# US 2013/0239369 A1 · Spinning Machine Comprising a Compaction Device

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- Number: US 2013/0239369 A1
- Document ID: US20130239369A1
- Status: Published application
- Kind: A1
- Application number: 13/989,613
- Filed: 2011-11-23
- Published: 2013-09-19
- Earliest claimed: 2010-11-26
- Assignees: Maschinenfabrik Rieter AG
- Inventors: Gabriel Schneider; Ludek Malina; Radek Zarecky; Petr Blazek
- Web page: https://patentgrep.com/patent/US20130239369A1

## CPC

- D01H 5/72: Fibre-condensing guides
- D01H: SPINNING OR TWISTING (twisting oakum D01G35/00; crimping or curling of fibres, filaments, or yarns D02G1/00)

## Abstract

The invention relates to a device for compacting a sliver (V) on a spinning machine, the sliver being delivered by a pair of delivery rollers (7, 8) of a drafting system unit (2) to a suctioned guide surface of a suction zone (Z) of a subsequent driven, revolving compaction element (17) that is acted on by suction air. At least one rotatably supported nip roller (33) is associated with the compaction element downstream from the suction zone (Z) to form a nip line (P). To retrofit existing spinning machines with a compaction device, heretofore additional complex drive means have been installed, sometimes requiring a very high expenditure of time for installing such devices. Therefore, to avoid these disadvantages a device is proposed wherein the compaction element (17) and the nip roller (33) are rotatably supported on a shared support (20) which is detachably fastened to the spinning machine via fastening means (46), and the revolving compaction element (17), which is provided with openings (Ö), has at least one drive element (28) which forms a drive connection with the bottom roller (7) of the pair of delivery rollers (7, 8) via a weighting device (55, 58) when the compaction element is transferred from an idle position to an operating position. The support has a suction channel (SK) for the suction air of the compaction element (17), and a first end (S1) of the suction channel (SK) is connected to the compaction element, and a second end (S2) of the suction channel (SK) ends in the area of the support (20), by means of which the support in its installed position is fastened to the spinning machine.

## Claims

### Claim 1

Device for compacting a sliver (V) on a spinning machine, the sliver being delivered by a pair of delivery rollers (7, 8) of a drafting system unit (2) to a suctioned guide surface of a suction zone (Z) of a subsequent driven, revolving compaction element (17) that is acted on by suction air, at least one rotatably supported nip roller (33) being associated with the compaction element downstream from the suction zone (Z) to form a nip line (P), characterized in that the compaction element (17) and the nip roller (33) are rotatably supported on a shared support (20) which is detachably fastened to the spinning machine via fastening means (46), and the revolving compaction element (17), which is provided with openings (0), has at least one drive element (28) which forms a drive connection with the bottom roller (7) of the pair of delivery rollers (7, 8) via a weighting device (55, 58) when the compaction element is transferred from an idle position to an operating position, the support having a suction channel (SK) for the suction air of the compaction element (17), and a first end (S1) of the suction channel (SK) being connected to the compaction element, and a second end (S2) of the suction channel (SK) ending in the area of the support (20), by means of which the support in its installed position is fastened to the spinning machine.

### Claim at position 2

2-18. (canceled)