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摘要

A loading device 10 for a wire 40, 50 in a paper machine, by means of which loading device a mechanical load is directed at the wire 40, 50 of the paper machine. With this load a pressure pulse is directed at the fibre layer that is supported by the wires or is present between the wires 40, 50, or at the web W. The pressure pulse promotes drainage from the web W, improves the formation of the web W and/or controls transverse profiles of various characteristics of the web W, such as drainage, distribution of the filler, formation and/or retention. The loading device 10A; 10B; 10C; 10D; 10E comprises a disc-shaped spring leaf 11, the face of which is arranged essentially in the direction of the run of the wire or wires 40; 50 so as to drag against the inner surface of the wire loop 40; 50 in order to produce a pressure pulse. The spring leaf is fixed outside the drag area at the frame part 12 of the load device. By means of the said frame part 12 and/or the loading devices 16, 17, 20 a load force is generated, which produces the said pressure pulse and bends the said spring leaf 11 in the direction of the machine. IMAGE