CN1298101C - Fibre machinery driving device - Google Patents

Fibre machinery driving device Download PDF

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Publication number
CN1298101C
CN1298101C CN 02151329 CN02151329A CN1298101C CN 1298101 C CN1298101 C CN 1298101C CN 02151329 CN02151329 CN 02151329 CN 02151329 A CN02151329 A CN 02151329A CN 1298101 C CN1298101 C CN 1298101C
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CN
China
Prior art keywords
spindle
aforementioned
motor
power supply
inverter power
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Expired - Lifetime
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CN 02151329
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Chinese (zh)
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CN1420621A (en
Inventor
山本真人
木野义浩
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Murata Machinery Ltd
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Murata Machinery Ltd
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Priority claimed from JP2001349682A external-priority patent/JP2003153589A/en
Priority claimed from JP2002245295A external-priority patent/JP2004084107A/en
Priority claimed from JP2002245296A external-priority patent/JP4081714B2/en
Priority claimed from JP2002245294A external-priority patent/JP4182538B2/en
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of CN1420621A publication Critical patent/CN1420621A/en
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Publication of CN1298101C publication Critical patent/CN1298101C/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/32—Driving or stopping arrangements for complete machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/244—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles each spindle driven by an electric motor
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

To solve the problem of a textile machine having a plurality of spindles being started/stopped individually that noise due to belt driving is significant when the drivers of respective spindles are operated synchronously using a timing belt and efficiency lowers due to energy loss, and that when an arrangement for operating respective drivers synchronously by controlling each of a plurality of inverters connected with one converter is employed, the arrangement is complicated because each drive motor is controlled by an inverter at all times and a software control performing synchronous operation control of respective spindles is required. Drive source of each spindle comprises a synchronous induction motor 53, 54,... connected in parallel with at least one inverter power supply 21.

Description

The drive unit of fibre machinery
Technical field
The present invention relates to have a plurality of spindles, start the drive unit of the fibre machinery that stops for each spindle.
Background technology
In having the fibre machinery of a plurality of spindles, requiring the quality of yarn with each spindle manufacturing or processing all is uniform for whole spindles.For example, yarn is carried out the false-twisting device of false twisting, described yarn carried out in the false twist processing machine of false twisting being equipped with, in the yarn of each spindle processing, can not produce twist irregularity.As false-twisting device, when being equipped with false twist processing machine with the belt-type false-twisting device of the nipper formula that the is referred to as twisting machine of two endless-belt crisscrosses configuration is that example is when describing, in order in this false twist processing machine, not produce twist irregularity, between two belts or between spindle or along with the progress of time, the rotary speed of endless-belt can not have deviation.Twist thread in the false twist processing machine of type having following formula nipper formula, in order to drive the nipper formula twisting machine drive motor that the nipper formula twisting machine that is located on each spindle disposes each spindle, in recent years, this has become known.In this known technology,, use a kind of DC brushless motor, so that make the rotary speed of endless-belt not have deviation as syncmotor as CD-ROM drive motor.Known general driving motor before above-mentioned known technology uses is compared with the mode that drives the nipper formula twisting machine of whole spindles via general timing cingulum, has advantages such as noise is low and energy-conservation.In addition, have and to carry out the starting of nipper formula twisting machine and the advantage that stops to each spindle.
But, above-mentioned known technology, for can carrying out the starting of nipper formula twisting machine and stop each spindle, each spindle all needs driver (converter), has the shortcoming of control system complexity.The present invention is improved the drive unit of fibre machinery in view of this problem.
Summary of the invention
Problem to be solved by this invention the following describes and solves the mechanism that problem is used as mentioned above.At first, have a plurality of spindles, each spindle is being started in the fibre machinery that stops, constituting the drive source of each spindle, the induction synchro motor of each spindle is being connected at least one inverter power supply with induction synchro motor.
Simultaneously, have a plurality of spindles, each spindle started in the fibre machinery that stops, constitute the drive source of each spindle with induction synchro motor, middle via be located on each spindle switching machinery with the induction synchro motor of each spindle be connected in parallel respectively employ and two inverter power supplies of the usefulness that turns round on.
In addition, each spindle is started in the fibre machinery that stops, constitute the drive source of each spindle with induction synchro motor, middlely the induction synchro motor of each spindle has been connected to respectively in parallel employs, turn round with on three inverter power supplies that reach the handing-over usefulness between them via being located at switching mechanism on each spindle.
And then, have a plurality of spindles, each spindle is started in the fibre machinery that stops, have running and use inverter power supply with assisting with inverter power supply, constitute the drive source of each spindle with induction synchro motor, aforementioned two inverter power supplies are connected on the induction synchro motor of each spindle respectively in parallel, between the induction synchro motor of aforementioned two inverter power supplies and aforementioned each spindle, be provided with respectively and one of select in two inverter power supplies to be connected to the switching mechanism of using on the induction synchro motor of aforementioned each spindle, assigned frequency when aforementioned auxiliary output frequency with inverter power supply is set to aforementioned running with the common running of inverter power supply, and, in order to utilize aforementioned auxiliary induction synchro motor, set the output voltage values of aforementioned auxiliary converter power supply to such an extent that be higher than the output voltage values of the inverter power supply of aforementioned running usefulness with aforementioned at least one spindle of inverter power supply starting.
In addition, in above-mentioned fibre machinery drive unit, make aforementioned running synchronous each other with inverter power supply and aforementioned auxiliary output frequency with inverter power supply.
Simultaneously, in the drive unit of above-mentioned fibre machinery, the control device that is connected with above-mentioned a plurality of switching mechanisms by control line is equipped with, this control device is equipped with the connection prohibition unit, described connection prohibition unit surpass with aforementioned auxiliary with inverter power supply can the while across-the-line starting spindle number, a plurality of switching mechanism select aforementioned auxiliary when using inverter power supply, for having selected aforementioned auxiliary spindle to forbid this spindle and aforementioned auxiliary being connected with inverter power supply with inverter power supply above behind the aforementioned spindle number.
And then as in described fibre machinery drive unit, aforementioned control device is equipped with and shows the display part of forbidding aforementioned connection.
Simultaneously, in the drive unit of described fibre machinery, aforementioned control device is equipped with the whole spindles starting control parts that whole induction motors of the aforementioned a plurality of spindles of starting are used, and, in aforementioned a plurality of spindles the induction synchro motor of one of them spindle be stopped, under the state of the induction synchro motor of remaining spindle running, make the aforementioned induction synchro motor that stops spindle working the control part of employing of restarting once more.
In addition, in the drive unit of described fibre machinery, the aforementioned control part that starts once more auxiliary rises to the aforementioned induction synchro motor that stops spindle after the aforementioned assigned frequency with inverter power supply with aforementioned, switch the aforementioned switching mechanism that stops spindle, aforementioned running is connected on the aforementioned induction synchro motor that stops spindle with inverter power supply.
The drive unit of described said structure is started in such a way.Promptly, the state that stops from the whole induction synchro motor that makes a plurality of spindles, in whole switching mechanisms of a plurality of spindles, select the running inverter power supply, the whole induction synchro motor of a plurality of spindles is connected to running with on the inverter power supply, utilizes this running the whole induction synchro motor of a plurality of spindles to be turned round simultaneously with inverter power supply.Then, under the situation that the induction synchro motor that makes at least one spindle stops, utilize running to make the running of auxiliary converter power supply in advance with the assigned frequency of inverter power supply, the switching mechanism that switches the spindle that stops to make the induction synchro motor of the spindle that has stopped being connected with inverter power supply with auxiliary, if this induction synchro motor that stops spindle rising to assigned frequency, switch the switching mechanism that this stops spindle once more, the inverter power supply that will be connected with this induction synchro motor that stops spindle converting the running inverter power supply from auxiliary to inverter power supply.
And then, have a plurality of spindles, start in the fibre machinery that stops for each spindle, aforementioned a plurality of spindles are divided into a plurality of groups, in described each group, inverter power supply is set, simultaneously, constitute the drive source of each spindle, the induction synchro motor of each spindle is connected in parallel on the inverter power supply of the group under it with induction synchro motor.
In addition, in the drive unit of described fibre machinery, setting is equipped with the control device of restarting control part, described restart control part in such a way to the output voltage of aforementioned inverter power supply and aforementioned inverter power supply with control being connected of induction synchro motor of aforementioned spindle, receive a certain spindle induction synchro motor restart signal, but make the output voltage of the inverter power supply under this spindle rise to across-the-line starting voltage with steady running voltage, the induction synchro motor of this spindle is connected on this inverter power supply, through behind the official hour, the output voltage of this inverter power supply is dropped to steady running voltage.
In addition, in the drive unit of described fibre machinery, but in aforementioned control device, be provided with when the output voltage that makes a certain group converter voltage rises to across-the-line starting voltage, forbid other group inverter power supply the output voltage rising forbid control part.
And then, have a plurality of spindles, each spindle is started in the fibre machinery that stops, constitute the drive source of each spindle with induction synchro motor, each induction synchro motor has delta connection and star-star connection, and the centre is connected a plurality of spindles on the common inverter power supply via each corresponding wiring switching mechanism.
In addition, in the drive unit of described fibre machinery, setting is equipped with the control device of restarting control part, described restarting being connected of induction synchro motor that control part is controlled aforementioned each corresponding wiring switching mechanism and aforementioned inverter power supply and aforementioned spindle in such a way, promptly when receive that the induction synchro motor of restarting a certain spindle uses restart signal the time, wiring switching mechanism corresponding to the induction synchro motor of described spindle is switched to the delta connection side, the induction synchro motor of this spindle is connected on the aforementioned inverter power supply, through after the stipulated time, this wiring switching mechanism is switched to the star-star connection side.
Simultaneously, in the drive unit of described fibre machinery, aforementioned control device is equipped with whole spindle starting control parts, this control part is controlled aforementioned each corresponding wiring switching mechanism as follows, promptly, when receiving the whole spindle initiating signal of whole induction synchro motors of being used to start a plurality of spindles, aforementioned each corresponding wiring mechanism is switched to the star-star connection side, be connected with aforementioned inverter power supply via the induction synchro motor of aforementioned star-star connection aforementioned a plurality of spindles.
And then in the drive unit of described fiber mechanism, aforementioned control device disposes and surpasses the switching that mode that specified data do not switch to the delta connection side places restrictions on switching with aforementioned wiring switching mechanism and place restrictions on portion.
And, in described fibre machinery drive unit, be equipped with to show that the switching portion of placing restrictions on that utilizes aforementioned control device places restrictions on the display part of the spindle of aforementioned switching.
The effect of invention
The present invention is owing to having said structure, so can produce following effect.
That is, have a plurality of spindles, each spindle is being started in the fibre machinery that stops, constituting the drive source of each spindle, be connected at least one inverter power supply, control system is simplified by induction synchro motor with each spindle with induction synchro motor.Particularly, by using the drive source of induction synchro motor as each spindle, (1) the motor rotary speed does not have deviation between each spindle, (2) and not can produce velocity deviation along with the progress of time, (3) and then, when a spindle or several spindle are stopped, other spindle is stopped, under the state that keeps them intactly to rotate, the spindle that has stopped being started once more.
In addition, owing to motor each spindle is driven, need not timing cingulum etc., thereby can realize low noise, the energy loss that causes when not having belt drives becomes high efficiency system configuration.
Simultaneously, have a plurality of spindles, each spindle is started in the fibre machinery that stops, constitute the drive source of each spindle with induction synchro motor, by via be arranged on each spindle switching mechanism with the induction synchro motor of each spindle be connected in parallel respectively employ and two inverter power supplies of the usefulness that turns round on, control system is simplified.Particularly, by using the drive source of induction synchro motor as each spindle, (1) between each spindle, the rotary speed of motor does not have deviation, the velocity deviation that (2) avoid As time goes on producing, (3) and then, when can making a spindle or having only several spindles to stop, other spindle does not stop, and intactly keeps its running, and the spindle that has stopped being started once more.
In addition, owing to motor each spindle is driven, need not timing cingulum etc., thereby can realize low noise, the energy loss that causes when not having belt drives becomes high efficiency system configuration.
In addition, having a plurality of spindles, each spindle is started in the fibre machinery that stops.Constitute the drive source of each spindle with induction synchro motor, by the centre via be located at switching mechanism on each spindle be connected in parallel respectively employ and turn round with and between them on three inverter power supplies of handing-over usefulness, simplified control system.
Particularly, by using the drive source of induction synchro motor as each spindle, (1) between each spindle, the rotary speed of motor does not have deviation, the velocity deviation that (2) avoid As time goes on producing, (3) and then, when can making a spindle or having only several spindles to stop, other spindle does not stop, and intactly keeps its running, and the spindle that has stopped being started once more.
In addition, owing to motor each spindle is driven, need not timing cingulum etc., thereby can realize low noise, the energy loss that causes when not having belt drives becomes high efficiency system configuration.
In addition, in described invention, simplified control system is by using the drive source of induction synchro motor as each spindle, (1) between each spindle, the rotary speed of motor does not have deviation, the velocity deviation that (2) avoid As time goes on producing, (3) and then, when can making a spindle or having only several spindles to stop, other spindle does not stop, and intactly keeps its running, and the spindle that has stopped being started once more.
In addition, owing to motor each spindle is driven, need not timing cingulum etc., thereby can realize low noise, the energy loss that causes when not having belt drives becomes high efficiency system configuration.
And then, under the situation that a plurality of spindles are stopped, can making the starting once more continuously synchronously of described a plurality of spindle, shorten finish each spindle in the time of starting, pass through operating efficiency.
In described invention, with the auxiliary spindle that starts once more with inverter power supply, auxiliaryly carried out the transition to running smoothly with inverter power supply and used inverter power supply from this, the spindle that is stopped may be started once more.
Simultaneously, in described invention, when making that by limiting the spindle that surpasses across-the-line starting is in the same period counted, spindle can not be connected to auxiliary with on the inverter power supply, this is assisted protect with inverter power supply, and making it can overload.
And then, in described invention, the operator can know immediately since surpass the spindle number of across-the-line starting in the same period produced be under an embargo be connected to auxiliary with the spindle on the inverter power supply.
Simultaneously, in described invention, can carry out the starting simultaneously of a plurality of spindles and the independent starting of each spindle with little place capacity.
In addition, in described invention, in simplified control system, compare with the structure that the induction synchro motor of whole spindles is connected on the single inverter power supply, can also the reduction equipment capacity.This is because the platform number of the induction synchro motor that the platform number of the induction synchro motor relevant with of the present invention inverter power supply is correlated with the aforementioned converter that is connected whole spindle motor is compared, and can lack a lot of causes.For example, in the inverter power supply that connects whole spindles, when turning round usually, the capacity that needs X (kVA), when the spindle that stops for across-the-line starting need improve the output voltage of the power supply of converter a (a＞1) times, theoretically, place capacity became aX (kVA).In contrast, in the present invention, because the starting spindle is divided into m (m=2,3 ...) group, each group is provided with inverter power supply, so, the capacity of an of the present invention inverter power supply becomes X/m (kVA), the spindle that stops for across-the-line starting, only need be doubly the output voltage rising a of the inverter power supply of the group under this spindle, (1+ (a-1)/m) (kVA), shown in following mathematical formulae, total place capacity of inverter power supply of the present invention is less than aforementioned place capacity of all spreading movable all connections inverter power supply thereon so the place capacity total becomes X.
[mathematical formulae 1]
aX-X(1+(a-1)/m)
＝(X/m)(m-1)(a-1)＞0
As object lesson, connect in the inverter power supply of whole spindle motor in order, desired volume is 40 (kVA) when turning round usually, and the spindle that stops for across-the-line starting needs this inverter power supply output voltage is brought up to 2 times, in this example, place capacity becomes 80 (kVA).In contrast, in the present invention, for example whole spindles are divided into four groups, owing in each group inverter power supply is set all, so, the capacity of every inverter power supply of the present invention becomes 10 (kVA), because the spindle that stops for across-the-line starting, only need the output voltage of the inverter power supply of the group under this spindle is risen to 2 times, so, in this example, place capacity adds up to 50 (kVA), and total place capacity of inverter power supply of the present invention is littler than the place capacity of the inverter power supply of the whole spindles of aforementioned connection.
Simultaneously, by using the drive source of induction synchro motor as each spindle, (1) between each spindle, the rotary speed of motor does not have deviation, the velocity deviation that (2) avoid As time goes on producing, (3) and then, when can making a spindle or having only several spindles to stop, other spindle does not stop, and intactly keeps its running, and the spindle that has stopped being started once more.
In addition, owing to motor each spindle is driven, need not timing cingulum etc., thereby can realize low noise, the energy loss that causes when not having belt drives becomes high efficiency system configuration.
In addition, in described invention, when can starting the motor of the spindle that stops once more at an easy rate, can prevent to consume too much electric current.
Simultaneously, in described invention, in simplified control system, by using the drive source of induction synchro motor as each spindle, (1) between each spindle, the rotary speed of motor does not have deviation, the velocity deviation that (2) avoid As time goes on producing, (3) and then, when can making a spindle or having only several spindles to stop, other spindle does not stop, and intactly keeps its running, and the spindle that has stopped being started once more.
In addition, owing to motor each spindle is driven, need not timing cingulum etc., thereby can realize low noise, the energy loss that causes when not having belt drives becomes high efficiency system configuration.
And then, have the induction synchro motor of star-star connection and delta connection owing to use, and have the structure of wiring switching mechanism, so, can constitute whole drive unit simply.
In addition, in described invention, when the spindle that stops to be started at an easy rate once more, can also prevent to surpass required current drain.
Simultaneously, in described invention, can carry out whole startings simultaneously of a plurality of spindles, save energy with little place capacity.
And then, in described invention, be limited in contemporaneity and more than defined amount, restart relevant induction synchro motor, make it to switch to the delta connection side, can dwindle the place capacity of the drive unit of fibre machinery, so that save energy.
And in described invention, the operator can readily appreciate that owing in the same period having taken place to be under an embargo and carry out the spindle that delta connection connects to inverter power supply.
Description of drawings
Fig. 1, be the end view of false twist processing machine 1.
Fig. 2, be the nipper formula twisting machine 5,5 of first embodiment according to the invention ... the structure chart of drive unit.
Fig. 3, be nipper formula twisting machine 5,5 according to second embodiment of the present invention ... the structure chart of drive unit.
Fig. 4, be nipper formula twisting machine 5,5 according to the 3rd embodiment of the present invention ... the structure chart of drive unit.
Fig. 5, be nipper formula twisting machine 5,5 according to the 4th embodiment of the present invention ... the structure chart of drive unit.
Fig. 6, be nipper formula twisting machine 5,5 according to the 5th embodiment of the present invention ... the structure chart of drive unit.
Fig. 7, be nipper formula twisting machine 5,5 according to a sixth embodiment of the present ... the structure chart of drive unit.
Embodiment
Below with reference to the example that is used for false twisting processing form of implementation of the present invention is described.
The simple structure of false twist processing machine at first, is described with reference to Fig. 1.
Each spindle in false twist processing machine 1 is stretched by first feed roller 11 and second feed roller 12 that is configured in described first feed roller 11 downstreams from the yarns Y of yarn feeding package 16 unwindings.
Here, yarns Y is not only the yarn that is made of thermoplastic synthetic fibers such as polyester and polyamide, also comprises other yarn members.
Between these first, second feed rollers 11,12, from upstream side, set gradually thermal finalization heater 3, coldplate 4, and as the nipper formula twisting machine 5 of false-twisting device, with this heater 3 twisted yarns Y is heated to draft temperature, cools off the yarns Y that is heated by heater 3 with coldplate 4.Nipper formula twisting machine 5 is a kind of two endless- belts 51,52 to be right-angled intersection ground configuration, and yarn is clamped in cross section, utilizes the device of 51,52 pairs of yarn wiring twisting of endless-belt of two rotations.
Secondly, utilize 5 pairs of yarns Y twisting of nipper formula twisting machine, the yarns Y from first feed roller 11 to (heating region) the nipper formula twisting machine 5 becomes the twisted twisting state of adding.
In addition, between second feed roller 12 and the 3rd feed roller 13, secondary heater 8 is set, once more yarns Y is heated.But, do not use secondary heater 8 sometimes yet.Then, utilize oiling device 9 that yarns Y is carried out oil processing, batch coiling package 17,17 ... on.
Like this, false twist processing machine 1 is on each spindle, one side will be separated the draw ratio stretching of easypro tank Y with necessity from yarn feeding package 16, one side,, is processed into yarns Y and has crimpiness and inotropic bulky yarn by with this twisted thermal finalization that adds described yarns Y twisting with nipper formula twisting machine 5.
Below to nipper formula twisting machine 5,5 according to the present invention ... drive unit describe.In the present invention, for each of each spindle, nipper formula twisting machine 5,5 ... can start and stop.Below this structure is described.
At first, with reference to Fig. 2 first embodiment is described.
As shown in the drawing, a pair of belt 51,52 of the nipper formula twisting machine 5 in each spindle is wound on the drive pulley respectively advances, and the rotary speed of described belt 51,52 is by the rotary speed decision of motor 53,54.The motor 53,54 of each spindle is connected to respectively on the motor switch 55 of each spindle jointly, and each motor switch 55 is connected on the converter (inverter) 21 via public bus.That is the motor 53,54 of whole spindles ... be connected in parallel on the converter 21.
In this structure, be transformed into direct current from the electricity of source power supply (AC power) supply via converter 21 after, be transformed into the frequency of regulation, export to each spindle motor 53,54 ...
Here, to described motor 53,54 ..., adopt when starting as the induction motor entry into service, at the starting induction synchro motor of back that finish as the synchronous motor rotation.
At first, at when starting, driving transducer 21, drive the motor 53,54 of whole spindles simultaneously ..., little by little improve the frequency of described converter 21.Whereby, described motor 53,54 imports synchronously with low frequency, along with the increase of frequency, and motor 53,54 ... rotary speed improve.Rise to specified frequency so always.
Sometimes, in operation process, yarns Y is cut off sometimes, in this case, disconnects the switch 55 of motor of nipper formula twisting machine 5 of the spindle of this broken yarn, and the motor 53,54 of described spindle is promptly stopped.At this moment, this spindle is not tied a knot, restart once more to be wound up in the coiling package 17.When maintenance finishes, open the motor switch 55 of this spindle, whereby, utilize converter 21 to start the motor 53,54 of this spindle once more.
At this moment, from the frequency (assigned frequency) of the converter 21 output regulations of the motor 53,54 that drives other spindle, thereby just once more after the starting, the motor 53,54 of the spindle of this broken yarn produces slippages, turns round under asynchronous regime.In this state, produce torque, utilize this torque that this motor 53,54 is quickened as induction motor.On the other hand, the slippage of described motor 53,54 slowly reduces, vanishing soon.At this run-in synchronism state, do not produce torque as induction motor, described motor 53,54 rotates with other motor 53,54 synchronously with the torque rotation as synchronous motor.
As mentioned above, utilize this structure, needn't to each spindle converter be set, simplified control system.In addition, by the motor 53 of aforementioned each spindle, 54 ... as induction synchro motor, (1) belt between each spindle 51, rotary speed between 52 does not have deviation, (2) and, two belts 51 in the spindle, rotary speed between 52 does not have deviation, (3) and, can As time goes on not produce velocity deviation, (4) and then, can only make the nipper formula twisting machine 5 of a spindle or several spindles, 5 ... when stopping, other spindle is stopped, intactly keeping under the situation of its running, make the nipper formula twisting machine 5 of the spindle that stops, 5 ... starting once more.
In addition, because the nipper formula twisting machine 5,5 of each spindle ... across-the-line starting need not the timing cingulum, thereby reduces noise, can not produce the energy loss that causes because of belt drives, becomes high efficiency system configuration.
Below with reference to Fig. 3 to nipper formula twisting machine 5,5 ... second this embodiment of driving describe.
In this second embodiment, use two converters 21,22, drive nipper formula twisting machine 5,5 ... motor 53,54 is the same with aforementioned first embodiment, constitute with induction synchro motor, the motor 53 of each spindle, 54 are connected on the motor switch 55 respectively jointly, input side at this motor switch 55 is provided with diverter switch 56, a switched terminal 56a of this diverter switch 56 is connected on first converter 21 via the first public bus, after another switched terminal 56b is connected on the starting switch 57, be connected on second converter 22 via the second public bus.That is whole spindle motor 53,54 ... with respect to first converter 21, and be connected in parallel respectively with respect to second converter 22.
Described second converter 22 can be more small-sized than first converter 21.
At first, when starting, with the diverter switch 56,56 of whole spindles ... switch to switched terminal 56a side, drive first converter, drive the motor 53,54 of whole spindles simultaneously ..., the frequency of this first converter 21 slowly rises.Whereby, described motor 53,54 ... import synchronously with low frequency, along with frequency increases, motor 53,54 ... rotary speed increase.Rise to specified frequency so always.
In operation process, when yarns Y was cut off, the switch 55 of the motor of the nipper formula twisting machine 5 of the spindle of this yarn was disconnected, promptly stop the motor 53,54 of this spindle, at this moment, or not from the beginning again yarns Y is not wound up in the coiling package 17 once more this yarn knotting.After maintenance finishes, when the diverter switch 56 of this yarn is switched to terminal 56b side, connect the starting switch 57 of this spindle, and then connect this spindle motor switch 55, start second converter 22.
After the starting, the frequency of described second converter 22 slowly rises, and whereby, the motor of the spindle of broken string 53,54 imports synchronously with low frequency, and along with the increase of frequency, the rotary speed of motor 53,54 rises.Simultaneously, make the frequency of described second converter 22 rise to the frequency (assigned frequency) of first converter 21 that starts at present, when reaching this assigned frequency, the diverter switch 56 of this spindle is switched to switched terminal 56a side, and the rotation of this motor 53,54 is transferred on first converter 21.Like this, restart end, the motor 53,54 that was once once stopping and the motor 53,54 of other running ... rotation synchronously.
In addition, sometimes during utilizing that second converter 22 makes that the motor 53,54 of a certain spindle recovers in, other spindle generation broken yarn.In this case, the starting switch 57 of the spindle of back broken yarn is after the rotation of the diverter switch 56 of the spindle that switches first broken yarn, motor 53,54 is transferred on first converter 21, cut off the starting switch 57 of the spindle of first broken yarn, until the starting of second converter 22 is temporarily disconnected till stopping.Like this, control, make the motor 53,54 stopping not be connected, prevent the breakage of described motor 53,54 with second converter 22 in starting process just by utilizing starting switch 57.
As mentioned above, in second embodiment, second converter 22 is used for starting,, switches two converters 22,21, carry out restarting of nipper formula twisting machine 5 first converter, the 21 usefulness usefulness that synchronizedly runs.Like this, also can restart more reliably although needn't improve the performance of motor.
Utilize this structure, needn't to each spindle converter be set, simplified control system.In addition, by motor 53 with aforementioned each spindle, 54 adopt induction synchro motor, (1) belt between each spindle 51,52 ... there is not the rotary speed deviation, (2) and, two belts 51 in the spindle, rotary speed between 52 does not have deviation, (3) and, As time goes on there is not velocity deviation, (4) and then, can only make the nipper formula twisting machine 5 of a spindle or several spindles, 5 ... when stopping, other spindle is stopped, under the situation that intactly keeps its running, can make the nipper formula twisting machine 5 of the spindle that has stopped, 5 ... starting once more.
In addition, because the twisting machine 5,5 of each spindle ... directly drive with motor 53,54, so, need not the timing cingulum, thereby can reduce noise, do not produce the energy loss that causes because of the belt starting, become high efficiency system configuration.
Secondly, the 3rd embodiment of the starting device of nipper formula twisting machine 5,5 be described with reference to Fig. 4.
In the 3rd embodiment, use three converters 21,22,23, drive nipper formula twisting machine 5,5 ... motor 53,54 ... the same with aforementioned first embodiment, constitute by induction synchro motor.The motor 53,54 of each spindle is connected on the motor switch 55 respectively jointly, input side at this motor switch 55 is provided with diverter switch 56, a switched terminal 56a of this diverter switch 56 is connected on first converter 21 via the first public bus, after another switched terminal 56b is connected on the starting switch 57, be connected on second converter 22 via the second public bus, then, a remaining terminal 56c on being connected to starting switch 58 after, be connected on the 3rd converter 23 via the 3rd public bus.That is the motor 53,54 of whole spindles ... be connected in parallel respectively with respect to the 3rd converter 23.
The size of second converter 22 and the 3rd converter 23 can be littler than first converter 21.
At first, when starting, with the diverter switch 56,56 of whole spindles ... switch to switched terminal 56a side, drive first converter 21, drive the motor 53,54 of whole spindles simultaneously ..., the frequency of this first converter 21 slowly rises.Whereby, described motor 53,54 ... low frequency imports synchronously, along with the increase of frequency, and motor 53,54 ... rotary speed rise.Rise to specified frequency so always.
In operation process, when the yarns Y broken yarn, cut off the motor switch 55 of the spindle nipper formula twisting machine 5 of this broken yarn, promptly stop the motor 53,54 of this spindle, at this moment, do not carry out the knotting of this spindle, start anew once more yarn is wound up in the coiling package 17.When maintenance finishes, when the diverter switch 56 of this spindle is switched to terminal 56c side, connect the starting switch 57,58 of this spindle, and then connect the motor switch 55 of this spindle, start the 3rd converter 23.
After the starting, the frequency of the 3rd converter 23 is slowly risen, whereby, the motor of the spindle of broken yarn imports synchronously with low frequency, and along with the increase of frequency, the rotary speed of motor 53,54 rises.In addition, at this moment the second also entry into service of converter 22 is set to the frequency (assigned frequency) of regulation, when aforementioned the 3rd converter 23 reaches this handing-over frequency, the diverter switch 56 of this spindle switches on the switched terminal 56b, and the rotation of this motor 53,54 is transferred on second converter 22.
Simultaneously, slowly improve the frequency of second converter 22, when the frequency of this second converter 22 reaches the frequency (assigned frequency) of first converter 21 that is driving at present, the diverter switch 56 of this spindle is switched to switched terminal 56a place, with transferring to rotatably on first converter 21 of this motor 53,54.Drive like this, again and finish the motor 53,54 that was once stopping and other just on- stream motor 53,54 ... rotation synchronously.
In addition, sometimes, during starting the motor 53,54 of a certain spindle with the 3rd converter 23, broken yarn can take place in other spindle.In this case, formerly the diverter switch 56 of the spindle of broken yarn was switched the spindle starting switch 58 of broken yarn, the rotation of motor 53,54 transfers to after second converter 22 afterwards, till 23 startings of the 3rd converter temporarily stopped, the starting switch 58 that disconnects the spindle of described first broken yarn was disconnected.Like this, via starting switch 58 with disconnect the motor 53,54 that is stopping and starting in the middle of the mode of the 3rd converter 23 control, to prevent the breakage of this motor 53,54.
Similarly, with via starting switch 57 and the motor 53,54 that is stopping and just the mode do not connected of second converter 22 in starting process control, to prevent this motor 53,54 breakages.
As mentioned above, in the 3rd embodiment, the 3rd converter 23 has been to employ.Second converter 22 is a handing-over usefulness, and the 3rd converter 21 is a run-in synchronism usefulness, and three converters 23,22,21 switch successively, carry out restarting of nipper formula twisting machine.Like this, can not restart more reliably even do not improve the performance of motor yet.Particularly, when setting assigned frequency highly, be effective.
In this structure, each spindle needn't be provided with converter, simplified control system.In addition, make the motor 53,54 of aforementioned each spindle with induction synchro motor ... (1) rotary speed of the belt between each spindle 51,52 does not have deviation, (2) and, rotary speed between two belts 51,52 in the spindle does not have deviation, (3) and, As time goes on do not have velocity deviation.(4) and then, can only make the nipper formula twisting machine 5,5 of a spindle or several spindles ... when stopping, other spindle is stopped, intactly keeping its running, start the nipper formula twisting machine 5,5 of the spindle that has stopped once more ...
In addition, because the nipper formula twisting machine 5,5 of each spindle ... directly with motor 5,5 ... drive, do not want the timing cingulum, thereby, can realize low noiseization, the energy loss that does not have belt drives to cause becomes high efficiency system configuration.
In addition, a plurality of aforementioned handing-over converters can be set also, constitute nipper formula twisting machine 5,5 with the converter that amounts to more than four ... drive unit, be used for drive unit converter the platform number without limits.
The following describes the nipper formula twisting machine 5,5 of the 4th embodiment of the present invention ... drive unit.In the present embodiment, can start and stop, the following describes its structure for each spindle.
As shown in Figure 5, a pair of belt 51,52 of nipper formula twisting machine 5 uses motor (drive source) 153,154 drivings to advance respectively in each spindle, and the rotary speed (gait of march) of this belt 51,52 is by the rotary speed decision of motor 153,154.The motor 153,154 of each spindle is connected to respectively on the motor switch 155 of each spindle jointly, input side at described each motor switch 155 is provided with diverter switch 156, a switched terminal 156a of this diverter switch 156 is connected to via the first public bus (power line) on first converter 121 of running usefulness, and another switched terminal 156b is connected on second converter 124 of auxiliary usefulness via the second public bus (power line).
In other words, two converters 121,124 are connected to respectively on the motor 153,154 of each spindle in parallel, between the motor 153,154 of these two converters 121,124 and each spindle, be provided with respectively and one of select in described two converters 121,124, be connected to the diverter switch of using on the motor 153,154 of described each spindle 156.In addition, on each converter 121,124, connect the motor 153,154 of whole spindles respectively in parallel ...
Simultaneously, described first converter 121 and second converter 124 are connected on the AC power 120 jointly via main switch 128, between described second converter 124 and described main switch 128, add the starting switch 129 of second converter 124.
The motor 153,154 that on first converter 121, connects a plurality of spindles in parallel ... so rated capacity is greater than the capacity of second conversion 124, on the other hand, for output voltage, the voltage of second converter 124 is set than the voltage height of first converter.This be since with motor 153,154 ... relevant second converter 124 of restarting require higher starting torque, simultaneously, the output frequency of second converter 124 is set the assigned frequency of the common running of first converter 121 for.
In addition, for motor 153,154 ... when employing was turned round as induction motor in when starting, the starting three-phase alternating current induction synchro motor of back that finish as the synchronous motor rotation.In addition, in Fig. 5,, represent the power line of phase three-wire three with a solid line in order to simplify.
Simultaneously, converter 121,124, main switch 128, starting switch 129, and the motor switch 155,155 of each spindle ..., diverter switch 156,156 ..., communicate with control device 160 via the control line of representing with chain-dotted line among Fig. 5 and to be connected.
This control device 160 is equipped with the motor 153 that makes a plurality of spindles, 154 ... all work the whole spindle starting control part 160a that employ simultaneously, and, the motor 153 of at least one spindle in described a plurality of spindles, 154 stop, the motor 153 of remaining spindle, 154 ... make the motor 153 of the spindle that stops under the state of running, 154 ... rise once more employ restart control part 160b, and then, but also be equipped with when the spindle number that surpasses with second converter 124 across-the-line starting in the same period, and a plurality of diverter switches 156,156 ... when selecting second converter 124, after surpassing aforementioned spindle number, for selected spindle, forbid the connection prohibition unit 160c that this spindle is connected with second converter 124.
At first, when all spindle starts simultaneously, off-state at starting switch 129, and, whole motor switches 155,155 ... under on-state, connect main switch 128, whereby, whole spindle starting control part 160a output control signals from aforementioned control device 160, utilize this control signal, all the diverter switch 156 of spindle, 156 ... when being switched to switched terminal 156a side, first converter 121 is driven, the motor 153 of whole spindles, 154 ... driven simultaneously, so that the mode that the output frequency of described first converter 121 slowly rises utilizes the control part 160a of whole spindle startings of control device 160 to control first converter 121.Whereby, described motor 153,154 ... imported synchronously with low frequency, along with the increase of output frequency, motor 153,154 ... rotary speed rise.Like this, rise to assigned frequency.
The yarns Y broken yarn of a certain spindle in the middle of running, perhaps need to keep in repair, when forcibly cutting off yarns Y, take off from devices for taking-up that batching partways and do not reach the coiling package of full volume, the new bobbin of blank coil is installed, yarns Y is wound up on this new bobbin.Before maintenance, the motor switch 155 of this spindle is switched to disconnection, finished the back before carrying out the guide operation on the new bobbin in maintenance, switch starting 129, start second converter 124, then, connect the motor switch 155 of this spindle, utilization is from the connection signal of this motor switch 155, and from restarting the diverter switch 156 output switching signals of control part 160b to this spindle, this diverter switch 156 is switched to switched terminal 156b side.Whereby, this spindle 153,154 is connected on second converter 124, is started once more.
After on just being connected to second converter 124, the motor 153,154 of this spindle is to produce the asynchronous regime running of slippage.In this state, produce the torque as induction motor, utilize this torque, this motor 153,154 is quickened always.On the other hand, the slippage of the motor 153,154 of this spindle slowly reduces vanishing soon.Under synchronous regime, do not produce torque as induction motor, from the control part 160b that restarts that utilizes aforementioned control device 160 motor 153,154 of this spindle is connected to second converter 124, be loaded on the timer 160d metering stipulated time in this control device 160 in the utilization, slippage at the motor 153,154 of this spindle becomes the moment that begins after zero, promptly when motor 153,154 reached specified frequency, the diverter switch 156 of this spindle automatically switched to switched terminal 156a side.At this moment, the output frequency of the output frequency of first converter 121 and second converter 124 is synchronous, exports identical assigned frequency, and the rotation of this motor 153,154 is carried out the transition to described first converter 121 from described second converter 124.Like this, automatic restart finishes, the motor 153,154 that was once stopping and other motor that is moving 153,154 ... rotation synchronously.
In addition, when utilizing second converter 153,154 higher to drive the long time than first converter, 121 output voltages, surpass required electric current owing to can flow through, so, after being connected to aforementioned electric motivation 153,154 on second converter 124, up to the stipulated time that carries out the transition on first converter 121, in the time-amplitude of the slippage vanishing that is enough to reach motor 153,154, set in the short as far as possible time width (about several seconds).
In the present embodiment, when in a plurality of spindles, needing at the same time to keep in repair in the phase, can distinguish the motor 153,154 of in the same period using the described a plurality of spindles of second converter, 124 across-the-line startings ... in the same period turn round.Promptly, in during the motor 153,154 of a certain spindle that is necessary with the starting of second converter 124 to keep in repair, under the situation that other spindle also needs repairing, the motor 153,154 that needn't wait until the spindle that had before needed repairing is restarted just to finish and motor 153,154 usefulness second converter 124 across-the-line startings of the spindle that needs repairing that produces later can be connected gradually the motor 153,154 of each spindle that turns round.
Like this, in the present embodiment, when a plurality of spindles need repairing, can shorten the time that restarting of each spindle finishes, improve operating efficiency.
But, the motor 153,154 that can once directly start with second converter 124 ... the upper limit of platform number be restricted, this upper limit is by the decision of the capacity of second converter 124, along with the increase of this capacity, and motor 153,154 that can an across-the-line starting ... the platform number also increase.
Dispose respectively as the motor 153 that shows this spindle at the periphery of being located at the motor switch 155 on each spindle, the indicator light 165 of the display part of 154 operating condition, here, order can be N (N=2 with the maximum number of the spindle of 124 across-the-line startings of described second converter, 3,4 ...), just in case in the same period during the spindle of this maximum number of across-the-line starting, utilize the connection prohibition unit 160c of aforementioned control device 160 to control, even make the motor switch 155 of other spindle connect, because diverter switch 156 still disconnects, can not be connected on second converter 124, control indicator light 165 flickers of this spindle.
Utilize the flicker of this indicator light 165, be in the state of forbidding that this spindle connects to second converter 124 from notice visually, the operator in time realizes, the motor switch 155 by this spindle of temporarily disconnected extinguishes the flicker of the indicator light 165 of this spindle.Then, after the motor switch 155 of connecting this spindle soon once more, at this moment the indicator light 155 of this spindle words of also glimmering, illustrate that this spindle still is in the state of forbidding connecting on second converter 124, on the other hand, light when the indicator light 165 of this spindle, this illegal state is disengaged, the diverter switch 156 of described spindle switches to " connection ", and the motor 153,154 of described spindle is started once more.
Like this, control, make, protect it can not cause overload can once there not being the motor 153,154 more than (N+1) individual spindle to be attached thereto on second converter 124.
In addition, sometimes, motor 153,154 might be restarted failure, when current detector and Temperature Detector are installed, when these detectors detect above setting, be judged as " unusually " on this motor 153,154, make the indicator light flicker of this spindle, the notifying operation person.In addition, the diverter switch of described spindle forcibly can be switched to " closing ", exceed needed electric current to prevent from the motor 153,154 of this spindle, to flow through.
As mentioned above, in the present embodiment, second converter 124 is employed as rising, first converter 121 as run-in synchronism usefulness, is switched two converters 121,124 and carries out restarting of nipper formula twisting machine 5.Like this, needn't strengthen converter 121,124 and motor 153,154, just can reliably a plurality of spindles in the same period be restarted.
Secondly, to nipper formula twisting machine 5,5 according to the 5th embodiment of the present invention ... drive unit describe.In the present embodiment, for each spindle, can carry out nipper formula twisting machine 5,5 ... the mode of starting to stop to constitute.Below its structure is described.
As shown in Figure 6, in the present embodiment, a plurality of spindles are divided into a plurality of groups, each group is provided with converter 225,225 ... converter 225,225 in each group ... on be connected with in parallel belong to each the group converter 225,225 ... the nipper formula twisting machine drive motor 253,254 of spindle ... and the centre is organized converters 225,225 via public bus (power line) more with described ... be connected in parallel on the AC power 220.
Label 228 is to be installed at AC power 220 and full group converter 225,225 ... between main switch.
The a pair of belt 51,52 of the nipper formula twisting machine 5 of each spindle is driven by motor (drive source) 253,254 respectively and advances, and the rotary speed of described belt 51,52 is by the rotary speed decision of motor 253,254.The motor 253,254 of each spindle is connected to respectively on the motor switch 255 of each spindle jointly, and each motor switch 255 is connected on the converter 225 of the group under it via public bus.
In addition, main switch 228, the converter 225,225 of each group ... the motor switch 255,255 of each spindle ... and the converter 225,225 of each group ... with leap switch (ス パ Application ス イ Star チ) 271,271 ... communicate to connect on the control device 270 by the control line shown in the chain-dotted line among Fig. 6 respectively.Cross over switch 271 and be located on each of converter 225 of each group, by its connection, but output is transformed into the voltage of across-the-line starting with restarting signal with the output voltage of the converter 225 of correspondence.
In this structure,, middle via aforementioned a plurality of converters 225,225 from the electric power of AC power 220 supplies ... be transformed into the frequency of regulation, output to the motor 253,254 of each spindle ...
Here, for motor 253,254 ..., adopt when starting and turn round, start the three-phase alternating current induction synchro motor of back that finish as the synchronous motor rotation as induction motor.In addition, in Fig. 6, for simplicity, represent the power line of phase three-wire three with a solid line.
This control device 270 is equipped with: the motor 253 that makes a plurality of spindles, 254 ... all work the whole spindle starting control part 270a that employ simultaneously, and the motor 253 of the output voltage of control change device 225 and converter 225 and aforementioned spindle as follows, 254 connection restart control part 270b, described control mode is: the motor 253 of at least one spindle in described a plurality of spindles, 254 stop, the motor 253 of remaining spindle, 254 ... under the state of running, when the motor 253 that receives the spindle that stops, 254 restart signal the time, but the output voltage that makes the converter 225 of the group under this spindle rises to the voltage of across-the-line starting always from quiet rum voltage, with this motor 253,254 are connected on this converter 225, through after the official hour, the output voltage of this converter 225 is dropped to quiet rum voltage, and then this control device 270 comprises also that the output voltage of the converter 225 of forbidding other group rises forbids controlling not 270c.
At first, when all spindle starts simultaneously, leap (the ス パ Application) switch 271 of each group, 271 ... be in the state of disconnection, and whole motor switches 255,255 ... be in on-state, connect main switch 228, whereby, whole spindle starting control part 270a output control signals from aforementioned control device 270, utilize this control signal to drive the converter 225 of full group, 225 ... the motor 253 of whole spindles, 254 ... driven simultaneously, the whole spindle starting control part 270a that utilize control device 270 are so that this converter of whole group 225,225 ... the mode that slowly rises of output frequency control the converter 225 of each group, 225 ...Whereby, described motor 253,254 ... import synchronously with low frequency, along with the increase of output frequency, the rotary speed of motor 253,254 rises.Rise to specified frequency so always.
In operation process, the yarns Y broken yarn of a certain spindle perhaps must forcibly cut off under the situation of yarns Y owing to needing repairing, and the coiling package 17 less than volume of batching half is withdrawed from from devices for taking-up, the new bobbin of blank coil is installed, yarns Y is batched on this new bobbin.Before maintenance, the motor switch 255 of this yarn is switched to " disconnection ", finish in maintenance, before new bobbin yarn-setting work, connection is corresponding to the leap switch 271 of the converter of organizing under this spindle 225, whereby, send the output voltage alteration command from the control part 270b that restarts of control device 270 to the converter 225 of this group, on the motor that starts this spindle once more 253,254 o'clock, in order to improve torque, improve the output voltage of this converter 225, but set the voltage of the across-the-line starting higher for than quiet rum voltage.But it is constant that the output frequency of this converter 225 remains on aforementioned specified frequency.
Then, connect the motor switch 225 of this spindle, the motor 253,254 of this spindle is by the directly starting once more of the converter 225 of the group under it whereby.
Aforementioned converter 225 is configured to across-the-line starting voltage, output specified frequency, thereby after just starting once more, the motor 253,254 of the spindle of described broken string is to produce the asynchronous regime running of slippage.In this state, produce torque, utilize this torque that described motor 253,254 is quickened as induction motor.On the other hand, the slippage of this motor 253,254 slowly reduces, vanishing soon.In synchronous regime, do not produce torque as induction motor, after the motor switch 255 of connecting this motor 253,254, be loaded on the timer 2 70d in the control device 270 in the utilization, instrumentation official hour (across-the-line starting time), in the moment after the slippage vanishing just of this motor 253,254, will drop to quiet rum voltage from the voltage of converter 225 outputs.Starting finishes the motor 253,254 of the spindle of described broken yarn and the motor 253,254 of other spindle on the same group like this, once more ... rotation synchronously.
In addition, at starting motor 253 once more, 254 o'clock, in order to improve torque, the output voltage of the converter 225 of the group under this spindle is temporarily risen to across-the-line starting voltage from quiet rum voltage, but motor 253 when other spindle of same group, 254 ... during by the overlong time of across-the-line starting driven, can consume and surpass the electric current that needs, so, after the motor switch 255 of the spindle of connecting aforementioned broken yarn, drop to the across-the-line starting time of quiet rum voltage up to converter 225 with the group under this spindle, be motor 253,254 slippage reaches in the amplitude of zero time enough, sets short time-amplitude (about several seconds) as far as possible for.
Then, become after zero, with synchronous rotary speed rotation in the slippage of motor 253,254, need not accelerating torque as induction motor, the output voltage (quiet rum voltage) of the converter 225 during therefore with quiet rum forces down, and to save energy, reduces place capacity.
Sometimes, in the process of the motor 253,254 that starts a certain spindle once more, broken yarn can take place in other spindle of same group, in this case, can proceed the restarting of motor 253,254 of other described same group spindle.Promptly, when the motor 253,254 that starts a certain spindle once more, when in the aforementioned across-the-line starting time, connecting same group the motor switch 255 of other spindle, across-the-line starting time that instrumentation is new again from this time, detect the time that prolongs the torque starting voltage of keeping converter 225, proceed restarting to the motor 253,254 of this other spindle of same group, in this same group, shortening improves operating efficiency from the spindle of initial broken yarn the restarting the time of spindle of broken yarn to the end.
In addition, in restarting a certain group the process of motor 253,254, other group takes place under the situation of broken yarn, and the restarting of the motor 253,254 of the spindle of the broken yarn of described other group carries out after restarting of the motor 253,254 of described certain group finishes.Promptly, start a certain group motor 253,254 once more, in the time of aforementioned across-the-line starting, can connect leap switch 271 corresponding to the converter 225 of other group, that utilizes control device 270 forbids control part 270c, make the instruction of not sending the voltage that changes the converter 225 that outputs to other group, be located at the wrong indicator light flicker on the control panel etc. of aforementioned control device 270 from control device 270.In addition, this mistake indicator light extinguishes by turning off aforementioned leap switch 271.
Then, a certain group restarting of motor 253,254 finishes, through the aforementioned across-the-line starting time, when the output voltage of this converter of a certain group 225 drops to quiet rum voltage, connect leap switch 271 once more corresponding to the converter 225 of aforementioned other group, send the instruction that changes the voltage on the converter 225 output to described other group, the output voltage of the converter 225 of aforementioned other group is risen to across-the-line starting voltage.
Then, connect the motor switch 255 of this spindle, whereby, the motor 253,254 of this spindle is by the directly starting once more of the converter 225 of this other group.
Like this, by controlling the feasible converter 225,225 that can once not make more than two ... output voltage rise simultaneously, can the reduction equipment capacity.
As mentioned above, in the present embodiment, needn't on each of each spindle, converter be set, converter 225,225 be set for each group ..., can simplified control system.Simultaneously, with the motor 253,254 of induction synchro motor as aforementioned each spindle ... (1) belt between each spindle 51,52 ... between do not have velocity deviation, (2) two belts 51,52 in spindle ... between do not have velocity deviation, (3) and, As time goes on, velocity deviation can not take place, (4) and then, can only make the nipper formula twisting machine 5,5 of a spindle or several spindles ... when stopping, do not make other spindle stop, remaining untouched and keep its running, make the nipper formula twisting machine 5,5 of the spindle that stops ... starting once more.
In addition, owing to use motor 253,254 ... directly drive the nipper formula twisting machine 5,5 of each spindle ..., need not timing cingulum etc., thereby can reduce noise, become high efficiency system configuration less than the energy loss that causes because of belt drives.
In addition, in the present embodiment, can change converter 225,225 respectively for each group ... output frequency, whereby, each group can be made the different product of twisting count, can carry out the production of multi-varieties and small-batch.
And then, in the present embodiment, to compare with the structure that the motor of whole spindles is connected on the single converter in parallel, the capacity of equipment is much smaller,
Therefore, start the motor 253 that has stopped once more, under 254 the situation, when the motor parallel connection of aforementioned whole spindles must be connected on the converter, but need rise to the output voltage of this converter from quiet rum voltage the voltage of across-the-line starting, in contrast to this, in the present embodiment, but as long as the output voltage of the converter 225 of a capacity is risen to the voltage of across-the-line starting from quiet rum voltage, the climbing of its distribution power is much smaller, thereby, compare with the structure that the motor of whole spindles is connected on the single converter in parallel, but the structure reduction equipment capacity of present embodiment.
In addition, in order to start the motor of each spindle individually once more, can consider to turn round and be connected in parallel respectively on each spindle motor with converter and auxiliary supply lines with the converter dual system, but in this structure, to each spindle, be necessary to be provided with to the diverter switch switched between the system and be installed at this diverter switch and auxiliary with the starting switch between the converter.In contrast, in the present embodiment,, reduce cost owing to,, reduce the number of parts so need not these diverter switches and starting switch with the supply lines of triangular web process to the motor 253,254 of each spindle.
Below to according to a sixth embodiment of the present nipper formula twisting machine 5,5 ... this describing of driving.In the present embodiment, can carry out nipper formula twisting machine 5,5 to each elastic cord ... starting and stop.Below its structure is described.
As shown in Figure 7, a pair of belt 51,52 of nipper formula twisting machine 5 is driven by motor (drive source) 353,354 respectively and advances in each spindle, and the rotary speed (gait of march) of this belt 51,52 is by the rotary speed decision of motor 353,354.Individual motor 353 (354) has star-star connection 361 and delta connection 362 respectively, the motor 53,54 of each spindle is connected on the motor switch 355 of each spindle jointly via each corresponding wiring diverter switch 59,59 respectively, and, each motor switch 355 is connected on the converter 321 via public bus (power line), and the motor 353,354 of qualified spindle is connected on the converter 321 in parallel.
And converter 321 is connected on the AC power 320 via main switch 328, in this structure, is transformed into the frequency of regulation via converter 321 in the middle of the electricity of AC power 320 confessions, to the motor 353,354 of each spindle ... output.
In addition, for motor 353,354 ... employing is turned round as induction motor when starting, the three-phase alternating current induction synchro motor that rotates as synchronous motor after starting is finished.In addition, in the drawings, for simplicity, represent the power line of phase three-wire three with a solid line.
And, converter 321, main switch 328, the motor switch 355,355 of each spindle ... and the wiring diverter switch 359,359 corresponding with each motor 353,354 ..., the control line of representing via the chain-dotted line among Fig. 7 communicates to connect on the control device 380 respectively.
This control device 380 is equipped with whole spindle starting control part 380a, restarts control part 380b, and switches restrictions 380c.
All spindle starting control part 380a is at the whole motor 353,354 that receive the whole spindles of starting ... with whole spindle initiating signal the time, will be corresponding to the motor 353,354 of each spindle ... wiring switch and can cut down 359,359 ... all switch to star-star connection 362 sides, with via this star-star connection 362,362 ... motor 353,354 with aforementioned a plurality of spindles ... with the motor 353,354 of converter 321 ways of connecting control corresponding to each spindle ... wiring diverter switch 359,359 ...
In addition, restart control part 380b, when it receives the motor 353 of restarting a certain spindle, 354 usefulness restart signal the time, will be corresponding to the wiring diverter switch 359 of the motor 353.354 of this spindle, 359 switch to delta connection 361 sides respectively, motor 353 with this spindle, 354 are connected on the converter 321, through after the official hour, with this wiring diverter switch 359,359 switch to star-star connection 362 sides, will be corresponding to the motor 353 of each spindle, 354 pull-switch 359,359 ... and the motor 353 of converter 321 and aforementioned spindle, 354 connect.
Simultaneously, switch restrictions and limit as follows, that is, when restarting the motor that stopped 353,354, do not make aforementioned wiring diverter switch 359,359 above defined amount ... switch to delta connection 361 sides.
At first, when all spindle starts simultaneously, motor switch 355,355 with whole spindles ... connect, then, connect main switch 328, whereby, motor 353,354 corresponding to whole spindles ... wiring diverter switch 359,359 ... switch to switched terminal 359b side, be connected respectively to star-star connection 362,362 ... on the time, converter 321 is driven, the motor 353,354 of whole spindles ... driven simultaneously, so that the mode that the output frequency of this converter 321 slowly rises, by control device 380 control change devices 321.Whereby, this motor 353,354 ... import synchronously with low frequency, along with the increase of output frequency, motor 353,354 ... rotary speed rise.Rise to specified frequency always.
In operation process, a certain spindle broken yarn, or because of under the situation about must maintenance forcibly yarns Y being cut off is backed off the coiling package 17 less than volume of batching half from devices for taking-up, empty new bobbin is installed, and yarns Y is batched on this new bobbin.Before maintenance, the motor switch 355 of this spindle is switched to " disconnection ", finish in maintenance, before hanging the silk operation on the new bobbin, the motor switch 355 of described spindle is connected, whereby, that utilizes aforementioned control device 380 restarts the wiring diverter switch 359,359 of control part 380b with this spindle ... switch to switched terminal 359a side respectively, be connected on the delta connection 361,361, directly start the motor 353,354 of this spindle with converter 321 once more.
After just directly entering converter 321, the motor 353,354 of this spindle turns round under the asynchronous regime that produces slippage.Produce torque in this state, utilize this torque to quicken this motor 353,354 as induction motor.On the other hand, the slippage of the motor 353,354 of this spindle slowly reduces vanishing soon.In this synchronous regime, do not take place as the torque of induction motor from the time with the restarting control part 380b the motor 353,354 of this spindle directly is linked into converter 321 of aforementioned control device 380, with the timer 380d instrumentation official hour that is installed in this control device 380, the moment after the slippage vanishing just of the motor 353,354 of this spindle, promptly.When motor 353,354 reaches specified frequency, automatically switched to switched terminal 359b side respectively corresponding to the wiring diverter switch 359,359 of the motor 353,354 of this spindle, be connected in the star-star connection 362,362.At this moment, the torque that this motor 353,354 does not produce as induction motor becomes with the torque as synchronous motor and is rotated, and rotates synchronously with the motor 353,354 of other spindle.
Under the situation that a plurality of spindles break simultaneously, by motor 353,354 with described a plurality of spindles ... use converter 321 across-the-line startings simultaneously respectively, can start simultaneously.In addition, in during the motor 353,354 that starts certain spindle that broken yarns take place with converter 321, spindle at other takes place under the situation of broken string, needn't wait for that the restarting of motor 353,354 of the spindle of broken string finishes earlier, just can start the motor 353,354 of each spindle one by one continuously with the motor 353,354 of the spindle of broken yarn after the converter across-the-line starting.
Like this, when problems such as a plurality of spindle generation broken yarns, can shorten the time of restarting of finishing each spindle, improve operating efficiency.
But, when this restarting, under the situation of delta connection 361,361, owing to need the electric current more than three times of common electric current, so, utilize the switching restrictions 380c of control device 380, restriction can in the same period switch to the upper limit of the spindle number of restarting on the delta connection 361,361.
The motor 353 that shows this spindle in the conduct of configuration on every side of being located at the motor switch 355 on each spindle respectively, the display lamp 385 of the display part of 354 operating condition, here, making the maximum number of the spindle that available this converter 321 can in the same period restart is N (N=2,3,4,), just in case, during the spindle of interior at one time this maximum number of across-the-line starting N, utilize the switching restrictions 380c of aforementioned control device 380 to carry out following control, promptly, connect at the motor switch 355 that makes other spindle, motor 353 with described spindle, the wiring diverter switch 359 of 354 correspondences, 359 remain on switched terminal 359b side respectively, described motor 353,354 via delta connection 361,361 are connected on the converter 321, and make the display lamp flicker of this spindle.
By the flicker of this display lamp 385, limit this spindle to the state that converter 321 connects from visually indicating to be in, cause operator's attention easily, by the motor switch 355 that once disconnected this spindle, the flicker of the display lamp 385 of this spindle is extinguished.Then, soon, connect the motor switch 355 of this spindle once more, if display lamp 385 flickers of this spindle at this moment then still are in the state that is connected on this spindle 321 that limits, on the other hand, if the display lamp of this spindle 385 is lighted, this restriction state is disengaged, and switches to switched terminal 359a side respectively corresponding to the wiring diverter switch 359,359 of the motor 353,354 of this spindle, be connected on the delta connection 361,361, the motor of this spindle is started once more.
Like this, by controlling, make in the same period in, the motor of can not the above needs of (N+1) individual spindle restarting 353,354 is connected on the converter 321, thereby can force down place capacity, with the saving energy.
As mentioned above, in the present embodiment, needn't to each spindle converter be set, simplified control system.In addition, utilize the motor 353 of induction synchro motor as aforementioned each spindle, 354 ... (1) belt between each spindle 351,352 ... rotary speed do not have deviation, (2) two belts 351 in spindle, rotary speed between 352 does not have deviation, (3) and, As time goes on, there is not velocity deviation, (4) and then, can only make a spindle, or the nipper formula twisting machine 5 of several spindles, 5 ... when stopping, do not make other spindle stop to keep its intact running, only start the nipper formula twisting machine 5 of the spindle that is stopped once more, 5 ...
In addition, in order directly to drive the nipper formula twisting machine 5,5 of each spindle with motor 353,354 ..., need not timing cingulum etc., thereby can reduce the high efficiency system configuration that noise does not become not the energy loss that causes because of belt drives.
And then, use and be equipped with the induction synchro motor 353 (354) of delta connection 361 and star-star connection 362, and be equipped with wiring diverter switch 359, thereby can constitute whole drive unit simply.
Drive unit according to fibre machinery of the present invention is not limited to false twist processing machine 1, can be arranged on twisting machine, ring throstles such as double-twist twisting machine, fly frames etc. are provided with a plurality of spindles or processing unit, carry out in each the starting, the various fibre machineries that stop of each spindle or processing unit.

Claims (18)

1, a kind of drive unit of fibre machinery, have a plurality of spindles, each spindle started in the fibre machinery that stops, it is characterized by, constitute the drive source of each spindle, the induction synchro motor of each spindle is connected at least one inverter power supply with induction synchro motor.
2, a kind of drive unit of fibre machinery, have a plurality of spindles, each spindle started in the fibre machinery that stops, it is characterized by, constitute the drive source of each spindle with induction synchro motor, by being located at the switching mechanism on each spindle, with the induction synchro motor of each spindle be connected in parallel respectively employ and two inverter power supplies of the usefulness that turns round on.
3, a kind of drive unit of fibre machinery, have a plurality of spindles, each spindle started in the fibre machinery that stops, it is characterized by, constitute the drive source of each spindle with induction synchro motor, by being located at the switching mechanism on each spindle, with the induction synchro motor of each spindle be connected in parallel respectively employ and turn round with and between the handing-over between them with three inverter power supplies on.
4, a kind of drive unit of fibre machinery, have a plurality of spindles, each spindle is started in the fibre machinery that stops, it is characterized by, be equipped with running to reach the auxiliary inverter power supply of using with inverter power supply, constitute the drive source of each spindle with induction synchro motor, be connected to aforementioned two inverter power supplies on the induction synchro motor of each spindle respectively in parallel, between the induction synchro motor of aforementioned two inverter power supplies and aforementioned each spindle, be provided for selecting any one in aforementioned two inverter power supplies respectively, be connected to the switching mechanism of using on the induction synchro motor of aforementioned each spindle, assigned frequency when the output frequency of aforementioned auxiliary converter power supply is set at aforementioned running with the common running of inverter power supply, and, in order to utilize aforementioned auxiliary induction synchro motor, set the output voltage values of aforementioned auxiliary converter power supply to such an extent that be higher than the output voltage values of aforementioned running with inverter power supply with inverter power supply across-the-line starting aforementioned at least one spindle.
5, the drive unit of fibre machinery as claimed in claim 4 is characterized by, and makes aforementioned running synchronized with each other with inverter power supply and aforementioned auxiliary output frequency with inverter power supply.
6, as the drive unit of claim 4 or the described fibre machinery of claim 5, it is characterized by, the control device that is connected with above-mentioned a plurality of switching mechanisms by control line is equipped with, this control device is equipped with the connection prohibition unit, described connection prohibition unit surpass with aforementioned auxiliary with inverter power supply can the while across-the-line starting spindle number, a plurality of switching mechanism select aforementioned auxiliary when using inverter power supply, for having selected aforementioned auxiliary spindle to forbid this spindle and aforementioned auxiliary being connected with inverter power supply with inverter power supply above behind the aforementioned spindle number.
7, the drive unit of fibre machinery as claimed in claim 6 is characterized by, and aforementioned control device is equipped with the display part that shows the spindle forbid carrying out aforementioned connection.
8, the drive unit of fibre machinery as claimed in claim 6, it is characterized by, aforementioned control device is equipped with the whole whole spindles of employing that rise of the induction synchro motor that makes aforementioned a plurality of spindles to start control parts and start control part once more, described start once more control part in aforementioned a plurality of spindles at least the induction synchro motor of the spindle of one of them stop, under the state of the induction synchro motor of remaining spindle running, the induction synchro motor of the aforementioned spindle that stops to be started once more.
9, the drive unit of fibre machinery as claimed in claim 7, it is characterized by, aforementioned control device is equipped with the whole whole spindles of employing that rise of the induction synchro motor that makes aforementioned a plurality of spindles to start control parts and start control part once more, described start once more control part in aforementioned a plurality of spindles at least the induction synchro motor of the spindle of one of them stop, under the state of the induction synchro motor of remaining spindle running, the induction synchro motor of the aforementioned spindle that stops to be started once more.
10, the drive unit of fibre machinery as claimed in claim 8, it is characterized by, aforementioned start once more control part utilize aforementioned auxiliary with inverter power supply the induction synchro motor of the aforementioned spindle that stops to be risen to aforementioned assigned frequency after, switch the switching mechanism of the aforementioned spindle that stops, aforementioned running is connected on the aforementioned induction synchro motor that stops spindle with inverter power supply.
11, a kind of drive unit of fibre machinery, have a plurality of spindles, each spindle started in the fibre machinery that stops, it is characterized by, aforementioned a plurality of spindles are divided into a plurality of groups, described each group is provided with inverter power supply, simultaneously, constitute the driving power of each spindle, the induction synchro motor of each spindle is connected on the inverter power supply of the group under it with induction synchro motor.
12, the drive unit of fibre machinery as claimed in claim 11, it is characterized by, it is provided with and is equipped with the control device of restarting control part, described restart control part receive a certain spindle induction synchro motor restart signal, but the output voltage that only makes the inverter power supply of the group under this spindle rises to the voltage of across-the-line starting from quiet rum voltage, the induction synchro motor of this spindle is connected on this inverter power supply, through after the stipulated time, the output voltage of this inverter power supply is dropped to the mode of quiet rum voltage, control being connected of induction synchro motor of the output voltage of aforementioned inverter power supply and aforementioned inverter power supply and aforementioned spindle.
13, the drive unit of fibre machinery as claimed in claim 12, it is characterized by, on aforementioned control device, control part is forbidden in setting, this forbids control part when but the output voltage with a certain group inverter power supply rises to the voltage of across-the-line starting, the rise of output voltage of forbidding the inverter power supply of other group.
14, a kind of drive unit of fibre machinery, have a plurality of spindles, each spindle started in the fibre machinery that stops, it is characterized by, constitute the drive source of each spindle with induction synchro motor, each induction synchro motor is equipped with triangle and star-star connection, is connected on the shared inverter power supply of a plurality of spindles by the induction synchro motor of each corresponding wiring switching mechanism with each spindle.
15, the drive unit of fibre machinery as claimed in claim 14, it is characterized by, it is provided with and has drive control part again, described drive control part again receive the induction synchro motor of restarting a certain spindle use restart signal the time, to switch to the delta connection side corresponding to the wiring switching mechanism of the induction synchro motor of this spindle, the induction synchro motor of this spindle is connected on the aforementioned inverter power supply, through behind the official hour, this wiring switching mechanism is switched to the star-star connection side, control being connected of induction synchro motor of aforementioned each corresponding wiring switching mechanism and aforementioned inverter power supply and aforementioned spindle by this way.
16, the drive unit of fibre machinery as claimed in claim 15, it is characterized by, aforementioned control device is equipped with whole spindle starting control parts, described whole spindle drive control part is when the whole spindle initiating signal that the whole induction synchro motors that receive a plurality of spindles of starting are used, aforementioned each corresponding wiring switching mechanism is switched to the star-star connection side, so that the induction synchro motor of aforementioned a plurality of spindles is controlled aforementioned each corresponding wiring switching mechanism with the mode that aforementioned inverter power supply couples together by aforementioned star-star connection.
17, as the drive unit of claim 15 or 16 described fibre machineries, it is characterized by, aforementioned control device is equipped with the switching restrictions, and described switching restrictions limits switching, does not make the above aforementioned wiring switching mechanism of defined amount switch to the delta connection side.
18, the drive unit of fibre machinery as claimed in claim 17 is characterized by, and it is equipped with display part, is used to show that the switching restrictions of aforementioned control device limits the spindle of aforementioned switching.
CN 02151329 2001-11-15 2002-11-15 Fibre machinery driving device Expired - Lifetime CN1298101C (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP349682/2001 2001-11-15
JP2001349682A JP2003153589A (en) 2001-11-15 2001-11-15 Driver of textile machine
JP245294/2002 2002-08-26
JP2002245295A JP2004084107A (en) 2002-08-26 2002-08-26 Driving device of textile machine
JP2002245296A JP4081714B2 (en) 2002-08-26 2002-08-26 Textile machine drive
JP245296/2002 2002-08-26
JP2002245294A JP4182538B2 (en) 2002-08-26 2002-08-26 Textile machine drive
JP245295/2002 2002-08-26

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CN1420621A CN1420621A (en) 2003-05-28
CN1298101C true CN1298101C (en) 2007-01-31

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589133A1 (en) * 2004-04-23 2005-10-26 Maschinenfabrik Rieter Ag Method of synchronous switching of a motor between two frequency converters
DE102006024554B4 (en) * 2006-05-23 2008-07-24 Oerlikon Textile Gmbh & Co. Kg Spinning machine with a plurality of synchronously operated electric motors
EP2671982A1 (en) * 2012-06-08 2013-12-11 Murata Machinery, Ltd. Spinning machine
CN104779643B (en) * 2015-04-24 2017-01-04 深圳先进技术研究院 Multiple stage synchronous motor is incorporated into the power networks control method and device
CN106301091B (en) * 2016-09-28 2021-06-11 阳光电源股份有限公司 Battery panel tracking system, motor power supply method thereof and tracking control box
JP2022074285A (en) * 2020-11-04 2022-05-18 Ｔｍｔマシナリー株式会社 False twisting machine

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