JPH1044189A - Device and method for manufacturing two-color molding simultaneous muffle painting product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a two-color molding simultaneous muffle painting product manufacturing device and a two-color molding simultaneous muffle painting product manufacturing method thereof in which the two-color molding simultaneous muffle painting product with a good-looking pattern formed on one of both of materials of different material quality can be manufactured efficiently. SOLUTION: In a two-color molding simultaneous muffle painting product manufacturing device provided with a primary molding means composed of a primary molding core mold 11 and a primary molding cavity mold 12, a secondary molding means composed of a secondary molding core mold 14 and a secondary molding cavity mold 15 and a muffle painting sheet feed means, an intermediate plate 19 with a primary molding resin section retaining means is provided to be movable between the position located between the primary molding core mold 11 and the primary molding cavity mold 12 and the position located between the secondary molding core mold 14 and the secondary molding cavity mold 15 and a decorative sheet can be fed between the cavity mold of at least one of either the primary molding means or the secondary means and the intermediate plate 19 by the decorative sheet feed means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing apparatus and a manufacturing method for a two-color molded simultaneous painting product used for a front panel, a case, a button of an AV device or a home appliance, an instrument panel or a button of an automobile, and the like.

[0002]

2. Description of the Related Art Conventionally, as a method of manufacturing a product such as an input button of a computer, two types of molten molding resins having different colors and materials are sequentially injected from two nozzles of one injection molding machine. 2 where two different types of molding resin parts are joined
There is a so-called two-color molding method for producing a colored molded product. In addition, a painting sheet having a pattern layer or the like formed on a base sheet is closed and sandwiched, and a molten molding resin is injection-molded, and at the same time, the painting sheet is adhered to a resin molded product to obtain a simultaneously molded painting product. There is a so-called molding simultaneous painting method.

[0003]

As the design expression by the former two-color molding method, there are two colors or two types depending on the color and material of the resin to be injection-molded. It didn't work. In the latter,
Even if the design is satisfied by the pattern of the transfer layer, the material is limited to a single material. For example, it was not possible to obtain a button having a button made of a thermoplastic elastomer resin in an audio panel made of an ABS resin, and having a multicolored and beautiful design applied to any resin. Also, in the insert molding, a primary molded product (for example, a simultaneously painted product) is obtained first, and this is inserted (arranged) in a secondary molding die in a separate step, and the secondary molded resin is obtained. There is also a method of injection molding, but since the secondary molding is performed with the passage of time after obtaining the primary molded product, the following problem occurs, and practically, it is hardly performed. 1. It is difficult to insert into the secondary molding die due to shrinkage strain of the primary molded product. Or it may not be possible. 2. Since the secondary molded product is molded after the primary molded product has cooled, close contact between the primary molded product and the secondary molded product is not possible. Alternatively, since the adhesion between the primary molded product and the secondary molded product is poor, there is a problem that the insert sheet is peeled off in the durability test. 3. Painting can be performed only on the primary molded product side (positioning with the secondary molded product becomes a problem). 4. The process is separated and the cost increases.

[0004] It is an object of the present invention to manufacture a two-color molded simultaneous painting product which can efficiently produce a two-color molded simultaneous painting product in which an attractive pattern is formed on one or both of different materials. It is an object of the present invention to provide an apparatus and a method for producing a two-color molded simultaneous painting product.

[0005]

In order to achieve the above-mentioned object, a two-color molding simultaneous painting product manufacturing apparatus of the present invention has a primary molding resin injection path as described in claim 1. A primary molding means including a secondary molding core mold and a primary molding cavity mold, and a secondary molding means including a secondary molding core mold having a secondary molding resin injection path and a secondary molding cavity mold. In the two-color molding simultaneous painting product manufacturing apparatus having the painting sheet supply means, the intermediate plate having the primary molding resin portion holding means is provided between the primary molding core mold and the primary molding cavity mold. And a position between the secondary molding core mold and the secondary molding cavity mold, the painting sheet supply means being at least one of the primary molding means and the secondary molding means. Between one cavity mold and the intermediate plate The painting sheet was to be supplied.

According to a second aspect of the present invention, there is provided a method of manufacturing a simultaneous two-color molded article, comprising the steps of: First, the primary molding cavity mold and the primary molding core mold are clamped with the intermediate plate interposed therebetween, and then the primary molding is performed and the primary molding resin held by the primary molding resin holding means is held. Part, and then move the held intermediate plate to a position between the secondary molding cavity mold and the secondary molding core mold, and move the intermediate plate holding the primary molding resin part between the secondary molding cavity mold and the secondary molding core mold. The secondary molding cavity mold and the secondary molding core mold are clamped between them, and then the secondary molding is performed to obtain a secondary molding resin part, whereby a primary molding resin part and a secondary molding resin part are formed. Are integrated and at least one of the primary molding resin part and the secondary molding resin part A method for producing a two-color molded article having a painting sheet adhered thereto, wherein the two-color molded article is provided between a primary molding cavity mold and an intermediate plate or between a secondary molding cavity mold and an intermediate plate. In at least one of them, the painting sheet is arranged before clamping.

Further, according to the manufacturing method of the present invention, claim 3
As described in, part of the adhesive layer of the painting sheet disposed between the primary molding cavity mold and the intermediate plate,
In the secondary molding, it may be adhered to the secondary molding resin part.

Further, according to the manufacturing method of the present invention, claim 4
As described in the above, using a painting sheet on which at least a picture layer and an adhesive layer are laminated on the base sheet and the base sheet can be peeled off, the base sheet is formed after at least one of the primary molding and the secondary molding. You may make it exfoliate.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. The painting sheet and the two-color simultaneous painting product manufacturing apparatus used in the method for producing a two-color simultaneous painting product of the present invention will be described first.

The painting sheet will be described. Painting sheet 1
Basically has at least a pattern layer 3 on the base sheet 2,
The adhesive layer 4 is laminated. The types of the decorating sheet 1 are those that do not peel the base sheet 2 after the molding resin adheres to the decorating sheet (hereinafter, referred to as “insert sheets”; see FIG. 6), and those that can peel the base sheet 2 (hereinafter, referred to as “insert sheet”). This is referred to as a “transfer sheet” (see FIG. 7). When used as a transfer sheet, a release layer 5 may be formed between the base sheet and the picture layer 3, or a varnish may be applied to the base sheet 1 to impart releasability. In the transfer sheet, a layer in which at least the picture layer 3 and the adhesive layer 4 are laminated is referred to as a transfer layer. Hereinafter, the painting sheet 1 used at the time of primary molding is referred to as a painting sheet 6 for primary molding or a transfer sheet for primary molding. The painting sheet 1 used at the time of secondary molding is referred to as a painting sheet 7 for secondary molding or a transfer sheet for secondary molding. In addition, what is transferred to the primary molding resin part 8 is a primary molding transfer layer, and what is transferred to the secondary molding resin part 9 is a secondary molding transfer layer. The material of the base sheet 2 includes various resins such as polyethylene terephthalate, acrylic, and thermoplastic elastomer. The material of the release layer 5 is a polyacrylic resin or the like. If the release layer 5 requires hardness, an ionizing radiation curable resin such as an ultraviolet curable resin may be used. The ionizing radiation-curable resin may be used alone, or may be used as a mixture with another resin. The picture layer 3 uses a resin binder and a pigment or a dye. The picture layer 3 may use a resin binder and a metal pigment or an inorganic pigment having a masking property. For the adhesive layer 4, a heat-sensitive or pressure-sensitive resin suitable for the material of the primary molding resin and the secondary molding resin is appropriately used. For example, if the primary molding resin is an acrylic resin and the secondary molding resin is a urethane resin,
It is preferable to use a vinyl chloride-vinyl acetate copolymer resin as the adhesive layer. The release layer 5, the picture layer 3, and the adhesive layer 4 are formed by various printing methods. The decorating sheet 1 may include a primary adhesive portion where the adhesive layer 4 adheres to the primary molding resin 8 and a secondary adhesive portion which adheres only to the secondary molding resin 9. In the painting sheet 1, the adhesive layer 4 is bonded to the primary molding resin.
It may be composed of only the next bonding portion. Painting sheet 1
The portion corresponding to the secondary molding resin portion 9 may be cut out. The painting sheet 1 may be cut into single sheets, or may be rolled up.

A two-color molding simultaneous painting product manufacturing apparatus will be described (FIGS. 1 to 4). Two color molding simultaneous painting product manufacturing equipment
Primary molding means including a primary molding core mold 11 having a primary molding resin injection path 10 and a primary molding cavity mold 12, and secondary molding core dies 14 and 2 having a secondary molding resin injection path 13. In the two-color molding simultaneous painting product manufacturing apparatus having the secondary molding means including the secondary molding cavity mold 15 and the painting sheet supply means 16, the intermediate plate 19 having the primary molding resin part holding means is provided with the primary molding resin. A painting sheet supply is provided so as to be movable between a position between the molding core mold and the primary molding cavity mold and a position between the secondary molding core mold and the secondary molding cavity mold. Means 16 is at least one of the primary molding means and the secondary molding means,
The painting sheet 1 is supplied between the intermediate plate 19 and the cavity mold.

A core mold 11 for primary molding and a core mold 14 for secondary molding are mounted on a fixed platen 20. The cavity is filled with the primary molding resin 22 injected from the injection unit 21 via the primary molding resin injection path 10 of the primary molding core mold 11. The secondary molding resin 23 injected from the injection unit 21 through the secondary molding resin injection path 13 of the secondary molding core 14 passes through the nozzle hole 28 and fills the cavity. The primary molding cavity mold 12 and the secondary molding cavity mold 15 are attached to a movable platen 24. Cavity mold 12 for primary molding and cavity mold 15 for secondary molding
A vacuum suction hole (not shown) for sucking the painting sheet 1 may be formed on the inner surface of the sheet. The primary molding core mold 11 and the secondary molding core mold 14 are arranged so as to face the primary molding cavity mold 12 and the secondary molding cavity mold 15, respectively. The movable platen 24 moves along a tie bar 26 by a drive source 25 such as a hydraulic cylinder or an electric servomotor drive system. By this movement, the mold is closed and the mold is opened.

The intermediate plate 19 has means for holding a primary molded resin portion. The primary molded resin portion holding means may be one in which a holding pin 32 that pierces the primary molded resin portion is set up at a portion of the intermediate plate 19 where the primary molded resin portion 8 contacts (FIG. 8). Alternatively, the primary molded resin part holding means is:
The hole 17 for primary molding and the hole 1 for secondary molding are formed in the intermediate plate 19.
8 are formed, and the primary molding hole 17 and the secondary molding hole 18 are positioned between the primary molding core mold and the primary molding cavity mold, and the secondary molding core mold is formed. Some are movable between a position and a secondary mold cavity. Specifically, the intermediate plate 19 has a gap between the primary molding cavity mold 12 and the primary molding core mold 11 and a gap between the secondary molding cavity mold 15 and the secondary molding core mold 14. Move between. The intermediate plate 19 is provided with a movable plate 24 such as a rotary plate capable of rotating operation and a slide plate capable of sliding.
It is good to attach to. The rotation of the intermediate plate 19 about the shaft 27 causes the holding pin 32 or the primary molding hole 17 and the secondary molding hole 18 to move in an arc (FIGS. 1 to 4 and FIG. 4). 8). The shaft 27 is a movable platen 24
It may be a cantilever shaft from the side or the fixed platen 20 side, or may penetrate both the movable platen 24 and the fixed platen 20. The intermediate plate 19 may be mounted on a slide disk. The slide plate may be attached to a fixed plate or a movable plate. Further, it may be mounted on a core mold or a cavity mold. The intermediate plate 19 is driven so as to approach and separate from the cavity mold and the core mold. The intermediate plate 19 can also serve as a clamp for pressing the decorating sheet 1 against the parting surface of the cavity mold.

The injection unit 21 is provided with a horizontal molding machine (a cavity mold and a core mold of a mold are installed facing each other,
Even with horizontal molding, the vertical molding machine (cavity mold and core mold of the mold are installed facing each other up and down,
The mold may be closed vertically). A molding machine having two cylinders for plasticizing two kinds of materials, each having a nozzle hole 28 for injecting or injecting a resin into a mold may be used. The two cylinders may be either parallel or opposed, and may be arranged at right angles.
The cylinder may be arranged either vertically or horizontally. The primary molding core mold 11 and the secondary molding core mold 14 may be arranged vertically, may be arranged side by side, or may be arranged with the injection path facing each other.
It may be one that branches from one cylinder to two molding resin injection nozzles.

The painting sheet supply means 16 is provided in at least one of the primary molding means and the secondary molding means.
The painting sheet 1 is supplied between the intermediate plate 19 and the cavity mold. Painting sheet supply means 16
Includes a painting sheet feeding device 29 and a painting sheet winding device 30 (FIGS. 1 to 4). Alternatively, the painting sheet supply unit 16 includes a painting sheet feeding device 29, a painting sheet cutting unit, and a painting sheet pinch unit. The painting sheet feeding device 29 is used for accurately aligning the painting sheet 1 wound up in a roll shape with a support rod 31 for supporting the painting sheet 1 on a movable platen, a nip roll for feeding the painting sheet 1, and a cavity. Consists of sensors, etc. The decorating sheet winding device 30 includes the decorating sheet 1 sent from the decorating sheet feeding device 29 and wound in a roll shape, and a support rod 31 for supporting the decorating sheet 1 on the fixed platen 20. The cutting means cuts the decorating sheet 1 into a portion located between the core mold and the cavity mold and a portion not yet located between the core mold and the cavity mold, and cuts the decorating sheet 1 into cut ends. Means for forming a part.
The pinch means is a means for grasping the cut end of the painting sheet 1 that has not yet entered between the core mold and the cavity mold, and drawing and introducing the painting sheet 1 between the core mold and the cavity mold.

Hereinafter, a method for producing a two-color molded simultaneous painted product of the present invention will be described. The method for producing a two-color molded simultaneous painting product of the present invention basically comprises preparing the two-color molded simultaneous painting product manufacturing apparatus and the painting sheet, and first, interposing an intermediate plate therebetween. After the primary molding cavity mold and the primary molding core mold are clamped, the primary molding is performed to obtain a primary molding resin part, which is held in the primary molding resin part holding means, and then the primary molding resin is retained. While holding the part in the primary molding hole of the intermediate plate, it is moved between the secondary molding cavity mold and the secondary molding core mold to sandwich the intermediate plate holding the primary molding resin part therebetween. After the primary molding cavity mold and the secondary molding core mold are clamped with each other, secondary molding is performed to obtain a secondary molding resin part. At least one of the primary molding resin part and the secondary molding resin part. 1 is a manufacturing method of two-color molding decorating articles adhered is obtained.

Further, in the method of manufacturing a simultaneously colored two-color article according to the present invention, the painting sheet 1 is arranged between the cavity mold and the intermediate plate before the mold is clamped between the cavity mold and the core mold. is there. The arrangement may be an arrangement by a painting sheet supply device, an arrangement by moving an intermediate plate, or an artificial or mechanical arrangement. 1
Before the mold clamping at the time of the next molding, the painting sheet 1 is arranged between the cavity mold for the primary molding and the intermediate plate. There is a method of not arranging the painting sheet 1 between them. Alternatively, the painting sheet 1 is not disposed between the primary molding cavity mold and the intermediate plate before the primary molding mold clamping, and the secondary molding cavity mold is not molded before the secondary molding mold clamping. There is a method of arranging the decorating sheet 1 between the intermediate sheet and the intermediate plate. Alternatively, the painting sheet 1 is arranged between the cavity mold for primary molding and the intermediate plate before clamping in the primary molding, and the cavity for secondary molding is arranged before clamping in the secondary molding. There is a method of disposing the decorating sheet 1 between the mold and the intermediate plate. The primary molding tree is moved while the painting sheet for primary molding placed between the cavity mold for primary molding and the intermediate plate is adhered to the primary molding resin portion, and the secondary molding cavity mold is moved to the intermediate position. You may arrange | position the painting sheet for primary shaping | molding with a primary shaping | molding tree part between plates.

Hereinafter, each step of a specific example of the method for producing a two-color molded simultaneous painting product of the present invention will be described. As a specific example, before the mold clamping at the time of the primary molding, the cavity mold for primary molding 1
The painting sheet 1 is arranged between the second mold 2 and the intermediate plate 19, and the painting sheet 1 is arranged between the cavity mold 15 for secondary molding and the intermediate plate 19 before clamping in the secondary molding. What you do is explained. First, the painting sheet feeding device 29 located above the primary molding cavity mold 12
, The painting sheet 1 of a certain length is sent out before the primary molding cavity mold 12 and the primary molding cavity mold 1
The painting sheet 1 for a fixed length is wound up by a painting sheet winding device 30 located at the lower part of the second molding sheet 2 and a predetermined pattern of the primary molding painting sheet 6 is formed into the primary molding cavity mold 12.
Is placed in front of the primary molding cavity. A transfer sheet for primary molding may be used as the painting sheet 6 for primary molding. If necessary, primary molding cavity molds 12 and 1
Before closing the mold with the core mold 11 for the next molding, the painting sheet 6 for the primary molding may be heated and vacuum-sucked so as to be in close contact with the inner surface of the cavity for the primary molding of the cavity mold 12 for the primary molding. Good (Figure 1). At this time, the primary molding painting sheet 6 may be fixed around the primary molding cavity by the intermediate plate 19 or the clamp member. When the primary forming painting sheet 6 is a single sheet, it may be artificially and mechanically (robot) arranged one by one in the cavity. As described above, the arrangement of the primary forming painting sheet 6 is completed.

Next, the primary molding cavity mold 12 and the primary molding core mold 11 are clamped with the intermediate plate 19 interposed therebetween. When the primary molding hole 17 of the intermediate plate 19 is used as the primary molding resin portion holding means, the surface of the primary molding cavity mold 12, the inner surface of the primary molding hole 17 of the intermediate plate 19, A primary molding space including the surface of the secondary molding core mold 11 is formed. Hole 17 for primary molding
Can also have a function of passing the resin and holding the primary molded resin portion. When the holding pins 32 on the intermediate plate 19 are used as the primary molded resin portion holding means, it is not always necessary to have holes in the intermediate plate.
Surface of Primary Molding Cavity Mold 12 and Primary Molding Core Mold 1
A primary molding space including the first surface can be formed. The primary molding resin 22 is injected into the primary molding space to perform primary molding to obtain the primary molding resin portion 8. The mold clamping may be performed by pushing the movable platen 24 forward by the drive source 25 and the shaft 27. By closing the mold, the painting sheet 6 for primary molding is sandwiched between the cavity mold 12 for primary molding and the intermediate plate 19 (FIG. 2). Primary molding cavity mold 12 and intermediate plate 19
When the contact between the intermediate plate 19 and the primary molding core mold 11 is performed first, and then the intermediate plate 19 is
The shaft 27 may be drawn into the movable platen 24 side. By the injection of the primary molding resin 22, the primary molding resin portion 8 and the adhesive layer 4 of the primary molding painting sheet 6 adhere (FIG. 2). When a transfer sheet for primary molding is used as the painting sheet 6 for primary molding, the adhesive layer of the transfer sheet for primary molding and the primary molding resin portion are bonded to each other. The bonding means that the primary molding resin 22 in a molten state is cooled and solidified in a state in which the primary molding resin 22 is in contact with the adhesive layer 4 of the painting sheet for primary molding 6, whereby the primary molding resin portion 8 is molded and the primary molding resin is formed. This means that the portion 8 and the adhesive layer 4 are stuck together to be integrated. The injection of the primary molding resin 22 is performed by flowing the molding resin through the primary molding resin injection nozzle and the primary molding resin injection path 10 by the injection mechanism of the injection unit 21. The primary molding resin 22 and the secondary molding resin 23 may be molding resins of mutually different colors or molding resins of mutually different hardness. A specific example in the case of using molding resins of different colors is that the primary molding resin 22 is black and 2
There are combinations in which the secondary molding resin 23 is transparent, and combinations in which the primary molding resin is white and the secondary molding resin is blue. Both the primary molding resin and the secondary molding resin may be transparent. A specific example in which molding resins having different hardnesses are used is that the primary molding resin is a thermoplastic resin having a high hardness of JIS A hardness of 100 or more, and the secondary molding resin is a thermoplastic resin having a JIS A hardness of 30 to 100. Some combinations are elastomeric. Or 1
There is a combination in which the secondary molding resin is a thermoplastic elastomer having a JIS A hardness of 30 to 100 and the secondary molding resin is a high hardness resin having a JIS A hardness of 100 or more. Other resins having a high hardness of JIS A hardness of 100 or more include acrylic styrene resin, acrylic styrene butadiene resin, polycarbonate resin, acrylic resin, nylon resin, styrene resin, vinyl chloride resin, polyester resin, polyurethane resin, polypropylene resin, There is a polyethylene resin, a polybutylene terephthalate resin, or an alloy (also called a mixture or a composite product) of these resins.
Examples of the thermoplastic elastomer having a JIS A hardness of 30 to 100 include styrene-based elastomers such as styrene-butadiene-styrene (SBS) block copolymer and hydrogenated SBS block copolymer, polyester-based elastomer, polyurethane-based elastomer, and polyamide-based elastomer. In addition, JIS A hardness 30-100
As a thermoplastic elastomer, a silicone two-liquid curing resin may be provided by LIM (liquid injection molding) injection molding.

Next, the primary molding cavity mold 12 and the primary molding core mold 11 are opened, and the primary molding resin portion 8 is inserted into the primary molding holes 17 or the holding pins 32 of the intermediate plate 19. The intermediate plate 19 and the primary molding cavity mold 12 are separated while being held. Since the frictional force between the inner surface of the hole of the primary molding hole 17 or the holding pin 32 and the primary molding resin portion 8 is large, the primary molding resin portion 8 is held while the primary molding resin portion 8 is held by the intermediate plate 19. Parts 8 and 1
The next molding cavity mold 12 can be separated.
Then, the primary molding resin portion 8 is moved between the secondary molding cavity mold 15 and the secondary molding core mold 14 while holding the primary molding resin portion 8 with the primary molding holes 17 or the holding pins 32 of the intermediate plate 19 ( (Fig. 3). In the case where the transfer sheet for primary molding is used as the painting sheet 6 for primary molding, the base sheet of the transfer sheet for primary molding is opened together with the opening of the cavity mold 12 for primary molding and the core mold 11 for primary molding. Peel off 2
While the primary molding resin portion 8 to which the primary molding transfer layer is adhered is held by the primary molding holes 17 or the holding pins 32 of the intermediate plate 19, the secondary molding cavity mold 15 and the secondary molding core mold 14 are provided. May be moved to between. The transfer sheet for primary molding may be moved by the intermediate plate 19 without peeling the base sheet 2. The primary molding resin portion 8 is formed by the intermediate plate 19 with the secondary molding cavity molds 15 and
While being moved to the position between the next molding core mold 14 and 2
The secondary molding painting sheet 7 may be arranged between the secondary molding cavity mold and the intermediate plate 19. A transfer sheet for secondary molding may be used as the painting sheet 7 for secondary molding. The movement of the intermediate plate 19 may be achieved by rotating the intermediate plate with a drive source and a shaft, or by sliding a slide plate. To stop the rotation of the intermediate plate at a predetermined position, it may be mechanically performed by friction or the like,
It may be performed electrically by electromagnetic force or the like. Before or after the movement of the intermediate plate, or at the same time, a painting sheet for secondary molding may be arranged between the cavity mold for secondary molding and the intermediate plate. A transfer sheet for secondary molding may be used as a painting sheet for secondary molding. The primary molding tree is moved while the painting sheet for primary molding placed between the cavity mold for primary molding and the intermediate plate is adhered to the primary molding resin portion, and the secondary molding cavity mold is moved to the intermediate position. You may arrange | position the painting sheet for primary shaping | molding with a primary shaping | molding tree part between plates. In this case, as the painting sheet 1, a sheet in which the adhesive layer 4 is composed of a primary adhesive portion that adheres to the primary molding resin 8 and a secondary adhesive portion that adheres only to the secondary molding resin 9 is used. Can be. The arrangement method is as follows: the painting sheet feeding device 2 located above the secondary mold cavity mold
9, a secondary molding painting sheet for a certain length is sent out before the secondary molding cavity mold, and is wound by the painting sheet winding device 30 located at the lower part of the secondary molding cavity mold. A method of cutting the painting sheet 7 for secondary molding at the upper part of the cavity mold 15 for secondary molding,
The same applies to the case where the painting sheet for primary molding is arranged in the cavity mold for primary molding.

Next, the primary molding cavity molds 12 and 2 are sandwiched by an intermediate plate holding the primary molding resin portion 8 therebetween.
Next, the mold core 14 is clamped. When the secondary molding hole 18 of the intermediate plate 19 is used as the primary molding resin portion holding means, the surface of the secondary molding cavity mold 15 is
A secondary molding space including the inner surface of the secondary molding hole 18 of the intermediate plate 19 and the surface of the secondary molding core mold 14 is formed. The intermediate plate 1 is used as a primary molded resin portion holding means.
When using the holding pin 32 on the intermediate plate 19, the intermediate plate 19
When the secondary molding hole 18 is not used, a secondary molding space including the surface of the secondary molding cavity mold 15 and the surface of the secondary molding core mold 14 can be formed. The secondary molding resin 23 is injected into the secondary molding space to perform secondary molding to obtain the secondary molding resin portion 9. The mold clamping may be performed by pushing the movable platen 24 forward by the drive source 25 and the shaft 27. Intermediate plates 19 and 2 holding the primary molded resin part 8 by closing the mold
The secondary molding painting sheet 7 is sandwiched between the secondary molding cavity mold 15 (FIG. 4). The contact between the cavity mold 15 for secondary molding and the intermediate plate 19 is performed first,
When the contact between 9 and the secondary molding core mold 14 is to be performed later,
The shaft of the intermediate plate 19 may be pulled into the movable mold. 2
By injection of the secondary molding resin 23, the secondary molding resin parts 9 and 2
The adhesive layer 4 of the next forming painting sheet 7 adheres (FIG. 4). In addition, the injection of the secondary molding resin 23 causes the primary molding resin portion 8 and the secondary molding resin portion 9 to adhere to each other to be integrated.
When a transfer sheet for secondary molding is used as the painting sheet 7 for secondary molding, the adhesive layer of the transfer sheet for secondary molding and the secondary molding resin portion 9 are adhered to each other. When the adhesive layer 4 of the transfer sheet for the primary molding is formed to be larger than the primary molding resin portion 8, the primary bonding in which the adhesive layer 4 adheres to the primary molding resin 8 as the painting sheet 1. And a secondary bonding portion that is bonded only to the secondary molding resin 9, and the secondary bonding portion of the adhesive layer 4 of the painting sheet for primary molding 6 is attached to the secondary molding resin portion 9. You may make it adhere. The bonding means that the secondary molding resin 23 in a molten state is cooled and solidified in a state where it is in contact with the adhesive layer 4 of the secondary molding painting sheet 7 to form the secondary molding resin portion 9 and the primary molding resin. Part 8 and adhesive layer 4
And stick together. When a transfer sheet for secondary molding is used, the base sheet 2 of the transfer sheet for secondary molding is peeled off after the adhesive layer of the transfer sheet and the secondary resin part 10 are bonded. In the secondary molding, when the adhesive layer of the primary molding transfer sheet and the secondary molding resin portion 9 adhere to each other, the base sheet 2 of the primary molding transfer sheet may be peeled off. The injection of the secondary molding resin 23 is performed by the injection unit 2
This is performed by flowing the molding resin into the secondary molding resin injection nozzle 13 and the secondary molding resin injection path 13 by the injection mechanism 1.

Next, the secondary molding cavity mold 15 and the secondary molding core mold 14 are opened to take out the two-color molded simultaneous painting product. 2 obtained by the manufacturing method of the present invention
As the color molding simultaneous painting product, a primary molding painting sheet 6 (insert sheet) or 1
The secondary molding transfer layer is adhered, and the secondary molding resin portion 9 is adhered to the secondary molding painting sheet 7 (insert sheet) or the secondary molding transfer layer. Or, a primary molding painting sheet 6 (insert sheet) or a primary molding transfer layer adheres to the primary molding resin portion 8, and neither the painting sheet nor the transfer layer adheres to the secondary molding resin portion 9. There is. Alternatively, the primary molding painting sheet 6 (insert sheet) or the primary molding transfer layer does not adhere to the primary molding resin portion 8, and the secondary molding painting sheet 7 or There is one in which a transfer layer for secondary molding is adhered. Alternatively, the primary molding painting sheet 6 (insert sheet) or the primary molding transfer layer is adhered to the primary molding resin portion 8, and the primary molding painting sheet 6 (insert Sheet) or one in which only a part of the transfer layer for primary molding is adhered. Alternatively, the primary molding painting sheet 6 (insert sheet) or the primary molding transfer layer is adhered to the primary molding resin portion 8, and the primary molding painting sheet 6 (insert sheet) is attached to the secondary molding resin portion 9. ) Or a part of the transfer layer for primary molding is adhered, and the resin sheet 9 for secondary molding is attached with a painting sheet 7 for secondary molding (insert sheet) or a transfer layer for secondary molding. There is. Alternatively, the primary molding painting sheet 6 (insert sheet) is adhered to the primary molding resin portion 8 and the secondary molding resin portion 9
In some cases, a transfer layer for secondary molding is adhered. Also, 1
In some cases, the secondary molding resin portion 8 and the secondary molding resin portion 9 do not join.

[0023]

According to the apparatus for manufacturing a simultaneously painted two-color article and the method for producing a simultaneously painted two-color article according to the present invention, it is possible to efficiently obtain a molded article of a different material excellent in design expression.

According to the method of manufacturing a two-color molded simultaneous painting product of the present invention, for example, a button made of a thermoplastic elastomer resin is provided in an audio panel made of ABS resin, and both of the resins are multicolored and beautiful. A design can be obtained. Further, since the primary molded resin part and the secondary molded resin part are continuously obtained, the following effects are obtained. 1. Since the secondary molding can be performed before the primary molding resin portion undergoes shrinkage distortion, it can be easily inserted into a mold. 2. Since the secondary molded resin part is molded before the primary molded resin part cools, the adhesion between the primary molded resin part and the secondary molded resin part is good. 3. Painting can be performed on both the primary molding resin part and the secondary molding resin part, and the positioning of the pattern is accurate. 4. The cost is low because the processes are not separated.

In the method of manufacturing a two-color molded simultaneous painting product of the present invention, the intermediate plate is moved, so that the mold itself is not moved to move the primary molding resin portion to the secondary molding portion. You may. Further, there is no need to rotate or slide a cavity mold in which a heavy-weight device such as a painting sheet feeding device and a painting sheet winding device is installed. Therefore, the production cost is low and the productivity is excellent. Further, an expensive driving unit having a large driving force is not required, and the structures of the driving unit and the device on the cavity mold side are not complicated and the cost is low, and the production cost is low and the productivity is excellent.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one process of a two-color simultaneous painting product manufacturing method and a two-color simultaneous simultaneous painting product manufacturing method of the present invention.

FIG. 2 is a cross-sectional view showing one step of the two-color simultaneous simultaneous painting product manufacturing apparatus and the two-color simultaneous simultaneous painting product manufacturing method of the present invention.

FIG. 3 is a cross-sectional view showing one process of the two-color simultaneous simultaneous painting production apparatus and the two-color simultaneous simultaneous painting production method of the present invention.

FIG. 4 is a cross-sectional view showing one process of the two-color molded simultaneous painting product manufacturing apparatus and the two-color molded simultaneous painting product manufacturing method of the present invention.

FIG. 5 is a cross-sectional view showing an example of a two-color molded simultaneous painting product manufactured by the two-color molded simultaneous painting product manufacturing method of the present invention.

FIG. 6 is a cross-sectional view showing an example of a painting sheet used in the two-color molding simultaneous painting product manufacturing method of the present invention.

FIG. 7 is a cross-sectional view showing an example of a painting sheet used in the two-color molding simultaneous painting product manufacturing method of the present invention.

FIG. 8 is a cross-sectional view showing an example of the two-color molding simultaneous painting product manufacturing apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Painting sheet 2 Base sheet 3 Picture layer 4 Adhesive layer 5 Release layer 6 Primary molding painting sheet 7 Secondary molding painting sheet 8 Primary molding resin part 9 Secondary molding resin part 10 Primary molding resin injection Road 11 Primary molding core mold 12 Primary molding cavity mold 13 Secondary molding resin injection path 14 Secondary molding core mold 15 Secondary molding cavity mold 16 Painting sheet supply means 17 Primary molding hole 18 2 Next molding hole 19 Intermediate plate 20 Fixed plate 21 Injection unit 22 Primary molding resin 23 Secondary molding resin 24 Movable plate 25 Drive source 26 Tie bar 27 Shaft 28 Nozzle hole 29 Painting sheet feeding device 30 Painting sheet winding device 31 Support rod 32 Holding pin

Claims (4)

[Claims] 1. A primary molding means comprising a primary molding core mold having a primary molding resin injection path and a primary molding cavity mold, and a secondary molding core mold having a secondary molding resin injection path. In a two-color molding simultaneous painting product manufacturing apparatus having a secondary molding means comprising a secondary molding cavity mold and a painting sheet supply means, an intermediate plate having a primary molding resin part holding means is provided with a primary molding. A painting sheet supply means movably provided between a position between the core mold for molding and the cavity mold for primary molding and a position between the core mold for secondary molding and the cavity mold for secondary molding. Wherein a painting sheet can be supplied between the intermediate plate and the cavity mold of at least one of the primary molding means and the secondary molding means. 2. A two-color molding simultaneous painting product manufacturing apparatus according to claim 1 and a painting sheet are prepared, and first, a primary molding cavity mold and a primary molding core mold with an intermediate plate interposed therebetween. After the mold has been clamped, primary molding is performed to obtain a primary molded resin portion held by the primary molded resin portion holding means.
After being moved to a position between the secondary molding core mold and the intermediate molding plate holding the primary molding resin part, the secondary molding cavity mold and the secondary molding core mold are clamped. 2
The primary molding resin part and the secondary molding resin part are integrated by obtaining the secondary molding resin part by performing the secondary molding, and at least one of the primary molding resin part and the secondary molding resin part is formed. A method for producing a two-color molded article having a painting sheet adhered thereto, wherein the two-color molded article is provided between a primary molding cavity mold and an intermediate plate or between a secondary molding cavity mold and an intermediate plate. And / or at least one of the above two methods, wherein a painting sheet is arranged before clamping. 3. The two colors according to claim 2, wherein a part of the adhesive layer of the painting sheet disposed between the primary molding cavity mold and the intermediate plate adheres to the secondary molding resin part in the secondary molding. Simultaneous molding product manufacturing method. 4. A painting sheet in which at least a picture layer and an adhesive layer are laminated on a base sheet and the base sheet is peelable, and the base sheet is peeled off at least one of after primary molding and secondary molding. The method for producing a two-color molded simultaneous painted product according to claim 2 or 3.