WO1999011552A1 - Ethode de mise a niveau et/ou de mise en rotation d'une ou de plusieurs piles de materiau en feuille placees sur une assise ou une palette et dispositif independant aux fins de la mise en oeuvre de ladite methode - Google Patents

Ethode de mise a niveau et/ou de mise en rotation d'une ou de plusieurs piles de materiau en feuille placees sur une assise ou une palette et dispositif independant aux fins de la mise en oeuvre de ladite methode Download PDF

Info

Publication number
WO1999011552A1
WO1999011552A1 PCT/IB1998/001365 IB9801365W WO9911552A1 WO 1999011552 A1 WO1999011552 A1 WO 1999011552A1 IB 9801365 W IB9801365 W IB 9801365W WO 9911552 A1 WO9911552 A1 WO 9911552A1
Authority
WO
WIPO (PCT)
Prior art keywords
stack
frame
forks
carriage
independent unit
Prior art date
Application number
PCT/IB1998/001365
Other languages
English (en)
Inventor
Alberto Piani
Daniele Piani
Original Assignee
Diesse S.R.L.
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 Diesse S.R.L. filed Critical Diesse S.R.L.
Publication of WO1999011552A1 publication Critical patent/WO1999011552A1/fr

Links

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
    • B65H31/00—Pile receivers
    • B65H31/34—Apparatus for squaring-up piled articles
    • B65H31/40—Separate receivers, troughs, and like apparatus for knocking-up completed piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H15/00—Overturning articles
    • B65H15/02—Overturning piles

Definitions

  • the present invention relates to a method for levelling and/or turning one or more stacks of sheet material, arranged on a base or pallet, said method implemented by means of a mobile independent unit able to allow the movement of a base so as to transfer the stacks from a first location to a second location, at a distance from the first.
  • stack of sheet material refers to one or more stacks of sheets made of paper, plastic, laminate or other materials, or one or more stacks of groups of paper, plastic, laminate or other materials suitably arranged in reams.
  • the technical sector already comprises fixed installation apparatus for levelling and/or turning stacks of sheet material, for example, stacks of sheets made of paper, card or similar materials .
  • Such apparatus must be supplied with materials and unloaded, using means of transport to transfer the stacks from one location to another, which must carry the stacks to a holding station where the apparatus is installed.
  • the main aim of the present invention is to level the sheets or layers of a stack, or to level and turn the stacks (one or more) arranged on a pallet, by means of an independent unit and with operating stages that allow the sheets in the stack to be straightened up with reference to at least two stops, making contact with two adjacent sides of the stack, making use of the simultaneous action of a vibrating plate and air jets directed in such a way that they cross the stack of material to be levelled and/or turned.
  • Another aim of the present invention is to provide an independent unit for the implementation of the method disclosed, by means of which the stacks of sheet material, arranged on a pallet, can be moved from one location to another using, for their movement, picking up and setting down, the same means which pick up and support the stacks so as to allow them to be levelled and/or turned.
  • the turning of the stacks (one or more) arranged on a pallet is effected by means of a pair of opposite forks, for raising the base and holding the stack together as it is turned, supported, in bracket-like fashion, by a first frame whose central section is hinged to a second frame, the top of which is hinged to a supporting structure which is part of a mobile independent unit, consisting of a motor-driven carriage and equipped with a guide device.
  • the second frame can rotate from a first position, in which the stack is vertical, to a second position, in which the stack is horizontal and on a plane above the top part of the carriage structure.
  • the first frame With the second frame in this second (horizontal) position, the first frame, and so also the stack, can be rotated through 180 fi relative to the second frame, about a vertical axis. Said 180 2 rotation occurs in two 90 2 stages, separated by a rotation of the second frame relative to the mobile unit supporting structure, passing from said horizontal position to a temporary intermediate angled position between the second position and the first position, in which the stack is positioned as follows: with one side resting on a vibrating plate, supported by the first frame and located between and to the side of the opposite grippers on a plane outside the space that they delimit; and crossed by air jets blown from nozzles supported by said first frame.
  • the stack may be returned to its initial position, or may be rotated through a further 90 a to turn over the stack, this operation being completed by subsequently bringing the second frame to the first position in which the forks, inverted relative to the starting position, can release the stack.
  • the method and independent unit disclosed by the present invention are advantageous in achieving the aim of levelling and/or turning stacks of sheet material, arranged on a base (pallet) at the location of the base, with the possibility, if necessary, of moving the base from one location to another, for this transfer using the same operating unit which allows the stack to be turned .
  • a further advantage of the method and independent unit disclosed in the present invention is the fact that the combined action of the vibrating plate and the nozzles which blow air across the stack of sheet material allows a rapid alignment (or correct levelling) of the sheets in the stack relative to two adjacent references; this facilitates the subsequent correct pick up of individual sheets by pick up means designed, for example, to feed them, individually and automatically, at the desired rates, to subsequent processing lines.
  • Figures 1 to 7 are schematic views of the subsequent stages of turning a stack of sheet material according to the present invention.
  • Figure 1 illustrates the starting condition valid for both the simple levelling of the sheet material in the stack, or the levelling and subsequent turning of the stack.
  • the numeral 1 indicates as a whole the independent unit disclosed by the present invention, comprising a motor-driven carriage, which moves on wheels 2 and is equipped with a guide device 3 for its movements on the floor P3.
  • the carriage 1 is fitted with a pair of forks 4 - 4', mounted in bracket-like fashion on a first frame 5.
  • the forks 4 - 4' can be mounted on the frame 5 using conventional methods known to experts in the trade, and can be moved towards and/or away from one another depending on the size of the stack P of sheet material to be handled.
  • the centre of the first frame 5 is hinged, by means of a thrust bearing 6a and on an axis 6, to a second frame 7 positioned between the first frame 5 and the supporting structure of the carriage 1.
  • the first frame 5 and second frame 7 are connected to one another in such a way that the former cannot normally rotate relative to the latter. This connection is made in such a way that it can be temporarily disengaged and, by means of the thrust bearing 6a, the first frame 5 can assume the following positions relative to the second frame 7 : a first position, in which the first frame and second frame are completely overlapping; a second position, in which the first frame overlaps the second frame to form a cross shape, following a 90 2 rotation relative to the first position; a third position, in which the first and second frames are again completely overlapping, following a second 90 2 rotation of the first frame relative to the first position and in the same direction as the first rotation.
  • the first frame 5 can be returned to the starting position and the connection between said first frame and the second frame 7, which prevents their reciprocal rotation, can be restored by the operator.
  • the second frame 7 is hinged at the top of said carriage 1 supporting structure, about an axis 8 and is connected to one end of a hydraulic piston 14 whose cylinder is attached at the base of the carriage 1 supporting structure.
  • the numeral 10 is used to label a vibrating plate which, by means of a third frame, comprising "L" - shaped bars 11 - 12 and guides 15 for the extension 12 of said bars, is attached to the first frame 5.
  • the vibrating plate 10 is positioned between the forks 4 - 4' and outside the space delimited by the forks.
  • the stable position of the vibrating plate 10 relative to the forks 4 - 4' can be adjusted by hydraulic pistons (or other means known to experts in the trade), not illustrated in the accompanying drawings, with one side connected to the bars 11 and the other side connected to the first frame 5, which allow the bars 12 to slide relative to the guides 15, in both directions.
  • the position of the vibrating plate 10 is adjusted according to the size of the stack of sheet material to be handled.
  • the centre and entire length of the first frame 5 is fitted with at least one set of nozzles (not illustrated in the accompanying drawings), connected to a compressed air source supported by the control unit of the carriage 1; the nozzles are angled in such a way that they can blow air towards the stack P held between the forks 4 - 4 ' .
  • the stack will be arranged on a base (or pallet) PI which will be picked up by the forks 4. If the stack P is also to be turned, a second base P2 must also be envisaged at the top of the stack P and will be picked up by the forks 4' .
  • the operator disengages the connection which normally prevents rotation of the first frame 5 relative to the second frame 7, and rotates said first frame 5 through 90 2 relative to the second frame 7 (anti-clockwise relative to Figure 2) .
  • the connection which prevents rotation between the first frame 5 and second frame 7 is restored and the vibrating plate 10 is in a position parallel with the axis 8 on which the second frame 7 is hinged to the carriage 1 supporting structure (see Figure 3) .
  • the stage in which the sheet material in the stack P is levelled begins.
  • the hydraulic piston 14 receives a command which recalls the piston into the cylinder, bringing the stack P into a position in which it is angled relative to the previous horizontal position, and its second side, adjacent to the side resting on the frame 5 substantially rests on the vibrating plate 10 (see Figure 4) .
  • the vibrating plate 10 is activated for a time which is preset or can be programmed by the operator, and the nozzles are connected to the compressed air source in the carriage 1 control unit.
  • the sheet material in the stack P is mechanically levelled relative to the vibrating plate 10 and the resting surface provided by the first frame 5.
  • the connection between the nozzles and the compressed air source is interrupted, the vibrator to which the vibrating plate 10 is connected is switched off and the piston 14 is activated in the opposite direction to that previously used, returning the stack P to the horizontal position, as illustrated in Figure 5.
  • the first frame 5 is brought to the position illustrated in Figure 2, then the entire apparatus is brought to the starting position illustrated in Figure 1; in this position, the stack P can be unloaded on the spot or, by starting up the drive means and carriage 1 guide, transferred to the stores or to an operating unit for further processing of the sheet material in the stack P.
  • the stack P is moved from the horizontal position to a vertical position, in which it is turned over relative to the starting vertical position, as illustrated in Figure 7, where the forks 4' support the stack from below, whilst the forks 4 hold the top of the stack P.
  • the stack P can be released on the spot or, by means of the carriage 1, transferred to the stores or to an operating unit for subsequent processing of the sheet material in the stack P.
  • the axis 8 on which the second frame 7 is hinged to the carriage 1 supporting structure is on a plane V which lies inside the carriage 1 support plane, delimited by the wheels 2.
  • the barycentre of the independent unit disclosed in preferably on said plane V.
  • the present invention may be subject to numerous modifications and variations, all encompassed by the original design concept. Moreover, all components may be replaced with technically equivalent parts .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

On utilise, pour mettre à niveau et/ou faire tourner une ou plusieurs piles de matériau en feuille placées sur une assise ou une palette, deux fourches agissant à l'opposé l'une de l'autre afin de soulever l'assise et de maintenir la pile en place durant le mouvement de rotation. Ces fourches sont tenues, par une prise du type à pincement, par des mécanismes appartenant à un dispositif indépendant de déplacement. Ce dispositif permet de faire passer la pile de la position verticale à la position horizontale, position dans laquelle elle repose sur un premier coté et peut tourner de 90° autour d'un axe vertical, après quoi elle revient à sa position initiale ou effectue une rotation de 180° pour revenir à une position verticale dans laquelle elle est renversée par rapport sa position initiale. Cette rotation à 180° se fait en deux étapes successives, comportant chacune une rotation à 90°, entre lesquelles intervient une mise à l'oblique momentanée du plan sur lequel repose la pile. On utilise cette mise à l'oblique lorsque la pile effectue une rotation de seulement 90°, de sorte que le second coté de la pile contigu du premier repose momentanément sur la plaque vibrante et que la pile se trouve placée dans une position dans laquelle des jets d'air la traversent simultanément, ce qui facilite l'alignement des feuilles constituant la pile, un premier coté des feuilles reposant sur la plaque vibrante et un second coté venant appuyer contre la butée constituée par le mécanisme de transfert de pile.
PCT/IB1998/001365 1997-09-02 1998-09-01 Ethode de mise a niveau et/ou de mise en rotation d'une ou de plusieurs piles de materiau en feuille placees sur une assise ou une palette et dispositif independant aux fins de la mise en oeuvre de ladite methode WO1999011552A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97BO000519A IT1294173B1 (it) 1997-09-02 1997-09-02 Metodo per pareggiare e/o rivoltare una o piu' pile di materiale in foglio ordinate su una pedana o pallet e unita' autonoma per
ITBO97A000519 1997-09-02

Publications (1)

Publication Number Publication Date
WO1999011552A1 true WO1999011552A1 (fr) 1999-03-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/001365 WO1999011552A1 (fr) 1997-09-02 1998-09-01 Ethode de mise a niveau et/ou de mise en rotation d'une ou de plusieurs piles de materiau en feuille placees sur une assise ou une palette et dispositif independant aux fins de la mise en oeuvre de ladite methode

Country Status (2)

Country Link
IT (1) IT1294173B1 (fr)
WO (1) WO1999011552A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2796053A1 (fr) * 1999-07-08 2001-01-12 Windmoeller & Hoelscher Dispositif pour la mise a l'alignement droite des bords de paquets constitues de pieces rectangulaires plates
DE202011050170U1 (de) * 2011-05-18 2012-08-20 Baumann Maschinenbau Solms Gmbh & Co. Kg Rüttelvorrichtung
CN106313169A (zh) * 2015-07-08 2017-01-11 德阳市利通印刷机械有限公司 一种液压倾斜闯纸机
CN111099407A (zh) * 2019-12-24 2020-05-05 郑州市毛庄印刷厂 一种纸堆翻转机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070767A (en) * 1976-06-29 1978-01-31 Woodward Cyril H T Apparatus and method for aerating, vibrating and aligning sheets of paper and the like
JPS60100211A (ja) * 1983-11-04 1985-06-04 Matsushita Electric Ind Co Ltd プログラマブルコントロ−ラ
US5295309A (en) * 1992-12-09 1994-03-22 A.F. Machining Specialties, Inc. Jogger/aerator
US5429475A (en) * 1993-03-09 1995-07-04 Mohr; Wolfgang Jogger for straightening sheets in tiers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070767A (en) * 1976-06-29 1978-01-31 Woodward Cyril H T Apparatus and method for aerating, vibrating and aligning sheets of paper and the like
JPS60100211A (ja) * 1983-11-04 1985-06-04 Matsushita Electric Ind Co Ltd プログラマブルコントロ−ラ
US5295309A (en) * 1992-12-09 1994-03-22 A.F. Machining Specialties, Inc. Jogger/aerator
US5429475A (en) * 1993-03-09 1995-07-04 Mohr; Wolfgang Jogger for straightening sheets in tiers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 250 (P - 394) 8 October 1985 (1985-10-08) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2796053A1 (fr) * 1999-07-08 2001-01-12 Windmoeller & Hoelscher Dispositif pour la mise a l'alignement droite des bords de paquets constitues de pieces rectangulaires plates
DE202011050170U1 (de) * 2011-05-18 2012-08-20 Baumann Maschinenbau Solms Gmbh & Co. Kg Rüttelvorrichtung
CN106313169A (zh) * 2015-07-08 2017-01-11 德阳市利通印刷机械有限公司 一种液压倾斜闯纸机
CN106313169B (zh) * 2015-07-08 2018-06-15 德阳市利通印刷机械有限公司 一种液压倾斜闯纸机
CN111099407A (zh) * 2019-12-24 2020-05-05 郑州市毛庄印刷厂 一种纸堆翻转机

Also Published As

Publication number Publication date
ITBO970519A1 (it) 1999-03-02
IT1294173B1 (it) 1999-03-22
ITBO970519A0 (it) 1997-09-02

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