Molded plate and method for producing same

Abstract

The present invention provides, for example, a novel pattern plate formed by combining different materials and a method of manufacturing the same. This mold plate is provided with: a plurality of runners formed from synthetic resins of different colors; and a plurality of fittings connected to the plurality of runners. The plurality of fittings include: a first fitting formed of a single-color synthetic resin; and a second accessory formed by combining synthetic resins of a plurality of colors.

Description

[0001] This application is a divisional application of an application with an application date of February 11, 2025, application number 202510147656.4, and invention name “Model panel and its manufacturing method”. Technical Field

[0002] The invention relates to a model plate and a manufacturing method thereof. Background Art

[0003] The model toy uses a plurality of accessories each using a different synthetic resin. Thus, for example, a model toy can be realized by combining a plurality of accessories of different colors. These accessories are formed as a model plate formed by connecting a plurality of accessories with a flow channel, and each accessory is removed from the flow channel for use during assembly.

[0004] The above-mentioned model panel is manufactured by allowing synthetic resin to flow into a mold for molding. In such a model panel, there are cases where one model panel is molded using one synthetic resin and cases where one model panel is molded using a plurality of different synthetic resins. In the case where a model panel is molded using a plurality of different synthetic resins, a model panel including accessories of different colors can be formed. In Patent Document 1, a model panel having a plurality of flow channels for bringing together model structural components made of synthetic resin according to each of the same synthetic resins is proposed. In Patent Document 2, a multi-color molding device is proposed, in which a molded object formed by a molding mold is taken out and transferred to the next molding mold, and is embedded in the form of wrapping the molded object to form a completed multi-color molded object in one piece.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Utility Model Publication No. 06-7745

[0008] Patent Document 2: Japanese Patent Publication No. 07-102590 Summary of the invention

[0009] Problem that the invention aims to solve

[0010] In the above-mentioned prior art, a multi-color model plate can be formed, and a single component can be formed in multiple colors by performing insert molding or rotary molding. However, in insert molding or rotary molding, it is necessary to switch the mold for each of a plurality of molding processes such as primary molding and secondary molding, which requires considerable labor and time.

[0011] The present invention provides, for example, a novel pattern plate formed by combining different materials and a method for manufacturing the same.

[0012] Solutions for solving problems

[0013] The present invention is, for example, a model panel, characterized in that the model panel comprises: a plurality of flow channels, which are formed by synthetic resins of different colors; and a plurality of accessories, which are connected to the plurality of flow channels, and the plurality of accessories include: a first accessory, which is formed by a single-color synthetic resin; and a second accessory, which is formed by combining synthetic resins of multiple colors.

[0014] In addition, the present invention is, for example, a method for manufacturing a model panel, which includes a first accessory formed by a single-color synthetic resin and a second accessory formed by combining synthetic resins of multiple colors, and is characterized in that the method for manufacturing the model panel includes: a primary molding process, in which the synthetic resin of the first color is injected into the mold for molding; a releasing process, in which the stopper that fixes the part of the mold is released; and a secondary molding process, in which a synthetic resin of a second color different from the first color is injected into the mold for molding, and the synthetic resin of the second color flows into a gap ensured by moving the part of the mold in a prescribed direction by utilizing the injection pressure of the synthetic resin of the second color in the secondary molding process, thereby forming the second accessory.

[0015] Effects of the Invention

[0016] According to the present invention, for example, a novel pattern plate formed by combining different materials and a method for manufacturing the same are provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram showing the entire front view of a model plate according to one embodiment.

[0018] Figure 2 It is a perspective view showing a multi-color accessory according to one embodiment.

[0019] Figure 3 It is a figure which shows the manufacturing process of the multi-color accessory which concerns on one Embodiment.

[0020] Figure 4 This is a diagram showing a stopper for fixing a part of a mold according to one embodiment.

[0021] Figure 5 This is a diagram showing a cross section of a multi-color accessory according to one embodiment.

[0022] Figure 6 It is a diagram showing a cross section of a movable block according to one embodiment.

[0023] Description of Reference Numerals

[0024] 100, model plate; 101, 104, runner; 102, 105, sprue; 103, 106, accessories (single-color accessories); 107, 108, latent sprue; 110, first part; 120, second part; 130, third part; 200, multi-color accessories; 201, synthetic resin of the first color; 202, synthetic resin of the second color; 210, block. DETAILED DESCRIPTION

[0025] The following embodiments are described in detail with reference to the accompanying drawings. In addition, the following embodiments do not limit the invention involved in the claims. In addition, all combinations of features described in the embodiments are not necessarily required for the invention. Two or more of the multiple features described in the embodiments may also be combined arbitrarily. In addition, the same or similar structures are marked with the same figure marks, and repeated descriptions are omitted.

[0026] <Structure of the model plate (flow channel)>

[0027] Next, refer to Figure 1 The following describes a structural example of a model plate according to the present embodiment. In addition, the arrows of x, y, and z respectively indicate the orientation of the left, top, and front directions in a model plate formed by connecting a plurality of accessories to a runner. Here, the runner refers to a rod-shaped portion of plastic that is arranged in a manner to connect and surround a plurality of accessories before assembly in a model toy such as a plastic model. In addition, sometimes the entirety including the plurality of connected accessories is referred to as a runner. Here, when referring to the runner as a whole including a plurality of accessories, it is referred to as a "model plate."

[0028] Figure 1 The model panel 100 shown is a model panel formed by multi-color molding. Here, a model panel formed by multi-color molding using a two-color synthetic resin is used as an example for explanation. However, it is not intended to limit the present invention, and more synthetic resin materials of different colors can also be used for multi-color molding. The model panel 100 is composed of a first part 110 formed by a first color synthetic resin, a second part 120 formed by a second color synthetic resin, and a third part 130 formed by a two-color synthetic resin. Figure 1 In the example, the portion formed by the synthetic resin of the second color is shaded, and the portion formed by the synthetic resin of the first color is not shaded. Thus, according to the present embodiment, in addition to the first accessory formed by the synthetic resin material of a single color, a second accessory formed by combining synthetic resins of multiple colors is formed in a part of the model plate 100.

[0029] In addition, the model plate 100 of the present embodiment is manufactured by injection molding in which a synthetic resin material is injected into a mold using an injection device. The mold is configured to include a cavity (fixed side) and a core (movable side), and the model plate 100 is manufactured by flowing the synthetic resin material into a cavity sandwiched by the cavity and the core. Usually, the cavity abuts against the appearance surface of the molded product, and the core abuts against the non-appearance surface (back surface). In the present embodiment, core-retracting molding in which a part of the core is moved after the primary molding to perform secondary molding is described. However, the present invention is not limited, and can also be applied to cavity-retracting molding in which a part of the cavity is moved after the primary molding to perform secondary molding.

[0030] The model plate 100 has a runner 101, a sprue 102, and an accessory 103 formed of a synthetic resin of a first color in the first portion 110, and has a runner 104, a sprue 105, and an accessory 106 formed of a synthetic resin of a second color in the second portion 120. The accessories 103 and 106 are equivalent to the first accessory formed of a single-color synthetic resin. On the other hand, the model plate 100 has a multi-color accessory 200 formed by combining a synthetic resin of a first color and a synthetic resin of a second color different from the synthetic resin of the first color in the third portion 130. The multi-color accessory 200 is equivalent to the second accessory.

[0031] The model plate 100 is manufactured by injecting a synthetic resin of the first color (first synthetic resin) into the mold from an injection device (not shown) for primary molding, and after the injected resin solidifies, injecting a synthetic resin of the second color (second synthetic resin) from the injection device for secondary molding. Here, in the multi-color accessory 200, if different synthetic resins are injected into one accessory, the synthetic resin injected for the first time is blocked in the part of the accessory, so that the synthetic resin injected for the second time does not flow in. However, according to the present embodiment, after the synthetic resin injected for the first time solidifies, a part (movable block) of the mold on the cavity side or the core side of the mold that molds the accessory is moved to ensure a gap, so that a second different synthetic resin flows into the gap area. Therefore, according to the present embodiment, the mold can be used in the primary molding and the secondary molding without switching the mold, so that the multi-color accessory can be efficiently molded. The details of the manufacturing process will be described later.

[0032] In this embodiment, an example using a first color synthetic resin and a second color synthetic resin is described, but the present invention is not limited thereto. For example, synthetic resins with different softness may be used, or components with different hardness may be formed in one component.

[0033] In addition, in order to form an accessory in multiple colors, it is necessary to form flow paths for different synthetic resins to flow in, respectively, in accordance with the shape of the accessory. However, the area in which an accessory is formed is small, and it is difficult to form multiple flow paths. Therefore, in the present embodiment, as shown in the accompanying drawings 107 and 108, a latent sprue is used in a part of the sprues to ensure the flow path. Here, the latent sprue (tunnel sprue) is a tunnel-shaped sprue formed in the mold, which is separated from the flow path when the molded product is taken out of the mold. In addition, it is not intended to limit the present invention, and it is not necessarily necessary to use a latent sprue, and other sprues such as a side sprue and a jump sprue may also be used.

[0034] In addition, according to the present embodiment, the mold plate 100 is molded using a two-color synthetic resin, but the runners of different colors are connected to each other at a plurality of locations 141 to 144. The runners of different colors (different resin materials) are connected to each other in the present embodiment by injecting a synthetic resin of a first color (first synthetic resin) from an injection device (not shown) to perform primary molding, and after the inflowing resin solidifies to a certain extent, the stopper member on the runner that blocks the inflow of the synthetic resin of the first color (first synthetic resin) to the synthetic resin of the second color (second synthetic resin) is removed, and the synthetic resin of the second color (second synthetic resin) is injected from the injection device to perform secondary molding. Here, the runner includes a runner (referred to as a first runner) arranged in a manner to surround the accessory and a runner (referred to as a second runner) branching from the first runner to reach the accessory.

[0035] Here, it is assumed that only the first flow channel arranged in a manner surrounding the accessory is connected to the flow channel formed of synthetic resin of another color. In this case, since the connection position is limited, only accessories with simple color distinction among the multi-color accessories 200 can be formed. Figure 1 In the example, the flow channel 101 formed by the synthetic resin of the first color is formed on the lower side of the figure, and the flow channel 104 formed by the synthetic resin of the second color is formed on the upper side of the figure. If a multi-color accessory is formed under such a premise, the synthetic resin of the first color is used to form the part within the range that can flow in from the lower side of the figure, and the synthetic resin of the second color is used to form the part within the range that can flow in from the upper side of the figure, and it is very difficult to form a complicated accessory of two-color synthetic resin. In the case of realizing it under such conditions, the mold needs to be formed more precisely and more complicated, which is not realistic from the perspective of manufacturing cost, labor, and time.

[0036] On the other hand, according to this embodiment, the second flow paths branching from the first flow path to the accessory are connected as shown by reference numerals 143 and 144. This improves the degree of freedom when molding multi-color accessories, and enables molding of multi-color accessories with complex patterns.

[0037] <Multi-color accessories>

[0038] Reference Figure 2 The following describes a configuration example of a multi-color accessory according to the present embodiment. The arrows x, y, and z respectively indicate the directions of the multi-color accessory in the left, upper, and front directions.

[0039] Figure 2 A perspective view showing a multi-color accessory 200 separated from the flow channel of the model plate 100. The multi-color accessory 200 is composed of a first color synthetic resin 201 and a second color synthetic resin 202. The accessory 200 corresponds to the chest of a human-shaped model toy. Figure 2 As shown, the multi-color accessory 200 is formed by complexly combining two-color synthetic resins. Figure 1 As shown, the multi-color accessory 200 is already formed in multiple colors when connected to the flow channel, and is not formed by assembling accessories of different colors.

[0040] When manufacturing the model plate 100, in order to form the multi-color accessories 200, as described in the above-mentioned background technology, it is usually manufactured by embedded and rotary molding. However, the embedded and rotary molding is manufactured in the following manner: the runner connected to one or more accessories solidified after the primary molding is removed from the mold and transferred, and reset to a different mold for secondary molding to perform secondary molding. In this way, the embedded and rotary type is a very labor-intensive and time-consuming manufacturing process and is not suitable for mass production. Therefore, according to the present embodiment, a structure that can form the above-mentioned multi-color accessories 200 without switching molds is described. Below, the manufacturing process (core retreat type or cavity retreat type) of the model plate 100 including the multi-color accessories 200 of the present embodiment is described in detail.

[0041] <Manufacturing process of multi-color accessories>

[0042] Reference Figure 3 , the manufacturing process of the multi-color accessory 200 of this embodiment is described. Figure 3 (a)~ Figure 3 (c) is a perspective view showing the multi-color accessory 200 installed in the mold during the manufacturing process. Figure 3 (d)~ Figure 3 The (f) respectively represent Figure 3 (a)~ Figure 3 (c) corresponds to the front view. In this embodiment, a mold plate including multi-color accessories is manufactured by performing core-retracting or cavity-retracting molding using a movable block in a part of the accessories. In addition, the core-retracting type is described here, but the cavity-retracting type is also the same. In the case of the cavity-retracting type, the direction in which the part of the mold moves becomes the cavity side in the opposite direction to the core-retracting type.

[0043] Figure 3 (a) and Figure 3 (d) shows the situation of the multi-color accessory 200 after the primary molding in the manufacturing process of the model plate 100. Reference numeral 201 indicates the state in which the synthetic resin of the first color is solidified after the primary molding. Reference numeral 210 indicates a block for molding the multi-color accessory 200 as a part of the mold on the core side. In the primary molding, the synthetic resin 201 of the first color flows into the gap formed between the block 210 and the mold on the cavity side (not shown) to be molded. If the synthetic resin 201 of the first color is solidified after the primary molding, the synthetic resin 202 of the second color is injected from the injection device (not shown).

[0044] Figure 3 (b) and Figure 3 (e) shows the situation of the multi-color accessory 200 just after the second color synthetic resin 202 is injected. In the secondary molding, when the synthetic resin is injected from the injection device, the block 210 moves in a specified direction due to the injection pressure. In the present embodiment, it drops downward in the figure (in the direction of the arrow). This is because, in the primary molding, the block 210 is fixed by the stopper described later, and by releasing the fixation of the stopper before the secondary molding, the block 210 moves due to the above-mentioned injection pressure. When the block 210 moves in the direction of the arrow, a gap 301 is formed between it and the first color synthetic resin 201.

[0045] Figure 3 (c) and Figure 3 (f) shows the situation where the second color synthetic resin 202 flows into the formed gap 301. Figure 3 Although not shown in the figure, the second color synthetic resin 202 is actually sandwiched by the mold on the rear side of the cavity, so the surface of the flowing second color synthetic resin 202 is formed as shown in the figure.

[0046] like Figure 3As shown in (f), the synthetic resin 202 of the second color flows into the gap formed between the synthetic resin 201 of the first color and the block 210, so that the synthetic resin 201 of the first color and the synthetic resin 202 of the second color are formed in a stacked structure. In addition, in the portion where the synthetic resin 201 of the first color and the synthetic resin 202 of the second color overlap, as shown in the circular dotted area, the synthetic resin 202 of the second color is formed on one side of the specified direction in which the block 210, which is a part of the mold, moves. For example, in the model plate 100, the upper direction of the multi-color accessory 200 in the figure is the surface, and the lower direction is the back. In this case, the synthetic resin 202 of the second color is located at the lower side of the synthetic resin 201 of the first color at any position, and the portion where the synthetic resin 201 of the first color and the synthetic resin 202 of the second color overlap is formed on the back side of the multi-color accessory 200. When the present invention is applied to form a model plate including a multi-color accessory, the above characteristics are exhibited. In the present embodiment, the block 210 moves downward, so the above-mentioned positional relationship is achieved. However, the positional relationship differs depending on the direction in which the block moves.

[0047] <Mold Structure>

[0048] Reference Figure 4 , the local structure of the mold of this embodiment is described. Figure 4 Indicates a part of the mold on the core side. In addition, although the example in which a part of the mold on the core side is moved is described here, this does not limit the present invention, and a part of the mold on the cavity side may also be moved.

[0049] Reference numerals 401 and 402 indicate a portion of the mold on the core side, in which a block 210 as a movable block is embedded. Reference numeral 403 is a stopper for fixing the block 210. The stopper 403 is inserted between the molds 401 and 402 by means of a cylinder (not shown), thereby limiting the downward movement of the block 210 in the figure. Figure 4 In the illustrated state, it is possible to restrict the block 210 from falling downward due to the injection pressure when the synthetic resin is injected.

[0050] On the other hand, when the stopper 403 is pulled out from between the molds 401 and 402, the fixation (movement restriction) of the block 210 is released. In this state, when the synthetic resin is injected, the block 210 moves downward due to the injection pressure. In addition, the stopper can be inserted into the mold from multiple directions. In this case, the movement of the movable block can be restricted by each stopper, and multi-color accessories can be formed in various places.

[0051] <Cross-section of multi-color accessories>

[0052] Reference Figure 5The cross section of the multi-color accessory 200 of this embodiment is described. As described above, in this embodiment, the first color synthetic resin 201 is injected and molded in the primary molding and solidified, and then the second color synthetic resin 202 is flowed into the gap formed by the block 210 as the movable block moving in a predetermined direction due to the injection pressure to form the molding in the secondary molding. That is, the second color synthetic resin 202 flows into the formed gap to form the molding.

[0053] Here, if Figure 5 As shown in the dotted area 501 of FIG. 1 , in order to give the accessory a three-dimensional effect, a step is sometimes provided. Such a step portion becomes a relatively narrow area (thin wall), so the filling of the synthetic resin is insufficient (interrupted) during molding and becomes insufficient, resulting in poor molding. Therefore, in order to avoid the above-mentioned poor molding, the step portion of the movable block of this embodiment is designed to avoid a right-angle shape.

[0054] Figure 6 A schematic cross section of the movable block is shown. Figure 6 (a) Figure 6 (b) shows a cross section of a movable block where shortage is likely to occur. Figure 6 (c) Figure 6 (d) shows a cross section of the movable block of the present embodiment. In addition, reference numerals 601 and 611 indicate parts of the mold on the cavity side, and reference numerals 602 and 612 indicate parts of the mold on the core side. In multi-color molding of the core-retracting type or the cavity-retracting type, the mold 601 and 611 on the cavity side or the mold 602 and 612 on the core side moves in the direction of the arrow after the primary molding. Thereafter, as shown in reference numerals 603 and 613, the injected synthetic resin in the secondary molding flows into the gap ensured therebetween to be molded.

[0055] Here, the molds 601 and 602 form a stepped portion at a right angle. In this case, as shown in the area of ​​reference numeral 604, after the partial movement of the mold in the secondary molding, the stepped portion becomes a narrow area. In this state, even if the synthetic resin flows, the synthetic resin is blocked in the area 604, and molding failure may occur.

[0056] On the other hand, the molds 611 and 612 of the present embodiment do not form a right-angled portion at the step portion, but are formed using an inclination of a specified angle. In this case, as shown in the area of ​​the reference numeral 614, a wider area can be ensured compared to the case where the step portion is formed at a right angle after the partial movement of the mold in the secondary molding. Thus, it is possible to avoid poor molding caused by poor filling of the synthetic resin. In this way, according to the present embodiment, the step portion formed in the local part of the mold is formed to have an inclination, thereby suppressing poor molding.

[0057] As described above, the model plate of this embodiment includes a plurality of flow paths formed of synthetic resins of different colors and a plurality of accessories connected to the plurality of flow paths. The plurality of accessories include a first accessory formed of a single-color synthetic resin and a second accessory formed by combining synthetic resins of multiple colors. Thus, a novel model plate formed by combining different materials without switching molds and a manufacturing method thereof can be provided.

[0058] The present invention is not limited to the above-mentioned embodiments, and various modifications and changes can be made within the scope of the main purpose of the invention. For example, in the above-mentioned embodiments, an example of using synthetic resins of different colors as different synthetic resins to form multi-color accessories is described. However, the present invention is not limited to this, as long as synthetic resins of different materials are used. For example, materials with different softness (hardness) and materials with different textures can also be used.

[0059] <Summary of Implementation Methods>

[0060] The above-mentioned embodiments at least disclose the following model plate and its manufacturing method. (1)

[0062] A model plate, characterized in that:

[0063] The model panel has:

[0064] a plurality of flow channels formed of synthetic resins of different colors; and

[0065] a plurality of fittings connected to the plurality of flow channels,

[0066] The multiple accessories include:

[0067] a first accessory formed of a single-color synthetic resin; and

[0068] The second accessory is formed by combining synthetic resins of a plurality of colors. (2)

[0070] The mold plate according to (1) is characterized in that:

[0071] The second component is formed by primary molding with a synthetic resin of a first color and then secondary molding with a synthetic resin of a second color in a gap ensured by partially moving a mold in a predetermined direction. (3)

[0073] The mold plate according to (2) is characterized in that:

[0074] In the portion of the second component where the synthetic resin of the first color overlaps with the synthetic resin of the second color, the synthetic resin of the second color is formed on one side of the predetermined direction in which the part of the mold moves. (4)

[0076] The mold plate according to (2) or (3) is characterized in that:

[0077] In the primary molding, part of the mold is fixed. (5)

[0079] The mold plate according to (4) is characterized in that:

[0080] In the secondary molding, the fixation of a part of the mold is released, and the part of the mold is moved in the predetermined direction by the injection pressure of the synthetic resin of the second color. (6)

[0082] The mold plate according to (5) is characterized in that:

[0083] The stepped portion formed at a portion of the mold is formed to include an inclination. (7)

[0085] The mold plate according to any one of (2) to (6), characterized in that:

[0086] In the second accessory, the synthetic resin of the second color is formed by means of a latent sprue. (8)

[0088] The mold plate according to any one of (2) to (7), characterized in that:

[0089] The flow channel formed by the synthetic resin of the first color and the flow channel formed by the synthetic resin of the second color among the plurality of flow channels are respectively formed by a first flow channel formed in a manner of surrounding at least one of the plurality of accessories and a second flow channel branching from the first flow channel to reach any one of the plurality of accessories,

[0090] The first flow channel formed of the synthetic resin of the first color is connected to the first flow channel formed of the synthetic resin of the second color, and the second flow channel formed of the synthetic resin of the first color is connected to the second flow channel formed of the synthetic resin of the second color. (9)

[0092] The pattern plate according to any one of (1) to (8), characterized in that:

[0093] The model plate is formed with a plurality of the second accessories. (10)

[0095] The pattern plate according to any one of (1) to (9), characterized in that:

[0096] The second component is formed by a core-recession method or a cavity-recession method. (11)

[0098] The mold plate according to (10) is characterized in that

[0099] The second accessory is not formed by an embedded or rotating method. (12)

[0101] A method for manufacturing a model plate, the model plate comprising a first component formed of a single-color synthetic resin and a second component formed by combining synthetic resins of multiple colors, characterized in that:

[0102] The manufacturing method of the model plate comprises:

[0103] a primary molding step in which a synthetic resin of a first color is injected into a mold for molding;

[0104] a releasing step of releasing a stopper that fixes a portion of the mold; and

[0105] a secondary molding step in which a synthetic resin of a second color different from the first color is injected into the mold for molding,

[0106] The second color synthetic resin flows into the gap ensured by moving a part of the mold in a predetermined direction by the injection pressure of the second color synthetic resin in the secondary molding step, thereby molding the second component.

Claims

1. A model plate, characterized in that: The model panel has: a plurality of flow channels formed of synthetic resins of different colors; and a plurality of fittings connected to the plurality of flow channels, The multiple accessories include: a first accessory formed of a single-color synthetic resin; and The second accessory is formed by combining synthetic resins of a plurality of colors.

2. The model plate according to claim 1, characterized in that: The second component is formed by primary molding with a synthetic resin of a first color and then secondary molding with a synthetic resin of a second color in a gap ensured by partially moving a mold in a predetermined direction.

3. The model plate according to claim 2, characterized in that: In the portion of the second component where the synthetic resin of the first color overlaps with the synthetic resin of the second color, the synthetic resin of the second color is formed on one side of the predetermined direction in which the part of the mold moves.

4. The model plate according to claim 3, characterized in that: In the primary molding, part of the mold is fixed.

5. The model plate according to claim 4, characterized in that: In the secondary molding, the fixation of a part of the mold is released, and the part of the mold is moved in the predetermined direction by the injection pressure of the synthetic resin of the second color.

6. The model plate according to claim 5, characterized in that: The stepped portion formed at a portion of the mold is formed to include an inclination.

7. The model plate according to claim 6, characterized in that: In the second accessory, the synthetic resin of the second color is formed by means of a latent sprue.

8. The model plate according to any one of claims 2 to 7, characterized in that: The flow channel formed by the synthetic resin of the first color and the flow channel formed by the synthetic resin of the second color among the plurality of flow channels are respectively formed by a first flow channel formed in a manner of surrounding at least one of the plurality of accessories and a second flow channel branching from the first flow channel to reach any one of the plurality of accessories, The first flow channel formed of the synthetic resin of the first color is connected to the first flow channel formed of the synthetic resin of the second color, and the second flow channel formed of the synthetic resin of the first color is connected to the second flow channel formed of the synthetic resin of the second color.

9. The model plate according to any one of claims 1 to 7, characterized in that: The model plate is formed with a plurality of the second accessories.

10. The model plate according to any one of claims 1 to 7, characterized in that: The second component is formed by a core-recession method or a cavity-recession method.

11. The model plate according to claim 10, characterized in that: The second accessory is not formed by an embedded or rotating method.

12. A method for manufacturing a model plate, the model plate comprising a first component formed of a single-color synthetic resin and a second component formed by combining synthetic resins of multiple colors, characterized in that: The manufacturing method of the model plate comprises: a primary molding step in which a synthetic resin of a first color is injected into a mold for molding; a releasing step of releasing a stopper that fixes a portion of the mold; and a secondary molding step in which a synthetic resin of a second color different from the first color is injected into the mold for molding, The second color synthetic resin flows into the gap ensured by moving a part of the mold in a predetermined direction by the injection pressure of the second color synthetic resin in the secondary molding step, thereby molding the second component.

Images