Balloon control ring for a textile machine
View Patent ↗A balloon control ring for a textile machine for limiting a circulating yarn balloon, wherein the balloon control ring comprising a metallic hollow cylinder with a wear-resistant surface, is characterised in that the hollow cylinder ( 2, 23, 37 ) is formed from a sheet metal strip, the hollow cylinder ( 2, 23, 37 ) is held by the end portions ( 3, 4; 14, 15; 38, 39 ) of the sheet metal strip, and an edge strip ( 8, 9; 10, 11; 55, 56 ) is folded round at the two edges of the hollow cylinder ( 2, 23, 37 ), with the sheet metal thickness of the sheet metal strip being at most 0.6 mm.
1. Balloon control ring for a textile machine for limiting a circulating yarn balloon, the balloon control ring comprising a metallic hollow cylinder with a wear-resistant surface, characterised in that the hollow cylinder ( 2 , 23 , 37 ) is formed from a sheet metal strip, in that the hollow cylinder ( 2 , 23 , 37 ) is held by the end portions ( 3 , 4 ; 14 , 15 ; 38 , 39 ) of the sheet metal strip, in that an edge strip ( 8 , 9 ; 10 , 11 ; 55 , 56 ) is folded round at the two edges of the hollow cylinder ( 2 , 23 , 37 ) in each case and that the sheet metal thickness of the sheet metal strip is at most 0.6 mm.
2. Balloon control ring according to claim 1 , characterised in that the folded round edge strip ( 8 , 9 ; 10 , 11 ; 55 , 56 ) has a width b of between 5 mm and 10 mm.
3. Balloon control ring according to claim 1 , characterised in that the sheet metal thickness is between 0.3 mm and 0.6 mm.
4. Balloon control ring according to claim 1 , characterised in that an end portion ( 3 , 4 ; 14 , 15 ; 38 , 39 ) is bent round outwardly at the two ends of the sheet metal strip in each case and the two end portions ( 3 , 4 ; 14 , 15 ; 38 , 39 ) are pressed against one another.
5. Balloon control ring according to claim 4 , characterised in that the two end portions ( 3 , 4 ; 14 , 15 ; 38 , 39 ) are bent round outwardly at right angles in each case.
6. Balloon control ring according to claim 4 , characterised in that the end portions ( 3 , 4 ; 14 , 15 ; 38 , 39 ) contact a frame wall ( 7 , 32 ) of the textile machine and an electrically conductive connection is produced by the contact.
7. Balloon control ring according to claim 1 , characterised in that the balloon control ring ( 12 , 35 ) is held by means of a holding element ( 13 , 36 ), which presses the end portions ( 14 , 15 ; 38 , 39 ) against one another.
8. Balloon control ring according to claim 7 , characterised in that the holding element ( 13 , 36 ) comprises level first contact faces ( 21 , 22 ; 46 ), with which it abuts the end portions ( 14 , 15 ; 38 , 39 ) and presses them against one another, in that the holding element ( 13 , 36 ) comprises at least one concave second contact face ( 24 , 25 ; 45 ), with which it abuts the outer face of the hollow cylinder ( 23 , 37 ) and in that the balloon control ring ( 12 , 35 ) is fixed by means of screw connections ( 20 ; 43 , 44 ), which cross the holding element ( 13 , 36 ) and the end portions ( 14 , 15 ; 38 , 39 ).
9. Balloon control ring according to claim 7 , characterised in that the free ends ( 47 , 48 ) of the end portions ( 38 , 39 ) are turned over in such a way that they engage behind the holding element ( 36 ).
10. Balloon control ring according to claim 7 , characterised in that the holding element ( 13 , 36 ) has positioning cams ( 28 , 29 ; 51 , 52 ) and holding magnets ( 33 , 34 ; 53 , 54 ), with which it can be fixed on a frame wall ( 32 ) of the textile machine.
11. Balloon control ring according to claim 7 , characterised in that the holding element ( 13 , 36 ) is an injection moulding made of plastics material.
12. Balloon control ring according to claim 1 , characterised in that the hollow cylinder ( 2 , 23 , 37 ) is made of stainless nickel chromium steel.