JPH0640605Y2 - Weft cutting device for loom - Google Patents
Weft cutting device for loomInfo
- Publication number
- JPH0640605Y2 JPH0640605Y2 JP1987185867U JP18586787U JPH0640605Y2 JP H0640605 Y2 JPH0640605 Y2 JP H0640605Y2 JP 1987185867 U JP1987185867 U JP 1987185867U JP 18586787 U JP18586787 U JP 18586787U JP H0640605 Y2 JPH0640605 Y2 JP H0640605Y2
- Authority
- JP
- Japan
- Prior art keywords
- weft
- gripping
- blade
- movable
- fixed
- 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.)
- Expired - Lifetime
Links
Landscapes
- Looms (AREA)
Description
【考案の詳細な説明】 考案の目的 （産業上の利用分野） 本考案は織機における緯糸切断装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a weft cutting device in a loom.
（従来の技術） 緯入れ用メインノズルから射出緯入れされた緯糸を筬打
ち毎に織前側から切断分離する切断装置として特開昭58
-220852号公報に開示されるものがある。この従来装置
では固定刃の側方に固定把持部材が並設されていると共
に、可動刃の側方には可動把持部材が並設されており、
緯糸切断直前あるいは切断時から次回の緯入れまで緯入
れ用メインノズル側の切断端が把持される。これにより
緯入れ用メインノズルから織布に連なる緯糸に対して適
度の張力が付与されて織布耳部の形成が良好に行われる
と共に、次回に緯入れされる緯糸の先端部が緯入れに適
した姿勢で待機可能である。(Prior Art) Japanese Unexamined Patent Application Publication No. Sho 58-58
-220852 publication. In this conventional device, the fixed gripping members are arranged side by side on the fixed blade, and the movable gripping members are arranged side by side on the movable blade.
The cutting end on the side of the main nozzle for weft insertion is grasped immediately before weft cutting or from the time of cutting to the next weft insertion. As a result, proper tension is applied to the weft thread that is connected to the woven fabric from the weft insertion main nozzle, and the woven fabric selvage is well formed. It is possible to stand by in a suitable posture.
（考案が解決しようとする問題点） しかしながら、可動刃と可動把持部材とは別々の駆動機
構に作動連結されており、それ故に緯入れ用メインノズ
ルと織布との間というかなり狭い空間内に前記両駆動機
構を配設しなければならず、設置スペースの制約に起因
する機構の複雑化が避けられない。しかも、各駆動機構
を調整して可動刃と可動把持部材との作動タイミングを
設定しなければならず、この正確なタイミング設定には
非常な熟練を要する。(Problems to be solved by the invention) However, the movable blade and the movable gripping member are operatively connected to different driving mechanisms, and therefore, in a considerably narrow space between the weft inserting main nozzle and the woven cloth. Both drive mechanisms must be provided, and the mechanism is inevitably complicated due to the limitation of the installation space. Moreover, each drive mechanism must be adjusted to set the operation timing of the movable blade and the movable gripping member, and very accurate skill is required to set the accurate timing.
考案の構成 （問題点を解決するための手段） そこで本考案では、緯入れ用メインノズルから射出緯入
れされる緯糸を筬打ち毎に、筬打ち後作動して緯糸切断
後直ちに復帰し緯入れ用メインノズルから切断分離する
緯糸切断装置において、固定刃の緯入れ用メインノズル
側の側面に把持面を弾性材で形成した固定把持部材を止
着すると共に、可動刃の緯入れ用メインノズル側の側面
に線状ばねを折曲して形成した可動把持部材を止着し、
前記可動把持部材の把持面を前記可動刃よりも固定把持
部材の把持面側に突出させたようにした。Configuration of the Invention (Means for Solving Problems) Therefore, in the present invention, the weft yarn injected from the main weft-inserting nozzle is repulsed every time it is beaten, and after the beating, the weft yarn is actuated to immediately return after cutting the weft yarn. In a weft cutting device that cuts and separates from a main nozzle for a main blade, a fixed grip member having a gripping surface made of an elastic material is fixed to a side surface of the fixed blade on the side of the main nozzle for a weft insertion, and a main blade side of the movable blade for inserting the weft Secure the movable gripping member formed by bending the linear spring on the side of the
The gripping surface of the movable gripping member is made to project toward the gripping surface side of the fixed gripping member with respect to the movable blade.
（作用） 即ち、緯入れされた緯糸は可動把持部材と固定把持部材
とにより緯糸切断前あるいは緯糸切断時に把持され、両
把持部材と織布との間という切断作用領域内の緯糸には
経糸張力とのバランスのとれた適度の張力が付与され
る。この把持状態のもとに緯糸が可動刃と固定刃とによ
り切断されるため、織布耳部の形成が良好に行われ、し
かも次回緯入れの緯糸先端部が緯入れに適した姿勢で待
機する。このような良好な耳部形成及び緯入れ待機を可
能とする可動把持部材は可動刃と一体に駆動されるた
め、可動刃の切断タイミングと可動把持部材の把持タイ
ミングとのマッチングを駆動機構の調整に求める必要が
なく、緯糸の把持及び切断の連係は良好に行われる。(Operation) That is, the weft inserted is held by the movable gripping member and the fixed gripping member before or during weft cutting, and the warp tension is applied to the weft in the cutting action region between the both gripping members and the woven cloth. An appropriate tension that is well balanced with is given. Since the weft thread is cut by the movable blade and the fixed blade under this gripping state, the woven selvage portion is well formed, and the tip of the weft thread of the next weft insertion is on standby in a posture suitable for weft insertion. To do. Since the movable gripping member that enables such good ear formation and weft insertion standby is driven integrally with the movable blade, the drive mechanism is adjusted to match the cutting timing of the movable blade with the gripping timing of the movable gripping member. Therefore, the weft thread is properly held and cut.
（実施例） 以下、本考案を具体化した一実施例を第１〜３図に基づ
いて説明する。(Embodiment) An embodiment embodying the present invention will be described below with reference to FIGS.
スレイ１上の緯入れ用メインノズル２はスレイ１上に立
設された変形筬３前面の緯入れ通路3aを指向しており、
緯入れ用メインノズル２から射出された緯糸Ｙはスレイ
１に所定間隔をおいて装着された複数の緯入れ用補助ノ
ズル４により緯入れ通路3a内をリレー搬送される。The weft insertion main nozzle 2 on the sley 1 is directed toward the weft insertion passage 3a in front of the deformed reed 3 standing on the sley 1,
The weft yarn Y ejected from the weft-insertion main nozzle 2 is relayed in the weft-insertion passage 3a by a plurality of weft-insertion auxiliary nozzles 4 mounted on the sley 1 at predetermined intervals.
織布Ｗの織前W1の側方には支持ブラケット５が織機機枠
側に固設されており、支持ブラケット５中央部の側面
（緯入れ用メインノズル２側）には支持筒６が立設され
ている。支持ブラケット５の織布Ｗ側の側面には固定刃
７が固設されており、支持ブラケット５の上端縁にはウ
レタンゴム製の固定把持部材８が止着されている。支持
ブラケット５の先端側上端縁には緯糸ガイド面5aが形成
されており、この緯糸ガイド面5aの基端側は固定刃７の
刃線7aに滑らかに接続している。A supporting bracket 5 is fixed to the side of the cloth fell W1 of the woven cloth W on the side of the loom frame, and a supporting cylinder 6 stands on the side surface of the central part of the supporting bracket 5 (on the side of the main nozzle 2 for weft insertion). It is set up. A fixed blade 7 is fixedly provided on the side surface of the support bracket 5 on the side of the woven fabric W, and a fixed gripping member 8 made of urethane rubber is fixed to the upper edge of the support bracket 5. A weft guide surface 5a is formed at the upper end edge of the support bracket 5 on the front end side, and the base end side of the weft guide surface 5a is smoothly connected to the blade line 7a of the fixed blade 7.
支持筒６内には支軸９が回動可能に貫通支持されてお
り、支軸９の織布Ｗ側の端部には可動刃10が固着されて
いる。支軸９の他端部にはばね受け11が取付けられてい
ると共に、このばね受け11と支持ブラケット５との間に
は押圧ばね12が介在されており、押圧ばね12のばね作用
により可動刃10の刃線10aが固定刃７の刃線7aに適宜の
力で押接されている。可動刃10はリンク13を介して図示
しないカム機構に作動連結されており、機台回転に同期
して作動されるカム機構により可動刃10が緯入れ毎に切
断動作を行なう。A support shaft 9 is rotatably supported through the support cylinder 6, and a movable blade 10 is fixed to an end of the support shaft 9 on the woven fabric W side. A spring bearing 11 is attached to the other end of the support shaft 9, and a pressing spring 12 is interposed between the spring bearing 11 and the support bracket 5. The spring action of the pressing spring 12 causes the movable blade to move. The blade line 10a of 10 is pressed against the blade line 7a of the fixed blade 7 with an appropriate force. The movable blade 10 is operatively connected to a cam mechanism (not shown) via a link 13, and the movable blade 10 performs a cutting operation every weft insertion by a cam mechanism which is operated in synchronization with the rotation of the machine base.
可動刃10の緯入れ用メインノズル２側の側面には線状ば
ねを折曲して形成した可動把持部材14が一対のねじ15に
より止着されており、その先端側が可動刃10の刃線10a
に沿って先端側から基端側にかけて折曲反転されてい
る。そして、第２図（ａ），（ｂ）に示すように可動刃
10が開放状態では可動把持部材14の把持面14aが前記可
動刃10よりも固定把持部材８の把持面8a側に突出するよ
うに設定されており、固定把持部材８の把持面8aは両刃
線10a,7a間に刃線7a側から僅かに突出するように設定さ
れている。即ち、両把持面14a,8aの間隔は両刃線10a,7a
よりも小さく設定されている。この設定により第３図
（ａ），（ｂ）に示すように両把持部材14,8の把持面14
a,8aが可動刃10と固定刃７との切断作用開始前に接合す
る。A movable gripping member 14 formed by bending a linear spring is fixed to the side surface of the movable blade 10 on the weft inserting main nozzle 2 side by a pair of screws 15, and the tip side thereof is the blade line of the movable blade 10. 10a
Is bent and inverted from the front end side to the base end side. Then, as shown in FIGS. 2 (a) and 2 (b), the movable blade
When the movable gripping member 14 is open, the gripping surface 14a of the movable gripping member 14 is set to project more toward the gripping surface 8a side of the fixed gripping member 8 than the movable blade 10, and the gripping surface 8a of the fixed gripping member 8 has a double-edged line. It is set so as to slightly project from the blade line 7a side between 10a and 7a. That is, the distance between the two gripping surfaces 14a and 8a is equal to that of the two blade lines 10a and 7a.
Is set smaller than. With this setting, as shown in FIGS. 3 (a) and 3 (b), the gripping surfaces 14 of both gripping members 14 and 8 are
The a and 8a join the movable blade 10 and the fixed blade 7 before the cutting action starts.
さて、緯入れ通路3a内へ射出緯入れされた緯糸Ｙは筬打
ち動作と共に緯糸ガイド面5aに沿って固定刃７と可動刃
10との間に導入され、上下経糸Ｔの把持作用及び両把持
部材14,8の把持作用を受ける。線状ばね製の可動把持部
材14はウレタンゴム製の固定把持部材８の把持面8aを若
干押し込んで接合し、緯糸Ｙは両把持部材14,8間に確実
に把持される。これにより緯糸Ｙには経糸Ｔの張力との
バランスのとれた適度の張力が付与される。この状態で
筬打ちが行われ、次いで緯糸Ｙは可動刃10と固定刃７と
による切断作用を受ける。従って、緯糸Ｙは適度の張力
を維持したまま上下経糸Ｔ間に織りこまれ、良好な耳部
形成が行われる。しかも、織布Ｗから切断分離された緯
入れ用メインノズル２側の緯糸の先端部が緯糸切断後ま
で両把持部材14,8間に把持されるため、切断に伴う衝撃
が緯入れ用メインノズル側の緯糸に波及することはな
く、緯入れ用メインノズル２側の緯糸の先端部は次回の
緯入れに適した姿勢で待機する。Now, the weft Y, which has been injected into the weft insertion passage 3a, moves along the weft guide surface 5a with the fixed blade 7 and the movable blade along with the beating operation.
The upper and lower warps T are gripped by the upper and lower warps T and the gripping action of both gripping members 14, 8. The movable gripping member 14 made of a linear spring is slightly pushed into the gripping surface 8a of the urethane rubber fixed gripping member 8 to join it, and the weft Y is securely gripped between the gripping members 14, 8. As a result, the weft Y is given an appropriate tension that is in balance with the tension of the warp T. Repulsion is performed in this state, and then the weft Y is subjected to the cutting action by the movable blade 10 and the fixed blade 7. Therefore, the weft Y is woven between the upper and lower warps T while maintaining an appropriate tension, and a good selvage is formed. Moreover, since the tip of the weft thread on the side of the weft insertion main nozzle 2 that has been cut and separated from the woven fabric W is held between the two holding members 14 and 8 until after the weft thread is cut, the impact due to the cutting is applied to the weft insertion main nozzle. Side weft yarn does not spill over, and the front end portion of the weft yarn on the side of the weft insertion main nozzle 2 stands by in a posture suitable for the next weft insertion.
このような良好な耳部形成及び緯入れ待機姿勢をもたら
す可動把持部材14は可動刃10に一体的に止着されてお
り、それ故に可動刃10の刃線10aと可動把持部材14の把
持面14aとの位置関係を適宜設定すれば両把持面14a,8a
の把持作用と両刃10,7の切断作用との連係が円滑に推移
する。そして、この両作用の連係設定は可動把持部材14
の折曲形状の調整で事足り、切断及び把持のための駆動
機構を別々に設置していた従来の駆動機構のマッチング
調整に比して遥かに容易かつ正確である。The movable gripping member 14 that brings about such favorable ear formation and weft insertion standby posture is integrally fixed to the movable blade 10, and therefore the blade line 10a of the movable blade 10 and the gripping surface of the movable gripping member 14 are fixed. If the positional relationship with 14a is set appropriately, both gripping surfaces 14a, 8a
The cooperation between the gripping action of the blade and the cutting action of the double-edged blades 10, 7 changes smoothly. Then, the coordination setting of these two actions is performed by the movable gripping member 14
The adjustment of the bent shape is sufficient, and it is much easier and more accurate than the matching adjustment of the conventional drive mechanism in which the drive mechanisms for cutting and grasping are separately installed.
本考案は勿論前記実施例にのみ限定されるものではな
く、例えば第４図に示すように可動刃10と支持ブラケッ
ト５との間に凹条把持面16aを備えた金属製の固定把持
部材16を介在すると共に、可動把持部材14の把持面14a
を凹条把持面16a内へ緯糸切断前あるいは切断時に入り
込ませる実施例も可能であり、これにより緯糸が凹条把
持面16a内で屈曲形状に把持される。従って、前記実施
例と同様の作用効果が得られる。The present invention is not of course limited to the above-mentioned embodiment, and for example, as shown in FIG. 4, a metal fixed gripping member 16 having a groove gripping surface 16a between the movable blade 10 and the support bracket 5 is provided. And the gripping surface 14a of the movable gripping member 14
There is also an embodiment in which the weft thread is inserted into the groove gripping surface 16a before or during the cutting of the weft thread, whereby the weft thread is gripped in a curved shape in the groove gripping surface 16a. Therefore, the same effect as that of the above-mentioned embodiment can be obtained.
なお、緯糸切断時あるいはそれ依然に緯糸把持を行なう
には前記各実施例における可動把持部材14の把持面14a
と固定把持部材8,16の把持面8a,16aとの間隔を両刃線10
a,7aの間隔以下とすれば十分である。Incidentally, in order to carry out weft gripping when the weft is cut or still, the gripping surface 14a of the movable gripping member 14 in each of the above embodiments
And the holding surfaces 8a, 16a of the fixed holding members 8, 16 with the double-edged line 10
It is sufficient if the distance is a or less than 7a.
考案の効果 本考案は以上の構成を採用したことにより、緯糸把持装
の構成を簡単かつ特に可動側に軽量化し、可動刃の駆動
力に負荷をかけることがないため、緯入れ毎に緯糸把
持、切断作用の応答性が維持でき、織機の高速回転にも
十分対応できる。また、可動刃の回動時における緯糸把
持作用も固定把持部材の弾性面と、線状ばね自体の撓み
により適度の加圧力で確実に把持することができる。さ
らに、緯糸切断に先立つ緯糸把持タイミング、即ち可動
刃からの突出状態は、線状ばねの折曲状態の調整のみで
自由にかつ簡単に設定することができ、適切な緯糸把持
作用を行わせることができるという効果を奏する。Effect of the Invention By adopting the above-described configuration, the present invention makes the construction of the weft gripping device simple and particularly lightweight on the movable side, and does not impose a load on the driving force of the movable blade, so that weft gripping is performed for each weft insertion. The responsiveness of the cutting action can be maintained and the loom can be rotated at high speed. Further, the weft thread holding action when the movable blade is rotated can be surely held with an appropriate pressing force by the elastic surface of the fixed holding member and the bending of the linear spring itself. Furthermore, the weft grip timing prior to weft cutting, that is, the protruding state from the movable blade, can be freely and easily set only by adjusting the bent state of the linear spring, and an appropriate weft grip action is performed. There is an effect that can be.
第１〜３図は本考案を具体化した一実施例を示し、第１
図は斜視図、第２図（ａ）は要部側面図、第２図（ｂ）
は第２図（ａ）のＡ−Ａ線拡大断面図、第３図（ａ）は
緯糸把持開始状態を示す要部側面図、第３図（ｂ）は第
３図（ａ）のＢ−Ｂ線拡大断面図、第４図は別例を示す
要部斜視図である。 緯入れ用メインノズル２、固定刃７、刃線7a、固定把持
部材8,16、把持面8a,16a、可動刃10、刃線10a、緯糸
Ｙ。1 to 3 show an embodiment embodying the present invention.
The figure is a perspective view, FIG. 2 (a) is a side view of a main part, and FIG. 2 (b).
2A is an enlarged cross-sectional view taken along the line AA of FIG. 2A, FIG. 3A is a side view of an essential part showing a starting state of weft gripping, and FIG. 3B is B- of FIG. 3A. FIG. 4 is an enlarged sectional view taken along line B, and FIG. 4 is a perspective view of an essential part showing another example. Weft insertion main nozzle 2, fixed blade 7, blade line 7a, fixed gripping members 8, 16, gripping surfaces 8a, 16a, movable blade 10, blade line 10a, weft Y.
Claims (1)
る緯糸を筬打ち毎に、筬打ち後作動し緯糸切断後直ちに
復帰して緯入れ用メインノズルから切断分離する緯糸切
断装置において、固定刃の緯入れ用メインノズル側の側
面に把持面を弾性材で形成した固定把持部材を止着する
と共に、可動刃の緯入れ用メインノズル側の側面に線状
ばねを折曲して形成した可動把持部材を止着し、前記可
動把持部材の把持面を前記可動刃よりも固定把持部材の
把持面側に突出させた織機における緯糸切断装置。1. A weft cutting device for injecting a weft inserted from a main nozzle for weft insertion at each beating, fixing it in a weft cutting device that operates after beating, returns immediately after cutting the weft, and cuts and separates from the main nozzle for weft insertion. A fixed gripping member having a gripping surface made of an elastic material is fixed to the side surface of the blade on the side of the main nozzle for weft insertion, and a linear spring is formed by bending on the side surface of the movable blade on the side of the main nozzle for weft insertion. A weft cutting device for a loom, in which a movable gripping member is fixedly attached, and a gripping surface of the movable gripping member is projected to a gripping surface side of a fixed gripping member rather than the movable blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987185867U JPH0640605Y2 (en) | 1987-12-04 | 1987-12-04 | Weft cutting device for loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987185867U JPH0640605Y2 (en) | 1987-12-04 | 1987-12-04 | Weft cutting device for loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0189983U JPH0189983U (en) | 1989-06-13 |
| JPH0640605Y2 true JPH0640605Y2 (en) | 1994-10-26 |
Family
ID=31477126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987185867U Expired - Lifetime JPH0640605Y2 (en) | 1987-12-04 | 1987-12-04 | Weft cutting device for loom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640605Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004156189A (en) * | 2002-11-08 | 2004-06-03 | Mitsubishi Rayon Co Ltd | Method for producing reinforcing fiber fabric, and reinforcing fiber fabric |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58220852A (en) * | 1982-06-17 | 1983-12-22 | 敷島紡績株式会社 | Wefting of fluid jet type loom |
-
1987
- 1987-12-04 JP JP1987185867U patent/JPH0640605Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0189983U (en) | 1989-06-13 |
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