Fastening system for a compaction module on a spinning machine

Patent metadata

Field	Value
Publication number	US-9714477-B2
Application number	US-201314402938-A
Country	US
Kind code	B2
Filing date	May 17, 2013
Priority date	May 21, 2012
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

A fastening mechanism is provided to detachably fasten and position a compaction module on a drafting unit of a spinning machine, wherein the compaction module has a carrier, which is provided with at least one suction channel that is connected to suction inserts of compaction elements that are movably mounted on the carrier. A coupling device using the fastening mechanism. In order to ensure simple and positionally accurate attachment of a compaction module, the fastening mechanism is composed of at least one clamping element that has retaining elements for fixed and positioned fastening on the spinning machine and is provided with a first receiving slot, which is open on one side and has a retaining section, by means of which a retaining element fastened on the carrier can form a positive-fitting clamped connection.

First claim

The invention claimed is:

1. A fastening mechanism that detachably fastens and positions a compaction module on a drafting unit of a spinning machine, wherein the compaction module has a carrier with at least one suction channel that is connected to suction inserts of compaction elements movably mounted on the carrier, the fastening mechanism comprising:
two clamping elements that are fastened spaced apart from one another on the spinning machine by retaining members; and
each clamping element comprising a first receiving slot that is open on one side and has a retaining section by means of which a retaining element that is fastened on the carrier engages and forms a positive-fitting clamped connection with the clamping element; and
wherein each retaining member has a U-shaped opening defined by the clamping element for receipt of a component of the spinning machine, and the first receiving slot is oriented parallel to the U-shaped opening.

2. A fastening mechanism that detachably fastens and positions a compaction module on a drafting unit of a spinning machine, wherein the compaction module has a carrier with at least one suction channel that is connected to suction inserts of compaction elements movably mounted on the carrier, the fastening mechanism comprising:
two clamping elements that are fastened spaced apart from one another on the spinning machine by retaining members;
each clamping element comprising a first receiving slot that is open on one side and has a retaining section by means of which a retaining element that is fastened on the carrier engages and forms a positive-fitting clamped connection with the clamping element; and
wherein the positive-fitting connection allows a pivot movement of the carrier in a pivot plane that extends parallel to opposing planes in which the receiving slots of the clamping elements lie, wherein each respective clamping element comprises a stop that limits the pivot movement.

3. The fastening mechanism according to claim 1 , wherein each clamping element further comprises a second receiving slot that is open on one side and has a retaining section that forms a positive-fitting connection to a retaining element of a tube element.

4. A fastening mechanism that detachably fastens and positions a compaction module on a drafting unit of a spinning machine, wherein the compaction module has a carrier with at least one suction channel that is connected to suction inserts of compaction elements movably mounted on the carrier, the fastening mechanism comprising:
two clamping elements that are fastened spaced apart from one another on the spinning machine by retaining members;
each clamping element comprising a first receiving slot that is open on one side and has a retaining section by means of which a retaining element that is fastened on the carrier engages and forms a positive-fitting clamped connection with the clamping element;
wherein each clamping element further comprises a second receiving slot that is pen on one side and has a retaining section that forms a positive-fitting connection to a retaining element of a tube element; and
wherein a longitudinal axis of the first receiving slot intersects a longitudinal axis of the second receiving slot at an angle (c) on each clamping element.

5. The fastening mechanism according to claim 3 , wherein each clamping element further comprises a pocket-shaped receptacle that is open on one side and configured to fix a web fastened on the tube element.

6. A fastening mechanism that detachably fastens and positions a compaction module on a drafting unit of a spinning machine, wherein the compaction module has a carrier with at least one suction channel that is connected to suction inserts of compaction elements movably mounted on the carrier, the fastening mechanism comprising:
two clamping elements that are fastened spaced apart from one another on the spinning machine by retaining members;
each clamping element comprising a first receiving slot that is open on one side and has a retaining section by means of which a retaining element that is fastened on the carrier engages and forms a positive-fitting clamped connection with the clamping element;
wherein each clamping element further comprises a second receiving slot that is open on one side and has a retaining section that forms a positive-fitting connection to a retaining element of a tube element; and
wherein the retaining member of the respective clamping elements are formed by a U-shaped base section attached below the first receiving slot.

7. The fastening mechanism according to claim 6 , wherein the U-shaped base section comprises limbs that have an opening for receipt of a fixing element.

8. A coupling device for connecting a suction channel integrated in a carrier of a compaction module on a drafting unit of a spinning machine to a suction tube that is connected to a central suction channel, comprising:
a fastening mechanism, the fastening mechanism further comprising
two clamping elements that are fastened spaced apart from one another on the spinning machine by retaining members; and
each clamping element comprising a first receiving slot that is open on one side and has a retaining section by means of which a retaining element that is fastened on the carrier engages and forms a positive-fitting clamped connection with the clamping element; and
a second receiving slot that is open on one side and has a retaining section that forms a positive-fitting connection to a retaining element of a tubular element;

an end ring attached on an end of the suction channel and located in a region of the fastening mechanism, the end ring projecting over the suction channel in a longitudinal direction and having an annular outer surface that extends conically inward and is directed away from the suction channel;
wherein a conically outwardly extending annular inner surface of the tubular element rests on the conically inward annular outer surface of the end ring; and
wherein the suction tube sealingly rests with an inner surface thereof on an outer circumference of a free end of the tubular element.

9. The coupling device according to claim 8 , wherein the conically extending outer surface of the end ring has an arched curvature where the outer surface rests on the conically extending inner surface of the tubular element.

10. The coupling device according to claim 8 , wherein the outer circumference of the tubular element on which the suction tube sealingly rests is provided with a helically extending elevation.

11. The coupling device according to claim 8 , further comprising an annular elastic sealing element on the outer circumference of the tubular element that extends across a region of the conically outwardly extending annular inner surface of the tubular element, the sealing element projecting above the tubular element and sealingly resting on the conically inwardly extending annular outer surface of the end ring.

12. The coupling device according to claim 8 , wherein the clamping elements are fastened on a shaft that is installed in a longitudinal direction of the spinning machine.

13. The coupling device according to claim 12 , wherein the retaining members of the respective clamping elements are formed by a U-shaped base section attached below the first receiving slot, and wherein the shaft is provided with through-openings through which fixing elements protrude into openings of limbs of the U-shaped base section to fasten the clamping elements.

14. The coupling device according to claim 13 , wherein the opening of one of the two limbs is provided with a thread, and the fixing element is

Assignees

• Rieter Ag Maschf

Inventors

• Nägeli Robert
• Malina Ludek
• Schneider Gabriel

Classifications

• D01H5/66

  Suction devices {exclusively; (D01H5/625 and D01H5/645 take precedence; in cooperation with thread breakage detecting means D01H13/1691)} · CPC title

• D01H5/72 Primary

  Fibre-condensing guides · CPC title