EP0349436B1 - Dispositif d'alimentation de matériau en feuilles - Google Patents

Dispositif d'alimentation de matériau en feuilles Download PDF

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Publication number
EP0349436B1
EP0349436B1 EP89401872A EP89401872A EP0349436B1 EP 0349436 B1 EP0349436 B1 EP 0349436B1 EP 89401872 A EP89401872 A EP 89401872A EP 89401872 A EP89401872 A EP 89401872A EP 0349436 B1 EP0349436 B1 EP 0349436B1
Authority
EP
European Patent Office
Prior art keywords
sheets
tray
jack
bars
bar
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
EP89401872A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0349436A1 (fr
Inventor
Jean-Claude Glain
César Felix
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.)
CMB Packaging SA
Original Assignee
CMB Packaging 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 CMB Packaging SA filed Critical CMB Packaging SA
Priority to AT89401872T priority Critical patent/ATE79825T1/de
Publication of EP0349436A1 publication Critical patent/EP0349436A1/fr
Application granted granted Critical
Publication of EP0349436B1 publication Critical patent/EP0349436B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
    • B65H1/263—Auxiliary supports for keeping the pile in the separation process during introduction of a new 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
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom

Definitions

  • the invention relates to a device for feeding sheet material, such as for example sheets of cardboard, paper, tinplate, aluminum, etc.
  • the invention applies to a device of this kind designed to distribute such sheets one by one to a processing or processing station.
  • the sheets are stacked on an openwork tray, generally made of wood, commonly called a pallet.
  • the invention relates more particularly to a set of means making it possible to execute automatically or almost automatically all of the operations consisting in evacuating an empty tray and in setting up another tray supporting a new stack of sheets, without interrupting the dispensing of said sheets or significant disruption of the distribution process of said sheets.
  • the tray supporting the stack of sheets is placed on a lifting mechanism which gradually raises the assembly as the sheets are distributed, to compensate for the reduction in height of the stack.
  • the tray When there is only a limited number of sheets left, the tray must be removed and a new stack supported by another tray must be installed.
  • support bars commonly called sabers, are manually slid between the non-contiguous planks of the tray to support the few remaining leaves. These bars are attached to fixed supports or an auxiliary lift to continue the distribution process. After the placement of these bars, the tray is lowered and evacuated. A new stack is then placed on the lifting mechanism which is raised until the top of the stack reaches the level of the bars or sabers, which are then removed.
  • This manual process involves the mobilization of at least one operator for a non-negligible time and requires a certain dexterity on its part because the operation of the support bars can be damaging for the products, the leaves in particular risking being scratched.
  • British Patent No. 2,059,390 describes a machine comprising an elevator mechanism capable of receiving a tray loaded with sheets and a temporary support mechanism for supporting a certain number of sheets during a tray change.
  • This provisional support mechanism comprises bars linked to jacks and these bars are capable of being engaged in interstices of a tray.
  • Document DE 1 095 297 describes a similar system.
  • the invention solves this problem and therefore proposes a feeding device with automatic or quasi-automatic operation, in particular making it possible to change the splateaux with greater ease and without risk of damaging the sheets of material.
  • the invention therefore essentially relates to a device for supplying sheet material, said sheets being stacked on an openwork tray, of the type comprising a lifting mechanism capable of supporting such a tray loaded with sheets and a mechanism provisional support for supporting a number of sheets during a tray change, and wherein said temporary support mechanism includes a plurality of bars having respective free ends and otherwise connected to or forming part of respective cylinders capable of moving them, in their own longitudinal directions under said sheets in interstices of a said plate, characterized in that said cylinders are carried by respective mobile equipment arranged to place the free ends of said bars opposite such respective gaps.
  • each support bar in association with its actuating cylinder, constitutes a feeler moved by the movable equipment along the plate, for an automatic search for a said gap.
  • the sheet feeding device 11 comprises an elevating mechanism of which only a base 12 has been shown, subject to moving vertically (under the action of any suitable mechanical means), a fixed stop 13 and a movable stop 14, both perpendicular to the direction of distribution (indicated by the arrow F) of the sheets 15 and two lateral flanges 17, 18 parallel to said direction of distribution and the positioning of which is adjustable according to the format of the sheets 15 Distribution means, not shown, are arranged at the upper part of the device for picking up the sheets one by one and discharging them in the direction of the arrow F.
  • the base 12 receives a stack of sheets 15; this pile is conventionally placed on a wooden skeleton 21, commonly called a pallet.
  • Such trays often of rudimentary construction, with non-adjoining planks, naturally include interstices 22 which are used to put in place the usual support bars which have been discussed above.
  • the dimensions of the plates are neither precise nor standardized, so that the positions of said interstices inside the square or rectangular frame delimited by the stops 13, 14 and the flanges 17, 18, vary from pile to the other.
  • the tray is sometimes askew (as shown) relative to the stack of sheets proper, which accentuates the problem relative to the locations of the interstices 22.
  • the feeder 11 is further equipped with a temporary support mechanism 25 to support a number of sheets during a tray change.
  • this mechanism comprises a plurality of bars 26 (four in the example shown) linked to or forming part of pneumatic cylinders 27.
  • the assembly is such that each bar can move in its own longitudinal direction, under the remaining sheets, by engaging in the aforementioned interstices 22.
  • the jacks 27 are carried by respective moving parts 29, arranged to place the bars opposite such interstices 22.
  • each jack 27 is arranged parallel to the corresponding bar 26, perpendicular to the direction of distribution F, to reduce the size of the device, on the sides.
  • One end of the bar is coupled to the rod 27a of the cylinder.
  • the free end 30 of the bar 26 acts as a probe capable of coming into contact with one side of a plate 21 during a movement of the corresponding moving element 29. To this end, this end 30 can be rounded, as shown, or provided with a roller.
  • each bar 26 is provided with a plurality of rollers 31 arranged to come into contact with the sheets and thus avoid scratches. As can be seen in FIG. 2, the rollers 31 are mounted along the bar 26, projecting alternately upwards and downwards.
  • Each mobile assembly, on which a cylinder 27 is mounted is essentially constituted by a pneumatic cylinder 35 fixed by means of a support 36 to one of the two flanges 17, 18.
  • each bar 26 can therefore move along a certain stroke while remaining in contact with the edge of a plate 21 (when the latter has reached the level of the bars 26) and means for supplying actuating fluid are arranged to apply at the jack 27 a low pressure during the displacement of the moving element, that is to say during part of the stroke of the corresponding jack 35 and a high pressure at the end of a probing phase.
  • actuating fluid supply means are illustrated in FIG. 3.
  • the end of a probing phase is determined by detection means 38 sensitive to the stroke of the jack 27.
  • the jack 27 is supplied by one or the other of two compressed air sources, a low pressure source BP and a high pressure source HP, via a three-way solenoid valve 40 controlled by a control unit 41 of the electromechanical type or other whose design is within the reach of the skilled person.
  • the detection means 38 comprise, for example, a cam 42 whose position is representative of the longitudinal displacement of the bar 26, and a sensor 45, for example a simple electromechanical contactor, placed to be actuated by the cam and electrically connected to control the control unit 41.
  • the output of the latter is also connected to the control input of a solenoid valve 46 controlling the isolation of the jack 35 from its control pressure and its simultaneous venting.
  • the detection means 38 are combined with fluid switching means (40, 41) connected to supply the actuator 27 at a low pressure or at a high pressure.
  • the pressure switching takes place as soon as the bar 26 has engaged, during probing, by a predetermined distance in a gap of a plate.
  • the moving element is controlled by or operates in synchronism with the fluidic switching means, so as to stop the actuator 35 from displacement of the assembly constituted by the jack 27 and the bar 26 substantially simultaneously with the admission of the high pressure into the jack 27.
  • the jacks 35 define the starting positions for the bars 26, these positions being the closest to the fixed and mobile stops 13, 14.
  • the starting position is fixed for the mobile equipment located in the side of the fixed stop 13 and "floating" depending on the format of the sheets, for the mobile equipment located on the side of the mobile stop 14.
  • each actuator 35 located on the side of the mobile stop has two opposite rods, l 'one supporting the cylinder 27 and the other forming a reference probe 48 coming into contact with the movable stop 14.
  • the assembly is completed by four retractable fingers 49 which deploy in the vicinity of the edges of the sheets. Two opposite fingers are provided, arranged in the direction of the distribution axis and two others in a perpendicular direction, between the bars 26.
  • the operation is as follows.
  • the latter is then discharged and replaced by a new battery, supported by another tray.
  • the base is raised until the top of the stack is again at the level of the support bars 26.
  • the bars are then removed by actuating the jacks 27 so that the last sheets of the previous stack come to rest on the new stack. The distribution process is thus practically undisturbed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Passenger Equipment (AREA)
  • Advancing Webs (AREA)
EP89401872A 1988-06-29 1989-06-29 Dispositif d'alimentation de matériau en feuilles Expired - Lifetime EP0349436B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89401872T ATE79825T1 (de) 1988-06-29 1989-06-29 Vorrichtung zum zufuehren von bogenfoermigem material.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8808750A FR2633598B1 (fr) 1988-06-29 1988-06-29 Dispositif d'alimentation de materiau en feuilles
FR8808750 1988-06-29

Publications (2)

Publication Number Publication Date
EP0349436A1 EP0349436A1 (fr) 1990-01-03
EP0349436B1 true EP0349436B1 (fr) 1992-08-26

Family

ID=9367858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401872A Expired - Lifetime EP0349436B1 (fr) 1988-06-29 1989-06-29 Dispositif d'alimentation de matériau en feuilles

Country Status (7)

Country Link
EP (1) EP0349436B1 (pt)
AT (1) ATE79825T1 (pt)
DE (1) DE68902606T2 (pt)
ES (1) ES2034694T3 (pt)
FR (1) FR2633598B1 (pt)
GR (1) GR3006196T3 (pt)
PT (1) PT91007B (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7354039B2 (en) 2003-06-30 2008-04-08 Heidelberger Druckmaschinen Ag Apparatus for picking up an auxiliary pile during renewal of a main pile when feeding sheets to a printing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735894C2 (de) * 1997-08-19 2000-11-30 Roland Man Druckmasch Verfahren und Vorrichtung zur Ausrichtung der Tragstäbe des Hilfsstapelträgers eines Non-Stop-Anlegers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095297B (de) * 1958-03-25 1960-12-22 Mabeg Maschb G M B H Nachf Hen Bogenanleger mit mehreren Stapelhubwerken
FR1415298A (fr) * 1964-03-06 1965-10-22 Schnellpressenfab Heidelberg Table à pile de papier pour appareil margeur à fonctionnement continu
FR2354272A1 (fr) * 1976-06-09 1978-01-06 Jurine Dispositif pour l'amenee en continu d'articles empilables a une machine d'utilisation
CH639909A5 (de) * 1979-10-02 1983-12-15 Sig Schweiz Industrieges Vorrichtung zum entstapeln von flachen einheiten von verpackungsmaterial.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7354039B2 (en) 2003-06-30 2008-04-08 Heidelberger Druckmaschinen Ag Apparatus for picking up an auxiliary pile during renewal of a main pile when feeding sheets to a printing machine

Also Published As

Publication number Publication date
GR3006196T3 (pt) 1993-06-21
PT91007B (pt) 1994-06-30
PT91007A (pt) 1989-12-29
DE68902606T2 (de) 1993-04-08
ATE79825T1 (de) 1992-09-15
EP0349436A1 (fr) 1990-01-03
FR2633598B1 (fr) 1991-04-05
FR2633598A1 (fr) 1990-01-05
ES2034694T3 (es) 1993-04-01
DE68902606D1 (de) 1992-10-01

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