Drum insert for a device for producing shaped pads of fibrous ma

Details Drum insert for a device for producing shaped pads of fibrous ma Drum insert for a device for producing shaped pads of fibrous ma

1992-05-28

1994-04-12

Nguyen, Khanh

Plastic article or earthenware shaping or treating: apparatus

Air felting type shaping means

425183, 425193, 425220, 425388, B29C 3330

Patent

active

053021002

ABSTRACT:
The present invention relates to the insert for the drum of a device for producing shaped pads from fibrous material. These inserts are attached to a disk of the drum and are designed in accordance with the shape and size of the pads to be produced. To simplify the retrofittability of the device or the drum for the production of pads of another size or shape and the number of drum inserts which must be kept in stock, it is provided that the drum insert consists of a base body, which, in turn, consists of a supporting sheet having several openings and several laminar sheets disposed in the direction of rotation of the drum and at right angles thereto. A forming insert is also provided at the outer side of the drum insert, which consists of a sieve and a sieve frame receiving it and that forming webs are provided in the drum insert which are located vertically above the laminar sheets extending transversely to the direction of rotation of the drum, whose shape is adapted to the shape of the sieve and thus to the shape of the pads to be produced in such fashion that the sieve retains its shape, even if it is loaded by the negative pressure.

REFERENCES:
patent: 3846871 (1974-11-01), Kolbach
patent: 3973291 (1976-08-01), Kolbach
patent: 4592708 (1986-06-01), Feist et al.
patent: 4674966 (1987-06-01), Johnson et al.
patent: 4761258 (1988-08-01), Enloe
patent: 4995141 (1991-02-01), Gould

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