EP1017607B1 - Automatische schneid- und stapelvorrichtung für geformte werkstücke und verfahren zur verwendung derselben - Google Patents

Automatische schneid- und stapelvorrichtung für geformte werkstücke und verfahren zur verwendung derselben Download PDF

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Publication number
EP1017607B1
EP1017607B1 EP98948927A EP98948927A EP1017607B1 EP 1017607 B1 EP1017607 B1 EP 1017607B1 EP 98948927 A EP98948927 A EP 98948927A EP 98948927 A EP98948927 A EP 98948927A EP 1017607 B1 EP1017607 B1 EP 1017607B1
Authority
EP
European Patent Office
Prior art keywords
blanks
cutting
cut
shaped
stacking
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
EP98948927A
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English (en)
French (fr)
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EP1017607A1 (de
Inventor
Herbert Sybrant Van De Velde Keyser
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.)
Solutia Europe BVBA SPRL
Original Assignee
Solutia Europe BVBA SPRL
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Filing date
Publication date
Application filed by Solutia Europe BVBA SPRL filed Critical Solutia Europe BVBA SPRL
Priority to EP98948927A priority Critical patent/EP1017607B1/de
Publication of EP1017607A1 publication Critical patent/EP1017607A1/de
Application granted granted Critical
Publication of EP1017607B1 publication Critical patent/EP1017607B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers

Definitions

  • This invention relates to an automatic cutting and stacking device for cut shaped blanks and method of use.
  • the equipment is beneficially suitable for the manufacture and handling of cut shaped interlayer blanks.
  • the equipment of this invention comprises: a feeding mechanism generally embodying a surface that feeds accurately a film under a set angle along a set arc into the cutting unit; a cutting unit that cuts the shaped film squarely accross its circular contours; and a stacking system that stacks, in a single planar movement, the blanks at their cut positions.
  • Cut shaped blanks are used in automobile windshields, in particular windshields having a tinted band along the upper side.
  • the originally straight web of for example polyvinyl butyral interlayer
  • the so curved web is subsequently cut to produce the appropriate cut shaped blanks which can be used as interlayer between two sheets of glass for the manufacture of laminated windshields.
  • the cutting and the stacking of such blanks is generally performed manually, chiefly because of the non-linear shape of the blanks in casu two (opposite) sides are circular whereas the (opposite) cut sides are generally straight but not parallel.
  • EP-A-0.317.545 discloses a process for forming plasticized sheets by means of PVB melt extrusion combined with sheet distortion by leading the extruded sheets over frusto-conical pull rolls followed by high pressure water cutting.
  • the invention herein thus relates to an automatic cutting and stacking device for arcuately shaped blanks comprising:
  • the feeding mechanism is, in a preferred embodiment, operated by means of a feeding wheel 12 which propels a set length of film to the cutting device.
  • the cutting device 2 can be represented by a stationary bed knife 21 combined with a traversing rotating knife 22.
  • the angle between the bed knife and the centerline of the feeding wheel shall be adjustable to thus achieve perpendicular cuts for any selected radius.
  • Indexing table 33 provided with base plate 3, is lowered, in a manner synchronized to the operation of the cutting device, by increments substantially corresponding to the thickness of the cut shaped blanks.
  • the base plate supporting the formed stack of cut blanks can be rolled of the indexing table and thus serve for whatever application and/or treatment can be in order.
  • the feeding table, Fig. 1, 1 is equipped with a system that positions the advancing forward edge of the shaped film in such a way into the cutting device that the cut will produce a blank of the desired size.
  • Feeding wheel 12 propels a set length of film along a guide 11 to the cutting device.
  • Pressure roller 13 presses the shaped film against the feeding wheel to thus prevent slippage which could alter the set angle for the blank.
  • a separate guide shall be used for each radius.
  • the cutting device 2 can be represented by any type of cutting mechanism which is generally known to be suitable for the automatic cutting of plastic films.
  • the cutting mechanism generally comprises a stationary bed knife and a knife, for example a guillotine knife, or preferably a rotating knife, which runs along the bed knife to thus perform a scissors cut.
  • a stationary bed knife 21 combined with a traversing rotating knife 22.
  • the position, particularly the rotational orientation, of the cutting unit comprising the stationary bed knife and the counter-knife can be adjusted independently of and in relation to the feeding table by means of any suitable mechanism routinely available such as a vertical axis.
  • the angle between the bed knife and the center line of the feeding wheel is adjustable consequently to allow a perpendicular cut for all radii.
  • the said angle is, for shaped films having a radius between 1 and 8 meters, from 0° to about 18°. Differently expressed, the cutting angle is such that the cut is effected to yield a cut perpendicular to the edges of the contoured film.
  • the feeding wheel 12 is located as close as practical to the bed knife i.e. the exit border of the feeding table 1.
  • the blanks as they are cut from the contoured film are collected on base plate 3.
  • the contoured film is passed through the cutting device via the slide plate 31 to the base plate until the selected length to be cut is reached.
  • the cut separates the blank from the contoured film.
  • the cut blanks are then superposed on the base plate.
  • the indexing table 33 is lowered in a manner synchronized to the operation of the cutting device.
  • the indexing increments substantially correspond to the thickness of the cut shaped films.
  • the increments can correspond to the thickness of one or more cut shaped blanks. It was found that (individual) indexing increments corresponding to two to ten times the thickness of the cut shaped blanks can be preferred.
  • the slide plate 31 serves to overcome the height difference between bed knife 21 and base plate 3.
  • the slide plate is permanently attached to the indexing table 33.
  • the top of the indexing table is equipped with rollers 32 to thus facilitate the handling of the base plate, in particular the base plate onto which the cut blanks are stacked. While removing the base plate with the blanks, the small section of the blanks resting on the slide plate, follow the movement of the base plate to thus form a square stack of blanks after having left the slide plate.
  • the base plate carrying the stack of cut blanks is now ready for use on the laminating line or whatever application may be in order.
  • a very preferred feeding table herein can be represented by the treatment table in accordance with copending European patent application EP-A-97870135.7, filed September 12, 1997.
  • the shaped films which can be handled by means of the automatic cutting and stacking device herein are preferably represented by plasticized polyvinyl butyral interlayer films. Such films can be shaped by known manufacturing techniques most preferably in accordance with the dual umbrella shaper technology as described in EP-A-0.685.316.

Landscapes

  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Pile Receivers (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (6)

  1. Automatische Schneid- und Stapelvorrichtung für gebogen geformte Rohlinge enthaltend:
    a) einen Zuführtisch (1), der mit einem Zuführrad (12) versehen ist, und mit dem eine vorgegebene Länge einer gebogen geformten Folie einer Schneidevorrichtung zugeführt werden kann;
    b) eine Vorrichtung (2), mit der die geformte Folie in Rohlinge geschnitten wird; und
    c) eine Stapelvorrichtung, die einen Schalttisch (33) mit daran angefügter Gleitplatte (31) und einer Basisplatte (3) enthält.
  2. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass der Zuführtisch (1) mit einer Andruckrolle (13) versehen ist und die Schneideeinheit ein stationäres Tischmesser (21) enthält, das mit einem querverlaufenden rotierenden Messer (22) kombiniert ist.
  3. Vorrichtung nach Anspruch 2,
    dadurch gekennzeichnet, dass der Zuführtisch zusätzlich mit einer Führung (11) versehen ist.
  4. Vorrichtung nach Anspruch 2,
    dadurch gekennzeichnet, dass die Schneideeinheit über einen Bereich, der durch einen Winkel von 0° bis 18° definiert ist, unabhängig in Relation zu dem Zuführtisch einstellbar ist.
  5. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass der Schalttisch synchron zu dem Schneidevorgang um Schalteinheiten erniedrigt werden kann, die der zwei- bis zehnfachen Dicke eines geschnittenen geformten Rohlings entsprechen.
  6. Verwendung der automatischen Schneid- und Stapelvorrichtung gemäß einem der Ansprüche 1 bis 5, zur Herstellung von geschnittenen geformten Rohlingen aus einer geformten plastifizierten Folie aus Polyvinylbutyral.
EP98948927A 1997-09-23 1998-09-08 Automatische schneid- und stapelvorrichtung für geformte werkstücke und verfahren zur verwendung derselben Expired - Lifetime EP1017607B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98948927A EP1017607B1 (de) 1997-09-23 1998-09-08 Automatische schneid- und stapelvorrichtung für geformte werkstücke und verfahren zur verwendung derselben

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP97870144A EP0905073A1 (de) 1997-09-23 1997-09-23 Automatische Schneid- und Stapelvorrichtung für geformten Werkstücke und Verfahren zur Verwendung derselben
EP97870144 1997-09-23
PCT/EP1998/005678 WO1999015451A1 (en) 1997-09-23 1998-09-08 Automatic cutting and stacking device for shaped blanks and method of use
EP98948927A EP1017607B1 (de) 1997-09-23 1998-09-08 Automatische schneid- und stapelvorrichtung für geformte werkstücke und verfahren zur verwendung derselben

Publications (2)

Publication Number Publication Date
EP1017607A1 EP1017607A1 (de) 2000-07-12
EP1017607B1 true EP1017607B1 (de) 2003-03-26

Family

ID=8231043

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97870144A Withdrawn EP0905073A1 (de) 1997-09-23 1997-09-23 Automatische Schneid- und Stapelvorrichtung für geformten Werkstücke und Verfahren zur Verwendung derselben
EP98948927A Expired - Lifetime EP1017607B1 (de) 1997-09-23 1998-09-08 Automatische schneid- und stapelvorrichtung für geformte werkstücke und verfahren zur verwendung derselben

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97870144A Withdrawn EP0905073A1 (de) 1997-09-23 1997-09-23 Automatische Schneid- und Stapelvorrichtung für geformten Werkstücke und Verfahren zur Verwendung derselben

Country Status (11)

Country Link
EP (2) EP0905073A1 (de)
JP (1) JP2001517593A (de)
KR (1) KR100566782B1 (de)
CN (1) CN1079363C (de)
AT (1) ATE235415T1 (de)
AU (1) AU732555B2 (de)
BR (1) BR9812379A (de)
DE (1) DE69812660T2 (de)
DK (1) DK1017607T3 (de)
ES (1) ES2193560T3 (de)
WO (1) WO1999015451A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA920319A (en) * 1969-11-28 1973-02-06 Ford Motor Company Of Canada Method of expanding a pliable material
US4554713A (en) * 1982-09-07 1985-11-26 Ppg Industries, Inc. Apparatus for differentially stretching, aligning and cutting sheet material
US5137673A (en) * 1987-11-17 1992-08-11 Monsanto Company Process for forming plasticized polyvinyl butyral sheet
DE19537173C1 (de) * 1995-10-06 1996-12-19 Voith Sulzer Papiermasch Gmbh Streifenabschlageinrichtung

Also Published As

Publication number Publication date
ATE235415T1 (de) 2003-04-15
JP2001517593A (ja) 2001-10-09
KR100566782B1 (ko) 2006-04-03
DE69812660T2 (de) 2004-02-05
DE69812660D1 (de) 2003-04-30
AU732555B2 (en) 2001-04-26
EP1017607A1 (de) 2000-07-12
AU9537598A (en) 1999-04-12
BR9812379A (pt) 2000-09-12
EP0905073A1 (de) 1999-03-31
DK1017607T3 (da) 2003-06-23
CN1079363C (zh) 2002-02-20
WO1999015451A1 (en) 1999-04-01
ES2193560T3 (es) 2003-11-01
KR20010023857A (ko) 2001-03-26
CN1270566A (zh) 2000-10-18

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