EP0056760A1 - Verfahren und Vorrichtung zur Behandlung von viereckigen Gewebestücken - Google Patents

Verfahren und Vorrichtung zur Behandlung von viereckigen Gewebestücken Download PDF

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Publication number
EP0056760A1
EP0056760A1 EP82400073A EP82400073A EP0056760A1 EP 0056760 A1 EP0056760 A1 EP 0056760A1 EP 82400073 A EP82400073 A EP 82400073A EP 82400073 A EP82400073 A EP 82400073A EP 0056760 A1 EP0056760 A1 EP 0056760A1
Authority
EP
European Patent Office
Prior art keywords
edges
fabric
predetermined position
driving
piece
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
EP82400073A
Other languages
English (en)
French (fr)
Other versions
EP0056760B1 (de
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
Agence National de Valorisation de la Recherche ANVAR
Institut Francais Textile et Habillement
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, Agence National de Valorisation de la Recherche ANVAR, Institut Francais Textile et Habillement filed Critical MECA 07
Publication of EP0056760A1 publication Critical patent/EP0056760A1/de
Application granted granted Critical
Publication of EP0056760B1 publication Critical patent/EP0056760B1/de
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 pieces of fabric with two parallel front and rear edges, this method being of the type comprising driving each piece in a first direction perpendicular to the two parallel edges, driving the piece 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 part is driven in this second direction.
  • the present invention aims to overcome the aforementioned drawbacks and in particular to propose a hemming process allowing a series of pieces of fabric which can have width differences to be hemmed perfectly.
  • 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 part in the second direction.
  • an endless belt is used to drive, after cutting, the part in the first direction.
  • an additional drive roller is used to drive the rest of the part in the first direction while the front edge is maintained.
  • the entrainment of a piece of fabric in the second direction is done at least during the whole time when there is no maintenance of the cut edges of another treated part 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 piece of fabric with parallel front and rear edges, whatever its shape (trapezoidal, rectangular, square, etc.), it is very particularly suitable for a process which comprises prior extrac tion of a continuous strip of fabric from a roll of fabric entraining this strip in the first direction and the periodic cutting in the continuous strip transverse to the first direction of a piece of fabric to size.
  • 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 leading and trailing edges in their respective predetermined position and engen- rent of a signal triggering the means for holding the leading and trailing 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 workpiece in the region of said edges.
  • these belts are endless belts capable of being rotated and at least starting to drive the part in the second direction.
  • the belts entirely carry out the driving of the part 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 area of maintaining the front and rear edges of a part 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 a part has aligned with stop.
  • the free front end of the strip 1 advances discontinuously (for example by an adequate intermediate drive and a free loop of fabric between the roller 2 and said end) to be cut transversely by cutting means 4 such as a shears, knife, etc.
  • each piece of fabric 5 is driven in the same first direction 3 by a endless conveyor belt 6, consisting of one or preferably several individual belts 7, supported and driven by shafts 8, at least one of which is a drive shaft controlled by a control device.
  • means of application (not shown) of the part on the carpet intended for keep it in place during the cutting operation.
  • These means located for example directly above the roller 8, can be applicator rollers; more advantageously, they can consist of a shaft parallel to the roller 8 and carrying on its surface, along a generator, a series of normal fingers on the surface, compressible in length, and terminated by rubber pads.
  • the shaft pivots so that the fingers come to rest on the piece and at the same time stretch and hold it, so that the cutting operation runs smoothly.
  • the shaft swivels again to release the part when the carpet returns to action.
  • the carpet 6 is extended, in the first direction, by a fixed table 10 on which, transversely, is fixed a stop 11.
  • the cut piece 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 die advantageously is 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 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 is properly 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 belt 16, and which, after detection of the arrival of the piece 5 at its level, delivers to the drive control device 9 a slowdown signal, so that the drive speed of the belt 6 is lower during the time of the edge detection and holding operation before, and resume its normal value or at the end of said operation (q u 'indicating the initiation of the holding belt 16 before), or after the transfer operation of the part 5 in the second direction, which will be described later is lying.
  • the rest of the part 5 continues to advance in the first direction, under the effect of the belt 6 which continues to rotate and / or under the effect of an optional drive roller 18, rotating with a peripheral drive speed greater than that of the belt 6.
  • the drive roller 18 is advantageous in that it makes it possible to accelerate the advance of the rest of the part 5 or Link to stop the mat 6 as soon as the front edge is maintained by the belt 16 and to advance the rest of the part only by means of said roller with the latter solution, the belt can very well be in line with the carpet and not the table 10 since it comes to a standstill while the part is held by said belt 16.
  • the presence of the optional drive roller 18 makes it possible to provide on the surface thereof a relatively high grip in the direction 3, facilitating the compaction operation without this being inconvenient 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 belt 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 as a function of the respective locations of the sensor 20 and of the predetermined rear position (shown in FIGS. 6 and 8 by the arrows 22).
  • the predetermined front and rear positions depend on the spacing chosen between the right and left hemming machines as will be seen - further on. 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 piece of fabric has exactly the length (in direction 3) corresponding to the positioning of the two hemming heads, the lowering of the two belts 16 and 19 is simultaneous.
  • the belt 6 is stopped at the same time as the belt 19 is lowered, if it was not when the lowering of the holding belt before 16 ..
  • 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 belt 6 in this same direction 23.
  • the belts 16 and 19 can be striated parallel to the direction 3, and the belt 6 striated parallel to direction 23.
  • the piece of fabric which leaves the carpet 6 and the table 10 is driven on the table 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 hemmer guides 27a, 27b, themselves preceding left and right hemers 28a and 28b of conventional type, which sew the left and right hems.
  • means 29 are provided for folding and stacking the pieces of fabric.
  • 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 area for holding the front and rear edges in their predetermined position, that is to say above the belt 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 a workpiece fabric 5 good recovery of the transverse direction 23 by the edge guides 26 correcting 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 a piece of fabric 5 of so that positioning operations against the stop and hemming can take place simultaneously at a high production rate.
  • the belt 6 consists of several conveyor belts 7, the upper strands thereof can be separated, in particular in the downstream region of the belt where the pieces of fabric 5 in the second direction 23 take place, by flat surfaces fixed serving as a slide when the holding straps 16,19 convey the piece of fabric 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 pieces of fabric 5, so that the length of the pieces 5 can only be 'equal to 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 pieces of fabric.
  • 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 pieces of fabric 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 Verfahren und Vorrichtung zur Behandlung von viereckigen Gewebestücken Expired EP0056760B1 (de)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=9254249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400073A Expired EP0056760B1 (de) 1981-01-16 1982-01-15 Verfahren und Vorrichtung zur Behandlung von viereckigen Gewebestücken

Country Status (5)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125945A1 (de) * 1983-05-04 1984-11-21 Centre Technique Industriel dit: INSTITUT TEXTILE DE FRANCE Verfahren und Vorrichtung zum Transferieren und Positionieren von Werkstücken
FR2546380A1 (fr) * 1983-05-25 1984-11-30 Fives Cail Babcock Installation pour la fabrication de poignets de chemises
EP0161749A1 (de) * 1984-03-08 1985-11-21 The Charles Stark Draper Laboratory, Inc. Zufuhr- und Ablegevorrichtung für Nähmaschinen
EP0319683A3 (en) * 1987-11-04 1989-08-09 Texpa Arbter Maschinenbau Gmbh Automatic sewing station

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Citations (5)

* 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
FR2166436A5 (de) * 1971-10-12 1973-08-17 Burton Perry
US4154180A (en) * 1977-05-23 1979-05-15 Opelika Manufacturing Corporation Cutting and hemming system
US4224883A (en) * 1979-03-28 1980-09-30 Fieldcrest Mills, Inc. Apparatus for manufacturing pillowcases

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4353316A (en) * 1978-11-01 1982-10-12 Opelika Manufacturing Corporation Sheet production system with hem expander

Patent Citations (5)

* 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
FR2166436A5 (de) * 1971-10-12 1973-08-17 Burton Perry
US4154180A (en) * 1977-05-23 1979-05-15 Opelika Manufacturing Corporation Cutting and hemming system
US4224883A (en) * 1979-03-28 1980-09-30 Fieldcrest Mills, Inc. Apparatus for manufacturing pillowcases

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125945A1 (de) * 1983-05-04 1984-11-21 Centre Technique Industriel dit: INSTITUT TEXTILE DE FRANCE Verfahren und Vorrichtung zum Transferieren und Positionieren von Werkstücken
US4679785A (en) * 1983-05-04 1987-07-14 Institut Textile De France Process and installation for transfer and positioning
FR2546380A1 (fr) * 1983-05-25 1984-11-30 Fives Cail Babcock Installation pour la fabrication de poignets de chemises
EP0130096A3 (en) * 1983-05-25 1985-06-19 Fives-Cail Babcock, Societe Anonyme Apparatus for producing shirt cuffs
EP0161749A1 (de) * 1984-03-08 1985-11-21 The Charles Stark Draper Laboratory, Inc. Zufuhr- und Ablegevorrichtung für Nähmaschinen
US4632046A (en) * 1984-03-08 1986-12-30 The Charles Stark Draper Laboratory, Inc. Assembly system for seamed articles
EP0319683A3 (en) * 1987-11-04 1989-08-09 Texpa Arbter Maschinenbau Gmbh Automatic sewing station

Also Published As

Publication number Publication date
FR2498211B1 (de) 1984-10-26
DE3268061D1 (en) 1986-02-06
US4432295A (en) 1984-02-21
EP0056760B1 (de) 1985-12-27
FR2498211A1 (fr) 1982-07-23
JPS57173089A (en) 1982-10-25

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