EP1371769A2 - Machine à coudre les boutonnières - Google Patents

Machine à coudre les boutonnières Download PDF

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Publication number
EP1371769A2
EP1371769A2 EP03010636A EP03010636A EP1371769A2 EP 1371769 A2 EP1371769 A2 EP 1371769A2 EP 03010636 A EP03010636 A EP 03010636A EP 03010636 A EP03010636 A EP 03010636A EP 1371769 A2 EP1371769 A2 EP 1371769A2
Authority
EP
European Patent Office
Prior art keywords
cutting
sewing machine
knife
drive
buttonhole 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
Application number
EP03010636A
Other languages
German (de)
English (en)
Other versions
EP1371769A3 (fr
EP1371769B1 (fr
Inventor
Karsten Filges
Theodor Janocha
Jochen Fischer
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 EP1371769A2 publication Critical patent/EP1371769A2/fr
Publication of EP1371769A3 publication Critical patent/EP1371769A3/fr
Application granted granted Critical
Publication of EP1371769B1 publication Critical patent/EP1371769B1/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
    • 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
    • D05B3/06—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 sewing buttonholes
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D05B37/04—Cutting devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2203/00—Selection of machines, accessories or parts of the same kind
    • 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 buttonhole sewing machine according to the preamble of claim 1.
  • Such a buttonhole sewing machine is known from DE 199 16 660 C1 US 6,220,192 A) known.
  • a knife fixed, but replaceable, attached.
  • a rotatable carrier which can be driven up and down several cutting blocks attached, one around a y-direction Axis can optionally be brought into a position in which a Cutting block interacts with the knife.
  • the construction effort for the swivel drive of the cutting blocks and for the adjustment of the carrier is large in a given position of a cutting block.
  • the invention is therefore based on the object of a buttonhole sewing machine of the generic type so that the constructive Effort for the cutting device is as low as possible.
  • the cutting blocks are made by a linear movement, which can be extremely short, that is only over the Width of a cutting block, optionally brought into one position, in which it engages with the knife, which can only be moved in a straight line come.
  • the anvil is attached to the base plate and has only one carrier movable in one direction, namely the x direction, while the knife is only performing a vertical linear movement.
  • a buttonhole sewing machine is C-shaped, d. H. it has an upper arm 1, a lower, housing-like Base plate 2 and a connecting both, approximately vertical Stand 3 on.
  • An arm shaft 4 is mounted in the arm 1 in the usual way, which can be driven by a drive motor 5 only indicated in FIG. 7. From the arm shaft 4, the drive is a vertical one in the usual way Slidable needle bar 6 with a needle 7 and a swing drive derived for this.
  • An x-y table 8 is arranged on the base plate 2, which means that it is by one in two horizontal coordinate directions, namely the x-direction and the y-direction, movable cross slide.
  • the x-y table 8 is designed in the usual way, for example is known from DE 198 07 771 A1 (corresponding to US Pat. No. 6,095,066).
  • the x-y table 8 is driven by means of only indicated in FIG Drives, namely an x drive 9 and a y drive 10, in which it is positionable electric motors, so usually preferred Stepper motors, but also adjustable DC motors.
  • a two-part support plate 11a, 11b is arranged on the x-y table 8.
  • One of the two partial support plates 11a or 11b can be placed on the x-y table 8 be supported displaceably in the x direction, while the other partial support plate 11b or 11a immovable, that is to say fixedly arranged on the x-y table 8 is what is not shown in detail.
  • each partial support plate 11a or 11b is a sewing material clamp 12a or 12b attached, each one on the respective partial support plate 11a or 11b attached partial platen 13a or 13b, which one clamping plate 14a or 14b is assigned.
  • the clamping plates 14a, 14b are attached to double-arm bearing levers 15a, 15b.
  • a buttonhole cutting device 16 which essentially consists of an upper drivable cutting part 17 and a lower anvil 18.
  • the upper cutting part 17 has a cutting drive 19 to be described in more detail below, one end of which is fastened in the base plate 2 by means of a joint 20.
  • the other upper end of the drive 19 is connected to a two-armed lever 21 by means of a joint 22, which in turn is articulated by means of a further joint 21a on a drive rod 23 which is guided in a vertically displaceable manner in at least one guide bearing 24 arranged on the arm 1.
  • a knife head 25 is attached, on the underside of which a knife 26 shown in FIG. 3 is replaceably attached.
  • the knife 26 has a rectilinear cutting part 27 and an eye cutting part 28.
  • the straight cutting part 27 has a length L 27
  • the entire knife 26, consisting of the straight cutting part 27 and the eye cutting part 28 has a length L 26 .
  • the anvil 18 has a base body 29 which is in the base plate 2 is firmly arranged.
  • a carrier 30 is arranged on the base body 29, which can be moved in the x direction. It is by means of strips 31, 32 on the Main body 29 held, the strips 31, 32 by means of screws 33 are attached to the base body 29.
  • an adjustment drive 34 integrated, which is a two-sided, pneumatic acted upon piston-cylinder drive.
  • Its cylinder 35 is through a bore running in the x direction in the base body 29 formed, which is closed at its ends by means of covers 36.
  • a piston 37 is slidably disposed on the end faces thereof each a line 38, 39 opens into the cylinder 35, each for Compressed air supply and for ventilation.
  • the carrier 30 is by means of of a pin 31a connected to the piston 37, so it is depending on the action of the piston 37 with compressed air via line 38 or 39 from Piston 37 moved in the x direction.
  • the two shifting movements are limited by adjustable end stops 40, 41, which by Base body 29 arranged screws are formed.
  • a first cutting block 42 and a second are on the carrier 30 Cutting block 43 fastened by means of screws 44, that is to say exchangeably. How results from the overall view of Fig. 3 and Fig. 6, comes when the first cutting block 42 is located below the knife 26, that is cooperates with this, the entire knife 26, so the straight line Cutting part 27 and the eye cutting part 28 with the cutting block 42 engaged. If, on the other hand, the second cutting block 43 is below the Knife 26 is located, then only the straight cutting part 27 comes along this engages; the eye cutting part 28 does not cut.
  • the second Cutting block 43 points in that associated with the eye cutting part Area a recess 43a.
  • the sewing machine is provided with a control unit 46, via which the x drive 9, the y drive 10, the multi-way valve 45 for the adjusting drive 34, the drive motor 5 of the arm shaft 4, not shown Clamp drives for the sewing material clamps 12a, 12b and the cutting drive 19 can be controlled.
  • the control unit 46 has a memory part 47 on. Furthermore, it is an operating unit 48 with an input keyboard 49 and a display 50.
  • FIGS. 8 and 9 The method of operation results from FIGS. 8 and 9.
  • the sewing material part 52 is transported into the cutting device 16 in the y direction by means of the xy table 8.
  • the first cutting block 42 is located under the knife 26.
  • the cutting drive 19 is actuated.
  • the entire knife 26 comes into cutting action with the first cutting block 42 forming a counter surface, so that the straight cutting part 27 and the eye cutting part 28 cut an eye buttonhole 53 with the length L 26 .
  • FIGS. 10 and 11 An alternative results from FIGS. 10 and 11.
  • the Cutting blocks 42 ', 43' are designed so that the first cutting block 42 'only with the straight cutting part 27 and the eye cutting part 28 comes into cutting connection while the second cutting block 43 'is designed such that it only has the rectilinear cutting part 27 and the eye cutting part 28 'comes into cutting connection.
  • This Design thus enables the generation of different in their position Eyelet buttonholes.
  • the cutting drive 19 in the embodiment according to FIG. 12 is in the Essentially formed by a multi-chamber cylinder 56, which by means of of the joint 20 is fixed in the base plate 2. There is a piston rod in it 57 arranged, the outer end of the hinge 22 with the Lever 21 is connected. There are a total of four chambers 58 in cylinder 56 to 61 separated by partitions 62, 63, 64, each sealed are penetrated by the piston rod 57. Chambers 58 to 61 are - in relation to the length of the cylinder 56 - one behind the other arranged. A piston 65, 66, 67, 68 is arranged in each chamber is firmly connected to the piston rod 57 and opposite the cylinder 56 is sealed.
  • the piston 65 in the first chamber 58 is designed to be acted upon from two sides, namely via lines 69, 70, i.e. this is the piston rod depending on the loading in extension direction 71 or in extension direction 72 acted upon.
  • the three further chambers 59, 60, 61 are by means of a common line 73 can only be acted upon in such a way that a Force in extension direction 71 is exerted.
  • the three lines 69, 70, 73 can be acted upon by three multi-way valves 74, 75, 76, which by the control unit 46 can be controlled by means of the control unit 48.
  • the cutting drive 19 ' is a double-acting pneumatically actuated piston-cylinder drive 77 provided, the cylinder 78 on the one hand and the piston rod 79 on the other hand, are integrated into a toggle mechanism 80.
  • This Toggle mechanism 80 is on the one hand by means of the joint 22 with the Swivel lever 21 connected and on the other hand by means of the joint 20 supported a force limiter 81.
  • the cylinder 78 is via a multi-way valve 82 and two lines 83, 84 connected on both sides of the Open piston 85 of drive 77 in cylinder 78.
  • a limitation on the pivot lever 21 and thus the knife 26 or 26 'exerted force is caused by the force limiter 81.
  • This has a four-day abutment 86, which is fixed by means of a stationary Part 87 stationary, d. H. immovable, supported in the base plate 2.
  • the stationary part 87 of the abutment 86 carries a flexible part 88, on which the toggle mechanism 80 is supported by means of the joint 20.
  • the stationary part 87 is constructed like a frame and points one above the other four pneumatically actuated membrane cylinders 90, 91, 92, 93 as passive linear drives.
  • the compliant part 88 of the abutment 86 also has intermediate shelves 94 one above the other, wherein each an intermediate floor 94 is arranged above an intermediate floor 89.
  • the membrane cylinders 90 to 93 are each on an intermediate floor 89 and arranged below an intermediate floor 94.
  • everyone Membrane cylinder 90 to 93 points below its membrane 95, ie in its interior, an inner stop 96.
  • On the membrane 95 is an outer stop 97 is attached. The respective outer stop 97 can therefore be moved vertically by means of the respective membrane 95 become.
  • each membrane cylinder only has a small stroke of, for example, one to can run two millimeters.
  • the membrane cylinders 91, 92, 93 are connected via lines 98, 99, 100 Multi-way valves 101, 102, 103 acted on with compressed air.
  • the membrane cylinder 90 is connected to line 83 which drives drive 77 applied.
  • the size of the forces exerted can be predetermined by a pressure regulator 104 be controlled, which is also controlled via the control unit 48.
  • a similar pressure regulator can of course also be used in the exemplary embodiment 12 are provided.
  • the purpose of the force gradation is to adapt the cutting device 16 to different cutting conditions caused by the Hardness of the sewing material, the type of sewing material, the number of items to be cut Layers of material, but also by the shape and / or size of the material to be carried out Cut can be influenced.
  • the cutting force is flexible and adaptable to the cutting conditions Cutting device 16 created in the knife 26, 26 'and Anvil 18 protected against unnecessary wear due to excessive cutting forces are, which significantly increases operational readiness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP03010636A 2002-06-10 2003-05-13 Machine à coudre les boutonnières Expired - Lifetime EP1371769B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10225511A DE10225511C1 (de) 2002-06-10 2002-06-10 Knopfloch-Nähmaschine
DE10225511 2002-06-10

Publications (3)

Publication Number Publication Date
EP1371769A2 true EP1371769A2 (fr) 2003-12-17
EP1371769A3 EP1371769A3 (fr) 2006-03-15
EP1371769B1 EP1371769B1 (fr) 2007-03-28

Family

ID=7714647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010636A Expired - Lifetime EP1371769B1 (fr) 2002-06-10 2003-05-13 Machine à coudre les boutonnières

Country Status (6)

Country Link
US (1) US6694901B2 (fr)
EP (1) EP1371769B1 (fr)
JP (1) JP2004008803A (fr)
CN (1) CN100476053C (fr)
AT (1) ATE358201T1 (fr)
DE (2) DE10225511C1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304821B3 (de) 2003-02-06 2004-02-26 Dürkopp Adler AG Knopfloch-Nähmaschine
JP4108548B2 (ja) * 2003-06-19 2008-06-25 ミネベア株式会社 キーボード用スイッチ
DE102004055713A1 (de) * 2004-03-22 2005-10-13 Dürkopp Adler AG Knopfloch-Nähmaschine mit einer Knopfloch-Schneidvorrichtung
DE102005021768A1 (de) 2005-05-11 2006-11-16 Dürkopp Adler AG Knopfloch-Nähmaschine
JP4726569B2 (ja) * 2005-08-04 2011-07-20 Ｊｕｋｉ株式会社 ミシンの布切断装置
DE102011005936A1 (de) 2011-03-23 2012-09-27 Dürkopp Adler AG Augenknopfloch-Nähmaschine sowie Verfahren zum Nähen einer einem Gimpfaden aufweisenden Augenknopfloch-Naht
DE102012205049A1 (de) 2012-03-29 2013-10-02 Dürkopp Adler AG Faden-Schneid-Baugruppe für eine Schnürloch-Nähmaschine
CH706492A1 (de) * 2012-05-09 2013-11-15 Bernina Int Ag Vorrichtung und Verfahren zum Stanzen eines Flächengebildes mit einer Nähmaschine.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291197C (fr) * 1913-06-30
DE3930562C1 (fr) * 1989-09-13 1991-01-31 Duerkopp Adler Ag, 4800 Bielefeld, De
JPH07328261A (ja) * 1994-06-08 1995-12-19 Brother Ind Ltd 鳩目穴かがりミシンのカッター装置
DE19716629C1 (de) * 1997-04-21 1998-08-20 Duerkopp Adler Ag Knopflochnähmaschine mit mehreren Schneidblöcken
DE19916660C1 (de) * 1999-04-14 2000-06-21 Duerkopp Adler Ag Knopfloch-Nähmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807771C1 (de) 1998-02-24 1999-04-15 Duerkopp Adler Ag Augenknopfloch-Nähmaschine
DE19951127C2 (de) * 1999-10-23 2002-06-20 Duerkopp Adler Ag Knopfloch-Nähmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291197C (fr) * 1913-06-30
DE3930562C1 (fr) * 1989-09-13 1991-01-31 Duerkopp Adler Ag, 4800 Bielefeld, De
JPH07328261A (ja) * 1994-06-08 1995-12-19 Brother Ind Ltd 鳩目穴かがりミシンのカッター装置
DE19716629C1 (de) * 1997-04-21 1998-08-20 Duerkopp Adler Ag Knopflochnähmaschine mit mehreren Schneidblöcken
DE19916660C1 (de) * 1999-04-14 2000-06-21 Duerkopp Adler Ag Knopfloch-Nähmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1996, Nr. 04, 30. April 1996 (1996-04-30) -& JP 07 328261 A (BROTHER IND LTD), 19. Dezember 1995 (1995-12-19) *

Also Published As

Publication number Publication date
DE10225511C1 (de) 2003-06-18
CN100476053C (zh) 2009-04-08
US6694901B2 (en) 2004-02-24
CN1468997A (zh) 2004-01-21
EP1371769A3 (fr) 2006-03-15
ATE358201T1 (de) 2007-04-15
US20030226485A1 (en) 2003-12-11
DE50306889D1 (de) 2007-05-10
JP2004008803A (ja) 2004-01-15
EP1371769B1 (fr) 2007-03-28

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