CN1447517A - Fast stop for rotary body - Google Patents
Fast stop for rotary body Download PDFInfo
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- CN1447517A CN1447517A CN 03108262 CN03108262A CN1447517A CN 1447517 A CN1447517 A CN 1447517A CN 03108262 CN03108262 CN 03108262 CN 03108262 A CN03108262 A CN 03108262A CN 1447517 A CN1447517 A CN 1447517A
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Abstract
To apply a brake to a body of rotation by the regenerative brake even by stopping power supply to a control device from a power source when the power source is cut off at emergency stop time, service interruption time, etc., taken for a long period of time. This quick stopper 30 for a body of rotation is constituted by providing spindles 9A, 9B, spindle motors 6A, 6B driving the spindles 9A, 9B, a control device 5 controlling driving of the motors through an inverter 4, and a service interruption detector 25 detecting cutoff of power supply from a commercial AC power source 20 and the control device 5, when a power cutoff is detected, commands the spindle motor to decelerate to make the control device 5 supply regenerative power by the spindle motor, up to the time to continuously command the spindle motor to decelerate till a system turns down by insufficiency of the regenerative power.
Description
Technical field
The present invention relates to a kind of quick arresting stop that is used for rotor, more particularly, relate to the device that uses regeneration brake that rotor is stopped operating.
Background technology
The high speed winder that is used for weaving loom is an embodiment of device who is provided with the rotor/rotor of heavy and high speed rotating.Usually use the industry that is arranged on this device outside to exchange (AC) power supply and provide electric energy to this device.The control device that is located in this winder is changed energy from industrial AC power supplies by phase inverter.This control device makes the spindle high speed rotating with winding yarn.The spindle that is carrying the packing that twines full yarn on it is very heavy.Under normal halted state, the high speed winder has utilized the electrical regenerative braking device to make the motor absorbing load bearing the huge rotational energy of the spindle of the packing that twines full yarn on it.Therefore this rotor stops operating.
Stop energy when supply when instantaneous, for example, the electric energy that is provided by industrial AC power supplies can be as reducing about 50% as shown in Fig. 5 A.At this moment, control device passes through as slowing down at phase inverter as shown in Fig. 5 B or convertor controls spindle motor.But if be equal to or less than the scheduled time (for example, being approximately 1 second) period that the energy supply keeps stopping, then this control device control spindle motor quickens once more, to get back to the rotating speed that is used to reel.The spindle motor of this deceleration is used for producing the generator of regenerated energy.This energy is used for keeping the operation of other devices of control device.This regenerated energy can be used for irrespectively keeping with the increasing degree of industrial AC power supplies the operation of control device.The dynamic buffering that provides when instantaneous power interruptions is provided in this control.
In addition, stop in emergency, under the situation such as long-time power interruptions, industrial AC power supplies and winder disconnection.Therefore, the energy supply to control device stops.Demonstrate this state among Fig. 6 A.At this moment, control the deceleration of rotor (carrying the spindle of these packings) as described below.
(1) in response to the energy supply stop or detecting energy interrupt, this control device automatically turn-offs.Rotor can not stop, but owing to the inertia before stopping freely to rotate.In Fig. 6 B, demonstrate the variation in the rotating speed of control device.
(2) in response to the energy supply stop or detecting energy interrupt, this control device is actuated mechanical brake, to stop this rotor.Perhaps, this control device automatically turn-offed before actuating mechanical brake.Demonstrate the rotation speed change of this control device among Fig. 6 C.
In method (1), under situations such as emergency shutdown, long time power interruption, rotor can initiatively or effectively not stop.During freely rotating, this rotor slows down under the effect of the frictional resistance of its shaft portion or air drag.Therefore, before stopping, rotor needs for a long time.
In addition, in method (2), use mechanical brake that high speed rotating and heavy rotor are stopped.Therefore, this mechanical brake needs very large stopping power.The maximum (top) speed of the winding axle of high speed winder is the tens thousand of commentaries on classics of per minute (rpm).The diameter of rotating disk and the intensity of brake body must be designed to satisfy this stopping power.But because the layout of this winder, the rotating disk that meets above-mentioned requirements can not design in conjunction with the intensity of brake.In addition, this mechanical brake does not need to be actuated for stopping normally.Therefore, it does not conform to its cost.
Even make from (outside) power supply under the situation of the power supply supply discontinuity of control device when power supply disconnects as in situations such as emergency shutdown, long time power interruptions, the present invention also makes it possible to use regeneration brake that rotor is stopped
Summary of the invention
The purpose that the present invention will realize as mentioned above.
Realize that to being used to the device of this purpose describes below.That is to say that provide a kind of quick arresting stop that is used for rotor according to one aspect of the present invention of claim 1, this device comprises: rotor; Drive the motor of this rotor; Control the control device of this motor; And energy interruption sniffer, be used for surveying interruption from the supply of electrical energy of power supply, wherein when energy interrupted detection to power interruptions, the control device indication motor slowed down, so that can offer control device from the regenerated energy of motor.
One aspect of the present invention according to claim 2 provides device as claimed in claim 1; wherein in order to control the deceleration of motor; this control device be designed to energy interrupt sniffer detected power interruptions after and before instantaneous energy interruption safeguard protection effluxion, carry out control in the safeguard protection time; and the control after later carrying out the safeguard protection time in the safeguard protection time, and will be in the control procedure after the safeguard protection time motor amount of deceleration of time per unit be set at motor amount of deceleration greater than time per unit in the control procedure in the safeguard protection time.
One aspect of the present invention according to claim 3 provides device as claimed in claim 2, and wherein a mechanical brake is set up, to operate in the predetermined period that is used for after the safeguard protection time.
One aspect of the present invention according to claim 4 provides a kind of quick arresting stop that is used for rotor, and this device comprises: rotor; Drive the motor of this rotor; Control the control device of this motor; And connection/cut-off switch, this switch can interrupt the supply of electrical energy from power supply, and wherein when detecting the off-state of connection/cut-off switch, the control device indication motor slows down, so that can offer control device from the regenerated energy of motor.
One aspect of the present invention according to claim 5 provides device as claimed in claim 4, and wherein a mechanical brake is set up, to operate in the predetermined period that is used for after the off-state that detects connection/cut-off switch.
One aspect of the present invention according to claim 6 provides as each described device among the claim 1-5, and wherein control device Sustainable Control motor slows down up to this control device owing to regenerated energy is turned off inadequately.
One aspect of the present invention according to claim 7 provides as claim 3 or 5 described devices, wherein said control device constitutes Sustainable Control control motor and slows down up to this control device owing to regenerated energy is turned off inadequately, and mechanical brake period of operating is set to appearance after control device turn-offs.
One aspect of the present invention according to Claim 8 provides as each described device among the claim 1-7, and wherein said rotor is to be used for the spindle that winding yarn is packed with formation in doff equipment.
Description of drawings
Fig. 1 is the block diagram of the structure of quick arresting stop 30;
Fig. 2 is the curve chart of the temporary transient variation of energy of rotor (being formed with the spindle of packing 13 on it) during the deceleration control that quick arresting stop 30 by this carries out and rotating speed;
Fig. 3 is the block diagram of the structure of quick arresting stop 40;
Fig. 4 is the curve chart of the temporary transient variation of energy of rotor (being formed with the spindle of packing 13 on it) during the deceleration control that quick arresting stop 40 by this carries out and rotating speed;
Fig. 5 is the energy of observed rotor (spindle) when instantaneous energy interrupts and the curve chart of the transient change in the rotating speed;
Fig. 6 is the energy of observed rotor (spindle) in traditional winder when emergency shutdown or long-time power interruptions and the curve chart of the transient change in the rotating speed.
Embodiment
Below will be to comprising all that according to corresponding embodiment and each the quick arresting stop 30,40 of first and second aspects of the present invention describes.A first aspect of the present invention proposes a kind ofly can to make the quick stopping device of rotor when long-time power interruptions.In addition, a second aspect of the present invention provides a kind of quick stopping device of rotor that makes when emergency shutdown.These two aspects of the present invention have different preconditions, but something in common is to make rotor promptly to stop.To carry out briefly bright to the difference between these aspects of the present invention below.A first aspect of the present invention proposes a kind of like this equipment, and wherein after power interruptions began, control device 5 (back description) determined whether this power interruptions is temporary transient, and control is provided then, so that this rotor is promptly stopped.A second aspect of the present invention provides a kind of like this device, if wherein any abnormal conditions or analogue make that connection/cut-off switch is in off-state, thereby this switch interrupts from the supply of electrical energy of power supply, then this control device 5 provides control, so that this rotor is stopped immediately.First and second aspects of the present invention are applicable to fast unit 30 and 40.
At first, with reference to Fig. 1 the quick arresting stop 30 according to first embodiment is described.Fast arresting stop 30 has been applied in the layout between industrial AC power supplies 20 and wind 2.Fig. 1 is the block diagram of the structure of quick arresting stop 30.
Wind 2 (high speed winder/wrapping head) winding yarn in spinning unit.Spinning unit is made of spinning apparatus, cylinder (codet roller) and the wind 2 along yarn throughput direction arranged in series.Spinning apparatus is with the polymer spun yarn of fusion.In addition, spinning is extracted and carried to cylinder out.Wind 2 is wrapped in yarn on the spindle and simultaneously it is carried out horizontal sending.
With reference to Fig. 1 the structure of this wind 2 is described below.Wind 2 is equipped with a pair of spindle 9A, 9B, contact cylinder 10 and traverse cam 11.Turret plate 50 is arranged in the main body of wind 2, so that rotational motion freely, and be arranged on each spindle 9A, the bases of 9B.Turret plate 50 moves rotationally, with change spindle 9A, and the upright position of each among the 9B, thus can cover each spindle 9A, the full packing on the 9B.The yarn 12 that transfers out from spinning apparatus and cylinder is wrapped in a spindle 9A who is in winding position, on the 9B.Therefore, these packings 13 have been formed.Strictly speaking, packing 13 is to form in that yarn 12 is wrapped on the bobbin that is installed on the spindle.Contact cylinder 10 in the above the position in abutting connection with being positioned at packing 13 on the spindle.Then, the rotating speed according to contact cylinder 10 detects the speed that yarn 12 twines.In addition, drive traverse cam 24, to form these packings 13, so that have fixing winding width.
Spindle motor 6A, 6B respectively with spindle 9A, 9B coaxially is provided with, as the device that is used to survey their rotating speeds.Encoder 14A, 14B, 15,16 are connected with control device 5 by corresponding signal lines, so that with motor 6A, and 6B, the information on 7,8 the rotating speed sends control device to.
In addition, tension pick-up 17 is provided with the tension force that is used for surveying yarn 12.Tension pick-up 17 is made of one group of transducer, and each transducer is surveyed the tension force of corresponding yarn 12.Tension pick-up 17 is connected with control device 5 by the corresponding signal line, so that send the information on the tension force of yarn 12 to control device 5.
Phase inverter 4 is the integrated phase inverters that can control the energy that flows to a plurality of motors (multi-load) simultaneously.Phase inverter 4 by with corresponding power transmission line and motor 6A, 6B, 7,8 connect, so that provide energy to them.Phase inverter 4 and control device 5 link together by holding wire, so that transmit signal each other.According to from encoder 14A, 14B, 15,16 and the detectable signal of tension pick-up 17, control device 5 control phase inverters 4 are to motor 6A, 6B, and 7,8 provide suitable energy.Word " suitable " is used for here representing that for example control device 5 is being controlled motor 6A, 6B, and 7,8 rotating speed is so that can twine yarn 12 with fixing speed.But, should " suitable " control be not limited to this.This control can provide the constant tension that is used for making yarn 12.
Spindle 9A, 9B is particularly heavy after packing 13 has been formed on them.Formed wrapped spindle 9A on the spindle 9A, 9B or its, 9B is respectively by spindle motor 6A, the rotor that 6B drives.In addition, contact cylinder 10 is the rotors that driven by contact Rolling motor 7.Traverse cam 11 is the rotors that driven by the motor 8 that traverses.
In this wind 2, formed wrapped spindle 9A on the spindle 9A, 9B or its, 9B very heavy and driven while with high speed rotating.Therefore, only use mechanical brake to make spindle 9A, it is unpractical that 9B stops.Therefore, be provided with in the structure between industrial AC power supplies 20 (do not comprise industrial AC power supplies 20 self) and wind 2 and use the quick arresting stop 30 of regeneration brake as the main brake device.
Wind 2 uses the industrial AC power supplies 20 that is arranged in this device outside to self supplying energy.
This industry AC power supplies 20 is by providing energy by the power line shown in the solid line 21.This energy is provided for phase inverter 4 and the control device 5 that is located in the wind 2.Utilize power line 21 that direct current (DC) is offered control device 5 by phase inverter or the transformer that in these figure, does not illustrate.In addition, the same as previously described, phase inverter 4 offers motor 6A, 6B, 7,8 with energy.
On power line 21, be provided with connection/cut-off switch 22.Can disconnect the electrical connection between industrial AC power supplies 20 and the wind 2.Connection/cut-off switch 22 is a kind of devices that occur forcing under the abnormal conditions power supply and wind 2 from industrial AC power supplies 20 to disconnect in wind 2.This connection/cut-off switch 22 is in connection status generally speaking, therefore the energy from industrial AC power supplies 20 can be offered wind 2.
Wind 2 is provided with emergency stop switch 23, the device that (has been formed with the spindle of packing 13 on the same its as described below) as being used for output order so that rotor and stops rapidly.Emergency stop switch 23 by corresponding signal lines and control device 5 be connected/cut-off switch 22 connects.When operating personnel opened emergency stop switch 23, connection/cut-off switch 22 interrupted from the energy supply of industrial AC power supplies 20 to wind 2.Fig. 1 only demonstrates an emergency stop switch 23.But, a plurality of emergency stop switch 23 can be arranged in the wind 2.In addition, when operating personnel opened emergency stop switch 2, the instruction that will be used for rotor is stopped rapidly by holding wire sent control device 5 to.
In addition, if abnormal conditions occur in wind 2, then connection/cut-off switch 22 also interrupts from the energy supply of industrial AC power supplies 20 to wind 2.For example,, then actuate connection/cut-off switch 22, to interrupt this power supply if the system of this control device 5 stops and stopping to send signal to connection/cut-off switch 22 from control device 5.
Power interruptions detector 25 is located on the power line 21 that is positioned at connection/cut-off switch 22 downstreams, is used for surveying power interruptions.When industrial AC power supplies 20 stopped energy supply, power interruptions detector 25 was surveyed power interruptions.
Power interruptions detector 25 and control device 5 link together by holding wire, so that transmit signal mutually.Power interruptions detector 25 can send detectable signal to control device 5.
In addition, power interruptions detector 25 is provided with timer 2 5a.In case through preset time (the safeguard protection time that is used for instantaneous power interruptions), then timer 2 5a will be used to warn the signal (long time power interruption detectable signal) of safeguard protection time end to send control device 5 to after power interruptions detector 25 has detected power interruptions.
Specifically, the rotor that must be stopped by quick arresting stop 30 is to carry to pack 13 spindle 9A or spindle 9B, the heavier and high speed rotating of this spindle.Spindle 9A, the 9B of carrier package 13 compares with other rotor, traverse cam 11 etc. has sizable rotational energy.Therefore, they are difficult to stop fast (this relates to purpose of the present invention) so far.
At first, will the parts of the quick arresting stop 30 relevant with a first aspect of the present invention be described.The parts of the quick arresting stop 30 relevant with a first aspect of the present invention comprise spindle 9A, 9B and motor 6A, the 6B of carrier package 13, the described rotor of this motor-driven.This quick arresting stop 30 also comprises control device 5, and this control device 5 is by the driving of phase inverter/converter 4 control motor 6A, 6B.This quick arresting stop 30 also comprises power interruptions detector 25, as the interruption that is used for surveying from the energy supply of industrial AC power supplies 20.
The target of deceleration control is among spindle motor 6A, the 6B in the wind 2, and this motor winding position place in the above is driven.Spindle motor 6A, 6B are coaxial with spindle 9A, 9B respectively.Their upright position changes by the rotation of turret plate 50.Therefore, will one of them motor 6A or the 6B that be positioned at another top be described below.The reference number that is used for these spindle motors will omit.Equally, will omit since with the reference number of the corresponding spindle of spindle motor.
With reference to figure 2A and 2B, will the deceleration control as the rotor in the quick arresting stop 30 of the embodiment of a first aspect of the present invention (long-time power interruptions) be described below.
Fig. 2 is the curve chart of the temporary transient variation of energy of rotor (being formed with the spindle of packing 13 on it) during the deceleration control that quick arresting stop 30 by this carries out and rotating speed.Specifically, Fig. 2 A is the curve chart from the transient change in the power supply of industrial AC power supplies 20.Fig. 2 B is the curve chart of the transient change of the rotor rotating speed during long-time power interruptions.
(long time power interruption) according to a first aspect of the invention, the deceleration control of this rotor is divided into two stages.That is to say that deceleration control is included in the control in safeguard protection time of carrying out before the safeguard protection effluxion that is used for instantaneous power interruptions and the control after safeguard protection time of carrying out after being used for the safeguard protection effluxion of instantaneous power interruptions.The timer 2 5a that is located in the power interruptions detector 25 measures the safeguard protection time that is used for instantaneous power interruptions as previously described.Then, in case after this safeguard protection time, the signal (long-time power interruptions detectable signal) that timer 2 5a will be used for warning this safeguard protection time to finish sends control device 5 to.
When this power interruptions detector 25 detected energy and interrupts, the control in the safeguard protection time at first started, and this carries out in safeguard protection time of instantaneous power interruptions being used for.According to the detection of being interrupted by 25 pairs of energy of power interruptions detector, control device 5 control spindle motors slow down.The variation of the energy that provides by connection/cut-off switch 22 by industrial AC power supplies 20 is provided in Fig. 2 A.Then, when the spindle motor of inertia rotation was instructed to slow down, it produced regenerated energy.In addition, the rotational energy of forfeiture equals regenerated energy.At this moment, as shown in fig. 2B the same, the rotating speed of this spindle motor reduces.Simultaneously, device 5 makes the regenerated energy that is produced offer self by phase inverter 4, to obtain being used for making its operation to continue energy needed.
The safeguard protection time that is used for instantaneous power interruptions (for example; be approximately 1 second) process in; regenerated energy from described motor is used to control spindle motor, so as speed of wrap reduce minimize, make control device 5 and phase inverter 4 to operate simultaneously.This has prevented winding operation owing to instantaneous power interruptions is suspended, and therefore makes this wind 2 can continue operation.On the contrary, after having passed through in the safeguard protection time that is used for instantaneous power interruptions, determine that yarn can not enough correctly twine to keep its quality.Therefore, after having passed through in the safeguard protection time, carry out deceleration control, stop so that carrying the spindle of formed packing 13.Because the spindle that has required to be formed with packing 13 on it when energy has been resumed after power interruptions has stopped and can having started immediately, so this quick shut-down operation partly needs.
That is to say; be used in the safeguard protection time of instantaneous power interruptions; control device 5 is attempted to obtain operation self 5 and phase inverter 4 needed minimum regenerated energies from the rotor motor, makes the rotating speed of the spindle that has been formed with packing 13 on it keep high as far as possible simultaneously.On the other hand, in the safeguard protection time that is used for instantaneous power interruptions over and done with after, control device 5 carries out deceleration control, so that the spindle that has been formed with packing 13 on it is stopped as quickly as possible.
Go in case be used for the safeguard protection time of instantaneous power interruptions, then carry out controlling after the safeguard protection time, stop rapidly so that be formed with the spindle (rotor) of packing 13 on it.When timer 2 5a transmission was used to warn the signal of safeguard protection time end, control device 5 continued indication rotor motors and slows down.The deceleration control of carrying out in the past in the safeguard protection time is used for making having formed on it and packs 13 spindle and stop.The amount of deceleration of unit interval when therefore, this spindle motor is controlled is greater than the unit interval amount of deceleration in safety time.As shown in fig. 2B the same, rate of deceleration before safety time with different afterwards.
Said structure make this rotor (having formed wrapped spindle on it) even as situation such as long-time power interruptions under be used for safeguard protection time of temporary transient power interruptions and also can promptly stop after over and done with.Therefore this structure is preferred; Slow deceleration control (control between safeguard protection) and fast deceleration control (control after the safeguard protection time) can be carried out at a kind of like this device; this device need make the velocity of rotation of rotor keep constant device as far as possible when instantaneous power interruptions, needs rotor to stop rapidly when long-time power interruptions simultaneously.
In addition, control device 5 continues the indication spindle motor and slows down, till closing when regenerated energy is not enough.This is corresponding with following situation, and wherein the rotating speed of spindle is lower than the minimum speed of spindle motor, and this can provide operating control device 5 needed least energies.When control device 5 was turned off, spindle motor can not be operated and as generator (regenerated energy source).Therefore, as shown in fig. 2B, after control device 5 has been turned off, spindle freely rotates, when freely rotating, slow down under the effect of the frictional resistance of this spindle between self and its shaft portion, air drag etc., and after slowly slowing down, stopping, being equivalent to use regeneration brake, mechanical brake etc. to carry out the active deceleration.But, owing to the rotating speed of rotor reduces, so do not need the too many time that the spindle that freely rotates is stopped.
As mentioned above, controlling the spindle motor deceleration continuously is turned off up to this control device 5.Therefore, can make full use of regeneration brake controls this rotor and promptly stops.
Now, will the parts of the quick arresting stop 30 relevant with a second aspect of the present invention be described.A second aspect of the present invention is provided for device that rotor is stopped rapidly when emergency shutdown.The parts of the quick arresting stop 30 of this relevant with second aspect present invention comprise and are carrying spindle 9A, 9B that packs 13 and motor 6A, the 6B that drives these rotors.This quick arresting stop 30 also comprises control device 5, and this control device 5 is by phase inverter 4 control motor 6A, the driving of 6B.This quick arresting stop 30 also comprises the connection/cut-off switch 22 that can interrupt from the energy supply of industrial AC power supplies 20.
With reference to Fig. 2 C, will the deceleration control as the rotor in the quick arresting stop 30 of the embodiment (emergency shutdown) of a second aspect of the present invention be described below.Fig. 2 C demonstrates the transient change of the rotating speed of observed rotor when emergency shutdown.
In a second aspect of the present invention (emergency shutdown), the deceleration control of rotor comprises and a first aspect of the present invention opposite stage of (long-time power interruptions).A second aspect of the present invention plans when abnormal conditions rotor to be stopped rapidly., the energy supply starts deceleration control as early as possible in case being interrupted.Control device 5 be connected/cut-off switch 22 links together by holding wire.Control device 5 can detect in the connection status of connection/cut-off switch 22 and the difference between the off-state.
When detecting the off-state of connection/cut-off switch, control device 5 indication spindle motors slow down.Variation in the energy that provides by connection/cut-off switch 22 by industrial AC power supplies 20 is provided in Fig. 2 A.Then, when the spindle motor that is just rotating at inertia simultaneously slowed down, it produced regenerated energy.In addition, the rotational energy of forfeiture equals regenerated energy.At this moment, as shown in Fig. 2 C, the rotating speed of spindle motor reduces.Simultaneously, control device 5 makes the regenerated energy that is produced offer self by phase inverter 4, operates needed kinetic energy to obtain continuing it.
When emergency shutdown, the spindle that has been formed with packing 13 on it preferably stops as quickly as possible.If abnormal conditions occur in wind 2, then emergency stop switch 23 (emergency shutdown instruction inputting device) operation is carried out emergency shutdown with indication.This rotor must stop rapidly, so that prevent that as quickly as possible wind 2 from continuing to drive under abnormality.
When emergency shutdown, carry out deceleration control, stop making the spindle that has been formed with packing 13 on it as quickly as possible.Be used for deceleration ramps at the emergency shutdown shown in Fig. 2 C greater than the deceleration ramps in the safeguard protection time that is being used for instantaneous power interruptions, as be used in the safeguard protection time of the instantaneous power interruptions as shown in Fig. 2 B over and done with after the situation of viewed deceleration ramps.
Adopt said structure, if in the equipment that has adopted quick arresting stop 30 (wind 20), occurred, this rotor is promptly stopped, to prevent that this rotor from continuing to rotate under abnormality as abnormal conditions such as emergency shutdowns.
Now, with reference to Fig. 3 the quick arresting stop 40 according to second embodiment is described.Fig. 3 is the block diagram of the structure of quick arresting stop 40.This quick arresting stop 40 also is provided with mechanical brake 18 (described below) except regeneration brake, as the device that is used to make rotor (spindle) braking.This quick arresting stop 40 is that with difference according to the quick arresting stop of first embodiment it is provided with mechanical brake 18.In the following description, will represent by identical reference number with those identical parts of the quick arresting stop 30 of first embodiment.Their explanation will be omitted.
In the wind 42 of having used quick arresting stop 40, compare with quick arresting stop 30, the same as shown in FIG. 3, mechanical brake 18 is located on the side of each spindle 9A, 9B.This mechanical brake 18 comprises disk 18a is pressed in brake 18a and brake apparatus 18b on the spindle side.In addition, rotating disk 8a is located at the place, an end of the axle of each among spindle 9A, the 9B, thereby rotating disk 9a is pressed against on the disk 18a.Brake apparatus 18b is provided with and uses compressing parts etc. that disk 18a is pushed to the pushing mechanism of brake side and is used to stop the prevention mechanism that promotes operation.For example, when equally stopping from control device 45 transmission signals as hereinafter described, this prevention mechanism makes it stop operation to stop, so that pushing mechanism can be driven.This pushing mechanism presses against disk 18a on the rotating disk 9a of spindle, so that the spindle braking.
The control device 45 of this wind 42 except the function of control device 5 with make holding wire and power line can with layout that control device 5 is connected, the structural configuration that makes that mechanical brake 18,18 can be controlled also is provided.In mechanical brake 18,18 and the control device 45 each links together by holding wire, so that transmit signal mutually.This control device 45 can be handled mechanical brake 18.
The same with quick arresting stop 30, this quick arresting stop 40 is and a first aspect of the present invention (long-time power interruptions) and the corresponding embodiment of second aspect (emergency shutdown).At first, will the parts of the quick arresting stop 40 relevant with first aspect present invention (long-time power interruptions) be described.The parts of the quick arresting stop 40 relevant with first aspect present invention comprise and are carrying spindle 9A, 9B that packs 13 and spindle motor 6A, the 6B that drives these rotors.This quick arresting stop 40 also comprises the control device 45 by the driving of phase inverter 4 control motor 6A, 6B.This quick arresting stop 40 also comprises power interruptions detector 25, and it surveys the device of the interruption of supplying from the energy of industrial AC power supplies 20 with effect.
With reference to Fig. 4 A and 4B, will the deceleration control of the rotor in the quick arresting stop 40 that constitutes as mentioned above be described below.Fig. 4 is the curve chart of the temporary transient variation of energy of viewed rotor (being formed with the spindle of packing 13 on it) when the deceleration control of being undertaken by this quick arresting stop 40 and rotating speed.Specifically, Fig. 4 A is the curve chart from the transient change in the power supply of industrial AC power supplies 20.Fig. 4 B is the curve chart of the transient change of the rotor rotating speed during long-time power interruptions.
To the deceleration control as the quick arresting stop 40 of the embodiment of first aspect present invention (long-time power interruptions) be described below.This deceleration control of rotor in quick arresting stop 40 is divided into three phases.The same as mentioned above, in the quick arresting stop 30 as first embodiment of first aspect present invention (long-time power interruptions), the deceleration control of this rotor is divided into two stages.Deceleration control in second stage has been utilized the regeneration brake of spindle motor.In this quick arresting stop 40, the deceleration control of rotor also comprises the phase III, promptly based on the deceleration control of mechanical brake 18.
When power interruptions detector 25 detects energy and interrupts, in the phase I, at first start the control in the safeguard protection time, this stage carries out in the safeguard protection time of instantaneous power interruptions being used for.According to the detection of being interrupted by 25 pairs of energy of power interruptions detector, control device 45 indication spindle motors slow down.Variation in the energy that is provided by industrial AC power supplies 20 utilization connection/cut-off switch 22 is provided in Fig. 4 A.Then, when notifying the spindle motor that is just rotating at inertia to slow down, it produces regenerated energy.In addition, the rotational energy of forfeiture equals regenerated energy.At this moment, as shown in Fig. 4 B, the rotating speed of spindle motor reduces.Simultaneously, this control device 45 makes the regenerated energy that is produced offer self by phase inverter 4, to obtain to continue its operation energy needed.
Go in case be used for the safeguard protection time of instantaneous power interruptions, then carry out controlling after the safeguard protection time, stop rapidly so that be formed with the spindle (rotor) of packing 13 on it.When timer 2 5a transmission was used to warn the signal of safeguard protection time end, control device 5 continued indication rotor motors and slows down.The deceleration control of carrying out in the past in the safeguard protection time is used for making having formed on it and packs 13 spindle and stop.The amount of deceleration of unit interval when therefore, this spindle motor is controlled is greater than the unit interval amount of deceleration in safety time.As shown in fig. 2B the same, deceleration ramps changes before safety time and afterwards.
In addition, control device 45 continues the indication spindle motor and slows down, and the regenerated energy that is become not enough gradually up to it turn-offs.This rotating speed with spindle wherein is corresponding less than the minimum speed of spindle motor, and this can provide maneuver control device 5 needed least energies.
When control device 5 was turned off, spindle motor can not be operated as generator (regenerated energy source).Therefore, in the stage of deceleration control, when control device 5 was turned off, mechanical brake 18,18 was actuated.
In the embodiment of this operation, transmit signal in case control device 45 is turned off to mechanical brake 18,18 and stop, then actuating mechanical brake 18,18, so that spindle 9A, 9B braking.Perhaps, this phase inverter 4 can be with the drive source that acts on the prevention mechanism that is located among the brake apparatus 18b.Then, if stop or the energy that being provided is reduced to specific or less numerical value, then stop mechanism can stop to actuate pushing mechanism and mechanical brake 18 from the energy supply of phase inverter 4.Like this, from the energy supply of phase inverter 4 be the energy of the renewable energy resources that provide from industrial AC power supplies 20 or by phase inverter 4.This is reduced to special value or is actuated during than fractional value at the energy that industrial AC power supplies 20 is interrupted or it provided with regard to meaning mechanical brake 18.
The rotating speed that Fig. 4 B demonstrates spindle after control device 45 is turned off is how to slow down by mechanical brake 18.Be difficult to make this mechanical brake 18 to produce and combine the Intensity Design of rotating disk and the suitable braking effect of regeneration brake of cost.
As mentioned above, in quick arresting stop 40, mechanical brake 18 is actuated, to have finished its operation at regeneration brake after, make the rotor deceleration as the embodiment of first aspect present invention.Therefore, this rotor (spindle) is braked under the effect of regeneration brake or mechanical brake 18.Therefore, compare with the situation of freely rotating, it can promptly stop.In addition, mechanical brake 18 makes rotor slow down after by the deceleration that regeneration brake carried out.This is used for being reduced in the load on the mechanical brake 18 and improves its durability.In addition, this mechanical brake 18 can miniaturization, increases to prevent cost.
In the superincumbent explanation, mechanical brake 18 is actuated after control device 45 has been turned off.But the present invention is not limited to this structure.For example, mechanical brake 18 can use with regeneration brake, during with the control after the control break time of falling the safeguard protection or the rotating speed of rotor be reduced to predetermined or than fractional value after brake this rotor.This makes that this rotor can be than only using the stop operating situation of body of regeneration brake to stop quickly therein.
Now, will the parts of the quick arresting stop 40 relevant with second aspect present invention be described.A second aspect of the present invention provides and be used to device that rotor is stopped rapidly when emergency shutdown.The parts of the quick arresting stop 40 of this relevant with second aspect present invention comprise and are carrying spindle 9A, 9B that packs 13 and motor 6A, the 6B that drives these rotors.This quick arresting stop 40 also comprises control device 5, and this control device is by phase inverter 4 control motor 6A, the driving of 6B.This quick arresting stop 40 also comprises the connection/cut-off switch 22 that can interrupt from the energy supply of industrial AC power supplies 20.
With reference to Fig. 4 C, will the deceleration control as the rotor in the quick arresting stop 40 of the embodiment (emergency shutdown) of second aspect present invention be described below.Fig. 4 C demonstrates the transient change of the rotating speed of observed rotor when emergency shutdown.
Deceleration control as 40 pairs of rotors of quick arresting stop of an embodiment of second aspect present invention is provided with two stages.The same as previously described, be provided with a regeneration brake that utilizes spindle motor carries out deceleration control to rotor stage as the quick arresting stop 30 of second aspect present invention (emergency shutdown).In this quick arresting stop 40, the deceleration control of rotor also comprises the deceleration control based on mechanical brake 18 as second stage.
In first stage, when detecting the off-state of connection/cut-off switch 22, control device 45 indication spindle motors slow down.Variation in the energy that provides by connection/cut-off switch 22 by industrial AC power supplies 20 is provided in Fig. 4 A.Then, when the spindle motor that just rotates at inertia slowed down, it produced regenerated energy.In addition, the rotational energy of forfeiture equals regenerated energy.At this moment, as shown in Fig. 4 C, the rotating speed of spindle motor reduces.Simultaneously, control device 45 makes the regenerated energy that is produced offer self by phase inverter 4, operates needed kinetic energy to obtain continuing it.
When emergency shutdown, carry out deceleration control, so that make the spindle that has been formed with packing 13 on it stop as quickly as possible.Be used for deceleration ramps at the emergency shutdown shown in Fig. 4 C greater than the deceleration ramps in the safeguard protection time that is being used for instantaneous power interruptions, as be used in the safeguard protection time of the instantaneous power interruptions as shown in Fig. 4 B over and done with after the situation of viewed deceleration ramps.
When control device 45 was turned off, spindle motor can not be operated as generator (regenerated energy source).Therefore, in the phase III of this deceleration control, when control device 45 was turned off, mechanical brake 18,18 was actuated.In addition, the present invention is not limited to the structure that mechanical brake 18 is wherein actuated after control device 45 is turned off.This mechanical brake 18 can be actuated before control device 45 is turned off.In this case, mechanical brake 18 can be after control device 45 have detected the off-state of connection/cut-off switch 22 or the rotating speed of rotor be reduced to predetermined or than fractional value after be actuated immediately.
One aspect of the present invention according to claim 1 provides a kind of quick arresting stop that is used for rotor, this device comprises rotor, drive the motor of rotor, control the control device of this motor and be used to survey power interruptions sniffer from the interruption of the supply of electrical energy of power supply, wherein when described power interruptions detection during to power interruptions, the control device indication motor slows down, so that can offer control device from the regenerated energy of motor.Therefore, even after process has been used for the safeguard protection time of instantaneous power interruptions under the situation of long-time power interruptions, this rotor also can promptly stop.
In one aspect of the present invention according to claim 2; in order to control the deceleration of motor; this control device constitute energy interrupt sniffer detected power interruptions after and before instantaneous energy interruption safeguard protection effluxion, carry out control in the safeguard protection time; and the control after later carrying out the safeguard protection time in the safeguard protection time, and will be in the control procedure after the safeguard protection time motor amount of deceleration of time per unit be set at motor amount of deceleration greater than time per unit in the control procedure in the safeguard protection time.Therefore, can make rotating speed maintenance substantially constant for instantaneous power interruptions of rotor.On the other hand, this rotor can promptly stop when long-time power interruptions.Therefore, this aspect advantageous applications of the present invention is on the spindle of doff device.
In one aspect of the present invention according to claim 3, a kind of mechanical brake is provided, be used in safeguard protection time predetermined period later, operating.Therefore, this rotor can promptly stop when long-time power interruptions.
In one aspect of the present invention according to claim 4, a kind of quick arresting stop that is used for rotor is provided, this device comprises: rotor; Drive the motor of this rotor; Control the control device of this motor; And connection/cut-off switch, this switch can interrupt the supply of electrical energy from power supply, and wherein when detecting the off-state of connection/cut-off switch, control device control motor slows down, so that can offer control device from the regenerated energy of motor.Therefore, abnormal conditions occur if adopt in the device of this quick arresting stop thereon, for example under the situation of emergency shutdown, this rotor can stop rapidly from the rotation under the abnormality.
In one aspect of the present invention according to claim 5, a kind of mechanical brake is provided, be used for operating in the predetermined period after the off-state that detects connection/cut-off switch.Therefore, this rotor can more promptly stop when long-time power interruptions.
In the one aspect of the present invention according to claim 6, described control device Sustainable Control motor slows down, up to this control device owing to regenerated energy is turned off inadequately.
In one aspect of the present invention according to claim 7, provide a kind of as claim 3 or 5 described devices, wherein, described control device constitutes the Sustainable Control motor and slows down, owing to regenerated energy is turned off inadequately, and be set to appearance control device turn-offs after the period of mechanical brake operation up to this control device.This is used for making that this mechanical brake is more durable.In addition, can make this mechanical brake miniaturization.
Particularly, as described in claim 8, the present invention preferably is applicable to be provided with and is used for winding yarn to form the doff equipment of the spindle of packing.
Claims (8)
1. quick arresting stop that is used for rotor, this device comprises: rotor; Drive the motor of this rotor; Control the control device of this motor; And energy interrupts sniffer, be used for surveying interruption, it is characterized in that, when energy interrupts detection to power interruptions from the supply of electrical energy of power supply, the control device indication motor slows down, so that can offer control device from the regenerated energy of motor.
2. device as claimed in claim 1; it is characterized in that; deceleration for the control motor; this control device be designed to energy interrupt sniffer detected power interruptions after and before instantaneous energy interruption safeguard protection effluxion, carry out control in the safeguard protection time; and the control after later carrying out the safeguard protection time in the safeguard protection time, and will be in the control procedure after the safeguard protection time motor amount of deceleration of time per unit be set at motor amount of deceleration greater than time per unit in the control procedure in the safeguard protection time.
3. device as claimed in claim 2 is characterized in that, is provided with mechanical brake, is used for operating in safeguard protection time predetermined period later.
4. quick arresting stop that is used for rotor, this device comprises: rotor; Drive the motor of this rotor; Control the control device of this motor; And connection/cut-off switch, this switch can interrupt the supply of electrical energy from power supply, it is characterized in that, and when detecting the off-state of connection/cut-off switch, the control device indication motor slows down, so that can offer control device from the regenerated energy of motor.
5. device as claimed in claim 4 is characterized in that, is provided with mechanical brake, is used for operating in the predetermined period after the off-state that detects connection/cut-off switch.
6. as each described device among the claim 1-5, it is characterized in that described control device Sustainable Control motor slows down, up to this control device owing to regenerated energy is turned off inadequately.
7. as claim 3 or 5 described devices, it is characterized in that, described control device constitutes Sustainable Control control motor and slows down, and owing to regenerated energy is turned off inadequately, and mechanical brake period of operating is set to appearance after control device turn-offs up to this control device.
8. as each described device among the claim 1-7, it is characterized in that described rotor is used for winding yarn in doff equipment, to form the spindle of packing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP088784/2002 | 2002-03-27 | ||
| JP2002088784A JP3589227B2 (en) | 2002-03-27 | 2002-03-27 | Quick stop device for rotating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1447517A true CN1447517A (en) | 2003-10-08 |
Family
ID=28449471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03108262 Pending CN1447517A (en) | 2002-03-27 | 2003-03-26 | Fast stop for rotary body |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3589227B2 (en) |
| CN (1) | CN1447517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867337A (en) * | 2010-03-08 | 2010-10-20 | 韦增机械(佛山高明)有限公司 | Intelligent braking method for knitting machine |
| CN102769416A (en) * | 2011-05-06 | 2012-11-07 | 三菱电机株式会社 | Control device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067894A1 (en) * | 2012-10-30 | 2014-05-08 | Inventio Ag | Device for preventing excessive speed of a door leaf caused by a power accumulator |
| KR102321225B1 (en) * | 2014-12-22 | 2021-11-03 | 두산공작기계 주식회사 | Drive circuit for spindle and drive method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0287986A (en) * | 1988-09-23 | 1990-03-28 | Honda Motor Co Ltd | Servo motor controller |
| DE4333064A1 (en) * | 1993-09-29 | 1995-03-30 | Scintilla Ag | Brake circuit for a universal motor |
| JP3188226B2 (en) * | 1997-10-01 | 2001-07-16 | 東レエンジニアリング株式会社 | Drive control method in synthetic fiber yarn manufacturing device |
| JPH11164589A (en) * | 1997-11-28 | 1999-06-18 | Toshiba Fa Syst Eng Corp | Inverter device |
| JP3180754B2 (en) * | 1998-03-13 | 2001-06-25 | 村田機械株式会社 | Power outage treatment device in multiple twisting machine |
| JP2001212778A (en) * | 2000-02-02 | 2001-08-07 | Ckd Corp | Controller for robot |
| JP2001253650A (en) * | 2000-03-15 | 2001-09-18 | Mitsubishi Electric Corp | Controller of elevator |
-
2002
- 2002-03-27 JP JP2002088784A patent/JP3589227B2/en not_active Expired - Lifetime
-
2003
- 2003-03-26 CN CN 03108262 patent/CN1447517A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867337A (en) * | 2010-03-08 | 2010-10-20 | 韦增机械(佛山高明)有限公司 | Intelligent braking method for knitting machine |
| CN101867337B (en) * | 2010-03-08 | 2014-07-09 | 韦增机械(佛山高明)有限公司 | Intelligent braking method for knitting machine |
| CN102769416A (en) * | 2011-05-06 | 2012-11-07 | 三菱电机株式会社 | Control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003289684A (en) | 2003-10-10 |
| JP3589227B2 (en) | 2004-11-17 |
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