WO2012035736A1 - 網状構造体製造装置および網状構造体製造方法 - Google Patents
網状構造体製造装置および網状構造体製造方法 Download PDFInfo
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- WO2012035736A1 WO2012035736A1 PCT/JP2011/005094 JP2011005094W WO2012035736A1 WO 2012035736 A1 WO2012035736 A1 WO 2012035736A1 JP 2011005094 W JP2011005094 W JP 2011005094W WO 2012035736 A1 WO2012035736 A1 WO 2012035736A1
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- chute
- water
- network structure
- structure manufacturing
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/04—Conditioning or physical treatment of the material to be shaped by cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/906—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using roller calibration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/9145—Endless cooling belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/9175—Cooling of flat articles, e.g. using specially adapted supporting means by interposing a fluid layer between the supporting means and the flat article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
- D04H3/037—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random reorientation by liquid
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
- D04H3/045—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles for net manufacturing
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
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- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/025—General arrangement or layout of plant
- B29C48/0255—General arrangement or layout of plant for extruding parallel streams of material, e.g. several separate parallel streams of extruded material forming separate articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
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- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
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- D—TEXTILES; PAPER
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Definitions
- the present invention relates to a reticulated structure manufacturing apparatus and a reticulated structure that receive a part of a molten resin filament aggregate before landing on the water surface of a water tank and narrow down the thickness of the filament to form a surface layer of the mesh structure.
- the present invention relates to a body manufacturing method.
- a network structure in which a plurality of filaments made of a thermoplastic resin such as polyethylene as a main raw material are spirally and randomly entangled and partially thermally bonded.
- a net-like structure has innumerable voids between the filaments, and is used for, for example, bedding mats, cushions, or cushioning materials because of its high shock absorption.
- a resin is melted and stored in a storage container called a die.
- a sheet metal having a large number of holes is provided on the lower surface of the die, and the molten resin is extruded from these holes to form a line, which is naturally lowered to a lower water tank.
- the filament strikes, the speed changes due to buoyancy and water resistance, and solidification due to cooling occurs, and the above-described spiral, disordered entanglement and partial thermal bonding occur in water.
- the network structure when using the network structure as a mat or cushion for bedding, it is better to increase the bulk density of the surface layer of the network structure compared to the bulk density of the inner layer with respect to comfort and sag resistance. I know that there is. Therefore, there is a case where a sheet metal called a chute is installed on the upper surface of the aquarium to receive the filaments and guide them to the aquarium before landing on the aquarium.
- a sheet metal called a chute is installed on the upper surface of the aquarium to receive the filaments and guide them to the aquarium before landing on the aquarium.
- the chute is inclined, and water flows on the slope to create a uniform layer of water, waiting for the streak.
- a part of the line extruded from the hole slides along the chute slope and is guided to the water tank.
- the above-mentioned entanglement and thermal adhesion are caused on the chute surface, and it is narrowed toward the inner layer and has a high bulk density.
- a surface layer is formed.
- the outer surface of the surface layer is formed flat by sliding a flat chute. Therefore, for example, when the mesh structure is wrapped with a cover or the like, the filament is caught on the cover and is annoying or pulled in a state where the spiral of the filament is left exposed on the surface. As a result, there is an advantage that the fused portion between the filaments is peeled off and the strength is not lowered.
- Patent Document 1 discloses a technique of providing a water permeable sheet so as to cover the chute surface and supplying cooling water between the chute surface and the water permeable sheet. According to this method, water can be sucked up by the water-permeable sheet to form a uniform cooling water layer on the surface of the chute. Thus, the slip of the filament is suppressed, and an appropriate loop (a spiral and disordered entanglement between the filaments) is formed.
- the above-described method of covering the chute with the water-permeable sheet causes wrinkles or foreign matter (such as rust) on the water-permeable sheet, and has the following problems. That is, a uniform water layer is not formed on the wrinkled permeable sheet, and the friction does not become uniform, so that the filament does not form an appropriate loop.
- a uniform water layer is not formed on the wrinkled permeable sheet, and the friction does not become uniform, so that the filament does not form an appropriate loop.
- foreign matter adheres it is necessary to replace the water-permeable sheet itself to remove it, but it tends to be troublesome and is left unattended. As a result, foreign matter is mixed into the network structure.
- the water-permeable sheet does not enter such a state, it is necessary to carefully attach the water-permeable sheet or to always replace the water-permeable sheet when such a state has occurred. As long as the water-permeable sheet is used, such work is inevitably necessary, and there is a problem that these work is trouble
- the present invention has been made in order to solve the above-described problems of the prior art, and does not require a water-permeable sheet, and as a result, can eliminate the labor of various operations related to the water-permeable sheet. It is an object of the present invention to provide a manufacturing apparatus and a network structure manufacturing method.
- the present invention is opposed to both sides in the thickness direction of the linear assembly extruded downward, and is inclined so as to reduce the interval toward the center of the linear assembly,
- a net-like structure comprising a chute arranged along the width direction of the filament aggregate, and a water supply unit that supplies cooling water that cools the filament aggregate from above to below the surface of the chute
- the surface of the chute is uniformly roughened so that the cooling water spreads over the entire surface of the chute to form a cooling water layer, and the cooling water layer forms a line of the surface layer of the filament aggregate.
- the present invention is characterized in that the surface of the chute is roughened by sandblasting.
- the present invention is characterized in that the chute has an inclined portion inclined at a constant angle, and a guide portion in which a part of the inclined portion is bent downward.
- the present invention is preferably characterized in that the inclined portion of the chute is inclined at an angle of 20 degrees to 70 degrees with respect to the horizontal.
- the inclined portion of the chute is inclined at an angle of 30 to 50 degrees with respect to the horizontal.
- the guide portion of the chute is provided at an angle of 70 degrees to 90 degrees with respect to the horizontal.
- the invention of the present application is more preferably characterized in that the guide portion of the chute is provided at an angle of 75 to 85 degrees with respect to the horizontal.
- the surface roughness of the chute is 10-point average roughness (Rz) and is in a range of 0.2Z to 100Z.
- the surface roughness of the chute is 10 point average roughness (Rz) and is in a range of 0.4Z to 25Z.
- the present invention further includes a width setting plate provided on the surface of the chute so as to cross the longitudinal direction of the chute, and the width setting plate includes a central horizontal portion and a horizontal portion of the horizontal portion.
- the horizontal portion includes a guide portion formed by bending a part of the horizontal portion downward, and the width setting plate has a uniform surface. The surface is roughened.
- the present invention is characterized in that the surface of the width setting plate is roughened by sandblasting.
- the surface roughness of the width setting plate is 10-point average roughness (Rz) and is in a range of 0.2Z to 100Z.
- the surface roughness of the width setting plate is more preferably 10 point average roughness (Rz) in a range of 0.4Z to 25Z.
- the invention of the present application is opposed to both sides in the thickness direction of the line assembly extruded downward, and is inclined so as to reduce the interval toward the center of the line assembly, and the width of the line assembly
- the network structure manufacturing apparatus and the network structure manufacturing method of the present invention since a water-permeable sheet is not used in the first place, it is not necessary to attach or replace the water-permeable sheet. In addition, it is necessary to perform maintenance so that rust and the like do not occur on the chute surface, but in the method using a water permeable sheet, compared to the case where the water permeable sheet had to be replaced at the time of maintenance. According to the apparatus of the invention, it is only necessary to clean the surface of the chute, and maintenance can be easily performed.
- FIG. 3 is a perspective view of a network structure according to Example 1 and Example 2.
- FIG. FIG. 3 is a cross-sectional view taken along the line A-A ′ of the network structure according to the first embodiment.
- A is a front view for demonstrating the outline
- (A) is a front view for demonstrating a chute
- (b) is an enlarged view in the dotted line of (a). It is a front view for demonstrating the angle
- FIG. (A) is a front view for demonstrating a width setting board
- (b) is a side view
- (c) is a top view.
- FIG. 6 is a cross-sectional view taken along the line A-A ′ of the network structure according to the second embodiment.
- the network structure loop forming apparatus 20 is a part of the network structure manufacturing apparatus 100 and is an apparatus for forming the network structure 1.
- FIG. 1 is a front view for explaining an outline of a net-like structure loop forming apparatus 20 according to the first embodiment.
- FIG. 2 is a perspective view of the net-like structure loop forming apparatus 20.
- the net-like structure loop forming apparatus 20 includes opposed chutes 21 and 22 and water supply units 23 and 24 that supply water to the surfaces of the chutes 21 and 22, respectively.
- the chutes 21 and 22 are inclined at a predetermined angle so as to become lower toward the center thereof.
- the chutes 21 and 22 are each composed of an inclined portion 21a and a guide portion 21b, and an inclined portion 22a and a guide portion 22b.
- the guide portions 21b and 22b are formed by the inclined portions 21a and 22a, respectively. The slope is steep. If the space between the guide portion 21b and the guide portion 22b is called a valley, the thickness of the network structure 1 is determined by the width d of the lower end of the valley.
- Water supply units 23 and 24 are installed on the higher sides of the slopes of the chutes 21 and 22, respectively.
- the water supply units 23 and 24 are supplied with water from a water source (not shown), and discharge water from a plurality of holes 25 provided over the entire area.
- the water discharged from the water supply units 23, 24 flows on the slopes of the chutes 21, 22, eventually reaches the valley, and falls into the water tank 40 below the network structure loop forming apparatus 20.
- the melted resin filament 5 forms the filament aggregate 6 with a thickness slightly larger than the width d ′ of the upper end between the valleys of the chutes 21 and 22 and a width within the longitudinal length of the chutes 21 and 22. And descends from above toward the chutes 21 and 22 and the valleys. Therefore, some of the filaments 5 of the filament aggregate 6 pass through the valley as they are and land on the water surface of the aquarium 40, and some of the filaments 5 land on the chute 21 and 22 first. Then, the slope slides with the cooling water layer 21 c formed on the surfaces of the chutes 21 and 22, eventually reaches the valley, and falls to the water surface of the water tank 40.
- a loop is formed while the strip 5 slides down the slopes of the chutes 21 and 22. It must be formed or fused together between the filaments 5.
- the loop formation and the fusion of the filaments 5 generate a certain amount of friction and water layer flow on the slopes of the chutes 21 and 22, so that the filaments 5 are randomly scattered on the slopes by these frictions and water streams. Result.
- the slopes of the chutes 21 and 22 have uniform frictional resistance, and water
- the water supplied from the supply units 23 and 24 should be spread uniformly on the slope so that the line 5 is randomly scattered at any position on the slopes of the chute 21 and 22 so that loop formation and fusion do not occur. Don't be.
- the formation of the loop means that the intersecting portion is fused when the filament 5 is curled once, but at the same time, fusion occurs between adjacent filaments 5. Since these actions are performed irregularly, those that do not include a loop are also included in the technical scope of the present invention.
- a metal such as stainless steel is used for the chutes 21 and 22, but the processed metal surface is generally smooth and almost free from friction. If such a metal surface is exposed and water is allowed to flow and the filament is slid, the filament only rides on the water stream and reaches the aquarium 40 as it is, and loop formation and fusion between the filaments do not occur. .
- the conventional method uses the frictional resistance of the water-permeable sheet. That is, in order to realize the friction and water flow, a water permeable sheet is provided on the surface of the chute, and cooling water is supplied between the surface of the chute and the water permeable sheet.
- this method has a problem that the work of attaching the water permeable sheet and the work of replacing the water permeable sheet are troublesome.
- the water-permeable sheet has an appropriate friction, there is a problem that the uniform friction cannot be obtained on the slope of the chute due to wrinkling.
- Example 1 the surfaces of the chutes 21 and 22 were uniformly roughened by sandblasting. Appropriate frictional resistance was generated on the surface by sandblasting the surfaces of the chutes 21 and 22. Sandblasting can be applied mechanically, and friction can be uniformly generated on the surfaces of the chutes 21 and 22. Moreover, since a water-permeable sheet is not used in the first place, no countermeasure against wrinkles is required.
- metals generally have a water repellency that is peculiar to metal, and when the metal surface is exposed and water is flowed, there are portions that do not get wet with water, or conversely, portions where undulation occurs due to concentration of water.
- the water is uniformly spread by the water absorption of the water-permeable sheet.
- the water-permeable sheet is still wrinkled and cannot uniformly form a water layer on the slope of the chute. Therefore, sandblasting was applied to the surfaces of the chutes 21 and 22 to eliminate the water repellency peculiar to metals. If water repellency is lost, even if the metal surface is exposed and water is flowed, the water uniformly spreads on the slope and the cooling water layer 21c is formed, and a water-permeable sheet is not used in the first place. do not do.
- Example 1 the surfaces of the chutes 21 and 22 are uniformly roughened by sandblasting, thereby eliminating the water repellency peculiar to the metal and forming a uniform water layer on the surfaces of the chutes 21 and 22. While generating the cooling water layer 21c, an appropriate frictional resistance was also generated. As a result, it is not necessary to use a water-permeable sheet, and it is possible to eliminate the trouble of various operations related to the water-permeable sheet. In addition, since the maintenance of the chutes 21 and 22 is simplified and can be performed every day if necessary, adhesion of foreign matters can be prevented and foreign matters can be prevented from entering the network structure 1. In Example 1, sandblasting is used to uniformly roughen the surface, but the method of roughening is not limited to sandblasting as long as the surface can be uniformly roughened.
- FIG. 3 is a perspective view of the network structure 1
- FIG. 4 is a cross-sectional view of the network structure A-A '.
- the net-like structure 1 has a rectangular parallelepiped shape having a predetermined length, width, and thickness, like a general bedding mat.
- the thickness of the net-like structure 1 is determined by the width of the valleys of the chutes 21 and 22 as described above.
- the cross section of the network structure 1 it is comprised by the surface layer 2 with comparatively high bulk density, and the inner layer 3 with comparatively low bulk density.
- the boundary filaments 5 are fused.
- the difference in the bulk density between the surface layer 2 and the inner layer 3 and the sufficient fusion of the boundaries between the layers are caused by the function of the network structure loop forming apparatus 20, and the comfort and sag required of the bedding mat are required. It is closely related to bitterness.
- FIG. 5 is a diagram for explaining an outline of a manufacturing apparatus for a net-like structure.
- the network structure manufacturing apparatus 100 includes an extrusion molding machine 10, a network structure loop forming apparatus 20, a take-up machine 30, a water tank 40, a winding roll 50, and a work table 60. Consists of.
- the extrusion molding machine 10 includes a hopper 11 and a molding die 12.
- the hopper 11 melts and kneads the charged resin at a predetermined temperature, and sends the melted resin to the molding die 12.
- the molding die 12 extrudes the molten resin as the filament 5 at a predetermined extrusion speed.
- the molding die 12 is a sheet metal having a large number of holes with a predetermined diameter on the bottom surface, and the resin is extruded from the holes as the filament 5, and the filament 5 as a whole corresponds to the arrangement of the holes.
- the resulting filament aggregate 6 is obtained.
- the network structure loop forming apparatus 20 includes chutes 21 and 22 and water supply units 23 and 24.
- the net-like structure loop forming apparatus 20 receives a part of the filament 5 extruded from the forming die 12 before descending to the water surface of the water tank 40, and narrows the thickness of the filament aggregate 6 to reduce the thickness of the mesh-like structure 1.
- the surface layer 2 is formed.
- the chute 21 is made of, for example, a stainless steel material. Specifically, as shown in FIG. 6, an inclined portion 21 a that forms an inclined surface at a predetermined inclination angle ⁇ , and a guide portion that has an inclination angle ⁇ larger than the inclined portion 21 a. 21b. When a special shape such as an R shape is adopted for the chute 21, a copper plate that can be easily bent may be used. 6A is a front view for explaining the chute, and FIG. 6B is an enlarged view within a dotted line in FIG. Since the chute 22 is described in the same manner as the chute 21, a description thereof will be omitted including the following.
- the experimental results regarding the tilt angle will be described later. Since the surfaces of the inclined portion 21a and the guide portion 21b are roughened by sandblasting, the cooling water layer 21c is uniformly formed on the surface of the chute 21 as shown in the enlarged view of FIG.
- Rz 10-point average roughness
- the 10-point average roughness (Rz) is based on the JIS standard. “Only the reference length is extracted from the roughness curve in the direction of the average line, and measured in the direction of the vertical magnification from the average line of the extracted portion. Calculate the sum of the absolute value of the altitude of the highest peak from the highest peak to the fifth and the average of the absolute value of the lowest peak from the lowest to the fifth, and express this value in micrometers. What you did.
- the above-described sandblasting is also applied to the surface of the guide portion 21b, but the region close to the valley that is the space sandwiched between the guide portion 21b and the guide portion 22b, that is, the lower end portions of the guide portion 21b and the guide portion 22b. It is desirable not to perform sandblasting from 5 mm upward to 5 mm. This is because if the sandblasting is applied to the entire tip of the guide portion 21b, the wire 5 may be caught, which may hinder obtaining a network structure 1 having a stable thickness.
- the water supply unit 23 has a substantially cylindrical shape extending in the longitudinal direction of the chute 21 and has a plurality of holes over the entire area.
- the water supply unit 23 is supplied with water from a water source (not shown), thereby discharging water from the plurality of holes. As a result, the water flows on the surface of the chute 21. Since the inclined portion 21a of the chute 21 is roughened by sandblasting, water repellency peculiar to metal is lost, and water is uniformly spread over the entire surface without being repelled, thereby forming a cooling water layer 21c.
- the description of the water supply unit 24 is omitted because it is the same as that of the water supply unit 23.
- the inclined portion 21a When a part of the filament 5 pushed out from the forming die 12 is landed on the inclined portion 21a, the inclined portion 21a is randomly scattered by the friction of the surface of the inclined portion 21a caused by sandblasting and the water flow of the cooling water layer 21c. , And is guided by the guide portion 21 b to land on the water surface of the water tank 40.
- the filaments 5 When sliding down the inclined portion 21a, the filaments 5 are fused together while forming a loop, and the surface layer 2 is formed.
- the surface layer 2 and the inner layer 3 are not melt
- the take-up machine 30 is obtained by hanging a single endless belt 32 on a pair of upper and lower rollers 31.
- the roller 31 is rotated at a predetermined angular speed by the rotational energy of a prime mover (not shown), so that the endless belt 32 continues around the roller 31 at a constant speed. Since the specific gravity of the filament 5 is small, it floats in the water of the water tank 40. Therefore, the take-up machine 30 is installed in the water of the water tank 40 and is drawn downward by the endless belt 32 of the take-up machine 30 to form a continuous network structure.
- the winder 50 winds up the continuous network structure coming out of the water tank 40 and guides it to the work table 60. Then, the operator shears the continuous network structure guided to the work table 60 with a predetermined length, and the network structure 1 is manufactured.
- the network structure 1 having a thickness of 3.5 cm is formed by changing the surface roughness of the chutes 21 and 22.
- the molded product was cut into a width of 3 cm, and the tensile strength was measured and evaluated.
- This low tensile strength means that the degree of contact bonding is small, which affects repeated compression and becomes easy to wear.
- the product strength of the network structure 1 is affected by the material strength of the filament 5 itself and the joint strength between the filaments 5, and the joint strength can be based on the tensile strength.
- the bond strength is likely to be smaller than the material strength, the tensile yield stress appears due to the fracture of the joint between the filaments 5 rather than the tensile fracture of the filaments 5. Further, when the tensile failure of the filament 5 itself occurs before the fracture of the joint portion, the product strength is sufficient for the strength evaluation by the manufacturing process of the network structure 1.
- the product strength of the network structure 1 can be measured by other tests such as a repeated compression residual strain test, the repeated compression residual strain test or the like is greatly influenced not only by the bonding strength but also by the material strength. Therefore, the tensile strength is measured in order to more directly evaluate the bonding strength that depends on the conditions of the manufacturing process.
- the network structure 1 has sufficient tensile strength, and therefore, contact bonding. It was found that the degree of was sufficient.
- the network structure 1 has sufficient tensile strength even when the surface roughness (ten-point average roughness Rz) is 0.4 Z.
- Chute 21 and 22 surface roughness 6.3Z Water amount to chute 21, 22: Water supply part 23, 24 12 liters per minute per 1 m per side Surface roughness measuring method
- JIS B 0601 Tensile test condition according to 1982 JIS L 1096 (General Textile Testing Method) Method A (Strip Method) Test speed: 200 mm / min
- Initial test length (distance between chucks of tensile tester): 200 mm Number of tests: 5 samples
- the network structure 1 has a sufficient tensile strength, and therefore the degree of contact bonding is sufficient.
- the inclination angle ⁇ exceeds 70 degrees, the extruded filament 5 is not cooled and abnormal welding is likely to occur, and it becomes impossible to adjust the thickness to be uniform and non-uniform.
- the tensile strength is reduced, the compression is repeatedly affected, and it becomes easy to get loose.
- Example 1 As described above, in Example 1, sandblasting was applied to the surfaces of the chutes 21 and 22 to generate uniform frictional resistance on the surfaces and eliminate the water repellency peculiar to metals. As a result, a cooling water layer 21c, which is a uniform water layer, can be formed on the surfaces of the chutes 21 and 22, and the line 5 is randomly scattered on the slope by the water flow and the friction. Formation and fusion can occur. In addition, as compared with the conventional technique using a water-permeable sheet, it is not necessary to use a water-permeable sheet in the first place, so that the work of attaching or replacing the water-permeable sheet is eliminated. Further, it is only necessary to simply clean the surfaces of the chutes 21 and 22, and if possible, maintenance can be performed every day.
- the network structure loop forming apparatus 200 is for forming the network structure 1 including the side layer 4 having a higher bulk density than the inner layer 3 (see FIG. 10).
- FIG. 8 is a diagram for explaining the outline of the net-like structure loop forming apparatus 200 according to the second embodiment.
- symbol is used about the same thing, and description is abbreviate
- the network structure loop forming apparatus 200 includes, as in the first embodiment, opposed chutes 21 and 22 and water supply units 23 and 24 that supply water to the surfaces of the chutes 21 and 22, respectively. It consists of width setting plates 26 and 27 provided facing each other so as to intersect the longitudinal direction of the chutes 21 and 22.
- the thickness of the network structure 1 is determined by the width d of the lower end between the valleys of the chutes 21 and 22, and the width of the network structure 1 is determined by the interval w between the width setting plates 26 and 27. To decide.
- Example 2 the width setting plates 26 and 27 whose surfaces were roughened by sandblasting were installed. Similar to the chutes 21 and 22, the width setting plates 26 and 27 are made of a metal such as stainless steel, and the metal generally has a specific water repellency. If the metal surface is exposed and water is flowed, a portion that does not get wet with water is formed, and the line 5 may not fall into the water tank on the water flow at that portion.
- FIG. 9A is a front view of the width setting plate 26
- FIG. 9B is a side view
- FIG. 9C is a plan view.
- the width setting plate 26 includes a central horizontal part 26a, inclined parts 26b1 and 26b2 located on both sides of the horizontal part 26a, and a guide part 26c formed by bending a part of the horizontal part 26a downward.
- the inclined portions 26b1 and 26b2 must have the same inclination angle ⁇ as the inclination angles of the chutes 21 and 22. This is because the water flowing on the surfaces of the chutes 21 and 22 is immersed in the inclined portions 26b1 and 26b2.
- the horizontal portion 26 a must have a width l (el) equal to the width d ′ of the upper end between the valleys of the chutes 21 and 22.
- the angle of the guide part 26c is 0 to 90 degrees, preferably 20 to 70 degrees with respect to the horizontal. Moreover, it is desirable not to perform sandblasting from the lower end of the guide portion 26c to 5 mm upward.
- the thickness of the width setting plate 26 must be smaller than that in consideration of the thickness of the cooling water layer 21c formed on the surfaces of the chutes 21 and 22.
- the thickness of the width setting plate 26 is about 0.3 to 2.0 mm. The smaller the thickness, the better the water flowing on the surfaces of the chutes 21 and 22 will flow into the width setting plate 26. Even if the width setting plate 26 having a small thickness is selected, the water will spread uniformly on the surface. In addition, it is desirable to always adjust the amount of water discharged from the water supply units 23 and 24.
- the width setting plate 27 is the same as that of the width setting plate 26, and the description thereof is omitted.
- FIG. 10 is a cross-sectional view taken along the line A-A ′ of the network structure 1 shown in FIG. 3.
- the perspective view of the network structure 1 which concerns on Example 2 is the same as that of Example 1, it shall use FIG. 3 together.
- the net-like structure 1 has a rectangular parallelepiped shape having a predetermined length, width, and thickness, like a general bedding mat.
- the thickness of the net-like structure 1 is determined by the width d of the lower end between the valleys of the chutes 21 and 22 as described above, and the width is determined by the interval w between the width setting plates 26 and 27.
- the cross section of the network structure 1 by Example 2 is comprised by the surface layer 2 and the side layer 4 with comparatively high bulk density, and the inner layer 3 with comparatively low bulk density.
- the inner layer 3 is desirable that the filaments 5 are fused to each other at the boundary.
- the difference in bulk density between the surface layer 2, the inner layer 3 and the side layer 4 and the sufficient fusion of the boundaries between the layers are caused by the function of the network loop forming apparatus 200, and the sleeping comfort required for the bedding mat is required. It is closely related to goodness and difficulty.
- the surface of the width setting plates 26 and 27 is roughened by sand blasting to eliminate the water repellency peculiar to metal, and the water flowing from the chutes 21 and 22 is allowed to flow. 27 so as to spread uniformly over the entire surface. As a result, it is no longer necessary to use a water-permeable sheet in the first place, and it is possible to eliminate the labor of various operations related to the water-permeable sheet.
- the network structure manufacturing apparatus receives a part of the molten resin filament aggregate before landing on the water surface of the water tank, and narrows the thickness of the filament aggregate to form the surface layer of the mesh aggregate.
- it is useful when a water-permeable sheet is not required and, as a result, the labor of various operations related to the water-permeable sheet is eliminated.
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Abstract
Description
なお、実施例1では、均一に粗面化するためにサンドブラストを使用しているが、均一に粗面化することができれば、粗面化の方法は、サンドブラストに限らない。
傾斜部21a,22aの水平からの傾斜角度θ:40度
ガイド部21b,22bの水平からの傾斜角度φ:80度
シュート21、22への水量:水供給部23、24片側1mあたり毎分12リッター
表面粗さの測定方法
JIS B 0601:1982による
引張り試験条件
JIS L 1096(一般織物試験方法)のA法(ストリップ法)による
試験速度:200mm/min
初期試験長(引張り試験機のチャック間距離):200mm
試験数:5供試品
傾斜部21a,22aの水平からの傾斜角度θ:50度
ガイド部21b,22bの水平からの傾斜角度φ:80度
シュート21、22への水量:水供給部23、24片側1mあたり毎分12リッター
表面粗さの測定方法
JIS B 0601:1982による
引張り試験条件
JIS L 1096(一般織物試験方法)のA法(ストリップ法)による
試験速度:200mm/min
初期試験長(引張り試験機のチャック間距離):200mm
試験数:5供試品
シュート21、22表面粗さ:6.3Z
シュート21、22への水量:水供給部23、24片側1mあたり毎分12リッター
表面粗さの測定方法
JIS B 0601:1982による
引張り試験条件
JIS L 1096(一般織物試験方法)のA法(ストリップ法)による
試験速度:200mm/min
初期試験長(引張り試験機のチャック間距離):200mm
試験数:5供試品
シュート21、22の表面粗さ:6.3Z
傾斜部21a,22aの水平からの傾斜角度θ:40度
ガイド部21b,22bの水平からの傾斜角度φ:80度
表面粗さの測定方法
JIS B 0601:1982による
2 表面層
3 内層
4 側面層
10 押出成形機
20、200 網状構造体ループ形成装置
21、22 シュート
21a、22a 傾斜部
21b、22b ガイド部
23、24 水供給部
26、27 幅設定板
26a 水平部
26b1、26b2 傾斜部
26c ガイド部
30 引取機
40 水槽
50 巻取ロール
60 作業台
100 製造装置
Claims (14)
- 下方に押し出される線条集合体の厚さ方向の両側に対向し、線条集合体の中心に向かってその間隔を縮小させるように傾斜し、前記線条集合体の幅方向に沿って配置されるシュートと、該シュートの表面の上方から下方に向かって前記線条集合体を冷却する冷却水を供給する水供給部とを備えた網状構造体製造装置において、
前記シュートの表面を均一に粗面化して前記冷却水が該シュートの表面の全面に行き渡って冷却水層を形成し、該冷却水層で前記線条集合体の表面層の線条を受け止めてループを形成させ隣接する該線条の相互を接触絡合させ、嵩密度の高い表面層と該表面層で挟まれる嵩密度の低い内層を形成することを特徴とする網状構造体製造装置。 - 前記シュートの表面が、サンドブラストによって粗面化されたことを特徴とする、請求項1に記載の網状構造体製造装置。
- 前記シュートが、一定角度で傾斜する傾斜部と、該傾斜部の一部が下方へ折曲げ形成されたガイド部を有することを特徴とする、請求項1または2のいずれかに記載の網状構造体製造装置。
- 前記シュートの前記傾斜部が水平に対して20度ないし70度の角度で傾斜することを特徴とする、請求項1ないし3のいずれかに記載の網状構造体製造装置。
- 前記シュートの前記傾斜部が水平に対して30度ないし50度の角度で傾斜することを特徴とする、請求項1ないし4のいずれかに記載の網状構造体製造装置。
- 前記シュートの前記ガイド部が水平に対して70度ないし90度の角度をなして設けられることを特徴とする、請求項1ないし5のいずれかに記載の網状構造体製造装置。
- 前記シュートの前記ガイド部が水平に対して75度ないし85度の角度をなして設けられることを特徴とする、請求項1ないし6のいずれかに記載の網状構造体製造装置。
- 前記シュートの表面粗さは、10点平均粗さ(Rz)で、0.2Z~100Zの範囲であることを特徴とする請求項1ないし7のいずれかに記載の網状構造体製造装置。
- 前記シュートの表面粗さは、10点平均粗さ(Rz)で、0.4Z~25Zの範囲であることを特徴とする請求項1ないし8のいずれかに記載の網状構造体製造装置。
- 前記シュートの表面にて該シュートの長手方向と交差するように対向して設けられる幅設定板をさらに備え、
前記幅設定板は、
中央の水平部と、
前記水平部の両側に位置すると共に前記両側のシュートの傾斜と合致させた傾斜部とを備え、
前記水平部は、その一部を下方へ折曲げ形成したガイド部を備え、
前記幅設定板は、表面が均一に粗面化されたことを特徴とする請求項1ないし9のいずれかに記載の網状構造体製造装置。 - 前記幅設定板の表面が、サンドブラストによって粗面化されたことを特徴とする、請求項10に記載の網状構造体製造装置。
- 前記幅設定板の表面粗さは、10点平均粗さ(Rz)で、0.2Z~100Zの範囲であることを特徴とする請求項10または11のいずれかに記載の網状構造体製造装置。
- 前記幅設定板の表面粗さは、10点平均粗さ(Rz)で、0.4Z~25Zの範囲であることを特徴とする請求項10ないし12のいずれかに記載の網状構造体製造装置。
- 下方に押し出される線条集合体の厚さ方向の両側に対向し、線条集合体の中心に向かってその間隔を縮小させるように傾斜し、前記線条集合体の幅方向に配置されたシュートの均一に粗面化した表面の上方から下方に向かって前記線条集合体を冷却する冷却水を供給する冷却水供給ステップと、
前記冷却水で前記線条集合体の表面層の線条を受け止めてループを形成させ隣接する該線条の相互を接触絡合させるループ形成ステップと、
嵩密度の高い表面層と該表面層で挟まれる嵩密度の低い内層を形成する疎密形成ステップと、
を備えたことを特徴とする網状構造体製造方法。
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US13/635,957 US9334593B2 (en) | 2010-09-15 | 2011-09-09 | Apparatus for manufacturing a netted structure and method for manufacturing a netted structure |
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EP2489770B1 (en) | 2015-01-07 |
CN102959151B (zh) | 2016-04-13 |
US9334593B2 (en) | 2016-05-10 |
US20130161858A1 (en) | 2013-06-27 |
JP4966438B2 (ja) | 2012-07-04 |
KR20130098850A (ko) | 2013-09-05 |
CN102959151A (zh) | 2013-03-06 |
EP2489770A4 (en) | 2013-02-27 |
JPWO2012035736A1 (ja) | 2014-01-20 |
KR101829235B1 (ko) | 2018-02-14 |
HK1182421A1 (zh) | 2014-01-10 |
EP2489770A1 (en) | 2012-08-22 |
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