Top roller unit for a drafting apparatus of a spinning machine
AssigneeWilhelm Stanlecker GmbH
InventorHans Stahlecker
Life of this patent
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Abstract
A top roller unit is arranged on a top weighting arm for a drafting apparatus of a spinning machine, which top roller unit has a holding device and two double top rollers and is arranged at two adjacent spinning stations. A first top roller of a spinning station borders a drafting zone which serves to draft a fiber strand, and a second top roller of a spinning station borders a condensing zone which serves to condense the fiber strand and which is arranged downstream of the drafting zone. The second top roller of each spinning station is driven via a drive by the first top roller, which drive takes the form of an intermediate gear which is common to all the top rollers of the top roller unit. The top roller unit is supported by a housing which encapsulates the intermediate gear.
Claims35
A top roller unit for a top weighting arm for a drafting apparatus of a spinning machine, which top roller unit comprises a holding device and two double top rollers, which each comprise two top rollers respectively arranged on a common rotatable axle, whereby in a transport direction of fiber strands being drafted in use, the first top rollers border a drafting zone for the fiber strands, and the second top rollers border a condensing zone arranged downstream of the drafting zone, and whereby the second top rollers are driven via a drive by the first top rollers, wherein the drive includes an intermediate gear drive which is common to all the top rollers of the top roller unit, and wherein both the double top rollers are fixedly arranged on the respective rotatable axles.
A top roller unit for a top weighting arm for a drafting apparatus of a spinning machine, which top roller unit comprises a holding device and two double top rollers, which each comprise two top rollers respectively arranged on a common rotatable axle, whereby in a transport direction of fiber strands being drafted in use, the first top rollers border a drafting zone for the fiber strands, and the second top rollers border a condensing zone arranged downstream of the drafting zone, and whereby the second top rollers are driven via a drive by the first top rollers, wherein the drive includes an intermediate gear drive which is common to all the top rollers of the top roller unit, and wherein both the double top rollers are fixedly arranged on the respective rotatable axles, and
- comprising a holding device with a housing encapsulating the intermediate gear drive, through which housing the axles of the double top roller are guided through in a sealed way.
A top roller unit for a top weighting arm for a drafting apparatus of a spinning machine, which top roller unit comprises a holding device and two double top rollers, which each comprise two top rollers respectively arranged on a common rotatable axle, whereby in a transport direction of fiber strands being drafted in use, the first top rollers border a drafting zone for the fiber strands, and the second top rollers border a condensing zone arranged downstream of the drafting zone, and whereby the second top rollers are driven via a drive by the first top rollers, wherein the drive includes an intermediate gear drive which is common to all the top rollers of the top roller unit, and wherein both the double top rollers are fixedly arranged on the respective rotatable axles, and
- wherein the intermediate gear drive comprises three toothed wheels, of which a respective toothed wheel is arranged on the axles of the double top roller and the third toothed wheel is a transfer wheel which bridges the distance between the two other toothed wheels.
A top roller unit for a top weighting arm for a drafting apparatus of a spinning machine, which top roller unit comprises a holding device and two double top rollers, which each comprise two top rollers respectively arranged on a common rotatable axle, whereby in a transport direction of fiber strands being drafted in use, the first top rollers border a drafting zone for the fiber strands, and the second top rollers border a condensing zone arranged downstream of the drafting zone, and whereby the second top rollers are driven via a drive by the first top rollers, wherein the drive includes an intermediate gear drive which is common to all the top rollers of the top roller unit, and wherein both the double top rollers are fixedly arranged on the respective rotatable axles,
- wherein, in transport direction of the fiber strands, the first double top roller of the top roller unit is nested with its axle in a spring-mounted take-up of the top weighting arm,
- wherein the spring-mounted take-up comprises a loading spring for the first double top roller, and
- wherein, in transport direction of the fiber strand, a loading spring of its own, arranged on the top weighting arm, is placed to the second double top roller.
An assembly for a spinning machine, comprising:
- sliver drafting rollers rotatably fixed to a first shaft and operable in use to form a downstream end of a drafting zone for respective adjacent spinning stations, said first and second drafting rollers being spaced axially from one another along the first shaft, forming a first intermediate space between facing ends of the first and second drafting rollers,
- first and second nipping rollers rotatably fixed to a second shaft and operable in use to form downstream ends of respective condensing zones disposed downstream of the respective drafting zones, said first and second nipping rollers being spaced from one another along the second shaft, forming a second intermediate space between facing ends of the first and second nipping rollers,
- an intermediate drive disposed to drivingly engage said first and second shafts at locations in the respective first and second intermediate spaces, and
- a holding device operable to support the intermediate drive and the first and second shafts and associated rollers.
A sliver processing assembly for a spinning machine, comprising:
- an intermediate drive which in use drivingly connects a first pair of rollers at a downstream end of a drafting zone with a second pair of rollers at a downstream end of a condensing zone disposed downstream of the drafting zone, and
- a housing encapsulating the intermediate drive to thereby seal the intermediate drive against fiber fly.
A top roller unit for a top weighting arm for a drafting apparatus of a spinning machine, which top roller unit comprises a holding device and two double top rollers, which each comprise two top rollers respectively arranged on a common axle, whereby in a transport direction of fiber strands being drafted in use, the first top rollers border a drafting zone for the fiber strands, and the second top rollers border a condensing zone arranged downstream of the drafting zone, and whereby the second top rollers are driven via a drive by the first top rollers, wherein the drive includes an intermediate drive which is common to all the top rollers of the top roller unit, and wherein both the double top rollers are fixedly arranged on the respective rotatable axles,
- wherein, in transport direction of the fiber strands, the first double top roller of the top roller unit is nested with its axle in a spring-mounted take-up of the top weighting arm,
- wherein the spring-mounted take-up comprises a loading spring for the first double top roller, and
- wherein, in transport direction of the fiber strand, a loading spring of its own, arranged on the top weighting arm, is placed to the second double top roller.
Dependencies are inferred from the claim text.