DE611250C - Device for achieving a smooth start of three-phase motors for driving spinning machines - Google Patents
Device for achieving a smooth start of three-phase motors for driving spinning machinesInfo
- Publication number
- DE611250C DE611250C DES92194D DES0092194D DE611250C DE 611250 C DE611250 C DE 611250C DE S92194 D DES92194 D DE S92194D DE S0092194 D DES0092194 D DE S0092194D DE 611250 C DE611250 C DE 611250C
- Authority
- DE
- Germany
- Prior art keywords
- motors
- achieving
- spinning machines
- frequency converter
- smooth start
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009987 spinning Methods 0.000 title claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K47/00—Dynamo-electric converters
- H02K47/18—AC/AC converters
- H02K47/22—Single-armature frequency converters with or without phase-number conversion
- H02K47/26—Single-armature frequency converters with or without phase-number conversion operating as under- or over-synchronously running asynchronous induction machines, e.g. cascade arrangement of asynchronous and synchronous machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Bei Spinnmaschinen ist es vorteilhaft, sämtliche Motoren' einer Maschine oder Spinnbank durch einen gemeinsamen Frequenzumformer zu speisen und über eine Einrichtung zur Erzielung eines sanften Anlaufs nach dem Patent 592 059 anzulassen.In spinning machines, it is advantageous to all of the motors' a machine or To feed the spinning bank through a common frequency converter and through a device to start to achieve a smooth start according to patent 592 059.
Bei Anwendung dieser Einrichtung hat sich nun der Nachteil gezeigt, daß beim Anfahren ein Reißen der Fäden eintrat. Während die meist mit Walzlagern ausgerüsteten Spinnspindeln infolge der verhältnismäßig geringen Reibung leicht anlaufen, stehen die Wellen des Streckwerks unter starker Belastung; die Reibung der Ruhe ist bei ihm daher sehr groß. Werden nun die Motoren zum Antrieb der einzelnen Spindeln und zum Antrieb des Streckwerkes gemeinsam durch eine einzige AnI aß ein richtung über den Frequenzumformer an das Netz angeschlossen, so laufen die Spindeln schnell an und beginnen, den Faden zu drehen, während das Streckwerk die Lunte noch nicht in ausreichendem Maße liefert, da es längere Zeit zum Anlauf braucht oder überhaupt stehenbleibt. DieWhen using this device, the disadvantage has now been shown that when starting There was a break in the threads. While the spinning spindles, which are mostly equipped with roller bearings start easily due to the relatively low friction, the shafts of the drafting system are under heavy load; the friction of rest is therefore very great with him. Now the motors become the drive the individual spindles and to drive the drafting system together through a single ani ate device via the frequency converter connected to the network, the spindles start up quickly and begin the Twist the thread while the drafting system does not yet sufficiently close the fuse because it takes a long time to start up or stops at all. the
*5 Folge ist ein Zerreißen der Fäden.* 5 The result is a break in the threads.
Nach der Erfindung wird dieser Übelstand dadurch vermieden, daß der das Streckwerk antreibende Motor unmittelbar an den Frequenzumformer angeschlossen wird, während zwischen die Motoren der Spinnspindeln und den Frequenzumformer ein gemeinsamer Anlaßwiderstand nach dem Hauptpatent gelegt ist.According to the invention, this drawback is avoided by the fact that the drafting system driving motor is connected directly to the frequency converter while a common starting resistor between the motors of the spinning spindles and the frequency converter is placed after the main patent.
In der Abbildung ist ein Ausführungsbeispiel der Erfindung dargestellt. Der Frequenzumformer i, der vom Motor 2 angetrieben und aus dem Netz 3 gespeist wird, liefert Spannung einer anderen Periodenzahl in die Gruppenleitungen 4, 5, 6, 7, an die jeweilig die Spindeleinzelantriebsmotoren 13 über die Schalter 8, 9, 10, n angeschlossen sind. In eine Phase der zu den Spindelmotoren führenden Gruppenleitungen ist ein veränderlicher Widerstand 12 eingeschaltet, der nach einer gewissen Zeit selbsttätig überbrückt wird. Die Antriebsmotoren 14 der Streckwerke sind dagegen an die Gruppenleitungen vor den Gruppenwiderständen angeschlossen. Infolgedessen wird mit Sicherheit ein Anlaufen des Streckwerkes und damit eine Lieferung von Garn erreicht, so daß die Fäden nicht mehr reißen können. Dabei bleibt der Vorteil gewahrt, daß die Spindeln sanft anlaufen.In the figure, an embodiment of the invention is shown. The frequency converter i, which is driven by the motor 2 and fed from the network 3, supplies voltage of a different number of periods in the group lines 4, 5, 6, 7, to which the individual spindle drive motors 13 are connected via the switches 8, 9, 10, n are. In one phase of the group lines leading to the spindle motors, a variable resistor 12 is switched on, which is automatically bridged after a certain time. The drive motors 14 of the drafting devices, on the other hand, are connected to the group lines in front of the group resistors. As a result, a start-up of the drafting system and thus a delivery of yarn is achieved with certainty, so that the threads can no longer tear. This retains the advantage that the spindles start up gently.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES92194D DE611250C (en) | Device for achieving a smooth start of three-phase motors for driving spinning machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES92194D DE611250C (en) | Device for achieving a smooth start of three-phase motors for driving spinning machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE611250C true DE611250C (en) | 1935-03-25 |
Family
ID=7517058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES92194D Expired DE611250C (en) | Device for achieving a smooth start of three-phase motors for driving spinning machines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE611250C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763411C (en) * | 1937-11-17 | 1953-09-14 | Kulmbacher Spinnerei | Ring spinning machine for the production of sliver similar to sliver yarn |
-
0
- DE DES92194D patent/DE611250C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763411C (en) * | 1937-11-17 | 1953-09-14 | Kulmbacher Spinnerei | Ring spinning machine for the production of sliver similar to sliver yarn |
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