Three-dimensionally molded article and method for manufacturing three-dimensionally molded article

Abstract

The invention provides a three-dimensional molded article and a method for manufacturing the three-dimensional molded article, which can be manufactured in a simpler manner, thereby reducing the manufacturing cost and simplifying the manufacturing process. The three-dimensional molded article comprises a three-dimensional molded article body and a sheet, wherein the three-dimensional molded article body is provided with a first surface, a second surface and a plurality of slits; the sheet is formed on the second surface of the three-dimensional molded object body. The three-dimensional molded article body is folded along a plurality of slits formed in the first surface to form a three-dimensional molded article, and is held in a folded state via the shape holding portion. The method for manufacturing a three-dimensional molded article includes: a first step of forming a plurality of slits on a first surface of a three-dimensional molded article body; a second step of forming a sheet on a second surface of the three-dimensional molded object body; a third step of folding the three-dimensional molded article body along the plurality of slits to constitute a three-dimensional molded article; and a fourth step of holding the three-dimensional molded body in the folded state via the shape holding unit.

Description

Technical Field

[0001] The invention relates to a three-dimensional formed object and a method for manufacturing the three-dimensional formed object. Background Art

[0002] In recent years, there are methods for manufacturing three-dimensional molded articles with three-dimensional shapes using resin materials, including methods such as cast molding or injection molding, which pour molten resin into a mold, or methods such as vacuum molding and blow molding, which heat components that have been pre-made into a specific shape to make them more easily deformed, and press them on the mold with pressure, or methods such as three-dimensional printing, which gradually accumulate molten resin. Among them, molding technology that requires the use of molds will increase production costs and production time. Although three-dimensional printing technology does not require the use of molds, it is necessary to make support members different from the main structure in order to form a three-dimensional shape, which also tends to increase material usage and production time. In this way, it is necessary to improve the structure of three-dimensional molded articles with three-dimensional shapes using resin materials and their production methods. Summary of the invention

[0003] The present invention provides a three-dimensional formed object and a method for manufacturing the three-dimensional formed object, which can be manufactured in a simpler way, thereby reducing the manufacturing cost and simplifying the manufacturing process.

[0004] The three-dimensional molded article provided by the present invention includes: a three-dimensional molded object body, which is formed by stacking a plurality of molded layers and has a first surface, a second surface opposite to the first surface, and a plurality of slits formed on the first surface; and a sheet material, which is formed on the second surface of the three-dimensional molded object body and is in close contact with the second surface, wherein the three-dimensional molded object body is folded along the plurality of slits to form a three-dimensional molded object having a three-dimensional shape, and the three-dimensional molded object body is maintained in a folded state via a shape maintaining portion.

[0005] In one embodiment of the present invention, the shape maintaining portion includes a groove formed on the first surface of the three-dimensional molded object body, and a wire inserted into the groove, so as to maintain the three-dimensional molded object body in a folded state.

[0006] In one embodiment of the present invention, the plurality of slits are connected to each other to form a plurality of triangular structures on the first surface of the three-dimensional formed object body, and one of the plurality of slits is formed as one side of one of the triangular structures.

[0007] The method for making a three-dimensional molded object provided by the present invention includes: a first step of forming a plurality of slits on a first surface of a three-dimensional molded object body formed by stacking a plurality of molded layers; a second step of forming a sheet in close contact with a second surface of the three-dimensional molded object body opposite to the first surface; a third step of folding the three-dimensional molded object body along the plurality of slits to form a three-dimensional molded object having a three-dimensional shape; and a fourth step of maintaining the three-dimensional molded object body in a folded state via a shape maintaining portion.

[0008] In one embodiment of the present invention, in the first step, a groove serving as the shape retaining portion is further formed on the first surface of the three-dimensional molded object body, and in the fourth step, a wire serving as the shape retaining portion is inserted into the groove to maintain the three-dimensional molded object body in a folded state.

[0009] In one embodiment of the present invention, in the first step, the plurality of slits are further connected to form a plurality of triangular structures on the first surface of the three-dimensional formed object body, and one of the plurality of slits is formed as one side of one of the triangular structures.

[0010] Based on the above, in the three-dimensional formed article and the method for making the three-dimensional formed article of the present invention, a plurality of slits are formed on the first surface of the three-dimensional formed article body, and the sheet is formed in close contact on the second surface of the three-dimensional formed article body. Furthermore, the three-dimensional formed article body is folded along the plurality of slits to form a three-dimensional formed article having a three-dimensional shape, and the three-dimensional formed article body is maintained in a folded state via a shape retaining portion. In this way, the three-dimensional shape of the three-dimensional formed article is designed on a plane, and after the three-dimensional formed article body is stacked and formed, it is assembled via folding to form a three-dimensional formed article having a three-dimensional shape, without the need to use structures such as molds or support parts, thereby reducing the production cost and simplifying the production process. Accordingly, the three-dimensional formed article and the method for making the three-dimensional formed article of the present invention can be produced in a simpler manner, thereby reducing the production cost and simplifying the production process.

[0011] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional schematic diagram of a three-dimensional formed article according to an embodiment of the present invention;

[0013] Figure 2 yes Figure 1 A schematic plan view of the three-dimensional formed object after unfolding;

[0014] Figure 3 yes Figure 2 The three-dimensional formed object is shown as a partially enlarged schematic diagram in area R;

[0015] Figure 4 yes Figure 3 A schematic cross-sectional view of the three-dimensional formed article shown at the II' cross section;

[0016] Figure 5 yes Figure 1 A schematic diagram of a process for producing a three-dimensional formed object is shown;

[0017] Figure 6 yes Figure 1 The three-dimensional schematic diagram of the three-dimensional formed object shown in other modified examples.

[0018] Description of reference numerals:

[0019] 100, 100A: three-dimensional formed objects;

[0020] 110, 110A: three-dimensional formed object body;

[0021] 112: forming layer;

[0022] 114: Slit;

[0023] 116: Triangular structure;

[0024] 120, 120A: Sheet;

[0025] 130, 130A: shape retaining portion;

[0026] 132: Groove;

[0027] 134: Wire;

[0028] S01: first step;

[0029] S02: second step;

[0030] S03: the third step;

[0031] S04: the fourth step;

[0032] S1: first surface;

[0033] S2: second surface;

[0034] S3: Lateral surface. DETAILED DESCRIPTION

[0035] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Figure 1 is a three-dimensional schematic diagram of a three-dimensional formed object according to an embodiment of the present invention, Figure 2yes Figure 1 The schematic plan view of the unfolded three-dimensional object shown, Figure 3 yes Figure 2 The three-dimensional formed object is shown in a partially enlarged schematic diagram in area R, Figure 4 yes Figure 3 A schematic cross-sectional view of the three-dimensional shaped article at the II' cross section is shown, Figure 5 yes Figure 1 The schematic diagram of the process of manufacturing the three-dimensional formed object shown in FIG. Figure 6 yes Figure 1 The three-dimensional shaped object shown is a three-dimensional schematic diagram in other variations. Figures 1 to 5 The specific structure and manufacturing method of the three-dimensional formed object 100 of this embodiment are described, and the Figure 6 The three-dimensional formed article 100A in other modified examples are described, but these are only some examples of the present invention and the present invention is not limited thereto.

[0036] In this embodiment, if Figures 1 to 4 As shown, the three-dimensional formed article 100 includes a three-dimensional formed article body 110 and a sheet 120. The three-dimensional formed article body 110 is formed by stacking a plurality of formed layers 112 (eg, Figure 4 ), and has a first surface S1, a second surface S2 opposite to the first surface S1, and a plurality of non-through slits 114 formed on the first surface S1. Accordingly, the sheet 120 is formed on the second surface S2 of the three-dimensional formed object body 110 and is in close contact with the second surface S2. The three-dimensional formed object body 110 is folded along the plurality of slits 114 to form a three-dimensional formed article 100 having a three-dimensional shape (for example, from Figure 2 The expanded state changes to Figure 1 The three-dimensional molded object body 110 is maintained in a folded state via the shape maintaining portion 130.

[0037] Specifically, in this embodiment, if Figure 1 As shown, the three-dimensional formed object 100 refers to an object having a three-dimensional shape produced by a forming process. The three-dimensional formed object body 110 as the main structure of the three-dimensional formed object 100 is formed by stacking a plurality of forming layers 112 using a technology such as three-dimensional printing (not limited thereto). Figures 2 to 4 As shown in FIG. 1 , the three-dimensional formed object body 110 is constituted as a substantially sheet-shaped component. Figure 4Only the top and bottom molding layers 112 of the multiple molding layers 112 are shown, but the number and thickness of the molding layers 112 can be adjusted according to needs. In addition, the first surface S1 (i.e., the surface of the top molding layer 112) of the three-dimensional molding body 110 is formed with a plurality of slits 114. Figure 4 The depth of the slits 114 shown is less than the thickness of a single molded layer 112, but it can also be formed through multiple molded layers 112. As long as the slits 114 are formed on the first surface S1 of the three-dimensional molded object body 110, the size (e.g., width, depth) of the slits 114 can be adjusted according to the desired folding degree (i.e., the desired three-dimensional shape). In this way, the three-dimensional molded object body 110 can be formed into a three-dimensional molded article 100 having a three-dimensional shape (e.g., from the first surface S1 of the three-dimensional molded object body 110). Figure 2 The expanded state changes to Figure 1 ), and the slits 114 are located inside the folded three-dimensional formed object 100.

[0038] Furthermore, in this embodiment, if Figure 4 As shown, the sheet 120 is formed by close contact with the second surface S2 of the three-dimensional molded body 110 (i.e., the surface of the molding layer 112 at the bottom). For example, the sheet 120 can be attached to the second surface S2 of the three-dimensional molded body 110 through a vacuum molding process (but not limited to this). In addition, the outer side surface S3 of the sheet 120 opposite to the second surface S2 can be provided with a pattern to form a decorative pattern (not shown), or at least the outer side surface S3 of the sheet 120 can have a desired color to form a decorative color, but not limited to this. Furthermore, Figure 3 and Figure 4 The sheet 120 shown protrudes from the left and right sides of the multiple molding layers 112 of the three-dimensional molded object body 110, so as to cover the edge joints of the three-dimensional molded object body 110 when the three-dimensional molded object body 110 is subsequently folded, but the sheet 120 is not limited to completely covering the second surface S2 of the three-dimensional molded object body 110, and it can be adjusted according to needs. In this way, after the three-dimensional molded object body 110 is folded to form the three-dimensional molded object 100, the sheet 120 is located outside the folded three-dimensional molded object 100 to form a decorative layer, and displays its decorative pattern or decorative color toward the outside. In addition, since the sheet 120 is in close contact with the second surface S2 of the three-dimensional molded object body 110, the decorative pattern (if any) on the sheet 120 will not be misplaced and stretched and deformed when the three-dimensional molded object body 110 is folded.

[0039] In addition, in this embodiment, if Figure 3As shown, the three-dimensional molded object body 110 is maintained in a folded state via the shape retaining portion 130. The shape retaining portion 130 refers to a structure that can maintain the three-dimensional shape of the three-dimensional molded object 100 (i.e., maintain it in a folded state) after the three-dimensional molded object body 110 is folded to form the three-dimensional molded object 100. The specific implementation is described later. The shape retaining portion 130 is, for example, a structure that can maintain the three-dimensional shape of the three-dimensional molded object 100 when the three-dimensional molded object body 110 is in an unfolded state (i.e., Figure 2 and Figure 3 The shape retaining portion 130 is disposed or formed on the first surface S1 of the three-dimensional formed object body 110 in a state of being formed in the three-dimensional formed object body 110, or is disposed or formed on the first surface S1 of the three-dimensional formed object body 110 during the folding process of the three-dimensional formed object body 110. However, the present invention does not limit the specific structure and implementation of the shape retaining portion 130, as long as it can retain the folded three-dimensional formed object 100. In this way, even if the three-dimensional formed object 100 uses the stacked three-dimensional formed object body 110 and is assembled by folding to form a three-dimensional formed object 100 having a three-dimensional shape, a good forming effect can be achieved.

[0040] Please refer to Figure 5 In this embodiment, the method for manufacturing a three-dimensional molded object 100 includes the following process. First, in a first step S01, a plurality of slits 114 are formed on a first surface S1 of a three-dimensional molded object body 110 formed by stacking a plurality of molding layers 112. In a second step S02, a sheet 120 is formed on a second surface S2 of the three-dimensional molded object body 110 opposite to the first surface S1 to closely contact the second surface S2. In a third step S03, the three-dimensional molded object body 110 is folded along the plurality of slits 114 to form a three-dimensional molded object 100 having a three-dimensional shape. In a fourth step S04, the three-dimensional molded object body 110 is maintained in a folded state via a shape retaining portion 130. The specific structure and manufacturing method of each component of the three-dimensional molded object 100 can refer to the above description, and will not be elaborated here.

[0041] It can be seen that in the three-dimensional formed object 100 and the method for manufacturing the three-dimensional formed object 100 of the present embodiment, the three-dimensional shape of the three-dimensional formed object 100 is designed on a plane (eg Figure 2 and Figure 3 As shown in FIG. 1 ), and stacking to form a three-dimensional formed body 110 (as shown in FIG. Figure 4 ) and then folded to form a three-dimensional formed article 100 having a three-dimensional shape (as shown in FIG. Figure 1 As shown in FIG. 1 , the three-dimensional formed object 100 and the method for making the three-dimensional formed object 100 can be made in a simpler way, thereby reducing the production cost and simplifying the production process.

[0042] Furthermore, in this embodiment, if Figure 3 and 4 As shown, the shape retaining portion 130 includes a groove 132 formed on the first surface S1 of the three-dimensional molded object body 110, and a wire 134 inserted into the groove 132 to retain the three-dimensional molded object body 110 in a folded state. Figure 5 In the first step S01 shown in FIG. 1 , a groove 132 (eg, a groove 132 for retaining the shape 130) is further formed on the first surface S1 of the three-dimensional formed object body 110. Figure 3 and Figure 4 ), and in Figure 5 In the fourth step S04, the wire 134 as the shape retaining portion 130 is inserted into the groove 132 to keep the three-dimensional formed body 110 in the folded state. In this way, the shape retaining portion 130 composed of the groove 132 and the wire 134 is preferably in the unfolded state (i.e., Figure 3 and Figure 4 The shape retaining portion 130 of the present embodiment is suitable for assembling the sheet-like three-dimensional formed object body 110 into a single-use article (such as a sheet-like three-dimensional formed object body 110) by folding. Figure 1 ), but is not limited thereto.

[0043] Correspondingly, in Figure 6 In the variation shown, the shape retaining portion 130A is, for example, an assembly object used by the three-dimensional molded object 100A in a subsequent process to maintain the three-dimensional molded object body 110A in a folded state. In this way, the shape retaining portion 130A formed by the assembly object is preferably arranged on the first surface S1 of the three-dimensional molded object body 110A during the folding process of the three-dimensional molded object body 110A. For example, the three-dimensional molded object 100A is mounted on the outer side of the assembly object serving as the shape retaining portion 130A with the first surface S1, so that the folded three-dimensional molded object 100A can be retained from the inner side corresponding to the first surface S1, and the sheet 120A is located on the outside of the folded three-dimensional molded object 100A to form a decorative layer. In view of this, the shape retaining portion 130A of this variation is suitable for assembling the sheet-like three-dimensional molded object body 110A through folding to form an object that can be further assembled (such as Figure 6 ), but is not limited thereto.

[0044] In addition, in this embodiment, Figure 3 and Figure 4As shown, the plurality of slits 114 are connected to each other to form a plurality of triangular structures 116 on the first surface S1 of the three-dimensional formed body 110, and one of the plurality of slits 114 is formed as one side of one of the triangular structures 116. Figure 5 In the first step S01 shown (i.e., in the process of forming the slits 114), the plurality of slits 114 are further connected to each other to form a plurality of triangular structures 116 on the first surface S1 of the three-dimensional molded body 110, and one of the plurality of slits 114 is formed as one side of one of the triangular structures 116. It can be seen that cutting the first surface S1 of the three-dimensional molded body 110 into a plurality of triangular structures 116 can make the three-dimensional molded body 110 easier to fold. The number, size and shape (angle size) of the triangular structures 116 can be adjusted according to the desired folding degree (i.e., the desired three-dimensional shape). It can be imagined that the higher the density of the triangular structures 116, the more complex the three-dimensional shape folded out of the three-dimensional molded body 110 can be. However, in other embodiments not shown, the shape formed by the connection of the slits 114 is not limited, nor is it limited whether the slits 114 are connected, and it can be adjusted according to the desired folding degree.

[0045] In summary, in the three-dimensional formed object and the method for making the three-dimensional formed object of the present invention, a plurality of slits are formed on the first surface of the three-dimensional formed object body, and the sheet is formed on the second surface of the three-dimensional formed object body in close contact. Furthermore, the three-dimensional formed object body is folded along the plurality of slits to form a three-dimensional formed object with a three-dimensional shape, and the three-dimensional formed object body is maintained in a folded state via a shape retaining portion. In this way, the three-dimensional shape of the three-dimensional formed object is designed on a plane, and after the three-dimensional formed object body is stacked and formed, it is assembled to form a three-dimensional formed object with a three-dimensional shape via folding, without the need to use structures such as molds or support members, thereby reducing the production cost and simplifying the production process. Preferably, the shape retaining portion includes a groove formed on the first surface of the three-dimensional formed object body, and a wire inserted into the groove to keep the three-dimensional formed object body in a folded state. In addition, the plurality of slits are connected to each other to form a plurality of triangular structures on the first surface of the three-dimensional formed object body, which can make the three-dimensional formed object body easier to fold. Accordingly, the three-dimensional formed object and the method for making the three-dimensional formed object of the present invention can be made in a simpler way, thereby reducing the production cost and simplifying the production process.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A three-dimensional shaped article, characterized in that include: A three-dimensional molded object body formed by stacking a plurality of molded layers and having a first surface, a second surface opposite to the first surface, and a plurality of slits formed on the first surface; as well as The sheet is formed on the second surface of the three-dimensional formed object body and is in close contact with the second surface, wherein The three-dimensional formed object body is folded along the plurality of slits to form a three-dimensional formed object having a three-dimensional shape, and The three-dimensional molded object body is maintained in a folded state via a shape maintaining portion.

2. The three-dimensional shaped article according to claim 1, characterized in that: The shape maintaining portion includes a groove formed on the first surface of the three-dimensional molded object body, and a wire material inserted into the groove to maintain the three-dimensional molded object body in a folded state.

3. The three-dimensional shaped article according to claim 1 or 2, characterized in that: The plurality of slits are connected to each other to form a plurality of triangular structures on the first surface of the three-dimensional formed object body, and one of the plurality of slits is formed as one side of one of the triangular structures.

4. A method for making a three-dimensional formed object, characterized in that include: In a first step, a plurality of slits are formed on a first surface of a three-dimensional molded object body formed by stacking a plurality of molded layers; A second step is to form a sheet material on a second surface of the three-dimensional formed object body opposite to the first surface so as to be in close contact with the second surface; A third step is to fold the three-dimensional formed object body along the plurality of slits to form a three-dimensional formed object having a three-dimensional shape; as well as In a fourth step, the three-dimensional formed object body is maintained in a folded state via a shape maintaining portion.

5. The method for making a three-dimensional formed object according to claim 4, characterized in that: In the first step, a groove as the shape maintaining portion is further formed on the first surface of the three-dimensional molded object body, and In the fourth step, a wire material as a shape maintaining portion is inserted into the groove to maintain the three-dimensional molded object body in a folded state.

6. The method for producing a three-dimensionally formed object according to claim 4 or 5, characterized in that: In the first step, the plurality of slits are further connected to form a plurality of triangular structures on the first surface of the three-dimensional formed object body, and one of the plurality of slits is formed as one side of one of the triangular structures.

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