Textiles: spinning – twisting – and twining – Apparatus and processes – Driving
Reexamination Certificate
1999-04-16
2001-03-27
Vanatta, Amy B. (Department: 3741)
Textiles: spinning, twisting, and twining
Apparatus and processes
Driving
C057S058490, C057S0010UN, C057S088000
Reexamination Certificate
active
06205759
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an individual-spindle-drive type textile machine provided with a drive motor for each spindle unit so that the rotation speed of the drive motor, or the like, is individually controlled based on a command from a central control section.
BACKGROUND OF THE INVENTION
Due to advancements in inverter equipment and the integration of electronic control circuits, a precise control of a rotation speed of a motor and a yarn breakage detection can be processed by means of a small-sized electronic circuit board. In a textile machine in which a number of spindle units, such as 100 to 200 spindle units, are arranged in a line, therefore, an individual motor is provided for each spindle unit, and a control board is provided for each motor so that there is adopted a system for simultaneously or individually controlling the rotation speed of each spindle by a control signal from the central control section.
To provide a drive motor and its control board individually for each spindle unit and to drive and control the motor and board individually, it is necessary to provide a power supply line and a control signal line to the motor and board, respectively. Therefore, as the number of spindle units increases, the number of wires for each motor or its control board also increases. As a result, the wiring lines are extremely complicated and difficult to service or adjust.
For example, if a yarn breakage or a fault occurs with a specific spindle unit, an operator must restore the spindle unit on-site. In the case in which a greater number of spindle units is used, and each spindle unit is arranged in a line in two spacedly parallel arrays, one in front of the unit and the other in the rear of the unit, the operator must walk a long distance from the front array to the rear array, thus hampering maintenance efficiency. In addition, work efficiency is also lowered by the fact that when these control boards are mounted, the operator must mount them while moving from the front array to the rear array.
SUMMARY OF THE INVENTION
To overcome the above problems, the present invention provides an individual-spindle-drive type textile machine wherein a spindle unit group array in which a plurality of spindle units provided with respective specific drive motors for each spindle unit are laterally arranged in a line are disposed in parallel in at least two arrays, one in front and one in the rear, characterized in that a oblong wiring duct box is disposed along the spindle unit group array between the front and rear spindle unit group arrays, the wire line for the drive motor is extended and routed longitudinally on one face inside the duct box, and a plurality of electronic boards for controlling the motors are detachably connected to the wire line in the same direction.
REFERENCES:
patent: 4888452 (1989-12-01), Krehl et al.
patent: 5224331 (1993-07-01), Stahlecker et al.
patent: 5396757 (1995-03-01), Kobayashi et al.
patent: 5906092 (1999-05-01), Hattori
patent: 64-68527 (1989-03-01), None
patent: 64-68526 (1989-03-01), None
Armstrong, Westerman Hattori, McLeland & Naughton
Fiore Mary K.
Murata Kikai Kabushiki Kaisha
Vanatta Amy B.
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