EP3272535A1 - Web printing machine provided with operating and supporting modules - Google Patents

Abstract

The invention relates to a web printing machine (100) which combines high flexibility in its configuration with an accurate storage of processing modules (20) and a cost-effective machine frame (30). The web printing machine (100) according to the invention has a machine frame (30) and a plurality of machining modules (20) mounted thereon. Advantageously, a respective processing module (20) by means of a carrier module (10) on the machine frame (30) is fixed, and a respective carrier module (10) has two parallel, in the machine direction (M) extending longitudinal beams (11) and two at right angles arranged thereon, parallel to each other and the two longitudinal beams (11) interconnecting transverse beams (12).

Description

The invention relates to a web press with the preamble features of claim 1.

State of the art

In printing machines for printing labels and cartons, great flexibility or variability is increasingly desired in order to be able to carry out as many different types of printing jobs as possible, in particular by producing special optical effects through the printed image or the printed text. For the production of labels and folding cartons printing presses are particularly frequently used, which process a narrow web of a printing material and have a number of connection platforms or interfaces, on each of which a functional unit or a process module for printing can be detachably picked up with a specific printing process. For example, one embodiment of such a printing press is in the document US 4,384,522 described. The individual functional units can work with mutually different printing methods.

From the documents DE 195 13 536 A1 and WO 95/29813 Multi-printing presses are known in series construction which permit the detachable receipt of a number of functional units or process modules on a number of interconnect platforms. The functional units may contain, among other things, printing units or parts of printing units in cassettes or essays which operate according to a letterpress method, a flexographic printing method, a screen printing method, an offset printing method, a gravure printing method or an inkjet printing method. In addition, functional units (processing units) are provided which allow mechanical processing steps on the printing material, for example, an embossing, a trimming (perforation, punching) or make a turn. such Printing machines that can operate on a variety of different printing processes are also referred to as combination printing machines or hybrid printing machines.

For many years, the machine frames of printing presses have been made for the most part from metallic materials, in particular from steels. In printing presses with modern printing technology mostly large castings or massive steel plates for the machine support structure are used, which undergo their shaping in technically complex and often costly processing steps. This elaborate processing is required to create the receiving points for machining modules position exact in the machine support structure. Together with the material costs results for the machine frame of a printing press so a high proportion of the total cost of the printing press.

task

Object of the present invention is to provide a web printing machine, which combines a high flexibility in their configuration with an accurate storage of processing modules and a cost-effective machine frame.

Technical solution

This object is achieved by a web printing machine having the features of claim 1.

The web printing machine according to the invention is used for printing a substrate web, for example of paper, plastic or composite material, in particular for the production of labels. The substrate web is transported in a machine direction through the web printing machine and thereby processed. The web press has a machine frame and several processing modules mounted thereon. The processing modules can be used, for example, as flexographic printing units, as screen printing units, rotary die cutters, delaminators, laminators, dryers, Longitudinal cutting unit, train train etc. be executed. According to the invention, a respective machining module is fastened to the machine frame by means of a respective carrier module, a respective carrier module having two parallel longitudinal beams extending in the machine direction and two transverse beams arranged at right angles thereto and oriented parallel to one another and connecting the two longitudinal beams. The transverse bars may in particular have a circular cross-section. A respective processing module is carried by the transverse beams of at least one carrier module and the longitudinal beams in turn are supported by the machine frame. A respective carrier module can be oriented in horizontal, vertical or oblique position. The use of such a carrier module advantageously creates a neutral, flat interface between machine frame and processing modules, which allows a modular construction of the web printing press and a simple exchange of processing modules. It is also advantageous if the carrier module has a mirror-symmetrical structure and the two transverse beams and the two longitudinal beams are designed as identical parts. In order to use several processing modules in the web printing press, several, mounted on the machine frame support modules are provided.

In a first embodiment variant of the machining modules, these have on their underside recesses for placing the machining modules on the transverse bars of the carrier modules, wherein the recesses are designed to be complementary to the transverse bars. Complementary means here that the configuration of the recesses adapted to the cross-sectional profile of the spars and is such that spars and recesses can interlock. The positioning of a processing module in the web printing press is thus achieved in that a respective processing module is used with its recesses in the transverse bars of a carrier module. In particular printing units and stamping plants can be designed according to this first embodiment.

In one embodiment, machining modules may also be provided, which have recesses on their upper side for hooking the processing modules into the transverse struts of the carrier modules, whereby here too the recesses are complementary to the cross beams are executed. When such hanging stored processing modules are positioned in the web printing machine, an attachment of the processing modules to the carrier modules or the machine frame is required. This can be done by a snap, by screwing or by a differently executed lock. For example, dryers may have a structure according to this embodiment.

It is particularly advantageous if the recesses which correspond to a first spars have prismatic contact surfaces for a defined guidance and the recesses which correspond to the other spars allow some play. This avoids overdetermined storage of the processing modules.

In a particularly advantageous and therefore preferred development, a respective carrier module has a support system and is releasably secured to the machine frame by means of this support system. Alignable means that the carrier module can be adjusted and leveled relative to the machine frame. In particular, a carrier module may be attached by the support system to the upper bearing surfaces of two parallel side walls of the machine frame. The carrier module is therefore not part of the machine frame. In an advantageous embodiment, the support system has adjustable, self-locking leveling elements. In this case, four leveling elements can be provided in particular for each carrier module, wherein a leveling element is arranged in each corner of the carrier module. The use of such leveling elements is generally known in the field of mechanical and plant engineering. Suitable leveling elements are offered for example by the company Ganter Griff with the designation GN 355. They have a leveling screw, a cylinder screw with washer and a spherical disk, whereby a relative adjustment of the elements to each other and thus a positioning of the carrier module to the machine frame is possible. After the carrier modules are placed on the machine frame of the web printing machine, they can be positioned highly accurately by operating the leveling elements. This makes it possible that the machine frame itself can be made relatively inaccurate, since the required Accuracy in the alignment of the processing modules to each other by the positioning, alignment and leveling of the support systems takes place.

In a further development of the web printing machine according to the invention, a transversely displaceable positioning rail is mounted on the transverse bars of a carrier module for positioning a processing module perpendicular to the machine direction. As a result of a displacement of the positioning rail, the page register of a processing module can thus also be corrected during the execution of a job. In a particularly advantageous and therefore preferred embodiment, a spindle drive is provided for adjusting a respective positioning rail on each carrier module. The spindle drive may have a spindle mounted in one of the two longitudinal beams, a spindle nut connected to the positioning rail, and a hand-operated rotary knob or a controllable electric motor for rotating the spindle.

Furthermore, it is considered advantageous if the machine frame of the web printing machine has at least one bottom plate and two parallel side walls of the same height to which the carrier modules can be attached. Preferably, the bottom plate and the side walls are manufactured as a welded sheet metal frame construction. In this case, a modular structure of the web printing machine can be selected, that is, a plurality of units of base plate and side walls can be arranged in series with each other. Such a structure of the machine frame is particularly cost-effective and resource-saving.

The invention described and the described advantageous developments of the invention are also in combination with each other - as far as is technically feasible - advantageous developments of the invention.

With regard to further advantages and constructive and functional advantageous embodiments of the invention, reference is made to the dependent claims and the description of exemplary embodiments with reference to the accompanying figures.

embodiment

The invention will be explained in more detail with reference to attached figures. Corresponding elements and components are provided in the figures with the same reference numerals. In favor of a better clarity of the figures was waived a true to scale representation.

Fig. 1

ein Trägermodul in einer ersten Ausführungsvariante in einer 3D-Darstellung

Fig. 2a und b

je ein Trägermodul in anderen Ausführungsvarianten in einer Draufsicht

Fig. 3

das Ineinandergreifen von Querholmen und Ausnehmungen beim Einsetzen eines Bearbeitungsmoduls

Fig. 4

das Auflagesystem eines Trägermoduls in einer Detaildarstellung

Fig. 5a und b

die Lagerung von Bearbeitungsmodulen im Maschinengestell

Fig. 6

zwei beispielhafte Bearbeitungsmodule welche von je einem Trägermodul getragen werden

It show in a schematic representation

Fig. 1

a carrier module in a first embodiment in a 3D representation

Fig. 2a and b

depending on a carrier module in other embodiments in a plan view

Fig. 3

the intermeshing of transverse bars and recesses when inserting a processing module

Fig. 4

the support system of a carrier module in a detailed view

Fig. 5a and b

the storage of processing modules in the machine frame

Fig. 6

two exemplary processing modules which are each supported by a carrier module

FIG. 1 FIG. 10 shows a carrier module 10 that may be used to position processing modules 20 (not shown) on a machine frame 30 (not shown). The support module 10 has the following structure: It has two parallel aligned solid longitudinal beams 11. The longitudinal beams 11 are connected to each other at right angles to the longitudinal beams 11 transverse beams 12. The transverse bars 12 are aligned parallel to each other and may in particular have a circular cross-section, that is, be designed as round rods. A processing module 20 (not shown) can be placed on the cross bars 12 from above or hung from below. The longitudinal beams 11 of the carrier module 10 are not directly on the machine frame 30, but are connected via a support system 13 with leveling elements 14 to the machine frame 30. A like in FIG. 1 shown carrier module 10 can be used for the inclusion of train groups, slitters, Delaminiereinrichtungen, laminators, etc., that is, for processing modules 20, in which no page orientation is required.

If, however, a page orientation is required, that is, a position transverse to the machine direction M, so carrier modules 10 can be used as in the FIGS. 2a and 2b are shown. The carrier module 10 of FIG. 2a has the structure as described above. In addition, it has a transversely displaceable positioning rail 15, which can perform a sliding movement v along the transverse bars 12. The positioning rail 15 is mounted on the cross bars 12. The displacement movement is effected by a spindle drive 16, which has a spindle 17, a spindle nut 18 and an electric motor 19.2 for rotating the spindle 17. The transversely displaceable positioning rail 15 with its spindle drive 16 is arranged on the drive side, that is to say on the side of the web press 100 on which the drives are located, so that the accessibility of the processing modules is not impaired by the protrusion of the adjustment motor 19.2 from the carrier module 10.

This in FIG. 2b illustrated carrier module 10 represents an alternative embodiment: Instead of the adjustment 19.2 here manual operation by the machine operator is possible. For this purpose, the positioning rail 15 is arranged with its spindle drive 16 on the operating side, that is on the side of the web printing machine 100, which is easily accessible to the machine operator. The spindle drive 16 also has a rotatable spindle 17 and a spindle nut secured to the positioning rail 15. The rotation of the spindle 17 is effected by a hand-operated knob 19.1.

So that a machining module 20 located on the carrier module 10 can be positioned by a displacement movement v and an adjustment of the side register of the machining module 20 is made possible, a processing module 20 is fastened to the positioning rail 15. As it turned out FIG. 3 results in bores are provided in the longitudinal beam 11 and in the positioning rail 15, so that a screwing of a processing module 20 can be done with the positioning rail 15.

Out FIG. 3 It is also apparent how a processing module 20 can be positioned on the machine frame 30 using the carrier module 10. At the Bottom of each processing module 20 (not shown in detail) recesses 25 are provided. The recesses 25 are spaced and shaped so that they correspond to the crossbars 12 and transverse bars 12 and recesses 25 can engage each other. In other words, the recesses 25 are designed to be complementary to the bars 12. In the in FIG. 3 illustrated embodiment, the recesses 25 are placed in a support plate 23, wherein the support plate 23 may carry a processing module 20. The two recesses 25, which correspond to the left crossbar 12, have an approximately prismatic configuration. That is, there are contact surfaces provided, which cause a defined support of the support plate 23 on the left spars 12. The two recesses 25, which correspond to the right crossbar 12, have a different design. They have a horizontal bearing surface, by means of which the support plate 23 is stored defined on the spars 12. In the machine direction M, however, the two recesses 25 are made so large that there is some play between the crossbars 12 and the vertical surfaces of the recess. As a result, an overdetermined storage of the support plate 23 is avoided.

As an alternative to using a support plate 23 for supporting the machining modules 20, adapters 24 can also be screwed to the machining modules 20. In the adapters 24, the recesses 25 corresponding to the transverse bars 12 are then introduced, cf. FIG. 4 ,

In FIG. 4 Also, the support system 13 is shown in more detail, by means of which the support module 10 can be mounted on the side walls 31 of the machine frame 30. The support system 13 has four leveling elements 14, which are integrated in the four corners of the support module 10 in the two longitudinal beams 11. The position of the leveling elements 14 also results from the FIGS. 1 . 2a and 2b ,

A respective leveling element 13 may have at least one large, slotted threaded sleeve and an adjusting screw 14 for screwing to the machine frame 30 or 31. The threaded sleeve of the leveling element 13 has a lower support surface, which rests flush on a surface of the side wall 31. The adjustment or Leveling of the carrier module 10 is now done by the threaded sleeve is rotated. The external thread of the threaded sleeve thereby moves in a cut in the longitudinal beam 11 internal thread. After leveling the cylinder head screw is tightened to prevent further rotation of the threaded sleeve and the longitudinal beam 11 firmly screwed to the side wall 31.

From the FIGS. 5a and 5b the structure of the machine frame 30 becomes clear. The machine frame 30 of the web printing machine 100 may consist of a plurality of frame elements, as in the FIGS. 5a and 5b are shown. The frame elements can be connected to each other by means of coupling or connecting straps 34. A respective frame element consists of a welded sheet metal frame construction, which has two parallel side walls 31, which are mounted on a bottom plate 32. The bottom plate 32 has feet 33, by means of which the frame element can be roughly aligned. The sheet metal frame construction of the side walls 31 has upper bearing surfaces, which carry the carrier modules 10. On the support modules 10 machining modules 20 can be used from above. Additionally or alternatively, other processing modules 20, for example, multi-roller dryer 26, are suspended from below in the carrier modules 10. This results in a suspended support of the processing modules 26. If the introduced from below machining modules 26 with their recesses 25 do not engage in the cross bars 12, a screwing of the processing modules 26 may be required with the carrier modules 10.

In FIG. 6 By way of example, a flexographic printing unit 21 and a rotary punching unit 22 of a web press 100 are shown, which serve to machine a substrate web 1000 transported in the machine direction M. The processing modules 21, 22 are arranged using carrier modules 10 on the machine frame 30, not shown.

LIST OF REFERENCE NUMBERS

10

carrier module

11

stringers

12

crossbars

13

support system

14

leveling

15

positioning rail

16

spindle drive

17

spindle

18

spindle nut

19.1

knob

19.2

electric motor

20

processing module

21

flexo

22

Rotary punching

23

Support plate processing module

24

adapter

25

recess

26

dryer

30

machine frame

31

Side wall

32

baseplate

33

foot

34

Coupling / connecting strap

100

Web printing machine

1000

substrate web

M

Machine direction

v

displacement movement

Claims (11)

Web printing machine (100) for printing on a substrate web (1000), wherein the substrate web (1000) is transported in a machine direction (M) through the web press (100) and thereby processed, with a machine frame (30) and several processing modules (20) mounted thereon , characterized
that a respective processing module (20) by means of one carrier module (10) is mounted on the machine frame (30), and that a respective carrier module (10) has two parallel, located in the machine running direction (M) extending longitudinal beam (11) and two perpendicular thereto are arranged, parallel to each other and the two longitudinal beams (11) interconnecting transverse beams (12), wherein a respective processing module (20) of the transverse beams (12) of at least one support module (10) is supported and
wherein the longitudinal beams (11) are carried by the machine frame (30). Web printing machine according to claim 1,
characterized,
in that the processing modules (21, 22) have recesses (25) on their underside for placement on the transverse bars (12) of the carrier modules (10), wherein the recesses (25) are made complementary to the transverse bars (12). Web printing machine according to claim 1,
characterized,
in that the processing modules (26) have recesses (25) on their upper side for being hooked into the transverse bars (12) of the carrier modules (10), wherein the recesses (25) are designed to be complementary to the transverse bars (12). Web printing machine according to one of the preceding claims,
characterized,
that a respective support module (10) by means of a support system (13) is mounted aligned on the machine frame (30). Web printing machine according to claim 4,
characterized,
that the support system (13) adjustable, self-locking leveling elements (14). Web printing machine according to one of the preceding claims,
characterized,
in that a transversely displaceable positioning rail (15) is mounted on the transverse struts (12) of a carrier module (10) for positioning a processing module (20), or
in that a transversely displaceable positioning rail (15) is mounted on a transverse rail stub (12 ') mounted on the longitudinal beams (11) parallel to the transverse beams (12) for positioning a machining module (20). Web printing machine according to claim 6,
characterized,
in that a spindle drive (16) is provided for adjusting a respective positioning rail (15) on the carrier modules (10). Web printing machine according to claim 7,
characterized,
in that the spindle drive (16) has a spindle (17), a spindle nut (18) and a hand-operated rotary knob (19.1) or a controllable electric motor (19.2). Web printing machine according to one of the preceding claims,
characterized,
comprising that the machine frame (30) at least one bottom plate (32) and two parallel side walls of the same (31) height. Web printing machine according to claim 9,
characterized,
that the bottom plate (32) and the side walls (31) are manufactured as a welded sheet metal frame construction. Web printing machine (100) for printing on a substrate web (1000), wherein the substrate web (1000) is transported in a machine direction (M) through the web press (100) and thereby processed, with a machine frame (30) and several processing modules (20) mounted thereon , characterized
that a respective processing module (20) by means of one carrier module (10) is mounted on the machine frame (30), and that a respective carrier module (10) has two parallel, located in the machine running direction (M) extending longitudinal beam (11) and two perpendicular thereto are arranged, having parallel to each other and the two longitudinal beams (11) interconnecting transverse beams (12) and parallel to the transverse bars (12) on the longitudinal beams (11) mounted transverse spar stub (12 '),
in that the processing modules (26) have recesses (25) on their upper side for being hooked into the transverse spar stubs (12 ') of the carrier modules (10), wherein the recesses (25) are designed to be complementary to the transverse spar stubs (12'),
wherein a respective processing module (20) is supported by the crossbar stubs (12 ') of at least one carrier module (10) and
wherein the longitudinal beams (11) are carried by the machine frame (30).

Images