塑料閥體注塑模設(shè)計(jì)

機(jī)械論文編號(hào):JX682  論文字?jǐn)?shù):16854.頁數(shù):39 附任務(wù)書,開題報(bào)告,外文翻譯,答辯PPT,CAD圖紙
目  錄
1前言 1
1.1蓬勃發(fā)展的模具工業(yè) 1
1.2塑料模具工業(yè)的現(xiàn)狀和技術(shù)的主要發(fā)展方向 1
2 塑件的成形工藝性分析 4
2.1 塑件材料的選擇及其結(jié)構(gòu)分析 4
2.2 ABS的注射成型工藝 5
2.3 ABS性能分析 6
2.4 ABS成型塑件的主要缺陷及消除措施 7
3 確定模具基本結(jié)構(gòu) 8
3.1 確定分型面 8
3.2 確定型腔數(shù)量及排列方式 10
3.3 模具結(jié)構(gòu)形式的確定 10
4 注塑機(jī)的選擇和有關(guān)工藝參數(shù)的校核 12
4.1 所需注射量的計(jì)算 12
4.2 注射機(jī)型號(hào)的確定 12
4.3 注射機(jī)的校核 13
5 澆注系統(tǒng)設(shè)計(jì) 16
5.1 主流道的設(shè)計(jì) 16
5.2 冷料穴的設(shè)計(jì) 18
5.3 分流道的設(shè)計(jì) 18
5.4 澆口的設(shè)計(jì) 18
6 溫度調(diào)節(jié)系統(tǒng)設(shè)計(jì) 21
7 脫模機(jī)構(gòu)設(shè)計(jì) 23
7.1 脫模阻力計(jì)算 23
7.2 主要推出零件的設(shè)計(jì) 24
8 成型零部件設(shè)計(jì) 25
8.1 成型零件的選材 25
8.2 凹模部分的結(jié)構(gòu)設(shè)計(jì) 26
8.3 凸模部分的結(jié)構(gòu)設(shè)計(jì) 28
9 導(dǎo)向與定位機(jī)構(gòu)設(shè)計(jì) 30
9.1機(jī)構(gòu)的功用 30
9.2導(dǎo)向結(jié)構(gòu)的總體設(shè)計(jì) 30
9.3導(dǎo)柱的設(shè)計(jì) 31
9.4導(dǎo)套的設(shè)計(jì) 31
9.5導(dǎo)柱與導(dǎo)套的配合形式 32
10 設(shè)計(jì)總結(jié) 33
參考文獻(xiàn) 34
致  謝 35
附  錄 36

【摘要】塑料工業(yè)是當(dāng)今世界上增長最快的工業(yè)門類之一，而注塑模具是其中發(fā)展較快的種類，因此，研究注塑模具對(duì)了解塑料產(chǎn)品的生產(chǎn)過程和提高產(chǎn)品質(zhì)量有很大意義。
 本設(shè)計(jì)介紹了注射成型的基本原理，特別是雙分型面注射模具的結(jié)構(gòu)與工作原理，對(duì)注塑產(chǎn)品提出了基本的設(shè)計(jì)原則；詳細(xì)介紹了冷流道注射模具澆注系統(tǒng)、溫度調(diào)節(jié)系統(tǒng)和頂出系統(tǒng)的設(shè)計(jì)過程，并對(duì)模具強(qiáng)度要求做了說明；根據(jù)分流閥的結(jié)構(gòu)特點(diǎn)，介紹了分流閥注射模的主要結(jié)構(gòu)，該結(jié)構(gòu)解決了外螺紋側(cè)向抽芯與塑件上小孔的4個(gè)方向抽芯問題，并就模具澆注系統(tǒng)的偏心問題的解決方法進(jìn)行了說明。通過本設(shè)計(jì)，可以對(duì)注塑模具有一個(gè)初步的認(rèn)識(shí)，注意到設(shè)計(jì)中的某些細(xì)節(jié)問題，了解模具結(jié)構(gòu)及工作原理。
 【關(guān)鍵詞】塑料模具；分型面；標(biāo)準(zhǔn)；分流閥；側(cè)向抽芯；澆注系統(tǒng)；二次頂出

The plastic injection mold design of the plastic valve body
 
 [Abstract] Now the plastics industry is one of the growing quickest industry classes in the world, but the injection mold is develops the quick type. Therefore, there have biggest significance to research injection mold to understand that the plastic of production process and improve the product quality.
 This design introduced the basic principle of injection molding, specially double is divided the profile to inject molds structure and the principle of work, That proposes the basic design principle of products; Introduced the details of the system that are cold flow channel injection of mold gating、the temperature control system and the design process of going against system, and has given the explanation to the mold intensity request; The main structure of the injection mould for the difference valve of the cold and hot water machine was introduced according to the structure characteristics of the valve. The mould structure solved the problem of pulling the outer. Threaded side core and the cores for the small holes of the plastic part at four directions. And the solution to the eccentric problem of the feeding system of the mould was explained. Through this design, May to cast the mold to have a preliminary understanding, notes some certain detail questions in design, understands the mold structure and the principle of working.

 [Key Words] The plastic Mold     Parting Line   Standard     difference valve side core-pulling   feeding system   two-time ejection