GB1066097A - Drive for spindles of spinning and twisting machines - Google Patents

Abstract

In a driving-arrangement for spinning &c. spindles, to permit limited tilting of the spindle as the cop grows, the spindle is through pressure-exerting means yieldingly supported by two rollers arranged on opposite sides of the spindle, while a belt passing between the spindle and at least one of the rollers is drivingly-connected to the spindle. In Figs. 3 and 4 (not shown), each spindle comprises a hollow sleeve lying slightly forward of a pair of rollers (16, 17) so arranged that the spindle cannot pass between them. The spindle is pulled towards the rollers by an endless single or double tension belt (31) which passes around a wharve rotatably mounted on the spindle and which also engages similarly an adjacent spindle and pulls it towards its pair of rollers. On each side of the spindle, a run of an endless belt (27) overlies the corresponding run of belt (31) and passes between the spindle and the corresponding roller; the belts are deflected, to an extent variable by tiltably or displaceably mounting the rollers, so that the belt rotates the rollers, which rotation is imparted to the spindle by upper and lower friction surfaces (28) engaging corresponding surfaces on the spindle. Between adjacent spindles is a slide (47) moveable one way or the other for rollers (53) to move one of the spindles out of engagement with the rollers (16, 17) into engagement with a brake (54). The roller may comprise a body on a pin (24), Fig. 1, not shown, running in bearings in a tube (18) secured to the spindle rail, the tube housing a cup for lubricant into which the pin depends. In Fig. 2, (not shown), the arrangement is ment is adapted to the case of a spindle comprising a sleeve (4) rotatably hung on a member carried by a shank (2) passing through the spindle-rail and secured to a rail (12) which can be raised or lowered to fit sleeves of different lengths, the shank being held where desired by a friction-pad (14) on a fixed member. The part driven through the rollers is a tube (1), the upper part of which fits into a conical extension of the sleeve which is downwardly urged by a spring (8) to force clutching-members (11) to engage the driven tube. The drive is interrupted by lifting the extension so that the clutch parts move outwards centrifugally. In Fig. 2, (not shown), the arrangement is adapted to the case where the sleeve (4) can be fitted from below the rail through a driven hollow tube (32). The sleeve is in two interengaging parts (4, 33), which respectively engage the driven tube by spring-rings (35, 34). Tension belts (40) on either side of the rail pull the tube to engage rollers (16, 17) journalled on the rail, each with a surface (26) for the driving belt (27) and a surface engaging the tube, above and below the rail. Above the rail, the surface is a ring (38) engaging a groove in the tube; below the rail, it has a friction surface (37) engaging the tube.