Toy Parts

Abstract

To provide a mold component or the like that is not limited in shape or structure of a molded product that can be molded.SOLUTION: There is provided a mold component to be disposed in a molding mold that is composed of a first mold and a second mold, and which forms a molded product corresponding to a shape of a cavity by injecting a molding material into an inside of the cavity. The mold component includes a first mold component and a second mold component, which are inserted into and drawn out of the mold for molding by sliding from a side surface thereof which is orthogonal to a contact area between the first mold and the second mold. The first mold component and the second mold component form a hollow portion connecting a first opening of the molded product to a second opening thereof.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to Toy Parts Regarding. [Background technology]

[0002] Generally, molded objects such as plastic models made from resin are constructed by connecting a plurality of parts to be assembled to a runner (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-142578 A Summary of the Invention [Problem to be solved by the invention]

[0004] Such molded products are produced by solidifying the molding material that is poured into the cavity formed between the fixed and movable sides of the injection mold. The shape and structure of the molded product produced depend on the shape of the injection mold.

[0005] An object of the present invention is to provide a mold part, a molding mold, and a molding method for a molded product, which are not limited in terms of the shape or structure of the moldable product. [Means for solving the problem]

[0006] The present invention relates to, for example, a mold part that is placed in a molding mold consisting of a first mold and a second mold for injecting a molding material into an internal cavity to produce a molded product corresponding to the shape of the cavity, the mold part including a first mold part and a second mold part that are inserted and removed by sliding from a side of the molding mold perpendicular to the contact surface between the first mold and the second mold, and the first mold part and the second mold part form a hollow portion connecting a first opening to a second opening of the molded product. The present invention also relates to a toy component for an assembly-type doll toy, comprising: a part; and a runner part connected to the part, the part having an internal cavity and being integrally molded, the cavity connecting a first opening and a second opening on the opposite side of the first opening, the runner part including a first runner part connected to the part and a second runner part connected to the first runner part, the runner part of the second runner part arranged on the side of the first opening including a first portion formed so as to straddle an area facing the first opening, and the runner part of the second runner part arranged on the side of the second opening including a second portion formed so as to straddle an area facing the second opening.

[0007] Another aspect of the present invention is, for example, a molding die having the above-mentioned die parts, comprising a first die and a second die, and at least one of the first die and the second die has a runner groove formed so as to bypass the insertion and removal paths of the first die part and the second die part.

[0008] Yet another aspect of the present invention is, for example, a method for molding a molded product, which includes a first step of injecting molding material into the above-mentioned molding die in which the first mold part and the second mold part are arranged in predetermined positions to mold a molded product consisting of a plurality of parts connected to a runner, a second step of removing the first mold part from the molding die, a third step of removing the second mold part from the molding die, and a fourth step of removing the molded product. Effect of the Invention

[0009] The present invention can provide a mold part, a molding die, and a molding method for a molded product, which are not limited in terms of the shape or structure of the moldable product. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a cross-sectional view illustrating a molding device 10 according to an embodiment. [Diagram 2] 4 is a flowchart corresponding to an example of a molding method for a molded product according to the embodiment. [Diagram 3]FIG. 2 is a diagram showing an example of the appearance of a molded product according to the embodiment. [Figure 4] 13A to 13C are diagrams showing examples of how slide mold parts are used to explain a molding method for a molded product. [Diagram 5] FIG. 4 is a diagram for explaining the correspondence between the surfaces constituting the molded product and the slide mold parts. [Figure 6] FIG. 13 is a diagram showing an example of a runner configuration for ensuring an insertion / removal path for slide mold parts. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments will be described in detail with reference to the attached drawings. The following embodiments do not limit the invention according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the invention. Two or more of the features described in the embodiments may be arbitrarily combined. The same reference numbers are used for identical or similar configurations, and duplicated descriptions are omitted. In each figure, the top, bottom, left, right, front, and back directions relative to the paper surface are used in the description in the text as the top, bottom, left, right, front, and back directions of the parts (or components) in this embodiment. In the embodiments described below, the present invention assumes a resin material as a molding material, but is not limited to this, and other materials (thermoplastic resins such as polystyrene, polyethylene, and ABS, thermosetting resins, metals, etc.) can also be applied.

[0012] Figure 1 shows a cross-sectional view of a molding apparatus 10 corresponding to an embodiment of the invention. As shown in Figure 1, molding apparatus 10 of this embodiment has a movable mold body 102 attached to the moving side of a molding material injection device (not shown) that injects molding material, and a fixed mold body 103 attached to the fixed side of the molding material injection device. Runner grooves into which the molding material flows are formed in each of the movable mold body 102 and the fixed mold body 103.

[0013] The movable mold body 102 has a male mold mounting plate 107 to which a male mold 106 is attached, a fixed base 108 to which the male mold mounting plate 107 is fixed, a movable side mounting plate 109 to which a molding material injection device is attached, and a spacer 110 provided between the fixed base 108 and the movable side mounting plate 109. The male mold 106 and the male mold mounting plate 107 may be integrally configured, or may be independently configured as separate bodies. A cavity 111 is formed in the fixed base 108, and a movable push plate 112 is provided in the cavity 111. The push plate 112 is fixed to a pressing shaft 116 provided in openings 114 and 115 formed in the fixed base 108 and the movable side mounting plate 109. In addition, a knockout pin 113 penetrating the male mold mounting plate 107 and the male mold 106 is formed in the push plate 112. Here, by moving the push-out plate 112, the tip of the knock-out pin 113 is formed to protrude into the runner groove.

[0014] The fixed mold body 103 has a fixed mounting plate 117 attached to a molding material injection device, a female mold mounting plate 119 to which a female mold 118 is attached, and a spacer 120 provided between the fixed mounting plate 117 and the female mold mounting plate 119. The female mold 118 and the female mold mounting plate 119 may be integrally configured, or may be configured as separate, independent bodies. A sprue bush 104 for injecting molten molding material from a molding injection device is attached to the fixed mold body 103. The sprue bush 104 penetrates the fixed mounting plate 117 and extends to the female mold 118, and a sprue 105 is formed inside the sprue bush 104, which serves as a supply flow path for molten resin. A runner groove formed in the female mold 118 and the male mold 106 communicates with the sprue 105, and the molding material flows into a molding space (cavity) formed in the female mold 118 and the male mold 106 through the runner groove.

[0015] The male mold 106 and the female mold 118 each have a concave-convex shape, and the concave-convex shapes combine to form a cavity that defines the outer shape of the molded product. The molding material flows into the cavity, and when it cools and hardens, a molded product corresponding to the cavity shape is formed. Hereinafter, the male mold 106 and the female mold 118 are collectively referred to as the molding die.

[0016] The molding die is configured to include a plurality of die parts configured to be insertable into and removable from the molding die. The die parts are arranged on the contact surface between the male die 106 and the female die 118, and are inserted into a cavity formed in the molding die from a side surface of the molding die perpendicular to the contact surface. This makes it possible to prevent the molding material from flowing into the inside of the cavity defined by the male die 106 and the female die 118, and makes it possible to form a hollow or cylindrical molded product.

[0017] In this embodiment, by inserting mold parts from multiple directions into a cavity for molding one molded product, it is possible to mold a molded product with a shape that cannot be achieved with a single mold part. In this embodiment, the above-mentioned mold parts are called slide mold parts.

[0018] In the molding apparatus 10 shown in FIG. 1, molding material is poured into the runner grooves and the cavities for forming each part to form a molded product, and then the movable mold body 102 is separated from the fixed mold body 103, and then the sliding mold parts are separated from the movable mold body 102. After all the sliding mold parts have been separated, the pressing shaft 116 is pressed to move the push-out plate 112, and the knock-out pin 113 provided on the push-out plate 112 pushes out the molded product attached to the male mold 106 that constitutes the movable mold body 102, and the molded product can be removed.

[0019] FIG. 1 is a diagram showing an example of the structure of the molding apparatus 10, and the structure of the molding apparatus 10 is not limited to that shown in FIG. 1 and can be modified in various ways.

[0020] Next, a molding method of the molded product according to this embodiment will be described with reference to FIG. 2. First, in S201, the male mold 106 is set on the movable mold body 102 of the molding device 10, and then in S202, the first slide mold part is set, and in S203, the second slide mold part is set. Here, the first slide mold part and the second slide mold part are set as a pair of mold parts, and a hollow molded product can be molded by a combination of the two slide mold parts, the male mold 106, and the female mold 118. In addition, a plurality of pairs of the slide mold parts can be included for the male mold 106 and the female mold 118. In addition, three or more slide mold parts may be combined for one molded product.

[0021] The first slide mold part and the second slide mold part can be attached to a predetermined slide mechanism of the movable mold body 102 of the molding device 10. By the slide mechanism, each slide mold is slid (slid) in a predetermined direction and inserted into a cavity formed by the male mold and the female mold before the molding material is charged, and is removed after the molding material has solidified.

[0022] In the next step S204, the movable mold body 102 including the slide mold parts is moved to the fixed mold body 103 side and combined with the fixed mold body 103. In the next step S205, molding material is injected from the sprue 105, and the molding material flows into the cavity formed by the male mold 106, female mold 118, and slide mold parts. After that, when the molding material cools and hardens, the movable mold body 102 is separated from the fixed mold body 103. At this point, the molded product is attached to the movable mold body 102 side.

[0023] In the next step S207, the first slide mold part is separated from the inside of the molded product by the slide mechanism of the molding device 10, and in the next step S208, the second slide mold part is separated from the inside of the molded product by the slide mechanism of the molding device 10. If the molded product is to be removed before the slide mold parts are separated, the molded product may be damaged, so the molded product is removed after all the slide mold parts are separated. In the next step S209, the push plate 112 is moved to project the tip of the knockout pin 113 into the runner groove, thereby removing the molded product.

[0024] Next, an example of the configuration of a molded product according to this embodiment is shown with reference to Fig. 3. Fig. 3(A) is a diagram showing an example of the appearance of the molded product 300 from a direction in which the opening 301 of the molded product 300 faces the front. Fig. 3(B) is a diagram showing an example of the appearance of the molded product 300 from a direction in which the opening 301 of the molded product 300 faces the left side. Fig. 3(C) is a diagram showing an example of the appearance of the molded product 300 from the bottom side of the molded product 300.

[0025] Molded product 300 shown in Fig. 3 is a hollow model part having two openings, opening 301 on the front surface and opening 303 on the bottom surface, which are connected to each other. Molded product 300 is configured so as to be connectable to other molded products via openings 301 and 303, thereby forming a part of a completed toy body. Openings 301 and 303 are formed on different surfaces of molded product 300, but the arrangement of the openings is not limited to the form shown in Fig. 3.

[0026] Although a model part having a shape like molded product 300 can be made by combining two molded products, this embodiment assumes molding as a single part. Therefore, the hollow part connecting opening 301 to opening 303 needs to be formed by expelling the molding material from the cavity using a slide mold part. In this case, if one tries to mold the hollow part using only a single slide mold part, it is necessary to open the part shown by the shaded area 304 in Fig. 3. However, if opening 301 is made larger, the internal structure becomes visible from the outside, which is not preferable.

[0027] Therefore, in this embodiment, by combining a slide mold part (first slide mold part) that is inserted from the opening 303 side to form a hollow portion, and a slide mold part (second slide mold part) that forms the edge 302 of the opening 301, it is possible to form a hollow portion while keeping the opening 301 as small as possible.

[0028] Fig. 4 is a cross-sectional view showing an example of the relationship between the slide mold parts and the male mold 106. In Fig. 4, (A) shows a case where only a single slide mold part 401 is used, and (B) shows a case where slide mold parts 411 and 412 are used.

[0029] 4(A), the slide mold part 401 is inserted from the bottom side of the male mold 106, with the top side protruding. This allows molding of a hollow molded product 400. However, at this time, the opening on the top side of the molded product 400 must be in a shape that does not interfere with removal of the slide mold part 401.

[0030] In contrast, in FIG. 4B, the slide mold part 411 is inserted from the bottom side of the male mold 106, and the slide mold part 412 is inserted from the diagonally upward direction of the male mold 106 into the top side. This allows the molding of a hollow molded product 410. In this way, the slide mold part 411 and the slide mold part 412 are inserted and removed from different sides of the molding die. At this time, the shape of the opening on the top side of the molded product 410 is determined by the combination of the slide mold part 411 and the slide mold part 412. That is, of the opening, a first part that does not interfere with the withdrawal of the slide mold part 411 can be formed by the slide mold part 411, and the remaining second part can be formed within a range that does not interfere with the withdrawal of the slide mold part 412. Alternatively, the entire opening (especially the edge part) may be formed by the slide mold part 412. This allows the use of multiple slide mold parts with different withdrawal directions to realize a shape that could not be formed by a single slide mold part.

[0031] Next, the configuration of the hollow portion of the molded product 300 will be described with reference to Fig. 5. Fig. 5(A) shows an example of the cross-sectional configuration of the molded product 300 when viewed from one direction in the AA cross section of the molded product 300 in Fig. 3(A). Fig. 5(B) shows an example of the cross-sectional configuration of the molded product 300 when viewed from the opposite direction in the AA cross section of the molded product 300 in Fig. 3(A).

[0032] At this time, the area corresponding to inner wall portion 501 continuing from lower opening 303 of molded product 300 can be molded by a first slide mold part corresponding to slide mold part 411 in Fig. 4. Also, the area corresponding to the portion shown as edge portion 302 of opening 301 of molded product 300 in Fig. 3 can be molded by a second slide mold part corresponding to slide mold part 412 in Fig. 4. In this way, by combining slide mold parts, it is possible to mold a molded product having a shape that could not be molded by a single slide mold part.

[0033] Next, an example of a runner structure for securing an insertion / removal path for slide mold parts will be described with reference to Fig. 6. Fig. 6(A) is a diagram showing an example of a state in which slide mold parts are inserted, and Fig. 6(B) is a diagram showing an example of a state in which slide mold parts are removed. Note that in Fig. 6, the male mold 106 and the female mold 118 are omitted.

[0034] As shown in FIG. 6(A), the slide mold part 602 is inserted into the molded product 601. At this time, the molded product 601 is connected to the runner 603. The runner part 603 of the runner that exists in the insertion / removal direction of the slide mold part is shaped to bypass (or straddle) the slide mold part 602. As a result, as shown in FIG. 6(B), the insertion / removal path of the slide mold part 602 is secured, so that the runner part 603 does not get in the way during insertion / removal. If the runner part 603 exists in a position overlapping with the slide mold part 602, it becomes impossible to inject the molding material into the runner groove, or the runner must be destroyed to remove the slide mold part 602. Therefore, in this embodiment, a runner groove is formed in at least one of the male mold 106 and the female mold 118 so as to bypass the slide mold part 602 or its insertion / removal path.

[0035] Figure 6 shows a case where there is a runner part 603 in only one direction, but when using the two slide mold parts described above or more slide mold parts, the runners located in the insertion / removal direction of each slide mold part are arranged in a detour so as to ensure the insertion / removal path of the slide mold part.

[0036] According to the molding die corresponding to the above-described embodiments, by combining two or more slide die parts, it is possible to mold a molded product having a shape that could not be molded with a single slide die part.

[0037] <Summary of the embodiment> The above-described embodiments disclose at least the following mold parts, molding molds, and molding methods for molded products. (1) A mold part to be placed in a molding mold including a first mold and a second mold for injecting a molding material into an internal cavity to produce a molded product corresponding to the shape of the cavity, The molding die includes a first die part and a second die part which are inserted and removed by sliding from a side surface of the molding die perpendicular to a contact surface between the first die and the second die, The first and second mold parts form a hollow portion connecting a first opening to a second opening of the molded article. (2) The mold part described in (1), wherein the first mold part forms an inner wall continuing from the first opening of the molded body, and the second mold part forms an edge of the second opening of the molded body. (3) The mold part according to (2), wherein the first opening and the second opening are formed on different surfaces of the molded product. (4) A mold part described in any one of (1) to (3), wherein the first mold part and the second mold part have different insertion and removal directions. (5) A mold part according to any one of (1) to (4), wherein the first mold part and the second mold part are inserted and removed from different sides of the molding die. (6) A molding die comprising the die part according to any one of (1) to (5), A first mold and a second mold are provided, A molding die having a runner groove formed in at least one of the first die and the second die so as to bypass the insertion and removal paths of the first die part and the second die part. (7) In the molding die according to (6), a first step is to inject a molding material into the molding die in which the first die part and the second die part are disposed in predetermined positions, thereby forming a molded product in which a plurality of parts are connected to a runner; a second step of removing the first mold part from the molding die; a third step of removing the second mold part from the molding die; A fourth step of removing the molded product; A method for molding a molded article, comprising the steps of:

[0038] The invention is not limited to the above-described embodiment, and various modifications and variations are possible within the scope of the gist of the invention.

Claims

1. A toy part for an assembly-type doll toy, Parts and A runner part connected to the part, The parts are: It has a cavity inside and is molded as a single piece. the cavity connects a first opening to a second opening opposite the first opening; The runner part is a first runner part connected to the part; a second runner part connected to the first runner part, the second runner part, a runner part disposed on a side of the first opening, includes a first portion formed so as to span an area facing the first opening; Among the second runner parts, a runner part disposed on the side of the second opening includes a second portion formed so as to span an area facing the second opening. Toy parts.

2. The toy part of claim 1 , wherein the first opening and the second opening are formed in different faces of the part.

3. The first opening is configured to open from a top surface to a side surface of the part; The toy part according to claim 2 , wherein the second opening is provided in a bottom surface of the part.

4. 4. The toy part of claim 3, further comprising a protrusion on the inside of said cavity.

5. The first opening and the second opening are used for joining with other parts, The toy part according to claim 4 , wherein the protrusion is formed from the first opening toward the second opening.

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