EP1203839A1 - Method and apparatus for the orientation of tubular products such as hosiery articles and similar textile products - Google Patents

Method and apparatus for the orientation of tubular products such as hosiery articles and similar textile products Download PDF

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Publication number
EP1203839A1
EP1203839A1 EP01830659A EP01830659A EP1203839A1 EP 1203839 A1 EP1203839 A1 EP 1203839A1 EP 01830659 A EP01830659 A EP 01830659A EP 01830659 A EP01830659 A EP 01830659A EP 1203839 A1 EP1203839 A1 EP 1203839A1
Authority
EP
European Patent Office
Prior art keywords
rollers
band
supports
plane
elastic band
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Withdrawn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
EP01830659A
Other languages
German (de)
English (en)
French (fr)
Inventor
Pier Lorenzo Migliorini
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.)
Macchine Tessili Circolari MATEC SpA
Original Assignee
Macchine Tessili Circolari MATEC 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 Macchine Tessili Circolari MATEC SpA filed Critical Macchine Tessili Circolari MATEC SpA
Publication of EP1203839A1 publication Critical patent/EP1203839A1/en
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention refers to a method and an apparatus for the orientation of tubular products such as hosiery articles and similar textile products.
  • Stockings are known to be manufactured by using tubular elements which are open in correspondence of both ends, one of which is intended to form the toe after the closing thereof by a suitable sewing operation.
  • the other end being possibly worked so as to result either considerably more elastic and of greater thickness or consistency, and to define therefore a so-called "elastic band", or to have the same consistency.
  • the band or, in any case, the end opposite to the foot suitably oriented with respect to the foot end. An improper mutual orientation of these two portions of the stocking would bring about an imperfect seam and the impossibility to wear the article.
  • the present invention therefore provides for allowing, in a simple and efficient manner, the most correct orientation of tubular articles, such as those used in the manufacturing of stockings and socks. This result has been achieved, according to the invention, by providing an operating process and an apparatus having the characteristics indicated in the independent claims. Further characteristics being set forth in the dependent claims.
  • the present invention makes it possible to correctly orient the product's portion opposite to the toe or foot, by using the same apparatus allowing the positioning thereof in a condition useful for operating said orientation. Moreover, the same apparatus allows the product to be placed in a condition allowing the removal and transfer thereof to a separate station for such a treatment as, for example, the turning inside-out thereof onto tubes of a toe-closing machine or the transfer thereof onto the shapes of an ironing machine. Moreover, an apparatus according to the invention is relatively easy to make, cost-effective, reliable even after a prolonged service life, and takes up only one operating station.
  • an apparatus comprises a plurality of rollers (1a, 1b) parallel to each other and onto which the elastic band (20) of a stocking (2), that is, the portion opposite to the foot thereof, can be positioned, that is, fitted.
  • the said rollers (1a; 1b) are in number of four, in the example shown in the figures of the attached drawings, and are disposed like the vertexes of a quadrilateral.
  • Each pair of vertically aligned rollers (1a, 1b) is associated with a corresponding electrical motor (3a, 3b), so that each motor (3a, 3b) drives into rotation a corresponding pair of rollers.
  • the axes (10a; 10b)) of said rollers (1a, 1b) are connected to the shaft of the respective motor (3a; 3b) by a belt (4a; 4b).
  • each pair (or, more generally, each group) of vertically aligned rollers (1a; 1b) is mounted, with the respective motor (3a; 3b), on a support (5) allowing each pair of rollers to be moved close (AV) to or away from (AL) each other.
  • the said support (5) may be provided in two parts (5a, 3b), complementary to a longitudinal plane of symmetry (L-L), which define a conduit (I) for the introduction therein of the products to be worked, and inside said conduit there is provided a substantially cylindrical pin (6) longitudinally developed along an axis lying on said plane (L-L).
  • Designated by (A) is a section of the conduit connectable to an aspirator (not shown).
  • the said pin (6) is also in two complementary parts (6a; 6b), each of which is solid to, and inside a corresponding semi-conduit (5a, 5b).
  • Such a conduit formed into two symmetrically complementary parts is described in the document (IT) FI97A135 to which reference may be made for further details.
  • each semi-pin (6a, 6b) is associated with a corresponding pair of vertically aligned rollers (1a, 1b). More in particular, as shown in the examples of Figs. 1-3, each pair of rollers (1a, 1b) is in correspondence of the external side of each semi-pin (6a, 6b), that is, in correspondence of the side opposite to said plane (L-L).
  • the moving of the two semi-conduits closer to, and away from each other, together with the respective semi-pins, is achieved by means of an actuator (50) (shown schematically only in Fig. 4) acting on the outer surface of one of the two semi-conduits, the other semi-conduit being solid to a stationary structure (not shown).
  • the present apparatus also comprises an optical detector (7) (for example, a photocell) whose optical axis lies, for example, on said plane (L-L).
  • the said detector (7) is intended to sense the presence of a mark provided on the band (20), that is, on the part opposite to the product's toe (2).
  • the said mark may consist, for example, of a thread having colour and consistency other than those used for knitting the product.
  • each of said actuators (80a, 80b) is solid to a corresponding semi-conduit (5a, 5b) and drives the corresponding semi-pin (6a, 6b) for blocking the product and for releasing it, as described below.
  • Each of said buffers is mounted on the free end of the rod of the respective actuator, and each of said semi-conduits has an opening in order to receive the relevant buffer and provide for a passage of the corresponding rod.
  • each buffer (8a, 8b) Provided upstream and downstream of each buffer (8a, 8b) is a corresponding optical sensor (81a, 81b) having the respective optical axis oriented towards a corresponding semi-pin (6a, 6b) in order to verify whether the product is fitted onto the same semi-pins and, thereby, onto the rollers (1a, 1b).
  • a programmable electronic unit UE in a fashion known per se to those skilled in industrial automation.
  • the product (2) is aspirated into the conduit formed by the elements (5a, 5b) moved closely to each other, with the portion of the band (20) facing forward. The latter, therefore, fits onto the pin (6) and rollers (1a, 1b).
  • the sensors (81a, 81b) check for the presence of the product fitted onto the pin (6) and rollers (1a, 1b), and the unit (E) starts the actuators (80a, 80b) which move the buffers (8a, 8b) onto the product by engaging the latter with the pin (6) and rollers (1a, 1b).
  • the portion of the toe is suitably aspirated into the mouth (TB) of a tube T) of the toe-closing machine.
  • the semi-conduits (5a, 5b), along with relevant pins (6a, 6b) and pairs of rollers (1a, 1b) are driven away (AL), thereby causing the elastic band (20) to open or stretch apart.
  • the unit (E) drives the buffers (8a, 8b) backwards, and the rollers (1a, 1b) into a concordant rotation with clockwise and anticlockwise direction, by activating the respective motors (3a, 3b) until the mark on the band (20) is intercepted by the optical axis of the detector (7).
  • the motors (3a, 3b) come to a stop and, accordingly, the band (20) is also stopped being oriented as desired, that is, with the mark lined up with the sensor (7) or, anyway, being disposed in a preset portion.
  • a delayed stop may be programmed to dispose said mark not in correspondence of the sensor (7), but at a predetermined distance therefrom.
  • the product (2) can be unloaded, that is, turned inside-out onto the tube (T), while the toe portion is kept by suction inside the mouth (TB) of the same tube with the use of any suitable discharge and overturning mechanism such as, for example, the mechanism described in document (IT) FI97A135 previously mentioned; the latter provides for a carriage movable parallel to said plane (L-L) and equipped with hooks for the engagement of the free edge of the band (20) fitted onto the rollers (1a; 1b) in stretched apart condition (AL), in order to turn the product (2) inside-out onto the tube (T) by moving the carriage, with the hooks engaging the free edge of the elastic band, along the axis of the tube (T) until the band is released from the carriage.
  • any suitable discharge and overturning mechanism such as, for example, the mechanism described in document (IT) FI97A135 previously mentioned; the latter provides for a carriage movable parallel to said plane (L-L) and equipped with hooks for the engagement of the free edge of the band (20) fitted
  • the said tube (T) is of a conventional type used in the toe-closing machines.
  • the steps following those for turning inside-out the product (2) are those typical for sewing the toe and, accordingly, will not be described in greater detail.
  • Toe-closing machines are described in documents US 5014634, US 5272993 and US 4020775.
  • rollers (1a, 1b) on the corresponding supports able to be mutually moved cles to or away from each other, and which define a conduit into which the product in the course of formation is to be taken in by suction, allows the products (2) to be fitted more easily onto the rollers, by disposing the supports in close position, and allows also the band (20) to be properly oriented with the supports located further away from each other.
  • the present invention provides for the presence of at least one roller (1a, 1b) of suitable diameter in correspondence of each of said semi-pins (6a, 6b), that is, for each of the two parts (5a, 5b) of support (5).
  • provision may be made for only one motor-driven roller on one of the semi-pins, and for an idle roller (driven into rotation by the friction exerted by the sticking material when the motor-driven roller is in rotation) on the other.
  • only one motor-driven roller may be provided in correspondence of one of said semi-pins, by exploiting the surface of the other semi-pin as a sliding surface for the product being driven into rotation by the motor-driven roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP01830659A 2000-10-23 2001-10-19 Method and apparatus for the orientation of tubular products such as hosiery articles and similar textile products Withdrawn EP1203839A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI000216 2000-10-23
ITFI20000216 IT1314987B1 (it) 2000-10-23 2000-10-23 Metodo e dispositivo per l'orientamento di manufatti tubolari comearticoli di calzetteria e simili manufatti tessili.

Publications (1)

Publication Number Publication Date
EP1203839A1 true EP1203839A1 (en) 2002-05-08

Family

ID=11441978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830659A Withdrawn EP1203839A1 (en) 2000-10-23 2001-10-19 Method and apparatus for the orientation of tubular products such as hosiery articles and similar textile products

Country Status (2)

Country Link
EP (1) EP1203839A1 (it)
IT (1) IT1314987B1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375722A1 (en) * 2002-06-18 2004-01-02 MATEC S.p.A. Apparatus and method for detecting the orientation of textile products such as stockings and socks

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308980A (en) * 1979-02-07 1982-01-05 Solis S.R.L. Positioning device for tubular hose
EP0882829A1 (fr) * 1997-06-02 1998-12-09 Matec S.p.A. Dispositif pour l'écartement d'une extrémité d'un produit manufacturé tubulaire
EP0960968A2 (en) * 1998-05-27 1999-12-01 MATEC S.p.A. Method and apparatus for handling textile articles, especially for loading articles on hosiery machines
US6132166A (en) * 1997-06-23 2000-10-17 Matec S.P.A. Apparatus and method for positioning textile articles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4308980A (en) * 1979-02-07 1982-01-05 Solis S.R.L. Positioning device for tubular hose
EP0882829A1 (fr) * 1997-06-02 1998-12-09 Matec S.p.A. Dispositif pour l'écartement d'une extrémité d'un produit manufacturé tubulaire
US6132166A (en) * 1997-06-23 2000-10-17 Matec S.P.A. Apparatus and method for positioning textile articles
EP0960968A2 (en) * 1998-05-27 1999-12-01 MATEC S.p.A. Method and apparatus for handling textile articles, especially for loading articles on hosiery machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375722A1 (en) * 2002-06-18 2004-01-02 MATEC S.p.A. Apparatus and method for detecting the orientation of textile products such as stockings and socks

Also Published As

Publication number Publication date
ITFI20000216A1 (it) 2002-04-23
IT1314987B1 (it) 2003-01-21

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