JPH08498U - Printer - Google Patents

Abstract

A printing machine (1) with at least one printing unit (4-7) is proposed in which there are a multiplicity of sensors for monitoring the printing operation and a multiplicity of actuators for the adjustment of, for example, the ink profile, the moisture profile, the paper guidance and the like. The complete processing of the sensor signals, their integration and the output of adjustment signals as well as of display signals takes place in a comprehensive electronic control unit (11), which is connected by data leads (21, 22) with the printing machine or with the sensors and the actuators in the printing machine (1). The comprehensive electronic control unit (11) is, furthermore, connected to measuring instruments, for example a printing plate reader (12) or a quality inspection facility (13), and the measurement signals for adjustment of the printing machine are correspondingly processed. The monitoring of the printing operation and, possibly, necessary interventions in the control of the printing machine take place via a control panel (15), which is connected to the comprehensive electronic control unit (11) by means of a data lead (26). The printing machine itself does not include any additional electronic or electrical control devices apart from the sensors and actuators other than the display indicators necessary for the monitoring of the printing operation on the machine, or operating facilities. <IMAGE>

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention provides several measuring devices, sensors for generating electrical signals, electrically controllable adjustment members, and at least one control / monitor console for monitoring, controlling and adjusting the unit and the overall print flow. And a printing machine having at least one printing unit.

[0002]

[Prior art]

 A printing machine in which several ink supply metering elements arranged over the printing width are provided as adjusting members which can be adjusted by an adjusting device is known from German patent application DE 272 8738. The density of the ink produced on the printed sheet is scanned by an appropriate sensor, and the adjustment state of the ink supply metering element is corrected after the comparison between the target value and the actual value.

A method for displaying the adjustment amount in a printing machine is also known from West German Patent Application Publication No. 2830 085, according to which a printing machine is provided for the transfer metering of ink and / or fountain solution. The adjustment member for each zone is provided, and the adjustment amount is converted into a display signal by the sensor element, so that the adjusted ink profile can be displayed.

[0004]

[Problems to be solved by the device]

 It is known that printing presses, for example sheet-fed offset presses, also have several sensors, for example for monitoring the flow of paper or the feeding / discharging or supply of dampening water. In addition, it also has some adjusting elements, eg for register adjustment. In addition, control devices for the main drive mechanism and auxiliary drive mechanism are required. In these known examples, it is disadvantageous that the various electronic control units are distributed, that is to say distributed over the printing machine. Each of these devices requires at least one energy supply, and has a signal processing function (intelligent) with limited processing power.

Furthermore, it is a disadvantage that the data processed in the individual electronic units cannot be manipulated directly and can only be exchanged with one another or in bulk only at a high cost of the data lines. In addition, the relatively long data lines slow the data exchange rate and are more susceptible to disturbances. And, again, checking these individual electronic units is time consuming.

An object of the present invention is to manage signals of all sensors, adjustment signals, and control signals in a lump so that they can be directly operated, and thus the data processing speed is fast and the printer is not affected by disturbance. To provide.

[0007]

[Means for Solving the Problems]

 The printing press of the present invention has a sensor, an adjusting member or a signal line or a power line for a signal sent by the unit from a measuring device, a sensor, an adjusting member, a unit and a control / monitor table provided in the printing press. Directly connected to a data processing / control device provided outside the printing machine, which data processing / control device also supplies the drive energy for the main and auxiliary drive devices to the printing machine for signal processing and power control. Controls using control signals from measuring devices, sensors, adjusting members, units and control / monitor consoles attached to the printing machine, configured as an integrated electronic device consisting of electronic devices and finished by a data processing / control device -The feature is that the adjustment and signal input / output are performed by the data processing control device.

[0008]

[Embodiment of device]

 An advantage of the present invention is that the signals of all sensors are processed comprehensively and the adjustment signals are also coordinated by a data processing / control device, which is also referred to as integrated electronic device hereinafter. In other words, functions such as paper feed, paper feed / discharge, ink supply and dampening water supply, ink drying, and powder spraying are controlled and displayed. The speed of the printing machine, the ink and water coating on the plate cylinder, the quality of the registration, the state of the measuring instrument functioning or not, the current amount of auxiliary materials, etc. The condition can be evaluated by bulk monitoring as an indication of whether the printing process is working correctly. Furthermore, all data of the printing press can be centrally operated / called. Furthermore, as is well known, the entire control of the printing press, which is conventionally performed by control for protection and has a small degree of mutual linking, is now controlled by the large degree of mutual linking under various operating conditions. It will be carried out by comprehensive control that enables optimization of the process. By shortening the data transmission path, the data processing speed is increased, and at the same time, the safety against disturbance is also increased.

The overall device as described above comprises, for example, under the control of at least one main computer, several individual computers which process the data provided by the printing machine and generate control signals. Such systems are also known by the concept of multiprocessor systems. One advantage of this system is that the data transmission path between the individual processors can be very short, which ensures a high degree of disturbance safety. That is, all of the data exchange can be done in a single unit, eliminating unnecessary long data lines. Known systems generally have a plurality of distributed process control systems interconnected by a communication unit or a host central computer. This system has the disadvantage that it has to use extremely long data transmission paths, which, as is known, carries the risk of being affected by disturbances. Furthermore, when such a system is applied to a printing press, the effects of additional disturbances such as vibrations and temperature changes should also be considered, and again, the maintenance of several individual systems is substantially expensive. It will be

Another advantage of a multi-processor system is that when one processor fails, the entire system is not blocked, and the other processor takes over the function of the failed processor, thus operating the press. There is no need for interruption.

If integrated electronic devices are used, not only the functions of the printing press, but also the functions of additional devices such as, for example, a paper feed / output unit, a drying device, and the like are included in the process control. It can be imported without any problems.

It is expedient to house the integrated electronics in one control cabinet. Such a centralized arrangement is not only convenient for the driver, but has the advantage that only one voltage supply and cooling device is required. Furthermore, by using this device, all data relevant to the driver, including the data necessary for print optimization, can be displayed to the driver quickly.

Yet another advantage of the present invention is that a data processing / control device as an integrated electronic device is universally made, that is, a printing machine having different sizes and structural types can be controlled thereby. Become.

Since the data processing / control device is arranged away from the printing machine, it is necessary in the past depending on the structure therefor that the individual control units are fitted to various component parts of the printing machine. It can be avoided.

In one developed embodiment of the invention, the data processing / control unit is divided into two units, the first unit containing all that is needed for ink transfer management such as ink supply and registration. Data is processed, while the other unit processes the rest of the data. The advantage of doing this is that it makes it possible to control the transfer of ink between the printed product and a given reference given, for example, on a sample sheet, where the target and actual comparison can take place. Is to be.

Further, by appropriately configuring the data processing / controlling device, one developed embodiment of the present invention can be realized as follows. That is, one main computer (may be several main computers working in a combined system) is connected to individual computers (multiple) by a shared data bus. Each of these individual computers is responsible for controlling or monitoring particular functions or conditions of the printing press. Under certain circumstances, it is entirely possible for one computer to assume the role of another computer.

In one advantageous embodiment of the invention, set-up parameters in the run-up are external, such as the ink profile obtained, the paper thickness, the number of copies and the press preconditioning data. In order to input from a certain input unit, the data line for external connection is to be connected to the data processing / control device. Furthermore, since all the data can be manipulated in this device, the data, i.e. the diagnostic data, can be transferred to this external data line, for example by means of fault diagnostic equipment connections or telephone communication diagnostic means. Can be called from the device.

In one refinement of the invention, the sensor is used to generate an input signal to the device described above, or at least a specific input signal. These sensors can be followed by an intermediate amplifier to strengthen the weak sensor signal to strong levels against disturbances.

In a further developed embodiment, direct control of the adjusting member by the integrated electronic device is performed with low power. This requires a suitable or low power operating adjuster, which means that the output signal of the integrated electronic device must be matched to the adjuster with the higher input power. Disappears. The use of low power also makes it possible to use flat cables to carry this power, which has the advantage that it requires less floor space and is easier to handle.

The display, input means or operating elements of this device are, in one embodiment of the invention, integrated into one control / monitor desk. The desk may form a unit with the data processing / control unit, but it may also be located remote from the unit and connected to the unit by signal lines.

It is also possible to connect, for example, a powder spray device to the data processing / control device. The powder sprayer, which also controls it internally, still receives data or signals from the data processor / controller, for example the speed of the press or the properties of the ink.

Further advantageous embodiments of the invention are indicated in the following description and the dependent claims of the utility model claim.

[0023]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings.

The printing press shown in FIG. 1, ie a sheet-fed offset printing press 1, comprises several printing units 4 to 7, a paper feed unit 2, a paper ejection unit 3 and a drive motor 8. The driving operation can be performed by the operation panel 9 from the location of the sheet feeding unit 2. Further, the operation panel 10 is also provided in the place of the paper discharge section 3, where the speed of the printing machine 1 is displayed, for example, so that the control of the printing machine 1 can be interrupted. It is detected by the individual constituent parts of the printing machine 1 such as the printing units 4 to 7, the paper feed section 2, and the paper ejection section 3. For example, signals such as the ink profile (ink amount), dampening water profile (fountain solution amount), paper flow, and register matching status as the adjustment result are integrated via the signal line (for information processing) 21. It is supplied to a data processing / control device centralized as the electronic device 11. At the same time, via this signal line, the display signals required by the printing machine for monitoring are directly sent from the integrated electronic device 11 to the individual components of the printing machine 1. In addition to the control signal from the power electronic device 14 inside the integrated electronic device 11 to the printing press 1 via the signal line (for power / control) 22 and the electric adjustment member in the printing press 1, Drive energy is sent to the drive mechanism and auxiliary drive mechanism. The integrated electronic device 11 is further connected by a data line 25 to the plate reading device 12 and by a data line 24 to a quality control device 13 for evaluating the printed sheets with a densitometer. The integrated electronic device 11 is connected to the control desk 15 by a data line 26. This control desk 15 comprises in its first area an input means and a display 17 for an ink transfer management unit 19 and in the other area an input means and a display 18 for a machine operation management unit 16. There is. It is of course possible to combine these two areas and perform machine operation management and ink transfer management in common on one display and one input desk. As can be seen in the figure, there are no additional and data processing actuating members or devices in the printing press 1, which would normally be the usual number of electrical distributions throughout the printing press. The mechanical actuating members are assembled inside the integrated electronic device 11. This electronic device 11 enables optimized control of the printing process by not only assembling the conventional constituent parts but also linking the constituent parts with each other. Furthermore, a data line (for external connection) 20 is provided so that, for example, information from a certain operation preparation place can be supplied to the printing machine. Via this data line 20, for example, all setpoint values to be given to the adjusting member for the preconditioning of the printing press 1 can be sent. Further, job-specific data such as the number of scheduled print copies is also supplied to the printing machine 1 or the control desk 15. Also, data specific to the printing press 1 can be output via the data line (for external connection) 20. For the preparation of the printing process, for example, a preliminary application of the inking unit can be performed with a line of sight by using the integrated electronic device 11. Furthermore, it is possible to check the functions of the control member and the sensor. Further, by using the integrated electronic device 11, it is possible to monitor the wear of the wear part of the printing press 1 and output an alarm signal when it exceeds a certain limit value.

A modification of the integrated electronic device 11 in the embodiment of FIG. 1 is shown in FIG. It is obvious that this embodiment also has the advantages described above.

The configuration of the printing machine is the same as that shown in FIG. The same parts have the same reference numbers.

The integrated electronic device 11 is divided into a first unit, which is a processing block 28 integrated with the power electronic device 14, and a second unit, which is arranged in a part of the control desk 15. There is. This second unit includes only the ink transfer management and register adjustment, and is directly connected to the printing units 4 to 7 via a signal line (ink transfer / register) 23. This second unit is, of course, also connected by a data line 26 to the first unit and processing block 28 for the linking of data. The plate reader 12 and the quality control device 13 are connected to this unit for direct ink transfer control by data lines 24, 25 in this embodiment. This is because both the read result obtained by the plate reading device 12 and the evaluation result obtained by the quality control device 13 are directly used for pre-adjustment or correction of the ink profile. The machine operation management area 16 of the control desk 15 serves as an input / display desk for all the functions performed in process block 28, ie for displaying the state of the printing press which is not related to ink transfer. Eggplant The signal line (for information processing) 21 and the signal line (for power / control) 22 are connected to a processing block 28. Further, the data line (for external connection) 20 is also connected to the processing block 28, and of course, it is possible to monitor and adjust the ink transfer through the data line (for external connection) 20. .

The structure of the integrated electronic device 11 also allows the connection of several printing machines of similar structure. The individual printing presses can be selected separately, and the processing of data from the printing press 1 and the output of data to the printing press 1 can be done in any desired manner, adding an evaluation of the priority of the data. It is also possible.

[0029]

[Effect of device]

 As described above, according to the present invention, all sensor signals, adjustment signals, and control signals are collectively controlled by the integrated electronic device so that these signals can be directly manipulated to increase the data processing speed and data. The effect is that the processing of is not affected by disturbance.

[Brief description of drawings]

FIG. 1 is a schematic diagram of the configuration of a printing press equipped with a data processing / control device according to the present invention.

FIG. 2 is a schematic diagram of a modified embodiment of the data processing / control device of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 printing machine 2 paper feed section 3 paper ejection section 4 to 7 printing unit 8 drive motor 9,10 operation panel 11 data processing / control device (total electronic device) 12 plate reader 13 quality control device 14 power electronic device 15 control disk 16 Machine operation management unit 17, 18 Display 19 Ink transfer management unit 20 Data line (for external connection) 21 Signal line (for information processing) 22 Signal line (for power / control) 23 Signal line (ink transfer / registration relation) 24 ~ 26 data line 28 processing block

Claims (13)

[Scope of utility model registration request] 1. A number of measuring devices (12, 13), sensors for generating electrical signals, electrically controllable adjusting members and at least one for monitoring, controlling and adjusting the unit and the overall print flow. Including one control and monitoring console (15),
In a printing press comprising at least one printing unit (4,5,6), a signal line or a power line (20,21,2) for a signal sent by the sensor, the adjusting member or the unit.
2, 24, 25, 26) from the measuring device (12, 13), the sensor, the adjusting member, the unit and the control / monitor table (15) provided in the printing machine to the outside of the printing machine. Directly connected to the provided data processing / controlling device (11) for signal processing and power control, which also supplies drive energy for the main and auxiliary drives to the printing press. The measuring device (12, 13) attached to the printing machine, the sensor, the adjusting member, and the unit configured as an integrated electronic device including an electronic device and finished by the data processing / control device (11). A printing machine characterized in that control / adjustment and signal input / output using control signals from the control / monitor console (15) are performed by the data processing / control device (11). 2. A printing machine according to claim 1, wherein the data processing / control device (11) comprises a multiprocessor system. 3. The printing machine according to claim 1, wherein the measurement points and control points of the paper feed / discharge section (2, 3) are directly connected to the data processing / control device (11). 4. The printing machine according to claim 1, wherein the signal lines and the power lines (21 to 23) are optical and / or electrical conductor elements. 5. The data processing / control device (11) comprises:
5. A printing machine according to any one of claims 1 to 4, which is arranged in a control cabinet associated with the printing machine (1). 6. The data processing / control device (11) comprises:
A first unit comprising a first unit for adjusting the ink supply and the registration, the other unit (28) for controlling other functions and / or states and for inputting and outputting signals. The printing press according to any one of 5 above. 7. The data processing / control unit (11) or a unit therein comprises at least one main computer connected to several individual computers by at least one data bus. Item 7. A printing machine according to any one of items 1 to 6. 8. The data processing / control device (11) comprises:
At least one for inputting job-specific data, in particular for outputting functions or data to be monitored
Printing machine according to any one of the preceding claims, comprising a data line (20) for the external connection of a book. 9. The sensor according to claim 1, wherein sensors for monitoring the function are provided and the signals of these sensors are fed directly to the data processing / control device (11). Printing machine. 10. Sensors are provided for the monitoring of the function, these sensors being followed by an intermediate amplifier,
10. The signal according to claim 1, wherein the output signal of the amplifier is supplied to the data processing / control device (11).
The printing machine described in the item. 11. The printing machine as claimed in claim 1, wherein the adjusting elements of the printing machine and its associated accessories (8) are directly controlled by a low output signal. 12. The data processing / control device (11).
12. A printing press as claimed in any one of the preceding claims, wherein the connection between the sensor, the adjusting member and other electrical components attached to the printing press is made by means of a flat cable. 13. A printing machine according to claim 1, wherein at least one control and monitoring console is associated with the data processing / control device (11).