SU798769A1 - Pneumatic logic module - Google Patents

Description

The invention relates to automation, in particular, to pneumatic control devices used in pneumatic automation circuits. Pneumatic slide valves are known that can be used as logic modules. The closest to the present invention is a logic module containing two pneumatic distributors, each of which has a spring chamber, a control chamber, three input and two output channels, input channels and a control chamber of the first stage, and the output channels are The second pneumatic distributor are outputs of module 2. The disadvantages of the known modules include the fact that at each output the entire set of logical functions of two variables is not realized and when using two outputs, a small number of systems of functions is realized. The purpose of the invention is to expand the functional capabilities of the pneumatic logic module until it implements the entire set of logical functions of two variables from each output. The goal is achieved by the fact that one output channel of the first pneumatic distributor, in the initial position communicated with the middle input channel of this pneumatic distributor, is connected to the control chamber of the second pneumatic distributor, the other output channel of the first pneumatic distributor is connected to the spring chamber of the second pneumatic distributor, and the spring of the first pneumatic distributor, and the spring of the first pneumatic distributor the channels of the second pneumatic distributor are the inputs of the module. The drawing shows a diagram of the proposed pneumatic logic module, which contains two spool pneumatic distributors 1 and 2, each of which has a spring chamber 3, a control chamber 4, three input channels 5,6 and 7 and two output channels 8 and 9. Chambers 4 control pneumatic distributor is the input of the module Xi, the input channels 5,6 and 7 of the pneumatic distributors 1 and 2 are the inputs of the modules X X, X, XJ, and XQ respectively, the n - / supper chamber 3 of the pneumatic distributor 1 is the input of the module XQ. The output channels 8 and 9 of the pneumatic distributor 2 are the inputs of the Z 3 modules, respectively. The output channel 8 of the distributor 1 is connected to the chamber 4 of the control of the pneumatic distributor 2, the output channel 9 of the pneumatic distributor 1 is connected to the spring chamber 3 of the pneumatic distributor 2. The module works as follows.

To the inputs X Xd of the pneumatic logic module, input signals Hu - X or constants or O are given, depending on the function implemented by the module logic.

The implementation of the logical functions of two variables by the pneumatic logic module is presented in the table.

X,

X,

X, + X,

 x, x

 X, t X,

 X, X

 x x

 X, t- Xy

 X, + X

 X, X

-1 b /

 Ll tl "

 X x

 A j t -11.

 x x. x x x x + x x

This embodiment of the pneumatic logic module allows reducing the number of logic modules in pneumatic control systems during their implementation, reducing the cost of the systems, simplifying installation, commissioning and operation.

0

0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0

1 1 1 1 r 1

one

one

0 0 1

0 0

one

x

0

X.4 0

eleven

one

0

0

0 0 Xi

0

four

eleven

x

one

0 0

one

1 1 1 1 1 1

eleven

eleven

lz

0 0 0 0

0 0

Xa

one

 the invention

A pneumatic logic module containing two pneumatic distributors, each of which has a spring chamber, a control chamber, three inlet ports and two outlets, inlets

The channels and control chamber of the first pneumatic distributor are module inputs, and the output channels of the third pneumatic distributor are module outputs, characterized in that, in order to expand the functional capabilities of the module, one output channel of the first pneumatic valve is initially connected to the central inlet channel of the pneumatic valve is connected to the control chamber of the second pneumatic distributor, another output channel of the first pneumatic distributor is connected with the spring chamber of the second pneumatic distributor Ithel / and the spring chamber of the first valves and the second pneumatic input channels are input module.

Sources of information taken into account in the examination

1. Pneumatic control systems for machines, presses and other machines. M., NIIMASH, 1971, p. 95

0

2. USSR Author's Certificate for Application No. 2432832/24,

cl. G 06 D 1/00, 1976 (prototype).

Claims (1)

Claim A pneumatic logic module containing two pneumatic distributors, each of which has a spring chamber, a control chamber, three input and two output channels, input channels and a control chamber of the first pneumatic distributor are the module inputs, and the output channels of the second pneumatic distributor are the module outputs, characterized in that, in order to expand the functionality of the module, one output channel of the first pneumatic valve, in the initial position communicated with the middle input channel of this pneumor predelitelya connected to the second camera control valve, another output channel of the first distributor pneumatic spring chamber is connected with the second valve, and the first chamber of the pneumatic spring and the second input channels are pneumatic distributor unit inputs.