JP2014091303A - Molding apparatus and molding method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retain a tabular component at an arrangement site more securely than ever.SOLUTION: Retention mechanisms of the provided apparatus comprise: a first mechanism 41 configured on a first mold 31 in a state where a tabular component 20 can be temporarily retained on an arrangement site 38; and second mechanisms 42a through 42d capable of physically pressing the tabular component 20 toward the arrangement site 38; after the first mold 31 and second mold 32 have been mated and closed in a state where the tabular component 20 is being temporarily retained on the arrangement site 38 by the first mechanism 41, the tabular component 20 is pressed onto the arrangement site 38 by the second mechanisms 42a through 42d so as to enable the retention of the tabular component 20 on the arrangement site 38 in opposition to the pressure of hot air.

Description

  The present invention relates to a molding apparatus including a first mold, a second mold, a cavity, and a holding mechanism (a mechanism capable of holding a planar member at the position where the first mold is disposed) and a molding method using the same.

As this type of molding apparatus, a molding apparatus including a first mold, a second mold, and a cavity is known (see Patent Document 1). The first mold and the second mold are mold members that can be closed to each other, and the cavity is a molding space formed between the first mold and the second mold.
Then, a molded product made of resin is molded by a molding device. This type of molded product may be reinforced by being integrated with a planar member (made of resin).
For example, in the known technique, a passage is formed in the first mold, and the cavity and a vacuum pump outside the apparatus are communicated. At this time, the opening of the passage is formed on the inner surface of the first mold facing the cavity (placement portion of the planar member). And after arrange | positioning a planar member in an arrangement | positioning site | part, the inside of a channel | path is pressure-reduced (with a holding mechanism), and a planar member is partially adsorbed to an arrangement | positioning site | part. Next, the molded product is formed in the cavity and integrated with the planar member.
And in the above-mentioned structure, it is preferable to heat a planar member by blowing of hot air. Thus, by eliminating the temperature difference between the molding material and the planar member as much as possible, the planar member can be suitably integrated with the molded product during molding.

JP-A-11-34154

By the way, in the above-described configuration, the planar member is heated by blowing hot air while being partially adsorbed to the arrangement site. At this time, in the configuration of the known technique, the planar member may move due to the pressure of the hot air (wind pressure), and may be displaced from the arrangement site.
The present invention has been devised in view of the above points, and a problem to be solved by the present invention is to more reliably hold a planar member at an arrangement site.

As means for solving the above problems, the molding apparatus of the first invention is formed between the first mold, the second mold that can be closed to the first mold, and the first mold and the second mold. A cavity, an arrangement part formed on the inner surface of the first mold facing the cavity, and a holding mechanism capable of holding a state in which the planar member is arranged in the arrangement part.
In the present invention, the planar member can be integrated with the planar member while molding the resin molded product in the cavity after the planar member is heated by blowing hot air while being held at the arrangement site by the holding mechanism. Moreover, the holding | maintenance by a holding mechanism can be stopped and a molded article can be taken out from a cavity with a planar member. In this type of apparatus configuration, it is desirable that the planar member can be more reliably held at the arrangement site.

Therefore, in the present invention, the holding mechanism described above is provided in the first mold and can temporarily fix the planar member to the arrangement site, and the first mechanism capable of physically pressing the planar member toward the arrangement site. Two mechanisms.
Then, while temporarily fixing the planar member to the arrangement site by the first mechanism, after closing the first mold and the second mold, by pressing the planar member to the arrangement site by the second mechanism, It is the structure which can hold | maintain a planar member in an arrangement | positioning site | part against pressure.
In the present invention, the first mechanism and the second mechanism more reliably hold the planar member at the arrangement site, thereby preventing the positional deviation of the planar member due to hot air blowing as much as possible.

The molding method of the molded product of the second invention is a molding method of the molded product using the molding device of the first invention, and has the following first to third steps.
First step: The planar member is temporarily fixed to the arrangement site by suction by the first mechanism.
Second step: After closing the first mold and the second mold, hot air is blown while pressing the planar member against the arrangement site by the second mechanism.
Third step: After the suction of the first mechanism is stopped, the molding material is injected into the cavity, and the molded product is integrated with the planar member while being molded.
In the present invention, in the second step, by holding the planar member at the arrangement site by the second mechanism, the positional deviation of the planar member due to the blowing of hot air can be prevented as much as possible. Further, in the third step, by stopping the suction of the first mechanism, it is possible to prevent the molding material from being sucked by the first mechanism as much as possible.

  According to the first aspect of the present invention, the planar member can be more reliably held at the arrangement site. Moreover, according to the 2nd invention, a molded article can be shape | molded suitably, hold | maintaining a planar member to an arrangement | positioning site | part more reliably.

It is a perspective view of a vehicle seat. It is a perspective view of a part of frame member. It is a schematic sectional drawing of a shaping | molding apparatus. It is another schematic sectional drawing of a 2nd type | mold. It is a schematic sectional drawing of a shaping | molding apparatus, (a) is a figure at the time of operating a 1st mechanism, (b) is a figure at the time of operating a 2nd mechanism. It is another schematic sectional drawing of a shaping | molding apparatus, (a) is a figure at the time of hot air spraying, (b) is a figure at the time of shaping | molding of a molded article, (c) is at the time of taking out a molded article FIG.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In FIGS. 1 and 2, a reference numeral FT is attached to the front of the vehicle seat, a reference numeral BK is attached to the rear of the vehicle seat, a reference sign UP is provided above the vehicle seat, and a reference sign DW is provided below the vehicle seat.
The vehicle seat 2 in FIG. 1 has a seat cushion 4 and a seat back 6. Each of these seat constituent members has a frame member (4F, 6F) forming a seat skeleton, a cushion material (4P, 6P) forming a seat outer shape, and a covering material (4S, 6S) covering the cushion material.
Here, the cushion material (4P, 6P, not shown) can be formed of, for example, polyurethane foam (density: 10 kg / m ^{3 to} 60 kg / m ³ ). The skin material (4S, 6S, not shown) can be formed of fabric (woven fabric, knitted fabric, non-woven fabric) or leather (natural leather, synthetic leather).

[Frame member (example of molded product)]
The frame member 6F is an arch-shaped frame member formed following the outer shape of the seat, and includes an upper frame 10 and a pair of side frames 12 (see FIGS. 1 and 2).
The upper frame 10 is a rod-shaped member (substantially inverted U shape in front view) that forms the upper part of the seat. The pair of side frames 12 is a member that forms a seat side, and is fixed to the lower end (free end) side of the upper frame 10. In the present embodiment, the upper frame 10 and the pair of side frames 12 are separated from each other, but the upper frame 10 and the pair of side frames 12 can be integrally formed (an integral structure frame).
The side frame 12 of the present embodiment is a substantially horizontal H-shaped (sectional view) flat plate member, and includes a flat plate-like front surface portion 14 and rear surface portion 16, a connecting portion 18 that connects the front and rear surface portions, and a planar member 20. (See FIG. 2). In this embodiment, the side frame 12 can be formed by the molding apparatus 30 (described later). At this time, the side frame 12 is made of a thermoplastic resin (polyamide (which can contain glass or carbon fiber or other reinforcing materials), polypropylene, polyethylene, vinyl chloride resin, etc.) or a thermosetting resin (epoxy resin, phenol resin). , Unsaturated polyester resin, melamine resin, urea resin, etc.), the side frame 12 can be reduced in weight compared to the case of metal.

[Surface member]
The planar member 20 is a long belt-like member (made of resin) and can have a plurality of continuous fibers or long fibers (not shown) (see FIG. 2).
In the present embodiment, a plurality of fibers are arranged in the longitudinal direction (one direction) of the planar member 20. And the rigidity of the side frame 12 can be improved by arrange | positioning the planar member 20 along the front surface part 14 and the rear surface part 16 of the side frame 12, respectively.
For example, a bending stress is applied in a direction of warping with respect to the standing side frame 12 due to an impact at the time of a vehicle collision or the like. At this time, the deformation of the side frame 12 can be prevented as much as possible by increasing the rigidity of the side frame 12 by the planar member 20 and resisting bending stress.

The material (resin) of the planar member 20 is not particularly limited, and examples thereof include polyamide (nylon), polypropylene, polyethylene, polyester, polystyrene, polyimide, polyvinyl alcohol, polyvinyl chloride, and cellulose. Here, by forming the planar member 20 and the side frame 12 with a material excellent in compatibility (adhesiveness) (typically the same material), the planar member 20 and the side frame 12 can be suitably integrated in a molding process described later. The thickness dimension of the planar member 20 is not particularly limited, but can be set to 0.1 to 5 mm, for example.
Examples of continuous fibers and long fibers include carbon fibers, glass fibers, boron fibers, aramid fibers, silicon carbide fibers, alumina fibers, metal fibers, and composite fibers thereof. The planar member 20 preferably has continuous fibers, and the length of the planar member 20 is not particularly limited when it has long fibers, but the longer the better, the better. The thickness of the long fibers (fiber diameter) is not particularly limited, but is typically 50 μm or less, and preferably 1 μm to 15 μm. The content ratio of the long fibers relative to the planar member 20 (resin) is not particularly limited, but is typically 10% to 90% by weight.

[Molding equipment]
The molding apparatus 30 includes a first mold 31 (arrangement part 38), a second mold 32, a cavity 34, a heating mechanism 36, and a holding mechanism (first mechanism 41, second mechanisms 42a to 42d) ( (See FIGS. 3-6).
In the present embodiment, the first mechanism 41 temporarily fixes the planar member 20 to the arrangement site 38 and then blows hot air from the heating mechanism 36. At this time, the planar member 20 is more reliably held at the arrangement site 38 by the second mechanisms 42a to 42d so that the planar member 20 does not move (for example, does not roll up). Then, the side frame 12 (molded product) is suitably molded while the planar member 20 is more securely held at the arrangement site 38 by a molding method described later.

(First type (location))
The first mold 31 is a substantially rectangular (sectional view) mold member, and has a recessed portion 31a, a nesting portion 31b, an arrangement site 38, and a configuration (first mechanism, second mechanism) described later (FIG. 3).
The recessed portion 31a is a substantially rectangular (cross-sectional view) recessed portion, and can be provided on the upper surface of the first mold 31 (surface that can be closed by the second mold 32). Further, the nesting portion 31b is a member having a convex shape (a flat surface portion) at the center, and is disposed on the bottom surface of the recessed portion 31a so that a second mechanism (described later) can be disposed.
And the arrangement | positioning site | part 38 is provided in the side surface (substantially perpendicular flat surface which faces a cavity (after-mentioned)) of the recessed part position 31a, and has an area which can arrange | position the planar member 20. FIG.

(Second type)
The second mold 32 is a substantially rectangular (cross-sectional view) mold member that can be closed to the first mold 31, and includes a convex portion 32a, an injection portion 32b, and a configuration described later (a heating mechanism, a second mechanism). (See FIGS. 3 and 4).
The convex portion 32a is a convex portion having a substantially rectangular shape (sectional view), and can be provided at the center of the lower surface of the second mold 32 (position facing the concave portion 31a). The convex portion 32a is narrower than the concave portion 31a and can be inserted into the concave portion 31a with a predetermined interval (forming the cavity 34).
The injection part 32b is a hole that penetrates the upper surface and the lower surface of the second mold 32, and can inject the molding material X into the cavity 34 (described later) (see FIG. 6B). The injection part 32b is typically circular (sectional view), and is tightened in the middle so that the lower surface (gate) has a small diameter.

(cavity)
The cavity 34 is a molding space formed between the first mold 31 and the second mold 32, and has a shape (substantially H-shaped in cross-sectional view) that follows the outer shape of the side frame 12 (see FIG. 5 and FIG. 5). (See FIG. 6).
In the cavity 34 of the present embodiment, the space between the side surface of the concave portion 31a (arrangement portion 38) and the side surface of the convex portion 32a becomes a molding space for the front surface portion 14 and the rear surface portion 16 of the side frame 12 (see FIG. 2). reference). And the space part between the upper surface center of the nest | insert part 31b and the convex part 32a lower surface becomes the shaping | molding space of the connection part 18 (part which connects the front surface part 14 and the rear surface part 16).

(Heating mechanism)
The heating mechanism 36 is a part capable of heating the planar member 20, and can blow hot air into the cavity 34 (see FIGS. 4 and 6).
The heating mechanism 36 of the present embodiment has a supply part 36 a, a passage part 36 b, and an opening / closing part 36 c and can be provided in the second mold 32. The supply unit 36 a is a pump member that can supply and discharge hot air and can be disposed outside the second mold 32.
The passage portion 36b is a passage (branched shape) in the second mold 32 and can communicate the cavity 34 and the supply portion 36a. In the present embodiment, the outlet (substantially triangular pyramid) of the passage portion 36b opens to the side surface of the convex portion 32a, and the passage portion 36b portion toward the outlet extends substantially horizontally to be linear.
The opening / closing part 36c is a rod-shaped part (one end is substantially a triangular pyramid), and can open and close the outlet (opening on the cavity side) of the passage part 36b.

In the present embodiment, the opening / closing portion 36c is inserted into the passage portion 36b (linear portion) so as to be able to advance and retreat, and one end side thereof is disposed so as to be fitted into the outlet of the passage portion 36b. And by making the opening-and-closing part 36c (one end) protrude from an exit by the mechanism inside the 2nd type | mold 32, the channel | path part 36b (exit) can be open | released. Further, the passage portion 36b (outlet) can be closed by fitting the opening / closing portion 36c (one end) into the outlet while pulling the opening / closing portion 36c back to the second mold 32 side.
Although the temperature of the hot air is not particularly limited, it is desirable that the temperature difference is not so high that the temperature difference between the planar member 20 and the molding material X (molten resin) is not extremely high (see FIG. 6B). For example, the temperature of the hot air can be set to the same temperature as the molding material X.

[Holding mechanism (first mechanism)]
The first mechanism 41 is a mechanism capable of temporarily fixing the planar member 20 to the arrangement site 38 and can be provided in the first mold 31 (see FIGS. 3, 5, and 6).
As the first mechanism 41, a suction mechanism (a mechanism for temporarily fixing the planar member 20 by vacuum suction), an adhesion mechanism (a mechanism for temporarily fixing the planar member 20 with an adhesive), a magnetic mechanism (a planar member 20 with a magnet or the like). Can be illustrated.
The first mechanism 41 (suction mechanism) of the present embodiment includes a suction passage portion 41a, a decompression portion 41b, and an opening portion 41c. The suction passage portion 41a is a passage (branched shape) in the first mold 31, and communicates the cavity 34 and the decompression portion 41b. Moreover, the pressure reduction part 41b is a pump member outside the first mold 31, and communicates with the suction passage part 41a via a valve member.
And the opening part 41c is an exit (opening) of the suction passage part 41a, and is formed in the recessed part position 31a side surface (arrangement site | part 38). In the present embodiment, a plurality of openings 41c can be formed at appropriate intervals in the arrangement site 38, and can be arranged so as to face each of the planar members 20 (in each figure, for convenience, only one opening is provided). Sign).

(Second mechanism)
The second mechanism (42a to 42d) is a mechanism capable of physically pressing the planar member 20 toward the arrangement portion 38, and can be disposed on the first mold 31 and the second mold 32, respectively (FIG. 3, FIG. 5 and FIG. 6).
The second mechanism (42a to 42d) of the present embodiment includes a base B and a plurality or a single pressing portion P. The base portion B is a flat plate portion provided in each mold, and can be moved back and forth with respect to the cavity 34 by a drive portion (not shown). The pressing portion P is a pin-shaped portion extending toward the cavity 34 and is erected from the base B.
Here, the arrangement position of the second mechanism (42a to 42d) is not particularly limited, but all or a part of the pressing portion P of the mechanism is arranged closer to the end of the planar member 20 than the first mechanism 41. Is desirable. Then, by physically holding the end portion side of the planar member 20 by the second mechanism (42a to 42d), it is possible to suitably prevent the positional deviation (particularly, rising) of the planar member 20 due to hot air.

In the present embodiment, the first mold 31 (second mold 32) can be provided with a pair of second mechanisms 42a and 42b (42c and 42d).
For example, second mechanisms 42 a and 42 b including a plurality of pressing portions P are disposed on the second mold 32. At this time, a plurality of passages (reference numerals omitted) extending from the storage part SM to the side surface of the convex part 32a (surface facing the arrangement part 38) are provided while forming the space part (storage part SM) inside the second mold 32. A plurality of pressing portions P (pins) are inserted into the passages while the base B is arranged in the storage portion SM so that the drive portion can advance and retreat. By doing so, the plurality of pressing portions P can be advanced and retracted in and out of the cavity 34 as the base portion B is advanced and retracted.
Similarly, the first mold 31 is provided with second mechanisms 42c and 42d having a single pressing portion P. At this time, a single passage (reference number omitted) extending from the storage portion SM to the side surface of the insert portion 31b (a surface facing the arrangement portion 38) is provided while forming the storage portion SM inside the insert portion 31b. Then, a single pressing portion P (pin shape) is inserted into the passage while the base portion B is arranged in the storage portion SM so that the drive portion can advance and retreat.

[Side frame molding work]
In this embodiment, the side frame 12 (molded product) is molded in the cavity 34 and integrated with the planar member 20 (see FIGS. 3 and 6). At this time, by sequentially performing the following first to third steps, the molded product was suitably molded while more securely holding the planar member 20 at the arrangement site 38.

(First step)
In the first step, the pair of planar members 20 (band-like shapes) are respectively arranged in the arrangement portions 38 with the first die 31 and the second die 32 opened (see FIG. 3). Next, the planar member 20 is temporarily fastened to the arrangement site 38 by suction by the first mechanism 41 (see FIG. 6A).
By doing so, the planar member 20 can be held in the arrangement site 38 until at least the first mold 31 and the second mold 32 are closed.
The suction force (degree of decompression) of the first mechanism 41 can be set as appropriate according to the configuration (material, thickness, weight, etc.) of the planar member 20, and the planar member 20 does not fall off from the arrangement site 38. There is no particular limitation.

(Second step)
In the second step, after the first mold 31 and the second mold 32 are closed, hot air is blown onto the planar member 20 while pressing the planar member 20 against the arrangement site 38 by the second mechanisms 42a to 42d (FIG. 6 (a)).
In the present embodiment, the second mechanisms 42 a and 42 b are operated to cause the plurality of pressing portions P to protrude from the second mold 32 and press against the other side of the planar member 20 (pressing to the arrangement portion 38). Further, the second mechanisms 42c and 42d are actuated so that the single pressing portion P protrudes from the nesting portion 31b and is pressed against one side of the planar member 20 (pressed against the arrangement portion 38).
In this state, the heating mechanism 36 is operated to send hot air into the cavity 34, thereby heating the planar member 20. At this time, in the present embodiment, the planar member 20 is physically pressed against the arrangement site 38 by the second mechanisms 42a to 42d, so that the planar member 20 is stable to the arrangement site 38 against the pressure of hot air. Can be retained. Moreover, the planar member 20 can be heated in a relatively short time by blowing hot air.

(Third process)
In the third step, after the suction of the first mechanism 41 is stopped, the molding material X is injected into the cavity 34 and integrated with the planar member 20 while molding the side frame 12 (FIG. 6B). See).
In this manner, in the third step, by stopping the suction of the first mechanism 41, it is possible to prevent the molding material X (molten resin) from being sucked by the first mechanism 41 as much as possible. Here, the suction of the first mechanism 41 may be stopped before the injection of the molding material X, and can be stopped before and after the blowing of hot air, or can be stopped during the blowing of hot air.
In this embodiment, the side frame 12 is molded while injecting the molding material X into the cavity 34 from the injection portion 32b. At this time, by heating the planar member 20, it can be suitably integrated with the side frame 12.
Although the injection timing of the molding material X is not particularly limited, the temperature drop of the planar member 20 can be suitably prevented by injecting the molding material X immediately after stopping the blowing of hot air.

Then, the holding by the second mechanisms 42a to 42d (holding mechanism) is stopped, and the side frame 12 is taken out from the cavity 34 together with the planar member 20 (see FIGS. 6B and 6C).
At this time, the holding (pressing) by the second mechanisms 42 a to 42 d can be stopped after the molding material X is cured, but it is preferable to stop the molding mechanism X before the molding material X is cured.
For example, in the present embodiment, before the molding material X is cured, the pressing portion P (pin shape) is housed in the nest portion 31b and the second mold 32, respectively, and the holding by the second mechanisms 42a to 42d is stopped. Then, the molding material X is hardened while flowing into the space after the pressing portion P is moved, thereby preventing the side frame 12 from forming a hole (a hole corresponding to the arrangement position of the pressing portion P) as much as possible. it can.

As described above, in the present embodiment, the planar member 20 can be more reliably held at the arrangement site 38 by the first mechanism 41 and the second mechanisms 42a to 42d.
Further, in this embodiment, in the second step, the planar member 20 is held at the arrangement site 38 by the second mechanisms 42a to 42d, so that the positional deviation of the planar member 20 due to the blowing of hot air can be prevented as much as possible. In the third step, by stopping the suction of the first mechanism 41, it is possible to prevent the molding material X from being sucked by the first mechanism 41 as much as possible.

The molding apparatus of the present embodiment is not limited to the above-described embodiments, and can take other various embodiments.
(1) In the present embodiment, the configuration (structure, arrangement position, number of arrangements, etc.) of the first mechanism 41 is exemplified, but the configuration of the mechanism is not intended to be limited. The configuration of the first mechanism can be changed as appropriate according to the configuration of the molding apparatus.
(2) Moreover, in this embodiment, although the structure (structure, arrangement | positioning position, the number of arrangement | positioning etc.) of 2nd mechanism 42a-42d was illustrated, it is not the meaning which limits the structure of the same mechanism. For example, a plurality of or a plurality of second mechanisms can be disposed in at least one of the first mold and the second mold. The pressing portion can take various shapes in addition to the pin shape, and the number of arrangements can be changed as appropriate. Moreover, the arrangement | positioning position of a 2nd mechanism can also be arrange | positioned in the position which faces the center of a planar member other than the position which faces the edge part of a planar member.

(3) Moreover, in this embodiment, although the structure of the 1st type | mold 31 and the 2nd type | mold 32 was illustrated, it is not the meaning which limits the structure of these types | molds. For example, a convex part can be provided in the first mold and a concave part can be provided in the second mold. In addition, the first mold and the second mold may be relatively movable up and down, or may be relatively movable in the horizontal direction.
(4) In this embodiment, the configuration of the arrangement part (shape, formation position, number of formations, etc.) is exemplified, but the configuration of the same part depends on the arrangement position of the planar member with respect to the side frame (molded product). Can be changed as appropriate. For example, the shape of the arrangement location can be appropriately changed according to the shape of the molded product, and can be flat (horizontal, vertical, inclined), zigzag or curved.

(5) Moreover, in this embodiment, although the structure (shape, the number of arrangement | positioning, etc.) of a planar member was illustrated, it is not the meaning which limits the structure of the same member. For example, the planar member can take various shapes such as a strip shape and a sheet shape, and can be attached to the side frame (molded product) by a plurality or a single number. Further, the planar member can be used not only for reinforcing the molded product but also for improving the design of the molded product.
(6) In the present embodiment, the side frame 12 has been described as an example of a molded product, but the type of the molded product is not limited. For example, examples of the molded product include frame members and vehicle constituent members of various seat constituent members such as a seat cushion and a headrest.

(7) In the present embodiment, the configuration of the molding method is illustrated, but the configuration of the method is not intended to be limited. For example, in the third step, the suction of the first mechanism can be maintained.

2 Vehicle Seat 4 Seat Cushion 6 Seat Back 6F Frame Member 10 Upper Frame 12 Side Frame 20 Planar Member 30 Molding Device 31 First Mold 32 Second Mold 34 Cavity 36 Heating Mechanism 38 Arrangement Site 41 First Mechanism 41a Suction Passage part 41b Decompression part 41c Opening part 42a-42d 2nd mechanism P Pressing part B Base

Claims (2)

A first mold; a second mold that can be closed to the first mold; a cavity formed between the first mold and the second mold; and an inner surface of the first mold that faces the cavity. An arrangement site, and a holding mechanism capable of holding a state in which the planar member is arranged in the arrangement site,
The planar member can be integrated with the planar member while molding a resin molded product in the cavity after being heated by blowing hot air while being held at the placement site by the holding mechanism. In the molding apparatus capable of stopping the holding by the holding mechanism and taking out the molded product from the cavity together with the planar member,
The holding mechanism is provided in the first mold and can temporarily fix the planar member to the arrangement site; and a second mechanism capable of physically pressing the planar member toward the arrangement site With a mechanism,
The first mechanism and the second mold are closed together while temporarily fixing the planar member to the placement site by the first mechanism, and then the planar member is placed on the placement site by the second mechanism. A molding apparatus having a configuration capable of holding the planar member at the arrangement site against the pressure of hot air by pressing. In the molding method of the molded article using the molding apparatus according to claim 1,
A first step of temporarily fixing the planar member to the arrangement site by suction by the first mechanism;
After closing the first mold and the second mold, in the second mechanism, a second step of blowing hot air while pressing the planar member against the arrangement site;
And a third step of injecting a molding material into the cavity and then integrating the molding into the planar member after the suction of the first mechanism is stopped.

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