EP1136610A1 - Steppmaschine mit variablen Abständen zwischen den Nähköpfen - Google Patents

Steppmaschine mit variablen Abständen zwischen den Nähköpfen Download PDF

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Publication number
EP1136610A1
EP1136610A1 EP00104573A EP00104573A EP1136610A1 EP 1136610 A1 EP1136610 A1 EP 1136610A1 EP 00104573 A EP00104573 A EP 00104573A EP 00104573 A EP00104573 A EP 00104573A EP 1136610 A1 EP1136610 A1 EP 1136610A1
Authority
EP
European Patent Office
Prior art keywords
carriages
stitcher
hook assembly
quilting machine
support
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
EP00104573A
Other languages
English (en)
French (fr)
Other versions
EP1136610B1 (de
Inventor
Roberto Resta
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.)
Resta SRL
Original Assignee
Resta SRL
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 Resta SRL filed Critical Resta SRL
Priority to EP20000104573 priority Critical patent/EP1136610B1/de
Priority to ES00104573T priority patent/ES2224937T3/es
Priority to DE2000612476 priority patent/DE60012476T2/de
Publication of EP1136610A1 publication Critical patent/EP1136610A1/de
Application granted granted Critical
Publication of EP1136610B1 publication Critical patent/EP1136610B1/de
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
    • D05B11/00—Machines for sewing quilts or mattresses

Definitions

  • the present invention relates to a quilting machine with variable-spacing stitchers.
  • a quilting machine comprises a cloth supporting carriage and a plurality of stitchers which quilt the cloth according to a preset pattern.
  • the cloth supporting carriage and the stitchers perform relative movements which allow the sewing needle to move on the cloth with two degrees of freedom in order to form a line of stitches that follows the intended path.
  • the stitchers are mounted on a frame which comprises a first beam which lies above the cloth and a second beam which is parallel to the first beam and lies below the cloth.
  • the first beam supports a guide for the sewing head of the stitcher, while the second beam supports a guide for the so-called hook assembly.
  • the aim of the present invention is therefore to provide a quilting machine without suffering the conventional drawbacks, i.e., which comprises a plurality of stitchers which can be actuated so that they operate independently of each other in order to trace converging and diverging lines of stitches.
  • a quilting machine which comprises a frame composed of a first beam arranged horizontally above a cloth to be quilted and a second beam arranged below said cloth, said beams being provided with respective guides for carriages for supporting a sewing head and, respectively, a hook assembly of at least two stitchers, one of which being provided with means for moving the sewing head and the hook assembly synchronously and along the same path and with the same orientation, characterized in that the carriages that support the sewing head and the hook assembly of a first stitcher support respective motor elements for a synchronous movement of the carriages that support the sewing head and the hook assembly of the second stitcher.
  • the reference numeral 1 designates a frame of a quilting machine, which is composed of two horizontal beams 2 and 3 which are mutually superimposed and are connected, at their opposite ends, by two respective vertical uprights 4 and 5.
  • the beams 2 and 3 and the uprights 4 and 5 enclose an opening 6 through which a cloth 7 to be quilted is fed.
  • the cloth 7 is stretched horizontally on a frame (not shown) which is movable in a longitudinal direction A at right angles to the frame 1.
  • Two mutually parallel cylindrical bars 8 and 9 are fixed to the ends of the upper beam 2 and are spaced from the beam.
  • the bars 8 and 9 form a guide along which carriages 10 and 11 are slideable along a transverse path B which is perpendicular to the path A; such carriages support sewing heads 12 and 13 of two stitchers, generally designated by the reference numerals 14 and 15.
  • the sliding of each carriage on the bars 8 and 9 is performed by two pairs of free rollers, the upper ones being designated by the reference numeral 16 and the lower ones being designated by the reference numeral 17.
  • the rollers 16 and 17 are provided with a groove along their peripheral region and tangentially engage above and below the bars 8 and 9.
  • the stitchers 14 and 15 comprise hook assemblies 18 and 19 which are actuated synchronously with the respective sewing heads 12 and 13.
  • the hook assemblies are mounted on carriages 20 and 21 which, thanks to upper slotted wheel pairs 22 and lower slotted wheel pairs 23, are slideable on two bars 24 and 25 which are fixed, by means of their opposite ends, to the lower beam 3, parallel to the upper parts 8 and 9.
  • the stitchers 14 and 15 are moved along the transverse path B above the cloth 7 by mechanically connecting the carriages 10 and 20 of the stitcher 14 to the respective carriages 11 and 21 of the stitcher 15 and synchronously actuating such carriages.
  • the carriages 11 and 21 are actuated by means of a flexible and inextensible belt 26, made for example of steel, whose ends are fixed to two L-shaped elements 27 and 28, the L-shaped element 27 being rigidly fixed to the carriage 11.
  • the other L-shaped element 28 is provided with a threaded stem 29 which protrudes toward the L-shaped element 27 and is guided through two brackets 30 and 31 which are fixed to the carriage 21.
  • a nut 32 with a respective lock nut are screwed onto the end of the stem 29 that protrudes beyond the bracket 30, so as to provide a screw-type expander which tensions the belt 7 by acting on the L-shaped element 28.
  • the belt 7 is wound in a closed loop around four guiding pulleys 33, 34, 35 and 36 and a driving pulley 37.
  • the guiding pulleys 33-36 are arranged at the corners of an imaginary rectangle at the opposite ends of the beams 2 and 3.
  • the driving pulley 37 is supported on the upright 3 between the pulleys 34 and 36, so that the belt 26 runs along a zigzag path with four parallel, superimposed and co-planar portions 38, 39, 40, 41, the portions 38 and 40 thereof moving in the same direction, which is opposite to the direction of the portions 39 and 41.
  • the carriage 21 of the stitcher 15 is fixed to the portion 40 by a clamp 42, so that the two carriages 11 and 21 move correspondingly in the direction of actuation of the belt 26.
  • the pulley 37 is provided with a ring gear 43 with which there meshes a pinion 44 of an electric motor 45 which is mounted on a bracket (not shown) which cantilevers out from the frame 1.
  • Motion is transmitted from the stitcher 15 to the stitcher 14 by two reversible electric motors 46 and 47 which are mounted on the carriages 11 and 21 and whose shafts are constituted by threaded rods 48 and 49 having the same pitch, extending between the portions 38, 39 and 40, 41 of the belt 26, and being parallel to the bars 8, 9 and 24, 25.
  • the threaded rods are engaged in female threads 50, 51 which are fixed to the carriages 10, 20 of the stitcher 14.
  • the motors 46, 47 are controlled so as to move with the same angular speed in the same direction.
  • the stitchers 14 and 15 can be moved mutually closer or further apart during their relative movement with respect to the cloth and can form two lines of stitches which follow any convergent or divergent path with respect to each other.
  • the materials employed, as well as the dimensions, may be any according to requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP20000104573 2000-03-14 2000-03-14 Steppmaschine mit variablen Abständen zwischen den Nähköpfen Expired - Lifetime EP1136610B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20000104573 EP1136610B1 (de) 2000-03-14 2000-03-14 Steppmaschine mit variablen Abständen zwischen den Nähköpfen
ES00104573T ES2224937T3 (es) 2000-03-14 2000-03-14 Maquina de acolchado con puntadas de separacion variable.
DE2000612476 DE60012476T2 (de) 2000-03-14 2000-03-14 Steppmaschine mit variablen Abständen zwischen den Nähköpfen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20000104573 EP1136610B1 (de) 2000-03-14 2000-03-14 Steppmaschine mit variablen Abständen zwischen den Nähköpfen

Publications (2)

Publication Number Publication Date
EP1136610A1 true EP1136610A1 (de) 2001-09-26
EP1136610B1 EP1136610B1 (de) 2004-07-28

Family

ID=8168019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000104573 Expired - Lifetime EP1136610B1 (de) 2000-03-14 2000-03-14 Steppmaschine mit variablen Abständen zwischen den Nähköpfen

Country Status (3)

Country Link
EP (1) EP1136610B1 (de)
DE (1) DE60012476T2 (de)
ES (1) ES2224937T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104155913A (zh) * 2014-08-22 2014-11-19 苏州市正步机器制造有限公司 绗缝机双轴同步控制方法及其系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089849A (en) * 1980-12-18 1982-06-30 Texpa Arbter Maschbau Gmbh Apparatus for machining two parallel edges of a web of material
US5287820A (en) * 1991-05-02 1994-02-22 Nahmaschinenfabrik Emil Stutznacker Gmbh & Co., Kg Movable and relatively positionable sewing units for sewing stationary material
EP0931867A2 (de) * 1998-01-23 1999-07-28 Resta S.R.L. Steppmaschine mit mittels elektrischer Linearmotoren angetriebenen Nähköpfen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089849A (en) * 1980-12-18 1982-06-30 Texpa Arbter Maschbau Gmbh Apparatus for machining two parallel edges of a web of material
US5287820A (en) * 1991-05-02 1994-02-22 Nahmaschinenfabrik Emil Stutznacker Gmbh & Co., Kg Movable and relatively positionable sewing units for sewing stationary material
EP0931867A2 (de) * 1998-01-23 1999-07-28 Resta S.R.L. Steppmaschine mit mittels elektrischer Linearmotoren angetriebenen Nähköpfen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104155913A (zh) * 2014-08-22 2014-11-19 苏州市正步机器制造有限公司 绗缝机双轴同步控制方法及其系统

Also Published As

Publication number Publication date
DE60012476T2 (de) 2005-07-28
DE60012476D1 (de) 2004-09-02
EP1136610B1 (de) 2004-07-28
ES2224937T3 (es) 2005-03-16

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