【発明の詳細な説明】
本発明は岩綿板の製造方法の改良に関するもの
で、さらに詳述すれば岩綿板１を吸湿軟化処理し
たのち深い凹凸模様を有する金型２にて軟化した
岩綿板１をホツトプレスすることを特徴とする岩
綿板の製造方法に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for manufacturing a rock wool board, and more specifically, after a rock wool board 1 is subjected to moisture absorption softening treatment, the softened rock is processed in a mold 2 having a deep uneven pattern. This relates to a method for producing a rock wool board, which is characterized by hot-pressing a cotton board 1.
従来、岩綿板の表面に深い彫り模様をつける場
合プレーナー、カツター、ルーター、などにより
切削加工を行つていたが、深い彫り模様の場合切
削屑が多量に発生し、製品歩留は50％になる場合
があり、歩留が非常に悪いという欠点があつた。 Traditionally, when creating a deep carved pattern on the surface of a rock wool board, cutting was performed using a planer, cutter, router, etc. However, when creating a deep carved pattern, a large amount of cutting waste was generated, resulting in a product yield of 50%. The disadvantage was that the yield was very poor.
本発明はかかる従来例の欠点に鑑みてなされた
もので、本発明の目的とするところは、岩綿板を
吸湿軟化処理したのち深い凹凸模様を有する金型
にて軟化した岩綿板をホツトプレスすることによ
り、くずを全く出さず彫りの深い岩綿板を製造す
ることができる岩綿板の製造方法を提供するにあ
る。 The present invention has been made in view of the drawbacks of the conventional examples, and an object of the present invention is to subject a rock wool board to moisture absorption softening treatment, and then hot press the softened rock wool board in a mold having a deep uneven pattern. To provide a method for manufacturing a rock wool board which can produce a rock wool board with deep carvings without producing any waste.
以下本発明を図示実施例に従つて詳述する。岩
綿板１は硬質の平板状のもので、ロールコータ３
で塗料を塗布後、加熱装置４に岩綿板１を供給す
る。ここで岩綿板１は表面及び裏面に片面20ｇの
水分が塗布され、加熱される。周知のように岩綿
板は岩綿の結合材としてデンプンが用いられて形
成されているために、この吸湿軟化処理で岩綿板
１は軟化する。次ぎにこの軟化した岩綿板１を加
熱装置４の金型２にてホツトプレスする。金型２
には彫りの深い凹凸模様がそれぞれ噛み合うよう
に刻設してあり、岩綿板１はこの彫りの深い凹凸
模様に沿つて屈曲する。この場合金型２の表面温
度は150℃〜250℃である。このホツトプレス工程
で岩綿板１は再び乾燥硬化する。このようにホツ
トプレスにて成形された岩綿板１を金型２から取
出し冷却すると厚みが均一で深い彫り模様を有す
る岩綿板１が完成する。この岩綿板１は家屋の捨
て貼り天井面に敷設されるものであり、この場合
天井面と岩綿板１との間に彫りの深い密閉空気層
ができ、岩綿板１自身の保温性と共に断熱性を大
幅に向上させることができるものである。 The present invention will be described in detail below with reference to illustrated embodiments. The rock wool board 1 is a hard flat plate, and is coated with a roll coater 3.
After applying the paint, the rock wool board 1 is supplied to the heating device 4. Here, the rock wool board 1 is coated with 20 g of water on each side and heated. As is well known, since the rock wool board is formed using starch as a binding material for rock wool, the rock wool board 1 is softened by this moisture absorption softening treatment. Next, this softened rock wool board 1 is hot pressed using the mold 2 of the heating device 4. Mold 2
A deeply carved concave-convex pattern is carved into the board so as to interlock with each other, and the rock wool board 1 is bent along the deeply carved concave-convex pattern. In this case, the surface temperature of the mold 2 is 150°C to 250°C. In this hot pressing process, the rock wool board 1 is dried and hardened again. When the rock wool board 1 thus formed by hot pressing is taken out from the mold 2 and cooled, a rock wool board 1 having a uniform thickness and a deeply carved pattern is completed. This rock wool board 1 is installed on the ceiling surface of a house, and in this case, a deeply carved sealed air layer is created between the ceiling surface and the rock wool board 1, which improves the heat retention of the rock wool board 1 itself. At the same time, the heat insulation properties can be significantly improved.
本発明は叙上のように岩綿板を吸湿軟化処理し
たのち金型にて軟化した岩綿板をホツトプレスす
るので、従来例のように厚い岩綿板を切削して彫
りの深い模様付けをするものでなく、薄い岩綿板
で深い彫りの凹凸をつけることができ、しかもホ
ツトプレスであるため切削屑が全く発生せず、歩
留が100％となるという利点があり、しかもプレ
ス加工であるため加工速度が切削加工と違い非常
に速いという利点を有するものである。また深い
凹凸模様を有する金型にて軟化した岩綿板をホツ
トプレスするのであるから、深い凹凸模様を有す
る岩綿板が得られ、捨て貼り天井面にこの岩綿板
を敷設した場合密閉空気層が岩綿板と天井面との
間に形成され、天井面の断熱性が向上するという
利点がある。 In the present invention, as described above, the rock wool board is subjected to a moisture softening treatment and then the softened rock wool board is hot pressed in a mold, so unlike the conventional example, a thick rock wool board can be cut and deeply carved patterns can be created. It has the advantage of being able to create deep carvings and convexities on thin rock wool plates, and since it is a hot press, no cutting waste is generated and the yield is 100%. Therefore, it has the advantage that the machining speed is very fast, unlike cutting machining. In addition, since the softened rock wool board is hot-pressed in a mold with a deep uneven pattern, a rock wool board with a deep uneven pattern is obtained, and when this rock wool board is laid on a ceiling surface, it creates a sealed air space. is formed between the rock wool board and the ceiling surface, which has the advantage of improving the insulation properties of the ceiling surface.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図は本発明における岩綿板の吸湿軟化処理
の概略図、第２図は同上における吸湿軟化後の岩
綿板を金型間に挿入した時の概略図、第３図は同
上のホツトプレス時の概略図、第４図は本発明の
ホツトプレスされた岩綿板である。
１……岩綿板、２……金型。
Fig. 1 is a schematic diagram of the hygroscopic softening treatment of a rock wool board according to the present invention, Fig. 2 is a schematic diagram of the same as above when the rock wool board after hygroscopic softening is inserted between the molds, and Fig. 3 is a schematic diagram of the same as the above hot press. FIG. 4 is a schematic diagram of a hot-pressed rock wool board of the present invention. 1... Rock wool board, 2... Mold.