WO2009031780A1 - Machine à coudre - Google Patents

Machine à coudre Download PDF

Info

Publication number
WO2009031780A1
WO2009031780A1 PCT/KR2008/005009 KR2008005009W WO2009031780A1 WO 2009031780 A1 WO2009031780 A1 WO 2009031780A1 KR 2008005009 W KR2008005009 W KR 2008005009W WO 2009031780 A1 WO2009031780 A1 WO 2009031780A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
jig
corner
support member
elastic support
Prior art date
Application number
PCT/KR2008/005009
Other languages
English (en)
Inventor
Myungwon Seo
Original Assignee
Myungwon Seo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Myungwon Seo filed Critical Myungwon Seo
Priority to CN2008801056276A priority Critical patent/CN101809217B/zh
Publication of WO2009031780A1 publication Critical patent/WO2009031780A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets
    • D05B21/007—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets to obtain circular or elliptical seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/14—Devices for changing speed or for reversing direction of rotation

Definitions

  • the present invention relates to a sewing machine. More particularly, the present invention relates to a sewing machine, capable of adjusting a turning speed of a cloth by precisely detecting a rounded section or a bent section (referred to as a corner) of the cloth while sewing a sleeve or a collar of the cloth, thereby preventing stitches from being concentrated on a specific part of the cloth to prevent the cloth from being damaged.
  • a sewing machine capable of adjusting a turning speed of a cloth by precisely detecting a rounded section or a bent section (referred to as a corner) of the cloth while sewing a sleeve or a collar of the cloth, thereby preventing stitches from being concentrated on a specific part of the cloth to prevent the cloth from being damaged.
  • a sewing machine is device used to make clothes by sewing a front pattern, a rear pattern, arms, sleeves and a collar to each other.
  • a jig is used to rapidly sew the sleeve part and the collar part.
  • FIG. 1 is a plan view representing a sleeve part and a jig for fixing the sleeve part according to the related art.
  • the jig 2 is fabricated by overlapping rectangular boards having a guide groove 22 for guiding a sewing line. A sleeve is inserted between the boards in a spread state. Sensing tapes 24 and 26 are attached to an upper surface of the jig to indicate a start and an end of a corner section.
  • corner section will be referred to as 'a corner'.
  • FIG. 2 is a view representing an example of a sewing machine according to the related art.
  • a sensor S is installed on a sewing machine M to detect the sensing tapes 24 and 26.
  • the sewing machine M is provided at one side thereof with a side roller 5 for moving the jig 2, and a step motor 7 or a mechanical driving device that is used to rotate the side roller 5.
  • the sewing machine M includes an elastic support member 6, which is elastically supported by a side of the jig 2 to prevent the jig 2 from being shaken.
  • a plurality of rollers 62 adhering closely to the jig 2 is mounted at a front end of the elastic support member 6.
  • the jig 2 advances forward by the side roller 5 to perform sewing work. Since the jig 2 is automatically turned as it reaches the corner, the sewing work for the sleeve fabric 100 can be automatically continued even in the corner.
  • FIGS. 3 and 4 are views representing a sewing operation for a sleeve part by using a jig for fixing the sleeve part according to the related art.
  • FIG. 3 represents the sewing operation before the jig reaches the corner.
  • FIG. 4 represents the sewing operation after the jig turns around the corner.
  • the jig 2 is disposed on the sewing part of the sewing machine
  • the needle 300 starts the sewing work while moving up and down according to signals of a control unit.
  • the side roller 5 is rotated by the operation of the step motor 7 or the mechanical driving device.
  • the jig 2 moves forward in an initial section 'A', thereby linearly performing sewing work.
  • a radius of curvature of the jig 2 varies at the corner as the jig 2 rotates, so the elastic support member 6 supported by the jig 2 moves back and forth during the rotation of the jig 2.
  • the present invention has been made to solve the above problem occurring in the prior art, and an object of the present invention is to provide a sewing machine capable of removing inconvenience caused when manually attaching sensing tapes by installing a sensing device for detecting a beginning point and an ending point of a corner of fabric. According to the present invention, the defect rate is remarkably reduced by accurately setting a rotation timing of a jig at all times.
  • a sewing machine including a jig having a guide groove for guiding a sewing line and fixing fabric, a side roller for moving and rotating the jig, a step motor or a mechanical driving device to rotate the side roller, an elastic support member, which is provided at a front end thereof with a roller adhering closely to the jig and is provided at a rear end thereof with a spring, and a detection member including a first sensor installed on the elastic support member to detect a curvature of a corner of the jig and a second sensor which detects a beginning point and an ending point of the corner by detecting the first sensor.
  • the beginning point of the corner is detected, and if the first sensor deviates from the second sensor according to the motion of the elastic support member, the ending point of the corner is detected.
  • a sewing machine is provided with a sensing machine capable of precisely detecting a beginning point and an ending point in a rounded section of a sleeve and a bent section of a collar, thereby removing inconvenience caused when manually attaching the sensing tapes.
  • the turning point of the jig can be accurately set at all times, so that the defect rate can be remarkably reduced.
  • FIG. 1 is a schematic plan view representing a sleeve part and a jig for fixing the sleeve part according to the related art
  • FIG. 2 is a view representing an example of a sewing machine according to the related art
  • FIGS. 3 and 4 are views representing sewing operation for a sleeve part by using a jig for fixing the sleeve part, in which FIG. 3 represents a state before the jig reaches a corner, and FIG. 4 represents a state after the jig turns around the corner;
  • FIG. 5 is a view representing a sewing machine according to the present invention
  • FIGS. 6 to 10 are views illustrating the procedure of sewing sleeves using the sewing machine according to the present invention.
  • FIGS. 11 to 13 are views illustrating the procedure for sewing a collar using the sewing machine according to the present invention.
  • FIG. 5 is a view representing a sewing machine according to the present invention
  • FIGS. 6 to 10 are views illustrating the procedure for sewing sleeves using the sewing machine according to the present invention.
  • a sewing machine M includes a jig 2 for fixing fabric and having a guide groove 22 for guiding a sewing line, a side roller 5 for moving and rotating the jig 2, a step motor 7 or a mechanical driving device for rotating the side roller 5 and an elastic support member 6, which is provided at a front end thereof with rollers 61, 62 and 63 adhering closely to the jig 2 and provided at a rear end thereof with a spring 66 such that the elastic support member 6 is elastically supported against the jig 2.
  • the sewing machine M has a detection unit, which is installed on the elastic support member 6 and includes a first sensor 8 that moves along a curvature of a corner of the jig 2 and a second sensor 9, which detects a beginning point and an ending point of the corner by detecting the first sensor 8.
  • the beginning point of the corner is detected if the first sensor 8 and the second sensor 9 meet together by a forward movement of the elastic support member 6 supported by a side surface of the jig 2.
  • the ending point of the corner is detected if the first sensor 8 deviates from the second sensor 9 by a backward movement of the elastic support member 6.
  • the elastic support member 6 is provided at a front end thereof with a first roller 61, a second roller 62 and a third roller 63 that adhere closely to the jig 2, and provided at a rear end thereof with a support 60 having a rod inserted into a body 70 and a spring 66 fitted around the rod to apply elasticity.
  • the third roller 63 is installed at the foremost side and the second roller 62 and the first roller 61 are sequentially installed at a rear side of the third roller 63.
  • the foremost side refers to a position adjacent to a seat of a worker.
  • the spring 66 supplies elasticity to push the support 60 such that the first to third rollers 61 to 63 are supported against the side surface of the jig 2 all the time.
  • the first sensor 8 includes a bracket 82, which has a 'reverse L' shape and is installed at an upper surface of the support 60 of the elastic support member 6, and a detection unit 84 protruding from an upper surface of an end of the bracket 82 such that the first sensor 8 moves transversely depending on the movement of the elastic support member 6.
  • the second sensor 9 is installed corresponding to a position at which the elastic support member 6 is supported by the beginning point of the corner of the jig 2.
  • the second sensor 9 is connected to a control unit to control the rotating speed of the side roller 5.
  • the first sensor 8 is installed on the elastic support member 6, and the second sensor
  • the second sensor 9 corresponding to the first sensor 8 is installed above the first sensor 8.
  • the second sensor 9 is installed corresponding to a position at which the elastic support member 6 is supported by the beginning point of the corner of the jig 2.
  • sewing operation begins by inserting sleeve fabric 100, which has been inserted into the jig 2, into the sewing machine M.
  • the control unit increases the rotational speed of the step motor 7 or the mechanical driving device and the side roller 5 such that the jig 2 turns more quickly as shown in FIG. 8.
  • the operating speed of a needle 300 is constantly maintained in the level identical to that in the linear sewing operation.
  • the first roller 61 reaches the linear surface of the jig 2 after passing through the ending point of a curved surface of the jig 2, the first sensor 8 deviates from the second sensor 9, thereby informing the control unit that the elastic support member 6 passes through the ending point of the corner.
  • the control unit reduces the rotational speed of the step motor 7 or the mechanical driving device and the side roller 5 into the original speed thereof to begin the sewing operation along a 'B section' of the jig 2.
  • the third roller 63 of the elastic support member 6 moves forward, so that the first sensor 8 approaches the second sensor 9. In this process, if the first sensor 8 matches with the second sensor
  • the control unit recognizes that the elastic support member 6 reaches the beginning point of the corner. [59] Accordingly, the control unit increases the rotational speed of the step motor 7 or the mechanical driving device and the side roller 5 such that the jig 2 may turn more quickly. [60] In this case, the operating speed of a needle 300 is constantly maintained in the level identical to that in the linear sewing operation. [61] Hereinafter, a sewing process for collar fabric 200 will be described with reference to
  • FIGS. 11 to 13 are views illustrating a sewing process for the collar fabric using the sewing machine according to the present invention by stages.
  • the sewing operation starts from an 'F' section of the jig 2 by inserting the collar fabric 200, which has been inserted into the inner side of the jig 2, into the sewing machine M.
  • the elastic support member 6 moves forward along a curved surface of the corner, so that the first sensor 8 approaches the second sensor 9.
  • the control unit recognizes that the elastic support member 6 reaches a beginning point of the corner.
  • the control unit increases the rotational speed of the step motor 7 or the mechanical driving device and the side roller 5 such that the jig 2 turns more quickly.
  • a needle 300 is fixed at a descending state.
  • the control unit recognizes that the elastic support member 6 passes through the ending point of the corner.
  • the control unit operates the needle 300 to perform the sewing operation.
  • the control unit reduces the speed of the step motor 7 or the mechanical driving device and the side roller 5 into the original speed to perform the sewing operation along a 'G section' of the jig 2.
  • the elastic support member 6 moves forward along a curved surface of the corner, so that the first sensor 8 approaches the second sensor 9.
  • the control unit recognizes that the elastic support member 6 reaches a beginning point of the corner. [70] Accordingly, the control unit increases the rotational speed of the step motor 7 or the mechanical driving device and the side roller 5 such that the jig 2 may turn more quickly.
  • a needle 300 is fixed at a descending state.
  • the control unit increases the rotational speed of the step motor 7 or the mechanical driving device and the side roller 5 such that the jig 2 turns more quickly.
  • the needle 300 is operated a speed identical to that in the sewing operation for the linear section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

La présente invention concerne une tête sauteuse (2) comportant une rainure de guidage permettant de guider une ligne de couture et de fixer le tissu ; un rouleau latéral (5) permettant de déplacer et de faire tourner la tête sauteuse (2), un moteur pas-à-pas (7) ou un dispositif d'entraînement mécanique permettant de faire tourner le rouleau latéral (5), un élément de support élastique (6) qui est muni, au niveau de son extrémité avant, d'un rouleau adhérant étroitement à la tête sauteuse (2) et qui est muni, au niveau de son extrémité arrière, d'un ressort (66), et un élément de détection comportant un premier capteur (8), installé sur l'élément de support élastique (6) pour détecter un cambrage d'un coin de la tête sauteuse (2), et un second capteur (9), qui détecte un point de démarrage et un point de fin du coin en détectant le premier capteur (8). Si le premier capteur (8) correspond au second capteur (9), selon un mouvement de l'élément de support élastique (6) supporté par un côté de la tête sauteuse (2), le point de démarrage du coin est détecté, et si le premier capteur (8) dévie du second capteur (9) selon un mouvement de l'élément de support élastique, le point de fin du coin est détecté.
PCT/KR2008/005009 2007-09-04 2008-08-27 Machine à coudre WO2009031780A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008801056276A CN101809217B (zh) 2007-09-04 2008-08-27 缝纫机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0089280 2007-09-04
KR1020070089280A KR100920444B1 (ko) 2007-09-04 2007-09-04 봉제용 재봉틀

Publications (1)

Publication Number Publication Date
WO2009031780A1 true WO2009031780A1 (fr) 2009-03-12

Family

ID=40429058

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/005009 WO2009031780A1 (fr) 2007-09-04 2008-08-27 Machine à coudre

Country Status (3)

Country Link
KR (1) KR100920444B1 (fr)
CN (1) CN101809217B (fr)
WO (1) WO2009031780A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2540894A1 (fr) * 2011-06-30 2013-01-02 Aisin Seiki Kabushiki Kaisha Unité manuelle de commande et machine à coudre à fonction de broderie à unité manuelle de commande

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850059B (zh) * 2011-12-27 2016-05-11 苏运松 数控多功能自动缝纫机的缝纫模板滚轮夹持驱动装置
CN104711786A (zh) * 2015-03-28 2015-06-17 张正清 平缝机轨道器
KR101633273B1 (ko) * 2016-01-30 2016-06-24 황일섭 패턴 재봉기
KR102029590B1 (ko) 2018-06-25 2019-10-08 서호성 재봉기의 재봉물 두께 감지 장치
CN108691105A (zh) * 2018-07-06 2018-10-23 宁波舒普机电股份有限公司 一种自动实现缝纫结束点设置的花样缝纫机
CN108950898B (zh) * 2018-10-09 2024-06-07 石狮市伟马智能科技股份有限公司 一种圆领缝纫机
CN108914410B (zh) * 2018-10-18 2023-07-14 安徽即刻动身健身器械科技有限公司 一种布套连续缝制翻套的加工设备
KR102104419B1 (ko) * 2018-11-30 2020-04-24 김태범 사물인터넷을 이용한 인공지능 재봉틀 및 재봉틀 제어 방법
CN114457514B (zh) * 2021-12-24 2023-09-08 石狮市伟马智能科技股份有限公司 一种圆领缝纫机及多色圆领的缝纫方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271772A (en) * 1977-09-14 1981-06-09 Ugo Pignatti Sewing machine attachment for edgings and collars
KR920014975A (ko) * 1991-01-18 1992-08-26 틸만스;클라인 재봉틀에서 재봉물을 광학적으로 탐색하기 위한 장치
JPH0796091A (ja) * 1993-09-30 1995-04-11 Matsuka Shoten:Kk 敷物周縁部の縫製装置
JPH08187380A (ja) * 1992-02-18 1996-07-23 Kato Sewing Mach Kogyo:Kk 縫製装置
US5628264A (en) * 1995-03-16 1997-05-13 Union Special Corporation Sleeve making method and apparatus
US6035794A (en) * 1998-09-04 2000-03-14 Atlanta Attachment Company Automatic collar loading system and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271772A (en) * 1977-09-14 1981-06-09 Ugo Pignatti Sewing machine attachment for edgings and collars
KR920014975A (ko) * 1991-01-18 1992-08-26 틸만스;클라인 재봉틀에서 재봉물을 광학적으로 탐색하기 위한 장치
JPH08187380A (ja) * 1992-02-18 1996-07-23 Kato Sewing Mach Kogyo:Kk 縫製装置
JPH0796091A (ja) * 1993-09-30 1995-04-11 Matsuka Shoten:Kk 敷物周縁部の縫製装置
US5628264A (en) * 1995-03-16 1997-05-13 Union Special Corporation Sleeve making method and apparatus
US6035794A (en) * 1998-09-04 2000-03-14 Atlanta Attachment Company Automatic collar loading system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2540894A1 (fr) * 2011-06-30 2013-01-02 Aisin Seiki Kabushiki Kaisha Unité manuelle de commande et machine à coudre à fonction de broderie à unité manuelle de commande

Also Published As

Publication number Publication date
KR20090024334A (ko) 2009-03-09
KR100920444B1 (ko) 2009-10-08
CN101809217B (zh) 2012-11-21
CN101809217A (zh) 2010-08-18

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