SU608248A1

SU608248A1 - Doubling machine control device

Info

Publication number: SU608248A1
Application number: SU742048393A
Authority: SU
Inventors: Николай Федотович Ильинский; Вадим Владимирович Михайлов; Анатолий Афанасьевич Львов; Борис Михайлович Сарач; Дмитрий Алексеевич Степанов; Дмитрий Дмитриевич Румянцев; Альберт Ильич Асанов; Константин Георгиевич Суслов
Original assignee: Предприятие П/Я Г-4299; Московский Ордена Ленина Энергетический Институт
Priority date: 1974-07-26
Filing date: 1974-07-26
Publication date: 1978-05-25

Description

(54) УСТРОЙСТВО ДЛЯ УПРАВЛЕНИЯ ТРОСТИЛЫ1ЫМ СТАНКОМ(54) DEVICE FOR CONTROLLING A COUPLING MACHINE

релейных аппарагьв, рабочие обмотки которых включены между одним из полюсов питающей сети и разными ламел ми переключател , подвижный контакт которого подсоединен к другому полюсу питающей сети, а размыкающие контакты релейных аппаратов соединены последовательно между собой и с введенными двум регулируемыми источниками напр жени , между общим зажимом которых и каждой из общих точек двух размыкающих Контактов включена одна из обмоток возбуждени двигателей , соединенных с разматывающими катушками .relay devices, the working windings of which are connected between one of the poles of the power supply network and different switch lamellas, the moving contact of which is connected to the other pole of the power supply network, and the disconnecting contacts of the relay devices are connected in series with each other and with two adjustable voltage sources introduced, between a common terminal which and each of the common points of the two normally open Contacts included one of the field windings of the motors connected to the unwinding coils.

На фиг. 1 приведена принципиальна схема предложенного устройства; на фиг. 2 - принципиальна схема устройства с коммутацией силовой цепи двигателей тиристорами; на фиг. 3 - схема силовых цепей устройства; на фиг. 4 -схема включени рабочих обмоток релейных аппаратов; на фиг. 5 - схема включени С1бмоток возбуждени двигателей, соединенных с разматывающими катущками.FIG. 1 is a schematic diagram of the proposed device; in fig. 2 is a schematic diagram of a device with commutation of a motor power circuit using thyristors; in fig. 3 is a diagram of the power circuits of the device; in fig. 4 is a diagram of switching on the working windings of the relay apparatus; in fig. 5 is a circuit for switching on the S1 winding of motors connected to unwinding rolls.

Валы наматывающих катушек 1, 2 и, наприМер , восьми разматывающих катушек 3-10 соединены с валами индивидуальных двигателей посто нного тока, корн 1, 12 и 13-20 которых соответственно включены последовательно . Якори 13-20 двигателей, соединенных с разматывающими катушками 3-1Q, включены между кор ми 11 и 12 двигателей, соединенных с наматывающими катушками 1 и 2. Обмотки возбуждени 21 и 22 двигателей, соединенных с наматываюш,нми катушками I и 2, подключены к индивидуальным регулируемым блокам питани 23 и 24 соответственно. В цепь корей 11, is-20, 12 двигателей после-. довательно включены дватрехфазных выпр мител 25 и 26, подключенных на входе к выходам автономных трехфазных индуктивноемкостных источников тока 27 и 28 соответственно и выполненных, например, по мостовой схеме. Выпр мители 25 и 26 имеют общий выходной зажим, соединенный с подвижным контактом переключател 29, кажда из ламелей которого (фиг. I) подключена к разным зажимам корей 13-20 двигателей, соединенных с разматывающими катушками . Ламели переключател 29 (фиг. 2) подключены к разным зажимам корей 13-20 двигат«;лей, соединенных с раз У1атывающими катушками 3-10, через переходы управл ющий электрод - кагод тиристоров 30-38, аноды 1 ;оторых присоединены к общему выходному зажиму выпр мител й 25 и 26.The shafts of the winding coils 1, 2 and, for example, the eight unwinding coils 3-10 are connected to the shafts of individual DC motors, the roots 1, 12 and 13-20 of which are respectively connected in series. Anchors 13-20 of the engines connected to the unwinding coils 3-1Q are connected between the cortex 11 and 12 of the engines connected to the reel winding coils 1 and 2. The excitation windings 21 and 22 of the engines connected to the winding coil I and 2 are connected to individual adjustable power supplies 23 and 24 respectively. In the circuit of Korea 11, is-20, 12 engines after-. The two-phase rectifiers 25 and 26 connected at the input to the outputs of autonomous three-phase inductive-capacitive current sources 27 and 28, respectively, and made, for example, according to a bridge circuit, are included. The rectifiers 25 and 26 have a common output terminal connected to the movable contact of the switch 29, each of the lamellae of which (Fig. I) is connected to different terminals of the korea 13-20 of the engines connected to the unwinding coils. The lamels of switch 29 (Fig. 2) are connected to different terminals of korea 13-20 motor; lei, connected with U1atyvayushchy coils 3-10 times, through the control electrode transitions - kagod thyristors 30-38, anodes 1; are connected to the common output I will fix rectifier 25 and 26.

Устройство может содержать также релейные аппараты, количество которых на один больше Количества разматывающих катушек и каждый из которых включает замыкающий и размыкающий контакты. Рабочие обмотки 39 -- 47 релейных аппаратов (фиг. 4) включены между одним из полюсов питающей сети и разными ламел ми переключател 29, подвижный контакт которого подключен к другому полюсу питающей сети. Замыкающие контакты 39-47 релейных аппаратов (фиг. 3) подключают разные зажимы корей 13-20 двигателей , соединенных с разматывающими ка .туоиками 3-10, кобщему зажиму выпр мителей 25 и 26. Размыкающие контакты релейных аппаратов (фиг. 5) соединены пбследовательно между собой и с регулируемыми источниками напр жени 48 и 49, между общим зажимом которых и каждой из точек двух соседних размыкающих контактов включена одна из обмоток возбуждени 50- 57 двигателей, соединенных с разматывающими катушками 3-10. Причем обмотка возбуждени 50 относитс к двигателю с корем 13, обмотка возбуждени 51 к двигателю с Я14Ррем 14 и т. д.Устройство дл управлени тростильным станком работает следующим образом.The device may also contain relay devices, the number of which is one more than the number of unwinding coils and each of which includes make and break contacts. The operating windings 39 to 47 of the relay apparatus (FIG. 4) are connected between one of the poles of the supply network and the different lamellae of the switch 29, the moving contact of which is connected to the other pole of the supply network. The closing contacts 39-47 of the relay apparatuses (Fig. 3) connect different clamps of korea 13-20 motors connected to the unwinding ka.tooiki 3-10, to the general clamp of the rectifiers 25 and 26. The opening contacts of the relay apparatuses (Fig. 5) are connected in common between each other and with adjustable voltage sources 48 and 49, between the common clamp of which and each of the points of two adjacent break contacts is included one of the excitation windings 50-57 of the motors connected to the unwinding coils 3-10. Moreover, the excitation winding 50 relates to a motor with a coil of 13, an excitation winding of 51 to an motor with an AM 14Rr 14, etc. The device for controlling the rafter machine operates as follows.

Переключатель 29 делит электрическую схему устройства на две части (фиг. 1). Одна КЗ них относитс к наматывающей катушке и включает трехфазный индуктивно-емкостный источник тока 27, выпр митель 25, двигатель с корем И и обмоткой возбуждени 21, регулируемый блок питани 23, а также необходимое количество двигателей, соедннегнных с разматыэающими катушками, изделие с которых должно поступать к наматывающей катушке I. Друга часть схемы относитс к наматывающий катушке 2 и включает трехфазный индуктивно-емкостный источник тока 23, выпр митель 26, двигатель с корем 12 и обмоткой возбуждени 22, регулируемый блок питани 24, а также остальные двигатели, соединенные с разматывающими катушками (из общего их количества, имеющегос иа станке ). В схеме, показанной на фиг. 2, в делении схемы на две части кроме переключател 2 участвует один из тиристоров 30--38.The switch 29 divides the electrical circuit of the device into two parts (Fig. 1). One of them is a coil and includes a three-phase inductive-capacitive current source 27, a rectifier 25, a motor with a fire And an excitation winding 21, an adjustable power supply unit 23, as well as the required number of motors connected with the unwinding coils, the product from which arrive to the winding coil I. Another part of the circuit relates to the winding coil 2 and includes a three-phase inductive-capacitive current source 23, rectifier 26, engine with 12 and excitation winding 22, adjustable power supply unit and 24, as well as other engines connected to the unwinding coils (out of the total amount of the available machine ua). In the circuit shown in FIG. 2, in dividing the circuit into two parts, in addition to the switch 2, one of the thyristors 30--38 participates.

Рассмотрим случай, когда изделие с п ти разматывающих катушек должно поступать на наматывающую катушк) I. Подвиж:ный контакт переключател 29 устанавливают в положение , при котором в последовательную цепь выпр мител 25 и кор 11 двигател , соеди ненного с наматывающей катушкой 1, включаг ютс кори двигателей, соединенных с п тью разматывающими катушками 3-7. Цель корей 11, 13-17 обтекаетс током, величина которого задаетс трехфазным индуктивно-емкостным источником тока 27, благодар чему имеетс возможность формировани электромагнитных моментов двигателей, соединенных с катушками 1 и 3--7, за счет изменени их потоков возбуждени .Consider the case when the product with five unwinding coils should go to the winding reel) I. The movable contact of switch 29 is set in which the rectifier 25 and the engine 11 of the engine connected to the winding coil 1 are switched on in a sequential circuit measles engines connected to five unwinding reels 3-7. The target of koreas 11, 13-17 is flowed by a current, the value of which is set by a three-phase inductive-capacitive current source 27, so that it is possible to generate electromagnetic moments of motors connected to coils 1 and 3--7 by changing their excitation fluxes.

Claims

The tension of the product for each of the unwinding coils is determined by the value of the current specified by the three-phase inductive-capacitive current source 27, and taking into account the radius of the coil with the product, the value of its motor excitation flow. The product rewind speed is due to the characteristic of the motor connected to the coil I, which is formed, for example, by negative speed feedback, as a result of a change in the current flowing in its field winding 21, regulated by the power supply unit 23. To change the tension setting of the product it is enough to change the amount of current specified by the three-phase inductive-capacitive current source 27, the other part of the circuit, which relates to the winding coil 2 and in this case includes the measles 1 8-20 motors connected to the unwinding coils 8-10, work in the same way and independently of the first, if the three-phase inductive-capacitive current sources 27 and 28 are autonomous. The magnitude of the current flowing in the circuits of korea 12 and 18-20 motors of this part of the circuit is determined by a three-phase inductive-capacitive current source 28. To exclude from the operation of any motor connected to the unwinding coil, it is sufficient to short-circuit it. In the case under consideration, this will be required, for example, if only two unwinding spools are to be operated on the winding reel 2. In the circuit shown in FIG. 2, the common clamp of rectifiers 25 and 26 is positive. The circuit is divided into two parts by a thyristor, the control electrode of which is connected via a switch 29 to a common clamp of rectifiers 25 and 26. For the device shown in FIG. 2 positions of the mobile unit switch 29, the current at the first moment after switching on any one of the three-phase inductive-capacitive current sources 27 Iln 28 flows through the control electrode - thyristor cathode 35, which leads to unlocking. After this transition, the anode - satod thyristor 35 will shunt its control circuit. The switch 29 for the circuit in FIG. 2 requires less power than the circuit in FIG. 1, the rest of the schemes work similarly. If the product with five unwinding spools is to be fed to the take-up spool 1, the movable contact of the switch 29 must be set to the position shown in FIG. 4, when the relay apparatus is activated, the operating winding 44 of which is connected to the mains. This relay device closes contact 44 (Fig. 3) to open contact 44 (Fig.5). In p (the result of the closure of the contact 44 is the circuit is divided into two parts. One of them relates to the winding coil I and includes a three-phase inductive-capacitive current source 27, a rectifier 25, an engine with a cowl and winding 1 and 21, an adjustable power supply unit 23 and measles 13-17 engines connected to the five unwinding coils 3-7. Another part of the circuit is related to the winding coil 2 and includes a three-phase inductive-capacitive current source 28, rectifier 26, engine with a cortex 12 and excitation winding 22, an adjustable power supply unit 24 and measles 18-20 motors connected to unwinding coils 8-10. As a result of opening of contact 44, the circuit is also divided into two parts. Field windings of 50-57 engines connected to five unwinding coils 3-7 turn out to be connected in parallel to an adjustable voltage source 48 controlled by a part of the circuit related to the winding coil 1 and the winding of the 55- 57 motors connected to the unwinding coils 8-10 are connected in parallel to an adjustable voltage source 49 controlled by a part of the circuits These values are related to the winding coil 2. Therefore, the fluxes generated by the excitation windings 50-54 are determined by the voltage of the source 48, and the fluxes produced by the excitation windings 55-57 are due to the voltage of the source 49. In the proposed device it is possible to set and regulation of the rewindable winding over a wide range of tension and preservation of this tension in all operating modes of the machine, which significantly improves the quality of the finished product. The breakage of the rewindable product is sharply reduced, which allows to significantly increase the productivity of the process and reduce the waste of finished products. Claim 1. Device for controlling a rasting machine with two winding and several unwinding rolls, the rollers of which are connected to the shafts of individual DC motors, in which the field windings are connected to the individual regulated power supply units and the measles are connected in series with each other and with the three-phase rectifier connected at the input to the output of a three-phase inductive-capacitive tone source and made, for example, by a bridge circuit, (made by the fact that, in order to simplify, To increase reliability and increase productivity, it contains an additional three-phase rectifier connected in series to the motor circuit, connected at the input to the output of an additional inductive-capacitive current source and made, for example, according to a bridge circuit, and a switch, for example, a slider, and rectifiers have a common output terminal connected to a moving contact of the switch, each of the lamellae of which is connected to different terminals of the motor cores connected to the unwinding coils, and the other two output terminals of the rectifiers are connected to the motors of the motors connected to the winding rollers.

2. The device according to claim I, characterized in that the switch lamellae are connected to the terminals of the motors, connected to the unwinding coils, through the control electrode-to-thyristor transitions, the anodes of which are connected to the common output terminal of the rectifiers.

3. The device according to claim 1, characterized in that each of the nests of the motor terminals, connected to the unwinding coils, is connected to the common output terminal of the rectifiers through the closing contact of one of the relay devices, the operating windings of which are connected between one of the supply network terminals and the different lamel mi switch.