JP2009173419A - Slack eliminating device - Google Patents

Slack eliminating device Download PDF

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Publication number
JP2009173419A
JP2009173419A JP2008015539A JP2008015539A JP2009173419A JP 2009173419 A JP2009173419 A JP 2009173419A JP 2008015539 A JP2008015539 A JP 2008015539A JP 2008015539 A JP2008015539 A JP 2008015539A JP 2009173419 A JP2009173419 A JP 2009173419A
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Prior art keywords
yarn
slack eliminating
hooking member
roller
eliminating roller
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JP2008015539A
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Japanese (ja)
Inventor
Kenji Baba
健治 馬場
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Murata Machinery Ltd
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Murata Machinery Ltd
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Priority to JP2008015539A priority Critical patent/JP2009173419A/en
Priority to EP08020755.8A priority patent/EP2083103B1/en
Priority to CN2009100020254A priority patent/CN101492136B/en
Publication of JP2009173419A publication Critical patent/JP2009173419A/en
Pending legal-status Critical Current

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    • 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
    • D01H13/10—Tension devices
    • D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slack eliminating device which improves a life of a yarn hooking member with respect to wearing away caused by traveling of a yarn by changing a position at which a yarn unwound and traveling from a slack eliminating roller makes contact with a yarn hooking member. <P>SOLUTION: An outer peripheral edge 70 at a tip side end, which is a downstream end of a slack eliminating roller 39 is formed into an oval shape seen from an axial direction of the slack eliminating roller 39. A solid line shows when a yarn hooking member 52 is positioned at a long-diameter portion, and a two-dotted line shows when it is positioned at a short-diameter portion. When the yarn hooking member 52 relatively rotates with respect to the slack eliminating roller 39, a position where the yarn hooking member 52 contacts a yarn 34 unwound varies across a width D. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は糸弛み取り装置に関し、特に紡績機における糸弛み取り装置に関するものである。   The present invention relates to a yarn slack eliminating device, and more particularly to a yarn slack eliminating device in a spinning machine.

紡績装置により糸を紡績し、その紡績された糸を巻取り装置により巻き取ってパッケージを製造する紡績機がある。この紡績機は、紡績装置により紡績された糸が巻取り装置により巻き取られる前に、糸の巻取り張力を調整する糸弛み取り装置を備えている。この糸弛み取り装置は、回転駆動されると共に外周面に糸を巻き付かせて貯溜する弛み取りローラと、前記弛み取りローラの回転軸心に同心で相対回転可能に取り付けられ、弛み取りローラから解舒されて走行する糸に接触しながら、糸を前記下流側ガイドへ案内する糸掛け部材と、弛み取りローラより下流側に配置され、糸を巻取り装置へ案内する下流側ガイドとを備えている（例えば、特許文献１参照）。弛み取りローラの外周面は、中央部がほぼ同一径からなる同心円により形成され、両端部が端部へ行くほど大径となる同心円によりテーパ状に形成されている。糸掛け部材は、弛み取りローラに貯溜した糸を解舒するときに、糸の輪抜けを防止して弛み取りローラから糸が平均的に巻き出されるように案内すると共に、糸と接触することにより適度の抵抗を付与して糸の巻取り張力を適正化する。
特開２００６−３０６５８８号公報 There is a spinning machine in which a yarn is spun by a spinning device, and the spun yarn is wound by a winding device to manufacture a package. This spinning machine includes a yarn slack eliminating device that adjusts the winding tension of the yarn before the yarn spun by the spinning device is wound by the winding device. This yarn slack eliminating device is rotationally driven and a slack eliminating roller that winds and stores a thread around an outer peripheral surface, and is attached concentrically and relatively rotatably to the rotation axis of the slack eliminating roller. A yarn hooking member that guides the yarn to the downstream guide while being in contact with the unwinded yarn and a downstream guide that is arranged downstream of the slack eliminating roller and guides the yarn to the winding device. (For example, refer to Patent Document 1). The outer peripheral surface of the slack eliminating roller is formed of a concentric circle having a central portion having substantially the same diameter, and is tapered by a concentric circle having a larger diameter toward both ends. When unwinding the yarn stored in the slack eliminating roller, the yarn hooking member guides the yarn to be unwound from the slack eliminating roller and prevents it from coming out of the yarn, and comes into contact with the yarn. To give a proper resistance to optimize the winding tension of the yarn.
JP 2006-306588 A

上記のような従来の糸弛み取り装置では、弛み取りローラの回転軸心と糸掛け部材の回転軸心が一致し、弛み取りローラの下流側端部の外周縁が円形であるため、弛み取りローラから解舒されて走行する糸が糸掛け部材に接触する位置は一定である。これは、糸掛け部材が弛み取りローラに対して相対的に回転しても一定である。そのため、糸の接触走行により糸掛け部材の一定の部分だけが摩耗し、糸掛け部材が折れる等の不具合が起こり、糸掛け部材の寿命を短くさせているおそれがある。更には、糸掛け部材の交換のために、紡績機を停止させる必要があり、パッケージの生産性にも影響しうる。   In the conventional yarn slack eliminating device as described above, the rotation axis of the slack eliminating roller and the rotation axis of the yarn hooking member coincide with each other, and the outer peripheral edge of the downstream end of the slack eliminating roller is circular. The position where the yarn unwinding from the roller and traveling is in contact with the yarn hooking member is constant. This is constant even if the yarn hooking member rotates relative to the slack eliminating roller. For this reason, only a certain portion of the yarn hooking member is worn by the contact running of the yarn, and there is a possibility that the yarn hooking member is broken and the life of the yarn hooking member is shortened. Furthermore, it is necessary to stop the spinning machine for replacing the yarn hooking member, which may affect the productivity of the package.

この発明は、上記のような課題を解決するためになされたもので、弛み取りローラから解舒されて走行する糸が糸掛け部材に接触する位置を変化させ、糸の走行に対する摩耗に対して糸掛け部材の寿命を向上させた糸弛み取り装置を提供することを目的とする。   The present invention has been made to solve the above-described problems, and changes the position where the yarn that travels after being unwound from the slack eliminating roller contacts the yarn hooking member, so that the wear against the running of the yarn is reduced. An object of the present invention is to provide a yarn slack eliminating device with an improved life span of a yarn hooking member.

上記の目的を達成するために、第１の発明は、紡績装置により紡績された糸が巻取り装置により巻き取られる前に、糸の巻取り張力を調整する糸弛み取り装置であって、回転駆動され、糸が外周面に巻き付けられる弛み取りローラと、弛み取りローラより上流側に配置され、糸を弛み取りローラへ案内する上流側ガイドと、弛み取りローラより下流側に配置され、糸を前記巻取り装置へ案内する下流側ガイドと、弛み取りローラに相対回転可能に取り付けられ、弛み取りローラから解舒されて走行する糸に接触しながら、糸を下流側ガイドへ案内する糸掛け部材と、糸掛け部材と糸とが接触する位置を変更させる接触位置変更手段とを備えたものである。   In order to achieve the above object, a first invention is a yarn slack eliminating device that adjusts the winding tension of a yarn before the yarn spun by the spinning device is wound by the winding device. The slack eliminating roller that is driven and the yarn is wound around the outer circumferential surface, the upstream guide that guides the yarn to the slack eliminating roller, the downstream guide that is arranged downstream from the slack eliminating roller, and the yarn A downstream guide for guiding to the winding device, and a yarn hooking member which is attached to the slack eliminating roller so as to be relatively rotatable, and guides the yarn to the downstream guide while being in contact with the traveling yarn unwound from the slack eliminating roller. And contact position changing means for changing the position where the yarn hooking member and the yarn come into contact with each other.

このように構成すると、糸掛け部材と糸とが接触する位置が一定でなくなり所定の幅をもって変化する。   If comprised in this way, the position which a thread | yarn hanging member and a thread | yarn contact will become fixed, and will change with a predetermined | prescribed width | variety.

第２の発明は、第１の発明の構成において、接触位置変更手段は、弛み取りローラの下流側端部の外周縁が、弛み取りローラの軸方向からみて、糸掛け部材の回転軸心の任意点から外周縁の一点までの距離と、任意点から外周縁の他の一点までの距離とが相違するように形成されたものである。   According to a second aspect of the present invention, in the configuration of the first aspect, the contact position changing means is configured such that the outer peripheral edge of the downstream end of the slack eliminating roller has an axis of rotation of the yarn hooking member as viewed from the axial direction of the slack eliminating roller. The distance from the arbitrary point to one point on the outer peripheral edge is different from the distance from the arbitrary point to another point on the outer peripheral edge.

このように構成すると、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの軸方向からみた、弛み取りローラの外周縁と糸掛け部材との交点が変化する。   With this configuration, when the yarn hooking member rotates relative to the slack eliminating roller, the intersection between the outer peripheral edge of the slack eliminating roller and the yarn hooking member as viewed from the axial direction of the slack eliminating roller changes.

第３の発明は、第１の発明の構成において、接触位置変更手段は、弛み取りローラの回転軸心と糸掛け部材の回転軸心とが一致するように設定され、弛み取りローラの下流側端部の外周縁が、弛み取りローラの軸方向からみて楕円形状となるように形成されたものである。   According to a third aspect of the present invention, in the configuration of the first aspect of the invention, the contact position changing means is set so that the rotation axis of the slack eliminating roller and the rotation axis of the yarn hooking member coincide with each other, and downstream of the slack eliminating roller. The outer peripheral edge of the end portion is formed to have an elliptical shape when viewed from the axial direction of the slack eliminating roller.

このように構成すると、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの軸方向からみた、弛み取りローラの外周縁と糸掛け部材との交点が変化する。   With this configuration, when the yarn hooking member rotates relative to the slack eliminating roller, the intersection between the outer peripheral edge of the slack eliminating roller and the yarn hooking member as viewed from the axial direction of the slack eliminating roller changes.

第４の発明は、第１の発明の構成において、接触位置変更手段は、弛み取りローラの回転軸心と糸掛け部材の回転軸心とを平行になるように所定の範囲でずらしたものである。   According to a fourth aspect of the present invention, in the configuration of the first aspect, the contact position changing means is configured to shift the rotational axis of the slack eliminating roller and the rotational axis of the yarn hooking member within a predetermined range so as to be parallel. is there.

このように構成すると、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの軸方向からみた、弛み取りローラの外周縁と糸掛け部材との交点が変化する。   With this configuration, when the yarn hooking member rotates relative to the slack eliminating roller, the intersection between the outer peripheral edge of the slack eliminating roller and the yarn hooking member as viewed from the axial direction of the slack eliminating roller changes.

第５の発明は、第１の発明の構成において、接触位置変更手段は、糸掛け部材の回転軸心を弛み取りローラの回転軸心に対して所定の範囲で傾斜させたものである。   According to a fifth aspect of the invention, in the configuration of the first aspect of the invention, the contact position changing means inclines the rotational axis of the yarn hooking member within a predetermined range with respect to the rotational axis of the slack eliminating roller.

このように構成すると、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの外周縁と糸掛け部材の任意の点との距離が変化する。   With this configuration, when the yarn hooking member rotates relative to the slack eliminating roller, the distance between the outer peripheral edge of the slack removing roller and an arbitrary point on the yarn hooking member changes.

以上説明したように、第１の発明は、糸掛け部材と糸とが接触する位置が一定でなくなり所定の幅をもって変化するため、糸の走行による摩耗に対して局所的に摩耗が進行することがなく糸掛け部材の寿命を向上させることができる。   As described above, according to the first aspect of the present invention, the position where the yarn hooking member and the yarn are in contact with each other is not constant and changes with a predetermined width. The life of the yarn hooking member can be improved.

第２の発明は、第１の発明の効果に加えて、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの軸方向からみた、弛み取りローラの外周縁と糸掛け部材との交点が変化するため、弛み取りローラの回転軸心と糸掛け部材の回転軸心との位置関係に関わらず、糸掛け部材と糸とが接触する位置を変化させることができる。   In the second invention, in addition to the effect of the first invention, when the yarn hooking member rotates relative to the slack eliminating roller, the outer peripheral edge of the slack eliminating roller and the yarn hooking member as viewed from the axial direction of the slack eliminating roller. Therefore, regardless of the positional relationship between the rotational axis of the slack eliminating roller and the rotational axis of the yarn hooking member, the position where the yarn hooking member and the yarn contact can be changed.

第３の発明は、第１の発明の効果に加えて、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの軸方向からみた、弛み取りローラの外周縁と糸掛け部材との交点が変化するため、弛み取りローラの回転軸心と糸掛け部材の回転軸心とを一致させた状態で、糸掛け部材と糸とが接触する位置を変化させることができる。   In addition to the effects of the first invention, the third invention is characterized in that when the yarn hooking member rotates relative to the slack eliminating roller, the outer peripheral edge of the slack eliminating roller and the yarn hooking member as viewed from the axial direction of the slack eliminating roller. Therefore, the position where the yarn hooking member and the yarn come into contact with each other can be changed in a state in which the rotation axis of the slack eliminating roller and the rotation axis of the yarn hooking member are aligned with each other.

第４の発明は、第１の発明の効果に加えて、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの軸方向からみた、弛み取りローラの外周縁と糸掛け部材との交点が変化するため、弛み取りローラの回転軸心と糸掛け部材の回転軸心とをずらした状態で、糸掛け部材と糸とが接触する位置を変化させることができる。   In addition to the effects of the first invention, the fourth invention is characterized in that when the yarn hooking member rotates relative to the slack eliminating roller, the outer peripheral edge of the slack eliminating roller and the yarn hooking member as viewed from the axial direction of the slack eliminating roller. Therefore, the position where the yarn hooking member and the yarn come into contact with each other can be changed in a state where the rotation axis of the slack eliminating roller and the rotation axis of the yarn hooking member are shifted.

第５の発明は、第１の発明の効果に加えて、糸掛け部材が弛み取りローラに対して相対回転すると、弛み取りローラの外周縁と糸掛け部材の任意の点との距離が変化するため、糸掛け部材と糸とが接触する位置を変化させることができる。   In the fifth aspect of the invention, in addition to the effect of the first aspect, when the yarn hooking member rotates relative to the slack eliminating roller, the distance between the outer peripheral edge of the slack removing roller and an arbitrary point of the yarn hooking member changes. Therefore, the position where the yarn hooking member and the yarn come into contact can be changed.

次に、発明の実施の形態について図を用いて説明する。   Next, embodiments of the invention will be described with reference to the drawings.

図１は、この発明の第１の実施の形態による糸弛み取り装置を備えた紡績機の概略構成を示した側面図である。   FIG. 1 is a side view showing a schematic configuration of a spinning machine including a yarn slack eliminating device according to a first embodiment of the present invention.

図１を参照して、紡績機２０は、スライバ２７から紡績糸３４が製造される糸送り方向に沿って上流側から、ドラフト装置２１、紡績装置２２、糸送り装置２３、ヤーンクリアラ３８、糸弛み取り装置２４及び巻取り装置２５を備えている。更に、紡績機２０は、糸弛み取り装置２４と巻取り装置２５との間に、複数の紡績機２０間を移動する糸継ぎ台車４８に設置された糸継ぎ装置２６を備えている。スライバ２７がドラフト装置２１により引き伸ばされて繊維束３３となり、その繊維束３３が紡績装置２２により紡績されて紡績糸３４となる。その紡績糸３４は、糸送り装置２３により送られ、巻取り装置２５により巻き取られてパッケージ４６を形成する。   Referring to FIG. 1, the spinning machine 20 includes a draft device 21, a spinning device 22, a yarn feeding device 23, a yarn clearer 38, a yarn from the upstream side in the yarn feeding direction in which the spun yarn 34 is produced from the sliver 27. A slack eliminating device 24 and a winding device 25 are provided. Further, the spinning machine 20 includes a yarn joining device 26 installed on a yarn joining carriage 48 that moves between the plurality of spinning machines 20 between the yarn slack eliminating device 24 and the winding device 25. The sliver 27 is stretched by the draft device 21 to become a fiber bundle 33, and the fiber bundle 33 is spun by the spinning device 22 to become the spun yarn 34. The spun yarn 34 is fed by the yarn feeding device 23 and wound by the winding device 25 to form a package 46.

ドラフト装置２１は、図示しないケンスから引き出されたスライバ２７をローラで挟み込んで延伸する装置であり、糸送り方向上流側から、バックローラ対２８、サードローラ対２９、ミドルローラ対３１及びフロントローラ対３２の４組のローラを備えている。ミドルローラ対３１の各ローラにはエプロンベルト３０が装着されている。   The draft device 21 is a device that sandwiches and extends a sliver 27 drawn from a can (not shown) with a roller, and from the upstream side in the yarn feeding direction, a back roller pair 28, a third roller pair 29, a middle roller pair 31, and a front roller pair. There are 32 sets of 4 rollers. An apron belt 30 is attached to each roller of the middle roller pair 31.

紡績装置２２は、ドラフト装置２１のフロントローラ対３２から送られてきた繊維束３３に旋回気流を与えて紡績糸３４を製造する装置である。   The spinning device 22 is a device for producing a spun yarn 34 by applying a swirling airflow to the fiber bundle 33 sent from the front roller pair 32 of the draft device 21.

糸送り装置２３は、紡績装置２２で製造された紡績糸３４を、糸送り方向下流側に配置された巻取り装置２５へ送り出す装置である。糸送り装置２３は、デリベリローラ３５と、デリベリローラ３５に接触・離反自在に設けられたニップローラ３６とを備え、デリベリローラ３５とニップローラ３６との間に挟持された紡績糸３４が、デリベリローラ３５の回転駆動により巻取り装置２５へ送られる。   The yarn feeding device 23 is a device that feeds the spun yarn 34 manufactured by the spinning device 22 to a winding device 25 disposed downstream in the yarn feeding direction. The yarn feeding device 23 includes a delivery roller 35 and a nip roller 36 provided so as to be able to come into contact with and separate from the delivery roller 35. It is sent to the winding device 25.

ヤーンクリアラ３８は、巻取り装置２５へ送られる途中の紡績糸３４の糸欠点を検出する装置である。このヤーンクリアラ１５による糸欠点検出情報に基づいて、紡績糸３４の欠点部分が除去され、不良な糸のパッケージ４６への巻取りが防止される。ヤーンクリアラ３８から図示しないコントローラへ糸欠点検出情報が送信されると、コントラーラは、直ちにカッター３７で紡績糸３４を切断し、ドラフト装置２１や紡績装置２２等を停止させる。次に、糸継ぎ台車４８を紡績機２０の前まで自走させる。次に、紡績装置２２等を再び駆動させ、糸継ぎ台車４８に設置された糸継ぎ装置２６に糸継ぎを行わせ、紡績及び巻取りを再開させる。糸継ぎ台車４８は、図１の２点鎖線で示した位置で紡績装置２２から送り出される糸端を吸い込みながら捕捉して回動しながら糸継ぎ装置２６へ案内するサクションパイプ４９と、図１の２点鎖線で示した位置でパッケージ４６から糸端を吸い込みながら捕捉して回動しながら糸継ぎ装置２６へ案内するサクションマウス５０とを備えている。   The yarn clearer 38 is a device that detects a yarn defect of the spun yarn 34 being sent to the winding device 25. Based on the yarn defect detection information by the yarn clearer 15, the defect portion of the spun yarn 34 is removed, and winding of the defective yarn around the package 46 is prevented. When yarn defect detection information is transmitted from the yarn clearer 38 to a controller (not shown), the controller immediately cuts the spun yarn 34 with the cutter 37 and stops the draft device 21, the spinning device 22, and the like. Next, the yarn splicing cart 48 is caused to self-propel to the front of the spinning machine 20. Next, the spinning device 22 and the like are driven again, the yarn joining device 26 installed in the yarn joining cart 48 performs the yarn joining, and the spinning and winding are resumed. The yarn splicing carriage 48 includes a suction pipe 49 that guides the yarn end fed from the spinning device 22 while sucking and rotating and guiding it to the yarn splicing device 26 at a position indicated by a two-dot chain line in FIG. A suction mouth 50 is provided that guides the yarn splicing device 26 while rotating while sucking and sucking the yarn end from the package 46 at a position indicated by a two-dot chain line.

糸弛み取り装置２４は、紡績装置２２により紡績された紡績糸３４が巻取り装置２５により巻き取られる前に、紡績糸３４の巻取り張力を調整する装置であり、詳細については後述する。   The yarn slack eliminating device 24 is a device that adjusts the winding tension of the spun yarn 34 before the spun yarn 34 spun by the spinning device 22 is wound by the winding device 25, and will be described in detail later.

巻取り装置２５は、紡績装置２２で製造された紡績糸３４をボビンに巻き取って、パッケージ４６を製造する装置である。巻取り装置２５は、支軸４４を中心として揺動可能に支持されるクレードルアーム４５と、ボビンやパッケージ４６の周面に当接しながら回転駆動する巻取りドラム４７と、紡績糸３４を所定の幅でトラバースさせる図示しないトラバース装置とを備えている。クレードルアーム４５は、紡績糸３４が巻回されるボビンを回転自在に支持している。巻取りドラム４７が電動モータにより回転駆動すると、巻取りドラム４７に接触しているパッケージ４６が従動して回転し、紡績糸３４がパッケージ４６に巻き取られる。   The winding device 25 is a device that manufactures a package 46 by winding the spun yarn 34 manufactured by the spinning device 22 around a bobbin. The winding device 25 includes a cradle arm 45 supported so as to be swingable about a support shaft 44, a winding drum 47 that rotates while contacting a peripheral surface of a bobbin or a package 46, and a spun yarn 34. And a traverse device (not shown) for traversing in the width. The cradle arm 45 rotatably supports a bobbin around which the spun yarn 34 is wound. When the winding drum 47 is rotationally driven by the electric motor, the package 46 in contact with the winding drum 47 is driven and rotated, and the spun yarn 34 is wound around the package 46.

次に、糸弛み取り装置２４の詳細について説明する。   Next, details of the yarn slack eliminating device 24 will be described.

図２は、図１で示した糸弛み取り装置の概略構成を示した側面図である。   FIG. 2 is a side view showing a schematic configuration of the yarn slack eliminating device shown in FIG.

図２を参照して、糸弛み取り装置２４は、紡績糸３４が外周面に巻き付けられる弛み取りローラ３９と、弛み取りローラ３９を回転駆動させる電動モータ４２と、弛み取りローラ３９より糸送り方向上流側に配置された上流側ガイド４０と、上流側ガイド４０を進退駆動させるエアシリンダ４３と、弛み取りローラ３９より糸送り方向下流側に配置された下流側ガイド４１とを備えている。弛み取りローラ３９は電動モータ４２に支持され、上流側ガイド４０はエアシリンダ４３に支持され、電動モータ４２、エアシリンダ４３及び下流側ガイド４１はブラケット５１等の固定部材を介して紡績機２０に支持されている。上流側ガイド４０は紡績糸３４を弛み取りローラ３９へ案内し、下流側ガイド４１は紡績糸３４を巻取り装置２５へ案内する。下流側ガイド４１は、下流側ガイド４１の上端と紡績糸３４との交点が、弛み取りローラ３９の回転軸心のほぼ延長線上となるように配置されている。   Referring to FIG. 2, the yarn slack eliminating device 24 includes a slack eliminating roller 39 around which the spun yarn 34 is wound around an outer peripheral surface, an electric motor 42 that rotationally drives the slack eliminating roller 39, and a yarn feeding direction upstream from the slack eliminating roller 39. An upstream guide 40 disposed on the side, an air cylinder 43 that drives the upstream guide 40 forward and backward, and a downstream guide 41 disposed downstream of the slack eliminating roller 39 in the yarn feeding direction. The slack eliminating roller 39 is supported by an electric motor 42, the upstream guide 40 is supported by an air cylinder 43, and the electric motor 42, the air cylinder 43 and the downstream guide 41 are connected to the spinning machine 20 via a fixing member such as a bracket 51. It is supported. The upstream guide 40 guides the spun yarn 34 to the slack eliminating roller 39, and the downstream guide 41 guides the spun yarn 34 to the winding device 25. The downstream guide 41 is arranged so that the intersection of the upper end of the downstream guide 41 and the spun yarn 34 is substantially on the extension line of the rotational axis of the slack eliminating roller 39.

弛み取りローラ３９には、糸掛け部材５２が弛み取りローラ３９に対して相対回転可能に取り付けられている。糸掛け部材５２は、条件に応じて弛み取りローラ３９と一体的に、又は独立して同心で回転する。糸掛け部材５２は、弛み取りローラ３９から解舒されて走行する紡績糸３４に接触しながら、紡績糸３４を下流側ガイド４１へ案内する。   A thread hooking member 52 is attached to the slack eliminating roller 39 so as to be rotatable relative to the slack eliminating roller 39. The yarn hooking member 52 rotates concentrically with the slack eliminating roller 39 integrally or independently depending on conditions. The yarn hooking member 52 guides the spun yarn 34 to the downstream guide 41 while contacting the spun yarn 34 that is unwound from the slack eliminating roller 39 and travels.

上流側ガイド４０が図２の２点鎖線で示した前進位置にあるときは、紡績糸３４が糸掛け部材５２と係合することのない糸道が形成される。一方、上流側ガイド４０が図２の実線で示した後退位置にあるときは、上流側ガイド４０と下流側ガイド４１とによって形成される糸道が糸掛け部材の回転軌道面と交わり、紡績糸３４が糸掛け部材５２と係合して弛み取りローラ３９に巻き付けられる。上流側ガイド４０は、例えば糸継ぎ装置２６による糸継ぎ直前に、上流側の糸端が弛み取りローラ３９側に引っ張り込まれて糸継ぎ装置２６に案内されないことを防止するために前進位置に移動させる。一方、糸継ぎ中は、その間に紡績装置２２により紡績される紡績糸３４が糸継ぎ装置２６の上流側で滞留することを防止するために後退位置に移動させる。又、通常の巻取り時は、弛み取りローラ３９に紡績糸３４を巻き付かせて紡績糸３４の弛みを解消するとともに、巻取り張力を調整するために、上流側ガイド４０は後退位置にある。   When the upstream guide 40 is in the advanced position indicated by the two-dot chain line in FIG. 2, a yarn path in which the spun yarn 34 does not engage with the yarn hooking member 52 is formed. On the other hand, when the upstream guide 40 is in the retracted position shown by the solid line in FIG. 2, the yarn path formed by the upstream guide 40 and the downstream guide 41 intersects with the rotation track surface of the yarn hooking member, and the spun yarn 34 is engaged with the yarn hooking member 52 and wound around the slack eliminating roller 39. The upstream guide 40 is moved to the forward position to prevent the upstream yarn end from being pulled toward the slack eliminating roller 39 and guided to the yarn joining device 26 immediately before the yarn joining by the yarn joining device 26, for example. Let On the other hand, during yarn splicing, the spun yarn 34 spun by the spinning device 22 is moved to the retracted position in order to prevent the spun yarn 34 from staying on the upstream side of the yarn splicing device 26. Further, during normal winding, the upstream guide 40 is in the retracted position in order to eliminate the slack of the spun yarn 34 by winding the spun yarn 34 around the slack eliminating roller 39 and to adjust the winding tension. .

糸掛け部材５２は、接触して走行する紡績糸３４により糸掛け部材５２に所定の負荷がかかるまでは弛み取りローラ３９と一体的に回転する。上流側ガイド４０が後退位置にある状態で弛み取りローラ３９を一定方向に回転させると、紡績糸３４と糸掛け部材５２は係合して、糸掛け部材５２に所定の負荷がかかるまで、弛み取りローラ３９に紡績糸３４が巻き付く。そして、上記所定の負荷を超えると、糸掛け部材５２は弛み取りローラ３９とは独立して回転し、弛み取りローラ３９に巻き取られて貯溜されている紡績糸３４が次第に解舒されていく。上記所定の負荷により、所定の巻取り張力が紡績糸３４に付与される。糸掛け部材５２が弛み取りローラ３９に対して独立して回転しているときは、紡績糸３４は糸掛け部材５２に接触しながら走行して下流側ガイド４１へ向かっている。糸掛け部材５２は、弛み取りローラ３９に貯溜した紡績糸３４を解舒するときに、紡績糸３４の輪抜けを防止して弛み取りローラ３９から紡績糸３４が平均的に巻き出されるように案内する。又、糸掛け部材５２は、紡績糸３４と接触することにより適度の抵抗を付与して紡績糸３４の巻取り張力を適正化している。   The yarn hooking member 52 rotates integrally with the slack eliminating roller 39 until a predetermined load is applied to the yarn hooking member 52 by the spun yarn 34 traveling in contact therewith. When the slack eliminating roller 39 is rotated in a certain direction while the upstream guide 40 is in the retracted position, the spun yarn 34 and the yarn hooking member 52 are engaged with each other until the predetermined load is applied to the yarn hooking member 52. The spun yarn 34 is wound around the take-up roller 39. When the predetermined load is exceeded, the yarn hooking member 52 rotates independently of the slack eliminating roller 39, and the spun yarn 34 wound around and stored in the slack eliminating roller 39 is gradually unwound. . A predetermined winding tension is applied to the spun yarn 34 by the predetermined load. When the yarn hooking member 52 rotates independently of the slack eliminating roller 39, the spun yarn 34 travels in contact with the yarn hooking member 52 and travels toward the downstream guide 41. When unwinding the spun yarn 34 stored in the slack eliminating roller 39, the yarn hooking member 52 prevents the spun yarn 34 from slipping out so that the spun yarn 34 is unwound from the slack eliminating roller 39 on average. invite. Further, the yarn hooking member 52 imparts an appropriate resistance by coming into contact with the spun yarn 34 to optimize the winding tension of the spun yarn 34.

次に、弛み取りローラ３９及び糸掛け部材５２の詳細について説明する。   Next, details of the slack eliminating roller 39 and the yarn hooking member 52 will be described.

図３は図２で示した弛み取りローラの正面図であり、図４は図３で示したＩＶ−ＩＶラインの断面図であり、図５は図２で示した弛み取りローラの側面図である。   3 is a front view of the slack eliminating roller shown in FIG. 2, FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. 3, and FIG. 5 is a side view of the slack eliminating roller shown in FIG. is there.

図３、図４及び図５を参照して、弛み取りローラ３９は、下流側端面に凹部６８が形成されたローラ本体６０と、ローラ本体６０の凹部６８に一体的に固定されるナット部材６１と、ナット部材６１に螺合する調整ボルト６２とを備えている。ローラ本体６０、ナット部材６１及び調整ボルト６２の各々の軸心は一致するように配置されている。調整ボルト６２は、軸方向に貫通する筒孔を有し、調整ボルト６２の軸部の外周面とナット部材６１の内周面にはネジ部７５が形成されている。このネジ部７５により、調整ボルト６２はナット部材６１に螺合している。   Referring to FIGS. 3, 4, and 5, slack eliminating roller 39 includes roller body 60 having a recess 68 formed on the downstream end surface, and nut member 61 that is integrally fixed to recess 68 of roller body 60. And an adjusting bolt 62 that is screwed onto the nut member 61. The axial centers of the roller main body 60, the nut member 61, and the adjusting bolt 62 are arranged so as to coincide with each other. The adjustment bolt 62 has a cylindrical hole penetrating in the axial direction, and a screw portion 75 is formed on the outer peripheral surface of the shaft portion of the adjustment bolt 62 and the inner peripheral surface of the nut member 61. The adjustment bolt 62 is screwed into the nut member 61 by the screw portion 75.

糸掛け部材５２は、ローラ本体６０の回転軸心８０に対して回転軸心８１を一致させて相対回転可能に取り付けられるフライヤー軸７１と、フライヤー軸７１の先端にローラ本体の径方向に取り付けられた例えばセラミックからなるフライヤー７２とを備えている。フライヤー軸７１は、調整ボルト６２の上記筒孔に挿通され、ナット部材６１の内周面と調整ボルト６２の内周面との双方に対して軸受７４を介して回転自在に取り付けられている。フライヤー軸７１の先端は、調整ボルト６２及びローラ本体６０の端面から突出するように構成され、その先端にフライヤー７２が固定されている。フライヤー７２は、フライヤー軸７１と一体的に回転するように構成され、ローラ本体６０の外周縁７０から外周面６４に向かって湾曲する形状に形成されている。そのため、紡績糸３４を引っ掛けて、ローラ本体６０の外周面６４に確実に巻き付かせることができる。フライヤー軸７１は、その軸方向中途部にわずかに大径である円柱状部分７３を有し、円柱状部分７３の外周面が調整ボルト６２の内周面と所定の隙間をあけて径方向に対面可能となっている。   The yarn hooking member 52 is attached in the radial direction of the roller body to the tip of the flyer shaft 71 and a flyer shaft 71 that is attached to the rotation shaft center 80 of the roller body 60 so that the rotation shaft 81 coincides with the rotation shaft 81. For example, a flyer 72 made of ceramic is provided. The flyer shaft 71 is inserted into the cylindrical hole of the adjustment bolt 62 and is rotatably attached to both the inner peripheral surface of the nut member 61 and the inner peripheral surface of the adjustment bolt 62 via a bearing 74. The front end of the flyer shaft 71 is configured to protrude from the adjustment bolt 62 and the end surface of the roller body 60, and the flyer 72 is fixed to the front end. The flyer 72 is configured to rotate integrally with the flyer shaft 71, and is formed in a shape that curves from the outer peripheral edge 70 of the roller body 60 toward the outer peripheral surface 64. Therefore, the spun yarn 34 can be hooked and reliably wound around the outer peripheral surface 64 of the roller body 60. The flyer shaft 71 has a cylindrical portion 73 having a slightly larger diameter in the middle in the axial direction, and the outer peripheral surface of the cylindrical portion 73 is radially spaced from the inner peripheral surface of the adjustment bolt 62 with a predetermined gap. It is possible to meet.

円柱状部分７３の外周面には永久磁石７６が配置され、調整ボルト６２の内周面には半硬質性材料であるヒステリシス材７７が配置されている。永久磁石７６は、周方向に交互Ｎ極、Ｓ極、Ｎ極、Ｓ極・・・と交互に着磁されている。永久磁石７６とヒステリシス材７７が対向すると両者の磁気的結合により、ローラ本体６０に対するフライヤー軸７１の回転抵抗、即ち弛み取りローラ３９に対する糸掛け部材５２の回転抵抗が発生する。この回転抵抗から、弛み取りローラ３９に対して糸掛け部材５２が一体的に回転するか独立して回転するかの境界である上述した所定の負荷が決定される。調整ボルト６２を回転させて軸方向に移動させると、永久磁石７６とヒステリシス材７７との対向面積が変化し、両者の磁気的結合が変化するため、上記回転抵抗の大きさを調整することができる。対向面積が大きいと磁気的結合が強くなり回転抵抗は大きくなり、逆に、対向面積が小さいと磁気的結合が弱くなり回転抵抗は小さくなる。   A permanent magnet 76 is disposed on the outer peripheral surface of the cylindrical portion 73, and a hysteresis material 77, which is a semi-rigid material, is disposed on the inner peripheral surface of the adjustment bolt 62. The permanent magnet 76 is alternately magnetized in the circumferential direction with alternating N poles, S poles, N poles, S poles,. When the permanent magnet 76 and the hysteresis member 77 face each other, a rotational resistance of the flyer shaft 71 with respect to the roller body 60, that is, a rotational resistance of the yarn hooking member 52 with respect to the slack eliminating roller 39 is generated due to the magnetic coupling between the permanent magnet 76 and the hysteresis member 77. From the rotational resistance, the predetermined load described above, which is a boundary of whether the yarn hooking member 52 rotates integrally or independently with respect to the slack eliminating roller 39, is determined. When the adjustment bolt 62 is rotated and moved in the axial direction, the facing area of the permanent magnet 76 and the hysteresis member 77 changes, and the magnetic coupling between the two changes, so that the magnitude of the rotational resistance can be adjusted. it can. When the facing area is large, the magnetic coupling is strong and the rotational resistance is large. Conversely, when the facing area is small, the magnetic coupling is weak and the rotational resistance is small.

ローラ本体６０の外周面６４は、糸掛け部材５２が取り付けられている側を先端、電動モータ４２が取り付けられている側を基端とすれば、基端から先端に向かって、テーパ部６５、円筒部６６、テーパ部６７となるように形成されている。テーパ部６５・６７は、端面側が大径となるように緩やかに傾斜している。円筒部６６は、ほぼ同一径からなる同心円により形成され、両側のテーパ部６５・６７に対して継ぎ目なく連続する形状となっている。弛み取りローラ３９の下流側端部である先端側端部の外周縁７０は、図３で示したように、弛み取りローラ３９の軸方向からみて、長径Ａ、短径Ｂとした楕円形状となるように形成されている。ローラ本体６０は、ローラ本体６０の径方向からねじ込まれた固定ネジ６９により、電動モータ４２のモータ軸６３に固定されている。   The outer peripheral surface 64 of the roller body 60 has a tapered portion 65 from the proximal end toward the distal end when the side to which the yarn hooking member 52 is attached is the distal end and the side to which the electric motor 42 is attached is the proximal end. The cylindrical portion 66 and the tapered portion 67 are formed. The taper portions 65 and 67 are gently inclined so that the end face side has a large diameter. The cylindrical portion 66 is formed by concentric circles having substantially the same diameter, and has a shape that is continuous with the tapered portions 65 and 67 on both sides without a seam. As shown in FIG. 3, the outer peripheral edge 70 of the front end side, which is the downstream end of the slack eliminating roller 39, has an elliptical shape with a long diameter A and a short diameter B as seen from the axial direction of the slack eliminating roller 39. It is formed to become. The roller body 60 is fixed to the motor shaft 63 of the electric motor 42 by a fixing screw 69 screwed from the radial direction of the roller body 60.

基端側のテーパ部６５は、上流側から供給されて巻きついた紡績糸３４を、大径部分から小径部分に向かって円滑に移動させて中間の円筒部６６の表面に規則正しく巻き付かせる機能を有している。一方、先端側のテーパ部６７は、解舒の際に巻き付いた紡績糸３４が一度に抜けてしまう輪抜け現象を防止すると共に、紡績糸３４を小径部分から大径部分へ順送りに巻き戻して、紡績糸１０の円滑な引き出しを確保する機能を有している。弛み取りローラ３９に巻き付けられた紡績糸３４は、最終的に外周縁７０と接触しながらローラ本体６０から引き出され、糸掛け部材５２のフライヤー７２に接触しながら走行する。   The taper portion 65 on the base end side has a function of smoothly winding the spun yarn 34 supplied and wound from the upstream side from the large diameter portion toward the small diameter portion so as to be regularly wound around the surface of the intermediate cylindrical portion 66. have. On the other hand, the taper portion 67 on the front end side prevents a loop-out phenomenon in which the spun yarn 34 wound at the time of unwinding is pulled out at once, and rewinds the spun yarn 34 from the small diameter portion to the large diameter portion in a forward feed. , Has a function of ensuring a smooth pull-out of the spun yarn 10. The spun yarn 34 wound around the slack eliminating roller 39 is finally pulled out from the roller body 60 while being in contact with the outer peripheral edge 70, and travels while being in contact with the flyer 72 of the yarn hooking member 52.

図３を参照して、糸掛け部材５２が弛み取りローラ３９に対して相対回転するときに、糸掛け部材５２が長径Ａ部分に位置している場合が実線で示され、短径Ｂ部分に位置している場合が２点鎖線で示されている。ここで、糸掛け部材５２の回転軌跡は円形形状であり、弛み取りローラ３９の外周縁７０は楕円形状である。そのため、弛み取りローラ３９の軸方向（図３において紙面に対して垂直に貫通する方向）からみた、弛み取りローラ３９の外周縁７０と糸掛け部材５２のフライヤー７２との交点は、糸掛け部材５２が長径Ａ部分に位置している場合と短径Ｂ部分に位置している場合で異なっている。換言すれば、弛み取りローラ３９に対する糸掛け部材５２の回転位置によって、上記交点は異なる。そして、弛み取りローラ３９に巻き付けられた紡績糸３４は、ローラ本体６０の外周縁７０と接触しながら走行し、糸掛け部材５２のフライヤー７２と接触しながら走行して、下流側ガイド４１に向かって弛み取りローラ３９の回転軸心８０の延長線上に引き出される。   Referring to FIG. 3, when the yarn hooking member 52 rotates relative to the slack eliminating roller 39, the case where the yarn hooking member 52 is positioned in the major axis A portion is indicated by a solid line, and the minor axis B portion is indicated. The case where it is located is indicated by a two-dot chain line. Here, the rotation locus of the yarn hooking member 52 has a circular shape, and the outer peripheral edge 70 of the slack eliminating roller 39 has an elliptical shape. Therefore, the intersection of the outer peripheral edge 70 of the slack eliminating roller 39 and the flyer 72 of the yarn hooking member 52 as viewed from the axial direction of the slack eliminating roller 39 (the direction perpendicular to the paper surface in FIG. 3) is the yarn hooking member. The case where 52 is located in the major axis A part and the case where it is located in the minor axis B part are different. In other words, the intersection point differs depending on the rotational position of the yarn hooking member 52 with respect to the slack eliminating roller 39. The spun yarn 34 wound around the slack eliminating roller 39 travels while contacting the outer peripheral edge 70 of the roller body 60, travels while contacting the flyer 72 of the yarn hooking member 52, and travels toward the downstream guide 41. Then, the slack eliminating roller 39 is pulled out on an extension line of the rotation axis 80.

ここで、図５を参照して、糸掛け部材５２が長径Ａ部分に位置している場合が実線で示され、短径Ｂ部分に位置している場合が２点鎖線で示されている。糸掛け部材５２が弛み取りローラ３９に対して相対回転すると、糸掛け部材５２と解舒される紡績糸３４とが接触する位置が幅Ｄの間で変化する。   Here, with reference to FIG. 5, the case where the yarn hooking member 52 is located in the major axis A portion is shown by a solid line, and the case where it is located in the minor axis B portion is shown by a two-dot chain line. When the yarn hooking member 52 rotates relative to the slack eliminating roller 39, the position where the yarn hooking member 52 and the spun yarn 34 to be unwound are changed between the widths D.

尚、弛み取りローラ３９の回転軸心８０と糸掛け部材５２の回転軸心８１とが一致するように設定され、弛み取りローラ３９の下流側端部の外周縁７０が、弛み取りローラ３９の軸方向からみて楕円形状となるように形成されたものが、糸掛け部材５２と紡績糸３４とが接触する位置を変更させる接触位置変更手段を構成する。   The rotation axis 80 of the slack eliminating roller 39 and the rotation axis 81 of the yarn hooking member 52 are set to coincide with each other, and the outer peripheral edge 70 at the downstream end of the slack eliminating roller 39 is connected to the slack eliminating roller 39. What is formed so as to be elliptical when viewed from the axial direction constitutes a contact position changing means for changing the position where the yarn hooking member 52 and the spun yarn 34 come into contact with each other.

以上から上記のように構成される糸弛み取り装置２４では、糸掛け部材５２と紡績糸３４とが接触する位置が一定でなくなり、所定の幅Ｄをもって変化するため、紡績糸３４の走行による摩耗に対して局所的に摩耗が進行することがなく、糸掛け部材５２の寿命を向上させることができる。したがって、紡績機２０を停止させ、摩耗により糸掛け部材５２が折れる等の不具合から糸掛け部材５２を交換することが減少し、パッケージ４６の生産性を向上させることができる。又、糸掛け部材５２が弛み取りローラ３９に対して相対回転すると、弛み取りローラ３９の軸方向からみた、弛み取りローラ３９の外周縁７０と糸掛け部材５２との交点が変化するため、弛み取りローラ３９の回転軸心８０と糸掛け部材５２の回転軸心８１とを一致させた状態で、糸掛け部材５２と紡績糸３４とが接触する位置を変化させることができる。   As described above, in the yarn slack eliminating device 24 configured as described above, the position where the yarn hooking member 52 and the spun yarn 34 come into contact with each other is not constant and changes with a predetermined width D. However, the wear does not progress locally, and the life of the yarn hooking member 52 can be improved. Therefore, it is possible to improve the productivity of the package 46 by reducing the replacement of the yarn hooking member 52 due to problems such as the spinning machine 20 being stopped and the yarn hooking member 52 being broken due to wear. When the yarn hooking member 52 rotates relative to the slack eliminating roller 39, the intersection between the outer peripheral edge 70 of the slack eliminating roller 39 and the yarn hooking member 52 as viewed from the axial direction of the slack eliminating roller 39 changes. The position where the yarn hooking member 52 and the spun yarn 34 come into contact with each other can be changed in a state where the rotation shaft center 80 of the take-up roller 39 and the rotation shaft center 81 of the yarn hooking member 52 are matched.

図３に戻って、弛み取りローラ３９の外周縁７０が、弛み取りローラ３９の軸方向からみて、糸掛け部材５２の回転軸心８１の任意点Ｐから弛み取りローラ３９の外周縁７０の一点Ｑまでの距離Ｌ１と、上記任意点Ｐから弛み取りローラ３９の外周縁７０の他の一点Ｒまでの距離Ｌ２とが相違するように構成されてもよい。糸掛け部材５２の回転軸心８１の任意点Ｐは、図４及び図５で示した回転軸心８１上であればいずれの点であってもよい。そのような構成であれば、糸掛け部材５２が弛み取りローラ３９に対して相対回転すると、弛み取りローラ３９の軸方向からみた、弛み取りローラ３９の外周縁７０と糸掛け部材５２との交点が変化する。そのため、弛み取りローラ３９の回転軸心８０と糸掛け部材５２の回転軸心８１との位置関係に関わらず、糸掛け部材５２と紡績糸３４とが接触する位置を変化させることができる。   Returning to FIG. 3, the outer peripheral edge 70 of the slack eliminating roller 39 is one point of the outer peripheral edge 70 of the slack eliminating roller 39 from an arbitrary point P of the rotational axis 81 of the yarn hooking member 52 when viewed from the axial direction of the slack eliminating roller 39. The distance L1 to Q may be different from the distance L2 from the arbitrary point P to the other point R of the outer peripheral edge 70 of the slack eliminating roller 39. The arbitrary point P of the rotation axis 81 of the yarn hooking member 52 may be any point as long as it is on the rotation axis 81 shown in FIGS. With such a configuration, when the yarn hooking member 52 rotates relative to the slack eliminating roller 39, the intersection between the outer peripheral edge 70 of the slack eliminating roller 39 and the yarn hooking member 52 as viewed from the axial direction of the slack eliminating roller 39. Changes. Therefore, regardless of the positional relationship between the rotation axis 80 of the slack eliminating roller 39 and the rotation axis 81 of the yarn hooking member 52, the position where the yarn hooking member 52 and the spun yarn 34 are in contact can be changed.

この場合、弛み取りローラ３９の下流側端部の外周縁７０が、前記弛み取りローラの軸方向からみて、糸掛け部材５２の回転軸心８１の任意点Ｐから外周縁７０の一点Ｑまでの距離Ｌ１と、上記任意点Ｐから外周縁７０の他の一点Ｒまでの距離Ｌ２とが相違するように形成されたものが、糸掛け部材５２と紡績糸３４とが接触する位置を変更させる接触位置変更手段を構成する。   In this case, the outer peripheral edge 70 of the downstream end portion of the slack eliminating roller 39 extends from an arbitrary point P of the rotational axis 81 of the yarn hooking member 52 to one point Q of the outer peripheral edge 70 when viewed from the axial direction of the slack eliminating roller. A contact formed so that the distance L1 is different from the distance L2 from the arbitrary point P to the other point R of the outer peripheral edge 70 changes the position where the yarn hooking member 52 and the spun yarn 34 come into contact with each other. The position changing means is configured.

図６は、この発明の第２の実施の形態による糸弛み取り装置に用いられる弛み取りローラの側面図であり、先の第１の実施の形態の図５に対応した図である。基本的な構成は第１の実施の形態による糸弛み取り装置２４と共通するので異なる点を中心に説明する。   FIG. 6 is a side view of a slack eliminating roller used in the yarn slack eliminating device according to the second embodiment of the present invention, and corresponds to FIG. 5 of the previous first embodiment. Since the basic configuration is the same as that of the yarn slack eliminating device 24 according to the first embodiment, different points will be mainly described.

図６を参照して、第１の実施の形態による糸弛み取り装置２４では、弛み取りローラ３９の外周縁７０が楕円形状に形成されていたが、第２の実施の形態による糸弛み取り装置では、弛み取りローラ８２の外周縁７０が弛み取りローラ８２の軸方向からみて、回転軸心８０が中心を通る円形形状に形成されている。又、第１の実施の形態による糸弛み取り装置２４では、弛み取りローラ３９の回転軸心と糸掛け部材５２の回転軸心とが一致するように設定されていたが、第２の実施の形態による糸弛み取り装置では、弛み取りローラ８２の回転軸心８０と糸掛け部材５２の回転軸心８１とが所定の範囲で平行にずれるように設定されている。この所定の範囲は、例えば、糸掛け部材５２が上流側ガイド４０から送られてくる紡績糸３４を引っ掛けることができ、弛み取りローラ８２の外周縁７０と干渉することなく相対回転することができる範囲である。   Referring to FIG. 6, in the yarn slack eliminating device 24 according to the first embodiment, the outer peripheral edge 70 of the slack eliminating roller 39 is formed in an elliptical shape, but the yarn slack eliminating device according to the second embodiment. Then, the outer peripheral edge 70 of the slack eliminating roller 82 is formed in a circular shape with the rotation axis 80 passing through the center as seen from the axial direction of the slack eliminating roller 82. In the yarn slack eliminating device 24 according to the first embodiment, the rotational axis of the slack eliminating roller 39 and the rotational axis of the yarn hooking member 52 are set to coincide with each other. In the yarn slack eliminating device according to the embodiment, the rotation axis 80 of the slack eliminating roller 82 and the rotation axis 81 of the yarn hooking member 52 are set to be shifted in parallel within a predetermined range. In this predetermined range, for example, the yarn hooking member 52 can hook the spun yarn 34 sent from the upstream guide 40 and can rotate relatively without interfering with the outer peripheral edge 70 of the slack eliminating roller 82. It is a range.

尚、弛み取りローラ８２の回転軸心８０と糸掛け部材５２の回転軸心８１とを平行になるように所定の範囲でずらしたものが、糸掛け部材５２と紡績糸３４とが接触する位置を変更させる接触位置変更手段を構成する。   A position where the rotation axis 80 of the slack eliminating roller 82 and the rotation axis 81 of the yarn hooking member 52 are shifted in a predetermined range so as to be parallel to each other is a position where the yarn hooking member 52 and the spun yarn 34 come into contact with each other. The contact position changing means for changing is configured.

上記のように構成される糸弛み取り装置では、図６の実線と２点鎖線とで示した範囲で糸掛け部材５２の回転位置が弛み取りローラ８２に対して変化する。したがって、糸掛け部材５２が弛み取りローラ８２に対して相対回転すると、糸掛け部材５２と解舒される紡績糸３４とが接触する位置が幅Ｄの間で変化する。そのため、弛み取りローラ８２の外周縁７０を円形形状とした状態で、糸掛け部材５２と紡績糸３４とが接触する位置を変化させることができる。   In the yarn slack eliminating device configured as described above, the rotational position of the yarn hooking member 52 changes with respect to the slack eliminating roller 82 within the range indicated by the solid line and the two-dot chain line in FIG. Therefore, when the yarn hooking member 52 rotates relative to the slack eliminating roller 82, the position where the yarn hooking member 52 and the spun yarn 34 to be unwound are changed between the widths D. Therefore, the position where the yarn hooking member 52 and the spun yarn 34 come into contact with each other can be changed while the outer peripheral edge 70 of the slack eliminating roller 82 has a circular shape.

図７は、この発明の第３の実施の形態による糸弛み取り装置に用いられる弛み取りローラの側面図であり、先の第１の実施の形態の図５に対応した図である。基本的な構成は第１の実施の形態による糸弛み取り装置２４と共通するので異なる点を中心に説明する。   FIG. 7 is a side view of a slack eliminating roller used in the yarn slack eliminating device according to the third embodiment of the present invention, and corresponds to FIG. 5 of the previous first embodiment. Since the basic configuration is the same as that of the yarn slack eliminating device 24 according to the first embodiment, different points will be mainly described.

図７を参照して、第１の実施の形態による糸弛み取り装置２４では、弛み取りローラ３９の外周縁７０が楕円形状に形成されていたが、第３の実施の形態による糸弛み取り装置では、弛み取りローラ８３の外周縁７０が弛み取りローラ８２の軸方向からみて、回転軸心８０が中心を通る円形形状に形成されている。又、第１の実施の形態による糸弛み取り装置２４では、弛み取りローラ３９の回転軸心と糸掛け部材５２の回転軸心とが一致するように設定されていたが、第３の実施の形態による糸弛み取り装置では、弛み取りローラ８３の回転軸心８０に対して糸掛け部材５２の回転軸心８１が所定の範囲である角度θ傾斜するように設定されている。図４に戻って、糸掛け部材５２を傾斜させるために、ローラ本体６０に対してナット部材６１及び調整ボルト６２を合わせて一体として傾斜させる。角度θは、例えば、糸掛け部材５２が上流側ガイド４０から送られてくる紡績糸３４を引っ掛けることができ、弛み取りローラ８３の外周縁７０と干渉することなく相対回転することができる範囲である。   Referring to FIG. 7, in the yarn slack eliminating device 24 according to the first embodiment, the outer peripheral edge 70 of the slack eliminating roller 39 is formed in an elliptical shape, but the yarn slack eliminating device according to the third embodiment. Then, the outer peripheral edge 70 of the slack eliminating roller 83 is formed in a circular shape with the rotation axis 80 passing through the center when viewed from the axial direction of the slack eliminating roller 82. In the yarn slack eliminating device 24 according to the first embodiment, the rotational axis of the slack eliminating roller 39 and the rotational axis of the yarn hooking member 52 are set to coincide with each other. In the yarn slack eliminating device according to the embodiment, the rotation axis 81 of the yarn hooking member 52 is set to be inclined at an angle θ that is a predetermined range with respect to the rotation axis 80 of the slack eliminating roller 83. Returning to FIG. 4, in order to incline the thread hooking member 52, the nut member 61 and the adjustment bolt 62 are combined and inclined with respect to the roller body 60. For example, the angle θ is within a range in which the yarn hooking member 52 can hook the spun yarn 34 sent from the upstream guide 40 and can relatively rotate without interfering with the outer peripheral edge 70 of the slack eliminating roller 83. is there.

尚、糸掛け部材５２の回転軸心８１を弛み取りローラ８３の回転軸心８０に対して所定の範囲で傾斜させたものが、糸掛け部材５２と紡績糸３４とが接触する位置を変更させる接触位置変更手段を構成する。   Note that the rotation axis 81 of the yarn hooking member 52 inclined by a predetermined range with respect to the rotation axis 80 of the slack eliminating roller 83 changes the position where the yarn hooking member 52 and the spun yarn 34 come into contact with each other. The contact position changing means is configured.

上記のように構成される糸弛み取り装置では、図７の実線と２点鎖線とで示した範囲で糸掛け部材５２の回転位置が弛み取りローラ８３に対して変化する。したがって、糸掛け部材５２が弛み取りローラ８３に対して相対回転すると、弛み取りローラ８３の外周縁７０と糸掛け部材５２の任意の点との距離が変化し、糸掛け部材５２と解舒される紡績糸３４とが接触する位置が幅Ｄの間で変化する。そのため、糸掛け部材５２と紡績糸３４とが接触する位置を変化させることができる。   In the yarn slack eliminating device configured as described above, the rotational position of the yarn hooking member 52 changes with respect to the slack eliminating roller 83 within the range indicated by the solid line and the two-dot chain line in FIG. Therefore, when the yarn hooking member 52 rotates relative to the slack eliminating roller 83, the distance between the outer peripheral edge 70 of the slack removing roller 83 and an arbitrary point on the yarn hooking member 52 changes, and the yarn hooking member 52 is unwound. The position where the spun yarn 34 comes into contact changes between the widths D. Therefore, the position where the yarn hooking member 52 and the spun yarn 34 come into contact can be changed.

尚、上記の各実施の形態では、弛み取りローラに対して磁気的結合を利用して糸掛け部材に回転抵抗を与えるように構成されているが、糸掛け部材が弛み取りローラに対して相対回転するものであれば、他の構成であってもよい。   In each of the above embodiments, the slack eliminating roller is configured to apply a rotational resistance to the yarn hooking member by using magnetic coupling. However, the yarn hooking member is relative to the slack eliminating roller. Other configurations may be used as long as they rotate.

この発明の第１の実施の形態による糸弛み取り装置を備えた紡績機の概略構成を示した側面図である。It is the side view which showed schematic structure of the spinning machine provided with the yarn slack removal apparatus by 1st Embodiment of this invention. 図１で示した糸弛み取り装置の概略構成を示した側面図である。It is the side view which showed schematic structure of the yarn slack removal apparatus shown in FIG. 図２で示した弛み取りローラの正面図である。FIG. 3 is a front view of the slack eliminating roller shown in FIG. 2. 図３で示したＩＶ−ＩＶラインの断面図である。It is sectional drawing of the IV-IV line shown in FIG. 図２で示した弛み取りローラの側面図である。FIG. 3 is a side view of the slack eliminating roller shown in FIG. 2. この発明の第２の実施の形態による糸弛み取り装置に用いられる弛み取りローラの側面図である。It is a side view of the slack eliminating roller used for the yarn slack eliminating apparatus by 2nd Embodiment of this invention. この発明の第３の実施の形態による糸弛み取り装置に用いられる弛み取りローラの側面図である。It is a side view of the slack eliminating roller used for the yarn slack eliminating apparatus by 3rd Embodiment of this invention.

符号の説明Explanation of symbols

２２ 紡績装置
２４ 糸弛み取り装置
２５ 巻取り装置
３４ 紡績糸
３９，８２，８３ 弛み取りローラ
４０ 上流側ガイド
４１ 下流側ガイド
５２ 糸掛け部材
６４ 外周面
７０ 外周縁
８０，８１ 回転軸心 DESCRIPTION OF SYMBOLS 22 Spinning device 24 Yarn slack removal device 25 Winding device 34 Spinning yarn 39, 82, 83 Slack removal roller 40 Upstream side guide 41 Downstream side guide 52 Yarn hooking member 64 Outer peripheral surface 70 Outer peripheral edge 80, 81 Rotation center

Claims (5)

紡績装置により紡績された糸が巻取り装置により巻き取られる前に、前記糸の巻取り張力を調整する糸弛み取り装置であって、
回転駆動され、前記糸が外周面に巻き付けられる弛み取りローラと、
前記弛み取りローラより上流側に配置され、前記糸を前記弛み取りローラへ案内する上流側ガイドと、
前記弛み取りローラより下流側に配置され、前記糸を前記巻取り装置へ案内する下流側ガイドと、
前記弛み取りローラに相対回転可能に取り付けられ、前記弛み取りローラから解舒されて走行する前記糸に接触しながら、前記糸を前記下流側ガイドへ案内する糸掛け部材と、
前記糸掛け部材と前記糸とが接触する位置を変更させる接触位置変更手段とを備えた、糸弛み取り装置。 A yarn slack eliminating device that adjusts the winding tension of the yarn before the yarn spun by the spinning device is wound by the winding device,
A slack eliminating roller that is rotationally driven and the yarn is wound around the outer peripheral surface;
An upstream guide that is arranged upstream of the slack eliminating roller and guides the yarn to the slack eliminating roller;
A downstream guide disposed downstream of the slack eliminating roller and guiding the yarn to the winding device;
A yarn hooking member that is attached to the slack eliminating roller so as to be relatively rotatable, and that guides the yarn to the downstream guide while being in contact with the yarn that is unwound from the slack eliminating roller and travels;
A yarn slack eliminating device comprising contact position changing means for changing a position where the yarn hooking member and the yarn contact each other. 前記接触位置変更手段は、前記弛み取りローラの下流側端部の外周縁が、前記弛み取りローラの軸方向からみて、前記糸掛け部材の回転軸心の任意点から前記外周縁の一点までの距離と、前記任意点から前記外周縁の他の一点までの距離とが相違するように形成されたものである、請求項１記載の糸弛み取り装置。   The contact position changing means is configured such that the outer peripheral edge of the downstream end of the slack eliminating roller extends from an arbitrary point of the rotation axis of the yarn hooking member to one point of the outer peripheral edge when viewed from the axial direction of the slack eliminating roller. The yarn slack eliminating device according to claim 1, wherein the distance and the distance from the arbitrary point to another point on the outer peripheral edge are different. 前記接触位置変更手段は、前記弛み取りローラの回転軸心と前記糸掛け部材の回転軸心とが一致するように設定され、前記弛み取りローラの下流側端部の外周縁が、前記弛み取りローラの軸方向からみて楕円形状となるように形成されたものである、請求項１記載の糸弛み取り装置。   The contact position changing means is set so that a rotation axis of the slack eliminating roller and a rotation axis of the yarn hooking member coincide with each other, and an outer peripheral edge of a downstream end portion of the slack eliminating roller is the slack eliminating roller. The yarn slack eliminating device according to claim 1, wherein the yarn slack eliminating device is formed so as to have an elliptical shape when viewed from the axial direction of the roller. 前記接触位置変更手段は、前記弛み取りローラの回転軸心と前記糸掛け部材の回転軸心とを平行になるように所定の範囲でずらしたものである、請求項１記載の糸弛み取り装置。   2. The yarn slack eliminating device according to claim 1, wherein the contact position changing unit is configured to shift a rotation axis of the slack eliminating roller and a rotation axis of the yarn hooking member within a predetermined range so as to be parallel. . 前記接触位置変更手段は、前記糸掛け部材の回転軸心を前記弛み取りローラの回転軸心に対して所定の範囲で傾斜させたものである、請求項１記載の糸弛み取り装置。   2. The yarn slack eliminating device according to claim 1, wherein the contact position changing means is configured to incline the rotation axis of the yarn hooking member within a predetermined range with respect to the rotation axis of the slack eliminating roller.
JP2008015539A 2008-01-25 2008-01-25 Slack eliminating device Pending JP2009173419A (en)

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JP2008015539A JP2009173419A (en) 2008-01-25 2008-01-25 Slack eliminating device
EP08020755.8A EP2083103B1 (en) 2008-01-25 2008-11-28 Slack eliminating device
CN2009100020254A CN101492136B (en) 2008-01-25 2009-01-08 Slack eliminating device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2392531A2 (en) 2010-06-02 2011-12-07 Murata Machinery, Ltd. Yarn accumulating device

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CN111362067B (en) * 2020-03-24 2021-06-22 海宁市万路针织有限公司 Knitwear yarn winding device

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JP4082250B2 (en) * 2003-03-17 2008-04-30 村田機械株式会社 Thread loosening device for spinning machine
JP2006306588A (en) * 2005-04-28 2006-11-09 Murata Mach Ltd Yarn sag removing device in textile machine
JP2008105755A (en) * 2006-10-23 2008-05-08 Murata Mach Ltd Loosened yarn-tightening device incorporating electromagnetic tenser
JP2009046778A (en) * 2007-08-21 2009-03-05 Murata Mach Ltd Winding tension control device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2392531A2 (en) 2010-06-02 2011-12-07 Murata Machinery, Ltd. Yarn accumulating device
EP2392531A3 (en) * 2010-06-02 2012-10-10 Murata Machinery, Ltd. Yarn accumulating device

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EP2083103A3 (en) 2011-05-11
CN101492136B (en) 2012-08-29

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