EP0526677A1 - Verfahren und Vorrichtung zur Zufuhr von flachen Werkstücken aus mindenstens einem Stapel zu einer Maschine - Google Patents

Verfahren und Vorrichtung zur Zufuhr von flachen Werkstücken aus mindenstens einem Stapel zu einer Maschine Download PDF

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Publication number
EP0526677A1
EP0526677A1 EP91402202A EP91402202A EP0526677A1 EP 0526677 A1 EP0526677 A1 EP 0526677A1 EP 91402202 A EP91402202 A EP 91402202A EP 91402202 A EP91402202 A EP 91402202A EP 0526677 A1 EP0526677 A1 EP 0526677A1
Authority
EP
European Patent Office
Prior art keywords
stack
conveyor
products
movement
stacks
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.)
Withdrawn
Application number
EP91402202A
Other languages
English (en)
French (fr)
Inventor
Gabriel Corradi
Charles Faucheux
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.)
CORRADI SA
Original Assignee
CORRADI SA
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 CORRADI SA filed Critical CORRADI SA
Priority to EP91402202A priority Critical patent/EP0526677A1/de
Priority to FR9200693A priority patent/FR2680164A1/fr
Publication of EP0526677A1 publication Critical patent/EP0526677A1/de
Withdrawn legal-status Critical Current

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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
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/04—Endless-belt separators
    • B65H3/042—Endless-belt separators separating from the bottom of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42322—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from bottom of the pile

Definitions

  • the invention relates to a method and a device for supplying a work station with flat products from at least one stack of such products.
  • the invention will find its application in particular in many fields of industry where it is necessary to work such flat products in different work stations.
  • One of the applications of the present invention relates to the field of cardboard where it is common to form stacks of flanks or sheets of cardboard which are then taken up and used to supply different machines such as for example cutting presses, presses to print, etc ...
  • the raw material namely the sides or sheets of cardboard
  • corrugating machines which, after cutting the strip longitudinally and transversely at the outlet of the machine, make it possible to form stacks of flat coated sheets.
  • the landslides have various causes and depend for example on the straightness of the stacking, accelerations during the movements of the stack, untimely blockages of the bottom of the stack, etc ... These landslides naturally affect the cost of returns from the finished product because the loss of time thus caused affects the labor required for the finished product.
  • a method for transferring a stack of flat products and a device for handling such a stack, the aim of which is to allow free movement at ground level between the various stations. work area and storage area by clearing the floor area and avoiding the use of roller tracks to the machine to be serviced.
  • a battery transfer cart of the "shuttle" type, which is capable of taking a battery vertically from a storage area, and of moving it to the work station avoiding the landslide during path.
  • the object of the present invention is to provide a method and a device for supplying a work station with flat products from a stack of such products which make it possible to overcome the drawbacks of existing devices, and which nevertheless allow production at high rates, while lowering the cost price of finished products.
  • One of the aims of the present invention is to propose a method and a device for supplying a work station with flat products which no longer require the displacement over long distances of the vertical piles which thus prevent their untimely collapse.
  • Another object of the present invention is to provide a method and a device for supplying a work station with flat products which have a light and retractable infrastructure in order to allow access to said work station without being hindered by the power plant.
  • One of the aims of the present invention is to apply the method and the feeding device to the cardboard sector in order to allow automatic feeding of the processing machines. Mation from a stock of sidewall or cardboard stacks, whatever their size, avoiding manual intervention, having reliable operation and minimizing the time lost and the energy consumed.
  • Another object of the present invention is to provide a method and a device for supplying a work station with flat products which admit a large number of products to be processed of non-imposed dimensions while allowing automatic centering of the stack of input products.
  • the bottom stack plate when handling the products in stacks, it is common for the bottom stack plate to be soiled, in particular by the roller conveyors of the storage store.
  • One of the aims of the present invention is to allow the evacuation of this bottom stack plate in order to prevent it from being processed by the said work station and subsequently constitutes a defective product.
  • the invention relates to a method and a device for supplying a work station with flat products from at least one stack of such products.
  • the present invention will find an advantageous use when the stacks of such products have a significant height relative to the dimensions of the support base, which influences the stability of such a stack.
  • the batteries are moved manually taking all the precautions or one proceeds mechanically, either by dividing the stack into bundles whose balance is more stable, or by transporting the stack while maintaining it to avoid that it does not collapse.
  • the solution provided by the present invention makes it possible to automate the supply of workstations and proposes an original process different from those existing, requiring minimum mechanical means, also absorbing minimum energy and reliable and safe operation, while authorizing, when desirable, free access around the workstation concerned.
  • Figures 1 and 2 illustrate in particular the method of the present invention as well as an embodiment of the device implementing said method.
  • the storage area 1 is shown empty to illustrate its structure, advantageously constituted by a traditional roller conveyor table 4, motorized or not, on which the stacks 5 of products will rest vertically.
  • the different stacks 5 are stored in a contiguous manner.
  • This arrangement advantageously makes it possible to reinforce the stability of the different stacks thanks to the contact of the lateral sides of said stacks 5.
  • the collapse of said stacks is avoided because they support each other.
  • This storage area 1 being formed, according to the method of the invention, all of said stacks 5 are moved to a separation area 6 in which a stack 7 is secured.
  • the contiguous stacks 5 are arranged in a row on the conveyor 4 and the entire row is moved, step by step, towards the separation zone 6 each time that one of the subject batteries 7 is transferred.
  • the stacks support each other during transfer and, in addition, the front face 8 of the subject stack 7 is maintained in said separation zone 6 over its height.
  • the supply device 3 of the present invention comprises at least one storage area 1 on which the said batteries 5 are arranged substantially contiguous, as well as means for taking off products 11, 12 one from the bottom of the stack, means 13 for forming a shell ply 10 from the products 9 thus removed, and transfer means 14, retractable at least in part, capable of supporting and directing said ply 10 thus trained to workstation 2.
  • FIG. 3 shows the lower part of the stack 7 secured in contact with the laying plane 11 and maintained by the deck 12.
  • Said deck 12 and said laying plane 11 define between them a space 16 such that at least said product 15, moving towards the deck 12, can be taken from the stack from below.
  • said laying plane 11 is constituted by an endless belt conveyor, with continuous motorized movement, the face of which receiving the stack 7 is animated by a movement shown diagrammatically at 17, that is to say - saying tending to move the entire stack towards the deck 12.
  • the product 15 immediately in contact with the belt 11 will be entrained as shown in FIG. 3, then when the product 18 immediately above said product 15 will have a sufficiently large contact surface with the belt 11, this ai will also cause it by causing an overlap between the products 15 and 18.
  • the space 16 must have a height at least sufficient to let two products 15, 18 overlap. It should be noted that this space will advantageously be adjustable according to the products to be treated.
  • these ply forming means are constituted by a conveyor 13, in particular with endless belts, motorized with continuous movement, arranged just downstream of said laying plane 11 of the sampling means, in order to continue the translational movement. 17 of said product 9 taken.
  • the two conveyors 11 and 13 could be different, but in the embodiment shown, the said laying plane 11 of the stack 7 and the said means 13 for forming the sheet of flake are advantageously constituted by the same endless conveyor with continuous movement.
  • the vertical apron 12 will be arranged transversely to said common conveyor 11-13 and will be able to be adjusted according to the width of the format of the products in order to provide on the belts of the conveyor 11 the location corresponding to the dimension of the format as the particularly show the figures.
  • the said transfer means 14 are arranged, at least partly retractable.
  • these transfer means consist of an assembly of conveyors 19-20, in particular of the endless belt type with motorized continuous movement, mounted in articulation 21 at the end of the conveyor 13 for forming the sheet, and subject to a control member 22-24, to authorize the lifting of said assembly 19-20 and allow free access around the workstation 2, as shown particularly in FIG. 4.
  • said transfer means are constituted by an assembly of two conveyors 19-20.
  • this was chosen to facilitate mechanical production, because it could be envisaged to use only one conveyor, liftable according to the same principle.
  • the said assembly of retractable conveyors 19-20 has, in the web transfer position, a movement path substantially in an arc to facilitate handling, as has been pointed out previously.
  • this triangle is formed on the one hand by a part 25 of the conveyor 20, forming the first side of the triangle of fixed dimension, on the other hand by a guide bar 23, forming the second side of the triangle of fixed dimension and finally by a jack 22 forming the third side of the triangle whose dimension is variable.
  • the rod of the actuator 22 is integral and articulated at 26 on the conveyor 20 to be raised.
  • the guide bar 23 is integral and articulated at another point 27 of the conveyor to be raised. The spacing between the joints 26 and 27 then defines the first side 25 of the aforementioned triangle.
  • Maintaining in the raised position of the transfer means is authorized on the one hand by blocking the rod of the jack in the extended position, and on the other hand, on the rack assembly 24 cooperating with a toothed wheel 29, provided at the joint 28 common between the guide bar 23 and the jack 22.
  • a supply conveyor 30, for example substantially constituted by a conveyor belt or endless belt with continuous motorized movement, capable of receiving said sheet 10 in tortoiseshell.
  • this conveyor 30 is mounted on the rear stop 31 of the feeder 32.
  • this conveyor 30 is mounted on the rear stop 31 of the feeder 32.
  • the device of the present invention therefore makes it possible to debit the stacks 5 one after the other, making them travel the minimum distance, and above all without the need to separate them when they are transferred.
  • FIG. 5 shows different variants of the means described above which can be applied to the machine illustrated for example in FIG. 1.
  • this assembly 11-13 may be provided at the level of a carriage 40 which can be moved relative to the ground 41 by means of rollers 42 and rolling rails 43 perpendicular to the direction of movement of the ply.
  • a driven roller 44 may also be provided at the input a driven roller 44 and adjustable in height allowing the rear of the stack to be raised.
  • This roller makes it easier to pick up the sheets one by one from the bottom and also a correct positioning of the stack on the deck 12.
  • flank or the cardboard plate constituting the bottom of the stack it is common for the flank or the cardboard plate constituting the bottom of the stack to be soiled by roller conveyors during transport upstream of this device, for example by conveyors roller 4 of storage area 1.
  • a relative movement of the conveyor 19 relative to the conveyor 13 can be advantageously provided at the level of which the scale sheet is formed.
  • Figure 5 shows a variant of the device 3
  • the conveyors 19, 20 are mounted on a frame 48, in particular movable by means of rollers 49 resting on the ground.
  • the frame 48 comprises a hinge 50 as well as two jack systems 51, 52 allowing the lifting of the conveyors 19 and / or 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP91402202A 1991-08-06 1991-08-06 Verfahren und Vorrichtung zur Zufuhr von flachen Werkstücken aus mindenstens einem Stapel zu einer Maschine Withdrawn EP0526677A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP91402202A EP0526677A1 (de) 1991-08-06 1991-08-06 Verfahren und Vorrichtung zur Zufuhr von flachen Werkstücken aus mindenstens einem Stapel zu einer Maschine
FR9200693A FR2680164A1 (fr) 1991-08-06 1992-01-10 Dispositif d'alimentation d'un poste de travail en produits plats.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91402202A EP0526677A1 (de) 1991-08-06 1991-08-06 Verfahren und Vorrichtung zur Zufuhr von flachen Werkstücken aus mindenstens einem Stapel zu einer Maschine

Publications (1)

Publication Number Publication Date
EP0526677A1 true EP0526677A1 (de) 1993-02-10

Family

ID=8208604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402202A Withdrawn EP0526677A1 (de) 1991-08-06 1991-08-06 Verfahren und Vorrichtung zur Zufuhr von flachen Werkstücken aus mindenstens einem Stapel zu einer Maschine

Country Status (2)

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EP (1) EP0526677A1 (de)
FR (1) FR2680164A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0729888A1 (de) * 1995-03-02 1996-09-04 4P Nicolaus Kempten GmbH Verfahren und Anlage zur automatischen Zuführung von Kartonzuschnitten
EP0805025A2 (de) * 1996-05-03 1997-11-05 Ltg Lufttechnische Gmbh Druckgutfördervorrichtung zwischen Druckwerken
WO2003031299A1 (de) 2001-10-05 2003-04-17 Ferag Ag Verfahren zum verarbeiten von flächigen erzeugnissen und vorrichtung zur durchführung des verfahrens
WO2006136946A1 (en) * 2005-06-14 2006-12-28 Mec Saroglia S.R.L. Apparatus for continuously feeding and unloading sheets into/ from an operating machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1404839A (en) * 1972-08-03 1975-09-03 Simon Ltd Henry Sheet transfer mechanism
FR2348876A1 (fr) * 1976-04-23 1977-11-18 Koppers Co Inc Appareil d'alimentation et de transport de flans en cartons
US4192496A (en) * 1978-03-09 1980-03-11 General Corrugated Machinery Co., Inc. Apparatus for feeding case blank sheets
FR2541254A1 (fr) * 1983-02-18 1984-08-24 Italiana Macch Automat Chargeur a bande pour groupes de feuilles, feuilles, revues et articles similaires pour alimenter des machines confectionneuses, des machines pour la reliure et similaires
US4512562A (en) * 1980-04-09 1985-04-23 Moll Richard J Feeder table with photo-scan controlled belt motor
FR2657855A1 (fr) * 1990-02-07 1991-08-09 Astin France Assistance Tech Procede et dispositif d'alimentation d'un poste de travail en produits plats a partir d'au moins une pile de tels produits.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406963A (en) * 1965-12-03 1968-10-22 Int Paper Box Machine Co Timed bottom feed magazine
US3622149A (en) * 1969-10-08 1971-11-23 Xerox Corp Article destacking apparatus
JPS6048840A (ja) * 1984-07-18 1985-03-16 Hitachi Ltd プリント基板の供給装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1404839A (en) * 1972-08-03 1975-09-03 Simon Ltd Henry Sheet transfer mechanism
FR2348876A1 (fr) * 1976-04-23 1977-11-18 Koppers Co Inc Appareil d'alimentation et de transport de flans en cartons
US4192496A (en) * 1978-03-09 1980-03-11 General Corrugated Machinery Co., Inc. Apparatus for feeding case blank sheets
US4512562A (en) * 1980-04-09 1985-04-23 Moll Richard J Feeder table with photo-scan controlled belt motor
FR2541254A1 (fr) * 1983-02-18 1984-08-24 Italiana Macch Automat Chargeur a bande pour groupes de feuilles, feuilles, revues et articles similaires pour alimenter des machines confectionneuses, des machines pour la reliure et similaires
FR2657855A1 (fr) * 1990-02-07 1991-08-09 Astin France Assistance Tech Procede et dispositif d'alimentation d'un poste de travail en produits plats a partir d'au moins une pile de tels produits.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0729888A1 (de) * 1995-03-02 1996-09-04 4P Nicolaus Kempten GmbH Verfahren und Anlage zur automatischen Zuführung von Kartonzuschnitten
EP0805025A2 (de) * 1996-05-03 1997-11-05 Ltg Lufttechnische Gmbh Druckgutfördervorrichtung zwischen Druckwerken
EP0805025A3 (de) * 1996-05-03 1998-01-07 Ltg Lufttechnische Gmbh Druckgutfördervorrichtung zwischen Druckwerken
US5950540A (en) * 1996-05-03 1999-09-14 Ltg Luftechnische Gesellschaft Mit Beschrankter Haftung Swingable conveyor device for printing units
WO2003031299A1 (de) 2001-10-05 2003-04-17 Ferag Ag Verfahren zum verarbeiten von flächigen erzeugnissen und vorrichtung zur durchführung des verfahrens
US7055816B2 (en) 2001-10-05 2006-06-06 Ferag Ag Method of processing sheet-like products, and apparatus for implementing the method
WO2006136946A1 (en) * 2005-06-14 2006-12-28 Mec Saroglia S.R.L. Apparatus for continuously feeding and unloading sheets into/ from an operating machine

Also Published As

Publication number Publication date
FR2680164A1 (fr) 1993-02-12

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