JP5111224B2 - Cloth stretcher conveyor - Google Patents

Cloth stretcher conveyor Download PDF

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JP5111224B2
JP5111224B2 JP2008119594A JP2008119594A JP5111224B2 JP 5111224 B2 JP5111224 B2 JP 5111224B2 JP 2008119594 A JP2008119594 A JP 2008119594A JP 2008119594 A JP2008119594 A JP 2008119594A JP 5111224 B2 JP5111224 B2 JP 5111224B2
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cloth
expansion
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fabric
lifting
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JP2009268571A (en
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眞徳 近藤
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Purex Corp
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Description

本願発明は、布団包布のような２枚重ね部分を有する大面積の布類を吊上げ状態で展張させ、その展張吊上げ状態の布類を次工程側に搬送させるための布類展張搬送機に関するものである。尚、以下の説明では、展張吊上げ状態の布類を単に展張吊上げ布類ということがある。又、以下の説明では、本願の布類展張搬送機で処理すべき布類（布団包布）が主として中央部に丸ぐり部を有したものである関係で、該布類を額縁包布ということがある。   The present invention relates to a cloth spreading and conveying machine for spreading a large-area cloth having a two-ply portion such as a futon wrapping in a lifted state and transporting the stretched and lifted cloth to the next process side. Is. In the following description, the fabric in the stretched lifting state may be simply referred to as the stretched lifting fabric. In the following description, the cloth to be processed by the cloth spreading and conveying machine of the present application (futon wrapping) has a rounded portion mainly in the central portion, and the cloth is called a frame wrapping. Sometimes.

ランドリー工場においては、シーツや布団包布のような大面積布類を洗濯・乾燥後にプレス機でプレスしたり、折畳み機で折畳む作業が行われるが、その次工程装置（以下、プレス機で説明する）に布類を供給する際には、予め布類をきれいに展張させておく必要がある。   In laundry factories, large-area cloths such as sheets and futon wrapping are washed and dried and then pressed with a press or folded with a folding machine. The next process equipment (hereinafter referred to as a press) is used. When supplying the fabric to (explain), it is necessary to spread the fabric neatly in advance.

ところで、シーツや布団包布のような大面積の布類を展張させるとともに、その展張布類を次工程側に搬送させ得るようにした布類展張搬送機として、例えば特開平７−５４２６２号公報（特許文献１）に示されるものがある。この公知例の布類展張搬送機は、図１２〜図１５に示すように、布類Ｓの一辺の両端角部Ｓａ，Ｓａを左右の吊上チャック１１０，１１０で掴持し、所定高位置において各吊上チャック１１０，１１０を左右離間方向に移動させることによって、布類Ｓを展張吊上げ状態で保持し得るようになっている。尚、図１２の公知例では、展張すべき布類Ｓとして、中央部に丸ぐり部Ｔを有する額縁包布が採用されている。   By the way, as a cloth spreading / conveying machine capable of spreading a large-area cloth such as a sheet or a futon wrap and transporting the spreading cloth to the next process side, for example, JP-A-7-54262. There is what is shown by (patent document 1). As shown in FIGS. 12 to 15, the cloth spreading and conveying machine of this known example grips both end corners Sa and Sa on one side of the cloth S with the left and right lifting chucks 110 and 110, and a predetermined high position. The fabric S can be held in the stretched and lifted state by moving the lifting chucks 110 and 110 in the left and right separation directions. In the known example of FIG. 12, a frame wrap having a rounded portion T at the center is adopted as the fabric S to be spread.

又、この公知例の布類展張搬送機では、図１２に示す展張吊上げ状態の布類Ｓを、図１３に示すように各吊上チャック１１０から受渡し装置１０４の受取チャック１４０（符号１４０′のようにチャックが閉じる）で受け取り（布類が図１３のＳ1の状態になる）、続いて図１４に示すように受取チャック１４０が後退する。この状態では、布類Ｓ2の上下中間部付近が送込みローラ１３４に接触する。そして、吸気ボックス１３１内が吸気されるとともに、送込みローラ１３４が布類送込み方向に回転して、布類Ｓ2の下半部を符号Ｓ3で示す状態を経て符号Ｓ4で示すように吸気ボックス１３１内に吸引する（所定タイマー後、吸気ボックス１３１内の吸気は停止する）。その後、コンベア（吸着コンベア）１５１が走行するとともに受取チャック１４０が開放し、布類上縁部が符号Ｓ4ｂで示すようにコンベア１５１の始端部（水平部）上に移乗する。そして、コンベア１５１が走行することによって、布類Ｓ4の下部側が順次引上げられていき、該布類がコンベア１５１によって次工程（プレス工程）側に搬送される。 Further, in this known example of the fabric spreading and conveying machine, the fabric S in the stretched and lifted state shown in FIG. 12 is transferred from each lifting chuck 110 to the receiving chuck 140 (reference numeral 140 ′) of the delivery device 104 as shown in FIG. receiving (cloth chuck is closed) so that a state of S 1 in FIG. 13), followed by receiving the chuck 140 as shown in FIG. 14 is retracted. In this state, the vicinity of the upper and lower middle portions of the cloth S 2 contacts the feeding roller 134. Then, the inside of the intake box 131 is air, rotating in the direction infeed rollers 134 infeed fabrics, as shown at S 4 via the state showing the lower half of the cloth S 2 by reference numeral S 3 Then, the air is sucked into the intake box 131 (after a predetermined timer, the intake air in the intake box 131 stops). Thereafter, the conveyor (suction conveyor) 151 travels and the receiving chuck 140 is opened, and the upper edge of the cloth is transferred onto the start end (horizontal part) of the conveyor 151 as indicated by reference numeral S 4 b. Then, as the conveyor 151 travels, the lower side of the cloth S 4 is sequentially pulled up, and the cloth is conveyed to the next process (press process) side by the conveyor 151.

ところで、布類が展張吊上げ状態で、図１４のように布類Ｓ4の下部側が吸気ボックス１３１内に吸引される（布類の下部側にテンションがかかる）と、布類Ｓ4はかなりの展張状態になるものの、布類Ｙに小皺や波打ち部分（図１２の符号Ｙ）が残ることがある。そこで、この公知例の布類展張搬送機では、コンベア１５１の始端部の直下近傍で展張吊上げ布類Ｓ4の背面側に左右一対の布類背面拡張装置１０６，１０６を設けている。この各布類背面拡張装置１０６，１０６は、図１２に示すように左右にそれぞれ横向き姿勢で拡張ベルト１６１，１６１を有している。この各拡張ベルト１６１，１６１は、それぞれ前面側が左右外向きに走行するようになっている。又、各拡張ベルト１６１，１６１は、多数の小孔をあけた通気性のあるものを使用しており、該各拡張ベルト１６１，１６１の背面側に設けた吸気ボックス１６３内を吸気することにより、各拡張ベルト１６１，１６１の前面に布類の背面を吸引させ得る機能を有している。 Incidentally, in the state cloth is stretched lifting, the lower side of the cloth S 4 is drawn into the intake box 131 (according tension on the lower side of the cloth) as shown in Figure 14, the textiles S 4 considerable Although it is in a stretched state, a small wrinkle or a wavy portion (symbol Y in FIG. 12) may remain on the fabric Y. In view of this, in the known fabric spreading / conveying machine, a pair of left and right fabric rear surface expansion devices 106 and 106 are provided on the back side of the stretched lifting fabric S 4 in the vicinity immediately below the starting end of the conveyor 151. As shown in FIG. 12, each of the cloth rear surface expansion devices 106 and 106 has expansion belts 161 and 161 in a lateral orientation on the left and right. Each of the expansion belts 161 and 161 is configured such that the front side thereof travels left and right outward. In addition, each of the expansion belts 161 and 161 uses a breathable one having a large number of small holes. By sucking air in the intake box 163 provided on the back side of each of the expansion belts 161 and 161, The front surface of each of the expansion belts 161 and 161 has a function of sucking the back surface of the cloth.

そして、この各布類背面拡張装置１０６，１０６は、吸気ボックス１６３内が吸気されるとともに各拡張ベルト１６１，１６１の前面がそれぞれ左右外向きに走行し、そのとき布類Ｓ4の背面が各拡張ベルト１６１，１６１の前面に接触しながら引き上げられていき、該布類を順次左右各外方に拡張させるように機能する。 Then, the respective cloth back expansion device 106, 106 is the front of each extension belt 161, 161 with the air intake box 163 is the intake travels to the left and right outward respectively, then the back of the cloth S 4 each The cloth is pulled up while contacting the front surfaces of the expansion belts 161 and 161, and functions to expand the cloths sequentially to the left and right.

ところで、展張すべき布類が中央部に丸ぐり部Ｔを有する布類（額縁包布）Ｓでは、生地に表裏２枚重ね部分がある。そして、このように表裏２枚重ね生地を有する布類Ｓを上記公知例（図１２〜図１４）の布類展張搬送機で展張させる場合、展張吊上げ布類Ｓの背面側は各布類背面拡張装置１０６，１０６により左右に拡張させることができるものの、該展張吊上げ布類（額縁包布）Ｓの前面側を拡張させる（皺延ばしする）機能はほとんどない。従って、丸ぐり部Ｔの外側の布類前面に小皺や波打ち部分（図１２の符号Ｙ）が残り易くなる。   By the way, in the cloth (frame wrapping cloth) S in which the cloth to be stretched has the rounded portion T in the central portion, the cloth has two overlapping portions. When the cloth S having the two-sided fabrics is stretched by the cloth spreading / conveying machine of the known example (FIGS. 12 to 14), the back side of the stretched lifting cloth S is the back of each cloth. Although it can be expanded left and right by the expansion devices 106, 106, there is almost no function of expanding (stretching) the front side of the stretched lifting cloth (frame wrap) S. Therefore, a small wrinkle or a wavy portion (reference numeral Y in FIG. 12) tends to remain on the front surface of the cloth outside the rounded portion T.

又、表裏２枚重ね生地を有する布類（額縁包布）Ｓでは、２枚重ね部分の生地間（特に丸ぐり部Ｔの下部側）に空気が残って膨れたままになったり、図１５に鎖線図示するように丸ぐり部Ｔの下端縁Ｔａが重みで下方に垂れる（符号Ｔａ′）ことがあり、２枚重ね生地部分の膨らみや垂れ下がり部分（符号Ｔａ′）に波打ち部分ができ易くなる。尚、図１５に鎖線図示する丸ぐり部下端縁Ｔａの下方への垂れ下がり（符号Ｔａ′）は、展張吊上げ布類Ｓの下部が吸気ボックス１３１内に吸引されることでも起こる。   Further, in the case of cloth (frame wrapping) S having a double-sided fabric on the front and back sides, air remains between the two-layered fabric (especially the lower side of the rounded portion T), and may remain swollen. As shown by the chain line, the lower edge Ta of the rounded portion T may hang downward due to the weight (reference Ta ′), and it is easy to form a wavy part in the bulge or sag of the double-layered fabric portion (reference Ta ′). Become. Note that the downward hanging of the lower end edge Ta of the rounded portion Ta (shown by a chain line in FIG. 15) (symbol Ta ′) also occurs when the lower part of the stretched lifting cloth S is sucked into the intake box 131.

このように、図１２〜図１５に示す公知例の布類展張搬送機では、丸ぐり部Ｔを有する布類（額縁包布）Ｓを展張させるのに、布類背面は布類背面拡張装置１０６，１０６により比較的きれいに展張させ得るものの、２枚重ね部分の前面側に小皺や波打ち部（図１２の符号Ｙ）又は膨らみや垂れ下がり部（図１５の符号Ｔａ′）等の弛みが残り易くなる。そして、布類前面に弛みが残ったままで展張布類が後送されてプレス機でプレスされると、該弛み部分を折返し状態で押し潰して明確な折り皺が発生するという問題がある。このように折り皺の付いた布類では、見栄えが悪くなるとともに、顧客からの苦情が出ることになる。   As described above, in the known fabric spreading and conveying machine shown in FIGS. 12 to 15, the fabric rear surface is a fabric rear surface expansion device for spreading the fabric (frame wrapping) S having the rounded portion T. 106, 106 can be relatively neatly stretched, but slack such as a small wrinkle, a corrugated portion (symbol Y in FIG. 12), a bulge or a hanging portion (symbol Ta ′ in FIG. 15) or the like tends to remain on the front side of the two-layer overlapped portion Become. Then, when the stretch fabric is fed later and pressed with a press while the slack remains on the front surface of the fabric, there is a problem that the slack portion is crushed in a folded state and a clear crease occurs. In such a fabric with creases, the appearance of the cloth becomes worse and a complaint from the customer comes out.

尚、展張吊上げ布類Ｓが送り込まれていく途中で、図１５に示す丸ぐり部下端縁Ｔａの垂れ下がり部分Ｔａ′が拡張ベルト１６１，１６１部分を通過するが、その際にも布類前面の垂れ下がり部分Ｔａ′には拡張ベルト１６１による拡張機能は働かない。   In the middle of feeding the stretched lifting cloth S, the hanging part Ta ′ of the lower end edge Ta of the rounded part shown in FIG. 15 passes through the parts of the extension belts 161 and 161. The expansion function by the expansion belt 161 does not work in the hanging portion Ta ′.

そこで、本件出願人は、額縁包布を前面側もきれいに展張させるために、特願２００６−３０６１４１号の布類展張搬送機を提案している。この特願２００６−３０６１４１号の布類展張搬送機は、図１６及び図１７に示すものであるが、以下これを先願例という。   Therefore, the applicant of the present application has proposed a cloth spreading / conveying machine of Japanese Patent Application No. 2006-306141 in order to neatly spread the frame wrapping on the front side. The cloth spreading / conveying machine of Japanese Patent Application No. 2006-306141 is shown in FIGS. 16 and 17, and this is hereinafter referred to as a prior application example.

図１６及び図１７に示す先願例の布類展張搬送機には、展張吊上げ布類Ｓの背面側を左右外側に拡張させる左右一対の布類背面拡張装置２０６，２０６のほかに、該布類背面拡張装置２０６と協同して布類前面を左右に拡張させるための左右一対の前面押付装置２０７，２０７を有している。   The cloth spreading and conveying machine of the prior application example shown in FIGS. 16 and 17 includes, in addition to the pair of left and right cloth rear surface expanding devices 206 and 206 for expanding the rear surface side of the stretched lifting cloth S to the left and right outer sides. A pair of left and right front pressing devices 207 and 207 for expanding the front surface of the cloth to the left and right in cooperation with the rear surface expansion device 206 is provided.

この各前面押付装置２０７，２０７は、各背面拡張装置２０６，２０６の各拡張ベルト２６１，２６１の前面にある展張吊上げ布類Ｓの左右外側部寄り前面Ｓｃ，Ｓｃに摺接して該左右外側部寄り前面をそれぞれ強制的に左右外側に拡張させ得る強制拡張部材２７１と、該強制拡張部材２７１を正面視において展張吊上げ布類の左右外側部寄り前面Ｓｃに対面する対面位置と展張吊上げ布類の左右外端部Ｓｄ，Ｓｄより外側の退避位置との間で左右に移動させる左右進退装置２７２と、強制拡張部材２７１を拡張ベルト前面にある展張吊上げ布類の前面Ｓｃから離間する離間位置と該展張吊上げ布類の前面Ｓｃに接触する接触位置との間で前後に移動させる接離移動装置２７３とを備えている。   The front pressing devices 207 and 207 are in sliding contact with the front and rear surfaces Sc and Sc near the left and right outer portions of the extended lifting cloth S on the front surface of the expansion belts 261 and 261 of the rear expansion devices 206 and 206, respectively. A forcible expansion member 271 that can forcibly expand the front side of each side toward the left and right sides, a facing position of the forcible expansion member 271 facing the front side Sc near the left and right outer side of the stretched lifting cloth in a front view, and the stretched lifting cloth A left / right advance / retreat device 272 that moves left and right between the left and right outer end portions Sd and the retreat position outside the Sd, a separation position that separates the forcible expansion member 271 from the front surface Sc of the stretched lifting cloth on the front surface of the expansion belt, and A contact / separation moving device 273 that moves back and forth between the contact position contacting the front surface Sc of the stretched lifting cloth is provided.

左右の各強制拡張部材２７１には、それぞれ左右外側に走行するようにした拡張ベルト２７５をモータ２７６で駆動するようにしたものが使用されている。左右進退装置２７２には、左右に伸縮する伸縮シリンダ（図１７）が使用されている。接離移動装置２７３には、前後に伸縮する伸縮シリンダが使用されている。   For each of the left and right forced expansion members 271, an expansion belt 275 that is driven to the left and right outer sides is driven by a motor 276. The left / right advance / retreat device 272 uses a telescopic cylinder (FIG. 17) that expands and contracts to the left and right. The contact / separation moving device 273 uses a telescopic cylinder that expands and contracts forward and backward.

図１６及び図１７に示す先願例の布類展張搬送機では、上記各前面押付装置２０７，２０７が次のように機能する。尚、布類の供給前は、左右の各強制拡張部材２７１，２７１がそれぞれ外側の退避位置で且つ各拡張ベルト１６１，１６１に対して手前側の離間位置にある。   In the cloth spreading and conveying machine of the prior application example shown in FIGS. 16 and 17, the front pressing devices 207 and 207 function as follows. Note that before the supply of the cloths, the left and right forced expansion members 271 and 271 are in the retracted positions on the outside and in the separated positions on the front side with respect to the expansion belts 161 and 161, respectively.

そして、この先願例の布類展張搬送機でも、作業位置において布類（中央部に丸ぐり部Ｔを有する額縁包布Ｓ）の一辺の両端角部を捜し出し→丸ぐり部が前面（手前側）に位置する状態で該両端角部をそれぞれ投入チャックに掴持させ（図１６の符号Ｓ′の状態）→該各投入チャックが布類両端角部Ｓａ，Ｓａを掴持したまま所定高さまで上動し→布類両端角部Ｓａ，Ｓａを上方で待機している各受取チャック２２１，２２１に受け渡し（符号Ｓ″の状態）→各受取チャック２２１，２２１が左右離間方向に移動して布類を吊上げ状態で左右に展張させる（符号Ｓの状態）。   And even in the cloth spreading and conveying machine of this prior application example, at the working position, the corners of one side of the cloth (the frame wrap S having the rounded part T in the central part) are searched for → the rounded part is on the front side (front side) ) In the state where the both end corners are gripped by the feeding chucks (in the state indicated by reference numeral S ′ in FIG. 16) → the respective feeding chucks hold the cloth both end corners Sa and Sa to a predetermined height. Move upward → Deliver to the receiving chucks 221, 221 waiting at the upper and lower corners Sa, Sa of the cloth (state S ″) → Move the receiving chucks 221, 221 in the left and right separation directions A class is extended left and right in a suspended state (state of S).

続いて、その展張吊上げ布類Ｓの上縁部を搬送コンベア２５１（図１７）上に移乗させるが、このとき展張吊上げ布類が展張状態のままで後方（奥側）に移動して布類背面が左右の各拡張ベルト２６１，２６１の前面に接触し→その直後に左右の各強制拡張部材２７１，２７１がそれぞれ外側の退避位置から内側の対面位置に移動され→各接離移動装置２７３，２７３により各強制拡張部材２７１，２７１をそれぞれ展張吊上げ布類の左右各外側部寄り前面Ｓｃ，Ｓｃに接触させ→各強制拡張部材２７１，２７１がモータ２７６，２７６により布類の左右各外側部寄り前面Ｓｃ，Ｓｃをそれぞれ外側に拡張させる方向に駆動され→この状態で展張吊上げ布類の上縁部が搬送コンベア２５１によって引き取られていく（布類が展張状態のまま引き上げられる）。   Subsequently, the upper edge portion of the stretched lifting cloth S is transferred onto the conveyor 251 (FIG. 17). At this time, the stretched lifting cloth is moved to the rear (back side) while being in the stretched state. The rear surface comes into contact with the front surfaces of the left and right expansion belts 261 and 261. Immediately thereafter, the left and right forced expansion members 271 and 271 are moved from the outer retracted position to the inner facing position. 273, the forced expansion members 271 and 271 are brought into contact with the front surfaces Sc and Sc near the left and right outer portions of the stretched lifting cloth, respectively. → the forced expansion members 271 and 271 are moved toward the left and right outer portions of the cloth with the motors 276 and 276, respectively. Driven in the direction of extending the front surfaces Sc and Sc respectively outwards → In this state, the upper edge of the stretched lifting fabric is taken up by the conveyor 251 (the fabric is pulled in the stretched state). Be raised).

このとき、展張吊上げ布類Ｓの背面側が各拡張ベルト２６１，２６１で順次左右に展張される一方、左右各外側部寄り前面Ｓｃ，Ｓｃがそれぞれ強制拡張部材２７１，２７１で左右外側に引っ張られて、布類の左右各側部（表裏各生地間）の空気が排除される。   At this time, the back side of the stretched lifting cloth S is stretched to the left and right sequentially by the respective extension belts 261 and 261, while the front surfaces Sc and Sc closer to the left and right outer sides are pulled to the left and right outer sides by the forced expansion members 271 and 271 respectively. The air on the left and right sides of the fabric (between the front and back fabrics) is eliminated.

又、展張吊上げ布類の丸ぐり部下縁部Ｔａが拡張ベルト高さに差しかかったときには、各拡張ベルトによる背面側展張機能と各強制拡張部材による前面側展張機能とにより、丸ぐり部Ｔの下縁部分Ｔａが左右各外側に引っ張られる作用を受ける。   Further, when the lower edge Ta of the rounded lifting cloth is approaching the height of the extension belt, the back side extension function by each extension belt and the front side extension function by each forcible extension member, The lower edge portion Ta is subjected to the action of being pulled outward on the left and right sides.

さらに、展張吊上げ布類の丸ぐり部下縁部Ｔａが拡張ベルト２６１の高さに差しかかった時点で、各左右進退装置２７２，２７２がそれぞれ退避側に作動し、各強制拡張部材２７１，２７１を丸ぐり部下縁部の左右各外側部寄り位置に摺接しながら退避位置まで移動するが、この各強制拡張部材の移動時に、丸ぐり部下縁部Ｔａが左右各外側に引っ張られて、該丸ぐり部下縁部分が確実に緊張状態に伸展せしめられる。尚、退避位置まで後退した各強制拡張部材２７１，２７１は、それぞれ接離移動装置２７３，２７３により手前側の後退位置に戻されて、そこで次の布類展張作業時まで待機する。   Further, when the lower edge Ta of the rounded lifting cloth reaches the height of the expansion belt 261, the left / right advance / retreat devices 272, 272 are operated to the retract side, and the forced expansion members 271, 271 are moved. It moves to the retracted position while sliding in contact with the left and right outer side positions of the lower edge of the rounded part, but when this forcible expansion member moves, the lower edge Ta of the rounded part is pulled to the left and right outer sides, The subordinate edge is surely extended in tension. The forced expansion members 271 and 271 retracted to the retracted position are returned to the retracted position on the near side by the contact / separation moving devices 273 and 273, respectively, and wait until the next cloth spreading operation.

このように、先願例の布類展張搬送機を使用すれば、丸ぐり部を有した布類（額縁包布）であっても、表裏の各全面をきれいに展張させた状態でプレス工程側に搬送させることができる。   In this way, if the cloth spreading conveyor of the prior application example is used, even if the cloth has a rounded portion (frame wrapping), the front and back surfaces are neatly spread on the entire pressing process side. Can be conveyed.

特開平７−５４２６２号公報JP-A-7-54262

ところで、ランドリー工場では、サイズが異なる布類（額縁包布）が混在したものを処理する場合が多いが、図１６及び図１７に示す先願例の布類展張搬送機では、処理すべき布類Ｓのサイズが同じものを想定したものであり、その単一サイズの布類に応じて各強制拡張部材２７１，２７１を上記対面位置と上記退避位置との間で移動させ得るようしたものである。   By the way, in a laundry factory, there are many cases where cloths having different sizes (frame wrapping cloth) are mixed. However, in the cloth spreading and conveying machine of the prior application example shown in FIGS. It is assumed that the size of the class S is the same, and the forcible expansion members 271 and 271 can be moved between the facing position and the retracted position according to the single size cloth. is there.

従って、先願例の布類展張搬送機では、前面押付装置２０７，２０７を小サイズ布類に対応した位置に調整した状態で大サイズ布類を投入したとき、あるいは逆に該前面押付装置２０７，２０７を大サイズ布類に対応した位置に調整した状態で小サイズ布類を投入したときには、何れも各強制拡張部材２７１，２７１が布類サイズに適合しない位置に接触（又は移動）するようになり、展張作業が失敗したり、あるいは布類前面を十分に展張できなかったりするという問題が発生する。   Therefore, in the cloth spreading and conveying machine of the prior application example, when the large size cloth is put in a state where the front pressing devices 207 and 207 are adjusted to positions corresponding to the small size cloth, or conversely, the front pressing device 207 , 207 adjusted to a position corresponding to the large-sized cloth, and when the small-sized cloth is introduced, each of the forced expansion members 271 and 271 is brought into contact (or moved) to a position not matching the cloth size. As a result, there is a problem that the stretching work fails or the front surface of the cloth cannot be sufficiently stretched.

尚、上記先願例では、布類展張搬送機に布類サイズに応じて各強制拡張部材２７１，２７１をそれぞれ左右適正位置に調整するための位置調整装置（例えば伸縮シリンダ）を装備して、操作パネルから、「小」の位置調整スイッチを押すと強制拡張部材２７１が小サイズ布類に対応する位置に移動する一方、「大」の位置調整スイッチを押すと強制拡張部材２７１が大サイズ布類に対応する位置に移動するようにしておくことができる旨の記載がある。   In the above-mentioned prior application example, the cloth expanding and conveying machine is equipped with a position adjusting device (for example, a telescopic cylinder) for adjusting each of the forced expansion members 271 and 271 to the right and left proper positions according to the cloth size, When the “small” position adjustment switch is pressed from the operation panel, the forced expansion member 271 moves to a position corresponding to the small size cloth, while when the “large” position adjustment switch is pressed, the forced expansion member 271 is moved to the large size cloth. There is a description that it can be moved to a position corresponding to the class.

ところが、上記のように強制拡張部材２７１の位置調整を手動（位置調整スイッチ）で行えるようにした布類展張搬送機であっても、布類（額縁包布）のサイズが大小混在したものを処理する場合は、各布類を吊上げ展張状態にしないと布類サイズが判別できず、しかも布類サイズを作業員が目視により確認して、該布類サイズが現状の強制拡張部材２７１の位置に適合しない場合には、その都度各強制拡張部材２７１，２７１の位置を手動（位置調整スイッチ）で調整する必要がある。従って、この場合は、毎回の布類サイズ確認作業及び強制拡張部材２７１の位置調整作業が面倒になるとともに、それらの作業（布類サイズ確認作業及び強制拡張部材の位置調整作業）に時間がかかり、処理能率が非常に悪くなる。   However, even in the cloth spreading and conveying machine that allows the position adjustment of the forced expansion member 271 to be performed manually (position adjustment switch) as described above, the cloth (frame wrapping) size is mixed. In the case of processing, the cloth size cannot be determined unless each cloth is lifted and stretched, and the worker visually confirms the cloth size, and the cloth size is the position of the current forced expansion member 271. If it does not conform to the above, it is necessary to manually adjust the position of each of the forced expansion members 271 and 271 each time (position adjustment switch). Therefore, in this case, the cloth size confirmation work and the position adjustment work of the forced expansion member 271 are troublesome each time, and the work (cloth size confirmation work and the position adjustment work of the forced expansion member) takes time. , Processing efficiency will be very bad.

そこで、本願発明は、額縁包布のような２枚重ね部分がある布類でも表裏両面をきれいに展張させ得るとともに、布類サイズが大小混在したものを処理する場合であっても、その布類サイズを自動で検出し且つ各接触部材を自動で正確に位置調整し得るようにした布類展張搬送機を提供することを目的としている。   Therefore, the present invention can be used to spread both the front and back surfaces of a cloth having a two-layered portion, such as a frame wrapping cloth, and even when processing a cloth having a large and small cloth size. An object of the present invention is to provide a cloth spreading and conveying machine that can automatically detect the size and adjust the position of each contact member automatically and accurately.

本願発明は、上記課題を解決するための手段として次の構成を有している。   The present invention has the following configuration as means for solving the above problems.

［本願請求項１の発明］
本願請求項１の発明は、布団包布（額縁包布）のような大面積の布類の一辺の両端角部をそれぞれ掴持した状態で所定高位置まで吊上げ、その布類の各角部を掴持した左右一対のチャックをそれぞれ左右動装置で左右に離間させて布類を吊上げ状態で展張させた後、その展張吊上げ布類を次工程側に搬送させ得るようにした布類展張搬送機を対象にしている。 [Invention of Claim 1 of the Present Application]
The invention of claim 1 of the present application lifts the corners of one side of a large-sized fabric such as a futon wrap (frame wrap) to a predetermined height, and each corner of the fabric. A pair of left and right chucks that grip the fabric are separated from each other by a left and right movement device and the fabric is stretched in a lifted state, and then the stretched and stretched fabric can be transported to the next process side. The machine is targeted.

尚、この種の布類展張搬送機では、機枠前部の作業位置に投入装置が設置されており、該投入装置の各投入チャックに布類の一辺（長辺）の両端角部を掴持させた後、スタートボタンを押すと、各投入チャックが布類各角部を掴持したまま上動し、該布類各角部を機枠上部の中央位置で待機している左右一対の受取チャック（この受取チャックが特許請求範囲中のチャックとなる）に受け渡し、該各受取チャックを左右動装置で左右に離間させ得るようになっている。尚、左右動装置は、２基使用して各左右動装置でそれぞれ各受取チャックを作動させるようにしたものでもよく、あるいは単一の左右動装置で両受取チャックを同時に作動させるようにしたものでもよい。   In this type of cloth spreading and conveying machine, a feeding device is installed at the work position at the front of the machine frame, and each corner of one side (long side) of the cloth is held by each feeding chuck of the feeding device. After pressing the start button, each input chuck moves upward while gripping each corner of the fabric, and a pair of left and right waiting for each corner of the fabric at the center position on the upper part of the machine frame. It is delivered to a receiving chuck (this receiving chuck becomes a chuck in the claims), and each receiving chuck can be separated left and right by a left and right moving device. The left and right moving devices may be used in such a way that each receiving movement is operated by each of the left and right moving devices, or both receiving chucks are operated simultaneously by a single left and right moving device. But you can.

左右動装置には、サーボモータを使用している。このサーボモータは、機枠中央部の待機位置において布類各角部を掴持した各受取チャックを左右外側に移動させるとともに、布類上辺部が緊張した時点（所定以上の負荷がかかった時点）で作動停止するようになっている。そして、このサーボモータからの駆動量データ（受取チャックが機枠中央部の待機位置から左右外側の停止位置まで移動したときのサーボモータ駆動量データ）は、後述するようにコントローラに入力される。尚、このサーボモータ駆動量データは、処理しようとしている布類のサイズ（左右幅）を判定するのに利用されるものである。   A servo motor is used for the left-right motion device. This servo motor moves each receiving chuck that grips each corner of the cloth to the left and right outside at the standby position in the center of the machine frame, and when the upper side of the cloth is in tension (when a load exceeding a predetermined level is applied) ) Is stopped. The drive amount data from the servo motor (servo motor drive amount data when the receiving chuck moves from the standby position at the center of the machine frame to the left and right outer stop positions) is input to the controller as described later. The servo motor drive amount data is used for determining the size (left / right width) of the cloth to be processed.

又、本願発明の布類展張搬送機には、展張吊上げ布類の背面側に、該布類背面に摺接して布類背面側を左右外側に拡張させる拡張ベルトを有する左右一対の布類背面拡張装置を設ける一方、各拡張ベルトに対面する位置に、展張吊上げ布類の左右外側部寄り前面をそれぞれ各拡張ベルト側に押付ける左右一対の前面押付装置を配置している。   Further, the cloth spreading and conveying machine according to the present invention includes a pair of left and right cloth backs having an extension belt on the back side of the stretched lifting cloths and extending the back side of the cloths to the left and right sides in sliding contact with the back of the cloths. While the expansion device is provided, a pair of left and right front pressing devices that press the front surfaces near the left and right outer portions of the stretched lifting fabrics against the respective expansion belts are disposed at positions facing the respective expansion belts.

布類背面拡張装置の左右各拡張ベルトは、展張吊上げ状態にある布類の背面側で該展張吊上げ布類の上部寄り位置において、該展張吊上げ布類の幅中央部から左右に振り分けた位置に設置されている。又、該各拡張ベルトは、前面がほぼ鉛直面になる左右横長姿勢で設置されており、前面がそれぞれ左右外方向に走行するようになっている。尚、この布類背面拡張装置は、各拡張ベルトの前面に布類背面を吸引させ得る吸気機能を備えたものが好ましい。   The left and right expansion belts of the cloth back surface expansion device are arranged at positions near the top of the stretch lifting cloth on the back side of the cloth in the stretch lifting state, and are distributed to the left and right from the center of the width of the stretch lifting cloth. is set up. Each of the expansion belts is installed in a laterally long posture with the front surface being a substantially vertical surface, and the front surface travels in the laterally outward direction. In addition, this cloth back surface expansion device is preferably provided with an intake function capable of sucking the cloth back surface on the front surface of each expansion belt.

各前面押付装置は、各拡張ベルトの前面にある展張吊上げ布類の前面に接触する接触部材と、該接触部材を正面視において展張吊上げ布類の左右外側部寄り前面に対面する対面位置と展張吊上げ布類の左右外端部より外側の退避位置との間で左右に進退させる左右進退装置と、接触部材を拡張ベルト前面にある展張吊上げ布類の前面から離間する離間位置と該展張吊上げ布類の前面に接触する接触位置との間で前後に移動させる接離移動装置とをそれぞれ備えている。   Each front pressing device includes a contact member that contacts the front surface of the stretched lifting cloth on the front surface of each expansion belt, and a facing position that faces the front surface near the left and right outer portions of the stretched lifting cloth when viewed from the front. A left / right advance / retreat device that moves forward / backward from the left / right outer end of the lifting cloth to a left / right position, a spaced position that separates the contact member from the front surface of the extending lifting cloth on the front surface of the expansion belt, and the extending lifting cloth And a contact / separation moving device that moves back and forth between contact positions that contact the front surface of each kind.

各前面押付装置の接触部材は、この請求項１では、単に各拡張ベルトの前面にある展張吊上げ布類の前面に接触し得るものであればよいが、後述（請求項３）のように、各拡張ベルトの前面にある展張吊上げ布類の左右外側部寄り前面に摺接して該左右外側部寄り前面をそれぞれ強制的に左右外側に拡張させ得るもの（強制拡張部材）が好ましい。   In this claim 1, the contact member of each front pressing device may be any member that can simply contact the front surface of the stretched lifting cloth on the front surface of each expansion belt, but as described later (claim 3), It is preferable that the front surface of each extended belt on the front side of the extended lifting cloth is slidably brought into contact with the front surface near the left and right outer portions and the front surface near the left and right outer portions can be forcibly expanded to the left and right outer sides (forced expansion member).

各接触部材の設置位置は、処理すべき布類（額縁包布）のサイズによって位置決めされるが、上記対面位置では該各接触部材が当該サイズの展張吊上げ布類の左右外側部寄り前面に位置する一方、上記退避位置では該各接触部材が当該サイズの展張吊上げ布類の左右外端部より外側に位置するようになっている。   The position where each contact member is installed is determined by the size of the cloth to be processed (frame wrap). At the facing position, each contact member is positioned on the front side of the right and left outer portions of the stretched lifting cloth of the size. On the other hand, in the retracted position, the contact members are positioned outside the left and right outer ends of the stretched lifting cloth of the size.

前面押付装置の左右進退装置は、各接触部材の左右移動量を調整し得るものであるが、この左右進退装置には、サーボモータを使用することができる。尚、この左右進退装置は、各接触部材についてそれぞれ１つずつ設けてもよいが、単一の左右進退装置で両接触部材に共用するようにしたものでもよい。   The left and right advancing / retracting device of the front pressing device can adjust the amount of left / right movement of each contact member, and a servo motor can be used for the left / right advancing / retreating device. The left / right advance / retreat apparatus may be provided one for each contact member, but a single left / right advance / retreat apparatus may be used for both contact members.

左右の接離移動装置は、各接触部材をそれぞれ前後に移動させるものであるが、この各接離移動装置には例えば伸縮シリンダが使用できる。尚、この各接離移動装置は、左右進退装置により各接触部材とともに左右移動させ得るようになっている。   The left and right contact / separation devices move the respective contact members back and forth. For each contact / separation device, for example, a telescopic cylinder can be used. Each contact / separation moving device can be moved left and right together with each contact member by a left / right advance / retreat device.

そして、この各接離移動装置は、接触部材を後退移動（手前側に移動）させた状態では、該接触部材を拡張ベルト前面にある展張吊上げ布類の前面から離間させる一方、接触部材を前進移動（奥側に移動）させた状態では、該接触部材を拡張ベルト前面にある展張吊上げ布類の前面に接触させるように機能する。尚、接触部材が展張吊上げ布類の前面から離間した状態では、接触部材を左右に移動させても該接触部材が展張吊上げ布類に接触することがない。   Each contact / separation moving device moves the contact member forward while moving the contact member away from the front surface of the stretched lifting cloth on the front surface of the expansion belt when the contact member is moved backward (moved toward the front side). In the state of being moved (moved to the back side), the contact member functions to contact the front surface of the stretched lifting cloth on the front surface of the expansion belt. In the state where the contact member is separated from the front surface of the stretched lifting cloth, even if the contact member is moved to the left and right, the contact member does not contact the stretched lifting cloth.

又、本願請求項１の布類展張搬送機では、前記左右動装置のサーボモータで各チャックを布類上辺部が左右に緊張するまで離間させたときのサーボモータ駆動量データをコントローラに入力し、該コントローラにより左右進退装置に対して各接触部材をサーボモータ駆動量データに対応する移動量だけ移動させるような制御を行わせるようにしている。   In the cloth spreading and conveying machine according to claim 1 of the present application, the servo motor drive amount data when the chucks are separated by the servo motor of the left and right movement device until the upper side of the cloth is tensioned to the left and right is input to the controller. The controller controls the left / right advance / retreat apparatus to move each contact member by a movement amount corresponding to the servo motor drive amount data.

本願請求項１の布類展張搬送機は、次の順序で作動する。尚、布類の供給前は、左右の各接触部材がそれぞれ外側の退避位置で且つ拡張ベルトに対して手前側の後退位置にある。又、布類背面拡張装置の各拡張ベルトは、それぞれ作動させておく（拡張ベルト前面側がそれぞれ左右外向きに走行する）。   The cloth spreading and conveying machine according to claim 1 of the present application operates in the following order. Note that before the supply of the cloth, the left and right contact members are in the retracted position on the outside and in the retracted position on the near side with respect to the expansion belt. Further, each expansion belt of the cloth rear surface expansion device is operated (the front surface side of the expansion belt travels outward in the left and right directions).

この状態で、まず作業位置において布類（額縁包布）の一辺（長辺）の両端角部を捜し出し、丸ぐり部が前面（手前側）に位置する状態で該両端角部をそれぞれ投入チャックに掴持させる。その後、各投入チャックが布類両端角部を掴持したまま所定高さまで上動して、布類両端角部を機枠上方位置の中央部で待機している各受取チャックに受け渡し、続いて各受取チャックが左右動装置により左右離間方向に移動せしめられ、布類上辺部が緊張した時点で左右動装置のサーボモータが停止する。このとき各受取チャックは、中央部の待機位置からそれぞれ同スピードで左右離間方向に移動せしめられ、布類上辺部が緊張した状態では各受取チャックが機枠中央から左右等距離の位置に位置している。従って、吊上げ展張された布類の左右各端縁も機枠中央から左右等距離の位置に位置している。   In this state, first, in the working position, search for both corners of one side (long side) of the cloth (frame wrap), and put both corners in the state where the rounded part is located on the front (front side). To grab. After that, each input chuck moves up to a predetermined height while holding the both corners of the cloth, and passes the corners of the cloth to each receiving chuck waiting at the central portion above the machine frame. Each receiving chuck is moved in the left-right separation direction by the left-right movement device, and the servo motor of the left-right movement device stops when the upper side of the cloth is in tension. At this time, each receiving chuck is moved in the left and right separation direction at the same speed from the central standby position, and each receiving chuck is positioned at an equal distance from the center of the machine frame when the upper side of the cloth is in tension. ing. Accordingly, the left and right edges of the fabric that is lifted and stretched are also located at an equal distance from the center of the machine frame.

ところで、各受取チャックの左右離間移動は左右動装置のサーボモータで行われるが、該各受取チャックを中央部の待機位置から左右離間停止位置まで移動させたときに、該サーボモータの駆動量データがコントローラに入力される。又、この布類展張搬送機で大小サイズが混在した布類を処理する場合は、該布類サイズによって布類上辺部の展張時に各受取チャックの左右離間移動距離が変化するが、この請求項１の布類展張搬送機では、毎回の布類上辺部展張時に当該処理布類のサイズに応じたサーボモータ駆動量データがコントローラに入力される。   By the way, the left and right separation movement of each receiving chuck is performed by a servo motor of a lateral movement device. When each receiving chuck is moved from the standby position in the central portion to the left and right separation stop position, the drive amount data of the servo motor Is input to the controller. Further, in the case of processing a cloth having a large and a small size with this cloth spreading and conveying machine, the distance to the left and right of each receiving chuck changes when the upper side of the cloth is stretched depending on the cloth size. In one cloth spreading and conveying machine, servo motor drive amount data corresponding to the size of the processing cloth is input to the controller at every time the cloth upper side is stretched.

尚、各受取チャックによる布類上辺部の展張時には、左右の各接触部材が展張吊上げ布類の左右各外端部よりそれぞれ外側の退避位置にあり、該布類が左右に展張されるときに該布類の左右各外端部が各接触部材に接触する（絡まる）ことがない。又、この状態では、展張吊上げ布類の上部は、左右の受取チャックの引張力によりかなりの緊張状態で伸展されているので、表裏各生地がほとんど接合している（表裏各生地間に空気がほとんど入っていない）が、展張吊上げ布類の左右各側部及び下部は表裏各生地間に空気が入って前面生地が膨らんでいる場合が多い（特に、丸ぐり部の下端縁部分は生地の自重で垂れ下がることが多々ある）。   When the upper side portion of the cloth is stretched by each receiving chuck, the left and right contact members are at the retracted positions outside the left and right outer ends of the stretched lifting cloth, and the cloth is stretched left and right. The left and right outer end portions of the cloth do not come into contact (entangle) with each contact member. In this state, the upper parts of the stretched lifting cloths are stretched in a considerable tension state by the pulling force of the left and right receiving chucks, so that the fabrics on the front and back sides are almost joined together (air flows between the fabrics on the front and back sides). There are many cases where the fabric on the left and right sides and the lower part of the stretched lifting fabric is filled with air between the front and back fabrics, and the front fabric is often swollen. Often hangs under its own weight).

続いて、その展張吊上げ布類の上縁部を搬送コンベア上に移乗させるが、このとき展張吊上げ布類が展張状態のままで後方（奥側）に移動して布類背面が左右の各拡張ベルトの前面（左右外側に走行している）に接触する。そして、その直後に左右の各接触部材が左右進退装置（サーボモータ）によりそれぞれ外側の退避位置から内側の対面位置に移動されるが、該各接触部材の内側移動量（左右進退装置の作動量）は、布類上辺部の展張時の上記サーボモータ駆動量データ（布類サイズデータ）に基いて発せられるコントローラからの制御信号で決定される。従って、展張吊上げ布類のサイズに拘わらず、各接触部材がそれぞれ展張吊上げ布類の左右各外側部寄り前面に正確に対面する位置まで移動せしめられる。   Next, the upper edge of the stretched fabric is transferred onto the conveyor. At this time, the stretched fabric is moved to the rear (back side) while being stretched, and the fabric back is expanded to the left and right. Contact the front of the belt (running to the left and right outside). Immediately after that, the left and right contact members are moved from the outer retracted position to the inner facing position by the left / right advance / retreat device (servo motor), respectively. ) Is determined by a control signal from the controller that is generated based on the servo motor drive amount data (cloth size data) when the upper side of the cloth is stretched. Therefore, regardless of the size of the stretched lifting cloth, each contact member can be moved to a position that accurately faces the front surfaces of the right and left outer portions of the stretched lifting cloth.

その後、各接離移動装置により各接触部材をそれぞれ展張吊上げ布類の左右各外側部寄り前面に接触させるが、このとき接触部材と拡張ベルトの間で展張吊上げ布類の左右各外側部寄り部分が軽く挟圧されている。   Thereafter, each contact member is brought into contact with the front surfaces near the left and right outer portions of the stretched lifting cloths by the respective contact / separation moving devices, but at this time, the portions near the left and right outer portions of the stretched lifting cloths between the contact members and the expansion belt. Is lightly pinched.

この状態で展張吊上げ布類の上縁部が搬送コンベアによって引き取られていく（布類が展張状態のまま引き上げられる）が、それに伴って展張吊上げ布類の背面側が各拡張ベルトで順次左右に展張される一方、左右各外側部寄り前面がそれぞれ接触部材で軽く押圧されているので、布類の左右各側部（表裏各生地間）の空気が排除される。   In this state, the upper edge of the stretched lifting cloth is taken up by the conveyor (the cloth is pulled up in the stretched state). On the other hand, since the front surfaces near the left and right outer portions are lightly pressed by the contact members, the air on the left and right sides of the fabric (between the front and back fabrics) is excluded.

そして、展張吊上げ布類の丸ぐり部下縁部が拡張ベルト高さに差しかかった時点で、左右進退装置が退避側に作動し、各接触部材を丸ぐり部下縁部の左右各外側部寄り位置に摺接しながら退避位置まで移動する。このとき、各接触部材の外側移動に伴って丸ぐり部下縁部が左右各外側に引っ張られ、該丸ぐり部下縁部分が確実に緊張状態に伸展せしめられる。尚、退避位置まで後退した各接触部材は、それぞれ接離移動装置により手前側の後退位置に戻されて、そこで次の布類展張作業時まで待機する。   When the lower edge of the rounded lifting cloth reaches the height of the expansion belt, the left / right advancement / retraction device operates to the retracting side, and each contact member is positioned closer to the left and right outer sides of the lower edge of the rounding part. It moves to the retreat position while sliding on. At this time, the lower edge of the rounded portion is pulled left and right as the contact members move outward, and the lower edge of the rounded portion is surely extended in a tension state. Each contact member retracted to the retracted position is returned to the retracted position on the near side by the contact / separation moving device, and waits for the next cloth spreading operation.

このように、本願請求項１の布類展張搬送機を使用すれば、丸ぐり部を有した布類（額縁包布）であっても、表裏の各全面をきれいに展張させた状態でプレス工程側に搬送させることができる。又、サイズが異なる布類が混在している場合であっても、各受取チャックで布類上辺部を左右に展張させる際に、左右動装置（サーボモータ）の駆動量データをコントローラに入力することで当該処理中の布類のサイズ（左右幅）を自動で検出でき、該サーボモータ駆動量データ（布類サイズデータ）に基いてコントローラからの制御信号で各接触部材を展張吊上げ布類の左右外側部寄り前面のそれぞれ正確位置に自動で対面させることができる。   Thus, if the cloth spreading and conveying machine according to claim 1 of the present application is used, even in the case of a cloth having a rounded portion (frame wrapping), the pressing process is performed in a state where the entire front and back surfaces are neatly spread. Can be transported to the side. In addition, even when cloths of different sizes are mixed, when the upper side of the cloth is extended to the left and right by each receiving chuck, the drive amount data of the left / right movement device (servo motor) is input to the controller. Thus, the size (left / right width) of the cloth being processed can be automatically detected, and each contact member is extended by the control signal from the controller based on the servo motor drive amount data (cloth size data). It is possible to automatically face each accurate position on the front side near the left and right outer portions.

［本願請求項２の発明］
本願請求項２の発明は、上記請求項１の布類展張搬送機において、左右進退装置は単一のサーボモータで両接触部材を同時に左右逆側に移動させるようにしていることを特徴としている。 [Invention of claim 2 of the present application]
The invention according to claim 2 of the present application is characterized in that in the cloth spreading and conveying machine according to claim 1, the left / right advance / retreat apparatus moves both contact members to the left and right sides simultaneously by a single servo motor. .

この請求項２で使用される左右進退装置には、左右に長い間隔をもった状態で単一ベルト（無端ベルト）を巻掛けし、該単一ベルトを単一のサーボモータで駆動し得るようにしたものを使用しており、各接触部材を該単一ベルトに対して同時に左右逆側に移動するように取付けている。即ち、単一ベルト（無端ベルト）は、サーボモータによる駆動時に右走行する部分と左走行する部分とがあり、各接触部材を単一ベルトの相互に逆向きに走行する部分に取付けることによって、２つの接触部材が相互に逆向きで同時に移動するようにしている。   The left and right advance / retreat apparatus used in claim 2 is configured such that a single belt (endless belt) is wound with a long interval left and right, and the single belt can be driven by a single servo motor. In this case, each contact member is attached to the single belt so as to move to the left and right sides simultaneously. That is, the single belt (endless belt) has a portion that travels to the right and a portion that travels to the left when driven by the servo motor, and by attaching each contact member to a portion that travels in the opposite direction of the single belt, The two contact members are moved in opposite directions at the same time.

従って、この請求項２の場合は、単一の左右進退装置で両接触部材を同時に作動させることができる。   Therefore, in the case of the second aspect, both contact members can be simultaneously operated by a single left / right advance / retreat apparatus.

［本願請求項３の発明］
本願請求項３の発明は、上記請求項１又は２の布類展張搬送機において、各接触部材は、各布類背面拡張装置の各拡張ベルトの前面にある展張吊上げ布類の左右外側部寄り前面に摺接して該左右外側部寄り前面をそれぞれ強制的に左右外側に拡張させ得る強制拡張部材を使用していることを特徴としている。 [Invention of claim 3 of the present application]
The invention of claim 3 of the present application is the cloth stretcher / conveyor according to claim 1 or 2, wherein each contact member is closer to the left and right outer sides of the stretch lifting cloth on the front surface of each expansion belt of each cloth rear surface expansion device. It is characterized in that a forcible expansion member is used that can slide in contact with the front surface and forcibly expand the front surface near the left and right outer portions to the left and right outer sides.

この請求項３で使用される各接触部材（強制拡張部材）としては、展張吊上げ布類の左右外側部寄り前面に摺接して該左右外側部寄り前面をそれぞれ強制的に左右外側に拡張させる機能を有するものであれば、適宜の構成のものが採用できる。尚、該各接触部材（強制拡張部材）としては、例えばそれぞれ左右外側に走行するようにした拡張ベルトを使用したもの（以下に示す本願実施例のもの）、又は複数個のローラを縦向き姿勢で並置して該各ローラの奥面側がそれぞれ左右外側に回転するようにしたもの、あるいは横向き螺旋ロールで布類に対して左右外向きの展張機能を有したもの、等が採用できる。   Each contact member (forced expansion member) used in claim 3 has a function of slidingly contacting the front surface near the left and right outer portions of the stretched lifting cloth and forcibly expanding the front surfaces near the left and right outer portions respectively. If it has, it can employ | adopt the thing of an appropriate structure. In addition, as each contact member (forced expansion member), for example, one using an expansion belt that is configured to travel to the left and right outer sides (in the present embodiment shown below), or a plurality of rollers in a vertical orientation Can be employed such that the rear surface side of each roller rotates to the left and right sides, or a lateral spiral roll having a laterally outwardly extending function with respect to the cloth.

そして、この請求項３のように、接触部材に強制拡張部材を使用したものでは、該各接触部材（強制拡張部材）を布類の左右外側部寄り前面に接触させた状態で作動させると、該布類の左右外側部寄り前面をそれぞれ強制的に外側に押す作用が働く。   And, as in this claim 3, in the case where the forcible expansion member is used for the contact member, when the respective contact members (forced expansion members) are operated in contact with the front surfaces near the left and right outer portions of the cloths, The action of forcibly pushing the front surfaces of the fabrics near the left and right outer portions to the outside works.

［本願請求項１の発明の効果］
本願請求項１の布類展張搬送機によれば、展張吊上げ布類を搬送コンベア側に送り込む過程で、布類背面拡張装置により布類背面を左右に展張させ得るとともに、前面押付装置の接触部材で布類前面をきれいに展張させ得るようになっているので、中央部に丸ぐり部を有した布類であってもその表裏両面をそれぞれきれいに（小皺や波打ち部分や膨らみ部分がない状態で）展張させることができ、仕上がり精度の良好な展張布類に加工することができるという効果がある。 [Effect of the invention of claim 1 of the present application]
According to the cloth spreading and conveying machine of claim 1 of the present application, in the process of sending the stretched and lifted cloth to the conveyor side, the cloth back surface can be extended to the left and right by the cloth back surface expanding device, and the contact member of the front pressing device. Since the front of the fabric can be neatly spread out, even the fabric with a rounded portion in the center, clean both front and back sides (with no wrinkles, wavy portions, or swollen portions) There is an effect that it can be stretched and processed into stretch fabrics with good finishing accuracy.

又、この請求項１の布類展張搬送機では、布類上辺部の展張時におけるサーボモータ駆動量データに基いてコントローラで布類サイズ（左右幅）を自動で検出でき、コントローラからの制御信号で各接触部材を該サーボモータ駆動量データに対応する移動量だけ移動させるようにしている。従って、当該処理中の布類のサイズ（左右幅）に応じて各接触部材を展張吊上げ布類の左右外側部寄り前面のそれぞれ正確位置に自動で対面させることができ、サイズが異なる布類が混在している場合であっても、自動で能率よく（ハイスピードで）布類展張作業が行えるという効果がある。   In the cloth spreading and conveying machine according to claim 1, the cloth size (left and right width) can be automatically detected by the controller based on the servo motor drive amount data when the upper side of the cloth is stretched. Thus, each contact member is moved by a movement amount corresponding to the servo motor drive amount data. Therefore, according to the size of the cloth being processed (left and right width), each contact member can be automatically faced to the exact position on the front side of the right and left outer sides of the stretched and lifted cloth. Even if they are mixed, there is an effect that the cloth can be extended automatically and efficiently (at high speed).

［本願請求項２の発明の効果］
本願請求項２の発明では、上記請求項１の布類展張搬送機において、左右進退装置は単一のサーボモータで両接触部材を同時に左右逆側に移動させるようにしているので、単一の左右進退装置で両接触部材を同時に作動させることができる。 [Effect of the invention of claim 2 of the present application]
In the invention of claim 2 of the present application, in the cloth spreading and conveying machine of claim 1, the left / right advance / retreat apparatus moves both contact members to the left and right sides simultaneously with a single servo motor. Both contact members can be actuated simultaneously by the left / right advance / retreat apparatus.

従って、この請求項２の布類展張搬送機では、上記請求項１の効果に加えて、単一の左右進退装置を両接触部材の進退操作に共用できるので、左右進退装置の構成を簡略化できるという効果がある。   Therefore, in the cloth spreading and conveying machine according to the second aspect, in addition to the effect of the first aspect, since a single left / right advance / retreat apparatus can be shared for the advance / retreat operation of both contact members, the configuration of the left / right advance / retreat apparatus is simplified. There is an effect that can be done.

［本願請求項３の発明の効果］
本願請求項３の発明では、上記請求項１又は２の布類展張搬送機において、各接触部材として、展張吊上げ布類の左右外側部寄り前面をそれぞれ強制的に左右外側に拡張させ得る強制拡張部材を使用しているので、各接触部材（強制拡張部材）が布類の左右外側部寄り前面に接触したときに該布類の左右外側部寄り前面をそれぞれ強制的に外側に拡張させる作用が働く。 [Effect of the invention of claim 3 of the present application]
In the invention according to claim 3 of the present application, in the cloth spreading / conveying machine according to claim 1 or 2, as each contact member, the front side closer to the left and right outside portions of the stretched lifting cloth can be forcibly expanded to the left and right outside respectively. Since the member is used, when each contact member (forced expansion member) comes into contact with the front surface near the left and right outer portions of the cloth, the front surface near the left and right outer portions of the cloth is forcibly expanded outward. work.

従って、この請求項３の布類展張搬送機には、上記請求項１又は２の効果に加えて、丸ぐり部の周囲全面を一層きれいに展張させることができ、しかも垂れ皺が残り易い丸ぐり部の下端縁もきれいに展張させることができるという効果がある。   Therefore, in addition to the effect of the first or second aspect, the cloth extending and conveying machine according to the third aspect can stretch the entire surface of the rounded portion more neatly, and moreover, the drooping wrinkles easily remain. There is an effect that the lower end edge of the part can be neatly expanded.

以下、図１〜図１１を参照して本願実施例の布類展張搬送機を説明する。尚、本願実施例の布類展張搬送機は、シーツのような１枚ものの布類も何ら問題なく展張させることができるが、特に中央部に丸ぐり部を有する布団包布（額縁包布）のような布類であって、しかもサイズが異なる布類が混在したものを順次展張させるのに適したものである。   Hereinafter, with reference to FIGS. 1 to 11, the fabric spreading and conveying machine of the present embodiment will be described. In addition, the cloth spreading and conveying machine according to the embodiment of the present invention can spread a single piece of cloth such as a sheet without any problem, but in particular, a futon wrapping (frame wrapping) having a rounded portion at the center. It is suitable for sequentially spreading fabrics having different sizes and having different sizes.

まず、この実施例の布類展張搬送機の基本構成を図１〜図３を参照して説明する。この布類展張搬送機は、投入装置１と、左右展張装置２と、吸引装置３と、受渡し装置４と、搬送装置５と、布類背面拡張装置６と、布類前面展張用の前面押付装置７，７とを有している。   First, the basic configuration of the fabric spreading and conveying machine of this embodiment will be described with reference to FIGS. The cloth spreading and conveying machine includes a loading device 1, a left and right spreading device 2, a suction device 3, a delivery device 4, a conveying device 5, a cloth rear surface expanding device 6, and a front pressing for cloth front surface stretching. Devices 7 and 7.

投入装置１は、展張すべき布類Ｓの一辺（長辺）の両端角部Ｓａ，Ｓａを掴持する一対の投入チャック１１，１１を有し、該各投入チャック１１，１１を昇降装置１２（図３）で上下動させ得るようにしたものである。尚、昇降装置１２にはロッドレスシリンダが使用されている。   The throwing device 1 has a pair of throwing chucks 11 and 11 for gripping both end corners Sa and Sa of one side (long side) of the cloth S to be stretched. (Fig. 3) can be moved up and down. A rodless cylinder is used for the lifting device 12.

各投入チャック１１，１１は、人の肩幅程度の間隔で左右に並置されている。そして、この各投入チャック１１，１１は、昇降装置１２により投入作業高さとなる低位置（図１、図３の高さ）と布類全体を吊下げ得る高位置（布類の掴持部分を後述の受取チャック２１に受け渡し得る高さ）との間で上下動せしめられる。そして、低位置において、布類の一辺（長辺）の両端角部Ｓａ，Ｓａを各投入チャック１１，１１で掴持させた後（布類が図１の符号Ｓ′の状態となる）、昇降装置１２で受け渡し高さまで上昇せしめられる。   The input chucks 11 and 11 are juxtaposed to the left and right at intervals of about the shoulder width of a person. Each of the feeding chucks 11 and 11 has a low position (height in FIGS. 1 and 3) which is the height of the feeding operation by the lifting device 12 and a high position (a cloth holding portion of the cloth) where the entire cloth can be suspended. And a height that can be transferred to a receiving chuck 21 described later). Then, at the low position, after both end corners Sa and Sa of the cloth are held by the respective input chucks 11 and 11 (the cloth is in a state indicated by reference sign S ′ in FIG. 1). It is raised to the transfer height by the lifting device 12.

尚、この実施例では、投入装置１は左右に２基設けており、何れの投入装置１，１からでも布類を投入することができるようになっている。又、各投入装置１，１は、待機状態では、図１に示すように機枠１０の幅中心から左右に振り分けた各位置に位置しているが、布類掴持後に上動する際には、機枠１０の幅中心位置に移動するようになっている。   In this embodiment, two feeding devices 1 are provided on the left and right sides so that cloths can be fed from any of the feeding devices 1 and 1. Further, in the standby state, each of the loading devices 1 and 1 is located at each position distributed left and right from the center of the width of the machine frame 10 as shown in FIG. Is moved to the center position of the width of the machine casing 10.

左右展張装置２は、所定高位置において投入装置１の各投入チャック１１，１１から布類の両端角部Ｓａ，Ｓａをそれぞれ受け取る一対の受取チャック２１，２１を有し、該各受取チャック２１，２１をそれぞれ左右動装置２２，２２で左右方向に移動させ得るようにしたものである。   The left and right extension device 2 has a pair of receiving chucks 21 and 21 that receive both end corners Sa and Sa of the cloth from the respective input chucks 11 and 11 of the input device 1 at a predetermined height position. 21 can be moved in the left-right direction by the left and right moving devices 22, 22, respectively.

各左右動装置２２，２２には、それぞれサーボモータ２３，２３が使用されており、該各サーボモータ２３，２３でそれぞれベルト（タイミングベルト）２４，２４を可逆的に走行させ得るようになっている。   Servo motors 23 and 23 are used for the left and right moving devices 22 and 22, respectively, so that the belts (timing belts) 24 and 24 can be reversibly run by the servo motors 23 and 23, respectively. Yes.

各受取チャック２１，２１は、各左右動装置２２，２２のそれぞれのベルト２４，２４に固定されていて、該各ベルト２４，２４をサーボモータ２３，２３で走行させることによって各受取チャック２１，２１が同時に左右近接・離間方向に作動するようになっている。   The respective receiving chucks 21 and 21 are fixed to the respective belts 24 and 24 of the respective left and right moving devices 22 and 22, and the respective receiving chucks 21 and 21 are caused to run by the servo motors 23 and 23. 21 is simultaneously operated in the right and left proximity and separation directions.

又、各受取チャック２１，２１は、待機状態では図１及び図２に示すように機枠１０の幅中央部において投入装置１の各投入チャック１１，１１の間隔と同間隔で待機しており、布類の両端角部Ｓａ，Ｓａを受け取った後（図１のＳ″の状態）、左右動装置２２，２２により布類の上辺部Ｓｂが緊張するまで左右外側に移動せしめられる（布類Ｓが図１の展張吊上げ状態となる）。そして、各左右動装置２２，２２のサーボモータ２３，２３は、布類上辺部Ｓｂが緊張した時点（所定以上の負荷がかかった時点）で作動停止するようになっている。尚、各左右動装置２２，２２による各受取チャック２１，２１の移動スピードは等速であり、各受取チャック２１，２１が機枠中央部寄りの待機位置から布類上辺部が緊張するまで移動する距離Ｌ，Ｌ（図１）は同じとなる。   In the standby state, the receiving chucks 21 and 21 are waiting at the same interval as the interval between the input chucks 11 and 11 of the input device 1 in the center of the width of the machine frame 10 as shown in FIGS. After receiving both corners Sa and Sa of the fabric (state S ″ in FIG. 1), the left and right moving devices 22 and 22 move the fabric to the left and right sides until the upper side Sb of the fabric is tensioned (clothes). S is in the extended lifting state of Fig. 1. And the servo motors 23, 23 of the left and right movement devices 22, 22 are activated when the cloth upper side Sb is in tension (when a load exceeding a predetermined level is applied). The moving speeds of the receiving chucks 21 and 21 by the left and right moving devices 22 and 22 are constant, and the receiving chucks 21 and 21 are moved from the standby position near the center of the machine frame. The distance to move until the upper side of the class is tense , L (FIG. 1) is the same.

吸引装置３（図３）は、受取チャック２１，２１が左右移動する部分の下方位置に吸気ボックス３１を設けるとともに、該吸気ボックス３１内の空気を吸気ファン３３で吸引し得るものが採用されている。吸気ボックス３１と吸気ファン３３とを連続させる吸気通路３２中には、切換ダンパー３６が設けられており、該切換ダンパー３６が図３の鎖線図示する符号３６′の側に位置するときに、吸気ボックス３１内が吸気ファン３３によって吸引されるようになっている。又、吸気ボックス３１の前壁上端部には、左右２本の送込みローラ３４，３４が設けられている。この各送込みローラ３４，３４は、それぞれモータ３５，３５によって所定タイミングで送込み方向（図３の右回転方向）に回転せしめられる。   As the suction device 3 (FIG. 3), an intake box 31 is provided at a position below the portion where the receiving chucks 21 and 21 move left and right, and the suction fan 33 can suck the air in the intake box 31 with the intake fan 33. Yes. A switching damper 36 is provided in the intake passage 32 that connects the intake box 31 and the intake fan 33. When the switching damper 36 is located on the side of the reference numeral 36 'shown in FIG. The inside of the box 31 is sucked by the intake fan 33. In addition, at the upper end of the front wall of the intake box 31, two left and right feeding rollers 34, 34 are provided. The feeding rollers 34 and 34 are rotated in the feeding direction (in the right rotation direction in FIG. 3) at predetermined timings by motors 35 and 35, respectively.

そして、この吸引装置３は、布類Ｓが展張吊上げ状態において、送込みローラ３４を送込み方向に回転させるとともに、吸気ボックス３１内を吸引することにより、展張吊上げ状態の布類Ｓの下部側を送込みローラ３４を乗り越えて吸気ボックス３１内に吸引し、そのとき布類の下部側にテンション作用が働いて、展張吊上げ状態の布類Ｓを下方に展張させる機能が発生する。   The suction device 3 rotates the feeding roller 34 in the feeding direction and sucks the inside of the intake box 31 when the fabric S is in the stretched and lifted state, thereby lowering the lower side of the fabric S in the stretched and lifted state. Over the feed roller 34 and sucked into the air intake box 31. At that time, a tension action acts on the lower side of the cloth, and the function of causing the cloth S in the stretched and lifted state to stretch downward is generated.

受渡し装置４は、各受取チャック２１，２１により展張吊上げ状態で支持されている布類Ｓの上縁部を受け取る吸着ボックス４１と、該吸着ボックス４１内を吸気する吸気フアン４２と、吸着ボックス４１を前後に進退させる伸縮シリンダ４３とを有している。吸着ボックス４１の先端部上面（布類受取面）には、多数の小孔を形成しており、該吸着ボックス４１内を吸気ファン４２で吸引することにより、布類受取面に布類上縁部を吸着（保持）させ得るようになっている。そして、この受渡し装置４は、吸着ボックス４１が前位置にある状態で布類受取面に布類上縁部を吸着させた後、該吸着ボックス４１を図３に鎖線図示（符号４１′）する位置まで後退させる間に、該布類上縁部を搬送装置５（吸着コンベア５１）の始端部上に移乗させるように作動する。   The delivery device 4 includes a suction box 41 that receives an upper edge portion of the cloth S supported by the receiving chucks 21 and 21 in a stretched and lifted state, an intake fan 42 that sucks the inside of the suction box 41, and a suction box 41. And a telescopic cylinder 43 that advances and retracts forward and backward. A large number of small holes are formed in the upper surface (cloth receiving surface) of the tip of the suction box 41. By suctioning the inside of the suction box 41 with an intake fan 42, the upper edge of the cloth is placed on the cloth receiving surface. Can be adsorbed (held). In the delivery device 4, the upper edge portion of the cloth is sucked on the cloth receiving surface while the suction box 41 is in the front position, and the suction box 41 is indicated by a chain line (reference numeral 41 ′) in FIG. 3. During the backward movement to the position, the upper edge portion of the cloth is operated so as to be transferred onto the starting end portion of the transport device 5 (suction conveyor 51).

搬送装置５は、手前側に多数の小孔を設けた吸着コンベア５１と、その後端部に連続する搬出コンベア５２とを有している。吸着コンベア５１の始端部は、前位置にある吸着ボックス４１の先端部（布類受取面）よりやや後側の直下近傍に位置している。吸着コンベア５１の上面走行部の下面には、吸気ボックス５３が設置されていて、該吸気ボックス５３内を吸気することで、吸着コンベア５１の上面に布類上縁部を吸着させ得るようになっている。   The transport device 5 includes a suction conveyor 51 having a large number of small holes on the front side, and a carry-out conveyor 52 that is continuous with the rear end portion. The starting end portion of the suction conveyor 51 is located in the vicinity of a position just below the rear side slightly from the front end portion (cloth receiving surface) of the suction box 41 at the front position. An air intake box 53 is installed on the lower surface of the upper surface running portion of the suction conveyor 51, and the upper edge of the cloth can be adsorbed on the upper surface of the suction conveyor 51 by sucking the inside of the air intake box 53. ing.

吸着コンベア５１側の吸気ボックス５３内は、上記吸引装置３の吸気ファン３３を共用して、吸引装置３の吸気ボックス３１とは択一的に吸気される。即ち、図３において、切換ダンパー３６が実線図示位置にあるときには、吸引装置３側の吸気ボックス３１内の吸気が停止する一方、吸着コンベア５１側の吸気ボックス５３内がダクト５４を通して吸気され、切換ダンパーが鎖線図示する符号３６′側に切換わると、逆に吸着コンベア５１側の吸気ボックス５３内の吸気が停止する一方、吸引装置３側の吸気ボックス３１内が吸気されるようになっている。   In the suction box 53 on the suction conveyor 51 side, the suction fan 33 of the suction device 3 is shared, and the suction box 31 of the suction device 3 is alternatively sucked. That is, in FIG. 3, when the switching damper 36 is in the position indicated by the solid line, intake in the intake box 31 on the suction device 3 side stops, while intake in the intake box 53 on the suction conveyor 51 side is sucked through the duct 54 and switched. When the damper is switched to the side of the reference numeral 36 'shown in the chain line, the intake air in the intake box 53 on the suction conveyor 51 side is stopped, while the intake box 31 on the suction device 3 side is inhaled. .

布類背面拡張装置６は、展張吊上げ布類Ｓの背面を左右に展張させるもので、左右一対ある。この各布類背面拡張装置６，６はそれぞれ拡張ベルト６１，６１を有している。尚、以下の説明では、この布類背面拡張装置６の拡張ベルト６１を背面側拡張ベルトということがある。   The cloth back surface expansion device 6 extends the back surface of the stretched lifting cloth S to the left and right, and has a pair of left and right. The cloth back surface expansion devices 6 and 6 have expansion belts 61 and 61, respectively. In the following description, the expansion belt 61 of the cloth back surface expansion device 6 may be referred to as a back surface side expansion belt.

この各背面側拡張ベルト６１，６１は、吸着コンベア５１の始端部より僅かに前側の直下近傍位置において、機枠１０の幅中央部から左右に振り分けた各位置に設置されている。又、該各背面側拡張ベルト６１，６１は、前面がほぼ鉛直面になる左右横長姿勢で設置されており、前面がそれぞれ左右外方向に走行するようにそれぞれモータ６２，６２で駆動される。尚、各背面側拡張ベルト６１，６１のそれぞれ外端部は、展張吊上げ位置にある布類Ｓの左右端部Ｓｄ，Ｓｄよりそれぞれ外側にはみ出す位置まで延出させている。   Each of the rear side expansion belts 61 and 61 is installed at each position distributed right and left from the center of the width of the machine frame 10 at a position in the immediate vicinity immediately below the starting end of the suction conveyor 51. Further, each of the rear side expansion belts 61, 61 is installed in a laterally long posture in which the front surface is a substantially vertical surface, and is driven by motors 62, 62 so that the front surface travels in the laterally outward direction. In addition, each outer end part of each back side expansion belt 61 and 61 is extended to the position which protrudes on the outer side from the right-and-left end part Sd and Sd of the cloth S in an extended lifting position, respectively.

各背面側拡張ベルト６１，６１は、図４〜図６に示すように、多数の小孔を設けた通気性のあるベルトを使用している。そして、各背面側拡張ベルト６１，６１の前面走行部の裏側には、それぞれ吸気ボックス６３，６３が配置されており、該吸気ボックス６３，６３内を吸引することにより、背面側拡張ベルト６１の前面に布類の背面を吸着させ得るようにしている。各吸気ボックス６３，６３内は、それぞれダクト６４，６４を介して吸気フアン６５の吸気口にそれぞれ接続されており、該吸気フアン６５の吸気により該各吸気ボックス６３，６３内を吸引し、それによって各背面側拡張ベルト６１，６１の前面走行部の各小孔から周囲の空気を吸引し得るようになっている。尚、この実施例では、吸気フアン６５は１台で両方の吸気ボックス６３，６３内を吸気するようにしているが、他の実施例では各吸気ボックス６３，６３ごとに吸気フアン６５を１台ずつ使用してもよい。   As shown in FIGS. 4 to 6, each of the rear side expansion belts 61, 61 uses a breathable belt provided with a large number of small holes. And suction boxes 63, 63 are respectively arranged on the back side of the front running parts of the respective rear side expansion belts 61, 61. By sucking the inside of the intake boxes 63, 63, the rear side expansion belts 61 are The back of the cloth can be adsorbed on the front. Each intake box 63, 63 is connected to an intake port of the intake fan 65 via ducts 64, 64, respectively, and the intake box 65 sucks the intake box 63, 63 by the intake air. Accordingly, ambient air can be sucked from each small hole of the front running portion of each of the rear side expansion belts 61 and 61. In this embodiment, one intake fan 65 is used to intake air in both intake boxes 63, 63. However, in another embodiment, one intake fan 65 is provided for each intake box 63, 63. You may use them one by one.

ところで、この実施例の布類展張搬送機では、処理すべき布類Ｓとして中央部に丸ぐり部Ｔを有した布団包布（額縁包布）を採用している。この額縁包布Ｓでは、丸ぐり部Ｔの周囲の生地が２枚重ね状態となっている。そして、丸ぐり部Ｔを有した布類Ｓを展張させる際には、図１に示すように丸ぐり部Ｔが前面側に向く姿勢で吊上げ展張するが、この場合、展張吊上げ布類Ｓにおける丸ぐり部Ｔの外周部分の２枚重ね部分に空気が入って布類前面部分が膨らむことがある。特に、展張吊上げ状態の布類Ｓでは、丸ぐり部Ｔの下端縁Ｔａが自重で垂れ下がることがある（図１５の符号Ｔａ′の状態）。   By the way, in the cloth spreading and conveying machine of this embodiment, a futon wrapping (frame wrapping) having a rounded portion T at the center is adopted as the cloth S to be processed. In the frame wrapping S, two pieces of fabric around the rounded portion T are stacked. Then, when the fabric S having the rounded portion T is stretched, the stretched fabric T is lifted and stretched in a posture in which the rounded portion T faces the front side as shown in FIG. Air may enter the two overlapping portions of the outer peripheral portion of the rounded portion T and the front portion of the cloth may swell. In particular, in the fabric S in the stretched and lifted state, the lower end edge Ta of the rounded portion T may hang down due to its own weight (state indicated by reference numeral Ta ′ in FIG. 15).

そこで、この実施例の布類展張搬送機には、展張吊上げ布類Ｓの前面をきれいに展張させるための左右一対の前面押付装置７，７を設けている。尚、この左右一対の前面押付装置７，７は、図１〜図２に示すように同じもの（サーボモータ７２ａは一方のみ）が左右対称形に配置されているが、該前面押付装置７の構成については、図４〜図７に示す右側の前面押付装置７で説明する。   In view of this, a pair of left and right front surface pressing devices 7 and 7 for neatly expanding the front surface of the stretched lifting cloth S is provided in the cloth extending and conveying machine of this embodiment. As shown in FIGS. 1 and 2, the same pair of left and right front pressing devices 7 and 7 (servo motor 72a is only one) are arranged symmetrically. The configuration will be described with the right front pressing device 7 shown in FIGS.

図４〜図７に示す前面押付装置７は、展張吊上げ布類（図１の符号Ｓの状態）の左右各外側部寄り前面Ｓｃ，Ｓｃに摺接させる強制拡張部材（請求項１及び２における接触部材に相当する）７１と、該強制拡張部材７１を左右に移動させる左右進退装置７２と、強制拡張部材７１を拡張ベルト６１前面にある展張吊上げ布類Ｓの前面Ｓｃから離間する離間位置と展張吊上げ布類の前面Ｓｃに接触する接触位置との間で前後に移動させる接離移動装置７３とを備えている。   The front pressing device 7 shown in FIGS. 4 to 7 is a compulsory expansion member (in Claims 1 and 2) that is slidably brought into contact with the front surfaces Sc and Sc near the left and right outer sides of the stretched lifting cloth (state S in FIG. 1). 71 (corresponding to a contact member), a left / right advance / retreat device 72 for moving the forced expansion member 71 to the left and right, and a separation position for separating the forced expansion member 71 from the front surface Sc of the stretched lifting cloth S on the front surface of the expansion belt 61 A contact / separation moving device 73 that moves back and forth between the contact position that contacts the front surface Sc of the stretched lifting cloth is provided.

強制拡張部材７１には、この実施例では、布類前面を摺接により左右外側に拡張させ得る拡張ベルト７５が使用されている。尚、この拡張ベルト７５の大きさは、特に限定するものではないが横長さが４０〜５０cm程度、上下幅が１０cm程度のものでよい。この拡張ベルト７５は、モータ７６によりベルト奥面側が左右外側に走行するように駆動される。又、拡張ベルト７５及びモータ７６は、横長の支持フレーム８１（図５〜図７）に装着されていて、後述するように強制拡張部材７１が支持フレーム８１とともに前後及び左右に移動するようになっている。尚、以下の説明では、強制拡張部材７１の拡張ベルト７５を前面側拡張ベルトということがある。   In this embodiment, the forcible expansion member 71 is an expansion belt 75 that can expand the front surface of the cloth to the left and right sides by sliding contact. The size of the expansion belt 75 is not particularly limited, but may be one having a lateral length of about 40 to 50 cm and a vertical width of about 10 cm. The extension belt 75 is driven by a motor 76 so that the back side of the belt travels left and right. The expansion belt 75 and the motor 76 are attached to a horizontally long support frame 81 (FIGS. 5 to 7), and the forcible expansion member 71 moves back and forth and right and left together with the support frame 81 as described later. ing. In the following description, the expansion belt 75 of the forced expansion member 71 may be referred to as a front surface side expansion belt.

そして、各強制拡張部材７１，７１は、その拡張ベルト（前面側拡張ベルト）７５，７５が各布類背面拡張装置６，６の拡張ベルト（背面側拡張ベルト）６１，６１と同高さ位置に対面した状態で該前面側拡張ベルト７５の走行面がほぼ鉛直面となる姿勢で設置されている。   Each of the forced expansion members 71 and 71 has the expansion belts (front expansion belts) 75 and 75 at the same height as the expansion belts (rear expansion belts) 61 and 61 of the cloth rear expansion devices 6 and 6. The front side expansion belt 75 is installed in such a posture that the running surface of the front side expansion belt 75 is substantially vertical.

左右進退装置７２は、図２に示すように単一のサーボモータ７２ａで両強制拡張部材７１，７１を同時に左右逆側に移動させ得るようにしたものである。即ち、この左右進退装置７２は、左右に長い間隔をもった状態で単一ベルト（無端ベルト）７２ｂを巻掛けし、該単一ベルト７２ｂを単一のサーボモータ７２ａで駆動し得るようにしたものである。   As shown in FIG. 2, the left / right advance / retreat device 72 is configured to be able to simultaneously move both the forcible expansion members 71, 71 to the left and right sides by a single servo motor 72 a. That is, the left / right advance / retreat device 72 is configured such that a single belt (endless belt) 72b is wound with a long left and right interval, and the single belt 72b can be driven by a single servo motor 72a. Is.

左右進退装置７２の単一ベルト７２ｂは、左右の各側部機枠１０，１０に跨がる左右長さを有し、且つ水平面内で走行するように設置されている。そして、この単一ベルト７２ｂは、サーボモータ７２ａにより左右に可逆的に走行せしめられるが、該ベルトの前側走行部分と後側走行部分とは相互に左右逆向きに走行するようになっている。   The single belt 72b of the left / right advance / retreat apparatus 72 has a left / right length straddling the left and right side machine casings 10 and 10, and is installed so as to run in a horizontal plane. The single belt 72b travels reversibly left and right by the servo motor 72a, but the front traveling portion and the rear traveling portion of the belt travel in opposite directions.

又、単一ベルト７２ｂには、その前側走行部分と後側走行部分にそれぞれ支持台７４，７４が固定されている。この各支持台７４，７４上には、それぞれ接離移動装置７３，７３が取付けられている。尚、この各支持台７４，７４は、それぞれ横長のガイドレール７７，７７により、左右水平方向に移動するようにガイドされている。   The single belt 72b has support bases 74 and 74 fixed to the front traveling portion and the rear traveling portion, respectively. The contact / separation moving devices 73 and 73 are mounted on the support bases 74 and 74, respectively. Each of the support bases 74 and 74 is guided by horizontal guide rails 77 and 77 so as to move in the horizontal direction.

各接離移動装置７３，７３には、それぞれストロークの短い伸縮シリンダが採用されている。尚、以下の説明では、各接離移動装置７３，７３を接離動シリンダということがある。   Each contact / separation moving device 73, 73 employs a telescopic cylinder having a short stroke. In the following description, the contact / separation moving devices 73 and 73 may be referred to as contact / separation cylinders.

各接離移動装置（接離動シリンダ）７３，７３のロッド先端には、それぞれ左右各強制拡張部材７１，７１の各支持フレーム８１，８１が連結されている。そして、各接離動シリンダ７３，７３が伸縮動作することにより、各強制拡張部材７１，７１を前後移動させ得るようになっている。即ち、接離動シリンダ７３が伸長状態では、強制拡張部材７１の拡張ベルト７５が、図５及び図６に実線図示するように展張吊上げ布類Ｓ（背面側拡張ベルト６１に接触している）の左右外側部寄り前面Ｓｃに対して前側に離間する位置にあり、接離動シリンダ７３が縮小すると、該強制拡張部材７１の拡張ベルト７５が図６の鎖線図示（符号７５′）及び図７に示すように上記展張吊上げ布類Ｓの左右外側部寄り前面Ｓｃに接触する位置まで移動するようになっている。   The support frames 81 and 81 of the left and right forced expansion members 71 and 71 are connected to the rod ends of the contact and separation movement devices (contact and separation cylinders) 73 and 73, respectively. Each of the forcible expansion members 71 and 71 can be moved back and forth by extending and contracting each of the contact / separation cylinders 73 and 73. That is, when the contact / separation cylinder 73 is in the extended state, the expansion belt 75 of the forcible expansion member 71 is stretched lifting cloth S (in contact with the back side expansion belt 61) as shown by the solid line in FIGS. When the contact / separation cylinder 73 is contracted, the expansion belt 75 of the forcible expansion member 71 is shown by a chain line (reference numeral 75 ') in FIG. 6 and FIG. As shown in FIG. 4, the stretched lifting cloth S is moved to a position in contact with the front surface Sc near the left and right outer portions.

左右各強制拡張部材７１，７１の各支持フレーム８１，８１と各接離移動装置（接離動シリンダ）７３，７３との連結位置は、各支持フレーム８１，８１の左右外端部であり、従って左右各強制拡張部材７１，７１の拡張ベルト７５，７５は、各接離動シリンダ７３，７３の連結位置よりそれぞれ左右内方側に延出するようになっている。このようにすることにより、図５及び図７に示すように、強制拡張部材７１が展張吊上げ布類Ｓの左右外側部寄り前面Ｓｃに対面したときに、接離動シリンダ７３の連結部が布類外端部Ｓｄに接触しないようにできる。   The connection positions of the support frames 81, 81 of the left and right forced expansion members 71, 71 and the contact / separation moving devices (contact / separation cylinders) 73, 73 are the left and right outer ends of the support frames 81, 81, respectively. Accordingly, the expansion belts 75 and 75 of the left and right forced expansion members 71 and 71 extend from the connecting position of the contact / separation cylinders 73 and 73 to the left and right inner sides, respectively. By doing so, as shown in FIGS. 5 and 7, when the forcible expansion member 71 faces the front surface Sc near the left and right outer portions of the stretched lifting cloth S, the connecting portion of the contact / separation cylinder 73 becomes the cloth. It is possible to prevent contact with the external end Sd.

左右各側の強制拡張部材７１，７１は、左右進退装置７２により、布類が両受取チャック２１，２１で吊上げ展張されるまでは図１及び図２に鎖線図示（符号７１′，７１′）するように左右外側の退避位置に移動せしめられており、該布類が吊上げ展張された後、その展張吊上げ布類Ｓが背面側拡張ベルト６１，６１に接触した状態で、図１及び図２に実線図示（符号７１，７１）するように該展張吊上げ布類Ｓの左右外側部寄り前面Ｓｃ，Ｓｃに対面する対面位置に移動せしめられるようになっている。   The forcibly expanding members 71, 71 on the left and right sides are shown by chain lines in FIG. 1 and FIG. 2 (reference numerals 71 ', 71') until the cloth is lifted and stretched by the receiving chucks 21, 21 by the left / right advance / retreat device 72. 1 and 2 in a state where the stretched and raised fabric S is in contact with the rear side expansion belts 61 and 61 after the fabric is lifted and stretched. As shown by the solid lines (reference numerals 71, 71), the stretched lifting cloth S is moved to the facing position facing the front surfaces Sc, Sc near the left and right outer portions.

ところで、処理すべき布類（額縁包布）Ｓは、子供用や大人用等で大小複数のサイズのものがあり、しかも大人用のものでも顧客によってサイズの異なるものが使用されている。そして、この布類展張搬送機で大小サイズの布類が混在しているものを扱う場合には、図４に示すように、小サイズの布類Ｓでは、受取チャック２１（左右に一対ある）が実線図示する待機位置から符号２１′で示す鎖線図示位置までの距離Ｌだけ外側移動したときに布類上辺部Ｓａが緊張し、大サイズの布類Ｓ0では、受取チャック２１が待機位置から符号２１″で示す鎖線図示位置までの距離Ｍだけ外側移動したときに布類上辺部Ｓａが緊張するようになる。 By the way, the cloth (frame wrapping) S to be processed is for children and adults of various sizes, and for adults, different sizes are used depending on the customer. Then, when handling a cloth in which large and small sizes are mixed in the cloth spreading and conveying machine, as shown in FIG. 4, the small size cloth S has a receiving chuck 21 (a pair of left and right). from There cloths upper portion Sa is tensed when the outer moved a distance L from the standby position to the solid line shown to the chain line position shown indicated by reference numeral 21 ', the cloth S 0 of large size, receives the chuck 21 is waiting position When the cloth is moved outward by a distance M to the position indicated by the chain line indicated by reference numeral 21 ″, the upper side portion Sa of the cloth becomes tensed.

従って、上記各前面押付装置７，７を使用する場合には、各強制拡張部材７１，７１を外側退避位置から布類サイズに応じた適正位置まで内側に移動させる必要がある。   Therefore, when using each said front pressing apparatus 7 and 7, it is necessary to move each forced expansion member 71 and 71 inside from the outer side retraction position to the appropriate position according to cloth size.

そこで、この実施例の布類展張搬送機では、展張吊上げ布類のサイズ（例えば図４の小サイズＳや大サイズＳ0）に応じて、各強制拡張部材７１，７１を自動で適正位置まで移動させる機構を備えている。 Therefore, in the cloth spreading and conveying machine of this embodiment, each of the forced expansion members 71 and 71 is automatically moved to an appropriate position in accordance with the size of the hanging lifting cloth (for example, the small size S or the large size S 0 in FIG. 4). A moving mechanism is provided.

即ち、この実施例の布類展張搬送機では、各受取チャック２１，２１を左右移動させる左右動装置２２，２２にそれぞれサーボモータ２３，２３を使用している一方、各強制拡張部材７１，７１を左右移動させる左右進退装置７２にサーボモータ７２ａを使用している。そして、各左右動装置２２，２２の各サーボモータ２３，２３で各受取チャック２１，２１を布類上辺部Ｓｂが左右に緊張するまで離間させたときのサーボモータ駆動量データをコントローラ８に入力し、該コントローラ８から左右進退装置７２のサーボモータ７２ａに対して各強制拡張部材７１，７１をサーボモータ駆動量データに対応する移動量だけ移動させるような制御信号を発するようにしている。   That is, in the cloth spreading and conveying machine of this embodiment, the servo motors 23 and 23 are used for the left and right moving devices 22 and 22 for moving the receiving chucks 21 and 21 to the left and right, respectively. The servo motor 72a is used for the left / right advance / retreat device 72 for moving the right and left. Then, the servo motor drive amount data when the respective receiving chucks 21 and 21 are separated by the servo motors 23 and 23 of the left and right moving devices 22 and 22 until the cloth upper side Sb is strained to the left and right is input to the controller 8. The controller 8 issues a control signal to the servo motor 72a of the left / right advance / retreat device 72 so as to move the forcible expansion members 71, 71 by a movement amount corresponding to the servo motor drive amount data.

具体的には、次のように作動する。尚、布類の展張前には、各強制拡張部材７１，７１はそれぞれ図１及び図２に符号７１′，７１′で示すように外方退避位置で且つ手前側離間位置にある。そして、布類の各角部Ｓａ，Ｓａを機枠中央位置で待機している両受取チャック２１，２１で吊上げた状態（布類が図１の符号Ｓ″の状態）から各左右動装置２２，２２（サーボモータ２３，２３）により該両受取チャックを符号２１′，２１′で示すように布類上辺部が緊張するまで左右に離間させたとき（図１の場合は布類Ｓが小サイズで各受取チャック２１，２１が距離Ｌずつ移動する）の各サーボモータ駆動量データをコントローラ８に入力し、そのサーボモータ駆動量データに基いてコントローラ８から左右進退装置７２のサーボモータ７２ａに対して、外方退避位置にある各強制拡張部材７１′，７１′を展張吊上げ布類Ｓの左右外側部寄り前面Ｓｃ，Ｓｃに正確に対面する位置（符号７１，７１の位置）までの距離Ｌ0だけ内方移動させるようにしている。 Specifically, it operates as follows. Before the cloth is stretched, the forcible expansion members 71 and 71 are in the outward retracted position and the front side separated position as indicated by reference numerals 71 'and 71' in FIGS. 1 and 2, respectively. Then, each lateral movement device 22 from the state where the corners Sa, Sa of the fabric are lifted by the receiving chucks 21, 21 waiting at the center position of the machine frame (the fabric is in the state indicated by S ″ in FIG. 1). , 22 (servo motors 23, 23) when the receiving chucks are separated from each other until the upper side of the cloth is tensioned as indicated by reference numerals 21 'and 21' (in the case of FIG. 1, the cloth S is small). The servo motor drive amount data of each receiving chuck 21, 21 is moved by the distance L in accordance with the size) is input to the controller 8, and from the controller 8 to the servo motor 72a of the left / right advance / retreat device 72 based on the servo motor drive amount data. On the other hand, the distance to the position (reference numerals 71, 71) where the forcibly expanding members 71 ', 71' at the outward retracted position accurately face the front surfaces Sc, Sc near the left and right outer portions of the stretched lifting cloth S. internal only L 0 And so as to moved.

又、布類サイズが図４に符号Ｓ0で示す大サイズのものでは、布類上辺部の展張時に受取チャック２１が符号２１″で示す位置までの距離Ｍだけ移動し、そのときのサーボモータ２３の駆動量データをコントローラ８に入力するとともに、そのサーボモータ駆動量データに基いてコントローラ８から左右進退装置７２のサーボモータ７２ａに対して、外方退避位置にある各強制拡張部材７１′を展張吊上げ布類Ｓ0の左右外側部寄り前面Ｓｃに正確に対面する位置（符号７１″の位置）までの距離Ｍ0だけ内方移動させる。 Further, those fabrics, the size of large size indicated by symbol S 0 in FIG. 4, receives the chuck 21 when stretched the cloth upper portion moves by a distance M to the position indicated by reference numeral 21 ", the servo motor at that time 23 is input to the controller 8 and each of the forcible expansion members 71 'at the outward retracted position is moved from the controller 8 to the servo motor 72a of the left / right advance / retreat device 72 based on the servo motor drive amount data. The stretched lifting cloth S 0 is moved inward by a distance M 0 to a position (position 71 ″) that accurately faces the front surface Sc near the left and right outer portions.

尚、各左右動装置２２，２２による各受取チャック２１，２１の移動範囲（例えば図１の各距離Ｌ，Ｌ）は常に同じであり、従ってコントローラ８に入力する上記サーボモータ駆動量データは一方のサーボモータ２３のものだけでもよい。   The moving ranges of the receiving chucks 21 and 21 by the left and right moving devices 22 and 22 (for example, the distances L and L in FIG. 1) are always the same. Therefore, the servo motor driving amount data input to the controller 8 is one side. Only the servo motor 23 may be used.

そして、各強制拡張部材７１，７１が展張吊上げ布類の左右外側部寄り前面Ｓｃ，Ｓｃに対面した後、各接離移動装置（接離動シリンダ）７３，７３が縮小して、各前面側拡張ベルト７５，７５を図６の鎖線図示位置（符号７５′）及び図７に示すように布類外側部寄り前面Ｓｃに接触させる。又、接離動シリンダ７３の縮小作動に前後して、強制拡張部材７１のモータ７６を作動させ、前面側拡張ベルト７５を作動させる（ベルト奥面が左右外側に走行する）。   Then, after each forcible expansion member 71, 71 faces the front surface Sc, Sc near the left and right outer sides of the stretched lifting cloth, each contact / separation moving device (contact / separation cylinder) 73, 73 shrinks, and each front side The extension belts 75 and 75 are brought into contact with the front surface Sc closer to the cloth outer side as shown in FIG. Further, before and after the reduction operation of the contact / separation cylinder 73, the motor 76 of the forcible expansion member 71 is operated to operate the front side expansion belt 75 (the belt inner surface travels outward in the left and right directions).

又、この実施例の布類展張搬送機では、後述するように（後述の作動説明）、各強制拡張部材７１，７１がそれぞれ布類外側部寄り前面Ｓｃ，Ｓｃに接触した状態で展張吊上げ布類Ｓが上方に引き上げられていき、図１１に示すように展張吊上げ布類Ｓの丸ぐり部Ｔの下端縁Ｔａ付近が強制拡張部材７１，７１の高さ位置に差しかかったときに、コントローラ８からの信号で左右進退装置７２（サーボモータ７２ａ）を退避側に作動させて各強制拡張部材７１，７１を布類左右外側部寄り前面Ｓｃ，Ｓｃに摺接させながらそれぞれ退避位置まで移動せしめるようにしている。尚、各強制拡張部材７１，７１を対面位置から退避位置に移動させるタイミングは、例えば展張吊上げ布類の上方引き上げ開始時点から所定タイマー後に（展張吊上げ布類の丸ぐり部の下端縁Ｔａ付近が強制拡張部材７１，７１の高さ位置に差しかかった時点で）コントローラ８からの信号で左右進退装置７２を退避側に作動させるようにしたり、あるいは引き上げられる展張吊上げ布類の下端縁が所定高さ位置を通過するのを検出器で検出して該検出器からの信号で左右進退装置７２を退避側に作動させるようにしたりすることができる。   Further, in the fabric spreading and conveying machine of this embodiment, as will be described later (operation explanation described later), each of the forcibly expanding members 71 and 71 is in contact with the front surfaces Sc and Sc near the cloth outer side, respectively. When the class S is pulled upward and the vicinity of the lower edge Ta of the rounded portion T of the stretched lifting cloth S approaches the height position of the forcible expansion members 71, 71 as shown in FIG. 8, the left / right advance / retreat device 72 (servo motor 72 a) is actuated to the retreat side, and the forcible expansion members 71, 71 are moved to the retreat positions while being in sliding contact with the front surfaces Sc, Sc near the left and right outer sides of the cloth. I am doing so. The timing for moving each of the forcible expansion members 71, 71 from the facing position to the retracted position is, for example, after a predetermined timer from the start of the upward lifting of the extended lifting cloth (the vicinity of the lower edge Ta of the rounded portion of the extended lifting cloth) When the forcible expansion members 71 and 71 are approached to the height position, a signal from the controller 8 activates the left / right advance / retreat device 72 to the retreat side, or the lower end edge of the stretched lifting cloth to be pulled up has a predetermined height. It is possible to detect the passage through the position by a detector and operate the left / right advance / retreat device 72 to the retract side by a signal from the detector.

次に、この実施例の布類展張搬送機の作動方法を図８〜図１１を併用して説明する。尚、運転時の初期状態では、吸引装置３の吸気フアン３３、布類背面拡張装置６の吸気フアン６５、各背面側拡張ベルト６１，６１のモータ６２、搬送装置５の吸着コンベア５１及び搬出コンベア５２等はそれぞれ作動している。又、前面押付装置７，７の各強制拡張部材（前面側拡張ベルト）７１，７１は、それぞれ図１及び図２に符号７１′で示すように外側の退避位置で且つ背面側拡張ベルト６１に対して手前側の後退位置にある。尚、各前面側拡張ベルト７５，７５は、運転中は背面側拡張ベルト６１，６１と同様に連続走行させてもよいが、この実施例では後述のように所定の行程範囲のみで走行させる。   Next, the operation method of the cloth spreading and conveying machine of this embodiment will be described with reference to FIGS. In the initial state during operation, the suction fan 33 of the suction device 3, the suction fan 65 of the cloth rear surface expansion device 6, the motors 62 of the respective rear side expansion belts 61 and 61, the suction conveyor 51 and the carry-out conveyor of the transport device 5. 52 etc. are operating respectively. Further, the forcible expansion members (front side expansion belts) 71 and 71 of the front surface pressing devices 7 and 7 are respectively located at the outside retracted position and the rear side expansion belt 61 as indicated by reference numeral 71 ′ in FIGS. 1 and 2. It is in the retracted position on the near side. The front side extension belts 75 and 75 may be continuously run during operation in the same manner as the back side extension belts 61 and 61. However, in this embodiment, the front side extension belts 75 and 75 are run only in a predetermined stroke range as will be described later.

布類を布類展張搬送機に供給するには、作業位置において布類の一辺（長辺）の両端角部を捜し出し、図１に示すようにその両端角部Ｓａ，Ｓａを投入装置１の各投入チャック１１，１１にそれぞれ掴持させる（図１、図８の各符号Ｓ′の状態）。次に各投入チャック１１，１１が布類両端角部Ｓａ，Ｓａを掴持したまま所定高さまで上動して、布類両端角部を上方で待機している各受取チャック２１，２１に受け渡し（図１、図８の符号Ｓ″の状態）、続いて各左右動装置２２，２２により各受取チャック２１，２１を布類上辺部が緊張するまで左右離間方向に移動せさて、布類上辺部Ｓｂを吊上げ状態で左右に展張させる。   In order to supply the cloth to the cloth spreading and conveying machine, the both end corners of one side (long side) of the cloth are searched for at the working position, and the both end corners Sa and Sa as shown in FIG. Each of the input chucks 11 and 11 is held (state of each symbol S ′ in FIGS. 1 and 8). Next, the input chucks 11 and 11 are moved up to a predetermined height while holding the cloth both end corners Sa and Sa, and the cloth both end corners are transferred to the receiving chucks 21 and 21 waiting on the upper side. (The state indicated by reference sign S ″ in FIGS. 1 and 8), and then the left and right moving devices 22 and 22 move the receiving chucks 21 and 21 in the left and right separating directions until the upper side of the cloth is tensioned. The part Sb is extended left and right in a lifted state.

このとき、展張される布類のサイズ（例えば図４の小サイズ布類Ｓや大サイズ布類Ｓ0）により受取チャック２１の移動距離（図４の距離Ｌや距離Ｍ）が変化し、それに伴って各左右動装置２２，２２（サーボモータ２３，２３）の駆動量が変化するが、展張された布類ごとにそのサーボモータ駆動量データがそれぞれコントローラ８に入力される。 At this time, the moving distance (distance L and distance M in FIG. 4) of the receiving chuck 21 changes depending on the size of the cloth to be stretched (for example, the small size cloth S and the large size cloth S 0 in FIG. 4). Along with this, the drive amount of each of the left and right moving devices 22 and 22 (servo motors 23 and 23) changes, but the servo motor drive amount data is input to the controller 8 for each stretched fabric.

次に、展張吊上げ布類が図８の符号Ｓ″の状態から、送込みローラ３４が送込み方向に高速回転するとともに、切換ダンパー３６が鎖線図示（符号３６′）側に切換えられて吸気ボックス３１内の空気が吸引され、布類の下端側が吸気ボックス３１内に吸い込まれる（展張吊上げ布類が図８の符号Ｓ1の状態になる）。このとき、この展張吊上げ布類Ｓ1には、吸気ファン３３の吸引作用により、下方へのテンションがかけられて、該布類が方形状に展張される。 Next, from the state of the reference sign S ″ in FIG. 8, the extending and lifting cloths are rotated at high speed in the feeding direction, and the switching damper 36 is switched to the chain line illustration (reference numeral 36 ′) side, and the intake box air 31 is sucked, the lower end of the cloth is drawn into the intake box 31 (stretched lifting cloth is in a state of the letter S 1 designates in Figure 8). in this case, the cloth S 1 this stretched the lifting By the suction action of the intake fan 33, a downward tension is applied, and the cloths are spread in a square shape.

尚、この状態では、展張吊上げ布類の上部は、左右の受取チャック２１，２１の引張力によりかなりの緊張状態で伸展されているので、表裏各生地がほとんど接合している（表裏各生地間に空気がほとんど入っていない）が、展張吊上げ布類の左右各側部及び下部は表裏各生地間に空気が入って前面生地が膨らんでいる場合が多い（特に、丸ぐり部Ｔの下端縁Ｔａ部分は生地の自重で垂れ下がることが多々ある）。   In this state, the upper portions of the stretched lifting cloths are stretched in a considerable tension state by the tensile force of the left and right receiving chucks 21 and 21, so that the front and back fabrics are almost joined (between the front and back fabrics). However, there are many cases where the front fabric is swollen due to air entering between the front and back fabrics (especially, the bottom edge of the rounded portion T). The Ta part often hangs down due to its own weight).

その後、切換ダンパー３６′が実線図示側に切換えられ（吸着コンベア５１の吸気ボックス５３内が吸気される）、各受取チャック２１，２１が開放されて、布類の上辺部分が吸着ボックス４１の先端側上面に吸着・保持される。尚、このとき、布類上辺部分を図示しないブロワーからのエアで吸着ボックス４１の先端側上面に向けて押付けるようにするとよい。続いて、吸着ボックス４１が図９に実線図示する位置を経て鎖線図示位置（符号４１′）まで後退するが、その間に布類上辺部分が吸着コンベア５１上に移乗される（図１０の符号Ｓ3の状態）。 Thereafter, the switching damper 36 ′ is switched to the side indicated by the solid line (the suction box 53 of the suction conveyor 51 is sucked), the receiving chucks 21 and 21 are opened, and the upper side portion of the cloth is the tip of the suction box 41. Adsorbed and held on the side upper surface. At this time, the upper side portion of the cloth may be pressed toward the top surface of the suction box 41 with air from a blower (not shown). Subsequently, the suction box 41 moves back to the position indicated by the chain line (reference numeral 41 ') through the position indicated by the solid line in FIG. 9, while the upper side portion of the cloth is transferred onto the suction conveyor 51 (reference numeral S in FIG. 10). 3 state).

ところで、展張吊上げ布類の上辺部が受取チャック２１から吸着ボックス４１を経て吸着コンベア５１の始端部に移乗される間には、展張吊上げ布類の上部寄り部分が側面視において左右の強制拡張部材７１，７１間を前方から後方に横切るが、このとき左右の強制拡張部材が図１に鎖線図示（符号７１′）するようにそれぞれ展張吊上げ布類の左右各外端部Ｓｄ，Ｓｄの外側に位置しているので、布類の各外端部Ｓｄ，Ｓｄが各強制拡張部材７１′に引っ掛かることがない。   By the way, while the upper side portion of the stretched lifting cloth is transferred from the receiving chuck 21 through the suction box 41 to the starting end portion of the suction conveyor 51, the upper side portion of the stretched lifting cloth is a left and right forced expansion member in a side view. 71, 71 crosses from the front to the rear. At this time, the right and left forcible expansion members are respectively placed on the outer sides of the left and right outer ends Sd, Sd of the stretched lifting cloths as shown by a chain line (reference numeral 71 ') in FIG. Therefore, the outer end portions Sd and Sd of the cloth are not caught by the forcible expansion members 71 ′.

又、布類上辺部分を吸着した吸着ボックス４１が図８に示す前方突出位置から後退移動を開始し、展張吊上げ布類の上部寄り部分が左右の強制拡張部材７１，７１間を奥側に横切った直後（例えば吸着ボックス４１が図９に実線図示する位置まで後退したとき）に、コントローラ８からの制御信号で左右進退装置７２のサーボモータ７２ａを強制拡張部材内方移動側に作動させる（サーボモータ７２ａを図２において右回転させる）。このときのコントローラ８からの制御信号（左右進退装置のサーボモータ７２ａに対する指示駆動量）は、先にコントローラ８に入力されているサーボモータ駆動量データ（各受取チャック２１の移動距離データ）に対応して、各強制拡張部材７１，７１を各外方退避位置（７１′の位置）から展張吊上げ布類の左右外側部寄り前面Ｓｃ，Ｓｃに正確に対面させる位置まで移動させるものである。例えば、図４において、布類上辺部の展張時に受取チャック２１の移動距離がＬの場合（小サイズ布類Ｓの場合）は、コントローラ８からサーボモータ７２ａに対して強制拡張部材７１を距離Ｌ0だけ移動させる制御量の信号を出力し、該受取チャック２１の移動距離がＭの場合（大サイズ布類Ｓ0の場合）は、コントローラ８からサーボモータ７２ａに対して強制拡張部材７１を距離Ｍ0だけ移動させる制御量の信号を出力する。 Further, the suction box 41 that sucks the upper side portion of the cloth starts to move backward from the forward projecting position shown in FIG. 8, and the upper portion of the stretched lifting cloth crosses between the left and right forced expansion members 71 and 71 to the back side. Immediately after that (for example, when the suction box 41 is retracted to the position indicated by the solid line in FIG. 9), the servo motor 72a of the left / right advance / retreat device 72 is actuated to the inward movement side of the forcible expansion member by a control signal from the controller 8 (servo The motor 72a is rotated clockwise in FIG. At this time, the control signal from the controller 8 (instruction drive amount for the servo motor 72a of the left / right advance / retreat apparatus) corresponds to the servo motor drive amount data (movement distance data of each receiving chuck 21) previously input to the controller 8. Then, the forcible expansion members 71, 71 are moved from the respective outward retracted positions (positions 71 ') to the positions where they face the front surfaces Sc, Sc close to the left and right outer portions of the stretched lifting cloths. For example, in FIG. 4, when the movement distance of the receiving chuck 21 is L when the upper side of the cloth is stretched (in the case of the small-size cloth S), the controller 8 moves the forced expansion member 71 from the servo motor 72a to the distance L. When the movement amount of the receiving chuck 21 is M (in the case of the large size cloth S 0 ), the controller 8 outputs a control amount signal for moving by 0, and moves the forced expansion member 71 from the controller 8 to the servo motor 72a. A control amount signal to be moved by M 0 is output.

このように、布類上辺部の展張時におけるサーボモータ駆動量データに基いてコントローラ８で左右進退装置７２（サーボモータ７２ａ）の作動量を制御するようにすると、布類サイズに拘わらず、毎回自動で且つ各強制拡張部材７１，７１を展張吊上げ布類の左右外側部寄り前面Ｓｃ，Ｓｃに対して常に適正位置に対面させることができる。   In this way, if the controller 8 controls the operation amount of the left / right advance / retreat device 72 (servo motor 72a) based on the servo motor drive amount data when the upper side of the fabric is stretched, it is not limited regardless of the fabric size. The forced expansion members 71 and 71 can be made to face each other at an appropriate position automatically with respect to the front surfaces Sc and Sc near the left and right outer portions of the stretched lifting cloth.

続いて左右の各接離移動装置（接離動シリンダ）７３，７３を縮小させて、図６の鎖線図示又は図７に示すように各強制拡張部材７１の前面側拡張ベルト７５をそれぞれ展張吊上げ布類の左右各外側部寄り前面Ｓｃ，Ｓｃに接触させるとともに、各前面側拡張ベルト７５，７５の各モータ７６を作動させて該前面側拡張ベルト７５の奥側面をそれぞれ左右外向きに走行させる（図１０の状態）。   Subsequently, the left and right contact / separation moving devices (contact / separation cylinders) 73, 73 are contracted, and the front side expansion belt 75 of each forcible expansion member 71 is stretched and lifted as shown by the chain line in FIG. 6 or as shown in FIG. The cloths are brought into contact with the front surfaces Sc, Sc near the left and right outer portions of the cloth, and the motors 76 of the front side extension belts 75, 75 are operated so that the inner side surfaces of the front side extension belts 75 run leftward and rightward, respectively. (State of FIG. 10).

この状態（図１０の状態）では、図７に示すように、展張吊上げ状態の布類Ｓが左右の各背面側拡張ベルト６１，６１と左右の各前面側拡張ベルト７５，７５とで表裏から軽く挟持され、且つ表裏各側の拡張ベルト６１，７５がそれぞれ左右外向きに走行しているので、展張吊上げ布類Ｓはその表裏各側からそれぞれ左右各外側に引っ張られる作用を受ける。   In this state (the state shown in FIG. 10), as shown in FIG. 7, the cloth S in the stretched and lifted state is seen from the front and back by the left and right rear side extension belts 61 and 61 and the left and right front side extension belts 75 and 75. Since the extension belts 61 and 75 on both sides of the front and back sides are running lightly outward in the left and right directions, the stretch lifting cloth S is subjected to the action of being pulled from the front and back sides to the left and right outer sides.

そして、その後も吸着コンベア５１が走行していることにより、展張吊上げ布類の下部側が順次上方に引き上げられていくが、その最中に布類の各外側部寄り部分がそれぞれ表裏から各拡張ベルト６１，７５で挟持され、且つ展張吊上げ布類Ｓの背面側が各背面側拡張ベルト６１，６１で順次左右外側に展張される一方、該展張吊上げ布類Ｓの前面側が各前面側拡張ベルト７５，７５で順次左右外側に展張されるので、布類の左右各側部（表裏各生地間）の空気が排除されるとともに、布類の表裏両面が左右に展張される。   Then, since the suction conveyor 51 is still running, the lower side of the stretched and lifted cloth is sequentially pulled upward. During this process, the outer side portions of the cloth are respectively extended from the front and back to the respective extension belts. 61, 75, and the back side of the stretched lifting cloth S is stretched sequentially to the left and right by the back side extension belts 61, 61, while the front side of the stretched lifting cloth S is the front side extension belt 75, Since it is stretched to the left and right sides sequentially at 75, air on the left and right sides of the fabric (between the front and back fabrics) is removed and both the front and back surfaces of the fabric are stretched to the left and right.

又、図１１に示すように、展張吊上げ布類Ｓの丸ぐり部下縁部Ｔａが前面側拡張ベルト７５，７５の高さ位置に差しかかったときには、各前面側拡張ベルト７５，７５による左右展張機能により、丸ぐり部Ｔの下縁Ｔａ部分が左右各外側に引っ張られる作用を受け、丸ぐり部Ｔの下縁Ｔａ部分が自重で垂れ下がっていても該丸ぐり部下縁Ｔａ部分も緊張状態に伸展するようになる。   As shown in FIG. 11, when the lower edge Ta of the rounded lifting cloth S reaches the height position of the front side extension belts 75, 75, the left and right extension belts 75, 75 Due to the function, the lower edge Ta portion of the rounded portion T is pulled to the left and right outer sides, and even if the lower edge Ta portion of the rounded portion T hangs under its own weight, the lower edge Ta portion of the rounded portion T is also in a tension state. It comes to extend.

さらに、展張吊上げ布類Ｓが図１１に示す状態まで引き上げられた時点、即ち、展張吊上げ布類の丸ぐり部下縁部Ｔａが前面側拡張ベルト７５，７５の高さに差しかかった時点で、コントローラ８からの信号で左右進退装置７２のサーボモータ７２ａが退避側に作動し（サーボモータ７２ａが図２において左回転する）、各前面側拡張ベルト７５，７５を丸ぐり部下縁部Ｔａの左右各外側部寄り位置Ｓｃ，Ｓｃに摺接しながら退避位置（図１、図２の符号７１′の位置）まで移動させる。このとき、丸ぐり部下縁部Ｔａが摺接により左右各外側に引っ張られ、丸ぐり部の下縁部分が自重で垂れ下がっていても該丸ぐり部下縁部分が確実に緊張状態に伸展する。   Furthermore, when the stretched lifting cloth S is pulled up to the state shown in FIG. 11, that is, when the lower edge Ta of the rounded lifting cloth reaches the height of the front side expansion belts 75, 75. In response to a signal from the controller 8, the servo motor 72a of the left / right advance / retreat device 72 operates to the retract side (the servo motor 72a rotates counterclockwise in FIG. 2), and the front side expansion belts 75, 75 are moved to the left and right of the rounded portion lower edge portion Ta. It moves to the retracted position (the position of reference numeral 71 ′ in FIGS. 1 and 2) while being in sliding contact with each outer side position Sc, Sc. At this time, the rounded portion lower edge portion Ta is pulled to the left and right outer sides by sliding contact, and even if the lower edge portion of the rounded portion hangs down by its own weight, the rounded portion lower edge portion surely extends into a tension state.

退避位置まで後退した各強制拡張部材は、それぞれ接離移動装置７３が伸長することにより手前側の後退位置（図２に符号７１′で示す鎖線図示位置）に戻されて、そこで次の布類展張作業時まで待機する。尚、各強制拡張部材７１，７１が退避位置まで戻されたときに、モータ７６がＯＦＦになって、前面側拡張ベルト７５の走行が停止する。   Each forcible expansion member retracted to the retracted position is returned to the retracted position on the near side (position indicated by the chain line 71 'in FIG. 2) when the contact / separation moving device 73 is extended. Wait until the extension work. In addition, when each forced expansion member 71, 71 is returned to the retracted position, the motor 76 is turned off and the traveling of the front side expansion belt 75 is stopped.

このように、この布類展張搬送機を使用すれば、丸ぐり部Ｔを有した布類（額縁包布）Ｓであっても、表裏の各全面をそれぞれきれいに展張させた状態でプレス工程側に搬送させることができ、折り皺のない状態で加工できる。   In this way, if this cloth spreading conveyor is used, even in the case of a cloth (frame wrapping) S having a rounded portion T, the entire front and back surfaces of each cloth are neatly stretched. And can be processed without creases.

又、この布類展張搬送機では、サイズの異なる布類が混在したものを処理する場合であっても、該布類サイズに応じて各強制拡張部材７１，７１を自動で且つ展張吊上げ布類の左右外側部寄り前面Ｓｃ，Ｓｃに対して常に正確な対面位置に位置させることができる。   Further, in this cloth spreading and conveying machine, even when processing a mixture of cloths of different sizes, the forced expansion members 71 and 71 are automatically and stretched and lifted according to the cloth size. It is possible to always be positioned at an accurate facing position with respect to the front surfaces Sc, Sc near the left and right outer portions.

又、この実施例のように、左右進退装置７２として、単一のサーボモータ７２ａで両強制拡張部材７１，７１を同時に左右逆側に移動させ得るようにしたものを使用すると、単一のサーボモータ７２ａを両強制拡張部材７１，７１の進退操作に共用できるので、左右進退装置７２の構成を簡略化できる。   Further, as in this embodiment, when the left and right advance / retreat device 72 is configured such that both the forcible expansion members 71 and 71 can be simultaneously moved to the left and right sides by a single servo motor 72a, a single servo is used. Since the motor 72a can be commonly used for the forward / backward operation of the forcible expansion members 71, 71, the configuration of the left / right advance / retreat apparatus 72 can be simplified.

さらに、各接触部材として、展張吊上げ布類の左右外側部寄り前面Ｓｃ，Ｓｃをそれぞれ強制的に左右外側に拡張させ得る強制拡張部材７１を使用すると、丸ぐり部の周囲全面を一層きれいに展張させることができ、しかも垂れ皺が残り易い丸ぐり部の下端縁もきれいに展張させることができる。   Furthermore, when the forcible expansion member 71 capable of forcibly expanding the front and rear Sc, Sc near the left and right outer portions of the stretched lifting cloths to the left and right outer sides is used as each contact member, the entire surrounding area of the rounded portion is expanded more neatly. In addition, the lower edge of the rounded portion where dripping creases are likely to remain can be neatly extended.

尚、この布類展張搬送機で、シーツのような１枚ものの布類を処理する際には、各強制拡張部材７１，７１をそれぞれ外方退避位置に維持させておく（作動させない）ことができる。   In addition, when processing one piece of cloth such as a sheet with this cloth spreading and conveying machine, each of the forcible expansion members 71 and 71 may be maintained in the outward retracted position (not operated). it can.

本願実施例の前面押付装置を用いた布類展張搬送機の正面図である。It is a front view of the cloth extension conveyance machine using the front pressing device of the example of this application. 図１のII−II矢視図である。It is an II-II arrow line view of FIG. 図１のIII−III矢視図である。It is the III-III arrow line view of FIG. 図１の右側前面押付装置部分の拡大図である。It is an enlarged view of the right side front pressing apparatus part of FIG. 図４の平面図である。FIG. 5 is a plan view of FIG. 4. 図４のVI−VI拡大断面図である。It is VI-VI expanded sectional drawing of FIG. 図５の状態から強制拡張部材が布類前面に接触した状態の拡大図である。FIG. 6 is an enlarged view of a state in which the forcible expansion member is in contact with the cloth front surface from the state of FIG. 5. 図１の布類展張搬送機の作動説明図（図３相当図）である。It is operation | movement explanatory drawing (corresponding to FIG. 3) of the cloth spreading and conveying machine of FIG. 図８からの状態変化図である。It is a state change figure from FIG. 図９からの状態変化図である。FIG. 10 is a state change diagram from FIG. 9. 図１０から状態変化したときの正面図である。It is a front view when a state changes from FIG. 公知例の布類展張搬送機の正面図である。It is a front view of the cloth spreading and conveying machine of a well-known example. 図１２の布類展張搬送機の作動説明図である。It is operation | movement explanatory drawing of the cloth extension conveyance machine of FIG. 図１３からの状態変化図である。It is a state change figure from FIG. 展張吊上げ状態の布類の説明図である。It is explanatory drawing of the cloth of a state where it is stretched and suspended. 先願例の布類展張搬送機の正面図である。It is a front view of the cloth extension conveyance machine of the example of a prior application. 図１６の布類展張搬送機のＸVII−ＸVII矢視図である。FIG. 17 is an XVII-XVII arrow view of the fabric spreading and conveying machine of FIG. 16.

符号の説明Explanation of symbols

１は投入装置、２は左右展張装置、３は吸引装置、４は受渡し装置、５は搬送装置、６は布類背面拡張装置、７は前面押付装置、８はコントローラ、１１は投入チャック、２１は受取チャック、２２は左右動装置、２３はサーボモータ、６１は背面側拡張ベルト、７１は接触部材（強制拡張部材）、７２は左右動装置、７２ａはサーボモータ、７３は接離移動装置、７５は前面側拡張ベルト、Ｓは布類、Ｓａは布類角部、Ｓｂは布類上辺部、Ｓｃは布類外側部寄り前面、Ｓｄは布類外端部である。   1 is a loading device, 2 is a left / right stretching device, 3 is a suction device, 4 is a delivery device, 5 is a conveying device, 6 is a cloth rear surface expansion device, 7 is a front pressing device, 8 is a controller, 11 is a loading chuck, 21 Is a receiving chuck, 22 is a lateral movement device, 23 is a servo motor, 61 is a rear side expansion belt, 71 is a contact member (forced expansion member), 72 is a lateral movement device, 72a is a servo motor, 73 is a contact / separation movement device, 75 is a front side expansion belt, S is a cloth, Sa is a cloth corner, Sb is a cloth upper side, Sc is a front surface near the cloth outer side, and Sd is a cloth outer end.

Claims (3)

２枚重ね部分を有する大面積の布類（Ｓ）の一辺の両端角部（Ｓａ，Ｓａ）をそれぞれ掴持した状態で所定高位置まで吊上げ、その布類の各角部（Ｓａ，Ｓａ）を掴持した左右一対のチャック（２１，２１）を左右動装置（２２）で左右に離間させて布類（Ｓ）を吊上げ状態で展張させた後、その展張吊上げ布類（Ｓ）を次工程側に搬送させ得るようにした布類展張搬送機であって、
前記左右動装置（２２）にはサーボモータ（２３）を使用している一方、
前記展張吊上げ布類（Ｓ）の背面側に、該布類背面に摺接して布類背面側を左右外側に拡張させる拡張ベルト（６１）を有する左右一対の布類背面拡張装置（６，６）を設け、
前記各拡張ベルト（６１，６１）に対面する位置に、前記展張吊上げ布類（Ｓ）の左右外側部寄り前面（Ｓｃ，Ｓｃ）をそれぞれ各拡張ベルト（６１，６１）側に押付ける左右一対の前面押付装置（７，７）を配置し、
さらに前記各前面押付装置（７，７）は、前記各拡張ベルト（６１，６１）の前面にある展張吊上げ布類（Ｓ）の前面に接触する接触部材（７１）と、該接触部材（７１）を正面視において展張吊上げ布類（Ｓ）の左右外側部寄り前面（Ｓｃ）に対面する対面位置と展張吊上げ布類（Ｓ）の左右外端部（Ｓｄ，Ｓｄ）より外側の退避位置との間で左右に進退させる左右進退装置（７２）と、前記接触部材（７１）を拡張ベルト（６１）前面にある展張吊上げ布類（Ｓ）の前面から離間する離間位置と該展張吊上げ布類（Ｓ）の前面に接触する接触位置との間で前後に移動させる接離移動装置（７３）とをそれぞれ備え、
前記左右進退装置（７２）には前記各接触部材（７１，７１）の左右進退量を調整し得るものを使用しているとともに、
前記各左右動装置（２２，２２）の各サーボモータ（２３，２３）で前記各チャック（２１，２１）を布類上辺部（Ｓｂ）が左右に緊張するまで離間させたときの各サーボモータ駆動量データをコントローラ（８）に入力し、該コントローラ（８）により前記左右進退装置（７２）に対して前記各接触部材（７１，７１）を前記各サーボモータ駆動量データに対応する移動量だけ移動させるような制御を行わせるようにしている、
ことを特徴とする布類展張搬送機。 Each corner (Sa, Sa) of a large-sized cloth (S) having two overlapping portions is lifted up to a predetermined height while holding both end corners (Sa, Sa) on one side. After the pair of left and right chucks (21, 21) gripping the fabric are separated from each other by the left and right moving device (22) and the fabric (S) is stretched in a lifted state, the stretched lifting fabric (S) is A cloth spreading and conveying machine that can be conveyed to the process side,
While the left and right movement device (22) uses a servo motor (23),
A pair of left and right cloth rear surface expansion devices (6, 6) having expansion belts (61) slidingly contacting the rear surface of the cloth and extending the rear surface side of the cloth to the left and right outer sides on the rear surface side of the stretched lifting cloth (S). )
A pair of left and right sides pressing the front surfaces (Sc, Sc) closer to the left and right outer portions of the stretched lifting fabric (S) against the respective expansion belts (61, 61) at positions facing the respective expansion belts (61, 61). The front pressing device (7, 7)
Further, each of the front surface pressing devices (7, 7) includes a contact member (71) that contacts the front surface of the stretched lifting cloth (S) on the front surface of each expansion belt (61, 61), and the contact member (71 ) In the front view, the facing position facing the front surface (Sc) near the left and right outer portions of the extended lifting cloth (S) and the retracted position outside the left and right outer ends (Sd, Sd) of the extending lifting cloth (S) A left / right advance / retreat device (72) that moves forward and backward between the two, a separation position in which the contact member (71) is separated from the front surface of the extended lifting cloth (S) on the front surface of the expansion belt (61), and the extended lifting cloth A contact / separation moving device (73) that moves back and forth between the contact position contacting the front surface of (S),
While using the thing which can adjust the amount of right-and-left advance / retreat of each said contact member (71,71) for the said right-and-left advance / retreat apparatus (72),
Each servo motor when the respective chucks (21, 21) are separated by the servo motors (23, 23) of the respective left and right moving devices (22, 22) until the upper side portion (Sb) of the cloth is strained to the left and right. Drive amount data is input to the controller (8), and the controller (8) moves the contact members (71, 71) to the left / right advance / retreat device (72) corresponding to the servo motor drive amount data. I'm trying to make the control move only
This is a fabric stretcher. 請求項１において、
左右進退装置（７２）は、単一のサーボモータ（７２ａ）で両接触部材（７１，７１）を同時に左右逆側に移動させるようにしている、
ことを特徴とする布類展張搬送機。 In claim 1,
The left / right advance / retreat device (72) is configured to move both contact members (71, 71) simultaneously to the left and right sides by a single servo motor (72a).
This is a fabric stretcher. 請求項１又は２において、
各接触部材（７１，７１）は、各布類背面拡張装置（６，６）の各拡張ベルト（６１，６１）の前面にある展張吊上げ布類（Ｓ）の左右外側部寄り前面（Ｓｃ，Ｓｃ）に摺接して該左右外側部寄り前面をそれぞれ強制的に左右外側に拡張させ得る強制拡張部材を使用している、
ことを特徴とする布類展張搬送機。 In claim 1 or 2,
Each contact member (71, 71) is a front surface (Sc, S) of the stretch lifting fabric (S) on the front surface of each expansion belt (61, 61) of each fabric rear surface expansion device (6, 6). Using a forcible expansion member that is capable of slidably contacting Sc) and forcibly expanding the front surfaces near the left and right outer portions to the left and right outer sides, respectively.
This is a fabric stretcher.
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