Blade type squeegee device for a stencil printing device

Details Blade type squeegee device for a stencil printing device Blade type squeegee device for a stencil printing device

1993-02-01

1994-06-28

Burr, Edgar S.

Printing

Stenciling

Rotary machines

101120, B41F 1538

Patent

active

053237005

ABSTRACT:
Ink leakage from the trailing edge of the stencil master plate is avoided and a stable ink supply is ensured when using a D-type printing drum including a concentric cylindrical part extending over a major part of an entire circumference of the printing drum and defining an ink permeable region, a non-concentric cylindrical or planar part extending over a minor part of an entire circumference of the printing drum and having a central axial line different from that of the concentric cylindrical part, and an outer circumferential surface on which a stencil master plate is to be mounted without losing the benefit of reducing the displacement of the press roller. A squeegee blade is in contact with the inner circumferential surface of the D-type printing drum, and, in order to maintain the contact between the squeegee blade and the inner circumferential surface of the D-type printing drum over its entire circumference and keep the contact pressure between the squeegee blade and the inner circumferential surface of the D-type printing drum at a prescribed level, a cam is provided for controlling the contact pressure between the squeegee blade and the inner circumferential surface of the D-type printing drum in synchronism with the rotation of the D-type printing drum.

REFERENCES:
patent: 4138943 (1979-02-01), Mitter
patent: 5095816 (1992-03-01), Hasegawa et al.
patent: 5152218 (1992-10-01), Ishikawa

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