WO2006025596A1 - 片面に針状突起を有する立体構造物 - Google Patents
片面に針状突起を有する立体構造物 Download PDFInfo
- Publication number
- WO2006025596A1 WO2006025596A1 PCT/JP2005/016458 JP2005016458W WO2006025596A1 WO 2006025596 A1 WO2006025596 A1 WO 2006025596A1 JP 2005016458 W JP2005016458 W JP 2005016458W WO 2006025596 A1 WO2006025596 A1 WO 2006025596A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- needle
- sheet
- dimensional structure
- protrusions
- resin sheet
- Prior art date
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- 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
- B29C51/006—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 for making articles having hollow walls
-
- 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
-
- 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
Definitions
- the present invention relates to a manufacturing method and a manufacturing apparatus for manufacturing a three-dimensional structure having thin and high needle-like protrusions on one side by a resin, with good productivity, and an object is sealed in the protrusion, and the needle By joining another sheet-like object to the bottom of the protrusions, a new three-dimensional structure having a new function and a plurality of sheets composed of structures having the needle-like protrusions are connected. It relates to a three-dimensional structure. Background art
- a structure having a high height relative to the width of the protrusions of the needle-like protrusions is difficult to remove from the mold of the molded product, and it is difficult to stably manufacture the structure.
- this disclosed structure has a thick tip of the formed protrusion, and the used grease is not effectively used, which is not only a wasteful immense, but also this structure Heat melting to join with other sheets When doing so, a lot of heat energy is required for melting, and the tip of the protrusion may be deformed by the excessive heat, and the quality may not be stable.
- this disclosed structure is only required to have a high height and a high compressive strength, and the cavities inside the protrusions have not been actively utilized.
- the present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and the object of the present invention is to use a thermoplastic sheet as a structure having pressure resistance despite being bulky and flexible.
- the object is to provide a means for producing a three-dimensional structure continuously and stably.
- Another object is to provide a structure in which the thickness of the tip of the projection structure of the present invention is reduced.
- the purpose of the other 1, the cavity of the inner portion of the one side projection of the present invention, and it causes filling the object and by the other of the sheet is engaged against the bottom surface of the needle-like projections, the packaging material It is to provide a three-dimensional structure that performs a new function such as #.
- the present invention is characterized by having needle-like protrusions on one side of the resin sheet.
- the resin is polyolefin such as polyethylene or polypropylene, polycarbonate, polyamide resin such as nylon 6 or nylon 66, polyethylene terephthalate or polybutylene Heat of polyester such as phthalate, bur resin such as polyvinyl chloride and polyvinylidene chloride, acrylic resin such as polystyrene resin, methyl acrylate resin, fluorine resin such as polytetrafluoroethylene, polyvinyl alcohol resin, etc. Plastic resin is preferred.
- thermosetting resin such as an epoxy resin, a phenol resin, or a urea resin
- the above resins can also be used in combination with a resin such as a plend, and additives such as plasticizers, fillers, antioxidants, stabilizers, lubricants, etc. Etc. can also be used.
- biodegradable resins such as polylactic acid-based lipopolysuccinates and photodegradable resins such as vinyl ketone-based polymers are also preferred.
- the present invention is also intended for soft three-dimensional structures.
- Thermoplastic elastomers such as SBS and poly; urethane can also be used.
- the present invention has a needle-like projection formed by deforming a part of the resin sheet on one side of the resin sheet.
- the sheet is formed by molding the resin into a sheet shape.
- the thickness of the sheet is not particularly limited, and includes what is usually referred to as a film or film. However, the thickness is preferably 10 ⁇ or more and 2 mm or less, more preferably 5 O / xm or more. In this case, it is most preferably 1 mm or less, and 100 mm / xm or more and 0.5 mm or less. If it does not reach 10 / xm or exceeds 2 mm, stable molding is difficult.
- the present invention is a three-dimensional structure having a large number of needle-like protrusions formed by deforming a part of the resin sheet on one side of the resin sheet. This is because, by having a protrusion on one side, the strength of the force can be increased, a structure with a large gap can be formed, and a structure with high heat insulation can be formed. Also, the needle-like protrusion on one side like this Having an uplift could increase flexibility.
- the term “many” means that there are 10 or more protrusions on the resin sheet, preferably several 10 pieces, and if large, several hundred or several thousand protrusions.
- the present invention is also characterized in that sheets having a large number of protrusions are produced continuously.
- the number of needle-like protrusions can be increased compared to double-sided protrusions, so that the compressive strength can be increased; Peel strength is strong, and the smoothness of the sheet surface is improved.
- a large number of needle-shaped molds are integrated with a substrate for a resin sheet having fluidity due to being higher than the deflection temperature of the resin.
- the needle-shaped mold of the substrate moves vertically with respect to the resin sheet and penetrates into the resin sheet, thereby deforming the resin sheet ⁇ ; and; cooling or solidifying while maintaining the deformed state
- the deflection temperature under load of the resin is determined according to JISK 7: 2 0 7 and is also called the heat distortion temperature.
- Method B ie, applied to specimen: Bending stress is 4 5 1 N per square centimeter.
- the resin sheet can be deformed by needle-like protrusions: preferably 3 O X: more than the deflection temperature, more preferably 5 or more, most preferably 8 O iC or more. Deformation is possible even when the deflection temperature under load is not reached, but it takes time to deform and productivity is poor.
- the softening of the resin sheet is not only due to the temperature effect, but may be chemically softened by a solvent or a plasticizer such as an aqueous solvent in polyvinyl alcohol or a plasticizer in a poly salt resin resin. Even in this case, it is required that the resin sheet has a temperature higher than the deflection temperature under load.
- the height h of the protrusion is 3. mm or more and the width w of 12 of h is h ⁇ 3 w.
- the needle-shaped mold is a needle-like elongated shape, and the diameter of the needle may be constant, but may be a tapered shape. This is because, by adopting such a shape, a long and narrow needle-like protrusion can be realized, and a flexible but pressure-resistant three-dimensional structure of the present invention can be realized.
- the height h of the needle-shaped mold is 3 mm or more, preferably 20 mm or less, more preferably 5 mm or more and 10 O mm or less, and 8 mm or more and 5 mm or less. Most preferably, it is O mm or less. If it does not reach 3 mm, the bulkiness of the three-dimensional structure of the present invention cannot be satisfied, and if it exceeds 20 O mm, it is difficult to stably produce the elongated protrusions of the present invention. There is a case.
- the width w at the position of 1 Z 2 of the height h of the needle-shaped mold is h ⁇ 3 w, preferably h ⁇ l; 0, O w, more preferably h ⁇ 5 w and h Most preferably, ⁇ 7 0 w, h ⁇ 1 O w and rt h ⁇ 5 O w. :
- h ⁇ 3 w there are cases where it is not possible to satisfy the kaza height as the three-dimensional structure of the present invention, and in the case of h> 10 O w, the elongated protrusions of the present invention can be manufactured stably. This is because it may be difficult.
- the needle-shaped mold does not necessarily mean only a conical symmetrical shape.
- the cross section in w may have various shapes such as an ellipse, a square, and a triangle. In this case, the smallest value in the cross section at 12 h is adopted as the value of w. Note that h and w are measured by measuring 30 randomly selected protrusions and calculating the arithmetic average.
- the two bodies may be integrally machined with the same material, but may be joined to the substrate by means such as screwing, welding, adhesive bonding, or caulking.
- Another advantage of the thin and long needle-shaped mold according to the present invention is that it has a needle-like shape. Therefore, both the needle-shaped mold as the device and the needle-shaped projection of the product have a small heat capacity, so the cooling efficiency is good and the productivity is high. It ’s good. Also, to improve compressive strength, just shape In addition, the molecular orientation effect due to the deformation at the time of melting applied during molding is also great.
- the present invention is also characterized in that the molecular orientation can be increased due to the high deformation rate and the high cooling efficiency.
- a perforated pressing plate having holes corresponding to a large number of needle-shaped protrusions is provided on the back surface of the resin sheet, and the needle-shaped mold penetrates the resin sheet. When it does, it is arranged to support the resin sheet from the back. Then, by moving in a direction perpendicular to the resin sheet so that the needle-shaped mold fits into the hole of the perforated presser plate, the resin sheet is deformed to form needle-shaped protrusions on one side of the sheet.
- the This perforated presser plate is a function that mechanically supports the force of the needle-shaped mold that is inserted (or penetrated) from the back of the sheet, and the shape that determines the diameter of the protrusion formed on the surface of the resin sheet. It functions as a factor. Even if the same needle-shaped mold is inserted, the three-dimensional structure having different diameters (ie, W) can be obtained by changing the hole diameter of the perforated pressure plate. It is desirable that the hole entrance and exit of the perforated retainer plate be chamfered so that no flaws occur during molding. In addition, it is desirable that the surface of the perforated pressure plate has a surface treatment with a releasing agent such as a silicon or fluororesin releasing agent.
- a releasing agent such as a silicon or fluororesin releasing agent.
- a pressurized air chamber is provided behind the perforated presser plate and Z or the substrate in the manufacture of the three-dimensional structure in the present invention.
- the back means the side opposite to the side where the resin sheet is molded.
- a pressurized air chamber is a room where gas is maintained in a pressurized state or a negative pressure state.
- the perforated pressing plate and the substrate are provided with holes or slits for guiding the gas from the compressed air chamber to the resin sheet side where the needle-like protrusions are formed.
- a hole opened at a position corresponding to the needle-shaped mold can be used as it is.
- the gas is usually air ", but avoid resin acid.
- the air pressure in the compressed air chamber causes air to be ejected to the resin sheet side where the needle-like protrusions are formed, so that the molded resin sheet is stably separated from the perforated pressing plate and the substrate. Also from this aspect, the molding is stable and the molding speed can be increased.
- the ability of air to flow also has the effect of cooling the formed needle-like protrusions and the perforated pressing plate.
- the tip of the needle-shaped protrusion tends to be thick.
- this negative pressure suction may make the tip of the needle-shaped protrusion thin. It has features that can. By thinning the tip of the needle-like protrusion, the needle-like protrusion becomes flexible, and when the tip of the needle-like protrusion is joined to another sheet-like material, the tip is easily melt-bonded.
- the substrate integrated with the acicular mold in the production of the three-dimensional structure in the present invention is preferably provided with a release plate having holes corresponding to the protrusions of the acicular mold on the surface of the substrate. .
- the mold release plate moves perpendicularly to the direction of the resin sheet, so that the needle-shaped mold and the three-dimensional structure formed can be reduced. Can be separated at a constant rate, and the molding speed can be increased.
- This release plate is preferably made of a metal such as aluminum, copper, stainless steel or steel. This is because the heat release capacity of the metal release plate cools the needle-shaped mold and the molded three-dimensional structure so that it is molded stably and the molding speed increases. Since the needle-like projections of the present invention are thin and have a high height, it is necessary to make it possible to release the mold stably by moving such a release plate vertically.
- This means of vertical release of the release plate is performed by a vertical transfer guide, and in addition to those exemplified in the section of the best means for carrying out the invention, means for guiding using magnetism, negative pressure suction
- the vertical transfer guide using force and pressure can be used to move the substrate, release plate, perforated presser plate, etc.
- the release plate in the present invention can also be provided on the perforated pressing plate side. If the tip of the needle-like protrusion of the three-dimensional structure formed by a needle-shaped mold or the like is protruding to the back of the perforated holding plate, the release plate moves vertically through the tip of the protruding needle-like protrusion. Then, it can be pressed, and conversely, it can be pushed into the perforated pressure plate. In that case, the perforated pressing plate may be a flat plate.
- Such a release plate of the perforated pressure plate ⁇ is particularly effective when the three-dimensional structure of the present invention is a hard resin such as hard vinyl chloride resin or polycarbonate resin.
- a number of small holes can be provided in the release plate provided on the perforated pressing plate side, and a compressed air chamber can be provided behind the small holes.
- the arm that is fed from the pressure chamber cools the tip of the needle-like protrusion through the small hole, and pushes the tip of the needle protrusion with this release plate integrated with the pressure chamber. It is desirable to be configured as described above.
- this compressed air chamber sucks air as a negative pressure suction chamber in the initial stage of forming the needle-like projections, thereby helping to form the needle-like projections and stabilizing the molding. The quality of the molded product can be improved.
- the needle-shaped mold is penetrated by the resin sheet by the vertical transition guide that moves the substrate in the vertical direction, and the projection is formed on one side of the resin sheet, so that the three-dimensional structure is continuously formed. Molded.
- the needles of the present invention are long, so that when the resin sheet is sandwiched, the needles are stuck diagonally and stable molding cannot be performed.
- this problem is solved by vertically shifting the perforated presser plate to the resin sheet when sandwiched.
- Various means can be used for the vertical transfer of the perforated pressing plate of the substrate, and the transfer may be performed only for the substrate or may be performed integrally with the competitor. ;
- the position of the hole of the perforated pressure plate provided in the conveyor B has means for synchronizing with the position of the needle-shaped needle, for example, the position of the traveling needle-shaped hole perforated pressure plate, They are mechanically, electromagnetically, and optically sensed and controlled so that their positions are synchronized.
- Kitabira as a bear or This is an example of a vertical transfer guide that uses a side wall of a guide groove such as a substrate to move vertically to an inserted resin sheet.
- a vertical transition guide in which only a substrate on a conveyor is pushed up or down by sliding on a frame. Details of these means are exemplified in the section of the best means for carrying out the invention, a vertical transition guide for moving the substrate up and down using magnetism, and a substrate using negative pressure suction force and pressure air.
- vertical transition guides that move up and down.
- the compressed air chamber does not need to be circulated with the conveyor.
- the compressed air chamber can be fixed at a fixed position. This is because the compressed air chamber requires devices such as air piping and pressure seals, so that the device can be simplified.
- the vacant chamber may be provided on the perforated holding plate side or on the substrate side integrated with the needle-shaped mold, but can be provided on both sides. Since the three-dimensional structure of the present invention has a high height relative to the width of the needle-like protrusions of the molded body, it is necessary to detach the molded body from the needle-shaped mold and the perforated pressing plate. At this time, it is preferable that the molded body is cooled. By doing so, we were able to produce continuously and stably, and we were able to increase production speed.
- the release plate circulates with Yumbea. And in the above-mentioned guide groove side wall slide slide system, the release plate provided on the substrate circulates together with the substrate, and by the same mechanism as the substrate perforated holding plate, by the vertical pins set up on the conveyor , It can take the method of moving in the vertical direction.
- the three-dimensional structure of the present invention has a high height with respect to the width of the needle-like protrusions of the molded body, so that it is necessary to smoothly remove the molded body from the needle-shaped mold. It is preferred that the body is cooled.
- the release plate functioned for both, and it was possible to produce continuously and stably, and the production speed could be increased.
- the needle-like protrusions manufactured according to the present invention preferably have a height H of 3 mm or more. Further, the width W at the position of 1 Z 2 of the height H of the projection of the present invention is characterized in that H ⁇ 2 W. This is because the function of the three-dimensional structure of the present invention can be exhibited when the height H is large with respect to W.
- W is preferably H ⁇ 2.5 W and H ⁇ 5 OW, more preferably H ⁇ 3W and 3 OW, and H ⁇ 5W and H ⁇ 1 OW. preferable. By setting it within these ranges, it is possible to increase the kaza height and porosity, and to make the structure more flexible.
- the elongated protrusion of the present invention can be manufactured stably. This is because it may be difficult.
- the protrusion does not necessarily mean only a conical symmetrical shape, and the cross section at W may have various shapes such as an ellipse, a square, and a triangle, or a mixture thereof. In this case, the smallest value in the cross section at ⁇ 1 2 H is adopted as the value of W.
- H and W do not need to be constant, and various Ws may be mixed. H and W are measured by measuring 30 points selected at random and calculating the arithmetic mean.
- the tip of the needle-like protrusion has a curved surface, and the radius of curvature in the cross section preferably has a value of R ⁇ WZ 2, and more preferably 0.O. Most preferably, it is from l mm to 0.3 Wmm, and from 0.1 mm to 0.2 Wmm.
- WZ 2 mm
- the tip is not sufficiently deformed, and there are still many expenses and insufficient flexibility.
- the radius of curvature of the tip is also deformed, reducing wasteful extravagance at the tip and increasing the flexibility by reducing the tip area. Furthermore, by reducing the area of the tip, the number of protrusions can be increased.
- the tip of the needle-like protrusion of the three-dimensional structure of the present invention can be a flat surface.
- the flat surface may be formed by a forming process, but can also be achieved by flattening the tip after manufacturing the three-dimensional structure.
- This flat portion may leave the thickness of the raw material resin sheet, but it is preferable that the thickness is deformed to be smaller than the thickness of the raw material resin sheet.
- the three-dimensional structure of the present invention can have a structure having a hole at the tip of the needle-like protrusion. Since the present invention has needle-like protrusions on one side, air permeability and water permeability are large in the plane, but air permeability and water permeability may be required so as to penetrate the plane. By providing a hole in the tip of the needle-like protrusion, it is possible to secure a breathability and a water permeability that are poor in such a flat surface, and a porous three-dimensional structure having an unprecedented unique structure. It was possible.
- these «i-like substances and packings can be used as reaction tanks such as sewage septic tanks by having reaction aids and catalytic action. In this case, there is an advantage that the reaction time can be increased.
- the shape and size of these holes are not particularly limited and are determined by the application.
- These needle-shaped protrusions can be made with the following methods: mechanically piercing, or with a needle that has been deformed by the needle-shaped mold of the device and only the tip is heated to a high temperature. It is also possible to adopt a method of slicing and removing only the tip portion after the means for heating with, for example, a resin protrusion is formed.
- the roll temperature is preferably equal to or higher than the glass transition temperature and more preferably equal to or higher than the thermal decomposition temperature in the case of the melting point of the resin sheet or the amorphous resin.
- the three-dimensional structure of the present invention is a single-sided projection, it has a cavity inside the projection,
- An object can be filled in the cavity, and a structure having a new function can be obtained.
- the three-dimensional structure of the present invention has a thin and high protrusion, the surface area is large, and by using this, a heat storage material, a heating medium or a cooling medium is put into an object, and a fluid is provided between the protrusion and the protrusion. It is possible to make a heat exchange structure with a good heat exchange ratio, such as a cooling tower.
- the object filled in the protrusion is a sealing agent, when this three-dimensional structure is overlapped and joined together, it is a structure with a wide area that prevents water leakage etc. with the sealing agent. be able to.
- the three-dimensional structure of the present invention may be a structure joined to a sheet-like object on the bottom surface of the needle-like protrusion.
- the object is a solid such as a heat storage material or a viscous object such as a sealing agent, it may not be necessary to hold the object (contents) by joining such sheet-like materials. However, if the contents do not stay stably inside, such as gas, liquid, or particulate matter, it is desirable to join the sheet to the bottom.
- a resin sheet or film or aluminum foil similar to the sheet for forming the three-dimensional structure of the present invention is joined.
- a perforated film such as a microporous membrane, non-woven fabric, paper, woven fabric, knitted fabric, net, etc.
- a material having properties and water permeability is used.
- metals such as aluminum foil, ceramic plates, etc. can be used.
- the internal structure is air, so that the three-dimensional structure has an elastic cushioning property against the compressive force. Will also improve dramatically. In addition, by increasing the compressive strength and elasticity of the three-dimensional structure in this way, the thickness of the resin sheath that forms the needle-like protrusions can be reduced.
- the sealing material on the bottom of the needle-shaped protrusions is a breathable sheet such as non-woven fabric or paper, and this structure is used as a packaging material (or packaging material), the leachate and evaporation material from the package contents will be removed from the cavity. It can be held inside.
- the non-woven fabric absorbs anti-mold agents such as machine oil leaked from the machine and holds it inside the needle-like projections of this three-dimensional structure, and the outside of the package. Can be prevented from leaking.
- the package contents are seafood or vegetables, the liquid leached from them is absorbed by the non-woven fabric and held inside the needle-like projections of this three-dimensional structure, and flows out of the package. Can be prevented.
- the bottom of the needle-like projections should be sealed with a breathable sheet such as a non-woven membrane or paper, and the inside of the needle-like projections must be filled with a gas absorbent such as activated carbon, silica gel, or oxygen absorbent.
- a gas absorbent such as activated carbon, silica gel, or oxygen absorbent.
- the three-dimensional structure of the present invention can also be a structure joined to a sheet-like object at the tip of the needle-like protrusion.
- heat insulation can be maintained, dimensional stability is improved, and the needle-like protrusions are prevented from moving to the left and right, so the compressive strength is also increased.
- the types of i-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 fabrics, knitted fabrics, non-woven fabrics, nets, and papers. If heat resistance is required, metal such as an anoremi foil or ceramic plate can be used. Perforated film for resin seeds, breathable
- breathable foam sheets can be used. By joining these air-permeable sheets, it is possible to make a “heat-insulating board J that breathes, and to form a three-dimensional structure having anti-condensation properties by passing almost no air but passing water vapor. As a result, it does not tingle like glass wool, and the product can be reused as a resin, so there is little environmental impact.
- a structure having a function of a filter or a drain material By filling the protrusions of the three-dimensional structure of the present invention and the gaps between the protrusions with a fibrous material, a structure having a function of a filter or a drain material can be obtained. Since the solid structure of the present invention has a large gap and a high compressive strength, a filter or a drain material having a low rate of impairing air permeability and water permeability can be obtained by filling the space with a small packing density of fibrous materials. It can be. In this case, it is particularly preferable that the tip end of the needle-like projection is joined to the sheet-like object.
- the characteristics of the structure in which a sheet-like object is joined to the tip of the protrusion of the single-sided protrusion structure of the present invention are as follows.
- the number of convex portions on one side can be increased compared to the case of the double-sided projection structure, so there are many junctions on one side, and the double-sided projection
- the compressive strength and peel strength are improved compared to the structure, and the surface of the joining sheet becomes smoother.
- a structure having a flat surface on both sides can be easily obtained by simply joining a sheet-like object on one side (projection side). In the structure, it is simpler than the necessity to join the sheet-like material on both sides.
- two layers of the needle-like protrusion structure of the present invention face each other with the protrusion sides facing each other, with a sheet-like object interposed therebetween. It can be set as the joined structure.
- Each structure has: a large number of regular holes on both surfaces, and can be a unique structural material that is used, for example, as a sound absorbing material.
- a molten resin As an example of the joining method of the three-dimensional structure and the sheet-like material in the present invention, a molten resin
- the structure of the present invention is a single-sided projection, and therefore there are various advantages in joining these sheets.
- the joining of sheets is very simple, and specific examples of joining means are illustrated in Figs. : Further, joining them is easy and can be done firmly without using adhesives such as adhesives.
- the joined sheets have the feature that there is little difference in height at the joints. In order to improve the adhesion of the joint and prevent water leakage, it is desirable to use a sealing agent or the like in the joint.
- the present invention has made it possible to stably produce a three-dimensional structure having needle-like protrusions formed by deforming two small portions of the resin sheet on one side of a resin sheet.
- a three-dimensional structure consisting of needle-shaped projections that are thinner and higher than conventional ones.
- the structure according to the present invention can also reduce the thickness of the tip of the needle-like protrusion. Therefore, the structure according to the present invention has the following advantages: • Since the amount of resin used is small, it is resource-saving, precious resources are not wasted, and the environmental load is low when discarded. It also has performance features such as light weight and high thermal insulation. These bulky and light performances have traditionally been handled by foam. Although the foam has problems such as weak surface wear, poor air permeability and poor water permeability, the present invention has a three-dimensional structure that is completely different from the foam. We were able to solve these problems.
- the term “flexible” is relative, and even if a hard polychlorinated resin such as a hard polychlorinated bur resin or a polycarbonate resin is used, the unique structure of the present invention can be used as compared with a conventional three-dimensional structure. It means that it can be relatively flexible. Furthermore, the present invention can be made into a product having a large compressive strength with a large molecular orientation of the molded product because of a large deformation rate during molding and good cooling efficiency.
- the means for continuously producing the three-dimensional structure according to the present invention has a long needle length, so that the resin sheet is continuously sandwiched between the needle-shaped molds provided with a pair of conveyors as in the prior art. It cannot be manufactured. Therefore, in the present invention, a three-dimensional structure having thin and long protrusions on one side is continuously formed by means of moving the needle-shaped mold on the conveyor perpendicular to the resin sheet while applying a perforated pressing plate behind the resin sheet.
- the effective use of a compressed air chamber and a release plate as a means to efficiently produce the product has enabled stable and continuous production with good productivity.
- the compressed air chamber of the present invention can be installed on both the perforated pressing plate side and the substrate side.
- the mold can be easily separated from the needle-shaped mold fixed to the mold.
- this mold separation is particularly effective.
- the air blown out from the compressed air chamber was effective for cooling the molded body, the needle-shaped mold, and the perforated pressing plate, enabling stable and highly productive production.
- this compressed air chamber is a continuous production device, it does not need to circulate together with the conveyor, and it only needs to be fixed at a certain position on the conveyor, so it can function with a simple structure.
- by forming a negative pressure in the compressed air chamber it is possible to stabilize the formation of the needle-like projections, and to make the needle-like projections uniform in thickness and thin the tip, etc. The quality of the product has improved.
- the mold release plate of the present invention is installed on the substrate side, and circulates on the Yumbea as a substrate, making it easy to separate the molded solid structure from the needle-shaped mold fixed to the substrate. . Especially when the thin and high needle-like projections are formed as in the present invention, this mold separation is particularly important.
- the heat capacity of the release plate as a metal is effective for cooling the molded body, and enables stable and highly productive manufacturing.
- a release plate can also be provided behind the perforated pressure plate, and by providing a compressed air chamber behind it, productivity can be improved even in such a continuous production device, Quality was stable.
- the three-dimensional structure of the present invention is deformed when a sheet is formed by kneading photocatalytic titanium oxide or activated carbon having a deodorizing function into the resin used, and then molding the three-dimensional structure of the present invention with the sheet. Because of its high rate, it becomes a product with a large surface area, and functions such as titanium oxide and activated carbon can be exerted greatly.
- the three-dimensional structure of the present invention can be used as it is as a packaging material for a precision machine, etc., or a cushion material using its flexibility and pressure resistance. Lightweight and water-resistant; etc.
- a plurality of the three-dimensional structures of the present invention can be stacked and used for a curing material, a filter, a drain material, etc. by utilizing the air permeability in the sheet surface direction, the water permeability and the pressure resistance in the direction perpendicular to the surface.
- tip of the acicular protrusion of the three-dimensional structure of this invention can be used for a partition, a heat insulating material, the soft ground reinforcement material of a civil engineering, a curing material, etc.
- the space between the needle-like projections of the present invention is filled with a fibrous material, and if necessary, the tip of the needle-like projection is joined with a sheet-like material, such as a heat insulating board, filter, sewage treatment, livestock Used for shed floors and manure treatment.
- a sheet-like material such as a heat insulating board, filter, sewage treatment, livestock Used for shed floors and manure treatment.
- the three-dimensional structure of the present invention is characterized by having a high protrusion on one surface of a thermoplastic resin sheet. Compared with the conventional method for manufacturing a double-sided protrusion structure, the apparatus is simple and the manufacturing method is also simple. In addition, since the single-sided protrusion structure of the present invention as a three-dimensional structure has a long protrusion, the single-sided protrusion can be sufficiently high in bulk. Further, when the structures of the present invention are joined together as a sheet, there is also a feature that a step can be reduced and joining can be performed easily.
- a unique structure having cavities inside a large number of protrusions can be obtained, and various applications using the cavities can be developed.
- it could be used as an underlay for the packaging of export machinery parts, allowing the anti-fouling oil to collect in the cavity of the protruding part, preventing the anti-fouling agent from flowing out.
- the cavity of the protrusion is sealed with a sheet-like material having an oil absorption function such as a nonwoven fabric, the ability to retain the wrinkles can be further improved.
- the packaged contents are seafood or vegetables, the liquid leached from them is absorbed by the non-woven fabric, held inside the needle-like projections of this three-dimensional structure, and flows out of the package. Can be prevented.
- the bottom of the needle-like projections is sealed with a porous sheet such as a non-woven fabric or paper, and a gas absorbent such as activated carbon, silica gel, or oxygen absorbent is sealed in the internal cavity of the needle-like projections. 3 ⁇ 4 of the package contents;
- the three-dimensional structure can be made to have an inertial cushioning property, and in that case, the thickness of the resin sheet of the three-dimensional structure can be reduced, which is advantageous from the economical aspect. There is sex.
- a structure having a flat surface on both sides can be easily manufactured by joining only one side, and compared to a double-sided projection structure.
- the number of protrusions on one side is large, it is possible to increase the peel strength and compressive strength from the sheet-like material, and there is also an effect that the surface of the sheet becomes smoother when the sheet-like material is joined.
- the tip of the protrusions of the two-layer protrusion structure of the present invention face each other and are joined to a sheet-like object, so that a structure material having a large number of regular holes on both sides can be obtained. I was able to use it.
- the present invention can also provide a new structure in which a plurality of sheets comprising the structure of the present invention are simply but firmly connected.
- FIG. 1 is a perspective view of an example of the three-dimensional structure of the present invention.
- FIG. 2 is a side view of a part of the needle-like protrusion shown in FIG.
- FIG. 3 is another example of a side view in which a part of the needle-like protrusion of FIG. 1 is taken out.
- FIG. 4 is a side view of 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 a side view showing an example in which an object is confined in the cavity of the projection of the three-dimensional structure of the present invention.
- FIG. 6 is a cross-sectional view showing an example in which the three-dimensional structure of the present invention having two layers is joined to the sheet-like object at the tips of the needle-like protrusions.
- FIG. 7 is a cross-sectional view showing an example in which two three-dimensional structures of the present invention installed in parallel are connected by the three-dimensional structure of the present invention.
- FIG. 8 is a sectional view showing another example in which two three-dimensional structures of the present invention installed in parallel are connected by stacking the three-dimensional structures of the present invention.
- FIG. 9 is an example of an apparatus for producing a three-dimensional structure according to the present invention, and is a side view showing a part of an apparatus having a release plate.
- FIGS. 10A and 10B show another example of the apparatus for producing a three-dimensional structure according to the present invention.
- FIG. 10A is a conceptual diagram in the case of having a compressed air chamber, and FIG.
- FIG. 11 is a conceptual diagram showing another example of the apparatus for producing the three-dimensional structure of the present invention, in which a release plate and a pressure chamber are provided behind the perforated pressing plate, and a sectional view from the side. Indicated.
- FIG. 12 is a side view of the continuous production apparatus for a three-dimensional structure according to the present invention.
- FIG. 13 is a perspective view of the guide groove side wall of FIG.
- FIG. 14 is a perspective view of a molded member of the apparatus of FIG.
- FIG. 15 is a conceptual diagram showing the molding process of FIG.
- FIG. 16 is a sectional view of the apparatus of FIG.
- FIG. 17 is a side view of another continuous production apparatus of the present invention.
- FIG. 18 is a cross-sectional view of the apparatus of FIG.
- FIG. 19 is a side view of a process in which an example of means for making a hole in the tip of the needle-like projection of the present invention is a conceptual diagram.
- FIG. 20 shows a side view of the process as a conceptual diagram showing an example of means for joining the sheet-like material to the tip of the three-dimensional structure of the present invention.
- FIG. 1 is a perspective view of a part of a three-dimensional structure 1 manufactured according to the present invention.
- the acicular protrusions 3 a 3 b 3 c are arranged at a constant pitch p in the horizontal direction.
- the needle-like protrusion 3 d 3 e 3 f on the rear side is the pZ2 pitch (pitch q) of the needle-like protrusion 3 a 3 b 3 c. It is arranged with.
- the needle-like protrusions 3 g 3 h 3 i on the rear side are arranged in the lateral direction with a constant pitch p behind the row 3 a by a constant pitch p. That is, the needle-like protrusion 3 d. Is at the center of the square formed by the needle-like protrusion 3 a 3 b 3 g 3 h, and the needle-like protrusion 3 e is the square formed by the needle-like protrusion 3 b 3 c 3 h 3 i In the center of.
- the 3d 3 e 3 f protrusions protruded on the back side of the resin sheet 2, but the single-side protrusions of the present invention all protrude on one side, For one side, the number of needle-like protrusions can be increased.
- the arrangement of these needle-like protrusions is a preferable arrangement for providing as many protrusions as possible on the sheet, but is not limited to such an arrangement, and a large number of one side of the resin sheet 2 is provided. What is necessary is just to protrude.
- FIG. 2 is a side view in which only the needle-like protrusions 3 a 3 b 3 c of FIG. 1 are taken out; Taking the needle-like protrusion 3 a as an example, the height H of the needle-like protrusion and the width W of the protrusion at the height 1 Z 2 are shown.
- the present invention is characterized in that the needle-like protrusions 3 having a large H with respect to the width W can be manufactured stably and continuously with high productivity.
- the radius of curvature of the tip 5 of the protrusion is shown as an example of the needle-like protrusion 3b.
- the circle 6 inscribed in the surface of the tip 5 is the curvature circle, and its radius R is the curvature radius.
- the radius of curvature R depends on the value of W, and the larger the W, the larger the R, and it is preferable that R ⁇ W 2.
- One feature of the present invention is that the thickness of the tip can be reduced by means such as sucking air from a pressure chamber provided behind the perforated pressure plate.
- the needle-like protrusion 3c as an example, an example of a structure in which the protrusion tip 7 is sliced and a hole is opened at the protrusion tip is shown.
- the hole can be realized by a means for melting and removing the tip portion, and a small hole can be formed in the tip portion with a needle-like one.
- FIG. 3 shows an example in which 8 a, 8 b, and 8 c that are tip portions of the needle-like protrusions 3 a, 3 b, and 3 c constitute the flat portions 9 a, 9 b, and 9 c.
- the plane portion 9 may leave the thickness of the sheet 2, but it is preferable that the thickness is deformed to be smaller than the thickness of the sheet 2.
- FIG. 4 is a side view showing an example in which the sheet-like object 11 is joined to the tip of the needle-like protrusion of the three-dimensional structure 1 of FIG.
- the three-dimensional structure has a compression force that is dramatically improved because all the needle-like protrusions receive a compressive force evenly when compressed.
- the tensile strength and compressive strength of the sheet-like material 11 and resistance to bending are increased, so that it becomes extremely strong.
- this sheet-like material 11 can be made to have air permeability and water permeability, and to function as a filter or drain material. did it. this By filling the space between the protrusions of these three-dimensional structures with the state 12, the function as a filter, drain material, and reaction tank could be further improved.
- FIG. 5 is a side view showing an example in which the object 13 is filled in the cavity of the concave portion of the needle-like protrusion of the three-dimensional structure 1 of FIG. It is preferable that a sheet-like object 14 is bonded to the bottom side of the needle-like protrusion so that the object 13 is enclosed.
- the object 13 is a gas
- the sheet-like object 14 is indispensable.
- the three-dimensional structure of the present invention is characterized in that such an object 13 can be enclosed inside the needle-like protrusions, and it is difficult to make such a filling substance enclosure type with a double-sided protrusion structure.
- the structure of the present invention can be used as a heat exchange material by filling an object with a liquid such as a heat storage material or a coolant. Also, even if the object is solid, it can be filled if it is fluid by heating or the like. It should be noted that after the object 13 is filled into the three-dimensional structure, the sheet-like material 14 can be joined by using: extrusion lamination, but the sheet-like material 14 has a thermal adhesive property. In this case, it can be joined simply by heating, or it can be bonded by interposing an adhesive at the joint. It is also possible to make a structure that can release ⁇ .
- FIG. 6 is a cross-sectional view showing an example in which two-layered three-dimensional structures 1 a and 1 b of the present invention have needle-like protrusions joined to the sheet-like object 11 at their tips.
- the figure shows the case where the position of the top of the upper layer does not match the position of the bottom of the lower layer, but it can also be matched.
- the tip of the needle-like protrusion was joined to the sheet-like object, so that a three-dimensional structure having a larger thickness could be obtained. Further, it can be a structure having many cavities c on the surface, and is used for a soundproof wall or the like.
- Filling with foamed materials such as SSiHI and urethane foam as shown in Fig. 4 can improve the performance of sound barriers and sound absorbing materials.
- Fig. 7 shows two parallel structures lc, I d (corresponding to sheet A and sheet B) of the present invention, in which the tip of the protrusion is installed in parallel and the tip of the protrusion is down.
- a cross section showing an example of a three-dimensional structure in which three-dimensional structures lc and 1d are connected by stacking needle-like protrusions so as to intersect each other with the standing structure le (corresponding to sheet C) of the invention It is a figure. Note that the upward and downward directions are expressed in a relatively easy-to-understand manner and include cases where they are opposite to each other.
- the three-dimensional structure le used for connection may have only the connection part of lc and Id, but it is stacked in a wide area, and the horizontal direction is connected one after another in the vertical direction to connect a wide area.
- the bottom surface 15 of the three-dimensional structure 1 e or the like may be the resin sheet 2 for molding the standing structure, and another sheet-like material 14 is joined to the bottom surface. It may be.
- the bottom surface 15 is a resin sheet, the surface has a perforated structure with many cavities, and when another sheet 14 is joined, the surface can be made flat. In this case, the sealing agent layer 16 is interposed on the joint surface, and water leakage or the like can be prevented.
- the connection can be similarly made with the needle-like protrusions 1e of the present invention.
- FIG. 8 shows the three-dimensional structure 1 of the present invention in the cavity of the needle-like projections of two three-dimensional structures 1 f and 1 g (corresponding to the sheet and sheet B) of the present invention installed in parallel.
- FIG. 6 is a cross-sectional view showing an example of a three-dimensional structure that is connected by stacking so that needle-shaped protrusions h (corresponding to sheet stitches) enter. By doing this, the two solid structures 1 f and lg that are not installed in parallel can be used by using the narrow solid structure 1 h without changing the height at the joint. Can be joined firmly.
- the figure shows the case where the three-dimensional structure 1 h is connected to the bottom of the three-dimensional structure 1 f, 1 g; Structure 1 h can also be placed.
- the needle-like protrusions of the joining solid structure lh have the same arrangement as the three-dimensional structures If and lg, but the height H and width W are small. It is desirable to keep it.
- the three-dimensional structures 1 f and lg to be joined can be made into a structure having a flat surface by joining the sheet-like objects 1 1 a and 11 b. In this case as well, a sealing agent is interposed between these joint surfaces, so that water leakage can be prevented.
- FIG. 9 is an example of a method for producing the three-dimensional structure 1 of the present invention, and a part of the apparatus is shown in a side view.
- the substrate 21 has needle-like molds 2 3 a, 2 3 b, and 2 3 c having screw portions 25, which are fixed to the substrate with nuts 26. Needle-shaped molds 2 3 a, 2 3 b, and 2 3 c show only a part of them.
- the needle-shaped molds are fixed in the horizontal direction and the depth direction in the drawing. It is arranged with a stick.
- a hole pressing plate 2 4 is provided on the substrate 21, and the hole pressing plate 2 4 has holes 27 corresponding to the positions of the protrusions of the needle mold 2 3,
- the protrusions of the needle-shaped mold 23 are fitted into the holes 27 by the vertical movement of either the substrate 21 or the perforated pressing plate 24 or the vertical movement of the both.
- a molten resin sheet 2 2 that is higher than the deflection temperature under load is guided between the substrate 21 and the perforated retainer plate 24, and the vertical motion of the substrate 21 and / or the perforated retainer plate 2 4 or both.
- the needle-like projections 3a and 3b are formed by the insertion.
- the perforated presser plate 24 is shown in the lowest position.
- the sheet 2 2 is the lowest in the substrate 2 1 force when a projection of a certain area is formed by a single vertical movement stroke of the substrate 2 1 (or the perforated plate holding plate 2 4 or both). When it reaches the position, it moves up and down, and the next substrate 21 moves up and down to form a needle-like projection next to it in the next fixed area. In this way, by repeating the formation of a certain area with the vertical movement stroke of the substrate 21 etc., a three-dimensional structure having a large number of needle-like protrusions is formed rapidly.
- up / down motion using an air cylinder or hydraulic cylinder up / down motion using a cam
- up / down motion using a magnetic attractive force or repulsive force can be used.
- cross-section and size of the needle-like projections 3 of the present invention are not necessarily constant, and may be mixed.
- FIG. 9 shows an example in which the release plate A 28 is present between the substrate 21 and the molten resin sheet 22.
- the perforated pressing plate 24 moves upward, and the needle-shaped mold 23 integrated with the substrate moves downward.
- the release plate A 28 moves upward, and the molded product on which the needle-like protrusions 3 are formed is separated from the needle-like mold 23.
- the molten resin sheet 2 2 is cooled by the heat capacity of the release plate A 2 8 to help stable molding.
- Molding with the needle mold 23 according to the present invention has a high deformation rate, a large surface area, a large cooling efficiency, and further a productivity due to a mold releasing effect and a cooling effect due to the upward movement of the release plate A 28. Is up.
- FIG. 10 shows an example in which a compressed air chamber 32 is provided behind the perforated presser plate 31 in the same molding means as FIG.
- FIG. 10A shows a plan view of the apparatus
- FIG. 10B shows a cross-sectional view of the apparatus from the side.
- the perforated presser plate 3 1 has holes 2 7 a, 2 7 b, 2 7 c, ... corresponding to the needle mold 2 3, and the hole 2 7 is a double ring. Shown indicates that the hole is chamfered.
- the chamfer is preferably chamfered not only on the side where the needle mold enters, but also on the opposite side. This is because the tip of the needle-like protrusion with the face on the opposite side can be prevented from being pulled.
- a large number of small holes 3 4 are formed in the perforated pressing plate 3 1.
- the side wall surrounding the compressed air chamber 3 2 is provided with a seal portion 33 made of fluorine resin, felt or the like. Air leakage is reduced. Compressed air is guided to the compressed air chamber 3 2 through the conduit 3 5 Accordingly, the formed three-dimensional structure 36 is separated from the force of the perforated retainer plate 31 by the air pressure of the compressed air from the hole 27 and the small hole 34 of the perforated retainer plate 31.
- the air supplied to the pressure chamber also has the effect of cooling the molded three-dimensional structure 36. In this sense, the degree of sealing of the seal part 33 is not critical.
- a pressurized air chamber similar to the compressed air chamber 3 2 can be provided behind the substrate 21, and in this case, the substrate 21 has a small hole similar to the small hole 3 4.
- FIG. 11 is a sectional view from the side showing an example in which a release plate B 37 is provided behind the perforated pressing plate 24 in the same molding means as in FIG. After the needle-shaped protrusions 3a, 3b, 3c are molded, the needle-shaped molds 2 3a, 2 3b,
- Substrate to which c is fixed 2 1 descends vertically, and release plate A 2 8 separates needle-like mold 2 3 from the needle-like projection.
- the perforated retainer plate 2 4 is also raised, and the release plate B 3 7 is lowered in the process, and the heads of the needle-like protrusions 3 a, 3 b, 3 c are pushed down, and the perforated retainer plate 2 Separate from 4.
- a compressed air chamber 3 8 can be provided behind the release plate B 3 7, and air can be blown out from the small hole 39 formed in the release plate B to cool the needle-like protrusion 3. .
- the release plate A 2 8 is also lowered.
- a release plate B 37 and a pressurized air chamber 38 are provided separately,
- FIG. 12 to FIG. 16 show an example of continuously producing the three-dimensional structure of the present invention.
- Figure 12 shows the entire device in side view.
- conveyor A that continuously circulates rollers 4 1 and 4 2
- the flyer 4 5 b is paired with the flyer 4 5 a.
- the rollers may be sprockets and convey the conveyor with gears.
- a large number of vertical pins 65 are planted at regular intervals in the flyer 45 (only a part is shown in the figure because it becomes complicated).
- a large number of substrates 61 having needle-like projections (not shown in the figure) on the surface shown in FIG. 9 are drilled and passed through vertical pins 65. It is fixed.
- the kitabira 4 5 b which becomes the conveyor B that is paired with the conveyor A, has a substrate 6 1 that has needle-like protrusions, unlike the kitabira 4 5 a.
- a perforated retainer plate 68 is provided, and the perforated retainer plate 68 is a hole corresponding to each one needle-like protrusion of the needle-shaped mold 62. Is opened. Then, it is shown that the resin sheet 72 as a raw material is molded at the portion of the guide groove side wall 51 to become a three-dimensional structure 73.
- the mold-shaped punch hole presser plate that has exited the guide groove side wall 51 after the molding process has been completed is coated with a release agent and cooled with water spray or the like. can do.
- FIGS. 13 and 14 show perspective views of parts of the manufacturing apparatus of the present invention.
- FIG. 13 shows a state in which a guide groove 52 and a release plate guide groove 53 are formed on the plate on the guide groove side wall 51.
- a guide groove 54 for a perforated pressing plate is provided on the lower side.
- the guide groove 52 for the substrate and the guide groove 53 for the release plate shown in Fig. 13 move away after approaching, it is the molded three-dimensional structure that gives a different path from the approaching approach. This is to facilitate the release of the object 7 3 from the needle-shaped mold of the substrate.
- the 14 shows a flyer 45, a vertical pin 65 standing on it, a substrate 6 1 on which a large number of needle-like molds 62 are planted, and a needle-type penetration corresponding to the needle-like mold 62
- a release plate 6 3 having a hole 64, a substrate support pin 6 6 provided on the side surface of the substrate 61, and a release plate support pin 67 provided on the side surface of the release plate 63 are shown.
- the substrate support pins 6 6 and the release plate support pins 6 7 are the guide groove side walls in FIG. By being guided by the respective grooves 1, the substrate 61 and the perforated retainer plate 6 8 provided on the upper and lower cutter blades 4 5 a and 4 5 b move vertically to the resin sheet 7 2.
- the needle-shaped mold 6 2 provided on the 6 1 penetrates the resin sheet 72 and the three-dimensional structure 73 is formed.
- FIG. 15 shows a portion of the guide groove side wall 51 in the overall view of the apparatus shown in FIG. 12.
- the needle-shaped mold 62 and the release plate planted on the substrate 61 with respect to the resin sheet 72 6 3 and perforated presser plate 6 8 showed how they work.
- the needle-shaped mold 6 2, the release plate 6 3, and the perforated pressing plate 6 8 that are still attached to the substrate 61 at the entrance portion of the guide groove side wall 51 are also separated from the resin sheet 7 2.
- process B the upper needle-shaped mold 62 and the lower perforated presser plate 68 move vertically to the resin sheet 72, penetrate the resin sheet 72, and are formed into a three-dimensional structure 7 3 It becomes.
- Step C first, the needle-shaped mold 6 2 and the perforated pressing plate 6 8 are separated from the molded three-dimensional structure 7 3, and the release plate 6 3 is “on the molded three-dimensional structure 7 3 side”. Indicates the state still remaining.
- the release plate 63 is also separated from the three-dimensional structure 73.
- the vertical shift of the substrate 61, the release plate 63, and the perforated retainer plate 6 8 with respect to the resin sheet 81 is based on the guide groove 52 for the substrate provided on the guide groove side wall 51 and the release plate. This is performed along the-locus of the guide groove 5 3 and the guide groove 5 4 for the perforated pressing plate. Therefore, the guide grooves 51, 52, etc. become vertical transition guides in this way, and the substrate 61, the release plate 63, and the perforated presser plate 68 are moved straight.
- a compressed air chamber ⁇ 7 4 can also be provided on the back of the substrate 61 in the process ⁇ , and the three-dimensional structure 7 3 is cooled by the air sent from the compressed air chamber ⁇ 7 4 from the back of the substrate 61. It plays the role of releasing.
- the perforated retainer plate By sucking air from another compressed air chamber C provided behind 6 8, it is possible to assist the forming by the needle-shaped mold 62 and stabilize the forming.
- Pressurized chamber A 7 1, Pressurized chamber B 7 4 and Pressurized chamber C are fixed and will not move with the advance of the flyer 6 4 b.
- the installation of the compressed air chamber 71 and the like has been described with reference to FIG. 15, and the structure and operation of the compressed air chamber A 71 and the like have already been described with reference to FIG.
- the release plate B and the pressure chamber shown in FIG. 11 can be provided behind the perforated pressing plate 68.
- Fig. 16 is a cross-sectional view as seen from the front in step B of the overall view of the device of Fig. 15.
- the arrangement of support pins 6 7 etc. is shown.
- a hole presser plate 6 8 is provided in the lower pillar 45 5 b and is guided by a hole presser plate support pin 69.
- a compressed air chamber can be provided from behind the perforated pressing plate 68. Kitabira 4 5 b exists only on both sides, and does not collide with the pressure chamber A or the pressure chamber C that is fixed.
- the flyer 45a is also configured to exist only on both side surfaces.
- FIGS. 17 and 18 show other means for continuously forming the sheet-like material of the three-dimensional structure 1 of the present invention.
- FIG. 17 is a side view
- FIG. 18 is a cross-sectional view taken along the plane A-1A and BB of FIG.
- the conveyor 8 3 circulates between the rollers 8 1 and 8 2.
- a large number of vertical pins 8 4a and 8 4b are planted at regular intervals.
- substrates 85a and 85b having a large number of needle-like protrusions (not shown) on the surface shown in FIG. 9 are fixed with holes formed at both ends.
- the conveyor 83 is magnetized by means such as embedding magnetic rubber, magnetic plastic, or a magnet.
- the magnetism of the conveyor 83 causes the substrate 85 to be placed on the conveyor 83. Fixed.
- the base plate 8 5 When the conveyor 8 3 and the conveyor 8 6 that circulates at a constant speed in a pair with the lower conveyor 8 3 face each other and approach each other, the base plate 8 5 However, it moves away from the conveyor 8 3 side and gradually moves vertically on the vertical pins 8 4 toward the resin sheet 2 of the raw material.
- the conveyor 8 6 paired with the conveyor 8 3 has the rollers 8 7: 8 8 between the conveyor 8 3 and circulating at a constant speed, as well as a number of vertical pins 9 1 a ,: 9 lb, numerous perforated retainer plate 9 2 a, 9 ⁇ ⁇ 3 ⁇ having 2 b that is fixed thereto.
- Bear 8 3 The vertical pin 9 1 of the conveyor 86 that circulates in a paired relationship with the hole 9 1 is similarly pushed up by the base 9 3 and moves vertically to the resin sheet 2; ; This substrate .8 5 and even the perforated plate 9 2 are moved vertically, and the needle-like protrusions (not shown in the figure) provided on the substrate 8 5 through the resin sheet 2 running between them. ) Penetrates the resin sheet 2 in the vertical direction to form a three-dimensional structure 94 having needle-like protrusions on one side of the resin sheet 2. Further, in the drawing, the heating device or the heat retaining device for the resin sheet 2 to be inserted is omitted, and the cooling device for the resin sheet after the needle-like protrusions of the substrate have penetrated is also omitted.
- FIG. 18A is a cross-sectional view taken along line AA in FIG. 17, and FIG. B is a cross-sectional view taken along line BB. Only the upper device in FIG. 17 is shown.
- the gantry 90 is installed outside the conveyor 8: 3. When returning to the board 8 5 side and the conveyor 8 3 side, it is the opposite side of the rack 90 shown in Fig. 17
- the mount and guide rail are preferably composed of small roller bearings in order to reduce friction, and a material with a small friction coefficient or a lubricant can be used.
- FIG. 19 shows a means for making a hole in the tip of the needle-like protrusion of the three-dimensional structure of the present invention.
- the three-dimensional structure 1 0 1 has needle-like protrusions 1 0 2; a: 1 0 2 b,.
- a heating roll 1 0 3 which touches the tip of the needle-like protrusion 1 0 2, melts and removes the tip of the needle-like protrusion 1 0 2 ′, and cools :
- a three-dimensional structure 10 6 having holes 10 5 a, 10 5 b,.
- Heating rolls, hot air flow torches, etc. can be used instead of heating rolls 10 3 1 Any of these is 30 to 50 or higher than the melting point of resin sheet (secondary transition point in the case of amorphous polymer) It is preferable that the temperature is 10 or higher.
- FIG. 20 shows means for joining the sheet-like material to the three-dimensional structure 10 1 of the present invention.
- Three-dimensional structure with needle-like protrusions 1 0 2 a, 1 0 2 b, ... on one side of the resin sheet 1 0 1 has a heating roll 1 1 1 in the direction of travel, and the sheet-like object 1 1 2 is guided, heated by the heating roll 1 1 1 and softened, touches the tip of the needle-like protrusion 1 0 2 and is joined to the tip of the needle-like protrusion 1 0 2, and the sheet-like object 1 1 2 is joined 3D structure 1 1 3 Unlike the heating roll 10 3 in FIG.
- the heating roll 1 1 1 does not need to be heated to an extremely high temperature, but it is necessary to give the sheet-like material 1 1 2 sufficient heat for joining.
- the temperature should have a function of cooling the molten resin.
- Sheet 1 1 2 is fine Adhesive webs 114 between the three-dimensional structure 101 and the seed-like material 112 when the properties change due to heating, such as a porous membrane or non-woven fabric, or when bonding is difficult by heating alone, such as woven fabrics and nets. And can be bonded by the adhesive web 114.
- the adhesive web 114 is formed in a non-woven cloth shape so as not to impair the air permeability. It is preferably a net-like material, and when the air permeability of the adhesive web 114 is low, the adhesive web 114 is not partially placed over the entire surface of the sheet-like material 112 but is partially disposed in a band shape and joined. It is preferable. Also, without using the adhesive web 114, it is also possible to apply the adhesive to the joint surface of the sheet 102 or the tip of the needle-like protrusion 10 of the three-dimensional structure 10 li. A three-dimensional structure 113 can be produced.
- FIG. 20 shows an example in which the sheet-like object 112 is joined to the tip of the needle-like protrusion 1: 0: 2 of the three-dimensional structure 101. However, in the same manner as that case, the bottom face side of the needle-like protrusion 102 is shown. It is also possible to join the sheet-like material 112.
- Example 1
- Polypropylene (Sanomer Co., Ltd., PB 370A, MF R 1.3, density 0.9 gZcnT, deflection temperature under load 8 1 C) was used as the raw material resin.
- This resin is extruded from a T die at 255 ° C and led to the three-dimensional structure molding process shown in Fig. 9 so that it becomes a sheet of 1 ⁇ in a molten state.
- a molding die was prepared in which the substrate 21 and the needle mold 23 in FIG. Needle diameter of needle-shaped mold 23 was 2. Omm, pitch was 8.4 mm, and height was 25 mm.
- the needle-like mold 2 3 was inserted into the hole 2 7 of the perforated presser plate 2 4 so as to penetrate the resin sheet in a state where the gate 22 was sandwiched.
- the temperature of the molten resin sheet at this time was 2 3 3.
- the needle-shaped mold 2 3 inserted into the molten sheet 2 2 is released from the release plate A 2 8 (material, plate thickness and hole diameter are the same as the perforated pressing plate 24).
- the mold was released while being cooled by being pushed down while being supported, and was taken out from the needle-shaped mold 23 and the perforated presser plate 24 as a molded body, and the three-dimensional structure shown in FIG. 1 was obtained.
- the height H of this three-dimensional structure was 8 mm
- the width W in 1 Z 2 H was 2, 7 mm
- the pitch to the protrusion adjacent to the needle-like protrusion was 8.4 mm.
- the three-dimensional structure having thin and high needle-like protrusions manufactured according to the present invention is excellent in pressure resistance despite having flexibility, and has water permeability and heat insulation properties. Therefore, the buffer sheet, cushion sheet, partition, floor Used for materials. In addition, an object is enclosed in the cavity inside the if-shaped protrusion, and another sheet-like material is joined to the bottom surface of the needle-shaped protrusion, so that it is used for a packaging material having a new function. ;
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- Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
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JP2004-256219 | 2004-09-02 | ||
JP2004256219A JP4663280B2 (ja) | 2004-09-02 | 2004-09-02 | 片面に針状突起を有する立体構造物の製造方法 |
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WO2006025596A1 true WO2006025596A1 (ja) | 2006-03-09 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108472476A (zh) * | 2016-01-27 | 2018-08-31 | 花王株式会社 | 微细中空突起器具的制造方法 |
JP2020124629A (ja) * | 2020-05-27 | 2020-08-20 | 花王株式会社 | 微細中空突起具の製造方法 |
Families Citing this family (4)
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JP5184294B2 (ja) * | 2008-10-14 | 2013-04-17 | 川上産業株式会社 | 複層の気体密閉室を有するプラスチック気泡シート及びその製造方法、製造装置 |
JP2011225241A (ja) * | 2010-04-19 | 2011-11-10 | Kawakami Sangyo Co Ltd | 積層又は連結可能な中空突起を有するシート成形体 |
US10632653B2 (en) | 2014-10-17 | 2020-04-28 | Kao Corporation | Fine hollow protrusion manufacturing method |
JP6064012B1 (ja) * | 2014-10-17 | 2017-01-18 | 花王株式会社 | 微細中空突起物の製造方法 |
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US20190030308A1 (en) * | 2016-01-27 | 2019-01-31 | Kao Corporation | Method for producing fine, hollow projection tool |
US11123530B2 (en) * | 2016-01-27 | 2021-09-21 | Kao Corporation | Method for producing fine, hollow projection tool |
JP2020124629A (ja) * | 2020-05-27 | 2020-08-20 | 花王株式会社 | 微細中空突起具の製造方法 |
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JP2006069076A (ja) | 2006-03-16 |
JP4663280B2 (ja) | 2011-04-06 |
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