Title:
【発明の名称】電子的糸張力制御機能を有する給糸装置
Document Type and Number:
Japanese Patent JP2541574
Kind Code:
B2
Abstract:
A yarn supply element (5, 150) that supplies the yarn substantially without slip and is rotatably supported has yarn guide elements (14, 15, 16; 158) and is coupled to an electric motor (3) of regulated frequency that drives it. In the yarn travel path following the yarn supply element, there are yarn tension sensing means (21) that monitor the yarn (17) unwinding from the yarn supply element and that emit and electrical signal that is supplied to a control circuit (52), which supplies the motor with a frequency signal. To assure satisfactory yarn supply even in the event of abrupt changes in yarn utilization, a device (21, 19) for forming a yarn reserve is provided along the yarn travel path following the yarn supply element. The size of the yarn reserve is dimensioned to be sufficient to cover the yarn requirement during start up of the motor. Associated with this device are means (28, 50-55) for automatically refilling the yarn reserve to an original size no later than after the startup of the motor. Furthermore the control circuit also has a circuit arrangement (63) which at least during the startup of the motor limits the variation over time of the frequency of the frequency signal (53) in such a manner that the loaded motor is capable of following up the change in frequency.
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Inventors:
GUSUTAFU MEMINGAA
FUARUKU KYUUN
HAINTSU FUAPUSHITSUTSU
FUARUKU KYUUN
HAINTSU FUAPUSHITSUTSU
Application Number:
JP20324287A
Publication Date:
October 09, 1996
Filing Date:
August 17, 1987
Export Citation:
Assignee:
MEMMINGER IRO GMBH
International Classes:
B65H51/22; B65H59/38; D04B15/44; D02H1/00; D03D47/36; D04B15/48; (IPC1-7): D04B15/44; B65H59/38
Domestic Patent References:
| JP4896864A | ||||
| JP4920467A | ||||
| JP5253051A | ||||
| JP6151466A | ||||
| JP4930653U |
Attorney, Agent or Firm:
Toshio Yano (2 outside)