JPH03119118A - Driving method of draft roller in super high drafting device - Google Patents

Driving method of draft roller in super high drafting device

Info

Publication number
JPH03119118A
JPH03119118A JP25730789A JP25730789A JPH03119118A JP H03119118 A JPH03119118 A JP H03119118A JP 25730789 A JP25730789 A JP 25730789A JP 25730789 A JP25730789 A JP 25730789A JP H03119118 A JPH03119118 A JP H03119118A
Authority
JP
Japan
Prior art keywords
roller
rotation
draft
drive shaft
transmitted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP25730789A
Other languages
Japanese (ja)
Inventor
Yasuyuki Noda
野田 耕之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Priority to JP25730789A priority Critical patent/JPH03119118A/en
Publication of JPH03119118A publication Critical patent/JPH03119118A/en
Pending legal-status Critical Current

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  • Spinning Or Twisting Of Yarns (AREA)

Abstract

PURPOSE:To stabilize rotation of back roller and to obtain sliver with a little draft unevenness by transmitting rotary drive of draft to a middle roller and then through transmission mechanism to a back roller. CONSTITUTION:Rollers are arranged in the order of a back roller 2, a first middle roller 3, a second middle roller 4 and a front roller 6, a driving shaft 8 and a bottom roller 3b of the first middle roller 3 are rotated and transmitted by a timing belt 9 and then sliver S is drawn while transmitting rotation of the bottom roller 3b to a bottom roller 2b of the back roller 2 by a timing belt 10 to give the objective yarn Y.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

この発明は、所謂スーパーハイドラフト装置におけるド
ラフトローラの駆動方式に関する。 (従来の技vi] 太いスライバから一挙に細い糸を紡出する所謂スーパー
ハイドラフト装置、例えば4 P、i1式ドラフト装置
においては、□台を貫通する駆動軸の回転を歯車或いは
タイミングベルト等の伝動機構を介して、ドラフト装置
中回転速度の最も遅いバックボトムローラに伝え、次い
で該バックボトムローラより回転の速い第1ミドルボト
ムローラに伝えている。そのため、駆動軸の回転をバッ
クボトムローラの低速回転に大幅に落すためには多くの
歯市列を必要とするなど、伝動1桶の構成を複雑とプる
ばかりか歯車やタイミングベルト等のスリップなどによ
って回転が安定化せず、又、駆動軸自体の回転を遅くす
ることも試みられたが、これ亦ドラフトローラの回転が
安定“しなくなるといった問題点が認められた。 然も、!JF!動軸の回転を一月バツクボトムローラに
求められるドラフト装置中の最低速度に迄落した後、そ
れよりも速い速度で回転する第1ミドルボトムローラの
回転速度進角び高めなければならないといった不合理が
認められた。 K発明が解決しようとする課題】 ドラフト装置の中で最も回転速度の遅いバックローラの
回転を円滑化し、スライバのドラ71−斑を低下するこ
とを目的とする。 K課題を解決するための手段】 ドラフト装置の駆動軸の回転を伝動門構を介してミドル
ローうに伝えた後、該ミドルローラの回転を別の伝動門
構を介してバックローラに伝える。 1作   用】 駆動軸の回転を先ずバックローラより回転の速いミドル
ローラに伝え、次いでミドルローラより回転の遅いバッ
クローラに伝えることにより回転が安定化しドラフトが
安定する。
The present invention relates to a method for driving a draft roller in a so-called super high draft device. (Conventional technique vi) In a so-called super high draft device that spins thin yarn from a thick sliver all at once, such as a 4P, i1 type draft device, the rotation of a drive shaft that passes through the □ table is controlled by a gear or a timing belt. Through the transmission mechanism, the rotation speed of the drive shaft is transmitted to the back bottom roller with the slowest rotation speed in the draft device, and then to the first middle bottom roller that rotates faster than the back bottom roller. In order to significantly reduce the rotation speed to low speed, many tooth rows are required, which not only complicates the configuration of one transmission bucket, but also causes the rotation to become unstable due to slippage of gears, timing belts, etc. Attempts were also made to slow down the rotation of the drive shaft itself, but this resulted in problems such as the rotation of the draft roller becoming unstable. It was recognized that it was unreasonable to have to increase the rotational speed advance of the first middle bottom roller, which rotates at a faster speed, after the speed had decreased to the minimum speed required in the drafting device. [Objective] The purpose is to smoothen the rotation of the back roller, which has the slowest rotational speed among the draft devices, and reduce the unevenness of the sliver driver.Means for solving the problem] After transmitting the rotation of the drive shaft to the middle row roller through a transmission gate mechanism, the rotation of the middle roller is transmitted to the back roller through another transmission gate mechanism. 1. Action: First, the rotation of the drive shaft is transmitted from the back roller. The rotation is stabilized by transmitting the rotation to the middle roller, which rotates faster, and then to the back roller, which rotates slower than the middle roller, thereby stabilizing the draft.

【実 施 例X 以下図面と共にこの発明の詳細な説明する。 第1図に示す4線式ドラフト装置1において、2はトッ
プローラ2a、ボトムローラ2bからなるバックローラ
、3はトップローラ3a、ボトムローラ3bからなる第
1ミドルローラ、4はトップローラ4a、ボトムローラ
4bの夫々にエプロン5a、5bを装架してなる第2ミ
ドルローラ、6はトップローラ5a、ボトムローラ6b
からなるフロントローラであって、バックローラ2.第
1ミドルローラ3.第2ミドルローラ4.フロント0−
ラ6の順に回転を速め、スライバガイド7を通して供給
されるスライバSを延伸し、糸Yを形成する。 然して本発明においては、第2図に示すように、機台を
貫通する駆動軸8と第1ミドルローラ3のボトムローラ
3bとの間にはタイミングベルト9を、第1ミドルロー
ラ3のボトムローラ3bとバックローラ2のボトムロー
ラ2bとの間にはタイミングベルト10を夫々装架し、
駆動軸8の回転は先ず第1ミドルローラ3のボトムロー
ラ3bに伝えられ、次いで該ボトムローラ3bの回転が
バックローラ2のボトムローラ2bに伝えられるよう構
成されている。 11はタイミングベルト9のテンションプーリ、12は
スライバガイド7を装架する架台部である。 従って今、スライバガイド7を通してスライバSが供給
され、バックローラ2と第1ミドルローラ3の間でドラ
フトされる際、駆動軸8の回転は先ずバックローラ2の
ボトムローラ2bより高速で回転する第1ミドルローラ
3のボトムローラ3bに伝えられ、次いでボトムローラ
3bの回転はそれより遅く回転するバックローラ2のボ
トムローラ2bにと伝えられるから、駆動軸8の回転は
高速回転ローラから低速回転ローラへと無理なく伝動さ
れ、バックローラ2.第1ミドルローラ3の安定した回
転を得ることができる。 上記実施例においては、スーパーハイドラフト装置とし
て4線式ドラフト装置を例にとり説明したが、5a式ド
ラフト装置の場合にもそのまま適用されることは当然で
あり、更に5線式ドラフト装屑の場合、駆動軸の回転を
先ず第2ミドルローラのボトムローラに伝え、次いで第
1ミドルローラのボトムローラ、バックローラのボトム
ローラと順次回転を伝えるよう構成することもできる。 K発明の効果】 以と詳細に述べた通り、本発明のドラフト装置における
ドラフトローラの駆動方式は、ドラフト8置の駆動軸の
回転を伝動機構を介してミドルローうに伝えた後、該ミ
ドルローラの回転を別の伝vJn構を介してバックロー
ラに伝えるものであるから、駆動軸の回転は先ず回転の
速いミドルローラのボトムローうに伝えられ、次いでミ
ドルローラより回転の遅いバックローラのボトムローラ
に伝えられるから、駆動軸とバックローラのポl〜ムロ
ーラとの間に減速のための複雑な伝動機構を設けたり、
駆動軸自体の回転自体を低速にしたりする必要がなく、
駆動軸の低速化により生ずるステックスリップ様の不安
定な回転の発生を防」トすることができ、安定したドラ
フトが可能となって高品質の糸の紡出が可能となった。
[Example X] The present invention will be described in detail below with reference to the drawings. In the four-wire drafting device 1 shown in FIG. 1, 2 is a back roller consisting of a top roller 2a and a bottom roller 2b, 3 is a first middle roller consisting of a top roller 3a and a bottom roller 3b, and 4 is a top roller 4a and a bottom roller. A second middle roller is formed by mounting aprons 5a and 5b on each roller 4b, and 6 is a top roller 5a and a bottom roller 6b.
A front roller consisting of a back roller 2. First middle roller 3. Second middle roller4. front 0-
The sliver S fed through the sliver guide 7 is drawn to form a yarn Y by speeding up the rotation in the order of the sliver 6. However, in the present invention, as shown in FIG. 3b and the bottom roller 2b of the back roller 2, a timing belt 10 is installed, respectively.
The rotation of the drive shaft 8 is first transmitted to the bottom roller 3b of the first middle roller 3, and then the rotation of the bottom roller 3b is transmitted to the bottom roller 2b of the back roller 2. 11 is a tension pulley for the timing belt 9, and 12 is a pedestal on which the sliver guide 7 is mounted. Therefore, when the sliver S is supplied through the sliver guide 7 and drafted between the back roller 2 and the first middle roller 3, the rotation of the drive shaft 8 first rotates at a higher speed than the bottom roller 2b of the back roller 2. The rotation of the drive shaft 8 is transmitted from the high speed rotation roller to the low speed rotation roller. The back roller 2. Stable rotation of the first middle roller 3 can be obtained. In the above embodiment, a 4-wire draft device was used as an example of the super high draft device, but it is of course applicable to a 5a-type draft device, and furthermore, in the case of a 5-wire draft device, Alternatively, the rotation of the drive shaft may be first transmitted to the bottom roller of the second middle roller, and then sequentially transmitted to the bottom roller of the first middle roller and the bottom roller of the back roller. [Effects of the Invention] As described in detail below, the draft roller driving method in the drafting device of the present invention is to transmit the rotation of the drive shaft at the 8th draft position to the middle row through the transmission mechanism, and then transfer the rotation of the middle roller to the middle row. Since the rotation is transmitted to the back roller via another transmission mechanism, the rotation of the drive shaft is first transmitted to the bottom row of the middle roller, which rotates faster, and then to the bottom roller of the back roller, which rotates slower than the middle roller. Therefore, a complicated transmission mechanism for deceleration is installed between the drive shaft and the back roller.
There is no need to slow down the rotation of the drive shaft itself,
It is possible to prevent the occurrence of unstable rotation such as stick slip caused by slowing down the drive shaft, and stable drafting becomes possible, making it possible to spin high-quality yarn.

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

第1図は4線式ドラフト装置の概略を示す斜視図、第2
図は駆動機構を示す斜視図である。 1・・・4線式ドラフト装置。 2・・・バックローラ。 2a、3a、4a、5a・・・トップローラ。 2b、3b、4b、6b・・・ボトムローラ。 3・・・第1ミドルローラ、  8・・・駆動軸。 9.10・・・タイミングベル(・ 第 1 図 第 図
Figure 1 is a perspective view showing the outline of a 4-wire draft device;
The figure is a perspective view showing the drive mechanism. 1...4-wire draft device. 2... Back roller. 2a, 3a, 4a, 5a...Top rollers. 2b, 3b, 4b, 6b...bottom rollers. 3...First middle roller, 8...Drive shaft. 9.10...Timing bell (Fig. 1)

Claims (1)

【特許請求の範囲】[Claims] 1、ドラフト装置の駆動軸の回転を伝動機構を介してミ
ドルローラに伝えた後、該ミドルローラの回転を別の伝
動機構を介してバックローラに伝えるスーパーハイドラ
フト装置におけるドラフトローラの駆動方式。
1. A draft roller drive system in a super high draft device in which the rotation of the drive shaft of the draft device is transmitted to the middle roller via a transmission mechanism, and then the rotation of the middle roller is transmitted to the back roller via another transmission mechanism.
JP25730789A 1989-10-02 1989-10-02 Driving method of draft roller in super high drafting device Pending JPH03119118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25730789A JPH03119118A (en) 1989-10-02 1989-10-02 Driving method of draft roller in super high drafting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25730789A JPH03119118A (en) 1989-10-02 1989-10-02 Driving method of draft roller in super high drafting device

Publications (1)

Publication Number Publication Date
JPH03119118A true JPH03119118A (en) 1991-05-21

Family

ID=17304540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25730789A Pending JPH03119118A (en) 1989-10-02 1989-10-02 Driving method of draft roller in super high drafting device

Country Status (1)

Country Link
JP (1) JPH03119118A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008274519A (en) * 2007-04-27 2008-11-13 Truetzschler Gmbh & Co Kg Device on spinning preparation machine, for example draw frame, carding machine, combing machine or the like, having drafting system
KR101932116B1 (en) * 2018-05-08 2019-03-20 신익환 Feeding device of elastic fiber for knitting based on speed change

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008274519A (en) * 2007-04-27 2008-11-13 Truetzschler Gmbh & Co Kg Device on spinning preparation machine, for example draw frame, carding machine, combing machine or the like, having drafting system
KR101932116B1 (en) * 2018-05-08 2019-03-20 신익환 Feeding device of elastic fiber for knitting based on speed change

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