DE1918081C3 - Process for the production of fluid-operated switching and components, device for carrying out the process, as well as fluid-operated switching and components produced according to the process - Google Patents

Description

The invention relates to a method for He; -Hellen of fluid operated sound ιιικι 4 " Shark elements with at least two closely spaced Plates with fluid channels. liie in at least one of the facing Plaitenmnenflüchcn as depressions by means of a Stamp are pressed in. There is no such procedure known as the German Auslegcschrift 1 () ') 3 iS25 iiuswcist.

The known method is a pressing process, the plates from Ciiimmi or a plastic plastic in the way unteivvoifen become that the canal judges in question Result in depressions. In doing so, however, the application of heat is always required, or it plasticizers must be added. However, both of these mean complications and a considerable amount Expenditure on equipment precautions.

The problem, on the other hand, lies with the disturbance to remedy this and to simplify the process of the type outlined at the beginning design it like this. that there is a deformation process working with a compression pressure. that does not require any additional measures, such as the use of heat or plasticizers

According to the invention, this problem is solved in that in the inelastic material with plastic deformability existing plates, the fluid channels are embossed.

In this direction offered. as a comparison of the two processes readily shows, the aforementioned German Auslegeschrifi the expert no application.

The same also applies to a similar process to be included in the state of the art, which is published in a publication von Humphrey: "Fluidics", Boston, I ') f5, p. 7' and 7 ').

The technical progress guaranteed by the process after FrlinJung, compared to the Preüvei, which was discussed as known, provides an animal / indispensable and satisfactory solution to the task outlined at the beginning, namely in the creation of a wedge that is simpler than the known and, moreover, more precise in terms of shape and shape-retaining wedge Process which, above all, enables very clean and tightly tolerated flow channels. whereby Rniis.Ii .: opinions and l) ruck \ eilusie in ile channels are strongly deprecated. The method according to Tier Frlinduiu ¹ is particularly suitable for the production of linear Ntriimiin'jsu! (! Results \ on high accuracy.

These advantages tier simplicity and accuracy theses method apply to the rest to an even greater extent than other known methods for I lersteliuiiü ströniv iiüsmillel-operated sound and Shark elements - whether they are cutting or Giavierveifahien or etching processes.

The peculiarities of the minting process according to tlei The children prefer to be seen. if the treated after him! Paintings from metal ivsieheii. especially made of aluminum, because it is particularly clean, precise and easy to use result in wear-resistant channels.

The invention also relates to a device: to carry out the procedure according to the FiTmdum :. which is particularly suitable. the aspired and ensure the benefits achieved. With this device the defining part of the stamp consists of one corresponding to the fluid channels sublime Köipcr. the one between one to be shaped Plate and a printing plate otler is arranged between two plates to be embossed. Thereby - ■ especially when it is a question of the production of currents conflict !; animal formative Part of the stamp's advantageous wcisc to one, 11 Wire, in particular from a wet-drawn one Wire.

The F.rrmdung should now on various ■ Aüsführungsbeispielen with reference to tlie Drawings are explained in more detail. Fs time

Fig. 1 Raumhildlich a Schallelemenl according to a Most aiis leading form.

I 'i g. 2 raiimbüdlich this shell element in finished State.

I · 'ig. 3 and 4 spatially one plate for one Retaining element with two different pricing tools.

Fig. 5 partially sectioned a switching element, which with an embossing tool; according to F ie. 4 has been produced.

Fig. 6 a circuit for fluid fuel operated Sound circuits, analog printed circuits for electrical circuits, which are made with the help of a stamping tool similar eggs according to FIG. 4 produced has been.

! • "Fig. 7 centering the embossing tool the plate.

F'ig. S another.'s switching element, which consists of

jfvvci Plntlen is formed by means of an embossing The Suömungsmitielkanal 7 can be rectilinear and. '

Tool according to FIG. 4 are embossed or have curved sections. His Ouer-

Fig. ¹ ) a switching element with tight tolerances sectional shape can be semi-oval or square or also

Resistors and a matched filter circuit, any other configuration according to the desired

Fig. IO another embodiment of the Sehaltele- 5 ton operation of the fluid-driven

Nienies according to Fig. H, have circuit.

FIG. II shows a possible assembly of several FIGS. 4 another embossing tool is shown

Quick reminder after the discovery. As a defining part, this consists of one

12 shows another embodiment of a wire 15 of hardened or non-hardened knee

Switching element with two Kunalknrigurationen. io lenstoffstahl or another equivalent

The fluid material shown in Fig. 1 and 2, the cross-section and configuration of the

operated logic switching element consists in known to be embossed in at least one of the plates

gate way of two plates 1 and 2, which correspond to over-fluid channel,

placed on top of each other (Fig. 2) and by suitable Mill ·. ·! This wire 15 is placed on the plate 2 and

be connected, such as b. then pressed into the plate 2 by means of an adhesive 3 15 by means of a press,

and / or by screws 4 or brackets. and possibly with interposition

The PIaIIe 1 has two parallel and glntte Ohcr- another! Plate In. which can be just as tough

! laugh, of which the surface 5 as the contact surface> λ ie the drain 15 or softer v, ie the plate 2.

for the power 6 the other tarpaulin 2 serves. In the If the tarpaulin 16 sn hard i * · 'ivie the wire 15.

Surface 6 (inner surface of the plane) of the second plate 2 20, the latter only penetrates into the plate 2 and impresses there

is! a branching fluid channel 7 with a Sirömungsmiitclkanal 7 with straight walls

Li.ilbkreislörmigem Ouersehnitt formed, with and a testicle corresponding to animal round horrn of the

tlie canal line surface is perfectly smooth. After wire. 15 off. The thus embossed plate 2 is in

the juxtaposition of the dented panels 1 and 2 this: Case with a non-represented panel J -

(Hg. 2) fig.-t the air flow medium channel 7 covers a 25, so that the in F i g. 5 shown Sehaltele-

Kanalabschnittl with a F.ing; iiig (or exit) 8 ment arises. This procedure isl in particular

and two outlets (or outlets) 9. suitable for manufacture; of circuits that

In l · i g. .1 is a stamping tool for the fin- an the printed circuits of F.lektrolechnik

characterize the fluid medium shown in FIG. 1 and also have similar advantages. Fine

Comparable in the surface 6 of a crude plate 2 channel 7 a ⁿ such printed circuit strömungsmittel-

iindividual. This embossing tool (stamp) circulating circuit is shown in FIG. 6 illustrates.

IaBl an embossing part 12 (die) made of hardness- This circuit is formed by a plate 20

(cm carbon steel or some other material, with channels 23 in the contact area 22. the two

which is harder than the material of plate 2. The or more Ahm hml.isiell 27 of the! mat together

Flat surface 13 of this matrix contributes to connect 35. By merging with a / wide

plate 21 contains iran inside reads so formed

liabenen Kirner 14 (embossed profile), whereby this embossed switching element has a configuration of different

profile in the present exemplary embodiment, the shape of which Oh carry channels. These channels can

of a Y. -.op, on the outside by drilling holes 24

For embossing the fluid channel 7 ge 4 ″ in the lower or upper PIaMe in the area dei

measured Fig. 1 and 2, it is sufficient. dcv. Part 12 flat accessible on connection points of the Dberlragungskanälc

»Leave unprocessed plate 2 to be placed and then made using. Other channels, such as B. the channel

t'iuer sufficiently vigorous press tlie die on 25th extend to the edge of the plate and

«Lic plate to depress. The body 14 is driimt from the outside through a bore 26 in animal

At the same time, it enters the valley and -, dips, or displaces 15 rope surface of the shell accessible. Fin

ilen material tier plate. Since this is a completely logical circuit made up of fluid-operated

«.

iusuated fluid channel 7 completely tcs with - printed circuit "put together

flat. grazing, thereby animal assembly of the whole

The plate 1 can be made of any material 50 circles in a systematically ordered manner consist, be it of the same material as tlie is. as with printed circuits in the Flcktrol'lalte 2 with the imprinted fluid technology. The embossing wires can be shaped by hand lanal 7. tlie, however, from a less harsh measure. To prevent them from getting started material than the stamping tool, be it the stamping unit, the ends 30 can be moved made of a different material. For an embossing tool 55 insert the wires into the back bores 31 of the plate. Hardened carbon steel stuff can be found in Fig. 1. 7 can be seen. So this procedure is the plate copper, aluminum. Brass, plastic extremely versatile and required practical use. Aluminum is particularly beneficial. no tools whatsoever. Hence it is especially for because it withstands high temperatures, because it is the production of prototypes and small quantities is light and relatively stiff to allow for the deformations 60 of "printed circuits" according to FIG to withstand use, and yet suitable.

sufficiently deformable to permit problem-free pre- When the plate 16 for pressing in the wire to enable. If you put a metallic 15 (Fig. 4) in the plate 21 of the same material Plate used, then you can see that there is like this, the wire 15 penetrates each to half of the compressed metallic material in each of the plates. and you get in a finer structure follows the cold deformation - in this case the switching shown in Fig. 8, whereby the inner surface of the fluid element in which the two plates 2 and 16 spicgelkanal 7 is made even smoother. have symmetrical imprints. The channel

I 918 081

inside the switch element has exactly the same shape as the wire 15. If the contact surfaces of the two plates are pressed against one another very strongly, the tightness of the switch element is particularly high. This method is particularly suitable for the production of switching elements that serve as flow resistance for a fluid. Such resistor elements are used in conjunction with other configurations to form circuits similar to electronic circuits that include, among other things, one or more resistors. These resistance elements consist of two plates attached to one another, which form a channel section of constant cross-sectional shape.

The resistance must be as linear as possible. d. H. that the ratio of the pressure difference between the inlet and outlet to the throughflow / fluid as constant as possible and in It must be possible to determine the narrowest possible tolerances. In order to achieve good linearity, the flow must of the fluid must be laminar. So any turbulence is to be avoided, such as R. through Bends, obstacles. Constrictions. Surface roughness inside the duct, etc. So a straight channel with is ideal constant cross-sectional shape. However, so that this channel has a sufficient resistance value. it must be very narrow compared to its length. Then the resistance value in acceptable To keep tolerance limits, the tolerance limits for the wire diameter and fin the Surface roughness can be kept small in the same ratio.

The wire drawing technique offers the possibility. Very small diameter wires and with very to deliver high manufacturing tolerances. A manufacturing tolerance of 0.005 mm is quite normal. The wires are manufactured in large quantities today, and are relatively cheap. Further, when these wires are wet drawn, they are extremely smooth, so that a given Resistance value can be achieved more easily through a long smooth channel than through a shorter and rougher canal. This results in the best conditions for linearity. and it is more likely to stay within the given tolerances. This is how it works. by simply stamping hardened carbon V Φ

steel wire (0.65Vo C.

0.5 mm. length

42 mm) between two smooth aluminum plates that are between 22.7 g · see 'cm' ¹ ± 5 ⁰ Zo and 27.80 g · sec / cm "· ± 5 ° ο, if the pressure difference between the inlet and the Output is between 600 g / cm ² and 1000 g / cm ^5. This results in a curve with a relatively linear course and within acceptable tolerances between these limits in its center there is an expansion 41 which acts as a fluid capacitance. This configuration is equivalent to an electrical T-filter with two resistors connected in series and a capacitor connected in parallel. A third resistor is formed by several very fine channels 45, 46 and 47, This configuration has the advantage over a single channel with a larger cross section that the length: diameter ratio is greater for each channel, ie there ß the pressure can be very high without causing turbulence. In general, the advantage of channels with a very small cross section is that, among other things, the risk of turbulence formation is largely eliminated. At the same time, there is the possibility of forming resistances with a greater value by building bends in the channel without these bends in which turbulent flows could arise, whereby the linearity would be severely impaired. Such a fluid resistance 48, which is formed from a fine channel with several turns. is also in FIG. 9 shown. In the switching ducts, which are not resistors, it can also be advantageous to largely avoid the formation of turbulence while maintaining high pressures. The formation of the channel configurations in the embossing process by means of wires provides a particularly favorable solution here. For switching elements according to FIG. 9, ie for those switching elements in which channel configurations are embossed in both plates, it is essential that the two channel configurations are

c! 5 Put the panels together to match perfectly. One can do this by a perfect coincidence of the side surfaces of the two plates achieve or with the help of centric profiles. how sitin Fig. K) in the form of centering ribs 32 and Centering grooves 33 are indicated on or in the surfaces 5 and 6 of the plates. When the wire is 15 / wipe the two plates is clamped. you can also center holes in the two plates attach through this before you detach the plates from each other again to get the hard Take out wire 15. When assembling these two plates you can then go through them Centering holes Insert centering pins of the same diameter. Of course you can too

i "the" printed circuit "according to FIG. 6 after this Establish method. In this case the two plates 20 and 21 correspond to one another Channel configurations.

The embossing process is also applicable fiii the manufacture of any logic switching element. this is a more complex configuration, ζ. Β several and-. Or-, bistable and similar scarf has services that are connected to one another by transference channels. This configurator

can either be stamped with a single die or by inserting one or more hard ones suitable stamping bodies, which are pressed between two plates made of a deformable material You can put the configurations into the plate at the same time

memorize or one after the other. You can get between the platters. as shown in the drawings, see express simple elementary circuits. A logic circuit would then be formed by the Assembly of several in series and / or in parallel

(Fig. 11) switched switching elements. Between However, two disks can also have a logic circuit integrated into them. The· has the advantage that the connecting channels between see the switching elements by impressing voi

Steel wires with a very small diameter can be stamped out, which makes it necessary! Volume of these channels is significantly reduced and at the same time a good transfer ratio fii

high frequency signals is guaranteed. The operating frequency of such a circuit can be increased very much. For this purpose one must use wires as smooth as possible, such as can be obtained by wet aiming of wires, a technique which is well known in wire drawing. If necessary, amplifiers must be built into the logic circuit in order to compensate for the resistance effect of the connecting lines.
As illustrated in FIG. 12, in a

single plate in a very simple way to form several independent channels. In the present case if the switching element then has two independent channels, but these two channels could also have the configuration of much more complex circles. The connection of the channels can, as in F i g. 6 indicated with the bore 26, done odei from the side surface of the Schaltelementcs ago through holes in one plate or in both

ίο plates.

1 sheet of drawings

Claims (4)

Paiciit entitlements ·: 1. Method of making fluid flow lines Circuit iinil components with at least two closely spaced plates with fluid channels that are in at least one of the facing plate inner surfaces as wells by means of a Stamps are pressed in, thereby gckcnη-marks, that in the existing of inelastic material with plastic deformability Plates are embossed into the fluid channels. 2. Strüiruingsmittclbctrichcncs switching and Component produced by the method according to claim I. characterized in that die I'l.itten (I 2. 16. 20. 21) a'us metal, in particular Aluminum. 3. Device for implementation: ties Verfall- ² »rens according to claim 1, characterized in that the embossing part (12) of the stamp .ms an ilen Stri'muingsmitielkanäle (7) correspondingly raised body (! 4) exists between a plate to be embossed (2) and a thickness plate or between two plates to be embossed (2. 16) is arranged. 4. Apparatus according to claim 3 in particular to produce fluids. characterized in that the formative Part of the stamp of a wire (15). preferably a wet-drawn wire is ;.