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 pressInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/20—Details
- B41F7/24—Damping devices
- B41F7/30—Damping devices using spraying elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0054—Devices 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
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)
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)
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)
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 |
-
1998
- 1998-12-02 SE SE9804187A patent/SE515263C2/en not_active IP Right Cessation
-
1999
- 1999-11-24 EP EP99963747A patent/EP1147012B1/en not_active Expired - Lifetime
- 1999-11-24 AU AU20120/00A patent/AU751026B2/en not_active Ceased
- 1999-11-24 JP JP2000585066A patent/JP2002531289A/en active Pending
- 1999-11-24 DE DE69929541T patent/DE69929541T2/en not_active Expired - Lifetime
- 1999-11-24 WO PCT/SE1999/002172 patent/WO2000032397A1/en active IP Right Grant
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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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |