Dieffenbacher Gmbh Maschinen-und Anlagenbau

Other

Fritz Schneider Flakeboard Company Limited

Flakeboard Company Limited

Dieffenbacher Gmbh + Co. Kg

Fritz Schneider

Schneider, Fritz

Flakeboard Technologies Company Limited

The invention relates to a method and a device () to prevent contamination on a wall inner side () of a transport device () for fibers () which are designated for the production of fiberboards and which after wetting with glue in a dry-gluing unit () are transported by the transport device to a further processing unit () by means of transport air. By returning dried material (), which has been acquired during the course of further processing of the glued fibers and no longer has any cold-sticky glue, into the flow () of fibers (), which still comprise cold-sticky glue, in the transport device, the said contamination is prevented in an effective and inexpensive manner.

Method and device to prevent contamination of a transport device by freshly glued fibers

Dried fibers which are designated for the production of fiber boards are supplied to a fiber roller () from a metering device through a feed chute () which is subjected to negative pressure, which fiber roller is provided on its surface with a plurality of pins () and rotates in such a manner that the fibers () are deflected by the pins (), are directed along a chute section () defined by means of a partial section () of the periphery of the fiber roller () and an opposite-lying wall () and gluing means and said fibers are accelerated to approximately the peripheral speed of the fiber roller () by means of the pins () and an air flow generated by said pins. The fibers () lie against a section of the wall and are glued in the region of or adjacent to one end of the wall section and exit at an outlet orifice () of the chute section (). In the case of an alternative process, after exiting the chute section substantially horizontally the fibers are deflected in an upward or downward direction and are glued in this region by means of at least one spray nozzle.

Process and device for gluing dried fibres designated for the production of fibreboards

Process and device for gluing dried fibers designated for the production of fiberboards

Wood fibers () which are used in the production of fiberboards are supplied from a metering device () through a feed chute () lo a disintegration roller () comprising a plurality of pins () on its surface. The disintegration roller () rotates at high speed, in such a way that the pins () deflect the fibers () hitting the disintegration roller (). The fibers are entrained () by the pins () and fed through a chute section () formed by a partial section () of the roller periphery and a wall () lying opposite the latter, to an outlet orifice () of the chute section (). Either a forming belt () of a forming machine is located beneath the outlet orifice (), or the fibers () pass the outlet orifice () into the air duct of an air fiber sifter. The disintegration roller () disintegrates irregularities in a fiber stream (), e.g. fiber bundles, or drops of condensed water.

Process and device for disintegrating irregularities in flows of wood fibres

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Krefeld, Germany

Fritz Schneider