IP Library Granted Patent US 12686969
Granted Patent B2
US 12686969 · App. 18/513,699 · Granted Jul 21, 2026

Sheet manufacturing apparatus

Inventor: Yukihiro Horiko (Nagano, JP)
Assignee: Seiko Epson Corporation
D21B1/347D21B1/06D21B1/10D21F9/00D21H5/26D21H5/2628
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Quick Facts
Patent No.
US 12686969
App. No.
18/513,699
Granted
Jul 21, 2026
Kind
B2
Abstract

A sheet manufacturing apparatus 1 includes a quantitative feeder unit 15 that measures a predetermined amount of a raw material C and feeds the measured raw material C, a defibration unit 31 that defibrates the raw material C fed from the quantitative feeder unit 15 into fibers, a third unit group 103 that deposits and compresses the fibers and forms the fibers into a sheet, a first frame F 1 to which the quantitative feeder unit 15 is fixed, and a second frame F 2 that is separated from the first frame F 1 and to which the defibration unit 31 is fixed.

Claims (14)

1 . A sheet manufacturing apparatus for manufacturing a sheet comprising:

a quantitative feeder unit including

a physical sensor or a balance that measures a predetermined amount of a raw material and

a vibratory feeder that feeds the measured raw material;

a defibration unit that includes a stator and a rotor and that defibrates the raw material fed from the quantitative feeder unit;

a separator that separates fibers from the defibrated raw material by removing constituents that are not required to manufacture the sheet;

a filter that filters out the constituents;

a compressor that generates compressed air and cleans the filter by blowing the compressed air to the filter;

a sheet forming unit including a belt on which the fibers are deposited and a pair of rollers that compresses the fibers that have been deposited to form the fibers into a sheet;

a first frame to which the quantitative feeder unit is fixed; and

a second frame that is separated from the first frame, to which the defibration unit is fixed, and in which the separator, the filter, and the compressor are installed.

2 . The sheet manufacturing apparatus according to claim 1 , further comprising:

a third frame to which the sheet forming unit is fixed,

wherein the third frame is installed between the first frame and the second frame.