JPH11256452A - Weft-holding device - Google Patents

Weft-holding device

Info

Publication number
JPH11256452A
JPH11256452A JP7844998A JP7844998A JPH11256452A JP H11256452 A JPH11256452 A JP H11256452A JP 7844998 A JP7844998 A JP 7844998A JP 7844998 A JP7844998 A JP 7844998A JP H11256452 A JPH11256452 A JP H11256452A
Authority
JP
Japan
Prior art keywords
weft
gripping
holding
actuator
force
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.)
Granted
Application number
JP7844998A
Other languages
Japanese (ja)
Other versions
JP3985880B2 (en
Inventor
Akihiko Nakada
明彦 中田
Kenji Sakurada
健司 桜田
Yukio Isa
幸夫 伊佐
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.)
Tsudakoma Corp
Original Assignee
Tsudakoma Corp
Tsudakoma Industrial Co 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 Tsudakoma Corp, Tsudakoma Industrial Co Ltd filed Critical Tsudakoma Corp
Priority to JP07844998A priority Critical patent/JP3985880B2/en
Publication of JPH11256452A publication Critical patent/JPH11256452A/en
Application granted granted Critical
Publication of JP3985880B2 publication Critical patent/JP3985880B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a weft-holding device capable of changing a holding force of the weft-holding device according to a weaving condition such as the thickness of weft, the kind of the weft, the structure of a woven fabric, and the density of the woven fabric. SOLUTION: This weft-holding device 10 having a pair of holding members 11 and 12 for holding the weft, installed at the yarn-feeding side of a mill-edge loom 1 between a weft-cutting device 8 for cutting the weft 2 after beating, and a selvage at the yarn-feeding side along a moving locus of the weft 2 in a warp 4 direction, an actuator 15 for controlling the holding power, connected to the holding member 11, and a controller connected to the actuator is constituted so that the actuator 15 may be moved according to a weaving condition by the controller at the time of weaving to control the holding power of the weft 2 acting between the pair of the holding members 11 and 12.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の技術分野】本発明は、断片織機の給糸側で、筬
打ち後の緯糸を把持する装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for gripping a weft after beating on the yarn feeding side of a fragment loom.

【0002】[0002]

【従来の技術】流体噴射式織機のような断片織機におい
て、緯入れされた緯糸は、毎回筬打ちされた直後に、織
布の給糸側の織り端と緯入れノズルとの間に配置された
緯糸切断装置により切断される。緯糸切断前において
は、緯糸に所定の張力が掛けられているので、緯糸が切
断された直後に、その反動で緯糸にスプリングバック作
用が働く。このとき、緯糸は、スプリングバック作用に
より、反給糸側方向に移動しようとする。このため、給
糸側の織り端部において、緯糸と経糸または耳糸との絡
み具合が不充分な場合には、この部分で緯糸の緩みが発
生する。
2. Description of the Related Art In a fragmentary loom such as a fluid jet loom, a weft inserted weft is disposed between a weaving end on a yarn feed side of a woven fabric and a weft insertion nozzle immediately after being beaten each time. It is cut by a weft cutting device. Before the weft is cut, a predetermined tension is applied to the weft, so that immediately after the cut of the weft, the reaction of the weft causes a spring-back effect on the weft. At this time, the weft attempts to move in the direction opposite to the yarn feeding side due to the springback action. For this reason, if the degree of entanglement between the weft and the warp or the ear yarn is insufficient at the weaving end on the yarn supply side, the looseness of the weft occurs at this portion.

【0003】上記の緩みを解決するための手段として、
従来、緯糸切断装置と織布の給糸側の織り端との間に、
緯糸を把持する装置(緯糸把持装置)を配置して、緯糸
を把持しながら切断することにより、切断時に緯糸のス
プリングバック作用が働かないようにしている。上記の
ような緯糸把持装置として、例えば一対の把持部材の間
に緯糸を挿入し、前記把持部材に所定の弾性力を掛ける
ことにより、弾性力に基づく把持力により、緯糸を把持
するような装置が広く知られている。
[0003] As means for solving the above loosening,
Conventionally, between the weft cutting device and the weaving end of the woven fabric on the yarn feeding side,
A device for gripping the weft (weft gripping device) is arranged and cut while gripping the weft so that the spring back action of the weft does not work at the time of cutting. As a weft holding device as described above, for example, a device that inserts a weft between a pair of holding members and applies a predetermined elastic force to the holding member, thereby holding the weft by a holding force based on the elastic force. Is widely known.

【0004】[0004]

【従来技術の課題】上記のような従来の緯糸把持装置を
用いて、緯糸の把持を行う場合、緯糸は、筬打ちにより
織り口へ運ばれる過程で、緯糸把持装置の一対の把持部
材の間に、それらにかかる弾性力に逆らって挿入され、
把持される。このとき、緯糸の種類に応じて、適切な弾
性力が一対の把持部材の間にかかるように、織機の停止
時に手動で調整することはできるが、製織途中で、弾性
力の変更は不可能である。
2. Description of the Related Art When a weft is gripped by using the conventional weft gripping device as described above, the weft is transported to a weaving opening by a beating process, and the weft is held between a pair of gripping members of the weft gripping device. Is inserted against the elastic force on them,
Is grasped. At this time, depending on the type of the weft, it is possible to manually adjust the elastic force between the pair of gripping members when the loom is stopped, but it is not possible to change the elastic force during weaving. It is.

【0005】しかし、異種異番手の多色緯入れを行う場
合、緯糸に充分な把持力が加わるように、緯糸把持装置
にかける弾性力を調整すると、糸強度が弱い緯糸のとき
には緯糸挿入時に緯糸の強度が弾性力に対して打ち勝つ
ことができず、糸切れを起こすことがある。一方、逆に
糸強度が弱い緯糸が糸切れしないように、緯糸把持装置
にかける弾性力を小さくすると、糸強度が弱くない緯糸
に対して、充分な把持力を与えることができないという
不具合がある。
However, when performing multicolor weft insertion of different kinds of different numbers, if the elastic force applied to the weft gripping device is adjusted so that a sufficient gripping force is applied to the weft, when the weft has weak yarn strength, the weft is inserted when the weft is inserted. May not be able to overcome the elastic force, and thread breakage may occur. On the other hand, if the elastic force applied to the weft gripping device is reduced so that the weft with weak yarn strength does not break, there is a problem that a sufficient gripping force cannot be given to a weft with weak yarn strength. .

【0006】またパイル製織の場合、ルーズピックのと
きには、緯糸は織り口までしっかりと筬打ちされず、緯
糸と経糸または耳糸との絡み具合が不充分となるので、
緯糸が織り口までしっかりと筬打ちされるファーストピ
ックのほか、ボーダー織り、または地織りのときより
も、緯糸把持装置の把持力を大きくする必要がある。こ
の場合、あまり大きな把持力を掛けすぎると、ファース
トピック、ボーダー織りまたは地織りのときには、緯糸
が過張力になり、緯糸切れを起こすことがある。あるい
は、ボーダー糸などの太番手の糸が把持部分に入りにく
くなるか、または入らないことが発生して、給糸側の織
り端部分に緩みが生じる。
In the case of pile weaving, in the case of a loose pick, the weft is not beaten firmly to the weaving opening, and the degree of entanglement between the weft and the warp or ear thread becomes insufficient.
In addition to the first pick in which the weft is beaten firmly to the weaving mouth, it is necessary to increase the gripping force of the weft gripping device as compared with the border weaving or the ground weaving. In this case, if a too large gripping force is applied, the weft becomes over-tensioned at the time of the first pick, the border weave, or the ground weave, which may cause the weft breakage. Alternatively, a thick yarn such as a border yarn is difficult to enter or does not enter the gripping portion, so that the woven end portion on the yarn supply side is loosened.

【0007】[0007]

【発明の目的】本発明の目的は、緯糸の太さ、緯糸の種
類、織物の組織、織物の密度、織機の回転数などの製織
条件の変化に応じて、製織中に、緯糸把持装置の把持力
を変更可能とすることである。
SUMMARY OF THE INVENTION The object of the present invention is to provide a weft gripping device during weaving according to changes in weaving conditions such as the thickness of the weft, the type of the weft, the structure of the fabric, the density of the fabric, and the number of revolutions of the loom. That is, the grip force can be changed.

【0008】[0008]

【発明の解決手段】上記目的のもとに、本発明は、請求
項1の緯糸把持装置において、断片織機の給糸側で、筬
打ち後の緯糸を切断する緯糸切断装置と織布の給糸側の
織り端との間に、経糸方向で緯糸の移動軌跡上に沿って
緯糸把持用の一対の把持部材を設置し、この把持部材に
把持力加減用のアクチュエータを連結し、このアクチュ
エータに制御装置を接続し、製織中に製織条件に応じて
制御装置によりアクチュエータを駆動し、一対の把持部
材の間に作用する緯糸の把持力を調整している。
According to the present invention, there is provided a weft holding device according to claim 1, wherein a weft cutting device for cutting a weft after beating is provided on a yarn feeding side of a fragmentary loom, and a woven fabric feeding device. Between the weaving end on the yarn side, a pair of gripping members for gripping the weft are installed along the movement locus of the weft in the warp direction, and an actuator for increasing / decreasing gripping force is connected to the gripping member, and the actuator is connected to the actuator. A control device is connected, and during the weaving, the actuator is driven by the control device according to the weaving conditions to adjust the gripping force of the weft acting between the pair of gripping members.

【0009】本発明は、請求項2の緯糸把持装置におい
て、断片織機の給糸側で、筬打ち後の緯糸を切断する緯
糸切断装置と織布の給糸側の織り端との間に、経糸方向
で緯糸の移動軌跡上に沿って緯糸把持用の一対の把持部
材を設置し、この把持部材に弾性部材を介して把持力加
減用のアクチュエータを連結し、このアクチュエータに
制御装置を接続し、製織中に製織条件に応じて制御装置
によりアクチュエータを駆動し、弾性部材の弾性力を増
減させて、一対の把持部材の間に作用する緯糸の把持力
を調整している。
According to a second aspect of the present invention, there is provided a weft holding device according to the second aspect, wherein a weft cutting device for cutting the weft after beating and a weaving end of the woven fabric on the yarn feeding side are provided on the yarn feeding side of the fragmentary loom. A pair of gripping members for gripping the weft are installed along the movement locus of the weft in the warp direction, an actuator for increasing / decreasing gripping force is connected to the gripping member via an elastic member, and a control device is connected to the actuator. During the weaving, the actuator is driven by the control device in accordance with the weaving conditions, and the elastic force of the elastic member is increased or decreased to adjust the gripping force of the weft acting between the pair of gripping members.

【0010】また本発明は、請求項3の緯糸把持装置に
おいて、布移動式パイル織機の給糸側で筬打ち後の緯糸
を切断する緯糸切断装置と織布の給糸側の織り端との間
に、経糸方向で緯糸の移動軌跡上に沿って緯糸把持用の
一対の把持部材を設置し、把持部材に弾性部材を圧接
し、緯糸把持装置を布移動に伴ってルーズピック時の位
置とファーストピック時の位置とに移動可能に設置し、
緯糸把持装置に緯糸把持装置の移動に伴って弾性部材の
弾性力を切り換える弾性力調整手段を設けしている。
According to the present invention, there is provided a weft holding device according to claim 3, wherein the weft cutting device for cutting the weft after beating on the feeding side of the cloth moving pile loom and the weaving end of the woven fabric on the feeding side. In the meantime, a pair of gripping members for weft gripping is installed along the movement locus of the weft in the warp direction, the elastic member is pressed against the gripping member, and the position of the weft gripping device at the time of loose pick with the cloth movement. Installed so that it can move to the position at the time of the first pick,
The weft holding device is provided with elastic force adjusting means for switching the elastic force of the elastic member in accordance with the movement of the weft holding device.

【0011】さらに、本発明は、請求項4の緯糸把持装
置において、布移動式または筬打ち点移動式パイル織機
の給糸側で、筬打ち後の緯糸を切断する緯糸切断装置と
織布の給糸側の織り端との間に、経糸方向で緯糸の移動
軌跡上に沿って緯糸把持用の一対の把持部材を設置し、
この把持部材に弾性部材を圧接させ、把持部材のルーズ
ピック位置での緯糸の把持部分とファーストピック位置
での緯糸の把持部分とにかかる把持力を各々異なる大き
さに設定している。
Further, according to the present invention, in the weft holding device according to the fourth aspect, a weft cutting device for cutting a weft after beating and a weft cutting device on a yarn feeding side of a pile loom of a cloth movable type or a beating point movable type. Between the weaving end on the yarn supply side, a pair of gripping members for weft gripping is installed along the movement locus of the weft in the warp direction,
An elastic member is pressed against this gripping member, and the gripping force applied to the weft gripping portion at the loose pick position of the gripping member and the weft gripping portion at the first pick position are set to different magnitudes.

【0012】そして、請求項4において、把持部材のル
ーズピック位置での緯糸の把持部分とファーストピック
位置での緯糸の把持部分とにかかる把持力を各々異なる
大きさに設定する手段は、、請求項5によれば、把持部
材の緯糸把持部分の形状および摩擦力のうち少なくとも
いずれかをルーズピック位置とファーストピック位置と
で相違させることより、また、請求項6によれば、ルー
ズピック位置での把持部材の緯糸把持部、ファーストピ
ック位置での把持部材の緯糸把持部ごとに弾性力の異な
る弾性部材を設けている。
According to claim 4, the means for setting the gripping force applied to the weft holding portion at the loose pick position of the holding member and the weft holding portion at the first pick position to different magnitudes, According to the fifth aspect, at least one of the shape and the frictional force of the weft gripping portion of the gripping member is different between the loose pick position and the first pick position, and according to the sixth aspect, at the loose pick position An elastic member having a different elastic force is provided for each of the weft holding portion of the holding member and the weft holding portion of the holding member at the first pick position.

【0013】[0013]

【発明の実施の形態】図1は、断片織機1としての流体
噴射式織機に対して、本発明の緯糸把持装置10を組み
込んだ状態を示す。流体噴射式織機において、緯糸2
は、緯入れノズル3によって、経糸4の開口9内に緯入
れされ、筬5によって、織り口6に筬打ちされて、織布
7を形成し、その後、緯入れノズル3と織布7の給糸側
の織り端との間で、緯糸切断装置8によって切断され
る。
FIG. 1 shows a state in which a weft holding device 10 of the present invention is incorporated in a fluid jet loom as a fragment loom 1. As shown in FIG. In a fluid jet loom, weft 2
Is inserted into the opening 9 of the warp yarn 4 by the weft insertion nozzle 3 and beaten into the weaving opening 6 by the reed 5 to form a woven fabric 7. The yarn is cut by a weft cutting device 8 between the yarn feeding side and the weaving end.

【0014】そして、緯糸把持装置10は、織布7の給
糸側の織り端と緯糸切断装置8との間にあって、筬打ち
された直後に、緯入れノズル3の先端から給糸側の織り
端に連なる状態の緯糸2を挟み込んで、緯糸切断装置8
により切断される際に、緯糸2を把持し、その後に開放
する。
The weft holding device 10 is located between the weaving end of the woven fabric 7 on the yarn feeding side and the weft cutting device 8 and immediately after being beaten, the weft from the tip of the weft insertion nozzle 3 is woven on the yarn feeding side. The weft 2 in a state of being connected to the end is sandwiched, and the weft cutting device 8
When the cutting is performed, the weft 2 is gripped and then released.

【0015】本発明の緯糸把持装置10は、請求項1、
2に対応する具体例1(図2ないし図5)、請求項3に
対応する具体例2(図6)、請求項4、5、6に対応す
る具体例3(図7ないし図9)によって具体化される。
The weft holding device 10 of the present invention is characterized in that
Specific example 1 corresponding to claim 2 (FIGS. 2 to 5), specific example 2 corresponding to claim 3 (FIG. 6), and specific example 3 corresponding to claims 4, 5, and 6 (FIGS. 7 to 9) Be embodied.

【0016】[0016]

【具体例1】図2において、緯糸把持装置10は、緯糸
切断装置8と織布7の給糸側の織り端との間で、経糸4
の方向で緯糸4の移動軌跡上に沿って一対の把持部材1
1、12を有している。一方の把持部材11は、取り付
け位置に固定されており、また他方の把持部材12は、
一方の把持部材11に対し接離自在であり、コイルばね
などの弾性部材13、この弾性部材13の押え部材14
を介し、例えば直動型のアクチュエータ15の出力軸1
6に連結されている。なお、アクチュエータ15は、把
持部材11と一体のブラケット17に固定されており、
後述の制御装置20によって制御されるようになってい
る。
[Specific Example 1] In FIG. 2, a weft holding device 10 moves a warp 4 between a weft cutting device 8 and a weaving end of a woven fabric 7 on a yarn feeding side.
Along the locus of movement of the weft 4 in the direction of
1 and 12. One gripping member 11 is fixed at the mounting position, and the other gripping member 12 is
An elastic member 13 such as a coil spring can be freely moved toward and away from one gripping member 11, and a pressing member 14 for the elastic member 13.
Through the output shaft 1 of the direct-acting actuator 15, for example.
6. Note that the actuator 15 is fixed to a bracket 17 integrated with the gripping member 11,
It is controlled by a control device 20 described later.

【0017】緯糸2は、一対の把持部材11、12の対
向面つまり把持面34、35の間に入り込み、それらの
間に働く弾性部材13の弾性力に基づく把持力によって
把持される。緯糸2が進入する把持部材11と把持部材
12との間の入口部分(把持面34、35)は、進入方
向にたいして開き加減の曲面ないしテーパ面として形成
し、緯糸2が入りやすい形状とするのが好ましい。
The weft 2 enters between the opposing surfaces of the pair of gripping members 11 and 12, ie, between the gripping surfaces 34 and 35, and is gripped by the gripping force based on the elastic force of the elastic member 13 acting between them. The entrance portions (grip surfaces 34, 35) between the grip members 11 and 12 into which the weft yarn 2 enters are formed as curved or tapered surfaces that open and close in the direction of entry so that the weft 2 can easily enter. Is preferred.

【0018】制御装置20が製織条件に応じてソレノイ
ドや空気圧シリンダなどのアクチュエータ15を駆動
し、出力軸16を軸線方向に往復移動させれば、それに
伴い押え部材14は、弾性部材13の弾力を加減する方
向に往復移動する。このとき、弾性部材13が伸縮し
て、弾性力が変化するので、一対の把持部材11、12
の把持面34、35の間に作用する力すなわち緯糸2に
対する把持力を変更することができる。
When the control device 20 drives the actuator 15 such as a solenoid or a pneumatic cylinder in accordance with the weaving conditions, and reciprocates the output shaft 16 in the axial direction, the pressing member 14 reduces the elasticity of the elastic member 13 accordingly. It reciprocates in the direction of adjustment. At this time, the elastic member 13 expands and contracts, and the elastic force changes.
The force acting between the gripping surfaces 34, 35, that is, the gripping force on the weft 2 can be changed.

【0019】アクチュエータ15は、電気式、空気式、
あるいは油圧式のうちどの方式を用いてもよいが、緯糸
把持装置10にかかる負荷は小さいので、制御性が最も
良好な電気式アクチュエータ(ソレノイドやモータ)を
用いるのが好ましい。出力軸16の直線方向の変位は、
オン・オフ制御による2位置制御を基本とする。この場
合、例えば緯糸2の太さという条件における2つの因子
(太い緯糸・細い緯糸)に対して、太い緯糸2に対する
出力軸16の位置と細い緯糸2に対する出力軸16の位
置とを2位置制御することで、各々に対する把持力を切
り換えることができる。これは、その他の製織条件例え
ば緯糸の種類、織布の組織、織布の密度などにおける2
つの因子に対しても適用できる。必要ならば、サーボ制
御による多点位置制御を用いることで、より多数の因子
に対応することもできる。
The actuator 15 is of an electric type, a pneumatic type,
Alternatively, any of hydraulic systems may be used, but since the load applied to the weft gripping device 10 is small, it is preferable to use an electric actuator (solenoid or motor) having the best controllability. The displacement of the output shaft 16 in the linear direction is
Basically, two-position control by on / off control is used. In this case, for example, for two factors (thick weft / thin weft) in the condition of the thickness of the weft 2, two positions of the position of the output shaft 16 for the thick weft 2 and the position of the output shaft 16 for the thin weft 2 are controlled. By doing so, the gripping force for each can be switched. This is due to other weaving conditions such as weft type, woven fabric texture, woven fabric density, etc.
It can be applied to one factor. If necessary, more factors can be accommodated by using multi-point position control by servo control.

【0020】弾性部材13に変位を与えて、弾性力を調
整する手段は、図2に限らず、図3に示すように、例え
ばモータなど回転式のアクチュエータ15の出力軸16
にレバー21の一端を固定し、このレバー21の他端部
分と押え部材14との間にピン23により連結した連結
棒22を介して、押え部材14を往復運動させる構成と
してもよい。
The means for adjusting the elastic force by applying a displacement to the elastic member 13 is not limited to FIG. 2, but as shown in FIG. 3, for example, an output shaft 16 of a rotary actuator 15 such as a motor.
One end of the lever 21 may be fixed to the lever 21 and the holding member 14 may be reciprocated via a connecting rod 22 connected by a pin 23 between the other end of the lever 21 and the holding member 14.

【0021】アクチュエータ15と可動側の把持部材1
2との間に、必ずしも弾性部材13を介在させる必要は
ない。弾性部材13を介在させないとき、その制御は、
2位置制御ではなく、アクチュエータ15に作用する電
磁力、空気圧、または油圧を調整し、アクチュエータ1
5から可動側の把持部材12に伝わる力を比例制御すれ
ばよい。しかし、アクチュエータ15と把持部材12と
の間に弾性部材13を介在させるほうが緯糸2の把持に
ともなう瞬間的な衝撃を吸収することができるので、緯
糸2にかかる負担が軽減でき、好ましい実施例となる。
Actuator 15 and movable gripping member 1
It is not always necessary to interpose the elastic member 13 between the first and second members. When the elastic member 13 is not interposed, the control is as follows.
Instead of two-position control, the electromagnetic force, air pressure, or oil pressure acting on the actuator 15 is adjusted, and the actuator 1 is adjusted.
The force transmitted from 5 to the movable holding member 12 may be proportionally controlled. However, when the elastic member 13 is interposed between the actuator 15 and the gripping member 12, the instantaneous impact accompanying the gripping of the weft 2 can be absorbed, so that the load on the weft 2 can be reduced. Become.

【0022】図4は、ソレノイドあるいはモータによる
アクチュエータ15により出力軸16を2位置制御する
ときの制御系を示す。制御装置20は、所定の製織条件
の因子Aまたは因子Bを指定する信号を受け、織機の主
軸モータ24に連結されたエンコーダ25から出力され
る織機回転角度θを入力として、所定の角度でアクチュ
エータ15にオンまたはオフ信号を発する。そこで、ア
クチュエータ15は、オンまたはオフ信号を受けて、出
力軸16を因子Aに対応する位置または因子Bに対応す
る位置に移動させる。
FIG. 4 shows a control system when the output shaft 16 is controlled at two positions by an actuator 15 using a solenoid or a motor. The control device 20 receives a signal designating a factor A or a factor B of a predetermined weaving condition, receives the loom rotation angle θ output from the encoder 25 connected to the main shaft motor 24 of the loom, and sets the actuator at a predetermined angle. At 15 an on or off signal is issued. Therefore, the actuator 15 receives the ON or OFF signal and moves the output shaft 16 to a position corresponding to the factor A or a position corresponding to the factor B.

【0023】つぎに、図5は、アクチュエータ15とし
て単動式空気圧シリンダを制御する例を示す。この場
合、アクチュエータ15に空気供給源26、調圧弁27
および電磁式給気弁28を介してアクチュエータ15に
給気が行われ、また電磁式排気弁29によって排気が行
われるようになっている。制御装置20から電磁式供給
弁26および電磁式排気弁29にオンまたはオフの信号
が発せられと、アクチュエータ15は、圧力空気の給気
と排気とにより、出力軸16を因子Aに対する位置また
は因子Bに対する位置に移動させる。
FIG. 5 shows an example in which a single-acting pneumatic cylinder is controlled as the actuator 15. In this case, the air supply source 26 and the pressure regulating valve 27
The actuator 15 is supplied with air through an electromagnetic air supply valve 28 and exhausted by an electromagnetic exhaust valve 29. When an ON or OFF signal is issued from the control device 20 to the electromagnetic supply valve 26 and the electromagnetic exhaust valve 29, the actuator 15 causes the output shaft 16 to move to the position or the factor A with respect to the factor A by supplying and exhausting the compressed air. Move to the position for B.

【0024】空気圧シリンダは、単動式すなわち1個の
空気圧供給ポートで前進または後退方向に動作し、圧力
空気を排気すると内蔵されたスプリング力によって原点
に復帰する形式のシリンダであるが、それに限らず、複
動シリンダすなわち2個の空気圧供給ポートで交互に圧
力空気を供給・排気することで、前進または後退させる
という形式のものを用いれば、単動シリンダよりも確実
な位置制御ができる。
The pneumatic cylinder is a single-acting cylinder, that is, a cylinder operated in a forward or backward direction by one pneumatic supply port and returning to the origin by a built-in spring force when exhausting the pressurized air, but is not limited thereto. However, if a double-acting cylinder, that is, a type in which pressure air is alternately supplied and exhausted by two air pressure supply ports to advance or retract, is used, position control can be performed more reliably than a single-acting cylinder.

【0025】[0025]

【具体例2】図6は、ブラケット17に対して押え棒3
0を一対の把持部材11、12の接離方向に移動自在に
設け、押え棒30を押え部材14に連結し、さらに上端
部分で上縁に傾斜カム面を有するカム18を一体的に形
成し、そのカム18の傾斜カム面に接する位置にカムロ
ーラ19を固定軸31に回転自在に取り付けた例であ
る。ここで、カム18およびカムローラ19は、弾性力
調整手段32を構成している。
[Embodiment 2] FIG.
0 is provided movably in the direction of contact and separation of the pair of gripping members 11 and 12, the pressing rod 30 is connected to the pressing member 14, and a cam 18 having an inclined cam surface at the upper edge at the upper end portion is integrally formed. In this example, a cam roller 19 is rotatably mounted on a fixed shaft 31 at a position in contact with the inclined cam surface of the cam 18. Here, the cam 18 and the cam roller 19 constitute an elastic force adjusting means 32.

【0026】布移動式のパイル織機において、緯糸把持
装置10のブラケット17は、布移動させる部材に連結
されており、布移動にともない、ルーズピック時の位置
とファーストピック時の位置とを移動可能な状態で取り
付けられる。一方、固定軸31は、布移動に関係なく、
常に一定の位置に保持されている。
In the cloth moving pile loom, the bracket 17 of the weft holding device 10 is connected to a member for moving the cloth, and can move between the position of the loose pick and the position of the first pick as the cloth moves. Can be installed in any condition. On the other hand, the fixed shaft 31 is
It is always kept in a fixed position.

【0027】製織時に、布移動にともなって、緯糸把持
装置10のブラケット17が布移動方向に変位すると、
カム18の傾斜カム面に対するカムローラ19の接触位
置が異なるため、押え棒30は、弾性部材13に対する
圧縮力を増減させる。このため、弾性部材13は、ルー
ズピック時の位置で縮み、ファーストピック時の位置で
伸びる。したがって、ルーズピック時の位置のほうがフ
ァーストピック時の位置よりも強い把持力となる。この
例によれば、緯糸把持装置10のブラケット17の移動
にともない、弾性力調整手段32よって、押え部材14
が弾性部材13の弾力を加減する方向に移動するため、
電気的な制御は、不要であり、把持動作は、布移動と確
実に同期する。
At the time of weaving, when the bracket 17 of the weft holding device 10 is displaced in the cloth moving direction due to the cloth movement,
Since the contact position of the cam roller 19 with the inclined cam surface of the cam 18 is different, the pressing bar 30 increases or decreases the compressive force on the elastic member 13. For this reason, the elastic member 13 contracts at the position of the loose pick and expands at the position of the first pick. Therefore, the position at the time of the loose pick has a stronger gripping force than the position at the time of the first pick. According to this example, with the movement of the bracket 17 of the weft holding device 10, the elastic force adjusting means 32 causes the pressing member 14 to move.
Moves in a direction to increase or decrease the elasticity of the elastic member 13,
No electrical control is required and the gripping operation is reliably synchronized with the cloth movement.

【0028】[0028]

【具体例3】図7、8、9、10は、布移動式のパイル
織機において、緯糸把持装置10の全体を布移動ととも
に移動させ、弾性部材13の弾性力を変更しないで、ル
ーズピック時の位置での緯糸2に対する把持力とファー
ストピック時の位置での緯糸2に対する把持力とを相違
させる具体例を示している。
[Embodiment 3] FIGS. 7, 8, 9 and 10 show a cloth picking type loom in which the whole of the weft gripping device 10 is moved together with the cloth movement and the elastic force of the elastic member 13 is not changed. 3 shows a specific example in which the gripping force on the weft 2 at the position of the first pick is different from the gripping force on the weft 2 at the position at the time of the first pick.

【0029】図7の例は、把持部材11の把持面34と
把持部材12の把持面35との接触面において、ファー
ストピック時に、緯糸2を把持する位置つまり緯糸把持
部Fにわずかな隙間を設けている。このようにすれば、
緯糸2が把持部材11の把持面34と把持部材12の把
持面35との接触面において、同じ弾性力で挟まれて
も、ファーストピック時の緯糸2が把持される緯糸把持
部Fのほうがルーズピック時の緯糸2が把持される位置
つまり緯糸把持部Lよりも小さな把持力を受けるように
することができる。なお、押え部材14は、ナット33
によりブラケット17に固定されている。
In the example shown in FIG. 7, a slight gap is formed in the contact surface between the holding surface 34 of the holding member 11 and the holding surface 35 of the holding member 12 at the time of the first pick at the position where the weft 2 is held, that is, the weft holding portion F. Provided. If you do this,
Even if the weft 2 is sandwiched by the same elastic force on the contact surface between the grip surface 34 of the grip member 11 and the grip surface 35 of the grip member 12, the weft grip portion F on which the weft 2 is gripped during the first pick is looser. It is possible to receive a gripping force smaller than the position where the weft 2 is gripped at the time of picking, that is, the weft gripping portion L. Note that the holding member 14 includes a nut 33.
Is fixed to the bracket 17.

【0030】また図8に示すように、把持部材11の把
持面34および把持部材12の把持面35において、フ
ァーストピック時の緯糸把持部Fの断面形状が平面であ
るのに対し、ルーズピック時の緯糸把持部Lの断面形状
を変えて、緯糸2の屈折が大きくなるように、またはロ
ーレット状の凹凸面にして、摩擦が大きくなるような面
にすることによって、緯糸把持部Lの部分での把持力を
緯糸把持部Fよりも大きくすることができる。なお、こ
れらは、一例であるから、他にも緯糸把持部Fの材質と
緯糸把持部Lの材質とを変えて、両者の材質の摩擦係数
の違いを利用して、摩擦力による把持力を変えるなどの
手段を講じることもできる。
As shown in FIG. 8, the cross-sectional shape of the weft gripping portion F at the time of the first pick is flat on the gripping surface 34 of the gripping member 11 and the gripping surface 35 of the gripping member 12. By changing the cross-sectional shape of the weft holding portion L so as to increase the refraction of the weft 2, or by forming a knurled uneven surface to increase friction, the weft holding portion L Can be made larger than the weft holding portion F. In addition, since these are examples, the material of the weft gripping portion F and the material of the weft gripping portion L are also changed, and the difference in friction coefficient between the two materials is used to reduce the gripping force due to the frictional force. You can also take steps to change it.

【0031】さらに図9のように、ファーストピック時
の緯糸把持部Fでの把持力とルーズピック時の緯糸把持
部Lでの把持力と各々異なる大きさに設定するために、
可動側の把持部材12を経糸方向に沿って複数例えば2
つ設け、ルーズピック時の緯糸把持部Lでの把持部材1
2、ファーストピック時の緯糸把持部Fでの把持部材1
2ごとに弾性力の異なる弾性部材13を設ける手段もあ
る。なお、把持部材12は、図示のように、2つに分割
されているほうがより効果的であるが、必ずしも分割さ
れていなくても、1つの把持部材12に弾性力の異なる
2またはそれ以上の弾性部材13を経糸方向に沿って設
ければ、ファーストピック時の緯糸把持部Fでの把持力
とルーズピック時の緯糸把持部Lでの把持力とをそれぞ
れ異なる大きさに設定できる。
Further, as shown in FIG. 9, in order to set the gripping force at the weft gripping portion F at the time of the first pick and the gripping force at the weft gripping portion L at the time of the loose pick at different magnitudes,
A plurality of movable members 12 such as 2
Holding member 1 at the weft holding portion L at the time of loose pick
2. The gripping member 1 at the weft gripping part F at the time of the first pick
There is also a means for providing an elastic member 13 having a different elastic force every two. It is more effective to divide the gripping member 12 into two as shown in the figure. However, even if the gripping member 12 is not always divided, the gripping member 12 may have two or more elastic members having different elastic forces. If the elastic member 13 is provided along the warp direction, the gripping force at the weft gripping portion F during the first pick and the gripping force at the weft gripping portion L during the loose pick can be set to different sizes.

【0032】しかし、図9の場合、ファーストピック時
の緯糸把持部Fで把持される緯糸2は、必ずルーズピッ
ク時の緯糸把持部Lを通過しなければならず、緯糸把持
部Lでの強い把持力により通過しにくいことも予測され
る。そこで、図10に示すように、例えば緯糸把持部L
に作用する弾性力をソレノイドなどのアクチュエータ1
5により可変として、ファーストピック時の弾性力を緩
めるようにすれば、上記の問題は解決される。もちろ
ん、図11に見られるように2つの把持部材12は、ア
クチュエータ15により、それぞれ独立に制御すること
もできる。これによれば、ファーストピック時とボーダ
ー糸等、他カラーの緯糸2とで、アクチュエータ15の
弾性部材13を押す力またはストロークを変更すること
で、糸種、製織条件に最適な把持力を与えることができ
る。なお、図7ないし図11で示す例は、緯糸把持装置
10のブラケット17を固定して、筬打ち点移動式のパ
イル織機にも適用できる。
However, in the case of FIG. 9, the weft 2 grasped by the weft grasping portion F at the time of the first pick must always pass through the weft grasping portion L at the time of the loose pick. It is also expected that it is difficult to pass due to the gripping force. Therefore, as shown in FIG.
Actuator 1 such as a solenoid
The above problem can be solved by changing the elastic force at the time of the first pick by changing the elastic force at the time of the first pick. Of course, as shown in FIG. 11, the two gripping members 12 can be independently controlled by the actuator 15. According to this, by changing the force or stroke of pressing the elastic member 13 of the actuator 15 between the first pick and the weft 2 of another color such as a border yarn, an optimum gripping force is given to the yarn type and weaving conditions. be able to. The examples shown in FIGS. 7 to 11 can also be applied to a pile loom that moves the beating point by fixing the bracket 17 of the weft holding device 10.

【0033】[0033]

【発明の効果】本発明によれば、緯糸把持装置の把持力
を製織条件の変化に応じて変更可能にすることで、異種
異番手の緯糸の製織時やパイル製織時において、織布の
給糸側の織り端部分の緩みを防止し、織布品質を向上す
ることができる。
According to the present invention, the gripping force of the weft gripping device can be changed according to the change of the weaving conditions, so that the supply of the woven cloth can be performed at the time of weaving the different kinds of wefts and piles. Looseness of the woven end portion on the yarn side can be prevented, and woven fabric quality can be improved.

【0034】そして、請求項1の構成よれば、アクチュ
エータによって適切な把持力に設定でき、またアクチュ
エータの動作タイミングの設定によって、把持力の作用
期間が任意に設定できるため、あらゆる製織条件に対し
て柔軟に対応できる。請求項2によれば、弾性部材が把
持力の急変を緩和するため、緯糸にかかる負担が軽減で
きる。
According to the first aspect of the present invention, an appropriate gripping force can be set by the actuator, and the operation period of the gripping force can be arbitrarily set by setting the operation timing of the actuator. Can respond flexibly. According to the second aspect, since the elastic member alleviates a sudden change in the gripping force, the load on the weft can be reduced.

【0035】また、請求項3によれば、弾性力調整手段
の機能によって布移動と同期して、ルーズピック時とフ
ァーストピック時とで異なる把持力が機械的に設定で
き、しかも特別な電気的な制御系が不必要となるため、
構成が簡略化できる。
According to the third aspect of the present invention, different gripping forces can be mechanically set between the loose pick and the first pick in synchronization with the movement of the cloth by the function of the elastic force adjusting means. Control system is unnecessary,
The configuration can be simplified.

【0036】さらに、請求項4の装置によばれ、布移動
式あるいは筬打ち点移動式のパイル織機において、緯糸
把持部の形状や、複数の弾性部材により、ルーズピック
位置とファーストピック位置とで緯糸把持部にかかる把
持力がそれぞれ異なる把持力になるため、ルーズピック
やファーストピックに応じて適切な把持力が設定でき
る。
Further, according to the apparatus of the fourth aspect, in the pile loom of the cloth moving type or the beating point moving type, the loose pick position and the first pick position are determined by the shape of the weft holding portion and the plurality of elastic members. Since the gripping forces applied to the weft gripping portions are different gripping forces, an appropriate gripping force can be set according to a loose pick or a first pick.

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

【図1】断片織機に本発明の緯糸把持装置を組み込んだ
状態の平面図である。
FIG. 1 is a plan view showing a state in which a weft holding device of the present invention is incorporated in a fragment loom.

【図2】本発明の緯糸把持装置の一部断面側面図であ
る。
FIG. 2 is a partial cross-sectional side view of the weft holding device of the present invention.

【図3】本発明の緯糸把持装置の一部断面側面図であ
る。
FIG. 3 is a partially sectional side view of the weft holding device of the present invention.

【図4】制御装置のブロック線図である。FIG. 4 is a block diagram of a control device.

【図5】制御装置のブロック線図である。FIG. 5 is a block diagram of a control device.

【図6】本発明の緯糸把持装置の一部断面側面図であ
る。
FIG. 6 is a partially sectional side view of the weft holding device of the present invention.

【図7】本発明の緯糸把持装置の一部断面側面図であ
る。
FIG. 7 is a partially sectional side view of the weft holding device of the present invention.

【図8】一対の把持部材の把持面の断面図である。FIG. 8 is a sectional view of a gripping surface of a pair of gripping members.

【図9】本発明の緯糸把持装置の一部断面側面図であ
る。
FIG. 9 is a partially sectional side view of the weft holding device of the present invention.

【図10】本発明の緯糸把持装置の一部断面側面図であ
る。
FIG. 10 is a partially sectional side view of the weft holding device of the present invention.

【図11】本発明の緯糸把持装置の一部断面側面図であ
る。
FIG. 11 is a partially sectional side view of the weft holding device of the present invention.

【符号の説明】[Explanation of symbols]

1 断片織機 2 緯糸 3 緯入れノズル 4 経糸 5 筬 6 織り口 7 織布 8 緯糸切断装置 9 開口 10 緯糸把持装置 11 把持部材 12 把持部材 13 弾性部材 14 押え部材 15 アクチュエータ 16 出力軸 17 ブラケット 18 カム 19 カムローラ 20 制御装置 21 レバー 22 連結棒 23 ピン 24 主軸モータ 25 エンコーダ 26 空気供給源 27 調圧弁 28 電磁式給気弁 29 電磁式排気弁 30 押え棒 31 固定軸 32 弾性力調整手段 33 ナット 34 把持面 35 把持面 DESCRIPTION OF SYMBOLS 1 Fragment loom 2 Weft 3 Weft insertion nozzle 4 Warp 5 Reed 6 Weaving mouth 7 Woven cloth 8 Weft cutting device 9 Opening 10 Weft holding device 11 Holding member 12 Holding member 13 Elastic member 14 Holding member 15 Actuator 16 Output shaft 17 Bracket 18 Cam Reference Signs List 19 cam roller 20 control device 21 lever 22 connecting rod 23 pin 24 main shaft motor 25 encoder 26 air supply source 27 pressure regulating valve 28 electromagnetic air supply valve 29 electromagnetic exhaust valve 30 presser rod 31 fixed shaft 32 elastic force adjusting means 33 nut 34 grip Surface 35 Gripping surface

Claims (7)

【特許請求の範囲】[Claims] 【請求項1】 断片織機の給糸側で、筬打ち後の緯糸を
切断する緯糸切断装置と織布の給糸側の織り端との間
に、経糸方向で緯糸の移動軌跡上に沿って緯糸把持用の
一対の把持部材を設置し、この把持部材に把持力加減用
のアクチュエータを連結し、このアクチュエータに制御
装置を接続してなり、 製織中に製織条件に応じて制御装置によりアクチュエー
タを駆動し、一対の把持部材の間に作用する緯糸の把持
力を調整することを特徴とする緯糸把持装置。
1. A method according to claim 1, further comprising, on a yarn feeding side of the fragmentary loom, between a weft cutting device that cuts the weft after beating and a weaving end on a yarn feeding side of the woven fabric, along a movement locus of the weft in the warp direction. A pair of gripping members for gripping the weft are installed, an actuator for increasing / decreasing gripping force is connected to the gripping member, and a controller is connected to the actuator.The actuator is controlled by the controller according to the weaving conditions during weaving. A weft gripping device, which is driven to adjust a gripping force of a weft acting between a pair of gripping members.
【請求項2】 断片織機の給糸側で、筬打ち後の緯糸を
切断する緯糸切断装置と織布の給糸側の織り端との間
に、経糸方向で緯糸の移動軌跡上に沿って緯糸把持用の
一対の把持部材を設置し、この把持部材に弾性部材を介
して把持力加減用のアクチュエータを連結し、このアク
チュエータに制御装置を接続してなり、 製織中に製織条件に応じて制御装置によりアクチュエー
タを駆動し、弾性部材の弾性力を増減させて、一対の把
持部材の間に作用する緯糸の把持力を調整することを特
徴とする緯糸把持装置。
2. A warp direction between a weft cutting device for cutting a weft after beating and a weaving end on a feed side of a woven fabric on a yarn feeding side of a fragmentary loom along a movement locus of a weft yarn. A pair of gripping members for gripping the weft are installed, an actuator for adjusting the gripping force is connected to the gripping member via an elastic member, and a control device is connected to the actuator. A weft gripping device wherein a controller drives an actuator to increase or decrease the elastic force of an elastic member to adjust the weft gripping force acting between a pair of gripping members.
【請求項3】 布移動式パイル織機の給糸側で、筬打ち
後の緯糸を切断する緯糸切断装置と織布の給糸側の織り
端との間に、経糸方向で緯糸の移動軌跡上に沿って緯糸
把持用の一対の把持部材を設置し、把持部材に弾性部材
を圧接してなる緯糸把持装置において、 緯糸把持装置を布移動にともなってルーズピック時の位
置とファーストピック時の位置とに移動可能に設置し、
緯糸把持装置に緯糸把持装置の移動に伴って弾性部材の
弾性力を切り換える弾性力調整手段を設けることを特徴
とする緯糸把持装置。
3. A moving locus of a weft in a warp direction between a weft cutting device for cutting a weft after beating and a weaving end on a feeding side of a woven fabric on a yarn feeding side of a cloth moving pile loom. A pair of gripping members for weft gripping are installed along with the gripping member, and the elastic member is pressed against the gripping member, and the position of the loose pick and the position of the first pick with the weft gripping device as the cloth moves. And movably installed,
A weft holding device, wherein the weft holding device is provided with an elastic force adjusting means for switching an elastic force of an elastic member in accordance with movement of the weft holding device.
【請求項4】 布移動式または筬打ち点移動式パイル織
機の給糸側で、筬打ち後の緯糸を切断する緯糸切断装置
と織布の給糸側の織り端との間に、経糸方向で緯糸の移
動軌跡上に沿って緯糸把持用の一対の把持部材を設置
し、この把持部材に弾性部材を圧接させてなる緯糸把持
装置において、 把持部材のルーズピック位置での緯糸の把持部分とファ
ーストピック位置での緯糸の把持部分とにかかる把持力
を各々異なる大きさに設定してなることを特徴とする緯
糸把持装置。
4. A warp direction between a weft cutting device for cutting a weft after beating and a weaving end on a yarn feeding side of a woven fabric on a yarn feeding side of a cloth loom type or a beating point moving type pile loom. A pair of gripping members for gripping the weft are installed along the locus of movement of the weft, and an elastic member is pressed against the gripping member.In the weft gripping device, the gripping portion of the weft at the loose pick position of the gripping member is A weft gripping device, wherein gripping forces applied to a gripping portion of a weft at a first pick position are set to different magnitudes.
【請求項5】 把持部材の緯糸把持部分の形状および摩
擦力のうち少なくともいずれかをルーズピック位置とフ
ァーストピック位置とで相違させることを特徴とする請
求項4記載の緯糸把持装置。
5. The weft holding device according to claim 4, wherein at least one of the shape and frictional force of the weft holding portion of the holding member is different between the loose pick position and the first pick position.
【請求項6】 ルーズピック位置での把持部材の緯糸把
持部、ファーストピック位置での把持部材の緯糸把持部
ごとに弾性力の異なる弾性部材を設けることを特徴とす
る請求項4記載の緯糸把持装置。
6. The weft holding device according to claim 4, wherein an elastic member having a different elastic force is provided for each of the weft holding portion of the holding member at the loose pick position and the weft holding portion of the holding member at the first pick position. apparatus.
【請求項7】 ファーストピック位置での把持力を製織
条件に応じて、アクチュエータにて制御することを特徴
とする請求項3、4、5または6記載の緯糸把持装置。
7. The weft gripping device according to claim 3, wherein the gripping force at the first pick position is controlled by an actuator according to weaving conditions.
JP07844998A 1998-03-11 1998-03-11 Weft gripping device Expired - Lifetime JP3985880B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07844998A JP3985880B2 (en) 1998-03-11 1998-03-11 Weft gripping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07844998A JP3985880B2 (en) 1998-03-11 1998-03-11 Weft gripping device

Publications (2)

Publication Number Publication Date
JPH11256452A true JPH11256452A (en) 1999-09-21
JP3985880B2 JP3985880B2 (en) 2007-10-03

Family

ID=13662356

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1786963A1 (en) 2004-09-08 2007-05-23 Picanol N.V., Naamloze Vennootschap Method for gripping weft threads gripping device and loom with at least one gripper device for weft threads
JP2015040348A (en) * 2013-08-20 2015-03-02 東レ株式会社 Woven fabric base material, method for weaving the same, and weaving machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1786963A1 (en) 2004-09-08 2007-05-23 Picanol N.V., Naamloze Vennootschap Method for gripping weft threads gripping device and loom with at least one gripper device for weft threads
EP1786963B1 (en) * 2004-09-08 2013-01-16 Picanol Method for gripping weft threads gripping device and loom with at least one gripper device for weft threads
JP2015040348A (en) * 2013-08-20 2015-03-02 東レ株式会社 Woven fabric base material, method for weaving the same, and weaving machine

Also Published As

Publication number Publication date
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