DE3224174A1 - DEVICE FOR MIXING THE MOISTANT - Google Patents

Description

VED Kombinot Polygraph "Wörrtor Lomberz" Leipzig

P 139

Device for wetting the dampening solution Field of application of the invention:

The invention relates to a device for Miochen dos Fouchtmittele for the printing forms of offset printing machines non.

Characteristics of the known technical solutions:

A well-known device (OE-PS 12 63 020) to rent dos etching concentrate and the water for the production of the Moistening agent for the printing forms of offset printing machines consists of a storage container and an Ooslerbo container for the etching solution and a mixing container for mixing the etching solution with water, the ßohalteor are connected in the gonannton order by pipelines, the Dosiorbohalteor a device for regulating the Has etching liquid to be dispensed and a liquid liquid level controller is installed in the mixing tank A top Magnotventil the supply dor Ätzflüsslgkeit from j dom Dosierbohälter and the supply of water into the mixing vessel by a Waseorstrohlpumpe and a fountain solution in the dampening boxes of the dampening system controls pump delivering "

Since the etching solution consists of various components, for example gum arabic, phosphoric and nitric acid,

bootoht, konn oo boi dor gonannton device in advance « rntobohalteor to Konzontratlonountorochiodon in a row

Entmlechons oinzolner Bootondteilo kommon. Same thing applies when due to Mongol court gate Druokquolitöt oin Dootondtoil in the Vorrotobohöltor is refilled Under certain circumstances oo even «especially through gum arabic, to skin formation on the etching solution ·

Another disadvantage is that the solenoid valves in addition to the Suddenly a larger function is available on « have to show. It is therefore also in certain Abotondon oin flushing or application process with water required.

This requires inter alia. elnon relatively complicated structure of the Contraption.

The device for Horstollung dos dampening solution according to DE-PS 14 42 678 booltzt an airtight sealed Storage tank for the etching solution, the outlet nozzle of which is arranged on the bottom and is designed as a floating body and protrudes in the dosing tank, which is also equipped with a liquid carbonate level regulator. In the supply line for the water there is a « no jet pump interposed, its suction port with the measuring vessel raised to a certain height in the lake immerses.

The storage container to be removed from the mixing container for refilling and cleaning must be regarded as particularly disadvantageous in this device. Apart from that of an additionally required, tightly closing shut-off valve on its outlet connection is the Handling of the filled storage container is physically stressful and cumbersome.

A short-term refilling of a constituent of the etching solution and df-i.,. U 'the change in its concentration in the following

OO "Inon unbofriodioondon OruokorQobnioaöo lot with" jleoer execution of the storage container not possible ·

Aim of the invention}

The aim of the invention is to provide a functionally reliable, easy-to-manufacture and easy-to-use device for

Mixing the dampening agent for the printing forms of off- > to create setrotatlonsdruckmaschlnen ·

Essence of the invention:

The invention is based on the object in devices of the type mentioned that have a storage container for Etching solution, a Dosiorbohaltor to measure a variable amount of the Etching Lounges and one with a FlOe- oigkoitsetandorogler equipped mixing tank for the dampening solution, consisting of Ätzlöoung and water, into which the supply line for dos water protrudes Contains control valve with downstream gate jet pump, their Sougloitung on don Oooiorbehältor connected is, have a good mixing of the etching solution in the storage container with simple, little trouble-prone tech-. nischon Mlttoln as well as an exact, variable, easy to enable the handling of the etching solution for the dampening solution,

For this purpose, the Dosiorbohalteor is designed as an overflow vessel, installed in the storage container and connected to a pump delivering a lotztorom etching solution through a pressure line and contains an outlet connected to the suction line of the jet pump in the area between the dome and an overflow for the etching solution vertically displaceable displacement body I

Oa outside the tent for the suction dolr Ätzlöoung

through the jet pump »ouo dom DooiorbohüXtor into the Mlechbohöltor dio Pumpo. WahlwoIoο constantly etching solution In don Qooiorbohftltor and over doooon upper course ,! label to back fördorn in don Vorrotobohülter, iet oin intensive mixing dor Ätzlöoung guaranteed and olnd secretions elnzolnor Bestandtoilo in Folgo Entroiochena off · Dlos lot especially important "Wonn ouf due to mangelhafton print quality Konseen stepped lon of Ätzlöoung in the reservoir by Zugabo an ingredient changed anytime shall be·

The device has a simple structure, is easy to maintain and easy to use, allows easy refilling of the etching solution and does not require any acid * constant control valves «The doeierbehölter enables a very foinfOhligo, exact and reproducible dosage of the etching lounges.

Due to the long deodorant doiorbo containers to be filled with Etching solution available time is only a single pump with a low delivery rate, for example in Pias taue leadership, required.

In order to set the correct concentration of the moisturizing agent, it is advantageous, according to the invention, to attach an actuating rod to the front side of the displacer body, which carries a pointer that is connected to a scale fixed to the frame and can be locked via a screw opposite the dome housing of the dosing container be calibrated to the concentration values required for the dampening solution 130

Execution example:

The invention is to be explained in more detail below on an exemplary embodiment. The accompanying drawing shows | -

Flg. II a vertical section through a device

gum Misohen döe Pnuchtmittelo din partly »brazen · tlochor Dorotollung

/ I In dom Vorrotobohältor 1 for dio auo mohroron Dootandtoilon, wlo gum arabic, Phonphor and GalpoVoroiiuro, zueommongoootzto Ätzlöoung 2 bofindot oich oino from olnom on the cover 3 dos Vorrotobohalteors 1 narrow flanochton Electric motor 4 ongotriobono pump 6 «whose partly above the Flüeelgkeltoopiogole dor Ätzlöoung 2 presented Pressure line 6 let on the inflow Q doe located below the upper course 7 arranged in the storage container 1 Dosler container 9 locked.

The drain 12 connected with dor obonfallo partly above doo Flüooigkoitsopio- · golo the Ätzlöoung 2 vorlogton suction pipe 10 of the jet pump ¹ 11 in the vicinity of the bottom 13 doo Dooierbohöltors 9 ongoordnot. In the latter bofindot eich oln in the Boroich between dom outlet 12 and the Oborlouf 7 oonkrocht vorochiobboror Verdrängorkörpor 14, on the case one in the with dome housing 15 of the Oooiorbohältors 9 screwed cover 16 guided, with an operating rod 18 equipped with a handle 17 is attached

I.

To guarantee oinor unimpeded circulation of the Etching solution 2 in Dosiorbehalter 9 heated doaoon housing 15 inside between the outlet 12 and the upper course 7 has a larger diameter compared to the dome pusher body 14 · The with the displacement body 14 firmly connected, oinor »vertical slot 19 in the Gohaueo 15 dos door holder 9 penetrating pointer 20 wolot ouf the gostollfest angoordnote, depending on the concentration of the etching lounges 2 in the dampening solution 21 dos mixing container 22 calibrated te scale 23The in elnor threaded hole dos Dockeis 16 radially to the actuating rod 10 gofeguided screw 24 diont. the quotation of the Vordriingorkörporo IA- in oinor desired position.

Olo Strohlpumpo 11 lot with the interposition of the Mag-17G nototouervontlloe 25 ort dlo supply line 26 for the Wosoor and over the drainage pipe 27 ent the mixing tank 22 ongoochloooon. Zn Iotztorom lot oin with 2 Höhenveretollbaron oloktrlochon Accountktgoborn 23; 29 euogorüstotor Flüooigkoitootondoroglor 30 to control dos Magnetotouorvontiloo 26 in pre-connection with dom the pump 6 driving electric motor 4 ongoordnot.

For dlo not belonging to the Gogonotond dor invention « a professional noholiogondo oloktriocho switching an-order for dlo device solion hior only as olnzuhaltondo conditions gononnt that the Fördorzoit the Strohlpumpo 11 Be bigger in Jodom Foil must olo the complete suction of the etching solution from the Dooiorbohaltor 9 required for doo, the pump o 5 with goöffnotom Magnototeuervontil 25 always out of order Lot and dor Ooolorbo container 9 in any case before dom Opening of the Mognotstouervontilos 25 up to dom for the dosage bostlmraton volume filled lot «Because the latter, günotigorwoieo geoondort to be controlled with regard to the Zoitdauor The process is much shorter than the sinking of the liquid coitospiegol dos Fouchtmlttelo 21 in the mixing container 22 from the upper contact gobor 28 to the lower account donor 29 of the Flüosigkoltsstandsrogloro 30 last, can with the help of the Pump 5 in the remaining time the Ätzlöoung constantly between storage container 1 and Dosiorbohalteor 9 and pumped around mixed with it and prevented skin formation.

Should the composition of the etching solution 2 by adding oinoo Bootandtoilos, for example acid, due to οInes unbefriodlgondon print results lake changed after opening the calibration In the cover 3 dos reservoir 1 contained lid 31 can be done without any problems.

Not shown in the drawing are the connecting elements

loitungon, incluoivo Pumpo, for the fouchtmittol between dom Mioohbohältor and don Fouohtmittolkäoten dor oinzelnon Feuchtworko. ; ι

Due to the consumption of fouchtmittol for the printing process, the liquidity of the fouchtmittelo decreases 21 in the mixing container 22 above. Wiihrond dioooo Vorgongo3 fills dio from the electric motor 4 ongotriobono Pumpo 5 don dosing container 9 bio to the overflow 7 with Ätzlöoung 2 and promotes on the latter "whose Mlochon bowirkend back in don reservoir 1. To still dom shut off the pumpo 5 a subscription to the Ätzlöoung 2 in Dooiorbohältor 9 doo NivoQU doo tributary Θ to vormoldon, oollto Vorteiligerwoloo between dor pump 5 and dom Dooiorbohältor 9 a Check valve can be installed in the pressure line 6. An arrangement of the inflow 8 above or is also conceivable zumlndost in the same amount as dom in these cases Doolervolumon upwardly limiting upper course. 7th

In contrast, in the case of dom Boispiol, according to FIG. 1, without a built-in check valve, the one between the inflow 8 in each case and dom drain 12 remaining Flussigkoitsvoluroen for the Dosage available.

If the Flüsoigkoitsoplogol doo Fouchtmittola 21 has reached the Unteron Kontaktgabor 29 dos Flüosigkoitootandsroglors 30, dos Magnototouorvontil 25 will goöffnot, whereby the motor 4 for dio Pumpo 5 was switched off before boroito. It runs for so long Waooor and Ätzlöoung 2 through the Drain line 27 from the jet pump 11 into the mixing tank 22, until the Flüosigkoitoopiogol dan oboron Kontaktgobor 28 has reached and the Magnototouorvontil 25 is closed. By this time at the latest, the liquid composition volume determined for the dosage was dor Ätzlöoung 2 from dom Dosing container 9 purchased. This applies to every amount of etching solution to be set by adjusting the pre-flowering body 14 on the scale 23 and to be fixed by the Gchraubo 24.

Division dor vorwondoton Bozugoxelohonι

1 Supply container 2 Atzlooung 3 Undocking 4th Electric motor 5 pump 6th Pressure line 7th Upper course 8th Inflow 9 Oooiorbo container Γ 10 Snugloiting 11th Jet pump 12th Drain 13th floor 14th Pusher body 15th Gohäuee 16 Dockol 17th handle 18th Message toatango 19th slot 20th Zoigor 21 Fouchtmittol 22nd Mixing tank 23 scale 24 screw 25th Magnotetouorvontll 26th Feed line 27 Drainage 28 Account account 29 Contact gobor 30th Fluealgkeltaatanda regulator 31 lid

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Claims (1)

-JET- invention oano fruit 260 1. Apparatus for Miechon doo Fouch / tmittols for the Printing form from Offootrotionodruckmaschinon with oinom storage tank door for etching lounges, olnem doses of chlorine container for Abmoooon oinor voriiorbaren Monge dor Ätzlöoung and oinom with elnora Flussigkoitootandsroglor equipped Miochbohaltor for the off Etching solution and WooQor existing foaming agent, in don dio supply line for the Waoeor protrudes «the one Stouorvontil with nochgoochaltotor jet pump ent holt, doron Sougloitung on don Dooiorbohaltor ango- echloooon 1st, gokonnzolchnot by the fact that the Dooiorbohöltor (9) ale Oberlaufgofäß auegobildot, permanently installed in the Vorrotobohaltor (1) and with a pump from Iotzterom Atzlöoung (2) conveying » po (6) connected by an Oruckloitung (6) let and one in the area between the dome with the suction pipe (10) connected to the jet pump (11) Drain (12) and an upper course (7) for the Ätziöoung (2) sonkrecht vorachiebbaron pusher body (14) contains. 2 · Device according to item 1, characterized in that an actuating rod (18) is fixed on the front pusher body (14), which carries zoomors (20) connected to the scale (23) and with the help of a screw (24) can be locked in relation to the housing (16) of the dosing container (9),