EP0908803A1 - Computer for a printing machine - Google Patents

Abstract

US5692989 A This invention relates to high reduction planetary transmissions that do not use internal ring gears and particularly planet gears that are the support for the planet carrier and in some cases the planet carrier may be used as a support bearing for the input shaft relative to the stationary and output gears with which they mesh. The floating is accomplished by providing means to let the carrier move radially in response to unbalanced forces from the planet gears. The floating of the planet gears improves the alignment between the intermeshing gears and the balancing of the load between the planet gears. A speed reducing device placed between the input shaft of the transmission and the drive means is used to decrease the speed of the input shaft to decrease the centrifugal force on the planetary pinions as they rotate around the sun and output gears. <E3-Claims PN=5692989> The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: ÄECNÜ A planetary power transmission in combination with a speed reducer comprising; a stationary housing; a drive shaft extending into said housing; a stationary gear having external teeth surrounding said drive shaft and fixed to said housing; an output shaft extending into said housing opposite to and a axially aligned with said input shaft; an output gear mounted on said output shaft; a planet carrier having at least two equally arcuately spaced planet shafts extending therefrom; first planet gears rotatably mounted on said planet shafts and positioned to mesh with said stationary gear; second planetary gears rotatably mounted on said planetary shaft and positioned to mesh with said output gear; said planetary gears being coupled to rotate together; a radially extending drive plate mounted on the inward end of said drive shaft for rotation therewith and having opening near its radially outward ends; pins attached to said carrier and extending into said openings in said drive plate to rotate said carrier with said drive shaft, said pins being in a loose fitting relationship with said drive plate to allow radial movement or said pins and said carrier relative to said drive plate; a power source; a speed reduction mechanism positioned between the output shaft of said power source and said transmission drive shaft.

Description

The invention relates to a computer for a printing press according to the preamble of claim 1.

For the control of printing presses, for processing, recording and forwarding of the variables controlling the printing process and for recording during Data provided in the printing process are mostly used computers that are built like a PC. Accordingly, these computers also include a RAM designed as RAM is a non-volatile, rewritable Storage medium in the form of at least one hard disk. The different Tasks or jobs of the printing press or around the printing press Computers assigned around are connected to each other via a data network connected, so that the data required at the individual stations in particular can be controlled from a server. Such a computer network in the form of a print shop control system is known from EP 0 356 704 B1. In this known system, they are the individual Workplaces / work areas within the computer assigned to the print shop designed as an identical PC, which is connected to a server via a network line are connected. The individual computers are different via interfaces Devices can be connected, such as in particular densitometers, pressure plate scanners or other measuring devices. The one built on the client-server principle Network is also configured in such a way that at the respective Workstation or workstation computer only retrieves the data to be processed there can be or can be provided to the corresponding computer. So is Ensures that unauthorized access to third-party databases is not possible can be intervened and in particular not at least one over one additional computer connected printing machine in the sense of a control intervention is manipulable. By the existing on the workstations Interfaces is an extension of this network in the sense of remote data transmission possible, i.e. a modem (dial-up / ISDN) can be connected to one of the computers so that data can be sent and received.

EP 0 395 890 B1 describes such a computer network for controlling Known printing machines, which like the aforementioned print shop control system is built in the form of a client-server architecture and a central computer as a database. There is a modem on this central computer Remote data transmission connected in particular via ISDN, so that a connection with the manufacturer of the printing press or a representative can be to service data, spare parts information or other communications exchange.

As already indicated above, in such computer networks, precautions to which printing presses are connected to provide that in addition to unauthorized data manipulation by a workplace not intended to control the machine does not do that Running or operating behavior of the printing press can be influenced. The Printing press may only from a specially designated work area (Terminal / control center) can be operated from, but not from a completely different one Computer assigned to task areas. If the computer network is replaced by a Remote data transmission equipment added, so these precautions are to expand that only specially provided data from one on the Modem connected station can be queried or manipulated.

The object of the present invention is therefore a computer for a printing press to expand in accordance with the preamble of claim 1 in that an easy-to-implement diagnostic option for the printing press computer or the computers connected to the network with regard to the existing ones Interfaces is possible.

This object is achieved by the characterizing features of claim 1. Further developments of the invention result from the subclaims.

According to the invention it is provided that the computer has a device for detection which has data representing the state of at least one interface, this data being stored on the non-volatile, rewritable storage medium (Hard disk) can be saved. The facility for capturing the data representing the state of the interface is controlled by a i.e. the process of capturing and storing the system state of the least data representing an interface and the end of this recording process can be triggered by an operator.

According to a development of the invention it can be provided that in addition to the Device for recording the interface state representing Data also a device for manipulating this data on the non-volatile, rewritable storage medium is provided. This facility to handle the data can essentially the function for Delete the log file, copy such files and the to known functions for sorting or structuring the data.

The device for interface logging provided according to the invention is designed as a client-server process, i.e. the user interface of the computer with the appropriate device (keyboard monitor) represents the client who Commands for file access to an interface data acquisition starting / stopping Server process in the computer sends. The the corresponding prompt sending client can in the user interface of the respective computer be integrated, which means that triggering the interface logging according to the invention and the data handling provided for further training via the User interface of the respective computer itself. Such training is particularly advantageous if the computer is the Control center computer or the computer of the control panel of the printing press, the computer therefore has its own keyboard and display device (Monitor, CD). Is it designed according to the invention Computer around a control computer within the machine or a specific one Task to be executed within a control cabinet, see above can be used to trigger the recording of the interface logging be that the corresponding client in a couplable to the computer Service computer is housed. The service computer can be connected either via a special interface (plug connection) with the respective Computers take place or via the computer that connects this computer to other computers Network. So it is also possible that the interface logging triggering client in the control center computer or the operator terminal of the printing press assigned computer is housed and on this computer data collection line connecting to the other computers of the press control the corresponding client signals for logging the corresponding Interfaces are sent in the respective computers. It is too possible using the invention that the interface data is not in a non-volatile, rewritable memory of the computer itself via a data collection line (network) to a suitable memory sent from another computer and stored there. For example the hard disk of a computer of the control center of the printing press the protocol data a variety of interfaces available in different computers be stored centrally.

According to a preferred development of the invention it is provided that the Activation or deactivation of the logging of the at least one interface the computer via a device connected to the computer Remote data transmission is sent from an external computer, i.e. of the corresponding client, for example at the manufacturer of the printing press or a representative office can be arranged. The one from outside arranged service computers closely coupled via the data transmission line and the modem Then solve commands to activate / deactivate the logging also saving the system state of the at least one interface representing data on the hard disk.

Furthermore, an embodiment of the invention is explained based on the single drawing. The figure shows in principle a computer for the Control center of a printing press with a non-volatile, rewritable Storage medium in the form of a hard disk and a number of interfaces.

A computer 1 on a printing press, not shown, is within the Control center of the machine, i.e. the computer is used for input, recording and management of data that the printing press or the control of the Serve the printing process and also for recording and administration order-specific data. For this purpose, the computer 1 has a non-volatile rewritable storage medium 2 in the form of a hard disk on which the various Data can be saved and called up. The computer 1 also points a number of interfaces 3.1, 3.2, ...., by means of the various devices can be coupled to the computer. Via the interfaces 3.1, 3.2, .... are in particular the monitor of the control center, the keyboard, a network connection connectable to further computers and possibly also data acquisition devices.

The computer 1 further comprises a logging device in the form of a Server process 4, which as a correspondingly designed program part of the the program running on the computer in the manner shown with the non-volatile rewritable storage medium 2 (hard disk) and the interfaces 3.1, 3.2, ..... is connected. This server process 4 acts via one device each 'Protocol start' 5 and a device 'Protocol stop' 6 on the interfaces 3.1, 3.2, ..... one, so that a recording process of the state of the interfaces 3.1, 3.2, .... representing data on the non-volatile, rewritable Storage medium 2 can be triggered and in a corresponding manner Recording process can be ended again. The ones provided for logging Interfaces 3.1, 3.2, .... are extended by program codes so that through the 'protocol start' device 5 and the 'protocol stop' device 6 corresponding data can be stored on the hard disk. According to the invention provided that a corresponding "start" protocol 5 Control file is created on the server side (logging device), whereby via the file name (including path) specifies which interface 3.1, 3.2, .... to log it. The correspondingly created control file can also provide information for controlling or parameterizing the logging included (or maximum number of data bits that are logged; Logging with or without Timestamp, etc.).

The corresponding control file on the Server side deleted. The file name (including path) is used to specify which one Interface 3.1, 3.2, .... logging must be deactivated. The transfer and storing corresponding data on the non-volatile, rewritable Storage medium 2 (hard disk) is thereby prevented.

The server process 4 of the logging device is operatively connected to a modem 7, which connects to a transmission channel 8 (telephone, ISDN, Internet, intranet, etc.) realized. Another modem 9 is thus the Computer 1 according to the invention via the transmission channel 8 with, for example arranged with the manufacturer of the printing press or a service branch Computer 10 connected, which already mentioned above Client process for activation, deactivation of logging as well as that executable data handling of the log files. According to the invention it is provided that the computer 1 via a user interface, not shown (Keyboard, display) provides a menu by means of which a connection to the service computer 10 indicated in the figure, for example one Service branch can be produced. After which the connection addressed is established, a qualified service person can access the computer 10 the non-volatile, rewritable storage medium 2 (hard disk) of the Computer 1 stored log files of the interfaces 3.1, 3.2, .... Read out and edit with appropriate software tools for analysis purposes. In particular, the server process 4 of the logging device is via the computer 10 and thus the device 'protocol start' 5 and the device 'Protocol stop' 6 can be activated within the computer, i.e. the operator can start very specific diagnostic and logging processes and also finish again.

Reference list

1

Computer (control center computer)

2nd

non-volatile, rewritable storage medium (hard disk)

3.1, 3.2, ....

interface

4th

Server process

5

'Protocol start' setup

6

'Protocol stop' setup

7

modem

8th

Transmission channel

9

modem

10th

Computer (service branch)

Claims (6)

Computer for a printing press, in particular sheetfed offset printing press, the computer being operatively connected to a non-volatile, rewritable storage medium, in particular in the form of a hard disk, and having at least one interface for coupling data input and output devices,
characterized by
that a logging device is provided, by means of which data representing the state of at least one interface (3.1, 3.2, ....) can be stored on the non-volatile, rewritable memory (2). Computer according to claim 1,
characterized by
that the logging device in the computer (1) as a server acting via a device 'protocol start' (5) and a device 'protocol stop' (6) on the at least one interface (3.1, 3.2, ...) Process (4) is formed. Computer according to claim 1 or 2,
characterized by
that the logging device is connected to a further computer (10) for starting and stopping a logging process. Computer according to claim 3,
characterized by
that the logging device is connected to the further computer (10) via a modem (7) and a remote data transmission channel (8). Computer according to one of the preceding claims,
characterized by
that the data stored on the non-volatile, rewritable memory (2) (hard disk) and representing the status of at least one interface (3.1, 3.2, ....) can be handled via a user interface of the computer (1) with regard to the start and stop of the logging are. Computer according to claim 3,
characterized by
that the computer (1) has a menu which can be operated via a keyboard and display device for establishing a connection to a further computer (10) via the modem (7).

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