| (19) |
 |
|
(11) |
EP 0 422 420 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
24.07.1991 Bulletin 1991/30 |
| (43) |
Date of publication A2: |
|
17.04.1991 Bulletin 1991/16 |
| (22) |
Date of filing: 19.09.1990 |
|
| (51) |
International Patent Classification (IPC)5: D01H 1/34 |
|
| (84) |
Designated Contracting States: |
|
CH DE IT LI |
| (30) |
Priority: |
20.09.1989 JP 244649/89
04.10.1989 JP 259635/89
|
| (71) |
Applicant: Kabushiki Kaisha
Toyoda Jidoshokki Seisakusho |
|
Aichi-ken (JP) |
|
| (72) |
Inventors: |
|
- Konaka, Kohichi,
c/o Kabushiki Kaisha Toyoda
Kariya-shi,
Aichi-ken (JP)
- Shibuya, Makoto,
c/o Kabushiki Kaisha Toyoda
Kariya-shi,
Aichi-ken (JP)
- Seiki, Kazuo,
c/o Kabushiki Kaisha Toyoda
Kariya-shi,
Aichi-ken (JP)
- Kitamura, Atsushi,
c/o Kabushiki Kaisha Toyoda
Kariya-shi,
Aichi-ken (JP)
|
| (74) |
Representative: Tiedtke, Harro, Dipl.-Ing. et al |
|
Patentanwaltsbüro
Tiedtke-Bühling-Kinne & Partner
Bavariaring 4
80336 München
80336 München (DE) |
|
| |
|
| (54) |
Method of spindle actuating control for spinning machine |
(57) A spindle actuating controller (6) is provided for a spinning machine having a variable
speed motor (2) for actuating spindles (1) in order to wind thread around bobbins
carried by the spindles. The controller (6) calculates desired speed gradients on
the basis of desired spindle rotating speed at various stages in the winding process.
The spindle rotating speed is then increased or reduced gradually and not abruptly.
Accordingly, the traveler can always run on the ring flange smoothly in a stable posture
even when the spindle is rotated at a maximum level of 20000 to 25000 rpm.