Process and device to sever the fiber sliver on a textile machine delivering a fiber sliver
AssigneeRieter Ingolstadt Spinnereimaschinenbau AG
InventorsAlbert Kriegler, Bernhard Mohr
Life of this patent
Estimating the term…
Abstract
A process, and machine for carrying out the process, for severing a fiber sliver at a textile machine includes conveying the fiber sliver by a pair calendar rollers through a sliver guiding channel of a rotary plate into a sliver can disposed below the rotary plate. The calendar rollers are stopped, and thus also the conveyance of the sliver. A severing point is defined in the sliver downstream of the calendar rollers by drafting the fiber sliver with a moveable clamping device at a desired location of the severing point. Once the fiber has been drafted at the severing point, the sliver is severed by displacement of the can from below the rotary plate.
Claims18
A process for severing a fiber sliver on a textile machine which delivers a fiber sliver by a pair of calendar rollers through a sliver guiding channel defined in a rotary plate into a sliver can disposed below the rotary plate, said process comprising the steps of:
- conveying the fiber sliver by the pair of calendar rollers into the sliver guiding channel defined in the rotary plate and into the sliver can disposed below the rotary plate;
- stopping said conveying of the fiber sliver by the calendar rollers;
- clamping the fiber sliver with a clamping device between the calendar rollers and the rotary plate so that the fiber sliver is clamped between the calendar rollers and the clamping device;
- defining a drafted severing point in the fiber sliver between the calendar rollers and clamping device by displacing the clamping device relative to the calendar rollers;
- and
- severing the fiber sliver at the drafted severing point.
A textile machine having a device for severing a fiber sliver delivered by the textile machine, said machine comprising:
- a pair of calendar rollers configured for conveying a fiber sliver therebetween;
- a rotary plate having a sliver guiding channel defined therethrough, said rotary plate operably disposed downstream from said calendar rollers for delivering the sliver into a can disposed below said rotary plate;
- a displaceable clamping device operably disposed between said calendar rollers and said rotary plate, said clamping device displaceable along a displacement path defined relative to a conveying direction of the fiber sliver, said clamping device configured to grasp the sliver at a position between said calendar rollers and said sliver guiding channel whereby subsequent displacement of said clamping device along said displacement path drafts the sliver thereby defining a severing point at the drafted portion of the sliver;
- a can displacement device moving the can from below said rotary plate once the sliver has been drafted thereby severing the sliver at the drafted severing point on the sliver;
- and
- a control circuit configured with said clamping device and said displacement device controlling movement thereof to cause the sliver to be drafted and subsequently severed at the drafted portion of the sliver.
Dependencies are inferred from the claim text.