WO2004073958A1 - 立体構造物およびその製造方法および製造装置 - Google Patents
立体構造物およびその製造方法および製造装置 Download PDFInfo
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- WO2004073958A1 WO2004073958A1 PCT/JP2004/001893 JP2004001893W WO2004073958A1 WO 2004073958 A1 WO2004073958 A1 WO 2004073958A1 JP 2004001893 W JP2004001893 W JP 2004001893W WO 2004073958 A1 WO2004073958 A1 WO 2004073958A1
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- Prior art keywords
- needle
- dimensional structure
- resin sheet
- substrate
- sheet
- Prior art date
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Classifications
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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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/18—Thermoforming apparatus
- B29C51/20—Thermoforming apparatus having movable moulds or mould parts
- B29C51/24—Thermoforming apparatus having movable moulds or mould parts mounted on movable endless supports
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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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
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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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
Definitions
- the present invention relates to a three-dimensional structure made of resin and a method for producing the same, and particularly to a three-dimensional structure having excellent pressure resistance despite having flexibility, and also having water permeability and heat insulation, and its simple production. A method and an apparatus that can be manufactured with good efficiency. Background art
- the three-dimensional structure of the ⁇ -side projection of the resin can be manufactured by molding with a mold, but since the mold needs to be removed, not only can the deep valley be manufactured, but also the resin does not turn to the narrow part of the tip. In addition, continuous sheets cannot be molded, and the complexity of the mold results in high mold cost and cost.
- foam sheet made of polyethylene resin as a flexible bulky structure, but foamed foam with a high bulkiness is weak in compression, poor in water permeability, weak in surface abrasion, and has mechanical dimensional stability. Does not have. Therefore, there is a need for a material that is flexible, has a high bulk, has air permeability and water permeability, is resistant to compression, and has mechanical dimensional stability. Also, it is technically difficult to produce foamed polyethylene sheets with a thickness of 5 mm or more, and for those with a thickness of more than 5 mm, thick foamed sheets are used together, but this is troublesome. Also, in the bonding process, it takes time to cool the middle part, and the line speed does not increase, resulting in poor production efficiency. DISCLOSURE OF THE INVENTION
- the present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art, and an object thereof is to provide a three-dimensional structure and a pressure-resistant three-dimensional structure having high force and flexibility. It is an object of the present invention to provide a method of manufacturing the same. It is another object of the present invention to provide a method and an apparatus capable of continuously producing the three-dimensional structure of the present invention at low cost. Another object of the present invention is to provide a high-height sheet that has surface wear strength and mechanical dimensional stability despite having high strength and heat insulation properties, and has properties superior to foam sheets. . Still another object is to provide a filter, drain material, heat insulating material, and loose material that is air permeable and water permeable and is flexible but has compressive strength and mechanical dimensional stability. Means for solving the problem
- the present invention has been made to achieve the above object, and has the following three-dimensional structure.
- a resin sheet having needle-like projections formed by deforming a part of the resin sheet on both sides, the height of the projections being 3 mm or more, and / 2 relates to a three-dimensional structure in which the width W is H ⁇ 2.5W.
- the present invention relates to a three-dimensional structure having a curve having a radius of curvature of 5 mm or less in a cross section at the tip of the needle-like projection.
- the present invention also addresses a three-dimensional structure in which the tips of the needle-like projections are flat.
- the present invention also relates to a three-dimensional structure having a hole at the tip of the needle-like projection.
- the present invention relates to a three-dimensional structure joined to a sheet-like object at the tip of the needle-like projection. Furthermore, the present invention relates to a filter or a drain material, wherein a fibrous material is filled in the voids of the three-dimensional structure.
- the features of the manufacturing method of the present invention are as follows.
- the present invention relates to a resin sheet having a fluidity that is equal to or higher than the load deflection temperature of the resin, the height h of the protrusion is 3 mm or more, and the width w at 1/2 of h is h ⁇
- a large number of needle-shaped dies of 3 w are integrated with the substrate, a pair of the substrates are installed facing each other, and the needle-shaped dies of the pair of substrates move parallel to each other so as to penetrate the resin sheet.
- the resin sheet is It struggles with the method of manufacturing a three-dimensional structure that is deformed and cools or solidifies while maintaining the deformed state.
- a large number of the substrates are connected and fixed on a continuously circulating conveyor, and the conveyors are installed facing each other, and the temperature between the pair of continuously circulating conveyors is higher than the deflection temperature of the load.
- the pair of needle-shaped dies are penetrated into the resin sheet by a mechanism in which the heated resin sheet is continuously inserted and the substrate is moved vertically with respect to the resin sheet.
- a method for producing a three-dimensional structure characterized by forming protrusions on one surface of the resin sheet is inferior.
- the present invention simplifies a method for manufacturing a three-dimensional structure in which the tip of the needle-like protrusion on the surface of the three-dimensional structure is pressed against a heating roll to form a hole at the tip of the needle-like protrusion.
- the features of the manufacturing apparatus of the present invention are as follows.
- the above-mentioned con- verter is constituted by a cable villa
- the substrate is circulated by a vertical pin set up on the cable villa
- a substrate support pin provided on a side surface of the substrate is guided by a groove force.
- the present invention provides a resin sheet formed with a substrate by providing a release plate on a surface of the substrate, and a release plate support pin provided on a side surface of the release plate being guided by a groove cam.
- the present invention relates to an apparatus for manufacturing a three-dimensional structure that is configured to be continuously separated.
- the pins are vertically set on the conveyor, and the pins are passed through holes provided in the board, whereby the board is fixed to the conveyor, and the board is vertically suspended.
- TECHNICAL FIELD The present invention relates to an apparatus for manufacturing a three-dimensional structure, which is configured to be performed by a stand provided on both sides of a conveyor.
- the present invention is characterized in that needle-like projections are formed on both surfaces of a resin sheet.
- the resin is polyolefin such as polyethylene and polypropylene, polycarbonate, polyamide resin such as nylon 6 and nylon 66, and polyethylene terephthalate polybutane.
- Polyesters such as polyethylene terephthalate, vinyl resins such as polyvinyl chloride, acrylic resins such as polystyrene resins, methyl acrylate resins, fluorine resins such as tetrafluoroethylene, and thermoplastic resins such as polyvinyl alcohol resins are preferred.
- thermosetting resin such as an epoxy resin, a phenol resin, and a urea resin
- the above resins can be used not only alone but also in combination with each other by blending and the like.Addition of plasticizers, fillers, antioxidants, stabilizers, lubricants, etc. An agent or the like can be added for use.
- a biodegradable resin such as a polylactic acid-based polybutylene succinate-based resin and a photo-degradable resin such as a biketone-based polymer are also preferable.
- the present invention is directed to a soft three-dimensional structure, and a thermoplastic elastomer such as SBS or polyurethane can be used.
- the present invention has needle-like projections formed by deforming a part of the resin sheet on both sides of the resin sheet.
- the sheet is formed by molding the resin into a sheet shape. means.
- the sheet is not particularly uniform in thickness and includes what is usually called a film or membrane, but the thickness is preferably at least 10 / zm and at most 2 mm, more preferably at least 50 itm. Most preferably, it is 1 mm or less, and 100 ⁇ m or more and 0.5 mm or less. If it does not reach 10 m or exceeds 2 mm, stable molding is difficult.
- the present invention is characterized in that the resin sheet is a three-dimensional structure having needle-like protrusions formed by deforming a part of the resin sheet on one surface thereof.
- the force height can be increased, a structure having a large gap can be achieved, and a structure having a large heat insulating property can be achieved.
- it has projections on both sides like this This also increased flexibility.
- the projections in the upper layer and the projections in the lower layer can be wound in an intricate manner, so that even though the thickness is one layer thicker There is also an advantage that it can be wound up compactly.
- the three-dimensional structure means a three-dimensional structure having a protrusion on the ⁇ side of a planar sheet-like material.
- the needle-like projection of the present invention is characterized in that the height H is 3 mm or more.
- the height H of the protrusion is 3 mm or more, preferably 200 mm3 ⁇ 4 or less, more preferably 5 mm or more and 100 Omm or less, and 8 mm or more and 5 Omm or less. Is most preferred.
- the diameter is less than 3 mm, the force of the three-dimensional structure of the present invention cannot be satisfied, and when it exceeds 20 Omni, it is difficult to stably manufacture the elongated projection of the present invention. It may be. Therefore, since the three-dimensional structure of the present invention has projections on the surface, it was possible to obtain a structure having a thickness of at least 6 mm or more.
- the width W of the protrusion H of the present invention at the position No. 1 to No. 2 is H ⁇ 2.5 W.
- W is H ⁇ 2.5 W, preferably H ⁇ 100 W, more preferably H ⁇ 3W and H70 W, H ⁇ 5W and H ⁇ 50 W Is most preferred.
- H ⁇ 2.5 W it is not possible to satisfy the force resistance of the ⁇ -body structure of the present invention, and in the case of H> 100 W, the elongated projection of the present invention is stably maintained. This is because it may be difficult to manufacture.
- the protrusion does not necessarily mean only a symmetrical conical shape, and the cross section at W may have various shapes such as an ellipse, a square, and a triangle.
- the value of W is The smallest value in is adopted.
- the measurement of H and W is obtained by measuring the protrusion of randomly selected 30 points and calculating the arithmetic mean. Note that the above requirements for three-dimensional structures are requirements as “things”, and those manufactured by the manufacturing methods and manufacturing equipment described below do not necessarily require all of the above.
- the number of needle-shaped projections in the present invention mainly depends on the value of W in the present invention. However, in the present invention, it is necessary to provide a large number of needle-shaped projections because W is smaller than the height of the projections. It is characterized by being able to.
- a large number of needle-shaped protrusions means that the compressive strength is large, and a small W and a large H means that the material is flexible.Thus, the three-dimensional structure of the present invention is flexible but A structure with high compressive strength was obtained.
- the three-dimensional structure according to the present invention is characterized in that the tip of the needle-like projection has a curved surface, and its cross section preferably has a curve with a radius of curvature of 5 mm or less, more preferably 0.Ql mm. Most preferably, it is from 0.1 mm to 2 mm, and from 0.1 mm to 1 min. If the radius of curvature exceeds 5 mm, the tip is not sufficiently deformed, and there is still much luxuriousness and insufficient flexibility. By reducing the radius of curvature at the tip to 5 mm or less, the tip is also deformed, which reduces wasteful wall thickness at the tip and increases flexibility by reducing the area of the tip. By reducing the area of the tip, the number of protrusions can be increased.
- the tip of the needle-like projection of the three-dimensional structure of the present invention may be a flat surface.
- the flat surface may be formed by a molding step, but after molding the three-dimensional structure, the tip may be metabolized by heating, pressing or the like.
- the tip may be metabolized by heating, pressing or the like.
- This flat portion may leave the thickness of the raw resin sheet, but it is preferable that the thickness is deformed to be smaller than the thickness of the raw resin sheet.
- the three-dimensional structure of the present invention may have a structure having a hole at the tip of the needle-like projection.
- the present invention Since the present invention has needle-like projections on the ceramic surface, it has high air permeability and water permeability within a plane, but air permeability and water permeability may be required so as to penetrate the plane.
- air permeability and water permeability By providing a hole at the tip of the needle-shaped projection, air permeability and water permeability that penetrate such a plane can be ensured, and a porous three-dimensional structure having a unique structure that has never existed before can be obtained. did it. Filling the spaces between the protrusions with fibrous materials or other fillers and ventilating or permeating through the structure of the present invention combined in multiple layers can provide a filter function.
- reaction tank such as a sewage purification tank.
- reaction time can be increased.
- the shape and size of these holes are not particularly limited, and are determined depending on the application.
- the holes at the tips of these needle-shaped projections can be made by mechanically piercing, or by using a needle-shaped mold with the tip deformed and heated only at the tip to a high temperature. It is also possible to adopt a method in which heating is performed by using a method, or a method in which only the tip portion is sliced and removed after the resin protrusion is formed.
- the temperature of the roll is preferably equal to or higher than the glass transition temperature of the melting point of the resin sheet or, in the case of amorphous resin, more preferably equal to or higher than the thermal decomposition temperature of the resin.
- the three-dimensional structure of the present invention can be a structure in which a sheet-like material is formed at the tip of the needle-like protrusion. In the space formed inside the sheet structure layer, heat insulation can be maintained, the dimensional stability is improved, and the needle-like projection is prevented from moving to the left and right, so the compressive strength is also increased.
- the types of sheet materials to be joined are not only resin sheets similar to the sheets forming the three-dimensional structure of the present invention, but also materials having air permeability and water permeability such as woven fabric, knitted fabric, nonwoven fabric, net, paper, and heat-resistant. When high performance is required, metals such as aluminum foil and ceramic plates can be used. Perforated film on resin sheet is breathable Or when water permeability is required.
- a structure having a function such as a filter or a drain material By filling the space of the three-dimensional structure of the present invention with a fibrous material, a structure having a function such as a filter or a drain material can be obtained. Since the three-dimensional structure of the present invention has large voids and high compressive strength, by filling the space with a small filling density of fibrous materials, it can be used as a filter or drain material with a low rate of impairing air permeability and water permeability. can do. In this case, it is particularly preferable that the tip of the needle-like projection is joined to a sheet-like material.
- a large number of needle-shaped dies are integrated with a substrate for a resin sheet having a fluidity due to being higher than a deflection temperature under load of a resin.
- a pair of substrates are installed facing each other, and the needle-shaped molds of the pair of substrates move parallel to each other so as to penetrate the resin sheet, thereby deforming the resin sheet and cooling or maintaining the deformed state. It can be manufactured by solidification.
- the deflection S under load of the resin is determined by JISK7207 and is also called the heat distortion temperature.
- the B method that is, the bending stress applied to the test piece is 45.lNcnf.
- the resin sheet It can be deformed by a protruding shape, and the deflection temperature under load is preferably 30 or more, more preferably 50 or more, and most preferably 80 or more. Deformation is possible even when the deflection temperature under load is not reached, but it takes time to deform and the productivity is poor.
- the softening of the resin sheet is not only effected by the temperature effect, but also may be caused by chemical softening by a solvent or plasticizer, such as a water solvent in polyvinyl alcohol or a plasticizer in polychlorinated vinyl resin. It is required that the resin sheet has a temperature equal to or higher than the deflection temperature under load.
- the height h of the protrusion is preferably 3 mm or more, and the width w at 1/2 of h is preferably h ⁇ 3 w. .
- the needle-shaped mold is 3 mm or more, preferably 20 Omm or less, more preferably 5 mm or more and 100 mm or less, and 5 () 3111 1 Most preferably it is less than 1.
- the width w of the needle-shaped mold at a position 1/2 of the height h is h ⁇ 3 w, preferably h ⁇ 100 w, more preferably h ⁇ 5 w, and h ⁇ 7 Most preferably, 0 w, h ⁇ 10 w and h ⁇ 50 w.
- the needle-shaped mold does not necessarily mean only a symmetrical conical shape, and the cross section at w may have various shapes such as an ellipse, a square, and a triangle. In this case, the value of w adopts the smallest value in the cross section at 1h 2h
- h and w are measured by measuring 30 randomly selected protrusions and calculating the arithmetic mean.
- Many needle-shaped molds of the present invention are integrated with the substrate.
- the integration may be performed when the same material is integrally machined, but the needle-shaped mold may be joined to the substrate by means such as screwing, welding, or bonding with an adhesive.
- Another advantage of the thin and long needle-shaped molds in the manufacturing method of the present invention is that when a large number of the needle-shaped molds are installed facing each other, a machine is used between the opposed needle-shaped molds. If accuracy is not required and the needle-shaped molds of the pair of substrates move parallel to each other so as to penetrate the resin sheet, the needle-shaped protrusions facing each other must be penetrated through the sheet so as to avoid each other. However, the experimental results were confirmed.
- Still another advantage of the thin and long needle-shaped mold of the present invention is that, since it is needle-shaped, the needle-shaped mold as a device and the needle-shaped projections of the product have a small heat capacity, so that the cooling efficiency is good and the productivity is high. That is good. Further, in order to improve the compressive strength, not only the shape but also the molecular orientation effect due to the deformation at the time of melting given to the mold is large. The present invention also has a feature that the molecular orientation can be increased due to a large deformation rate and a large cooling efficiency.
- a large number of the substrates to which the needle-shaped molds are fixed are fixed on a conveyor that continuously connects and circulates.
- a pair of such conveyors are installed in a mutually traded manner, and a resin heated to a temperature not lower than the deflection temperature is continuously inserted between the pair of continuously circulating conveyors.
- a mechanism for vertically moving the substrate with respect to the inserted resin sheet causes a pair of needle-shaped dies to penetrate through the resin sheet and form projections on both sides of the resin sheet, thereby providing a continuous three-dimensional structure.
- the structure is formed.
- the needles of the present invention are long, so that the needle is obliquely inserted when the resin sheet is sandwiched, and stable molding cannot be performed.
- the substrate when sandwiching, the substrate is This problem was solved by moving vertically to Various means can be used for the vertical transfer of the substrate, and the transfer may be performed only vertically for the substrate or may be performed integrally with the conveyor.
- the vertical transfer of the boards may be such that both boards on a pair of conveyors are vertically transferred or only one board is vertically transferred.
- the present invention is characterized in that the resin sheet is a three-dimensional structure having needle-like projections formed by partially deforming the resin sheet on both surfaces. Therefore, a three-dimensional structure consisting of fine needle-like projections was able to be a three-dimensional structure having a high porosity, but having characteristics as a three-dimensional structure such as pressure resistance. Because less resin is used, resources are conserved, precious resources are not wasted, and there is less environmental impact during disposal. It also has performance characteristics such as light weight and large heat insulation. These high and light performances have traditionally been the role played by foams, but foams have problems such as poor wear and tear and poor air permeability and water permeability. The present invention has solved these problems by using a three-dimensional structure having a form different from that of the foam.
- the present invention is a three-dimensional structure composed of thin needle-like projections as described above, and has a flexible property despite having properties as a three-dimensional structure such as pressure resistance.
- the sheet used is kneaded with a resin (titanium oxide having a photo-etching medium effect) or activated carbon having a deodorizing function to form a sheet, and the sheet is used to form the three-dimensional structure of the present invention, the deformation rate is large. As a result, products having a large surface area can be obtained, and their functions such as titanium oxide and activated carbon can be fully exhibited.
- the three-dimensional structure of the present invention can be used as it is as a packaging material or a cushion material for precision machinery or the like by utilizing its flexibility and pressure resistance. It is light and resistant to water, and has other properties as a packaging material. Also, a plurality of the three-dimensional structures of the present invention can be used as a curing material, a filter, a drain material, and the like by utilizing the air permeability and water permeability in the sheet surface direction and the pressure resistance in the direction perpendicular to the surface. In addition, the three-dimensional structure of the present invention in which the tip of the needle-like projection is joined to a nonwoven fabric, cloth, net, film, etc.
- the space between the needle-shaped protrusions of the present invention is filled with a fibrous material or the like, and if necessary, the needle-shaped protrusions whose ends are bonded with a sheet-like material are used as heat insulating boards, filters, sewage treatment, and the like. It is used for livestock shed floors and human waste disposal.
- the means for continuously manufacturing the three-dimensional structure of the present invention is manufactured by continuously sandwiching a resin sheet in a mold provided with a pair of conveyors as in the related art because the length of the needle is long. I can't build it. Therefore, in the present invention, it is possible to provide a means for efficiently and continuously producing a three-dimensional structure having thin and long protrusions in the wall by means of shifting the mold on the conveyor perpendicular to the resin sheet.
- FIG. 1 is a perspective view showing an example of the three-dimensional structure of the present invention.
- FIG. 2 is a side view in which a part of the needle-like projection of FIG. 1 is taken out.
- FIG. 3 is another example of a side view in which a part of the state occurrence in FIG. 1 is taken out.
- FIG. 4 is a side view showing an example in which a sheet-like material is joined to the tip of the three-dimensional structure of the present invention.
- FIG. 5 is an example of the method for producing a three-dimensional structure of the present invention, and shows a part of the production means in a side view.
- FIG. 6 is a side view of a process in which an example of a means for forming a hole at the tip of a needle-like projection of the present invention is a conceptual diagram.
- FIG. 7 is a side view of a process showing, as a conceptual diagram, an example of a means for joining a sheet-like material to the tip of the three-dimensional structure of the present invention.
- FIG. 8 shows a continuous production apparatus of the present invention in a side view.
- FIG. 9 is a perspective view showing the groove cam portion of FIG.
- FIG. 10 P1 is a sectional view of the device of FIG.
- FIG. 11 shows in a perspective view the molded part of the device of FIG.
- FIG. 12 is a conceptual diagram showing the forming step of FIG.
- FIG. 13 is a side view of another continuous manufacturing apparatus of the present invention.
- FIG. 14 shows a cross-sectional view of the apparatus of FIG.
- FIG. 1 is a perspective view of a part of a three-dimensional structure 1 of the present invention, in which a number of needle-like projections 3a, 3b, 3c,. And a large number of downwardly extending needle-like projections 4a, 4b, 4c, and "".
- the upper needle-shaped projections 3a, 3b, 3c are arranged at a constant pitch p in the horizontal direction, and the rear needle-shaped projections 3d, 3e, 3f are fixed pitches from the row of 3a. They are arranged laterally at a constant pitch P behind p.
- the needle-like protrusions 4a, 4b, 4c projecting downward are behind the upper needle-like protrusions 3a, 3, 3c by p / 2 pitch, and are also moved by pZ2 in the lateral direction. Are arranged at a constant pitch J) in the horizontal direction.
- the lower rear needle-like projections 4 d, 4 e, and 4 f are behind the row of 4 a by a constant pitch p, and have a constant pitch! ) Are arranged horizontally.
- FIG. 2 is a side view showing only the needle-like projections 3a, 3b, and 3c of FIG.
- the height H of the needle-shaped protrusion and the width W of the protrusion at the height 12 are shown using the needle-shaped protrusion 3a as an example.
- the radius of curvature of the tip 5 of the projection is shown using the needle-like projection 3 as an example.
- a circle 6 inscribed in the surface of the tip 5 is defined as a curvature circle, and a radius R thereof is defined as a radius of curvature.
- an example of a structure in which the tip 7 of the projection is sliced and a hole is formed in the tip of the projection using the needle-like projection 3c as an example.
- the hole can be melted off at the tip or a small hole at the tip with a needle.
- FIG. 3 shows an example in which the tip portions of the needle-like projections 3a, 3b, 3c are 8a, 8b>, 8c to form the flat portions 9a, 9b 9c.
- the flat surface increases the bonding surface and improves the bonding strength.
- This flat portion 9 may leave the thickness of the sheet 2, but the thickness is deformed.
- the thickness of the sheet 2 is smaller than that of the sheet 2.
- FIG. 4 is a side view showing an example in which the sheet-like objects 11a and 11b are joined to the tips of the needle-like projections of the three-dimensional structure 1 in FIG. Due to the joining of the sheet-like material 11, the three-dimensional structure has a compressive force in which all the acicular protrusions receive the compressive force equally, so that the compressive strength is remarkably improved. Also, the bending strength of the sheet-like material 11 is significantly higher because the tensile strength and the compressive strength of the sheet-like material 11 resist bending.
- the sheet-like material 11 can have air permeability and water permeability, and have a function as a filter or a drain forest.
- the fibrous material 12 By filling the space between these three-dimensional structures with the fibrous material 12, the functions as a filter, a drain material, and a reaction tank could be further improved.
- FIG. 5 shows an example of a method for producing the three-dimensional structure 1 of the present invention, with a part of the apparatus in a side view.
- Needles 23 a, 23 b, and 23 c are fixed to the substrate 21 with nuts 26.
- the needle-shaped molds 23a, 23b, and 23c show only a part, and the needle-shaped molds are arranged on the plane of the substrate 21 at a constant pitch both in the horizontal direction and in the depth direction of the drawing. I have.
- the plane of the substrate 22 is provided on the upper surface facing the plane of the substrate 21, and the needle-shaped dies 24a, 24b, and 24c are fixed thereto.
- the needle-shaped dies 24a, 24b, and 24c are disposed at positions shifted from the needle-shaped dies of the substrate 21 by 1Z2 pitch in the horizontal direction and the depth direction. Then, between the substrate 21 and the substrate 22, the sheet 2 of the molten resin having a temperature equal to or lower than the load deflection temperature is guided, and while the substrate 21 is fixed, the substrate 22 moves up and down.
- the needles of the molds 23a, 23b, 23c and the needles 24a, 24b, 24c move relatively parallel. By this parallel movement, needle-like projections 3a, 3b, 3c, 4a, 4b, 4c are formed.
- FIG. 5 shows a state in which the substrate 22 is at the lowest position.
- Sheet 2 is a stroke of one vertical movement of the substrate 22, When a protrusion having a certain area is formed, the substrate 22 moves when it reaches the highest position, and the next substrate 22 moves up and down to form a needle-like protrusion in contact with the next certain area. You. In this way, by repeatedly forming a fixed area with the vertical movement stroke of the substrate 22, a three-dimensional structure having a large number of needle-like projections is continuously formed.
- the up and down strokes of the substrate 22 may be up and down movements using an air cylinder or a hydraulic cylinder, or up and down movements using a cam.
- the needle-shaped projections 3 and 4 of the present invention have a large deformation rate, a large surface area, and a large cooling efficiency, so that productivity is improved. However, holes are formed in the substrates 21 and 22 to further increase the cooling efficiency. It can be opened and cooling air can be introduced.
- FIG. 6 shows a means for inserting a hole into the tip of the needle-like projection of the three-dimensional structure of the present invention.
- a pair of heating rolls 31a, 31b is provided in the direction of travel of the standing structure 1 having the needle-shaped protrusions 3a, 3b, *, 4 &, 41>, ... on the surface of the resin sheet 2. It touches the tips of the needle-shaped projections 3 and 4, melts and removes the tips of the needle-shaped projections 3 and 4, and cools them with a pair of cooling rolls 32a and 32b to form holes 33 at the tips.
- a three-dimensional structure 35 having a, 33 b,..., 34 a, 34 b,.
- a heating conveyor, a hot air stream, a torch, etc. can be used instead of the heating roll 31, but in each case, the melting point is 30 to 5 or more higher than the melting point of the resin sheet (secondary transition point for amorphous polymer)
- the temperature is 100 or more, more preferably.
- FIG. 7 shows a means for joining the sheet-like objects of the three-dimensional structure 1 of the present invention.
- a set of heating rolls 41a in the direction of travel of the body structure 1 , 41b, and the sheet-like materials 42a, 42b are guided to the roll, heated and softened by the heating roll 41, and touched the tips of the needle-like projections 3, 4 to obtain the needle-like projections 3, 4.
- the three-dimensional structure 43 is joined to the tip of 4 and the sheet-like material is joined to the heating roll 41.
- the heating roll 41 is different from the heating roll 31 in FIG.
- the temperature should rather be a temperature having a function of cooling the molten resin. If the sheet-like material 42 changes its properties by heating, such as a microporous membrane or nonwoven fabric, or if it is difficult to join by heating alone, such as a woven fabric or net, the temperature of the heating roll should be increased. Since it is difficult, the three-dimensional structure 1 and the sheet-like material 42 can be easily led to the adhesive webs 44a and 44b, and bonded by the adhesive web 44.
- the adhesive web 44 is formed so as not to impair the gas permeability and the like.
- the adhesive web 44 is a non-woven fabric or a net-like material. It is preferable to arrange them and join them.
- the adhesive web 4 4 is not used, and the adhesive is applied to the joint surface of the sheet-like material 4 2 or the tips of the needle-like projections 3 and 4 of the three-dimensional structure 1.
- the three-dimensional structure 43 to which the objects are joined can be manufactured.
- FIG. 8 shows an example of continuously producing the three-dimensional structure of the present invention.
- Fig. 8 shows the whole device in side view.
- a conveyor that continuously circulates between rollers 60 and 61, a taper 644 a is used, and between rollers 62 and 63, a roller 644 b that is paired with the roller 644 a circulates.
- a large number of vertical pins 74 are provided at regular intervals in the katavilla 64 (only a part is shown for PI because it is complicated).
- a large number of substrates 70 having a large number of needle-like projections (omitted in the figure) on the surface shown in FIG. 5 are fixed to the kyecuring by passing holes through vertical pins 74. Then, it is shown that the resin sheet 80 as a raw material is formed at the portion of the groove cam 65 to become the three-dimensional structure 81.
- FIG. 9 shows the groove cam 65, in which the substrate guide grooves 66, 67 and the release plate guide grooves 68, 69 are formed in the plate.
- Fig. 10 shows the cranes 64, the vertical pins 74 standing on them, the substrate 70 on which a large number of needles 71 are planted, and the needles corresponding to the needles 71.
- a release plate 72 having a through hole 73, a substrate pin 75 provided on a side surface of the substrate 70, and a release pin 76 provided on a side surface of the release plate 72 are shown.
- the board pins 7 5 and the release plate pins 76 are guided by the respective grooves of the groove cam 65 in FIG.
- Fig. 11 is an overall view of the device shown in Fig. S, which is a cross-sectional view from the front.
- FIG. 12 shows a groove cam 65 in the overall view of the apparatus shown in FIG. 8, and shows a needle-shaped mold 71 1 formed on a substrate 70 with respect to a resin sheet 80 as a raw material. And how the release plate 72 works.
- step ⁇ at the entrance of the groove cam 65, both the needle-shaped mold 71 and the release plate 72 still attached to the substrate 70 are separated from the resin sheet 80.
- step B the upper and lower needle-shaped molds 71 move perpendicular to the resin sheet 80 and penetrate the resin sheet 80.
- step C first, the needle-shaped mold 71 is separated from the molded three-dimensional structure 81, and then separated.
- the template 72 shows a state where it is still left on the formed three-dimensional structure 81 side.
- Step D shows a state in which the release plate 72 is also separated from the three-dimensional structure 81.
- the vertical movement of the substrate 70 and the release plate 72 with respect to the resin sheet is performed by the guide grooves 6 and 7 for the substrate provided on the groove cam 65 and the guide groove 6 8 for the release plate. Is performed along the trajectory of ⁇ 9.
- FIG. 13 and FIG. 14 show other means for continuously forming the sheet-like material of the three-dimensional structure 1 of the present invention.
- FIG. 13 is a side view of the apparatus as viewed from the lateral direction
- FIG. 14 is a cross-sectional view taken along planes A-B and B-B of FIG.
- Conveyor 103 is circulating between rollers 101 and 102. At both ends of the conveyor 103, a large number of pins 104a and 104b (only some of them are shown in the figure for simplicity) are planted at regular intervals. Pins 104 of the conveyor 103 have substrates 105a and 105b having a large number of needle-like projections (omitted in the figure) on the surface shown in FIG. Is fixed.
- the conveyor 103 is magnetized by means such as magnetic rubber, magnetic plastic, or a magnet embedded therein, so that the substrate 103 is fixed on the conveyor 103 by the magnetism of the conveyor 73. Is done.
- the conveyer 103 and the conveyer 106 that circulates at a constant speed in a pair with the conveyer 103 below face each other and approach each other, the board 110 105 moves away from the conveyor 103 surface and gradually moves on the pins 104 in the direction of the original resin sheet 2 in the vertical direction. After that, there is a distance to move in parallel with the conveyor 103, and then the gantry 110 is moved down to the conveyor 103 side again by the downward inclination.
- Conveyor 106 which is paired with conveyor 103, circulates between rollers 107, 108 at the same speed as conveyor 103, and similarly a large number of pins 1 1 1a, 1 1 1b and a number of substrates 1 1 2a and 1 1 2b fixed thereto.
- the pins 1 1 1 and the boards 1 1 2 of the conveyor 106 that circulate in the relationship that is paired with the conveyor 103 are also It is pushed up and moves perpendicular to the resin sheet 2. Due to the vertical transition between the substrate 105 and the substrate 112, needle-like projections provided on the substrates 105 and 112 (not shown in the figure) via the resin sheet 2 running in the middle of the user.
- the needles move parallel to each other and penetrate into the resin sheet 2 to form a sheet 114 having needle-like projections on both sides of the resin sheet 2.
- the heating device or the heat retaining device for the inserted resin sheet 2 is omitted, and the cooling device for the resin sheet after the needle-like projections of the substrate have penetrated each other is also omitted.
- FIG. 10 shows an example in which both substrates 105.112 move vertically, only one of them, for example, only the substrate 112 may move vertically.
- FIG. 14 is a cross section taken along line A--A in FIG. 13, and FIG. B is a cross section taken along line B--B. Only the upper device in FIG. 13 is shown.
- the gantry 110 is installed outside the conveyor 113. When the substrate 115 returns to the conveyor 103 side, a guide rail for pushing down the substrate 105 can be provided on the side of the conveyor 103 opposite to the gantry 110 shown in FIG. It is preferable that the gantry and the guide rail are made of small rollers or bearings in order to reduce friction, and that a material having a small friction coefficient or a lubricant can be used.
- Example 1 Example 1
- the three-dimensional structure of the present invention has excellent pressure resistance despite having flexibility, and also has water permeability and heat insulation, so that it is used as a buffer sheet, a cushion sheet, a partition, a floor material, and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004213306A AU2004213306B2 (en) | 2003-02-19 | 2004-02-19 | Three-dimensional structure, and method and device for producing the same |
EP04712698A EP1598168B1 (en) | 2003-02-19 | 2004-02-19 | Method and device for the manufacture of a three-dimensional structure |
JP2005502766A JP4302103B2 (ja) | 2003-02-19 | 2004-02-19 | 立体構造物の製造方法および製造装置 |
US10/546,224 US7488169B2 (en) | 2003-02-19 | 2004-02-19 | Three-dimensional structure and method and apparatus for manufacture thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-083871 | 2003-02-19 | ||
JP2003083871 | 2003-02-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004073958A1 true WO2004073958A1 (ja) | 2004-09-02 |
Family
ID=32905954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/001893 WO2004073958A1 (ja) | 2003-02-19 | 2004-02-19 | 立体構造物およびその製造方法および製造装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7488169B2 (ja) |
EP (1) | EP1598168B1 (ja) |
JP (1) | JP4302103B2 (ja) |
AU (1) | AU2004213306B2 (ja) |
WO (1) | WO2004073958A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006212937A (ja) * | 2005-02-03 | 2006-08-17 | Kawakami Sangyo Co Ltd | 管状体により成形された立体構造物、その製造方法およびその製造装置 |
EP1738891A1 (fr) * | 2005-06-29 | 2007-01-03 | Smurfit Kappa France SAS | Procédé perfectionné de fabrication d'un emballage en un matériau semi-rigide, à l'intérieur duquel est thermoformée une pellicule de protection en matière plastique |
JP2011068132A (ja) * | 2010-11-17 | 2011-04-07 | Kawakami Sangyo Co Ltd | 管状体により成形された立体構造物 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105050742A (zh) * | 2012-08-13 | 2015-11-11 | 泰斯雷体德集团公司 | 用于将片材折叠成支撑结构的设备 |
JP6363834B2 (ja) * | 2013-03-19 | 2018-07-25 | 岐阜プラスチック工業株式会社 | 中空構造体とこれの製造方法 |
JP6296835B2 (ja) * | 2014-03-06 | 2018-03-20 | キヤノン株式会社 | シート処理装置、シート処理装置の制御方法およびプログラム |
US10324008B2 (en) * | 2015-12-22 | 2019-06-18 | George Mason Research Foundation | Compositions and methods for laser capture microdissection |
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JPS4875678A (ja) * | 1971-11-29 | 1973-10-12 | ||
JP2000017091A (ja) | 1998-06-29 | 2000-01-18 | Hitachi Ltd | 表面改質層を有するフッ素樹脂成形体、フッ素樹脂の表面処理方法、及び処理装置 |
JP2001009908A (ja) * | 1999-06-30 | 2001-01-16 | Kao Corp | 孔付き凹凸シートの製造方法 |
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BE756524A (fr) * | 1969-09-23 | 1971-03-23 | Bp Chem Int Ltd | Machine a mouler |
DE2203206A1 (de) * | 1971-01-28 | 1972-08-10 | Mario Panontin | Warzenplatte mit offenen Zellen,zur Herstellung von Bauplatten,Waenden u.dgl. geeignet,sowie Verfahren zur Herstellung derselben |
US3905290A (en) * | 1972-12-21 | 1975-09-16 | Robert A Caughey | Self-feeding press for producing strip material |
US3963813A (en) * | 1974-12-24 | 1976-06-15 | The United States Of America As Represented By The Secretary Of The Navy | Cuspated sheet forming |
AU7329881A (en) * | 1981-06-19 | 1983-01-04 | Australian Applied Research Centre | Method for manufacturing webs of plates of thermoplastic material comprising, on one side or on both sides, a multitude of protuberant profiles |
JPS58205732A (ja) * | 1982-05-26 | 1983-11-30 | Asahi Chem Ind Co Ltd | 連続成形装置 |
JPS6215330A (ja) | 1985-07-13 | 1987-01-23 | Hara Shiyokuki Seisakusho:Kk | コ−マのニツパフレ−ムの揺動方法および装置 |
US4824354A (en) * | 1988-02-16 | 1989-04-25 | Keaton Clyde D | Hydraulic continuous press with improved drive |
JPH03288635A (ja) * | 1990-04-05 | 1991-12-18 | Hokkai Can Co Ltd | 合成樹脂製容器の製造装置 |
JP3030943B2 (ja) | 1991-06-29 | 2000-04-10 | 株式会社セガ・エンタープライゼス | ゲーム装置と、ゲームデータ保存方法 |
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2004
- 2004-02-19 JP JP2005502766A patent/JP4302103B2/ja not_active Expired - Fee Related
- 2004-02-19 US US10/546,224 patent/US7488169B2/en not_active Expired - Fee Related
- 2004-02-19 EP EP04712698A patent/EP1598168B1/en not_active Expired - Lifetime
- 2004-02-19 WO PCT/JP2004/001893 patent/WO2004073958A1/ja active Search and Examination
- 2004-02-19 AU AU2004213306A patent/AU2004213306B2/en not_active Ceased
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JPS4875678A (ja) * | 1971-11-29 | 1973-10-12 | ||
JP2000017091A (ja) | 1998-06-29 | 2000-01-18 | Hitachi Ltd | 表面改質層を有するフッ素樹脂成形体、フッ素樹脂の表面処理方法、及び処理装置 |
JP2001009908A (ja) * | 1999-06-30 | 2001-01-16 | Kao Corp | 孔付き凹凸シートの製造方法 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006212937A (ja) * | 2005-02-03 | 2006-08-17 | Kawakami Sangyo Co Ltd | 管状体により成形された立体構造物、その製造方法およびその製造装置 |
JP4671401B2 (ja) * | 2005-02-03 | 2011-04-20 | 川上産業株式会社 | 管状体により成形された立体構造物の製造方法およびその製造装置 |
EP1738891A1 (fr) * | 2005-06-29 | 2007-01-03 | Smurfit Kappa France SAS | Procédé perfectionné de fabrication d'un emballage en un matériau semi-rigide, à l'intérieur duquel est thermoformée une pellicule de protection en matière plastique |
FR2887858A1 (fr) * | 2005-06-29 | 2007-01-05 | Smurfit Socar Packaging Soc Pa | Procede perfectionne de fabrication d'un emballage en un materiau sem-rigide, a l'interieur duquel est thermoformee une pellicule de protection en matiere plastique |
JP2011068132A (ja) * | 2010-11-17 | 2011-04-07 | Kawakami Sangyo Co Ltd | 管状体により成形された立体構造物 |
Also Published As
Publication number | Publication date |
---|---|
AU2004213306B2 (en) | 2009-01-15 |
EP1598168B1 (en) | 2011-08-10 |
JPWO2004073958A1 (ja) | 2006-06-01 |
AU2004213306A1 (en) | 2004-09-02 |
US7488169B2 (en) | 2009-02-10 |
JP4302103B2 (ja) | 2009-07-22 |
US20060083807A1 (en) | 2006-04-20 |
EP1598168A4 (en) | 2008-02-13 |
EP1598168A1 (en) | 2005-11-23 |
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