Sheet article manufacturing apparatus

Patent metadata

Field	Value
Publication number	US-9446570-B2
Application number	US-201214127320-A
Country	US
Kind code	B2
Filing date	Jul 5, 2012
Priority date	Jul 8, 2011
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

Concave portions filled with particles of high-absorbent resin are arranged on a side surface of a cylinder part in its circumferential direction. When each concave portion passes about the lowermost portion, the particles are ejected. A first roller conveys a first sheet member so that the first sheet member passes near the above lowermost portion. A second roller is located anterior to the above lowermost portion with respect to a moving direction of the side surface of the cylinder part at the above lowermost portion, and conveys a second sheet member to the vicinity of the above lowermost portion, to place the second sheet member on the first sheet member which has been supplied with particles. In the second roller, annular grooves are formed on the side surface. Therefore, impact on particles which collide with the second sheet member on the second roller is absorbed and scattering of particles is reduced.

First claim

The invention claimed is:

1. A sheet article manufacturing apparatus for manufacturing a sheet article for an absorbent article, comprising:
a cylinder part having an outer side surface which is generally cylindrical around a rotation axis along a horizontal direction, a plurality of holes each filled with particles of absorbent material or deodorant material being arranged on said outer side surface in a circumferential direction around said rotation axis, said outer side surface being rotated around said rotation axis in a predetermined rotation direction, said cylinder part ejecting said particles almost along a tangent line of said outer side surface at an ejection start position when each of said plurality of holes passes said ejection start position, said ejection start position being set in a vicinity of a lowermost portion in a cross section of said outer side surface which is orthogonal to said rotation axis;
a first sheet conveying roller which is located near said lowermost portion of said cylinder part, said first sheet conveying roller having an outer side surface which is generally cylindrical around a first central axis parallel to said rotation axis, said outer side surface being rotated around said first central axis in a rotation direction opposite to said rotation direction of said cylinder part to convey a first sheet member along said outer side surface which is a continuous sheet and cause said first sheet member to pass in the vicinity of said lowermost portion of said cylinder part;
a second sheet conveying roller which is located anterior to said lowermost portion of said cylinder part with respect to a moving direction of said outer side surface of said cylinder part at said lowermost portion, said second sheet conveying roller having an outer side surface which is generally cylindrical around a second central axis parallel to said rotation axis, for conveying a second sheet member along said outer side surface to the vicinity of said lowermost portion to place said second sheet member on said first sheet member which has been supplied with said particles, said second sheet conveying roller being positioned to provide an open space gap between said first sheet conveying roller and said second sheet conveying roller, said second sheet member being a continuous sheet; and
a sheet bonding part for bonding said second sheet member on said first sheet member;
wherein said second sheet conveying roller has an annular groove on said outer side surface, said annular groove extending along substantially the entire length of said outer side surface in a circumferential direction around said second central axis and facing holes of said cylinder part.

2. The sheet article manufacturing apparatus according to claim 1 , wherein
said plurality of holes are formed on said outer side surface of said cylinder part with respect to each of a plurality of positions in an axial direction parallel to said rotation axis, and
said annular groove is formed on said outer side surface of said second sheet conveying roller with respect to each of said plurality of positions in said axial direction.

3. The sheet article manufacturing apparatus according to claim 2 , further comprising
an applying part for applying adhesive onto a plurality of strip-like regions lying on said first sheet member, said plurality of strip-like regions corresponding to said plurality of positions in said axial direction.

Assignees

• Maruhata Kazuya
• Livedo Corp

Inventors

• Maruhata Kazuya

Classifications

• B32B37/0053 Primary

  Constructional details of laminating machines comprising rollers; Constructional features of the rollers · CPC title

• A61F13/15804

  Plant, e.g. involving several steps · CPC title

• B05C19/00

  Apparatus specially adapted for applying particulate materials to surfaces · CPC title

• A61F13/15764

  Transferring, feeding or handling devices; Drives · CPC title

• B05C19/06

  Storage, supply or control of the application of particulate material; Recovery of excess particulate material · CPC title