US2023257915A1PendingUtilityA1

Open-end spinning device for an open-end spinning machine and open-end spinning machine

Assignee: RIETER AG MASCHFPriority: Feb 17, 2022Filed: Feb 15, 2023Published: Aug 17, 2023
Est. expiryFeb 17, 2042(~15.6 yrs left)· nominal 20-yr term from priority
D01H 4/08D01H 4/10D01H 4/14
53
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Claims

Abstract

An open-end spinning device for an open-end spinning machine includes an individually drivable spinning rotor having a rotor cup accommodated in a rotor housing. An individual drive for the spinning rotor arranged in a drive housing. A receptacle for a cover element that closes the rotor housing during spinning operations is provided. The rotor housing defines a central support part fixable to a machine frame of the open-end spinning machine. The rotor housing is formed as one piece with the drive housing and the receptacle for the cover element.

Claims

exact text as granted — not AI-modified
1 - 15 . (canceled) 
     
     
         16 . An open-end spinning device for an open-end spinning machine, comprising:
 an individually drivable spinning rotor having a rotor cup accommodated in a rotor housing;   an individual drive for the spinning rotor arranged in a drive housing;   at least one receptacle for a cover element that closes the rotor housing during spinning operations;   the rotor housing defining a central support part fixable on a machine frame of the open-end spinning machine; and   the rotor housing formed as one piece with the drive housing and the at least one receptacle for the cover element.   
     
     
         17 . The open-end spinning device of  claim 16 , wherein the rotor housing is formed as a cast part such that the at least one receptacle for the cover element is integrally cast onto the rotor housing. 
     
     
         18 . The open-end spinning device of  claim 16 , wherein the rotor housing comprises fastening devices integrally formed thereon to fix the rotor housing to the machine frame. 
     
     
         19 . The open-end spinning device of  claim 16 , wherein the rotor housing comprises a cast-on frame that defines the at least one receptacle for the cover element. 
     
     
         20 . The open-end spinning device of  claim 16 , wherein the drive housing comprises at least one bearing point of a magnetic bearing assembly for the spinning rotor. 
     
     
         21 . The open-end spinning device of  claim 16 , wherein the at least one receptacle for the cover element defines a swivel axis, and further comprising the cover element accommodated in the at least one receptacle and swivelable about the swivel axis. 
     
     
         22 . The open-end spinning device of  claim 21 , wherein the cover element comprises an opening roller housing integrally formed on the cover element. 
     
     
         23 . The open-end spinning device of  claim 22 , wherein the cover element is formed as a cast part, wherein the opening roller housing is integrally cast onto the cover element. 
     
     
         24 . The open-end spinning device of  claim 21 , wherein the rotor housing comprises a stop for the cover element to position the cover element in the axial direction of the spinning rotor. 
     
     
         25 . The open-end spinning device of  claim 24 , wherein the stop is adjustable. 
     
     
         26 . The open-end spinning device of  claim 24 , wherein the stop is arranged in an area of the rotor housing facing away from the at least one receptacle for the cover element. 
     
     
         27 . The open-end spinning device of  claim 21 , wherein the rotor housing comprises a positioning device that locates the cover element in an axial direction of the swivel axis. 
     
     
         28 . The open-end spinning device of  claim 27 , wherein the positioning device is cast directly onto the rotor housing. 
     
     
         29 . The open-end spinning device of  claim 28 , wherein the positioning device comprises a plastic coating. 
     
     
         30 . An open-end spinning machine, comprising:
 a plurality of adjacently arranged workstations; and   wherein each of the workstation comprises the open-end spinning device of  claim 16 .

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