Web-fed printing machine including processing modules and carrier modules

Abstract

A web-fed printing machine that is highly variable in terms of its configuration, provides a high degree of positioning accuracy of processing modules and has a cost-efficient machine frame, includes a plurality of the processing modules fixed to the machine frame. Each respective processing module is advantageously fixed to the machine frame by a respective carrier module. Every carrier module includes two parallel longitudinal beams extending in the machine direction and two parallel crossbars which are oriented at right angles to the longitudinal beams and which interconnect the two longitudinal beams.

Claims

1. A web-fed printing machine for printing on a substrate web being transported through the web-fed printing machine in a machine direction and processed, the machine comprising: a machine frame; a plurality of processing modules; carrier modules each fixing a respective one of said processing modules to said machine frame; each of said carrier modules including two mutually parallel longitudinal beams extending in the machine direction and two mutually parallel crossbars oriented at right angles to said longitudinal beams, said two crossbars interconnecting said two longitudinal beams; each respective one of said processing modules being supported by said crossbars of at least one of said carrier modules; said processing modules having upper surfaces and cutouts formed in said upper surfaces for being hooked into crossbar stubs of said carrier modules, said cutouts being complementary to said crossbar stubs; and said longitudinal beams being supported by said machine frame.

2. The web-fed printing machine according to claim 1, which further comprises a support system, each of said carrier modules being fixed to said machine frame and configured to be leveled by said support system.

3. The web-fed printing machine according to claim 2, wherein said support system has adjustable self-locking leveling elements.

4. The web-fed printing machine according to claim 1, wherein said machine frame includes at least a base plate and two parallel side walls of identical height.

5. The web-fed printing machine according to claim 4, wherein said base plate and said side plates form a welded sheet-metal structure.

6. A web-fed printing machine for printing on a substrate web being transported through the web-fed printing machine in a machine direction and processed, the machine comprising: a machine frame; a plurality of processing modules; carrier modules each fixing a respective one of said processing modules to said machine frame; each of said carrier modules including two mutually parallel longitudinal beams extending in the machine direction and two mutually parallel crossbars oriented at right angles to said longitudinal beams, said two crossbars interconnecting said two longitudinal beams; each respective one of said processing modules being supported by said crossbars of at least one of said carrier modules; said longitudinal beams being supported by said machine frame; a positioning rail supported on said crossbars of one of said carrier modules, said positioning rail being movable in a transverse direction in order to position a respective one of said processing modules.

7. The web-fed printing machine according to claim 6, which further comprises spindle drives each being provided on a respective one of said carrier modules for adjusting a positioning rail.

8. The web-fed printing machine according to claim 7, wherein each of said spindle drives includes a spindle, a spindle nut, and a manually operated knob or a controllable electric motor.

9. A web-fed printing machine for printing on a substrate web being transported through the web-fed printing machine in a machine direction and processed, the machine comprising: a machine frame; a plurality of processing modules; carrier modules each fixing a respective one of said processing modules to said machine frame; each of said carrier modules including two mutually parallel longitudinal beams extending in the machine direction and two mutually parallel crossbars oriented at right angles to said longitudinal beams, said two crossbars interconnecting said two longitudinal beams; each respective one of said processing modules being supported by said crossbars of at least one of said carrier modules; said longitudinal beams being supported by said machine frame; crossbar stubs being disposed on said longitudinal beams and being parallel to said crossbars; and a positioning rail being supported on said stubs, said positioning rail being movable in a transverse direction in order to position a respective one of said processing modules.

10. The web-fed printing machine according to claim 9, which further comprises spindle drives each being provided on a respective one of said carrier modules for adjusting a positioning rail.

11. The web-fed printing machine according to claim 10, wherein each of said spindle drives includes a spindle, a spindle nut, and a manually operated knob or a controllable electric motor.

12. A web-fed printing machine for printing on a substrate web being transported through the web-fed printing machine in a machine direction and processed, the machine comprising: a machine frame; a plurality of processing modules; carrier modules each fixing a respective one of said processing modules to said machine frame, each of said carrier modules including two mutually parallel longitudinal beams extending in the machine direction, two mutually parallel crossbars oriented at right angles to said longitudinal beams and interconnecting said longitudinal beams, and crossbeam stubs fixed to said longitudinal beams in a direction parallel to said crossbars; said processing modules having surfaces and cutouts formed in said surfaces for being hooked into said crossbeam stubs of said carrier modules, said cutouts being complementary to said crossbars; each respective processing module being supported by said crossbeam stubs of at least one of said carrier modules; and said longitudinal beams being supported by said machine frame.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

(1) FIGS. 1A and 1B are diagrammatic, perspective views of a first embodiment of a carrier module;

(2) FIGS. 2A and 2B are top-plan views and FIGS. 2C and 2D are perspective views of different embodiments of a carrier module;

(3) FIG. 3 is an exploded, perspective view illustrating an engagement between crossbars and cutouts as a processing module is inserted;

(4) FIG. 4 is a fragmentary, perspective view of a support system of a carrier module;

(5) FIGS. 5A and 5B are elevational views illustrating how the processing modules are supported in the machine frame; and

(6) FIG. 6 is a perspective view illustrating two examples of processing modules that are each carried by a respective carrier module.

DETAILED DESCRIPTION OF THE INVENTION

(7) Referring now to the figures of the drawings in detail and first, particularly, to FIGS. 1A and 1B thereof, there is seen a carrier module 10 that may be used to position (non-illustrated) processing modules 20 on a (non-illustrated) machine frame 30. The carrier module 10 is constructed as follows: it has two massive or solid longitudinal beams 11 disposed to be parallel to one another. The longitudinal beams 11 are interconnected by crossbars 12 disposed at right angles to the longitudinal beams 11. The crossbars 12 are disposed to be parallel to one another and may in particular have a circular cross-section, i.e. they may be round bars. A (non-illustrated) processing module 20 may be placed on the crossbars 12 from above or hooked into the crossbars 12 from below. The longitudinal beams 11 of the carrier module 10 do not directly rest on the machine frame 30 but are connected to the machine frame 30 by a support system 13 including leveling elements 14. A carrier module 10 constructed as shown in FIGS. 1A and 1B may be used to receive pulling devices, longitudinal cutting devices, delaminating devices, laminating devices etc., i.e. processing modules 20 that do not require lateral alignment.

(8) However, if lateral alignment is required, i.e. accurate positioning in a direction perpendicular to the machine direction M (see FIGS. 3, 5A and 6), carrier modules 10 constructed in accordance with the illustration of FIGS. 2A and 2B may be used. The carrier module 10 shown in FIG. 2A is constructed as described above. In addition, it has a positioning rail 15 that is movable in a transverse direction, i.e. it is capable of carrying out a displacing movement v along the crossbars 12. The positioning rail 15 is supported on the crossbars 12. The displacing movement v is achieved by a spindle drive 16, which includes a spindle 17, a spindle nut 18, and an electric motor 19.2 for rotating the spindle 17. The positioning rail 15, which is movable in a transverse direction, with the spindle drive 16 thereof, are disposed on the drive side, i.e. on that side of the web-fed printing machine 100 (see FIGS. 5A, 5B and 6) on which the drives are located, to avoid affecting access to the processing modules due to the fact that the adjustment motor 19.2 protrudes from the carrier module 10.

(9) The carrier module 10 illustrated in FIG. 2B represents an alternative embodiment: it includes a device for manual operation by a machine operator instead of the adjustment motor 19.2. For this purpose, the positioning rail 15, with the spindle drive 16 thereof, are disposed on the operator side, i.e. on that side of the web-fed printing machine 100 that is easily accessible to the machine operator. The spindle drive 16 likewise includes a rotary spindle 17 and a spindle nut 18 fixed to the positioning rail 15. The rotation of the spindle 17 is caused by a manually operated rotary knob 19.1.

(10) FIGS. 2C and 2D show an embodiment of the invention in which both an adjustment motor 19.2 and a rotary knob 19.1 are provided at opposite ends of the crossbars 12. In addition, it is seen that the carrier modules 10 include crossbar stubs 12 fixed to the longitudinal beams 11 in a direction parallel to the crossbars 12. The processing modules 26 shown in FIG. 2D have upper surfaces and cutouts 25 formed in the upper surfaces for being hooked into the crossbar stubs 12 of the carrier modules 10. The cutouts 25 are complementary to the crossbar stubs 12 and each respective processing module 20 is supported by the crossbar stubs 12 of at least one of the carrier modules 10.

(11) A processing module 20 is fixed to the positioning rail 15 in order to be able to implement a displacing movement v to position a processing module 20 located on the carrier module 10 and in order to allow an adjustment of the lateral register of the processing module 20. As shown in FIG. 3, boreholes are provided in the longitudinal bar 11 and in the positioning rail 15 to allow a processing tool 20 and the positioning rail 15 to be screwed together.

(12) FIG. 3 further shows how a processing module 20 may be positioned on the machine frame 30 by using the carrier module 10. Cutouts 25 (only two of which are shown) are provided on the underside of every processing module 20. The cutouts 25 are spaced apart from one another and shaped in such a way as to correspond with the crossbars 12 and to allow the crossbars 12 and cutouts 25 to engage with one another. In other words, the cutouts 25 and the crossbars 12 are constructed to complement one another. In the embodiment shown in FIG. 3, the cutouts 25 are formed in a carrier plate 23 and the carrier plate 23 may carry a processing module 20. The two cutouts 25 that correspond with the left-hand crossbars 12 have an approximately prismatic shape. This is to say that contacting surfaces are provided that ensure a defined support of the carrier plate 23 on the left-hand crossbar 12 in a defined way. The two cutouts 25 that correspond with the right-hand crossbars 12 have a different construction. They include a horizontal contact surface for supporting the carrier plate 23 on the crossbars 12 in a defined way. However, in the machine direction M, the two cutouts 25 are large enough to allow a certain amount of play between the crossbars 12 and the vertical surfaces of the cutout. This avoids an over-determinate supporting of the carrier plate 23.

(13) As an alternative shown in FIG. 4, adapters 24 may be screwed to the processing modules 20 instead of using a carrier plate 23 to support the processing modules 20. In this case, the cutouts 25 corresponding with the crossbars 12 are formed in the adapters 24.

(14) FIG. 4 also includes a more detailed representation of the support system 13 for fixing the carrier module 10 to the side walls 31 of the machine frame 30. For this purpose, the support system 13 has four leveling elements 14, which are integrated into the two longitudinal beams 11 at the four corners of the carrier module 10. The position of the leveling elements 14 will become apparent from FIGS. 1, 2A, and 2B.

(15) A respective leveling element 14 may include a minimum of a large slotted threaded sleeve and an adjustment screw to form a screw connection with the machine frame 30 or the side wall 31 thereof. The threaded sleeve of the leveling element 14 includes a lower contact surface that contacts a surface of the side wall 31 so as to be flush therewith. An adjustment or leveling of the carrier module 10 is achieved by rotating the threaded sleeve. In this process, the outer thread of the threaded sleeve moves in an interior thread cut into the longitudinal beam 11. Once the leveling process is completed, the cylinder screw is tightened to prevent the threaded sleeve from rotating any further and to firmly screw the longitudinal beam 11 and the side wall 31 together.

(16) FIGS. 5A and 5B illustrate the construction of the machine frame. The machine frame 30 of the web-fed printing machine 100 may be formed of a plurality of frame elements as shown in FIGS. 5A and 5B. The frame elements may be interconnected by coupling rods or connecting links 34. A respective frame element is formed of a welded sheet-metal frame construction having two parallel side walls 31 mounted to a base plate 32. The base plate 32 has legs 33 for a coarse alignment of the frame element. The sheet-metal frame construction of the side walls 31 has upper contact surfaces for supporting the carrier modules 10. Processing modules 20 may be placed on the carrier modules 10 from above. In addition or alternatively, other processing modules 20 may be hooked into the carrier modules 10 from below, for instance processing modules 26 in the form of driers that include a plurality of rollers, resulting in a suspended configuration of the processing modules 26. If the processing modules 26 that have been introduced from below do not snap onto the crossbars 12, it may be necessary to provide a screw connection between the processing modules 26 and the carrier modules 10.

(17) By way of example, FIG. 6 illustrates a flexographic printing unit 21 and a rotary diecutting unit 22 in a web-fed printing machine 100 for processing a substrate web 1000 that is transported in the machine direction M. The processing modules 21, 22 are disposed on the non-illustrated machine frame 30 by using carrier modules 10, which have positioning rails 15.