WO2010109988A1 - 吸収体の製造装置及び製造方法 - Google Patents
吸収体の製造装置及び製造方法 Download PDFInfo
- Publication number
- WO2010109988A1 WO2010109988A1 PCT/JP2010/052434 JP2010052434W WO2010109988A1 WO 2010109988 A1 WO2010109988 A1 WO 2010109988A1 JP 2010052434 W JP2010052434 W JP 2010052434W WO 2010109988 A1 WO2010109988 A1 WO 2010109988A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- closed space
- width direction
- duct
- suction
- opening
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 72
- 230000002745 absorbent Effects 0.000 title claims abstract description 58
- 239000002250 absorbent Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title description 3
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000000638 solvent extraction Methods 0.000 claims abstract description 9
- 239000006096 absorbing agent Substances 0.000 claims description 48
- 238000000465 moulding Methods 0.000 claims description 43
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 238000010030 laminating Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 description 54
- 239000000835 fiber Substances 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 101710156159 50S ribosomal protein L21, chloroplastic Proteins 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
- A61F13/15658—Forming continuous, e.g. composite, fibrous webs, e.g. involving the application of pulverulent material on parts thereof
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
Definitions
- the present invention relates to an absorbent body manufacturing apparatus and manufacturing method for absorbent articles such as disposable diapers.
- Disposable diapers, sanitary napkins and the like are used as examples of absorbent articles that absorb excreted fluid such as urine and menstrual blood. These absorbent articles are provided with an absorbent body 1 formed by forming pulp fibers into a predetermined shape.
- FIG. 1A is a side view of the fiber stacking apparatus 10a shown in a partial cross-sectional view
- FIG. 1B is a cross-sectional view taken along the line BB in FIG. 1A.
- the fiber stacking apparatus 10a has a rotating drum 20 that rotates in the circumferential direction Dc.
- the opening at both ends in the width direction of the rotating drum 20 (the direction penetrating the paper surface of FIG. 1A) is covered and sealed by a pair of circular wall portions 25, 25, whereby the inner peripheral side of the rotating drum 20 is sealed.
- the negative pressure chamber S0 is partitioned.
- a molding die 21 is provided in a concave shape on the outer peripheral surface 20a of the rotary drum 20, and a plurality of intake holes 22 are formed in the bottom portion 21a of the molding die 21 to communicate the bottom portion 21a with the negative pressure chamber S0. Yes.
- a supply duct 31 that discharges the mixed air 3 in which the pulp fibers 2 are mixed is disposed opposite to the outer peripheral surface 20 a of the rotary drum 20.
- the molding die 21 passes through the position of the supply duct 31 as the rotary drum 20 rotates, the mixed air 3 discharged from the supply duct 31 is sucked into the bottom 21 a of the molding die 21. As a result, the pulp fiber 2 in the mixed air 3 is laminated in the mold 21 to form the absorbent body 1.
- Patent Document 1 discloses that a suction opening 43d at the pipe end of the intake duct 41 is formed in the negative pressure chamber S0 as shown by a two-dot chain line in FIG. 1B in order to suppress the bias in the suction pressure distribution in the width direction. It is disclosed that the suction pressure distribution in the width direction is adjusted by projecting inwardly and adjusting the projecting length Ld.
- the protruding length Ld that can make the suction pressure distribution in the width direction uniform varies depending on the production conditions such as the target basis weight (g / m 2 ) of the absorbent body 1 and the rotational speed of the rotary drum 20. Therefore, every time the production conditions are changed, the protrusion length of the intake duct 41 must be adjusted, which is troublesome.
- An object of the present invention is to provide a manufacturing apparatus and a manufacturing method for an absorbent body.
- the main invention for achieving the above object is: A molding die member comprising a molding die formed indented on a predetermined surface, and moving the molding die along a first direction intersecting a width direction of the predetermined surface; A supply duct that is disposed at a predetermined position in the first direction and supplies a gas containing a liquid absorbent material from a supply opening toward the predetermined surface; A closed space partitioning member that is provided at a position opposite to the supply opening with the predetermined surface interposed therebetween, and that partitions the closed space in cooperation with the predetermined surface; An intake duct for sucking the gas in the closed space from the suction opening in order to make negative pressure in the closed space; When the molding die passes the position of the supply opening, the gas in the supply duct is sucked into the closed space from the suction hole at the bottom of the molding die, and the liquid absorbent material in the gas is An absorber manufacturing apparatus for forming an absorber by laminating in a mold, The suction opening of the intake duct is disposed to face the pre
- a molding die member comprising a molding die formed indented on a predetermined surface, and moving the molding die along a first direction intersecting a width direction of the predetermined surface;
- a supply duct that is disposed at a predetermined position in the first direction and supplies a gas containing a liquid absorbent material from a supply opening toward the predetermined surface;
- a closed space partitioning member that is provided at a position opposite to the supply opening with the predetermined surface interposed therebetween, and that partitions the closed space in cooperation with the predetermined surface; Preparing an intake duct for sucking the gas in the closed space from the suction opening in order to make the inside of the closed space have a negative pressure;
- FIG. 1A is a side view showing a conventional fiber stacking apparatus 1a in partial cross-sectional view
- FIG. 1B is a cross-sectional view taken along line BB in FIG. 1A
- FIG. 2A is a central longitudinal cross-sectional view of a manufacturing apparatus 10b for an absorbent body 1 according to a reference example
- FIG. 2B is a cross-sectional view taken along line BB in FIG. 2A.
- It is a perspective view showing typically manufacturing device 10 of absorber 1 concerning a 1st embodiment.
- It is BB sectional drawing in FIG. 3A.
- It is CC sectional drawing in FIG. 3B.
- FIG. 4 is a schematic perspective view of an intake duct 50 having a throttle portion 59.
- FIG. It is a perspective schematic diagram of the manufacturing apparatus 10c of the absorber 1 which concerns on 2nd Embodiment. It is a width direction center longitudinal cross-sectional view of the manufacturing apparatus 10c.
- a molding die member comprising a molding die formed indented on a predetermined surface, and moving the molding die along a first direction intersecting a width direction of the predetermined surface;
- a supply duct that is disposed at a predetermined position in the first direction and supplies a gas containing a liquid absorbent material from a supply opening toward the predetermined surface;
- a closed space partitioning member that is provided at a position opposite to the supply opening with the predetermined surface interposed therebetween, and that partitions the closed space in cooperation with the predetermined surface;
- An intake duct for sucking the gas in the closed space from the suction opening in order to make negative pressure in the closed space;
- the central axis direction of the part of the intake duct has a component parallel to the moving direction of the mold at the central position of the suction opening.
- the suction opening faces the predetermined surface provided with the mold. Therefore, between the part and the suction opening, a bent path is formed in which the central axis direction of the pipe is bent in a virtual plane intersecting the width direction. .
- the deviation in the width direction is converted into a suction pressure distribution deviation in the moving direction by the bending path, and the suction opening. It will be transmitted to the part.
- the deviation in the width direction is reduced, and as a result, the suction pressure distribution in the width direction in the mold is made uniform.
- An apparatus for manufacturing such an absorber A negative pressure source outside the closed space;
- the negative pressure source is connected to the part from the width direction via a conduit; It is desirable that a bent path formed by bending the central axis direction of the pipe line in a virtual plane intersecting the width direction is interposed between the part and the suction opening.
- the bias in the suction pressure distribution in the width direction that may occur in the part is converted to the bias in the moving direction by the bending path and transmitted to the suction opening, Thereby, the deviation in the width direction is reduced. Therefore, the suction pressure distribution in the width direction in the mold is made uniform.
- the first direction is orthogonal to the width direction, It is desirable that a bent path formed by bending the central axis direction of the pipe line in a virtual plane orthogonal to the width direction is interposed between the part and the suction opening.
- the bias in the suction pressure distribution in the width direction that may occur in the part is caused by the bending path that is bent in a virtual plane parallel to the movement direction. And is transmitted to the suction opening, whereby the deviation in the width direction is reduced. Therefore, the suction pressure distribution in the width direction in the mold is made uniform.
- An apparatus for manufacturing such an absorber It is desirable that the central axis direction of the portion of the intake duct between the bent path and the suction opening does not have the width direction component. According to such an absorber manufacturing apparatus, it is possible to maintain the suction pressure distribution in which the deviation in the width direction is reduced.
- the partial central axis direction does not have the width direction component.
- the partial central axis direction does not have a width direction component, so that it is possible to prevent the bias in the suction pressure distribution in the width direction from being promoted.
- An apparatus for manufacturing such an absorber A negative pressure source outside the closed space;
- the negative pressure source is connected to the part from the width direction via a pipeline,
- the part is formed to extend in a direction parallel to the moving direction,
- the part is connected to the duct part having the suction opening from a direction parallel to the moving direction;
- the central axis direction of the duct portion does not have the width direction component.
- the part is formed to extend in a direction parallel to the moving direction, and from the moving direction with respect to the duct portion having the suction opening. Further, the central axis direction of the duct portion has no width direction component. Therefore, the suction pressure distribution in the width direction in the mold is surely made uniform.
- the closed space has a plurality of positions along the first direction in which the intake duct can be installed facing the supply opening. It is desirable that the suction opening of the intake duct is disposed at least at the most upstream position in the first direction among the plurality of installable positions. According to such a manufacturing apparatus for an absorbent body, the intake duct can be most effectively used to ensure uniform stacking distribution in the width direction of the absorbent body.
- the mold member is a rotating drum that continuously rotates with the circumferential direction as the first direction
- the molding die is formed in a concave shape at a predetermined pitch in the circumferential direction on the outer peripheral surface of the rotating drum as the predetermined surface
- the closed space partition member has a pair of circular wall portions that cover both end openings in the width direction of the rotating drum, and the closed space is partitioned on the inner peripheral side of the rotating drum.
- An apparatus for manufacturing such an absorber It is desirable that a constricted portion that narrows the pipe line in the width direction is provided between the part and the suction opening. According to such an apparatus for manufacturing an absorbent body, the unevenness in the width direction of the suction pressure distribution is leveled and reduced by the throttle portion, whereby the suction pressure distribution in the width direction in the mold is made more uniform.
- An apparatus for manufacturing such an absorber It is desirable that the suction opening is disposed to face the supply opening of the supply duct with the predetermined surface interposed therebetween. According to such a manufacturing apparatus for an absorbent body, the action of uniforming the suction pressure distribution in the width direction in the suction opening portion more directly affects the laminate distribution of the absorbent body in the mold, As a result, the stack distribution in the width direction of the absorber is reliably uniformized.
- a molding die member comprising a molding die formed indented on a predetermined surface, and moving the molding die along a first direction intersecting a width direction of the predetermined surface;
- a supply duct that is disposed at a predetermined position in the first direction and supplies a gas containing a liquid absorbent material from a supply opening toward the predetermined surface;
- a closed space partitioning member that is provided at a position opposite to the supply opening with the predetermined surface interposed therebetween, and that partitions the closed space in cooperation with the predetermined surface; Preparing an intake duct for sucking the gas in the closed space from the suction opening in order to make the inside of the closed space have a negative pressure;
- the central axis direction of the part of the intake duct has a component parallel to the moving direction of the mold at the central position of the suction opening.
- the suction opening faces the predetermined surface provided with the mold. Therefore, between the part and the suction opening, a bent path is formed in which the central axis direction of the pipe is bent in a virtual plane intersecting the width direction. .
- the bias in the width direction is converted into a bias in the suction pressure distribution in the moving direction by the bending path, so that the suction opening It will be transmitted to the part.
- the deviation in the width direction is reduced, and as a result, the suction pressure distribution in the width direction in the mold is made uniform.
- FIG. 2A is a central longitudinal cross-sectional view of a manufacturing apparatus 10b for an absorbent body 1 according to a reference example
- FIG. 2B is a cross-sectional view taken along line BB in FIG. 2A.
- the manufacturing apparatus 10b of the absorbent body 1 is a so-called fiber stacking apparatus that forms the absorbent body 1 by laminating pulp fibers 2 as a liquid absorbent material. That is, as its main configuration, (1) a rotating drum 20 (corresponding to a mold member) that continuously rotates in the circumferential direction Dc (for example, clockwise) around the horizontal axis C20 as a rotation center, and (2) the rotating drum 20 Discharge and supply mixed air 3 (corresponding to gas) containing pulp fibers 2 (corresponding to a liquid absorbent material) from a supply opening 31a arranged at a predetermined position in the circumferential direction Dc toward the outer peripheral surface 20a of the rotary drum 20 And a supply duct 31.
- the circumferential direction Dc of the rotating drum 20 is simply referred to as “circumferential direction Dc”, and the direction along the horizontal axis C20 of the rotating drum 20 (the direction penetrating the paper surface of FIG. 2A) is referred to as the “width direction”. "Or” left-right direction ". Therefore, the width direction and the circumferential direction Dc are orthogonal to each other.
- the rotary drum 20 has a cylindrical member that rotates around the horizontal axis C20 as a main body.
- the opening in the width direction of the rotating drum 20 is covered and closed by a pair of circular wall portions 25 and 25 (corresponding to a closed space partition member).
- a concentric cylindrical partition wall 26 is provided, whereby a donut-shaped closed space S is defined on the inner peripheral side of the rotary drum 20.
- An outer peripheral surface 20a (corresponding to a predetermined surface) of the rotating drum 20 is parallel to the width direction, and a concave mold 21 corresponding to the shape of the absorbent body 1 to be molded is formed on the outer peripheral surface 20a. Is intermittently provided at a predetermined pitch in the circumferential direction Dc.
- the bottom 21a of each mold 21 is also formed in parallel with the width direction, and a number of intake holes 22 are formed in the bottom 21a.
- the inside of the mold 21 and the closed space S are ventilated. Communication is possible.
- the closed space S in the rotary drum 20 is divided into zones in the circumferential direction Dc by the partition walls 27 as shown in FIG. 2A, and an intake duct 41 is connected to the first zone Z1 shown in the figure.
- the air in the first zone Z is sucked out from the suction opening 43a of the intake duct 41, and the first zone Z1 is maintained in a negative pressure state that is lower than the outside air. Therefore, when the molding die 21 moves on the position of the outer peripheral surface 20a corresponding to the first zone Z1, the air is sucked from the intake hole 22 of the molding die 21.
- the intake duct 41 is not connected to the second zone Z2, and if the mold 21 enters the position of the outer peripheral surface 20a corresponding to the second zone Z2, the intake air of the mold 21 is almost Stopped.
- the supply opening 31a of the supply duct 31 is disposed in the first zone Z1, and the mold release position Pf for releasing the absorber 1 from the mold 21 is set in the second zone Z2.
- the supply duct 31 is a tubular member having a substantially rectangular cross section disposed substantially above the rotary drum 20.
- the supply opening 31a at the lower end of the supply duct 31 covers a substantially upper portion of the outer peripheral surface 20a of the rotary drum 20 over a predetermined range, and is crushed from the upper end (not shown) of the supply duct 31.
- the pulp fiber 2 pulverized by a container (not shown) or the like is supplied on the air flow 3, whereby mixed air 3 mixed with the pulp fiber 2 enters the supply duct 31 at the lower supply opening 31 a. Is flowing.
- a polymer charging pipe (not shown) may be provided in the supply duct 31, and the superabsorbent polymer may be discharged and injected toward the outer peripheral surface 20a.
- the absorbent body 1 is formed on the sheet-like member 4 such as a nonwoven fabric as follows. First, as shown in FIG. 2A, at the position Ps upstream of the supply duct 31 in the circumferential direction Dc, the sheet-like member 4 is continuously supplied to the outer peripheral surface 20a of the rotary drum 20 to the outer peripheral surface 20a. Wrapped. Then, the sheet-like member 4 on the outer peripheral surface 20a is moved downstream in the circumferential direction Dc as the rotary drum 20 rotates without sliding on the outer peripheral surface 20a.
- the mixed air 3 discharged and supplied from the supply opening 31 a becomes the intake hole 22 of the molding die 21. Sucked into.
- the passage of the pulp fibers 2 through the air intake holes 22 is restricted by the sheet-like member 4 on the outer peripheral surface 20a, whereby the portion of the sheet-like member 4 that contacts the bottom portion 21a of the mold 21 is
- the absorbent fiber 1 is formed by laminating the pulp fibers 2 in the mixed air 3.
- the sheet-like member 4 is moved to the outer periphery by the roller 24 disposed at the same position Pf.
- the absorber 1 is separated from the surface 20 a, whereby the absorber 1 is released from the mold 21 and placed on the sheet-like member 4.
- the absorber 1 is shape
- the intake duct 41 for bringing the first zone Z1 of the rotating drum 20 into the negative pressure state generally, a pipe material having an open tube end 43a is used, and the tube axis direction C41 is defined as the width direction of the rotating drum 20.
- the suction opening 43a which is the pipe end 43a of the intake duct 41, is arranged flush with the inner wall surface 25a of the circular wall 25.
- the suction pressure distribution in the mold 21 is biased in the width direction. That is, in the example of FIG. 2B, the suction pressure in the left part in the mold 21 is increased, and the suction pressure in the right part is decreased.
- the laminate distribution of the absorbent body 1 has a deviation in the width direction, such that the left side portion of the absorbent body 1 laminated in the mold 21 is thick and the right side portion is thin. Therefore, in order to prevent this, the structure of the intake duct 50 is devised in the first embodiment described later.
- FIG. 3A is a perspective view schematically showing the manufacturing apparatus 10
- FIG. 3B is a cross-sectional view taken along the line BB in FIG. 3A
- FIG. 3C is a cross-sectional view taken along the line CC in FIG. 3B.
- the same components as those in the above-described reference example are denoted by the same reference numerals, and the description thereof is omitted.
- the structure other than the intake duct 50, such as the rotating drum 20, etc. is shown with the dashed-two dotted line.
- the intake duct 50 includes a rotary drum outer duct portion 51 disposed outside the closed space S related to the rotary drum 20, and the closed space S.
- a rotating drum internal duct portion 52 to be accommodated.
- the rotating drum outer duct portion 51 is connected to a negative pressure source (not shown) outside the rotating drum 20 through an appropriate pipe line.
- the negative pressure source is, for example, a blower or a vacuum pump.
- the duct portion 52 in the rotating drum includes a suction box 53 having a suction opening 53a disposed opposite to the supply opening 31a of the supply duct 31 via the outer peripheral surface 20a of the rotary drum 20, and a suction opening.
- a moving direction duct portion 55 (corresponding to “a part” in the claims) connected to the suction box 53 from a direction parallel to the moving direction Ds of the mold 21 at the center position C53a of 53a, and the moving direction duct portion 55 And a width-direction duct portion 57 connected from the width direction. Note that one pipe end 57 a of the width-direction duct portion 57 protrudes outside the rotating drum 20 and is connected to the above-described rotating drum outer duct portion 51.
- the suction box 53 has its pipe axis direction (which is the direction of the central axis of the pipe line, that is, it can be said that the center position of each pipe cross section is connected to the direction along the pipe line) substantially in the vertical direction. It is a tubular member, and the upper pipe end is used as the suction opening 53a.
- the cross-sectional shape of the pipe (the shape of the plane with the pipe axis direction being the normal direction) is substantially rectangular, and the dimension in the width direction of the rectangular cross-section is substantially constant over the entire length in the vertical direction, but the moving direction The dimension of Ds decreases from the upper end toward the lower end.
- the pipe line of the suction box 53 has a substantially trumpet shape in which the pipe cross-sectional area on the lower end side is narrower than the upper end side. Further, in order to make the suction pressure distribution in the mold 21 uniform in the width direction, the center position C53a of the suction opening 53a is substantially aligned with the center line CL21 in the width direction of the mold 21 (see FIG. 3B). reference).
- the tube axis direction of the suction box 53 should not have a width direction component, that is, it should not be bent or inclined in the width direction. In this example, it does not bend or tilt in the width direction. Thereby, the promotion of the deviation in the width direction of the suction pressure distribution in the suction box 53 is effectively prevented.
- the moving direction duct portion 55 is an appropriate tubular member, and here, a square pipe having a rectangular cross section is used.
- the tube axis direction is substantially parallel to the moving direction Ds of the mold 21 at the center position C53a of the suction opening 53a of the suction box 53.
- One pipe end 55a is connected to the lower end of the suction box 53 from a direction parallel to the moving direction Ds, and the other pipe end 55b is closed by a suitable lid member 55c.
- a width direction duct portion 57 to be described later is connected to the vicinity of the other pipe end 55b.
- the tube axis direction of the moving direction duct portion 55 should not have a width direction component, that is, it should not be bent or inclined in the width direction. In this example, it does not bend or tilt in the width direction. Thereby, the promotion of the deviation in the width direction of the suction pressure distribution in the moving direction duct portion 55 is effectively prevented.
- the width direction duct portion 57 is an appropriate tubular member, and here, a round pipe having a circular cross section is used.
- the tube axis direction is substantially parallel to the width direction.
- one pipe end 57b is connected from the width direction to the vicinity of the other pipe end 55b of the moving direction duct portion 55, and the remaining one pipe end 57a protrudes out of the rotary drum 20 and rotates.
- the duct portion 52 in the rotating drum is connected to the negative pressure source and is in a state capable of intake.
- the tube axis direction of the width direction duct portion 57 faces the width direction. Therefore, as shown in the comparative example of FIG. 4, when the width direction duct portion 57 is directly connected to the suction box 53, the suction pressure distribution in the suction opening 53a is in the width direction as in the above reference example. Will have a bias.
- a moving direction duct portion 55 is interposed between the suction box 53 and the width direction duct portion 57. Further, the tube direction of the moving direction duct portion 55 faces the direction parallel to the moving direction Ds of the mold 21 at the center position C53a of the suction opening 53a of the suction box 53, and the moving direction duct portion 55 Is connected to the suction box 53 from a direction parallel to the moving direction Ds. As a result, a bent path 58 is formed between the suction box 53 and the moving direction duct portion 55 by bending the tube axis direction in a virtual plane orthogonal to the width direction.
- the bending path 58 converts the bias in the suction pressure distribution in the width direction to the bias in the moving direction Ds and transmits it to the suction opening 53a. That is, the suction pressure distribution in the suction box 53 is biased in the moving direction Ds as shown in FIGS. 3A and 3C, but instead the bias in the width direction is relaxed (see FIGS. 3A and 3B). reference). As a result, the suction pressure distribution in the width direction in the suction opening 53a of the suction box 53 is in a state in which the deviation in the width direction is small (see FIGS. 3A and 3B).
- the details are as follows.
- the bias in the suction pressure distribution in the suction opening 53 a of the suction box 53 occurs based on the connection position of the duct portion in the suction box 53.
- the width-direction duct portion 57 when the width-direction duct portion 57 is directly connected to the suction box 53 as in the comparative example of FIG. 4 described above, the width-direction duct portion 57 extends along the width direction.
- the portion 57 is connected to one wall portion 53s (left wall portion 53s in the illustrated example) of the wall portions 53s, 53s at both ends in the width direction of the suction box 53.
- the distance from the connection position Pj to the right end edge 53eR in the width direction of the suction opening 53a is different from the distance to the left end edge 53eL.
- a deviation in the width direction occurs.
- the moving direction duct portion 55 is connected to one of the wall portions 53 u and 53 d at both ends of the suction box 53 in the moving direction Ds. Then, as shown in FIG. 3B, the distance from the connection position Pj to the left end edge 53eL in the width direction of the suction opening 53a and the distance to the right end edge 53eR are equal to each other. The unevenness in the width direction is alleviated.
- the distance from the connection position Pj to the upstream edge 53eu in the moving direction Ds in the suction opening 53a is different from the distance to the downstream edge 53ed.
- the suction pressure distribution is biased in the moving direction Ds.
- the deviation in the width direction is alleviated, but instead, the deviation in the movement direction Ds is enlarged.
- the bias in the suction pressure distribution in the width direction is converted into the bias in the suction pressure distribution in the moving direction Ds and transmitted to the suction opening 53 a of the suction box 53.
- the width-direction duct portion 57 is connected to the suction box 53 via a bending path 58 in which the tube axis direction bends in the virtual plane, and more specifically, the suction pressure distribution is somewhat inhomogeneous. However, it is only necessary that the width-direction duct portion 57 is connected to the suction box 53 via a bent path 58 whose tube axis direction is bent in a virtual plane intersecting the width direction.
- the bias in the moving direction Ds of the suction pressure distribution as shown in FIG. 3C does not cause any problem with respect to the lamination of the absorber 1. This is because any part in the movement direction Ds in the mold 21 passes through each point of the suction pressure distribution in the movement direction Ds in the same way. Therefore, there is almost no influence on the stack thickness distribution in the moving direction Ds.
- the bending angle ⁇ of the bending path 58 shown in FIG. 3C is larger than 0 ° and smaller than 180 °. It is selected from a range, preferably selected from a range greater than 0 ° and less than or equal to 90 °, and more preferably selected from a range greater than 0 ° and less than 90 °. In the example of FIG. 3C, the bending angle ⁇ is 90 °.
- center position of the bending path 58 in the width direction is substantially aligned with the center position C53a of the suction opening 53a of the suction box 53, thereby effectively preventing the bias of the suction pressure distribution in the width direction. Is done.
- a constricted portion 59 is provided in a portion between the suction opening 53 a of the suction box 53 and the moving direction duct portion 55 to locally extend in the width direction. It is good to squeeze the pipeline. That is, it is preferable that the pipe line of the throttle part 59 is narrower in the width direction than a part adjacent to the throttle part 59 in the pipe line direction. In this way, the uniform suction pressure distribution in the width direction is further reduced by the narrowed portion 58 in the width direction by the narrowed portion 59, thereby reducing the suction opening 53 a of the suction box 53.
- the suction pressure distribution in the width direction can be made more uniform.
- the pipe line for example, it can be narrowed so as to have a cross-sectional shape that is axisymmetric with respect to the center line in the width direction, and in this way, induction of the bias in the width direction of the suction pressure distribution is induced. Can be prevented.
- the restricting portion 59 in addition to the configuration of restricting the tube wall itself of the suction box 53 as shown in FIG. 5, for example, a damper (not shown) or a plate material or the like is placed in the duct of the suction box 53 of FIG.
- a damper (not shown) or a plate material or the like is placed in the duct of the suction box 53 of FIG.
- it may be arranged as a member, or a valve whose opening degree can be adjusted, such as a butterfly valve, is arranged in the pipeline.
- the latter valve configuration has an advantage that the degree of restriction in the width direction can be easily adjusted.
- the restricting portion 59 restricts the pipe line only in the width direction.
- the restricting portion 59 may be further restricted in a direction parallel to the moving direction Ds.
- FIG. 6A is a schematic perspective view of the manufacturing apparatus 10c
- FIG. 6B is a center longitudinal sectional view of the manufacturing apparatus 10c in the width direction.
- the main differences from the first embodiment described above are two points, that is, a plurality of intake ducts 60 and 41 are provided and a shape of the intake duct 60 is different.
- Other configurations are generally the same as those of the first embodiment, and the same reference numerals are given to the same configurations, and the description thereof is omitted.
- the intake duct 60 according to the second embodiment is applied to only one of these, and the intake duct 41 of the reference example (FIGS. 2A and 2B) is applied to the remaining three places. ) Is used.
- the intake duct 60 according to the second embodiment requires a larger installation space than the intake duct 41 of the reference example. Therefore, due to space restrictions, the second embodiment is used for all installable positions. This is because such an intake duct 60 cannot be applied.
- the intake duct 60 of the second embodiment it is desirable to install the intake duct 60 of the second embodiment at the most installable position on the most upstream side in the circumferential direction Dc within the range where the supply opening 31a is opposed, and further on the installation space. If possible, it is better to expand the installation target range to the adjacent installable positions downstream. This is because the influence of the suction pressure distribution on the stacking distribution of the absorber 1 is larger on the initial side than on the latter side of the stacking. That is, in the later stage, the lamination progresses to some extent and the lamination thickness of the absorber 1 also increases. However, in that case, the pressure loss due to the laminated absorber 1 increases, and as a result, there is a suction pressure distribution in the width direction. This is because the effect on the stack is slowed.
- the intake duct 60 also has a rotating drum inner duct portion 62 accommodated in the rotating drum 20 as in the first embodiment.
- the rotating drum inner duct portion 62 includes a suction box 63 having a suction opening 63a disposed opposite to the supply opening 31a via the outer peripheral surface 20a of the rotating drum 20, and the suction from the lower side in the vertical direction. It has the vertical direction duct part 65 connected to the box 63, and the width direction duct part 67 connected to the vertical direction duct part 65 from the width direction.
- the suction box 63 is a tubular member whose tube axis direction is inclined in the movement direction Ds described later by, for example, 30 ° from above the vertical direction, and the upper tube end serves as a suction opening 63a as in the first embodiment. used.
- the cross-sectional shape of the pipe is substantially rectangular, and the rectangular cross-section is maintained in the same shape over the entire length.
- the moving direction Ds of the mold 21 at the center position C63a of the suction opening 63a is directed in a direction inclined slightly upward from the horizontal.
- the vertical duct portion 65 is a tubular member with the tube axis direction facing the vertical direction, and here, a rectangular pipe with a rectangular cross section is used.
- the upper pipe end 65a is abutted and connected to the lower end 63b of the suction box 63 from below, and the lower pipe end 65b is closed by an appropriate lid member 65c.
- a width direction duct portion 67 is connected to the vicinity of the lower pipe end 65b.
- the width direction duct portion 67 is a round pipe in which the tube axis direction C67 is along the width direction, like the width direction duct portion 57 of the first embodiment.
- One pipe end 67b is connected to the vicinity of the lower pipe end 65b of the vertical duct portion 65 from the width direction, and the remaining one pipe end (not shown) is outside the rotating drum 20. It protrudes and is connected to a rotating drum outer duct portion (not shown). Thereby, the duct part 62 in a rotating drum is connected with a negative pressure source, and will be in an inhalable state.
- Such a rotating drum internal duct portion 62 has a bent path 68 at the connecting position between the vertical duct portion 65 and the suction box 63, that is, a bending angle of 150 ° in the bent path 68 based on the aforementioned 30 °. It is bent at ⁇ (the included angle ⁇ between the tube axis C65 of the vertical duct portion 65 and the suction box 63). This bend is a bend in a virtual plane orthogonal to the width direction. Therefore, as in the first embodiment described above, the deviation in the width direction of the suction pressure distribution caused by the width-direction duct portion 67 is converted to the deviation in the movement direction Ds by the bent path 68 and alleviated.
- the suction pressure distribution in the opening 63a is made uniform in the width direction.
- the rotary drum 20 is exemplified as the mold member, but the present invention is not limited to this.
- a belt of a belt conveyor may be used as the mold member.
- the molding die 21 is dented on the belt surface (corresponding to a predetermined surface) of the belt, and a predetermined orbit is moved to the belt.
- the supply duct 31 is disposed at a predetermined position on the circuit track, and a closed space is formed in cooperation with the belt surface at a position opposite to the supply opening 31a of the supply duct 31 with the belt surface interposed therebetween.
- a closed space partition member for partitioning is provided.
- the closed space partition member is, for example, a substantially rectangular parallelepiped box from which the wall portion facing the belt surface is removed.
- the duct portion 52 in the intake duct 50 of FIG. 3A is accommodated in the closed space, and the duct portion 51 in the intake duct 50 is disposed outside the closed space.
- the portion of the intake duct 50 that is accommodated in the closed space S in the rotary drum 20 and the tube axis direction thereof is the movement of the mold 21 at the center position C53a of the suction opening 53a.
- the portion having a component parallel to the direction Ds (indicated as “part” in claim 1)
- the moving direction duct portion 55 whose tube axis direction is substantially parallel to the moving direction Ds is illustrated.
- the direction is not limited to this as long as the direction has a component parallel to the moving direction Ds.
- the tube axis direction may be slightly inclined from the direction parallel to the moving direction Ds.
- the pulp fiber 2 is exemplified as the liquid-absorbing material.
- any liquid absorption of the pulp fiber 2 or the like is possible as long as it has a liquid absorption capability and is mixed in the gas 3 and scattered.
- the material is not limited to the synthetic fiber, and other materials may be used.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Textile Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
所定面にへこんで形成された成形型を具備し、前記所定面の幅方向と交差する第1方向に沿って前記成形型を移動する成形型部材と、
前記第1方向の所定位置に配置されて、前記所定面に向けて供給開口部から液体吸収性素材を含む気体を供給する供給ダクトと、
前記所定面を挟んで前記供給開口部の反対側の位置に設けられ、前記所定面と協同して閉空間を区画する閉空間区画部材と、
前記閉空間内を負圧にすべく前記閉空間内の気体を、吸い込み用開口部から吸い込む吸気ダクトと、を備え、
前記成形型が前記供給開口部の位置を通過する際に、前記供給ダクトの気体を前記成形型の底部の吸気孔から前記閉空間へと吸い込ませて、前記気体中の液体吸収性素材を前記成形型内に積層させて吸収体を成形する吸収体の製造装置であって、
前記吸気ダクトの前記吸い込み用開口部は、前記閉空間内において前記所定面に対向して配置され、
前記吸気ダクトにおいて前記閉空間内に収容される部分の少なくとも一部は、その中心軸方向が、前記吸い込み用開口部の中心位置における前記成形型の移動方向と平行な成分を有することを特徴とする吸収体の製造装置である。
所定面にへこんで形成された成形型を具備し、前記所定面の幅方向と交差する第1方向に沿って前記成形型を移動する成形型部材と、
前記第1方向の所定位置に配置されて、前記所定面に向けて供給開口部から液体吸収性素材を含む気体を供給する供給ダクトと、
前記所定面を挟んで前記供給開口部の反対側の位置に設けられ、前記所定面と協同して閉空間を区画する閉空間区画部材と、
前記閉空間内を負圧にすべく前記閉空間内の気体を、吸い込み用開口部から吸い込む吸気ダクトと、を準備することと、
前記成形型が前記供給開口部の位置を通過する際に、前記供給ダクトの気体を前記成形型の底部の吸気孔から前記閉空間へと吸い込ませて、前記気体中の液体吸収性素材を前記成形型内に積層させて吸収体を成形することと、を有した吸収体の製造方法であって、
前記吸気ダクトの前記吸い込み用開口部は、前記閉空間内において前記所定面に対向して配置され、
前記吸気ダクトにおいて前記閉空間内に収容される部分の少なくとも一部は、その中心軸方向が、前記吸い込み用開口部の中心位置における前記成形型の移動方向と平行な成分を有することを特徴とする吸収体の製造方法である。
前記第1方向の所定位置に配置されて、前記所定面に向けて供給開口部から液体吸収性素材を含む気体を供給する供給ダクトと、
前記所定面を挟んで前記供給開口部の反対側の位置に設けられ、前記所定面と協同して閉空間を区画する閉空間区画部材と、
前記閉空間内を負圧にすべく前記閉空間内の気体を、吸い込み用開口部から吸い込む吸気ダクトと、を備え、
前記成形型が前記供給開口部の位置を通過する際に、前記供給ダクトの気体を前記成形型の底部の吸気孔から前記閉空間へと吸い込ませて、前記気体中の液体吸収性素材を前記成形型内に積層させて吸収体を成形する吸収体の製造装置であって、
前記吸気ダクトの前記吸い込み用開口部は、前記閉空間内において前記所定面に対向して配置され、
前記吸気ダクトにおいて前記閉空間内に収容される部分の少なくとも一部は、その中心軸方向が、前記吸い込み用開口部の中心位置における前記成形型の移動方向と平行な成分を有することを特徴とする吸収体の製造装置。
すると、仮に、前記一部に吸い込み圧力分布の幅方向の偏りが有る場合でも、前記屈曲路により、前記幅方向の偏りは、前記移動方向の吸い込み圧力分布の偏りに変換されて前記吸い込み用開口部に伝達されることになる。これにより幅方向の偏りは軽減されて、結果、成形型における幅方向の吸い込み圧力分布は均一化される。
前記閉空間の外に負圧源を有し、
前記負圧源を、管路を介して前記一部に前記幅方向から接続し、
前記一部と前記吸い込み用開口部との間には、前記幅方向と交差する仮想平面内において管路の中心軸方向が屈曲されてなる屈曲路が介装されているのが望ましい。
このような吸収体の製造装置によれば、前記一部に生じ得る幅方向の吸い込み圧力分布の偏りは、前記屈曲路によって前記移動方向の偏りに変換されて前記吸い込み用開口部に伝達され、これにより幅方向の偏りは軽減される。よって、成形型における幅方向の吸い込み圧力分布は均一化される。
前記第1方向は、前記幅方向と直交し、
前記一部と前記吸い込み用開口部との間には、前記幅方向と直交する仮想平面内において管路の中心軸方向が屈曲されてなる屈曲路が介装されているのが望ましい。
このような吸収体の製造装置によれば、前記一部に生じ得る幅方向の吸い込み圧力分布の偏りは、前記移動方向と平行な仮想平面内で屈曲する前記屈曲路によって、前記移動方向の偏りに変換されて前記吸い込み用開口部に伝達され、これにより幅方向の偏りは軽減される。よって、成形型における幅方向の吸い込み圧力分布は均一化される。
前記屈曲路と前記吸い込み用開口部との間の前記吸気ダクトの部分の中心軸方向は、前記幅方向成分を有していないのが望ましい。
このような吸収体の製造装置によれば、幅方向の偏りが減じられた吸い込み圧力分布を、維持可能となる。
前記一部の中心軸方向は、前記幅方向成分を有していないのが望ましい。
このような吸収体の製造装置によれば、前記一部の中心軸方向は、幅方向成分を有さないので、幅方向の吸い込み圧力分布の偏りの助長を防止できる。
前記閉空間の外に負圧源を有し、
前記負圧源は、管路を介して前記一部に前記幅方向から接続し、
前記一部は、前記移動方向に平行な方向に延長して形成され、
前記一部は、前記吸い込み用開口部を有するダクト部分に前記移動方向に平行な方向から接続し、
前記ダクト部分の中心軸方向は前記幅方向成分を有していないのが望ましい。
このような吸収体の製造装置によれば、前記一部は、前記移動方向に平行な方向に延長して形成されているとともに、前記吸い込み用開口部を有するダクト部分に対して前記移動方向から接続し、更に、前記ダクト部分の中心軸方向は、幅方向成分を有していない。よって、成形型内の幅方向の吸い込み圧力分布は確実に均一化される。
前記閉空間は、前記吸気ダクトを前記供給開口部に対向させて設置可能な位置を、前記第1方向に沿って複数有し、
複数の前記設置可能な位置のうちで、少なくとも前記第1方向の最上流側の位置に対して、前記吸気ダクトの前記吸い込み用開口部が配置されているのが望ましい。
このような吸収体の製造装置によれば、前記吸気ダクトを最も効果的に使用して、吸収体の幅方向の積層分布の均一化を確実に図ることができる。
前記成形型部材は、周方向を前記第1方向として連続回転する回転ドラムであり、
前記成形型は、前記所定面としての前記回転ドラムの外周面に前記周方向に所定ピッチで凹状にへこんで形成され、
前記閉空間区画部材として、前記回転ドラムの前記幅方向の両端開口を覆う一対の円形壁部を有し、前記回転ドラムの内周側に前記閉空間が区画されているのが望ましい。
このような吸収体の製造装置によれば、本願発明が奏する作用効果を効果的に享受することができる。
前記一部と前記吸い込み用開口部との間には、前記幅方向に管路を絞った絞り部が設けられているのが望ましい。
このような吸収体の製造装置によれば、吸い込み圧力分布の幅方向の偏りは、絞り部によって均されて縮小され、これにより、成形型における幅方向の吸い込み圧力分布はより均一化される。
前記吸い込み用開口部は、前記所定面を挟んで、前記供給ダクトの前記供給開口部に対向して配置されているのが望ましい。
このような吸収体の製造装置によれば、前記吸い込み用開口部における吸い込み圧力分布の幅方向の均一化作用が、より直接的に成形型内の吸収体の積層分布に影響するようになり、結果、吸収体の幅方向の積層分布が確実に均一化される。
所定面にへこんで形成された成形型を具備し、前記所定面の幅方向と交差する第1方向に沿って前記成形型を移動する成形型部材と、
前記第1方向の所定位置に配置されて、前記所定面に向けて供給開口部から液体吸収性素材を含む気体を供給する供給ダクトと、
前記所定面を挟んで前記供給開口部の反対側の位置に設けられ、前記所定面と協同して閉空間を区画する閉空間区画部材と、
前記閉空間内を負圧にすべく前記閉空間内の気体を、吸い込み用開口部から吸い込む吸気ダクトと、を準備することと、
前記成形型が前記供給開口部の位置を通過する際に、前記供給ダクトの気体を前記成形型の底部の吸気孔から前記閉空間へと吸い込ませて、前記気体中の液体吸収性素材を前記成形型内に積層させて吸収体を成形することと、を有した吸収体の製造方法であって、
前記吸気ダクトの前記吸い込み用開口部は、前記閉空間内において前記所定面に対向して配置され、
前記吸気ダクトにおいて前記閉空間内に収容される部分の少なくとも一部は、その中心軸方向が、前記吸い込み用開口部の中心位置における前記成形型の移動方向と平行な成分を有することを特徴とする吸収体の製造方法。
すると、仮に、前記一部に吸い込み圧力分布の幅方向の偏りが有る場合でも、前記屈曲路により、前記幅方向の偏りは、前記移動方向の吸い込み圧力分布の偏りに変換されて前記吸い込み用開口部に伝達されることになる。これにより幅方向の偏りは軽減されて、結果、成形型における幅方向の吸い込み圧力分布は均一化される。
図2Aは、参考例に係る吸収体1の製造装置10bの中心縦断面図であり、図2Bは、図2A中のB-B断面図である。
図3A乃至図3Cは、第1実施形態に係る吸収体1の製造装置10の説明図である。図3Aは、同製造装置10を模式的に示す斜視図であり、図3Bは図3A中のB-B断面図であり、図3Cは図3B中のC―C断面図である。なお、これらの図では、上述の参考例と同一の構成については同一の符号を付して示し、その説明については省略する。また、図3Aについては、図の錯綜を防ぐべく回転ドラム20等といった、吸気ダクト50以外の構成を二点鎖線で示している。
図6A及び図6Bは、第2実施形態に係る吸収体1の製造装置10cの説明図である。図6Aは同製造装置10cの斜視模式図であり、図6Bは同製造装置10cの幅方向中心縦断面図である。
以上、本発明の実施形態について説明したが、本発明は、かかる実施形態に限定されるものではなく、以下に示すような変形が可能である。
3 混入気体(気体)、4 シート状部材、10 製造装置、10b 製造装置、10c 製造装置、20 回転ドラム(成形型部材)、20a 外周面(所定面)、21 成形型、21a 底部、22 吸気孔、24 ローラ、25 円形壁部(閉空間区画部材)、25a 内壁面、26 円筒状隔壁、27 隔壁、31 供給ダクト、31a 供給開口部、41 吸気ダクト、43a 吸い込み用開口部、50 吸気ダクト、51 回転ドラム外ダクト部分、52 回転ドラム内ダクト部分、53 サクションボックス、53a 吸い込み用開口部、53d 壁部、53u 壁部、53s 壁部、53eL 左端縁、53eR 右端縁、53ed 下流端縁、53eu 上流端縁、55 移動方向ダクト部分(一部)、55a 管端、55b 管端、55c 蓋部材、57 幅方向ダクト部分、57a 管端、57b 管端、58 屈曲路、59 絞り部、60 吸気ダクト、62 回転ドラム内ダクト部分、63 サクションボックス、63a 吸い込み用開口部、63b 下端、65 鉛直方向ダクト部分(一部)、65a 管端、65b 管端、65c 蓋部材、67 幅方向ダクト部分、67b 管端、68 屈曲路、S 閉空間、Z1 第1ゾーン、Z2 第2ゾーン
Claims (11)
- 所定面にへこんで形成された成形型を具備し、前記所定面の幅方向と交差する第1方向に沿って前記成形型を移動する成形型部材と、
前記第1方向の所定位置に配置されて、前記所定面に向けて供給開口部から液体吸収性素材を含む気体を供給する供給ダクトと、
前記所定面を挟んで前記供給開口部の反対側の位置に設けられ、前記所定面と協同して閉空間を区画する閉空間区画部材と、
前記閉空間内を負圧にすべく前記閉空間内の気体を、吸い込み用開口部から吸い込む吸気ダクトと、を備え、
前記成形型が前記供給開口部の位置を通過する際に、前記供給ダクトの気体を前記成形型の底部の吸気孔から前記閉空間へと吸い込ませて、前記気体中の液体吸収性素材を前記成形型内に積層させて吸収体を成形する吸収体の製造装置であって、
前記吸気ダクトの前記吸い込み用開口部は、前記閉空間内において前記所定面に対向して配置され、
前記吸気ダクトにおいて前記閉空間内に収容される部分の少なくとも一部は、その中心軸方向が、前記吸い込み用開口部の中心位置における前記成形型の移動方向と平行な成分を有することを特徴とする吸収体の製造装置。 - 請求項1に記載の吸収体の製造装置であって、
前記閉空間の外に負圧源を有し、
前記負圧源を、管路を介して前記一部に前記幅方向から接続し、
前記一部と前記吸い込み用開口部との間には、前記幅方向と交差する仮想平面内において管路の中心軸方向が屈曲されてなる屈曲路が介装されていることを特徴とする吸収体の製造装置。 - 請求項2に記載の吸収体の製造装置であって、
前記第1方向は、前記幅方向と直交し、
前記一部と前記吸い込み用開口部との間には、前記幅方向と直交する仮想平面内において管路の中心軸方向が屈曲されてなる屈曲路が介装されていることを特徴とする吸収体の製造装置。 - 請求項2又は3に記載の吸収体の製造装置であって、
前記屈曲路と前記吸い込み用開口部との間の前記吸気ダクトの部分の中心軸方向は、前記幅方向成分を有していないことを特徴とする吸収体の製造装置。 - 請求項1乃至4の何れかに記載の吸収体の製造装置であって、
前記一部の中心軸方向は、前記幅方向成分を有していないことを特徴とする吸収体の製造装置。 - 請求項1乃至5の何れかに記載の吸収体の製造装置であって、
前記閉空間の外に負圧源を有し、
前記負圧源は、管路を介して前記一部に前記幅方向から接続し、
前記一部は、前記移動方向に平行な方向に延長して形成され、
前記一部は、前記吸い込み用開口部を有するダクト部分に前記移動方向に平行な方向から接続し、
前記ダクト部分の中心軸方向は前記幅方向成分を有していないことを特徴とする吸収体の製造装置。 - 請求項1乃至6の何れかに記載の吸収体の製造装置であって、
前記閉空間は、前記吸気ダクトを前記供給開口部に対向させて設置可能な位置を、前記第1方向に沿って複数有し、
複数の前記設置可能な位置のうちで、少なくとも前記第1方向の最上流側の位置に対して、前記吸気ダクトの前記吸い込み用開口部が配置されていることを特徴とする吸収体の製造装置。 - 請求項1乃至7の何れかに記載の吸収体の製造装置であって、
前記成形型部材は、周方向を前記第1方向として連続回転する回転ドラムであり、
前記成形型は、前記所定面としての前記回転ドラムの外周面に前記周方向に所定ピッチで凹状にへこんで形成され、
前記閉空間区画部材として、前記回転ドラムの前記幅方向の両端開口を覆う一対の円形壁部を有し、前記回転ドラムの内周側に前記閉空間が区画されていることを特徴とする吸収体の製造装置。 - 請求項1乃至8の何れかに記載の吸収体の製造装置であって、
前記一部と前記吸い込み用開口部との間には、前記幅方向に管路を絞った絞り部が設けられていることを特徴とする吸収体の製造装置。 - 請求項1乃至9の何れかに記載の吸収体の製造装置であって、
前記吸い込み用開口部は、前記所定面を挟んで、前記供給ダクトの前記供給開口部に対向して配置されていることを特徴とする吸収体の製造装置。 - 所定面にへこんで形成された成形型を具備し、前記所定面の幅方向と交差する第1方向に沿って前記成形型を移動する成形型部材と、
前記第1方向の所定位置に配置されて、前記所定面に向けて供給開口部から液体吸収性素材を含む気体を供給する供給ダクトと、
前記所定面を挟んで前記供給開口部の反対側の位置に設けられ、前記所定面と協同して閉空間を区画する閉空間区画部材と、
前記閉空間内を負圧にすべく前記閉空間内の気体を、吸い込み用開口部から吸い込む吸気ダクトと、を準備することと、
前記成形型が前記供給開口部の位置を通過する際に、前記供給ダクトの気体を前記成形型の底部の吸気孔から前記閉空間へと吸い込ませて、前記気体中の液体吸収性素材を前記成形型内に積層させて吸収体を成形することと、を有した吸収体の製造方法であって、
前記吸気ダクトの前記吸い込み用開口部は、前記閉空間内において前記所定面に対向して配置され、
前記吸気ダクトにおいて前記閉空間内に収容される部分の少なくとも一部は、その中心軸方向が、前記吸い込み用開口部の中心位置における前記成形型の移動方向と平行な成分を有することを特徴とする吸収体の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080013589.9A CN102361615B (zh) | 2009-03-24 | 2010-02-18 | 吸收体的制造设备和制造方法 |
US13/258,971 US8440130B2 (en) | 2009-03-24 | 2010-02-18 | Manufacturing apparatus and manufacturing method for an absorbent body |
UAA201112481A UA103080C2 (uk) | 2009-03-24 | 2010-02-18 | Пристрій для виготовлення і спосіб виготовлення вбираючої частини вбираючого виробу |
EP10755789.4A EP2412347A4 (en) | 2009-03-24 | 2010-02-18 | DEVICE AND METHOD FOR PRODUCING A SUCTIONABLE BODY |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-072450 | 2009-03-24 | ||
JP2009072450A JP5433271B2 (ja) | 2009-03-24 | 2009-03-24 | 吸収体の製造装置及び製造方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/258,971 Substitution US8440130B2 (en) | 2009-03-24 | 2010-02-18 | Manufacturing apparatus and manufacturing method for an absorbent body |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010109988A1 true WO2010109988A1 (ja) | 2010-09-30 |
Family
ID=42780684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/052434 WO2010109988A1 (ja) | 2009-03-24 | 2010-02-18 | 吸収体の製造装置及び製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8440130B2 (ja) |
EP (1) | EP2412347A4 (ja) |
JP (1) | JP5433271B2 (ja) |
CN (1) | CN102361615B (ja) |
UA (1) | UA103080C2 (ja) |
WO (1) | WO2010109988A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014010427A1 (ja) * | 2012-07-10 | 2014-01-16 | 株式会社瑞光 | 吸収体製造装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2394618B1 (en) * | 2010-06-09 | 2012-12-19 | The Procter & Gamble Company | Apparatus and method for retaining and releasing solid material |
KR20150050069A (ko) * | 2013-10-31 | 2015-05-08 | 한화케미칼 주식회사 | 고흡수성 수지 제조 장치 및 이를 이용한 고흡수성 수지 제조 방법 |
JP5913757B1 (ja) * | 2015-06-26 | 2016-04-27 | ユニ・チャーム株式会社 | 吸収性物品の吸収体を製造する装置 |
CN106389007B (zh) * | 2016-08-18 | 2022-05-13 | 安庆市恒昌机械制造有限责任公司 | 一种新型的颗粒状材料混合施加装置 |
CN114404148B (zh) * | 2022-01-26 | 2023-03-28 | 瑞光(上海)电气设备有限公司 | 一种吸收体制造装置 |
CN114432040B (zh) * | 2022-01-26 | 2023-03-28 | 瑞光(上海)电气设备有限公司 | 一种吸收体制造装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04161153A (ja) * | 1990-10-25 | 1992-06-04 | Kao Corp | 繊維の積繊方法及びその装置 |
JP2000178866A (ja) * | 1998-12-17 | 2000-06-27 | Kao Corp | 成形体の製造方法及び製造装置 |
JP2002272782A (ja) * | 2001-03-16 | 2002-09-24 | Daio Paper Corp | 吸収体の積繊装置 |
JP2004222774A (ja) * | 2003-01-20 | 2004-08-12 | Daio Paper Corp | 吸収体の積繊方法 |
JP2008231609A (ja) | 2007-03-20 | 2008-10-02 | Kao Corp | 吸引装置、シートの搬送方法、吸収体の製造方法及び不織布の嵩回復方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2540059A (en) * | 1947-08-02 | 1951-01-30 | American Cyanamid Co | Method of and apparatus for measuring and filling powders volumetrically |
US5004579A (en) * | 1989-05-26 | 1991-04-02 | Mcneil-Ppc-Inc. | Methods and apparatus for selective placement of fibrous material in formed fibrous articles |
US6630096B2 (en) * | 2001-09-04 | 2003-10-07 | Kimberly-Clark Worldwide, Inc. | Multi-stage forming drum commutator |
US6982052B2 (en) * | 2002-09-26 | 2006-01-03 | Kimberly-Clark Worldwide, Inc. | Process and apparatus for air forming an article having a plurality of superimposed fibrous layers |
US7704439B2 (en) * | 2006-11-15 | 2010-04-27 | The Procter & Gamble Company | Method for making air-laid structures |
-
2009
- 2009-03-24 JP JP2009072450A patent/JP5433271B2/ja active Active
-
2010
- 2010-02-18 UA UAA201112481A patent/UA103080C2/uk unknown
- 2010-02-18 US US13/258,971 patent/US8440130B2/en not_active Expired - Fee Related
- 2010-02-18 WO PCT/JP2010/052434 patent/WO2010109988A1/ja active Application Filing
- 2010-02-18 EP EP10755789.4A patent/EP2412347A4/en not_active Withdrawn
- 2010-02-18 CN CN201080013589.9A patent/CN102361615B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04161153A (ja) * | 1990-10-25 | 1992-06-04 | Kao Corp | 繊維の積繊方法及びその装置 |
JP2000178866A (ja) * | 1998-12-17 | 2000-06-27 | Kao Corp | 成形体の製造方法及び製造装置 |
JP2002272782A (ja) * | 2001-03-16 | 2002-09-24 | Daio Paper Corp | 吸収体の積繊装置 |
JP2004222774A (ja) * | 2003-01-20 | 2004-08-12 | Daio Paper Corp | 吸収体の積繊方法 |
JP2008231609A (ja) | 2007-03-20 | 2008-10-02 | Kao Corp | 吸引装置、シートの搬送方法、吸収体の製造方法及び不織布の嵩回復方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014010427A1 (ja) * | 2012-07-10 | 2014-01-16 | 株式会社瑞光 | 吸収体製造装置 |
JP2014014536A (ja) * | 2012-07-10 | 2014-01-30 | Zuiko Corp | 吸収体製造装置 |
US9551097B2 (en) | 2012-07-10 | 2017-01-24 | Zuiko Corporation | Device for producing absorbent body |
Also Published As
Publication number | Publication date |
---|---|
JP5433271B2 (ja) | 2014-03-05 |
CN102361615B (zh) | 2014-01-29 |
EP2412347A4 (en) | 2013-09-04 |
UA103080C2 (uk) | 2013-09-10 |
CN102361615A (zh) | 2012-02-22 |
JP2010220862A (ja) | 2010-10-07 |
US20120056357A1 (en) | 2012-03-08 |
EP2412347A1 (en) | 2012-02-01 |
US8440130B2 (en) | 2013-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010109988A1 (ja) | 吸収体の製造装置及び製造方法 | |
WO2010058709A1 (ja) | 吸収体の製造装置及び製造方法 | |
JP5386123B2 (ja) | 吸収体の製造装置及び製造方法 | |
US11141320B2 (en) | Absorbent cores and methods for forming absorbent cores | |
US6652798B1 (en) | Method and an apparatus for forming air-laid fibrous absorbent cores | |
JP5750270B2 (ja) | 吸収体の製造装置 | |
JP5291080B2 (ja) | 吸収体の製造装置 | |
JP2010220768A (ja) | 複合シートの製造方法及び製造装置 | |
US8187524B2 (en) | Apparatus and method for manufacturing absorbent body | |
JP5475434B2 (ja) | 吸収体の製造方法及び製造装置 | |
US20200289342A1 (en) | Absorbent cores and methods for forming absorbent cores | |
JP5457506B2 (ja) | 積繊装置 | |
US11135097B2 (en) | Absorbent cores and methods for forming absorbent cores | |
JP5457507B2 (ja) | 積繊装置 | |
JP5296663B2 (ja) | 吸収体の製造方法及び製造装置 | |
US20190105203A1 (en) | Absorbent cores and methods for forming absorbent cores | |
CN217744819U (zh) | 双层吸收芯体的制造系统 | |
JP2022086639A (ja) | 吸収体の製造方法及び積繊装置 | |
JP2013106881A (ja) | 吸収体の製造方法及び製造装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080013589.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10755789 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3915/KOLNP/2011 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010755789 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: a201112481 Country of ref document: UA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13258971 Country of ref document: US |