EP4349753A2 - Garnwickler - Google Patents

Garnwickler Download PDF

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Publication number
EP4349753A2
EP4349753A2 EP24159047.0A EP24159047A EP4349753A2 EP 4349753 A2 EP4349753 A2 EP 4349753A2 EP 24159047 A EP24159047 A EP 24159047A EP 4349753 A2 EP4349753 A2 EP 4349753A2
Authority
EP
European Patent Office
Prior art keywords
traverse
predetermined direction
bobbin
yarn
controller
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.)
Pending
Application number
EP24159047.0A
Other languages
English (en)
French (fr)
Other versions
EP4349753A3 (de
Inventor
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
Application filed by TMT Machinery Inc filed Critical TMT Machinery Inc
Publication of EP4349753A2 publication Critical patent/EP4349753A2/de
Publication of EP4349753A3 publication Critical patent/EP4349753A3/de
Pending legal-status Critical Current

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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
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2893—Superposed traversing, i.e. traversing or other movement superposed on a traversing movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/14—Pulleys, rollers, or rotary bars
    • 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
    • B65H54/20—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 forming multiple packages
    • 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
    • B65H54/2818—Traversing devices driven by rod
    • 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
    • B65H54/2836—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn
    • B65H54/2839—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn counter rotating guides, e.g. wings
    • 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
    • B65H54/2881—Traversing devices with a plurality of guides for winding on a plurality of bobbins
    • 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
    • B65H54/40—Arrangements for rotating packages
    • B65H54/52—Drive contact pressure control, e.g. pressing 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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control 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
    • B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
    • 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 yarn winder.
  • JP 2012-158436 A and JP 2019-214474 A disclose a yarn winder that winds a plurality of yarns around a plurality of bobbins to form a plurality of packages. More specifically, the yarn winder includes a bobbin holder and a plurality of traverse devices (hereinafter, traverse devices).
  • the bobbin holder extends along a predetermined direction and holds a plurality of bobbins arranged in the predetermined direction.
  • Each of the plurality of traverse devices includes a traverse guide for traversing the yarn along the predetermined direction, and is arranged corresponding to each of the plurality of bobbins.
  • the plurality of yarns are each traversed in the predetermined direction by the plurality of traverse devices while simultaneously rotating the plurality of bobbins by the bobbin holder, whereby the yarns are simultaneously wound around the plurality of bobbins.
  • lengthening of the bobbin holders has been promoted so that more bobbins can be held at one time.
  • various problems have occurred, and countermeasures against these problems have been taken.
  • the above-described yarn winder is configured to adjust the shape of the package by applying a contact pressure to the outer circumference of the package by a contact roller extending substantially parallel to the bobbin holder.
  • the bobbin holder is cantilevered substantially horizontally. In such a configuration, as the package gets thicker (the weight of the package increases) during the winding of the yarn, the bobbin holder gradually bends downward due to the weight of the package. The bending amount of the bobbin holder is larger toward the leading end side in the predetermined direction.
  • the yarn winder described in JP 2012-158436 A is configured to maintain the contact roller and the bobbin holder substantially in parallel by a tilting mechanism (angle adjustment unit) that actively tilts the contact roller.
  • JP 2019-214474 A a slit on which the yarn is threaded is formed at an end portion in the predetermined direction of each bobbin.
  • JP 2019-214474 A discloses a yarn threading mechanism having a guide for threading a yarn to the slit.
  • the yarn threading mechanism is configured to be able to adjust the position of the guide in the predetermined direction. This suppresses the occurrence of the yarn threading error.
  • An object of the present invention is to suppress the occurrence of the problem of the package formation caused by the fluctuation in the relative position between the traverse region and the bobbin in a predetermined direction in which the bobbin holder extends.
  • a yarn winder is a yarn winder that winds a plurality of yarns around a plurality of bobbins to form a plurality of packages, the yarn winder including: a bobbin holder that is arranged to extend in a predetermined direction and holds the plurality of bobbins side by side in the predetermined direction; a plurality of traverse guides for traversing each of the plurality of yarns along the predetermined direction; a traverse device that includes at least one of the plurality of traverse guides and is configured to drive the at least one traverse guide; and a movement drive unit that moves the traverse device at least in the predetermined direction.
  • a traveling range (traverse region) of the yarn associated with the drive of the traverse guide included in the traverse device can be moved in the predetermined direction. This can suppress the fluctuation in the relative position between the traverse region and the bobbin in the predetermined direction. Therefore, it is possible to suppress the occurrence of the problem of the package formation caused by the fluctuation in the relative position between the traverse region and the bobbin.
  • the yarn winder of the first aspect is arranged so that the traverse region of the at least one traverse guide is fixed with respect to the traverse device.
  • the movement drive unit is provided as in the present invention.
  • the yarn winder of the second aspect is arranged such that each of the plurality of traverse guides is configured to traverse each of the plurality of yarns by two wing guides that are being rotationally driven in opposite directions to each other, or attached to an arm swingably driven.
  • each traverse guide has two wing guides (wing type) or is attached to the arm (arm type).
  • wing type wing guide
  • arm type arm guide
  • the yarn winder of any one of the first to third aspects is arranged so that the traverse device includes all of the plurality of traverse guides.
  • the traverse regions of all the traverse guides can be moved by one movement drive unit. Therefore, the structure of the yarn winder can be simplified as compared with a configuration that requires a plurality of movement drive units.
  • the yarn winder of any one of the first to fourth aspects is arranged so that the movement drive unit includes a linear actuator configured to be able to adjust a position of the traverse device in the predetermined direction.
  • the position of the traverse device can be precisely adjusted as compared with a configuration (for example, an air cylinder) in which the traverse device is moved simply by the propulsive force.
  • the yarn winder of any one of the first to fifth aspects is arranged so that the bobbin holder is cantilevered to extend at least in a horizontal direction, and the yarn winding machine includes a contact roller that is disposed to extend at least in the predetermined direction and applies a contact pressure to the plurality of packages, and an angle adjustment unit configured to be able to adjust an angle of the traverse device and the contact roller with respect to the horizontal direction.
  • the angle adjustment unit adjusts the angle of the traverse device and the contact roller, thereby suppressing the fluctuation in the contact pressure among the packages due to the thickening of the plurality of packages.
  • the traverse region is liable to be displaced in the predetermined direction with respect to the bobbin, and the package shape is liable to collapse.
  • displacement of the traverse region in the predetermined direction with respect to the bobbin can be suppressed by the movement drive unit, and hence the collapse of the package shape can be effectively suppressed.
  • the yarn winder of the sixth aspect further includes a supporting member that supports the traverse device and the contact roller and is configured to be movable by the angle adjustment unit, and the movement drive unit is configured to move the supporting member at least in the predetermined direction.
  • the movement drive unit is configured to move the supporting member. Therefore, the design can be simplified as compared with the case where the yarn winder is configured to move the traverse device with respect to the supporting member.
  • the yarn winder of any one of the first to seventh aspects further includes a first controller, and the first controller controls the movement drive unit during a winding operation of winding each of the plurality of yarns around the plurality of bobbins.
  • the position adjustment of the traverse region is carried out during the winding operation. Therefore, the shape of the package can be effectively adjusted, or the shape of the package can be freely changed to some extent.
  • the yarn winder of any one of the first to eighth aspects further includes a position information acquisition unit that acquires position information related to a position of a predetermined part of the plurality of bobbins in the predetermined direction.
  • the displacement amount of the traverse region in the predetermined direction caused by an error of a bobbin length can be found based on the position information. Therefore, the displacement of the traverse region from the bobbin in the predetermined direction can be compensated using the position information.
  • the yarn winder of the ninth aspect further includes a second controller, and the second controller controls the movement drive unit before starting a winding operation of winding each of the plurality of yarns around the plurality of bobbins based on the position information.
  • a position displacement of the traverse region with respect to the bobbin caused by an error of the bobbin length can be found in advance before the start of the winding operation. Therefore, according to the present invention, the position displacement as described above can be effectively compensated.
  • the yarn winder of any one of the first to tenth aspects further includes a third controller, wherein the third controller controls the movement drive unit to reduce a position displacement in the predetermined direction between the traverse region of the at least one traverse guide and the bobbin.
  • the present invention is particularly effective when it is desired to make the shape of the package symmetrical in the predetermined direction.
  • the yarn winder of any one of the first to eleventh aspects is arranged so that each bobbin held by the bobbin holder is formed with a slit to which the yarn is threaded at an end portion on one side in the predetermined direction, the yarn winder includes a fourth controller, and, during a winding operation of winding each of the plurality of yarns around the plurality of bobbins, the fourth controller controls the movement drive unit to move the traverse device to the one side at least in the predetermined direction.
  • a wound region in which the yarn is wound on the outer circumference of a bobbin is closer to the other side (side where the slit is not formed) than to the one side (side where the slit is formed) in the predetermined direction.
  • the region (margin) where the yarn is not wound on the outer circumference of the bobbin is narrow on the other side in the predetermined direction. That is, the margin is relatively wide on the one side in the predetermined direction of the bobbin, and the margin is relatively narrow on the other side in the predetermined direction of the bobbin.
  • the traverse region is purposely moved to the one side in the predetermined direction during the winding operation.
  • the fourth controller moves, during the winding operation, the traverse device to the one side in the predetermined direction and then to the other side in the predetermined direction.
  • the traverse device may be moved only to one side in the predetermined direction during the winding operation, but in this case, the radially outer part of the package is liable to be greatly biased to one side in the predetermined direction. This risks collapse of the shape of the package.
  • the radially outer part of the package can be suppressed from being biased to one side in the predetermined direction while suppressing the margin on the other side in the predetermined direction of the bobbin from being narrowed.
  • the left-right direction in FIG. 1 on the paper surface is defined as a front-rear direction.
  • a direction in which gravity acts is defined as an up-down direction (vertical direction), and a direction (direction perpendicular to the paper surface) orthogonal to both the front-rear direction and the up-down direction is defined as a left-right direction.
  • FIG. 1 is a profile of the spun yarn take-up machine 1.
  • the spun yarn take-up machine 1 includes a take-up unit 3 that takes up a yarn Y spun from a spinning apparatus 2, and a winding device 4 that winds the yarn Y taken up by the take-up unit 3 around a plurality of bobbins B.
  • the take-up unit 3 includes a first godet roller 11 and a second godet roller 12.
  • the take-up unit 3 is configured to take up, by the first godet roller 11 and the second godet roller 12, the yarn Y spun from the spinning apparatus 2 and send the yarn Y to the winding device 4.
  • the first godet roller 11 is a roller whose rotational axis direction is substantially parallel to the left-right direction.
  • the first godet roller 11 is arranged below the spinning apparatus 2 and above the front end portion of the winding device 4.
  • the first godet roller 11 is rotationally driven by a motor not illustrated.
  • a yarn regulating guide 13 is arranged immediately above the first godet roller 11.
  • the yarn regulating guide 13 is, for example, a known comb teeth yarn guide.
  • the yarn regulating guide 13 is configured to regulate the interval between the adjacent yarns Y to a predetermined value.
  • the second godet roller 12 is a roller whose rotational axis direction is substantially parallel to the left-right direction.
  • the second godet roller 12 is arranged above and rear as compared with the first godet roller 11.
  • the second godet roller 12 is rotationally driven by a motor not illustrated.
  • the second godet roller 12 is movably supported by a guide rail 14.
  • the guide rail 14 extends obliquely upward and rearward.
  • the second godet roller 12 is configured to be movable along the guide rail 14 by a movement mechanism not illustrated.
  • the second godet roller 12 is movable between a position (see solid line) at which the yarn Y is wound around the bobbin B and a position (see dashed line) at which yarn threading is carried out, the position being disposed in proximity to the first godet roller 11.
  • FIG. 2 is a front view of the winding device 4.
  • the winding device 4 includes a base 20, a plurality of fulcrum guides 21, a traverse device 22, a turret 23, two bobbin holders 24, a contact roller 25, a supporting member 26, an angle adjustment unit 27, and a controller 28.
  • the winding device 4 is configured to form a plurality of packages P by winding the plurality of yarns Y around the plurality of bobbins B held by the bobbin holder 24 while traversing the plurality of yarns Y fed from the take-up unit 3 in the front-rear direction by the traverse device 22.
  • the operation of winding the yarn Y around the bobbin B will be referred to as a winding operation.
  • the base 20 includes a base body 20a arranged upright at a rear portion of the winding device 4, and a frame 20b fixed to an upper portion of the base body 20a and extending forward.
  • the turret 23 and the like are supported on the base body 20a.
  • the frame 20b is, for example, a hollow columnar member.
  • the contact roller 25 extending along the front-rear direction is supported by the frame 20b via the supporting member 26 and the angle adjustment unit 27 (details will be described later).
  • the plurality of fulcrum guides 21 are yarn guides serving as fulcrums when the plurality of yarns Y are each traversed.
  • the plurality of fulcrum guides 21 are arranged corresponding to the plurality of yarns Y, respectively.
  • the plurality of fulcrum guides 21 are arrayed along the front-rear direction.
  • the traverse device 22 is configured to traverse the plurality of yarns Y along the front-rear direction.
  • the traverse device 22 includes a housing 31, a plurality of traverse guides 32 arranged corresponding to the plurality of yarns Y, respectively, and a traverse motor 33 (see FIG. 2 ).
  • the traverse device 22 is, for example, a wing type traverse device described in JP 2019-214474 A (The wing guide described in JP 2019-214474 A corresponds to the traverse guide 32 of the present embodiment).
  • Each of the plurality of traverse guides 32 includes, for example, two wing guides 34 (see FIG. 1. FIG. 1 shows only one wing guide 34 corresponding to each traverse guide 32).
  • the two wing guides 34 are configured to be rotationally driven in directions opposite to each other when viewed from a predetermined rotational axis direction.
  • Each traverse guide 32 is configured to traverse each yarn Y by the two wing guides 34 that are being rotationally driven by the traverse motor 33.
  • a traveling range (traverse region) in the front-rear direction of the yarn Y accompanying the drive of the plurality of traverse guides 32 is fixed with respect to the housing 31.
  • the center position of the traverse region of each traverse guide 32 does not move with respect to the traverse device 22.
  • the length of the traverse region in the axial direction is constant.
  • all the traverse guides 32 are included in the traverse device 22.
  • the traverse motor 33 is a common drive source of the plurality of traverse guides 32.
  • the plurality of traverse guides 32 are simultaneously driven at least in the front-rear direction by the traverse motor 33.
  • the yarn Y threaded to each traverse guide 32 is traversed simultaneously with each fulcrum guide 21 as a fulcrum.
  • the turret 23 is a disc-shaped member whose axial direction is substantially parallel to the front-rear direction.
  • the turret 23 is rotatably supported by the base body 20a.
  • the turret 23 is rotationally driven by a turret motor not illustrated.
  • the turret 23 cantilevers the two bobbin holders 24.
  • the turret 23 moves the two bobbin holders 24 by rotating about a rotation axis substantially parallel to the front-rear direction.
  • the turret 23 is configured such that the positions of the two bobbin holders 24 can be exchanged.
  • the bobbin B can be replaced with respect to the other bobbin holder 24 while the yarn is being wound around the bobbin B mounted to one bobbin holder 24.
  • the turret 23 is configured to be rotatable with an increase in the amount of the wound yarn Y during the winding operation (see the arrow in FIG. 2 ).
  • the two bobbin holders 24 are configured such that the plurality of bobbins B can be mounted to each of the bobbin holders.
  • the two bobbin holders 24 are rotatably supported by the turret 23 supported by the base body 20a.
  • the two bobbin holders 24 are cantilevered by the turret 23.
  • the two bobbin holders 24 are arranged so as to be point-symmetric with each other across the center point of the turret 23 when viewed from the front-rear direction. That is, for example, when one bobbin holder 24 is located at the uppermost position, the other bobbin holder 24 is located at the lowermost position.
  • the two bobbin holders 24 extend forward from the turret 23.
  • the axial direction (hereinafter, predetermined direction) in which the two bobbin holders 24 extend is substantially parallel to the front-rear direction. As will be described later, the predetermined direction slightly fluctuates during the winding operation.
  • the plurality of bobbins B individually provided in the plurality of yarns Y are mounted to each bobbin holder 24 side by side in the axial direction. In the present embodiment, the number of bobbins B that can be mounted to one bobbin holder 24 is 16 (see FIG. 1 ), but the present invention is not limited thereto.
  • Each of the two bobbin holders 24 is rotationally driven by an individual winding motor (not illustrated). The two bobbin holders 24 are located below the traverse device 22.
  • the weight of the package P increases (the package P becomes thicker) with the increase in the amount of the yarn Y.
  • the bobbin holder 24 is cantilevered. Therefore, the attitude of the bobbin holder 24 is maintained substantially horizontal immediately after the start of the winding operation (see FIG. 3A ), but as the package P becomes thicker, the bobbin holder 24 is bent downward by the weight of the package P (see FIG. 3B ). The bending amount of the bobbin holder 24 at this time is larger toward the leading end side in the axial direction of the bobbin holder 24.
  • the contact roller 25 is disposed immediately above the upper bobbin holder 24.
  • the axial direction of the contact roller 25 is substantially parallel to the front-rear direction.
  • the contact roller 25 is configured to apply a contact pressure to the surfaces of the plurality of packages P supported by the upper bobbin holder 24 and adjust the shape of the package P.
  • the supporting member 26 is configured to support the contact roller 25 and the traverse device 22. As shown in FIGS. 1 and 2 , the supporting member 26 is swingably attached to the frame 20b, for example.
  • the supporting member 26 includes, for example, a swing shaft 41, a pair of arm portions 42, and a roller support shaft 43.
  • the swing shaft 41 extends substantially in the front-rear direction.
  • the arm portions 42 are respectively fixed to both end portions of the swing shaft 41 in the front-rear direction.
  • the swing shaft 41 is configured to swing the pair of arm portions 42 and the roller support shaft 43 with the extending direction of the swing shaft 41 as a swing shaft direction.
  • the swing shaft 41 is rotatably supported by an attaching member 44 attached to the front end portion of the frame 20b and a slider 46 described later arranged in the vicinity of the rear end portion of the frame 20b.
  • the attaching member 44 rotatably supports the swing shaft 41.
  • the attaching member 44 swingably supports the swing shaft 41 in the up-down direction with the attaching member 44 as the swing shaft center by, for example, a shaft member not illustrated. Due to this, the angle of the swing shaft 41 with respect to the horizontal direction can be adjusted by the angle adjustment unit 27 (details will be described later).
  • the pair of arm portions 42 are fixed to both end portions of the swing shaft 41 in the front-rear direction.
  • the pair of arm portions 42 extend from the swing shaft 41 in a direction substantially perpendicular to the front-rear direction.
  • the housing 31 of the traverse device 22 is fixed to an intermediate portion of the pair of arm portions 42.
  • the roller support shaft 43 is fixed to the end portions of the pair of arm portions 42 on the side opposite to the swing shaft 41.
  • the roller support shaft 43 is a shaft disposed substantially parallel to the swing shaft 41.
  • the roller support shaft 43 rotatably supports the contact roller 25.
  • the angle adjustment unit 27 is configured to change the angle of the supporting member 26 with respect to the horizontal direction.
  • the angle adjustment unit 27 includes, for example, a ball screw mechanism 45.
  • the ball screw mechanism 45 includes the slider 46 and is configured to be able to move the slider 46 in the up-down direction.
  • the slider 46 rotatably supports a rear end portion of the swing shaft 41. By moving the rear end portion of the swing shaft 41 along the up-down direction by such the ball screw mechanism 45, it is possible to change the angle of the swing shaft 41 with respect to the horizontal direction. Due to this, the angle of the supporting member 26 with respect to the horizontal direction changes, and as a result, the angle of the contact roller 25 and the traverse device 22 with respect to the horizontal direction changes. Due to this, the angle of the contact roller 25 and the traverse device 22 can be caused to follow the bending of the bobbin holder 24 accompanying the thickening of the package P.
  • the controller 28 includes a CPU, a ROM, and a RAM.
  • the controller 28 controls each unit by the CPU according to a program stored in the ROM. Specifically, the controller 28 controls a turret motor (not illustrated), the traverse motor 33, the ball screw mechanism 45, and the like.
  • the controller 28 functions as a first controller, a second controller, a third controller, and a fourth controller of the present invention.
  • the yarn Y traversed by the traverse guide 32 is wound around the bobbin B to form the package P.
  • the contact roller 25 comes into contact with the surface of the package P to apply a contact pressure, so that the shape of the package P is adjusted.
  • the turret 23 is rotated in the direction of the arrow in FIG. 2 as the diameter of the package P becomes larger (the package P becomes thicker) by winding the yarn Y around the bobbin B. This increases the distance between the bobbin holder 24 on which the bobbin B around which the yarn Y is wound is mounted and the contact roller 25. Since the contact roller 25 is swingable about the swing shaft 41, the contact roller 25 swings following the movement of the bobbin holder 24 and the package P. This maintains the contact between the contact roller 25 and the package P.
  • the attitude of the bobbin holder 24 is maintained substantially horizontal (see FIG. 3A ).
  • the bobbin holder 24 is bent downward by the weight of the package P (see FIG. 3B ).
  • the axial direction (predetermined direction) of the bobbin holder 24 changes with respect to the horizontal direction with the lapse of time from the start of the winding operation.
  • the contact pressure by the contact roller 25 varies among the plurality of packages P, and as a result, the quality varies among the plurality of packages P.
  • the controller 28 controls the angle adjustment unit 27 during the winding operation to change the angle of the supporting member 26 with respect to the horizontal direction. This maintains the bobbin holder 24 and the contact roller 25 substantially parallel to each other. As described above, the traverse device 22, together with the contact roller 25, is supported by the supporting member 26. Therefore, even if the bobbin holder 24 is inclined from the horizontal direction, the moving direction of the yarn Y accompanying the driving of the traverse guide 32 can substantially coincide with the predetermined direction. Thus, it is also possible to suppress a problem that the winding angle (helix angle) when the yarn Y is wound around the bobbin B displaces from the target value, for example.
  • FIG. 4A is an explanatory view showing a positional relationship between the bobbin B before the start of the winding operation and a movable range (traverse region R) of the yarn Y accompanying the drive of the traverse guide 32.
  • FIG. 4B is an explanatory view showing a positional relationship between the bobbin B and the traverse region R after a predetermined time has elapsed from the start of the winding operation.
  • FIG. 4C is a view more schematically showing the positional relationship in FIG. 4A.
  • FIG. 4D is a view more schematically showing the positional relationship in FIG. 4B .
  • FIG. 5 is an explanatory view related to an error in the length of the bobbin B mounted to the bobbin holder 24.
  • a side toward the front side is defined as one side in a predetermined direction.
  • a side toward the rear side is defined as the other side in the predetermined direction.
  • the bobbin B and the traverse region R have a predetermined positional relationship in the front-rear direction (see FIG. 4A ).
  • the yarn Y is wound around a predetermined region of the outer circumference of the bobbin B in the predetermined direction.
  • Such a phenomenon will be more schematically described with reference to FIGS. 4C and 4D .
  • a simple example will be given below. It is assumed that the swing shaft 41 described above is arranged along a line segment L1. A predetermined point of the front end portion of the swing shaft 41 is defined as a point P1a. A predetermined point at the rear end portion of the swing shaft 41 is assumed to be the rear end of the line segment L1, and the point at the rear end of the line segment L1 is assumed to be a point P1b. It is assumed that the bobbin holder 24 is disposed along a line segment L2 disposed below the line segment L1. A predetermined point of the front end portion (leading end portion) of the bobbin holder 24 is defined as a point P2a.
  • a predetermined point of the rear end portion (base end portion) of the bobbin holder 24 is defined as a point P2b.
  • the length of the line segment L1 and the length of the line segment L2 are the same.
  • the predetermined direction is parallel to the front-rear direction. In this case, the positions of the point P1a and the point P2a coincide with each other in the predetermined direction (see the two-dot chain line in FIG. 4C ).
  • the line segment L2 can be considered to have been rotated downward by a predetermined angle about the point P2b.
  • the predetermined direction is inclined by a predetermined angle with respect to the front-rear direction.
  • the point P2a is displaced to one side with respect to the point P1a (see the two-dot chain line in FIG. 4D ).
  • the angle of the line segment L1 is changed according to the change in angle of the line segment L2
  • a slit S on which the yarn Y is threaded is formed at one end portion of the bobbin B in the axial direction of the bobbin B (see the broken lines in FIGS. 4A and 4B ).
  • the traverse region R is set so as to be close to a side where the slit S is not formed in the axial direction of the bobbin B. That is, on the side where the slit S is not formed in the bobbin B, the margin part in which the yarn is not wound is narrow.
  • a difference dLt between the total value (entire length) of the lengths of the plurality of bobbins B1 and the entire length of the plurality of bobbins B2 increases with an increase in the number of bobbins B mounted at one time on the bobbin holder 24.
  • the positional relationship between the bobbin B and the traverse region R (see FIGS. 4A and 4B ) in the predetermined direction cannot be appropriately maintained, and a malfunction is liable to occur in the formation of the package P.
  • the winding device 4 of the spun yarn take-up machine 1 of the present embodiment includes a movement drive unit 50 as follows.
  • the configuration of the movement drive unit 50 will be described with reference to FIG. 6.
  • FIG. 6 illustrates also the members accommodated in the base body 20a so that they are visible.
  • the movement drive unit 50 is to move the entire traverse device 22 in at least the predetermined direction.
  • the movement drive unit 50 includes, for example, a ball screw mechanism 51 (linear actuator of the present invention).
  • the ball screw mechanism 51 is configured to be able to adjust a position of the traverse device 22 in the predetermined direction.
  • the ball screw mechanism 51 is connected to the rear end portion of the swing shaft 41 of the supporting member 26.
  • the ball screw mechanism 51 includes a moving motor 52, a screw shaft 53, and a slider 54.
  • the moving motor 52 is configured to rotationally drive the screw shaft 53.
  • the moving motor 52 is, for example, a known servo motor or stepping motor.
  • the screw shaft 53 is fixed to a rotation shaft of the moving motor 52.
  • the moving motor 52 is coupled to the slider 46 of the angle adjustment unit 27 described above by a connection member 55, for example. Due to this, the position of the moving motor 52 is fixed with respect to the slider 46. Therefore, the moving motor 52 can move following the up-down movement of the slider 46 (i.e., following the change in angle of the swing shaft 41).
  • the moving motor 52 is electrically connected to the controller 28, and is driven and controlled by the controller.
  • the screw shaft 53 rotates to move the slider 54 in at least the predetermined direction.
  • the extending direction of the screw shaft 53 is substantially parallel to the extending direction of the swing shaft 41 of the supporting member 26 described above.
  • a male screw is formed on the screw shaft 53.
  • the screw shaft 53 is screwed with the slider 54.
  • a female screw is formed on the slider 54.
  • the slider 54 is screwed with the screw shaft 53.
  • the slider 54 is attached to the rear end portion of the swing shaft 41 of the supporting member 26. This enables the slider 54 to move following the change in angle of the swing shaft 41.
  • the ball screw mechanism 51 follows the change in angle (i.e., the change in angle of the supporting member 26) of the swing shaft 41 as a whole. This avoids an excessive force from being applied to the ball screw mechanism 51.
  • the winding device 4 is also configured as follows in order to make the supporting member 26 movable in at least the predetermined direction.
  • the slider 46 of the angle adjustment unit 27 slidably supports the rear end portion of the swing shaft 41 in the predetermined direction.
  • a through hole 46a penetrating in the axial direction of the swing shaft 41 is formed in the slider 46, and the swing shaft 41 is inserted into the through hole 46a.
  • the above-described attaching member 44 (see FIG. 1 and the like) slidably supports the front end portion of the swing shaft 41 in the predetermined direction.
  • the slider 54 moves in the extending direction of the screw shaft 53 (see the arrow in FIG. 6 ). Due to this, the entire supporting member 26 including the swing shaft 41 moves integrally with the slider 54 in the extending direction of the swing shaft 41. As a result, the entire traverse device 22 attached to the supporting member 26 moves at least in the predetermined direction.
  • the traverse device 22 moves along the predetermined direction.
  • the contact roller 25 also moves at least in the predetermined direction along with the movement of the supporting member 26.
  • FIGS. 7A to 7C are explanatory views showing control examples of the movement drive unit 50 by the controller 28 (more specifically, movement of the traverse region R).
  • FIG. 8A is a profile of the package P.
  • FIG. 8B is a cross section of the package P shown in FIG. 8A.
  • FIG. 8C is a cross section of the package P according to a second control example (1) described later.
  • FIG. 8D is a cross section of the package P according to a second control example (2) described later.
  • the controller 28 controls the movement drive unit 50 based on the information on the entire length of the plurality of bobbins B, and adjusts the position of the traverse region R at least in the predetermined direction (see FIG. 7A ).
  • An example of the adjustment method is as follows.
  • the controller 28 acquires information related to the entire length of the plurality of bobbins B by some means or method before the start of the winding operation.
  • the information may be input to the controller 28 by, for example, an operator.
  • the information related to the entire length of the plurality of bobbins B may be sent, for example, from a higher computer electrically connected to the controller 28 to the controller 28. Based on such information of the entire length, the controller 28 can acquire position information in the predetermined direction of a predetermined part of the plurality of bobbins B (e.g., the front end surface of the bobbin B arranged on the foremost side). In this case, the controller 28 corresponds to a position information acquisition unit of the present invention.
  • the winding device 4 may include a sensor not illustrated that detects a position in the predetermined direction of a predetermined part of the plurality of bobbins B. The sensor may transmit information of the position to the controller 28. In this case, the sensor corresponds to the position information acquisition unit of the present invention.
  • the controller 28 After acquiring the information of the entire length of the plurality of bobbins B, the controller 28 derives the adjustment amount of the traverse region R based on the information.
  • the adjustment amount may be a value obtained by dividing the difference between the entire length and the reference length by 2, for example.
  • the controller 28 controls the movement drive unit 50 before the start of the winding operation to move the traverse device 22, and adjusts the position of the traverse region R at least in the predetermined direction. This can optimize the position of the traverse region R in the predetermined direction with respect to the bobbin B mounted to the center part of the bobbin holder 24 in the front-rear direction.
  • the controller 28 stores the thus optimized position of the traverse region R as the position (reference position) of the traverse region R at the start of the winding operation.
  • the traverse region R can slightly displace in the predetermined direction with respect to the bobbin B arranged on the foremost side and the bobbin B arranged on the rearmost side.
  • the position displacement in the predetermined direction between, for example, the bobbin B arranged on the foremost side and the traverse region R can be halved.
  • the movement drive unit 50 is controlled so as to reduce the position displacement in the predetermined direction between the traverse region R and the bobbin B.
  • the specific timing of the position adjustment of the traverse region R before the start of the winding operation as described above may be, for example, immediately before the yarn Y is threaded to the slit S of each bobbin B.
  • the position adjustment may be carried out, for example, in a period from the completion of the yarn threading to the slit S to the start of the winding operation.
  • the controller 28 moves the traverse region R during the winding operation with respect to the position (reference position described above) of the traverse region R at the start of the winding operation.
  • the position control is carried out during the winding operation, simultaneously with the control of the angle adjustment of the contact roller 25, for example.
  • the first control example (see FIG. 7B ) is a control example of maintaining substantially the same positional relationship in the predetermined direction between the traverse region R and the bobbin B.
  • the second control example (see FIG. 7C ) is a control example in which the traverse region R is gradually moved toward the slit S side in the predetermined direction during the winding operation.
  • the controller 28 acquires target information related to a target position (or a movement amount of the supporting member 26) in the predetermined direction of the traverse region R in which the bending of the bobbin holder 24 accompanying the thickening of the package P and the angle adjustment of the supporting member 26 with respect to the bending are taken into consideration.
  • the information may be stored in advance in the RAM of the controller 28 as, for example, a table in which time and position (or movement amount) are associated with each other.
  • the information may be derived based on a predetermined calculation formula or the like using a detection result by a sensor (not illustrated) that detects information on the bending amount of the bobbin holder 24 and a detection result by a sensor (not illustrated) that detects information on the angle of the supporting member 26.
  • the controller 28 appropriately controls the movement drive unit 50, thereby performing the position control in the predetermined direction of the traverse region R during the winding operation.
  • the target information is determined such that a positional relationship in the predetermined direction between the traverse region R of a certain traverse guide 32 and the bobbin B corresponding to the traverse guide 32 does not change with time (i.e., so that the relative position in the predetermined direction does not change with time). That is, not only before the start of the winding operation but also during the winding operation, the movement drive unit 50 is controlled so as to reduce the positional displacement in the predetermined direction between the traverse region R and the bobbin B. Thus, deformation of the package P in the predetermined direction is suppressed (see FIG. 7B ). More specifically, as shown in FIG. 8A for example, the shape of an end face E1 on one side in the predetermined direction of the package P and the shape of an end face E2 on the other side in the predetermined direction can be made symmetrical in the predetermined direction.
  • the target information is determined such that the traverse region R gradually displaces to at least one side (side where the slit S is formed) in the predetermined direction with respect to the bobbin B (see the full-line arrow in FIG. 7C ). This causes the outer circumference of the package P to be intentionally slightly displaced to one side in the predetermined direction (see FIG. 7C ).
  • the radially inner portion of the package P tends to bulge in the predetermined direction. That is, a compressive force generated by the yarn tension at the radially outer part of the package P acts on the radially intermediate portion (intermediate layer portion) of the yarn layer, and the bulge is generated. Due to this, the end faces E1 and E2 bulge in the predetermined direction (see FIG. 8A and the like).
  • the radially intermediate portion (intermediate layer portion) of the yarn layer tends to bulge the most in the predetermined direction. Since such a bulge occurs, when the bobbin B is mounted to the bobbin holder 24 such that the slit S is arranged on one side in the predetermined direction, there is a high risk that the yarn Y tends to protrude from the bobbin B on the other side in the predetermined direction of the bobbin B. Alternatively, even if a serious problem that the yarn Y protrudes from the bobbin B does not occur, the following problem may also occur when the margin part of the end portion on the other side in the predetermined direction of the bobbin B is narrow.
  • the plurality of completed packages P are transported in a state of being placed on a tray (not illustrated) on which the plurality of packages P can be placed.
  • a plurality of holes (not illustrated) into which the end portions on the other side in the predetermined direction of the plurality of bobbins B can be inserted are formed on a placement surface (not illustrated) of the tray.
  • the plurality of packages P placed on the tray are transported in a state where the axial direction of each bobbin B is substantially parallel to the up-down direction and the end face of the package P is substantially parallel to the horizontal direction.
  • the bobbin B is not firmly inserted into the hole, and the package P easily falls.
  • the bobbin B is not firmly inserted into the hole as described above, there is a possibility that the package P is displaced in the horizontal direction on the placement surface during transportation, comes into contact with the adjacent package P, and the package P is damaged.
  • the bulge of the end face E2 on the other side in the predetermined direction of the package P can be reduced by carrying out the second control example during the winding operation.
  • the controller 28 (1) moves the traverse device 22 only to one side in the predetermined direction, or (2) moves the traverse device 22 to one side in the predetermined direction and then to the other side in the predetermined direction.
  • the controller 28 controls the movement drive unit 50 to gradually move the traverse device 22 to one side in the predetermined direction from immediately after the start of the winding operation or after a predetermined time has lapsed from the start of the winding operation (see the full-line arrow in FIG. 7C ).
  • the movement amount of the traverse device 22 at this time is larger than the movement amount of the traverse device 22 in the first control example, for example. More specifically, the traverse region R immediately before the end of the winding operation is displaced to one side in the predetermined direction by a predetermined amount with respect to the traverse region R at the start of the winding operation.
  • the predetermined amount may be, for example, dLr described above (see a two-dot chain line in the package P of FIG. 8C ), or may be another value.
  • Such control enables the position of the intermediate layer in the predetermined direction to displace to one side.
  • the bulge amount of the end face E1 increases, and the bulge amount of the end face E2 is suppressed (see FIG. 8C ). Therefore, since the bobbin B can be firmly inserted into the hole of the tray, the package P can be stably transported.
  • the control of the above (2) will be described.
  • the radially outer part of the package P is liable to be greatly biased to one side in the predetermined direction, which causes concern of collapsing the shape of the package P. If the traverse region R moves too much to one side in the predetermined direction, the yarn layer of the package P is also liable to protrude to one side in the predetermined direction from the end face of the bobbin B. Therefore, the control of the above (2) may be performed instead of the control of the above (1).
  • the controller 28 controls the movement drive unit 50 to gradually move the traverse device 22 to one side in the predetermined direction from immediately after the start of the winding operation or after a predetermined time has lapsed from the start of the winding operation (see the full-line arrow in FIG. 7C ). Thereafter, the controller 28 gradually moves the traverse device 22 to the other side in the predetermined direction (see the broken line arrow in FIG. 7C ).
  • the controller 28 controls the movement drive unit 50 so that the traverse region R when the weight of the package P becomes approximately half of the target weight is displaced by dLr to one side in the predetermined direction relative to the traverse region R at the start of the winding operation (see the two-dot chain line in the package P of FIG. 8D ). Thereafter, the controller 28 controls the movement drive unit 50 so that the position in the predetermined direction of the traverse region R when the weight of the package P reaches the target weight substantially coincides with the position of the traverse region R in the predetermined direction at the start of the winding operation (see two-dot chain line in FIG. 8D ).
  • the present invention is not limited thereto, and by reducing the bulging amount, the margin part of the end portion on the other side in the predetermined direction of the bobbin B can be suppressed from being narrowed.
  • the traveling range (traverse region R) of the yarn Y accompanying the drive of the traverse guide 32 included in the traverse device 22 can be moved in the predetermined direction. This can suppress the fluctuation in the relative position between the traverse region R and the bobbin B in the predetermined direction. Therefore, it is possible to suppress the occurrence of the problem of formation of the package P caused by the fluctuation in the relative position between the traverse region R and the bobbin B.
  • the movement drive unit 50 is provided.
  • the traverse device 22 includes all of the plurality of traverse guides 32. This can move the traverse regions R of all the traverse guides 32 by one movement drive unit 50. Therefore, the structure of the spun yarn take-up machine 1 can be simplified as compared with a configuration that requires a plurality of movement drive units (not illustrated).
  • the movement drive unit 50 includes the ball screw mechanism 51 that can adjust the position of the traverse device 22 in the predetermined direction. This allows the position of the traverse device 22 to be precisely adjusted as compared with a configuration in which the traverse device 22 is moved by the propulsive force such as an air cylinder (not illustrated), for example.
  • the angle adjustment unit 27 adjusts the angle of the traverse device 22 and the contact roller 25, thereby suppressing the fluctuation in the contact pressure among the packages P due to the thickening of the plurality of packages P.
  • the traverse region R is liable to be displaced in the predetermined direction with respect to the bobbin B, and the shape of the package P is liable to collapse.
  • displacement of the traverse region R in the predetermined direction with respect to the bobbin B can be suppressed by the movement drive unit 50, and hence the collapse of the shape of the package P can be effectively suppressed.
  • the movement drive unit 50 is configured to move the supporting member 26. Therefore, the design can be simplified as compared with the case where the spun yarn take-up machine 1 is configured to move the traverse device 22 with respect to the supporting member 26.
  • the position adjustment of the traverse region R is carried out during the winding operation. Therefore, the shape of the package P can be effectively adjusted, or the shape of the package P can be freely changed to some extent.
  • the spun yarn take-up machine 1 includes a position information acquisition unit (controller 28 or a sensor not illustrated).
  • controller 28 or a sensor not illustrated.
  • the position displacement of the traverse region R from the bobbin B caused by an error in the length of the bobbin B can be found in advance by the position information acquisition unit before the start of the winding operation.
  • the controller 28 controls the movement drive unit 50 before the start of the winding operation based on the position information. Therefore, the position displacement as described above can be effectively compensated.
  • the controller 28 controls the movement drive unit 50 so as to reduce the positional displacement in the predetermined direction between the traverse region R and the bobbin B.
  • Such control is particularly effective when it is desired to make the shape of the package P symmetrical in the predetermined direction.
  • the traverse region R is purposely moved to one side in the predetermined direction during the winding operation.
  • the bulge amount of the end face E1 on one side (side where the margin of the bobbin B is wide) in the predetermined direction of the package P can be reduced accordingly. Therefore, since the margin on the other side in the predetermined direction of the bobbin B can be suppressed from narrowing, the risk of the yarn Y protruding from the bobbin B and the like can be reduced.
  • the controller 28 may move the traverse device 22 to one side in the predetermined direction and then to the other side in the predetermined direction.
  • the radially outer part of the package P can be suppressed from being biased to one side in the predetermined direction while suppressing the margin on the other side in the predetermined direction of the bobbin B from being narrowed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Winding Filamentary Materials (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP24159047.0A 2020-11-27 2021-10-27 Garnwickler Pending EP4349753A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020197423A JP2022085641A (ja) 2020-11-27 2020-11-27 糸巻取機
EP21204976.1A EP4005959A1 (de) 2020-11-27 2021-10-27 Garnwickler

Related Parent Applications (1)

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EP21204976.1A Division EP4005959A1 (de) 2020-11-27 2021-10-27 Garnwickler

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EP4349753A3 EP4349753A3 (de) 2024-06-26

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EP21204976.1A Pending EP4005959A1 (de) 2020-11-27 2021-10-27 Garnwickler
EP24159048.8A Pending EP4349754A3 (de) 2020-11-27 2021-10-27 Garnwickler

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EP24159048.8A Pending EP4349754A3 (de) 2020-11-27 2021-10-27 Garnwickler

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158436A (ja) 2011-02-01 2012-08-23 Tmt Machinery Inc 糸巻取機
JP2019214474A (ja) 2018-06-11 2019-12-19 Ｔｍｔマシナリー株式会社 紡糸巻取装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224973A (ja) * 1982-06-25 1983-12-27 Asahi Chem Ind Co Ltd 巻取装置
TW524769B (en) * 2000-07-24 2003-03-21 Advanced Glassfiber Yarns Llc Method and apparatus for producing cylindrical packages of glass fiber strands
DE102007041696B4 (de) * 2007-09-03 2014-01-23 Siemens Aktiengesellschaft Changiereinrichtung
JP5529632B2 (ja) * 2010-06-07 2014-06-25 Ｔｍｔマシナリー株式会社 巻取機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158436A (ja) 2011-02-01 2012-08-23 Tmt Machinery Inc 糸巻取機
JP2019214474A (ja) 2018-06-11 2019-12-19 Ｔｍｔマシナリー株式会社 紡糸巻取装置

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CN114560349A (zh) 2022-05-31
EP4349753A3 (de) 2024-06-26
JP2022085641A (ja) 2022-06-08
EP4005959A1 (de) 2022-06-01
EP4349754A3 (de) 2024-06-26
EP4349754A2 (de) 2024-04-10

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