WO2014104118A1 - 粉粒体供給方法と供給装置 - Google Patents
粉粒体供給方法と供給装置 Download PDFInfo
- Publication number
- WO2014104118A1 WO2014104118A1 PCT/JP2013/084714 JP2013084714W WO2014104118A1 WO 2014104118 A1 WO2014104118 A1 WO 2014104118A1 JP 2013084714 W JP2013084714 W JP 2013084714W WO 2014104118 A1 WO2014104118 A1 WO 2014104118A1
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- WIPO (PCT)
- Prior art keywords
- supply
- supply path
- granular material
- opening
- closing member
- Prior art date
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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
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
- A61F13/15642—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres by depositing continuous layers or pads of fibrous material on single sheets or webs
-
- 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
-
- 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
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
Definitions
- the present invention relates to the supply of powder, and more specifically, the powder supply method that allows easy handling of the powder in the supply process and can supply the powder to the upper surface of the sheet material intermittently. It relates to a supply device.
- a disposable wearing article such as a disposable diaper includes an absorbent body 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 device provided with a device has been proposed (see, for example, Patent Document 1).
- This conventional granular material supply device has a plurality of recesses formed in a predetermined pattern on the peripheral surface of the transfer device.
- This transfer device is disposed close to the lower part of the outlet of the powder supply unit, and is opposed to the carrier supporting means that conveys the sheet material while supporting the sheet material at the lower receiving position of the transfer device. Then, after a predetermined amount of the granular material supplied from the granular material supply unit is accommodated in each concave portion of the peripheral surface of the transfer device, this granular material is in the accommodating position, from each concave portion of the transfer device, The sheet material supported by the carrier support means is moved into the accommodation chamber.
- the granular material is accommodated in the concave portion of the peripheral surface of the transfer device, moved to the accommodation position, and then moved to the accommodating chamber formed in the sheet material.
- the apparatus for handling the particles is complicated and that the particles are not easy to handle, such as the particles easily spill from each apparatus.
- the granular material containing sheet is continuously manufactured and then cut and separated individually in units used for disposable wearing articles and the like, the granular material is contained in the accommodating chamber at this cutting point. It is desirable not to accommodate.
- the technical problem of the present invention is to solve the above-mentioned problems, and it is easy to handle the granular material in the supply process, and further, the granular material supply method capable of intermittently supplying the granular material to the upper surface of the sheet material, and It is to provide a supply device.
- the present invention 1 relates to a granular material supply method, which is a granular material supply method for supplying a granular material (6) from the granular material supply unit (11) to the upper surface of the sheet material (4).
- Sheet material which arranges supply way (12) toward the lower part from outlet (26) of granular material supply part (11), and moves the lower end of this supply way (12) under this supply way (12)
- the powder particles are supplied from the powder supply unit (11) onto the sheet material (4). It is characterized by supplying the body (6) intermittently.
- this invention 2 is related with a granular material supply apparatus,
- the granular material supply part (11) which stores a granular material (6) and sends out predetermined amount of granular material (6) from an exit (26), and the said A supply path (12) disposed downward from the outlet (26) of the gas supply and an opening / closing means (13) disposed in the supply path (12) for opening and closing the supply path (12).
- the lower end of the supply path (12) faces the upper surface of the sheet material (4) passing below.
- the granular material is supplied from the granular material supply unit to the upper surface of the sheet material via the supply path, it is prevented from spilling outside the supply device and is easily handled. Moreover, since the supply path is opened and closed by the opening and closing means, a part of the granular material flowing through the supply path is excluded to the outside of the supply path, and the granular material is intermittently applied to the upper surface of the sheet material. To be supplied.
- the supply path only needs to be disposed downward from the outlet of the powder and granular material supply unit.
- the supply path may be provided to be inclined with respect to the vertical direction. If it is, it is possible to smoothly guide the granular material downward by the action of gravity, which is preferable.
- the opening / closing means provided in the supply path only needs to be capable of opening and closing the supply path.
- the supply path can be switched to a recovery path by a path switching means arranged in the supply path, and the supply path is opened / closed. Any configuration can be adopted.
- the opening / closing means includes an opening / closing member, and the opening / closing member is configured to open and close the supply path by crossing the supply path, the supply path can be reliably opened and closed quickly with a simple configuration, As a result, it is possible to reliably remove the powder particles in the predetermined range in the supply direction to the outside of the supply path, which is preferable because the boundary between the supply part and the supply stop part is clear and so-called crisp intermittent supply is possible.
- the attachment position of the opening / closing means is not specified.
- the opening / closing means can be provided at the upper end or the lower end of the supply path. It is preferable that it can be secured.
- the above-mentioned 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 granular material when traversing the supply path.
- the opening / closing member may be any member as long as it can open and close the supply path, and can adopt any size / shape according to the cross-sectional shape of the supply path. it can.
- the sheet material for example, a plurality of storage chambers are arranged side by side in the width direction and the powder particles are accommodated in each storage chamber.
- the above-mentioned supply path is formed so that the cross-sectional shape is long in the width direction of the above-mentioned sheet material so that the powder particles can be supplied simultaneously over a predetermined range in the width direction.
- the opening / closing member when the opening / closing member is formed long in the width direction of the sheet material and the supply path is crossed in a direction perpendicular to the width direction of the sheet material, the supply path is wide. Since it is simultaneously opened and closed over the entire direction, it is preferable because the supply of the granular material is simultaneously supplied and stopped over the predetermined range in the width direction of the sheet material.
- the opening / closing member may traverse the supply path from an arbitrary direction.
- the opening / closing member is caused to cross the supply path from the diagonally upper side to the opposite diagonal side of the supply path, the powder particles falling from the supply path during the crossing can be reliably transferred to the outside of the supply path. This is preferable.
- the above-described supply path only needs to be arranged downward from the outlet of the granular material supply unit, and is not limited to a specific shape or posture. However, in this supply path, at least a portion where the above opening / closing means opens and closes is surrounded by the casing, and the powder spilled from the supply path by the opening / closing operation is received in the casing. It is preferable that the powder particles do not spill outside the supply device.
- the granular material received in the casing can be discharged to the outside of the casing by any discharging means, but when using a discharging means such as a suction path by an air flow, an air flow is generated in the casing, There is a possibility of affecting the granular material moving in the supply path by the action of gravity or the like.
- a mechanical discharge means is provided in the housing, and if the powder particles spilling from the supply path are discharged to the outside of the housing by the mechanical discharge means, the unnecessary powder particles are reliably discharged to the outside of the housing.
- the granular material when the granular material is discharged to the outside of the casing by the mechanical discharge means, the granular material may be damaged by the discharging machine. Therefore, if the powder is discharged to the outside of the housing by the discharging means by using the action of gravity or, if necessary, suction by an air flow such as a suction path, the powder may be damaged. This is preferable because the granular material can be recycled. As will be described later, the generation of an air flow in the housing due to suction increases the volume of the internal space of the housing as much as possible or opens an air intake port in the housing to speed up the air flow. In other words, the influence on the flow of the granular material can be suppressed.
- the opening / closing member opens and closes the supply path by traversing the supply path of the granular material, intermittent supply of the granular material is possible, but supply of the granular material is required when the production apparatus is stopped or stopped. Even if it is attempted to stop, it is difficult to immediately close the supply path by the opening / closing member that is rotationally driven, because the opening / closing member that rotates at high speed must be stopped immediately at the closed position. Therefore, the opening and closing members are divided into the first and second types, and when the normal manufacturing apparatus is operated, the supply path is repeatedly opened and closed by the first opening and closing member. If the supply path is immediately and continuously closed by the two opening / closing members, an extremely efficient operation mode of the manufacturing apparatus can be realized.
- the opening / closing member opens and closes the supply path by traversing the supply path of the granular material, intermittent supply of the granular material is possible, but the opening / closing member is driven at a constant speed to open and close the supply path. Rather, if the rotational speed of the opening and closing member while the supply path is closed is reduced or increased from the rotational speed when the supply path is open, depending on the change rate of the rotational speed, It is preferable that the length of the part to which the granular material is not supplied relative to the part to which the body is supplied can be arbitrarily set as necessary.
- the powder supply path is divided into a plurality of individual passages arranged in the width direction of the sheet material, a part of the powder particles flowing through some of the individual passages is appropriately removed (mechanical means). Or a blowing means such as an air flow or a suction means).
- a blowing means such as an air flow or a suction means.
- the present invention is configured and operates as described above, the following effects can be obtained. (1) Since the granular material is supplied from the granular material supply unit through the supply path and is supplied to the upper surface of the sheet material, it is possible to satisfactorily prevent the granular material from spilling outside the supply device during the supply process. , Can easily handle the granular material.
- FIG. 1 It is a schematic block diagram of the manufacturing apparatus of a 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 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 anvil roll (2) and an opening / closing means (13) provided at an intermediate portion in the vertical direction of the supply path (12) are provided.
- the opening / closing means (13) is provided in the middle in the vertical direction of the supply path (12), but the present invention is not limited thereto.
- the opening / closing means (13) What is necessary is just to provide in a supply path (12), and what was provided in the upper end part and lower end part of the supply path (12) may be sufficient.
- 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 path (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 storage chamber shown in FIG. It is preferable that the depth (th) be equal to or greater than (14).
- 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 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) between the housing position (17) and the supply position of the second sheet material (8). The pressure-reduced state in the recess (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 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. The opening / closing member (27) crosses the supply path (12) to open and close the supply path (12), 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 the individual passages 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 (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) delivered from the metering device (32) is evenly distributed at the inlet of each individual passage.
- a granular material (6) can be supplied more uniformly over the width direction of a 1st sheet material (4), and it is preferable. Further, 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.
- 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 as a discharge means is provided in the lower part, and a discharge path (31 ) Is formed.
- 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 reduced pressure 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 is generally easy to shape when heated, so 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 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 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 passage (12) is caused by the airflow 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 accommodation 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 in the width direction of the first sheet material (4) than the width of the supply path (12), and is perpendicular to the width direction of the first sheet material (4).
- the supply path (12) since the supply path (12) is traversed, 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 opposite side of the supply path, or may be moved obliquely from the lower side to the diagonally upper side on the opposite side. As shown in FIG. 2, 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. 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 a 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 in the storage chamber (14) on the side.
- 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 an 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 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 it can be driven at a high speed.
- the single 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 a higher speed.
- a single opening / closing part (27a) material may be used, and these members may be rotated alternately.
- 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 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 provided 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 exclusion means are attached to both ends in the width direction of the supply passage (12), and the blow duct (39) is connected to a pressurized air source (not shown).
- 9 by intermittently blowing a part of the granular material (6) flowing through the individual passages near both ends in the width direction by the blow duct (39) and removing it outside the supply passage (12).
- the part in which the storage chamber (14) in which the granular material (6) is accommodated in the granular material accommodation sheet (15) can be partially narrowed in the length direction. Therefore, if the degree of blow-off by the blow duct (39) is changed, the ratio of the accommodating chamber (14) portion accommodating the powder particles (6) can be matched to the human body shape.
- 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 guide method using the guide panel (33) is adopted, 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. Since the guide panel (33) is disposed between the second sheet material (8) guided to the supply position and the anvil roll (2), the second sheet material (8) is The anvil roll (2) is supplied smoothly without being affected by the reduced pressure on the surface.
- 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).
- the apparatus for manufacturing the granular material-containing sheet includes an anvil roll or the like.
- the present invention is not limited thereto. It is also possible to apply to a manufacturing apparatus that transports in the direction.
- the sheet material that moves below the supply path may be a flat sheet material that does not include a storage chamber.
- the sheet material and the second sheet material can be joined to each other around the powder body placed on the sheet material to form a powder body containing sheet.
- the joining of both sheet materials may be any other joining means such as a heating roll or a roll that crimps a sheet material coated with an adhesive such as hot melt. Can be used.
- the supply path is arranged in the vertical direction, and the opening / closing member is provided in an intermediate portion in the vertical direction of the supply path.
- 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 or the lower end of the supply path.
- the granular material supply method and the supply device according to the present invention are easy to handle the granular material in the supply process, and can intermittently supply the granular material to the upper surface of the sheet material. It is particularly useful for the production of absorbents, but is also useful for the production of other products that use powders.
- Windshield 25 Pressure reduction maintaining member 26 ... outlet 27,27a of powder and granular material supply part (11) ... opening and closing member 28,28a ... link arm 29 ... casing 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 (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を製造する際、一方のシート材に形成した収容室に粉粒体を供給する装置として、ロール状の移送装置を備えたものが提案されている(例えば、特許文献1参照。)。
また、上記の粉粒体収容シートは、連続的に製造されたのち、使い捨て着用物品等に使用される単位で個別に切断して分離されるので、この切断箇所では収容室内に粉粒体を収容していないことが望ましい。しかしながら、上記の粉粒体供給装置では、粉粒体が粉粒体供給部の出口から上記の収容位置まで、ロール状の移送装置の凹部に収容された状態で移動することから、この粉粒体を上記のシート材に形成された収容室へ間欠的に供給することが容易でない問題がある。
即ち、本発明1は粉粒体供給方法に関し、粉粒体供給部(11)からシート材(4)の上面へ粉粒体(6)を供給する粉粒体供給方法であって、上記の粉粒体供給部(11)の出口(26)から下方に向けて供給路(12)を配置し、この供給路(12)の下端を、この供給路(12)の下方で移動するシート材(4)の上面に臨ませ、上記の供給路(12)を開閉手段(13)で開閉することにより、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)を間欠的に供給することを特徴とする。
(1)粉粒体は粉粒体供給部から供給路を介して供給され、シート材の上面へ供給されるので、供給過程で粉粒体が供給装置の外部へ零れることを良好に防止でき、粉粒体を容易に取扱うことができる。
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。
上記の賦形ロール(3)のロール周面には、上記の賦形位置(16)の上流側へ上記の第1供給手段(5)により第1シート材(4)が供給される。この賦形ロール(3)は、上記の賦形位置(16)で上記のアンビルロール(2)と対面しており、上記の第1シート材(4)はこの両ロール間を通過する。この賦形ロール(3)はロール周面に複数の凸部(19)を備えており、一方、上記のアンビルロール(2)は、この賦形ロール(3)の凸部(19)と噛み合う凹部(20)を周面に備えている。なお、上記の賦形ロール(3)には、ニップロール(21)が対面させてある。
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易さが異なるが、一般に加熱されていると賦形し易いので、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、粉粒体供給装置を備える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)内に零れやすくなる。
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(27a)材を用い、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。
開閉部材の形状や駆動方法等は、上記の実施形態のものに限定されないことは、言うまでもない。
2…アンビルロール
3…賦形ロール
4…シート材(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…吸引ダクト
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(排除手段)
40…空気取入口
41…空洞
Claims (16)
- 粉粒体供給部(11)からシート材(4)の上面へ粉粒体(6)を供給する粉粒体供給方法であって、
上記の粉粒体供給部(11)の出口(26)から下方に向けて供給路(12)を配置し、この供給路(12)の下端を、この供給路(12)の下方で移動するシート材(4)の上面に臨ませ、
上記の供給路(12)を開閉手段(13)で開閉することにより、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)を間欠的に供給することを特徴とする、粉粒体供給方法。 - 上記の開閉手段(13)は開閉部材(27,27a)を備えており、上記の供給路(12)を横断するようにこの開閉部材(27,27a)を移動させてこの供給路(12)を開閉する、請求項1に記載の粉粒体供給方法。
- 上記の供給路(12)の横断面形状を上記のシート材(4)の幅方向に長く形成するとともに、上記の開閉部材(27,27a)を上記のシート材(4)の幅方向に長く形成し、この開閉部材(27,27a)を、上記のシート材(4)の幅方向と直交する方向に上記の供給路(12)を横断させる、請求項2に記載の粉粒体供給方法。
- 上記の開閉部材(27,27a)を、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)を横断させる、請求項2または請求項3に記載の粉粒体供給方法。
- 上記供給路(12)を横断している間の開閉部材(27,27a)の移動速度を、供給路(12)を開放している間の開閉部材(27,27a)の移動速度と異ならせる、請求項2から4のいずれかに記載の粉粒体供給方法。
- 上記の開閉手段(13)がさらに第2の開閉部材(38)を備えており、前記の開閉部材(27,27a)で供給路(12)の開閉を繰り返して行い、上記の第2の開閉部材(38)で供給路(12)の閉鎖を必要に応じて継続的に行う、請求項2から5のいずれかに記載の粉粒体供給方法。
- 上記の供給路(12)のうち、少なくとも上記の開閉手段(13)が開閉する部位を筐体(29)で取り囲み、開閉操作により供給路(12)から零れる粉粒体(6)をその筐体(29)内に受け止め、排出手段(30)によりこの粉粒体(6)を筐体(29)の外部へ排出する、請求項1から6のいずれかに記載の粉粒体供給方法。
- 上記供給路(12)がシート材(4)の幅方向に並ぶ複数の個別通路に分割されており、一部の個別通路を流通する粉粒体(6)の一部を排除手段(39)で供給路(12)の外部へ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)上への粉粒体(6)の供給量が調整される、請求項1から7のいずれかに記載の粉粒体供給方法。
- 粉粒体(6)を貯留し、出口(26)から所定量の粉粒体(6)を送り出す粉粒体供給部(11)と、
上記の出口(26)から下方に向けて配置された供給路(12)と、
上記の供給路(12)に配置されこの供給路(12)を開閉する開閉手段(13)とを備え、
上記の供給路(12)の下端は、下方を通過するシート材(4)の上面に臨ませてあることを特徴とする、粉粒体供給装置。 - 上記の開閉手段(13)は開閉部材(27,27a)を備えており、この開閉部材(27,27a)は上記の供給路(12)を横断することでこの供給路(12)を開閉する、請求項9に記載の粉粒体供給装置。
- 上記の供給路(12)の横断面形状は、上記のシート材(4)の幅方向に長く形成してあり、上記の開閉部材(27,27a)は上記のシート材(4)の幅方向に長く形成され、上記のシート材(4)の幅方向と直交する方向に、上記の供給路(12)を横断する、請求項10に記載の粉粒体供給装置。
- 上記の開閉部材(27,27a)は、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、請求項10または請求項11に記載の粉粒体供給装置。
- 上記供給路(12)を横断している間の開閉部材(27,27a)の移動速度と、供給路(12)を開放している間の開閉部材(27,27a)の移動速度とをそれぞれ設定可能な制御機構を備えている、請求項10から12のいずれかに記載の粉粒体供給装置。
- 上記の開閉手段(13)がさらに第2の開閉部材(38)を備えており、前記の開閉部材(27,27a)が供給路(12)の開閉を繰り返して行い、上記の第2の開閉部材(38)が供給路(12)の閉鎖を必要に応じて継続的に行うことができる、請求項10から13のいずれかに記載の粉粒体供給装置。
- 上記の開閉手段(13)は、上記の供給路(12)のうちの少なくとも開閉される部位を取り囲む筐体(29)を備え、上記の供給路(12)からこの筐体(29)内に零れる粉粒体(6)を筐体(29)の外部へ排出する排出手段(30)を備える、請求項9から14のいずれかに記載の粉粒体供給装置。
- 上記供給路(12)が上記のシート材(4)の幅方向に並ぶ複数の個別通路に分割されており、一部の個別通路を流通する粉粒体(6)の一部を供給路(12)の外部へ排出するための排除手段(39)を備え、
上記排除手段(39)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)上への粉粒体(6)の供給量が調整される、請求項9から15のいずれかに記載の粉粒体供給装置。
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