【正文】 正常的損壞絕大多數(shù)是由于操作不當(dāng)所致模具的徹底報(bào)廢。注射機(jī)的開模行程是有限的，取出制品所需的開模距離必須小于注射機(jī)的最大開模距離，本模具為單分型面注射模具，SZY500型螺桿式注射機(jī)的最大開模行程與模厚無關(guān)，校核關(guān)系為SH1+H2+(5～10)試中S注射機(jī)的最大開模行程，查參考設(shè)計(jì)手冊得SX—ZY500型柱塞式注射機(jī)的開模行程S=500mm； H1塑件脫模所需的推出距離，該塑件的脫模推出距離為40mm H2塑件的高度（不包括澆注系統(tǒng)高度），該塑件的高度為10mm；計(jì)算得 H1+H2+(5～10)=40+10+10=60S=500mm以上分析證明，SZY500型螺桿式注射機(jī)能滿足要求，故可以采用。10+ 0 12+ 0 26+ 0 0 型芯的高度尺寸6 + 0Hm=[（1+Scp）Ls+] 0 9+ 0 0 + 0 0 中心距22177。由于電加熱清潔、結(jié)構(gòu)簡單、可調(diào)節(jié)范圍大，所以在該模具應(yīng)用電加熱。成型塑件內(nèi)壁的大型芯裝在動模板上。l=(～)+b/2,取l=2 mm。當(dāng)塑料熔體通過澆口時(shí)，剪切速率增高，同時(shí)熔體的內(nèi)磨檫加劇，使料流的溫度升高，粘度降低，提高了流動性能，有利于充型。但加工困難，而且正方形截面不易脫模，所以在實(shí)際生產(chǎn)中較常用的截面形狀為梯形、半圓形及U形?？紤]到塑件的外觀要求較高，以及一模八腔的布置、PC對剪切速率較為敏感等因素，澆口采用分便加工修整、凝料去除容易且不會在塑件外壁留下痕跡的側(cè)澆口，模具采用單分型面結(jié)構(gòu)兩板模，模具制造成本比較容易控制在合理的范圍內(nèi)。而且應(yīng)使塑件流在動模部分，由于推出機(jī)構(gòu)通常設(shè)置在動模的一側(cè)，將型芯設(shè)置在動模部分，塑件冷卻收縮后包緊型芯，使塑件留在動模，這樣有利脫模。 綜上所述，該塑件可采用注射成型加工。而且它是工程塑料片材，擁有多樣的厚度，外觀、色彩，可以生產(chǎn)出附加值更高的產(chǎn)品。目前在汽車和家電行業(yè)中正逐步推廣使用?，F(xiàn)代生產(chǎn)中，合理的加工工藝、高效的設(shè)備、先進(jìn)的模具是必不可少是三項(xiàng)重要因素，尤其是模具對實(shí)現(xiàn)材料加工工藝要求、塑料制件的使用要求和造型設(shè)計(jì)起著重要的作用。塑件的工藝分析 ………………………………………………3 通過對塑件進(jìn)行工藝的分析和比較,最終設(shè)計(jì)出一副注塑模。在日本，模具被譽(yù)為“進(jìn)入富裕的原動力”，德國則冠之為“金屬加工業(yè)的帝王”，在羅馬尼亞則更為直接：“模具就是黃金”。同時(shí)也非常感謝馬老師的精心教誨。 硬聚氯ABSTRACTThe main topic is covered in mold design for the base, the base covered with a light weight, easy to clean, corrosionresistant aging, high strength, long service life, making easy, low prices and so on. Through the process of plastic parts for analysis and parison, the final design of an injection mold. Process from the product structure of the project, specific mold structure starting on the casting mold system, mold forming part of the structure, the top out of the system, cooling system, the choice of injection molding machines and related parameters of the check, there are detailed design, while and simple preparation of the mold process. Through the entire design process that can be achieved in the mold plastic parts required in this process Rich source of raw materials, plastic products, low price and excellent performance characteristics. It is in puters, mobile phones, cars, motors, electrical, instrumentation, home appliances and munication products manufacturer has an irreplaceable role, the application is extremely broad. Pieces of molding thermoplastic injection molding is the main method, so a wide range of applications. Injection molding is the plastic material into the barrel through the heating and melting, making the high viscosity of the fluid pressure with a plunger or a screw as a tool to melt at a higher pressure through the nozzle into the mold cavity, after cooling, freezing stage, then emerge from the mold, a plastic products. Based on the volume and determine the process performance of plastic injection molding method using plastic parts production. The product is designed for mass production, so the design of the mold have a high Zhusu efficiency, feed system to be able to automatic ejection, in addition to ensure the quality of plastic surface using point gate, so we choose a single sub surface injection mold, points gate automatic ejection structure. Mold cavity eightcavity mold with a balanced layout, gating system using point gate forming, introduced in the form of introduction agencies to plete sixteen putting the introduction of plastic parts. As performance requirements of plastic injection molding process in the cooling system, so also in the mold design to design. The only reference to the design of a large number of paper documents, and access to information on the Internet, the design process is plete. Key words ：Single parting injection mould base cover Hard PVC朗讀顯示對應(yīng)的拉丁字符的拼音目 錄前 言 ……………………………………………………………………I中文摘要 ………………………………………………………………Ⅱ英文摘要 ………………………………………………………………III第一章在大批量生產(chǎn)塑料制品時(shí)，應(yīng)盡量減少開模、合模的過程和取制件過程中的手工勞動，為此，常采用自動開合模自動頂出機(jī)構(gòu)，在全自動生產(chǎn)時(shí)還要保證制品能自動從模具中脫落。采用熱流道技術(shù)的模具可提高制件的生產(chǎn)率和質(zhì)量，并能大幅度節(jié)省塑料制件的原材料和節(jié)約能源，所以廣泛應(yīng)用這項(xiàng)技術(shù)是塑料模具的一大變革。為此，首先要制訂統(tǒng)一的國家標(biāo)準(zhǔn)，并嚴(yán)格按標(biāo)準(zhǔn)生產(chǎn)；其次要逐步形成規(guī)模生產(chǎn)，提高商品化程度、提高標(biāo)準(zhǔn)件質(zhì)量、降低成本；再次是要進(jìn)一步增加標(biāo)準(zhǔn)件的規(guī)格品種。我們必須很好多處理底座蓋壁厚的均勻，譬如在注塑成型過程中因?yàn)楸诤竦牟痪鶆蛟斐闪耸湛s率的不一致，這樣就只能通過有效的控制模具溫度來調(diào)節(jié)收縮率。 ③為使塑件順利脫模，可在塑件內(nèi)部處增設(shè)1176。5002注射壓力/MPa10403鎖模力/kN14004動、定模模板最大安裝尺寸/（mmmm）620x5205最大模具厚度/mm4506最小模具厚度/mm3007最大開模行程/mm5008噴嘴前端球面半徑/mm129噴嘴孔直徑/mm410定位圈直徑/mm125第三章 分型面及澆注系統(tǒng)的設(shè)計(jì) 塑料在模具型腔凝固形成塑件，為了將塑件取出來，必須將模具型腔打開，也就是必須將模具分成兩部分，即定模和動模兩大部分。（4）對多型腔應(yīng)盡可能使塑料熔體在同一時(shí)間內(nèi)進(jìn)入各個(gè)型腔的深處及角落，及分流道盡可能平衡布置。定位