JP2652119B2 - Molding simultaneous molding die and method of manufacturing molding simultaneous painting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION This invention relates to a cosmetic compact, glasses case, lunch box, the production method of molding decorating mold to obtain a molded foil-decorating products to be used, such as in the upper lid of food containers and molded foil-decorating goods About.

[0002]

2. Description of the Related Art Conventionally, a simultaneously painted article used for the above-mentioned applications has a top wall and a side wall exhibiting a gentle slope.
There is a lid-shaped molded simultaneous painting product in which the painting layer is formed so as to cover the top wall, and there are the following two manufacturing methods and molding simultaneous painting molds.

(1) A mold A having a cavity forming surface 11 for forming a top wall and a side wall of a molded article, and a cavity for forming a top wall and a side wall of the molded article in cooperation with the mold A Using a mold with simultaneous molding picture (see FIG. 5) comprising a mold B having a forming surface 13 and a resin injection port 7,
First, the painting film 3 having the painting layer 30 is sandwiched between the mold A and the mold B, the mold is closed, the cavity 8 is formed, the molten resin is injected, the molten resin is cooled and solidified, and the mold is opened. Then, there is a manufacturing method of taking out a product with simultaneous molding. In this manufacturing method, when changing the unevenness provided on the top wall of the molded product, the mold A is replaced.

(2) A replaceable mold a having a cavity forming surface 11 for forming a top wall and a side wall of a molded product and replaceable in a mold A, and a cavity for forming a side wall of the molded product. A mold A having a forming surface 12 and a cavity forming surface 13 for forming a molded product having a uniform and gentle surface as a whole from the top wall to the side wall in cooperation with the replacement mold a and the mold A. First, the painted film 3 having the painted layer 30 having the painting layer 30 is sandwiched between the mold A and the mold B by using a molded simultaneous painting mold (see FIG. 6) including the mold B having the resin injection port 7. There is a manufacturing method in which the mold is closed to form the cavity 8, the molten resin is injected, the molten resin is cooled and solidified, the mold is opened, and the molded article is taken out at the same time. In this manufacturing method, when changing the unevenness provided on the top wall of the molded product, the mold A is used as it is, and only the replacement mold a is replaced.

[0005]

However, in (1),
Since it is composed of the mold A and the mold B, the joining surface 6 (parting for the painted film) of the mold A and the mold B is required in order to minimize cracks in the ink of the painted film 3, breakage of the film, wrinkles, etc. ) Clearance must be set accurately. However, conventionally, every time the shape of the unevenness provided on the surface of the molded product is changed, the mold A must be replaced with a new one.
It is necessary to reset the clearance of the joint surface 6 between the first and second members, which is very complicated and inefficient.

In (2), when changing the shape of the irregularities provided on the surface of the molded product, only the replacement mold a needs to be replaced, so that the replacement of the mold A is unnecessary. There is no complicated setting of the clearance with the mold B. But,
The trace of the joint 60 on the cavity 8 side end of the joint surface 6 between the mold A and the replacement mold a is formed as a streak or a step on the uniformly gentle surface of the molded product. Has a significantly worse appearance. Also, the joining surface 6 between the mold A and the replacement mold a
In the case of vacuum suction, the trace of the joint 60 between the mold A and the replacement mold a becomes larger and more conspicuous, and the appearance of the simultaneously painted product is further deteriorated.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a molding simultaneous painting mold and a method of manufacturing a molding simultaneous painting product for efficiently obtaining a molded simultaneous painting with good appearance .

[0008]

Means for Solving the Problems In order to achieve the above object, a mold with simultaneous painting according to the present invention has a top wall , an intermediate wall having a steep slope, and a side wall having a gentle slope continuously.
A replacement mold A having a cavity forming surface for forming the top wall and a part of the intermediate wall of the molded simultaneous painting having the painted layer formed on the surface, and forming a part of the intermediate wall and the side wall. B having a cavity forming surface for forming a top wall, an intermediate wall, and a side wall in cooperation with the replacement mold A and the mold B, and a mold having a resin injection port. The mold was constituted such that the joint between the replacement mold A and the mold B was located on the cavity forming surface forming the intermediate wall of the simultaneously painted product.

According to the present invention, there is provided a mold with simultaneous painting having a top wall, an intermediate wall having a steep slope, and a side wall having a gentle slope, and a top wall of the simultaneous painting article having a painting layer formed on its surface. Mold A having a cavity forming surface for forming most of the mold, a mold B having a cavity forming surface for forming a part of the top wall, an intermediate wall, and a side wall, and a replacement mold A
And a mold C having a cavity forming surface for forming a top wall, an intermediate wall, and a side wall in cooperation with the mold B, and having a resin injection port. The joint was configured so as to be located closer to the cavity forming surface forming the intermediate wall , of the cavity forming surface forming the top wall of the molded article at the same time.

[0010] The mold with simultaneous molding and picture according to the present invention may be configured such that when the mold is closed, a vacuum suction groove is formed on the joint surface between the replacement mold A and the mold B.

[0011] The mold with simultaneous molding picture according to the present invention is a mold B
Is divided into a mold D and a mold E, and a parting for a painting film is formed on a joint surface between the mold D and the mold E, and a joint between the mold E and the mold C is formed. The product parting may be formed on the surface.

The mold with simultaneous molding and picture according to the present invention may be configured such that when the mold is closed, a vacuum suction groove is formed on the joint surface between the replacement mold A and the mold D.

Further, in order to achieve the above object, a method for producing a simultaneously molded article according to the present invention uses the above-described molded simultaneous painting mold so as to sandwich a painted film having a painted layer. After closing the replacement mold A, the mold B, and the mold C, the molten resin is injected into the cavity, and after cooling and solidifying the molten resin, the top wall, the intermediate wall having a steep slope, and the side wall having a gentle slope. , And the molded simultaneous painting product having the painting layer formed on the surface is taken out.

Further, in order to achieve the above object, a method for manufacturing a simultaneously molded article according to the present invention comprises the steps of: replacing the replacement mold A, the mold D, and the mold E so as to sandwich a painting film having a painting layer. After closing the mold C, the molten resin is injected into the cavity, and after the molten resin is cooled and solidified, the top wall, the intermediate wall having a steep slope, and the side wall having a gentle slope are continuously provided. Was designed so as to take out the simultaneously-painted article formed on the surface.

[0015]

The method of manufacturing a mold with simultaneous molding and a product with simultaneous molding according to the present invention has the following effects. In the present invention, the replacement mold A is an essential requirement. Therefore, when changing the shape of the irregularities provided on the surface of the molded product, only the replacement mold A needs to be replaced, and the replacement of the mold B is unnecessary.

Further, in the present invention, the replacement mold A forms the top wall and part of the intermediate wall of the simultaneously molded article, and the mold B forms the part of the intermediate wall and the side wall of the simultaneously molded article. To form (Fig. 1
Alternatively, the replacement mold A forms the majority of the top wall of the molded article, and the mold B forms a portion of the top wall, the intermediate wall, and the side wall of the molded article (see FIG. 2). ). In each of the above cases, the mold B
Is divided into a mold D and a mold E. Therefore, the trace of the joint between the replacement mold A and the mold B or the joint between the replacement mold A and the mold D is close to the intermediate wall exhibiting a steep slope or the intermediate wall of the top wall. Will be formed. That is, the joining of the replacement mold A and the mold B
Part, or the trace of the joint between the replacement mold A and the mold D,
Intermediately between the top wall and the molded in-painted product
It will be formed close to the boundary with the wall.

Further, according to the present invention, the replacement mold A and the mold B
The vacuum suction groove is formed at the joint between the mold D and the replacement mold A and the mold D. Therefore, the painted film can be securely brought into close contact with the cavity forming surface formed by the replacement mold A and the mold B or the cavity formation surface formed by the replacement mold A and the mold D.

Further, in the present invention, the mold B of the mold for simultaneous painting is divided into a mold D and a mold E, and the joint surface between the mold D and the mold E A parting for a picture film is formed, and a parting for a product is formed on a joint surface between the mold E and the mold C. Therefore, since the parting for passing the picture film is located on the intermediate wall having a steep slope, the tip of the mold B from the cavity is not sharpened and the wall thickness is not reduced. For this reason, the tip of the mold B does not drop or deform, and the frequent replacement of the mold is not required, so that an article with simultaneous molding can be obtained at low cost.

In the present invention, an intermediate wall is formed between the top wall and the side wall of the simultaneously painted article. Therefore, a step can be formed between the top wall and the side wall, giving an impression that the top wall is raised, which is also interesting in design.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. The molded simultaneous painted article to be obtained by the method of manufacturing a molded simultaneous painted article and the molded simultaneous painted article according to the present invention comprises a top wall 1 and a side wall 2 exhibiting a gentle slope, and the painted layer 30 is formed on the top wall 1. It is a lid-shaped molded simultaneous painting with a cover (see FIG. 4).

The top wall 1 may have a completely flat surface or a gently curved surface.
Even those that have a irregularities in part or all of the curved surface
No.

The side wall 2 has a gentle slope. The gentle slope refers to a surface having a gentle slope in which the plane is gently inclined with respect to the horizontal plane of the molded product 4 or a gentle slope in which the curved surface is inclined at a gentle tangent angle.

The intermediate wall 5 is provided between the top wall 1 and the side wall 2. The intermediate wall 5 is a wall having a slope that is steeper than the slope of the side wall 2. The intermediate wall 5 may have, for example, a surface having an inclination angle θ of 45 to 90 ° with respect to the horizontal plane of the molded product 4. Also, the intermediate wall 5
Not only a flat surface but also a curved surface may be used.

The painted layer 30 may be formed only on the top wall 1, may be formed on the top wall 1, and the painted layer end 31 may extend to the intermediate wall 5. It may be formed so as to cover all of the wall 1, the intermediate wall 5, and the side wall 2. The painting layer 30 is transferred from the painting film 3. The painting film 3 is such that a release layer, a design layer, an adhesive layer, and the like are sequentially formed as a painting layer 30 on a base sheet, and the painting layer is peelable from the base sheet (see FIG. 1). . The design layer is made of an ink containing a color pigment or a dye.

Next, a method for producing a simultaneously molded article will be described. First, a mold for simultaneous painting is prepared in order to manufacture the simultaneous painting for molding of the present invention.

The mold for simultaneous painting with mold according to the present invention includes a replacement mold A having a cavity forming surface 11 for forming at least the top wall 1 of the above-mentioned article with simultaneous molding, and at least the intermediate wall 5 and the side wall 2. And a cavity forming surface 13 for forming the top wall 1, the intermediate wall 5, and the side wall 2 in cooperation with the replacement mold A and the mold B. And a mold C having a resin injection port 7.

[0027] replacement mold A is, mold and to have a convex-concave for forming the unevenness on the top wall 1 of the molded foil-decorating products, molding simultaneous picture
For forming irregularities different from the irregularities on the top wall 1 of the accessory
A through-hole in the top wall 1 of a mold with irregularities or a simultaneously painted product
Molds with protrusions to form grooves and grooves,
A mold having a flat surface for flattening the top wall 1 of the accessory
When changing the shape of the top wall 1 of a simultaneously painted article , a mold having irregularities is taken into a mold having another irregularity.
Change the mold with irregularities to a mold with a flat surface.
It is a mold that can be used after replacement .

The cavity forming surface 11 of the replacement mold A is a surface forming all of the top wall 1 and a part of the intermediate wall 5 of the simultaneously molded article (see FIG. 1). There are cases where most of the top wall 1 is formed (see FIG. 2).

The shape of the cavity forming surface 12 of the mold B differs depending on which part of the simultaneously molded article is formed by the cavity forming surface 11 of the replacement mold A. That is, when the cavity forming surface 11 of the replacement mold A forms the entire top wall 1 and a part of the intermediate wall 5 of the simultaneously molded article,
As for the cavity forming surface 12 of the mold B, the surface forming the side wall 2 of the simultaneously painted product is a surface forming the remaining part of the intermediate wall 5 and the side wall 2 (see FIG. 1). Further, when the cavity forming surface 11 of the replacement mold A is a surface forming only most of the top wall 1 of the simultaneously molded article, the cavity forming surface 12 of the mold B is formed on the top wall of the simultaneously molded article. 1 and the surface forming the intermediate wall 5 and the side wall 2 (see FIG. 2).

The mold C is closed in cooperation with the replacement mold A and the mold B, thereby forming the cavity 8 for forming the simultaneously molded article of the present invention. The surface of the cavity forming surface 13 of the mold C is a surface that forms the surface on the back side of the top wall 1, the intermediate wall 5, and the side wall 2 of the simultaneously molded article of the present invention. The mold C has a resin injection port 7 for injecting the molten resin 9 into the cavity 8.

In the simultaneous molding and painting mold according to the present invention, when the replacement mold A and the mold B are closed, the painting film 3 is attached to the joining surface 6 of the replacement mold A and the mold B. A vacuum suction groove 10 for making close contact with the surface of the mold may be provided (see FIG. 3).

In the mold with simultaneous molding picture according to the present invention, the mold B
Instead of a part of the top wall 1 and the intermediate wall 5
Or a mold D forming a part of the intermediate wall 5,
A split mold including a mold E that forms a part of the intermediate wall 5 and the side wall 2 may be used (see FIG. 3). In this case, a parting for a painting film is formed by joining the painting film 3 between the mold D and the mold E with the painting film 3 interposed therebetween. The parting for the picture film is located on the intermediate wall 5 of the simultaneous painting article.

Next, the replacement mold A is first incorporated into the mold B by using the prepared simultaneous molding picture mold (see FIG. 7). By incorporating, the cavity forming surface 11 of the replacement mold A and the cavity forming surface 12 of the mold B become continuous with each other, and the top wall 1 having the irregularities of the simultaneously-painted product, and the side wall 2 exhibiting a gentle slope, A cavity forming surface that forms the upper surface with the steeply inclined intermediate wall 5 is formed. Replacement mold A
The joint 60 between the mold and the mold B is located in the middle of the cavity forming surface forming the intermediate wall 5 (see FIG. 1) or in the cavity forming surface forming the top wall 1 of the simultaneously painted product .
It is located near the cavity forming surface that forms the intermediate wall 5 (see FIG. 2).

At this time, if necessary, a vacuum suction groove 10 may be formed on the joint surface 6 between the replacement mold A and the mold B (see FIG. 3). Thus, before the molten resin 9 is injected into the cavity 8, the painted film 3 can be surely brought into close contact with the surface of the cavity forming surface formed by the replacement mold A and the mold B. (See FIG. 8). In order to supply the painting film 3 between the mold B and the mold C in which the replacement mold A is incorporated, it is preferable to use a painting film supply device or a painting film winding device.

Next, the painting layer 3 is placed between the mold B and the mold C.
Replacement mold A so as to sandwich the painted film 3 having a zero
The mold B, the mold B and the mold C are closed to form a cavity 8 having the shape of the simultaneously-painted article (see FIG. 9).

The painting film 3 is formed by sequentially laminating a release layer, a design layer, an adhesive layer and the like as a painting layer 30 on a long base sheet. The release layer is a layer that imparts releasability between the base sheet and the painting layer 30. The design layer is a layer made of an ink containing a color pigment or a dye and imparting decorativeness and functionality to the surface of the molded article 4. The pattern layer includes a normal printed pattern and a conductive pattern formed of a conductive material. The adhesive layer is a layer for bonding the painted layer 30 and the molded product 4.

The painted film 3 may be one in which the base sheet is peeled off after being adhered to the surface of the molded article 4 and only the painted layer 30 is transferred to the surface of the molded article 4. Alternatively, a necessary portion of the painting film 3 may be stamped out, and the stamped painting layer 30 and the base sheet may be formed together on the surface of the molded article 4.

The painting film 3 may be fed between the molds at a predetermined pitch by a painting film supply device (see FIGS. 7 to 11). Alternatively, it may be sent in a single sheet.

Next, the molten resin 9 is injected into the cavity 8 (see FIG. 10). The molten resin 9 is a molding resin used for ordinary injection molding, such as an acrylonitrile styrene resin, a polycarbonate resin, a polystyrene resin, an acrylic resin, a polyester resin, a polypropylene resin, and an ABS resin.

Next, the molten resin 9 is cooled and solidified, the mold is opened, and the molded article with the painted layer 30 formed on the molded article 4 is taken out (see FIG. 11).

In the method for manufacturing a simultaneously-painted article according to the present invention, a part of the top wall 1 and a part of the intermediate wall 5 or a part of the middle wall 5 of the simultaneously-painted simultaneous article are formed instead of the mold B. And a mold E which forms a part of the intermediate wall 5 and the side wall 2.
(See FIG. 3). In this case, the mold D and the mold E are joined with the picture film 3 interposed therebetween. The parting for the painted film is located on the cavity forming surface forming the intermediate wall 5 of the simultaneously painted product (see FIG. 3).

[0042]

According to the method of manufacturing a simultaneously-molded mold and the simultaneously-molded article according to the present invention, even when the irregularities provided on the top wall of the molded article are changed, the mold B or the mold D and the mold E are changed.
Since there is no need for replacement, it is not necessary to set the clearance for the parting for the painted film, and a molded simultaneous painted product having any irregularities on the top wall can be efficiently obtained.

The trace of the joint between the replacement mold A and the mold B, or the joint between the replacement mold A and the mold D, is closer to the intermediate wall of the steep slope or the top wall of the molded product. Thus, a molded article with good appearance is obtained that is inconspicuous and has a good appearance. Furthermore, even if there is a trace due to the vacuum suction port at the joint between the replacement mold A and the mold B or the joint between the replacement mold A and the mold D, the intermediate wall or the top of the steeply inclined surface of the molded product. sales of wall
Because it is formed in Chino intermediate wall close, inconspicuous, it is possible to obtain a good molded decorating article appearance.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view showing a state in which a painting film is sandwiched between a molding simultaneous painting mold of the present invention and a mold is closed.

FIG. 2 is an explanatory cross-sectional view showing a state in which a painting film is sandwiched between molds for simultaneous painting according to another embodiment of the present invention, and the mold is closed.

FIG. 3 is an explanatory sectional view showing a state in which a painting film is sandwiched between molds for simultaneous painting according to another embodiment of the present invention, and the mold is closed.

FIG. 4 is an explanatory cross-sectional view of a simultaneously molded article obtained by the manufacturing method of the present invention.

FIG. 5 is an explanatory cross-sectional view showing a state in which a mold is closed with a painting film sandwiched between conventional molding simultaneous painting dies.

FIG. 6 is an explanatory cross-sectional view showing a state in which a painting film is sandwiched between other conventional molding and painting molds and the mold is closed.

FIG. 7 is an explanatory cross-sectional view showing a state in which a painting film is brought into close contact with a molding simultaneous painting mold of the present invention.

FIG. 8 is an explanatory cross-sectional view showing a state in which a painting film is brought into close contact with a cavity forming surface formed by the replacement mold A and the mold B in FIG.

FIG. 9 is an explanatory sectional view showing a state in which a mold B in which a replacement mold A is incorporated and a mold C are closed and a cavity is formed in FIG. 8;

FIG. 10 is an explanatory sectional view showing a state in which a molten resin is injected into a cavity in FIG. 9;

FIG. 11 is a cross-sectional explanatory view showing a state in which the mold with simultaneous painting is opened and the article with simultaneous molding is taken out in FIG. 10;

[Explanation of symbols]

 A Replacement mold A B Mold B C Mold C 1 Top wall 2 Side wall 3 Painting film 30 Painting layer 4 Molded product 5 Intermediate wall 6 Joining surface 60 Joining part 7 Resin injection port 8 Cavity 9 Molten resin 10 Vacuum suction groove 11 Cavity forming surface 12 Cavity forming surface 13 Cavity forming surface

Claims (10)

(57) [Claims] 1. A top wall and an intermediate wall of a molded simultaneous painting having a top wall having irregularities, an intermediate wall exhibiting a steep slope, and a side wall exhibiting a gentle slope continuously having a painting layer formed on a surface thereof. Mold A having a cavity forming surface for forming a part
And a mold B having a cavity forming surface for forming a part of the intermediate wall and the side wall, and forming a top wall, an intermediate wall, and a side wall in cooperation with the replacement mold A and the mold B. A mold C having a cavity forming surface and a resin injection port, and a joint portion between the replacement mold A and the mold B is located on a cavity forming surface forming an intermediate wall of the simultaneously painted product. A mold with simultaneous painting. 2. A molded simultaneous painted article having a top wall having a flat surface, an intermediate wall having a steep slope, and a side wall having a gentle slope, wherein a painted layer is formed on the surface. A replacement mold A having a cavity forming surface for forming a part thereof, a mold B having a cavity forming surface for forming a part of an intermediate wall and a side wall, and a replacement mold A and a mold. A mold C having a cavity forming surface for forming a top wall, an intermediate wall, and a side wall in cooperation with the mold B and having a resin injection port, and a joining portion between the replacement mold A and the mold B. Is located on a cavity forming surface forming an intermediate wall of the simultaneously molded article. 3. A top wall of a molded simultaneous painting having a top wall having irregularities, an intermediate wall exhibiting a steep slope, and a side wall exhibiting a gentle slope, and a painting layer formed on the surface, is formed. Mold A having a cavity forming surface for forming a cavity, a mold B having a cavity forming surface for forming a part of a top wall, an intermediate wall, and a side wall, and a replacement mold A and a mold B. A mold C having a cavity forming surface for forming a top wall, an intermediate wall, and a side wall in cooperation with a resin injection port, and a joining portion between the replacement mold A and the mold B is formed by molding. A molded simultaneous painting die, which is located near a cavity forming surface that forms an intermediate wall , of a cavity forming surface that forms a top wall of a simultaneous painted product. A top wall having a flat surface, an intermediate wall having a steep slope, and a side wall having a gentle slope are continuously formed, and most of the top wall of the molded simultaneous painting having the painting layer formed on the surface thereof is formed. Replacement mold A having a cavity forming surface for forming, a mold B having a cavity forming surface for forming a part of a top wall, an intermediate wall, and a side wall, replacement mold A and mold B And a mold C having a cavity forming surface for forming a top wall, an intermediate wall, and a side wall and having a resin injection port, and a joint between the replacement mold A and the mold B, A molding simultaneous painting die, which is located closer to a cavity forming surface forming an intermediate wall of a cavity forming surface forming a top wall of the molding simultaneous painting product. 5. When the molds are closed, a replacement mold A and a mold B are provided.
5. A vacuum suction groove is formed on a surface to be joined with the substrate.
A mold with simultaneous molding picture described in any of them . 6. A mold B is divided into a mold D and a mold E, and a part for a painted film is formed on a joint surface between the mold D and the mold E; products for parting is formed at the interface between the mold C claims 1-4 Neu
A mold with simultaneous molding picture described in any of them . 7. A replacement mold A and a mold D when the molds are closed.
The mold for simultaneous painting with forming according to claim 6 , wherein a vacuum suction groove is formed on a joint surface with the mold. 8. A replacement mold A and a mold B using the simultaneous simultaneous painting mold according to any one of claims 1 to 5 so as to sandwich a painting film having a painting layer. After closing the mold C, the molten resin is injected into the cavity, and after cooling and solidifying the molten resin, the top wall, the intermediate wall having a steep slope, and the side wall having a gentle slope are continuously provided. A method for producing a molded simultaneous painted article, wherein the molded simultaneous painted article formed on the surface is taken out. 9. A replacement mold A, a mold D, a mold E, and a mold C, using the simultaneous-painting mold according to claim 6 or 7 , so as to sandwich a painting film having a painting layer. After the mold is closed, the molten resin is injected into the cavity, and after cooling and solidifying the molten resin, the top wall, the intermediate wall having a steep slope, and the side wall having a gentle slope are continuously formed, and a painted layer is formed on the surface. A method for producing a simultaneously molded article, wherein the molded article is removed. 10. When the mold is closed, the replacement mold A and the mold D
The method for producing a simultaneously molded article according to claim 9 , wherein a vacuum suction groove is formed on a surface to be joined to the article.