201231189 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種模具真空閥，特別是指一種具有 良好成型效果之模具真空閥裝置。 【先前技術】 參閱圖1，習知模具的真空閥10結構主要包含有一基 座11、一活動座12、一連動塊13、一頂出座14及一底座 15 ’基座11與活動座π之間設有一呈波浪狀的緩衝迴路 16 ’基座11上凹設有一通孔n丨，其侧邊處凹設有一與通 孔111相連通的排氣口 112，活動座12上設有一與緩衝迴 路16相通之氣道121，連動塊13前側設有一閥門軸心131 ’閥門軸心131套設在通孔U1内，連動塊13後側設有— 連動軸心132 ’頂出座14内側設有二組彈簧ι41，二組彈 簧141可對連動塊13作彈抵，當鑄料由氣道121到達緩衝 迴路16時，會對連動軸心132作頂壓，待鑄料蓄壓克服彈 簧141的彈力，帶動連動塊13的閥門軸心131，使緩衝迴 路16的空氣可經由閥門軸心13 1排出至排氣口 112。 上述真空閥10雖然可以達到真空鑄造的使用效果，然 而在成型上仍有其缺失存在，習知真空間主要是將間門轴 心131及連動軸心132藉•由連動塊13作成連動狀，當鑄料 進入緩衝迴路16推抵連動轴心132時，必需在該處蓄壓到 達-定壓力後，超過彈簧141彈力才會帶動間門轴心Hi 移動，使緩衝迴路16形成關，因此缓衝迴路16從真空 閥1〇注入到完全封閉會有些微時間差，此_時間差常造: 201231189 鑄料在流道内竄流，造成鑄件成品的成型品質會產生許多 微小遐庇。 【發明内容】 因此，本發明目的在提供一種具有優良成型效果的模 具真空閥裝置。 於疋，本發明提供一種模具真空閥裝置，其包含有一 第一模具單元、一第二模具單元及-滑動塊單元，其中： 第-模具單元具有—第—模本體，第—模本體上方處凹設 有-滑動面’第-模本體在—側邊處設有—繞道流路，另 -側邊處設有-真空流路；第二模具單元具有一第二模本 體，第二模本體下方處設有-成型模面’成型模面上設有 一個以上呈凹凸形狀的型齒部，成型模面與滑動面之間界 定形成有-容置空間；滑動塊單元具有—滑設在容置空間 内的滑動塊’該滑動塊底部貼抵在滑動面上可沿橫向移動 ，滑動塊頂部設有-個以上呈凹凸形狀的凸齒部，該凸齒 部：與第二模本體的型齒部相配合，凸齒部與型齒部之間 界疋有.-成型空隙’成型空隙兩端分別與澆道流路及真空 流路相連。 . 〆 二模本體之間套設有 立即受到推移而關閉 本發明之功效是利用在第一、第 一滑動塊，使滑動塊在鑄料到達時會 真空流路，#此達到成型效果佳的優點 【實施方式】 容、特點與功效，在 洋細說明中，將可清 有關本發明之前述及其他技術内 以下配合參考圖式之一較佳實施例的 201231189 楚的呈現。 參閱圖2、圖3,本發明模具真空閥裝置主要是安裝在 一模具1上，該模具1包含有一上模1〇〇及一下模200 ,上 下模100、200各设有一模穴ιοί、2〇1，本發明在一較佳 實施例中’主要包含有一第一模具單元2〇、一第二模具單 元30及一滑動塊單元40，第一模具單元20裝設在下模 200 ’第一模具單元30裝設在上模1 〇〇，當上、下模1 〇〇、 200相互蓋合後，第一模具單元2〇剛好與第二模具單元％ 相互對合，接著’再將上述各單元的組成構件及空間組合 型態詳述於后。 同時參閱圖4、圖5’第一模具單元20具有一第一模 本體21及二彈性元件22，第一模本體21上方處凹設有一 滑動面211，第一模本體21在一側邊處設有一與模具i相 連的澆道流路212，另一側邊處設有一與真空裝置（圖未示） 相連的真空流路213 ’第一模本體21在滑動面211上更深 入凹設有一略呈L形狀的限位槽214，第一模本體21内部 橫向設有二凹孔215’二凹孔215剛好可供二彈性元件22 套入。 第二模具單元30具有一第二模本體31，第二模本體 31下方處设有一成型模面311 ’成型模面311上設有數個呈 凹凸形狀的型齒部312’成型模面311與滑動面211之間界 定形成有一容置空間I。 滑動塊單元4〇包含有一滑動塊41、數滚動件42、一 滚輪43及二調整螺件44。該滑動塊41是滑設在容置空間 201231189 i内’其底部貼抵在滑動面211上可沿橫向移動，該滑動塊 41頂部設有數個呈凹凸形狀的凸齒部411，該凸齒部411剛 好與第二模本體31的型齒部312相配合，凸齒部411與型 齒部3 12之間界定有一成型空隙Π，成型空隙Π兩端分別 與澆道流路212及真空流路213相連’該滑動塊41底部在 兩側邊處各凹設有一作透空狀的圓形槽孔412，該圓形槽孔 412可供多數個滾動件42套入，整個滑動塊Μ藉由滾動件 42與滑動面211作滾動接觸狀，在本實施例中，滾動件a 是採用鋼珠，當然業者也可採用滾柱或其他型式的滚動構 件。該滑動塊下方伸設有一略呈L形狀的限位凸部413 人該限位凸部413可與第—模本體21的限位槽214相互套 合’該滾輪43軸設在限位凸部413的中間處，可與限位槽 214一的内壁面作滾抵接觸狀。限位凸部413的側邊面受到彈 性兀件22彈抵’使整個滑動塊41具有朝繞道流路扣方 向移動的彈復力，限位凸部413的底面處穿設有二調整螺 孔414 ’每一調整螺孔414可供調整螺件44螺入，使用者 :對調整螺件44虫累轉微調，使調整螺件44下端頂抵限位 玲214内壁，藉以調整滑動塊“成型空隙立的大小。 接/上即為本發明模具真”裝置各構件形狀的概述丨 户者’再將本發明的動作以及預期所能達成之功•效陳述如 再參閱圖2 料可經由模具i 212内。參閱圖 ’當本發明開始龍具進行鑄造作業時，鑄 模穴101到達第-模切21的涛道流路 6 ’此時，滑動塊41尚未受到推壓，鑄料 201231189 可由澆道流路212開始進入成型空隙Π内。 參閱圖7,接著，當鑄料一旦進入成型空隙I[對滑動塊 41的凸齒部411作推壓後，滑動塊41會靈敏地朝真空流路 213方向移動，滑動塊41的凸齒部411會緊密地貼合在型 齒部312的一側，而且鑄料愈推壓凸齒部411，凸齒部411 與型齒部312的貼合程度就愈緊密，如此可在瞬間即關閉 真工流路213 ’鱗料每通過一道面低起伏的占齒部411，進 料速度就會減半，經過數道凸齒部411緩衝減速後，使禱 料可確實在成型空隙Π内凝結。 綜上所述，本發明模具真空閥裝置主要是為了解決習 知真空閥1 〇的成型問題，其採用的技術手段是利用在第一 模本體21及第一模本體3 1之間設置有一滑動塊41，該滑 動塊41上成型有一呈凹凸形狀的凸齒部411，使鑄料觸及 到凸齒部411時，可在瞬間立即帶動整個滑動塊41作移動 ，對真空流路213形成關閉，滑動塊41的凸齒部411可對 第二模本體31的型齒部31.2靠緊形成閉合，可確實地對鑄 料作緩衝減速’如此鑄料可確實地在成型空隙^内凝結^ 型使本發明的鑄件成品具有極佳的鑄造品質。 处惟以上所述者，僅為本發明之一較佳實施例而已，當 不：以此限定本發明’實施之範圍，即大凡依本發明申請專 圍及I a月說明内容所作之簡單的等效變化與修飾，皆 仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是習知I空閥的組合剖視圖； 201231189 圖2是本發明模具真空閥裝置一較佳實施例的分解立 體圖’說明本發明裝設在一模具内的情形； 圖3是上述較佳實施例的分解立體圖，說明本發明包 含有一第一模具單元、一第二模具單元及—滑動塊單元； 圖4是上述較佳實施例的分解立體圖，說明由另一視 角觀視本發明的情形； &工邋敉佳貫 單元與滑動塊單元之間形成有一成型空隙； 圖6是上述較佳實施例的動作 成型空隙的情形，·〗 料圖說明鑄料開始進入 圖7是上述較佳實施例的 隙内受到緩衝的情形。 圖，說明鑄料在成蜇> 201231189 【主要元件符號說明】 20........ -·第一模具單元 41 ‘… •…滑動塊 21........ ••第一模本體 411… 凸齒部 211…… •-滑動面 412… …·圓形槽孔 212 ----- ••洗道流路 413… …·限位凸部 213…… •真空流路 414… •…調整螺孔 214…… ‘·限位槽 42·.-·· •…滾動件 2 15 —，， •凹孔 43···· •…滾輪 22........ '彈性元件 44··· …·調整螺件 3 0……· 第二模具單元 1…… …·模具 3 1........ ••第二模本體 100… •…上軸 3 11…… ••成型模面 101… •…模穴 3 12...... •型齒部 200… …·下模 40........ 201… …·模穴201231189 VI. Description of the Invention: [Technical Field] The present invention relates to a mold vacuum valve, and more particularly to a mold vacuum valve device having a good molding effect. [Prior Art] Referring to Figure 1, the vacuum valve 10 structure of a conventional mold mainly comprises a base 11, a movable seat 12, a linkage block 13, a ejector 14 and a base 15 'base 11 and movable seat π A undulating buffer circuit 16 is disposed between the pedestal 11 and a through hole n 凹 is defined in the pedestal 11 , and an exhaust port 112 communicating with the through hole 111 is recessed at a side thereof, and the movable seat 12 is provided with a The air passage 121 communicated with the buffer circuit 16 is provided with a valve shaft 131 on the front side of the linkage block 13. The valve shaft 131 is sleeved in the through hole U1, and the rear side of the linkage block 13 is provided - the linkage shaft 132 is disposed inside the socket 14 There are two sets of springs ι41, and the two sets of springs 141 can be biased against the linking block 13. When the casting material reaches the buffer circuit 16 from the air passage 121, the interlocking shaft 132 is pressed, and the material to be cast accumulates against the spring 141. The elastic force drives the valve shaft 131 of the linkage block 13 so that the air of the buffer circuit 16 can be discharged to the exhaust port 112 via the valve shaft 13 1 . Although the above-mentioned vacuum valve 10 can achieve the effect of vacuum casting, there is still a defect in the molding. The conventional vacuum mainly uses the interlocking block 13 to be interlocked by the interlocking axis 13 and the interlocking axis 132. When the casting material enters the buffer circuit 16 and pushes against the linkage axis 132, it is necessary to exceed the spring 141 elastic force to drive the door axis Hi to move, so that the buffer circuit 16 is closed, so that the buffer circuit 16 is closed. There is some slight time difference between the injection of the vacuum circuit 1 from the vacuum valve 1〇 to the complete closure. This time difference is often created: 201231189 The casting material is turbulent in the flow channel, which causes many small defects in the molding quality of the finished casting. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a mold vacuum valve device having an excellent molding effect. The present invention provides a mold vacuum valve device comprising a first mold unit, a second mold unit and a sliding block unit, wherein: the first mold unit has a first mold body, and the first mold body is above The recessed-sliding surface 'the first mold body is provided with a bypass flow path at the side, and the other side has a vacuum flow path; the second mold unit has a second mold body, and the second mold body At the lower part, there is a profiled surface on the molding surface, and more than one type of toothed portion having a concave-convex shape is formed on the molding surface, and a forming space is formed between the molding surface and the sliding surface; the sliding block unit has a sliding shape The sliding block in the space is arranged to be movable in the lateral direction on the sliding surface, and the top of the sliding block is provided with more than one convex tooth portion having a concave-convex shape, the convex tooth portion and the second mold body The tooth portions are matched, and the boundary between the convex tooth portion and the tooth portion is formed. The forming gap is formed at both ends of the forming gap respectively with the runner flow path and the vacuum flow path. The effect of the invention is that the first and first sliding blocks are used in the first and first sliding blocks, so that the sliding block will have a vacuum flow path when the casting material arrives, which achieves a good forming effect. Advantages [Embodiment] The contents, features, and effects of the present invention will be apparent from the above-described and other aspects of the present invention in conjunction with the preferred embodiment of the reference drawings. Referring to FIG. 2 and FIG. 3, the mold vacuum valve device of the present invention is mainly mounted on a mold 1. The mold 1 includes an upper mold 1 and a lower mold 200, and the upper and lower molds 100 and 200 are respectively provided with a cavity ιοί, 2 In the preferred embodiment, the present invention mainly includes a first mold unit 2, a second mold unit 30, and a slider unit 40. The first mold unit 20 is mounted on the lower mold 200'. The unit 30 is mounted on the upper mold 1 〇〇. When the upper and lower molds 1 〇〇, 200 are covered with each other, the first mold unit 2 〇 is just aligned with the second mold unit %, and then the above units are further The constituent components and spatial combination types are detailed later. Referring to FIG. 4 and FIG. 5, the first mold unit 20 has a first mold body 21 and two elastic members 22. A sliding surface 211 is recessed above the first mold body 21, and the first mold body 21 is at one side. A runner flow path 212 connected to the mold i is disposed, and a vacuum flow path 213 connected to a vacuum device (not shown) is disposed on the other side. The first mold body 21 is further recessed on the sliding surface 211. The L-shaped limit groove 214 is formed in the first mold body 21 with two recessed holes 215'. The two recessed holes 215 are just enough for the two elastic members 22 to be nested. The second mold unit 30 has a second mold body 31. The second mold body 31 is provided with a molding surface 311. The molding surface 311 is provided with a plurality of shaped teeth 312' forming a molding surface 311 and sliding. An accommodation space I is defined between the faces 211. The slider unit 4A includes a slider 41, a plurality of rolling members 42, a roller 43, and two adjusting screws 44. The sliding block 41 is slidably disposed in the accommodating space 201231189 i. The bottom portion of the sliding block 41 is laterally movable on the sliding surface 211. The top of the sliding block 41 is provided with a plurality of convex tooth portions 411 having a concave-convex shape. 411 is just matched with the tooth portion 312 of the second mold body 31, and a molding gap 界定 is defined between the convex tooth portion 411 and the tooth portion 312. The two ends of the molding gap 与 are respectively connected to the runner flow path 212 and the vacuum flow path. 213 is connected to the bottom of the sliding block 41. A circular slot 412 is formed in each of the two sides at the two sides. The circular slot 412 can be nested by a plurality of rolling members 42. The rolling member 42 is in rolling contact with the sliding surface 211. In the present embodiment, the rolling member a is made of steel balls. Of course, the roller or other type of rolling member can also be used. A L-shaped limiting protrusion 413 is disposed under the sliding block. The limiting protrusion 413 can be engaged with the limiting groove 214 of the first die body 21. The roller 43 is axially disposed at the limiting protrusion. In the middle of the 413, it can be in contact with the inner wall surface of the limiting groove 214. The side surface of the limiting protrusion 413 is elastically biased by the elastic element 22 so that the entire sliding block 41 has a resilient force moving in the direction of the bypass flow path, and the bottom surface of the limiting protrusion 413 is provided with two adjusting screw holes. 414 'Each adjusting screw hole 414 can be screwed into the adjusting screw 44. The user: finely adjusts the adjusting screw 44 to make the lower end of the adjusting screw 44 abut against the inner wall of the limit 214, thereby adjusting the sliding block. The size of the gap is vertical. The connection is the outline of the shape of each component of the mold of the invention. The setter's action and the expected performance and effect of the invention can be achieved by referring to Fig. 2 Within i 212. Referring to the drawing 'When the present invention starts the casting operation of the dragon, the casting cavity 101 reaches the channel flow path 6' of the first die cutting 21. At this time, the sliding block 41 has not been pushed, and the casting material 201231189 can be passed through the runner flow path 212. Start to enter the molding cavity. Referring to Fig. 7, next, once the casting material enters the molding void I [the pressing portion 411 of the sliding block 41 is pressed, the sliding block 41 is sensitively moved toward the vacuum flow path 213, and the convex portion of the sliding block 41 is moved. 411 will closely fit on one side of the tooth portion 312, and the more the casting material pushes the convex tooth portion 411, the closer the convex portion 411 and the tooth portion 312 fit, so that the moment can be turned off in an instant. The flow path 213 'the scaly material is halved by the flank of the tooth portion 411 which is undulating on one surface, and is buffered and decelerated by the plurality of convex tooth portions 411, so that the prayer material can be surely condensed in the molding cavity. In summary, the mold vacuum valve device of the present invention is mainly for solving the problem of forming the conventional vacuum valve 1 ,, and the technical means adopted is to provide a sliding between the first mold body 21 and the first mold body 31. In the block 41, a convex tooth portion 411 having a concave-convex shape is formed on the sliding block 41. When the casting material touches the convex tooth portion 411, the entire sliding block 41 can be moved immediately in an instant, and the vacuum flow path 213 is closed. The convex tooth portion 411 of the sliding block 41 can be closed against the toothed portion 31.2 of the second mold body 31 to reliably decelerate the casting material. Thus, the casting material can be surely condensed in the molding cavity ^ The finished casting of the invention has excellent casting quality. The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention's implementation, that is, the simplicity of the application according to the present invention and the content of the description of the month of the month. Equivalent variations and modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional I air valve; FIG. 2 is an exploded perspective view of a preferred embodiment of a mold vacuum valve device of the present invention, illustrating a state in which the present invention is installed in a mold; 3 is an exploded perspective view of the above preferred embodiment, illustrating that the present invention includes a first mold unit, a second mold unit, and a slider unit; FIG. 4 is an exploded perspective view of the above preferred embodiment, illustrating another perspective view According to the situation of the present invention; a molding gap is formed between the working unit and the sliding block unit; Fig. 6 is a view showing the action forming gap of the above preferred embodiment, and the drawing indicates that the casting starts to enter the drawing. 7 is the case where the gap in the above preferred embodiment is buffered. Figure, showing the casting material in the 蜇 蜇 2012 201231189 [Main component symbol description] 20........ - First mold unit 41 '... •... Slide block 21........ •• The first mold body 411... The convex tooth portion 211... • The sliding surface 412... The circular groove 212 ----- • The wash channel 413... The limit projection 213... • Vacuum flow Road 414... •...Adjustment screw hole 214... '·Limit slot 42·.-··•...roller 2 15 —,, • Recessed hole 43···· •...Roller 22.... 'Elastic element 44·····Adjusting screw 3 0...·Second mold unit 1...·Mold 3 1........••Second mold body 100... •...Upper shaft 3 11... ••Forming die face 101... •...cavity hole 3 12... •Type toothing 200... ...·lower die 40........ 201...