SU874798A1

SU874798A1 - Circular-knitting machine programme control device

Info

Publication number: SU874798A1
Application number: SU792740241A
Authority: SU
Inventors: Вячеслав Андреевич Жучков
Original assignee: Предприятие П/Я Г-4387
Priority date: 1979-03-21
Filing date: 1979-03-21
Publication date: 1981-10-23

Description

Изобретение относится к области трикотажного машиностроения, конкретнее, к устройствам программного управления кругловязальными машинами, _ служащими, например, для изготовлё- ³ ния чулочно-носочных изделий.The invention relates to the field of knitting engineering, and more particularly, to software control devices for circular knitting machines, _ serving, for example, for the manufacture of ³ hosiery products.

Известно устройство программного управления кругловязальной машиной, содержащее блок задания программы, первым входом связанный с первым выходом блока контроля стартового положения рабочих органов, вторым - с первым выходом синхронизатора, а выходом - с первым входом синхронизатора, второй и третий входы которого 15 соединены соответственно со вторым выходом блока контроля стартового положения рабочих органов и с выходом элемента И-НЕ, триггер дозаписи, первым входом через элемент И-НЕ под- 20 ключенный ко второму выходу блока.контроля стартового положения рабочих органов и к датчику углового положения игольного цилиндра, вторым к шине Земля¹, а третьим - с источником 25 напряжения, соответствующего логической единице, блок контроля срабатывания рабочих органов, электрически связанный со вторым выходом синхронизатора, и блок останова машины [1]. 30A device for programmed control of a circular knitting machine containing a program setting unit, the first input associated with the first output of the control unit for starting position of the working bodies, the second with the first output of the synchronizer, and the output with the first input of the synchronizer, the second and third inputs of which 15 are connected respectively to the second the output of the control unit for the starting position of the working bodies and with the output of the AND-NOT element, an overwriting trigger, the first input through the AND-NOT element connected to the second output of the block. the articulate position of the working bodies and to the sensor of the angular position of the needle cylinder, the second to the Earth ¹ bus, and the third with a voltage source 25 corresponding to a logical unit, a control unit for the operation of the working bodies, electrically connected to the second output of the synchronizer, and a machine stop unit [1] . thirty

Недостатком известного устройства является отсутствие информации для оператора о количестве оборотов игольного цилиндра до начала переключения рабочих органов, что необходимо для проведения отладочных работ на кругловязальной машине.A disadvantage of the known device is the lack of information for the operator about the number of revolutions of the needle cylinder before switching the working bodies, which is necessary for debugging on a circular knitting machine.

Отсутствие информации обязывает оператора при отладке машины останавливать ее за множество оборотов до начала переключений рабочих, органов, чтобы не упустить момент начала переключений, происходящих на высокой скорости. Довязывание изделия до начала переключения в этом случае происходит с помощью ручного привода, что значительно увеличивает общее время отладочных работ и снижает объем выпуска готовой продукции .The lack of information obliges the operator when debugging the machine to stop it for many revolutions before the switching of workers, organs, so as not to miss the moment of the beginning of switching occurring at high speed. In this case, the product is tied up to the start of switching using a manual drive, which significantly increases the total debugging time and reduces the volume of finished products.

Цель изобретения - расширение технологических возможностей и упрощение наладки устройства.The purpose of the invention is the expansion of technological capabilities and simplification of device setup.

Указанная цель достигается тем, что устройство имеет блок избирательного останова машины, состоящий из коммутатора, триггера останова, элемента ИЛИ, двух элементов И и элемента И-НЕ останова, при этом рыход элемента И-НЕ останова подключен к пер вому входу триггера останова, второй вход которого соединен с шиной Земпя, третий - с третьим выходом синхронизатора, четвертый - с источником напряжения, соответствующего логической единице, а его'взаимоинверсвые выходы раздельно соединены с первыми входами обоих элементов И, вторые входы которых соответственно свяваны с третьим и четвертым выходами синхронизатора, причем выход первого элемента И электрически связан с гетвертым входом триггера дозаписи, шход второго элемента И через первый вход элемента ИЛИ соединен с блосом останова машины, второй вход эледента ИЛИ подключен к блоку контроля срабатывания рабочих органов, первый зход элемента И-НЕ останова связан’ з выходом элемента И-НЕ, второй его зход подключен к выходу коммутатора, зход которого электрически связан с синой Земля.This goal is achieved by the fact that the device has a selective stop unit of the machine, consisting of a switch, a stop trigger, an OR element, two AND elements and an AND-NOT stop element, while the output of the AND-NO stop element is connected to the first input of the stop trigger, the second the input of which is connected to the Zempia bus, the third - with the third output of the synchronizer, the fourth - with a voltage source corresponding to a logical unit, and its mutually inverse outputs are separately connected to the first inputs of both AND elements, the second inputs of which respectively, associated with the third and fourth outputs of the synchronizer, and the output of the first AND element is electrically connected to the getter input of the dose trigger, the step of the second AND element through the first input of the OR element is connected to the stop block of the machine, the second input of the OR element is connected to the control unit for operation of the working bodies, the first the input of the AND-NOT stop element is connected to the output of the AND-NOT element, its second input is connected to the output of the switch, the input of which is electrically connected to the blue Earth.

На фиг. 1 изображена функциональзая схема устройства; на фиг. 2 зременная диаграмма работы устройства по выходам основных элементов.In FIG. 1 shows a functional diagram of a device; in FIG. 2 is a timing diagram of the operation of the device according to the outputs of the main elements.

Устройство программного управле1ия кругловязальной машиной имеет элок 1 задания программы, первый зход которого соединен с первым выгодой блока 2 контроля стартового изложения рабочих органов. Второй зход блока 1 соединен с первым выходом синхронизатора 3, первый вход которого соединен с выходом блока 1. Зторой вход синхронизатора 3 соедизен со вторым входом блока 2 и с перзым входом управляющего логического элемента И-НЕ 4. Второй вход элемента 4 соединен с датчиком 5 углового изложения игольного цилиндра, а выгод - с С - входом синхронизатора, з С - входом триггера 6 дозаписи и , з первым входом логического элемента 7 И-НЕ блока 8 останова машины перед череключением рабочего органа.The device for programmed control of the circular knitting machine has an Elok 1 of the program task, the first run of which is connected to the first benefit of the control block 2 of the starting presentation of the working bodies. The second input of block 1 is connected to the first output of the synchronizer 3, the first input of which is connected to the output of block 1. The third input of the synchronizer 3 is connected to the second input of the block 2 and to the first input of the control logic element NAND 4. The second input of the element 4 is connected to the sensor 5 angular presentation of the needle cylinder, and the benefits - with C - the input of the synchronizer, with C - the input of the trigger 6 dosing and, with the first input of the logic element 7 AND NOT block 8 of the machine stop before switching on the working body.

Второй вход элемента 7 соединен 2 выходом коммутатора 9 останова, зход которого соединен с логическим чулем шины Земля и с К - входом триггера 10 останова. R - вход триггера 10 соединен с выходом элемента 7, J - вход - с источником напряжения, соответствующего логической единице, С - вход - с R - выходом синхронизатора 3 и с первым входом логического элемента И. Второй, импульсный вход элемента .11 соединен с единичным выходом триггера 10. Выход элемента 11 соединен с R - входом триггера 6 дозаписи. Нулевой выход триггера 10 соединен с первым входом логического элемента И 12,второй вход которого соединен с Q - выходом синхронизатора 3. Выход элемента 12 соединен с первым входом логического элемента ИЛИ 13,The second input of element 7 is connected by the 2 output of the stop switch 9, the input of which is connected to the logical stock of the Earth bus and to K - the input of the stop trigger 10. R - trigger input 10 is connected to the output of element 7, J - input - with a voltage source corresponding to a logical unit, C - input - with R - output of synchronizer 3 and with the first input of logic element I. The second, pulse input of element .11 is connected to a single output of the trigger 10. The output of the element 11 is connected to the R - input of the trigger 6 dose recording. The zero output of the trigger 10 is connected to the first input of the logical element And 12, the second input of which is connected to Q - the output of the synchronizer 3. The output of the element 12 is connected to the first input of the logical element OR 13,

Z-выход синхронизатора 3 через блок контроля срабатывания рабочих органов связан со вторым входом элемента ИЛИ 13.Выход элемента ИЛИ 13 соединен с блоком 15 останова машины.The Z-output of the synchronizer 3 through the control unit of operation of the working bodies is connected to the second input of the OR 13 element. The output of the OR 13 element is connected to the unit 15 of the machine stop.

Электронное устройство программного управления кругловязальной машиной работает следующим образом.The electronic device for controlling the circular knitting machine operates as follows.

При подаче напряжения на схему в момент времени t_o срабатывает блок 2 контроля стартового положения’рабочих органов и устанавливает синхронизатор 3 в стартовое состояние, соответствующее началу выработки чулочно-носочного изделия.When voltage is applied to the circuit at time t _o, the unit 2 for monitoring the starting position of the working organs is activated and sets the synchronizer 3 in the starting state corresponding to the beginning of the development of the hosiery.

В момент времени t₄ кругловязальная машина и блок 1 задания программы устанавливаются в стартовое состояние. Через триггер 6 дозаписи в синхронизатор 3 вводится информация, вызывающая появление единичного сигнала на его Q - выходе за два единичных шага; контролируемых датчиков 5 углового положения игольного цилиндра, до подачи команды на переключение рабочего органа.At time t _{4, the} circular knitting machine and the program setting unit 1 are set to the starting state. Through trigger 6 dosing, information is entered into synchronizer 3, which causes the appearance of a single signal on its Q - output in two single steps; monitored sensors 5 of the angular position of the needle cylinder, until the command to switch the working body.

В момент времени t₂ срабатывает коммутатор 9 останова и подает единичный сигнал на второй вход элеменia И-НЕ 7. При появлении на выходе управляющего элемента И-НЕ 4 единичного сигнала на выходе элемента 7 появляется нулевой сигнал, переключающий триггер 10 останова в нулевое состояние.At time t _2, the stop switch 9 is triggered and supplies a single signal to the second input of the AND-NOT element 7. When a single signal appears at the output of the AND-HE 4 control element, a zero signal appears at the output of the element 7, switching the stop trigger 10 to the zero state.

На нулевом выходе триггера 10 появляется единичный сигнал, подготавливающий элемент И 12 к срабатыванию.At the zero output of the trigger 10, a single signal appears, preparing the element And 12 to operate.

Отрицательным перепадом напряжения на единичном выходе триггера 10 переключается элемент И 11 и при этом происходит переключение триггера 6 дозаписи, в результате чего в синхронизатор 3 записывается дополнительная информация для Q, - выхода, в данном случае сигнал на Q - выходе синхронизатора появится уже за четыре шага до момента переключения рабочего органа.The negative voltage drop at the single output of the trigger 10 switches the element And 11 and at the same time the trigger 6 of the overwriting is switched, as a result of which additional information is written to the synchronizer 3 for the Q, - output, in this case the signal at the Q - output of the synchronizer will appear in four steps until the switching of the working body.

В момент времени tg синхронизатор по Q - выходу выдает единичный сигнал на элемент 12 И, на выходе которого появляется единичный сигнал.Этот сигнал через элемент ИЛИ 13 передается на блок 15 останова машины.At time tg, the Q-output synchronizer gives a single signal to the And element 12, at the output of which a single signal appears. This signal is transmitted through the OR 13 element to the machine stop block 15.

В моменты времени , tg·, t₆ , t₇игольный цилиндр кругловязальной машины приводится в движение ручным способом.At times tg ·, t ₆ , t _{7, the} needle cylinder of a circular knitting machine is manually driven.

В момент времени t₇ синхронизатор 3 выдает нулевой сигнал по R - выходу, который устанавливает триггер 10 в рабочее состояние, а через элементы 12 и 13 снимает сигнал управления· с блока 15 останова машины.At time t _{7, the} synchronizer 3 gives a zero signal on the R - output, which sets the trigger 10 in working condition, and through the elements 12 and 13 removes the control signal · from the machine stop unit 15.

При несрабатывании рабочего органа единичный сигнал останова с выхода блока 14 проходит через элемент 13 на блок 15 останова машины.When the working body does not work, a single stop signal from the output of block 14 passes through element 13 to the machine stop block 15.

874798 6874798 6

С момента времени tg устройство работает в известном режиме выработки чулочно-носочного изделия по программе, заложенной в блоке 1 задания программы.From time tg, the device operates in the known mode of hosiery production according to the program laid down in block 1 of the program task.

Claims

The invention relates to the field of knitwear engineering, specifically, to software control devices for round caps that, for example, are used for the manufacture of hosiery. - A device for software control of a circular machine is known, containing a program setting block, the first input associated with the first output of the starting position control unit, the second with the first synchronizer output, and the output with the first synchronizer input, the second and third inputs of which connected, respectively, with the second output of the control unit of the starting position of the working bodies and with the output of the NAND element, the trigger recording, the first input through the NAND element connected to the second output of the block. tartovogo position working orrganov and to a sensor of the angular position of the needle cylinder, a second bus ground, and the third - the source voltage corresponding of logical Coy unit j controlling actuation of working bodies, electrically coupled to the second output of the synchronous jam and block the machine shutdown l. A disadvantage of the known device is the lack of information for the operator about the number of revolutions of the needle cylinder prior to the switching of the working parts, which is necessary for debugging work on the circular machine. The lack of information about the operator, when debugging the machine, stops it at a great number of turns before the switching of workers, organs, so as not to miss the moment of the start of switching at high speed. In this case, the product is brought into service before the switch begins with the help of a manual drive, which significantly increases the total debugging time and reduces the output of finished products. The purpose of the invention is to expand the technological capabilities and simplify the setup of the device. This goal is achieved by the fact that the device has a machine selective stopping unit consisting of a switch, a stop trigger, an OR element, two AND elements, and an NAND stop element, while the output of the N-stop element is turned off to the first input of the stop trigger, the second whose entrance is connected to the Zem bus, the third to the third output of the synchronizer, the fourth to the source of voltage corresponding to the logical unit, and its output ifcae outputs are separately connected to the inputs of both elements And, the second inputs to They are respectively connected to the third and fourth outputs of the synchronizer, with the output of the first element And electrically connected with the fourth input of the recording trigger,) the output of the second element AND through the per input of the OR element is connected to the machine stop, the second input of the element OR is connected to the unit control: working the working bodies, the first exit of the N-STOP element is associated; the output of the NAND element, the second of its inputs is connected to the output of the switch 1 of the inlet of which is electrically connected to the Aina Earth. FIG. 1 shows a functional diagram of the device; FIG. 2} A belt diagram of the operation of the device according to the outputs of the main elements. The device of the program control and the circular machine has 5 blocks of 1 task for the program, the first) stroke of which is connected to the first height of block 2 of the control of the starting position of the working bodies. The second) block 1 is connected to the first output of synchronizer 3, the first input of which is connected to the output of block 1} of the synchronizer 3 input H from the second input of block 2 and to the first input of the control logic AND –NE 4. The second input of element 4 is connected with the sensor 5 of the angular position of the needle cylinder, and the height - with C - the synchronizer input, 3 C - the trigger input b of the record and. : the first input of the logic element 7 AND-NOT of the block 8 of the machine’s stopping before the switching of the working element. The second input of the element 7 is connected by the 2 output of the switch 9 stop, the exit of which is connected to the logical 1 bus of the Earth bus and to the K - the input of the trigger 10 of the stop. R is the input of trigger 10 connected to the output of element 7, J is the input to the voltage source corresponding to the logical unit, C is the input to R to the synchronizer 3 output and to the first input of the logic element I. Second, the pulse input of the element .11 is connected to the single output of trigger 10. You have the code for element 11 connected to R - the trigger input of record b. The zero zero trigger code 10 is connected to the first input of an AND 12 logic element, the second input of which is connected to Q. - output of synchronizer 3. The output of element 12 is connected to the first input of logical element OR 13. Synchronizer 3 z-output through block 14 the control of operation of the working bodies is connected with the second input of the element OR 13. The output of the element OR 13 is connected to the block 15 of the machine stop. The electronic device for software control of the circular machine operates as follows. When voltage is applied to the circuit at time t, the block 2 controls the starting position of the working bodies and sets the synchronizer 3 to the starting state corresponding to the beginning of the production of the hosiery. At the time t, the round machine and the unit 1 of the program task are set to the starting connection. Through the trigger of recording, information is entered into the synchronizer 3, causing the appearance of a single signal at its Q output for two single steps of the monitored sensors 5 of the angular position of the needle cylinder, before giving the command to switch the working member. At time t, the switch 9 is triggered and sends a single signal to the second input of the element NE-7. When a single signal appears at the output of the control element IS-NOT 4, a zero signal appears at the output of element 7, switching the trigger 10 in zero state. At the zero output of trigger 10, a single signal appears that prepares the AND 12 element to trigger. By a negative voltage drop at the unit output of the trigger 10, the element 11 is switched, and at the same time the trigger of the record recording is switched, as a result of which additional information for the Q output is written to the synchronizer 3. In this case, the signal at the Q - output of the synchronizer for the Vits is already four steps away from the moment of switching the working organ. At time tg, the synchronizer on the Q output gives out a single signal to element 12 I, at the output of which a single signal appears. This signal is transmitted through element OR 13 to unit 15 to stop the machine. At times t. The tg-, tg, t needle cylinder of a circular machine is driven manually. At time t, the synchronizer 3 outputs a zero signal on the R-output, which sets the trigger 10 to the operating state, and via elements 12 and 13 removes the control signal from the machine 15 stop unit. When the working body fails, a single stop signal from the output of block 14 passes through element 13 to block 15 of the machine’s stop. From the moment of time tg, the device has been operating in a known mode of production of a hosiery according to a program embedded in block 1 of the program task. The invention The software control unit for the circular machine, containing the program setting block, the first input associated with the first output of the control unit of the starting position of the working bodies, the second with the first synchronizer output, and the output with the first synchronizer input, the second and third inputs of which are connected respectively with the second output of the control unit of the starting position of the working bodies and with the output of the NAND element, the record trigger, the first input through the NAND element connected to the second output of the block The starting position of the working bodies and the needle cylinder angular position sensor, the second to the earth bus, and the third to the voltage source corresponding to the logical unit, the working body actuation control unit, electrically connected to the second synchronizer output and the stop unit machines that, in order to expand the technological possibilities and simplify the set-up, it has a machine selective shutdown unit consisting of KOMiyiyTaTopa, a stop trigger, an OR element, two AND elements, and an AND element E is the stop, while the output of the NAND stop is connected to the first input of the stop trigger, the second input of which is connected to the Earth bus, the third to the third output of the synchronizer, the fourth to the voltage source corresponding to the logical unit, and its mutually inverse outputs are separately connected with the first inputs of both elements And, the second inputs of which are respectively connected with the third and fourth outputs of the synchronizer, with the output of the first element And electrically connected with the fourth input of the record trigger, the output of the second el And through the first input of the element OR is connected to the machine stop unit, the second input of the element OR is connected to the control unit of the working bodies operation, the first input of the AND-NOT element is connected to the output of the AND-NOT element, its second input is connected to the switch output, the input which is electrically connected to the earth bus. Sources of information taken into account in the examination 1. USSR author's certificate on application 2678970/28, 25.10.78,

FIG. /

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