WO2022227145A1 - 刚性脱模成型装置 - Google Patents

刚性脱模成型装置 Download PDF

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Publication number
WO2022227145A1
WO2022227145A1 PCT/CN2021/094962 CN2021094962W WO2022227145A1 WO 2022227145 A1 WO2022227145 A1 WO 2022227145A1 CN 2021094962 W CN2021094962 W CN 2021094962W WO 2022227145 A1 WO2022227145 A1 WO 2022227145A1
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WO
WIPO (PCT)
Prior art keywords
forming
rigid
cylinder
adsorption
port
Prior art date
Application number
PCT/CN2021/094962
Other languages
English (en)
French (fr)
Inventor
夏双印
周国红
陈广岩
Original Assignee
上海智联精工机械有限公司
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Filing date
Publication date
Application filed by 上海智联精工机械有限公司 filed Critical 上海智联精工机械有限公司
Priority to US18/557,280 priority Critical patent/US20240148564A1/en
Priority to EP21938616.6A priority patent/EP4332288A1/en
Publication of WO2022227145A1 publication Critical patent/WO2022227145A1/zh

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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
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
    • 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
    • A61F13/15626—Making fibrous pads without outer layers
    • 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
    • A61F13/15764—Transferring, feeding or handling devices; Drives
    • 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
    • A61F13/15804—Plant, e.g. involving several steps
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/26—Wood pulp
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/407—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing absorbing substances, e.g. activated carbon
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2509/00—Medical; Hygiene
    • D10B2509/02—Bandages, dressings or absorbent pads
    • D10B2509/026—Absorbent pads; Tampons; Laundry; Towels

Definitions

  • the invention relates to a rigid demoulding forming device.
  • the core is the main absorption carrier of liquid, and the core is usually formed by entanglement and accumulation of dispersed fluff pulp fibers.
  • FIG. 1 and FIG. 2 showing the existing equipment for forming the core of disposable sanitary products, including a forming box 1, a forming cylinder 2 connected with negative pressure, and a core for transferring the core from the forming cylinder 2 to the
  • the transfer roller 3 on the base material is provided with a mold 4 with a structure corresponding to the shape of the core body and is fixed on the forming cylinder 2, wherein the mold 4 includes a forming cavity and a forming net 5 arranged at the bottom of the cavity, and the forming box 1 is driven by wind
  • the absorbent material is filled into the molding cavity to form a core body consistent with the shape of the molding cavity.
  • the transfer roller 3 When the molding cavity rotates to the position corresponding to the transfer roller 3, the transfer roller 3 adsorbs the core body from the molding cavity to the transfer roller 3, and passes through the molding cavity.
  • the transfer roller 3 is transferred to the conveying line, and the following problems exist in the existing structure:
  • the absorbent material is very easy to block the mesh on the forming mesh, especially when SAP material is used at the same time, the SAP material is granular, which is more likely to block the mesh, but the forming mesh is fixed in the forming cavity. Therefore, the mesh holes cannot be cleaned during operation, which not only has a great impact on the core forming effect, but also reduces the equipment efficiency and increases energy consumption due to the blockage of the mesh holes;
  • the present invention provides a rigid mold release molding device to solve the above technical problems.
  • a rigid mold release molding device for forming a core of a disposable absorbent article comprising a forming cylinder, a spreading box, an adsorption box and a forming net, wherein,
  • the forming cylinder includes a rigid bottom plate and a cylinder wall, the cylinder wall and the bottom plate are enclosed to form a accommodating space, the cylinder wall is provided with at least one forming hole, and the forming hole penetrates the thickness direction of the cylinder wall;
  • a spreading box which is arranged in the accommodating space, includes a spreading cavity and a spreading opening, and is used for spreading the absorbent material through the spreading opening;
  • the adsorption box includes an adsorption cavity and an adsorption port, the adsorption cavity is connected with the negative pressure device, the adsorption port and the dispersing port are arranged at intervals corresponding to each other, and a first area is included between the adsorption port and the dispersing port;
  • the forming wire is arranged separately from the forming cylinder, and the forming wire is also provided with a web, at least a part of the web and the forming wire are located in the first area, and the web is a porous network structure;
  • the forming cylinder rotates around its axis under the action of external force, and when the forming hole moves to the first area, the forming hole and the web form a forming cavity, and the spreading port spreads the absorbent material and disperses the absorbent material. Fill into the molding cavity to form a core that matches the contour of the molding hole.
  • the rigid demoulding molding device further includes a transfer device for transferring the core body to a predetermined position
  • the transfer device includes a transfer roller
  • the transfer roller includes an arc-shaped suction area for When the core body moves to the adsorption zone, under the action of the negative pressure of the adsorption zone, the core body is adsorbed to the transfer roller and the core body moves with the transfer roller.
  • the forming wire is wound around the transfer roll.
  • At least a portion of the barrel wall is attached to the web.
  • the cylindrical wall includes a plurality of modules, and the plurality of modules are connected end to end to form a cylindrical shape, and each module is provided with one or more forming holes.
  • the distribution box is in the shape of a fan, and the distribution opening is in the shape of an arc.
  • the dispersing box includes a feeding port
  • the rigid demoulding molding device further includes a feeding barrel
  • the feeding barrel includes a feeding channel
  • the feeding port is communicated with the feeding channel, so
  • the axis of the feed barrel is collinear with the axis of the forming barrel, and the forming barrel is configured to rotate about the feeding barrel.
  • the forming wire continuously passes through the first area under the driving of a driving device.
  • the forming mesh is a flexible body, and the forming mesh is connected end to end to form a ring shape.
  • the forming mesh enclosure is arranged around the adsorption box.
  • the embodiment of the present invention provides a rigid demoulding molding device including a forming cylinder, a spreading box, an adsorption box and a forming net, wherein the forming cylinder is a rigid structure, the spreading box is arranged in the forming cylinder, and the forming net is placed outside , the absorbent material moves from the inside to the outside, and the forming mesh is separated from the forming cylinder.
  • the forming mesh can be easily cleaned, thereby preventing the mesh hole from being blocked.
  • FIG. 1 is a schematic diagram of a device for forming a core of a disposable sanitary product in the prior art
  • Fig. 2 is the three-dimensional schematic diagram of demoulding cylinder in Fig. 1;
  • FIG. 3 is a schematic diagram of a rigid demoulding device according to an embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view of A-A in FIG. 3;
  • Fig. 5 is the enlarged schematic diagram of C area in Fig. 4;
  • Fig. 6 is the enlarged schematic diagram of B area in Fig. 3;
  • FIG. 7 is a schematic perspective view of FIG. 4 .
  • Forming box 1 Forming cylinder 2, 11; Transfer roll 3, 16; Mould 4; Forming wire 5, 14;
  • Bottom plate 111 accommodating space 112; cylinder wall 113; module 1130; forming hole 114; transmission device 115;
  • Scattering box 12 Scattering cavity 121; Scattering port 122; Feeding port 123; Feeding cylinder 124; Feeding channel 125;
  • adsorption box 13 adsorption port 131; first area 132;
  • FIG. 3 shows a schematic diagram of a rigid demoulding device
  • FIGS. 4 to 7 respectively show the structure of the corresponding position of the flexible demolding device. Further explanation.
  • the present invention provides a rigid mold release molding device, wherein the rigid mold mold release molding device is generally used in disposable sanitary equipment to form a core 15 composed of an absorbent material, and the absorbent material may be Fibers, such as fluff pulp fibers or rayon or other suitable fibrous materials, or blends of fibers with superabsorbent material (SAP).
  • the absorbent material may be Fibers, such as fluff pulp fibers or rayon or other suitable fibrous materials, or blends of fibers with superabsorbent material (SAP).
  • the rigid demolding forming device includes a forming cylinder, a dispersing box, an adsorption box and a forming net, and each part of the rigid demolding forming device will be described in detail below.
  • the forming cylinder 11 is cylindrical, and includes a pair of bottom plates 111 arranged at intervals and a cylinder wall 113 connecting the pair of bottom plates 111 .
  • the cylinder wall 113 and the pair of bottom plates 111 are enclosed to form an accommodating space 112
  • the bottom plate 111 and the cylinder wall 113 are both rigid bodies, and the rigid body means that the forming cylinder is kept in a predetermined shape, such as a cylindrical shape, during the process of forming the core body 15 , and is not deformed during the process.
  • the cylindrical wall 113 is provided with at least one forming hole 114, the forming hole 114 penetrates through the thickness direction of the cylindrical wall 113, and the forming hole 114 has a contour shape and size matching the shape of the core body 15 to be formed, In this embodiment, only the shape of the core body 15 is shown in a circular shape. Other suitable shapes, such as oval, oval, waist, polygon and other regular or irregular shapes, can be set as required. Without limitation, in addition, the meaning of the above-mentioned penetration means that the forming hole 114 no longer contains or is provided with a device that forms a blocking effect on the passage of air.
  • the cylindrical wall 113 can be set in a combined form. Specifically, the cylindrical wall 113 includes a plurality of modules 1130, the modules 1130 are connected to the bottom plate 111, and each module 1130 is tile-shaped , including cambered outer and inner surfaces, a plurality of the modules 1130 are connected end to end to form a complete cylindrical shape, and each module 1130 may be provided with one or more forming holes 114 .
  • modules 1130 can be detachably connected to the bottom plate 111 to facilitate the formation of cores 15 with different shapes by replacing different modules 1130 .
  • the forming cylinder 11 is rotated along its axis under the action of an external force, so that the forming hole 114 provided on the cylinder wall 113 can move to the first area 132.
  • the first area 132 will be described in detail in the following description, and further
  • the forming cylinder 11 further includes a transmission device 115 , so that, for example, the power device drives the forming cylinder 11 to rotate through the transmission device 115 .
  • the spreading box 12 is arranged in the accommodating space 112 of the forming cylinder 11, and is in the shape of a fan-shaped box, including a spreading cavity 121, a feeding port 123 and a spreading port 122, and is used to pass the spreading port 122 to the absorbent material. to spread.
  • the distribution port 122 is in the shape of an arc, and is disposed opposite to the side of the cylinder wall 113 facing the accommodating space 112. When the molding cylinder 11 is rotated under the action of external force, the molding hole 114 can pass through the area corresponding to the distribution port 122.
  • the distribution port 122 has a fixed orientation, so that the absorbent material is distributed in the fixed orientation direction. It can be understood that the distribution box 12 is fixed in the forming cylinder 11 to The dispersing port 122 forms a fixed orientation, and the fixed orientation is from the center of the forming cylinder 11 to the cylinder wall 113.
  • the fixed orientation is a vertical downward direction, so that the absorbent material is Under the action of air flow and gravity, it passes through the dispersion cavity 121 more quickly and is dispersed by the dispersion opening 122 .
  • the gap between the dispersion opening 122 and the cylinder wall 113 should be as small as possible to prevent the absorbent material from being scattered from the gap between the dispersion opening 122 and the cylinder wall 113 when the absorbent material is dispersed .
  • the rigid demolding molding device further includes a feeding barrel 124, the feeding barrel 124 includes a feeding channel 125, and the feeding port 123 communicates with the feeding channel 125 for passing through
  • the feeding cylinder 124 delivers the absorbent material into the spreading cavity 121 and spreads the absorbent material through the spreading opening 122 .
  • the feeding cylinder 124 is inserted in the center of the forming cylinder 11. Specifically, the axis of the feeding cylinder 124 is collinear with the axis of the forming cylinder 11, and the forming cylinder 11 is configured to surround The feeding cylinder 124 rotates, thereby preventing the feeding cylinder 124 from interfering with the rotation of the forming cylinder 11, and in this case, the feeding cylinder 124 provides support for the dispersing box 12 and the forming cylinder 11 at the same time, that is, the feeding cylinder 124 is satisfied at the same time.
  • the rotary arrangement and distribution box 12 is fixedly arranged inside the feed drum 124 .
  • the upstream of the feeding cylinder 124 may also include an air blowing device, on the one hand, it is used to blow the absorbent material dispersed upstream into the dispersing cavity 121, and on the other hand, the inside of the dispersing cavity 121 is in a positive pressure state. , the absorbent material is spread through the dispensing opening 122 .
  • the adsorption box 13 includes an adsorption cavity and an adsorption port 131.
  • the adsorption port 131 and the dispersion port 122 are arranged at intervals corresponding to each other, and a first area 132 is included between the adsorption port 131 and the dispersion port 122.
  • the first area 132 is an arc-shaped space between the adsorption port 131 and the distribution port 122 .
  • the adsorption port 131 is also an arc surface, and the arc surface formed by the adsorption port 131 and the distribution port 122 are formed.
  • the arc surfaces are set at parallel intervals.
  • the forming hole 114 can move to the first area 132.
  • the forming hole 114 can rotate to the first area 132.
  • the plurality of forming holes 114 can move to the first area 132 in sequence, thereby forming corresponding cores 15 in sequence.
  • the adsorption box 13 is connected to the negative pressure system for forming a negative pressure in the adsorption chamber, so that the airflow in the first area 132 flows from the dispersion port 122 to the adsorption port 131, and when there is absorbent material in the airflow , the absorbent material will move from the distribution port 122 to the adsorption port 131 along with the airflow.
  • the forming wire 14 is in the shape of a sheet and includes several mesh holes 141 for supporting the web 17 arranged on the forming wire 14.
  • the web 17 is a porous network structure so that the airflow can pass through.
  • the web 17, the web 17 can be non-woven fabric, toilet paper, etc., which is not limited here.
  • At least a part of the forming wire 14 and the web 17 is located in the first area 132.
  • the forming cylinder 11 When the forming cylinder 11 is rotated around its axis under the action of an external force, and the forming hole 114 is moved to the first area 132, the forming hole 114 and the web are formed.
  • the material 17 forms a forming cavity with the surface of the web 17 as the bottom and the inner wall of the forming hole 114 as the side wall.
  • the absorbent material When the absorbent material is spread through the spreading port 122, the absorbent material will follow the airflow from the spreading port 122 toward the adsorption port 131.
  • the first region 132 When passing through the first region 132, it is filled into the molding cavity to form a core 15 structure that matches the contour shape and size of the molding hole 114. It can be understood that the opening direction of the molding cavity is toward the distribution port 122. Orientation, it will be appreciated that in this case the core 15 will be formed directly on the web 17 .
  • At least a portion of the barrel wall 113 is attached to the web 17 .
  • the rigid demolding forming device further includes a web 17 laying device (not shown) for continuously laying the web 17 on the forming wire 14 to continuously form a core on the web 17 .
  • the forming wire 14 can continuously pass through the first area 132 under the driving of a driving device, so that the forming wire 14 is in a moving state and can transport the formed core body 15 to the downstream direction.
  • the forming wire 14 is a flexible body, so that when the forming wire 14 passes through the first area 132 , the web 17 supported on the forming wire 14 can be in close contact with the cylinder wall 113 as much as possible so that the forming wire 14 can be formed.
  • the gap between the bottom surface and the side wall of the cavity is small, preventing the absorbent material from leaking from the gap between the bottom surface and the side wall, or, the forming mesh 14 and the suction port 131 are attached, so that the first area 132 has a larger size
  • the forming wire 14 is connected end to end to form a ring, and the driving device drives the forming wire 14 to continuously move continuously. In this case, the forming wire 14 and the The material 17 transports the core body 15 to the downstream direction while continuing to form the core body 15 .
  • the driving device includes a driving wheel and a supporting wheel, the driving wheel and the supporting wheel are arranged around the suction box, and the forming mesh 14 is wound around the driving wheel and the supporting wheel, and is surrounded by the suction box. around the box.
  • the moving direction of the forming wire 14 is the same as the moving direction of the forming cylinder 11, and the speed is the same.
  • the width of the forming mesh 14 is greater than the width of the forming hole 114
  • the width of the spreading opening 122 is greater than the width of the forming hole 114 .
  • a cleaning device (not shown) can also be provided on the forming net to clean the forming net to prevent the mesh holes from being blocked.
  • the cleaning device can be an airflow cleaning device or a brush cleaning device.
  • the air flow cleaning device can clean the mesh holes 141 by spraying air flow to the surface of the forming net 14, and the brush cleaning device can clean the mesh holes 141 by brushing the surface of the forming net 14, so the mesh holes 141 are cleaned.
  • the cleaning device described is located remote from the web 17 .
  • the rigid mold release molding device further includes a transfer device for transferring the core body 15 to a predetermined position.
  • the transfer device includes a transfer roller 16, and the transfer roller 16 includes an arc-shaped adsorption area.
  • the core body 15 moves to the adsorption area, under the action of the negative pressure of the adsorption area, the adsorption area is absorbed. onto the transfer roller 16 and move with the transfer roller 16 .
  • the forming wire 14 is wound on the transfer roll 16 , so that the movement of the transfer roll 16 is synchronized with the movement of the forming wire 14 , and the transfer roll 16 can directly transfer the core 15 .
  • the rigid demoulding molding device further includes a finishing device 18, which is used to form a core body with substantially the same height through finishing.
  • the finishing device 18 is arranged in the spreading cavity 121, Including a free end, the free end abuts the inner surface of the cylinder wall 113 .
  • finishing device 18 includes a circular cross-section to create a better core surface while reducing wear.
  • the finishing device 18 is a cylindrical brush
  • the cylindrical brush includes a cylindrical body and a plurality of bristles fixed on the cylindrical body, at least a part of the bristles are facing the adsorption area, abutting the inner surface of the cylindrical wall 113 or only connecting with the cylindrical body. There is a small gap on the inner surface of the wall 113.
  • the cylindrical brush rotates, the surface of the cylindrical wall 113 is cleaned and the upper surface of the formed core body has a flat surface.
  • the dispersing box 12 is arranged in the forming cylinder 11, the forming net 14 is placed outside, the absorbent material moves from the inside to the outside, and the forming net 14 and the core body 15 are formed.
  • the forming cavity is in a separated state.
  • the forming mesh 14 can be easily cleaned, for example, an airflow cleaning device or a brush cleaning device can be installed to prevent the mesh hole 141 from being blocked, thereby improving the efficiency.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Vascular Medicine (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Manufacturing & Machinery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Botany (AREA)
  • Wood Science & Technology (AREA)
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Abstract

一种刚性脱模成型装置包括，包括成型筒(11)、散布箱(12)、吸附箱(13)及成型网(14)，其中，成型筒(11)为刚性结构，散布箱(12)设置在成型筒(11)内，成型网(14)外置，吸收性材料自内向外运动，成型网(14)与成型筒(11)分离设置，一方面，可以方便地对成型网(14)进行清理，从而防止网孔堵塞，同时由于成型孔(114)内不再设置有成型网(14)及其他装置，当芯体(15)在成型孔(114)内成型后需要从成型孔(114)内脱出时，不会有如成型网(14)等装置的静电作用或粘滞力作用而导致产品缺陷或吸收性材料浪费。

Description

刚性脱模成型装置 技术领域
本发明涉及一种刚性脱模成型装置。
背景技术
在一次性卫生用品中，芯体为液体的主要吸收载体，通常该芯体采用分散的绒毛浆纤维纠缠堆积形成。
请参考图1及图2，示出了现有的形成一次性卫生用品芯体的设备，包括成型箱1、连接有负压的成型筒2及用于将芯体从成型筒2上转移至基材上的转移辊3，设置有与芯体形态对应结构的模具4被固定在成型筒2上，其中，模具4包括成型腔及设置在腔底的成型网5，成型箱1通过风力作用将吸收性材料向成型腔内进行填充形成与成型腔形态一致的芯体，成型腔转动至与转移辊3对应位置时，转移辊3将芯体从成型腔内吸附至转移辊3，并通过转移辊3转移至输送线上，在现有的这种结构中存在下列问题：
一、在芯体成型过程中，吸收性材料极易堵塞成型网上的网孔，特别是同时使用有SAP材料时，SAP材料呈颗粒状，更容易堵塞网孔，但是成型网被固定在成型腔底部，因此在运行过程中无法对网孔进行清理，不仅对芯体成型效果造成较大影响，而且由于网孔堵塞造成设备效率降低，能耗增加；
二、由于成型的芯体需要通过转移辊进行吸附转移，由于成型网与芯体之间的静电吸附作用或粘滞力作用，使得在转移时仍然有部分吸收性材料被挂在成型网上，不经造成吸收性材料的浪费，而且导致芯体成型不良。
因此，迫切需要开发和实施一种新的可替代的解决方案来解决上述技术问题。
发明内容
为此，本发明提供了一种刚性脱模成型装置以解决上述技术问题。
一种刚性脱模成型装置，用于形成一次性吸收用品的芯体，包括成型筒、散布箱、吸附箱及成型网，其中，
成型筒，包括刚性的底板及筒壁，所述的筒壁与底板围设形成一个容置空间，所述的筒壁上设置有至少一个成型孔，所述的成型孔贯通筒壁厚度方向；
散布箱，所述的散布箱设置在容置空间内，包括散布腔及散布口，并用于通过散布口对吸收性材料进行散布；
吸附箱，包括吸附腔及吸附口，所述的吸附腔与负压装置连接，所述的吸附口与散布口对应间隔设置，在吸附口与散布口之间包括第一区域；
成型网，与成型筒分离设置，且，所述的成型网上还设置有幅材，幅材及成型网的至少一部分位于第一区域，所述的幅材为多孔的网络状结构体；
其中，所述的成型筒在外力作用下绕其轴线转动，并使得成型孔运动至第一区域时，成型孔与幅材构成一个成型腔，散布口对吸收性材料进行散布并将吸收性材料填充至成型腔内，形成与成型孔轮廓匹配的芯体。
进一步的，所述的刚性脱模成型装置还包括转移装置，用于将芯体转移至预定位置，所述的转移装置包括转移辊，所述的转移辊包括一个弧形的吸附区，用于在芯体运动至吸附区时，在吸附区的负压作用下，吸附芯体至转移辊上并使得芯体随同转移辊运动。
进一步的，所述的成型网绕设在转移辊上。
进一步的，所述筒壁的至少一部分与幅材贴附。
进一步的，所述的筒壁包括多个模块，多个所述的模块首尾依次相接构成圆筒型，每一模块上设置有一个或多个成型孔。
进一步的，所述的散布箱呈一个扇形，所述的散布口呈弧面状。
进一步的，散布箱包括进料口，所述的刚性脱模成型装置还包括一个进料筒，所述的进料筒包括一个进料通道，所述的进料口与进料通道连通，所述的进料筒的轴线与成型筒的轴线共线，且，成型筒被配置成绕进料筒转动。
进一步的，所述的成型网在一个驱动装置的驱动下连续通过第一区域。
进一步的，所述的成型网为柔性体，且，所述的成型网首尾相接形成环状。
进一步的，所述的成型网围设在吸附箱周边。
有益效果：本发明实施例提供一种刚性脱模成型装置包括，包括成型筒、散布箱、吸附箱及成型网，其中，成型筒为刚性结构，散布箱设置在成型筒内，成型网外置，吸收性材料自内向外运动，成型网与成型筒分离设置，一方面，可以方便的对成型网进行清理，从而防止网孔堵塞，同时由于成型孔内不再设置有成型网及其他装置，当芯体在成型孔内成型后需要从成型孔内脱出时，不会有如成型网等装置的静电作用或粘滞力作用而导致产品缺陷或吸收性材料浪费。
附图说明
图1现有技术中的形成一次性卫生用品芯体的装置示意图；
图2为图1中脱模筒立体示意图；
图3本发明实施例的刚性脱模成型装置示意图；
图4为图3中A－A截面示意图；
图5为图4中C区放大示意图；
图6为图3中B区放大示意图；
图7为图4立体示意图。
图示元件说明：
成型箱1；成型筒2，11；转移辊3，16；模具4；成型网5，14；
底板111；容置空间112；筒壁113；模块1130；成型孔114；传动装置115；
散布箱12；散布腔121；散布口122；进料口123；进料筒124；进料通道125；
吸附箱13；吸附口131；第一区域132；
网孔141；
芯体15；
幅材17；
整理装置18。
具体实施方式
请结合参考图3－图7，其中，图3示出了刚性脱模成型装置的示意图，图4－图7分别示出了柔性脱模装置相应位置的结构，下面将参考这些附图对本申请进一步说明。
本发明提供了一种刚性脱模成型装置，其中该刚性脱模成型装置通常应用于一次性卫生用品设备中，用于形成由吸收性材料构成的芯体15，所述的吸收性材料可以是纤维，如绒毛浆纤维或人造纤维或其他合适的纤维材料，或纤维与超吸收材料(SAP)的混合物。
所述的刚性脱模成型装置包括成型筒、散布箱、吸附箱及成型网，下面对刚性脱模成型装置的各个部分进行详细说明。
1.成型筒
所述的成型筒11呈圆柱形，包括一对间隔设置的底板111及连接该一对底板111的筒壁113，所述的筒壁113与该一对底板111围设形成一个容置空间112，所述的底板111及筒壁113均为刚性体，所述的刚性体是指成型筒在形成芯体15的过程中保持为预定的，如圆柱型形态，而不在该过程中发生形变。
所述的筒壁113上设置有至少一个成型孔114，所述的成型孔114贯通筒壁113厚度方向，所述的成型孔114具有与需要形成的芯体15形状匹配的轮廓形状及尺寸，在本实施例中，仅仅示出了呈圆形的芯体15形状，其他合适的形状，椭圆形、卵形、腰形、多边形以及其他规则或不规则形状均可以根据需要进行设置，在此不做限制，另外，上述的贯通的含义是指在成型孔114内不再含有或设有对气流通过构成阻挡效应的装置。
可以理解的，所述的筒壁113可以设置成组合形式，具体的，所述的筒壁113包括多个模块1130，所述的模块1130连接在底板111上，每一模块1130呈瓦片状，包括弧面状的外表面及内表面，多个 所述的模块1130首尾依次相接构成一个完整的圆筒状，每一模块1130上可以设置有一个或多个成型孔114。
可以理解的，所述的模块1130可以可拆卸的连接在底板111上，以方便通过更换不同的模块1130实现形成不同形态的芯体15。
所述的成型筒11在外力作用下沿其轴线转动，以使得设置在筒壁113上的成型孔114能够运动至第一区域132，在下述描述中将对第一区域132进行具体说明，进一步的，所述的成型筒11还包括传动装置115，以使得如，动力装置通过传动装置115驱动成型筒11转动。
2.散布箱
所述的散布箱12设置在成型筒11的容置空间112内，呈一个扇形的箱体状，包括散布腔121、进料口123及散布口122，并用于通过散布口122对吸收性材料进行散布。
所述的散布口122呈弧面状，与筒壁113朝向容置空间112一侧相对设置，当成型筒11在外力作用下转动时，所述的成型孔114可以通过散布口122对应的区域，在优选的实施例中，所述的散布口122具有一个固定朝向，使得吸收性材料向该固定朝向方向进行散布，可以理解的，所述的散布箱12被固定在成型筒11内，以使得散布口122形成固定朝向，所述的固定朝向为自成型筒11中心向筒壁113方向，在本实施例中，所述的固定朝向为竖直向下的方向，以使得吸收性材料在气流及重力作用下更快的通过散布腔121被散布口122进行散布。
可以理解的，所述的散布口122与筒壁113之间的间隙应尽可能 小，以防止在对吸收性材料进行散布时，吸收性材料从散布口122与筒壁113之间的间隙散失。
进一步的，所述的刚性脱模成型装置还包括一个进料筒124，所述的进料筒124包括一个进料通道125，所述的进料口123与进料通道125连通，用于通过进料筒124向散布腔121内输送吸收性材料，并通过散布口122对吸收性材料进行散布。
进一步的，所述的进料筒124插设在成型筒11中心位置，具体的，所述的进料筒124的轴线与成型筒11的轴线共线，所述的成型筒11被配置成绕进料筒124转动，从而防止进料筒124对成型筒11转动的干涉，同时在这种情形下，进料筒124同时为散布箱12及成型筒11提供支撑，即同时满足进料筒124转动设置及散布箱12固定设置在进料筒124的内部。
可以理解的，所述的进料筒124上游还可以包括风送装置，一方面用于将上游分散的吸收性材料风送至散布腔121内，另一方面使得散布腔121内呈正压状态，吸收性材料通过散布口122进行散布。
3.吸附箱
所述的吸附箱13包括吸附腔与吸附口131，所述的吸附口131与散布口122对应间隔设置，且在吸附口131与散布口122之间包括第一区域132，可以理解的，所述的第一区域132为吸附口131与散布口122之间的一个弧形空间，优选的，所述的吸附口131也为一弧面，且吸附口131形成的弧面与散布口122形成的弧面平行间隔设置。
可以理解的，当成型筒11在外力作用下转动时，成型孔114可 运动至第一区域132，当然，当成型筒11连续运动时，成型孔114可转动的运动至第一区域132后，再离开第一区域132，当筒壁113上设置有多个成型孔114时，多个所述的成型孔114可依次运动至第一区域132，从而依次形成对应的芯体15。
所述的吸附箱13与负压系统连接，用于在吸附腔内形成负压，使得第一区域132的气流为自散布口122向吸附口131方向流动，且，当气流中有吸收性材料时，吸收性材料将随同气流自散布口122向吸附口131方向运动。
4.成型网
所述的成型网14呈片状，包括若干个网孔141，用于支撑设置在成型网14上的幅材17，所述的幅材17为多孔的网络状结构体，以使得气流能够通过幅材17，所述的幅材17可以为无纺布、卫生纸等，在此不做限制。
所述的成型网14及幅材17的至少一部分位于第一区域132，当成型筒11在外力作用下绕其轴线转动，并使得成型孔114运动至第一区域132时，成型孔114与幅材17构成一个以幅材17表面为底、以成型孔114内壁为侧壁的成型腔，吸收性材料在通过散布口122进行散布时，吸收性材料随同气流自散布口122方向朝吸附口131方向运动，通过第一区域132时，填充至该成型腔内，形成与成型孔114轮廓形状、尺寸相匹配的芯体15结构，可以理解的，所述的成型腔的开口方向朝向散布口122方向，可以理解的，在该情形下，芯体15将直接在幅材17上形成。
优选的，所述筒壁113的至少一部分与幅材17贴附。
可以理解的，所述的幅材17随同成型网14运动，且成型网14与成型筒11同步运动时，成型筒11持续的在幅材17上形成芯体，在这种情形下，幅材17同时托置芯体15向下游方向运动。
进一步的，所述的刚性脱模成型装置还包括幅材17布放装置(未图示)，用于持续的在成型网14上铺设幅材17，以持续的在幅材17上形成芯体。
进一步的，所述的成型网14可在一个驱动装置的驱动下可连续通过第一区域132，以使得成型网14呈运动状态，能够将形成的芯体15输送至下游方向。
进一步的，所述的成型网14为柔性体，以使得在成型网14通过第一区域132时，使得托置在成型网14上的幅材17能够与筒壁113尽可能贴合从而使得成型腔底面与侧壁之间的间隙小，防止吸收性材料从底面与侧壁之间的间隙泄露，或，所述的成型网14与吸附口131贴合，以使得第一区域132具有更大的负压效果，同时，所述的成型网14首尾相接形成环状，所述的驱动装置驱动该成型网14能持续的连续运动，在这种情形下，所述的成型网14及幅材17在持续形成芯体15的同时将芯体15输送至下游方向。
进一步的，所述的驱动装置包括驱动轮与托轮，所述的驱动轮与托轮设置在吸附箱周边，所述的成型网14绕设在驱动轮与托轮上，并围设在吸附箱周边。
同时，可以理解的，所述的成型网14的运动方向与成型筒11的 运动方向相同，速度相同。
进一步的，所述的成型网14的宽度大于成型孔114的宽度，以及，所述的散布口122的宽度大于成型孔114的宽度。
进一步的，所述的成型网上还可以设置有清理装置(未图示)，用于对成型网进行清理，防止网孔堵塞，所述的清理装置可以为气流清理装置或刷扫清理装置，所述的气流清理装置可以通过向成型网14表面喷射气流的形式对网孔141进行清理，所述的刷扫清理装置可以通过对成型网14表面进行刷扫的形式对网孔141进行清理，所述的清理装置设置在远离幅材17的位置。
进一步的，在刚性脱模成型装置还包括转移装置，用于将芯体15转移至预定位置。
在本实施例中，所述的转移装置包括转移辊16，所述的转移辊16包括一个弧形的吸附区，当芯体15运动至吸附区时，在吸附区的负压作用下，吸附至转移辊16上，并随同转移辊16运动。
进一步的，所述的成型网14绕设在转移辊16上，以使得一方面转移辊16的运动与成型网14的运动同步，另一方面使得转移辊16能够直接对芯体15进行转移。
进一步的，所述的刚性脱模成型装置还包括整理装置18，用于通过整理形成高度保持基本相同的芯体，在本实施例中，所述的整理装置18被设置在散布腔121内，包括自由端，所述的自由端抵接筒壁113内表面。
进一步的，所述的整理装置18包括圆形截面，以在降低磨损的 同时形成更好的芯体表面。
进一步的，所述的整理装置18为一筒型刷，该筒型刷包括筒体及固定在筒体上的若干刷毛，至少一部分刷毛朝向吸附区，抵接筒壁113内表面或仅与筒壁113内表面一小的间隙，当筒型刷转动时，对筒壁113表面进行清理同时使得形成的芯体上表面具有平整表面。
从上述描述可知，本发明提供的刚性脱模成型装置中，散布箱12设置在成型筒11内，成型网14外置，吸收性材料自内向外运动，且成型网14与形成芯体15的成型腔为分离状态，一方面，可以方便的对成型网14进行清理，比如设置气流清理装置或刷扫清理装置，从而防止网孔141堵塞，从而提高效率，同时由于成型孔114内不再设置有成型网及其他装置，当芯体15在成型孔114内成型后需要从成型孔114内脱出时，不会有如成型网等装置的静电作用或粘滞力作用而导致产品缺陷或吸收性材料浪费，从而解决困扰本领域技术人员长期未能解决的技术问题。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种刚性脱模成型装置，用于形成一次性吸收用品的芯体，其特征在于，包括成型筒、散布箱、吸附箱及成型网，其中，
    成型筒，包括刚性的底板及筒壁，所述的筒壁与底板围设形成一个容置空间，所述的筒壁上设置有至少一个成型孔，所述的成型孔贯通筒壁厚度方向；
    散布箱，所述的散布箱设置在容置空间内，包括散布腔及散布口，并用于通过散布口对吸收性材料进行散布；
    吸附箱，包括吸附腔及吸附口，所述的吸附腔与负压装置连接，所述的吸附口与散布口对应间隔设置，在吸附口与散布口之间包括第一区域；
    成型网，与成型筒分离设置，且，所述的成型网上还设置有幅材，幅材及成型网的至少一部分位于第一区域，所述的幅材为多孔的网络状结构体；
    其中，所述的成型筒在外力作用下绕其轴线转动，并使得成型孔运动至第一区域时，成型孔与幅材构成一个成型腔，散布口对吸收性材料进行散布并将吸收性材料填充至成型腔内，形成与成型孔轮廓匹配的芯体。
  2. 如权利要求1所述的刚性脱模成型装置，其特征在于，所述的刚性脱模成型装置还包括转移装置，用于将芯体转移至预定位置，所述的转移装置包括转移辊，所述的转移辊包括一个弧形的吸附区，用于在芯体运动至吸附区时，在吸附区的负压作用下，吸附芯体至转移辊上并使得芯体随同转移辊运动。
  3. 如权利要求2所述的刚性脱模成型装置，其特征在于，所述的成型网绕设在转移辊上。
  4. 如权利要求1所述的刚性脱模成型装置，其特征在于，所述筒壁的至少一部分与幅材贴附。
  5. 如权利要求4所述的刚性脱模成型装置，其特征在于，所述的筒壁包括多个模块，多个所述的模块首尾依次相接构成圆筒型，每一模块上设置有一个或多个成型孔。
  6. 如权利要求2所述的刚性脱模成型装置，其特征在于，所述的散布箱呈一个扇形，所述的散布口呈弧面状。
  7. 如权利要求2所述的刚性脱模成型装置，其特征在于，散布箱包括进料口，所述的刚性脱模成型装置还包括一个进料筒，所述的进料筒包括一个进料通道，所述的进料口与进料通道连通，所述的进料筒的轴线与成型筒的轴线共线，且，成型筒被配置成绕进料筒转动。
  8. 如权利要求2所述的刚性脱模成型装置，其特征在于，所述的成型网在一个驱动装置的驱动下连续通过第一区域。
  9. 如权利要求8所述的刚性脱模成型装置，其特征在于，所述的成型网为柔性体，且，所述的成型网首尾相接形成环状。
  10. 如权利要求9所述的刚性脱模成型装置，其特征在于，所述的成型网围设在吸附箱周边。
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