JP2007260297A - Fiber lamination device for absorbent body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately mass-produce an absorbent body having the same shape crown part in a fiber lamination device for manufacturing the absorbent body to be used for a disposable diaper, a sanitary napkin, a wipe or the like. <P>SOLUTION: The fiber lamination device for the absorbent body, having a fiber lamination drum 4, includes a pair of accumulation boards 5, 5 which are facing each other and is made aways from each other in a fiber lamination drum width direction. The downstream side rear edges 5B, 5B of the accumulation boards 5 face the rotary loci of the drum width direction side edge parts 4e of a recessed part 4b for forming the crown part. An interval L2 between the downstream side rear edges of the accumulation boards 5, 5 is made to be smaller than an interval L1 between the upstream side front edges. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fiber stacking apparatus for producing an absorbent body used for absorbent articles such as paper diapers, sanitary napkins, and wipes.

In absorbent articles such as disposable diapers and sanitary napkins, an absorbent body having a thickness at the center may be used (for example, Patent Documents 1 and 2). This thick portion is divided into the middle and high portions and contributes to an improvement in fit and leakage prevention at the time of wearing.
For example, as shown in FIGS. 7 and 8, the absorber having the middle-high portion includes a stacking drum provided with a deeper middle-high portion forming concave portion 104 b in the absorber-forming concave portion 104 a of the drum peripheral surface 104 </ b> A. Manufactured by a fiber stacking device (conventional examples of fiber stacking devices include, for example, Patent Documents 3 and 4 below).
JP 2004-073322 A JP 2001-095846 A JP 08-337954 JP 05-115505 A

However, in the pulp stacking by the stacking drum, the suction force generated on the stacking surface gradually decreases as the pulp accumulation thickness increases, and therefore, in the middle / high portion forming recess 104b having a depth deeper than the peripheral portion, FIG. As shown in FIG. 2, it is inevitable that the low density portion 140F having a low pulp density is formed in the vicinity of the surface layer portion, and in some cases, the pile is incomplete and the surface is depressed 141F.
Thus, this type of stacking drum is unavoidably formed with the low-density portion 140F in the resulting stacked body, and therefore, in order to obtain an absorbent body having a middle and high part with a desired thickness, Considering the compression due to the crushing of the low density portion 140F and the hollow portion 141F in the subsequent step, the depth 104L of the middle / high portion forming recess 104b is formed deeper than the height of the middle / high portion in the actual product. ing.
And as to how much the depth 104L of the middle-high portion forming recess 104b is set, it is necessary to consider the formation of the low-density portion 140F described above. Therefore, it is difficult to find regularity because it is related to many complex elements, and at present, it is mainly based on the actual matching by cut-and-try and the empirical rules by experts.
For this reason, a fiber drum having a recess for forming a middle and high part is inferior in versatility, and each time a design change is made on the fineness of pulverized pulp, the type and size of polymer particles according to the variety of products, The change work is forced, which is not efficient and contributes to an increase in product cost.
Therefore, the main problem of the present invention is that the weight of the pulp to the specific part of the circumferential surface of the pile drum can be adjusted, the middle and high parts can be formed without the low density part, and thus the absorbent body having the middle and high parts of the same shape can be accurately obtained. An object of the present invention is to provide an absorbent stacking device that can be mass-produced and can flexibly respond to design changes.

The present invention that has solved the above-described problems and the effects thereof are as follows.
<Invention of Claim 1>
A stacking drum provided with suction means for suction on the inner surface side, an absorbent body forming recess formed on the peripheral surface of the stacking drum, and a mid-high section forming recess formed in the absorbent body forming recess Having an absorbent body for forming an absorbent body by stacking pulverized pulp in each of the recesses by the suction action of the suction means,
Having a pair of opposed facing plates separated in the stacking drum width direction;
And the interval between the downstream rear edges of the stacking plate is narrower than the interval between the upstream front edges,
The absorbent fiber stacking device is configured such that the pulverized pulp collected between the collecting plates is directed to a middle-high-portion forming recess forming region on the peripheral surface of the stacking drum.

(Function and effect)
The stacking apparatus of the present invention has a pair of opposing stacking plates spaced in the stacking drum width direction, and the interval between the downstream rear edges of these stacking plates is narrower than the interval between the upstream front edges. Thus, the pulverized pulp collected between the collecting plates is configured to go to the middle-to-high-portion forming recess forming region of the stacking drum peripheral surface. Therefore, the pulverized pulp flowing from the upstream side is collected by the collecting plate at the middle and high part forming recesses and the upper layer thereof and stacked, and at the same time, the outer region from the drum width direction side edge of the middle and high part forming recesses The amount of pulp to the absorbent forming concave portion is relatively reduced, and further, the portion is behind the accumulation plate to restrict the pulp flow, thereby forming the concave portion for forming the middle and high portion of the peripheral surface of the piled drum. More pulp per unit time is accumulated in the area than in other areas. Accordingly, it is possible to eliminate the formation of the low density portion, and it is possible to make the depth of the concave portion for forming the middle / high portion substantially the same as the height of the middle / high portion in the product.

<Invention of Claim 2>
The absorbent fiber stacking apparatus according to claim 1, wherein the collecting plate is positioned such that a downstream rear edge thereof faces a rotation locus of a drum width direction side edge of the middle-high portion forming recess.

(Function and effect)
Pulp can be reliably guided to the mid-high portion forming recess forming region, and the pulverized pulp can be efficiently accumulated in the mid-high portion forming recess forming region.

<Invention of Claim 3>
A stacking drum provided with suction means for suction on the inner surface side, an absorbent body forming recess formed on the peripheral surface of the stacking drum, and a mid-high section forming recess formed in the absorbent body forming recess Having an absorbent body for forming an absorbent body by stacking pulverized pulp in each of the recesses by the suction action of the suction means,
Having a pair of opposed facing plates separated in the stacking drum width direction;
The downstream side trailing edge of the stacking plate is positioned so as to face the rotation trajectory of the edge in the drum width direction of the middle-high part forming recess, and
An absorbent fiber stacking device, wherein the stacking plate has an airfoil shape in which a facing surface is a curved surface that bulges toward the mating stacking plate and a non-facing surface is a flat surface.

(Function and effect)
The fiber stacking apparatus of the present invention has a pair of opposing stacking plates that are spaced apart in the stacking drum width direction, and the downstream trailing edge of this stacking plate is the rotation trajectory of the drum width direction side edge of the middle-high portion forming recess. It faces. And this accumulation board is a curved surface in which an opposing surface bulges to the other-part accumulation board side, and a non-opposing surface is an airfoil shape which is a plane. Therefore, the airflow from the upstream side to the downstream side has a speed difference between the curved surface side and the flat surface side in the vicinity of the integrated plate, and the speed on the curved surface side can be increased. Along with this, the pressure between the collecting plates becomes lower than that on the flat side, and an accumulation action of the pulp located on the upstream side occurs, and more pulp is collected and accumulated in the recesses for forming the middle and high parts. The Thereby, more pulp can be piled up in a drum peripheral surface than the other site | part to the recessed part formation area for middle-high part formation per unit time. Accordingly, it is possible to eliminate the formation of the low density portion, and it is possible to make the depth of the concave portion for forming the middle / high portion substantially the same as the height of the middle / high portion in the product. Further, according to the present invention, the above-described shape makes it possible to obtain an accumulation effect even when the upstream front edge and the downstream rear edge are at the same interval. In the present invention, since the non-opposing surfaces of the stacking plate are flat surfaces, when the width is the same, to the portion of the absorber forming recess that is the outer portion of the edge in the drum width direction of the middle and high portion forming recess. Therefore, it is possible to prevent the airflow from the upstream side from being disturbed by the presence of the collecting plate.

<Invention of Claim 4>
A stacking drum provided with suction means for suction on the inner surface side, an absorbent body forming recess formed on the peripheral surface of the stacking drum, and a mid-high section forming recess formed in the absorbent body forming recess Having an absorbent body for forming an absorbent body by stacking pulverized pulp in each of the recesses by the suction action of the suction means,
Having a pair of opposed facing plates separated in the stacking drum width direction;
The downstream side rear edge of the stacking plate is positioned so as to face the rotation trajectory of the drum width direction side edge portion of the middle-high portion forming recess, and
The integrated plate has a curved surface in which both surfaces bulge outward from the upstream leading edge to the downstream trailing edge, and each surface side maximum swelling relative to a virtual plane connecting the upstream leading edge and the downstream trailing edge. The product of the absorbent body, characterized in that the perpendicular distance from the protruding portion is an airfoil shape formed so that the surface side facing the mating plate side is longer than the non-opposing surface side. Textile equipment.

(Function and effect)
The fiber stacking apparatus of the present invention has a pair of opposing stacking plates that are spaced apart in the stacking drum width direction, and the downstream trailing edge of this stacking plate is the rotation trajectory of the drum width direction side edge of the middle-high portion forming recess. It faces. The integrated plate has a curved surface in which both surfaces bulge outward from the upstream leading edge to the downstream trailing edge, and each surface side with respect to a virtual surface connecting the upstream leading edge and the downstream trailing edge. The airfoil shape is formed so that the perpendicular distance from the most bulged portion is longer on the surface side facing the counterpart stacking plate side than on the non-opposing surface side. Therefore, the airflow from the upstream side to the downstream side has a speed difference on each side in the vicinity of the collecting plate, and the speed on the curved surface side facing the surface increases. Along with this, the pressure between the collecting plates is lower than that on the non-facing side, causing the pulp to accumulate on the upstream side, and more pulp is collected in the recesses for forming the middle and high parts, Is done. Thereby, more pulp can be piled up in a drum peripheral surface than the other site | part to the recessed part formation area for middle-high part formation per unit time. Accordingly, it is possible to eliminate the formation of the low density portion, and it is possible to make the depth of the concave portion for forming the middle / high portion substantially the same as the height of the middle / high portion in the product. Further, according to the present invention, the above-described shape makes it possible to obtain an accumulation effect even when the upstream front edge and the downstream rear edge are at the same interval.

<Invention of Claim 5>
The fiber stacking apparatus for absorbent bodies according to any one of claims 1 to 4, wherein a distance between the downstream rear edges of the stacking plates facing each other is adjustable.

(Function and effect)
In the present invention, the pulp accumulation efficiency in the concave portion for forming the middle and high parts of the circumferential surface of the stacking drum varies depending on the width between the downstream rear edges of the facing collecting plates. Therefore, if the distance between the downstream trailing edges can be adjusted, even if the fineness of the pulverized pulp, the type of polymer particles, the size, etc. are changed, it is possible to adjust the distance by adjusting the distance as appropriate. Therefore, it is not necessary to perform complicated operations such as changing the depth of the recesses for forming the middle and high parts, and the design of the absorber can be flexibly dealt with.

  As described above, according to the present invention, the pulp weight per unit area of the circumferential surface of the pile drum can be adjusted, mass production of the absorbent body having the same shape of the middle and high parts is possible, and the design can be changed. An object of the present invention is to provide an absorbent stacking device that can be flexibly adapted.

Next, embodiments of the present invention will be described in detail below with reference to the drawings.
FIG. 1 is a schematic view of an absorbent stacking apparatus including a stacking drum according to the present invention, and FIG. 3 is a schematic side view of the vicinity of the stacking drum. FIG. 4 is a diagram schematically showing the III-III cross section. FIG. 6 is a cross-sectional view for explaining the shape of the integrated plate.

<Outline of absorbent fiber stacking device>
As shown in FIG. 1, the fiber stacking apparatus X1 of this embodiment includes a defibrating apparatus 2 for finely pulverizing pulp material P1 that is mainly supplied, a chamber chamber 3C surrounded by a casing 3, and this chamber. A stacking drum 4 disposed at the downstream end of the chamber 3C, a suction facility (not shown) that applies a suction action to the outer peripheral surface of the stacking drum 4, and a vacuum device in the latter stage for the stacked absorbent body Q An air supply facility (not shown) for transferring to the conveyor 15, an accumulation plate 5 that is installed upstream of the fiber drum 4 to improve the fiber accumulation efficiency of the pulverized pulp to a part of the fiber drum 4, and the chamber 3C A supply port 6 is provided to supply the absorbent polymer P2 therein.

  The stacking drum 4 is rotated in the circumferential direction A by a drive source (not shown), and the outer peripheral surface 4A has a fine mesh shape or a large number of fine holes as shown in FIG. A body-forming recess 4a and a middle-high portion-forming recess 4b formed deeper in the absorber-forming recess 4a are provided. In the present invention, a region where the middle-high portion forming recess 4b is formed in a plan view (a range including the middle-high portion forming recess and the upper-layer absorber-forming recess) is referred to as a middle-high portion forming recess forming region.

  The suction facility (not shown) is configured so that the accumulation area facing the chamber chamber 3C of the accumulation drum 4 and the area from the accumulation area to the vicinity of the conveyor 15 with the vacuum device at the subsequent stage are set as a negative pressure area (-). A suction action is applied to the peripheral surface 4A of the fiber drum. By the suction action of this suction equipment, the piled drum 4 rotates and the pulverized pulp crushed by the defibrating device 2 and diffused into the chamber 3C while the absorbent body forming recess 4a passes through the piled fiber region. The absorbent polymer P2 supplied into the chamber chamber 3C from the supply port 6 is drawn from the upstream side of the chamber chamber 3C, and is accumulated in the absorbent body forming recess 4a. While adsorbing and holding on the drum week surface, it is conveyed to the vicinity of the conveyor 15 with a vacuum device at the subsequent stage.

  On the other hand, an air supply facility (not shown) supplies air to a region near the conveyor with the vacuum device of the stacking drum to form an air supply region (+), thereby releasing the suction force by the suction facility and The absorbent body Q having the middle and high portions formed by being stacked in the absorbent body forming recess 10a of the fiber drum 4 is transferred to the conveyor 15 with the vacuum device on which the crepe paper 21 is laid.

  In the fiber stacking apparatus X1 of the present invention, as shown in FIGS. 1 to 4, a pair of facing facing plates 5 and 5 that are characteristically spaced apart in the direction of the fiber stacking drum width LD are upstream predetermined positions of the fiber stacking drum 4. Is provided. These collecting plates 5 and 5 are supported by support shafts 7 and 7 in the vicinity of the upstream front edge, and are fixed at predetermined positions in the chamber chamber 3C.

  The stacking plates 5 and 5 are configured so that the interval L2 between the downstream rear edge sides 5B and 5B of the stacking plates 5 and 5 facing each other can be adjusted by rotating the support shafts 7 and 7. The pulverized pulp collected between the plates 5 and 5 is fixed at a position where the pulverized pulp gathers into the middle / high portion forming recess 4b.

  The adjustment interval of the interval L2 between the downstream rear edge sides 5B and 5B may be adjusted within a range of 0.5 to 1 times the interval L1 between the upstream front edges. Even if it is less than 0.5 times, it is only excessively accumulated. In addition, when it is 1 time, there is no accumulation effect. However, when the accumulation effect is not required, it is meaningful to be able to fix the pulp flow at the position that does not disturb most.

  In the form of the illustrated example, the downstream rear edges 5B, 5B are positioned to face the rotation locus 4E of the drum width direction side edge 4e of the middle-high portion forming recess 4b. Considering that the suction action is generated on the outer peripheral surface 4A of the stacking drum, if the downstream trailing edge is positioned, the pulverized pulp collected between the collecting plates is surely directed to the recess forming region for forming the middle and high parts. Thus, the pulverized pulp is particularly preferably collected in the recess forming region for forming the middle and high parts. The drum width direction side edge 4e of the middle-high portion forming recess 4b means the edge of the middle-high portion forming recess 4b located in the outermost drum width direction.

  Here, the distance (shortest distance) between the portion of the downstream trailing edges 5B and 5B of the collecting plates 5 and 5 closest to the stacking drum peripheral surface 4A and the stacking drum peripheral surface corresponding to the upper surface of the absorber forming recess. The distance (L3) is preferably about 50 to 200 mm if the fiber stacking operation is performed with suction equipment and the negative pressure in the stacking drum 4 being 4 to 12 kpa. If it is less than 50 mm, a boundary layer between the middle and high portions and other parts is formed, and there is a risk of cracking of the absorber in the boundary layer. If it exceeds 200 mm, it is once accumulated between the downstream trailing edges of the stacking plate. The pulverized pulverized pulp is diffused again before reaching the peripheral surface of the pile drum, and a partial accumulation effect cannot be obtained.

  On the other hand, in order to obtain the accumulation effect, the range of the downstream rear edge interval L2 is 0.5 to 0.95 times, preferably 0.6 to 0.80 times the upstream front edge interval L1. Is desirable. When it is 0.95 times or more, there is almost no accumulation effect, and when it is less than 0.5 times, it is only excessively accumulated.

  Further, the upstream front edge interval L1 is desirably about 50 to 80% of the width LD of the outer circumferential surface of the stacking drum. If the amount is less than 50%, the accumulation effect is small, and if it exceeds 80%, the amount of the pulp carried to a portion other than the concave portion for forming the middle and high portions may be too small.

  On the other hand, as shown in FIG. 3 in particular, the collecting plates 5 and 5 are formed by connecting the downstream-side trailing edge base end portion 5S, the rotary drum core C and the downstream-side trailing edge end portion 5E. However, it is desirable that the angle θ ′ ′ formed by connecting the casing ends 3 </ b> S and 3 </ b> E and the rotary shaft core C of the stacking drum be ¼ to ¾. If it is less than 1/4, the amount of locally accumulated fibers in the recesses is insufficient, and if it exceeds 3/4, the boundary layer between the accumulated portion and the non-accumulated portion becomes too clear, and there is a risk of cracking in the obtained absorbent body. Arise.

<Second Embodiment>
Next, a second form is shown. The second form is the same as the first form in a side view, as shown in FIG. The distance relationship between the stacking drum peripheral surface 4A and the downstream rear edge 5B and the relationship between ∠θ and ∠θ ′ are the same as those in the first embodiment. The relationship between the upstream front edge interval L1 and the drum outer peripheral surface width LD is also the same as in the first embodiment.

  As shown in FIGS. 5 and 6, the second form is different from the first form in the cross-sectional shape of the integrated plate. The shape of the second embodiment of the stacking plate is such that the opposing surface is a curved surface that bulges toward the mating stacking plate, the non-opposing surface is a flat surface, and these curved surface and flat surface are the upstream leading edge and the downstream trailing edge. The wing shape is shared.

  In this embodiment, the ratio between the upstream front edge interval L1 and the downstream rear edge interval L2 is 1: 1, and the downstream side rear edges 5B and 5B are on the side of the stacking drum width direction of the middle-high portion forming recess 4b. It is particularly preferable to fix it at a position facing the rotation locus 4E of the edge 4e. In addition, you may enable it to adjust the downstream side trailing edge space | interval L2 by the support shafts 7 and the integrated board of this form.

  In the integrated plates 5 and 5 of this embodiment, when the direction of the air flow from the upstream side to the downstream side and the line connecting the upstream front edge 5A and the downstream rear edge 5B are parallel, the speed difference between the curved surface side and the flat surface side Often occurs. Therefore, considering that the circumferential surface 4A of the stacking drum is a suction surface, the ratio of the upstream front edge interval L1 and the downstream rear edge interval L2 is 1: 1 as described above, and the downstream rear edge When 5B is positioned to face the rotation locus 4E of the drum width direction side edge 4e of the middle / high portion forming recess 4b, the pressure between the stacked plates, which is between the curved surface side and the plane side and the air flow direction is substantially parallel, is low. As a result, the accumulation action of the pulp located on the upstream side often occurs, and the collected pulverized pulp is reliably transported to the middle-high portion forming recess forming region and stacked. And, since the pulp accumulation effect due to the accumulation plate shape does not occur on the flat surface side as compared with the curved surface side, the absorber forming concave portion 4a which is an outer portion than the side edge in the drum width direction from the middle high portion forming concave portion forming region. The amount of pulp to the portion is relatively reduced, and the amount of pulp deposited per unit time is reduced. In addition, in this form, since the said site | part does not become a shadow of an accumulation | aggregation board, when it sees as the recessed part 4a for absorber formation whole, it is excellent in pulp fiber integration efficiency.

  Here, the shape and effects of the second-type integrated plates 5 and 5 will be described in detail. FIG. 6 shows a cross-sectional view of the stacking plate. In this cross-sectional view, the linear distance connecting the front edge side base end 5a to the lower rear edge side end 5b is L4, and the maximum bulging point 5c is connected to the front edge side base end 5a to the lower rear edge side. L4: L5: L6 is 5: 1.058, where L5 is the perpendicular distance to the straight line connecting to the end 5b, and L6 is the distance from the leading edge side proximal end 5a through the most bulging point 5c to the lower trailing edge end 5b. : In the 5.85 integrated plate shape, the flow rate on the curved surface side can be increased up to 1.17 times compared to the flat surface side, and the pulp flow rate per unit time can be increased by about 20%. Furthermore, the flow rate on the curved surface side can be increased up to 1.26 times as compared with the flat plate side in the case of the integrated plate shape with L4: L5: L6 of 5: 1.5: 6.30, and the amount of pulp per unit time The inventors have found that can be increased by about 25%. In addition, it is desirable that the most bulged portion 5C is offset and positioned upstream to increase the flow velocity.

  Here, although the said form is a form where the surface which does not oppose is a plane, both surfaces have a curved surface which bulges outward from an upstream front edge to a downstream rear edge, and an upstream front edge and downstream Wings formed such that the perpendicular distance from each surface-side bulge to the virtual surface connecting the side rear edge is longer on the surface side facing the mating stacked plate side than on the non-opposing surface side It may be a mold shape.

  INDUSTRIAL APPLICABILITY The present invention can be used for manufacturing a piled article having a shape including a middle and high part in addition to an absorbent body used for absorbent articles such as disposable diapers and sanitary napkins.

It is the schematic of the fiber stacking apparatus concerning this Embodiment. It is a top view which shows a part of the fiber pile drum. It is a side view schematic diagram in the vicinity of the stacking drum according to the present embodiment. It is the III-III sectional view. It is explanatory drawing of the fiber stacking apparatus concerning a 2nd form. It is explanatory drawing of the pulp accumulation board concerning a 2nd form. It is a top view which shows a part of stacking drum concerning a conventional apparatus. It is the VII-VII sectional view.

Explanation of symbols

  X1 ... Filing device, 2 ... Defibration device, 3 ... Case, 3C ... Chamber chamber, 9 ... Filing device, 4 ... Filing drum, 4A, 104A ... Outer circumferential surface of stacking drum, 4a, 104a ... Absorber molding Recesses 4b, 104b ... Middle-high part formation recesses 4e ... Middle-high part formation recesses in the width direction edge 4E ... Middle-high part formation recesses in the width direction edge, 140F ... Low-density part, 141F ... Indentation part , 40L, 140L: Depth of recess for forming middle and high parts, 5: Accumulation plate, 5A: Upstream front edge, 5B: Downstream trailing edge, 5S: Downstream trailing edge base end, 5E: Downstream trailing edge termination , 6 ... polymer supply port, 7 ... support shaft, rotary shaft, 15 ... conveyor with vacuum device, 21 ... crepe paper, P1 ... raw pulp, P2 ... polymer.

Claims (5)

A stacking drum provided with suction means for suction on the inner surface side, an absorbent body forming recess formed on the peripheral surface of the stacking drum, and a mid-high section forming recess formed in the absorbent body forming recess Having an absorbent body for forming an absorbent body by stacking pulverized pulp in each of the recesses by the suction action of the suction means,
Having a pair of opposed facing plates separated in the stacking drum width direction;
And the interval between the downstream rear edges of the stacking plate is narrower than the interval between the upstream front edges,
The absorbent fiber stacking device is configured such that the pulverized pulp collected between the collecting plates is directed to a middle-high-portion forming recess forming region on the peripheral surface of the stacking drum.   The absorbent fiber stacking apparatus according to claim 1, wherein the collecting plate is positioned such that a downstream rear edge thereof faces a rotation locus of a drum width direction side edge of the middle-high portion forming recess. A stacking drum provided with suction means for suction on the inner surface side, an absorbent body forming recess formed on the peripheral surface of the stacking drum, and a mid-high section forming recess formed in the absorbent body forming recess Having an absorbent body for forming an absorbent body by stacking pulverized pulp in each of the recesses by the suction action of the suction means,
Having a pair of opposed facing plates separated in the stacking drum width direction;
The downstream side trailing edge of the stacking plate is positioned so as to face the rotation trajectory of the edge in the drum width direction of the middle-high part forming recess, and
An absorbent fiber stacking device, wherein the stacking plate has an airfoil shape in which a facing surface is a curved surface that bulges toward the mating stacking plate and a non-facing surface is a flat surface. A stacking drum provided with suction means for suction on the inner surface side, an absorbent body forming recess formed on the peripheral surface of the stacking drum, and a mid-high section forming recess formed in the absorbent body forming recess Having an absorbent body for forming an absorbent body by stacking pulverized pulp in each of the recesses by the suction action of the suction means,
Having a pair of opposed facing plates separated in the stacking drum width direction;
The downstream side rear edge of the stacking plate is positioned so as to face the rotation trajectory of the drum width direction side edge portion of the middle-high portion forming recess, and
The integrated plate has a curved surface in which both surfaces bulge outward from the upstream leading edge to the downstream trailing edge, and each surface side maximum swelling relative to a virtual plane connecting the upstream leading edge and the downstream trailing edge. The product of the absorbent body, characterized in that the perpendicular distance from the protruding portion is an airfoil shape formed so that the surface side facing the mating plate side is longer than the non-opposing surface side. Textile equipment.   The fiber stacking apparatus for absorbent bodies according to any one of claims 1 to 4, wherein a distance between the downstream rear edges of the stacking plates facing each other is adjustable.

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