JP2024163802A - Nesting, resin molding die, molding device, and manufacturing method of resin molded product - Google Patents

Abstract

To provide an insert easily mounted onto a mold body, and capable of being evacuated, a mold for molding a resin, a molding apparatus, and a method of manufacturing a resin molded article.SOLUTION: An insert 201 mounted onto a mold body 111 is provided with an attaching/detaching member on a surface facing a molding surface 111a of the mold body 111, and attachably/detachably mounted onto the mold body 111 by the attaching/detaching member. A vacuum hole 201b is formed that communicates from a molding surface 201a of the insert 201 to a non-molding surface.SELECTED DRAWING: Figure 2

Description

This disclosure relates to a nest, a resin molding die, a molding device, and a method for manufacturing a resin molded product.

When molding resin using a mold, a nest may be used because it makes it easier to replace mold parts or to process the mold. A nest is a mold that is attached to the mold body as a separate part.

As a method of fitting a nest into a mold body, Patent Document 1 discloses a structure for attaching a nest to a recess in a movable mold in an injection molding mold having a fixed mold and a movable mold. In Patent Document 1, the nest is fastened to the bottom surface of the movable mold with a bolt. The nest is attached or removed by fastening or loosening the bolt.

JP 2008-114438 A

To use the insert disclosed in Patent Document 1, cutting work is required to fasten the bolts to the movable mold for resin molding, i.e., the mold body, which is troublesome. In addition, when using the insert disclosed in Patent Document 1 in a vacuum molding mold, it is difficult to evacuate the insert because no holes are formed in the molding surface of the insert.

The present disclosure has been made to solve the above-mentioned problems, and aims to provide a nest that can be easily attached to a mold body and that can be vacuumed, a resin molding mold, a molding device, and a method for manufacturing a resin molded product.

In order to solve the above problems and achieve the objectives, the nest according to the present disclosure is a nest that is attached to a mold body, has a detachable member on the surface of the mold body that faces the molding surface, is detachably attached to the mold body by the detachable member, and has a vacuum hole that connects from the molding surface of the nest to the non-molding surface.

The present disclosure provides a nest that can be easily attached to a mold body and that can be vacuumed, a resin molding mold, a molding device, and a method for manufacturing a resin molded product.

1A to 1D are diagrams showing types of dies according to an embodiment of the present disclosure. FIG. 1A is a conceptual diagram of a mold for vacuum forming, and FIG. 1B is an enlarged cross-sectional view of a portion enclosed by a dotted line in FIG. 2(a) is an enlarged cross-sectional view of a portion surrounded by a dotted line in FIG. 2(b), and FIG. 2(b) is another enlarged cross-sectional view of the portion surrounded by a dotted line in FIG. 2(b). 2(a) is another enlarged cross-sectional view of the portion surrounded by the dotted line in FIG. 2(b), and FIG. 2(b) is another enlarged cross-sectional view of the portion surrounded by the dotted line in FIG. 2(b). FIG. 1A is a conceptual diagram of another mold for vacuum forming; FIG. 1B is an enlarged cross-sectional view of a portion enclosed by a dotted line in FIG. 5(a) is an enlarged cross-sectional view of a portion surrounded by a dotted line in FIG. 5(b), and FIG. 5(b) is another enlarged cross-sectional view of the portion surrounded by a dotted line in FIG. 5(b). 5(a) is another enlarged cross-sectional view of the portion surrounded by the dotted line in FIG. 5(b), and FIG. 5(b) is another enlarged cross-sectional view of the portion surrounded by the dotted line in FIG. 5(b). 1A to 1E are diagrams showing the positions of the magnet and the sealing member disposed at the bottom of the nest. 10A to 10D are other views showing the positions of the magnet and the sealing member disposed at the bottom of the nest. Conceptual diagram of vacuum forming equipment 1A to 1C are diagrams showing a method for manufacturing a resin molded product using a vacuum molding device. 1A to 1C are other diagrams showing a method for manufacturing a resin molded product using a vacuum molding device.

The nest, resin molding die, molding device, and resin molding manufacturing method according to the embodiments of the present disclosure will be described in detail below with reference to the drawings. Note that the up-down direction when the molding device is installed on the floor is defined as the up-down direction in the drawings, and this direction will be used in the following description. This direction is used to explain the embodiments, and does not limit the direction when the embodiments of the present disclosure are actually used.

A resin molding die is generally constructed by attaching a small convex or concave nest to the molding surface of a concave or convex mold body. As shown in FIG. 1, the resin molding die 1 of this embodiment comprises a mold body 10 and a nest 20, and the nest 20 is attached to the molding surface 10a of the mold body 10.

There are four methods of attaching the nest 20 to the mold body 10 according to the embodiment of the present disclosure: a combination of a concave mold body 10 and a convex nest 20 as shown in FIG. 1(a) (hereinafter referred to as "Pattern 1"), a combination of a concave mold body 10 and a nest 20 that closes the recess of the mold body 10 as shown in FIG. 1(b) (hereinafter referred to as "Pattern 2"), a combination of a convex mold body 10 and a convex nest 20 as shown in FIG. 1(c) (hereinafter referred to as "Pattern 3"), and a combination of a convex mold body 10 and a nest 20 that closes the recess of the mold body 10 as shown in FIG. 1(d) (hereinafter referred to as "Pattern 4"). Using these four patterns, a resin molding mold will be described in the following embodiment.

(Embodiment)
In this embodiment, a vacuum forming die, a nest used in the vacuum forming die, a forming apparatus using the vacuum forming die, and a method for manufacturing a resin molded product using the forming apparatus will be described.

<Molding tool>
Molds used in vacuum forming include concave molds and convex molds, examples of which include the above-mentioned patterns 1 to 4. Vacuum holes are formed on the molding surface of the vacuum forming mold, and air is sucked in through the vacuum holes by drawing a vacuum with a vacuum pump or the like from a vacuum pipe attached to the mold, and a resin sheet is adsorbed onto the molding surface and molded.

In this embodiment, an example will be described in which the resin molding dies of patterns 1 and 2 are used as a vacuum molding die. FIG. 2 shows a vacuum molding die 100 of pattern 1, FIG. 2(a) shows a schematic overall view of the vacuum molding die 100, and FIG. 2(b) is a partial cross-sectional view enlarging the area surrounded by the dotted line in FIG. 2(a). The vacuum molding die 100 comprises a die body 111, a nest 201, and a vacuum pipe 300.

The mold body 111 is a mold formed in a concave shape with a hollow interior, and the molding surface 111a is formed with multiple vacuum holes 111b used during vacuum molding. In addition, a vacuum pipe 300 is connected to the mold body 111, and the inside of the mold body 111 is evacuated via the vacuum pipe 300 by a vacuum pump or the like. The mold body 111 is formed from a metal material such as prehardened steel, as-rolled steel, or stainless steel.

The nest 201 is formed in the shape of a truncated quadrangular pyramid and is hollow inside. A number of vacuum holes 201b are formed in the molding surfaces 201a, which are the top and side surfaces of the truncated quadrangular pyramid, for use during vacuum molding. The nest 201 is made of iron, aluminum alloy, or other material with good thermal conductivity. Because the mold body 111 is made of a metal material, any temperature difference between the mold body 111 and the nest 201 will affect molding accuracy. Therefore, it is recommended to use a material with good thermal conductivity.

The insert 201 is fixed to the molding surface 111a of the mold body 111 by a magnet, which is a removable member, and the structure is such that air does not leak from inside the insert 201 by a sealing member. Four examples of the method of fixing and sealing the insert 201 are shown and explained. Figures 3(a)(b) and 4(a)(b) are partial cross-sectional views enlarging the part surrounded by the dotted line in Figure 2(b). The examples shown in Figures 3(a)(b) and 4(a)(b) are examples in which a first magnet 303 is attached to the insert 201, a second magnet 304 is attached to the mold body 111 at a position opposite the first magnet 303, and a sealing member 401 is arranged outside the first magnet 303 and the second magnet 304.

The first magnet 303, which is the first magnetic body, is an annular permanent magnet attached to the bottom of the quadrangular pyramid-shaped nest 201. The mold body 111 has a mounting surface 111aa formed on a part of the molding surface 111a to mount the first magnet 303. The first magnet 303 is attached to the surface of the nest 201 that faces the mounting surface 111aa of the mold body 111. The second magnet 304, which is the second magnetic body, is an annular permanent magnet attached to the mounting surface 111aa of the mold body 111 that faces the first magnet 303. Samarium cobalt, alnico magnets, ferrite magnets, etc. are used as the permanent magnet. The permanent magnet may be a plate-shaped hard magnet or an elastic magnetic sheet. The nest 201 to which the first magnet 303 is attached has a step 201c that is the thickness of the first magnet 303 and the second magnet 304 to prevent a gap from occurring between the nest 201 and the mold body 111.

A sealing member 401 that seals between the nest 201 and the mold body 111 is arranged on the outer periphery of the first magnet 303 of the nest 201. FIG. 3 shows an example in which a sheet-shaped rubber seal is used as the sealing member 401. FIG. 3(a) shows an example in which the sealing member 401 is attached to the nest 201, and FIG. 3(b) shows an example in which the sealing member 401 is attached to the mold body 111. By using a sheet-shaped rubber seal, the sealing member 401 can be easily attached. When the first magnet 303 and the second magnet 304 are bonded, the sealing member 401 is crushed and seals between the nest 201 and the mold body 111. The sealing member 401 shown in FIG. 3(b) is a sealing member that is attached to the mold body 111 side when space for attaching the sealing member 401 on the nest 201 side cannot be secured. This sealing member 401 must be removed when the insert 201 is not in use, as the shape of the sealing member 401 will be transferred to the molded product.

Figure 4 shows another example of a sealing member, in which an O-ring is used as the sealing member 401. Figure 4(a) shows an example in which a dovetail groove 401a formed in a reverse taper shape to prevent the O-ring from coming off is formed in the nest 201, and Figure 4(b) shows an example in which the dovetail groove 401a is formed in the mold body 111. If the nest 201 is frequently detached, the sealing member 401 is easily worn out. If a sealing member 401 using an O-ring is used, it is sufficient to replace the worn O-ring. If the nest 201 is frequently detached and there is no space to attach the sealing member 401 on the nest 201 side, the dovetail groove 401a is formed on the mold body 111 side as shown in Figure 4(b). When the nest 201 is not used, the shape of the dovetail groove 401a formed in the mold body 111 is transferred to the molded product, so processing to fill the dovetail groove 401a is required.

Figure 5 shows a vacuum forming die 100 of pattern 2, where Figure 5(a) shows a schematic overall view of the vacuum forming die 100, and Figure 5(b) is a partial cross-sectional view enlarging the area surrounded by the dotted line in Figure 5(a). The vacuum forming die 100 comprises a die body 112 and a nest 202. The materials of the die body 112 and the nest 202 are the same as those of the die structure of pattern 1.

The mold body 112 is a mold formed in a concave shape, with a portion of the molding surface 112a having a concave shape. It is hollow inside, and multiple vacuum holes 112b are formed in the molding surface 112a.

The insert 202 is a plate-like member that closes the recess in the mold body 112. A number of vacuum holes 202b are formed in the molding surface 202a.

The insert 202 is fixed to the molding surface of the mold body 112 by a magnet, and a sealing member is used to prevent air from leaking from inside the insert 202. Figures 6(a)(b) and 7(a)(b) are partial cross-sectional views enlarging the area surrounded by the dotted line in Figure 5(b). The example shown in Figures 6(a)(b) and 7(a)(b) is an example in which a first magnet 305 is attached to the insert 202, a second magnet 306 is attached to the mold body 112 at a position opposite the first magnet 305, and a sealing member 402 is placed outside the first magnet 305 and the second magnet 306.

The first magnet 305 is an annular permanent magnet attached to the thickness of the plate-shaped nest 202. The second magnet 306 is an annular permanent magnet attached to the mold body 112 in a position facing the first magnet 305. The permanent magnets used are the same as the first magnet 303 and the second magnet 304. The nest 202 to which the first magnet 305 is attached has a step 202c that is the thickness of the first magnet 305 and the second magnet 306 to prevent a gap from occurring between the nest 202 and the mold body 112.

A ring-shaped sealing member 402 that seals the space between the nest 202 and the mold body 112 is disposed on the outside of the first magnet 305 of the nest 202, i.e., on the molding surface 202a side. A sheet-shaped rubber seal is used as the sealing member 402. Figure 6(a) shows an example of the sealing member 402 attached to the nest 202, and Figure 6(b) shows an example of the sealing member 402 attached to the mold body 112. By using a sheet-shaped seal, it can be easily attached to the sealing member 402.

Figure 7 shows an example in which an O-ring is used as the sealing member 402. Figure 7(a) shows an example in which a dovetail groove 402a is formed in the insert 202, and Figure 7(b) shows an example in which a dovetail groove 402a is formed in the mold body 112. When the insert 202 is frequently detached, a sealing member 402 using an O-ring is used. When the insert 202 is frequently detached and there is not enough space to attach the sealing member 402 on the insert 202 side, a dovetail groove 402a is formed on the mold body 112 side as shown in Figure 7(b).

The arrangement of the sealing member and magnet, and the shape of the magnet can be determined in a number of ways depending on where the nest is to be installed, and examples are described below using the nest 201 of the first pattern. Figures 8 and 9 are views of the nest 201 as seen from the bottom. Figures 8(a) to (e) show an example in which the sealing member 401 is arranged on the outside of the first magnet 303, and Figures 9(a) to (d) show an example in which the first magnet 303 is arranged on the outside of the sealing member 401.

In FIG. 8(a), the sealing member 401 is attached in a ring shape to the inside of the outer edge of the bottom of the nest 201. The sealing member 401 seals the nest 201 at its outer edge and prevents air from leaking out when a vacuum is drawn. A first magnet 303 is arranged inside the sealing member 401. The first magnet 303 includes a plurality of magnet units 303a. The plurality of magnet units 303a are arranged in a line intermittently along the sealing member 401. By adjusting the size and length of the magnet unit 303a, the magnetic force of the magnet can be adjusted and a magnetic force that makes it easy to attach and detach from the mold body 111 can be selected.

In FIG. 8(b), the sealing member 401 is attached in a ring shape to the inside of the outer edge of the bottom of the nest 201, similar to FIG. 8(a). The ring-shaped first magnet 303 is attached to the inside of the sealing member 401 along the sealing member 401. Since it is a single ring-shaped magnet, it is easy to attach. The magnetic force of the magnet is adjusted by selecting the magnetic force of the magnet.

In FIG. 8(c), the sealing member 401 is attached in a ring shape to the inside of the outer edge of the bottom of the nest 201, similar to FIG. 8(a). A first magnet 303 is disposed inside the sealing member 401. The first magnet 303 includes two rod-shaped magnet units 303b, and is attached in parallel along the width direction of the nest 201. The use of two rod-shaped magnet units 303b saves space for magnet installation and makes it easy to attach to the nest 201.

In FIG. 8(d), the sealing member 401 is attached in a ring shape to the inside of the outer edge of the bottom of the nest 201, similar to FIG. 8(a). The first magnet 303 includes four rod-shaped magnet units 303c. The four rod-shaped magnet units 303c are attached to the inside of the sealing member 401 in parallel along the width and height directions of the nest 201. The use of rod-shaped magnet units 303c makes it easy to attach them to the nest 201. In addition, the use of four magnet units 303c can increase the degree of adhesion between the nest 201 and the mold body 111.

In FIG. 8(e), the sealing member 401 is attached in an annular shape to the inside of the outer edge of the bottom of the nest 201, similar to FIG. 8(a). The first magnet 303 includes four circular magnet units 303d. The four magnet units 303d are attached to the four corners of the nest 201. This is advantageous when the installation space for the magnets on the underside of the nest 201 is limited.

Figure 9(a) shows an example in which an annular sealing member 401 is attached along the inside of the outer edge of the bottom of the nest 201, and a first magnet 303 including multiple magnet units 303a is attached to the outside of the sealing member 401. In this example, the positions of the first magnet 303 and sealing member 401 in Figure 8(a) are reversed.

Figure 9(b) shows an example in which an annular sealing member 401 is attached along the inside of the outer edge of the bottom of the nest 201, and a first magnet 303 including two rod-shaped magnet units 303b is attached to the outside of the sealing member 401 in parallel with the width direction of the nest 201. In this example, the positions of the first magnet 303 and sealing member 401 in Figure 8(c) are reversed.

Figure 9(c) shows an example in which an annular sealing member 401 is attached along the inside of the outer edge of the bottom of the nest 201, and a first magnet 303 including four rod-shaped magnet units 303c is attached to the outside of the sealing member 401. Two of the four rod-shaped magnet units 303c are arranged in the width direction and two in the height direction of the nest 201. In this example, the positions of the first magnet 303 and sealing member 401 in Figure 8(d) are reversed.

Figure 9(d) shows an example in which an annular sealing member 401 is attached along the inside of the outer edge of the bottom of the nest 201, and a first magnet 303 including four circular magnet units 303d is attached to the outside of the sealing member 401 at the four corners of the nest 201. This example is an example in which the positions of the first magnet 303 and sealing member 401 in Figure 8(e) are reversed.

The mounting position of the first magnet 303 and the sealing member 401 and the shape of the first magnet 303 can be selected appropriately depending on the shapes of the nest 201 and the mold body 111 and the size of the mounting space for the nest 201.

<Molding device and method for manufacturing resin molded product>
Next, a structure of a molding apparatus using the vacuum molding die 100 according to the present embodiment will be described. As shown in Fig. 10, the molding apparatus 2 using vacuum molding includes a clamp 30 for holding a resin sheet 31 to be molded, a heater 40 for heating the resin sheet 31, the vacuum molding die 100, and a table 50 for placing the vacuum molding die 100 thereon.

The resin sheet 31 to be molded is made of a thermoplastic resin such as polypropylene, polystyrene, polycarbonate, polyethylene, or nylon.

The clamp 30 holds the resin sheet 31 and is moved up and down by operating the drive source. The clamp 30 moves the resin sheet 31 in the direction of the vacuum forming die 100 (in the direction of the arrow). The resin sheet 31 placed on the vacuum forming die 100 is molded by being attracted to the vacuum forming die 100. The molding means is formed by the clamp 30, which is moved up and down, the vacuum forming die 100 in which vacuum holes 201b and 202b are formed, and the vacuum piping 300 connected to a vacuum pump.

It does not have to be the clamp 30 that moves up and down; the table 50 can also be moved up and down. Any method can be used as long as it can bring the resin sheet 31 close to the vacuum forming die 100.

Next, a method for molding a resin sheet 31 using a molding device 2 will be described with reference to Figures 11 and 12. The vacuum holes formed in the mold body 111 and the insert 201 are omitted. Figure 11 is a diagram showing a method for manufacturing a resin molded product when a resin molding mold of pattern 1 is used. Figure 12 is a diagram showing a method for manufacturing a resin molded product when a resin molding mold of pattern 3 is used.

When forming a resin sheet 31 using the vacuum forming die 100 of pattern 1, first, as shown in FIG. 11(a), the heater 40 heats the resin sheet 31 held by the clamp 30 (heating process). When the resin sheet 31 is heated, it softens and bends in a certain direction of the vacuum forming die 100 (FIG. 11(b)). The clamp 30 holding the resin sheet 31 is moved toward the vacuum forming die 100 placed on the table 50, and the resin sheet 31 is placed on the vacuum forming die 100. After that, the vacuum pump is operated, and air is sucked through the vacuum holes 111b and 201b formed in the die body 111 and the insert 201 via the vacuum piping 300, and vacuum suction is started. The resin sheet 31 is attached to the vacuum forming die 100 by vacuum suction and is formed (FIG. 11(c)) (molding process).

The molded resin sheet 31 is cooled and then released from the mold (demolding process).

When the vacuum forming die 100 of pattern 3 is used to form the resin sheet 31, as shown in Figures 12(a) to 12(c), the resin sheet 31 is formed and released in the same order as when the vacuum forming die 100 of pattern 1 is used: heating the resin sheet 31 (Figure 12(a)), softening the resin sheet 31 (Figure 12(b)), and forming the resin sheet 31 (Figure 12(c)).

In this embodiment, the nests 201 and 202 have vacuum holes 201b and 202b, so that a mold equipped with the nests can be used for vacuum molding.

According to this embodiment, the nests 201, 202 are attached to the mold bodies 111, 112 by the first magnets 303, 305 and the second magnets 304, 306, so cutting work such as forming screw holes in the mold bodies 111, 112 is not required, and they can be easily attached to the mold bodies 111, 112.

According to this embodiment, the nests 201, 202 are attached to the mold bodies 111, 112 by the first magnets 303, 305 and the second magnets 304, 306. Therefore, even if the mold bodies 111, 112 are provided with piping for temperature control, such as cooling piping, the nests 201, 202 can be freely attached to the mold bodies 111, 112 regardless of the position of the piping.

According to this embodiment, the vacuum forming die 100 is provided with sealing members 401, 402, which can prevent air from leaking from the inserts 201, 202 during vacuum forming.

In this embodiment, the sealing members 401, 402 are disposed between the inserts 201, 202 and the mold bodies 111, 112, so that when vacuum molding is performed, the resin sheet 31 can be vacuum-adsorbed without air flowing in between the inserts 201, 202 and the mold bodies 111, 112.

According to this embodiment, the nests 201 and 202 can be attached and detached freely, so the number of shapes that can be molded with one molding device 2 can be increased.

In this embodiment, the shape of the nests 201 and 202 is described as a truncated pyramid, but the shape of the nests 201 and 202 is not limited to a truncated pyramid, and various shapes such as a square prism, a truncated cone, or a hemisphere can be adopted depending on the product to be molded.

In this embodiment, the resin molding die pattern was selected from pattern 1 to pattern 4 and explained, but for resin molding dies of patterns not explained, by attaching a magnet to the nest in the same way as for the resin molding dies of the explained patterns, the nest can be attached to the die body and a resin molded product can be manufactured by the molding device.

In this embodiment, it has been described that the first magnets 303 and 305 are attached to the nests 201 and 202, and the second magnets 304 and 306 are attached to the mold bodies 111 and 112. However, the nests 201 and 202 may be attached to the mold bodies 111 and 112 by magnetic force of a magnetic body. Therefore, by attaching magnets to the nests 201 and 202 and molding the mold bodies 111 and 112 with a soft magnetic material, it is not necessary to attach magnets to the mold bodies 111 and 112. Conversely, it is also possible to attach magnets to the mold bodies 111 and 112 and mold the nests 201 and 202 with a soft magnetic material, and not to attach magnets. In other words, in order to attach the nests 201 and 202 to the mold bodies 111 and 112, it is necessary to provide a magnetic body that generates a magnetic force between the two.

In this embodiment, the method of attaching the magnet and sealing member has been described for the resin molding die of pattern 1, but for the resin molding dies of patterns 2 to 4, the nest can also be attached to the die body using various attachment methods depending on the shapes of the nest 202 and the die body 112.

In this embodiment, an example using a vacuum molding die 100 has been described, but if the vacuum holes 201b, 202b of the inserts 201, 202 are blocked, the inserts can also be used as an injection molding die.

In this embodiment, an example has been described in which the first magnets 303, 305 and the second magnets 304, 306 are used as the detachable members, but the detachable members do not have to be made of a magnetic material. Anything that can detachably attach the nests 201, 202 to the mold bodies 111, 112 may be used. For example, slits may be formed in the mold bodies 111, 112, and the nests 201, 202 may be provided with insertion members that can be inserted into the slits.

In this embodiment, the softened resin sheet 31 is molded by moving the clamp 30, but the molding method is not limited to this method. For example, an air slip method may be used in which the resin sheet is heated to soften it, then expanded with compressed air, and molded by pushing up a resin molding die from below and vacuum suction. Also, a plug assist method may be used in which the resin sheet is vacuum suctioned into a concave resin molding die, and molded by pushing from above with a plug-type auxiliary die.

Various embodiments and modifications of the present disclosure are possible without departing from the broad spirit and scope of the present disclosure. Furthermore, the above-described embodiments are intended to explain the present disclosure and do not limit the scope of the present disclosure. In other words, the scope of the present disclosure is indicated by the claims, not the embodiments. Various modifications made within the scope of the claims and the meaning of equivalent disclosures are considered to be within the scope of the present disclosure.

(Additional Note)
(Appendix 1)
A nest that is attached to a mold body,
A detachable member is provided on a surface of the mold body opposite to the molding surface,
The detachable member is detachably attached to the mold body,
A vacuum hole was formed that communicated from the molding surface of the insert to the non-molding surface.
Nested.

(Appendix 2)
The detachable member is made of a magnetic material.
The nesting described in Appendix 1.

(Appendix 3)
A mold used for resin molding,
A mold body,
A nest attached to the mold body;
and a detachable member between the mold body and the insert for detachably attaching the insert to the mold body,
A vacuum hole was formed that communicated from the molding surface of the insert to the non-molding surface.
Resin molding mold.

(Appendix 4)
The detachable member is
a first magnetic body formed on a surface of the insert facing a mounting surface of the mold body to which the insert is attached;
a second magnetic body formed on the mounting surface of the mold body at a position opposite to the first magnetic body,
The insert is attached to the mold body by a magnetic force between the first magnetic body and the second magnetic body.
4. The resin molding mold according to claim 3.

(Appendix 5)
The nest is hollow,
a sealing member disposed between the mold body and the insert and sealing the insert;
4. The resin molding mold according to claim 3.

(Appendix 6)
a heater for heating the resin sheet;
A resin molding die according to any one of appendices 3 to 5;
and a molding means for sucking gas from the vacuum hole into the heated resin sheet and molding the resin sheet using the resin molding die.
Molding equipment.

(Appendix 7)
a heating step of heating the resin sheet;
and a molding step of molding the heated resin sheet by sucking gas through the vacuum hole using a resin molding die described in any one of appendices 3 to 5.
A method for manufacturing a resin molded product.

This disclosure can be suitably used in inserts, dies, molding devices, and methods for manufacturing resin molded products used in dies for manufacturing resin molded products.

1 resin molding die, 2 molding device, 10, 111, 112 die body, 10a, 111a, 112a, 201a, 202a molding surface, 111aa mounting surface, 20, 201, 202 nest, 30 clamp, 31 resin sheet, 40 heater, 50 table, 100 vacuum molding die, 111b, 112b vacuum hole, 201b, 202b vacuum hole, 201c, 202c step, 300 vacuum piping, 303, 305 first magnet, 303a, 303b, 303c, 303d magnet unit, 304, 306 second magnet, 401, 402 sealing member, 401a, 402a dovetail groove.

Claims (7)

A nest that is attached to a mold body,
A detachable member is provided on a surface of the mold body opposite to the molding surface,
The detachable member is detachably attached to the mold body,
A vacuum hole was formed that communicated from the molding surface of the insert to the non-molding surface.
Nested. The detachable member is made of a magnetic material.
The nest according to claim 1 . A mold used for resin molding,
A mold body,
A nest attached to the mold body;
and a detachable member between the mold body and the insert for detachably attaching the insert to the mold body,
A vacuum hole was formed that communicated from the molding surface of the insert to the non-molding surface.
Resin molding mold. The detachable member is
a first magnetic body formed on a surface of the insert facing a mounting surface of the mold body to which the insert is attached;
a second magnetic body formed on the mounting surface of the mold body at a position opposite to the first magnetic body,
The insert is attached to the mold body by a magnetic force between the first magnetic body and the second magnetic body.
The resin molding die according to claim 3. The nest is hollow,
a sealing member disposed between the mold body and the insert and sealing the insert;
The resin molding die according to claim 3. a heater for heating the resin sheet;
A resin molding die according to any one of claims 3 to 5;
a molding means for sucking gas from the vacuum hole into the heated resin sheet and molding the resin sheet using the resin molding die;
A molding apparatus comprising: a heating step of heating the resin sheet;
and a molding step of molding the heated resin sheet by sucking gas through the vacuum hole using the resin molding die according to any one of claims 3 to 5.
A method for manufacturing a resin molded product.

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