An apparatus for feeding one or more fibre threads

Details An apparatus for feeding one or more fibre threads An apparatus for feeding one or more fibre threads

C - Chemistry, Metallurgy

03

B

C03B 37/16 (2006.01) D01G 1/04 (2006.01) D01G 1/10 (2006.01)

Patent

CA 2194965

An apparatus for feeding one or more fibre threads, e.g, of glass, at an adjustable feeding rate. The apparatus comprises at least two synchronously driven feed rollers (11, 12) forming at least one nip for the fibre thread (10) and consisting of a flat motor driven roller (11) and a second co-rotating roller (12). The motor driven roller (11) and/or the co- rotating roller (12) are/is provided with one or more, each in its respective peripheral slot (21) in the cylindrical mantle surface of the roller housed O-ring (22) of an elastic incompressible material, e.g. rubber. The O-ring bears on the peripheral surface of the adjacent roller (12) to transmit the rotary motion by means of friction.

Dispositif d'amenée d'une ou de plusieurs fils de fibres, par exemple, des fibres de verre, à une cadence d'alimentation réglable. Ce dispositif comprend au moins deux rouleaux d'alimentation synchrones (11, 12) possédant au moins un point de contact avec le fil de fibre (10) et composés d'un premier rouleau (11) entraîné par moteur et d'un deuxième rouleau corotatif (12). Le premier rouleau (11) et/ou le rouleau corotatif (12) est/sont pourvu(s) d'un ou de plusieurs joints toriques (22) en matériau élastique incompressible, par exemple, en caoutchouc, logeant chacun dans leur fente périphérique respective (21) située dans la surface cylindrique des rouleaux. Le joint torique repose sur la surface périphérique du rouleau contigu (12) afin de transmettre la rotation par frottement.

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