Spinning machine compaction apparatus with suction drum

Patent metadata

Field	Value
Publication number	US-10030324-B2
Application number	US-201515121988-A
Country	US
Kind code	B2
Filing date	Feb 16, 2015
Priority date	Feb 27, 2014
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

An apparatus for compacting a fiber sliver on a spinning machine, has a carrier which has a receptacle for a bolt. A rotatably mounted suction drum has a closed end face and an open end face. A bearing element is disposed in the region of the closed end face. The suction drum is rotatably mounted on an end section of the bolt by the bearing element so that the bolt protrudes out of the open end face of the suction drum. To permit assembly and/or disassembly of the suction drum during the entire running time of the compaction apparatus, the suction drum is affixed axially by means of the bearing element with the bolt, as seen in its axial direction, so that the suction drum and the bolt form a separate unit of the apparatus. A fastening means by means of which the bolt is releasably fastened in the receptacle is provided.

First claim

The invention claimed is:

1. An apparatus for compacting a fiber sliver on a spinning machine, comprising:
a carrier, and a receptacle defined in the carrier;
a bolt received in the receptacle;
a rotatably mounted suction drum affixed to a first end section of the bolt, the suction drum comprising a closed end face and an open end face;
a bearing element disposed at the closed end face, the suction drum mounted on the first end section of the bolt by the bearing element, wherein an opposite free end of the bolt protrudes out of the open end face of the suction drum;
the suction drum affixed axially by the bearing element with the bolt so that the suction drum and the bolt form a single unit that is removable from the apparatus without removing the suction drum from the bolt, and the single unit insertable back into the apparatus by insertion of the free end of the bolt into the receptacle; and
a fastening device that releasably fixes the bolt in the receptacle.

2. The apparatus according to claim 1 , wherein the fastening device is a radial fastening device.

3. The apparatus according to claim 1 , wherein the bearing element is a roller bearing comprising an outer ring, an inner ring connected to the end section of the bolt, and rolling elements, the suction drum connected to the outer ring in a rotationally fixed manner and the bolt connected to the inner ring, and the suction drum rotatable on the inner ring via the rolling elements.

4. The apparatus according to claim 1 , wherein the bearing element is a roller bearing comprising an outer ring and rolling elements, the suction drum connected to the outer ring in a rotationally fixed manner with the rolling elements disposed between the outer ring and the end section of the bolt such that the suction drum is directly supported by the rolling elements for rotation on the end section of the bolt.

5. The apparatus according to claim 1 , wherein the carrier is housed in a receptacle, and further comprising a screw in the receptacle that releasably fastens the bolt in the carrier.

6. The apparatus according to claim 1 , further comprising a securing pin fastened on the carrier that engages to axially fix the bolt in the receptacle.

7. An apparatus for compacting a fiber sliver on a spinning machine, comprising:
a carrier, and a receptacle defined in the carrier;
a bolt received in the receptacle;
a rotatably mounted suction drum affixed to the bolt, the suction drum comprising a closed end face and an open end face;
a bearing element disposed at the closed end face, the suction drum mounted on an end section of the bolt by the bearing element, wherein an end of the bolt protrudes out of the open end face of the suction drum;
the suction drum affixed axially by the bearing element with the bolt so that the suction drum and the bolt form a single unit that is removable from the apparatus; and
a fastening device that releasably fixes the bolt in the receptacle; and
wherein the fastening device comprises a locking element having a subsection that is flexibly yielding in a radial direction toward the bolt, the bolt further comprising a peripheral recess into which the subsection protrudes to axially fix the bolt in the receptacle.

8. The apparatus according to claim 7 , wherein the receptacle is defined by a sleeve disposed in the carrier in a rotationally fixed manner, the locking element configured on the sleeve.

9. The apparatus according to claim 8 , wherein the sleeve is plastic.

10. The apparatus according to claim 7 , wherein a diameter of the bolt decreases toward the recess in the bolt at an angle between 25° and 60° with respect to a central axis of the bolt.

11. The apparatus according to claim 7 , wherein a diameter of the bolt tapers at the end of the bolt protruding out of the suction drum at an angle between 25° and 60° with respect to a central axis of the bolt.

12. The apparatus according to claim 7 , wherein the flexibly yielding subsection comprises a tongue-shaped section that extends in a longitudinal direction of the bolt and has a free end that protrudes into the peripheral recess in the bolt.

13. The apparatus according to claim 12 , wherein the free end of the tongue-shaped section points in a direction of the suction drum.

14. The apparatus according to claim 12 , wherein an inside surface of the tongue-shaped section runs at an angle between 10° and 25° with respect to a central axis of the bolt.

15. A spinning machine comprising the apparatus for compaction of a fiber sliver according to claim 1 .

Assignees

• Rieter Ag Maschf

Inventors

• Schneider Gabriel
• Nägeli Robert

Classifications

• D01H13/00

  Other common constructional features, details or accessories · CPC title

• D01H5/70 Primary

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• D01H5/72 Primary

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