FI89025C - SYSTEM FOER INSTAELLNING AV DRIFTSPARAMETRARNA VID EN ROTATIONSTRYCKMASKIN - Google Patents

Description

1 89025

Rotary printing machine operating parameter setting system. -System for installation of drift parameters within a rotation tester

The invention relates to a system for setting the operating parameters of a type of rotary printing machine as set out in the preamble of claim 1.

With such a system, all relevant operating parameters and quality control functions can be set, in particular color control, color alignment, web alignment, and auxiliary functions.

It is known to use a computer for adjusting a printing machine, for example from DE 29 22 964, which discloses a printing press. . a machine preparation and control system operating with a color processor, a control processor, a humidification plant processor and a repair processor. These processors provide control signals for color control, water control, web control, and some corrections.

Rotary press operating parameter setting systems of the type are available from Maschinenfabrik WIFAG, Bern, Switzerland under the designation "WIFAG MARS" and from BBC AG, Baden, Switzerland under the designation "MPS 2". In this case, the institutions of the quality control functions are integrated throughout the overall control of the rotary printing press into a subset of the system. This system consists of a set of separate memory-controlled control circuits which form a completely independent subset of hardware and software in the control unit belonging to the weight unit.

In this known system, a control panel is provided for inputting the respective setpoints, as well as control and / or adjustment devices for the actuators of the separate operating parameters for the weight units, the folding devices and for some auxiliary machines; these 2 89025 control and / or regulation devices usually consist of memory-controlled computers.

Thus, for example, a memory-controlled computer is provided for each printing unit, which centrally supplies control signals to this printing unit via cables to actuators which convert the quality control functions at a corresponding point in the rotary printing machine into a corresponding mechanical setting. This is because, on the one hand, each computer must have a large number of digital or analog connections available, and, on the other hand, the cabling costs are very high.

Due to the varying lengths of the signal lines, a length adjustment with analog inputs is also required. Also in terms of hardware, the load on this system is very high.

Also in software terms, such a system places great demands, as in addition to monitoring data and status information, ex-post adjustments are made by separate institutions.

The weight unit consists of several mechanical structural groups, which in themselves fulfill the limited functions. However, when each weighing unit has a central memory programmable control, these weighing units must be fully installed and the entire setting system must be completely ready for use before separate components can be commissioned and their functions can be tested. Thus, the settings and calibration of the separate functions of the different structural groups of the printing unit of such a rotary printing press can only be performed in a fully installed plant. However, this means that the commissioning of such a printing unit is very expensive and that, in principle, it can only be carried out at the customer's premises when the entire rotary printing machine has been pre-installed.

Similar problems occur when an existing rotary printing press needs to be expanded, for example with an additional printing unit. This additional construction of the weight units does not mechanically cause 3 69025 problems. However, since the quality control functions must also be guaranteed with this additional weight unit, the corresponding actuators / actuators of this weight unit must be connected to the respective central computer. The associated cabling cost is very high, so it must also be taken into account that the work in question must be carried out on a machine that is already installed and often still running.

In addition, limits in terms of capacity and connections will soon be reached, with space problems. In this case, too, the separate functions of the expansion weight unit can only be commissioned and tested after the installation systems have been completely installed. This also means that the expansion of an existing rotary printing press requires a lot of time, and that possibly the rotary printing press or at least some printing units have to be stopped for such a long time that the corresponding work has been completely completed.

The object of the invention is thus to provide a system by which the operating parameters of said type of rotary printing machine are set, by means of which the installation, commissioning, testing and calibration of separate structural groups performing independent quality control functions is possible regardless of the control and plant as a whole.

This object is solved according to the invention by the features set forth in the characterizing part of claim 1.

Appropriate embodiments are defined by the features of the dependent claims.

Because the advantages achieved by the invention depend on all mechanically independent assemblies having to implement quality control functions be provided with the necessary control components for the settings, which enable the entire rotary printing machine to be commissioned independently. These assemblies do not even have to be installed on the entire machine, but can only be pre-installed and then adapted to the plant. This results in a substantial reduction in the final installation time, as the control systems of the individual components can be installed, tested and calibrated already outside the rotary press.

Due to the clear delimitation of the setting systems corresponding to the separate structural groups, the cabling and in particular the lengths of the separate cables can also be optimized for shorter strokes.

Until now, most printing machine manufacturers have obtained the necessary guidance from specialist suppliers, which the current customer, i.e. the printing house, has shown. The problem here is that each control provider uses its own memory-controlled controls, which have their own hardware and a specific programming language, i.e. a specific solution has to be made for each type of machine and each control provider. In particular, the measuring and actuators connected to the actual fitting points of the machinery must be adapted to the control functions of the control to be installed several times, even though the functions have the same function.

This is no longer necessary because each primary station has at least one interface for two-way, serial, asynchronous data exchange, which is supported by most different controller manufacturers; in this case, each primary station can be connected to virtually any overall control station. The primary station converts the drive setpoints obtained from the control into effective setpoints or, conversely, it can also provide effective actual values and convert them into actual control values that can be displayed on the control panel.

These interfaces can be used to connect "machine-specific components", in particular actuators and actuators, to control devices of any manufacturer, so that the conventional and expensive adaptation to the various systems on the market to date is eliminated.

According to a preferred embodiment, each primary station is associated with a secondary station acting as a kind of "buffer" with a connection to the control and calibration of control-independent machine-specific parts, so that the expansion of an existing rotary printing press can also be carried out without the need for long downtimes. All the assemblies to be added are "preset" and put into operation before they are placed on an existing printing press, and the maintenance work to be carried out can also be carried out very rationally.

These advantages are also achieved by converting an already existing rotary printing press to a higher degree of automation, since the devices for response signals are arranged in machine-specific parts and can thus be seamlessly connected to an already existing control.

This modular design also makes it possible to achieve standardization in quality control functions, ie machine-specific parts, namely measuring and actuators and actuator actuators can be connected to a rotary press according to the standard, these machine-specific parts can be connected to any control system on the market. . It is even possible to standardize the actual machine-specific parts independently of the machine type, giving even greater flexibility in building the system from the various modules available on the market.

In the following, an embodiment of the invention will be explained in more detail with the aid of a drawing.

In the drawing are: 6 89025

Figure 1 Alignment system in block diagram;

Figure 2 Schematically of the state arrangement of an alignment system in a rotary printing press;

Figure 3 Schematic of the state arrangement of the alignment system in the weight tower;

Figure 4 Schematic of the distribution of application transducers in a t-lamean printing machine;

Figure 5 is a diagram of the data flow of the rotary printing apparatus according to Figure 2; and

Figure 6 Schematically showing the conversion of control values into rms values and vice versa.

The alignment system 1 shown in Figure 1 consists of a primary station 3 bi-directionally connected to the upper level control 2 via a serial, asynchronous data line 6. Up to 254 secondary stations 4 can be connected to the primary station 3. Each secondary station 4 can have more than 30 application converters 5. The primary station 3 is connected to the secondary station 4 by a serial, first internal distribution network 7. The serial, second internal distribution network Θ has a respective secondary station 4 connected to the application converters 5.

The rotary printing plant shown in Fig. 2 consists of printing towers 30. Each printing tower 30 consists of a printing unit 31 with four printing machines 16 and a color unit 32, which in turn consists of a printing unit 31 with two printing machines 16. The rotary printing plant also includes a folding device 29 and a superstructure 28. in particular for guiding the web, tightening the web and adjusting the alignment of the web. The rotary printing plant is equipped with a known central control 11, a known control panel 13 and a peripheral device 12 (computer or service device).

, 89025

Each printing tower 30 and folding device 29 has, as an integral part, an alignment system 1 with its primary position 3. Each printing unit 31 and each printing machine 16 has a built-in secondary station 4.

In addition to the secondary station 4 arranged in the folding device, the alignment system 1 of the folding device 29 also includes a secondary station 4 mounted on the superstructure 28 and auxiliary drives.

The distribution of the alignment system 1 in the rotary printing plant as mentioned and the placement of the secondary stations 4 in each structural group allow separate operation testing and calibration of the quality control institutions without connecting the printing tower and folding device to the central control 11 or higher level control 2. The secondary stations 4 also have an interface . Such functional testing and calibration of quality control bodies can thus be performed before the separate, pre-assembled assemblies are installed together as a complete plant, and before they are connected to the central control 11 or the higher level control 2.

In this way, a great deal of flexibility is also created for the weight towers 30 and the whole plant for retrofitting.

The primary stations 3 integrated in the weight towers 30 and the folding device 29 are connected to the central control 11 by a serial second connecting line 10. The quality control functions are thus derived as control setpoints from the control panel 13 connected to the central control 11 by a second connection 15 to the control towers 30. or to the folding devices 29. These control setpoints are first passed to the upper level control 2, from where they are passed to the primary position 3 of the alignment system 1. Here they are converted into the effective setpoints required by the secondary stations.

β 89025

The primary station 3 is connected to the peripheral device 12 via the first connecting line 9. The peripheral device 12 can be, for example, a computer or a service device.

If the peripheral device 12 is a maintenance device, maintenance work or post-calibration of the alignment system 1 can be performed via the first connecting line 9.

If the peripheral device 12 is a computer, it is connected on the first connection 14 to a central control 11 which acts to give and send back control setpoints, thus enabling the positions of the quality control institutions to be preset or stored in memory.

Fig. 3 shows the printing tower 30 of the rotary printing plant according to Fig. 2. The secondary stations 4 connected to the primary stations via the first internal distribution network 7, each integrated in the respective structural groups of the printing towers 30, are connected to the application converters 5 via the second internal distribution network 8.

Each printing machine information 16, as shown in Fig. 4, has a secondary station 4. The printing machine 16 has a color machine 17 and a dampening machine 18. Both the color machine 17 and the humidifying machine 18 are fitted with application converters 5 connected to the secondary station 4 via the second internal distribution network 8. the application converter 5 comprises a plurality of connection points to which the post-adjustment circuits 20 can be connected by means of the actual value feedback 21 of the actuator and the actuator control 22.

The data flow diagram, in Figure 5, shows that the control setpoints 23 can be derived from the peripheral 12 (computer or service device) via the first connection 14 or the control panel 13 via the second connection 15 to the central control 11 of the rotary press. 10 to the corresponding upper level control 2, which in turn transmits them via the data connection 6 to the primary station 3 of the alignment system 1. The control values 23 of the primary station I are converted in the conversion section 19 into effective setpoints 24 specific to the monitoring control circuit (Fig. 6). These effective setpoints 24 are fed to the respective secondary stations 4 and further from them via the second internal distribution network 8 to the respective application converters 5, from which the effective setpoints 24 are fed to the corresponding monitoring control circuit 20.

The effective setpoint 24 and the actual actual value of the respective monitoring control circuit 20 can be returned along the same route described above in the conversion section 19 of the primary station 3 to the control setpoint 23 or the actual control value to the control panel 13 or peripheral 12 (computer or service device).

Fig. 6 schematically shows the conversion of the control setpoint 23 to the effective setpoint 24. The conversion of the values of the respective monitoring control circuit 20 in the conversion section 19 of the primary station 3 depends on the conversion mode 25, the conversion parameters 26 and the calibration parameters 27. 27 is kept in the memory of the primary station 3. These values can be downloaded or read along the first connection line 9 from the peripheral device 12 (computer).

The communication software module of the primary station 3 of the targeting system 1, which supports communication to the higher-level control 2, can simply be adapted to the communication protocol required by the respective upper-level control 2.

The instruction set for communication between the targeting system 1 and the upper level control 2 always remains the same and is subject to the communication protocol.

Claims (3)

1. A control device for applying and controlling the process quantities of a rotary printing machine, the device having a. value sensors and operating motors (22); the operating motors, depending on the result of a comparison of setpoints and actual values, characterized by the following characteristics: c. a genera a bit-serial, asynchronous, bi-directional data connection united parent control (2, 11); d. each primary control station (3) has at least one interface for connecting an external peripheral (12) to perform independent application, calibration and experimental operation of the process unit (28, 29, 30) by the controller (2, 11); e. the primary control station (3) converts the user setpoints (23) given by the control (11) or the switchable peripheral (12) into effective setpoints (24) and outputs them to the application converter (5) for controlling the operating motor (22) in each case ); f. each application converter (5) conveys the effective actual values to the primary control station (3), which converts them into user setpoints for delivery further to the control (2, 11) or to the switchable peripheral equipment (12). 13 89025 Control device according to claim 1, characterized in that a secondary control station (4) is integrated between each primary control station (3) and an associated attachment transformer (5) integrated in the construction group of the process unit (28, 29, 30), that the connection between the primary control station (3) and the secondary control station (4) and the secondary control station (4) and the application converters (5) are formed by means of a serial bus line, and the secondary control stations (4) are provided with a connection for switching on the external peripheral equipment (12) for carrying out application. , calibration and experimental operation. Control device according to Claim 1 or 2, characterized in that the parameters (26) for converting the user setpoints into effective setpoints and for converting the effective setpoints into user-setpoints as well as the calibration parameters (27) are permanently stored in the memory. in the primary control stations (3).