WO2019107319A1 - Panneau en résine et sa méthode de fabrication - Google Patents

Panneau en résine et sa méthode de fabrication Download PDF

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Publication number
WO2019107319A1
WO2019107319A1 PCT/JP2018/043452 JP2018043452W WO2019107319A1 WO 2019107319 A1 WO2019107319 A1 WO 2019107319A1 JP 2018043452 W JP2018043452 W JP 2018043452W WO 2019107319 A1 WO2019107319 A1 WO 2019107319A1
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WO
WIPO (PCT)
Prior art keywords
resin
reinforcing member
core material
core
air flow
Prior art date
Application number
PCT/JP2018/043452
Other languages
English (en)
Japanese (ja)
Inventor
洋介 林
丹治　忠敏
素晴 藤井
吉田　攻一郎
Original Assignee
キョーラク株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2017229341A external-priority patent/JP6959522B2/ja
Priority claimed from JP2018123964A external-priority patent/JP7078848B2/ja
Application filed by キョーラク株式会社 filed Critical キョーラク株式会社
Publication of WO2019107319A1 publication Critical patent/WO2019107319A1/fr

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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
    • B29C51/12—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 of articles having inserts or reinforcements
    • 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
    • B29C51/38—Opening, closing or clamping means

Definitions

  • the present invention relates to a resinous panel which can be used in architectural applications, in-vehicle applications, furniture applications and the like, and a method of manufacturing the same.
  • Patent Document 1 discloses a method of manufacturing a resin panel by clamping a mold after welding a foam structure in which a core material and a reinforcing material are integrated to a resin sheet.
  • This invention is made in view of such a situation, and provides the resin-made panels which can suppress generation
  • the present invention also provides a method of manufacturing a resinous panel capable of suppressing the displacement of the insert position of the core member and the reinforcing member.
  • the resin panel is provided with a resin wall, a core member, and a reinforcing member, the core member and the reinforcing member are surrounded by the resin wall, and the reinforcing member is air. It has a flow path,
  • the reinforcement member has an adjacent part which adjoins the core material, and a projected part which protrudes from the side of the core material, and the air flow path extends from the adjacent part to the projection.
  • the resin flow path is provided, and the air flow path communicates with the outside of the air flow path in both the adjacent portion and the projecting portion.
  • the air between the resin sheet and the core material can be extracted through the first opening, the air flow path, and the second opening, the generation of residual air can be suppressed.
  • the reinforcing member is a resin panel provided with a first opening communicating with the air flow passage at the adjacent portion.
  • the first opening is provided so as not to be in contact with the resin wall.
  • the first opening is a resin panel provided on the side surface of the reinforcing member.
  • the first opening is a resin panel provided at a position facing the core material.
  • a gap between the reinforcing member and the core member is provided at a portion where the first opening is provided.
  • the first opening is a resin panel provided at a plurality of circumferential positions of the reinforcing member.
  • a groove communicating with the air flow channel is provided on the surface of the core material.
  • the grooves are provided in a grid shape.
  • the reinforcing member is a resin panel provided with a second opening communicating with the air flow passage in the protrusion.
  • the second opening is a resin panel provided on an end face of the reinforcing member.
  • a plurality of the reinforcing members are provided at intervals, the plurality of the reinforcing members are connected to each other by a connecting member, and the connecting member is the core member.
  • the second side is disposed along the second side, and the second side is a resin panel facing the first side.
  • the resin wall has no hole.
  • the resin panel is provided with a resin wall, a core and a reinforcing member, and the core and the reinforcing member are surrounded by the resin wall, and the reinforcing
  • the member is inserted into the insertion hole provided in the core, the core has a front surface and a back surface facing each other, and the core is a front surface side locking portion;
  • a back surface side locking portion is provided, the front surface side locking portion locks the reinforcing member from the front surface side, and the back surface side locking portion is configured to contact the reinforcing member from the back surface side
  • a resin panel is provided, in which the front surface side locking portion and the back surface side locking portion are provided alternately along the longitudinal direction of the insertion hole.
  • a method of manufacturing a resinous panel comprising a hanging step, an inserting step, and a clamping step, wherein, in the hanging step, the space between the first and second molds.
  • the first and second resin sheets are suspended, and in the inserting step, a core material and a reinforcing member are disposed between the first and second resin sheets, and in the clamping step, the first and second molds are dies.
  • the reinforcing member has an air flow path
  • the reinforcing member has an adjacent portion adjacent to the core member, and a protrusion projecting from the side surface of the core member
  • the air flow path includes: A method is provided, which extends from the adjacent part to the projecting part, and the air flow path communicates with the outside of the air flow path in both the adjacent part and the protruding part.
  • a method of manufacturing a resin panel comprising: a drooping step, an inserting step, and a clamping step, wherein in the drooping step, the first and second dies are interposed between the first and second molds.
  • a second resin sheet is suspended, and in the inserting step, a reinforcing member is disposed between the first and second resin sheets, and in the inserting step, the reinforcing member is supported by a support device, and the mold is tightened.
  • a method is provided, wherein the first and second molds are clamped while the reinforcing member is supported by the support device.
  • the core material is supported by the reinforcing member and the first and second molds are clamped while the reinforcing member is supported by the supporting device, the core material and the reinforcing member are heavy even when the weight is large. Deviation of the insert position of the reinforcing member can be suppressed.
  • the core material and the reinforcing member are disposed between the first and second resin sheets, and the reinforcing member is a portion adjacent to the core material. And the core material is supported by the reinforcing member.
  • the reinforcing member has a protrusion protruding from the side surface of the core material.
  • at least one of the first and second molds has a slide core at a position facing the end of the reinforcing member, and the slide core is formed by the clamping step.
  • the end covering process disposed after the mold clamping process, the end covering process including moving the slide core to the mold clamping position;
  • at least one of the first and second resin sheets covers the end of the reinforcing member.
  • the reinforcing member has an air flow path
  • the support device has an elongated insertion portion, and the support device inserts the insertion portion into the air flow path.
  • a method of supporting the reinforcing member by inserting is configured to press the inner surface of the reinforcing member in a state of being inserted into the air flow channel.
  • the core material and the reinforcing member are disposed between the first and second resin sheets, and the reinforcing member is a portion adjacent to the core material.
  • the core member is supported by the reinforcing member, the reinforcing member has an opening at the adjacent portion, the opening is in communication with the air flow path, and the insertion portion is
  • the method is configured to not block the air flow path.
  • the reinforcing member is supported by the support device in a horizontally oriented state.
  • FIG. 6 is a cross-sectional view showing a shaping process and an insertion process in the same cross section as FIG. 5.
  • FIG. 6 is a perspective view of a state in which the reinforcing members 5 and 6 and the core material 3 are supported by a support device 8;
  • FIG. 8 is a perspective view of the main part of the support device 8; It is an enlarged view of protrusion part 5b, 6b vicinity of FIG. 11A and B are cross-sectional views of the protruding portions 5b and 6b in the state in which the insertion portions 8a and 8b are inserted, respectively.
  • FIG. 7 is a perspective view of a state in which the reinforcing members 5 and 6 are inserted into the core material 3; It is an enlarged view of reinforcement member 5 vicinity of FIG. FIG.
  • FIG. 14 is a perspective view of FIG. 13 with the reinforcing member 5 removed.
  • 15A-15B are respectively a plan view and a front view of FIG. 14, and
  • FIG. 15C is a cross-sectional view taken along the line BB in FIG. 15A.
  • It is a perspective view of the reinforcement members 5 and 6 and the connection member 7 in FIG. 17A to 17B are enlarged views in the vicinity of the protrusions 5b and 6b of FIG.
  • FIG. 9 is an enlarged cross-sectional view in the vicinity of the opening 5 d of FIG. 8 in a cross section passing through the center of the opening 5 d and parallel to the side surface 3 a.
  • FIG. 14 is a cross-sectional view taken along line AA in FIG. FIG.
  • FIGS. 23A to 23C are views corresponding to FIGS. 15A to 15C, of the resin panel 1 according to the second embodiment of the present invention.
  • the resin panel 1 of the first embodiment of the present invention includes a panel portion 1a and projecting portions 1b and 1c.
  • the panel portion 1a has a plate shape, and the projecting portions 1b and 1c project from the side surface of the panel portion 1a.
  • the resin panel 1 is covered with a resin wall 2. It is preferable that the resin wall 2 has no hole. Further, it is preferable that the resin wall 2 has no hole formed at the completion of molding, rather than the hole formed at the completion of molding being closed by post processing or another member. When the resin wall 2 has a hole, there is a possibility that water or dust may get inside the resin panel 1. Moreover, since what closed the hole by post-processing or another member may open a hole again by impact etc., resin wall 2 is formed by the molding method by which the hole is not formed in resin wall 2 Is preferred.
  • a core 3 and reinforcing members 5 and 6 are disposed inside the resin panel 1.
  • the reinforcing members 5 and 6 are provided so as to protrude from the side surface 3 a of the core material 3.
  • the core material 3 has a function of improving the strength of the resin panel 1 and the like, and is made of a foam or the like.
  • the reinforcing members 5 and 6 are adjacent to the core material 3.
  • the reinforcing members 5 and 6 are formed of a material (example: non-foamed resin or metal) having a rigidity higher than that of the core 3 to further improve the strength of the resin panel 1 or to form a portion protruding from the core 3
  • the reinforcing members 5 and 6 preferably have an elongated shape, and have portions whose cross-sectional shape is constant along the longitudinal direction, and the ratio of length to width is 10 or more.
  • the reinforcing members 5 and 6 are preferably in the form of a pipe having a round cross section, but may be in the shape of a square cross section, an H section or a C section.
  • the reinforcing members 5 and 6 have adjacent portions 5 a and 6 a adjacent to the core 3 and protrusions 5 b and 6 b protruding from the side surface of the core 3. As shown in FIGS. 11 and 16 to 17, the shapes of the adjacent parts 5a and 6a are the same, but the cross-sectional shapes of the protrusions 5b and 6b are different. For this reason, the cross-sectional shapes of the protrusions 1b and 1c of the resin panel 1 are also different. Although the protrusions 1b and 1c can be used to attach the resin panel 1 to another member, the protrusions 1b and 1c also have different cross sectional shapes to prevent the resin panel 1 from being attached in the reverse direction. be able to. In the present embodiment, the protrusion 5 b has an oval cross section, and the protrusion 6 b has a circular cross section.
  • the portion in which the core 3 and the adjacent portions 5a and 6a are covered with the resin wall 2 is the panel portion 1a, and the portion in which the protruding portions 5b and 6b are covered with the resin wall 2 is the protruding portions 1b and 1c.
  • the diameters of the adjacent portions 5a and 6a are larger than the diameters of the protruding portions 5b and 6b. Thereby, the reinforcing members 5 and 6 are stably held.
  • “diameter” means the diameter of the circumscribed circle.
  • the adjacent portions 5 a and 6 a are inserted into the insertion holes 3 d and 3 e provided in the core member 3.
  • the reinforcing members 5 and 6 are preferably fixed to the core 3, and by welding the core 3 to the resin wall 2, the reinforcing members 5 and 6 and the core 3 are fixed.
  • the core material 3 has a front surface 3i and a back surface 3j facing each other.
  • a front surface side locking portion 3k and a back surface side locking portion 3l are provided on the front surface 3i and the back surface 3j.
  • the front surface side locking portion 3k locks the reinforcing member 5 inserted in the insertion hole 3d from the front surface 3i side
  • the back surface side locking portion 3l is a reinforcing member inserted in the insertion hole 3d 5 is locked from the back surface 3j side.
  • the front surface side locking portion 3k and the back surface side locking portion 3l are alternately arranged along the longitudinal direction of the insertion hole 3d.
  • the reinforcing member 5 is stably held in the insertion hole 3d.
  • the front surface side locking portion 3k and the back surface side locking portion 3l do not overlap in a plan view, and the front surface side locking portion 3k and the back surface side locking portion 3l A through hole 3m is provided between the two.
  • the insertion hole 3d is sandwiched between the front surface side locking portion 3k and the back surface side locking portion 3l.
  • the inner surfaces of the front surface side locking portion 3k and the back surface side locking portion 3l are arc-shaped, and are shaped along the outer surface of the adjacent portion 5a.
  • one or both of the front surface side locking portion 3k and the back surface side locking portion 3l may be configured to press the reinforcing member 5. That is, the front surface side locking portion 3k may press the reinforcing member 5 toward the back surface 3j, and the back surface side locking portion 3l may press the reinforcing member 5 toward the front surface 3i. You may do so. In this case, the reinforcing member 5 is held more stably in the insertion hole 3d. Such a configuration can be achieved by inserting the reinforcing member 5 into the insertion hole 3d while the reinforcing member 5 is pressed by one or both of the front surface side locking portion 3k and the back surface side locking portion 3l. .
  • the front surface side locking portion 3k and the back surface side locking portion 3l are provided so as to project from the front surface 3i and the back surface 3j, respectively.
  • the thickness of the front surface side locking portion 3k and the thickness of the back surface side locking portion 3l increase, and the reinforcing member 5 is held more stably.
  • the front surface side locking portion 3k and the back surface side locking portion 3l are melted and compressed in the case of the resin panel 1, and the front surface 3i and the back surface side locking portion 3l are formed. It becomes almost flush with the back surface 3j. At the time of compression, the rigidity of the front surface side locking portion 3k and the back surface side locking portion 3l is enhanced, so that the reinforcing member 5 is held more stably.
  • the reinforcing member 6 is also held in the insertion hole 3e by the same configuration.
  • the reinforcing members 5 and 6 have air flow paths 5 c and 6 c.
  • the air flow paths 5c, 6c are provided from the adjacent portions 5a, 6a to the protruding portions 5b, 6b. Openings 5d, 6d, 5e, 6e are provided in the adjacent portions 5a, 6a and the protruding portions 5b, 6b, respectively, so that the air can be easily removed at the time of manufacture.
  • the adjacent portions 5a and 6a have a plurality of (in the present embodiment, four at 90.degree. Intervals) openings 5d and 6d (in the present embodiment, 90) in the circumferential direction. 4) are provided at intervals.
  • the insertion hole 3 d includes a narrow portion 3 g and a wide portion 3 h.
  • the width of the insertion hole 3d in the wide width portion 3h is wider than the width of the insertion hole 3d in the narrow width portion 3g. That is, the wide portion 3h is recessed by one step than the narrow portion 3g.
  • the gap 3 f is provided in the wide portion 3 h.
  • the insertion hole 3e also has the same configuration.
  • the narrow portion 3g is provided at a portion where the front locking portion 3k and the back locking portion 3l are provided.
  • the wide portion 3h is provided in the through hole 3m between the front locking portion 3k and the back locking portion 3l.
  • the air between the core 3 and the resin sheet is discharged through the openings 5d and 6d, the air flow paths 5c and 6c, and the openings 5e and 6e. After the air is discharged, the openings 5e and 6e may be closed.
  • Grooves 3b communicating with the openings 5d, 6d are provided on the surface of the core member 3 so as to further facilitate air removal during manufacture. Further, the grooves 3b are formed in a lattice, which further facilitates air removal at the time of manufacture.
  • the air flow path 4 is provided between the outer surface of the reinforcing member 5 and the inner surface of the insertion hole 3d.
  • the air between the core material 3 and the resin sheet includes the groove 3b, the air flow path 4, the openings 5d and 6d, the air flow paths 5c and 6c, and the openings 5e and 6e. Exhausted through.
  • a plurality of (two in the present embodiment) reinforcing members 5 and 6 are provided at intervals.
  • the two reinforcing members 5 and 6 are connected to each other by the connecting member 7.
  • the connection member 7 is disposed along the side surface 3 c of the core 3.
  • the side surfaces 3a and 3c face each other.
  • the vertically penetrated openings 5 d and 6 d can be used to position the reinforcing members 5 and 6 when connecting the reinforcing members 5 and 6 to the connecting member 7.
  • the reinforcing members 5 and 6 can be positioned by inserting pins into the openings 5 d and 6 d.
  • the resin wall 2 which comprises the panel part 1a is provided with the front wall 2a, the back wall 2b, and the surrounding wall 2c which connects these.
  • the core 3 and the adjacent portions 5a and 6a are sandwiched by the front wall 2a and the back wall 2b and surrounded by the peripheral wall 2c.
  • the resin wall 2 constituting the projecting portions 1b and 1c includes a peripheral wall 2d and an end wall 2e.
  • the circumferential surfaces of the protrusions 5b and 6b are surrounded by the peripheral wall 2d, and the end faces of the protrusions 5b and 6b are covered by the end wall 2e.
  • the walls 2 a to 2 e are connected to each other, and the core 3 and the reinforcing members 5 and 6 are entirely surrounded by the resin wall 2.
  • the core material 3 and the reinforcing members 5 and 6 are preferably completely surrounded by the resin wall 2, but a portion may be exposed.
  • Examples of applications of the resin panel 1 include automobile headrests, chair backrests, partitions, side rails, and the like.
  • the molding machine 10 includes a pair of resin sheet forming devices 20 and a pair of molds 21 and 31.
  • Each resin sheet forming apparatus 20 includes a hopper 12, an extruder 13, an accumulator 17, and a T-die 18.
  • the extruder 13 and the accumulator 17 are connected via a connecting pipe 25.
  • the accumulator 17 and the T-die 18 are connected via a connecting pipe 27.
  • the hopper 12 is used to introduce the raw material resin 11 into the cylinder 13 a of the extruder 13.
  • the form of the raw material resin 11 is not particularly limited, but is usually in the form of pellets.
  • the raw material resin is, for example, a thermoplastic resin such as polyolefin, and examples of the polyolefin include low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer and mixtures thereof.
  • the raw material resin 11 is introduced into the cylinder 13a from the hopper 12 and then melted by being heated in the cylinder 13a to become a molten resin.
  • the screw is disposed in the cylinder 13a and is conveyed while kneading the molten resin by its rotation.
  • a gear device is provided at the proximal end of the screw, and the screw device is rotationally driven by the gear device.
  • the number of screws disposed in the cylinder 13a may be one or two or more.
  • the molten resin is extruded from the resin extrusion port of the cylinder 13 a and injected into the accumulator 17 through the connecting pipe 25.
  • the accumulator 17 includes a cylinder 17a and a piston 17b slidable therein, and the molten resin 11a can be stored in the cylinder 17a. Then, after the molten resin 11a is stored in the cylinder 17a by a predetermined amount, the piston 17b is moved to extrude the molten resin 11a from the slit provided in the T die 18 through the connecting pipe 27 and hang down to be in a molten state.
  • the resin sheets 23 and 33 are formed.
  • the resin sheets 23 and 33 are suspended between the molds 21 and 31.
  • the molds 21 and 31 have cavities 21a and 31a, and pinch off portions 21b and 31b are provided so as to surround the cavities 21a and 31a.
  • vacuum suction holes (not shown) are provided, and the resin sheets 23 and 33 are vacuum suctioned through the vacuum suction holes and along the inner surfaces of the cavities 21a and 31a of the molds 21 and 31. It is possible to shape in the shape of The decompression suction hole is a very small hole, and one end thereof is communicated with the inner surface of the cavity 21a, 31a through the inside of the mold 21, 31, and the other end is connected to the decompression device.
  • the method of the present embodiment comprises a drooping step, a shaping step, an inserting step, and a clamping step. The details will be described below.
  • the shaping step as shown in FIGS. 5 to 6, while the resin sheets 23 and 33 are in contact with the pinch-off portions 21b and 31b, respectively, vacuum suction is performed by the molds 21 and 31.
  • the resin sheets 23, 33 are shaped into a shape along the inner surfaces of the cavities 21a, 31a.
  • the shaping process may be performed after the inserting process. Also, it may be performed before the mold clamping process or may be performed simultaneously with the mold clamping process.
  • the shaping process may be omitted.
  • the core material 3 and the reinforcing members 5 and 6 are disposed between the resin sheets 23 and 33.
  • the core member 3 is supported by the reinforcing members 5 and 6, and the reinforcing members 5 and 6 are supported by the supporting device 8, thereby accurately arranging the core member 3 and the reinforcing members 5 and 6.
  • the support device 8 has elongated insertion portions 8a and 8b. As shown in FIGS. 10 to 11, the support device 8 supports the reinforcing members 5 and 6 by inserting the insertion portions 8a and 8b into the air flow paths 5c and 6c, respectively.
  • the support device 8 includes enlarged diameter portions 8a2 and 8b2 at the root side of the insertion portions 8a and 8b.
  • the reinforcement members 5 and 6 can be positioned in the longitudinal direction of the reinforcement members 5 and 6 by bringing the reinforcement members 5 and 6 into contact with the enlarged diameter portions 8 a 2 and 8 b 2.
  • the longitudinal length Lb of the insertion portion 8b is longer than the longitudinal length La of the insertion portion 8a.
  • the tip of the insertion portion 8b is disposed so as to protrude further than the tip of the insertion portion 8a. Therefore, after the insertion portion 8b is inserted into the air flow path 6c, the insertion portion 8a can be inserted into the air flow path 5c, which is excellent in workability.
  • the insertion portion 8a includes a pair of insertion pieces 8a1. As shown in FIG. 11A, the insertion portion 8a is configured to press the inner surface of the reinforcing member 5 by widening the distance between the pair of insertion pieces 8a1 with the insertion portion 8a inserted into the air flow path 5c. .
  • the pair of insertion pieces 8a1 is attached to the pair of linear sliders 8a3, and the distance between the pair of insertion pieces 8a1 changes with the sliding movement of the pair of linear sliders 8a3.
  • the reinforcing member 5 is supported with the reinforcing member 5 facing in the horizontal direction as in the present embodiment, there is a risk that the reinforcing member 5 may be detached from the supporting device 8. Is securely fixed to the support device 8.
  • the insertion part 8b is comprised by one rod in this embodiment, you may make it the structure similar to the insertion part 8a.
  • the resin panel 1 is inevitably A mold having a size corresponding to the long side of the mold is required, and the mold is enlarged.
  • the metal sheet 23, 33 is made of gold so that the hanging direction You can design a mold. Therefore, the mold size can be reduced.
  • FIG. 11A there is a gap between the pair of insertion pieces 8a1.
  • FIG. 11B there is also a gap between the insertion portion 8b and the inner surface of the protrusion 6b. Therefore, even if the insertion portions 8a and 8b are inserted into the air flow paths 5c and 6c, the air flow paths 5c and 6c are not blocked, so that the air can be smoothly removed through the air flow paths 5c and 6c.
  • the molds 21 and 31 have the end portions of the reinforcing member 5 Slide cores 21c, 21d, 31c, 31d (hereinafter, “slide cores 21c and the like") are provided at opposing positions.
  • the slide cores 21c and 31c are provided with pinch-off portions corresponding to the end portions of the protruding portions 5b.
  • the slide cores 21d, 31d are provided with pinch-off portions corresponding to the end portions of the protruding portions 6b.
  • the slide cores 21c and 31c are clamped, and the end face of the protrusion 5b is covered with the resin wall 2, and the slide cores 21d and 31d are clamped, and the end face of the protrusion 6b is covered with the resin wall 2.
  • the slide cores 21c and the like may be directly provided to the molds 21 and 31, but in the present embodiment, the slide cores 21c and the like are provided to the separation blocks 21c1, 21d1, 31c1, and 31d1 provided separably to the molds 21 and 31. Is provided. According to such a configuration, it is possible to easily cope with the shape change of the protrusions 5 b and 6 b.
  • the slide cores 21c and the like are arranged at the retracted position as shown in FIG. 22 when the molds 21 and 31 are clamped, so that the slide cores 21c and the like do not interfere with the insertion portions 8a and 8b. It has become.
  • the resin sheets 23 and 33 are formed on the portions other than the end portions of the protruding portions 5b and 6b (that is, the portions other than the portion where the slide core 21c and the like are provided). It pinches and welds with pinch off parts 21b and 31b.
  • the slide core 21c and the like are clamped.
  • the resin sheets 23 and 33 are sandwiched and pinched by the pinch-off portions of the slide core 21 c and the like also at the end portions of the protruding portions 5 b and 6 b. Since the slide core 21 c and the like are disposed at the retracted position when the molds 21 and 31 are clamped, the resin sheets 23 and 33 are stretched by that amount.
  • the resin sheets 23 and 33 are gradually slackened, and the slide core 21c and the like are clamped in a slackened state (in this case, The slide core 21c and the like are disposed at the clamping position shown in FIG. While the resin sheets 23 and 33 are stretched to cover the end faces of the projecting portions 5b and 6b when clamping the slide core 21c and the like, the slide cores 21c and the like are clamped while the resin sheets 23 and 33 are slackened. Therefore, the resin sheets 23 and 33 are not stretched locally excessively, and the resin wall 2 is prevented from being extremely thin in the vicinity of the end faces of the protruding portions 5 b and 6 b.
  • Air may be entrapped between the resin sheets 23 and 33 and the core 3 when the molds 21 and 31 are clamped. This air may be formed by the grooves 3b, the openings 5d and 6d, and the air flow path 5c. , 6c and the openings 5e, 6e, the air is prevented from remaining between the resin sheets 23, 33 and the core member 3 because the air is discharged to the outside.
  • the openings 5 e and 6 e are opened to the outside because the slide core 21 c and the like are not clamped. For this reason, air removal is performed smoothly.
  • the position of the end 3k1 of the front surface side locking portion 3k and the position of the end portion 3l1 of the back surface side locking portion 3l coincide in plan view. Even in such a mode, the same function and effect as those of the first embodiment can be obtained.
  • the air flow paths 5c and 6c communicate with the outside through the openings 5d and 6d provided on the side surfaces of the reinforcing members 5 and 6, but the reinforcing members
  • the air flow paths 5c, 6c may communicate with the outside through the gaps between the reinforcing members 5, 6 and the core 3.
  • the openings 5d and 6d may be provided on the end face of the reinforcing members 5 and 6 on the side of the adjacent parts 5a and 6a.
  • the openings 5d and 6d may be any shape that allows air to flow, and may be slits or the like instead of small holes.
  • the openings 5e and 6e are provided on the end faces of the protrusions 5b and 6b, but may be provided at other positions of the protrusions 5b and 6b.
  • the openings 5e and 6e can be provided at portions overlapping the slide core 21c and the like. This portion is not covered by the resin sheet when the molds 21 and 31 are clamped, so even if the openings 5e and 6e are provided at this position, the openings 5e and 6e may be blocked by the resin sheet. Absent.
  • the insertion portion 8a is configured to press the inner surface of the reinforcing member 5 by widening the distance between the pair of insertion pieces 8a1, but the diameter of the circumscribed circle of the insertion portion 8a may be changed by another configuration. You may enlarge it.
  • the projecting piece may be protruded from the side surface of the insertion portion 8a to press the inner surface of the reinforcing member 5.
  • the core material 3 can be omitted if unnecessary.
  • the reinforcing members 5 and 6 may be fixed by bonding or welding the reinforcing members 5 and 6 to the resin wall 2.
  • -Adjacent part 5a, 6a may be made to adjoin along the side of core material 3 instead of making insertion holes 3d and 3e provided in core material 3 insert.
  • core material 3 is constituted by two or more pieces and reinforcement members 5 and 6 are section H-shaped, it may constitute so that core materials of two sheets may be connected using a reinforcement member.
  • the reinforcing members 5 and 6 are connected by the connecting member 7, the reinforcing members 5 and 6 may not be connected.
  • the number of reinforcing members may be one or three or more.
  • four openings 5 d are provided vertically and horizontally, but the openings 5 d may be provided obliquely.
  • the openings provided in the oblique direction have an advantage that it is difficult to contact any of the resin sheets 23 and 33 and the core material 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un panneau en résine capable de supprimer la génération d'air résiduel. À cet effet, la présente invention concerne un panneau en résine comprenant une paroi en résine, un noyau et un élément de renforcement, le noyau et l'élément de renforcement étant entourés par la paroi en résine, l'élément de renforcement ayant un passage d'air, l'élément de renforcement ayant également une partie adjacente adjacente au noyau, et une partie en saillie faisant saillie à partir d'une surface latérale du noyau, et le passage d'air est disposé à travers une section de la partie adjacente à la partie en saillie, et le passage d'air communique avec l'extérieur du passage d'air à la fois dans la partie adjacente et la partie en saillie.
PCT/JP2018/043452 2017-11-29 2018-11-26 Panneau en résine et sa méthode de fabrication WO2019107319A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2017229344 2017-11-29
JP2017-229344 2017-11-29
JP2017-229341 2017-11-29
JP2017229341A JP6959522B2 (ja) 2017-11-29 2017-11-29 樹脂製パネルの製造方法
JP2018-123964 2018-06-29
JP2018123964A JP7078848B2 (ja) 2017-11-29 2018-06-29 樹脂製パネル及びその製造方法

Publications (1)

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WO2019107319A1 true WO2019107319A1 (fr) 2019-06-06

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104809A (ja) * 1984-10-26 1986-05-23 Nissan Shatai Co Ltd 樹脂成形装置
JPS649718A (en) * 1987-07-02 1989-01-13 Nishikawa Kasei Kk Vacuum molding method
JPH10100236A (ja) * 1996-09-27 1998-04-21 Nippon Steel Chem Co Ltd 発泡樹脂充填ブロー成形法及びブロー成形品
JPH11216768A (ja) * 1998-01-30 1999-08-10 Kyoraku Co Ltd 中空二重壁構造体およびその製造方法
JP2001205692A (ja) * 2000-01-31 2001-07-31 Kyoraku Co Ltd 中空二重壁構造体およびその製造方法
JP2014128938A (ja) * 2012-12-28 2014-07-10 Kyoraku Co Ltd 発泡構造材、樹脂製パネル、樹脂製パネルの製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104809A (ja) * 1984-10-26 1986-05-23 Nissan Shatai Co Ltd 樹脂成形装置
JPS649718A (en) * 1987-07-02 1989-01-13 Nishikawa Kasei Kk Vacuum molding method
JPH10100236A (ja) * 1996-09-27 1998-04-21 Nippon Steel Chem Co Ltd 発泡樹脂充填ブロー成形法及びブロー成形品
JPH11216768A (ja) * 1998-01-30 1999-08-10 Kyoraku Co Ltd 中空二重壁構造体およびその製造方法
JP2001205692A (ja) * 2000-01-31 2001-07-31 Kyoraku Co Ltd 中空二重壁構造体およびその製造方法
JP2014128938A (ja) * 2012-12-28 2014-07-10 Kyoraku Co Ltd 発泡構造材、樹脂製パネル、樹脂製パネルの製造方法

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