WO2015064260A1 - 成形装置及び樹脂部材の製造方法 - Google Patents
成形装置及び樹脂部材の製造方法 Download PDFInfo
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- WO2015064260A1 WO2015064260A1 PCT/JP2014/075713 JP2014075713W WO2015064260A1 WO 2015064260 A1 WO2015064260 A1 WO 2015064260A1 JP 2014075713 W JP2014075713 W JP 2014075713W WO 2015064260 A1 WO2015064260 A1 WO 2015064260A1
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- resin material
- thermoplastic resin
- molding
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- passage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C2043/3602—Moulds for making articles of definite length, i.e. discrete articles with means for positioning, fastening or clamping the material to be formed or preforms inside the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
- B29C2043/561—Compression moulding under special conditions, e.g. vacuum under vacuum conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3014—Door linings
Definitions
- the present invention relates to a molding apparatus and a resin member manufacturing method.
- thermoplastic resin material is molded into a resin member with a mold (see, for example, Patent Documents 1 to 3).
- the present invention provides a molding apparatus and a method for producing a resin member that can improve moldability when a rib is formed by molding a heated thermoplastic resin material between molds. The purpose is to obtain.
- the molding apparatus includes a first molding die having a rib molding recess formed on a molding surface, and a counter surface disposed on the molding surface side of the first molding die, which is preheated or heated.
- a second molding die that sandwiches the thermoplastic resin material with the first molding die while the first molding die continues to the bottom of the rib molding recess.
- a first passage that is connected to the suction portion and is sucked by the suction portion, and communicates with the inner space of the rib forming recess continuously from the bottom of the rib forming recess.
- a second path having a bag path shape.
- molding is formed in the shaping
- the first mold has a first passage and a second passage.
- the first passage continues to the bottom of the rib forming recess and communicates with the internal space of the rib forming recess and is connected to the suction portion so that the passage is sucked by the suction portion. For this reason, the suction part sucks the inside of the first passage, whereby the gas generated from the thermoplastic resin material due to the heating flows out into the first passage, and the flow of the thermoplastic resin material into the rib forming concave portion is prevented.
- the second passage is a bag-like passage that continues to the bottom of the rib forming recess and communicates with the internal space of the rib forming recess.
- the second passage can be set in a narrow range compared to the case where the first passage and the suction portion are set, the second passage is set finely (for example, many at a narrow interval) in a limited range of the first mold. be able to.
- a plurality of the first passages are set, and the second passage is set in a region between the plurality of first passages. .
- thermoplastic resin material since the 2nd channel
- a force to flow toward the molding surface side of the first mold is applied to the portion facing the second passage in the thermoplastic resin material and the peripheral portion thereof, the thermoplastic resin material is in contact with the second passage. The facing portion and its peripheral portion easily flow into the rib forming recess.
- the method for producing a resin member according to the third aspect of the present invention uses the molding apparatus according to the first aspect or the second aspect, and a thermoplastic resin between the first mold and the second mold. After the placing step of placing the material and the placing step, the first mold and the second mold are closed and preheated or the thermoplastic resin material is pressurized while being heated and at the suction portion A molding step of sucking the inside of the first passage and molding the thermoplastic resin material.
- the thermoplastic resin material is arranged between the first mold and the second mold.
- the first molding die and the second molding die are closed and preheated or the thermoplastic resin material is pressurized while being heated and the inside of the first passage is sucked by the suction portion, A plastic resin material is molded.
- the gas generated from the thermoplastic resin material by heating flows out into the first passage and the second passage, and the thermoplastic resin material is satisfactorily filled into the rib forming recess.
- a method for producing a resin member comprising: a rib-forming recess formed on a molding surface; and a continuous space formed at a bottom of the rib-forming recess; An arrangement step of arranging a thermoplastic resin material between a first molding die provided with a passage communicating with the first molding die and a second molding die opposed to the molding surface side of the first molding die; and the arrangement step After that, the first mold and the second mold are closed and preheated or the thermoplastic resin material is pressurized while being heated, and a part of the thermoplastic resin material flows into the passage, A molding step of molding the thermoplastic resin material; and a cutting step of excising a portion molded by flowing into the passage with a part of the thermoplastic resin material after the molding step.
- the rib forming recess is formed on the molding surface and the passage is formed continuously with the bottom of the rib forming recess and communicating with the internal space of the rib forming recess.
- a thermoplastic resin material is disposed between the first mold and the second mold disposed opposite to the molding surface side of the first mold.
- the first mold and the second mold are closed and preheated or pressurized with the thermoplastic resin material, and a part of the thermoplastic resin material is caused to flow into the passage.
- a thermoplastic resin material is molded. For this reason, the gas generated from the thermoplastic resin material by heating flows out into the passage, and the thermoplastic resin material is satisfactorily filled into the rib forming recess.
- a part molded by flowing into the passage with a part of the thermoplastic resin material is excised.
- FIGS. 1 to 6B A molding apparatus and a resin member manufacturing method according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6B.
- FIG. 1 is a front view of a vehicle door panel 10 as a resin member viewed from the door inner surface side.
- the door panel 10 is manufactured by a resin member manufacturing method, which will be described later, using a molding apparatus 20 (see FIGS. 2 to 4) according to the present embodiment.
- the door panel 10 constitutes a side door of the vehicle and is disposed on the side of the vehicle.
- a rib 12 having a lattice shape is formed on the upper portion of the door panel 10.
- the rib 12 includes a horizontal rib 14 and a vertical rib 16.
- the lateral ribs 14 and the longitudinal ribs 16 protrude in the door thickness direction (in the vehicle width direction when the door is closed).
- the lateral ribs 14 extend in the door width direction (the vehicle front-rear direction when the door is closed) and are formed in a row in the door vertical direction.
- the vertical ribs 16 extend in the up-down direction of the door and are formed side by side in the door width direction.
- FIG. 2 is a plan view of the first mold 24 applied to the molding apparatus 20 according to the present embodiment as viewed from the molding surface 24A side.
- lattice-shaped rib forming recesses 32 for forming the ribs 12 are formed on the forming surface 24 ⁇ / b> A of the first mold 24.
- the rib forming recesses 32 are formed side by side for forming the plurality of horizontal rib forming recesses 34 formed side by side for forming the horizontal ribs 14 (see FIG. 1) and for forming the vertical ribs 16 (see FIG. 1).
- a plurality of vertical rib forming recesses 36 are examples of vertical rib forming recesses 36.
- the molding apparatus 20 includes a second molding die 26 that is disposed to face the molding surface 24 ⁇ / b> A side of the first molding die 24.
- the first molding die 24 and the second molding die 26 are supported by a lifting device (not shown) so as to be movable in the vertical direction of the device (the direction in which they are separated from each other).
- a pre-heated sheet-shaped (plate-shaped) thermoplastic resin material 50 is sandwiched between the first mold 24 and the second mold 26.
- the molding apparatus 20 has a clamp 28 (schematically illustrated in the drawing) for sandwiching the end portion of the thermoplastic resin material 50, and heating for heating the thermoplastic resin material 50.
- a container 30 illustrated schematically in the figure.
- the clamps 28 are provided in upper and lower pairs on both the left and right sides of the first mold 24 and the second mold 26 to hold the thermoplastic resin material 50 between the first mold 24 and the second mold 26.
- the heater 30 is, for example, a halogen heater that can be disposed on both the front and back sides of the thermoplastic resin material 50 and is removably supported from both the front and back sides of the thermoplastic resin material 50.
- the resin of the thermoplastic resin material 50 for example, polyamide, polyolefin (for example, polypropylene) or the like can be applied.
- the thermoplastic resin material 50 of the present embodiment is composed of a composite material obtained by solidifying fibers (for example, glass fibers or carbon fibers) with a thermoplastic resin, that is, fiber reinforced resin (FRP).
- FRP fiber reinforced resin
- the fiber reinforced resin has a feature that the strength is high but the fluidity at the time of molding is poor compared to a resin containing no reinforced fiber.
- the inside of the first vertical rib forming recess 36 ⁇ / b> X is continuous with the bottom of the first vertical rib forming recess 36 ⁇ / b> X which is any (a part) of the plurality of vertical rib forming recesses 36.
- a first passage 38 (tunnel portion) communicating with the space is formed.
- One end side of a vacuum tube 40 ⁇ / b> A that constitutes a part of the suction unit 40 is connected to the first passage 38.
- the other end of the vacuum tube 40A is connected to a vacuum suction device 40B (illustrated as a block in the drawing) that constitutes a part of the suction unit 40.
- the suction part 40 sucks the first passage 38 by operating the vacuum suction device 40B when the first mold 24 and the second mold 26 are closed.
- the first vertical rib forming recess 36X is a portion of the plurality of vertical rib forming recesses 36 where the rib forming is difficult, and the first vertical rib forming recess 36X is provided via the first passage 38 to facilitate the rib forming.
- the structure communicates with the suction unit 40.
- the first mold 24 is continuous with the bottom of the second vertical rib forming recess 36 ⁇ / b> Y, which is one of the other vertical rib forming recesses 36 (the other part).
- a second path 42 in the form of a bag path that communicates with the internal space of the second vertical rib forming recess 36Y is formed.
- the bag path here refers to the front end side of a passage that opens only at the bottom side of the second vertical rib forming recess 36Y and communicates with the opening (in this embodiment, separated from the internal space of the second vertical rib forming recess 36Y). It is a dead end at the end of the passage extending in the direction.
- the second vertical rib forming recess 36Y is a portion of the plurality of vertical rib forming recesses 36 that has the highest difficulty in rib forming after the first vertical rib forming recess 36X (see FIG. 3).
- the second passage 42 is communicated.
- path 42 can be set to a narrow range compared with the case where the 1st channel
- the range can also be set finely (for example, many at narrow intervals).
- a plurality of first vertical rib forming recesses 36 ⁇ / b> X (and first passages 38 (see FIG. 3)) are set. It is formed in a region C2 on the rear side of the door in the middle part in the front-rear direction.
- the second vertical rib forming recess 36Y is formed in a region A at the center in the front-rear direction of the door, and is set between a region C1 and a region C2 where the plurality of first vertical rib forming recesses 36X are formed.
- the second passage 42 shown in FIG. 4 is set in a region between the plurality of first passages 38 (see FIG. 3).
- the third vertical rib forming is not connected to the first passage 38 (see FIG. 3) and is not connected to the second passage 42 (see FIG. 4).
- the recess 36Z is set in a region B1 at the door front side end and a region B2 at the door rear side end.
- the third vertical rib forming recess 36Z is a portion where rib forming is relatively easy as compared to the first vertical rib forming recess 36X and the second vertical rib forming recess 36Y.
- the plurality of lateral rib forming recesses 34 are connected to a passage corresponding to the first passage 38 (see FIG. 3) and a passage corresponding to the second passage 42 (see FIG. 4). It has not been.
- thermoplastic resin material 50 is arranged between the first mold 24 and the second mold 26 shown in FIG. Specifically, a thermoplastic resin material 50 is disposed between the first mold 24 and the second mold 26, and the thermoplastic resin material 50 is held by the clamp 28.
- the thermoplastic resin material 50 is heated. Specifically, the heater 30 is disposed on the front and back sides of the thermoplastic resin material 50, and the thermoplastic resin material 50 is heated by the heater 30. As a result, the thermoplastic resin material 50 disposed between the first mold 24 and the second mold 26 is heated. The heater 30 is retracted from the front and back sides of the thermoplastic resin material 50 after heating the thermoplastic resin material 50.
- the first molding die 24 and the second molding die 26 are closed to pressurize the preheated thermoplastic resin material 50 and the inside of the first passage 38 is formed by the suction portion 40.
- the portion of the thermoplastic resin material 50 is sucked into the first passage 38 and the second passage 42 (see FIG. 4), and the thermoplastic resin material 50 is molded.
- the first mold 24 and the second mold 26 are moved up by a lifting device (not shown) and the second mold 26 is lowered by a lifting device (not shown). Is closed and the thermoplastic resin material 50 is pressed from both the front and back sides.
- the vacuum suction device 40B of the suction unit 40 is operated to suck the air in the first passage 38 through the vacuum tube 40A.
- FIG. 5A and 5B are schematic cross-sectional views for explaining the molding process.
- the gas in the first vertical rib forming recess 36X is sucked by the suction portion 40 (see FIG. 3) in the first passage 38 communicating with the first vertical rib forming recess 36X shown in FIG. 5A. 38 (refer to the direction of the arrow a) and the flow of the thermoplastic resin material 50 into the first vertical rib forming recess 36X is promoted.
- thermoplastic resin material 50 Even if gas is generated from the thermoplastic resin material 50 by heating (or even if a plurality of thermoplastic resin materials 50 are superposed, gas is emitted from between the materials), Even if the thermoplastic resin material 50 includes the reinforcing fibers 52, a part of the thermoplastic resin material 50 flows into the first longitudinal rib forming recess 36 ⁇ / b> X in a state where the reinforcing fibers 52 are included. Then, as the air in the first passage 38 continues to be sucked toward the suction portion 40 (see FIG. 3), a part of the thermoplastic resin material 50 is contained in the first passage 38 as shown in FIG. 5B. Flows in.
- the gas generated from the thermoplastic resin material 50 flows through the first passage 38 to the suction portion 40 (see FIG. 3), and a part of the thermoplastic resin material 50 includes the reinforcing fibers 52.
- the inside of the first vertical rib forming recess 36X is satisfactorily filled.
- thermoplastic resin material 50 flows into the second vertical rib forming recess 36 ⁇ / b> Y leading to the second passage 42 shown in FIG. 4, the gas generated from the thermoplastic resin material 50 by the heating flows out into the second passage 42. The Therefore, the thermoplastic resin material 50 is satisfactorily filled (in a state similar to the state shown in FIG. 5B) into the second vertical rib forming recess 36 ⁇ / b> Y communicating with the second passage 42.
- the first passage 38 shown in FIG. Even if the suction portion 40 cannot be set, the second vertical rib forming that is not connected to the suction portion 40 can be achieved by finely setting the bag-path-like second passage 42 (see FIG. 4) that can save space.
- the thermoplastic resin material 50 is satisfactorily filled into the recess 36Y.
- path 38 (refer FIG. 3) is provided in the door front-back direction both sides of the recessed part 36Y for 2nd vertical rib shaping
- path 42 (refer FIG. 4).
- the first vertical rib forming recess 36X leading to is set. For this reason, when the suction portion 40 shown in FIG. 3 sucks the first passage 38, the thermoplastic resin material 50 is transferred to the first vertical side on both sides in the front-rear direction of the second vertical rib forming recess 36Y shown in FIG. It is sucked into the rib forming recess 36X.
- thermoplastic resin material 50 located on the opposite side of the second vertical rib molding recess 36Y shown in FIG.
- the thermoplastic resin material 50 easily flows into the second vertical rib forming recess 36Y.
- thermoplastic resin material 50 As described above, as shown in FIG. 5B, a part of the thermoplastic resin material 50 is placed along the thermoplastic resin material 50 along the molding surface 24 ⁇ / b> A of the first mold 24 and the molding surface 26 ⁇ / b> A of the second mold 26.
- the thermoplastic resin material 50 is molded by flowing into the first passage 38 and the second passage 42 (see FIG. 4).
- a part of the thermoplastic resin material 50 flows into the first passage 38 and the second passage 42 (see FIG. 4), so that a portion formed into a protruding shape, that is, a protruding portion 50B (see FIG. 6A). Become.
- the first molding die 24 shown in FIG. 3 is lowered by an elevator device (not shown), and the second molding die 26 is raised by an elevator device (not shown), and a molded thermoplastic resin material 50 is formed. Is released (cooled) and cooled.
- the protrusion 50B formed by a part of the thermoplastic resin material 50 shown in FIG. 6A is cut as shown in FIG. 6B.
- the protrusion 50B before excision is indicated by a two-dot chain line.
- the protrusion 50B can be excised (folded or cut) with a water jet or pliers.
- the door panel 10 see FIG. 1 is formed.
- the end face 54 from which the protrusion 50B (see FIG. 6A) is cut basically has traces of cutting (or reinforcing fibers and resin). There remains a trace indicating that it was sucked during the molding process.
- the heated thermoplastic resin material 50 is molded between the first molding die 24 and the second molding die 26 shown in FIG. 1) can be improved.
- thermoplastic resin with a low pressurization force The material 50 can be press-molded. Further, if the pressing force at the time of molding in the present embodiment and the contrast structure is made equal, this embodiment can mold a rib having a higher height, a rib having a more difficult shape, or the like. That is, according to this embodiment, the freedom degree of rib height setting and rib shape setting is also increased. In addition, since the pressing force at the time of molding is smaller than that of the contrast structure, an increase in size of the apparatus can be suppressed.
- the current resin molding is mainly injection-molded.
- injection molding not only requires large-scale equipment and expensive molds, but also raises the mold to a high temperature during molding and lowers the temperature of the molded product after molding, resulting in cycle time. Is getting longer.
- the resin material used for molding is a chip material, the chip material must be melted in advance at the time of molding. For this reason, a melting furnace is an indispensable facility.
- resin for example, polypropylene, polyamide, etc.
- the molding of the fiber reinforced resin material is limited to the molding of a thermosetting carbon fiber reinforced resin material or the like in a field where high strength is required, such as an automobile body or an aircraft. That is, the molding of such a fiber reinforced resin material increases the manufacturing cost and requires a long time for molding, so that it can be practically adapted only to a small amount of production.
- the use of a thermoplastic resin material contributes to cost reduction and recycling, and since it is not injection molding in which a molten molding material is injected and filled into a cavity, The cycle time can be shortened, and good moldability can be ensured by the method for producing a resin member using the molding apparatus 20 according to this embodiment. Therefore, the resin member manufacturing method using the molding apparatus 20 according to the present embodiment is advantageous in mass production.
- first vertical rib forming recess 36X vertical rib forming recess 36 connected to the first passage 38 (see FIG. 3)
- second vertical rib forming recess 36Y second passage 42
- the vertical rib forming recess 36) that is not set is set in one of the regions A, C1, C2, B1, and B2, depending on the degree of difficulty in rib forming.
- the arrangement position of the first vertical rib forming recess 36X, the second vertical rib forming recess 36Y, and the third vertical rib forming recess 36Z is the molding surface of the first mold 24 shown in FIGS. 24A and the molding surface 26A of the second molding die 26, how the first molding die 24 and the second molding die 26 contact the thermoplastic resin material 50 (the timing of landing on each part of the thermoplastic resin material 50, The pressure acting on each part of the thermoplastic resin material 50) and the shape of the rib to be molded are set.
- first vertical rib forming recess 36X or the third vertical rib forming recess 36Z may be set in the region A of FIG. Further, the first vertical rib forming recess 36X or the second vertical rib forming recess 36Y may be set in the region B1, and the first vertical rib forming recess 36X or the second vertical rib forming in the region B2. The recess 36Y may be set. Further, the second vertical rib forming recess 36Y or the third vertical rib forming recess 36Z may be set in the region C1, and the second vertical rib forming recess 36Y or the third vertical rib forming recess may be set in the region C2. 36Z may be set.
- first passage 38 (see FIG. 3) and the second passage 42 (see FIG. 3) of the above-described embodiment are respectively provided at the bottoms of the three transverse rib forming recesses 34 for forming the lateral rib 14 (see FIG. 1). 4) may be connected.
- the vertical rib forming recess 36 may be set according to the position in the front-rear direction of the door connecting the first passage 38 (see FIG. 3) and the second passage 42 (see FIG. 4).
- the first mold may be a mold in which a plurality of rib forming recesses are formed on the molding surface in order to form a plurality of ribs in which the ribs are not continuous.
- the first passage may be connected to any of the plurality of rib forming recesses
- the second passage may be connected to any of the plurality of rib forming recesses.
- thermoplastic resin material 50 shown by FIG. 3 etc. is made into one board
- molding die is A plurality of plate materials may be superimposed. In this case, the size of the plurality of plate members may be different.
- the thermoplastic resin material 50 is heated by the heater 30 of the halogen heater.
- the thermoplastic resin material may be heated by other heating such as heating by a heating furnace, for example. You may carry out by the method.
- the heating process is performed after the arrangement
- the thermoplastic resin material may be pressurized while the first molding die and the second molding die are closed and heated in the molding step without providing the heating step before the molding step. That is, for example, a heater is provided on each molding surface side of the first mold and the second mold, and the thermoplastic resin material is sandwiched between the first mold and the second mold while being heated by the heater. Such a configuration may be adopted.
- the second passage is set in a region between the plurality of first passages such that the first passage is set in a region between the plurality of second passages. It is possible to adopt a configuration that is not.
- the passages continuous to the bottom of the rib forming recess are provided.
- the first passage (38) (passage connected to the suction portion (40)) is included, and all of the passages continuing to the bottom of the rib forming recess (vertical rib forming recess 36) are the second.
- the thing of a passage (42) is also included.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
図1には、樹脂部材としての車両用のドアパネル10がドア内面側から見た正面図で示されている。このドアパネル10は、本実施形態に係る成形装置20(図2~図4参照)を用いて、後述する樹脂部材の製造方法によって製造されたものである。ドアパネル10は、車両のサイドドアを構成しており、車両側部に配置される。ドアパネル10の上部には、格子状を成すリブ12が形成されている。リブ12は、横リブ14及び縦リブ16を備えている。横リブ14及び縦リブ16は、ドア厚さ方向(ドア閉止状態では車両幅方向内側)に突出している。横リブ14は、ドア幅方向(ドア閉止状態では車両前後方向)に延びており、ドア上下方向に複数本並んで形成されている。これに対して、縦リブ16は、ドア上下方向に延びており、ドア幅方向に複数本並んで形成されている。
図2には、本実施形態に係る成形装置20に適用される第一成形型24がその成形面24Aの側から見た平面図で示されている。図2に示されるように、第一成形型24の成形面24Aには、リブ12(図1参照)を形成するための格子状のリブ成形用凹部32が形成されている。リブ成形用凹部32は、横リブ14(図1参照)の成形用として並んで形成された複数の横リブ成形用凹部34と、縦リブ16(図1参照)の成形用として並んで形成された複数の縦リブ成形用凹部36と、を備えている。
次に、成形装置20を用いた樹脂部材(ドアパネル10)の製造方法について説明しながら、本実施形態の作用及び効果について説明する。
なお、図2に示される第一縦リブ成形用凹部36X(第一通路38(図3参照)に接続された縦リブ成形用凹部36)、第二縦リブ成形用凹部36Y(第二通路42(図4参照)に接続された縦リブ成形用凹部36)、及び第三縦リブ成形用凹部36Z(第一通路38(図3参照)にも第二通路42(図4参照)にも接続されない縦リブ成形用凹部36)は、リブ成形の困難性の度合いに応じて、領域A、C1、C2、B1、B2のいずれかに設定される。すなわち、第一縦リブ成形用凹部36X、第二縦リブ成形用凹部36Y、及び第三縦リブ成形用凹部36Zの配置位置は、図3及び図4に示される第一成形型24の成形面24Aと第二成形型26の成形面26Aとのクリアランス、第一成形型24及び第二成形型26の熱可塑性樹脂材50への当たり方(熱可塑性樹脂材50の各部位に着地するタイミングや熱可塑性樹脂材50の各部位に作用する圧力)、及び成形するリブの形状等に応じて設定される。
Claims (4)
- 成形面にリブ成形用凹部が形成された第一成形型と、
前記第一成形型の成形面側に対向配置され、予め加熱された又は加熱しながら熱可塑性樹脂材を前記第一成形型との間に挟む第二成形型と、
を有し、
前記第一成形型は、
前記リブ成形用凹部の底部に連続して当該リブ成形用凹部の内部空間に連通すると共に吸引部に接続されて通路内が前記吸引部によって吸引される第一通路と、
前記リブ成形用凹部の底部に連続して当該リブ成形用凹部の内部空間に連通する袋小路状の第二通路と、を備える成形装置。 - 前記第一通路が複数設定される共に、前記第二通路が複数の前記第一通路の間の領域に設定されている、請求項1記載の成形装置。
- 請求項1又は請求項2に記載の成形装置を用い、
前記第一成形型と前記第二成形型との間に熱可塑性樹脂材を配置する配置工程と、
前記配置工程の後、前記第一成形型と前記第二成形型とを閉じて予め加熱された又は加熱しながら前記熱可塑性樹脂材を加圧すると共に前記吸引部で前記第一通路内を吸引し、前記熱可塑性樹脂材を成形する成形工程と、
を有する樹脂部材の製造方法。 - 成形面にリブ成形用凹部が形成されると共に前記リブ成形用凹部の底部に連続して形成されかつ当該リブ成形用凹部の内部空間に連通する通路を備えた第一成形型と、前記第一成形型の成形面側に対向配置された第二成形型と、の間に熱可塑性樹脂材を配置する配置工程と、
前記配置工程の後、前記第一成形型と前記第二成形型とを閉じて予め加熱された又は加熱しながら前記熱可塑性樹脂材を加圧し、前記熱可塑性樹脂材の一部を前記通路まで流入させ、前記熱可塑性樹脂材を成形する成形工程と、
前記成形工程の後、前記熱可塑性樹脂材の一部で前記通路に流入したことで成形された部位を切除する切除工程と、
を有する樹脂部材の製造方法。
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DE112014004922.0T DE112014004922B4 (de) | 2013-10-28 | 2014-09-26 | Formpressvorrichtung und Verfahren zur Herstellung von Harzbauteilen |
US15/030,792 US20160257039A1 (en) | 2013-10-28 | 2014-09-26 | Molding device and method of manufacturing resin member |
CN201480058688.7A CN105658396B (zh) | 2013-10-28 | 2014-09-26 | 成形装置以及树脂部件的制造方法 |
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JP2013223385A JP5900461B2 (ja) | 2013-10-28 | 2013-10-28 | 成形装置及び樹脂部材の製造方法 |
JP2013-223385 | 2013-10-28 |
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- 2013-10-28 JP JP2013223385A patent/JP5900461B2/ja active Active
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2014
- 2014-09-26 US US15/030,792 patent/US20160257039A1/en not_active Abandoned
- 2014-09-26 WO PCT/JP2014/075713 patent/WO2015064260A1/ja active Application Filing
- 2014-09-26 CN CN201480058688.7A patent/CN105658396B/zh active Active
- 2014-09-26 DE DE112014004922.0T patent/DE112014004922B4/de not_active Expired - Fee Related
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JPH06143314A (ja) * | 1992-11-10 | 1994-05-24 | Hosokawa Seisakusho:Kk | 深リブを持つパネルの成形装置 |
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DE112014004922T5 (de) | 2016-07-28 |
CN105658396B (zh) | 2018-06-12 |
CN105658396A (zh) | 2016-06-08 |
JP5900461B2 (ja) | 2016-04-06 |
JP2015085536A (ja) | 2015-05-07 |
US20160257039A1 (en) | 2016-09-08 |
DE112014004922B4 (de) | 2020-04-02 |
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