Device for producing absorbent body

Patent metadata

Field	Value
Publication number	US-9718211-B2
Application number	US-201314413612-A
Country	US
Kind code	B2
Filing date	Jun 27, 2013
Priority date	Jul 10, 2012
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A device for producing an absorbent body includes crushers that are each configured to crush a supplied pulp sheet into fluff pulp and that each include a plurality of rotating blades, a duct in which the fluff pulp is carried by air, and a rotating fiber stacking drum that includes an adsorbent molding section that molds the fluff pulp carried by air from the duct into an absorbent body with a desired shape. Further, the crushers are staggered in an axis direction of the rotating blades.

First claim

The invention claimed is:

1. A device for producing an absorbent body, comprising:
crushers that are each configured to crush a supplied pulp sheet into fluff pulp and that each include a plurality of rotating blades;
a duct in which the fluff pulp is carried by air; and
a rotating fiber stacking drum that includes an adsorbent molding section that molds the fluff pulp carried by air from the duct into an absorbent body with a desired shape,
wherein the crushers are parallel to each other, and are staggered in an axis direction of the rotating blades, and
wherein the pulp sheet is supplied to each of the crushers, and
wherein, when the axis direction is in parallel to a width direction of the absorbent molding section, the width of the absorbent molding section is longer than a width of each of the crushers.

2. The device according to claim 1 , wherein the duct includes:
upstream ducts that are each provided for a corresponding crusher, wherein a stream of the fluff pulp is charged from the corresponding crusher to each of the upstream ducts; and
a downstream duct that is connected to outlets of the upstream ducts and in which the streams of the fluff pulp carried by air in the upstream ducts are merged and carried by air toward the rotating fiber stacking drum.

3. The device according to claim 1 , wherein neighboring crushers partly overlap each other in the axis direction.

4. The device according to claim 1 ,
wherein when the axis direction is a width direction, a total width of the widths of the crushers is longer than the width of the adsorbent molding section, and
wherein the width of the duct narrows from the crusher side to the rotating fiber stacking drum side.

5. The device according to claim 1 ,
wherein the crushers form a single line in the axis direction, and
wherein when the axis direction is a width direction, a total width of the widths of the crushers is identical with the width of the duct and with the width of the adsorbent molding section.

Assignees

• Zuiko Corp

Inventors

• Nakajima Yoshihiro

Classifications

• A61F13/15658

  Forming continuous, e.g. composite, fibrous webs, e.g. involving the application of pulverulent material on parts thereof · CPC title

• D21B1/066

  the raw material being pulp sheets · CPC title

• D04H1/732

  by fluid current, e.g. air-lay · CPC title

• A61F13/49 Primary

  specially adapted to be worn around the waist, e.g. diapers, nappies · CPC title

• A61F13/15617

  Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres · CPC title