JP2783135B2 - Integral molding method and integral mold for skin material and pad material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integral molding method and an integral molding die for a skin material and a pad material. More specifically, the present invention relates to an integral molding method. The present invention relates to an integral molding method and an integral molding die for arranging and injecting a stock solution of a foamed synthetic resin into the foam molding die and foaming the pad material integrally with the skin material.

[0002]

2. Description of the Related Art Conventionally, a cushion body of a seat of a vehicle or the like is formed by covering a pad material with a skin material. In this case, the skin material and the pad material are formed independently. Was common. In order to omit such an assembling operation, a method of arranging a skin material on a foaming mold and integrally joining the skin material when foaming the pad material has been adopted.

In recent years, the outer shape of a cushion member of a seat often has a relatively large curved portion such as a side support portion formed on an outer portion, and a skin material is formed in a foaming mold corresponding to the shape of the seat. It is difficult to arrange in the desired shape, it is difficult to obtain the desired shape, and in order to prevent the displacement of the skin material, the end of the skin material is pinned to the foaming mold,
Or taped.

[0004]

It is difficult to dispose a skin material in a foaming mold in a state in which the skin material is not displaced and has no wrinkles or the like, corresponding to a complicated sheet shape. If the end of the skin material is pinned or taped to the foaming mold to prevent displacement, workability and productivity cannot be improved. Are strongly bonded to each other, so that decomposition was difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the displacement of the skin material, to perform the work of arranging the skin material easily and quickly, to improve workability and productivity, and to improve the workability of the skin material. An object of the present invention is to provide an integral molding method and an integral molding die of a skin material and a pad material, which can easily peel a pad material, are excellent in recyclability, and are excellent in workability and economy.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a method of integrally forming a skin material and a pad material according to the first aspect of the present invention comprises a lower mold and an upper mold. A skin material is provided in a lower mold of a foaming mold having: and a stock solution of a foam synthetic resin is injected into the foaming mold, and the pad material is foamed integrally with the skin material. In the integral molding method, the lower mold of the foaming mold has a first mold corresponding to a main portion of a skin material and a second mold corresponding to a side portion of a pad material. The first mold comprises a skin material setting jig and a base on which the skin material setting jig can be removably attached. The base is attached to the up-and-down elevating means. Second by vertical up / down means
The first mold is lifted up and down with respect to the mold, and the skin material setting jig is removed from the base in a state where the first mold is raised,
The main part of the skin material is positioned and disposed on the skin material setting jig, the side part of the skin material is positioned on the side part of the skin material setting jig, and then the main part of the skin material is mounted on the surface. The provided skin material setting jig is mounted on the base, and then the first mold is lowered to match the first mold and the second mold, and the side portions of the skin material are combined with the first mold. The method is characterized in that a stock solution of a foamed synthetic resin is injected in a state where the stock solution is led out from the mold matching portion of the second mold.

According to a second aspect of the present invention, there is provided an integrated mold of a skin material and a pad material, wherein the skin material is disposed on a lower mold of a foam mold having a lower mold and an upper mold. An undiluted solution of a foamed synthetic resin is injected into the inside, and the pad material is foamed integrally with the skin material. A first mold and a second mold corresponding to a side portion of the pad material;
The first mold of the lower mold of the foaming mold comprises a skin material setting jig and a base on which the skin material setting jig can be detachably attached, and the base is attached to the vertical lifting / lowering means. The first mold is vertically movable with respect to the second mold by means of up-and-down elevating means, and the second mold is formed into a plurality of divided molds slidable inward and outward by a slide mechanism; Is moved outward and the base of the first mold is raised, and a skin material setting jig provided with a main portion of the skin material is mounted on the base. Is lowered, and the second mold is moved inward to move the side of the skin material from the mating portion of the first mold and the second mold at the time of matching the first mold and the second mold. It is characterized in that the part can be led out.

[0008]

According to the integrated molding method of the skin material and the pad material according to the first aspect of the present invention, the lower mold of the foam molding die is the first mold corresponding to the main portion of the skin material, and the pad material is formed of the lower mold. A second mold corresponding to the side portion, wherein the first mold of the lower mold of the foam molding mold has a skin material setting jig and a base to which the skin material setting jig can be detachably attached. Therefore, the main part of the skin material is arranged in the skin material setting jig, and then, with the first mold raised, the skin material setting jig in which the main part of the skin material is arranged is provided. It can be mounted on the base, preventing the displacement of the skin material, making it possible to obtain the desired shape, and, of course, simplifying and arranging the skin material quickly and improving workability and productivity. Can be done.

Further, since the first mold is lowered to match the first mold with the second mold, and then the stock solution of the foamed synthetic resin is injected, the side portions of the pad material and the skin material are removed. The side portion is in a non-joined state, the skin material and the pad material can be easily separated, and the recyclability is excellent, and the workability and economic efficiency can be improved.

[0010] According to the integrated molding die of the skin material and the pad material according to the second aspect of the present invention, the lower mold of the foam molding die is the first mold corresponding to the main part of the skin material, and the pad material is formed of the first mold. A second mold corresponding to the side portion, wherein the first mold of the lower mold comprises a skin material setting jig and a base to which the skin material setting jig can be detachably attached; A base is attached to the up-and-down elevating means, the first mold is vertically movable with respect to the second mold by the up-and-down elevating means, and the second mold is slidable inward and outward by a slide mechanism. Formed in a split mold, move the second mold outward, raise the base of the first mold, and remove the skin set jig from the base to the skin set jig. The main part of the skin material can be arranged, and the skin material is set in advance by using a plurality of the skin material setting jigs. Can be left attached to the jig, the arrangement 設作 industry skin material easily and quickly done, it is possible to prevent displacement of the skin material, it is possible to improve the workability and productivity.

Further, the first mold and the second mold are matched with each other,
Next, when a stock solution of foam synthetic resin is injected and the pad material is foam-formed, the main portion of the pad material and the main portion of the skin material are in a joined state, and the side portion of the pad material and the side portion of the skin material are non-contact. It is possible to obtain an integrally molded product in the joined state,
The skin material and the pad material can be easily peeled off, and the recyclability is excellent, and the workability and economic efficiency can be improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An integral molding method and an integral mold for a skin material and a pad material according to the present invention will be described below in detail with reference to the drawings. 1 to 10 schematically show an embodiment of the method of the present invention, respectively. FIGS. 1 and 2 show a foaming mold 11 for carrying out the method of the present invention. This foaming mold 11 includes a lower mold 12 and an upper mold 13.

The lower mold 12 is a main part 21 of a skin material 21.
a first die 15 corresponding to the shape of a, and a second die 16 corresponding to the shape of the front and rear, left and right side portions 32b of the pad material 32 excluding the main portion 32a of the pad material 32,
The first mold 15 of the lower mold 12 is a skin material setting jig 15a.
And a base 15b to which the skin material setting jig 15a can be detachably attached. The base 15b is moved up and down by means of up-and-down elevating means 18 such as a cylinder mechanism.
6 is formed so as to be movable up and down.

The second mold 16 is formed of a plurality of divided molds which can slide inward and outward by a slide mechanism 19 such as a cylinder mechanism, and in this embodiment, four divided molds of front, rear, left and right. The second mold 16 is moved outward by the slide mechanism 19 and the first mold 15 is raised, and the skin material setting jig 15a is removed from the base 15b with the skin material setting jig. The main part 21a of the skin material 21 can be disposed on the first mold 15 of the lower mold 12 in the tool 15a.

The skin material 21 disposed on the lower mold 12 is shown in FIG.
As shown in the figure, the skin 22 on the front side and the wadding 2 on the back side
The main part 21a of the skin material 21 is positioned on the first die 15 of the lower die 12. The side portion 21b of the skin material 21 is a pad material 32.
During the foam molding, the lower mold 12 is guided to the non-molding surface of the first mold 15 on the side surface side. Note that the skin material 21 is not limited to the one formed of the surface skin 22 on the front side and the wadding 23 on the back side, and may be a single sheet.

As shown in FIG. 3, the skin material 21 is a sewing portion 21.
c, and the sewing portion 21c is a skin material setting jig 15a.
Is positioned on the shape forming portion 15c formed on the surface of the first member. The main part 21a of the skin material 21 is positioned on the shape setting part 15c of the skin material setting jig 15a, and the main part 21 of the skin material 21 is
a can be pressed against the skin material setting jig 15a.

The first die 15 and the second die 1 of the lower die 12
6 is housed in an outer box mold 29, and an air supply device 29b is attached to the outer box mold 29 via an air supply pipe 29a. The air supply device 29b is operated to supply air into the outer box mold 29. By supplying and adjusting the pressure inside the outer box mold 29, the pressure inside the foamed mold 11 that has been clamped can be adjusted via a minute gap in the mold mating surface.

Next, the method of integrally forming the skin material and the pad material according to the present invention will be described in more detail with reference to the drawings. As shown in FIG. 1, the second mold 16 is moved outward by the slide mechanism 19, and the first mold 15 is raised by the up-and-down elevating means 18, and the skin material setting jig 15 is moved from the base 15b.
Remove a.

As shown in FIG. 3, the sewing portion 21c of the main portion 21a of the skin material 21 is placed and positioned on the shaping portion 15c on the surface of the skin material setting jig 15a. The shape is formed by pressing the main portion 21a of the skin material 21. The side portion 21b of the skin material 21 is temporarily fixed to a side surface or a lower end of the non-molded surface of the skin material setting jig 15a by a magnet 15d, a clip, or the like.

After the main portion 21a of the skin material 21 is positioned and disposed on the shaping portion 15c on the surface of the skin material setting jig 15a, the skin material setting jig 15a is moved to the position shown in FIG.
Is mounted on the base 15b as shown in FIG. Next, as shown in FIG. 5, the first mold 15 is lowered by the up-and-down elevating means 18, and the second mold 16 is moved inward by the slide mechanism 19, so that the first mold 15 and the second mold 16 To match.

At this time, the side portion 21b of the skin material 21 is suspended downward from a mold matching portion between the first mold 15 and the second mold 16 of the lower mold 12 and is led out to the outside. Of the side portion 21b of the first mold 15 or the second mold 1
6 and the upper end side of the side portion 21b of the skin material 21 when the first mold 15 and the second mold 16 are mated.
It is sandwiched between the first mold 15 and the second mold 16.

Next, as shown in FIG. 6, the holding jig 27 is removed from the main portion 21a of the skin material 21, and a stock solution 31 of a foamed synthetic resin is poured into the lower mold 12, and the upper mold 13 is moved to the lower mold 12. The pad material 32 integrated with the skin material 21 as shown in FIGS. 7 to 9 can be obtained by performing mold matching and foam molding of the pad material 32.

When the main liquid 21 of the foam synthetic resin is injected into the main portion 21a of the skin material 21, the wadding 23 of the main portion 21a of the skin material 21 may be impregnated with the raw liquid 31 of the foam synthetic resin to harden the skin material 21. For this reason, the air supply device 29b is operated to supply air into the outer box mold 29, and the pressure in the outer box mold 29 is adjusted to reduce the pressure inside the foamed mold 11 that has been clamped. The adjustment is performed via a minute gap between the mold mating surface of the first mold 15 and the second mold 16 of the mold 12 and the mold mating surface of the second mold 16 composed of a plurality of split molds.

By increasing the pressure inside the outer mold 29 and increasing the pressure inside the foamed molding die 11 that has been clamped, the wadding 23 contains the undiluted liquid 3 of the foamed synthetic resin.
1 can be made thinner. As an example, the pressure is 0.6 kg / cm ^{2 to} 1.0.
kg / cm ² . By increasing the pressure in the outer box mold 29, the leakage of the stock solution 31 of the foamed synthetic resin from the mold mating surface can be prevented.

The relationship between the pressure in the outer box mold 29 and the thickness of the impregnated layer is that the thickness of the wadding 23 of the skin material 21 is 10 m.
m, the thickness of the impregnated layer was 1.5 mm at a pressure of 1.0 kg / cm ² . Table 1 shows the relationship between the pressure in the outer box mold 29 and the thickness of the impregnated layer. Further, in order to keep the pressure inside the foaming mold 11 constant when the stock solution 31 of the foamed synthetic resin is foamed, it is preferable to increase the pressure by 0.1 kg / cm ² per second.

Table 1

Next, the upper mold 13 is opened, and the skin material 21 is opened.
The pad material 32 integral with the main portion 21a of the
9, as shown in FIG. 9, an integral molded product 30 in which the main portion 21 a of the skin material 21 is integrated with the pad material 32 and the side portion 21 b is not joined to the side portion 32 b of the pad material 32 is obtained. By attaching the integrally molded product 30 to the seat frame 35 or the like and terminating the side portions 21b of the skin material 21, a desired cushion body 40 such as a seat can be obtained as shown in FIG.

[0028]

The above is the method and structure of one embodiment of the integral molding method and the integral molding die of the skin material and the pad material according to the present invention. The skin material and the pad according to claim 1 of the present invention. According to the integral molding method with the material, the lower mold of the foam molding mold has the first mold corresponding to the main portion of the skin material and the second mold corresponding to the side portion of the pad material, The first lower mold of the molding die includes a skin material setting jig and a base to which the skin material setting jig can be detachably attached, and the base is attached to the vertical lifting / lowering means. The first mold is vertically movable with respect to the second mold by means of up-and-down elevating means. With the first mold raised, the skin material setting jig is removed from the base, and the skin material setting jig is removed. The main part of the skin material is positioned and arranged on the tool, and the side part of the skin material is set to the side part of the skin material setting jig. Then, a skin material setting jig having the main portion of the skin material disposed on the surface is mounted on the base, and then the first mold is lowered to form the first mold and the second mold. The raw material of the foamed synthetic resin is injected in a state where the side portions of the skin material are led out from the mold matching portions of the first mold and the second mold, so that the displacement of the skin material can be prevented. In addition, the desired shape can be obtained, and the work of arranging the skin material can be easily and quickly performed, and the workability and productivity can be improved.

Further, the first mold is lowered so that the first mold and the second mold are matched, and the side portion of the skin material is located outside from the mold-matching portion of the first mold and the second mold. Since the undiluted solution of the foamed synthetic resin is injected in the drawn-out state, the side portion of the pad material and the side portion of the skin material are in a non-joined state, and the side portion of the skin material and the side portion of the pad material are easily separated. It has excellent recyclability and can improve workability and economic efficiency.

According to the integrated mold of the skin material and the pad material according to the second aspect of the present invention, the lower mold of the foam molding mold is the first mold corresponding to the main portion of the skin material, and the pad material is formed of the lower mold. A second mold corresponding to the side portion, wherein the first mold of the lower mold of the foam molding mold has a skin material setting jig and a base to which the skin material setting jig can be detachably attached. The base is attached to the up-and-down elevating means, the first mold is vertically movable with respect to the second mold by the up-and-down elevating means, and the second mold is slid inward and outward by a slide mechanism. Formed in a plurality of movable molds, moving the second mold outward,
The base of the first mold can be raised, and a skin material setting jig provided with a main portion of the skin material is mounted on the base, and then the first mold is lowered, and the second mold is lowered. Is moved inward so that the side portion of the skin material can be led out from the mating portion of the first mold and the second mold when the first mold and the second mold are matched. As a result, the operation of arranging the skin material can be performed simply and quickly, the displacement of the skin material can be prevented, the desired shape can be easily formed, and the workability and productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an integrated mold of a skin material and a pad material according to the present invention.

FIG. 2 is a plan view showing a lower mold and an outer box mold in an integrated mold of a skin material and a pad material according to the present invention.

FIG. 3 is a cross-sectional view illustrating one step of a method of integrally forming a skin material and a pad material according to the present invention, wherein the skin material is disposed on a skin material set jig of a first lower mold. FIG.

FIG. 4 is a cross-sectional view illustrating one step of the method of integrally forming the skin material and the pad material according to the present invention, in which a skin material setting jig is mounted on a base.

FIG. 5 is a view for explaining one step of the method of integrally forming the skin material and the pad material according to the present invention, wherein the first and second lower molds are formed.
Sectional drawing of the state which matched the type | mold of FIG.

FIG. 6 is a cross-sectional view for explaining one step of the method of integrally forming the skin material and the pad material according to the present invention and showing a state where a stock solution of a foamed synthetic resin is injected into a lower mold of a foaming mold.

FIG. 7 is a cross-sectional view illustrating one step of the method of integrally forming the skin material and the pad material according to the present invention, and showing a state in which the pad material is integrally foamed with the skin material.

FIG. 8 is a cross-sectional view illustrating one step of the method of integrally forming the skin material and the pad material according to the present invention, in which the foaming mold is opened.

FIG. 9 is a sectional view of an integrally molded product formed by an integral molding method of a skin material and a pad material according to the present invention.

FIG. 10 is a sectional view of a cushion body formed by an integral molding method of a skin material and a pad material according to the present invention.

[Explanation of symbols]

 Reference Signs List 11 foam molding die 12 lower die 13 upper die 15 first die 15a skin material setting jig 15b base 16 second die 18 up and down elevating means 19 slide mechanism 21 skin material 21a main part 21b side part 21c sewing part 22 skin Reference Signs List 23 wading 27 holding jig 29 outer box mold 29 29a air supply pipe 29b air supply device 30 integrally molded product 31 stock solution of foamed synthetic resin 32 pad material 32a pad material main portion 32b pad material side portion

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI B68G 7/06 B68G 7/06 A // B29K 105: 04 B29L 31:58 (58) Fields surveyed (Int.Cl. ⁶ , (DB name) B29C 39/00-39/44 B29C 33/00-33/76 B68G 7/06 B29K 105: 04 B29L 31:58

Claims (2)

(57) [Claims] 1. A skin material is provided on a lower mold of a foaming mold having a lower mold and an upper mold, and a stock solution of a foamed synthetic resin is injected into the foaming mold to integrate the pad material with the skin material. In a method of integrally molding a skin material and a pad material to be foam-molded, a lower mold of the foam molding mold includes a first mold corresponding to a main portion of the skin material,
A second mold corresponding to the side portion of the pad material, wherein a first mold of the lower mold of the foam molding mold has a skin material setting jig and a detachable mounting of the skin material setting jig. A state in which the first die is lifted up and down with respect to the second die by the vertical lifting means, and the first die is raised. Then, the skin material setting jig is removed from the base, the main part of the skin material is positioned and disposed on the skin material setting jig, and the side portion of the skin material is set to the side of the skin material setting jig. Then, a skin material setting jig in which the main part of the skin material is disposed on the surface is mounted on the base, and then the first mold is lowered to form the first mold and the second mold. Foamed synthetic resin in a state where the side portions of the skin material are led out from the mold matching portion of the first mold and the second mold. Integrally molding method of the surface material and pad material, characterized by injecting the stock solution. 2. A skin material is provided on a lower mold of a foaming mold having a lower mold and an upper mold, a stock solution of a foamed synthetic resin is injected into the foaming mold, and the pad material is integrated with the skin material. In an integrated mold of a skin material and a pad material to be foam-molded, a lower mold of the foam mold is a first mold corresponding to a main portion of the skin material and a second mold corresponding to a side portion of the pad material. A first mold of the lower mold of the foaming mold comprises a skin material setting jig and a base on which the skin material setting jig can be detachably attached, and the base is vertically moved up and down Attached to the means, the first
Is movable up and down with respect to the second mold by means of up-and-down elevating means. The second mold is formed into a plurality of split molds slidable inward and outward by a slide mechanism. The jig is moved outward and the base of the first mold can be raised, and a skin material set jig provided with a main portion of the skin material is mounted on the base, and then the first mold is mounted. Then, the second mold is moved inward, and when the first mold and the second mold are matched, the side portion of the skin material is externally moved from the mold-matching portion between the first mold and the second mold. An integrated mold of a skin material and a pad material, wherein the mold material can be led out.