JPH05301243A - Production of resin molded product having skin - Google Patents

Abstract

PURPOSE:To reduce manhours and cost and to prevent the deformation of the embossed pattern of a skin by continuously performing the vacuum molding of the skin and the compression molding of a base material by a common mold at the time of the production of a resin molded product having the skin to eliminate a skin attaching and detaching process between molds. CONSTITUTION:A skin molding process sucking a resin sheet to the molding surface 12 having an embossed pattern of a first mold 10 having air permeability and pressure resistance under vacuum to mold a skin 3 and holding the skin 3 in a vacuum state, a molten resin supply process supplying a molten resin having adhesiveness to the skin 3 to the space between the first mold 10 and the second mold 50 opposed thereto and a base material molding process clamping the first and second molds 10, 50 and compressing the molten resin 7 to forcibly expand the same throughout the cavity between both molds to mold a base material 2 and simultaneously bonding the base material 2 and the skin 3 to integrally mold a resin molded product 1 having the skin are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin-molded article with a skin formed by laminating a resin-made skin having an uneven pattern on the surface of a resin, such as an automobile instrument panel, a console box, The present invention relates to a method for manufacturing a door trim or the like.

[0002]

2. Description of the Related Art As a method of manufacturing a resin molded product with a skin of this type, a resin sheet having an uneven pattern is arranged between an upper mold and a lower mold of a compression mold, and a molten resin is further supplied. From the above, there is known a method in which both molds are clamped, a skin is formed from a resin sheet, and a base material is formed from a molten resin, and at the same time, the base material and the skin are bonded together (for example, JP-A-64)
-61214).

Further, after the resin sheet is vacuum-suctioned in advance by a vacuum forming die to form an outer skin, the outer skin is removed from the vacuum forming die and set again on the upper die of the compression forming die, so that A method is also known in which a molten resin is supplied to the upper part, then both molds are clamped, the molten resin is compressed and spread into a cavity to form a base material, and at the same time, a base material and a skin are attached to each other. Kaihei 3-138114).

[0004]

In the first method, however, the number of steps is small because the compression molding of the skin and the base material is performed at the same time, but the skin cannot be squeezed into a deep shape. Further, since the skin is pressed against the molding surface of the upper mold by the high temperature molten resin, there is a problem that the uneven pattern of the skin is deformed and the sharpness is impaired.

In the second method, since the skin is vacuum-formed in advance, it can be squeezed to a considerably deep shape. However, when the base material is compression-molded, the concavo-convex pattern of the skin is deformed and the sharpness is impaired. Was left. Further, since the vacuum forming of the skin and the compression forming of the base material are performed by different molds, there are the following problems.

A troublesome desorption process of removing the formed skin from the vacuum forming die and setting it again in the upper die of the compression forming die is necessary. Air intervenes between the upper mold of the compression mold and the skin that has been reset, and the plate thickness accuracy of the base material is likely to decrease. Naturally, both the vacuum mold and the upper mold of the compression mold must be manufactured. Moreover, the skin will shrink slightly due to changes with time from the vacuum forming of the skin to the compression molding of the base material through the desorption process.Therefore, in consideration of the shrinkage, a vacuum slightly larger than the upper mold of the compression mold is expected. Molds must be designed and manufactured.

The object of the present invention is to solve the above problems and to enable vacuum molding of the skin and compression molding of the base material to be performed continuously with a common mold, thereby eliminating the step of removing the skin from the mold to the mold. It is possible to reduce the man-hours and costs, prevent air from intervening between the mold and the skin, and improve the thickness accuracy of the base material. It is possible to reduce the number of molds by sharing the mold. , Prevents the contraction of the skin and facilitates the design of the vacuum mold,
Another object of the present invention is to provide a novel method for producing a resin-molded article with a skin, which can prevent the unevenness of the skin from being deformed and maintain sharpness.

[0008]

In order to achieve the above object, a method for producing a resin-molded article with skin according to the present invention comprises a first-type concave-convex molded surface having air permeability and pressure resistance, A resin sheet is vacuum-suctioned to form a skin, and a skin forming process in which it is suction-held as it is, and a melt with adhesiveness to the skin between the first mold that suction-holds the skin and the second mold that faces it. A molten resin supplying step of supplying a resin, a first mold and a second mold are clamped, the molten resin is compressed and spread into a cavity between both molds to form a base material, and at the same time, a base material and a skin are formed. And a base material molding step of integrally molding a resin molded article with a skin by laminating (claim 1).

Here, the "first mold having breathability and pressure resistance" means that the first mold is at least breathable enough to allow vacuum molding of the skin and at least compression-moldable of the base material. It means that it has a sufficient degree of pressure resistance. Examples of the first mold include an electroforming mold in which the back surface of an electroformed shell having a large number of ventilation holes is backed up by a backing having air permeability and pressure resistance, and a gas permeable porous ceramic mold. be able to. Preferably, a non-electro-deposited portion generated in the early stage of electroforming grows with the progress of electroforming to form a large number of vent holes, which is a breathable electroformed shell (for example, Japanese Patent Publication No.
No. 14434).

The material of the "resin sheet" is a thermoplastic resin, which may have a single-layer structure or a multi-layer structure, and may include a foamed layer for giving a soft feeling. Further, the first mold and the second mold are often arranged as an upper mold and a lower mold, respectively, but it is also possible to arrange them in reverse, or to arrange them on the left and right.

In the skin forming step, the skin forming step can be carried out in a state in which the first die is arranged as an upper die and the first die is inverted so that the forming surface faces upward (claim 2). .. In addition, the first mold is arranged as an upper mold, and a skin is placed on the flat upper surface of the plug mold facing the first mold, and both molds are clamped, and the land of the first mold and the upper surface of the plug mold are separated. After the peripheral edge portion of the resin sheet is sandwiched and sealed, the skin forming step can be performed in a state in which the resin sheet is air-pressured upward from the air-pressure opening opened on the upper surface of the plug mold (claim 3).

In the base material molding step, it is general that the second mold is provided with a slide cut portion which is in sliding contact with the first mold through the skin in the mold clamping direction, and the slide cut portion seals between the two molds. However, it can be sealed as follows. That is, the second mold is composed of an outer member having lands and an inner member supplying molten resin, which are relatively displaceable. Then, the outer member and the first die are clamped, and after the outer peripheral member land and the land of the first die are sandwiched to seal the peripheral portion of the epidermis, the inner portion and the first die are clamped, The molten resin supplied to the inner member is compressed to form the base material (claim 4).

[0013]

According to the manufacturing method of claim 1, the skin formed in the skin forming step is sucked and held in the first mold as it is, and the following molten resin supply step and base material forming step are performed using this first mold. Therefore, the vacuum forming of the skin and the compression forming of the base material can be continuously performed with a common mold. Therefore, it is possible to eliminate the process of detaching the epidermis from mold to mold, prevent air from intervening between the mold and the epidermis, reduce the number of molds, prevent contraction of the epidermis, and even the uneven pattern of the epidermis. It is possible to prevent deformation and maintain sharpness.

According to the manufacturing method of the second aspect, the skin forming step is performed in a state where the molding surface of the first mold is turned upside down. Therefore, when the softened resin sheet is placed on the first mold. The central portion of the resin sheet hangs downward and approaches the molding surface of the first mold. In this state, vacuum forming of the skin can be performed without using the plug type.

According to the manufacturing method of the third aspect, the skin is placed on the flat upper surface of the plug mold, and the peripheral edge of the resin sheet is sandwiched between the land of the first mold and the upper surface of the plug mold. Since the skin forming process is performed while the sheet is compressed, it becomes possible to use a resin sheet with a smaller area,
Moreover, the clamp of the resin sheet becomes unnecessary.

According to the manufacturing method of the fourth aspect, the seal between the first die and the second die is reliably performed by sandwiching the skin by the land of the outer member and the land of the first die.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. The molded article 1 manufactured in this example is as shown in FIG.
As shown in FIG. 1 and FIG. 16, it is composed of a base material 2 made of polypropylene (PP) resin and having a U-shaped cross section, and a skin 3 attached to the surface thereof. The skin 3 is formed from a resin sheet 4 shown in FIG. 1 and the like, and the resin sheet 4 is
It has a two-layer structure of a soft vinyl chloride resin sheet 5 having a thickness of about 0.8 mm and a PP foam 6 having a thickness of about 3 mm attached to the back surface thereof.

The first mold 10 commonly used in all the steps is arranged as an upper mold, and is constructed by using an air-permeable electroformed shell 11 as shown in FIG. This breathable electroformed shell 11 is manufactured by, for example, the method disclosed in Japanese Patent Publication No. 2-14434, and includes a molding surface 12 having a U-shaped cross section and a substantially horizontal land 13 around the molding surface 12. At the same time as electroforming, a large number of ventilation holes 14 having a diameter increased toward the back side are formed. In addition, the molding surface 12 is provided with a fine uneven textured pattern.

A support frame 15 is attached to the peripheral edge of the back surface of the air-permeable electroformed shell 11, and the upper end of the support frame 15 is closed by a base 16 to form a decompression chamber on the back surface of the air-permeable electroformed shell 11. .. A decompression device 19 such as a vacuum pump is connected to the decompression chamber via a valve 18 and the like. Breathable electroformed shell 11
The back surface of the is a pressure resistant backing 21 (a part of which is omitted for convenience of drawing) in which a large number of metal particles and ceramic particles (preferably spherical) are hardened by an epoxy resin so as not to lose air permeability between the balls. It has a breathability and a pressure resistance as described above. Further, a cooling pipe 22 through which cooling water flows is arranged at a key portion on the back surface of the air-permeable electroformed shell 11.

Now, the manufacturing method of this embodiment comprises four steps of a skin forming step, a molten resin supplying step, a base material forming step, and a mold releasing step, and each step includes some examples of steps. I'm out. Hereinafter, these steps will be divided.

A. Skin Forming Step As an example of this step, there are three kinds of step example A1 shown in FIGS. 1 to 3, step example A2 shown in FIGS. 4 and 5, and step example A3 shown in FIGS. 6 and 7. Process Example A1 As shown in FIG. 1, the peripheral portion of the resin sheet 4 is clamped 2
Hold it horizontally with 3. The resin sheet 4 is heated to 120 ° C. to 200 ° C. by the heaters 24 facing each other to be softened, and the central portion is hung downward by its own weight as shown by a chain line in FIG. Subsequently, as shown in FIG. 2, the resin sheet 4 is set between the first die 10 and the plug die 30 so that the soft vinyl chloride resin sheet 5 faces the first die 10 side.

The plug mold 30 is composed of a plug body 31 and a base 37 attached to the lower surface thereof.
The plug main body 31 is formed by integrally forming a convex portion 32 having a rectangular cross section, which is slightly smaller than the molding surface 12 of the first mold 10, and a substantially horizontal land 33 around the skirt thereof with an epoxy resin. Further, inside the plug body 31, an intake port 34 opening to the side surface, a chamber 35 in the central portion,
A plurality of compressed air ports 36 that open on the upper surface of the convex portion 32 are formed so as to communicate with each other, and a compressed air device (not shown) is connected to the intake port.

Next, as shown in FIG. 3, the first die 10 and the plug die 30 are clamped while the resin sheet 4 is pushed toward the molding surface 12 by the convex portions 32, and the first die 1 is closed.
The land 13 of 0 and the land 33 of the plug type 30 sandwich and seal the peripheral edge of the resin sheet 4. In this example,
The die 10 is clamped by lowering the first die 10 and raising the plug die 30 with respect to the stationary resin sheet 4. After the mold is clamped, the clamp 23 can be removed from the resin sheet 4.

Next, while the resin sheet 4 is air-compressed upward from the air pressure opening 36 of the plug mold 30 by the air pressure device, the resin sheet 4 is vacuum-sucked to the molding surface 12 from the ventilation hole 14 of the first mold 10 by the pressure reducing device 19. By doing so, the outer skin 3 having a U-shaped cross section is formed. At the same time, the concavo-convex pattern of the molding surface 12 is transferred to the surface of the skin 3 to form a sharp concavo-convex pattern. Pneumatic pressure is 0.1 to 2.0 kg
/ Cm ² is preferable. After that, the mold is opened, but the skin 3 is suction-held on the molding surface 12 as it is.

Process Example A2 As shown in FIG. 4, the first die 10 is configured to be rotatable, and the first die 10 is attached to the molding surface 1 as indicated by a chain line and an arrow in the figure.
Flip so that 2 faces upward. When the resin sheet 4 sandwiched, heated, and softened is placed on the land 13 of the first mold 10 as in the process example A1, the central portion of the resin sheet 4 hangs downward and approaches the molding surface 12. In this state, even if the plug type used in the process example A1 is not used, as shown in FIG.
Vacuum suction the resin sheet 4 to the molding surface 12 from
It is possible to form the skin 3 having the uneven pattern. After this molding, while the skin 3 is suction-held on the molding surface 12, the first mold 10 is rotated so that the molding surface faces downward as shown by the arrow and the chain line in the figure.

Therefore, according to this process example A2, neither the plug mold nor the mold clamping work is required, so that the number of molds, man-hours, and cost can be reduced as compared with the process example A1.

Process Example A3 As shown in FIG. 6, a resin sheet 4 having a small area in which a peripheral edge portion is cut as compared with the resin sheet used in Process Example A1 is
After sandwiching, heating, and softening as in the process example A1, the sandwich is released and placed on the upper surface of the plug mold 40. This plug type 4
0 is composed of an epoxy resin plug main body 41 having a flat upper surface and a base 45 attached to the lower surface thereof. Inside the plug body 41, an inlet 42 that opens to the side, a chamber 43 at the center, and a plurality of compressed air openings 44 that open to the upper surface are formed so as to communicate with each other. The device is connected.

Then, as shown in FIG. 7, the first die 10 and the plug die 40 are closed, and the resin sheet 4 is sandwiched between the land 13 of the first die 10 and the upper surface of the plug die 40. Then, while the resin sheet 4 is air-compressed upward from the air-pressure opening 44 of the plug mold 40 by the air-pressure device, the pressure reducing device 19
By vacuum suction of the resin sheet 4 to the molding surface 12 from the ventilation hole 14 of the first mold 10, the skin 3 having the uneven pattern is molded. After that, the mold is opened, but the skin 3 is suction-held on the molding surface 12 as it is.

Therefore, according to this process example A3, by flattening the upper surface of the plug mold 40, the resin sheet 4 having a smaller area can be used, and the clamp 23 is also unnecessary. Resource saving, cost reduction, and the like can be achieved as compared with Example A1.

B. Molten Resin Supplying Step As an example of this step, there are two kinds of an example of a step B1 shown in FIG. 8 and an example of a step B2 shown in FIG. Process Example B1 As shown in FIG. 8, an extrusion head 51 is provided above the second mold 50.
The die 52 is disposed, the molten PP resin 7 is discharged from the die 52, and a predetermined amount of the molten PP resin 7 is supplied to the upper surface of the second die 50 in a mountain shape.

The second mold 50 is arranged as a lower mold and is composed of a mold body 53 and a base 54 attached to the lower surface thereof. The mold body 53 includes a molding portion 55 having a rectangular cross section smaller than the molding surface 12 of the first mold 10 by the thickness of the molded product 1, and a sliding portion having a rectangular cross section smaller than the molding surface 12 by the thickness of the resin sheet 4. The cut portion 56 is integrally formed in the upper and lower sides with a metal material for mold such as steel and zinc alloy. A horizontal boundary surface 57 between the molding portion 55 and the slidable portion 56.
When the first die 10 and the second die 50 are clamped as shown in FIG. 11, the molding surface 1 from the land 13 of the first die 10
It is located so as to enter about 10 mm in 2.

Process Example B2 As shown in FIG. 9, the resin passage 5 is provided inside the second mold 50 including the molding portion 55, the sliding portion 56, the boundary surface 57, and the like.
8 and a step portion 60 in the nozzle 59, which is provided so as to be movable up and down via a spring 61.
Push-out mechanism 63 having an opening / closing member 62 for opening and closing the upper end of the
Is provided. The opening / closing member 62 is lowered to discharge the molten PP resin 7 from the upper end of the resin passage 58, and a predetermined amount of the molten PP resin 7 is supplied to the upper surface of the second die 50 in a mountain shape.

C. Base Material Forming Step and Release Step As an example of this step, Step Example C1 shown in FIGS.
Then, two kinds of process example C2 shown in FIGS. Process example C1 The first mold 10 that suction-holds the skin 3 on the molding surface 12 in the skin forming process (any of the process examples A1, A2, and A3 may be adopted), and the molten resin supply process (process example B1, Any of B2 may be adopted) and the second mold 50 having the molten PP resin 7 supplied to the upper surface thereof is faced to each other as shown in FIG. When the process example A1 or A2 is adopted, the plug mold 30 or 40 is replaced with the second mold 50 or the first mold 10 is moved by a slide mechanism or the like (not shown) to move the first mold 10 and the first mold 10 together. Confront the type 2 50. When the process example A2 is adopted, the second mold 50 is previously arranged below the first mold 10, and after the skin forming, the first mold 50 is rotated in the forward direction as described above to face the second mold 50. Let

Then, as shown in FIG. 11, by lowering the first die 10 with respect to the stationary second die 50,
Both molds 10 and 50 are clamped. Clamping pressure is 30 to 20
About 0 kg / cm ² is preferable. After the molten PP resin 7 is compressed by the mold clamping pressure and spread in the cavity between the molds 10 and 50, the molten PP resin 7 is cooled and cured by the temperature-controlled molds 10 and 50. The letter-shaped base material 2 is formed. In addition, at the time of mold clamping, a portion 10 mm from the lower end of the molding surface 12 of the first die 10 and a portion 10 mm from the upper end of the slidable portion 56 of the second die 50 sandwich the skin 3 and seal between them. Leakage of the molten PP resin 7 to the outside of the cavity is prevented.

Simultaneously with the compression molding, the P on the back side of the skin 3 is
Due to the adhesiveness between the P foam 6 and the molten PP resin 7, the base material 2 and the skin 3 are bonded together without using an adhesive, and the molded product 1 is integrally molded.

Next, as shown in FIG. 12, the first mold 10 and the second mold 50 are opened, and the molded product 1 is released. Epidermis 3
The peripheral marginal portion is processed by trimming or winding it on the back side of the molded product 1.

Process Example C2 Similar to the process example, the skin 3 is formed on the forming surface 12 in the skin forming process.
FIG. 13 shows the first mold 10 that has suction-held the second mold 50 and the second mold 50 that has the molten PP resin 7 supplied to the upper surface in the molten resin supply step.
Face up as shown in. However, the mold body 53 of the second mold 50 is composed of an inner member 64 and an outer member 65 that are relatively displaceable. The inner member 64 is fixed on the base 54, and the convex portion 6 to which the molten PP resin 7 is supplied on the upper surface.
6 and an eject pin 68 that is vertically movably inserted into a guide hole 67 that is formed through the convex portion 66. The outer member 65 is a molding portion 55 having a rectangular cross section and a hollow shape, which is smaller than the molding surface 12 of the first die 10 by the thickness of the molded product 1.
And a substantially horizontal land 69 around the skirt thereof, and the hollow portion of the molding portion 55 is slidably inserted into the convex portion 66. Then, a pressing spring 71 is attached to the cylindrical hole 70 formed in the inner member 64, and the pressing member 71 causes the outer member 6 to move.
5 is supported by being floated from the inner member 64.

Next, as shown in FIG. 14, by lowering the first die 10 with respect to the stationary second die 50, first, the land 13 of the first die 10 and the elastic force of the presser spring 71 are used. The peripheral portion of the skin 3 is sandwiched by the land 69 of the outer member 65 biased upward, and the space between them is sealed. Then, the first die 10 is lowered to completely clamp the two dies 10, 50 as shown in FIG. At this time, the outer member 65 descends against the elastic force of the pressing spring 71, and the molten PP resin 7 is compressed and spread in the cavity between the molds 10 and 50. Therefore, as in the process example C1,
The molding of the base material 2 and the laminating of the skin 3 are performed at the same time.

Therefore, according to the process example C2, the seal between the first die 10 and the second die 50 is reliably ensured by the sandwiching of the skin 3 by both lands 13, 69 based on the elastic force of the presser spring 71. Done. On the other hand, with the seal formed by the slidable portion 56 of Process Example C1, since the force for holding the skin 3 is weak, there is a possibility that the molten PP resin 7 may leak from the PP foam 6 side that is particularly susceptible to deformation.

Next, as shown in FIG. 16, the first die 10 and the second die 50 are opened, and the eject pin 68 is raised to release the molded product 1. The processing of the marginal excess portion of the skin 3 is the same as in the process example C1.

The present invention is not limited to the configuration of the above-mentioned embodiment, and can be embodied by appropriately changing it without departing from the spirit of the invention.

[0042]

Since the invention according to claim 1 is configured as described above, the vacuum molding of the skin and the compression molding of the base material can be continuously performed with a common mold, so that the mold of the skin can be removed. It is possible to reduce the number of steps and costs by eliminating the process of attaching and detaching to the mold, prevent the intervention of air between the mold and the skin, and improve the plate thickness accuracy of the base material. It is possible to reduce the number, to prevent the contraction of the epidermis, to facilitate the design of the vacuum forming mold, and to prevent the deformation of the uneven pattern of the epidermis to maintain the sharpness.

According to the second aspect of the present invention, neither the plug type nor the die clamping work is required.
It is possible to reduce man-hours and costs. According to the invention described in claim 3, since the resin sheet having a smaller area can be used and the clamp is not necessary, resource saving and cost reduction can be achieved. Further, according to the invention described in claim 4, it is possible to reliably perform the sealing between the first mold and the second mold, and it is possible to prevent leakage of the molten resin.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a softening process of a resin sheet in a process example A1 of a skin forming process according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state before mold clamping in the process example A1.

FIG. 3 is a cross-sectional view showing a state after mold clamping in the process example A1.

FIG. 4 is a cross-sectional view showing a state before skin forming in Process example A2 of the skin forming process.

FIG. 5 is a cross-sectional view showing a state after forming a skin in the same process example A2.

FIG. 6 is a cross-sectional view showing a state before mold clamping in process example A3 of the skin forming process.

FIG. 7 is a cross-sectional view showing a state after mold clamping in the process example A3.

FIG. 8 is a sectional view showing a process example B1 of a molten resin supply process.

FIG. 9 is a sectional view showing a process example B2 of a molten resin supply process.

FIG. 10 is a cross-sectional view showing a state before mold clamping in process example C1 of the base material molding process and the mold release process.

FIG. 11 is a cross-sectional view showing a state after mold clamping in the process example C1.

FIG. 12 is a cross-sectional view showing a mold release process in Process Step C1.

FIG. 13 is a cross-sectional view showing a state before mold clamping in process example C2 of the base material molding process and the mold release process.

FIG. 14 is a cross-sectional view showing a state in the middle of mold clamping in the same process example C2.

FIG. 15 is a cross-sectional view showing a state after mold clamping in the process example C2.

FIG. 16 is a cross-sectional view showing the mold release step in the same process example C2.

[Explanation of symbols]

 1 Molded Product 2 Base Material 3 Skin 4 Resin Sheet 7 Molten PP Resin 10 First Mold 12 Molding Surface 13 Land 30 Plug Model 36 Compressed Air Port 40 Plug Model 44 Compressed Air Port 50 Second Model 64 Inner Member 65 Outer Member 69 Land

Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display area B29L 31:30 4F

Claims (4)

[Claims] 1. A skin forming step of vacuum-suctioning a resin sheet to form a skin on a molding surface of a first mold having air permeability and pressure resistance, and then suction-holding the skin, and suctioning the skin. A molten resin supply step of supplying a molten resin having adhesiveness to the skin between the held first die and a second die facing the first die, and clamping the first die and the second die. Then, a base material molding step of compressing the molten resin and expanding it into a cavity between the two molds to form a base material, and at the same time bonding the base material and the skin to integrally mold a resin-molded product with a skin. A method for producing a resin-molded article with a skin containing: 2. The skin according to claim 1, wherein the first die is an upper die whose molding surface faces downward, and the skin forming step is performed in a state in which the first die is inverted so that the molding surface faces upward. For manufacturing resin molded products with adhesive. 3. The first mold is an upper mold whose molding surface faces downward, and in the skin forming step, the skin is placed on the flat upper surface of the plug mold facing the first mold, and both molds are clamped. After the peripheral edge of the resin sheet is sandwiched and sealed between the land of the first mold and the upper surface of the plug mold, the resin sheet is compressed upward from the compressed air opening opened on the upper surface of the plug mold. A method for producing a resin molded article with a skin according to claim 1. 4. The second mold is provided with an outer member having a land and an inner member supplying molten resin so as to be relatively displaceable, and in the base material molding step, the outer member and the first mold are molded. After clamping and sealing the peripheral edge of the skin between the land of the outer member and the land of the first mold, the inner part and the first mold are clamped, and the molten resin supplied to the inner member is fixed. The method for producing a resin molded article with a skin according to claim 1, which is carried out by compression.