200533439 九、發明說明： 【發明所屬之技術領域】 本發明係關於—種鑄造機用之金屬網製過濾器，其裝接 於低壓~造用之禱造機之洗口内。 【先前技術】 先前以來，例如機車用之引擎之汽缸蓋係藉由低麼铸造 法加以鑄造。作為該低慶鑄造用之鑄造機，例如於專利文 獻1中有所揭示。該專利文獻lt所揭示之鑄造機係採用如 下構成：於包含下模具與上模具之模具下方配設有掛螞， 加星存放於該㈣中之金屬料且經由軸柱與b杯上麼 金屬熔液，供給至上述下模具之澆口。 此種鑄造機為阻止於㈣内或軸柱内所產生之氧化物或 金屬熔液中之雜質與金屬熔液-併流入至模具内，如圖5 所示，於澆口内裝接有金屬網製過濾器。 圖5係放大表示裝接有先前之過濾器之鑄造機洗口部分 的剖面圖’於同圖中，符號i表示下模具，2表示下模具用 之支持構件’3表示澆口杯，4表示過滤器，5表示於模呈内 已凝固之金屬熔液。 上述下杈具1係以模槽6朝向上方開口之方式形成，介以 上述下板具用之支持構件2固定於未圖示之基臺上。上述模 槽6係藉由下模具與上模具（未圖示）而形成，於其下端部形 ::澆道7。該澆道7係以自同圖中以兩點虛線表示之產品 '刀向下方凹陷之方式形成於下模具1中，於其底面開口 98762.doc 200533439 上述洗口9連接於洗口杯3，該;堯口杯3保持於上述下模具 用之支持構件2上。雖未有圖示，上述洗口杯3於下端部連 接有軸柱，且介以該轴柱連通料瑪内1，於該鑄造機 中、，金屬炼液經由軸柱上麼至洗口杯3處，且自洗口杯埃 由澆口 9供給至模槽6内（澆道7)。 上述淹口 9係以隨著朝向上#而開口徑逐漸變大之方式 形成’於其中間部位裝接有過濾器4。該過濾器4包含藉由 加壓成形而成形為有底圓筒狀之金屬網，上下方向延伸部 4a與圓板狀過濾器本體仆形成為一體；上述上下方向延伸 部⑽合於上錢口9且延伸於上下方向，上述過濾器本體 ㈣於上下方向上切㈣口9之方式設於該上下方向延伸 部4a之上端部分。該過濾器4自模槽6側插入澆口 9内，於藉 由作業者按壓而產生彈性變形之狀態下壓入至澆口 9内。曰 該先前之鑄造機，其金屬炼液經由上述過遽器顿給至模 槽6内’於該金屬溶液裝滿模槽6内且於洗口 9附近已經凝固 時’於坩堝侧停止加壓金屬㉟液。藉由以此種方式停止加 壓’金屬熔液之未凝固部分向下流至掛堝内，已凝固之部 ^金屬、職5)殘留於模具側。先前之矯造機仙上述過渡 器4進入上述已凝固之部分中且成為鑄造包覆狀態（參照圖 5)之方式設定加壓時間。故而，藉由鑄造後自了模具i中向 上方脫模鑄造物，從而可自澆口9上一併卸取過濾器4與鑄 造物。 一再者，本案中請者除本說明書中所揭示之先前技術文獻 資訊中特定之先前技術文獻以外，直至提出專射請時仍 98762.doc 200533439 未能發現與本發明密切相關之先前技術文獻。 【專利文獻1】特開平Π〜57979號公報 [發明所欲解決之問題] 如上所述構成之先前之鑄造機，過濾器4藉由作業者安裝 於洗口 9處，將過濾器4壓入堯口 9内時之力各作業者不同， 故而存有過渡器4安裝於不恰當位置之顧慮。例如，於過淚 器4裝接於相對接近於淹道7之位置（圖中上方）之情形時，將 過濾、器4固^於堯口 9内之力變小，故而存有如下顧慮：禱 讚造時被金屬熔液擠壓過濾器4，因此過遽器4自洗口 9向洗道 7側脫落，進入產品部分8内。若過濾器4以此方式進入產品 部分8内，則所鑄造之產品成為不良品。 另一方面，於過濾器4裝接於相對接近於澆口杯3之位置 (圖中下方）之情形時，存有無法將過濾器4裝入至金屬熔液 之凝固部分5中的顧慮。此情形時，即使使鑄造物脫模，過 濾器4仍殘存於濟口 9上，故而於實行下一次禱造之前必須 • 停止鑄造機後取出過濾器4,鑄造機無法實行連續性動作。 以彺，為防止此種事態發生，以過濾器4不會殘存於澆口 9 之方式加壓金屬溶液直至金屬溶液之凝固部分$到達堯 口 9之下邛為止。故而，存有一次鑄造所需之時間（週期時 間）變長之問題。 本么明係用以解決此種問題而完成者，其目的在於提供 :種鑄造機用之金屬網製過濾器，其不會因為金屬熔液之 C力而自澆口處脫落，並且即使金屬熔液之加壓時間較 短’過濾器亦可裝入鑄造物内。 98762.doc 200533439 【發明内容】 為達成該目的，本發明之鎢造機用之金屬網製過濟哭 係自濟道側嵌合於低麼禱造用之轉造機之洗口内而安:， 且包含過濾器本體與下方延伸部，上述過滤器本體係於上 方凸之帽體下部全周形成緣部，呈帶緣帽子狀，上述下方 延伸部係自該m本體之外周部延伸於下方，於上 部之外周緣與上述帽體部之間形成有環狀凹部。 、、200533439 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a metal mesh filter for a casting machine, which is installed in the mouth of a low-pressure-to-use prayer machine. [Prior art] Formerly, for example, the cylinder head of an engine for a locomotive has been cast by a low casting method. As a casting machine for the low-qing casting, for example, it is disclosed in Patent Document 1. The casting machine disclosed in the patent document lt adopts the following structure: a hanging horse is arranged below the mold including the lower mold and the upper mold, and the metal material stored in the stell is stared through the shaft and the b-cup metal. The melt is supplied to the gate of the lower mold. This casting machine is to prevent impurities and metal melts in oxides or metal melts generated in the concrete or shafts from flowing into the mold, as shown in Figure 5. A metal mesh is installed in the gate.制 滤器。 Filter. Fig. 5 is an enlarged cross-sectional view of a mouthwash portion of a casting machine equipped with a previous filter. In the same figure, the symbol i indicates a lower mold, 2 indicates a support member for the lower mold, 3 indicates a gate cup, and 4 indicates The filter, 5 indicates the molten metal that has solidified in the mold. The lower fork 1 is formed in such a manner that the die groove 6 is opened upward, and is fixed to a base (not shown) through a support member 2 for the lower plate. The mold groove 6 is formed by a lower mold and an upper mold (not shown), and a :: gate 7 is formed at a lower end portion thereof. The runner 7 is formed in the lower mold 1 in such a way that the product 'knife indicated by two dotted lines in the same figure is recessed downward, and an opening is opened at the bottom surface thereof. 98762.doc 200533439 The above-mentioned washing port 9 is connected to the washing cup 3, The Yaokou cup 3 is held on the support member 2 for the lower mold mentioned above. Although not shown in the figure, the above-mentioned washing cup 3 is connected with a shaft post at the lower end portion, and communicates with the material 1 through the shaft post. In the casting machine, the metal refining liquid passes through the shaft post to the washing cup. There are three places, and the self-washing cups are supplied from the gate 9 into the mold groove 6 (runner 7). The above-mentioned submerged opening 9 is formed in such a manner that the opening diameter becomes gradually larger as it goes upward #, and a filter 4 is attached to the middle portion thereof. The filter 4 includes a metal mesh formed into a bottomed cylindrical shape by press molding, and the up-and-down extension portion 4a is integrally formed with the disc-shaped filter body; the up-and-down extension portion is coupled to the upper opening. 9 is extended in the up-down direction, and the above-mentioned filter body is provided on the upper end portion of the up-down direction extending portion 4a in such a manner that the mouth 9 is cut in the up-down direction. The filter 4 is inserted into the gate 9 from the mold groove 6 side, and is pressed into the gate 9 in a state of being elastically deformed by pressing by the operator. In the previous casting machine, the metal smelting liquid was fed into the mold tank 6 through the above-mentioned converter. 'When the metal solution fills the mold tank 6 and has solidified near the washing port 9', the pressure is stopped on the crucible side. Liquid metal. By stopping the pressurization of the unmelted portion of the molten metal in this way from flowing down into the hanging pot, the solidified portion (metal, job 5) remains on the mold side. The pressurizing time is set in a manner that the above-mentioned transition device 4 of the former forging machine enters the solidified portion and becomes a casting coating state (refer to FIG. 5). Therefore, by casting the cast product upward from the mold i after casting, the filter 4 and the cast product can be removed from the gate 9 together. Again and again, in addition to the specific prior art documents in the prior art document information disclosed in this specification, the applicant in this case has not been able to find prior art documents that are closely related to the present invention until the time of the request for a specific shoot. [Patent Document 1] Japanese Patent Application Laid-Open No. Π ~ 57979 [Problems to be Solved by the Invention] In the conventional casting machine configured as described above, the filter 4 is installed by the operator at the washing port 9 and the filter 4 is pressed in. The internal force of Yaokou 9 is different for different operators, so there is a concern that the transition device 4 is installed in an inappropriate position. For example, when the lacrimal device 4 is mounted relatively close to the flooding channel 7 (upper in the figure), the force of fixing the filter 4 to the Yaokou 9 becomes smaller, so the following concerns exist: When the prayer is made, the filter 4 is squeezed by the molten metal, so the filter 4 falls off the washing port 9 to the washing path 7 side and enters the product part 8. If the filter 4 enters the product portion 8 in this manner, the cast product becomes a defective product. On the other hand, when the filter 4 is attached to a position relatively close to the gate cup 3 (lower in the figure), there is a concern that the filter 4 cannot be installed in the solidified portion 5 of the molten metal. In this case, even if the casting is demolded, the filter 4 still remains on Jikou 9. Therefore, before the next prayer is performed, the filter 4 must be removed after stopping the casting machine, and the casting machine cannot perform continuous operation. Therefore, in order to prevent this from happening, the metal solution is pressurized in such a way that the filter 4 does not remain in the gate 9 until the solidified portion of the metal solution reaches below the gate 9. Therefore, there is a problem that the time (cycle time) required for one casting becomes long. Benmeme was completed to solve this kind of problem, and its purpose is to provide: a metal mesh filter for the casting machine, which will not fall off from the gate due to the C force of the molten metal, and even the metal Shorter pressurization time of the melt 'filter can also be installed in the casting. 98762.doc 200533439 [Summary of the Invention] In order to achieve this object, the metal mesh used in the tungsten manufacturing machine of the present invention is fitted on the side of the jidao in the mouth of the remodeling machine used for low-moment prayer: and, and It includes a filter body and a lower extension. The above-mentioned filter system forms an edge portion on the entire periphery of the lower portion of the upper convex cap body, which is in the shape of a brim. The lower extension portion extends from the outer peripheral portion of the m body to the lower portion. An annular recessed portion is formed between the outer peripheral edge of the upper portion and the cap body portion. ,,
請求項1中揭示之本發明之鑄造機用之金屬網製過遽 ^請求項2中揭示之本發明之鑄造機用之金i網製過遽器 人r至允口呀，將過濾器本體之緣部外周緣以大致位於 澆口之澆道側開口緣部之方式壓入者。 、 [發明之效果] 根據本發明，含有料部分之㈣器本體實質上起作用 作為可於❹方向上彈性變形之彈簧，故可使㈣、器本體 在壓入澆口之狀態下壓接於澆口周壁上之彈力增大。 故而可使過濾器強固地保持於澆口内，因此鑄造時可 確切地防止過濾器由於金屬熔液之壓力而自澆口處脫落， 可提高良率。 *又’過濾器本體之帽體部自嵌合於澆口内之緣部向上方 大出因此即使於過濾器本體位於澆口之相對下側之情形 %，亦可使帽體部之上端部面向金屬熔液之凝固部分。故 而，即使不等待金屬熔液凝固至澆口下部，過濾器之一部 刀（巾目體）亦已進入凝固部分内，因此可縮短實施一次鑄造所 需之時間（週期時間）。而且，可確切地自模具内一併卸取過 98762.doc 200533439 濾器與鑄造物，因此無需特意為自模具内卸取過濾器而停 止鑄造機。因此，與如上所述可縮短週期時間相輔相成， 可進一步提高生產性。 根據請求項2之發明，可以過濾器本體之緣部為標準而將 過濾器本體定位於澆口之洗道側開口緣部，因此即使裝接 過濾器之作業者換班，亦可以過濾器本體之帽體部面向洗 道内之方式，將過濾器本體一直定位於固定之位置。故而， 可於澆道内金屬熔液凝固時停止加壓金屬熔液，因此與金 屬炫液之凝固部分到達洗口内之後停止加壓金屬炼液之情 形相比，可提前停止加壓金屬熔液之時期。其結果，可進 一步縮短週期時間，可提高生產效率。 【實施方式】 以下，藉由圖1至圖4詳細說明本發明之鑄造機用之金屬 網製過濾器之一實施形態。The metal mesh used in the foundry machine of the present invention disclosed in claim 1 is claimed ^ The metal mesh used in the foundry machine of the present invention disclosed in claim 2 is made by a net r The outer peripheral edge of the edge portion is pushed in so as to be located approximately at the gate-side opening edge portion of the gate. [Effects of the invention] According to the present invention, the container body containing the material part substantially functions as a spring that can be elastically deformed in the direction of the container. Therefore, the container and the container body can be crimped in the state of being pressed into the gate. The spring force on the peripheral wall of the gate increases. Therefore, the filter can be firmly held in the gate, so that the filter can be reliably prevented from falling out of the gate due to the pressure of the molten metal during casting, and the yield can be improved. * Also, the cap body of the filter body is large upward from the edge portion fitted in the gate, so even if the filter body is located on the opposite lower side of the gate, the upper end portion of the cap body can be faced The solidified part of the molten metal. Therefore, even without waiting for the molten metal to solidify to the lower part of the gate, a knife (towel body) in one part of the filter has entered the solidified part, so the time (cycle time) required to perform a casting can be shortened. In addition, the 98762.doc 200533439 filter and casting can be removed from the mold together, so there is no need to stop the casting machine to remove the filter from the mold. Therefore, as described above, the cycle time can be shortened, and productivity can be further improved. According to the invention of claim 2, the filter body can be positioned at the edge of the opening of the washing channel side of the gate as the standard of the edge of the filter body. Therefore, even if the operator who attaches the filter changes the shift, the filter body can also be With the cap body facing the inside of the washing channel, the filter body is always positioned in a fixed position. Therefore, the pressurized metal melt can be stopped when the metal melt in the runner solidifies. Therefore, compared with the case where the solidified part of the metal dazzling liquid reaches the wash mouth, the pressurized metal melt can be stopped in advance. period. As a result, the cycle time can be further shortened, and production efficiency can be improved. [Embodiment] Hereinafter, an embodiment of a metal mesh filter for a casting machine according to the present invention will be described in detail with reference to Figs. 1 to 4.
圖1係裝備有本發明之過濾器之低壓鑄造用之鑄造機的 剖面圖，圖2係下模具之平面目，圖3係放大表示主要部分 之剖面圖’圖4係過濾器之立體圖。 於此等圖中，以符號"表示該實施形態之低壓鑄造用 鑄造機。該鑄造機U係藉由 之 低Μ麵造，用以鑄造機車用 引擎之α缸盍（未圖示）者，如先前以來眾所周知， 上配設有模具13。 之 於爐體12 上述爐體12包含如下構件等··主體14,其朝向上方開口 且形成為箱狀，·蓋體15,其用以關閉該主體 二 部分4㈣，其用以及純Ζ 98762.doc 200533439 女衣方、上述盖體15上且下端部浸泡於上述金屬炫液μ内。 該爐體12之上述主體14内置有用以將上述坩堝口内之金屬 熔液16加熱至特定溫度之加熱器（未圖示），並且連接有加壓 裝置（未圖示）。該加壓裝置用以於鑄造時供給惰性氣體至上 述主體14内，加壓金屬熔液16之上面從而將金屬熔液“壓 出至軸柱18内，且於形成於主體14之連接口 Ma上連接有氣 管（未圖示）。 藉由該鑄造機U所實施之鑄造以與先前之鑄造機同樣之 方式，藉由於模具13閉模之狀態下使用加壓裝置於爐體12 之主體14内加壓而得以實施。鑄造時藉由於上述主體“内 加壓，從而金屬熔液16自坩堝17内上升至軸柱18内，且供 給至位於上方之模具13内。 上述模具13包含上模具21與下模具22，且藉由驅動裝置 23加以支持。上述上模具21形成有朝向下方開口之模槽 24，且安裝於驅動裝置23之壓板25上。該壓板乃介以連接 φ 桿27以可自如升降之方式支持於驅動裝置23之基台26上， 且藉由未圖示之升降用之馬達於上下方向上移動。 上述下模具22形成有朝向上方開口之模槽28，且藉由支 持構件29固定於上述基台26之上。於該下模具22與上述上 模具21中設有用以將此等模具預熱至鑄造溫度之加熱器 (未圖不），以及用以將鑄造時之模具溫度保持為固定溫度之 水冷式冷卻裝置（未圖示）。 於下模具22之模槽28之底部，如圖2及圖3所示，以自模 槽28之-側部橫貫至他側部延伸之方式形成有淹道3〇，並 98762.doc -10- 200533439 且以自㈣道30之底部延伸至下方之方式形成有淹〜 如圖2所示，上述洗口 31於下模㈣之底部自上方觀疚形 成為橢圓狀，如圖3所示’上述洗口 31以隨著朝向 ； 口徑逐漸擴大且形成斜度之方式得以穿設。於料口 ^開 上端部之開口部分裝接有後述之過據器32，於堯口31之之 端連接有洗口杯33之上端部，該淹口杯33設於^述下模I =之支持構件29上。如圖i所示，該堯口杯33於上下方向^ 貫通上述支持構件29,金屬炼液16自抵接於該支持構件^ 下面之上述軸柱18之上端部得以供給。即，鑄造時金屬炫 液16自上述軸柱18經由澆口杯33流入至澆口 3ι，自声口w 内經由喊H32流人至洗道糊，進而供給至㈣二、28 内0 裝滿模槽24、28内之金屬熔液16自模槽24、“内之產品 部分34(參照圖3)開始凝固。該金屬炫液16之凝固部分隨: 時間之流逝自洗道30内行進至洗口 31内。該實施形態之轉 φ 造機11於凝固部分行進至澆道30與澆口 3 1之交界附近為止 牯，停止藉由加壓裝置實施加壓，未凝固部分之金屬熔液 16向下流至坩堝17内。上述停止加壓之時期於該實施形態 中，依據藉由裝接於下模具22之溫度感測器（未圖示）所檢測 之上述交界附近之金屬熔液16的溫度而決定。 如圖3及圖4所不，上述過濾器32包含附帶緣部且呈帽子 狀之過濾器本體35，以及自該過濾器本體35之外周部延伸 於下方之下方延伸部36。該實施形態之過濾器32藉由未圖 示之加壓成形裝置，成形經過鍍辞處理之鐵製金屬網而加 98762.doc 200533439 以製造。於圖4中，以便於理解過濾器32形狀之方式描畫有 複數條輔助線，該過濾器32之網眼藉由金屬網形成，該金 屬網於不同於上述輔助線之方向上加以編織。 上述過濾器本體35之帽體部37於上方形成為凸起有底圓 筒狀，於該帽體部37之下部全周邊不間斷地連貫形成有緣 部38。上述緣部38於連接於上述下方延伸部刊之外周緣“a 與帽體部37之間，形成有朝向上方開口之環狀凹部39。於 該實施形態中，上述緣部38之外周緣38a以隨著朝向直徑方 向外側逐漸位於下方之方式加以彎曲，且平滑地連接於下 方延伸部36之上端部分。以此方式，緣部38H緣如得 以弓曲，並且與該外周緣38a相比，環狀凹部39更加位於直 徑方向之内側，故而該緣部38藉由位於内周側之環狀凹部 39與位於外周側之環狀凸部4〇從而形成為剖面s字狀。上述 緣部38之外徑以略大於上述洗口 31之洗道側開口緣部之内 徑的方式形成。 •。上述下方延伸部36係相當於藉由加壓成形而形成該過濾 器32之以前金屬網之四角的部分，自過濾器本體35外周部 之四個部位分別延設於下方。如圖3所示，該下方延伸部刊 以沿著澆口 31之錐形面傾斜之方式形成。Fig. 1 is a sectional view of a casting machine for low-pressure casting equipped with the filter of the present invention, Fig. 2 is a plan view of a lower mold, and Fig. 3 is an enlarged sectional view showing a main part. Fig. 4 is a perspective view of the filter. In these drawings, the symbol " indicates the casting machine for low pressure casting of this embodiment. The casting machine U is made of a low-M surface, and is used for casting an α-cylinder (not shown) of an engine for a locomotive. As previously known, a mold 13 is provided thereon. For the furnace body 12 The above furnace body 12 includes the following components and the like. The main body 14 is opened upward and formed into a box shape. The cover 15 is used to close the two main parts of the main body 4㈣, which is used for pure Z 98762. doc 200533439 The women's clothing side and the upper and lower ends of the cover 15 are immersed in the metal glare solution μ. The main body 14 of the furnace body 12 has a built-in heater (not shown) for heating the molten metal 16 in the crucible mouth to a specific temperature, and is connected with a pressure device (not shown). This pressurizing device is used to supply an inert gas into the main body 14 during casting, presses the top of the molten metal 16 so as to "press out the molten metal into the shaft 18, and is formed at the connection port Ma formed in the main body 14. An air pipe (not shown) is connected. The casting performed by the casting machine U is performed in the same manner as the previous casting machine, and the pressurizing device is used in the main body 14 of the furnace body 12 while the mold 13 is closed. Internal pressurization is carried out. During casting, due to the "internal pressurization of the main body, the molten metal 16 rises from the crucible 17 into the shaft 18, and is supplied to the mold 13 located above. The mold 13 includes an upper mold 21 and a lower mold 22 and is supported by a driving device 23. The upper mold 21 is formed with a mold groove 24 which is opened downward, and is mounted on the pressure plate 25 of the driving device 23. The pressure plate is supported on the base 26 of the driving device 23 via a connection φ rod 27 in a freely lifting manner, and is moved in the vertical direction by a lifting motor (not shown). The lower mold 22 is formed with a mold groove 28 which opens upward, and is fixed on the base 26 by a support member 29. The lower mold 22 and the upper mold 21 are provided with a heater (not shown) for preheating these molds to the casting temperature, and a water-cooled cooling device for maintaining the mold temperature at the fixed temperature during casting. (Not shown). At the bottom of the mold groove 28 of the lower mold 22, as shown in FIG. 2 and FIG. 3, a flooding channel 30 is formed so as to extend from the -side portion of the mold groove 28 to the other side, and 98762.doc -10 -200533439 The flooding is formed in such a way that it extends from the bottom of the tunnel 30 to the bottom ~ As shown in Figure 2, the above-mentioned washing mouth 31 is formed into an oval shape from the bottom at the bottom of the lower mold, as shown in Figure 3 ' The above-mentioned washing mouth 31 can be worn in such a manner that the caliber gradually expands with the orientation; The opening part of the upper end of the material mouth ^ is connected with a later-mentioned data collector 32, and the end of Yaokou 31 is connected with the upper end of the mouthwash cup 33, which is set in the lower mold I = The support member 29. As shown in FIG. I, the Yaokou cup 33 penetrates the support member 29 in the up-down direction, and the metal smelting liquid 16 abuts on the support member ^ and the upper end of the above-mentioned shaft 18 is supplied. That is, during casting, the metal dazzling liquid 16 flows from the above-mentioned shaft 18 to the gate 3 ι through the gate cup 33, and flows from the sound port w to the dishwashing paste through the shout H32, and is then supplied to the second, 28 and 0. The molten metal 16 in the mold grooves 24 and 28 starts to solidify from the mold groove 24 and the product portion 34 (refer to FIG. 3). The solidified portion of the metal glare liquid 16 proceeds with the passage of time from the washing channel 30 to Washing mouth 31. In this embodiment, the turning machine 11 advances the solidified part to the vicinity of the junction of the runner 30 and the gate 31, and stops the pressurization by the pressurizing device. The unmelted part of the molten metal 16 It flows down into the crucible 17. In this embodiment, the above-mentioned period of stopping the pressurization is based on the detection of the molten metal 16 near the junction detected by a temperature sensor (not shown) attached to the lower mold 22. The temperature depends on the temperature. As shown in FIG. 3 and FIG. 4, the filter 32 includes a hat-shaped filter body 35 with an edge portion, and a lower extension portion 36 extending from the outer peripheral portion of the filter body 35 to the lower side. The filter 32 of this embodiment is formed by a pressure forming device (not shown). The plated iron metal mesh is added with 98762.doc 200533439 to make it. In FIG. 4, a plurality of auxiliary lines are drawn in a way to understand the shape of the filter 32, and the mesh of the filter 32 is formed by a metal mesh. The metal mesh is woven in a direction different from the above-mentioned auxiliary line. The cap body portion 37 of the filter body 35 is formed into a raised bottomed cylindrical shape above, and does not surround the entire periphery of the lower portion of the cap body portion 37. An edge portion 38 is formed intermittently and continuously. The edge portion 38 is formed between the outer peripheral edge "a" of the lower extension portion and the cap portion 37, and an annular recessed portion 39 is formed to open upward. In this embodiment, the outer peripheral edge 38a of the edge portion 38 is bent so as to be gradually lowered toward the outside in the diameter direction, and is smoothly connected to the upper end portion of the lower extension portion 36. In this way, if the edge portion 38H is bowed, and the ring-shaped concave portion 39 is located more inward in the diameter direction than the outer peripheral edge 38a, the edge portion 38 is connected to the ring-shaped concave portion 39 on the inner peripheral side with The annular convex portion 40 located on the outer peripheral side is formed in an s-shaped cross section. The outer diameter of the rim portion 38 is formed to be slightly larger than the inner diameter of the rim side opening edge portion of the wash port 31. •. The above-mentioned lower extensions 36 are portions corresponding to the four corners of the former metal mesh of the filter 32 by press forming, and four portions from the outer peripheral portion of the filter body 35 are respectively extended below. As shown in FIG. 3, the lower extension is formed so as to be inclined along the tapered surface of the gate 31.
如圖3所示，如上構成之過濾器32壓入至澆口 31時，以過 濾器本體35之緣部38外周緣大致位於澆口 31之澆道側開口 緣部（下流側端部）之方式壓入，藉此裝接於澆口 31上。將該 過遽器32壓入至洗口 Η之操作係作業者於每次禱造作業時 實行。上述壓入作業以如下方式實行：自下模具。之模J 98762.doc 12 200533439 28側將過濾器32之下方延伸部36插入至澆口 31，於上述外 周緣38a之全域接觸於澆口 31之周壁之狀態下，將過濾器本 體35按壓至下方（澆口 31内藉由以此方式將過濾器本體35 按壓至下方，從而構成緣部38之環狀凹部39及環狀凸部4〇 與帽體部37之基端部產生彈性變形，過濾器本體35於直徑 方向上得以壓縮。即，含有彎曲部分之過濾器本體35實質 上作為可於直徑方向上彈性變形之彈簧發揮作用。 因此’藉由將過濾器本體3 5壓入至澆口 3 1，過濾器本體 35可以自身之彈性擠壓至澆口 31之周壁，故而可將該過據 為32強固地保持於澆口 3丨内。與未存有環狀凹部39或環狀 凸部40之先前之過濾器相比，上述彈發力明顯變大。 該實施形態之過濾器32於鑄造時藉由通過金屬熔液16而 得以备壓至上方’如上所述過濾器32藉由大於先前之彈發 力得以按壓至澆口 31之周壁，因此即使金屬熔液16内之氧 化物或雜質彙集於過濾器32内，作用於過濾器32之按壓力 增大’亦不會自澆口 3丨處脫落而進入至產品部分34内。 又，過濾器本體35之帽體部37自嵌合於澆口 3丨之緣部38 突出於上方，因此即使假設於過濾器本體35壓入至澆口 31 下部為止之情形時，帽體部37之上端部亦會進入金屬熔液 16之凝固部分内。&而，無需等待停止加壓直至金屬熔液 16减固至澆口 31之下部為止，上述帽體部即可進入凝固 邛刀内，因此可縮短實施一次鑄造所需之時間（週期時間）。 先剷以來，必須繼續加壓金屬炫液丨6直 擴大至圖3中以兩點虛線續示之位置為止，但根據言^ 98762.doc -13- 200533439 形您之轉造機11，可比先前提前數十秒停止加壓。 又’上述帽體部37突出於上方且進入金屬熔液16之凝固 部分’因此可確切地自模具13内一併卸取過濾器32與鑄造 物。即’無需特意為自模具13内卸取過濾器32而停止鑄造 機11 ’因此與如上所述可縮短週期時間相輔相成，可進一 步提南生產性。 該實施形態之過濾器32之過濾器本體35於壓入至澆口 31 B 呤，以緣部38之外周緣38a大致位於澆口 3 1之澆道側開口緣 部之方式壓入，因此將過濾器32裝接於澆口 31時，可以緣 W 3 8為;f示準彳之而將過濾器本體3 5定位於洗口 3 1之洗道側開 口緣部。故而，即使替換裝接過濾器32之作業者，亦可以 過濾器本體35之帽體部37面向澆道30内之方式，將過滤器 本體35定位於通常固定之位置。 因此，可於洗道30内金屬熔液16已經凝固時停止加壓金 屬炼液16，故而與金屬熔液16之凝固部分到達洗口 3丨内之 φ 後停止加壓金屬熔液16之情形相比，可提前停止加壓金屬 熔液16。其結果為，可進一步縮短週期時間，從而提高生 產效率。 【圖式簡單說明】 圖1係裝備有本發明之過濾器之低壓鑄造用之禱造機的 剖面圖。 圖2係下模具之平面圖。 ， 圖3係放大表示主要部分之剖面圖。 圖4係過濾器之立體圖。 98762.doc •14- 200533439 圖5係放大表示裝接有先前之過濾器之鑄造機之澆口部 分的剖面圖。 【主要元件符號說明】As shown in FIG. 3, when the filter 32 configured as described above is pressed into the gate 31, the outer peripheral edge of the edge portion 38 of the filter body 35 is located approximately at the gate-side opening edge portion (downstream end portion) of the gate 31. It is press-fitted in this manner, thereby being attached to the gate 31. The operation of pressing the wiper 32 into the mouth washes is performed by the operator at each prayer operation. The above-mentioned press-in operation is performed as follows: from below the mold. The mold J 98762.doc 12 200533439 28 inserts the lower extension 36 of the filter 32 to the gate 31, and presses the filter body 35 to the state where the entire area of the outer periphery 38a contacts the peripheral wall of the gate 31 The lower part (by pressing the filter body 35 downward in the gate 31 in this way, the annular concave portion 39 and the annular convex portion 40 constituting the edge portion 38 and the base end portion of the cap body portion 37 are elastically deformed. The filter body 35 is compressed in the diameter direction. That is, the filter body 35 including the bent portion substantially functions as a spring that can be elastically deformed in the diameter direction. Therefore, by pressing the filter body 35 to At the port 31, the filter body 35 can be squeezed by its own elasticity to the peripheral wall of the gate 31, so it can be held firmly in the gate 3 丨 with no ring recess 39 or ring. Compared with the previous filter of the convex portion 40, the above-mentioned spring force becomes significantly larger. The filter 32 of this embodiment is backed up by passing the molten metal 16 during casting. The filter 32 is borrowed as described above. Pressed by a force greater than the previous bullet To the peripheral wall of the gate 31, so even if the oxides or impurities in the molten metal 16 are collected in the filter 32, the pressing force acting on the filter 32 will not fall off from the gate 3 and enter The product portion 34. In addition, the cap body portion 37 of the filter body 35 protrudes upward from the edge portion 38 fitted to the gate 3, so even if the filter body 35 is pressed into the lower portion of the gate 31, At this time, the upper end portion of the cap body portion 37 also enters the solidified portion of the molten metal 16. And, there is no need to wait for the pressure to be stopped until the molten metal 16 is reduced to the lower portion of the gate 31. It can enter the solidified trowel, so it can shorten the time (cycle time) required to perform a casting. Since the first shovel, the metal dazzling liquid must continue to be pressurized 丨 6 until it expands to the position shown by two dotted lines in Fig. 3 However, according to the words ^ 98762.doc -13- 200533439, you can stop the pressure tens of seconds earlier than before. Also, 'the cap body part 37 projects above and enters the solidified part of the molten metal 16', so Can be removed together from the mold 13 exactly The filter 32 and the casting. That is, 'there is no need to stop the casting machine 11 to remove the filter 32 from the mold 13 deliberately'. Therefore, it can complement the shortening of the cycle time as described above, and can further improve the productivity of the south. The filter body 35 of 32 is press-fitted to the gate 31 B, and is pressed in such a manner that the outer periphery 38a of the edge portion 38 is located approximately at the gate-side opening edge portion of the gate 31. Therefore, the filter 32 is attached to In the case of the gate 31, the edge W 3 8 can be used; f indicates that the filter body 35 is positioned at the opening edge of the washing channel side of the washing port 31. Therefore, even if the operator who attaches the filter 32 is replaced It is also possible to position the filter body 35 at a generally fixed position in such a manner that the cap body portion 37 of the filter body 35 faces inside the runner 30. Therefore, it is possible to stop pressurizing the molten metal 16 when the molten metal 16 in the washing channel 30 has solidified, so that the solidified part with the molten metal 16 reaches the φ in the washing port 3, and the pressing of the molten metal 16 is stopped. In contrast, the pressurized molten metal 16 can be stopped in advance. As a result, the cycle time can be further shortened, and the production efficiency can be improved. [Brief description of the drawings] Fig. 1 is a sectional view of a prayer machine for low-pressure casting equipped with the filter of the present invention. Figure 2 is a plan view of the lower mold. FIG. 3 is an enlarged cross-sectional view of a main part. Figure 4 is a perspective view of a filter. 98762.doc • 14- 200533439 Fig. 5 is an enlarged sectional view showing a gate portion of a casting machine equipped with a previous filter. [Description of main component symbols]
11 禱造機 13 模具 16 金屬熔液 21 上模具 22 下模具 24，28 模槽 29 支持構件 3.0 澆道 31 澆口 32 過濾器 33 洗口杯 34 產品部分 35 過濾器本體 36 下方延伸部 37 帽體部 38 緣部 39 環狀凹部 40 環狀凸部 A 虛線 98762.doc -15-11 Prayer machine 13 Mould 16 Metal melt 21 Upper mold 22 Lower mold 24, 28 Mold groove 29 Support member 3.0 Sprue 31 Gate 32 Filter 33 Wash cup 34 Product part 35 Filter body 36 Lower extension 37 Cap Part 38 edge part 39 annular recessed part 40 annular convex part A dashed line 98762.doc -15-