JPH0128599B2 - - Google Patents
Info
- Publication number
- JPH0128599B2 JPH0128599B2 JP58205394A JP20539483A JPH0128599B2 JP H0128599 B2 JPH0128599 B2 JP H0128599B2 JP 58205394 A JP58205394 A JP 58205394A JP 20539483 A JP20539483 A JP 20539483A JP H0128599 B2 JPH0128599 B2 JP H0128599B2
- Authority
- JP
- Japan
- Prior art keywords
- sewing machine
- cloth
- fabric
- light
- flap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004744 fabric Substances 0.000 claims description 106
- 238000009958 sewing Methods 0.000 claims description 53
- 238000001514 detection method Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 11
- 108091008695 photoreceptors Proteins 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims 4
- 230000000903 blocking effect Effects 0.000 claims 2
- 239000011324 bead Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【発明の詳細な説明】
この発明は、布送り方向との交叉方向に配列し
た二本の針をもつミシンを有し、被縫布、玉縁布
及びフラツプ布をテーブル上面に沿いミシン縫合
部よりも布送り方向手前から先方へ所定長さ移動
し、その移動の間にミシンを駆動して二本の平行
縫目線を形成しながら縫目線間を布切りメスによ
りポケツト孔を切り開き、その後に切り開いたポ
ケツト孔の両端を一対のコーナーメスによりアン
グル状に切り込むようにした玉縁縫機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention has a sewing machine with two needles arranged in a direction perpendicular to the cloth feeding direction, and the sewing machine stitches the sewing material, welt cloth, and flap cloth along the top surface of the table. The sewing machine is moved a predetermined distance from the front to the front in the cloth feeding direction, and during this movement the sewing machine is driven to form two parallel seams and a pocket hole is cut between the seams with a cloth cutting knife. This invention relates to a welt sewing machine in which both ends of a cut pocket hole are cut in an angular shape by a pair of corner knives.
従来、上記した玉縁縫機としては、たとえば特
開昭57−11681号公報等に記載された機構即ち、
第１，２，３図に示した機構により行なわれてい
た。 Conventionally, the above-mentioned welt sewing machine has a mechanism described in, for example, Japanese Patent Application Laid-open No. 57-11681, ie,
This was done by the mechanism shown in Figures 1, 2, and 3.
Ａはミシンモータ１に主軸（図示しない）を連
結しテーブル２上に載置したミシンであり、下端
に一対の針N1，N2を支持し主軸に連動する針棒
３及び両針の中間部との対応位置において主軸に
連動して針板上方に出没する布切りメス４を有す
る。 A is a sewing machine in which a main shaft (not shown) is connected to a sewing machine motor 1 and placed on a table 2. A pair of needles N 1 and N 2 are supported at the lower end, and a needle bar 3 that is linked to the main shaft and a needle bar 3 located between the two needles are connected to the main shaft (not shown). It has a cloth cutting knife 4 that moves in and out above the throat plate in conjunction with the main shaft at a position corresponding to the needle plate.
Ｂは、先端に被縫布Ｗと玉縁布Ｐとフラツプ布
Ｆとを保持する押え部をもち、テーブル２上面に
沿い押え部を縫合点より手前に位置する待期位置
及び押え部に保持した両布の縫合開始予定点を縫
合点に対向する準備位置、並びに押え部を縫合点
より移動方向（布送り方向）先方へ通過して位置
する作用位置とにパルスモータ５に連動して移動
可能とした布転送手段、
Ｃは、布転送手段Ｂの待期位置において、押え
部との協働により被縫布Ｗに対し玉縁布Ｐを逆Ｔ
字状に折曲して折り重ね可能とする下方位置、及
びそれより斜め上方に離隔する上方位置とにエア
シリンダ等の駆動手段（図示しない）に連動して
移動可能とした折り重ね手段、
Ｄは、布送り方向線に沿い接離可能な一対のコ
ーナーメス６，７をもち、布転送手段Ｂが準備位
置から作用位置へ移動するとき従動し、作用位置
において布切りメス４により切り開かれたポケツ
ト孔の両端にアングル状の切り込みを形成するコ
ーナーメス手段である。 B has a presser foot section at its tip that holds the fabric to be sewn W, welt cloth P, and flap cloth F, and holds the presser foot section along the top surface of the table 2 at a waiting position located in front of the sewing point and at the presser foot section. The scheduled starting point for sewing both fabrics is moved in conjunction with the pulse motor 5 to a preparation position facing the sewing point, and to an operating position where the presser foot passes forward from the sewing point in the moving direction (fabric feeding direction). In the waiting position of the cloth transfer means B, the cloth transfer means C that enables the welt cloth P to be reversely T-shaped with respect to the cloth to be sewn W in cooperation with the presser foot.
Folding means movable in conjunction with a driving means (not shown) such as an air cylinder between a lower position where the folding member can be folded into a letter shape and an upper position spaced diagonally upward from the lower position; D has a pair of corner knives 6 and 7 that can move toward and away from each other along the cloth feeding direction line, and are driven when the cloth transfer means B moves from the preparation position to the working position, and the cloth is cut open by the cloth cutting knife 4 in the working position. This is a corner knife means for forming an angled cut at both ends of the pocket hole.
各機構をさらに詳述すれば、布転送手段Ｂは、
パルスモータ５に連結したねじ軸８及びねじ軸８
に平行な案内軸９に下方部を支持し且つねじ軸８
の回転に連動してその軸線方向に移動可能とした
移送台１０と、移送台１０の上方部に軸１１で支
持され、且つ図示しないが常にはばねの弾発力に
より上方に引き上げられると共に、エアシリンダ
E1（第１図）を介して下方に押し下げられるよう
にした一組のクランプ腕１２，１２と、両クラン
プ腕１２，１２の自由端に固定した押え板１３，
１３と、押え板１３，１３の上方に離隔し固定配
置した受板１４，１４と、押え板１３，１３及び
受け板１４，１４に配置し常には第３図の二点鎖
線の位置にばねで弾発維持されると共にエアシリ
ンダE2，E2を介して同図の実線位置に移動可能
とした規制板１５，１５と、常には第３図二点鎖
線の位置にばねで弾発維持されると共にエアシリ
ンダE2，E2を介して同図実線の位置に押圧され
るようにしたフラツプ布押え１６，１６とから成
る。 To explain each mechanism in more detail, the cloth transfer means B is as follows:
Screw shaft 8 and screw shaft 8 connected to pulse motor 5
The lower part is supported on a guide shaft 9 parallel to the threaded shaft 8.
A transfer table 10 that is movable in the axial direction in conjunction with the rotation of the transfer table 10, supported by a shaft 11 at the upper part of the transfer table 10, and always pulled upward by the elastic force of a spring (not shown). Air cylinder
A pair of clamp arms 12, 12 which can be pushed down via E 1 (Fig. 1), a presser plate 13 fixed to the free ends of both clamp arms 12, 12,
13, receiving plates 14, 14 which are spaced apart and fixedly arranged above the holding plates 13, 13, and springs arranged on the holding plates 13, 13 and the receiving plates 14, 14 and always at the positions indicated by the two-dot chain lines in FIG. The regulation plates 15, 15 can be moved to the position shown by the solid line in the figure through the air cylinders E 2 and E 2 , and the spring is always maintained at the position shown by the two-dot chain line in Fig. 3. It consists of flap presser feet 16, 16 which are pressed to the position shown by the solid line in the figure through air cylinders E2 , E2 .
折り重ね手段Ｃは布押え足１７及び詳細に図示
しないがエアモータ（図示しない）に連動して所
定のストロークで上下動可能とした昇降体（図示
しない）とからなる。そして布押え足１７は昇降
体に対し上下に相対移動できるように、バネ力を
介して支持し、常には昇降体と布押え足１７とは
第１，２図のようになつており、この状態から昇
降体がエア・モータを介して最下降すると布押え
足１７が作業台４上面に係合し、布押え足１７が
ばねに抗して僅かに上方へ昇降体に対して相対移
動し、これにより縫合時には玉縁布Ｐをその布厚
が変つても常に軽く身生地Ｗ上に押圧保持し、針
が玉縁布Ｐに突刺つたり抜け出るときの布との摩
擦による玉縁布Ｐのパタツキを防止するように作
用する。そして布転送手段Ｂと布折り重ね手段Ｃ
とはたとえば特開昭57−11681号または特開昭57
−185887号公報に詳述してあるように動作して布
を折りたたむ。 The folding means C includes a presser foot 17 and an elevating body (not shown) which is not shown in detail but can be moved up and down with a predetermined stroke in conjunction with an air motor (not shown). The presser foot 17 is supported by a spring force so that it can move vertically relative to the lifting body, and the lifting body and the presser foot 17 are normally arranged as shown in Figures 1 and 2. When the lifting body descends to the lowest level via the air motor, the presser foot 17 engages with the upper surface of the workbench 4, and the presser foot 17 moves slightly upward against the spring relative to the lifting body. As a result, during sewing, the beading fabric P is always lightly pressed and held on the body fabric W even when the thickness of the beading fabric changes, and the beading fabric P is caused by friction with the cloth when the needle pierces or comes out of the beading fabric P. It acts to prevent flapping. And cloth transfer means B and cloth folding means C
For example, JP-A-57-11681 or JP-A-57
-Fold the fabric by operating as detailed in publication No. 185887.
このような装置をもつ従来の玉縁縫機において
は、針棒３よりも布送り方向手前において、光を
照射する発光部（フオトダイオード）及び光の有
無により異なる信号を発生する受光体（フオトト
ランジスタ）とによる光検出手段としての二組の
検知器１８，１９をミシンＡのあご部前面に固定
配置するとともにフラツプ布押え１６，１６に布
送り方向に沿い前後に離隔して細長状の切欠孔２
０，２１（第６〜１２図）を貫通形成し、その切
欠孔２０，２１の下方に対向する規制板１５，１
５の上面に検知器１８，１９の光を反射する反射
面R1，R2を設け、この検知器と反射面とにより
検知部を構成し、切欠孔２０，２１内にそれぞれ
フラツプ布Ｆの前端縁及び後端縁が対向するよう
に配置するとき、布前端縁により反射光が途切れ
るのに関連してミシンの縫い開始時期を設定した
り、布後端縁により反射面からの反射光を再び受
光するのに関連してミシンの縫い停止時期、コー
ナーメスの作動時期等を設定するようにしてい
た。 In a conventional welt sewing machine having such a device, a light emitting part (photodiode) that emits light and a light receiving body (photodiode) that generates different signals depending on the presence or absence of light are installed before the needle bar 3 in the cloth feeding direction. Two sets of detectors 18 and 19 are fixedly arranged on the front face of the jaw of the sewing machine A, and elongated notches are provided in the flap presser feet 16 and 16 spaced apart from each other in the direction of fabric feeding. Hole 2
0, 21 (Figs. 6 to 12) and is formed through the regulation plates 15, 1 facing below the notch holes 20, 21.
Reflective surfaces R 1 and R 2 that reflect the light from the detectors 18 and 19 are provided on the upper surface of the flap cloth F, and the detector and the reflective surfaces constitute a detection section. When arranging the front and rear edges to face each other, you can set the sewing start time of the sewing machine in relation to the interruption of the reflected light by the front edge of the cloth, or set the sewing start time of the sewing machine in relation to the interruption of the reflected light by the front edge of the cloth, or In relation to receiving light again, the timing for the sewing machine to stop sewing, the activation timing for the corner knife, etc. were set.
しかし従来のこのような装置においては、フラ
ツプ布後端縁を検知する場合、布移送方向後方の
切欠孔２１内に後端検知範囲を設定し、布後端縁
がこの検知範囲内に位置するときに検知可能とし
ているが、塵埃等により布後端よりも後方が覆わ
れて検知範囲の後方端を検知器１８または１９が
通過するまで受光状態とならないときには、針が
検知範囲後端に対向するときにミシンを停止する
ように電気的に制御していたため、縫目が布後端
よりも長く縫い進んでミシンが空縫いし、糸絡み
や糸切れの原因となるとともに、両針N1，N2の
中間で布を切開するセンターメスにより布が予定
よりも長く切り開かれるので縫製品が無駄となる
欠点を生じた。 However, in such a conventional device, when detecting the trailing edge of the flap cloth, a trailing edge detection range is set within the notch hole 21 at the rear in the cloth transport direction, and the trailing edge of the cloth is located within this detection range. However, if the rear end of the cloth is covered by dust etc. and the light is not received until the detector 18 or 19 passes the rear end of the detection range, the needle will face the rear end of the detection range. Since the sewing machine was electrically controlled to stop when the sewing machine was running, the stitches would sew longer than the trailing edge of the fabric, causing the sewing machine to sew blankly, causing thread tangles and thread breaks, as well as double-needle N 1 stitches. , The center scalpel that cuts the fabric in the middle of N 2 cuts the fabric longer than planned, resulting in a disadvantage that the sewn product is wasted.
この発明は、上記従来のものの欠点を除去する
ことを目的とする。 This invention aims to eliminate the drawbacks of the above-mentioned conventional ones.
以下この発明の実施例を図面により説明する
が、機械装置については従来例と同様であるので
説明を省略し、同番号を付して使用する。 Embodiments of the present invention will be described below with reference to the drawings, but since the mechanical devices are the same as those of the conventional example, the explanation will be omitted and the same numbers will be used.
第４図において、MCは中央処理回路CPU及び
静的記憶回路ROM及び動的記憶回路RAMとか
らなる周知のマイクロコンピユータであり、SC
は布転送手段Ｂ或いは布折り重ね手段Ｃの各位置
への移動等を検出する移動検知手段やミシン主軸
の針棒上下位置に対応する回転角を検出する針位
置検知手段等に関連し検知時に各検知信号を発生
する検出回路であり、HSは縫い条件の設定等を
行なうための操作手段に関連し手動操作により各
設定信号を発生する設定回路であり、各検知信号
及び各設定信号はマイクロコンピユータMCの
CPUに入力する。DCは各エアシリンダE1〜E4等
の各作動手段の作動を制御する作動制御回路であ
り、ミシンモータ１及びパルスモータ６及び作動
制御回路DCは第５図フローチヤートに従つて
CPUの制御を受ける。 In FIG. 4, MC is a well-known microcomputer consisting of a central processing circuit CPU, a static memory circuit ROM, and a dynamic memory circuit RAM;
is related to the movement detection means for detecting the movement of the cloth transfer means B or the cloth folding means C to each position, the needle position detection means for detecting the rotation angle corresponding to the vertical position of the needle bar of the main shaft of the sewing machine, etc. at the time of detection. HS is a detection circuit that generates each detection signal, and HS is a setting circuit that generates each setting signal by manual operation related to the operation means for setting sewing conditions, etc. Each detection signal and each setting signal are computer MC
Input to CPU. DC is an operation control circuit that controls the operation of each operation means such as each air cylinder E1 to E4 , and the sewing machine motor 1, pulse motor 6, and operation control circuit DC are operated according to the flowchart in FIG.
Controlled by the CPU.
次に第５図に示す布転送手段Ｂの移動制御に関
するフローチヤートについて説明する。 Next, a flowchart relating to movement control of cloth transfer means B shown in FIG. 5 will be explained.
まずダミーの送り設定量として待期位置におけ
る針落ち点N1，N2から布移動方向後方の切欠孔
２１の前端縁までの距離G1（第６図）を設定す
る。次にパルスモータ５が始動して布転送手段Ｂ
が移動を開始し、検知器１８，１９の検知状態を
判断して受光状態から遮光状態に切換わるとき始
動時からの移動量L1をメモリ領域D1にストアし、
この移動量L1と針N1，N2と検知器１８，１９と
の距離L0とを送り設定量LeとしてダミーG1から
置き換える。 First, the distance G 1 (FIG. 6) from the needle drop points N 1 and N 2 at the standby position to the front edge of the notch hole 21 at the rear in the cloth movement direction is set as a dummy feed setting amount. Next, the pulse motor 5 starts and the cloth transfer means B
starts moving, determines the detection states of the detectors 18 and 19, and switches from the light receiving state to the light shielding state, stores the amount of movement L 1 from the time of startup in the memory area D 1 ,
This movement amount L 1 and the distance L 0 between the needles N 1 , N 2 and the detectors 18, 19 are used as the feed setting amount L e to replace the dummy G 1 .
次に操作手段に関連する設定回路HSの設定に
よる値、即ち移動開始点から布移動方向前方の切
欠孔２０の後端縁より距離Ｓだけ手前位置までの
距離L2と送り設定量Leとの大小を判断し、L2≧
Leのときは検知器１８，１９が受光したか否か
を判断し、L2＜Leのときまたは受光状態となつ
たときは「前端エラー」のサブルーチンを処理し
て転送手段Ｂを緊急停止状態とする。また前記検
知器１８，１９の判断で発光しないときにはフラ
ツプ布Ｆの前端に針落ち点が対向する準備位置に
移動したか否かを判断し、準備位置に達するまで
検知器の判断に戻り、準備位置に達したとき転送
手段Ｂを停止する。 Next, the values set by the setting circuit HS related to the operating means, that is, the distance L 2 from the movement start point to the position a distance S from the rear edge of the notch hole 20 in the front direction in the cloth movement direction, and the feed setting amount L e Determine the size of L 2 ≧
When L e , it is determined whether or not the detectors 18 and 19 have received light, and when L 2 < L e or when the light has been received, the "front end error" subroutine is processed and the transfer means B is activated as an emergency. Set to stopped state. Further, when the detectors 18 and 19 determine that no light is emitted, it is determined whether or not the needle drop point has moved to the preparation position facing the front end of the flap cloth F, and the determination by the detectors is returned until the needle drop point is opposed to the front end of the flap cloth F. When the position is reached, the transfer means B is stopped.
次にダミーの縫目形成送り量として前記距離
G1と送り設定量Le（＝D1＋Ｓ）とをしてG1−Le
を設定し、次にパルスモータ５を始動して転送手
段Ｂを移動する。このときミシンＡも駆動して針
N1，N2を上下動して縫目を形成する。待期位置
からの移動量L3をメモリ領域D2にストアすると
ともにL3＋Lp（＝L4）を計数する。 Next, use the above distance as the dummy seam formation feed amount.
By combining G 1 and the feed setting amount L e (=D 1 + S), we get G 1 −L e
is set, and then the pulse motor 5 is started to move the transfer means B. At this time, sewing machine A is also driven and the needle is
A stitch is formed by moving N 1 and N 2 up and down. The amount of movement L 3 from the waiting position is stored in the memory area D 2 and L 3 +L p (=L 4 ) is counted.
次に計数値L4と前記距離G1とを比較し、L4＞
G1のときは計数値L4と送り開始点から布移動方
向後方の切欠孔２１の後端縁よりわずかに手前位
置までの距離G2（操作手段により設定可能）とを
比較し、L4≦G2のとき検知器１８，１９が受光
したか否かを判断し、受光しないときはL4とG2
の比較に戻り、受光するときはそのときの計数値
L4を設定値Lsとしてメモリ領域D3にストアし、
次にその設定値Lsに針落ち点が達したか否か、即
ち縫い停止位置に達したか否かを判断して達した
とき布転送手段Ｂを停止する（同時にミシンＡも
停止する）。 Next, the count value L 4 and the distance G 1 are compared, and L 4 >
In the case of G 1 , compare the count value L 4 with the distance G 2 (can be set using the operating means) from the feed start point to a position slightly in front of the rear edge of the notch hole 21 at the rear in the cloth movement direction, and set L 4 . When ≦G 2 , determine whether the detectors 18 and 19 have received light or not, and if not, L 4 and G 2
Returning to the comparison, when receiving light, calculate the count value at that time.
Store L 4 in memory area D 3 as set value L s ,
Next, it is determined whether the needle drop point has reached the set value Ls , that is, whether the sewing stop position has been reached, and when the needle drop point has been reached, cloth transfer means B is stopped (sewing machine A is also stopped at the same time). .
また計数値L4とG2の比較において、L4＞G2の
ときは、針落ち点が前記距離G2よりも短かい
（予め操作手段により位置を設定可能とする）距
離G0（第６図）となるとき、布転送手段Ｂ及びミ
シンＡを停止するように「後端エラー」のサブル
ーチンを処理する。 In addition, when comparing the count value L 4 and G 2 , when L 4 > G 2 , the distance G 0 (the position can be set in advance by the operating means) where the needle drop point is shorter than the distance G 2 is determined. 6), the "trailing end error" subroutine is processed to stop the cloth transfer means B and the sewing machine A.
この発明は以上のような構成であり、
布転送手段Ｂが待期位置に位置するときにおい
て折り重ね手段Ｃが下方位置となり且つ布転送手
段Ｂのクランプ腕１２，１２、規制板１５，１５
及びフラツプ布押え１６，１６が第３図実線位置
となり、身生地Ｗ上に玉縁布Ｐを逆Ｔ字状に折曲
して折り重ねるとともにその一側上方にフラツプ
布Ｆを重合して保持する。 This invention has the above structure, and when the cloth transfer means B is located at the standby position, the folding means C is in the lower position, and the clamp arms 12, 12 and the regulating plates 15, 15 of the cloth transfer means B are in the lower position.
And the flap pressers 16, 16 are in the solid line position in Figure 3, and the welt fabric P is folded over the body fabric W in an inverted T-shape, and the flap fabric F is superimposed and held above one side of the welt fabric P. do.
操作手段により布移動方向前方の切欠孔２０の
後端縁より手前となるように前記距離L2を設定
するとともに、布移動方向後方の切欠孔２１の後
端より手前となるように前記距離G2を設定し、
また距離G0をして、「後端エラー」による最終針
落ち点、即ち停止位置が布後端となるように設定
する。 The distance L 2 is set by the operating means so that it is in front of the rear edge of the notch hole 20 at the front in the cloth movement direction, and the distance G is set so that it is in front of the rear end of the notch hole 21 at the rear in the cloth movement direction. Set 2 ,
Also, the distance G 0 is set so that the final needle drop point, ie, the stopping position due to the "trailing edge error" is the trailing edge of the fabric.
この状態から送りが開始されると、ミシンＡは
不作動のまま布転送手段Ｂがダミー設定値（G1）
により駆動されるパルスモータ５により移動さ
れ、検知器１８（または１９）がフラツプ布Ｆに
より遮光状態となるとき（第７図）、移動量L1か
ら送り設定量Le（＝L1＋Ｓ）がダミー設定値に代
えて書き込まれ、移動量が設定値Leとなるとき
針N1がフラツプ布Ｆ前端縁に位置する準備位置
となり（第８図）、布転送手段Ｂは一旦停止する。
フラツプ布Ｆの配置が悪くて切欠孔２０に前端縁
が対向しないと、検知器１８が遮光状態となるの
は切欠孔２０後端縁が対向するときであり、この
ときは移動量L1から得られる送り設定量Leが前
記設定量L2より大きくなるから、フラツプ布Ｆ
が切欠孔２０内に存在しないとして前端エラーと
なり、「前端エラー」サブルーチンにより布転送
手段Ｂは緊急停止される。 When feeding starts from this state, the sewing machine A remains inactive and the cloth transfer means B changes to the dummy setting value (G 1 ).
When the detector 18 (or 19) is shielded from light by the flap cloth F (Fig. 7), the feed setting amount L e (=L 1 +S) is moved by the pulse motor 5 driven by the movement amount L 1 . is written in place of the dummy set value, and when the amount of movement reaches the set value L e , the needle N1 comes to the preparation position located at the front edge of the flap cloth F (FIG. 8), and the cloth transfer means B temporarily stops.
If the flap cloth F is poorly arranged and the front edge does not face the notch hole 20, the detector 18 will be in a light-shielded state when the rear edge of the notch hole 20 faces each other. Since the obtained set feed amount L e is larger than the set amount L 2 , the flap cloth F
is not present in the notch hole 20, and a front end error occurs, and the cloth transfer means B is urgently stopped by the "front end error" subroutine.
正常の場合は、それから再び起動して布転送手
段Ｂ（パルスモータ５）はダミー設定値（G1−
Le）により移動されるとともにミシンＡが駆動
される。第５図フローチヤートから明らかなよう
に移動量L3から得られる計算値L4（＝L3＋L0）が
布移動方向後方の切欠孔２１前端縁までの距離
G1を越えるまで検知器１８の状態に関らず布転
送手段Ｂは移動し続ける。計算値L4が距離G1及
びG2の間において検知器１８が受光状態となる
とそのときの計算値L4を設定値Lsとし、移動量
L3が設定値Lsとなるとき布転送手段Ｂ及びミシ
ンＡを停止する。一方、フラツプ布Ｆの配置が悪
かつたり、塵埃等のノイズにより計算値L4が距
離（設定値）G2より大きくなるような移動量L3
となるまで検知器１８が受光状態とならないと後
端エラーとなり（第１２図）、「後端エラー」サブ
ルーチンにより予め設定した値G0に対応する設
定値Lsとし、移動量L3が設定値Ls（設定値G0に対
応）となるとき、布転送手段Ｂ及びミシンＡを停
止する。 If it is normal, it will start up again and the cloth transfer means B (pulse motor 5) will change to the dummy setting value (G 1 -
L e ), and the sewing machine A is driven at the same time. As is clear from the flowchart in Fig. 5, the calculated value L 4 (=L 3 +L 0 ) obtained from the movement amount L 3 is the distance to the front edge of the notch hole 21 at the rear in the cloth movement direction.
The cloth transfer means B continues to move regardless of the state of the detector 18 until G1 is exceeded. When the calculated value L 4 is between the distances G 1 and G 2 and the detector 18 enters the light receiving state, the calculated value L 4 at that time is set as the set value L s , and the amount of movement is
When L3 reaches the set value Ls , cloth transfer means B and sewing machine A are stopped. On the other hand, if the flap cloth F is poorly placed or due to noise such as dust, the amount of movement L 3 may cause the calculated value L 4 to be larger than the distance (set value) G 2 .
If the detector 18 does not enter the light receiving state until , a rear end error occurs (Fig. 12), and the set value L s corresponding to the value G 0 set in advance is set by the "rear end error" subroutine, and the amount of movement L 3 is set. When the value L s (corresponding to the set value G 0 ) is reached, the cloth transfer means B and the sewing machine A are stopped.
尚、本実施例においては切欠孔２０，２１を鏡
面R1，R2に対向して形成し、受光体の光を鏡面
R1，R2に反射させて受光体が受光する検知器１
８，１９を示したが、切欠孔２０，２１の両側に
発光体、受光体を対向配置し、発光体の光が切欠
孔２０，２１を通過するのを受光体が受光する検
知器を配してもよい。 In this embodiment, the notch holes 20 and 21 are formed to face the mirror surfaces R 1 and R 2 to direct the light from the photoreceptor to the mirror surfaces.
Detector 1 where the light is reflected by R 1 and R 2 and received by the photoreceptor
8 and 19, a light emitting body and a light receiving body are arranged facing each other on both sides of the notched holes 20 and 21, and a detector is arranged so that the light receiving body receives light from the light emitting body passing through the notched holes 20 and 21. You may.
また、本実施例においては、布移送方向先方の
切欠孔２０における距離Ｓを操作手段HSにより
任意に設定できるようにしたが、プログラムとし
て予め所定に設定してもよく、また同様に布送り
方向後方の切欠孔２１における距離G0，G2を操
作手段HSによる設定に代えてプログラムとして
予め所定に設定してもよい。 Further, in this embodiment, the distance S at the notch hole 20 at the front in the cloth feeding direction can be arbitrarily set by the operating means HS, but it may also be set to a predetermined value in advance as a program. The distances G 0 and G 2 in the rear notch hole 21 may be set in advance as a program instead of being set by the operating means HS.
本実施例における移動量はパルスモータ５への
パルスをカウントすることにより換算して検知す
るものとする。 In this embodiment, the amount of movement is calculated and detected by counting pulses to the pulse motor 5.
また本実施例においては、距離G2を移動する
間にフラツプ布後端縁が検出されないとき、距離
G0においてミシンを停止するものを示したが、
切欠孔２１後端に移動するまでにフラツプ布後端
縁が検出されないときに同様の処理を行なうよう
にしてもよい。 In addition, in this embodiment, when the trailing edge of the flap cloth is not detected while moving the distance G 2 , the distance
Although we have shown what stops the sewing machine at G 0 ,
A similar process may be performed when the trailing edge of the flap cloth is not detected before moving to the rear end of the notch hole 21.
以上のようにこの発明によれば、
検出部の前記一定長間におけるフラツプ布後端
より手前の特定点を指定する設定手段と、検出部
の前記一定長間または特定点と検出部の布移送方
向後端縁との間において受光体が受光状態になら
ないとき動作する判別手段と、判別手段の動作に
関連してミシンの針が前記特定点に対向するとき
ミシンを停止する制御手段とを設けたことによ
り、検知部において光検出手段が受光状態になら
ないときは、ミシンの針が検出部のフラツプ布後
端より手前の特定点に対向するときミシンを停止
するようにしたので、塵埃等によりフラツプ布後
方端が検出されなくても検出部内の特定点に針が
対向するときにミシンを停止するから、縫目が布
後端から縫いはずれることがなく、糸絡みや糸切
れを防止し、またセンターメスにより布後端まで
切り開かれることがなく商品を無駄にすることが
なくなる等の効果が得られる。 As described above, according to the present invention, there is provided a setting means for specifying a specific point in front of the rear end of the flap cloth during the fixed length of the detecting section, and a cloth transfer between the fixed length or the specific point of the detecting section and the detecting section. A determining means is provided which operates when the light receiving body is not in a light receiving state between the rear edge in the direction, and a control means which stops the sewing machine when the needle of the sewing machine faces the specific point in relation to the operation of the determining means. As a result, when the light detection means in the detection section does not receive light, the sewing machine is stopped when the needle of the sewing machine faces a specific point in front of the rear edge of the flap cloth in the detection section, so it is possible to prevent dust, etc. Even if the rear edge of the flap fabric is not detected, the sewing machine will stop when the needle faces a specific point within the detection area, so the stitches will not deviate from the rear edge of the fabric, preventing thread tangling and thread breakage. In addition, since the center knife does not cut open the fabric to the rear end, there is an advantage that the product is not wasted.
第１図は玉縁形成装置の正面図、第２図はミシ
ンと布転送機構のクランプ部を示す斜視図、第３
図は布転送機構のクランプ部と折り重ね機構の作
用状態を示す縦断面図、第４図は本実施例の電気
回路のブロツク図、第５図はフローチヤート、第
６〜１２図は光検出手段と検出部の関係を示す説
明図である。
Figure 1 is a front view of the welt forming device, Figure 2 is a perspective view showing the sewing machine and the clamp section of the fabric transfer mechanism, and Figure 3 is a front view of the welt forming device.
The figure is a vertical cross-sectional view showing the working state of the clamp part and folding mechanism of the cloth transfer mechanism, Figure 4 is a block diagram of the electric circuit of this embodiment, Figure 5 is a flowchart, and Figures 6 to 12 are optical detection. FIG. 3 is an explanatory diagram showing the relationship between means and a detection section.
Claims (1)
と共にその縁飾り布の一方の折曲部上にポケツト
の雨蓋となるフラツプ布を重合保持し予定の二位
置にわたつてこれら布をミシンテーブル面に沿い
移送可能とした布転送機構と、上記二位置の中間
に配置し布を移送する間に縁飾り布の両側折曲部
上に二本の平行なミシン縫いを行なつて縁飾り布
及びフラツプ布を被縫布上に縫着するための二本
針をもつミシンと、ミシンの始動・停止に関連し
て始動・停止し両縫目間において被縫布及び縁飾
り布に縫目線に平行に且つ縫目線の長さのポケツ
ト孔を切り開くためのメス機構と、 布移送方向に沿うフラツプ布後端縁の前後に一
定長間にわたつて布転送機構に設け光を反射又は
通過可能とした検出部と、ミシンの縫合点よりも
布転送方向手前に固定配置した一組の発光体及び
受光体をもち受光体を遮光状態及び受光状態にす
ることにより各別の信号を出力可能とした光検出
手段と、 受光体を遮光状態から受光状態にすることによ
り光検出手段から出力される信号に関連して動作
し且つその信号の出力時から縫目の終端予定点が
ミシン縫合点に至るまでの布転送機構の移動量を
予め設定可能としその設定量の移動に関連してミ
シンを停止する信号を出力可能とした記憶手段と
を有する玉縁形成装置において、 検出部の前記一定長間におけるフラツプ布後端
より手前の特定点を指定する設定手段と、 検出部の前記一定長間または特定点と検出部の
布移送方向後端縁との間において受光体が受光状
態にならないときに動作する判別手段と、 判別手段の動作に関連してミシンの針が前記特
定点に対向するときミシンを停止する制御手段、
とを備えた玉縁形成装置の駆動制御装置。[Scope of Claims] 1. A hem decoration fabric is bent and held in an inverted T-shape on the fabric to be sewn, and a flap cloth that becomes a rain cover of a pocket is held in an overlapping manner on one of the folded portions of the hem decoration fabric. A cloth transfer mechanism that can transfer these cloths along the sewing machine table surface across two positions, and a cloth transfer mechanism that is placed between the two positions and that is able to transfer the cloths on both sides of the hemline fabric. A sewing machine with two needles to perform parallel sewing machine stitches to sew hem decoration fabrics and flap fabrics onto the fabric to be sewn, and a sewing machine with two needles to perform parallel sewing machine stitches to sew hem decoration fabrics and flap fabrics onto the fabric to be sewn. a knife mechanism for cutting a pocket hole parallel to the seam line and the length of the seam line in the fabric to be sewn and the hemline fabric; The cloth transfer mechanism has a detection part that can reflect or pass light, and a pair of light emitter and light receiver fixedly arranged in front of the stitching point of the sewing machine in the cloth transfer direction, and the light receiver can be set in a light blocking state and a light receiving state. A photodetecting means that can output each different signal by doing so, and a photodetecting means that operates in conjunction with the signal output from the photodetecting means by changing the light receiving body from a light blocking state to a light receiving state, and that operates from the time of outputting the signal. A ball having a memory means capable of setting in advance the amount of movement of a cloth transfer mechanism until the expected end point of a stitch reaches a stitching point of the sewing machine, and outputting a signal to stop the sewing machine in relation to the movement by the set amount. In the edge forming device, a setting means for specifying a specific point in front of the trailing edge of the flap cloth in the fixed length of the detecting section; and a setting means for specifying a specific point in front of the trailing edge of the flap cloth in the fixed length of the detecting section and the trailing edge in the fabric transport direction of the detecting section; a determining means that operates when the photoreceptor is not in a light-receiving state between the two; and a control means that stops the sewing machine when the needle of the sewing machine faces the specific point in relation to the operation of the determining means;
A drive control device for a bead forming device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20539483A JPS6096293A (en) | 1983-10-31 | 1983-10-31 | Drive controller of binding forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20539483A JPS6096293A (en) | 1983-10-31 | 1983-10-31 | Drive controller of binding forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6096293A JPS6096293A (en) | 1985-05-29 |
| JPH0128599B2 true JPH0128599B2 (en) | 1989-06-05 |
Family
ID=16506093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20539483A Granted JPS6096293A (en) | 1983-10-31 | 1983-10-31 | Drive controller of binding forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6096293A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8812703U1 (en) * | 1988-10-10 | 1988-11-17 | Dürkoppwerke GmbH, 4800 Bielefeld | Folding stamp for a sewing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711680A (en) * | 1980-06-26 | 1982-01-21 | Tokyo Juki Industrial Co Ltd | Safety device for bead forming device |
| JPS5711681A (en) * | 1980-06-26 | 1982-01-21 | Tokyo Juki Industrial Co Ltd | Driving device for bead forming device |
-
1983
- 1983-10-31 JP JP20539483A patent/JPS6096293A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5711680A (en) * | 1980-06-26 | 1982-01-21 | Tokyo Juki Industrial Co Ltd | Safety device for bead forming device |
| JPS5711681A (en) * | 1980-06-26 | 1982-01-21 | Tokyo Juki Industrial Co Ltd | Driving device for bead forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6096293A (en) | 1985-05-29 |
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