【正文】
本科畢業(yè)設(shè)計(jì)題 目:2009055調(diào)料盒塑料成型工藝與模具設(shè)計(jì) 專 業(yè): 班 級(jí): 學(xué)生姓名: 指導(dǎo)教師: 論文提交日期: 2016年 5月 28日論文答辯日期: 2016年 6 月 6 日45 / 58摘要本次設(shè)計(jì)主要研究的是調(diào)料盒,在調(diào)料盒的塑料成型工藝跟模具方面進(jìn)行設(shè)計(jì)。首先對(duì)塑件材料ABS,塑料件的尺寸精度,使用性能,表面質(zhì)量,結(jié)構(gòu)進(jìn)行分析,然后利用CAD與PROE等軟件對(duì)塑件的體積,重量,模具所需的塑料溶體注射量,鎖模力等進(jìn)行精確計(jì)算,隨后可以暫定模具生產(chǎn)所需要的設(shè)備的選擇,制定塑料成型工藝卡。重點(diǎn)在于注射模設(shè)計(jì),首先分析可注塑性,對(duì)塑件表面質(zhì)量不可忽視,表面不允許出現(xiàn)明顯的接痕,和氣泡傷疤,可以利用軟件對(duì)注塑件可能出現(xiàn)的接痕和氣泡進(jìn)行分析。然后是可制造性,確定型腔數(shù)目,模具類型,模具主要結(jié)構(gòu),在模具主要結(jié)構(gòu)設(shè)計(jì)中包括型腔布局,澆口的選擇,型面設(shè)計(jì),澆注系統(tǒng)設(shè)計(jì),排氣系統(tǒng)設(shè)計(jì),導(dǎo)向機(jī)構(gòu)設(shè)計(jì),限位拉桿設(shè)計(jì),隨后可以確定模具的主要結(jié)構(gòu)。然后選擇模架,校準(zhǔn)開模行程,計(jì)算推出距離,確定推出方式,設(shè)計(jì)側(cè)抽芯機(jī)構(gòu),冷卻系統(tǒng),隨之可以確定模具的總體結(jié)構(gòu)。分析模具結(jié)構(gòu)功能,其中包括型腔結(jié)構(gòu),型芯結(jié)構(gòu),型芯鑲件結(jié)構(gòu),模具導(dǎo)向復(fù)位結(jié)構(gòu)。計(jì)算成型零件工作尺寸,包括型芯尺寸,型腔尺寸。最后是模具的安裝與試模,利用CAD繪制模具安裝結(jié)構(gòu)圖。模具的具體工作過程是開模時(shí),注塑機(jī)開、合模系統(tǒng)帶動(dòng)定模座板以后的部分后移,首先由橡膠、尼龍拉??鄣淖饔迷谒诎迮c定模板之間移動(dòng)一段距離,把澆口里面的凝料拉斷,拉桿端部的與動(dòng)模座板接觸,在帶動(dòng)水口板移動(dòng),把主流道里面的凝料拉出來,然后在定模部分的輔助分型面之間自行脫落或由人工取出,完成第一次分型。動(dòng)模部分一起后移的同時(shí)斜滑塊在彈簧給的彈力作用下帶動(dòng)側(cè)型芯開始側(cè)抽芯,動(dòng)模繼續(xù)后離,斜滑塊也繼續(xù)在彈簧的作用下完成側(cè)抽芯,主分型面分型。因塑件包緊在型芯鑲件上,隨動(dòng)模部分繼續(xù)后移直至推出機(jī)構(gòu)開始工作,注塑機(jī)的推桿在推出機(jī)構(gòu)的作用下將塑件從型芯上推出,塑件在動(dòng)模分型面之間自行脫落,完成第二次分型,即開模過程。合模時(shí),模具在注射機(jī)推桿的作用下,由推桿推動(dòng)推板在推動(dòng)復(fù)位桿進(jìn)行復(fù)位和導(dǎo)柱導(dǎo)套的定向作用,同時(shí)斜滑塊在斜楔的作用下向里運(yùn)動(dòng),壓縮彈簧,完成合模過程。隨后可以進(jìn)行模具的安裝試模,試模前需要一些檢驗(yàn)?zāi)>唛]合高度等的準(zhǔn)備工作,然后可以進(jìn)行模具安裝調(diào)試,試模,檢驗(yàn)完成整個(gè)模具設(shè)計(jì)。因?yàn)槟>咴诂F(xiàn)代生活中越來越高的使用率,設(shè)計(jì)模具的長(zhǎng)壽命,合理性,模具成本的縮減就顯得尤為重要,本次設(shè)計(jì)中就針對(duì)這幾點(diǎn)進(jìn)行了主要設(shè)計(jì)并取得了理想的預(yù)期效果,這次設(shè)計(jì)使我對(duì)現(xiàn)在國(guó)內(nèi)模具發(fā)展生產(chǎn)狀況有了一定的了解,在模具的合理設(shè)計(jì)方面有了一定的經(jīng)驗(yàn)。關(guān)鍵詞: 注塑模; 調(diào)料盒; 長(zhǎng)壽命AbstractThe design of the main research is the condiment box,in the box of plastic molding process and mold design. First plastic material of ABS, the dimensional precision of plastic parts, performance, surface quality, structure analysis, and use CAD and proe software on the plastic parts of the volume, weight, plastic mold with the required solution injection quantity, clamping force etc. for accurate calculation, then can temporarily fixing mold production equipment and the development of plastic injection molding process card. Focusing on the design of the injection mold. Firstly, it analyzes the injection molding, and surface quality of plastic parts can not be ignored, the surface does not allow appear obvious marks, and the bubble scar, you can use the software of injection molded parts may occur after mark and bubbles were analyzed. The main structure and manufacturability, determine the number of cavity, the types of mold, die structure and in the design of the main structure of the mold including cavity layout, the choice of gate, surface design, gating system design, exhaust system design, the design of steering mechanism, limiting pull rod design, then you can determine the mold. Then select the mold base, calibration mould opening stroke calculation launch distance to determine the launch mode, design of side core pulling mechanism, cooling system, with the attendant can determine the overall structure of the mold. Analysis of mold structure function, including the cavity structure, core structure, core insert structure, mold guide reset structure. Calculate the working dimensions of the molding parts, including the core size, the size of the cavity. Finally, the mold installation and test mode, the use of CAD drawing die installation structure. Specific working process of mold is a mold, injection molding machine, synthetic simulation system drives the fixed mould seat plate part after the shift, first by the die of rubber and nylon bucklebetween the nozzle plate and the fixed template moving at a distance, to pull off the gate inside the aggregates, tie rod end with a movable mould seat plate contact, in driving the movement of the nozzle plate, the main channel inside the condensate is expected to pull out, and then the fixed mould part assisted by surface between off on their own or by manual removal, pleted the first time typing. Moving mould part together after the shift and angle slide block in the spring to the action of the elastic force of the drive side core began to side core pulling and moving die continues after moving a certain distance, slanting slide also continue to under the action of the spring to plete side core pulling, the main sub surface type. According to the plastic package tightly on the core insert. With the moving mould part to shift until launch mechanism began to work, the push rod of the injection molding machine in the agency launched the plastic parts from the core launch, plastic parts in the moving mold surface between off on their own, to plete the second type, namely the opening process. When the mold, mold in injection molding machines of the push rod, by the push rod, the push board in promoting the reset rod directional function of reset and guide pin guide sleeve, also slanting slide in under the action of the wedge to move, pression spring, to plete the mold process. Then can carry on the mold installation test mold, before the test mold needs some to test the mold closing height and so on the preparation work, then may carry on the mold installation debugging, the test mold