Claims
- 1. In a spinning machine comprising a plurality of units arranged in a row and a doffing device capable of reciprocally travelling along the row of units, a method of controlling the doffing device to move to a unit requiring doffing, comprising:
- providing the doffing device with means for identifying the position of the doffing device along the row of units,
- identifying the position of a unit requiring doffing,
- inputting to a central control device information identifying the position of the unit requiring doffing,
- identifying the position of the doffing device along the row of units,
- inputting to the central control device information identifying the position of the doffing device along the row of units,
- comparing the information identifying the position of the unit requiring doffing and the information identifying the position of the doffing device along the row of units, and
- providing the doffing device with instructions for moving the doffing device to the unit requiring doffing based upon the comparison of the information identifying the position of the unit requiring doffing and the information identifying the position of the doffing device along the row of units.
- 2. In a spinning machine comprising a plurality of units arranged in a row and a doffing device capable of reciprocally travelling along the row of units, wherein the doffing device is operable to doff a predetermined range of units within the row of units, a method of controlling the doffing device to move to a unit requiring doffing, comprising:
- providing the doffing device with means for identifying the position of the doffing device along the row of units,
- identifying the position of a unit requiring doffing,
- determining whether the unit requiring doffing is within the predetermined range of units,
- moving the doffing device to a standby position when the unit requiring doffing is not within the predetermined range of units,
- inputting to a central control device information identifying the position of the unit requiring doffing when the unit requiring doffing is within the predetermined range of units,
- identifying the position of the doffing device along the row of units,
- inputting to the central control device information identifying the position of the doffing device along the row of units,
- comparing the information identifying the position of the unit requiring doffing and the information identifying the position of the doffing device along the row of units, and
- providing the doffing device with instructions for moving the doffing device to the unit requiring doffing based upon the comparison of the information identifying the position of the unit requiring doffing and the information identifying the position of the doffing device along the row of units.
Priority Claims (3)
Number |
Date |
Country |
Kind |
3-123809 |
May 1991 |
JPX |
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3-188164 |
Jul 1991 |
JPX |
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3-188165 |
Jul 1991 |
JPX |
|
Parent Case Info
This is a division of U.S. patent application Ser. No. 07/889,183, filed on May 27, 1992.
US Referenced Citations (5)
Divisions (1)
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Number |
Date |
Country |
Parent |
889183 |
May 1992 |
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