FR2626813A1 - PRINTING MACHINE WITH TRANSPORTATION OF TESTS WITH COMPLETE TRANSFER OF TESTS - Google Patents

Abstract

Printing machine characterized in that the printing paper transport system is produced in the form of a cylinder system 4 cooperating with the discharge of the printing paper and with the supply of printing paper. An opposing cylinder 12 is associated with each printing form cylinder 9. A lacquer delivery device 36 cooperating with an opposing cylinder 15 is disposed with a first dryer 37 in front of the first printing unit. The prints of different colors are successively applied to the endless blanket 7 over the layer of dried lacquer. The complete transfer of the lacquered image onto the sheet takes place at the level of the cylinder 4 after passing through a second dryer 38.

Description

SPO "ttd26281": printer with transpoxt-proofs with transert

complete tests ".

  The invention relates to a printer with

transport of proofs.

  There is known a sheet irimer (DE 32 03 948) in which the rubber cylinders of the

  different printing groups touching each other to

  the transfer of the ink are arranged in a row and a cylinder which simultaneously constitutes the inlet drum and the return system of the circuit

  transfer chain, is likely to be

  that against a rubber cylinder.

  The disadvantage in this case is that lice

  transfer of printed proofs, many solutions.

  continuity of inking is necessary, which causes a magnification of the points,

  of maceration and therefore a loss of quality. 'In this-

  Moreover, because of the greater than average number of continuity solutions, a regulation of the thickness of the ink layer corresponding to

  jet of different length from the ink to the trans-

  this ink on the dl-impression paper, is

  problematic. This machine design, because of

  disadvantages mentioned above, is not applicable to

  modern machines with a large number of

  impression, for example to a machine with ten

their.

  Another disadvantage is that with this

  machine reception, front and back printing is not possible. The object of the invention is to increase the quality of the printing, to simplify the transport of the sheets and thus to obtain an increase in the printing capacity as well as an extension of the implementation of a printer according to the principle of

transport of proofs.

  The problem with the invention is to create a printer according to the principle of transporting

  events with a complete transfer of the tests.

  According to the invention, this problem is solved in the case of a printer with transport

  proof papers with a paper feed of

  pressure. a printing paper transport system

  printing paper, including

  at least one impression-form cylinder with an inking device and a wetting device and at least one printed-proof transfer element in contact with the conveyor system;

  printing paper and printing form cylinder

  in that the printing paper transport system is embodied in the form of a printing system.

  cylinders cooperating with the evacuation of paper from

  pressure and with the supply of printing paper

  an opposing cylinder being associated with each impression-form cylinder, a lacquer-supplying device cooperating with a counter-roller being arranged with a first dryer in front of the first printing unit, the proof-collecting element printed matter in the form of a strip-form printed proof collector

26Z6813

  end in contact with the system of cylinders, and not-

  passing through the printing zone between at least one impression-form cylinder and at least one counter-roll, and through the area between the lacquer-supplying device and the counter-roll, thus

  only through the area of action of the first dryer,

  say that following the last impression group is

  a second dryer acting on the collector

printed proof reader.-

  The cylinder system takes the form of a run.

  central cylinder for printing and transporting sheets with at least one gripping system or it consists of a central printing cylinder and

  transport of leaves with at least one

  and with at least one drum system constituting

  part of a printing device on the back

  placed after the central printing cylinder and

  leaf transport and comprising at least one cylinder

  print on the back. Or the system of cy-

  lindre takes the form of a first central cylinder

  print and tape transport, or this system.

  The cylinder head is made up of a first central tape printing and transporting cylinder and at least one drum system constituting a part of a printing device on the back side arranged after the central cylinder. printing and transporting tape and comprising at least a second cylinder

  back printing and tape transport.

  The drum system consists of at least one impression cylinder on the back of sheets-with at least one gripping system or it consists of a back-side printing cylinder with at least one gripping system and a transfer cylinder with at least one gripping system, or two cylinders of. transfer taking the form of. reversing cylinders of sheets or cylinders

  of transport, or it consists of four cy-

  transfer lindres with the choice of a cy-

  sheet reversing film or transport rolls The back printing device is coated with

  the form of a printing device consisting of a.

  cylinder of printing form with device for

  cage and wetting device and an off-cylinder

  set being in contact with the shape cylinder

  printing and the drum system, or else

  positive impression on the back is in the form of a

  to be a collector of printed proofs

  in print contact with the tamper system.

  bour, with at least one printing forme cylinder with inking device and wetting device and a counter cylinder. At least one cylinder of

  form of printing with an inking device and

  The anchor is placed above the upper strand.

  of the printed-proof collector or at least one impression-form cylinder with an inking device and a wetting device

  disposed below the lower strand of the col-

  printed proof reader, or at least one print-form cylinder with a device

  inking unit and wetting device is disposed

  above the upper strand of the collector element of

  printed proofs and at least one impression-form cylinder with an inking device and a wetting device is arranged below the lower strand

  of the printed proof collector.

  The proof-proofing element is in the form of a printing blanket

  endless offset, or at least one piece of blank

  Offset printing is connected to the col-

  printed proof reader, or even more, the student

  collection of printed proofs shall include at least

  a catching system for a stretch of

  offset pressure. The lacquer supply device is

  consisting of a lacquer tray, a cylinder of applica-

  a lacquer drawing cylinder and a lacquer dosing cylinder. The first dryer is an initial dryer. The second dryer is a

energy dryer.

  The invention will be explained in greater detail hereinafter with reference to an exemplary embodiment shown in the accompanying drawings in which

  - Figure 1 shows a printing machine with

  those with test transport having upper strand printing units; - Figure 2 shows a sheet imprinter with test transport comprising

  lower strand printing groups, -.

  - the figure. Fig. 3 shows: a proof-of-paper printing machine with upper strand and strand printing units. Fig. 4 shows a sheet printer with proof transport with double strand printing units,

  - Figure 5 shows a printer & rou-

  with proof transport (simplified printing group) t

  - Figure 6 shows a sheet printer

  with proof transport for choice on the front and front and back (printing unit); - Figure 7 shows a sheet printer with proof transport for printing at

  Choice on the front and front and back (collecti-

  printed proof reader), - figure 8 shows a printer.

  sheets with proof transport for printing at.

  choice on the front and back and front (group of

pressure and transfer cylinder),

  - Figure 9 shows a sheet printer

  with proof transport for choice on the front and back and front (Planeta sheet transfer system); - Figure 10 shows a sheet printer with proof transport for an optional print on the front and front and back (Miller Sheet Transfer System),

  - Figure 11 shows a printing machine with

  with proof transport for printing at

  recto and print on the front and back.

  The printer according to the invention in its

  embodiment as a sheet printing machine

  is constituted by a transport system of

  leaves and by a system of proof transport

  winning. The leaf transport system is

  constituted (FIGS. 1 to 4) by a feed in

  printing pier with a feeder 1, a feeding table

  tion 2, and a transfer of sheets 3, for example

  a pre-gripping device, by a printing paper transport system in the form of a cylinder system 4 disposed following the transfer of sheets, and by an evacuation of printing paper in the form of 'a device

  sheet transfer 5. The cylinder system 4 cot-

  takes a central printing and transport cylinder

  of sheets in one embodiment as a cylinder.

  central printing 4.1. The central cylinder of

  4.1 leaf pressure and transport

  systems 6, the number of these systems of

  - being able to be increased or reduced.

  In the realization, as printer at the

  recto and as a printer on the front and back (not

  leaf pressure) the 4-bar

  takes a central printing and transport cylinder

  of sheets 4.1 and a drum system 27 inserted into

  It is the central displacement and sheet conveying capacity 4.1 and the sheet transfer device 5. The drum system 27 is part of a printing device on the back 28.

  drum 27 comprises a sheet printing cylinder

  on verso 29.1 (figure 6) or a cylinder of im-

  sheet pressure 29.1 and a transfert cylinder

  (Figures 7 and 8) or two cylinders

  to be used as

  version of sheets or transport cylinders (Planeta system after DD 54 703, figure 9) or four cylinders may be operated at

  choice as leaf reverser cylinders or cy-

  transport lugs, (Miller system according to DE 1 1077

245, FIG. 10).

  : When printing on the back and on the front

  according to the Planeta system, the first cylinder of inversion

  sheet production functions as cylinder 31

  of inversion of leaves, and the second cylinder of

  version of 'leaves works as a printing cylinder on the back of sheets 29.1. The inversion of sheets then takes place, in known manner, either between the central printing and sheet conveying cylinder 4.1 and the sheet inversion cylinder 31 or between the sheet inversion cylinder 31

  and the sheet printing cylinder on reverse 29.1.

  When printing on the front side, there is no inversion of sheets and the cylinder system 27 consists solely of rolls - of

  32. The two rolls of sheet inversion

  the 29.1, 31 are, after changing the system of

  known, which can be used as cylinders

transport goods 32.

  When printing front and back according to the Miller system, the first, the second and the third rolls reversing sheets 31; 33; 34 function as sheet inversion cylinders and the fourth leaf reversing cylinder operates

  as a sheet printing cylinder on reverse 29.1.

  The inversion of sheets takes place between the second and the third reversal rolls. When printing on the front, there is no inversion of sheets, and the cylinder system 27 is only

  consisting of transport cylinder 32.

  The four rolls of sheet inversion are, after system change likely to be

  used as transport cylinders 32.

  The central printing and sheet conveying cylinder on the backside 29. 1, the transfer cylinder 30, the sheet reversing rolls 31, 33, 34 and the transport roll 32 have two gripping systems 6, or the number of systems

take can increase or decrease.

  The printer according to the invention in its

  roller printing machine ception includes a

  tape transport system and a tran-

sport of printed proofs.

  The web transport system (Fig. 5) consists of a print paper supply with a paper unwinder 22 and a web guide roll 23, into a cylinder system 4 in the form of a central printing cylinder and band transportation

  4.2, and an evacuation of printing paper

  staged by a retractor 24 with guide rollers

Band age 25.

  In the production as a printing machine on the front and back, (tape printing), the cylinder system 4 comprises a central printing and conveying belt cylinder 4.2 and a printing cylinder. on the back and Z9.2 tape conveyor arranged following the central printing and conveying tape cylinder 4.2. The printed proof transport system is constituted by a hard copy collector 7 which is in the form of an endless belt guided by means of two deflection rolls 8, and which is in the form of an endless belt. contact with the cylinder system 4, that is to say with the central cylinder for printing and transporting sheets or for transporting tape 4.1 or else

  4.2. In addition, the system of transporting

  awarded at least one group-of

  if we. This printing unit consists of a printing forme cylinder 9 with inking device 10

  and wetting device 11 as well as with a cylinder

Antagonist 12.

   . Finally, the printed proof transport system is constituted by a lacquer supply device 36 cooperating with a cylinder-antagonist 15 and arranged in front of the first printing unit with a first dryer 37, as well as with a second dryer

  38 disposed after the last printing group.

  The lacquer supplying device 36 consists of a lacquer tray 39, an application cylinder 40, a lacquer dosage cylinder 41 and a cylinder of

drawing the plate 42 ... : ..

iThe lacquer used guarantees that: -

  - it adheres to the test collector element

  awarded 7 after drying with the first dryer 37,

  - the printing color applied by the groups -

  print may slightly penetrate and in the next printing group no back slits and no smearing occur, - the lacquer layer with the printed proof may be

  detached from the proof-reading element

  7 by the action of the second dryer 38 and can then be applied by the contact between the printed proof collecting element 7 and the cylinder system 4 on the printing sheet or on

the tape to be printed.

  The return roller 8 fills, according to the

  FIG. 1 shows the counter cylinder function 15. The first dryer 37 is preferably designed as an initial dryer, for example, an ultraviolet dryer. The second dryer 38 is in the form of a

  energy dryer for example, from a dryer to infra-

  red. The upper strand 13 of the proof-proofing element 7 travels through the contact zone

  between the application roll 40 of the appli-

  lacquer port 36 and the counter cylinder 15, the

  zone of action of the first dryer 37, the zone. of con-

  tact between. the impression-form cylinder 9 and the counter-roll 12, and the lower run 14 of the proof-proofing element 7 runs through

  the zone of action of the second dryer 38 (Figures 1; 4).

  -On the proofreader element

  At least one washing device 16 and one bubble sensor 17 are used. The printed proof collecting element 7 takes the form of an endless offset printing blanket 18 (FIG. 3) or, with the at least one offset printing blanket member 19, in which case, when a plurality of offset printing blanket parts are connected to the printed proofing member, an intermediate space is planned for the

11 -:

  gripping system 6 (figure} 1). The printed proof collector 7 may also consist of at least one section of offset printing blanket.

  21 carries on a system of 20

  or anterior and posterior edges and / u

lateral edges.

  In the figure. 2 is an embodiment in which the printing units consisting of the printing-forme cylinder 9 with inking device and wetting device 10 1, and the counter-roller 12 are in contact with the lower strand 14 of FIG. the collector element

printed 7.

  FIG. 3 shows an embodiment in which a first quantity of.

  printing units is in contact with the upper strand -

  of the printed collectors 7, while a second quantity of printing groups: is in contact with the lower strand of the emulsion.

  printed proof collector 7.

  In Figure 4 is shown another: Efor-

  realization in which another element

  printed proof reader 7 'with the printing groups

  corresponding pressure is associated with the central cylinder

  tral printing and transport of sheets 4.1 ..

  In FIG. 5 is shown a form of

  realization in which a collector element of

  printed evidence 7 is associated with the central cylinder

  printing and transporting tape 4, .2 Un.disposi-

  On the reverse 28, the backside 28 is associated with the printing cylinder on the backside 29. This printing device

  on verso 28 is constituted by an impres-

  28.1 or by another collecting element of

  printed evidence 28.2. The printing device

  28.1 consists of an offset cylinder 26 and a cy--

  printing form 9 with

wetting and inking 10; 11.

  The other element of print proofing

  28.2 is formed in a manner similar to that of the hard copy collector 7. The operating mode of the printer

  sheets according to the invention. will be described below

  after. The sheet taken by the feeder 1 is fed to the central printing and transport cylinder

  sheets 4.1 through the food table

  tion 2 and the transfer of leaves 3. The element

  printed proof reader 7 travels through the area of

  pressure between the application roll 40 and the cy-

  15, that is to say that on the printed proof collector element 7, a layer of lacquer

  is applied. The proofreading element

  then moves through the area of action of the first

  37, where the lacquer layer is dried. Next, the printed proof collector 7 goes through

  the printing area between the cylinder of im-

  pressure 9 and the counter cylinder 12 of the first

  printing group and takes over the imme-

awarded with the first color.

  Correspondingly to the number of groups

  The other colors are applied in the same way. The print color then penetrates slightly into the lacquer layer, so that in the next printing unit there are no back slits and no smearing. Before contact, between the central printing and transport cylinder

  sheets 4.1 and the test collector element

  awarded, the applied lacquer layer, including the applied color, is liquefied from the printed proofing element 7 by means of the second

26268 13

  dryer 38. by heat input, from. so that

  lacquer is likely to be almost complete-

  separately from the rubber blanket and that the

  theirs can be completely transferred and is

  on the sheets during the course of the area between the sheet-carrying cylinder 4 and the printed proof-collecting element 7. Then, the sheet

* is fed to the sheet transfer device 5.

  The printing of a band is done in a similar way.

  -In the realization in the form of print-

  On the front and back side, after printing the first row of sheets, there is a transfer of the sheet on the printing cylinder on the back 29.1 and, as previously described,. printing the back of the sheet with a printing device

  on the reverse side 28 in the form of an

  known pressure 28.1, or with another printed-proof collector 28.2. Then, the

  sheet is fed to the sheet-transfer.

  Printing on the back in the case of a

  China roller is made analoglue.

  The advantages of this system lie in the

  simplification of leaf transport, even in

  case of printing on the front and back and in li'm-

  pressure without problem of smearing girce to a number

  minimal energetic continuity solutions.

Claims (18)

  1.- Proof-proofing machine comprising a print paper supply, a printing paper transport system and a printing paper discharge, comprising at least one printing-form cylinder (9) with inking device (10) and wetting device (11) and at least one printed proof transfer element in contact with the transport system of   printing paper and printing form cylinder   printing machine, characterized in that the printing paper transport system is produced under the   form of a cylinder system (4) co-operating with the   vacating the printing paper and with the food   printing paper, an opposing cylinder   (12) being associated with each cylinder of im-   pressure (9), a lacquer supply device (36)   cooperating with an opposing cylinder (15) being   placed with a first dryer (37) in front of the first printing unit, the printed proof collecting element being in the form of an endless band-shaped printed proof collecting member (7). contacting the cylinder system (4) and passing through the printing zone between at least one impression-form cylinder (9) and at least one counter-roll (12) and through the area between the device lacquer supply (36) and the counter cylinder. (15) as well as through the action area   first dryer (37), while following the last   deny printing group is arranged a second dryer   (38) acting on the test collector element awarded (7).   2.- Printer with proof transport se-   1, characterized in that the system   cylinder (4) is formed in the form of a central printing cylinder (4.1) for guiding   sheets with at least one plug system (6).   - 3.-Printer with proof transport se-   1, characterized in that the system   cylinder (4) is formed by a central printing and sheet conveying cylinder (4.1) with at least one gripping system (6) and at least one   a drum system (27) forming part of an arrangement   printing device (28) disposed thereafter.the central printing and transporting cylinder of   sheets (4.1) and containing at least one cylinder of pressure on the back (29).   4.- Printer with proof transport se-   Ion claim 1, characterized in that the system   cylinder (4) constitutes a first cylinder   central printing and web transport (4.2).   $ .- Printer with proof transport se-   1, characterized in that the system   cylinder (4) as the first central cylinder   tral printing and transporting tape (4.2) is   consisting of at least one drum system (27) made   part of a printing device on the back (28) arranged after the central cylinder for printing and transporting tape (4.2) and containing at least one   cylinder print on the back and e transport -de- of (29.2).   6.- The printer with proof transport se-   3, characterized in that the system   ture (27) consists of at least one cy-   3 print liner on the back of the sheets (29,1) with at least one gripping system (6) -   7.- IZprinter with proof transport se-   3, characterized in that the system   drum head (27) is constituted by a printing cylinder on the back of the sheets (29,1): with at least one gripping system (6) and at least one transfer cylinder (30) with at least one socket (6).   8.- Printer with proof transport se-   5.on claim 3, characterized in that the system   drum drum (27) consists of two transfer cylinders with the choice of cylinders   leaf inversion (29.1; 31) or decylin- transport goods (32).   9.- Printer with proof transport se-   in claim 3, characterized in that the system   drums (27) consists of four cylinders   transfer machines with the choice of cylinder shape   leaf inversion (29.1; 31; 33; 34) or   many transport cylinders (32).   10.- Printer with proof transport   according to any one of claims 3 or 5,   characterized in that the back printing device (28) is in the form of a printing device (28.1) consisting of a printing forme cylinder   (9) with inking device and wetting device   (10; 11) and by an offset cylinder (26) are   in printing contact with the forme cylinder   printing and. the drum system (27).   11.- Printer with proof transport   according to any one of claims 3 or 5,   characterized in that the printing device   reverse side (28) takes the form of another collection   of printed proofs (28.2) - being satisfied   printing tact with the drum system (27) and having at least one impression-form cylinder   (9) with inking device and wetting device   lage (10; 11) and an opposing cylinder (12).   12.- Printer with test transport according to claim 1, characterized in that : 2626813   minus one impression-form cylinder (9) with dis-   positive inking and wetting device- (O; 11)   is disposed above the upper strand (13) of the   collection of hard copies (7).   $ 3.- printer with proof transport according to claim 1, characterized in that   minus one impression-form cylinder (9) with dis-   positive anchor and wetting device (1O, 11)   is disposed below the lower strand (14) of the   print collection collector (7).   14. Printer with proof transport according to claim 1, characterized in that   minus one impression-form cylinder (9) with dis-   positive inking and wetting device (10 ;, il)   is arranged above the upper strand (13) of the   collection of hard copies (7), and that   minus one impression-form cylinder (9) with dis-   positive inking and wetting device (10; 0 1)   is disposed below the lower strand (14) of   Printed Evidence Collector (7).   15.- Printer with proof transport   according to claim 1, characterized in that the   the printed proof collector (7; 7 ') is in the form of an endless offset printing blanket (Z).   16. A printer with proof transport according to claim 1, characterized in that at least one offset printing blanket part (19) is connected to the printed depressive collector element. (, 7 ').   17.- Printer with transport of elephants   according to claim 1, characterized in that the   the evidence collector (7; 7 ')   at least one gripping system (20) for one section   offset printing blanket (21).   18. Printer with proof transport according to claim 1, characterized in that the lacquer supply device (36) is constituted by a lacquer pan (39), an application roll (40). a lacquer dosing cylinder (41) and a cylinder of drawing of lacquer (42).   19. Printer with proof transport according to claim 1, characterized in that the   first dryer (37) constitutes an initial dryer.   20.- proof transport printer according to claim 1, characterized in that the   second dryer (18) constitutes an energy dryer.