JP2007202640A - Fiber stacking device of absorber, absorber manufacturing method using the same, and absorbent article having absorber manufactured by the manufacturing method - Google Patents

Fiber stacking device of absorber, absorber manufacturing method using the same, and absorbent article having absorber manufactured by the manufacturing method Download PDF

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JP2007202640A
JP2007202640A JP2006022205A JP2006022205A JP2007202640A JP 2007202640 A JP2007202640 A JP 2007202640A JP 2006022205 A JP2006022205 A JP 2006022205A JP 2006022205 A JP2006022205 A JP 2006022205A JP 2007202640 A JP2007202640 A JP 2007202640A
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fiber stacking
absorber
stacking
fiber
drum
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JP4832908B2 (en
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Kazuhiro Kato
和宏 加藤
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Daio Paper Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fiber stacking device which stably and efficiently stacks the raw material of an absorber without causing a stacking irregularity, an absorber manufacturing method using the fiber stacking device, and an absorbent article having the absorber manufactured by the manufacturing method. <P>SOLUTION: The fiber stacking device includes a fiber stacking drum 1 having an attraction chamber 2 in the interior, a porous plate 10 which keeps an absorber raw material S stacked on the outside periphery, and a straightener 13 provided inside of the porous plate 10 and straightening air streams. The attraction chamber 2 is a fiber stacking device connected to an attraction means through a duct 3 arranged on one side of the axial direction of the fiber stacking drum 1. The straightener 13 is a honeycomb structure, and a plurality of plates forming the honeycomb are arranged in a state of inclining downward toward the other side 1B of the axial direction of the fiber stacking drum 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、吸収体の積繊装置及びこれを用いた吸収体の製造方法、並びにこの製造方法により製造された吸収体を有する吸収性物品に関するものである。   The present invention relates to an absorbent fiber stacking apparatus, an absorbent body manufacturing method using the same, and an absorbent article having an absorbent body manufactured by the manufacturing method.

紙おむつ、生理用ナプキン等の吸収性物品には、尿、便または経血等を吸収するための吸収体が使用されており、この吸収体は粉砕パルプや高吸水性ポリマーを積繊して成形されている。
この吸収体は、例えば、図１に示す吸収体製造装置によって製造される。吸収体製造装置は、供給されるパルプ材料を細かく粉砕するための解繊装置５１と、この解繊装置５１を囲繞するとともに、粉砕された粉砕パルプを空気によって搬送するためのケーシング５２と、このケーシング５２の下流側開口部に配設される積繊装置５３と、を備えている。
このうち積繊装置５３は、図２に示すように、その外周表面に多数の吸引孔が形成されたメッシュ等から構成される多孔板１１０を有する積繊ドラム１０１と、この積繊ドラム１０１の内部に設けられた吸引チャンバ１０２と、を備えており、積繊ドラム１０１の一方側面に連結されたダクト１０３を介して吸引手段（図示せず）によって吸引チャンバ１０２内が負圧に維持されることにより、多孔板１１０上に空気搬送された粉砕パルプを積繊させるようになっている。この多孔板１１０は、積繊ドラム１０１の幅方向両端部に設けられたパターンリング１１１，１１１を側面部とし、多孔板１１０を底面部とした凹部に、粉砕パルプや高吸水性ポリマーからなる吸収体原材料Ｓが積繊されるものである。
なお、ケーシング５２には、高吸収性ポリマーの粉粒物を粉砕パルプと共に供給するためのポリマー投入口５４が設けられている。吸収体の形に成形された吸収体原材料Ｓは、積繊ドラム１０１に吸着保持されて、積繊ドラム１０１と共に回転して搬送され、積繊ドラム１０１内の下部に形成された給気チャンバ１０４領域に達すると、転写ドラム５５側に転写される。そして、最終的に、この転写ドラム５５から吸収体原材料Ｓは吸引装置付コンベア５６に転写され、コンベア５６上を搬送されていく。なお、図１における（−）は負圧、（＋）は加圧を示している。
ここで、吸収体原材料Ｓを吸引する吸引力は、積繊ドラム１０１の幅方向において、ダクト１０３が取付けられた積繊ドラム１０１の一方側面がわ（ダクト側）の方が高い。これは、一方側面がわ（ダクト側）の方が他方側面がわよりも距離的に吸引手段（図示せず）に近いためである。そのため、本来ならば、図３（１）に示すように、吸収体の幅方向の左右の目付け（厚み）は均等であるべきであるにもかかわらず、図３（２）に示すように、一方側面がわ（ダクト側）の方で積繊された部分（右側）が他方側面がわの方で積繊された部分（左側）よりも厚くなり、吸収体の左右の目付け（厚み）に差が生じてしまう（積繊ムラ）という問題があった。
上記問題点を解決するために、特許文献１には、吸引手段によるバキュームエアーとの関係で、吸収体重量のバラツキを抑える積繊ドラムが記載されている。
特開２００４−２２２７７４号公報 Absorbents for absorbing urine, feces, menstrual blood, etc. are used in absorbent articles such as disposable diapers and sanitary napkins. These absorbents are formed by stacking pulverized pulp and superabsorbent polymers. Has been.
This absorber is manufactured by the absorber manufacturing apparatus shown in FIG. 1, for example. The absorbent body manufacturing apparatus includes a defibrating device 51 for finely pulverizing the supplied pulp material, a casing 52 for surrounding the defibrating device 51 and conveying the pulverized pulverized pulp by air, and this And a fiber stacking device 53 disposed in a downstream opening of the casing 52.
Among these, as shown in FIG. 2, the fiber stacking device 53 includes a fiber drum 101 having a perforated plate 110 composed of a mesh or the like in which a large number of suction holes are formed on the outer circumferential surface thereof, A suction chamber 102 provided therein, and the suction chamber 102 is maintained at a negative pressure by suction means (not shown) via a duct 103 connected to one side surface of the fiber drum 101. As a result, the pulverized pulp conveyed by air on the perforated plate 110 is piled up. The perforated plate 110 has an absorption made of pulverized pulp or a highly water-absorbing polymer in a concave portion having the side surfaces of the pattern rings 111 and 111 provided at both ends in the width direction of the fiber drum 101 and the bottom of the perforated plate 110. The body raw material S is piled up.
The casing 52 is provided with a polymer inlet 54 for supplying the superabsorbent polymer particles together with the pulverized pulp. The absorbent raw material S molded in the form of an absorbent body is adsorbed and held on the stacking drum 101, rotated and conveyed with the stacking drum 101, and an air supply chamber 104 formed in the lower part of the stacking drum 101. When the area is reached, the image is transferred to the transfer drum 55 side. Finally, the absorbent raw material S is transferred from the transfer drum 55 to the conveyor 56 with a suction device, and is conveyed on the conveyor 56. In FIG. 1, (−) indicates negative pressure, and (+) indicates pressurization.
Here, the suction force for sucking the absorbent raw material S is higher in the lateral direction (duct side) of the stacking drum 101 to which the duct 103 is attached in the width direction of the stacking drum 101. This is because the side of the one side (duct side) is closer to the suction means (not shown) than the side of the other side. Therefore, originally, as shown in FIG. 3 (1), as shown in FIG. 3 (1), although the fabric weight (thickness) on the left and right in the width direction of the absorber should be equal, On the other hand, the part (right side) piled up on the side of the wing (duct side) is thicker than the part (left side) piled up on the other side of the wing (side), and the fabric weight on the left and right sides (thickness) of the absorber There was a problem that a difference occurred (uneven pile).
In order to solve the above problems, Patent Document 1 discloses a stacking drum that suppresses variations in the weight of the absorbent body in relation to the vacuum air by the suction means.
JP 2004-222774 A

しかしながら、上記のものは、メッシュ等から構成される多孔板１１０の吸引孔の径の大きさを積繊ドラムの幅方向で段階的に小さくしていく方法で、バキュームエアーを整流に近づけ、吸収体重量のバラツキを抑える構成としており、このような吸引孔には粉砕パルプ及び高吸水性ポリマーの吸引孔への目詰まりが発生しやすく、結果として吸収体のプロファイルが不安定になってしまい、効率が悪いという問題点があった。
そこで、本発明の主たる課題は、上記課題を解決することであり、積繊ムラを生じさせることなく、安定して効率よく吸収体原材料を積繊する積繊装置及びこれを用いた吸収体の製造方法、並びにこの製造方法により製造された吸収体を有する吸収性物品を提供することにある。 However, the above is a method in which the diameter of the suction hole of the perforated plate 110 made of mesh or the like is gradually reduced in the width direction of the stacking drum, and vacuum air is brought close to rectification and absorbed. It is configured to suppress variation in body weight, such suction holes are likely to clog the suction holes of pulverized pulp and superabsorbent polymer, resulting in an unstable absorber profile, There was a problem of poor efficiency.
Therefore, a main problem of the present invention is to solve the above-described problem, and a fiber stacking apparatus that stably and efficiently stacks the absorbent raw material without causing uneven fiber stacking and an absorbent body using the same It is providing the manufacturing method and the absorbent article which has an absorber manufactured by this manufacturing method.

上記課題を解決した本発明は、次のとおりである。
＜請求項１記載の発明＞
請求項１記載の発明は、内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、前記整流体は、ハニカム構造体であり、このハニカムを構成する複数の板は、前記積繊ドラムの軸方向の他方側面に向かって下方に傾斜するように配設された、ことを特徴とする積繊装置である。 The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
The invention described in claim 1 has a suction chamber inside, a perforated plate on which an absorbent raw material is stacked on the outer peripheral surface, and a rectifying body provided on the inner side of the perforated plate for rectifying the air flow. A stacking drum, wherein the suction chamber is connected to suction means via a duct disposed on one side surface in the axial direction of the stacking drum, and the rectifier has a honeycomb structure The fiber stacking apparatus is characterized in that the plurality of plates constituting the honeycomb are disposed so as to be inclined downward toward the other side surface in the axial direction of the fiber stacking drum.

＜請求項２記載の発明＞
請求項２記載の発明は、内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、前記整流体はハニカム構造体であり、このハニカムを構成する複数の板は、多孔板の幅方向における多孔板の任意点とダクトの略中心軸における定点とを結ぶ距離が常に略等距離になるように配設された、ことを特徴とする積繊装置である。 <Invention of Claim 2>
The invention described in claim 2 has a suction chamber inside, a perforated plate on which an absorbent raw material is stacked on the outer peripheral surface, and a rectifier that rectifies the air flow provided inside the perforated plate. A fiber stacking apparatus comprising a fiber stacking drum, wherein the suction chamber is connected to suction means via a duct disposed on one side surface in the axial direction of the fiber stacking drum, wherein the rectifier is a honeycomb structure. The plurality of plates constituting the honeycomb are arranged such that the distances connecting the arbitrary points of the porous plate in the width direction of the porous plate and the fixed points on the substantially central axis of the duct are always substantially equidistant. This is a fiber stacking device characterized by that.

（作用効果）
整流体としてハニカム構造体を採用し、このハニカムを構成する複数の板を、積繊ドラムの軸方向の他方側面に向かって下方に傾斜するように配設することにより、多孔板の幅方向で生じる吸引手段までの吸引距離の距離差を減少又は無くすことで、多孔板の幅方向における吸引力の差を減少又は無くし、製造される吸収体の積繊ムラを防止することができる。
また、具体的に、ハニカムを構成する複数の板を、多孔板の幅方向における多孔板の任意点とダクトの略中心軸における定点とを結ぶ距離が常に略等距離になるように配設することにより、多孔板の幅方向で生じる吸引手段までの吸引距離の距離差を無くすことで、多孔板の幅方向における吸引力の差を無くし、製造される吸収体の積繊ムラを防止することができる。 (Function and effect)
By adopting a honeycomb structure as a rectifying body and arranging a plurality of plates constituting the honeycomb so as to incline downward toward the other side surface in the axial direction of the stacking drum, in the width direction of the porous plate By reducing or eliminating the difference in suction distance to the generated suction means, the difference in suction force in the width direction of the perforated plate can be reduced or eliminated, and uneven fiber stacking of the manufactured absorbent body can be prevented.
Further, specifically, the plurality of plates constituting the honeycomb are arranged so that the distances connecting the arbitrary points of the porous plate in the width direction of the porous plate and the fixed points on the substantially central axis of the duct are always substantially equidistant. By eliminating the difference in the suction distance to the suction means generated in the width direction of the perforated plate, the difference in suction force in the width direction of the perforated plate is eliminated, and uneven fiber stacking of the manufactured absorbent body is prevented. Can do.

＜請求項３記載の発明＞
請求項３記載の発明は、内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、前記整流体は、ダクトに取付けられた複数枚の折曲した板から構成され、これら折曲板は、前記積繊ドラムの軸方向の他方側面に向かって下方に傾斜する傾斜面を有する、ことを特徴とする積繊装置である。 <Invention of Claim 3>
The invention described in claim 3 has a suction chamber inside, a perforated plate on which the absorbent raw material is stacked on the outer peripheral surface, and a rectifier that rectifies the air flow provided inside the perforated plate. A stacking drum, wherein the suction chamber is connected to suction means via a duct disposed on one axial side surface of the stacking drum, and the rectifier is connected to the duct. A fiber stacking device comprising a plurality of attached bent plates, each of which has an inclined surface inclined downward toward the other side surface in the axial direction of the fiber stacking drum. It is.

＜請求項４記載の発明＞
請求項４記載の発明は、内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、前記整流体は、ダクトに取付けられた複数枚の板から構成され、これら複数の板は、多孔板の幅方向における多孔板の任意点とダクトの略中心軸における定点とを結ぶ距離が常に略等距離になるように配設された、ことを特徴とする積繊装置である。 <Invention of Claim 4>
The invention described in claim 4 has a suction chamber inside, a perforated plate on which an absorbent raw material is piled on the outer peripheral surface, and a rectifying body provided on the inner side of the perforated plate to rectify the air flow. A stacking drum, wherein the suction chamber is connected to suction means via a duct disposed on one axial side surface of the stacking drum, and the rectifier is connected to the duct. The plurality of plates are arranged so that the distances between the arbitrary points of the porous plate in the width direction of the porous plate and the fixed points on the substantially central axis of the duct are always substantially equidistant. The fiber stacking device is characterized by being provided.

（作用効果）
整流体をダクトに取付けられた複数枚の折曲した板から構成し、これら折曲板を、積繊ドラムの軸方向の他方側面に向かって下方に傾斜する傾斜面を有するように形成することにより、多孔板の幅方向で生じる吸引手段までの吸引距離の距離差を減少又は無くすことで、多孔板の幅方向における吸引力の差を減少又は無くし、製造される吸収体の積繊ムラを防止することができる。
また、具体的に、整流体の複数の板を、多孔板の幅方向における多孔板の任意点とダクトの略中心軸における定点とを結ぶ距離が常に略等距離になるように配設することにより、多孔板の幅方向で生じる吸引手段までの吸引距離の距離差を無くすことで、多孔板の幅方向における吸引力の差を無くし、製造される吸収体の積繊ムラを防止することができる。 (Function and effect)
The rectifying body is composed of a plurality of bent plates attached to a duct, and these bent plates are formed to have an inclined surface that is inclined downward toward the other side surface in the axial direction of the stacking drum. By reducing or eliminating the difference in the suction distance to the suction means generated in the width direction of the perforated plate, the difference in suction force in the width direction of the perforated plate is reduced or eliminated, and unevenness in the accumulated fiber of the manufactured absorbent body is reduced. Can be prevented.
Further, specifically, the plurality of plates of the rectifying body are arranged so that the distances connecting the arbitrary points of the porous plate in the width direction of the porous plate and the fixed points on the substantially central axis of the duct are always substantially equidistant. By eliminating the difference in the suction distance to the suction means generated in the width direction of the perforated plate, the difference in suction force in the width direction of the perforated plate is eliminated, and uneven fiber stacking of the manufactured absorbent body can be prevented. it can.

＜請求項５記載の発明＞
請求項５記載の発明は、請求項１乃至４のいずれか１項記載の吸収体の積繊装置を用いたことを特徴とする、吸収体の製造方法である。 <Invention of Claim 5>
A fifth aspect of the present invention is a method for manufacturing an absorbent body using the absorbent fiber stacking apparatus according to any one of the first to fourth aspects.

＜請求項６記載の発明＞
請求項６記載の発明は、請求項５記載の製造方法により製造される吸収体を有することを特徴とする、吸収性物品である。 <Invention of Claim 6>
The invention according to claim 6 is an absorbent article characterized by having an absorbent body manufactured by the manufacturing method according to claim 5.

本発明によれば、積繊ムラを生じさせることなく、安定して効率よく吸収体原材料を積繊させることができる等の利点がもたらされる。   According to the present invention, there is an advantage that the absorbent raw material can be stably and efficiently stacked without causing uneven fiber stacking.

以下、本発明の実施の形態を説明する。
本発明に係る積繊装置の基本構成は、例えば、図１、図２及び図４に示すように、多数の吸引孔が形成されたメッシュやパンチングメタル等から構成され、外周表面に多孔板１０を有する積繊ドラム１と、この積繊ドラム１の内部に配設される吸引チャンバ２と、を備えており、積繊ドラム１の一方側面１Ａに連結されたダクト３を介して吸引手段（図示せず）によって吸引チャンバ２内が負圧に維持されることにより、多孔板１０の表面上に空気搬送された粉砕パルプや高吸水性ポリマーからなる吸収体原材料Ｓを積繊させるようになっている。 Embodiments of the present invention will be described below.
The basic structure of the fiber stacking apparatus according to the present invention is composed of, for example, a mesh or a punching metal having a large number of suction holes, as shown in FIGS. And a suction chamber 2 disposed inside the stacking drum 1, and suction means (via a duct 3 connected to one side surface 1A of the stacking drum 1). When the inside of the suction chamber 2 is maintained at a negative pressure by an unillustrated), the absorbent raw material S made of pulverized pulp or high water-absorbing polymer that is conveyed by air on the surface of the porous plate 10 is piled up. ing.

また、前述したように、積繊ドラム１の下部には、転写ドラム５５が設けられている。図１に示すように、積繊ドラム１内の下部に形成された給気チャンバ４領域に達すると、転写ドラム５５に転写される。そして、前述した図１に示すように、転写ドラム５５の下部には、転写ドラム５５に吸着保持された吸収体を搬出する、吸引装置付コンベア５６が設けられている。そのため、吸収体は、転写ドラム５５の外周に吸着保持されながらドラムの周方向に回転し、吸引装置付コンベア５６に達すると吸引装置５６Ａによってコンベア上に転写され、そのまま搬送されるようになっている。   Further, as described above, the transfer drum 55 is provided below the stacking drum 1. As shown in FIG. 1, when reaching the air supply chamber 4 region formed in the lower part of the stacking drum 1, it is transferred to the transfer drum 55. As shown in FIG. 1 described above, a conveyor 56 with a suction device is provided below the transfer drum 55 to carry out the absorbent body adsorbed and held by the transfer drum 55. Therefore, the absorber rotates in the circumferential direction of the drum while being sucked and held on the outer periphery of the transfer drum 55. When the absorber reaches the conveyor 56 with the suction device, it is transferred onto the conveyor by the suction device 56A and is conveyed as it is. Yes.

図２に示すように、積繊ドラム１における多孔板１０は、積繊ドラム１の幅方向両端部に設けられたパターンリング１１，１１にボルト１２，１２又は溶接等により取付けられており、図４に示すように、これらパターンリング１１，１１の側面（厚み面）を側面部とし、多孔板１０を底面部とした凹部に、粉砕パルプや高吸水性ポリマーからなる吸収体原材料Ｓが積繊されるものである。   As shown in FIG. 2, the perforated plate 10 in the stacking drum 1 is attached to the pattern rings 11, 11 provided at both ends in the width direction of the stacking drum 1 by bolts 12, 12 or welding. As shown in FIG. 4, the absorbent raw material S made of pulverized pulp or a superabsorbent polymer is placed in a concave portion having the side surfaces (thickness surfaces) of the pattern rings 11 and 11 as side surfaces and the perforated plate 10 as a bottom surface. It is what is done.

図４に示すように、この多孔板１０には、その内部側（裏面側）に、ハニカム構造体からなる整流体１３が設けられており、多孔板１０と整流体１３とは一体化された構成となっている。この整流体１３のハニカムを構成する複数の板は、積繊ドラムの軸方向の他方側面１Ｂに向かって下方に傾斜するように配設されている。吸収体原材料Ｓを吸引する吸引力（圧力）は、吸引手段からの距離に反比例するため、この整流体１３の板の上記傾斜によって、積繊ドラム１における多孔板１０の幅方向（吸収体の幅方向）で生じる吸引手段との距離差を減少又はなくし、吸引力を略等しくしている。その結果、多孔板１０の幅方向（吸収体の幅方向）で圧力差をなくし、吸収体の左右の目付け（厚み）を均等にすることができるものである。なお、整流体１３は、多孔板１０と一体となっているので、多孔板１０の剛性を増し、変形を防止する役割も有している。   As shown in FIG. 4, the porous plate 10 is provided with a rectifying body 13 made of a honeycomb structure on the inner side (back side), and the porous plate 10 and the rectifying body 13 are integrated. It has a configuration. The plurality of plates constituting the honeycomb of the rectifying body 13 are disposed so as to be inclined downward toward the other side surface 1B in the axial direction of the fiber stacking drum. Since the suction force (pressure) for sucking the absorbent raw material S is inversely proportional to the distance from the suction means, the inclination of the plate of the rectifier 13 causes the width direction of the porous plate 10 in the stacking drum 1 (of the absorbent body). The distance difference with the suction means generated in the width direction is reduced or eliminated, and the suction force is made substantially equal. As a result, a pressure difference can be eliminated in the width direction of the porous plate 10 (width direction of the absorber), and the weight (thickness) of the left and right of the absorber can be made uniform. In addition, since the rectifying body 13 is integrated with the porous plate 10, it has a role of increasing the rigidity of the porous plate 10 and preventing deformation.

具体的には、図５に示すように、多孔板１０の幅方向において、吸引手段から一番遠方側のポイントＰＰ0からダクトの略中心軸の点ＤＰまでの距離を計測し、この長さＬ0を基準として、多孔板１０の幅方向のポイントＰＰ1，ＰＰ2，…からダクトの中心点ＤＰまでの距離Ｌ1，Ｌ2，…を長さＬ0と等しくなるようにハニカムの縦断面に漸次傾斜をつけていく。これにより、積繊ドラム１の一方側面１Ａと他方側面１Ｂの幅方向、すなわち、積繊ドラム１における多孔板１０の幅方向（吸収体の幅方向）で生じる吸引手段との距離差を解消し、同一の吸引力を確保することができる。なお、ハニカムの板の間隔は、圧力損失等を考慮して決定すればよい。 Specifically, as shown in FIG. 5, in the width direction of the porous plate 10, the distance from point PP 0 of the most from the suction means distal to the DP point substantially central axis of the duct is measured, the length based on the L 0, the width direction of the points PP 1 of the porous plate 10, PP 2, the distance L 1 from ... to the center point DP of the duct, L 2, longitudinal honeycomb to be equal ... the length L 0 The surface is gradually inclined. Thereby, the distance difference with the suction means produced in the width direction of the one side surface 1A and the other side surface 1B of the stacking drum 1, that is, the width direction of the perforated plate 10 in the stacking drum 1 (width direction of the absorber) is eliminated. The same suction force can be ensured. The interval between the honeycomb plates may be determined in consideration of pressure loss and the like.

この整流体１３によって、安定して効率よく積繊ムラが防止でき、製造された吸収体が取付けられた紙おむつや生理用ナプキンの装着の際には、左右の足回りでの違和感をなくすことができる。また、吸収体の左右の目付け（厚み）が同じになるので、圧縮強度が左右で等しくなり、フィットエンボス、コアエンボス等のエンボスの入りが良くなる。   This rectifying body 13 can stably and efficiently prevent uneven fiber accumulation, and can eliminate the uncomfortable feeling on the left and right undercarriage when wearing a disposable diaper or sanitary napkin to which the manufactured absorbent body is attached. it can. Further, since the weights (thicknesses) on the left and right sides of the absorbent body are the same, the compressive strength is the same on the left and right sides, and embossing such as fit embossing and core embossing is improved.

他の実施の形態として、上記整流体１３をダクト３に取付けた形態である整流体１４も考えることができる。図６に示すように、整流体１４は、多孔板１０の内部側（裏面側）に取付けられた整流体１３Ｂの下部に位置し、前述した実施の形態のように、積繊ドラム１における多孔板１０の幅方向（吸収体の幅方向）で生じる吸引手段との距離差をなくすように折曲された複数の板を配設する形成されている。   As another embodiment, a rectifying body 14 in which the rectifying body 13 is attached to the duct 3 can be considered. As shown in FIG. 6, the rectifying body 14 is located below the rectifying body 13 </ b> B attached to the inner side (back side) of the perforated plate 10, and the porous drum in the stacking drum 1 as in the above-described embodiment. A plurality of bent plates are disposed so as to eliminate a difference in distance from the suction means generated in the width direction of the plate 10 (width direction of the absorber).

この折曲部分のうち上方は、積繊ドラム１の軸方向の他方側面に向かって下方に傾斜する傾斜面で形成されている。整流体１４の板の上記傾斜によって、積繊ドラム１における多孔板１０の幅方向（吸収体の幅方向）で生じる吸引手段との距離差を減少又はなくし、吸引力を略等しくしている。その結果、多孔板１０の幅方向（吸収体の幅方向）で圧力差をなくし、吸収体の左右の目付け（厚み）を均等にすることができる。整流体１４の板の傾斜等については、前述した整流体１４と略同じ考え方なので詳細な説明は省略する。   The upper part of the bent portion is formed by an inclined surface that is inclined downward toward the other side surface of the stacking drum 1 in the axial direction. Due to the inclination of the plate of the rectifying body 14, the difference in distance from the suction means generated in the width direction of the porous plate 10 (the width direction of the absorber) in the fiber stack drum 1 is reduced or eliminated, and the suction force is made substantially equal. As a result, the pressure difference can be eliminated in the width direction of the porous plate 10 (width direction of the absorber), and the weight (thickness) of the left and right of the absorber can be made uniform. Since the inclination of the plate of the rectifying body 14 is substantially the same as the rectifying body 14 described above, a detailed description thereof will be omitted.

また、これらの複数の板は、図７で示すように、吸引チャンバ２の領域内で、かつケーシング５２によって囲繞され、粉砕された粉砕パルプが搬送される部分に配設されるように、積繊ドラム１の軸方向から見ると略扇型の形状をしている。   Further, as shown in FIG. 7, these plural plates are stacked so as to be disposed in the region of the suction chamber 2 and in a portion surrounded by the casing 52 and where the pulverized pulverized pulp is conveyed. When viewed from the axial direction of the fiber drum 1, it has a substantially fan shape.

なお、多孔板の内部側（裏面側）に取付ける整流体１３Ｂは、一般的なハニカム構造体であり、専ら多孔板１０と一体化させることで多孔板１０の剛性を増し、変形を防止し紙綿全体の積層を均一化させるためのものである。   Note that the rectifying body 13B attached to the inner side (back side) of the porous plate is a general honeycomb structure, and is exclusively integrated with the porous plate 10 to increase the rigidity of the porous plate 10 and prevent deformation. This is for uniformizing the lamination of the entire cotton.

吸収体製造装置の概略図である。It is the schematic of an absorber manufacturing apparatus. 積繊ドラムの部分平面図である。It is a fragmentary top view of a stacking drum. 吸収体の横（幅方向）断面図である。It is horizontal (width direction) sectional drawing of an absorber. 本発明に係る積繊ドラムの要部拡大断面図（Ｉ−Ｉ断面）である。It is a principal part expanded sectional view (II cross section) of the fiber drum which concerns on this invention. 本発明に係る整流体の板の配設方法を説明するための概要図である。It is a schematic diagram for demonstrating the arrangement | positioning method of the plate of the rectification body which concerns on this invention. 他の整流体を説明するための積繊ドラムの要部拡大断面図（Ｉ−Ｉ断面）である。It is a principal part expanded sectional view (II cross section) of the fiber pile drum for demonstrating another rectifier. その整流体の正面形状を説明するための概要図である。It is a schematic diagram for demonstrating the front shape of the rectifier.

符号の説明Explanation of symbols

１…積繊ドラム、２…吸引チャンバ、３…ダクト、４…給気チャンバ、１０…多孔板、１１…パターンリング、１２…ボルト、１３，１４…整流体、Ｓ…吸収体原材料。   DESCRIPTION OF SYMBOLS 1 ... Stacking drum, 2 ... Suction chamber, 3 ... Duct, 4 ... Air supply chamber, 10 ... Perforated plate, 11 ... Pattern ring, 12 ... Bolt, 13, 14 ... Rectifier, S ... Absorber raw material.

Claims (6)

内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、
該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、
前記整流体は、ハニカム構造体であり、
このハニカムを構成する複数の板は、前記積繊ドラムの軸方向の他方側面に向かって下方に傾斜するように配設された、
ことを特徴とする積繊装置。 A stacking drum having a suction chamber inside, a perforated plate for stacking the absorbent raw material on the outer peripheral surface, and a rectifying body provided on the inner side of the perforated plate for rectifying the air flow,
The suction chamber is a fiber stacking apparatus connected to suction means via a duct disposed on one axial side surface of the fiber stacking drum,
The rectifying body is a honeycomb structure,
The plurality of plates constituting the honeycomb were disposed so as to be inclined downward toward the other side surface in the axial direction of the fiber stacking drum,
A fiber stacking device characterized by that. 内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、
該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、
前記整流体はハニカム構造体であり、
このハニカムを構成する複数の板は、多孔板の幅方向における多孔板の任意点とダクトの略中心軸における定点とを結ぶ距離が常に略等距離になるように配設された、
ことを特徴とする積繊装置。 A stacking drum having a suction chamber inside, a perforated plate for stacking the absorbent raw material on the outer peripheral surface, and a rectifying body provided on the inner side of the perforated plate for rectifying the air flow,
The suction chamber is a fiber stacking apparatus connected to suction means via a duct disposed on one axial side surface of the fiber stacking drum,
The rectifying body is a honeycomb structure,
The plurality of plates constituting the honeycomb are arranged so that the distances connecting the arbitrary points of the porous plate in the width direction of the porous plate and the fixed points on the substantially central axis of the duct are always substantially equidistant,
A fiber stacking device characterized by that. 内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、
該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、
前記整流体は、ダクトに取付けられた複数枚の折曲した板から構成され、
これら折曲板は、前記積繊ドラムの軸方向の他方側面に向かって下方に傾斜する傾斜面を有する、
ことを特徴とする積繊装置。 A stacking drum having a suction chamber inside, a perforated plate for stacking the absorbent raw material on the outer peripheral surface, and a rectifying body provided on the inner side of the perforated plate for rectifying the air flow,
The suction chamber is a fiber stacking apparatus connected to suction means via a duct disposed on one axial side surface of the fiber stacking drum,
The rectifier is composed of a plurality of bent plates attached to a duct,
These bent plates have an inclined surface that is inclined downward toward the other side surface in the axial direction of the fiber stacking drum,
A fiber stacking device characterized by that. 内部に吸引チャンバと、外周表面に吸収体原材料を積繊させる多孔板と、この多孔板の内部側に設けられた、空気流を整流する整流体と、を有する積繊ドラムを備え、
該吸引チャンバは、該積繊ドラムの軸方向の一方側面に配設されたダクトを介して吸引手段と接続された積繊装置であって、
前記整流体は、ダクトに取付けられた複数枚の板から構成され、
これら複数の板は、多孔板の幅方向における多孔板の任意点とダクトの略中心軸における定点とを結ぶ距離が常に略等距離になるように配設された、
ことを特徴とする積繊装置。 A stacking drum having a suction chamber inside, a perforated plate for stacking the absorbent raw material on the outer peripheral surface, and a rectifying body provided on the inner side of the perforated plate for rectifying the air flow,
The suction chamber is a fiber stacking apparatus connected to suction means via a duct disposed on one axial side surface of the fiber stacking drum,
The rectifier is composed of a plurality of plates attached to a duct,
The plurality of plates are arranged such that the distances between the arbitrary points of the porous plate in the width direction of the porous plate and the fixed points on the substantially central axis of the duct are always substantially equal distances
A fiber stacking device characterized by that. 請求項１乃至４のいずれか１項記載の吸収体の積繊装置を用いたことを特徴とする、吸収体の製造方法。   The manufacturing method of the absorber characterized by using the fiber pile apparatus of the absorber of any one of Claims 1 thru | or 4. 請求項５記載の製造方法により製造される吸収体を有することを特徴とする、吸収性物品。   An absorbent article comprising an absorbent body produced by the production method according to claim 5.
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JP2002272782A (en) * 2001-03-16 2002-09-24 Daio Paper Corp Fiber accumulating device for absorbent article
JP2004222774A (en) * 2003-01-20 2004-08-12 Daio Paper Corp Method of fiber-laminating absorber

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013530752A (en) * 2010-06-09 2013-08-01 ザ プロクター アンド ギャンブル カンパニー Apparatus and method for holding and releasing solid material
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