EP1472399A1 - Dispositif et procede d'application de paillettes sur des tissus dans une machine a coudre, et machine a coudre a aiguilles multiples - Google Patents

Dispositif et procede d'application de paillettes sur des tissus dans une machine a coudre, et machine a coudre a aiguilles multiples

Info

Publication number
EP1472399A1
EP1472399A1 EP03701637A EP03701637A EP1472399A1 EP 1472399 A1 EP1472399 A1 EP 1472399A1 EP 03701637 A EP03701637 A EP 03701637A EP 03701637 A EP03701637 A EP 03701637A EP 1472399 A1 EP1472399 A1 EP 1472399A1
Authority
EP
European Patent Office
Prior art keywords
needle
strip
paillettes
textile material
paillette
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Withdrawn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
EP03701637A
Other languages
German (de)
English (en)
Inventor
Giannino Landoni
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.)
Meca SpA
Original Assignee
Meca SpA
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 Meca SpA filed Critical Meca SpA
Publication of EP1472399A1 publication Critical patent/EP1472399A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B11/00—Machines for sewing quilts or mattresses
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C7/00—Special-purpose or automatic embroidering machines
    • D05C7/08—Special-purpose or automatic embroidering machines for attaching cords, tapes, bands, or the like
    • 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
    • D05D2303/12—Rigid objects
    • 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 present invention concerns a device to apply paillettes or strass on simple or padded fabrics.
  • the invention also concerns the method to apply paillettes or strass on fabrics, and the machine which adopts said device and method.
  • the invention is applied in the textile field and refers to the automatic application, when stitches are made which achieve a desired design or ornamental pattern, of paillettes or strass of any type, shape, size and pitch, on simple, multi-layer or padded fabrics, fed continuously from rolls .
  • the invention is preferentially, though not exclusively, applied on multi-needle quilting machines, both of the type which make knotted point and chain point stitches.
  • the present invention is characterized in that it has at least one support element on which are mounted, at regular intervals, a plurality of devices to feed and cut the paillettes, each of which devices is substantially arranged opposite a relative needle of the sewing machine.
  • the state of the art includes the use of devices to automatically apply paillettes or strass on single pieces or on f brics.
  • Such devices work on individual garments or on pieces of fabric of a limited length, drummed on suitable frames with a discontinuous working pattern and limited productivity.
  • the ornamental patterns made by such devices are isolated, very distant from each other and discontinuous; the maximum speed at which they are made is in the order of 150/200 stitches a minute.
  • the purpose of the invention is to provide a device, and the relative method, to apply on fabrics paillettes or strass of any type, shape, size or pitch, suitable to be applied on a sewing machine, particularly on a multi-needle sewing machine, with the purpose of working fabrics fed continuously with speeds in the range of 600-700 stitches a minute .
  • a further purpose is to achieve a sewing machine with the device mentioned above, suitable to work continuously simple and padded fabrics, obtaining any ornamental pattern consisting of stitches and applique works of paillettes, strass or similar, by means of an electronic control.
  • a sewing machine on which the device according to the invention is applied comprises at least a needle-bearing bar, on which a plurality of needles are mounted aligned and at suitable intervals.
  • the needle-bearing bar is equipped with alternating ascending-descending movements to take every needle to cooperate with a mating lower sewing element, consisting of a shuttle, a rotary crochet or a mobile hook, also equipped with alternating movement mating with the movement of the needle-bearing bar.
  • the sewing machine according to the invention also comprises at least a fixed cross-piece which supports the command members of the needle-bearing bars .
  • a bar which supports, in correspondence with specific, selected needles, a mating plurality of devices able to make an application of paillettes on the fabric according to a desired ornamental pattern, managed by the command computer of the sewing machine .
  • Each of said devices consists at least of an assembly to feed the paillettes and an assembly to advance and cut the paillettes .
  • the assembly to advance and cut the paillettes comprises an element to draw the strip feeding the paillettes consisting, in a preferential embodiment, of a wheel comprising on the outside means to advance the strip, for example spikes or similar.
  • the pressure element is of the oscillating lever type.
  • the pressure element has a seating in which the drawing wheel can slide, and can alternately assume two positions, a working position when one free end is thrust upwards and its sliding seating adheres to the outer circumference of the wheel, and a position of non-interference wherein it detaches from the wheel and allows to change, or insert, the strip which feeds the paillettes.
  • the guide element has one end contiguous to the lower part of the pressure element and the other end very near the corresponding needle and a few millimeters above the fabric being worked.
  • a positioning assembly mounted, comprising at least a pressure element associated with elastic means to selectively act in cooperation with said wheel and to determine a controlled step-wise unwinding of the strip of paillettes .
  • a cutting assembly which can be selectively activated to cut the paillettes with respect to the feed strip.
  • the cutting assembly consists of a shears comprising a pair of blades which can be selectively activated.
  • the assembly to feed the paillettes comprises at least a feed strip associated with unwinding means.
  • the feed strip is unwound and is engaged by the advance means of the drawing wheel, which draw the strip with advance impulses controlled by the positioning assembly.
  • the strip slides on the guide element and passes inside the cutting assembly, arriving in proximity with the corresponding needle.
  • the first paillette on the strip is presented with its hole exactly under the corresponding needle which, as it descends, enters into said hole.
  • the cutting assembly is driven, causing the paillette to be cut, which is attached by the needle on the fabric according to the orders given by the computer.
  • the needle begins its normal sewing again, following the ornamental pattern.
  • the application of the paillettes can be programmed independently needle by needle, thus considerably extending the possibilities of making very particular ornamental patterns which would be impossible on conventional machines .
  • the sewing machine which has the device according to the invention can be used as a normal sewing machine, for example a multi-needle quilting machine, excluding the function of said device; or as an embroidery machine to apply paillettes on simple or padded fabrics fed continuously; or again as a machine which simultaneously makes both quilting and the application of paillettes or similar, thus obtaining mixed ornamental patterns with innovative and previously unseen characteristics.
  • a normal sewing machine for example a multi-needle quilting machine, excluding the function of said device; or as an embroidery machine to apply paillettes on simple or padded fabrics fed continuously; or again as a machine which simultaneously makes both quilting and the application of paillettes or similar, thus obtaining mixed ornamental patterns with innovative and previously unseen characteristics.
  • Fig. 1 is a schematic view of an electronically commanded multi-needle quilting machine of the type able to comprise a device to apply paillettes according to the invention
  • Fig. 2 is a schematic lateral prospective view of the device to apply paillettes according to the invention
  • Figs. 3a-3d show some examples of ornamental patterns which can be obtained with the machine according to the invention .
  • Fig. 1 shows an electronically commanded multi-needle quilting machine 10 the general type of which is in itself substantially conventional.
  • the quilting machine 10 comprises, as essential parts, an inlet assembly 10a, a sewing assembly 10b and an outlet assembly 10c.
  • the inlet assembly 10a is used to feed the textile material 11 which is to be worked.
  • the inlet assembly 10a is managed and controlled by a command software and is therefore able to move the textile material 11 fed in any direction whatsoever, backwards-forwards or left-right, in order to make any pattern, even the most complex.
  • the sewing assembly 10b comprises upper sewing members 12 and lower sewing members 15 of a conventional type.
  • the upper sewing members 12 consist, in this case, of two needle-bearing bars 13, respectively 13a and 13b, parallel to each other and on which respective needles 14 are mounted, aligned with each other, each one cooperating with a respective thread 16, called the needle thread, fed from respective cones 116 arranged in the upper part of the machine 10 or in front of it.
  • the needle-bearing bars 13 have seatings 17 to position the needles associated with means 18 to clamp the needles 14 in position. In this case, that is, for the application of paillettes, only the front needle-bearing bar 13a is used, whereas the rear needle-bearing bar 13b is used for normal quilting.
  • Fig. 2 shows only one needle 14, it being obvious that according to the type of sewing to be done all the seatings 17 can house a relative needle 14.
  • the needle-bearing bars 13a and 13b are equipped with alternating ascending-descending movement, to take the relative needles 14 to cooperate with the respective lower sewing members 15, consisting in conventional fashion of shuttles, rotary crochets or alternately mobile hooks.
  • the cooperation between the sewing members 14 and 15 determines the simultaneous formation on the textile material 11 of a plurality of stitches 19 which, according to the movement imparted to the textile material 11, make desired ornamental patterns to obtain a quilted or embroidered article which is collected by the outlet assembly 10c.
  • the multi- needle sewing machine 10 is equipped with a cross-piece 20 which supports the command members of the needle-bearing bars 13.
  • a transverse bar 22 is attached to said cross-piece 20 by means of supporting elements 21; a plurality of devices 50 for the automatic application of paillettes 23 on the textile material 11 are mounted on the transverse bar 22 at regular intervals corresponding to the selected needles 14.
  • Each of the devices 50 comprises an assembly 51 to feed the paillettes 23 and an assembly 30 to advance and cut the paillettes 23.
  • the feed assembly 51 comprises a substantially vertical support 24 at the upper part of which an arm 25 is attached, bearing a transverse pin 26 on which a bobbin 27 rotates which feeds the strip 28 of the paillettes.
  • the assembly 30 to advance and cut the paillettes 23 is attached to the lower part of said vertical support 24, and consists of a vertical support plate 29 arranged substantially perpendicular to the needle-bearing bar 13a.
  • a rotary pneumatic actuator 31 On the support plate 29 are attached a rotary pneumatic actuator 31, a linear pneumatic cylinder 37 and a spring- type positioner 36, the shaft 31a of the rotary pneumatic actuator 31 being substantially parallel to the needle- bearing bar 13a and passing through a suitable hole made in the support plate 29.
  • a drawing wheel 32 is mounted on the shaft 31a, on the side opposite the rotary actuator 31 with respect to the support plate 29; on its outer circumference the drawing wheel 32 has a series of equidistant spikes 33, the diameter and pitch of which correspond to the diameter of the hole and the pitch of the paillettes 23 being used, in their feed strip 28.
  • an oscillating semicircular pressure element 35 which has a concave semicircular surface with a radius mating with, advantageously equal to, that of the wheel 32.
  • a conveyor guide 34 shaped like a flattened tube with an inner width substantially corresponding to the width of the strip 28 feeding the paillettes 23; the feed strip 28 slides inside the guide 34.
  • the semi-circular pressure element 35 has its lower end pivoted to said support plate 29 and, in its concave semicircular surface, has a groove inside which the spikes 33 of said wheel 32 slide.
  • the semi-circular pressure element 35 can also assume two positions: a working position, when its free end is thrust upwards and its concave surface adheres to the outer circumference of said wheel 32, keeping the strip 28 also adherent thereto; and a position to change, or insert, the feed strip 28 when the free end of the pressure element 35 is thrust downwards and its concave surface is detached from the outer circumference of the wheel 32, uncovering the spikes 33 and hence allowing to remove or insert the strip 28 engaged thereon.
  • the conveyor guide 34 is attached to the support plate 29 in such a manner that one end thereof is contiguous with the lower end, pivoted, of the pressure element 35 and the other end is very near the corresponding needle 14 and a few millimeters above the textile material 11.
  • a spring-type positioner 36 which is attached to the support plate 29 and has a roller 136 charged by a spring 236.
  • the roller 136 rests, with a slight pressure supplied by the spring 236, on the outer circumference of the wheel 32, inserting itself exactly between two adjacent spikes 33 so as to stop said wheel 32 step-wise, inserting itself with every step between spike and spike .
  • the rear ends of the platelets 38 and 39, below the wheel 32, are attached to each other by a pin 40 so that the two platelets, being slightly open, are spread wide; their front ends, near the corresponding needle 14, are bent at an angle of 90° one towards the other and sharpened so as to form two blades 41 and 42.
  • the lower platelet 39 is attached to the lower part of the support plate 29, while there is an aperture 43 made in the upper platelet 38, through which said conveyor guide 34 passes, which has a width of less than that of the platelets 38 and 39.
  • the conveyor guide 34 which in the rear part is higher than the upper platelet 38, passes through the aperture 43 so that its front end finds itself between the platelets 38, 39 and very near the blades 41 and 42.
  • each of the platelets 38, 39 two corresponding holes are made, through which a vertical tie bar 44 passes whose lower end is attached to said lower platelet 39 and on whose upper end an S-shaped lever 45 is hinged.
  • the rod of the tie bar 44 has a shape configured so as to allow said conveyor guide 34 to pass inside.
  • the strip 28 which feeds the paillettes unwinds from the bobbin 27 which rotates on the transverse pin 26 solid with the arm 25.
  • the strip 28 slides downwards, passes over an intermediate guide wheel 46, is attached by the spikes 33 of the wheel 32 driven by the rotary pneumatic actuator 31.
  • the spikes 33 slide in the groove made in the concave surface of the pressure element 35, which keeps the strip 28 adherent to the wheel 32, and draw the strip 28 with a step-wise movement controlled by the roller 136 of the positioner 36.
  • the strip 28 enters the rear part of the conveyor guide 34, slides inside and, passing between the blades 41 and 42, arrives in proximity with the corresponding needle 14.
  • a second electro valve (not shown in the drawings) sends air to the linear pneumatic cylinder 37, the rod of which, as it extends, presses the free end of the lever 45, causing the blades 41, 42 to come together and therefore cut the paillette 23.
  • the paillette 23 is thus attached by the needle 14 onto the textile material 11, for example with three stitches at 120° or with other types of stitches, linear or superimposed according to the orders given by the computer, after which the needle 14 starts its normal sewing again, following the ornamental pattern.
  • FIGs. 3a-3d Some examples of the possible types of applications of paillettes 23 on the textile material 11 are shown in Figs. 3a-3d.
  • the rotary pneumatic actuator 31 and the linear pneumatic cylinder 37 can be replaced by any other rotary or linear actuator which performs the same or analogous function, such as electric motors, rotary or linear electromagnetic actuators, rotary or linear hydraulic actuators, actuators which command eccentrics, etc.
  • the cutter can also be replaced by any other cutting member such as scissors, nailcutters, blades, punches, ultrasound or laser cutting, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

L'invention concerne un dispositif (50) et un procédé d'application de paillettes (23), de strass ou d'un article analogue dans une machine à coudre (10) pouvant réaliser des coutures (19) sur un matériau textile (11) alimenté en continu. La machine à coudre (10) comprend des éléments supérieurs de couture (12) constitués d'une tige porteuse d'aiguille (13a), mobile selon un mouvement alternatif et pouvant supporter plusieurs aiguilles (14), et des éléments de couture inférieurs (15). Le procédé consiste à alimenter une bande (28) de paillettes (23) à travers le dispositif (50) agencée en correspondance avec au moins une des aiguilles (14), à entraîner pas à pas au moins un élément de traction (32) sur la bande (28), de manière couplée au mouvement de descente de l'aiguille (14), de façon à positionner une paillette (23) en dessous de l'aiguille (14) en position d'être cousue, et d'entraîner un assemblage de découpe (40, 41) afin de couper la paillette (23) de la bande (28), lorsque le bout de l'aiguille (14) atteint la paillette (23), provoquant ainsi la couture de la paillette sur le matériau textile (11).
EP03701637A 2002-01-29 2003-01-28 Dispositif et procede d'application de paillettes sur des tissus dans une machine a coudre, et machine a coudre a aiguilles multiples Withdrawn EP1472399A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITUD20020018 ITUD20020018A1 (it) 2002-01-29 2002-01-29 Dispositivo e procedimento per l'applicazione di paillettes su tessuti in una macchina cucitrice, e macchina di cucitura multiaghi comprende
ITUD20020018U 2002-01-29
PCT/IB2003/000236 WO2003064749A1 (fr) 2002-01-29 2003-01-28 Dispositif et procede d'application de paillettes sur des tissus dans une machine a coudre, et machine a coudre a aiguilles multiples

Publications (1)

Publication Number Publication Date
EP1472399A1 true EP1472399A1 (fr) 2004-11-03

Family

ID=27639195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03701637A Withdrawn EP1472399A1 (fr) 2002-01-29 2003-01-28 Dispositif et procede d'application de paillettes sur des tissus dans une machine a coudre, et machine a coudre a aiguilles multiples

Country Status (3)

Country Link
EP (1) EP1472399A1 (fr)
IT (1) ITUD20020018A1 (fr)
WO (1) WO2003064749A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005052571A (ja) 2003-08-07 2005-03-03 Tokai Ind Sewing Mach Co Ltd シークイン縫着装置
JP2007222188A (ja) * 2004-03-29 2007-09-06 Tokai Ind Sewing Mach Co Ltd シークイン送り装置
WO2007080608A1 (fr) * 2006-01-11 2007-07-19 Meca Spa Dispositif d'application de rubans ou de bandes, procede d'application correspondant et machine a coudre multi-aiguille comportant ledit dispositif d'application
ITMI20121456A1 (it) * 2012-08-30 2014-03-01 Caleffi Spa Metodo per trapuntare un articolo di arredo e relativo articolo di arredo trapuntato.
CN105420955A (zh) * 2015-12-28 2016-03-23 常熟市古里镇淼泉利达机械厂 一种多功能连续缝边装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848253A (en) * 1987-08-21 1989-07-18 Tokai Industrial Sewing Machine Co., Ltd. Embroidery machine for sewing spangles on fabrics
JPH0213495A (ja) * 1988-06-30 1990-01-17 Tokai Ind Sewing Mach Co Ltd スパンコール縫いミシンのスパンコール供給装置
US5562057A (en) * 1992-05-11 1996-10-08 Lenson; Harry Dish-shaped sequin application apparatus and method for shuttle embroidery machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03064749A1 *

Also Published As

Publication number Publication date
ITUD20020018A1 (it) 2003-07-29
WO2003064749A1 (fr) 2003-08-07

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