Direct traverse device

Abstract

A traverse device ( 1 ), suitable for particularly winding yarns, comprising a longitudinally extending stator having a ferromagnetic core material ( 4 ) provided with coil members ( 2, 3 ); a moving element ( 6 ) having permanent magnets ( 8 ) forced by the coil members and moved along the longitudinal direction of the stator. The traverse device of the invention is comprises a moving element co-axially provided outside the coil members which surround the ferromagnetic core material; each coil member comprising a number of winding units ( 10 ) in a manner that the current to flow in clockwise direction while in the next winding of the same phase to flow in counterclockwise; and winding units of each coil member being spaced apart from one another allowing the winding units of the other coil member can be placed within respective spaces.

1 . A traverse device which may be suitably used on yarn winding machines, or other machines in which traverse mechanisms are useful, comprising a longitudinally extending stator having a ferromagnetic core material ( 4 ) provided with coil members ( 2 , 3 ); a moving element ( 6 ) having permanent magnets ( 8 ) forced by the coil members ( 2 , 3 ) and moved along the longitudinal direction of the stator, characterized in that the moving element ( 6 ) is co-axially and outwardly or radially outwardly mounted on the coil members ( 2 , 3 ) which surround the ferromagnetic core material ( 4 ); each coil member ( 2 , 3 ) comprising a number of winding units ( 10 ) in a manner that the current to flow in clockwise direction while in the next winding of the same phase to flow in counterclockwise; and winding units ( 10 ) of each coil member ( 2 , 3 ) being spaced apart from one another allowing the winding units of the other coil member can be placed within respective spaces. 
     
     
         2 . A traverse device as in  claim 1 , characterized in that the core material ( 4 ), the coil members ( 2 , 3 ) and the moving element ( 6 ) are of cylindrical form or a polygonal form, in particular rectangular/square parallelepiped form. 
     
     
         3 . A traverse device as in  claim 1 , characterized in that the moving element ( 6 ) having a hollow cylindrical or polygonal sectional form essentially comprises a sliding bearing element ( 7 ), carrying a number of permanent magnets ( 8 ) which are positioned one next to another, and a bushing ( 9 ) covering the magnets ( 8 ). 
     
     
         4 . A traverse device as in  claim 1 , characterized in that a first coil member is energized in phase A ( 11 ) and a second coil member is energized in phase B ( 12 ) such a manner that the current flows alternating with 90 degrees of phase shift. 
     
     
         5 . A traverse device as in  claim 1 , characterized in that when the moving element ( 6 ) is in cylindrical form, each magnet ( 8 ), having ring or arc segment-shape, is oppositely poled in radial direction, and radial polarity of each magnet ( 8 ) is reversed with respect to the next one; and when the moving element ( 6 ) is in a polygonal form, each magnet ( 8 ) is oppositely poled from inwards to outwards, and the polarity is reversed with respect to the next one along the axis. 
     
     
         6 . A traverse device which may be suitably used on yarn winding machines, or other machines in which traverse mechanisms are useful, comprising two longitudinally extending stators having a ferromagnetic core material ( 4 ) provided with coil members ( 23 ); a moving element ( 6 ) having permanent magnets ( 8 ) forced by the [deg.] coil members ( 2 , 3 ) and moved along the longitudinal direction of the stator, characterized in that the moving element ( 6 ) is provided between the two stators having the coil members ( 2 , 3 ) which surround the ferromagnetic core material ( 4 ); each coil member ( 2 , 3 ) comprising a number of winding units ( 10 ) in a manner that the current to flow in clockwise direction while in the next winding of the same phase to flow in counterclockwise; and winding units ( 10 ) of each coil member ( 2 , 3 ) being spaced apart from one another allowing the winding units of the other coil member can be placed within respective spaces. 
     
     
         7 . A traverse device which may be suitably used on yarn winding machines, or other machines in which traverse mechanisms are useful, comprising two longitudinally extending stators having a ferromagnetic core material ( 4 ) provided with coil members ( 2 , 3 ); a moving element ( 6 ) having permanent magnets ( 8 ) forced by the coil members ( 2 , 3 ) and moved along the longitudinal direction of the stator, characterized in that the moving element ( 6 ) is provided between the two stators having the coil members ( 2 , 3 ) provided on the ferromagnetic core material ( 4 ) in a manner that windings of coil members ( 2 , 3 ) face essentially to the moving element ( 6 ); each coil member ( 2 , 3 ) comprising a number of winding units ( 10 ) in a manner that the current to flow in clockwise direction while in the next winding of the same phase to flow in counterclockwise; and winding units ( 0 ) of each coil member being spaced apart from one another allowing the winding units of the other coil member, can be placed within respective spaces; and the core materials ( 4 ) being optionally mounted or connected to each other by a ferromagnetic base ( 16 ), which together define a C-like shape. 
     
     
         8 . A traverse device as in  claim 6 , characterized in that the core material ( 4 ), the coil members ( 2 , 3 ) are of a polygonal form, in particular rectangular/square parallelepiped form. 
     
     
         9 . A traverse device as in  claim 6 , characterized in that a first coil member of the first stator is energized for phase A ( 11 ) and a second coil member of the first stator is energized for phase B ( 12 ), and a first coil member of the second stator is energized for phase A ( 11 ) and a second coil member of the second stator is energized for phase B ( 12 ) such a manner that the current flows alternating with 90 degrees of phase shift. 
     
     
         10 . A traverse device as in  claim 6 , characterized in that each magnet ( 8 ) of the moving element ( 6 ) is oppositely poled from inwards to outwards, and the polarity is reversed with respect to the next one along the axis, in that the number of magnets ( 8 ) can be one with single or multiple polarities on each side, or more with single or multiple polarities on each side. 
     
     
         11 . A traverse device as in  claim 1 , characterized in that magnets ( 39 ) are provided on the moving element ( 6 ) and oppositely poled magnets ( 38 ) are provided on the traverse device ( 1 ) at the required reversing points of the moving element ( 6 ). 
     
     
         12 . A traverse device as in  claim 1 , characterized in that magnets ( 44 ) are provided on the ferromagnetic core ( 4 ) provided on the traverse device ( 1 ) at the required reversing points of the moving element ( 6 ). 
     
     
         13 . A traverse device as in  claim 1 , characterized in that spring members ( 37 ) are provided on the traverse device ( 1 ), at the required reversing points of the moving element ( 6 ). 
     
     
         14 . A traverse device as in  claim 13 , characterized in that the spring members ( 37 ) are selected from the group consisting of mechanical springs; suitably shaped rubber materials; pneumatic pistons; magnets ( 38 , 39 ); or a combination thereof. 
     
     
         15 . A traverse device as in  claim 1 , characterized in that the coil members ( 2 , 3 ), when wound, comprise a form having multiple stripes of a thin foil conductors ( 41 ) positioned between electrically insulating backing film layers ( 42 ). 
     
     
         16 . A traverse device as in  claim 1 , characterized in that a controlled energy supplying arrangement is provided for supplying electrical current to a predetermined coil at a time, comprising high side unidirectional electronic switching elements (MH 1 , MH 2 , MH 3 , MH 4 , MH 5  . . . ) being driven by a high side driving circuit ( 19 ), are placed between the series connections of individual winding members (W 1 , W 2 , W 3 , W 4 , W 5  . . . ) and the power line connected to the positive terminal of adjustable unipolar current controller ( 18 ); and low side unidirectional electronic switching elements (ML 1 , ML 2 , ML 3 , ML 4 , ML 5 , . . . ) being driven by a low side driving circuit ( 20 ), are placed between the series connections of individual winding members (W 1 , W 2 , W 3 , W 4 , W 5  . . . ) and the power line connected to the negative terminal of adjustable unipolar current controller ( 18 ); while the adjustable unipolar current controller ( 18 ); high side driving circuit ( 19 ) low side driving circuit ( 20 ), are controlled by controller ( 17 ). 
     
     
         17 . A traverse device as in  claim 1 , characterized in that a controlled energy supplying arrangement is provided for supplying electrical current to a predetermined coil at a time, comprising bidirectional electronic switching elements (TS 1 , TS 2 , TS 3 , TS 4 , TS 5 , . . . ) being driven by circuits ( 23 , 24 ) are placed between the series connections of individual winding members (W 1 , W 2 , W 3 , W 4 , W 5  . . . ) and the power lines connected to the terminals adjustable bipolar current controller ( 22 ) alternately as one of them is connected to first line, the second one is connected to second line and the next one is connected to first line again; and the bidirectional electronic switching elements (TS 1 , TS 2 , TS 3 , TS 4 , TS 5 , . . . ) being driven by circuits ( 23 ,  24 ) while the adjustable bipolar current controller ( 22 ) and bidirectional electronic switching elements driving circuits ( 23 , 24 ) are controlled by controller ( 17 ). 
     
     
         18 . A traverse device as in  claim 1 , characterized in that a controlled energy supplying arrangement is provided for supplying electrical current to a predetermined coil at a time, comprising bidirectional electronic switching elements (TD 1 , TD 2 , TD 3 , TD 4 , TD 5 , . . . ) being driven by circuits ( 23 , 24 ) are placed between the series connections of individual winding members (W 1 , W 2 , W 3 , W 4 , W 5  . . . ) and the power lines connected to the terminals adjustable bipolar current controller ( 22 ) alternately as two of them are connected to first line, the adjacent two of them are connected to second line and the two of them are connected to first line again; and the bidirectional electronic switching elements (TD 1 , TD 2 , TD 3 , T 04 , TD 5  . . . ) being driven by circuits ( 23 ,  24 ) while the adjustable bipolar current controller ( 22 ) and bidirectional electronic switching elements driving circuits ( 23 , 24 ) are controlled by controller ( 17 ). 
     
     
         19 . A traverse device as in  claim 1 , characterized in that a position feedback unit is provided, comprising an electronic board ( 26 ) having hall effect sensors ( 25 ) located inside the coil members ( 2 , 3 ) along the axis; the hall effect sensors ( 25 ) sensing the position of the moving member ( 6 ) having the magnets ( 8 ) produce signals for a controller. 
     
     
         20 . A traverse device as in  claim 1 , characterized in that a position feedback unit is provided, comprising an electronic board ( 26 ) having hall effect sensors ( 25 ) located inside the wall member ( 5 ) and outside the coil members ( 2 , 3 ) along the axis; the hail effect sensors ( 25 ) sensing the position of the moving member ( 6 ) having the magnets ( 8 ) or having additional position sensing magnets ( 28 ) attached to moving element ( 6 ) produce signals for a controller. 
     
     
         21 . A traverse device as in  claim 1 , characterized in that a position feedback unit is provided, comprising an electronic board ( 26 ) having hall effect sensors ( 25 ) located outside the wall member ( 5 ) along the axis; the hall effect sensors ( 25 ) sensing the position of the moving member ( 6 ) having the magnets ( 8 ) or having additional position sensing magnets ( 28 ) attached to moving element ( 6 ) produce signals for a controller. 
     
     
         22 . A traverse device as in  claim 1 , characterized in that a position feedback unit is provided, comprising an electronic board ( 26 ) having light emitting diodes ( 31 ) and another electronic board ( 30 ) having light sensing elements ( 32 ) located outside the wall member ( 5 ) as face by face along the axis; and a light interrupter ( 33 ) having sequential slits attached to moving element ( 6 ) providing alternating interruption of light as the function of an encoder to sense the position of the moving member ( 6 ) to produce signals for the controller.