EP0260172B1 - Verfahren und Vorrichtung zum Halten von Stofflagen vor dem Zuschneiden - Google Patents

Verfahren und Vorrichtung zum Halten von Stofflagen vor dem Zuschneiden Download PDF

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Publication number
EP0260172B1
EP0260172B1 EP87401841A EP87401841A EP0260172B1 EP 0260172 B1 EP0260172 B1 EP 0260172B1 EP 87401841 A EP87401841 A EP 87401841A EP 87401841 A EP87401841 A EP 87401841A EP 0260172 B1 EP0260172 B1 EP 0260172B1
Authority
EP
European Patent Office
Prior art keywords
needles
needle
cylinder
web
axis
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 - Lifetime
Application number
EP87401841A
Other languages
English (en)
French (fr)
Other versions
EP0260172A2 (de
EP0260172A3 (en
Inventor
Marc Vandermarliere
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.)
Institut Textile de France
Original Assignee
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 Institut Textile de France filed Critical Institut Textile de France
Publication of EP0260172A2 publication Critical patent/EP0260172A2/de
Publication of EP0260172A3 publication Critical patent/EP0260172A3/fr
Application granted granted Critical
Publication of EP0260172B1 publication Critical patent/EP0260172B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H15/00—Cloth-holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • Y10S83/939—Cloth or leather with work support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
    • Y10T83/0443—By fluid application
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0481—Puncturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer

Definitions

  • the present invention relates to the preparation, with a view to their cutting, of mattresses of knitted textile panels, intended for making clothes such as pullovers, dresses or similar articles, as described for example in document GB-A 2 040 330.
  • the needle table is commonly used for the preparation of the constituent elements of a mesh article, for their assembly.
  • the knitted panels are stretched and stacked on the needles, placed around the edge of the panel and at the remarkable points of the pattern. This positioning on needles makes it possible to put the panels under extension, and to maintain them in this state during cutting. In this way, each element of the article is cut from a knitted fabric whose mesh density is as homogeneous as possible.
  • the use of the needle table is not entirely satisfactory. Indeed, when cutting the mattress with an electric chisel, it is necessary to remove needles from the mattress as the chisel progresses through the mattress; this shrinkage causes deformation of the knitted fabric, in particular at the ribbing which tends to tighten strongly as soon as the needles are eliminated; a shift between the different layers of the mattress can also occur, in particular at the edge of the mattress when the cut is made at the edge: the scissor tends to drive out when there is five to ten millimeters of margin between the cutting line and the edge and the cut obtained is not regular.
  • the knitting is generally placed on the needles under low extension, or even in the free state, although this is to the detriment of the quality of the preparation.
  • the knitted panels are placed under extension on the needles of a needle table, the mattress consists of a sheet of air-impermeable material, a vacuum is created at the inside the mattress by suction of the air contained between the tablet and the sheet, the needles are removed from the mattress and the cutting is carried out while maintaining the suction throughout the duration of the cutting.
  • the depression created inside the mattress blocks the knitted panels in the state of extension in which they were placed during the constitution of the mattress throughout the duration of the cut.
  • Vacuuming is also well known for cutting the mattresses of woven articles, which do not require extrusion of the corresponding panels, see for example FR-A 2 444 109.
  • the needle technique for knitted panels and the vacuum technique for woven panels. It is the merit of the invention to combine these two techniques after it has been verified that the vacuum is sufficient to keep all the panels of the mattress in the extended state without removing the knitted fabric after releasing the needles.
  • the needle technique is used for the preparation of the mattress, under extension; the vacuum technique for blocking the mattress.
  • the combination of the two techniques according to the invention leads to a result which has not been obtained until now: the cutting of a mattress of knitted panels under extension free of needles.
  • the needle table according to the invention comprises in known manner a vertically movable support on which the needles are fixed and a tablet perforated with holes in which the needles can slide.
  • a tablet perforated with holes in which the needles can slide typically, it comprises, under the lower surface of the tablet, a sealed box in which are placed the movable support and suction means capable of creating a vacuum in the box and through the holes formed in the tablet.
  • the needles are removable and maintained during their withdrawal from the mattress by temporary locking means.
  • This particular arrangement has the advantage of being able to modify the number and the position of the needles when changing a mattress for example by removing certain needles, playing freely in the holes of the tablet, while allowing the withdrawal of the needles, then blocked. , by vertical displacement of the mobile support.
  • the needle threaded into the hole, is received between the inner flank of the profile and the flexible tube. Temporary blockage of the needle is obtained by trapping the needle between said side of the profile and the wall of the inflated tube under the action of compressed air.
  • the flexible tube in line with the needle, is protected by a strip of a material having good resistance to friction, this in order to avoid deterioration of the wall of the tube during repeated introductions and withdrawals of the needle between the profile and the tube.
  • the panel 1 is stretched and fixed on the shelf 3 of the needle table 4 by means of the needles 5 placed on the periphery of the panel 1 and at the remarkable points of the pattern.
  • Several panels are placed one on the other and constitute a mattress 6.
  • the needle table 4 comprises the shelf 3, the mobile support 7 and the suction box 8.
  • the shelf 3 is perforated with holes 9 regularly spaced according to the grid which is illustrated in FIG. 4. The interval between each hole is of the order of 2 centimeters.
  • Each hole 9 has a diameter sufficient to allow the free sliding of a needle 5.
  • the movable support 7 comprises a plate 10 on which are fixed the U-shaped sections 11 intended for blocking the needles 5, and the means ensuring the vertical movement of the plate 10.
  • These means consist of an endless screw 12 secured to the frame 13 of the table 4, and driven in rotation by the motor 14.
  • Two nuts 15 blocked by caps 16 are mounted at the ends of the screw 12; they are fixed to the lower end of the arm 17 articulated around the axis 18.
  • the upper end of this arm 17 carries a roller 19 rolling in the slide 20.
  • the plate 10 is guided transversely and longitudinally in the frame 13 by the casters 21.
  • the profiles 11 are fixed on the plate 10 so that the external generator 9 'of a hole 9 corresponds to the internal flank 11' of a profile 11. As illustrated in FIG. 5, the same profile is placed under two adjacent holes , which allows the locking of two needles simultaneously.
  • the flexible tube 22 is placed inside the profile 11. One end of this tube 22 is closed while the other is connected to a supply of compressed air.
  • the wall 23 of the tube 22 is extensible.
  • a protective strip 24, folded in the shape of a U in the lengthwise direction, is pinched between the tube 22 and the profile 11.
  • This strip 24 is an element of a flat belt.
  • a strap 25 is stretched transversely above the profiles 11, at the rate of a strap every twenty centimeters, by means of hooks fixed on the plate 10 between each profile. The ends of each strap 25 are pinched under the end sections.
  • the width of the strap 25 is such that it can pass between two lines of needles.
  • the suction box 8 consists of walls laterally closing the four sides of the frame 13, the bottom 26 and the shelf 3, all forming a sealed box in which are locked the movable support 4 and the needle locking means.
  • the operation of the table 4 for the preparation of the mattress for cutting is carried out as follows.
  • the movable plate 10 being in the high position, needles 5 in a determined number are placed in the holes 9 of the shelf 3 according to the appropriate arrangement as a function of the size of the panels and the conformation of the pattern.
  • Each needle 5 is introduced into the housing between the section 11 and the outer wall of the ruba 24 which protects the tube 22.
  • the compressed air is sent into all the tubes 22, which increases the diameter of said tube (fig. 5b and 5c) which clamps the needle 5 against the inner flank 11 'of the profile. All the needles 5 are thus blocked simultaneously.
  • the role of the band 24 and the strap 25 is to hold the tube 22 in the profile 11 and to prevent it from deforming and being damaged by the passage of the needles 5.
  • the motor 14 is started so that the nuts 15 move on the worm 12 towards the edges of the frame 13, driving down the lever 17 which, associated with the movement of the roller 19 in the slide 20, makes lower the plate 10.
  • the engine is stopped while the needles 5 protrude two to three centimeters above the tablet 3.
  • the operator can then start the padding, fixing under extension in accordance with Figure 2 each panel 1 on the needles 5.
  • the rise of the plate 10 is controlled by a new rotation of the motor 14 in the opposite direction.
  • the mattress 6 When the mattress 6 is finished, it is covered with a plastic wire 28, airtight, so that it overflows beyond and on each side of the mat las 6.
  • the suction turbine 27 is started.
  • the depression created in the sealed box 8 propagates through the holes 9 in the enclosure formed by the space between the film 28 and the tablet 3. This depression presses the film 28 onto the mattress 6 and compresses the latter.
  • the motor 14 is activated in the opposite direction, which lowers the plate 10 and, the needles 5 being blocked between the profiles 11 and the tube 22, which retracts the needles 5.
  • the cutting can then begin, the turbine 27 being kept in operation for the duration of the cut.
  • the mattress is compressed and held in extension under the effect of the suction, and can be cut in the absence of needles.
  • FIG. 6 illustrates a blocking system by purely mechanical means.
  • a bar 29 and a cylinder 30 are fixed on the plate 10 parallel to and on either side of each line of needles.
  • the bar is fixed to the upper face of the plate 10 and the cylinder 30 is secured to the plate 10 by two bearings holding the ends of its axis 31 of rotation, this axis 31 being eccentric.
  • a lever 32 At the end of the axis 31 is mounted a lever 32 which is itself connected to a rod 33.
  • This rod 33 is unique for all the cylinders; it is actuated by a jack 34.
  • the operation is as follows.
  • the bar 29 and the corresponding cylinder 30 are spaced apart from each other leaving between them a space intended to receive the lower part of the needle 5.
  • the jack is actuated, the rod 33 moves in the direction of arrow F, the lever 32 rotates the axis 31 on itself, which causes the cylinder 30 to pivot, which, the axis 31 being eccentric, presses against the needle, wedged between the cylinder 30 and the bar 29.
  • the depression implemented by the turbine was 300 mm of water at a flow rate of 300 m3 / h.
  • the tablet has 5151 perforations of 2 mm in diameter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (5)

1. Verfahren zum Vorbereiten für den Zuschnitt von Stofflagen aus gestrickten Textilbahnen (1) vom Typ gemäß dem unter Ausdehnung die gestrickten Textilbahnen (1) auf die Nadeln (5) eines Nadeltisches (4) gesetzt werden, dadurch gekennzeichnet: daß die so gebildete Stofflage (6) mit einem Blatt (28) aus luftundurchlässigem Material bedeckt wird, daß ein Unterdruck im Inneren der Stofflage (6) durch Absaugen von Luft erzeugt wird, die zwischen der Tischlplatte (3) und dem Blatt (28) enthalten ist, daß die Nadeln (5)) von der Stofflage (6) zurückgezogen werden, und daß der Zuschnitt unter Beibehalten des Absaugens während der gesamten Dauer des Zuschnitts durchgeführt wird.
2. Nadeltisch für die Durchführung des Verfahrens nach Anspruch 1, vom Typ mit einem vertikal beweglichen Support (7) auf dem die Nadeln (5) befestigt sind und einer mit Löchern (9) perforierten Tischplatte (3), in denen die Nadeln (5) gleiten können, dadurch gekennzeichnet, daß er unterhalb der Unterseite der Tischplatte (3) ein dichtes Fach (8) aufweist, in dem der bewegliche Support (7) und Absaugeinrichtungen (27) angeordnet sind, die in der Lage sind einen Unterdruck in dem Fach (8) und durch die Löcher (9) zu erzeugen, die in der Tischplatte (3) ausgebildet sind.
3. Nadeltisch nach Anspruch 2, dadurch gekennzeichnet, daß die Nadeln (5) entfernbar sind und während ihres Zurückziehens von der Stofflage (6) durch zeitweise Blockierungseinrichtungen (11, 22; 29, 30) gehalten werden.
4. Nadeltisch nach Anspruch 3, dadurch gekennzeichnet, daß die zeitweisen Blockierungseinrichtungen einer Nadel (5) unterhalb des Lochs (9), das entsprechend in der Tischplatte (3) ausgebildet ist, aufweisen:
ein U-Profil (11), das auf der Oberseite des beweglichen Supports (7) derart befestigt ist, daß die Stellung der äußeren Erzeugenden (9') des Lochs (9) der inneren Flanke (11') des Profils (11) entspricht, und ein biegsames Rohr (22) mit einer ausdehnbaren Seitenwand (23), das am Boden des Profils (11) angeordnet ist, das mit einer Druckluftquelle verbunden ist.
5. Nadeltisch nach Anspruch 3, dadurch gekennzeichnet, daß die zeitweisen Blockierungseinrichtungen einer Nadel (5) unterhalb des entsprechend in der Tischplatte (3) ausgebildeten Loches aufweisen:
einen Stab (29), der auf der Oberseite des beweglichen Supports (7) befestigt ist, und einen Zylinder (30), der mit dem beweglichen Support (7) durch Lager verbunden ist, die seine Achse (31) exzentrisch halten, wobei der Stab (29) und der Zylinder (30) beiderseits der äußeren Erzeugenden des Lochs (9) parallel verlaufen;
einen Hebel (32), der am Ende der Achse (31) des Zylinders (30) angeordnet ist, und mit einer Stange (33) verbunden ist, die durch einen Stelltrieb (34) betätigt wird, derart, daß bei der Aktion des Stelltriebs (34) die Stange (33) unter Antrieb des Hebels (32) die Achse (31) des Zylinders (30) dreht, und, wobei die Achse (31) exzentrisch ist, der Zylinder (30) schwenkt und die Nadel (5) gegen den Stab (29) drückt.
EP87401841A 1986-09-08 1987-08-07 Verfahren und Vorrichtung zum Halten von Stofflagen vor dem Zuschneiden Expired - Lifetime EP0260172B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8612555A FR2603622B1 (fr) 1986-09-08 1986-09-08 Procede et dispositif de preparation de matelas a la coupe
FR8612555 1986-09-08

Publications (3)

Publication Number Publication Date
EP0260172A2 EP0260172A2 (de) 1988-03-16
EP0260172A3 EP0260172A3 (en) 1989-03-15
EP0260172B1 true EP0260172B1 (de) 1990-02-28

Family

ID=9338768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401841A Expired - Lifetime EP0260172B1 (de) 1986-09-08 1987-08-07 Verfahren und Vorrichtung zum Halten von Stofflagen vor dem Zuschneiden

Country Status (5)

Country Link
US (1) US4807504A (de)
EP (1) EP0260172B1 (de)
DE (1) DE3761738D1 (de)
ES (1) ES2014315B3 (de)
FR (1) FR2603622B1 (de)

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JP2517746B2 (ja) * 1988-05-31 1996-07-24 株式会社川上製作所 積層シ―ト材の裁断装置
US5063800A (en) * 1989-09-18 1991-11-12 Eastman Machine Company Pin table
JP2535619B2 (ja) * 1989-09-19 1996-09-18 株式会社川上製作所 柄物シ―ト裁断方法およびその裁断装置
US5020405A (en) * 1990-05-17 1991-06-04 Gerber Garment Technology, Inc. Apparatus with moveable pins for spreading and cutting layups of sheet material
US5596939A (en) * 1994-06-22 1997-01-28 Sara Lee Corporation Apparatus for forming tubular collars
US6277671B1 (en) * 1998-10-20 2001-08-21 Micron Technology, Inc. Methods of forming integrated circuit packages
US6945151B1 (en) * 1998-10-20 2005-09-20 Micron Technology, Inc. Integrated circuit package separators
US6883485B2 (en) 2001-12-07 2005-04-26 Honda Giken Kogyo Kabushiki Kaisha OHV and gear mechanism for engine
EP1897665A1 (de) * 2006-08-28 2008-03-12 Escada AG Verfahren und Vorrichtung zum Herstellen von Zuschnitten
DE102007018782A1 (de) * 2007-04-20 2008-10-23 Assyst Bullmer Spezialmaschinen Gmbh & Co. Kg Anordnung zum Nadeln von biegeschlaffen Materialbahnen
CN103835116B (zh) * 2014-03-10 2016-05-04 南京宏盛毛毡制品有限公司 一种钢琴弦槌开呢机
CN108611842B (zh) * 2018-06-26 2020-06-05 海澜之家股份有限公司 一种规则花型面料服装裁片复合裁剪方法
CN110948561B (zh) * 2019-11-13 2021-07-16 朱辰 一种纱门自动切断机取料装置

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US1475278A (en) * 1921-08-20 1923-11-27 Niles Bement Pond Co Pneumatic tool holder
US2852463A (en) * 1956-11-14 1958-09-16 Intercompany Corp Plate clamping mechanism for electrolytic treating apparatus
FR1475071A (fr) * 1966-03-05 1967-03-31 Installation notamment pour le découpage de tissus à motifs, par exemple rayé, écossais ou autre
US3495492A (en) * 1969-05-05 1970-02-17 Gerber Garment Technology Inc Apparatus for working on sheet material
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BE849666A (fr) * 1976-12-21 1977-04-15 Table a picots pour la preparation a la coupe matelas de panneaux utilises en bonneterie
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Also Published As

Publication number Publication date
FR2603622A1 (fr) 1988-03-11
US4807504A (en) 1989-02-28
EP0260172A2 (de) 1988-03-16
DE3761738D1 (de) 1990-04-05
ES2014315B3 (es) 1990-07-01
FR2603622B1 (fr) 1990-03-23
EP0260172A3 (en) 1989-03-15

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