JP2014166708A - Molding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out smooth form removal of an undercut-shaped molding.SOLUTION: In a molding apparatus 20, molding surfaces (FS2, FS3) have concave interference parts (IF1, IF2) which are arranged in the downstream of a molding 6P in the form removal direction and directed toward the inside of one mold, and relative motion of the molding 6P in the form removal direction is regulated by the interference of the interference parts (IF1, IF2) with parts of the molding (11a, 12a) molded in the interference part (IF1, IF2). In the interference parts (IF1, IF2), there are provided blowout parts (31a, 33a) capable of blowing out a gas toward the molding 6P.

Description

  The present invention relates to a molding apparatus capable of molding a molded product having an undercut shape (a shape that interferes with a molding surface during demolding).

As this type of molding apparatus, a molding apparatus capable of molding a seat pad (an example of a molded product) of a vehicle seat is known (see Patent Document 1).
Here, the seat pad is a member (made of foamed resin) that elastically supports the occupant and has a groove portion extending in the front-rear direction of the seating surface. Then, the seat pad is covered with a seat cover while being hooked on a seat frame (a frame-shaped member forming a seat skeleton). At this time, a part of the seat cover can be suspended from the groove on the seat pad seating side.

And the above-mentioned shaping | molding apparatus has an upper mold | type, a lower mold | type, the cavity (molding space) formed between both mold | types, and a blowing part.
The blow-out part has a plurality of slits provided on the molding surface of the lower mold (a part facing the seating side of the seat pad) and an air box. The air box is a hollow box body through which air can flow, and is provided inside the lower mold and communicates with each slit.
In the known technique, while forming the seat pad in the cavity, the convex portion (a flat plate member following the outer shape of the groove portion) is projected from the slit of the lower mold to form the groove portion. Next, after opening the lower mold and the upper mold, the sheet pad attached to the lower mold is removed while being pulled upward. At this time, the convex portion is housed in the air box, and air is blown out from the air box toward the slit (seat pad seating side). In this way, it is possible to smoothly remove the mold by separating the seat pad side from the molding surface of the lower mold with air.

By the way, in the above-mentioned seat pad, the end portion side may be bent or folded, and may be latched to the seat frame. At this time, the end portion of the seat pad can be stably locked to the seat frame by inclining gradually toward the inside toward the end side (with an undercut shape).
Then, in order to form this type of seat pad, for example, the molding surface of the lower mold is gradually tapered so as to follow the end of the seat pad while being bent or the like (concave inward). It will be.

Registered Utility Model No. 2588423

By the way, in the configuration of the known technique, the seat pad attached to the lower mold is removed while being pulled upward. Then, the end portion of the seat pad is moved upward along the molding surface (bent portion or the like) of the lower mold. At this time, the end portion (undercut portion) of the seat pad interferes with the concave portion of the molding surface. In some cases, the mold could not be removed smoothly.
However, the seat pad can be forcibly peeled off (forcibly removed) from the molding surface, but doing so will damage the end of the seat pad and lead to a decrease in quality.
The present invention has been devised in view of the above points, and a problem to be solved by the present invention is to smoothly demold an undercut molded product.

As means for solving the above problems, the molding apparatus of the first invention has a plurality of molds and a cavity formed between the plurality of molds in the mold closed state.
In the present invention, after molding a molded product in the cavity, a plurality of molds are opened, and a molded product attached to any one of the plurality of molds is relatively moved along the molding surface of the one mold. Demold while moving.
At this time, the above-mentioned molding surface has a concave interference part which is arranged on the downstream side in the mold releasing direction of the molded product and is directed toward the inside of one mold. For this reason, the relative movement of the molded product in the demolding direction is restricted by the interference between the interference portion and the molded product portion (undercut portion) molded at the interference portion.
In this type of configuration, it is desirable that the undercut shaped product can be smoothly removed. Therefore, in the present invention, the interference part is provided with a blowing part capable of blowing gas toward the molded product. In the present invention, the molded product (undercut portion) is peeled off from the interference portion with gas, so that the molded product can be removed smoothly.

A molding apparatus according to a second aspect is the molding apparatus according to the first aspect, wherein one mold has another blowing part different from the blowing part of the interference part, and the other blowing part is removed from the interference part. It is arranged on the molding surface upstream in the mold direction.
In the present invention, a wide range of the molded product can be peeled off from the molding surface by the plurality of blowing portions (the molded product can be more smoothly demolded).

A molding apparatus according to a third aspect of the present invention is the molding apparatus according to the first or second aspect, wherein the first mold, the second mold that can be closed to the first mold, and the first mold and the second mold are disposed. It has an intermediate mold as one mold and a gas supply device. Then, the intermediate mold is attached to one of the first mold and the second mold so as to be relatively movable via a drive device that can be driven by supplying gas.
In the present invention, the above-described gas supply device is configured to be able to supply gas to both the drive device and the blow-out unit (combined configuration), so that an increase in the number of parts of the molding device can be avoided (simple device configuration). It is a structure that contributes to

  According to the first aspect of the present invention, an undercut molded product can be removed smoothly. According to the second invention, the molded product can be removed more smoothly. According to the third aspect of the invention, the molded product can be smoothly demolded with a relatively simple configuration.

It is a perspective view of a vehicle seat. It is a perspective view of a seat pad. It is sectional drawing of a shaping | molding apparatus, (a) is a figure of a mold open state, (b) is a figure of a mold closed state. It is sectional drawing of a shaping | molding apparatus, (a) is a figure of the mold open state after shaping | molding, (b) is a figure of the mold open state at the time of blowing part operation | movement. It is sectional drawing of a shaping | molding apparatus, (a) is a figure at the time of demolding of a 1st end part, (b) is a figure at the time of demolding of a 2nd end part.

Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In each drawing, reference numeral F is attached to the front of each member, reference numeral B is attached to the rear of each member, reference sign UP is provided above each member, and reference sign DW is provided below each member.
The vehicle seat 2 shown in FIG. 1 has a seat component (seat cushion 4, seat back 6, headrest 8). Each of these seat constituent members includes a seat frame (4F, 6F, 8F) forming a seat skeleton, a seat pad (4P, 6P, 8P) forming a seat outer shape, and a seat cover (4S, 6S, 8S).

[Seatback (Seatpad)]
The seat back 6 is a member that is connected to the seat cushion 4 in a tiltable manner, and includes a seat frame 6F (substantially rectangular frame), a seat cover 6S (surface material such as fabric or leather), and a seat pad 6P. .
The seat pad 6P (an example of a molded product) is a member that can elastically support an occupant and can be formed of a foamed resin such as polyurethane foam (see FIG. 2). The seat pad 6P is a substantially rectangular member in a front view and has a first end portion 11 and a second end portion 12 (details will be described later).
In this embodiment, the seat pad 6P is disposed on the seat frame 6F and then covered with the seat cover 6S. At this time, the seat pad 6P can be disposed on the seat frame 6F by latching the end portions 11 and 12 on the upper and lower sides of the seat frame 6F with the seat back standing up as a reference.

(Undercut shape)
The first end portion 11 is a bent portion on the lower side of the seat pad 6P, and is bent from the seating surface side toward the rear of the seat (see FIGS. 2 and 4). The first end portion 11 of this embodiment is inclined upward (undercut shape) gradually toward the end side (first end portion 11a) with the seat back standing up as a reference.
Further, the second end portion 12 is a folded portion on the upper side of the seat pad 6P, and is curved downward from the seating side toward the rear of the seat and then extended downward (while facing the back side of the seat pad). And in the 2nd end part 12 of a present Example, the terminal side (2nd terminal part 12a) inclines with a steep angle toward the back surface of the seat pad 6P (it is set as an undercut shape).

In this embodiment, the seat pad 6P is molded by a molding device 20 (first mold 21, second mold 22, intermediate mold 23) described later (see FIGS. 3 to 5).
Here, the molding surfaces of the molds 21, 22, and 23 have shapes corresponding to the surface shape of the seat pad 6P. Then, in order to mold the first end portion 11 and the second end portion 12 (undercut portion), the molding surface of the intermediate mold 23 (one mold) is partially concaved inward (interference described later). Part IF1 and IF2 are formed).
Then, the molded seat pad 6 </ b> P is moved along the molding surface of the intermediate mold 23 and removed from the molding apparatus 20. At this time, it is desirable that the seat pad 6P can be removed smoothly without causing as much interference as possible with the molding surface (interference portions IF1, IF2) of the intermediate mold 23.
Therefore, in this example, the molded product was smoothly removed from the undercut seat pad 6P with the configuration described later. Hereinafter, each component will be described in detail.

[Molding equipment]
The molding apparatus 20 includes a first mold 21, a second mold 22, an intermediate mold 23, a cavity 24, a driving device 40, and a gas supply device 44 (see FIGS. 3 to 5, each member and the like). Details will be described later).
In the present embodiment, the first mold 21 is fixed to the floor or the like, and one end of the second mold 22 is attached to the first mold 21 via a hinge mechanism (not shown). The intermediate mold 23 is attached to the second mold 22 via the drive device 40 so as to be movable relative to the second mold 22.
The molding apparatus 20 is displaceable between the mold closed state and the mold open state by the rotation of the second mold 22 via the hinge mechanism (rotation center). In the molding apparatus 20 in the mold closed state, the second mold 22 is brought into a closed state with respect to the first mold 21, and a cavity 24 (molding space following the outer shape of the seat pad) is formed therebetween. Further, in the molding apparatus 20 in the mold open state, the other end side of the second mold 22 rotates upward with the hinge mechanism as the center of rotation, so that the inside of the second mold 22 (intermediate mold 23) is placed on the operator (not shown). ) Exposed to face.

(First type)
The first mold 21 is a substantially rectangular mold material (relatively large), and has a molding recess 21a (see FIG. 3A). The molding concave portion 21a is a concave portion (substantially trapezoidal in a cross-sectional view) at the center of the first mold 21, and is gradually narrowed toward the bottom surface side.
The molding surface (not shown) of the first mold 21 has a shape that follows the seating side of the seat pad 6P, and is formed on the bottom surface of the molding recess 21a (see FIGS. 3A and 4). . In the center of the molding surface, a protruding portion 21b (substantially rectangular shape) extending in the seat width direction is provided, and a groove portion for retracting the seat cover can be formed on the seat pad 6P (sitting side).

(Second type)
The second mold 22 is a substantially rectangular mold material (relatively small size), and has a molding convex part 22a, a fitting concave part 22b (notched concave part 22c), and a plurality of through holes H1 and H2 (FIG. 3A). )).
The molding convex portion 22a is a convex portion (substantially trapezoidal in a side view) at the center of the second mold 22, and can be fitted into the molding concave portion 21a.
The fitting recess 22b is a part for fitting an intermediate mold 23 (described later). The insertion recess 22b of the present embodiment is a recessed portion (substantially trapezoidal in cross-sectional view) of the molding protrusion 22a, and is gradually narrowed toward the bottom surface side. Then, the side wall on one side of the fitting recess 22b is notched in a step shape (a notch recess 22c is formed), and the intermediate mold 23 can be partially exposed.
The first through hole H1 is a through hole (relatively large in diameter) on the bottom surface of the fitting recess 22b, and a drive device 40 (described later) can be inserted in a relatively movable manner. The second through hole H2 is a through hole (with a relatively small diameter) on the bottom surface of the fitting recess 22b adjacent to the first through hole H1, and a supply pipe 42 (described later) can be inserted therein.
The molding surface (reference numeral omitted) of the second mold 22 has a shape that follows the rear surface, upper surface, and lower surface side of the seat pad 6P, and is formed in the molding convex portion 22a (upper side) and the notch portion 22c. (See FIG. 4).

(Intermediate type)
The intermediate mold 23 is a substantially horizontal L-shaped mold material, and includes an extended portion 23a, an exposed portion 23b, and configurations described later (molding surfaces FS1 to FS3, interference portions IF1 and IF2, blowout portions 31a to 36a, and the like, flow paths Part 37) (see FIG. 3A).
The intermediate mold 23 (main body) is a substantially trapezoidal (sectional view) mold material, and is gradually narrowed toward one surface facing the second mold 22. The extension part 23 a is a flat part formed by extending the other surface (wide part) of the intermediate mold 23, and protrudes from the intermediate mold 23 in a bowl shape.

At the time of molding (when the mold is closed), the first mold 21 and the second mold 22 are closed while the intermediate mold 23 (extension part 23a) is inserted into the fitting recess 22b (FIG. 3 and FIG. 3). (See FIG. 4).
At this time, by providing a predetermined clearance between the other surface of the intermediate mold 23 (upper surface of the extension part 23a) and the first mold 21, a part of the cavity 24 (a molding space in which the seat pad main body can be molded) can be formed.
Further, a part of the side surface of the intermediate mold 23 (main body) is partially exposed from the fitting recess 22b (notch recess 22c) (exposed portion 23b is formed). By providing a predetermined clearance between the exposed portion 23b and the notch recess 22c, a part of the cavity 24 (a molding space in which the first end portion can be molded) can be formed.
Then, by providing a predetermined clearance between the lower surface of the extended portion 23a and the molding convex portion 22a, a part of the cavity 24 (a molding space in which the second end portion can be molded) can be formed.

(Molding surface / interference part)
In the intermediate mold 23 of the present embodiment, the first molding surface FS1 to the third molding surface FS3 are formed around the intermediate mold 23 with shapes that follow the back side of the seat pad 6P (FIG. 3A). )).
The first molding surface FS1 is formed along the intermediate mold 23 (the wide other surface side) and the extension portion 23a, and has a shape that follows the shape of the back surface of the seat pad 6P (main body) (FIG. 3A). And see FIG.
The second molding surface FS <b> 2 is formed along the exposed portion 23 b (one side of the intermediate mold 23), and has a shape that follows the back surface shape of the first end portion 11. The second molding surface FS <b> 2 of the present embodiment is gradually inclined toward the inner side of the intermediate mold 23 toward the second mold 22. A first interference part IF1 having a shape following the first end part 11a is formed at the end of the second molding surface FS2 and is located most inside the intermediate mold 23 (concave).
The third molding surface FS3 is formed along the lower surface of the extended portion 23a, and has a shape that follows the shape of the back surface of the second end portion 12. The third molding surface FS3 of the present embodiment has a substantially trapezoidal shape, and the center is substantially flat. Then, the third molding surface FS3 is inclined (concave) toward the inside of the intermediate die 23 in the vicinity of the intermediate die 23, and the second interference portion IF2 having a shape following the second end portion 12a is formed. .

(Multiple outlets)
The plurality of blowing parts (first blowing part 31a to sixth blowing part 36a and the like) are parts that can blow gas (air, gas, etc.) toward the seat pad 6P, respectively (see FIG. 3).
In the present embodiment, a plurality of blowing portions are provided in the intermediate mold 23 and communicated with a gas supply device 44 described later via the flow path portion 37 (the arrangement position of the blowing portions will be described later). By providing a regulator in the middle of the gas flow path, the gas pressure can be controlled according to the product shape.
Here, the flow path portion 37 is a passage through which gas can pass, and extends in a substantially T shape (in cross-sectional view) inside the intermediate mold 23. One end of the flow path portion 37 opens to the bottom surface side of the intermediate mold 23 and communicates with a gas supply device 44 (described later). Moreover, the other end of the flow path part 37 extends into the intermediate mold 23 (extension part 23a) and communicates with each of the plurality of blowing parts.
In addition, although the opening dimension of each blowing part is not specifically limited, the opening dimension of the blowing parts (the first blowing part 31a and the third blowing part 33a) provided in each of the above-described interference parts IF1 and IF2 is the opening of another blowing part. It is desirable to set it smaller than the dimension. By doing so, it is possible to increase the gas blowing pressure in each of the interference portions IF1 and IF2 and promote the peeling of the seat pad 6P.

(Arrangement position of blowing part)
In the present embodiment, the first blowing portion 31a and the second blowing portion 32a are respectively provided on the second molding surface FS2 (see FIGS. 3A and 4B).
At this time, the first blowing portion 31a is provided in the first interference portion IF1 so that gas can be blown toward the first end portion 11a. Moreover, the 2nd blowing part 32a is provided in the 1st shaping | molding surface FS1 side (after-mentioned mold release direction D1 upstream) rather than 1st interference part IF1.
Furthermore, in the present embodiment, it is desirable to provide a plurality of first blowing portions 31a to 31c (same configuration) and a plurality of second blowing portions 32a to 32c (same configuration), respectively, in parallel in the sheet width direction ( (See FIG. 2). For example, gas is blown to the both sides and the center of the first end portion 11a (substantially uniformly) by the first blowing portions 31a to 31c, for example. At this time, the first end portion 11a can be peeled off with high quality by blowing the gas to both sides of the first end portion 11a (parts that are relatively easily damaged) at the first blowing portions 31a and 31c.

Moreover, the 3rd blowing part 33a-the 6th blowing part 36a are each provided in the 3rd molding surface FS3 (refer Fig.3 (a) and FIG.4 (b)).
At this time, the third blowing portion 33a is provided in the second interference portion IF2 so that gas can be blown toward the second end portion 12a. Moreover, the 4th blowing part 34a-the 6th blowing part 36a are provided in parallel with the 1st shaping | molding surface FS1 side (after-mentioned mold release direction D2 upstream) rather than 1st interference part IF1 in this order.
Further, in the present embodiment, for example, a plurality of third blowing portions 33a to 31c (same configuration) and a plurality of fourth blowing portions 34a to 34c (same configuration) are provided in parallel in the sheet width direction. Desirable (in FIG. 2, only a part of the blowout portions are shown for convenience) Then, the second end portion 12a can be peeled off with high quality by blowing the gas to both sides (parts relatively easily damaged) of the second end portion 12a at the third blowing portions 33a and 33c.

(Drive device / Gas supply device)
The drive device 40 is a device that moves the intermediate mold 23 relative to the second mold 22 (see FIG. 3). The drive device 40 of this embodiment is a cylindrical (cylinder-shaped) member and has a mechanism that can be extended or shortened by supplying gas.
The gas supply device 44 is a member that supplies gas to the drive device 40, and has a flexible supply tube 42 (tube shape). The supply pipe 42 is branched in the middle, and has a first pipe part 42a and a second pipe part 42b.

In the present embodiment, the driving device 40 is attached to the bottom surface side of the intermediate die 23 while being inserted into the second die 22 (first through hole H1) so as to be relatively movable. Next, the drive device 40 is communicated with the gas supply device 44 via the supply pipe 42 (first pipe portion 42a).
Then, by driving the driving device 40 with the gas of the gas supply device 44, the intermediate mold 23 is moved relative to the second mold 22. In this way, the intermediate mold 23 can be displaced between a state in which the intermediate mold 23 moves toward the second mold 22 and is fitted in the fitting recess 22 b and a state in which the intermediate mold 23 is spaced from the second mold 22.
Further, the supply pipe 42 (second pipe portion 42b) communicates with the flow path portion 37 while being routed from the first through hole H1 to the second mold 22 side (inside the fitting recess 22b). And the gas of the gas supply apparatus 44 can be blown out from each blowing part by connecting the gas supply apparatus 44 and the flow-path part 37 via the 2nd pipe part 42b.

[Seat pad molding method]
Referring to FIG. 3, after the molding apparatus 20 is closed, the molding material M in the cavity 24 is foam-molded to mold the seat pad 6 </ b> P.
Next, referring to FIGS. 4 and 5, with the molding apparatus 20 in the mold open state, the seat pad 6 </ b> P attached to the intermediate mold 23 is removed while being relatively moved along each molding surface of the intermediate mold 23. . In this embodiment, the first end portion 11 is removed while being pulled out toward the front side of the intermediate mold 23 along the second molding surface FS2 (see the removal direction D1 in FIG. 5). Further, the second end portion 12 is removed while being pulled up above the intermediate mold 23 along the third molding surface FS3 (see the removal direction D2 in FIG. 5).
At this time, in the present embodiment, the above-described molding surfaces (FS2, FS3) each have a concave interference portion (IF1, IF2) toward the inside of the intermediate mold 23 on the downstream side in the mold release direction. For this reason, the relative movement in the demolding direction of the first end portion 11 and the second end portion 12 is restricted by the interference between each interference portion (IF1, IF2) and the seat pad portion (11a, 12a) located there. The Rukoto.

(Removal of seat pad)
Therefore, in this embodiment, the interference portions IF1 and IF2 are provided with the blowing portions (31a and 33a) capable of blowing gas toward the seat pad 6P.
Prior to demolding of the first end portion 11, gas is blown out from the first blowout portion 31a to peel off the first end portion 11a from the first interference portion IF1 (see FIG. 4A). Further, gas is blown out from the second blowing portion 32a, and the first end portion 11 is entirely peeled off from the second molding surface FS2. In this state, the first end portion 11 can be smoothly demolded by drawing the seat pad 6P toward the front side of the intermediate mold 23 along the second molding surface FS2.
Prior to demolding of the second end portion 12, gas is blown from the third blowing portion 33a to peel off the second end portion 12a from the second interference portion IF2 (see FIG. 4A). Further, gas is blown out from the fourth blowing portion 34a to the sixth blowing portion 36a, and the second end portion 12 is entirely peeled off from the third molding surface FS3. In this state, the second end 12 can be smoothly demolded by pulling up the seat pad 6P to the upper side of the intermediate mold 23 along the third molding surface FS3.
Note that the gas blowing from each blowing section can be manually operated, and can be automatically performed (for example, in conjunction with driving of the drive unit 40).

As described above, according to the present embodiment, the first end portion 11 and the second end portion 12 (undercut portion) are peeled off from the interference portions IF1 and IF2 by gas, so that the seat pad 6P can be removed smoothly. Can be typed.
Moreover, in a present Example, the wide part of the seat pad 6P can be peeled from the intermediate mold | type 23 in another blowing part (2nd blowing part 32a, the 4th blowing part 34a-the 5th blowing part 35a) ( It can be removed more smoothly).
In this embodiment, the gas supply device 44 is configured to be able to supply gas to both the drive device 40 and each of the blowing portions 31a to 36a (common configuration). For this reason, an increase in the number of parts of the molding apparatus 20 can be avoided (this configuration contributes to simplification of the apparatus configuration).
For this reason, according to the present embodiment, the undercut seat pad 6P can be smoothly removed. As a result, in this embodiment, the work of removing the seat pad 6P is greatly simplified, and the number of work steps can be reduced. Further, it is possible to prevent the seat pad 6P from being forcibly removed as much as possible, and to prevent or reduce the breakage (breaking breakage, etc.) of the seat pad 6P at the time of releasing.

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 intermediate mold 23 is exemplified as one mold. One mold can be constituted by any one of a first mold, a second mold, and an intermediate mold, for example. The molding surface of each mold can be appropriately changed according to the shape of the molded product, and a plurality of or single interference portions are provided on one mold (either the first mold, the second mold, or the intermediate mold) to which the molded product is stuck. Is provided.
(2) In the present embodiment, the configuration of the other blowout portions (32a, 34a to 35a) is exemplified, but the configuration of the same portion (arrangement position, number of arrangements, shape, dimensions, etc.) depends on the device configuration. Can be changed as appropriate. Further, other blowout units can be omitted as appropriate according to the device configuration.
(3) Moreover, in this embodiment, the example which uses the gas supply apparatus 44 as a shared structure was demonstrated. In contrast to this, the gas supply device of the driving device and the gas supply device of the blow-out section can be separated. The driving device can be driven hydraulically or mechanically (electrically) in addition to driving with gas.

(4) In the present embodiment, the removal direction (D1, D2) of the seat pad 6P is exemplified, but the same direction can be appropriately changed according to the apparatus configuration.
(5) In the present embodiment, as an example of a molded product, the seat pad 6P of a vehicle seat (vehicle seat for vehicles, aircraft, trains, etc.) is illustrated. Examples of the molded product include seat pads for various seat constituent members, interior products for vehicles, and various molded products other than vehicles.

2 Vehicle Seat 4 Seat Cushion 6 Seat Back 8 Headrest 6S Seat Cover 6P Seat Pad 6F Seat Frame 11 First End 11a First End 12 Second End 12a Second End (Undercut)
20 Molding device 21 First mold 22 Second mold 23 Intermediate mold 23a Extension part 23b Exposed part 24 Cavities 31a to 36a Each blowout part 37 Channel part 40 Drive unit 42 Supply pipe 44 Gas supply unit FS1 to FS3 Molding surface IF1 First Interfering part IF2 Second interfering part

Claims (3)

A plurality of molds, and a cavity formed between the plurality of molds in the mold closed state,
After forming the molded product in the cavity, the plurality of molds are opened, and the molded product attached to any one of the plurality of molds is moved along the molding surface of the one mold. When demolding while moving,
The molding surface is disposed on the downstream side in the mold release direction of the molded product and has a concave interference part toward the inside of the one mold, and the relative movement in the mold release direction of the molded product is caused by the interference. In a molding apparatus configured to be regulated by interference between a part and the molded product part molded by the interference part,
The molding apparatus which provided the blowing part which can blow off gas toward the said molded article in the said interference part.   The said one type | mold has the other blowing part different from the said blowing part of the said interference part, and the said other blowing part is arrange | positioned in the said molding surface of a mold release direction upstream rather than the said interference part. Item 2. The molding apparatus according to Item 1. A first mold, a second mold that can be closed to the first mold, an intermediate mold as the one mold disposed between the first mold and the second mold, and a gas supply device; The intermediate mold is attached to any one of the first mold and the second mold so as to be relatively movable via a drive device that can be driven by supplying gas,
The molding apparatus according to claim 1, wherein the gas supply device is configured to be able to supply gas to both the driving device and the blow-out unit.

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