JPS6023748B2 - How to manufacture washbasins - Google Patents
How to manufacture washbasinsInfo
- Publication number
- JPS6023748B2 JPS6023748B2 JP55112377A JP11237780A JPS6023748B2 JP S6023748 B2 JPS6023748 B2 JP S6023748B2 JP 55112377 A JP55112377 A JP 55112377A JP 11237780 A JP11237780 A JP 11237780A JP S6023748 B2 JPS6023748 B2 JP S6023748B2
- Authority
- JP
- Japan
- Prior art keywords
- washbasin
- urethane resin
- mold
- opening
- temperature
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Combinations Of Kitchen Furniture (AREA)
- Sink And Installation For Waste Water (AREA)
Description
【発明の詳細な説明】
本発明は夫板中央の関口部に洗面器を配置固定して形成
される洗面台の製造方法に関するものであって、洗面器
と夫板とを結合するウレタン樹脂の表面の成形不良をな
くして美麗なウレタン樹脂表面を得ることができるよう
にした洗面台の製造方法を提供することを目的とするも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a washstand formed by arranging and fixing a washbasin at the entrance in the center of the husband plate, and the present invention relates to a method of manufacturing a washstand formed by placing and fixing a washbasin at the entrance in the center of the husband plate. It is an object of the present invention to provide a method for manufacturing a washbasin, which eliminates molding defects on the surface and allows a beautiful urethane resin surface to be obtained.
以下本発明の一実施例を図面により詳述する。第１図及
び第２図は本発明の実施例を示し、キャビネット１２上
面に配設される夫板１の中央に関口部２を設けてこの開
口部２に洗面器３を配談し、洗面器３の外周縁と上記閉
口部２の内周縁とをウレタン樹脂４により結合したもの
であり、ウレタン樹脂４により夫板１と洗面器３とが強
固に結合されるとともに洗面器３周緑部における水密性
が確保されることになる。ところで上述のような目的で
ウレタン樹脂の低圧成形法による成型を行う際、注入さ
れるウレタン樹脂の液温は成形性及び硬化時間のかね合
いで約３０℃程度に設定され、２液が混合されて硬化が
始まることになる。An embodiment of the present invention will be described in detail below with reference to the drawings. FIGS. 1 and 2 show an embodiment of the present invention, in which an opening 2 is provided in the center of a husband plate 1 disposed on the upper surface of a cabinet 12, and a washbasin 3 is arranged in this opening 2. The outer circumferential edge of the vessel 3 and the inner circumferential edge of the closing portion 2 are joined together by a urethane resin 4, and the urethane resin 4 firmly connects the husband plate 1 and the washbasin 3, and the green part around the washbasin 3. watertightness will be ensured. By the way, when molding urethane resin using the low-pressure molding method for the above purpose, the temperature of the injected urethane resin liquid is set at about 30°C due to moldability and curing time, and the two liquids are mixed. hardening will begin.
そしてこの硬化は、ウレタン樹脂の内部発熱により促進
されてさらに反応が進むことになる。そのため始めの温
度が高い所では硬化が早く起り、温度の低い所では硬化
の始まりが遅れる。このため前述のような成型に際し、
夫板１の表面側ウレタン樹脂４に接する成形型８が液温
に比べて低温である場合、この成形型８に接したウレタ
ン樹脂４の硬化が遅れ、硬イリ収縮（３〜５％）の分だ
けウレタン樹脂４の表面乃至表面に近い部分に空洞Ｘが
生じることになり、すなわち、ウレタン樹脂４が硬化の
早く起った中央部分にとられて、硬化の遅れた表面部分
は樹脂不足となり、これが製造された洗面台の外観を損
う原因になる。第３図はこの成形工程の問題点を示した
説明図であって、下型となる成形型８はシリコンゴムシ
ールにより形成されて夫板１及び洗面器３の表面側に接
しており、上型たる成形型９と洗面器３周緑と関口部２
内周緑と下型たる成形型８とにより形成された空所１１
にウレタン樹脂４が注入される。しかして本発明にあっ
ては、第４図に示すように、夫板１等の表面側から接す
る成形型８であるシリコンゴムシール内にヒータ１０を
埋設し、このヒータ１０により成形型８の温度が注入さ
れるウレタン樹脂液溢よりやや高くなるようにするもの
であり、例えば液溢が３ぴ０のとき成形型８の温度を４
び０に、液温が４ぴ０のときに成形型８の温度を５ぴ０
以上に設定するものである。This curing is accelerated by internal heat generation of the urethane resin, and the reaction progresses further. Therefore, where the initial temperature is high, curing occurs quickly, and where the initial temperature is low, the onset of curing is delayed. For this reason, when molding as mentioned above,
When the mold 8 in contact with the urethane resin 4 on the front side of the husband plate 1 is at a lower temperature than the liquid temperature, the curing of the urethane resin 4 in contact with the mold 8 is delayed, resulting in hard shrinkage (3 to 5%). Accordingly, a cavity X is formed on the surface of the urethane resin 4 or in a portion close to the surface. In other words, the urethane resin 4 is taken up in the central portion where curing occurs quickly, and the surface portion where curing is delayed becomes insufficient in resin. , which causes damage to the appearance of the manufactured washbasin. FIG. 3 is an explanatory diagram showing a problem in this molding process, in which the lower mold 8 is formed of a silicone rubber seal and is in contact with the surface side of the husband plate 1 and the washbasin 3, and the upper mold Barrel mold 9, basin 3 surrounding green and Sekiguchi part 2
A space 11 formed by the inner green and the lower mold 8
The urethane resin 4 is injected into. However, in the present invention, as shown in FIG. The temperature of the mold 8 is set to be slightly higher than the overflow of the urethane resin to be injected.For example, when the overflow of the urethane resin is 3.
and 0, when the liquid temperature is 4 pm, the temperature of the mold 8 is set to 5 pm.
The settings above are as follows.
またこのとき上型である成形型９の温度は、製品の外観
品質上からは成形品の表面側を裏面側に比して先に硬化
させるために液溢より低く設定された方が良いが、硬化
時間、即ち成形時間とのかねあいにより液温と同じ程度
の温度に設定される。本発明は上述のように構成したも
のであるから開口部内周縁と洗面器外周縁とを結合する
ウレタン樹脂が夫板表面側から硬化されているため、ウ
レタン樹脂の表面側に空洞等が生じるようなことがなく
、美麗な外観が得られて成形不良を生じるようなことが
ない効果を有する。At this time, it is better to set the temperature of the upper mold 9 to be lower than the overflow temperature in order to harden the front side of the molded product earlier than the back side from the viewpoint of the appearance quality of the product. The temperature is set to be about the same as the liquid temperature depending on the curing time, that is, the molding time. Since the present invention is configured as described above, the urethane resin that connects the inner peripheral edge of the opening and the outer peripheral edge of the washbasin is hardened from the surface side of the husband plate, so that cavities etc. are not formed on the surface side of the urethane resin. This has the effect that a beautiful appearance can be obtained and molding defects will not occur.
第１図は本発明一実施例の斜視図、第２図は同上の夫坂
部の拡大断面図、第３図は本発明の問題点を示す説明図
、第４図は本発明の一実施例の姿部拡大断面図であり、
１は夫板、２は開ロ部、３は洗面器、４はウレタン樹脂
、５は凹溝、６は下方折曲部、７は注入口、８，９は夫
々成形型、１０はヒータである。
第１図
第２図
第３図
第４図Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view of the same as above, Fig. 3 is an explanatory diagram showing problems of the invention, and Fig. 4 is an embodiment of the invention. It is an enlarged sectional view of the figure,
1 is a husband plate, 2 is an opening part, 3 is a wash basin, 4 is a urethane resin, 5 is a groove, 6 is a downward bending part, 7 is an injection port, 8 and 9 are respective molds, and 10 is a heater. be. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
を配置した後、開口部内周縁と洗面器外周縁とに亘つて
その表面側又は表面側及び裏面側に成形型を配置し、開
口部内周縁と洗面器外周縁と成形型により形成された凹
所にウレタン樹脂を注入することにより天板に洗面器を
固定するようにした洗面台の製造方法において、天板及
び洗面器の表面側に位置する成形型内にヒータを埋設し
てこの成形型を注入樹脂液の液温よりやや高く維持する
ことを特徴とする洗面台の製造方法。1. After forming an opening in the center of the top plate and placing a washbasin in this opening, a mold is placed on the front side or on the front side and the back side between the inner periphery of the opening and the outer periphery of the washbasin. , in a method of manufacturing a washstand in which the washbasin is fixed to the top plate by injecting urethane resin into the recess formed by the inner periphery of the opening, the outer periphery of the washbasin, and the mold. A method for manufacturing a washstand, characterized by embedding a heater in a mold located on the surface side and maintaining the mold slightly higher than the liquid temperature of the injected resin liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55112377A JPS6023748B2 (en) | 1980-08-14 | 1980-08-14 | How to manufacture washbasins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55112377A JPS6023748B2 (en) | 1980-08-14 | 1980-08-14 | How to manufacture washbasins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5736230A JPS5736230A (en) | 1982-02-27 |
| JPS6023748B2 true JPS6023748B2 (en) | 1985-06-08 |
Family
ID=14585150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55112377A Expired JPS6023748B2 (en) | 1980-08-14 | 1980-08-14 | How to manufacture washbasins |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6023748B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS617336U (en) * | 1984-06-20 | 1986-01-17 | サンウエーブ工業株式会社 | Joint structure of furniture top plate and aquarium |
| JP2556105B2 (en) * | 1988-08-11 | 1996-11-20 | 村田機械株式会社 | Variety switching system in spinning spinning winder |
| JP2010174431A (en) * | 2009-01-27 | 2010-08-12 | Panasonic Electric Works Co Ltd | Manufacturing method for kitchen counter |
-
1980
- 1980-08-14 JP JP55112377A patent/JPS6023748B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5736230A (en) | 1982-02-27 |
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