SU376021A1 - Device for washing hydrotype matrixes - Google Patents

Description

one

The invention relates to the field of cinema engineering and can be used to replicate color films.

Devices for washing hydrotype matrices are known, comprising a control panel and an actuator made in the form of a relay unit and electromagnetic valves.

However, in such devices, the setting of the washing mode is carried out only non-concretively before each individual matrix enters the hydrotyping mash washing unit. This requires careful monitoring of the passage of the dies in the machine and every 8-9 min. Of switching the washing modes.

The purpose of the invention is to simplify the operation of the device and improve the quality of washing.

This is achieved by connecting a mode code sensor to the executive mechanism via a bounce reset switch: n: -relay electronic switch, the counting input of which is connected to the mode code sensor via a coincidence circuit controlled by a bistable trigger, made in associated with each other analog-to-digital converter and modern circuits. Corrector input

through the control panel connected to all channels of the second electronic switch.

The drawing shows a block diagram of the device.

The output of sensor 1 of the matrix code, consisting of a photoelectric reading element and a rectangular pulse generator with an inverter, is connected, on the one hand, to a 2-relay switch 2, made on two transistors, and, on the other, to the input of the electronic switch 3 matrices, containing multi-trigger trigger and electronic keys. Commentator 3 through the console 4 controls the mode of washing is connected to the corrector 5 modes of washing. The output of the KPP relay 2 is connected to the inputs of the switch 3, the equalizer 5, the bistable trigger 6 n of the electronic switch 7 of the washing modes.

The output of the sensor 8 washing modes, containing the same elements as the sensor 1, except the inverter, on the one hand, through the equalizer 5 is connected to the second input of the trigger 6, the output of which is connected to one of the inputs of the circuit 9 coincidence, and to the second input of this coincidence circuit, the output of which through the switch 7 is connected with the actuating mechanism 10.

The device works as follows.

As a matrix approaches a washing node, its number is first read and the matrix code sensor 1 produces a corresponding number of square pulses. These pulses come simultaneously to the KIPP-relay 2 and the electronic switch 3 matrix. From the first impulse received from sensor 1, the kiprele turns into the excited state and produces a steep voltage drop, which resets the entire circuit of the automaton to its initial state. As a result, the actuator 10 is set to zero mode, corresponding to a complete disconnection in the sex nozzles supplying water, and the electronic switch 3 to a position where the voltage of the voltage divider corresponding to the first channel is supplied to the reference input of the comparator of the corrector 5. matrices. Since the voltage on the comparison circuit is supplied for each matrix through its own channel, as the number of impulses from sensor 1 increases, the voltages from other dividers are connected to the reference input of the comparison circuit, and the former are disconnected. The magnitude of the output voltage of each divider is set by turning the mode correction knob on the remote control 4 controls.

After the whole matrix number codogram passes through sensor 1, the electronic switch is set to the position at which the excited channel corresponding to this matrix remains, and a voltage is set at the reference input of the comparison circuit, which determines the correction of the mode number required for washing this matrix. In this case, the kip-relay 2 remains in the excited state all the time and does not react to the pulses coming from the sensor 1, and the electronic switch 7 of the modes is in the zero position, so that the actuator 10 does not supply water to the nozzles.

When the codogram passes through the mode code sensor 8, the rectangular pulses simultaneously arrive at the analog-to-digital converter of the equalizer 5 washing modes and one of the inputs of the coincidence circuit 9. As a result, a stepwise increasing voltage is applied to the signal input of the comparator comparator corrector 5. When the magnitude

this voltage exceeds the voltage at the reference input, the comparator outputs a steep voltage drop, a tilting trigger. At the same time, the unlocking potential arrives at the second input of circuit 9 of coincidence and the pulses from the mode code sensor begin to pass to the start of the electronic switchboard of 7 modes. All previous pulses are subtracted.

from the sequence that corresponds to the mode number of the matrix. Therefore, to effect a positive correction, it is necessary that the codogram of the mode number contains an excess

the number of labels, the pulses from which, if necessary, can be subtracted. If we subtract only the extra pulses, then the electronic switch of the washing mode will receive a signal without correction. With

subtracting a smaller number of pulses, the correction is positive, and when subtracting a larger amount, it is negative. After the whole codogram of the mode is applied through sensor 1, the electronic switch 7 of the modes is set to positive. It is the time when the channel of the actuator 10, which corresponds to the washing mode of the matrix, taking into account the correction of its number, is excited, and water from the required number of nozzles is supplied to the matrix. When passing the codograms of the following matrix through sensors 1 and 8, everything repeats, and the mode is set according to the codes and the position of the switches on the remote control 4.

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Claims (1)

Invention Formula Hydrotype washing device matrices containing a control panel and an actuator made in the form of a relay unit and electromagnetic valves, characterized in that, in order to simplify operation and improve the quality of washing, the sensor of the mode code is connected to the actuator via an electronic switch that is reset connected to code sensor mode through a matching circuit controlled by a bistable trigger connected to a washing mode corrector made in the form of an analog-digital converter and a comparison circuit connected to each other, and the input of the corrector is connected to all channels of the second electronic switch through the control panel.