JPH06143309A - Powder slush molding method for skin material and powder slush mold - Google Patents
Powder slush molding method for skin material and powder slush moldInfo
- Publication number
- JPH06143309A JPH06143309A JP4300871A JP30087192A JPH06143309A JP H06143309 A JPH06143309 A JP H06143309A JP 4300871 A JP4300871 A JP 4300871A JP 30087192 A JP30087192 A JP 30087192A JP H06143309 A JPH06143309 A JP H06143309A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- skin material
- powder slush
- molding die
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/18—Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C2033/0094—Means for masking a part of the moulding surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
(57)【要約】
【目的】 表皮材をパウダスラッシュ成形する際に、樹
脂パウダの無駄な消費を防止する。
【構成】 内部に樹脂パウダＰを収納したパウダボック
ス５の上部に重ね合わされる成形金型６のシェル体８の
内面に、製品の余肉部や開口部に対応してテフロン樹脂
等で形成した断熱部材１２を貼付する。成形金型６を反
転軸１１回りに反転させ、パウダボックス５内の樹脂パ
ウダＰを加熱したシェル体８の内面に付着溶融させて表
皮材を成形する際に、前記断熱部材１２に付着した樹脂
パウダＰは溶融しないため、製品の不要部分が無駄に成
形されることが無い。
(57) [Abstract] [Purpose] To prevent wasteful consumption of resin powder during powder slush molding of skin materials. [Structure] On the inner surface of a shell body 8 of a molding die 6 which is superposed on an upper portion of a powder box 5 which contains a resin powder P therein, the shell body 8 is made of Teflon resin or the like in correspondence with a surplus portion or an opening of a product The heat insulating member 12 is attached. The resin attached to the heat insulating member 12 when the molding die 6 is inverted around the inversion axis 11 and the resin powder P in the powder box 5 is attached and melted on the inner surface of the heated shell body 8 to form the skin material. Since the powder P does not melt, unnecessary parts of the product are not wastefully molded.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、加熱した成形金型の内
面に樹脂パウダを付着溶融させて表皮材を成形する表皮
材のパウダスラッシュ成形方法及びパウダスラッシュ成
形金型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder slush molding method for a skin material and a powder slush molding die for molding a skin material by adhering and melting a resin powder on the inner surface of a heated molding die.
【０００２】[0002]
【従来の技術】従来、かかる表皮材のパウダスラッシュ
成形方法及びパウダスラッシュ成形金型として、特公平
２−３９３６９号公報に記載されたものが公知である。2. Description of the Related Art Conventionally, as a powder slush molding method and a powder slush molding die for such a skin material, one described in Japanese Patent Publication No. 2-39369 is known.
【０００３】[0003]
【発明が解決しようとする課題】ところで、パウダスラ
ッシュ成形された表皮材の外周には不要な余肉部が一体
に成形されているため、成形金型から取り出した表皮材
から前記余肉部を切断除去する必要がある。また、表皮
材には各種部品を装着するための開口部が形成される場
合があるが、この開口部を形成するために表皮材の一部
を切断除去する必要がある。By the way, since the unnecessary excess thickness portion is integrally formed on the outer periphery of the powder slush molded skin material, the excess thickness portion is removed from the skin material taken out from the molding die. Needs to be cut off. Further, an opening for mounting various parts may be formed in the skin material, but it is necessary to cut and remove a part of the skin material to form the opening.
【０００４】しかしながら、従来より行われているパウ
ダスラッシュ成形では、前記余肉部等の非製品部分が必
ず製品部分と一体に成形されてしまうため、樹脂パウダ
が無駄になってコストアップの要因となる問題があっ
た。However, in the powder slush molding which has been conventionally performed, the non-product portion such as the surplus portion is always molded integrally with the product portion, which wastes the resin powder and causes a cost increase. There was a problem.
【０００５】本発明は前述の事情に鑑みてなされたもの
で、パウダスラッシュ成形を行う際に不要な非製品部分
が一体に成形されることを防止して、樹脂パウダの消費
量を削減することを目的とする。The present invention has been made in view of the above circumstances, and it is possible to prevent unnecessary non-product parts from being integrally molded when performing powder slush molding, thereby reducing the consumption of resin powder. With the goal.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、加熱した成形金型の内面に樹脂パウダを
付着溶融させて表皮材を成形する表皮材のパウダスラッ
シュ成形方法において、前記成形金型の内面の非製品部
分に断熱層を形成し、パウダスラッシュ成形時に前記断
熱層に付着した樹脂パウダの溶融を抑制することを第１
の特徴とする。In order to achieve the above object, the present invention is a powder slush molding method for a skin material, wherein a resin powder is adhered and melted on the inner surface of a heated molding die to form a skin material, First, a heat insulating layer is formed on a non-product portion of the inner surface of the molding die to suppress melting of the resin powder adhered to the heat insulating layer during powder slush molding.
It is a feature of.
【０００７】また本発明は、加熱した成形金型の内面に
樹脂パウダを付着溶融させて表皮材を成形する表皮材の
パウダスラッシュ成形金型において、前記成形金型の内
面の非製品部分に、耐熱性を有する非金属材料で形成し
た断熱部材を固着したことを第２の特徴とする。Further, the present invention is a powder slush molding die for a skin material, wherein a resin powder is adhered to and melted on the inner surface of a heated molding die to form a skin material, in a non-product portion of the inner surface of the molding die. The second feature is that a heat insulating member formed of a non-metallic material having heat resistance is fixed.
【０００８】[0008]
【実施例】以下、図面に基づいて本発明の実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】図１〜図９は本発明の一実施例を示すもの
で、図１は自動車のインストルメントパネルの正面図、
図２は図１の２−２線拡大断面図、図３はパウダスラッ
シュ成形装置の断面図、図４は図３の４−４線矢視図、
図５は図４の５部拡大図、図６は図５の６−６線断面
図、図７〜図９は作用の説明図である。1 to 9 show an embodiment of the present invention. FIG. 1 is a front view of an instrument panel of an automobile.
2 is an enlarged sectional view taken along line 2-2 of FIG. 1, FIG. 3 is a sectional view of the powder slush molding apparatus, FIG. 4 is a sectional view taken along line 4-4 of FIG.
5 is an enlarged view of part 5 in FIG. 4, FIG. 6 is a sectional view taken along line 6-6 of FIG. 5, and FIGS. 7 to 9 are explanatory views of the operation.
【００１０】図１及び図２に示すように、自動車のイン
ストルメントパネルＷはパウダスラッシュ成形により製
造される外側の表皮材１を備え、その内側にはウレタン
材２及び芯材３が順次積層される。インストルメントパ
ネルＷにはメーター装着用の開口部Ｈ1 、オーディオ装
置装着用の開口部Ｈ2 、アッシュトレー装着用の開口部
Ｈ3 及びグローブボックス装着用の開口部Ｈ4 が形成さ
れており、更にインストルメントパネルＷの外周は所定
の形状にトリミングされている。As shown in FIGS. 1 and 2, an automobile instrument panel W is provided with an outer skin material 1 manufactured by powder slush molding, and a urethane material 2 and a core material 3 are sequentially laminated inside the outer skin material 1. It The instrument panel W has an opening H 1 for mounting a meter, an opening H 2 for mounting an audio device, an opening H 3 for mounting an ash tray, and an opening H 4 for mounting a glove box, Further, the outer periphery of the instrument panel W is trimmed into a predetermined shape.
【００１１】図３に示すように、パウダスラッシュ成形
装置４は、ＰＶＣ等の合成樹脂よりなるパウダＰを内部
に収納したパウダボックス５と、このパウダボックス５
に重ね合わされる成形金型６とを備える。成形金型６
は、ニッケルや銅から電鋳法で製作されて内面に成形用
キャビティ７を有するシェル体８と、このシェル体８の
外周部を保持する保持フレーム９と、この保持フレーム
９に設けられた複数の支持部材１０とを備える。各支持
部材１０はネジで突出量を調整し得る支持脚１０ 1 を備
え、この支持脚１０1 の先端でシェル体８の外表面を支
持することにより、後述するパウダスラッシュ成形装置
４の反転時に、パウダＰの重量によるシェル体８の変形
を防止する。このように構成されたパウダスラッシュ成
形装置４は、反転軸１１を中心として、パウダボックス
５が下になる図３の姿勢と成形金型６が下になる図７の
姿勢との間を、図示せぬ駆動源によって反転駆動され
る。As shown in FIG. 3, powder slush molding
The device 4 has a powder P made of a synthetic resin such as PVC inside.
And the powder box 5 stored in
And a molding die 6 to be superposed on. Mold 6
Is made from nickel or copper by electroforming and used for molding on the inner surface
A shell body 8 having a cavity 7 and the shell body 8
Holding frame 9 for holding the outer peripheral portion, and this holding frame
And a plurality of supporting members 10 provided on the base plate 9. Each support
The member 10 is a support leg 10 whose amount of protrusion can be adjusted with a screw. 1Equipped
Eh, this support leg 101The outer surface of the shell body 8 is supported by the tip of the
By holding the powder slush molding device to be described later
4, the shell body 8 is deformed by the weight of the powder P when it is reversed.
Prevent. The powder slash composition constructed in this way
The shaping device 4 has a powder box centered on the reversing shaft 11.
5 in the position of FIG. 3 and the molding die 6 in the position of FIG.
The posture is reversed and driven by a drive source (not shown).
It
【００１２】図４〜図６を併せて参照すると明らかなよ
うに、キャビティ７に対向するシェル体８の内面には、
耐熱性に優れたテフロン樹脂、バイトンゴム、シリコン
ゴム等の非金属材料で形成した薄板状の断熱部材１２が
複数貼付される。各断熱部材１２の外周にはシェル体８
に向かって突出する突条１２1 が一体に形成されるとと
もに、その突条１２1 の内側には同じくシェル体８に向
かって突出する多数の突起１２2 が一体に形成される。
そして、断熱部材１２は前記突条１２1 及び突起１２2
の部分で、耐熱性を有するシリコン樹脂接着剤等を介し
てシェル体８の内面に接着され、前記突条１２1 及び突
起１２2 の間には断熱空間１３が形成される。As will be apparent by referring also to FIGS. 4 to 6, the inner surface of the shell body 8 facing the cavity 7 is
A plurality of thin plate-shaped heat insulating members 12 made of a non-metal material such as Teflon resin, viton rubber, and silicon rubber having excellent heat resistance are attached. A shell body 8 is provided on the outer periphery of each heat insulating member 12.
The protrusion 12 1 is formed integrally with the protrusion 12 1 , and a large number of protrusions 12 2 that are also protruded toward the shell body 8 are integrally formed inside the protrusion 12 1 .
Then, the heat insulating member 12 has the ridge 12 1 and the protrusion 12 2
At this portion, it is adhered to the inner surface of the shell body 8 through a heat-resistant silicone resin adhesive or the like, and a heat insulating space 13 is formed between the protrusion 12 1 and the protrusion 12 2 .
【００１３】図４から明らかなように、断熱部材１２
は、インストルメントパネルＷの非製品部分、即ち製品
部分の内部に形成される前記メーター装着用の開口部Ｈ
1 、オーディオ装置装着用の開口部Ｈ2 、アッシュトレ
ー装着用の開口部Ｈ3 及びグローブボックス装着用の開
口部Ｈ4 に対応する部分と、製品部分の外周の非製品部
分である余肉部とに対応する部分に貼付される。As is apparent from FIG. 4, the heat insulating member 12
Is a non-product part of the instrument panel W, that is, the opening H for mounting the meter formed inside the product part.
1 , a portion corresponding to the opening H 2 for mounting the audio device, the opening H 3 for mounting the ash tray, and the opening H 4 for mounting the glove box, and a surplus portion which is a non-product portion on the outer periphery of the product portion. It is affixed to the part corresponding to and.
【００１４】次に、本発明の実施例の作用について説明
する。Next, the operation of the embodiment of the present invention will be described.
【００１５】先ず、図３に示すように、パウダスラッシ
ュ成形装置４のパウダボックス５に樹脂パウダＰを収容
した状態で、そのパウダボックス５の上部に予めシェル
体８加熱した成形金型６を重ね合わせ、図示せぬクラン
プで締結する。続いて、図７に示すように、パウダスラ
ッシュ成形装置４を反転軸１１回りに１８０°反転させ
ると、パウダボックス５内の樹脂パウダＰがキャビティ
７内に落下し、シェル体８の内面に所定厚さの層状に付
着溶融する。そして、図８に示すように、パウダスラッ
シュ成形装置４を反転軸１１回りに再び１８０°反転さ
せると、余剰の樹脂パウダＰがパウダボックス５に戻さ
れ、シェル体８の内面にインストルメントパネルＷの表
皮材１が成形される。First, as shown in FIG. 3, in a state where the resin powder P is housed in the powder box 5 of the powder slush molding device 4, the shell body 8 and the molding die 6 heated in advance are stacked on the upper portion of the powder box 5. Align and fasten with a clamp (not shown). Subsequently, as shown in FIG. 7, when the powder slush molding device 4 is inverted by 180 ° about the inversion axis 11, the resin powder P in the powder box 5 falls into the cavity 7 and is predetermined on the inner surface of the shell body 8. It adheres and melts in layers of thickness. Then, as shown in FIG. 8, when the powder slush molding apparatus 4 is inverted again by 180 ° about the inversion axis 11, the surplus resin powder P is returned to the powder box 5, and the instrument panel W is attached to the inner surface of the shell body 8. The skin material 1 is molded.
【００１６】このとき、シェル体８の内面にはインスト
ルメントパネルＷの表皮材１の非製品部分、即ち種々の
開口部Ｈ1 〜Ｈ4 や外周の余肉部に対応して断熱部材１
２が貼付されており、且つ断熱部材１２にはシェル体８
の熱が伝達されずに樹脂パウダＰの溶融温度よりも低温
状態にあるため、断熱部材１２に付着した樹脂パウダＰ
は溶融せずに表皮材１の製品部分のみが成形される。従
って、図９に示すように、成形金型６をパウダボックス
５から分離して表皮材１を取り出すと、その表皮材１に
は前記開口部Ｈ1 〜Ｈ4 及び余肉部に対応する部分が一
体に成形されておらず、実際に使用される製品部分だけ
が成形されることになる。これにより、樹脂パウダＰの
無駄な消費を防止し、製造コストを削減することができ
る。At this time, the heat insulating member 1 is formed on the inner surface of the shell body 8 corresponding to the non-product portions of the skin material 1 of the instrument panel W, that is, the various openings H 1 to H 4 and the outer peripheral wall.
2 is attached and the heat insulating member 12 has a shell body 8
Since the heat of the resin powder P is not transferred and the temperature is lower than the melting temperature of the resin powder P, the resin powder P attached to the heat insulating member 12
Is not melted, and only the product portion of the skin material 1 is molded. Therefore, as shown in FIG. 9, when the molding die 6 is separated from the powder box 5 and the skin material 1 is taken out, the skin material 1 has portions corresponding to the openings H 1 to H 4 and the extra thickness portion. Is not integrally molded, and only the product part actually used is molded. As a result, wasteful consumption of the resin powder P can be prevented and the manufacturing cost can be reduced.
【００１７】而して、図２に示すように、表皮材１の内
面にウレタン材２及び芯材３を順次積層することにより
インストルメントパネルＷが製造される。Then, as shown in FIG. 2, the instrument panel W is manufactured by sequentially laminating the urethane material 2 and the core material 3 on the inner surface of the skin material 1.
【００１８】以上、本発明の実施例を詳述したが、本発
明は前記実施例に限定されるものでなく、種々の設計変
更を行うことが可能である。Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various design changes can be made.
【００１９】例えば、本発明の用途は自動車のインスト
ルメントパネルＷの表皮材１に限定されず、ドアトリム
の表皮材等の他の任意の用途に適用することができる。
また本発明は、パウダボックス５の内部に駆動源に接続
されて回転する羽根を設け、この羽根で樹脂パウダを撥
ね上げて成形金型の内面に付着溶融させるパウダスラッ
シュ成形装置や、加熱冷却用の媒体を流通させることに
より成形金型を加熱・冷却するパウダスラッシュ成形装
置に対しても適用することができる。For example, the application of the present invention is not limited to the skin material 1 of the instrument panel W of an automobile, but can be applied to any other application such as a skin material of a door trim.
Further, according to the present invention, a blade that is connected to a drive source and rotates is provided inside the powder box 5, and a powder slush molding device that repels the resin powder by this blade to adhere and melt the resin powder to the inner surface of the molding die, and for heating and cooling. It can also be applied to a powder slush molding apparatus that heats and cools a molding die by circulating the medium.
【００２０】[0020]
【発明の効果】以上のように本発明の第１または第２の
特徴によれば、パウダスラッシュ成形時に成形金型の製
品部分にのみ樹脂パウダを付着溶融させて表皮材を成形
することが可能となる。これにより、成形後に切断除去
される不要部分を成形して樹脂パウダが無駄に消費され
ることを防止し、コストの削減を図ることが可能とな
る。As described above, according to the first or second feature of the present invention, it is possible to form the skin material by adhering and melting the resin powder only to the product portion of the molding die during the powder slush molding. Becomes As a result, it is possible to prevent unnecessary consumption of the resin powder by molding the unnecessary portion that is cut and removed after the molding, and to reduce the cost.
【図１】自動車のインストルメントパネルの正面図FIG. 1 is a front view of an instrument panel of a car.
【図２】図１の２−２線拡大断面図FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG.
【図３】パウダスラッシュ成形金型の断面図FIG. 3 is a sectional view of a powder slush molding die.
【図４】図３の４−４線矢視図FIG. 4 is a view taken along the line 4-4 of FIG.
【図５】図４の５部拡大図5 is an enlarged view of part 5 of FIG.
【図６】図５の６−６線断面図6 is a sectional view taken along line 6-6 of FIG.
【図７】作用の説明図FIG. 7 is an explanatory diagram of operation
【図８】作用の説明図FIG. 8 is an explanatory diagram of the operation
【図９】作用の説明図FIG. 9 is an explanatory diagram of operation
１ 表皮材 ６ 成形金型 １２ 断熱部材（断熱層） Ｐ 樹脂パウダ 1 Skin material 6 Mold 12 Heat insulating member (heat insulating layer) P Resin powder
Claims (2)
ウダ（Ｐ）を付着溶融させて表皮材（１）を成形する表
皮材のパウダスラッシュ成形方法において、 前記成形金型（６）の内面の非製品部分に断熱層（１
２）を形成し、パウダスラッシュ成形時に前記断熱層
（１２）に付着した樹脂パウダ（Ｐ）の溶融を抑制する
ことを特徴とする、表皮材のパウダスラッシュ成形方
法。1. A powder slush molding method for a skin material, comprising molding a skin material (1) by adhering and melting a resin powder (P) to the inner surface of a heated molding die (6), wherein the molding die (6) is used. Insulation layer (1
(2) is formed to suppress melting of the resin powder (P) adhered to the heat insulating layer (12) during powder slush molding, a method for powder slush molding of a skin material.
ウダ（Ｐ）を付着溶融させて表皮材（１）を成形する表
皮材のパウダスラッシュ成形金型において、 前記成形金型（６）の内面の非製品部分に、耐熱性を有
する非金属材料で形成した断熱部材（１２）を固着した
ことを特徴とする、表皮材のパウダスラッシュ成形金
型。2. A powder slush molding die for a skin material, wherein a resin powder (P) is adhered and melted on the inner surface of a heated molding die (6) to form a skin material (1), wherein the molding die (6) ) A powder slush molding die for a skin material, characterized in that a heat insulating member (12) made of a non-metal material having heat resistance is fixed to a non-product portion of the inner surface of (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4300871A JPH06143309A (en) | 1992-11-11 | 1992-11-11 | Powder slush molding method for skin material and powder slush mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4300871A JPH06143309A (en) | 1992-11-11 | 1992-11-11 | Powder slush molding method for skin material and powder slush mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06143309A true JPH06143309A (en) | 1994-05-24 |
Family
ID=17890119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4300871A Pending JPH06143309A (en) | 1992-11-11 | 1992-11-11 | Powder slush molding method for skin material and powder slush mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06143309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5612066A (en) * | 1995-04-11 | 1997-03-18 | Davidson Textron, Inc. | Heat insulating mold panel for a mold tool |
| CN117324589A (en) * | 2023-09-19 | 2024-01-02 | 中山市剑锋照明实业有限公司 | Low-pressure casting product, low-pressure casting mold and low-pressure casting method |
-
1992
- 1992-11-11 JP JP4300871A patent/JPH06143309A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5612066A (en) * | 1995-04-11 | 1997-03-18 | Davidson Textron, Inc. | Heat insulating mold panel for a mold tool |
| CN117324589A (en) * | 2023-09-19 | 2024-01-02 | 中山市剑锋照明实业有限公司 | Low-pressure casting product, low-pressure casting mold and low-pressure casting method |
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