Manufacturing method of resin molded article, resin mold, and resin molded article
The described method efficiently produces resin molded products with controlled ink application and protected resin parts in fewer steps by using a transfer printing apparatus with controlled ink exposure in specific cavities.
Patent Information
- Application Number
- JP2024071561
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2044-04-25
AI Technical Summary
Existing methods for manufacturing resin molded products with complex structures that require protection from ink transfer and printing on specific parts are inefficient, often requiring multiple steps.
A method involving a transfer printing apparatus with a first fixed mold, a movable mold, and a sliding mold, where ink is applied to a film fixed to the first fixed mold, and resin is poured and cured in multiple interconnected cavities to form resin parts with ink exposure controlled in specific areas.
This approach allows for the efficient production of resin molded products with complex structures in fewer steps, ensuring that ink is only applied to designated areas while forming resin parts that need protection from transfer.
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Figure 2025167181000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a manufacturing technique for a resin molded product. [Background technology]
[0002] The resin molding mold shown in Patent Document 1 comprises a fixed first fixed mold, a first movable mold that is movable relative to the first fixed mold and can sandwich a film with ink attached thereto, and a second movable mold that is movable relative to the first fixed mold and can form a cavity of a different shape from that of the first movable mold.
[0003] The first movable mold, with the film sandwiched between them, is aligned with the fixed mold, and molten resin is poured into the first cavity formed by this and then cured. The ink that was attached to the film is transferred to the cured resin. The first movable mold is then retracted, leaving the resin with the transferred ink, and the second movable mold is then placed on top of the resin to form the second cavity. Molten resin is poured into the second cavity and cured, resulting in a resin molded product with the printed area sandwiched between the resin. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-011523 Summary of the Invention [Problem to be solved by the invention]
[0005] Among resin molded products, there are some that include a first resin part that needs to be protected from ink transfer and a second resin part that needs to be printed on at least a part of it. It would be desirable to be able to manufacture resin molded products with such complex structures in fewer processes.
[0006] An object of the present disclosure is to provide a technique that can manufacture resin molded products with complex structures with fewer steps. [Means for solving the problem]
[0007] According to one aspect of the present disclosure, a method for producing a transfer printing apparatus includes a preparation step of preparing a first fixed mold that is immovable, a movable mold that is displaceable in one direction relative to the first fixed mold, a sliding mold that is slidable in a direction different from the one direction relative to the movable mold, and a film on which ink to be transferred is adhered; a film fixing step of fixing the film to the first fixed mold so that the surface on which the ink is applied faces the movable mold; a first cavity forming step of sliding the slide mold to form a first cavity together with the movable mold and the slide mold, and aligning the movable mold with the first fixed mold to which the film is fixed to form a second cavity together with the first fixed mold and the movable mold; a first resin pouring step of pouring molten resin into the first cavity and the second cavity; a first resin curing step of curing the resin poured into the first cavity and the second cavity to obtain a first resin part cured in the first cavity and a second resin part cured in the second cavity; There is provided a method for producing a resin molded product, wherein in the first cavity forming step, the ink is exposed only to the second cavity.
[0008] According to another aspect of the present disclosure, there is provided a method for manufacturing a molded product, comprising: a first fixed mold that is immovable; a movable mold that is provided so as to be displaceable in one direction relative to the first fixed mold; and a sliding mold that is provided so as to be slidable in a direction different from the one direction relative to the movable mold, the first fixed die has a placement portion on which a film having ink attached thereto is placed, By sliding the slide mold, it is possible to pour resin between the movable mold and the slide mold, and a first cavity that becomes a first resin part is formed by hardening the poured resin; By matching the movable mold with the first fixed mold, resin can be poured into the area facing the placement portion, and a second cavity that becomes a second resin part is formed when the poured resin hardens, thereby providing a resin molding mold.
[0009] According to yet another aspect of the present disclosure, there is provided a vehicle body having a first resin component that is a component made of resin, a second resin component that is a component made of resin and is provided at a distance from the first resin component, and a support component that integrally supports the first resin component and the second resin component, When a surface of the first resin component facing the support component is defined as a first support surface portion, and a surface of the second resin component facing the support component is defined as a second support surface portion, At least a portion of the first support surface portion exposes the resin constituting the first resin component to the outside, There is provided a resin molded product in which the second support surface portion is at least partially printed. [Effects of the Invention]
[0010] According to the present disclosure, it is possible to provide a manufacturing technique for a resin molded product that is manufactured with a small number of steps. [Brief explanation of the drawings]
[0011] [Figure 1] FIG. 1 is a front view of a resin molded product according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. [Figure 3] 2 is a diagram illustrating a printed area of the resin molded product shown in FIG. 1. FIG. [Figure 4] 2A to 2C are diagrams illustrating a preparation step and a resin molding die in the method for producing the resin molded product shown in FIG. [Figure 5] FIG. 10 is a diagram illustrating a second fixed type. [Figure 6] 10A to 10C are diagrams illustrating a film fixing step. [Figure 7]FIG. 7A is an enlarged view of part 7A in FIG. 6, and FIG. 7B is a diagram illustrating the first cavity forming step. [Figure 8] FIG. 8A is a diagram for explaining a first resin pouring step and a first resin hardening step, and FIG. 8B is a diagram for explaining a movable mold and sliding mold raising step. [Figure 9] 10A to 10C are diagrams illustrating a second cavity forming step. [Figure 10] FIG. 10A is an enlarged view of part 10A in FIG. 9, and FIG. 10B is a diagram illustrating the second resin pouring step and the second resin hardening step. [Figure 11] FIG. 11A is a diagram for explaining the slide mold retracting step, and FIG. 11B is a diagram for explaining the mold opening step. DETAILED DESCRIPTION OF THE INVENTION
[0012] An embodiment of the present invention will be described below with reference to the accompanying drawings. In the description, left and right refer to left and right relative to the vehicle occupants, and front and rear refer to front and rear relative to the direction of travel of the vehicle. The embodiment shown in the accompanying drawings is an example of the present invention, and the present invention is not limited to this embodiment.
[0013] <Example> Please refer to Fig. 1. The resin molded product 10 is, for example, a decorative part that is provided in front of the passengers of a vehicle and that constitutes part of the dashboard.
[0014] Referring to Fig. 2, the resin molded product 10 has two first resin parts 20, 30 made of a transparent resin through which light passes, a second resin part 40 made of a transparent resin that is spaced apart between the first resin parts 20, 30 and is irradiated with light guided to the first resin parts 20, 30, and a support part 50 made of resin that integrally supports the first resin parts 20, 30 and the second resin part 40.
[0015] Please refer to Figure 3. Ink 15i (see Figure 2) has been transferred to part of the back surface of the first resin parts 20 and 30 and to the entire back surface of the second resin part 40. In Figure 3, the areas to which ink 15i has been transferred are indicated by coloring.
[0016] Referring to Figure 1, the first resin parts 20 and 30 can be made of polycarbonate (PC) or acrylic resin (PMMA). The two first resin parts 20 and 30 are made of the same material. The first resin parts 20 and 30 are provided along the long sides of the second resin part 40.
[0017] At least one end (the end on the left side of the drawing in this embodiment) of each of the first resin parts 20, 30 is connected to a light source such as an LED. Light emitted from the light source passes through the inside of the first resin parts 20, 30, which are light guides, and is reflected toward and incident on the second resin part 40.
[0018] The first resin parts 20, 30 may have edges or the like formed thereon to reflect light toward the second resin part 40. This allows the entire second resin part 40 to be more evenly irradiated.
[0019] One of the first resin parts 20 (the first resin part 20 on the upper side of the drawing) is formed in a generally straight line. The other first resin part 30 (the first resin part 30 on the lower side of the drawing) has a gently curved shape. The first resin parts 20, 30 each have a shape that follows the outer edge of the second resin part 40.
[0020] The first resin parts 20 and 30 may have the same shape. Furthermore, the number of first resin parts 20 and 30 may be one, or three or more, depending on the size and shape of the second resin part 40.
[0021] See Fig. 2. Hereinafter, the back surfaces of the first resin parts 20, 30 may be referred to as first support surface parts 21, 31 supported by the support part 50.
[0022] See Figure 3. The first resin parts 20, 30 must have at least a portion formed with a region to which the ink 15i (see Figure 2) has not been transferred. In other words, the first resin parts 20, 30 are parts that include a region to which the ink 15i must be prevented from being transferred. The region of the first resin parts 20, 30 to which the ink 15i has not been transferred is referred to as the first resin part main body portion 22, 32, and the region to which the ink 15i has been transferred is referred to as the first resin part extension portion 23, 33.
[0023] The first resin component main bodies 22, 32 are formed in a region where the second resin component 40 is provided therebetween. On the other hand, the first resin component extensions 23, 33 are formed in a region where the second resin component 40 is not provided therebetween. The first resin component extensions 23, 33 extend from both ends of the first resin component main bodies 22, 32, respectively.
[0024] The first resin parts 20, 30 may be composed only of the first resin part main body 22, 32. In other words, the first resin parts 20, 30 may be formed only of a portion to which the ink 15i has not been transferred. By forming a portion to which the ink 15i has not been transferred in at least a part of the first resin parts 20, 30, it is possible to prevent light incident on the first resin parts 20, 30 from being absorbed by the ink, and to allow the light to shine brightly and farther from the light source.
[0025] Also see Figure 2. In the first support surface portions 21, 31, the resin that constitutes the first resin parts 20, 30 is exposed to the outside in the areas where the ink 15i has not been transferred. The areas where the resin is exposed to the outside can also be referred to as areas where no printing has been applied.
[0026] 1, polycarbonate (PC) or acrylic resin (PMMA) can be used as the material for the second resin part 40. The second resin part 40 is made of the same material as the first resin parts 20 and 30.
[0027] By providing the first resin parts 20, 30 and the second resin part 40, which are made of the same material, at a distance from each other, it is possible to prevent light from being reflected and transmitted sufficiently within the first resin parts 20, 30 and immediately entering the second resin part 40. This reduces the loss of energy in the emitted light, allowing it to efficiently irradiate the second resin part 40 from the light source to a long distance. The second resin part 40 is a plate-like member having a generally trapezoidal shape with one side gently curved. The shape of the second resin part 40 does not have to have all sides straight or be generally trapezoidal.
[0028] 2, the second resin part 40 is formed so that the thickness of the edge portion 42, which is the outer edge, is thinner than the thickness of the general portion 41. The edge portion 42 is formed along the entire outer periphery of the general portion 41.
[0029] When light is incident on the second resin part 40 from the first resin parts 20, 30, the pattern or the like formed by the ink 15i transferred to the rear surface is illuminated, thereby improving the design.
[0030] Hereinafter, the back surface of the second resin component 40 may be referred to as a second support surface portion 43 supported by the support component 50.
[0031] Referring to Fig. 3, the back surface (second support surface portion 43) of the second resin component 40 is printed over the entire surface.
[0032] Note that a pattern or the like may be printed on the second resin part 40, and in this case, a part of the back surface of the second resin part 40 may be exposed. In this respect, it can be said that a part of the back surface of the second resin part 40 has been formed with a region to which the ink 15i (see FIG. 2) has been transferred.
[0033] See Fig. 1. The material of the support component 50 is preferably a resin such as ABS resin. The melting point of the ABS resin is preferably lower than the melting point of the resin used to make the first resin components 20, 30 and the second resin component 40. The support component 50 is made of a colored resin that does not transmit light.
[0034] The support component 50 has a frame-shaped frame portion 51 provided along the back surface of the edge portion 42 of the second resin component 40, and connecting portions 52 extending from the frame portion 51 toward the first resin components 20, 30 and connecting the first resin components 20, 30 and the second resin component 40. The connecting portions 52 are connected to portions of the first resin components 20, 30 where the second resin component 40 is not disposed. In other words, the connecting portions 52 extend to the first resin component extension portions 23, 33.
[0035] 2. In the support component 50, the connection portion 52 is formed lower than the frame portion 51, and therefore the first resin components 20, 30 are also positioned lower than the second resin component 40. As a result, light emitted from the first resin components 20, 30 is mainly incident from the edge portion 42.
[0036] The support component 50 has a rib 53 extending from the rear surface of the frame portion 51 so as to separate it from the second resin component 40. The resin molded product 10 is attached to a vehicle body or the like via the rib 53.
[0037] The resin molded article 10 described above is formed by injection molding. A resin molding die for forming the resin molded article 10 and a method for manufacturing the resin molded article 10 will now be described.
[0038] Referring to Figure 4, first, the resin molding die 60 will be described. The resin molding die 60 has a first fixed die 61 which is an immovable die, a movable die 62 which is movable up and down (displaceable in one direction) relative to the first fixed die 61 and rotatable in the horizontal direction, a sliding die 63 which is slidably provided relative to the movable die 62, and clamp members 64, 64 for pressing the film 15 having the ink 15i adhered thereto onto the first fixed die 61.
[0039] Please refer to Figure 5. The resin molding die 60 further has a second fixed die 65 which is an immovable die.
[0040] 4, first fixed mold 61 has a placement portion 61a on which film 15 is placed. Note that first fixed mold 61 may have a hole formed therein for adsorbing film 15 onto placement portion 61a.
[0041] Also see Figure 5. For example, by rotating the movable mold 62 from above the first fixed mold 61, it moves to above the second fixed mold 65. When the movable mold 62 is further rotated, it returns to above the first fixed mold 61.
[0042] Two movable molds 62 may be provided. In this case, the sliding molds 63 are also provided to correspond to the respective movable molds 62. By providing the first fixed mold 61 and the second fixed mold 65 180° apart and providing the two movable molds 62 (and the sliding molds 63 corresponding to the respective movable molds 62) 180° apart, both the first fixed mold 61 and the second fixed mold 65 can be operated simultaneously.
[0043] It is to be noted that three or more movable dies 62 (and slide dies 63 corresponding to each movable dies 62) may be provided. Furthermore, the movable dies 62 may be configured to reciprocate linearly between the first fixed die 61 and the second fixed die 65, or three or more movable dies 62 may be configured to pass through a position facing one each of the first fixed die 61 and the second fixed die 65.
[0044] The second fixed mold 65 may be provided integrally and continuously with the first fixed mold 61, or may be configured as an individual mold independent of the first fixed mold 61. In other words, the first fixed mold 61 and the second fixed mold 65 may be either integrated or separate objects as long as they can each form a cavity different from that of the movable mold 62.
[0045] Next, a method for manufacturing the resin molded product 10 (see FIG. 1) will be described.
[0046] Referring to Figure 4, first, a first fixed mold 61, a movable mold 62, a sliding mold 63, a film 15 with ink 15i attached thereto, clamp members 64, 64, and a second fixed mold 65 (see Figure 5) are prepared (preparation step).
[0047] See Figure 6. Next, the film 15 is placed on the mounting portion 61a of the first fixed mold 61 with the surface with the ink 15i facing upward, and the film 15 is fixed using the clamp members 64, 64 (film fixing step).
[0048] 7A and 7B, the movable mold 62 is lowered to form the second cavity C2 between the first fixed mold 61 and the movable mold 62. Furthermore, before the second cavity C2 is formed, the sliding mold 63 is slid toward the movable mold 62, and the first cavity C1 is formed between the movable mold 62 and the sliding mold 63. The process of forming the first cavity C1 and the second cavity C2 is called the first cavity forming process.
[0049] The first cavity C1 may be formed before the film fixing step (see FIG. 6). On the other hand, the second cavity C2 must be formed by fitting the film 15 to the first fixed mold 61.
[0050] Referring to Figure 8A, molten resin is poured into the first cavity C1 and the second cavity C2 (first resin pouring step), and the resin poured into the first cavity C1 and the second cavity C2 is cured (first resin curing step). By curing the poured resin, first resin parts 20, 30 and second resin part 40 can be obtained.
[0051] Also see Figure 3. Of the first resin parts 20 and 30, the first resin part main body parts 22 and 32 are formed by the first cavity C1, and the first resin part extension parts 23 and 33 are formed by the second cavity C2. On the other hand, the second resin part 40 is formed only by the second cavity C2.
[0052] 8B. After the resin has hardened, the movable mold 62 is raised while the sliding mold 63 is still sliding toward the movable mold 62 (movable mold and sliding mold raising step). Since the ink 15i has been transferred to the second resin part 40, it separates from the mount 15m and rises together with the movable mold 62.
[0053] The movable die 62 may be provided with a retractable claw or the like (not shown) for holding the second resin part 40.
[0054] See Fig. 5. Next, the movable die 62 and the sliding die 63 are rotated (moved) to above the second fixed die 65 (resin part moving step).
[0055] When two movable dies 62 and two sliding dies 63 are provided, the other movable die 62 and sliding die 63 move above the first fixed die 61 (see FIG. 4).
[0056] 9 and 10A, the movable mold 62 and the sliding mold 63 are lowered and aligned with the second fixed mold 65 to form the third cavity C3 (second cavity forming step).
[0057] 10B. Molten resin is poured into the third cavity C3 (second resin pouring step), and the resin poured into the third cavity C3 is cured (second resin curing step). The second resin curing step provides the support component 50, completing the resin molded product 10.
[0058] 11A. After the second resin curing step is completed, the slide mold 63 is retracted (slide mold retracting step), and as shown in FIG. 11B, the movable mold 62 and the slide mold 63 are raised (movable mold retracting step). This allows the resin molded article 10 to be removed from the second fixed mold 65.
[0059] Alternatively, the resin molded product 10 may be moved to a specific location and the slide mold 63 and the movable mold 62 may be retracted.
[0060] The manufacturing technique for the resin molded product 10 described above will be summarized below.
[0061] 7A, first, the method for manufacturing a resin molded product includes a preparation step of preparing an immovable first fixed mold 61, a movable mold 62 provided so as to be displaceable in one direction (up and down) relative to this first fixed mold 61, a sliding mold 63 provided so as to be slidable in a direction different from the one direction relative to this movable mold 62, and a film 15 on which ink 15i to be transferred is adhered, and a film fixing step of fixing the film 15 to the first fixed mold 61 so that the surface on which ink 15i is adhered faces the movable mold 62.
[0062] 7B, the method further includes a first cavity forming step of sliding the slide mold 63 to form a first cavity C1 with the slide mold 63 and aligning the slide mold 63 with the first fixed mold 61 to which the film 15 is fixed, thereby forming a second cavity C2 with the first fixed mold 61 and the moveable mold 62.
[0063] 8A, the method further includes a first resin pouring step of pouring molten resin into the first cavity C1 and the second cavity C2, and a first resin curing step of curing the resin poured into the first cavity C1 and the second cavity C2 to obtain a first resin part 20 cured in the first cavity C1 and a second resin part 40 cured in the second cavity C2.
[0064] Referring to Figure 7B, in the first cavity forming step, the ink 15i is present only in the second cavity C2.
[0065] The ink 15i is exposed only to the second cavity C2, and not to the first cavity C1. The ink 15i is not transferred to the first resin part 20 (first resin part main body 22, 32) formed in the first cavity C1, but is transferred only to the area formed by the second cavity C2. This makes it possible to simultaneously form the first resin part 20, which includes an area where it is necessary to prevent the ink 15i from being transferred, and the second resin part 40, at least a portion of which needs to be printed. The resin molded product 10 (see FIG. 1) can be manufactured with fewer processes.
[0066] 10B. Second, a method for manufacturing a first resin molded product includes a preparation step in which an immovable second fixed mold 65 separate from the first fixed mold 61 (see FIG. 4) is prepared, a resin part moving step in which the movable mold 62 and the sliding mold 63 are moved to a position facing the second fixed mold 65 while holding the first resin part 20 and the second resin part 40, a second cavity forming step in which the movable mold 62 moved to the second fixed mold 65 is aligned with the second fixed mold 65 to form a third cavity C3, a second resin pouring step in which molten resin is poured into the third cavity C3, and a second resin curing step in which the resin poured into the third cavity C3 is cured to obtain a support part 50 that supports the first resin part 20 and the second resin part 40.
[0067] Because the first resin part 20 and the second resin part 40 can be formed simultaneously, they can be moved together to the second fixed mold 65 and supported and connected by the support part 50. Compared to the case where the first resin part 20 and the second resin part 40 are moved separately to the second fixed mold 65 to form the support part 50, the resin molded product 10 (see FIG. 1) can be manufactured in fewer steps.
[0068] See FIG. 7B. Third, the resin molding die 60 has an immovable first fixed die 61, a movable die 62 that is displaceable in one direction relative to the first fixed die 61, and a sliding die 63 that is slidable in a direction different from the one direction relative to the movable die 62. The first fixed die 61 has a mounting portion 61a on which the film 15 with ink 15i attached is placed. By sliding the sliding die 63, resin can be poured between the movable die 62 and the sliding die 63, and when the poured resin hardens, a first cavity C1 that becomes the first resin part 20 (see FIG. 8A) is formed. By matching the movable die 62 with the first fixed die 61, resin can be poured into the area facing the mounting portion 61a, and when the poured resin hardens, a second cavity C2 that becomes the second resin part 40 is formed.
[0069] The ink 15i can be exposed only to the second cavity C2, and not to the first cavity C1. The ink 15i is not transferred to the first resin part 20 (first resin part main body 22, 32, see FIG. 8A) formed in the first cavity C1, but is transferred only to the portion formed by the second cavity C2. This makes it possible to simultaneously form the first resin part 20, which includes a portion where it is necessary to prevent the ink 15i from being transferred, and the second resin part 40 (see FIG. 8A), at least a portion of which needs to be printed. By using the resin molding die 60, the resin molded product 10 (see FIG. 1) can be manufactured with fewer processes.
[0070] 10A. Fourth, the third resin molding mold 60 further includes an immovable second fixed mold 65 separate from the first fixed mold 61 (see FIG. 7B). By aligning the movable mold 62 on which the first resin part 20 and the second resin part 40 are formed with the second fixed mold 65, it is possible to pour resin into the mold, and as the poured resin hardens, a third cavity C3 is formed that becomes the support part 50 that supports the first resin part 20 and the second resin part 40.
[0071] Because the first resin part 20 and the second resin part 40 can be formed simultaneously, they can be moved together to the second fixed mold 65 and supported and connected by the support part 50. The resin molded product 10 (see FIG. 1) can be manufactured in fewer steps than when the first resin part 20 and the second resin part 40 are moved separately to the second fixed mold 65 to form the support part 50. By using the resin molding mold 60, the resin molded product 10 (see FIG. 1) can be manufactured in fewer steps.
[0072] 2. Fifth, the resin molded product 10 includes first resin parts 20, 30, which are resin parts, a second resin part 40, which is also a resin part provided at a distance from the first resin parts 20, 30, and a support part 50 that integrally supports the first resin parts 20, 30 and the second resin part 40. When the surfaces of the first resin parts 20, 30 facing the support part 50 are defined as first support surface parts 21, 31, and the surface of the second resin part 40 facing the support part 50 is defined as a second support surface part 43, at least a portion of the first support surface parts 21, 31 exposes the resin that constitutes the first resin parts 20, 30 to the outside, and at least a portion of the second support surface part 43 is printed.
[0073] By exposing the resin constituting the first resin parts 20, 30 to the outside at least in a portion of the first support surface portions 21, 31, light reflected within the first resin parts 20, 30 can be prevented from being absorbed by the printed ink 15i, allowing the product to shine farther from the light source. Furthermore, the entire second support surface portion 43 is printed. If the first resin parts 20, 30 and the second resin part 40 were formed separately and printed after being attached to the support part 50, it would be impossible to print the entire second support surface portion 43. Because the first resin parts 20, 30 and the second resin part 40 are molded simultaneously and the support part 50 is integrally formed, the entire second support surface portion 43 can be printed. The resin molded product 10 manufactured in this manner can be manufactured with fewer processes.
[0074] Although the manufacturing technology for resin molded products according to the present invention has been described using an example of a part used in a vehicle dashboard, it is applicable to other parts in the vehicle interior and resin molded products for purposes other than vehicles, and is not limited to these types. In other words, the present invention is not limited to the examples as long as the functions and effects of the present invention are achieved. [Industrial Applicability]
[0075] The resin molded article of the present invention is suitable as a decorative part for the interior of a vehicle. [Explanation of symbols]
[0076] 10…Resin molded product 15...Film, 15i...Ink 20, 30...First resin part 21, 31...first support surface portion 40...Second resin part 43...second support surface portion 50...Support parts 60...Resin mold 61...first fixed mold, 61a...mounting portion 62…Movable type 63...Slide type 65…Second fixed type C1...first cavity C2: Second cavity C3...third cavity
Claims
1. a preparation step of preparing an immovable first fixed mold, a movable mold provided so as to be displaceable in one direction relative to the first fixed mold, a sliding mold provided so as to be slidable in a direction different from the one direction relative to the movable mold, and a film on which the ink to be transferred is adhered; a film fixing step of fixing the film to the first fixed mold so that the surface on which the ink is applied faces the movable mold; a first cavity forming step of sliding the slide mold to form a first cavity together with the movable mold and the slide mold, and aligning the movable mold with the first fixed mold to which the film is fixed to form a second cavity together with the first fixed mold and the movable mold; a first resin pouring step of pouring molten resin into the first cavity and the second cavity; a first resin curing step of curing the resin poured into the first cavity and the second cavity to obtain a first resin part cured in the first cavity and a second resin part cured in the second cavity, A method for manufacturing a resin molded product, wherein in the first cavity forming step, the ink is exposed only to the second cavity.
2. In the preparation step, a second fixed die that is immovable and separate from the first fixed die is prepared; a resin part moving step of moving the movable die and the sliding die to a position facing the second fixed die while holding the first resin part and the second resin part; a second cavity forming step of aligning the movable mold, which has been moved to the second fixed mold, with the second fixed mold to form a third cavity; a second resin pouring step of pouring molten resin into the third cavity; 2. The method for manufacturing a resin molded product according to claim 1, further comprising: a second resin curing step of curing the resin poured into the third cavity to obtain a support component that supports the first resin component and the second resin component.
3. The apparatus has a first fixed mold that is immovable, a movable mold that is provided so as to be displaceable in one direction relative to the first fixed mold, and a sliding mold that is provided so as to be slidable in a direction different from the one direction relative to the movable mold, the first fixed die has a placement portion on which a film having ink attached thereto is placed, By sliding the slide mold, it is possible to pour resin between the movable mold and the slide mold, and a first cavity that becomes a first resin part is formed by hardening the poured resin; A resin molding mold in which, by matching the movable mold with the first fixed mold, it is possible to pour resin into the area facing the placement portion, and when the poured resin hardens, a second cavity is formed which becomes a second resin part.
4. The apparatus further includes a second fixed die that is immovable and separate from the first fixed die, 4. The resin molding mold according to claim 3, wherein resin can be poured into the movable mold on which the first resin part and the second resin part are formed by aligning the movable mold with the second fixed mold, and the poured resin hardens to form a third cavity that serves as a support part for supporting the first resin part and the second resin part.
5. The device has a first resin component that is a component made of resin, a second resin component that is a component made of resin and is provided at a distance from the first resin component, and a support component that integrally supports the first resin component and the second resin component, When a surface of the first resin component facing the support component is defined as a first support surface portion, and a surface of the second resin component facing the support component is defined as a second support surface portion, At least a portion of the first support surface portion exposes the resin constituting the first resin component to the outside, The second support surface portion is a resin molded product, at least a portion of which is printed.
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