SU1498839A1 - Apparatus for monitoring operation of hopper-type textile machine - Google Patents

Abstract

The invention relates to the textile industry. The purpose of the invention is to improve the accuracy of control. The device has fiber level sensors in the bunker and frequencies of rotation of the feeder parts of the machine, according to information from which the performance of the machine is calculated. The performance calculation is carried out by converting a voltage depending on the level of the fiber and the frequency of rotation of the feeder bodies into pulses, followed by their counting and interpretation. The device uses a multiplexer control unit to sequentially determine the performance of similar types of bunker textile machines. 2 Il.

Description

The invention relates to the textile industry and can be applied to the technological equipment of the preparatory departments of the production industry, which has condenser bunker feeding systems in which the productivity of the bunker machine depends on the height of the fiber column in the bunker.

The purpose of the invention is to improve the accuracy of control.

FIG. 1 is a block diagram of the device; in fig. 2 - voltage setting control; in fig. 3 - control unit.

The device consists of a technological machine 1 with a hopper 2. The machine has feeding bodies 3, which are driven in rotation by a 4-speed controller. The filling level h of the bunker 2 is monitored by a level sensor 5, and the frequency w of rotation of the feeder bodies is measured by the sensor 6 of the frequency of rotation of the feeder organs of the machine. The signals of the sensors 5 and 6 are fed to the first and second inputs of the voltage setting device 7, respectively, the signal at the output of the setting device 7 is a function of h and W. Moreover, if one of the parameters (h or c) is equal to zero, the voltage at the output of the setpoint generator 7 is equal to zero. The voltage of the setting device 7 is fed to the generator of 8 pulses, the frequency of the signal at the output of which depends on the control voltage directly proportional to. From the output of the generator 8, the pulses go to the counting input of the counter 9 pulses, the binary-ten code from the output of which is fed to the input of the decoder 10. The register 11 stores

C) 00 00 00

with

information obtained from the decoder 10 at certain points in time,

On the shop scale, there are p technological machines 1, each of which has individual elements 2-11 inclusively. Information from all registers 11 goes to information processing unit 12, which contains multiplexer 13, to the address inputs of which the output of group counter 14 is connected. Sync pulses -the input of the group counter 14 is formed by a two-input element 15, the first input of which is connected to the group generator 16, and the second input is connected to the output of the programmable timer 17. In addition, the output of the timer 17 is connected to a divider 18. The code from the output of g A rup counter 14 is fed to the input of the first group decoder 19. Information from the output of multiplexer 13 through the group register 20 and the second decoder 21 is fed to the diffractor 22. To block the operation of the programmable timer 17, a control unit 23 is provided that generates a reset signal when the information appears in the high order of the group counter 14. Elements 13-23 form an information processing unit 12, the output of which is connected to the R-input of the counter 9 pulses and the E-input of the register 11 of each machine 1.

Unit 7 (Fig. 2) is two keys 24, the outputs of which commute resistors 25. Key management takes place from digital outputs (in code 1-2-4-8) of level sensor 5 and sensor 6 of rotational speed of feeders. - Load resistance 26 receives power from source 27, to identify rexime, at which h O or s O are entered .. two ele. . Shunt load with resistivity 26, if h 0 or co 0.

The control unit 23 (Fig. 3) is made in the form of a logical unit on the elements AND-HE 31 and NOT 32 and E.5-trigger 33.

The device works as follows.

The initial state of the device is the zero state of all counters, registers, and decoders. This state corresponds to the beginning of the shift

After switching on the machines 1 from the level sensors 5 and the rotation frequency 6, the first and second inputs of the setpoint 7 of each machine receive in the binary code information about the current operating status of the equipment. According to this code, the keys 24 switch the resistors 25 so that the current through the load resistance 26 from the source 27 corresponds to the actual values of h or W. If the code from the level sensor 5 changes, the corresponding key 24 produces a re-switching of the resistors

25. The current in the circuit varies. The voltage taken from the load resistance is also changed. 26 It is possible to ensure nonlinearity by selecting the appropriate IM in the manner of resistors 25,

the dependences C (h, u;), or enter the values of h and y with different scale factors. If in the course of the work a situation is created when h О or / ОО О, then at the output — one of the elements OR — NO 28 have a sig

0

five

0

five

0

five

1, which leads to the appearance of 1 at the output of the element OR. 29. Key 30 closes and Uyf, p 0.

The control voltage from the setting device 7 is supplied to the pulse generator 8, the output frequency of which is proportional to the control voltage. The sequence of pulses obtained in this way is determined by the operating time of the equipment, the filling level h of the bunker, and the frequency of rotation of the feeding organs and is produced independently for each technological machine. Each pulse counter 9 represents a binary decimal. counter, the information on the output of which corresponds to the number of 8 pulses passed from the generator. The information of counter 9 is decrypted by the decoder 1Q and in binary code is fed to the input of register 11.

The register stores information at the time of occurrence of signal 1 at the E input, the rest of the time at the output of register 11 there is a zero state, although the estimator 9 of the pulses constantly accumulates information about the operation of the technological machine.

According to this algorithm, the accounting system of products of each machi-1s works, the collection of information from which occurs

by multiplexing using information processing unit 12. Group generator 16 produces pulses with a given frequency. These pulse pulses are sent to the first input of an AND 15 element. If from the output of the programmable timer 17 a single signal arrives at the element 15, then the pulse of the generator 16 appears at the input of the group counter 14. Timer 17 allows polling the registers 11 through various time intervals chosen by the service personnel. The timer is controlled by 15 selecting the frequency of occurrence of a single signal at the timer output.

The timer signal is reset automatically after polling all registers 11 as follows. Group counter 14 has an invoice module equal to the number n of polled machines. Therefore, after counting

Roe fixes the current value of the products produced by this Machine.

In the next step, the code at the output of the group counter 14 is changed, the processable machine is also changing. Its register 11 is blocked and the value of products produced by the second machine 1 is recorded in the chain of blocks 13, 20, 21 and 22.

In the following, the process is repeated. After interrogating all technological machines, programmable timer 17 blocks the group genator 16 and the recording stops until the new value 1 appears at the output of timer 17.

During the shift, K records are made. Dither 18 has a division factor equal to K, and after a period of time corresponding to carrying out K of the considered cycles, at its output there appears one:

n pulses, it returns to zero 25. This signal is sent to the initial state. At the same time, a signal is received from the counter 14 to the input of the NAND 31 logic element, resulting in the appearance of 1 at its output. The trigger 33 is in the zero state. With the arrival of a pulse from the group generator 16, the trigger 33 is transferred, thereby repeating the shape of the input pulse. This impulse, coming on. . the fault input of the timer 1 7 leads to: the appearance of a zero signal at the second input of the AND-15 element. Group generator 16 is blocked.

For the duration of the timer 17, the code at the output of the group counter 14 corresponds to the number of the polled machine. This code goes to the address input of the multiplexer 13, commutes the corresponding register 11 to the group register 20. In addition, through the decoder 19 a single signal is fed to the E-input of the record of that register 11 whose code is on the multiplexer 13. This ensures pulse counter 9, the constancy of information during the reading.

Information from the group register 20 through the decoder 21 is fed to the digitizer 22, which

five

0

five

0

five

Claims (1)

the input of each counter 9 of all technological machines and resets the counters 9 to the zero state. The device is ready for the next change. Invention Formula A device for monitoring the operation of a bunker textile machine, comprising a fiber level sensor in bunker, an output associated with a first input of a voltage setter, the output of which is connected to the input of a pulse generator, and an information processing unit, characterized in that, in order to increase the accuracy control, it is equipped with a frequency sensor of rotation of the feeder parts of the machine, a register and sequentially switched on with a pulse counter and a decoder, while the output of the speed sensor of the feeder organs of the machine is connected to the second input voltage generator, the output of the pulse generator is connected with counters. the input of the pulse counter, the output of the decoder is connected to the input of the register, the output of which is connected to the input of the information processing unit, the outputs connected respectively to the R input of the pulse counter and the E input of the register. ABOUT From to / such 6 frequencies To the generator St / MffiffftcoS Fa g.