DE8106009U1 - "WASTE VALVE, ESPECIALLY FOR LIQUIDS" - Google Patents

Description

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Dlpl.-lng. Dr.-Infl. HEINZ NICKELS · 'blpi.-Phye. LORENZ HANEWINKEL PATENT LAWYERS Detmolder Straße 26, "" BOO Bielefeld 1 03. MSrz 19Θ1

DiBBB. Ref. F 50/1

rricke Abfülltechnik GmbH + Co.
Kirchplatz 1 «U970 Bad Qeynhaueen 1

Filling valve, especially for liquids

The innovation relates to a filling valve, in particular for liquids, with a flow opening in its green, fine and closed position bendable valve piston.

Liquida filling valves, the Bm spout through a valve piston opened and closed, bind in different Executions become known. Your piston will be there moved by a piston rod and Jb to position dee Pistons for the flow opening are of different sizes Flow cross section B reached, so that with a large Cross-section sin coarse flow with high liquid lead arises and with a small cross-section a fine atom for the purpose Achieving a high dosing accuracy is adjustable. In the fine flow setting is only a narrow annular gap for the Liquid through-flow is present, which, disadvantageously, often does not result in a closed flow of liquid

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and for thin liquids for spraying the liquids leads, uiee no accurate and clean filling is guaranteed.

Valves are also avowed gestures to achieve a outer Feinetromee slots or grooves in the jacket of the valve piston Here, however, is the execution of the Sealing and piston manufacture are complex and therefore costly.

The task of the innovation is therefore to follow the input j the type of built-up liquid filling valve

j, which is simple and cost-saving

bowie shows a permanently safe function and which one | precisely adjustable, thread and lag-free (drip-free) Filling of liquids of various kinds guaranteed.

Ι) 1βΒβ task is neuerungagemSB through the in the characterizing Part of the protection claims 1 listed Geetaltungamerkfcale solved, whereby the design features contained in the sub-claims B. present advantageous further developments of the task solution.

The innovation object does not only extend to the features the individual claims, but also their combination.

The nBuerungagem suitable filling valve consists of a few individual parts simply constructed, cost-saving to manufacture and has a permanently safe function. Because of the nested arrangement of two valve pistons and their mutual and mutual movement by means of a single valve

The shaft is the setting of a coarse flow, a fine flow and a liquid stream that unites both streams possible, whereby this setting takes place on short bends and can be carried out gradually and precisely let. Furthermore, through these two valve pistons a Tedenfreise and after-run free it guarantees what filling ■ in accurate dosing results in "

la the adjustable ring gap for the Feinetrom opposite If the outlet opening is set back in the valve, spraying or the like is avoided in the case of thin liquids ten and it's sin cleaner, smoother, and more accurate PlÜssigkeitBBUslauf guaranteed.

Using the drawings, an embodiment is shown below • Game explained in more detail according to the innovation. It shows:

fig. 1 shows a vertical section through the piston area of the filling valve in the closed position;

a straight section through the piston area of the filling valve in the open fine flow position;

fig. 3 shows a vertical section through the piston area of the filling valve in the completely open one Position (coarse range and fine range position) and

Kig. k is a perspective view of the filling valve.

The filling valve according to the innovation for weight-accurate dosing and filling of liquids of various kinds and viscosity has in a valve body 1 two nested, opposing and jointly movable valve pistons

2; 3, of which the valve piston 2 is a coarse flow piston and the Uentilkalben 3 forms a fine flow calving.

A detachably mounted on the valve body 1 mouthpiece k has a OurchfluBöffnung 5 to be dispensed from the valve fluid and with the seat 6 of this DurchfluBöffnung 5 Grabetromkolben 2 uiirkt together, which represents the outer piston and with respect to the fine feed piston 3 as internal ¹ * flask greater eusgebildet is.

The coarse flow piston 2 is designed as a hollow body and simultaneously takes one in its cavity 7, uelcher Represents liquid flow chamber, the fine flow piston can be moved to a limited extent; both pistons 2, 3 are coaxial arranged in relation to one another and displaceable in the same axial direction together and in relation to one another.

"From the cavity 7 of the coarse-flow piston 2, a flow opening (channel) θ goes off, with the seat 3 of which the fine-flow piston 3 cooperates The shell side of the Brobatrom flask is equipped with at least one, preferably with several inlet openings 11 through which the liquid can flow into the cavity 7 of the coarse flow flask 2.

Both pistons 2, 3 are flexibly coupled by a common valve stem 12, this valve stem 12 runs coaxially to the pistons 2, 3, and the flow opening θ opposite end face of the Groübersomkolbana 2 protrudes into the same and there at its Scheftende let trained to the fine flow calving 3. At the valve

The shaft 12 (or the ventilator) is located inside the coarse piston 2 lying driver 13 in the form of βΙπββ ring, Binee pin or the like. Provided, which with the end wall 2a the coarse flow piston 2 interacts and the coarse flow piston 2 moved to the open position.

Both pistons 2, 3 are each under the action of a compressive stress that brings them into the closed position and maintains them, preferably a compression spring 1t », 15. The compression spring 15, like a helical spring, for the fine atram piston 3 is arranged around the valve stem 12 and supports one end an abutment 16, such as a ring, of the valve shaft 12 and the end of the valve on an abutment 17 on the valve body side. The pressure fader '\ k _t uiie coil spring also faBt, but with coarser spacing about the valve stem 12 and acts with one end on the end wall 2a DBS Grobstromkolbena 2 and supports Aich with the other end on an abutment 17 dea VentilkBrpera 1 from. The compression spring 15 can also act on the shaft 12 at another point, for example on the end opposite the piston 3.

The two pistons 2, 3 have a conical, conical or spherical jacket surface (shape) and corresponding to the piston jacket surface aind the seats 6, 9 auagebilden.

The inflow of the liquid to the filling valve can take place laterally or axially. Equip example IHBt Aich the valve body 1 with a manteleeitigen AnachluBatutzan 16 (Fig. K), hlie Fig «k in Etrich punktiertan lines shows this can AnachluBatutzen 16 you Ain in valve body Ling Erich Tung en which the mouthpiece k opposite Btlrn- • nde recognized .

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The function of the refill valve according to the innovation allows the following:

Fig. 1 shows the closed position, in dBr bBide pistons 2, 3 against the sealing seats S, 9 by spring forces separated by diB 1 <t, 15 are maintained and thus a liquid discharge cannot be done.

To open the V / Bntilee, the valve stem 12 is opposed Her spring force 15 displaced by suitable means, not shown, arranged in the valve, bo that the Feinetrom piston which forms a unit with the shaft 12 3 ausjeinem sealing seat 9 moved out and thereby the flow opening 8 in the coarse flow piston 2 is released for the liquid. Now the liquid, which is also the Cavity 10 through the openings 11 in the grave flow bulb 2 flows into it, from the coarse-flow piston 2 through deseen Durchflußöffnuncf β ale fine atom flow out - here is the Grossatrom flask 2 still in its closed position, uiie Shown in Fig. 2. The Feinetrom can be used as a precisely set, Closed and splash-free stream flow out, since the annular gap between piston 3 and opening θ is set back (facing the coarse piston cavity 7) arranged is.

Now travel the valve stem 12 against its spring force 15 further out of the coarse-flow piston 2, then the thrusts Driver 13 on the inside of the piston end wall 2a and takes the cross flow piston 2 against its spring force 1i » With, (Fig. 2), so that the coarse flow piston 2 from his Diehteitz 6 lifts out and opens the flow opening 5. Now, in addition to the fine flow, the liquid can ice Grossbus bus the cavity 10 directly through the flow opening 5 flow out. The e new of the piston flow orifice θ

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emerging Feinstram unites with the grave stream a liquid stream; Fig. 3 shows the fully open Valve position.

When switching over to the valve closed position, the valve stem 12 moves further into the coarse piston 2 (the stem 12 is lowered), whereby the spring forces Ht, 15 support this movement. Now, however, the valve piston 2 for the coarse flow is first moved into its sealing seat S and the flow opening 5 for the coarse flow is thereby closed, whereas the flow opening β for the fine flow remains open (cf. FIG. 2).

By further lowering the valve stem 12 also the Fine flow piston 3 driven against legs sealing seat 9 and then the infeed opening 8 is also blocked, thereby the fine electric flow is also interrupted and the valve is completely closed (see. Fig. 1).

The displacement movements of the two pistons 2, 3 upwards in leave the opening and down in the closed position can be carried out steplessly or step by step.

It is also advantageous to pass through the fine flow piston 3 move suitable means up and down at high speed so that it performs a flutter movement and thus the performance of the fine atom is still reduced, what results in an even more precise dosage in the waste quantity.

Claims (1)

Il · · Protection claims 1. Filling valve, especially for filling liquids, with a counterpart over a flow opening in a coarse flow, a fine atom and a closing < position of movable valve piston, thus marked • net that in αem a coarse atomic piston (2) forming ■ valve piston a second, ainen Feinetrom piston (3) [forming, opposite a flow opening (8) in the Coarse-flow piston (2) arranged with adjustable valve piston is and both valve pistons (2; 3) by a common Vsjntilscheft (12) bsuiegungsrnSBig gej are coupled. t. Waste valve according to claim 1, characterized in that that the two valve pistons (2; 3) are coaxial with one another , are arranged. 3. Filling valve according to claim 1 and 2, characterized shows that the inner fine flow piston (3) on one The end of the valve stem (12) is arranged and can be displaced to a limited extent with respect to the outer coarse-flow piston (2) Bouiiß can be moved together with this in one l / valve body (1) is held. fc. Filling valve according to Claims 1 to 3, characterized in that that the coarse piston (2) is designed as a hollow body, in its at the same time one Liquid-through-flowrBium forming cavity (7) the Accommodates fine flow piston (3) so that it can be displaced to a limited extent, a throughflow opening (Θ) in the form of a front end r - ι ■ Il t · of a channel with the cavity (7) adjacent, opposite set back from the end of the channel (B) Has sealing seat (9) for the fine flow piston (3) and On the mantle side with several inlet openings (11) for the liquid is equipped. 5. Waste valve according to claims 1 to 4, characterized in that that the fine flow piston (3) to the in the coarse flow piston (2) protruding valve stem (12) is formed and the valve stem (12) with a r-iit that of the Flow opening (Θ) opposite end wall (2a) of the coarse flow piston (2) interacting for the opening movement Driver (13) is provided. C. Waste valve according to claims 1 to 5, characterized in that that the c-two valve pistons (2; 3) under separate Action of compressive forces, preferably spring forces (14; 15), for moving into the closed position and standing in it. 7. Filling valve according to claims 1 to 6, characterized in that that the valve stem (12) for each piston (2; 3) is assigned a helical spring (14; 15) which one end on an abutment (16) or the front end of the Valve stem (12) or the end wall (2a) of the coarse flow piston (2) and the other end are held against the abutment (17) in the valve body (1). 6. Filling valve according to claims 1 to 7, characterized in that that the flow opening (5) for the Giobstrom With sealing kit (6) for the coarse piston (2) in one Mouthpiece attached to the valve body (1) (Ό provided let and this mouthpiece (<O with valve body (1) a fluid space provided around the pistons (2; 3) (10) forms. t »ί · · ♦ I - 10 - 9. AbfUliventil according to claims 1 to Θ, characterized in that that the piston (2; 3) and correspondingly the Oichteitze (6; 9) Bine conical or spherical outer surface to have. 10. Filling valve according to claims 1 to 9, characterized in that that the * · Vantile body (1) with; one since « borrowed or an end face (axial) approach (1S) for the liquid is auegatatt. 11. AbfUllventil according to claims 1 to 10, characterized in that that the Feinstront flask (3) over means into a quick, up and down flutter movement relocatable iet.