EP0039526B1 - Dispositif de transport pour le transfert des feuilles fraîchement imprimées - Google Patents

Dispositif de transport pour le transfert des feuilles fraîchement imprimées Download PDF

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Publication number
EP0039526B1
EP0039526B1 EP81200420A EP81200420A EP0039526B1 EP 0039526 B1 EP0039526 B1 EP 0039526B1 EP 81200420 A EP81200420 A EP 81200420A EP 81200420 A EP81200420 A EP 81200420A EP 0039526 B1 EP0039526 B1 EP 0039526B1
Authority
EP
European Patent Office
Prior art keywords
sheet
grippers
chain gripper
gripper system
fact
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
Application number
EP81200420A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0039526A1 (fr
Inventor
Antonio Bonomi
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.)
KBA Notasys SA
Original Assignee
De la Rue Giori 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 De la Rue Giori SA filed Critical De la Rue Giori SA
Priority to AT81200420T priority Critical patent/ATE10173T1/de
Publication of EP0039526A1 publication Critical patent/EP0039526A1/fr
Application granted granted Critical
Publication of EP0039526B1 publication Critical patent/EP0039526B1/fr
Expired 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/0443—Drying sheets, e.g. between two printing stations after printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/042—Intermediate conveyors, e.g. transferring devices

Definitions

  • the invention relates to a transport device for transferring freshly printed sheets from a printing machine to an output stack or to another printing machine, comprising two systems of chain clamps which move continuously and whose clamps are adapted to hold the front and rear edges of the sheets, these systems comprising a determined rectilinear path area.
  • French device no. 1,530,544 is known of a device of this type in which two chain conveyors are provided, the first of which carries gripping members fixed to a shaft and gripping the anterior end of the sheets and the second of which carries grippers attached to another tree and gripping the posterior end of the leaves.
  • the sheet captured at its anterior and posterior ends is transported through a heating device, then through a cooling device.
  • this drying device with its two chain conveyors forms a unit independent of the system for transporting the sheets coming from the printing machine, this unit being arranged perpendicular to this transport system. Consequently, in addition to the fact that two chain conveyors must be provided which are independent of the sheet transport system proper, it is also necessary to provide devices for transferring the sheets between the transport systems.
  • the present invention proposes to provide a device with which the sheets can be kept in a well-defined position, for a determined path, which is particularly applicable to the intensive drying of the sheets when it is desired to guarantee an absolutely constant distance from the sheet to the heat source for the duration of the passage and further eliminating the problem of cooling.
  • the device according to the invention is characterized in that the pliers of the second chain pliers system are arranged so as to stretch the sheet with a small backward movement relative to the pliers of the first chain pliers system and to keep this sheet taut during its passage in this zone and that the whole series of pliers of a group of pliers assigned to a sheet is carried by a support mounted on the chains of the second system of chain pliers so that it can be moved relative to these chains in the longitudinal direction, and is movable by a control device between a first position which corresponds to the position in which a sheet is stretched and a second position which corresponds to the position in which the sheet is relaxed.
  • a device is easy to construct since it is made up of the same elements as the first chain pliers system, this device allowing on the one hand regular drying, and on the other hand, for the first time, to release the drying region subjected to the heat source, from any stationary support or guide member, respectively, of the sheets, only the clamps fixed to the chains passing through this region.
  • this principle of keeping the sheets stretched by a second system of clamps which grips the posterior edge of the sheet is not limited to drying freshly printed sheets, but has other possible applications, for example to turn the sheets.
  • it is the clamps of the first system which open to release the front edge of the sheet and by an adequate curvature of the second system and a tilting of the clamps of the second system, the rear edge of the sheet becomes the front edge .
  • the sheet transport device as shown, diagrammatically in FIGS. 1 and 2 and intended for drying the freshly printed sheets, comprises a first system 1 of chain clamps constituted by two parallel chains 2, 2 ′ guided by guide rails 3 and driven by chain wheels 5 at least one of which is driven by the installation motor, not shown in the figures. Moreover, in Figure 1, the installation is only partially shown in the region of the drying device, but this first system 1 of chain pliers forms a closed loop and is of a construction well known per se. This first system 1 drives clamps 4 arranged in series on a shaft and intended to grip the front edge of the sheet F to be transported.
  • This system 1 transports, in the direction of the arrows, the freshly printed sheets F arriving from an intaglio printing machine, in front of the drying device 7, then either to a battery outlet or to another device for print to apply a second print on the same side.
  • the freshly printed face of the sheet is oriented towards the inside of the loop of the first system 1 of chain pliers.
  • the sheets are further supported or guided by parallel rods 6, which however are interrupted in the area of the drying device 7.
  • This drying device 7 is provided on the portion of the rectilinear and inclined path, as shown in Figure 1, and includes for example one or more series of ultraviolet lamps.
  • the heat source could be different, for example gas burners, infrared lamps, or any other suitable means.
  • a second system 11 of chain clamps is provided below the rectilinear and inclined portion of the first system 1, this second system also comprising two parallel chains 12, 12 'provided on their outside, as known, with pins 16, 16' guided by guide rails 13, these chains are driven by chain wheels 15 in synchronism and at the same speed as the first system 1 and, on shafts connected to these chains, series of clamps 14 are mounted.
  • the second system 11 of chain pliers is arranged so that the active part of these pliers 14 is practically in the same transport plane as the active part of the pliers 4 of the first system 1 chain pliers, as illustrated in FIG. 2 in which a sheet F is seen in section. Furthermore, in this region, as already indicated above, there are no support rods 6 so that the system is released any stationary support element that supports the sheets. The sheets are therefore simply suspended between the clamps 4 of the first system which grip their front edge and the clamps 14 of the second system which grip their rear edge, as will be explained below.
  • the clamps 14 of the second system are in fact intended to grip the rear edge of the sheet F, just before it arrives in the drying zone, and immediately after gripping it, to move back slightly with respect to the chains 12, 12 ', therefore compared to the clamps 4 of the first system 1 which grip the front edge of the sheet.
  • the sheet F is stretched between the clamps 4 and 14 throughout its journey in the drying zone, respectively in front of the heat source 7; then, once the sheet F has passed through the drying zone, the clamps 14 release its rear edge and it continues its path being gripped by its front edge between the clamps 4.
  • the second system is constructed in the following manner (fig. 3, 4 and 5).
  • the frame 20 is completed by two crosspieces 26, 27 which interconnect the two side parts 23.
  • These two side parts 23 are of course symmetrical, and are provided with two projections 24, 25 which serve as a guide for a support 40 on which the clamps 14 are mounted, this support being mounted so that it can be moved longitudinally relative to the frame 20 and consequently to the chains 12, 12 '.
  • This support 40 form symmetrical slides 41 which are provided, as illustrated in FIG. 4, with two projections 42, 43, cooperating with the projections 24, 25 of the side part 23, the projection 43 being disposed between the two projections 24, 25 while the projection 42 remains outside.
  • On these projections 42, 43 is fixed a guide rod 49 which passes through two corresponding holes formed in the projections 24, 25.
  • the support 40 is pressed by a tension spring 44 in the position illustrated in FIG. 4 in solid lines, namely towards the rear relative to the direction of transport.
  • each of the two slides 41 on the two sides of the support 40 forms a projection 54 which each cooperates with a push finger 32 mounted on a shaft 29 which is supported in bearings 28 formed on the lateral parts 23 of the frame 20.
  • This shaft 29 is integral on one side, that located on the left side of the system considering Figures 2 and 3, a control lever 30 provided at its end with a pressure roller 31 intended to cooperate with a cam which will be described later.
  • Each push finger 32 is further provided with an arm 33 on which is fixed one end of a return spring 34 whose other end is fixed to a raised part 35 of each side part 23 of the frame 20.
  • the spring 34 pulls finger 32 in the rest position against a bolt 36 fixed on the lateral part 23.
  • a bearing receiving a transverse shaft 45 on which are fixed, in a known manner, a series of clamps 14 provided with a finger 14a, this shaft 45 being further provided on one side, as illustrated FIG. 5, of a control lever 50 integral with a pressure roller 51 serving to open the clamps 14 by the rotation of the shaft 45 against the force of a return spring 52 fixed elsewhere on the support 40.
  • the support 40 carries between its two side walls 41 a transverse bar 48 on which are fixed a series of studs 47, on the upper part of which is fixed the end of a leaf spring 53.
  • the other end of the blade 53 is provided with a stop 46 which constitutes the fixed part of the clamp and against which is pressed, in the closed position of the clamp, the finger 14a by the action of the spring 52.
  • the roller 31 is provided on one side of the frame, while the other roller 51 which actuates the opening of the clamps 14 is disposed on the other side of the frame, respectively support.
  • These two rollers 31, 51 cooperate with cams 60, respectively 61 fixed stationary in the frame of the transport device in such a way that, in a known manner, when the rollers driven by the chain pass over them, they are actuated.
  • the sheet arrives on the first system 1 with its anterior edge retained by the clamps 4 and slides on the support rods 6.
  • the mechanism for actuating the clamps 14 begins to operate as follows: first of all, it is the cam 61 which touches the roller 51 and which therefore causes the clamps 14 to tilt around the 'shaft 45 which has the effect of opening these clamps against the spring 52; immediately afterwards, it is the other cam 60 which touches the roller 31 which, as described, moves the support 40 forwards by this movement, the rear edge of the sheet is engaged between the clamps 14 open and the stops 46 then, thanks to the profile of the cam 61, the clamps close by gripping said rear edge of the sheet and, also thanks to an appropriate profile of the cam 61 and the roller 31 is released and the support 40 returns to its position rest in which the sheet is stretched between the clamps 4 and 14.
  • the leaf springs 53 on which the stops 46 are fixed guarantee sufficient flexibility when gripping the sheet and avoid possible damage to its rear edge.
  • the distance between the series of pliers 14 of the second system and the corresponding series of pliers 4 of the first system is adapted to the length of the sheets in the direction of transport and is such that in the rest position of the support 40 the sheet F is stretched while in the advanced position of the support, said sheet is relaxed.
  • the first system 1 is again provided with support rods 6 which support the sheet F once the posterior edge of the latter has exceeded the drying zone and a cam, not illustrated in the figures , allowed the opening of the clamps 14 to release this edge.
  • hollow support rods 9 provided with orifices are provided 8 (fig. 1) which are connected to a suction system and the posterior edge of the sheet is therefore pressed when it is gripped by the clips 14.
  • Other means could be provided to ensure this plating.
  • This mechanism is illustrated diagrammatically in FIG. 1 and comprises a bent arm 65 fixed by a stud 66 to a shaft 67 which can rotate.
  • This shaft 67 is itself fixed to a system of links 68, 69, 70, the last link being provided with a roller 71 provided for engaging a cam 72 driven in rotation in synchronism with the chain wheel 15 via a belt 73.
  • the profile of the cam 72 is provided so that when the rear end of a sheet F has just been released by the clamps 14, the rod system moves and takes the position illustrated in Figure 1, in which the bent arm 65 enters the path of the leaf and abruptly raises its posterior end, then it immediately returns to the normal position in which it extends below this path, parallel to it.
  • This device comprises a first chain wheel 75, connected by a chain 84, permanently, to the first system of chain pliers 1, and formed by a crown fixed by six bolts 76 on the hub projecting from a second wheel 77 secured to a shaft 78 belonging to the second system 11 of chain pliers and on which is fixed another chain wheel 80 on which the chain of said second system is guided.
  • the wheels 75, 77 are therefore mounted coaxially on one another and can be turned relative to one another after having unscrewed the screws 76 which connect them.
  • a pinion 81 normally subjected to the action of a return spring 83 which retains it in a non-driving position, as shown in dashed lines on the FIG. 8, which can be pushed, against the force of the spring 83, into a driving position, as shown in solid lines in FIG. 8, in which it meshes with a toothing 79 formed on the wheel 77.
  • the invention has been described in relation to its application to a device for transporting the sheets in a drying zone, but it is naturally not limited to this application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Advancing Webs (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP81200420A 1980-05-05 1981-04-13 Dispositif de transport pour le transfert des feuilles fraîchement imprimées Expired EP0039526B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81200420T ATE10173T1 (de) 1980-05-05 1981-04-13 Transportvorrichtung zur ueberfuehrung von frisch bedruckten bogen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH347280A CH635298A5 (fr) 1980-05-05 1980-05-05 Dispositif de transport pour le transfert des feuilles fraichement imprimees.
CH3472/80 1980-05-05

Publications (2)

Publication Number Publication Date
EP0039526A1 EP0039526A1 (fr) 1981-11-11
EP0039526B1 true EP0039526B1 (fr) 1984-11-07

Family

ID=4256700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200420A Expired EP0039526B1 (fr) 1980-05-05 1981-04-13 Dispositif de transport pour le transfert des feuilles fraîchement imprimées

Country Status (10)

Country Link
US (1) US4409741A (ja)
EP (1) EP0039526B1 (ja)
JP (1) JPS574854A (ja)
AT (1) ATE10173T1 (ja)
AU (1) AU536222B2 (ja)
CA (1) CA1177099A (ja)
CH (1) CH635298A5 (ja)
DD (1) DD158883A5 (ja)
DE (1) DE3167034D1 (ja)
SU (1) SU1192607A3 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104507694A (zh) * 2012-04-17 2015-04-08 法国Mgi公司 用于在印刷机中运送基底的装置和方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3429008C2 (de) * 1984-08-07 1986-07-10 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Transportieren von Bogen hinter einer Auslegetrommel
DE3502663C1 (de) * 1985-01-26 1986-06-05 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Kettenfoerderer fuer den Ausleger von Druckmaschinen
JPS63141743A (ja) * 1986-12-04 1988-06-14 Komori Printing Mach Co Ltd 枚葉印刷機の間紙挿入排紙装置
FR2675488B1 (fr) * 1991-04-18 1993-07-16 Komori Chambon Appareil de separation d'articles minces et plats, tel que des flans de carton, deplaces les uns a la suite des autres, en une file continue, sur au moins un transporteur.
DE4218421A1 (de) * 1992-06-04 1993-12-09 Heidelberger Druckmasch Ag Bogenführung im Ausleger einer Druckmaschine
DE4239561C2 (de) * 1992-11-25 2000-10-19 Heidelberger Druckmasch Ag Kettenförderer einer Bogendruckmaschine
DE4442983B4 (de) * 1994-12-02 2006-03-02 Heidelberger Druckmaschinen Ag Druckmaschine mit Trocknungsvorrichtung
US5540152A (en) * 1995-04-10 1996-07-30 Demoore; Howard W. Delivery conveyor with control window ventilation and extraction system
DE19523881C2 (de) * 1995-06-30 1999-12-02 Heidelberger Druckmasch Ag Rotationsdruckmaschine mit nachgeschalteter Weiterverarbeitungseinheit
US6782822B2 (en) * 2000-02-23 2004-08-31 Agfa-Gevaert Compact printing apparatus and method
DE60038510D1 (de) * 2000-02-23 2008-05-15 Agfa Graphics Nv Kompakter Drucker und Verfahren
KR100829528B1 (ko) 2000-10-20 2008-05-16 케이비에이-지오리 에스.에이. 개개의 인쇄물이 인쇄된 시트의 더미를 제조하는 방법
DE10154416B4 (de) * 2001-11-06 2009-09-03 Koenig & Bauer Aktiengesellschaft Einrichtung zum Behandeln beidseitig bedruckter und/oder lackierter Bogen
CN100519186C (zh) * 2004-07-27 2009-07-29 海德堡印刷机械股份公司 用于加工由承印物制成的页张的机器
CN108639692B (zh) * 2018-06-29 2024-03-01 中国重型机械研究院股份公司 一种拉伸机侧上料装置及方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104507694A (zh) * 2012-04-17 2015-04-08 法国Mgi公司 用于在印刷机中运送基底的装置和方法

Also Published As

Publication number Publication date
AU7007181A (en) 1981-11-12
DE3167034D1 (en) 1984-12-13
US4409741A (en) 1983-10-18
AU536222B2 (en) 1984-04-19
ATE10173T1 (de) 1984-11-15
CA1177099A (en) 1984-10-30
CH635298A5 (fr) 1983-03-31
JPS574854A (en) 1982-01-11
EP0039526A1 (fr) 1981-11-11
JPH0240572B2 (ja) 1990-09-12
SU1192607A3 (ru) 1985-11-15
DD158883A5 (de) 1983-02-09

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