Support element for a compacting device for a drawing system in a spinning machine

Patent metadata

Field	Value
Publication number	US-9695526-B2
Application number	US-201314386162-A
Country	US
Kind code	B2
Filing date	Mar 8, 2013
Priority date	Mar 21, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A support element for a compacting device for two drawing system units of a spinning machine disposed next to each other, includes a suction channel that extends inside the support element and is connected to a suction zone of suction drums via openings of suction inserts. The end faces of the suction drums are open at one end and are disposed coaxially opposite each other at a distance. The suction drums are rotatably mounted on a shaft that is attached to the support element. The support element is formed from two half shells that form the suction channel and are connected to each other by way of attachment means, wherein each of the half shells has an outwardly projecting tubular suction insert. The suction inserts are disposed coaxially opposite each other, and each suction insert has at least one bearing element that is provided with a passage and has at least one brace, by way of which the shaft is held in the radial direction.

First claim

The invention claimed is:

1. A support element for a compacting device for two drawing system units disposed adjacent each other in a spinning machine, wherein each drawing system has a suction drum operably associated with a delivery roller pair, the suction drums coaxially arranged with open facing end faces, each suction drum having a suction zone, the support element comprising:
two half shells connected to each other at respective end faces to define a suction channel;
each of the two half shells comprising an outwardly projecting tubular suction insert, wherein the suction inserts are coaxially adjoined to each other;
the suction channel connected to the suction zone of each suction drum via the suction inserts;
each suction insert comprising a bearing element having a passage and a brace; and
wherein the suction drums are rotatably mounted on a shaft that is supported by the support element, the shaft disposed through the passage in the suction inserts and radially fixed by the brace of the suction inserts.

2. The support element as in claim 1 , wherein the shaft comprises opposite end sections having a smaller diameter than a center region of the shaft, the passage of each suction insert having a step-shaped inner diameter that reduces from a larger diameter section to a smaller diameter section, the center region of the shaft accommodated in the adjoined larger diameter sections of the suction inserts and axially fixed in position by the step-shaped reduction from the larger diameter sections to the smaller diameter sections of the passage.

3. The support element as in claim 1 , wherein each of the two half shells comprises an opening that accommodates an extraction tube, the openings having coaxial centerlines that are parallel to and at a distance from an axis of the shaft, the openings opening into the suction channel.

4. The support element as in claim 3 , wherein each of the two half shells comprises a web that projects from a side of the opening facing the suction drums towards a center of the suction channel.

5. The support element as in claim 4 , wherein the webs are aligned and there is a space between the webs.

6. The support element as in claim 3 , further comprising an extraction tube detachably attached to each of the openings.

7. The support element as in claim 6 , wherein a centerline of each extraction tube extends at an angle relative to the axis of the shaft such that an outer end opening of the extraction tube is closer to the suction drums than an opposite end of the extraction tube connected to the opening in the half shell.

8. The support element as in claim 7 , further comprising a circumferential lock between the extraction tube and the opening in the half shell formed by an engaging elevation and depression between the extraction tube and the opening.

9. The support element as in claim 7 , wherein the outer end opening of the extraction tubes are disposed in respective planes above the suction channel that form an acute angle relative to each other in an extraction direction of the suction channel.

10. The support element as in claim 1 , wherein the bearing element of each of the suction inserts comprises an additional radial brace for the shaft at a location where the two half shells are connected to each other.

11. The support element as in claim 10 , wherein the additional braces form a circumferential form-locked connection with the shaft.

12. The support element as in claim 10 , wherein the shaft comprises a longitudinally extending flattened region at bearing points with the suction drums for air to pass through.

13. The support element as in claim 1 , wherein the two half shells are made of a transparent plastic material.

14. The support element as in claim 1 , wherein
each of the suction inserts comprises a depression on an outer circumference of the suction insert between the end face of the respective half shell and a respective end face of the suction drum that protrudes over the suction insert.

15. The support element as in claim 1 , wherein the two half shells are each provided with flanges at the end faces thereof that define a form-locking clamping connection between the end faces.

Assignees

• Rieter Ag Maschf

Inventors

• Nägeli Robert
• Malina Ludek
• Schneider Gabriel
• Zarecky Radek
• Blazek Petr

Classifications

• D01H5/72 Primary

  Fibre-condensing guides · CPC title

• D01H5/22 Primary

  in which fibres are controlled by rollers only · CPC title

• D01H5/74

  Rollers {or roller bearings} · CPC title