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EP0376016A1 - Dispositif d'alimentation en bande pour machine à coudre - Google Patents

Dispositif d'alimentation en bande pour machine à coudre Download PDF

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Publication number
EP0376016A1
EP0376016A1 EP89122611A EP89122611A EP0376016A1 EP 0376016 A1 EP0376016 A1 EP 0376016A1 EP 89122611 A EP89122611 A EP 89122611A EP 89122611 A EP89122611 A EP 89122611A EP 0376016 A1 EP0376016 A1 EP 0376016A1
Authority
EP
European Patent Office
Prior art keywords
sewing
additional device
tape
guide shaft
needle
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
EP89122611A
Other languages
German (de)
English (en)
Other versions
EP0376016B1 (fr
Inventor
Alfred Trojan
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.)
Anton Cramer & Co KG GmbH
Original Assignee
Anton Cramer & Co KG 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 Anton Cramer & Co KG GmbH filed Critical Anton Cramer & Co KG GmbH
Priority to AT89122611T priority Critical patent/ATE102268T1/de
Publication of EP0376016A1 publication Critical patent/EP0376016A1/fr
Application granted granted Critical
Publication of EP0376016B1 publication Critical patent/EP0376016B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/06—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding
    • 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
    • D05D2303/00—Applied objects or articles
    • D05D2303/20—Small textile objects e.g., labels, beltloops
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00—Operations on the work before or after sewing
    • D05D2305/08—Cutting the workpiece
    • D05D2305/12—Cutting the workpiece transversally

Definitions

  • the invention relates to an additional device for a sewing machine for the automatic positionally correct sewing of tape pieces onto a material to be sewn, in particular single-bed sheets, the sewing machine having a sewing head, a sewing needle guided therein and a presser foot, and wherein the additional device comprises a tape dispenser, a tape guide with a the course of which arranged arranged tape cutter and feed means for the tape or the cut tape pieces.
  • a further additional device for a sewing machine which is also used for sewing on pieces of tape.
  • this additional device has a guide that can be tilted slightly about a horizontal axis relative to the sewing machine shaft, which is provided with a window on one side. Through this window, a drivable friction wheel protrudes into the interior of the shaft, in order, depending on the tilting position of the shaft, to either grasp and convey the belt or to be lifted from it.
  • a separate presser or presser foot Separate from the guide shaft there is a separate presser or presser foot which, with the interposition of a free space without a guide, is formed in an arcuate manner in a continuation of the shaft with a top side covered by an elastic tongue.
  • a disadvantage of this additional device is that it requires a large installation space and is technically very complex.
  • a belt conveyor is formed by an endless belt which extends essentially along a guide chute and can be driven by rollers and that the cutting device is arranged in the conveying direction of the belt between the endless belt and a second belt conveyor.
  • a disadvantage of this additional device is that the belt conveyor requires a very high mechanical outlay and is subject to high wear.
  • a slip occurs between the endless belt and the belt to be conveyed, which prevents an exact feed.
  • an additional device for a sewing machine which has a belt conveyor which is designed as a gripper which is movable essentially transversely to the vertical and has a belt holder limited by gripper fingers.
  • This additional device is specially designed to be arranged in a sewing machine bed or a sewing table in order to feed a band or band sections to the underside of the sewing material.
  • the attachment of the additional Direction on the sewing head of a sewing machine is practically impossible, because this device has a very large throat in the horizontal direction and requires a very large range of movement.
  • an additional device of the type mentioned at the outset which is characterized in that the belt guide is designed as a guide shaft provided with a longitudinal slot at least on one side and over part of the length, and in that the feed means are designed as a needle or needle group, which is arranged substantially perpendicular to the flat side of the band facing the longitudinal slot and which can be moved through it by suitable actuating means both in the direction of its longitudinal axis and in the direction of the longitudinal slot.
  • the new additional device offers the advantage that the means for guiding and feeding the tape can be attached to the sewing machine in a very space-saving manner. This is achieved in particular by eliminating the need for bulky rollers and roller drives. Rather, the new additional device enables a cyclical feed of the tape adapted to the remaining mode of operation of the sewing machine by means of the needle or needle arrangement, which itself takes up very little space and which can preferably be moved by actuating means arranged parallel to the shaft, which likewise take up little installation space. To transport the tape, the needle or needle group is moved from the outside to the longitudinal from an initial position in the direction of its longitudinal axis slit and inserted into the tape.
  • the tape By moving the needle or needle group in the longitudinal direction of the slot, the tape is pulled through the guide shaft in the same direction until a sufficient tape feed is achieved. After the needle or needle group has been moved out of the band and out of the shaft interior in the direction of its longitudinal axis and returned to the starting position, the next feed process can begin.
  • the tape feed is absolutely slip-free and therefore very precise.
  • the feed length can be very easily determined by mechanical limitation of the movement distance of the actuating means of the needle or needle group and z. B. can be easily changed by moving stops.
  • the direction or position of the piece of tape to be sewn relative to the sewing material can also be changed simply by pivoting the additional device, which allows a versatile use and z. B. makes turning the material unnecessary.
  • the additional device can also be used without problems on automatic sewing machines, on which two symmetrical sewing heads, which can be moved in the same axis direction, each process one half of the sewing material. Because of the small space requirement of the additional device, the two sewing heads can namely continue to be moved very close to one another without there being mutual hindrance from parts of the additional device, because the additional device has no protruding and protruding parts.
  • the lower part of the guide shaft is arched towards the point of insertion of the sewing needle and tangential to the top of the sewing material and at the same time is designed as a presser foot.
  • FIG. 1 of the drawing shows a side view of the sewing head 10 of a sewing machine 1, which is equipped with an additional device 2 according to the invention.
  • a sewing needle 11 projecting downwards is guided to be movable in the vertical direction, as indicated by the movement arrow 43.
  • a sewing table 12 can be seen, which, like the sewing machine 1, is only partially visible here.
  • the entire additional device 2 is mounted on a pivot bearing 21 and can be pivoted about a vertical axis x by approximately 90 ° in the direction of the movement arrow 40.
  • the pivot axis x coincides with the longitudinal axis of the sewing needle 11 and also runs through the recess Point 13 of the sewing needle 11 in a sewing material 5, which is placed on the sewing table 12.
  • a stepper motor rotary drive 28 is provided between the sewing machine 1 and the swivel bearing 21 of the additional device 2.
  • the additional device 2 also consists of a guide shaft 23 which runs parallel to the axis x and is rigidly connected at its upper end to the outer part of the pivot bearing 21.
  • the guide shaft 23 In its lower part 23 ', the guide shaft 23 is guided in an arc towards the puncture point 13, its thickness decreasing and being fed tangentially to the surface of the material 5.
  • the guide shaft At its upper end, the guide shaft is provided with a deflection and guide roller 23 ⁇ , via which a band 20, z. B. a fabric band, is guided into the interior of the guide shaft 23.
  • the tape 20 is rotatably held in the form of a tape roll 22 on a tape roll holder 22 'above the pivot bearing 21 as a tape supply.
  • a piston-cylinder unit 26 is provided on the side facing away from the sewing head 10 in the upper part, which is articulated via a pendulum joint 26 'to the upper end of the guide shaft 23.
  • the piston rod of the piston-cylinder unit 26 projects downward and carries at its outer end on the side facing the guide shaft 23 a protruding needle 25.
  • a further piston-cylinder unit 27 which is in an approximately horizontal position between the outer part of the pivot bearing 21 and the upper part of the piston-cylinder unit 26 is arranged, the latter is pivotable in the sense of the arrow 42 in a vertical plane.
  • the needle 25 can be displaced in the vertical direction in the sense of the arrow 41 by means of the piston-cylinder unit 26.
  • the guide is in the range of movement of the needle 25 shaft 23 on its side facing the needle 25 is provided with a longitudinal slot 24 represented by a dotted line, through which the needle 25 can be guided into the interior of the guide shaft 23.
  • a tape cutter 31 follows, which is of a type known per se and can be actuated by means of a further piston-cylinder unit 32.
  • a scanning device 33 is next provided on the arcuate part 23 'of the guide shaft 23, which is designed here as a light barrier which shines through the interior of the guide shaft 23 transversely to the direction of movement of the belt 20.
  • a braking device 34 which can also be actuated by means of a piston-cylinder unit 35 and which, when actuated, the band 20 or an already cut-off tail 20' in its rear Part gripped or clamped and thus fixed in its position.
  • a hold-down 37 is finally attached, which can be actuated by means of a further piston-cylinder unit 38.
  • This hold-down 37 is used to press the initial area of a piece of tape 20 'onto the sewing material 5 until the first sewing stitches are carried out by the sewing machine 1.
  • a blown air line 36 opens tangentially and points towards the free end of the curved part 23 'of the guide shaft 23.
  • This blown air line 36 serves to further convey a cut piece of tape 20 'within the bent part 23' of the guide shaft 23.
  • the design of the guide shaft 23 and the interaction with the needle 25 can be seen in particular from the cross section shown in FIG. 2 along the line II-II in FIG. 1.
  • the guide shaft 23 has a substantially rectangular cross section with a hollow interior. On one flat side, the guide shaft 23 has the longitudinal slot 24 already mentioned.
  • the belt 20 is guided within the guide shaft 23, the thickest and widest belt to be processed being slightly thinner and narrower than the dimensions of the hollow interior of the guide shaft 23.
  • the needle 25 can be guided into the interior of the guide shaft 23 through the longitudinal slot 24, as indicated by the movement arrow 42.
  • the needle 25 pierces the belt 20 running through the interior of the guide shaft 23, whereby the belt is conveyed further through the guide shaft 23 when the needle 25 is moved in the longitudinal direction of the longitudinal slot 24.
  • FIG. 3 of the drawing The space-saving design of the additional device 2 for the sewing machine 1 can be seen in particular from FIG. 3 of the drawing.
  • part of the sewing machine 1 with the sewing head 10 projecting downward can be seen, the sewing machine 1 with its sewing head 10 being arranged above a sewing table 12 supporting a material 5.
  • the auxiliary device 2 is x about the axis, which here extends perpendicularly to the plane of the drawing, in the sense of the movement arrow 40 by at least 90 o pivotable.
  • the pivot bearing 21 is arranged on the upper side of the sewing head 10 and, in cooperation with the stepper motor rotary drive 28, ensures a defined angular position of the additional device 2.
  • the guide shaft 23 is visible in an end view of its upper end, the deflection roller 23 ⁇ being arranged there to support the introduction of the tape 20 unrolled from the tape roll 22.
  • the piston-cylinder unit 26 for feeding the band 20 is visible.
  • the piston-cylinder unit 26 is pivotally held at its upper end by means of the pendulum joint 26 'at the upper end of the shaft 23, which in turn is rigidly connected to the outer part of the additional device 2 pivot bearing 21.
  • the additional device 2 is shown in dashed lines in a position pivoted 90 ° counterclockwise, which makes it particularly clear that the additional device 2 can be used in a variety of ways and in particular enables the sewing of tapes onto a material 5 in different directions without the sewing material 5 having to be turned or twisted.
  • the particularly space-saving design of the additional device 2 allows it to be attached to sewing heads 5 of automatic sewing machines which are mirror-symmetrical and whose two sewing heads can be moved on a common axis. Because of the small radius of the additional device 2, the sewing heads 10 can still be moved very close to one another without mutual hindrance.
  • the pivoting of the The two additional devices on the pair of sewing heads are then preferably made in opposite directions.
  • the tape 20 is coming from the supply roll 22 through the deflection roller 23 ⁇ into the interior of the guide shaft 23.
  • the band 20 is advanced and pushed in a vertical direction downwards by appropriate actuation of the piston-cylinder units 26 and 27.
  • a piece of tape 20 ' is cut off by means of the tape cutter 31.
  • This is further conveyed by blowing in blown air through the blown air line 36 within the bent part 23 'of the conveyor shaft 23 until the light barrier 33 detects the end of the band piece 20'.
  • the piston-cylinder unit 35 is triggered, which in turn actuates the braking device 34 and holds the band piece 20 'in this position.
  • the front end of the band piece 20 ' is located just below the hold-down 37, which is also operated after the actuation of the braking device 34.
  • the beginning of the piece of tape 20 is thus pressed onto the sewing material 5 and can then be sewn onto the sewing machine 1 after the braking device 34 has been released and the sewing machine 1 started.
  • the hold-down device 37 is also brought back into its release position. After an automatic or manual displacement of the sewing material 5 or the sewing machine 1, the process described is repeated until the sewing material 5 is occupied with the intended number of pieces of tape 20 '.
  • the pieces of tape 20 ' can be sewn on the material 5 in any direction, since the additional device 2 can be pivoted about the axis x by at least 90 o and because of the stepper motor rotary drive 28 optionally also insects can be set between 0 and 90 o .
  • the actuation of the sewing machine 1 and the additional device 2, more precisely the piston-cylinder units 26, 27, 32, 35 and 38 present in this, as well as the information acquisition from the scanning unit 33, is preferably carried out by an electronic control unit, such as that used to control sewing machines or sewing machines are already being used and which are to be expanded with corresponding additional programs for the control and monitoring of the additional device 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP89122611A 1988-12-27 1989-12-07 Dispositif d'alimentation en bande pour machine à coudre Expired - Lifetime EP0376016B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89122611T ATE102268T1 (de) 1988-12-27 1989-12-07 Bandzufuehreinrichtung fuer eine naehmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3844043 1988-12-27
DE3844043A DE3844043A1 (de) 1988-12-27 1988-12-27 Bandzufuhreinrichtung fuer eine naehmaschine

Publications (2)

Publication Number Publication Date
EP0376016A1 true EP0376016A1 (fr) 1990-07-04
EP0376016B1 EP0376016B1 (fr) 1994-03-02

Family

ID=6370355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122611A Expired - Lifetime EP0376016B1 (fr) 1988-12-27 1989-12-07 Dispositif d'alimentation en bande pour machine à coudre

Country Status (6)

Country Link
US (1) US5029543A (fr)
EP (1) EP0376016B1 (fr)
JP (1) JPH02215494A (fr)
AT (1) ATE102268T1 (fr)
DE (1) DE3844043A1 (fr)
ES (1) ES2049308T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118017A1 (de) * 1991-06-01 1992-12-03 Duerkopp Adler Ag Reissverschluss-zufuehreinrichtung fuer einen naehautomaten
US5566633A (en) * 1993-12-28 1996-10-22 G&G Sewing Machine Company, Inc. Sewing machine with tape feed and pneumatic devices for clamping workpieces
DE19852505B4 (de) * 1998-11-16 2007-03-08 Ecker, Andreas, Dr. Anordnung und Verfahren zur Bereitstellung von Flachmaterialstücken zur Kennzeichnung von Nähgut
JP2005144056A (ja) * 2003-11-19 2005-06-09 Tokai Ind Sewing Mach Co Ltd ミシン
JP5766405B2 (ja) * 2010-04-19 2015-08-19 東海工業ミシン株式会社 ミシン
CN111155245A (zh) * 2019-12-31 2020-05-15 南京际华三五二一环保科技有限公司 一种高效节能的自动裁剪滤袋筋条机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE66721C (de) * J. g. greene in Elizabeth, N.-J, V. St. A Faltapparat für Nähmaschinen
US3680509A (en) * 1970-01-27 1972-08-01 Quick Service Textiles Apparatus for feeding and cutting strip material
FR2147754A5 (fr) * 1971-07-28 1973-03-09 Kayser Roth Corp
DE2448887A1 (de) * 1974-10-14 1976-04-22 Pfaff Ind Masch Naehmaschine zum aufnaehen eines stoffstreifens auf einen stoffzuschnitt
US4024824A (en) * 1975-09-05 1977-05-24 Haff Jr Frederick Sewing machine feeding and cutting attachment for elastic stripping
US4703706A (en) * 1987-02-17 1987-11-03 Denis Plante Elastic band feeding and tensioning mechanism for a sewing machine
DE3642863A1 (de) * 1986-12-16 1988-06-30 Daimler Benz Ag Zusatzeinrichtung fuer naehmaschinen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1607532A (en) * 1926-04-14 1926-11-16 Halberg Samuel Sewing-machine attachment
DE612228C (de) * 1927-12-28 1935-04-16 Eduard Jalowetz Verfahren zur Biergewinnung
US2664839A (en) * 1951-09-14 1954-01-05 Cummins Rufus Dudley Tape tensioning attachment for sewing machines
US2862467A (en) * 1954-05-03 1958-12-02 Joseph Machine Co Inc Belt making machine
CH612228A5 (fr) * 1975-08-14 1979-07-13 Union Special Maschinenfab
US4076273A (en) * 1976-09-07 1978-02-28 Ernest Campion Trailer hitch
DE3534988C3 (de) * 1985-10-01 1995-02-09 Cramer Anton Gmbh Co Kg Steppeinrichtung zum Nähen von Steppmustern
DE3702747A1 (de) * 1987-01-30 1988-08-11 Wilhelm Oberhaus Fa Bandablaenger fuer naehautomaten
DE3705703C3 (de) * 1987-02-23 1994-02-24 Wilhelm Oberhaus Fa Bandzuführungsvorrichtung für Nähmaschinen
JPH0714364B2 (ja) * 1987-06-30 1995-02-22 ワイケイケイ株式会社 スライドフアスナ−端部への保護テ−プの供給，縫着方法および装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE66721C (de) * J. g. greene in Elizabeth, N.-J, V. St. A Faltapparat für Nähmaschinen
US3680509A (en) * 1970-01-27 1972-08-01 Quick Service Textiles Apparatus for feeding and cutting strip material
FR2147754A5 (fr) * 1971-07-28 1973-03-09 Kayser Roth Corp
DE2448887A1 (de) * 1974-10-14 1976-04-22 Pfaff Ind Masch Naehmaschine zum aufnaehen eines stoffstreifens auf einen stoffzuschnitt
US4024824A (en) * 1975-09-05 1977-05-24 Haff Jr Frederick Sewing machine feeding and cutting attachment for elastic stripping
DE3642863A1 (de) * 1986-12-16 1988-06-30 Daimler Benz Ag Zusatzeinrichtung fuer naehmaschinen
US4703706A (en) * 1987-02-17 1987-11-03 Denis Plante Elastic band feeding and tensioning mechanism for a sewing machine

Also Published As

Publication number Publication date
DE3844043A1 (de) 1990-07-05
US5029543A (en) 1991-07-09
DE3844043C2 (fr) 1990-10-04
EP0376016B1 (fr) 1994-03-02
JPH02215494A (ja) 1990-08-28
ES2049308T3 (es) 1994-04-16
ATE102268T1 (de) 1994-03-15

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