Process and device to guide and sever a thread upon bobbin repla

Details Process and device to guide and sever a thread upon bobbin repla Process and device to guide and sever a thread upon bobbin repla

1990-02-28

1991-04-09

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 19, B65H 5402, B65H 5434

Patent

active

050057766

ABSTRACT:
A process for replacing a full wound bobbin on a bobbin winding machine with an empty bobbin support, wherein the yarn is wound onto the bobbin support in a bobbin winding zone by a traversing yarn guide. The process includes moving the traversing yarn guide out of the winding zone when the bobbin is completed, and into a cutting and clamping zone for severing the yarn. The yarn continues to be fed by the spinning machine, and will be collected by a suction pipe while the full bobbin is being replaced by an empty support. The suction pipe moves the yarn into a position to be clamped and cut by a cutting and clamping device, which rotates with the support for the bobbin. The yarn is guided to wind a reserve onto the end of the bobbin support before moving the yarn back into the winding zone to be wound by the traversing means onto the empty bobbin support.
The invention also includes a device for carrying out the process of the invention. This device comprises a traversing yarn guide which is detachably connected to the yarn traversing means by a permanent magnet. When the full bobbin is completed, means are provided for detaching the yarn traversing guide from the yarn traversing means, and to move it into the cutting and clamping zone.

REFERENCES:
patent: 3823884 (1974-07-01), Sartori
patent: 4084760 (1978-04-01), Nakano et al.
patent: 4111375 (1978-09-01), Dolle
patent: 4154409 (1979-05-01), Reisser et al.
patent: 4431138 (1984-02-01), Schiminski et al.
patent: 4591105 (1986-05-01), Niederer
patent: 4634064 (1987-01-01), Burkhard et al.
patent: 4687148 (1987-08-01), Schuller et al.
patent: 4739940 (1988-04-01), Flueli et al.

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