JPH11300753A - Mold device for skin-integrated molding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mold in a desired shape even when the deformation rate of a skin material sheet is large locally in a mold device for skin-integrated molding. SOLUTION: The first molding mold 10 comprises the first molding mold main body in which the first molding surface 12 is formed and a slide member 15 which encloses the outside of the first molding surface, has a contact surface 10a which can contact the second molding mold 20, and is guided/supported by the first molding mold main body reciprocatably. With the slide member located at the elevated first position, a skin material sheet 30A is brought into contact with the contact surface and attracted to the first molding surface by the application of a negative pressure, the slide member is brought down to the second position so that the locally floated skin material sheet is made to adhere completely to the first molding surface, an urethane raw material 31A to be a cushion pad is packed/expanded between the second molding mold in contact with the contact surface and the sheet. A non-expandable synthetic resin can bed used to be packed between the second molding mold and the sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a mold apparatus for simultaneously molding a synthetic resin product and simultaneously molding a skin covering the surface thereof.

[0002]

2. Description of the Related Art In a block-shaped sheet used for a forklift or the like, as shown in FIG. 11, for example, a cushion pad 6 made of a soft urethane foam and a skin 5 covering the surface thereof are simultaneously formed. ing. That is, a concave molding surface 2 is formed in the center portion, and a contact surface 1a continuous with the upper surface of the outer peripheral portion surrounding the molding surface 2 is formed.
First, the skin sheet material 5A to be the skin 5 is heated and softened to be brought into contact with the contact surface 1a (see FIG. 11 (a)), and the skin sheet material 5A and the molding surface are formed. 2 is sucked by a vacuum source through a suction passage 3 including an intermediate chamber 3a, a fine hole 3b, and a suction port 3c to adsorb the skin sheet material 5A to the molding surface 2, and the air in the molding surface 2 An unfoamed urethane material 6A to be foamed to become the cushion pad 6 is placed on the skin sheet material 5A (see FIG. 11 (b)). Next, the upper mold 4 is brought into contact with the contact surface 1a via the skin sheet material 5A, and the urethane material 6A is foamed to fill the space between the upper mold 4 and the sheet material 5A (see FIG. 11C). ), A sheet S in which a soft cushion pad 6 is covered with a skin 5 by taking out the cured cushion pad 6 (see FIG. 11D).
Is obtained. In addition, a protruding portion 1b that protrudes inward is provided in a portion that becomes the contact surface 1a of the lower mold 1, so that a concave stepped portion Sa is formed around the end of the sheet S.

[0003]

In the above prior art, the sheet material for skin 5A undergoes considerable deformation when it is attracted to the molding surface 2, and in particular, the undercut portion below the overhang portion 1b of the lower mold 1. The portion 5a corresponding to 2a cannot follow the shape of the molding surface 2 because the deformation rate becomes extremely large locally,
As shown in FIG. 11 (b), the shape is raised from the molding surface 2. For this reason, there is a problem that the shape of this portion 5a of the formed sheet S becomes a collapsed shape different from a desired shape having an angle indicated by a two-dot chain line 5b in FIG. 11D. Alternatively, if the filling pressure is high due to injection molding or compression molding of a non-foamable synthetic resin, the portion 5a that has risen from the molding surface 2 of the skin sheet material 5A may be forcibly deformed and become too thin or torn. There is. Such a problem caused by locally increasing the deformation ratio occurs not only in the portion where the undercut portion is formed but also when a deep groove is formed in the molding surface.

An object of the present invention is to solve the above-mentioned problems and to provide a skin integral molding die apparatus capable of forming a desired shape even when the deformation rate of the skin sheet material becomes extremely large locally. And

[0005]

According to the present invention, there is provided a mold apparatus for integrally molding a skin, wherein a first molding surface comprising a bottom surface and an inner wall surface rising from an outer peripheral portion is formed at a center portion and surrounds the first molding surface. A first molding die having a continuous contact surface formed on the upper surface of the outer peripheral portion, and suction between the first molding surface and air between the skin sheet material contacting the contact surface and the first molding surface. A vacuum source for sucking the skin sheet material onto the first molding surface by suction through the passage, and a first source which is provided so as to be able to approach and separate from the first molding die and which comes into contact with the contact surface via the skin sheet material; In the mold apparatus for integral skin molding, comprising a second molding die for forming a space for filling the uncured molding material between the sheet material for the skin adsorbed on the molding surface and the first molding die, A first molding die body having a surface formed thereon, and a front end surrounding the first molding surface and serving as an abutting surface A slide member guided and supported by the first molding die body so as to reciprocate between a first position and a second position where the distance between the contact surface and the bottom surface of the first molding surface is large. When the slide member is at the first position, the skin sheet material is adsorbed to the first molding surface, and when the slide member is at the second position, the uncured molding material is filled. It is characterized by the following.

In a state where the skin sheet material is attracted to the first molding surface, the slide member is at the first position, and the depth of the skin sheet material is larger than the depth after molding. Before the uncured molding material is filled, the slide member is moved to the second position, and the depth of the skin sheet material becomes the depth after molding. Is locally supplied to the portion that has risen from the first molding surface, and the skin sheet material is in close contact with the first molding surface over the entire surface. In this state, the space between the skin sheet material and the second mold is filled with the uncured molding material.

[0007] The slide member may have an overhanging portion protruding inward beyond the inner wall surface of the first molding surface at a portion where the contact surface is formed. In this case, when the skin sheet material is attracted to the first molding surface, the undercut portion below the overhanging portion has a locally large deformation rate, so that it rises from the underside of the overhanging portion. However, the sliding member is
The extraneous skin sheet material that has been moved to the position is bent and enters the undercut portion and is supplied to the portion that has risen from the first molding surface, so that the skin sheet material is adhered even below the overhang portion. .

The first molding surface may have a deep groove formed on the bottom surface close to the inner wall surface. In this case, when the skin sheet material is adsorbed on the first molding surface, the deformation rate is locally large in the deep groove portion, so that the skin sheet material rises.
However, the surplus skin sheet material is moved by the slide member to the second position and is supplied to the portion that has moved and floated from the first molding surface, and the skin sheet material adheres to the first molding surface even in a deep groove portion. Is done.

The slide member may be reciprocated by a cylinder operating device, or may be urged toward a first position by a spring interposed between the slide member and the first molding die body to form the first molding member. The second mold moving toward the mold may be moved to the second position against the spring by being brought into contact with the contact surface via the skin sheet material.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of a mold apparatus for integrally molding a skin according to the present invention will be described with reference to FIGS. The synthetic resin product manufactured according to this embodiment is a block-shaped sheet used for a forklift or the like as described in the related art, and as shown in FIG. 3, a cushion pad 31 made of a soft urethane foam.
Is covered with a flexible skin 30 integrally adhered to the surface thereof. The sheet S in FIG. 3 is shown in an inverted state in order to match with the mold apparatus, and a concave stepped portion Sa is formed around the lower end of the sheet S on the lower side.

As shown in FIG. 1, the mold apparatus for integrally molding a skin of this embodiment is provided with a first fixed-type support member (not shown) mounted on a lower fixed side support member via a surface plate 19.
A molding die (lower die) and a second molding die (upper die) which is attached to an upper movable die supporting member (not shown) via a surface plate 29 and which can approach and separate from the first molding die 10 from above. )
20. The lower die 10 includes a lower die main body (first molding die main body) 11 and a slide member 15 movably guided and supported by the lower die main body.

At the center of the upper side of the lower die body 11, a bottom surface 12a is provided.
And a recessed first molding surface 12 formed of an inner wall surface 12b rising from the outer peripheral portion thereof, and guide grooves 14 continuous to surround the inner wall surface 12b are formed on upper surfaces 11a1 and 11a2 of the lower mold body 11 on the outer side. Are formed. The slide member 15 that continuously surrounds the outside of the first molding surface 12 is directed toward the upper mold 20 by the guide groove 14 (vertical direction).
And is connected to the piston rods 16c of the plurality of cylinder actuators 16. The upper and lower portions of a cylinder 16a defined by a piston 16b are selectively connected to a compressed air source 17 via a switching valve 17a, and the slide member 15 is formed by introducing compressed air into the lower portion of the cylinder 16a. It is raised to the first position shown in FIG. 1 and lowered to the second position shown in FIG. 2B by being introduced into the upper part of the cylinder 16a. The compressed air source 17 and the switching valve 17a are common to all the cylinder actuators 16. Upper die 2 of slide member 15
A projecting portion 15a projecting inward beyond the inner wall surface 12b is formed over the entire circumference at an upper end portion on the 0 side.
The upper surface of the overhang 15a is in contact with the upper mold 20 and the lower mold 1
0 constitutes the contact surface 10a.

In the first position where the slide member 15 is raised, the contact surface 10a at the upper end thereof and the bottom surface 1 of the first forming surface 12 are disposed.
The distance from 2a is large. Further, at the second position where the slide member 15 is lowered, the lower surface of the protruding portion 15a abuts on the inner upper surface 11a2 lower than the outer upper surface 11a1 and is stopped, and between the abutting surface 10a and the bottom surface 12a of the first forming surface 12. Distance is small. On the bottom surface 12a of the first molding surface 12 of the lower mold body 11, a shallow groove 12c is formed close to the inner wall surface 12b. In the intermediate chamber 13a formed in the lower die body 11 below the bottom surface 12a, a large number (only a part is shown in the figure) of the bottom chamber 12a including the groove 12c is opened.
And a suction port 13c communicating with the vacuum source 18 via the switching valve 18a.
a to 13c form the suction path 13.

The upper mold 20 can be approached to and separated from the lower mold 10 from above. FIG. 1 shows the separated state, and FIG. 2C shows the closest state. On the lower surface of the upper die 20 opposed to the lower die 10, a step portion 21b formed at a position inside the inner periphery of the overhang portion 15a of the slide member 15 by the thickness of a skin sheet material 30A described later is formed. The second inside as a border
A molding surface 21 and an outer peripheral surface 21a on the outside are formed.
The outer peripheral surface 21a can contact the contact surface 10a at the upper end of the slide member 15 via the skin sheet material 30A.

The skin sheet material 30A which is bonded to the surface of the cushion pad 31 to form the skin 30 is made of a soft thermoplastic resin such as a polypropylene resin or a vinyl chloride resin which is easily softened by heating. 1.5m
m), and the surface is formed with a grain such as a leather pattern to enhance the design effect. A backing material such as a nonwoven fabric may be provided on the back surface of the sheet material 30A. In addition, the sheet material 30A is provided with a sheet-like synthetic resin foam with high elasticity (for example, vinyl chloride having a thickness of 2 to 3 mm) on the back surface of a thin sheet-like surface layer composed of a dense solid layer of a soft thermoplastic resin. A foamed layer made of a resin foam sheet) may be laminated and bonded in advance to form a sheet. As shown by the two-dot chain line 30A in FIG. 1, the skin sheet material 30A is held by piercing the periphery with a large number of needles 35a provided upright on the holding frame 35.

Next, a method of forming a sheet S using the mold apparatus for integrally forming the skin according to the first embodiment will be described with reference to FIGS. First, as shown in FIG.
0 and the slide member 15 is moved to the cylinder operating device 1.
In a state where the sheet material 3 is raised to the first position by the step 6, the sheet material 3 for the skin is softened by being heated (for example, 120 ° C.) by the far-infrared heater or the like and held by the holding frame 35 as described above.
2A is brought into contact with the contact surface 10a at the upper end of the slide member 15, as shown in FIG. 2A, to substantially seal the space between the first molding surface 12 and the skin sheet material 30A. Then, when a negative pressure from the vacuum source 18 is applied to the lower side of the skin sheet material 30A through the suction path 13, the skin sheet material 30A becomes as shown by the solid line in FIG. 1 and the two-dot chain line in FIG. The first molding surface 12 of the lower mold body 11 is sucked. At this time, a part of the skin sheet material 30A serving as the peripheral portion is drawn inside the overhang portion 15a as shown by the arrow X1, but corresponds to the undercut portion below the overhang portion 15a of the slide member 15. In the portion where the skin material 30A is deformed, the deformation rate of the skin sheet material 30A becomes extremely large locally, so that it cannot follow the shapes of the first molding surface 12 and the overhang portion 15a, and as shown by reference numeral 30b, the upper portion of the inner wall surface 12b and the overhang portion It has a shape that is raised from the lower surface 15b of 15a. Further, since the slide member 15 is at the first position, the depth of the skin sheet material 30A is larger than the depth after molding.

Next, by switching the switching valve 17a to introduce the compressed air from the compressed air source 17 into the upper portion of the cylinder 16a, the slide member 15 is moved toward the lower mold body 11 as shown by an arrow Y1 in FIG. It is moved and stopped at the second position where the lower surface 15b of the overhang portion 15a contacts the inner upper surface 11a2. Due to this movement, the depth of the skin sheet material 30A decreases to the depth after molding, and the surplus skin sheet material 30A
A is bent, enters the undercut portion below the overhang portion 15a, and is supplied to the portion raised from the first molding surface 12, and the skin sheet material 30A is continuously supplied by the negative pressure from the vacuum source 18 which is provided. As shown by reference numeral 30a, the upper surface of the inner wall surface 12b of the first molding surface 12 and the lower side of the overhang portion 15a of the slide member 15 are also in close contact with each other. In this state, the inside of the first molding surface 12 and the overhang portion 15a
An unfoamed urethane material 31A to be foamed and to become the cushion pad 31 is placed on the skin sheet material 30A closely adhered to the lower surface 15b.

Next, the upper mold 20 is made to approach the lower mold 10, and the second molding surface 21 at the center of the upper mold 20 is put into the skin sheet material 30A adhered to the overhang portion 15a, and is put through the skin sheet material 30A. The outer peripheral surface 21a is brought into contact with the contact surface 10a on the upper side of the slide member 15 to stop. In this state, the urethane material 31A foams and fills the space between the skin sheet material 30A and the second molding surface 21 of the upper mold 20, as shown in FIG. Then, when the skin sheet material 30A and the urethane material 31A are cooled and hardened, the upper mold 20 is separated upward and taken out, and as shown in FIG. 3, the flexible cushion pad 31 is covered with the flexible skin 30 as shown in FIG. A semi-finished product of S is obtained. As described above, the skin sheet material 30A is formed on the upper side of the inner wall surface 12b of the first molding surface 12 which is the undercut portion and the lower side of the overhang portion 15a of the slide member 15 before the urethane material 31A is foamed and filled. The sheet S after molding
Is the lower die body 1 even at the portion 30a corresponding to the undercut portion.
It has the desired shape as shown in the lower mold 10 composed of the sliding member 1 and the sliding member 15, and the skin sheet material 30A is not excessively locally deformed by the filling pressure, and does not become too thin or break. The sheet S thus formed
In the semi-finished product, the outer skin 30 is cut at the position indicated by the symbol Z1 to remove the unnecessary portion 30c, and the remaining edge portion is
This is completed by adhering to the peripheral portion of the back surface 31a of the first unit 1 to form a rolled-in adhesive portion 30d.

In the first embodiment shown in FIGS.
Although the wound adhesive portion 30d is formed in a later step, the modified example shown in FIGS. 4 and 5 is different from the first embodiment in that the wound adhesive portion 30d is also formed at the same time. . In this modified example, a second overhanging portion 15c for simultaneously forming the winding adhesive portion 30d is formed along the inner end of the overhanging portion 15a. This second overhang 15c
Is approximately the same as the height of the step portion 21b of the second molding surface 21 of the upper mold 20, and the heat softened skin sheet material 30 is used.
A is attracted to the first molding surface 12 and the slide member 15 is
By moving to the position, the wound adhesive portion 30d is formed, and the wound adhesive portion 30d foams the urethane material 31A to form the skin sheet material 30A and the second molding surface 2 of the upper mold 20.
By filling the space between the two, the pad is integrally adhered to the periphery of the back surface 31a of the cushion pad 31. The semi-finished product of the sheet S thus formed is as shown in FIG. 5, and if the unnecessary portion 30c is removed by cutting at the position of Z2, the finished product of the sheet S on which the winding adhesive portion 30d is formed is obtained. Obtained immediately.

Next, a second embodiment shown in FIGS. 6 to 8 will be described. As shown in FIG. 8, the panel P manufactured by this embodiment is a panel P in which the outer peripheral portion is deeply bent and a hard synthetic resin base material 31 having a substantially uniform thickness is covered with a skin 30. The panel P in FIG. 8 is also shown in an inverted state in order to match the mold apparatus. As in the first embodiment,
The mold apparatus for integral skin molding according to the present embodiment also includes a first molding die (lower die) 10 and a second molding die (upper die) 20 that can approach and separate from above from above. The mold 10 includes a lower mold body 11 and a slide member 15.

The lower mold body 11 of the second embodiment has a
The lower die body 1 of the first embodiment is the same as the first embodiment except that the groove 12c formed on the bottom surface 12a of the molding surface 12 is considerably deep, and the height of the upper surface 11a of the peripheral portion is the same inside and outside the guide groove 14.
Substantially the same as 1. The slide member 15 does not have the overhang portion 15a at the upper end, and is urged toward the first position by a plurality of springs 16d housed in a housing hole 16e formed along the bottom surface of the guide groove 14, It is substantially the same as the slide member 15 of the first embodiment except that the cylinder actuator 16 is not used.

The upper mold 20 is located at a position where the stepped portion 21b is located inside the inner wall surface 12b by the thickness of the skin sheet material 30A, and in the closest state, a predetermined gap is formed between the stepped portion 21b and the lower mold main body 11. The first embodiment is the same as the first embodiment except that a protruding portion 22 that enters the groove portion 12c of the first molding surface 12 is formed on the second molding surface 21 and a runner 23 for injecting a resin material 31A serving as the base material 31 is provided. It is substantially the same as the upper mold 20 of the embodiment.

The other structure is substantially the same as that of the first embodiment shown in FIGS. 1 to 3, and a detailed description thereof will be omitted. The skin sheet material 30A which becomes the skin 30 by being adhered to the surface of the base material 31 is substantially the same as that used in the first embodiment.

Next, a method of forming a panel P using the mold apparatus for integrally forming skin according to the second embodiment will be described with reference to FIGS. As shown in FIG. 6, when the upper die 20 is raised, the slide member 15
It has been raised to the first position by 6d. The skin sheet material 30A held by the holding frame 35 and softened by being heated by the far-infrared heater or the like is brought into contact with the contact surface 10a at the upper end of the slide member 15 as shown in FIG.
8 through the suction path 13 to apply the negative pressure from
6A and FIG. 7 (a).
As shown by a two-dot chain line in FIG.
It is adsorbed on 2. At this time, a part of the skin sheet material 30A to be the peripheral portion is moved by the sliding member 1 as shown by an arrow X1.
5, the groove 12 of the first molding surface 12
In the portion inside c, the skin sheet material 30A has an extremely large deformation rate locally, so that it cannot follow the shape of the first molding surface 12 and has a shape raised from the groove 12c as indicated by reference numeral 30b.

When the upper mold 20 is moved closer to the lower mold 10 from this state, the lower outer peripheral surface 21a of the upper mold 20 first contacts the contact surface 10a at the upper end of the slide member 15, and the spring 16
When the slide member 15 reaches the second position shown in FIG. 7B, the outer peripheral surface 21a comes into contact with the upper surface 11a of the lower die body 11 when the slide member 15 reaches the second position shown in FIG. And stop. When the slide member 15 descends to reach the second position, and the depth of the skin sheet material 30A becomes the post-molding depth, the surplus skin sheet material 30A extends along the inner wall surface 12b as shown by an arrow X2. And descend to groove 1
2c, and is brought into close contact with the groove 12c by the negative pressure from the vacuum source 18 which is continuously applied.

In this state, the injection head 25 of the reaction injection molding machine is brought into contact with the outer end opening of the runner 23 as shown by the two-dot chain line in FIG. FIG. 7 shows a synthetic resin material 31A made of a reactive material.
As shown in (c), the space between the second molding surface 21 of the upper die 20 and the skin sheet material 30A is injected and filled. The filled synthetic resin material 31A reacts rapidly and hardens, and the skin 3
When the injection head 25 is detached when the base material 31 is fixed integrally with the base member 0, the upper die 20 is raised and taken out together with the slide member 15, and as shown in FIG. A semi-finished product of the panel P covered by 30 is obtained. As described above, since the skin sheet material 30A is in close contact even in the deep groove portion 12c of the first molding surface 12 before the synthetic resin material 31A is filled, the molded panel P corresponds to the deep groove portion 12c. The portion 30a to be formed also has a desired shape as shown in the lower mold 10, and the skin sheet material 30A is not excessively locally deformed by the filling pressure and becomes too thin or breaks. In the semi-finished product of the panel P formed in this way, the runner portion 32 is cut off, and the skin 30 is cut at the position of Z1 to remove the unnecessary portion 30.
c is removed, and the remaining edge is adhered to the end face of the base material 31 to form the wound adhesive portion 30d, thereby completing the process.

The modification shown in FIGS. 9 and 10 is different from the second embodiment shown in FIGS. 6 to 8 in that the wrap-around bonding portion 30d is formed simultaneously with the formation of the panel P. I have. In this modified example, an overhang 15d similar to the overhang 15a of the first embodiment is provided on the slide member 15 in order to simultaneously form the winding adhesive 30d. The thickness of the overhang portion 15d is almost the same as the height of the step portion 21b of the second molding surface 21 of the upper mold 20, and the heated and softened skin sheet material 30A is attracted to the first molding surface 12 and slides. By moving the member 15 to the second position, the wound adhesive portion 30d is formed, and the wound adhesive portion 30d transfers the synthetic resin material 31A between the skin sheet material 30A and the second molding surface 21 of the upper mold 20. Substrate 3 by filling in space
1 is integrally bonded to the end face. The semi-finished product of the panel P thus formed is as shown in FIG. 10. If the runner portion 32 is cut off and the outer skin 30 is cut at the position indicated by the symbol Z2 to remove the unnecessary portion 30c, the winding adhesive portion 30d is obtained. Is immediately obtained.

In the above embodiment, the sheet material 30
Although a sheet material made of a synthetic resin is used as A, the present invention may also use a sheet material obtained by taking measures against inconvenience such as impregnation of a cloth material such as a woven fabric or a fabric with a molding material.

[0029]

As described above, according to the present invention, since the deformation rate of the skin sheet material is locally large, the skin sheet material can be formed from the molding material even in a portion that floats from the first molding surface only by suction. Before filling, it is in close contact with the first molding surface,
The molded synthetic resin product has the desired shape according to the molding die even in such a portion where the deformation rate is large, or the skin sheet material is locally excessively deformed by the filling pressure and becomes too thin or breaks. I do not even do.

In the case where an overhanging portion is formed at the portion where the contact surface of the slide member is formed to project inward beyond the inner wall surface of the first molding surface, the undercut portion below the overhanging portion forms the skin sheet material for the skin. Locally increases. However, as described above, the molded synthetic resin product has the desired shape as in the molding die even in such an undercut portion having a large deformation rate, or the skin sheet material is locally excessively deformed by the filling pressure. It does not become too thin or break.

When a deep groove is formed on the bottom surface close to the inner wall surface of the first forming surface, the deformation rate of the skin sheet material locally increases in the deep groove. However, as described above, the molded synthetic resin product has the desired shape as in the molding die even in such a groove portion having a large deformation rate, or the skin sheet material is locally excessively deformed by the filling pressure and becomes thin. It does not become too much or break.

According to the structure in which the slide member is reciprocated by the cylinder operating device, the slide member can be surely moved at a desired timing. Further, the slide member is biased toward the first position by the spring, and the second mold is moved to the second position against the spring when the second mold is brought into contact with the contact surface via the skin sheet material. According to the above configuration, the structure for operating the slide member can be simplified.

[Brief description of the drawings]

FIG. 1 is a first view of a mold apparatus for integrally molding a skin according to the present invention.
It is sectional drawing which shows the whole structure of embodiment.

FIG. 2 is a partial sectional view illustrating the operation of the first embodiment shown in FIG.

FIG. 3 is a cross-sectional view of a sheet manufactured by the mold apparatus for integrally molding skin according to the first embodiment.

FIG. 4 is a partial cross-sectional view showing a modification of the first embodiment.

FIG. 5 is a cross-sectional view of a sheet manufactured according to a modification of FIG.

FIG. 6 shows a second embodiment of the mold apparatus for integrally molding the skin according to the present invention.
It is sectional drawing which shows the whole structure of embodiment.

FIG. 7 is a partial sectional view illustrating the operation of the second embodiment shown in FIG.

FIG. 8 is a cross-sectional view of a sheet manufactured by the mold apparatus for integrally molding skin according to the second embodiment.

FIG. 9 is a partial sectional view showing a modification of the second embodiment.

FIG. 10 is a cross-sectional view of a sheet manufactured according to a modification of FIG. 9;

FIG. 11 is a partial cross-sectional view illustrating the operation of one example of a mold apparatus for integrally forming a skin according to a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... 1st molding die (lower die), 10a ... Contact surface, 11 ... 1st molding die main body (lower die main body), 12 ... 1st molding surface, 12a
... Bottom surface, 12b ... Inner wall surface, 12c ... Groove, 13 ... Suction path, 15 ... Slide member, 15a ... Overhang, 16 ... Cylinder actuator, 16d ... Spring, 18 ... Vacuum source,
20: second molding die (upper die), 30A: sheet material for skin.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI B29L 9:00

Claims (5)

[Claims] 1. A first molding surface including a bottom surface and an inner wall surface rising from an outer peripheral portion thereof is formed at a central portion, and the first molding surface is formed at the first molding surface.
A first molding die having a continuous contact surface formed on the upper surface of an outer peripheral portion surrounding a molding surface, and air between the first molding surface and the skin sheet material abutting on the contact surface. A vacuum source for sucking the skin sheet material onto the first molding surface by suctioning through a suction path provided in one molding die, and a skin source member provided so as to be able to approach and separate from the first molding die; A second molding die for forming a space for filling the uncured molding material between the skin material and the skin material adsorbed on the first molding surface in contact with the contact surface through the second molding die In the die apparatus, the first molding die has a first molding die main body on which the first molding surface is formed, and a tip end surface surrounding the first molding surface and serving as the contact surface. The first position where the distance between the contact surface and the bottom surface of the first molding surface is large and the second position where the distance is small.
A slide member guided and supported by the first molding die body so as to be able to reciprocate between the first molding die body and the skin member on the first molding surface when the slide member is at the first position. The unmolded molding material is filled in a state in which the slide member is at the second position by suction, and the skin integral molding die apparatus is characterized in that the mold member is filled with the uncured molding material. 2. The slide member according to claim 1, wherein the slide member has a projecting portion projecting inward beyond an inner wall surface of the first molding surface on a side on which the contact surface is formed. Mold device for integral skin molding. 3. The mold apparatus for integral skin molding according to claim 1, wherein the first molding surface has a deep groove formed on a bottom surface close to an inner wall surface thereof. 4. The mold apparatus according to claim 1, wherein the slide member is reciprocated between the first position and the second position by a cylinder operating device. 5. The second molding die which is urged toward the first position by a spring interposed between the slide member and the first molding die main body and moves toward the first molding die. 2. The metal for forming the integral skin according to claim 1, wherein the metal is moved to the second position against the spring by contacting the contact surface via the skin sheet material. 3. Mold device.