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摘 要:遙控器是常用的家電產(chǎn)品,本課題介紹了遙控器后蓋的注塑工藝過程。該模具采用流動性、穩(wěn)定性較好的ABS塑料,通過分析塑件的材料特性和結(jié)構(gòu)特性,根據(jù)塑件與澆注系統(tǒng)體積粗選注塑機,由塑件尺寸分別對模具型腔、型芯的徑向和深度方向進行尺寸計算,選取一系列標準件如:標準模架、澆口套等。 根據(jù)塑件尺寸結(jié)構(gòu)選擇分型面與合適的型腔布置方案,計算并設計了主流道、澆口尺寸及澆口布置方案。再由零件總體尺寸計算出鑲件大小,根據(jù)塑件布置形式設計出了推出機構(gòu)與拉料桿,并設計出排氣系統(tǒng)與冷卻系統(tǒng)。 由模架和澆注系統(tǒng)的參數(shù)校核注塑機的注塑壓力、鎖模力。通過模具與注塑機的安裝尺寸進行了模具高度與注塑機裝配高度、模具外形尺寸與拉桿尺寸、模具行程與注塑機開模行程參數(shù)的校核。最后,介紹了模具的安裝、調(diào)試與維護。 關鍵詞:遙控器后蓋 ABS 注塑機 模具設計
Abstract:Remote control is widely used in household electrical appliances, this topic describes the back cover of the remote control plastic injection molding process. The mold is used by ABS plastic, with a better mobility and stability. According to analysis the material properties and structural characteristics, based on the plastic part and gating system roughing choice the injection molding machine for plastic parts. According to the plastic size, the mold cavity dimensions respectively and the core's radial dimensions and depth calculation, select a range of standard components such as: standard die set, sprue bushing, etc. Base on the size of the plastic part, Select the parting surface and suitable cavity layout scheme. Calculation and design the mainstream road, gate size and layout scheme of gate. By the part overall dimensions to calculate the mold insert size. According to the layout scheme of plastic parts design for the ejecting mechanism and the pull bar, then design the cooling system and exhaust system. Base on the die carrier and the parameter of the gating system, check the molding pressure and clamping force of the injection molding machine. According to the mold size and the installation dimensions of the injection molding machine, check the mould height and the assembly height of the injection molding machine, the die size and Rod size, the die stroke and the opening stroke parameter of the injection molding machine. At last, describes the installation, commissioning and maintenance of the mould. Keywords: Remote control cover;ABS; Injection molding machine;Mould design |