JPS5911696B2 - Method for producing core yarn using only staple fibers - Google Patents

Description

【発明の詳細な説明】 （発明の目的） 本発明は、粗糸の進行方向と逆方向に螺旋回転を与えら
れて噴出するジェット渦流の作用により、羊毛繊維等の
ステープル長繊維束に綿繊維等のステーブル短繊維を絡
み付け、両繊維の特質を兼備させたステーブル繊維のみ
によるコアヤーンの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Objective of the Invention) The present invention provides a method for attaching cotton fibers to staple long fiber bundles such as wool fibers by the action of a jet vortex flow that is given a spiral rotation in a direction opposite to the direction in which the rovings travel. The present invention relates to a method for producing a core yarn using only stable fibers that have the characteristics of both types of fibers by entwining stable short fibers such as .

（従来技術） 螺旋回転を与えられて噴出するジェット渦流の作用によ
り、仮撚のかかったステープル長繊維粗糸にステープル
短繊維粗糸を螺旋状に絡みつけて被覆する場合、ジェッ
ト渦流を粗糸の進行方向に加えると、粗糸の進行方向に
流れるジェット渦流の作用により、ブレイクされた短繊
維粗糸が下流側に流されて長繊維粗糸に円滑に絡みつか
ないという現象が生ずる。(Prior art) When a false twisted staple long fiber roving is coated with staple short fiber roving in a spiral manner by the action of a jet vortex ejected by being given a spiral rotation, the jet vortex is applied to the roving. When the short fiber roving is added to the traveling direction of the roving, the effect of the jet vortex flowing in the traveling direction of the roving causes a phenomenon in which the broken short fiber roving is swept downstream and cannot be smoothly entwined with the long fiber roving.

（発明の構成） 本発明は、長繊維紡績精紡機のドラフト装置と撚掛装置
との間に、吸引パイプとジェット渦流噴出用の内筒を備
えた仮撚パイプとを配設し、羊毛繊維等のステープル長
繊維粗糸と綿繊維等のステープル短繊維粗糸とを合体し
て吸引パイプ内に吸引し、仮撚パイプ内において両組糸
の進行方向と逆方向にジェット渦流に螺旋回転を与えて
噴出させ、仮撚のかかったステープル長繊維束にステー
ブル短繊維を絡み付けてコアヤーンを製造することを要
旨とするものである。(Structure of the Invention) The present invention provides a suction pipe and a false twisting pipe equipped with an inner cylinder for ejecting a jet vortex stream between the drafting device and the twisting device of a long fiber spinning machine, and The staple long fiber rovings such as cotton fibers and other staple short fiber rovings are combined and sucked into a suction pipe, and are spirally rotated in a jet vortex in the direction opposite to the traveling direction of both braided yarns in the false twisting pipe. The gist of this method is to produce a core yarn by intertwining stable short fibers with a false-twisted staple long fiber bundle.

以下本発明を実施する装置を図面により説明すると、第
１図及び第２図に於いて、ドラフト装置Ａは、バックロ
ーラ１，１とドラフトローラ２゜２との間に粗糸を十分
にドラフトできる長さを有するエプロン３．３を配設し
たもので、ドラフトローラ２，２と粗糸を引張り出す引
出ローラ４゜４との間に後述の吸引パイプＢ及び仮撚パ
イプＣとを連接して配設する。The apparatus for carrying out the present invention will be explained below with reference to the drawings. In Figs. 1 and 2, a drafting device A sufficiently drafts the roving between back rollers 1, 1 and draft rollers 2゜2. A suction pipe B and a false twisting pipe C, which will be described later, are connected between the draft rollers 2, 2 and a pull-out roller 4.4 that pulls out the roving. and arrange it.

吸引パイプＢは、有底円筒状の筒本体５の底板６にラッ
パγを取り付け、筒本体５の開口部に仮撚パイプＣと連
接する連接円板８を取り付け、筒本体５の底板６と連接
円板８とに内径２ｒｒｒＩｎ程度の粗糸流人孔９及び粗
糸通過孔１０をそれぞれ穿設し、筒本体５のほぼ中央に
該筒本体５内の空気を吸引する吸引口１１を取り付ける
。The suction pipe B has a wrapper γ attached to the bottom plate 6 of the cylinder body 5 having a bottomed cylindrical shape, and a connecting disk 8 connected to the false-twisted pipe C attached to the opening of the cylinder body 5. A roving flow hole 9 and a roving passage hole 10 each having an inner diameter of about 2 rrrIn are bored in the connecting disk 8, and a suction port 11 for sucking the air inside the cylinder body 5 is attached approximately in the center of the cylinder body 5. .

仮撚パイプＣば、有底円筒状の外筒１２に内径６ｗｎ程
度の円筒状の内筒１３を内装して連接円板８に取り付け
、外筒１２の底板１４に内径２ｒａｎ程度の粗糸流出孔
１５を穿設し、内筒１３に於ける底板１４近傍の円周方
向に多数個のジェット渦流噴出口１６，１６．・・・・
・・を第３図に示すように内筒１３の半径方向に対して
所定角度傾斜させて穿設し、連接円板８に当接する外筒
１２及び内筒１３の一部を切り欠いてジェット渦流流出
口１γを形成し、外周１２及び内筒１３の切欠き部に埋
栓１８を施して切欠き部の気密を保持し、外筒１２のほ
ぼ中央に圧縮空気流入口１９を取り付ける。In the false twisting pipe C, a cylindrical inner tube 13 with an inner diameter of about 6wn is installed inside a bottomed cylindrical outer tube 12 and attached to the connecting disk 8, and a roving with an inner diameter of about 2ran flows out to the bottom plate 14 of the outer tube 12. A hole 15 is bored, and a large number of jet vortex outlets 16, 16.・・・・・・
As shown in FIG. 3, the inner cylinder 13 is bored at a predetermined angle with respect to the radial direction, and a part of the outer cylinder 12 and inner cylinder 13 that contact the connecting disk 8 is cut out to form a jet. A vortex flow outlet 1γ is formed, a plug 18 is applied to the notch of the outer periphery 12 and the inner cylinder 13 to maintain airtightness of the notch, and a compressed air inlet 19 is attached approximately at the center of the outer cylinder 12.

これで外周１２の内周面と内筒１３の外周面とで圧縮空
気の収容室２０が形成される。In this way, the inner circumferential surface of the outer periphery 12 and the outer circumferential surface of the inner cylinder 13 form a compressed air storage chamber 20.

図中２１．２２は、各ステーブル繊維粗糸を巻き付ける
ボビン、２３は各粗糸の送出案内部材、２４は撚掛装置
のリングである。In the figure, 21 and 22 are bobbins around which each stable fiber roving is wound, 23 is a delivery guide member for each roving, and 24 is a ring of a twisting device.

（発明の作用） 本発明の作用を実験値を交え、第１図及び第２図により
説明する。(Operation of the invention) The operation of the invention will be explained with reference to FIGS. 1 and 2 along with experimental values.

ボビン２１に巻き付けである粗糸Ｕは０．７′？′Ａｒ
Ｌ、平均繊維長８６Ｍのポリエステル繊維のみから放る
ステープル長繊維粗糸であり又ボビン２２に巻き付けで
ある粗糸Ｖは、平均繊維長３６ｒｒｒＩｎのポリエステ
ル繊維と綿花繊維とを１３ニアの割合で含み０．７／ｉ
ｎのステープル短繊維粗糸である。Is the roving thread U wound around the bobbin 21 0.7'? 'Ar
L, staple long fiber roving made only of polyester fibers with an average fiber length of 86M, and roving V, which is wound around the bobbin 22, contains polyester fibers with an average fiber length of 36 rrrIn and cotton fibers at a ratio of 13 nia. 0.7/i
n staple short fiber roving.

粗糸Ｕと粗糸Ｖとの間隔を１ｃ１ｎ以上離して、送出案
内部材２３．２３を経てバックローラ１，１に供給し、
エプロン３，３を経てドラフトローラ２，２に達すると
両粗糸Ｕ、Ｖは十分にドラフトされ、粗糸Ｕはドラフト
ローラ２゜２を通過した所で撚をかければ糸になる状態
であるが、粗糸Ｖは短繊維長にブレイクされた状態で集
団移動する。The roving yarn U and the roving yarn V are separated from each other by 1c1n or more and are supplied to the back rollers 1, 1 via the delivery guide member 23.23,
When the rovings U and V reach the draft rollers 2 and 2 after passing through the aprons 3 and 3, they are sufficiently drafted, and the roving U can be twisted into yarn after passing through the draft rollers 2 and 2. However, the rovings V move collectively in a state where they are broken into short fiber lengths.

ここで、吸引口１１より筒本体５内の空気は常に吸引さ
れているので、筒本体５の圧力が大気圧より低くなり、
ランパＴ近傍より粗糸流人孔９に達する吸引気流が生ず
る。Here, since the air inside the cylinder body 5 is constantly sucked through the suction port 11, the pressure in the cylinder body 5 becomes lower than atmospheric pressure.
A suction airflow is generated from the vicinity of the ramper T that reaches the roving thread flow hole 9.

短繊維長にブレイクされた粗糸Ｖは、高速回転するドラ
フトローラ２，２により、周囲に分散され易い状態とな
っているが、前記の吸引気流がドラフトローラ２，２の
近傍進達しているので、短繊維長にブレイクされた粗糸
Ｖは、十分にドラフトされた粗糸Ｕと共に、この吸引気
流に乗って筒本体５の粗糸流人孔９より筒本体５内に平
行に流入する。The roving V, which has been broken into short fiber lengths, is in a state where it is easily dispersed around the draft rollers 2, 2 which rotate at high speed, but the suction air current has reached the vicinity of the draft rollers 2, 2. Therefore, the roving V that has been broken into short fiber lengths, together with the sufficiently drafted roving U, flows in parallel into the cylinder body 5 through the roving flow hole 9 of the cylinder body 5 on this suction airflow. .

ここで、ドラフトローラ２，２の周速度は引出しローラ
４，４０周速度の１．２倍程度に設定してあり、又、圧
縮空気流入口１９より４．５ＩｖｃｒＡ程度の圧縮空気
が収容室２０内に入り込み、ジェット渦流噴出口１６，
１６．・・・・・・より内筒１３内に噴出し、内筒１３
内を粗糸Ｕ、Ｖの進行方向とは逆方向に螺旋回転しつつ
ジェット渦流となって高速度で流れ、ジェット過流流出
口１７より流出する。Here, the circumferential speed of the draft rollers 2, 2 is set to about 1.2 times the circumferential speed of the pull-out rollers 4, 40, and compressed air of about 4.5 IvcrA flows into the storage chamber 20 from the compressed air inlet 19. into the jet vortex outlet 16,
16.・・・・・・Gushes into the inner cylinder 13, and the inner cylinder 13
The rovings U and V spirally rotate in the direction opposite to the traveling direction of the rovings, forming a jet vortex flow at high speed, and flowing out from the jet overflow outlet 17.

ドラフトローラ２，２と引出しローラ４，４との周速度
の差及び螺旋回転しながら流れるジェット渦流とにより
、粗糸流人孔９と粗糸流出孔１５との間に位置する長繊
維粗糸Ｕは仮撚がかけられる。Due to the difference in circumferential speed between the draft rollers 2, 2 and the pull-out rollers 4, 4 and the jet vortex flowing while spirally rotating, the long fiber roving located between the roving flow hole 9 and the roving outflow hole 15 is U is false twisted.

この長繊維粗糸Ｕに仮撚がかけられることにより、粗糸
Ｕが粗糸流人孔９より筒本体５に流入する際に、粗糸Ｕ
は撚の方向に流入孔９０片側に寄るので、短繊維長にブ
レイクされた粗糸Ｖが流入孔９より筒本体５内に流入す
るのが容易となる。By false twisting this long fiber roving U, when the roving U flows into the cylinder body 5 from the roving flow hole 9, the roving U
Since the rovings V are closer to one side of the inflow hole 90 in the direction of twisting, the rovings V broken into short fiber lengths can easily flow into the cylinder body 5 through the inflow hole 9.

筒本体５内に粗糸Ｖと共に流入した短繊維粗糸Ｖの一部
は吸引口１１より筒本体５外に流出するが、大部分は流
出口１Ｔより高速度で流出するジェット渦流により連接
円板８０両面近傍に生ずる圧力差及び粗糸Ｕにかけられ
仮撚により、粗糸Ｖと共ｖｃｆｆＪ糸通過孔１０を通っ
て仮撚パイプＣの内筒１３内に流入する。A part of the short fiber rovings V that have flowed into the cylinder body 5 together with the rovings V flows out of the cylinder body 5 through the suction port 11, but most of the short fiber rovings V flow out of the cylinder body 5 through the suction port 11, but the majority of the short fiber rovings V flow into the connecting circle due to the jet vortex flowing out at a high speed from the outflow port 1T. Due to the pressure difference generated in the vicinity of both sides of the plate 80 and the false twisting applied to the rovings U, the rovings V and the rovings flow through the vcffJ yarn passage hole 10 into the inner tube 13 of the false-twisting pipe C.

内筒１３内に於いては、ドラフトローラ２，２と引出し
２０−ラ４，４との周速度の差、並びに螺旋回転しなか
ら粗糸の進行方向と逆方向に流れるジェット渦流の作用
により、長繊維粗糸ＵＫ仮撚がかけられると共に、粗糸
の進行方向と逆方向に流れるジェット渦流の作用により
、短繊維長にブレイクされた粗糸Ｖが僅かに上流側に押
し戻され、この押し戻す作用とジェット渦流の螺旋回転
とが相俟って、長繊維粗糸Ｕの外周に短繊維長にブレイ
クされた短繊維粗糸Ｖが螺旋状となって円滑に絡み付き
、このままで流出孔１５より流出し、流出孔１５と引出
しローラ４．４の間で粗糸Ｕの仮撚が戻される。In the inner cylinder 13, due to the difference in circumferential speed between the draft rollers 2, 2 and the drawer 20-rollers 4, 4, and the action of a jet vortex that rotates spirally and flows in the opposite direction to the traveling direction of the roving. , the long fiber roving UK is false twisted, and the roving V, which has been broken into short fiber lengths, is pushed back slightly to the upstream side by the action of the jet vortex flowing in the opposite direction to the traveling direction of the roving. Due to the combination of this action and the spiral rotation of the jet vortex, the short fiber rovings V, which have been broken into short fiber lengths, become spirally entwined around the outer periphery of the long fiber rovings U, and flow as they are from the outflow hole 15. The rovings U are untwisted between the outflow hole 15 and the pull-out roller 4.4.

引出しローラ４，４を経た粗糸Ｕと粗糸Ｖの繊維束は、
粗糸Ｕをコアーにし粗糸Ｖをシースとした系状態で、こ
の侭で巻き取ればクレイプ調の撚トルクの残った無撚糸
となり、撚捌装置のリング２４により軽い撚をかければ
、第４図に示すような、腰、張りのあるポリエステル繊
維をコアーとし、柔軟性、吸湿性に富む綿繊維をシース
とする高張力を有し、かつ汎用性に富む普通撚状のコア
ーヤーンが得られる。The fiber bundles of rovings U and rovings V that have passed through the pull-out rollers 4, 4 are
In a system in which the roving U is the core and the roving V is the sheath, if it is wound in this way, it will become an untwisted yarn with crepe-like twisting torque, and if it is lightly twisted by the ring 24 of the twisting device, it will become a fourth yarn. As shown in the figure, a normally twisted core yarn with high tensile strength and versatility is obtained, which has a core made of polyester fibers that are stiff and taut, and a sheath made of cotton fibers that are highly flexible and hygroscopic.

なお、本発明に使用する各繊維粗糸は上記のものに限定
されず、長繊維紡績に仕掛る平均繊維長３インチ以上の
長繊維粗糸と、短繊維紡績に仕掛る平均繊維長１．５イ
ンチ以下の短繊維粗糸の組合せてあればよい。The fiber rovings used in the present invention are not limited to those mentioned above, and long fiber rovings with an average fiber length of 3 inches or more are used for long fiber spinning, and long fiber rovings with an average fiber length of 1.5 inches or more are used for short fiber spinning. A combination of short fibers and rovings of 5 inches or less is sufficient.

（発明の効果） このように、本発明は、仮撚パイプ内において、螺旋回
転？与えられて粗糸の進行方向と逆方向に噴出ｆ ７＞
シーｒ−ント渦流を発生せしめているので、このジェ
ット渦流の作用により、短繊維長にブレイクされた粗糸
Ｖが僅かに上流側に押し戻され、この押し戻す作用とジ
ェット渦流の螺旋回転とが相俟って、長繊維粗糸Ｕの外
周に短繊維粗糸Ｖを螺旋状にして円滑に絡み付けて被覆
することが可能となる。(Effects of the Invention) As described above, the present invention provides spiral rotation within the false-twisted pipe. Given this, the jet is ejected in the direction opposite to the traveling direction of the roving f7>
Since the jet vortex is generated, the roving V, which has been broken into short fiber lengths, is slightly pushed back to the upstream side by the action of this jet vortex, and this pushing back action and the spiral rotation of the jet vortex go hand in hand. In this way, it becomes possible to spirally wrap the short fiber rovings V around the outer periphery of the long fiber rovings U and to smoothly entangle and cover the long fiber rovings U.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本発明を実施する装置の斜視図、第２図は第
１図の縦断面拡大図、第３図は第２図のＸ−Ｘ線断面図
、第４図は本発明のコアヤーンの拡大斜視図である。 （主要部分の符号の説明）、２・・・ドラフトローラ、
４・・・引出しローラ、Ｂ・・・吸引パイプ、Ｃ・・・
仮撚パイプ、Ｕ・・・ステーブル長繊維粗糸、Ｖ・・・
ステーブル短繊維粗糸。FIG. 1 is a perspective view of an apparatus for carrying out the present invention, FIG. 2 is an enlarged vertical cross-sectional view of FIG. 1, FIG. 3 is a sectional view taken along the line X--X of FIG. FIG. 3 is an enlarged perspective view of the core yarn. (Explanation of symbols of main parts), 2...Draft roller,
4... Pull-out roller, B... Suction pipe, C...
False twisted pipe, U...stable long fiber roving, V...
Stable short fiber roving.

Claims (1)

【特許請求の範囲】[Claims] １ ドラフト装置のドラフトローラと引出しローラと
の間に、ステープル短繊維粗糸とステープル長繊維粗糸
とを合体させて吸引する吸引パイプと、両組糸の進行方
向と逆方向にジェット渦流を噴出する仮撚パイプとを上
流側より順次配設し、前記ドラフトローラの周速度を引
出し占−ラの周速度よりも大きく設定し、両ローラの周
速度差及び螺旋回転を与えられて粗糸の進行方向と逆方
向に噴出するジェット渦流の作用により、仮撚パイプ内
で仮撚のかかったステープル長繊維粗糸に短繊維長にブ
レイクされたステーブル短繊維粗糸を螺旋状に絡みつけ
て被覆することを特徴とするステーブル繊維のみによる
コアヤーンの製造方法。1. Between the draft roller and the pull-out roller of the drafting device, there is a suction pipe that combines and suctions the staple short fiber roving and the staple long fiber roving, and a jet vortex is ejected in the direction opposite to the traveling direction of both braided yarns. The circumferential speed of the draft roller is set higher than the circumferential speed of the pull-out roller, and the difference in circumferential speed of both rollers and the spiral rotation are applied to twist the roving. By the action of the jet vortex ejected in the opposite direction to the traveling direction, the stable short fiber roving, which has been broken into short fiber length, is spirally entwined with the false twisted staple long fiber roving in the false twisting pipe. A method for producing a core yarn using only stable fibers, characterized in that the core yarn is coated with stable fibers.