Sheet manufacturing apparatus and sheet manufacturing method

摘要

A sheet manufacturing apparatus includes a supply unit configured to supply material including fibers, a defibrating unit configured to defibrate the material in the air, a classifying unit configured to classify defibrated material, which has been defibrated at the defibrating unit, by airflow into fiber material and waste material, a forming unit configured to form a sheet by using the fiber material, and a discharge blower configured to discharge the waste material by airflow from the classifying unit such that the waste material does not move toward a side of the forming unit. When manufacturing by the sheet manufacturing apparatus stops, the supply unit, the defibrating unit, and the discharge blower are configured to stop in a sequence of the supply unit, the defibrating unit, and the discharge blower.

主权项

1. A sheet manufacturing apparatus, comprising:
a supply unit configured to supply material containing fibers; a defibrating unit disposed downstream relative to the supply unit in a direction in which the material is transferred, and configured to dry-defibrate the material supplied from the supply unit; a classifying unit disposed downstream relative to the defibrating unit in a direction in which defibrated material, which has been dry-defibrated at the defibrating unit, is transferred, the classifying unit being configured to classify the defibrated material by airflow into fiber material and waste material; a screening unit disposed downstream relative to the classifying unit in a transfer direction in which the fiber material is transferred, and configured to screen the fiber material; a transfer path disposed downstream relative to the screening unit in the transfer direction, the transfer path including a supply port that is disposed on the transfer path and is configured to supply resin to an inside of the transfer path; a refining unit disposed downstream relative to the transfer path in the transfer direction, the refining unit being configured to refine the fiber material and the resin; a transfer blower attached to the transfer path, the transfer blower being disposed downstream relative to the supply port and upstream relative to the refining unit in the transfer direction, the transfer blower including a motor to drive the transfer blower and being configured to transfer the fiber material and the resin by airflow through the transfer path; a forming unit disposed downstream relative to the refining unit in the transfer direction and configured to form a sheet by using the fiber material and the resin, which has been transferred by the transfer blower; a discharge blower configured to discharge the waste material, which has been classified at the classifying unit, by airflow from the classifying unit such that the waste material does not move toward a side of the forming unit; and a controller configured to control driving of the supply unit, the defibrating unit, the classifying unit, the motor of the transfer blower, the forming unit, and the discharge blower, when manufacturing by the sheet manufacturing apparatus stops, the controller being configured to control the motor of the transfer blower to stop before controlling the discharge blower to stop.