Measuring device, web processing device, fiber feedstock recycling device, and measuring method
The thickness of accumulated fiber can be appropriately measured when accumulating and processing fiber. A measuring device includes a distributor 60 that disperses material containing fiber; a mesh belt 72 that accumulates material dispersed by the distributor 60 ; a roller unit 650 that compresses a second web W 2 accumulated on the mesh belt 72 ; and a measurement device 400 that measures the thickness of the second web W 2 after compression by the roller unit 650.
1. A measuring device comprising:
a distributor configured to disperse material containing fiber;
an accumulator configured to accumulate the material dispersed by the distributor;
a compression device configured to compress accumulated material accumulated on the accumulator; and
a measurement device configured to measure a thickness of the accumulated material compressed by the compression device.
2. The measuring device described in claim 1 , wherein:
the measurement device measures a thickness of the accumulated material after the accumulated material is compressed by the compression device.
3. The measuring device described in claim 2 , wherein:
the compression device includes a pressure roller that contacts the accumulated material and applies pressure to the accumulated material, and a displacement member enabling the pressure roller to move according to the thickness of the accumulated material; and
the measurement device measures displacement of the pressure roller.
4. The measuring device described in claim 3 , wherein:
the distributor has a case, and a configuration that disperses the material inside the case; and
the pressure roller is disposed to a discharge exit through which the accumulated material is conveyed out from the case.
5. The measuring device described in claim 2 , wherein:
the compression device has a suction device configured to suction air through the accumulated material; and
the measurement device measures a thickness of the accumulated material suctioned and compressed by the suction device.
6. The measuring device described in claim 1 , further comprising:
a conveyor having a conveyance surface on which the accumulated material accumulates, and configured to convey the accumulated material;
the measurement device measuring a thickness of the accumulated material referenced to the conveyance surface at a position on a same side of the conveyance surface as the accumulated material.
7. The measuring device described in claim 1 , further comprising:
a plurality of measurement devices disposed along a direction intersecting a conveyance direction of the accumulated material, each of the plural measurement devices measuring a thickness of the accumulated material.
8. A web processing device comprising:
a distributor configured to disperse material containing fiber;
an accumulator configured to accumulate the material dispersed by the distributor and form a web;
a first compression device configured to compress the web; and
a measurement device configured to measure a thickness of the web compressed by the first compression device; and
a second compression device configured to compress the web compressed by the first compression device after measurement by the measurement device.
9. The web processing device described in claim 8 , wherein:
the first compression device compresses the web by less pressure than the second compression device.
10. A fibrous feedstock recycling device comprising:
a defibrator configured to defibrate material containing fiber;
a distributor configured to disperse defibrated material defibrated by the defibrator;
an accumulator configured to accumulate the defibrated material dispersed by the distributor and form a web;
a first compression device configured to compress the web; and
a measurement device configured to measure a thickness of the web compressed by the first compression device; and
a second compression device configured to compress the web compressed by the first compression device after compression by the first compression device.