• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An apparatus for feeding wire at great distances having wire-feeding mechanisms connected by thyristor stages with phase control to generators of ignition pulses, and supplied by a common supply bus to a speed stabilizer in the first wire-feeding device, connected to the wire-feeding mechanism and the generator of ignition pulses. In a first embodiment the output of the generator of ignition pulses of the first wire-feeding device is connected by means of a synchronization bus to the inputs of the generators of ignition pulses of the second and the next-following wire-feeding devices. In a second embodiment the inputs of the generators of ignition pulses of the second and the next devices are connected to the outputs of formers of synchronizing pulses, the inputs of which are connected to one of the supply buses.
    公开号:SU1097462A1
    申请号:SU807771044
    申请日:1980-02-04
    公开日:1984-06-15
    发明作者:Алберт Самоковлийски Давид；Симеонов Ангелов Ангел；Александров Иванов Димитьр；Георгиев Пунчев Симеон
    申请人:Институт По Техническа Кибернетика И Роботика (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to devices for feeding wire over long distances for welding in a protective environment, driven by a DC motor operating in the interrupted current mode. A device for feeding the wire is known, comprising a wire feeding mechanism, a thyristor stage, an ignition impulse generator and a speed stabilizer (USSR author's certificate No. 582927, cl. B 23 K 9/12, 1974). The drawbacks of the device are that with a series connection of individual mechanisms, a complex automatic control system is obtained, whose operation is unstable. In addition, the regulation of the supplied energy to the motors is only a function of the current of the first current supply mechanism and requires a greater gain in each of the following regulators, which also causes unstable operation. A decrease in this coefficient would lead to a different redistribution of the load at different speeds, since the functional relationship between the individual controllers does not depend on the speed. Finally, the presence of a regulator to each feeding wire mechanism complicates, increases the cost of the system and reduces its overall reliability. The purpose of the invention is to provide a device for feeding the wire over large distances with a simplified scheme, higher control quality, stable operation, and the same load of individual motors at all speeds without mechanical slippage with higher reliability. The goal is achieved by the fact that in a device for feeding wire over long distances, containing mechanisms for feeding wire connected through phase controlled thyristor cascades to the start-up generators and to the power supply wagons, the first mechanism for feeding through the speed stabilizer is connected to the input of the start-up generator, the output of the starting generator of the first feeding mechanism is connected via a synchronization bus to the inputs of the starting generators of the second and subsequent feeding mechanisms. In another embodiment, the goal is achieved in that in the device the inputs of the second and subsequent feed initiator generators are connected to the corresponding outputs of the synchronizing pulse shapers, the inputs of which are connected to one of the power rails. Moreover, in the second variant, the clock pulse shaper can be performed on a resistor connected in series to one of the power rails, as well as on a transformer whose primary winding is connected in series to one of the power rails. The advantages of the invention are that the unlocking phase of the thyristor in the controller of the first device depends not only on the load, but also on the speed, and it results in a combination of individual controllers with respect to both current and speed. On the other hand, the operation of the motor in the interrupted current mode creates the falling characteristics of the electric drive of the second and following mechanisms, and this prevents mechanical slippage and by changing the speed (higher or lower than the speed of the first motor) creates conditions for such a change in the length of the electrode wire between the individual mechanisms, which evens load of individual engines. After leveling the load of the individual wire feed mechanisms, the speed of the following mechanisms is aligned with the speed of the first wire feeder, which is decisive for the quality of welding. The absence of speed stabilizers or tracking systems in the second or subsequent wire feeders leads to more stable operation, since otherwise there would be a system for automatic level control composed of separate closed systems for automatic control connected by complex connections. variable mechanical coupling and electrical feedbacks. The absence of speed stabilizers or tracking systems in the second or subsequent devices also leads to simplification, cheaper controls and higher overall reliability. In this way, two or three or more wire feeders can be connected. FIG. 1 shows three series-connected mechanisms for wire feeding with a special synchronized -1 g bus bar; in fig. 2 - the same, with synchronization of the thyristor cascades with the beginning of the current and pulses of the first motor; in fig. 3 and 4 - execution of synchronizing pulse shapers; in fig. 5 and 6, the characteristics of the first and subsequent mechanisms for wire feeding. The first wire feeder 1 is connected to subsequent wire feeders 2 by means of a mechanical connection 3, which is an electrode wire coming from the coil 4, and two electrical connections 5 and 6, which are feeding rails. In addition, the devices (Fig. 1) are also connected to the sync bus 7. Each wire feeder 1 and 2 each contains one mechanism for feeding the wire 8, a thyristor stage 9 and a start generator 10. The start generator 10 has an input 12 on which synchrocating pulses, an output 13, to which the ignition pulses go, and an output 14, to which the synchronizing pulses go. The last entry is not available,; only in one case in the first wire feeder 1. The first wire feeder 1 also contains a Speed stabilizer 15, the input of which is connected to the wire feeder 8 and the output to the start 16 of the start generator 10. The output 13 of the start generator 10 each device for feeding the wire 1 or 2 is connected to the thyristor cascade 9, and the thyristor cascade 9 with the mechanism for LADachi wire 8, feeding its motor. The inputs 12 of the start-up generators 10 of the second and subsequent wire feeders 2 are connected via a synchronization bus 7 to the clock output 14 of the start generator 10 of the first wire feeder 1 or to the output of the clock generator 17 through which one of the feed lines 5 or 6 passes.
    The drivers of the clock pulses 17 may have a resistor 18 at their input connected in series with the supply 5 or 6, and in such a case they will react to a voltage drop in that resistor. The formers of the synchronizing pulses 17 may have a current transformer 19 instead of a resistor.
    The speed of the wire feed mechanism 8 of the first wire feed device 1 and the speed of the electrode wire at the welding site is stabilized by the speed stabilizer 15. Through the synchronization bus 7 or feed 5 or 6 and the sync pulse generator 17, all the start-up generators simultaneously excite, generate ignition pulses and the thyristors of the thyristor cascades are simultaneously unlocked 9. The motors have an electric time constant such that they operate in the interrupted current mode. This, as well as the absence of stabilizers, provides the falling characteristics of the motors of the mechanisms for feeding the wire 8 of the second and subsequent devices for feeding the wire 2.
    Assume that the given speed is l5d. Then the operating point A of the first device for
    wire feed 1 is somewhere along the horizontal line with ordinate iod. Suppose that the first wire feeder 1 has stretched and pulled most of the wire between itself and the second wire feeder 2. Then device 2 is less loaded and its operating point B is on the characteristic that passes through point A. If the speed taller, it gradually begins to apply a pushing force on an ever larger part of the wire in front of itself and thus more load, unloads the first wire feeder 1 until both devices are set to slave Look at the point A where they are equally loaded. Conversely, if the second wire feeder 2 is more loaded and its operating point is C, it moves at a slower speed, and the first wire feeder 1, moving at a faster speed, pulls an increasing part of the wire between itself and the second device supplying wires 2 and thus more and more loading and unloading the second wire feeder 2 until both are installed at operating point A. Similarly, the effect of subsequent wire feeders that have the same characteristics As a second device for feeding the wire 2.
    All thyristor cascades 9, starting generators 10 and speed regulator 15 of the first wire feed device 1 can be located in the last wire feed device closest to the coil 4 or in the welding current source. Then the connection between them is carried out according to the scheme of FIG. one.
    The implementation of a delay for additional correction may occur in. igniter pulse 10 of the first device for feeding wire 1 - output 14 or in the driver clock pulses 17, or in each of the pulse trigger generators 10 of the second
    and subsequent wire feeders 2.
    It is recognized as an invention according to the results of the examination carried out by the Office for the Invention of the People’s Republic of Bulgaria.
    权利要求:
    Claims (2)
    [1]
    1. Device for feeding wire over long distances, containing mechanisms for feeding wire connected through thyristor cascades with phase control to the start generators and to the power buses, the first mechanism for feeding through the speed regulator is connected to the input of the start generator, characterized in that the output 14, the start generator of the first feed mechanism 1 is connected via a synchronized bus 7 to the inputs of the 12 start generators 10 of the second and subsequent feed mechanisms 2.
    [2]
    2. A device for feeding wire over long distances, containing mechanisms for feeding wire connected through thyristor cascades with phase control to the start generators and to the power buses, the first mechanism for feeding through the speed regulator is connected to the input of the start generator, characterized in that the inputs 12 start-up generators 10 of the second and subsequent mechanisms for supplying 2 are connected to the corresponding outputs of the synchronizing pulse shapers 17, the inputs of which are connected to one of the power buses 5 or 6.
    类似技术:
    公开号 | 公开日 | 专利标题
    US4261500A|1981-04-14|Modular apparatus for the feeding of electrode wire through great distances
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    US1009831A|1911-11-28|Electric distribution.
    JPH07118949B2|1995-12-18|Motor drive bias voltage setting method
    SU640412A1|1978-12-30|Arrangement for frequency control of induction electric motor
    同族专利:
    公开号 | 公开日
    FI800326A|1980-08-10|
    CA1151271A|1983-08-02|
    SE8000709L|1980-08-10|
    JPS55135056A|1980-10-21|
    FR2448412A1|1980-09-05|
    DE3004323A1|1980-09-25|
    US4305537A|1981-12-15|
    IT8047827D0|1980-02-06|
    GB2043955B|1982-12-22|
    BR8000805A|1980-10-29|
    IT1145257B|1986-11-05|
    AU535016B2|1984-03-01|
    NL8000749A|1980-08-12|
    FR2448412B1|1985-03-22|
    BE881583A|1980-05-30|
    NO800341L|1980-08-11|
    AT374061B|1984-03-12|
    GB2043955A|1980-10-08|
    ES488324A1|1980-09-16|
    AU5530080A|1980-08-14|
    SE453576B|1988-02-15|
    JPS6240270B2|1987-08-27|
    CS263451B1|1989-04-14|
    ATA46280A|1983-07-15|
    AR224886A1|1982-01-29|
    DK53380A|1980-08-10|
    MX149997A|1984-02-27|
    BG29025A1|1980-09-15|
    PL221911A1|1980-11-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3124290A|1960-10-27|1964-03-10|figure|
    US3452261A|1965-01-22|1969-06-24|Cigardi Spa O M C S A Off Mec|Torque equalizing control arrangement for a series of driven units|
    US3387759A|1967-02-24|1968-06-11|Ferdinand C. Stedman|Wire feeding means|
    JPS4938421B1|1968-12-26|1974-10-17|
    BG24442A1|1975-09-24|1978-03-10|Iski Samokovli|Device for modular feed of electrode bodies at great distances|
    JPS53111373U|1977-02-14|1978-09-05|BG31835A1|1981-04-30|1982-12-15|Angelov|A device for feeding wire at great distances|
    JPS6326369Y2|1982-07-27|1988-07-18|
    JPS6096351U|1983-12-06|1985-07-01|
    EP0447583A1|1990-03-20|1991-09-25|N I S pri VMEI " LENIN"|Apparatus for feeding electrode wire|
    GB2259493B|1991-09-13|1995-09-06|Hitachi Cable|Method and apparatus for drawing an elongate cable along a cable laying route|
    US11255479B2|2015-04-29|2022-02-22|Condux International, Inc.|System and method of mapping a duct|
    EP3538938A4|2016-11-14|2020-07-08|Condux International, Inc.|Transmission line installation system|
    CN110076412B|2019-04-16|2021-08-06|深圳市麦格米特焊接技术有限公司|Double-motor cooperative control method and device, motor controller and wire feeding system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BG7942430A|BG29025A1|1979-02-09|1979-02-09|Apparatus for passing of wire on big distances|
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