JP2018039159A - Die for foam molded article, and foam molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a die for forming foam molded article for molding a foam molded article in which a part of frame protrudes which is difficult to be degraded, and a foam molded article.SOLUTION: A die 30 for molding a foam molded article includes: a concave type (first die) having an insertion part 40 through which a protrusion part 93 of a frame 91 is inserted; a convex type (second die) that relatively moves relative to the concave type; and a closure wall 50. The closure wall 50 partially closes an opening part in the opening part that communicates a molding space SP and an outside configured by the insertion part 40 of the concave type. The closure wall 50 is movable in a direction along a moving direction DT of a relative movement of the convex type to the concave type, and in the opening part, at least a part other than a region AR over front and back of the protrusion part 93 of the frame 91 is closed in the movement direction DT of the convex type.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a mold for a foam molded product for molding a foam molded product having a frame, and a foam molded product.

A foam molded article having a frame is known.
The foam-molded article described in Patent Literature 1 includes a frame and a foamed resin portion made of a foamed resin. A part of the frame is embedded in the foamed resin part, and the other part of the frame protrudes from the foamed resin part. The protrusion part which protrudes from a foaming resin part in a flame | frame is used as a fastener to the structure (for example, vehicle) to which a foaming molded article is attached, for example.

  The following molding methods are known for such foam-molded products. That is, pre-expanded beads are filled into a mold by a cracking filling method, and the mold is closed after filling, and the pre-expanded beads are heated and fused to form a foam molded product. Here, the cracking filling method is a method of filling the pre-expanded beads in a state where a gap (crack) is provided between the convex mold and the concave mold. In this method, the air carrying the pre-expanded beads used at the time of filling is discharged from the gap (crack).

  In the mold using the cracking filling method, the convex mold moves relative to the concave mold. When a foam molded product having a structure in which a part of the frame protrudes from the foamed resin portion is molded with this type of mold, an insertion portion for inserting the protruding portion of the frame is provided in the concave mold. The concave insertion portion communicates the molding space formed between the concave mold and the convex mold with the outside. If the insertion part is not blocked, the pre-expanded beads in the molding space will leak to the outside. Therefore, in the technique described in Patent Document 1, this insertion part is used as a block wall (in the same document, a split mold and holding). Member). The block wall closes the insertion portion while pressing the protruding portion of the frame.

International Publication No. 2016/009820

  By the way, in the above-described technique, the projecting portion of the frame is pressed by the block wall. On the other hand, the protruding portion of the frame may be deformed due to manufacturing variations. If the shape of the projecting portion deviates from the designed shape, the pressing force concentrates on a part of the block wall when the mold is closed, and the block wall may be deteriorated.

  An object of the present invention is to provide a mold for a foam molded product for molding a foam molded product from which a part of a frame protrudes, and to provide a mold for a foam molded product that is difficult to deteriorate, and a foam molded product.

  (1) A mold for a foam-molded article that solves the above-described problem has a frame and a foamed resin portion, a part of the frame is embedded in the foamed resin portion, and the other part of the frame is separated from the foamed resin portion. A mold for a foam molded product for molding a projecting foam molded product, the first mold having an insertion portion through which a projecting portion that is a portion projecting from the foamed resin portion in the frame is inserted, and A second mold that is movable relative to the first mold and that forms a molding space between the first mold and the insertion portion of the first mold, and the molding space An opening that communicates with the outside includes a closing wall that closes a part of the opening, and the closing wall moves in a direction along a moving direction of relative movement of the second mold with respect to the first mold. In the opening, the second In the moving direction of the mold closing at least a portion other than the region over the front and rear of the projecting portion of the frame.

  According to this structure, the opening part comprised by the insertion part of a 1st metal mold | die is closed with a closing wall. And the closing wall is comprised so that at least one part other than the area | region over front and back of the protrusion part of a flame | frame may be closed by the moving direction of a 2nd metal mold | die. For this reason, the protrusion part of a flame | frame is not pressed by the closing wall. Thereby, deterioration of the metal mold | die for foam molded products which may arise when a flame | frame is pressed is suppressed.

  (2) In the mold for a foam molded product, the closing wall is provided in the second mold and biased toward the first mold. This configuration is an example of the arrangement structure of the closing wall.

  (3) In the mold for a foam molded product, the insertion portion of the first mold is between a pair of side surfaces extending along the moving direction of the second mold and the pair of side surfaces. The closing wall is biased so that the end surface of the closing wall pushes the bottom surface of the insertion portion. According to this configuration, in the predetermined movement range in which the second mold moves relative to the first mold, the end surface of the closing wall presses the bottom surface of the insertion portion, so that at least a part of the opening extends over the predetermined movement range. Closed.

  (4) In the mold for a foam molded product, the second mold has a support part that supports the closing wall so as to be movable, and is arranged so that the closing wall is sandwiched between the support parts. The pair of side surfaces are in sliding contact with the pair of side surfaces of the insertion portion. According to this configuration, there is no gap between the side surface of the insertion portion and the side surface of the support portion. For this reason, it is suppressed that the foaming resin which leaks from an opening part enters this clearance gap. Thereby, the resin flash adhering to the metal mold | die for foam molded products can be suppressed.

  (5) In the mold for a foam molded article, the support portion has a guide groove for movably guiding the closing wall, and faces the bottom surface of the insertion portion of the first mold in the support portion. The end face is provided with a guide groove end of the guide groove and an arrangement portion on which the protruding portion of the frame is arranged.

  According to this structure, the protrusion part of a flame | frame is positioned by arrange | positioning the protrusion part of a flame | frame to the arrangement | positioning part in the end surface of a support part. Compared to the case where the frame is supported only by a portion other than the protruding portion, the positional deviation of the protruding portion of the frame is suppressed.

  (6) In the above-described mold for a foam-molded product, the arrangement portion on the end surface of the support portion includes an adsorption portion that adsorbs the protruding portion of the frame. According to this structure, the position shift of the protrusion part of the flame | frame in a foamed resin part is suppressed.

  (7) In the mold for foam molded products, the first mold includes a base portion including an extended surface in which a bottom surface of the insertion portion extends, and the extended wall of the base portion includes the closing wall. A contact portion on which the end surface of the frame contacts, and an arrangement portion on which the protruding portion of the frame is disposed. According to this structure, the protrusion part of a flame | frame is positioned by arrange | positioning the protrusion part of a flame | frame to the arrangement | positioning part in the extension surface of a base part. Compared to the case where the frame is supported only by a portion other than the protruding portion, the positional deviation of the protruding portion of the frame is suppressed.

  (8) In the above-mentioned mold for a foam molded product, the extension surface of the base portion has an adsorption portion that adsorbs the protruding portion of the frame. According to this structure, the position shift of the protrusion part of the flame | frame in a foamed resin part is suppressed.

  (9) In the mold for a foam molded product, the closing wall is provided in the first mold and biased toward the second mold. This configuration is an example of the arrangement structure of the closing wall.

  (10) In the mold for foam molded products, the insertion portion of the first mold is between a pair of side surfaces extending along the moving direction of the second mold and the pair of side surfaces. And the second mold has an opposing wall facing the bottom surface of the insertion portion, and the closing wall is attached so that an end surface of the closing wall presses the opposing surface of the opposing wall. Be forced. According to this configuration, in the predetermined movement range in which the second mold moves relative to the first mold, the end surface of the closing wall presses the opposing surface of the opposing wall. Therefore, at least a part of the opening over the predetermined movement range. Is closed.

(11) In the mold for a foam molded product, the opposing wall is inserted into the insertion portion, and the pair of side surfaces of the opposing wall are in sliding contact with the pair of side surfaces of the insertion portion, respectively.
According to this configuration, when the opposing wall is inserted through the insertion portion, there is no gap between the side surface of the insertion portion and the side surface of the opposing wall. For this reason, it is suppressed that the resin which leaks from an opening part enters this clearance gap. Thereby, the resin flash adhering to the metal mold | die for foam molded products can be suppressed.

  (12) In the mold for a foam molded product, the first mold has a support portion that supports the closing wall in a movable manner, and the support portion guides the closing wall in a movable manner. And an abutting portion where the end surface of the closing wall abuts and an arrangement portion where the projecting portion of the frame is disposed. According to this structure, the protrusion part of a flame | frame is positioned by arrange | positioning the protrusion part of a flame | frame to the arrangement | positioning part in the opposing surface of an opposing wall. Compared to the case where the frame is supported only by a portion other than the protruding portion, the positional deviation of the protruding portion of the frame is suppressed.

  (13) In the mold for a foam molded product, the placement portion on the facing surface of the facing wall has a suction portion that sucks the protruding portion of the frame. According to this structure, the position shift of the protrusion part of the flame | frame in a foamed resin part is suppressed.

  (14) In the mold for a foam molded article, the first mold has a support portion that supports the closing wall so as to be movable, and the support portion includes an end surface including the bottom surface of the insertion portion; A guide groove for movably guiding the closing wall is provided, and an end surface of the support portion is provided with a guide groove end of the guide groove and an arrangement portion on which the protruding portion of the frame is disposed. According to this structure, the protrusion part of a flame | frame is positioned by arrange | positioning the protrusion part of a flame | frame to the arrangement | positioning part in the end surface of a support part. Compared to the case where the frame is supported only by a portion other than the protruding portion, the positional deviation of the protruding portion of the frame is suppressed.

  (15) In the mold for a foam molded product, the arrangement portion on the end surface of the support portion includes an adsorption portion that adsorbs the protruding portion of the frame. According to this structure, the position shift of the protrusion part of the flame | frame in a foamed resin part is suppressed.

  (16) In the foam mold product mold, the frame includes two protrusions that are arranged at a set distance and extend outward from the molding space, and the closing wall includes the two protrusions. It is arranged between. According to this structure, the part between two protrusion parts is closed with a closing wall in an opening part.

  (17) A foam molded product molded by any one of the above molds for foam molded products, comprising a frame and a foamed resin portion, wherein a part of the frame is embedded in the foamed resin portion, and the frame The other part protrudes from the said foamed resin part as a protrusion part.

  According to this structure, since the protrusion part of a flame | frame is not pressed with a closing wall, the deformation | transformation of the protrusion part of a flame | frame resulting from the press at the time of shaping | molding is suppressed. Moreover, since the protrusion part of a flame | frame is not pressed, it is suppressed that arrangement | positioning of a flame | frame shifts with respect to a foamed resin part.

  (18) In the foam molded article, the frame has two projecting portions that are arranged at a set distance apart and project from the foamed resin portion, and between the two projecting portions in the foamed resin portion, Two lines are provided, the two lines extend in a direction perpendicular to the direction in which the two protrusions are arranged, and both the two lines extend in the same direction. According to this structure, the line which exists between two protrusion parts can be used as a label | marker for pinpointing the direction of a foaming molded product.

  (19) A foam-molded article that solves the above problems includes a frame and a foamed resin portion, and the foamed resin portion includes a first surface, a second surface opposite to the first surface, and the first surface. A side surface connecting the surface and the second surface, a part of the frame is embedded in the foamed resin portion, the other part of the frame protrudes as a protruding portion from the side surface of the foamed resin portion, The projecting portion has two, and the two projecting portions are arranged apart from each other by a set distance and project from the side surface of the foamed resin portion, and around the two projecting portions on the side surface in the foamed resin portion. In the foamed resin portion, two lines are provided between the two protrusions so as to extend from each of the two protrusions. According to this structure, a line can be used as a label | marker for pinpointing the direction of a foaming molded product.

  (20) The foamed molded article includes a second line in addition to the first line as the line, and the second line passes through the end points of the two first lines. Extend. According to this structure, a line can be used as a label | marker for pinpointing the direction of a foaming molded product.

  The above-mentioned mold for foam molded products is hardly deteriorated.

Sectional drawing of the metal mold | die apparatus for foam molded products. Sectional drawing of the metal mold | die for foam molded products. The perspective view of the reference example of the metal mold | die for foam molded products. The perspective view of the metal mold | die for foam molded products which concerns on 1st Embodiment. Sectional drawing in alignment with the AA of FIG. Sectional drawing which follows the BB line of FIG. Sectional drawing of a closed wall vicinity about the metal mold | die for foam molded products which concerns on 2nd Embodiment. Sectional drawing which follows the CC line | wire of FIG. Sectional drawing of a closed wall vicinity about the metal mold | die for foam molded products which concerns on 3rd Embodiment. Sectional drawing which follows the DD line | wire of FIG. Sectional drawing of a closed wall vicinity about the metal mold | die for foam molded products which concerns on 4th Embodiment. Sectional drawing which follows the EE line | wire of FIG. The perspective view of a foaming molded product. The enlarged view near a protrusion part. Sectional drawing of the metal mold | die for foam-molded articles which concerns on other embodiment. The perspective view of a foaming molded product. The perspective view of the closure wall vicinity about the convex type of the metal mold | die for foam molded products which concerns on other embodiment.

<First Embodiment>
With reference to FIG.1 and FIG.2, an example of the mold apparatus 1 for foam molded products is demonstrated.
The mold apparatus 1 for a foam molded product molds a foam molded product 90 (see FIG. 13) having a frame 91 using pre-expanded beads as a molding material. The mold apparatus 1 for a foam molded article includes a first mold unit 10, a second mold unit 20, and a filling device 24.

  The first mold unit 10 includes a casing 11, a concave mold 12 (first mold) provided so as to seal the opening 11 a of the casing 11, and a heating / cooling device 13. The housing 11 and the concave mold 12 constitute an internal space SA. The heating / cooling device 13 is accommodated in the internal space SA. The heating / cooling device 13 is configured as a flow path for circulating steam or cooling water. The flow path is provided with an ejection hole through which steam or cooling water is ejected. The concave mold 12 is heated or cooled by steam and cooling water emitted from the ejection holes.

  The second mold unit 20 includes a casing 21, a convex mold 22 (second mold) provided so as to seal the opening 21 a of the casing 21, and a heating / cooling device 23. The housing 21 and the convex mold 22 constitute an internal space SB. The heating / cooling device 23 is accommodated in the internal space SB. The heating / cooling device 23 is configured as a flow path for circulating steam or cooling water. The flow path is provided with an ejection hole through which steam or cooling water is ejected. The convex mold 22 is heated or cooled by steam and cooling water emitted from the ejection holes.

  The convex mold 22 and the concave mold 12 are components of the mold 30 for the foam molded product. A molding space SP for molding the foam molded product 90 is formed between the convex mold 22 and the concave mold 12. Between the concave mold 12 and the convex mold 22 is provided a communication path 12d that allows the molding space SP to communicate with the outside.

  Either the convex mold 22 or the concave mold 12 or both molds are supported by the unit moving device so that one mold moves relative to the other mold. As the state of the mold 30 for the foam molded product, the mold closed state, which is a state when the foam molded product 90 is molded, and the convex mold 22 and the concave mold 12 are spaced apart from each other due to the arrangement in the mold closed state. There are a cracking state (see FIG. 2) in which a gap CL (crack) is provided and a mold opening state in which the convex mold 22 and the concave mold 12 are separated so that the frame 91 can be arranged.

  The opening end 12e on the molding space SP side in the communication passage 12d is closed by the side wall 22b of the convex mold 22 when the foam molded product mold 30 is in the mold closed state, and the foam molded product mold 30 is in the cracked state. At the time, the convex mold 22 opens due to relative movement. In the cracking state, the width (length in the short direction) of the gap CL formed by the opening end 12e on the molding space SP side in the communication passage 12d is set to a length that prevents the pre-expanded beads from coming out. The

  The filling device 24 includes a main body 24a for sending the pre-expanded beads to the molding space SP by being put on a flow of a transport medium (for example, air), and a transport path 24b for guiding the pre-expanded beads to the molding space SP. The conveyance path 24 b is disposed so as to pass through the internal space SA of the first mold unit 10.

  In the present embodiment, a description will be given assuming that the second mold unit 20 (unit including the convex mold 22) moves relative to the first mold unit 10. In the following description (the same applies to other embodiments), the movement direction of the convex mold 22 accompanying the relative movement of the second mold unit 20 with respect to the first mold unit 10 is simply referred to as “movement direction DT of the convex mold 22”. . In the moving direction DT of the convex mold 22, the convex mold 22 side indicates the side where the main wall 22 a of the convex mold 22 exists, and the concave mold 12 side indicates the side where the main wall 12 a of the concave mold 12 exists. .

The manufacturing method of the foam molded product 90 using the mold apparatus 1 for foam molded products will be described.
As shown in FIG. 2, the foam molded product mold 30 is set in a cracking state. Next, in this state, pre-expanded beads are filled. At this time, the transport medium is discharged from the communication path 12d. After filling the pre-expanded beads, the foam molded product mold 30 is set in the mold closed state and heated by steam ejected from the heating / cooling devices 13 and 23. As a result, the pre-expanded beads are foamed and fused. Then, the mold 30 for foam molded products is cooled by the cooling water ejected from the heating and cooling devices 13 and 23, and the mold is opened. Then, the foam molded product 90 is taken out from the mold 30 for the foam molded product that has been opened.

With reference to FIGS. 3-6, the metal mold | die 30 for foam molded articles is explained in full detail.
The foam-molded product mold 30 molds a foam-molded product 90 (see FIG. 13) in which a part of the frame 91 protrudes from the foamed resin portion 95. The mold 30 for the foam molded product is manufactured by the manufacturing method as described above, that is, after filling the pre-expanded beads, one of the concave mold 12 and the convex mold 22 is moved relative to the other, whereby the foam molded product 90 is moved. It can be used in a manufacturing method for molding.

  With respect to such a mold 30 for a foam-molded product, first, a mold 500 for a foam-molded product according to a reference example, which is compared with the mold 30 for a foam-molded product according to the present embodiment, will be described.

FIG. 3 schematically shows a mold 500 for a foamed molded product of a reference example.
The mold for foam molded product 500 includes a concave mold 512, a convex mold 522, and a closing wall 550 that closes an opening 545 described later. The convex mold 522 is fitted into the concave mold 512. The side wall 522b of the convex mold 522 is in sliding contact with the side wall 512b of the concave mold 512. The recessed mold 512 is provided with an insertion portion 513 extending from the end surface of the side wall 512b. A portion surrounded by the insertion portion 513 of the concave mold 512 and the side wall 522b of the convex mold 522 (hereinafter referred to as “opening 545”) allows the molding space SP to communicate with the outside.

  The protruding portion 593 of the frame 591 is arranged as follows with respect to the concave mold 512. That is, the main body portion of the frame 591 is disposed in the molding space SP, and the protruding portion 593 of the frame 591 is exposed to the outside from the opening portion 545, and the bottom surface 515 of the base portion 514 provided at the lower end of the insertion portion 513. Placed in. In the cracking state and the mold closing state, the closing wall 550 closes the opening 545 so as to press the protrusion 593. The closing wall 550 is biased by a biasing member 560 (for example, a coil spring). Accordingly, the opening 545 is closed by the closing wall 550 while the convex mold 522 moves between the cracking state and the mold closing state.

  In the foam-molded product mold 500 of the reference example, the protruding portion 593 of the frame 591 is pressed by the closing wall 550. For this reason, there are the following problems. When the projecting portion 593 of the frame 591 is deformed so as to deviate from the design reference dimension (hereinafter, when the frame 591 is deformed), when the mold is closed, the pressing force is concentrated on a part of the closing wall 550, There is a possibility that the closing wall 550 deteriorates and is partially chipped or deformed due to the deterioration. Further, in the case of deformation of the frame 591, the projecting portion 593 is pressed against the closing wall 550, whereby the main body portion (other than the projecting portion 593) of the frame 591 is made with respect to the outer shape of the foamed resin portion of the foam molded product. It arrange | positions in the place shifted | deviated from the original arrangement | positioning (standard arrangement | positioning on design), As a result, the intensity | strength of a foaming molded product may fall. Further, in the case where the main body of the frame 591 is fixed so as not to be displaced with respect to the concave mold 512 or the convex mold 522, if the protruding portion 593 of the frame 591 is deformed, the protruding portion 593 of the frame 591 becomes the closed wall 550. The entire frame 591 is deformed by being pressed, and the entire frame 591 is molded in a deformed state. As a result, stress remains in the foamed molded product.

  As described above, various problems may occur due to the deformation of the protruding portion 593 of the frame 591. In particular, when the protruding portion 593 is bent in the moving direction of the convex mold 522 (see FIG. 17), such a problem becomes significant. This is because the projecting portion 593 having the bent structure is likely to cause manufacturing variations, and it is difficult to press the projecting portion 593 with the closing wall 550 without deforming the shape of the bent structure at all.

With reference to FIG.4, FIG5 and FIG.6, an example of the metal mold | die 30 for foam molded products which concerns on this embodiment is demonstrated.
Here, a mold 30 for a foam molded product for molding a foam molded product 90 (see FIG. 13) having the following structure will be described. The foam molded article 90 has a frame 91 made of metal (for example, iron, copper, aluminum alloy) or resin (resin having higher rigidity than the foamed resin portion 95). The frame 91 includes a main body 92 and two projecting portions 93 that extend from the main body 92 and project from the foamed resin portion 95. The two protrusions 93 are arranged at a set distance apart, connected at the tip, and have a U-shape as a whole. The “connection” of the two protrusions 93 indicates a connection on the outer shape, and one protrusion 93 continuously extends to the other protrusion 93 (for example, a metal rod is connected). This is a concept including connection by connection, connection by simple contact, and the like.

  The foam-molded product mold 30 includes a concave mold 12 as a first mold, a convex mold 22 as a second mold, and a closing wall 50 that closes the opening 45.

The concave mold 12 includes a main wall 12a and a side wall 12b surrounding the main wall 12a. The concave mold 12 is provided with the communication path 12d described above.
Further, the concave mold 12 is provided with an insertion portion 40 through which the two protrusions 93 of the frame 91 are inserted. The insertion portion 40 extends from the end surface 12f of the side wall 12b of the concave mold 12 toward the lower side of the concave mold 12 (the main wall 12a side). That is, the insertion part 40 is provided so as to cut out a part of the side wall 12b. The insertion part 40 has a pair of side surfaces 41 along the movement direction DT of the convex mold 22 and a bottom surface 42 disposed between the pair of side surfaces 41. The bottom surface 42 of the insertion part 40 is disposed closer to the concave mold 12 than the protrusion 93 of the frame 91 in the movement direction DT of the convex mold 22.

  The convex mold 22 includes a main wall 22a and a side wall 22b surrounding the main wall 22a. The side wall 22b of the convex mold 22 is disposed inside the side wall 12b of the concave mold 12 and is in sliding contact with the side wall 12b. The convex mold 22 moves relative to the concave mold 12.

  As shown in FIG. 4, when the convex mold 22 is fitted into the concave mold 12, a part of the insertion part 40 of the concave mold 12 is closed by the side wall 22 b of the convex mold 22, and the other part is opened. That is, the opening 45 (see FIG. 5) is configured by the insertion portion 40 of the concave mold 12 and the side wall 22b of the convex mold 22. The opening 45 is surrounded by the pair of side surfaces 41 and the bottom surface 42 of the insertion portion 40 and the lower surface of the side wall 22b of the convex mold 22 (that is, the end of the lower surface 22d of the main wall 22a). The two protrusions 93 of the frame 91 pass through the opening 45 and exit to the outside (see FIG. 5).

  The closing wall 50 closes a part of the opening 45. This is to prevent the pre-expanded beads from leaking to the outside from the opening 45 or to suppress the leakage amount when the pre-expanded beads are filled in the molding space SP in the cracked state. Moreover, it is for suppressing that a foaming resin flows out of the opening part 45 at the time of shaping | molding.

  The closing wall 50 is attached to the convex mold 22 so as to be movable in a direction along the movement direction DT of the convex mold 22. Then, the closing wall 50 closes at least a part other than the area AR extending before and after the protruding portion 93 of the frame 91 in the moving direction DT of the convex mold 22.

  In the closed wall 50, the surface 52 on the molding space SP side is preferably substantially flush with the outer surface 22 c of the side wall 22 b of the convex mold 22. It is preferable that a C surface 53 is applied to the corner of the end surface 51 of the closing wall 50. The closing wall 50 is movably supported by the support portion 60.

  The support portion 60 is provided on the outer surface side of the side wall 22b of the convex mold 22 and extends along the moving direction DT of the convex mold 22. The support part 60 is inserted through the insertion part 40. The end surface 66 of the support portion 60 faces the bottom surface 42 of the insertion portion 40. A pair of side surfaces 61 (outer side surfaces 61) arranged so as to sandwich the closing wall 50 in the support portion 60 are in sliding contact with the pair of side surfaces 41 of the insertion portion 40.

  The support portion 60 includes a support main body portion 62 and a pair of support walls 63 that support the closing wall 50 therebetween. The pair of support walls 63 and the support main body 62 constitute a guide groove 64 that guides the closing wall 50. The guide groove 64 extends along the movement direction DT of the convex mold 22. The closing wall 50 is inserted into the guide groove 64 so as to be movable along the moving direction DT of the convex mold 22. An urging member 65 (for example, a coil spring) that urges the closing wall 50 is disposed inside the guide groove 64, and the closing wall 50 is directed from the convex mold 22 toward the concave mold 12 by the urging member 65. Be energized by. The side surface 54 of the closing wall 50 is in sliding contact with the inner surface of the support wall 63 (the surface constituting the guide groove 64). The end surface 51 of the closing wall 50 is in contact with the bottom surface 42 of the insertion part 40. The closing wall 50 continues to press the bottom surface 42 of the insertion portion 40 while the foam molded product mold 30 is in a predetermined state from the cracking state to the mold closing state by the urging force of the urging member 65.

  Further, the end surface 66 of the support portion 60 is disposed where the protruding portion 93 of the frame 91 protrudes. The end surface 66 of the support portion 60 is provided with a guide groove end 64a of the guide groove 64 and an arrangement portion 67 where the protruding portion 93 of the frame 91 is disposed. The arrangement portion 67 is arranged around the guide groove end 64a. The placement portion 67 is provided with a suction portion 68 that sucks the protruding portion 93 of the frame 91. When the frame 91 is made of a ferromagnetic material (iron or the like), the attracting unit 68 is made of a magnet, for example.

With reference to FIG. 6, the relationship between the closing wall 50 and the protrusion 93 of the frame 91 in the opening 45 will be described.
The opening 45 is surrounded by the pair of side surfaces 41 and the bottom surface 42 of the insertion portion 40 and the lower surface of the side wall 22b of the convex mold 22 (that is, the end of the lower surface 22d of the main wall 22a).

  The support part 60 is inserted through the insertion part 40 and closes a part of the opening 45. Further, as described above, the closing wall 50 closes a portion of the opening 45 other than the region AR extending in the front-rear direction of the protruding portion 93 of the frame 91 in the moving direction DT of the convex mold 22. And since the protrusion part 93 of the flame | frame 91 is arrange | positioned in the area | region AR which extends before and after the protrusion part 93 of the flame | frame 91 by the moving direction DT of the convex mold | type 22, the remaining part SR is not closed in this area | region AR. Open.

  The mold 30 for a foam molded product having the above configuration has the following action. Between the cracking state and the mold closing state, the closing wall 50 presses the bottom surface 42 of the insertion portion 40 and closes the opening 45. Further, at least a part of the area AR extending before and after the projecting portion 93 of the frame 91 is opened in the moving direction DT of the convex mold 22 from the cracking state to the mold closing state. For this reason, no pressing force is applied to the protruding portion 93 of the frame 91.

The effect of this embodiment will be described.
(1) The closing wall 50 is movable in a direction along the moving direction DT of the convex mold 22 (second mold), and the opening portion 45 of the protruding portion 93 of the frame 91 is moved in the moving direction DT of the convex mold 22. At least a part other than the region AR extending in the front-rear direction is closed. For this reason, the opening 45 is closed by the closing wall 50. And since the closing wall 50 is comprised so that at least one part other than the area | region AR over the protrusion part 93 of the flame | frame 91 may be closed by the moving direction DT of the convex type 22, the protrusion part 93 of the flame | frame 91 is closed. It is not pressed by the wall 50. For this reason, deterioration of the mold 30 for a foam-molded product, which can occur when the frame 91 is pressed, is suppressed. In particular, the deterioration of the closing wall 50 is suppressed.

(2) In the mold 30 for foam molded products, the closing wall 50 is urged so that the end surface 51 pushes the bottom surface 42 of the insertion portion 40 of the concave mold 12.
According to this configuration, since the end surface 51 of the closing wall 50 presses the bottom surface 42 of the insertion portion 40 in the predetermined movement range in which the convex mold 22 relatively moves, at least a part of the opening 45 continues to be closed over the predetermined movement range. It is done.

  (3) The foam molded product mold 30 includes a support portion 60 that supports the closing wall 50. The pair of side surfaces 61 of the support portion 60 are in sliding contact with the pair of side surfaces 41 of the insertion portion 40, respectively. According to this configuration, there is no gap between the side surface 41 of the insertion portion 40 and the side surface 61 of the support portion 60. For this reason, it is suppressed that the foaming resin which leaks from the opening part 45 enters this clearance gap. Thereby, the resin flash adhering to the mold 30 for foam molded products can be suppressed.

  (4) In the above-described mold 30 for a foam molded product, the end surface 66 of the support portion 60 is provided with an arrangement portion 67 where the protruding portion 93 of the frame 91 is arranged. According to this configuration, the protruding portion 93 of the frame 91 is positioned. Compared to the case where the frame 91 is supported only by a portion other than the protruding portion 93, the positional deviation of the protruding portion 93 of the frame 91 is suppressed.

  (5) In the mold 30 for a foam molded product, the arrangement part 67 in the support part 60 has an adsorption part 68 that adsorbs the protruding part 93 of the frame 91. According to this configuration, the positional deviation of the protruding portion 93 of the frame 91 in the foamed resin portion 95 is suppressed. Note that when the frame 91 is made of a material other than a ferromagnetic material, the suction portion 68 is formed as a suction hole connected to a decompression device, for example.

Second Embodiment
With reference to FIG.7 and FIG.8, the metal mold | die 130 for foam molded products which concerns on this embodiment is demonstrated. FIG. 7 is a cross-sectional view taken along a line corresponding to the line AA in FIG. 4 in the foam molded product mold 130 according to the present embodiment.

  The foam-molded product mold 130 is a mold for molding a foam-molded product 90 (see FIG. 13) in which a part of the frame 91 protrudes from the foamed resin portion 95, and the foam-molded product according to the first embodiment. It has the same use as the product mold 30. The difference between the foam-molded product mold 130 according to this embodiment and the foam-molded product mold 30 according to the first embodiment is that the opening 145 through which the two projecting portions 93 of the frame 91 are inserted is closed. In the structure. Hereinafter, this difference will be described.

  In the first embodiment, the projecting portion 93 of the frame 91 is disposed on the placement portion 67 of the support portion 60 that supports the closing wall 50, but in this embodiment, the projection portion 93 is disposed on the bottom surface 142 of the insertion portion 140 of the concave mold 112. The

  As shown in FIG. 8, when the convex mold 122 is fitted into the concave mold 112 (that is, the cracking state, the mold closed state, or the middle state from the cracking state to the mold closed state), the insertion portion 140 of the concave mold 112 A part is closed by the side wall 122b of the convex mold 122, and the other part is opened. Specifically, the insertion portion 140 of the concave mold 112 and the side wall 122b of the convex mold 122 constitute an opening 145. Opening 145 is surrounded by the pair of side surfaces 141 and bottom surface 142 of insertion portion 140 and the lower surface of side wall 122b of convex mold 122 (that is, the end of lower surface 122d of main wall 122a). The two protrusions 93 of the frame 91 pass through the opening 145 and exit to the outside (see FIG. 7).

  The opening 145 is closed by the closing wall 150. The support part 160 is provided in the convex mold | type 122 similarly to 1st Embodiment. A biasing member 165 that biases the closing wall 150 is accommodated in the support portion 160.

  The concave mold 112 is provided with a base 114 for placing the protruding portion 93 of the frame 91. The base 114 is provided so as to protrude from the periphery of the insertion part 140 on the side wall 112 b of the concave mold 112. The base part 114 has an extended surface 142 x extending from the bottom surface 142 of the insertion part 140.

  In addition, the extended surface 142x of the base portion 114 is disposed where the protruding portion 93 of the frame 91 protrudes. The extension surface 142x of the base 114 is provided with an abutment portion 142a where the end surface 151 of the closing wall 150 abuts and an arrangement portion 142b where the protruding portion 93 of the frame 91 is disposed. The extension surface 142x is provided with a suction portion 168 that sucks the protruding portion 93 of the frame 91. When the frame 91 is made of a ferromagnetic material (such as iron), the attracting unit 168 is made of, for example, a magnet.

With reference to FIG. 8, the relationship between the closing wall 150 and the protrusion part 93 of the flame | frame 91 in the opening part 145 is demonstrated.
The opening 145 is surrounded by the pair of side surfaces 141 and the bottom surface 142 of the insertion portion 140 and the lower surface of the side wall 122b (that is, the end of the lower surface 122d of the main wall 122a).

  The support part 160 is inserted through the insertion part 140 and closes a part of the opening 145. In addition, the closing wall 150 closes a portion of the opening 145 other than the region AR that extends in the front-rear direction of the protruding portion 93 of the frame 91 in the moving direction DT of the convex mold 122. And since the protrusion part 93 of the frame 91 is arrange | positioned in the area | region AR before and behind the protrusion part 93 of the flame | frame 91 by the moving direction DT of the convex mold 122, the remaining part SR is not closed in this area | region AR. Open.

The effect of this embodiment will be described.
The foam molded product mold 130 according to the present embodiment has effects according to the above (1) to (3) based on the same configuration as that of the first embodiment.

  The concave mold 112 has a base 114. The base 114 has an extended surface 142 x that is a surface obtained by extending the bottom surface 142 of the insertion portion 140. The extended surface 142x is provided with an abutting portion 142a where the end surface 151 of the closing wall 150 abuts and an arrangement portion 142b where the protruding portion 93 of the frame 91 is disposed. According to this configuration, the projecting portion 93 of the frame 91 is positioned by arranging the projecting portion 93 of the frame 91 on the disposing portion 142 b on the extended surface 142 x of the base 114. For this reason, as compared with the case where the frame 91 is supported only by a portion other than the protruding portion 93, the positional deviation of the protruding portion 93 of the frame 91 is suppressed.

<Third Embodiment>
With reference to FIG.9 and FIG.10, the metal mold | die 230 for foam molded products which concerns on this embodiment is demonstrated. FIG. 9 is a cross-sectional view taken along a line corresponding to the AA line of FIG. 4 in the foam molded product mold 230 according to the present embodiment.

  The foam-molded product mold 230 is a mold for molding the foam-molded product 90 (see FIG. 13) in which a part of the frame 91 protrudes from the foamed resin portion 95, and is foam-molded according to the first embodiment. It has the same use as the product mold 30. The difference between the foam molded product mold 230 according to the present embodiment and the foam molded product mold 30 according to the first embodiment is that the opening 245 through which the two protrusions 93 of the frame 91 are inserted is closed. In the structure. Hereinafter, this difference will be described.

  In the first embodiment, the support portion 60 that supports the closing wall 50 is provided on the convex mold 22. On the other hand, in the present embodiment, the support portion 260 that supports the closing wall 250 is provided in the concave mold 212.

  The concave mold 212 is provided with an insertion portion 240 through which the protruding portion 93 of the frame 91 is inserted. A bottom surface 242 of the insertion portion 240 (at the same position as an end surface of a support portion 260 described later) is disposed closer to the concave mold 212 than the protruding portion 93 of the frame 91 in the moving direction DT of the convex mold 222.

  The convex mold 222 is provided with an opposing wall 214 that faces the bottom surface 242 of the insertion part 240 of the concave mold 212. The facing wall 214 includes a facing portion 214a that faces the bottom surface 242 of the insertion portion 240, and a connection portion 214b that connects the facing portion 214a and the side wall 222b of the convex mold 222 (see FIG. 9). The opposing wall 214 is inserted into the insertion part 240. The facing surface 215 of the facing wall 214 faces the bottom surface 242 of the insertion part 240. The pair of side surfaces 216 of the opposing wall 214 are in sliding contact with the pair of side surfaces 241 of the insertion portion 240, respectively (see FIG. 10).

  As shown in FIG. 10, when the convex mold 222 is fitted into the concave mold 212, a part of the insertion portion 240 of the concave mold 212 is closed by the side wall 222b of the convex mold 222, and the other part is opened. Specifically, the insertion portion 240 of the concave mold 212 and the facing wall 214 of the convex mold 222 constitute an opening 245. The opening 245 is surrounded by a pair of side surfaces 241 and a bottom surface 242 of the insertion portion 240 and an opposing wall 214 provided on the side wall 222 b of the convex mold 222. The two protrusions 93 of the frame 91 pass through the opening 245 and exit to the outside (see FIG. 9).

The closing wall 250 closes a part of the opening 245.
Specifically, the closing wall 250 is attached to the concave mold 212 so as to be movable in a direction along the movement direction DT of the convex mold 222. Then, the closing wall 250 closes at least a part other than the region AR extending in the front-rear direction of the protrusion 93 of the frame 91 in the moving direction DT of the convex mold 22. The closing wall 250 is movably supported by the support portion 260.

The support portion 260 is provided on the outer surface side of the side wall 212 b of the concave mold 212 and extends along the moving direction DT of the convex mold 222.
The support part 260 includes a support main body part 262 and a pair of support walls 263 that support the closing wall 250 so as to sandwich it. The pair of support walls 263 and the support main body portion 262 constitute a guide groove 264 that guides the closing wall 250. The guide groove 264 extends along the moving direction DT of the convex mold 222. A closing wall 250 is inserted into the guide groove 264 so as to be movable along the moving direction DT of the convex mold 222. A biasing member 265 (for example, a coil spring) that biases the closing wall 250 is disposed inside the guide groove 264. Be energized by. The end surface 251 of the closing wall 250 contacts the facing surface 215 of the facing wall 214. The closing wall 250 continues to press the facing surface 215 of the facing wall 214 while the foam molded product mold 30 is in a predetermined state from the cracking state to the mold closing state by the urging force of the urging member 265. .

  Further, the facing surface 215 of the facing wall 214 is disposed where the protruding portion 93 of the frame 91 protrudes. The facing surface 215 of the facing wall 214 is provided with an abutting portion 215a with which the end surface 251 of the closing wall 250 abuts and an arrangement portion 215b where the protruding portion 93 of the frame 91 is disposed. The arrangement part 215b is arranged around the contact part 215a. Further, the opposing surface 215 is provided with a suction portion 268 that sucks the protruding portion 93 of the frame 91. When the frame 91 is made of a ferromagnetic material (iron or the like), the attracting unit 268 is made of, for example, a magnet.

With reference to FIG. 10, the relationship between the closing wall 250 and the protrusion 93 of the frame 91 in the opening 245 will be described.
The opening 245 is surrounded by a pair of side surfaces 241 and a bottom surface 242 of the insertion portion 240 and an opposing wall 214 provided on the side wall 222 b of the convex mold 222.

  The opposing wall 214 is inserted into the insertion part 240. Further, as described above, the closing wall 50 closes a portion of the opening 245 other than the region AR extending before and after the protruding portion 93 of the frame 91 in the moving direction DT of the convex mold 222. And since the protrusion part 93 of the frame 91 is arrange | positioned in the area | region AR over and behind the protrusion part 93 of the flame | frame 91 by the moving direction DT of the convex mold 222, the remaining part SR is not closed in this area | region AR. Open.

The effect of this embodiment will be described.
The foam molded product mold 230 according to the present embodiment has an effect according to (1) shown in the first embodiment based on the same configuration as the first embodiment, and further has the following effects. Have.

  (1) In the foam molded product mold 230, the convex mold 222 (second mold) has an opposing wall 214 that faces the bottom surface 242 of the insertion portion 240. The closing wall 250 is provided in the concave mold 212, and is biased so that the end surface 251 of the closing wall 250 pushes the facing surface 215 of the facing wall 214. According to this configuration, in the predetermined movement range in which the convex mold 222 moves relative to the concave mold 212, the end surface 251 of the closing wall 250 presses the opposing surface 215 of the opposing wall 214. At least a portion is closed.

  (2) In the foam molded product mold 230, the opposing wall 214 is inserted into the insertion portion 240, and the pair of side surfaces 216 of the opposing wall 214 are in sliding contact with the pair of side surfaces 241 of the insertion portion 240, respectively. According to this configuration, when the opposing wall 214 is inserted into the insertion portion 240, there is no gap between the side surface 241 of the insertion portion 240 and the side surface 216 of the opposing wall 214. For this reason, it is suppressed that the resin which leaks from the opening part 245 enters this clearance gap. Thereby, the resin flash adhering to the mold 230 for foam molded products can be suppressed.

  (3) In the mold 230 for the foam molded product, on the facing surface 215 of the facing wall 214, an abutting portion 215a with which the end surface 251 of the closing wall 250 abuts and an arrangement portion where the protruding portion 93 of the frame 91 is disposed. 215b.

  According to this configuration, the projecting portion 93 of the frame 91 is positioned by arranging the projecting portion 93 of the frame 91 on the disposing portion 215 b on the facing surface 215 of the facing wall 214. Further, as compared with the case where the frame 91 is supported only by a portion other than the protruding portion 93, the positional deviation of the protruding portion 93 of the frame 91 is suppressed.

  (4) In the foam molded product mold 230, the placement portion 215 b on the facing surface 215 of the facing wall 214 has a suction portion 268 that sucks the protruding portion 93 of the frame 91. According to this configuration, the positional deviation of the protruding portion 93 of the frame 91 in the foamed resin portion 95 is suppressed.

<Fourth embodiment>
With reference to FIG.11 and FIG.12, the metal mold | die 330 for foam molded products which concerns on this embodiment is demonstrated. FIG. 11 is a cross-sectional view taken along a line corresponding to the AA line of FIG. 4 in the foam molded product mold 330 according to the present embodiment.

  The foam molded product mold 330 is obtained by changing a part of the foam molded product mold 30 according to the third embodiment. The foam-molded product mold 330 is a mold for molding a foam-molded product 90 (see FIG. 13) in which a part of the frame 91 protrudes from the foamed resin portion 95, and is a foam-molded product according to the third embodiment. It has the same use as the product mold 230. The difference between the foam-molded product mold 330 according to the present embodiment and the foam-molded product mold 230 according to the third embodiment is that the opening 345 through which the two protruding portions 93 of the frame 91 are inserted is closed. In the structure. Hereinafter, this difference will be described.

  In the third embodiment, the protruding portion 93 of the frame 91 is disposed on the disposition portion 215 b of the facing wall 214 that faces the bottom surface 242 of the insertion portion 240. On the other hand, in the present embodiment, the protruding portion 93 of the frame 91 is disposed on the support portion 360 that supports the closing wall 350.

  As shown in FIG. 12, when the convex mold 322 fits into the concave mold 312, a part of the insertion part 340 of the concave mold 312 is closed by the side wall 322 b of the convex mold 322, and the other part is opened. Specifically, the opening 345 is configured by the insertion part 340 of the concave mold 312 and the opposing wall 314 (see below) of the convex mold 322. The opening 345 is surrounded by the pair of side surfaces 341 and the bottom surface 342 of the insertion portion 340 and the lower surface of the opposing wall 314 of the side wall 322b of the convex mold 322. The two protrusions 93 of the frame 91 pass through the opening 345 and exit to the outside (see FIG. 11).

  The opening 345 is closed by a closing wall 350 that is supported by the support 360. The support part 360 is provided in the concave mold 312 as in the third embodiment. A biasing member 365 that biases the closing wall 350 is accommodated in the support portion 360.

  The convex mold 322 is provided with an opposing wall 314 that faces the bottom surface 342 of the insertion part 340 of the concave mold 312. The opposing wall 314 extends along the movement direction DT of the convex mold 322. The facing surface 315 facing the closing wall 350 in the facing wall 314 is disposed closer to the concave mold 312 than the lower surface 322d of the main wall 322a. The opposing wall 314 passes through the insertion part 340. The facing surface 315 of the facing wall 314 faces the bottom surface 342 of the insertion portion 340, and the end surface 351 of the closing wall 350 is pressed against it. The pair of side surfaces 316 of the opposing walls 314 are in sliding contact with the pair of side surfaces 341 of the insertion portion 340, respectively.

  Further, the end surface 366 of the support portion 360 is disposed where the protruding portion 93 of the frame 91 protrudes. An end surface 366 of the support portion 360 (in this embodiment, the same as the bottom surface 342 of the insertion portion 340) is provided with a guide groove end 364a of the guide groove 364 and an arrangement portion 367 where the protruding portion 93 of the frame 91 is disposed. It is done. The arrangement portion 367 is arranged around the guide groove end 364a. The placement portion 367 is provided with a suction portion 368 that sucks the protruding portion 93 of the frame 91. When the frame 91 is made of a ferromagnetic material (such as iron), the attracting unit 368 is made of a magnet, for example.

With reference to FIG. 12, the relationship between the closing wall 350 and the protrusion 93 of the frame 91 in the opening 345 will be described.
The opening 345 is surrounded by the pair of side surfaces 341 and the bottom surface 342 of the insertion portion 340 and the lower surface of the opposing wall 314 of the side wall 322b.

  The opposing wall 314 passes through the insertion part 340. In addition, the closing wall 350 closes a portion of the opening 345 other than the region AR extending before and after the protruding portion 93 of the frame 91 in the moving direction DT of the convex mold 322. And since the protrusion part 93 of the flame | frame 91 is arrange | positioned in the area | region AR before and behind the protrusion part 93 of the flame | frame 91 by the moving direction DT of the convex mold 322, remaining part SR is not closed in this area | region AR. Open.

The effect of this embodiment will be described.
The foam-molded product mold 330 according to the present embodiment has effects similar to the above (1) and (2) based on the same configuration as that of the third embodiment, and further has the following effects.

  The concave mold 312 has a support portion 360 that movably supports the closing wall 350. The end surface 366 of the support portion 360 is provided with a guide groove end 364a of the guide groove 364 and an arrangement portion 367 where the protruding portion 93 of the frame 91 is disposed.

  According to this configuration, the projecting portion 93 of the frame 91 is positioned by arranging the projecting portion 93 of the frame 91 on the disposing portion 367 on the end surface 366 of the support portion 360. Compared to the case where the frame 91 is supported only by a portion other than the protruding portion 93, the positional deviation of the protruding portion 93 of the frame 91 is suppressed.

<Fifth Embodiment>
With reference to FIG.13 and FIG.14, the foam molded product 90 shape | molded with the above-mentioned mold 30 for foam molded products is demonstrated.

  The foam molded product 90 includes a frame 91 and a foamed resin portion 95. A main body 92 that is a part of the frame 91 is embedded in the foamed resin portion 95. Two projecting portions 93 that are a part of the frame 91 project from the foamed resin portion 95. The two protrusions 93 are arranged so as to be separated by a set distance. The frame 91 is made of metal (for example, iron, copper, aluminum alloy) or a resin having higher rigidity than the foamed resin portion 95. The foamed resin portion 95 has a first surface 95a, a second surface 95b, and a side surface 95c that connects the first surface 95a and the second surface 95b. The protruding portion 93 of the frame 91 protrudes from the side surface 95c. Here, the direction from the first surface 95a toward the second surface 95b or the opposite direction is referred to as a first direction DA, which is a direction along the side surface 95c and intersects the first direction DA (in the first direction DA). The orthogonal direction is defined as the second direction DB.

  According to the foam molded product mold 30 according to the first embodiment, the closing wall 50 closes a portion other than the region AR extending before and after the projecting portion 93 of the frame 91. The end surface 51 of the closing wall 50 passes between the two protrusions 93 and contacts the bottom surface 42 of the insertion part 40 of the concave mold 12. For this reason, the line comprised by the closing wall 50 and the concave mold 12 is comprised as follows. The lines include two first lines 96a, one second line 96b, and two third lines 96c.

FIG. 14 shows a first line 96a, a second line 96b, and a third line 96c.
The two first lines 96 a are lines corresponding to the side surface 54 of the closing wall 50 and are disposed between the two protrusions 93. Further, both the two first lines 96a extend in the same direction along the first direction DA from the protruding portion 93. For example, the first line extends in a direction perpendicular to the direction in which the two protrusions 93 are arranged.

  The second line 96 b is a parting line by a mold (convex type, concave type) or a line corresponding to the end surface 51 of the closing wall 50. The second line 96b extends from the protrusion 93 in the second direction DB intersecting the first direction DA, and extends through the end point of the first line 96a. That is, the first line 96a and the second line 96b intersect the T shape. Further, the second line 96b is arranged at a position shifted by a predetermined distance from a center line CNL connecting the center points of the two protrusions 93 in a direction perpendicular to the direction in which the two protrusions 93 are arranged. That is, the second line 96b is provided between a portion of the side surface 95c where the protruding portion 93 protrudes and a boundary line 95d between the side surface 95c and the second surface 95b (or the first surface 95a).

  The third line 96c is a parting line by a mold. The third line 96c is a line corresponding to the side surface 41 of the insertion part 40 of the concave mold 12, and is arranged outside the protrusion part 93 in the direction in which the protrusions 93 are arranged, and from each of the two protrusion parts 93 in the first direction DA. Extending along.

  In addition, the trace 97 of the resin beam exists in the base of the two protrusion parts 93. FIG. The trace 97 exists between the first line 96a and the third line 96c. The position of the resin beam trace 97 exists in the same manner in any of the foam molded products 90 molded by the molds 30, 130, 230, 330 for the foam molded products shown in the first to fourth embodiments. .

  The arrangement of the first line 96a can be a mark for determining the orientation of the foam molded product 90. For example, when the foam molded product 90 has a symmetric structure, it is difficult to determine the direction only with the outer structure. Since the first line 96a extends in a predetermined direction while intersecting the T shape with respect to the second line 96b, the orientation of the foam molded product 90 can be defined based on the arrangement of the first line 96a. The operator can easily determine the orientation of the foam molded product 90 based on the definition. By setting the orientation of the foam molded product 90, when the foam molded product 90 is attached to a vehicle or the like, the foam molded product 90 can always be in the same orientation. For example, when the main body portion 92 of the frame 91 embedded in the foamed resin portion 95 has an asymmetric structure, the foam molded product 90 can be attached to a vehicle or the like in a predetermined direction (for example, a direction in which the center of gravity is disposed below). . In such a case, the operator can confirm the arrangement of the first line 96a and install the foam molded product 90 in an appropriate direction.

  Similarly, the arrangement of the second line 96b can serve as a mark for determining the orientation of the foam molded product 90. The second line 96b is arranged so as to be shifted in a direction perpendicular to the direction in which the two protrusions 93 are arranged with respect to the center line CNL connecting the center points of the two protrusions 93. The orientation of the foam molded product 90 can be defined based on the arrangement of 96b. The operator can easily determine the orientation of the foam molded product 90 based on the definition.

  In addition, the structure of the 1st line 96a and the 2nd line 96b appears similarly also in any foam molded product 90 by the various metal mold | die shown above.

<Other embodiments>
-In 1st Embodiment, although the structure which supports the main-body part 92 of the frame 91 is not shown, the main-body part 92 of the frame 91 is the rib 19 provided in either the convex type 22 or the concave mold 12, or urging | biasing It is supported by a rib 19 biased by the member. Moreover, since the convex mold | type 22 moves relatively with respect to the concave mold | type 12, it is preferable that the main-body part 92 of the flame | frame 91 and the protrusion part 93 of the flame | frame 91 are supported by the same type | mold. Thereby, the movement of the frame 91 with the relative movement of the convex mold 22 is suppressed.

  The mold shown in FIG. 15 is a modification of the foam molded product mold 30 according to the first embodiment, and the foam molded product mold 30X has a support structure for supporting the main body 92 of the frame 91. Have. In this example, the main body 92 of the frame 91 is supported by the rib 19 protruding from the main wall 22 a of the convex mold 22. That is, the main body 92 of the frame 91 and the protrusion 93 of the frame 91 are supported by the same mold. The rib 19 is provided with a suction portion 69 that sucks the main body 92 of the frame 91. The adsorption part 69 has the same structure as the adsorption part 68 shown in the first embodiment. When all of the support means for supporting the frame 91 have a support structure based on adsorption, the frame 91 is not subjected to a pressing force from the mold during molding, so that deformation of the frame 91 during molding is suppressed. Thereby, the residual stress between the frame 91 and the foamed resin portion 95, which is generated based on the deformation of the frame 91 during molding, can be reduced.

  FIG. 16 shows a foam molded product 100 molded by a foam molded product mold 30X. The foam molded product 100 includes a frame 101 and a foamed resin portion 105. The foamed resin portion 105 has a recess 109 that is a through hole of the rib 19. Since the mold 30X for the foam molded product has a structure in which the main body portion 102 of the frame 101 and the protruding portion 103 of the frame 101 are supported by the same mold, the surface portion 101a supported by the rib 19 in the frame 101, and the support The face portion 101b supported by the portion 60 is on the same side. For this reason, in the foam molded product 100, the recess 109 corresponding to the rib 19 and the trace 107 of the resin beam are on opposite sides of the frame 101.

  -The shape of the protrusion part 93 of the flame | frame 91 used in each embodiment may extend linearly, may have a planar structure, or may be bent. When the portion from the base of the protruding portion 93 is bent toward the moving direction DT of the convex mold 22, the shape dimension (for example, the angle of bending) of the bent portion of the protruding portion 93 is likely to vary in manufacturing. If there is such a dimensional variation, the problem shown in the reference example (deterioration of the closed wall 550, deformation of the frame 591 is caused by adopting a method of stopping the leakage of the foamed resin by sandwiching the protruding portion 93 as in the conventional mold. In this state, the molding and the residual stress are remarkable. In this respect, in the mold shown in each embodiment, no force is applied to the protrusion 93, and the above problem is remarkably reduced. For this reason, when shape | molding the flame | frame 91 which has the protrusion part 93 of a bending structure, there exists a remarkable effect especially.

  FIG. 17 is a perspective view showing the structure of the support portion 460 that supports the protruding portion 193 of the frame 191 having the protruding portion 193 having a bent structure. This perspective view is a modification of the support portion 60 of the first embodiment, and is a view when the convex mold 22 is viewed from the viewpoint of facing the convex mold 22 from the concave mold 12.

  The support part 460 includes a closing wall 450 and an arrangement part 467 in which the protruding part 193 of the frame 191 is arranged. The arrangement portion 467 is configured as a stepped portion or a groove along the shape of the protruding portion 193. The closing wall 450 protrudes from a portion other than the arrangement portion 467 in the support portion 460. When there is variation in the angle of the bent portion in the protrusion 193 due to manufacturing variations, a gap may be generated between the protrusion 193 and the arrangement portion 467 of the support portion 460, but due to the groove structure of the arrangement portion 467. The positioning is performed in the direction intersecting the moving direction DT of the convex mold 22. When the mold is closed, no force is applied to the protruding portion 193, so that the deformation of the frame 191 is suppressed.

  In each embodiment, the case where the frame 91 has two protrusions 93 has been described as an example, but the form of the protrusions 93 is not limited to this. The technique shown in each embodiment can also be applied to the frame 91 having one protrusion 93.

  DESCRIPTION OF SYMBOLS 1 ... Mold apparatus for foam molded products, 10 ... 1st mold unit, 11 ... Housing | casing, 11a ... Opening part, 12 ... Recess type, 12a ... Main wall, 12b ... Side wall, 12d ... Communication path, 12e ... Open end 12f ... end face, 13 ... heating / cooling device, 19 ... rib, 20 ... second mold unit, 21 ... housing, 21a ... opening, 22 ... convex, 22a ... main wall, 22b ... side wall, 22c ... outer surface , 23 ... Heating / cooling device, 24 ... Filling device, 24a ... Main body, 24b ... Conveying path, 30 ... Mold for foam molded product, 30X ... Mold for foam molded product, 40 ... Insertion part, 41 ... Side, 42 ... Bottom surface, 45 ... opening, 50 ... closed wall, 51 ... end face, 52 ... face, 53 ... C face, 54 ... side face, 60 ... support part, 61 ... side face, 62 ... support main body part, 63 ... support wall, 64 ... guide groove, 64a ... guide groove end, 65 ... biasing member, 66 ... end face, 67 ... arrangement portion, 68 Adsorption part, 69 ... Adsorption part, 90 ... Foam molded product, 91 ... Frame, 92 ... Main body part, 93 ... Projection part, 95 ... Foam resin part, 95a ... First surface, 95b ... Second surface, 95c ... Side surface, 95d ... Boundary line, 96a ... First line, 96b ... Second line, 96c ... Third line, 97 ... Trace, 100 ... Foamed molded product, 101 ... Frame, 101a ... Surface portion, 101b ... Surface portion, 102 ... Main body part 103 ... Projection part 105 ... Foamed resin part 107 ... Trace 109 ... Recessed part 112 ... Recessed part 112b ... Side wall 114 ... Base part 122 ... Convex type 122b ... Side wall 130 ... For foam molded products Metal mold 140 ... Insertion part 141 ... Side face 142 ... Bottom face 142a ... Contact part 142b ... Placement part 142x ... Extension face 145 ... Opening part 150 ... Closing wall 151 ... End face 160 ... Support part 165 ... Energizing Material: 168 ... Adsorption part, 191 ... Frame, 193 ... Projection part, 212 ... Recessed type, 212b ... Side wall, 214 ... Opposing wall, 214a ... Opposing part, 214b ... Connection part, 215 ... Opposing surface, 215a ... Abutting part, 215b: Arrangement part, 216 ... Side face, 222 ... Convex mold, 222b ... Side wall, 230 ... Mold for foam molded article, 240 ... Insertion part, 241 ... Side face, 242 ... Bottom face, 245 ... Opening part, 250 ... Closure wall, 251 ... End face, 260 ... Support part, 262 ... Support body part, 263 ... Support wall, 264 ... Guide groove, 265 ... Biasing member, 268 ... Suction part, 312 ... Concave type, 314 ... Opposite wall, 315 ... Opposite face, 316 ... Side surface, 322 ... Convex type, 322a ... Main wall, 322b ... Side wall, 322d ... Lower surface, 330 ... Mold for foam molded article, 340 ... Insertion part, 341 ... Side face, 342 ... Bottom face, 345 ... Opening part, 350 ... Closed wall, 351 ... end face, 360 ... support part, 364 ... guide groove, 364a ... guide groove end, 365 ... biasing member, 366 ... end face, 367 ... placement part, 368 ... suction part, 450 ... closed wall, 460 ... support Part, 467 ... arrangement part, 500 ... mold for foam molded article, 512 ... concave mold, 512b ... side wall, 513 ... insertion part, 514 ... pedal part, 515 ... bottom surface, 522 ... convex type, 522b ... side wall, 545 ... opening Part, 550 ... closed wall, 560 ... biasing member, 591 ... frame, 593 ... projecting part, AR ... region, SR ... remaining part, SP ... molding space, SA ... internal space, SB ... internal space, DT ... movement Direction, CL: Clearance, CNL: Center line.

Claims (20)

A foam-molded gold for forming a foam-molded product having a frame and a foamed resin portion, wherein a part of the frame is embedded in the foamed resin portion and the other part of the frame protrudes from the foamed resin portion Type,
A first mold having an insertion portion through which a protruding portion which is a portion protruding from the foamed resin portion in the frame is inserted;
A second mold which is movable relative to the first mold and forms a molding space with the first mold;
An opening that is configured by the insertion portion of the first mold to communicate the molding space with the outside, and includes a closing wall that closes a portion of the opening,
The closing wall is movable in a direction along a movement direction of relative movement of the second mold with respect to the first mold, and the frame protrudes in the movement direction of the second mold at the opening. Mold for foam molded products that closes at least a part other than the area extending before and after the part. The mold for foam-molded products according to claim 1, wherein the closing wall is provided in the second mold and is biased toward the first mold. The insertion part of the first mold has a pair of side surfaces extending along the moving direction of the second mold, and a bottom surface between the pair of side surfaces,
The mold for a foam-molded product according to claim 2, wherein the closing wall is urged so that an end surface of the closing wall presses a bottom surface of the insertion portion. The second mold has a support part that movably supports the closing wall;
The mold for a foam molded product according to claim 3, wherein the pair of side surfaces arranged so as to sandwich the closing wall between the support portions are in sliding contact with the pair of side surfaces of the insertion portion. The support part has a guide groove that guides the closing wall to be movable,
5. The guide groove end of the guide groove and an arrangement portion in which the protruding portion of the frame is disposed are provided on an end surface of the support portion that faces the bottom surface of the insertion portion of the first mold. The mold for foam molded articles as described. The mold for a foam-molded product according to claim 5, wherein the arrangement part on the end surface of the support part has an adsorption part that adsorbs the protruding part of the frame. The first mold includes a base including an extended surface in which a bottom surface of the insertion portion extends,
The contact surface where the said end surface of the said closure wall contacts is provided in the said extension surface of the said base part, and the arrangement | positioning part by which the said protrusion part of the said flame | frame is arrange | positioned. Mold for foam molded products. The mold for foam-molded products according to claim 7, wherein the extension surface of the base portion has an adsorption portion that adsorbs the protruding portion of the frame. The mold for a foam molded product according to claim 1, wherein the closing wall is provided in the first mold and is biased toward the second mold. The insertion part of the first mold has a pair of side surfaces extending along the moving direction of the second mold, and a bottom surface between the pair of side surfaces,
The second mold has an opposing wall facing the bottom surface of the insertion portion,
The mold for a foam molded product according to claim 9, wherein the closing wall is urged so that an end surface of the closing wall presses a facing surface of the facing wall. The opposing wall is inserted through the insertion portion,
The mold for foam-molded products according to claim 10, wherein the pair of side surfaces of the opposing walls are in sliding contact with the pair of side surfaces of the insertion portion, respectively. The first mold has a support portion that movably supports the closing wall;
The support part has a guide groove that guides the closing wall to be movable,
12. The foam according to claim 10, wherein the facing surface of the facing wall is provided with an abutting portion on which the end surface of the closing wall abuts and an arrangement portion on which the projecting portion of the frame is disposed. Mold for molded products. The mold for a foam-molded product according to claim 12, wherein the placement portion on the facing surface of the facing wall has a suction portion that sucks the protruding portion of the frame. The first mold has a support portion that movably supports the closing wall;
The support portion includes an end surface including the bottom surface of the insertion portion, and a guide groove that guides the closing wall in a movable manner.
The mold for foam-molded products according to claim 10 or 11, wherein an end face of the support part is provided with a guide groove end of the guide groove and an arrangement part in which the projecting part of the frame is arranged. The mold for a foam molded product according to claim 14, wherein the arrangement portion on the end surface of the support portion has an adsorption portion that adsorbs the protruding portion of the frame. The frame has two protrusions arranged at a set distance apart and extending from the molding space to the outside;
The mold for a foam molded product according to any one of claims 1 to 15, wherein the closing wall is disposed between the two protrusions. A foamed molded product molded by the foam molded product mold according to any one of claims 1 to 16,
A foamed molded article having a frame and a foamed resin part, wherein a part of the frame is embedded in the foamed resin part, and the other part of the frame projects as a projecting part from the foamed resin part. The frame has two projecting portions that are arranged at a set distance apart and project from the foamed resin portion,
In the foamed resin portion, two lines are provided between the two protrusions, the two lines extend in a direction perpendicular to the direction of arrangement of the two protrusions, and both the two lines The foam-molded article according to claim 17, which extends in the same direction. Having a frame and a foamed resin part,
The foamed resin portion has a first surface, a second surface opposite to the first surface, and a side surface connecting the first surface and the second surface,
A part of the frame is embedded in the foamed resin part, and the other part of the frame projects as a projecting part from the side surface of the foamed resin part,
The projecting portions have two, and the two projecting portions are arranged apart by a set distance and project from the side surface of the foamed resin portion,
A line is provided around the two protruding portions on the side surface in the foamed resin portion,
In the foamed resin portion, two lines are provided between the two protrusions so as to extend from each of the two protrusions. In addition to the first line as the line, a second line is provided,
The foam-molded product according to claim 19, wherein the second line extends so as to pass through end points of the two first lines.

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