201124352 六、發明說明： 【發明所屬之技術領域】 本發明係關於—種對浮式玻璃製造裝置之浮浴槽（float b a t h)供給溶融破壤之裝置。 【先前技術】 洋式玻璃係如下者：將於熔融玻璃製作區域製造之熔融 玻璃移送至浮式玻璃製造裝置之溶融玻璃供給部，並將移 送至省熔融玻璃供給部之熔融玻璃供給至浮浴槽之熔融錫 上，藉此成形為玻螭帶（glass ribb〇n)。作為該熔融玻璃之 移送裝置.通吊使用上部開放之槽狀之溶融玻璃流路，專 利文獻1中揭示有如下之裝置，其以供給管將於溶融玻璃 製作區域製造之熔融玻璃移送至浮式玻璃製造裝置之熔融 玻璃供給部。 該熔融玻璃移送裝置如圖4所示係如下者：將下游側設 置有漏斗狀展開部17之供給管18，於較熔融玻璃製作區域 中之熔融玻璃之高度19靠下側而呈水平狀地配置於熔融玻 璃製作區域與浮式玻璃製造裝置之熔融玻璃供給部之間， 將熔融玻璃自製作區域以上述供給管18移送並自上述漏斗 . 狀展開部之開口部供給至熔融玻璃供給部，所供給之熔融 , 玻璃一面由滑塊（slider)20調整熔融玻璃量一面向下流過供 給通道21而導入至浮浴槽22。 該熔融玻璃移送裝置中，熔融玻璃係以供給管移送至熔 融玻璃供給部，因此可避免於移送時熔融玻璃與周圍空氣 接觸。由此，可防止如LCD(liquid Crystal dispUy，液晶顯 152177.doc 201124352 示器）用玻璃基板般成形溫度較高之熔融玻璃之熱之輻射 散失，又於例如含有硼酸等易蒸發之成分之玻璃組成中可 防止該成分之蒸發’藉由將熔融玻璃保持為溫度、組成極 均一之狀態供給至浮浴槽而可獲得高品質之玻璃製品。 [先前技術文獻] [專利文獻] [專利文獻1]曰本專利特開2008-539151號公報 【發明内容】 [發明所欲解決之問題] 根據上述熔融玻璃之移送方法，熔融玻璃係以供給管移 送至熔融玻璃供給部，因此如上所述可獲得防止熔融玻璃 於移送中與周圍空氣接觸、及玻璃成分之蒸發，進而可自 漏斗狀展開部之扁平開口部均一地供給移送而來之熔融玻 璃之優異效果。 然而，專利文獻1之方法中供給管配置為水平，因此若 以該供給管連接熔融玻璃製作區域與浮式玻璃製造裝置之 熔融玻璃供給部則存在如下問題。即，熔融玻璃製作區域 與洋式玻璃製造裝置之熔融玻璃供給部中之熔融玻璃之位 準保持為相同，因此作為熔融玻璃之取入口之該供給管之 上游端’不得不與作為供給管之下游端4漏斗狀展開部之 開口部之高度一致而連接於熔融玻璃製作區域。因此，供 給管之上游端必需連接於熔融玻璃製作區域之相對高之位 置，即接近熔融玻璃製作區域之熔融玻璃之表層部之位 置。然而’炫融玻璃製作區域中之溶融玻璃之表層部與下 152177.doc 201124352 大多 層部相比通常微小之氣泡或異物等之混入比例較高 並非為良好之熔融玻璃。 =此，專利文獻i之方法中難以將該氣泡等之混入比例 交:之炼融玻璃自接近於熔融玻璃製作區域之表層部之相 對鬲的位置取出，⑽而難以將熔融玻璃製作區域之下層部 之良好的溶融玻璃移送至浮式玻璃製造裝置之炫融玻= 給部。進而’使供給管配置為水平，因此於混入有氣泡等 之溶融玻璃已被取出之情料，該㈣玻璃以供給管直接 移送至浮式玻璃製造裝置之熔融麵供給部並供給至浮浴 槽之熔融錫上。其結果’難以獲得實質上未含有氣泡等之 咼品質之浮式玻璃。 又，如此水平配置之供給管中，溶融玻璃於水平方向流 動且具有相當之黏性’因此於流動中之溶融玻璃產生氣泡 (氣體)之情形時，難以將該氣泡(氣體)引導至供給管之頂 端並使之於熔融玻璃之表層浮起而放出。 本發明係鑒於上述情況而完成者’其目的在於提供一種 熔融玻璃之供給裝置，其使上述供給管朝㈣玻璃供給部 保持向上傾斜而配置，藉此將供給管之上游端連接於熔融 玻璃製作區域之相對下部以便取出下層部之良好之溶融玻 璃，又於將取出之溶融玻璃自@融玻璃製作區域以該供給 管移送至熔融玻璃供給部之期間，利用供給管之向上傾斜 而使混入於熔融玻璃中之氣泡向供給管之頂端側移行來除 去’從而可料含有氣狀良好之熔融玻璃供給至浮式玻 璃之成形部。 152I77.doc -5. 201124352 [解決問題之技術手段] 本發明係絲融玻璃以供給f自熔融玻璃製作區域移送 至浮式玻璃製造裝置之熔融玻璃供給部之溶融玻璃供給裝 置之改良，其藉由以下方法而實現上述目的：於上述供^ 管之下游側形成有朝前端之開口部以特定角度向左右方向 ^開且剖面形狀為逐漸扁平化之扇形狀部，且使該扇形狀 部朝上述熔融玻璃供給部向上方傾斜。 即，本發明提供以下所示之熔融玻璃之供給裝置。 ⑴-種㈣玻璃之供給裝置，其特徵在於包括：供給管， 其用以將熔融玻璃自玻璃製作區域移送至浮浴槽卬⑽ 心h)之炼融玻璃供給部；及_門（tweei)，其與上述供給 管之開口部相對向地設置於上述浮浴槽之上述炼融玻璃供 給部，用以調節向上述浮浴槽之溶融玻璃供給量；且上述 供給管之上述開口部配置於較上述玻璃製作區域之溶融玻 璃位準低之位置’上述供給管具有朝前端之上述開口部以 特定角度向左右方向展開之扇形狀部，該扇形狀部係朝上 述開口部使剖面形狀逐漸扁平化且向上方傾斜。 (2) 如上述！之熔融玻璃之供給裝置，其中，上述扇形狀部 之上游端之剖面形狀為圓形或橢圓形狀。 (3) 如上述1或2之熔融玻璃之供給裝置，其中，上述扇形狀 部之下游端之剖面形狀為長方形狀或橢圓形狀。 (4) 如上述⑴中任-項之溶融玻璃之供給裝置，其中，上 述供給管包括導入管部，且上述扇形狀部之上游端連接於 該導入管部。 152177.doc * 6 - 201124352 (5)如上述】至艸任—項之熔融 上述扇形狀部之下游端部分設置有水平、Λ令，於 二上述1至5令任—項之炫融玻 ： 述扇形狀部之上游端之剖面積與下游端=置’其中，上 0.7〜1.3。 游^之剖面積之比為 ⑺如上述1至6令任一項之熔融破璃之供 述供仏普夕μ.+. Ββ 、展置，其中’上 …之上述開口部與上述爐閘 ⑻如上述】至7中杯^ ⑽為〇〜30mm。 •十·… 令任一項之熔融破璃之供給裝置，1中，上 述扇形狀部之頂端之向上傾斜角度為2〜30度。、 (9) 如上述⑴+任―項之㈣玻璃之供給裝置， 述扇形狀部之左右方向之展開角度為ig〜45度。- 其t (10) 如上述1至9中任—項之炼融玻璃之供給裝置 上述供給管係藉由通電加熱而保持於固定溫度。 (11) 如上述1至1〇中任一項之熔融玻璃之供給裝置 上述供給管包含翻或始合金。 其中 (12) 如上述中任—項之㈣玻璃之供給裝置 上述供給管包含由鉑或鉑合金覆蓋之材料。201124352 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a device for supplying a molten bunker to a float bath of a floating glass manufacturing apparatus. [Prior Art] The foreign glass is transferred to the molten glass supply unit of the floating glass manufacturing apparatus, and the molten glass transferred to the molten glass supply unit is supplied to the floating bath. On the molten tin, it is formed into a glass ribb〇n. As a transfer apparatus of the molten glass, a molten glass flow path in which a groove is opened in an upper portion is used, and Patent Document 1 discloses a device in which a molten glass produced by a supply pipe in a molten glass production region is transferred to a floating type. A molten glass supply unit of a glass manufacturing apparatus. As shown in Fig. 4, the molten glass transfer device is such that the supply pipe 18 having the funnel-shaped development portion 17 on the downstream side is horizontally placed on the lower side of the height 19 of the molten glass in the molten glass production region. Between the molten glass production region and the molten glass supply portion of the floating glass manufacturing device, the molten glass is transferred from the production region to the supply pipe 18 and supplied to the molten glass supply portion from the opening of the funnel. The molten material is supplied, and the glass is introduced into the float bath 22 while flowing downward through the supply passage 21 while adjusting the amount of molten glass by a slider 20. In the molten glass transfer device, the molten glass is transferred to the molten glass supply portion by the supply tube, so that the molten glass can be prevented from coming into contact with the surrounding air during the transfer. Therefore, it is possible to prevent the radiation of the heat of the molten glass having a high temperature formed by using a glass substrate such as an LCD (liquid crystal dispUy), and the glass containing a component such as boric acid which is easily evaporated. In the composition, evaporation of the component can be prevented. By supplying the molten glass to a temperature and the composition is extremely uniform, it is supplied to the float bath to obtain a high-quality glass product. [Prior Art Document] [Patent Document 1] [Patent Document 1] JP-A-2008-539151 SUMMARY OF INVENTION [Problems to be Solved by the Invention] According to the method for transferring molten glass, a molten glass is used as a supply tube. Since it is transferred to the molten glass supply part, as described above, it is possible to obtain molten glass which can prevent the molten glass from coming into contact with the surrounding air during the transfer and evaporation of the glass component, and can be uniformly supplied and transferred from the flat opening of the funnel-shaped development portion. Excellent effect. However, in the method of Patent Document 1, the supply pipe is disposed horizontally. Therefore, when the molten glass production region and the molten glass supply portion of the floating glass manufacturing device are connected by the supply pipe, there are the following problems. In other words, the molten glass production region and the molten glass supply portion of the foreign glass manufacturing device are kept at the same level, so that the upstream end of the supply pipe as the inlet of the molten glass has to be downstream of the supply pipe. The opening of the funnel-shaped expansion portion of the end 4 has the same height and is connected to the molten glass production region. Therefore, the upstream end of the supply pipe must be connected to a relatively high position in the molten glass producing region, i.e., near the surface portion of the molten glass in the molten glass producing region. However, the surface layer portion of the molten glass in the glazed glass production region is higher than the usual small bubbles or foreign matter in many layers, and is not a good molten glass. = In the method of Patent Document i, it is difficult to mix the bubbles or the like into a ratio: the smelting glass is taken out from a position close to the surface of the surface portion of the molten glass production region, and (10) it is difficult to form the lower layer of the molten glass production region. The good molten glass of the part is transferred to the glass of the floating glass manufacturing device. Further, 'the supply pipe is disposed horizontally. Therefore, the molten glass in which bubbles or the like are mixed is taken out, and the (four) glass is directly transferred to the molten surface supply portion of the floating glass manufacturing apparatus by the supply pipe and supplied to the floating bath. On molten tin. As a result, it is difficult to obtain a floating glass which does not substantially contain the quality of bubbles or the like. Further, in the supply pipe arranged horizontally, the molten glass flows in the horizontal direction and has a relatively high viscosity. Therefore, when a bubble (gas) is generated in the molten glass in the flow, it is difficult to guide the bubble (gas) to the supply pipe. The top end is floated and released on the surface of the molten glass. The present invention has been made in view of the above circumstances, and an object thereof is to provide a supply device for molten glass in which the supply pipe is disposed to be inclined upward toward the (four) glass supply portion, whereby the upstream end of the supply pipe is connected to the molten glass. The lower part of the area is taken out to take out the good molten glass of the lower layer, and the molten glass to be taken out is transferred from the @fused glass production area to the molten glass supply part by the supply pipe, and is mixed by the upward inclination of the supply pipe. The bubbles in the molten glass are moved toward the tip end side of the supply tube to be removed, so that the molten glass having a good gas content can be supplied to the molded portion of the floating glass. 152I77.doc -5. 201124352 [Technical means for solving the problem] The present invention is a modification of a molten glass supply device in which a molten glass is supplied from a molten glass production region to a molten glass supply portion of a floating glass manufacturing device. The above-described object is achieved by the following method: a fan-shaped portion in which the opening portion toward the front end is opened at a specific angle in the left-right direction and the cross-sectional shape is gradually flattened is formed on the downstream side of the supply tube, and the fan-shaped portion is oriented toward The molten glass supply portion is inclined upward. That is, the present invention provides a supply device for molten glass shown below. (1) A seed supply device of (4), characterized by comprising: a supply pipe for transferring molten glass from a glass making region to a smelting glass supply portion of a float bath 10 (10) heart h); and a _ door (tweei), The molten glass supply unit is disposed in the float glass supply portion of the float bath so as to face the opening of the supply tube to adjust the supply amount of the molten glass to the float bath; and the opening of the supply tube is disposed in the glass The position of the molten glass in the production region is low. The supply tube has a fan-shaped portion that is expanded toward the left and right at a predetermined angle toward the opening, and the fan-shaped portion gradually flattens the cross-sectional shape toward the opening. The square is tilted. (2) As above! In the molten glass supply device, the cross-sectional shape of the upstream end of the fan-shaped portion is circular or elliptical. (3) The apparatus for supplying molten glass according to the above 1 or 2, wherein the cross-sectional shape of the downstream end of the fan-shaped portion is a rectangular shape or an elliptical shape. (4) The apparatus for supplying molten glass according to any of the above (1), wherein the supply pipe includes an introduction pipe portion, and an upstream end of the fan-shaped portion is connected to the introduction pipe portion. 152177.doc * 6 - 201124352 (5) As described above, the downstream end portion of the fan-shaped portion of the melting portion is provided with a level, a command, and the above-mentioned 1 to 5 command-by-item: The cross-sectional area of the upstream end of the fan-shaped portion and the downstream end = set 'where 0.7 to 1.3. The ratio of the cross-sectional area of the tour is (7) the confession of the molten glass of any one of the above 1 to 6 is supplied to the Puxi μ.+. Ββ, the display, wherein the opening of the upper part and the above-mentioned furnace gate (8) As above] to 7 cups ^ (10) is 〇 ~ 30mm. • Ten... The apparatus for supplying molten glass of any one of them, wherein the upward inclination angle of the tip end of the fan-shaped portion is 2 to 30 degrees. (9) In the above-mentioned (1) + (4) glass supply device, the development angle of the fan-shaped portion in the left-right direction is ig to 45 degrees. - t (10) The supply device of the molten glass according to any one of the above 1 to 9 wherein the supply pipe is maintained at a fixed temperature by electric heating. (11) The supply device of the molten glass according to any one of the above 1 to 1 above, wherein the supply pipe comprises a turning or starting alloy. Wherein (12) (4) The supply device of the glass of the above-mentioned item (IV) The above-mentioned supply pipe comprises a material covered with platinum or a platinum alloy.
[發明之效果J 根據本發明，將炼融破璃自溶融玻璃製作區域以供給管 移送至浮式玻璃製造裝置之炼融玻璃供給部，因此與以供 給管移送溶融玻璃之先前之炼融玻璃供給裝置相同可將 移送中之熔融玻璃保持於不具有自由表面之密閉狀態，因 此可防止熔融玻璃與周圍空氣接觸而冷卻或者易蒸發之玻 璃成分揮發’由此可於溫度及組成均一之狀態下供給熔融 152177.doc 201124352 玻璃 又’於供給管之下游側設置有朝前端之開口部以特定角 度向左右方向展開且剖面形狀逐漸扁平化之扇形狀部，且 使該扇形狀部朝開σ部向上方傾斜，因此可相應於該傾斜 ^刀而使供給管之上游端連接於熔融玻璃製作區域之相對 下。ρ，由此可自熔融玻璃製作區域取出下層部之氣泡等之 混入比例較小之良好的熔融玻璃。 進而，於將取出之熔融玻璃自熔融玻璃製作區域以該供 ’·-。管移送至熔融玻璃供給部之期間，可使熔融玻璃中所產 生而混入之氣泡（氣體）一面藉由浮力向上方浮起，一面藉 由流過扇形狀部之向上傾斜部之熔融玻璃而有效果地向下 游側排出，因此可不使氣泡滞留於扇形狀部中。通常，供 給至浮浴槽之㈣玻璃之黏度為1()3_5〜1()4 dPasA右而較 高，因此成為氣泡浮起時之阻力，但根據本發明，因扇形 狀部具有向上傾斜，因此可藉由作用於氣泡之浮力與熔融 玻璃之傾斜方向之流動之相加而將氣泡有效率地向扇形狀 部之頂端側引導’進而該些氣泡於扇形狀部之下游端浮起 於熔融玻璃之表層，因而可於將熔融玻璃導入至浮浴槽之 前放出氣泡。 可將熔融破璃保持 又，藉由對供給管通電來進行加熱而 於固定之特定溫度。 【實施方式】 厂 八到个贯明炙貫施形处疋”說明。 圖1係本發明之-實施形態之炫融麵供給裝置之剖 I52I77.doc • 8 · 201124352 說明圖，圖2係該熔融玻璃供給裝置之供給管之平面圖。 如圖1所示於熔融玻璃製作區域6中所獲得之熔融玻璃藉 由供給管1而自熔融玻璃製作區域6移送至浮式玻璃成形裝 置7之熔融玻璃供給部5,並自該熔融玻璃供給部5供給至 浮浴槽ίο之熔融錫丨丨上而成形為浮式玻璃12。更具體而 吕，於熔融玻璃製作區域6中使玻璃原料熔解而獲得之熔 融玻璃，進而於熔融玻璃製作區域6中充分澄清，並且冷[Effect of the Invention According to the present invention, the smelting glass-free self-melting glass production region is transferred from the supply tube to the smelting glass supply unit of the floating glass manufacturing apparatus, and thus the previous smelting glass which transfers the molten glass by the supply tube The same supply means can keep the molten glass in the transfer state in a sealed state without a free surface, thereby preventing the molten glass from being cooled by contact with the surrounding air or volatilizing the glass component which is easy to evaporate, thereby being able to be uniform in temperature and composition. Supply-melting 152177.doc 201124352 The glass is further provided with a fan-shaped portion which is opened toward the left-right direction at a predetermined angle and has a flattened cross-sectional shape at the downstream end of the supply pipe, and the fan-shaped portion is opened toward the σ portion. It is inclined upward, so that the upstream end of the supply pipe can be connected to the opposite side of the molten glass production region corresponding to the inclined blade. ρ, whereby a good molten glass having a small mixing ratio of bubbles or the like in the lower layer portion can be taken out from the molten glass production region. Further, the molten glass to be taken out is supplied from the molten glass to the area. While the tube is being transferred to the molten glass supply unit, the bubbles (gas) which are generated in the molten glass can be floated upward by buoyancy, and flow through the molten glass of the upward inclined portion of the fan-shaped portion. Since it is discharged to the downstream side in effect, it is possible to prevent bubbles from remaining in the fan-shaped portion. Usually, the viscosity of the (four) glass supplied to the floating bath is 1 () 3_5 〜 1 () 4 dPasA is right and high, and therefore becomes a resistance when the bubble floats, but according to the present invention, since the fan-shaped portion has an upward inclination, The bubble can be efficiently guided toward the tip end side of the fan-shaped portion by the addition of the buoyancy acting on the bubble and the flow in the oblique direction of the molten glass. Further, the bubbles float on the downstream end of the fan-shaped portion on the molten glass. The surface layer thus allows bubbles to be released before the molten glass is introduced into the float bath. The molten glass can be held and heated at a specific temperature to be fixed by energizing the supply tube. [Embodiment] The description of Fig. 1 is a cross-sectional view of the sleek surface supply device according to the embodiment of the present invention. I52I77.doc • 8 · 201124352 A plan view of the supply pipe of the molten glass supply device. The molten glass obtained in the molten glass production region 6 as shown in Fig. 1 is transferred from the molten glass production region 6 to the molten glass of the floating glass forming device 7 by the supply pipe 1. The supply unit 5 is supplied from the molten glass supply unit 5 to the molten tin of the float bath 而, and is formed into the floating glass 12. More specifically, the glass raw material is melted in the molten glass production region 6 to obtain the glass raw material. The molten glass is further clarified in the molten glass production region 6 and is cold
卻至可獲得適於浮式玻璃之成形之黏度之特定溫度，I 後，藉由供給管1而自熔融玻璃製作區域6取出並移送至熔 融玻璃供給部5。然後，所移送之熔融玻璃由設置於該熔 融玻璃供給部5之爐閘門8調整熔融玻璃量而作為平坦且厚 度固定之熔融玻璃層於熔融玻璃供給部5之舌瓦⑴ρ Η。” 上流動，且溢流過該舌瓦9而供給至浮浴槽1〇之炼融和 上。 本發明中，熔融玻璃製作區域6係實施玻璃原料之熔 解、炼解而得之熔融玻璃之澄清及冷卻等之部位之總稱， 但取出熔融玻璃係如上所述實施澄清及冷卻後之步驟。 本發明中上述供給管i之開口部16配置於較破璃製作區 域6之溶融玻璃位準（溶融玻璃之液面）13低之位置，供給管 1於下游側具有扇形狀部3。該扇形狀部3如圖2所示使二 玻璃之流路自寬度窄之上游端朝前端（下游端）之開口㈣ 以特定角度θ2向左右方向展開’且其剖面形狀朝開口部Μ 逐漸扁平化’並且如圖以斤示朝開口部16向上方傾斜。使 該扇形狀部3如此般向上傾斜，藉此可使扇形狀部3之上游 152177.doc 201124352 端之尚度低於溶融玻璃供給部5，由此供給管1之上游側之 高度降低’因此可將玻璃製作區域6中之熔融玻璃自較熔 融玻璃位準13相對低之位置以供給管1取出。 該熔融玻璃供給裝置中，熔融玻璃供給部5與玻璃製作 區域6由供給管1連通，因此熔融玻璃供給部5中之熔融玻 璃如圖1所示被保持在與玻璃製作區域6之熔融玻璃位準13 相同之高度。通常，接近於玻璃製作區域6之熔融玻璃位 準13之表層之熔融玻璃，與較其更靠下層之熔融玻璃相比 含有較多之氣泡等，且因一部分玻璃成分之蒸發而使得成 分亦不穩定。因此，若如先前般自接近表層之位置取出熔 融玻璃’則無論如何均會產生容易混入氣泡等之問題。 本發明中’藉由使扇形狀部3向上傾斜而降低供給管i之 上游側，從而可與先前相比降低熔融玻璃之取出位置。由 此，如圖1所示可自較熔融玻璃位準13僅低a之位置取出熔 融玻璃。該情形時，a之長度主要取決於熔融玻璃製作區 域6中之熔融玻璃之深度（熔融玻璃位準13之高度），作為玨 之大小，通常較佳為250〜900 mm左右。若將供給管j之熔 融玻璃之取出位置設為該範圍，則可避開熔融玻璃位準U 附近之熔融玻璃而取出氣泡等較少之良好的熔融玻璃。進 而，由於供給管1之上游側降低，因而可於扇形狀部3形成 所期望之向上傾斜。通常’供給至浮浴槽之熔融玻璃之黏 度為1 03 5〜104 dPa，S左右而較高，因此於以供給管丨移送中 之熔融玻璃中所產生之氣泡（氣體）浮起時成為阻力，但可 藉由上述扇形狀部3而形成向上傾斜，由此作用於氣泡之 152177.doc 】0- 201124352 汗力與熔融玻璃之傾斜方向之流動作用相加，因而可將氣 泡有效率地向扇形狀部3之頂端側引導並使之浮起於熔融 破璃之表層而放出。 μ 本發明之供給管1由上述扇形狀部3及設置於該扇形狀部 3之上游側之導入管部形成。本例之供給管1係將扇形狀部 3連接於，設置在水平方向之圓筒管2而形成。即，將扇形狀 部3連接於上游端與熔融玻璃製作區域6連接之圓筒管2之 下游端，將熔融玻璃製作區域6之熔融玻璃以圓筒管2取出 並導入至扇形狀部3，且自該扇形狀部3(供給管丨）之開口部 16送出至熔融玻璃供給部5。因此，作為與圓筒管2之連接 部之扇形狀部3之上游端之剖面形狀係對應於圓筒管2而為 圓形，但自此向前之剖面形狀隨著扇形狀部3之扁平化使 高度h逐漸減少而變化為橢圓狀，於開口部16中基本形狀 成為於水平方向為較長之長邊之長方形狀或長軸於水平方 向延伸之橫長之橢圓形狀。尤其，藉由使剖面形狀為長方 形狀之開口部之橫寬（長邊之長度）與熔融玻璃供給部5之寬 度（圖1中與紙面垂直之方向之寬度）大致一致，而於可將熔 融玻璃作為寬度與熔融玻璃供給部5之寬度大致相同且厚 度於水平方向大致固定之熔融玻璃流而送出至熔融玻璃供 給部5的方面較佳。 右使上述供給管1如上所述由扇形狀部3與本例之圓筒管 2般之導入管部形成，則可獲得以下優點。即，可藉由改 變導入管部之長度而容易地使供、給管1之長度和溶融玻璃 製作區域6與熔融玻璃供給部5之間隔一致。又，藉由將導 152177.doc 201124352 入呂部配置於大致水平方向，可自熔融玻璃製作區域6順 利地取出熔融玻璃，進而可根據需要而於該導入管部附設 例如搜拌裝置。再者，本例中使用圓筒管2作為上述導入 管。P ’且將該圓筒管配置於水平方肖，但作為導入管部， 亦可為例如剖面形狀為橢圓形狀或矩形狀之管狀體。又， 導入管部未必要配置於水平方向，亦可於溶融玻璃之流動 方向朝上輕微傾斜。再者，於剖面形狀為橢圓形狀或矩形 狀之導入管部之情形肖，與料入管部連接之扇形狀部^ 之上游端之剖面形狀亦與導入管部一致而成為橢圓形狀或 矩形狀。 上述扇形狀部3中，開口部16之剖面積較佳為與作為與 圓筒管2之連接部之上游端之剖面積大致相同。具體而 5，扇形狀部3之上游端之剖面積（Μι)與下游端（開口部“） 之剖面積（Μ,)之比⑽/My較佳為3。若（Μ〗/%)為 〜1.2則更佳，若為〇.9〜M則更佳，若為〇95〜1〇5則尤 其佳。藉由如此般設定扇形狀部3之上游端與下游端之剖 面積，不會使自圓筒管2送來之熔融玻璃停滞而可自開口 部16始終穩定地送出至熔融玻璃供給部5。而且，就扇形 狀部3之與熔融玻璃之移送方向正交之方向之剖面積而 言，即便剖面形狀如上述般例如自圓形狀逐漸變化為長方 形狀或橢圓形狀，實質上亦不會變化而與Μι、m2相等。 又，較佳為於供給管1之接近扇形狀部3之開口部16之下 游端部分設置有水平狀之平坦部4。扇形狀部3具有向上傾 斜角度，因此扇形狀部3中之熔融玻璃自開口部16大致以 152177.doc 201124352 。亥ί貝斜角度送出至熔融玻璃供給部5。因此，於扇形狀部3 之下游端部分未設置有平坦部4之情形時，熔融玻璃直接 作為向上熔融玻璃流而自開口部16送出至熔融玻璃供給部 5之後，與對向於開口部16而設置之後述之爐閘門8衝突， 並於該爐閘門面反沖而將方向改變為向上，因此存在熔融 玻璃供給部5中之熔融玻璃產生紊亂之顧慮。然而，若於 扇形狀部3(供給管丨）之開口部分設置有平坦部4，則可於該 平坦部4使熔融玻璃之流動方向改變為水平方向並且可 使熔融玻璃整流後送出至熔融玻璃供給部5，因而不會產 生紊亂。該情形時，為了能夠於扇形狀部3之出口確實地 進行該整&，較佳為平坦部4具有固定長度χ，1其剖面形 狀及剖面積於溶融玻璃之料方向上相同。上述χ會根據 扇形狀部3之大小或傾斜角度等發生變化而不受限定但 較佳為約50〜20〇mni左右。 本發明之熔融玻璃供給部5中，供給管丨（扇形狀部之 開口部16較佳為相對於熔融玻璃位準13而為如下關係。自 ^狀43之口部16之上表面至溶融玻璃位準為止之 南度b較佳為5〜45〇 _，又其上限較佳為約遍_。若匕 小於5随’則於表面異質化之原料會混人熔融玻璃之主流 、田右b超過、..勺500 mm，則難以維持該部分之溶融玻璃之 X故而人佳。又，自開口部16之下表面（舌瓦9之上表 面）至溶融玻璃位準13為止之高度e較佳為ΠΗ)〜副麵，更 佳為350〜550 _。麵c之最小限度為_ _，於利用爐 開門控制炼融玻璃之流量之方面較佳，若b超過_麵， 152177.doc -13. 201124352 則存在難以利用爐閘門控制熔融玻璃之流量之顧慮。 接下來，對扇形狀部3之向上傾斜角度及左右方向之展 開角度進行說明。本發明中，由扇形狀部3之頂端14之傾 斜角度Θ】規定扇形狀部3之向上傾斜角度。於此，扇形狀 部3之頂端14如圖2所示係於扇形狀部3之俯視下為熔融玻 璃之移送方向之中心線15所處之扇形狀部3之熔融玻璃流 路的頂上部分’於如本例般在扇形狀部3之下游端部分設 置有平坦部4之情形時係除該平坦部4以外之區域之熔融玻 璃流路之頂上部分。再者，作為由扇形狀部3之頂端14之 傾斜角度Θ〗規定扇形狀部3之向上傾斜角度之理由可列舉 如下等：扇形狀部3之高度h於溶融玻璃之移送方向上遞 減’因此扇形狀部3之傾斜角度於上表面與下表面不同， 從而必需選定某基準’及於將炫融玻璃送出至溶融玻璃供 給部5時限制熔融玻璃流之上限之上表面之作用較大。 本發明中’扇形狀部3之頂端14之傾斜角度0〗相對於水 平方向而較佳為2〜30度，更佳為2-20度，更佳為2〜7度。 若0〗小於2度’則不會使扇形狀部3之上游端（與圓筒管2之 連接部）之位置相對於熔融玻璃供給部5及熔融玻璃位準13 而充分降低，因此存在無法避開氣泡等較多且因玻璃成分 之蒸發而使成分不穩定之表層部之熔融玻璃而取出良好的 熔融玻璃之顧慮。又，若θ]超過3〇度，則供給管i之熔融 玻璃之取出位置過低，不僅無法將熔融玻璃自熔融玻璃製 作區域之適當位置取出，亦會使供給管丨急遽傾斜，因而 難以順利地移送熔融玻璃。 152177.doc •14- 201124352 另一方面，扇形狀部3之左右方向之展開角度θ2較佳為 10〜45度。若Θ2小於10度，則於尤其如本例般扇形狀部3之 上游端為圓形之情形時’該上游端之橫寬對應於圓筒管2 之直徑而比較小，因此扇形狀部3(供給管丨）之開口部16無 法獲得充分之展開，難以使開口部丨6之橫寬適於熔融玻璃 供給部5之橫寬。又，若Θ2大於45度，則自圓筒管2送來之 熔融玻璃會於扇形狀部3之上游端向橫方向急遽展開，因 此於方向變化較大之兩端之熔融玻璃流產生遲滯，從而無 法均一地移送熔融玻璃。自該方面而言匕更佳為15〜2〇 度。 本發明中作為供給管1之材質，較佳為耐熱性及相對於 熔融玻璃之耐腐純較強之I❹合金（例如姥合金）、 或者由翻或始合金覆蓋之材料。翻或始合金於該種用途中 =優異之成績’尤其適於如LCD用玻璃基板般成形溫度 熔融玻璃。作為由始或始合金覆蓋之材料，可例干 由链或㉝合金覆蓋磚等耐熱構件之内表面者。 切$戶 材料形成之供給管1之導入管 π及/或扇形狀部較佳為藉 加熱係對鈾或銘合金直接、s雷電被均一地加熱。通電 之材料為導電性材料時；此於由翻或始合金覆蓋 璃製作區域6取屮 對5亥材料進行通電。自熔融玻 璃供給部玻㈣供給管1中向炫融破 移：¾之期間，愈 a 止與空氣接觸所引妞…4元全隔斷，因而可防 電加熱而實=冷卻’並且藉由上述供給管1之通 貫質上破保持於均—溫度，且以適於成形之溫度 I52177.doc 201124352 移送至熔融玻璃供給部5。 本發明中，爐閘H8係與供給fl(扇形狀部取開 相對向地設置於熔融玻璃供給部5。該爐閘門8係如； 者··將具有與扇形狀部3之開口部16之橫寬及炼融玻填供 給部5之寬度(圖！中與紙面垂直之方向之寬度)大致相同之 寬度之耐熱構件，對向於扇形狀部3之開口部16而可升 地設置，#由使該爐閘門8上下移動來改變高度而可調節 供給至浮浴槽1〇之熔融玻璃量，又藉由自上方控制向熔融 玻璃供給部5送來之㈣玻璃’而可作為厚度於橫方向固 定之薄層之熔融玻璃層供給至浮浴槽1〇。又，藉由下降至 最低位置而可使浮浴槽之熔融玻璃之供給停止。 於將上述爐Μ門8對向於供給管！（扇％狀部3)之開口邛 16而設置之情形時，該爐閘門8與開口部16之間隙d較佳為 〇〜3〇 更佳為0〜20 _。於此，間隙⑻咖意味著 可儘量接近於扇形狀部3之開口部16來設置爐閘門8。這樣 可避免被供給管1密閉且向溶融麵供給部5移送而來之溶 融玻璃於該熔融玻璃供給部5接觸於周圍空氣，因此較佳 為間隙d儘量小。炫融玻璃供給部5之溶融玻璃於該間隙d 中形成自由表面，因此若該間隙d較大，則溶融玻璃與周 圍空氣接觸之面積增大而導致被冷卻或者一部分玻璃成分 蒸發。若間隙d大於30 mm，則該弊端.變得顯著’故而欠 佳。 本發明之-實施形態中’上述爐閘門8係可由銘或銘合 金覆蓋以二氧化碎玻璃陶究（熔融二氧化矽）等耐熱構件製 152177.doc •16· 201124352 作之主要部分而形成。而且，藉由與上述之供給^相同 地對該合金通電加熱，可將㈣融玻璃供給…移 送而來之溶融玻璃保持於特定溫度。該爐閘門8及供給p 之通電加熱可以周知之方法適當地進行。 以上’對本發明之一實施形態進行了說明但本發明並 不限定於此。圖3係表示本發明之扇形狀部3之其他實施形 態之概略縱剖面圖。該扇形狀部3朝開口㈣而全體向上 傾斜之基本形狀與圖1之扇形狀部3相同，但如圖3所示於 熔融玻璃之流路在炼融玻璃之移送方向朝上側輕微彎曲成 凸狀之方面不同，當然扇形狀部3之頂端Μ亦相同地彎 曲。即便扇形狀部3如此彎曲，亦因基本形狀與圖i之扇形 狀部3相同而可獲得相同之功能。再者，如此彎曲之扇形 狀部3之頂端14之傾斜角度01可^義為相對於連接彎曲部 分之兩端之直線17之水平方向的角度。 參照詳細且特定之實施形態來對本案進行了說明但熟 悉此技藝者當明白可於不脫離本發明之精神與範圍内進： 各種變更及修正。 本案係基於2009年1!月16曰申請之曰本專利申請案（日 本專利特願2__261362)者，並將其内容作為參照而併入 於此。 [產業上之可利用性] 本發明係可用作浮式玻璃製造裝置之熔融玻璃供給裝 置，尤其適於將成形溫度車交高、♦有易蒸發之玻璃成分之 溶融玻璃供給至浮浴槽。 152177.doc 201124352 【圖式簡單說明】 圖1係本發明之一實施形態之熔融玻壤供給 、置之剖面 說明圖； 圖2係圖1之供給管之平面圖； 之概略縱剖面 圖3係本發明之其他實施形態之供給管 圖；及 圖4係先前之溶融玻璃供給裝置之立體圖。 【主要元件符號說明】 152177.doc 1、18 供給管 2 圓筒管 3 扇形狀部 4 平坦部 5 熔融玻璃供給部 6 熔融玻璃製作區域 7 浮式玻璃成形裝置 8 爐閘門 9 舌瓦 10、22 浮浴槽 11 炼融錫 12 浮式玻螭 13 炫融玻場位準 14 頂端 15 中心線 16 開口部 loc • 18 - 201124352 17 19 20 21 22 b c d h x Θ i ' 02 連接彎曲部分之兩端之直線 溶融玻璃之高度 滑塊 供給通道 浮浴槽 自扇形狀部3之開口部16之上表面至 熔融玻璃位準13為止之高度 自開口部16之下表面（舌瓦9之上表 面）至熔融玻璃位準13為止之高度 爐閘門8與開口部16之間隙 扇形狀部3之高度 固定長度 角度 152177.doc -19-However, a specific temperature suitable for the viscosity of the forming of the floating glass can be obtained, and after that, it is taken out from the molten glass production region 6 by the supply pipe 1 and transferred to the molten glass supply portion 5. Then, the transferred molten glass is adjusted by the furnace gate 8 provided in the molten glass supply unit 5 to be a flat and thick fixed molten glass layer on the tongue (1) ρ 熔融 of the molten glass supply unit 5. In the present invention, the molten glass production region 6 is a method for melting and refining the glass raw material to obtain clarification of the molten glass, and flowing over the tongue and groove 9 . In the present invention, the opening portion 16 of the supply pipe i is disposed at a molten glass level (melt glass) of the glass making region 6 in the present invention. At the position where the liquid level 13 is low, the supply pipe 1 has a fan-shaped portion 3 on the downstream side. The fan-shaped portion 3 has the flow path of the two glass from the upstream end to the front end (downstream end) of the narrow width as shown in FIG. The opening (4) is expanded in the left-right direction at a specific angle θ2 and its cross-sectional shape is gradually flattened toward the opening Μ, and is inclined upward toward the opening 16 as shown in the figure. The fan-shaped portion 3 is inclined upward as described above. The 152177.doc 201124352 end of the fan-shaped portion 3 can be made lower than the molten glass supply portion 5, whereby the height of the upstream side of the supply tube 1 is lowered', so that the molten glass in the glass-made region 6 can be self-melted. glass The position where the level 13 is relatively low is taken out by the supply pipe 1. In the molten glass supply device, since the molten glass supply portion 5 and the glass forming region 6 are communicated by the supply pipe 1, the molten glass in the molten glass supply portion 5 is as shown in Fig. 1. It is shown to be at the same height as the molten glass level 13 of the glass-making region 6. Generally, the molten glass close to the surface of the molten glass level 13 of the glass-making region 6 is compared with the molten glass of the lower layer. Since a large amount of bubbles and the like are contained, and the composition of the glass component is unstable due to evaporation of a part of the glass component, if the molten glass is taken out from the position close to the surface layer as before, there is a problem that bubbles are easily mixed in any case. In the invention, the upstream side of the supply pipe i is lowered by tilting the fan-shaped portion 3 upward, so that the removal position of the molten glass can be lowered as compared with the prior art. Thus, as shown in Fig. 1, the position of the molten glass can be 13 The molten glass is taken only at a position lower than a. In this case, the length of a mainly depends on the depth of the molten glass in the molten glass production region 6 (the height of the molten glass level 13) The size of the crucible is usually about 250 to 900 mm. When the position at which the molten glass of the supply pipe j is taken out is within this range, the molten glass near the molten glass level U can be removed to take out bubbles or the like. There is less good molten glass. Further, since the upstream side of the supply pipe 1 is lowered, a desired upward inclination can be formed in the fan-shaped portion 3. Usually, the viscosity of the molten glass supplied to the floating bath is 1 03 5 to 104. Since the dPa, S is high in the right and left, it becomes a resistance when the bubble (gas) generated in the molten glass supplied by the supply pipe is floated, but the upward inclination can be formed by the above-described fan-shaped portion 3, thereby acting In the bubble 152177.doc 】 0- 201124352 The sweat force is added to the flow direction of the molten glass in the oblique direction, so that the bubble can be efficiently guided to the tip end side of the fan-shaped portion 3 and floated on the molten glass. The surface is released. μ The supply pipe 1 of the present invention is formed by the above-described fan-shaped portion 3 and an introduction pipe portion provided on the upstream side of the fan-shaped portion 3. The supply pipe 1 of this example is formed by connecting the fan-shaped portion 3 to the cylindrical tube 2 provided in the horizontal direction. In other words, the fan-shaped portion 3 is connected to the downstream end of the cylindrical tube 2 that is connected to the molten glass production region 6 at the upstream end, and the molten glass of the molten glass production region 6 is taken out by the cylindrical tube 2 and introduced into the fan-shaped portion 3, The opening 16 of the fan-shaped portion 3 (supply pipe) is sent to the molten glass supply portion 5. Therefore, the cross-sectional shape of the upstream end of the fan-shaped portion 3 as the connection portion with the cylindrical tube 2 is circular corresponding to the cylindrical tube 2, but the cross-sectional shape from the front is flat with the fan-shaped portion 3 The height h is gradually decreased to change into an elliptical shape, and the basic shape in the opening portion 16 is a rectangular shape in which the long side in the horizontal direction is long or an elliptical shape in which the long axis extends in the horizontal direction. In particular, the width (the length of the long side) of the opening having a rectangular cross-sectional shape substantially coincides with the width of the molten glass supply portion 5 (the width in the direction perpendicular to the plane of the paper in Fig. 1), and the melting can be performed. The glass is preferably sent to the molten glass supply unit 5 as a molten glass flow having a width substantially the same as the width of the molten glass supply unit 5 and having a thickness substantially constant in the horizontal direction. When the supply tube 1 is formed by the fan-shaped portion 3 and the introduction tube portion like the cylindrical tube 2 of the present embodiment as described above, the following advantages can be obtained. That is, the length of the supply and supply pipe 1 and the interval between the molten glass production region 6 and the molten glass supply portion 5 can be easily matched by changing the length of the introduction pipe portion. Further, by arranging the guide 152177.doc 201124352 in the substantially horizontal direction, the molten glass can be smoothly taken out from the molten glass production region 6, and a feeding device can be attached to the introduction pipe portion as needed. Further, in this example, a cylindrical tube 2 is used as the introduction tube. P ’ and the cylindrical tube are disposed in a horizontal direction. However, the introduction tube portion may be, for example, a tubular body having a cross-sectional shape of an elliptical shape or a rectangular shape. Further, the introduction pipe portion is not necessarily arranged in the horizontal direction, and may be slightly inclined upward in the flow direction of the molten glass. Further, in the case where the cross-sectional shape is an elliptical or rectangular introduction tube portion, the cross-sectional shape of the upstream end of the fan-shaped portion connected to the material inlet portion is also elliptical or rectangular in conformity with the introduction tube portion. In the fan-shaped portion 3, the cross-sectional area of the opening portion 16 is preferably substantially the same as the cross-sectional area of the upstream end of the connecting portion with the cylindrical tube 2. Specifically, the ratio (10)/My of the cross-sectional area (Μι) of the upstream end of the fan-shaped portion 3 to the cross-sectional area (Μ) of the downstream end (the opening portion) is preferably 3. If (Μ)/% is It is more preferable that it is ～.9~M, and it is especially preferable if it is 〇95~1〇5. By setting the cross-sectional area of the upstream end and the downstream end of the fan-shaped portion 3 as such, The molten glass sent from the cylindrical tube 2 is stagnated and can be stably sent out from the opening 16 to the molten glass supply unit 5. Further, the cross-sectional area of the fan-shaped portion 3 in the direction orthogonal to the direction in which the molten glass is transferred In addition, even if the cross-sectional shape is gradually changed from a circular shape to a rectangular shape or an elliptical shape as described above, it does not substantially change and is equal to Μι and m2. Further, it is preferably in the vicinity of the fan-shaped portion 3 of the supply tube 1. The downstream end portion of the opening portion 16 is provided with a horizontal flat portion 4. The fan-shaped portion 3 has an upwardly inclined angle, so that the molten glass in the fan-shaped portion 3 is substantially 152177.doc 201124352 from the opening portion 16. The angle is sent to the molten glass supply portion 5. Therefore, at the downstream end of the fan-shaped portion 3 When the flat portion 4 is not provided, the molten glass is directly sent out from the opening portion 16 to the molten glass supply portion 5 as the upward molten glass flow, and is disposed to collide with the opening portion 16 to provide a furnace gate 8 to be described later. The back surface of the furnace gate is reversed and the direction is changed to the upward direction. Therefore, there is a concern that the molten glass in the molten glass supply portion 5 is disordered. However, a flat portion is provided in the opening portion of the fan-shaped portion 3 (supply tube). 4, the flow direction of the molten glass can be changed to the horizontal direction in the flat portion 4, and the molten glass can be rectified and sent to the molten glass supply portion 5, so that no turbulence occurs. In this case, in order to be able to be in the fan-shaped portion Preferably, the flat portion 4 has a fixed length χ, and the cross-sectional shape and the cross-sectional area thereof are the same in the direction of the molten glass. The above-mentioned χ is according to the size or inclination of the fan-shaped portion 3. The angle or the like is not limited, but is preferably about 50 to 20 〇mni. In the molten glass supply unit 5 of the present invention, the supply tube 丨 (the opening portion 16 of the fan-shaped portion is preferably The relationship b is the following relationship with respect to the molten glass level 13. The southness b from the upper surface of the mouth portion 16 of the shape 43 to the molten glass level is preferably 5 to 45 Å, and the upper limit is preferably about _. If 匕 is less than 5 with 'the raw material that is heterogeneous on the surface will be mixed with the mainstream of molten glass, the right b is over, and the spoon is 500 mm, it is difficult to maintain the X of the molten glass in this part. The height e from the lower surface of the opening portion 16 (the upper surface of the tongue tile 9) to the molten glass level 13 is preferably ΠΗ) to 副, and more preferably 350 to 550 _. The minimum of the surface c is _ _ In the case of using the furnace door to control the flow rate of the smelting glass, if b exceeds the _ surface, 152177.doc -13. 201124352 there is a concern that it is difficult to control the flow rate of the molten glass by the furnace gate. Next, the upward tilt angle of the fan-shaped portion 3 and the spread angle in the left-right direction will be described. In the present invention, the upward inclination angle of the sector shape portion 3 is defined by the inclination angle Θ of the tip end portion 14 of the fan-shaped portion 3. Here, the tip end portion 14 of the fan-shaped portion 3 is the top portion of the molten glass flow path of the fan-shaped portion 3 where the center line 15 of the direction in which the molten glass is transferred is in the plan view of the fan-shaped portion 3 as shown in Fig. 2 In the case where the flat portion 4 is provided at the downstream end portion of the fan-shaped portion 3 as in the present example, the upper portion of the molten glass flow path in the region other than the flat portion 4 is formed. In addition, the reason why the upward inclination angle of the sector shape portion 3 is defined by the inclination angle Θ of the tip end portion 14 of the fan-shaped portion 3 is as follows: the height h of the fan-shaped portion 3 is decreased in the direction in which the molten glass is transferred. The inclination angle of the fan-shaped portion 3 is different between the upper surface and the lower surface, so that it is necessary to select a certain reference 'and to restrict the surface of the upper surface of the molten glass flow when the molten glass is sent to the molten glass supply portion 5. In the present invention, the inclination angle 0 of the tip end 14 of the fan-shaped portion 3 is preferably 2 to 30 degrees, more preferably 2 to 20 degrees, and still more preferably 2 to 7 degrees with respect to the horizontal direction. When 0 is less than 2 degrees, the position of the upstream end of the fan-shaped portion 3 (the connection portion with the cylindrical tube 2) is not sufficiently lowered with respect to the molten glass supply portion 5 and the molten glass level 13, and thus it is impossible to There is a concern that the molten glass of the surface layer portion which is unstable due to evaporation of the glass component and which is unstable due to evaporation of the glass component is taken out, and the molten glass is taken out. Further, when θ] exceeds 3 〇, the position at which the molten glass of the supply pipe i is taken out is too low, and not only the molten glass cannot be taken out from the appropriate position in the molten glass production region, but also the supply pipe is slanted and tilted, which makes it difficult to smoothly. The molten glass is transferred to the ground. 152177.doc • 14- 201124352 On the other hand, the spread angle θ2 of the left and right direction of the sector shape portion 3 is preferably 10 to 45 degrees. If Θ2 is less than 10 degrees, the width of the upstream end is relatively small corresponding to the diameter of the cylindrical tube 2, especially when the upstream end of the fan-shaped portion 3 is circular as in this example, so the fan-shaped portion 3 The opening portion 16 of the (supply tube) cannot be sufficiently developed, and it is difficult to make the lateral width of the opening portion 6 suitable for the lateral width of the molten glass supply portion 5. In addition, when the crucible 2 is larger than 45 degrees, the molten glass sent from the cylindrical tube 2 is rapidly expanded in the lateral direction at the upstream end of the fan-shaped portion 3, so that the molten glass flow at both ends where the direction changes greatly is delayed. Therefore, the molten glass cannot be uniformly transferred. In this respect, 匕 is preferably 15 to 2 degrees. In the present invention, as the material of the supply pipe 1, a heat-resistant and I ❹ alloy (e.g., ruthenium alloy) which is highly resistant to corrosion by molten glass or a material covered by a tumbling or initial alloy is preferable. Turning or starting alloys in such applications = excellent results are particularly suitable for forming molten glass like glass substrates for LCDs. As the material covered by the initial or initial alloy, the inner surface of the heat-resistant member such as a brick may be covered by a chain or a 33 alloy. The inlet tube of the supply tube 1 formed by cutting the material π and/or the fan-shaped portion is preferably uniformly heated by the heating system for uranium or alloy, and s lightning. When the material to be energized is a conductive material; this is used to energize the material of the 5 ray material from the region 16 of the tumbling or initial alloy cover. From the molten glass supply part glass (4) in the supply tube 1 to the smashing and smashing: during the period of 3⁄4, the more the contact with the air is taken, the squirting of the girl is 4 yuan, so that it can be prevented from electric heating and is actually cooled. The passage of the supply pipe 1 is maintained at a uniform temperature, and is transferred to the molten glass supply portion 5 at a temperature suitable for forming I52177.doc 201124352. In the present invention, the furnace gate H8 is provided in the molten glass supply unit 5 so as to be opposite to the supply of the fan-shaped portion. The furnace gate 8 is provided with the opening portion 16 of the sector-shaped portion 3. The heat-resistant member having a width that is substantially the same as the width of the width of the smelting glass filling supply unit 5 (the width in the direction perpendicular to the paper surface in the drawing!) is set to be opposite to the opening portion 16 of the fan-shaped portion 3, # The amount of molten glass supplied to the floating bath 1 can be adjusted by changing the height by moving the furnace gate 8 up and down, and the thickness of the molten glass supplied to the molten glass supply unit 5 from above can be used as the thickness in the lateral direction. The fixed thin layer of molten glass is supplied to the float bath 1. Further, the supply of the molten glass in the float bath is stopped by lowering to the lowest position. The furnace door 8 is opposed to the supply tube! When the opening 邛 16 of the % portion 3) is provided, the gap d between the furnace gate 8 and the opening portion 16 is preferably 〇 〜 3 〇 more preferably 0 〜 20 _. Here, the gap (8) coffee means The furnace gate 8 is disposed as close as possible to the opening portion 16 of the fan-shaped portion 3. This avoids being Since the molten glass which is supplied to the molten surface supply unit 5 and which is supplied to the molten glass supply unit 5 is in contact with the surrounding air, the gap d is preferably as small as possible. The molten glass of the glazed glass supply unit 5 is in the gap. A free surface is formed in d, so if the gap d is large, the area of contact of the molten glass with the surrounding air is increased to cause cooling or evaporation of a part of the glass component. If the gap d is larger than 30 mm, the disadvantage becomes significant. Therefore, in the embodiment of the present invention, the above-mentioned furnace door 8 can be covered with a heat-resistant member such as oxidized cullet (melted cerium oxide), which can be covered by Ming or Ming alloy, 152177.doc •16·201124352 Further, by heating and heating the alloy in the same manner as the above-described supply, the molten glass supplied by the (four) molten glass supply can be maintained at a specific temperature. The electric heating of the furnace gate 8 and the supply p can be performed. The method of the present invention has been appropriately carried out. The above description of one embodiment of the present invention has been described, but the present invention is not limited thereto. Fig. 3 shows the fan-shaped portion 3 of the present invention. A schematic longitudinal cross-sectional view of another embodiment. The basic shape of the fan-shaped portion 3 inclined upward toward the opening (four) is the same as that of the fan-shaped portion 3 of Fig. 1, but the flow path of the molten glass is in the smelting glass as shown in Fig. 3. The direction in which the transfer direction is slightly curved toward the upper side is different, and the tip end of the fan-shaped portion 3 is also curved in the same manner. Even if the fan-shaped portion 3 is curved in this manner, the basic shape is the same as that of the fan-shaped portion 3 of FIG. The same function is obtained. Further, the inclination angle 01 of the tip end 14 of the fan-shaped portion 3 thus curved can be defined as an angle with respect to the horizontal direction of the straight line 17 connecting the both ends of the curved portion. Referring to the detailed and specific embodiment It is to be understood that those skilled in the art will recognize that various changes and modifications can be made without departing from the spirit and scope of the invention. The present application is based on a patent application filed on Jan. 16, 2009, the disclosure of which is hereby incorporated by reference. [Industrial Applicability] The present invention is a molten glass supply device which can be used as a floating glass manufacturing apparatus, and is particularly suitable for supplying molten glass having a high temperature at a forming temperature and having a glass component which is easy to evaporate to a floating bath. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing the supply and arrangement of molten glass of an embodiment of the present invention; FIG. 2 is a plan view of the supply pipe of FIG. 1; A supply tube diagram of another embodiment of the invention; and Fig. 4 is a perspective view of a prior molten glass supply apparatus. [Description of main component symbols] 152177.doc 1, 18 Supply pipe 2 Cylindrical pipe 3 Fan-shaped portion 4 Flat portion 5 Molten glass supply portion 6 Molten glass production region 7 Floating glass forming device 8 Furnace gate 9 Tongue tiles 10, 22 Floating bath 11 smelting tin 12 floating glass 螭 13 glazing field level 14 top 15 center line 16 opening loc • 18 - 201124352 17 19 20 21 22 bcdhx Θ i ' 02 connecting the straight ends of the curved part The height of the glass slider supply passage float bath is from the upper surface of the opening portion 16 of the fan-shaped portion 3 to the position of the molten glass level 13 from the lower surface of the opening portion 16 (the upper surface of the tongue 9) to the position of the molten glass The gap between the height of the furnace door 8 and the opening portion 16 is the height of the fixed length of the fan-shaped portion 3 152177.doc -19-