EP2408621B1 - Printing machines having one or more printing units designed as printing towers for double-sided multicolor printing and devices for controlling the temperature of components of one or more of the printing units - Google Patents

Description

The invention relates to a printing press with one or more printing units designed as printing towers for double-sided printing on both sides and a device for tempering components of one or more of the printing units according to the preamble of claim 1.

By the WO 2004/054805 A1 a method and a device for controlling the temperature of a component of a printing unit is known, wherein a circulating in a fluid fluid is in thermal contact with the component to be tempered. The fluid of the circuit is in this case fed to adjust a desired fluid temperature via a primary circuit if necessary with tempered fluid. However, it may instead be provided a heating or cooling unit in the temperature control.

Also the WO 2006/072558 A1 discloses a tempering system for tempering components. In this case, provision of temperature control means of three temperature levels takes place via three supply circuits to a decentralized supply unit close to the pressure tower. As a result of these supply circuits, individual temperature control circuits for the rollers / cylinders are fed, as required, with metered-in fluid from one of the supply circuits.

The EP 0 383 295 A2 discloses a tempering of a printing unit roller, wherein at a four-way valve as a node between a primary circuit and the component tempering temperature control by appropriate inflows and outflows a desired mixing temperature for the temperature control can be produced. In the primary circuit a heat exchanger is provided for cooling the fluid and, if required, preheating a heating element.

In the EP 0 886 577 B1 is also a device for controlling the temperature of a component disclosed. In one embodiment, coolant circulates continuously in a tempering through the cylinder or cylinders to be tempered and by a cooling unit in which the temperature of the coolant is controlled according to specifications from a control unit. A cylinder to be flowed through has an inlet and outlet for the coolant on the transmission side. The cooling unit may be configured to lower or raise the temperature of the coolant. In one embodiment, a temperature of one of the operating side opposite transmission-side wall of the printing unit is provided. This is done by means of circulating in a circuit gear oil, which is temperature controlled via a heat exchanger by a temperature control unit having a primary circuit.

By the DE 38 22 486 A1 is a trained for measuring the web tension driven roller disclosed, which has on one end face a drive wheel and, in a special embodiment of the roller as a cooling roller, on the other side a coolant supply and discharge.

The DE 10 2007 003 619 A1 relates to a sheet-fed printing press with a central tempering device. The sheet-fed press has vertically in succession a plurality of printing units whose inking and dampening units are tempered. For this purpose, a tempered by the tempering primary circuit is provided from the flow inner, each having a pump temperature control circuits are fed via metering valves. With the tempering device, the primary circuit fluid can be cooled or heated.

The DE 10 2005 005 303 A1 discloses a tempering system, wherein tempered by a refrigeration control fluid is guided in an external cooling circuit. For the printing units of one or more printing towers of a section, a decentralized supply device is provided in each case, wherein in this supply device a plurality of inner temperature control for the temperature of rollers and cylinders of the printing tower from the outer cooling circuit are fed as needed. The supply unit comprises for the inner circuits in each case a control valve for the metered addition of the fluid into the inner circuit and a pump which promotes the inner circuit. In addition, an outer Heizwasserkreislauf be provided, which can also be removed in the area of the supply unit fluid for temperature control of several inner temperature control circuits.

In the US 5 603 261 A is a printing machine with vertically successively arranged printing units to be tempered rollers described. The temperature is controlled via hose lines from a central tempering ago.

The DE 200 12 101 U1 discloses a concept for supplying a printing press and teaches to centrally group all the peripheral function supply systems of a printing machine as modules in a compact supply arrangement. In a refrigeration module, cooling fluid is provided which is a first In a "fluid module", for example, the dampening solution is cooled by the cooling fluid of the first circuit before being returned to the dampening units of the printing press. Furthermore, a device for controlling the temperature of Farbreiberwalzen be provided via a Temperierkreis in the liquid module, wherein the cooling energy is supplied to the Temperierkreis in the liquid module via a heat exchange with the fluid of the cold module or by admixing of cooling fluid from the circuit of the cold module. In one embodiment of the dry offset with the requirement of different fluid temperatures for different rollers for each temperature level, a temperature control, each with a pump and a control valve 29 in provided central module. Furthermore, each temperature control circuit in the central module can be assigned an electrical heating element.

By the DE 602 22 706 T2 is a flexographic printing machine with means of air circulation disclosed.

The invention has for its object to provide a printing machine with one or more printing towers designed as printing units for double-sided multi-color printing and a device for temperature control of components of one or more of the printing units.

The object is achieved by the features of claim 1.

The achievable with the present invention consist in particular that faster reaction times for the temperature of the components to be tempered, in particular cylinders and / or rollers can be achieved.

On the one hand, considerably shorter line paths, and thus less circulating tempering fluid and shorter transport times, are required.

In one embodiment with heating unit arranged in the secondary circuit, provision of heating fluid, a separate heating primary circuit or heating of a primary circuit can be dispensed with.

Due to the component-near arrangement of all modules or units of the primary circuit lower pump power is required in addition to the shorter lines.

Particularly advantageous is the arrangement of the aggregates of the primary circuit for the roll or cylinder temperature control on a drive side opposite the machine side of the printing unit (often referred to as the operating side), since inflow and return can be done without regard to drive mimic the cylinder / rollers. It is particularly advantageous here, the or at least significant aggregates of the primary circuit or one of the pressure unit associated loop of the primary circuit in a plane below the main operating level and / or in a plane below the foot of the printing unit, z. B. in an example coverable recess or pit, to order.

An embodiment of the invention is illustrated in the drawings and will be described in more detail below.

Fig. 1

eine perspektivische Darstellung einer Druckeinheit;

Fig. 2

eine schematische Seitenansicht einer Druckeinheit auf der der Antriebsseite gegenüberliegenden Maschinenseite;

Fig. 3

eine schematische Draufsicht auf ein Druckwerk der Druckeinheit;

Fig. 4

eine Schemadarstellung der Temperierung anhand eines Sekundärkreislaufs;

Show it:

Fig. 1

a perspective view of a printing unit;

Fig. 2

a schematic side view of a printing unit on the opposite side of the drive side machine;

Fig. 3

a schematic plan view of a printing unit of the printing unit;

Fig. 4

a schematic representation of the temperature control based on a secondary circuit;

A printing machine, z. B. web-fed rotary printing press, has one or more printing units 01 for the two-sided multi-color printing of substrates, eg. B. webs, preferably paper webs, in particular of webs of newsprint. Fig. 1 shows a perspective view of an embodiment of a printing unit 01, in which a material web, not shown, short web, on both sides simply or in particular several times in succession, z. B. here four times, or several tracks at the same time one or more times are printable. The printing unit 01, which is in the form of a printing tower 01 with substantially vertical web travel, has a plurality of printing units 04, in particular a plurality of double printing units (in the present case four) arranged vertically one above the other from two cooperating printing units 04 for the two-sided printing in rubber-against-rubber operation on. However, it could also be provided in principle stacked satellite printing units to a printing tower 01. Again, this is due to the vertically stacked printing units and the web run from bottom to top as a printing tower with a substantially vertical web run - in contrast to, for example, commercial printing - to be understood. The printing unit 01 has two side frames 02; 03, in which the cylinders and rollers of the printing unit 01 are mounted frontally. In an advantageous embodiment, the printing unit 01 is in the range of its (double) pressure point (s) 05, operationally, ie designed for setup and maintenance purposes (in contrast to disassembly or disassembly), divisible. For this purpose, the printing cylinder 06; 07 of the plurality of (four) stacked double printing units rotatably mounted in or on a right and a left frame or wall section in such a way that the two printing cylinder 06; 07 of the same printing unit 04 are assigned to the same frame or wall section. Preferably, the printing cylinder 06; 07 more, especially all the web on the same side printing printing 04 on the same frame or wall section of the corresponding side frame 02; 03 stored. The two wall sections of a side frame 02; 03 are together with the supported by these printing units 04 at a distance from each other.

The printing unit 01 stands with its side frames 02; 03 on a ground plane G of the printing machine, which also represents a main operating plane G at least for the lower printing units 04 of the printing unit 01 at the same time. In this, z. B. also the footprint of the printing unit 01 having, ground plane G are in one embodiment, aggregates of a below explained in more detail tempering, z. B. in one appropriately trained depression 09, z. B. pit 09, arranged sunk. The aggregates of the tempering are, or the pit 09 is in this case preferably on the side of a S II, z. B. drive side S II (see below) different side SI of the printing unit 01.

In the Fig. 2 schematically illustrated double printing units are each formed by two printing units 04, which each have a cylinder 06 formed as a transfer cylinder 06 and a forme cylinder 07; 07, z. B. printing cylinder 06; 07, and each have an inking 08. In each case between the two transfer cylinders 06 a (double) pressure point 05 is formed in Anstelllage. The above components are only on the top double printing the Fig. 2 referred to, wherein the stacked (double) printing units 04, however, essentially - are executed identically - in particular in the embodiment of the relevant features of the invention. The four cylinders 06; 07 of the double printing units can preferably - as shown - be executed lying in print-on position with their axes of rotation in a common plane.

The printing units 04 are hereby preferably designed as dry offset printing units for the "dry offset" or "waterless offset printing", ie the execution of printing forme and inking unit 08 is such that no dampening solution and thus no dampening unit is provided. The cylinders 06; 07 of each double printing unit are rotationally driven by at least one drive motor 11 that is mechanically independent of other double printing units ( Fig. 3 ). Advantageously, the two cylinders 06; 07 of each printing unit 04 by at least one drive motor 11, but preferably driven in each case by a separate drive motor 11 rotationally.

The inking unit 08 has at least one roller 12 to be tempered, z. B. inking roller 12. It is advantageous here as a so-called. Short inking unit 08 formed and has a tempering roller 12 with Haschuren or cup, z. Legs Anilox roller 12, which relates the color of an inking device, in particular a chambered doctor blade (or even a non-illustrated compactor from an ink fountain ago) and at least one, preferably at least two, roller (s), z. B. application rollers, in particular with respect to the anilox roller 12 softer surface, emits to the printing plate of the forme cylinder 07. The anilox roller 12 can rotationally via a drive connection from the printing cylinder 06; 07 be driven forth, but is preferably by its own, of the cylinders 06; 07 independent drive motor 13 rotationally driven. The remaining rollers are preferably driven by friction.

The drive motors 11; 13 at least the cylinder 06; 07 and preferably the rollers 12 (and possibly existing drive connections) are on one side II, z. B. drive side S II, the printing unit 01 is arranged. On this page S II can also be a line of the drive motors 11; Be provided 13 tempering cooling circuit. When divisible trained printing unit 01 then at least two of the drive motors 11; 13 tempering cooling circuits, namely at least one per wall section provided.

At least one rotating component 07; 12, in particular as a roller 12 and / or as a cylinder 06; 07 of the printing unit 01, preferably each printing unit 04 of the printing unit 01, formed component 06; 07; 12 is formed temperable. For this purpose, the relevant roller 12 or the relevant cylinder 06; 07 in thermal interaction with a temperature control circuit 14; 16 ( Fig. 4 ). This is here as a fluid leading secondary circuit 14; 16 formed, wherein the component 06; 07; 12 (of the "type" roller and / or the "type" cylinder, in particular forme cylinder) fluid via an inlet 17 and is discharged via an outlet 18. Preferably, for each of the printing units 04 of the printing unit 01, a tempering circuit 14 is provided for tempering a component 07 formed as a forme cylinder 07 and a temperature control circuit 16 for tempering a component 12 formed as an anilox roller 12.

The inflow and outflow of tempering fluid to be tempered component 07; 12 is preferably carried out on the drive side II opposite side I of the printing unit 01, d. H. on the side of the "user-side" side frame 02. Inflow 17 and outlet 18 are indicated here only by arrows and can be in a conventional manner as rotary unions, in particular as coaxial with each other and the axis of rotation lying guides formed.

The temperature control is on the one hand by the already mentioned above, with the component to be tempered 07; 12 in contact tempering circuit 14; 16 (as a secondary circuit 14, 16) formed. The fluid of the secondary circuit 14; 16 can be fed to its temperature control as required by fluid of a primary circuit 19 via a corresponding connection path 20 by colder fluid ( Fig. 4 ). For this purpose, the temperature control circuit 14; 16 at least one feed point 21 for fluid from the primary circuit 19 and a pump 22 and at least one temperature sensor S01; S02; S03; S04; S05, in particular at least one component 07; 12 upstream or associated temperature sensor S01; S02; S03 on. Preferably, the temperature circuit 14; At least one temperature sensor S01 close to the feed point and a temperature sensor S02 close to the component; S03 on. The feed point near temperature sensor S01 is preferably located between feed point 21 and pump 22. The latter is advantageously located upstream of the component 07 to be tempered; 12. Between the feed point 21 and the first temperature sensor S01 can advantageously be provided a Verwirbelungskammer 23, which provides due to their deviating from the supply line in its cross-section expression for a generated by vortex mixing. In addition, or partially instead, the said temperature sensors S01; S02; S03 may be downstream of the component 07; 12, a temperature sensor S04 and / or a temperature sensor S05 close to the feed point may be provided in the return flow near the component. The measured value of the at least one temperature sensor or a plurality of the illustrated or all illustrated temperature sensors S01; S02; S03; S04; S05 becomes one only in Fig. 4 supplied without reference to the spatial arrangement indicated control and / or regulating device 25, which on a between primary circuit 19 and secondary circuit 14; 16 arranged valve 24, z. B. metering valve 24, in particular a digital mixing valve, acts. In one embodiment, the valve 24 also directly in the secondary circuit 14; 16, z. Example, as a three-way valve, be arranged, in which case the primary circuit-side entry into the valve 24 is also the feed point 21 in this case. Although it is then a Einspreisstelle 21 and a valve 24 is provided, which then fall quasi spatially together.

In an advantageous embodiment of the secondary circuit 14; 16, in particular for one of the anilox roller 12 associated secondary circuit 16 is in the circuit in addition an optional by the control and / or regulating device 25 activatable and / or controllable heating device 26, for. B. an electric heater, z. B. provided as so-called. "Heating cartridge". About this heater 26, the temperature of the circulating fluid, and thus the component to be tempered 07; 12 are heated. This is particularly advantageous in the starting phase of the machine, in particular for the temperature control of the anilox roller 12, since the ink quantity to be recorded is controlled by the temperature of the anilox roller 12. For the tempering of the forme cylinder 07, the heater 26 may be omitted, since the behavior is less sensitive to the temperature.

Due to the possibility of initial heating, the anilox roller 12 can thus already be brought to the required operating temperature without frictional heat generated by the operation. If the temperature rises later during operation of the printing press, then the heating device 26 can be deactivated, and the temperature can be controlled by supplying cooling fluid from the colder primary circuit 19 on demand. Preferably, the control of the heater 26 is also carried out via the above-mentioned control and / or regulating device 25. Die Temperaturregelung am Secondary circuit 14; 16 takes place, for example, as follows: The control and / or regulating device 25 are -. B. from one of a higher-level machine control or a control center implemented logic - the printing process related data, in particular an indication of the target and / or actual speed v and / or data supplied to the color type used. On the basis of these data, a suitable desired temperature (possibly only maximum temperature) for the component 07 to be tempered is produced by appropriate storage and / or computing means. 12 determined. The means for determining the target temperature need not be housed structurally in a same objective control and / or regulating device 25, but may also be provided in the control room itself or a machine control. In this case, the setpoint temperatures of the above-mentioned control and / or regulating device 25 are transmitted as setpoint data. A single or multi-loop control of the control and / or regulating device 25 acts by comparing one or more of the actual temperatures (at S01, etc.) with the relevant setpoint according to their implemented logic on the valve 24, and if necessary and when needed, on the heater 26 to the target temperature on the component 07; 12 or at least reach the relevant temperature measuring point.

As stated above, in the respective secondary circuits 14; 16 colder fluid from a primary circuit 19 metered. This primary circuit 19 can in the simplest case (in Fig. 4 shown in dashed lines) only the secondary circuits 14; 16 of a printing tower 01 associated circuit with a pump 27; 28 and a refrigeration unit 33 'and a removal point and a return point depending to be supplied secondary circuit 14; 16 be. However, it can also - as here present - have a parent circuit 29, which a plurality of parallel primary circuit branches 35, z. B. one for each to be tempered printing unit 01 or printing tower 01, feeds.

The primary circuit 19 (or at several connected pressure units 01 a branch of the primary circuit 19) has at least one pump 27; 28 and a cooling unit 33 for providing a cooling fluid cooled below ambient temperature (eg a chiller, possibly with a supply container) and a supply line 31; 34 and a return line 32; 36 on. In the present case, the flow line 31, 34 composed of a line section of the flow line 31 of the parent circuit 29 to a sampling point 37 and a line section of the flow line 34 of the relevant primary circuit branch 35 together. Accordingly, the return line 32, 36 composed of a line piece of the return line 32 of the parent circuit 29 to a return point 38 and a line piece of the return line 36 of the relevant primary circuit branch 35 together. The flow and return lines 34; 36 extend in the printing unit 01 preferably substantially vertically as climbing and downpipes.

Preferably, in the embodiment with a parent circuit 29, both this parent circuit 29 and the primary circuit branches 35, a pump 27; 28 on. This makes it possible to ensure that the respective primary circuit branches 35 can be operated in each case with suitable pressure despite possibly different effective line resistances.

In addition to this own pump 27, the primary circuit branch 35 z. As well as a pressure equalization vessel 42. The primary circuit branch 35 may between a last withdrawal point 44 and one of the first return point 46, a valve 39, z. B. have a throttle valve to produce a pressure gradient between flow line 34 and return line 36 and / or even with no or slight removal of fluid into the connected secondary circuits 14; 16 to ensure a minimum circulation of fluid in the primary circuit branch 35. The valve 39 is preferably changeable in its effect, in particular designed remotely operable. Especially before or during a restart of the machine, the "warm" fluid in the lines of the primary circuit branch 35 can then be heated or exchanged quickly so that it does not have to flow through the components to be tempered.

The pump 27 is preferably with respect. A differential pressure between flow and return, especially between a measuring point in the flow line 34 after the pump 27 and before the first sampling point 44 and a measuring point in the return line 36 after the last return point 46 in the primary circuit branch 35 and operated the return point 38 in the parent circuit 29, regulated or run so operable together with the measuring points. Preferably, it is or a control module associated with it to a desired differential pressure, z. B. a lying between 1 and 3 bar differential pressure, in particular a differential pressure of 1.8 to 2.3 bar, set. Change the line resistance, z. B. by changing extraction flows into the secondary circuits or by changing the setting of the valve 39, so the appropriate differential pressure level between flow and return is still maintained. This ensures that the conditions when metering into the secondary circuits 14; 16 are always constant and thus a better calculable control process can take place.

Likewise, the parent circuit 29 between the last sampling point 37 and the first return point 38, a valve 41, z. As a throttle valve, have to generate a pressure gradient between the feed line 31 and return line 32 and / or even with no or slight removal into the primary circulation branches 35 to ensure a minimum circulation of fluid in the parent circuit 29.

In the present embodiment, a plurality of secondary circuits 14; 16 with the corresponding units, in particular at least one temperature sensor S01 - S05, a pump 22, the metering valve 24 and possibly a Heinzeinrichtung 26, z. B. heating unit 26, is provided. Advantageously, the printing unit 01 close to the printer, in particular one above the other, several, aggregates of the secondary circuits 14; 16 having assemblies 43 assigned (see Fig. 1 to 3 ). These assemblies 43 each have the metering valves 24. Preferably located the assemblies 43 approximately at the height of the printing units 04, the components to be tempered by this assembly 43 07; 12 included. The assemblies 43 are preferably the front side of the printing unit 01 (ie on a front side of the cylinder 06, 07) z. B. on the side frame 02; 03 or connected to the latter frame part, in particular within a frontal, z. B. supply lines and possibly auxiliary units having, space 10, also referred to as an end-side control cabinet 10 (eg., Supply and / or switchgear and mechanics containing) arranged. This is z. B. by the side frame 02 on the one hand, and one with the side frame 02 a space 10 enclosing panel by optionally lateral walls and a closable front panel is formed. This arrangement of the assemblies 43, which is integrated in or on the side frame 02, makes it possible to arrange each secondary circuit 14 close to the printing mechanism; 16, in particular the printing station near feed point 21, which causes a considerably shorter reaction time. The space 10 can basically on the front page continuously or z. B. in the case of centrally divisible pressure units 01 (as shown) may be formed as two at least partially separated to the middle rooms 10. In the case of divisible pressure units 01, however, only one space 10 may be provided, the halves then z. B. in the open position of the printing unit 01 to the middle are also open.

Preferably, the secondary circuits 14; 16 arranged on the drive side S II opposite end face.

Each anilox roller 12 of the printing unit 01 is preferably a secondary circuit 16 with the corresponding units (at least one temperature sensor S01-S05, a pump 22, in the case of the anilox roller 12, a heating unit 26 is additionally provided in the secondary circuit 16). These secondary circuits 16 are then in an advantageous embodiment as shown in FIG Fig. 1 and the schematic representation in FIG Fig. 2 housed in the individual modules 43 near the printer.

In principle, forme cylinders 07 of different printing units 04 to be tempered can be supplied by a common secondary circuit 14. It is advantageous, however, if each forme cylinder 07 can be tempered by its own secondary circuit 14.

In the event that the forme cylinder 07 and the anilox rollers 12 of all printing units 04 of the printing unit 01 each have their own temperature, one of the number of printing units 04 corresponding number (here eight) of the form cylinders 07 associated secondary circuits 14 and one of the number of printing units 04 corresponding number (eight here) provided by the anilox rollers 12 associated secondary circuits 16. The aggregates of the same printing unit 04 related secondary circuits 14; 16 may be formed in this case preferably in the manner of a module 43. This can then be arranged in a number corresponding to the number of printing units 04 in substantially the same embodiment in the printing unit 01 or at the end face, in particular one above the other at different heights from each other. In principle, units of several, in particular adjacent, printing units 04 relevant secondary circuits 14; 16 may be formed in the manner of an assembly 43. For example, the aggregates of two secondary circuits 16 of anilox rollers 12 and the aggregates of a secondary circuit 14 for two forme cylinder 07 or two secondary circuits 14 of two forme cylinder 07 in the manner of a module 43 several times, z. B. a total of four times (each side two superimposed), be arranged in the printing unit 01 or the lateral enclosure.

Advantageously, an embodiment, in particular for the case of a separable printing unit 01, in which for the left printing units 04 a left primary circuit branch 35 and for the right printing units 04 a right primary circuit branch 35, each with the corresponding flow or return lines 34; 36 is provided. On the conduction path between the riser and downpipes of the movable part of a divisible Printing unit 01 and the respective removal or return point 37; 38 from the parent circuit 29 are then preferably flexible pipe sections, z. B. hose pieces provided.

As already mentioned above, it is advantageous if a certain pressure unit 01 associated with aggregates of the primary circuit 19 - z. B. the pump (s) 27 and possibly provided pressure equalization vessels 42 - in a plane below the ground plane G, d. H. below the main operating plane G, and / or in a plane below the foot of the printing unit 01, z. B. in the example coverable recess 09, are arranged. In the case of a set up in table setup, so on a gallery level printing unit 01, the recess 09 is also formed, for example, as below the level or step level of the operator in the foot frame or arranged as a gallery frame recess. Is the recess 09 or pit 09 - as advantageous - designed optionally coverable, it is accessible, but spatially not disturbing for the operation of the machine from the front side. Even with the measure of sunk arranged aggregates the line lengths are shortened, while the frontal accessibility is guaranteed to the instrument room.

In the case of a plurality of printing units 01, in this embodiment, therefore, all the printing units 01 have the frontal, in particular coverable depression 09. In this recess 09 are the fluid in the respective primary circuit branch 35 promotional pump 27, and advantageously the connection points (withdrawal and return points 37, 38) between parent primary circuit 29 and the corresponding primary circuit branch 35 (the relevant pressure unit 01), easily accessible if needed, arranged.

The "architecture" of the tempering is thus effective, space-saving and extremely responsive design by a parent circuit 29 (substantially predominantly horizontally between the towers 01 running) leads to a cooled below the ambient temperature fluid at the respective printing towers 01 respectively Fluid taken from the parent circuit 29 and in a (essentially vertically through or on the towers 01 running) primary circulation branch 35 rotates, with withdrawal points 44 from the primary circuit branch 35 for the secondary circuits to be tempered 14; 16 as well as their essential aggregates (eg pump 22 and metering valve 24) as close as possible to the component, ie distributed in the printing tower 01 at different heights.

LIST OF REFERENCE NUMBERS

01

Printing unit, printing tower

02

side frame

03

side frame

04

printing unit

05

(Double) Druckstelle

06

Printing cylinder, cylinder, transfer cylinder

07

Printing cylinder, cylinder, forme cylinder, component

08

Inking unit, short inking unit

09

Well, pit

10

Room, control cabinet

11

drive motor

12

Roller, inking roller, anilox roller, component

13

drive motor

14

Temperature control circuit, secondary circuit

15

-

16

Temperature control circuit, secondary circuit

17

inflow

18

outlet

19

Primary circuit (29, 35)

20

link

21

feed point

22

pump

23

swirl

24

Valve, metering valve

25

Control and / or regulating device

26

Heating device, heating unit

27

pump

28

pump

29

Circulation, superior

30

-

31

supply line

32

Return line

33

refrigeration unit

34

supply line

35

Primary circuit branch

36

Return line

37

sampling point

38

return point

39

Valve

40

-

41

Valve

42

The pressure equalizing vessel

43

module

44

Withdrawal point (34)

45

-

46

Return point (36)

33 '

refrigeration unit

G

Ground level, main operating level

v

Target and / or speed

S01

temperature sensor

S02

temperature sensor

S03

temperature sensor

S04

temperature sensor

S05

temperature sensor

SI

page

SII

Side, drive side

Claims (16)

1. A printing machine having one or more printing units (01) designed as printing towers for double-sided multicolor printing and a device for controlling the temperature of components (07; 12) of one or more printing units (01), the printing unit (01) having a number of printing couples (04) arranged vertically one above the other with in each case at least one component (07; 12) to be temperature controlled and with printing couple cylinders (06; 07) driven on a drive side (SII) by at least one drive motor (11), at least two, different printing couples (04) assigned to temperature-controlling components (07; 12) for temperature control thereof being in thermal interaction with two secondary circulations (14; 16) different from one another, the secondary circulations (14; 16) in each case having at least one pump (22) and one feed point (21), and fluid of a primary circulation (19; 29, 35) being meterable to the respective secondary circulation (14; 16) for temperature control thereof via a valve (24) on the feed point (21) of the secondary circulation (14; 16), characterized in that at least the valves (24) and/or pumps (22) and/or feed points (21) assigned to the two secondary circulations (14; 16) that are different from one another are arranged on a front-side machine side at a height different from one another, in that the two secondary circulations (14; 16) are connected by means of the valves (24) with a same, essentially vertically running feed line (34) of the primary circulation (19), and in that the secondary circulations (14; 16) situated at a different height are arranged on the front side of the printing unit (01) opposite to the drive side (SII).
2. The printing machine according to claim 1, characterized in that the valves (24), pumps (22) and feed sites (21) assigned to the vertically offset secondary circulations (14; 16) are arranged in a front-side space (10) formed by the side frame (02) and a closable lining in the manner of a housing, in particular a control cabinet (10).
3. The printing machine according to Claim 1, characterized in that an optionally activatable electrical heating device (26) is provided in the secondary circulation (14; 16) additionally to the feed site (21).
4. The printing machine according to Claim 1, characterized in that the valves (24), pumps (22) and feed sites (21) assigned to vertically offset secondary circulations (14; 16) are arranged to one another such that a route between the valve (24) and the entry to a component (07; 12) to be temperature controlled is essentially identically long for two components to be temperature controlled by the two secondary circulations (14; 16).
5. The printing machine according to Claim 1, characterized in that the valve (24) and the pump (22) are components of an assembly (43), in particular of a premounted usable assembly (43).
6. The printing machine according to Claim 1, characterized in that for each of the printing couples (04) of the printing unit (01) at least one secondary circulation (14; 16) is provided and/or an assembly (43) containing at least the feed site (21), the valve (24) and the pump (22) of a secondary circulation is assigned.
7. The printing machine according to Claim 1, characterized in that the at least two secondary circulations (14; 16) are connected by means of the valves (24) to a same, essentially vertically running flow line (34) of the primary circulation (19) or of a primary circulation branch (35) of the primary circulation (19).
8. The printing machine according to claim 1, characterized in that on the front side of the printing unit (01) is provided a recess (09) in a ground plane (G) carrying the printing unit (01), in which is arranged at least one pump (27) of the primary circulation (19).
9. The printing machine according to Claim 5, characterized in that the vertically offset secondary circulations (14; 16) are arranged essentially at the height of the printing couples (04), which contain the components (07; 12) to be temperature controlled by this secondary circulation (14; 16).
10. The printing machine according to Claim 1, characterized in that on or next to a side frame (02) of the printing unit (01) at least one flow and one backflow line (34; 36) of the primary circulation (19, 35) extends up to the height of a branch for the secondary circulation (14; 16) of the uppermost printing couple (04) or of a primary circulation branch (35) of the primary circulation (19).
11. The printing machine according to Claim 1, characterized in that a number of printing units (01) are provided at a distance from one another horizontally, the secondary circulations (14; 16) of which are connected to the supply thereof by a common primary circulation (19; 29, 35).
12. The printing machine according to Claim 11, characterized in that to each printing unit (01) is assigned at least one primary circulation branch (35), which is connected to a common, upper primary circulation (29).
13. The printing machine according to Claim 1, characterized in that printing couple cylinders (06; 07) of the printing couple (04) designed as forme cylinders (07) and transfer cylinders (06) are driven rotationally on the drive side (SII) by at least one drive motor (11) mechanically independent of other printing couples (04).
14. The printing machine according to Claim 1, characterized in that the printing couples (04) of the printing unit (01) are designed as dry offset printing couples.
15. The printing machine according to Claim 1, characterized in that storage and/or calculating means are provided in a regulating and/or control device (25) or a machine control or a control centre, by means of which a target temperature value for the component (07; 12) to be temperature controlled or the recirculating fluid is determinable in dependence on a machine speed and/or of data for the ink type used.
16. The printing machine according to Claim 1, characterized in that in the primary circulation (19) or primary circulation branch (35) supplying the at least two secondary circulations (14; 16) a valve (39) is provided between a last removal site (44) and a first return site (46).

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