SU1725187A1 - Device for programme control of bandaging machine - Google Patents

Description

the OR element, the first AND element, the single-vibrator, the second AND element, the output of which is connected to the first input of the OR element, the second input connected to the input of the device initial setup, the zero output of the pulse counter is connected to the first input of the first element And connected to the output of the one-shot input, the output of which is connected to the load input of the pulse counter, the inputs of the second element I are connected to the second group of information outputs of the program memory block, the group of inputs of the spindle drive, the first group of inputs in the distributor's electric drive and the first group of indicator inputs connected by the second group of inputs to the information outputs of the pulse counter, and the third group of inputs to the address inputs of the program memory and information outputs of the address counter, the zero output of which is the third output of the device, the reset address input address connected to the output of the OR element and the pulse counter reset input, the group of information inputs of which is connected to the first group of information outputs of the program memory block, the first outputs s electric spindle and spreader are respectively connected to first and second outputs of the device.

The device provides the ability to automatically control the imposition of a bandage on one part of the product without restrictions on the form of the bandage, the number of layers of the bandage and the number of turns in the layer, since the banding cycle in this device is represented as a sequence of words recorded in the memory block, each of which consists of two parts: a command to perform a technological operation and a numerical setpoint (the number of turns of the bandage to be applied to the product when performing this technological operation).

The disadvantage of the prototype is that it provides control of a limited set of technological operations used in the bandaging of electrical products windings, and does not allow to automate such technological operations as moving the ribbon spreading wire from one band to another. allows you to bandage all sections of the rotor (core) of the product in one cycle of the machine) and change the magnitude of the displacer movement depending on the change in the rotation frequency a spindle (as a result, it is impossible to provide a step of supplying the spreader to the spindle revolution with the required accuracy, which ultimately degrades the quality of the product being restrained).

5 In addition, the prototype does not provide for the operation of the machine according to several programs, which excludes the possibility of its use in conditions of manufacturing products in small batches, when during a shift is required

10 to make several versions of Korea (rotors) of electrical machines.

The purpose of the invention is to expand the field of application of the device.

The goal is achieved by the fact that

15, the first and second triggers, the multiplexer, the program number setpoint generator, the pulse generator, the third, fourth, fifth and sixth And elements, the output of the last of which is connected to

0 to the counting input of the address counter, the group of information inputs of which are connected to the outputs of the setpoint of the program number, the first input of the sixth element I is connected to the direct output of the second trigger, the input

5 synchronous installation of which is connected to the input input of the address counter and the output of the fifth element And, the first input of which is connected to the output of the one-vibrator and the second input of the sixth element And, and the second input

0 of the fifth element AND is connected to the inverse output of the second trigger, the asynchronous reset input of which is connected to the output of the OR element and the input of the asynchronous reset of the first trigger whose direct output

5 is connected to the second input of the first element I, the input of the synchronous installation to the input of the start of the device, and the input of the synchronous reset to the output of the third element I and to the first input of the fourth element I, the second

0 whose input is connected to the output of the pulse generator, and the output is the fourth output of the device, the group of outputs of the spindle drive is connected to the second group of inputs 5 of the raskladchik drive and the second output of the spindle drive is connected to the first information input of the multiplexer, the second information input connected to the second output Spreader electric drive, address inputs 0 with the second group of information outputs of the program memory block, and output with the counter count input pulse In this case, the inputs of the third element I are connected to the second group of information outputs of the memory block.

Introduction to the structure of the device of the first and second triggers, multiplexer, unit number of the program, pulse generator, the third, fourth, fifth and

of the sixth elements And with the corresponding connections expands the field of application of the device, since it provides automatic control of the product banding in one machine operation cycle.

1 shows a functional diagram of the device; FIG. 2 is a time diagram of the operation; FIG. 3 is a block diagram of its operation; figure 4 is a functional diagram of the spindle and spreading drives.

The device contains a pulse counter 1, the first trigger 2, element 3 OR, the first element 4 AND, the one-shot 5, the fifth element b AND, the sixth element 7 AND, the counter 8 address, the indicator 9, program memory block 10 with two information storage areas , second element 11 And, electric drive 12 spindle, distributor electric drive 13, multiplexer 14, second trigger 15, setpoint 16 program number, third element 17 And, fourth element 18 And, pulse generator 19.

The drive 12 of the spindle (figure 4) contains the bus 20 address inputs, a group of outputs 21, output 22, block 13 has outputs 23 and 24. Figure 1 shows the spreader 25. The output 26 of the drive 12 is connected to the core 27. The electric drive 12 of the spindle ( Fig. 4) also includes a voltage multiplexer 28, a speed controller 29, an electric motor 30, a turn sensor 31, a tacho generator 32, and series-connected variable resistors.

The actuator 13 of the spreadsheet contains a voltage multiplexer 33, a speed controller 34, an electric motor. 35, a turn sensor 36, a tacho generator 37, and two groups of series-connected variable resistors.

The device works as follows:

In the program memory block 10, all the programs of operation of the bandaging machine are recorded. The placement of the memory program is such that the high-order codes of the starting address of each program correspond to its number, and the low-order codes of the initial address are zero. A sequence of instruction codes for performing technological operations is recorded in zone II, and a sequence of numerical settings (the number of turns or the amount of movement of the spreader) to be tested when executing the corresponding commands is recorded in zone I. An example program (5th) is shown in the table.

The initial installation of the device is carried out by a pulse signal (moment

to), which, via element 3 OR, is applied to the reset inputs of the pulse counter 1, the trigger 2, the address counter 8 and the trigger 15 and ensures their zeroing.

In this case, the source signal is output from the third output of the device. The signal from the zero output of the counter 1 pulses prepares the first element 4 I to act on the first input. With the help of the dial

0 16 selects the program number to be executed. When a pulse signal is received. Starting to the input of the device, trigger 2 is set to one state, element 4 AND, which

5 starts the one-shot 5. The pulse generated at the output of the one-shot 5 passes through the element 6 AND, with a leading edge, records the code of the program number dialed on the setpoint 16 in

0 counter 8 addresses, reads from the memory block 10 information stored at the starting address of the selected program, and entering into the counter 1 pulses of the number recorded in the I zone of the address, so

5 as a pulse from the output of the one-shot 5 also permits the recording of the number in the counter 1 pulses. The pulse duration of the one-shot 5 is chosen longer than the total time that comes to the transition processes when the counter status of the address 8 changes and the information is entered into the pulse counter 1, but less than the response time of the controlled mechanisms and sensors. By the falling edge of the pulse of the new vibrator 5, the trigger is set to one state, element 6 AND is closed, and element 7 AND is prepared for operation. Part of a word readable from zone II of memory block 10 - command code - is received

0 bus 20 to the inputs of the second element 11 I, the group of inputs of the spindle drive 12, the first group of inputs of the spreading actuator 13 and the address inputs of the multiplexer 14. If the command for 5 coils of turns is turned on, the spindle drive 12 is turned on at a given speed , multiplexer 14 connects its first information

0 input 22 to exit. The actuator 12 rotates the restoring measles (rotor) using its first output 26, from the group of outputs 21 it outputs an analog signal proportional to the speed of rotation,

5, the second group of inputs of the driver 13 of the spreading device 13, whereby the step of supplying the spreading device 25 per spindle revolution is ensured with high precision. As the spindle rotates, the signals from the rotation sensor embedded in the actuator 12

the spindle, passing through the first input 22 to the output of the multiplexer 14, is fed to the countdown input of the pulse counter 1, in which the number of pulses from the setpoint value to zero is counted. When the state of the pulse counter 1 changes from non-zero to zero, a signal appears at the zero output, which passes through element 7 I, adds one to the contents of the counter 8 address, which results in reading a word stored at the following address of memory block 10 programs (time interval P-12nafig.2).

When reading the command to move the pick-up, the pick-up drive 13 is turned on at a given speed in a given direction of rotation, multiplexer 14 connects its second information input 23 to the output. The actuator 13, using its first output 24, moves the spreading unit 25 from one core banding area (rotor) to another or to the initial position (without rotation of the core). As the distributor moves, signals from the rotation sensor integrated in the distributor drive 13 pass through the second input 23 to the output of the multiplexer 14 and arrive at the countdown input of the pulse counter 1. Further processing of the command is carried out similarly to the command described above (time interval).

When reading the process stop command, the third element 17 And triggers, which returns trigger 2 to the zero state, element 4 And closes. Element 17 And sends a single signal to the first input of the fourth element 18 And, as a result, the pulses of the generator 19 are passed to the fourth output of the device, providing a flashing signal to the operator of the machine. In this case, the machine operator can manually perform the necessary technological operations. When a pulse signal arrives. Starting up the input of the device, trigger 2 is again set to one state, element 4 AND triggers, which triggers the one-shot 5. The pulse generated at the output of the single vibrator 5 passes through element 7 AND, which leads to reading the word At the following address of memory block 10 (time interval t2-ta).

At the end of each work program of the splitting machine, the command End of Cycle is recorded, which, through the first input of element 3 OR, sets the device to its initial state (time

t4).

The zero output of the address 8 counter is used to emit a source signal, which can be used as informational and blocking. 5 Indicator 9 is auxiliary.

element and is intended for use in debugging the device and controlled equipment and troubleshooting them. The indicator displays the following data: the program line number (the address of the program memory block 10), the command and the value of the setpoint to be tested. The operators of the algorithm shown in FIG. 3 perform: 15 1 and 2 — the initial installation of the device;

3 and 4 - starting the device into operation, entering the starting address of the selected program;

6-11 - control of electric drives 0 of the spindle and spreader when winding the turns of the band;

12-16,11 - control of the electric drive of the stacker when it is moved to the next restrained section or in the 5 initial position;

17-20,11 - technological shutdown of the machine;

5 and 2 - the end of the program.

The actuator 12 of the spindle (figure 4) 0 provides a low speed winding turns of the bandage at the beginning and at the end of each layer and the nominal speed of the winding of the other turns of the layer. The voltage multiplexer 28 provides switching of analogue 5 signals from one of the group of inputs to one output, depending on the code at its address inputs 20. The values of the analog signals corresponding to certain spindle rotation frequencies are set by moving contacts of resistors. The system for controlling the frequency of rotation of the electric motor 30, which includes, in addition to the electric motor, a speed controller 29 and a tacho generator 32, can also be made 5, for example, as a complete electric drive EPU1.

At the input of the speed controller 29, the reference signal from the output of the multiplexer 28 is compared with the negative feedback signal in terms of rotation frequency, coming from the tachogenerator 32, which is located on the motor 30 shaft. In the presence of an error, the speed controller 29 generates control pulses of its 5 power elements , providing a change in voltage applied to the core, and consequently, the frequency of rotation of the electric motor. As the mismatch decreases (under the effect of negative feedback on the rotation frequency), the rotation frequency stabilizes at a level proportional to the voltage of the reference. Upon completion of each rotation of the motor shaft 30, the sensor 1 generates a pulse.

The actuator 13 provides testing of the specified directions and speeds of the spreading machine. The operation of the drive is similar to that described above. The difference is that, depending on the code, the address inputs 20 of the multiplexer 33 supply an analog signal to its output, which is proportional to the voltage of the tacho generator 32 (in this case, the speed of the spreader is proportional to the frequency of the spindle rotation) or the set on resistors ( In this case, the speed of the spreader is determined by the corresponding resistor).

The technical and economic effect of the application of the proposed device is expected when it is used in machines and units for bandaging of Koreas and rotors of electric machines, which differ in the variety of shapes, structures, number of banding sections, number of turns and layers of the bandage, as it is possible to use in all these cases one device, which contributes to the universalization of both control devices and the equipment they complete.

The device can also be used to control the processes of bandaging and winding in various industries.

An example of the control program for the operation of the bandaging machine is presented in the table.

Claims (1)

Invention Formula A device for software control of the bandaging machine, containing a pulse counter, spindle drive, spreader drive, address counter, program memory block with two information storage areas, indicator, OR element, first AND element, single vibrator, second AND element, whose output is connected with the first input of the OR element, the second input connected to the input of the initial installation of the device, the zero output of the pulse counter is connected to the first input of the first AND element connected by the output to the one-shot input - pa, the output of which is connected to the input of the pulse counter download, the inputs of the second element I is connected to the second group of information outputs of the program memory block, the input group of the spindle electric drive, the first group of inputs of the spreadsheet electric drive and the first group of indicator inputs connected by the second group of inputs to the information outputs of the pulse counter, and the third group of inputs to the address inputs of the memory block 0 programs and information outputs of the address counter, the zero output of which is the third output of the device, the reset input of the address counter is connected to the output of the OR element and the reset input of the counter 5 pulses, the group of information inputs of which are connected to the first group of information outputs of the program memory block, the first outputs of the spindle and spreader electric drives are connected respectively to the first and second outputs of the device, characterized in that, in order to expand the field of application of the device, the first and second triggers, multiplexer, dial number 5 programs, the pulse generator, the third, fourth, fifth and sixth elements And, the output of the last of which is connected to the counting input of the address counter, the group of information inputs of which are connected 0 with the outputs of the setpoint of the program number, the first input of the sixth element I is connected to the forward output of the second trigger, the synchronous input of which is connected to the load input of the address counter and the output 5 fifth element And, the first input of which is connected to the output of the single vibrator and the second input of the sixth element And, and the second input of the fifth element And connected to the inverse output of the second trigger, the input of the asynchronous reset of which is connected to the output of the asynchronous reset of the first trigger , the direct output of which is connected to the second input of the first element I, the input of the synchronous installation to the input 5 start the device and the synchronous reset input to the output of the third element I and to the first input of the fourth element I, the second input of which is connected to the output of the pulse generator, and the output is the fourth output of the device, and the second group of outputs of the spindle electric drive is connected to the second group The drive spreader drive, and the second spindle drive output is connected to 5 to the first information input of the multiplexer, the second information input connected to the second output of the distributor electric drive, the address inputs to the second group of information outputs of the program memory block, and the output to the count input of the pulse counter, the inputs of the third And element are connected to the second group of information outputs of the block memory 0105 03 0002 01 0005 02 0105 0002 0000 0070 0003 0000 04 02 09 07 08 ten low speed o Set the spreading motor direction clockwise, and the frequency is proportional to the speed of the spindle drive Turn on the spindle drive at rated speed, the rest is the same Enable spindle motor at low speed, the rest is Turn on the spindle motor at low speed. Set the spreader drive counterclockwise and the frequency proportional to the spindle drive speed Turn on the spindle drive at rated speed, the rest is the same Turn on the spindle at low speed, the rest is the same Technical shutdown Enable flashing stop signal, waiting for the Start signal. Turn on the spreader drive at rated speed Set the direction of rotation counterclockwise Switch on the low speed electric drive, the rest is the same End of the program C I Ј Ci l -Q: & v v-  "Q § & o № f40mdodp4 {/ from