JP3043197B2 - Die equipment for manufacturing skin integrated laminate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal for producing a skin-integrated laminate for producing a skin-integrated laminate in which a skin is accurately layered and integrated from one surface of a synthetic resin molded core material to a tree end surface. It relates to a mold device.

[0002]

2. Description of the Related Art For example, as an interior material for an automobile such as a door trim for an automobile, a skin integrated laminate in which a skin material is layered and integrated on one surface of a synthetic resin molded core material has been widely used. With the diversification of, for example, synthetic resin molded core materials having a complicated shape having a folded portion at the peripheral edge tend to be required. In such a product, it is necessary to precisely layer and integrate the skin material in a state of being wound from one side of the synthetic resin molded core material to the terminal, that is, the end of the tree. -137771
As disclosed in Japanese Patent Application Publication No. 4 (1999) -1999, a method is employed in which a skin material is pushed into the wooden end face and rolled up using a split mold that slides horizontally from the side of the wooden end face.

However, in the above-mentioned method, the skin material whose terminal is clamped by the clamp mechanism is forcibly extended and then integrated with the wood end face of the synthetic resin molded core material. Therefore, there is a problem that after molding, the skin material shrinks due to residual stress of the skin material or heat shrinkage accompanying a heat resistance test, and a layer of the inner synthetic resin molded core material is exposed, resulting in poor appearance. In addition, since a special split mold and a clamp mechanism must be used, the molding process is complicated, and the apparatus itself is complicated.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and the skin material is firmly rolled up to the end face of the tree at the same time as the molding of the synthetic resin core material, and the layered material is integrated. In addition, the skin material does not shrink even after molding, has an excellent appearance, and can efficiently produce a high quality integrated skin laminate. The present invention has been completed for the purpose of providing a mold apparatus for producing a skin-integrated laminate which can be performed in a single step.

[0005]

Means for Solving the Problems A mold apparatus for producing a skin-integrated laminate according to the present invention, which has been made to solve the above-mentioned problems, comprises a male mold installed on a base and a male mold. A female mold which is movably opposed to each other to form a cavity whose peripheral end is opened to the outside as an end opening in the mold clamping state in the mold clamping state, and a female mold provided below the female mold to close the end opening A plate type having a tip for forming a wood end surface, and a clamp mechanism for clamping a terminal of a skin material disposed outside the male type and interposed between the male type and the female type between the plate type. The female die is formed in a concave notch having a lower end connected to a plate die receiving surface following the cavity surface and a tapered guide surface extending downward, and the plate die has the taper in the concave notch. It is slidably arranged along the guide surface. It is intended to.

[0006]

In the mold apparatus for producing a skin-integrated laminate, if the skin material is set in a state in which the terminal is supported by a receiving frame that can move up and down between the opened male mold and the female mold. If the female mold is lowered while the plate mold arranged in the concave notch is raised along the tapered guide surface until it comes into contact with the plate mold receiving surface following the cavity surface, the cavity between the male mold and the female mold is lowered. Close the end opening of, and further squeeze the female material down along the product shape on the male mold in a state where the skin material is clamped by the clamp mechanism consisting of the plate mold and the receiving frame whose terminal descends, If the molten resin molding material is supplied between the male mold and the skin material and the receiving frame is lowered to release the clamp, the unclamped skin material in the cavity is supplied and pressed by the molten resin molding material. For extension The skin material was caught from one side of the synthetic resin molded core material to the tree end surface at the same time as the synthetic resin molded core material was formed without excessive tension being applied to the back side of the tip for forming the wood end surface It will be layered and integrated in this state.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Reference numerals 1 and 2 denote a pair of female molds and male molds constituting a cavity for molding a laminated body. The female mold 1 is provided above the male mold 2 fixed on a base in a clamped state with the male mold 2. Cavity 2 between which peripheral end is opened as end opening 20
The lower end of the female die 1 has a plate-type receiving surface 12 following the cavity surface.
Concave notch 11 with tapered guide surface 13 extending downward
Is formed. 3 is a skin material 31 which is arranged on the lower peripheral edge of the male mold 2 and intervenes between the male mold 2 and the female mold 1.
The clamp mechanism 3 comprises a receiving frame 3a movable up and down by a fluid pressure cylinder and a plate mold 4 described later.

Reference numeral 4 denotes a plate type which is arranged so as to be able to move up and down in the concave notch 11 at the lower end of the female die 1. The plate type 4 is an upwardly-entering type which can enter the end opening 20. It has a tip 5 for forming a wood end surface. The plate mold 4 is connected to the air cylinder 6 incorporated in the female mold 1 and operates under certain conditions to slide along the downwardly expanding tapered guide surface 13 until it comes into contact with the plate mold receiving surface 12. A state in which the end opening 20 of the cavity 21 between the female mold 1 and the male mold 2 is closed by ascending while advancing to the male mold 2 side, and a state in which the end opening is lowered by retreating away from the male mold 2. 20 is opened.

[0009] With this structure, when the female mold 1 is raised as shown in FIG. 2, a soft sheet layer 31a such as a vinyl chloride sheet and a polypropylene are provided between the male mold 2 and the female mold 1. A skin material 31 made of an olefin-based pad layer 31b such as a foam or a polyethylene foam is set in a state where the terminal is supported by a receiving frame 3a of the clamp mechanism 3 whose terminal is raised to substantially the same plane as the male mold 2. In addition,
At this time, the plate mold 4 is raised along the tapered guide surface 13 until the plate mold 4 comes into contact with the plate mold receiving surface 12 by the operation of the air cylinder 6. Next, when the female mold 1 is lowered, the end opening 20 of the cavity 21 between the two dies is closed by the plate mold 4, so that the female mold 1 is further lowered as shown in FIG. Then, the skin material 31 is squeezed along the product shape on the male mold while the terminal is clamped by the clamp mechanism 3.

Next, a molten resin material 22a for forming a core material is supplied between the male mold 2 and the skin material 31 from a material supply hole or the like provided in the male mold 2, and the mold clamping is advanced. At this time, as shown in FIG. 4, if only the receiving frame 3a of the clamp mechanism 3 is lowered so as to be separated from the plate mold 4, and the clamp of the skin material 31 by the clamp mechanism 3 is released, the tension of the skin material 31 is released. The molten resin material 22a supplied into the cavity 21 extends to the back side of the tip 5 for forming a wood end face that has entered the end opening 20 of the cavity 21 and reaches and is molded. The end of the skin material 31 layered and integrated on one surface of the tree 32 is wound so as to completely cover the end surface of the tree. At this time, as described above, the skin material 31 is not clamped as in the related art, but is unclamped, so that the skin material 31 is caught in a natural state where no excessive pulling force acts and the skin material 31 is removed. Since the synthetic resin molded core material 32 is layered and integrated, and the tip of the plate mold 4 is formed on the tip 5 for forming the wood end surface, a part of the skin material 31 is formed on the wood end surface. Along the rear side.

Thereafter, the plate mold 4 is moved to the tapered guide surface 1.
3, the tip 5 for forming the wood end surface of the plate mold 4 is separated from the side surface of the male mold 2 so that the female mold 1
As shown in FIG. 5, the ejector 8 of the male mold 2 is actuated to push up the molded product, and the plate end 4 for shaping the wood end face is slid down along the tapered guide surface 13 to form the molded product. Take out the goods. After the molded article obtained in this manner is taken out according to a conventional method, a surplus portion connected to the wood end face is trimmed, and a skin material 31 as shown in FIG. 6 is rolled up to the wood end face. Thus, a skin integrated laminate 40 is obtained.

The thus-obtained integral skin laminate 4
No. 0 is a natural material in which the skin material 31 is rolled in so as to completely cover the tree end surface from one side of the synthetic resin molded core material 32 and is layered and integrated, and further, no tensile force acts on the skin material 31. Since it is in a state, the skin material 31 is formed after molding.
The phenomenon in which the skin material 31 shrinks due to the residual stress or due to the heat shrinkage accompanying the heat resistance test and a part of the synthetic resin molded core material 32 is exposed can be reliably prevented.

[0013]

As is apparent from the above description, the skin material is layered and integrated in a state where the skin material is firmly involved from one surface to the tree end surface simultaneously with the molding of the synthetic resin molded core material. Since an unreasonable tensile force is not applied to the skin material during molding, it is possible to efficiently produce a high-quality skin-integrated laminate that exhibits an excellent appearance without shrinking even after molding. In particular, the clamping mechanism for the skin material is slidably slidable into a concave notch having a tapered guide surface at the lower end of the female mold in order to close the end opening of the cavity formed by the male mold and the female mold. Since it is composed of a plate type having a pointed tip for forming a wood end face and a receiving frame that can be moved up and down to face the plate type, the device itself has an extremely simple structure, is inexpensive, and can be maintained.・ Inspection It can be done to ease. Therefore, the present invention greatly contributes to the development of industry as a solution to the problems of the conventional mold apparatus for producing a skin integrated laminate.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional front view of a main part of the embodiment of the present invention, showing a state where a skin material is set.

FIG. 3 is a longitudinal sectional front view of a main part of an embodiment of the present invention, showing a state in which a molten synthetic resin material is supplied between a skin material and a male mold.

FIG. 4 is a longitudinal sectional front view of a main part of the embodiment of the present invention, showing a state where the male mold and the female mold are clamped.

FIG. 5 is a longitudinal sectional front view of a main part of the embodiment of the present invention shown in a mold release state of the molded product.

FIG. 6 is a cross-sectional view of a skin-integrated laminate manufactured according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Female type 2 Male type 3 Clamping mechanism 3a Receiving frame 4 Plate type 5 Sharp tip for forming wood end face 11 Depressed notch 12 Plate type receiving face 13 Taper guide face 20 End opening 21 Cavity

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-255312 (JP, A) JP-A-2-223415 (JP, A) JP-A-61-132330 (JP, A) JP-A-61-132 76330 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B29C 43/00-43/58

Claims (1)

(57) [Claims] 1. A male mold (2) installed on a base, and a peripheral end between the two molds in a mold-clamped state which is opposed to the male mold (2) so as to be freely separated from the male mold (2). A female mold (1) forming a cavity (21) that is opened to the outside as an external part, and a tip for forming a wood end face (10) provided below the female mold (1) and closing the end opening (20). 5), and a terminal of the skin material disposed outside the male mold (2) and interposed between the male mold (2) and the female mold (1). 4) and a clamp mechanism (3) for clamping between a vertically movable receiving frame (3a), and the female die (1) is extended downward to a plate die receiving surface (12) whose lower end follows the cavity surface. The plate die (4) slides along the tapered guide surface (13) in the concave notch (11) connected to the tapered guide surface (13). Skin integrated lamination characterized by being freely arranged Mold apparatus for the production.