鍵盤空格鍵注射模具設(shè)計(jì)及制造工藝說明書(存儲(chǔ)版)
【正文】 氣4）防止型芯變形和嵌件位移5）便于修整澆口以保證塑件外觀質(zhì)量6）澆注系統(tǒng)應(yīng)結(jié)合型腔布局同時(shí)考慮7）流動(dòng)距離比和流動(dòng)面積比的校核澆注系統(tǒng)采用普通流道的澆注系統(tǒng),材料采用碳素體工具鋼T8Aa、主流道尺寸由注射機(jī)型號(hào),查得注射機(jī)的噴嘴直徑為2mm,噴嘴球面半徑為10mm。7) 便于模具加工制造。由于分型面受到塑件在模具中的成型位置、澆注系統(tǒng)設(shè)計(jì)、塑件的結(jié)構(gòu)工藝性及精度、鑲件位置形狀以及推出方法、模具的制造、排氣、操作工藝等多種因素的影響，因此在選擇分型面時(shí)應(yīng)綜合分析比較，從幾種方案中優(yōu)選出較為合理的方案。由于注射機(jī)的鎖模機(jī)構(gòu)不同，開模行程可按以下兩種情況進(jìn)行校核：一種是開模行程與模具厚度無關(guān)；二種是開模行程與模具厚度有關(guān)。3．3鎖模力的校核鎖模力是指注射機(jī)的鎖模機(jī)構(gòu)對(duì)模具所施加的最大夾緊力，當(dāng)高壓的塑料熔體充填模腔時(shí)，會(huì)沿鎖模方向產(chǎn)生一個(gè)很大的脹型力。第三章 模具與注射機(jī)的關(guān)系模具型腔能否充滿與注射機(jī)允許的最大注射量密切相關(guān)，設(shè)計(jì)模具時(shí)，應(yīng)保證注射模內(nèi)所需熔體總量在注射機(jī)實(shí)際的最大注射的范圍內(nèi)。建議干燥條件為80～90℃下最少干燥2小時(shí)。（3）制品結(jié)構(gòu)零件的成型工藝及成型模具設(shè)計(jì)：包括制品的工藝分析，工藝計(jì)算，成型機(jī)選擇。近年來塑料成型模具的產(chǎn)量和水平發(fā)展十分迅速，在工業(yè)生產(chǎn)中對(duì)塑料模具的要求是：能高效地生產(chǎn)出外觀和性能均符合使用要求的制品。關(guān)鍵詞：模具技術(shù)、塑料、制品、參數(shù)、計(jì)算AbstractIn order to ensure a qualified plastic molding products, to meet product use requirements designed to ensure the smooth progress of molding processes, improve labor productivity, reduce costs, must be based on the requirements of plastics and plastic process performance, a careful analysis of products, processes or the proper design plastic products, to determine the correct method of forming and molding processes, correct choice of molding process conditions, the proper design and selection of a suitable plastic mold molding machine. In the plastic molding process, and all kinds of plastic mold structure and the design calculations, based on a plastic mold is a brief description of the design example.This design is the keyboard blank plastic molding process and mold design. According to the mandate given by the instructor to find a parts book their own kind, their own mapping, application ug software, create a part model diagram, and then create a subtype surface, and to remain in the dynamic simulation model diagram part and the fixed mold section. At the same time, due to the design of keyboard blank in industrial product design is a kind of more practical product design, involving various factors. An overview of the process performance of plastic products on the socket cover injection molding process was analyzed, and select injection molding machine injection molding machine, as well as process parameters, fully discussed with plastic cup with a hand
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