EP1371770B1 - Machine à coudre les boutonnières - Google Patents

Machine à coudre les boutonnières Download PDF

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Publication number
EP1371770B1
EP1371770B1 EP03010637A EP03010637A EP1371770B1 EP 1371770 B1 EP1371770 B1 EP 1371770B1 EP 03010637 A EP03010637 A EP 03010637A EP 03010637 A EP03010637 A EP 03010637A EP 1371770 B1 EP1371770 B1 EP 1371770B1
Authority
EP
European Patent Office
Prior art keywords
cutting
sewing machine
drive
piston
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.)
Expired - Lifetime
Application number
EP03010637A
Other languages
German (de)
English (en)
Other versions
EP1371770A2 (fr
EP1371770A3 (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 EP1371770A2 publication Critical patent/EP1371770A2/fr
Publication of EP1371770A3 publication Critical patent/EP1371770A3/fr
Application granted granted Critical
Publication of EP1371770B1 publication Critical patent/EP1371770B1/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
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D05B37/04—Cutting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/12—Fluid-pressure means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7107—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being mechanically linked
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/162—With control means responsive to replaceable or selectable information program
    • Y10T83/173—Arithmetically determined program
    • Y10T83/18—With operator input means

Definitions

  • the invention relates to a buttonhole sewing machine according to the preamble of claim 1.
  • the invention is therefore the object of developing the known buttonhole sewing machine so that the cutting force is adjustable in a simple manner in exactly reproducible form.
  • the linear drives are used as active drives for generating the cutting force.
  • the linear drives are used passively, d. H.
  • the force limiter formed by them forms depending on the action of the linear drives a more or less flexible abutment for the cutting force generating piston-cylinder drive.
  • the piston-cylinder drive always generates at least the maximum possible cutting force, from which then, if necessary, a part is compensated by the force limiter.
  • the actuation of the linear actuators via multi-way valves, which can be controlled from a central control unit.
  • a buttonhole sewing machine is C-shaped, d. H. it has an upper arm 1, a lower, cabinet-like base plate 2 and a connecting both, approximately vertical stand 3.
  • an arm shaft 4 is mounted in a conventional manner, which can be driven by a drive motor 5 indicated only in Fig. 7. From the arm shaft 4, the drive of a vertically displaceable needle bar 6 with a needle 7 and a vibratory drive are derived for this purpose in a conventional manner.
  • an xy-table 8 is arranged, which is thus a in two horizontal coordinate directions, namely the x-direction and the y-direction, slidable cross slide.
  • the xy-table 8 is formed in a conventional manner, as for example from the DE 198 07 771 A1 (corresponding U.S. Patent 6,095,066 ) is known.
  • the drive of the xy-table 8 is effected by means of only indicated in Fig. 7 drives, namely an x-drive 9 and a y-drive 10, which are positionable electric motors, so preferably preferably stepper motors, but also controllable DC motors ,
  • a two-part support plate 11a, 11b is arranged on the xy table 8.
  • One of the two partial support plates 11a or 11b can be slidably supported on the xy table 8 in the x-direction, while the other partial support plate 11b or 11a immovably, that is fixedly arranged on the xy table 8, which is not shown in detail.
  • a Nähgutklammer 12a and 12b is mounted, each having a mounted on the respective part support plate 11a and 11b partial support plate 13a and 13b, each associated with a clamping plate 14a and 14b is.
  • the clamping plates 14a, 14b are attached to double-armed bearing levers 15a, 15b.
  • a buttonhole cutting device 16 which consists essentially of an upper drivable cutting part 17 and a lower anvil 18.
  • the upper cutting part 17 has a cutting drive 19 which will 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 21 a to a drive rod 23 which is guided vertically displaceably in at least one arranged on the arm 1 guide bearing 24 ,
  • a knife head 25 is mounted, on the underside of a knife 26 shown in FIG. 3 is mounted replaceably.
  • the knife 26 has a straight 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 fixedly arranged in the base plate 2.
  • a carrier 30 is arranged, which is displaceable in the x direction. It is held by means of strips 31, 32 on the base body 29, wherein the strips 31, 32 are fastened by means of screws 33 on the base body 29.
  • an adjustment drive 34 is integrated, in which it is a two-sided, pneumatically acted piston-cylinder drive. Its cylinder 35 is formed by a bore extending in the x-direction in the base body 29, which is closed at its ends by means of lids 36.
  • a piston 37 is slidably disposed, at whose end faces in each case a line 38, 39 opens into the cylinder 35, which serves in each case for compressed air supply and for venting.
  • the carrier 30 is connected by means of a bolt 31 a with the piston 37, that is, depending on the application of the piston 37 with compressed air via the line 38 or 39 from the piston 37 in the x-direction.
  • the two displacement movements are limited by adjustable end stops 40, 41, which are formed by arranged in the base body 29 screws.
  • a first cutting block 42 and a second cutting block 43 by means of screws 44, so interchangeable, attached.
  • the second cutting block 43 when the second cutting block 43 is under the knife 26, then only the straight cutting part 27 engages with it; the eye cutting part 28 does not cut.
  • the second Cutting block 43 has a recess 43a in the region assigned to the eye-cutting part.
  • the loading of the adjusting drive 34 and thus the displacement of the carrier 30 in one of the two end positions, in which either the first cutting block 42 below the knife 26 or the second cutting block 43 is located below the knife 26, is carried out by a not shown compressed air source via an electromagnetically actuated multi-way valve 45th
  • 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 adjustment drive 34, the drive motor 5 of the arm shaft 4, not shown clamping drives for the Nähgutklammern 12 a , 12b and the cutting drive 19 are driven.
  • the control unit 46 has a storage part 47.
  • the one operating unit 48 is provided with an input keyboard 49 and a display 50.
  • FIGS. 8 and 9 The procedure results from FIGS. 8 and 9. After sewing an eyelet-buttonhole seam 51 in a fabric part 52, the fabric part 52 is transported into the cutting device 16 by means of the xy table 8 in the y-direction.
  • 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 mating surface, so that the straight cutting part 27 and the eye cutting part 28 intersect an eye buttonhole 53 having the length L 26 .
  • the knife 26 ' has a middle rectilinear cutting part 27 and at its two ends a respective eye cutting part 28 and 28'.
  • the cutting blocks 42 ', 43' are formed so that the first cutting block 42 'comes into cutting contact only with the straight cutting part 27 and the eye cutting part 28, while the second cutting block 43' is formed so that it only comes into cutting connection with the straight cutting part 27 and the eye cutting part 28 '.
  • This embodiment thus allows the generation of different in their position Augenknopflöchem.
  • the cutting drive 19 in the embodiment according to FIG. 12 is essentially formed by a multi-chamber cylinder 56, which is fastened by means of the joint 20 in the base plate 2.
  • a piston rod 57 is arranged, whose outer end is connected via the joint 22 with the lever 21.
  • a total of four chambers 58 to 61 separated by partitions 62, 63, 64 from each other, each sealed by the piston rod 57 to be penetrated.
  • the chambers 58 to 61 are thus - in relation to the length of the cylinder 56 - arranged one behind the other.
  • a piston 65, 66, 67, 68 is arranged, which is fixedly connected to the piston rod 57 and sealed relative to the cylinder 56.
  • the chambers 58, 59, 60, 61 with the pistons 65 to 68 thus form four spatially successively arranged, active linear drives.
  • the piston 65 in the first chamber 58 is designed to be acted upon on two sides, via lines 69, 70, that is, the piston rod can be acted upon in the ejection direction 71 or in the insertion direction 72, depending on the application.
  • the three further chambers 59, 60, 61 are acted upon by means of a common line 73 only in such a way that a force in the extension direction 71 is exerted on the piston rod 57.
  • the three lines 69, 70, 73 are acted upon by three multi-way valves 74, 75, 76, which can be controlled by the control unit 46 by means of the control unit 48.
  • a double-sided pneumatically actuated piston-cylinder drive 77 is 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 connected on the one hand by means of the joint 22 with the pivot lever 21 and on the other hand supported by means of the joint 20 on a force limiter 81.
  • the cylinder 78 is connected via a multi-way valve 82 and two lines 83, 84 which open on both sides of the piston 85 of the drive 77 in the cylinder 78.
  • the pivoting lever 21 is pivoted in such a way that the cutting drive 19 'carries out a cutting movement of the blade 26 or 26' or brings the blade 26, 26 'into its upper rest position returns.
  • the toggle lever mechanism 80 assumes its extended position, whereby a cutting movement is carried out, while when the line 84 is acted upon, the knife 26, 26 'is lifted back into its upper rest position.
  • a limitation of the force exerted on the pivot lever 21 and thus the knife 26 or 26 'force is effected by the force limiter 81.
  • This has a four-tier abutment 86, which is stationary, ie immovable, supported by a stationary part 87 in the base plate 2.
  • the stationary part 87 of the abutment 86 carries a resilient part 88, on which the toggle mechanism 80 is supported by means of the joint 20.
  • the fixed part 87 is of a frame-like construction and has four pneumatically actuated membrane cylinders 90, 91, 92, 93 as passive linear drives.
  • the resilient part 88 of the abutment 86 also has one above the other intermediate floors 94, wherein in each case an intermediate floor 94 is disposed above an intermediate bottom 89.
  • the membrane cylinders 90 to 93 are thus each arranged on an intermediate bottom 89 and below an intermediate bottom 94.
  • Each membrane cylinder 90 to 93 has an inner stop 96 below its membrane 95, that is, in its interior.
  • an outer stop 97 is attached in each case. The respective outer stop 97 can thus be moved vertically by means of the respective membrane 95.
  • each diaphragm cylinder can only perform a small stroke of, for example, one to two millimeters.
  • the membrane cylinders 91, 92, 93 are supplied via lines 98, 99, 100 via multi-way valves 101, 102, 103 with compressed air.
  • the diaphragm cylinder 90 is connected to the line 83, which acts on the drive 77.
  • an abutment is applied to the toggle mechanism 80 via the joint 20 Force of 25%, 50%, 75% or 100% of the maximum possible abutment force exercised. In turn, this limits the force exerted on the pivoting lever 21.
  • the magnitude of the forces exerted can be predetermined by a pressure regulator 104, which is likewise controlled via the operating unit 48.
  • a similar pressure regulator can of course also be provided in the embodiment of FIG. 12. Incidentally, in the embodiment according to FIG. 13 too, the actuation of the valves 82, 101, 102, 103 takes place via the operating unit 48.
  • the purpose of the power grading is to adapt the cutting device 16 to different cutting conditions, such as the hardness of the material, the type of material, the number of layers to be cut, but also the shape and / or size of the material to be cut Cut are affected.
  • a flexible cutting condition adjustable cutter 16 is provided in which the knives 26, 26 'and anvil 18 are protected from unnecessary wear by excessive cutting forces, thus significantly increasing operational readiness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (7)

  1. Machine à coudre les boutonnières,
    - avec une aiguille (7) pouvant être entraînée de façon montante et descendante,
    - avec au moins une pince pour pièce à coudre (12a, 12b) pouvant être déplacée dans une direction y,
    - avec un dispositif de découpe de boutonnière (16), qui
    - - est disposé dans la direction y derrière l'aiguille (7),
    - - comporte un couteau (26, 26'),
    - - comporte au moins un bloc de découpe (42, 43) concourant avec le couteau (26, 26'), et
    - - comporte un entraînement de découpe (19, 19') pour déplacer le couteau (26, 26') et le bloc de découpe (42, 43) l'un par rapport à l'autre avec une force de découpe variable, caractérisée en ce que
    - l'entraînement de découpe (19, 19') comporte plusieurs entraînements linéaires qui
    - - sont montés parallèlement les uns aux autres et
    - - peuvent être alimentés au choix de façon pneumatique.
  2. Machine à coudre les boutonnières selon la revendication 1, caractérisée en ce que les entraînements linéaires sont configurés comme cylindre à plusieurs chambres (56), du fait qu'un piston (65 à 68) est disposé dans chaque chambre (58 à 61), qui sont placés au niveau d'une tige de piston commune (57).
  3. Machine à coudre les boutonnières selon la revendication 2, caractérisé en ce que au moins une chambre (58) est munie d'un piston (65) pouvant être alimenté des deux côtés, et en ce que trois chambres (59 à 61) sont munies d'un piston (66 à 68) pouvant être alimenté en commun d'un côté dans le même sens de mouvement.
  4. Machine à coudre les boutonnières selon la revendication 1, caractérisée en ce que l'entraînement de découpe (19') comporte un entraînement de cylindre à piston (77) qui s'appuie contre les entraînements linéaires formés comme limiteurs de force (81).
  5. Machine à coudre les boutonnières selon la revendication 4, caractérisée en ce que le limiteur de force (81) comporte plusieurs cylindres à membrane (90 à 93) comme entraînements linéaires.
  6. Machine à coudre les boutonnières selon la revendication 1, caractérisée en ce que les entraînements linéaires peuvent être alimentés par l'intermédiaire de soupapes à plusieurs voies (74 à 76, 82, 101 à 103) qui peuvent être actionnées par une unité de commande centrale (48).
  7. Machine à coudre les boutonnières selon la revendication 1, caractérisée en ce que les entraînements linéaires sont réunis en une unité modulaire.
EP03010637A 2002-06-10 2003-05-13 Machine à coudre les boutonnières Expired - Lifetime EP1371770B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10225512 2002-06-10
DE10225512A DE10225512C1 (de) 2002-06-10 2002-06-10 Knopfloch-Nähmaschine

Publications (3)

Publication Number Publication Date
EP1371770A2 EP1371770A2 (fr) 2003-12-17
EP1371770A3 EP1371770A3 (fr) 2006-03-15
EP1371770B1 true EP1371770B1 (fr) 2007-07-11

Family

ID=7714648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010637A Expired - Lifetime EP1371770B1 (fr) 2002-06-10 2003-05-13 Machine à coudre les boutonnières

Country Status (6)

Country Link
US (1) US6684798B2 (fr)
EP (1) EP1371770B1 (fr)
JP (1) JP4528498B2 (fr)
CN (1) CN1468998A (fr)
AT (1) ATE366836T1 (fr)
DE (2) DE10225512C1 (fr)

Families Citing this family (13)

* 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
JP4296890B2 (ja) * 2003-09-24 2009-07-15 ブラザー工業株式会社 鳩目穴かがりミシンの布切断装置
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
JP4552141B2 (ja) * 2005-07-21 2010-09-29 ブラザー工業株式会社 工業用ミシン
JP2009005933A (ja) * 2007-06-28 2009-01-15 Brother Ind Ltd 穴かがり縫いミシン
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US6684798B2 (en) 2004-02-03
EP1371770A2 (fr) 2003-12-17
JP2004008804A (ja) 2004-01-15
EP1371770A3 (fr) 2006-03-15
ATE366836T1 (de) 2007-08-15
DE50307639D1 (de) 2007-08-23
US20030226486A1 (en) 2003-12-11
DE10225512C1 (de) 2003-07-17
JP4528498B2 (ja) 2010-08-18
CN1468998A (zh) 2004-01-21

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