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WO2025095025A1 - Dispositif d'enroulement rotatif - Google Patents

Dispositif d'enroulement rotatif Download PDF

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Publication number
WO2025095025A1
WO2025095025A1 PCT/JP2024/038783 JP2024038783W WO2025095025A1 WO 2025095025 A1 WO2025095025 A1 WO 2025095025A1 JP 2024038783 W JP2024038783 W JP 2024038783W WO 2025095025 A1 WO2025095025 A1 WO 2025095025A1
Authority
WO
WIPO (PCT)
Prior art keywords
yarn
guide
bobbin
path portion
thread
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
PCT/JP2024/038783
Other languages
English (en)
Japanese (ja)
Inventor
峻平 荒木
崇倫 松井
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 WO2025095025A1 publication Critical patent/WO2025095025A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B65H57/02—Stationary rods or plates
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D01H13/06—Traversing arrangements

Definitions

  • the present invention relates to a spinning winding device that winds multiple yarns spun from a spinning device onto multiple bobbins to form multiple packages. More specifically, the present invention relates to a spinning winding device that is equipped with multiple thread hooking devices that hook multiple yarns onto thread fixing parts formed on multiple bobbins.
  • a spinning winding device is provided with multiple thread hooking devices that hook multiple threads onto thread fixing portions formed on multiple bobbins (see, for example, Patent Document 1).
  • the threading device uses a thread capture guide to capture the thread being reciprocated by the traverse device.
  • the thread captured by the thread capture guide is guided to the thread fixing section of the new bobbin.
  • the thread fixing section is, for example, a slit formed in the circumferential direction of the bobbin near the end of the bobbin.
  • the thread guided to the thread fixing section is fixed to the bobbin and becomes the winding start point.
  • the thread capture guide can be moved in the axial direction of the bobbin by a cylinder. During winding of the thread, the thread capture guide waits at a standby position in the axial direction of the bobbin. When switching to a new bobbin, the thread capture guide moves to a capture position where it can capture the thread. Once the thread has been captured, the thread capture guide moves to a thread pull-up position, and the thread is hooked onto the thread fixing part of the new bobbin. The thread pull-up position corresponds to the position of the thread fixing part formed on the bobbin. After the thread has been hooked onto the thread fixing part of the new bobbin, the thread capture guide moves to a thread release position to release the captured thread. Once the captured thread has been released, the thread capture guide moves back to the standby position, and waits until it is time to switch to the next new bobbin.
  • the thread catch guide in the standby position is close to the thread path during winding. Therefore, when attempting to change the thread path to change the winding position relative to the bobbin or to change the winding width, there is a risk that the thread being wound will interfere with the thread catch guide in the standby position.
  • the position of the thread capture guide in the standby position also serves as the position of the thread capture guide in the thread pull-up position. For this reason, with conventional thread capture guides, if the standby position is changed to be farther away from the thread path in the axial direction of the bobbin, the thread pull-up position will also change, making it impossible to hook the thread on the thread fixing part of a new bobbin.
  • the present invention was made in consideration of the above problems, and aims to provide a spinning winding device that can accommodate package improvements such as increasing the winding amount of the package or changing the winding position of the yarn on the bobbin by ensuring a certain distance from the yarn path when the yarn capture guide is in a standby state without compromising the yarn threading function of the yarn threading device.
  • the fiber spinning winding apparatus of the present invention is a fiber spinning winding apparatus that winds a plurality of yarns spun from a fiber spinning apparatus onto a plurality of bobbins, a bobbin holder that holds the plurality of bobbins in an axial direction; A plurality of fulcrum guides for feeding out a plurality of yarns toward the plurality of bobbins; a plurality of traverse devices including a plurality of traverse guides that guide the plurality of yarns fed from the plurality of fulcrum guides so as to move back and forth around the plurality of fulcrum guides in an axial direction of the plurality of bobbins; a plurality of thread hooking devices for hooking a plurality of threads onto thread fixing portions formed on the plurality of bobbins; Equipped with Each of the plurality of threading devices includes: a yarn capture guide that captures and releases the yarn reciprocated by the traverse device
  • the guide drive member has a guide drive member that switches the posture of the thread capturing guide to a thread pull-up posture, in which the captured thread is moved to a position where it is hooked onto the thread fixing portion of the bobbin, and a standby posture, which is further away from the contact locus than the thread pull-up posture when the thread is released, and by switching to the standby posture, the thread capturing guide is moved away from the contact locus in the axial direction of the bobbin and is also moved away from the contact locus when viewed from the axial direction of the bobbin. Therefore, when the yarn catching guide is switched to the standby position, the distance between the yarn catching guide and the traveling yarn can be increased, thereby ensuring the distance from the yarn path.
  • the yarn hooking function of the yarn catch guide is not impaired. Therefore, the distance from the yarn path can be secured when the yarn catch guide is in the standby state without impairing the yarn threading function of the yarn threading device, which makes it possible to accommodate improvements in the package, such as increasing the winding amount of the package or changing the winding position of the yarn on the bobbin.
  • the standby position is The yarn capturing guide may be moved to a standby position away from the contact locus in the axial direction of the bobbin, and may be moved upwardly relative to the contact locus relative to the yarn shifting position when viewed from the axial direction of the bobbin (second configuration).
  • the thread capturing guide when the thread capturing guide is switched to the standby position, it is moved to a standby position away from the contact locus in the axial direction of the bobbin, and when viewed from the axial direction of the bobbin, it is moved upward relative to the contact locus further than in the thread shifting position.
  • the yarn reciprocated by the traverse device reciprocates around a fulcrum guide located upstream in the running direction of the yarn.
  • the yarn sent out while reciprocating from the fulcrum guide to the traverse guide runs while changing its inclination angle with respect to the axial direction of the bobbin. For this reason, the inclination angle of the yarn is largest at both ends of the traverse range, which is the range in which the yarn reciprocates by the traverse device.
  • the distance between the yarn catch guide and the running yarn decreases as the distance in the running direction of the yarn from the contact locus decreases.
  • the closer the yarn catch guide is to the contact locus as viewed from the axial direction of the bobbin the closer the yarn is to the range where the yarn exists.
  • the distance between the yarn catching guide and the traveling yarn increases as the distance from the contact locus in the traveling direction of the yarn increases.
  • the yarn catching guide becomes farther away from the range in which the yarn exists as it moves away from the contact locus as viewed from the axial direction of the bobbin. Therefore, by moving the yarn capturing guide to a standby position and switching it to a standby position in which it is moved upward with respect to the contact locus relative to the yarn pull-over position when viewed from the axial direction of the bobbin, the yarn capturing guide is spaced away from the contact locus, and the distance between the yarn capturing guide and the running yarn can be made greater than in the yarn pull-over position.
  • the guide driving member changes the attitude of the yarn catching guide to
  • the yarn reciprocated by the traverse device is moved to a position where the yarn can be captured, and the posture is switched to a capturing posture;
  • Switching from the capturing posture to the yarn shifting posture in which the captured yarn is moved to a position where it is hung on the yarn fixing portion of the bobbin;
  • the yarn removing position may be switched to the standby position (third configuration).
  • the guide drive member moves the thread capturing guide in the axial direction of the bobbin and also moves the thread capturing guide so as to change the distance relative to the contact locus when viewed from the axial direction of the bobbin, thereby switching the posture of the thread capturing guide between a capturing posture, a thread pull-up posture, a thread removal posture and a standby posture.
  • the guide drive member can switch the yarn capturing guide between the capturing position, the yarn pulling position, the yarn removal position and the standby position by combining two simple operations: an operation of moving the yarn capturing guide in the axial direction of the bobbin, and an operation of moving the yarn capturing guide so as to change the distance relative to the contact locus when viewed from the axial direction of the bobbin. Therefore, the mechanism of the guide driving member can be simplified.
  • the guide drive member is a drive unit that drives the yarn catch guide in an axial direction of the bobbin; a guide portion for guiding the yarn catching guide in an axial direction of the bobbin,
  • the guide portion is a first path portion that guides the yarn catching guide to switch from the catching position to the yarn shifting position; a second path portion that guides the yarn catching guide to switch from the yarn pulling position to the yarn removing position; a third path portion that guides the yarn catching guide to switch from the yarn removing position to the standby position;
  • the yarn catching guide may further include a fourth path portion that guides the yarn catching guide to switch from the standby position to the catching position (fourth configuration).
  • the guide driving member has a guide portion having a first path portion, a second path portion, a third path portion and a fourth path portion, and a driving portion that drives the thread catch guide in the axial direction of the bobbin. Therefore, without complicating the configuration of the guide driving member, the thread capturing guide can be moved in the axial direction of the bobbin, and the thread capturing guide can be moved so as to change the distance relative to the contact locus when viewed from the axial direction of the bobbin, and the position of the thread capturing guide can be switched between a capturing position, a thread pulling position, a thread removal position and a standby position.
  • the guide drive member is The yarn catch guide is supported so as to be movable in an axial direction of the bobbin and is supported so as to be swingable about a swing shaft extending in the axial direction of the bobbin,
  • the guide section may guide the thread capturing guide in the axial direction of the bobbin, and may swing the thread capturing guide to change its distance from the contact locus when viewed from the axial direction of the bobbin, thereby switching the thread capturing guide to the thread removal position and the standby position in which the distance from the contact locus is greater than that of the thread pull-up position when viewed from the axial direction of the bobbin (fifth configuration).
  • the guide drive member guides the thread catching guide in the axial direction of the bobbin, and swings the thread catching guide so as to change the distance with respect to the contact locus when viewed from the axial direction of the bobbin.
  • This allows the yarn catching guide to be switched between the yarn removing position and the standby position, in which the distance from the contact locus is increased compared to the yarn pulling position when viewed in the axial direction of the bobbin.
  • the yarn catching guide is connected to a guided portion guided by the guiding portion
  • the guide portion is the second path portion and the fourth path portion are connected to the first path portion
  • the third path portion and the fourth path portion are connected to the second path portion
  • It may also have a regulating section that regulates the path along which the guided portion is guided so as to guide the guided portion from the first path section to the second path section, from the second path section to the third path section, and from the third path section to the fourth path section (sixth configuration).
  • the thread catching guide is connected to the guided portion guided by the guiding portion, and the guiding portion has the restricting portion that restricts the path along which the guided portion is guided. Therefore, by guiding the guided portion along a predetermined path, the guiding portion can switch the position of the yarn catching guide among a catching position, a yarn pulling position, a yarn removing position and a standby position.
  • the regulating portion is a first restricting portion that allows the guided portion to enter the first path portion from a first connection portion between the first path portion and the fourth path portion and prevents the guided portion from entering the fourth path portion; and a second restricting portion that allows the guided portion to enter from a second connection portion between the first path portion and the second path portion toward the second path portion and prevents the guided portion from entering toward the first path portion; and It may also have a third regulating portion that allows the guided portion to enter toward the third path portion from a third connection portion between the second path portion and the third path portion and prevents the guided portion from entering toward the second path portion (seventh configuration).
  • the guided portion of the thread catch guide can be guided toward a predetermined path by the first restricting portion, the second restricting portion, and the third restricting portion provided on the guide portion.
  • the second restricting portion is a step formed between the first path portion and the second path portion
  • the third restriction portion is The recess may be configured by a step formed between the second path portion and the third path portion (eighth configuration).
  • the second restricting portion and the third restricting portion are formed by steps.
  • the guided portion of the thread catching guide can pass through the second regulating portion and the third regulating portion only from a specified direction, and the guided portion of the thread catching guide can be guided toward a specified path.
  • the spinning winding device of the present invention can accommodate package improvements, such as increasing the winding amount of the package or changing the winding position of the yarn relative to the bobbin, by ensuring a certain distance from the yarn path when the yarn capture guide is in standby without impairing the yarn threading function of the yarn threading device.
  • FIG. 1 is a schematic diagram of a yarn take-up device to which a yarn take-up device according to an embodiment of the present invention is applied.
  • FIG. 2 is a schematic diagram of the traverse device and the threading device.
  • FIG. 3 is a schematic diagram of the traverse device and the threading device as viewed from the direction D1 in FIG.
  • FIG. 4 is a diagram showing a bobbin and a thread fixing portion formed on the bobbin.
  • FIG. 5A is a perspective view showing a state in which a guide portion main body and an insertion portion which constitute a guide portion of a guide drive member are assembled together
  • FIG. 5B is a perspective view showing the assembled state in which the guide portion is disassembled.
  • FIG. 6 is a diagram showing a path portion along which the cam member guides the guided portion.
  • FIG. 7 is a diagram showing a state in which the cam member guides the guided portion.
  • FIG. 8A is a diagram for explaining the configuration of the cam member, and FIG. 8B is an enlarged perspective view of the area from line A1-A1 to line A2-A2 in FIG. 8A.
  • FIG. 9 is a diagram showing a state in which the yarn catching guide of the yarn threading device is in the catching position.
  • FIG. 10 is a diagram showing a state in which the yarn catch guide of the yarn threading device is in the yarn pulling position.
  • FIG. 11 is a diagram showing a state in which the yarn catch guide of the yarn threading device is in the yarn removing position.
  • FIG. 12 is a diagram showing a state in which the yarn catch guide of the yarn threading device is in the standby position.
  • FIG. 13 is a diagram for explaining the distance between the yarn catch guide and the yarn path when the yarn catch guide
  • arrow U indicates the upward direction of the spinning winding device 100 and the spinning take-up device 200
  • arrow D indicates the downward direction
  • Arrow F indicates the forward direction of the spinning winding device 100
  • arrow B indicates the rearward direction
  • Arrow R indicates the rightward direction of the spinning winding device 100
  • arrow L indicates the leftward direction.
  • the front-to-rear direction of the spinning winding device 100 coincides with the axial direction of the bobbin B attached to the spinning winding device 100.
  • the front-to-rear direction may be referred to as the axial direction of the bobbin B.
  • Fig. 1 is a schematic diagram of a yarn take-up device 200 to which a yarn take-up device 100 according to an embodiment of the present invention is applied.
  • the yarn take-up device 200 is a device that takes up each of a plurality of yarns Y spun from a spinning device 2.
  • the yarn take-up device 200 includes a stretching section 3, take-up rollers 4 and 5, an interlace 6, a yarn take-up device 100, etc.
  • the operation of the yarn take-up device 200 is controlled by a control device 8.
  • the spinning device 2 is disposed above the spinning take-up device 200.
  • the polymer supplied from the polymer supply device (not shown) is pushed downward from the spinneret, and multiple threads Y are spun out in a state aligned in the left-right direction.
  • the multiple yarns Y spun from the spinning device 2 are aligned in the left-right direction and travel along a yarn path that passes through the drawing section 3, the take-up roller 4, the interlace 6, and the take-up roller 5. Furthermore, the multiple yarns Y are distributed in the front-rear direction from the take-up roller 5, and then wound onto multiple bobbins B in the spinning winding device 100.
  • the drawing section 3 is located below the spinning device 2.
  • the drawing section 3 has an insulation box 10 and multiple heating rollers (not shown) housed within the insulation box 10.
  • the drawing section 3 draws the multiple yarns Y spun from the spinning device 2 while heating each of them using the multiple heating rollers.
  • a cutter 11 is located upstream of the drawing section 3 to cut the multiple yarns Y to stop winding if the yarn breaks, etc.
  • the multiple yarns Y drawn in the drawing section 3 are sent to the spinning winding device 100 by the take-up rollers 4 and 5.
  • An interlace 6 is disposed between the take-up rollers 4 and 5.
  • the interlace 6 entangles the multiple filaments that make up one yarn Y to impart bundling properties.
  • the interlace 6 can be configured to entangle the filaments by an air flow sprayed from an air nozzle, for example.
  • the take-up winding device 100 is a device that winds a plurality of yarns Y spun from the spinning device 2 onto a plurality of bobbins B.
  • the take-up winding device 100 is disposed below the take-up roller 5.
  • the take-up winding device 100 simultaneously winds a plurality of yarns Y sent from the take-up roller 5 onto a plurality of bobbins B to form a plurality of packages P.
  • the take-up winding device 100 includes a machine base 20, a turret 21, a bobbin holder 22, a support frame 23, a contact roller 26, a traverse device 30, and the like.
  • the turret 21 is a disk-shaped member rotatably attached to the machine base 20.
  • the turret 21 is driven to rotate by a turret motor (not shown) around an axis 21a parallel to the front-rear direction.
  • Two long cylindrical bobbin holders 22 are cantilevered by the turret 21 in a position extending in the front-rear direction.
  • the two bobbin holders 22 are attached at two positions symmetrical to each other with respect to the center of rotation of the turret 21.
  • Each bobbin holder 22 is driven to rotate by a bobbin holder motor (not shown) around an axis 22a parallel to the front-rear direction.
  • the two bobbin holders 22 can be switched between an upper winding position and a lower retracted position by the rotation of the turret 21.
  • Each bobbin holder 22 is fitted with multiple bobbins B (eight in this embodiment) lined up in the axial direction.
  • the bobbin holder 22 located at the upper winding position is rotated by the bobbin holder motor, and yarn Y is wound onto each of the multiple bobbins B held by the bobbin holder 22 to form a package P.
  • the turret 21 rotates, swapping the bobbin holder 22 located at the upper winding position with the bobbin holder 22 located at the lower retracted position, and the bobbin holder 22 that forms the package P is switched.
  • the support frame 23 is a long frame-like member that extends in the front-rear direction.
  • the rear end of the support frame 23 is cantilevered by the machine base 20.
  • a roller support member 25 is attached to the lower part of the support frame 23 so that it can move up and down relative to the support frame 23.
  • the roller support member 25 is provided with a contact roller 26, multiple fulcrum guides 27, and multiple traverse devices 30.
  • the contact roller 26 extends along the axial direction of the bobbin holder 22 and is rotatably supported by the roller support member 25.
  • the contact roller 26 comes into contact with the surfaces of multiple packages P formed in the bobbin holder 22 at the winding position and rotates at a surface speed substantially the same as the surface speed of the packages P, delivering the yarn Y to the packages P and applying a predetermined contact pressure to the packages P to shape the packages P.
  • the multiple fulcrum guides 27 and multiple traverse devices 30 are positioned to correspond to the positions of the multiple bobbins B attached to the bobbin holder 22.
  • the fulcrum guide 27 is the center of the reciprocating movement of the yarn Y by the traverse device 30.
  • Fig. 2 is a schematic diagram of the traverse device 30 and the threading device 40.
  • the surface viewed from the direction of Fig. 2 is the front surface of the traverse device 30 and the threading device 40.
  • the traverse device 30 and the threading device 40 are viewed from a direction perpendicular to the surface of the traverse guide 31 provided in the traverse device 30.
  • the direction D1 in Fig. 2 is perpendicular to the above-mentioned front direction and indicates the direction in which the threading device 40 is viewed from the guide end 32 side, which is the end of the traverse guide 31.
  • Fig. 3 is a schematic diagram of the traverse device 30 and the threading device 40 viewed from the direction D1 in Fig. 2.
  • the multiple traverse devices 30 are disposed below the corresponding fulcrum guides 27.
  • the traverse devices 30 move the yarn Y to be wound onto the corresponding bobbins B back and forth in the forward and backward directions (the axial direction of the bobbins B).
  • the traverse device 30 has a traverse guide 31 and two blade guides 35, 36.
  • the traverse guide 31 is a plate-shaped member, and is arranged so that the guide end 32 extends in the front-to-rear direction (the axial direction of the bobbin B).
  • the reciprocating yarn Y comes into contact with the guide end 32, which guides the yarn Y in the front-to-rear direction (the axial direction of the bobbin B).
  • the two blade guides 35, 36 move the yarn Y back and forth in the traverse range R, centered on the fulcrum guide 27 arranged above the traverse device 30.
  • the surface 31A of the traverse guide 31 is the upstream surface in the running direction DT of the yarn Y (the surface on the front side of the paper in FIG. 2, see FIG. 3) and the opposite surface is the back surface 31B of the traverse guide 31 (the surface on the back side of the paper in FIG. 2, see FIG. 3)
  • the two blade guides 35, 36 are arranged on the back surface 31B side of the traverse guide 31 and are configured to rotate in opposite directions.
  • FIG. 2 shows the state in which the respective ends 351, 361 of the two blade guides 35, 36 are visible from below the guide end 32 of the traverse guide 31.
  • the yarn Y that comes into contact with the traverse guide 31 is moved forward by one of the blade guides 35 that rotates from rear to front, and when it reaches the front end of the traverse range R, it is handed over to the other blade guide 36 that rotates from front to rear.
  • the handed over yarn Y is moved backward by the other blade guide 36, and when it reaches the rear end of the traverse range R, it is handed over to the blade guide 35 again.
  • the yarn Y is moved back and forth in the traverse range R around the fulcrum guide 27.
  • the guide end 32 of the traverse guide 31 corresponds to the position where the traverse guide 31 contacts the thread Y.
  • This contact position also moves back and forth in the axial direction of the bobbin B as the thread Y moves back and forth in the traverse range R by the traverse device 30. Therefore, the portion of the guide end 32 that is included in the traverse range R (contact trajectory 32R) corresponds to the "trajectory (contact trajectory) defined by the contact position between the traverse guide and the thread moving back and forth in the axial direction of the bobbin" in this invention.
  • the traverse device 30 is configured to have a traverse guide 31 and two blade guides 35, 36, but other configurations may be used as the traverse device.
  • the traverse guide may be a member that engages with the yarn Y, and the yarn Y may be moved back and forth in the forward and backward directions by reciprocating the traverse guide in the forward and backward directions.
  • a roughly U-shaped guide portion may be provided at the tip of the traverse guide, and the yarn Y may be engaged by pinching it.
  • the traverse guide may be moved back and forth in the forward and backward directions, for example, by the rotational drive of a traverse cam.
  • the threading device 40 is a device that hooks and fixes the multiple yarns Y on thread fixing portions S formed on the multiple bobbins B, and sets them as winding start points.
  • the threading device 40 is provided to correspond to each traverse device 30. For example, when switching the multiple bobbins B around which the multiple yarns Y are wound to new multiple bobbins B, the threading device 40 hooks and fixes the multiple yarns Y on the thread fixing portions S formed on the new multiple bobbins B, and sets them as winding start points.
  • FIG. 4 is a diagram showing a bobbin B and a thread fixing portion S formed on the bobbin B.
  • the thread fixing portion S of the bobbin B is a slit formed in the circumferential direction of the bobbin B near one end of the bobbin B.
  • multiple bobbins B are attached to the bobbin holder 22 so that the thread fixing portion S is located on the front end side of the bobbin holder 22.
  • a new bobbin B is threaded by the threading device 40 fixing the thread Y by biting it into the thread fixing portion S (slit).
  • the threading device 40 has a thread capture guide 50 and a guide drive member 60.
  • the yarn capture guide 50 is driven by the guide drive member 60 and is capable of moving along the traverse guide 31 in the axial direction of the bobbin B (see Figures 9 to 12).
  • the yarn capture guide 50 is driven by the guide drive member 60 and is capable of changing the distance in the running direction DT of the yarn Y relative to the contact locus 32R (see Figures 9 to 13).
  • the yarn capture guide 50 is driven by the guide drive member 60 and is capable of changing the distance in the axial direction of the bobbin B relative to the contact locus 32R.
  • the yarn capture guide 50 can be switched between a position close to the traverse guide 31 and a position away from the traverse guide 31 by moving the yarn capture guide 50 in the axial direction of the bobbin B and changing the distance of the yarn capture guide 50 in the running direction DT of the yarn Y with respect to the contact locus 32R.
  • the yarn capture guide 50 can be switched between a position close to the traverse guide 31 and a position away from the contact locus 32R as viewed from the axial direction of the bobbin B by moving the yarn capture guide 50 in the axial direction of the bobbin B.
  • the distance from the traverse guide 31 to the yarn capture guide 50 can be changed by moving the yarn capture guide 50 up and down with respect to the contact locus 32R as viewed from the axial direction of the bobbin B.
  • the capture section 51 captures the yarn Y reciprocated by the traverse device 30, and also releases the captured yarn Y.
  • the capture section 51 is formed with a slit through which the yarn Y can be inserted.
  • An opening section 52 is formed at the end of the capture section 51.
  • the opening section 52 is formed at the end of the capture section 51 that is closer to the guide drive member 60, and is open toward the center of the traverse range R.
  • the yarn Y can enter and exit the slit of the capture section 51 via the opening section 52.
  • the yarn Y is captured by the yarn capture guide 50 by entering the capture section 51 via the opening section 52, and is released from the yarn capture guide 50 by exiting the capture section 51 via the opening section 52.
  • the thread introduction guide 54 guides the thread Y to the opening 52 of the capture section 51, allowing the thread Y to be captured by the capture section 51.
  • the thread introduction guide 54 is formed at the end of the thread capture guide 50 in the front-to-rear direction that is closest to the center of the traverse range R.
  • the thread introduction guide 54 is formed so that it comes into contact with the thread Y, which is moved back and forth by the traverse device 30, when the thread capture guide 50 is moved in the axial direction of the bobbin B to be positioned inside the traverse range R.
  • the yarn introduction guide 54 is formed to be inclined with respect to the guide end 32 of the traverse guide 31 so that the abutting yarn Y is guided to the open section 52.
  • the yarn capture guide 50 is positioned inside the traverse range R and the yarn Y reciprocated by the traverse device 30 abuts against the yarn introduction guide 54, the yarn Y moves toward the front end of the traverse range R.
  • a force toward the front end of the traverse range R acts on the yarn Y. Due to the action of this force, the yarn Y is guided along the inclination of the yarn introduction guide 54 to the open section 52 of the capture section 51, and enters from the open section 52 into the capture section 51 to be captured.
  • the guide drive member 60 moves the thread capture guide 50 along the traverse guide 31 in the axial direction of the bobbin B.
  • the guide drive member 60 also changes the distance of the thread capture guide 50 in the running direction DT of the thread Y relative to the contact trajectory 32R.
  • the guide drive member 60 moves the thread capture guide 50 along the traverse guide 31, and switches the thread capture guide 50 between a position where it is close to the traverse guide 31 and a position where it is separated from the traverse guide 31 (see Figures 9 to 12).
  • the guide drive member 60 has a drive unit 61 and a guide unit 70.
  • the driving unit 61 drives the thread capture guide 50 in the axial direction of the bobbin B.
  • an air cylinder is used as the driving unit 61.
  • the rod 62 of the driving unit 61 is connected to the guide portion 70 (insertion portion 73) via a clamp 63 (see FIG. 5).
  • the driving force of the driving unit 61 in the front-rear direction is transmitted to the thread capture guide 50 via the guide portion 70 (insertion portion 73).
  • a driving source other than an air cylinder can be used as the driving unit 61.
  • the guide section 70 guides the yarn capture guide 50 in the axial direction of the bobbin B along the traverse guide 31, and changes the distance in the running direction DT of the yarn Y relative to the contact trajectory 32R.
  • the guide section 70 has a guide section main body 71, an insertion section 73, and a cam member 80.
  • the guide body 71 is disposed near the front end of the traverse guide 31. Inside the guide body 71, the insertion part 73 is held so that it can move in the front-rear direction. The insertion part 73 is also held so that it can swing around the axis 73a relative to the guide body 71.
  • the insertion portion 73 is a generally cylindrical member.
  • the thread capture guide 50 is connected to the insertion portion 73 via a connecting portion 74.
  • the guide body 71 is formed with an opening 78 through which the connecting portion 74 is inserted.
  • a connecting end portion 75 is provided at the rear end of the insertion portion 73.
  • the driving portion 61 is connected to the connecting end portion 75 via a clamp 63.
  • the insertion portion 73 is connected to the clamp 63 so as to be swingable around an axis 73a.
  • the cam member 80 is a member that guides the insertion portion 73 in the front-rear direction and also guides the insertion portion 73 to swing around the axis 73a.
  • the insertion portion 73 which is driven in the front-rear direction by the drive unit 61, is guided by the cam member 80, and the position of the insertion portion 73 is changed in the front-rear direction and around the axis 73a.
  • the yarn capture guide 50 connected to the insertion portion 73 changes its distance in the running direction DT of the yarn Y relative to the contact trajectory 32R, and switches between a position close to the traverse guide 31 and a position away from it.
  • the cam member 80 is housed in a cam housing portion 81 provided in the guide body 71.
  • a biasing member 82 that biases the cam member 80 toward the insertion portion 73 is disposed in the cam housing portion 81.
  • a leaf spring for example, can be used as the biasing member 82.
  • the cam member 80 and biasing member 82 housed in the cam housing portion 81 are positioned by an attachment member 83 that is attached to the outside of the guide body 71.
  • the cam member 80 is biased toward the insertion portion 73 by the biasing member 82, so that the cam member 80 and the guided portion 76 maintain a predetermined contact pressure even if the posture of the insertion portion 73 changes or the contact position between the guided portion 76 and the cam member 80 changes.
  • the mounting member 83 is detachable, and maintenance such as replacing the cam member 80 and biasing member 82 can be performed by removing the mounting member 83.
  • the insertion portion 73 is assembled to the guide body 71 by inserting it from the front to the rear.
  • the guide body 71 has an opening 78 through which the connecting portion 74 is inserted.
  • a cam member 80 and a biasing member 82 are positioned by an attachment member 83 (see Figure 2).
  • the guided part 76 of the insertion part 73 abuts against and is guided by the cam member 80 inside the guiding body 71.
  • the guided part 76 is guided by the cam member 80, and the position of the insertion part 73 is changed in the front-rear direction and around the axis 73a, so that the position of the thread capture guide 50 connected to the insertion part 73 is switched between a position close to the traverse guide 31 and a position away from it, as shown by the arrow DR in FIG. 5(a).
  • This makes it possible to switch the position of the thread capture guide 50 to a capture position PA1 (see FIG. 9), a thread pull-up position PA2 (see FIG. 10), a thread release position PA3 (see FIG. 11), and a standby position PA4 (see FIG. 12).
  • Fig. 6 is a diagram showing a path portion along which the cam member 80 guides the guided portion 76.
  • Fig. 7 is a diagram showing a state in which the cam member 80 guides the guided portion 76.
  • Fig. 8(a) is a diagram for explaining the configuration of the cam member 80, and Fig. 8(b) is an enlarged perspective view of the area from line A1-A1 to line A2-A2 in Fig. 8(a).
  • the guided portion 76 of the insertion portion 73 is guided by the cam member 80, and the position of the thread capture guide 50 is switched between the capture position PA1, the thread pull-up position PA2, the thread release position PA3, and the standby position PA4.
  • the cam member 80 has path sections set so that the guided portion 76 is guided along a predetermined path to switch the position of the thread catching guide 50.
  • the cam member 80 has a first path section 91, a second path section 92, a third path section 93, and a fourth path section 94.
  • the first path portion 91 guides the guided portion 76 so that the yarn catching guide 50 can be switched from the catching position PA1 to the yarn pulling position PA2.
  • the second path portion 92 guides the guided portion 76 so that the yarn catching guide 50 can be switched from the yarn pulling position PA2 to the yarn removing position PA3.
  • the third path portion 93 guides the guided portion 76 so that the yarn catching guide 50 can be switched from the yarn removing position PA3 to the standby position PA4.
  • the fourth path portion 94 guides the guided portion 76 so that the yarn catching guide 50 switches from the standby position PA4 to the catching position PA1.
  • the respective path portions are connected by a connection portion so that the guided portion 76 is guided in sequence to the first path portion 91, the second path portion 92, the third path portion 93, and the fourth path portion 94.
  • the first path portion 91 and the fourth path portion 94 are connected at a first connection portion 101 .
  • the first path portion 91 and the second path portion 92 are connected at a second connection portion 102 .
  • the second path portion 92 and the third path portion 93 are connected at a third connection portion 103 .
  • the third path portion 93 and the fourth path portion 94 are connected at a fourth connection portion 104 .
  • the start point (end point) of each path portion corresponds to the following postures of the yarn catching guide 50.
  • the yarn capturing guide 50 is in a capturing position PA1 (see FIG. 9).
  • FIG. 7B when the guided portion 76 is located at the second connection portion 102, which is the starting point of the second path portion 92 (the end point of the first path portion 91) (second cam position), the yarn capturing guide 50 is in the yarn pulling position PA2 (see FIG. 10).
  • FIG. 7(a) when the guided portion 76 is located at the first connection portion 101, which is the starting point of the first path portion 91 (the end point of the fourth path portion 94) (first cam position), the yarn capturing guide 50 is in a capturing position PA1 (see FIG. 9).
  • FIG. 7B when the guided portion 76 is located at the second connection portion 102, which is the starting point of the second path portion 92 (the end point of the first path portion 91) (second cam position), the yarn capturing guide 50 is in the yarn
  • first connection portion 101 first cam position
  • second connection portion 102 second cam position
  • FIG. 7(b) first cam position
  • the posture of the insertion portion 73 changes only in the front-rear direction.
  • the thread capture guide 50 can be switched from the capture posture PA1 to the thread pull-up posture PA2 while remaining close to the traverse guide 31 (see FIGS. 9 and 10).
  • the second connection portion 102 (second cam position) (FIG. 7(b)) and the third connection portion 103 (third cam position) (FIG. 7(c)) not only differ in position in the front-rear direction, but also in the direction intersecting the front-rear direction. Therefore, when the guided portion 76 is guided from the second connection portion 102 (second cam position) through the second path portion 92 to the third connection portion 103 (third cam position), the position of the insertion portion 73 changes not only in the front-rear direction, but also around the axis 73a. As a result, the thread capture guide 50 is switched to the thread removal position PA3 while gradually moving away from the traverse guide 31 from a state close to it (see FIGS. 10 and 11).
  • the third connection portion 103 (third cam position) (FIG. 7(c)) and the fourth connection portion 104 (fourth cam position) (FIG. 7(d)) are not only different in position in the front-rear direction, but also in the direction intersecting the front-rear direction. Therefore, when the guided portion 76 is guided from the third connection portion 103 (third cam position) through the third path portion 93 to the fourth connection portion 104 (fourth cam position), the position of the insertion portion 73 changes further around the axis 73a. As a result, the thread capture guide 50 is switched to the standby position PA4 while moving further away from the traverse guide 31. In the standby position PA4, the thread capture guide 50 is farther away from the traverse guide 31 than in the thread pulling position PA2 (see FIGS. 11 and 12).
  • the fourth connection portion 104 (fourth cam position) (FIG. 7(d)) and the first connection portion 101 (first cam position) (FIG. 7(e)) are not only different in position in the front-rear direction, but also change in position in a direction intersecting the front-rear direction, resulting in the same state as FIG. 7(a). Therefore, when the guided portion 76 is guided from the fourth connection portion 104 (fourth cam position) through the fourth path portion 94 to the first connection portion 101 (first cam position), the position of the insertion portion 73 changes not only in the front-rear direction, but also around the axis 73a. As a result, the thread capture guide 50 is switched from a standby position PA4 away from the traverse guide 31 to a capture position PA1 while gradually approaching the traverse guide 31 (see FIGS. 12 and 9).
  • the first path portion 91 of the cam member 80 is connected to the fourth path portion 94 and the second path portion 92 at the starting point (first connection portion 101) and the end point (second connection portion 102).
  • the second path portion 92 is connected to the third path portion 93 at the end point (third connection portion 103).
  • the cam member 80 is provided with a restricting portion 120 (see FIG. 8) so that when the guided portion 76 is guided, it is reliably guided to a predetermined path at the path connection portion.
  • the restricting portion 120 restricts the guided portion 76 from entering a different path.
  • the cam member 80 has a first cam surface 111, a second cam surface 112, a third cam surface 113, a fourth cam surface 114, a fifth cam surface 115, a sixth cam surface 116, a seventh cam surface 117, an eighth cam surface 118 and a ninth cam surface 119.
  • the first cam surface 111 to the ninth cam surface 119 have different relative protrusion amounts, in other words, different protrusion amounts with respect to the guided portion 76, but all of them are cam surfaces that guide the guided portion 76.
  • a cam surface that protrudes relatively less with respect to the guided portion 76 is defined as a low-height cam surface, and a cam surface that protrudes relatively more with respect to the guided portion 76 is defined as a high-height cam surface.
  • a cam surface that is inclined so as to connect cam surfaces of different heights is called an inclined cam surface.
  • a step is a surface formed when cam surfaces of different heights are adjacent to each other, and is a portion that the guided portion 76 cannot get over when it abuts against it. The step is such that the guided portion 76 can overcome (pass through) the step in the direction from the relatively high cam surface to the low cam surface, but the guided portion 76 cannot overcome (pass through) the step in the direction from the relatively low cam surface to the high cam surface.
  • the first cam surface 111 to the ninth cam surface 119 form a first path portion 91, a second path portion 92, a third path portion 93, and a fourth path portion 94 of the cam member 80 as follows (see FIG. 6).
  • the first path portion 91 is composed of a first cam surface 111, a second cam surface 112, a third cam surface 113, a fourth cam surface 114, a fifth cam surface 115 and a sixth cam surface 116.
  • the second path portion 92 is defined by a sixth cam surface 116 , a fifth cam surface 115 , a fourth cam surface 114 and a seventh cam surface 117 .
  • the third path portion 93 is defined by a seventh cam surface 117 and an eighth cam surface 118 .
  • the fourth path portion 94 is defined by an eighth cam surface 118 , a seventh cam surface 117 , and a ninth cam surface 119 .
  • first cam surface 111 to the ninth cam surface 119 the first cam surface 111, the sixth cam surface 116, the seventh cam surface 117, the eighth cam surface 118 and the ninth cam surface 119 have the same relative protrusion amount and are the cam surfaces with the smallest relative protrusion amount among the cam surfaces that make up the cam member 80.
  • the third cam surface 113 is the cam surface with the largest relative protrusion amount
  • the fourth cam surface 114 is the cam surface with the second largest relative protrusion amount after the third cam surface 113.
  • the second cam surface 112 is an inclined cam surface that connects the first cam surface 111 and the third cam surface 113 .
  • the fifth cam surface 115 is an inclined cam surface that connects the sixth cam surface 116 and the fourth cam surface 114 .
  • a first step 121 is formed between the third cam surface 113 and the fourth cam surface 114, which are at different heights.
  • a second step 122 is formed between the fourth cam surface 114, which is at a different height, and the seventh cam surface 117 and the eighth cam surface 118.
  • a third step 123 is formed between the third cam surface 113, which is at a different height, and the seventh cam surface 117 and the ninth cam surface 119.
  • the second cam surface 112 and the third cam surface 113 are formed with protrusions 141 that extend in the front-rear direction.
  • the protrusions 141 guide the guided portion 76 in the front-rear direction by engaging with the guided groove 761 formed at the tip of the guided portion 76.
  • the guided portion 76 when the guided portion 76 is located at the first connection portion 101 (first cam position), which is the starting point of the first path portion 91 (the end point of the fourth path portion 94), the guided portion 76 may be guided to the first path portion 91 or the fourth path portion 94. This is because the first connection portion 101 (first cam position) is the connection portion between the first path portion 91 and the fourth path portion 94.
  • the protrusions 141 formed on the first cam surface 111 and the second cam surface 112 engage with the guided groove 761 of the guided portion 76, thereby allowing the guided portion 76 to advance from the first connection portion 101 toward the first path portion 91.
  • the protrusions 141 also prevent the guided portion 76 from advancing from the first connection portion 101 toward the fourth path portion 94.
  • the protrusions 141 correspond to the first regulating portion (regulating portion 120) of the present invention.
  • the guided portion 76 When the guided portion 76 is located at the second connection portion 102 (second cam position) ( Figure 7(b)), which is the starting point of the second path portion 92 (the end point of the first path portion 91), the guided portion 76 may be guided to the first path portion 91 or the second path portion 92. This is because the second connection portion 102 is the connection portion between the first path portion 91 and the second path portion 92.
  • a first step 121 is formed between the third cam surface 113, which is at a different height, and the sixth cam surface 116, the fifth cam surface 115, and the fourth cam surface 114.
  • the first step 121 allows the guided portion 76 to enter from the second connection portion 102 toward the second path portion 92.
  • the first step 121 also prevents the guided portion 76 from entering toward the first path portion 91.
  • the first step 121 corresponds to the second regulating portion (regulating portion 120) of the present invention.
  • the guided portion 76 When the guided portion 76 is located at the third connection portion 103 (third cam position) ( Figure 7(c)), which is the starting point of the third path portion 93 (the end point of the second path portion 92), the guided portion 76 may be guided to the second path portion 92 or the third path portion 93. This is because the third connection portion 103 is the connection portion between the second path portion 92 and the third path portion 93.
  • a second step 122 is formed between the fourth cam surface 114, which has a different height, and the seventh cam surface 117 and the eighth cam surface 118.
  • the second step 122 allows the guided portion 76 to enter from the third connection portion 103 toward the third path portion 93.
  • the second step 122 also prevents the guided portion 76 from entering toward the second path portion 92.
  • the second step 122 corresponds to the third regulating portion (regulating portion 120) of the present invention.
  • the guided portion 76 When the guided portion 76 is guided from the fourth connection portion 104 (fourth cam position) (FIG. 7(d)) to the first connection portion 101 (first cam position) (FIG. 7(e)), the guided portion 76 is guided to the fourth path portion 94. In this case, the guided portion 76 is guided to the second step 122 formed between the fourth cam surface 114, which has a different height, and the seventh cam surface 117 and eighth cam surface 118, and the third step 123 formed between the third cam surface 113, which has a different height, and the seventh cam surface 117 and ninth cam surface 119.
  • the first path portion 91, the second path portion 92, the third path portion 93, and the fourth path portion 94 for guiding the guided portion 76 are provided with the regulating portions 120 (the protrusions 141, the first step 121, and the second step 122). Therefore, the guided portion 76 can be guided toward a predetermined path.
  • Figure 9 is a diagram showing the state in which the yarn catch guide 50 of the threading device 40 is in a catch position PA1.
  • Figure 10 is a diagram showing the state in which the yarn catch guide 50 of the threading device 40 is in a thread pull-up position PA2.
  • Figure 11 is a diagram showing the state in which the yarn catch guide 50 of the threading device 40 is in a thread release position PA3.
  • Figure 12 is a diagram showing the state in which the yarn catch guide 50 of the threading device 40 is in a standby position PA4.
  • FIGs 9 to 12 (a) is a front view of the traverse device 30 and the threading device 40 as in Figure 2, (b) is a view from the D1 direction of (a), and (c) is a partial cross-sectional view of the traverse device 30 and the threading device 40 as seen from the front (axial direction of the bobbin B).
  • the thread capture guide 50 is switched to a standby position PA4.
  • the thread capture guide 50 is located at a standby position that is spaced from the contact trajectory 32R in the axial direction of the bobbin B.
  • the standby position and thread pull-up position refer to positions in the axial direction of the bobbin.
  • the position where the captured thread Y is hung on the thread fixing portion S of the bobbin B (thread pull-up position) and the standby position are the same position in the axial direction of the bobbin.
  • the positional relationship between the standby position and the thread pull-up position is not limited to this, and the standby position and the thread pull-up position may be different positions in the axial direction of the bobbin.
  • the turret 21 is rotated to switch the positions of the two bobbin holders 22.
  • the drive unit 61 is driven to move the yarn capture guide 50 into the traverse range R, thereby switching the yarn capture guide 50 to a capture position PA1.
  • the capture position PA1 is a position in which the yarn capture guide 50 has been moved to a position where it can capture the yarn Y that is reciprocated by the traverse device 30.
  • the yarn Y which is reciprocated by the traverse device 30, comes into contact with the yarn capture guide 50.
  • the abutting yarn Y is guided along the inclination of the yarn introduction guide 54 to the opening 52 of the capture section 51, and enters the capture section 51 from the opening 52 to be captured.
  • the drive unit 61 is driven to move the thread capture guide 50 forward, so that the thread capture guide 50 is switched to the thread pull-up position PA2.
  • the thread capture guide 50 moves the thread Y captured in the capture position PA1 to a position where it is hung on the thread fixing portion S of the bobbin B.
  • the first connection portion 101 (first cam position) (FIG. 7(a)) and the second connection portion 102 (second cam position) (FIG. 7(b)) are arranged along the front-rear direction. Therefore, when the guided portion 76 is guided from the first connection portion 101 (first cam position) through the first path portion 91 to the second connection portion 102 (second cam position), the posture of the insertion portion 73 changes only in the front-rear direction. Therefore, the thread capture guide 50 is switched from the capture posture PA1 to the thread shift posture PA2 while remaining close to the traverse guide 31. As a result, the thread capture guide 50 is switched to the thread shift posture PA2 while capturing the thread Y.
  • the position of the thread shift posture PA2 in the axial direction of the bobbin B (thread shift position) is a position where the thread Y can be hung on the thread fixing portion S formed on the bobbin B.
  • the yarn Y is hooked and fixed on the yarn fixing part S, and the yarn is hooked onto a new bobbin B.
  • a rod-wound YB is formed on the front end of the bobbin B. After the rod-wound YB is formed, the drive part 61 moves the yarn capture guide 50 backward.
  • the thread release position PA3 is a position in which the thread capture guide 50 is moved between the thread pull-up position PA2 and the capture position PA1 in the axial direction of the bobbin B, and the thread capture guide 50 is moved away from the traverse guide 31 further than the thread pull-up position PA2, releasing the thread Y captured in the capture position PA1.
  • the guided portion 76 is first guided in parallel in the front-rear direction from the second connection portion 102 (second cam position).
  • the yarn capture guide 50 moves parallel to the rear while capturing the yarn Y.
  • a spiral tail winding YT is formed on the bobbin B between the portion where the pole winding YB is formed and the portion where the yarn Y is wound (the portion shown by the dashed line in FIG. 4).
  • the second connection portion 102 (second cam position) ( Figure 7(b)) and the third connection portion 103 (third cam position) ( Figure 7(c)) are not only different in position in the front-rear direction, but also in the direction intersecting the front-rear direction. Therefore, when the guided portion 76 is guided from the second connection portion 102 (second cam position) through the second path portion 92 to the third connection portion 103 (third cam position), the position of the insertion portion 73 changes not only in the front-rear direction but also around the axis 73a. As a result, the thread capture guide 50 is switched to the thread removal position PA3 while swinging from a state close to the traverse guide 31 to a state gradually separated therefrom.
  • the position of the yarn Y changes relative to the yarn capture guide 50, as shown in FIG. 11(c).
  • the yarn Y moves to the opening 52 formed in the capture section 51 of the yarn capture guide 50, and is released from the yarn capture guide 50 by exiting the capture section 51 through the opening 52.
  • the yarn Y released from the yarn capture guide 50 is captured by the blade guides 35, 36, and is wound onto the bobbin B while being reciprocated by the traverse device 30.
  • the standby position PA4 is a position in which, with the thread released, the thread capture guide 50 is moved to a standby position and is spaced further away from the traverse guide 31 than the thread pull-up position PA2.
  • the standby position PA4 is a position in which, with the thread released, the thread capture guide 50 is moved to a standby position that is further away from the contact locus 32R in the axial direction of the bobbin B, and the thread capture guide 50 is moved upward with respect to the contact locus 32R than the thread pull-up position PA2.
  • the third connection portion 103 (third cam position) (FIG. 7(c)) and the fourth connection portion 104 (fourth cam position) (FIG. 7(d)) are not only different in position in the front-rear direction, but also in the direction intersecting the front-rear direction. Therefore, when the guided portion 76 is guided from the third connection portion 103 (third cam position) through the third path portion 93 to the fourth connection portion 104 (fourth cam position), the change in the posture of the insertion portion 73 around the axis 73a becomes even greater. Therefore, the thread capture guide 50 is switched to the standby posture PA4 while swinging so as to be further separated from the traverse guide 31. In the standby posture PA4, the thread capture guide 50 is farther away from the traverse guide 31 than in the thread pulling posture PA2.
  • Figure 13 is a diagram explaining the distance between the yarn catch guide 50 and the yarn path in the standby position.
  • Figure 13 shows the relationship between the position of the traverse guide 31 and the yarn path at the end of the traverse range R in the yarn pull-up position PA2 and standby position PA4.
  • the thread capture guide 50 is moved to the thread shifting position while remaining close to the traverse guide 31.
  • the thread capture guide 50 is moved upward and to the standby position in which it is further away from the traverse guide 31 than in the thread shifting position PA2.
  • the standby position and the thread shifting position are the same position in the axial direction of the bobbin B.
  • the yarn Y reciprocated by the traverse device 30 reciprocates around the fulcrum guide 27, which is located upstream in the running direction DT of the yarn Y.
  • the yarn Y which travels reciprocatingly from the fulcrum guide 27 toward the guide end 32 of the traverse guide 31, travels while changing the inclination angle ⁇ 1 with respect to the guide end 32.
  • the inclination angle ⁇ 1 of the yarn Y with respect to the extending direction of the guide end 32 (the axial direction of the bobbin B) is the largest.
  • the yarn catch guide 50 that has been moved to the standby position has a smaller distance between it and the contact trajectory 32R as viewed from the axial direction of the bobbin B. Also, the distance between the yarn catch guide 50 and the running yarn Y increases as the distance between the yarn catch guide 50 and the contact trajectory 32R as viewed from the axial direction of the bobbin B increases.
  • the positions of the thread capture guide 50 in the thread pull-up position PA2 and the standby position PA4 are the same in the axial direction of the bobbin B (thread pull-up position and standby position).
  • the thread capture guide 50 in the standby position PA4 is farther away from the traverse guide 31 than the thread capture guide 50 in the thread pull-up position PA2.
  • the thread capture guide 50 in the standby position PA4 is positioned higher in the axial direction of the bobbin B than the thread capture guide 50 in the thread pull-up position PA2, and its distance to the contact locus 32R is greater.
  • the distance L2 between the thread capture guide 50 and the thread path in the standby position PA4 is greater than the distance L1 between the thread capture guide 50 and the thread path in the thread pull-up position PA2.
  • the yarn catch guide 50 is positioned farther away from the contact trajectory 32R than in the yarn pull-over position PA2, thereby ensuring a sufficient distance from the yarn path.
  • the position of the thread capture guide 50 in the axial direction of the bobbin B is the same in the thread pull-up position PA2 and the standby position PA4, but this is not limited to this.
  • the position of the thread pull-up position PA2 in the axial direction of the bobbin B (thread pull-up position) and the position of the standby position PA4 in the axial direction of the bobbin B (standby position) may be different positions.
  • the position of the standby position PA4 in the axial direction of the bobbin B (standby position) may be set farther away from the contact locus 32R than the position of the thread pull-up position PA2 (thread pull-up position).
  • a cam member is used in the guide section, but this is not limiting.
  • a path section that guides the guided section may be formed directly on the guide section main body.
  • some of the path sections may be formed with cam members, and the remaining path sections may be formed directly on the guide section main body.
  • the cam member is provided with regulating sections (first regulating section, second regulating section, third regulating section) that regulate the path, and the second regulating section and the third regulating section are formed by steps on the cam surface, but other means may be used.
  • the second regulating section and the third regulating section may be formed by a protrusion formed on the cam surface and a guided groove formed in the guided section, similar to the first regulating section.
  • the posture of the insertion part held in the guide body is swung around an axis to switch the posture of the thread capture guide between a posture close to the traverse guide and a posture separated from it, but this is not limited to this.
  • the posture of the thread capture guide may be switched between a posture close to the traverse guide and a posture separated from it by other configurations.
  • the posture of the thread capture guide may be switched between a posture close to the traverse guide and a posture separated from it without swung.
  • a mechanism for operating a link mechanism with an actuator may be used as a mechanism for switching the posture of the thread capture guide between a thread pull-up posture and a standby posture that is further away from the contact locus than the thread pull-up posture.
  • the present invention is applicable to a spinning winding device that winds multiple yarns spun from a spinning device onto multiple bobbins to form multiple packages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Abstract

La présente invention permet d'augmenter la quantité d'enroulement d'un paquet et de modifier la position d'enroulement de fil par rapport à une bobine en assurant une distance par rapport à un trajet de fil dans un état dans lequel un guide de capture de fil est placé dans une position d'attente, sans affecter une fonction d'accrochage de fil d'un dispositif d'accrochage de fil.　Un dispositif d'accrochage de fil (40) comprend : un guide de capture de fil (50) pour capturer et libérer un fil (Y) qui est entraîné en va-et-vient par un dispositif de déplacement (30) ; et un élément d'entraînement de guide (60) pour commuter la position du guide de capture de fil (50) entre une position de guidage de fil (PA2) pour placer le fil capturé (Y) dans une position pour accrocher le fil capturé (Y) à une partie de fixation de fil (S) d'une bobine (B), et une position d'attente (PA4) qui est, dans un état dans lequel le fil (Y) est libéré, plus éloignée d'une trajectoire de contact (32R) que la position de guidage de fil (PA2). Lorsqu'il est commuté sur la position d'attente (PA4), le guide de capture de fil (50) est séparé de la trajectoire de contact (32R) dans la direction axiale de la bobine (B) et est séparé de la trajectoire de contact (32R) vu de la direction axiale de la bobine (B).
PCT/JP2024/038783 2023-11-01 2024-10-30 Dispositif d'enroulement rotatif Pending WO2025095025A1 (fr)

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JP2023188056 2023-11-01
JP2023-188056 2023-11-01

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0188680U (fr) * 1987-12-01 1989-06-12
JP2002096970A (ja) * 2000-09-25 2002-04-02 Toray Ind Inc 糸条パッケージの製造装置および製造方法
JP2017154891A (ja) * 2016-02-29 2017-09-07 Ｔｍｔマシナリー株式会社 紡糸引取機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0188680U (fr) * 1987-12-01 1989-06-12
JP2002096970A (ja) * 2000-09-25 2002-04-02 Toray Ind Inc 糸条パッケージの製造装置および製造方法
JP2017154891A (ja) * 2016-02-29 2017-09-07 Ｔｍｔマシナリー株式会社 紡糸引取機

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