EP0020850A1 - Dispositif de maintien de l'ouvrage - Google Patents

Dispositif de maintien de l'ouvrage Download PDF

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Publication number
EP0020850A1
EP0020850A1 EP80100847A EP80100847A EP0020850A1 EP 0020850 A1 EP0020850 A1 EP 0020850A1 EP 80100847 A EP80100847 A EP 80100847A EP 80100847 A EP80100847 A EP 80100847A EP 0020850 A1 EP0020850 A1 EP 0020850A1
Authority
EP
European Patent Office
Prior art keywords
holding device
workpiece holding
clamping
terminal
compressed air
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
Application number
EP80100847A
Other languages
German (de)
English (en)
Other versions
EP0020850B1 (fr
Inventor
Horst Fenzl
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.)
Duerkoppwerke GmbH
Original Assignee
Duerkoppwerke 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 Duerkoppwerke GmbH filed Critical Duerkoppwerke GmbH
Publication of EP0020850A1 publication Critical patent/EP0020850A1/fr
Application granted granted Critical
Publication of EP0020850B1 publication Critical patent/EP0020850B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B39/00—Workpiece carriers
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements 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

Definitions

  • the invention relates to a work piece holding device according to the preamble of claim 1.
  • Workpiece holding devices of the type mentioned are intended to enable the at least two workpieces to be sewn to be sewn appropriately, after which the ready-to-use, open clamping device is closed.
  • the special design of the clamping device depends on the shape of the workpieces and on the sewing work to be carried out on them. As long as the workpieces are of substantially regular shape and approximately the same length and contour, a simple, mostly servo-actuated clamping strip, such as is known, for example, from German utility model 1 961 860 is sufficient as the clamping device of the workpiece holding device.
  • German Offenlegungsschrift No. 2 164 862 describes such a work piece holding device which is equipped with a plurality of clamps which can be moved in position and operated together.
  • the prior art also includes a work piece holding device according to German utility model 1 982 797. It describes a work piece holding device in which two work pieces can be inserted one above the other. A special device is provided to insert folds so that an excess width can be incorporated.
  • the invention is therefore based on the technical problem of creating a work piece holding device which is also suitable for work pieces which are difficult to position.
  • the slipping of sections of a work piece that have already been brought into the correct sewing position should be avoided and a quick and safe insertion of the work pieces as well as a fast correction of incorrect insertion should be possible.
  • the work piece holding device is shown in the right half of FIG. 1. It essentially consists of twelve terminal housings 17 (FIG. 3) arranged in a row, the terminals of which, in their entirety, are the upper and lower terminal strips. 10 and 20 of the work piece holding device and which each clamp a work piece 1, 2 (Fig. 4 and 5) after positioning.
  • the work piece holding device is designed to be movable and can be moved toward the sewing machine 3. 10 and 11 show the traction means in the form of a webbing 77 fastened below a terminal housing 17 and driven by known means.
  • the sewing machine 3 is part of a known sewing system for the production of darts.
  • This sewing system is equipped with a feed rail 4 which can be brought from a raised position with the prepared workpieces clamped into a lowered position and then moved along the sewing point of the sewing machine 3 so that the workpieces are sewn together.
  • This sewing unit is equipped with conventional control means for a largely automatic operation and also has a known auxiliary device to facilitate the preparation of the work pieces for sewing darts, namely a needle N barre fifth
  • the work piece holding device according to the invention can of course also interact with any other sewing system for other sewing applications or can also be integrated into such a sewing system.
  • Fig. 3 shows a terminal housing 17 in its details.
  • Each clamp housing 17 has an upper row of 6 clamps 11-16 for clamping a work piece 2 (FIG. 5), and a lower row of 6 clamps 21-26 for a work piece 1 (FIG. 4).
  • the entirety of the upper terminals (11-16) in the 12 terminal housings 17 (FIG. 1) is - as already mentioned - the upper terminal strip 10 and the entirety of the lower terminals 21-26 is called the lower terminal strip 20.
  • the made of elastic material, for. B. spring steel clamps 11-16 and 21-26 have a reinforcing bracket and are pivotally mounted in the housing 17 about an axis 18 and 28 and protrude from the housing 17 so offset that the terminals 21-26 first the work piece 1 (Fig.
  • the interconnected clamps 11-16 are connected by a retaining bolt 136 to the longer piston rod 134 of the piston 132 and the clamps 21-26, which are likewise interconnected, are connected by the retaining bolt 137 to the shorter piston rod 135 of the piston 133.
  • the pistons 132 and 133 with their piston rods 134 and 135 are returned to their starting position by the return springs 139 and 140 suspended at one end in the cover plate 138, and the clamps 11-16 and 21-26 also return to their original positions (Fig. 3) a.
  • the workpieces 1 and 2 can thus be placed one after the other on the front sides of the terminal housings 17 which are broken by the six slots for the passage of the terminals 11-16 and 21-26.
  • the total area of the front sides of all twelve clamp housings 17 forms the stop bar for the workpieces 1 and 2, which together with the clamping device forms the components of the workpiece holding device.
  • FIG. 2 shows the compressed air cylinder 34 with its piston rod 142 in the extended state, the pivot lever 143 firmly connected to the support 39 rests on the stop 144 and the support plate 32 is in its operative position.
  • the swivel lever 143 can rotate counterclockwise and the support plate 32 moves back into its neutral position, which is drawn with broken lines in FIG. 2.
  • the clamping device described can the individual Ar-. Clamp sections 1, 2 - as is especially necessary for parts that are difficult to position - in sections.
  • a longitudinal slide valve 40 (FIG. 6), which is known in principle, will now be described, which acts on the pressure cylinders 30 and 31 (FIGS. 4 and 5) accommodated in each of the twelve terminal housings 17 (FIG. 1) of the clamping device, taking place one after the other causes a knee-operated lever 41 (Fig. 1).
  • Lever 41 is advantageously operated by the operator with his knee so that his hands remain free for the positioning of workpieces 1 and 2.
  • This part of the longitudinal slide valve has twenty-five bushes 49, which are press-fitted into the bore of the cylinder tube 42, each of which is provided with an annular groove for receiving a commercially available O-ring 50.
  • Each bushing 49 also has a radial recess, which can be seen in the bottom right in FIG. 6. Almost all recesses are connected to compressed air connections, which are described in more detail. For the sake of a clear overview, only the first of the structurally identical bushes 49 and the O-ring 5Q of the same are provided with a reference symbol.
  • the valve spool 48 is a cylinder, the height of which is twice the width of the bushing 49 and the diameter of which fits into the inner diameter of the O-rings 50, so that the O-rings 50 bear tightly against the circumference of the valve spool 48 when the same moves on its path Row of bushings 49 with the O-rings 50 happens.
  • the valve slide 48 releases along its path - as is customary with valves of this type - a series of compressed air inflow pipes through which all compressed air cylinders 30 and 31 in the terminal housings 17 can be charged. Only the connection brackets 51-71, preferably soldered to the cylinder tube 42, are shown, which are connected to known compressed air lines, which are not shown for reasons of clarity.
  • the connecting pieces 52-61 are arranged offset from one another for reasons of space.
  • the upper terminal block 10 with the terminals 21-26 in the terminal housings 17 can be pressurized with compressed air by now delivering compressed air to the connecting pieces 62-71.
  • the operator can thus control the longitudinal slide valve 40 sensitively by operating the lever 41 (FIG. 1) and the compressed air cylinders 30 and 31 of the terminal housing 17 with their terminals 11-16 and 21-26 in succession during the on. placing the workpieces 1 and 2 in sections with compressed air, an insertion error being easily and quickly corrected by withdrawing the lever 41 and releasing the clamping.
  • the stop bar thereof can be adapted to the contour of the work pieces.
  • the individual a total of twelve terminal housings 17, the front sides of which - as mentioned - form the stop bar for the workpieces 1 and 2, are connected to one another in an articulated manner.
  • the cover plates 138 of the terminal housing 17 are each provided with a tab-like extension 8 (FIG. 9), which projects beyond the adjacent terminal housing 17 and allows a mutual pivoting of the terminal housing 17 at a limited clearance angle via a hinge-like sleeve-bolt connection 10.
  • a template 74 the surface of which faces the terminal housing 17 corresponds to the contour of a work piece, is pressed against the steel strip 29 by overcoming the preload given by the tension spring 72 of the link 27, the articulated terminal housing 17 will follow the outline shape of the template 74 (Fig. 7).
  • a and disengaging device is provided
  • the application bar of the workpiece - holding device which is formed by the front sides of the terminal housing 17, the contour of the workpiece Adjust 1 or 2 so that the positioning work can be made very easy.
  • the handlebars 27 are replaced by actuators which can be extended to different lengths, there is the possibility of rapidly adapting to changing operating conditions if workpieces with very different contours are to be positioned continuously.
  • the work piece holding device enables a quick and safe positioning of work pieces, in particular those with a complicated contour, so that the high production capacity of modern sewing machines can be better used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP80100847A 1979-06-16 1980-02-21 Dispositif de maintien de l'ouvrage Expired EP0020850B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2924412 1979-06-16
DE2924412A DE2924412C2 (de) 1979-06-16 1979-06-16 Arbeitsstück-Haltevorrichtung

Publications (2)

Publication Number Publication Date
EP0020850A1 true EP0020850A1 (fr) 1981-01-07
EP0020850B1 EP0020850B1 (fr) 1983-11-23

Family

ID=6073426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100847A Expired EP0020850B1 (fr) 1979-06-16 1980-02-21 Dispositif de maintien de l'ouvrage

Country Status (4)

Country Link
US (1) US4282820A (fr)
EP (1) EP0020850B1 (fr)
JP (1) JPS6058993B2 (fr)
DE (1) DE2924412C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153796A1 (fr) * 1984-01-09 1985-09-04 Chesebrough-Pond's Inc. Appareil et procédé pour effectuer une couture sinueuse
US4625665A (en) * 1984-01-09 1986-12-02 Elbert Engle Dual-chain sewing machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3123567C2 (de) * 1981-06-13 1984-07-26 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern Einrichtung zum Auslassen von Fellen
US5029542A (en) * 1989-07-19 1991-07-09 Automated Machinery Systems, Inc. Automatic tuck forming apparatus having improved clamp means
US5131224A (en) * 1990-07-23 1992-07-21 General Motors Corporation Method for reducing methane exhaust emissions from natural gas fueled engines
CN102677407B (zh) * 2012-05-10 2013-12-18 际华三五三六职业装有限公司 一种多功能活动缝纫挡边装置
CN110832130A (zh) * 2017-05-05 2020-02-21 梅沃-贸易代表有限公司 用于自动结合印刷织物面板或将印刷织物面板与柔性材料条带自动结合的装置和方法
CN113293525A (zh) * 2021-06-30 2021-08-24 四川中缝重工股份有限公司 布夹装置及绗缝机

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1404026A (fr) * 1964-06-30 1965-06-25 Chveinaia Fabrika No 9 Upravle Machine à coudre semi-automatique
CH472328A (fr) * 1966-06-04 1969-05-15 Courtaulds Ltd Appareil pour ramasser des pièces textiles
FR2024684A5 (en) * 1969-10-09 1970-08-28 Inst Shveinoi Promys Semi-automatic machine for lining over- - coats
DE2009627A1 (en) * 1970-03-02 1971-09-16 Figge, Will, 3501 Balhorn Holder for superposed sewing articles
US3669048A (en) * 1969-08-18 1972-06-13 Sira Institute Device for,and method of,feeding limp workpieces to an apparatus
DE2164862A1 (de) * 1971-12-27 1973-06-28 Kochs Adler Ag Werkstueckhalte- und klemmvorrichtung fuer naeheinrichtungen
DE2206510A1 (de) * 1972-02-11 1973-08-16 Liersch Arthur Naehautomat fuer das mustergerechte zusammennaehen von strickware
DE2714941A1 (de) * 1977-04-02 1978-10-05 Kochs Adler Ag Werkstueckauflage fuer naeheinrichtungen
US4122785A (en) * 1977-05-26 1978-10-31 Kochs Adler Ag Workpiece support for sewing devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068816A (en) * 1959-06-08 1962-12-18 Douglas M Mcbean Apparatus for simultaneously sewing a plurality of buttons on or buttonholes in a fabric
DE1982797U (de) * 1965-11-27 1968-04-04 Kochs Adler Ag Vorrichtung fuer naeheinrichtungen zum einspannen von werkstuecken.
DE2150197A1 (de) * 1971-10-08 1973-04-12 Kochs Adler Ag Fuehrungsschablone fuer naeheinrichtungen
US3980030A (en) * 1974-12-16 1976-09-14 Jochen Fischer Device for producing piped openings in garment parts
US4009672A (en) * 1975-10-06 1977-03-01 Jetsew, Inc. Sewing machine material preassembly system
US4150489A (en) * 1977-11-03 1979-04-24 Kochs Adler Ag Adjustable template for sewing device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1404026A (fr) * 1964-06-30 1965-06-25 Chveinaia Fabrika No 9 Upravle Machine à coudre semi-automatique
CH472328A (fr) * 1966-06-04 1969-05-15 Courtaulds Ltd Appareil pour ramasser des pièces textiles
US3669048A (en) * 1969-08-18 1972-06-13 Sira Institute Device for,and method of,feeding limp workpieces to an apparatus
FR2024684A5 (en) * 1969-10-09 1970-08-28 Inst Shveinoi Promys Semi-automatic machine for lining over- - coats
DE2009627A1 (en) * 1970-03-02 1971-09-16 Figge, Will, 3501 Balhorn Holder for superposed sewing articles
DE2164862A1 (de) * 1971-12-27 1973-06-28 Kochs Adler Ag Werkstueckhalte- und klemmvorrichtung fuer naeheinrichtungen
DE2206510A1 (de) * 1972-02-11 1973-08-16 Liersch Arthur Naehautomat fuer das mustergerechte zusammennaehen von strickware
DE2714941A1 (de) * 1977-04-02 1978-10-05 Kochs Adler Ag Werkstueckauflage fuer naeheinrichtungen
US4122785A (en) * 1977-05-26 1978-10-31 Kochs Adler Ag Workpiece support for sewing devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153796A1 (fr) * 1984-01-09 1985-09-04 Chesebrough-Pond's Inc. Appareil et procédé pour effectuer une couture sinueuse
US4625665A (en) * 1984-01-09 1986-12-02 Elbert Engle Dual-chain sewing machine

Also Published As

Publication number Publication date
JPS6058993B2 (ja) 1985-12-23
DE2924412C2 (de) 1983-06-23
DE2924412A1 (de) 1980-12-18
US4282820A (en) 1981-08-11
JPS563095A (en) 1981-01-13
EP0020850B1 (fr) 1983-11-23

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