JP2021500487A - Gripper assembly to insert weft into the loom without using the shuttle - Google Patents
Gripper assembly to insert weft into the loom without using the shuttle Download PDFInfo
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- JP2021500487A JP2021500487A JP2020522363A JP2020522363A JP2021500487A JP 2021500487 A JP2021500487 A JP 2021500487A JP 2020522363 A JP2020522363 A JP 2020522363A JP 2020522363 A JP2020522363 A JP 2020522363A JP 2021500487 A JP2021500487 A JP 2021500487A
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- 239000002759 woven fabric Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims description 21
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000036316 preload Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
- D03D47/23—Thread grippers
- D03D47/233—Carrying grippers
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
- D03D47/23—Thread grippers
- D03D47/236—Drawing grippers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
ブリンガーグリッパーと牽引グリッパーを備え、シャトルを使用せずに緯糸を織機に挿入するグリッパーアセンブリ。ブリンガーグリッパーは、制御要素に固定されるように適合された成形端を備えた本体(1)、緯糸誘導用外形部(2)、回転ピン(4)にヒンジ結合された揺動アーム(3)、反力ばね(6)、および揺動レバー(3)のグリッパーピン(5)を備え、グリッパーピン(5)はグリッパーの本体(1)の垂直軸を中心に回転し、反力ばね(6)はグリッパーピン(5)を一方の側に保持し、他方の側で傾斜面に対してよりかかさせ、そうすることで自動締め付け状態となる。牽引グリッパーは、織物の中心で、糸(7)をブリンガーグリッパーと切り替えるものであり、成形された端部を備えた本体(10)、糸(7)を把持する領域を開閉するための駆動レバー(12)と長手方向に摺動するロッド(11)とを含む中央部分、及び摺動部(14)に固定された弾性ブレード(18)を備える。ロッド(11)は、フック状部分(15)の中へ摺動可能な摺動部(14)を有する。弾性ブレード(18)は、摺動部(14)と同時に開き、糸(7)を解放する。【選択図】図1A gripper assembly with a Bringer gripper and a traction gripper that inserts the weft into the loom without the use of a shuttle. The Bringer gripper is a body (1) with a molded end adapted to be fixed to a control element, an outer shape for weft guidance (2), and a swing arm (3) hinged to a rotating pin (4). , The reaction force spring (6), and the gripper pin (5) of the swing lever (3), the gripper pin (5) rotates about the vertical axis of the gripper body (1), and the reaction force spring (6) ) Holds the gripper pin (5) on one side and bends it against the inclined surface on the other side, whereby the automatic tightening state is established. The traction gripper switches the yarn (7) to the Bringer gripper at the center of the woven fabric, and is a drive lever for opening and closing the main body (10) having a molded end and the area for gripping the yarn (7). It includes a central portion including (12) and a rod (11) that slides in the longitudinal direction, and an elastic blade (18) fixed to the sliding portion (14). The rod (11) has a sliding portion (14) slidable into the hook-shaped portion (15). The elastic blade (18) opens at the same time as the sliding portion (14) to release the thread (7). [Selection diagram] Fig. 1
Description
本発明は、一般に、シャトル(杼)を使用しない、織機に緯糸を挿入するグリッパーアセンブリに関する。より具体的には、本発明は、伝統的織物および工業用織物用の広範な種類の糸を使用して、緯糸を確実に把持し、織物の中心部に移動し、織物から退出する糸を切り替えおよび解放するように、把持要素の間の糸を保持するための革新的な要素を用いて、織物の製造、およびシャトルを使用しない織機での経糸織機(warp weaving looms)に適した無交換(negative exchange)タイプの一対のグリッパー(搬送側、すなわちブリンガーグリッパー、および、引き抜き側、すなわち牽引グリッパー)に関する。 The present invention generally relates to a gripper assembly that inserts weft threads into a loom without the use of a shuttle. More specifically, the present invention uses a wide variety of yarns for traditional and industrial woven fabrics to ensure that the wefts are gripped, moved to the center of the woven fabric and exited from the woven fabric. Non-replacement suitable for warp waving looms in woven fabric production and shuttleless looms, with innovative elements to hold the yarn between the gripping elements so that they can be switched and released. It relates to a pair of grippers of the (negative exchange) type (transport side, i.e. Bringer gripper, and pull-out side, i.e. traction gripper).
今日では幅広く使用されている、経糸と緯糸による織物を製造する、シャトルを使用しない織機を特徴づける機織りの挿入技術には、グリッパー型、弾丸型(projectile)、エアジェット、ウォータージェットがある。ウォータージェット織機は用途が少なく、汚染の問題を有している。エアジェット織機は適度な用途に使用できるがエネルギー消費が高い。一方、弾丸型織機は中〜高程度に多用途ではあるが、緯糸の張力制御が制限され、機械的に複雑な構造をしている。グリッパー技術は、良好な生産性レベルに加え、その高い多用途の特徴により、極めて広範に普及している。グリッパーは、経糸を通って緯糸を挿入する操作に特化した織機の装置であり、一般に、グリッパー織機は、各側に一つずつ、それぞれが搬送するもの(carrier)と牽引するもの(traction)である一対のグリッパー(把持部)を備え、各グリッパーは織物の外部位置から織物の中心部まで、交互に、対向して移動し、織物の外部の開始点まで戻るように、動きを反転する。 Weaving insertion techniques that characterize shuttle-less looms that produce warp and weft fabrics that are widely used today include gripper, projectile, air jet, and water jet. Water jet looms have few uses and have the problem of contamination. Air-jet looms can be used for moderate purposes but consume high energy. On the other hand, the bullet loom is versatile in the medium to high range, but the tension control of the weft is limited and it has a mechanically complicated structure. Gripper technology is extremely widespread due to its high productivity level and its high versatility. A gripper is a device of a loom specialized in the operation of inserting a weft through a warp, and in general, a gripper loom is one for each side, one for carrying (carrier) and the other for pulling (traction). Each gripper is provided with a pair of grippers that are alternately and opposed to each other from the external position of the fabric to the center of the fabric and reverse the movement so as to return to the external starting point of the fabric. ..
一対のグリッパーのうち、ブリンガー(bringer、搬送側)として規定される第一のグリッパーは、緯糸の先端を把持し、緯糸を織物の中心に持っていき、ここで第一のグリッパーは緯糸を牽引(traction、受け側)と呼ばれる第二のグリッパーと切り替え、第二のグリッパーは緯糸の先端を把持し、残り半分の織物の外端部へと引く。ブリンガーグリッパーと牽引グリッパーの間の織物中心部での緯糸の切り替えは、押込式(positive type)であっても、受動式(negative type)であってもよい。経糸工程内での押込式の切り替えは、中心部での、特殊なグリッパー開放フックによる干渉により実施される。経糸の下方部の糸の間に突出する特殊なグリッパー開放フックは、糸を一方のグリッパーから別のグリッパーへと糸を移動するために、グリッパーの緯糸の保持機構(holding organs)の開閉を作動する。経糸への干渉を行う、例えばブレードやフックなどの干渉源は、様々なタイプの織物と適合性がなく、一般に、摩耗が起こり、予備部品のコストがかかる。 Of the pair of grippers, the first gripper, defined as the bringer, grips the tip of the weft and brings the weft to the center of the fabric, where the first gripper pulls the weft. Switching to a second gripper called (traction, receiving side), the second gripper grabs the tip of the weft and pulls it to the outer end of the other half of the fabric. The switching of the weft at the center of the fabric between the Bringer gripper and the traction gripper may be a push type or a negative type. Push-in switching within the warp process is carried out by interference at the center with a special gripper opening hook. A special gripper release hook that projects between the threads at the bottom of the warp activates the opening and closing of the gripper's holding organs to move the thread from one gripper to another. To do. Interfering sources that interfere with the warp threads, such as blades and hooks, are incompatible with various types of fabrics and are generally worn and costly for spare parts.
ブリンガーグリッパーと牽引グリッパーの間の糸の受動式切り替えは、保持要素の間に糸が挿入される間に糸に対して動作する、織物の入り口部分に配置された緯糸製織装置の牽引動作によって発生される。前述の保持要素は、糸に対する制御された摩擦を取得するとともに、糸を、長手方向に滑り抜けることなく、把持要素の間で、糸の軸に対して垂直に摺動するように構成されている。 Passive switching of yarn between the Bringer gripper and the traction gripper is caused by the traction operation of a weft weaving device located at the entrance of the fabric, which acts on the yarn while the yarn is inserted between the retaining elements. Will be done. The holding element described above is configured to obtain controlled friction against the thread and to slide the thread perpendicular to the axis of the thread between the gripping elements without slipping through in the longitudinal direction. There is.
緯糸挿入の各サイクルで、織物の一方の端部から来る糸は色選別機によって選択され、ブリンガーグリッパーに挿入され、保持要素の間を摺動し、切断され、牽引グリッパーとの切り替え地点まで運搬される。牽引グリッパーは、それ自体の保持要素を有しており、保持要素が先端を把持して、挿入を完了する。 At each weft insertion cycle, the yarn coming from one end of the fabric is selected by a color sorter, inserted into the Bringer gripper, slid between the holding elements, cut and transported to the switching point with the traction gripper. Will be done. The traction gripper has its own holding element, which grips the tip to complete the insertion.
一般に、グリッパーは、誘導用外形部(guide profiles)と長手方向保持要素を有する。誘導用外形部は、糸を、アバットメント(台座部、当接部)と弾力のある揺動ピンとの間にある糸を水平方向軸に対して配置するように向ける(predispose)。長手方向保持要素は、ピンの一部によって構成され、反力ばね(reaction spring)によって駆動され、要素の下方にある糸を保持し、剛体または弾性体とすることができる。 Generally, the gripper has a guide profile and a longitudinal holding element. The guiding contour directs the thread so that the thread between the abutment (pedestal, abutment) and the elastic swing pin is aligned with respect to the horizontal axis (predispose). The longitudinal holding element is composed of a portion of a pin and is driven by a reaction spring to hold the thread below the element and can be a rigid or elastic body.
現在使用されている牽引グリッパーの保持点は、糸が挿入されるばね作動式の揺動アームによって表面が近くに維持されるタイプのものか、または、頂点に向かって引っ張られる糸の摩擦による漸進的固定(progressive locking、段階的な固定)を行うのに適している角度が固定されたくさび形タイプである。また、固定式のくさび形と弾性ブレードの組み合わせも使用され、この組み合わせでは、支持部に対して近い位置を保ち、また、糸の挿入の最後で糸が解放されるときに閉止される。 The holding points of the tow grippers currently in use are of the type that the surface is kept close by a spring-loaded swing arm into which the thread is inserted, or the thread is pulled towards the apex and is progressive due to friction. It is a wedge-shaped type with a fixed angle that is suitable for performing progressive locking (stepwise fixing). A combination of a fixed wedge and an elastic blade is also used, which keeps the position close to the support and closes when the thread is released at the end of thread insertion.
緯糸切り替えプロセスの段階において、牽引グリッパーはブリンガーグリッパーによって提供された糸を引っかけ、糸が保持部材の間に挿入される間、保持部材の間で固定されるまで、牽引経路(dragging path)の間を摺動することなく、糸を保持する。さらに、牽引グリッパーが織物から出るときには、糸は摩擦がない状態で保持ポイントから離れなければならないため、牽引グリッパーは瞬時に開いて糸を解放する必要がある。 During the weft switching process, the traction gripper hooks the yarn provided by the Bringer gripper and during the dragging path until the yarn is inserted between the holding members and secured between the holding members. Holds the thread without sliding. In addition, when the traction gripper exits the fabric, the yarn must leave the holding point without friction, so the traction gripper must open instantly to release the yarn.
本発明の目的は、シャトルを使用せずに、緯糸を織機に挿入するためのグリッパーアセンブリの提供であって、それは緯糸の把持、布地の中心への移送、切り替え、排出する糸(output yarn)の解放を高い信頼性で順次保証する。本発明のグリッパーアセンブリは、いろいろな種類の織物ごとに、幅広い種類の、撚糸、平行糸、飾り糸、マルチフィラメント糸、シングルフィラメント糸、金属ストリップまたは金属糸に使用できる。 An object of the present invention is to provide a gripper assembly for inserting a weft yarn into a loom without using a shuttle, which is a yarn for gripping the weft yarn, transferring it to the center of the fabric, switching it, and discharging it. Guarantee the release of the product with high reliability. The gripper assembly of the present invention can be used for a wide variety of plying, parallel yarns, decorative yarns, multifilament yarns, single filament yarns, metal strips or metal yarns for different types of fabrics.
上記の目的のために、本発明によれば、糸を把持(grip)および保持(hold)するための部材の革新的な構成要素を備えた、受動式切り替えタイプの一対のグリッパーが使用される。 For the above purposes, according to the present invention, a pair of passive switching type grippers with innovative components of a member for gripping and holding a yarn is used. ..
上記の、および他の課題は、添付の請求項1に従った、シャトルを使用せずに織機に緯糸を挿入するグリッパーアセンブリによって実現される。本発明に従ったグリッパーアセンブリのより詳細な技術的特徴が、そのあとの従属請求項で報告されている。本発明のブリンガーグリッパーの構成において、グリッパー本体の、好適には垂直軸(vertical axis)の周囲を回転する揺動ピンが提供されており、揺動ピンの片側には、断面がくさび形である糸の把持アーム(gripping arm)が提供されている。断面のくさび形の垂直面に対する角度は、揺動ピンのもう一方の側に作用する板ばねによって押し戻される外形部の部分の角度に等しい。
The above and other tasks are accomplished by a gripper assembly that inserts the weft into the loom without the use of a shuttle, according to the attached
織物の外部に出た緯糸の制動によって与えられる糸の張力は、2つの傾斜した表面の間の差異(contrast)から生じる力を、摩擦によって、決定する。前記ピンを横断するこの力は、ピンをさらに閉止し、それにより、閉止するばね(closing spring)の限定された力によって動作時の抑制を改善し、結果として、糸がピンに侵入することを促進し、最終的に自動閉鎖(self locking、自己閉鎖)状態となる。 The tension of the yarn exerted by the braking of the weft yarn coming out of the fabric determines the force resulting from the contrast between the two sloping surfaces by friction. This force across the pin further closes the pin, thereby improving the restraint during operation by the limited force of the closing spring (closing spring), resulting in the thread entering the pin. It promotes and eventually becomes an automatic closing (self-locking) state.
本発明に従ったグリッパーアセンブリは、牽引グリッパーのみで使用されてもよい。当該牽引グリッパーは、糸がそれ自体の軸に対して長手方向ではなく垂直方向に円滑に摺動する、弾性糸の第一の入り口領域によって形成される把持領域と、最終的な漸進的固定のための固定角度領域と、弾性保持部品および固定保持部品の両方を同時に開放するシステムを与える。本発明のさらなる技術的特徴は、複合材料で作られ、屈曲した構成で牽引グリッパーの本体に配置された摺動部で構成される。結果として、摺動部の長手方向の移動により、糸を保持する(holding)領域の迅速な開放が可能となる。摺動部の弾性領域の予備荷重(preload)と、摺動部先端の誘導部の形状が、グリッパーの開放時間(opening times)の速度を決定する。 The gripper assembly according to the present invention may be used only with a traction gripper. The traction gripper is a gripping area formed by the first entrance region of the elastic yarn, where the yarn slides smoothly in the direction perpendicular to its own axis rather than longitudinally, and the final gradual fixation. It provides a fixed angle region for and a system that simultaneously opens both the elastic holding part and the fixed holding part. A further technical feature of the present invention is that it is made of a composite material and consists of sliding parts arranged in the body of the traction gripper in a bent configuration. As a result, the longitudinal movement of the sliding portion allows for the rapid opening of the holding region. The preload of the elastic region of the sliding portion and the shape of the guiding portion at the tip of the sliding portion determine the speed of the opening time of the gripper (opening times).
最後に、牽引グリッパーは、片面織機(single−sided weaving machines)でも使用可能であり、この場合、牽引グリッパーは、織物の入口端で選択された緯糸を引っかけ、緯糸を布の全幅に沿って一端から他端まで引っ張り、緯糸を織物の出口で経糸から解放する。本発明のさらなる課題および有利点は、本発明に従った、シャトルを使用せずに織機に緯糸を挿入するグリッパーアセンブリの、例示的かつ好適な、ただし限定的ではない実施形態に関する以下の説明、および、添付の図面からより明確となるであろう。 Finally, the traction gripper can also be used on single-sided waving machines, where the traction gripper hooks the selected weft at the inlet end of the fabric and ends the weft along the full width of the fabric. Pull from to the other end to release the weft from the warp at the exit of the fabric. A further subject matter and advantage of the present invention is the following description of an exemplary, preferred, but not limited, embodiment of a gripper assembly for inserting wefts into a loom without the use of a shuttle, in accordance with the present invention. And it will be clearer from the attached drawings.
添付の図面を参照すると、本発明に従ったグリッパーアセンブリは、実質的に、ブリンガーグリッパーおよび牽引グリッパーを備えている。 With reference to the accompanying drawings, the gripper assembly according to the invention substantially comprises a Bringer gripper and a traction gripper.
特に、ブリンガーグリッパーは、指揮要素(command element)に固定されるように適合された成形端部を有する本体(1)、緯糸誘導用外形部(2)、回転ピン(4)にヒンジ結合された揺動レバー(3)、および反力ばね(6)を備えている。グリッパー要素は、グリッパーの本体(1)の好適には垂直軸を中心に回転する、揺動レバー(3)を把持するためのピン(5)で構成され、このとき、ばね(6)は、片側でレバー(3)のピンを閉状態に維持し、反対側でレバー(3)のピンを傾斜面に寄りかからせ、これにより、糸(7)が引っ張られる、自動閉鎖状態となる。 In particular, the Bringer gripper was hinged to a body (1), a weft guiding contour (2), and a rotating pin (4) with molded ends adapted to be secured to a command element. It is provided with a swing lever (3) and a reaction force spring (6). The gripper element is composed of a pin (5) for gripping a swing lever (3), which preferably rotates about a vertical axis of the gripper body (1), at which time the spring (6) is The pin of the lever (3) is kept closed on one side, and the pin of the lever (3) is leaned against the inclined surface on the other side, whereby the thread (7) is pulled, resulting in an automatic closing state.
特に、選択された緯糸に向かって前進し、ほぼ水平位置に配置されるブリンガーグリッパーは、ボビンから来て、選別機によって提供される糸(7)を、アバットメント(8)と緯糸誘導用外形部(2)のアバットメント表面との間の交差部(intersection)から構成される把持ポイントで、挿入する。 In particular, the Bringer gripper, which advances towards the selected weft and is placed in a nearly horizontal position, comes from the bobbin and pulls the yarn (7) provided by the sorter into the abutment (8) and the weft guiding contour. Insert at a gripping point composed of an intersection between the abutment surface of the portion (2).
糸の牽引力、および糸と保持面との間の摩擦力の影響が、緯糸誘導用外形部(2)の当接面に向かってピン(5)を引っ張ることに貢献する。また、支持角度の効果により、ばね負荷(6)を増加させることなく、糸(7)の把持をさらに強めることに貢献し、低抵抗、装飾的図柄(fancy plot)、または工業用織物に関して特に恩恵をもたらす。 The influence of the traction force of the yarn and the frictional force between the yarn and the holding surface contributes to pulling the pin (5) toward the contact surface of the weft guiding outer shape portion (2). Also, the effect of the support angle contributes to further strengthening the grip of the yarn (7) without increasing the spring load (6), especially with respect to low resistance, funcy plots, or industrial fabrics. Bring benefits.
常に本発明に従うと、織物の中心部で糸(7)をブリンガーグリッパーと交換する牽引グリッパーは、ストロークを形成するテープまたはロッドに固定されるように成形された端部を有する本体(10)、糸(7)を把持するための領域の開閉を操作するレバー(12)を含む中心部、および柔軟な材料で作成されたロッド(11)で構成される長手方向に摺動する要素を備え、当該長手方向に摺動する要素は、フック状部分(15)で摺動する、本体(10)の反対側の端部(A)に取り付けられた末端部すなわち摺動部(14)を有している。 Always according to the present invention, the traction gripper, which replaces the yarn (7) with a Bringer gripper at the center of the fabric, has a body (10) with an end shaped to be fixed to a tape or rod forming a stroke. It comprises a central part including a lever (12) for manipulating the opening and closing of a region for gripping the thread (7), and a longitudinally sliding element composed of a rod (11) made of a flexible material. The element that slides in the longitudinal direction has an end portion, that is, a sliding portion (14) attached to an end portion (A) on the opposite side of the main body (10), which slides on the hook-shaped portion (15). ing.
摺動部(14)は、ばね(13)によって、フック部(15)内部の突出外形部(17)に向かって、摺動部(14)との間で所定の角度を形成する前述のフック部(15)の表面(16)に対して押しつけられる。一方で、摺動部(14)と一体化した弾性ブレード(18)は、表面(16)に対して押しつけられ、弾性ブレード(18)は誘導用外形部(17)の効果により、摺動部(14)の開口部で分離し、それにより、ブレード(18)は、摺動部(14)に対して、関連する歯部(19)とともに静止する(rest with)ので、ブレード(18)は表面(16)から離れる。 The above-mentioned hook that the sliding portion (14) forms a predetermined angle with the sliding portion (14) toward the protruding outer shape portion (17) inside the hook portion (15) by the spring (13). It is pressed against the surface (16) of the portion (15). On the other hand, the elastic blade (18) integrated with the sliding portion (14) is pressed against the surface (16), and the elastic blade (18) is due to the effect of the guiding outer shape portion (17). The blade (18) is separated by the opening of (14) so that the blade (18) rests with respect to the sliding portion (14) along with the associated tooth (19). Move away from the surface (16).
ブリンガーグリッパーから牽引グリッパーへの緯糸の切り替えは、フック状部分(15)の表面(16)とブレード(18)の外形部(20)との間に糸(7)を挿入することから始まる。ブレード(18)が柔軟であることから、螺子(21)に作用する調節可能な予備荷重により、表面(16)に載せられた糸(7)の牽引力と太さに応じて、ブレード(18)は表面(16)から離れる。これは、進行中の織り方にグリッパーを適応させることを可能にする、 Switching the weft from the Bringer gripper to the traction gripper begins with inserting the thread (7) between the surface (16) of the hook-shaped portion (15) and the outer shape (20) of the blade (18). Due to the flexibility of the blade (18), the adjustable preload acting on the screw (21) causes the blade (18) to depend on the traction and thickness of the thread (7) placed on the surface (16). Moves away from the surface (16). This makes it possible to adapt the gripper to the ongoing weave,
この第一の区分の後、特に低抵抗プロット(low resistance plots)に好都合であるように、糸は表面(16)と摺動部(14)によって形成される角度の頂点に向かって、糸の太さが許容される地点まで進み続け、これに対応して、糸(7)とグリッパーの把持要素の間で発生する摩擦によって阻止される。糸(7)を解放するための開口が、レバー(12)上の外形の輪郭による圧力によって得られ、そうすることで、回転により、ロッド(11)が摺動部(14)までスライドし、摺動部(14)をフック(15)の形状の部分(A)から引っ張り出す。 After this first division, the yarn is of the yarn towards the apex of the angle formed by the surface (16) and the sliding part (14), which is particularly convenient for low resistance plots. The thickness continues to the permissible point, which is correspondingly blocked by the friction generated between the thread (7) and the gripping element of the gripper. An opening for releasing the thread (7) is obtained by the pressure of the contour of the outer shape on the lever (12) so that the rotation causes the rod (11) to slide to the sliding portion (14). The sliding portion (14) is pulled out from the portion (A) in the shape of the hook (15).
牽引グリッパーの本体(10)の内部で弾性的に屈曲させられたロッド(11)は、摺動部(14)をグリッパーのフック(15)の外形部(17)に向かって押し続け、後方に動いて表面(16)から離れ、先に述べた牽引グリッパーを放置して糸(7)を自由に解放する開口を生成する。 The rod (11) elastically bent inside the body (10) of the traction gripper keeps pushing the sliding portion (14) toward the outer shape portion (17) of the gripper hook (15) and rearwardly. It moves away from the surface (16) and leaves the traction gripper described above to create an opening that frees the thread (7).
フック状部分(15)の表面(16)からの摺動部(14)の除去動作は、摺動部とともに弾性刃(18)を引っ張り、弾性刃(18)は、歯部(19)で摺動部(14)に支えられ、動きに追従する。このように、牽引グリッパーは、固定されたくさび形部分と弾性部分を同時に開放し、糸(7)は把持要素を摩擦から解放する。 The action of removing the sliding portion (14) from the surface (16) of the hook-shaped portion (15) pulls the elastic blade (18) together with the sliding portion, and the elastic blade (18) slides on the tooth portion (19). It is supported by the moving part (14) and follows the movement. In this way, the traction gripper simultaneously releases the fixed wedge-shaped portion and the elastic portion, and the thread (7) releases the gripping element from friction.
実際には、牽引グリッパーは、糸を解放する段階で同時に開く第一の弾性要素、および第二の剛体要素と、屈曲態勢で搭載されて長手方向に摺動し把持する領域を生じさせる弾性ロッド(11)と、を含み、ブレード(18)は、表面(16)と摺動部(14)の間の固定角度の下部で停止するまで、糸(7)の拘束を段階的に開始することと、糸の解放のための迅速な開口を可能にする。 In practice, the traction gripper is an elastic rod that is mounted in a flexed position to create a region that slides and grips in the longitudinal direction with a first elastic element and a second rigid element that open simultaneously at the thread release stage. (11), including, the blade (18) is to start constraining the thread (7) in stages until it stops at the bottom of the fixed angle between the surface (16) and the sliding portion (14). And allows for quick opening for thread release.
上記説明により、本発明の主題である、シャトルを使用せずに緯糸を挿入するグリッパーアセンブリの特徴が明確となり、有利な点も明確となった。最後に、本発明の実施において、例示された詳細説明の材料、形状および寸法は、要件に従った任意のものであってもよく、また、他の同等物と差し替えられてもよいことが明らかであることから、この革新的な思想に固有の進歩性の要旨から逸脱することなく、多様な変更が当該グリッパーアセンブリになされてもよいことが明確となった。 From the above description, the characteristics of the gripper assembly for inserting the weft without using the shuttle, which is the subject of the present invention, are clarified, and the advantages are also clarified. Finally, in practicing the present invention, it is clear that the illustrated materials, shapes and dimensions of the detailed description may be of any requirement and may be replaced with other equivalents. Therefore, it became clear that various changes may be made to the gripper assembly without departing from the gist of inventive step inherent in this innovative idea.
Claims (9)
前記織物の中心で、前記テイカーグリッパーと前記ブリンガーグリッパーの間で、前記糸を交換し、挿入を完了する前記テイカーグリッパーは、片側でテープまたはロッドに固定されるように成形された本体(10)と、前記糸(7)を把持する領域を開閉するための駆動レバー(12)を備えた中心部と、前記本体内で弾性的に屈曲した、長手方向に摺動するロッド(11)と、フック状部分(15)の中へ摺動可能な摺動部(14)であって、前記フック状部分(15)の表面(16)から後退し、前記フック状部分(15)の誘導用外形部(17)に対して押しつけられるとき、当該摺動部(14)に対して歯部(19)で寄りかかり当該摺動部の動作に追従する弾性ブレード(18)を牽引する摺動部(14)とを備えており、
これにより、前記テイカーグリッパーから前記糸(7)を解放するために、前記摺動部(14)と前記弾性ブレード(18)の両方を同時に開くことを特徴とするグリッパーアセンブリ。 A gripper assembly for inserting weft threads into a loom that does not use a shuttle, including a Bringer gripper and a taker gripper, wherein the grippers are the first step of gripping the weft threads and the second step of transporting the fabric to the center. It is suitable for producing woven fabrics with weft and warp yarns by performing a third step of switching and a fourth step of completing transport and releasing the yarn in the woven fabric.
At the center of the fabric, between the taker gripper and the Bringer gripper, the thread is exchanged and the insertion is completed. The taker gripper is formed so as to be fixed to a tape or a rod on one side (10). A central portion provided with a drive lever (12) for opening and closing a region for gripping the thread (7), an elastically bent rod (11) in the main body, and a rod (11) sliding in the longitudinal direction. A sliding portion (14) that is slidable into the hook-shaped portion (15) and retracts from the surface (16) of the hook-shaped portion (15) to guide the hook-shaped portion (15). When pressed against the portion (17), the sliding portion (14) leans against the sliding portion (14) at the tooth portion (19) and pulls the elastic blade (18) that follows the movement of the sliding portion. ) And
Thereby, the gripper assembly is characterized in that both the sliding portion (14) and the elastic blade (18) are simultaneously opened in order to release the thread (7) from the taker gripper.
Applications Claiming Priority (3)
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IT102017000121914A IT201700121914A1 (en) | 2017-10-26 | 2017-10-26 | GRIPPING GROUP FOR INSERTION OF THE PLOTWIRE IN FRAMES WITHOUT SHUTTLE |
IT102017000121914 | 2017-10-26 | ||
PCT/IT2018/050205 WO2019082222A1 (en) | 2017-10-26 | 2018-10-23 | Gripper assembly for inserting the weft yarn in weaving looms without shuttle |
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JPS5777353A (en) * | 1980-09-15 | 1982-05-14 | Nuovo Pignone Spa | Weft yarn propelling gripper of loom |
EP0504899A1 (en) * | 1991-03-22 | 1992-09-23 | SOMET SOCIETA' MECCANICA TESSILE S.p.A. | Drawing gripper for shuttleless looms, particularly for weaving synthetic yarn |
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CH639439A5 (en) * | 1979-09-05 | 1983-11-15 | Rueti Ag Maschf | GRIPPER HEAD FOR WEAVING MACHINES WITH THE REMOVAL OF THE WIFE FROM FIXED REELS. |
CN2073427U (en) * | 1990-07-27 | 1991-03-20 | 施金钟 | Left side weft-yarn gripper for improved rapier loom |
IT1254987B (en) * | 1992-06-23 | 1995-10-11 | Luciano Corain | IMPROVEMENT IN A TRACTION GRIPPER FOR TEXTILE FRAME |
IT1274589B (en) * | 1994-08-05 | 1997-07-18 | Nuovo Pignone Spa | IMPROVED SYSTEM OF GRIPPING AND TIGHTENING THE WEFT IN THE TRACTION GRIPPER OF A TEXTILE FRAME |
KR100330283B1 (en) * | 1998-03-09 | 2002-06-20 | 이규건 | Weft carrying gripper |
KR200241611Y1 (en) * | 1998-05-08 | 2001-11-22 | 이규건 | Slider support in weft draw-out gripper |
JP2002146649A (en) * | 2000-11-10 | 2002-05-22 | Toyota Industries Corp | Weft inserting device of rapier loom |
CN200967866Y (en) * | 2006-09-14 | 2007-10-31 | 浙江虎王数控科技有限公司 | Gripper head feeding rapier for weft gripper loom |
US9732450B2 (en) * | 2013-10-24 | 2017-08-15 | Nv Michel Van De Wiele | Giver rapier head, giver rapier, rapier weaving machine and method for inserting a weft thread in such a rapier weaving machine using such a giver rapier head |
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2017
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JPS5777353A (en) * | 1980-09-15 | 1982-05-14 | Nuovo Pignone Spa | Weft yarn propelling gripper of loom |
EP0504899A1 (en) * | 1991-03-22 | 1992-09-23 | SOMET SOCIETA' MECCANICA TESSILE S.p.A. | Drawing gripper for shuttleless looms, particularly for weaving synthetic yarn |
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EA039748B1 (en) | 2022-03-05 |
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