JPH0418877B2 - - Google Patents
Info
- Publication number
- JPH0418877B2 JPH0418877B2 JP1087880A JP8788089A JPH0418877B2 JP H0418877 B2 JPH0418877 B2 JP H0418877B2 JP 1087880 A JP1087880 A JP 1087880A JP 8788089 A JP8788089 A JP 8788089A JP H0418877 B2 JPH0418877 B2 JP H0418877B2
- Authority
- JP
- Japan
- Prior art keywords
- tension
- cloth
- fabric
- control device
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、自動ミシンに用いるのに最適な布
終端合せ縫い装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a cloth end seaming device most suitable for use in an automatic sewing machine.
（従来の技術）
縫製するように裁断された生地には、裁断誤差
やその表面性状の伸び率等にばらつきがあるのが
普通である。このようなばらつきのある生地同志
を単純に縫い合せると、いわゆる「いさり」が発
生してしまう。(Prior Art) Fabrics cut for sewing usually have variations in cutting errors and elongation rates of their surface properties. If fabrics with such variations are simply sewn together, so-called "scattering" will occur.
このいさりが発生しないようにするために、従
来は、熟練者による手作業に頼つていた。 In order to prevent this problem from occurring, conventionally, manual work by skilled workers has been relied upon.
例えば、裁断誤差がある生地を縫い合せる場合
には、それらの長さの違いを吸収するために、当
該生地の中間部分を多少引つ張りながら縫い上げ
るようにしていた。また、表面性状の伸び率が相
違する異種の生地を縫い合せる場合には、その生
地の特性に合せて上布の送り量を勘で調整するよ
うにしていた。 For example, when sewing fabrics with cutting errors, the middle part of the fabrics is sewn with some tension in order to absorb the difference in length. Furthermore, when sewing different types of fabrics with different surface elongation rates, the amount of feed of the upper fabric has to be adjusted based on the characteristics of the fabrics.
（本発明が解決しようとする問題点）
上記のように従来は熟練者の手作業に頼つてい
たので、その縫い上りが熟練度によつて多少ばら
つくという問題があつた。特に、最近は熟練者が
不足傾向にあるので、その仕上がり具合のばらつ
きが激しくなつている。(Problems to be Solved by the Present Invention) As mentioned above, since conventional methods relied on the manual work of skilled workers, there was a problem in that the quality of the finished stitching varied somewhat depending on the level of skill. In particular, recently there has been a shortage of skilled workers, so the quality of the finished product is becoming more and more inconsistent.
この発明の目的は、裁断誤差や表面性状の伸び
率等に差異がある生地でも正確に縫えるようにし
た装置を提供することである。 An object of the present invention is to provide a device that can accurately sew even fabrics with differences in cutting errors, elongation rates, etc. of surface properties.
（問題点を解決する手段）
この発明は、ミシンの押え金具の近傍に設けた
布端制御装置と、この布端制御装置から離れた位
置に設けた布平行把持装置と、平行把持装置から
布端制御装置までの布に張力を与える張力モータ
とを備え、上記布端制御装置は、布端を制御する
一対の制御ローラと、布端の張力を制御する一対
の送りローラと、この送りローラから押え金具ま
での布の張力を検出する一対の第２張力センサー
とからなり、また、布平行把持装置は、上記布端
制御装置との間における張力を検出する一対の第
１張力センサーを備えてなり、しかも、上記送り
ローラと押え金具との間の布の張力が、張力モー
タで設定した張力になるように送りローラを制御
するコントローラを設けた点に特徴を有する。(Means for Solving Problems) The present invention includes a cloth edge control device provided near a presser foot of a sewing machine, a cloth parallel gripping device provided at a position away from the cloth edge control device, and a cloth and a tension motor that applies tension to the fabric up to the edge control device, and the fabric edge control device includes a pair of control rollers that control the fabric edge, a pair of feed rollers that control the tension of the fabric edge, and the feed roller. and a pair of second tension sensors for detecting the tension of the fabric from Moreover, it is characterized in that a controller is provided to control the feed roller so that the tension of the cloth between the feed roller and the presser metal fitting becomes the tension set by the tension motor.
（本発明の作用）
この発明は、張力モータで布に張力を与えると
ともに、その張力モータによる力が、ミシンの押
え金具に至るまで保たれるように、送りローラが
動作する。したがつて、押え金具に至つた布はい
さりが生じることなく縫い合わされることにな
る。(Operation of the present invention) In the present invention, a tension motor applies tension to the cloth, and the feed roller operates so that the force of the tension motor is maintained up to the presser foot of the sewing machine. Therefore, the fabric that has reached the presser metal fitting can be sewn together without any sagging.
（本発明の効果）
この発明の装置によれば、いさり等の不都合が
なく自動的に縫製が可能になるので、その縫い上
がり具合が均質化するとともに、熟練者が不要に
なるという効果を発揮する。(Effects of the present invention) According to the device of the present invention, sewing can be performed automatically without inconveniences such as sagging, so that the quality of the finished seams becomes uniform and there is no need for a skilled person. Demonstrate.
（本発明の実施例）
第１図に示した実施例において、ａはミシン
で、ミシン針１と押え金具２とを備えている。(Embodiment of the present invention) In the embodiment shown in FIG. 1, a is a sewing machine, and is equipped with a sewing machine needle 1 and a presser metal fitting 2.
ｂはミシンａに隣接して設けた布端制御装置
で、上布制御ローラ３と下布制御ローラ４とを備
えるとともに、これら制御ローラ３，４に接触す
るようにして上布送りローラ５と下布送りローラ
６とを設けている。そして、上記送りローラ５、
６を支えている支持軸７，８のそれぞれには、第
２上布張力センサー９と第２下布張力センサー１
０とを設け、押え金具２と送りローラ５，６及び
制御ローラ３，４との間の上布１１及び下布１２
の張力による支持軸７，８の曲がり具合に応じた
出力信号により、当該部分の上下布の張力を測定
するようになつている。すなわち、支持軸７及び
８にはそれぞれ前後両面にストレンゲージを張り
つけてなる一対の張力センサ９及び１０が装着さ
れ、上布１１及び下布１２の張力により制御ロー
ラ、送りローラ対３，５及び４，６を介して支持
軸７及び８が布の送り方向へ湾曲される。このと
き各支持軸に装着されたストレンゲージの前方側
は圧縮されると同時に後方側は引張され、それに
応じた信号が上下布の張力測定値として出力され
る。 Reference numeral b denotes a fabric edge control device installed adjacent to the sewing machine a, which includes an upper fabric control roller 3 and a lower fabric control roller 4, and an upper fabric feed roller 5 in contact with these control rollers 3 and 4. A lower cloth feed roller 6 is provided. And the above-mentioned feed roller 5,
A second upper fabric tension sensor 9 and a second lower fabric tension sensor 1 are attached to each of the support shafts 7 and 8 supporting the fabric tension sensor 6.
0, and an upper cloth 11 and a lower cloth 12 between the presser metal fitting 2 and the feed rollers 5, 6 and the control rollers 3, 4.
The tension of the upper and lower cloths at the relevant portion is measured by an output signal corresponding to the degree of bending of the support shafts 7 and 8 due to the tension. That is, a pair of tension sensors 9 and 10 each having a strain gauge pasted on the front and rear surfaces of the support shafts 7 and 8 are attached to the support shafts 7 and 8, and the tension of the upper cloth 11 and the lower cloth 12 causes the control roller, the feed roller pairs 3, 5, and Support shafts 7 and 8 are bent in the cloth feeding direction via 4 and 6. At this time, the front side of the strain gauge attached to each support shaft is compressed, and at the same time, the rear side is stretched, and a corresponding signal is output as a measured value of the tension of the upper and lower fabrics.
ｃは布端制御装置ｂと間隔を置いて設けた平行
把持装置で、上布１１と下布１２とを平行に把持
するものである。この平行把持装置ｃには、上布
ガイド１３と下布ガイド１４とを設けるととも
に、これら両布１１，１２の張力を検出する第１
上布張力センサー１５と第１下布張力センサー１
６とを備えている。 A parallel gripping device c is provided at a distance from the cloth edge control device b, and grips the upper cloth 11 and the lower cloth 12 in parallel. This parallel gripping device c is provided with an upper cloth guide 13 and a lower cloth guide 14, and a first
Upper cloth tension sensor 15 and first lower cloth tension sensor 1
6.
ｍは張力モータで、平行把持装置ｃで把持され
た上布１１及び下布１２のそれぞれに設定張力を
付与するためのものである。 A tension motor m is used to apply a set tension to each of the upper cloth 11 and the lower cloth 12 gripped by the parallel gripping device c.
しかして、平行把持装置ｃで把持された両布１
１，１２のそれぞれを、布端制御装置ｂの制御ロ
ーラ３，４と送りローラ５，６との間を通して押
え金具２の下に導く。そして、このときの張力の
設定値を定めるとともに、その設定値に応じて張
力モータｍを駆動し、平行把持装置ｃから布端制
御装置ｂまでの張力を特定する。なお、このとき
の上布１１の設定張力をFU1と、下布１２の設定
張力をFL1とを第１張力センサー１５，１６で検
出するとともに、それらを設定値として図示して
いないコントローラに入力して記憶させておく。 Therefore, both cloths 1 gripped by the parallel gripping device c
1 and 12 are guided under the presser metal fitting 2 through between the control rollers 3 and 4 and the feed rollers 5 and 6 of the cloth edge control device b. Then, the set value of the tension at this time is determined, the tension motor m is driven according to the set value, and the tension from the parallel gripping device c to the cloth edge control device b is specified. At this time, the set tension of the upper cloth 11 as FU1 and the set tension of the lower cloth 12 as FL1 are detected by the first tension sensors 15 and 16, and these are input as set values to a controller (not shown). Let me remember it.
上記の状態で両布１１，１２を縫い合せると、
この布１１，１２が制御ローラ３，４を通過す
る。このときに、当該制御ローラ３，４の摩擦抵
抗のために押え金具２との間に張力が発生する。
そして、このときの上布１１の張力をFU2とし、
下布１２の張力をFL2とする。 When both fabrics 11 and 12 are sewn together in the above condition,
The cloths 11, 12 pass through control rollers 3, 4. At this time, tension is generated between the control rollers 3 and 4 and the presser fitting 2 due to frictional resistance.
Then, let the tension of the upper cloth 11 at this time be FU2,
Let the tension of the lower cloth 12 be FL2.
上記張力FU2及びFL2を第２張力センサー９，
１０で検出するとともに、この検出した張力FU2
及びFL2を上記コントローラに入力する。このコ
ントローラでは、上記張力FU2と設定張力FU1と
の差FU2−FU1と、張力FL2と設定張力FL1との
差FL2−FL1を計算する。 The above tensions FU2 and FL2 are detected by the second tension sensor 9,
10, and this detected tension FU2
and FL2 are input to the above controller. This controller calculates the difference FU2-FU1 between the tension FU2 and the set tension FU1, and the difference FL2-FL1 between the tension FL2 and the set tension FL1.
このようにして両張力の差を計算したら、それ
ら両者の差がゼロになるように、上布送りローラ
５又は下布送りローラ６のいずれか、あるいは双
方を駆動し、上記張力FU2＝FU1及びFL2＝FL1
となるような制御をする。 After calculating the difference between both tensions in this way, drive either the upper cloth feed roller 5 or the lower cloth feed roller 6, or both, so that the difference between the two becomes zero, and the above tension FU2=FU1 and FL2=FL1
control so that
上記のようにミシンａの押え金具２に送られる
上布１１及び下布１２のそれぞれの張力は、常
時、設定値であるFU1及びFL1に保たれるので、
それら両者の縫い目にいさり等が発生しなくな
る。 As mentioned above, the tension of the upper fabric 11 and lower fabric 12 sent to the presser foot 2 of sewing machine A is always maintained at the set values FU1 and FL1, so
No sagging or the like will occur in the seams between the two.
図面第１図はこの発明の実施例を示す原理図で
ある。
ａ…ミシン、２…押え金具、ｂ…布端制御装
置、３，４…制御ローラ、５，６…送りローラ、
９，１０…第２張力センサー、ｃ…平行把持装
置、１５，１６…第１張力センサー、ｍ…張力モ
ータ。
FIG. 1 is a principle diagram showing an embodiment of the present invention. a... Sewing machine, 2... Presser metal fitting, b... Fabric edge control device, 3, 4... Control roller, 5, 6... Feed roller,
9, 10... Second tension sensor, c... Parallel gripping device, 15, 16... First tension sensor, m... Tension motor.
Claims (1)
置と、この布端制御装置から離れた位置に設けた
布平行把持装置と、平行把持装置から布端制御装
置までの布に張力を与える張力モータとを備え、
上記布端制御装置は、布端を制御する一対の制御
ローラと、布端の張力を制御する一対の送りロー
ラと、この送りローラから押え金具までの布の張
力を検出する一対の第２張力センサーとからな
り、また、布平行把持装置は、上記布端制御装置
との間における張力を検出する一対の第１張力セ
ンサーを備えてなり、しかも、上記送りローラと
押え金具との間の布の張力が、張力モータで設定
した張力になるように送りローラを制御するコン
トローラを設けた布終端合せ縫い装置。1. A fabric edge control device installed near the presser foot of the sewing machine, a fabric parallel gripping device provided at a distance from this fabric edge control device, and a tension force that applies tension to the fabric from the parallel gripping device to the fabric edge control device. Equipped with a motor,
The cloth edge control device includes a pair of control rollers that control the cloth edge, a pair of feed rollers that control the tension of the cloth edge, and a pair of second tension rollers that detect the tension of the cloth from the feed roller to the presser metal fitting. The cloth parallel gripping device also includes a pair of first tension sensors for detecting the tension between the cloth edge control device and the cloth parallel gripping device, and the cloth parallel gripping device also includes a pair of first tension sensors for detecting the tension between the cloth edge control device and the cloth parallel gripping device. A fabric end stitching device equipped with a controller that controls a feed roller so that the tension of the material becomes the tension set by a tension motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8788089A JPH02268796A (en) | 1989-04-10 | 1989-04-10 | Sewing device for putting cloth-hem together |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8788089A JPH02268796A (en) | 1989-04-10 | 1989-04-10 | Sewing device for putting cloth-hem together |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02268796A JPH02268796A (en) | 1990-11-02 |
| JPH0418877B2 true JPH0418877B2 (en) | 1992-03-27 |
Family
ID=13927181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8788089A Granted JPH02268796A (en) | 1989-04-10 | 1989-04-10 | Sewing device for putting cloth-hem together |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02268796A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671071A (en) * | 1992-08-26 | 1994-03-15 | France Bed Co Ltd | Manufacture apparatus of gore cloth |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63216598A (en) * | 1987-03-06 | 1988-09-08 | 旭化成株式会社 | Cloth end sewing method |
| JPS63216597A (en) * | 1987-03-06 | 1988-09-08 | 旭化成株式会社 | Sewing method |
-
1989
- 1989-04-10 JP JP8788089A patent/JPH02268796A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02268796A (en) | 1990-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |