B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
B28B 1/52 (2006.01) B21F 11/00 (2006.01) B21F 23/00 (2006.01) B21F 45/00 (2006.01) B28B 23/02 (2006.01) E04C 5/01 (2006.01)
Patent
CA 2173501
A method and a device for producing reinforcement fi- bres and adding them to con- crete stuff. The fibres are pro- duced from a continuous wire (6) by means of wire pieces, which form the fibres, being detached consecutively from the wire and then, in turn, by virtue of their kinetic energy, being flung into a mixer in which the concrete stuff is undergoing mixing. A device which is suitable for implement- ing the method comprises a wire spool which is mounted on a bal- ance and from which the wire (6) runs to a wire-impelling unit (4), after which a fibre-detaching unit (8) is arranged which engages with the wire which has been fed forward by the impelling unit and consecutively detaches wire pieces from the wire. The fibres which have thus been detached pass through a nozzle tube (46) which is arranged downstream of the detaching unit (8) and which guides the fibres into a subse- quent mixer which contains con- crete stuff. The wire-impelling unit (4) and the fibre detaching unit (8) each comprise a driven wheel (10 and 28, respectively), which engages with the Wire, and a guide roller (12 and 30, respectively) which interacts with this wheel.
Un procédé et un dispositif permettent de produire des fibres de renforcement et de les ajouter à du béton. On produit ces fibres à partir d'un fil (6) continu, sous forme de tronçons de fil qu'on détache de manière consécutive de ce fil, ces fibres étant alors projetées par leur énergie cinétique dans une bétonnière où est en cours le mélange du béton. Un dispositif, qui permet d'appliquer ce procédé, comprend une bobine de fil, montée sur une balance et dont le fil (6) se déroule vers une distributrice (4). Une séparatrice (8) de fibres entre ensutie en prise avec le fil fourni par cette distributrice et détache consécutivement des tronçons de ce fil. Les fibres ainsi détachées traversent une buse (46) disposée en aval de cette séparatrice (8) pour les guider alors vers une bétonnière qui contient le béton. La distributrice (4) et la séparatrice (8) de fibres comprennent chacune une roue entraînée (10 et 28 respectivement), qui entre en prise avec le fil, et un galet-guide (12 et 30 respectivement) qui coopère avec cette roue.
Nordin Arne
Suomela Jukka
Confiber Ab
Fetherstonhaugh & Co.
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