Back to results
US 5,704,096 AGranted
Drafting arrangement for spinning machines
AssigneesFritz Stahlecker, Hans Stahlecker
InventorKurt Lang
Life of this patent
Estimating the term…
Abstract
In the case of a drafting arrangement for a spinning machine, at least one drafting zone has a sliver guide with a guiding surface for the travelling sliver. The sliver guide is arranged in a wedge-shaped gap, which is formed by a roller pair downstream of the drafting zone. According to the present invention, the sliver guide comprises a sliver brake with a pressing element which slides on the sliver. The pressing element is resilient with a pressure in the direction towards the guiding surface, and is disposable against the travelling sliver. The evenness of the drafting is thereby improved.
Claims25
A drafting arrangement for spinning machines, comprising:
- at least three roller pairs forming a plurality of drafting zones in the travelling direction of a sliver, each roller pair forming a wedge-shaped gap for the sliver,
- and a sliver guide in at least one of the drafting zones, said sliver guide being arranged inside the wedge-shaped gap at the downstream end of the relevant drafting zone,
- wherein the sliver guide comprises:
- a guiding surface,
- and a sliver brake arranged at the wedge-shaped gap, said sliver brake including a pressing element which slides on the sliver, which is resilient with a pressure in the direction towards said guiding surface, and which is disposable against the travelling sliver,
- wherein the sliver brake comprises two opposing pressing elements, which are disposed with opposing pressures against each other, of which pressing elements at least one comprises a guiding surface.
3 more elements
A drafting arrangement for spinning machine, comprising:
- at least three roller pairs forming a plurality of drafting zones in the travelling direction of a sliver, each roller pair forming a wedge-shaped gap for the sliver,
- and a sliver guide in at least one of the drafting zones, said sliver guide being arranged inside the wedge-shaped gap at the downstream end of the relevant drafting zone,
- wherein the sliver guide comprises:
- a guiding surface,
- and a sliver brake arranged at the wedge-shaped gap,
- said sliver brake including a pressing element which slides on the sliver which is resilient with a pressure in the direction towards said guiding surface, and which is disposable against the travelling sliver,
- wherein the sliver brake is positioned at a sliver condenser, which comprises a wall containing the guiding surface and a slit disposed opposite at a distance therefrom, which slit is at least partly covered by the pressing element.
4 more elements
A drafting arrangement for spinning machines, comprising:
- at least three roller pairs forming plurality of drafting zones in the travelling direction of a sliver, each roller pair forming a wedge-shaped gap for the sliver,
- and a sliver guide in at least one of the drafting zones, said sliver guide being arranged inside the wedge-shaped gap at the downstream end of the relevant drafting zone,
- wherein the sliver guide comprises:
- a guiding surface,
- and a sliver brake arranged at the wedge-shaped gap,
- said sliver brake including a pressing element which slides on the sliver, which is resilient with a pressure in the direction towards said guiding surface, and which is disposable against the travelling sliver,
- wherein the sliver brake is supported on a holder secured to a traversing rail which traverses in an axial direction of the roller pairs.
4 more elements
A drafting arrangement for spinning machines, comprising:
- at least three roller pairs forming a plurality of drafting zones in the travelling direction of a sliver, each roller pair forming a wedge-shaped gap for the sliver,
- and a sliver guide in at least one of the drafting zones, said sliver guide being arranged inside the wedge-shaped gap at the downstream end of the relevant drafting zone,
- wherein the sliver guide comprises:
- a sliver condensor having a guiding surface, said sliver condensor having a funnel tapering shape in a travelling direction of the sliver,
- a sliver brake integrated into said sliver condensor and being arranged at the wedge-shaped gap, said sliver brake including a pressing element which slides on the sliver, which is resilient with a pressure in the direction towards said guiding surface, and which is disposable against the travelling sliver, and
- wherein at least a portion of one wall surface of said sliver condensor is loaded with a preset force in a direction of an opposite wall surface.
3 more elements
A drafting arrangement for spinning machines, comprising:
- at least three roller pairs forming a plurality of drafting zones in the travelling direction of a sliver, each roller pair forming a wedge-shaped gap for the sliver,
- and a sliver guide in at least one of the drafting zones, said sliver guide being arranged inside the wedge-shaped gap at the downstream end of the relevant drafting zone,
- wherein the sliver guide comprises:
- a guiding surface,
- and a sliver brake arranged in a pre-drafting zone in close proximity in front of the wedge shaped gap of one of said three roller pairs which limits said pre-drafting zone, said sliver brake including a pressing element which slides on the sliver, which is resilient with a pressure in the direction towards said guiding surface, and which is disposable against the travelling sliver.
2 more elements
A drafting arrangement for spinning machines, comprising:
- at least three roller pairs forming a plurality of drafting zones in the travelling direction of a sliver, each roller pair forming a wedge-shaped gap for the sliver,
- and a sliver guide in at least one of the drafting zones, said sliver guide being arranged inside the wedge-shaped gap at the downstream end of the relevant drafting zone,
- wherein the sliver guide comprises:
- a guiding surface,
- and a sliver brake arranged at the wedge-shaped gap,
- said sliver brake including a pressing element which slides on the sliver, which is resilient with a pressure in the direction towards said guiding surface, and which is disposable against the travelling sliver, and
- wherein said sliver brake arranged at the wedge-shaped gap is located immediately in front of one of said roller pairs which receives an upper apron and a lower apron of the apron guide.
4 more elements
Dependencies are inferred from the claim text.