EP2712830B1 - Bras de va-et-vient et machine de renvideur de fil l'incluant - Google Patents

Bras de va-et-vient et machine de renvideur de fil l'incluant Download PDF

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Publication number
EP2712830B1
EP2712830B1 EP13185553.8A EP13185553A EP2712830B1 EP 2712830 B1 EP2712830 B1 EP 2712830B1 EP 13185553 A EP13185553 A EP 13185553A EP 2712830 B1 EP2712830 B1 EP 2712830B1
Authority
EP
European Patent Office
Prior art keywords
arm body
traverse
arm
protrusion
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.)
Not-in-force
Application number
EP13185553.8A
Other languages
German (de)
English (en)
Other versions
EP2712830A2 (fr
EP2712830A3 (fr
Inventor
Yasunobu Tanigawa
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
Original Assignee
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 EP2712830A2 publication Critical patent/EP2712830A2/fr
Publication of EP2712830A3 publication Critical patent/EP2712830A3/fr
Application granted granted Critical
Publication of EP2712830B1 publication Critical patent/EP2712830B1/fr
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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2827—Traversing devices with a pivotally mounted guide arm
    • 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 traverse arm for traversing a yarn in a yarn winding machine.
  • the yarn winding machine includes a traverse device for traversing a yarn to be wound around a winding bobbin.
  • a traverse device for traversing a yarn to be wound around a winding bobbin.
  • an arm-type traverse device including a traverse arm adapted to be driven and swung.
  • Such a traverse device is described in Japanese Unexamined Patent Application Publication No. 2011-195217 (Patent Document 1) and Japanese Unexamined Patent Application Publication No. 2010-137944 (Patent Document 2).
  • the traverse arm Since the traverse arm is driven and swung at a high speed, the traverse arm preferably has an utmost possible lightweight property. On the other hand, the traverse arm requires strength such that in a case where force from a caught yarn or the like is applied, the traverse arm is not broken or bent.
  • Patent Document 2 discloses a traverse arm having a truss structure in which a beam is sandwiched between two plates. According to Patent Document 2, employing the truss structure in the traverse arm allows reducing weight of the traverse arm and enhancing stiffness thereof.
  • CH 693 337 A5 describes an arm for a reciprocating yarn guide which has a mounting section, a yarn guide section with a yarn guide slit, and a connecting carrier section. A drilling at the mounting section receives the motor axis.
  • the connecting section may be U-shaped.
  • the object of the present invention is to provide a light traverse arm superior in strength property and manufacturable at low cost, and a yarn winding machine including same.
  • the traverse arm having the truss structure disclosed in Patent Document 2 has a complicated structure in which the two plates and the beam are pasted together. Therefore, there is a problem in which manufacturing cost is high, and manufacturing is difficult.
  • a traverse arm includes an arm body and a traverse guide arranged at a tip-end portion of the arm body in a longitudinal direction of the arm body, and is driven and swung about a swing-drive shaft arranged substantially perpendicular to the longitudinal direction of the arm body.
  • the arm body is made of a plate member, and at least a portion of the plate member is bent within a cross section perpendicular to the longitudinal direction to form a protrusion that protrudes in a same direction as the swing-drive shaft.
  • the protrusion is formed by the plate member being bent in a polygonal line at an obtuse angle.
  • the arm body is made of the plate member, a configuration of a thin arm body is possible, thereby allowing reduction in weight of the arm body.
  • Forming the protrusion in the arm body by bending the plate member within a plane perpendicular to the longitudinal direction ensures stiffness of the arm body in a simple configuration.
  • a press machine can be used, e.g., thereby allowing facilitation of manufacture.
  • the plate member is bent at an obtuse angle to form the protrusion. In comparison with a case of bending the plate member at a right angle, e.g., the plate member can be easily bent by the press machine or the like.
  • the protrusion of the arm body is formed such that a protrusion amount of the protrusion in the same direction as the swing-drive shaft is larger at a portion located away from the tip-end portion in the longitudinal direction than at the tip-end portion.
  • More stiffness is required in a portion of the traverse arm as the portion is located away from the tip-end portion.
  • the stiffness of the traverse arm is enhanced at the portion located away from the tip-end portion.
  • the traverse arm preferably includes a mounting member.
  • the mounting member is provided separately from the arm body, and the mounting member to be mounted to the swing-drive shaft is fixed to a base-end portion of the arm body in the longitudinal direction of the arm body.
  • the base-end portion of the traverse arm especially requires stiffness.
  • the stiffness at the base-end portion of the traverse arm can be ensured.
  • the arm body of the traverse arm includes at the base-end portion in the longitudinal direction, a flat-plate portion substantially perpendicular to the swing-drive shaft.
  • the mounting member is fixed to at least the flat-plate portion.
  • the mounting member can be stably fixed to the base-end portion of the arm body.
  • the mounting member is arranged over the flat-plate portion and the protrusion, and is fixed to each of the flat-plate portion and the protrusion.
  • the mounting member By arranging the mounting member over the protrusion and the flat-plate portion, the mounting member can be more stably fixed to the arm body.
  • a through hole is preferably formed through the arm body so as to receive a fixing member.
  • the mounting member is fixed to the arm body by the fixing member.
  • the arm body and the mounting body By mounting the fixing member to the mounting member via the through hole formed through the arm body, the arm body and the mounting body can be firmly fastened to each other.
  • the through hole for passing through the fixing member can be formed through the arm body by the press machine or the like.
  • a yarn winding machine includes a plurality of winding units.
  • Each of the winding units includes a traverse device adapted to traverse a yarn by the above-described traverse arm.
  • the yarn winding machine includes the traverse arm of the present invention, which is light, superior in stiffness property, and manufacturable at low cost, the yarn to be wound can be stably traversed, and in addition, costs can be reduced.
  • a package having high quality can be formed at low cost.
  • the automatic winder (yarn winding machine) 1 includes a plurality of winder units (winding units) 10 arranged next to each other.
  • each of the winder units 10 includes a yarn supplying section 11, a yarn unwinding assisting device 12, a tension applying device 13, a splicer device (yarn joining device) 14, a clearer (yarn defect detecting device) 15, and a winding section 16.
  • the winder unit 10 includes a unit control section 50 adapted to control an operation of each of the sections provided in the winder unit 10.
  • the yarn supplying section 11 holds in a predetermined position, the yarn supplying bobbin 21 adapted to supply a yarn 20.
  • the yarn unwinding assisting device 12 includes a regulating member 40 covering a core tube of the yarn supplying bobbin 21.
  • the regulating member 40 makes contact with a portion (balloon), which is swung around the yarn supplying bobbin 21 by centrifugal force, of the yarn 20 having been unwound from the yarn supplying bobbin 21.
  • the yarn unwinding assisting device 12 controls the balloon such that a size of the balloon is appropriate, and assists unwinding of the yarn 20 from the yarn supplying bobbin 21.
  • the tension applying device 13 applies a predetermined tension on the travelling yarn 20.
  • the tension applying device 13 may be, e.g., a gate type in which movable comb teeth are arranged with respect to fixed comb teeth. Since the yarn 20 bends and passes through between the engaged comb teeth, resistance is applied on the travelling yarn 20 and thereby allowing an appropriate tension to be applied on the yarn 20.
  • a disc type e.g., may be employed as the tension applying device 13.
  • the clearer 15 includes a sensor, which is not illustrated, for detecting an abnormal portion of the yarn 20 (yarn defect).
  • a cutter 39 for immediately cutting the yarn 20 when the clearer 15 detects the yarn defect.
  • the splicer device 14 joins a lower yarn from the yarn supplying bobbin 21 and an upper yarn from a winding bobbin 22 at the time of a yarn cutting performed after the clearer 15 detects the yarn defect, a yarn breakage during the unwinding from the yarn supplying bobbin 21, or the like.
  • a yarn joining device adapted to perform yarn joining of the upper yarn and the lower yarn in such a manner may be a mechanical type, a type of using fluid such as compressed air, or the like.
  • a lower yarn catching member 25 for catching a yarn end from the yarn supplying bobbin 21 and guiding the yarn end to the splicer device 14 is arranged in a part below the splicer device 14.
  • An upper yarn catching member 26 for catching a yarn end from the winding bobbin 22 and guiding the yarn end to the splicer device 14 is arranged in a part above the splicer device 14.
  • the winding section 16 includes a cradle 23 adapted to support the winding bobbin 22 for winding the yarn 20, and a contact roller 29 capable of rotating by being in contact with a peripheral surface of the winding bobbin 22.
  • the winding section 16 includes a rotary drive source, which is not illustrated, for driving and rotating the winding bobbin 22 supported by the cradle 23. By driving and rotating the winding bobbin 22, the yarn 20 can be wound around an outer periphery of the winding bobbin 22.
  • the winding bobbin 22 around which the yarn 20 is wound is referred to as a package 30.
  • the winder unit 10 includes an arm type traverse device 70 adapted to traverse the yarn 20 to be wound around the winding bobbin 22.
  • the traverse device 70 is arranged in proximity to the cradle 23. As illustrated in FIG. 3 , the traverse device 70 includes a traverse drive motor 76, a swing-drive shaft 77, and a traverse arm 74.
  • the traverse drive motor 76 is adapted to drive and swing the traverse arm 74 and is constituted of a servomotor or the like.
  • An output shaft of the traverse drive motor 76 is the swing-drive shaft 77.
  • the swing-drive shaft 77 is connected to a base-end portion of the traverse arm 74 in a longitudinal direction of the traverse arm 74.
  • the traverse arm 74 is fixed to the swing-drive shaft 77 in a relatively non-rotatable manner.
  • the longitudinal direction of the traverse arm 74 and the swing-drive shaft 77 are substantially perpendicular to each other.
  • a traverse guide 73 is formed at a tip-end portion of the traverse arm 74 (an end portion opposite to the base-end portion in the longitudinal direction).
  • the traverse guide 73 is formed into a shape by which the traverse guide 73 can be engaged with the yarn 20 to be wound around the winding bobbin 22 (a shape by which the traverse guide 73 can hook the yarn 20).
  • the traverse guide 73 reciprocates with respect to a direction of a winding width of the package 30 (a left-right direction in FIG. 2 , a perpendicular direction in the plane of FIG. 3 ).
  • a direction of a winding width of the package 30 a left-right direction in FIG. 2 , a perpendicular direction in the plane of FIG. 3 .
  • the traverse arm 74 of the present embodiment includes an arm body 71, a guide member 75, and a mounting member 72.
  • the arm body 71 is formed into an elongated shape.
  • a side where the swing-drive shaft 77 is mounted and a side opposite thereof (a side of the traverse guide 73) are respectively referred to as a "base-end” and a "tip-end".
  • the longitudinal direction of the arm body 71 may be simply referred to as a "longitudinal direction”.
  • a direction parallel to an axial line of the swing-drive shaft 77 is referred to as a "swing-drive shaft direction”.
  • the swing-drive shaft direction is perpendicular to the longitudinal direction of the arm body 71.
  • a direction perpendicular to the longitudinal direction and the swing-drive shaft direction (a left-right direction in FIG. 4B ) is referred to as a "traverse width direction”.
  • the arm body 71 is made of a processed plate member. Since the arm body 71 is made of the plate member, configuration of the thin arm body 71 is possible, thereby allowing reduction in weight of the arm body 71.
  • the arm body 71 of the present embodiment is made of a pressed aluminum plate. Since the arm body 71 is made of the aluminum plate, the configuration of the thin arm body 71 is possible and appropriate stiffness can be ensured. Since the arm body 71 is made by a press machine, the arm body 71 is easily produced in a large quantity.
  • the traverse guide 73 is formed at the tip-end portion of the arm body 71. As described above, the traverse guide 73 is formed into the shape by which the traverse guide 73 can be engaged with the yarn 20. The traverse guide 73 of the present embodiment is formed into a hook shape as illustrated in FIG. 4B .
  • the guide member 75 is arranged in a portion of the traverse guide 73 where the traverse guide 73 makes contact with the yarn 20 (in the present embodiment, an inner portion of the hook-shaped traverse guide 73).
  • the guide member 75 is made of a material superior in abrasion resistance such as ceramics, and is fixed to the arm body 71. The yarn 20 to be traversed by the traverse device 70 travels while making contact with the guide member 75.
  • the traverse arm 74 When the traverse arm 74 is driven and swung, a large amount of torque is applied between the traverse arm 74 and the swing-drive shaft 77. A portion of the traverse arm 74 to which the swing-drive shaft 77 is mounted thus requires adequate stiffness. Since the arm body 71 of the present embodiment is made of the aluminum plate, it is difficult to provide a base-end portion of the arm body 71 with stiffness that allows the swing-drive shaft 77 to be directly attached thereto.
  • the mounting member 72 for mounting the swing-drive shaft 77 is arranged at the base-end portion of the traverse arm 74 of the present embodiment.
  • a mounting hole 78 for mounting the swing-drive shaft 77 is formed in the mounting member 72.
  • a key groove 79 for preventing the traverse arm 74 from relatively rotating with respect to the swing-drive shaft 77 is formed in the mounting hole 78.
  • the mounting member 72 is provided separately from the arm body 71. Since the mounting member 72 is provided separately from the arm body 71, the mounting member 72 can be formed by a manufacturing method (e.g., using a cutting machine) other than using the press machine. The mounting member 72 thus can be formed into any shape that ensures adequate stiffness. In the present embodiment, the mounting member 72 is made of aluminum.
  • the hook-shaped traverse guide 73 is formed at the tip end of the arm body 71.
  • a flat-plate portion 80 for fixing the mounting member 72 is formed at the base end of the arm body 71.
  • a portion of the arm body 71 between the traverse guide 73 and the flat-plate portion 80 is referred to as an intermediate portion 85.
  • the traverse guide 73, the intermediate portion 85 and the flat-plate portion 80 are formed by processing one piece of aluminum plate by the press machine.
  • the traverse guide 73, the intermediate portion 85, and the flat-plate portion are formed as one body.
  • the flat-plate portion 80 is formed as a flat plate perpendicular to the swing-drive shaft 77. Since the flat-plate portion 80 is formed as the flat plate perpendicular to the swing-drive shaft 77, the mounting member 72 can be stably mounted to the flat-plate portion 80.
  • the arm body 71 is bent in a boundary portion between the traverse guide 73 and the intermediate portion 85 when viewed in the traverse width direction.
  • the arm body 71 is bent in such a manner for positioning the traverse guide 73 to be closer to an outer periphery of the contact roller 29 as illustrated in FIG. 3 .
  • the bending in the boundary portion between the traverse guide 73 and the intermediate portion 85 can be formed using the press machine.
  • a contour shape of the intermediate portion 85 of the arm body 71 is formed so as to become gradually thicker from the tip-end portion towards the base-end portion when viewed in the swing-drive shaft direction. This causes stiffness in a portion of the arm body 71 to be higher as the portion is located close to the base-end portion within a plane perpendicular to the swing-drive shaft 77 (within a plane illustrated in FIG. 5 ). Therefore, e.g., even if the yarn 20 is caught in the traverse guide 73 and thereby causes force on the traverse arm 74, the arm body 71 is not likely to change its shape within the plane perpendicular to the swing-drive shaft 77.
  • a protrusion 82 that protrudes towards one side in the swing-drive shaft direction within a cross section perpendicular to the longitudinal direction (within a cross section illustrated in FIG. 7 ) is formed in the intermediating portion 85 of the arm body 71 of the present embodiment.
  • a recess that recesses towards one side in the swing-drive shaft direction is formed. Since the protrusion and the recess are inextricably linked together, the relevant portion will be described as the protrusion 82 in the following description.
  • the protrusion 82 is formed by drawing or bending by the press machine. Forming the protrusion 82 in the arm body 71 allows enhancement in the stiffness of the arm body 71 within a plane including the swing-drive shaft direction and the longitudinal direction (within a plane illustrated in FIG. 6 ).
  • the protrusion 82 is formed such that a protrusion amount of the protrusion 82 gradually becomes larger from the tip-end portion towards the base-end portion. This causes the stiffness in a portion of the arm body 71 to be higher as the portion is located close to the base-end portion within the plane including the swing-drive shaft direction and the longitudinal direction (within the plane illustrated in FIG. 6 ).
  • the protrusion 82 of the arm body 71 is formed such that a protrusion amount of the protrusion 82 in the same direction as the swing-drive shaft 77 is larger at a portion of the arm body 71 (e.g. the base-end portion) located away from the tip-end portion in the longitudinal direction than at a portion of the arm body 71 located close to the tip-end portion in the longitudinal direction.
  • the arm body 71 is not likely to change its shape within the plane including the swing-drive shaft direction and the longitudinal direction (within the plane illustrated in FIG. 6 ).
  • the protrusion 82 is formed by bending the plate member (an aluminum plate in the present embodiment) of the arm body 71 within the cross section perpendicular to the longitudinal direction.
  • the protrusion 82 is formed by the aluminum plate being bent in a polygonal line within the cross section perpendicular to the longitudinal direction.
  • the protrusion 82 is formed by connecting planes to one another, each plane facing in a different direction.
  • the arm body 71 includes a front portion 83 and a side portion 84.
  • each of the front portion 83 and the side portion 84 is formed as a triangular plane of which the width widens from the tip-end portion towards the base-end portion.
  • the front portion 83 is formed such that a normal line of the front portion 83 is in the swing-drive shaft direction (that is, the front portion 83 faces in the swing-drive shaft direction) .
  • the side portion 84 is connected to each of both end portions of the front portion 83 in the traverse width direction. As illustrated in FIG. 7 , the side portion 84 is connected diagonally with respect to the front portion 83 within the cross section perpendicular to the longitudinal direction. Therefore, a normal line of the side portion 84 faces in a direction diagonal with respect to the swing-drive shaft direction.
  • the front portion 83 and the side portion 84 are connected to each other at an obtuse angle within the cross section perpendicular to the longitudinal direction.
  • the aluminum plate of the arm body 71 is bent at an obtuse angle within the cross section. Since an angle at which the aluminum plate is bent is obtuse, the protrusion 82 is easily formed by bending the aluminum plate by the press machine.
  • the arm body 71 of the present embodiment includes a planar bottom portion 86 for connecting a side of the front portion 83 on a base-end portion side to the flat-plate portion 80.
  • the bottom portion 86 is formed into a trapezoidal shape and is connected to each side of the front portion 83 and the side portion 84 on the base-end portion side.
  • the flat-plate portion 80 and the front portion 83 are arranged substantially parallel to each other.
  • a step 87 is formed between the front portion 83 and the flat-plate portion 80 in the swing-drive shaft direction.
  • a structure for mounting the mounting member 72 to the arm body 71 will be described in detail.
  • a through hole 81 for inserting a screw is formed through the flat-plate portion 80.
  • the mounting member 72 can be fixed to the flat-plate portion 80.
  • a forming method of the through hole 81 is not particularly limited.
  • the through hole 81 is formed by punching out the plate member using the press machine. This allows simultaneous formation of the through hole 81 when forming the arm body 71 by the press machine.
  • two through holes 81 are formed side by side in the traverse width direction.
  • screws are threaded into each of the two through holes 81 and are screwed into the mounting member 72.
  • the mounting member 72 By screwing the mounting member 72 via a plurality of the through holes formed through the arm body 71, the mounting member 72 can be stably fixed to the arm body 71.
  • a trough hole 88 is also formed at the base end of the protrusion 82 (specifically, at a base end of the front portion 83).
  • the mounting member 72 is arranged over the protrusion 82 and the flat-plate portion 80.
  • a screw is threaded into the through hole 88 formed through the protrusion 82 and is screwed into the mounting member 72. Accordingly, since the mounting member 72 can be fixed to both of the protrusion 82 and the flat-plate portion 80, the mounting member 72 can be stably fixed to the arm body 71.
  • the through hole 88 formed through the protrusion 82 and the two through holes 81 formed through the flat-plate portion 80 constitute vertices of a triangle when viewed in the swing-drive shaft direction.
  • the mounting member 72 of the present embodiment is screwed to the arm body 71 at three points when viewed in the swing-drive shaft direction. Accordingly, the mounting member 72 can be more stably fixed to the arm body 71 within the plane perpendicular to the swing-drive shaft direction (within the plane illustrated in FIG. 5 ).
  • the traverse arm 74 of the present embodiment includes the arm body 71 and the traverse guide 73 arranged at the tip-end portion of the arm body 71 in the longitudinal direction, and is driven and swung about the swing-drive shaft 77 arranged substantially perpendicular to the longitudinal direction of the arm body 71.
  • the arm body 71 is made of the plate member, and a portion of the plate member is bent within the cross section perpendicular to the longitudinal direction (within the cross section illustrated in FIG. 7 ) to form the protrusion 82 that protrudes in the swing-drive shaft direction.
  • the arm body 71 is made of the plate member, the configuration of the thin arm body 71 is possible, thereby allowing reduction in the weight of arm body 71.
  • Forming the protrusion 82 in the arm body 71 by bending the plate member within the plane perpendicular to the longitudinal direction ensures the stiffness of the arm body 71 in a simple configuration.
  • a press machine or the like can be used for bending the plate member, thereby allowing facilitation of manufacture.
  • the protrusion 82 of the arm body 71 is formed such that the protrusion amount of the protrusion 82 is larger at a portion located away from the tip-end portion in the longitudinal direction than at the tip-end portion.
  • the stiffness of the traverse arm 74 can be gradually enhanced in a direction away from the tip-end portion.
  • the aluminum plate of the arm body 71 is bent in a polygonal line at an obtuse angle within the plane perpendicular to the longitudinal direction.
  • the aluminum plate is bent at an obtuse angle to form the protrusion 82.
  • the plate member can be easily bent by the press machine or the like.
  • the traverse arm 74 of the present embodiment includes the mounting member 72.
  • the mounting member 72 is provided separately from the arm body 71, and is mounted to the swing-drive shaft 77.
  • the mounting member 72 is fixed to the base-end portion of the arm body 71 in the longitudinal direction.
  • the base-end portion of the traverse arm 74 especially requires stiffness.
  • the arm body 71 includes at the base-end portion in the longitudinal direction, the flat-plate portion 80 substantially perpendicular to the swing-drive shaft 77.
  • the mounting member 72 is fixed to the flat-plate portion 80.
  • the mounting member 72 can be stably fixed to the base-end portion of the arm body 71.
  • the mounting member 72 is arranged over the flat-plate portion 80 and the protrusion 82, and is fixed to each of the flat-plate portion 80 and the protrusion 82.
  • the mounting member 72 By arranging the mounting member 72 over the protrusion 82 and the flat-plate portion 80, the mounting member 72 can be more stably fixed to the arm body 71.
  • the through holes 81 and 88 are formed through the arm body 71 so as to pass through screws.
  • the mounting member 72 is fixed to the arm body 71 by fastening the screws via the through holes 81 and 88.
  • the arm body 71 and the mounting member 72 can be firmly fastened to each other.
  • the through holes 81 and 88 for passing through the screws can be formed through the arm body 71 by the press machine or the like.
  • the automatic winder 1 of the present embodiment includes the plurality of winder units 10.
  • Each of the winder units 10 includes the traverse device 70 adapted to traverse the yarn 20 by the traverse arm 74.
  • the automatic winder 1 includes the light traverse arm 74 superior in stiffness property and manufacturable at low cost, the yarn 20 to be wound can be stably traversed, and in addition, costs can be reduced.
  • the package 30 having high quality can be formed at low cost.
  • the arm body 71 is formed by pressing an aluminum plate, without limited thereto, the arm body 71 may be made of an appropriate metal plate. As a material for the arm body 71, a light material having adequate stiffness property is preferable.
  • the material for the arm body 71 is not limited to a metal plate, and the arm body 71 may be formed by appropriately bending another plate member.
  • An arm body of which shape is equivalent to the arm body 71 of the above-described embodiment can be formed with a material such as a CFRP (Carbon Fiber Reinforced Plastics) plate.
  • a hole for reducing weight may be appropriately formed through the arm body 71.
  • the arm body 71 is bent in a polygonal line within the plane perpendicular to the longitudinal direction to form the protrusion 82.
  • the protrusion 82 has a polyhedral shape.
  • the protrusion 82 may be formed by, e.g., bending the arm body 71 in a curved line within the plane perpendicular to the longitudinal direction. In this case, the protrusion 82 is curved. The point is that the protrusion 82 (or the recess) merely requires to be formed by bending the arm body 71 within the plane perpendicular to the longitudinal direction, and its shape is not particularly limited.
  • At least one protrusion is required to be formed in the arm body 71, and a plurality of the protrusions may be formed.
  • the material of the mounting member 72 is aluminum.
  • the material of the mounting member 72 is not limited to the aluminum, and is merely required to have a certain degree of stiffness.
  • the material of the mounting member 72 and the material of the arm body 71 may be different.
  • the structure for mounting the mounting member 72 to the arm body 71 is not limited to the above-described structure, and an appropriate structure may be employed.
  • the mounting member 72 may be omitted and the arm body 71 may be directly mounted to the swing-drive shaft 77.
  • the fixing member for fixing the mounting member 72 to the arm body 71 is not limited to a screw, and may be, e.g., a caulking pin.

Landscapes

  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)

Claims (8)

  1. Bras de va-et-vient comprenant:
    un corps de bras (71); et
    un guide de va-et-vient (73) disposé dans une partie d'extrémité de pointe du corps de bras (71) dans une direction longitudinale du corps de bras (71),
    le bras de va-et-vient étant adapté pour être entraîné et pivoté autour d'un arbre d'entraînement en pivotement (77) disposé sensiblement perpendiculairement à la direction longitudinale du corps de bras (71),
    dans lequel le corps de bras (71) est constitué d'un élément de plaque, et au moins une partie de l'élément de plaque est pliée dans une section perpendiculaire à la direction longitudinale pour former une protubérance (82) qui fait saillie dans la même direction que l'arbre d'entraînement en pivotement (77),
    caractérisé par le fait que
    la protubérance (82) est formée par l'élément de plaque plié en une ligne polygonale selon un angle obtus ou en une ligne courbe.
  2. Bras de va-et-vient selon la revendication 1, dans lequel la protubérance (82) du corps de bras (71) est formée de sorte qu'une quantité de saillie de la protubérance (82) dans la même direction que l'arbre d'entraînement en pivotement (77) est plus grande dans une partie du corps de bras (71) située éloignée de la partie d'extrémité de pointe dans la direction longitudinale que dans une partie du corps de bras (71) située à proximité de la partie d'extrémité de pointe dans la direction longitudinale.
  3. Bras de va-et-vient selon la revendication 1 ou la revendication 2, comprenant par ailleurs un élément de montage (72) prévu séparément du corps de bras (71) et adapté de manière à être monté sur l'arbre d'entraînement en pivotement (77),
    dans lequel l'élément de montage (72) est fixé à une partie d'extrémité de base du corps de bras (71) dans la direction longitudinale du corps de bras (71).
  4. Bras de va-et-vient selon la revendication 3, dans lequel le corps de bras (71) comporte une partie de plaque plate plane (80) dans la partie d'extrémité de base dans la direction longitudinale, la partie de plaque plane (80) étant sensiblement perpendiculaire à l'arbre d'entraînement en pivotement (77), et
    l'élément de montage (72) est fixé à au moins la partie de plaque plane (80).
  5. Bras de va-et-vient selon la revendication 4, dans lequel l'élément de montage (72) est disposé sur la partie de plaque plane (80) et sur la protubérance (82), et est fixé à chacune de la partie plate (80) et de la protubérance (82).
  6. Bras de va-et-vient selon la revendication 4 ou la revendication 5, dans lequel un trou traversant (81) est formé à travers le corps du bras (71), le trou traversant (81) étant adapté pour recevoir un élément de fixation, et
    l'élément de montage (72) est fixé au corps de bras (71) par l'élément de fixation.
  7. Bras de va-et-vient selon l'une quelconque de la revendication 1 à la revendication 6, dans lequel le corps de bras (71) est une plaque métallique pressée.
  8. Machine de renvideur de fil comprenant une pluralité d'unités d'enroulement (10), chaque unité d'enroulement (10) comportant un dispositif de va-et-vient (70) comportant un bras de va-et-vient (74) selon l'une quelconque de la revendication 1 à la revendication 7.
EP13185553.8A 2012-09-28 2013-09-23 Bras de va-et-vient et machine de renvideur de fil l'incluant Not-in-force EP2712830B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012217672A JP2014069931A (ja) 2012-09-28 2012-09-28 トラバースアーム、及びこれを備えた糸巻取機

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EP2712830A2 EP2712830A2 (fr) 2014-04-02
EP2712830A3 EP2712830A3 (fr) 2015-02-18
EP2712830B1 true EP2712830B1 (fr) 2017-07-26

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EP13185553.8A Not-in-force EP2712830B1 (fr) 2012-09-28 2013-09-23 Bras de va-et-vient et machine de renvideur de fil l'incluant

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EP (1) EP2712830B1 (fr)
JP (1) JP2014069931A (fr)
CN (2) CN203624700U (fr)

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JP2014069931A (ja) * 2012-09-28 2014-04-21 Murata Mach Ltd トラバースアーム、及びこれを備えた糸巻取機
JP2016037354A (ja) * 2014-08-07 2016-03-22 村田機械株式会社 トラバースアーム及び糸巻取機
CN105565070B (zh) * 2014-10-14 2020-01-03 舍弗勒技术股份两合公司 导纱器和纱线卷绕机
JP2017065898A (ja) * 2015-09-30 2017-04-06 村田機械株式会社 糸掛け部材、糸貯留装置、及び糸巻取機
DE102016009062A1 (de) * 2016-07-26 2018-02-01 Saurer Germany Gmbh & Co. Kg Fadenchangiereinrichtung umfassend einen elektromotorischen Antrieb und einen Fingerfadenführer
CN109081175A (zh) * 2018-09-04 2018-12-25 青岛宏大纺织机械有限责任公司 一种摆杆导纱的自动络筒机及其控制方法
JP7493391B2 (ja) * 2020-06-16 2024-05-31 三菱電機株式会社 照明器具
CN112520501A (zh) * 2021-02-03 2021-03-19 苏州天沐乐纺织有限公司 一种纱架上的延伸臂

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CH693337A5 (de) * 1999-06-16 2003-06-13 Rieter Ag Maschf Fadenchangierarm.
ITMI20021175A1 (it) * 2002-05-30 2003-12-01 Gianpaolo Sarzilla Liccio o maglia per telai di tessitura e relativo quadro porta licci ad elevata semplicita' strutturale e a ridotta rumorosita' di funzionam
ITMI20061122A1 (it) * 2006-06-09 2007-12-10 Colombo Filippetti Spa Procedimento per la movimentazione di un elemento guida-filo nelle macchine roccatrici e relativo dispositivo d'azionamento
DE102008053261A1 (de) * 2008-10-25 2010-04-29 Oerlikon Textile Gmbh & Co. Kg Fadenführer
JP5229565B2 (ja) 2008-12-10 2013-07-03 村田機械株式会社 トラバースアーム及びこのトラバースアームを備える糸巻取機
JP5545593B2 (ja) 2010-03-17 2014-07-09 村田機械株式会社 糸巻取機
EP2479129B1 (fr) * 2011-01-25 2016-08-10 Murata Machinery, Ltd. Machine de renvidage de fil
JP2012153476A (ja) * 2011-01-25 2012-08-16 Murata Machinery Ltd 糸巻取装置
JP2014069931A (ja) * 2012-09-28 2014-04-21 Murata Mach Ltd トラバースアーム、及びこれを備えた糸巻取機

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Also Published As

Publication number Publication date
CN103708283A (zh) 2014-04-09
CN203624700U (zh) 2014-06-04
JP2014069931A (ja) 2014-04-21
CN103708283B (zh) 2018-05-22
EP2712830A2 (fr) 2014-04-02
EP2712830A3 (fr) 2015-02-18

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