JPH02274513A - Powder-slush molded product and its molding method - Google Patents

Abstract

PURPOSE:To cause feels of desired parts of completed skin material to differ from each other, by a method wherein a single kind or a plurality of kinds of backing sheets whose qualities of the materials are different from each other are slush-molded on a part of a different-colored skin material including a joint part. CONSTITUTION:Powdery materials 37a-37c comprised of synthetic resin whose color tones are different from each other according to spheres are loaded for filling into a mold 31 where it is preheated, provided with projected lines 32a, 32b on the surface and divided into a plurality of spheres 36a-36c by possessing the projected lines 32a, 32b for its borders. Then the powdery resin is melted and stuck to the surface of the mold 31 and a plurality of surface materials 37'a 37'b, 37'c obtained by dividing and separating from each other by the projected lines 32a, 32b are formed on the surface of the mold 31. Then an auxiliary powdery resin 41 is melted and stuck to the rear of the surface materials 37'a-37'c and a backing material 41 connecting a plurality of the surface materials 37'a-37'c with each other is molded.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a powder slush molded product and a skin material that is used for adhering to the surface of an instrument panel installed in a car, for example, by molding it by a slush molding method. This relates to its molding method.

(Prior Art) For example, there is a conventional example of a skin body used in an automobile instrument panel as shown in FIG. This has a skin 3 attached to the surface of an instrument panel core material 1 via a foam cushioning material 2, but this skin 3 can be colored with a skin 3a of a desired color depending on the taste. It is a two-tone skin body consisting of the skin 3a and the skin 3b of a different color. As a prior example of integrally molding such a two-tone skin body 3 by the slush molding method, there are moldings as shown in FIGS. 6A, B, and C. To specifically describe this prior example, reference numeral 11 is a mold for slush molding, and the mold surface 12 of this mold 11 is formed with a protrusion 13 for division, and the first division part 14 and a second partition 15. 16 is a powder storage box for slush molding, and this storage box 1
6 has a partition 17 that is joined to the edge of the protrusion 13, and this partition lf divides the inside of the storage box 16 into a first storage section 18 and a second storage section 19. It is something that Reference numeral 20 indicates a powder storage box without a partition, in which first the first storage section 1 of the powder storage section 16 is
Powders 21 and 22 of different colors are accommodated in the 8th and second accommodating portions 19, and then the mold 11 heated to a predetermined temperature is placed on the powder accommodating box 16 (6th
(Refer to FIG. Powder 22 is welded to the surface, and each sheet 21° and 2
2° (see FIG. 6(B)) Next, a powder storage box 20 containing another powder 23 is prepared, and the sheets 21' and 22' are glued onto this powder storage box 20. The heating mold 11 is attached as it is (Fig. 6 (C)
), after the powder storage box 20 and the mold 1
1 is reversed, and the surfaces of sheets 21° and 22° are lined with powder 23, and sheet 23° is welded and layered.

Thus, the slush-formed sheets 21°, 22°, 2
By peeling the 3° integrally molded product from the mold 11, the desired multicolored skin body is molded.

(Problem B to be solved by the invention) However, in the case of the multi-colored skin body constructed using such prior art; Since it has a double-layer structure that can be worn and removed, there have been problems in that the multicolored skin material feels hard to the touch and the quality is degraded.

[Means for Solving the Problems] The present invention has been made by focusing on such conventional problems, and it is possible to slash the joints of different color skin materials with a plurality of types of backing sheets made of different materials. To provide a powder slush molded product that can be molded to make the finished skin material different in feel at desired parts, and a method for molding the same.

The present invention will be explained in detail below based on the embodiments shown in FIGS. 1 to 4.

[Example I]

In FIGS. 1 and 2, 31 is a mold for slush molding, and this mold 31 can be heated to a desired temperature for melting the resin powder by a heating means (not shown). be. Inside the mold 31, small protrusions 32a, 32b are formed, and the molding chambers 33a, 33b, 33c are divided into respective molding chambers 33a, 33b, 33c. 34
The first step is to put the thermoplastic resin powder that is to form the skin.
This is a glue reservoir tank, and inside the first glue reservoir tank 34, there are partitions 35a that come into contact with the small protrusions 32a and 32b.

35b are formed respectively, and the respective powder storage portions 3
6a, 36b, and 36c are formed, and thermoplastic resin powders 37a, 37b, and 37c of different colors are accommodated in these powder accommodating portions 38a, 36b, and Hc. 3B is a second glue reservoir tank, and this second
A storage section 4o'A is formed in the glue developer tank 38 and surrounded by a partition 39, and a powder 41 for lining is stored in this storage section 40.

Next, talking about the molding process of the skin material, a unique powder 37 is placed in the opening of the mold 31 which is heated and maintained at an appropriate temperature.
First glue reservoir tank 3 containing a, 37b, and 37c
By aligning the openings of No. 4 and reversing them, each powder 37a is applied to the mold surface of the mold 31.
, 37b, 37c are welded to the skin 37''a, 37
°b, 37'b, 37'c are formed.

The molding process up to now is the same as the molding of the prior art example. Next, the first adhesive reservoir tank 34 and the second adhesive reservoir tank 38 containing the lining powder 41 are exchanged, and each time the same reversal operation is performed as described above, the lining powder 41 is applied to the respective outer skins 37'. a and 37゛b
and 37°C and 37°C, and as a result, the backing layer 41' is integrally formed.

Therefore, according to this embodiment, the slush-molded skins 37°a and 37°b, 37°b and 37'b, 3
Lining layer 4 is applied to the seam of 7'c and the entire back surface of skin 37'b.
1' is formed, so the epidermis 37'a, :17"b, 3
The feel of each temperature can be changed by 7°C.

(Example II) In FIGS. 3 and 4, 42 is a mold for slush molding, and this mold 42 is heated by a heating element (not shown) to a desired temperature for melting the resin powder. It is something that can be done. A small protrusion 43 is formed inside the mold 42 to divide the molding chambers 44a and 44b into respective molding chambers 44a and 44b. Reference numeral 45 denotes a first glue reservoir tank into which thermoplastic resin powder is to be placed to form the skin, and a partition 46 is formed inside the first glue reservoir tank 45 to come into contact with the small protrusion 43. Powder storage portions 47a and 47b are formed, and thermoplastic resin powders 48a and 48b of different colors are stored in these powder storage portions 47δ and 48b, respectively.

Reference numeral 49 denotes a second reservoir tank, and the inside of this reservoir tank 49 is formed with respective accommodating parts 51a and 51b that are partitioned by a partition 50. A non-foaming powder 52a and a foaming powder 52b are accommodated therein.

Next, regarding the molding process, the opening of the first glue reservoir tank 45 containing powders 47a and 47b of a different color is aligned with the opening of the mold 42 which is heated and held, and the openings of the first glue reservoir tank 45 are reversed. Accordingly, the mold 42
A skin 53a with respective powders 47a and 47b welded to the mold surface.

53a and 53b are formed. The molding process up to now is the same as the molding according to the prior art example. Next, the first glue reservoir tank 45 and each lining powder 51
By replacing the reservoir tank 49 of S2 containing a and 51b and performing the same reversal operation as described above, one of the backing powders 51a is applied to almost the entire back surface of the outer skin 53a.
In addition, the other backing powder 51b is applied to the skins 53a and 53.
b, and is roughly welded to the entire back surface of the outer skin 53b, and different types of backing layers 54a and 54b are formed integrally with the outer skin.

Therefore, according to this embodiment, the different backing layers 54a, 54b are integrally formed on the back surface of the slush-molded different-colored outer skins 53a, 53b, so that the molded outer skin has a good feel such as flexibility. This has the effect of providing a slush molded product that can be partially changed.

(Effects of the Invention) As described above, the present invention provides a method that is heated in advance and has protrusions 3 on the surface.
2a, 32b or 43 are provided, and this protrusion 32a,
A mold 31 or 42 which is divided into a plurality of regions with 32b or 43 as a boundary is filled with a powder material made of a synthetic resin whose color tone differs depending on the region, and the powdered resin is melted and adhered to the surface of the mold. and a plurality of skin materials 37'a, 37°b, 37'e or 44 separated by the protrusions.
a, 44b, and after the molding, a backing material 41' or 54a, 54b that connects the plurality of skin materials by melting and adhering the auxiliary powder resin 41 or 51a, 51b to the back surface of the skin material.
According to this powder slush molded product and its molding method, a backing material having a desired flexibility can be layered on a desired part of the back surface of a uniquely colored skin to be slush molded. It has the effect of changing the feel in a desired part of the body.

[Brief explanation of drawings]

1 (A), (B), and (C) are explanatory diagrams showing a first embodiment of the powder slush molded product manufacturing process according to the present invention, FIG. 2 is an enlarged cross-sectional view of the same essential parts, and FIG. figure(
^), (B), (C) are explanatory diagrams showing the second embodiment of the present invention, FIG. 4 is an enlarged sectional view of the main parts of the same, and N
Figure 5 is a perspective view showing how the skin material is used, Figure 6 (A)
, (B) and (C) are explanatory diagrams of conventional examples. 31.42... Mold 32 a, 32 b,
43 ... small protrusions 33a, 33b, 33c, 44a
, 44b --- Molding chamber 34.45... First glue reservoir tank 35a, 35b, 46... Inner partition 36
a, 36b, 36c, 47a, 47b...Powder storage section 37a, 37b, 37c, 48a, 48b -
・Thermoplastic resin powder 38.49...Second glue par tank 39.50...Partition 40, SLa
, Slb...accommodating section 41, 52a, S2b...
Paradart diagram for lining] 7 ↓

Claims (1)

[Scope of Claims] 1. Preheated and provided with protrusions (32a, 32b or 43) on the surface, the protrusions (32a, 32b or 43)
3) A mold (31 or 42) divided into a plurality of regions with the border as a boundary is filled with a powder material made of a synthetic resin whose color tone differs depending on the region, and the powdered resin is melted and adhered to the surface of the mold. Then, a plurality of skin materials (37'a, 3
7'b, 37'c or 44a, 44b), and after the molding, sub-powder resin (41 or 51a) is applied to the back surface of the skin material.
, 51b) to form a backing material (41' is 54a, 54b) that connects the plurality of skin materials. 2. A mold (32a, 32b, or 43) provided on the surface and divided into a plurality of regions using the ridges as boundaries.
31 or 42), a plurality of skin materials (37'a, 37'b, 37
'c or 44a, 44b) is formed, and the auxiliary powder material is poured onto the skin material and heated to form a backing material (41' or 54a, 54).
A powder molded product characterized in that the plurality of skin materials are connected by the backing material by forming b).