EP4180560A1 - Procédé de création d'un ensemble de données de couture en tant que programme de couture pour coudre un profil de couture sur un article à coudre présentant des structures de produit à coudre - Google Patents

Procédé de création d'un ensemble de données de couture en tant que programme de couture pour coudre un profil de couture sur un article à coudre présentant des structures de produit à coudre Download PDF

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Publication number
EP4180560A1
EP4180560A1 EP22205273.0A EP22205273A EP4180560A1 EP 4180560 A1 EP4180560 A1 EP 4180560A1 EP 22205273 A EP22205273 A EP 22205273A EP 4180560 A1 EP4180560 A1 EP 4180560A1
Authority
EP
European Patent Office
Prior art keywords
sewing
sewing material
position markers
material holder
structures
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.)
Withdrawn
Application number
EP22205273.0A
Other languages
German (de)
English (en)
Inventor
Andreas Dyck
Alexander Penner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerkopp Adler GmbH
Original Assignee
Duerkopp Adler GmbH
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 Duerkopp Adler GmbH filed Critical Duerkopp Adler GmbH
Publication of EP4180560A1 publication Critical patent/EP4180560A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D05B19/04—Sewing machines having electronic memory or microprocessor control unit characterised by memory aspects
    • D05B19/08—Arrangements for inputting stitch or pattern data to memory ; Editing stitch or pattern data
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D05B19/12—Sewing machines having electronic memory or microprocessor control unit characterised by control of operation of machine
    • D05B19/16—Control of workpiece movement, e.g. modulation of travel of feed dog
    • 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
    • D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
    • D05C9/02—Appliances for holding or feeding the base fabric in embroidering machines in machines with vertical needles
    • D05C9/04—Work holders, e.g. frames
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H3/00—Inspecting textile materials
    • D06H3/08—Inspecting textile materials by photo-electric or television means

Definitions

  • the invention relates to a method for creating a sewing data record as the basis of a sewing program for sewing a seam course on a sewing material having structures. Furthermore, the invention relates to a sewing material holder for carrying out such a method and a sewing system for carrying out such a method, having at least one such sewing material holder.
  • a sewing system for sewing a seam course on a sewing material is known from EP 3 088 587 B1 .
  • a method for controlling the position of a seam relative to structures of a sewing material is known from WO 2019/219 296 A1 .
  • the DE 35 35 664 C2 discloses a method for quilting along the contours of patterns applied to flat elastic fabrics and an apparatus for carrying out the method.
  • the DE 10 2018 209 000 A1 discloses a method of generating an image showing an embroidery area in an embroidery hoop to enable computer assisted machine embroidery.
  • the U.S. 2014/0230706 A1 discloses a sewing machine system and an embroidery hoop.
  • 2011/0048300 A1 , the EP 2 357 272 A1 , the US 8,738,171 B2 and the U.S. 8,061,286 B2 disclose a sewing machine and a computer readable medium storing a sewing machine control program.
  • the U.S. 11,268,222 B2 reveals a sewing machine.
  • the DE 10 2015 116 112 A1 discloses a shape recognition apparatus and a sewing machine.
  • the DE 20 2019 101 858 U1 reveals a sewing machine.
  • the U.S. 2019/0340784 A1 discloses a method and system for automatically calibrating needle position.
  • this object is achieved by a method having the features specified in claim 1 .
  • the use of at least four position markers on a sewing material holder, on which the sewing material is in turn held allows imaging errors of the camera used in the method to be recorded very precisely.
  • the distortion can be recorded very precisely, with a trapezoidal distortion in particular being able to be recorded exactly.
  • distortion errors can be taken into account that could not be detected or could only be detected with great effort when the camera was originally calibrated.
  • a sewing program which is created on the basis of an image recorded using the four position markers and the processed target/actual image deviations, ensures very precise sewing of a seam course in the exact position relative to the sewn material structures.
  • the method for creating a sewing data set combines an initial calibration of the camera using a calibration grid on the one hand and a comparison of an actual image of a sewing material holder with sewing material and position markings with a target image that shows a target position of sewing material structures and a target dummy profile in one Sewing system coordinate system shows, on the other hand. This combination ensures that a resulting sewing data set is accurate.
  • the method according to the invention can be used in particular in the case of position-accurate sewing on CNC sewing machines relative to the structures of the material to be sewn, even in the case of material blanks that differ from one part to the next.
  • the exact dimensional accuracy of the corresponding sewing material blanks is not important when using the method.
  • sewing material having sewing material structures are car seats, dashboards, trouser pockets, flaps, belts, handbags.
  • the fabric structures can be perforations.
  • Preparatory steps according to claim 4 represent a possibility of how the coordinates of the position markers are recorded in absolute terms before the sewing program is created.
  • a QR code according to claim 8 has turned out to be a robust information carrier.
  • a set of sewing material holders according to claim 10 enables a high sewing material throughput when sewing through the sewing system.
  • a sewing system 1 has a sewing machine 2 for sewing a seam course on a sewn material part 3, which has sewn material structures in the 1 are not shown.
  • the sewing machine 2 sews the material to be sewn 3 in a stitch formation area 4 by forming at least one seam 5. It is used to transport the material to be sewn 3 from a feed area 6 to the stitch formation area 4 and to transport the material to be sewn 3 from the stitch formation area 4 to a deposit area 7 a sewing material sewing transport device 8.
  • the latter transports a holding frame 9 on which or to which the sewing material 3 is fixed.
  • the holding frame 9 is also referred to below as a workpiece holder.
  • the holding frame 9 is guided by a linear guide 10 of the sewing material transport device 8.
  • the linear guide 10 extends between the feed area 6 via the stitch formation area 4 to the deposit area 7.
  • These three areas 4, 6 and 7 represent a sewing transport -Area 11.
  • a sewing transport drive 12 is used to move the holding frame 9 between the feed area 6 (cf. the current position in the figure) and the depositing area 7.
  • the latter includes a controlled drivable xy-coordinate table to generate a course of the seam 5 when sewing.
  • a corresponding xy coordinate system is in the 1 shown.
  • the sewing system 1 also has a sewing material supply transport device 13.
  • the latter is used to transport the sewing material 3 from a sewing material feed stacking area 14 to the feeding area 6 of the sewing material sewing transport device 8 and to transport the sewing material 3 from the storage area 7 of the sewing material
  • the sewing material supply transport device 13 transports the sewing material 3 in a feed supply transport area 16 and in a deposit supply transport area 17.
  • the feed supply transport area 16 contains the sewing material feed stacking area 14 and the feed area 6.
  • the depositing-supply-transporting area 17 contains the depositing area 7 and the sewing material depositing stacking area 15.
  • the sewing material supply transport device 13 is designed as a gripping robot and contains a robot base unit 18 which is connected to a sewing material gripper 20 via an articulated connection 19 and controls this.
  • one and the same gripping robot 13 is designed for transporting the sewn material 3 within the feed/supply transport area 16 on the one hand and within the deposit/supply transport area 17 on the other hand.
  • a path of the sewing material between the sewing material supply stacking area 14 and the sewing material laying down stacking area 15 is shown in FIG 1 represented by arrows.
  • the sewing material holder 9 has a total of four position markers 21, 22, 23, 24, which are applied to the sewing material holder 9 at a distance from one another, i.e. positions with different xy coordinate pairs, i.e. individual pairs each consisting of an x coordinate and a y coordinate the sewing material holder 9.
  • FIG. 2 shows a further embodiment of a sewing material holder 25 with a sewing material applied there and fixed with the sewing material holder 25 using the example of a car seat.
  • the sewing material has sewing material structures 27 in the form of perforations, which are introduced into the sewing material 26 in the form of a diamond pattern. Between rhombuses 28 of this perforation rhombus pattern there are perforation-free sewing material areas 29, along which seams 29 are applied very precisely in the form of a seam course, which is 3 and 4 is shown in more detail.
  • the sewing material holder 25 in turn has four position markers 21 to 24 which, in terms of their function, correspond to the position markers of the embodiment 1 are equivalent to.
  • the material holder 25 has a rectangular basic shape.
  • the four position markers 21 to 24 are firmly attached to the four corners of the material holder 25 on this, so that their position relative to the material holder 25 after the application of the position markers 21 to 24 remains fixed.
  • Each of the position markers 21 to 24 is designed in the manner of a crosshair with an exactly defined position marker reference center 30 .
  • This reticle can be formed by light and dark quadrants alternating in the circumferential direction around the center point 30 .
  • the position markers 21 to 24 are attached to the sewing material holder 9 or 25 in such a way that the position markers remain visible after the respective sewing material 3 or 26 has been fixed to the sewing material holder 9 or 25 in a plan view from above.
  • the workpiece holder 25 also carries an information carrier 31 which has information about the x and y coordinates of the four position markers 21 to 24 specific to the workpiece holder. Using the information on the information carrier 31, individual contributions of the coordinates of the four position markers 21 to 24 in the case of the sewing material holder 9 or 25 guided along the linear guide 10 can be exactly and absolutely determined in an xy coordinate system of the sewing unit 1. Such individual contributions can result from the individual production of the respective material holder 25 and/or the respective position marker 21 to 24 .
  • the position of the position markers 21 to 24 on the sewing material holder 9 or 25 can be absolutely determined in a previously defined position of the sewing material holder, guided by the linear guide 10, and these x and y coordinates of the position markers 21 to 24 can be stored in the information carrier 31.
  • the information carrier 31 can be designed as a QR code.
  • the information carrier 31 can also be an RFID chip.
  • a sewing data record is first created for processing a sewing program for sewing this seam course on the sewing material 3 or 26 .
  • a camera 32 (cf 1 ) of the sewing unit 1 is calibrated. This is done by detecting a distortion of the camera 32 over an image field that lies in an image plane, using the recording of a Calibration grid by the camera 32 in the field of view.
  • a chessboard structure with an exactly known size of the individual fields can be used as a calibration grid, with which edge regions of an image field of the camera 32 required for capturing the sewing material on the respective sewing material holder 3 or 26 can be recorded.
  • the sewing material part 3 or 26 is fixed on the sewing material holder 9 or 25.
  • the position markers 21 to 24 can still be captured by the camera 32 after this fixation.
  • the respective x-coordinate and the respective y-coordinate of each of the position markers 21 to 24 are known due to a preparatory measurement and/or by reading out the information carrier 31 .
  • an actual image of the sewing material holder 9 or 26 with the sewing material 3 or 25 and the position markers 21 to 24 is then recorded with the camera 32 .
  • This actual image is then overlaid with a target image, which shows a target position of the fabric structures 27 and a target seam course for the seams 29 in the xy coordinate system of the sewing unit 1 .
  • Deviations between the actual image and the target image are then recorded, camera calibration information that was obtained in the calibration step explained above and, on the other hand, the x and y coordinates of the position markers 21 to 24 being included in this recording of the deviations, which are known in absolute terms in the xy coordinate system of the sewing unit 1.
  • the sewing unit 1 can have a set of sewing material holders 9 or 25, which are successively equipped with sewing material 3 or 26 and processed during sewing.
  • the course of the seam can then be applied to the sewing material 3 or 26 in the correct position using the sewing unit 1 in accordance with the corrected target image.
  • the seams 29 run exactly centrally along the spaces between the diamonds 28 of the perforated diamond structure.
  • a positional accuracy of this seam line with respect to center lines along the spaces between the diamonds 28 can be better than 0.1 mm and in particular can be better than 0.05 mm. Deviations from the ideal course of the middle are in any case so small that they remain invisible even to a critical observer and are much smaller than the strength of a sewing thread for creating the seams 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Automatic Embroidering For Embroidered Or Tufted Products (AREA)
EP22205273.0A 2021-11-09 2022-11-03 Procédé de création d'un ensemble de données de couture en tant que programme de couture pour coudre un profil de couture sur un article à coudre présentant des structures de produit à coudre Withdrawn EP4180560A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021212588.3A DE102021212588A1 (de) 2021-11-09 2021-11-09 Verfahren zum Erstellen eines Näh-Datensatzes als Grundlage eines Nähprogramms zum Nähen eines Nahtverlaufes auf einem Nähgutstrukturen aufweisenden Nähgut

Publications (1)

Publication Number Publication Date
EP4180560A1 true EP4180560A1 (fr) 2023-05-17

Family

ID=84361426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22205273.0A Withdrawn EP4180560A1 (fr) 2021-11-09 2022-11-03 Procédé de création d'un ensemble de données de couture en tant que programme de couture pour coudre un profil de couture sur un article à coudre présentant des structures de produit à coudre

Country Status (6)

Country Link
EP (1) EP4180560A1 (fr)
JP (1) JP2023070654A (fr)
KR (1) KR20230067524A (fr)
CN (1) CN116103845A (fr)
DE (1) DE102021212588A1 (fr)
TW (1) TW202319610A (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535664A1 (de) 1985-10-05 1987-04-09 Bayer Ag Fungizide mittel auf imidazolinylpyridin-derivat-basis
US20090188415A1 (en) * 2008-01-24 2009-07-30 Brother Kogyo Kabushiki Kaisha Sewing machine, and computer-readable storage medium storing sewing machine control program
US20110048300A1 (en) 2009-09-03 2011-03-03 Brother Kogyo Kabushiki Kaisha Sewing machine and computer-readable medium storing sewing machine control program
EP2357272A1 (fr) 2010-02-12 2011-08-17 Brother Kogyo Kabushiki Kaisha Machine à coudre et support non transitoire lisible par un ordinateur stockant le programme de commande de la machine à coudre
US8061286B2 (en) 2008-01-24 2011-11-22 Brother Kogyo Kabushiki Kaisha Sewing machine and computer-readable medium storing sewing machine control program
US8738171B2 (en) 2011-09-28 2014-05-27 Brother Kogyo Kabushiki Kaisha Sewing machine and non-transitory computer-readable medium
US20140230706A1 (en) 2013-02-15 2014-08-21 Brother Kogyo Kabushiki Kaisha Non-transitory computer-readable medium, sewing machine system, and embroidery frame
DE102015116112A1 (de) 2014-09-24 2016-03-24 Juki Corporation Formerkennungseinrichtung und Nähmaschine
US20170356112A1 (en) * 2016-06-08 2017-12-14 One Sciences, Inc. Methods and systems for stitching along a predetermined path
EP3088587B1 (fr) 2015-04-28 2018-06-13 Dürkopp Adler AG Système de couture
US20190340784A1 (en) 2018-05-02 2019-11-07 Orisol Taiwan Limited Method and System for Automatic Calibration of Needle Position
WO2019219296A1 (fr) 2018-05-18 2019-11-21 Pfaff Industriesysteme Und Maschinen Gmbh Procédé de régulation de position d'une couture par rapport à des structures d'un article à coudre
DE102018209000A1 (de) 2018-06-07 2019-12-12 Zeng Hsing Industrial Co., Ltd. Verfahren zum Generieren eines Bilds, das eine Stickfläche in einem Stickrahmen für computerisiertes Maschinensticken zeigt
DE202019101858U1 (de) 2019-04-01 2020-07-03 Dürkopp Adler AG Nähvorrichtung
US11268222B2 (en) 2019-02-26 2022-03-08 Juki Corporation Sewing machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535644A1 (de) 1985-10-05 1987-04-16 Stutznaecker Emil Naehmasch Verfahren zum steppen entlang der konturen von auf flaechigen elastischen stoffen aufgebrachten mustern und vorrichtung zur durchfuehrung des verfahrens

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535664A1 (de) 1985-10-05 1987-04-09 Bayer Ag Fungizide mittel auf imidazolinylpyridin-derivat-basis
US20090188415A1 (en) * 2008-01-24 2009-07-30 Brother Kogyo Kabushiki Kaisha Sewing machine, and computer-readable storage medium storing sewing machine control program
US8061286B2 (en) 2008-01-24 2011-11-22 Brother Kogyo Kabushiki Kaisha Sewing machine and computer-readable medium storing sewing machine control program
US20110048300A1 (en) 2009-09-03 2011-03-03 Brother Kogyo Kabushiki Kaisha Sewing machine and computer-readable medium storing sewing machine control program
EP2357272A1 (fr) 2010-02-12 2011-08-17 Brother Kogyo Kabushiki Kaisha Machine à coudre et support non transitoire lisible par un ordinateur stockant le programme de commande de la machine à coudre
US8738171B2 (en) 2011-09-28 2014-05-27 Brother Kogyo Kabushiki Kaisha Sewing machine and non-transitory computer-readable medium
US20140230706A1 (en) 2013-02-15 2014-08-21 Brother Kogyo Kabushiki Kaisha Non-transitory computer-readable medium, sewing machine system, and embroidery frame
DE102015116112A1 (de) 2014-09-24 2016-03-24 Juki Corporation Formerkennungseinrichtung und Nähmaschine
EP3088587B1 (fr) 2015-04-28 2018-06-13 Dürkopp Adler AG Système de couture
US20170356112A1 (en) * 2016-06-08 2017-12-14 One Sciences, Inc. Methods and systems for stitching along a predetermined path
US20190340784A1 (en) 2018-05-02 2019-11-07 Orisol Taiwan Limited Method and System for Automatic Calibration of Needle Position
WO2019219296A1 (fr) 2018-05-18 2019-11-21 Pfaff Industriesysteme Und Maschinen Gmbh Procédé de régulation de position d'une couture par rapport à des structures d'un article à coudre
DE102018209000A1 (de) 2018-06-07 2019-12-12 Zeng Hsing Industrial Co., Ltd. Verfahren zum Generieren eines Bilds, das eine Stickfläche in einem Stickrahmen für computerisiertes Maschinensticken zeigt
US11268222B2 (en) 2019-02-26 2022-03-08 Juki Corporation Sewing machine
DE202019101858U1 (de) 2019-04-01 2020-07-03 Dürkopp Adler AG Nähvorrichtung

Also Published As

Publication number Publication date
JP2023070654A (ja) 2023-05-19
DE102021212588A1 (de) 2023-05-11
TW202319610A (zh) 2023-05-16
KR20230067524A (ko) 2023-05-16
CN116103845A (zh) 2023-05-12

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