電子鐘后蓋注塑模具設(shè)計(jì)
3萬字 64頁

包括設(shè)計(jì)圖紙


【摘要】 本文介紹了注射模具的特點(diǎn)及發(fā)展趨勢，敘述了電子鐘后蓋注射模具設(shè)計(jì)與計(jì)算的詳細(xì)過程，介紹了該塑件的成型工藝、注射模具的結(jié)構(gòu)特點(diǎn)與工作過程, 闡述了在有斜滑塊抽芯的注射模設(shè)計(jì)中應(yīng)注意的事項(xiàng)。在對電子鐘后蓋的模具設(shè)計(jì)過程中，本設(shè)計(jì)主要設(shè)計(jì)要點(diǎn)如下：塑件的設(shè)計(jì)比較的合理；分型面的選擇有利于塑件成型；脫模機(jī)構(gòu)的設(shè)計(jì)不但結(jié)構(gòu)簡單，而且脫模動作穩(wěn)定可靠；進(jìn)澆口的選擇不影響塑件外觀，而且保證塑件充填均勻；冷卻水道的設(shè)計(jì)使模具效率達(dá)到最高，保證塑件質(zhì)量要求；在設(shè)計(jì)的過程中借用分析軟件如CAM等使設(shè)計(jì)更合理、更有效；大量使用標(biāo)準(zhǔn)件，使模具制作成本大大降低；本模具設(shè)計(jì)最關(guān)鍵的一點(diǎn)就是設(shè)計(jì)已達(dá)到實(shí)際生產(chǎn)的要求。
【關(guān)鍵詞】 電子鐘；注射模；分型面；斜滑塊；側(cè)抽芯；脫模機(jī)構(gòu)。



Design of the Injection Mould for The Back of Electronic Clock
Abstract The characteristics and developments of injection mould were introduced in this paper. The designing and calculating of injection mould for the back of electronic clock were stated in detail. The forming process of the product and the structure characteristics as well as working process of the injection mould were introduced .The points must be paid attention to in the design of the injection mould for the part with lifters were stated.In the process of the designing of the injectinon mould for electronic clock receiver, people should pay attention to several suggestions: the plastic should be designed as reasonable as possible. The selection of the sub-type parts are benificial to mold the parts of plastic. The design of the structure of drawing of pattern is not only simple but also the movement should be stable and reliable. The selection of Jin runner should ensure to fill the plastic equally under the prerequisite of not influencing the appearance of the plastic. The design of cooling penstock should make the rate of production reach to the topmost, and ensure any influence to do nothing to the equality of the plastic. Meanwhile, in the process of designing ,we can use analysis soft, such as CAM, to make the design been more reasonable and efficient. Making full use of large amounts of standard pieces will reduce the cost of mold plastic facture. The key point of the design of mold plastic have reached the request of the real production.
Keywords electronic clock; injection mould; core pulling ;selection of the sub-type parts; lifter; structure of drawing of pattern.



目 錄
摘要
前言 1
1 塑件成型工藝分析 2
1.1 塑件分析 2
1.2 塑料ABS的成型特性及工藝參數(shù) 3
2 擬定模具結(jié)構(gòu)形式 6
2.1 型腔的設(shè)計(jì) 6
2.2 分型面的設(shè)計(jì) 7
3 注塑機(jī)的選擇與確定 9
3.1 注射機(jī)的技術(shù)規(guī)范 9
3.2 注射過程注塑量的計(jì)算 10
3.3 注射機(jī)的選用 10
3.型腔數(shù)量及注射機(jī)參數(shù)的校核 11
3.5 模具與注射機(jī)安裝部分相關(guān)尺寸的校核 12
4 澆注系統(tǒng)的的設(shè)計(jì) 15
4.1 澆注系統(tǒng)設(shè)計(jì)的原則 15
4.2 主流道的設(shè)計(jì) 15
4.3 冷料穴的設(shè)計(jì) 17
4.4 分流道的設(shè)計(jì) 18
4.5 澆口的設(shè)計(jì) 21
4.6 澆注系統(tǒng)的平衡 22
5 成型零件的設(shè)計(jì) 24
5.1 成型零件的要求及選材 24
5.2 成型零件的結(jié)構(gòu)設(shè)計(jì) 24
5.3 成型零件尺寸的計(jì)算 24
5.4 型腔剛度的校核 28
6 模架的確定 32
6.1 模架的概述 34
6.2 模架的選用 34
6.3 模板尺寸的確定 34
7 導(dǎo)向機(jī)構(gòu)的設(shè)計(jì) 36
7.1導(dǎo)柱、導(dǎo)套的導(dǎo)向機(jī)構(gòu)設(shè)計(jì)要點(diǎn) 36
7.2 導(dǎo)柱的設(shè)計(jì) 36
7.3 導(dǎo)套的設(shè)計(jì) 37
8 脫模機(jī)構(gòu)的設(shè)計(jì) 39
8.1 脫模機(jī)構(gòu)的分類及設(shè)計(jì)原則 39
8.2 推桿的設(shè)計(jì)及脫模力的計(jì)算 40
8.3 脫模機(jī)構(gòu)的復(fù)位元件 42
8.4 側(cè)向分型與抽芯機(jī)構(gòu)的設(shè)計(jì) 42
9 模具冷卻系統(tǒng)的設(shè)計(jì) 45
9.1 模具加熱、冷卻系統(tǒng)的設(shè)計(jì)要點(diǎn) 45
9.2 冷卻系統(tǒng)的設(shè)計(jì) 45
10 模具材料的選用 48
10.1 模具材料選用的要求 48
10.2 注塑模具常用材料 48
11模具的工作過程 51
11.1提前預(yù)處理 51
11.2 注塑過程 51
11.3 脫模過程 51
12 全面審核投產(chǎn)制造 52
12.1 模具的安裝原則 52
12.2 試模 52
12.3 模具合格的條件 52
13 典型零件制造工藝 54
14 設(shè)計(jì)總結(jié) 59
15 致謝 60
參考文獻(xiàn) 61



參考文獻(xiàn)
[1] 中國機(jī)械工程學(xué)會，中國模具設(shè)計(jì)大典編委會．中國模具設(shè)計(jì)大典 第2卷（第1版）．江西科學(xué)技術(shù)出版社，2003
[2] 彭建生 編著. 模具設(shè)計(jì)與加工速查手冊(第1版)．機(jī)械工業(yè)出版社，2005, 599～621