Title of Invention

A PROCESS FOR OPERATING A PRINTING MACHINE HAVING MULTIPLE DRIVEN MODULES

Abstract

The invention relates to a procedure for operating a printing machine having several driven modules, especially a web offset printing machine, wherein each driven module has at least one drive, which is regulated or controlled by one drive regulator, wherein each driven module further has at least one emergency stop device, and wherein after activation of at least one emergency stop device of at least one module all drives of all modules are stopped. According to the invention the drives of modules are stopped in a manner that, duly triggered by activating at least one emergency stop device of at least one module, the drive regulators stop each drive individually.

Full Text

FORM 2 THE PATENT ACT 1970 (39 of 1970) & The Patents Rules, 2003 COMPLETE SPECIFICATION (See Section 10, and rule 13) 1. TITLE OF INVENTION PROCEDURE FOR OPERATING A PRINTING MACHINE 2. APPLICANT(S) a) Name b) Nationality c) Address MAN ROLAND DRUCKMASCHINEN AG GERMAN Company MUEHLHEIMER STRASSE 341, 63 075 OFFENBACH GERMANY 3. PREAMBLE TO THE DESCRIPTION The following specification particularly describes the invention and the manner in which it is to be performed : - The invention relates to a procedure for operating a printing machine as per main term of the claim 1. Printing machines have a number of driven modules, wherein each driven module has at least one drive. Then, if the printing machine is executed as web offset printing machine, then the driven modules especially roll changers are several printing modules having printing units, turning rod units and folding devices. For safety reasons, to each driven module of a printing machine at least one emergency stop device is allocated, wherein after operating at least one emergency stop device of at least one module all drives of all modules of the printing machine are stopped. In case of usually known printing machines in this matter the normal approach would be that by operating an emergency stop device of a module a control device of the printing machine specified brake ramp valid for all drives of all modules, on the basis of which brake is applied to all cirives of all modules. Since the drives of modules can be designed differently and it must be guaranteed that while applying brake the maximum current permissible for the drive is not exceeded, in case of commonly known printing machines the brake ramp valid for all drives is designed on the drive, in which there exist the greatest danger that while applying brake the permissible maximum current is exceeded. If, particularly, while applying the brake in a drive the permissible maximum current is exceeded, then the respective drive regulator interrupts the power supply to the drive, so that the module driven by the drive runs out or spins out without application of brake. This kind of running out or spinning out of modules must, however, be avoided. If, as described above, the brake ramp is designed on the drive, which has the lowest power reserve with respect to the maximum current, thus it means for the other drives of the printing machine that the same do not fully exploit their power reserve as a result of specified brake ramp and according to which the application of brake does not happen within optimum time. Based on the above, the problem of the present invention is to create a new kind of procedure for operating a printing machine. This problem is resolved through a -2- procedure according to claim 1. According to the invention the drives of modules are stopped in such a way that, triggered by the operation of at least one emergency stop device of at least one module the drive regulators stop each drive individually. In the sense of the present invention, all drives of all modules are individually stopped by the respective drive regulator, so that according to this each drive is stopped individually for itself within shortest possible time. In the sense of the present invention, not by a single control device of the printing machine a brake ramp valid for all drives is specified, rather internally within the drive for each drive individually obtains a braking torque, on the basis of which each drive is individually stopped. Hereby it is possible, to fend off human related hazards on a printing machine in shortest possible time. Preferably, each drive regulator obtains individual braking torque triggered by operating at least one emergency stop device of at least one module for the drive regulated or controlled by the respective drive regulator in conjunction with the max. current permissible for the respective drive and in conjunction with the operating current present due to operating an emergency stop device. With this individual braking torque the brake is applied to the respective drive under consideration of permissible maximum current within shortest possible time. Preferred further developments of the invention emerge from sub-claims and following description. Execution examples of the invention, without remaining restricted to these, are explained in more details on the basis of the drawing. The drawing shows: Fig. 1 a schematic view of a printing machine developed as web offset printing machine for the elaboration of the procedure based on the invention. Below is the detailed description - giving reference to Fig. 1 - of the invention based procedure for operating a printing machine, wherein Fig. 1 shows a schematic system layout of printing machine developed as web offset printing machine. According to the system layout of Fig. 1 the web offset printing machine covers two printing towers 10 and 11 each of which is made up of two printing modules 12 -3- arranged above each other, wherein each of the printing modules 12 covers four printing units. Further, the web offset printing machine according to Fig. 1 covers two roll changers 13 and 14, a turning rod unit 15 and a folding device 16. The printing modules 12, roll changers 13, 14, turning rod unit 15 and folding device 16 are driven modules of the web offset printing machine, wherein each of the driven modules 12 to 16 covers at least one drive 17. Especially the drives 17 are electrical motors, wherein to each drive 17 one drive regulator 18 is allocated, which regulates and controls the respective drive 17. To each of the driven modules 12 to 16 of the web offset printing machine further at least one each of emergency stop devices 19 is allocated, which also known as Emergency-Off-Buttons. Hence, if at least one emergency stop device 19 of at least one driven module 12 to 16 is operated, then all drives 17 of all driven modules 12 to 16 are stopped. According to the invention the drives 17 of modules 12 to 16 are stopped duly triggered by operating at least one emergency stop device 19 of at least one of the modules 12 to 16 in a manner that each drive 17 is stopped individually by the corresponding drive regulator 18, wherein for this purpose each drive regulator 18 individually stops the respective drive 17 in conjunction with maximum current permissible for the respective drive 17, so that while applying brake the respective permissible maximum current is not exceeded. Hereby it is guaranteed that each drive 17 under utilization of its maximum current or its power reserve for the maximum current is stopped within optimum time or brake is applied within this time. Hereby each driven module of the printing machine can be stopped within shortest time, through which the hazard for human being at the printing machine can be fended off as quick as possible. For the execution of the invention based procedure each drive regulator 18 of each drive 17 calculates an individual braking torque valid for the drive 17 - if an emergency stop device 19 of the printing machine is operated - in conjunction with the permissible maximum current for the respective drive 17 as well as in -4- conjunction with operating current present with the activation of the emergency stop device. With this braking torque the brake is applied to the respective drive 17 within shortest time. For each drive 17 the power reserve for the respective permissible maximum current is utilized, which is available with the activation of an emergency stop device, in order to calculate the maximum permissible braking torque for the respective drive 17. In the execution example of Fig. 1 all emergency stop devices 19 are interconnected with each other as well as with safety control equipment 20. The safety control equipment 20 communicates with the drive regulators 18 of modules 12, 14, 15 and 16, in order to initiate invention based stoppage of all drives 17 of all modules 12 to 16 on activation of a single emergency stop device 19. In contrast to the execution example of Fig. 1 one can also do away with a safety control equipment 20, wherein the emergency stop devices 19 directly communicate with the drive regulators 18. The communication between the emergency stop devices 19, safety control equipment 20 and the drive regulators 18 can take place through 1-channel or even 2-channel signal paths. For this purpose wired signal transmissions, standard bus systems or safety bus systems can be deployed. In the sense of the invention based procedure for implementation of a fastest possible stoppage of all driven modules of a printing machine each drive is stopped through the respective drive regulator and thus within drive in conjunction with the maximum current valid for the respective drive. Each drive runs out this functionality autarc independent of the other drives. -5- List of Reference Symbols 10 Printing tower 11 Printing tower 12 Printing module 13 Roll changer 14 Roll changer 15 Turning rod unit 16 Folding device 17 Drive 18 . Drive regulator 19 Emergency stop device 20 Safety control equipment -6- WE CLAIM: 1. Procedure for operating a printing machine having multiple driven modules, especially of a web offset printing machine, wherein each driven module has at least one drive, which is regulated or controlled by a drive regulator, wherein each driven module further has at least one emergency stop device, and wherein after activation of at least one emergency stop device of at least one module all drives of all modules are stopped, is characterized by the fact that the drives of modules are stopped in a manner that triggered by the activation of at least one emergency stop device of at least one module, the drive regulators individually stop each drive. 2. Procedure as per claim 1, is characterized by the fact that triggered by the activation of at least one emergency stop device of at least one module, the drive regulators apply brake individually to every drive in conjunction with maximum current permissible for the respective drive. 3. Procedure as per claim 2, is characterized by the fact that each drive regulator for the drive regulated and controlled by the respective drive regulator calculates an individual braking torque in conjunction with the maximum current permissible for the respective drive as well as in conjunction with operating current present on activation of an emergency stop device. With this torque the respective drive is stopped under consideration of the permissible maximum current within shortest time. -7- ABSTRACT The invention relates to a procedure for operating a printing machine having several driven modules, especially a web offset printing machine, wherein each driven module has at least one drive, which is regulated or controlled by one drive regulator, wherein each driven module further has at least one emergency stop device, and wherein after activation of at least one emergency stop device of at least one module all drives of all modules are stopped. According to the invention the drives of modules are stopped in a manner that, duly triggered by activating at least one emergency stop device of at least one module, the drive regulators stop each drive individually. To, The Controller of Patents, The Patent Office, -8- Mumbai

Documents:

2126-MUM-2007-ABSTRACT(31-10-2013).pdf

2126-MUM-2007-ABSTRACT(9-4-2012).pdf

2126-mum-2007-abstract.doc

2126-mum-2007-abstract.pdf

2126-MUM-2007-CANCELLED PAGE(9-4-2012).pdf

2126-MUM-2007-CLAIMS(AMENDED)-(31-10-2013).pdf

2126-MUM-2007-CLAIMS(AMENDED)-(9-4-2012).pdf

2126-mum-2007-claims.doc

2126-mum-2007-claims.pdf

2126-MUM-2007-CORRESPONDENCE(17-11-2008).pdf

2126-MUM-2007-CORRESPONDENCE(27-2-2008).pdf

2126-MUM-2007-CORRESPONDENCE(4-2-2009).pdf

2126-MUM-2007-CORRESPONDENCE(9-4-2012).pdf

2126-MUM-2007-CORRESPONDENCE(9-9-2008).pdf

2126-mum-2007-correspondence-received.pdf

2126-mum-2007-description (complete).pdf

2126-mum-2007-drawings.pdf

2126-MUM-2007-FORM 1(27-2-2008).pdf

2126-MUM-2007-FORM 1(9-4-2012).pdf

2126-MUM-2007-FORM 1(9-9-2008).pdf

2126-mum-2007-form 13(9-9-2008).pdf

2126-MUM-2007-FORM 18(9-9-2008).pdf

2126-MUM-2007-FORM 2(TITLE PAGE)-(31-10-2013).pdf

2126-MUM-2007-FORM 2(TITLE PAGE)-(9-4-2012).pdf

2126-MUM-2007-FORM 2(TITLE PAGE)-(9-9-2008).pdf

2126-MUM-2007-FORM 26(31-10-2013).pdf

2126-MUM-2007-FORM 3(31-10-2013).pdf

2126-MUM-2007-FORM 3(9-4-2012).pdf

2126-MUM-2007-FORM 3(9-9-2008).pdf

2126-MUM-2007-FORM 5(31-10-2013).pdf

2126-MUM-2007-FORM 5(9-9-2008).pdf

2126-mum-2007-form-1.pdf

2126-mum-2007-form-18.pdf

2126-mum-2007-form-2.doc

2126-mum-2007-form-2.pdf

2126-mum-2007-form-26.pdf

2126-mum-2007-form-3.pdf

2126-mum-2007-form-5.pdf

2126-MUM-2007-GENERAL POWER OF ATTORNEY(4-2-2009).pdf

2126-MUM-2007-MARKED COPY(31-10-2013).pdf

2126-MUM-2007-OTHER DOCUMENT(17-11-2008).pdf

2126-MUM-2007-PETITION UNDER RULE-137(9-4-2012).pdf

2126-MUM-2007-REPLY TO EXAMINATION REPORT(9-4-2012).pdf

2126-MUM-2007-REPLY TO HEARING(31-10-2013).pdf

2126-MUM-2007-SPECIFICATION(AMENDED)-(9-4-2012).pdf

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