JP2011126128A - Mold apparatus for resin molding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mold various vehicle interior parts variously changed in appearance, feel or the like by one molding machine or one mold. <P>SOLUTION: In the mold apparatus 1 for resin molding having a cavity 11 and a core 12 and molding the design panel of a vehicle interior article by injecting resin in a space formed by clamping the cavity 11 and the core 12, the movable mold 13, which is provided at the cavity or the core and forms at least a part 13c of the molding surface for forming the space and can be moved in a direction narrowing or widening the space, and a movable mold control part 15 for controlling the moving position of the movable mold are provided. The movable mold 13 is preliminarily moved by a predetermined interval and the resin is injected in the space to partially change the shape of a vehicle interior article design panel 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a resin molding die apparatus that is compatible with various types of molding of interior parts in a vehicle interior.

When manufacturing a side panel of a conventional console box, a single product is generally manufactured with a single mold. However, if the same side panel shape is used, for example, a two-tone combination of two colors or a different material (soft material such as elastomer) on the surface to produce a product with a different look and feel, a molding machine and mold It is necessary to prepare a new type. 10 (a) is a side view of a conventional side panel, and FIG. 10 (b) is a cross-sectional view taken along the line AA of FIG. 10 (a). After forming the parts configuration (front side panel 71, rear side panel 72) and molding them individually, the side panel 7 is obtained by combining each fitting hole and fitting projection. However, in order to obtain molded products of the front side panel 71 and the rear side panel 72, it is necessary to prepare two molding machines and molds for the front side panel 71 and the rear side panel 72. In addition, there is a two-color molding method as a method of integrally molding a two-part configuration with a single molding machine. The mold cavity 2 on the primary molding side (for example, beige color) and the secondary molding side (for example, brown color). The two surfaces of the core mold are rotated by 180 ° with respect to the surface, and the primary side and the secondary side are switched, and two mold cavities and cores are required. In the following Patent Document 1, the base material of the door trim is set in a mold, and the resin material of the skin material is molded and integrated to form a door trim with a skin. However, only one type can be molded per mold, making it difficult to increase variations.

Japanese Patent No. 310724

Therefore, in addition to the two-tone color, there are various variations in which the skin is partially applied depending on the vehicle grade and vehicle type, or different and different colors, but in the above prior art, the corresponding molds increase accordingly, and the cost of the parts Has led to up.

An object of the present invention is to obtain a vehicle interior product with various appearances and touch feelings by using a single molding machine and mold.

The invention of claim 1 is a resin molding mold apparatus for a design panel of an interior product for a vehicle, which is provided with a cavity and a core and is molded by injecting resin into a space created by clamping of both molds. Alternatively, a movable mold that is provided in the core and forms at least a part of a mold surface that forms the space and is movable in a direction of narrowing or expanding the space, and a movable mold for controlling the movement position of the movable mold A control unit is provided, and the shape of the vehicle interior product design panel is partially changed by previously moving the movable mold at a predetermined interval and injecting resin into the space.

The invention of claim 2 is the resin molding die apparatus according to claim 1, wherein a molding injection part for primary molding resin and secondary molding resin for separating at least two different resin materials is provided, The movable mold control unit moves the movable mold at a predetermined interval in the direction of narrowing the space or in an initial state, and the primary molding resin is injection molded from the molding injection unit, and the movable mold is moved in the direction of expanding the space. The secondary molding resin is injection-molded and can be controlled to be integrally molded.

According to a third aspect of the present invention, in the mold apparatus for resin molding according to the first or second aspect, a cavity or a core in which a mold surface forming the space of the movable mold is in a direction of narrowing the space. When the resin injection molding in the mold, the sealing shape is formed so that the resin does not flow into the mating part of the movable mold surface. The present invention is characterized in that a vehicle interior design panel having no shape of a movable mold surface portion can be formed.

  According to the first aspect of the present invention, a part of the vehicle interior design panel can be changed to a decoration or a different material by partially changing the shape with the movable mold in the resin molding die. It is possible to increase the types of interior design panels for vehicles by dividing the shape and combining with other parts.

According to the second aspect of the present invention, the primary molding resin is injected in a state where the movable die in the resin molding die is moved and the plate thickness of the molded product is partially reduced. The movable mold is moved to the state returned to the state, and a secondary molding resin that is a resin having a different color and characteristics is injected and integrally molded, and a movable mold control unit that controls the movable position of the movable mold is provided. This enables two-color molding.

According to the third aspect of the present invention, a vehicle interior product that is partially molded by injection molding in a state where the cavity surface and the core surface are partially closed by the movable mold in the resin molding die. A design panel can be obtained. When injection molding is performed in a state where the movable mold surface is aligned with the mold surface of the core or the cavity, the resin flow is sealed in the movable mold space.

As described above, the resin molding mold according to the present invention can produce various variations of interior panels by providing a movable mold that partially changes the shape of the molded product.

(a) is a side view of a monochromatic / single-shaped side panel according to an embodiment of the present invention. (B) is the BB cross section of (a). (a) is the side view of the side panel at the time of shape | molding with the two-tone color or different material in embodiment of this invention. (B) is the CC cross section of (a). It is a side view of the side panel at the time of adding a shape partially in the embodiment of the present invention. (a) is a side view of a side panel in which an embodiment of the present invention is combined into two parts in which a skin such as genuine leather or cloth is wound on one side. (B) is a DD cross section of (a). (a) is the side view of the side panel which divided into 2 parts in the embodiment of the present invention, and combined the thing of different shape. (B) is the EE cross section of (a). The whole planar view of the metal mold | die in embodiment of this invention is shown. FIG. 7 is a cross-sectional view taken along line FF in FIG. 6 when a single color / single shape is manufactured according to the embodiment of the present invention. FIG. 6F-F cross-section in the embodiment of the present invention when two-tone color and different material molding are performed, (a) shows molding in a state where the mold is closed by the skin thickness, and (b) is obtained in (a). A state of a mold apparatus in which the mold is closed and the secondary molding resin is injection-molded to be integrally molded is shown. FIG. 7 is a cross-sectional view taken along the line FF in FIG. 6 in the case of dividing into two in the embodiment of the present invention. (a) is a side view of the side panel of the prior art side panel divided into two tones, and (b) is a cross-sectional view taken along line AA of (a).

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1A is a side view of the single-color / single-shaped side panel of the present invention. (b) is the BB cross section of (a). In the mold 1, as shown in FIG. 7, a hydraulic cylinder 14 including a core 12, a cavity 11, a movable mold 13 built in the cavity, and a piston rod 14 a that operates the movable mold 13 in the thickness direction of the resin molded product. A movable control unit 15 for controlling the movable mold 13 through the operation in the hydraulic cylinder 14 is provided outside. When the side panel 61 having a single color and a single shape is formed, it is obtained by forming the movable mold 13 in the state shown in FIG.

  FIG. 2A is a side view of the side panel 31 when the two-tone color or different material of the present invention is used. (b) is a CC cross section of (a). In the mold 1, as shown in FIG. 8 (a), the primary resin material is first injection-molded (primary molded product) from the primary resin material molding injection part (not shown) with the skin thickness closed. Next, as shown in FIG. 8 (b), the mold is closed by the thickness of the skin, and a different material such as a soft material is poured as a secondary molding resin from the secondary resin material molding injection part (not shown). Side panels molded with two-tone colors or different materials.

FIG. 3 is a side view of the side panel 41 with terminal extension when a shape is partially added according to the present invention. Normally, in the case of FIG. 1 (the state in which the terminal extension 41a is not present in FIG. 3), the mold 1 is in a state corresponding to FIG. The part is closed, but when the terminal extension 41a is present in FIG. 3, the movable mold 13b is moved in the mold 1 as shown in FIG. To form a side panel 41 with terminal extension.

  FIG. 4 (a) is a side view of the side panel 51 with a skin, which is a two-part split of the present invention and is combined with a leather, cloth, or other skin wound on one side. (b) is a DD cross section of (a). In the mold 1, in the state shown in FIG. 9, the rear portion of the side panel 51 with the skin is divided into the thickness of the front portion of the panel by the front panel movable mold 13 a and the rear side panel 51 b is divided. , And the front part of the side panel in which the skin of genuine leather, cloth, etc. is wound is molded on the other cavity surface in the same mold 1 (51c in FIG. 6), and is wound into the skin and the side with the front skin is formed. A panel 51a is created. Then, the rear side panel 51b, which is the rear portion of the side panel, and the front side panel 51a, which is the front portion of the side panel, are assembled by fitting to complete the side panel 51 with skin.

FIG. 5A is a side view of the odd-shaped side panel 52 that is divided into two parts according to the embodiment of the present invention and is combined with different-shaped ones. (b) is the EE cross section of (a). In the mold 1, the rear side panel 51 b which is the rear part of the side panel is molded in the state of the front panel movable mold 13 a in FIG. 9 as in the description of FIG. The front side-shaped side panel 52a is formed on another cavity surface (52c in FIG. 6) in the same mold 1 and is completed by fitting and assembling. In FIG. 4, the present invention is divided into two parts, and a leather, cloth, or other skin is wound on one side, which corresponds to an irregular shape.

  FIG. 6 shows a plan view of the entire cavity 11 of the mold 1 in the embodiment of the present invention. All of the molding of the side panel parts used for the side panel in each of the drawings of the present invention (FIGS. 1 to 5) can be handled in the cavity 11 of FIG. A wide variety of side panels are available. The front panel movable mold surface 13c, which is a part for molding the base shape of the cavity surface 3c of the side panel main body, is formed with a two-tone collar, a different material (see FIG. 2), or divided into two (see FIGS. 4 and 5). The front panel movable mold 13a is moved in the plate thickness direction to adjust the plate thickness. The terminal extending movable mold surface 13d is movable in the thickness direction when the terminal extending movable mold 13b is moved in the plate thickness direction when the shape is partially added (see FIG. 3). The mold 13b is fully closed. Thereby, the resin can be filled in the additional shape portion, or the filling can be stopped, and the presence or absence of the additional shape portion can be divided. The front side skin side panel cavity 51c is divided into two parts to produce a skin-coated side panel 51 (see FIG. 4), and the front side skin-equipped side panel 51a is formed. In this part, the resin is injected only when necessary. The front-side irregular-shaped side panel cavity surface 52c is a part for molding the front-side irregular-shaped side panel 52a, which is a shape exclusively for the irregular shape, when the irregular-shaped side panel 52 is manufactured in two parts (see FIG. 5). The resin is injected and molded only when necessary. By manufacturing parts by combining these components, a side panel having a different appearance and feel can be manufactured with a single molding machine / mold 1.

FIG. 7 is a cross-sectional view taken along the line FF in FIG. 6 when a single color / single shape is manufactured in the embodiment of the present invention. The mold 1 is composed of a core 12, a cavity 11, a movable mold 13 a built in the cavity, a hydraulic cylinder 14, and a piston rod 14 a in the hydraulic cylinder 14 that operates the movable mold 13 a in the thickness direction of the resin molded product. It is comprised including. In this figure, the movable mold is molded at the same position as the general plate thickness, and a single color single side panel 61 is obtained.

FIG. 8 is a cross-sectional view of FIG. 6F-F when two-tone collar and different material molding is performed in the embodiment of the present invention. FIG. The state of the mold apparatus in which the mold closure is returned to the molded product obtained in the above and the resin for secondary molding is injection-molded to be integrally molded is shown.
When a two-tone color or a different material as shown in FIG. 2 is integrally attached to the design surface of the primary molded product that is the base material, the front panel movable mold 13a is used during the primary molding as shown in FIG. The primary molding resin is subjected to primary injection molding from the primary molding resin molding injection portion 17b in a state where the mold 1 is closed by the thickness of the secondary molding. Then, as shown in FIG. 8 (b), the front panel movable mold 13a is opened with the secondary molding thickness die 1, and the two-tone color different from the primary molding resin or the primary molding resin of different material is used as the primary molding resin Injection secondary molding is performed from a molding injection part (not shown) for molding to complete the molding.

FIG. 9 is a cross-sectional view taken along line FF in FIG. 6 in the case of dividing into two parts according to the embodiment of the present invention. In this case, the movable mold 13 (13a, 13b) is fully closed so that the resin does not enter. In FIG. 9, the movable mold 13 (13 a, 13 b) is in full contact with the core 12, but it may have a partially contacting shape, and the movable mold 13 (13 a, 13 b) is only faced to the outer periphery of a desired shape, You may provide the cavity which does not contact an inside. The rear side panel 51b formed in this way, the front panel with side skin 51a in which the skin (genuine leather, cloth, etc.) of FIG. 4 is wound, and the front side non-skin-shaped side panel 52a of FIG. 5 are molded. The side panel 51 with a skin and the side panel 52 having a different shape are completed by combining those. Also, the present invention can be applied to the side panel with or without terminal extension shown in FIG.

  In the above embodiment, the side panel of the console box has been described as an example, but two or more kinds of materials or component configurations such as a console upper panel, a grab box, a cup holder, an overhead console, an engine cover, a door mirror, a rocker molding, etc. It can also be applied to interior and exterior resin parts. In the above embodiment, the parting line of the side panel may be at an arbitrary position. Further, in the mold according to the present embodiment, the movable mold is described with the installation of the cavity, but the mold may be installed on the core side or in a nested manner. Further, in FIG. 2, a movable mold is provided in the cavity and the design side is changed to a different material, but the side when the movable panel is installed on the core and the back side of the design is made of a different material such as an elastic material is mounted on the vehicle. Abnormal noise, scratches, and malfunctions due to component interference between the back side of the panel design and the harness or cable can be prevented. In the present invention, the plate thickness is changed with the movable type, but any shape can be changed, and the movable type can be moved in a direction thicker than the general plate thickness to be partially thickened. Although the hydraulic cylinder is used in the movable mold of the present embodiment, it may be pneumatic, or when installed in the core mold, the interlocking of the mold closing and mold opening of the injection molding machine may be used.

1 Mold (molding equipment for resin molding)
11 Cavity 11c Cavity mold surface 12 Core 12c Core mold surface 13 Movable mold 13c Movable mold surface 3 Side panel (design panel)
15
Movable control unit 17 Molding injection unit

Claims (3)

In a mold apparatus for resin molding of a design panel of an interior product for a vehicle, which includes a cavity and a core and is molded by injecting resin into a space created by clamping of both molds, provided in the cavity or the core, A movable mold that forms at least a part of the mold surface that forms the space and is movable in the direction of narrowing or expanding the space, and a movable mold control unit that controls the movement position of the movable mold are provided and movable in advance. A mold apparatus for resin molding, wherein a mold moves at a predetermined interval, and the shape of the vehicle interior design panel is partially changed by injecting resin into the space. 2. The mold apparatus for resin molding according to claim 1, wherein a molding injection section for primary molding resin and secondary molding resin for separating at least two different resin materials is provided, and the movable mold control section is movable. The mold is moved by a predetermined interval in the direction of narrowing the space or in an initial state, the resin for primary molding is injection molded from the molding injection part, and the secondary molding resin is injected in the state of moving the movable mold in the direction of widening the space. A mold apparatus for resin molding, which can be controlled to be molded and integrally molded. 3. The mold apparatus for resin molding according to claim 1, wherein a mold surface forming the space of the movable mold is in surface contact with a mold surface of a cavity or a core in a direction to narrow the space When the resin injection molding is performed in the mold at the moving position, a sealing shape is formed so that the resin does not flow into the surface-matching part of the mold surface of the movable mold. A mold apparatus for resin molding, characterized in that a vehicle interior design panel without any shape can be formed.

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