[go: up one dir, main page]

WO2009116110A1 - Dispositif et procédé permettant d’aplanir et d’identifier les extrémités d’un article textile, en particulier d’une chaussette - Google Patents

Dispositif et procédé permettant d’aplanir et d’identifier les extrémités d’un article textile, en particulier d’une chaussette Download PDF

Info

Publication number
WO2009116110A1
WO2009116110A1 PCT/IT2009/000098 IT2009000098W WO2009116110A1 WO 2009116110 A1 WO2009116110 A1 WO 2009116110A1 IT 2009000098 W IT2009000098 W IT 2009000098W WO 2009116110 A1 WO2009116110 A1 WO 2009116110A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
articles
path
article
textile
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.)
Ceased
Application number
PCT/IT2009/000098
Other languages
English (en)
Inventor
Antonio Magni
Nerino Grassi
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.)
Golden Lady Co SpA
Original Assignee
Golden Lady Co 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 Golden Lady Co SpA filed Critical Golden Lady Co SpA
Publication of WO2009116110A1 publication Critical patent/WO2009116110A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B23/00—Sewing apparatus or machines not otherwise provided for
    • D05B23/007—Sewing units for assembling parts of knitted panties or closing the stocking toe part
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H5/00—Seaming textile materials

Definitions

  • the present invention relates to a device for flattening and identifying the ends of a tubular knitted article, or a textile article in general, and more particularly of a sock.
  • the invention also relates to a method for flattening and identifying the ends of an article of this type.
  • the tubular articles knitted on the knitting machine are discharged with the open toe and collected in a basket or other similar accumulation system, where usually the articles produced by several textile machines are collected, for examples through a pneumatic transport system.
  • the single articles are taken from the basket and delivered to sewing or linking machines. These machines perform the closing of the toe of the socks.
  • Devices for handling tubular articles for example for flattening the toe and/or for identifying the toe relative to the edge are disclosed in: WO-A- 2007/135702, WO-A-2007/138630, WO-A-2007/020668, WO-A-2006/061870,
  • WO-A-2007/000782 discloses a device particularly suitable for flattening the end of a tubular article, in particular a sock, in order to prepare it for the subsequent sewing.
  • This device includes a path for the textile article, which extends across a variable cross section, defined by a member movable between at least a first position of maximum cross section and a second position of reduced cross section. In this second position of the movable member, the cross section takes a narrow shape, which is elongated transversally with respect to the direction of feed of the articles along said path.
  • the known devices are suitable to perform only one of the various operations necessary for preparing the tubular article for the sewing and, in order to perform more operations, it is necessary to arrange more devices in series.
  • the invention provides a particularly efficient and compact device for performing the flattening and the identification of the orientation of the textile article, for example and in particular a sock, in order to direct it subsequently to the sewing operations or to other operations which require a given orientation of the article.
  • a sock a particularly efficient and compact device for performing the flattening and the identification of the orientation of the textile article, for example and in particular a sock, in order to direct it subsequently to the sewing operations or to other operations which require a given orientation of the article.
  • reference will be often made to the need of orienting tubular knitted articles, open at the toe, in order subse- quently to perform the sewing thereof on the correct end.
  • similar problems of orientation could occur also for example for finished articles, i.e. for articles in which the toe is already sewn.
  • the invention provides for combining the path, in which the variable cross section is provided, for performing the flattening of the article, together with a discriminating device in order to distinguish, i.e. to identify the end of the article, which is moving along the path.
  • a discriminating device in order to distinguish, i.e. to identify the end of the article, which is moving along the path.
  • the invention relates to a method for flat- tening and identifying the orientation of a textile article comprising a first end and a second end, different from each other, comprising the steps of:
  • figure 1 shows an axonometric view of the device according to the invention, partially sectioned
  • figure 2 shows an axonometric view of a machine incorporating two devices according to the invention, which are arranged adjacent to a single common conveyor
  • figure 3 shows a detail of the engaging system for engaging the articles at the entry of the device
  • figures from 4A to 4G show an operative sequence of the device according to the invention in a section according to a vertical plane
  • figure 5 shows a diagram relating to the discrimination algorithm
  • figures from 6A to 6D show an operative sequence in the case of not reading of the end of the article.
  • Figure 2 shows a machine, indicated as a whole with the number 1 , to which two devices are associated indicated with number 3 and positioned opposite to each other at the sides of a conveyor 5.
  • the devices 3 are substan- tially identical or symmetrical to each other, one of them is illustrated in detail in figure 1 and its operative sequence is schematically represented in the series of figures from 4A to 4G.
  • each of the two devices 3 of figure 2 receives, in the manner which will be described hereunder, single textile articles, for examples socks, from a container below, for example a rotating basket, not shown in the figure, and from which the single articles can be picked up in a known manner, for example through a gripper which grips single articles from the basket and brings them to the height of a suction duct associated, by means of a branch, to the two devices 3.
  • single textile articles for examples socks
  • the single articles which are flattened and whose orienta- tion is identified through alternatively one or the other of the devices 3, are placed on the conveyor 5 which, moving according to the arrow f5, transfers them towards a downstream machine, not shown, which provides for engaging one of the two ends of each article in order to perform subsequent operations, for example the sewing of the toe.
  • the downstream machine is not described and is known per se. As it has been observed above, actually the operations performed on articles handled by the machine 1 can be various and not necessary sewing operations. Therefore, the nature and the structure of the downstream machine do not have relevance in the present description.
  • FIG 1 wherein a single device 3 is shown in an axonometric view with a flank removed in order to show the internal element thereof, comprises (see also the sections of figures from 4A to 4G) a path 11 for the articles which are sucked through a suction duct 13 connected to a pneumatic conveyor 13A represented with a dotted line in figure 1 , which could be fed directly from the basket or other container mentioned above.
  • a double grid 15 is ar- ranged, shown in greater detail in the axonometric view of figure 3.
  • To the two V-inclined walls forming the double grid 15 are respectively associated two punches 17A, 17B 1 controlled by actuators 19A, 19B to move according to the double arrow f17.
  • the punches 17A, 17B can penetrate the walls of the double grid 15 thanks to the presence of windows 21 A and 21 B.
  • the number 23 indicates a photocell associated to the double grid 15, in order to verify the presence of an article close to the double grid 15 and therefore to give the consent for the actua- tion of the punches 17A 1 17B.
  • the suction duct 13 is in connection with the feeding path 11 for feeding the articles across the device 3.
  • the connection between the entry suction duct 13 and the path 11 is provided at correspondence of a passage area 25, which has a variable cross section for the purposes described above.
  • the variation in the cross section is obtained by means of a reducing element 27 for reducing the passage cross-section.
  • the element 27 is engaged to a cylinder - piston actuator 29, which causes the lifting and lowering movement thereof according to the double arrow f27 according to the sequence which will be described with references to the figures 4A - 4F.
  • Downstream to the passage area 25 the path 11 of the articles extends across a transit area with a variable cross section.
  • this area in defined by a fixed lower block 31 and by a movable member 33 provided with a lifting and lowering movement according to the double arrow f33.
  • the movement is controlled by a cylinder-piston actuator 35 or other actuator suitable for this purpose, for example a linear motor, an electrical gear motor or the like.
  • a pair of rollers 37, 39 is arranged, forming part of a feeding system for feeding the articles through the device.
  • the lower roller 39 is mounted idle on a support 41 vertically movable according to the double arrow f41 , whose movement is controlled by a cylinder - piston actuator 43 or other actuator suitable for this purpose.
  • the actuator 43 can be fixed on a bracket 45 integral with the frame of the machine 1 and also supporting advantageously the cylinder - piston actuator 29.
  • the upper roller 37 can be advantageously a roller motorized through a motor not shown.
  • the roller 37 can be coated with a material with high friction coefficient, for example rubber or the like.
  • the surface of the movable member 33 facing the pair of rollers 37, 39, indicated with the number 33A, is advantageously inclined, similarly to the surface 31 A of the fixed block 31 , that is also facing the roller 37, 39.
  • the surfaces 33A and 31A define a facilitation and a guide for the articles which must enter in the variable cross section defined by the block 31 and by the movable element or member 33.
  • the device 3 Downstream to the variable section 31, 33, the device 3 has an exit 51 provided with an opening and closing door 53 (see figures 4A - 4F) actuated by an actuator, for example a cylinder - piston actuator 55.
  • variable cross section defined by the block 31 and by the movable member 33, and the aperture 51 a suction mouth 57 is provided, in fluid connection with a suction tube 59, through which an aspiration can be generated for the reasons and the purposes described below.
  • a discriminating device 33 is positioned, i.e. an identifying device suitable for identifying which of the two ends, different in shape from each other, passes in the cross section.
  • this device is an optical reader.
  • the optical reader comprises an array of photocells, advantageously aligned according to a direction preferably nearly orthogonal to the feeding direction of the articles.
  • the photocells comprise emitters 61 E and re- DCvers 61 R arranged according to a linear matrix substantially orthogonal to the direction of feeding of the articles across the device.
  • the receivers 61 R are in the lower part, carried by the fixed block 31 , whilst the emitters 61 E are arranged in the upper part, without however exclud- ing an inverted arrangement.
  • said emitters 61 E are mounted on a portion 60 of the device 3 and in front of each emitter 61 E the movable member 33 has a corresponding hole 61 F which allows the passage of the light beam generated by the corresponding emitter and intercepted by the article or detected by the corresponding receiver 61 R.
  • the emitters 61 E can be integral with the movable element or member 33, although this would require an electric connection by means of cables subjected to cyclical deflections during the functioning of the device.
  • FIG. 4A in the initial step for introducing an article M inside the device 3 the aspiration is activated (arrow A) by means of the duct or tube 13B.
  • an article M for example a sock or the like coming from a basket below, is aspirated and stops against the grid wall 15.
  • the stems 17A, 17B whose closure controlled by the ac- tuators 19A, 19B occurs when the photocell 23 has detected the presence of the article M.
  • the rollers 37, 39 are in open arrangement, i.e. they are spaced from one another so as to allow easy passage of the article M along the feeding path 11 and in particular its entry inside the variable cross section de- fined by the block 31 and by the movable member 33. This latter is temporarily in a raised position, i.e. in the position, which defines the cross section of maximum dimension.
  • the exit 51 is closed by the door 53.
  • the end E may also enter by a greater or lower entity inside the suction duct or tube 59.
  • the rollers 37 and 39 are still in open position and analogously the element 31, 33 are in open position so as to define a cross section of maximum dimension.
  • the rollers 37, 39 are moved towards each other, so as to engage mechanically the article M that can be released by the pins or stems 17A, 17B without being removed due to aspiration through the duct 59.
  • the article is fed by rotating the motorized roller 37 until the end E1 , previously engaged by the pins 17A, 17B, is in front of a sensor, a photocell or other, indicated with the number 70 in figure 4D, i.e. in a position directly upwards with respect to the rollers 37, 39.
  • the motorized roller 37 is stopped.
  • the distance between the photo- cell 70 and the array of photocells 61 E, 61 R is greater than the minimum possible length of the articles M that can be handled through the device 3. This assures that when the end E1 is identified by the photocell or other detector 70, the opposite end E is surely downstream to the array of photocells 61 E, 61 R. At this point the movable member 33 is lowered so as to assume the po- sition of figure 4E. The cross section 11 assumes the minimum dimension, with a narrow and long shape. In this way the article M, which will be returned back by inverting its movement in the manner, which will be described below, is flattened in the area of the end E.
  • the height H of the cross section 11 is dimensioned (according to the thickness of the fabric which forms the article M) so as to flatten this latter, whilst the transversal dimension, i.e. orthogonal to the plane of figure 4E, is such as to allow the enlargement of the article M for all its transversal dimension.
  • the mo- torized roller 37 is put again in movement in a direction opposite to that through which the article M has been fed inside the section 11. In this way the article M comes back (arrow f M in figure 4E) remaining stretched thanks to the suction (arrow A 1 ) through the duct 13.
  • the backward movement of the article M continues until its end E have been passed in front of the array of photocells 61 E, 61 R, assuming the position indicated with a dashed line in figure 4E.
  • the photocells 61 E, 61 R identify the profile of the end E and determine whether it corresponds to the one or the other of the two ends, with different shape from each other, of the article M.
  • one of the two ends is the elastic edge, which has a substantially rectilinear shape, and the other is the toe, which has a curve shape.
  • a suitable processing application performed by the control unit of the machine 1 determines whether the end E is the toe or the elastic edge, based upon the profile identified by the photocells 61 E, 61 R, for example by using one of the methods disclosed in WO-A-2007/135702, the content of which is integrally incorporated in the present description.
  • a different and more accurate method for identifying and discriminating the ends of the article M will be described in greater detail below.
  • the machine on which the device 3 is mounted is suitable to know how the article is oriented, i.e. if the end E is the toe or the edge of the sock or other article.
  • the article M can therefore been extracted from the device and positioned on the conveyor 5.
  • the aspiration A' by means of the duct 13A and the aspiration A" by means of the tube or duct 59 are actuated.
  • the movable member 33 is raised again, whilst the rollers 37 and 39 still grip the article M.
  • the direction of rotation of the roller 37 is reversed again so as to start the feeding of the article M according to the arrow fM towards the exit 51.
  • the above-described cycle can be performed both by one or the other of the two devices 3 associated to the conveyor 5.
  • the articles M are fed alternatively to one or to the other of the devices 3, so as to have a greater productivity of the machine and a balanced wear of the mechanical members.
  • the extractor member 81 is common to the two devices 3 and moves along a guide 83 by means of a belt 85 controlled by a motor, not shown in the drawing for greater clarity of representation.
  • the extractor member 81 has a symmetrical conformation so as it can engage articles both in one and in the other of the two mutually opposite devices 3. With this arrangement it is easy to translate the single articles by means of the member 81 in the considered position nearly centrally on the conveyor 5 without risks for collision and arranging the devices 3 mutually opposite along the feeding path of the conveyor 5.
  • FIG. 5 shows a Cartesian diagram in which a generic profile P is shown, which represents the profile of any of the two ends E, E1 of a generic article M.
  • a generic profile P is shown, which represents the profile of any of the two ends E, E1 of a generic article M.
  • some points are identified (six in the example in the drawing), each defined by a pair of Cartesian coordinates Xi, Yi.
  • the points are at the same distance along the axis X. They correspond to the points of the profile which can be identified by the photocells 61 E, 61 R which are arranged in a number corresponding to the points Xi, Yi, aligned according to the axis X.
  • the ordinate Yi of each point of the profile is calculated based upon the displacement which the article M performs along the path 11 during detection, displacement which can be determined for example through an encoder associated to the motorized roller 39.
  • the inclination of each segment of the profile P between two adjacent points of coordi- nates Xj, YJ; X i+1 , Yj + i is given by the difference (Yj+i - Yj).
  • the two ends E and E1 are different in shape: if the article is a sock, the end, which is constituted by the edge of the sock, has a more rectilinear shape, whilst the end constituted by the toe is more curvilinear.
  • the two ends therefore differ by the value of the average deviation DM, defined in the following manner: wherein being N the number of the points on the profile P, i.e. the number of photocells used.
  • the device can operate so as to perform an inversion of the article and a reading of the end opposite to that which has not been correctly identified.
  • the device performs the cycle of the operations indicated in the sequence of figures 6A - 6D, which lead to the inversion of the article M.
  • the inverted article is then manipulated according to the normal cycle of flattening and reading already described above, but on the opposite end.
  • the shape of the article M is such that the two ends E and
  • E1 cannot be identified based upon the shape.
  • a situation of this type occurs, for example, in the case of the so called “invisible socks", i.e. socks which cover only the feet and remain invisible inside the shoe.
  • a detecting method based upon the color.
  • the mark is obtained by means of a colored yarn with which a certain number of knitting courses is obtained. These knitting courses can be for example the lines of the toe which, after sewing, are cut. In this way the colored yarn is eliminated from the finished product.
  • the device, which performs this type of detection can remain substantially the same of that described above, with the exception of the presence of photocells or other sensors capable to identify the color.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Socks And Pantyhose (AREA)
  • Knitting Of Fabric (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Le dispositif (3) comprend une voie qui est destinée à un article textile (M) et qui s’étend sur une section transversale variable, définie par un élément mobile (33) capable pouvant être déplacé entre au moins une première position correspondant à une section transversale maximale et une seconde position qui diminue la section transversale, ladite section transversale prenant une forme étroite et allongée transversalement par rapport au sens d’arrivée des articles le long de la voie. Un dispositif de discrimination est associé à la voie afin de distinguer la première extrémité de l’article de la seconde.
PCT/IT2009/000098 2008-03-20 2009-03-17 Dispositif et procédé permettant d’aplanir et d’identifier les extrémités d’un article textile, en particulier d’une chaussette Ceased WO2009116110A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI2008A000055 2008-03-20
ITFI20080055 ITFI20080055A1 (it) 2008-03-20 2008-03-20 "dispositivo e metodo per spianare e riconoscere le estremita' di un manufatto tessile, in particolare un calzino"

Publications (1)

Publication Number Publication Date
WO2009116110A1 true WO2009116110A1 (fr) 2009-09-24

Family

ID=40292760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2009/000098 Ceased WO2009116110A1 (fr) 2008-03-20 2009-03-17 Dispositif et procédé permettant d’aplanir et d’identifier les extrémités d’un article textile, en particulier d’une chaussette

Country Status (2)

Country Link
IT (1) ITFI20080055A1 (fr)
WO (1) WO2009116110A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107653578A (zh) * 2017-09-30 2018-02-02 安徽中科智能高技术有限责任公司 一种基于圆环形负压腔自动打开袜口并套袜的装置及其使用方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1063335A2 (fr) * 1999-06-24 2000-12-27 Conti Complett S.p.A. Dispositif pour amener des chaussettes correctement orientées à une station de traitement
EP1178143A2 (fr) * 2000-07-21 2002-02-06 Matec Spa Méthode de détection de l'orientation d'un produit textile à deux extrémités, appareil pour la mise en oeuvre de cette méthode et dispositif orienteur associé au dit appareil
US6386801B1 (en) * 1999-03-23 2002-05-14 Matec S.P.A. Automatic orientation of tubular articles such as stockings and the like
US20040154510A1 (en) * 2003-01-24 2004-08-12 Bb & S Knitting Consultants Apparatus and method for automatically orienting hosiery articles for closing toe ends thereof
WO2007020667A1 (fr) * 2005-08-19 2007-02-22 Golden Lady Company S.P.A. Dispositif et procede permettant de manipuler des articles tricotes tubulaires, tels que des bas et des chaussettes ou autres articles de ce genre
WO2007138630A1 (fr) * 2006-05-31 2007-12-06 Golden Lady Company S.P.A. Procédé et dispositif d'extension pneumatique d'un article souple allongé, tel qu'un bas ou une chaussette

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6386801B1 (en) * 1999-03-23 2002-05-14 Matec S.P.A. Automatic orientation of tubular articles such as stockings and the like
EP1063335A2 (fr) * 1999-06-24 2000-12-27 Conti Complett S.p.A. Dispositif pour amener des chaussettes correctement orientées à une station de traitement
EP1178143A2 (fr) * 2000-07-21 2002-02-06 Matec Spa Méthode de détection de l'orientation d'un produit textile à deux extrémités, appareil pour la mise en oeuvre de cette méthode et dispositif orienteur associé au dit appareil
US20040154510A1 (en) * 2003-01-24 2004-08-12 Bb & S Knitting Consultants Apparatus and method for automatically orienting hosiery articles for closing toe ends thereof
WO2007020667A1 (fr) * 2005-08-19 2007-02-22 Golden Lady Company S.P.A. Dispositif et procede permettant de manipuler des articles tricotes tubulaires, tels que des bas et des chaussettes ou autres articles de ce genre
WO2007138630A1 (fr) * 2006-05-31 2007-12-06 Golden Lady Company S.P.A. Procédé et dispositif d'extension pneumatique d'un article souple allongé, tel qu'un bas ou une chaussette

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107653578A (zh) * 2017-09-30 2018-02-02 安徽中科智能高技术有限责任公司 一种基于圆环形负压腔自动打开袜口并套袜的装置及其使用方法
CN107653578B (zh) * 2017-09-30 2019-10-15 安徽中科智能高技术有限责任公司 一种基于圆环形负压腔自动打开袜口并套袜的装置及其使用方法

Also Published As

Publication number Publication date
ITFI20080055A1 (it) 2009-09-21

Similar Documents

Publication Publication Date Title
WO2009141842A1 (fr) Procédé et dispositif pour retourner des articles tubulaires, tels que des chaussettes et des bas, après la fermeture du talon
EP1585695A1 (fr) Appareil et procede pour orienter automatiquement des articles de bonneterie de facon a fermer leurs extremites
CN110023219B (zh) 在纺织机中检测旋转的筒管上的纱线端部的方法及装置
WO2009116110A1 (fr) Dispositif et procédé permettant d’aplanir et d’identifier les extrémités d’un article textile, en particulier d’une chaussette
EP1243682A2 (fr) Procédé et dispositif pour l'orientation longitudinale d'articles de bonneterie
US5511501A (en) Method and apparatus for handling flexible objects
US20090049867A1 (en) Device and method for handling tubular knitted articles, such as stockings and socks or the like
US7290409B2 (en) Method and device for handling a tubular knitted article, in particular a sock
US20030226246A1 (en) Process for selectively lacing filaments on multidimensional textile preforms and device for practicing the same
EP1922442B1 (fr) Dispositif de transfert automatique d articles textiles depuis une remailleuse vers une machine de formage
EP2019877A1 (fr) Méthode et dispositif pour distinguer les deux extrémités d'un article
US20090107375A1 (en) Device for handling tubular knitted articles, in particular socks and the like
EP1857582A1 (fr) Dispositif automatique et méthode pour orienter un article textile sur un support
US20060213925A1 (en) Machine and method for handling tubular manufactured items
GB2236307A (en) Article handler
WO2005100664A1 (fr) Machine pour la manipulation d'articles tricotes, tels que des chaussettes ou analogues
HK1123584A (en) Device and method for handling tubular knitted akticles, such as stockings and socks or the like
EP1039016A2 (fr) Dispositif et procédé pour compter les articles textiles, comme les bas, les chaussettes, collants ou analogues
CN117963536A (zh) 一种袜子自动收料设备
US20090038520A1 (en) Machine for handling tubular knitted articles, such as socks or the like
EP1378468A1 (fr) Dispositif pour le prélèvement automatisé de textiles tubulaires
MXPA97004953A (en) Apparatus to group text

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09722986

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09722986

Country of ref document: EP

Kind code of ref document: A1