Apparatus and method for manufacturing absorbent body

摘要

An apparatus for manufacturing an absorbent body, including a recessed form die formed on a predetermined face of a predetermined member, moving in one direction along a moving path along the predetermined face; a duct disposed in a predetermined position in the moving path, discharging a gas including fluid absorbent fibers from an opening section toward the predetermined face; and a polymer casting member disposed inside the duct, casting a superabsorbent polymer from a casting opening toward a center area of the opening section in a direction along the moving path, wherein in the case of the form die passing the duct position, by the gas being sucked through air intake holes in a bottom section of the form die, the fluid absorbent fibers and the superabsorbent polymer in the gas are stacked in the form die to form an absorbent body, wherein an air pressure inside the duct is made lower than the air pressure outside the duct because of the gas being sucked through the bottom section of the form die, wherein a duct-inner-wall section is inside the duct and is disposed facing an inner wall face of a wall section of the duct with a spacing therebetween, the wall section having a gap between the predetermined face and the opening section of the duct, and an outside air intrudes into the duct along the moving path through the gap, and the duct-inner-wall section restricts the outside air intruding into the duct through the gap flowing into the center area of the duct.

主权项

1. An apparatus for manufacturing an absorbent body, comprising:
a recessed form die formed on a predetermined face of a predetermined member, moving in one direction along a moving path along the predetermined face; a duct disposed in a predetermined position in the moving path, discharging a gas including fluid absorbent fibers from an opening section toward the predetermined face; and a polymer casting member disposed inside the duct, casting a superabsorbent polymer from a casting opening toward a center area of the opening section in a direction along the moving path, wherein in the case of the form die passing the duct position, by the gas being sucked through air intake holes in a bottom section of the form die, the fluid absorbent fibers and the superabsorbent polymer in the gas are stacked in the form die to form an absorbent body, wherein an air pressure inside the duct is made lower than the air pressure outside the duct because of the gas being sucked through the bottom section of the form die, wherein a first duct-inner-wall section is inside the duct and is disposed facing an inner wall face of a wall section of the duct with a spacing therebetween, the wall section having a first gap between the predetermined face and the opening section of the duct, the first duct-inner-wall section facing the inner wall face of the wall section positioned in an upstream side in the direction along the moving path, a second duct-inner-wall section provided inside the duct and disposed so as to face the inner wall face of the wall section of the duct with a spacing therebetween, the wall section having a second gap between the predetermined face and the opening section of the duct, the second duct-inner-wall having a different size than a size of the first duct-inner-wall, the second duct-inner-wall section facing the inner wall face of the wall section positioned in a downstream side in the direction along the moving path, and an outside air intrudes into the duct along the moving path through the first and second gaps, and the first duct-inner-wall section and the second duct-inner-wall section restrict the outside air intruding into the duct through the first gap and the second gap flowing toward the center area of the duct, wherein the second duct-inner-wall section is a member having a cross-sectional shape in the form of an abbreviated triangle and the abbreviated triangle includes a first face facing the central area of the duct, a second face facing the second gap, and a third face facing the inner wall face of the duct, and the second face is curved.