WO2005108257A1 - Procede et appareil permettant de separer et de transporter un nombre predetermine d'objets plats - Google Patents

Procede et appareil permettant de separer et de transporter un nombre predetermine d'objets plats Download PDF

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Publication number
WO2005108257A1
WO2005108257A1 PCT/EP2005/003511 EP2005003511W WO2005108257A1 WO 2005108257 A1 WO2005108257 A1 WO 2005108257A1 EP 2005003511 W EP2005003511 W EP 2005003511W WO 2005108257 A1 WO2005108257 A1 WO 2005108257A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriages
pair
pack
conveying surface
racks
Prior art date
Application number
PCT/EP2005/003511
Other languages
English (en)
Inventor
Angelo Bartesaghi
Roberto Perego
Original Assignee
Omet 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 Omet S.R.L. filed Critical Omet S.R.L.
Priority to EP05753644A priority Critical patent/EP1742862A1/fr
Priority to BRPI0510607-9A priority patent/BRPI0510607A/pt
Priority to US11/587,451 priority patent/US20080191408A1/en
Priority to RU2006138735/11A priority patent/RU2006138735A/ru
Publication of WO2005108257A1 publication Critical patent/WO2005108257A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form

Definitions

  • the present invention refers to a method and to a device for separating and conveying towards a packaging station a predetermined number of flat objects, such as strips or sheets of paper set down by a folding machine, such as a machine for forming table tissues. More in particular, the present invention concerns the separation and the transfer of strips or of sheets of paper during setting down or formation thereof to obtain in a mechanized manner packs comprising a predetermined number of table tissues or the like.
  • Manufacture of table tissues is currently done by means of folding machines, which essentially comprise two counter-rotating rollers, pushing means and a cutting blade.
  • the paper web reaching the rollers from the master roll is gripped by a gripper present on one of the counter-rotating rollers and pulled on the surface of the mentioned roller, up to a certain position in which the gripper releases its grip leaving a folded flap.
  • a similar gripper present on the other roller in turn performs a similar operation, forming, an identical flap on the other side downstream from the pair of rollers and so on in succession, so as to put down flaps of paper, one. after another to the right, and ;to. 'the left downstream of the rollers to form a zigzag folded paper web.
  • Pushing means consisting of curved rods or the like are housed in. appropriate .recessed seats formed on the. side surface of the rollers and are driven out of the seats after formation of each flap, moving the flaps away from the folded web to make room each time for the incoming new flap.
  • the pushing means press the flaps against a blade, which cuts the folded web in half, dividing it into two piles of table tissues side by side.
  • Separating devices are known in the form of fingers which are inserted into the pile of table tissues to separate a certain number of tissues so as to form a pack containing a small number of tissues which is picked up with appropriate grippers or tipped over on the plain of 90°.
  • this separating device proves inadequate for separating and in particular for picking up and for conveying a large number of tissues towards a packaging station for the formation of family-size packs, that is to say of packs containing a large number of tissues.
  • the operator in order to form family-size packs, the operator must manually separate and pick up the tissues in the packaging station with a resulting waste of time and of labour and a slowing of the production cycle of the machine.
  • Object of the present invention is to eliminate the drawbacks of the prior art by providing a method and a device for separating and for conveying towards the packaging a predetermined number of flat objects, such as sheets of paper, particularly tissues, that are able to automate and to speed up the production cycle of the packs of flat objects.
  • Another object is to provide such a method and such a device that are particularly suitable to be employed for the production of family-size packs consisting of a large number of flat obj ects.
  • Yet another object is to provide such a method and such a device that are highly versatile and suitable to be applied to various types of machines for the production of flat objects, such as sheets of paper, table tissues and the like.
  • Yet another object is to provide such a device that is inexpensive and simple to make.
  • the device for separating and for conveying towards a packaging station a predetermined number of flat objects, fed in piles from a folding unit comprises:
  • the racks are operated so as to separate a predetermined number of flat objects from a pile being formed, to form a pack between a pair of racks supported by a respective pair of carriages which are made to translate on their guides so as to convey the pack towards the packaging station.
  • the carriages of a pair can preferably be made integral with each other, so as to operate a single carriage to convey the pack comprised between the two racks supported by the two carriages.
  • Figure 1 is a top plan view, partially broken away, showing a machine for the production of table tissues provided with the separating and conveying device according to the invention
  • Figure 2 is a side elevational view of the machine of Figure 1, partially broken away;
  • Figure 3 is an enlarged cross sectional view, taken along the plane of section III-i ⁇ of
  • Figure 4 is an enlarged cross sectional view, taken along the plane of section IV-IV of Figure 1, showing the packaging station of the machine for the production of tissues of
  • Figure 5 is a perspective view showing diagrammatically the separating and conveying device according to the invention in an initial step of the cycle;
  • Figure 6 is a diagrammatic perspective view, like Figure 5, in which the separating and conveying device has performed the separation of two groups of table tissues;
  • Figure 7 is the enlarged view of a detail of Figure 6;
  • Figure 8 is a diagrammatic perspective view, like Figure 6, in which the separating and conveying device has performed the transfer of two groups of table tissues into the packaging station;
  • Figure 9 is a side elevational view of Figure 8, but showing the step of compressing the packs of table tissues
  • Figure 10 is an enlarged perspective view rotated 180° with respect to Figure 8, showing the packaging station in the step of compressing two packs of table tissues;
  • Figure 11 is a view like Fig. 10, but in the step of ejecting the first pack of table tissues;
  • Figure 12 is a view like Figure 11, but in the step of moving the second pack of table tissues;
  • Figure 13 is a view like Figure 12, but in the step of ejecting the second pack of table tissues.
  • Figure 14 is a perspective view like Figure 8, in which the packaging station is in the step of ejecting the second pack of table tissues.
  • the machine 100 shown in the figures comprises two parallel production lines, each comprising:
  • separating and conveying device 2 for the separation of the table tissues into predetermined groups and for the transfer of said groups
  • a packaging station 5 for compressing said groups of table tissues into packs
  • a conveyor 7 shared by the two production lines, for conveying the packs towards a packaging station.
  • the folding unit 1 comprises a pair of counter-rotating rollers 10 and 10' disposed with vertical axes.
  • the paper web 11 coming from a master roll and already folded in two by a tip (not shown) disposed upstream passes through the rollers 10 and 10' which, by means of grippers, zigzag fold it in a known manner.
  • a first folded flap 12, opposite the roller 10, and a second folded flap 12', opposite the roller 10' are formed.
  • the already formed flaps 12 and 12' are pushed forward by means of pressers formed by arched bars housed in circumferential recessed seats in the surface of the rollers 10 and 10'.
  • the pressers push the flaps towards a cutting blade (112, 112') disposed longitudinally so as to divide the flaps into two piles of table tissues 13 and 13' separated and placed side by side.
  • the piles 13 and 13' of table tissues accumulate on a horizontal collecting surface 14 which continues in a slightly downwardly sloping conveying surface 20, forming part of the separating and conveying device 2.
  • Each separator- pusher 19 comprises a block 15 integral with the frame of the machine that supports a cylinder 16 within which a rod 17 is mounted slidably and rotatably with its axis parallel to the direction of travel of the tissues.
  • the head of the rod 17 is integral with one end of a pushing and separating plate 18.
  • the rod 17 can pass from a retracted position inside the cylinder 16 to an extracted position outside the cylinder 16 and the plate 18 can pass, by a 90° rotation of the rod 17, from a resting position in which it protrudes laterally outward to a working position in which it protrudes downward, dividing the relative pile 13 and 13' transversally.
  • the sloping conveying surface 20 comprises a plurality of longitudinal through slots 21, equidistant with respect to a midline. Even if only four slots 21 are illustrated in Figure 1 for reasons of clarity, the longitudinal slots 21 are preferably six in number as shown in Figures 3 and 5.
  • the device 2 comprises a linear guide consisting of a pair of guide bars 22 and 22' having a substantially rectangular cross section.
  • the guide bars 22 and 22' are disposed parallel to each other on a plane parallel to the sloping conveying surface 20 and are spaced apart from each other so as to leave a space 23.
  • the guide bars 22 and 22' are disposed parallel to each other on a plane parallel to the sloping conveying surface 20 and are spaced apart from each other so as to leave a space 23.
  • each carriage 24 has a set of upper and lower wheels 25 which run on rails 125 disposed respectively on the top and on the bottom surface of each guide bar 22 and 22'.
  • the rear carriages (24a, 24a', 24c, 24c') of each pair have at the bottom a block 26 which integrally supports a rod 27, circular in section, disposed beneath the guide bars 22 and 22' and with its axis parallel to the axis of the guide bars
  • the front carriages (24b, 24b', 24d, 24d') of each pair have at the bottom a cylindrical sleeve 28 which is mounted slidably on the respective rods 27.
  • Jaw means (not shown) are provided inside the sleeve 28 of the front carriages to lock the sleeve 28 on the rod 27.
  • the rods 27 can extend for a greater length with respect to that illustrated in Figures 2 and 5.
  • the front carriages (24b, 24b', 24d, 24d') are motorised independently, by means of respective belt or chain transmissions 40 ( Figure 2) driven by respective pulleys 41 disposed at the front and at the rear end of the guide bars 22 and 22'.
  • a shaft 29 of a linear actuator is mounted slidably in each carriage 24, with its axis substantially at right angles to the sloping conveying surface 20.
  • the shaft 29 can pass from a retracted position inside the carriage 24 to an extracted position in which it protrudes upward from the carriage until it arrives near the sloping conveyor surface 20.
  • transverse supporting bar 30 On the head of each shaft 29 a transverse supporting bar 30, which extends for about half the width of the sloping conveyor surface 20, cantilevers.
  • transverse supporting bars 30 of the carriages (24a, 24a', 24b, 24b') disposed on the outer sides of the guide bars 22 and 22' cantilever inwards
  • transverse supporting bars 30 of the carriages (24c, 24c', 24d, 24d') disposed on the inner sides of the guide bars 22 and 22' cantilever On each transverse supporting bar 30 is mounted a rack 31 comprising three upward protruding prongs 32, equidistant from each other and in register with the respective longitudinal slots 21 of the sloping conveying surface 20.
  • the racks 31 of the carriages mounted on the first guide bar 22 acts on a first row of three slots 21 on the conveying surface 20, whereas the racks 31 of the carriages mounted on the second guide bar 22' act on a second row of three slots 21 on the conveying surface 20.
  • the length of the prongs 32 of each rack 31 is slightly less than the length of each shaft 29 of the actuator of the carriage 24, when the shaft 29 is extracted from the respective carriage 24.
  • the sloping conveying surface 20 has a tilting terminal portion 120 hinged thereto in a pivot axis 121 and disposed beneath the packaging station 5.
  • the tilting surface 120 is moved around the pivot axis 121 by a linear actuator 122 ( Figure 2) comprising a cylinder 123 and a piston 124, in which the head of the piston 124 is integral with the end of the tilting surface 120.
  • a linear actuator 122 Figure 2 comprising a cylinder 123 and a piston 124, in which the head of the piston 124 is integral with the end of the tilting surface 120.
  • the piston 124 moves from a retracted position in which the tilting surface 120 is parallel to the sloping surface 20 to an extracted position in which the tilting surface 120 is parallel to the horizontal.
  • the conveying surface 20, which in the embodiment illustrated is mounted sloping, could also be horizontal, in which case the tilting terminal portion 120 would not be necessary.
  • the packaging station 5 will be described with the aid of Figures 1, 2, 4 and 5.
  • the packaging station 5 is disposed above the tilting surface 120 and comprises a front plate 50, a rear plate 51 and a top plate 52, to which two side plates 53 and 54 are connected integrally.
  • the front plate 50 is disposed along a vertical plane and transversally with respect to the tilting surface 120 and is moved along a vertical axis by means of a linear actuator 58 comprising a cylinder 57 and a piston 56.
  • the cylinder 57 of the actuator 58 is integral with the frame of the machine and the head of the piston 56 is made integral with the front plate 50 by means of a block 55.
  • the rear plate 51 is disposed along a vertical plane and transversally with respect to the tilting surface 120 and is moved along a horizontal axis by means of a linear actuator 59 comprising a cylinder 60 and a piston 61.
  • the cylinder 60 of the actuator 59 is integral with the frame of the machine and the head of the piston 61 is integral with the rear plate 51.
  • the top plate 52 is disposed along a horizontal plane and is moved along a vertical axis by means of a linear actuator 62 comprising a cylinder 63 and a piston 64.
  • the cylinder 63 of the actuator 62 is integral with a support 65, which is mounted transversally slidable on an arm 66 integral with the frame of the machine.
  • the head of the piston 64 is integral with the top plate 52.
  • the width of the top plate 52 is equal to about half the width of the tilting conveying surface 120 and the side plates 53, 54, which are disposed vertically in a longitudinal direction with respect to the tilting conveying surface 120, are mounted integrally at its lateral ends.
  • the actuators of the front carriages 24b and 24b', disposed on the outer sides of the guide bars 22 and 22', are operated.
  • the pistons 29 of the front carriages 24b and 24b' are raised and the respective racks 31 pass through the longitudinal slots 21 of the sloping conveying surface protruding upward therefrom.
  • the outer rear carriages 24a and 24a' are blocked on the respective guide bars 22 and 22', whilst the sleeves 28 of the front outer carriages 24b and 24b' are free to slide on the respective rods 27, drawn by the respective belt or chain 40, to allow the forward movement of the piles of table tissues 13 and 13'.
  • the separator-pushers 19 come into action.
  • the separating plates 18 of the pushers 19 rotate downwards, separating the two packs 113 and 113' containing a predetermined number of table tissues.
  • the pistons 17 of the pushers subsequently move forwards pushing the packs 113 and 113' forwards and slightly compressing them.
  • the pair of outer carriages 24a and 24b and the rod 27 form a first monolithic unit which can translate on the first bar 22, whilst the other pair of outer carriages 24a' and 24b' and the relative rod 27 form a second monolithic unit which can translate on the second bar 22', driven by the respective belt or chain transmissions 40, so as to convey the packs 113 and 113' between the respective racks 31, on the sloping conveyor surface 20, up to the tilting conveyor surface 120 in the packaging station 5.
  • the tilting conveyor surface 120 is inclined with the same slope as the sloping conveyor surface 20.
  • the two inner front carriages 24d and 24d' are made to translate backwards, drawing with them also the respective rear inner carriages 24c and 24c', until they reach the beginning of the conveyor surface 20, in position awaiting a new pack (Fig. 7).
  • the front plate 50 is in its raised position to allow the two packs 113 and 113' to pass, whereas the upper plate 52 is in its lowered position, so that the first pack 113 is situated between the side plates 53 and 54 and the side plate 54 acts as a dividing wall between the first pack 113 and the second pack 113'.
  • the actuator 122 ( Figure 2) of the tilting conveyor surface 120, which is brought into a horizontal position as shown in Figure 9, is operated.
  • the front plate 50 is lowered by means of the actuator 58 and the piston 61 is extracted by means of the actuator 59, pushing the rear plate 51 against the head of the packs 113 and 113' and compressing them, since the end of the packs 113 and 113' abuts against the front plate 50.
  • the racks 31 of the outer carriages 24a, 24a', 24b, 24b'
  • Figure 10 illustrates the compressing operation on the packs 113 and 113' from another angle.
  • the pistons 56, 61 and 64 of the respective actuators 58, 59 and 62 of the front plate 50, of the rear plate 51 and of the top plate 52 are in the extracted position and the support 65 of the actuator 62 is in the end-of-stroke position towards the outside of the machine on the transverse arm 66.
  • the support 65 of the actuator 62 can be operated in translation by a pneumatic actuator without a rod.
  • the actuator 62 is operated and then the support 65 translates along the transverse arm 66 towards the inside of the machine.
  • the pack 113' which is on the inside position is pushed sideways by the lateral ejection plate 54 which ejects it from the tilting surface 120 transferring it onto the central conveyor 7 ( Figure 1).
  • the actuator 62 is operated, which retracts the piston 64 raising the upper plate 52 together with the two side plates 53 and 54. Subsequently the actuator 62 is operated, which makes the support 65 of the actuator 62 translate outwards on the transverse arm 66, until it is brought into the end-of-stroke position as shown in Figure 12. In this situation the remaining pack 113 is on the tilting surface 120 in the inside position, ready to be ejected onto the central conveyor 7.
  • the piston 64 of the actuator 62 is extracted, causing the upper plate 52 and the two side plates 53 and 54 to be lowered.
  • the actuator 62 is then operated, causing the support 65 of the actuator 62 to translate inwards on the transverse arm 66.
  • the innermost side plate 54 pushes the pack 113, ejecting it from the tilting surface 120 on the central conveyor 7.
  • Figure 14 illustrates the position of the carriages 24 during the step of ejecting the last pack 113. It must be considered that during the step of ejecting the packs 113' and 113, two new packs 213 and 213' have been created and are situated between the racks 31 of the two pairs of inner carriages 24c, 24d and 24c', 24d'.
  • the front inner carriages 24d and 24d' are made to advance by means of their chain transmissions, drawing with them the inner rear carriages 24c and 24c' and the new packs 213 and 213', which reach the input of the packaging station 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Special Conveying (AREA)

Abstract

L'invention concerne un dispositif (2) permettant de séparer et de transporter en direction d'une station d'emballage (5) un nombre prédéterminé d'objets plats amenés en piles (13, 13') par une unité de pliage (1). Ce dispositif (2) comprend une surface de transport (20, 120) possédant plusieurs fentes (21), plusieurs patins ou plateaux (24) qui soutiennent plusieurs grilles (31) mobiles d'une position abaissée à une position élevée dans laquelle les broches (32) de ces grilles passent à travers les fentes (21) de la surface de transport (20, 120) pour être en saillie sur cette surface. Un nombre prédéterminé d'objet plats sont séparés d'une pile (13, 13') formée pour constituer un paquet (113, 113') entre une paire de grilles (31) soutenues par une paire de plateaux (24), lesquels sont conçus pour transporter le paquet (113, 113') en direction de la station d'emballage (5).
PCT/EP2005/003511 2004-05-07 2005-04-04 Procede et appareil permettant de separer et de transporter un nombre predetermine d'objets plats WO2005108257A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05753644A EP1742862A1 (fr) 2004-05-07 2005-04-04 Procede et appareil permettant de separer et de transporter un nombre predetermine d'objets plats
BRPI0510607-9A BRPI0510607A (pt) 2004-05-07 2005-04-04 dispositivo e método para separar e transportar em direção a uma estação de acondicionamento, um predeterminado número de objeto planos
US11/587,451 US20080191408A1 (en) 2004-05-07 2005-04-04 Method and Device for Separating and Conveying a Number of Flat Objects
RU2006138735/11A RU2006138735A (ru) 2004-05-07 2005-04-04 Способ и устройство для отделения и перемещения на упаковку заданного количества плоских предметов, таких, как листы бумаги, в частности столовых бумажных салфеток

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2004A000927 2004-05-07
IT000927A ITMI20040927A1 (it) 2004-05-07 2004-05-07 Procedimento e dispositivo per separare e trasferire verso l'impacchettamento un predeterminato numero di oggetti piatti quali fogli di carta in particolare tovaglioli

Publications (1)

Publication Number Publication Date
WO2005108257A1 true WO2005108257A1 (fr) 2005-11-17

Family

ID=34970799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/003511 WO2005108257A1 (fr) 2004-05-07 2005-04-04 Procede et appareil permettant de separer et de transporter un nombre predetermine d'objets plats

Country Status (7)

Country Link
US (1) US20080191408A1 (fr)
EP (1) EP1742862A1 (fr)
CN (1) CN1950281A (fr)
BR (1) BRPI0510607A (fr)
IT (1) ITMI20040927A1 (fr)
RU (1) RU2006138735A (fr)
WO (1) WO2005108257A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN101885424A (zh) * 2010-07-20 2010-11-17 柳慧 一种吊篮堆码机

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Publication number Priority date Publication date Assignee Title
GB2483284B (en) * 2010-09-03 2014-06-18 Pacepacker Services Ltd A packing system
EP2471716B1 (fr) * 2010-12-30 2014-04-09 C.G. Bretting Manufacturing Co., Inc. Séparateur de serviettes dans un paquet en vrac
CN103723299A (zh) * 2012-10-10 2014-04-16 鸿富锦精密工业（深圳）有限公司 包边装置
DE102012022228A1 (de) * 2012-11-14 2014-05-15 Winkler + Dünnebier Gmbh Verfahren und Vorrichtung zum Bilden von Produktstapeln von gefalzten oder ungefalzten Produktzuschnitten aus Papier, Zellstoff oder dergleichen
CN112938562B (zh) * 2021-02-09 2023-03-24 东森智造(东莞)设备有限公司 叠收装置、生产设备及叠收处理方法

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EP0553724A1 (fr) * 1992-01-30 1993-08-04 BIELOMATIK LEUZE GmbH + Co. Procédé et dispositif pour fabriquer des piles bien déterminées de feuilles pliées ou non-pliées ou d'objets sous forme de feuilles
US5393196A (en) * 1991-05-28 1995-02-28 Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Kg Method and apparatus for stacking of envelopes or the like
EP0741100A2 (fr) * 1995-05-05 1996-11-06 CIVIEMME S.r.l. Chassis pour un empileur de cahiers

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CH671566A5 (fr) * 1986-09-26 1989-09-15 Oskar Roth
US4861225A (en) * 1987-04-06 1989-08-29 Dorner Mfg. Corp. Apparatus for stacking articles in a side-by-side relation
US5421700A (en) * 1993-04-29 1995-06-06 Tension Envelope Corporation Envelope flap up pick and place apparatus and method
US5540422A (en) * 1994-10-24 1996-07-30 Baldwin Technology Corporation Stacker-bundler transfer apparatus
US5720156A (en) * 1995-08-25 1998-02-24 Roberts Systems, Inc. Case packing apparatus and method
FR2777876B1 (fr) * 1998-04-24 2000-06-30 Realisations Etudes Et Commerc Dispositif d'empilage et de transfert de cahiers imprimes sous forme de cartouches
EP1405809B1 (fr) * 2002-10-02 2009-07-01 Müller Martini Holding AG Dispositif pour former des colis de produits empilés

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US5393196A (en) * 1991-05-28 1995-02-28 Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Kg Method and apparatus for stacking of envelopes or the like
EP0553724A1 (fr) * 1992-01-30 1993-08-04 BIELOMATIK LEUZE GmbH + Co. Procédé et dispositif pour fabriquer des piles bien déterminées de feuilles pliées ou non-pliées ou d'objets sous forme de feuilles
EP0741100A2 (fr) * 1995-05-05 1996-11-06 CIVIEMME S.r.l. Chassis pour un empileur de cahiers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101885424A (zh) * 2010-07-20 2010-11-17 柳慧 一种吊篮堆码机
CN101885424B (zh) * 2010-07-20 2013-09-25 柳慧 一种吊篮堆码机

Also Published As

Publication number Publication date
BRPI0510607A (pt) 2007-10-30
US20080191408A1 (en) 2008-08-14
EP1742862A1 (fr) 2007-01-17
ITMI20040927A1 (it) 2004-08-07
RU2006138735A (ru) 2008-06-20
CN1950281A (zh) 2007-04-18

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