Belt meandering preventive device of used paper recycling apparatus, paper making device, and used paper recycling apparatus

A paper making device of a used paper recycling apparatus, being a paper making device, applied in a used paper recycling apparatus of furniture size to be installed at the site of origin of used paper, for manufacturing recycled paper from used paper pulp manufactured in a pulp making unit of a preceding process, comprising:

• a paper making net conveyor unit for manufacturing wet paper from a slurry-like pulp suspension mixed of water and used paper pulp sent from the pulp making unit,
• a drying belt conveyor unit for manufacturing recycled paper by drying the wet paper manufactured in this paper making net conveyor unit, and
• a dewatering roll unit for squeezing and dewatering the wet paper at a linkage part of the paper making net conveyor unit and the drying belt conveyor unit,
• wherein the paper making net conveyor unit and the drying belt conveyor unit individually have running belts for processing and conveying the used paper pulp manufactured in the pulp making unit, and also have belt meandering preventive means for preventing meandering of these running belts,
• this belt meandering preventive means has a rolling roller rolling on the running belt of the belt conveyor unit for processing and conveying the used paper pulp sent from the pulp making unit, while applying a tension, roller oscillating means for oscillating this rolling roller in a direction intersecting with the running direction of the running belt, and control means for controlling this roller oscillating means according to the running state of the running belt, and
• this control means controls the roller oscillating means so that the rolling roller may maintain the neutral position so as to be perpendicular to the running direction of the running belt when the running position of the running belt is in an appropriate running range, and so that the rolling roller may be directed to a meandering correcting direction for moving the running position of the running belt into the appropriate running range when the running position of the running belt is out of the appropriate running range.

A used paper recycling apparatus comprising, in an apparatus case of furniture size, a pulp making unit for manufacturing used paper pulp by macerating and beating used paper, a paper making unit for manufacturing recycled paper by making from the used paper pulp manufactured in this pulp making unit, and a control unit for driving and controlling the pulp making unit and the paper making unit in cooperation,

• wherein the paper making unit includes a paper making net conveyor unit for manufacturing wet paper from a slurry-like pulp suspension mixed of water and used paper pulp sent from the pulp making unit, a drying belt conveyor unit for manufacturing recycled paper by drying the wet paper manufactured in this paper making net conveyor unit, and a dewatering roll unit for squeezing and dewatering the wet paper at a linkage part of the paper making net conveyor unit and the drying belt conveyor unit,
• the paper making net conveyor unit and the drying belt conveyor unit individually have running belts for processing and conveying the used paper pulp manufactured in the pulp making unit, and also have belt meandering preventive means for preventing meandering of these running belts,
• this belt meandering preventive means has a rolling roller rolling on the running belt of the belt conveyor unit for processing and conveying the used paper pulp sent from the pulp making unit, while applying a tension, roller oscillating means for oscillating this rolling roller in a direction intersecting with the running direction of the running belt, and control means for controlling this roller oscillating means according to the running state of the running belt, and
• this control means controls the roller oscillating means so that the rolling roller may maintain the neutral position so as to be perpendicular to the running direction of the running belt when the running position of the running belt is in an appropriate running range, and so that the rolling roller may be directed to a meandering correcting direction for moving the running position of the running belt into the appropriate running range when the running position of the running belt is out of the appropriate running range.