五、新型說明： 【新型所屬之技術領域】 本創作涉及一種模具，尤其涉及一種用於需要按一定順序 合模的模具上的開閉器。 【先前技術】 按，在雙分型面和多分型面注射模中，需要通過一定的 機構使模具合模時按一定的順序閉合，從而依次完成合模動 作，這種機構通常稱為開閉器。 中國專利第200720127538.4專利號即揭露有一種開閉 器，該開閉器包括一主體、一卡榫銷、一滑塊、一活動銷及 一底板。所述主體鎖固於定模的外壁，該主體設有第一容銷 槽、第二容銷槽及容塊槽。所述卡榫銷一端穿容於主體的第 一容銷槽内部、另一端鎖固於動模的外壁，且卡榫銷底面對 應第一容銷槽凹設有第一卡榫槽。所述滑塊組設於主體的容 塊槽内部，該滑塊的底面設有一可供彈性元件一端組入的凹 孔，滑塊對應主體的第二容銷槽設有第三容銷槽，且第三容 銷槽的底面一侧斜設有導引面。所述活動銷一端穿容於主體 的第二容銷槽内部，另一端鎖固於承板的外壁，且活動銷底 面對應滑塊的第三容銷槽底面凹設有第二卡榫槽，該第二卡 榫銷的内側斜設有導引面；所述底板鎖固於主體底部，該底 板上端面可供彈性元件另一端抵靠。 惟，如上所述之開閉器結構複雜，零部件多，容易出現 機構失效。 【新型内容】 本創作之目的在於克服上述現有技術中的不足，提供一種 結構簡單、安全可靠、失效率低的開閉器。 M392740 為達成上述目的，本創作提供的一種開閉器，用於需要按 一定順序合模的模具上，該模具包括一上模、一中間模板及一 下模，該開閉器包括一行程桿、一行程控制件、一行程限位件 及至少一彈簧。行程桿固定裝設於上模上，行程桿中部形成有 一卡持台。行程控制件固定裝設於下模上，行程控制件設有一 第一推斜面。行程限位件可滑動地裝設於開槽内，設有一第二 推斜面。彈簧裝設於中間模板與行程限位件之間。其中，行程 限位件可伸出開槽抵頂於卡持台上，行程控制件藉由第一推斜 面作用於第二推斜面可推動行程限位件在開槽内滑動。 如上所述，本創作藉由開閉器之設計，可實現模具合模時 按一定順序依次完成合模動作，且該開閉器結構簡單，安全可 靠，失效機率低。 【實施方式】 為詳細說明本創作之技術内容、構造特徵、所達成目的及 功效，以下茲舉例並配合圖式詳予說明。 請參閱第一圖至第四圖，本創作開閉器40用於需要按一 定順序合模的模具100上，該模具100包括一上模10、一中 間模板20及一下模30。 所述中間模板20 —側處開設有一開槽21，開槽21兩側 分別設有一導槽（圖中未標示）。 請續參照第四圖、第五圖及第六圖，所述開閉器40裝設 於模具100兩側，其包括一長條狀的行程桿41、一中模限位 件42、一行程控制件43及一行程限位件44。所述行程桿41 從中部向下端開設有一凹槽411從而形成一卡持台412，行程 桿41頂端凸伸有一凸塊413，行程桿41藉由凸塊413固定裝 設於上模10上。中模限位件42固定於中間模板20上，中模 4 M392740 限位件42設有一限位槽421，行程桿41可活動地穿設於限位 槽421中，從而可以保護行程桿41。所述行程控制件43上凸 伸有兩固定塊431並藉由兩固定塊431固定裝設於下模30 上，行程控制件43設有一貫穿上下的滑槽432，行程控制件 43上端設有一第一推斜面433，行程桿41可上下滑動的穿設 於行程控制件43之滑槽432内。 本創作中，行程限位件44可滑動地裝設於中間模板20之 開槽21中，行程限位件44可伸出開槽21抵頂於卡持台412 上，行程限位件44設有一第二推斜面441，行程控制件43藉 由第一推斜面433作用於第二推斜面441而推動行程限位件 44在開槽21内滑動，行程限位件44後部處開設有兩容置槽 442，行程限位件44兩側處向外凸伸形成導板443，導板443 沿導槽在開槽21内滑動。中間模板20與行程限位件44之間 裝設有彈簧45,彈簧45 —端容置於容置槽442中，另一端抵 頂於開槽21 —端槽壁上，且可推抵行程限位件44發生位移。 請參照第二圖及第三圖，本創作具有開閉器的模具100合 模前，藉由行程桿41之卡持台412抵頂於行程限位件44之頂 壁上從而可確保上模10及中間模板20保持一定距離，此時上 模10及中間模板20可一起向下移動而使中間模板20與下模 30合模。中間模板20與下模30合模到位後，行程控制件43 藉由第一推斜面433作用於第二推斜面441而推動行程限位件 44壓縮彈簧45向開槽21内滑動，從而行程桿41之卡持台411 與限位件44之頂壁脫開，由此上模10可與中間模板20進行 合模。如此，本創作具有開閉器的模具100之開閉器40確保 了在下模30及中間模板20沒有完全合模到位前，可靠的支撐 住上模10，在中間模板20及下模30完全合模後，上模10及 中間模板20才開始自動合模，確保準確的合模順序，模具工 5 M392740 件也不會受到損壞。 綜上所述，本創作藉由開閉器40之設計，可實現模具100 合模時按一定順序依次完成合模動作，且該開閉器40結構簡 單，安全可靠，失效機率低。 【圖式簡單說明】 第一圖為本創作具有開閉器的模具的側視圖。 第二圖為本創作具有開閉器的模具合模前的側視剖面圖。 第三圖為本創作具有開閉器的模具合模後的侧視剖面圖。 第四圖為本創作開閉器的立體分解圖。 第五圖為第四圖之行程限位件的立體圖。 第六圖為第四圖之行程桿的立體圖。 【主要元件符號說明】 模具 100 上模 10 中間模板 20 開槽 21 下模 30 開閉器 40 行程桿 41 凹槽 411 卡持台 412 凸塊 413 中模限位件 42 限位槽 421 行程控制件 43 固定塊 431 滑槽 432 第一推斜面 433 行程限位件 44 第二推斜面 441 容置槽 442 導板 443 彈簧 45 6V. New description: [New technical field] The present invention relates to a mold, and more particularly to a shutter for a mold that needs to be clamped in a certain order. [Prior Art] In the double-part and multi-part injection molds, it is necessary to close the mold in a certain order by a certain mechanism, thereby completing the mold clamping operation in turn, which is usually called a shutter. . The Chinese Patent No. 200720127538.4 discloses a shutter which includes a main body, a latch, a slider, a movable pin and a bottom plate. The main body is locked to the outer wall of the fixed mold, and the main body is provided with a first pin-fitting groove, a second pin-fitting groove and a block groove. One end of the latching pin is received in the first receiving pin slot of the main body, and the other end is locked on the outer wall of the movable die, and the bottom surface of the latching pin corresponding to the first pinning slot is recessed with the first latching groove. The slider assembly is disposed inside the cavity of the main body, the bottom surface of the slider is provided with a concave hole for the elastic component to be assembled at one end, and the second tolerance pin groove of the slider corresponding to the main body is provided with a third tolerance pin groove. And a guiding surface is obliquely disposed on a bottom surface side of the third receiving pin groove. One end of the movable pin is received in the second receiving pin groove of the main body, and the other end is locked on the outer wall of the receiving plate, and the bottom surface of the movable pin corresponding to the bottom of the third receiving pin groove of the sliding block is recessed with a second latching groove. The inner side of the second latching pin is obliquely provided with a guiding surface; the bottom plate is locked to the bottom of the main body, and the upper end surface of the bottom plate is adapted to abut the other end of the elastic member. However, as described above, the shutter has a complicated structure and many components, and is liable to cause mechanical failure. [New Content] The purpose of the present invention is to overcome the deficiencies in the prior art described above and to provide a shutter which is simple in structure, safe and reliable, and has low failure rate. M392740 In order to achieve the above object, the present invention provides a shutter for a mold that needs to be clamped in a certain order, the mold comprising an upper mold, an intermediate mold and a lower mold, the shutter comprising a stroke rod, a stroke a control member, a stroke limiter and at least one spring. The stroke rod is fixedly mounted on the upper mold, and a holding platform is formed in the middle of the stroke rod. The stroke control member is fixedly mounted on the lower mold, and the stroke control member is provided with a first inclined surface. The travel limiter is slidably mounted in the slot and is provided with a second push ramp. The spring is disposed between the intermediate template and the travel limiter. Wherein, the stroke limiting member can extend out of the slot to abut against the clamping platform, and the stroke control member acts on the second pushing surface by the first pushing inclined surface to push the stroke limiting member to slide in the slot. As described above, the present invention can realize the mold clamping operation in a certain order by the design of the shutter, and the shutter has a simple structure, is safe and reliable, and has a low failure probability. [Embodiment] In order to explain in detail the technical contents, structural features, achieved goals and effects of the present invention, the following is a detailed description with reference to the drawings. Referring to the first to fourth figures, the present shutter 40 is used on a mold 100 that needs to be clamped in a certain order, and the mold 100 includes an upper mold 10, an intermediate mold 20, and a lower mold 30. A slot 21 is defined in the side of the intermediate template 20, and a slot (not shown) is disposed on each side of the slot 21. Referring to the fourth, fifth and sixth figures, the shutter 40 is mounted on both sides of the mold 100, and includes an elongated stroke rod 41, a middle mold limiting member 42, and a stroke control. A piece 43 and a stroke limiter 44. The travel lever 41 defines a recess 411 from a central portion to a lower end to form a latching platform 412. A protrusion 413 is protruded from a top end of the stroke rod 41. The stroke rod 41 is fixedly mounted on the upper mold 10 by a bump 413. The middle mold limiting member 42 is fixed on the intermediate die plate 20, and the central die 4 M392740 retaining member 42 is provided with a limiting slot 421. The stroke bar 41 is movably disposed in the limiting slot 421, so that the stroke bar 41 can be protected. A plurality of fixing blocks 431 are protruded from the stroke control member 43 and are fixedly mounted on the lower mold 30 by two fixing blocks 431. The stroke control member 43 is provided with a sliding groove 432 extending through the upper and lower sides, and the upper end of the stroke control member 43 is provided with a The first push surface 433 is disposed in the sliding groove 432 of the stroke control member 43 so as to be slidable up and down. In the present invention, the travel limiting member 44 is slidably mounted in the slot 21 of the intermediate die plate 20, and the travel limiting member 44 can extend beyond the slot 21 against the latching platform 412, and the travel limiting member 44 is provided. There is a second slanting surface 441. The stroke control member 43 acts on the second slanting surface 441 by the first slanting surface 433 to push the stroke limiting member 44 to slide in the slot 21. The second end of the stroke limiting member 44 is provided with two capacities. The groove 442 is formed at both sides of the travel limiting member 44 to form a guide plate 443, and the guide plate 443 slides along the guide groove in the slot 21. A spring 45 is disposed between the intermediate die plate 20 and the travel limiter 44. The spring 45 is disposed in the receiving slot 442, and the other end is abutted against the slot 21 and the end slot wall, and can be pushed to the stroke limit. The bit 44 is displaced. Referring to the second and third figures, before the mold 100 having the shutter is clamped, the upper mold 10 can be secured by the holding platform 412 of the stroke rod 41 abutting against the top wall of the travel limiting member 44. And the intermediate template 20 is kept at a certain distance. At this time, the upper mold 10 and the intermediate mold 20 can be moved downward together to clamp the intermediate mold 20 and the lower mold 30. After the intermediate die plate 20 and the lower die 30 are clamped into position, the stroke control member 43 acts on the second push ramp surface 441 by the first push ramp surface 433 to push the stroke limit member 44 to compress the spring 45 to slide into the slot 21, thereby the stroke lever. The chucking table 411 of the 41 is disengaged from the top wall of the stopper 44, whereby the upper die 10 can be clamped with the intermediate die plate 20. Thus, the shutter 40 of the mold 100 having the shutter has ensured that the upper mold 10 is reliably supported before the lower mold 30 and the intermediate mold 20 are not fully clamped in place, after the intermediate mold 20 and the lower mold 30 are completely closed. The upper mold 10 and the intermediate mold 20 are automatically clamped to ensure an accurate mold clamping sequence, and the molder 5 M392740 pieces are not damaged. In summary, the design of the shutter 40 can realize the mold clamping operation in a certain order when the mold 100 is clamped, and the shutter 40 has a simple structure, is safe and reliable, and has a low failure probability. [Simple description of the drawings] The first figure is a side view of a mold having a shutter. The second figure is a side cross-sectional view of the mold having the shutter before it is clamped. The third figure is a side cross-sectional view of the mold with the shutter closed after the mold is clamped. The fourth figure is an exploded perspective view of the creation shutter. The fifth figure is a perspective view of the travel limiter of the fourth figure. The sixth figure is a perspective view of the stroke bar of the fourth figure. [Main component symbol description] Mold 100 Upper die 10 Intermediate die plate 20 Slot 21 Lower die 30 Opener 40 Stroke lever 41 Groove 411 Holding table 412 Bump 413 Medium die stop 42 Limit groove 421 Stroke control member 43 Fixed block 431 chute 432 first push surface 433 travel limit member 44 second push surface 441 accommodating groove 442 guide 443 spring 45 6