JPS6335287A - Differential belt feed apparatus of sewing machine - Google Patents
Differential belt feed apparatus of sewing machineInfo
- Publication number
- JPS6335287A JPS6335287A JP17959086A JP17959086A JPS6335287A JP S6335287 A JPS6335287 A JP S6335287A JP 17959086 A JP17959086 A JP 17959086A JP 17959086 A JP17959086 A JP 17959086A JP S6335287 A JPS6335287 A JP S6335287A
- Authority
- JP
- Japan
- Prior art keywords
- cloth
- needle
- belt
- presser foot
- belts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009958 sewing Methods 0.000 title claims description 31
- 239000004744 fabric Substances 0.000 claims description 106
- 238000001514 detection method Methods 0.000 claims description 35
- 230000003028 elevating effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はミシンのベルト送り装置に関し、特に布送り
方向との直交方向において、針穴の両側に布送り方向に
平行に且つ上下に配置した送りベルトを各別に同一また
は異なる速度で駆動して、直線送りあるいは曲線送りを
可能にするものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a belt feeding device for a sewing machine, and in particular, in a direction orthogonal to the cloth feeding direction, belt feeding devices are arranged on both sides of a needle hole in parallel to the cloth feeding direction and above and below. The feed belts are individually driven at the same or different speeds to enable linear feed or curved feed.
ミシンの布送りのためにベルトを用い、しかも針穴の両
側に平行に２本の布送りベルトを配置した技術として、
例えば実開昭第５８−１４３６７６号の公報に記載され
たものがある。This technology uses a belt to feed the fabric of a sewing machine, and two fabric feeding belts are placed parallel to each other on both sides of the needle hole.
For example, there is one described in Japanese Utility Model Application Publication No. 58-143676.
しかしながら、この装置の２本の布送りベルトは駆動モ
ータに軸着した１個の回転体としてのプーリに共通して
掛けられており、２本のベルトの送り量は同じであるた
めに、送りはベルトの長手方向への直線送りとなり曲線
送りをすることができなかった。特に曲線で形成された
布端から一定距離を離隔して縫製する場合や、二枚の布
を上下に重ねて、布縁を合せながら綿製する場合には、
作業者が縫製中適宜に布を左右に移動させなければなら
ず、高速で縫うためには高い技能が要求されるなど、縫
製能率を高めることがむずかしかった。However, the two cloth feed belts of this device are commonly hung on a pulley as a single rotating body that is attached to the drive motor, and the feed amount of the two belts is the same. In this case, the belt was fed in a straight line in the longitudinal direction, and curved feeding was not possible. Especially when sewing at a certain distance from the curved edge of the fabric, or when sewing two pieces of fabric one above the other and making cotton while aligning the fabric edges,
It has been difficult to increase sewing efficiency, as the worker has to move the cloth from side to side as needed while sewing, and high-speed sewing requires a high level of skill.
この発明は上記問題点を解決するものであり、下方に設
けた２本の送りベルト、または上下に各々２本の送りベ
ルトを配置して、それぞれ各別に駆動して差動送り可能
とし、適宜に直線送りまたは曲線送りを自動的に可能に
することにより、布縁の形状に合せて縫製したり、重ね
た布の布縁を合せながら縫製することができることを目
的とする。This invention solves the above-mentioned problems by disposing two feeding belts at the bottom or two feeding belts at the top and bottom, and driving each belt separately to enable differential feeding. To automatically enable linear feeding or curved feeding, the object is to be able to sew according to the shape of the edge of cloth or to sew while matching the edges of overlapped cloth.
このため、２本の下送りベルトにそれぞれ各別に駆動手
段を設けるとともに、布縁形状を検知する霜検知手段に
関連させて、この駆動手段による送りベルトの差動送り
量を制御して、布端形状に合せて直線送りまたは曲線送
りを自動的に行わせるものである。For this reason, a drive means is provided for each of the two lower feed belts, and the differential feed amount of the feed belts by this drive means is controlled in conjunction with a frost detection means for detecting the shape of the edge of the fabric. It automatically performs linear or curved feeding according to the end shape.
また、上下に重ね合せた布に対して布縁のズレを検知し
ながら、上下の布に対応して上下に送りベルトを設けて
各布をそれぞれ直線送りはもちろん曲線送り可能とし、
上下布の左右の重ね合せズレを修正するようにこの駆動
手段を制御するものである。In addition, while detecting the deviation of the edges of cloth stacked one above the other, feeding belts are installed above and below corresponding to the upper and lower cloths, allowing each cloth to be fed not only in a straight line but also in a curved line.
This driving means is controlled so as to correct the left and right overlapping deviation of the upper and lower cloths.
〔実 施 例〕 以下、本発明の一実施例を図面に基づいて説明する。〔Example〕 Hereinafter, one embodiment of the present invention will be described based on the drawings.
この実施例は上下に重ね合せた２枚の布に対応ベルト送
りとしたものである。In this embodiment, belt feeding is used to feed two pieces of cloth stacked one above the other.
第１図、＠２図において、１はミシン頭部の機枠、２は
ミシンベツド、３は主軸（図示しない）に連動して上下
動し、下端に針４を装着した針棒。In Figures 1 and 2, 1 is the machine frame of the sewing machine head, 2 is the sewing machine bed, and 3 is a needle bar that moves up and down in conjunction with a main shaft (not shown) and has a needle 4 attached to its lower end.
５は中央に針４が挿通する孔部６を形成い後述する針板
に弾性力を押圧する布押え足、７はベツド２に装着され
、針４が上下に挿通する針穴８が開口した針板、９はボ
ビンを収納した釜である。Reference numeral 5 denotes a presser foot which has a hole 6 in the center through which the needle 4 is inserted and presses an elastic force against the needle plate, which will be described later.Reference numeral 7 is attached to the bed 2 and has a needle hole 8 through which the needle 4 is inserted vertically. The throat plate 9 is a hook that houses a bobbin.
Ａは前記孔部６の送り方向左側に配置した無端の上送り
ベルト、Ｂは同右側に配置した無端の上送りベルトであ
り、これら上送りベルトＡ、Ｂは、布送り方向に直交す
る一同定軸線を中心にして各別に回動可能とし前記孔部
６を中心に布送り方向に前後して布押え足下方に装着し
たプーリ２０．ｚ。A is an endless upper feeding belt placed on the left side of the hole 6 in the feeding direction, and B is an endless upper feeding belt placed on the right side of the hole 6. Pulleys 20 are rotatable individually around the identification axis and are mounted below the presser foot so as to move back and forth in the cloth feeding direction around the hole 6. z.
２ｏｂ、２１ ａ、、２１ ｈと、ミシン頭部に装着さ
レタハネ２２（Ｚ、 ２’）ｂにより回動付勢された張
力調整レバー２３ａ、２３Ａの先端に配置されたプーリ
２４ａ、２４Ａと、ミシン頭部に装着されベルトを送り
駆動するステッピングモータ等の間欠駆動可能な駆動手
段６３．６４ （第１０図）に軸着された駆動ブー！Ｊ
２５ｃ、２！５Ｉ５と、上送りベルトＡ、Ｂを案内する
ように頭部機枠１に装着された補助ブー’）２６ａ、２
６ｈとに掛は渡されている。2ob, 21a, 21h, and pulleys 24a, 24A arranged at the tips of tension adjustment levers 23a, 23A, which are attached to the head of the sewing machine and are rotatably biased by a reciprocating lever 22(Z, 2')b. The drive boo is mounted on the head of the sewing machine and is pivoted to a drive means 63, 64 (Fig. 10) that can be driven intermittently, such as a stepping motor that feeds and drives the belt! J
25c, 2!5I5 and the auxiliary boo') 26a, 2 mounted on the head machine frame 1 to guide the upper feed belts A and B.
The 6th hour and the evening have been passed.
Ｃは針穴８の送り方向左側に配置した無端の下送りベフ
しト、Ｄは同右側に配置した無端の下送りベルトであり
、これら下送りベルトｃ、Ｉ）は、布送り方向に直交す
る一固定軸線を中心にして回動可能に前記針穴８の布送
り方向前方の前記べｌｙ） ）２下方の機枠に配置され
、布送り方向゛１直交する同一軸線」二に各別に回動可
能に装着した前方ブー！Ｊ３０ｃ、３０ｄと、前記針穴
８から布送り方向後方の前記ベット２下方の機枠に配置
され、がっ機枠に装着じたバネ６１により回動付勢され
た張力調整レバー３３の先端に布送り方向と直交する同
一軸線上に各別に回動可能に装着された後方プーリ３４
ｃｒ ５４ ｄと、これら下送りベルトＣ１Ｄを各
別に送り駆動するステッピングモータ等の間欠駆動可能
な駆動手段６５．６６ （第１０図）に軸着された駆動
ブーＩＪ３５ｃ、３５ｄと、下送りベルトＣ２Ｄを案内
するように機枠に装着された補助プーリ３６ ｃ ＋
３６ ｔＬとに掛は渡されている。C is an endless bottom feed belt placed on the left side of the needle hole 8 in the feeding direction; D is an endless bottom feed belt placed on the right side; these bottom feed belts c and I) are perpendicular to the cloth feeding direction. (1) Rotatably about a fixed axis, the needle hole (8) is arranged in the lower machine frame in the forward direction of the cloth feed direction, and is arranged in the cloth feed direction (1) on the same axis perpendicular to each other. Front boo attached so that it can rotate! J30c, 30d, and the tip of the tension adjustment lever 33, which is arranged on the machine frame below the bed 2 behind the needle hole 8 in the cloth feeding direction, and is biased to rotate by a spring 61 attached to the machine frame. Rear pulleys 34 are individually rotatably mounted on the same axis perpendicular to the cloth feeding direction.
cr 54 d, drive boos IJ35c, 35d pivoted to drive means 65, 66 (Fig. 10) that can be driven intermittently, such as stepping motors that feed and drive these lower feed belts C1D separately, and lower feed belts C2D. An auxiliary pulley 36 c + is attached to the machine frame to guide the
36 tL and the bridge have been passed.
上記駆動手段６５．６６は後述する針位置検出手段６２
（第１０図）による針４が布よりも上方に位置している
ことを検知した時に駆動可能とし、その駆動量（布送り
量）は、作業者による送り量の設定に基づき差動送り制
御する制御手段６ｏの制御により調整されるものである
。The driving means 65 and 66 are needle position detecting means 62 which will be described later.
(Figure 10) When it is detected that the needle 4 is located above the cloth, it can be driven, and the driving amount (fabric feed amount) is controlled by differential feed based on the feed amount setting by the operator. It is adjusted by the control of the control means 6o.
４０は前記下送りベルトｃ、Ｄを針板７上方に移動可能
とするようにベット２の下方に配置した昇降手段である
。この昇降手段４０は、中央部を針穴８の両側に配置さ
れた下送りベル）（：’、ｎの下面に当接するようにベ
ルトの長手方向に平行に配置し、一端を送り方向と直交
する一同定軸線を中心に上下に回動可能に支軸４１に遊
嵌し他端に二叉部を形成した昇降腕４３と、主軸に連動
する上下送り軸４２と、この上下送り軸４２に軸着され
たレバー４３と、前記昇降腕４３の二叉部に係合しレバ
ー４３と回動可能に装着された角駒４５とよりなる。Reference numeral 40 denotes a lifting means arranged below the bed 2 so that the lower feed belts c and D can be moved above the throat plate 7. This elevating means 40 has a central portion arranged parallel to the longitudinal direction of the belt so as to contact the lower surface of the lower feed bells (:', n) arranged on both sides of the needle hole 8, and one end perpendicular to the feeding direction. an elevating arm 43 that is loosely fitted onto a support shaft 41 and has a bifurcated portion at the other end so as to be rotatable up and down about one axis; a vertical feed shaft 42 that is linked to the main shaft; It consists of a lever 43 that is pivoted, and a square piece 45 that engages with the forked portion of the lifting arm 43 and is rotatably attached to the lever 43.
この昇降手段４０は主軸との関連により、針が布よりも
上方位置にあるときに下送りベルトＣ２Ｄを上方に押上
げて上送りベルトＡ、Ｂと協働して布を挟持するベルト
上位置（第６図）と、針が布に刺っている間は布の挾持
状態を解放するベルト下位置（第４図）とに移動可能に
調整されている。Due to its relationship with the main shaft, this elevating means 40 pushes the lower feed belt C2D upward when the needle is at a position above the cloth, and cooperates with the upper feed belts A and B to position the belt above the cloth. (Fig. 6) and a position below the belt (Fig. 4) where the cloth is released while the needle is stuck in the cloth.
第５〜７図において、５０は前記ベル）Ｂ、 Ｄの作業
者右側のベツド２に装着された布検知手段であり、両面
に光反慇面を形成した反射板５１によって上下に重ねた
布を分離し、その上面作業者左側に発光ダイオードＰ１
．同右側に発光ダイオードＰ２を反射板５１に向けて装
着され、反射板５１の下面左側に発光ダイオードｐｓ、
右側に発光ダイオードＰ４を反射板５１に向けて装着さ
れている。そして、各発光ダイオードに対応して反射板
５１から反射された検知光を検知するフォト６０は前記
上下逆りベル）、４−７）より布送り方向後方にベット
２から上方に離隔してベット２と平行に配置された分離
板であり、上下に合わせた布の中間に介在させて布を上
下に分離するものである。In Figs. 5 to 7, 50 is a cloth detecting means attached to the bed 2 on the right side of the workers in bells) B and D, and the cloth is stacked one above the other by a reflecting plate 51 having a light-reflecting surface on both sides. Separate the light emitting diode P1 on the upper side to the left of the worker.
．． A light emitting diode P2 is mounted on the right side facing the reflecting plate 51, and a light emitting diode ps is mounted on the left side of the lower surface of the reflecting plate 51.
A light emitting diode P4 is mounted on the right side with the light emitting diode P4 facing the reflecting plate 51. The photo 60 that detects the detection light reflected from the reflector 51 corresponding to each light emitting diode is mounted on the bed 2 at a distance rearward in the cloth feeding direction from the above-mentioned upside-down bell) and 4-7) and upwardly from the bed 2. 2 is a separating plate placed in parallel with the upper and lower cloths, and is interposed between the upper and lower cloths to separate the cloths into upper and lower parts.
第１０図は本実施例の制御プロヅク図である。FIG. 10 is a control product diagram of this embodiment.
６０は本装置の制御情報および入力情報を記憶するメモ
リをもち、これにもとづいて各駆動信号を発する制御手
段、６１はミシンの起動ペダルに連動するスタートスイ
ッチ、６２はミシン主軸の回転位置に関連して針が布に
刺っている下位置と針が布よりも上方にある上位置とを
検出する針位置検出手段、５０は前記検知点５１〜Ｓ４
での検知信号を発する布検知手段であり、スタートスイ
ッチ６１と針位置検出手段６２とともに前記制御手段６
０への入力情報源である。Reference numeral 60 has a memory for storing control information and input information of the present device, and control means for issuing each drive signal based on the memory; 61 is a start switch that is linked to the starting pedal of the sewing machine; and 62 is related to the rotational position of the main shaft of the sewing machine. needle position detection means for detecting the lower position where the needle is stuck into the cloth and the upper position where the needle is above the cloth; 50 denotes the detection points 51 to S4;
It is a cloth detecting means that emits a detection signal at
This is the source of input information to 0.
６３．６４はそれぞれ上ベルトＡ、Ｂを駆動する駆動す
る駆動手段、６５．６６はそれぞれ下ベル）（？、Ｄを
駆動する駆動手段、６７は布押え足５を上方へ移動可能
とする押え上げソレノイド、６８はミシン主軸を回転さ
せる主モータであり、駆動手段６３〜６６、押え上げソ
レノイド６７とともに制御手段６０からの駆動信号によ
って駆動される。63 and 64 are driving means for driving the upper belts A and B, respectively, 65 and 66 are driving means for driving the lower belts) (? and D, respectively), and 67 is a presser foot that allows the presser foot 5 to move upward. A lifting solenoid 68 is a main motor that rotates the main shaft of the sewing machine, and is driven together with drive means 63 to 66 and a presser foot lifting solenoid 67 by a drive signal from the control means 60.
第８図、第９図は縫製の一例を示すものであり、下送り
ベル）（？、Ｄによって送られる布の布縁を検知手段５
０の検知点５３．５４で検知しながら下送りベルトＣ，
Ｄを適宜に駆動するものである。8 and 9 show an example of sewing, in which the edge of the cloth fed by the lower feed bell) (?, D) is detected by the detection means 5.
While detecting at the detection points 53 and 54 of 0, the lower feed belt C,
This is to drive D appropriately.
Ｓ３は布の有無を検知し、Ｓ４は布縁の有無を検知する
ものとし、検知点Ｓ４から布送り方向の延長線（基準線
）と針穴８との間隔Ｗが布縁と縫製による縫いｎ線との
間隔になるように布を割り「する。第８図に示すように
検知点Ｓ４に浄が掛かる場合には、下送りベル）Ｃ，Ｉ
）のそれぞれの送掛からない場合にはその相対送り量を
ｃ （ｄと差動送りするように駆動’ｆ段６５．６６が
駆動される。S3 detects the presence or absence of cloth, and S4 detects the presence or absence of a cloth edge, and the distance W between the extension line (reference line) in the cloth feeding direction from the detection point S4 and the needle hole 8 is the same as the cloth edge and the sewing. Divide the cloth so that it is spaced from the n line.If the detection point S4 is cleansed as shown in Fig. 8, the lower feed bell) C, I
), the drive 'f stages 65 and 66 are driven so that the relative feed amount is differentially fed with c (d).
これを、第１１図においてミシンの縫製作業の開始時点
から説明すると、電源をＯＮ時に制御手段６０は初期値
に設定され、作業者が設定した布送り量Ｐがメモリに読
み込まれるとともに押え上げソレノイド６７がＯＮされ
て布押え５が上昇する。作業者が上布を検知点Ｓ１上に
下布を検知点ＳＸ上に置くと、制御手段は布がセットさ
れたことを判断し、さらに起動ペダルが踏まれてスター
トスイッチ６１がＯＮされると、前記押え上げソレノイ
ド６７がＯＦＦされ布押え５が下降するとともにミシン
モータ６８が駆動され、縫製が開始する。To explain this from the start of the sewing work of the sewing machine in FIG. 67 is turned on and the presser foot 5 is raised. When the operator places the upper cloth on the detection point S1 and the lower cloth on the detection point SX, the control means determines that the cloth has been set, and further when the start pedal is depressed and the start switch 61 is turned on. Then, the presser foot lifting solenoid 67 is turned off, the presser foot 5 is lowered, and the sewing machine motor 68 is driven to start sewing.
このとき針位置検出手段６２からの針上位置信号のとき
に昇降手段４０の昇降腕４３が下送りベルトＣ２Ｄをベ
ルト上位置に移動させて上下布を挾持するとともに、ベ
ルト駆動手段６３〜６６が脱走した布送り量Ｐに基づい
て差動量に対応した駆動がなされる。At this time, when the needle up position signal is received from the needle position detection means 62, the elevating arm 43 of the elevating means 40 moves the lower feeding belt C2D to the belt upper position to sandwich the upper and lower fabrics, and the belt driving means 63 to 66 Drive corresponding to the differential amount is performed based on the escaped cloth feed amount P.
針下位置信号のときは、昇降腕４３がベルト下位置に移
動し、上下布は布押え足５の弾性力により針板７に圧接
され、縫い目が形成される。検知点Ｓ゛１および／また
はＳ４に布縁が掛り検知信号の強さが中間レベルのとき
は、上・下送りベルトＡ、Ｂおよび／またはＣ，Ｄの送
り量は共に等しく送り量Ｐになるように駆動され、布は
直線送りとなる。When the needle down position signal is received, the elevating arm 43 moves to the belt below position, and the upper and lower fabrics are pressed against the throat plate 7 by the elastic force of the presser foot 5, and a seam is formed. When the edge of the cloth is caught at the detection point S1 and/or S4 and the strength of the detection signal is at an intermediate level, the feed amounts of the upper and lower feed belts A, B and/or C, D are equal to the feed amount P. The cloth is fed in a straight line.
検知点ｓ２および／またはｓ４に布が掛り布検知信号が
出力されたときは、上・下送りベルトＡ。When the cloth is applied to the detection points s2 and/or s4 and a cloth detection signal is output, the upper/lower feed belt A is moved.
Ｂおよび／またはＣ，Ｄの送り量は差動送りとしてａ＞
ｂおよび／またはｃ ’＞ ｄ、とし、逆に布検知信号
が出力されない場合には差動送りとしてａくｂおよび／
またはｃ （ｔＬとなるように駆動され、布は設定送り
量ｐを保ちながら曲線送りされる。The feed amount of B and/or C, D is a> as a differential feed.
If b and/or c'> d, and conversely, if the cloth detection signal is not output, differential feed is performed.
or c (tL), and the cloth is fed in a curve while maintaining the set feed amount p.
このようにして、」１下の布を共に布縁から一定距離Ｗ
を保って縫製することが可能になり、布縁の上下合せを
可能にする。In this way, move the lower cloth together at a certain distance W from the edge of the cloth.
This makes it possible to sew while keeping the edges of the fabric in place, making it possible to align the top and bottom edges of the fabric.
縫製が進行して、検知手段５０の検知点Ｓ１またはＳ３
から布がなくなった場合には、制御手段６０は縫製終了
と判断してミシンモータ６８を停止し、糸切りを行う。As sewing progresses, the detection point S1 or S3 of the detection means 50
When the cloth runs out, the control means 60 determines that the sewing is finished, stops the sewing machine motor 68, and cuts the thread.
上記実施例では、布送りベルトを上下に配置して、重ね
た布の布合せをする場合について説明したが、布縁が曲
線上に形成された一枚の布に対して、布縁から一定間隔
を保って布縁と平行に縫製する場合には次のような構成
とすることにより可能である。In the above embodiment, a case was explained in which the fabric feed belts are arranged vertically to align stacked fabrics. However, for a piece of fabric with a curved edge, When sewing parallel to the edge of the fabric while maintaining the interval, it is possible to do so by using the following configuration.
即ち、送りベルトを下方にのみ配置して、上送りベルト
Ａ、Ｂを取り払い、昇降腕４３がベルト上位置に移動し
た時に、送りベルトＣ２Ｉ）が布押え足５の下面と協働
して布を挾持するようにし、布検知手段５０には発光ダ
イオードｐｓ、ｐ４及びフォトトランジスタ（！ ６＋
Ｑ’のみを使用するようにして布縁を検知し、前述し
たようにこの布検知信号に対応してベルト駆動手段６５
．６６を各別に駆動して適宜に差動送りするものである
。That is, by disposing the feed belt only at the bottom and removing the upper feed belts A and B, when the elevating arm 43 moves to the position above the belt, the feed belt C2I) cooperates with the lower surface of the presser foot 5 to move the cloth. The cloth detection means 50 includes light emitting diodes ps, p4 and a phototransistor (!6+
The edge of the cloth is detected by using only Q', and the belt driving means 65 is activated in response to this cloth detection signal as described above.
．． 66 are driven separately and differentially fed as appropriate.
本発明の構成、作用は以上の通りであり、下送りベルト
を平行に２本配置して各別に駆動可能としたことにより
、布を曲線送り可能とし、その差動量を大きくすること
により急な曲線送りも可能である。The structure and operation of the present invention are as described above, and by arranging two lower feed belts in parallel and making it possible to drive each separately, it is possible to feed the cloth in a curved line, and by increasing the differential amount, it is possible to feed the cloth in a curved manner. Curvilinear feed is also possible.
そして、２本の送りベルトの送り景制御によって布送り
と、布の方向制御を同時に可能としたことによって布送
りと、布の方向制御を同時に可能としたことにより、従
来の送り装置と、布の送り方向制御装置とを各別に設け
る場合と比較すると、とくに急な曲線送り時に布にむり
な力が働かず、きわめてスムーズな曲線送りが実現でき
る。By controlling the feed pattern of the two feed belts, it is possible to simultaneously feed the cloth and control the direction of the cloth. Compared to the case where separate feeding direction control devices are provided for each, no excessive force is applied to the cloth especially during steep curve feeding, and extremely smooth curve feeding can be achieved.
さらに、この駆動手段を布検知手段と組合せることによ
り、布縁形状を読み込み、この布縁形状ら一定間隔を保
って高速で自動的に縫製可能である。Furthermore, by combining this driving means with a cloth detecting means, it is possible to read the shape of the cloth edge and automatically sew at high speed while maintaining a constant distance from the cloth edge shape.
また、この送りベルトを上下に配置して、上下の布を各
別に曲線送り可能とし、各上下の布の布縁を検知して駆
動手段を制御することにより、上下の布縁の重ね合せズ
レを自動的に修正して正確に重ね合せるとともに、布縁
から所定間隔を保って縫製可能である。In addition, by arranging this feeding belt at the top and bottom, it is possible to feed the upper and lower cloths in a curved line separately, and by detecting the cloth edges of each upper and lower cloth and controlling the driving means, it is possible to prevent the overlapping misalignment of the upper and lower cloth edges. It is possible to automatically correct and overlay accurately, and also to sew while maintaining a predetermined distance from the edge of the fabric.
第１図は本発明の一実施例を示すミシン、第２図は第１
図のミシンの部分断面図、第９図は昇降腕がベルト上位
置を示す図、第４図は同ベルト下位置を示す図、第５図
は布検知手段と分離板の配置を示す図、第６図は布検知
手段の斜視図、第７図は第５図に示す布検知手段のＸ−
Ｘ線断面図、第８図、第９図は布の移動方向を説明する
図、第１０図は制御ブロック図、第１１図は制御フロー
チャートである。Fig. 1 shows a sewing machine according to an embodiment of the present invention, and Fig. 2 shows a sewing machine according to an embodiment of the present invention.
FIG. 9 is a diagram showing the position of the elevating arm above the belt, FIG. 4 is a diagram showing the position below the belt, FIG. 5 is a diagram showing the arrangement of the fabric detection means and the separating plate, FIG. 6 is a perspective view of the cloth detection means, and FIG. 7 is a perspective view of the cloth detection means shown in FIG.
An X-ray sectional view, FIGS. 8 and 9 are diagrams for explaining the moving direction of the cloth, FIG. 10 is a control block diagram, and FIG. 11 is a control flowchart.
Claims (2)
、下端に糸を伴う針を装着した針棒と、布押え足の下面
に対向して水平に配置し、中央部に前記針が挿通する針
穴を開口した針板と、前記主軸の回転位置に関連して針
が布に刺つている下装置と針が布上方にある上位置とを
検出する針位置検出手段と、 前記布押え足下面に対向して針板上面において突出可能
とし、前記針穴の布送り方向との直交方向両側に沿いそ
れぞれ布送り方向と平行に対向配置し、長手方向に各別
に送り移動可能とした２本の下送りベルトと、 前記針位置検出手段により前記上位置のときは下送りベ
ルト上面が針板上面より高く、前記下位置のときはベル
ト上面が針板上面よりも低くなるように、下送りベルト
を針の上下位置に関連して昇降する昇降手段と、 前記針位置検出手段による上位置のときは前記２本の下
送りベルトを各別に駆動可能とし、下位置のときは２本
の下送りベルトの駆動を停止する駆動手段と、 布送り方向手前に布送り方向と直交方向に２か所の布の
検知点を備え、一方の検知点で布の有無を検知し、他方
の検知点で布縁の有無を検知して左右方向の布のズレを
求めるように機枠に配置した布検知手段と、 前記布検知手段によつて求めた布のズレを修正するよう
に前記駆動手段の駆動量を各別に制御する制御手段と、 を備えたことを特徴とするミシンの差動ベルト送り装置
。(1) A needle bar is supported on the machine frame so as to be movable up and down in conjunction with the main shaft of the sewing machine, and a needle with a thread attached to its lower end is placed horizontally opposite the lower surface of the presser foot. a needle plate having an open needle hole through which the needle is inserted, a needle position detection means for detecting a lower device in which the needle is stuck into the cloth and an upper position in which the needle is above the cloth in relation to the rotational position of the main shaft; The presser foot is capable of protruding from the upper surface of the throat plate opposite to the lower surface of the presser foot, and is arranged parallel to the cloth feeding direction along both sides of the needle hole in a direction orthogonal to the cloth feeding direction, and can be fed separately in the longitudinal direction. and two lower feeding belts, and the needle position detecting means so that the upper surface of the lower feeding belt is higher than the upper surface of the throat plate when in the upper position, and the upper surface of the belt is lower than the upper surface of the throat plate when in the lower position. a lifting means for raising and lowering the lower feed belt in relation to the vertical position of the needle; and a means for driving the two lower feed belts separately when the needle position detecting means indicates the upper position, and when the needle position is at the lower position, It is equipped with a driving means for stopping the driving of the two lower feed belts, and two cloth detection points in a direction orthogonal to the cloth feeding direction in front of the cloth feeding direction, and one of the detection points detects the presence or absence of cloth. a cloth detecting means disposed on the machine frame to detect the presence or absence of a cloth edge at the other detection point to determine the deviation of the cloth in the left-right direction; A differential belt feeding device for a sewing machine, comprising: control means for individually controlling the drive amount of the drive means.
、下端に糸を伴う針を装着した針棒と、布押え足の下面
に対向して水平に配置し、中央部に前記針が挿通する針
穴を開口した針板と、前記主軸の回転位置に関連して針
が布に刺つている下位置と針が布上方にある上位置とを
検出する針位置検出手段と、 前記布押え足下面に対向して針板上面において突出可能
とし、前記針穴の布送り方向との直交方向両側に沿いそ
れぞれ布送り方向と平行に対向配置し、長手方向に各別
に送り移動可能とした２本の下送りベルトと、 布押え足下面において前記２本の下送りベルトにそれぞ
れ対向して布送り方向と平行に配置し、長手方向に各別
に移動可能に布押え足に支持して、この布押え足ととも
に上下動して前記下送りベルトを接離可能とした２本の
上送りベルトと、前記針位置検出手段により前記上位置
のときは下送りベルト上面が針板上面より高く前記下位
置のときはベルト上面が針板上面よりも低くなるように
、下送りベルトを針の上下位置に関連して昇降する昇降
手段と、 前記針位置検出手段による上位置のときは前記上・下４
本のベルトを各別に駆動し、下位置のときはこの上・下
送りベルトの駆動を停止する駆動手段と、 布送り方向手前に布送り方向と直交方向に２カ所の検知
点を備え、かつこれを上下に重ねた布に各別に設けて各
布を各別に検知可能に配列し、それぞれ一方の検知点で
布の有無を検知し、他方の検知点で布縁の有無を検知し
て、上下に重ねた布縁の左右方向のズレを各別に求める
ように機枠に配置した布検知手段と、 前記布検知手段によつて求めた布縁のズレを修正するよ
うに上下４本のベルトの駆動量を各別に制御する制御手
段と、 を備えたことを特徴とするミシンの差動ベルト送り装置
。(2) A needle bar is supported on the machine frame so as to be movable up and down in conjunction with the main shaft of the sewing machine, and has a needle with a thread attached to its lower end, and the needle bar is arranged horizontally opposite the lower surface of the presser foot. a needle plate with an open needle hole through which the needle is inserted; a needle position detection means for detecting a lower position where the needle is stuck into the cloth and an upper position where the needle is above the cloth in relation to the rotational position of the main shaft; The presser foot is capable of protruding from the upper surface of the throat plate opposite to the lower surface of the presser foot, and is arranged parallel to the cloth feeding direction along both sides of the needle hole in a direction orthogonal to the cloth feeding direction, and can be fed separately in the longitudinal direction. and two lower feed belts arranged parallel to the cloth feeding direction so as to face the two lower feed belts on the lower surface of the presser foot, and supported on the presser foot so as to be movable independently in the longitudinal direction. The two upper feed belts move up and down together with the presser foot so as to be able to approach and separate the lower feed belt, and the needle position detection means detects that the top surface of the lower feed belt is lower than the top surface of the throat plate when in the upper position. elevating means for raising and lowering the lower feed belt in relation to the vertical position of the needle so that the upper surface of the belt is lower than the upper surface of the throat plate when the needle is in the lower position; Top/Bottom 4
It is equipped with a driving means for driving each book belt separately and stopping the driving of the upper and lower feeding belts when they are in the lower position, and two detection points in the front direction in the cloth feeding direction in a direction perpendicular to the cloth feeding direction, and These are provided separately on each piece of cloth stacked one above the other, arranged so that each cloth can be detected separately, and one detection point detects the presence or absence of the cloth, and the other detection point detects the presence or absence of a cloth edge. A cloth detection means is arranged on the machine frame so as to determine the deviation in the left and right direction of the cloth edges stacked one above the other, and four upper and lower belts are arranged to correct the deviation of the cloth edges determined by the cloth detection means. A differential belt feeding device for a sewing machine, comprising: a control means for separately controlling the drive amount of each;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17959086A JPS6335287A (en) | 1986-07-30 | 1986-07-30 | Differential belt feed apparatus of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17959086A JPS6335287A (en) | 1986-07-30 | 1986-07-30 | Differential belt feed apparatus of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6335287A true JPS6335287A (en) | 1988-02-15 |
| JPH0315918B2 JPH0315918B2 (en) | 1991-03-04 |
Family
ID=16068387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17959086A Granted JPS6335287A (en) | 1986-07-30 | 1986-07-30 | Differential belt feed apparatus of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6335287A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01268590A (en) * | 1988-04-19 | 1989-10-26 | Pegasus Sewing Mach Mfg Co Ltd | Sewing method and its device |
| JPH01308585A (en) * | 1988-06-06 | 1989-12-13 | Yamato Sewing Mach Seizo Kk | Upper and lower feed gear working regulating method for overlock machine, and its device |
| DE102004019001B4 (en) * | 2003-04-21 | 2018-01-25 | Juki Corp. | Differential feed sewing machine |
| WO2018054539A1 (en) * | 2016-09-26 | 2018-03-29 | Pfaff Industriesysteme Und Maschinen Gmbh | Sewing machine comprising a puller device, and sewing method |
-
1986
- 1986-07-30 JP JP17959086A patent/JPS6335287A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01268590A (en) * | 1988-04-19 | 1989-10-26 | Pegasus Sewing Mach Mfg Co Ltd | Sewing method and its device |
| JPH01308585A (en) * | 1988-06-06 | 1989-12-13 | Yamato Sewing Mach Seizo Kk | Upper and lower feed gear working regulating method for overlock machine, and its device |
| DE102004019001B4 (en) * | 2003-04-21 | 2018-01-25 | Juki Corp. | Differential feed sewing machine |
| WO2018054539A1 (en) * | 2016-09-26 | 2018-03-29 | Pfaff Industriesysteme Und Maschinen Gmbh | Sewing machine comprising a puller device, and sewing method |
| CN110088373A (en) * | 2016-09-26 | 2019-08-02 | 普法夫工业***与机器公司 | Sewing machine and bind with mop device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0315918B2 (en) | 1991-03-04 |
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