JP3029947B2 - 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 forming a cavity which is opposed to and detachable from each other and whose peripheral end is open to the outside as an end opening at the time of mold clamping, and a terminal of a skin material interposed between the female mold and the male mold An open / close clamp mechanism which clamps the male mold, and a plate type which is provided to be movable up and down around the male mold and which is moved forward and backward toward a side surface of the male mold by operation of a lateral cylinder. Has an upwardly projecting portion formed by winding and integrating the skin material with the tree end surface of the molded core material molded in the cavity.

[0006]

In the mold apparatus for manufacturing a skin-integrated laminate, if the skin material is set between the opened male mold and the female mold with its ends clamped by the clamp mechanism, The female mold is lowered to a predetermined position, and the skin material is pressed against the side surface of the male mold by the tip of the plate mold which advances by the operation of the lateral cylinder, and the molten resin molding material is supplied between the male mold upper surface and the skin material. Then, while the skin material is pressed against the side surface of the male mold by the tip of the plate mold, the female mold is further lowered, and the skin material is squeezed along the product shape while the terminal is clamped by the clamp mechanism. After that, when the female mold is further lowered and the clamp is released, the upward protrusion of the tip of the horizontal cylinder, which rises relatively due to the lowering of the female mold, is attached to the male mold and the skin with the unclamped skin material. The core material formed between the materials enters from the end of the tree to the back without applying excessive tensile force, and at the same time as the molding of the synthetic resin molding core, the skin material is cut from one side of the synthetic resin molding core. Layering and integration are performed in a state of being wound up to the end face.

[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
Numeral 3 is disposed on the lower peripheral edge of the male mold 2 so as to form a part 1 and clamps a terminal of a skin material 31 interposed between the male mold 2 and the female mold 1. It is a clamp mechanism that can be opened and closed freely.

Reference numeral 4 denotes an up-down guide rod vertically suspended from a projecting portion 5 provided at a required position on the lower edge of the female die 1. The guide rod 4 is surrounded by the guide rod. A hydraulic horizontal cylinder 7 which is always resiliently downwardly urged by a spring 6 is slidably mounted on the horizontal cylinder 7, and the horizontal cylinder 7 has a plate type 8 which is moved toward and away from the side surface of the male die 2 by its operation. An upward projection 9 is formed at the tip of the plate mold 8 so as to wind up and integrate with the back of the end of the tree of the molded core material when the mold material is completely clamped. In the figure, reference numeral 10 is arranged immediately below each horizontal cylinder 7, and when the horizontal cylinder 7 is lowered to a predetermined position during mold clamping, the female die 1 descends to the compression limit of the spring 6 by contacting the horizontal cylinder 7. Is a bottom dead center stopper.

[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. The 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 its end is clamped by the clamp mechanism 3, and the plate mold 8 is advanced by the operation of the horizontal cylinder 7. Then, the female mold 1 is lowered and the skin material 31 is pressed against the side surface of the male mold 2 by the tip of the plate mold 8 which is advanced by the operation of the lateral cylinder 7 to block the cavity 21 from the outside by the sealing effect of this portion. The molten resin molding material is supplied between the upper surface of the male mold 2 and the skin material 31 through a molding material supply hole or the like provided so as to communicate over the upper surface from below the male mold 2. Then, while the skin material 31 is pressed against the side surface of the male mold 2 by the tip of the plate mold 8, the female mold 1 is further lowered, and the skin material 31 is clamped by the clamp mechanism 3 at its end as shown in FIG. To narrow down along the product shape.
Next, when the lateral cylinder 7 is brought into contact with the bottom dead center stopper 10 by further continuing the mold clamping, the lateral cylinder 7 is slidable with respect to the guide rod 4 so that only the female die 1 It is lowered to the compression limit, and the mold is completely clamped by the elastic force of the spring 6. At this time, if the clamp by the clamp mechanism 3 is released, the skin material 31 from which the terminal is unclamped becomes a female mold. The tree of the molded core 41 formed between the male mold 2 and the skin material 31 by the upward projection 9 formed at the tip of the plate mold 8 integrated with the horizontal cylinder 7 which is relatively raised by the lowering of the mold 1 As shown in FIG. 4, at the same time as the molding of the synthetic core 41 made of synthetic resin, the skin material 31 is cut from one side of the molding core 41 made of synthetic resin from the end face to the back side without applying an excessive tensile force. Behind the end face It is integrated layer deposition in caught state.

When the skin-integrated laminate is formed in this way, the female mold 1 is raised by operating the projecting pin (not shown) to leave the molded core 41 on the female mold 1 side. The resilient force causes the lateral cylinder 7 to move down along the guide rod 4 and the upward projection 9 of the tip of the plate mold 8 to be separated from the molding core 41 as shown by a chain line in FIG. As shown by a solid line in FIG. 5, the molding core 41 is released from the female mold 1 by an ordinary method, and the surplus portion connected to the tree end surface of the skin material 31 is removed by a normal operation. Fig. 6
As a result, a skin integrated laminate 40 in which the skin material 31 as shown in FIG.

[0011] The thus obtained skin-integrated 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.

[0012]

As is clear from the above description, the plate type having the upward projection formed at the tip with the skin material wound around and integrated with the wood end surface of the molded core material molded between the two types is used. Since it is arranged so as to be able to move up and down around the mold and move forward and backward toward the side of the male mold by the operation of the lateral cylinder, the skin material is simultaneously formed from the synthetic resin molding core material to the wood end surface from one side at the same time In addition to being able to be layered and unified in a state of being firmly entangled, since an unreasonable tensile force is not applied to the skin material at the time of molding, the skin material does not shrink even after molding and has an excellent appearance. It is possible to efficiently produce a high-quality skin-integrated laminated body, and furthermore, since the movement of the plate mold is separated into two directions, that is, the vertical direction which is the same as the mold clamping direction and the horizontal direction which is orthogonal to this direction, form Higher reliability with a small fault on top to accommodate, and there maintenance advantage that it is easy to inspect. Further, the horizontal cylinder is mounted on a vertical guide rod disposed at a required position on the periphery of the female die so as to be vertically slidable by a spring and always slid up and down. Below, a bottom dead center stopper which is brought into contact with the horizontal cylinder at the time of mold clamping so that the female mold is lowered to the compression limit of the spring can be provided at a low cost with a simple mechanism. This is convenient because a series of operations can be performed accurately and easily, and there are fewer failures. 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 male mold and a skin material by slightly lowering a female mold.

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

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

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 Clamp mechanism 4 Guide rod 6 Spring 7 Horizontal cylinder 8 Plate type 9 Upward protrusion 10 Bottom dead center stopper 20 End opening 21 Cavity

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-223415 (JP, A) JP-A-61-49828 (JP, A) JP-A-1-218820 (JP, A) JP-A-56-1982 111668 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29C 43/00-43/58 B29C 33/00-33/76

Claims (2)

(57) [Claims] A male die (2) installed on a base, and a peripheral end (20) which is opposed to the male die (2) so as to be able to freely contact and separate from the male die (2) and has a peripheral end between the two dies when clamping the die. As a cavity that is open to the outside
A female mold (1) forming the female mold (21), an openable and closable clamp mechanism (3) for clamping an end of a skin material interposed between the female mold (1) and the male mold (2); The male mold is provided around the mold (2) so as to be able to move up and down.
(2) a plate die (8) which is moved toward and away from the side surface of the mold (8). A mold device for producing an integral skin laminate, wherein an upward projection (9) for winding and integrating is formed. 2. A horizontal cylinder (7) is always mounted on a vertical guide rod (4) disposed at a required position on the periphery of the female mold (1). A spring (6) surrounded by the guide rod (4) is always provided. ) So that it is slid up and down in a state where it is always resiliently pushed downward.When the mold is clamped, the horizontal cylinder (7) comes into contact with the lower part of the horizontal cylinder (7) and the spring (6) Female type up to compression limit (1)
2. The die apparatus for producing a skin-integrated laminate according to claim 1, further comprising a bottom dead center stopper (10) for lowering the upper surface.