EP2905249A1 - Spuleneinstellungsvorrichtung und Garnwickelmaschine - Google Patents

Spuleneinstellungsvorrichtung und Garnwickelmaschine Download PDF

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Publication number
EP2905249A1
EP2905249A1 EP14195454.5A EP14195454A EP2905249A1 EP 2905249 A1 EP2905249 A1 EP 2905249A1 EP 14195454 A EP14195454 A EP 14195454A EP 2905249 A1 EP2905249 A1 EP 2905249A1
Authority
EP
European Patent Office
Prior art keywords
bobbin
section
gripping section
gripping
yarn
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.)
Granted
Application number
EP14195454.5A
Other languages
English (en)
French (fr)
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EP2905249B1 (de
Inventor
Kenichi Ueda
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.)
Murata Machinery Ltd
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Murata Machinery Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP2905249A1 publication Critical patent/EP2905249A1/de
Application granted granted Critical
Publication of EP2905249B1 publication Critical patent/EP2905249B1/de
Not-in-force 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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
    • B65H67/0417—Arrangements for removing completed take-up packages or for loading an empty core for loading an empty core
    • 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 configuration of a bobbin setting device provided in a yarn winding machine. Specifically, the present invention relates to a configuration of a gripping section in the bobbin setting device adapted to grip a bobbin to be newly set.
  • a yarn winding machine such as a fine spinning machine and an automatic winder is a machine that winds a yarn around a bobbin.
  • a yarn winding machine of this kind includes a pair of bobbin holders adapted to rotatably support the bobbin.
  • Patent Document 1 discloses a cradle adapted to hold the bobbin by sandwiching the bobbin in an axial direction of the bobbin by a fixed holder and a movable holder.
  • One of the bobbin holders (the movable holder) is adapted to be movable in a direction to be close to the other of the bobbin holders (the fixed holder) or in a direction to be away from the other of the bobbin holders (the fixed holder).
  • the winding bobbin is sandwiched in the axial direction by the bobbin holders, and the winding bobbin can be held at a predetermined position.
  • the winding bobbin held by the bobbin holders can be removed.
  • Patent Document 1 describes an automatic doffing device adapted to transport the bobbin to the position between the fixed holder and the movable holder of the cradle.
  • the automatic doffing device includes an arm provided with a gripping section adapted to grip an empty bobbin. By the arm vertically swinging while the gripping section is gripping the empty bobbin, the empty bobbin is transported to the position between the bobbin holders.
  • Patent Document 1 points out that when the movable holder is moved towards the fixed holder after the arm has transported the empty bobbin to the position between the bobbin holders, a movement of the empty bobbin is restricted by the gripping section. Patent Document 1 describes that a positional displacement of an end of the bobbin that is required to be held by the fixed holder is magnified by such a problem of the conventional art, and thereby an error occurs in setting the empty bobbin.
  • Patent Document 1 discloses a configuration in which there is provided a sliding mechanism for moving the empty bobbin in the axial direction until an end portion of the empty bobbin transported to the position between both holders of the cradle becomes close to the fixed holder. Patent Document 1 describes that an error in setting the empty bobbin to the cradle can be prevented by such a configuration.
  • Patent Document 1 requires a sliding mechanism formed of a link mechanism and a cam element to move the arm in a sliding manner, which causes a problem that a configuration of the doffing device becomes complicated.
  • Patent Document 1 requires an operation in which after the empty bobbin has been transported to the position between the pair of bobbin holders, the sliding mechanism is operated and the empty bobbin is moved in a parallel manner to position the end of the bobbin. Therefore, there is a concern that time required for setting the empty bobbin may be longer in comparison with a conventional bobbin setting device.
  • An object of the present invention is to provide a bobbin setting device that can prevent an error in setting the bobbin with a simple configuration.
  • a bobbin setting device includes a bobbin gripping section and a sliding mechanism.
  • the bobbin gripping section is adapted to grip a bobbin.
  • the sliding mechanism is adapted to enable the bobbin gripping section to slide with the bobbin gripped by the bobbin gripping section in an axial direction of the bobbin by an external force.
  • the external force may be a force other than a gripping force of the bobbin gripping section, applied to the bobbin.
  • the bobbin gripping section can be slid in the axial direction of the bobbin, the movement of the bobbin is not disturbed. Accordingly, an error in setting the bobbin can be prevented. Since the slide of the bobbin gripping section is executed by an external force, such as the force other than the gripping force of the bobbin gripping section applied to the bobbin gripped by the bobbin gripping section, a drive source or the like for the sliding is not required to be provided separately. Accordingly, the bobbin setting device can be simply configured. Furthermore, since the bobbin gripping section is slid by the force applied to the bobbin, a special movement for the slide is not required, and thus an extra time for the slide movement is not required. Time required for setting the bobbin thus does not become long.
  • a bobbin setting device includes a bobbin gripping section and a sliding mechanism.
  • the bobbin gripping section is adapted to grip a bobbin.
  • the sliding mechanism is adapted to enable the bobbin gripping section to slide in an axial direction of the bobbin gripped by the bobbin gripping section.
  • the bobbin setting device is not provided with a structure adapted to transmit a driving force for the slide to the bobbin gripping section.
  • the bobbin gripping section is slid by the force applied to the bobbin, the driving force for the slide is transmitted to the bobbin gripping section via the bobbin. Therefore, the structure for transmitting the driving force to the bobbin gripping section is not required to be provided separately. Accordingly, the bobbin setting device can be simply configured.
  • the sliding mechanism preferably includes a supporting member adapted to support the bobbin gripping section, and a slide shaft arranged in parallel with the axial direction of the bobbin gripped by the bobbin gripping section and adapted to slidably support the supporting member.
  • the bobbin gripping section can be stably and smoothly slid.
  • the bobbin setting device preferably further includes a gripping-section drive source adapted to switch the bobbin gripping section between a gripping state in which the bobbin gripping section is gripping the bobbin and a released state in which the bobbin gripping section has released the bobbin.
  • the sliding mechanism is adapted to enable the gripping-section drive source to slide with the bobbin gripping section.
  • the bobbin setting device preferably includes an urging member adapted to urge the bobbin gripping section towards a standard position.
  • the bobbin gripping section By the urging force of the urging member, the bobbin gripping section can be held at the standard position. Accordingly, the bobbin gripping section can be prevented from unnecessarily sliding by a vibration and/or a shock, and thereby a position of the bobbin gripped by the bobbin gripping section can be stabilized.
  • the urging member is preferably a spring.
  • the spring is adapted to urge the bobbin gripping section in a direction opposite to a direction of the force, which is a force other than the gripping force of the bobbin gripping section, applied to the bobbin gripped by the bobbin gripping section.
  • the bobbin gripping section that has released the holding of the bobbin can be returned to the standard position by the urging force of the spring.
  • a bobbin setting device includes an arm member, a bobbin gripping section, a sliding mechanism, and an urging member.
  • the arm member is swingable.
  • the bobbin gripping section is arranged at a tip-end region of the arm member and is adapted to grip a bobbin.
  • the sliding mechanism is adapted to enable the bobbin gripping section to slide with respect to the arm member in an axial direction of the bobbin gripped by the bobbin gripping section.
  • the urging member is adapted to urge the bobbin gripping section towards a standard position.
  • Patent Document 1 Since a configuration of Patent Document 1 is a configuration in which a whole arm member is slid, fluttering or the like occurs at a base-end portion of the arm member and thus the whole arm member cannot be smoothly slid in some cases. Therefore, as described above, by configuring the bobbin gripping section to slide with respect to the arm member, the whole arm member is not required to be slid. In this manner, since only the bobbin gripping section that is required to be slid is slid, the bobbin gripping section can be smoothly slid.
  • a yarn winding machine includes the above-described bobbin setting device, a yarn supplying section, and a bobbin supporting section.
  • the yarn supplying section is adapted to supply a yarn to be wound around the bobbin.
  • the bobbin supporting section is arranged movable between a supporting position where the bobbin supporting section can support the bobbin and a releasing position where the support is released.
  • the bobbin supporting section is adapted to push the bobbin gripped by the bobbin gripping section in the axial direction when the bobbin supporting section moves from the releasing position towards the supporting position.
  • the bobbin gripping section is adapted to slide with the bobbin by a force of the bobbin supporting section pushing the bobbin.
  • the bobbin supporting section When moving the bobbin supporting section from the releasing position to the supporting position, the bobbin supporting section pushes the bobbin. By the force for pushing the bobbin in this manner, the bobbin gripping section gripping the bobbin can be slid. With the above-described configuration, the movement of the bobbin supporting section from the releasing position to the supporting position is not disturbed by the bobbin gripping section. Accordingly, by the bobbin supporting section that has moved to the supporting position, the bobbin can be appropriately supported.
  • the yarn supplying section preferably includes a drafting device and a pneumatic spinning device.
  • the drafting device is adapted to draft a fiber bundle.
  • the pneumatic spinning device is adapted to produce a yarn by applying twists to the fiber bundle, which has been supplied from the drafting device, using whirling airflow.
  • the yarn winding machine including the pneumatic spinning device even when the bobbin is being set by the bobbin setting device, the yarn is continuously spun from the pneumatic spinning device. In order to not waste the yarn, setting the bobbin needs to be promptly and smoothly performed.
  • the bobbin setting device of the present invention to the yarn winding machine including the pneumatic spinning device, the yarn is prevented from being wasted and the bobbin can be efficiently set.
  • the above-described yarn winding machine preferably includes a contact roller and a cancelling section.
  • the contact roller is adapted to make contact with the bobbin when the yarn is wound around the bobbin.
  • the cancelling section is adapted to cancel a contacting state of the bobbin and the contact roller when the bobbin setting device sets the bobbin to the bobbin supporting section.
  • the position of the bobbin is likely to be unstable in a state in which the contact between the bobbin and the contact roller has been cancelled, bobbin setting in this state used to fail in some cases due to such an unstability.
  • an error in setting the bobbin can be prevented, and thus the bobbin can be reliably set even in an unstable situation in which the bobbin is not in contact with the contact roller.
  • upstream and downstream respectively indicate upstream and downstream in a traveling direction of a yarn at the time of spinning.
  • a fine spinning machine 1 as a yarn winding machine illustrated in Fig. 1 includes a number of spinning units (winding units) 2 arranged side by side, a yarn joining vehicle 3, and a doffing vehicle 4.
  • each of the spinning units 2 includes a yarn supplying section 11, a yarn monitoring device 49, a yarn accumulating device 12, and a winding section 13 in this order from upstream to downstream.
  • Each spinning unit 2 is adapted to wind a spun yarn 10 supplied from the yarn supplying section 11 around a bobbin 48 to produce a package 45 (a bobbin 48 around which a predetermined length of the spun yarn 10 is wound).
  • Each spinning unit 2 includes a unit controller (not illustrated) adapted to control each component.
  • the yarn supplying section 11 includes a drafting device 7 and a spinning device 9.
  • the drafting device 7 is adapted to produce a fiber bundle 8 by drafting a sliver 15. As illustrated in Fig. 2 , the drafting device 7 includes four pairs of rollers, which are a pair of back rollers 16, a pair of third rollers 17, a pair of middle rollers 19, and a pair of front rollers 20. An apron belt 19 is provided to each roller of the pair of middle rollers 19.
  • the spinning device 9 is configured as a pneumatic spinning device adapted to produce the spun yarn 10 by applying twists to the fiber bundle 8 using whirling airflow.
  • the winding section 13 is adapted to wind the spun yarn 10 supplied from the yarn supplying section 11 around the bobbin 48.
  • the winding section 13 includes a winding drum (a contact roller) 74, a traverse guide 76 capable of guiding the spun yarn 10, and a cradle 70.
  • the winding drum 74 is adapted to be rotationally driven while making contact with an outer peripheral surface of the bobbin 48.
  • the winding section 13 rotates the bobbin 48 in contact with the winding drum 74 with the rotation of the winding drum 74. Accordingly, the spun yarn 10 is wound around the bobbin 48.
  • the traverse guide 76 is reciprocated in a direction substantially parallel to an axis of the bobbin 48. By reciprocating the traverse guide 76 while the spun yarn 10 is being guided to the traverse guide 76, the spun yarn 10 to be wound around the bobbin 48 can be traversed.
  • the cradle 70 includes a support shaft 73, a cradle arm 71 capable of swinging with the support shaft 73 as a center, and a pair of bobbin holders (a bobbin supporting section) 72a and 72b adapted to support the bobbin 48.
  • the bobbin holders 72a and 72b are each provided rotatable with respect to the cradle arm 71. As illustrated in Fig. 4A , the bobbin holders 72a and 72b are adapted to support the bobbin 48 in a rotatable manner about the axis thereof by sandwiching the bobbin 48 in an axial direction. As illustrated in Fig. 1 , in the present embodiment, the axial direction of the bobbin 48 substantially corresponds to a direction (a left-right direction of Fig. 1 ) in which the spinning units 2 are arranged. In the drawings, the bobbin 48 and the cradle arm 71 in Fig. 1 and the bobbin 48 and the cradle arm 71 in Figs.
  • FIGS. 4A and 4B are illustrated opposite to each other in a left-right direction since Fig. 1 is a front view and Figs. 4A and 4B are back views.
  • Figs. 4A and 4B are views of the cradle arm 71 when seen from an opposite side (a back side of the fine spinning machine 1) of Fig. 1 .
  • Figs. 9 to 11 to be described later are also back views.
  • One of the bobbin holders (a movable holder) 72a is arranged to be capable of moving close to/away from the other of the bobbin holders (a fixed holder) 72b.
  • a position of the movable holder 72a is referred to as a "supporting position”.
  • the movable holder 72a is moved in a direction away from the fixed holder 72b from this state, the bobbin 48 supported by the bobbin holders 72a and 72b is released.
  • a position of the movable holder 72a at this time is referred to as a "releasing position" ( Fig. 4B ).
  • the cradle 70 of the present embodiment is capable of supporting a conical (tapered) bobbin 48.
  • the movable holder 72a supports an end portion on a small diameter side of the bobbin 48
  • the fixed holder 72b supports an end portion on a large diameter side of the bobbin 48.
  • the large diameter side of the bobbin 48 may be referred to as a "fixed holder side of the bobbin”
  • the small diameter side of the bobbin 48 may be referred to as a "movable holder side of the bobbin”.
  • a cradle lifter (a cancelling section), which is not illustrated, adapted to swing the cradle arm 71 around the support shaft 73 is connected to the cradle arm 71.
  • the bobbin 48 supported by the bobbin holders 72a and 72b can be moved to a position located away from the winding drum 74. Accordingly, contact between the bobbin 48 and the winding drum 74 can be cancelled.
  • the yarn accumulating device 12 is provided between the spinning device 9 and the winding section 13.
  • the yarn accumulating device 12 includes a yarn accumulating roller 21 adapted to rotate with a predetermined amount of the spun yarn 10 wound therearound.
  • the yarn accumulating roller 21 is rotationally driven at a constant rotational speed by an electric motor 25. By winding the spun yarn 10 around the yarn accumulating roller 21, the yarn accumulating device 12 can temporarily accumulate the spun yarn 10 between the yarn supplying section 11 and the winding section 13.
  • the yarn accumulating device 12 By temporarily accumulating the spun yarn 10 by the yarn accumulating roller 21, the yarn accumulating device 12 functions as a kind of buffer between the yarn supplying section 11 and the winding section 13. Accordingly, a defect (for example, a slackening of the spun yarn 10) in a case where a supplying speed of the spun yarn 10 from the yarn supplying section 11 and a winding speed of the spun yarn 10 in the winding section 13 do not correspond to each other for some reason can be prevented from occurring, and thus stable winding of the spun yarn 10 can be realized.
  • a defect for example, a slackening of the spun yarn
  • the yarn monitoring device 49 is provided between the spinning device 9 and the yarn accumulating device 12.
  • the spun yarn 10 produced by the spinning device 9 passes the yarn monitoring device 49 before being accumulated by the yarn accumulating device 12.
  • the yarn monitoring device 49 is adapted to monitor quality of the travelling spun yarn 10 and to transmit a yarn defect detection signal to the unit controller (not illustrated) when detecting some kind of abnormality.
  • the yarn joining vehicle 3 is adapted to be capable of travelling in the direction (the left-right direction of Fig. 1 ) in which the spinning units 2 are arranged. After a yarn breakage or a yarn cut has occurred in the spinning unit 2 for some reason, the yarn joining vehicle 3 joins disconnected yarn ends.
  • the yarn joining vehicle 3 includes a yarn joining device 43, yarn guiding sections 44 and 46, and traveling wheels 42. After a yarn breakage or a yarn cut has occurred in a certain spinning unit 2, the yarn joining vehicle 3 travels to such a spinning unit 2 by driving the traveling wheels 42. The yarn joining vehicle 3 then sucks and catches disconnected yarn ends and introduces the caught yarn ends to the yarn joining device 43 by the yarn guiding sections 44 and 46.
  • the yarn joining device 43 joins the introduced yarn ends together.
  • the yarn joining device 43 of the present embodiment is configured as a pneumatic splicer adapted to join the yarn ends by applying whirling airflow and twisting the yarn ends together.
  • the doffing vehicle 4 is capable of traveling in the direction (the left-right direction of Fig. 1 ) in which the spinning units 2 are arranged. As illustrated in Figs. 1 and 2 , the doffing vehicle 4 includes a bobbin setting device 60.
  • the bobbin setting device 60 is adapted to be capable of performing a bobbin setting operation of supplying the bobbin 48 to the cradle 70 and preparing for winding of the spun yarn 10, and a doffing operation of removing a fully-wound package 45 (the package 45 in a state where winding of a predetermined length of the spun yarn 10 has been completed) from the cradle 70. Travelling wheels 92 are mounted to a lower portion of the doffing vehicle 4.
  • the doffing vehicle 4 When receiving an instruction to perform the bobbin setting operation and/or the doffing operation to a certain spinning unit 2, the doffing vehicle 4 travels to such a spinning unit 2 by driving the travelling wheels 92. The doffing vehicle 4 then stops at the spinning unit 2, for which the instruction has been made, and performs the bobbin setting operation and/or the doffing operation.
  • the bobbin setting device 60 includes an arm member 51, a suction pipe (a yarn catching and guiding device) 88, and a cradle operating arm (an opening/closing mechanism) 89 as a configuration to perform the bobbin setting operation.
  • the suction pipe 88 is adapted to be capable of swinging and extending/contracting.
  • the suction pipe 88 catches the spun yarn 10 discharged from the spinning device 9 by sucking, and guides the caught spun yarn 10 to the winding section 13.
  • the cradle operating arm 89 is capable of moving the movable holder 72a in the direction to be close to the fixed holder 72b or the direction to be away from the fixed holder 72b by operating the cradle arm 71 of the spinning unit 2.
  • the movable holder 72a can be moved between the supporting position (a position illustrated in Fig. 4A ) and the releasing position (a position illustrated in Fig. 4B ) by the cradle operating arm 89.
  • the arm member 51 is adapted to be swingable with a swing shaft 111 as a center.
  • the bobbin setting device 60 includes an arm drive section 56 (an air pressure cylinder in the present embodiment) adapted to drive and swing the arm member 51.
  • the arm member 51 mainly includes the bobbin gripping section 52, a gripping section drive cylinder (a gripping-section drive source) 55, a bunch-winding roller 53, a bunch-winding motor 54, and a yarn guiding member 31.
  • the bobbin gripping section 52 is arranged in proximity to a tip-end portion (a tip-end region) of the arm member 51 and is capable of gripping the bobbin 48.
  • the bobbin gripping section 52 includes a fixed gripping section 113 and a movable gripping section 114.
  • the bobbin gripping section 52 grips the bobbin 48 by sandwiching the bobbin 48 in a radial direction with the fixed gripping section 113 and the movable gripping section 114.
  • the fixed gripping section 113 and the movable gripping section 114 are supported by a movable casing 65, which is to be described later.
  • the fixed gripping section 113 is fixedly provided to the movable casing 65.
  • the movable gripping section 114 is adapted to be movable in a direction to be close to the fixed gripping section 113 or a direction to be away from the fixed gripping section 113.
  • the bunch-winding roller 53 is provided in proximity to the bobbin gripping section 52.
  • the bunch-winding roller 53 rotationally drives the bobbin 48 when performing bunch winding to the bobbin 48.
  • the bunch-winding motor 54 which is a drive source of the bunch-winding roller 53, is arranged.
  • a driving force generated by the bunch-winding motor 54 is transmitted to the bunch-winding roller 53 by a transmission mechanism (for example, a belt and a pulley), which is not illustrated.
  • Bunch winding is to form a straight winding and fix the spun yarn 10 around the bobbin 48 when starting to wind the spun yarn 10 around a new bobbin 48. Operations of the bunch winding will be described later.
  • the bunch-winding roller 53 is provided to be movable in a direction to make contact with the bobbin 48 or a direction to be away from the bobbin 48.
  • the bobbin setting device 60 is adapted such that a movement of the bunch-winding roller 53 and an opening/closing operation of the bobbin gripping section 52 are mechanically in conjunction with each other.
  • the bunch-winding roller 53 In the gripping state, the bunch-winding roller 53 is arranged to recede to a position away from the bobbin 48.
  • the bunch-winding roller 53 In the released state, the bunch-winding roller 53 is arranged to advance to a position where the bunch-winding roller 53 can make contact with the bobbin 48.
  • the bunch-winding roller 53 recedes to the position away from the bobbin 48.
  • the bunch-winding roller 53 does not disturb gripping of the bobbin 48 by the bobbin gripping section 52.
  • the gripping of the bobbin 48 by the bobbin gripping section 52 is released. Accordingly, the bunch-winding roller 53 advances to the position where the bunch-winding roller 53 can make contact with the bobbin 48. Therefore, by rotationally driving the bunch-winding roller 53 in this state, the bobbin 48 being in contact with the bunch-winding roller 53 is rotated and the bunch winding can be performed to the bobbin 48.
  • the yarn guiding member 31 is arranged in proximity to the bobbin gripping section 52.
  • a yarn hooking groove 32 is formed on the yarn guiding member 31.
  • the yarn hooking groove 32 is formed in proximity to the end portion on the large diameter side of the bobbin 48 gripped by the bobbin gripping section 52.
  • the yarn hooking groove 32 guides the spun yarn 10 to the end portion on the large diameter side of the bobbin 48 when performing the bunch-winding.
  • the arm member 51 includes a sliding mechanism 63 adapted to enable the bobbin gripping section 52 (the fixed gripping section 113 and the movable gripping section 114) to slide.
  • the sliding mechanism 63 includes a fixed casing 64, the movable casing (a supporting member) 65, slide shafts 66, and an urging member 69.
  • the fixed casing 64 is fixed to a tip end of the arm member 51 in a relatively unmovable manner.
  • the movable casing 65 is configured as a member different from the fixed casing 64.
  • the movable casing 65 is relatively movable with respect to the fixed casing 64.
  • the slide shafts 66 are a round-bar-like member.
  • the slide shafts 66 are arranged in a direction parallel to the axis of the bobbin 48 gripped by the bobbin gripping section 52.
  • two slide shafts 66 are provided in the sliding mechanism 63 of the present embodiment.
  • the two slide shafts 66 are arranged parallel to each other.
  • the fixed casing 64 includes a first supporting wall 64a and a second supporting wall 64b that are plate-like and are arranged substantially orthogonal to a longitudinal direction of the slide shafts 66 (see Figs. 3 and 9 ).
  • the first supporting wall 64a and the second supporting wall 64b are arranged facing each other. Holes (not illustrated) through which the slide shafts 66 are inserted are formed through each of the first supporting wall 64a and the second supporting wall 64b.
  • the slide shafts 66 are inserted through the holes of the first supporting wall 64a and the second supporting wall 64b.
  • the slide shafts 66 are fixed to the movable casing 65. Accordingly, the movable casing 65 is supported with respect to the fixed casing 64 via the slide shafts 66. Since the slide shafts 66 are inserted through the holes of each of the first supporting wall 64a and the second supporting wall 64b, the movable casing 65 can be slid in the longitudinal direction of the slide shafts 66 (the direction parallel to the axis of the bobbin 48).
  • the bobbin setting device 60 includes two slide shafts 66 arranged parallel to each other.
  • the two slide shafts 66 thus function as rails to guide the slide of the movable casing 65, enabling the movable casing 65 to slide while maintaining a position of the movable casing 65. Accordingly, the movable casing 65 can be stably and smoothly slid.
  • the bobbin gripping section 52 (the fixed gripping section 113 and the movable gripping section 114) is supported by the movable casing 65.
  • the bobbin gripping section 52 is thus slidable integrally with the movable casing 65. Accordingly, the bobbin gripping section 52 can be slid with respect to the arm member 51 in the direction parallel to the axis of the bobbin 48.
  • the gripping-section drive cylinder 55 is also supported by the movable casing 65.
  • the gripping-section drive cylinder 55 thus slides integrally with the bobbin gripping section 52.
  • a positional relationship between the bobbin gripping section 52 and the gripping-section drive cylinder 55 is not changed by the slide. Accordingly, a transmission mechanism of a driving force from the gripping-section drive cylinder 55 to the bobbin gripping section 52 can be simplified.
  • the bunch-winding roller 53 and the bunch-winding motor 54 are fixedly provided to the arm member 51.
  • the bunch-winding roller 53 and the bunch-winding motor 54 do not slide with respect to the arm member 51.
  • the yarn guiding member 31 is also fixedly provided to the arm member 51. The yarn guiding member 31 does not slide with respect to the arm member 51.
  • the urging member 69 is a spring (a compression coil spring).
  • the urging member 69 is arranged to urge the bobbin gripping section 52 towards the small diameter side (a side of the movable holder 72a) of the bobbin 48 gripped by the bobbin gripping section 52. Accordingly, the bobbin gripping section 52 can be held at a position close to the small diameter side (the side of the movable holder 72a) of the bobbin 48 within a range of a stroke of the slide.
  • a position where the bobbin gripping section 52 is held by an urging force of the urging member 69 is referred to as a "standard position" of the bobbin gripping section 52.
  • the urging member 69 urges the bobbin gripping section 52 towards the standard position. Since the bobbin gripping section 52 can be held at the standard position with the above-described configuration, the bobbin gripping section 52 can be prevented from unintentionally sliding by a shock and/or a vibration. A state in which the bobbin gripping section 52 is being held at the standard position is illustrated in Figs. 3 and 9 .
  • the urging member 69 is arranged between the first supporting wall 64a of the fixed casing 64 and the movable casing 65.
  • One slide shaft 66 is inserted through an axial center of the urging member (spring) 69. Accordingly, the urging member 69 can be prevented from being removed, and the bobbin gripping section 52 (and the gripping-section drive cylinder 55) can be urged in the direction parallel to the slide shaft 66 (the axial direction of the bobbin 48).
  • the urging member 69 of the present embodiment is mounted to each of the two slide shafts 66 (see Fig. 3 ).
  • the unit controller of such a spinning unit 2 stops the spinning device 9, and swings the cradle arm 71 to a left side of Fig. 2 (a front side of the fine spinning machine 1) by controlling the cradle lifter of the winding section 13. Accordingly, the fully-wound package 45 is moved away from the winding drum 74, and thereby rotation of the package 45 is stopped.
  • the unit controller brings the doffing vehicle 4 to a position of the spinning unit 2.
  • the doffing vehicle 4 travels to a position to face the specified spinning unit 2.
  • the bobbin setting device 60 of the doffing vehicle 4 operates the cradle operating arm 89 and removes the fully-wound package 45 from the winding section 13 of the spinning unit 2.
  • a state at this time is illustrated in Fig. 5 .
  • the movable holder 72a of the cradle 70 is moved to the "releasing position" by the cradle operating arm 89. Accordingly, the fully-wound package 45 supported by the movable holder 72a and the fixed holder 72b is removed from the winding section 13.
  • the removed fully-wound package 45 is guided to a placing section 82 located below the spinning unit 2 (a state of Fig. 6 ).
  • the placing section 82 has a function as a conveyor.
  • the package 45 is transported by the conveyor in the direction in which the spinning units 2 are arranged, and is automatically gathered in one place.
  • the placing section 82 may be adapted not to have the conveyor function, and the packages 45 on the placing section 82 may be manually collected by a worker. As described above, the doffing operation (removal of the fully-wound package 45) is completed.
  • the bobbin setting device 60 While performing the above-described doffing operation, the bobbin setting device 60 extends the suction pipe 88 upward (see Fig. 5 ). Almost simultaneously, the unit controller of the spinning unit 2 starts driving the drafting device 7 and the spinning device 9. The suction pipe 88 sucks and catches a yarn end of the spun yarn 10 discharged from the spinning device 9 that has started driving. The bobbin setting device 60 moves the suction pipe 88 downward while the suction pipe 88 is sucking the spun yarn 10. A state at this time is illustrated in Fig. 6 .
  • the bobbin setting device 60 grips the bobbin 48 stocked in an upper portion of the doffing vehicle 4 by the bobbin gripping section 52. Then, by driving the arm drive section 56 and swinging the arm member 51, the bobbin setting device 60 causes the bobbin gripping section 52 that has gripped the bobbin 48 to advance to the winding section 13 of the spinning unit 2 ( Fig. 7 ). At this time, the yarn guiding member 31 of the arm member 51 makes contact with the spun yarn 10 being sucked and caught by the suction pipe 88. A state in which the spun yarn 10 makes contact with the yarn guiding member 31 is illustrated in Fig. 7 . The spun yarn 10 that has made contact with the yarn guiding member 31 is introduced to the yarn hooking groove 32.
  • the bobbin 48 can be supplied to a position between the bobbin holders 72a and 72b (states of Figs. 8 and 9 ). At this time, the arm member 51 is swung while maintaining a state in which the spun yarn 10 is introduced to the yarn hooking groove 32.
  • the bobbin gripping section 52 is urged towards the standard position by the urging member 69. Since a force opposing to the urging force of the urging member 69 is not acting in a state (a state of Fig. 9 ) immediately after the bobbin 48 has been supplied to the position between the bobbin holders 72a and 72b, the bobbin gripping section 52 is held at the standard position by the urging force. As illustrated in Fig. 9 , in this state, the yarn hooking groove 32 is located between the end portion on the large diameter side of the bobbin 48 and the fixed holder 72b when seen in the radial direction of the bobbin 48 gripped by the bobbin gripping section 52. The spun yarn 10 is thus guided by the yarn hooking groove 32 so as to pass between the end portion on the large diameter side of the bobbin 48 and the fixed holder 72b.
  • the bobbin setting device 60 moves the movable holder 72a in the direction to be close to the fixed holder 72b by driving the cradle operating arm 89. Accordingly, the movable holder 72a makes contact with the end portion on the small diameter side of the bobbin 48 gripped by the bobbin gripping section 52 and pushes the bobbin 48 towards the fixed holder 72b.
  • a force (a force other than the gripping force of the bobbin gripping section 52) of the movable holder 72a pushing the bobbin 48 is transmitted to the bobbin gripping section 52 via the bobbin 48.
  • the bobbin setting device 60 of the present embodiment includes the sliding mechanism 63 that enables the bobbin gripping section 52 to slide in the axial direction of the bobbin 48. Therefore, by the force of the movable holder 72a pushing the bobbin 48, the bobbin gripping section 52 that is gripping the bobbin 48 can be slid towards the fixed holder 72b.
  • the urging force of the urging member 69 is thus set to be smaller than the force of the movable holder 72a pushing the bobbin 48. Accordingly, the movable holder 72a pushes the bobbin 48 against the urging force of the urging member 69, and thereby the bobbin gripping section 52 gripping the bobbin 48 can be slid towards the fixed holder 72b.
  • the bobbin gripping section 52 can be slid with the bobbin 48 by the movable holder 72a pushing the bobbin 48, the movement of the movable holder 72a is not disturbed. Accordingly, the movable holder 72a can be moved to the supporting position.
  • the bobbin 48 under the state in which the bobbin 48 continues being gripped by the bobbin gripping section 52, the bobbin 48 can be fixed between the bobbin holders 72a and 72b. In this manner, since the bobbin 48 can be fixed (the bobbin setting operation can be performed) while maintaining the gripping by the bobbin gripping section 52, a position of the bobbin 48 is stable, and the bobbin 48 can be reliably fixed between the bobbin holders 72a and 72b. An error in setting the bobbin 48 thus can be reliably prevented.
  • the bobbin 48 when the bobbin setting operation is being performed by the bobbin setting device 60, the bobbin 48 is located away from the winding drum (the contact roller) 74. Therefore, in a conventional bobbin setting device, when fixing the bobbin 48 to the bobbin holders 72a and 72b, the position of the bobbin 48 is likely to be unstable. With the configuration of the present embodiment, since the bobbin 48 gripped by the bobbin gripping section 52 is fixed between the bobbin holders 72a and 72b, even when the bobbin 48 is located away from the winding drum 74, the position of the bobbin 48 does not become unstable. An error in setting the bobbin 48 thus can be reliably prevented.
  • the sliding mechanism 63 slides the bobbin gripping section 52 by the force of the bobbin 48 being pushed by the movable holder 72a.
  • the driving force for sliding the bobbin gripping section 52 is transmitted to the bobbin gripping section 52 via the bobbin 48. Therefore, a drive transmission mechanism for transmitting the driving force for sliding the bobbin gripping section 52 is not required.
  • the bobbin setting device 60 of the present embodiment thus does not include the drive transmission mechanism for transmitting the driving force for sliding the bobbin gripping section 52 to the bobbin gripping section 52. Accordingly, the bobbin setting device 60 can be simply configured.
  • the bobbin gripping section 52 is slid with the movement of the movable holder 72a. Therefore, an operation is not stopped for the movement of "sliding the bobbin gripping section 52". As a result, the setting operation of the bobbin 48 can be performed in a period of time equivalent to a period of time conventionally required.
  • the yarn guiding member 31 of the present embodiment is fixed to the arm member 51 and arranged not to slide, a positional relationship between the bobbin 48 and the yarn hooking groove 32 is changed before and after the slide.
  • the yarn hooking groove 32 is arranged at a position overlapping with a portion in proximity to the end portion on the large diameter side of the bobbin 48 when seen from the radial direction of the bobbin 48.
  • the spun yarn 10 is thus guided by the yarn hooking groove 32 to pass a position where the spun yarn 10 overlaps with the portion in proximity to the end portion on the large diameter side of the bobbin 48.
  • the bobbin setting device 60 releases the gripping of the bobbin 48 by the bobbin gripping section 52. Accordingly, since the bobbin 48 is released from the bobbin gripping section 52, the bobbin gripping section 52 slides to the standard position by the urging force of the urging member 69 ( Fig. 11 ). In this manner, after the bobbin gripping section 52 has released the bobbin 48, the bobbin gripping section 52 can be returned to the original standard position by the urging force of the urging member 69.
  • the bunch-winding roller 53 advances to a position where the bunch-winding roller 53 makes contact with the bobbin 48 fixed between the bobbin holders 72a and 72b (an illustration is omitted).
  • a cutter 33 provided to the bobbin setting device 60 cuts the spun yarn 10 at a position between the bobbin 48 and the suction pipe 88 ( Fig. 10 ). The spun yarn 10 that has been cut is sucked by the suction pipe 88.
  • the bobbin setting device 60 rotates the bobbin 48 by rotationally driving the bunch-winding roller 53 under a state in which the bunch-winding roller 53 is making contact with the bobbin 48. Accordingly, the spun yarn 10 that has been guided by the yarn hooking groove 32 is wound in proximity to the end portion on the large diameter side of the bobbin 48, and thereby bunch-winding is formed (a state of Fig. 11 ).
  • the arm drive section 56 is driven to cause a bobbin supplying section 50 to recede into the doffing vehicle 4.
  • the unit controller swings the cradle arm 71 by driving the cradle lifter and brings the bobbin 48 into contact with the winding drum 74. Accordingly, the bobbin 48 is rotationally driven and winding of the spun yarn 10 is started.
  • the bobbin setting device 60 of the present embodiment includes the bobbin gripping section 52 and the sliding mechanism 63.
  • the bobbin gripping section 52 grips the bobbin 48.
  • the sliding mechanism 63 enables the bobbin gripping section 52 to slide with the bobbin 48 gripped by the bobbin gripping section 52 in the axial direction of the bobbin 48 by the force (the force other than the gripping force of the bobbin gripping section 52) applied to the bobbin 48.
  • the bobbin gripping section 52 can be slid in the axial direction of the bobbin 48, the movement of the bobbin 48 is not disturbed. Accordingly, an error in setting the bobbin 48 can be prevented. Since the slide of the bobbin gripping section 52 is executed by the force applied to the bobbin 48 gripped by the bobbin gripping section 52, a drive source or the like for the slide is not required to be provided separately. Accordingly, the bobbin setting device 60 can be simply configured. Furthermore, since the bobbin gripping section 52 is slid by the force applied to the bobbin 48, a special movement for the slide is not required, and thus an extra time for the slide movement is not required. Time required for setting the bobbin 48 thus does not become long.
  • the bobbin setting device 60 of the present embodiment includes the bobbin gripping section 52 and the sliding mechanism 63.
  • the bobbin gripping section 52 grips the bobbin 48.
  • the sliding mechanism 63 enables the bobbin gripping section 52 to slide in the axial direction of the bobbin 48 gripped by the bobbin gripping section 52.
  • the bobbin setting device 60 is not provided with a structure for transmitting the driving force for the slide to the bobbin gripping section 52.
  • the bobbin gripping section 52 is slid by the force applied to the bobbin 48.
  • the driving force for the slide is transmitted to the bobbin gripping section 52 via the bobbin 48. Therefore, the structure for transmitting the driving force to the bobbin gripping section 52 is not required to be provided separately. Accordingly, the bobbin setting device 60 can be simply configured.
  • the sliding mechanism 63 of the present embodiment includes the movable casing 65 and the slide shaft 66.
  • the movable casing 65 supports the bobbin gripping section 52.
  • the slide shaft 66 is arranged in parallel with the axial direction of the bobbin 48 gripped by the bobbin gripping section 52, and slidably supports the movable casing 65. By providing the slide shaft 66, the bobbin gripping section 52 can be stably and smoothly slid.
  • the bobbin setting device 60 of the present embodiment further includes the gripping-section drive cylinder 55 that switches the bobbin gripping section 52 between the gripping state in which the bobbin gripping section 52 is gripping the bobbin 48 and the released state in which the bobbin gripping section 52 has released the bobbin 48.
  • the sliding mechanism 63 enables the gripping-section drive cylinder 55 to slide with the bobbin gripping section 52.
  • the bobbin setting device 60 of the present embodiment includes the urging member 69 that urges the bobbin gripping section 52 towards the standard position.
  • the urging force of the urging member 69 urges the bobbin gripping section 52 towards the standard position.
  • the bobbin gripping section 52 can be held at the standard position. Accordingly, the bobbin gripping section 52 can be prevented from unnecessarily sliding by a vibration and/or a shock, and the position of the bobbin 48 gripped by the bobbin gripping section 52 can be stabilized.
  • the urging member 69 is a spring.
  • the urging member 69 urges the bobbin gripping section 52 in a direction opposite to the direction of the force (the force of the movable holder 72a pushing the bobbin 48) applied to the bobbin 48 gripped by the bobbin gripping section 52.
  • the bobbin gripping section 52 that has released the gripping of the bobbin 48 can be returned to the standard position by the urging force of the urging member 69.
  • the bobbin setting device 60 of the present embodiment includes the arm member 51, the bobbin gripping section 52, the sliding mechanism 63, and the urging member 69.
  • the arm member 51 is swingable.
  • the bobbin gripping section 52 is arranged at the tip-end region of the arm member 51, and grips the bobbin 48.
  • the sliding mechanism 63 enables the bobbin gripping section 52 to slide with respect to the arm member 51 in the axial direction of the bobbin 48 gripped by the bobbin gripping section 52.
  • the urging member 69 urges the bobbin gripping section 52 towards the standard position.
  • the fine spinning machine 1 of the present embodiment includes the bobbin setting device 60, the yarn supplying section 11, and the bobbin holders 72a and 72b.
  • the yarn supplying section 11 supplies the spun yarn 10 to be wound around the bobbin 48.
  • the bobbin holder 72a is arranged movable between the supporting position where the bobbin holders 72a and 72b can support the bobbin 48 and the releasing position where the support is released.
  • the bobbin holder 72a is adapted to push the bobbin 48 gripped by the bobbin gripping section 52 in the axial direction when moving from the releasing position to the supporting position. By the force of the bobbin holder 71a pushing the bobbin 48, the bobbin gripping section 52 slides with the bobbin 48.
  • the movement of the bobbin holder 72a from the releasing position to the supporting position is not disturbed by the bobbin gripping section 52. Accordingly, the bobbin 48 can be appropriately supported by the bobbin holder 72a that has been moved to the supporting position.
  • the yarn supplying section 11 includes the drafting device 7 and the spinning device 9.
  • the drafting device 7 drafts the fiber bundle 8.
  • the spinning device 9 is the pneumatic spinning device that produces the spun yarn 10 by applying twists to the fiber bundle 8, which has been supplied from the drafting device 7, using the whirling airflow. Since the bobbin setting operation does not take time, the spun yarn 10 continuously spun from the spinning device 9 during the bobbin setting operation can be prevented from being wasted.
  • the fine spinning machine 1 of the present embodiment includes the winding drum 74 and the cradle lifter.
  • the winding drum 74 makes contact with the bobbin 48 when the spun yarn 10 is wound around the bobbin 48.
  • the cradle lifter cancels the contacting state of the bobbin 48 and the winding drum 74 when the bobbin setting device 60 sets the bobbin 48 to the bobbin holders 72a and 72b. Since the bobbin setting device 60 of the present embodiment includes the above-described configuration, the bobbin 48 can be reliably set even in an unstable situation in which the bobbin 48 is not in contact with the winding drum 74.
  • the configuration of the present invention is not limited to a fine spinning machine, and may be applied to a bobbin setting device of another kind of yarn winding machine (an automatic winder, for example).
  • the bobbin 48 gripped by the bobbin gripping section 52 is described as a conical bobbin.
  • the bobbin gripping section 52 may be capable of gripping a cheese (cylindrical) bobbin.
  • the configuration of the sliding mechanism 63 may be appropriately changed, and is not limited to the above-described configuration in which the fixed casing 64, the movable casing 65, and the two slide shafts 66 are provided.
  • the gripping-section drive cylinder 55 is slid with the bobbin gripping section 52.
  • the gripping-section drive cylinder (the gripping drive section) 55 may be arranged not to slide. In this case, since the positional relationship between the bobbin gripping section 52 and the gripping-section drive cylinder 55 is changed by the slide, a transmission mechanism of drive from the gripping-section drive cylinder 55 to the bobbin gripping section 52 is preferably further provided.
  • the bobbin gripping section 52 is formed of the fixed gripping section 113 and the movable gripping section 114, and the fixed gripping section 113 is fixedly provided to the movable casing 65.
  • a gripping section (the movable gripping section 114) movable with respect to the movable casing 65 is only one.
  • the configuration of the bobbin gripping section 52 is not limited thereto, and two movable gripping sections that are movable with respect to the movable casing 65 may be provided.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Winding Filamentary Materials (AREA)
EP14195454.5A 2014-02-05 2014-11-28 Spuleneinstellungsvorrichtung und Garnwickelmaschine Not-in-force EP2905249B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014020476A JP2015147633A (ja) 2014-02-05 2014-02-05 ボビンセット装置、及び糸巻取機

Publications (2)

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EP2905249A1 true EP2905249A1 (de) 2015-08-12
EP2905249B1 EP2905249B1 (de) 2017-11-01

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Cited By (1)

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EP3312116A1 (de) * 2016-10-19 2018-04-25 Murata Machinery, Ltd. Garnaufwicklungsvorrichtung und paketrotationsstoppverfahren

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CN108217334B (zh) * 2016-12-14 2019-04-19 宁波市东盛纺织有限公司 浆纱机
JP2019119539A (ja) * 2017-12-28 2019-07-22 村田機械株式会社 糸巻取機及びボビン供給方法
CN108360105A (zh) * 2018-04-27 2018-08-03 南通神马线业有限公司 一种多功能涤纶丝并线捻线一体机
CN109250583B (zh) * 2018-09-19 2020-08-14 绍兴韵足针纺织有限公司 一种铜钯银单晶键合引线全自动绕线机及使用方法
JP7052667B2 (ja) * 2018-10-04 2022-04-12 株式会社豊田自動織機 ポット精紡機における管替装置
CN110077902B (zh) * 2019-04-27 2021-02-02 台州威旗塑胶机械科技有限公司 一种自动上件的绕线机
CN111816339B (zh) * 2020-07-23 2022-02-18 中国核动力研究设计院 核反应堆探测器组件拆除用可升降暂存容器组件及方法

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CN104816981A (zh) 2015-08-05
CN104816981B (zh) 2019-04-12
EP2905249B1 (de) 2017-11-01

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