阅读说明：本技术 成形体及成形体的制造方法 (Molded body and method for producing molded body ) 是由 前田茂 井上和希 于 2019-01-10 设计创作，主要内容包括：本发明的成形体的一个方案具备：树脂制的树脂层叠体,其在上下方向上层叠有多个树脂层；嵌入部件,其至少一部分埋入树脂层叠体,且材质与树脂层叠体不同；以及粘接剂制的粘接部,其粘接树脂层叠体和嵌入部件。树脂层叠体具有容纳嵌入部件的至少一部分的容纳部。容纳部具有位于嵌入部件的下侧的下侧部分和位于嵌入部件的上侧的上侧部分。嵌入部件的至少一部分位于下侧部分与上侧部分的上下方向之间。粘接部位于容纳部的内侧的面的至少一部分与嵌入部件之间。(One aspect of the molded article of the present invention includes: a resin laminate body made of resin, in which a plurality of resin layers are laminated in the vertical direction; an insert member at least a part of which is embedded in the resin laminate and which is made of a material different from that of the resin laminate; and an adhesive part made of an adhesive for bonding the resin laminate and the insert member. The resin laminate has a housing portion that houses at least a part of the insert member. The accommodating portion has a lower side portion located on a lower side of the insert member and an upper side portion located on an upper side of the insert member. At least a part of the insert member is positioned between the lower portion and the upper portion in the vertical direction. The adhesive portion is located between at least a part of the inner surface of the accommodating portion and the insert member.)

1. A molded body, comprising:

a resin laminate body made of resin, in which a plurality of resin layers are laminated in the vertical direction;

an insertion member at least partially embedded in the resin laminate and made of a material different from that of the resin laminate; and

an adhesive part made of an adhesive for bonding the resin laminate and the insert member,

the resin laminate body has a housing portion that houses at least a part of the insert member,

the accommodating portion has:

a lower portion located on a lower side of the insert member; and

an upper portion located on an upper side of the insert part,

at least a part of the insert member is located between the lower portion and the upper portion in the up-down direction,

the adhesive portion is located between the insert member and at least a part of an inner surface of the accommodating portion.

2. The shaped body according to claim 1,

the adhesive portion includes a first adhesive portion between the insert member and a side surface of the inside surface of the accommodating portion in a direction orthogonal to the vertical direction.

3. The shaped body according to claim 2,

the resin laminate has a contact portion that directly contacts a side surface of the outer surface of the insert member in a direction orthogonal to the vertical direction without passing through the adhesive portion,

the contact portion is located on the upper side of the first bonding portion.

4. The shaped body as claimed in any of claims 1 to 3,

the adhesive portion has a second adhesive portion between a portion of the inner surface of the housing portion that is located below the insert member and a surface of the lower side of the insert member.

5. The shaped body according to claim 4,

the receiving portion has a groove recessed from an inner side of the receiving portion toward a lower side,

the tank has:

a portion located outside a lower surface of the insert member as viewed in a vertical direction; and

a part overlapping with the lower surface of the insert member when viewed in the vertical direction,

the second bonding portion is located inside the groove.

6. The shaped body as claimed in any of claims 1 to 5,

the inner surface of the receiving portion has a contact surface that is in direct contact with the lower surface of the insert member without passing through the adhesive portion.

7. The shaped body as claimed in any of claims 1 to 6,

the insert member is made of metal.

8. A method for producing a molded body, the molded body comprising:

a resin laminate body made of resin, in which a plurality of resin layers are laminated in the vertical direction; and

an insert member at least partially embedded in the resin laminate and made of a material different from that of the resin laminate,

the method for manufacturing the molded body is characterized by comprising the following steps:

a first molding step of molding a first laminated portion having a recess recessed downward by laminating the resin layers in an up-down direction;

a bonding step of disposing the insert member in the recess and bonding the inner surface of the recess and the insert member with an adhesive; and

and a second molding step of molding a second laminated portion at least a part of which is disposed above the insert member by laminating the resin layer on the first laminated portion.

9. The method for producing a shaped body according to claim 8, wherein,

in the bonding step, uncured adhesive is injected into a gap between the side surface of the inner surface of the recess portion, which is located in a direction orthogonal to the vertical direction, and the insert member.

10. The method for producing a shaped body according to claim 9, wherein,

in the bonding step, an upper surface of the injected adhesive is positioned below an upper surface of the first stacked part.

11. The method for producing a shaped body according to any one of claims 8 to 10,

in the bonding step, an uncured adhesive is injected between the bottom surface of the recess and the lower surface of the insert member.

12. The method for producing a shaped body according to claim 11,

the first lamination portion has a groove recessed from a bottom surface of the recess toward a lower side,

in the bonding step, the insertion member is disposed at a position where a side surface of a surface of the recess portion, the side surface being positioned in a direction orthogonal to a vertical direction, is open to the gap of the insertion member, and the other portion of the groove is opposed to a lower surface of the insertion member,

the uncured adhesive is injected into the groove from a gap between the side surface of the inner surface of the recess, which is located in a direction orthogonal to the vertical direction, and the insert member.

13. The method for producing a shaped body according to any one of claims 8 to 12,

in the bonding step, uncured adhesive is injected into a gap between the inner surface of the recess and the insert member while the insert member is in contact with the bottom surface of the recess.

14. The method of manufacturing a shaped body according to any one of claims 8 to 13,

the insert member is made of metal.

Technical Field

The present invention relates to a molded body and a method for producing a molded body.

Background

A composite molded article of a different material is known, in which an insert member is inserted into a resin molded article formed of a resin. For example, Japanese patent application laid-open No. 8-11218 discloses a composite molded article of different materials, which is obtained by molding a resin molded article by a stereolithography apparatus.

Disclosure of Invention

Technical problem to be solved by the invention

The composite molded article of different materials as described above is manufactured by molding a primary molded article having a concave portion, disposing an insert member in the concave portion of the primary molded article, and then molding a secondary molded article on the primary molded article. In this case, after molding, the resin may shrink to form a gap between the insert member and the resin molded body. Therefore, the insert member may move relative to the resin molded body, and the position of the insert member may be displaced.

In view of the above, an object of the present invention is to provide a molded body capable of suppressing the position of an insert member from shifting with respect to a resin laminate, and a method for manufacturing the molded body capable of suppressing the position of the insert member from shifting with respect to the resin laminate.

Means for solving the problems

One aspect of the molded article of the present invention includes: a resin laminate body made of resin, in which a plurality of resin layers are laminated in the vertical direction; an insertion member at least partially embedded in the resin laminate and made of a material different from that of the resin laminate; and an adhesive part made of an adhesive for bonding the resin laminate and the insert member. The resin laminate has a housing portion that houses at least a part of the insert member. The accommodating portion has: a lower portion located on a lower side of the insert member; and an upper portion located on an upper side of the insertion part. At least a part of the insert member is located between the lower portion and the upper portion in the vertical direction. The adhesive portion is located between the insert member and at least a part of an inner surface of the accommodating portion.

One aspect of the method for manufacturing a molded article according to the present invention is a method for manufacturing a molded article including a resin laminate and an insert member, the resin laminate having a plurality of resin layers laminated in a vertical direction, the insert member being at least partially embedded in the resin laminate and having a material different from that of the resin laminate, the method for manufacturing a molded article including: a first molding step of molding a first laminated portion having a recess recessed downward by laminating the resin layers in an up-down direction; a bonding step of disposing the insert member in the recess and bonding the inner surface of the recess and the insert member with an adhesive; and a second molding step of molding a second laminated portion at least a part of which is disposed above the insert member by laminating the resin layer on the first laminated portion.

Effects of the invention

According to an aspect of the present invention, there can be provided a molded body capable of suppressing the position of the insert member from shifting with respect to the resin laminate, and a method for manufacturing the molded body capable of suppressing the position of the insert member from shifting with respect to the resin laminate.

Drawings

Fig. 1 is a sectional view showing a molded body of the present embodiment.

FIG. 2 is a view showing the molded article of the present embodiment, and is a sectional view taken along line II-II in FIG. 1.

Fig. 3 is a flowchart showing the procedure of the method for manufacturing a molded body according to the present embodiment.

Fig. 4 is a sectional view showing a first molding step of the method for producing a molded body according to the present embodiment.

Fig. 5 is a sectional view showing a bonding step in the method for producing a molded body according to the present embodiment.

Fig. 6 is a sectional view showing a bonding step in the method for producing a molded body according to the present embodiment.

Fig. 7 is a sectional view showing a second molding step of the method for producing a molded body according to the present embodiment.

Detailed Description

The Z-axis direction appropriately shown in each figure is a vertical direction in which the positive side is an upper side and the negative side is a lower side. The vertical direction, the upper side, and the lower side are only names for describing the relative positional relationship of the respective portions, and the actual arrangement relationship may be an arrangement relationship other than the arrangement relationship indicated by these names.

As shown in fig. 1, the molded body 10 of the present embodiment includes an insert member 30, a resin laminate 20 made of resin, and an adhesive portion 40. At least a part of the insert member 30 is embedded in the resin laminate 20. In the present embodiment, the entire insert member 30 is embedded in the resin laminate 20. The insert member 30 has a rectangular parallelepiped shape, for example. The lower surface 31 as the lower surface of the insert member 30 and the upper surface 32 as the upper surface of the insert member 30 are flat surfaces perpendicular to the vertical direction. The material of the insert member 30 is different from that of the resin laminate 20. In the present embodiment, the insert member 30 is made of metal. Therefore, the strength and weight of the molded body 10 can be improved.

The resin laminate 20 is formed by laminating a plurality of resin layers in the vertical direction. In the present embodiment, the resin laminate 20 is molded by, for example, a 3D printer. The kind of the resin constituting the resin laminate 20 is not particularly limited. The resin laminate 20 has a housing portion 50. The receiving portion 50 receives at least a portion of the insert member 30. In the present embodiment, the accommodating portion 50 accommodates the entire insert member 30.

The accommodating portion 50 has a lower side portion 50a, an upper side portion 50b, and a peripheral wall portion 50 c. The lower portion 50a is a portion located on the lower side of the insert member 30. The upper portion 50b is a portion located on the upper side of the embedded part 30. The lower portion 50a and the upper portion 50b sandwich at least a part of the insertion member 30 in the up-down direction. That is, at least a part of the insert member 30 is located between the lower portion 50a and the upper portion 50b in the vertical direction. As shown in fig. 2, the peripheral wall portion 50c has a rectangular frame shape surrounding the insertion member 30 as viewed in the up-down direction. The peripheral wall portion 50c connects the lower side portion 50a and the upper side portion 50 b.

As shown in fig. 1, the peripheral wall portion 50c has the contact portion 23. That is, the resin laminate 20 has the contact portion 23. The contact portion 23 is a portion that directly contacts the side surface 33, which is located in the direction orthogonal to the vertical direction, of the outer surface of the insert member 30 without passing through the adhesive portion 40. The contact portion 23 has a rectangular frame shape surrounding the insert member 30 when viewed in the vertical direction. The contact portion 23 is an upper end portion in the peripheral wall portion 50 c.

The inner surface of the housing portion 50 has a contact surface 52 that is in direct contact with the lower surface 31 of the insert member 30 without the adhesive portion 40. The contact surface 52 is a part of the bottom surface located on the lower side of the inner surface of the accommodating portion 50. The contact surface 52 is a flat surface perpendicular to the vertical direction. The contact surface 52 is rectangular. The contact surface 52 is located inward of the outer shape of the insert member 30 as viewed in the vertical direction.

The accommodating portion 50 has a groove 53 recessed from the inner side of the accommodating portion 50 toward the lower side. The groove 53 is provided in an outer edge portion on a bottom surface located on a lower side among surfaces on an inner side of the accommodating portion 50. The groove 53 is recessed downward from the contact surface 52. As shown in fig. 2, the groove 53 has a rectangular frame shape when viewed in the vertical direction. The groove 53 surrounds the contact surface 52, viewed in the up-down direction. The bottom surface of the groove 53 is a part of the bottom surface located on the lower side of the inner surface of the housing 50. As shown in fig. 1, the groove 53 has a portion 53a located outside the lower surface 31 of the insert member 30 as viewed in the vertical direction and a portion 53b overlapping the lower surface 31 of the insert member 30 as viewed in the vertical direction.

In the present embodiment, the resin laminate 20 is composed of a first laminate section 21 and a second laminate section 22. The first laminated part 21 and the second laminated part 22 are formed in different steps. The first laminated portion 21 is a lower portion of the resin laminated body 20. As shown by the two-dot chain line in fig. 1, the upper end of the first laminated portion 21 is located at the same position as the upper surface 32 of the insert member 30 in the vertical direction, for example. The first lamination portion 21 includes the lower side portion 50a and a portion other than the contact portion 23 in the peripheral wall portion 50 c. The second laminated portion 22 is an upper portion of the resin laminated body 20. The second laminated portion 22 is laminated on the upper side of the first laminated portion 21. The second laminated portion 22 includes the upper side portion 50b and the contact portion 23 in the peripheral wall portion 50 c.

The adhesive portion 40 is made of an adhesive. The adhesive agent constituting the adhesive portion 40 is not particularly limited as long as it can bond the resin laminate 20 and the insert member 30. The adhesive constituting the adhesive portion 40 is, for example, an anaerobic adhesive.

At least a portion of the adhesive part 40 is located inside the receiving part 50. In the present embodiment, the entire adhesive portion 40 is located inside the housing portion 50. More specifically, the adhesive portion 40 is located between at least a part of the inner surface of the accommodating portion 50 and the insert member 30. Thus, the adhesive portion 40 can adhere the insert member 30 to the housing portion 50, and can adhere the resin laminate 20 and the insert member 30.

Therefore, according to the present embodiment, even when the resin constituting the resin laminate 20 shrinks and a gap is generated, the insert member 30 is bonded to the resin laminate 20 by the adhesive section 40, and thus the insert member 30 can be prevented from moving relative to the resin laminate 20. Thus, according to the present embodiment, the molded body 10 in which the position of the insert member 30 can be suppressed from shifting with respect to the resin laminated body 20 can be obtained.

In the present embodiment, the adhesive portion 40 is filled in the entire portion of the accommodating portion 50 except for the portion where the insert member 30 is located. The adhesive portion 40 includes a first adhesive portion 41 and a second adhesive portion 42. The first adhesive portion 41 is located between the side surface 51, which is located in the direction orthogonal to the vertical direction, of the inner surfaces of the accommodating portion 50 and the insert member 30. The first adhesive portion 41 is in contact with the side surface 51 and the side surface 33. The first adhesive portion 41 adheres the side surface 51 and the side surface 33.

In the present embodiment, the side surfaces 51 include a pair of side surfaces 51 that are disposed on both sides of the insert member 30 in a first direction orthogonal to the vertical direction and are orthogonal to the first direction, and a pair of side surfaces 51 that are disposed on both sides of the insert member 30 in a second direction orthogonal to both the vertical direction and the first direction and are orthogonal to the second direction.

The contact portion 23 is located above the first adhesive portion 41. The upper end of the first adhesive portion 41 contacts the lower end of the contact portion 23. The first adhesive portion 41 adheres the contact portion 23 and the insert member 30. As shown in fig. 1 and 2, the first adhesive portion 41 has a cylindrical shape surrounding the periphery of the insert member 30. In the present embodiment, the first adhesive portion 41 has a rectangular frame shape as viewed in the vertical direction.

As shown in fig. 1, the second adhesive portion 42 is located between a portion of the inner surface of the accommodating portion 50 located below the insert member 30 and the lower surface 31 of the insert member 30. More specifically, the second adhesive portion 42 is located between a portion of the bottom surface of the groove 53 located below the insert member 30 and the lower surface 31 in the vertical direction. That is, the second adhesive portion 42 is located between the bottom surface of the portion 53b and the lower surface 31. The second adhesive portion 42 contacts the bottom surface of the groove 53 and the lower surface 31. The second adhesive portion 42 adheres the bottom surface of the groove 53 and the lower surface 31. The second adhesive portion 42 is located inside the groove 53. In the present embodiment, the second adhesive portion 42 is filled in the entire inside of the groove 53. The outer edge of the second adhesive portion 42 is continuous with the lower end of the first adhesive portion 41.

According to the present embodiment, since the adhesive section 40 includes the first adhesive section 41 and the second adhesive section 42, the insert member 30 can be more firmly adhered to the resin laminate 20. This can further suppress the position of the insert member 30 from shifting with respect to the resin laminate 20.

The molded body 10 of the present embodiment is manufactured using, for example, a 3D printer of an inkjet system. As shown in fig. 3, the method of manufacturing the molded body 10 of the present embodiment includes a first molding step S1, a bonding step S2, and a second molding step S3. As shown in fig. 4, the first forming step S1 is a step of laminating the resin layers 20a in the vertical direction to form the first laminated part 21 shown in fig. 5.

As shown in fig. 5, the first laminated portion 21 has a groove 53 and a recess 60 recessed downward. The groove 53 is recessed from the bottom surface of the recess 60 to the lower side. The inner surface of the recess 60 constitutes a part of the inner surface of the housing 50. The inner surface of the recess 60 includes the side surface 51, the contact surface 52, and the inner surface of the groove 53. The side surface 51 is a surface located in a direction orthogonal to the vertical direction, among surfaces inside the recess 60.

As shown in fig. 4, in the first forming step S1, the operator moves the inkjet head IH of the 3D printer in a direction orthogonal to the vertical direction to produce the resin layer 20 a. First, the operator applies an uncured resin from the nozzle N of the inkjet head IH and moves the inkjet head IH to the right side of fig. 4 to produce an uncured resin layer 20 b. Then, as shown in fig. 4, the operator moves the inkjet head IH to the left side of fig. 4, flattens the uncured resin layer 20b by the roller R, and irradiates the ultraviolet light UV from the irradiation section L to cure the uncured resin layer 20 b. Thereby, the resin layer 20a is produced. The operator repeats the above steps to produce a plurality of resin layers 20a stacked in the vertical direction, and forms the first stacked part 21.

The bonding step S2 is a step of disposing the insert member 30 in the recess 60 and bonding the inner surface of the recess 60 and the insert member 30 with the adhesive 70. As shown in fig. 3, the bonding process S2 includes an insertion member arranging process S2a and an adhesive injection process S2 b.

In the insert member arranging step S2a, the worker inserts the insert member 30 into the recess 60 from above the first stacked portion 21 as shown in fig. 5. As shown in fig. 6, the worker places the insert member 30 by bringing the lower surface 31 of the insert member 30 into contact with the contact surface 52 and separating the side surface 33 of the insert member 30 from the side surface 51 of the recess 60. That is, a gap is provided between the side surface 51 and the disposed insert member 30. Thus, when the insert member 30 is disposed in the concave portion 60, air can be prevented from being trapped between the contact surface 52 of the insert member 30, and the insert member 30 can be prevented from floating upward.

In the insert member disposing step S2a, the worker disposes the insert member 30 at a position where a part of the groove 53 opens into the gap between the side surface 51 and the insert member 30 and the other part of the groove 53 faces the lower surface 31 of the insert member 30. In the present embodiment, the outer edge of the groove 53 opens into the gap between the side surface 51 and the insert member 30, and the inner edge of the groove 53 faces the lower surface 31 of the insert member 30. A gap is provided between the bottom surface of the inner edge portion of the groove 53 and the lower surface 31. By disposing the insert member 30 in this manner, the groove 53 can be prevented from being sealed by the insert member 30. Therefore, the uncured adhesive 70 can be injected into the groove 53. In the present embodiment, the upper surface 32 of the fitting member 30 and the upper surface of the first laminated portion 21 are disposed on the same plane orthogonal to the vertical direction, for example.

In the adhesive injection step S2b, the worker injects the uncured adhesive 70 from the gap between the upper lateral side surface 51 of the recess 60 and the insert member 30. The injection of the uncured adhesive 70 is performed, for example, using a dispenser D. The uncured adhesive 70 injected into the gap between the side surface 51 and the insert member 30 flows into the groove 53 from the gap between the side surface 51 and the insert member 30. Thus, in the bonding step S2, the worker injects the uncured adhesive 70 into the groove 53 from between the side surface 51 and the insert member 30.

The uncured adhesive 70 injected into the groove 53 flows into the groove 53 to the lower side of the lower surface 31 of the insert member 30. Thus, in the bonding step S2, the worker injects the uncured adhesive 70 into the gap between the bottom surface of the recess 60 and the lower surface 31 of the insertion member 30. As shown in fig. 7, the injected uncured adhesive 70 is cured to become the bonded portion 40. Thereby, the adhesive portion 40 is produced.

Here, in the adhesive injection step S2b, the operator injects the uncured adhesive 70 to a position below the upper surface of the first laminated portion 21. That is, in the bonding step S2, the upper surface of the injected adhesive 70 is positioned below the upper surface of the first laminated part 21. Thus, as shown in fig. 7, a gap G is provided above the injected adhesive 70 or the bonding portion 40 formed by curing the adhesive 70.

The second forming step S3 is a step of laminating the resin layer 20a on the first laminated part 21 and forming the second laminated part 22 at least a part of which is disposed on the upper side of the insert member 30. The operator moves the inkjet head IH in a direction orthogonal to the vertical direction to create the resin layer 20a and form the second stacked part 22, similarly to the first forming step S1. At this time, the uncured resin also flows into the gap G. The uncured resin that has flowed into the gap G is cured to become the contact portion 23. Through the above steps, the resin laminate 20 is produced, and the molded body 10 is produced.

According to the present embodiment, since the insert member 30 is bonded to the first laminated portion 21 in the bonding step S2, it is possible to suppress positional displacement of the insert member 30 inserted into the recess 60 before the second forming step S3 is performed or when the second forming step S3 is performed. This can suppress the position of the insert member 30 from shifting relative to the resin laminate 20.

Further, the fitting member 30 inserted into the concave portion 60 can be prevented from protruding above the first stacked portion 21 due to floating up or the like. Therefore, when the resin layer 20a laminated on the upper side of the first laminated portion 21 is produced in the second forming step S3, distortion in the shape of the resin layer 20a can be suppressed. Accordingly, the molding accuracy of the resin laminate 20 can be improved, and the molding accuracy of the molded body 10 can be improved.

In particular, when the molded body 10 is manufactured using an inkjet 3D printer as in the present embodiment, if the insert member 30 protrudes above the first lamination portion 21, the inkjet head IH may interfere with the insert member 30 and the resin layer 20a may not be manufactured. Therefore, the above-described effect of being able to suppress the protrusion of the insert member 30 to the upper side of the first stacked portion 21 is particularly useful when the molded body 10 is molded using an inkjet 3D printer. The case where the insert member 30 inserted into the concave portion 60 floats upward or the like means a case where the concave portion 60 is smaller than the insert member 30 and the insert member 30 is press-fitted into the concave portion 60.

In addition, according to the present embodiment, the adhesive portion 40 has the first adhesive portion 41 disposed between the side surface 51 and the insert member 30. Therefore, as described above, when injecting the uncured adhesive 70, a method of injecting the uncured adhesive 70 from the gap between the upper side surface 51 of the recess 60 of the first laminated part 21 and the insert member 30 can be adopted. That is, even after the insertion member 30 is disposed in the recess 60, an injection port for injecting the adhesive 70 into the recess 60 can be provided. This facilitates injection of the adhesive 70.

For example, when the adhesive 70 is injected to the same position as the upper surface of the first laminated portion 21 in the vertical direction, if the second forming step S3 is performed in a state where the upper end portion of the adhesive 70 is uncured, the upper end portion of the adhesive 70 may be deformed to protrude above the first laminated portion 21. Further, the adhesive 70 may protrude from the concave portion 60 and adhere to the upper surface of the first laminated portion 21. Therefore, the molding accuracy of the resin layer 20a laminated on the upper side of the adhesive 70 may be lowered.

In contrast, according to the present embodiment, in the bonding step S2, the upper surface of the injected adhesive 70 is positioned below the upper surface of the first laminated part 21. Therefore, even if the second forming step S3 is performed without curing the upper end portion of the injected adhesive 70, the upper end portion of the adhesive 70 can be prevented from protruding above the first stacked portion 21. Further, the uncured adhesive 70 can be prevented from flowing out of the concave portion 60 in the bonding step S2. This can suppress a decrease in the molding accuracy of the resin layer 20a in the second molding step S3, and can suppress a decrease in the molding accuracy of the molded article 10. In addition, by adopting such a method, the resin flows into the gap G in the second molding step S3, and the contact portion 23 that directly contacts the side surface 33 of the insert member 30 without passing through the adhesive portion 40 is provided above the first adhesive portion 41.

For example, after the uncured adhesive 70 is applied to the bottom surface of the recess 60, the insert member 30 may be inserted into the recess 60 from above the applied adhesive 70, and the insert member 30 may be bonded to the bottom surface of the recess 60 with the adhesive 70. However, in this case, since the insert member 30 is positioned with respect to the first laminated portion 21 via the uncured adhesive 70, it may be difficult to position the insert member 30 with high accuracy. In addition, the position of the insert member 30 may shift until the adhesive 70 is cured. In this case, the position of the fitting member 30 may be shifted and may protrude above the first laminated portion 21. Therefore, the molding accuracy of the resin layer 20a in the second molding step S3 may be degraded, and the molding accuracy of the molded article 10 may be degraded.

In contrast, according to the present embodiment, in the bonding step S2, the worker injects the uncured adhesive 70 into the gap between the surface inside the recess 60 and the insert member 30 while bringing the insert member 30 into contact with the contact surface 52 that is the bottom surface of the recess 60. Therefore, the insert member 30 can be positioned with high accuracy with respect to the first laminated portion 21. Further, since the adhesive 70 is injected after the insert member 30 is brought into contact with the contact surface 52, the adhesive 70 can be prevented from entering between the insert member 30 and the contact surface 52, and the positional displacement of the insert member 30 can be prevented. This can suppress the position of the insert member 30 from shifting with respect to the resin laminate 20, and can suppress a reduction in the molding accuracy of the molded body 10.

In addition, according to the present embodiment, the first laminated portion 21 is provided with the groove 53 recessed downward from the bottom surface of the recess 60. Therefore, by injecting the adhesive 70 into the groove 53, the lower surface 31 of the insert member 30 can be bonded to the first laminated portion 21 while the insert member 30 is positioned in contact with the contact surface 52 as described above. This enables the insert member 30 to be more firmly bonded to the first laminated portion 21.

The present invention is not limited to the above-described embodiments, and other configurations may be adopted. The insert member may be only partially embedded in the resin laminate. In this case, the other part of the insert member is exposed to the outside of the resin laminate. Another portion of the insert member may protrude to the outside of the resin laminate. The insert member may not be made of metal, as long as the material is different from that of the resin laminate. The insert member may be, for example, ceramic, or may be a resin different from the resin laminate. The shape of the insert member is not particularly limited. The upper surface of the insert member may be lower than the upper surface of the first stacked portion, or may be upper than the upper surface of the first stacked portion.

The resin laminate is not particularly limited as long as it is a resin-made member having a housing portion. The accommodating portion is not particularly limited as long as it accommodates at least a part of the insert member and has an upper portion and a lower portion. The receiving portion may have no groove. The groove may be provided at any position on the lower surface of the inner surface of the housing portion. The shape, width and depth of the groove are not particularly limited. The slot may not be frame-shaped. A plurality of grooves may also be provided.

The adhesive portion is not particularly limited as long as it is positioned between at least a part of the inner surface of the housing portion and the insert member and bonds the resin laminate and the insert member. The first adhesive portion may not be cylindrical. The adhesive portion may have only one of the first adhesive portion and the second adhesive portion. The adhesive portion may have a portion between a portion of the inner surface of the accommodating portion located above the insert member and the upper surface of the insert member. As the adhesive portion, a plurality of adhesive portions separated from each other may be provided. The adhesive portion may enclose the entire insert member. The adhesive portion may be disposed only in a portion of the inside of the housing portion other than the portion where the insert member is disposed.

The molded body may be molded by using a 3D printer other than the inkjet method. The bonding step is not particularly limited as long as the fitting member can be bonded to the inner surface of the recess. In the bonding step, the insertion member may be disposed in the recess after the adhesive is injected into the recess, or the insertion member coated with the adhesive may be disposed in the recess. The second molding step may be performed before the adhesive injected into the recess is cured, may be performed in a state where only a part of the adhesive injected into the recess is cured, or may be performed after the adhesive injected into the recess in the bonding step is cured.

The use of the molded article of the above embodiment is not particularly limited. In addition, the above-described structures can be appropriately combined within a range not inconsistent with each other.

Description of the symbols

10-a molded body, 20-a resin laminate, 20 a-a resin layer, 21-a first laminate, 22-a second laminate, 23-a contact, 30-an insert, 40-an adhesive, 41-a first adhesive, 42-a second adhesive, 50-a housing, 50 a-a lower part, 50 b-an upper part, 52-a contact surface, 53-a groove, 60-a recess, 70-an adhesive, S1-a first molding step, S2-an adhesive step, S3-a second molding step.