DE1650474A1 - Universal logic element mainly for pneumatic actuation - Google Patents

Description

Dipt rr ^ w ^ eTSUaner monks 1Λ ΟΚί. 1967

Dipl. Ing. Herbert Tischer
Munich office
Munich 2, valley 71

IUGTAR TÜDOII & TTOS AKADtUlA AUTCMATIZILaSI KUiPATO

IBTfiZEI, Budapest (Hungary)

UUIYBRSELLES LOGICAL T ^ fia
MAINLY FOR PNEUMATIC BEOI & PIGüBg

The invention is a universal logic element, mainly door pneumatic actuator, suitable for performing various diverse logical operations, thus advantageously used, for the construction of logical systems;

The system-technical use of the known logical Ifesbran elements when solving control tasks is proportionate cumbersome and complicated, and the junction speed and air permeability are more certain Basic building blocks very limited

According to the aforementioned, the well-known pneumatic

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see three-membrane Äeikontaktrelais, its contacts (valve seats) at each end of the membrane system connecting Rods, individually only for the implementation of two-parametric logical basic functions (OR, UHD, NONE). This is seen from a system-technical point of view, generally not beneficial. In addition, one element is required in the realization of various logical ones Punctures not only the form corresponding to the "YES" link, but also the one between "YES" and "HEIH" links falling auxiliary pressure, which complicates the system construction,

The pneumatic two-membrane two-contact relay, the contacts of which are located within the membrane system, can individually only 1 piece three parametric logical universal fan realize.

There are membrane elements known in which the circuits with the help of membrane-controlled pneumatic Throttles compiled »pressure distributors are made · The system-technical treatment of these is rather cumbersome, after the implementation of even the simplest ones logical! functions several: elements required, also contain the elements, thus also the JEfcrsteme throttle built from them, which increases the functional speed and the air permeability is severely limited. According to the invention, the universal logical element does not have just about all the favorable properties of the previously known elements, it also offers a more general system technology Possible use. Through the appropriate choice of the geometrical dimensions that are decisive for the functioning

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it can namely be achieved that one and the same "element is suitable for the implementation of two different, system-technically well usable logical three-parametric universal functions, in the same way a bistable element often occurring in the logical system, whereby the construction of the structure is by no means more complicated than the usual turns out "If one takes into account the versatile system-technical usability" of the universal element of the invention, furthermore that up to now at least two pieces of the known elements I were required for the construction of a bistable element, it is obvious that this, ς ij. r ~ "type elements to accomplish the implementation of a system for the same determination with significantly fewer elements _r may whereby the reliability and the price of the system is advantageously influenced.

According to the above, the invention relates to such a logical element, in which a six-part room is formed by 3 pieces firmly connected in the axes, force-generating room dividers, furthermore by a partition between the outermost and middle force-generating room dividers, each provided with a passage opening, One of these lines is also available for connection with connection openings or connection openings. Are used for the isolation of the secreted by the partitions adjacent partial spaces expediently W & ise valves such that the same, in relation to the formed around the through-openings valve seats Sehließbcusteine were made provisions to the krsftbildenden room dividers, or the connecting rods, the Kraf;

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"forming room dividers can, for example, membranes, pistons, Bullet or some combination of these. The closing valves can be between the partitions and the middle force-generating room divider, or between the partition walls and the two outer force-generating room dividers be,

Further details of the universal logical element according to the invention are explained in more detail on the basis of exemplary embodiments with reference to the drawing.

1 shows an exemplary embodiment of the logic element according to the invention, in which the closing valves are attached between the central membranes and the two partitions j

Fig. 2 shows another embodiment in which the Closing valves between the two outer membranes and the partitions

3 shows a circuit of the logic element which was used to implement the logic function χ = a b ο

4 shows a circuit which is used to implement the logical function χ = b (a + c).

Fig. 5 shows a circuit which is used to implement a bistable element *

Example 1 (Fig. 1) divides the interior of house 1 in its central axis initially a membrane system that is firmly connected to rods 2 and consists of membranes 3, 4 and 5, furthermore the partitions 6 and 7 accommodated between the outer and middle membranes & those with connection openings 8, 9 »1Oy 11» 12 and 13 provided rooms 14, 15, 16,

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17 »18 and 19β The valve seats 20 and 21 erected on the partitions 6 and 7 and surrounding the connecting rod 2 close or block with the aid of the appropriately shaped closing elements 22 and 23 according to the logical state of the input connections resulting membrane position according to the trees 15 and 16, as well as 17 and 18 such that 22 the closure member shuts off and upon opening of the closure member 23 reversed "Accordingly, appears at the output terminal i of a logical puncture of the element corresponding logical state (pressure). The impact of the closing elements 22 and 23 on the valve seats 20 and 21 limits the movement of the membrane system as intended.

The embodiment example apart from the connection openings is appropriately shown in a cylindrically symmetrical design,

Example 2 (Mg. 2). The valve seats 24 and 25 of the Partitions 6 and 7 can also be arranged according to the invention be that this compared to the membranes 3 and 5 to come and through the attached to the membranes 3 and 5 Closing elements 26 and 27 depending on the position of the force-forming room-dividing element system, a connection, or »Carry out a separation of rooms 15 and 16 or 17 and 18.

With regard to the application, it can be mentioned, for example, that if the structural and functional aspects are taken into account, the area dimensions determining the functioning are appropriately chosen so that, for example, F, = F ^ = Fe J F ₂₀ = Fp ₁

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(weave! B ,, 5V and "F ₁ -CJiJB. -effective area of the membrane 3» 4 and _{-5 * - Jr 20} ^ -UnCL Fg ^ ^a ^ ^{he means} the effective area of the valve seat), then this element can dem the previous ones, depending on which connections are used as inputs, and which two connections are combined for the output, or which connection is responsible for venting into the atmosphere, can be used independently for the implementation of the following logical functions:

1.) χ = abc (Fig _# 3)

2,) χ = b (a + cO (Fig. 4)

3,) bistable element (Fig, 5) where: χ the logical output variable

a, b and c mean the logical input variables »

In the bistable element, a - the delete signal} c - the write signal; χ - the memorized signal | b - but the feed pressure *

If other area ratios are chosen or several elements are coupled, then of course other or more complicated functional associations that differ from the above are produced «,

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Claims (1)

Munich y aiii MW 1, Universal logical ^ element, in particular for pneumatic actuation, which has a tree with at least one connection opening divided into six parts by three firmly connected force-forming room dividers, as well as by two partition walls with passage openings, whereby to close off the neighboring ones separated by the partition walls ¹ rooms shut-off devices, advantageously valves are provided in such a way that the % Partitions against the valve seats formed around the passage opening on the surfaces of the room dividers or on the connecting rods the same, for this purpose shaped closing elements are attached, characterized in that one after the other, the middle one, of the three room dividers between two partitions, each with a passage opening in this way is arranged that thereby a space divided into four parts between the two outer force-forming space dividers is created » 2 * Universal logical element according to claim 1, characterized in that the valve seats (20, 21) formed on the partition walls (6, 7) are opposite the closing elements (22, 23) offset on both sides of the central room divider (22) are arranged » 3. Universal logic element according to claim 1, characterized in that the to Partitions (6, 7) shaped valve seats (24, 25) opposite the two opposite inner sides ~ ⁷ ~ 109820/0353 the outer room divider (5> »5) attached closing elements (26, 27) are arranged » 4 _# Universal logic element according to claim 1 to 3 »characterized in that oil's force-forming space divider membrane ^ or piston or ball or a combination of these is used. 3AD ORiGiNAL 1 09820/0353 Blank page