200848562 九、發明說明： 【發明所屬之技術領域】 本發明關於一種將至少二個空氣噴嘴固定在牽伸機區 域中的固定構件，該至少二個空氣喷嘴可和相鄰之牽伸機 配合’該牽伸機用於將短纖維束帶牽伸。 【先前技術】 空氣喷嘴用於牵伸機範圍以作各種不同的目的。一般 將-條部分地牽伸的或牽伸完成的短絲纖維(它在一牽伸： 中的產生’該牽伸機由數個先後的滾子對構成）通過一空氣 =嘴過去’並因此’舉例而言將該纖維束帶（Faserverband， 央.fiber assembly 或 fiber strand)加检。 在德專利DE 10 2005 031 079 A1發表了 一種用於製造 編織物的方法’它包含—個具有針織針的針織裝置及至少 一個針織位置。此外，此裝置包含至少一牵伸機，以將一 條短纖維束帶牽伸，該牵伸機後面設一空氣喷嘴。牽伸完 成的纖維束帶導經空氣噴嘴，且經空氣噴嘴作假捻，此假 捻纖維束帶某種強度，使該纖維束帶能送到針織裝置的針 織位置。在該針織裝置中，纖維束帶用針織針直接加工成 針織物。 在DE 10 2006 006 5 05 A1中提到一種用於將一短纖維 束帶緊密化的裝置。在此裝置，一條牽伸過的纖維束帶作 I、达化，使匕利用空氣噴嘴轉變成一臨時紗，其检轉在進 入纺絲裝置前再解捡。 雖然在上述公開案中未提到將空氣噴嘴固定及供應壓 5 200848562 縮空氣的細節，但習知技術係將固定作用及壓縮空氣壓縮 空氣的供應分別設計。一般設有固定構件，它們將空氣噴 嘴與冲頭（羅拉架KStanzen，英屮仙心或r〇Uer stand)或牽伸 機的負荷載體（頂秤臂）連帛’並保持在其位4中。要供應 壓縮空氣-般使用軟管，其中有—條軟管由—中心壓縮空 氣管路開始通到各空氣喷嘴。這些具有分狀固定構件及 多數壓縮空氣軟管的實施例很繁複，且造成高的設備成 j。此外，這些設備很容易受污染，因為纖維飛屑 英.fiber fly)很谷易沈積在這許多構件及軟管上。 【發明内容】 手段及壓 這種 本體具有 利用 種功能在 保持在其 供應到空 軟管。如 在一牵伸 件可有利 的所有相 心型條形 屬構成。 月的目的在將δ又在牽伸機區域的空氣喷嘴的固定 縮空氣供應手段簡化。 目的達成之道係為：該固定構件包含一本體，該 一空腔以將壓縮空氣導引。 財體（它具有一空腔以將壓縮空氣導引），使二 口疋構件中合而為一。空氣噴嘴利用該固定構件 位置同時该所需之壓縮空氣經由本體中的空腔 乱噴驚。如此可省却一條通到空氣喷嘴之分別的 果數個（例如六個或八個）相鄰的牽伸機相鄰地設 義、、、中貝I]本發明就特別有利。如此，該固定構 也拉長及叹计成管形，因此它延伸過此牽伸機组 鄰的牽伸機的範圍。在此該本體宜設計成管形空 式且可由一條拉伸的型條，特別是由一種輕金 6 200848562 如果該本體有單一接頭 如此，壓縮空氣從接頭導引 經本體中的空腔達成。如此 具有一個大致平滑的表面， 在其上。 以供應壓縮空氣，則甚有利。 到該個別空氣噴嘴的作用則係 ’該固定構件就很緊密，且可 灰塵與纖維飛屑幾乎不會固著 /亥工乱贺嘴宜設計成空氣噴嘴嵌入物㈤η她，英州） 白、形式’它們可嵌入該固定構件的本體中。為此，該本體 包含至少二個容納部以各容納一個空氣喷嘴嵌入物。一個 空氣噴嘴嵌入物的容納部宜包含一個開口’呈同心方式設 成在本體中，肖空氣喷嘴嵌入物可大致垂直於空腔(23)的 縱軸放入該開口中。 人們知道，短纖維束帶在牵伸機中往往垂直於運送方 向來回改變。如將空氣喷嘴與短纖維束帶同步改變，則甚 有利。因此有利的做法，係使該固定構件有一可耦合元件， $可與該短纖維束帶的一往復裝置（Changierv〇rrichtung，200848562 IX. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD The present invention relates to a fixing member for fixing at least two air nozzles in a drafting machine region, the at least two air nozzles being engageable with an adjacent drafting machine The drafting machine is used to draw a staple fiber bundle. [Prior Art] Air nozzles are used in the range of drafting machines for a variety of different purposes. Typically, the strip is partially drawn or drawn into a short fiber (which is produced in a draw: the drafter consists of several successive pairs of rollers) through an air = mouth past 'and Therefore, for example, the fiber bundle (Faserverband, central fiber assembly or fiber strand) is checked. A method for producing a woven fabric is disclosed in German Patent No. DE 10 2005 031 079 A1, which comprises a knitting device having a knitting needle and at least one knitting position. Further, the apparatus includes at least one drafting machine for drawing a bundle of short fibers, and an air nozzle is disposed behind the drafting machine. The drawn fiber bundle is guided through the air nozzle and is falsely twisted by the air nozzle. The false twist fiber bundle has a certain strength so that the fiber bundle can be sent to the knitting position of the knitting device. In the knitting device, the fiber bundle is directly processed into a knitted fabric with a knitting needle. A device for compacting a short fiber band is mentioned in DE 10 2006 006 5 05 A1. In this apparatus, a drawn fiber bundle is used for I, and the crucible is converted into a temporary yarn by an air nozzle, and the inspection is performed before being introduced into the spinning device. Although the details of the air nozzle fixing and supply pressure 5 200848562 are not mentioned in the above publication, the prior art designs the fixed action and the supply of compressed air compressed air separately. Generally, there are fixed members which connect the air nozzle with the punch (the KStanzen, the 屮 屮 heart or the r〇Uer stand) or the load carrier (the top arm) of the drafting machine and keep it in its position 4. . To supply compressed air-like hoses, one of the hoses is opened from the central compressed air line to each air nozzle. These embodiments with fractal fixing members and most compressed air hoses are cumbersome and result in high equipment. In addition, these devices are highly susceptible to contamination because the fiber fly is very easy to deposit on many of these components and hoses. SUMMARY OF THE INVENTION Means and pressures The body has a function of maintaining its supply to an empty hose. It is composed of all the center-shaped strips that can be advantageous in a drafting piece. The purpose of the month is to simplify the fixed air supply means of the air nozzles in the region of the drafting machine. The objective is to achieve that the fixing member comprises a body for guiding the compressed air. The financial body (which has a cavity to guide the compressed air) combines the two jaw members into one. The air nozzle utilizes the position of the stationary member while the desired compressed air is spurted through the cavity in the body. This makes it possible to dispense with the fact that a plurality of (for example six or eight) adjacent drafting machines leading to the air nozzle are adjacently designed, and the present invention is particularly advantageous. Thus, the fixed structure is also elongated and squirmed into a tubular shape so that it extends over the range of the drafting machine adjacent to the drafting unit. In this case, the body is preferably designed in the form of a tubular hollow and can be made of a stretched strip, in particular a light gold 6 200848562. If the body has a single joint, compressed air is introduced from the joint through the cavity in the body. This has a substantially smooth surface on it. It is very advantageous to supply compressed air. The effect of the individual air nozzles is that the fixing member is very tight, and the dust and fiber flying debris are hardly fixed. The hoisting mouth should be designed as an air nozzle insert (5) η she, Yingzhou, white, Form 'they can be embedded in the body of the fixed member. To this end, the body comprises at least two receptacles for accommodating one air nozzle insert. The receptacle of an air nozzle insert preferably includes an opening 'concentrically disposed in the body into which the louver air nozzle insert can be placed substantially perpendicular to the longitudinal axis of the cavity (23). It is known that short fiber ribbons tend to change back and forth in the drafting machine perpendicular to the direction of transport. It is advantageous if the air nozzle is changed synchronously with the short fiber band. It is therefore advantageous to have the fixing member have a coupling element, a reciprocating device with the short fiber band (Changierv〇rrichtung,
央.traversing device)耦合。由於一個牵伸機組的相鄰的牵 2機的有有短纖維束帶一般係共同地改變，因此該可與往 復裝置耦合的元件宜設在該本體上。因而該本體作來回運 動，因此位在本體中的空氣噴嘴經常位在對短纖維束帶的 正確位置。该官形本體宜包含軸承面，在該軸承面上它可 被軸承容納部保持住，使它可沿其縱軸移動。 該空氣喷嘴蕨入物也可設計成多部分式。此外，該空 氣噴嘴嵌入物可直接與一紡絲管連接，該短纖維束帶在空 氣噴嘴之後通過該紡絲管。 7 200848562 本發明的其他優點與特點見於以下一實施例的說明。 【實施方式】 在圖1及圖2中所示之一牽伸機（1)由數個前後相隨設 置的羅拉對構成，該羅拉對由受驅動之下羅拉（2)(4)(6)以 及壓迫到下羅拉上的上羅拉構成。一條纖維帶（棉 條）(FaSerband，英：sliver)或一原紗（粗紗）(v〇rgarn， 英：preyarn 或 roving)經一紗節導紗器（8)(Lunten舰rer， , 英：slub guider或roving gUide)供應並沿運送方向a導經牽 伸機（1)且用習知方式牽伸成所要細度的一條短纖維束帶 (10)。 圖2中可看到六個相鄰的牽伸機，它們構成一牽伸機 組（11)。下羅拉（2)(4)(6)設計成下錫林形式，它們延伸過該 牽伸機組（11)的所有牽伸機（1)的範圍。下羅拉（2)(4)(6)用 圖未詳示的滾子軸承支承在所謂的冲頭（羅拉架）（Stanzen， 英：punch或r〇ller stand)(12)中，該冲頭（12)以圖未示的方 式固定在機架上。 "" 二個相鄰的牵伸機（1)的上羅拉（3)(5)(7)(圖2中未示） 宜設計成所謂的「壓迫羅拉雙胞胎」形式，且固定在一個 圖未示之負荷載體上，該載體將上羅拉（3)(5)(7)向下羅拉 (2)(4)(6)預壓。下羅拉（2)(4)(6)的一端與一個或數個驅動器 (圖未示）連接。上羅拉（3)(5)(7)不受驅動，且被下羅接 (2)(4)(6)帶動。該紗節導紗器（8)與一「往復裝置」（丨3)耦 合。往復裴置（13)包含一「往復驅動器」（14)(圖不詳示）及 一紗節導紗器軌（1 5)，該紗節導紗器執被「往復驅動器」 8 200848562 心雙前頭B方向來回移動。經由該固定在紗節導紗器軌上 的紗節導紗器（8)可使原紗（9)在牵伸機（1)中垂直於運送方 向改變，因此該上羅拉（3)(5)(7)的彈性墊材的使用壽命延 長。 …各牽伸機（1)下游設有一空氣喷嘴〇6)，它容納該牵伸 完成的短纖維束帶（10)，且將該短纖維束帶經由一紡絲管 (17)送到一示意圖示的工作位置（18)。舉例而言，此工作位 『置可為一環錠紡紗機的一環錠子（RingsPindel)，它將該短 纖維束帶作紡絲加捻（Spinndrehung)，並將形成之紗捲取起 來。 特別有利的做法係可將本發明用於一紡絲針織裝置 中，其中该工作位置（1 8)由一針織機的針織位置形成。在 此針織機的針織位置以及該短纖維束帶利用針織針直接加 工成一針織物。因此這些傳統中間步驟在製造紗時可省 却。該短纖維束帶（10)可以大致無加捻地在針織位置中加 ，工，如此所製的針織物有很軟的手感。在此，該空氣喷嘴（16) 將该短纖維束帶（1 〇)作假捻，該假捻使該短纖維束帶（i 〇)有 充分的強度以經紡絲管（17)運送一直到針織位置（1 8)為止， 但這種假捻的束帶在針織上作針織時再解检。 空氣喷嘴（16)被一長形延伸的固定構件（19)保持在其位 置，該固定構件延伸過一牽伸機組〇丨）的相鄰的牵伸機範 圍。固定構件（19)包含一管形本體（2〇)，空氣噴嘴（16)[它 呈空氣喷嘴嵌入物（21)的形式]嵌入到該本體（29)中。本體 (20)有一單一接頭（22)以供應壓縮空氣，由該接頭（22)供應 9 200848562 這個牽伸機組（11)的空氣喷嘴（16)。 以下利用圖3詳細說明此固定構件（19)的本體（2〇)和一 空氣噴嘴嵌入物（21)的構造。本體（20)有一空腔（23)，該空 腔沿本體（2〇)縱方向延伸。因此，本體（2〇)設計成管形空心 型條的形式’該空心型條宜由一條拉伸之型條（特別是由一 種輕金屬構成者）構成。空腔（23)用於將壓縮空氣從接頭（22) 达到個別的空氣喷嘴嵌入物（21)中。空腔（23)用於供應壓縮 空氣給空氣喷嘴（16)，因此不需附加之供應軟管。如圖2 所示’本體（20)末端可利用栓塞（24)封閉，使得壓縮空氣不 會在該處跑掉。 對各空氣喷嘴嵌入物（21)，本體（2〇)各包含有一容納部 (25)以谷納它，空氣喷嘴嵌入物（21)垂直於空腔（23)的縱軸 嵌入該容納部中。容納部（25)由二個開口（26)及（27)構成， X開口（26)(27)呈同心方式設在空心型條中，且可為圓筒 形，因此該空氣噴嘴嵌入物（21)可納入（例如可壓入）。但也 可使二開口（26)(27)之-有—螺紋，因此空氣噴錢人物（21) 可旋入本體（20)中。為了將空腔（23)密封，可在空氣喷嘴嵌 入物（2 1)與本體（20)之間設密封件（28)。 空氣喷嘴嵌入物(21)的内部包含—導引通道(29)，以供 短纖維束帶(1〇)通過。有一條或數條嘴入通道⑽開口到該 導引通道（29)中，該喷人通道⑼）與空腔（23)連接。各依喷 入通這⑽之設計*定，該空氣嘴嘴（16)的性質可改變。各 :喷入通道⑽的位置而定，空氣喷嘴（16)可以只收集短纖 、准束帶⑽或將它加检。經嘴人通道⑽進人導引通道（29) 200848562 的壓縮空氣在導引通道（29)中產生一股空氣流，它將短纖 維帶束（10)運送經過空氣喷嘴嵌入物（21)及下流的紡絲管 (17)過去。 各依設計而定，宜將空氣喷嘴嵌入物（2丨）設計成數部 分式’如將空氣噴嘴嵌入物（21)在噴入通道（30)的區域中設 計成分開[例如沿著一個分隔面（3 1}分開]則甚有利，如此而 使得直徑很小的噴入通道（30)的製造簡化。當空氣噴嘴嵌 入物（20)做成二部分式且在分隔面（31)分開時，該噴入通道 (30)可利用第一部分的一錐形面中的槽造成，該槽配合第 二部分的錐形面才能完成變成完整的喷入通道。 為了使空氣噴嘴嵌入物（21)的導引通道（29)即使在短纖 維束帶（1〇)改變時，也始終能定位成使得從牽伸機（1)出來 =短纖維束帶（10)能可靠地進入空氣喷嘴（16)中，因此該固 定構件（19)有_可轉合元件（32)，可和該往復裝置⑴）搞 口接此可和彺復裝置（13)耦合的元件（32)利用本體（2〇)中的 曰（成有一個與該紗節|紗器軌（15)連接的構件（ 嵌，該槽(33)中。因此，具有空氣噴嘴(16)的固定構件(19) 對该具有紗節導外、哭、f 2々丨、A/-、& V、V為（8)的紗郎導紗器執（15)成同步地沿雙 箭頭B方向運動。 ^ ~、也田自又在本體（2〇)上的軸承面（35)支承 在’ _⑽㈣承容㈣⑽中。軸承面（聯軸承容^ 成使該固定構件(19)可在其支承部中沿移 ^轴=納部（36)可直接設在冲頭⑽上， 所不’經由—樞轉軸（37)與冲頭⑽連接。利轉 200848562 的軸承容納部（36)，空氣噴嘴（丨 開，以將出口羅拉對（6)(7)作餘欲）可沿箭頭方向C插轉離 ^道⑽的人π區域清洗的目的，因此該導 【圖式簡單說明】β纯手而及並作清洗。 ^圖1係一牵伸機的部分側剖面圖，具有-接在下游的 Α氧噴嘴； 圖2係沿圖1的箭頭n f a足 甘山 月口貝11方向看相鄰之牽伸機的上視圖， ，、中牽伸機的上羅拉拿掉； 圖3係沿圖2的切面ΠΙ_ΙΠ經一 ^ 1、、、工固疋構件的高倍放大 d現圖，它具有一空氣喷嘴。 【主要元件符號說明】 (1) 牽伸機 (2)(4)(6) 下羅拉 (3)(5)(7) 上羅拉 (8) 紗節（粗紗）導紗器 (9) 原紗（粗紗） (1〇) 短纖維束帶 (11) 牽伸機組 (12) 冲頭（羅拉架） (13) 往復裝置 (15) 紗節導紗器軌 (16) 空氣喷嘴 (17) 紡絲管 (18) 針織位置 12 200848562 (19) 固定構件 (20) 本體 (21) 空氣喷嘴嵌入物 (22) 接頭 (23) 空腔 (24) 栓塞 (25) 容納部 (26)(27)開口 (28) 密封件 (29) 導引通道 (30) 喷入通道 (31) 分隔面 (32) 可耦合元件 (33) 槽 (34) 構件 (35) 軸承面 (36) 軸承容納部 13Central.traversing device) coupling. Since the staple fiber bundles of adjacent ones of a drafting unit are generally changed in common, the elements that can be coupled to the reciprocating means are preferably provided on the body. The body thus moves back and forth so that the air nozzles located in the body are often in the correct position for the bundle of staple fibers. The official body preferably includes a bearing surface on which it can be held by the bearing receptacle so that it can move along its longitudinal axis. The air nozzle fern can also be designed in multiple parts. Furthermore, the air nozzle insert can be directly connected to a spinning tube which passes through the spinning tube after the air nozzle. 7 200848562 Other advantages and features of the invention are found in the following description of an embodiment. [Embodiment] One of the drafting machines (1) shown in Figs. 1 and 2 is composed of a plurality of roller pairs arranged one behind the other, the roller pair being driven by the roller (2) (4) (6) ) and the top roller that is pressed onto the bottom roller. A fiber band (fabric) (FaSerband, English: sliver) or a raw yarn (roving) (v〇rgarn, English: preyarn or roving) through a gauze yarn guide (8) (Lunten ship rer, , English: The slub guider or roving gUide) supplies and guides the drafting machine (1) in the direction of transport a and draws a short fiber band (10) of the desired fineness in a conventional manner. Six adjacent drafters can be seen in Figure 2 which form a drafting unit (11). The bottom rollers (2)(4)(6) are designed in the form of lower cylinders which extend over the range of all drafters (1) of the drafting unit (11). The bottom roller (2) (4) (6) is supported by a roller bearing (not shown in detail) in a so-called punch (Stanzen, English: punch or r〇ller stand) (12), the punch ( 12) Fixed to the frame in a manner not shown. "" The top rollers (3)(5)(7) of two adjacent drafting machines (1) (not shown in Figure 2) should be designed in the form of so-called "pressing roller twins" and fixed in one On a load carrier not shown, the carrier preloads the top rollers (3) (5) (7) down rollers (2) (4) (6). One end of the bottom roller (2), (4), and (6) is connected to one or several drives (not shown). The top rollers (3)(5)(7) are not driven and are driven by the bottom (2)(4)(6). The yarn guide (8) is coupled to a "reciprocating device" (丨3). The reciprocating device (13) comprises a "reciprocating drive" (14) (not shown in detail) and a yarn guide rail (15), and the yarn guide is held by the "reciprocating drive" 8 200848562 Move in the B direction. The original yarn (9) can be changed in the drafting machine (1) perpendicular to the conveying direction via the yarn guide (8) fixed on the yarn guide rail, so the top roller (3) (5) (7) The elastic mat has an extended service life. An air nozzle 〇6) is disposed downstream of each drafting machine (1), which accommodates the drawn short fiber bundle (10), and the short fiber bundle is sent to a spinning tube (17). Schematic diagram of the working position (18). For example, the working position is set to a ring spindle (RingsPindel) of a ring spinning machine which spins the staple fiber bundle and spins the formed yarn. It is particularly advantageous to use the invention in a spinning knit apparatus wherein the working position (18) is formed by the knitting position of a knitting machine. The knitting position of the knitting machine and the staple fiber band are directly processed into a knitted fabric using a knitting needle. Therefore these traditional intermediate steps can be dispensed with when manufacturing yarn. The staple fiber band (10) can be added to the knitting position substantially without twisting, and the knitted fabric thus produced has a soft hand. Here, the air nozzle (16) acts as a false twist on the short fiber band (1 〇), which gives the short fiber band (i 〇) sufficient strength to be transported through the spinning tube (17) until The knitting position is (18), but the false band is unchecked when knitting on the knitting. The air nozzle (16) is held in its position by an elongately extending securing member (19) which extends past the adjacent drafter range of a drafting unit. The fixing member (19) comprises a tubular body (2) into which an air nozzle (16) [in the form of an air nozzle insert (21)] is embedded. The body (20) has a single joint (22) for supplying compressed air, and the joint (22) supplies the air nozzle (16) of the drafting unit (11). The configuration of the body (2) of the fixing member (19) and an air nozzle insert (21) will be described in detail below using Fig. 3. The body (20) has a cavity (23) extending in the longitudinal direction of the body (2〇). Therefore, the body (2〇) is designed in the form of a tubular hollow strip. The hollow strip is preferably composed of a stretched strip (especially composed of a light metal). The cavity (23) is used to bring compressed air from the joint (22) into the individual air nozzle insert (21). The cavity (23) is used to supply compressed air to the air nozzle (16) so that no additional supply hose is required. As shown in Figure 2, the end of the body (20) can be closed with a plug (24) so that compressed air does not run there. For each air nozzle insert (21), the body (2) each includes a receiving portion (25) for guillotine, and the air nozzle insert (21) is embedded in the receiving portion perpendicular to the longitudinal axis of the cavity (23). . The receiving portion (25) is composed of two openings (26) and (27), and the X opening (26) (27) is concentrically arranged in the hollow strip, and may be cylindrical, thus the air nozzle insert ( 21) can be included (for example, can be pressed in). However, the two openings (26) (27) can also be threaded so that the air-spraying person (21) can be screwed into the body (20). In order to seal the cavity (23), a seal (28) may be provided between the air nozzle insert (21) and the body (20). The interior of the air nozzle insert (21) contains a guide channel (29) for the passage of the staple fiber band (1〇). One or more nozzle inlet passages (10) open into the guide passage (29), and the spray passage (9) is connected to the cavity (23). The nature of the air nozzle (16) can vary depending on the design of the spray (10). Each: depending on the position of the injection channel (10), the air nozzle (16) can collect only the staple fiber, the quasi-bundle (10) or check it. Compressed air through the mouth passage (10) into the guide channel (29) 200848562 produces an air flow in the guide channel (29) which transports the staple fiber bundle (10) through the air nozzle insert (21) and The downstream spinning tube (17) passed. Depending on the design, the air nozzle insert (2丨) should be designed in several parts as designed to separate the air nozzle insert (21) in the area of the injection channel (30) [eg along a dividing surface (3 1}separately] is advantageous, so that the manufacture of the injection passage (30) having a small diameter is simplified. When the air nozzle insert (20) is made in two parts and separated on the partition surface (31), The injection channel (30) can be formed by a groove in a tapered surface of the first portion that fits the tapered surface of the second portion to complete the complete injection channel. For the air nozzle insert (21) The guide channel (29) can always be positioned so that the short fiber bundle (10) can reliably enter the air nozzle (16) even when the short fiber band (1〇) is changed. Therefore, the fixing member (19) has a _ turnable member (32) which can be engaged with the reciprocating device (1). The component (32) which can be coupled with the tamper device (13) utilizes the body (2 〇). The 曰 in the 曰 (there is a member connected to the yam | yarn rail (15) (embedded, the groove (33). Thus, the fixing member (19) having the air nozzle (16) holds the yarn guide with the yarn guide, crying, f 2々丨, A/-, & V, V (8) ( 15) Synchronously move in the direction of the double arrow B. ^ ~, also the bearing surface (35) on the body (2〇) is supported in the ' _ (10) (four) bearing capacity (4) (10). The bearing surface (the joint bearing capacity) The fixing member (19) can be directly disposed on the punch (10) along the shifting shaft/nano portion (36) in its support portion, and is not connected to the punch (10) via the pivot shaft (37). The bearing receiving portion (36), the air nozzle (opening to make the outlet roller pair (6) (7) make a residual desire) can be inserted in the direction of the arrow C for the purpose of cleaning the person π region of the channel (10), so [Simplified description of the figure] β is purely hand-washed and cleaned. ^ Figure 1 is a partial side cross-sectional view of a drafting machine with a helium oxygen nozzle connected downstream; Figure 2 is an arrow nfa along the Figure 1 The top view of the adjacent drafting machine is seen in the direction of the Yanshan Yuekou Bay, and the top roller of the middle drafting machine is removed; Figure 3 is a section along the plane of Figure 2, ΙΠ ΙΠ, ^, 1, High magnification Large d picture, it has an air nozzle. [Main component symbol description] (1) Drafting machine (2) (4) (6) Bottom roller (3) (5) (7) Top roller (8) Yarn section (roving) yarn guide (9) raw yarn (roving) (1〇) short fiber band (11) drafting unit (12) punch (roller frame) (13) reciprocating device (15) yarn section yarn guide Rail (16) Air nozzle (17) Spinning tube (18) Knitting position 12 200848562 (19) Fixing member (20) Body (21) Air nozzle insert (22) Connector (23) Cavity (24) Plug (25 ) Housing (26) (27) Opening (28) Seal (29) Guide channel (30) Injection channel (31) Partition surface (32) Coupling element (33) Slot (34) Member (35) Bearing Face (36) bearing housing 13