Defibrator with ribs, beater plate, grate and beater bars

Details Defibrator with ribs, beater plate, grate and beater bars Defibrator with ribs, beater plate, grate and beater bars

1993-10-28

1995-05-16

Crowder, Clifford D.

Textiles: fiber preparation

Assembling

Web forming

28165, 209393, 241190, 264116, 425 831, D01G 2500, B07B 120, D21F 148

Patent

active

054149029

ABSTRACT:
A defibrator which makes it possible to distribute defibrated cellulosic fibers directly onto a forming wire (5) includes ribs (33) extending inside a cylindrical housing (24). The ribs have outer curved surfaces which direct fibers into an area (35) in which beater plates (25). A grate (37) in front of an outlet (30) from the circular housing (24) is arranged at the periphery (35) for the rotation of the beater plates (25). The grate has an interspace between grate bars only allowing fibers to pass through. Accordingly, agglomerates are returned into the working area of the beater plates (25). As the beater plates (25) act several times on agglomerates, it is ensured that only individual fibers pass through the grate (37). Accordingly, fibers are discharged directly onto the forming wire (5) from a discharge opening (2) of the defibrator (1). Preferably, the discharge opening (2) has a width corresponding to the width of the product to be formed on the forming wire (5).

REFERENCES:
patent: 1749954 (1930-03-01), Luebbers
patent: 2421478 (1947-06-01), Blewett
patent: 2432235 (1947-12-01), Grimes
patent: 2635298 (1953-04-01), Lepkowski
patent: 2809400 (1957-10-01), Malenfort
patent: 3984898 (1976-10-01), Matsumura et al.
patent: 4030865 (1977-06-01), Kobayashi
patent: 4264289 (1981-09-01), Day
patent: 4410424 (1983-10-01), Chupka et al.
patent: 5089090 (1992-02-01), Hansen
patent: 5215628 (1993-01-01), Koivuranta et al.
patent: 5316601 (1994-05-01), Hebbard et al.

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