JPH06210677A - Concurrent foil decorating mold and manufacture of concurrent foil decorating molded piece - Google Patents

Abstract

PURPOSE:To efficiently obtain a concurrent foil decorating molded piece excellent in appearance having optional irregularity on its top wall. CONSTITUTION:A concurrent foil decorating mold is constituted of a substitute mold A, a mold B, and a mold C. The substitute mold A comprises a top wall with irregularity, an intermediate wall forming steep inclination, a side wall forming slow inclination arranged continuously, and a cavity forming face 11 for forming the top wall of a concurrent foil decorating molded piece having a decoration layer 30 on its surface and a part of the intermediate wall. The mold B comprises a cavity forming face 1.2 for forming a part of the intermediate wall and the side wall. The mold C comprises a cavity forming face 13 for forming the top wall, the intermediate wall, and the side wall by cooperation of the substitute mold A and the mold B, and a resin injection opening 7. A connecting part 60 of the substitute mold A and the mold B is positioned on the cavity forming face for forming the intermediate wall of the concurrent foil decorating molded piece.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding simultaneous painting mold and a molding for obtaining a molding simultaneous painting product having unevenness on the top wall used for cosmetic compacts, eyeglass cases, lunch boxes, food container top lids, etc. The present invention relates to a method for manufacturing a product with simultaneous painting.

[0002]

2. Description of the Related Art Conventionally, a molded simultaneous painting product used for the above-mentioned applications has a lid-like shape which is composed of a top wall having irregularities and a side wall exhibiting a gentle slope, and a painting layer formed so as to cover the top wall. There is a molding simultaneous painting product, and there are the following two as the manufacturing method and the molding simultaneous painting metal mold.

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

(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 the 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 that cooperates with the replacement mold a and the mold A to form a uniform and uniform surface from the top wall to the side wall. Using a molding simultaneous painting die (see FIG. 6) which is also formed with a die B having a resin injection port 7, first, the painting film 3 having the painting layer 30 is sandwiched between the die A and the die B. There is a manufacturing method in which the mold is closed, the cavity 8 is formed, the molten resin is injected, the molten resin is cooled and solidified, the mold is opened, and the article with simultaneous molding is taken out. In this manufacturing method, when the unevenness provided on the top wall of the molded product is changed, 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 joint surface 6 between the mold A and the mold B (parting for the decorative film is used in order to minimize cracks in the ink, film tear, and wrinkles of the decorative film 3. ) Clearance must be set accurately. However, conventionally, the mold A has to be replaced with a new one each time the shape of the unevenness provided on the surface of the molded product is changed, so that the mold A and the mold B are replaced each time.
The clearance of the joint surface 6 with and must be reset, which is very complicated and inefficient.

In (2), when the shape of the unevenness provided on the surface of the molded product is changed, only the replacement mold a needs to be replaced, so that the mold A does not need to be replaced, and the mold A and There is no complexity in setting the clearance with the mold B. But,
The traces of the joint 60 at the end of the joint surface 6 between the mold A and the replacement mold a on the side of the cavity 8 form streaks or steps and are formed on the even and gentle surface of the molded product. The appearance will be significantly worse. Also, the joint surface 6 between the mold A and the replacement mold a
When vacuum suction is performed, the trace of the joint portion 60 between the mold A and the replacement mold a becomes even larger and more conspicuous, and the appearance of the simultaneously-imaging molded product becomes worse.

Therefore, it is an object of the present invention to provide a molding simultaneous painting die and a method for producing the molding simultaneous painting product for efficiently obtaining a molding simultaneous painting product having an arbitrary appearance on the top wall and having a good appearance. And

[0008]

In order to achieve the above object, the molding simultaneous painting die of the present invention has a top wall having irregularities, an intermediate wall having a steep slope, and a side wall having a gentle slope in succession. A replacement mold A having a cavity forming surface for forming a top wall and a part of the intermediate wall of the simultaneous-imaging painted product having a painting layer formed on the surface, and a part of the intermediate wall and a side wall. A mold B having a cavity forming surface for forming a resin, and 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 resin injection port. It is configured such that the joint between the replacement mold A and the mold B is located on the cavity forming surface forming the intermediate wall of the simultaneous-imaging-molded article.

The simultaneous molding / painting die of the present invention has a top wall having irregularities, an intermediate wall having a steep slope, and a side wall having a gentle slope in succession, and a molding layer having a decorative layer formed on the surface thereof. Replacement mold A having a cavity forming surface for forming most of the top wall of the mold and mold B having a cavity forming surface for forming a part of the top wall, the intermediate wall and the side wall.
And a mold C which has 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 which has a resin injection port. The joining portion between A and the mold B was configured to be located as close to the cavity forming surface forming the intermediate wall as possible of the cavity forming surface forming the top wall of the simultaneously-imprinted decorative article.

The simultaneous-molding-molding die of the present invention may be so constructed that a vacuum suction groove is formed in the joint surface between the replacement die A and the die B when the die is closed.

The molding simultaneous painting mold of the present invention is a mold B.
Is divided into a mold D and a mold E, and a parting for a paint film is formed on a bonding surface between the mold D and the mold E, and the mold E and the mold C are bonded to each other. It may be configured such that the product parting is formed on the surface.

The simultaneous molding-with-molding die of the present invention may be so constructed that a vacuum suction groove is formed in the joint surface between the replacement die A and the die D when the die is closed.

In order to achieve the above-mentioned object, the method for producing a simultaneously-molded and simultaneously-painted article according to the present invention is such that the simultaneously-molded and simultaneously-painted mold described in any of the above is used to sandwich a painted film having a painted layer. After the replacement mold A, the mold B, and the mold C are closed, the molten resin is injected into the cavity, and the molten resin is cooled and solidified, and then the top wall having unevenness, the intermediate wall exhibiting a steep slope, and the gentle slope are formed. And a side wall exhibiting the above are continuously provided, and the simultaneous painting molding product having the painting layer formed on the surface is taken out.

In order to achieve the above object, in the method for producing a simultaneously-molded decorative product of the present invention, a replacement mold A, a mold D, and a mold E are arranged so as to sandwich a decorative film having a decorative layer. After closing the mold C and the mold, the molten resin is injected into the cavity, and the molten resin is cooled and solidified, and then the top wall having irregularities is formed.
An intermediate wall having a steep slope and a side wall having a gentle slope are continuously provided, and a molding simultaneous painting product having a painting layer formed on the surface is taken out.

[0015]

The following effects are exhibited by the molding simultaneous painting die and the method for manufacturing a molding simultaneous painting product according to the present invention. In this invention, the replacement mold A is an essential requirement. Therefore, when changing the shape of the concavities and convexities provided on the surface of the molded product, only the replacement mold A needs to be replaced, and therefore the mold B need not be replaced.

Further, in the present invention, the replacement die A forms a part of the top wall and the intermediate wall of the simultaneously formed molding product, and the die B forms a portion of the middle wall and the side wall of the simultaneously formed molding product. Do you want to form (Fig. 1
Alternatively, the replacement mold A forms most of the top wall of the simultaneous painting product, and the mold B forms part of the top wall, intermediate wall and side wall of the simultaneous painting product (see FIG. 2). ) Is configured as follows. Also, in each of the above cases, the mold B
Is divided into a mold D and a mold E. Therefore, the traces of the joint between the replacement mold A and the mold B or the joint between the replacement mold A and the mold D have a steeply sloped intermediate wall or the middle of the top wall as much as possible. It will be formed near the wall.

In the present invention, the replacement mold A and the mold B are also provided.
A vacuum suction groove is formed at the joint with the mold or the joint between the replacement mold A and the mold D. Therefore, the painted film can be reliably brought into close contact with the cavity forming surface formed by the replacement mold A and the mold B or the cavity forming surface formed by the replacement mold A and the mold D.

Furthermore, according to the present invention, the mold B of the above-mentioned simultaneous forming-molding mold is divided into a mold D and a mold E, and a joint surface between the mold D and the mold E is formed. The painting film parting is formed, and the product parting is formed on the joint surface between the mold E and the mold C. Therefore, since the parting for passing the painted film is located on the intermediate wall having the steep slope, the tip of the mold B from the cavity is not sharp and the wall thickness does not become thin. For this reason, the tip of the mold B is not lost or deformed, and the frequent replacement of the mold is not necessary, and the simultaneously painted molding product can be obtained at low cost.

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

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. A molding simultaneous painting product which is to be obtained by the molding simultaneous painting die and the method for manufacturing a molding simultaneous painting product according to the present invention comprises a top wall 1 having irregularities and a side wall 2 having a gentle slope, and a painting layer 30 is a top. It is a lid-shaped simultaneous molding and painting product formed so as to cover the wall 1 (see FIG. 4).

The top wall 1 has irregularities on a part or all of a completely flat surface or a gently curved surface.

The side wall 2 has a gentle slope. The gently inclined surface is a gently inclined surface in which the plane is gently inclined with respect to the horizontal surface of the molded product 4 or a surface having a gently inclined curved surface 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 steeper slope than the slope of the side wall 2. The intermediate wall 5 may have a surface having an inclination angle θ of 45 to 90 ° with respect to the horizontal plane of the molded product 4, for example. Also, the intermediate wall 5 is
Not only a flat surface but also a curved surface may be used.

The painting layer 30 may be formed only on the top wall 1, or may be formed so as to cover the top wall 1 and have the painting layer end 31 reaching 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 formed by sequentially forming a release layer, a pattern layer, an adhesive layer, etc. as the painting layer 30 on the base sheet, and the painting layer is peelable from the base sheet (see FIG. 1). . The pattern layer is made of ink containing a coloring pigment or dye.

Next, a method for manufacturing the simultaneously-molded product will be described. First, a simultaneous-molding-imaging die is prepared in order to manufacture the simultaneous-molding-imparting article of the present invention.

The simultaneous molding / painting die of the present invention comprises a replacement mold A having a cavity forming surface 11 for forming at least the top wall 1 of the molding / simultaneous painting product, at least the intermediate wall 5 and the side wall 2. A mold B having a cavity forming surface 12 for forming a cavity, 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 resin mold C having a resin injection port 7.

The replacement mold A has unevenness for forming unevenness on the top wall 1 of the simultaneously-molded decorative product, and when changing the shape of the unevenness of the top-wall 1 of the simultaneously molded decorative product, It is a mold that can be replaced according to the changed shape.

The cavity forming surface 11 of the replacement mold A is a surface which forms the entire top wall 1 and a part of the intermediate wall 5 of the simultaneous-molding-imparted product (see FIG. 1) and the simultaneous molding-imparted product. In some cases, most of the top wall 1 is formed (see FIG. 2).

The shape of the cavity forming surface 12 of the mold B is different depending on which part of the simultaneously formed molding product the cavity forming surface 11 of the replacement mold A forms. That is, in the case where 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-imprinted product,
As for the cavity forming surface 12 of the mold B, the surface forming the side wall 2 of the simultaneously-imprinted decorative article is the surface forming the side wall 2 and the remaining part of the intermediate wall 5 (see FIG. 1). Further, when the cavity forming surface 11 of the replacement mold A is a surface forming only a large part of the top wall 1 of the simultaneous molding-molded product, the cavity forming surface 12 of the mold B is the top wall of the simultaneous molding-molded product. It becomes a surface forming the remaining part of 1, 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 to form a cavity 8 for forming the simultaneously-molded decorative article of the present invention. The surface of the cavity forming surface 13 of the mold C is a surface which forms the surface on the back side of the top wall 1, the intermediate wall 5 and the side wall 2 of the simultaneous-molding-imparting product 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 forming and molding die of the present invention, when the replacement die A and the die B are closed, the painting film 3 is provided on the joint surface 6 between the replacement die A and the die B. A vacuum suction groove 10 may be provided to bring it into close contact with the surface of the mold (see FIG. 3).

In the simultaneous molding-molding die of the present invention, the die B is
Instead of, part of the top wall 1 and intermediate wall 5 of the simultaneous painting with molding
A mold D forming part of the intermediate wall 5 or part of the intermediate wall 5,
You may use the division metal mold | die which consists of a part of intermediate wall 5, and the metal mold | die E which forms the side wall 2 (refer FIG. 3). In this case, the part for the decorative film is formed by sandwiching the decorative film 3 between the mold D and the mold E and joining them. The painting film parting is located on the intermediate wall 5 of the simultaneous painting product.

Next, the replacement mold A is first incorporated into the mold B by using the prepared molding simultaneous painting mold (see FIG. 7). By incorporating, the cavity forming surface 11 of the replacement die A and the cavity forming surface 12 of the die B are connected to each other, and the top wall 1 having the unevenness of the simultaneous-imaging picture product, the side wall 2 exhibiting a gentle slope, A cavity forming surface is formed which forms an upper surface with the intermediate wall 5 having a steep slope. Replacement mold A
The joint 60 between the mold B and the mold B is in the middle of the cavity forming surface that forms the intermediate wall 5 (see FIG. 1) or as much as possible on the cavity forming surface that forms the top wall 1 of the simultaneously-imprinted 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 in the joint surface 6 between the replacement mold A and the mold B (see FIG. 3). By doing so, 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 before the molten resin 9 is injected into the cavity 8. Yes (see Figure 8). In addition, in order to supply the decorative film 3 between the mold B and the mold C in which the replacement mold A is incorporated, it is preferable to use a decorative film supply device or a decorative film winding device.

Next, the paint layer 3 is provided between the mold B and the mold C.
Replacement mold A so as to sandwich the painted film 3 having 0
The mold B and the mold C are closed to form a cavity 8 in the shape of the above-mentioned simultaneous painting product (see FIG. 9).

The painting film 3 is formed by sequentially laminating a release layer, a pattern layer, an adhesive layer, etc. as the 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 pattern layer is a layer made of an ink containing a coloring pigment or a dye and imparting decorativeness or functionality to the surface of the molded product 4. The pattern layer includes an ordinary printed pattern and a conductive pattern formed of a conductive material. The adhesive layer is a layer for bonding the painting layer 30 and the molded product 4.

The paint film 3 may be one in which the base sheet is peeled off after adhering to the surface of the molded product 4 and only the painted layer 30 is transferred to the surface of the molded product 4. Alternatively, the necessary part of the painting film 3 may be punched, and the punched painting layer 30 and the base sheet may be formed on the surface of the molded product 4 together.

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 as 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 such as an acrylonitrile styrene resin, a polycarbonate resin, a polystyrene resin, an acrylic resin, a polyester resin, a polypropylene resin or an ABS resin, which is used for ordinary injection molding.

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

In the method for producing a simultaneously-imprinted product according to the present invention, instead of the mold B, a part of the top wall 1 and the intermediate wall 5 or a part of the intermediate wall 5 of the simultaneously-imprinted product is formed. Mold D for forming, and mold E for forming part of the intermediate wall 5 and the side wall 2
It is also possible to use a split mold composed of and (see FIG. 3). In this case, the painting film 3 is sandwiched between the mold D and the mold E to be joined. The painting film parting is located on the cavity forming surface forming the intermediate wall 5 of the simultaneous painting product (see FIG. 3).

[0042]

EFFECTS OF THE INVENTION According to the molding simultaneous painting die and the method of manufacturing a simultaneous molding painting product of the present invention, even if the unevenness provided on the top wall of the molding product is changed, the mold B, or the mold D and the mold E.
Since it is not necessary to replace it, the setting of the clearance for the parting paint film is not complicated, and it is possible to efficiently obtain the simultaneously formed molding product having any unevenness on the top wall.

Further, the traces of the joint between the replacement mold A and the mold B or the replacement mold A and the mold D are as intermediate as possible on the intermediate wall of the steep slope or the top wall of the molded product. Since it is formed close to the wall, it is possible to obtain a molded simultaneous painting product which is inconspicuous and has a good appearance. Further, 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 steep slope of the molded product Since it is formed as close to the intermediate wall as possible on the wall, it is possible to obtain a molded simultaneous painting product which is inconspicuous and has a good appearance.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional explanatory view showing a state in which a painting film is sandwiched in a molding simultaneous painting die according to another embodiment of the present invention and the die is closed.

FIG. 3 is a cross-sectional explanatory view showing a state in which a painting film is sandwiched in a simultaneous-molding painting die according to another embodiment of the present invention and the die is closed.

FIG. 4 is a cross-sectional explanatory view of a simultaneous painting product obtained by the manufacturing method of the present invention.

FIG. 5 is a cross-sectional explanatory view showing a state in which a picture film is sandwiched in a conventional molding simultaneous drawing metal mold and the mold is closed.

FIG. 6 is a cross-sectional explanatory view showing a state in which a picture film is sandwiched and closed in another conventional simultaneous molding die with a picture.

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

8 is a cross-sectional explanatory view showing a state in which a painting film is brought into close contact with the cavity forming surface formed by the replacement mold A and the mold B in FIG. 7. FIG.

9 is a cross-sectional explanatory view showing a state in which a mold B in which a replacement mold A is incorporated and a mold C are closed to form a cavity in FIG. 8. FIG.

10 is a cross-sectional explanatory view showing a state where molten resin is injected into the cavity in FIG. 9.

FIG. 11 is a cross-sectional explanatory view showing a state in which the simultaneous-imaging-molding-imaging die is opened in FIG. 10 and the simultaneous-molding-imparting article is taken out.

[Explanation of symbols]

 A Replacement mold A B Mold B C Mold C 1 Top wall 2 Side wall 3 Painted film 30 Painted layer 4 Molded product 5 Intermediate wall 6 Bonding surface 60 Bonding 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 (8)

[Claims] 1. A top wall and an intermediate wall of a molded simultaneous painting product having a painting layer formed on the surface thereof, which continuously has a top wall having irregularities, an intermediate wall exhibiting a steep slope, and a side wall exhibiting a gentle slope. Replacement 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 for forming the top wall, the intermediate wall and the side wall in cooperation with the replacement mold A and the mold B. Of the mold C having a cavity forming surface and a resin injection port, and the joint between the replacement mold A and the mold B is located on the cavity forming surface forming the intermediate wall of the simultaneous-imaging molded article. Molding simultaneous painting die characterized by. 2. A top wall having an uneven top surface, an intermediate wall exhibiting a steep slope, and a side wall exhibiting a gentle slope are continuously formed, and most of the top wall of a molded simultaneous painting product having a painting layer formed on the surface is formed. A replacement mold A having a cavity forming surface for forming, a mold B having a cavity forming surface for forming a part of the top wall, the intermediate wall and the side wall, 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 each other, and a mold C having a resin injection port, and a joint between the replacement mold A and the mold B is molded. A molding simultaneous painting die characterized in that it is located as close to the cavity forming surface forming the intermediate wall as possible of the cavity forming surface forming the top wall of the simultaneous painting product. 3. A replacement mold A and a mold B when the molds are closed.
The simultaneous molding-molding die according to claim 1 or 2, wherein a vacuum suction groove is formed on the joint surface with the. 4. The mold B is divided into a mold D and a mold E, and a parting for a paint film is formed on a joint surface between the mold D and the mold E, and the mold E is formed. The molding simultaneous painting die according to claim 1 or 2, wherein a parting for a product is formed on a joint surface between the die and the die C. 5. A replacement mold A and a mold D when the molds are closed.
5. The simultaneous painting-molding die according to claim 4, wherein a vacuum suction groove is formed on the joint surface with the. 6. A replacement mold A, a mold B, and a mold C such that the molding simultaneous painting mold according to any one of claims 1 to 3 is used to sandwich a painting film having a painting layer. After closing the mold, the molten resin is injected into the cavity, and after the molten resin is cooled and solidified, the top wall having irregularities, the intermediate wall having a steep slope, and the side wall having a gentle slope are continuously provided, and the painting layer is formed. A method for producing a simultaneously formed molding product, comprising taking out a simultaneously formed molding product formed on a surface. 7. A replacement mold A, a mold D, a mold E, and a mold C so that the simultaneous painting with molding mold according to claim 4 or 5 is used to sandwich a painting film having a painting layer. After closing the mold, the molten resin is injected into the cavity, and after the molten resin is cooled and solidified, the top wall having irregularities, the intermediate wall having a steep slope, and the side wall having a gentle slope are continuously provided, and the painting layer is formed. A method for producing a simultaneously formed molding product, comprising taking out a simultaneously formed molding product formed on a surface. 8. The method for producing a simultaneous painting product according to claim 7, wherein a vacuum suction groove is formed in the joint surface between the replacement mold A and the mold D when the mold is closed.