JPH08281704A - Manufacture of composite resin molding and mold for molding resin - Google Patents

Abstract

PURPOSE: To provide a method for simply and efficiently manufacturing a composite resin molding having excellent external appearance and a mold used therefor. CONSTITUTION: A mold 5 which has a cavity mold and a core mold in which a first space K1 for injection compression molding, a second space KK2 for injection molding and a throttle space can be formed is used. The mold 5 is opened, a skin material (h) with a foamed layer is disposed at the space K1 side, thermoplastic resin is cast and disposed, a first mold clamping force is applied to the mold 5, and a skin part 1 is injection compression molded in the first space. Then, a second mold clamping force larger than the first force is applied to the mold 5 while controlling the compression fore applied to the space K1 to a range not exceeding the first force. Thereafter, the resin directed toward the second space is injection cast to injection mold a non-skin part and a coupling part. The mold used for the method is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a composite type resin molded product and a resin molding die apparatus (hereinafter referred to as "die apparatus"). More specifically, the present invention relates to a method for easily and efficiently manufacturing a composite-type resin molded article having an excellent appearance and a mold apparatus used for the method.

[0002]

2. Description of the Related Art In recent years, resin molded articles, which are partially provided with a skin portion having a foam layer (polyurethane foam, polypropylene foam, etc.), are often used for interior parts of automobiles. In such a composite type resin molded product, as illustrated in FIGS. 17 and 18, a portion (hereinafter, referred to as “skin having skin”) 81 having a skin portion 811 and a base material portion 812, and a skin portion. A portion not provided (hereinafter, referred to as “non-skin portion”) 82 and an unprepared portion 82 are respectively manufactured using separate mold devices, and in a later step, both are secured by using a locking component such as a screw screw stopper. It is generally assembled.

[0003]

As described above, in this type of resin molded product, since it is necessary to separately prepare the covered skin portion 81 and the non-covered skin portion 82, there is a problem that the manufacturing process becomes long. Have In addition, the assembly work of both requires a certain amount of work, which results in low manufacturing efficiency and high manufacturing cost. Therefore, the appearance of a method for producing such a resin molded product easily, efficiently, and at low cost, and a mold apparatus and the like used for the method have been desired.

The present invention has been made in view of the above points of view, and it is an object of the present invention to provide a method for easily and efficiently manufacturing a composite type resin molded article having an excellent appearance, and a mold apparatus used for the method. To aim.

[0005]

Means for Solving the Problems The present inventor has conducted extensive studies to solve the above problems. As a result, if the skin material to be the skin portion 811 is set in advance in the molding space of the injection molding die, the base material portion 812 and the non-skin portion 82 are integrally molded by an injection molding method. I thought that the above problems could be solved. Further, if the same skin material is set in a mold for injection compression molding and then the base material portion 812 and the non-skin portion 82 are integrally molded by the injection compression molding method, the above problem may be solved. I originally thought.

However, in the above case, the resin raw material (for example, in the case of polypropylene, 200 to 2 in the case of polypropylene, which is heated to a high temperature, is heated in the molding space of the mold which is clamped.
40 ° C is the prescribed injection pressure (500 to 1500 kgf /
under about ² cm2). Therefore, the foam layer 811b of the skin material may be melted and crushed by the heat of the resin material and the injection pressure. Therefore, in the above case, it is difficult to integrally form a molded product of satisfactory quality.

On the other hand, in the above case, for example, FIG.
As shown in (a), when the die 86 is opened by a predetermined amount (for example, the clearance indicated by the symbol X in the figure is 10 to 50 mm), the cavity 861 or the core 86 is opened.
The resin raw material 89 in a molten state is injected and arranged at a predetermined position of 2. Further, as shown in FIG. 2B, the raw material 89 is shaped by pressing and pressurizing the raw material 89 while uniformly flowing (filling) the raw material 89 in the molding space of the mold. . Then, in this method, when the mold 86 is opened by a predetermined amount,
Since the raw material resin 89 is disposed by injection, the resin 89 hits the foam layer 811b in a state where the injection pressure and heat at the time of injection are relaxed. Therefore, in this case, the problem of the foam layer 811b, which is a problem in the above case, is unlikely to occur.

On the other hand, in this case, the resin raw material 8
Since 9 (particularly, the surface side thereof) is shaped in a cold state to some extent, it is easy to cause a defect in appearance in a portion of the molded product corresponding to the non-skin portion 82. That is, in this case, as shown in FIG. 20, substantially ring-shaped patterns (flow marks) 871 to 874 are likely to be formed in the molding space near the injection gate of the resin raw material 89. Further, when the resin raw material 89 is supplied from the plurality of injection gates into the same molding space, a seam (weld line) 88 is formed at a position where the resin raw materials supplied from different gates collide.
1, 882 is likely to occur. And these patterns 871
874 and seams 881 and 882, the non-skin portion 82
(871, 881 and the like) easily deteriorate the appearance of the molded product. Therefore, even in the above case, it is difficult to integrally mold a molded product having a satisfactory quality.

Under these circumstances, the present inventor has conducted further research and is used for a method for producing a composite resin molded article that does not cause the above-mentioned problems found in integral molding, and for producing such a molded article. Proposals for a mold device were made (Japanese Patent Application Nos. 6-248821 and 6-24882).
2). In these proposals, when manufacturing a composite type resin molded product, as shown in FIG. 21, a first space 951 for injection compression molding, a second space 952 for injection molding, and a throttle space that connects these spaces. 953 and a mold device capable of forming (mold)
95 is used. Then, first, the mold 95 is opened, the skin material 911 is set on the first space 951 side, and then the resin raw material 991 is injected and arranged, or after the injection and arrangement, the mold 95 is closed. To Then, by the action of the mold clamping force applied to the mold 95 (hereinafter, referred to as “mold clamping force P”), the resin raw material 991 is tentatively caused to flow in the first space 951 to form the covered skin portion 91.

Subsequently, the mold 9 to which the mold clamping force P is applied
5 toward the second space 952, the same resin raw material 992
Is injected. The resin material 992 fills the second space 952 and the throttle space 953 to form the non-skin portion 92 and the connecting portion 93. And these suggestions are
An attempt is made to easily and efficiently manufacture a composite resin molded product in which the surface skin portion 91 and the non-skin portion 92 are integrated with the connecting portion 93 interposed therebetween without causing the problems in the above case. It is a thing.

However, the present inventor did not stop at this proposal, but conducted further research. As a result, they have found that it is useful to further improve the above proposal in the following cases. That is, the mold clamping force (hereinafter, referred to as “the mold clamping force”) required for performing appropriate injection compression molding in the first space 951.
Referred to as "the first mold clamping force P _1". ) And the second space 952
The mold clamping force (hereinafter, referred to as “second mold clamping force P ₂ ”) required for performing appropriate injection molding in the above case does not always match. This means that the mold clamping forces P ₁ and P ₂ are
1, 952 is proportional to the projected area of the mold 9 on a plane orthogonal to the opening / closing direction (hereinafter, simply referred to as “projected area”), and the size of each projected area depends on the specifications of the target molded product. This is because various selections are made according to the requirements.

Therefore, the mold clamping force P is generally set to a higher value of the first mold clamping force P ₁ and the second mold clamping force P ₂ . If the mold clamping force applied to the first space 951 is insufficient, the resin raw material 991 is removed from the first space 95.
It becomes difficult to make the fluid flow sufficiently within 1, and problems such as a so-called "short shot" state and an excessively large plate thickness of the product are likely to occur. Further, if the mold clamping force applied to the second space 952 is insufficient, the mold closed state of the mold 95 loosens due to the injection pressure at the time of injection molding. As a result, the resin raw material 992 may leak to the parting surface of the mold 95, which may cause “burr” in the final product. Therefore, when the second mold clamping force P ₂ is larger,
The mold 95 is clamped on the basis of the second mold clamping force P _2, and an excessively slight compression force (mold clamping force) is applied to the first space 951.

As a result, as shown in FIG. 22 (a), the foam layer 911b of the skin material 911 is significantly crushed, and the cushioning feeling which the covered skin portion 91 should originally have cannot be obtained in many cases. . This crushing is caused by increasing the mold clamping force P and by impregnating the foamed layer 911b with the resin raw material 9
It is considered that this is because the amount of 91 increases. Further, as shown in FIG. 23, when there is a thick portion such as a mounting boss or a rib on the base material portion 912 of the surface skin portion 91, “thickness” may occur in this thick portion. "Sink" like this
As shown in FIG. 22B, if the foam layer 911b is slightly crushed and the foam layer 911b has a sufficient wall thickness, FIG.
It can be absorbed as shown in (a). On the other hand, FIG.
When the crushing as shown in (a) occurs and the thickness of the foamed layer 911b becomes small, as shown in FIG. 23 (b), it is difficult to absorb the “sink” and the appearance of the final product is deteriorated. Become.

Therefore, the inventor of the present invention can easily and efficiently produce a composite resin molded product having an excellent appearance regardless of the magnitude of the first mold clamping force P ₁ and the second mold clamping force P _2. The present invention has been completed through intensive research on the manufacturing method and the like.

That is, the manufacturing method of the composite type resin molded product (hereinafter referred to as "molded product") of the first invention is the first space for injection compression molding, the second space for injection molding, After opening a mold provided with a cavity mold and a core mold capable of forming a first space and one or more throttle spaces communicating with the second space, the cavity or the first space of the core mold. Side, a predetermined skin material with a foam layer is arranged, and then, while the predetermined thermoplastic resin is injected and arranged on the first space side, or after the injection and arrangement, a first mold clamping force is applied to the mold. By performing the first mold clamping operation to be applied, the thermoplastic resin is substantially filled in the first space, and the skin-covered portion is injection-compressed and molded in the first space, and then the compressive force applied to the first space. The first mold clamping force with respect to the mold while controlling the pressure within a range not exceeding the first mold clamping force. After performing a second mold clamping operation that applies a large second mold clamping force, a predetermined thermoplastic resin is injected and injected into the second space, and the second resin and the throttle space are filled with the thermoplastic resin. By filling the inside of the second space with an injection molding of a non-skin portion, and in the drawing space, an injection molding of a connecting portion that is hung between the non-skin portion and the skin-containing portion. And

The "throttle space" is for preventing the "thermoplastic resin injected and arranged on the first space side (hereinafter, referred to as" first raw material ")" from passing through. The form of this space is not particularly limited as long as this action is provided. For example,
As shown in FIG. 6, a space K ₃ having a cross-sectional shape that is shallow in the opening / closing direction of the mold (hereinafter referred to as “vertical direction”) and narrowed in that direction can be illustrated. Further, it may have a cross-sectional shape narrowed in a direction substantially perpendicular to the vertical direction (hereinafter, referred to as “lateral direction”). Furthermore, as shown in FIG.
Vertically squeezed part K ₃₆₁ and laterally squeezed part K
_The space K ₃₆ in which ₃₆₂ and K ₃₆₃ are mixed may be used.
Note that the direction in which the space is narrowed (hereinafter referred to as the “throttle direction”) is not limited to the vertical direction and the horizontal direction exemplified here, and can be variously selected within the range that can achieve the object of the present invention.

Further, as shown in the fourth aspect of the present invention, the space width along the drawing direction of the drawing space at the time of the first mold clamping operation is
It is preferably 0.5 to 3.0 mm. If there is a portion where this value is less than 0.5 mm, the connecting portion formed in the aperture space may have insufficient strength. On the other hand, if this value exceeds 3.0 mm, the above-mentioned "prevention of passing through"
This is because there is a possibility that the Also,
The diaphragm space does not necessarily have to be a single space, and a plurality of diaphragm spaces may be arranged between one "first space" and one "second space". For example, as shown in FIG. 13 (a), even if a plurality of diaphragm spaces K ₃₁ and K ₃₂ narrowed down in the vertical direction are stretched in a strip shape in both spaces, as shown in FIG. 14 (a). Alternatively, a plurality of laterally restricted diaphragm spaces K ₃₃ and K ₃₄ may be stretched in a strip shape in both molding spaces. Furthermore, spaces narrowed down in different directions (for example, the vertical direction and the horizontal direction) may be mixed. Further, two or more sets of molding spaces configured by the first space, the second space and the like may be provided to produce two or more molded products at one time. Further, the first and second spaces forming one molding space do not have to be single.

The above-mentioned "first mold clamping force" is a mold clamping force that is sufficient to perform proper injection compression molding in the first space. For example, in the projected area (cm ² ) of the first space, 5
A value obtained by applying any pressure of 0 to 100 kgf / cm ² can be exemplified. Further, the “second mold clamping force” is a mold clamping force sufficient to maintain the mold closed state of the mold against the injection pressure when performing the injection molding in the second space. . For example, in the projected area (cm ² ) of the second space, 250
A value obtained by applying any pressure of 400 kgf / cm ² or a value larger than this value can be exemplified.

The second aspect of the present invention can be exemplified as a specific method for carrying out the "first and second mold clamping operations".
In the present invention, the slide portion that can be retracted is moved forward so that at least one of the cavity mold and the core mold forming the first space is moved away from the first space along the opening / closing direction of the mold. It is fixedly arranged at the end. In addition, the first mold clamping operation is performed while the slide portion is fixedly arranged at the forward end and a predetermined unpressurized gap exists between the parting surfaces of the cavity mold and the core mold. The second mold clamping operation is performed by abutting each of the parting surfaces while retracting the slide portion at least by a distance corresponding to the gap left unpressed.

That is, at the time of the first mold clamping operation, there is a so-called "unpressed portion" in which a predetermined gap exists between each of the parting surfaces.
Is applied, the first mold clamping force is applied. On the other hand, during the second mold clamping operation, a second mold clamping force larger than the first mold clamping force is applied in a so-called "pushed-down" state where the parting surfaces are abutted against each other. Moreover, at the time of this second mold clamping operation, the slide portion is retracted, and the pressure applied to the first space can be suppressed to the first mold clamping force or less. It should be noted that the size of the “unpressed gap” is the first necessary for the first mold clamping operation.
It is determined within a range in which a mold clamping force can be applied and the mold matching surfaces (cutting parts) of the cavity mold and the core mold on the first space side can be abutted against each other. Further, it is desirable to determine it in consideration of the fluidity of the first raw material, the pouring amount, the thickness of the foam layer of the skin material used, the expansion ratio, and the like.

As the "first raw material" and the "thermoplastic resin injected and injected into the second space (hereinafter referred to as" second raw material ")", the same resin is usually used.
However, the object of the present invention can be sufficiently achieved even if a predetermined same kind or different kinds of resins are used. An example of the combination of the “same type” of resin is a case where one is polypropylene (polyethylene) having a high degree of polymerization and the other is polypropylene (polyethylene) having a low degree of polymerization. Moreover, the case where one is modified polypropylene (polyethylene) and the other is unmodified polypropylene (polyethylene) can be exemplified. Further, when the above "different" resins are used, it is preferable to select resins having compatibility with each other in order to sufficiently secure the integrity of the molded product. For example, when one is ABS and the other is polystyrene, when one is polyethylene and the other is polypropylene,
An example is the case where one is polyethylene and the other is polyisobutylene. Further, as these resins, it is particularly preferable to select those having high fluidity such as polypropylene (including talc) and ABS.

Further, as shown in the third aspect of the present invention, the cavity mold and the core mold have the first space, the second space and the diaphragm space, and the first space near the diaphragm spaces.
It is possible to form a continuous auxiliary space without being brought into a narrowed state with the space, and the amount of the first raw material is from the amount of filling only the first space to the amount of filling the first space and the auxiliary space. It has a range. In this case, the objects of the above inventions can be achieved more easily and reliably.

Further, as shown in the fifth aspect of the present invention, the interval between the parting surfaces of the cavity mold and the core mold is 10 when the first raw material is injected into the first space.
It is preferable to set it to ˜50 mm. This distance is 10m
When it is less than m, the base material portion of the skin portion is in a state of being produced by an injection molding method, and the above-mentioned "defective foam layer" is likely to occur. On the other hand, if this interval exceeds 50 mm, it will take time from the resin pouring arrangement to the mold clamping / pressurizing. Then, the portion of the resin that is initially placed in the space and is in contact with the mold surface is deprived of heat without being sufficiently pressurized, so that a short shot is likely to occur.

It is necessary that the "skin material with a foam layer" is arranged on the first space side of the cavity mold or the core mold when the mold device is in an open state. Examples of the "skin layer" that constitutes the design surface of the skin material include a woven fabric, a non-woven fabric, a thermoplastic resin such as PVC, ABS, TPO, or a sheet or film of a thermoplastic elastomer. The material of the "foam layer" is P
P, PU, PVC etc. can be illustrated. The "first raw material", that is, the resin forming the base material portion, is made of the same material as the foamed layer, or can be reliably bonded to the foamed layer by the anchor effect. Is desirable.

The mold apparatus according to the sixth aspect of the present invention includes a mold having the same cavity type and core type as those of the second aspect of the present invention, and an injection arrangement for performing the injection arrangement of the first raw material when the mold is opened. Means, a mold clamping means for performing the first mold clamping operation and the second mold clamping operation similar to the second aspect of the invention together with or after the operation of the injection arranging means, and an injection for performing injection injection of the second raw material. Injection means. That is, it is a mold apparatus for carrying out the second invention. The seventh invention is a mold apparatus for carrying out the third invention and the eighth invention is the fourth invention.

[0026]

In the first to eighth inventions, the mold is used which is capable of forming the first space and the second space which communicate with each other with the diaphragm space interposed therebetween. Then, the base material part of the surface skin part is formed in the first space, the non-skin part is formed in the second space, and the connecting part for connecting them is formed in the drawing space. Therefore, it is not necessary to separately prepare the surface skin portion and the non-skin portion, and it is not necessary to assemble the both in a later step. As a result, it is possible to improve the manufacturing efficiency of the molded product and reduce the manufacturing cost.

Further, in each invention, the mold is opened, and the skin material with the foam layer is arranged at the position on the side of the first space. Next, while maintaining the mold open state, the first raw material is injected and arranged on the first space side, and at the same time as or after this, the first mold clamping force is applied to the mold. For this reason, this first mold clamping force is set to a size that is not excessive or insufficient in order to uniformly flow the first raw material in the first space, and an excessive compressive force is not applied to the first space. be able to. Therefore,
At the stage of this first mold clamping operation, it is possible to prevent the foam layer of the skin material from being impregnated with an excessive amount of the first raw material.

Further, what directly communicates with the first space is a throttle space which is throttled in a predetermined direction and which makes it difficult for viscous fluid to pass through. Moreover, as described above, if the compressive force applied to the first space is appropriate, the fluidity of the first raw material does not become higher than necessary. Therefore, if the amount of the first raw material fills the first space without excess or deficiency, it is difficult for the same raw material to enter the throttle space. It constitutes the base material portion. Even if this raw material slightly invades into the drawing space K ₃ , the invading raw material is hardened in this space (in particular, near the inlet),
Easy to stay. Then, the first raw material is hard to proceed further than the hardened / stopped portion. Furthermore, the base material part
Since it is formed by such an injection compression molding method, flow marks and weld lines are often generated as described above, but these are hidden by the skin portion and do not appear on the design surface.

Then, a second mold clamping force larger than the first mold clamping force is applied to the mold, and at this time, a compressive force exceeding the first mold clamping force is applied to the first space. Is controlled so that is not added. Therefore, even at the stage of the second mold clamping operation, it is possible to prevent excessive pressure from being applied to the first space. Therefore, even at this stage, it is possible to avoid impregnating the foam layer with the unnecessary first raw material. As a result, it becomes easy to give a desired cushioning feeling to the surface skin portion.
Further, even if there is a thick portion in the base material portion and a "sink" occurs in that portion, it can be concealed by the skin portion having a desired thickness secured.

Further, after the formation of the skin layer, the second raw material is injected and injected into the second space. The second raw material flows vigorously in the second space to substantially fill the space and also to fill the throttle space. And the 2nd raw material with which the 2nd space was filled up serves as a non-skin part, and the 2nd raw material with which the throttle space was filled up serves as a connection part. Since the non-skin portion is formed by the injection molding method as described above, flow marks and weld lines that would significantly impair the appearance of the non-skin portion are not formed.

Further, in the third and seventh aspects of the invention, a mold having an auxiliary space which is continuous with the first space without being in a throttled state is used near the diaphragm space. In this mold, the amount of the above-mentioned first raw material to be injected is large, and even if it is out of the first space, this raw material easily flows toward the auxiliary space into which it can easily flow. Therefore, if this injection arrangement amount is adjusted from the "amount for filling only the first space" to the "amount for filling the auxiliary space" as well, the intrusion of the first raw material into the throttle space is further ensured. Can be stopped. Further, if there is an unfilled portion of the first raw material in the auxiliary space, the second raw material is filled therein. In this case, the boundary between the second raw material and the first raw material exists in this auxiliary space. Therefore, even if this boundary becomes a weld line, it is difficult to appear as the appearance of the molded product.

[0032]

EXAMPLES The present invention will be specifically described below with reference to examples. In this example, a molded product A as shown in FIGS.
It is manufactured by using a mold device including the mold 5 shown in FIGS.

(1) Outline of Molded Article The above-mentioned molded article A is used as an instrument panel of an automobile, and includes a surface skin portion 1, a non-skin portion 2, a connecting portion 3, and a resin reservoir portion 4. Of these, the above-mentioned surface skin part 1 comprises a skin material part 11 with a foam layer and a base material part 12 made of polypropylene. The skin portion 11 includes a skin layer 11a made of polyvinyl chloride and a foam layer 11b made of polypropylene foam. Further, the non-skin portion 2, the connecting portion 3 and the resin reservoir portion 4 are made of polypropylene.

(2) Outline of Mold Device As shown in FIG. 3 etc., the mold device of this embodiment has a movable mounting plate 511, a fixed mounting plate 512, and a cavity mold 521.
, Core mold 522, and first hot runner nozzle 61
And a second hot runner nozzle 62.
The movable mounting plate 511 and the fixed mounting plate 512 are arranged so as to face each other with a predetermined gap.

The cavity mold 521 has a movable mounting plate 5
11 is attached to the lower surface side of the contact surface 52 for contacting the molded product.
The projection T is provided at the approximate center of 1f. Further, a main body portion 521a having a sliding groove M ₁ opening in the direction of the core die 521 in the region on the left side with the protrusion T interposed therebetween.
And a slide portion 521b that slides in the sliding groove M ₁ .
Positioning means 58 for positioning the slide portion 521b.

The positioning means 58 is provided with the sliding groove M ₁
And a spring 581 hung between the bottoms of the slide portion 521b and the slide groove M ₁ near the bottom.
A pair of movable blocks 582a that slide in the horizontal direction,
582b and a pair of hydraulic cylinders 583a and 583b for moving the movable blocks 582a and 582b. The spring 581 acts in a direction to pull up the slide portion 521b. The positioning of the slide portion 521b is performed by bringing the bottom portion of the slide portion 521b biased upward in this way into contact with the movable blocks 582a and 582b.

Specifically, as shown in FIG. 3, when the hydraulic cylinders 583a and 583b are moved to the front dead center and the movable blocks 582a and 582b are brought close to each other, the slide portion 521b is moved to the forward end. Moving. At this time, the lower surface 521b ₁ of the slide portion 521b and the parting surface of the cavity mold 521 are substantially flush with each other. On the other hand, as shown in FIG.
83b is moved to the rear dead center and each movable block 582a,
When the 582b are separated from each other, the slide portion 521b moves to the backward movement end. The structure, method, etc. of the positioning means 58 are not limited to those shown in this embodiment. For example, the same one as the interlock mechanism I described later may be used.

The core mold 522 is arranged on the upper surface side of the fixed mounting plate 512. Then, in the region on the right side thereof, the sliding groove M ₂ opening toward the cavity mold 521 is formed.
Is provided with a fixed part 522a that is provided, and a movable portion 522b which slides within the sliding Domizo M _2, a. Also,
In the portion of the fixed portion 522a near the sliding groove M ₂ ,
A step D is provided. Further, a ring turn pin 522c protruding toward the cavity mold 521 is arranged on the left end side of the movable portion 522b. Further, the movable portion 522b has a spring S ₁ arranged on the lower surface side thereof,
From S _2, it is biased in the cavity mold 521 direction. However, as shown in FIG. 10 and the like, the locking shaft I ₁ of the interlock mechanism I arranged on the right side of the core mold 522 is provided with the locking groove 52 provided on the right side surface of the movable portion 522b.
By fitting in the 2d, the lower surface of the movable part 522b can be brought into contact with the bottom surface of the sliding groove M ₂ .

Further, as shown in FIG. 4 etc., the cavity mold 521 is brought close to the core mold 522 in the mold 5,
When the mold is closed by performing the second mold clamping operation shown in FIG. 10 and the like, the molding space K is formed inside. Then, as shown in FIG. 6, a portion sandwiched between the protruding portion T and the left end side of the movable portion 522b becomes a diaphragm space K ₃ . Further, on the left side of this space K ₃ , the first space K which is in a continuous state with each other is provided.
₁ and the auxiliary space ₄ are formed. Of these, the step D
The portion surrounded by the movable portion 522b is the auxiliary space K ₄ , and the remaining portion is the first space K ₁ . Further, a second space K ₂ is formed on the right side of the diaphragm space K ₃ . Incidentally, FIG.
As shown in FIG. 7, when the protrusion T is provided on the slide portion 521b, there are two stages of the first mold clamping operation (see FIG. 5 etc.) and the second mold clamping operation (see FIG. 10 etc.). The space width of the diaphragm space K ₃ along the diaphragm direction changes.

The first hot runner nozzle (injection arranging means) 61 is built in the core mold 522 on the left side, as shown in FIG. Then, the first raw material is injected and arranged from the front side first valve gate G ₁ to a predetermined portion of the region on the side of the first space K ₁ . Further, the second hot runner nozzle (injection injection means) 62 and the core mold 522 are incorporated in the rightward portion. Then, in order to inject and inject the second raw material (in this embodiment, the same resin raw material as the first raw material) from the front side second valve gate G ₂ into the second space K ₂ . belongs to.

Then, each hot runner nozzle 6 described above
Inside 1, 62, a piston L ₁ for adjusting the injection amount and injection time of each raw material at any timing,
L ₂ is arranged in a state where it can be moved backward by a predetermined hydraulic or pneumatic device. Note that the number of hot runner nozzles 61, 62 to be placed, the location of the hot runner nozzles 62, and the like are not limited to those shown in this embodiment, and various selections can be made according to the shape of the product.
Further, the rear sides of the respective means 61, 62 are connected to predetermined branched resin paths 631, 632, respectively.
The branched resin paths 631 and 632 correspond to the fixing portion 52.
At a predetermined position within 2a, outside the core mold 522,
It is connected to a nozzle (not shown) at the tip of the injection cylinder of the injection molding machine body.

In this apparatus, the same resin is supplied to the respective hot runner nozzles 61 and 62 from the same injection molding machine body in this way. However, the same, the same kind, or different kinds of resin raw materials having compatibility with each other may be supplied from different injection molding machine bodies to the respective hot runner nozzles 61 and 62. The apparatus may be of a vertical type or a horizontal type, and the core die 522 may be attached to the movable attachment plate 511 and the cavity die 521 may be attached to the fixed attachment plate 512.

(3) Manufacture of Molded Article In this example, the above-mentioned molded article A was manufactured by using the mold apparatus configured as described above according to the following steps (1) to (3). Step of Setting Skin Material First, as shown in FIG. 3, after the device is opened, the skin material h to be the skin portion 11 is attached to the cavity mold 521 on the first space K ₁ side. Place it so that it contacts the inner surface of. The mold opening amount (interval Y _{1 in} the figure) at this time is not particularly limited as long as the skin material h can be arranged. In addition, the slide portion 5 of the cavity mold 521
21b is in a state of being fixedly arranged at the forward end.

As the above-mentioned skin material h, a material which has been trimmed after being preformed by vacuum forming or the like was used. Further, in order to securely fix the skin material h, it is desirable to evacuate it by embedding an air-permeable metal (not shown) in the location where it is arranged. Furthermore, in this step, the locking shaft I ₁ is not fitted in the locking groove 522d, and the movable portion 522b of the core mold 522 is not the cavity mold 5
It is in a state of floating in the 21st direction.

First Material Injection Arrangement Step First, as shown in FIG. 4, the cavity mold 521 is brought close to the core mold 522, and the mold opening amount Y ₂ is 10 mm.
The cavity mold 521 is stopped when the distance reaches about 50 mm. Next, immediately after opening the first valve gate G ₁ , the injection cylinder is operated to operate the first space K.
_A predetermined amount of the first raw material (heat-melted polypropylene) is poured and placed in the inside of ₁ . Then, after the necessary amount of the first raw material is injected and arranged, the injection operation of the injection cylinder is temporarily stopped, and immediately after that, the first valve gate G ₁ is closed to set the injection arrangement of the first raw material. Stop.

In this step, the distance between the protrusion T and the left end of the movable portion 522b (hereinafter referred to as "aperture distance").
Say. ) That is, the space width of the diaphragm space K3 along the diaphragm direction is 0.5 to ₃ mm. In addition, the movable part 52
2b floats up toward the cavity mold 521 as in the previous step. However, in this step, the narrowing interval is prevented from widening by the abutment of the tip end side of the phosphorus turn pin 522c with the lower surface of the cavity mold 521.

First mold clamping step (molding step of the surface skin portion) As shown in FIG. 5, a first mold clamping force P ₁ is applied to the mold 5 by a predetermined mold clamping machine (not shown). Perform the first mold clamping operation. The first mold clamping force P ₁ is set within a range that is sufficient for flowing the first raw material in the first space K ₁ . In the present embodiment, this first mold clamping force P _{1 is applied} to the projected area (cm ² ) of the first space K ₁ by 50 to 100 kg.
The value is multiplied by / cm ² .

At this time, the mold 5 is not completely pressed down, and a "remaining pressing gap (about 0.5 to about 0.5-0.5 mm) is formed between the parting surfaces of the cavity mold 521 and the core mold 522.
1.5mm) "Y ₃ is present. However, even if such a "remaining gap of pushing" Y ₃ exists, the mold matching surfaces (vertical cut-outs) 521e and 522e existing at the left end of the first space K ₁ of the cavity mold 521 and the core mold 522 are firmly fixed. Is combined with. Moreover, the first mold clamping force P ₁ is appropriate and the fluidity of the first raw material is not higher than necessary.
Therefore, even if the mold 5 is not completely closed,
The first raw material does not overflow the mold 5. The value of the "remaining gap between the pushes" Y _{3 is} the magnitude of the first mold clamping force P ₁ , the fluidity of the first raw material, the injection arrangement amount, the valve gate G.
₁ number, the material of the foamed layer 11b of the skin material h, the thickness can be variously selected in consideration of the expansion ratio and the like.

Further, in accordance with the first mold clamping operation, the lower surface of the cavity mold 521 pushes the above-mentioned turn-out pin 522c toward the core mold 522. Then, the lower surface of the movable portion 522b is brought close to the bottom surface of the sliding groove M ₂ . At this time as well, similar to the above-mentioned “first raw material injecting and arranging step”, by the action of this turn-around pin 522c, the above-mentioned throttle interval is kept constant. That is, in the present embodiment, the movable portion 522
b is urged by the springs S ₁ and S _{2 so as} to be slidable in the groove M ₂ and the movable portion 522b is provided with the above-described ltern turn pin 522c. The above-mentioned squeezing interval after the raw material is injected is kept substantially constant.

Then, the first raw material flows accurately by the action of the first mold clamping force, and fills the first space K ₁ almost completely. At this time, since the first mold clamping force is appropriate, the amount of the first raw material impregnated into the foam layer 11b of the skin material h (11) can be suppressed to an appropriate amount. Further, if the injection amount of the first raw material is appropriate, it is difficult for the raw material to invade into the throttle space K ₃ , and further into the second space K ₂ . In particular, since the fluidity of the first raw material is not higher than necessary, it is even more difficult to enter the throttle space K _{3 and the} like.

Further, in this apparatus, the auxiliary space K ₄ is arranged in the vicinity of the diaphragm space K ₃ . This auxiliary space K
_As shown in FIG. 6, ₄ is continuous with the first space K ₁ without being restricted. Therefore, as shown in FIGS. 7B and 7C, even if the raw material overflows from the first space K ₁ , the raw material is stored in the auxiliary space K ₄ . Therefore, the amount of the first material, "amount to substantially fill even the auxiliary space K _4" in-drawing "amount to substantially fill the first space K _1" of Fig (a) (c)
If it is controlled during this period, it is possible to prevent this raw material from entering the throttle space K ₃ .

Even if the first raw material slightly penetrates into the throttle space K ₃ , the raw material is hardened near the inlet of the space K ₃ because the viscous fluid in the same space is difficult to pass through. And it is easy to stay. Then, the first raw material is less likely to proceed further than the hardened / stopped portion. Therefore, the second space K ₂ is not reached. This point is the same even when the auxiliary space K ₄ as described above is not arranged in the mold 5.

Furthermore, by adjusting the above-mentioned injection arrangement amount, the first
The boundary between the raw material and the second raw material supplied in the next step can be brought into the auxiliary space K ₄ (see, for example, FIG. 5).
W ₁ shown in (b) is the boundary. ). Therefore, even if this boundary becomes a weld line, it can be confined inside the molded product. Then, as shown in FIG. 5, the formation of the surface skin portion 1 and the resin reservoir portion 4 is completed in this step. In the case shown in FIGS. 7B and 7C, the molding of the resin reservoir portion 4 will be completed in the next step.

Incidentally, in response to a request for the form of the final product,
As shown in FIG. 7D, it may be necessary to make the inclination of the portion of the first space K ₁ close to the diaphragm space K ₃ gentle. In this case, the first raw material becomes slightly easier to flow to the throttle space K ₃ side than in the case shown in FIGS. Therefore, in such a case, as shown in FIG. 7D, it is more desirable to narrow the diaphragm spacing of the diaphragm space K ₃ or to provide an auxiliary space having a slightly larger cross-sectional area. It is preferable for sure achievement.

Second mold clamping step First, as shown in FIG. 8, the hydraulic cylinders 583a, 5b
83b is moved toward the rear dead center to move each movable block 5
82a and 582b are separated from each other. At this time, as shown in the figure, the sliding portion 521b is retracted upward by a distance Y ₄ represented by Y _4. This operation is the same as the first
It is desirable that the mold clamping force P ₁ be applied to the mold 5 for about 2 to 3 seconds after being continuously applied, that is, after the pressure is sufficiently held. Before that, if this operation is performed, the first raw material becomes the first
This is because there is a risk that the space K ₁ cannot be completely flowed.
Further, this operation is preferably performed after the first mold clamping force P _{1 applied} to the mold 5 is reduced to some extent. This is because if the pressure applied to each movable block 582a, 582b is lowered, the hydraulic cylinders 583a, 583b can be easily moved.

The retreat amount Y ₄ can be variously selected in consideration of the material, the thickness, the expansion ratio, etc. of the foam layer 11b of the skin material h, but is the same as the size of the above "remaining unpressurized gap" Y _3. It is desirable to set it to a degree or more. If the retreat amount Y _{4 is set} to be the gap Y ₃ or more, the width of the first space K ₁ in the opening / closing direction of the mold 5 does not become small when the mold 5 is closed. That is, as shown in FIG. 10, the size of the first space K _{1 when} the mold 5 is closed is not smaller than that in the case shown in FIG. Therefore, the compression force applied to the first space K ₁ is the same as the first mold clamping force P ₂ even if the second mold clamping force P _{2 having} a magnitude greater than or equal to the first mold clamping force P ₁ is applied to the mold 5. Power P
It will be suppressed to ₁ or less.

Further, as shown in FIG. 9, when the protrusion T is provided on the slide portion 521b side, the retreat amount Y
The width of the diaphragm space K ₃ can be widened according to ₄ . In this case, it is possible to increase the thickness of the connecting portion 3 formed in the space K ₃ and increase the strength of the connecting portion between the surface skin portion 1 and the non-skin portion 2. At this stage, since the molding of the skinned portion 1 has already been completed, the space width of the space K ₃ can be widened to the extent that it cannot be said to be in the “throttled” state.

Then, as shown in FIG.
21 and the parting surfaces of the core mold 522 are abutted against each other, and the lower surface of the movable portion 522b is brought into contact with the bottom surface of the sliding groove M ₂ . At this time, a second mold clamping force larger than the first mold clamping force is applied to the mold 5. However, as shown in the figure and above, since the slide portion 521b is in the retracted state, a compressive force larger than the first mold clamping force is not applied to the first space K ₁ . Therefore, also in this step, the foamed layer 11b of the skin material h is unlikely to have a defect.
In addition, this second mold clamping force P ₂ is
The size is set to such a degree that the mold closed state of the mold 5 can be sufficiently secured while countering the injection pressure generated in the second space K ₂ , or a size larger than that. In the present embodiment, the second
The mold clamping force P ₂ is _{2 in} the projected area (cm ² ) of the second space K 2.
The value is multiplied by 50 to 400 kg / cm ² .

Molding step of non-skin portion After the formation of the skin portion 1 as shown in FIG. 11, the second valve gate G ₂ is opened, and immediately after that, the injection cylinder is operated again, and the second A predetermined amount of the second raw material (the first raw material remaining in the injection cylinder) was injected and injected into the space K ₂ . Then, this raw material was vigorously filled in the second space K ₂ and the throttle space K ₃ . At this time, since the second mold clamping force P _{2 is applied} to the mold 5, there is no problem such as leakage of the second raw material from the parting surface of the mold 5.

Then, the non-skin portion 1 is formed in the second space K ₂ , and the connecting portion 3 is formed in the diaphragm space K ₃ . In the molded product A thus manufactured, as shown in FIG. 1, the covered skin portion 1 and the non-covered skin portion 2 are integrated via the connecting portion 3.

Mold Release Process The above-mentioned molded product A is taken out by opening the mold 5 when cooling is completed. At this time, the locking shaft I ₁ is fitted into the locking groove 522d, and the movable portion 522b.
Is firmly fixed. In this way, the movable part 522
If b is not fixed, the springs S ₁ and S ₂ tend to lift up toward the cavity mold 521 due to the urging force of the springs S ₁ and S ₂ . Then, if the mold is opened in such a state, only the non-skin portion 2 is likely to adhere to the cavity mold 521. Then, as shown in FIG. 12, after the mold opening of the mold 5 is completed, the molding product A is ejected by the ejection mechanism arranged in the core die 522. An example of this ejecting mechanism is one in which an ejecting pin (not shown) attached to a predetermined ejecting plate 7 is moved by a hydraulic or pneumatic cylinder (not shown).

Further, when the extrusion of the molded product A is completed, the hydraulic cylinders 583a and 583b are moved to the front dead center and the slide portion 521b is moved to the forward end. In addition, the locking shaft I ₁ is removed from the locking groove 522d,
As shown in FIG. 1, the movable part 522b is in a raised state. Then, by repeating the steps shown in (1) to (3) above, the molded product A can be continuously manufactured.

As described above, by using this apparatus, the molded product A in which the surface skin portion 1 and the non-skin portion 2 are integrated can be manufactured easily and quickly. In addition, the base material portion 12 of the surface skin portion 1
Is formed by an injection compression molding method, and the non-skin portion 2 is formed by an injection molding method. Furthermore, the first mold clamping force P ₁ required for forming the skin-containing portion ₁ and the second mold clamping force P ₂ required for forming the non-skin portion ₂
And are separately added to the mold 5. Moreover, the epidermis part 1
After the molding step of No. 1, a compressive force equal to or greater than the first mold clamping force P ₁ is not applied to the first space K ₁ . Therefore, the molded product A having an excellent appearance can be easily obtained.

The present invention is not limited to the specific examples described above, but various modifications may be made within the scope of the present invention depending on the purpose and application. That is,
In this embodiment, the slide portion 521b is replaced with the cavity mold 52.
However, it may be arranged in the core mold 522, or in both the cavity mold 521 and the core mold 522.
Similarly, the movable portion 522b may be arranged in the cavity mold 521 or the like. In addition, the movable portion 522b is connected to the slide portion 521.
Similar to b, it can be moved by a predetermined hydraulic pressure or a pneumatic cylinder. In this case, the cylinder and the movable portion 522b can be moved in synchronization with the opening / closing operation of the mold 5.

Further, in this embodiment, the protrusion T for forming the aperture space K ₃ is provided in the cavity mold 521, but even if it is provided in the core mold 522, it is divided into both molds 521 and 522. May be provided. Further, the aperture space K
₃ of the arrangement number, arrangement method, forms and the like is not particularly limited as far as it can achieve the object of the present invention. For example, in FIG.
(A) As shown in FIG. 14 (a), a plurality of aperture spaces K ₃₁ , K ₃₂ (K ₃₃ , K ₃₄ ) narrowed in a predetermined direction may be provided. In this case, as shown in FIG. 2B, the skin-covered portion and the non-skin-covered portion 2r (2s) are connected to a plurality of connecting portions 31q and 3q.
It will be integrated by 2q (31r to 33r).
Also, between these connecting parts [between 31q and 32q, etc.]
A predetermined communication hole [36q (36r, 37r)] will be formed in this.

Further, as shown in FIG. 15A, one aperture space K ₃₆ is composed of a portion K ₃₆₁ narrowed in one direction and portions K ₃₆₂ , K ₃₆₃ narrowed in the other direction. You can also In this case, as shown in (b) of the same figure, one connecting portion 36s has portions 361s and 362 narrowed in different directions.
s to 364 s. Further, the connecting portions 31r to 33r shown in FIG.
Portions 362s to 364 of the connecting portion 36s as shown in (b).
s can exhibit a function as a reinforcing rib that enhances the rigidity of the connecting portions 31r to 33r and 36s.

The number of the spaces K _{1 to} K ₄ to be arranged, the arrangement method, and the like can be variously selected according to the specifications of the molded product.
Therefore, as shown in FIG. 16 (a), the epidermis portions 1m ₁ and 1m ₂ are arranged on both sides of the non-epidermis portion 2m, and as shown in FIG. Epidermis 2n ₁ and 2n
_Two can be arranged. Further, a molded product in which a large number of skin-covered parts and non-skin-covered parts are alternately arranged, and a skin-covered part (non-skin-covered part)
It is also possible to surround the area with a non-epidermal part (epidermal part). Further, as shown in FIG. 7C, a so-called "protruding portion" 15u may be provided near one end of the skin-covered portion 1u. However, since this "protruding portion" often has a slightly inferior appearance, it is used as a functional surface (a surface that does not appear as an external appearance like a design surface at the time of mounting and is exclusively involved in joining with other members). preferable. Furthermore, the present apparatus can be used when producing parts (such as building materials) other than interior parts for automobiles.

[0068]

As described above, in each of the above inventions, a molded product in which the surface skin portion and the non-skin portion are integrated can be manufactured easily and quickly. Further, the base material layer of the skin portion is formed by the injection compression molding method, and the non-skin portion is formed by the injection molding method.
Moreover, the first mold clamping force required to form the skin-covered portion and the second mold clamping force required to form the non-skinned portion are separately applied to the mold. Therefore, it is possible to obtain a molded product having an excellent appearance.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a molded product manufactured in this example.

FIG. 2 is a partial perspective view of a molded product manufactured in this example.

FIG. 3 is a vertical cross-sectional view for explaining a step of setting a skin material.

FIG. 4 is a vertical cross-sectional view for explaining a step of injecting and arranging a first raw material.

FIG. 5 is a vertical cross-sectional view for explaining a forming step (first mold clamping step) of the surface skin portion.

FIG. 6 is a partial perspective view for explaining the form of a diaphragm space.

FIG. 7A is a partial vertical cross-sectional view for explaining the state of the first raw material in the molding space, and FIG. 7B is the first longitudinal sectional view in the molding space.
Partial vertical cross-sectional view for explaining the state of the raw material, (c) is a partial vertical cross-sectional view for explaining the state of the first raw material in the molding space, (d) is the first vertical sectional view in the molding space It is a partial longitudinal cross-sectional view for explaining the state of the raw material.

FIG. 8 is a vertical cross-sectional view for explaining the front side of the second mold clamping step.

FIG. 9 is a partial vertical cross-sectional view for explaining the shape of a molding space according to a modified example of this embodiment.

FIG. 10 is a vertical cross-sectional view for explaining a latter stage side in the second mold clamping step.

FIG. 11 is a vertical cross-sectional view for explaining a molding process of the non-skin portion.

FIG. 12 is a vertical cross-sectional view for explaining a mold releasing process of a molded product.

13A is a partial perspective view of a mold device according to a modified example of the present embodiment, and FIG. 13B is a partial perspective view of a molded product produced by the mold device of FIG. 13A.

14A is a partial perspective view of a mold device according to a modified example of the present embodiment, and FIG. 14B is a partial perspective view of a molded product produced by the mold device of FIG. 14A.

15A is a partial perspective view of a mold device according to a modified example of the present embodiment, and FIG. 15B is a partial perspective view of a molded product manufactured by the mold device of FIG. 15A.

16A is a partial vertical cross section of a molded product according to a modification of the present embodiment, FIG. 16B is a partial vertical cross section of a molded product according to a modification of the present embodiment, and FIG. It is a partial longitudinal cross section of the molded product which concerns on the modification of an example.

FIG. 17 is a perspective view for explaining a molded product according to a conventional example.

FIG. 18 is a vertical sectional view of a molded product according to a conventional example.

FIG. 19 is a vertical sectional view of an injection compression mold device.

FIG. 20 is a perspective view of a molded product according to a conventional example.

FIG. 21 is a vertical cross-sectional view of a mold device that the present inventor has already proposed.

22 (a) is a partial vertical cross-sectional view for explaining how the first raw material impregnates the foam layer of the skin portion, and FIG. 22 (b) shows how the first raw material impregnates the foam layer of the skin portion. It is a partial longitudinal cross-sectional view for explaining.

FIG. 23 (a) is a partial vertical cross-sectional view of a molded product having a “sink” on the base material, and FIG. 23 (b) is a partial vertical sectional view of a molded product having a “sink” on the base material. is there.

[Explanation of symbols]

A: molded article, 1; skin part, 11; skin part, h; skin material, 11a; skin layer, 11b; foam layer, 12; base material part,
2; non-skin portion, 3; connecting portion, 4; resin reservoir portion, 52
1; cavity type, 521a; main body section, 521b; slide section, T; protrusion section, 522; core type, 522a; fixed section, 522b; movable section, 522c; return pin, 5
8: Positioning means, 581; Spring, 582a, 58
2b; movable block, 583a, 583b; hydraulic cylinder, I; interlock mechanism, K ₁ ; first space (injection compression molding space), K ₂ ; second space (injection molding space),
K ₃ ; throttle space, K ₄ ; auxiliary space, D; step, 61; first Holler runner nozzle (injection arrangement means), 62; second Holler runner nozzle (injection injection means), Y ₃ ; unpressed gap, Y ₄ ; amount of retreat.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B29L 9:00

Claims (8)

[Claims] 1. A cavity mold capable of forming a first space for injection compression molding, a second space for injection molding, and one or more throttle spaces that connect the first space and the second space. After opening the mold including the core mold, a predetermined foam layer-containing skin material is arranged on the first space side of the cavity mold or the core mold, and then the first mold
While injecting and arranging a predetermined thermoplastic resin on the space side, or after injecting and arranging the same, a first mold clamping operation for applying a first mold clamping force to the mold is carried out, thereby applying the thermoplastic resin to the first resin. The mold is injection-molded into the first space by substantially filling the space, and then controlling the compression force applied to the first space within a range not exceeding the first mold clamping force, After performing a second mold clamping operation that applies a second mold clamping force larger than the first mold clamping force, a predetermined thermoplastic resin is injected and injected into the second space, and the thermoplastic resin is injected. By filling the second space and the narrowed space with each other to injection-mold a non-skin portion in the second space, and to span the narrow space between the non-skin portion and the covered skin portion. A method for producing a composite type resin molded article, which comprises injection-molding a connecting portion. 2. A slide part capable of retracting a portion of at least one of the cavity mold and the core mold that forms the first space so as to move away from the first space along the opening / closing direction of the mold. The first mold clamping operation is performed by fixedly arranging the slide portion at the advancing end, and pressing the predetermined mold between the parting surfaces of the cavity mold and the core mold. 3. The second mold clamping operation is performed in a state where there is a residual gap, and the second mold clamping operation is performed by abutting the parting surfaces while retracting the slide portion at least a distance corresponding to the residual gap. A method for producing the composite type resin molded article described. 3. The cavity mold and the core mold are continuous with the first space, the second space, and the diaphragm space, in the vicinity of the diaphragm spaces, without being in a diaphragm state with the first space. And an amount of the thermoplastic resin injected and arranged on the side of the first space from an amount of filling only the first space to an amount of filling the first space and the auxiliary space. The method for producing a composite-type resin molded article according to claim 1 or 2, wherein 4. The composite-type resin according to claim 1, wherein a space width of the throttle space along the throttle direction in the first mold clamping operation is 0.5 to 3.0 mm. Molded article manufacturing method. 5. The spacing between the parting surfaces of the cavity mold and the core mold when the thermoplastic resin is injected into the first space is arranged in an interval of 10 to 50 mm. A method for producing a composite type resin molded product according to claim 1. 6. A base material portion of a surface skin portion having a base material portion made of a foam layer and a thermoplastic resin, a non-skin portion made of a thermoplastic resin, the surface skin portion, and A resin molding die device for manufacturing a composite-type resin molded article while integrally molding the non-skin portion and at least one connecting portion made of a thermoplastic resin. A first space for injection compression molding the base material portion, a second space for injection molding the skinless portion, the first space and the second space, and the connecting portion. The mold includes a cavity mold and a core mold capable of forming one or more drawing spaces for injection molding, and a portion forming the first space of at least one of the cavity mold and the core mold is the mold. Can be retracted so as to move away from the first space along the opening and closing direction of A mold configured with a slide portion fixedly arranged at the forward end, and a predetermined thermoplastic resin material is injected and arranged in the cavity space or the core mold in the first space side when the mold is opened. And a position where the slide portion is fixedly arranged at the forward end, and between the parting surfaces of the cavity mold and the core mold together with or after the operation of the injection arrangement means. , A first mold clamping operation for applying a first mold clamping force to the mold in a state where a predetermined unpushed gap is formed, and at least the slide part is left in the unpushed gap after the first mold clamping operation. A second mold clamping operation for abutting the parting surfaces while applying a second mold clamping force larger than the first mold clamping force to the mold in a state of retracting by a corresponding distance; And a mold clamping means for performing the second mold clamping operation. Further, injection molding means for injecting a predetermined thermoplastic resin material into the second space so as to fill the second space and the throttle space. Mold equipment. 7. The cavity mold and the core mold are continuous to the first space, the second space, and the diaphragm space, and in the vicinity of the diaphragm spaces without being in a diaphragm state with the first space. The mold device for resin molding according to claim 6, which can form an auxiliary space for forming the auxiliary mold. 8. The space width along the throttle direction of the throttle space during the first mold clamping operation is 0.5 to 3.0 m in all cases.
The mold apparatus for resin molding according to claim 6 or 7, wherein m is m.