SU1725184A1 - Device for program control over winding machine - Google Patents

Abstract

The invention relates to devices for automating winding processing equipment. The device provides a series of winding coils with increased reliability, smaller dimensions and requiring less consumption of active materials, and also has greater speed. The programmable logic controller of the device is entered into the program of the machine operation, the execution of which begins after the start signal from the operator console. The installations are recorded in the first and second counters and the spindle drive is turned on, on which the coil pattern is mounted. When the spindle is rotated at a predetermined angle, the wire is wound onto a portion of the coil pattern without laying out the wire, while the pulses of the spindle angular displacement transducer reduce the contents of the first counter to zero. As a result, the pulses of the pulse generator are fed to the input of the distributor drive, having carried out its longitudinal step-by-step movement to the value specified in the second counter in the loop transfer section. The controller calculates the number of winding turns on signals from an angular displacement sensor, controls the drives of auxiliary mechanisms depending on the state of position sensors installed on the machine. 8 il. Yo and | SL 00 4

Description

The invention relates to automation, specifically to devices for automating winding process equipment.

A device for software control of a winding machine is known, comprising a spindle electric drive and a spreader electric drive, a spin counter, a decoder, a memory block, an address counter, electric drives of auxiliary movements, a multiplexer, the first and second elements OR, the first and second elements AND, the one-shot, timer, indicator, data setter, address setter, multiplicity setter, pulse distributor, speed corrector multiplicity counter, NOT element, trigger and bus driver unit.

The device provides automatic control of the manufacture of coils of electrical machines and devices without restrictions on the shape of the coils, the number of different elements and combinations, allows the process operator to quickly reconfigure the winding machine, but it does not provide high quality of the manufactured products, since the resulting shape of turns winding coils leads, ultimately, to an increase in size and deterioration of the electrical parameters of electrical machines and apparatus.

It is also known that the winding equipment control device (BUN-1) contains an information exchange channel to which the central processor, random access memory, information input-output control device, the outputs of which are connected to the inputs of the console terminal, and the parallel interface, are connected. the inputs of which are connected to the sensors and actuators actuators.

The closest in technical essence of the present invention is a device for software control of a winding machine, comprising an operator panel, a programmable logic controller, auxiliary mechanisms position sensors, a speed controller, a speed controller, a spindle rotation motor, a tachogenerator, an angular displacement sensor, auxiliary drives mechanisms, and the inputs and outputs of the operator’s console are connected respectively to the first group of load control outputs and to the first group Ne input of discrete signals of the programmable logic controller, the second group of inputs of input of discrete signals of which is connected to the corresponding outputs of the auxiliary mechanisms position sensors, the first output of the load control of the programmable logic controller connected to the first input of the speed controller, the second group of outputs of the load of the programmable logic controller - with a group of inputs of the speed limiter, the output connected to the second input of the speed regulator, outputs which are connected to the motor of rotation of the spindle, the output of which is mechanically connected to the spindle, to the input of the tachogenerator, the output connected to the third

the input of the speed controller and the input of the angular displacement sensor, the first output connected to the first input of the input discrete signals of the programmable logic controller, the third group of load control outputs of which are connected to the inputs of the auxiliary mechanism drives.

A disadvantage of the known device is that it does not provide an accurate serial winding of a coil, in which the coils lie in a row tightly to each other, there are no crosses and heaps of coils, the winding space is maximally used, since it does not include means providing accurate displacing of the spreader (second coordinate), which can be controlled independently of the spindle rotation (first coordinate).

In addition, the device contains a programmable logic controller, which provides the implementation of the tasks of program-logic and cycle control, has a low speed. This is because the programmable logic controller is a microprocessor control unit for sequential operation (program processing is carried out by sequential execution of commands).

The purpose of the invention is to improve the quality of manufactured products and increase the speed of the device.

The goal is achieved by introducing a stepper motor control unit, a spreading motor, first and second address decoders, first and second triggers, first and second pulse counters, first, second and third And elements, and a pulse generator whose output is connected to the first the inputs of the first element And the second element And, the second input of which is connected to the inverse output of the second trigger, and the output to the input of the synchronous installation of the second trigger, the direct output of which is connected to the second input p of the first element I, the output of the stepper motor control unit connected to the pulse input and to the counting input of the second pulse counter, the zero-discharge output of which is connected to the second input of the discrete signals of the programmable logic controller and the asynchronous reset input of the second trigger, the recording input of the second pulse counter connected to the output of the second address decoder, and the information inputs of the second pulse counter are connected to the information inputs of the first pulse counter and bus yes the programmable controller whose address bus is connected to the low-order input of the first address decoder and to the lower-order input of the second address decoder, the output signal of the programmable logic controller is connected to the high-level input of the second address decoder and to the high-level input of the first the address decoder, the output of which is connected to the recording input of the first pulse counter, the zero-bit output of which is connected to the third input of the second And element and to the asynchronous reset input of the first the first trigger whose asynchronous installation is connected to the first output of an angular displacement sensor, the second output of which is connected to the first input of the third element AND, the second input of which is connected to the direct output of the first trigger, and the output of the third element AND pulse counter, the reset input of which is connected to the reset input of the second pulse counter and the output of the reset signal of the programmable logic controller, the second output of which is connected to the first output ode setpoint speed, a second input coupled to the first output of the rotary encoder, and the fourth group of the PLC loads the control of the programmable outputs connected to the inputs of the potential control unit sha- traction motor whose outputs are connected to the motor spreader whose output is connected mechanically by block.

Introducing the raker of the first and second address decoders, the first and second triggers, the first and second pulse counters, the first, second and third elements AND and the pulse generator with appropriate connections to the control unit of the stepper motor of the raskadchik motor, the first and second triggers of the products and increases the speed of the device. The device provides winding of each turn in a plane perpendicular to the axis of the coil, while the transfer (longitudinal movement) of the coil to the wire diameter occurs during rotation of the spindle (coil pattern) at a given angle (in the coil transfer zone).

At the same time, an accurate winding of the coil is ensured, the turns lie in a row tightly to each other, each turn of the upper row lies between the turns of the lower row,

there are no crosses and heaps of turns, the winding space is maximally used. Thus, a coil with random winding has increased reliability due to the elimination of the danger of inter-turn and interlayer closure. The high filling ratio reduces the consumption of copper and active materials, reduces the overall dimensions of the product.

The use of hardware to control (counting pulses with high accuracy) the angle of rotation of the spindle and the magnitude of movement of the wire marker and the use of a programmable logic controller for the implementation of the remaining control functions significantly increases the speed of the device.

1 shows a functional diagram of the device; figure 2-4 - the algorithms of his work; Fig. 5 is a timing diagram of the operation of the counter of the rotation angle of the spindle and the counter of the magnitude of displaced displacement; figure 6 is a functional diagram of the programmable controller; figure 7 is a functional diagram of the unit speed; On Fig - typical form wound coil.

The device contains an operator panel 1, sensors 2-3 for auxiliary mechanisms, programmable logic controller 4, speed controller 5, speed controller 6, spindle rotation motor 7, tacho generator 8, angle displacement sensor 9, actuators 10-11 of auxiliary mechanisms, block 12 control of the stepper motor, the motor 13, the first trigger 14, the first 15 and the second 16 address decoders, the second trigger 17, the third element And 18, the first 19 and second 20 counters, the first element And 21, the second element And 22 and the generator 23 pulses. The motor 7 is mechanically connected to the spindle on which the pattern of the coil 24 is attached. On the latter, a wire is wound, which is moved during the winding process along the axis of the pattern by the clapper 25.

The programmable logic controller 4 contains inputs 26-30, outputs 31-41, the first parallel interface 42, the processing unit 43, the operational 44 and the permanent 45 storage devices, the control unit 46, the second parallel interface 47, the control panel 48 containing the keyboard 49 and indicators 50.

The unit speed 5 (Fig.7) contains the multiplexer 51 analog signals, the block 52 of the elements And, the element AND-53 and

a group of series-connected variable resistors.

The device works as follows.

The program for controlling the cycle of the winder machine is stored in the memory of the programmable logic controller 4.

When the device is turned on, the controller 4 is reset, its command counter STK is set to the position corresponding to the beginning of the machine cycle, a zero code appears on the second group of load control outputs 37 of the controller, which goes to a group of inputs behind the speed sensor 5, disabled by means of the torus 6 rotates the motor 7 spindle, and the controller output 36 generates a reset signal, which sets the first 19 and second 20 pulse counters to the zero state, while the zero output, times and each of the counters is on a single signal. The signal from the zero-discharge output of the pulse counter 19 is fed to the asynchronous reset input of the trigger 14 and to the third input of the I 22 element, and the signal from the zero-discharge output of the counter of 20 pulses to the asynchronous reset input of the trigger 17, which blocks the passage of the generator 23 pulses through the element And 21 (operator 1). The pulses of the generator 23, which in this case pass through the element 22 to the input of the synchronous installation of the trigger 17, do not change the state of the trigger, since a single signal from the output of the pulse counter 20 is present at its asynchronous reset input.

The device can operate in two modes: Enter the program and Automatic. The program entry mode is used to write control program commands into a memory device that ensures the execution of a predetermined machine cycle control algorithm and the parameters of the coil to be made (number of coil layers, number of turns in a layer, wire diameter, etc.).

In this case, the necessary command is dialed by the operator on the keyboard of the control panel of the controller 4, entered into its memory, and displayed on the indicators of the control panel (operators 2-6).

In the Automatic mode, the controller 4 controls the machine in accordance with the control program stored in its memory. Upon receipt of a signal, the Start from the operator’s console 1 to one of the inputs of the first group 26

of the programmable logic controller 4, the program of the machine starts to work, and the counter of the JCC is transferred to the position corresponding to the following

control step (operators 7-10).

The program provides for the execution of the control algorithm sequentially in steps (the next technological operation is performed after the completion of the previous one).

At the beginning of the cycle of operation of the machine, the auxiliary mechanisms are moved (turning on the heater, which ensures melting by hot

5 air adhesive layer of the wire in the process of winding, setting the beginning of the coil in the fixing unit on the template before winding), depending on the combination of signals received by the second group of inputs 27 and 28 from sensors 2-3 positions installed on the machine, the controller 4 provides for the issuance to the third group of outputs 38 and 39 of the necessary commands to enable the drives 10-11 auxiliary

5 mechanisms (operators 31-34).

Then, the settings are recorded in the first counter 19 pulses of the spindle angle of rotation (coil pattern) from the initial position, after working off which the wire transfer begins (time ti) and the second counter 20 pulses of the wire transfer value when winding one turn equal to the diameter ( half the diameter of the wire (moment ta). At the same time

5 inputs of the least significant (bus 31 addresses) and senior (output 32 of the controller's recording signal) bits of the decoder 15 (or 16) appear a combination of signals, providing a record of the code of the number present on

0 bus 34 data in counter 19 (counter 20). When a setpoint is written to the first pulse counter 19, a zero signal appears at the output of its zero bit, which stops resetting trigger 14 and closes

5 the third input element AND 22. When writing the setpoint to the second pulse counter 20, a zero signal appears at the output of its zero discharge, which stops resetting the trigger 17.

0 After the settings have been recorded, the motor (7) is turned on (spindle torque) and the choice of the direction of movement (forward or backward) of the spreader. For this, from output 36 of controller 4 to

5, the first input of the speed controller 6 receives a start signal, and from the output group 37, a code to the input group for the speed sensor 5, which generates an analog signal at the second input of the speed controller 6 that provides the specified frequency and direction

rotation of the motor 7. The direction of movement of the spreader is determined by a signal from one of the group of outputs 41 of the controller 4 to one of the potential inputs of the control motor 12 of the stepping motor (operators 13-15).

The system for controlling the frequency of rotation of the electric motor 7, including the speed regulator 6, the electric motor 7 and the tachogenerator 8, can also be implemented as, for example, the complete electric drive EPU1.

At the input of the speed controller 6, the reference signal from the output of the speed setpoint 5 output and the negative feedback signal for the rotational speed, coming from the tachogenerator 8, located on the motor 7, are compared. In the presence of an error, the speed regulator generates control pulses of its power elements, providing a change in the 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 frequency of rotation), the frequency of rotation stabilizes at a level proportional to the voltage of the reference.

When the spindle rotates, the sensor 9, which can be made in the same way as the angular displacement transducer of the photoelectric model BE 178AS, generates a start signal (one per revolution) at the first output and a series of measuring signals per shaft rotation at the second output. The end of the signal (moment) at the first output of sensor 9 triggers the trigger 14, after which the signals from the second output of sensor 9 pass through element 18 to the counting input of the first counter of 1.9 pulses. When the spindle is rotated to a predetermined angle, the wire is wound onto the ADS template section without laying out the wire (point X of the spindle initial position successively passes points A, D, C, and the coil template), and the pulse counter 19 becomes zero. the output of the latter appears a single signal, which returns the trigger 14 to the zero state and allows the passage of pulses through the element 22 (moment ts). The first pulse of the generator 23 passes through the element 22 and sets the trigger 17 to one state. The latter closes element 22 of the second input and opens element 21 of the generator 21. The pulses of the generator 23, starting from the second, pass (from the moment te) through the element 21 to the pulse input of the stepper motor control unit 12 and to the countdown input of the second counter 20 pulses. Block 12 can be designed as a control unit of BUSH-1 type. When a pulse arrives at its input, unit 12 provides for rotation of the engine 13 and, therefore, movement of the spreading unit 25 by one step. The wire is shifted to a predetermined amount when the pattern of the winding coil of point X passes through section CB (Fig. 6), and the contents of pulse counter 20 become equal to zero (time ty), a single signal appears at the output of the latter, which is fed to the second input 30 programmable logic controller 4 and the asynchronous reset input trigger 17, fixing it in the zero position. The trigger 17 blocks the element And 21. At the completion of the spindle rotation (before the point A of the pattern returns to its original position, point X), the commands of the controller 4 record the settings in counters 19 and 20 (instants te, tg). After the spindle has passed the initial position point, the sensor 9 forms an impulse at the first output 29, which again sets the trigger 14 to one state (time tio), and the process repeats (operators 16-26,28).

The programmable controller 4 processes the signals arriving at its second input 30, each time reduces the contents of the turn counter, which, like the layer counter, is organized in the controller programmatically, records the start times of the last turn of each layer and the time of the last turn of the coil .

If the last turn of the layer winds up (operator 26 runs), controller 4 issues a code on the second group of outputs 37 to the group of inputs of the setpoint generator 5 and providing a low spindle frequency, and on the fourth group of outputs 41 to the code to the potential inputs of block 12 controlling the stepper motor and providing, if necessary, changing the direction of movement of the marker (operator 27).

If the last turn of the coil is wound (operator 25 is executed), the controller 4 outputs at the second output 40 a signal arriving at the first input of the setpoint generator 5, preparing an exact spindle stop. The latter occurs according to the signal arising at the second input of the speed setting device 5 from the first output 29 of the sensor 9 of angular displacements, while the setting device 5 outputs a zero potential to the second input of the speed controller 6 (operators 29, 30). After the end of the coil winding, the controller 4 provides for the return of the machine mechanisms to the initial position (operators 31-34), at the same time, a segment of the end of the coil is fixed and fixed in the block the segments of the beginning of the subsequent coil.

In the absence of a re-cycle enable signal, the controller 4 turns off the speed controller b, the stepper motor control unit 12 and sets its STK counter to the initial position (operators 36-38).

The indication of the positions of the mechanisms during the operation of the machine is carried out on the operator panel 1 by signals from the first group of outputs 35 of the programmable logic controller 4. The machine is turned off when a Stop signal is received from the panel of the operator 1 to one of the inputs of the first group 26 of the programmable logic controller four.

The programmable logic controller (Fig. 6) is a processor device oriented to the tasks of program-logic control of the process equipment and executed as a microcontroller programmed by the MCP-1. The processor unit 43 collects, digitally processes, and outputs information in accordance with the executive program recorded in the persistent storage device 45. The executive program provides conversion of instructions from the control program into a sequence of computer language codes of the processor unit 43 implementing these instructions . The control program is a program written in the codes of the input language of the programmable controller and ensuring the execution of the specified machine control algorithm. It is located in the random access memory 44 and is stored when the power of the controller is turned off by using a non-volatile power source (battery of cells) located in the device 44.

In the Program Entry mode, the control program command codes are recorded in the random access memory 44. The required command is typed by the operator by successively pressing the keys of the keyboard 49 of the control panel 48 of the control. The code of the pressed key is recorded in the keypad register of the control unit 46, which generates an interrupt request signal. Upon detecting the latter, the processor unit 43, under the control of an executive program read from the persistent storage device 45, addresses the keypad register

The control unit 46 sends a read signal to the I / O devices, initiating the transfer of information from the keyboard register to the data bus 34. Processor unit 43,

reading the keystroke codes, generates a command code from them and sends it to the device 44 at the address determined by the command counter, the contents of which are incremented by one at the end of the transmission of each command. The command to be entered together with the current value of the command counter is displayed on the indicators 50 of the control panel 48. In this case, the displayed information is received via the data bus.

5 from the processor unit 43 and is recorded in the memory cells of the indicators 50 of the control panel 48, the addresses of which are determined by the state of the signals on the address bus 31. The recording of information is carried out by a signal 32 of writing to an I / O device. In the automatic mode of operation, the machine is controlled in accordance with the algorithm implemented as a control program stored in the operative memory 44. Thus, the latter is the source of commands for the processor unit 43, which it selects by address, determined by the program counter.

0 In accordance with the program, processor unit 43 polls via the first parallel interface 42 the state of the controller inputs, makes a logical comparison of them with the states provided by the program, and sends a command to enable and disable the controller outputs via the second parallel interface 47 .

Speed setting unit 5 (Fig. 7) uses 0 s for supplying the second input of the analog speed controller of the required magnitude and polarity, which provides the appropriate direction and frequency of rotation of the spindle motor.

5 Multiplexer 51 provides switching of analog signals from one of several inputs to one output, depending on the code at its address inputs. The values of the analog signals corresponding to certain frequencies of spindle rotation are set using movable contacts of resistors. The address inputs of the multiplexer 51 through the block 52 of the elements And receive the digital code present on the group of inputs 37 of the setter, always, except for the moment when the coil winding is finished.

When the last turn of the coil is wound, a single signal appears at the input 40 of the setting device, and when the winding of the last turn ends, a single signal also appears at the input 29 of the setting device. As a result, the element IS-NOT 53 generates a zero signal to the second input of the block 52 of the elements And, which generates a zero code on the address inputs of the multiplexer 51, regardless of the code present on the group of inputs 37 of the setter. In this case, a zero potential is transmitted to the output of the multiplexer (master).

The technical and economic effect of the application of the proposed device is expected by increasing the quality of the manufactured coils and reducing the labor intensity of their manufacture.

The device can also be used to control winding processes in various industries.

Fo rmulase and the Device for software control of a winding machine, comprising an operator panel, a programmable logic controller, auxiliary position sensors, a speed controller, a speed controller, a spindle rotation motor, tachogenerator, angular displacement sensor, auxiliary mechanisms drives, the inputs and outputs of the operator console are connected to the first group of load control outputs and are programmable to the first group of inputs to the input of discrete signals logical logic controller, the second group of inputs of discrete signal inputs of which is connected to the corresponding outputs of the auxiliary mechanisms' position sensors, the first output of the load control of the programmable logic controller is connected to the first input of the speed controller, the second group of outputs of the load control of the programmable logic controller - with the group of speed master inputs, output connected to the second input of the regulator with .-. maturity, the outputs of which are connected to the motor of rotation sp The index, whose output is mechanically connected to the v, with the spindle, to the input of the tachogenerator, the output connected to the third input of the speed controller and to the input of the angular displacement sensor, the first output connected to the first input of the input discrete signals of the programmable logic controller, the third group of output control loads which is connected to the inputs of the actuators of the auxiliary mechanisms, characterized in that, in order to improve the quality of the manufactured products and increase the speed of the device, stepper motor control loader, spreading motor, first and second address decoders, first and second

triggers, first and second pulse counters, first, second and third And elements and a pulse generator, the output of which is connected to the first inputs of the first element And the second element And, the second input of which is connected to the inverse output of the second trigger, and the output to the synchronous input setting the second trigger, the direct output of which is connected to the second input of the first element I, the output connected to the pulse input of the control unit of the stepping motor, and to the counting input of the second pulse counter, the output of zero discharge to which is connected to the second input of the input of discrete signals of the programmable logic controller, and with the asynchronous reset input of the second trigger, the write input of the second pulse counter is connected to the output of the second address decoder, and the information

5 inputs of the second pulse counter connector-. with information inputs of the first pulse counter and data bus of a programmable logic controller, whose address bus is connected to the input

0 low bits of the first address decoder and the low bits of the second address decoder, the output signal of the programmable logic controller write is connected to the high bit input of the second address decoder and to the high bit input of the first address decoder, the output of which is connected to the record input of the first pulse counter whose zero-output output is connected to

0 to the third input of the second element And to the input of the asynchronous reset of the first trigger, the input of the synchronous installation of which is connected to the first output of the angular displacement sensor, the second output of which

5 is connected to the first input of the third element And, the second input of which is connected to the forward output of the first trigger, and the output of the third Mr. And connected to the counting input of the first pulse counter,

0 the reset input of which is connected to the reset input of the second pulse counter and the output of the reset signal of the programmable logic controller, the second output of the load control of which is connected

5 to the first input of the speed limiter, the second input connected to the first output of the angular displacement sensor, and a fourth group of load control outputs of the programmable logic controller is connected to potential

the inputs of the control unit of the stepper motor of the spreader, the output of which is by a loop, the outlets of which are connected to the electrically connected to the spreader.

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Claims (1)

The claims 20 A device for programmed control of a winding machine, comprising an operator panel, a programmable logic controller, position sensors of auxiliary mechanisms, a speed controller 25, a speed controller, a spindle rotation motor, a tachogenerator, an angular displacement sensor, auxiliary mechanism drives, the inputs and outputs of the operator panel being connected 30, respectively to the first group of outputs for load control and to the first group of inputs for inputting discrete signals of a programmable logic controller, the second group of inputs for inputting discrete signals 35 of which is connected to the corresponding outputs of the position sensors of auxiliary mechanisms, the first output of the load control of the programmable logic controller is connected to the first 40 input of the speed controller, the second group of outputs of the load control of the programmable logic controller is connected to the group of inputs of the speed controller, output connected to the second input of the regulator s. '. of duration, the outputs of which are connected to a spindle rotation motor, the output of which is mechanically unified with a spindle, with the input of the tachogenerator, the output connected to the third 50 input of the speed controller and the input of the angular displacement sensor, the first output connected to the first input of the input of discrete signals of the programmable logic controller, the third group of which 55 load control outputs are connected to the inputs of the drives auxiliary mechanisms, characterized in that, in order to improve the quality of manufactured products and increase the quick action of the device, a step control unit for drive, the motor of the distributor, the first and second address decoders, the first and second triggers, the first and second pulse counters, the first, second and third elements And and the pulse generator, the output of which is connected to the first inputs of the first element And and the second element And, the second input of which connected to the inverse output of the second trigger, and the output to the input of the synchronous installation of the second trigger, the direct output of which is connected to the second input of the first element And, the output connected to the pulse input of the step control unit atelier, and to the input of the countdown of the second pulse counter, the zero discharge output of which is connected to the second input of the input of discrete signals of the programmable logic, controller and with the asynchronous reset input of the second trigger, the write input of the second pulse counter is connected to the output of the second address decoder, and the information inputs of the second the pulse counter is connected to the information inputs of the first pulse counter and the data bus of the programmable logic controller, the address bus of which is connected to the input their bits of the first address decoder and to the input of the least significant bits of the second address decoder, the output of the write signal of the programmable logic controller is connected to the input of the highest bit of the second address decoder and to the input of the highest bit of the first address decoder, the output of which is connected to the recording input of the first pulse counter, zero bit output which is connected to the third input of the second element And and to the input of the asynchronous reset of the first trigger, the synchronous installation input of which is connected to the first output of the sensor global displacements, the second output of which is connected to the first input of the third element And, the second input of which is connected to the direct output of the first trigger, and the output of the third <lance And is connected to the input of the countdown of the first pulse counter, the reset input of which is connected to the reset input of the second pulse counter and the output of the reset signal of the programmable logic controller, the second output of the load control of which is connected to the first input of the speed controller, the second input connected to the first output of the angle sensor openings, and the fourth group of outputs of the load control of the programmable logic controller is connected to the potential inputs of the control unit of the stepper motor of the pickup, the output of which is a terminal whose outputs are connected mechanically to the pickup. figure 1. 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