Patent ID: 11958288
Assignee: LANDA CORPORATION LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A treatment-station for coating a surface of a flexible endless belt mounted over a plurality of guide rollers and driven by a conveyor, the flexible endless belt having first and second pluralities of pre-determined sections, the treatment station being configured for coating the belt surface with a layer of a liquid, the treatment station comprising:
a. an applicator for applying the liquid to the surface of the flexible endless belt;
b. a coating thickness-regulation assembly defining an excess-removal location, the coating thickness-regulation assembly comprising a plurality of blades and being configured so that for at least a part of the time each one of the blades is in an active position for removing excess liquid so as to leave only the desired layer of treatment formulation;
c. a blade-replacement mechanism, associated with the coating thickness-regulation assembly and configured for performing blade-replacement operations to replace a blade in the active position with another blade; and
d. a blade-replacement controller for controlling the blade-replacement mechanism such that at least one of a first condition and a second condition are true, the first and second conditions being defined as follows:
A. according to the first condition, the blade-replacement controller controls the blade-replacement mechanism so as to ensure that the blade-replacement operations are performed only when one of the first plurality of pre-determined sections of the belt traverses the excess-removal location, and
B. according to the second condition, the blade-replacement controller controls the blade-replacement mechanism so as to avoid performing blade-replacement operations when one of the second plurality of pre-determined sections of the belt traverses the excess-removal location.