JPH0720627B2 - Method of manufacturing furniture top plate - Google Patents

Method of manufacturing furniture top plate

Info

Publication number
JPH0720627B2
JPH0720627B2 JP63043077A JP4307788A JPH0720627B2 JP H0720627 B2 JPH0720627 B2 JP H0720627B2 JP 63043077 A JP63043077 A JP 63043077A JP 4307788 A JP4307788 A JP 4307788A JP H0720627 B2 JPH0720627 B2 JP H0720627B2
Authority
JP
Japan
Prior art keywords
resin
top plate
mold
powder
skin layer
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.)
Expired - Lifetime
Application number
JP63043077A
Other languages
Japanese (ja)
Other versions
JPH01215513A (en
Inventor
正明 赤坂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sun Wave Corp
Original Assignee
Sun Wave Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sun Wave Corp filed Critical Sun Wave Corp
Priority to JP63043077A priority Critical patent/JPH0720627B2/en
Publication of JPH01215513A publication Critical patent/JPH01215513A/en
Publication of JPH0720627B2 publication Critical patent/JPH0720627B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、流し台、調理台、カウンター、テーブル等
の家具用天板を製造する方法に関し、更に詳しくは合成
樹脂材料で形成される家具用天板の製造方法に関する。
Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a top plate for furniture such as a sink, a cooktop, a counter, and a table, and more particularly for furniture formed of a synthetic resin material. The present invention relates to a method for manufacturing a top plate.

(従来の技術) 従来、エポキシ、ポリエステル、アクリル等の熱硬化性
樹脂にガラス繊維等の充填材を混合して強度と嵩並びに
重量を有せしめた樹脂材料により、家具用天板を成形す
ることは公知である。かかる樹脂材料は、強度、重量並
びに外観において大理石に近似したものである為、一般
に人造大理石とも称せられ、成形時の加圧により樹脂分
が表面に浸出して表面に薄いスキン層が形成され、製品
の表面に滑らかさと光沢を付与している。しかしなが
ら、このスキン層はきわめて薄く、スキン層が損傷する
と直ちに充填材が露出して体裁が悪くなる欠点があっ
た。
(Prior Art) Conventionally, a top plate for furniture has been molded from a resin material having strength, bulk and weight by mixing a thermosetting resin such as epoxy, polyester or acrylic with a filler such as glass fiber. Is known. Since such a resin material is similar to marble in strength, weight and appearance, it is also generally called artificial marble, and the resin component is leached to the surface by pressure during molding to form a thin skin layer on the surface, It gives the product surface smoothness and gloss. However, this skin layer is extremely thin, and when the skin layer is damaged, the filler is exposed immediately, resulting in poor appearance.

そこで、成形型に予め所要の厚さの樹脂を塗布して成形
するプリモールド方が提案されている。このプリモール
ド法によれば、製品表面に所要の厚みのスキン層が形成
される為、前述したようなスキン層が損傷したとき、直
ちに充填材が露出して来るような不都合は回避すること
が出来、耐久性のある人造大理石の天板を得ることが出
来た。
Therefore, a pre-molding method has been proposed in which a molding die is preliminarily coated with a resin having a required thickness to be molded. According to this pre-molding method, a skin layer having a required thickness is formed on the surface of the product. Therefore, when the skin layer is damaged as described above, it is possible to avoid the disadvantage that the filler is immediately exposed. It was possible to obtain a durable artificial marble top plate.

(発明が解決しようとする問題点) しかしながら、プリモールド法において成形型への粉末
樹脂の塗布は一般に静電エアーガンを用いて行っている
が、塗布面が広い面積である場合、多数のエアーガンを
必要とし、且エアーを使用するため塗膜が不均一とな
り、又、樹脂粉末が飛散する為、防塵対策を要し、更に
塗布に時間を要するという問題点があった。更に、粉末
の飛散を防止するために、遮閉マスクを用いた場合、溶
融した樹脂がマスクに接触すると、いわゆる樹脂が糸を
引く現象が生ずるおそれがあった。
(Problems to be Solved by the Invention) However, in the pre-molding method, the powder resin is generally applied to the forming die using an electrostatic air gun. However, when the application surface is large, a large number of air guns are used. There is a problem that the coating film becomes non-uniform because it is necessary and air is used, and because the resin powder is scattered, dust-proof measures are required, and further it takes time for coating. Further, when a shielding mask is used to prevent the powder from scattering, when the molten resin comes into contact with the mask, a so-called resin pulling phenomenon may occur.

(問題点を解決するための手段) 上記問題点を解決するために、この発明が採った手段
は、上面が上型の被塗面で閉塞された空間内において静
電振動により荷電した樹脂粉末を予熱された上型の被塗
面に塗着し融着させる工程と、予熱された下型上にバッ
クアップ樹脂材を載置溶融させる工程と、上型と下型と
の間で加圧成形してバックアップ樹脂を固化してゲルコ
ートスキン層とバック層とからなる製品を成形する工程
とを含むことを特徴とする。
(Means for Solving the Problems) In order to solve the above problems, the means adopted by the present invention is a resin powder charged by electrostatic vibration in a space whose upper surface is closed by the upper surface to be coated. Is applied to the surface of the preheated upper mold to be fused and fused, the step of placing and melting the backup resin material on the preheated lower mold, and pressure molding between the upper mold and the lower mold And then solidifying the backup resin to form a product comprising a gel coat skin layer and a back layer.

(作 用) 上型の被塗面で閉塞された空間内において、樹脂粉末を
帯電と振動とによる静電振動によって浮遊させて、アー
スされた被塗面に塗着させると共に、塗着した粉末樹脂
を予熱された被塗面に融着させ、その後下型上に載置さ
れたバックアップ樹脂材と上下型による成形によって一
体化し所望形状の天板を作出する。
(Working) In the space closed by the coated surface of the upper mold, the resin powder is suspended by electrostatic vibration due to charging and vibration to coat the grounded coated surface and the coated powder. The resin is fused to the preheated surface to be coated, and then integrated with the backup resin material placed on the lower mold by molding with the upper and lower molds to produce a top plate having a desired shape.

(発明の効果) この発明によれば、充填材を含むバックアップ樹脂材表
面に所望の厚さのゲルコートスキン層を簡単に形成する
ことが出来る。ゲルコートスキン層は、静電振動効果に
より予め上型に塗着させるようにしてあるので、一度に
広い面積を短時間で均一に塗布することが出来、しかも
粉末の飛散がなく、防塵対策が不要となる。更に、面積
が広くても、静電振動をもたらすコイル電極の数並びに
長さを変えることにより一定の塗布時間で塗布を行うこ
とが出来る為、きわめて品質の高い製品を得ることが出
来る。又、コーティングボックスを交換することによっ
て、簡単に色替えや樹脂材質の変更を行うことが出来
る。
(Effect of the Invention) According to the present invention, the gel coat skin layer having a desired thickness can be easily formed on the surface of the backup resin material containing the filler. Since the gel coat skin layer is applied to the upper mold in advance by the electrostatic vibration effect, a large area can be applied uniformly at once in a short time, and there is no scattering of powder and no dust prevention measures are required. Becomes Further, even if the area is large, it is possible to perform the coating in a constant coating time by changing the number and length of the coil electrodes that cause electrostatic vibration, so that a product of extremely high quality can be obtained. Also, by changing the coating box, it is possible to easily change the color and the resin material.

(実施例) 以下に図面を参照しつつ、この発明の好ましい実施例を
詳細に説明する。第1図はこの発明の方法によって成形
された家具用天板(1)を示し、天板(1)はガラス繊
維等の充填材を混合したバック層(2)と、該バック層
(2)の表面を被覆するゲルコートスキン層(3)とか
らなり、バック層(2)は天板の保形、強度並びに重量
等をもたらし、ゲルコートスキン層(3)は天板表面の
強度、耐久性、耐薬品性、美麗さ等をもたらす。
(Embodiment) A preferred embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a top plate (1) for furniture formed by the method of the present invention. The top plate (1) is a back layer (2) mixed with a filler such as glass fiber, and the back layer (2). And a gel coat skin layer (3) for covering the surface of the top layer, the back layer (2) provides shape retention, strength and weight of the top plate, and the gel coat skin layer (3) has strength, durability, and Brings chemical resistance and beauty.

バック層(2)並びにゲルコートスキン層(3)を形成
する樹脂は、好ましくはエポキシ、ポリエステル、アク
リル等の熱硬化性樹脂からなり、バック層(2)は、バ
ルク若しくは板状の形態で提供され、ゲルコートスキン
層(3)は粉末の形態で提供される。
The resin forming the back layer (2) and the gel coat skin layer (3) is preferably made of a thermosetting resin such as epoxy, polyester or acrylic, and the back layer (2) is provided in a bulk or plate form. The gel coat skin layer (3) is provided in the form of powder.

第2、3図を参照して、(4)はコーティングボックス
であって、床面下部に下部電極(5a)を配置し、床面の
上部にコイル状の上部電極(5b)が配置され、下部電極
(5a)には時間的に電圧が変化する交流の高電圧が印加
され、上部電極(5b)には直流の高電圧が印加される。
Referring to FIGS. 2 and 3, (4) is a coating box, in which the lower electrode (5a) is arranged on the lower part of the floor surface, and the coiled upper electrode (5b) is arranged on the upper part of the floor surface. An alternating high voltage whose voltage changes with time is applied to the lower electrode (5a), and a direct high voltage is applied to the upper electrode (5b).

コーティングボックス(4)はガイドレール(6)上に
移動自在に支持され、成形用の上下型(7)(8)内に
出入り自在である。上型(7)はコーティングボックス
(4)の開放された上面を閉塞可能であり、この状態に
おいて上型(7)の被塗面がコーティングボックス
(4)内に露出する。上型(7)は電気的にアースさ
れ、零電位にされていると共に、塗着された粉末樹脂を
溶融可能な温度、例えば150℃程度に予め加熱される。
又、下型(8)も、その上に載置されるバックアップ樹
脂材を溶融するために、所要の温度例えば145℃程度に
予め加熱される。上型(7)によるコーティングボック
ス(4)上面の閉塞は、ボックス上面から上型(7)が
僅かに離れた状態で閉塞するのが好ましく、これにより
溶融した樹脂がボックスに接触して糸を引く現象が生ず
るのを完全に防止出来る。
The coating box (4) is movably supported on the guide rail (6) and can be freely moved in and out of the upper and lower molds (7) (8) for molding. The upper mold (7) can close the open upper surface of the coating box (4), and in this state, the coated surface of the upper mold (7) is exposed in the coating box (4). The upper mold (7) is electrically grounded to zero potential and is preheated to a temperature at which the applied powder resin can be melted, for example, about 150 ° C.
Further, the lower mold (8) is also preheated to a required temperature, for example, about 145 ° C. in order to melt the backup resin material placed thereon. The upper mold (7) preferably closes the upper surface of the coating box (4) when the upper mold (7) is slightly separated from the upper surface of the box, so that the molten resin comes into contact with the box and the yarn It is possible to completely prevent the phenomenon of pulling.

樹脂粉末を投入したコーティングボックス(4)の上面
を上型(7)で閉塞し、上下電極(5a)(5b)間に交流
及び直流の高電圧を印加すると、2つの電極(5a)(5
b)間の粉末が、コーティングボックスの床又は粉末同
志による接触帯電により荷電され、且電極との間に反
発、吸引力を受けて静電振動し、上下に振動する。上型
(7)はアースされているので、上部電極(5b)との間
に電気力線ができ、静電振動効果で粉末粒子が舞い上が
り、電気力線に沿って上型(7)に向かって飛行し、被
塗面に静電的に付着する。帯電しない粉末は、ボックス
の床に滞っており、又付着しなかった粉末は、コーティ
ングボックスの床に戻る。被塗面に付着した粉末は、上
型(7)が予熱されている為、溶融して被塗面に融着す
る。
When the upper surface of the coating box (4) containing the resin powder is closed by the upper mold (7) and a high voltage of AC and DC is applied between the upper and lower electrodes (5a) (5b), the two electrodes (5a) (5)
The powder between b) is charged by the contact electrification by the floor of the coating box or the powders, and repulsion between the powder and the electrode, electrostatic attraction vibrates by the suction force, and vibrates up and down. Since the upper die (7) is grounded, electric lines of force are created between the upper die (5b) and the powder particles rise up due to the electrostatic vibration effect, and the electric lines of force are directed toward the upper die (7) along the electric lines of force. It flies and electrostatically adheres to the coated surface. The non-charged powder stays on the floor of the box and the non-adhering powder returns to the floor of the coating box. Since the upper mold (7) is preheated, the powder adhering to the coated surface is melted and fused to the coated surface.

次に、第5図を参照しつつ、製造工程について説明す
る。先ず、コーティングボックス(4)を移動させて上
下型(7)(8)の間に位置させ(第5図)、上型
(7)を下降させてコーティングボックス(4)の上面
を閉塞し、交流及び直流の高電圧を下部及び上部電極に
印加する。高電圧の印加により前述した静電振動作用で
樹脂粉末が上型(7)の被塗面に付着し、且溶融して融
着する(第5図)。
Next, the manufacturing process will be described with reference to FIG. First, the coating box (4) upper and lower molds are moved (7) is positioned between the (8) (FIG. 5 A), closes the top of lowering the upper mold (7) by coating box (4) , AC and DC high voltages are applied to the lower and upper electrodes. Resin powder electrostatic vibration effects described above by application of high voltage may adhere to the coated surface of the upper mold (7), fused to且melted (FIG. 5 B).

次に、上型(7)を上昇させ上下型の間からコーティン
グボックス(4)を退避させ、下型(8)上にバックア
ップ樹脂バルク(9)を載置し、(第5図)、上型
(7)を下降させて下型(8)でキャビティを画成し、
バルク(9)を所望の形状に成形しバック層を形成する
と共に、該バック層表面に上型(7)の溶融した樹脂を
一体化させてゲルコートスキン層を形成する(第5図
)。成形後、上型(7)を上昇させ(第5図)、成
形された天板(2)を取り出す(第5図)。
Next, retracts the upper die (7) coated from between upper and lower dies to raise the box (4), placing the backup resin bulk (9) on the lower mold (8), (FIG. 5 C), Lower the upper mold (7) and define the cavity with the lower mold (8),
The bulk (9) is molded into a desired shape to form a back layer, and the molten resin of the upper mold (7) is integrated on the surface of the back layer to form a gel coat skin layer (Fig. 5).
D ). After molding, raising the upper mold (7) (FIG. 5 E), taken out molded top plate (2) (FIG. 5 F).

ゲルコートスキン層としてポリエステルの樹脂粉末を、
バックアップ樹脂として、ガラス繊維を混入したポリエ
ステル樹脂バルクを選択し、上型を150℃、下型を145℃
に予熱し、印加電圧−45KV、塗布時間30秒で樹脂粉末を
上型に塗布し2分間溶融させ、加圧時間12分、圧力60kg
/cm2で加圧成形した。得られた製品のゲルコートスキン
層は250〜300μの厚みであり、バック層を含めた厚みは
10mmであった。
Polyester resin powder as a gel coat skin layer,
Select the polyester resin bulk mixed with glass fiber as the backup resin, the upper mold is 150 ℃, the lower mold is 145 ℃.
Preheated, applied voltage -45KV, coating time 30 seconds, apply resin powder to the upper mold and melt for 2 minutes, pressurizing time 12 minutes, pressure 60kg
Pressure molding was performed at / cm 2 . The gel coat skin layer of the obtained product has a thickness of 250 to 300 μ, and the thickness including the back layer is
It was 10 mm.

【図面の簡単な説明】[Brief description of drawings]

第1図はこの発明によって製造された天板の斜視図、第
2図は成形型とコーティングボックスを示す断面図、第
3図は第2図III−III線に沿った断面図、第4図は同縦
断斜視図、第5図は製造工程を示す図である。 (1)……天板、(2)……バック層 (3)……ゲルコートスキン層 (4)……コーティングボックス (5a)……下部電極、(5b)……上部電極 (6)……ガイドレール、(7)……上型 (8)……下型 (9)……バックアップ樹脂バルク
1 is a perspective view of a top plate manufactured according to the present invention, FIG. 2 is a sectional view showing a mold and a coating box, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. Is a vertical cross-sectional perspective view, and FIG. 5 is a diagram showing a manufacturing process. (1) …… top plate, (2) …… back layer (3) …… gel coat skin layer (4) …… coating box (5a) …… lower electrode, (5b) …… upper electrode (6) …… Guide rail, (7) …… Upper mold (8) …… Lower mold (9) …… Backup resin bulk

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B29K 67:00 105:06 B29L 31:44 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B29K 67:00 105: 06 B29L 31:44

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】上面が上型の被塗面で閉塞された空間内に
おいて静電振動により荷電した樹脂粉末を予熱された上
型の被塗面に塗着し融着させる工程と、 予熱された下型上にバックアップ樹脂材を載置させる工
程と、 上型と下型との間で加圧成形してバックアップ樹脂を固
化してゲルコートスキン層とバック層とからなる製品を
成形する工程とを含むことを特徴とする家具用天板の製
造方法。
1. A step of applying and fusing a resin powder charged by electrostatic vibration to a preheated upper die coated surface in a space whose upper surface is closed by the upper die coated surface, and preheating. And a step of placing a backup resin material on the lower mold, and a step of pressure-molding between the upper mold and the lower mold to solidify the backup resin to mold a product including a gel coat skin layer and a back layer. A method of manufacturing a top plate for furniture, comprising:
JP63043077A 1988-02-24 1988-02-24 Method of manufacturing furniture top plate Expired - Lifetime JPH0720627B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63043077A JPH0720627B2 (en) 1988-02-24 1988-02-24 Method of manufacturing furniture top plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63043077A JPH0720627B2 (en) 1988-02-24 1988-02-24 Method of manufacturing furniture top plate

Publications (2)

Publication Number Publication Date
JPH01215513A JPH01215513A (en) 1989-08-29
JPH0720627B2 true JPH0720627B2 (en) 1995-03-08

Family

ID=12653784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63043077A Expired - Lifetime JPH0720627B2 (en) 1988-02-24 1988-02-24 Method of manufacturing furniture top plate

Country Status (1)

Country Link
JP (1) JPH0720627B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2781323B2 (en) * 1993-05-17 1998-07-30 イシバシテック株式会社 Artificial marble countertop

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256141A (en) * 1975-09-30 1977-05-09 Brennenstuhl Kg Hugo Method and apparatus for coating article with powdery or granular particles* or flock or fiber
JPS57181823A (en) * 1981-05-02 1982-11-09 Nippon Paint Co Ltd Molding method of frp products

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256141A (en) * 1975-09-30 1977-05-09 Brennenstuhl Kg Hugo Method and apparatus for coating article with powdery or granular particles* or flock or fiber
JPS57181823A (en) * 1981-05-02 1982-11-09 Nippon Paint Co Ltd Molding method of frp products

Also Published As

Publication number Publication date
JPH01215513A (en) 1989-08-29

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