To provide a twin-wire former capable of stably preserving paper quality by changing wire wrapping angle according to the paper making speed without subjecting to a large design change.
This twin-wire former installing wire 3 and 4 forming a space for paper making, spraying paper stuff liquid 2 from a head box 1 to the converging part of the wires 3 and 4, clamping the paper stuff liquid 2 by the wires 3 and 4 and dehydrating while transporting, installs a suction roll 16 bridged with the wire 3 and aspirating/dehydrating the paper stuff liquid 2, a breast roll 17 bridged with the wire 4 set face to the suction roll 16, dehydrating machines 5, 6, and 7 dehydrating the paper stuff liquid 2 in the paper making space, a suction couch roll 8 suction dehydrating the paper stuff liquid 2 in the paper making space, a moving means 21 for the suction roll and a wire wrapping angle changing means 20 changing a wire wrap angle θ of the suction roll 16 by moving the suction roll 16 by the suction roll moving means 21.
SUEDA MINORU
MATSUMOTO MASANOBU
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