3509 塑料蓋注塑模具設計1
3509 塑料蓋注塑模具設計1,塑料蓋,注塑,模具設計
塑料蓋的成型工藝及注塑模設計 摘 要 從零件圖上分析：該零件總體形狀為一盒體高度方向僅與 6mm。長度方向上有 30mm。且在下端內壁里面有一個較小的外抽芯，抽芯空間較小，模具設計和制造難度均較大。由本塑件的形狀不大且在塑件內部有向外凸起的回轉結構在成型時不易脫模。傳統(tǒng)上一般把內部的型腔做成兩半的活動鑲塊用兩個銷釘一端過盈一端間隙配合將它們連接在一起脫模時連同活動型腔鑲塊一并頂出然后用手將它們分開，但此種設計不利于大批量，自動化生產的要求，因此在本副模具中對這種機構進行了改進，設計成了活動型腔的自動脫模機構。其結構設計方案如下：其工作原理：脫模時推拉桿推著活動型腔向前推進在彈簧彈力的作用下活動型腔沿套筒型芯的側壁不斷向兩邊張開，當張開當一定程度塑料在重力作用下自動脫落。頂出完成后模具閉合。在復位桿及推拉桿上彈簧受拉力的作用下活動型腔沿套筒型芯側壁回到原來的位置。關鍵詞：活動型腔 套筒型芯 推拉桿 彈簧 外抽芯The plastic covers takes shape the craft and the note molds the designAbstract : Analyzes from the detail drawing: This components overall shape is box of bodies highly directions only with 6mm. In the length direction has 30mm. Also has small outside inside the lower extremity endophragm to pull out the core, pulls out the core space slightly, the mold design and the manufacture difficulty are big. By this models a shape not to be big also in models an interior has to the outside bulge rotation structure when taking shape not the easy drawing of patterns. In the tradition the cavity makes the interior two half activity to inlay generally the block as soon as to carry with two feather pieces the excessively full end play coordination them to connect when together drawing of patterns inlays the block together with the activity cavity one and goes against then separates with the hand them, but this kind of design does not favor the mass, the automated production request, therefore has made the improvement in this mold to this kind of organization, designed the activity cavity automatic drawing of patterns organization. Its structural design plan as follows:Its principle of work: When drawing of patterns the push-pull rod pushes the activity cavity to prompt forward in under the spring tension function the activity cavity to two opens unceasingly along the sleeve core sidewall, when opens when the certain degree plastic automatically falls off under the action of gravity. After goes against completes the mold to close. The spring the activity cavity returns to on the release link and the push-pull rod under the pulling force function along the sleeve core sidewall the original position.Key word:Activity cavity Sleeve core Push-pull rod Spring Outside pulls out the core
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編號：163998
類型：共享資源
大?。?span id="2y2yokc" class="font-tahoma">359.29KB
格式：RAR
上傳時間：2017-10-27
50
積分
- 關 鍵 詞：
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塑料蓋
注塑
模具設計
- 資源描述：
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3509 塑料蓋注塑模具設計1,塑料蓋,注塑,模具設計
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