1354042 九、發明說明 【發明所屬之技術領域】 -本發明係有關於根據申請專利範圍第1項前言部份的 給紗裝置。 【先前技術】 專利文獻DE-A-10 2006 001 125號中揭露—種裝置於 φ —給紗裝置內的紗線制動器。該圓錐狀彈性的制動本是由 卡扣連接固定於一固持器環上。該制動本體及固持器環上 設有互斥的永久磁鐵設施，其每一者均是由多個沿著環周 -方向配設的單體永久磁鐵件或是一個永久磁鐵環所構成的 _ 。該固持器環是固定於一設置在外殼臂部上的滑件上。此 ' 滑件可透過轉動地支撐於外殼臂部上的螺紋心軸而沿著儲 放本體的軸向方向做調整。該心軸係連接至位於該外殼臂 部自由末端上的旋鈕上，以供進行該固持器環之永久磁鐵 φ 設施的相對軸向位置的逐步調整，以改變該制動本體與該 儲放本體之抽拉末端間的制動作用。在該制動本體的維修 、清理或更換作業中，該固持器環必須要透過轉動該心軸 來做較遠距離的調整，直到該制動本體離開該儲放本體的 抽拉末端。其後，相同的程序必須要重覆施行，以將制動 本體以正確的接觸壓力設置於該儲放本體的抽拉末端上。 這些程序是相當耗費的，且可能會造成對於制動作用不當 的調整結果。 專利文獻WO 2006/048053號是有關於一種給紗裝置 1354042 ，包含有——紗線制動器，其具有一圓錐狀彈性的制動本 體，可軸向而彈性地配合於儲放本體的抽拉末端作動。該 制動本體會被互斥的永久磁鐵設施加以推離一支撐部而抵 壓於該抽拉末端上。一承載著該支撐部之永久磁鐵設施（ 單體永久磁鐵件或永久磁鐵環）的環狀固持器，係固定在 一滑件上，其可在該外殼臂部內沿著軸向方向逐步地調整 。在第5圖至第7圖的實施例中，該固持器支撐一籃狀物 ，承載著該支撐部的永久磁鐵設施。一圓錐狀的內側籃狀 物鬆弛地套設於該外側籃狀物上。此內側籃狀物上設置著 該制動本體的永久磁鐵設施。該制動本體的小直徑末端是 卡扣於該內側籃狀物的小直徑末端上》 專利文獻EP 0 534 263 A號是有關於一種給紗裝置， 具有一紗線制動器，其設有一大致上呈圓錐狀的制動本體 。該制動本體係被支撐於一彈簧設施的小直徑末端上。該 彈簧設施係固定至一環狀的固持器上。該環狀的固持器係 可透過外殼臂部內的滑件及螺紋心軸來沿著儲放本體的軸 向方向做調整。 專利文獻US-A-6,164,5 80號是有關於一種給紗裝置， 具有一紗線制動器，其設有一圓錐狀的制動本體。該紗線 制動本體是由一萬用型接頭加以鬆弛地支撐於一紗線抽拉 管上。該制動本體的小直徑末端是由支撐部上的彈簧設施 加以做軸向推壓。該彈簧設施的另一側末端抵靠於一環圏 上，該環圈係被支撐成無法在該支撐部做相對轉動。該紗 線抽拉管具有一旋鈕，設於該支撐部的自由末端上，以供 -5- 1354042 相對於該環圈來轉動該紗線抽拉管，以調整彈簧負載。 專利文獻wo 97/03908-A號是有關於一種給紗裝置， 包含有一-紗線制動器，設有一截頭圓錐狀制動本體，其係 由一彈性伸縮囊支撐大直徑末端。該伸縮囊係固定在一固 持器環上，該固持器環則是固定於一外殼臂部內的滑件上 。該滑件的軸向位置可由一軸向延伸的螺紋心軸加以做逐 步的調整，該螺紋心軸係設置於外殻內，並在外殼臂部的 自由末端處設有一旋鈕。再者，該外殼臂部包含有一快速 調整總成，用以將該滑件沿著軸向移動通過大的行程。該 快速調整總成具有一側向突出的握把，及一環圈，經由一 銷/槽結合部結合至該外殼臂部上。操作該握把可將該螺 紋心軸隨著該滑件軸向位移通過該大行程，以將該制動本 體相對於該儲放本體的抽拉末端定位於一間隙位置上。該 快速調整總成必須要能在二行程方向上操作，亦即將該制 動本體定位於該間隙位置及將該制動本體返回到初始位置 上。在將該制動本體返回至初始位置上時，先前透過該心 軸之轉動位置調整好的制動作用必須要重新建立。實務上 已證實’在維修程序、清潔過程、紗線穿引步驟之後，或 是在更換制動本體後，操作員容易忘掉將制動本體退回到 初始位置上。 【發明內容】 本發明之目的是要提供一種給紗裝置，具有一透過互 斥永久磁鐵操作的紗線制動器，具有合適、功能良好而價 -6- 1354042 格公道的機構，可用以逐步調整制動力量及供維修程序、 清潔過程、或制動本體更換此，或是穿引紗線通過紗線制 動器用的快速調整之甩。 此目的可由申請專利範圍第1項的特點來加以達成。 爲能正確地調整制動作用，亦即在一種供編織機使用 而軸向力量僅有幾公克之給紗裝置的情形中，支撐部的永 久磁鐵設施的相對軸向位置可透過螺紋裝置來加以逐步地 改變。這可供精確而可重現地調整制動本體與儲放本體的 油拉末端之間的制動作用。在需要進行維修程序、清潔過 程、或更換制動本體，或是將紗線穿引通過紗線制動器時 ’快速調整總成係代替該螺紋裝置來被操作，以供將該支 撐部的永久磁鐵設施與該螺紋裝置一起快速地在該支撐部 內移動通過一段延伸超過該螺紋裝置的數個螺紋節距的大 行程，例如可透過舒適而快速的單手操作來達成之。該支 撐部的該永久磁鐵設施在該支撐部內之遠離於該制動本體 之永久磁鐵設施的軸向行程係可抵消作用於該制動本體上 的推壓力量。再者，由該快速調整總成用於該螺紋裝置上 而與該支撐部之永久磁鐵設施軸向移動相同方向的該螺紋 裝置軸向行程，可釋放開該制動本體的小直徑末端，及/ 或將該制動本體相對於儲放本體的抽拉末端移動至一間隙 位置。此動作分別可提供較無障礙地進出該制動本體的內 部及/或該制動本體的小直徑末端。位在作業位置上是由 永久磁鐵設施的接觸壓力及推壓力量加以固定在位於該抽 拉末端與該支撐部之間的定位的制動本體，即可輕易地取 1354042 下’以供更換。稍後只要需要將該制動本體重新設置至該 作業位置時’先前選取的正確制動作用設定即可再次建立 。相較於爲相_當目的而致動螺紋裝置而言，此種快速調整 總成的致動是舒適的，並可節省相當大量的時間。 此種螺紋裝置與快速調整總成的結合可供舒適地進行 二種不同的作業’亦即藉由該螺紋裝置之助而逐步及精確 地調整制動作用，或是抵消永久磁鐵設施的推壓力量而移 • 離該螺紋裝置’以供進行維修程序、清潔過程、更換制動 本體、或新紗線的穿引程序。快速調整總成的操作不會改 變先前的制動作用設定。快速調整總成的致動能以單手快 速地進行’因爲該快速調整總成並非供制動作用的精密調 、整之用，而是一種供在正常或非正常情形中會發生的緊急 狀況中用的協助性工具。該二種總成的結合能以公道的價 格達成之，並得到密集式而可靠的紗線制動器，其可完美 地配合於實務需求，並滿足於高的使用者需求。 • 只要調整總成與快速調整總成共用該支撐部內的零組 件，該紗線制動器即可以公道的價格來達成之。此種結果 ’以及該紗線制動器的小型化尺寸，可以說是因爲該二總 成互相結合在一起之故。 該快速調整總成可以方便地以手動方式沿著一軸向行 程方向而抵抗彈簧力量來加以操作，並可在該快速調整總 成被操作員釋放開時，由彈簧力量自動地將該支撐部的永 久磁鐵設施及該螺紋裝置加以返回到初始位置。這是特別 地有用，因爲實務上已證實操作員常常會忘掉將制動本體 -8- 1354042 手動歸回到正確的作業位置，造成紗線制動器經常性的故 障及製造出的紡織品上的瑕疵》 在一較佳實施例中，範-圍第3項所述之給紗裝置，其 特徵在於必須要以手動操作的行程方向，是朝向遠離於該 儲放本體的抽拉末端。但是也可以藉由彈簧力量將該快速 調整總成裝設至相對的行程位置處。 在另一較佳實施例中’該調整總成及該快速調整總成 包含有共用的致動元件。這可使其能減少紗線制動器的零 件數量。很方便地，在調整制動作用時，可以轉動該致動 元件來進行逐步而精密的調整。在需要將支撐部的永久磁 鐵設施及螺紋裝置加以軸向移動通過該大軸向行程時，該 共用的致動元件會替代性地做軸向位移，亦即由一手加以 相對於支撐部拉引。 在一較佳實施例中，該二總成的致動元件係一可以輕 易操作的旋動暨拉引鈕。此鈕係相對於該紗線制動器及該 儲放本體做同軸設置，並設有一紗線通道。方便地，該鈕 可設於該支撐部上遠離於該儲放本體的末端上。但是也可 以將該鈕設置於該支撐部上的另外的位置處，例如更靠近 於該制動本體處。 在另一較佳實施例中，該支撐部是一環狀的外殼，其 係一體結合於外殼臂部上，或是裝設於該外殼臂部上。該 外殻內容設一紗線抽拉管，以供在無任何障礙下導引紗線 通過。此紗線抽拉管上可以設有一紗線眼孔，如同習用的 —樣，以減低紗線的機械性負載，並提供平順地轉換。如 -9 - 135.4042 此，該紗線制動器可以是此給紗裝置內的一個完整的預組 次單元。 方便地，該致動元件是直接設置在紗線抽拉管上’最 好甚至是與該紗線抽拉管成爲一體整合在一起。 在一較佳實施例中，在該作業位置上，該制動本體係 透過紗線抽拉管之定位末端上的萬用型接頭而鬆弛地設置 。該定位末端係面對著該儲放本體。該支撐部的永久磁鐵 設施係與可轉動地設置於外殼內的紗線抽拉管做螺紋嚙合 ，並且可以抵抗該彈簧力量而做軸向位移。該彈簧力量可 將未致動的快速調整總成及螺紋裝置加以固持在初始位置 上。方便地，該彈簧力量大於該制動本體與該儲放本體的 抽拉末端間的接觸壓力。 在一較佳實施例中，在紗線抽拉管及支撐部的永久磁 鐵設施遠離於儲放本體處的一側，設有止擋元件。此止擋 元件可將一管殼軸向定位於紗線抽拉管上。該管殼環繞著 該紗線抽拉管及至少支撐部的永久磁鐵設施，最好是甚至 環繞著該制動本體的永久磁鐵設施，以使得線頭及其他的 污染物能被阻擋侵入管殼的內部。至少一軸向作動的彈簧 設置於該支撐部內，並將該管殼沿著軸向方向加以推壓。 該管殻係可軸向移動地設置於該支撐部內，並被阻止相對 於支撐部轉動。 在一較佳實施例中，該支撐部的永久磁鐵設施係裝設 成可軸向移動，但會被該止擋元件及/或該管殼阻止相對 於該支撐部轉動。雖然該紗線抽拉管要轉動來調整制動作 -10- 1354042 用，但是該支撐部的永久磁鐵設施並不會隨之一起轉動， 而會因紗線抽拉管與該永久磁鐵設施間的螺紋嚙合而做軸 向移動。 - 在另一實施例中，該支撐部的永久磁鐵設施係設置於 一固持器環內’最好是黏附於該固持器環內。該固持器環 具有內側螺紋’螺合於紗線抽拉管的外側螺紋。該固持器 環可有助於正確地固定永久磁鐵設施，並可在該等調整總 成之任一者操作時，作爲一個能施加軸向移動至該永久磁 鐵設施上的零組件。 該管殼設有至少一軸向導引部，用以導引一設置於固 持器環上的導引元件。該導引部最好是一軸向導引槽，與 —形成於固持器環周邊上的導引突起嚙合。該導引突起與 導引槽間的嚙合關係可在紗線抽拉管轉動時阻止該固持器 環相對於該支撐部轉動，並可供固持器環做平順的軸向移 動。該旋動暨拉引鈕設有沿著環周方向配設之供手抓持用 的抓持構件，並且最亦設有至少一沿著環周方向延伸的拉 引突部。操作員即使是以潮濕或油腻的手亦可舒適地操作 該二調整總成。 在一較佳實施例中，一旋轉棘輪機構設置於該旋動暨 拉引鈕與該支撐部的外殻之間。該旋轉棘輪機構可以讓制 動作用的調整結果重現。在該旋動暨拉引鈕與外殼上各別 設置的標記可供以視覺監控調整作業的進行。 在一較佳實施例中，儲放本體之抽拉末端與支撐部之 外殼間的軸向距離短於制動本體在接觸到抽拉末端時延伸 -11 - 1354042 進入至支撐部之外殼內的尺寸。這可確保該制動本體至少 在作業位置上時是不會意外地掉落的。但是’該軸向距離 是選定成能在該快速調整-總成啓動時’可保證能進行必要 的出入動作，且該制動本體隨後可輕易地拆除。 在再另一較佳實施例中，該快速調整總成被啓動時所 進行的行程是大於制動本體之小直徑末端與紗線抽拉管之 定位末端間的軸向重疊部位，該軸向重疊係存在於該制動 本體的任何作業位置上，也就是當該制動本體接觸著該抽 拉末端。透過快速調整總成的該大的行程，其可以克服該 重疊部位，使得制動本體能輕易地拆除，並將新的制動本 體舒適地插入。 接下來將配合於圖式來說明本發明的一實施例。 【實施方式】 第1圖中的給紗裝置F是供於紡織機器內運轉的，例 如一編織機或一梭織機。所示的給紗裝置F是例如供應用 於一圓編機內’用以暫時地儲放一紗線，並在需要時將紗 線進給至一未顯示的編織系統內。 此給紗裝置F具具有外殼丨及沿著一固定不動之圓鼓 狀儲放本體3做軸向延伸的外殻臂部2。外殼臂部2的自 由末端向下彎折，並承載著一紗線制動器B及一紗線導引 元件8 (紗線眼孔）。一捲繞元件4可由一設置於外殼】 內而未顯示出的電動馬達加以相對於該固定不動之儲放本 體3轉動。儲放本體3具有一外突圓滑狀抽拉末端3a。紗 -12- 1354042 線制動器B包含有一略呈圓錐狀的制動本體5，其圓錐軸 線係大致上重合於儲放本體3的軸線X。制動本體5設有 一較大直徑末端，覆蓋於抽拉末端3 a-上，並可順服地軸 向壓迫該抽拉末端3a，以針對自儲放本體3的周邊上的捲 繞包裝內經由該抽拉末端3a抽拉出，並通過制動本體5 的內側表面與抽拉末端3 a間之制動挾口的紗線，來建立 制動作用。 詳細地說，在編織機內，紗線的制動作用必須要能精 確地調整’並可能僅能由幾公克的軸向接觸壓力來達成。 紗線制動器B具有一固定不動的支撐部6，裝設於或 結合於外殼臂部2的自由末端上。該支撐部6容納一可逐 步調整制動作用之調整總成E及一快速調整總成Q，其可 將支撐部6內部零件移動經過大行程來例如提供對於制動 本體5內側或是制動本體5之小直徑末端與支撐部6間之 區域的進出，以供進行例如維修程序、清潔過程、或更換 制動本體5，或是將新的紗線穿過紗線制動器b。此二調 整總成E、Q具有共用的致動元件7，其在所示的實施例 中是一旋動暨拉引鈕19，其內裝設著該紗線導引元件8。 此旋動暨拉引鈕19係可選擇性地轉動，以致動該調整總 成E’或是自支撐部6軸向向外拉引，以致動快速調整總 成Q。旋動暨拉引鈕19的周邊上設有沿環周分佈以供轉 動用抓持構件9，以及至少一沿著環周方向延伸以供拉引 動作用的拉引突部10。旋動暨拉引鈕19甚至可以手動向 後推壓至所示的初始位置。在支撐部6的下方區域內，設 -13- 1354042 有—供信號燈用的透明蓋11。給紗裝置F可以由外殻1 的固定部12加以裝設於一未顯示的拖架結構上。 第2圖是例如裝設於第1眉之給紗裝置F內的紗線制 動器B的水平軸向剖面圖。圓錐狀制動本體5具有一小直 徑末端13，其最好是鬆驰地固定於一內側漏斗狀環14及 —外側L狀環15之間。此二環14、1 5可以透過卡扣連接 部而方便地連接在一起。內側環14具有一外突弧狀內側 表面16，可如同一萬用型接頭般地配合一紗線抽拉管18 的圓柱狀定位末端1 7 ’該紗線抽拉管構成一貫穿過紗線制 動器B的軸向紗線通道。該內側環14係鬆弛地設置於定 位末端1 7上’亦即具有徑向餘隙。外側環丨5承載著該制 動本體5的一永久磁鐵設施pi，亦即數個沿著環周方向 配置的單一永久磁鐵塊或是一沿著環周方向連續的永久磁 鐵環。致動元件7，亦即旋動暨拉引鈕1 9，是連接至紗線 抽拉管1 8的自由末端上，最好是與紗線抽拉管1 8形成爲 一體’並係設置於支撐部6上遠離於制動本體5的自由末 端上。 紗線抽拉管1 8設有外部或外側螺紋1 8 a，其可螺旋嚙 合於支撐部6的一永久磁鐵設施P2。永久磁鐵設施P2同 樣亦可由多個沿著環周方向配置的單個永久磁鐵塊，或者 如圖所示’由一沿著環周方向連續的永久磁鐵環所構成。 支撐部6的永久磁鐵設施P2是固定於一固持器環20上， 最好是黏附於固持器環20內。固持器環20具有一 U形截 面，以及內側螺紋2 1，嚙合於紗線抽拉管1 8的外側螺紋 -14- 1354042 支撐部6是一環狀的外殼28，環繞著管殻24。該外 殼28上沿著環周方向配置的軸向盲孔29內容納著壓縮彈 簧30。管殼24的每—根銷27均是插入在一彈簧30及盲 孔29內’以使得該管殼24會被沿著軸向推壓（在第2圖 內是朝向左側），直到突緣26牢固地抵靠在止擋元件23 上。 在第2圖中’制動本體5係以可能的最弱軸向力量沿 φ 著軸向順服地壓抵於儲放本體3的抽拉末端3a上，因爲 固持器環20是抵靠在止擋元件23上。要加大推壓力量（ 制動力量），鈕19要旋轉來將固持器環20移動至第2圖 -中的左側。 . 當需有進行維修程序、清潔過程、或更換制動本體5 ' ’或是將新的紗線穿過紗線制動器B時，可藉由在第2圖 內朝向右側拉引該旋動暨拉引鈕一段大的軸向行程，並抵 抗彈簧30的力量，例如直到管殼24抵靠至外殻28上爲 • 止’以致動該快速調整總成Q。此拉引動作不僅會改變固 持器環20與支撐部6之永久磁鐵設施P2的相對軸向位置 ，亦會改變管殼24與紗線抽拉管1 8相對於支撐部6的相 對軸向位置。然後，永久磁鐵設施PI、P2不會再互相推 斥’而制動本體5將僅是保持掛在抽拉末端3a上。再者 ，定位末端1 7可被抽拉出內側表面1 6外，或是整個制動 本體5被拉離儲放本體3，亦即仍然掛在定位末端17及抽 拉末端3a上。制動本體5的釋放開可供清潔制動本體5 的內部或是外側環1 5的區域、進行維修程序、將新的紗 -16- 1354042 線穿過紗線制動器B、或是拆下制動本體5並插設另一者 〇 支撐部6與儲放本體3間的軸向距離可以設定成讓制 動本體5不會在最小制動作用的情形下不慎地脫落。再者 ，快速調整總成Q所施用的軸向行程是大於內側表面16 與定位末端17間的軸向重疊部位的尺寸，同時也大於螺 紋裝置18a、21的數個連續的螺紋節距，以使得制動本體 5能輕易地拆卸。 旋動暨拉引鈕19必須要用手握持在拉引開的位置上 (第2圖中的右側），直到各項處理作業完成，或是制動 本體5更換完成。當旋動暨拉引鈕19由操作員的手上放 開時，彈簧30會自動地調整位置成第2圖中所示者，意 即可重新建立先前所調整好的制動作用（固持器環20的 軸向相對位置）。但是’如有必要，鈕1 9也可被推壓回 到第2圖的初始位置。 第3圖是第1圖中一大致上垂直的截面平面上的軸向 剖面，顯示出一光源33位於設在外殼28下方側的透明蓋 11的底側。外殼28可以是與外殻臂部2之向下彎折末端 一體結合在一起，或是透過具有安裝孔32的耳部31裝設 於外殼臂部2上。另外’爲能指示操作員該旋動暨拉引鈕 19的轉動調整程度，在外殻28與旋動暨拉引鈕19可設置 —旋轉棘輪機構39。甚至也可以在鈕19及外殻28上設置 標記，以有助於可重現的制動作用調整作業。 第4圖顯示出設有四根沿著環周方向配置之銷27的 -17- 1354042 管殼24。在此情形中，外殼28亦設有四個盲孔29。管殼 24具有至少一個軸向導引部34，例如一軸向延伸的導引 槽35，其開始於突緣26處而中止於距前側末端25 —段距 離處，以供軸向導引在周邊上形成有至少一導引突起38 的固持器環20(第5圖）。導引突起38嚙合於導引槽35 內’並阻止固持器環20相對於管殼24轉動。內螺紋21 係形成於固持器環20的內徑區域上。爲有助於安裝及拆 卸永久磁鐵設施P2，可以在用以容納永久磁鐵設施P2的 固持器環2〇之一溝槽36的底部開設一窗口 37。 1 明 說 單 簡 式 圖 第1圖是一給紗裝置的外觀圖，特別是供編織機用的 給紗裝置。 第2圖是紗線制動器的縱向剖面圖，例如應用於第！ 圖之給紗裝置內者。 第3圖是紗線制動器的剖面，其相對於第2圖中的剖 面平面，是位於一環周分離開的平面剖面上。 第4圖是紗線制動器之細部的外觀圖》 第5圖是紗線制動器另外的細部的外觀圖。 【主要元件符號說明】 1 :外殼 2 :外殻臂部 3 :儲放本體 -18- 1354042 3a :抽拉末端 4 :捲繞元件 5 :制動本體 - 6 :支撐部 7 :致動元件 8 :紗線導引元件 9 :抓持構件 10 :拉引突部 φ 1 1 :透明蓋 12 :固定部 1 3 :小直徑末端 1 4 :內側環 1 5 :外側環 ^ 1 6 :內側表面 1 7 :定位末端 1 8 :紗線抽拉管 籲 18a :外側螺紋 19 :旋動暨拉引鈕 2 0 :固持器環 2 1 :內側螺紋 2 2 :溝槽 23 :止擋元件 24 :管殼 2 5 :前側末端 -19-139. The invention relates to a yarn feeding device according to the preamble of the first aspect of the patent application. [Prior Art] A yarn brake in a φ-feeding device is disclosed in the patent document DE-A-10 2006 001 125. The conical elastic brake is fixed to a retainer ring by a snap connection. The brake body and the retainer ring are provided with mutually repulsive permanent magnet devices, each of which is composed of a plurality of single permanent magnet members or a permanent magnet ring arranged along the circumference-direction. . The retainer ring is secured to a slider disposed on the arm portion of the housing. The 'slider' is adjustable along the axial direction of the storage body by a threaded spindle that is rotatably supported on the arm of the housing. The mandrel is coupled to a knob on the free end of the arm of the housing for stepwise adjustment of the relative axial position of the permanent magnet φ device of the retainer ring to change the brake body and the storage body Braking action between the ends of the pull. In the maintenance, cleaning or replacement operation of the brake body, the retainer ring must be adjusted by rotating the spindle for a longer distance until the brake body leaves the pull end of the storage body. Thereafter, the same procedure must be repeated to set the brake body to the pull end of the storage body with the correct contact pressure. These procedures are quite expensive and may result in improper adjustments to the brakes. Patent document WO 2006/048053 relates to a yarn feeding device 1354402 comprising a yarn brake having a conical elastic brake body that can be axially and elastically fitted to the drawing end of the storage body. . The brake body is pushed away from a support portion by a mutually repelling permanent magnet assembly against the pull end. An annular retainer carrying a permanent magnet device (single permanent magnet member or permanent magnet ring) of the support portion is fixed to a slider which can be adjusted stepwise in the axial direction in the arm portion of the housing . In the embodiment of Figures 5 to 7, the holder supports a basket carrying the permanent magnet arrangement of the support. A conical inner basket is loosely sleeved over the outer basket. A permanent magnet arrangement of the brake body is disposed on the inner basket. The small-diameter end of the brake body is fastened to the small-diameter end of the inner basket. The patent document EP 0 534 263 A relates to a yarn feeder device having a yarn brake provided with a substantially Conical brake body. The brake system is supported on a small diameter end of a spring assembly. The spring device is attached to an annular retainer. The annular retainer is adjustable along the axial direction of the storage body through the slider and the threaded spindle in the arm of the housing. The patent document US-A-6, 164, 580 relates to a yarn feeder device having a yarn brake provided with a conical brake body. The yarn brake body is loosely supported by a universal joint on a yarn drawing tube. The small diameter end of the brake body is axially urged by a spring arrangement on the support. The other end of the spring assembly abuts against a ring that is supported so as not to be relatively rotatable about the support. The yarn drawing tube has a knob disposed on the free end of the support portion for the -5-1354042 to rotate the yarn drawing tube relative to the loop to adjust the spring load. The patent document WO 97/03908-A relates to a yarn feeding device comprising a yarn brake which is provided with a frustoconical brake body which supports a large diameter end by an elastic bellows. The bellows is secured to a retainer ring that is secured to a slider within an outer arm portion. The axial position of the slider can be adjusted stepwise by an axially extending threaded mandrel disposed within the housing and having a knob at the free end of the arm portion of the housing. Further, the outer casing arm includes a quick adjustment assembly for moving the slider in the axial direction through a large stroke. The quick adjustment assembly has a laterally projecting grip and a loop that is coupled to the outer casing arm via a pin/slot joint. Operating the grip can axially displace the threaded mandrel with the slider axially to position the brake body relative to the pull end of the storage body at a gap position. The quick adjustment assembly must be operable in the two stroke direction, that is, the brake body is positioned at the gap position and the brake body is returned to the initial position. When the brake body is returned to the initial position, the braking action previously adjusted by the rotational position of the mandrel must be re-established. In practice, it has been proven that the operator can easily forget to return the brake body to its original position after the maintenance procedure, the cleaning process, the yarn threading step, or after replacing the brake body. SUMMARY OF THE INVENTION It is an object of the present invention to provide a yarn feeding device having a yarn brake that is operated by a mutually exclusive permanent magnet, and has a suitable and functional mechanism with a price of -6 - 1354042, which can be used to gradually adjust the brake. Strength and maintenance procedures, cleaning process, or brake body replacement, or quick adjustment of the thread through the yarn brake. This purpose can be achieved by the features of item 1 of the scope of the patent application. In order to be able to adjust the braking effect correctly, that is to say in the case of a yarn feeding device for the knitting machine which has an axial force of only a few grams, the relative axial position of the permanent magnet arrangement of the support portion can be stepped through the threaded device. Change. This makes it possible to precisely and reproducibly adjust the braking action between the brake body and the oil pull end of the storage body. When a maintenance procedure, a cleaning process, or replacement of the brake body is required, or the yarn is threaded through the yarn brake, a quick adjustment assembly is operated in place of the threaded device for permanent magnet installation of the support portion. Together with the threaded device, it is quickly moved within the support through a length of travel that extends over a number of thread pitches of the threaded device, for example, by a comfortable and fast one-handed operation. The axial travel of the permanent magnet assembly of the support portion in the support portion away from the permanent magnet assembly of the brake body compensates for the amount of urging force acting on the brake body. Furthermore, the axial adjustment of the threaded device in the same direction as the axial movement of the permanent magnet assembly of the support portion by the quick adjustment assembly can release the small diameter end of the brake body, and / Or moving the brake body relative to the pull end of the storage body to a gap position. This action provides a relatively unobstructed access to the interior of the brake body and/or the small diameter end of the brake body, respectively. Positioned in the working position by the contact pressure and the amount of pressing force of the permanent magnet device, the brake body is fixed between the drawing end and the supporting portion, and can be easily taken for replacement. Later, as long as the brake body needs to be reset to the working position, the previously selected correct braking action setting can be established again. The actuation of such a quick adjustment assembly is comfortable compared to the actuating of the threaded device for the purpose, and can save considerable time. The combination of such a threaded device and the quick-adjustment assembly allows for two different operations to be comfortably performed', ie, the braking action is gradually and accurately adjusted by the aid of the threaded device, or the amount of pressing force of the permanent magnet device is offset. Move away from the threaded device' for service procedures, cleaning procedures, replacement of the brake body, or threading of new yarns. The operation of the quick adjustment assembly does not change the previous brake action setting. The quick-adjustment assembly's actuation can be performed quickly with one hand' because the quick-adjustment assembly is not used for the precise adjustment of the braking effect, but for an emergency situation that can occur in normal or abnormal situations. Assistive tool. The combination of the two assemblies can be achieved at a fair price and with a dense and reliable yarn brake that perfectly matches the practical needs and meets the needs of high users. • The yarn brake can be achieved at a fair price as long as the adjustment assembly shares the zero assembly in the support with the quick adjustment assembly. The result of this and the miniaturized size of the yarn brake can be said to be because the two assemblies are combined with each other. The quick adjustment assembly can be conveniently operated manually in an axial stroke direction against the force of the spring, and can be automatically activated by the spring force when the quick adjustment assembly is released by the operator. The permanent magnet assembly and the threaded device are returned to the initial position. This is particularly useful because it has been proven in practice that the operator often forgets to manually return the brake body-8-1354042 to the correct working position, causing frequent failures of the yarn brakes and manufacturing defects on the textile. In a preferred embodiment, the yarn feeding device of the third aspect of the invention is characterized in that the stroke direction which must be manually operated is toward the drawing end away from the storage body. However, it is also possible to mount the quick adjustment assembly to the relative stroke position by the force of the spring. In another preferred embodiment, the adjustment assembly and the quick adjustment assembly include a common actuation element. This allows it to reduce the number of parts of the yarn brake. Conveniently, the actuating element can be rotated for progressive and precise adjustment when adjusting the braking action. When the permanent magnet arrangement and the threading device of the support portion need to be axially moved through the large axial stroke, the common actuating element will alternatively be axially displaced, that is, pulled by one hand relative to the support portion. . In a preferred embodiment, the actuating element of the two assemblies is a swivel and pull button that can be easily operated. The button is coaxially disposed relative to the yarn brake and the storage body and is provided with a yarn passage. Conveniently, the button can be disposed on the support portion away from the end of the storage body. However, the button can also be placed at another location on the support, such as closer to the brake body. In another preferred embodiment, the support portion is an annular outer casing that is integrally attached to the outer casing arm or to the outer casing arm. The outer casing is provided with a yarn drawing tube for guiding the yarn through without any obstacles. A yarn eyelet can be provided on the yarn drawing tube, as is conventional, to reduce the mechanical load of the yarn and provide a smooth transition. For example, -9 - 135.4042, the yarn brake can be a complete pre-assembly unit within the yarn feeder. Conveniently, the actuating element is disposed directly on the yarn draw tube' preferably even integrated with the yarn draw tube. In a preferred embodiment, in the working position, the brake system is loosely disposed through a universal joint on the locating end of the yarn draw tube. The positioning end faces the storage body. The permanent magnet assembly of the support is threadedly engaged with a yarn draw tube rotatably disposed within the outer casing and is axially displaceable against the spring force. This spring force holds the unactuated quick adjustment assembly and threading device in the initial position. Conveniently, the spring force is greater than the contact pressure between the brake body and the pull end of the storage body. In a preferred embodiment, a stop element is provided on the side of the yarn drawing tube and the permanent magnet assembly of the support portion remote from the storage body. The stop element axially positions a casing on the yarn drawing tube. The casing surrounds the yarn drawing tube and at least the permanent magnet arrangement of the support portion, preferably even surrounding the permanent magnet arrangement of the brake body, so that the wire ends and other contaminants can be blocked from invading the casing internal. At least one axially actuated spring is disposed within the support portion and urges the envelope in an axial direction. The envelope is axially movably disposed within the support and is prevented from rotating relative to the support. In a preferred embodiment, the permanent magnet assembly of the support portion is mounted for axial movement but is prevented from rotating relative to the support portion by the stop member and/or the tubular housing. Although the yarn drawing tube is to be rotated to adjust the movement -10- 1354042, the permanent magnet assembly of the support portion does not rotate together, but is caused by the yarn drawing tube and the permanent magnet facility. The threads engage to move axially. - In another embodiment, the permanent magnet arrangement of the support portion is disposed within a retainer ring & preferably adheres within the retainer ring. The retainer ring has an inner thread 'spinned to the outer thread of the yarn draw tube. The retainer ring can assist in properly securing the permanent magnet assembly and can act as a component that can be moved axially to the permanent magnet assembly when operated by either of the adjustment assemblies. The envelope is provided with at least one axial guide for guiding a guiding element disposed on the retainer ring. Preferably, the guiding portion is an axial guiding groove that engages with a guide projection formed on the periphery of the retainer ring. The engagement relationship between the guide projection and the guide slot prevents the retainer ring from rotating relative to the support portion as the yarn draw tube rotates and provides a smooth axial movement of the retainer ring. The rotation and pull button is provided with a grip member for gripping in the circumferential direction, and is also provided with at least one pull projection extending in the circumferential direction. The operator can comfortably operate the two adjustment assemblies even with wet or greasy hands. In a preferred embodiment, a rotating ratchet mechanism is disposed between the swivel and pull button and the outer casing of the support portion. The rotating ratchet mechanism allows the adjustment of the braking action to be reproduced. Marks are provided on the swivel and pull buttons and on the outer casing for visual monitoring and adjustment work. In a preferred embodiment, the axial distance between the drawing end of the storage body and the outer casing of the support portion is shorter than the size of the brake body extending -11 - 1354042 into the outer casing of the support portion when contacting the drawing end. . This ensures that the brake body does not accidentally fall at least in the working position. However, the axial distance is selected to enable the necessary access during the quick adjustment-assembly start, and the brake body can then be easily removed. In still another preferred embodiment, the stroke of the quick adjustment assembly when activated is greater than an axial overlap between the small diameter end of the brake body and the positioning end of the yarn drawing tube, the axial overlap It is present at any working position of the brake body, that is, when the brake body contacts the pull end. By quickly adjusting the large stroke of the assembly, it is possible to overcome the overlap so that the brake body can be easily removed and the new brake body can be comfortably inserted. An embodiment of the present invention will now be described in conjunction with the drawings. [Embodiment] The yarn feeding device F in Fig. 1 is for operation in a textile machine, such as a knitting machine or a shuttle loom. The yarn feeder F is shown, for example, for use in a circular knitting machine to temporarily store a yarn and feed the yarn to an undisplayed knitting system as needed. The yarn feeding device F has a casing arm 2 and an outer casing arm portion 2 extending axially along a fixed circular drum-shaped storage body 3. The free end of the outer casing arm 2 is bent downward and carries a yarn brake B and a yarn guiding member 8 (yarn eyelet). A winding member 4 is rotatable relative to the stationary storage body 3 by an electric motor (not shown) disposed in the housing. The storage body 3 has an outwardly projecting pull end 3a. Yarn -12- 1354042 The line brake B includes a slightly conical brake body 5 having a conical axis that substantially coincides with the axis X of the storage body 3. The brake body 5 is provided with a larger diameter end covering the drawing end 3 a- and compressively axially pressing the drawing end 3a for passage through the winding package on the periphery of the storage body 3 The drawing end 3a is pulled out and the braking action is established by the yarn of the brake port between the inner side surface of the brake body 5 and the drawing end 3a. In detail, in the knitting machine, the braking action of the yarn must be precisely adjusted' and may only be achieved by an axial contact pressure of a few grams. The yarn brake B has a fixed support portion 6 attached to or coupled to the free end of the outer casing arm portion 2. The support portion 6 accommodates an adjustment assembly E for gradually adjusting the braking action and a quick adjustment assembly Q, which can move the internal parts of the support portion 6 through a large stroke, for example, for the inner side of the brake body 5 or the brake body 5 The entry and exit of the area between the small diameter end and the support portion 6 is performed for, for example, a maintenance procedure, a cleaning process, or replacement of the brake body 5, or a new yarn is passed through the yarn brake b. The two adjustment assemblies E, Q have a common actuating element 7, which in the illustrated embodiment is a swivel and pull button 19 in which the yarn guiding element 8 is mounted. The swivel and pull button 19 is selectively rotatable to actuate the adjustment assembly E' or to pull axially outwardly from the support portion 6 to actuate the quick adjustment assembly Q. The periphery of the turning and pulling button 19 is provided with a gripping member 9 distributed around the circumference for the rotation, and at least one pulling projection 10 extending in the circumferential direction for the pulling action. The swivel and pull button 19 can even be manually pushed back to the initial position shown. In the lower region of the support portion 6, a -13 - 1354042 is provided - a transparent cover 11 for the signal lamp. The yarn feeding device F can be attached to an undisplayed carriage structure by the fixing portion 12 of the outer casing 1. Fig. 2 is a horizontal axial sectional view showing, for example, the yarn brake B installed in the yarn supplying device F of the first eyebrow. The conical brake body 5 has a small diameter end 13 which is preferably loosely secured between an inner funnel ring 14 and an outer L-shaped ring 15. The two rings 14, 15 can be conveniently connected together through the snap connection. The inner ring 14 has an outer curved inner side surface 16 which can be fitted to the cylindrical positioning end of the yarn drawing tube 18 as a universal joint. The yarn drawing tube is formed to consistently pass through the yarn. Axial yarn passage of brake B. The inner ring 14 is loosely disposed on the positioning end 17', i.e., has a radial clearance. The outer ring 5 carries a permanent magnet arrangement pi of the brake body 5, i.e., a plurality of single permanent magnet blocks disposed along the circumferential direction or a permanent magnet ring continuous along the circumferential direction. The actuating element 7, i.e., the swivel and pull button 159, is attached to the free end of the yarn drawing tube 18, preferably integrally formed with the yarn drawing tube 18' The support portion 6 is remote from the free end of the brake body 5. The yarn drawing tube 18 is provided with an outer or outer thread 18 a which can be screwed into a permanent magnet arrangement P2 of the support portion 6. The permanent magnet assembly P2 may also be composed of a plurality of individual permanent magnet blocks arranged along the circumferential direction or as shown by a permanent magnet ring continuous along the circumferential direction. The permanent magnet assembly P2 of the support portion 6 is fixed to a retainer ring 20, preferably adhered to the retainer ring 20. The holder ring 20 has a U-shaped cross section, and the inner thread 2 1 is engaged with the outer thread of the yarn drawing tube 18 - 14 - 1354042. The support portion 6 is an annular outer casing 28 surrounding the envelope 24. The axial blind hole 29 disposed on the outer casing 28 along the circumferential direction houses the compression spring 30. Each of the pins 27 of the casing 24 is inserted into a spring 30 and a blind hole 29 so that the casing 24 is pushed in the axial direction (in the second figure toward the left side) until the flange 26 rests firmly against the stop element 23. In Fig. 2, the 'brake body 5 is pressed into the drawing end 3a of the storage body 3 in a compliant axial direction with the weakest axial force possible because the retainer ring 20 is abutted against the stop. On element 23. To increase the amount of pushing force (braking force), the button 19 is rotated to move the holder ring 20 to the left side of FIG. When it is necessary to carry out the maintenance procedure, the cleaning process, or to replace the brake body 5 ' ' or to pass a new yarn through the yarn brake B, the rotation can be pulled by pulling it toward the right side in Fig. 2 The button has a large axial travel and resists the force of the spring 30, for example until the casing 24 abuts against the outer casing 28 to actuate the quick adjustment assembly Q. This pulling action not only changes the relative axial position of the retainer ring 20 and the permanent magnet arrangement P2 of the support portion 6, but also changes the relative axial position of the envelope 24 and the yarn drawing tube 18 relative to the support portion 6. . Then, the permanent magnet devices PI, P2 will no longer repel each other' and the brake body 5 will only remain attached to the drawing end 3a. Furthermore, the positioning end 17 can be pulled out of the inner side surface 16 or the entire brake body 5 can be pulled away from the storage body 3, i.e., still hung on the positioning end 17 and the drawing end 3a. The release of the brake body 5 can be used to clean the interior of the brake body 5 or the area of the outer ring 15 , to perform maintenance procedures, to pass a new yarn 16- 1354042 thread through the yarn brake B, or to remove the brake body 5 And the other axial distance between the support portion 6 and the storage body 3 can be set such that the brake body 5 does not fall off inadvertently with minimal braking action. Moreover, the axial stroke applied by the quick adjustment assembly Q is greater than the axial overlap between the inner side surface 16 and the positioning end 17, and is also greater than the number of successive thread pitches of the threaded devices 18a, 21 to The brake body 5 can be easily disassembled. The rotation and pull button 19 must be held by hand in the pull-out position (the right side in Fig. 2) until the various processing operations are completed, or the brake body 5 is replaced. When the swivel and pull button 19 is released by the operator's hand, the spring 30 will automatically adjust the position as shown in Figure 2, meaning that the previously adjusted braking action can be re-established (retainer ring) The axial relative position of 20). However, if necessary, the button 19 can also be pushed back to the initial position of Fig. 2. Fig. 3 is an axial section in a substantially vertical cross-sectional plane in Fig. 1, showing a light source 33 on the bottom side of the transparent cover 11 provided on the lower side of the outer casing 28. The outer casing 28 may be integrally joined to the downwardly bent end of the outer casing arm portion 2 or may be attached to the outer casing arm portion 2 through the ear portion 31 having the mounting hole 32. Further, in order to instruct the operator to adjust the degree of rotation of the swivel and pull button 19, the outer casing 28 and the swivel and pull button 19 can be provided with a rotating ratchet mechanism 39. It is even possible to provide markings on the button 19 and the outer casing 28 to facilitate reproducible braking action adjustment operations. Fig. 4 shows a -17-1354042 shell 24 provided with four pins 27 arranged along the circumferential direction. In this case, the outer casing 28 is also provided with four blind holes 29. The tube casing 24 has at least one axial guiding portion 34, such as an axially extending guiding groove 35, which begins at the flange 26 and terminates at a distance from the front end end 25 for axial guidance. A holder ring 20 having at least one guiding projection 38 is formed on the periphery (Fig. 5). The guide projection 38 engages in the guide groove 35 and prevents the retainer ring 20 from rotating relative to the envelope 24. The internal thread 21 is formed on the inner diameter region of the retainer ring 20. To facilitate installation and removal of the permanent magnet assembly P2, a window 37 may be formed at the bottom of one of the grooves 36 of the holder ring 2 for receiving the permanent magnet assembly P2. 1 Description Single figure Fig. 1 is an external view of a yarn feeding device, in particular, a yarn feeding device for a knitting machine. Figure 2 is a longitudinal sectional view of the yarn brake, for example applied to the first! The figure is given to the yarn feeder. Fig. 3 is a cross section of the yarn brake which is located on a plane cross section separated from each other with respect to the plane of the cross section in Fig. 2. Fig. 4 is an external view of a detail of the yarn brake. Fig. 5 is an external view of another detail of the yarn brake. [Description of main components] 1 : Housing 2 : Housing arm 3 : Storage body -18 - 1354042 3a : Pulling end 4 : Winding element 5 : Brake body - 6 : Support 7 : Actuating element 8 : Yarn guiding member 9: gripping member 10: pull-out projection φ 1 1 : transparent cover 12: fixing portion 1 3 : small-diameter end 1 4 : inner ring 15: outer ring ^ 1 6 : inner surface 1 7 : positioning end 18: yarn drawing tube 18a: outer thread 19: swiveling and pulling button 2 0: retainer ring 2 1 : inner thread 2 2 : groove 23: stop element 24: shell 2 5: front side end-19-