SU723524A1 - Device for control of liquid metering-out process - Google Patents

Description

I

The invention relates to devices for controlling the dosed supply of liquid in the process equipment, and specifically for the dosed supply of lubricating fluid in the metal-cutting and pressing equipment. A device for programmatically controlling the dispensed liquid supply is known, which contains a programmer, a pressure sensor, an actuator, a manual pumping pump, and a converter. In such a device, the start-up to the automatic mode is performed after preliminary manual pumping of the lubrication channels and a doggle actuation of the sensor. The activation of the actuator is carried out according to a program from a programmer, which is controlled by a converter of proper operation, triggered by sensor 1. The device lack is the complexity of the programmer and the lack of reliability of the circuit associated with the inclusion and disconnection of the programmer.

The closest to the invention is a device containing a successor) Compound Heinibie Dagplc, a converter, a first prohibition element, a memory element and an output switch, a program block, a multivibrator, an actuator and a first operation mode switch 2. The actuator is controlled by a program block through converter, which eliminates the above disadvantages.

However, it has insufficient accuracy and requires considerable time to start up due to the need for manual pumping of lubrication channels, as well as the difficulty of rebuilding the programmer caused by the need to change the cycle of operation of the device as wear and lapping the rubbing surfaces of the process equipment.

The purpose of the invention is to increase the speed and accuracy of the device.

The goal is achieved in that it contains a trigger element, a second inhibition element, OR, AND elements and a second operation mode switch, with the first output of the program block connected to the first inhibition element via the first operation mode switch. the second output of the program block is connected to the input of the trigger element, the first output of the trigger element is connected to the first input of the element I, the output of which is connected to the second input of the memory element, the second output of the trigger element is connected to the input of the program block and the second input of the converter, the output of the converter is connected to the second the input element And through the first mode switch with the first input of the second prohibition element, the output of which is connected to the actuator, the multivibrator j is connected to the first input by the element OR-coagulant, to the second input of which is connected to the output of the second switch operation, and the output of OR element is connected with the second input of the second element prohibition. In the drawing; e is a schematic diagram of a device for controlling the lubrication system. The device consists of software block 1, sensor 2, converter 3, multivibrator 4, memory element 5, drive 6, first 7 prohibition element, output switch 8, element 9, element OR 10, element 11 of preparation of a dikle, second prohibition 12, actuator 13, first 14 mode selector, second mode selector 15, start element 16, switch 17, amplifier 18. Actuator 13 consists of amplifiers The actuator 18 and the actuator 6, the start element 16 consists of a cycle preparation element 11 and button equipment. The first operation mode switch 14 has two positions: operation and pumping. By means of a second mode switch 15, the device can generate commands for lubricating the rubbing surfaces in pulsed or continuous modes. The device works as follows. The signal from the multivibrator 4, in the absence of a inhibit signal from the converter 3, immediately after the power is turned on actuates the actuator 13. The pump turns on, which delivers lubricant to the system until sensor 2. triggers. and the converter 3 at the output of the element And 9 appears a signal that sets the memory device 5 to the working position and the output switch 8 enables the equipment to work. The software unit 1 connected to the preparation element 11, after a time tj from the beginning of the cycle, outputs a signal through the first operation mode switch 14 and the first interdiction element 7 to the memory element 5. The command is not reset. After a period of time t2, determined by the norm of the modulus; 1Ki, the element 11 of the cycle preparation cycle 11 is triggered. In this case, the converter 3 and the software block 1 are prepared for a new cycle. In the event of a malfunction of the lubrication system, the sensor 2 fails to function, the signal from the converter 3 is absent, software block 1 resets the faulty memory element 5, and output switch 8 signals malfunctioning and prohibits the equipment from operating. Additional sensors and button equipment 17 can be connected to point A. To pump the system and determine the dosing cycle time, the first re- switch of operation mode 14 is set to pumping, which prevents the actuator 13 from stopping after sensor 2 is activated and memory memory is reset. 5 from the program block 1. The construction of a lubrication system according to the proposed scheme makes it possible to create an electronic instrument for controlling the lubricant, and the actuator can be a pump as a constant And cyclic action. The time required for setting up and turning on the lubrication system in operation is greatly reduced, the accuracy of operation of the device and control of the lubrication system increases. A device for controlling the dispensing of a liquid, containing a series-connected sensor, converter, first prohibition element, memory element and output switch, program block, multivibrator, actuator, mechanism, and first An operation mode switch, characterized in that, in order to increase speed and accuracy, it contains a trigger element, a second prohibition element, OR elements, and a second operation mode switch, the first output of the program block being connected to the first element The prohibition through the first mode switch, the second output of the program block is connected to the input of the trigger element, the first output of the trigger element is connected to the first input of the And element, the output of which is connected to the second input of the memory element, the second output of the startup element is connected to the input of the program block and the second the converter input, the converter output is connected to the second input of the element I and through the first operation mode switch to the first input of the second prohibition element, the output of which is connected to the executive The multivibrator is connected to the first input of the OR element, with the second input of which is connected to the output of the second mode switch, and the output of the element

57235246

OR connected to the second entrance of the second e-operation. Nicholas experimental plant ban ban.

Sources of information taken into account during the examination 1. Devices such as WCC, SSCP for control of lubrication systems. Executing Systems Guide, 1972.

2. Lubrication systems of aggregate machines and automatic lines. Review of domestic 5 and foreign equipment NIIMASH. M., 1973, p. 43-45 (prototype).

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Claims (1)

Claim A device for controlling the dosing of liquid, comprising a sensor, a converter, a first inhibit element, a memory element and an output switch, a program unit, a multivibrator, an actuator and a first operating mode switch, characterized in that, in order to increase speed and accuracy, it contains a start element, a second inhibit element, OR elements, and a second mode switch, the first output of the program unit being connected to the first inhibit element through the first operating mode switch, the second output of the program unit is connected to the input of the start-up element, the first output of the start-up element is connected to the first input of the And element, the output of which is connected to the second input of the memory element, the second output of the start-up element is connected to the input of the program unit and the second input of the converter, the output of the converter connected to the second input of the And element and through the first switch of the operation mode with the first input of the second inhibit element, the output of which is connected to the actuator, the multivibrator is connected the first input of the OR gate, the second input of which is connected to the output of the second operation mode switch, and the output element OR connected to the second input of the second prohibition element.