Roving frame with a device enabling full roving bobbins to be replaced automatically by empty roving sleeves

A roving machine with a device for the automatic replacement of full roving bobbins with empty roving sleeves which are mounted on bobbin carriers arranged in two longitudinal rows on a spindle rail, wherein a respective flyer is rotatable above each bobbin carrier on a respective flyer rail, the device comprising:

• a plurality of guide rails extending substantially transversely to a longitudinal dimension of the machine and of the longitudinal rows and each of which is juxtaposible with a respective bobbin carrier of each of the two longitudinal rows;
• and
• hangers for movement within said guide rails for suspending full roving bobbins and empty roving sleeves and forming respective suspension carriage trains respectively displaceable in said guide rails into a region of the bobbin rail and a replacement region, the guide rails being movable for bobbin replacement in a horizontal plane below lower edges of the flyers.

A roving machine with a device for the automatic replacement of full roving bobbins by empty roving sleeves which are mounted on bobbin carriers arranged in two longitudinal rows on a spindle rail, wherein a respective flyer is rotatable above each bobbin carrier on a respective flyer rail, the device comprising:

• a plurality of guide rails extending substantially transversely to a longitudinal dimension of the machine and of the longitudinal rows and each of which is juxtaposible with a respective bobbin carrier of each of the two longitudinal rows;
• hangers in said guide rails for suspending full roving bobbins and empty roving sleeves and forming respective suspension carriage trains respectively displaceable in said guide rails into a region of the bobbin rail and a replacement region, the guide rails being movable for bobbin replacement in a horizontal plane below lower edges of the flyers, the guide rails upon bobbin replacement, being laterally oriented with respect to vertical planes each of which contains the two bobbin carriers with which the guide rails are respectively juxtaposed, the bobbin rail being laterally shiftable so that the vertical plane containing each two bobbin carriers each coincide with respective vertical planes of the respective guide rail.