EP2145849B1 - Spulmaschine - Google Patents

Spulmaschine Download PDF

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Publication number
EP2145849B1
EP2145849B1 EP09151499A EP09151499A EP2145849B1 EP 2145849 B1 EP2145849 B1 EP 2145849B1 EP 09151499 A EP09151499 A EP 09151499A EP 09151499 A EP09151499 A EP 09151499A EP 2145849 B1 EP2145849 B1 EP 2145849B1
Authority
EP
European Patent Office
Prior art keywords
package
free length
yarn
winding
traverse
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.)
Active
Application number
EP09151499A
Other languages
English (en)
French (fr)
Other versions
EP2145849A1 (de
Inventor
Tetsuya Hori
Kinzo Hashimoto
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.)
TMT Machinery Inc
Original Assignee
TMT Machinery Inc
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
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Publication of EP2145849A1 publication Critical patent/EP2145849A1/de
Application granted granted Critical
Publication of EP2145849B1 publication Critical patent/EP2145849B1/de
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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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/10—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B65H54/385—Preventing edge raising, e.g. creeping arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B65H54/388—Preventing the yarn from falling off the edge of the package
    • 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
    • B65H67/048—Continuous winding apparatus for winding on two or more winding heads in succession having winding heads arranged on rotary capstan head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a technique, for a yarn winder, of winding a yarn around a bobbin to form a package, and to a yarn winder.
  • a yarn winder for a yarn winder, of winding a yarn around a bobbin to form a package, a yarn winder is known in which a spiral groove is formed in a surface of a cylindrical member (cylindrical grooved cam) so that rotation of the cylindrical member allows a traverse guide to reciprocate at a speed corresponding to a rotation speed of the cylindrical member and the inclination of the groove, thus traversing the yarn (for example, the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 5-238645 ).
  • the shape of the groove in the cylindrical member causes a traverse range to be fixed. This prevents a traverse width from being changed during winding.
  • a yarn winder which includes a traverse guide that engages with and traverses the yarn, and a traverse guide driving motor that moves the traverse guide (for example, the Unexamined Japanese Patent Application Publication (Tokkai) No. 2007-137615 ).
  • the yarn winder is configured such that controlling driving of the traverse guide driving motor enables traversing movement to be controlled, thus allowing the traverse width to be changed during winding.
  • the yarn winder winds various types of yarns.
  • a phenomenon called a yarn stitching may occur in which the yarn slips down an end surface of the package during winding. This may form defective packages.
  • taper winding in which the axial direction winding width of the package is gradually reduced may be used to form a package.
  • the traverse width can be easily changed during winding, allowing a package to be easily formed by taper winding.
  • the configuration of a device that moves the traverse guide is disadvantageously difficult.
  • An object of the present invention is to provide a device and method for a yarn winder which enables a package to be manufactured by taper winding.
  • DE 10241552 A1 is concerned with a spool and a method of spooling.
  • a yarn winder according to a first aspect of the present invention is provided in accordance with claim 1 below.
  • a yarn winder corresponds to the yarn winder according to the present invention wherein from beginning of winding of the package until end thereof, the free length is increased to allow taper winding to be performed.
  • a yarn winder corresponds to the yarn winder according to the present invention wherein the free length changing means increases the free length by moving the traverse device toward the upstream side of the contact roller in the advancing direction of the yarn.
  • a yarn winder corresponds to the yarn winder according to the present invention wherein the free length changing means comprises a position sensor that senses an elevating position and a lowering position of the traverse device, and includes an elevating and lowering amount control means for sensing and controlling an elevating and lowering amount of the traverse device which is preset based on the package diameter and a free length amount.
  • the free length changing means comprises a position sensor that senses an elevating position and a lowering position of the traverse device, and includes an elevating and lowering amount control means for sensing and controlling an elevating and lowering amount of the traverse device which is preset based on the package diameter and a free length amount.
  • a yarn winder corresponds to the yarn winder according to the present invention wherein the free length changing means controls movement of the traverse device according to amount of change in winding diameter of the package and amount of increase in free length.
  • a yarn winding method according to a second aspect of the present invention is provided in accordance with claim 6 below.
  • the present invention exerts the following effects.
  • the free length is substantially increased to allow the winding to be performed such that the resulting package includes the tapered end surface.
  • the package can be formed by taper winding. Furthermore, even a yarn that is likely to undergo a yarn stitching can be wound without undergoing the yarn stitching.
  • the free length is increased to allow taper winding to be performed.
  • the package can be formed by taper winding. Furthermore, even the yarn that is likely to undergo the yarn stitching can be wound without undergoing the yarn stitching.
  • the winding is performed with the free length partly increased and reduced so that the free length is entirely increased consistently with the package diameter.
  • the package can be formed by taper winding.
  • even the yarn that is likely to undergo the yarn stitching can be wound without undergoing the yarn stitching. This also enables prevention of a saddle bag shape phenomenon in which a yarn density concentrates at yarn turn portions to make opposite ends of the package higher than a central portion of the package.
  • the free length changing means increases the free length by moving the traverse device toward the upstream side of the contact roller in the advancing direction of the yarn.
  • the free length can be increased with the contact roller always kept in contact with the package. Consequently, even with an increase in free length, the yarn traversed by the traverse device can be appropriately received and appropriately delivered to an outer periphery of the package. This enables prevention of possible formation of a defective package caused by improper winding or the like.
  • the free length changing means comprises the position sensor that senses the elevating position and lowering position of the traverse device, and includes the elevating and lowering amount control means for sensing and controlling the elevating and lowering amount of the traverse device which is preset based on the package diameter and the free length amount.
  • the position of the traverse device can be fed back to the control of the free length, thus enabling the free length to be accurately controlled to a desired value.
  • the free length changing means controls the movement of the traverse device according to the amount of change in the winding diameter of the package and the amount of increase in free length.
  • the traverse device can be moved taking the shape of the package and the amount of increase in free length into account. Consequently, the shape of the package and the amount of increase in free length can be fed back to the control of the free length. Therefore, the free length can be accurately controlled to the desired value.
  • Embodiments of the second aspect of the present invention provide the yarn winding method of forming the package, wherein during the package formation, from the beginning of winding until the end thereof, the free length is substantially increased to allow the winding to be performed such that the resulting package includes the tapered end surface.
  • the package can be formed by taper winding. Furthermore, even a yarn that is likely to undergo a yarn stitching can be wound without undergoing the yarn stitching.
  • FIG. 1 is a front view of the yarn winder 1 according to the embodiment of the present invention.
  • Figure 2 is a diagram showing a system of the yarn winder 1.
  • the winder 1 is a yarn winder that winds synthetic fibers (synthetic fiber yarn) 2 as a yarn, around a bobbin 3 to form a package 4 ( Figure 6 ).
  • the yarn winder that winds the synthetic fibers (synthetic fiber yarn) 2 will be described below. However, the present invention is not limited to this aspect.
  • the yarn winder 1 may wind spun fiber yarn such as a cotton yarn.
  • the yarn winder 1 includes a machine frame 5, a turret plate 6, a slide box 16, a traverse device 7, a contact roller 8, and a free length changing means 9.
  • components of the yarn winder 1 are electrically connected to a control section 80.
  • the control section 80 is configured as a well-known microcomputer, and includes a CPU as an arithmetic device, and storage means such as a ROM, a RAM, and an external storage device.
  • the control section 80 controls driving of various driving motors based on signals generated by various sensors described below.
  • the turret plate 6 is provided on the machine frame 5 and can be pivotally moved around a rotating shaft 11 by a rotational driving device (not shown in the drawings).
  • Two bobbin holders 12 on which bobbins 3 are installed are protrusively provided on the turret plate 6 at positions where the bobbin holders 12 are symmetric with respect to the rotating shaft 11.
  • the turret plate 6 is rotated by the rotational driving device so that one of the bobbin holders 12 is placed at an upper, winding position, whereas the other is placed at a lower, standby position; the positions of the two bobbin holders 12 can be changed to each other.
  • the two bobbin holders 12, provided on the turret plate 6, are connected to respective driving motors 27 and rotated by driving of the driving motors 27.
  • the driving motors 27 are electrically connected to the control section 80 so that the driving of the driving motors 27 is controlled by the control section 80.
  • a bobbin holder rotation sensor 35 is provided on the each of the bobbin holders 12 and electrically connected to the control section 80. The bobbin holder rotation sensor 35 senses the rotation speed of the bobbin holder 12 to transmit a sensing signal to the control section 80.
  • the slide box 16 is guided along rails 17, 17 provided at opposite ends of the slide box 16 so as to extend in a vertical direction in the machine frame 5.
  • the slide box 16 is thus movable in the vertical direction in the machine frame 5.
  • the slide box 16 is elevated and lowered by the free length changing means 9, described below.
  • the slide box 16 elevates to separate the traverse device 7, positionally fixed to the slide box 16, from the contact roller 8 ( Figure 6 ).
  • the slide box 16 lowers to approach the contact roller 8.
  • the traverse device 7 traverses the yarn 2 and is positionally fixed to the slide box 16.
  • the traverse device 7 includes a traverse cam 30, a traverse guide 31, and a traverse motor 28.
  • the traverse cam 30 is rotatably supported in the slide box 16 and includes a spiral traverse cam groove formed on a peripheral surface thereof. Rotationally driving the traverse cam 30 causes the traverse guide 31 to move along the traverse cam groove to reciprocate in an axial direction of the traverse cam 30.
  • the traverse guide 31 guides the traveling yarn 2 to the contact roller 8 while traversing the yarn 2 in a lateral direction.
  • the traverse motor 28 rotationally drives the traverse cam 30.
  • the traverse motor 28 is electrically connected to the control section 80 so that driving of the traverse motor 28 is controlled by the control section 80.
  • the control section 80 controls the rotation number of the traverse motor 28 so as to enable a change in traverse speed.
  • the contact roller 8 is located on a downstream side of the traverse device 7 in the advancing direction of the yarn 2. During formation of the package 4, the contact roller 8 rotates in conjunction with the package 4 to receive the yarn 2 traversed by the traverse device 7 to deliver the yarn 2 to an outer periphery of the package 4.
  • the contact roller 8 is rotatably supported on a first end 13a side of an arm 13.
  • a second end 13b of the arm 13 is inserted around a slide bar 14 supported in the slide box 16.
  • the second end 13b can slide up and down with respect to the slide box 16. That is, the contact roller 8 is configured to be able to slide up and down with respect to the slide box 16 via the arm 13.
  • a rotation sensor 40 is provided on the contact roller 8 to sense the rotation speed thereof.
  • the contact roller 8 is connected to a motor 37.
  • the contact roller 8 is rotationally driven by the motor 37 during a yarn hooking operation in which to start forming the package 4, an operator hooks the yarn 2 on the empty bobbin 3 and during a yarn switching operation in which when the formation of the package 4 is completed, the turret plate 6 rotates to automatically switch the yarn 2 to the standing-by empty bobbin 3.
  • the rotation sensor 40 senses the rotation speed of the contact roller 8 rotating in conjunction with the package 4. Based on the rotation speed, the rotation sensor 40 senses an outer peripheral speed of the package 4.
  • the rotation sensor 40 is electrically connected to the control section 80.
  • the control section 80 controls the driving of the driving motor 27 for the bobbin holder 12 so as to make the rotation speed sensed by the rotation sensor 40 constant. Specifically, when the value sensed by the rotation sensor 40 is smaller than a predetermined value corresponding to a winding speed, the control section 80 performs control such that the rotation speed of the driving motor 27 is increased. In contrast, when the sensed value is larger than the predetermined value, the control section 80 performs control such that the rotation speed of the driving motor 27 is reduced.
  • the free length changing means 9 elevates and lowers the slide box 16 to enable a change in the free length FL ( Figure 6 ) of the yarn 2 between the contact roller 8 and the traverse device 7.
  • the free length changing means 9 includes a ball screw mechanism 15, a position sensor 18, and a cylinder 19.
  • the free length FL refers to the free length of the yarn 2 over which the yarn 2 engaged with the traverse device 7 travels after being released from the traverse device 7 and before coming into contact with a peripheral surface of the contact roller 8.
  • the ball screw mechanism 15 is a section that elevates and lowers the slide box 16.
  • the ball screw mechanism 15 includes a screw bar 20. a ball nut 21, and an elevating and lowering driving section 22.
  • the screw bar 20 is located so as to extend in the vertical direction in the machine frame 5.
  • the screw bar 20 is supported so as to be rotatable with respect to the machine frame 5.
  • the ball nut 21 is threadably fitted around the screw bar 20 and engaged with the slide box 16 to elevate and lower the slide box 16.
  • the elevating and lowering driving section 22 rotationally drives the screw bar 20.
  • the elevating and lowering driving section 22 rotates the screw bar 20 forward and backward to elevate and lower the slide box 16.
  • the elevating and lowering driving section 22 is composed of a motor 23, a first gear 24, a belt 25, and a second gear 26.
  • the motor 23 is connected to the first gear 24.
  • the belt 25 is connected between the first gear 25 and the second gear 26.
  • the screw bar 20 is connected to the second gear 26.
  • the rotational driving force of the motor 23 is transmitted to the first gear 24, the belt 25, and the second gear 26 in this order to rotate the screw bar 20.
  • the motor 23 is electrically connected to the control section 80 so that the driving of the motor 23 is controlled by the control section 80.
  • the cylinder 19 uses a cylinder pressure to carry most of the weight of the slide box 16 to allow the above-described elevating and lowering driving section 22 to elevate and lower the slide box 16 under a weak driving force.
  • the cylinder pressure of the cylinder 19 is adjusted by an air supply section 36.
  • a sensor 29 is provided in the slide box 16 to sense the position of the contact roller 8 relative to the slide box 16 to sense an increase in the diameter of the package 4.
  • the sensor 29 is provided opposite a direction in which the contact roller 8 moves.
  • the contact roller 8 kept in contact with an outer peripheral surface of the package 4 moves upward in conjunction with the increase in the diameter of the package 4.
  • the sensor 29 senses the contact roller 8 moving upward in conjunction with the increase in the diameter of the package 4 to sense the increase in the diameter of the package 4.
  • the contact roller 8 kept in contact with the package 4 moves upward to reduce a distance between the contact roller 8 and the sensor 29.
  • the sensor 29 is turned on.
  • the contact roller 8 is separated from the sensor 29 by a distance that is equal to or greater than the predetermined value
  • the sensor 29 is turned off.
  • the sensor 20 is electrically connected to the control section 80.
  • the sensor 29 transmits a sensing signal to the control section 80.
  • the control section 80 determines that the slide box 16 is located below a steady-state position.
  • the control section 80 thus transmits a control signal for elevation of the ball nut 21 to the ball screw mechanism 15 to allow the slide box 16 to be moved upward to the steady-state position. That is, control (thickening control) is performed so as to maintain the free length FL constant with respect to the increasing diameter of the package.
  • the position sensor 18 is provided opposite the second gear 26, which rotationally drives the screw bar 20 of the elevating and lowering driving section 22.
  • the position sensor 18 senses rotation of the second gear 26 to sense the position of the slide box 16 and thus the position of the traverse device 7, supported in the slide box 16.
  • the position sensor 18 is electrically connected to the control section 80.
  • the position sensor 18 transmits a sensing signal to the control section 80.
  • the control section 80 transmits the control signal for elevation of the ball nut 21 to the ball screw mechanism 15.
  • the motor 23 of the elevating and lowering driving section 22 provides rotational driving.
  • the rotational driving force of the motor 23 is transmitted to the second gear 26 to rotate the second gear 26.
  • the position sensor 18 When placed opposite a tooth tip of the rotating second gear 26, the position sensor 18 is turned on. When placed opposite a tooth root of the second gear 26, the position sensor 18 is turned off.
  • the second gear 26 includes a predetermined number of teeth. Thus, counting the number of the teeth allows rotation angle of the second gear 26 to be determined.
  • the rotation angle of the screw bar 20 is determined from the rotation angle of the second gear 26.
  • the movement distance of the ball nut 21 is determined from the rotation angle of the screw bar 20.
  • the position of the slide box 16 supported by the ball nut 21 is sensed to sense the position of the traverse device 7.
  • the free length changing means 9 includes the position sensor 18, which senses the position of the traverse device 7.
  • the control section 80 controls the elevation amount of the traverse device 7 which is preset based on the package diameter and a free length amount.
  • Figure 3 is a diagram showing a relationship between the free length FL and the traverse delay.
  • the free length FL refers to the free length of the yarn 2 over which the yarn 2 engaged with the traverse device 7 travels after being released from the traverse device 7 and before coming into contact with the peripheral surface of the contact roller 8.
  • the free length FL can be increased by separating the traverse device 7 (traverse guide 31) from the contact roller 8. With a constant angle (winding angle) between a straight line perpendicular to the axial direction of the bobbin 3 and the direction of the yarn 2 wound around the bobbin 3, the increased free length FL increases a difference (traverse delay) between an axial position (the position of the traverse guide 31) where the yarn 2 is actually traversed and an axial position where the yarn 2 is actually received by the contact roller 8.
  • the yarn 2 is received by the controller 8 at an axial direction position N1.
  • the traverse delay is D1. That is, even though the traverse guide 31 reaches an end of a traverse range, the yarn 2 is actually wound around the package 4 at a position closer to an axial direction center by a distance corresponding to the traverse delay D1.
  • the yarn 2 is received by the contact roller 8 at an axial direction position N2. In this case, the traverse direction delay is D2.
  • the yarn 2 is actually wound around the package 4 at a position closer to the axial direction center by a distance corresponding to the traverse delay D2.
  • increasing the free length FL from FL1 to FL2 results in a difference (D2 - D1) in traverse delay.
  • the yarn 2 is thus wound around the package 4 at the position closer to the axial direction center by the distance corresponding to the difference (D2 - D1) in traverse delay. Therefore, increasing the free length FL allows the position where the yarn 2 is wound around the package 4 to be gradually moved closer to the axial direction center.
  • Figure 4 is a diagram showing a relationship between the amount of change in free length FL and the amount of decrease in the winding width of the package 4.
  • Figure 5 is a sectional view of the package 4 resulting from winding with free length FL maintained constant (4a) and winding with the free length FL continuously varied (4b).
  • a continuous increase in free length FL reduces the winding width of the package 4, while increasing the amount of decrease in the winding width of the package 4.
  • the amount of decrease in the winding width of the package 4 refers to the amount of decrease in winding width on one side of the package 4 (D1, D2 in Figure 5 ).
  • maintaining the free length FL constant allows the formation of the package 4a with the constant winding width (as shown by the alternate long and two short dashes line in Figure 5 ).
  • Continuously varying the free length FL allows the package 4b to be formed by taper winding (as shown by a solid line in Figure 5 ).
  • continuously increasing the free length FL allows the package 4 to be formed by taper winding, in which the winding width of the package 4 is gradually reduced. That is, by performing control for continuously increasing the free length FL, the yarn winder 1 enables the package 4 to be formed by taper winding.
  • the yarn winder 1 elevates and lowers the traverse device 7 to perform the control for continuously increasing the free length FL.
  • the traverse device 7 is elevated and lowered by elevating and lowering the slide box 16.
  • Figure 6 is a diagram showing the control for maintaining the free length FL constant with respect to the increasing diameter of the package 4 during the formation of the package 4.
  • Figure 7 is a diagram showing the control for continuously increasing the free length FL consistently with the diameter of the package 4 during the formation of the package 4.
  • the sensor 29 transmits the sensing signal to the control section 80.
  • the control section 80 drives the elevating and lowering driving section 22 of the ball screw mechanism 15 to elevate the slide box 16 by a distance corresponding to the increase dr in the diameter of the package 4.
  • Control is performed such that the slide box 16 is elevated to lower the contact roller 8 relative to the slide box 16 so as to return the contact roller 8 to the original position thereof with respect to the slide box 16.
  • the free length FL is maintained constant by performing control for elevating the slide box 16 by the distance corresponding to the increase in package diameter. Therefore, for a continuous increase in free length FL, the slide box 16 needs to be elevated by a distance greater than the increase in package diameter.
  • the yarn winder 1 elevates the slide box 16 by the distance corresponding to the increase in package diameter, and further drives the elevating and lowering driving section 20 of the ball screw mechanism 15 to continuously elevate the slide box 16 so as to achieve the desired free length FL.
  • the contact roller 8 lowers relative to the slide box 16 under the weight of the slide box 16, while keeping in contact with the package 4.
  • the traverse device 7 is fixed to the slide box 16 and thus elevates together with the slide box 16.
  • the free length FL of the yarn 2 between the traverse device 7 and the contact roller 8 is continuously increased ( Figure 7B ).
  • Figure 8 is a diagram showing a relationship between the free length FL and the winding diameter d of the package 4 which relationship is observed when the free length FL is continuously increased.
  • Figure 9 is a diagram showing a relationship between the free length FL and the winding diameter (d) of the package 4 which relationship is observed when the free length FL is constant.
  • the yarn winder 1 controls the free length FL by elevating the slide box 16.
  • the slide box 16 is elevated by the free length changing means 9.
  • the free length changing means 9 controls the elevation of the slide box 16 according to the amount of change (the amount of increase) in the winding diameter of the package 4 and the elevation amount of the slide box 16, which is derived from the increase amount of the free length FL.
  • the elevation amount of the slide box 16 is the sum of the "amount of increase in the diameter of the package 4 during the formation of the package 4" and the "amount of increase in free length FL".
  • the “amount of increase in free length FL" is calculated from a precalculated “package diameter calculated value” and a “set value” set by a combination of the winding diameter of the package 4 and the amount of increase in free length FL.
  • the above-described "package diameter calculated value” is calculated from the “rotation number of the contact roller 8", the “diameter of the contact roller 8", and the “rotation number of the bobbin holder 12".
  • the combination of the " winding diameter of the package 4" and the “amount of increase in free length FL" is preset.
  • the “set value” is set so as to exhibit such a relationship as shown in Figure 8A .
  • the elevation amount of the slide box 16 will be specifically described with reference to Figure 8 .
  • the free length FL with respect to the winding start diameter (d0) of the package 4 is set to FL0.
  • the free length FL with respect to the winding diameter (d1) of the package 4 is set to FL1.
  • the elevation amount of the slide box 16 is then calculated.
  • the free length FL with respect to the winding diameter (d2) of the package 4 is set to FL2.
  • the elevation amount of the slide box 16 is then calculated.
  • the free length FL is continuously increased to gradually reduce the winding width of the package 4 as shown in Figure 8B .
  • the free length FL is maintained constant as shown in Figure 9A
  • the winding width of the package 4 remains constant as shown in Figure 9B .
  • Figure 10 is a diagram showing a relationship between time required to wind the yarn into the package 4 and the elevation amount of the slide box 16.
  • a solid line in Figure 10 shows a variation in the elevation amount of the slide box 16 observed when the free length FL is continuously increased.
  • An alternate long and two short dashes line in Figure 10 shows a variation in the elevation amount of the slide box 16 observed when the free length FL is constant.
  • the yarn winder 1 elevates the slide box 16 as the yarn 2 is wound around the bobbin 3 (as winding time elapses). That is, as described above, the control (thickening control) for maintaining the free length FL constant is performed with respect to the increasing package diameter of the package 4 resulting from winding of the yarn 2 around the bobbin 3. Furthermore, as shown by the solid line in Figure 10 , even with the free length FL continuously increased, the package diameter of the package 4 increases as described above. Thus, the yarn winder 1 elevates the slide box 16 with the increase in package diameter taken into account.
  • a yarn density may concentrate at portions of the package 4 in which the yarn 2 is turned and which correspond to the opposite ends of the package 4, to cause a saddle bag shape phenomenon in which the opposite ends of the package 4 are higher than a central portion thereof.
  • an operation may be performed which, with the package 4 and the contact roller 8 kept in contact with each other, temporarily increases and then reduces the free length FL back to the original value during the formation of the package 4.
  • the free length FL is continuously increased.
  • the yarn winder 1 according to the present invention by repeatedly increasing and reducing the free length FL to gradually increase the free length FL instead of continuously increasing the free length FL, can exert similar effects. That is, the free length FL is controlled so as to, in spite of a temporary reduction, be gradually increased over the period during which the package 4 is formed. Therefore, the saddle bag shape phenomenon and yarn stitching can be prevented by repeating the operation of temporarily increasing and then reducing the free length FL back to the original value, that is, repeatedly increasing and reducing the free length FL to partly increase and reduce the free length FL. An operation of substantially increasing the free length FL while repeatedly increasing and reducing the free length FL will be described below.
  • Figure 11 is a diagram showing a relationship between the duration of winding of the package 4 and the elevation amount of the slide box 16 which relationship is observed when the free length FL is substantially increased while repeatedly increased and reduced.
  • a solid line in Figure 11 indicates a variation in the elevation amount of the slide box 16 observed when the free length FL is substantially increased while repeatedly increased and reduced.
  • An alternate long and two short dashes line in Figure 11 indicates a variation in the elevation amount of the slide box 16 observed when the free length FL is maintained constant.
  • the free length changing means 9 of the yarn winder 1 gradually increases the free length FL. This gradually increases the difference between the axial direction position where the yarn 2 is traversed and the axial direction position where the yarn 2 is received by the contact roller 8, that is, the traverse delay. Consequently, when the yarn 2 is wound, the axial direction winding width of the package is gradually reduced. As a result, the package 4 can be formed by taper winding, allowing even a yarn that is likely to undergo yarn stitching to be wound without undergoing the yarn stitching.
  • the free length changing means 9 of the yarn winder 1 gradually increases the free length FL by moving the traverse device 7 toward the upstream side of the contact roller 8 in the advancing direction of the yarn 2.
  • the free length FL can be increased with the contact roller 8 always kept in contact with the package 4. Consequently, even with an increase in free length FL, the yarn 2 traversed by the traverse device 7 can be appropriately received and then appropriately delivered to the outer periphery of the package 4. This enables prevention of possible formation of a defective package caused by improper winding or the like.
  • the free length changing means 9 of the yarn winder 1 includes the position sensor 18, which senses the position of the traverse device 7, to control movement of the traverse device 7 according to a sensing result provided by the position sensor 18.
  • the position of the traverse device 7 can be fed back to the control of the free length FL, allowing the free length FL to be accurately controlled to the desired value.
  • the position sensor 18 senses the position of the slide box 16 to determine whether or not the elevating position of the slide box 16 is correct. This enables prevention of possible formation of a defective package caused by improper winding or the like.
  • the free length changing means 9 of the yarn winder 1 controls the movement of the traverse device 7 according to an increase in the winding diameter of the package 4 and the amount of increase in free length FL.
  • the taper of the package 4 can be set to any shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)

Claims (6)

  1. Garnwickelmaschine (1), die einen Garnkörper bildet, wobei die Garnwickelmaschine umfasst:
    eine Kontaktwalze (8), die den Garnkörper während der Garnkörperbildung berührt;
    eine Vorschubeinrichtung (7), die sich an einer stromaufwärtigen Seite der Kontaktwalze (8) in einer Vortriebsrichtung eines Garns befindet; und
    eine freie-Länge-Änderungseinrichtung (9) zum Ermöglichen einer Änderung einer freien Länge des Garns zwischen der Kontaktwalze (8) und der Vorschubeinrichtung (7) während der Garnkörperbildung, dadurch gekennzeichnet, dass:
    die Garnwickelmaschine derart angeordnet ist, dass während der Garnkörperbildung die freie Länge wesentlich vergrößert wird, um zuzulassen, dass ein Wickeln derart ausgeführt wird, dass der resultierende Garnkörper eine konisch zulaufende Endoberfläche umfasst; und
    dadurch, dass die Garnwickelmaschine derart angeordnet ist, dass ein Wickeln so ausgeführt wird, dass die freie Länge wiederholt vergrößert und verringert wird, um die freie Länge übereinstimmend mit dem Garnkörperdurchmesser graduell zu vergrößern.
  2. Garnwickelmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Garnwickelmaschine derart angeordnet ist, dass vom Beginn des Wickelns des Garnkörpers bis zum Ende davon die freie Länge vergrößert wird, um zuzulassen, dass ein konisches Wickeln durchgeführt wird.
  3. Garnwickelmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die freie-Länge-Änderungseinrichtung (9) die freie Länge durch Bewegen der Vorschubeinrichtung (7) zu der stromaufwärtigen Seite der Kontaktwalze (8) in der Vortriebsrichtung des Garns hin vergrößert.
  4. Garnwickelmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die freie-Länge-Änderungseinrichtung (9) einen Positionssensor (18) umfasst, der eine Hebeposition und eine Senkposition der Vorschubeinrichtung (7) wahrnimmt, und eine Hebe- und Senkbetrag-Steuereinrichtung (80) zum Wahrnehmen und Steuern eines Hebe- und Senkbetrags der Vorschubeinrichtung (7) umfasst, die basierend auf dem Garnkörperdurchmesser und einem freie-Länge-Betrag voreingestellt ist.
  5. Garnwickelmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die freie-Länge-Änderungseinrichtung (9) angeordnet ist, um eine Bewegung der Vorschubeinrichtung (7) gemäß einem Änderungsbetrag des Wicklungsdurchmessers des Garnkörpers und einem Erhöhungsbetrag der freien Länge zu steuern.
  6. Garnwickelverfahren des Bildens eines Garnkörpers, wobei das Verfahren dadurch gekennzeichnet ist, dass während der Garnkörperbildung, vom Beginn des Wickelns bis zum Ende davon, eine freie Länge eines Garns zwischen einer Kontaktwalze (8) und einer Vorschubeinrichtung (7) während der Garnkörperbildung wesentlich vergrößert wird, um zuzulassen, dass ein Wickeln derart ausgeführt wird, dass der resultierende Garnkörper eine konisch zulaufende Endoberfläche umfasst, und dadurch, dass das Wickeln so ausgeführt wird, dass die freie Länge wiederholt vergrößert und verringert wird, um die freie Länge übereinstimmend mit dem Garnkörperdurchmesser graduell zu vergrößern.
EP09151499A 2008-07-18 2009-01-28 Spulmaschine Active EP2145849B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008187790A JP4523053B2 (ja) 2008-07-18 2008-07-18 糸条巻取機

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EP2145849A1 EP2145849A1 (de) 2010-01-20
EP2145849B1 true EP2145849B1 (de) 2012-08-01

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EP4245705A1 (de) * 2022-03-16 2023-09-20 TMT Machinery, Inc. Garnwickelmaschine

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JP5730557B2 (ja) * 2010-12-14 2015-06-10 Ｔｍｔマシナリー株式会社 糸条巻取機
CN102351113A (zh) * 2011-06-27 2012-02-15 苏州帝瀚环保科技有限公司 一种过滤纸筒缺纸检测装置
CN102390762B (zh) * 2011-07-15 2014-06-11 郑州中远氨纶工程技术有限公司 长丝纤维卷绕装置及卷绕方法
JP2015178403A (ja) * 2014-03-19 2015-10-08 村田機械株式会社 糸巻取機及び巻取方法
CH709606A1 (de) * 2014-05-08 2015-11-13 Rieter Ag Maschf Verfahren zum Betrieb einer Textilmaschine, die der Herstellung von Vorgarn dient, sowie Textilmaschine.
CN104058300A (zh) * 2014-06-13 2014-09-24 中山市宏图精密机械制造有限公司 一种测量空气包覆纱机卷筒直径及卷筒上纱线厚度的方法
CN107472991B (zh) * 2017-07-17 2023-07-07 苏州金纬化纤装备有限公司 一种纱线络筒机横动装置
CN107310971A (zh) * 2017-07-21 2017-11-03 袁卫华 一种不锈钢丝自动补偿排线装置
KR102073909B1 (ko) * 2018-04-11 2020-02-05 일진에이테크 주식회사 권폭 조정 장치
CN108821020A (zh) * 2018-08-09 2018-11-16 扬州市源联化纤有限公司 一种纺织用化纤纤维收线装置
CN111003585B (zh) * 2019-12-23 2022-03-22 合肥学院 一种绕线设备的定向旋转机械装置
CN115379998B (zh) * 2020-04-11 2024-12-24 欧瑞康纺织有限及两合公司 用于卷绕机的卷绕转台的旋转控制的方法和卷绕机

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KR20100009454A (ko) 2010-01-27
CN101628671B (zh) 2012-12-05
KR101249304B1 (ko) 2013-04-01
JP2010023989A (ja) 2010-02-04
JP4523053B2 (ja) 2010-08-11
EP2145849A1 (de) 2010-01-20
CN101628671A (zh) 2010-01-20

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