WO2014104115A1 - 粉粒体収容シートの製造方法と製造装置 - Google Patents
粉粒体収容シートの製造方法と製造装置 Download PDFInfo
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- WO2014104115A1 WO2014104115A1 PCT/JP2013/084711 JP2013084711W WO2014104115A1 WO 2014104115 A1 WO2014104115 A1 WO 2014104115A1 JP 2013084711 W JP2013084711 W JP 2013084711W WO 2014104115 A1 WO2014104115 A1 WO 2014104115A1
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- WIPO (PCT)
- Prior art keywords
- granular material
- sheet
- roll
- accommodation
- supply
- Prior art date
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Classifications
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- 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
- A61F13/15634—Making fibrous pads between sheets or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
-
- 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
-
- 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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
- A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
- A61F13/5323—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having absorbent material located in discrete regions, e.g. pockets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
- B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/028—Treatment by energy or chemical effects using vibration, e.g. sonic or ultrasonic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2555/00—Personal care
- B32B2555/02—Diapers or napkins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
Definitions
- the present invention relates to the production of a granular material-containing sheet, and more specifically, when producing a granular material-containing sheet in which a granular material is accommodated between two sheet materials, the powder is easy to handle.
- the present invention relates to a method for manufacturing a granule-containing sheet and a manufacturing apparatus.
- a disposable wearing article such as a disposable diaper is usually provided with an absorber for absorbing a liquid such as urine.
- Some of these absorbers are provided with a powder of superabsorbent polymer (hereinafter sometimes abbreviated as SAP) in order to absorb liquid efficiently.
- SAP superabsorbent polymer
- a manufacturing method and a manufacturing apparatus for storing a granular material such as the above have been proposed (for example, see Patent Document 1).
- the conventional manufacturing apparatus includes a roll-shaped transfer device and carrier support means, and a plurality of recesses are formed in a predetermined pattern on the peripheral surfaces of the transfer device and the carrier support means.
- a recess is formed by depressurizing the concave portion of the peripheral surface of the carrier support means, and this recess becomes a granular material storage chamber.
- a predetermined amount of granular material supplied from the granular material supply unit is accommodated in each concave portion of the peripheral surface of the transfer device, and this granular material is moved into the depression of the sheet material at the accommodating position.
- a second sheet material is disposed on the sheet material, and the two sheet materials are joined to each other around the depression.
- the depression formed in one sheet material is formed by depressurizing the concave portion on the peripheral surface of the carrier support means.
- This sheet material is made of a material such as a nonwoven fabric through which liquids and gases easily pass. Because of the formation, the shape of the depression is likely to vary depending on the degree of decompression, the sheet material supply speed, and the like. In particular, when the production speed is increased, it is not easy to form the depression having a predetermined shape.
- the apparatus after accommodating a granular material in the recessed part of the surrounding surface of a transfer apparatus, in order to move this granular material into the hollow of a 1st sheet material, the apparatus which handles a granular material is complicated. Moreover, there is a problem that handling of the granular material is not easy, for example, the granular material easily spills from each device.
- the technical problem of the present invention is to solve the above-mentioned problems, and when manufacturing a powder-containing sheet containing powder in a storage chamber formed between two sheets of material, the powder is easy to handle. It is providing the manufacturing method and manufacturing apparatus of a granular material accommodation sheet
- the present invention 1 relates to a method for producing a granular material-containing sheet, in which the granular material (6) is accommodated in an accommodating chamber (14) defined between two sheet materials (4, 8).
- this 1st sheet material (4) is roll of an anvil roll (2) It conveys in a surrounding surface, and accommodates the granular material (6) supplied via a supply path (12) from a granular material supply part (11) in said accommodation chamber (14) in the conveyance process, Thereafter, the storage chamber (14) is covered with the second sheet material (8), and the sheet materials (4, 8) are joined to each other at the peripheral edge of the storage chamber (14).
- the present invention 2 is a granular material containing sheet in which the granular material (6) is accommodated in the accommodating chamber (14) defined between the first sheet material (4) and the second sheet material (8).
- An anvil roll (2) that conveys the first sheet material (4) on the roll peripheral surface, and a granular material supply unit that continuously supplies the granular material (6) ( 11), a supply path (12) for guiding the powder (6) downward from the powder supply unit (11), and a joining means (10) for joining the two sheet materials (4, 8) to each other ),
- An accommodation position (17, 17a) and a joining position (18) are provided in order from the upstream side in the rotation direction along the peripheral surface of the roll (2), and further upstream than the accommodation position (17, 17a).
- the first sheet material (4) can be supplied by the first supply means (5).
- the lower end of the supply path (12) faces the storage chamber (14) formed in the first sheet material (4) at the storage position (17, 17a).
- the second sheet material (8) can be supplied by the second supply means (9) to the joining position (18) or between the joining position (18) and the accommodation position (17, 17a).
- the above-mentioned joining means (10) faces the anvil roll (2) at the above-mentioned joining position (18).
- the granular material is supplied from the granular material supply unit to the accommodation chamber via the supply path and stored, the granular material is prevented from spilling outside the apparatus and is easily handled.
- the formation of the storage chamber in the first sheet material is not limited to a specific method.
- a shaping roll having a plurality of convex portions on the roll peripheral surface is arranged to face the anvil roll, and a plurality of concave portions provided on the roll peripheral surface of the anvil roll are meshed with the convex portions,
- the accommodation chamber is shaped to the first sheet material by the convex portion and the concave portion meshing with the convex portion, the case is manufactured at high speed Even so, it is preferable because the storage chamber having a predetermined shape can be reliably formed.
- the accommodation chamber may be shaped by meshing the concave portion of the anvil roll with the convex portion. Since two shaping rolls are not required, the apparatus can be simplified, which is preferable.
- the joining of the two sheet materials is not limited to a specific joining means, and any joining means such as welding by a heating roll or joining by pressing an adhesive applied to any sheet with a pressure roll is adopted. be able to. However, if the two sheet materials are joined together by ultrasonic welding using an ultrasonic welding apparatus, the powder particles and other parts of the two sheet materials are not excessively heated during the joining, and predetermined adhesion is achieved. It is preferable because the strength can be easily set.
- the first sheet material in which the storage chamber having a predetermined shape is shaped at the shaping position is conveyed along the peripheral surface of the anvil roll. At this time, the first sheet material is placed in a state where the inside of the recess of the anvil roll is depressurized so that the accommodation chamber does not move relative to the recess of the anvil roll, and the accommodation chamber is adsorbed and held in the recess. It is preferable to transport to the joining position.
- the means for depressurizing the inside of the recess is not limited to a specific configuration, but normally, a decompression device communicating with the inside of the recess through an intake passage in the anvil roll is provided.
- the supply path is not limited to a specific shape or structure as long as it can continuously supply the powder from the powder supply unit.
- the above-mentioned granular material accommodation sheet is continuously manufactured and then cut and separated individually in units used for disposable wearing articles, etc., the above granular material is accommodated at this cutting location.
- the storage chamber exists, there is a problem that the powder particles fall down during cutting, and there is a problem that the cutting blade is worn or damaged early because the powder particles are hard.
- the above-mentioned supply path is provided with an exclusion means, and by excluding a part of the powder particles flowing through this supply path to the outside of the supply path by the exclusion means, If it is configured to be able to intermittently supply the granular material into the storage chamber, the supply of the granular material to the storage chamber can be stopped at the portion corresponding to the above-mentioned cutting location, and the granular material at the time of cutting This is preferable because the cutting blade can be prevented and the cutting blade is hardly damaged.
- the above-mentioned accommodation position may be provided at any position as long as the powder body can be supplied to the accommodation chamber. Regardless of the position of the granular material on the anvil roll, the granular material supplied from the above supply path reaches the anvil roll and then moves downward along the peripheral surface of the anvil roll by the action of gravity. Moving. In this case, if the accommodation position is provided on the upstream side in the rotation direction from the top of the anvil roll, the moving direction of the powder on the anvil roll (upstream side in the rotation direction) and the rotation direction of the anvil roll are opposite. The granular material is difficult to be smoothly accommodated in the accommodating chamber, and the granular material is likely to spill to the upstream side in the rotation direction.
- the moving direction of the granular material on the anvil roll (downstream in the rotational direction) and the rotational direction of the anvil roll are the same. Therefore, it is preferable because the granular material is smoothly accommodated in the accommodation chamber.
- the above-mentioned exclusion means can take various configurations as long as it has a structure capable of excluding a part of the granular material flowing through the supply path to the outside of the supply path.
- a high-pressure air injection device is arranged as an exclusion means, and a part of the granular material is excluded outside the supply path by the high-pressure air flow from the high-pressure air injection device.
- the supply path includes an opening / closing means as an exclusion means, and the opening / closing means is used to open and close the supply path, a part of the powder can be excluded to the outside of the supply path. It is preferable because the powder particles within the predetermined range can be reliably removed to the outside of the supply path.
- the above opening / closing means may be provided with a structure capable of opening and closing the supply path.
- the supply path is opened and closed by enabling switching to the recovery path by a path switching member disposed in the supply path.
- the opening / closing means includes an opening / closing member that opens and closes the supply path by traversing the supply path, the opening / closing member can reliably and quickly open and close the supply path, thereby providing a predetermined supply direction. Since the granular material within the range can be surely excluded to the outside of the supply path, so-called crisp intermittent supply with a clear boundary between the supply portion and the supply stop portion can be performed at high speed, which is more preferable.
- the opening / closing member is not limited to a specific shape, but, for example, a thinner plate-like member is preferable because it does not disturb the flow of the powder when traversing the supply path, and the plan view is substantially I-shaped. Or a substantially L-shaped structure that can reliably close the supply path.
- An opening / closing member having a compact storage space is preferable as long as it satisfies the specifications of the production apparatus for the powder-containing sheet.
- the opening / closing member may be configured to open and close the supply path by traversing the supply path.
- the opening / closing member is configured to move substantially parallel to the tangent to the peripheral surface of the anvil roll at the accommodation position. In this case, the opening / closing member can be brought close to the above-mentioned accommodation position, and the disturbance of the flow of the granular material downstream from the opening / closing position can be suppressed, which is preferable.
- the second sheet material supply position is preferably about 5 mm or less, excluding the thickness of the second sheet material from the distance to the storage position, and more preferably 2 mm or less. preferable.
- the guide member for guiding the second sheet material to the joining position or between the joining position and the housing position is not limited to a specific structure, and a small-diameter guide roll or a guide bar can be employed.
- a guide panel made of a metal plate or ceramic plate is provided, the tip of the guide panel can be brought as close as possible to the accommodation position, and there is no rotating part, so there is no risk of failure, and simple equipment ensures This is preferable because the second sheet can be guided.
- this guide panel is arrange
- the granular material is supplied from the granular material supply unit via the supply path and is stored in the storage chamber, it is preferable that the granular material spills out of the apparatus during the supply process. It is possible to prevent and easily handle the granular material in the manufacturing process.
- FIG. 1 It is a schematic block diagram of the manufacturing apparatus of the granular material accommodation sheet
- FIG. 8 (a) to 8 (f) are drawings for explaining the link mechanism of the opening / closing member according to the second embodiment of the present invention. It is a top view which shows an example of the granular material accommodation sheet
- seat is the anvil roll (2), the shaping roll (3) facing this anvil roll (2), and this shaping roll ( 3)
- a first supply means (5) for supplying the first sheet material (4) to the roll peripheral surface, and a granular material supply device for supplying the granular material (6) which is a superabsorbent resin (SAP) 7), a second supply means (9) for supplying the second sheet material (8) to the peripheral surface of the anvil roll (2), and both the sheet materials (4, 8) facing the anvil roll (2). ) Are joined to each other.
- said granular material supply apparatus (7) is an anvil from a granular material supply part (11) which stores a granular material (6), and granular material (6) from this granular material supply part (11).
- a supply path (12) for guiding to the upper part of the roll (2) and an opening / closing means (13) as an exclusion means provided at the middle in the vertical direction of the supply path (12) are provided.
- the opening / closing means (13) is provided in the intermediate portion in the vertical direction of the supply path (12).
- the present invention is not limited to this.
- the opening / closing means (13) What is necessary is just to provide in a path
- a granular material (14) is accommodated in the storage chamber (14) defined between the first sheet material (4) and the second sheet material (8).
- seat (15) in which 6) is accommodated is manufactured.
- a granular material may be other than SAP, In addition to the granular material or finer powder, the granular material may be fibrous.
- a shaping position (16) is provided on the roll circumferential surface of the shaping roll (3), and from the upstream side in the rotational direction along the circumferential surface of the anvil roll (2).
- a receiving position (17) and a joining position (18) are provided in this order.
- the first sheet material (4) is supplied to the roll peripheral surface of the shaping roll (3) by the first supply means (5) to the upstream side of the shaping position (16).
- the shaping roll (3) faces the anvil roll (2) at the shaping position (16), and the first sheet material (4) passes between the two rolls.
- the shaping roll (3) has a plurality of convex portions (19) on the roll peripheral surface, while the anvil roll (2) meshes with the convex portions (19) of the shaping roll (3).
- a recess (20) is provided on the peripheral surface.
- the shaping roll (3) is faced with a nip roll (21).
- the lower end opening of the supply path (12) of the powder and granular material supply device (7) is formed on the upper surface of the first sheet material (4) passing through the storage position (17) at the storage position (17). It faces the anvil roll (2) so as to face the stored accommodation room (14).
- the lower end of the supply path (12) is preferably close to the surface of the anvil roll (2).
- the distance between the lower end of the supply channel (12) and the surface of the anvil roll (2) depends on the supply amount of the granular material (6), but at least the supply thickness of the granular material, for example, the accommodation shown in FIG.
- the depth (th) or more of the chamber (14) is preferable.
- the distance between the lower end of the supply path (12) and the surface of the anvil roll (2) becomes larger than necessary, the granular material (6) supplied from the supply path (12).
- the air tends to be scattered around due to an air flow generated by the decompression in the concave portion (20) on the surface of the anvil roll (2) as described later.
- the distance between the lower end of the supply path (12) and the surface of the anvil roll (2) is preferably 10 mm or less, and more preferably 5 mm or less.
- the joining means (10) is constituted by an ultrasonic welding device, and the tip of the horn is made to face the anvil roll (2) at the joining position (18).
- Said 2nd supply means (9) is arrange
- An intake passage (22) is formed in the anvil roll (2), and the interior of the recess (20) communicates with the decompression device (23) through the intake passage (22).
- the lower part of the opening / closing means (13) has one side surface open to the external space, and the granular material (6) passing through the supply path (12).
- the reduced pressure in the recess (20) is not adversely affected.
- a windbreak plate (24) is disposed between the open surface side of the lower part of the supply path (12) and the anvil roll (2). The windbreak plate (24) prevents the airflow generated by the above-described decompression or the like from adversely affecting the supply of the granular material (6).
- a decompression maintaining member (25) such as a punching metal faces the peripheral surface of the anvil roll (2). In addition, the reduced pressure state in the concave portion (20) passing through this is maintained well.
- the powder and granule supply device (7) is provided with a predetermined amount of powder from the outlet (26) by a metering device (32) attached to the outlet (26) of the powder and particle supply unit (11).
- the body (6) is configured to be sent out downward, and the supply path (12) is arranged downward from the outlet (26). Since the granular material (6) is sent out downward along the supply path (12) from the metering device (32), it smoothly circulates in the supply path (12).
- the opening / closing means (13) disposed in the middle in the vertical direction of the supply path (12) includes an opening / closing member (27) having a plate shape and an I-shape in plan view as shown in FIGS. Yes. When the opening / closing member (27) crosses the supply path (12), the supply path (12) is opened and closed, and a part of the granular material flowing through the supply path (12) is supplied to the supply path (12). It can be excluded outside.
- the cross-sectional shape of the supply path (12) is long in the width direction of the first sheet material (4).
- the opening / closing member (27) is formed longer than the width of the supply path (12) in the width direction of the first sheet material (4) so that the supply path (12) can be closed. It drives so that the said supply path (12) may be crossed in the direction orthogonal to the width direction of said 1st sheet
- the opening / closing member (27) is rotationally driven at two locations via the link arms (28), thereby forming a four-link and rotating in a fixed direction while maintaining a parallel posture.
- the supply path (12) in which the above-mentioned cross-sectional shape is formed long in the width direction of the first sheet material (4) is sufficient if the entire supply path (12) is long in the width direction, and plural short in the width direction. It may be divided into individual passages. In this case, since the granular material (6) divided into each individual passage is supplied as it is from the lower end opening into the accommodation chamber (14), it is uniform over the width direction of the first sheet material (4). A powder body (6) can be supplied.
- an inflow amount changing means such as a guide plate is provided at the upper end inlet of each individual passage so that the granular material (6) fed from the metering device (32) is evenly distributed at the inlet of each individual passage.
- the opening / closing member (27) is driven so as to cross the supply path (12) from obliquely above the supply path (12) to obliquely downward on the opposite side. .
- the opening / closing means (13) includes a housing (29) surrounding a portion to be opened / closed in the supply path (12).
- the opening / closing member (27) is rotationally driven.
- a mechanical discharge means (30) such as a spiral conveying device is provided in the lower portion, and a discharge path (31) is formed in the lower portion of the housing (29). is there.
- the volume of the internal space of the housing (29) is preferably wide. This is because it is possible to suppress the influence of the air flow generated in the housing (29) on the flow of the granular material due to the decompression in the recess (20) on the surface of the anvil roll (2). Even if such an air flow occurs, if the volume of the internal space of the housing (29) is large, the flow of the air flow will not be fast, and the influence on the flow of the granular material can be suppressed. is there.
- the first sheet material (4) supplied to the peripheral surface of the shaping roll (3) by the first supply means (5) is the shaping roll (3) at the shaping position (16). ) And the anvil roll (2), thereby forming the accommodation chamber (14) in the first sheet material (4). Since the storage chamber (14) is shaped by the engagement of the convex portion (19) and the concave portion (20), the storage chamber (14) having a predetermined shape is formed even when produced at high speed. It is surely formed.
- the first sheet material (4) has different easiness of shaping depending on the thickness, material, etc., but since it is generally easy to shape when heated, the first sheet material (4) is placed on the shaping roll (3) or in the vicinity thereof.
- a heating means is preferably provided.
- the heating means include a heating device provided in the shaping roll (3) and a hot air blower for blowing heated air to the first sheet material (4).
- the first sheet material (4) is formed in the periphery of the anvil roll (2) in a state where the storage chamber (14) is adsorbed and held in the recess (20) by the pressure reduction in the recess (20). The sheet is conveyed downstream in the rotational direction.
- the storage chamber (14) reaches the storage position (17)
- the granular material supplied from the powder supply unit (11) through the supply path (12) ( 6) is supplied and accommodated in the accommodation chamber (14).
- the supply channel (12) has a cross-sectional shape that is long in the width direction of the first sheet material (4)
- a plurality of housings arranged in the width direction of the first sheet material (4) are arranged.
- the granular material (6) is simultaneously supplied and accommodated.
- the distance between the lower end of the supply path (12) and the surface of the anvil roll (2) is defined as the supply thickness of the granular material, that is, the depth of the storage chamber (14) shown in FIG.
- the granular material (6) supplied from the supply path (12) is caused by the air flow generated by the decompression in the recess (20) on the surface of the anvil roll (2). It is possible to prevent scattering to the surroundings.
- the distance to the storage chamber (14) is shortened. It can be efficiently stored in a predetermined storage chamber. That is, as a proximity effect between the lower end of the supply path (12) and the surface of the anvil roll (2), the granular material (6) supplied intermittently by driving the opening / closing member (27) Is open, it is efficiently stored in the specified storage chamber (14) without scattering to the surroundings, and when the supply channel (12) is closed, the flow into the corresponding storage chamber (14) is prevented. Be blocked.
- the supply passage (12) When supplying the granular material (6) to the storage chamber (14), the supply passage (12) is circulated by opening and closing the supply passage (12) by the opening / closing member (27) of the opening / closing means (13). Since a part of the powder is excluded outside the supply channel (12), the powder (6) is intermittently transferred from the powder supply unit (11) into the storage chamber (14). Supplied.
- the opening / closing member (27) is formed longer than the width of the supply path (12) in the width direction of the first sheet material (4), and is orthogonal to the width direction of the first sheet material (4). Since the supply path (12) is crossed in the direction, the supply path (12) is simultaneously opened and closed over the entire width. Therefore, the granular material (6) is simultaneously supplied to the storage chambers (14) arranged in the width direction of the first sheet material (4), and the supply is stopped simultaneously.
- seat (15) manufactured with this manufacturing apparatus forms the site
- the granular material containing sheet (15) produced continuously is cut individually in units used for disposable wearing articles, etc., it is cut at a site where the granular material (6) is not accommodated.
- the powder (6) is prevented from spilling during cutting, and premature wear and damage of the cutting blade are prevented.
- the opening / closing member (27) may be reciprocated between one side and the other side of the supply path (12), or may be moved from diagonally downward to diagonally upward on the opposite side. As shown in FIG. 4, the opening / closing member (27) is driven so as to cross the supply path (12) from the diagonally upper side of the supply path (12) to the diagonally lower side on the opposite side. As a result, the granular material (6) spilling from the supply path (12) during the crossing is surely excluded to the outside of the supply path (12). Since this supply path (12) surrounds the part where the above-mentioned opening and closing member (27) opens and closes by the casing (29), the granular material (6) spilled from the supply path (12) by the above opening and closing operation.
- FIG. 6 is a schematic block diagram of the manufacturing apparatus of the granular material accommodation sheet
- the second embodiment is common to the first embodiment in that it includes a joining means (10) for joining the sheet materials (4, 8) to each other.
- the second embodiment is the same as the first embodiment. Is different from the first embodiment in that the accommodation position (17a) is provided on the downstream side in the rotation direction from the top of the anvil roll (2). As shown in FIGS. 1 and 3, in the first embodiment, the accommodation position (17) is provided upstream in the rotational direction from the top of the anvil roll (2). Therefore, as will be described below, there is a possibility that the granular material (6) supplied from the supply channel (12) is not stored in the predetermined storage chamber (14) and spills upstream in the rotational direction.
- the granular material (6) supplied from the supply channel (12) reaches the anvil roll (2) regardless of the accommodation position (17 or 17a) on the anvil roll (2), and then the anvil is caused by the action of gravity. It moves downward along the peripheral surface of the roll (2).
- the accommodation position (17) is provided on the upstream side in the rotational direction from the top of the anvil roll (2)
- the granular material (6) on the anvil roll (2) since the moving direction of the anvil roll (2) and the rotating direction of the anvil roll (2) are opposite to each other, the granular material (6) is difficult to be smoothly accommodated in the predetermined accommodating chamber (14), and the granular material (6) is upstream in the rotational direction. It becomes easy to spill into the side storage chamber (14).
- the accommodation position (17a) is provided in the rotation direction downstream from the top part of the anvil roll (2), and the granular material on an anvil roll (2) Since the moving direction of (6) and the rotating direction of the anvil roll (2) are the same, the powder (6) is smoothly accommodated in the predetermined accommodating chamber (14).
- the storage position (17a) shown in FIGS. 6 and 7 is 30 to 60 degrees, preferably 40, to the downstream side in the rotation direction with respect to the perpendicular connecting the center and the top of the anvil roll (2). It is in the angle range ( ⁇ °) of ⁇ 50 degrees.
- the generation of airflow in the housing due to suction reduces the flow of airflow in the housing by increasing the volume of the internal space of the housing as much as possible, or opening an air intake port in the housing. There is. Thereby, the flow of the airflow in a housing
- casing does not become quick, but it can suppress the influence on the flow of a granular material.
- an air intake (40) is opened in the housing (29), and a discharge duct (36) is attached to the lower portion of the housing (29).
- the powder (6) can be recycled by allowing the powder (6) sucked in the discharge duct (36) to return to the powder supply unit (11). it can.
- the opening / closing member (27) of the first embodiment is plate-shaped as shown in FIG. 5 and is substantially I-shaped in plan view, but the opening / closing member (27a) of the second embodiment is flat as shown in FIG.
- the view is substantially L-shaped.
- the substantially L-shaped opening / closing member (27a) is rotationally driven at two locations via the link arms (28a), respectively, and is in a fixed direction while maintaining a parallel posture with four linked links. To be rotated.
- the substantially L-shaped opening / closing member (27a) operates as shown in FIG. 8 (a) ⁇ FIG. 8 (b) ⁇ FIG. 8 (c) ⁇ FIG. 8 (d) ⁇ FIG.
- the opening / closing member (27a) has a honeycomb structure including a large number of cavities (41) in order to reduce the weight while securing the strength so that the opening / closing member (27a) can be driven at high speed.
- one opening / closing member (27a) is rotated.
- the present invention is not limited to this.
- a plurality of opening / closing members (12) can be opened and closed at higher speeds.
- a single opening / closing member (27a) may be used, and these may be alternately rotated.
- the first opening / closing member (27a) rotates in a fixed direction while maintaining the parallel posture by the four-link mechanism, but the second opening / closing member (38) is parallel to the paper surface and is in the supply path (12). It is connected to a rod of an air cylinder (not shown) so that it can reciprocate in a direction crossing the cylinder.
- the second opening / closing member (38) is retracted to a position that does not impede the flow of the powder (6) in the supply channel (12) during operation of the manufacturing apparatus. If you want to stop the supply of powder (6), extend the rod of the air cylinder and advance to the position indicated by the phantom line in FIG. 7, and you can continue to close the supply channel (12) immediately. , The supply of powder and granular materials can be stopped.
- the opening / closing member opens and closes the supply path (12) by traversing the supply path (12) of the granular material (6), the granular material (6) is intermittently supplied. At this time, instead of opening and closing the supply path (12) by driving the opening and closing member at a constant speed, the supply path (12) is closed, that is, crosses the supply path (12). If the rotational speed of the opening / closing member is lowered or increased from the rotational speed when the supply path (12) is open, the powder (6) is supplied according to the change rate of the rotational speed.
- the length of the part where the granular material (6) is not supplied with respect to the present part can be arbitrarily set as required, which is preferable.
- an electric motor (37) for rotating the opening / closing member (27a) a motor equipped with an inverter control mechanism, or more preferably a servo motor that can be controlled by a program, is used. Is precisely controlled to partially change the rotational speed during one rotation of the opening and closing member (27a), so that the length of the portion to which the powder (6) is supplied and the powder (6) are supplied. The length of the part which is not carried out can be arbitrarily set as needed.
- blow ducts (39) as second exclusion means are provided at both ends in the width direction of the supply passage (12), and the blow duct (39) is connected to a pressure air source (not shown).
- a pressure air source not shown.
- Second sheet supply position As shown in FIGS. 6 and 7, the second sheet material (8) is supplied as close as possible to the accommodation position (17a) on the downstream side in the rotational direction of the anvil roll (2) with respect to the accommodation position (17a). . Therefore, in the second embodiment, there is no decompression maintaining member such as punching metal between the accommodation position (17a) and the supply position of the second sheet material (8). Since the storage chamber containing the powder (6) is quickly covered with the second sheet (8), the powder (6) is not scattered around the apparatus.
- a guide panel (33) is provided as second supply means (9) for guiding the second sheet material (8).
- the tip of the guide panel (33) is as close to the accommodation position (17a) as possible, and specifically, the dimension excluding the thickness of the second sheet material (8) from the distance to the accommodation position (17a) is within 5 mm. At a position where the dimension is 2 mm or less.
- the second sheet material (8) is supplied to the peripheral surface of the anvil roll (2) by the second supply means (9) of the guide roll method, Requires a large installation space.
- the installation space can be reduced and the tip of the guide panel (33) can be moved as close as possible to the accommodation position, and a rotating member such as a roll is used. Therefore, it is not necessary to consider the failure of the rotating part, and the equipment has a simple structure.
- this guide panel (33) is arrange
- the guide panel (33) is preferably formed of a material having a smooth surface and excellent wear resistance, such as stainless steel and ceramics.
- the guide panel (33) is arranged along the lower surface of the opening / closing means (13a).
- the air flow generated by the decompression in the recess (20) on the surface of the anvil roll (2) is reduced, and the air flow Since the turbulent movement of the granular material (6) is suppressed, the flow of the granular material (6) from the supply path (12) to the storage chamber (14) becomes smooth.
- the shaping roll (3) is as close as possible to the accommodation position (17a).
- the volume of the space to be depressurized in the anvil roll (2) can be reduced, and the accommodation chamber (14) can be formed in the recess ( 20)
- the first sheet material (4) can be conveyed to the downstream side in the rotation direction on the peripheral surface of the anvil roll (2) while being securely adsorbed and held inside, and the energy cost can be reduced and implemented at a low cost. it can.
- a decompression maintaining member (25) such as punching metal on the outside of the first sheet material (4) along the peripheral surface of the anvil roll (2)
- the first sheet material (4) can be firmly adsorbed and held on the surface of the anvil roll (2) by reducing the pressure in the recess (20) on the surface of the anvil roll (2).
- a shaping position is provided at a position facing the anvil roll in the peripheral surface of the shaping roll, and the first sheet material is engaged with the convexity of the shaping roll and the depression of the anvil roll.
- the storage chamber is formed, the present invention is not limited to this.
- the second shaping roll is caused to face the circumferential surface of the shaping roll, and the concave portion is formed on the roll circumferential surface of the second shaping roll.
- the accommodation chamber may be formed in the first sheet material by meshing between the concave portion and the convex portion of the shaping roll. In this case, after the formed storage chamber is moved to the roll peripheral surface of the anvil roll, it is conveyed along the roll peripheral surface.
- the ultrasonic welding apparatus is used as the joining means.
- the present invention is not limited thereto.
- a sheet material coated with a heating roll or an adhesive such as hot melt is used.
- Other bonding means such as a roll for pressure bonding may be used.
- the supply path is arranged in the vertical direction, and the opening / closing means as the exclusion means is provided in the vertical middle portion of the supply path.
- the present invention is not limited to this.
- the supply path may be provided inclined with respect to the vertical direction, and the opening / closing means may be provided at the upper end and the lower end of the supply path.
- the first sheet material and the second sheet material are joined at the peripheral edge of the storage chamber.
- an exclusion means such as a blower may be provided so that no powder particles are present at the peripheral edge.
- the joining of the both sheet materials may be performed by joining the entire peripheral portion or by partially joining the peripheral portion.
- the manufacturing method and manufacturing apparatus of the granular material containing sheet of the present invention are easy to handle the granular material when manufacturing the granular material containing sheet containing the granular material between the two sheet materials, although it is especially useful for the manufacture of the absorbent body used for the disposable wearing article, it is also useful for the manufacture of the granular material containing sheet for other uses.
- Windproof plate 25 ... Depressurization maintaining member 26 ... Outlet 27, 27a of the granular material supply part (11) 27 28a ... link arm 29 ... housing 30 ... mechanical discharge means 31 ... discharge path 32 ... metering device 33 ... guide panel 34 ... suction duct 35 ... suction duct 36 ... discharge duct 37 ... electric motor 38 ... second opening / closing member 39 ... Blow duct (second exclusion means) 40 ... Air intake 41 ... Cavity
Abstract
Description
従来、上記の粉粒体を2枚のシート材間に収容した粉粒体収容シートの製造方法としては、例えば2枚のシート材間に区画された収容室を形成し、この収容室にSAP等の粉粒体を収容する製造方法と製造装置が提案されている(例えば、特許文献1参照。)。
即ち本発明1は、粉粒体収容シートの製造方法に関し、2枚のシート材(4、8)間に区画形成された収容室(14)へ粉粒体(6)が収容されている粉粒体収容シートの製造方法であって、上記の第1シート材(4)に上記の収容室(14)を形成したのち、この第1シート材(4)を、アンビルロール(2)のロール周面で搬送し、その搬送過程で、粉粒体供給部(11)から供給路(12)を介して供給される粉粒体(6)を上記の収容室(14)内へ収容し、その後、この収容室(14)を第2シート材(8)で蓋するとともに、収容室(14)の周縁部で両シート材(4、8)を互いに接合することを特徴とする。
[第1実施形態]
図1に示すように、この粉粒体収容シートの製造装置(1)は、アンビルロール(2)と、このアンビルロール(2)に対面する賦形ロール(3)と、この賦形ロール(3)のロール周面に第1シート材(4)を供給する第1供給手段(5)と、高吸収性樹脂(SAP)である粉粒体(6)を供給する粉粒体供給装置(7)と、アンビルロール(2)の周面へ第2シート材(8)を供給する第2供給手段(9)と、アンビルロール(2)に対面して上記の両シート材(4、8)を互いに接合する接合手段(10)とを備えている。
上記の第2供給手段(9)は、上記の収容位置(17)と接合位置(18)との間へ第2シート材(8)を供給するように配置してある。
また上記の収容位置(17)から第2シート材(8)の供給位置までの間には、アンビルロール(2)の周面に沿ってパンチングメタルなどの減圧維持部材(25)が対面させてあり、この間を通過する上記の凹部(20)内の減圧状態が、良好に維持されるようにしてある。
また、上記の開閉部材(27)は、図4に示すように、上記の供給路(12)の斜め上方から反対側の斜め下方へ、その供給路(12)を横断するように駆動される。
上記の第1供給手段(5)により上記の賦形ロール(3)のロール周面に供給された第1シート材(4)は、上記の賦形位置(16)でこの賦形ロール(3)とアンビルロール(2)との間を通過し、これにより、第1シート材(4)に収容室(14)が賦形される。この収容室(14)は、上記の凸部(19)と凹部(20)との噛み合いにより賦形されるので、高速で生産される場合であっても、所定形状の収容室(14)が確実に形成される。なお、第1シート材(4)は、厚さや材質等によって賦形のしやすさが異なるが、一般に加熱されていると賦形しやすいので、上記の賦形ロール(3)やその近傍に加熱手段が設けてあると好ましい。この加熱手段としては、例えば賦形ロール(3)内に設けた加熱装置や、第1シート材(4)に加熱空気を吹き付ける熱風送風機などが挙げられる。上記の第1シート材(4)は、上記の凹部(20)内の減圧により、収容室(14)がこの凹部(20)内に吸着・保持された状態で、アンビルロール(2)の周面で回転方向下流側へ搬送されていく。
この第2実施形態において使用する図面と図1~図5の各図とに共通する構成部材には同じ参照番号を付して重複説明は省略する。
図6は、本発明の第2実施形態を示す粉粒体収容シートの製造装置の概略構成図である。
この第2実施形態においても、粉粒体シートの製造装置(1a)は、アンビルロール(2)と、賦形ロール(3)と、第1シート材(4)を供給する第1供給手段(5)と、高吸収性樹脂(SAP)である粉粒体(6)を供給する粉粒体供給装置(7)と、第2シート材(8)を供給する第2供給手段(9)と、両シート材(4,8)を互いに接合する接合手段(10)とを備えている点は第1実施形態と共通している。
アンビルロール(2)の周囲に沿って、回転方向上流側から順に収容位置(17a)と接合位置(18)とが設けてある点は、第1実施形態と同じであるが、第2実施形態においては、収容位置(17a)がアンビルロール(2)の頂部より回転方向下流側に設けてある点が第1実施形態とは異なる。
図1および図3に示すように、第1実施形態においては、収容位置(17)がアンビルロール(2)の頂部より回転方向上流側に設けてある。そのため、以下に説明するように、供給路(12)から供給される粉粒体(6)が所定の収容室(14)に収容されずに、回転方向上流側へ零れるおそれがある。
この場合、図1および図3に示すように、収容位置(17)がアンビルロール(2)の頂部より回転方向上流側に設けてあると、アンビルロール(2)上の粉粒体(6)の移動方向とアンビルロール(2)の回転方向とが逆であるため、粉粒体(6)がスムーズに所定の収容室(14)に収容されにくく、粉粒体(6)が回転方向上流側の収容室(14)に零れやすくなる。
機械的排出手段で粉粒体を筐体の外部へ排出する場合、その排出機械により粉粒体を損傷することがある。そこでこの第2実施形態では、重力の作用で落下させるとともに、必要に応じてこれに吸引路など空気流での吸引を併用することによる排出手段で、粉粒体を筐体の外部へ排出するように構成してある。これにより、粉粒体の損傷を低減でき、品質の良好な粉粒体をリサイクルできるので好ましい。
第1実施形態の開閉部材(27)は、図5に示すように板状で平面視が略I字形であるが、第2実施形態の開閉部材(27a)は、図8に示すように平面視が略L字状である。図8に示すように、略L字状の開閉部材(27a)は、2箇所がそれぞれリンク腕(28a)を介して回転駆動され、4連リンクとなって並行姿勢を維持した状態で一定方向に回転される。略L字状の開閉部材(27a)は、図8(a)→図8(b)→図8(c)→図8(d)→図8(e)→図8(f)の動作を繰り返すことによって、第1シート材(4)の幅方向と直交する方向に、粉粒体(6)の供給路(12)を斜め上方から反対側の斜め下方へ横断するように駆動され、これにより供給路(12)の開閉が行われる。なお、この開閉部材(27a)は、高速で駆動できるように、強度を確保しながら軽量化を図るため、内部に多数の空洞(41)を備えるハニカム構造にしてある。また、この実施形態では1枚の開閉部材(27a)を回転させているが、これに限定されず、例えば、その他の実施形態において、供給路(12)をより高速に開閉できるように、複数枚の開閉部材(27a)を用い、これらを交互に回転させるように構成してもよい。
開閉部材が粉粒体(6)の供給路を横断することで供給路(12)を開閉すれば、粉粒体(6)の間欠供給は可能であるが、製造装置を停・休止する場合などにおいて、粉粒体(6)の供給を停止しようとしても、回転駆動する開閉部材によって供給路(12)をただちに閉じることは、高速で回転する開閉部材を閉鎖位置で速やかに停止させなければならず、困難である。そこで、図6や図7に示すように、第1開閉部材(27a)とは別に第2開閉部材(38)を設け、通常の製造装置の運転時には、粉粒体(6)を間欠供給するため、第1開閉部材(27a)により供給路(12)を繰り返して開閉し、製造装置を停・休止する場合には、第2開閉部材(38)により供給路をただちに継続して閉じるようにしてある。これにより、製造装置の使用形態に適応した粉粒体(6)の供給操作と停止操作を実現することができる。
開閉部材が粉粒体(6)の供給路(12)を横断することで供給路(12)を開閉すれば、粉粒体(6)が間欠供給される。このとき、一定の速度で開閉部材を駆動させて供給路(12)の開閉を行うのではなく、供給路(12)が閉鎖されている間の、即ち供給路(12)を横断している間の開閉部材の回転速度を、供給路(12)が開放されているときの回転速度より低下または上昇させれば、その回転速度の変更割合に応じて、粉粒体(6)が供給されている部分に対する粉粒体(6)が供給されていない部分の長さを、必要に応じて任意に設定することができて好ましい。
粉粒体(6)の供給路(12)が幅方向に短い複数の個別通路に分割されている場合、そのうちの一部の個別通路を流通する粉粒体(6)を、適宜の第2の排除手段(機械的手段や空気流などによるブロー手段、吸引手段など)により供給路(12)から排除することもできる。その結果、粉粒体収容シートの製造装置で製造される粉粒体収容シートにおける粉粒体収容室部分の比率を必要に応じて適宜変更することができる。例えば、図7に示すように、供給路(12)の幅方向の両端部に第2の排除手段としてのブローダクト(39)を付設して、このブローダクト(39)を図示しない圧力空気源と通じて、ブローダクト(39)で間欠的に、幅方向両端寄りの個別通路を流通する粉粒体(6)の一部を吹き飛ばして供給路(12)の外部へ排除することにより、図9に示すように、粉粒体収容シート(15)における粉粒体(6)が収容されている収容室(14)の存在する部分を、長さ方向において部分的に狭くすることができる。そこで、ブローダクト(39)による吹き飛ばしの程度を変更すれば、粉粒体(6)を収容した収容室(14)部分の比率を人間の体型に合わせることが可能になる。
第2シート材(8)は、図6および図7に示すように、収容位置(17a)に対してアンビルロール(2)の回転方向下流側で、極力収容位置(17a)の近くに供給する。従って、第2実施形態では、収容位置(17a)と第2シート材(8)の供給位置との間には、パンチングメタルのような減圧維持部材が存在しない。粉粒体(6)を収容した収容室が速やかに第2シート(8)で覆われるので、粉粒体(6)が装置の周囲へ飛散することがない。
図6および図7に示すように、第2シート材(8)をガイドするための第2供給手段(9)としてのガイドパネル(33)を設ける。このガイドパネル(33)の先端は、極力収容位置(17a)の近くに、具体的には収容位置(17a)までの距離から第2シート材(8)の厚みを除いた寸法が5mm以内となる位置に、より好ましくはその寸法が2mm以下となる位置に配置する。図1および図3に示す第1実施形態では、ガイドロール方式の第2供給手段(9)により第2シート材(8)をアンビルロール(2)の周面に供給していたので、比較的大きな設置スペースを要する。これに対し、ガイドパネル(33)によるガイド方式を採用すれば、設置スペースを低減できる上に、ガイドパネル(33)の先端を極力収容位置へ近づけることができ、しかもロールなどの回転部材が使用されないので、回転部分の故障等を考慮しなくてもよく、簡単な構造の設備となる。また、このガイドパネル(33)は、供給位置へ案内される第2シート材(8)とアンビルロール(2)との間に配置されているので、上記の第2シート材(8)は、アンビルロール(2)表面での減圧による影響を受けず、円滑に供給される。なお、上記のガイドパネル(33)は、例えばステンレス鋼やセラミックスなど、表面が滑らかで耐摩耗性に優れた材質で形成してあると好ましい。
図6および図7に示すように、ガイドパネル(33)を開閉手段(13a)の下面に沿うように配置してある。開閉手段(13a)とガイドパネル(33)との間の空間を狭くすることにより、アンビルロール(2)の表面の凹部(20)内の減圧に伴って発生する気流を少なくし、その気流による粉粒体(6)の乱れた動きが抑制されるので、供給路(12)から収容室(14)に至る粉粒体(6)の流れがスムーズになる。
賦形ロール(3)は極力収容位置(17a)に近接させる。賦形ロール(3)と収容位置(17a)との距離を短くすることにより、アンビルロール(2)内で減圧される空間の容積を少なくでき、前記の収容室(14)を前記の凹部(20)内へ確実に吸着・保持した状態で第1シート材(4)をアンビルロール(2)の周面で回転方向下流側へ搬送できるうえ、エネルギーコストを低減して安価に実施することができる。
賦形ロール(3)から収容位置(17a)に至るまでの間は、アンビルロール(2)の周面に沿って第1シート材(4)の外側にパンチングメタルなどの減圧維持部材(25)を配置することにより、アンビルロール(2)の表面の凹部(20)内の減圧により、第1シート材(4)をアンビルロール(2)の表面にしっかりと吸着・保持することができる。
図6と図7に示すアンビルロール(2)内には図3に示す吸気路(22)と同様の吸気路が形成してある。また、アンビルロール(2)の側面に形成された吸引ダクト(34)と(35)は図示しない真空源と通じており、アンビルロール(2)の表面の凹部(20)内はアンビルロール(2)内に形成された吸気路とダクト(34)と(35)を経て真空源と通じている。この真空源により、少なくとも賦形位置(16)から接合位置(18)までの凹部(20)内が減圧される。
また、上記の実施形態では、上記の供給路を鉛直方向に配置し、この供給路の上下方向中間部に排除手段である開閉手段を設けたが、これに限定されず、例えば、その他の実施形態において、上記の供給路は鉛直方向に対し傾斜させて設けたものであってもよく、また上記の開閉手段は供給路の上端や下端に設けたものであってもよい。
2…アンビルロール
3…賦形ロール
4…第1シート材
5…第1供給手段
6…粉粒体
7…粉粒体供給装置
8…第2シート材
9…第2供給手段
10…接合手段
11…粉粒体供給部
12…供給路
13、13a…開閉手段
14…収容室
15…粉粒体収容シート
16…賦形位置
17、17a…収容位置
18…接合位置
19…凸部
20…凹部
21…ニップロール
22…吸気路
23…減圧装置
24…防風板
25…減圧維持部材
26…粉粒体供給部(11)の出口
27、27a…開閉部材
28、28a…リンク腕
29…筐体
30…機械的排出手段
31…排出路
32…調量装置
33…ガイドパネル
34…吸引ダク
35…吸引ダクト
36…排出ダクト
37…電動モータ
38…第2開閉部材
39…ブローダクト(第2の排除手段)
40…空気取入口
41…空洞
Claims (14)
- 2枚のシート材(4、8)間に区画形成された収容室(14)へ粉粒体(6)が収容されている粉粒体収容シートの製造方法であって、
上記の第1シート材(4)に上記の収容室(14)を形成したのち、
この第1シート材(4)を、アンビルロール(2)のロール周面で搬送し、その搬送過程で、粉粒体供給部(11)から供給路(12)を介して供給される粉粒体(6)を上記の収容室(14)内へ収容し、
その後、この収容室(14)を第2シート材(8)で蓋するとともに、収容室(14)の周縁部で両シート材(4、8)を互いに接合することを特徴とする、粉粒体収容シートの製造方法。 - ロール周面に複数の凸部(19)を備える賦形ロール(3)を上記のアンビルロール(2)と対面させて配置して、このアンビルロール(2)のロール周面に備える複数の凹部(20)を上記の複数の凸部(19)に噛み合わせ、
上記の賦形ロール(3)のロール周面に上記の第1シート材(4)を供給し、
上記の凸部(19)とこれに噛み合う凹部(20)によって上記の第1シート材(4)に上記の収容室(14)を賦形する、請求項1に記載の粉粒体収容シートの製造方法。 - 上記のアンビルロール(2)の凹部(20)内を減圧することにより、上記の収容室(14)をこの凹部(20)内に吸着・保持し、この状態で、この第1シート材(4)を第2シート材(8)と互いに接合する位置へ搬送する、請求項2に記載の粉粒体収容シートの製造方法。
- 上記の供給路(12)を流通する粉粒体(6)の一部を排除手段(13)で供給路(12)の外部へ排除することにより、上記の粉粒体供給部(11)から上記の収容室(14)内へ粉粒体(6)を間欠的に供給する、請求項1から3のいずれかに記載の粉粒体収容シートの製造方法。
- 粉粒体(6)を収容室(14)へ収容する位置(17a)をアンビルロール(2)の頂部よりも回転方向下流側に設ける、請求項1から4のいずれかに記載の粉粒体収容シートの製造方法。
- 粉粒体(6)を収容室(14)へ収容する位置(17a)に対してアンビルロール(2)の回転方向下流側で、この収容位置(17a)に近接した位置に上記の第2シート材(8)を供給する、請求項5に記載の粉粒体収容シートの製造方法。
- 上記の両シート材(4,8)を、超音波溶着により互いに接合する、請求項1から6のいずれかに記載の粉粒体収容シートの製造方法。
- 第1シート材(4)と第2シート材(8)との間に区画形成された収容室(14)へ粉粒体(6)が収容されている粉粒体収容シートの製造装置であって、
上記の第1シート材(4)をロール周面で搬送するアンビルロール(2)と、上記の粉粒体(6)を連続的に供給する粉粒体供給部(11)と、この粉粒体供給部(11)から粉粒体(6)を下方へ案内する供給路(12)と、上記の両シート材(4、8)を互いに接合する接合手段(10)と、上記の第1シート材(4)を供給する第1供給手段(5)と、第2シート材(8)を供給する第2供給手段(9)とを備えており、
上記のアンビルロール(2)の周面に沿って、回転方向上流側から順に収容位置(17,17a)と接合位置(18)とが設けてあり、
上記の収容位置(17,17a)よりも上流側へ上記の第1供給手段(5)により第1シート材(4)を供給可能に構成してあり、
上記の収容位置(17,17a)で、上記の供給路(12)の下端が上記の第1シート材(4)に形成された収容室(14)へ臨ませてあり、
上記の接合位置(18)またはこの接合位置(18)と上記の収容位置(17,17a)との間へ上記の第2供給手段(9)により第2シート材(8)を供給可能に構成してあり、
上記の接合位置(18)で上記の接合手段(10)がアンビルロール(2)に対面させてあることを特徴とする、粉粒体収容シートの製造装置。 - ロール周面に複数の凸部(19)を備える賦形ロール(3)を、上記の収容位置(17,17a)よりも上流側で上記のアンビルロール(2)に臨ませて備えており、
上記のアンビルロール(2)はロール周面に上記の複数の凸部(19)と噛み合う複数の凹部(20)を備えており、
上記の賦形ロール(3)のロール周面に賦形位置(16)が設けてあり、
上記の第1供給手段(5)が上記の賦形位置(16)またはその上流側へ第1シート材(4)を供給する、請求項8に記載の粉粒体収容シートの製造装置。 - 上記のアンビルロール(2)内の吸気路(22)を経て上記の凹部(20)内に連通する減圧装置(23)を備える、請求項9に記載の粉粒体収容シートの製造装置。
- 上記の供給路(12)を流通する粉粒体(6)の一部を供給路(12)の外部へ排除する排除手段(13)を備え、
上記排除手段(13)によって粉粒体(6)の一部を排出することにより、上記の粉粒体供給部(11)から上記のシート材(4)上へ粉粒体(6)が間欠的に供給される、請求項8から10のいずれかに記載の粉粒体収容シートの製造装置。 - 上記の排除手段が開閉手段(13)であり、この開閉手段(13)が、上記の供給路(12)を横断することによりこの供給路(12)を開閉する開閉部材(27, 27a)を備え、この開閉部材(27,27a)を、上記の収容位置(17,17a)でのアンビルロール(2)周面の接線と略平行に移動させる、請求項11に記載の粉粒体収容シートの製造装置。
- 第2シート材(8)を供給する第2供給手段(9)がガイドパネル(33)であって、このガイドパネル(33)をアンビルロール(2)に近接させるとともに、このガイドパネル(33)の先端を上記の収容位置(17,17a)へ近接させて配置する、請求項8から12のいずれかに記載の粉粒体収容シートの製造装置。
- 上記の接合手段(10)が超音波溶着装置である、請求項8から13のいずれかに記載の粉粒体収容シートの製造装置。
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JP2022090241A (ja) * | 2020-12-07 | 2022-06-17 | 花王株式会社 | 吸収体の製造方法 |
JP7349422B2 (ja) | 2020-12-07 | 2023-09-22 | 花王株式会社 | 吸収体の製造方法 |
CN112743958A (zh) * | 2020-12-29 | 2021-05-04 | 瓯锟科技温州有限公司 | 一种粉末和金属板的智能复合系统 |
CN112743958B (zh) * | 2020-12-29 | 2022-05-13 | 瓯锟科技温州有限公司 | 一种粉末和金属板的智能复合系统 |
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EP2939641A9 (en) | 2015-12-30 |
JP6247640B2 (ja) | 2017-12-13 |
EP2939641A1 (en) | 2015-11-04 |
US10076897B2 (en) | 2018-09-18 |
JPWO2014104115A1 (ja) | 2017-01-12 |
BR112015013091A2 (ja) | 2020-01-28 |
BR112015013091B1 (pt) | 2022-03-03 |
CN104884012B (zh) | 2018-10-26 |
EP2939641B1 (en) | 2018-05-02 |
CN104884012A (zh) | 2015-09-02 |
EP2939641A4 (en) | 2016-08-24 |
US20150352824A1 (en) | 2015-12-10 |
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