible member appears to intersect the locus of yarn y, at points A and B, the plane of the locus of the traveling guide 11 is at an angle 9 to the locus of yarn y, which causes traveling guide II to hook yarn v at B but not at A, This is clearly seen in FIG. 2, where the normal yarn guide plane of yarn y and them the moving plane 3 of the traveling guide intersect at point B at angle 9.
  • fixed guide 4 is disposed in a relative position such that the normal yarn locus of yarn y does not pass through fixed guide 4.
  • timer means is actuated to drive the flexible member driving motor M, and traveling guide 11 in the position shown in FIG. 3 being moved by flexible member 12 travels in the direction of the arrow and hooks yarn y at point B.
  • traveling guide 11 travels and comes to point I of FIG. 4, the yarn path becomes i y,.
  • the yarn from the yarn feed source by passing via the delivery guide, moving guide, fixed guide 4 and traverse guide in the sequence given is wound up on windup bobbin 2.
  • the traveling guide proceeds to travel about in the direction of the arrow, passing point II (the yarn path becomes y at this time) and thence arrives at point III (the yarn path becomes ya at this time).
  • the yarn path (eg. y,, y and y passes through the several guides in the foregoing order during the time the yarn shifts its position while being held by traveling guide 11, the yarn at all times passes through the fixed guide and is thereafter traversed by the traverse guide. Hence, no abnormalities in the traversing of the yarn of deficiencies in the form of the yarn package occur during the period in which these operations are carried out.
  • a yarn presser and serving mechanism As shown in FIG. 5, can be used.
  • traveling guide 11 is brought to a stop at a place close to position III in FIG. 4, i.e., at a place where the yarn comes very close (y to the end of the empty bobbin.
  • a sing signal enters rotary solenoid 38 at this time from an actuating means described hereinafter, such as a limit switch such as 44 or 44' of FIGS. 6-8
  • shaft 38 is rotated to swing knife 37 in a horizontal plane.
  • This knife is hooked-shaped, for instance, and is provided with an edge and only its tip. Accordingly, as seen in FIGS.
  • the yarn which has been-thus wound onto a fresh windup bobbin 3 automatically returns to the center by means of the tension of the yarn and is hooked by traverse guide 8 into which the yarn automatically slips, no matter from what direction it comes so as to be traversed normally while the windup of the yarn continues.
  • FIGS. 6 to 8 illustrate the application of the present invention to the dual windup method, a method in which two windup bobbins are arranged along side each other.
  • yarn y is delivered by means of yarn delivery roll 5 and is wound up as a yarn layer Y onto windup bobbin 2 while being traversed by means of traverse guide 8 of traverse device 7 via fixed guide 4.
  • traverse guide 8 of traverse device 7 via fixed guide 4.
  • windup bobbin 2 becomes full, an empty bobbin 3 fitted on a supporting mechanism 32 provided symmetrically of windup bobbin 2 is pressed against-the drive roll 1 and driven by surface drive (see FIG. 7).
  • the flexible member 12 equipped with traveling guide 11, when seen from the front, is provided in a loop shape as shown in FIG. 6, whereas, when seen from the side, is provided so that the moving plane of the traveling guide is a plane g as shown in FIG. 7.
  • traveling guide 11 contacts limit switch 42, the solenoid is deenergized and pushout guide 9 retracts to return yarn y to its former position.
  • Traveling guide 11 continues its travel and contacts limit switch 43 (no action takes place here when the traveling guide is moving clockwise), after which yarn y is hooked by traveling guide 11 between delivery roll 5 and fixed guide 4 and then the traveling guide arrives at point I in FIG. 8.
  • traveling guide 11 contacts limit switch 43 which operates electromagnetic solenoid 22 whereby another normally extended fixed guide 4' is made to recede.
  • the path of the yarn at this time is indicated by y,, it passing from the delivery roll to traverse guide 8 via the traveling guide and fixed guide 4.
  • traveling guide 11 stops at points IV by the action of limit switch 44 disposed at this point, and the yarn is severed by the knife illustrated in FIG. 5 and transferred to the fresh windup bobbin 3.
  • FIGS. 9-11 illustrate another embodiment of the invention using the dual windup method.
  • yarn y delivered from the yarn feed source is wound up via delivery guide 6 while being traversed by means of rotary traverse roll 7, the actions during the normal windup being identical to that of the embodiment shown in FIGS. 6-8.
  • windup bobbin 2 becomes full, an empty bobbin 3 starts to rotate by coming into contact with drive roll I.
  • traveling guide 11 which was stopped at the position of limit switch 45, starts moving in the direction of the arrow as a result of the movement of flexible member 12.
  • the contact with limit switch 44 produces no control action.
  • traveling guide 11 contacts limit switch 41 and actuates, it, yarn pushout guide 9 is pushed forward by means of solenoid 2].
  • the yarn transferred to fresh bobbin 3 passing through guide 10' is wound up onto windup bobbin 3 directly below guide 10'. It is necessary for the windup bobbin to be so disposed that its ends are located inwardly of the guides 10 and 10'.
  • the traveling guide stops at the position shown in FIG. 11C and the yarn is transferred to the fresh windup bobbin 3 by the means described in connection with FIG. 5.
  • the aforesaid guides 10 and 10' control the yarn path still more closely to ensure that the yarn in the path between yarn delivery guide 6 and traveling guide 11 is not severed by becoming caught in the stringing up opening 60' of the rotary traverse 7.
  • traveling guide 11 When traveling guide 11 then proceeds further around its circuit and contacts limit switches 44' and 45, solenoid 23 is actuated to retract guide or 10, with the consequence that yarn y is disengaged from guide 10 or 10 and gets caught in the yarn stringing up opening 60 or 60' to be traversed normally. On the other hand, the traveling guide stops at this point.
  • FIG. 16 A circuit diagram for the circuit for driving the flexible member 12 of FIGS. 9 and 10 is shown in FIG. 16. All relay switches are shown in their normal position, i.e. the position to which they move when the corresponding relay coil is deenergized. The description of the circuit and its operation will be started with the apparatus set to wind yarn on a bobbin in the lefthand portion of the apparatus of FIG. 9. The circuit is connected across lines from a power source (not shown). The switch RR, between lines 37 and 38 of circuit is in the upper position so that relay coil 24 is energized and relay coil 25 is deenergized, and relay switch 24 in line 3 is closed and relay switch 25 in line 5 of the circuit is open.
  • Switch RR between lines 34 and 35 is also in the lowered position so that relay coil 14 is deenergized, thus opening relay switches 14 in lines 13, 28, and 32 of the circuit, while relay coil in line 35 is energized and relay switches 15 in lines 14, 26 and 30 of the circuit are closed.
  • Timer T, in line 1 is actuated by pushing switch SW, in line 2 to'the closed position.
  • This energizes relay coil 4 in line 2 and closes relay switch 4 in line 1 so as to energize the timer T,.
  • Relay coil 4 also closes relay switches 4 in lines 4 and 6 for the purpose of holding relay 4 energized. It also closes relay switch 4 in line 36 and energizes relay coil RR in order to switch relay switch RR, of lines 37 and 38 to the lower position.
  • Relay switch 3 in line 15 is a holding switch for holding the relay coil 3 energized, and relay switch 3 in line 57 energizes the motor M in line 56 for driving the flexible member 12 clockwise in FIG. 9.
  • the traveling guide 11 on flexible member 12 first engages and momentarily closes limit switch 44, which temporarily energizes relay coil 16 and in line 7 to close relay switch 16 in line 16. This energizes relay coil 5, which in turn closes relay switch 5 in line 17. However, since relay switch 17 in line 17 is open, because relay coil 17 in line 8 is not energized, no control action occurs.
  • the traveling guide 11 next momentarily closes limit switch 41 and energizes relay coil 20 in line 22 which in turn closes relay switch 20 in line 26. Since relay switch 15 is closed, relay coil 10 is energized to close relay switch 10 in line 27 for holding relay coil 10, and relay switch 10 in line 58 for actuating solenoid 21. Solenoid 21 moves guide 9 forward, thus moving the yarn forward.
  • the traveling guide 11 next strikes and momentarily closes limit switch 42, which energizes relay coil 22 in line 24. This opens normally closed relay switches 22 in line 27 and line 33 so that relay coil 10 is deenergized due to the interruption of the holding circuit. As a result, the solenoid 21 is deenergized and yarn guide 9 is drawn back to its original position. During this time the solenoid 22 for yarn guide 4 is not actuated.
  • Traveling guide 11 next strikes and momentarily closes limit switch 43, thus energizing relay coil 12 in line 30.
  • relay switch 15 being closed.
  • Relay coil 12 closes relay switches 12 in line 31 and 60, the relay switch 12 in line 31 completing a holding circuit for relay coil 12 and the relay switch 12 in line 60 energizing solenoid 22' to draw yarn guide 4' back.
  • the traveling guide 11 next momentarily strikes and closes limit switch 42'", energizing relay coil 23 in line 25, which in turn opens normally closed relay switch 23 in lines 29 and 31. thus breaking the holding circuit for relay coil 12.
  • solenoid 22' is deenergized and yarn guide 4 is returned to its forward position.
  • Traveling guide 11 next strikes and momentarily closes limit switch 41 and energizes relay coil 21 of line 23. This closes relay switch 21 in line 28, but because switch 14 is open, relay coil 11 is not energized.
  • the traveling guide 11 next strikes and momentarily closes limit switch 44 energizing relay coil 17 in line 8 for opening normally closed relay switch 17 in line 6 and closing relay switches 17 in lines 17 and 19. Opening of relay switch 17 in line 6 breaks the holding circuit to relay coil 4, thus deenergizing it so that normally closed switch 4 in line 36, which has been held open by relay coil 4, is allowed to close, thus energizing relay coil RR in line 36 so as to permit switch RR- between lines 37 and 38 to move to the upper position. This energizes relay coil 24 and deenergizes relay coil 25. As a result, the timers T, and relay T are reset.
  • relay coil 5 in line 16 is still energized and relay switch 5 in line 17 is still closed, relay coil 6 is energized, closing relay switch 6 in line 51 to energize solenoids 23' and 38.
  • the guide 10 is drawn backward and the knife 37 is operated one cycle to cut the yarn. Traveling guide 11 finally strikes and momentarily closes limit switch 45' and energizes relay coil 19 in line 10. This closes normally open relay switch 19 in line 3 and opens normally closed relay switch 19 in line 16. Since the relay coil 24 in line 37 is now energized, relay, switch 24 in line 3 is closed and the relay coil 4 of line 2 is energized. The timer T, is thus actuated and begins to run.
  • relay T is actuated and changes switch RR, so that relay coil 14 in line 34 is energized and relay coil 15 in line 15 is deenergized.
  • the opening of relay switch 19 in line 16 deenergizes relays 2, 3, 5,6,8 and 9 due to the interruption of the holding circuits therefor.
  • this circuit can, by the omission of appropriate switches and relays, be adapted to control the less complicated embodiment of FIGS. 1-4 and 68.
  • FIGS. 12 and 13 illustrate another embodiment of the invention.
  • the present invention has been applied to a winder conventionally employed hitherto in the spinning and winding up of synthetic fibers, the application having been made without requiring major alterations in the essential part of said winder. It comprises providingin the yarn guide device a traveling guide provided on a loop-shaped flexible member and a fixed guide in the plane through which the yarn is conducted from the delivery roll to the windup bobbin and by causing said fixed guide to make to-and-fro sliding movements with respect to the moving plane of the traveling guide to permit the yarn being delivered to take an optional course.
  • reference numeral 1 indicates the drive roller; 3, the empty bobbin which has been readied for winding the yarn; 2, the windup bobbin being wound; 52, the fixed guide attaching plate; 4 and 51, the guides attached to attaching plate 52; 22, the device for moving the attaching plate; 7, the traverse mechanism; 8, the traverse guide fitted to the traverse mechanism; 11, the traveling guide; 12, the loopshaped flexible member such as a chain or belt; 13, the guide and drive pulleys for effecting the travel of flexible member 12; 41, 42, 43, 44, the limit switches; 21 and 22, the solenoids; 9, the pushout guide; and 6, the yarn delivery guide.
  • Traveling guide 11 fitted to flexible member 12 (usually a chain) travels in the direction of arrow E, and after hooking yarn yat point D, proceeds downwardly in the direction of arrow F.
  • the yarn path becomes as shown with the dot-anddash line in FIG. 12.
  • traveling guide 11 As traveling guide 11 starts traveling around its course, it contacts limit switch 43, thereby actuating solenoid 21 of FIG. 13 to shove out yarn pushout guide 9. Traveling guide 11 passes under this yarn pushout guide 9 and thus below yarn y.
  • limit switch 41 As limit switch 41 is operated and yarn pushout guide 9 is retracted, simultaneously solenoid 22 is actuated and plate 52 equipped with the two fixed guides 4 and 51 lunges forward from its normal position. At this time, yarn y conveyed by traveling guide 11, being hooked thereon is hooked by guide 4 and then guide 51 which have leaped forward before the yarn.
  • limit switch 42 is operated to deenergize 22, the guide 4 and 51 retract with the yarn being still hooked by these guides.
  • traveling guide 11 arrives at the point shown in FIG. 12, the yarn delivered from delivery roller or the spinning machine (both not shown) gets caught in the incised portion provided in the end of empty bobbin 3, which has already been given preparatory rotation to become severed by the inertia of the bobbin and transferred to the fresh windup bobbin 3. Traveling guide 11 still continues its travel until it stops at the point where limit switch 44 is operated.
  • Full bobbin 2 may be replaced with a new bobbin 3 in any conventional manner.
  • Bobbins 2 and 3 may be mounted by suitable arms on a structure, for instance of a triangular configuration, 100.
  • Triangle 100 is revolvably mounted around a center BHinT thereof 101.
  • the yarn is transferred to new bobbin 3 in the manner above described.
  • triangle may be rotated in a clockwise manner by l20. This will, of course, bring new bobbin 3 into the position formerly occupied by bobbin 2.
  • Bobbin 2 on the other hand, will be moved to the position indicated by the dash lines in FIG. 17. At this point, it will be apparent that bobbin 2 may be removed and replaced by a further new empty bobbin. This operation is continued as the windup bobbins rotatively become full of yarn.
  • Guide 4 is for controlling the yarn to be wound up on the bobbin to ensure that the yarn is positioned centrally.
  • the role of the other guide 51 is to keep separate the two lengths of yarn i.e., to hook only the yarn coming from above when stringing the yarn up to empty bobbin 3 and to ensure that the yarn which returns to guide 4 via traveling guide 11 does not get caught on the end of empty bobbin 2.
  • FIG. 15 is a diagram showing the sequence of action of the timer and limit switches. The hereinbefore described yarn hooking operations are carried out in accordance with this diagram.
  • starting of the motor moves the traveling guide until it strikes the limit switch 43, which energizes solenoid 21 so as to push the guide 9 out.
  • the continued movement of the traveling yarn guide next actuates limit switch 41 to deenergize solenoid 21, thus retracting yarn guide 9, and at the same time energizes solenoid 22 to move yarn guides 4 and 51 out.
  • limit switch 42 which deenergizes solenoid 22 and causes withdrawal of guides 4 and 51 to their original positions.
  • limit switch 44 to stop the drive motor for the flexible member, and start a timer which turns the motor on when the bobbin is full.
  • the movement is accomplished by means of a flexible member such as a chain or belt.
  • a flexible member such as a chain or belt.
  • the present invention is not limited to such instances only, but the movement can be carried out by a rectilinear motion by means such as hydraulic cylinder or a curvilinear motion by the provision of the former with linkages.
  • the transfer method of the present invention can also be practiced by merely combining the fixed and traveling guides in the yarn windup operation in specific relative positions. Further, automation can readily be carried out by employing a power source, such as hydraulic, pneumatic or electric, for driving the traveling guide.
  • a power source such as hydraulic, pneumatic or electric
  • the apparatus has the advantages that it can be readily attached to the conventional winders and that the appearance of the yarn package during yarn transfer differs not a whit from that during the conventional windup operation.
  • a method of continuously winding yarn comprising the steps of guiding the yarn from a source thereof toward a windup bobbin position, winding the guided yarn on a windup bobbin at said position while traversing the yarn along the bobbin and simultaneously driving the windup bobbin and an empty bobbin, and when the windup bobbin has become full, engaging the yarn at a point between the yarn source and the point at which it is guided and drawing it tranversely of the direction of its movement and then across the end of the driven empty bobbin, guiding the yarn at additional points spaced from said first mentioned point for dividing the paths along which the yarn moves so that only a single length of the yarn approaches the end of the empty bobbin, and then engaging the yarn by the driven empty bobbin and severing the yarn, whereby the severed end of the yarn coming from the yarn source is engaged with and wound up on the empty bobbin,
  • a yarn windup apparatus comprising means for rotatably supporting a plurality of windup bobbins, bobbins having yarn catching means on the ends thereof and supported in said supporting means, at least one traverse guide for guiding yarn back and forth along at least one bobbin in said bobbin sup porting means, at least one yarn guide for guiding said yarn from a source of yarn to said traversing means, a traveling yarn guide, a flexible member extending in a loop and on which said traveling yarn guide is mounted, and drive means coupled to said flexible member for driving said flexible member, said flexible member extending in a path which crosses the path of the yarn coming to the said guide from the said yarn source transversely thereof and which extends past and adjacent the ends of the bobbins having the yarn catching means thereon, whereby when the flexible member is driven, the traveling yarn guide engages the yarn and draws it transversely and then past the end of an empty bobbin in the yarn su porting means, and when the bobbins are rotatably driven, the yarn is picked
  • An apparatus as claimed in claim 3 further comprising at least one movable yarn guide, and moving means on which said movable yarn guide is mounted, said moving means and movable yarn guide being mounted adjacent the path of said yarn and movable laterally of the path of said yarn and engageable with said yarn o for moving the yarn out of the path of the traveling yarn guide on said flexible member for permitting the traveling yarn guide to pass the yarn without engaging it.
  • An apparatus as claimed in claim 3 further comprising a yarn pressing and severing device adjacent the end of at least one empty bobbin in said bobbin supporting means and adjacent and movable into the path of the yarn drawn adjacent the end of the bobbin by said traveling yarn guide and movable to engage the yarn to move it into engagement with the yarn catching means on the empty bobbin and to sever the yarn.
  • said bobbin supporting means supports two bobbins one at a higher level than the other and on an axis parallel to the other, the lower being the windup bobbin and the upper being an empty bobbin in position to become a windup bobbin, and said yarn guide is a single fixed yarn guide.
  • said bobbin supporting means supports two bobbins side by side on the same axis and there are two yarn guides one above each bobbin, yarn guide moving means on which each of said yarn guides is mounted for moving said yarn guides transversely of the plane of the yarn, said flexible member extending in a closed loop above the bobbins and s downwardly between the bobbins, and actuating means coupled to said yarn guide moving means and positioned adjacent said flexible member and engaged by said traveling yarn guide for moving said yarn guides to permit said traveling yarn guide to move past said yarn without engaging it, and said flexible member drive means being reversible for driving said flexible member in either direction around said loop.
  • said bobbin supporting means supports two bobbins on parallel axes.
  • said yarn guide is a fixed yarn guide, and further comprising two further yarn guides positioned side by side on a line generally parallel to the axis of the bobbins with at least one of the further yarn guides lying outside the ends of the bobbins.
  • said flexible member extending in a path above the further yarn guides past the said at least one yarn guide and then downwardly past the end of the empty bobbin, further yarn guide moving means on which said further yarn guides are mounted and moving said further yarn guides transversely of the path along which said flexible member extends above said further yarn guides, and actuating means coupled to said further yarn guide moving means and positioned adjacent said flexible member and engaged by said traveling yarn guide for moving a said further yarn guides to permit the traveling yarn guide to move past the yarn without engaging it.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Winding Filamentary Materials (AREA)
US740804*A 1964-01-29 1968-05-24 Yarn transfer method in the windup operation Expired - Lifetime US3561688A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP39004003A JPS5025060B1 (en, 2012) 1964-01-29 1964-01-29
JP39020068A JPS5025061B1 (en, 2012) 1964-01-29 1964-04-10
DE1965T0027892 DE1560615B1 (de) 1964-01-29 1965-01-27 Vorrichtung zum UEberfuehren eines mittels Changierung aufzuwickelnden Fadens von einer rotierenden Vollspule auf eine rotierende Leerspule
BR166781/65A BR6566781D0 (pt) 1964-01-29 1965-01-29 Processo e aparelhagem de transferencia do fio na operacao de enrolar
GB4112/65A GB1072761A (en) 1964-01-29 1965-01-29 Continuous yarn winding method and apparatus
FR3808A FR1423275A (fr) 1964-01-29 1965-01-29 Procédé de transfert du fil dans l'opération de bobinage
US740804*A US3561688A (en) 1964-01-29 1968-05-24 Yarn transfer method in the windup operation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP39004003A JPS5025060B1 (en, 2012) 1964-01-29 1964-01-29
JP39020068A JPS5025061B1 (en, 2012) 1964-01-29 1964-04-10
JP2078164 1964-04-14
US740804*A US3561688A (en) 1964-01-29 1968-05-24 Yarn transfer method in the windup operation

Publications (1)

Publication Number Publication Date
US3561688A true US3561688A (en) 1971-02-09

Family

ID=60169795

Family Applications (1)

Application Number Title Priority Date Filing Date
US740804*A Expired - Lifetime US3561688A (en) 1964-01-29 1968-05-24 Yarn transfer method in the windup operation

Country Status (6)

Country Link
US (1) US3561688A (en, 2012)
JP (2) JPS5025060B1 (en, 2012)
BR (1) BR6566781D0 (en, 2012)
DE (1) DE1560615B1 (en, 2012)
FR (1) FR1423275A (en, 2012)
GB (1) GB1072761A (en, 2012)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688998A (en) * 1969-06-19 1972-09-05 Allied Chem Automatic wasteless transfer winding apparatus
US3865321A (en) * 1973-05-25 1975-02-11 Karlsruhe Augsburg Iweka Pneumatic control system for use in automatic yarn transfer system
US3876161A (en) * 1973-04-26 1975-04-08 Karlsruhe Augsburg Iweka Automatic yarn transfer system
US3923260A (en) * 1973-09-14 1975-12-02 Daiwa Spinning Co Ltd Apparatus for doffing without interrupting spinning operation in an open end spinning machine
US3936006A (en) * 1974-05-06 1976-02-03 Textured Yarn Co., Inc. Strand winding
US3948452A (en) * 1972-09-25 1976-04-06 Vyzkumny Ustav Bavlnarsky Open-end spinning machine and method of operating the same
US4002307A (en) * 1974-12-23 1977-01-11 Barmag Barmer Maschinenfabrik Aktiengesellschaft Loss-free winding apparatus
US4103833A (en) * 1975-05-29 1978-08-01 Toray Industries, Inc. Yarn winding apparatus
US4150532A (en) * 1976-11-11 1979-04-24 Battelle Memorial Institute Thread tying device for spinning frame
EP0063932A3 (en) * 1981-04-28 1982-12-01 Celanese Corporation Apparatus for cutting, aspirating and rethreading a traveling filamentary yarn
US4451007A (en) * 1981-01-16 1984-05-29 Toray Industries, Inc. Yarn winding apparatus
DE3721505A1 (de) * 1986-07-05 1988-02-04 Barmag Barmer Maschf Vorrichtung zum aufwickeln eines kontinuierlich laufenden fadens
CN118745600A (zh) * 2024-07-18 2024-10-08 浙江金汇特材料有限公司 一种抗紫外高强度原液着色锦纶6工业丝的生产工艺

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2254736C3 (de) * 1972-11-09 1984-01-19 F.M.N. Schuster GmbH & Co KG, 5030 Hürth Vorrichtung zur Bildung einer Fadenreserve beim Anspulen eines Fadens auf einer Spulenhülse
GB1547884A (en) * 1975-08-20 1979-06-27 Nuova San Giorgio Spa Apparatus for reinserting broken yarn in an open end spinning unit
US4206883A (en) * 1978-10-03 1980-06-10 Rhone-Poulenc-Textile Method and apparatus for transferring textile yarns from a first treatment zone to a second

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822018A (en) * 1929-03-28 1931-09-08 Aceta Gmbh Twisting continuously spun artificial threads
US2296339A (en) * 1941-05-09 1942-09-22 Du Pont Automatic doffing apparatus
US2946526A (en) * 1955-10-21 1960-07-26 Toyo Rayon Co Ltd Continuous method for winding up yarns
US2957635A (en) * 1955-01-21 1960-10-25 Du Pont Yarn winding
DE974536C (de) * 1951-10-25 1961-04-06 Neumuenster Masch App Vorrichtung zum fortlaufenden Aufwickeln endloser Faeden oder Fadenkabel mit zwei abwechselnd zu bewickelnden, gleichachsig nebeneinander angeordneten Spulen
US3083923A (en) * 1960-03-08 1963-04-02 Monsanto Chemicals Transferring and cutting apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL105874C (en, 2012) * 1955-01-19
FR1308576A (fr) * 1961-06-08 1962-11-09 Heberlein & Co Ag Procédé et dispositif pour changer les bobines d'enroulement dans les machines à enrouler et à bobiner les fils

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1822018A (en) * 1929-03-28 1931-09-08 Aceta Gmbh Twisting continuously spun artificial threads
US2296339A (en) * 1941-05-09 1942-09-22 Du Pont Automatic doffing apparatus
DE974536C (de) * 1951-10-25 1961-04-06 Neumuenster Masch App Vorrichtung zum fortlaufenden Aufwickeln endloser Faeden oder Fadenkabel mit zwei abwechselnd zu bewickelnden, gleichachsig nebeneinander angeordneten Spulen
US2957635A (en) * 1955-01-21 1960-10-25 Du Pont Yarn winding
US2946526A (en) * 1955-10-21 1960-07-26 Toyo Rayon Co Ltd Continuous method for winding up yarns
US3083923A (en) * 1960-03-08 1963-04-02 Monsanto Chemicals Transferring and cutting apparatus

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688998A (en) * 1969-06-19 1972-09-05 Allied Chem Automatic wasteless transfer winding apparatus
US3948452A (en) * 1972-09-25 1976-04-06 Vyzkumny Ustav Bavlnarsky Open-end spinning machine and method of operating the same
US3876161A (en) * 1973-04-26 1975-04-08 Karlsruhe Augsburg Iweka Automatic yarn transfer system
US3865321A (en) * 1973-05-25 1975-02-11 Karlsruhe Augsburg Iweka Pneumatic control system for use in automatic yarn transfer system
US3923260A (en) * 1973-09-14 1975-12-02 Daiwa Spinning Co Ltd Apparatus for doffing without interrupting spinning operation in an open end spinning machine
US3936006A (en) * 1974-05-06 1976-02-03 Textured Yarn Co., Inc. Strand winding
US4002307A (en) * 1974-12-23 1977-01-11 Barmag Barmer Maschinenfabrik Aktiengesellschaft Loss-free winding apparatus
US4103833A (en) * 1975-05-29 1978-08-01 Toray Industries, Inc. Yarn winding apparatus
US4150532A (en) * 1976-11-11 1979-04-24 Battelle Memorial Institute Thread tying device for spinning frame
US4451007A (en) * 1981-01-16 1984-05-29 Toray Industries, Inc. Yarn winding apparatus
EP0063932A3 (en) * 1981-04-28 1982-12-01 Celanese Corporation Apparatus for cutting, aspirating and rethreading a traveling filamentary yarn
DE3721505A1 (de) * 1986-07-05 1988-02-04 Barmag Barmer Maschf Vorrichtung zum aufwickeln eines kontinuierlich laufenden fadens
CN118745600A (zh) * 2024-07-18 2024-10-08 浙江金汇特材料有限公司 一种抗紫外高强度原液着色锦纶6工业丝的生产工艺

Also Published As

Publication number Publication date
JPS5025061B1 (en, 2012) 1975-08-20
JPS5025060B1 (en, 2012) 1975-08-20
GB1072761A (en) 1967-06-21
DE1560615B1 (de) 1970-12-23
FR1423275A (fr) 1966-01-03
BR6566781D0 (pt) 1973-07-17

Similar Documents

Publication Publication Date Title
US3561688A (en) Yarn transfer method in the windup operation
US4033104A (en) Method and device for replacing a sliver container
US3820730A (en) Automatic doffing apparatus for textile machine having one or more winding units
US3682403A (en) Apparatus and method for doffing wound packages and donning empty cores
US4535945A (en) Method and device for locating and holding a thread end
US3295775A (en) Method and apparatus for readying the winding operation of yarn supply coils on coil winding machines
US3695017A (en) Automatic yarn piecing apparatus for spindleless spinning machine
US4340187A (en) Bobbin changing apparatus
US3279710A (en) Yarn-package winding machine with automatic coil exchanging and yarn tying devices
US3507453A (en) Continuous yarn winding machine
US4210293A (en) Strand transfer
US3111280A (en) Coil winding machine with automatic coil-exchanging and yarn-tying devices
CN104787622A (zh) 一种纺丝换筒自动生头控制系统及其控制方法
JPS59187631A (ja) リング精紡機の上方に設けられたボビンクリ−ルからのボビンの抜取りおよびボビンクリ−ルへの装填を行うための装置
US3077311A (en) Method and device for servicing multistation coil winding machines
US3901456A (en) Automatic winding machine
US3879925A (en) Rotary doffer in automatic doffing apparatus
GB1443848A (en) Apparatus for winding textile yarn
US3913853A (en) Automatic winding machine
US3478504A (en) Method of and apparatus for remedying a thread break
US3029031A (en) Method and apparatus for preparing bobbins
US4987645A (en) Automatic piecing of overlapped leading and trailing ends of slivers in a textile machine
US3031149A (en) Method and means for readying a yarn coil to be unwound
US3154904A (en) Yarn spinning and winding apparatus
ITMI950025A1 (it) Sistema di distribuzione e movimentazione delle spole alle stazioni di raccatura di una raccatrice automatica