EP2503041B1 - Augenknopfloch-Nähmaschine sowie Verfahren zum Nähen einer einen Gimpenfaden aufweisenden Augenknopfloch-Naht - Google Patents

Augenknopfloch-Nähmaschine sowie Verfahren zum Nähen einer einen Gimpenfaden aufweisenden Augenknopfloch-Naht Download PDF

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Publication number
EP2503041B1
EP2503041B1 EP12157164.0A EP12157164A EP2503041B1 EP 2503041 B1 EP2503041 B1 EP 2503041B1 EP 12157164 A EP12157164 A EP 12157164A EP 2503041 B1 EP2503041 B1 EP 2503041B1
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EP
European Patent Office
Prior art keywords
gimp thread
gimp
sewing
thread
sewing machine
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Active
Application number
EP12157164.0A
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German (de)
English (en)
French (fr)
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EP2503041A1 (de
Inventor
Thomas Nöltge
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 AG
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Duerkopp Adler AG
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Publication of EP2503041A1 publication Critical patent/EP2503041A1/de
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/06—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/06—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes
    • D05B3/08—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes for buttonholes with eyelet ends
    • 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

Definitions

  • the invention relates to an eyelet buttonhole sewing machine and a method of sewing a eyelet buttonhole seam having a gimp thread.
  • Such a sewing machine is known from the EP 1 722 021 B1 ,
  • the eyelet buttonhole sewing machine sews the eyelet buttonhole seam with three threads, namely a needle thread, a hook thread and a gimp thread.
  • the gimp thread serves to compliment the look of the eyelet buttonhole seam and thus the eye buttonhole.
  • a buttonhole sewing machine in which a gimp thread is fed via the actuation of an engaging lever prior to the beginning of an automatic sewing cycle.
  • a gimp thread supply device with a monitoring sensor and a control device leads to the possibility of reliably monitoring the inclusion of the gimp thread when sewing the eye buttonhole seam. If the eyelet buttonhole suture is undesirably sewn without the inclusion of the gimp thread, the controller may issue a signal and / or otherwise take countermeasures. If the monitor sensor detects that the gimp thread pull position is not reached, a corresponding fault signal may be passed to the controller. Unwanted production of the eye buttonhole without the gimp thread is avoided.
  • the eyelet buttonhole sewing machine may have a sewing mechanism that is pivotally configured to form the eyelet buttonhole seam.
  • the monitoring sensor may be configured such that a switching unit of the monitoring sensor only triggers when the gimp thread guide unit is in the neutral position at a certain pivot position of the sewing, which assumes the pivot position during the sewing of the eyelet buttonhole seam.
  • the monitoring sensor can be mounted together with the gimp thread guiding device on a pivoting sewing machine carrier in the "swiveling sewing machine" version be so that triggering a switching unit of the monitoring sensor in each pivot position of the sewing is possible.
  • a clamping lever design of the gimp thread guide unit as Gimpfaden-clamping lever is inexpensive. The clamping lever can clamp and guide the gimp thread at the same time.
  • the monitoring sensor can be used as an induction sensor, as a capacitive sensor or as an optical sensor, for. B. as a light barrier, be executed.
  • a thread cutting device leads to a reproducible thread cut after the formation of the eye buttonhole seam.
  • a guide unit according to claim 4 automatically returns to the neutral position as the home position upon completion of the eye buttonhole sewing program.
  • the guide unit is configured as the gimp thread-clamping unit, the gimp thread is automatically withdrawn upon return of the guide unit to the neutral position, thus avoiding unwanted protrusion of the gimp thread at the seam beginning of the subsequently sewn eye buttonhole seam.
  • An adjustable stop according to claim 5 allows the specification of the position of the guide unit in the neutral position. This can be used to fine-tune the monitoring sensor and / or to specify a guide unit which is then designed to be clamped when it returns to the neutral position ralposition withdrawn gimp thread length can be used.
  • the adjustable stop can be realized via a stop screw.
  • a clamping force setting unit enables a fine adjustment of the clamping force of the gimp thread clamping lever, so that when sewing the eyelet hole seam entrained gimp thread on the one hand sufficiently large pulling force on the clamping lever to transfer this in the gimp thread pulling position exercises, on the other hand but there is no excessive tension, which makes it difficult to take along the gimp thread.
  • the clamping force specification unit can be realized via an adjustable clamping spring. To adjust the clamping spring can serve a set screw.
  • an eye-buttonhole sewing machine C-shaped that is, it has an upper arm 1, a lower, cabinet-like base plate 2 and an interconnecting, approximately vertical stand 3 on.
  • an arm shaft 4 is mounted in a conventional manner, which is driven by a drive motor, not shown.
  • the arrangement of such a drive motor on such a sewing machine is off DE 102 25 511 C1 and DE 102 25 512 C1 known.
  • From the arm shaft 4, the drive of a vertically displaceable needle bar 5 with a needle 6 and a vibratory drive are derived for this purpose in a conventional manner.
  • the needle 6 guides a needle thread 7.
  • a Cartesian xyz coordinate system is used below.
  • the x-axis runs in the Fig. 1 perpendicular to the drawing plane and out of it.
  • the y-axis runs in the Fig. 1 to the right.
  • the z-axis runs in the Fig. 1 up.
  • an xy stage 8 is arranged, which is a cross slide movable in two horizontal coordinate directions, namely the x direction and the y direction.
  • the xy-table 8 is formed in a conventional manner, as for example from the DE 198 07 771 C1 (Corr. US 6,095,066 ) is known.
  • the drive of the xy-table 8 by means not shown drives, namely an x-drive and a y-drive, which are usually manner to positionable electric motors, so usually stepper motors, but also controllable DC motors, acts.
  • Such a configuration is from the DE 102 25 511 1 C1 and the DE 102 25 512 C1 known.
  • a two-part support plate 9 is arranged on the xy table 8. Each partial support plate 9 is associated with a Nähgutklammer 10. Such an arrangement is known from EP 1 722 021 B 1 known.
  • Sewing material clamps 10 each have a clamping plate 11. Sewing material 12 can be clamped between the clamping plates 11 and a support plate 13. In an opening of the support plate 13 is a throat plate 14 with a passage opening 15 (see. Fig. 2 ) arranged for a gimp thread 16.
  • the clamping plates 11 are attached to double-armed bearing levers 17. Details of the structure and the drive of the Nähgutklammern 10 result from the DE 102 16 808 C2 (corresponding US 6,722,299 B2 ), to which extent is referred.
  • a buttonhole cutting device 18 which has a lower, in the base plate 2 vertically, ie in the z-direction, stationarily arranged, not shown, knife unit and an upper cutting block 19. Details of the structure of the cutting device 18 will be apparent from the EP 1 722 021 B1 ,
  • the gimp thread 16 is fed to the stitch forming area by means of a gimp thread feeding device 23.
  • the gimp thread feeder 23 is in detail in the Fig. 2 and 3 shown.
  • the gimp thread feeder 23 has a gimp thread guide device 24 with a gimp thread guide unit 25 guiding the gimp thread 16.
  • the gimp thread guide unit 25 is formed as the gimp thread 16 clamping gimp thread clamp lever.
  • the gimp thread clamping lever 25 has a clamping plate 26.
  • the latter is designed as a spring which has a Adjusting screw 28 with specifiable force on the clamping plate 26 presses.
  • a free end of the clamping plate 26 is designed as a switching lug 29.
  • the latter is part of a monitoring sensor 30 for monitoring a position of the gimp thread guide unit 25, ie the clamping lever.
  • the gimp thread clamping lever 25 is a sewing component which can be displaced over the gimp thread 16 to be sewn.
  • the gimp thread clamping lever 25 is about a pivot joint 31 with a horizontal, parallel to the z-axis pivot axis relative to a housing-fixed bracket 32 between a in the Fig. 2 shown neutral position and one in the Fig. 3 pivoted gimp thread pulling position shown.
  • a position of the gimp thread clamping lever 25 in the neutral position can be predetermined via an adjustable stop 33.
  • the latter has a screwed through the bearing block 32 stop screw 34, the free end rests in the neutral position on a counter-stop boom 35 of the gimp thread clamping lever 25.
  • a position of the switching flag 29 are relatively adjusted relative to a switching unit 36 of the monitoring sensor 30.
  • the Monitoring sensor 30 is designed as a contactless sensor.
  • the monitoring sensor 30 may be designed as an induction sensor, as a capacitive sensor or as an optical sensor.
  • An example of an optical sensor is a light barrier.
  • the base plate 2 is a schematic in the Fig. 1 indicated thread cutting device 37 is housed, with the after the complete formation of the eye buttonhole seam 20 of the needle thread 7, the gimp thread 16 and the looper thread 22 are cut off.
  • the sewing machine further has a control device 38, which in the Fig. 1 and 2 is also shown schematically and is connected via signal line 39 to the switching unit 36 of the monitoring sensor 30 in signal connection.
  • the gimp thread 16 is fed to the stitch portion of a gimp thread supply, not shown in the drawing, via a feed sleeve 40. From there, the path of the gimp thread 16 is initially guided by a guide wire 41 and then via a housing-fixed guide opening 42. Following the guide opening 42, the gimp thread clamping lever 25 serves to guide the gimp thread 16. Following the guide through the gimp thread clamping lever 25, the gimp thread 16 first passes through a further guide opening 42 fixed to the housing, a further clamping unit 44 fixed to the housing and another, fixed to the housing Guide opening 45. Following this, the gimp thread 16 passes through the passage opening 15 of the throat plate 14.
  • the fabric 12 When sewing the eyelet buttonhole seam 20, the fabric 12 is positioned on the xy table 8 and held by the clamping plates 11, which are also referred to as staples, during transport.
  • the eye buttonhole seam 20 is formed by performing a zig-zag seam using the needle thread 7 and the looper thread 22, a bead that surrounds the gimp thread 16 after exiting the throat plate 14, clamps, moves along and thereby continuously over the Gimp thread feeder 23 nachONE.
  • the pulling force exerted on the gimp thread 16 during the formation of the eyelet buttonhole seam 20 causes the gimp thread 26 to move the gimp thread clamping lever 25 from the initially lowered neutral position shown in FIG Fig.
  • a clamping force of the gimp thread clamping lever 25 on the gimp thread 16 is predetermined via the clamping force setting unit 27 in such a way that the pulling force of the gimp thread 16 for changing over the gimp thread clamping lever 25 into the gimp thread pulling position Fig. 3 when sewing the eye-buttonhole seam 20 is sufficient.
  • the gimp thread clamping lever 25 When switching the gimp thread clamping lever 25 between the neutral position and the gimp thread pulling position triggers the monitoring sensor 30 and reports the controller 38 via the signal line 39, the signal "correct gimp thread entrainment".
  • the sewing program for sewing the eyelet buttonhole seam 20 is then processed by the sewing machine.
  • the end of the eye-buttonhole seam 20 is in the embodiment after Fig. 4 open, but may also have a wedge lock 46 at location 46.
  • the needle thread 7, the gimp thread 16 and the looper thread 22 are cut by the thread cutter 37. Due to the weight of the gimp thread clamping lever 25 this pivots after cutting off the gimp thread 16, ie in the absence of gimp thread tension, from the gimp thread pull position back to the neutral position.
  • the gimp thread 16 is withdrawn so far through the passage opening 15 in the throat plate 14 that the gimp thread 16 is safely taken the next time an eyelet button seam 20 during formation of the bead of the needle thread 7 and the looper thread 22, with a free end of the gimp thread 16 is not too long, so that it unwanted protrudes from the generated bead and affects the optical quality of the eye buttonhole formed.
  • the retracted during pivoting back of the gimp thread clamping lever 25 in the neutral position gimp thread length can be specified via the stop 33.
  • the cutting device 18 cuts the eye buttonhole.
  • the switching unit 36 of the monitoring sensor 30 does not trigger at the start of sewing the eyelet buttonhole seam 20.
  • the timer program may be a program module of the entire eye buttonhole sewing program.
  • the timer program outputs the signal "error at the start of the eyelet buttonhole sewing" after a predetermined period of time from the beginning of the sewing of the eye buttonhole seam without the switching unit 36 triggers.
  • the control device 38 then interrupts the sewing process and outputs on a display 47 of the sewing machine an error message. The operator may then decide whether to continue the eyelet buttonhole sewing program without the gimp thread 16 or to cancel altogether.
  • the gimp thread breaks or the gimp thread supply is used up and therefore there is no gimp thread tension connection between the stitch area and the gimp thread clamping lever 25, this returns from the gimp thread pulling position to the neutral position, so that the switching unit 36 of the monitoring sensor 30 during the eye buttonhole sewing program triggers.
  • the switching unit 36 then outputs via the signal line 39 to the control device 38, the signal "error during the Augenknopfloch-sewing".
  • the controller 38 then also interrupts the sewing program and outputs a corresponding error message on the display 47, so that the operator can decide again whether the sewing should continue or be canceled.
  • the monitor sensor 30 may also be configured such that the switching unit 36 will trip when the gimp threading clamp lever 25 is in the neutral position in a pivoted position of the sewing that it occupies during sewing the eye buttonhole seam 20. If the gimp thread has not been or will not be tightened in this pivot position and the switching unit 36 of the monitoring sensor 30 triggers during the sewing program, the control device 38 can interrupt the sewing process again and output a corresponding error message on the display 47, so that the operator can decide whether the sewing continue or abort.
  • the monitoring sensor 30 may be implemented "Pivoting sewing" together with the gimp thread clamping lever 25 may be mounted on a pivotable sewing machine carrier so that triggering of a switching unit 36 of the monitoring sensor 30 in each pivot position of the sewing is possible.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sewing Machines And Sewing (AREA)
EP12157164.0A 2011-03-23 2012-02-27 Augenknopfloch-Nähmaschine sowie Verfahren zum Nähen einer einen Gimpenfaden aufweisenden Augenknopfloch-Naht Active EP2503041B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011005936A DE102011005936A1 (de) 2011-03-23 2011-03-23 Augenknopfloch-Nähmaschine sowie Verfahren zum Nähen einer einem Gimpfaden aufweisenden Augenknopfloch-Naht

Publications (2)

Publication Number Publication Date
EP2503041A1 EP2503041A1 (de) 2012-09-26
EP2503041B1 true EP2503041B1 (de) 2013-10-09

Family

ID=45771701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12157164.0A Active EP2503041B1 (de) 2011-03-23 2012-02-27 Augenknopfloch-Nähmaschine sowie Verfahren zum Nähen einer einen Gimpenfaden aufweisenden Augenknopfloch-Naht

Country Status (6)

Country Link
EP (1) EP2503041B1 (zh)
JP (1) JP3175645U (zh)
KR (1) KR20120109323A (zh)
CN (1) CN102691177B (zh)
DE (1) DE102011005936A1 (zh)
TW (1) TWI491775B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140042993A (ko) 2012-09-28 2014-04-08 한국전자통신연구원 우편물 구분 시스템

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1970349U (de) * 1964-08-26 1967-10-12 Duerkoppwerke Gimpenzufuehrungsvorrichtung an knopflochnaeh- und -schneidautomaten.
JPS60182998A (ja) * 1984-02-29 1985-09-18 ジューキ株式会社 ミシンの制御装置
JP2649809B2 (ja) * 1987-10-23 1997-09-03 蛇の目ミシン工業株式会社 コンピュータミシンにおけるボタンホール縫装置
DE19807771C1 (de) 1998-02-24 1999-04-15 Duerkopp Adler Ag Augenknopfloch-Nähmaschine
DE19916660C1 (de) * 1999-04-14 2000-06-21 Duerkopp Adler Ag Knopfloch-Nähmaschine
DE10216808C2 (de) 2001-12-21 2003-11-13 Duerkopp Adler Ag CNC-gesteuerte Knopfloch-Nähmaschine
DE50206214D1 (de) 2001-12-21 2006-05-18 Duerkopp Adler Ag CNC-gesteuerte Knopfloch-Nähmaschine
DE10225512C1 (de) 2002-06-10 2003-07-17 Duerkopp Adler Ag Knopfloch-Nähmaschine
DE10225511C1 (de) 2002-06-10 2003-06-18 Duerkopp Adler Ag Knopfloch-Nähmaschine
DE10238708A1 (de) * 2002-08-23 2004-03-04 Dürkopp Adler AG Knopfloch-Nähmaschine
DE102004015813B3 (de) * 2004-03-31 2005-05-19 Dürkopp Adler AG Augen-Knopfloch-Nähmaschine
DE102005021768A1 (de) 2005-05-11 2006-11-16 Dürkopp Adler AG Knopfloch-Nähmaschine
JP2007252740A (ja) * 2006-03-24 2007-10-04 Brother Ind Ltd 穴かがりミシン

Also Published As

Publication number Publication date
JP3175645U (ja) 2012-05-24
DE102011005936A1 (de) 2012-09-27
CN102691177B (zh) 2015-08-05
KR20120109323A (ko) 2012-10-08
EP2503041A1 (de) 2012-09-26
TWI491775B (zh) 2015-07-11
CN102691177A (zh) 2012-09-26
DE102011005936A8 (de) 2013-01-10
TW201245529A (en) 2012-11-16

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