JP2008094539A - Piecing device and piecing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piecing device and a piecing method capable of reducing a lowering width of the flame resistance forming processing temperature, by preventing a yarn cut of fiber yarn in a flame resistance forming process, by uniformly entangling the mutual fiber yarns. <P>SOLUTION: This piecing device is characterized in that a part of two aggregation toes 2a and 2b is superposed, and a pair of sandwiching parts 3 and 4 sandwiching this superposed part in front and in rear are arranged so as to be capable of approaching, and a compressed fluid is injected in a state of holding the superposed part of the aggregation toes 2a and 2b between the sandwiching parts 3 and 4, and entangling devices 7a, 7b and 7c for entanglement are arranged by at least three units, and when the sandwiching parts 3 and 4 adjacently approach the respective entangling devices 7a, 7b and 7c, a weight 23 for applying a relaxation quantity is detachably arranged in the superposed part of the aggregation toes 2a and 2b held by the respective entangling devices 7a, 7b and 7c. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、炭素繊維等の糸条を交絡させる糸継ぎ装置及び糸継ぎ方法に関し、特に複数の小トウに幅方向に分割可能な集合トウである炭素繊維前躯体の一方の小トウの終端部と他方の小トウの始端部とを糸継ぎする糸継ぎ装置及び糸継ぎ方法に関するものである。   The present invention relates to a yarn splicing device and a splicing method for entanglement of yarns such as carbon fibers, and in particular, an end portion of one small tow of a carbon fiber precursor that is a collective tow that can be divided into a plurality of small tows in the width direction. The present invention relates to a yarn joining device and a yarn joining method for joining a yarn and a starting end portion of the other small tow.

従来から、炭素繊維の製造工程（耐炎化工程）における操業性を向上させるために、その炭素繊維の前躯体となるアクリル系等の糸条繊維の端部同士を交絡させて接合し、連続的に炭素繊維の製造工程に糸条繊維を供給するための糸継ぎ装置が知られている。
この糸継ぎ装置としては、例えば、特許文献１に開示されているように、押え台と押え棒とからなる糸条を挟持するための一対のクランプ手段と、このクランプ手段間に設けられた複数の交絡手段とを備え、糸条を弛緩するためにクランプ手段の間隔が縮まるようになっているものが提案されている。 Conventionally, in order to improve the operability in the production process (flame resistance process) of carbon fiber, the ends of the acrylic fiber, which is the precursor of the carbon fiber, are entangled and joined together. There is known a yarn splicing device for supplying yarn fibers to a carbon fiber production process.
As this yarn splicing device, for example, as disclosed in Patent Document 1, a pair of clamp means for holding a thread composed of a presser base and a presser bar, and a plurality of clamp means provided between the clamp means. In order to relax the yarn, there has been proposed one in which the interval between the clamping means is reduced.

また、交絡処理室の糸条の長手方向に３個以上の交絡手段を備え、各交絡手段の両側にそれぞれ糸条の長手方向に横切る方向に揺動可能に支持された糸把持手段と、この糸把持手段と交絡手段を揺動させる揺動操作手段とを設け、交絡手段相互の間隔を７０〜３００ｍｍとしたものが提案されている（例えば、特許文献２参照）。この特許文献２に開示された装置の糸把持手段を揺動させる揺動操作手段は、最初に任意の１個の糸把持手段で糸条を把持し、次にその１個の糸把持手段から離れる方向に向けて各糸把持手段で順次糸条を把持せしめる機構を有している。   Further, there are provided three or more entanglement means in the longitudinal direction of the yarn in the entanglement processing chamber, and thread holding means supported on both sides of each entanglement means so as to be swingable in the direction transverse to the longitudinal direction of the yarn. A thread gripping means and a swing operation means for swinging the entanglement means are provided, and the distance between the entanglement means is 70 to 300 mm (for example, see Patent Document 2). The swing operation means for swinging the thread gripping means of the apparatus disclosed in Patent Document 2 grips the yarn with any one thread gripping means first, and then from the one thread gripping means. It has a mechanism for gripping the yarn sequentially by each yarn gripping means in the direction of leaving.

さらに、２本の繊維糸条の端部を引き揃え同端部を流体で絡合ノズルから連続的に流体を噴射して２本の繊維糸条の接続領域にわたって、少なくとも１回往復させて糸条を扁平状に接続させる方法が提案されている（例えば、特許文献３参照）。
そして、重ね合わせた糸条を把持する把持装置と把持装置間に複数個の交絡手段を配置した装置で扁平状に交絡する装置が提案されている（例えば、特許文献４参照）。
特公平４−３３７１１号公報 特許第３３８９６２４号公報 特開２００２−３０２３４２号公報 特願２００３−５０３８７１号公報 Furthermore, the ends of the two fiber yarns are aligned, and the same end is continuously ejected from the entanglement nozzle with the fluid, and the yarn is reciprocated at least once over the connection region of the two fiber yarns. A method of connecting the strips in a flat shape has been proposed (see, for example, Patent Document 3).
And the apparatus which entangles in a flat shape with the apparatus which has arrange | positioned several entanglement means between the holding | grip apparatus which hold | gripped the piled yarn, and the holding | gripping apparatus is proposed (for example, refer patent document 4).
Japanese Patent Publication No. 4-33711 Japanese Patent No. 3389624 JP 2002-302342 A Japanese Patent Application No. 2003-503871

しかしながら、特許文献１に開示された技術では、クランプ手段間の弛み寸法は所定の寸法に規定されているが、複数個の交絡手段を設けたときには、バルーニング防止プレートを設けているだけで各交絡手段の弛み代を個々に規制していないため、交絡が不揃いとなり、十分な糸継ぎ効果が得られないとい課題がある。また、局部的に糸条密度の高い部分ができ、耐炎化工程中にその高密度部分が蓄熱し、糸切れを起こすおそれがあるため、耐炎化処理温度を低下させなければならないという課題がある。   However, in the technique disclosed in Patent Document 1, the slack dimension between the clamping means is defined as a predetermined dimension. However, when a plurality of entanglement means are provided, each entanglement is performed only by providing a ballooning prevention plate. Since the slack allowance of the means is not individually regulated, there is a problem that the entanglement becomes uneven and a sufficient splicing effect cannot be obtained. In addition, there is a problem in that a portion having a high yarn density is locally formed and the high-density portion accumulates heat during the flameproofing process and may cause yarn breakage, so that the flameproofing treatment temperature must be lowered. .

また、特許文献２に開示された技術では、糸把持手段間に交絡手段が設けられ、さらに、交絡手段の両側に揺動による糸弛緩手段により個々に弛み代を設けられるようになっているが、個々に把持手段や糸弛緩手段が設けられているため、複数個の交絡を必要とする場合には装置が大型化するという課題がある。   In the technique disclosed in Patent Document 2, entanglement means are provided between the yarn gripping means, and further, slack allowances are individually provided on both sides of the entanglement means by the yarn relaxation means by swinging. Since the gripping means and the yarn relaxing means are individually provided, there is a problem that the apparatus becomes large when a plurality of entanglements are required.

さらに、特許文献３に開示された技術では、ニップ間を近接させることにより糸を弛緩させ、そして、絡合ノズルが移動して繊維糸条の端部同士を交絡させるため、絡合ノズルから流体を噴射させた初期には多くの交絡部分が形成され、その後徐々に交絡形成が減少してしまう。このため、繊維糸条の交絡部分が全体的に不揃いとなり、十分な糸継ぎ効果が得られないとい課題がある。また、局部的に糸条密度の高い部分ができ、耐炎化工程中にその高密度部分が蓄熱し、糸切れを起こすおそれがあるため、耐炎化処理温度を低下させなければならないという課題がある。   Furthermore, in the technique disclosed in Patent Document 3, the yarn is relaxed by bringing the nips close to each other, and the entanglement nozzle moves to entangle the ends of the fiber yarns. Many entangled portions are formed at the initial stage of spraying, and then entanglement formation gradually decreases. For this reason, the entangled portions of the fiber yarns become uneven as a whole, and there is a problem that a sufficient splicing effect cannot be obtained. In addition, there is a problem in that a portion having a high yarn density is locally formed and the high-density portion accumulates heat during the flameproofing process and may cause yarn breakage, so that the flameproofing treatment temperature must be lowered. .

そして、特許文献４に開示された技術では、糸把持するニップ間に複数個の交絡手段を配置しているが、糸把持装置を近接することにより糸を弛緩させ、複数個の交絡手段により同時に交絡させるため、個々の交絡が不揃いとなり、交絡個数分の糸継ぎ効果が得られず、必要以上に交絡個数を増加させなければならないという課題がある。   In the technique disclosed in Patent Document 4, a plurality of entanglement means are arranged between the nips for gripping the yarn. However, the yarn is relaxed by bringing the yarn gripping device close to the nip, and the plurality of entanglement means simultaneously. In order to entangle, the individual entanglement becomes uneven, the splicing effect for the number of entanglements cannot be obtained, and there is a problem that the number of entanglements must be increased more than necessary.

そこで、この発明は、上述した事情に鑑みてなされたものであって、繊維糸条同士を均一に交絡させることで耐炎化工程中の繊維糸条の糸切れを防止し、耐炎化処理温度の低下幅を小さくすることができる糸継ぎ装置及び糸継ぎ方法を提供するものである。
また、小型で、繊維糸条同士を均一に交絡させることができ、少ない交絡個数で十分な糸継ぎ効果を得ることができる糸継ぎ装置及び糸継ぎ方法を提供するものである。 Therefore, the present invention has been made in view of the above-described circumstances, and prevents yarn breakage of the fiber yarns during the flameproofing process by uniformly entangling the fiber yarns. A yarn splicing device and a yarn splicing method capable of reducing the drop width are provided.
Further, the present invention provides a yarn splicing device and a splicing method that are small in size and capable of uniformly entanglement of fiber yarns and can obtain a sufficient splicing effect with a small number of entanglements.

上記の課題を解決するために、本発明は、二本の繊維糸条の一部を重ね合わせ、この重ね合わせた部分を前後で挟持する一対の糸条挟持部を近接可能に設け、前記糸条挟持部間に前記繊維糸条の重ね合わせた部分を保持した状態で圧縮流体を噴射して交絡させる交絡装置を少なくとも三つ配置し、各交絡装置に隣接して前記糸条挟持部の近接時に各交絡装置に保持された繊維糸条の重ね合わせた部分に弛緩量を付与する重錘を着脱可能に設けたことを特徴とする。
この場合、前記交絡装置間の間隔が３０〜７０ｍｍに設定され、前記弛緩量が１〜５ｍｍに設定されていてもよい。 In order to solve the above-described problem, the present invention provides a pair of yarn clamping portions that overlap a part of two fiber yarns and clamp the overlapped portion in the front and rear directions so as to be close to each other. At least three entanglement devices for injecting and entangled compressed fluid in a state where the overlapping portions of the fiber yarns are held between the strip pinching portions are arranged, and adjacent to the yarn pinching portions adjacent to each confounding device In some cases, a weight for imparting a relaxation amount is detachably provided on the overlapped portion of the fiber yarns held in each entanglement device.
In this case, the interval between the entanglement devices may be set to 30 to 70 mm, and the relaxation amount may be set to 1 to 5 mm.

また、本発明は、前記繊維糸条は複数の小トウに幅方向に分割可能に束ねられた集合トウであって、前記交絡装置には分割された各小トウ同士を幅方向で間隔をおいて保持する小トウ保持部が設けられていることを特徴とする。
この場合、前記小トウ保持部に前記小トウのうち一方の小トウの終端部と前記小トウのうち他方の小トウの始端部とが重ね合わせた状態で保持されていてもよいし、さらに、前記一方の小トウの終端部と前記他方の小トウの始端部とを予め耐炎化処理してもよい。 Further, the present invention is an aggregate tow in which the fiber yarn is bundled in a plurality of small tows so as to be capable of being divided in the width direction, and the small tows are spaced apart in the width direction in the entanglement device. And a small toe holding portion is provided.
In this case, the end portion of one small tow among the small tows and the start end portion of the other small tow among the small tows may be held in the small tow holding portion, The end portion of the one small tow and the start end of the other small tow may be subjected to a flame resistance treatment in advance.

そして、本発明は、二本の繊維糸条の一部を重ね合わせ、糸条挟持部によってこの重ね合わせた部分を前後で挟持し、この糸条挟持部間に前記繊維糸条の重ね合わせた部分を保持した状態で圧縮流体を噴射して交絡させる交絡装置を少なくとも三つ配置し、前記交絡装置の各々に隣接した部位に重錘により外力を付与した状態で各交絡装置に保持された前記繊維糸条の重ね合わせた部分を弛緩し、その後、重錘による外力の付与を解除し、これにより各交絡装置近傍に形成された弛緩部分を弛緩量として各交絡装置により前記繊維糸条を交絡することを特徴とする。   And this invention overlaps a part of two fiber yarns, pinched this overlapped part by the yarn pinching part back and forth, and piled the fiber yarns between the yarn pinching parts At least three entanglement devices that inject and entangle the compressed fluid in a state where the portion is held are arranged, and the entanglement device is held by each entanglement device in a state where an external force is applied to a portion adjacent to each of the entanglement devices by a weight. Loosen the overlapped part of the fiber yarn, and then release the external force applied by the weight, thereby entangle the fiber yarn by each entanglement device with the relaxation part formed in the vicinity of each entanglement device as the amount of relaxation It is characterized by doing.

本発明によれば、交絡装置毎に一つの重錘を設け、一対の糸条挟持部を設ければよいため、糸継ぎ装置全体を小型化することができる。
また、各交絡装置に保持された繊維糸条の重ね合わせた部分に弛緩量を付与する重錘がそれぞれ設けられているため、交絡装置毎の弛緩量を一定に保ちつつ、交絡装置毎に繊維糸条を交絡させることができる。よって、繊維糸条を確実に交絡させることができ、少ない交絡個数で十分な糸継ぎ効果を得ることができる。また、各交絡部を均一にすることができるため、耐炎化工程中の繊維糸条の糸切れを防止し、耐炎化処理温度の低下幅を小さくすることができる。 According to the present invention, since only one weight is provided for each entanglement device and a pair of yarn clamping portions is provided, the entire yarn splicing device can be reduced in size.
In addition, since the weights for imparting the relaxation amount are provided to the overlapped portions of the fiber yarns held in each entanglement device, the fiber for each entanglement device is kept constant while keeping the relaxation amount for each entanglement device constant. Yarns can be entangled. Accordingly, the fiber yarns can be reliably entangled, and a sufficient splicing effect can be obtained with a small number of entanglements. Moreover, since each entangled part can be made uniform, the yarn breakage of the fiber yarn during the flameproofing process can be prevented, and the decrease width of the flameproofing treatment temperature can be reduced.

とりわけ、複数の小トウに幅方向に分割可能に束ねられた集合トウにあっては、交絡装置に、各小トウ同士を幅方向で間隔をおいて保持する小トウ保持部が設けられているため、分割した小トウ毎の一方の始端部と他方の終端部とを確実に交絡させることができる。   Particularly, in a collective tow that is bundled in a plurality of small tows so as to be divided in the width direction, the entanglement device is provided with a small tow holding portion that holds the small tows at intervals in the width direction. Therefore, one start end and the other end of each divided small tow can be reliably entangled.

次に、この発明の実施形態を図面に基づいて説明する。
図１〜図８は、本発明に係る糸継ぎ装置１を示すものであって、操作手順に沿って順番に配列している。尚、以下の説明に用いる各図面では、各部材を認識可能な大きさとするため、各部材の縮尺を適宜変更している。
図１に示すように、糸継ぎ装置１は、一対の挟持部３，４を備えている。この挟持部３，４は、一方の集合トウ２ａの終端部と他方の集合トウ２ｂの始端部とのそれぞれ重ね合わせた部分を前後で挟持するものであって、一方の挟持部３が他方の挟持部４に対して近接可能に設けられている。挟持部３，４は、それぞれ二つの挟持部材３ａ，３ｂ，４ａ，４ｂからなり、一方の挟持部材３ａ，４ａが上下方向に当接、離反可能に設けられている。これら挟持部材３ａ，４ａ間、挟持部材３ｂ、４ｂ間に集合トウ２ａ，２ｂが配索され、弛みのない状態で挟持部３，４に挟持されるようになっている。 Next, embodiments of the present invention will be described with reference to the drawings.
1 to 8 show a yarn splicing device 1 according to the present invention, which are arranged in order according to an operation procedure. In each drawing used in the following description, the scale of each member is appropriately changed to make each member a recognizable size.
As shown in FIG. 1, the yarn splicing device 1 includes a pair of clamping portions 3 and 4. The sandwiching portions 3 and 4 sandwich the overlapping portions of the end portion of one collective tow 2a and the start end portion of the other collective tow 2b in the front-rear direction. It is provided so as to be close to the sandwiching portion 4. The clamping parts 3 and 4 are each composed of two clamping members 3a, 3b, 4a and 4b, and one clamping member 3a and 4a are provided so as to be able to contact and separate in the vertical direction. The collective tows 2a and 2b are routed between the sandwiching members 3a and 4a and between the sandwiching members 3b and 4b, and are sandwiched between the sandwiching portions 3 and 4 without any slack.

集合トウ２ａ，２ｂは、小トウ５ａ，５ｂをそれぞれ幅方向に分割可能に複数個並列して束ねられたものであり、図に示した集合トウ２ａ，２ｂは、小トウ５ａ，５ｂをそれぞれの幅方向に分割可能に３個並列して束ねられたものである。この集合トウ２ａ，２ｂとしては、通常アクリル系繊維糸条が用いられる。このアクリル系繊維糸条は、アクリロニトリルを主成分として含有するアクリル繊維であれば特に限定されるものでないが、アクリロニトリル単位８５％質量以上、より好ましくは９０％以上を含有するアクリロニトリル系重合体を使用するアクリル繊維であることが好ましい。このアクリロニトリル系重合体としては、アクリロニトリルの単独重合体、又は共重合体、或いはこれらの重合体の混合重合体を使用し得る。さらに、アクリロニトリル系重合体はアクリロニトリルと共重合しうる単量体とアクリロニトリルの共重合成生成物であり、アクリロニトリルと共重合しうる単量体としては、メチル（メタ）アクリレート、エチル（メタ）アクリレート、プロピル（メタ）アクリレート、ブチル（メタ）アクリレート、ヘキシル（メタ）アクリレート等の（メタ）アクリル酸エステル類、塩化ビニル、臭化ビニル、塩化ビニリデン等のハロゲン化ビニル類、（メタ）アクリル酸、イタコン酸、クロトン酸等の酸類、及びそれらの塩類や、マレイン酸イミド、フェニルマレイミド、（メタ）アクリルアミド、スチレン、α−メチルスチレン、酢酸ビニル、スチレンスルホン酸ソーダ、アリルスルホン酸ソーダ、β−スチレンスルホン酸ソーダ、メタアリルスルホン酸ソーダ等のスルホン基を含む重合性不飽和単量体、２−ビニルピリジン、２−メチル−５−ビニルピリジン等のピリジン基を含む重合性不飽和単量体等が挙げられるが、これらに限定されるものではない。   The collective tows 2a and 2b are obtained by bundling a plurality of small tows 5a and 5b so as to be divided in the width direction. The collective tows 2a and 2b shown in FIG. Are bundled in parallel so that they can be divided in the width direction. As the collective tows 2a and 2b, acrylic fiber yarns are usually used. The acrylic fiber yarn is not particularly limited as long as it is an acrylic fiber containing acrylonitrile as a main component, but an acrylonitrile polymer containing 85% by mass or more of acrylonitrile units, more preferably 90% or more is used. Acrylic fiber is preferred. As this acrylonitrile-based polymer, a homopolymer or copolymer of acrylonitrile, or a mixed polymer of these polymers can be used. Furthermore, the acrylonitrile polymer is a copolymer of acrylonitrile and a monomer that can be copolymerized with acrylonitrile. Examples of monomers that can be copolymerized with acrylonitrile include methyl (meth) acrylate and ethyl (meth) acrylate. , (Meth) acrylic acid esters such as propyl (meth) acrylate, butyl (meth) acrylate, hexyl (meth) acrylate, vinyl halides such as vinyl chloride, vinyl bromide, vinylidene chloride, (meth) acrylic acid, Acids such as itaconic acid and crotonic acid, and salts thereof, maleic imide, phenylmaleimide, (meth) acrylamide, styrene, α-methylstyrene, vinyl acetate, sodium styrene sulfonate, sodium allyl sulfonate, β-styrene Sodium sulfonate, methallyl sulfo Examples thereof include polymerizable unsaturated monomers containing a sulfone group such as sodium acid acid, and polymerizable unsaturated monomers containing a pyridine group such as 2-vinylpyridine and 2-methyl-5-vinylpyridine. It is not limited to.

挟持部３，４間には、集合トウ２ａ，２ｂの長手方向に沿うように交絡装置７ａ，７ｂ，７ｃが三箇所等間隔に設けられている。
交絡装置７ａ，７ｂ，７ｃは、集合トウ２ａ，２ｂの重ね合わせた部分を保持して交絡させるためのものである。尚、以下の説明において、交絡装置７ａに保持された集合トウ２ａ，２ｂの重ね合わせた部分を交絡部６ａ、交絡装置７ｂに保持された集合トウ２ａ，２ｂの重ね合わせた部分を交絡部６ｂ、交絡装置７ｃに保持された集合トウ２ａ，２ｂの重ね合わせた部分を交絡部６ｃという。 Between the sandwiching portions 3 and 4, entanglement devices 7a, 7b and 7c are provided at equal intervals along the longitudinal direction of the collective tows 2a and 2b.
The entanglement devices 7a, 7b, 7c are for holding and overlapping the overlapping portions of the collective tows 2a, 2b. In the following description, the overlapped portion of the collective tows 2a, 2b held by the confounding device 7a is the confounding portion 6a, and the overlapped portion of the collective tows 2a, 2b held by the confounding device 7b is the confounding portion 6b. The overlapping portion of the collective tows 2a and 2b held by the confounding device 7c is referred to as a confounding portion 6c.

図１０に示すように、交絡装置７ａ，７ｂ，７ｃは、圧縮流体である圧縮空気等を噴射する第一ノズル８と第二ノズル９とを備え、各々第一ノズル８と第二ノズル９とが重ね合わさっている。集合トウ２ａ，２ｂの各交絡部６ａ，６ｂ，６ｃは、この第一ノズル８と第二ノズル９との間に分割された状態（小トウ５ａ，５ｂ毎の状態）でそれぞれ収容されるようになっている。
第一ノズル８は、その内部に圧縮空気が導入される通路１０が形成されている。第一ノズル８の一側面には、この通路１０に連通する圧縮空気導入口１２が設けられ、この圧縮空気導入口１２が不図示の圧縮機に接続されている。 As shown in FIG. 10, the entanglement devices 7a, 7b, and 7c include a first nozzle 8 and a second nozzle 9 that inject compressed air or the like that is a compressed fluid, and the first nozzle 8 and the second nozzle 9 respectively. Are superimposed. The interlaced portions 6a, 6b, 6c of the collective tows 2a, 2b are accommodated in a state of being divided between the first nozzle 8 and the second nozzle 9 (a state for each of the small tows 5a, 5b). It has become.
The first nozzle 8 has a passage 10 into which compressed air is introduced. A compressed air introduction port 12 communicating with the passage 10 is provided on one side surface of the first nozzle 8, and the compressed air introduction port 12 is connected to a compressor (not shown).

第一ノズル８の第二ノズル９との合わせ面１４には、各小トウ５ａ，５ｂを収容して保持する小トウ保持部１５，１５，１５が小トウ５ａ，５ｂの個数に対応するように間隔をあけて三箇所形成されている。各小トウ保持部１５は凹状であって、小トウ５ａ，５ｂの長手方向に沿うように形成されており、それぞれ側面１６と底面１７とを有している。
この底面１７と通路１０との間には複数の細孔１８が幅方向に沿うように等間隔に一列で形成されている。これら細孔１８から圧縮空気が第二ノズル９側に向って噴射するようになっている。 On the mating surface 14 of the first nozzle 8 with the second nozzle 9, the small tow holding portions 15, 15, 15 for receiving and holding the small tows 5 a, 5 b correspond to the number of the small tows 5 a, 5 b. Three places are formed at intervals. Each small toe holding part 15 is concave and is formed along the longitudinal direction of the small tows 5a and 5b, and has a side surface 16 and a bottom surface 17, respectively.
Between the bottom surface 17 and the passage 10, a plurality of pores 18 are formed in a line at equal intervals so as to extend along the width direction. Compressed air is jetted from these pores 18 toward the second nozzle 9 side.

尚、ここでは、それぞれ小トウ保持部１５の側面１６の高さＨは２．５ｍｍ、側面１６間の幅Ｗは１９ｍｍに設定され、細孔１８と後述する細孔２０の径はφ０．５ｍｍ、それぞれ細孔１８の間隔Ｘは０．８ｍｍに設定されている。
また、側面１６間の幅Ｗは、０．００２ｍｍ／ｔｅｘから０．００５ｍｍ／ｔｅｘであることが好ましい。側面１６間の幅Ｗが０．００２ｍｍ／ｔｅｘより小さい場合には、小トウ５ａ，５ｂを挟持部３，４に挟持させる際に捩れが生じやすい。このため、耐炎化工程で集合トウ２ａ，２ｂが捩れによりその厚みが厚くなり蓄熱しやすく、集合トウ２ａ，２ｂが破断や焼き切れを起こしやすくなるので好ましくない。また、側面１６間の幅Ｗが０．００５ｍｍ／ｔｅｘより大きい場合には、小トウ５ａ，５ｂを開繊するのが困難となり、接続部（交絡部）でのムラが発生し、接続強度が低下するために好ましくない。集合トウ２ａ，２ｂのトウ幅ＷＡは、側面１６の幅Ｗの小トウ５ａ，５ｂの本数分の幅と小トウ保持部１５の側面１６間の壁幅を足したものとなっている。 Here, the height H of the side surface 16 of the small toe holding part 15 is set to 2.5 mm, the width W between the side surfaces 16 is set to 19 mm, and the diameter of the pore 18 and the pore 20 described later is φ0.5 mm. The interval X between the pores 18 is set to 0.8 mm.
The width W between the side surfaces 16 is preferably 0.002 mm / tex to 0.005 mm / tex. When the width W between the side surfaces 16 is smaller than 0.002 mm / tex, twisting tends to occur when the small tows 5 a and 5 b are sandwiched between the sandwiching portions 3 and 4. For this reason, in the flameproofing process, the collective tows 2a and 2b are twisted to increase their thickness and easily store heat, and the collective tows 2a and 2b are liable to break or burn out, which is not preferable. In addition, when the width W between the side surfaces 16 is larger than 0.005 mm / tex, it is difficult to open the small tows 5a and 5b, unevenness occurs at the connecting portion (entangled portion), and the connection strength is increased. Since it falls, it is not preferable. The toe width WA of the collective tows 2a and 2b is the sum of the width of the small tows 5a and 5b having the width W of the side surface 16 and the wall width between the side surfaces 16 of the small toe holding portion 15.

第二ノズル９は、第一ノズル８の各小トウ保持部１５を覆うように第一ノズル８にセットされている。第二ノズル９は、第一ノズル８と同様にその内部に圧縮空気が導入される通路１１がそれぞれ形成されている。第二ノズル９の一側面には、この通路１１に連通する圧縮空気導入口１３が設けられ、これら圧縮空気導入口１３が不図示の圧縮機に接続されている。
第二ノズル９の第一ノズル８との合わせ面１９と通路１１との間には複数の細孔２０が第一ノズル８に形成されている細孔１８に対応する部分に形成されている。これら細孔２０から圧縮空気が第一ノズル８側に向って噴射するようになっている。 The second nozzle 9 is set to the first nozzle 8 so as to cover each small toe holding part 15 of the first nozzle 8. Similarly to the first nozzle 8, the second nozzle 9 has a passage 11 into which compressed air is introduced. A compressed air introduction port 13 communicating with the passage 11 is provided on one side surface of the second nozzle 9, and these compressed air introduction ports 13 are connected to a compressor (not shown).
A plurality of pores 20 are formed in portions corresponding to the pores 18 formed in the first nozzle 8 between the mating surface 19 of the second nozzle 9 with the first nozzle 8 and the passage 11. Compressed air is jetted from these pores 20 toward the first nozzle 8 side.

したがって、一方の集合トウ２ａの終端部と他方の集合トウ２ｂの始端部は、一方の小トウ５ａの終端部と他方の小トウ５ｂの始端部とが各々重ね合わせた状態で小トウ保持部１５に収容され、小トウ保持部１５の側面１６と底面１７及び第二ノズル９の合わせ面１９とで周囲を略矩形状に囲まれた状態で小トウ保持部１５毎に各ノズル８，９によって扁平状に交絡される（糸継ぎされる）ようになっている。
ここで、それぞれ交絡装置７ａ，７ｂ，７ｃ間の間隔Ｌ１（図１参照）は、３０〜７０ｍｍであることが望ましい。間隔Ｌ１が３０ｍｍ未満では、各交絡部６ａ，６ｂ，６ｃがそれぞれ重なってしまい、十分な糸継ぎ効果が得られないおそれがある。一方、間隔Ｌ１が７０ｍｍを超えると必要以上に接続長さ（糸継ぎ長さ）を延ばし、接続部の接続低下、作業性の低下を伴い、接続するための装置（糸継ぎ装置１）が大きくなるため好ましくない。 Accordingly, the end portion of the one collective tow 2a and the start end portion of the other collective tow 2b are arranged in a state where the end portion of one small tow 5a and the start end portion of the other small tow 5b are overlapped with each other. 15, and each nozzle 8, 9 is provided for each small toe holding part 15 in a state in which the periphery is surrounded by a side face 16 and a bottom face 17 of the small toe holding part 15 and a mating face 19 of the second nozzle 9. Are entangled in a flat shape (yielded).
Here, the distance L1 (see FIG. 1) between the entanglement devices 7a, 7b, and 7c is preferably 30 to 70 mm. When the distance L1 is less than 30 mm, the entangled portions 6a, 6b, and 6c are overlapped with each other, and there is a possibility that a sufficient splicing effect cannot be obtained. On the other hand, when the distance L1 exceeds 70 mm, the connection length (yarn splicing length) is unnecessarily extended, and the connection device (yarn splicing device 1) is greatly connected with a decrease in connection and a decrease in workability. Therefore, it is not preferable.

図１に示すように、各交絡装置７ａ，７ｂ，７ｃの近傍には、弛緩部２１ａ，２１ｂ，２１ｃが設けられている。弛緩部２１ａ，２１ｂ，２１ｃは、各交絡装置７ａ，７ｂ，７ｃ毎に集合トウ２ａ，２ｂの各交絡部６ａ，６ｂ，６ｃの近傍に弛緩部分を形成するためのものであって、それぞれ断面略矩形のベース部材２２と重錘２３とで構成され、重錘２３がベース部材２２に対して上下方向に着脱自在になっている。ベース部材２２は、各交絡部６ａ，６ｂ，６ｃの弛緩量を決定するものであって、集合トウ２ａ，２ｂの下方に一定の間隔ｄをあけて配置されている。   As shown in FIG. 1, relaxation portions 21a, 21b, and 21c are provided in the vicinity of the entanglement devices 7a, 7b, and 7c. The relaxing portions 21a, 21b, and 21c are for forming relaxing portions in the vicinity of the entangled portions 6a, 6b, and 6c of the collective tows 2a and 2b for each of the entangled devices 7a, 7b, and 7c. The base member 22 is composed of a substantially rectangular base member 22 and a weight 23, and the weight 23 is detachable from the base member 22 in the vertical direction. The base member 22 determines the amount of relaxation of the entangled portions 6a, 6b, and 6c, and is disposed below the collective tows 2a and 2b with a constant interval d.

そして、重錘２３を集合トウ２ａ，２ｂの上部からベース部材２２に装着すると、集合トウ２ａ，２ｂの各交絡部６ａ，６ｂ，６ｃの近傍は、重錘２３の重みによってベース部材２２の上面まで弛緩され弛緩部分を形成する（図２参照）。つまり、集合トウ２ａ，２ｂとベース部材２２との間に予め設けられている間隔ｄによって各交絡部６ａ，６ｂ，６ｃの弛緩量が決定し、重錘２３によって弛緩部分を形成するようになっている。
尚、弛緩部２１ａは交絡装置７ａに対応する交絡部６ａの近傍に、弛緩部２１ｂは交絡装置７ｂに対応する交絡部６ｂの近傍に、弛緩部２１ｃは交絡装置７ｃに対応する交絡部６ｃの近傍に弛緩部分を形成するようになっている。 When the weight 23 is attached to the base member 22 from the upper part of the collective tows 2a, 2b, the vicinity of the entangled portions 6a, 6b, 6c of the collective tows 2a, 2b is the upper surface of the base member 22 by the weight of the weight 23. To relax to form a relaxed part (see FIG. 2). That is, the amount of relaxation of the entangled portions 6a, 6b, 6c is determined by the distance d provided in advance between the collective tows 2a, 2b and the base member 22, and the weight 23 forms a relaxed portion. ing.
The relaxing part 21a is in the vicinity of the entangled part 6a corresponding to the entangled apparatus 7a, the relaxing part 21b is in the vicinity of the entangled part 6b corresponding to the entangled apparatus 7b, and the relaxing part 21c is in the entangled part 6c corresponding to the entangled apparatus 7c. A relaxation portion is formed in the vicinity.

図２に示すように、一方の挟持部３は、それぞれ交絡装置７ａ，７ｂ，７ｃ毎の各交絡部６ａ，６ｂ，６ｃの弛緩量に基づいて他方の挟持部４側に向って（矢印Ｂ方向に向って）移動する。この挟持部３の移動距離（弛緩量）Ｌ２は、交絡部一つあたり１〜５ｍｍが好ましい。尚、交絡部一つあたりの移動距離が１ｍｍ未満の場合では交絡が十分でなく糸継ぎ効果が得られない。一方、交絡部一つあたりの移動距離が５ｍｍを超える場合では交絡させた交絡部の厚みが厚くなり、例えば、耐炎化工程中にその交絡部が蓄熱しやすくなり破断や焼き切れを起こすおそれがあるため、好ましくない。すなわち、本実施形態においては、交絡装置によって交絡させる箇所が三箇所である（交絡部が三つである）ため、移動距離Ｌ２は、３〜１５ｍｍであることが好ましい。   As shown in FIG. 2, one clamping part 3 is directed toward the other clamping part 4 side based on the amount of relaxation of each entanglement part 6a, 6b, 6c for each of the entanglement devices 7a, 7b, 7c (arrow B). Move in the direction). The moving distance (relaxation amount) L2 of the clamping part 3 is preferably 1 to 5 mm per entangled part. When the moving distance per entangled portion is less than 1 mm, the entanglement is not sufficient and the piecing effect cannot be obtained. On the other hand, when the moving distance per entangled part exceeds 5 mm, the thickness of the entangled part becomes thick, for example, the entangled part is likely to store heat during the flameproofing process, and may break or burn out. This is not preferable. That is, in this embodiment, since there are three places to be entangled by the entanglement device (there are three entangled portions), the moving distance L2 is preferably 3 to 15 mm.

次に、糸継ぎ装置１の糸継ぎ動作について図１〜図８に基づいて説明する。
まず、図１に示すように、一方の集合トウ２ａの終端部と、他方の集合トウ２ｂの始端部とを分割（本実施形態においては三分割）し、それぞれ小トウ５ａ，５ｂの幅を引き揃える。そして、一方の小トウ５ａの終端部と、他方の小トウ５ｂの始端部とをそれぞれ重ね合わせ、弛みのない状態にしてその重ね合わせた部分を前後で挟持する。尚、それぞれ小トウ５ａの終端部と小トウ５ｂの始端部は、予め耐炎化処理されている。 Next, the yarn joining operation of the yarn joining device 1 will be described with reference to FIGS.
First, as shown in FIG. 1, the end portion of one collective tow 2a and the start end portion of the other collective tow 2b are divided (in this embodiment, three divisions), and the widths of the small tows 5a and 5b are respectively increased. Align. Then, the end portion of one small tow 5a and the start end portion of the other small tow 5b are respectively overlapped, and the overlapped portion is sandwiched between the front and the back so as not to be loose. Note that the end portion of the small tow 5a and the start end of the small tow 5b are preliminarily flameproofed.

次に、挟持部３，４間に設置されている交絡装置７ａ，７ｂ，７ｃに各小トウ５ａ，５ｂをセットする。セットの方法としては、交絡装置７ａ，７ｂ，７ｃの第一ノズル８に形成されている小トウ保持部１５にそれぞれ小トウ５ａ，５ｂを収容し、その後第二ノズル９を第一ノズル８に重ね合わせて固定する。
次に、図２に示すように、各交絡装置７ａ，７ｂ，７ｃに隣接して設けられている弛緩部２１ａ，２１ｂ，２１ｃによって各交絡部６ａ，６ｂ，６ｃの近傍にそれぞれ弛緩部分を形成する。具体的には、弛緩部２１ａ，２１ｂ，２１ｃの重錘２３を用いて小トウ５ａ，５ｂをその重錘２３の重みでベース部材２２の上面まで弛ませる。
すると、一方の挟持部３が各交絡部６ａ，６ｂ，６ｃの弛緩量に基づいて他方の挟持部４側に向って（矢印Ｂ方向に向って）移動する（移動距離Ｌ２）。 Next, the small tows 5a, 5b are set in the entanglement devices 7a, 7b, 7c installed between the sandwiching portions 3, 4. As a setting method, the small tows 5a and 5b are accommodated in the small tow holding portions 15 formed in the first nozzle 8 of the entanglement devices 7a, 7b and 7c, respectively, and then the second nozzle 9 is used as the first nozzle 8. Overlay and fix.
Next, as shown in FIG. 2, the relaxing portions 21a, 21b, and 21c provided adjacent to the entanglement devices 7a, 7b, and 7c form relaxation portions in the vicinity of the entangled portions 6a, 6b, and 6c, respectively. To do. Specifically, the small tows 5 a and 5 b are loosened up to the upper surface of the base member 22 by the weight of the weight 23 using the weight 23 of the relaxing portions 21 a, 21 b and 21 c.
Then, one clamping part 3 moves toward the other clamping part 4 side (in the direction of arrow B) based on the amount of relaxation of each interlaced part 6a, 6b, 6c (movement distance L2).

次に、図３に示すように、交絡装置７ａに対応する弛緩部２１ａの重錘２３を外す、そして交絡装置７ａの各ノズル８，９から圧縮空気を噴射する（図１０参照）。すると、交絡装置７ａ内に保持されている交絡部６ａが交絡され、弛緩部分がなくなる（図４参照）。
尚、圧縮空気のエア圧は、０．３〜０．６ＭＰａであることが好ましい。エア圧が０．３ＭＰａよりも低い場合は交絡が十分でないおそれがある。エア圧が０．６ＭＰａを超える場合は糸切れが生じるおそれがある。また、圧縮空気の噴射時間は５秒以上が好ましい。 Next, as shown in FIG. 3, the weight 23 of the relaxing portion 21a corresponding to the confounding device 7a is removed, and compressed air is injected from the nozzles 8 and 9 of the confounding device 7a (see FIG. 10). Then, the entanglement part 6a currently hold | maintained in the entanglement apparatus 7a is entangled, and a relaxation | loosening part is lose | eliminated (refer FIG. 4).
In addition, it is preferable that the air pressure of compressed air is 0.3-0.6 MPa. If the air pressure is lower than 0.3 MPa, confounding may not be sufficient. If the air pressure exceeds 0.6 MPa, thread breakage may occur. Further, the jet time of the compressed air is preferably 5 seconds or more.

次に、図５に示すように、交絡装置７ｂに対応する弛緩部２１ｂの重錘２３を外す、そして交絡装置７ｂの各ノズル８，９から圧縮空気を噴射する。すると、交絡装置７ｂに保持されている交絡部６ｂが交絡され、弛緩部分がなくなる（図６参照）。   Next, as shown in FIG. 5, the weight 23 of the relaxing portion 21b corresponding to the confounding device 7b is removed, and compressed air is injected from the nozzles 8 and 9 of the confounding device 7b. Then, the entanglement part 6b currently hold | maintained at the entanglement apparatus 7b is entangled, and a relaxation | loosening part is lose | eliminated (refer FIG. 6).

同様に、図７、図８に示すように、弛緩部２１ｃの重錘２３を外し、交絡装置７ｃによって交絡部６ｃを交絡する。
このようにして糸継ぎされた集合トウ２ａ，２ｂは、図９（ａ）、図９（ｂ）に示すように、各交絡装置７ａ，７ｂ，７ｃによって三箇所の各交絡部６ａ，６ｂ，６ｃがそれぞれ確実、且つ均一に交絡された状態になっている。 Similarly, as shown in FIGS. 7 and 8, the weight 23 of the relaxing portion 21c is removed, and the entangled portion 6c is entangled by the entanglement device 7c.
As shown in FIGS. 9 (a) and 9 (b), the collective tows 2a and 2b spliced in this way are each entangled with each of the three entangled portions 6a, 6b, Each of the 6c is surely and uniformly entangled.

次に、この発明の実施例と比較例を具体的に示して糸継ぎ方法を説明する。尚、本発明の実施例は以下に記載された事項によって限定されるものではない。
（実施例）
まず、単糸繊度１．２ｄＴｅｘ／フィラメント、フィラメント数５００００のアクリル繊維（小トウ）を三本集合させた集合トウ（フィラメント数１５００００）である炭素繊維前躯体を二つ用意し、一方の炭素繊維前躯体の終端部と、他方の炭素繊維前躯体の始端部とを耐炎化処理として２４０℃の熱風が循環している炉内で６．５ｍ／ｔｅｘの張力下で７０分処理を行い、密度１．３６ｇ／ｃｍ３とした。 Next, the embodiment of the present invention and a comparative example will be shown specifically to explain the yarn splicing method. In addition, the Example of this invention is not limited by the matter described below.
(Example)
First, two carbon fiber precursors that are aggregated tows (filament number: 150,000) in which three filament fibers of 1.2 dTex / filament and a number of filaments of 50000 are gathered are prepared. One carbon fiber The end portion of the precursor and the start end of the other carbon fiber precursor are treated as a flame resistant treatment in a furnace in which hot air at 240 ° C. is circulated for 70 minutes under a tension of 6.5 m / tex. The amount was 1.36 g / cm 3.

次に、一方の炭素繊維前躯体においては終端部の小トウのトウ幅を１７．５ｍｍに引き揃え、他方の炭素繊維前躯体においては始端部の小トウのトウ幅を１８ｍｍに引き揃え、それぞれを重ね合わせて糸継ぎ装置１の挟持部３，４によって弛みのないように挟持した。尚、この実施例においては、小トウの幅をそれぞれ１７．５ｍｍ、１８ｍｍとして、重ね合わせるそれぞれの小トウのトウ幅に多少の誤差（０．５ｍｍの誤差）がある場合について実施し、その誤差によって問題が発生するかどうかを確認したが、当然のことながらそれぞれのトウ幅は同等であることが望ましい。   Next, in one carbon fiber precursor, the toe width of the small tow at the terminal end is aligned to 17.5 mm, and in the other carbon fiber precursor, the tow width of the small tow at the start end is aligned to 18 mm, Were stacked and pinched by the pinching portions 3 and 4 of the yarn splicing device 1 so that there was no slack. In this embodiment, the small tow width is set to 17.5 mm and 18 mm, respectively, and the case where there is a slight error (0.5 mm error) in the tow width of each small tow to be overlapped is obtained. However, it is natural that each tow width should be the same.

次に、交絡装置の小トウ保持部１５（図１０参照）にそれぞれ小トウをセットし、弛緩部２１の重錘２３によって各小トウに弛緩部分を形成した。尚、この実施例においては交絡装置を５個設置し、それぞれ交絡装置間の間隔Ｌ１（図１参照）を６０ｍｍとした。また、弛緩箇所毎（交絡部一箇所あたり）の弛緩量を２ｍｍ、つまり、挟持部３の移動距離Ｌ２（図２参照）を２ｍｍ×５（交絡装置の数）＝１０ｍｍとした。
次に、第一ノズル８、第二ノズル９より０．５５ＭＰａの圧縮空気を５秒噴射させ、一方の炭素繊維前躯体の終端部と他方の炭素繊維前躯体の始端部とを扁平状に交絡させた。 Next, small tows were set in the small toe holding portions 15 (see FIG. 10) of the entanglement apparatus, and a relaxation portion was formed on each small toe by the weight 23 of the relaxation portion 21. In this example, five entanglement devices were installed, and the distance L1 (see FIG. 1) between the entanglement devices was 60 mm. In addition, the amount of relaxation for each relaxation portion (per one entangled portion) was 2 mm, that is, the moving distance L2 (see FIG. 2) of the sandwiching portion 3 was 2 mm × 5 (the number of entangled devices) = 10 mm.
Next, 0.55 MPa of compressed air is injected from the first nozzle 8 and the second nozzle 9 for 5 seconds, and the end portion of one carbon fiber precursor and the start end portion of the other carbon fiber precursor are entangled in a flat shape. I let you.

このように糸継ぎ（交絡）した炭素繊維前躯体を２２７〜２４８℃の熱風が循環している耐炎化炉にて工程張力が２４．５ｍＮ／ｔｅｘで６０分間の耐炎化処理し、３００〜６００℃、１１５０〜１２５０℃の温度分布を有する窒素雰囲気中で５ｍＮ／ｔｅｘ、１６ｍＮ／ｔｅｘで各１．５分間の炭素化処理を行い、工程通過性を確認した。その結果、それぞれ重ね合わせた小トウのトウ幅に多少の誤差がある場合であっても、糸の切断等はなかった。   The carbon fiber precursor thus spliced (entangled) is subjected to a flame resistance treatment at a process tension of 24.5 mN / tex for 60 minutes in a flame resistance furnace in which hot air of 227 to 248 ° C. circulates, and 300 to 600 Carbonization treatment was performed at 5 mN / tex and 16 mN / tex for 1.5 minutes in a nitrogen atmosphere having a temperature distribution of 1 ° C. and 1150 to 1250 ° C., and the process passability was confirmed. As a result, there was no yarn cutting or the like even when there were some errors in the tow widths of the small tows that were superimposed.

（比較例）
実施例に対して、弛緩箇所毎（交絡部一箇所あたり）の弛緩量を７ｍｍ、つまり、挟持部３の移動距離Ｌ２（図２参照）を７ｍｍ×５（交絡装置の数）＝３５ｍｍとし、それ以外の工程は、実施例と同様の条件とした。
その結果、各交絡装置における交絡部の弛緩量が多く、交絡部の厚みが厚くなり、耐炎化工程でスモークが発生し、糸が切断した。 (Comparative example)
For the embodiment, the amount of relaxation for each relaxation portion (per one entangled portion) is 7 mm, that is, the moving distance L2 (see FIG. 2) of the sandwiching portion 3 is 7 mm × 5 (number of entangled devices) = 35 mm, The other steps were the same as in the examples.
As a result, the amount of relaxation of the entangled portion in each entanglement device was large, the thickness of the entangled portion was increased, smoke was generated in the flameproofing process, and the yarn was cut.

したがって、上述の実施形態によれば、集合トウ２ａ，２ｂの小トウ５ａ，５ｂのフィラメント数が４８０００本以上の太い炭素繊維前躯体であっても、交絡装置７ａ，７ｂ，７ｃの小トウ保持部１５によって小トウ５ａ，５ｂ毎に均一に扁平状な交絡部を形成することができる。このため、例えば、耐炎化炉に炭素繊維前躯体を給糸する給糸工程と、耐炎化炉にて炭素繊維前躯体を耐炎化処理する耐炎化工程との間で小トウが捩れることを防止することができる。
また、小トウ保持部１５によって確実に小トウ５ａ，５ｂ毎に交絡することができるため、複数本に分割可能な糸（例えば、本実施形態の集合トウ２ａ，２ｂ）の糸継ぎ作業を迅速化させることができ、分割可能な糸での接続後（交絡後）の糸の長さの不揃いをなくすことができる。 Therefore, according to the above-described embodiment, even if the number of filaments of the small tows 5a, 5b of the collective tows 2a, 2b is 48000 or more, the small tow holding of the entanglement devices 7a, 7b, 7c The portion 15 can form an evenly flat entangled portion for each small tow 5a, 5b. For this reason, for example, a small tow is twisted between a yarn feeding process for feeding a carbon fiber precursor to a flameproofing furnace and a flameproofing process for flameproofing the carbon fiber precursor in a flameproofing furnace. Can be prevented.
Further, since the small tow holding portion 15 can reliably entangle each small tow 5a and 5b, the yarn splicing operation of the yarns that can be divided into a plurality of pieces (for example, the collect tows 2a and 2b of the present embodiment) can be performed quickly. It is possible to eliminate the unevenness of the lengths of the yarns after the connection with the separable yarns (after the entanglement).

さらに、交絡装置７ａ，７ｂ，７ｃ毎に弛緩部２１が設けられているため、交絡部６ａ，６ｂ，６ｃ毎に所定の弛緩量（交絡部一つあたり１〜５ｍｍ）を確保することができるため、それぞれ均一に交絡することができる。よって、耐炎化工程中の各交絡部６ａ，６ｂ，６ｃの蓄熱を防止し、糸切れを防止することができる。   Furthermore, since the relaxation part 21 is provided for each of the entanglement devices 7a, 7b, and 7c, a predetermined amount of relaxation (1 to 5 mm per entanglement part) can be ensured for each of the entanglement parts 6a, 6b, and 6c. Therefore, they can be entangled uniformly. Therefore, the heat storage of each entanglement part 6a, 6b, 6c during a flameproofing process can be prevented, and yarn breakage can be prevented.

そして、予め一方の小トウ５ａの終端部と他方の小トウ５ｂの始端部を耐炎化処理し、その後糸継ぎ装置１によって交絡させることで確実に耐炎化工程で破断や糸切れを起こすことなく耐炎化工程通過を可能にすることができる。よって、耐炎化処理温度を低下させる必要がなくなる。
また、それぞれの交絡装置７ａ，７ｂ，７ｃで確実、且つ均一な交絡部６ａ，６ｂ，６ｃを形成することができるため、少ない交絡個数で十分な糸継ぎ効果を得ることができると共に、交絡装置を複数個（本実施形態においては三個）配置した場合であっても、一対の挟持部３，４だけで集合トウ２ａ，２ｂを挟持するため、コンパクトで持ち運び可能な糸継ぎ装置１にすることができる。 Then, the end portion of one small tow 5a and the start end portion of the other small tow 5b are flameproofed in advance, and then entangled by the yarn splicing device 1 without causing breakage or breakage in the flameproofing process. The flameproofing process can be passed. Therefore, it is not necessary to lower the flameproofing treatment temperature.
In addition, each entanglement device 7a, 7b, 7c can form a reliable and uniform entanglement portion 6a, 6b, 6c, so that a sufficient piecing effect can be obtained with a small number of entanglements, and the entanglement device Even when a plurality of (three in this embodiment) are arranged, the collective tows 2a and 2b are held only by the pair of holding portions 3 and 4, so that the yarn splicing device 1 is compact and portable. be able to.

尚、本発明は上述した実施形態に限られるものではなく、本発明の趣旨を逸脱しない範囲において、上述した実施形態に種々の変更を加えたものを含む。
また、上述した実施形態では、例えば、挟持部３，４間に三つの交絡装置７ａ，７ｂ，７ｃを設置した場合について、さらに、上述した実施例では五つの交絡装置を設置した場合について説明したが、交絡装置の設置数は三つ以上であればよい。この場合、弛緩部の個数も交絡装置の設置数に対応する。 The present invention is not limited to the above-described embodiment, and includes various modifications made to the above-described embodiment without departing from the spirit of the present invention.
In the above-described embodiment, for example, the case where three interlace devices 7a, 7b, and 7c are installed between the sandwiching portions 3 and 4, and the case where five interlace devices are installed in the above-described embodiment have been described. However, the number of entanglement devices may be three or more. In this case, the number of relaxing portions also corresponds to the number of entanglement devices installed.

そして、上述した実施形態では、例えば、弛緩部２１ａ，２１ｂ，２１ｃが断面略矩形のベース部材２２と重錘２３とで構成されている場合について説明したが、集合トウ２ａ，２ｂの各交絡部６ａ，６ｂ，６ｃの弛緩量をそれぞれ一定にできれば重錘だけでもよい。
また、上述した実施形態では、例えば、弛緩部２１ａ，２１ｂ，２１ｃのベース部材２２と重錘２３が断面略矩形である場合について説明したが、集合トウ２ａ，２ｂの各交絡部６ａ，６ｂ，６ｃの近傍に弛緩部分を形成できる形状であればよい。 In the above-described embodiment, for example, the case where the relaxing portions 21a, 21b, and 21c are configured by the base member 22 having the substantially rectangular cross section and the weight 23 has been described. However, each entangled portion of the collective tows 2a and 2b If the amount of relaxation of 6a, 6b, and 6c can be made constant, only the weight may be used.
In the above-described embodiment, for example, the case where the base member 22 and the weight 23 of the relaxing portions 21a, 21b, and 21c are substantially rectangular in cross section has been described. However, the interlaced portions 6a, 6b, Any shape that can form a relaxed portion in the vicinity of 6c may be used.

さらに、上述した実施形態では、例えば、集合トウ２ａ，２ｂが小トウ５ａ，５ｂを三本束ねたものである場合について説明したが、小トウの数は三本に限らない。
そして、上述した実施形態では、例えば、交絡装置７ａ，７ｂ，７ｃの第一ノズル８，８，８に設けられている小トウ保持部１５の側面１６の高さＨが２．５ｍｍ、側面１６間の幅Ｗが１９ｍｍに設定され、細孔１８と後述する細孔２０の径がφ０．５ｍｍ、それぞれ細孔１８の間隔Ｘが０．８ｍｍに設定されている場合について説明したが、これらの形状に限らず、各小トウの間隔をおいて保持でき、各々小トウ同士を交絡させることができる形状であればよい。 Further, in the above-described embodiment, for example, the case where the collective tows 2a and 2b are bundles of three small tows 5a and 5b has been described, but the number of small tows is not limited to three.
In the above-described embodiment, for example, the height H of the side surface 16 of the small toe holding part 15 provided in the first nozzles 8, 8, 8 of the entanglement devices 7 a, 7 b, 7 c is 2.5 mm, and the side surface 16 The case where the width W between them is set to 19 mm, the diameter of the pores 18 and the pores 20 to be described later is set to φ0.5 mm, and the interval X between the pores 18 is set to 0.8 mm, respectively. The shape is not limited to the shape as long as the small tows can be held at intervals, and the small tows can be entangled with each other.

本発明の実施形態における糸継ぎ装置を示し、一方の集合トウの終端部と他方の集合トウの終端部とを重ね合わせて挟持し、交絡装置にセットした状態を示す平面図である。It is a top view which shows the yarn splicing apparatus in embodiment of this invention, overlap | superposed and pinched | stacks the terminal part of one collective tow, and the terminal part of the other collective tow, and set to the confounding apparatus. 本発明の実施形態における糸継ぎ装置を示し、弛緩部によって交絡装置近傍に弛緩部分を形成した状態を示す平面図である。It is a top view which shows the yarn splicing apparatus in embodiment of this invention, and shows the state which formed the relaxation part in the confounding apparatus vicinity by the relaxation part. 本発明の実施形態における糸継ぎ装置を示し、弛緩部の重錘を一つ外した状態を示す平面図である。It is a top view which shows the yarn splicing device in embodiment of this invention, and shows the state which removed one weight of the relaxation part. 本発明の実施形態における糸継ぎ装置を示し、交絡装置によって集合トウを一箇所交絡させた状態を示す平面図である。It is a top view which shows the yarn splicing apparatus in embodiment of this invention, and shows the state which made the gathering tow | entangle one place by the confounding apparatus. 本発明の実施形態における糸継ぎ装置を示し、弛緩部の重錘を二つ外した状態を示す平面図である。It is a top view which shows the yarn splicing device in embodiment of this invention, and shows the state which removed two weights of the relaxation part. 本発明の実施形態における糸継ぎ装置を示し、交絡装置によって集合トウを二箇所交絡させた状態を示す平面図である。It is a top view which shows the yarn splicing apparatus in embodiment of this invention, and shows the state which made the gathering tow | entangle two places by the confounding apparatus. 本発明の実施形態における糸継ぎ装置を示し、弛緩部の重錘を三つ外した状態を示す平面図である。It is a top view which shows the yarn splicing device in embodiment of this invention, and shows the state which removed three weights of the relaxation part. 本発明の実施形態における糸継ぎ装置を示し、交絡装置によって集合トウを三箇所交絡させた状態を示す平面図である。It is a top view which shows the yarn splicing apparatus in embodiment of this invention, and shows the state which gathered the collective tow | three places with the confounding apparatus. 本発明の実施形態における集合トウを示し、（ａ）は側面図、（ｂ）は平面図である。The gathering tow | toe in embodiment of this invention is shown, (a) is a side view, (b) is a top view. 本発明の実施形態における交絡装置の縦断面図である。It is a longitudinal cross-sectional view of the entanglement apparatus in embodiment of this invention.

符号の説明Explanation of symbols

１…糸継ぎ装置
２ａ…一方の集合トウ（繊維糸条）
２ｂ…他方の集合トウ（繊維糸条）
３，４…挟持部（糸条挟持部）
５ａ…一方の小トウ
５ｂ…他方の小トウ
６ａ，６ｂ，６ｃ…交絡部
７ａ，７ｂ，７ｃ…交絡装置
１５…小トウ保持部
２１ａ，２１ｂ，２１ｃ…弛緩部
２２…ベース部材
２３…重錘
Ｌ１…交絡装置間の間隔
Ｌ２…移動距離（弛緩量） DESCRIPTION OF SYMBOLS 1 ... Yarn splicing device 2a ... One set tow (fiber yarn)
2b ... The other set tow (fiber yarn)
3, 4 ... clamping part (yarn clamping part)
5a ... one small tow 5b ... the other small tows 6a, 6b, 6c ... entangled portions 7a, 7b, 7c ... entangled device 15 ... small toe holding portions 21a, 21b, 21c ... relaxed portion 22 ... base member 23 ... weight L1: Distance between the entanglement devices L2: Movement distance (relaxation amount)

Claims (6)

二本の繊維糸条の一部を重ね合わせ、この重ね合わせた部分を前後で挟持する一対の糸条挟持部を近接可能に設け、前記糸条挟持部間に前記繊維糸条の重ね合わせた部分を保持した状態で圧縮流体を噴射して交絡させる交絡装置を少なくとも三つ配置し、各交絡装置に隣接して前記糸条挟持部の近接時に各交絡装置に保持された繊維糸条の重ね合わせた部分に弛緩量を付与する重錘を着脱可能に設けたことを特徴とする糸継ぎ装置。   A part of two fiber yarns are overlapped, and a pair of yarn clamping parts for clamping the overlapped part in the front and back are provided so as to be close to each other, and the fiber yarns are overlapped between the yarn clamping parts. At least three entanglement devices for injecting and entangled the compressed fluid while holding the portion are arranged, and the fiber yarns held in each entanglement device are adjacent to each entanglement device and in the vicinity of the yarn clamping unit. A yarn splicing device characterized in that a weight for imparting a relaxation amount to a combined portion is detachably provided. 前記交絡装置間の間隔が３０〜７０ｍｍに設定され、前記弛緩量が１〜５ｍｍに設定されていることを特徴とする請求項１に記載の糸継ぎ装置。   2. The yarn splicing device according to claim 1, wherein an interval between the entanglement devices is set to 30 to 70 mm, and the relaxation amount is set to 1 to 5 mm. 前記繊維糸条は複数の小トウに幅方向に分割可能に束ねられた集合トウであって、前記交絡装置には分割された各小トウ同士を幅方向で間隔をおいて保持する小トウ保持部が設けられていることを特徴とする請求項１又は請求項２に記載の糸継ぎ装置。   The fiber yarn is a collective tow bundled in a plurality of small tows so as to be split in the width direction, and the entanglement device holds the small tows that are spaced apart from each other in the width direction. The yarn splicing device according to claim 1 or 2, wherein a portion is provided. 前記小トウ保持部に前記小トウのうち一方の小トウの終端部と前記小トウのうち他方の小トウの始端部とが重なり合った状態で保持されていることを特徴とする請求項３に記載の糸継ぎ装置。   The end portion of one small tow among the small tows and the start end portion of the other small tow among the small tows are held in the small tow holding portion in an overlapping state. The yarn splicing device described. 前記一方の小トウの終端部と前記他方の小トウの始端部とを予め耐炎化処理することを特徴とする請求項４に記載の糸継ぎ装置。   5. The yarn splicing device according to claim 4, wherein the end portion of the one small tow and the start end of the other small tow are subjected to a flame resistance treatment in advance. 二本の繊維糸条の一部を重ね合わせ、糸条挟持部によってこの重ね合わせた部分を前後で挟持し、この糸条挟持部間に前記繊維糸条の重ね合わせた部分を保持した状態で圧縮流体を噴射して交絡させる交絡装置を少なくとも三つ配置し、前記交絡装置の各々に隣接した部位に重錘により外力を付与した状態で各交絡装置に保持された前記繊維糸条の重ね合わせた部分を弛緩し、その後、重錘による外力の付与を解除し、これにより各交絡装置近傍に形成された弛緩部分を弛緩量として各交絡装置により前記繊維糸条を交絡することを特徴とする糸継ぎ方法。   In a state where a part of the two fiber yarns are overlapped, the overlapped portion is sandwiched between the front and rear by the yarn clamping portion, and the overlapped portion of the fiber yarn is held between the yarn clamping portions. Arrangement of at least three entanglement devices that inject and entangle compressed fluid, and superimpose the fiber yarns held in each entanglement device in a state where an external force is applied to a portion adjacent to each of the entanglement devices by a weight. And then entangle the fiber yarns with each entanglement device with the relaxation portion formed in the vicinity of each entanglement device as a relaxation amount. Yarn splicing method.

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