SU405021A1 - DIGITAL MEASURING WIDTH OF MOVING MATERIALS - Google Patents

Description

one

The present invention relates to the field of digital measuring equipment and relates to digital gauges for moving materials, such as tape, for example.

IZVesten digital gauge of the width of moving materials, belt band impregnator, containing two photocell lines, two corresponding illuminators, pulse generator, pulse distributor for interrogating photo cells. In these lines, the input of which is connected to the pulse generator through the element I, Connecting with T control rigger, counter the width, the OR element, whose inputs are connected to the outputs of the photocell lines, and the output with the counter, is set to the base distance, set at the input of the counter width, yhodnoy blo.k 11 nndika.tsin unit width counter.

The proposed meter differs from the well-known in that it sleeps (bhtz two triggers for detecting the displacement of a material relative to its axis of mixing, connected to their outputs. A mismatch decoder, output: the clalan of this decimator, a mixing counter with an output block, two latching triggers, one of the settings. the input two-input valves of the installation “1, each triggering a bias for the bias of the installation of the input“ is connected to the input of the corresponding line of photoelectric cells, and the input of the installation “O - with the output of the The distributor, for each valve of the INSTALLATION "1 latching trigger, is offset 1, one input is connected to the output of the mismatch decoder's output, and the other input is connected to the output of the appropriate offset trigger recognition counter, the input of the displacement counter is set to a placeframe area; output element "OR.

This makes it possible to extend the functionality of the meter by determining the magnitude of Il and directing the displacement of the material from the axis of its nondisplacement.

In the drawing there is a block diagram of the proposed meter.

The meter contains two lines of 1, 2 photocells mounted at a base distance from one another along the edges of the cross section.

section and material 3, parasitized in the longitudinal direction (perpendicular to its cross section), two illuminators 4, 5 lines}, 2, generator 6 pulses, predetermined spruce 7 pulses for interrogating photo cells in

Line 1/2, element "AND 8, trigger 9 control, counter 10, width, element," OR 11, unit adjuster 12 of the base distance, installed at the input of counter 10. v1 hrdnaya block 13 and block 14 of the counter display 10, two triggers 15 , 16 material displacement detection

 relative to its axis of movement, connected to the outputs of the flip-flops 15, 16, the decoder 17 mismatches with the output valve 18, the counter 19 displacement with the output unit 20, two triggers 21, 22 fixing the displacement level with the output two-input valves 23, 24 “1.

The decoder 17 "mismatch-and made, for example, of the elements“ And 25, 26 and the element “OR 27.

The input of the distributor 7 is connected to the generator 6 through the element “AND 8 connected to the trigger 9. The inputs of the element“ OR 11 are connected to the outputs of the rulers /, 2, and the output to the input of the counter 10 and the pulse input of the valve 18. Each trigger 15, 16 the installation input “il is connected to the output of the corresponding line I, 2, and the installation input“ O is connected to the outlet of the distributor 7. Each valve 23, 24 has one input connected to the output of valve 18, and the other input to the output of the corresponding trigger 15, 16. The counting input of the counter 19 is connected to the outlet of the valve 18.

Signal 28 serves to control the issuance of a code from block 13, and signal 29 to control the issuance of a code from block 20. Signal 30 serves to return to "O counter 19, flip-flops 21, 22 and to install" in trigger 9. Before starting the measurement in the counter 10 is recorded 31 values of the base distance set by preset 12. Triggers 9, 15, 16 set "O, for example, at the end of the previous measurement by a signal from the output of the distributor 7. Then the meter turns on with a signal 30 setting" O in counter 19, flip-flops 21, 22 and flip-flop 9. As a result of this trigger The ep 9 opens the element “AND 8, which transmits pulses from the generator 6 to the open helper 7. With the arrival of each pulley at its input, the distributor 7 approves the next photocell in the rulers 1, 2. The interrogation of the photo cells in the castars is performed by the distributor 7 (software the queue in the direction of the axis of movement of the material 3, and the first photocell from one ruler, for example ruler 1, is polled first, and then another element from another ruler, for example ruler 2 is polled. rulers / 2 perpendicular to the plane of its cross sechen.i (perpendicular to the drawing plookosti). During this movement, the edges of the material 3 overlap part of the photo cells of the rulers /, 2. If the next photocell of the rulers 1, 2 aplicated by the distributor 7 is dark, then the output of the ruler / or 2, in which this photo cell is installed, appears impulse through the element "OR 11 n, and the input of the counter 10 and the input of the valve 18. If the photocell is illuminated, then a pulse is not generated at the output | de co. In the counter 10, the sum of the number of pulses arriving through the element "OR //,

and base distance corresponding to the measured width of the material. This sum is indicated by block 14 and is read from counter 10 via block 13 by signal 13. Determining the magnitude and direction of displacement of the material 3 relative to its axis of movement is carried out as follows. The first impulse arising at the output of the li1 (ki 1 will set “1 in trigger 15, and the first impulse arising at the output of the ruler 2 will set“ b Ü to the trigger 16. The first to the state “1” is that of the triggers 15,16, which Associated with a ruler / or 2, towards which the material 3 is displaced from its axis of displacement. With the indicated displacement, for some time during regular polling of the line distributor 7 the triggers 15, 16 are in different states: one is in the state 1, another in the state of “O. With such

combinations of the states of the trigger 15, 16, the decoder / 7 mismatch allows the valve to work. valve 18. At the same time, that of the trigger 15, 16, which is in the state "1, permits the operation of the corresponding valve 23, 24. It pulses arising at the output of ruler 1 or 2, towards which the material 3 is displaced, through the element OR // and the valve 18 enters counter 19 and sets to state "1 one of the flip-flops 21, 22 connected through layer I , single valve 23 or 24 with that of the trigger 15, 16, which is in the state of "ib. When both the flip-flops 15, 16 appear in the state "1, the decipher 17 closes the valve 18, and the flow of pulses IB to the counter 19 and the valves 23, 24 stops. The number of pulses counted by the counter 19 corresponds to the magnitude of the displacement. The offset code is read from counter 19 by the signal 29 through block 20. The state "1

the trigger 21 fixes that the material 3 is shifted towards the ruler 1, i.e. in this case, to the left of its axis of movement.

The state "1 flip-flop 22 fixes that material 3 is shifted towards the ruler 2, i.e.

to the right of its axis of movement. At the end of the survey of all photocells of lines 1, 2, the distributor 7 returns to “About triggers 9, 15, 16.

Subject invention

Digital moving-materials width meter, containing two photocell lines, two corresponding illuminators, pulse generator, pulse distributor for interrogating photo cells in the indicated lines, whose input is connected to the pulse generator through the “And” element connected to the trigger trigger, width counter, the element “OR, whose inputs are connected to the outputs of the photocell lines, and the output is with a width counter, a reference distance adjuster installed at the input of the width counter, an output block and an INDECK block and the width of the counter, characterized in that.

in order to expand its functionality, it is equipped with two triggers for detecting material displacement relative to its axis of movement, connected to their exits by a mismatch decoder, the output valve of this decoder, an offset counter with an output unit, two triggers of bias direction fixation with the two-input inlet valves of the setting "1, for each bias recognition trigger, the installation input “1 is connected to the output

Each valve of the installation "1 trigger triggers" one input connected to the output valve of the mismatch decoder, and the other input to the output valve of the corresponding offset trigger, input of the offset counter connected to the output valve of the decoder inconsistencies, and the pulse input of the latter is connected to the output of the element “OR.