【正文】 5(2 ??? 澆件 hhS 式中 件h — 塑料制品高度 (mm)； 澆h — 澆注系統(tǒng)高度 (mm)。 mmhh 1 1 81052282)10~5(2 ??????? 澆件 S=300mm 118mm 故滿足要求。 模具在注射機(jī)上的安裝 從標(biāo)準(zhǔn)模架外形尺寸看小于注射機(jī)拉桿空間，并采用壓板固定模具，所以選注射機(jī)規(guī)格滿足要求。 河北工程大學(xué)畢業(yè)設(shè)計(jì) 25 第六章、推出機(jī)構(gòu)的設(shè)計(jì)與校核 推件力的計(jì)算 則脫模力的計(jì)算為： )k)(1m(12 f fLSErF t ??? ?????? ? tF — 脫模力（推出力）（ N ） E — 塑料彈性模量（ 2cmN ， PA塑料取 cmN? ） S 塑料的平均成型收縮率（ ） L 包容凸模的長(zhǎng)度（ ） f 塑料與剛的摩擦系數(shù)（ ABS塑料取 ） m 塑料的帕松比（取 ） rttk ??? 222 2? t 塑料平均壁厚 ( ) r 圓柱半徑 ( ) )(1)(1 ???? ??????? ?tF =（ N ） 推桿的設(shè)計(jì) 推管的直徑計(jì)算 根據(jù)零件的要求 推管外直徑 D1=40mm，內(nèi)直徑 D2=30mm 推管 壓力校核 查《塑料模設(shè)計(jì)手冊(cè)》式 598 sdn Q ??? ??? 24 s? 取 2320 mmN 河北工程大學(xué)畢業(yè)設(shè)計(jì) 26 22 / 684 4189 mmN???? ?? ? s? 推桿應(yīng)力合格，硬度 65~HRC50 推板強(qiáng)度校核 推板選用 45鋼，允許變形 。 查《塑料模設(shè)計(jì)手冊(cè)》由式 5103得： 3 EByQLH ? H — 推板厚度 cm L — 推桿間距 cm Q — 總脫模力 N B — 推板寬度 cm E — 鋼材的彈性模量 2cmN (鋼的彈性模量 2710 cmN?? ) y — 推板允許最大變形量 cm mmmmH 10 7 ???????? 所以推板強(qiáng)度合格。 河北工程大學(xué)畢業(yè)設(shè)計(jì) 27 總結(jié) 畢業(yè)設(shè)計(jì)我在大學(xué) 4年中的最后一個(gè)重要的環(huán)節(jié)，是對(duì) 4年中的所學(xué)知識(shí)的一個(gè)匯總和概括，它要我們 每個(gè)人都用自己所學(xué)到的知識(shí)和對(duì)其的理解，充分運(yùn)用到這次的設(shè)行中去，雖然還有很多知識(shí)不了解，需要進(jìn)一步加深理解，但我會(huì)努力使這次畢業(yè)設(shè)計(jì)做好。 在校的這四年期間，開(kāi)設(shè)的各門課程，比如《機(jī)械制圖及 AUTOCAD》、《機(jī)械設(shè)計(jì)》、《機(jī)械制造》、《液壓傳動(dòng)》、《數(shù)控機(jī)床及編程》等課程，這些課程對(duì)我們搞好這次畢業(yè)設(shè)計(jì)有很大的幫助，我們右以綜合運(yùn)用所學(xué)的這些課程，加之我們平時(shí)的知識(shí)積累和老師的極大幫助和指導(dǎo)，為這次畢業(yè)設(shè)計(jì)提供了非常有利的保障。 即將畢業(yè)的我，屆即將要面對(duì)自己以后的人生，在以后的工作中難免會(huì)遇到一些問(wèn)題或麻煩，這時(shí)就要靠自己以前所學(xué)的知識(shí)和積累的經(jīng)驗(yàn)去解決它。隨著科學(xué)技術(shù)的高度發(fā)達(dá)，一些質(zhì)量?jī)?yōu)、性能好、效率高、能耗低、價(jià)格低廉的產(chǎn)品將開(kāi)發(fā)出來(lái)并淘汰那些老的生產(chǎn)技術(shù)或設(shè)備。因此，我們應(yīng)該樹(shù)立良好的設(shè)計(jì)思想，重視對(duì)自己進(jìn)行機(jī)械設(shè)計(jì)能力的培養(yǎng)；善于利用各種信息資源，擴(kuò)展知識(shí)面和能力；培養(yǎng)嚴(yán)謹(jǐn)、科學(xué)、創(chuàng)新與創(chuàng)業(yè)、艱苦奮斗的企業(yè)精神，加強(qiáng)環(huán)境保護(hù)意識(shí)，做到清潔生產(chǎn)和文明生產(chǎn)，以最大限度的獲得企業(yè)效益和社會(huì)效益。 所以，在以后的工作中，需要繼續(xù)學(xué)習(xí)和加深對(duì)知識(shí)的了解。在此我非常感謝李麗老師在設(shè)計(jì)過(guò)程中對(duì)我的指導(dǎo)和幫 助，在此向劉老師致以誠(chéng)摯的謝意！ 河北工程大學(xué)畢業(yè)設(shè)計(jì) 28 參考文獻(xiàn) 1. 伍先明等 .《塑料模具設(shè)計(jì)指導(dǎo)》 .北京：國(guó)防工業(yè)出版社 .. ，古盈菴，莫雨松等 .《互換性與技術(shù)測(cè)量》 .北京：中國(guó)計(jì)量出版社 .. ，陳雪江，肖新華 .《 AutoCAD2021 中文版機(jī)械圖形設(shè)計(jì)》北京 :清華大學(xué)出版社 .. ，王金，鐘廷志 .《 Pro/ENGINEER Wildfire 中文版模具設(shè)計(jì)》 .北京：人民郵電出版社 .. . 《 Pro/ENGINEER 野火版模具設(shè)計(jì)實(shí)例 精講》 .北京：人民郵電出版社 .. .《模具設(shè)計(jì) — Pro/ENGINEER Wildfire 中文版實(shí)例詳解》 .北京：人民郵電出版社 .. .《塑料模具設(shè)計(jì)與制造》 .北京：高等教育出版社 .2021. .《塑料模具圖冊(cè)》 .北京 :高等教育出版社 .2021. .《塑料成形工藝與模具設(shè)計(jì)》 .北京：高等教育出版社 .2021. .《模具制造實(shí)訓(xùn)教程》 .北京：機(jī)械工業(yè)出版社 .2021. .《實(shí)用模具技術(shù)手冊(cè)》 .北京：機(jī)械工業(yè)出版社 .2021. .《注塑模具設(shè)計(jì) 技術(shù)及實(shí)例》 .北京：機(jī)械工業(yè)出版社 .. .《實(shí)用塑料注塑模設(shè)計(jì)與制造》 .北京：機(jī)械工業(yè)出版社 .. ，王效岳編著 .《注塑模具典型結(jié)構(gòu) 100 例》 .北京：中國(guó)輕工業(yè)出版社 .2021. .《塑料成型工藝模具設(shè)計(jì)》 .北京：高等教育出版社 .. ，王群 .《塑料成型工藝及模具設(shè)計(jì)》 .北京：機(jī)械工業(yè)出版社 .. 河北工程大學(xué)畢業(yè)設(shè)計(jì) 29 致 謝 這次帶輪的模具設(shè)計(jì)，是對(duì)我這四年大學(xué)學(xué)習(xí)的一次檢驗(yàn)，通過(guò)這次設(shè)計(jì)，我補(bǔ)充了在理論學(xué)習(xí)中的一些漏洞， 使 我掌握了在注塑工藝中應(yīng)重視的問(wèn)題，使我詳細(xì)的知道了塑件成型的工藝過(guò)程，并通過(guò)熟悉和查閱與注塑方面相關(guān)資料，掌握了一般的設(shè)計(jì)方法和設(shè)計(jì)技巧，而且對(duì)樹(shù)立正確的設(shè)計(jì)思想，培養(yǎng)我用所學(xué)專業(yè)知識(shí)去分析、解決在實(shí)際生產(chǎn)和生活中遇到問(wèn)題能力都是有很重要的實(shí)際意義。培養(yǎng)了我獨(dú)立思考的能力，使我可以更多得考慮問(wèn)題?？紤]制品在使用，美觀，而且要占領(lǐng)市場(chǎng)所需要考慮的問(wèn)題。 本次畢業(yè)設(shè)計(jì)中，我的指導(dǎo)老師李麗老師，對(duì)我在資料的查找收集和整理以及模具設(shè)計(jì)的過(guò)程中所遇到的問(wèn)題，給以極大的幫助和指導(dǎo)，同時(shí)也得到了其他多位老師和同學(xué)們的熱心 幫助，使我學(xué)到了很多課堂學(xué)不到的東西，培養(yǎng)了我多思考，勤查資料，多動(dòng)手的習(xí)慣。這次我的設(shè)計(jì)結(jié)果，也是老師和同學(xué)們的功勞，對(duì)在此過(guò)程中給予我?guī)椭母魑焕蠋熀屯瑢W(xué)表示由衷心的感謝！我會(huì)繼續(xù)學(xué)習(xí)，不辜負(fù)老師的期望，也對(duì)的起同學(xué)們的幫助。祝愿老師們工作順利，身體健康，合家歡樂(lè)。祝福我的同學(xué)們學(xué)業(yè)有成，以后事業(yè)順心，前途無(wú)量！ ag an employment tribunal clai Emloyment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: you don39。t agree with the disciplinary action your employer has taken against you your employer dismisses you and you think that you have been dismissed unfairly. For more informu, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. ation about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept i. If you are worried about how the time limits apply to you If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。t charge you more than 35% of your pensation if you win the case. you39。re clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by , click on nearest CAB. For more information about making a claim to an employment tribunal, see Employment tribunals. The (lack of) air up there Cay man Islandsbased Webb, the head Watch m of Fifa39。s antiracism taskforce, is in London for the Football Association39。s 150th anniversary 河北工程大學(xué)畢業(yè)設(shè)計(jì) 30 celebrations and will attend City39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Ya ya Toure, he told BBC Sport. For me it39。s about how he felt and I would like to speak to him first to find out what his experience was. Uefa has opened disciplinary proceedings against CSKA for the racist behaviour of their fans during City39。s 21 win. Michel Platini, president of European football39。s governing body, has also ordered an immediate investigation into the referee39。s actions. CSKA said they were surprised and disappointed by Toure39。s plaint. In a statement the Russian side added: We found no racist insults from