SE515263C2 - Method and apparatus for controlling the spraying of moisture in a printing press - Google Patents

Method and apparatus for controlling the spraying of moisture in a printing press

Info

Publication number
SE515263C2
SE515263C2 SE9804187A SE9804187A SE515263C2 SE 515263 C2 SE515263 C2 SE 515263C2 SE 9804187 A SE9804187 A SE 9804187A SE 9804187 A SE9804187 A SE 9804187A SE 515263 C2 SE515263 C2 SE 515263C2
Authority
SE
Sweden
Prior art keywords
valve
valves
solenoid
spray
fed
Prior art date
Application number
SE9804187A
Other languages
Swedish (sv)
Other versions
SE9804187D0 (en
SE9804187L (en
Inventor
Birger Hansson
Original Assignee
Jimek Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jimek Ab filed Critical Jimek Ab
Priority to SE9804187A priority Critical patent/SE515263C2/en
Publication of SE9804187D0 publication Critical patent/SE9804187D0/en
Priority to AU20120/00A priority patent/AU751026B2/en
Priority to EP99963747A priority patent/EP1147012B1/en
Priority to PCT/SE1999/002172 priority patent/WO2000032397A1/en
Priority to JP2000585066A priority patent/JP2002531289A/en
Priority to DE69929541T priority patent/DE69929541T2/en
Publication of SE9804187L publication Critical patent/SE9804187L/en
Publication of SE515263C2 publication Critical patent/SE515263C2/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F7/00Rotary lithographic machines
    • B41F7/20Details
    • B41F7/24Damping devices
    • B41F7/30Damping devices using spraying elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/0054Devices for controlling dampening

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Spray Control Apparatus (AREA)

Abstract

In a method for controlling the spraying of fountain solution in a printing press by means of electrically controlled spray valves (2) in a spray ramp (1), the current profile - at the supply of electric pulses to the solenoid of each valve (2) - from the solenoid is fed back to a valve controlling microcontroller (5) for providing an indication of the functionality of the valve.

Description

U 20 25 30 5115 2(5ë::$ïï;:"¥"p 2 indikation av ventilens funktionalitet. Denna återmatning kan användas för diagnos, för korrektion och/eller för larm. Den ger en viktig möjlighet till förebyggande under- håll och kan minimera antalet oönskade stopp. U 20 25 30 5115 2 (5ë :: $ ïï;: "¥" p 2 indication of the valve's functionality. This feedback can be used for diagnosis, for correction and / or for alarms. It provides an important opportunity for preventive maintenance and can minimize the number of unwanted stops.

Kort beskrivning av ritningen Uppfinningen skall beskrivas mera detaljerat nedan under hänvisning till den bifogade ritningen, på vilken Fig 1 är en översikt över en första utföringsform av uppfin- ningen vid en sprayramp, Fig 2 motsvarar Fig l, men visar en andra utföringsform av uppfinningen, Fig 3 är en illust- ration av ett sensorparti för användning vid uppfinningen samt Fig 4 grafiskt illustrerar en strömsignal, en härav alstrad rörelse hos en sprayventilkolv resp. en av denna rörelse skapad sprayflödesprofil.Brief Description of the Drawing The invention will be described in more detail below with reference to the accompanying drawing, in which Fig. 1 is an overview of a first embodiment of the invention in a spray ramp, Fig. 2 corresponds to Fig. 1, but shows a second embodiment of the invention, Fig. 3 is an illustration of a sensor portion for use in the invention and Fig. 4 graphically illustrates a current signal, a movement generated therefrom of a spray valve piston resp. a spray flow profile created by this movement.

Detaljerad beskrivning av utföringsformer En sprayramp l för en tryckpress visas i Fig 1 och 2.Detailed Description of Embodiments A spray ramp 1 for a printing press is shown in Figs. 1 and 2.

Konstruktionen och funktionen hos en sådan sprayramp är välkänd i facket, och rampen beskrives inte i detalj här.The construction and function of such a spray ramp are well known in the art, and the ramp is not described in detail here.

Sprayventiler 2 i rampen 1 matas med s.k. fuktvätska genom ett rör 3, och sprayningen av fuktvätskan genom ventilerna styrs av en solenoidreglerad kolv i varje ventil.Spray valves 2 in the ramp 1 are fed with so-called moisture liquid through a tube 3, and the spraying of the moisture liquid through the valves is controlled by a solenoid-regulated piston in each valve.

Varje solenoid manövreras elektriskt genom en ledning 4. Strömmen för solenoidens manövrering kan ha utseendet av linjen a) i Fig 4, dvs. en fyrkantvåg (lätt modifierad på ett ej visat sätt med triggande spikar vid ändarna), där pulserna för ventilens öppning kan ha en typisk varaktighet av 5 ms och nollströmsperioderna kan ha en typisk varaktig- het av 8 ms._De resulterande rörelserna hos ventilkolven kan ha utseendet av linjen b) i Fig 4, och sprayflödes- profilen från ventilerna 2 kan då illustreras av linjen c) i Fig 4. Den normala sprayflödesprofilen är sålunda en serie av spraypulser med mycket kort varaktighet, vilket ger det önskade sprayresultatet pä valsen hos tryckpressen där rampen är monterad. Varje ventil 2 är individuellt 10 15 20 25 30 35 3 reglerad, såsom indikeras i Fig 1 av närvaron av fyra ledningar 4.Each solenoid is electrically operated by a line 4. The current for the operation of the solenoid may have the appearance of line a) in Fig. 4, i.e. a square wave (slightly modified in a manner not shown with triggering nails at the ends), where the pulses for the valve opening may have a typical duration of 5 ms and the zero current periods may have a typical duration of 8 ms.The resulting movements of the valve piston may have the appearance of line b) in Fig. 4, and the spray flow profile from the valves 2 can then be illustrated by line c) in Fig. 4. The normal spray flow profile is thus a series of spray pulses of very short duration, giving the desired spray result on the roller of the printing press where the ramp is mounted. Each valve 2 is individually regulated, as indicated in Fig. 1 by the presence of four lines 4.

Den individuella strömsignalen genom ledningen 4 ska- pas i en mikrocontroller 5 med en spänningsmatning 6 (exem- pelvis 24 V) och en kommunikationsmottagare 7 med till/från-information för extern aktivering av den mikro- processorbaserade controllern 5.The individual current signal through the line 4 is created in a microcontroller 5 with a voltage supply 6 (for example 24 V) and a communication receiver 7 with on / off information for external activation of the microprocessor-based controller 5.

Mikrocontrollern 5 har ett kännarparti 5' (även visat i vilket det finns kännare 8, 9, 10 för avkänning flödet hos fuktvätskan i i Fig 3), av temperaturen, trycket resp. röret 3. Dessa värden matas internt till mikroprocessorn hos controllern 5 som viktiga reglerparametrar för åstad- kommande av riktiga sprayflödesprofiler för ventilerna för att åstadkomma den önskade sprayningen (jämnhet, fördel- ning, mängd o.s.v.) på valsen i tryckpressen.The microcontroller 5 has a sensor portion 5 '(also shown in which there are sensors 8, 9, 10 for sensing the flow of the wetting liquid in Fig. 3), of the temperature, the pressure resp. tube 3. These values are fed internally to the microprocessor of the controller 5 as important control parameters for providing proper spray flow profiles for the valves to achieve the desired spraying (evenness, distribution, quantity, etc.) on the roller in the printing press.

Varje mikrocontroller 5 kan i ett praktiskt fall ha åtta utgångsledningar 4. Två ramper 1 med vardera fyra ven tiler 2 eller en ramp med åtta ventiler kan sålunda regle- ras.Each microcontroller 5 can in a practical case have eight output lines 4. Two ramps 1 with four valves 2 each or a ramp with eight valves can thus be regulated.

Som en modifikation av den i Fig 1 visade utförings- formen kan kännarpartiet 5' vara anordnat i rampen 1. Kän- narna 8, 9, 10 är i detta fall externt anslutna till con- trollern 5.As a modification of the embodiment shown in Fig. 1, the sensor portion 5 'can be arranged in the ramp 1. The sensors 8, 9, 10 are in this case externally connected to the controller 5.

I en andra utföringsform enligt Fig 2, vilken kan föredragas om man önskar uppnå en självbärande rampenhet, kan hela mikrocontrollern med sitt kännarparti vara anord- nat i rampen 1 i nära anslutning till ventilerna 2. Här sträcker sig fuktvätskeröret 3, spänningsmatningen 6 och kommunikationsmottagaren 7 in i rampen 1.In a second embodiment according to Fig. 2, which may be preferred if it is desired to achieve a self-supporting ramp unit, the entire microcontroller with its sensor portion can be arranged in the ramp 1 in close connection with the valves 2. Here the moisture liquid pipe 3, the voltage supply 6 and the communication receiver 7 extend into the ramp 1.

Ett viktigt drag hos mikrocontrollern 5 är möjlighe- ten att uppnå en återmatning avseende funktionaliteten hos kolven i förhållande till dess spole i varje ventil som svar på den tillförda strömprofilen. Strömmen till spolen kan exempelvis mätas över en resistor och återmatas till microcontrollern 5. Om denna uppmätta profil skiljer sig 10 J. H för mycket från ett förutbestämt profilfönster, kan det tagas som en indikation på en felfunktion. Strömprofilen kan användas för att diagnosticera funktionen hos varje ventil, så att åtgärder kan vidtagas i tid för att för- hindra oönskade stopp. Alternativt kan individuella korri- geringar av strömmen göras för att återställa funktionen hos en ventil. Ett larm kan också utlösas vid en strömpro- fil som faller utanför givna gränser. Med andra ord kan arbetscykeln för en ventil analyseras.An important feature of the microcontroller 5 is the possibility of achieving a feedback of the functionality of the piston in relation to its coil in each valve in response to the supplied current profile. For example, the current to the coil can be measured across a resistor and fed back to the microcontroller 5. If this measured profile differs 10 J. H too much from a predetermined profile window, it can be taken as an indication of a malfunction. The current profile can be used to diagnose the function of each valve, so that measures can be taken in time to prevent unwanted stops. Alternatively, individual corrections of the current can be made to restore the function of a valve. An alarm can also be triggered at a current profile that falls outside given limits. In other words, the duty cycle of a valve can be analyzed.

Claims (5)

W U 20 25 515 263 i 5 PATENTKRAVW U 20 25 515 263 i 5 PATENT REQUIREMENTS 1. Sätt att reglera sprayningen av fuktvätska i en tryckpress med hjälp av elektriska reglerade sprayventiler (1), att vid tillförseln av elektriska pulser till solenoiden hos (2) i en sprayramp k ä n n e t e c k n a t därav, varje ventil (2) matas strömprofilen från solenoiden tillbaka till en ventilreglerande microcontroller (5) för att ge en indikation om ventilens funktionalitet.Method of controlling the spraying of dampening liquid in a pressure press by means of electrically regulated spray valves (1), that when applying electrical pulses to the solenoid of (2) in a spray ramp characterized therefrom, each valve (2) is fed the current profile from the solenoid back to a valve control microcontroller (5) to give an indication of the valve's functionality. 2. Sätt enligt krav 1, k ä n n e t e c k n a t därav, att strömprofilen används för att primärt kontrollera att kolven hos ventilen (2) rör sig som svar på den elektriska pulsen, sekundärt konditionen hos solenoiden och tertiärt överensstämmelsen mellan olika solenoider.2. A method according to claim 1, characterized in that the current profile is used to primarily check that the piston of the valve (2) moves in response to the electrical pulse, the secondary condition of the solenoid and the tertiary correspondence between different solenoids. 3. Sätt enligt krav 1 eller 2, k ä n n e t e c k n a t därav, att den återmatade strömprofilen utnyttjas som bas för att göra korrektioner på de elektriska pulserna.3. A method according to claim 1 or 2, characterized in that the reloaded current profile is used as a basis for making corrections to the electrical pulses. 4. Sätt enligt krav 1, k ä n n e t e c k n a t därav, att de fysikaliska egenskaperna hos den till ventilerna (2) matade fuktvätskan avkännes och matas till mikrocontrollern (5) med individuella utgångsledningar (4) till ventilerna och en kommunikationsmottagare (7) med till/från- information, så att en integrerad sprayprocess skapas.4. A method according to claim 1, characterized in that the physical properties of the moisture liquid fed to the valves (2) are sensed and fed to the microcontroller (5) with individual output lines (4) to the valves and a communication receiver (7) with to / from information, so that an integrated spray process is created. 5. Sätt enligt krav 4, k ä n n e t e c k n a t därav, att temperaturen, trycket och flödet hos fuktvätskan avkännes.5. A method according to claim 4, characterized in that the temperature, pressure and flow of the wetting liquid are sensed.
SE9804187A 1998-12-02 1998-12-02 Method and apparatus for controlling the spraying of moisture in a printing press SE515263C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9804187A SE515263C2 (en) 1998-12-02 1998-12-02 Method and apparatus for controlling the spraying of moisture in a printing press
AU20120/00A AU751026B2 (en) 1998-12-02 1999-11-24 A method and device at a spraying ramp for a printing press
EP99963747A EP1147012B1 (en) 1998-12-02 1999-11-24 A method and device at a spraying ramp for a printing press
PCT/SE1999/002172 WO2000032397A1 (en) 1998-12-02 1999-11-24 A method and device at a spraying ramp for a printing press
JP2000585066A JP2002531289A (en) 1998-12-02 1999-11-24 Method and apparatus for a spray lamp of a printing press
DE69929541T DE69929541T2 (en) 1998-12-02 1999-11-24 DEVICE AND METHOD FOR CONTROLLING DESTROYING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804187A SE515263C2 (en) 1998-12-02 1998-12-02 Method and apparatus for controlling the spraying of moisture in a printing press

Publications (3)

Publication Number Publication Date
SE9804187D0 SE9804187D0 (en) 1998-12-02
SE9804187L SE9804187L (en) 2000-06-03
SE515263C2 true SE515263C2 (en) 2001-07-09

Family

ID=20413535

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804187A SE515263C2 (en) 1998-12-02 1998-12-02 Method and apparatus for controlling the spraying of moisture in a printing press

Country Status (6)

Country Link
EP (1) EP1147012B1 (en)
JP (1) JP2002531289A (en)
AU (1) AU751026B2 (en)
DE (1) DE69929541T2 (en)
SE (1) SE515263C2 (en)
WO (1) WO2000032397A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1558936A4 (en) * 2002-09-20 2008-11-19 Technotrans America Inc Amperage control for valves
DE10322320B4 (en) * 2003-05-17 2007-03-15 Technotrans Ag Valve arrangement for spray dampening of printing machines
GB0417586D0 (en) * 2004-08-06 2004-09-08 Goss Graphic Systems Ltd Dampening control for a printing press
US20080229945A1 (en) * 2007-03-24 2008-09-25 Niemiro Michael A Spray dampening valve having associated electronic adjustment and correction data
DE102008031234B4 (en) * 2008-07-02 2011-08-25 technotrans AG, 48336 A spray fluid applicator for applying a fluid and a method for detecting a flow disturbance

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469024A (en) * 1982-10-18 1984-09-04 Press Machinery Corporation Fluid dispensing apparatus such as spray dampener for printing press and method of dispensing
US4708058A (en) * 1985-10-10 1987-11-24 Smith Rpm Corporation Water pulse spray dampening system and method for printing presses
US5038681A (en) * 1988-01-19 1991-08-13 Jimek International Ab Control method and apparatus for spray dampener
CA1313388C (en) * 1988-01-19 1993-02-02 Jimek A.B. Spray dampener valve assembly and control system
US4899653A (en) * 1988-05-09 1990-02-13 Rockwell International Corporation Microprocessor-based press dampening control
SE465764B (en) * 1990-03-06 1991-10-28 Nils Reinhold Berntsson SYSTEM FOR APPLICATION OF LIQUIDS ON ROLLS IN A OFFSETROTATION PRESSURE PRESSURE
SE506715C2 (en) * 1993-10-11 1998-02-02 Grafiskt Team Ab When wetting and cleaning rollers, use an offset rotation printing press
JPH0866643A (en) * 1994-08-29 1996-03-12 Koike Seisakusho:Kk Liquid injection detection means

Also Published As

Publication number Publication date
SE9804187D0 (en) 1998-12-02
AU751026B2 (en) 2002-08-08
EP1147012A1 (en) 2001-10-24
DE69929541D1 (en) 2006-04-06
EP1147012B1 (en) 2006-01-18
DE69929541T2 (en) 2006-07-20
WO2000032397A1 (en) 2000-06-08
AU2012000A (en) 2000-06-19
JP2002531289A (en) 2002-09-24
SE9804187L (en) 2000-06-03

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