JP4426719B2 - Jacquard machine needle selector - Google Patents

Jacquard machine needle selector Download PDF

Info

Publication number
JP4426719B2
JP4426719B2 JP2000380626A JP2000380626A JP4426719B2 JP 4426719 B2 JP4426719 B2 JP 4426719B2 JP 2000380626 A JP2000380626 A JP 2000380626A JP 2000380626 A JP2000380626 A JP 2000380626A JP 4426719 B2 JP4426719 B2 JP 4426719B2
Authority
JP
Japan
Prior art keywords
needle
vertical
vertical needle
needles
knife
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
Application number
JP2000380626A
Other languages
Japanese (ja)
Other versions
JP2001329445A (en
Inventor
国弘 武村
Original Assignee
有限会社タケムラテクノワークス
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 有限会社タケムラテクノワークス filed Critical 有限会社タケムラテクノワークス
Priority to JP2000380626A priority Critical patent/JP4426719B2/en
Publication of JP2001329445A publication Critical patent/JP2001329445A/en
Priority to PCT/JP2001/010963 priority patent/WO2002048439A1/en
Priority to AU2002222640A priority patent/AU2002222640A1/en
Priority to EP01270644A priority patent/EP1357210A4/en
Priority to CN 01820438 priority patent/CN1289728C/en
Application granted granted Critical
Publication of JP4426719B2 publication Critical patent/JP4426719B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Knitting Machines (AREA)
  • Sewing Machines And Sewing (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、織機の縦糸開口装置であるジャカード機の選針装置に関する。
【0002】
【従来の技術】
従来より、ジャカード機の縦糸の開口を行うための縦針の選針装置は、電歪現象にて湾曲する帯板状の圧電素子体や電磁ソレノイドをアクチュエータとして、任意の縦針選針子を所定角度に揺動させ、該縦針選針子を縦針と係合させることにより縦針の選針を行う構成となっており、例えば実開平4−118483号公報所載の考案が公知である。
【0003】
かかる公報所載のジャカード機の選針装置は、図13に示す如く、昇降駆動されるスライドガイド100と、該スライドガイド100に挿通され、鉤部102がスライドガイド100に係止されることにより、該スライドガイド100の上昇に伴って上昇可能な複数の縦針101,…と、スライドガイド100の上方に配置され、該スライドガイド100と逆位相で昇降駆動されるハウジング104とを備えている。
【0004】
そして、前記ハウジング104内には、複数の縦針101,…に対応して複数の永久磁石付フックレバー(縦針選針子)106,…が揺動自在に装備され、各フックレバー106の永久磁石107に対向したハウジング104内の所定位置には、磁性コアを内挿した電磁ソレノイド109が配置され、さらに、各フックレバー106の下端部には、縦針101の上端部に形成された鉤部103と係合可能なフック部108が形成されている。
【0005】
前記フックレバー106は、スライドガイド100の上昇及びハウジング104の下降による両者の最終接近位置の近傍で、永久磁石107が電磁ソレノイド109により反発駆動された時、フック部108と縦針101の鉤部103とが係合する角度位置となる一方、永久磁石107が対応する電磁ソレノイド109に引付けられた時、係合を解除する角度位置となる。
【0006】
従って、複数のフックレバー106,…の角度位置を各フックレバー106ごとに制御して所望の縦針101を選針することにより、縦針101の下端に通糸110を介して連結された縦糸(図示しない)を所望する態様にて開口させることができる。
【0007】
【発明が解決しようとする課題】
しかしながら、上記ジャカード機の選針装置は、複数のフックレバー106,…、複数の電磁ソレノイド109,…、該複数の電磁ソレノイド109,…を制御するための電気回路基板(図示しない)、及び電気ケーブル(図示しない)を備えた比較的重量物であるハウジング104を、選針した縦針101,…と共に昇降駆動させる構成であるため、ハウジング104の昇降動作に伴って大きな振動が発生し、耐久性、選針の信頼性(開口動作の確実性)の面で少なからず問題が生じていた。一方、この振動問題を解決すべく、ハウジング104の昇降速度を下げることも考えられるが、これでは生産性の向上が図れない。
【0008】
また、電磁ソレノイド109のアクチュエータでは処々の問題があるとして、本願出願人が本願に先立ってなした特開平11−81104号公報所載のジャカード機の選針装置は、図14に示す如く、電圧の印加により湾曲する帯状の圧電素子体121をアクチュエータとして用い、圧電素子体121の一端部122を縦針選針子123に係止させることにより、圧電素子体121の湾曲を以て縦針選針子123を選針位置Bと非選針位置Aとに揺動させる構成を採用しているが、この構成によれば、縦針124に大きな荷重を加わると、縦針選針子123に直接連結された圧電素子体121が損傷を受ける可能性がある。
【0009】
また、上記何れの公報所載のジャカード機の選針装置においても、メンテナンスや電磁ソレノイド109(圧電素子体121)の寿命のために、ジャカード機本体(図示しない)から取り外し可能となっているが、ジャカード機の稼働中に選針装置に不具合が生じた場合の該選針装置の取り外し作業においては、まず、作業者が選針された複数の縦針101,…(124,…)をフックレバー106,…(縦針選針子123,…)から一本一本手作業で取り外さなければならず、この作業が極めて煩雑であると共に、長大な時間を要し、ジャカード機の稼働率を低下させる原因となっていた。
【0010】
そこで、本発明は上記の如き問題点に鑑みてなされたもので、耐久性、選針の信頼性(開口動作の確実性)、耐荷重性に優れたジャカード機の選針装置を提供することを第一の課題とし、併せて、交換作業を容易に行うことができるジャカード機の選針装置を提供することを第二の課題とする。
【0011】
【課題を解決するための手段】
上記課題を解決するために、本発明に係るジャカード機の選針装置は、複数の縦針20,…,50,…を係止して往復動する搬送部材13,43と、該搬送部材13,43の進行方向に配置され、それぞれ縦針20,50の進路Pに進出する位置Aと縦針20,50の進路Pから退避する位置Bとに揺動可能な複数の縦針選針子5,…,35,…とを備えたジャカード機の選針装置において、前記縦針20,50の少なくとも先端側20a,50aが、該縦針20,50の進路Pに進出した縦針選針子5,35との接触によって屈曲可能に形成され、しかも、該縦針20,50と搬送部材13,43とを相対変位させるべく、該縦針20,50の屈曲した部位23,53を係止可能な係止部材17,47が設けられ、前記縦針20,50又は前記縦針選針子5,35の何れか一方に、縦針20,50の進路Pに対して傾斜する傾斜面6a,36aが形成され、他方に、該傾斜面6a,36aを摺動可能な突起部24,57が形成されてなり、傾斜面6a,36aを突起部24,57が摺動することにより、縦針20,50が屈曲するよう構成されてなることを特徴とする。
【0012】
上記構成からなるジャカード機の選針装置によれば、縦針選針子5,35との接触によって屈曲した縦針20,50の少なくとも先端側20a,50aが係止部材17,47に係止された状態で、搬送部材13,43が縦針選針子5,35から離間すると、縦針20,50と搬送部材13,43との相対変位が行なわれる。一方、縦針選針子5,35と接触しないために屈曲しない縦針20,50は、係止部材17,47に係止されることがないため、搬送部材13,43と共に縦針選針子5,35から離間し、縦針20,50と搬送部材13,43との相対変位が行なわれない。この何れかの操作をそれぞれ縦針20,50に対して行なうことにより、縦糸の開口操作を行なうことができる。
【0013】
また、本発明に係るジャカード機の選針装置は、複数の縦針20,…,50,…を係止して往復動する搬送部材13,43と、該搬送部材13,43の進行方向に配置され、それぞれ縦針20,50の進路Pに進出する位置Aと縦針20,50の進路Pから退避する位置Bとに揺動可能な複数の縦針選針子5,…,35,…とを備えたジャカード機の選針装置において、前記縦針20,50の少なくとも先端側20a,50aが、該縦針20,50の進路Pに進出した縦針選針子5,35との接触によって屈曲可能に形成され、しかも、該縦針20,50と搬送部材13,43とを相対変位させるべく、該縦針20,50の屈曲した部位23,53を係止可能な係止部材17,47が設けられてなり、一の縦針選針子35に対し、前記搬送部材43、前記係止部材47及び前記縦針50がそれぞれ一対ずつ設けられ、しかも、一対の搬送部材43,43が、逆位相で往復動するよう構成され、前記縦針選針子35の先端部に、縦針50の進路Pに対して傾斜する一対の傾斜面36a,36aが形成される一方、それぞれの縦針50に、傾斜面36aを摺動可能な突起部57が形成されてなり、一方の突起部57が一方の傾斜面36aを、そして、他方の突起部57が他方の傾斜面36aを摺動することにより、それぞれの縦針50が屈曲するよう構成されてなることを特徴とする。これにより、複動式の選針装置を得ることができる。
【0014】
上記構成からなるジャカード機の選針装置によれば、一対の搬送部材43,43及びこれに伴って一対の縦針50,50が交互に往復動するから、一の縦針選針子3は、何れかの縦針50が接近するごとに選針若しくは非選針を行うこととなる。一対の搬送部材43,43を逆位相で動かすことにより、二本の縦針50,50の両方が同時に接近することはないため、選針若しくは非選針操作が相互に干渉することはなく、一の縦針選針子3を以て一対の縦針50,50の選針若しくは非選針操作をそれぞれ独立に実施することができる。
【0015】
【発明の実施の形態】
<第一実施形態>
以下、本発明の第一実施形態に係るジャカード機の選針装置を図1乃至図4に基づき説明する。
【0016】
20は、縦糸27に連結された通糸28が結び付けられて縦糸27の開口動作を行う縦針である。該縦針20は、上下方向に延びる帯板状の本体片21と、該本体片21の上端側20aと下端側20bを除き、該本体片21の長手方向に沿って付設された補強片22とで構成されている。該補強片22は、本体片21の中心線に沿って該本体片21の板面と直交するように付設された帯板状のもので、図4(ロ)に示す如く、断面視略T字状をなしている。
【0017】
そして、前記本体片21及び補強片22は、樹脂成形で一体的に形成されたもので、材質はナイロン系プラスチック成形品からなっている。従って、本体片21のうち、補強片22が形成された箇所を除く部位、即ち、縦針20の上端側20a(先端側)及び下端側20bは、弾性(可撓性)を備えて屈曲(あるいは湾曲)可能となっている。尚、弾性を備えたもの、例えば針金、平バネ等のバネ性金属であれば、縦針20の材質として採用可能である。
【0018】
また、前記縦針20の上端側20aの一面(表面)には、ナイフ17に係止可能とすべく、鉤部23が形成され、一方、縦針20の上端側20aの他面(裏面)には、縦針選針子5と係合可能とすべく、突起部24が形成されている。前記鉤部23は、縦針20の最上端にフック状に突設されたものであり、前記突起部24は、鉤部23よりも低い位置(縦針20の上端側20aの中間位置)に半円弧状に突設されたものである。
【0019】
さらに、前記縦針20の下端側20bには、通糸28を引っ掛けるための鉤部25が形成されている。該鉤部25は、縦針20の最下端を棒状に細めて略U字状に屈曲したものであり、ここに通糸28を結び付けるようにしている。
【0020】
また、前記縦針20の途中位置には、本体片21の幅を狭めることにより、底板13に係止可能とすべく、係止部(段差部)26が形成されている。該係止部26は、上端側20aの幅を下端側20bの幅よりも細くして形成されたものであり、底板13から下方に抜け落ちるのを防止する目的を持つ。
【0021】
1は、平板状の基板からなるハウジングであり、該ハウジング1は、ジャカード機本体に固定装着されている。そして、ハウジング1の実装面1aに複数突出して並設された軸支部2,…に、縦針選針子5の一部に穿設された孔を嵌合させることにより、縦針選針子5が軸支部2を中心として揺動自在に複数配置される。
【0022】
前記縦針選針子5は、揺動中心に対する一方側である作用部5aと、他方側である揺動部5bとからなり、作用部5aは二股状に形成される一方、揺動部5bの先端には、縦針20の突起部24と係合可能とすべく、実装面1aから離間する方向に突起部6が突設されている。
【0023】
前記突起部6は、側面視略直角台形状に形成されており、該突起部6は、縦針20の長手方向Pに対して傾斜する傾斜面6aと、縦針20の長手方向Pに沿って平行な平坦面6bとを有している。本実施形態においては、傾斜面6aは、縦針選針子5の先端側ほど、縦針20に近づく(ハウジング1の実装面1aから離間する)方向に傾斜しており、平坦面6bは、傾斜面6aに連続して形成されている。
【0024】
8は、揺動操作手段としての圧電素子体であり、該圧電素子体8は帯板状に形成されると共に、一端がハウジング1の実装面1aに形成された突起体3に挟持固定され、他端が縦針選針子5の作用部5aの二股内に係入される。
【0025】
前記圧電素子体8は、例えば曲げ易く且つ曲げ疲労強度に優れた金属基材を帯板状に成形し、表面に圧電セラミック層を被覆したもので、該金属基材及び圧電セラミック層間に電圧を印加すると、圧電セラミック層が電歪現象を呈し、金属基材に曲げ応力が生じるものである。また、前記圧電素子体8は、印加する電圧の正負によって、湾曲する方向を変えることが可能である。
【0026】
従って、前記圧電素子体8は、前記実装面1aに対して帯板面を縦にして取付けられているため、実装面1aに沿って湾曲し、他端が縦針選針子5の二股内の壁面を押圧するようにして縦針選針子5を揺動させることとなるが、正の電圧が印加された場合には、圧電素子体8が左隣の圧電素子体8の方向に湾曲して、縦針選針子5を反時計回りに揺動させると共に、負の電圧が印加された場合には、圧電素子体8が右隣の圧電素子体8の方向に湾曲して、縦針選針子5を時計回りに揺動させる。
【0027】
しかも、前記ハウジング1の実装面1aには、軸支部2と同一間隔で複数の制止部4,…が並設されており、揺動する縦針選針子5が両隣の何れの制止部4,4とも当接して縦針選針子5の揺動範囲は限定されることとなる。
【0028】
以上より、圧電素子体8に正の電圧が印加された場合には、該圧電素子体8が湾曲して縦針選針子5が時計回りに揺動すると共に、該縦針選針子5が揺動方向に位置する制止部4と当接した位置、即ち、縦針20と略同一線上となる位置Aになる揺動する一方、圧電素子体8に負の電圧が印加された場合には、該圧電素子体8が湾曲して縦針選針子5が反時計回りに揺動すると共に、該縦針選針子5が揺動方向に位置する制止部4に当接した位置、即ち、縦針20の長手方向に対して傾斜した位置Bに揺動する。
【0029】
なお、同一間隔にて複数並設された縦針選針子5,…を選択的に揺動させるべく、同一間隔にて複数並設された圧電素子体8,…のうち、任意の圧電素子体8に電圧を印加するための回路基板(図示しない)がハウジング1に設けられており、該回路基板は、コード(図示しない)を介して送られる信号、動力により制御されている。
【0030】
前記底板13は、縦針20を係止して該縦針20を往復動させる第一の搬送部材としての機能を果たすもので、縦針20の長手方向に並んだ一対の平板からなる。そして、ハウジング1側に位置する上底板13a及び縦糸27側に位置する下底板13bには、それぞれ略T字状の挿通孔14a,14bが形成されている。従って、一本の縦針20は、一対の挿通孔14a,14bに挿通され、長手方向にスライド可能となる。
【0031】
しかも、前記下底板13bの挿通孔14bは、縦針20が底板13から抜け落ちて落下するのを防止すべく、縦針20の係止部26が引っ掛かる(係止される)大きさに形成されている。従って、底板13に係止された縦針20,…は、底板13の昇降(上下)動作に伴って進路P上を昇降するようになっている。
【0032】
前記ナイフ17は、縦針20の鉤部23を係止して縦針20と底板13とを相対変位させる第二の搬送部材としての機能を果たすもので、長手方向を略水平にし且つ板面をハウジング1の実装面1aと平行にして配置した帯板体からなる。該ナイフ17は、底板13と同様、上下方向に往復動するようになっており、その方向は底板13との接離方向にある。しかも、該ナイフ17は、縦針20の進路Pから所定距離離れた位置を進路Pと平行に昇降するようになっている。
【0033】
また、前記底板13と前記ナイフ17とは、逆位相で往復動するよう駆動制御されており、底板13が上昇している間は、ナイフ17が下降する一方、底板13が下降している間は、ナイフ17が上昇すると共に、底板13が上死点に位置する時は、ナイフ17が下死点に位置する一方、底板13が下死点に位置する時は、ナイフ17が上死点に位置する。
【0034】
本実施形態に係るジャカード機の選針装置は以上の構成からなり、以下に、縦針20の選針態様について説明する。
【0035】
まず、縦針20が選針される態様について図1に基づき説明する。図1(イ)は、底板13とナイフ17とが最も接近した状態を示している。この時、縦針20の突起部24は、縦針選針子5の突起部6よりも上方に位置、即ち、縦針20の突起部24と底板13との間に縦針選針子5の突起部6が介在する位置にある。そして、縦針選針子5の突起部6は、縦針20の進路Pに進出した位置A(図3参照)に変位している。
【0036】
かかる状態から底板13とナイフ17とが相対離間、即ち、底板13が下降し、ナイフ17が上昇すると、図1(ロ)に示す如く、縦針20の突起部24と縦針選針子5の突起部6とが係合し、縦針20の突起部24が縦針選針子5の突起部6の傾斜面6a及び平坦面6bを摺動するため、縦針20の先端側20aが屈曲し、縦針20の鉤部23がナイフ17の進路上に進入する。従って、縦針20の鉤部23は、上昇するナイフ17に係止されることとなる。
【0037】
しかる後、底板13とナイフ17とがさらに離間することにより、図1(ハ)に示す如く、選針された縦針20がナイフ17の移動によって上方に持ち上げられ、これに伴って、縦糸27が持ち上げられる。
【0038】
次に、縦針20が選針されない態様について図2に基づき説明する。図2(イ)は、底板13とナイフ17とが最も接近した状態を示している。この時、縦針20の突起部24は、縦針選針子5の突起部6よりも上方に位置、即ち、縦針20の突起部24と底板13との間に縦針選針子5の突起部6が介在する位置にある。そして、縦針選針子5の突起部6は、縦針20の進路Pから退避した位置B(図3参照)に変位している。
【0039】
かかる状態から底板13とナイフ17とが相対離間、即ち、底板13が下降し、ナイフ17が上昇しても、図2(ロ)に示す如く、縦針20の突起部24と縦針選針子5の突起部6とが係合することはないため、縦針20の先端側20aが屈曲することはなく、縦針20の鉤部23がナイフ17の進路上に進入することもない。従って、縦針20は、真っ直ぐな姿勢を維持し、鉤部23は、上昇するナイフ17に係止されることはなくナイフ17とすれ違うこととなる。
【0040】
しかる後、底板13とナイフ17とがさらに離間することにより、図2(ハ)に示す如く、選針されない縦針20は、底板13と共に下降し、これに伴って、縦糸27が下げられる。
【0041】
尚、図1(ハ)あるいは図2(ハ)に示す如く、底板13が下死点に到達すると共に、ナイフ17が上死点に到達した後、底板13とナイフ17とが相対接近、即ち、底板13が上昇に転じ、ナイフ17が下降に転じるが、この場合、上昇する縦針20の突起部24を縦針選針子5の突起部6よりも上方に移動させないといけないから、縦針選針子5,…は、全ての突起部6,…が縦針20,…の進路P,…から退避するように揺動させておかなければならない。
【0042】
このように、ハウジング1上に並んだ複数の縦針選針子5,…のうち、所望する縦針選針子5を選択して、突起部6を縦針20の進路Pに進出させることにより、所望する縦針20のみを選針して、複数並んだ縦糸27の開口操作を行なうことができる。
【0043】
以上、本実施形態に係るジャカード機の選針装置によれば、縦針選針子5,…を取付けたハウジング1は移動することなく固定され、該ハウジング1よりも小型且つ軽量のナイフ17を昇降させることにより縦針20を選針する構成を採用しているため、従来の如く、ハウジングの昇降動作に伴って大きな振動が発生するという問題や、この振動に起因して縦針と縦針選針子とが不測に係合解除されるという問題が無くなり、耐久性、選針の信頼性(開口動作の確実性)の向上が図れるという利点を有する。
【0044】
しかも、本実施形態に係るジャカード機の選針装置によれば、縦針20に加わる荷重をナイフ17で支えるようにしているため、例え縦針20に大きな荷重が加わっても、それが縦針選針子5に直接的に伝わることはなく、圧電素子体8が損傷を受けるのを防止することができるという利点を有する。
【0045】
加えて、本実施形態に係るジャカード機の選針装置によれば、縦針選針子5が縦針20を係止するのではなく、ジャカード機本体側に設けられたナイフ17が縦針20を係止する構成であるため、ジャカード機の稼働中に選針装置に不具合が生じた場合、縦針選針子5,…から係止された縦針20,…をわざわざ外す作業が必要無くなり、従って、該選針装置を迅速且つ簡単に取り外すことができるという利点を有する。
【0046】
また、本実施形態に係るジャカード機の選針装置は、底板13とナイフ17とが逆位相で往復動する構成を採用しているため、底板13とナイフ17との移動ストロークを大きくすることができ、より有効な縦糸27,…の開口状態を得ることができるという利点を有する。
【0047】
尚、本発明は上述の実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲にて適宜変更可能である。
【0048】
即ち、揺動操作手段としての圧電素子体8は、セラミック層を重合させたバイモルフ圧電素子、又はユニモルフ圧電素子であってもよい。要は、揺動操作手段の湾曲を利用して、縦針選針子5を揺動させることができるものであれば、本発明の意図するところである。その場合、圧電素子体8に対する電圧の印加方法は、上記実施形態に限定されず、要は、圧電素子体8の湾曲態様の変化によって、縦針選針子5が二つの位置、即ち、突起部6が縦針20の進路Pに進出する位置及び突起部6が縦針20の進路Pから退避する位置に変更可能となればよい。
【0049】
また、上記実施形態の選針装置は、縦針20と縦糸27とが一対一で対応する、いわゆる単動式のものであるが、縦針選針子5と圧電素子体8との組み合わせをハウジング1の表裏の実装面に設け、一対の縦針20,20をそれぞれ別々のナイフ17,17で上下動可動とすると共に、縦針20,20の夫々下部に作動糸を接続し、該作動糸に第一滑車を懸吊し、該第一滑車と連結部材で連結された第二滑車に一端が固定された通糸を巻きかけた、いわゆる複動式の選針装置にも採用可能である。
【0050】
また、縦針選針子5、底板13、ナイフ17、縦針20の形状は、上記実施形態に限定されず、本発明の要旨を逸脱しない範囲にて変更可能である。縦針20にあっては、少なくとも先端側が変形可能であればよく、従って、縦針20全体が弾性を備えて変形可能であってもよい。
【0051】
さらに、上記実施形態においては、第一の搬送部材としての底板13及び第二の搬送部材としてのナイフ17を逆位相で往復動させるものであったが、要は、ハウジング1はジャカード機本体に固定され、底板13及びナイフ17が相対移動するものであればよい。従って、ナイフ17は動かず、底板13のみが上下動するものであってもよい。
【0052】
また、底板13及びナイフ17がそれぞれ往復動する場合であっても、上記実施形態の如く、縦針20が下降する際にその先端側が屈曲する態様に限定されず、縦針20が上昇する際にその先端側が屈曲する態様であってもよい。
【0053】
しかも、底板13とナイフ17とが同一方向に移動する必要はなく、両者が相対的に接近・離間を行なうのであれば、両者の移動方向が平行でない態様も採用可能である。
【0054】
<第二実施形態>
以下、複動式選針装置の一例として、本発明の第二実施形態に係るジャカード機の選針装置を図5及び図6に基づき説明する。
【0055】
縦針50は、上下方向に延びる帯板状の本体片51と、該本体片51の上端にインサート成型によって取り付けられた鉤体52と、本体片51の下端にインサート成型によって取り付けられたスライド体54と、本体片51の中間部位にインサート成型によって取り付けられたガイド体56とで構成されている。
【0056】
前記本体片51は、弾性を備えた帯状金属片からなり、本体片51のうち、鉤体52、スライド体54及びガイド体56が形成された箇所を除く部位、即ち、縦針50の上端側50a,50b(先端側)は、弾性(可撓性)を備えて屈曲(あるいは湾曲)可能となっている。
【0057】
また、前記鉤体52の一面(表面)には、係止部材としてのナイフ47に係止可能とすべく、鉤部53が形成され、一方、ガイド体56の他面(裏面)には、縦針選針子35と係合可能とすべく、突起部57が形成されている。前記鉤部53は、縦針50の最上端にフック状に突設されたものであり、前記突起部57は、鉤部53よりも低い位置(縦針50の上端側50a,50bの中間位置)に略直角台形状に突設されたものである。
【0058】
ここで、前記突起部57は、縦針50の長手方向に対して傾斜する傾斜面57aと、縦針20の長手方向に沿って平行な平坦面57bとを有している。本実施形態においては、傾斜面57aは、縦針50の先端側50aほど、縦針選針子35から遠ざかる(ハウジング31の実装面31aから離間する)方向に傾斜しており、平坦面57bは、傾斜面57aに連続して形成されている。
【0059】
また、前記スライド体54の一面(表面)には、搬送部材としての往復動ナイフ43に係止可能とすべく、係止部55が形成されている。該係止部55は、突起部57よりも低い位置にフック状に突設されたものであり、往復動ナイフ43から下方に抜け落ちるのを防止する目的を持つ。
【0060】
31は、平板状の基板からなるハウジングであり、該ハウジング31は、その下端部が、ジャカード機本体(図示しない)に一定間隔を以て並設された取付板40の上端部にそれぞれ近接配置され、着脱自在にしてジャカード機本体に装着されている。そして、ハウジング31の実装面31aに複数突出して並設された軸支部32,…に、縦針選針子35の一部に穿設された孔を嵌合させることにより、縦針選針子35は軸支部32を中心として揺動自在に複数配置される。
【0061】
また、前記縦針選針子35は、揺動中心に対する一方側である作用部35aと、他方側である揺動部35bとからなり、作用部35aは二股状に形成される一方、揺動部35bの先端は、ハウジング31の下端部から下方に臨出して、この部分には、縦針50の突起部57と係合可能とすべく、実装面31aと直交する方向に突起部36が突設されている。
【0062】
前記突起部36は、側面視略直角台形状に形成されており、該突起部36は、縦針50の長手方向に対して傾斜する傾斜面36aと、縦針50の長手方向に沿って平行な平坦面36bとを有している。本実施形態においては、傾斜面36aは、縦針選針子35の先端側ほど、縦針20から遠ざかる(ハウジング31の実装面31aに接近する)方向に傾斜しており、平坦面36bは、傾斜面36aに連続して形成されている。
【0063】
また、前記突起部36は、縦針選針子35に一対形成されており、該縦針選針子35の揺動部35bの先端は、側面視で下を向いたコ字状となっている。ここで、それぞれ突起部36の傾斜面36a及び平坦面36bが、立設した取付板40のそれぞれ縦面40a(表裏面)から外側に突出するよう、前記ハウジング31は取付板40に対して均等に配置されている。
【0064】
そして、これに併せて、一対の縦針50,50が、それぞれ取付板40の縦面40aに沿って配置され、スライド体54の他面(裏面)及びガイド体56の突起部57の平坦面57bが取付板40の縦面40aに摺接している。また、該一対の縦針50,50は、取付板40を挟んで該取付板40の板面と直交する方向に対向して配置されており、その結果、ガイド体56,56の突起部57,57は、略同一面上に並列する。
【0065】
また、一の取付板40の一方の縦面40aに接する縦針50のスライド体54と、隣の取付板40の他方の縦面40aに接する縦針50のスライド体54とは、近接対向配置されており、該一対のスライド体54,54の間に生じた偏平状空間部には、一の往復動ナイフ43が介装されている。該往復動ナイフ43の上端には、側面視V字状の溝が形成されており、それぞれ傾斜面に縦針50のスライド体54の係止部55が係止されることで、一の往復動ナイフ43をもって二本の縦針50,50が同時に昇降される。
【0066】
38は、揺動操作手段としての圧電素子体であり、先端が縦針選針子5の作用部5aの二股内に係入される。その他の詳細な形態は第一実施形態と異なるところはない。尚、一対の縦針50,50が対向配置されることにより、一対の突起部57,57が対向する位置にあるため、図7(イ)に示す如く、縦針選針子35を一方側に揺動させると、該縦針選針子35の一対の突起部36,36がそれぞれ縦針50の突起部57の進路上に位置して、両方の縦針50,50にとっての選針位置となり、図7(ロ)に示す如く、縦針選針子35を他方側に揺動させると、該縦針選針子35の一対の突起部36,36がそれぞれ縦針50の突起部57の進路から外れ、両方の縦針50,50にとっての非選針位置となる。
【0067】
第二実施形態に係るジャカード機の選針装置は以上の構成からなり、次に、縦針50の動作態様について説明する。
【0068】
図8(イ)は、二つの往復動ナイフ43,43が振幅の中心に位置した状態を示している。この時、縦針50の突起部57は、縦針選針子35の突起部36よりも下方に位置、即ち、縦針選針子35の突起部36と往復動ナイフ43との間に縦針50の突起部57が介在する位置にある。そして、縦針選針子35の突起部36は、縦針50の進路に進出した位置に揺動変位している。
【0069】
かかる状態から往復動ナイフ43とナイフ47とが相対離間、即ち、一方の往復動ナイフ43(図の左側)が上昇し、他方の往復動ナイフ43(図の右側)が下降することにより、一方の縦針50の突起部57と縦針選針子35の突起部36とが当接する。従って、図8(ロ)に示す如く、一方の往復動ナイフ43が上死点となり、他方の往復動ナイフ43が下死点となれば、一方の縦針50の先端側50aがナイフ47側に屈曲し、縦針50の鉤部53がナイフ47の上方領域に進入した状態となる。
【0070】
そして、かかる状態から一方の往復動ナイフ43が下降し、他方の往復動ナイフ43が上昇すれば、図8(ハ)に示す如く、一方の往復動ナイフ43が縦針50から離れ、縦針50の鉤部53がナイフ47に係止されて、該一方の縦針50は選針される。
【0071】
しかる後、一方の往復動ナイフ43が振幅中心からさらに下降し、他方の往復動ナイフ43が振幅中心からさらに上昇することにより、図9(イ)に示す如く、一方の往復動ナイフ43が下死点となり、他方の往復動ナイフ43が上死点となる。この時、縦針選針子35の突起部36は、縦針50の進路から退避した位置に揺動変位している。
【0072】
そのため、他方の往復動ナイフ43が上昇しても、他方の縦針50の突起部57と縦針選針子35の突起部36とが係合することはないため、縦針50の先端側50aが屈曲することはなく、他方の縦針50の鉤部53がナイフ47の上方領域に進入することもない。従って、他方の縦針50は、真っ直ぐな姿勢を維持し、鉤部53はナイフ47とすれ違うこととなる。
【0073】
しかる後、一方の往復動ナイフ43が上昇し、他方の往復動ナイフ43が下降することにより、図9(ロ)に示す如く、他方の縦針50は、選針されることなく、往復動ナイフ43と共に下降する。
【0074】
このように、ハウジング31上に並んだ複数の縦針選針子35,…のうち、所望する縦針選針子35を選択して、該縦針選針子35の突起部36を縦針50の進路に進出させることにより、所望する縦針50のみを選針して、複数並んだ縦糸の開口操作を行なうことができる。
【0075】
図10は、選針装置の動作態様の一例を示すグラフである。(イ)は一方の往復動ナイフ43の昇降態様、(ロ)は他方の往復動ナイフ43の昇降態様(一方の往復動ナイフ43の逆位相)、(ハ)は圧電素子体38への電圧印加態様(正ならば選針位置、負ならば非選針位置)、(ニ)は縦糸の開口態様を示している。
【0076】
まず、一方の往復動ナイフ43が上死点になる前(例えばaのタイミング)までに正の電圧を印加し、縦針選針子35を選針位置に揺動させておくことで、一方の縦針50が選針される。また、他方の往復動ナイフ43が上昇する際(例えばbのタイミング)も電圧印加は正のままであるので、他方の縦針50も選針される。さらに、一方の往復動ナイフ43が再度上昇する際(例えばcのタイミング)、電圧印加は未だに正のままであるので、一方の縦針50は選針状態が維持される。
【0077】
そして、他方の往復動ナイフ43が再度上死点になる前(例えばdのタイミング)までに電圧印加を負に転じ、縦針選針子35を非選針位置に揺動させておくことで、他方の縦針50の選針状態が解除され、次に、一方の往復動ナイフ43が再度上昇する際(例えばeのタイミング)、電圧印加は負のままであるので、一方の縦針50の選針状態も解除される。
【0078】
以上の如く、第二実施形態に係るジャカード機の選針装置は、第一実施形態に係る選針装置の効果を奏するのはもちろんであるが、特記すべきは、縦針50の突起部57が縦針選針子35の突起部36を越えて上方に移動することのない構成を採用しているため、選針装置を上方に引き抜く際、縦針選針子35と縦針50とが互いに干渉することは起こり得ず、従って、第一実施形態の選針装置に比べてより簡単に選針装置を取り外すことができるという効果を奏する。
【0079】
また、第二実施形態に係るジャカード機の選針装置は、第一実施形態のように、縦針50が下降する際にその先端側が屈曲するのではなく、縦針50が上昇する際にその先端側が屈曲する構成である。従って、往復動ナイフ43が下死点から僅かに上昇した位置(即ち、対となる往復動ナイフ43が上死点から僅かに下降して縦針50の突起部57と縦針選針子35の突起部36とが干渉しない位置)から、往復動ナイフ43が上死点に達する手前までの位置までの間を電圧印可の切り替えタイミングとして利用することができて、ゆとりのある制御を行うことができるという効果をも奏する。このことは、選針装置をさらにスピードアップして、織物の生産性を高めるという効果につながる。
【0080】
尚、複動式の選針装置は、上記実施形態に限定されず、縦針選針子35、往復動ナイフ43、ナイフ47、縦針50の形状は、上記実施形態に限定されず、本発明の要旨を逸脱しない範囲にて変更可能である。
【0081】
また、上記実施形態においては、一の縦針選針子35が一対の縦針50,50の選針操作を行うようにしていたが、圧電素子体38及び縦針選針子35をハウジング31の表裏に一対ずつ設けて複動式の選針装置を構成してもよい。
【0082】
また、上記実施形態の如く、一対の縦針50,50を対向配置することにより、縦針選針子35を一方側に揺動させると、両方の縦針50,50にとっての選針位置となる構成ではなく、上記実施形態に係る一対の縦針50,50をハウジング31の板面に沿って所定量(縦針選針子35の突起部36の揺動幅と略同等)ずらすことや、図11に示す如く、縦針50の突起部57を所定量変位させることにより、縦針選針子35を一方側に揺動させると、一方の縦針50にとっての選針位置となり、縦針選針子35を他方側に揺動させると、他方の縦針50にとっての選針位置となる構成も採用することができる。かかる場合、図10と同等の開口操作を得るためには、図12に示すような電圧印加態様となる。
【0083】
【発明の効果】
以上の如く、本発明に係るジャカード機の選針装置は、縦針の少なくとも先端側が、該縦針の進路に進出した縦針選針子との接触によって屈曲可能に形成され、しかも、該縦針と搬送部材とを相対変位させるべく、該縦針の屈曲した部位を係止可能な係止部材が設けられてなるため、従来の如く、縦針選針子を備えたハウジングの昇降動作に伴って大きな振動が発生するという問題や、この振動に起因して縦針と縦針選針子とが不測に係合解除されるという問題が無くなり、耐久性、選針の信頼性(開口動作の確実性)の向上を図ることができる。そして、選針装置の運転速度を速めることが可能となり、織物の生産性の向上を図ることができる。
【0084】
しかも、本発明に係るジャカード機の選針装置は、縦針選針子が縦針を係止するのではなく、ジャカード機本体側に設けられた係止部材が縦針を係止する構成であるため、ジャカード機の稼働中に選針装置に不具合が生じた場合であっても、該選針装置を迅速且つ簡単に取り外すことができ、チョコ停によるジャカード機の稼働率低下を好適に防止することができる。
【図面の簡単な説明】
【図1】本発明の第一実施形態に係る選針装置の選針態様を示す概略側面図であって、(イ)は、底板が上死点、ナイフが下死点にある状態、(ロ)は、底板が下降し、ナイフが上昇する状態、(ニ)は、底板が下死点、ナイフが上死点にある状態を示している。
【図2】同実施形態に係る選針装置の非選針態様を示す概略側面図であって、(イ)は、底板が上死点、ナイフが下死点にある状態、(ロ)は、底板が下降し、ナイフが上昇する状態、(ニ)は、底板が下死点、ナイフが上死点にある状態を示している。
【図3】同実施形態の選針装置の要部正面図を示している。
【図4】同実施形態の縦針であって、(イ)は、全体斜視図、(ロ)は、(イ)のA−A線断面図を示している。
【図5】本発明の第二実施形態に係る選針装置の要部側面図を示している。
【図6】同実施形態の縦針の全体斜視図を示している。
【図7】同実施形態の縦針及び縦針選針子の断面平面図であって、(イ)は、両方の縦針が選針可能となる縦針選針子の揺動態様、(ロ)は、何れの縦針も選針不可能となる縦針選針子の揺動態様を示している。
【図8】同実施形態に係る選針装置の選針態様を示す概略側面図であって、(イ)は、一対の往復動ナイフが振幅中心にある状態、(ロ)は、一方の往復動ナイフが上死点、他方の往復動ナイフが下死点にある状態、(ハ)は、一対の往復動ナイフが振幅中心にあり、一方の縦針が選針された状態を示している。
【図9】同実施形態に係る選針装置の選針態様を示す概略側面図であって、(イ)は、一方の往復動ナイフが下死点、他方の往復動ナイフが上死点にあり、一方の縦針が選針されたままの状態、(ロ)は、一対の往復動ナイフが振幅中心にあり、一方の縦針が選針されたままの状態を示している。
【図10】同実施形態に係る選針装置と縦針の状態のグラフであって、(イ)は、一方の往復動ナイフの変位−時間線図、(ロ)は、他方の往復動ナイフの変位−時間線図、(ハ)は、圧電素子体への印加電圧−時間線図、(ニ)は、縦糸の開口幅−時間線図を示している。
【図11】同実施形態の変形例に係る縦針及び縦針選針子の断面平面図であって、(イ)は、一方の縦針が選針可能となる縦針選針子の揺動態様、(ロ)は、他方の縦針が選針可能となる縦針選針子の揺動態様を示している。
【図12】同変形例に係る選針装置と縦針の状態のグラフであって、(イ)は、一方の往復動ナイフの変位−時間線図、(ロ)は、他方の往復動ナイフの変位−時間線図、(ハ)は、圧電素子体への印加電圧−時間線図、(ニ)は、縦糸の開口幅−時間線図を示している。
【図13】第一の従来の選針装置の概略側面図を示している。
【図14】第二の従来の選針装置の概略正面図を示している。
【符号の説明】
1,31…ハウジング、5,35…縦針選針子、5a,35a…作用部、5b,35b…揺動部、6,36…突起部、6a,36a…傾斜面、6b,36b…平坦面、8,38…圧電素子体、13…底板、43…往復動ナイフ、17,47…ナイフ、20,50…縦針、20a,50a,50b…上端側、23,53…鉤部、24,57…突起部、26,55…係止部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a needle selection device for a jacquard machine, which is a warp opening device for a loom.
[0002]
[Prior art]
Conventionally, a needle selection device for a vertical needle for opening a warp yarn of a jacquard machine is an arbitrary needle selection device using a band plate-like piezoelectric element body or an electromagnetic solenoid that is bent by electrostriction as an actuator. The vertical needle is selected by engaging the vertical needle selector with the vertical needle. For example, a device disclosed in Japanese Utility Model Publication No. 4-118484 is known. It is.
[0003]
As shown in FIG. 13, the needle selecting device of the jacquard machine described in this publication has a slide guide 100 that is driven up and down, and is inserted into the slide guide 100, and the collar portion 102 is locked to the slide guide 100. , A plurality of vertical needles 101 that can be raised as the slide guide 100 is raised, and a housing 104 that is disposed above the slide guide 100 and is driven up and down in the opposite phase to the slide guide 100. Yes.
[0004]
In the housing 104, a plurality of hook levers with permanent magnets (vertical needle selectors) 106,... Corresponding to the plurality of vertical needles 101,. An electromagnetic solenoid 109 having a magnetic core inserted therein is disposed at a predetermined position in the housing 104 facing the permanent magnet 107. Further, the lower end of each hook lever 106 is formed at the upper end of the vertical needle 101. A hook portion 108 that can be engaged with the flange portion 103 is formed.
[0005]
The hook lever 106 is in the vicinity of the final approach position of the slide guide 100 and the housing 104, and when the permanent magnet 107 is driven to repel by the electromagnetic solenoid 109, the hook portion 108 and the hook portion of the vertical needle 101 are used. On the other hand, when the permanent magnet 107 is attracted to the corresponding electromagnetic solenoid 109, the angular position at which the engagement is released is obtained.
[0006]
Therefore, by controlling the angular positions of the plurality of hook levers 106 for each hook lever 106 and selecting the desired longitudinal needle 101, the longitudinal thread connected to the lower end of the longitudinal needle 101 via the threading 110. (Not shown) can be opened in a desired manner.
[0007]
[Problems to be solved by the invention]
However, the needle selection device of the jacquard machine includes a plurality of hook levers 106, a plurality of electromagnetic solenoids 109, an electric circuit board (not shown) for controlling the plurality of electromagnetic solenoids 109, and Since the housing 104, which is a relatively heavy object provided with an electric cable (not shown), is configured to be driven up and down together with the selected vertical needles 101,..., A large vibration is generated as the housing 104 is moved up and down. There were many problems in terms of durability and reliability of needle selection (reliability of opening operation). On the other hand, in order to solve this vibration problem, it is conceivable to lower the raising / lowering speed of the housing 104, but this cannot improve productivity.
[0008]
Further, since there are various problems in the actuator of the electromagnetic solenoid 109, the needle selection device of the Jacquard machine disclosed in Japanese Patent Laid-Open No. 11-81104 prior to the present application by the applicant of the present application is as shown in FIG. The band-shaped piezoelectric element body 121 that is curved by application of a voltage is used as an actuator, and the one end 122 of the piezoelectric element body 121 is engaged with the vertical needle selector 123 so that the vertical needle selection is performed by bending the piezoelectric element body 121. A configuration is adopted in which the needle 123 is swung between the needle selection position B and the non-needle selection position A. According to this configuration, when a large load is applied to the vertical needle 124, the vertical needle needle selector 123 is directly applied. The connected piezoelectric element body 121 may be damaged.
[0009]
Further, in any of the above-mentioned publications, the jacquard needle selecting device can be removed from the jacquard machine body (not shown) for maintenance and the life of the electromagnetic solenoid 109 (piezoelectric element body 121). However, in the operation of removing the needle selection device when a problem occurs in the needle selection device during operation of the jacquard machine, first, a plurality of vertical needles 101,... (124,. ) From the hook levers 106,... (Longitudinal needle selectors 123,...), And this operation is extremely complicated and takes a long time. It was a cause of lowering the operating rate.
[0010]
Accordingly, the present invention has been made in view of the above-described problems, and provides a needle selection device for a jacquard machine that is excellent in durability, needle selection reliability (opening reliability), and load resistance. This is a first problem, and at the same time, a second problem is to provide a needle selection device for a jacquard machine that can be easily replaced.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problems, a needle selection device for a jacquard machine according to the present invention includes conveying members 13 and 43 that reciprocate with a plurality of vertical needles 20,. A plurality of needle selection needles that are arranged in the direction of movement 13 and 43 and can swing between a position A that advances into the path P of the vertical needles 20 and 50 and a position B that retreats from the path P of the vertical needles 20 and 50, respectively. .., 35,..., In which at least the distal end sides 20a, 50a of the vertical needles 20, 50 have advanced into the path P of the vertical needles 20, 50. It is formed to be bendable by contact with the needle selectors 5 and 35, and the bent portions 23 and 53 of the vertical needles 20 and 50 are arranged so as to relatively displace the vertical needles 20 and 50 and the conveying members 13 and 43. Are provided with locking members 17 and 47 capable of locking Either one of the vertical needles 20 and 50 or the vertical needle selectors 5 and 35 is formed with inclined surfaces 6a and 36a that are inclined with respect to the path P of the vertical needles 20 and 50. Protrusions 24 and 57 that can slide 6a and 36a are formed, and the vertical needles 20 and 50 are bent when the protrusions 24 and 57 slide on the inclined surfaces 6a and 36a. It is characterized by.
[0012]
According to the needle selection device of the jacquard machine having the above-described configuration, at least the distal end side 20a, 50a of the vertical needles 20, 50 bent by contact with the vertical needle selectors 5, 35 are engaged with the locking members 17, 47. When the conveying members 13 and 43 are separated from the vertical needle selectors 5 and 35 in the stopped state, relative displacement between the vertical needles 20 and 50 and the conveying members 13 and 43 is performed. On the other hand, since the vertical needles 20 and 50 that do not bend because they do not come into contact with the vertical needle selectors 5 and 35 are not locked to the locking members 17 and 47, the vertical needle selection is performed together with the conveying members 13 and 43. Relative to the needles 5 and 35, the vertical needles 20 and 50 and the conveying members 13 and 43 are not displaced relative to each other. By performing any one of these operations on the warp needles 20 and 50, the warp opening operation can be performed.
[0013]
Further, the needle selection device of the jacquard machine according to the present invention includes a conveying member 13, 43 that reciprocates by locking a plurality of vertical needles 20, ..., 50, and a traveling direction of the conveying member 13, 43. A plurality of needle selectors 5,..., 35 that can be swung to a position A that advances into the path P of the vertical needles 20 and 50 and a position B that retreats from the path P of the vertical needles 20 and 50, respectively. ,...,...,...,... At least the distal ends 20a, 50a of the longitudinal needles 20, 50 have advanced into the path P of the longitudinal needles 20, 50. The bent portions 23 and 53 of the vertical needles 20 and 50 can be locked in order to displace the vertical needles 20 and 50 and the conveying members 13 and 43 relative to each other. Stop members 17 and 47 are provided, and the conveying unit is provided for one vertical needle selector 35. 43, the locking member 47 and the Tatehari 50 are provided in pairs, respectively, moreover, a pair of conveying members 43 and 43, is configured to reciprocate in opposite phases A pair of inclined surfaces 36 a and 36 a that are inclined with respect to the path P of the vertical needle 50 are formed at the tip of the vertical needle selector 35, and the inclined surface 36 a is slid on each vertical needle 50. Each of the vertical needles 50 is formed by sliding one of the projections 57 on one inclined surface 36a and the other projection 57 on the other inclined surface 36a. Configured to bend It is characterized by becoming. Thereby, a double-acting needle selection device can be obtained.
[0014]
According to the needle selection device of the Jacquard machine having the above-described configuration, the pair of conveying members 43 and 43 and the pair of vertical needles 50 and 50 are alternately reciprocated. The needle selection or non-needle selection is performed every time any of the vertical needles 50 approaches. By moving the pair of conveying members 43 and 43 in opposite phases, both the two vertical needles 50 and 50 do not approach at the same time, so that the needle selection or non-needle selection operation does not interfere with each other, With one vertical needle selector 3, the needle selection or non-needle selection operation of the pair of vertical needles 50, 50 can be performed independently.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
<First embodiment>
Hereinafter, a needle selection device for a jacquard machine according to a first embodiment of the present invention will be described with reference to FIGS.
[0016]
Reference numeral 20 denotes a warp needle which performs an opening operation of the warp thread 27 by connecting a thread 28 connected to the warp thread 27. The vertical needle 20 has a strip-shaped main body piece 21 extending in the vertical direction, and a reinforcing piece 22 attached along the longitudinal direction of the main body piece 21 except for the upper end side 20a and the lower end side 20b of the main body piece 21. It consists of and. The reinforcing piece 22 is in the form of a strip attached along the center line of the main body piece 21 so as to be orthogonal to the plate surface of the main body piece 21, and as shown in FIG. It has a letter shape.
[0017]
The main body piece 21 and the reinforcing piece 22 are integrally formed by resin molding and are made of a nylon plastic molded product. Therefore, portions of the main body piece 21 excluding the portion where the reinforcing piece 22 is formed, that is, the upper end side 20a (front end side) and the lower end side 20b of the vertical needle 20 are bent with elasticity (flexibility) ( (Or curved). Any material having elasticity, for example, a spring metal such as a wire or a flat spring, can be used as the material of the vertical needle 20.
[0018]
Further, a flange 23 is formed on one surface (front surface) of the upper end side 20a of the vertical needle 20 so as to be able to be locked to the knife 17, while the other surface (rear surface) of the upper end side 20a of the vertical needle 20 is formed. A protrusion 24 is formed so as to be engageable with the vertical needle selector 5. The hook 23 is provided in a hook-like manner at the uppermost end of the vertical needle 20, and the protrusion 24 is located at a position lower than the hook 23 (an intermediate position on the upper end side 20 a of the vertical needle 20). It is projected in a semicircular arc shape.
[0019]
Further, a hook portion 25 for hooking the thread 28 is formed on the lower end side 20 b of the vertical needle 20. The hook portion 25 is formed by narrowing the lowermost end of the vertical needle 20 into a bar shape and bending it into a substantially U shape, and a thread passing portion 28 is bound thereto.
[0020]
Further, a locking portion (stepped portion) 26 is formed in the middle position of the vertical needle 20 so as to be locked to the bottom plate 13 by narrowing the width of the main body piece 21. The locking portion 26 is formed by making the width of the upper end side 20a narrower than the width of the lower end side 20b, and has the purpose of preventing the bottom plate 13 from falling downward.
[0021]
Reference numeral 1 denotes a housing made of a flat substrate, and the housing 1 is fixedly attached to the jacquard machine body. Then, by fitting a hole formed in a part of the vertical needle selector 5 to a plurality of shaft support portions 2, which are juxtaposed on the mounting surface 1 a of the housing 1, a vertical needle selector A plurality of 5 are arranged so as to be swingable about the shaft support 2.
[0022]
The vertical needle selector 5 includes an action portion 5a on one side with respect to the swing center and a swing portion 5b on the other side. The action portion 5a is formed in a bifurcated shape, while the swing portion 5b. A protruding portion 6 is projected from the tip of the vertical needle 20 in a direction away from the mounting surface 1 a so that the protruding portion 24 can be engaged with the protruding portion 24 of the vertical needle 20.
[0023]
The protrusion 6 is formed in a substantially right trapezoidal shape when viewed from the side, and the protrusion 6 extends along the inclined surface 6 a inclined with respect to the longitudinal direction P of the vertical needle 20 and the longitudinal direction P of the vertical needle 20. And a parallel flat surface 6b. In the present embodiment, the inclined surface 6a is inclined in a direction closer to the vertical needle 20 (away from the mounting surface 1a of the housing 1) toward the distal end side of the vertical needle selector 5, and the flat surface 6b is It is formed continuously on the inclined surface 6a.
[0024]
Reference numeral 8 denotes a piezoelectric element body as a swing operation means. The piezoelectric element body 8 is formed in a band plate shape, and one end is clamped and fixed to a protrusion 3 formed on the mounting surface 1a of the housing 1, The other end is inserted into the fork of the action portion 5a of the vertical needle selector 5.
[0025]
The piezoelectric element body 8 is formed, for example, by forming a metal base material that is easy to bend and excellent in bending fatigue strength into a strip shape, and has a surface coated with a piezoelectric ceramic layer. A voltage is applied between the metal base material and the piezoelectric ceramic layer. When applied, the piezoelectric ceramic layer exhibits an electrostrictive phenomenon, and bending stress is generated in the metal substrate. In addition, the bending direction of the piezoelectric element body 8 can be changed depending on whether the voltage applied is positive or negative.
[0026]
Therefore, since the piezoelectric element body 8 is attached with the band plate surface being vertical with respect to the mounting surface 1 a, the piezoelectric element body 8 is curved along the mounting surface 1 a and the other end is within the fork of the vertical needle selector 5. However, when a positive voltage is applied, the piezoelectric element body 8 is curved in the direction of the piezoelectric element body 8 adjacent to the left. When the vertical needle selector 5 is swung counterclockwise and a negative voltage is applied, the piezoelectric element body 8 is bent in the direction of the piezoelectric element body 8 adjacent to the right, thereby The needle selector 5 is swung clockwise.
[0027]
Moreover, on the mounting surface 1a of the housing 1, a plurality of restraining portions 4,... Are arranged in parallel at the same interval as the shaft support portion 2, and the swinging vertical needle selector 5 is located on any of the restraining portions 4 on both sides. , 4 are in contact with each other, and the swing range of the vertical needle selector 5 is limited.
[0028]
As described above, when a positive voltage is applied to the piezoelectric element body 8, the piezoelectric element body 8 is curved and the vertical needle selector 5 swings clockwise, and the vertical needle selector 5 Oscillates to a position in contact with the restraining portion 4 located in the oscillating direction, that is, a position A that is substantially collinear with the vertical needle 20, while a negative voltage is applied to the piezoelectric element body 8. Is a position where the piezoelectric element body 8 is curved and the vertical needle selector 5 swings counterclockwise, and the vertical needle selector 5 abuts against the restraining portion 4 positioned in the swinging direction, That is, it swings to a position B inclined with respect to the longitudinal direction of the vertical needle 20.
[0029]
In order to selectively swing the plurality of vertical needle selectors 5 arranged in parallel at the same interval, any piezoelectric element among the piezoelectric element bodies 8 arranged in parallel at the same interval is used. A circuit board (not shown) for applying a voltage to the body 8 is provided in the housing 1, and the circuit board is controlled by a signal and power sent via a cord (not shown).
[0030]
The bottom plate 13 functions as a first conveying member that locks the vertical needle 20 to reciprocate the vertical needle 20, and includes a pair of flat plates arranged in the longitudinal direction of the vertical needle 20. Further, substantially T-shaped insertion holes 14a and 14b are formed in the upper bottom plate 13a located on the housing 1 side and the lower bottom plate 13b located on the warp yarn 27 side, respectively. Accordingly, the single vertical needle 20 is inserted into the pair of insertion holes 14a and 14b and can slide in the longitudinal direction.
[0031]
Moreover, the insertion hole 14b of the lower bottom plate 13b is formed to have a size such that the locking portion 26 of the vertical needle 20 is caught (locked) in order to prevent the vertical needle 20 from falling off the bottom plate 13 and falling. ing. Therefore, the vertical needles 20,... Locked to the bottom plate 13 are moved up and down on the path P as the bottom plate 13 moves up and down (up and down).
[0032]
The knife 17 serves as a second conveying member that locks the collar 23 of the vertical needle 20 and relatively displaces the vertical needle 20 and the bottom plate 13. Is formed of a strip plate body arranged parallel to the mounting surface 1a of the housing 1. Like the bottom plate 13, the knife 17 reciprocates in the vertical direction, and the direction is in the direction of contact with and separation from the bottom plate 13. Moreover, the knife 17 moves up and down in parallel with the path P at a position away from the path P of the vertical needle 20 by a predetermined distance.
[0033]
The bottom plate 13 and the knife 17 are driven and controlled to reciprocate in opposite phases. While the bottom plate 13 is raised, the knife 17 is lowered while the bottom plate 13 is lowered. When the knife 17 is raised and the bottom plate 13 is located at the top dead center, the knife 17 is located at the bottom dead center, while when the bottom plate 13 is located at the bottom dead center, the knife 17 is at the top dead center. Located in.
[0034]
The needle selection device of the jacquard machine according to the present embodiment has the above configuration, and the needle selection mode of the vertical needle 20 will be described below.
[0035]
First, an aspect in which the vertical needle 20 is selected will be described with reference to FIG. FIG. 1A shows a state in which the bottom plate 13 and the knife 17 are closest to each other. At this time, the protrusion 24 of the vertical needle 20 is positioned above the protrusion 6 of the vertical needle selector 5, that is, between the protrusion 24 of the vertical needle 20 and the bottom plate 13. The protrusion 6 is in a position where it intervenes. Then, the protrusion 6 of the vertical needle selector 5 is displaced to a position A (see FIG. 3) where the vertical needle 20 has advanced into the path P.
[0036]
When the bottom plate 13 and the knife 17 are relatively separated from such a state, that is, when the bottom plate 13 is lowered and the knife 17 is raised, as shown in FIG. 1 (b), the projection 24 of the vertical needle 20 and the vertical needle selector 5 The protrusions 6 of the vertical needles 20 are engaged, and the protrusions 24 of the vertical needles 20 slide on the inclined surfaces 6 a and the flat surfaces 6 b of the protrusions 6 of the vertical needle selector 5. The bend 23 of the vertical needle 20 enters the path of the knife 17. Therefore, the collar portion 23 of the vertical needle 20 is locked to the rising knife 17.
[0037]
Thereafter, the base plate 13 and the knife 17 are further separated, whereby the selected vertical needle 20 is lifted upward by the movement of the knife 17 as shown in FIG. Is lifted.
[0038]
Next, an aspect in which the vertical needle 20 is not selected will be described with reference to FIG. FIG. 2A shows a state in which the bottom plate 13 and the knife 17 are closest to each other. At this time, the protrusion 24 of the vertical needle 20 is positioned above the protrusion 6 of the vertical needle selector 5, that is, between the protrusion 24 of the vertical needle 20 and the bottom plate 13. The protrusion 6 is in a position where it intervenes. Then, the protrusion 6 of the vertical needle selector 5 is displaced to a position B (see FIG. 3) retracted from the path P of the vertical needle 20.
[0039]
Even if the bottom plate 13 and the knife 17 are relatively separated from this state, that is, even if the bottom plate 13 is lowered and the knife 17 is raised, as shown in FIG. Since the protrusion 6 of the child 5 is not engaged, the distal end side 20 a of the vertical needle 20 is not bent, and the collar portion 23 of the vertical needle 20 does not enter the path of the knife 17. Therefore, the vertical needle 20 maintains a straight posture, and the collar portion 23 is not locked to the rising knife 17 and passes the knife 17.
[0040]
Thereafter, when the bottom plate 13 and the knife 17 are further separated from each other, as shown in FIG. 2C, the vertical needle 20 that is not selected is lowered together with the bottom plate 13, and the warp 27 is lowered accordingly.
[0041]
As shown in FIG. 1C or FIG. 2C, the bottom plate 13 reaches the bottom dead center, and after the knife 17 reaches the top dead center, the bottom plate 13 and the knife 17 are relatively close to each other. The bottom plate 13 turns upward and the knife 17 turns downward. In this case, the protruding portion 24 of the rising vertical needle 20 must be moved above the protruding portion 6 of the vertical needle selector 5. Needle selectors 5,... Must be swung so that all protrusions 6,... Retract from the course P,.
[0042]
Thus, the desired vertical needle selector 5 is selected from the plurality of vertical needle selectors 5,... Arranged on the housing 1, and the protrusion 6 is advanced into the path P of the vertical needle 20. As a result, only the desired longitudinal needle 20 can be selected, and the opening operation of a plurality of aligned longitudinal threads 27 can be performed.
[0043]
As described above, according to the needle selection device of the jacquard machine according to the present embodiment, the housing 1 to which the vertical needle selectors 5 are attached is fixed without moving, and the knife 17 is smaller and lighter than the housing 1. Since the vertical needle 20 is selected by raising and lowering the needle, there is a problem that a large vibration is generated as the housing moves up and down as in the prior art, and the vertical needle and the vertical needle are caused by this vibration. The problem that the needle selector is unexpectedly disengaged is eliminated, and there is an advantage that durability and reliability of needle selection (reliability of opening operation) can be improved.
[0044]
Moreover, according to the needle selection device of the jacquard machine according to the present embodiment, since the load applied to the vertical needle 20 is supported by the knife 17, even if a large load is applied to the vertical needle 20, for example, There is an advantage that the piezoelectric element body 8 can be prevented from being damaged without being directly transmitted to the needle selector 5.
[0045]
In addition, according to the needle selection device of the jacquard machine according to the present embodiment, the vertical needle selector 5 does not lock the vertical needle 20, but the knife 17 provided on the jacquard machine main body side is vertical. Since the needle 20 is configured to be locked, if the needle selection device malfunctions during operation of the jacquard machine, the operation of bothering the vertical needles 20 locked from the vertical needle selectors 5,. Has the advantage that the needle selection device can be removed quickly and easily.
[0046]
Moreover, since the needle selection device of the jacquard machine according to the present embodiment employs a configuration in which the bottom plate 13 and the knife 17 reciprocate in opposite phases, the movement stroke between the bottom plate 13 and the knife 17 is increased. , And a more effective opening state of the warp yarns 27,... Can be obtained.
[0047]
In addition, this invention is not limited to the above-mentioned embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.
[0048]
That is, the piezoelectric element body 8 as the swing operation means may be a bimorph piezoelectric element or a unimorph piezoelectric element in which ceramic layers are polymerized. The point is that the present invention is intended as long as the vertical needle selector 5 can be swung using the curvature of the swing operation means. In that case, the method of applying a voltage to the piezoelectric element body 8 is not limited to the above-described embodiment. In short, the vertical needle selector 5 has two positions, that is, protrusions, depending on the change in the bending mode of the piezoelectric element body 8. It suffices that the position 6 can be changed to the position where the vertical needle 20 advances into the path P and the position where the protrusion 6 retracts from the path P of the vertical needle 20.
[0049]
The needle selection device of the above embodiment is a so-called single-acting type in which the vertical needles 20 and the vertical threads 27 correspond one-to-one, but a combination of the vertical needle selector 5 and the piezoelectric element body 8 is used. Provided on the front and back mounting surfaces of the housing 1, the pair of vertical needles 20, 20 are movable up and down by separate knives 17, 17, and operating yarns are connected to the lower portions of the vertical needles 20, 20, It is also applicable to the so-called double-acting needle selection device that hangs the first pulley around the thread and wraps the thread that has one end fixed to the second pulley connected to the first pulley by a connecting member. is there.
[0050]
Further, the shapes of the vertical needle selector 5, the bottom plate 13, the knife 17, and the vertical needle 20 are not limited to the above-described embodiment, and can be changed without departing from the gist of the present invention. The vertical needle 20 only needs to be deformable at least on the distal end side. Therefore, the entire vertical needle 20 may be deformable with elasticity.
[0051]
Furthermore, in the said embodiment, although the bottom plate 13 as a 1st conveying member and the knife 17 as a 2nd conveying member were reciprocated by an antiphase, the housing 1 is a jacquard machine main body in short. The bottom plate 13 and the knife 17 may be moved relative to each other. Therefore, the knife 17 may not move, and only the bottom plate 13 may move up and down.
[0052]
Further, even when the bottom plate 13 and the knife 17 are reciprocally moved, they are not limited to the mode in which the tip side is bent when the vertical needle 20 is lowered as in the above embodiment, and when the vertical needle 20 is raised. Alternatively, the tip side may be bent.
[0053]
In addition, it is not necessary for the bottom plate 13 and the knife 17 to move in the same direction, and it is also possible to adopt a mode in which the movement directions of the two are not parallel as long as they are relatively approaching and separating.
[0054]
<Second embodiment>
Hereinafter, a jacquard needle selection device according to a second embodiment of the present invention will be described with reference to FIGS. 5 and 6 as an example of a double-acting needle selection device.
[0055]
The vertical needle 50 includes a strip-shaped main body piece 51 extending in the vertical direction, a housing 52 attached to the upper end of the main body piece 51 by insert molding, and a slide body attached to the lower end of the main body piece 51 by insert molding. 54 and a guide body 56 attached to an intermediate portion of the main body piece 51 by insert molding.
[0056]
The main body piece 51 is formed of a band-shaped metal piece having elasticity, and a portion of the main body piece 51 excluding a portion where the housing 52, the slide body 54, and the guide body 56 are formed, that is, the upper end side of the vertical needle 50. 50a and 50b (tip side) have elasticity (flexibility) and can be bent (or curved).
[0057]
A flange 53 is formed on one surface (front surface) of the housing 52 so that it can be locked to the knife 47 as a locking member. On the other surface (back surface) of the guide body 56, A protrusion 57 is formed so as to be engageable with the vertical needle selector 35. The hook 53 is provided in a hook-like manner at the uppermost end of the vertical needle 50, and the protrusion 57 is positioned lower than the hook 53 (an intermediate position between the upper end sides 50a and 50b of the vertical needle 50). ) Projecting in a substantially right trapezoidal shape.
[0058]
Here, the protrusion 57 has an inclined surface 57 a that is inclined with respect to the longitudinal direction of the vertical needle 50, and a flat surface 57 b that is parallel to the longitudinal direction of the vertical needle 20. In the present embodiment, the inclined surface 57a is inclined in a direction away from the vertical needle selector 35 (away from the mounting surface 31a of the housing 31) as the distal end side 50a of the vertical needle 50, and the flat surface 57b is , And is formed continuously with the inclined surface 57a.
[0059]
Further, a locking portion 55 is formed on one surface (surface) of the slide body 54 so as to be locked to the reciprocating knife 43 serving as a conveying member. The locking portion 55 is provided in a hook shape at a position lower than the projection portion 57 and has the purpose of preventing the downward movement from the reciprocating knife 43.
[0060]
Reference numeral 31 denotes a housing formed of a flat substrate, and the lower end of the housing 31 is disposed close to the upper end of the mounting plate 40 arranged in parallel to the jacquard machine body (not shown) at a predetermined interval. It is detachably attached to the jacquard machine body. Then, by fitting a hole formed in a part of the vertical needle selector 35 to the shaft support portions 32,... Projecting in parallel from the mounting surface 31a of the housing 31, a vertical needle selector A plurality of 35 are arranged so as to be swingable around the shaft support 32.
[0061]
The vertical needle selector 35 includes an action portion 35a on one side with respect to the swing center and a swing portion 35b on the other side. The action portion 35a is formed in a bifurcated shape. The tip of the portion 35b protrudes downward from the lower end portion of the housing 31, and in this portion, a protrusion 36 is formed in a direction perpendicular to the mounting surface 31a so as to be engageable with the protrusion 57 of the vertical needle 50. Projected.
[0062]
The protrusion 36 is formed in a substantially right trapezoidal shape when viewed from the side. The protrusion 36 is parallel to the inclined surface 36 a inclined with respect to the longitudinal direction of the vertical needle 50 and along the longitudinal direction of the vertical needle 50. And a flat surface 36b. In the present embodiment, the inclined surface 36a is inclined in a direction away from the vertical needle 20 (approaching the mounting surface 31a of the housing 31) toward the distal end side of the vertical needle selector 35, and the flat surface 36b is It is formed continuously on the inclined surface 36a.
[0063]
The protrusions 36 are formed in a pair on the vertical needle selector 35, and the tip of the swinging portion 35b of the vertical needle selector 35 has a U-shape facing downward in a side view. Yes. Here, the housing 31 is even with respect to the mounting plate 40 so that the inclined surface 36a and the flat surface 36b of the protruding portion 36 protrude outward from the respective vertical surfaces 40a (front and back surfaces) of the mounting plate 40 erected. Is arranged.
[0064]
Along with this, a pair of vertical needles 50, 50 are respectively arranged along the vertical surface 40 a of the mounting plate 40, and the other surface (back surface) of the slide body 54 and the flat surface of the projection 57 of the guide body 56. 57 b is in sliding contact with the vertical surface 40 a of the mounting plate 40. In addition, the pair of vertical needles 50 and 50 are arranged to face each other in a direction perpendicular to the plate surface of the mounting plate 40 with the mounting plate 40 interposed therebetween. As a result, the protrusions 57 of the guide bodies 56 and 56 are arranged. , 57 are arranged in parallel on substantially the same plane.
[0065]
Further, the slide body 54 of the vertical needle 50 in contact with one vertical surface 40a of one mounting plate 40 and the slide body 54 of the vertical needle 50 in contact with the other vertical surface 40a of the adjacent mounting plate 40 are arranged close to each other. One reciprocating knife 43 is interposed in the flat space formed between the pair of slide bodies 54, 54. At the upper end of the reciprocating knife 43, a V-shaped groove is formed in a side view, and the reciprocating knife 43 is reciprocated by engaging the engaging portion 55 of the slide body 54 of the vertical needle 50 with the inclined surface. With the moving knife 43, the two vertical needles 50, 50 are raised and lowered simultaneously.
[0066]
Reference numeral 38 denotes a piezoelectric element body as a swing operation means, and the tip is engaged in the fork of the action portion 5 a of the vertical needle selector 5. Other detailed forms are not different from the first embodiment. Since the pair of vertical needles 50, 50 are arranged to face each other, the pair of protrusions 57, 57 are in positions facing each other. Therefore, as shown in FIG. When the pair of protrusions 36 and 36 of the vertical needle selector 35 are positioned on the path of the protrusion 57 of the vertical needle 50, the needle selection positions for both the vertical needles 50 and 50 are moved. Thus, as shown in FIG. 7B, when the vertical needle selector 35 is swung to the other side, the pair of protrusions 36, 36 of the vertical needle selector 35 are respectively the protrusions 57 of the vertical needle 50. This is a non-needle selection position for both the vertical needles 50, 50.
[0067]
The needle selection device of the jacquard machine according to the second embodiment has the above-described configuration. Next, the operation mode of the vertical needle 50 will be described.
[0068]
FIG. 8A shows a state in which the two reciprocating knives 43, 43 are located at the center of the amplitude. At this time, the protrusion 57 of the vertical needle 50 is positioned below the protrusion 36 of the vertical needle selector 35, that is, between the protrusion 36 of the vertical needle selector 35 and the reciprocating knife 43. It exists in the position where the protrusion part 57 of the needle | hook 50 interposes. The protrusion 36 of the vertical needle selector 35 is oscillated and displaced to a position where it has advanced into the path of the vertical needle 50.
[0069]
From such a state, the reciprocating knife 43 and the knife 47 are relatively separated from each other, that is, when one reciprocating knife 43 (left side in the figure) rises and the other reciprocating knife 43 (right side in the figure) falls, The projection 57 of the vertical needle 50 and the projection 36 of the vertical needle selector 35 abut. Therefore, as shown in FIG. 8 (b), when one reciprocating knife 43 is at the top dead center and the other reciprocating knife 43 is at the bottom dead center, the tip side 50a of one vertical needle 50 is on the knife 47 side. And the flange 53 of the vertical needle 50 enters the upper region of the knife 47.
[0070]
When one reciprocating knife 43 is lowered from this state and the other reciprocating knife 43 is raised, one reciprocating knife 43 is separated from the vertical needle 50 as shown in FIG. The 50 collars 53 are locked to the knife 47, and the one vertical needle 50 is selected.
[0071]
Thereafter, one reciprocating knife 43 is further lowered from the center of amplitude, and the other reciprocating knife 43 is further raised from the center of amplitude, so that one reciprocating knife 43 is lowered as shown in FIG. The dead center is reached, and the other reciprocating knife 43 is the top dead center. At this time, the protrusion 36 of the vertical needle selector 35 is oscillated and displaced to a position retracted from the path of the vertical needle 50.
[0072]
Therefore, even if the other reciprocating knife 43 is raised, the projection 57 of the other vertical needle 50 and the projection 36 of the vertical needle selector 35 are not engaged. 50 a is not bent, and the collar portion 53 of the other vertical needle 50 does not enter the upper region of the knife 47. Therefore, the other vertical needle 50 maintains a straight posture, and the collar portion 53 passes the knife 47.
[0073]
Thereafter, when one reciprocating knife 43 is raised and the other reciprocating knife 43 is lowered, the other vertical needle 50 is reciprocated without being selected as shown in FIG. It goes down with the knife 43.
[0074]
As described above, a desired vertical needle selector 35 is selected from the plurality of vertical needle selectors 35 arranged on the housing 31, and the protrusion 36 of the vertical needle selector 35 is set to the vertical needle. By advancing in the 50 courses, it is possible to select only the desired longitudinal needles 50 and perform the opening operation of a plurality of aligned longitudinal yarns.
[0075]
FIG. 10 is a graph illustrating an example of an operation mode of the needle selection device. (A) is a lifting mode of one reciprocating knife 43, (b) is a lifting mode of the other reciprocating knife 43 (reverse phase of one reciprocating knife 43), and (c) is a voltage to the piezoelectric element body 38. The application mode (needle selection position if positive, non-needle selection position if negative), (d) indicates the warp opening mode.
[0076]
First, a positive voltage is applied before one reciprocating knife 43 reaches top dead center (for example, timing a), and the vertical needle selector 35 is swung to the needle selection position. The vertical needle 50 is selected. Further, when the other reciprocating knife 43 is raised (for example, at timing b), the voltage application remains positive, so the other vertical needle 50 is selected. Furthermore, when one reciprocating knife 43 is raised again (for example, timing c), the voltage application still remains positive, so that one of the vertical needles 50 is maintained in the needle selection state.
[0077]
Then, before the other reciprocating knife 43 is again at the top dead center (for example, timing d), the voltage application is turned negative, and the vertical needle selector 35 is swung to the non-needle selection position. When the needle selection state of the other vertical needle 50 is released and then one reciprocating knife 43 is raised again (for example, timing e), the voltage application remains negative, so one vertical needle 50 The needle selection state of is also canceled.
[0078]
As described above, the needle selection device of the jacquard machine according to the second embodiment naturally has the effect of the needle selection device according to the first embodiment. 57 adopts a configuration that does not move upward beyond the protrusion 36 of the vertical needle selector 35. Therefore, when the needle selection device is pulled upward, the vertical needle selector 35, the vertical needle 50, Therefore, the needle selection device can be removed more easily than the needle selection device of the first embodiment.
[0079]
In addition, the needle selection device of the jacquard machine according to the second embodiment is not the case where the tip side is bent when the vertical needle 50 is lowered as in the first embodiment, but when the vertical needle 50 is raised. The tip side is bent. Therefore, the position where the reciprocating knife 43 is slightly raised from the bottom dead center (that is, the pair of reciprocating knives 43 is slightly lowered from the top dead center and the protrusion 57 of the vertical needle 50 and the vertical needle selector 35 are located. The position from the position where the protrusion 36 of the reciprocating knife 43 does not interfere with the position before the reciprocating knife 43 reaches the top dead center can be used as the switching timing of the voltage application, and the control is performed with ease. It also has the effect of being able to. This leads to the effect of further speeding up the needle selection device and increasing the productivity of the fabric.
[0080]
The double-acting needle selection device is not limited to the above embodiment, and the shapes of the vertical needle selector 35, the reciprocating knife 43, the knife 47, and the vertical needle 50 are not limited to the above embodiment. Changes can be made without departing from the scope of the invention.
[0081]
In the above embodiment, one vertical needle selector 35 performs a needle selection operation of the pair of vertical needles 50 and 50. However, the piezoelectric element body 38 and the vertical needle selector 35 are arranged in the housing 31. A double-acting needle selection device may be configured by providing a pair on each of the front and back sides.
[0082]
Moreover, when the vertical needle selector 35 is swung to one side by arranging the pair of vertical needles 50 and 50 to face each other as in the above embodiment, the needle selection positions for both the vertical needles 50 and 50 are The pair of vertical needles 50, 50 according to the above embodiment is not shifted by a predetermined amount along the plate surface of the housing 31 (substantially equivalent to the swinging width of the protrusion 36 of the vertical needle selector 35). As shown in FIG. 11, when the vertical needle selector 35 is swung to one side by displacing the projection 57 of the vertical needle 50 by a predetermined amount, the needle selection position for one vertical needle 50 is obtained, When the needle selector 35 is swung to the other side, a configuration that becomes a needle selection position for the other vertical needle 50 can also be employed. In such a case, in order to obtain an opening operation equivalent to that in FIG. 10, a voltage application mode as shown in FIG. 12 is used.
[0083]
【The invention's effect】
As described above, in the needle selection device of the jacquard machine according to the present invention, at least the distal end side of the vertical needle is formed to be bendable by contact with the vertical needle selector that has advanced into the course of the vertical needle, Since a locking member capable of locking the bent portion of the vertical needle is provided in order to relatively displace the vertical needle and the conveying member, ascending / descending operation of the housing with the vertical needle selector as in the prior art This eliminates the problem that large vibrations occur with this, and the problem that the vertical needle and the vertical needle selector are unexpectedly disengaged due to this vibration. The reliability of operation) can be improved. And it becomes possible to speed up the operating speed of a needle selection device, and it can aim at the improvement of textile productivity.
[0084]
Moreover, in the needle selecting device for the jacquard machine according to the present invention, the vertical needle selector does not lock the vertical needle, but the locking member provided on the jacquard machine body side locks the vertical needle. Because it is a configuration, even if a problem occurs in the needle selection device during operation of the jacquard machine, the needle selection device can be removed quickly and easily, and the operation rate of the jacquard machine decreases due to the chocolate stop Can be suitably prevented.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing a needle selection mode of a needle selection device according to a first embodiment of the present invention, in which (a) is a state where a bottom plate is at a top dead center and a knife is at a bottom dead center; (B) shows a state where the bottom plate is lowered and the knife is raised, and (d) shows a state where the bottom plate is at the bottom dead center and the knife is at the top dead center.
FIG. 2 is a schematic side view showing a non-needle selection mode of the needle selection device according to the embodiment, in which (a) is a state where the bottom plate is at a top dead center and a knife is at a bottom dead center; The state where the bottom plate is lowered and the knife is raised, (D) shows the state where the bottom plate is at the bottom dead center and the knife is at the top dead center.
FIG. 3 shows a front view of the main part of the needle selection device of the embodiment.
4A and 4B are vertical needles according to the embodiment, where FIG. 4A is an overall perspective view, and FIG. 4B is a cross-sectional view taken along line AA of FIG.
FIG. 5 shows a side view of an essential part of a needle selection device according to a second embodiment of the present invention.
FIG. 6 shows an overall perspective view of a vertical needle of the same embodiment.
FIG. 7 is a cross-sectional plan view of the vertical needle and the vertical needle selector of the embodiment, wherein (a) is a swinging mode of the vertical needle selector in which both vertical needles can be selected; (B) shows the swinging mode of the vertical needle selector which makes it impossible to select any of the vertical needles.
FIG. 8 is a schematic side view showing a needle selection mode of the needle selection device according to the embodiment, in which (A) is a state where a pair of reciprocating knives is in the center of amplitude, and (B) is one of the reciprocating movements. A state in which the moving knife is at the top dead center and the other reciprocating knife is at the bottom dead center. (C) shows a state in which the pair of reciprocating knives is at the center of amplitude and one vertical needle is selected. .
FIG. 9 is a schematic side view showing a needle selection mode of the needle selection device according to the embodiment, wherein (b) shows that one reciprocating knife is at the bottom dead center and the other reciprocating knife is at the top dead center. Yes, a state where one vertical needle is still selected, (b) shows a state where a pair of reciprocating knives is at the center of amplitude and one vertical needle is still selected.
FIG. 10 is a graph of the state of the needle selection device and the vertical needle according to the embodiment, where (A) is a displacement-time diagram of one reciprocating knife, and (B) is the other reciprocating knife. (C) shows a voltage-time diagram applied to the piezoelectric element body, and (d) shows a warp opening width-time diagram.
FIG. 11 is a cross-sectional plan view of a vertical needle and a vertical needle selector according to a modification of the embodiment, in which (a) shows a swing of the vertical needle selector that enables one of the vertical needles to be selected. The movement mode, (B), shows the swinging mode of the vertical needle selector in which the other vertical needle can be selected.
FIG. 12 is a graph of the state of the needle selection device and the vertical needle according to the modification, where (A) is a displacement-time diagram of one reciprocating knife, and (B) is the other reciprocating knife. (C) shows a voltage-time diagram applied to the piezoelectric element body, and (d) shows a warp opening width-time diagram.
FIG. 13 shows a schematic side view of a first conventional needle selection device.
FIG. 14 is a schematic front view of a second conventional needle selection device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,31 ... Housing, 5,35 ... Vertical needle selector, 5a, 35a ... Action part, 5b, 35b ... Swing part, 6,36 ... Projection part, 6a, 36a ... Inclined surface, 6b, 36b ... Flat Surface, 8, 38 ... Piezoelectric element body, 13 ... Bottom plate, 43 ... Reciprocating knife, 17, 47 ... Knife, 20, 50 ... Vertical needle, 20a, 50a, 50b ... Upper end side, 23, 53 ... Buttocks, 24 , 57 ... Projection part, 26, 55 ... Locking part

Claims (5)

複数の縦針(20,…,50,…)を係止して往復動する搬送部材(13,43)と、該搬送部材(13,43)の進行方向に配置され、それぞれ縦針(20,50)の進路(P)に進出する位置(A)と縦針(20,50)の進路(P)から退避する位置(B)とに揺動可能な複数の縦針選針子(5,…,35,…)とを備えたジャカード機の選針装置において、前記縦針(20,50)の少なくとも先端側(20a,50a)が、該縦針(20,50)の進路(P)に進出した縦針選針子(5,35)との接触によって屈曲可能に形成され、しかも、該縦針(20,50)と搬送部材(13,43)とを相対変位させるべく、該縦針(20,50)の屈曲した部位(23,53)を係止可能な係止部材(17,47)が設けられてなり、前記縦針(20,50)又は前記縦針選針子(5,35)の何れか一方に、縦針(20,50)の進路(P)に対して傾斜する傾斜面(6a,36a)が形成され、他方に、該傾斜面(6a,36a)を摺動可能な突起部(24,57)が形成されてなり、傾斜面(6a,36a)を突起部(24,57)が摺動することにより、縦針(20,50)が屈曲するよう構成されてなることを特徴とするジャカード機の選針装置。  A conveying member (13, 43) that reciprocates by locking a plurality of vertical needles (20,..., 50,...) And a moving direction of the conveying member (13, 43). , 50) a plurality of vertical needle selectors (5) that can swing between a position (A) that advances into the path (P) and a position (B) that retracts from the path (P) of the vertical needles (20, 50). , ..., 35, ...), the needle (20, 50a) of at least the tip side (20a, 50a) of the vertical needle (20, 50) is the path of the vertical needle (20, 50) ( In order to relatively displace the vertical needle (20, 50) and the conveying member (13, 43), it is formed so as to be bendable by contact with the vertical needle selector (5, 35) advanced to P). A locking member (17, 47) capable of locking the bent portion (23, 53) of the vertical needle (20, 50) is provided, Either the vertical needle (20, 50) or the vertical needle selector (5, 35) has an inclined surface (6a, 36a) that is inclined with respect to the path (P) of the vertical needle (20, 50). On the other hand, protrusions (24, 57) that can slide on the inclined surfaces (6a, 36a) are formed, and the protrusions (24, 57) slide on the inclined surfaces (6a, 36a). A needle selection device for a jacquard machine, wherein the needles (20, 50) are configured to bend when moved. 前記係止部材(17,47)が、前記搬送部材(13,43)と接離する方向に往復動するよう構成されてなる請求項1記載のジャカード機の選針装置。  The needle selection device for a jacquard machine according to claim 1, wherein the locking member (17, 47) is configured to reciprocate in a direction in which the locking member (17, 47) contacts and separates from the conveying member (13, 43). 前記搬送部材(13,43)と前記係止部材(17,47)とが、逆位相で往復動するよう構成されてなる請求項2記載のジャカード機の選針装置。  The needle selecting device for a jacquard machine according to claim 2, wherein the conveying member (13, 43) and the locking member (17, 47) are configured to reciprocate in opposite phases. 複数の縦針(20,…,50,…)を係止して往復動する搬送部材(13,43)と、該搬送部材(13,43)の進行方向に配置され、それぞれ縦針(20,50)の進路(P)に進出する位置(A)と縦針(20,50)の進路(P)から退避する位置(B)とに揺動可能な複数の縦針選針子(5,…,35,…)とを備えたジャカード機の選針装置において、前記縦針(20,50)の少なくとも先端側(20a,50a)が、該縦針(20,50)の進路(P)に進出した縦針選針子(5,35)との接触によって屈曲可能に形成され、しかも、該縦針(20,50)と搬送部材(13,43)とを相対変位させるべく、該縦針(20,50)の屈曲した部位(23,53)を係止可能な係止部材(17,47)が設けられてなり、一の縦針選針子(35)に対し、前記搬送部材(43)、前記係止部材(47)及び前記縦針(50)がそれぞれ一対ずつ設けられ、しかも、一対の搬送部材(43,43)が、逆位相で往復動するよう構成され、前記縦針選針子(35)の先端部に、縦針(50)の進路(P)に対して傾斜する一対の傾斜面(36a,36a)が形成される一方、それぞれの縦針(50)に、傾斜面(36a)を摺動可能な突起部(57)が形成されてなり、一方の突起部(57)が一方の傾斜面(36a)を、そして、他方の突起部(57)が他方の傾斜面(36a)を摺動することにより、それぞれの縦針(50)が屈曲するよう構成されてなることを特徴とするジャカード機の複動式の選針装置。A conveying member (13, 43) that reciprocates by locking a plurality of vertical needles (20,..., 50,...) And a moving direction of the conveying member (13, 43). , 50) a plurality of vertical needle selectors (5) that can swing between a position (A) that advances into the path (P) and a position (B) that retracts from the path (P) of the vertical needles (20, 50). , ..., 35, ...), the needle (20, 50a) of at least the tip side (20a, 50a) of the vertical needle (20, 50) is the path of the vertical needle (20, 50) ( In order to relatively displace the vertical needle (20, 50) and the conveying member (13, 43), it is formed so as to be bendable by contact with the vertical needle selector (5, 35) advanced to P). A locking member (17, 47) capable of locking the bent portion (23, 53) of the vertical needle (20, 50) is provided, A pair of the conveying member (43), the locking member (47) and the vertical needle (50) are provided for each of the vertical needle selectors (35), and the pair of conveying members (43, 43). ) Are configured to reciprocate in opposite phases, and a pair of inclined surfaces (36a, 36a) are inclined at the tip of the vertical needle selector (35) with respect to the path (P) of the vertical needle (50). ) Is formed on each of the vertical needles (50), and a protrusion (57) that can slide on the inclined surface (36a) is formed. One protrusion (57) is formed on one inclined surface ( 36a), and the other protrusion (57) slides on the other inclined surface (36a) so that the respective vertical needles (50) are bent. Double-acting needle selection device. 前記傾斜面(36a,36a)が、先端側ほど互いに接近するよう形成されてなる請求項記載のジャカード機の複動式の選針装置。The double-acting needle selection device for a jacquard machine according to claim 4 , wherein the inclined surfaces (36a, 36a) are formed so as to approach each other toward the tip side.
JP2000380626A 2000-03-07 2000-12-14 Jacquard machine needle selector Expired - Lifetime JP4426719B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2000380626A JP4426719B2 (en) 2000-03-07 2000-12-14 Jacquard machine needle selector
PCT/JP2001/010963 WO2002048439A1 (en) 2000-12-14 2001-12-13 Needle selector of jacquard machine
AU2002222640A AU2002222640A1 (en) 2000-12-14 2001-12-13 Needle selector of jacquard machine
EP01270644A EP1357210A4 (en) 2000-12-14 2001-12-13 Needle selector of jacquard machine
CN 01820438 CN1289728C (en) 2000-12-14 2001-12-13 Needle selector of jacquard machine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000-61569 2000-03-07
JP2000061569 2000-03-07
JP2000380626A JP4426719B2 (en) 2000-03-07 2000-12-14 Jacquard machine needle selector

Publications (2)

Publication Number Publication Date
JP2001329445A JP2001329445A (en) 2001-11-27
JP4426719B2 true JP4426719B2 (en) 2010-03-03

Family

ID=26586911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000380626A Expired - Lifetime JP4426719B2 (en) 2000-03-07 2000-12-14 Jacquard machine needle selector

Country Status (1)

Country Link
JP (1) JP4426719B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5326149B1 (en) * 2012-12-18 2013-10-30 Css株式会社 Electronic jacquard machine
CN106987960B (en) * 2017-03-09 2018-05-25 董佶悦 A kind of electronic jacquard machine load analysis method
CN110777465B (en) * 2019-11-22 2024-04-26 浙江慧林智能设备有限公司 High-integration 16-needle electronic jacquard needle selecting device

Also Published As

Publication number Publication date
JP2001329445A (en) 2001-11-27

Similar Documents

Publication Publication Date Title
KR100905251B1 (en) Yarn feeder of weft knitting machine and method of feeding yarn for weft knitting machine
US9498564B2 (en) Shed-forming device for a weaving machine
JP4426719B2 (en) Jacquard machine needle selector
JP3568635B2 (en) Mechanism for selecting multiple aperture devices by flexure element means
WO2007023694A1 (en) Electronic jacquard device and cassette for electronic jacquard
JPH04131678U (en) Parallel twill control device used in looms equipped with a thread forming device
US5491989A (en) Yarn guide and yarn guide unit for a jacquard knitting machine
JP5719772B2 (en) Needle selector and selector of flat knitting machine
JP3670004B2 (en) Control device for yarn of textile machine
CS204981B2 (en) Apparatus for mechanical control of warp thread guides
US4134432A (en) Jacquard machine
WO2002048439A1 (en) Needle selector of jacquard machine
CN1653218B (en) Wireless thread controlling device
CN114127352B (en) Presser foot module for tufting machine
JP2001348752A (en) Double-acting needle selector of jacquard loom
JPH0139761B2 (en)
EP0770721B1 (en) Shed forming device for selecting shed forming means with the assistance of piezoelectric elements
JP5326149B1 (en) Electronic jacquard machine
RU1794116C (en) Weaving loom
RU2347017C2 (en) Compact pattern card using piezoelectric elements
CN115142183B (en) Needle selecting device and method of flat knitting machine
US6941977B2 (en) Jacquard machine
JPH07197359A (en) Shuttle compound needle
WO1989003441A1 (en) Warp thread control
JP3019072U (en) Sinker device

Legal Events

Date Code Title Description
RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20040706

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071003

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090508

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090626

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090807

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090930

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091113

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091211

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4426719

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121218

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121218

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131218

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term