EP0056760B1 - Procédé et dispositif de traitement de pièces de tissu rectangulaires - Google Patents

Procédé et dispositif de traitement de pièces de tissu rectangulaires Download PDF

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Publication number
EP0056760B1
EP0056760B1 EP82400073A EP82400073A EP0056760B1 EP 0056760 B1 EP0056760 B1 EP 0056760B1 EP 82400073 A EP82400073 A EP 82400073A EP 82400073 A EP82400073 A EP 82400073A EP 0056760 B1 EP0056760 B1 EP 0056760B1
Authority
EP
European Patent Office
Prior art keywords
piece
edges
fabric
moving
predetermined position
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
Application number
EP82400073A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0056760A1 (fr
Inventor
Jean-Pierre Auguste Raisin
Bernard François Helffer
Jean-Louis André Chirouze
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.)
Centre Technique Industriel Dit Institut Textile
MECA 07
Original Assignee
MECA 07
Institut Textile de France
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 07, Institut Textile de France filed Critical MECA 07
Publication of EP0056760A1 publication Critical patent/EP0056760A1/fr
Application granted granted Critical
Publication of EP0056760B1 publication Critical patent/EP0056760B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B33/00—Devices incorporated in sewing machines for supplying or removing the work
    • D05B33/02—Devices incorporated in sewing machines for supplying or removing the work and connected, for synchronous operation, with the work-feeding devices of the sewing machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/34—Modifying, selecting, changing direction of displacement
    • B65H2301/341—Modifying, selecting, changing direction of displacement without change of plane of displacement
    • 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
    • D05D2305/02—Folding
    • D05D2305/04—Folding longitudinally to the sewing direction
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D10B2503/04—Floor or wall coverings; Carpets

Definitions

  • the present invention relates to a method of treating articles of fabric with two parallel front and rear edges, this method being of the type comprising the driving of each article in a first direction perpendicular to the two parallel edges, the driving of the article in a second direction substantially perpendicular to the first without changing the orientation of the edges and the simultaneous hemming of the two edges, while the article is driven in this second direction.
  • US-A-3,477,397 to HAWLEY teaches a process by which articles of fabric are transferred after being cut from a roll (because, of course, the articles exist as such only after cutting), in a direction parallel to the two edges to be hemmed, on a distribution section, then always in the same direction, on a seam line, where the two edges of the part are hemmed simultaneously.
  • the object of the invention is to propose a method of simultaneously hemming the two edges allowing such length differences.
  • the arrival of the front and rear edges in their respective predetermined position is detected by respective sensors which generate a signal triggering the maintenance of the edges in their respective predetermined position.
  • the front and rear edges are respectively maintained in their predetermined position by lowering the front and rear locking belts on the part in the region of said edges.
  • said locking belts are used to at least start driving the article in the second direction.
  • an endless belt is used to drive, after cutting, the article in the first direction.
  • an additional drive roller is used to drive the rest of the article in the first direction while maintaining the front edge.
  • the entrainment of a fabric article in the second direction is done at least during the whole time when there is no maintenance of the cut edges of another treated article in their predetermined position.
  • maintaining the front edge in its predetermined position takes place after said edge is aligned with a stop transverse to the first direction.
  • the invention applies to the treatment of any article of fabric with parallel front and rear edges, whatever its shape (trapezoidal, rectangular, square, etc.), it is particularly suitable for a process which comprises beforehand the extraction of a continuous strip of fabric from a roll of fabric, the driving of this strip in the first direction and the cutting periodic in the continuous strip transverse to the first direction of a dimensional fabric article.
  • the edges of the continuous strip of fabric are hemmed.
  • the treatment ends with the folding of the part and the stacking of the part with the parts previously treated.
  • the device comprises front and rear sensors which detect the arrival of the front and rear edges in their respective predetermined position and generate a signal triggering the means for holding the front and rear edges in their respective predetermined position.
  • the respective means for holding the front and rear edges in their predetermined position consist of front and rear locking belts capable of lowering on the article in the region of said edges.
  • these belts are endless belts capable of being rotated and at least starting to drive the article in the second direction.
  • the belts entirely carry out the driving of the article in the second direction, and comprise a fixed part in height situated in particular at the level of the hemming means and a movable part in height situated in particular above the holding zone. front and rear edges of an article in their predetermined position.
  • the belts are entirely mobile in height and only carry out the start of the drive in the second direction, the device comprising downstream of these belts fixed means for resuming the drive in the second direction.
  • the device comprises a stop transverse to the first direction, and detection means associated with a delay circuit so that the means for holding the front edge are triggered after the front edge of an article has aligned with stop.
  • the free front end of the strip 1 advances discontinuously (for example by a suitable intermediate drive and a free loop of fabric between the roller 2 and said end) to be cut transversely by cutting means such as '' shears, knife, etc.
  • each article of fabric 5 is driven in the same first direction 3 by an endless conveyor belt 6, consisting of one or preferably several individual bands 7, supported and driven by shafts 8, at least one of which is a drive shaft controlled by a control device 9.
  • means for applying (not shown) the part on the carpet intended to hold it in place during the cutting operation.
  • These means are applicator rollers; more advantageously, they can consist of a shaft parallel to the roller 8 and bearing on its surface; along a generator, a series of normal fingers on the surface, compressible in length, and terminated by rubber pads.
  • the belt 6 is extended, in the first direction, by a fixed table 10 on which, transversely, a stopper 11 is fixed.
  • the cut article of fabric 5 is driven by the carpet 6 until its front edge 12 reaches a predetermined position before merging with the stop 11.
  • a front sensor 14, optical or mechanical or of any other type, is placed directly above the table 10 to detect the arrival of the front edge 12.
  • the detector is advantageously of the photosensitive type sending and receiving a light ray reflected by a mirror 15, placed in the table or under the table in which a passage for the light has been provided.
  • the sensor is associated with a delay circuit which triggers a command signal to lower the front locking belt 16, (FIG. 5) arranged transversely to the first direction 3 and perpendicular to the fixed table 10.
  • the delay is calculated, on the one hand, as a function of the distance from the sensor 14 to the stop 11 and, on the other hand, so that the lowering of the holding strap 16 occurs immediately after the front edge has suitably aligned with the stop 11, so as to compensate for any small misalignment of the front edge 12.
  • the length (in the direction of direction 3) of the table 10 is chosen to be as short as possible, knowing that it is only conditioned by the distance between the belt 16 and the stop 11, itself determined according to the position hemming needle for optimum hemming.
  • an additional safety sensor 17 can be provided, placed upstream of the holding strap 16, and which; after detection of the arrival of the article 5 at its level, delivers to the drive control device 9 a deceleration signal, so that the drive speed of the belt 6 is lower during the time of the operation of detection and maintenance of the front edge, and resume its normal value, either at the end of said operation (which indicates the triggering of the support belt before 16), or after the transfer operation of article 5 in the second direction, which will be described later.
  • the drive roller 18 is advantageous in that it makes it possible to accelerate the advance of the rest of the article 5 or else to stop the carpet 6 as soon as the front edge is maintained by the belt 16 and to proceed with the advance of the rest of the article only by means of said roller with the latter solution, the belt may very well be plumb with the carpet and not with the table 10 since the latter stops during the maintenance of the article by said belt 16.
  • the presence of the optional drive roller 18 makes it possible to provide a relatively high grip in the direction 3 on the surface thereof, facilitating the compaction operation without being annoying for the transverse transfer operations. described later, provided that a lifting system for said roller is provided during these transfer operations, or poor adhesion in the transverse direction of the roller.
  • a second rear support strap 19 is lowered to maintain the rear edge 13 in a predetermined rear position in response to a detection made by a rear sensor 20, advantageously of the photosensitive type with mirror 21, the mirror 21 being placed for example between two upper strands of two strips 7 of the mat 6.
  • the response to detection by the sensor 20 is possibly affected by 'A delay depending on the respective locations of the sensor 20 and the predetermined rear position (shown in Figures 6 and 8 by the arrows 22).
  • the predetermined front and rear positions are a function of the spacing chosen between the right and left hemming machines as will be seen below. These positions actually determined, the location of the sensors is chosen, and the delay circuits which are possibly associated with them are adjusted, so that, if the article of fabric has exactly the length (in direction 3) corresponding to the positioning of the two heads d hemming, the lowering of the two belts 16 and 19 is simultaneous.
  • the conveyor belt 6 is stopped at the same time as the belt 19 is lowered, if it has not been lowered when the front holding belt 16 was lowered.
  • the optional roller 18 is raised simultaneously with the lowering of the rear retaining strap 19.
  • the adhesion of the belts 16 and 19 in the second direction 23 is greater than the adhesion of the mat 6 in this same direction 23.
  • the belts 16 and 19 can be striated parallel to the direction 3, and the mat 6 striated parallel to direction 23.
  • the article of fabric which leaves the carpet 6 and the table 10 is driven on the bable 24 by the belts 16 and 19, its front edges 12 and rear 13 being maintained at their spacing corresponding to the spacing between the predetermined positions before and rear (represented in FIG. 1 by the stop 11 and the imaginary dotted line 25).
  • Corrective edge guides 26a and 26b possible left and right precede left and right hem guides 27a, 27b, themselves preceding left and right hemers 28a and 28b of conventional type, which sew the left and right hems.
  • each belt comprises a part 30 fixed in height situated in particular at the level of the hemming means, 28, and a part 31 movable in height, located in particular above the zone for holding the front and rear edges in their predetermined position, that is to say above the carpet 6 or the table 10.
  • the fixed part 30 comprises two rollers 32, 33 permanently applying the belt against the work table 24, and an upper roller 37.
  • the rollers 32, 33, 37 are fixed in height.
  • the movable part 31, located upstream of the sewing means must be able to be raised (fig. 2) to allow passage to the fabric 5 when it comes to bear against the stop 11, and to be lowered (fig. 3) to block the fabric and move it sideways.
  • the movable part 31 comprises rollers 34, 35, 36 for applying the belt at least to the holding zone, a roller 38 for the upper strand of the belt. All these rollers are movable in height between a high position (fig. 2) and a low position (fig. 3).
  • a fixed end roller 39 drives each belt continuously, except during the period when the moving part 31 of the front belt 16 is lowered and the moving part 31 of the rear belt 19 raised.
  • a fixed roller 40 or a guide maintains each belt in a position released from the drive surface 6, 10, 24 in the intermediate zone between the fixed part 30 and the mobile part 31, so as in particular to ensure for an article 5 a good recovery of the transverse direction 23 by the edge guides 26 correcting the poor selvedge placements.
  • each of the belts 16 and 19 with fixed and movable parts 30 and 31, by two independent belts, one of which is fixed, continuously rotating, and applies the fabric against the work table 24 to near the sewing heads and the other mobile in height. Between the fixed and movable belts, a free gap is left opposite the edge guides 26.
  • the hemming machines 28 are shown very close to the carpet 6, but in reality they are preferably distant from it at least the width (in the direction 23) of an article 5 so that positioning operations against the stop and hemming may have takes place simultaneously at a high production rate.
  • the conveyor belt 6 consists of several conveyor belts 7, the upper strands thereof can be separated, in particular in the downstream region of the conveyor belt where the articles 5 are driven in the second direction 23, by fixed flat surfaces serving slide when the holding belts 16, 19 convey the article 5 towards the sewing heads.
  • the spacing between the predetermined positions (25, 11) front and rear of the edges is chosen as a function of the minimum possible length (in direction 3) of the articles 5, so that the length of the articles 5 can only be equal or greater than said spacing, and can therefore in all cases be adjusted thanks to the invention to the value of said spacing, which allows perfect hemming of the front and rear edges of the articles.
  • the spacing of the hemming machines 28a and 28b is adjustable, the hemming machine 28b associated with the stop 11 being fixed, and the hemming machine 28b being adjustable parallel to the direction 3, by means of a slide or rail system not shown.
  • the adjustable space of the hemming machines 28 makes it possible to adapt the machine of the invention to the production of articles of different length in each series.
  • the installation described in accordance with the invention is particularly suitable for the hemming of mops.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)
EP82400073A 1981-01-16 1982-01-15 Procédé et dispositif de traitement de pièces de tissu rectangulaires Expired EP0056760B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8100832 1981-01-16
FR8100832A FR2498211A1 (fr) 1981-01-16 1981-01-16 Procede et dispositif de traitement de pieces de tissu rectangulaires

Publications (2)

Publication Number Publication Date
EP0056760A1 EP0056760A1 (fr) 1982-07-28
EP0056760B1 true EP0056760B1 (fr) 1985-12-27

Family

ID=9254249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400073A Expired EP0056760B1 (fr) 1981-01-16 1982-01-15 Procédé et dispositif de traitement de pièces de tissu rectangulaires

Country Status (5)

Country Link
US (1) US4432295A (ro)
EP (1) EP0056760B1 (ro)
JP (1) JPS57173089A (ro)
DE (1) DE3268061D1 (ro)
FR (1) FR2498211A1 (ro)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710025A1 (de) * 1987-03-27 1988-10-13 Schmale Carl Gmbh & Co Kg Verfahren und vorrichtung zur vollautomatischen herstellung von an ihren raendern eingefassten textilerzeugnissen

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545461B1 (fr) * 1983-05-04 1985-12-06 Inst Textile De France Procede et installation de transfert et de positionnement, destines a conferer une direction et une position predeterminees a une piece provenant d'un poste ou elle a une direction et une position donnees differentes
FR2546380A1 (fr) * 1983-05-25 1984-11-30 Fives Cail Babcock Installation pour la fabrication de poignets de chemises
US4632046A (en) * 1984-03-08 1986-12-30 The Charles Stark Draper Laboratory, Inc. Assembly system for seamed articles
DE3624994A1 (de) * 1986-07-24 1988-02-04 Schmale Carl Gmbh & Co Kg Verfahren und vorrichtung zum querschneiden, beidseitigen saeumen u. naehen von flachen materialbahnen, insbesondere frotteeware
DE3737369C1 (de) * 1987-11-04 1989-03-09 Texpa Arbter Maschb Gmbh Naehanlage fuer Stoffstuecke
JPH02142591A (ja) * 1988-11-24 1990-05-31 Kuinraito Denshi Seiko Kk 縫製設備
US5167197A (en) * 1991-05-20 1992-12-01 Lavelle Edward R Garment component fabricating system and method
US5390614A (en) * 1991-06-06 1995-02-21 Union Special Corporation Method and apparatus for automatically attaching a collarette display and label to a garment body by using a two step sewing operation
JPH07100282A (ja) * 1993-10-08 1995-04-18 Singer Nikko Kk 縫製装置
TWI468568B (zh) * 2013-08-23 2015-01-11 Chee Siang Ind Co Ltd The conveyor of the sewing machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2845885A (en) * 1957-01-25 1958-08-05 Scarrone Alfredo Ruben Sewing machine for burlap bags
US3477397A (en) * 1967-10-20 1969-11-11 Wagner Research Corp Flat article processing apparatus having a common blank supply feeding a plurality of worklines
GB1322267A (en) * 1971-10-12 1973-07-04 Burton P E Method and apparatus for treating cut ends of cloth lengths
US3773002A (en) * 1971-12-29 1973-11-20 P Burton Method and apparatus for folding and sewing hems
US3981255A (en) * 1975-05-27 1976-09-21 Home Curtain Corporation Curtain hemming device
US4152996A (en) * 1977-02-14 1979-05-08 Textron Inc. Method for sewing trouser-fly units and the like
US4271774A (en) * 1977-05-23 1981-06-09 Opelika Manufacturing Corporation Cutting and hemming system
US4154180A (en) * 1977-05-23 1979-05-15 Opelika Manufacturing Corporation Cutting and hemming system
US4353316A (en) * 1978-11-01 1982-10-12 Opelika Manufacturing Corporation Sheet production system with hem expander
US4224883A (en) * 1979-03-28 1980-09-30 Fieldcrest Mills, Inc. Apparatus for manufacturing pillowcases

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710025A1 (de) * 1987-03-27 1988-10-13 Schmale Carl Gmbh & Co Kg Verfahren und vorrichtung zur vollautomatischen herstellung von an ihren raendern eingefassten textilerzeugnissen

Also Published As

Publication number Publication date
EP0056760A1 (fr) 1982-07-28
FR2498211B1 (ro) 1984-10-26
DE3268061D1 (en) 1986-02-06
US4432295A (en) 1984-02-21
JPS57173089A (en) 1982-10-25
FR2498211A1 (fr) 1982-07-23

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