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EP3365485B1 - Nähanlage - Google Patents

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Publication number
EP3365485B1
EP3365485B1 EP16782234.5A EP16782234A EP3365485B1 EP 3365485 B1 EP3365485 B1 EP 3365485B1 EP 16782234 A EP16782234 A EP 16782234A EP 3365485 B1 EP3365485 B1 EP 3365485B1
Authority
EP
European Patent Office
Prior art keywords
needle
gripper
sewing
bar
tongue
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.)
Active
Application number
EP16782234.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3365485C0 (de
EP3365485A1 (de
Inventor
Harald Kallenbach
Robert Keilmann
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.)
Pfaff Industriesysteme und Maschinen GmbH
Original Assignee
Pfaff Industriesysteme und Maschinen 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 Pfaff Industriesysteme und Maschinen GmbH filed Critical Pfaff Industriesysteme und Maschinen GmbH
Publication of EP3365485A1 publication Critical patent/EP3365485A1/de
Application granted granted Critical
Publication of EP3365485C0 publication Critical patent/EP3365485C0/de
Publication of EP3365485B1 publication Critical patent/EP3365485B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/30—Driving-gear for loop takers
    • 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
    • D05B29/00—Pressers; Presser feet
    • D05B29/12—Presser-foot attachment
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B55/00—Needle holders; Needle bars
    • D05B55/14—Needle-bar drives
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/30—Details

Definitions

  • the invention relates to a sewing system for sewing seams that lie multidimensionally in space.
  • the EP 2 653 599 A1 shows a sewing machine with a hook drive to reduce mechanical stress.
  • the EP 2 192 220 A1 shows a buttonhole machine for bordering buttonholes.
  • the DE 10 2004 027 578 A1 shows a sewing or embroidery machine with a gripper mechanism that enables a gripper to be moved from a working position to a bobbin case removal position.
  • the DE 36 25 881 A1 shows an automatic sewing machine with a sewing head with a rotating housing.
  • the sewing machine is able to create seams two-dimensionally in one plane thanks to a rotatably mounted rotating housing and a rotatably mounted hook bearing.
  • the EP 0 520 076 A1 shows a robot for a sewing factory.
  • the sewing head can then be designed with a freely accessible stitch formation area, whereby other components of the sewing system that may be disruptive can be pivoted out of a seam area due to the pivotable or rotatable design of the upper part of the needle bar and the lower part of the gripper. Even topographically demanding sewing tasks can be solved in this way.
  • the sewing system can be used next to one
  • the sewing machine having the sewing head also has a robot for multi-dimensional positioning of the sewing machine in space.
  • a toothed belt drive can be used to pivot the upper part of the needle bar and/or the lower part of the hook in the sewing head.
  • the swivel drive for swiveling the upper part of the needle bar and the lower part of the hook in the sewing head can be designed independently of the sewing drive for driving the stitch forming tools.
  • the sewing machine can be a 2-needle sewing machine. It can be a chain stitch sewing machine, in particular a double chain stitch sewing machine.
  • a sewing machine in the sewing system can be a column sewing machine. The seams to be created cannot lie three-dimensionally in space.
  • Drive components for driving the up and down movement of the needle bar can be designed as components that do not rotate with the upper part of the needle bar.
  • These motor components can be arranged fixed to the housing relative to the upper part of the sewing head and/or the lower part of the sewing head.
  • the needle bar upper part is in operative connection with a motor component for driving the up and down movement of the needle bar via at least one tongue/groove connection with a ring member having a groove or a tongue.
  • a ring axis of symmetry of the ring link coincides with the needle bar longitudinal axis or is parallel to it.
  • Such at least one tongue and groove connection with a ring member enables a reliable coupling of the motor component that is not pivoted to the pivotable or rotatable components, i.e. to the needle bar upper part.
  • a rotatability of the needle bar upper part and the gripper lower part according to claim 2 enables particularly flexible use of the sewing system.
  • the upper part of the needle bar and the lower part of the hook can be freely mounted in the sewing head, i.e. rotatable by more than 360° in the sewing head.
  • Tongue and groove connections with a ring member according to one of claims 2 to 4 enable a reliable coupling of the motor components that are not pivoted to the pivotable or rotatable components, i.e. to the upper needle bar part and the lower gripper part.
  • At least one eccentric according to claim 5 enables the respective drive movement to be reliably generated.
  • the drive of the stroke displacement movement of the presser foot on the one hand and a transport movement of the needle bar on the other hand can be derived from one and the same drive shaft, in particular via respective eccentrics.
  • a sliding shaft according to claim 6 enables the gripper movement to be driven safely.
  • the sliding axis of the sliding shaft can coincide with the pivot axis of the gripper lower part.
  • a gripper drive according to claim 7 ensures that the at least one gripper follows in particular a needle transport movement of the associated needle. If one of the movement components is generated with the help of a sliding shaft according to claim 6, two sliding shafts can be used to drive the gripper along the two movement components are used. One of the sliding shafts can be designed as a hollow shaft in which the other of the two sliding shafts runs.
  • a sewing system 1 is used to sew multi-dimensional and in particular seams that are not exactly three-dimensional in space.
  • An example of an application for the sewing system 1 is the attachment of decorative seam applications in the interior of vehicles, for example on instrument panels, door side panels or armrests.
  • the sewing system 1 includes one in the Fig. 1 Sewing machine 2 shown in detail, which is carried by an arm 3 of a robot 4, which is only shown schematically, with which the sewing machine 2 can be oriented as desired in five or six degrees of freedom in space.
  • a Cartesian xyz coordinate system is indicated in the figures.
  • the y-direction is in the Fig. 1 to the right and the z direction is in the Fig. 1 up.
  • the sewing machine 2 has a housing 5 with a C-shaped basic structure with an upper housing part 6, a lower housing part 7 and a stand 8 connecting these two parts to form a C shape.
  • the upper housing part 6 and the lower housing part 7 run along the y-direction.
  • the stand 8 runs along the z-direction.
  • the sewing machine 2 has two sewing needles 9, 10 as stitch forming components (cf. Fig. 2 ), which is supported by a common needle bar 11 (cf. Fig. 3 ) can be worn.
  • the needle bar 11 is mounted in a needle bar upper part 12 along its longitudinal axis 13, driven up and down.
  • the needle bar upper part 12 is in turn mounted in a sewing head upper part 14 so that it can be driven and pivoted about the needle bar longitudinal axis 13, namely rotatable through 360 °.
  • the needle bar longitudinal axis 13 runs parallel to the z-axis.
  • the sewing head upper part 14 forms an end section of the upper housing part 6.
  • the lower gripper part 17 forms a column of the sewing machine 2.
  • the lower gripper part 17 is in turn pivotally mounted about the needle bar longitudinal axis 13 synchronously with the upper needle bar part 12 in a lower sewing head part 18.
  • the sewing head lower part 18 represents an end section of the lower housing part 7.
  • the two sewing needles 9, 10 are driven up and down along the needle bar longitudinal axis 13 and also oscillating in the +/-x direction for needle transport.
  • the grippers 15, 16 pivot approximately parallel to the xy plane lying oval movement path driven.
  • An x component of this oval of movement of the grippers 15, 16 is larger than a y component.
  • the sewing drive motor 19 drives a sewing drive lower shaft 22 via an angular gear 20 mounted underneath and a toothed belt 21, which runs parallel to the y-axis in the lower housing part 7 to the lower sewing head part 18.
  • Two eccentrics 23, 24 are driven via the lower shaft 22, which are accommodated in the sewing head lower part 18 and are in drive connection with one another via a toothed belt connection for synchronous drive.
  • the eccentric 23 On the output side, the eccentric 23 is connected to a sliding inner shaft 25, which runs parallel to the z-axis through the sewing head lower part 18 to an articulated connection 26 (cf. Fig. 4 to 7 ) runs, via which the grippers 15, 16 are connected to the rotatable gripper lower part 17.
  • An operative connection between the eccentric 23 and the sliding inner shaft 25 takes place via a ring driver 27.
  • a sliding lever 29 is fixed to the sliding inner shaft 25.
  • a pivoting lever assembly 30 which produces a z-oscillating movement (cf. Double arrow 31 in the Fig. 7 ) of the sliding lever 29 into a torsional oscillating movement (cf. double arrow 32 in the Fig. 7 ) about a main gripper pivot axis 33 parallel to the y-axis.
  • a gripper carrier 34 on which the two grippers 15, 16 are mounted, is connected in a rotationally fixed manner to the pivot lever assembly 30.
  • the second eccentric 24 in the sewing head lower part 18 is connected to a sliding outer shaft 35 via a corresponding ring driver 27 and a sliding eyelet 28.
  • the second eccentric 24 transmits the rotational movement of the lower shaft 22 into a z-oscillating movement of the sliding outer shaft 35.
  • the sliding outer shaft 35 surrounds the sliding inner shaft 25 and is rotatably mounted with it in the sewing head lower part 18.
  • a sliding lever 36 is fixed to the sliding outer shaft 35, to which a pivoting lever 37 is articulated.
  • the latter is articulated on a base body 38 of the joint connection 26 which is firmly connected to the gripper carrier 34.
  • the pivoting lever 37 transmits a z-oscillating movement (see double arrow 39 in the Fig. 7 ) of the sliding lever 36 in a rotary-oscillating movement (cf. double arrow 40 in the Fig. 7 ) of the base body 38 about a gripper secondary pivot axis 41.
  • a further toothed belt 42 transmits a rotational movement of the lower shaft 22 into a rotational movement of an upper shaft 43, which runs parallel to the y-direction in the upper housing part 6.
  • the harmonic shaft 43 drives a crank 44, which is connected via a ring driver 45 to the needle bar 11 to drive its up and down movement along the z-axis.
  • the ring driver 45 forms a tongue and groove connection with a ring member 46 that is non-rotatably connected to the needle bar 11 and a fork component that interacts with it and is firmly connected to the crank 44.
  • a ring axis of symmetry of the ring member 46 coincides with the needle bar longitudinal axis 13.
  • the rotational movement of the upper shaft 43 is transmitted via a clutch into a rotational movement of a needle transport/presser foot drive shaft 47, which is in the Fig. 1 and 2 is arranged in front of the harmonic 43 and covers it in sections.
  • the needle transport/presser foot drive shaft 47 drives a needle transport eccentric 48 and a presser foot eccentric 49.
  • swinging sliding lever 51 of the needle transport eccentric 48 is connected to a ring member 54 via a fork-shaped articulated lever 52 and a tongue and groove connection 53.
  • a ring axis of symmetry of the ring member 54 coincides with the needle bar longitudinal axis 13.
  • Two opposing springs of the fork of the articulated lever 52 engage in a circumferential groove of the ring member 54.
  • the ring member 54 is connected to the needle bar upper part 12 in a rotationally fixed manner.
  • the ring member 54 is axially corresponding the drive via the articulated lever 52 to a base body of the needle bar upper part 12 movable (see double arrow 55 in Fig. 3 ).
  • a needle transport lever 57 is attached to the ring member 54 via an articulated connection 56 (cf. Fig. 3 ) is articulated, which is connected to the base body of the needle bar upper part 12 via a further joint connection 58.
  • the needle transport lever 57 is connected via a bolt 59 to a guide 60 of the needle bar 11, which at the same time also represents a guide for a presser foot bar 61 of a presser foot 62.
  • the oscillating movement 55 of the ring member 54 thus results in a needle transport oscillating movement (cf. double arrow 63 in the Fig. 3 ) of the sewing needles 9, 10 together with the presser foot 62 in the xz plane.
  • the presser foot eccentric 49 acts via a further sliding lever 64, which swings in the z direction (see double arrow 65 in the Fig. 2 ) with a further fork-shaped articulated lever 66, which also interacts with a ring member 67 of the needle bar upper part 12 via a tongue and groove connection 53.
  • a ring axis of symmetry of the ring member 67 coincides with the needle bar longitudinal axis 13. This causes a z-oscillating movement of the ring member 67 (cf. double arrow 68 in Fig. 3 ).
  • the ring member 67 is in a shear connection with the presser foot bar 61. The oscillating movement 68 of the ring member 67 is thus transferred into a corresponding lifting movement of the presser foot 62.
  • a pivoting or rotary drive takes place on the one hand of the upper needle bar part 12 and on the other hand of the lower gripper part 17 about the needle bar longitudinal axis 13.
  • This drive is accomplished by a rotary motor 69, which drives a rotary drive shaft 71 via a toothed belt 70, which runs parallel to the z-axis in the stand 8 between the upper housing part 6 and the lower housing part 7.
  • a first, upper gear 72 is connected to the rotary drive shaft 71 in a rotationally fixed manner at the level of the upper housing part 6 and a second, lower gear 73 is connected at the level of the lower housing part 7.
  • the upper gear 72 drives a gear 75 which is non-rotatably connected to the base body of the needle bar upper part 12 via a toothed belt 74 running in the upper housing part 6.
  • the lower gear 73 drives a gear 77 which is non-rotatably connected to a base body of the gripper lower part 17 via a toothed belt 76 running in the lower housing part 7.
  • the sewing machine 2 is controlled via a central control 78, which is located in the Fig. 1 is shown schematically, and is in signal connection with the drive components of the sewing system 1 in a manner not shown, brought into position by appropriate control of the robot 4.
  • the stitch forming tools 9, 10, 15 and 16 then follow the specified seam path.
  • the upper needle bar part 12 and, synchronously, the lower gripper part 17 are pivoted synchronously with one another about the needle bar longitudinal axis 13 relative to the housing 5. In this way, even hard-to-reach seams can be reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP16782234.5A 2015-10-19 2016-10-18 Nähanlage Active EP3365485B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015220332.8A DE102015220332A1 (de) 2015-10-19 2015-10-19 Nähanlage
PCT/EP2016/074922 WO2017067900A1 (de) 2015-10-19 2016-10-18 Nähanlage

Publications (3)

Publication Number Publication Date
EP3365485A1 EP3365485A1 (de) 2018-08-29
EP3365485C0 EP3365485C0 (de) 2024-01-10
EP3365485B1 true EP3365485B1 (de) 2024-01-10

Family

ID=57144970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16782234.5A Active EP3365485B1 (de) 2015-10-19 2016-10-18 Nähanlage

Country Status (8)

Country Link
US (1) US10851483B2 (es)
EP (1) EP3365485B1 (es)
JP (1) JP6905980B2 (es)
CA (1) CA3002269C (es)
DE (1) DE102015220332A1 (es)
ES (1) ES2971047T3 (es)
MX (1) MX386004B (es)
WO (1) WO2017067900A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018205835A1 (de) * 2018-04-17 2019-10-17 Pfaff Industriesysteme Und Maschinen Gmbh Nähmaschine
JP7499764B2 (ja) * 2018-11-21 2024-06-14 インティヴァ プロダクツ， エルエルシー ミシン
DE102022203472A1 (de) * 2022-04-07 2023-10-12 Dürkopp Adler GmbH Nähmaschine
CN119677907A (zh) * 2022-07-01 2025-03-21 恩坦华产品有限公司 自动装饰缝线的方法和设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625881A1 (de) * 1986-07-31 1988-02-04 Kochs Adler Ag Naehautomat mit einem naehkopf mit drehgehaeuse
EP0520076A1 (en) * 1991-01-11 1992-12-30 Kabushiki Kaisha Yaskawa Denki Robot for sewing work

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596619A (en) * 1966-04-12 1971-08-03 Ragnar William Winberg A lock stitch sewing machine having crescent-shaped bobbin
JPS52132244U (es) * 1976-03-31 1977-10-07
JPS5891379U (ja) * 1981-12-15 1983-06-21 株式会社ジユ−キ 球面対偶を備えた連結部材
DE3811897A1 (de) * 1988-04-09 1989-10-26 Pfaff Ind Masch Naehmaschine mit schwenkbarer stichbildeeinheit
JPH0260687A (ja) * 1988-08-26 1990-03-01 Agency Of Ind Science & Technol ミシン
JP2762698B2 (ja) * 1990-05-22 1998-06-04 ブラザー工業株式会社 鳩目穴かがりミシン
JP3025356U (ja) * 1995-11-30 1996-06-11 有限会社クボタ特殊ミシン商会 湾曲厚物素材用ミシン
JP2000308784A (ja) * 1999-04-28 2000-11-07 Juki Corp サイクルミシン
US7789028B2 (en) * 2002-03-06 2010-09-07 L&P Property Management Company Chain-stitch quilting with separate needle and looper drive
WO2004113604A1 (de) * 2003-06-26 2004-12-29 Pfaff Industrie Maschinen Ag Näheinheit zum nähen in beliebiger vorschubrichtung
CH696339A5 (de) * 2003-08-08 2007-04-30 Gegauf Fritz Ag Näh- oder Stickmaschine.
JP5241449B2 (ja) * 2008-11-27 2013-07-17 Ｊｕｋｉ株式会社 鳩目ボタン穴かがりミシン
DE102011052521B4 (de) * 2011-08-09 2023-02-23 Chee Siang Industrial Co., Ltd. Säulennähmaschine
JP5859248B2 (ja) * 2011-08-31 2016-02-10 Juki株式会社 二本針ミシン
DE102012206208A1 (de) * 2012-04-16 2013-10-17 Dürkopp Adler AG Nähmaschine
DE102012207257B4 (de) * 2012-05-02 2014-01-16 Minerva Boskovice A.S. Nähmaschine
US9255352B2 (en) * 2013-07-31 2016-02-09 Inteva Products, Llc Apparatus for stitching vehicle interior components
JP6552247B2 (ja) * 2015-04-01 2019-07-31 蛇の目ミシン工業株式会社 ミシン

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625881A1 (de) * 1986-07-31 1988-02-04 Kochs Adler Ag Naehautomat mit einem naehkopf mit drehgehaeuse
EP0520076A1 (en) * 1991-01-11 1992-12-30 Kabushiki Kaisha Yaskawa Denki Robot for sewing work

Also Published As

Publication number Publication date
EP3365485C0 (de) 2024-01-10
MX386004B (es) 2025-03-18
CA3002269A1 (en) 2017-04-27
US20180313012A1 (en) 2018-11-01
JP2018531119A (ja) 2018-10-25
WO2017067900A1 (de) 2017-04-27
JP6905980B2 (ja) 2021-07-21
US10851483B2 (en) 2020-12-01
EP3365485A1 (de) 2018-08-29
CA3002269C (en) 2023-09-05
MX2018004758A (es) 2019-05-16
DE102015220332A1 (de) 2017-04-20
ES2971047T3 (es) 2024-06-03

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