EP2028310A2 - Machine à coudre - Google Patents

Machine à coudre Download PDF

Info

Publication number
EP2028310A2
EP2028310A2 EP08014257A EP08014257A EP2028310A2 EP 2028310 A2 EP2028310 A2 EP 2028310A2 EP 08014257 A EP08014257 A EP 08014257A EP 08014257 A EP08014257 A EP 08014257A EP 2028310 A2 EP2028310 A2 EP 2028310A2
Authority
EP
European Patent Office
Prior art keywords
guide
sewing
sewing machine
seam
machine according
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.)
Withdrawn
Application number
EP08014257A
Other languages
German (de)
English (en)
Other versions
EP2028310A3 (fr
Inventor
Ingolf Reichenbecher
Jochen Fäth
Erwin Roth
Edgar Hartmann
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
Original Assignee
Duerkopp Adler AG
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 Duerkopp Adler AG filed Critical Duerkopp Adler AG
Publication of EP2028310A2 publication Critical patent/EP2028310A2/fr
Publication of EP2028310A3 publication Critical patent/EP2028310A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Program-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
    • D05B19/16—Control of workpiece movement, e.g. modulation of travel of feed dog
    • 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
    • D05B3/12—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 fastening articles by sewing
    • 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
    • D05B3/04—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 with mechanisms for work feed
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
    • 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
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
    • 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
    • D05D2303/02—Tape
    • D05D2303/06—Tape comprising rigid objects, e.g. slide fasteners

Definitions

  • the invention relates to a sewing machine for sewing two mutually parallel seams in sewing material.
  • An automatic sewing machine of the type mentioned is known by public prior use.
  • sewing machines that care must be taken to ensure that the sewing material does not warp during the sewing process even by very small amounts relative to a sewing material transport device.
  • double seams are often produced in known sewing machines with two-needle machines. This leads to the outer seam having longer stitches than the inner seam, which is undesirable for reasons of optical stability and thread retention.
  • a further object of the invention is to avoid that attached to the fabric additional components such as a zipper closing body affect neither the fixing nor the transporting of the fabric during the sewing process.
  • a seam guiding device with a guide body displaceable between two guide positions makes it possible to use one and the same guide slot for sewing the two seams running parallel to one another (double seams).
  • the guide slot between two guide positions relative to the then not necessarily hubverlagerbar executable guide body between the two guide positions can be displaced in the same way.
  • the two seams are inventively sewn sequentially, with only one sewing needle is used. The seams can then both be sewn with a constant stitch length, so that an optimum stitch length in terms of holding strength and yarn consumption can be used.
  • a rolling off according to claim 2 guide body leads to a safe, reproducible and low-wear guide during the sewing of the two seams.
  • the positions of the two seams to be sewn are defined relative to each other.
  • An embodiment of the guide body according to claim 3 is inexpensive and particularly suitable when large lot sizes to be sewn with the same seam spacing.
  • An alternative embodiment according to claim 4 allows in particular a continuous adjustment of the guide body and thus a plurality of guide positions, each in the exact seam position differ. In this way, double seams with adjustable variable distance of the two mutually parallel seams can be realized.
  • a beveled contact surface according to claim 5 leads to a flat contact of the conical body with the contact surface of the guide slot. This reduces the wear of the guide elements.
  • the guide elements can be made of less hard material.
  • a pneumatic drive according to claim 6 is robust and inexpensive.
  • a drive is selected, which allows a plurality of guide positions.
  • a stepper motor is particularly suitable.
  • a pneumatic drive with several intermediate stops is also possible.
  • a pressure bar according to claim 7 leads to a secure holding the fabric during the sewing process. The risk of a fabric delay is eliminated.
  • Such a design prevents the additional component fixed on the sewing material from undesirably hanging on the groove in the sewing material support plate during transport through the material handling device. This cause of a possible fabric delay is thus eliminated.
  • Such a design of a sliding body can also be used independently of the hubverlagerbaren guide body discussed in connection with claim 1, since the advantages of the sliding body of which the seam guiding device with the guide body are independent.
  • a ramp according to claim 11 leads to an edge-free transition of the groove bottom to the fabric support plate. This prevents snagging of the additional component even when the sliding body is not fully raised at the moment when the additional component passes the ramp.
  • a double-acting cylinder according to claim 12 is robust, compact and inexpensive.
  • a sewing machine 1 is used for sewing two seams running parallel to one another in a sewing material 2.
  • the seams to be sewn to the sewing machine 1 are two parallel and curved seams, ie a double seam, for sewing a zipper a trouser outer fabric.
  • Fig. 1 shows the sewing machine 1 in a starting position after the positioned placement of the fabric 2 on a fabric support plate 3.
  • the fabric 2 is aligned in a known manner via a stop body 4 and possibly a light curtain not shown in the drawing and positioned on the support plate 3 ,
  • a stop body 4 for fixing the Nähguts 2 in the starting position to Fig. 1 serves a holding claw 5, the fabric 2 in the in the Fig. 2 illustrated Fixier ein in the area of a waistband of the material 2 against the support plate 3 is stuck.
  • the Fig. 1 shows the retaining claw 5 in a non-clamping rest position.
  • a fabric transport means for transporting the material to be sutured 2 during the sewing of the two seams is a fabric transport means in the form of a compensating bracket 7, for the sake of clarity in the Fig. 1 and 2 not shown.
  • the Fig. 3 shows the balancing clamp 7 in a stapling position in which the balancing clamp 7 clamps the fabric 2 along the trainees seams against the support plate 3.
  • a pressure bar 8 of the compensating bracket 7, which in detail in the Fig. 4 is shown.
  • the pressure bar 8 has in the region of the waistband of the sewing material 2 a plurality of arranged in a row Klemmfbibchen 9, which are biased independently of each other via associated springs 10 against the fabric 2.
  • Klemmfenchen 9 ensure, for example, due to different thicknesses or due to a different number of fabric layers uneven fabric for height compensation and despite the unevenness for a uniform clamping force exerted by the pressure bar 8 on the fabric 2.
  • a slot 11 is executed.
  • An inner edge 12 of the slot 11 follows the course of the trainee 2 trainee inner seam.
  • An outer edge 13 of the slot 11 follows the course of the sewing material 2 trainees outer seam.
  • the Klemmfchipchen 9 clamp the fabric 2 through the slot 11 of the pressure bar 8 through, in a region of the elongated hole 11 which is spaced from a bent portion of the pressure bar 8.
  • the slot 11 has transversely to the seam to be sewn seam of the inner and the outer seam in the fabric 2 a width which is greater than the distance of the parallel seams to be produced from each other. At the same time, this width of the oblong hole is smaller than twice the distance between the two parallel seams to be produced from each other.
  • Fig. 3 shows the compensating bracket 7 after its displacement from an elevated release position in the stapling position.
  • the sewing material 2 is then fixed relative to the compensating bracket 7.
  • the retaining claw 5 raised back to the neutral position.
  • the stopper 4 is from the stop position to Fig. 1 in the Fig. 3 shifted upwards to a rest position.
  • a guided drive 14 allows a displacement of the compensating clamp 7 parallel to the support plate 3 in both the x and y direction of the in the Fig. 3 shown Cartesian coordinate system.
  • the x-direction runs in the Fig. 3 to the left.
  • the y-direction runs in the Fig. 3 downward.
  • groove 15 runs in the displacement of the compensating clamp 7 with the fabric 2 from the staple position Fig. 3 in a sewing position Fig. 5 a closing body of the zipper to be connected to the sewing material via the seams.
  • the bottom of the groove 15 is formed by a sliding body 16 (see. Figs. 7 and 8).
  • Fig. 7 shows the sliding body 16 in a lowered position in which the groove 15 is formed, in which therefore the sliding body 16 forms the bottom of the groove 15.
  • Fig. 8 shows the sliding body 16 in a raised position in which the sliding body 16, the groove 15 fills in such a way that the sliding body 16 continues the surrounding him sewing material support plate 3 stages.
  • a double-acting lifting cylinder 17 To convert the sliding body 16 between the lowered and the raised position is a double-acting lifting cylinder 17. The latter is connected at one end to the sliding body 16 and the other end to a fixedly connected to the support plate 3 base 18.
  • the cylinder 17 is arranged lying in the base body 18. In the extended position of the cylinder 17 (see. Fig.
  • a sewing head 21 of a sewing machine 22 of the automatic sewing machine 1 is provided with stitch forming tools, in particular a sewing needle and a gripper, a stitch formation region 23 of the support plate 3, which in the Fig. 5 indicated by dashed lines.
  • stitch formation area 23 a stitch plate (not visible in the drawing) with a stitch hole is inserted into the support plate 3.
  • An end of the groove 15 facing the stitching region 23 has a ramp 24, so that this end opens in a ramp shape into the sewing material support plate 3 surrounding the groove 15.
  • the ramp 24 therefore ensures, during transport of the sewing material 2, a trouble-free running of the zipper closing body out of the region of the groove 15.
  • the sewing machine 22 begins with the sewing of the inner seam, starting from the bent end of this.
  • the seam guiding device 25 To guide the curved seam course serves a seam guiding device 25, which in the Fig. 6 and 11 is shown in a perspective cutout.
  • the seam guiding device 25 has a guide slot 26 with a leading edge 27, which is bent in accordance with the curved seam shape of the inner and the outer seam.
  • the seam guide device 25 next to the guide slot 26 is a guide body 28.
  • the guide slot 26 is rigid with the fabric support plate 3 and the guide body 28 is rigidly connected to the compensating bracket 7.
  • Fig. 12 shows the guide body 28 enlarged in detail.
  • the guide body 28 comprises a small guide roller 29 as the first guide section for producing the inner seam.
  • the latter is mounted rotatably about a vertical axis 30 via a needle bearing 31.
  • This is also rotatably mounted about the rotation axis 30 via a further needle bearing 33.
  • a shaft extending along the axis of rotation 30 around which the rollers 29 and 32 rotate is extended into an outer sleeve 34 of the guide body 28 via a shaft extension 35.
  • the shaft extension 35 is mounted axially via bearing bushes 36 in the outer sleeve 34.
  • An anti-rotation 34a for the outer sleeve 34 is formed as non-rotatably connected to the outer sleeve 34 rib. This rib engages in a corresponding groove of a frame-fixed
  • the guide body 28 is hubverlagerbar between two guide positions.
  • the Fig. 6 shows a first of these two guide positions of the guide body 28 for generating the inner seam.
  • the Fig. 11 shows the second guide position of the guide body 28 for producing the outer seam.
  • the guide body 28 is displaced upwardly relative to the first guide position. This displacement is effected by a pneumatic cylinder 37, the working piston with the shaft extension 35 is sheared and tensile strength connected.
  • an air connection 38 is the working cylinder 37 with a compressed air source, not shown, in fluid communication.
  • Fig. 6 shows the guide body 28 during transport of the material 2 by the compensating clamp 7 shortly before reaching the first guide position for generating the inner seam.
  • the small guide roller 29 comes into contact with a switching lug 39, which is arranged upstream of the guide slot 26 and is spring-loaded against the guide body 28 on the guide slot 26. Due to the contact of the small guide roller 29 with the switching lug 39, a switching signal is triggered when the switching lug 39 retracts in the direction of the guide slot 26, which signals the transport movement of the compensating clamp 7 from the position Fig. 3 in the position Fig. 5 decelerates from a first, higher transport speed to a second, lower transport speed. This braking ensures that the small guide roller 29 comes sufficiently soft with the guide slot 26 in reaching the first guide position in contact.
  • Fig. 9 shows the sewing position at the end of the sewn inner seam.
  • the small guide roller 29 is unrolled on the guide edge 27 of the guide slot 26.
  • the seam course of the inner seam follows the inner edge 12 of the elongated hole 11 at a small distance, so that a distortion of the material 2 during the sewing of the inner seam is excluded.
  • the compensating clamp 7 transports the sewing material 2 substantially in the negative x-direction with a raised sewing needle back into one in the Fig. 10 illustrated sewing position "beginning outer seam".
  • the compensating clamp 7 transports the material 2 so far in the negative x-direction that the switching lug 39 relative to the guide link 26 can move out again.
  • the pneumatic cylinder 37 is actuated, so that now the large guide roller 32 comes to rest at the level of the leading edge 27. It is therefore set the second guide position of the guide body 28 for sewing the outer seam. This position of the guide body 28 is in the Fig. 11 shown.
  • the compensating clamp 7 the sewing material 2 is displaced again in the positive x-direction, with the switching lug 26 engaging the guide link 26 ensuring that this displacement movement takes place in a braked manner, as already explained in connection with the first guiding position.
  • the zipper part to the fabric 2 is completed and the fabric 2 is, for example, by a blast of compressed air, ejected.
  • a cone-shaped body 40 is provided in place of the two guide rollers 29, 32, whose outer contour in the Fig. 12 indicated by dashed lines.
  • the guide edge 27 is beveled at an angle which is complementary to the cone angle of the conical body 40 of the guide body 28. In this way, it is ensured that the conical body 40 when rolling on the leading edge 27 comes into contact with this area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sewing Machines And Sewing (AREA)
EP08014257A 2007-08-23 2008-08-09 Machine à coudre Withdrawn EP2028310A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007011790U DE202007011790U1 (de) 2007-08-23 2007-08-23 Nähautomat

Publications (2)

Publication Number Publication Date
EP2028310A2 true EP2028310A2 (fr) 2009-02-25
EP2028310A3 EP2028310A3 (fr) 2011-10-19

Family

ID=40122329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08014257A Withdrawn EP2028310A3 (fr) 2007-08-23 2008-08-09 Machine à coudre

Country Status (5)

Country Link
EP (1) EP2028310A3 (fr)
JP (1) JP2009050700A (fr)
KR (1) KR20090020523A (fr)
CN (1) CN101372793A (fr)
DE (1) DE202007011790U1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105637134B (zh) * 2013-10-17 2017-08-25 Ykk株式会社 缝纫机及针板构造、以及链牙列的缝纫方法
CN106930009B (zh) * 2017-04-24 2022-10-21 福恩达机器人（昆山）有限公司 一种自动拉链缝制装置、缝纫机及缝制方法
EP3733945B1 (fr) * 2019-04-30 2021-11-10 Santex Rimar Group S.r.l. Machine de liaison comprenant un guide pour positionner correctement un col simple et un morceau de tricot l'un par rapport à l'autre
IT202000005536A1 (it) * 2020-03-16 2021-09-16 Golden Lady Co Spa Apparato e metodo per unire tra loro una fascia anulare e un manufatto tessile comprendente un corpino
CN112281320A (zh) * 2020-09-06 2021-01-29 广州喜登堡床垫机械有限公司 一种自动缝纫机
WO2025179578A1 (fr) * 2024-03-01 2025-09-04 Centre For Garment Production Limited Système et procédé de couture tridimensionnelle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7138113U (de) * 1975-04-30 Kochs Adler Ag Führungsschablone für Näheinrichtungen
US2142476A (en) * 1934-06-23 1939-01-03 Progress Specialty Company Templet and operating means therefor for the manufacture of cuffs
NL263396A (fr) * 1960-04-06
DE1199597B (de) * 1960-04-06 1965-08-26 Bata Schuhe Ag Einrichtung zum automatischen Herstellen von parallelen Doppelnaehten auf Naehmaschinen
DE1485281B1 (de) * 1962-12-10 1969-12-04 Pfaff Ag G M Naehwegkopiervorrichtung
DE1485200A1 (de) * 1965-08-12 1969-05-22 Kochs Adler Ag Schablonensteuerung von Bearbeitungsmaschinen,beispielsweise Naehmaschinen,mittels angetriebener Magnetrollen
DE3901922A1 (de) * 1988-04-16 1990-07-26 Kochs Adler Ag Verfahren zum anbringen eines stoffstreifens mit einem reissverschlussteil an einer vorderhose und naeheinheit zur durchfuehrung des verfahrens
US5117716A (en) * 1988-12-29 1992-06-02 Shoda Robert L Dual template assembly for a tracer lathe
DE102007039866A1 (de) * 2007-08-23 2009-02-26 Dürkopp Adler AG Nähautomat

Also Published As

Publication number Publication date
KR20090020523A (ko) 2009-02-26
CN101372793A (zh) 2009-02-25
DE202007011790U1 (de) 2009-01-02
JP2009050700A (ja) 2009-03-12
EP2028310A3 (fr) 2011-10-19

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