JPS5855247B2 - Covering device - Google Patents

Description

【発明の詳細な説明】 この発明は芯糸のまわりにカバー糸を巻いてカバーリン
グ糸を形成させるカバーリング装置である。DETAILED DESCRIPTION OF THE INVENTION The present invention is a covering device that winds a cover yarn around a core yarn to form a covering yarn.

本発明者は、先にカバー糸を特定のボビンに巻替えずに
自由な大きさの巻玉のまま使用できるようにしたいわゆ
るボビンレスのカバーリング装置を開発した（特開昭５
６−７９７２０号公報参照）。The present inventor has developed a so-called bobbin-less covering device that allows the cover thread to be used as a bobbin of any size without having to rewind it onto a specific bobbin (Japanese Patent Application Laid-Open No.
6-79720).

すなわち、垂直に軸受されかつ適宜の駆動源により回転
する主軸と、該主軸と一体に設けられた回転盤と、該回
転盤のすぐ下に前記主軸の軸受・・ウジングと一体に設
けられた不動盤と、前記回転盤のすぐ上に前記主軸とと
もに回転しないように主軸に取付けた静止盤とを設け、
前記回転盤の外周部には前記主軸の下端面に連通ずるカ
バー糸の導出口を設け、前記静止盤の上面には芯糸の巻
管を保持するホルダーと該ホルダーに保持された巻管よ
り芯糸を巻戻す巻戻しローラとを設けてなるカバーリン
グ装置である。In other words, there is a main shaft that is vertically supported and rotated by an appropriate drive source, a rotating disk that is provided integrally with the main shaft, and an immovable disk that is installed directly below the rotating disk and is integrated with the bearing of the main shaft. a plate, and a stationary plate attached to the main shaft so as not to rotate together with the main shaft immediately above the rotary disk,
An outlet for the cover yarn that communicates with the lower end surface of the main shaft is provided on the outer periphery of the rotary disk, and a holder for holding a core yarn winding tube and a winding tube held in the holder are provided on the upper surface of the stationary disk. This is a covering device equipped with a rewind roller that rewinds the core yarn.

そしてこのカバーリング装置における静止盤は、その下
面に設けた永久磁石と不動盤の上面に設けた永久磁石と
の磁気力により主軸とともに回転しないような構造とな
っている。The stationary plate in this covering device has a structure such that it does not rotate together with the main shaft due to the magnetic force between a permanent magnet provided on the lower surface of the stationary plate and a permanent magnet provided on the upper surface of the stationary plate.

また、芯糸を巻管より巻戻すための巻戻しローラが静止
盤の下面に回転自在に軸受された永久磁石よりなる回転
体と同軸に設けられ、しかも該回転体が不動盤の上面に
設けられ、かつ一定の駆動源により回転する永久磁石よ
りなる回転体の回転に磁気力により連動できる機構とな
っている。Further, an unwinding roller for unwinding the core yarn from the winding tube is provided coaxially with a rotating body made of a permanent magnet rotatably supported on the lower surface of the stationary plate, and the rotating body is provided on the upper surface of the stationary plate. It is a mechanism that can be linked by magnetic force to the rotation of a rotating body made of a permanent magnet that is rotated by a constant driving source.

しかしながら、このものは主軸の軸方向と平行に磁力線
が働らくように回転磁石と非回転磁石とを回転盤を挾ん
でその上下の静止盤および不動盤にそれぞれ取付ける構
造となっているために、次のような点で未だ十分満足す
べきものとはいえなかった。However, this device has a structure in which rotating magnets and non-rotating magnets are attached to the stationary and stationary plates above and below the rotating disk, respectively, with the rotating magnet sandwiching the rotating magnet so that the lines of magnetic force operate parallel to the axial direction of the main shaft. The results were not yet fully satisfactory in the following respects.

すなわち（１）主軸の軸方向と平行に作用する磁気力と
、静止盤、不動盤および磁石の各自重との相乗作用によ
って静止盤、不動盤と主軸との間に介在するベアリング
に、スラスト荷重が加わり該ベアリングの摩耗が激しい
こと。In other words, (1) A thrust load is applied to the bearings interposed between the stationary plate, stationary plate, and the main shaft due to the synergistic effect of the magnetic force acting parallel to the axial direction of the main shaft and the weight of each of the stationary plate, stationary plate, and magnet. This causes severe wear on the bearing.

（２）静止盤と不動盤との間に磁力線が作用するために
、この間に介在する回転盤は渦電流を生じないような非
導電材を使用しなげればならず、かつ磁化しない非磁性
体のものを使用しなげればならないこと。(2) Because lines of magnetic force act between the stationary plate and the stationary plate, the rotating plate interposed between them must be made of a non-conductive material that does not generate eddy currents, and must be made of non-magnetic material that does not become magnetized. Having to use things in your body.

（３）回転盤を回転させるために要する消費電力は該回
転盤の厚みに比例し、その径の２乗に比例して増大する
という難点があること。(3) The power consumption required to rotate the rotary disk is proportional to the thickness of the rotary disk, and increases in proportion to the square of its diameter.

本発明者は上記（１）〜（３）の点について改良すべく
日夜研究を積み重ねた結果、ベアリングはスラスト荷重
に対して摩耗が大きいが、ラジアル方向の荷重に対して
は強いことが経険上判明したことから、回転盤に渦電流
が生じないように磁石の取付位置を考慮すること、およ
び消費電力が少ない構造の回転盤とすることにより従来
よりも一層経済的でかつ効率的なカバーリング装置を完
成したものである。As a result of repeated research day and night to improve the points (1) to (3) above, the inventors of the present invention found that although bearings suffer from large wear under thrust loads, it is economically advantageous to be strong against loads in the radial direction. Based on the above findings, by considering the mounting position of the magnets so that eddy currents do not occur on the rotary disk, and by creating a rotary disk with a structure that consumes less power, it is possible to create a cover that is more economical and efficient than conventional ones. This is a completed ring device.

すなわちこの発明の目的は、消費電力の大幅な削減が期
待でき、かつ回転盤の材質に制約されることなく安価に
作成できるとともにベアリングの摩耗度が少なく長期使
用に耐えるカバーリング装置を一般に提供することにあ
る。That is, an object of the present invention is to provide the general public with a covering device that can be expected to significantly reduce power consumption, can be manufactured at low cost without being restricted by the material of the rotary disk, and has low bearing wear and can withstand long-term use. There is a particular thing.

以下、この発明の一実施例を図面により説明する。An embodiment of the present invention will be described below with reference to the drawings.

図において、１は垂直に位置させた主軸で、該主軸１の
下端面１′から軸心に沿って穿孔し、かつ該主軸１の上
部半径方向に連通させた導糸孔１“を備えている。In the figure, reference numeral 1 denotes a vertically positioned main shaft, which is provided with a thread guide hole 1'' that is bored along the axis from the lower end surface 1' of the main shaft 1 and communicated with the upper part of the main shaft 1 in the radial direction. There is.

２，２′はボールベアリングからなる主軸１の軸受で、
軸受・・ウジフグ３，３′内に保持されている。2 and 2' are bearings for the main shaft 1 consisting of ball bearings,
Bearing: Held within the Ujifugu 3, 3'.

４は軸受２，２′間の主軸１部分に嵌着したロールで、
該ロール４が駆動ベルト５に圧接して主軸１を安定した
状態で高速回転させる。4 is a roll fitted on the main shaft 1 between bearings 2 and 2';
The roll 4 presses against the drive belt 5 to rotate the main shaft 1 at high speed in a stable state.

６は機枠７に取付けたブラケット８にピン９を介して左
右に回動する・・ンドルで、該・・ンドル６を右方向に
回動させたときに、主軸１がシフトして駆動ベルト５に
圧接して主軸１を高速回転させる。Reference numeral 6 is a handle that rotates left and right through a pin 9 on a bracket 8 attached to the machine frame 7. When the handle 6 is rotated to the right, the main shaft 1 shifts and the drive belt 5 to rotate the main shaft 1 at high speed.

またバンドル６を左方向に回動させたときには、主軸１
が駆動ベルト５から離反し、主軸１０回転が停止するこ
ととなる。Also, when the bundle 6 is rotated to the left, the main shaft 1
is separated from the drive belt 5, and the main shaft 10 stops rotating.

１０は軸受・・ウジング３の上方に位置する主軸１部分
に、ポス１１を介して嵌着固定した薄型回転盤で、該主
軸と一体に回転する。Bearing 10 is a thin rotary disk that is fitted and fixed to a portion of the main shaft 1 located above the housing 3 via a post 11, and rotates together with the main shaft.

薄型回転盤１０の大きさは後記する静止盤１２の直径よ
りも若干大きめとし、その材質は導電材または非導電材
のいずれであってもよいが軽量化および機械的強度を考
慮した場合、ＡＩ材、合成樹脂材が好適である。The size of the thin rotary plate 10 is slightly larger than the diameter of the stationary plate 12, which will be described later, and its material may be either a conductive material or a non-conductive material, but in consideration of weight reduction and mechanical strength, AI Materials and synthetic resin materials are suitable.

１３は薄型回転盤１０の裏側の基部に密着させて主軸１
に嵌着固定した小径の回転基盤で、この回転基盤１３の
肉厚内を通ってラジアル方向にカバー糸Ｂを通す導出孔
１４を穿設し、該導出孔が前記主軸１のラジアル方向に
穿設した導糸孔１“に合致している。13 is the main shaft 1 which is brought into close contact with the base on the back side of the thin rotary disk 10.
A small-diameter rotating base that is fitted and fixed to the rotary base 13 is provided with a lead-out hole 14 through which the cover thread B is passed in the radial direction through the wall thickness of the rotary base 13. It matches the thread guide hole 1'' that was set.

１２は前記薄型回転盤１０のすぐ上に設けた静止盤で、
該静止盤１２は前記主軸１の最上部に位置するベアリン
グ等からなる軸受１５を介して回転しないように取付け
られている。12 is a stationary plate provided immediately above the thin rotary plate 10,
The stationary plate 12 is mounted so as not to rotate via a bearing 15, which is a bearing or the like, located at the top of the main shaft 1.

静止盤１２の上面の外周縁部には、１個所または数個所
に前記外周縁部に沿って平面円弧状の棒磁石１６を取付
ける。A planar arc-shaped bar magnet 16 is attached to the outer peripheral edge of the upper surface of the stationary plate 12 at one or several locations along the outer peripheral edge.

この棒磁石１６と同形状の別の棒磁石１７を静止盤１２
の外側で、カバー糸の通路を挾んで磁石１６と互いに吸
引勝手となるように対向させて取付ける（第３図参照）
。Another bar magnet 17 having the same shape as this bar magnet 16 is placed on the stationary plate 12.
Attach the magnet 16 on the outside of the cover, sandwiching the cover thread passage so that they face each other so that they can attract each other (see Figure 3).
.

しかして両枠磁石１６，１７は静止盤１２に対してその
ラジアル方向に互いに吸引状態となる如く磁力線が作用
するから、該静止盤は通常、主軸１に対して軸受１５を
介して回転しないようになっている。Since both frame magnets 16 and 17 act on the stationary plate 12 in the radial direction so that the lines of magnetic force are mutually attracted to each other, the stationary plate is normally prevented from rotating with respect to the main shaft 1 via the bearing 15. It has become.

１８は前記静止盤１２の上面に設けた芯糸Ａの巻管１９
を垂直方向に保持するホルダーで、該ホルダー１８は第
４図示の如く静止盤１２に垂直に植設したピン２０に遊
嵌した回動体２０′の上端より一体に延出した腕片２１
の自由端側に回転自在の軸受２２にて支持され、トーシ
ョンスプリング２３により、静止盤１２０周縁部に立設
した巻戻しローラ２４に芯糸Ｂの巻管１９を圧接してい
る。Reference numeral 18 denotes a winding tube 19 for the core yarn A provided on the upper surface of the stationary plate 12.
The holder 18 has an arm piece 21 integrally extending from the upper end of a rotating body 20' that is loosely fitted to a pin 20 vertically installed on the stationary plate 12 as shown in the fourth figure.
is supported by a rotatable bearing 22 on the free end side thereof, and a winding tube 19 of the core yarn B is pressed into contact with an unwinding roller 24 erected at the peripheral edge of the stationary plate 120 by a torsion spring 23.

鉄拳戻しローラ２４は静止盤１２の外周縁部にベアリン
グ等からなる回転自在の軸受２５を介して軸支されてい
る。The iron fist return roller 24 is pivotally supported on the outer peripheral edge of the stationary plate 12 via a rotatable bearing 25 made of a bearing or the like.

そして巻戻しローラ２４の基部（軸受２５の直上に位置
する部分）に、鉄拳戻しローラ２４と一体に回転する環
状コア型磁石２６を嵌着する。Then, an annular core magnet 26 that rotates together with the rewinding roller 24 is fitted to the base of the rewinding roller 24 (a portion located directly above the bearing 25).

２７は静止盤１２の外周縁部から近接し、かつカバー糸
の通路を挾んだ位置の外測に立設した回転軸で、その上
下に回転自在なベアリングからなる軸受２Ｂ、２Ｂ’に
て支承されている。Reference numeral 27 denotes a rotary shaft which is proximate to the outer periphery of the stationary plate 12 and is installed vertically at a position sandwiching the passage of the cover thread, and is connected by bearings 2B and 2B' which are rotatable up and down. Supported.

この回転軸２７の下部に回転ロール２９を嵌着し、該回
転ロール２９が第２駆動ベルト３０に圧接して回転軸２
７を回転させる。A rotating roll 29 is fitted to the lower part of the rotating shaft 27, and the rotating roll 29 comes into pressure contact with the second drive belt 30, so that the rotating shaft 27
Rotate 7.

そして回転軸２７の上部には前記環状コア型磁石２６と
同じ形状で、これと同じ高さに位置する如く別の環状コ
ア型磁石３１を嵌着し、両磁石２６，３１がその対向す
る外周面で互いに吸引勝手の磁力線が作用するようにな
る。Then, another annular core magnet 31 is fitted onto the upper part of the rotating shaft 27 so that it has the same shape as the annular core magnet 26 and is located at the same height. Attractive magnetic lines of force act on each other on the surface.

しかして回転軸２７０回転ロール２９が第２駆動ベルト
３０に圧接すると、該回転軸２７と一体になって環状コ
ア型磁石３１が回転し、該磁石３１の磁気力によって相
手方の磁石２６もこれに従動して回転することとなり、
巻戻しローラ２４を回し、鉄拳戻しローラ２４に圧接し
ている芯糸Ａの巻管１９をその巻戻し方向に回転させる
。When the rotating shaft 270 and rotating roll 29 come into pressure contact with the second drive belt 30, the annular core magnet 31 rotates integrally with the rotating shaft 27, and the magnetic force of the magnet 31 also causes the other magnet 26 to rotate. It will be driven and rotate,
The unwinding roller 24 is rotated to rotate the winding tube 19 of the core yarn A, which is in pressure contact with the iron fist unwinding roller 24, in the unwinding direction.

なお本例では図示していないが、環状コア型磁石２６．
３１は必ずしも水平方向の同高位置に設置する場合にの
みに限定されるものではなく、例えば円形磁石の円形面
同士を互いに対向させ、該円形磁石に接続する歯車（図
示せず）を介して巻戻しローラ２４を回転させるように
してもよい。Although not shown in this example, an annular core magnet 26.
31 is not necessarily limited to the case where the circular magnets are installed at the same height in the horizontal direction, for example, the circular surfaces of the circular magnets are made to face each other, and the circular magnets are connected to each other via a gear (not shown). The rewinding roller 24 may also be rotated.

３９は前記巻戻しローラ２４に圧接している芯糸Ａの巻
管１９をそのホルダー１８とともに巻戻しローラ２４よ
り離反させるためのレバーで、ホルダー１８を支持する
腕片２１の基部を固着した回動体２０′の下端より一体
に延出されている。Reference numeral 39 denotes a lever for separating the winding tube 19 of the core thread A which is in pressure contact with the rewinding roller 24 together with its holder 18 from the rewinding roller 24. It extends integrally from the lower end of the moving body 20'.

このレバー３９の自由端より立上り板４０が設けられ該
立上り板４０を第４図矢印の方向に押圧するとレバー３
９と回動体２０′を介して一体の腕片２１がその自由端
側に支持するホルダー１８に嵌着の巻管１９を巻戻しロ
ーラ２４より離反させる。A rising plate 40 is provided from the free end of this lever 39, and when the rising plate 40 is pressed in the direction of the arrow in FIG.
The winding tube 19 fitted in the holder 18 supported on the free end side by the integrated arm piece 21 through the rotating body 20' is separated from the unwinding roller 24.

３２は静止盤１２上の周縁に垂設した断面円弧状の２枚
の支持板で、その高さはホルダー１８とほぼ同じ程度と
し、それら支持板３２の上端に円形リング３３を水平に
位置させて支承し、カバー糸゛Ｂが芯糸Ａの巻管１９餌
に侵入して混線しないようにするためのものである。Reference numeral 32 denotes two support plates having an arcuate cross section that are vertically disposed on the periphery of the stationary plate 12, and the height thereof is approximately the same as that of the holder 18. A circular ring 33 is horizontally positioned at the upper end of these support plates 32. This is to prevent the cover yarn B from entering the winding tube 19 of the core yarn A and causing wire confusion.

円形リング３３０表面には、ナシジのメッキを施し、カ
バー糸Ｂに対する摩擦抵抗を少なくする。The surface of the circular ring 330 is plated to reduce frictional resistance against the cover yarn B.

図中３４はカバー糸Ｂの巻玉、３５はカバー糸Ｂの送り
ローラ、３６，３６’、３６“は芯糸Ａのガイド、３７
は混合糸ガイド、３８はフィードローラ、４１は巻取り
ローラをそれぞれ示す。In the figure, 34 is a winding ball of cover yarn B, 35 is a feed roller for cover yarn B, 36, 36', 36'' is a guide for core yarn A, 37
38 represents a mixed yarn guide, 38 represents a feed roller, and 41 represents a winding roller.

この発明は、上記構成としたからまず芯糸Ａの巻管１９
を静止盤１２の上面に設けたホルダー１８に嵌着し、該
巻管１９より芯糸Ａを巻戻しローラ２４の外測に回して
ガイド３６，３６’、３６“を経て上方に引出し、混合
糸ガイド３７およびフィードローラ３８を通って巻取り
ローラ４１に巻取られるようにする。Since this invention has the above structure, firstly, the winding tube 19 of the core thread A is
is fitted into the holder 18 provided on the upper surface of the stationary plate 12, and the core yarn A is passed from the winding tube 19 to the outside of the unwinding roller 24 and drawn upward through the guides 36, 36', 36'', and mixed. The yarn passes through a yarn guide 37 and a feed roller 38 and is wound onto a winding roller 41.

一方、カバー糸Ｂは機枠７の下方に設けた巻玉３４より
引出し、送りローラ３５を通して主軸１の下端面１′か
らその主軸１内の導糸孔１“内に導き、さらに小径の回
転基盤１３の肉厚内の導出孔１４を通って薄型回転盤１
０の裏側を通過し、該回転盤１００周縁に到り該周縁か
ら上方に向って円形リング３３の周面に当接状態となっ
て、これより上方に設けた混合糸ガイド３７で芯糸Ａに
カバー糸Ｂを絡み付かせ、フィードローラ３８を通って
これを巻取りローラ４１で巻取らせる。On the other hand, the cover yarn B is pulled out from the winding bobbin 34 provided below the machine frame 7, guided through the feed roller 35 from the lower end surface 1' of the main shaft 1 into the yarn guide hole 1'' in the main shaft 1, and further rotated with a small diameter. The thin rotary plate 1 is inserted through the lead-out hole 14 in the thickness of the base 13.
0, reaches the periphery of the rotary disk 100, moves upward from the periphery, comes into contact with the circumferential surface of the circular ring 33, and the mixed yarn guide 37 provided above the core yarn A. The cover thread B is entangled with the thread B, passes through a feed roller 38, and is wound up by a winding roller 41.

しかる後、芯糸Ａの巻管１９を嵌着したホルダー１８を
レバー３９の自由端側に立上り板４０の操作により回動
し、芯糸Ａの巻管１９を巻戻しローラ２４に圧接させる
。Thereafter, the holder 18 fitted with the winding tube 19 of the core yarn A is rotated to the free end side of the lever 39 by operating the rising plate 40, and the winding tube 19 of the core yarn A is pressed against the rewinding roller 24.

次いでバンドル６を右方向に回動させると、主軸１がシ
フトし、該主軸１０ロール４が駆動ベルト５に圧接して
主軸１を高速回転させる。Next, when the bundle 6 is rotated to the right, the main shaft 1 is shifted, and the roll 4 of the main shaft 10 is pressed against the drive belt 5, causing the main shaft 1 to rotate at high speed.

主軸１の回転により薄型回転盤１０および小径の回転基
盤１３も該主軸１と一緒に高速回転するために、カバー
糸Ｂは小径の回転基盤１３の導出孔１４から繰り出され
て回転盤１０と一緒に回転する円形リング３３０周縁に
こすられながら芯糸Ａに絡み付けられることとなる。As the main shaft 1 rotates, the thin rotary disk 10 and the small-diameter rotating base 13 also rotate at high speed together with the main shaft 1, so the cover yarn B is let out from the outlet hole 14 of the small-diameter rotating base 13 and together with the rotating disk 10. The core yarn A is entangled with the core yarn A while being rubbed by the periphery of the rotating circular ring 330.

一方、回転軸２７０回転ロール２９を第２駆動ベルト３
０に圧接すると、回転軸２７の上端部に取付けた環状コ
ア型磁石３１が回転軸２７と一緒に回転し、それと対応
する静止盤１２上に回転自在に設けた環状コア型磁石２
６が協動して回転し、巻戻しローラ２４を回転させるこ
ととなる。On the other hand, the rotation shaft 270 and the rotation roll 29 are connected to the second drive belt 3
0, the annular core magnet 31 attached to the upper end of the rotating shaft 27 rotates together with the rotating shaft 27, and the annular core magnet 2 rotatably provided on the corresponding stationary plate 12 rotates together with the rotating shaft 27.
6 rotate together to rotate the rewinding roller 24.

巻戻しローラ２４の回転に伴ないこれに圧接する芯糸Ａ
の巻管１９が巻戻されて、芯糸Ａを次々に巻取りローラ
４１へ送られる。The core yarn A comes into pressure contact with the rewinding roller 24 as it rotates.
The winding tube 19 is unwound, and the core threads A are sent one after another to the winding roller 41.

静止盤１２は主軸１が回転しているときにも軸受１５を
介して支承され、かつ静止盤１２の周縁に設けた円弧状
の棒磁石１６と該静止盤１２の近傍に設けた円弧状の棒
磁石１７とによって静止盤１２のラジアル方向に磁力が
働らき、静止盤１２が回転しないようになっている。The stationary plate 12 is supported via a bearing 15 even when the main shaft 1 is rotating, and includes an arc-shaped bar magnet 16 provided around the periphery of the stationary plate 12 and an arc-shaped bar magnet 16 provided near the stationary plate 12. A magnetic force is applied to the stationary plate 12 in the radial direction by the bar magnet 17, and the stationary plate 12 is prevented from rotating.

この発明は上記の説明から判るように、垂直に植設した
巻戻しローラおよび鉄拳戻しローラに圧接する巻管を保
持するホルダーを垂直に塔載した静止盤を、垂直に軸受
されかつ高速回転する主軸に、ベアリングの軸受を介し
て取付け、該静止盤のラジアル方向に働らく磁力線を介
して回動規制を行なう磁石のうち、一方の磁石は静止盤
の周縁に、他方の磁石は静止盤の外測で、カバー糸の通
路を挾んで一方の磁石と対向する位置に設けるようにし
たので、静止盤には最小限必要なもののみしか塔載され
ず、重量的に大幅な軽減化が図れ、ベアリングの摩耗が
それだけ減少する。As can be seen from the above description, the present invention comprises a stationary plate vertically mounted with a holder for holding a winding tube that is in pressure contact with a vertically installed unwinding roller and a tekken unwinding roller, which is vertically bearing and rotates at high speed. Of the magnets that are attached to the main shaft through a bearing and regulate rotation through lines of magnetic force acting in the radial direction of the stationary plate, one magnet is attached to the periphery of the stationary plate, and the other magnet is attached to the stationary plate. In the external measurement, we installed the cover in a position facing one of the magnets, sandwiching the passage of the cover thread, so that only the minimum necessary items are mounted on the stationary plate, resulting in a significant weight reduction. , bearing wear is reduced accordingly.

しかも軸受となるベアリングにかかる磁気力の荷重は、
従来のようにスラスト方向の荷重が加わることなくラジ
アル方向の荷重が加わることとなる結果、この面からも
ベアリングの摩耗が著しく減少され、長期使用に耐える
という優れた効果を奏する。Moreover, the magnetic force load applied to the bearing is
As a result of applying a load in the radial direction instead of applying a load in the thrust direction as in the conventional case, the wear of the bearing is significantly reduced from this aspect as well, resulting in an excellent effect of being able to withstand long-term use.

また、静止盤上に回動自在に垂設した巻戻しローラの駆
動は、鉄拳戻しローラに嵌着した回転磁石と該静止盤の
外測で、かつ上記巻戻しローラ上の磁石に対し、カバー
糸の通路を挾んでラジアル方向で対向するように取付け
た回転磁石の回転により行なうこととしたので、従来の
ように回転磁石間に回転盤を介在させる方式のものに比
べ、渦電流損が生ずることなくかつ回転盤自体が非導電
材でなげればならないといった制約からも解放されるこ
ととなる。In addition, the rewinding roller, which is vertically rotatably installed on the stationary plate, is driven by a rotating magnet fitted on the Tekken rewinding roller and an external measurement of the stationary plate, and a cover is connected to the magnet on the rewinding roller. Because this is done by rotating rotating magnets that are mounted radially opposite each other across the thread path, eddy current loss occurs compared to the conventional method in which a rotating disk is interposed between the rotating magnets. This eliminates the restriction that the rotary disk itself must be made of non-conductive material.

従って回転盤はどんな材質でもよく、コストの低減化が
図れる上に、それだけ磁気的、電気的ロスがなくなると
いう利点がある。Therefore, the rotary disk may be made of any material, which has the advantage of reducing costs and eliminating magnetic and electrical losses.

さらに、この発明の有効なことは、カバー糸を回転盤の
肉厚内に通す必要がないから、その分だけ回転盤を薄型
構造とすることができ、しかも従来のように回転盤の周
縁に嵩高な重量のある筒状体を設ける必要がないので、
回転盤の重量は大幅な軽減化が図られ、従来よりもはる
かに少ない消費電力により回転盤を高速回転でき、かつ
回転盤に対する空気抵抗が大幅に減少するために騒音が
少なくなり騒音対策上からも優れた効果を奏することで
ある。Furthermore, an advantage of this invention is that since it is not necessary to pass the cover thread through the thickness of the rotary disk, the rotary disk can be made thinner to that extent. Since there is no need to provide a bulky and heavy cylindrical body,
The weight of the rotary disk has been significantly reduced, allowing the rotary disk to rotate at high speed with far less power consumption than before, and air resistance against the rotary disk has been significantly reduced, resulting in less noise and improved noise control. It also has excellent effects.

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

第１図はこの発明の一実施例を示す概略斜視図、第２図
はその断面図、第３図は磁石の取付状態を示す平面図、
第４図は巻管ホルダーの一部切欠斜視図である。 １・・・・・・主軸、２，２′・・・・・・軸受、１０
・・・・・・薄型回転盤、１２・・・・・・静止盤、１
３・・・・・・小径の回転基盤、１５・・・・・・軸受
、１６・・・・・・円弧状の棒磁石、２６゜３１・・・
・・・環状コア型磁石。FIG. 1 is a schematic perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view thereof, and FIG. 3 is a plan view showing the state in which the magnet is attached.
FIG. 4 is a partially cutaway perspective view of the winding tube holder. 1...Main shaft, 2, 2'...Bearing, 10
...Thin rotary disk, 12...Stationary disk, 1
3... Small diameter rotating base, 15... Bearing, 16... Arc-shaped bar magnet, 26°31...
...Annular core magnet.

Claims (1)

【特許請求の範囲】[Claims] １ 垂直に植設した巻戻しローラおよび該巻戻しローラ
に圧接する巻管を保持するホルダーを垂直に塔載した静
止盤を、垂直に軸受されかつ高速回転する主軸に、ベア
リングの軸受を介して取付け、該静止盤のラジアル方向
に働らく磁力線を介して回動規制を行なう磁石のうち、
一方の磁石は静止盤の周縁に、他方の磁石は静止盤の外
測で、カバー糸の通路を挾んで一方の磁石と対向する位
置に設けると呈もに、前記巻戻しローラを駆動させる回
転磁石のうち、一方の従動回転磁石は静止盤上の巻戻し
ローラと一体的に回転するように巻戻しローラ上に固定
し、他方の駆動回転磁石は静止盤の外測で、かつ上記巻
戻しローラ上の磁石に対し、カバー糸の通路を挾んでラ
ジアル方向で対向するように設け、さらに主軸と一体に
設けられた薄型回転盤を前記静止盤の直下に位置させ、
該回転盤の裏側に位置する小径の回転基盤の外周部にカ
バー糸の導出口を設けたことを特徴とするカバーリング
装置。1. A stationary plate on which a vertically installed unwinding roller and a holder for holding a winding tube in pressure contact with the unwinding roller are vertically mounted is attached to a main shaft that is vertically bearing and rotates at high speed, through the bearing of the bearing. Among the magnets that are installed and restrict rotation through lines of magnetic force that act in the radial direction of the stationary plate,
If one magnet is installed on the periphery of the stationary disk, and the other magnet is placed on the outside of the stationary disk, at a position facing the one magnet across the path of the cover yarn, both of them will rotate to drive the rewinding roller. Among the magnets, one driven rotating magnet is fixed on the rewinding roller so as to rotate integrally with the rewinding roller on the stationary disk, and the other driving rotating magnet is located outside the stationary disk and is connected to the rewinding roller on the stationary disk. The magnet on the roller is provided so as to be opposed in the radial direction across the path of the cover yarn, and further a thin rotary disk provided integrally with the main shaft is located directly below the stationary disk,
A covering device characterized in that a cover yarn outlet is provided on the outer periphery of a small-diameter rotating base located on the back side of the rotating disk.