EP0569519A1 - Device for producing seams in three-dimensional objects. - Google Patents
Device for producing seams in three-dimensional objects.Info
- Publication number
- EP0569519A1 EP0569519A1 EP92905889A EP92905889A EP0569519A1 EP 0569519 A1 EP0569519 A1 EP 0569519A1 EP 92905889 A EP92905889 A EP 92905889A EP 92905889 A EP92905889 A EP 92905889A EP 0569519 A1 EP0569519 A1 EP 0569519A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sewing machine
- needle
- fabric
- manipulator
- sewing
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B23/00—Sewing apparatus or machines not otherwise provided for
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/02—Pneumatic or hydraulic devices
- D05D2207/04—Suction or blowing devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/05—Magnetic devices
- D05D2207/06—Permanent magnets
Definitions
- the invention relates to a device for producing seams on three-dimensional objects made of fabrics such as textile fabrics, leather, plastic or the like. Such devices are used for the manufacture of clothing, upholstery for seating and automobiles and for shoe manufacture.
- three-dimensional objects such as covers are made of fabric by sewing pre-made two-dimensional blanks lying flat on top of one another with a sewing machine.
- the two blanks are sewn together at a precisely defined distance from the cut edges.
- the blanks have previously been provided with markings which must coincide with one another when sewing, it also being necessary to shift the blanks relative to one another during sewing.
- the Assembling the blanks with a sewing machine is very time consuming and requires a high degree of routine for the operator who has to carry out the blanks and operate the sewing machine.
- the performance possibilities of the sewing machine are not used by the relatively slow manual control.
- the fabrics are fed by the sewing machine intermittently between the needle piercing movements.
- DE 33 38 405 A1 discloses a device for producing three-dimensional articles with seams, in which a sewing machine is attached to a manipulator in the form of a robot arm. This sewing machine is moved by the manipulator in such a way that it is guided along the intended seam line of the two blanks to be sewn. A bobbin reaches under the blanks to be sewn and a hold-down presses against the top blank. The lower blank is supported by a bristle bed through which the bobbin moves.
- a similar sewing device is known from EP 0 344 400 AI.
- a sewing machine is attached to the manipulator arm of a robot, the details of which are not described, however.
- the invention has for its object a Vorrich- to create seams on three-dimensional objects, which enables the production of flawless and distortion-free seams at high sewing speed.
- the sewing machine has a sewing head, the movement of which is controlled in such a way that it stands still during the puncturing of the needle into the fabric relative to the holding device carrying the workpiece.
- These standstill movements can be generated in different ways.
- One possibility is to move the manipulator arm in coordination with the needle movements of the sewing machine along the intended seam line in such a way that it stands still during the piercing movements and pull-out movements of the needle and only moves the sewing machine when the needle is out of the workpiece ⁇ is drawn.
- the sewing head is guided in a linearly movable manner on the manipulator arm, in such a way that, when the needle is in the fabric, it is moved back along the intended seam line relative to the manipulator arm at approximately the same speed and then when the needle is pulled out of the fabric, making up for the lost distance.
- the manipulator arm can then be moved at a constant speed so that the tool center point of the manipulator moves at a constant speed along the seam line, but the sewing machine alternately falls back relative to the tool center point and then makes up for the loss of travel.
- a guide is attached to the manipulator arm, which is always parallel to the intended seam line is aligned and along which the entire sewing machine is guided linearly.
- the manipulator arm can be moved at a constant speed, while the reciprocating compensatory movements are carried out exclusively by the sewing head relative to the sewing machine.
- a continuous movement of the manipulator rms has the advantage that the masses which are to be moved intermittently as a function of the stitch movements of the needle can be kept relatively small and that no mutual coordination between the manipulator movements and the needle movements of the needle is required.
- the feed for sewing the seam takes place exclusively through the manipulator arm while the workpiece itself is stationary.
- the holding device carrying the workpiece does not necessarily have to be absolutely fixed, but the holding device can also be attached such that it can be rotated, for example. It is important that the sewing machine itself is not a feed device and that the fabric is not pushed between two stitches.
- the needle plate and the hold-down device are expediently moved apart when the needle is pulled out of the fabric.
- the sewing head (or the entire sewing machine) can be moved a stitch length relative to the workpiece.
- the fabric is then clamped between the throat plate and the holding-down device in order to obtain an exact position of the workpiece and an exact mutual assignment of the blanks to be sewn for the next needle stitch.
- 1 is a holding device with blanks fixed thereon to be sewn together
- FIG. 6 shows a side view of another embodiment, in which the sewing head can be moved linearly relative to the sewing machine.
- FIG. 1 shows a holding device 10 which carries individual blanks which are placed against one another to form a three-dimensional hollow structure made of sheet material.
- the workpiece to be produced, the blanks of which are fastened to the holding device 10, in the present case consists of the cover for an armrest of a motor vehicle.
- the holding device 10 has a base body 11, around which a blank 12 in the form of a band-shaped strip is placed.
- This blank 12 is fixed to the base body 11 by holding plates 13 which are pressed against the blank from the outside.
- the blank 12 surrounds the base body 11.
- the side of the ring formed by the blank 12 is to be closed by a blank 14 in the form of a side part to be sewn on.
- the blank 14 is placed against the side surface of the base body 11 and held there by a holding plate 15 which is pressed against the base body.
- the holding plates 13 and 15 can be held on the base body 11, for example, with magnets or by suction.
- the blanks 12 and 14 are so large that they overlap in the circumferential edges and form edge strips 16 there (see also FIG. 3).
- the seam 17 is produced at the root of these edge strips 16.
- Fig. 2 shows the holding device 10, the one (Not shown) holder is fixedly attached, and a sewing machine 18 which is attached to a manipulator arm 19.
- the manipulator arm 19 is part of the manipulator 20, which is an industrial robot with a large number of movement axes, for example with six or eight movement axes.
- the manipulator 20 is numerically controlled in such a way that the tool center point, ie the point of action of a tool fixedly attached to the manipulator arm 19, can be moved along a predetermined movement path. Programming the manipulator
- the manipulator arm 19 can be done in such a way that the manipulator arm 19 is manually guided with the attached tool along the intended processing line in a learning phase.
- the path values recorded in this process are stored and then the manipulator 20 is controlled in such a way that the manipulator arm 19 controls the same movements that were carried out in the learning phase.
- the tool attached to the manipulator arm consists of the sewing machine 18.
- a linear guide 21 is attached to the manipulator arm 19, along which a carriage 22, which carries the sewing machine 18, can be moved.
- the slide 22 is driven by a drive (not shown).
- This drive can be the drive motor 23 of the sewing machine, it being possible for the carriage to move by means of a cam disk moved by this drive motor 23.
- the drive motor 23 of the sewing machine 18 drives a drive mechanism via a belt drive 24.
- shaft 25 which drives the components of the sewing machine in a known manner.
- the sewing machine has a sewing head 26, which is arranged here in a fixed association with the sewing machine housing 18a.
- the sewing head 26 includes the needle lever 27, which is attached to a reciprocating shaft 28 and carries the curved needle 29, a needle plate 30, which forms an abutment for the double-layered edge strip 16 and has a recess for the passage of the needle 29 , a hold-down device 31 opposite the throat plate 30 and a loop catcher 32 which is arranged behind the throat plate 30 and contains the lower thread advance.
- the needle 29 is bent around the axis of the shaft 28.
- the edge strip 16 is firmly clamped between the needle plate 30 and the hold-down device 31 during the stitching of the needle 29.
- the needle plate 30 and the hold-down device 31 diverge in order to release the edge strip.
- the opening and closing movement of the hold-down device 31 is controlled by the needle lever 27, which takes a stop 33 of the hold-down device 31 with it when the needle is pulled out of the fabric, so that the hold-down device acts against the action of the spring 34, which directs it in direction device on the needle plate 30 pulls, is lifted from the edge strip 16.
- the needle plate 30 is also removed from the edge strip when the needle is pulled out. This is done in that an arm 35 carrying the needle plate 30 is moved by a cam control 36 synchronized with the needle lever movement.
- a Sensor 37 is provided which detects the presence of the edge strip 16 and deactivates the sewing machine if an edge strip is not recognized.
- This sensor can be a light barrier, for example, in which the light transmitter is attached to the throat plate 30 and the receiver is attached to the hold-down device 31.
- the thread 38 coming from a thread spool runs over a roller 39, which is driven by a stepper motor, and further over a deflection pin 40 to the thread generator 41, which can be moved up and down in the rhythm of the needle movement From there, the thread 38 leads to a thread brake 42 provided on the needle lever 27 and further to the needle hole provided near the tip of the needle 29.
- the stepping motor driving the roller 39 is activated in each cycle after the upward movement of the thread feeder 41 has ended in order to provide the thread quantity which corresponds to the predetermined stitch length.
- a pressure roller presses the thread firmly against the roller 39 driven by the stepping motor, such that the thread is driven by the roller 39 without slippage.
- the roller 39 is stationary, it is held by the stepping motor, so that it is not possible to pull the thread from the thread supply due to tensile forces acting behind the roller 39.
- the carriage 22 is in its end position lying forward in the direction of movement of the manipulator arm 19. In this position, the point at which the needle 29 punctures the fabric represents the tool center point of the manipulator.
- the manipulator arm 19 is moved by the manipulator 20 in such a way that the tool center point bends along the intended seam line.
- a ntriebsmotor 23 of the sewing machine 18 - is in Ab ⁇ dependence on the movement of the manipulator is controlled such that the stitch length stays constant (the path from groove to groove) independently of the feed rate.
- the speed component derived from the manipulators of the manipulator in the seam direction is compared with the speed of the sewing machine motor.
- the needle plate 30 and the hold-down device 31 are moved towards one another.
- the slide 22 is moved along the guide 21 against the feed movement carried out by the manipulator arm 19 (along the intended seam line), and at a speed which corresponds to the feed speed.
- the sewing machine 18 remains stationary during the insertion of the needle 29 into the fabric relative to the holding device 10 or the workpiece, while the manipulator arm 19 is continuously moved on.
- the prerequisite is that the manipulator arm 19 is aligned parallel to the intended seam direction.
- FIG. 5 shows the upper representation of the stitch movements s of the needle 29, the amplitude being greater the further the needle tip has been advanced through the needle plate 30 from its retracted position.
- the lower illustration shows the absolute speed v of the sewing machine 18, where v R is the constant feed speed of the manipulator arm 19.
- v R is the constant feed speed of the manipulator arm 19.
- the sewing machine 18 is in its front end position with respect to the manipulator arm 19 and it moves at the feed speed v.
- the sewing machine 18 moves along the guide 21 in the opposite direction to the feed speed, so that the absolute speed becomes zero.
- the sewing machine 18 is moved again along the guide 21 into the front end position, this displacement movement being superimposed on the feed speed v_ of the manipulator arm 19.
- the carriage 22 remains in the front end position until the next stitch is carried out.
- the carriage 22 is driven with respect to the guide 21 by the sewing machine drive and in synchronization with the needle movements.
- the sewing machine 48 is firmly and rigidly connected to the manipulator arm (not shown) and the components of the sewing head 26 can be displaced counter to the intended sewing direction indicated by the arrow 49.
- the components of the sewing machine 48 are provided with the same reference numerals insofar as they correspond to the components of the previously described sewing machine 18. The following description is limited to the differences between the sewing machine 48 and the sewing machine 18.
- the needle lever 27 is not rigidly connected to the shaft 28, but can be displaced along this shaft.
- the arm holding the hold-down device 31 is connected to the shaft 28 in a rotationally fixed manner, but is displaceable along this shaft.
- the needle lever 27 and the hold-down device 31 are displaced using a fork 50 which is controlled by a cam disk and which engages in an annular groove in a sleeve 51 seated on the shaft 28 and is controlled synchronously with the needle drive
- the throat plate 30 and the loop catcher 32 can be moved in the direction of the arrow 49 and in the opposite direction.
- the seam 17 is sewn on the workpiece in such a way that the double-layered edge strip 16 protrudes outwards from the cuts. Following the production of the seam, the workpiece is turned over, with the outer surfaces during production coming to lie inwards.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4102840A DE4102840C1 (en) | 1991-01-31 | 1991-01-31 | |
DE4102840 | 1991-01-31 | ||
PCT/EP1991/002508 WO1992013986A1 (en) | 1991-01-31 | 1991-12-24 | Device for producing seams in three-dimensional objects |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0569519A1 true EP0569519A1 (en) | 1993-11-18 |
EP0569519B1 EP0569519B1 (en) | 1996-03-27 |
Family
ID=6424069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92905889A Expired - Lifetime EP0569519B1 (en) | 1991-01-31 | 1991-12-24 | Device for producing seams in three-dimensional objects |
Country Status (7)
Country | Link |
---|---|
US (1) | US5381743A (en) |
EP (1) | EP0569519B1 (en) |
JP (1) | JP2646041B2 (en) |
AT (1) | ATE136069T1 (en) |
DE (1) | DE4102840C1 (en) |
ES (1) | ES2085006T3 (en) |
WO (1) | WO1992013986A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2816294C1 (en) * | 2020-02-21 | 2024-03-28 | Пфафф Индустрисистеме Унд Машинен Гмбх | Sewing machine |
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JPH06126679A (en) * | 1991-01-11 | 1994-05-10 | Yaskawa Electric Corp | Sewing operation robot |
DE4225008C1 (en) * | 1991-08-14 | 1993-03-18 | Moll, Philipp, 5100 Aachen, De | |
DE4419700C2 (en) * | 1994-06-04 | 1997-07-17 | Moll Automatische Naehsysteme | Device for receiving workpieces for machining operations, in particular for sewing |
DE4424473C1 (en) * | 1994-07-12 | 1995-02-16 | Daimler Benz Ag | Method and apparatus for the joint sewing of laid-together edges of blanks of limp material |
DE4431318C2 (en) * | 1994-09-02 | 1997-05-28 | Ksl Keilmann Sondermaschinenba | Sewing device |
DE19527620A1 (en) * | 1995-07-28 | 1997-01-30 | Berger Johann | Device and method for producing an airbag hollow body |
DE19529084C2 (en) * | 1995-08-08 | 1999-01-14 | Altin Naehtechnik Gmbh | Method and device for forming three-dimensional envelopes |
JPH1058362A (en) * | 1996-08-13 | 1998-03-03 | Fanuc Ltd | Stitch working method by use of industrial robot |
DE19634327A1 (en) * | 1996-08-24 | 1998-02-26 | Moll Automatische Naehsysteme | Seaming device |
IT1290666B1 (en) * | 1997-02-06 | 1998-12-10 | Resta Srl | DEVICE FOR POSITIONING AND CORNER JOINING THE EDGES OF TWO CLOTHES TO SEW IN A SEWING MACHINE, IN PARTICULAR FOR THE |
DE19751011C2 (en) * | 1997-11-18 | 2000-12-07 | Altin Naehtechnik Gmbh | sewing machine |
IT1300004B1 (en) * | 1998-05-05 | 2000-04-04 | Mario Ciucani | METHOD AND EQUIPMENT FOR SEWING THE UPPER TO THE SOLE OF FOOTWEAR. |
US6129031A (en) * | 1999-11-16 | 2000-10-10 | The Boeing Company | Robotic stitching apparatus and end effector therefor |
US6585746B2 (en) * | 2000-04-20 | 2003-07-01 | Philip L. Gildenberg | Hair transplantation method and apparatus |
DE10026242A1 (en) * | 2000-05-26 | 2001-11-29 | Bayerische Motoren Werke Ag | Device for changing the upper thread |
DE10033863C2 (en) * | 2000-07-12 | 2003-11-27 | Eads Deutschland Gmbh | Sewing device with a one-sided sewing head and a receiving element for a slack material |
DE10040807B4 (en) * | 2000-08-21 | 2004-07-15 | Ksl Keilmann Sondermaschinenbau Gmbh | Blind stitch sewing machine |
EP1541735A1 (en) * | 2003-09-17 | 2005-06-15 | Matec S.p.A. | Apparatus and method for making garments starting from a knitted hose |
DE102005053339B3 (en) * | 2005-08-05 | 2006-11-16 | Beckmann Maschinen Gmbh | Producing a corner in a textile hood, e.g. for a mattress cover, involves folding sides at right angles to form a pleat, which is then stitched and the excess fabric cut off |
DE102007019521A1 (en) * | 2007-04-25 | 2008-10-30 | Trw Automotive Safety Systems Gmbh | Assembly to apply a leather steering wheel cover has two opposing needle handling units |
US9340912B2 (en) | 2011-07-08 | 2016-05-17 | Inteva Products, Llc | Method for stitching vehicle interior components and components formed from the method |
US9809176B2 (en) | 2011-07-08 | 2017-11-07 | Inteva Products, Llc | Method for stitching vehicle interior components and components formed from the method |
DE112012002886B4 (en) | 2011-07-08 | 2022-12-29 | Inteva Products Llc. | Vehicle interior component sewing method and vehicle interior trim piece produced by the method |
US8919270B2 (en) | 2011-07-08 | 2014-12-30 | Inteva Products Llc | Apparatus for stitching vehicle interior components |
JP6253139B2 (en) * | 2013-10-03 | 2017-12-27 | スターテクノ株式会社 | Yarn feeding device in stitch material forming device for interior material |
CN104172668B (en) * | 2014-09-12 | 2015-09-30 | 安徽天有轻纺织品有限公司 | Footwear body side-sewing machine |
CN105256471A (en) * | 2015-11-26 | 2016-01-20 | 宁波慈星股份有限公司 | Method for achieving 3D sewing |
US10240271B2 (en) | 2016-03-08 | 2019-03-26 | Toyota Motor Engineering & Manufacturing North America, Inc. | Sewing apparatus |
JP6439004B2 (en) * | 2016-04-28 | 2018-12-19 | 株式会社松屋アールアンドディ | Sewing apparatus and sewing method |
CN106037119A (en) * | 2016-07-25 | 2016-10-26 | 信泰(福建)科技有限公司 | Shoe upper manufacture method and integral woven shoe upper |
JP2018027106A (en) * | 2016-08-15 | 2018-02-22 | Juki株式会社 | Sewing machine and sewing system |
JP6854610B2 (en) * | 2016-09-16 | 2021-04-07 | Juki株式会社 | Sewing system |
CN107237059A (en) * | 2017-07-25 | 2017-10-10 | 宁波慈星股份有限公司 | A kind of sewing track method for correcting error and device sewed based on robot 3D |
US10875189B2 (en) | 2018-02-06 | 2020-12-29 | City University Of Hong Kong | System and method for manipulating deformable objects |
JP7224112B2 (en) * | 2018-05-21 | 2023-02-17 | Juki株式会社 | sewing system |
WO2020026667A1 (en) * | 2018-08-02 | 2020-02-06 | 本田技研工業株式会社 | Sewing device and sewing method |
CN110468508B (en) * | 2019-09-17 | 2021-04-20 | 湖北三江航天红阳机电有限公司 | Solid of revolution aerogel sewing device |
EP4293149A3 (en) * | 2019-11-01 | 2024-03-13 | NIKE Innovate C.V. | Vision-guided stitching systems and logic for fabricating engineered textiles with interstitched superposed wires |
CN110983672B (en) * | 2019-12-18 | 2022-02-22 | 广东智媒云图科技股份有限公司 | Thread embroidering device |
WO2023225851A1 (en) * | 2022-05-24 | 2023-11-30 | Abb Schweiz Ag | Robot and method for sewing an object |
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-
1991
- 1991-01-31 DE DE4102840A patent/DE4102840C1/de not_active Expired - Lifetime
- 1991-12-24 US US08/084,203 patent/US5381743A/en not_active Expired - Fee Related
- 1991-12-24 WO PCT/EP1991/002508 patent/WO1992013986A1/en active IP Right Grant
- 1991-12-24 AT AT92905889T patent/ATE136069T1/en not_active IP Right Cessation
- 1991-12-24 EP EP92905889A patent/EP0569519B1/en not_active Expired - Lifetime
- 1991-12-24 JP JP4505487A patent/JP2646041B2/en not_active Expired - Lifetime
- 1991-12-24 ES ES92905889T patent/ES2085006T3/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9213986A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2816294C1 (en) * | 2020-02-21 | 2024-03-28 | Пфафф Индустрисистеме Унд Машинен Гмбх | Sewing machine |
Also Published As
Publication number | Publication date |
---|---|
US5381743A (en) | 1995-01-17 |
EP0569519B1 (en) | 1996-03-27 |
ATE136069T1 (en) | 1996-04-15 |
WO1992013986A1 (en) | 1992-08-20 |
ES2085006T3 (en) | 1996-05-16 |
JPH06511395A (en) | 1994-12-22 |
JP2646041B2 (en) | 1997-08-25 |
DE4102840C1 (en) | 1992-10-15 |
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Legal Events
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17P | Request for examination filed |
Effective date: 19930624 |
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