JPH11320604A - Apparatus for injection molding in-mold decorating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for injection molding in-mold decorating which can appropriately perform each process after clamping process even when an in-mold decorating sheet is curled and can improve efficiency and yield of production. SOLUTION: A female mold 12 has the first parting faces 14a and 14a which the central part Sa in the width direction of an in-mold decorating sheet S is faced to and is brought into contact with and the second parting faces 14b and 14b which both end parts Sb and Sb in the width direction of the in-mold decorating sheet S is faced to and is brought into contact with and are inclined to the first parting faces 14a and 14a and a clamping means 20 has the first pressing faces 21a and 21a and the second pressing faces 21b and 21b inclined to the first pressing faces 21a which are respectively faced and brought into contact with the first and the second parting faces 14a, 14a, 14b and 14b in placing the in-mold decorating sheet S between them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative laminated product (product) in which a painted sheet on which a pattern, a character or the like is applied in a mold at the same time as injection molding is integrally adhered and laminated on the surface of an injection resin molded product.
The present invention relates to an injection molding simultaneous painting apparatus which obtains the following.

[0002]

2. Description of the Related Art Several methods have been proposed for simultaneous injection molding and painting methods in which a painting sheet is integrally adhered to the surface of an injection resin molded article simultaneously with injection molding.
Most of them are arranged so that all or some of the following steps (a) to (i) are performed in the stated order or permuted, and the steps are sequentially performed or a plurality of steps are simultaneously performed in parallel or in parallel. (Japanese Patent Publication No. 50-19132, Jitsuhei 3
-56344, JP-B-7-41637, etc.).

(A) A sheet supply step of supplying a picture sheet onto a female parting surface used for injection molding. (B) a clamping step of fixing and holding the painted sheet on the female parting surface; (C) A heating softening step of heating and softening the painted sheet with a hot platen or the like. (D) A stretching step (preliminary molding step) of stretching the painted sheet along the female cavity by vacuum suction and / or air supply. (E) A mold clamping step of moving one of the female mold and the male mold (usually a female mold) to the other (usually a male mold) to clamp the mold. (F) An injection molding step of injecting and filling a resin (molten resin) in a flowing state from the male mold side into a cavity formed between the female mold and the male mold to perform injection molding. (G) A mold opening step of separating the female mold and the male mold. (H) A sheet trimming step of separating a portion of the painted sheet to be attached to the injection resin molded body from another portion (excess portion). (I) A take-out step of taking out the laminated product on which the painted sheet is adhesively laminated from both the male and female molds.

[0004] The simultaneous execution of a plurality of steps means that a plurality of steps are included in one step. For example, in the mold clamping step (e), the painted sheet is divided into a female type and a male type. If it is not fixed and held between them, the clamping step (b) is performed simultaneously with the mold clamping step, and the painted sheet is used in the injection molding step (f). If the stretching is performed by the heat and pressure of the injected molten resin, this means that the stretching step (d) is performed simultaneously with the injection molding step.

[0005] As the painting sheet, either a laminated sheet (laminated sheet) or a transfer sheet is used in accordance with the product type. In the case of a laminated sheet, painting is performed as it is by injection molding. That is, all the layers of the sheet are bonded and integrated with the surface of the injection resin molded body to form a decorative layer. On the other hand, when the painting sheet is a transfer sheet, the support sheet of the painting sheet integrated with the surface of the injection resin molded body is peeled off, and only the transfer layer such as the decoration layer remains on the injection resin molding body side. Then, the painting is completed by forming a decorative layer.

[0006]

In the simultaneous painting method for injection molding, the painting sheet is supplied onto the female parting surface, and is pressed and fixed on the female parting surface by a clamping means. It is desirable that the painted sheet be heated and softened by a board or the like, and that the painted sheet be stretched by a vacuum suction means or the like so as to be in close contact with the female mold cavity. A rectangular frame-shaped or cross-girder-shaped clamper is provided as a clamping means for pressing and fixing the female part to the female parting surface.

However, the painted sheet supplied on the female parting surface may be curled (curved) in the width direction due to its characteristics or due to environmental conditions and the like. In some cases, the painted sheet could not be properly pressed and fixed to the female parting surface, and the subsequent stretching step or the like could not be performed.

This will be briefly described below with reference to FIGS. FIG. 6 is a perspective view showing a peripheral portion of a female mold 12 'in a sheet feeding step of a conventionally used injection molding simultaneous painting apparatus 10', and FIG. FIG.

In the illustrated female mold 12 ', a cavity 13 corresponding to a laminated product to be obtained is provided, and a predetermined number of vacuum suction holes 17 as vacuum suction means, a vacuum suction passage 18, and an external vacuum source. A connected conduit 19 and the like are provided, and on the flat parting surface 14 ′, a clamper 20 ′ having a rectangular frame-like or cross-girder shape in plan view is in a direction in which the clamper 20 ′ comes into contact with or separates from the parting surface 14 ′. (X direction) and a mounting groove 2 in which an O-ring 22 is mounted on the outer peripheral side of the parting surface 14 ′.
The O-ring 22 is opposed to the clamper 20 '.

The painting sheet S is unwound from an unwinding machine (not shown) disposed above the female die 12 'and guided by guide rollers or the like, while the parting surface 14' of the female die 12 'is being drawn. The tip is lowered so as to hang down in a free state so as to pass between the pressing surface 21 of the clamper 20 ′ and one shot of the tip side on the parting surface 14 ′ of the female mold 12 ′. Supplied.

Here, as can be clearly understood from FIG. 7, the painted sheet S is curled (curved) in the width direction so as to project toward the female mold 12 '. When the clamper 20 'is advanced to the female mold 12' side so as to press and fix the curled pictorial sheet S to the female parting surface 14 ', as shown in FIG. (Both ends Sb, Sb or one end) may be folded inward (toward the center Sa) below the pressing surface of the clamper 20 in some cases.

If the widthwise end portion of the painted sheet S is folded in this way, the operation of pressing and fixing the painted sheet by the clamper 20 'cannot be performed properly, and the subsequent stretching process and the like cannot be performed. Is required, and the molding operation is delayed. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to enable each step after the clamping step to be performed properly even if the painted sheet is curled, and An object of the present invention is to provide an injection molding simultaneous painting apparatus capable of improving efficiency and yield.

[0013]

In order to achieve the above-mentioned object, an injection molding simultaneous painting apparatus according to the present invention basically comprises both male and female molds, and is provided on a parting surface of the female mold. Along with supplying the painted sheet, the supplied painted sheet is pressed and fixed on the parting surface by the clamping means, and then the male and female forming molds are clamped,
The resin in the fluid state from the injection molding machine is injected and filled from the male mold into a molding cavity formed between the female mold and the male mold, and after the resin is solidified, the mold opening of the male and female molds is opened. And a laminated product in which a painted sheet is adhesively laminated is taken out of the male and female molds, and the female mold is provided with a first part in which a widthwise central portion of the painted sheet is brought into contact with the first product.
And a second parting surface inclined with respect to the first parting surface, at which both ends in the width direction of the painting sheet are brought into contact with each other. Has a first pressing surface that is brought into contact with the first and second parting surfaces with the painting sheet interposed therebetween, and a second pressing surface that is inclined with respect to the first pressing surface. It is characterized by:

In the apparatus of the present invention, the female second parting surface and the second pressing surface of the clamping means have an inclination angle which is equal to each other, and they are pressed so as to sandwich both ends of the painting sheet. To be fixed. In addition, the inclination direction and the inclination angle of the second parting surface of the female die and the second pressing surface of the clamp unit are determined in advance by examining the direction and angle at which the painted sheet is curled by experiments or the like, and the curl is determined. Set according to the direction and angle.
Thereby, the second parting surface of the female mold and the second pressing surface of the clamping means are substantially parallel to both ends of the painted sheet supplied on the female parting surface in a curled state ( The intersection angle is 0 or a minimum).

In the simultaneous painting apparatus for injection molding according to the present invention having such a configuration, in the painting sheet supplying step, the painting sheet curled in the width direction has a female central first part in the width direction. It is inserted between the parting surface and the first pressing surface of the clamping means, and both ends in the width direction are inserted between the female second parting surface and the second pressing surface of the clamping means. Is done. In this case, since the female second parting surface and the second pressing surface of the clamping means are inclined according to the direction and angle at which the picture sheet curls, respectively, the width of the picture sheet and the width of the picture sheet are inclined. Both ends in the width direction are substantially parallel to each other (the crossing angle is 0 to a minimum), and both ends in the width direction of the painted sheet are female second
It is arranged along the parting surface of.

Therefore, in the subsequent clamping step, when the clamp means is advanced to the female side in order to press and fix the curled picture sheet S on the female parting surface 14 ', the second pressing of the clamp means The surfaces are in contact with both ends in the width direction of the painted sheet in a substantially parallel state.

For this reason, as in the conventional apparatus in which the female parting surface and the pressing surface of the clamping means are flat surfaces in conformity with the uncurled pictorial sheet, both ends of the curled pictorial sheet are inward (center). Side), the operation of pressing and fixing the painted sheet by the clamp means can be performed properly, the subsequent stretching process can be performed without delay, and the production efficiency, yield, etc. are improved. . In the present invention, the male and female molds are made of metal such as iron or ceramics or the like, and small holes (e.g., vacuum suction holes) for vacuum suction or supply of compressed air as necessary.
Is provided.

Further, the female mold is constituted by an aggregate of a plurality of divided parts (in a so-called nested structure), a slit-like gap is formed between adjacent divided parts, and this gap is used as a vacuum suction hole to perform vacuum suction. May be performed. In addition, when the method of extending the picture sheet to the female mold cavity surface by the heat and pressure of the injection resin without performing the stretching process to the female mold cavity surface is used, the vacuum suction hole is unnecessary. As described above, this female mold is provided with a normal flat parting surface (first parting surface) and an inclined parting surface (second parting surface).

The male mold is provided with a runner for injecting the resin in a flowing state and a required gate. The number, position, shape and the like of the gates can be freely set in consideration of the shape and the like of the product to be obtained. Further, in order to fix and hold the painting sheet on the female parting surface, a clamping means having an inclined pressing surface as described above is additionally provided. As the clamping means, a frame-shaped or double-girder-shaped holding plate or the like can be used, and the driving thereof can be performed by using a molding driving force such as a mold clamping operation or by using the power of an ejector pin driving mechanism. In addition to this, it is possible to provide a separate driving means such as a fluid pressure actuator.

The supply system of the painted sheet employed in the apparatus of the present invention may be any system as long as there is a risk that the painted sheet may be curled, and an unwinding and winding system (roll / roll system), A method of unwinding from the unwinding machine and supplying the free end to the female parting surface, and holding the leading end of a long continuous belt-like sheet wound in a roll shape with a transport chuck or the like to achieve the female mold In addition, any of a supply method such as a method in which a sheet is cut by every shot to form a single sheet and a method in which a single sheet is supplied by a robot or the like can be adopted.

In a preferred embodiment of the apparatus of the present invention, a hot plate for heating and softening the painted sheet is provided. As the hot plate, any of a contact heating method using conduction heat and a non-contact heating method using radiant heat or dielectric heating may be adopted, but the most preferable is a non-contact heating method using infrared radiation or the like. This is the case. Means for transferring the hot plate between the inside and outside between the male and female molds include a fluid pressure cylinder such as an air cylinder, a linear transfer mechanism such as a rack and pinion or a screw feed, and a bogie traveling on a guide rail. Various forms such as a mechanism can be adopted.

The painting sheet is composed of a base sheet and a decorative layer laminated thereon, and is used as a final laminated product (laminate sheet) which is used as a final product while the base sheet is closely adhered to the molded product. Once the painted sheet and the molded article are integrated, any transfer sheet that peels off the substrate sheet (support sheet) while leaving only the decorative layer (transfer layer) on the molded article side can be used.

In the case of the laminated sheet, a thermoplastic resin such as polyolefin resin such as polyethylene and polypropylene, polyvinyl chloride, acrylic resin, polystyrene, ABS resin, polycarbonate resin and polyester resin is used as the base sheet. Can be. The thickness of the base sheet is usually about 20 to 500 μm. As the decorative layer, a printed pattern, colored or transparent coating, a metal thin film, or a functional layer such as a hard coating film, an antifogging paint, or a conductive layer can be used.

In the case of the transfer sheet, it is for transferring a transfer layer composed of a pattern layer or the like once formed on a releasable support sheet to another transfer target. A release layer may be provided according to the conditions, and the transfer layer includes a release layer, a decorative layer, an adhesive layer, and the like, and layers other than the decorative layer are selected as necessary. The decorative layer is selected from a pattern layer, a metal thin film layer (part or entire surface) or a functional layer such as a hard coating film, an anti-fog coating film, or a conductive layer.

The support sheet is made of nylon 6, nylon 6
A flexible thermoplastic resin film such as a polyamide resin such as No. 6 or the like, a polyolefin resin such as polyethylene or polypropylene, polyvinyl chloride or the like, or a laminate thereof is preferable. The resin for injection molding is a liquid or fluid state obtained by heating and melting a thermoplastic resin such as ABS (acrylonitrile-butadiene-styrene copolymer) resin, polystyrene, polyvinyl chloride, acrylic resin, polycarbonate resin, etc. Or, two-part curing type, catalyst curing type resin, for example, urethane resin, polyester resin, uncured liquid such as epoxy resin and the like can be used conventionally known materials for simultaneous injection molding and painting, It is selected according to the required physical properties and cost.

[0026]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a peripheral portion of a female mold at the time of a sheet feeding step in one embodiment of an injection molding simultaneous painting apparatus according to the present invention, and FIG. 2 is a view of the female mold peripheral portion at that time from below. FIG.

The laminated product to be obtained by the simultaneous injection molding painting apparatus 10 of this embodiment is a panel having a rectangular shape and a U-shaped cross section in plan view, and a painting sheet S is adhered and laminated on the surface of the injection resin molded body. Things. Here, as the above-mentioned painted sheet S, a base sheet made of acrylic resin (having a thickness of 125 μm) and a decorative layer (one of acrylic resin and vinyl chloride-vinyl acetate copolymer) laminated thereon by a gravure printing method are used. : 1 weight ratio mixture of a binder, red iron oxide and a picture layer of an ink composed of a pigment mainly composed of carbon black) and an adhesive layer (a vinyl chloride-vinyl acetate copolymer system). A laminated sheet (laminated sheet) used as a final product while being tightly integrated with the molded article is used. The decorative layer (pattern layer) has a wood grain pattern formed by combining three colors of a pattern plate, and the adhesive layer has a gravure solid printing plate (screen depth of 60 μm) having a screen ruling of 40 lines / cm. The thickness of 2μ formed by gravure printing (by two-color printing)
m layer.

Injection molding simultaneous painting apparatus 10 of this embodiment
Is provided with a female mold 12 and a male mold 25 each having an uneven shape corresponding to the above-mentioned laminated product to be obtained. The female mold 12 has a bottom portion fixed to a movable plate (not shown), The ram or the like of the cylinder moves forward and backward in a horizontal direction (X direction in FIG. 1), in other words, in a direction approaching / separating from the male mold 25.

In this embodiment, the female die 12 is movable and moves in the horizontal direction as described above. However, the present invention is not limited to this. It is also possible to adopt a mode in which the female molds are vertically opposed and one of them is moved in the vertical direction.

In the female mold 12, a cavity 13 corresponding to the laminated product is formed, and flat first parting surfaces 14a, 14a are formed on the upper and lower sides of the outer periphery of the cavity 13 in the Z direction. At the same time, Y of the cavity 13 and the first parting surfaces 14a, 14a
The first parting surfaces 14a, 14a
Second parting surfaces 14b, 14b inclined with respect to
Is formed, and the second parting surface 14 is formed.
b, 14b, the first parting surface 1
Third parting surfaces 14c, 1 parallel to 4a, 14a
4c is formed.

Here, the first parting surface 14
a, 14a, the widthwise central portion Sa of the painting sheet S is brought into contact with the second parting surfaces 14b, 14b.
Is such that both ends Sb, Sb in the width direction of the painted sheet S are brought into contact with each other. Further, the cavity 13
A predetermined number of vacuum suction holes 17 are opened, and the vacuum suction holes 17 are connected to an external vacuum pump via a vacuum suction passage 18 and a conduit 19 formed inside the female die 12. In this embodiment, the vacuum suction hole 1
7, a vacuum suction means is constituted by the vacuum suction passage 18, the conduit 19, an external vacuum pump, and the like.

The first parting surfaces 14a, 14a
And around the cavity 13 at the second parting surfaces 14b, 14b so as to surround the cavity 13.
An annular mounting groove 23 in which the ring 22 is mounted is provided. The O-ring 22 hermetically seals the cavity 13 and the outside when a rectangular frame-shaped or cross-girder-shaped clamper 20, which will be described later, is pressed against the parting surface 14 of the female die 12 with the painting sheet S interposed therebetween. Acts as a barrier to

On the other hand, although not shown, the male mold 25 is fixed to a fixed plate on which a nozzle of an injection molding machine is mounted. The male mold 25 has a convex shape corresponding to the laminated product shape. A portion (core portion) 26 is provided, and a runner 27 for injecting the molten resin and a gate 28 connected to the runner 27 are provided therein.

The female die 12 is provided with the picture sheet S on the first parting surface 1 of the parting surface 14 thereof.
4a, 14a and second parting surfaces 14b, 14
A clamper 20 having a rectangular frame shape or a cross-girder shape in plan view is provided for pressing and fixing to the member b. The female mold 12 side surface of the clamper 20 is
The first pressing surface 21a, which is brought into contact with the first parting surface 14a, 14a and the second parting surface 14b,
And a second pressing surface 21b inclined with respect to the pressing surface.

The clamper 20 is driven by a driving mechanism (not shown) by four connecting rods 24 slidably fitted in through holes provided near the four corners of the female mold 12 by a driving mechanism (not shown). It can move forward and backward in the direction perpendicular to the parting surfaces 14a, 14a. The male mold 25 is provided with an accommodation recess 29 having a depth that allows the clamper 20 to perform a releasing operation for releasing the pressed state of the picture sheet S in a mold clamping state as shown in FIG. ing.

In addition to the above, as shown by a virtual line in FIG. 3, a hot platen 40 is provided so as to heat and soften the picture sheet S pressed and fixed to the parting surface 14 by the clamper 20. The hot platen 40 is moved by a transfer means such as an air cylinder (not shown) from a standby position outside the male and female molds to a sheet heating position inserted into the central opening 20a of the clamper 20 as shown. The painted sheet S is heated and softened by radiant heat from the heat radiation surface 42 at the front end face.

In the simultaneous injection molding painting apparatus 10 according to the present embodiment having such a configuration, in performing the simultaneous injection molding painting, first, the painting sheet S is firstly wound on the female mold 12. While being unwound from an unloading machine (not shown) and guided by guide rollers or the like, the parting surface 14 of the female die 12 and the pressing surfaces 21a,
1b, the tip is lowered so as to hang down in a free state, and one shot on the tip side is supplied onto the parting surface 14 of the female die 12.

Here, in the present embodiment, the female mold 1
The second second parting surfaces 14b, 14b and the second pressing surfaces 21b, 21b of the clamper 20 have inclination angles which are equal to each other, and they are pressed so as to sandwich both ends Sb, Sb of the painted sheet S. To be fixed.

The inclination direction and the inclination angle of the second parting surfaces 14b, 14b of the female die 12 and the second pressing surface 21b of the clamper 20 are determined in advance in the direction in which the picture-sheet S is curled by an experiment or the like. The angle is determined in advance, and set according to the curling direction and the angle (here, the curl is approximately 30 ° in the direction convex toward the female mold 12).
Thereby, the second parting surface 14 of the female mold 12 is
b, 14b and the second pressing surface 21 of the clamper 20
The b and 21b are substantially parallel to each other (the intersection angle is 0 or extremely small) with both ends Sb and Sb of the painted sheet S supplied on the female parting surfaces 14a, 14a, 14b and 14b in a curled state. .

Therefore, in the painting sheet supplying step, the painting sheet S curled in the width direction has a widthwise central portion Sa at the first parting surface 1 of the female mold 12.
4a, 14a and the first pressing surface 21a of the clamper 20,
21a, and both ends Sb, Sb in the width direction of the second parting surface 14b of the female mold 12,
14b and the second pressing surfaces 21b, 21b of the clamper 20
Inserted between In this case, the second parting surfaces 14b, 14b of the female mold 12 and the second pressing surfaces 21b, 21b of the clamper 20 are respectively inclined in accordance with the direction and angle at which the picture sheet S curls. Therefore, they and the both ends Sb, Sb in the width direction of the painted sheet S are in a substantially parallel state (the crossing angle is 0 to a minimum), and both ends Sb, Sb in the width direction of the painted sheet S are the second They are arranged along the parting surfaces 14b, 14b (see FIG. 2).

Accordingly, in the subsequent clamping step, when the clamper 20 is advanced toward the female mold 12 in order to press and fix the curled picture sheet S to the female parting surface 14, the second pressing of the clamper 20 is performed. Face 21
b is in contact with both ends Sb, Sb in the width direction of the painted sheet S in a substantially parallel state. For this reason, both ends Sb and Sb of the curled painting sheet S are inward (center) as in the conventional device in which the female parting surface and the pressing surface of the clamper are flat surfaces in conformity with the uncurled painting sheet. Side) does not occur, and as a result, the operation of pressing and fixing the picture sheet S by the clamper 20 can be performed properly, and the subsequent stretching process can be performed without delay, thereby improving production efficiency and yield. I do.

As described above, after the clamping step is performed, as shown in FIG. 3, a heating and softening step of the painted sheet S by the hot platen 40 is performed, and the painted sheet S is removed from the vacuum suction holes 17 by the hot platen 40. , 17 to vacuum suction passage 18
Then, an elongating step of elongating the female mold 12 so as to be closely adhered along the cavity 13 is performed by vacuum suction through the conduit 19. In this stretching step, the painted sheet S is vacuum-sucked by the vacuum suction means including the above-described vacuum suction holes 17 and the like, drawn into the cavity 13, and finally brought into close contact with the cavity 13. (See FIG. 4).

When the stretching step is performed as described above, the hot platen 40 is moved from the standby position to the sheet heating position as shown in FIG. 3, and the painted sheet heating and softening step is performed. Thereafter, the hot platen is moved to the standby position again, and as shown in FIG. 4, a mold clamping step of moving the female mold 12 toward the male mold 25 to perform mold clamping is performed. The runner 27 of the male mold 25 is provided in a molding cavity 13 formed between the
Then, an injection molding step of injecting and filling a molten resin (heat-resistant ABS, resin temperature 240 ° C.) with a predetermined injection pressure through the gate 28 is performed.

In the injection molding process, the sheet S with the picture
After the molten resin in the molding cavity 13 is cooled (mold temperature 60 ° C.) and solidified, a mold opening step of separating the female mold 12 and the male mold 25 is performed. At the same time, a step of taking out the obtained laminated product is performed. In the case where the direction of curling of the painted sheet S is opposite to that of the above-described embodiment, that is, in the case where the painted sheet S curls in a direction concave toward the female mold, as shown in FIG. The second parting surface 14b 'of
14b 'and the second pressing surface 21b' of the clamper 20,
21b 'may be formed in the opposite direction to the above embodiment.

[0045]

As will be understood from the above description, in the simultaneous injection molding and painting apparatus according to the present invention, the female second
And the second pressing surface of the clamping means,
Since the painted sheet is inclined in accordance with the direction and angle at which the painted sheet curls, they are almost parallel to both ends in the width direction of the painted sheet (intersection angle is 0 or extremely small).
In the clamping step, when the clamping means is advanced to the female side in order to press and fix the curled picture sheet S to the female parting surface 14, the second pressing face of the clamping means is Both ends in the width direction are substantially parallel to each other. For this reason, both ends of the curled painting sheet face inward (center side) as in the conventional device in which the female parting surface and the pressing surface of the clamping means are flat surfaces in accordance with the uncurled painting sheet. Such a problem that the sheet is folded does not occur. As a result, the operation of pressing and fixing the painted sheet by the clamp means can be performed properly, and the subsequent stretching step can be performed without delay, thereby improving the production efficiency and the yield.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a peripheral portion of a female mold in a sheet supply step in an embodiment of a simultaneous painting apparatus for injection molding according to the present invention.

FIG. 2 is a cross-sectional view of the female mold shown in FIG. 1 as viewed from below.

FIG. 3 is a cross-sectional view for explaining a clamping step and a heating softening step of the apparatus shown in FIGS. 1 and 2;

FIG. 4 is a cross-sectional view for explaining a mold clamping step and an injection molding step of the apparatus shown in FIGS. 1 and 2;

FIG. 5 is a cross-sectional view showing a modified example of the device shown in FIGS.

FIG. 6 is a perspective view showing a peripheral portion of a female mold in a sheet supply step of the conventional simultaneous injection molding painting apparatus.

FIG. 7 is a cross-sectional view of the female peripheral portion of the conventional device shown in FIG. 6 as viewed from below.

8 is a cross-sectional view for explaining a clamping step of the conventional apparatus shown in FIGS. 6 and 7. FIG.

[Explanation of symbols]

 S Painting sheet 10 Injection molding simultaneous painting apparatus 12 Female mold 13 Cavity 14a First parting surface 14b Second parting surface 17 Vacuum suction hole 20 Frame-shaped clamper 21a First pressing surface 21b Second pressing surface 25 Male

Claims (1)

[Claims] The present invention further comprises a male / female forming die, a painted sheet is supplied onto a parting surface of the female mold, and the supplied painted sheet is pressed and fixed on the parting surface by clamping means. The male and female molds are clamped, and the resin in a flowing state from an injection molding machine is injected and filled from the male mold into a molding cavity formed between the female mold and the male mold. After solidifying, the mold opening of the male and female molds is performed, and an injection molding simultaneous painting apparatus configured to take out a laminated product in which a painting sheet is bonded and laminated from the male and female molds, wherein the female mold is A first parting surface in which the widthwise central portion of the painting sheet is brought into contact with the second part inclined with respect to the first parting surface, in which both widthwise end portions of the painting sheet are brought into contact with each other; Surface The clamp means includes a first pressing surface that is brought into contact with the first and second parting surfaces of the female mold with a painting sheet interposed therebetween, and a second pressing surface that is inclined with respect to the first pressing surface. A simultaneous injection-molding and painting apparatus, characterized by having a pressing surface of: