【機(jī)械類(lèi)畢業(yè)論文中英文對(duì)照文獻(xiàn)翻譯】781型銑邊機(jī)維修【word英文1689字3頁(yè)word中文翻譯2527字8頁(yè)】,機(jī)械類(lèi)畢業(yè)論文中英文對(duì)照文獻(xiàn)翻譯,word英文1689字3頁(yè),word中文翻譯2527字8頁(yè),機(jī)械類(lèi),畢業(yè)論文,中英文,對(duì)照,對(duì)比,比照,文獻(xiàn),翻譯,型銑邊機(jī),維修,word,英文,中文翻譯 781型銑邊機(jī)維修 ??? 781型銑邊機(jī)維修 　　跳針是銑邊機(jī)經(jīng)常出現(xiàn)的故障，跳針可分為：下勾線(xiàn)盤(pán)勾線(xiàn)跳針和機(jī)針未勾上縫線(xiàn)跳針。 ??? 下勾線(xiàn)盤(pán)勾線(xiàn)跳針 　　如何判斷是下勾線(xiàn)盤(pán)勾線(xiàn)跳針呢？在操作中上勾線(xiàn)鉤勾住機(jī)針線(xiàn)環(huán)，機(jī)針帶著縫線(xiàn)下降，下勾線(xiàn)盤(pán)勾線(xiàn)后，這時(shí)縫料上面或線(xiàn)鉤上有線(xiàn)環(huán)，這都是因?yàn)橄鹿淳€(xiàn)盤(pán)鉤頭沒(méi)有勾住機(jī)針上的線(xiàn)環(huán)所造成的跳針。調(diào)整時(shí)機(jī)針高度的定位標(biāo)準(zhǔn)是：機(jī)針在上死點(diǎn)時(shí)機(jī)針尖距離針板上平面16mm。下勾線(xiàn)盤(pán)的勾線(xiàn)時(shí)間為：機(jī)針在第一圈下降至下死點(diǎn)后，向上回升1.3 mm時(shí)，下勾線(xiàn)盤(pán)鉤頭應(yīng)該到達(dá)機(jī)針凹面中心（圖1），鉤頭與機(jī)針凹面的間隙為零。在這里要強(qiáng)調(diào)的是通常情況下機(jī)針回升1.3 mm時(shí)，下勾線(xiàn)盤(pán)鉤頭應(yīng)到達(dá)機(jī)針中心。這是因?yàn)獒槜U下降至針板時(shí)封針被擋在了針板上方（圖2、3），機(jī)針孔向操作者的一面打開(kāi)，針孔內(nèi)的縫線(xiàn)失去了保護(hù)，機(jī)針從下死點(diǎn)稍微向上回升，機(jī)針孔內(nèi)的縫線(xiàn)失去拉力很容易形成線(xiàn)環(huán)，如果下勾線(xiàn)盤(pán)勾線(xiàn)時(shí)間略遲，在勾線(xiàn)之前縫線(xiàn)就容易從機(jī)針孔內(nèi)脫出或線(xiàn)環(huán)過(guò)大扭曲變形造成跳針。也可將下勾線(xiàn)盤(pán)勾線(xiàn)時(shí)間稍微提前。 ? ??? 機(jī)針勾線(xiàn)跳針 　　機(jī)針勾線(xiàn)跳針表現(xiàn)為：在縫制面料的正面一針或幾針沒(méi)有線(xiàn)跡，或縫了幾針后機(jī)針再也帶不上縫線(xiàn)。要排除該故障，首先應(yīng)對(duì)機(jī)器的下送線(xiàn)機(jī)構(gòu)有所了解，弄清它的工作原理、時(shí)間相位。 　　機(jī)針在第一圈的下死點(diǎn)，當(dāng)回升1.3 mm時(shí)下勾線(xiàn)盤(pán)鉤頭勾住機(jī)針線(xiàn)環(huán)，并繼續(xù)旋轉(zhuǎn)擴(kuò)大線(xiàn)環(huán)（圖4、5），依次將縫線(xiàn)送入下送線(xiàn)指內(nèi)→緊線(xiàn)鉤中→夾線(xiàn)器中。與此同時(shí)，下送線(xiàn)鉤從前行程末端，向后（操作者）擦著縫線(xiàn)運(yùn)動(dòng)到后行程末端，然后勾著縫線(xiàn)再運(yùn)動(dòng)到前行程末端停止。第二圈沒(méi)有帶縫線(xiàn)的機(jī)針下降至下死點(diǎn)后開(kāi)始回升，此時(shí)下送線(xiàn)指推著縫線(xiàn)同步向左前方圍著機(jī)針作曲線(xiàn)運(yùn)動(dòng)，下送線(xiàn)指和機(jī)針相遇時(shí)的距離為0.1 mm（圖4），在機(jī)針上升至封針?lè)庾C(jī)針孔后，下送線(xiàn)指開(kāi)始回退，緊線(xiàn)鉤松線(xiàn)，夾線(xiàn)器打開(kāi)。 ??? 　　要保證機(jī)針能順利地勾上縫線(xiàn)，那么縫線(xiàn)每次都應(yīng)在下送線(xiàn)鉤前、下送線(xiàn)指內(nèi)、夾線(xiàn)器中、緊線(xiàn)鉤內(nèi)。重要的是下送線(xiàn)鉤必須每次把縫線(xiàn)勾住，這就要求必須調(diào)整好它們的時(shí)間相位。調(diào)整時(shí)最好用觀察針板（把針板右邊磨掉一部分），以便于觀察下勾線(xiàn)盤(pán)勾線(xiàn)、下送線(xiàn)鉤勾線(xiàn)和送線(xiàn)、送線(xiàn)指的送線(xiàn)情況。下送線(xiàn)鉤在機(jī)針前行程末端時(shí)的標(biāo)準(zhǔn)位置是：下送線(xiàn)鉤和機(jī)針的距離是2.5 mm。下送線(xiàn)鉤在左面的標(biāo)準(zhǔn)位置是：下送線(xiàn)鉤鉤頭超出機(jī)針左邊0.3 mm。旋松下送線(xiàn)鉤座固定螺釘進(jìn)行調(diào)節(jié)（圖6）。下送線(xiàn)鉤的高度距離針板下面0.3 mm（圖7），旋松下送線(xiàn)鉤緊固螺釘進(jìn)行調(diào)節(jié)。為什么要距離針板這么近，主要是因?yàn)橄滤途€(xiàn)鉤越高，下送線(xiàn)鉤就越容易擦著縫線(xiàn)向后運(yùn)動(dòng)，返回時(shí)就能勾住縫線(xiàn)。機(jī)針勾線(xiàn)跳針，絕大部分都是由于下送線(xiàn)鉤沒(méi)有勾住縫線(xiàn)所造成的。下送線(xiàn)鉤的弧型背面擦著縫線(xiàn)向后運(yùn)動(dòng)，然后勾上縫線(xiàn)送向前行程末端，這一點(diǎn)尤為重要。還要注意的一點(diǎn)是，在縫制過(guò)程中出現(xiàn)斷針，在排除故障前，最好先檢查下送線(xiàn)鉤弧型背面有無(wú)劃傷，如果下送線(xiàn)鉤弧型背面有毛刺，那么當(dāng)下送線(xiàn)鉤向后運(yùn)動(dòng)，縫線(xiàn)就不可能順暢地滑入下送線(xiàn)鉤的前面，下送線(xiàn)鉤也就沒(méi)有勾住縫線(xiàn)，跳針也就很自然的事。 　　夾線(xiàn)器調(diào)整不當(dāng)，也會(huì)引起機(jī)針勾線(xiàn)時(shí)偶爾跳針。它的時(shí)間相位是：在第一圈下勾線(xiàn)盤(pán)勾住機(jī)針線(xiàn)環(huán)旋轉(zhuǎn)擴(kuò)大，緊線(xiàn)鉤和夾線(xiàn)器的左半邊在下勾線(xiàn)盤(pán)鉤頭前8 mm左右，開(kāi)始進(jìn)入下勾線(xiàn)盤(pán)內(nèi)。在第二圈當(dāng)回升的機(jī)針勾住縫線(xiàn)并被封針?lè)庾♂樋缀?，緊線(xiàn)鉤松線(xiàn)，夾線(xiàn)器打開(kāi)。調(diào)整方法是：旋松夾線(xiàn)器控制凸輪上的兩顆緊固螺釘進(jìn)行調(diào)整（圖8），但調(diào)整后還應(yīng)觀察下送線(xiàn)鉤的送線(xiàn)時(shí)間相位是否正確。這是因?yàn)橄滤途€(xiàn)鉤控制凸輪和夾線(xiàn)器控制凸輪是連接在一起的，如果下送線(xiàn)鉤時(shí)間相位受到影響，就應(yīng)拆下下勾線(xiàn)盤(pán)，在夾線(xiàn)器控制凸輪槽內(nèi)用扳手旋松兩顆緊固螺釘，用六方扳手帶著其中一顆螺釘在槽內(nèi)滑動(dòng)，從而改變下送線(xiàn)鉤的時(shí)間相位。 ??? 末尾線(xiàn)頭長(zhǎng) 　　理想的末尾線(xiàn)頭長(zhǎng)是10cm左右，超過(guò)就可以認(rèn)為末尾線(xiàn)頭過(guò)長(zhǎng)，造成縫線(xiàn)浪費(fèi)。線(xiàn)頭長(zhǎng)的主要原因是下送線(xiàn)鉤調(diào)整的位置不當(dāng)和下勾線(xiàn)盤(pán)沒(méi)有調(diào)到標(biāo)準(zhǔn)位置?？傊肽┪簿€(xiàn)頭短，下送線(xiàn)鉤寧高勿低，下勾線(xiàn)盤(pán)勾線(xiàn)時(shí)間寧早勿遲。 ??? 縫線(xiàn)散開(kāi)、起絲和斷線(xiàn) 　　縫線(xiàn)起絲主要是由于下送線(xiàn)指送線(xiàn)和夾線(xiàn)器松線(xiàn)的時(shí)間過(guò)早所致。調(diào)整方法是調(diào)整它們各自的控制凸輪的時(shí)間相位。標(biāo)準(zhǔn)的時(shí)間相位如圖4，機(jī)針從下死點(diǎn)回升，下送線(xiàn)指同步送線(xiàn)，封針?lè)庾C(jī)針孔后，送線(xiàn)指開(kāi)始回退，夾線(xiàn)器開(kāi)始張開(kāi)松線(xiàn)。另外還可以通過(guò)夾線(xiàn)器調(diào)節(jié)螺釘，改變縫線(xiàn)的張力大?。▓D5），下勾線(xiàn)盤(pán)鉤頭內(nèi)若卡上縫線(xiàn)或鉤頭內(nèi)小軸承運(yùn)轉(zhuǎn)不靈活等均會(huì)引起縫線(xiàn)起絲和斷線(xiàn)（圖9）。 　　挑線(xiàn)鉤的安裝調(diào)整不當(dāng)也會(huì)引起縫線(xiàn)起絲和斷線(xiàn)。挑線(xiàn)鉤的標(biāo)準(zhǔn)時(shí)間相位是：下勾線(xiàn)盤(pán)鉤頭勾住機(jī)針線(xiàn)環(huán)時(shí)，挑線(xiàn)鉤應(yīng)挑出夾線(xiàn)器中間的縫線(xiàn)（圖10），如不正確，調(diào)整它的控制凸輪即可。另外還應(yīng)注意挑線(xiàn)鉤的背面一定要光滑，否則縫線(xiàn)就不能進(jìn)入挑線(xiàn)鉤內(nèi)，夾線(xiàn)器中的縫線(xiàn)也就無(wú)法被挑出。另外，每次開(kāi)始縫紉時(shí)縫線(xiàn)的長(zhǎng)度不要超過(guò)90cm，超過(guò)了下線(xiàn)盤(pán)的容線(xiàn)量也會(huì)出現(xiàn)縫線(xiàn)起絲或斷線(xiàn)。 ??? 機(jī)針掛紗 　　首先應(yīng)檢查封針尖是否損壞或磨損，機(jī)針是否彎曲，封針位置是否正確。封針的標(biāo)準(zhǔn)位置是：當(dāng)機(jī)針在上死點(diǎn)時(shí)，封針應(yīng)封閉機(jī)針開(kāi)口，封針尖距機(jī)針孔下端0.8~1.2 mm，封針尖與機(jī)針必須貼合。另外，夾線(xiàn)器松線(xiàn)時(shí)間過(guò)遲、線(xiàn)太緊也會(huì)造成機(jī)針變形掛紗。 ??? 珠點(diǎn)調(diào)節(jié)手柄上下晃動(dòng) 　　首先應(yīng)檢查氣缸有無(wú)串氣現(xiàn)象（圖11），珠點(diǎn)正反按鈕、珠點(diǎn)調(diào)節(jié)按鈕有無(wú)接觸不良，檢查電磁閥動(dòng)作是否靈活。如氣缸串氣沒(méi)有配件，應(yīng)在氣缸橡膠圈槽內(nèi)纏上兩三圈生料帶即可。如電磁閥線(xiàn)圈壞了只要換同樣型號(hào)的線(xiàn)圈。 ??? 針碼和珠點(diǎn)故障 　　調(diào)節(jié)針碼和珠點(diǎn)大小時(shí)一定要先按下它們的調(diào)節(jié)按鈕，然后再調(diào)整，調(diào)好后再按回按鈕。如果不按按鈕直接調(diào)，不僅調(diào)不動(dòng)，還會(huì)使調(diào)節(jié)絲杠滑絲，造成針碼和珠點(diǎn)無(wú)法控制；如果調(diào)好后忘了按回按鈕，針碼會(huì)亂，無(wú)法操作。珠點(diǎn)正反面大小不一致時(shí)，應(yīng)旋松調(diào)節(jié)壓塊上的兩顆緊固螺釘反復(fù)調(diào)節(jié)（圖11）。 　　機(jī)針的停車(chē)位是靠同步器來(lái)定位的。機(jī)針的標(biāo)準(zhǔn)停車(chē)位是：在第二圈末端，機(jī)針下降至針板上面10 mm時(shí)應(yīng)停車(chē)，此時(shí)上勾線(xiàn)鉤尾部距機(jī)針約10~14 mm。因珠邊機(jī)運(yùn)轉(zhuǎn)兩圈完成一個(gè)工作循環(huán)，故調(diào)整同步器一定要認(rèn)真觀察。調(diào)整不好，要么機(jī)針停在了第一圈末端，造成無(wú)法縫紉；要么停針位過(guò)高或過(guò)低，造成穿線(xiàn)時(shí)封針打不開(kāi)或面料無(wú)法放入。同步器和主軸之間的皮帶張力要略緊。(文章錄入：服裝機(jī)械 皮革機(jī)械) 781-type aircraft maintenance 781-type aircraft maintenance - Jump-edge machine needle is often the fault, jumping needle can be divided into: The hook-hook-line-and-jump-hook did not jump on the suture needle. ???? The hook-hook-line-dancing How to determine the next hook-hook-line-dancing? ? In operation Shanggou line hook-Zhenxian Gouzhu Central, with a suture needle-drop, the next line hook-hook line, then slit the above material on the hook or cable lines, Central, this is because the next line hook-hook Gouzhu not the first machine needle on the Central Line caused by the needle jumped. Time-adjusted high degree of targeting criteria are: machine needles on the dead point in time to board plane needle tips from 16 mm. The hook-line time for the hook line: machine needles in the first lap down to the next point after death, upward rebound 1.3 mm, the hook-hook the first line should reach the concave center-pin (Figure 1), and the first hook - Needle concave gap is zero. Here want to emphasize is usually under-recovery of 1.3 mm, the hook-hook the first line should reach the centre of needles. This is because the needle-to-pin-drop when the needle was blocked in the closure of the side-board (2,3), the operator of the pinhole to the open side, the suture needle marks in the loss of protection, machine needles from the Died at a slight upward rebound of the suture needle marks Rally very easily lose a Central Line, if the hook-hook-line time slightly late in the Application List system on line before the suture needle marks, easily emerge from the plane or the Central Line Big jump-twisted cause. May also be under-hook-hook line slightly ahead of time. ???? ???? Machine hook-line-dancing Machine hook-line-dancing performance: sewing fabric in the front of a needle or a few needles without trace, or a few stitches after the machine-needle can not take on the suture. The failure to exclude, first of all machines should send the next line agencies understand, understand its working principles, time phase. Machine needle in the first lap of death, when the rebound of 1.3 mm topical hook-hook-head Gouzhu Zhenxian Central, and will continue to expand the revolving line Central (4,5), followed by sutures will be sent into the line that → within the tight line hook in the line-in → folder. At the same time, the next line hook sent to the end of the previous trip, backward (the operator) Cazhe suture campaign to end after the trip, and then to suture Gouzhao campaign to stop before the trip ends. The second round of the machine without suture needle drop to the next point after the death began to rise, this time sending the suture line that pushed simultaneously around the left front of a machine needle movement, the delivery of that plane and meet at the needle The distance is 0.1 mm (Figure 4), rose to the closure of needle-shut-pinhole, sent under the line that started the Back, tight line hook-line, the line to open folder. ?????? To ensure a smooth machine-stitching on the hook, then the next should be sent to each suture line hook, line refers to the next delivery, in-line folder, within the tight line hook. The important thing is to be sent each time the line hook Gouzhu suture, which requires them to be a good time for adjustment phase. Adjustment of the best observed using acupuncture board (the board the right-Modiao part), in order to observe the hook-line hook line, sending the hook-hook line and line delivery, the delivery of that line in delivery. The sending-line hook in the machine before the trip at the end of the standard position: the delivery line hook-and-distance is 2.5 mm. The delivery of the left hook in the standard position: under Gougou sent to the first line beyond the left-pin 0.3 mm. Rotary Matsushita sent on a fixed line hook screw adjusted (6). The line hook sent to the high-plate distance below 0.3 mm (Figure 7), Rotary Matsushita sent line hook fastening screws to regulate. Why should distance needle plate so close, mainly because of higher delivery line hook, line hook sent under the easier it is Cazhuo suture backward movement, will be able to return Gouzhu sutures. Machine-jump-hook line, the vast majority are due to the delivery line hook Gouzhu not caused by the sutures. The line hook sent to the back of the arc Cazhao suture backward movement, and then hook on the end of suture sent forward itinerary This is especially important. We must pay attention to the fact that, in the process of sewing Duanzhen, troubleshooting, best to check under the Arc hook sent to the back line there scratches, if sent to the back of a curved line hook Burr, then the present Hook sent back line movement, it is impossible to suture smoothly down the line hook sent under the front of the line hook will not send Gouzhu sutures, jump-it is very natural. ?? Folder line-adjusted properly, will lead to needle-line when the occasional jump hook needle. It is time to phase: the first lap under hook-line-Gouzhu Zhenxian Central rotating expand, tight line hook and line for folder on the left half of the next line hook-hook before the first around 8 mm, under the Application List system has begun to enter the line - . When the rebound in the second round of machine-Gouzhu suture needle was sealed shut after the pinhole, tight line hook-line, the line to open folder. Adjustment method is: Screw-line control cam folder on the two fastening screw adjustment (8), but should also be adjusted under the observation of the delivery line hook-time delivery phase is correct. This is because under the delivery line hook control cam and cam folder of control is linked to, if the delivery time line hook phase be affected, should be removed under the hook-line, the Line of Control in the folder Cam bed with wrench Screw-two fastening screws, which used the six-party wrench with a screw in the sliding bed, to change the delivery time line hook phase. ? ???? At the end of a long Xiantou At the end of a long Xiantou ideal is about 10 cm, more than at the end of Xiantou on it that is too long, resulting in a waste of stitches. Xiantou long is the main reason for the adjustment of the delivery line hook improperly positioned under hook line and not transferred to the standard set position. In short to end Xiantou short, hook-line delivery of high not low, the hook-line hook-line time not later than early. ???? Suture spread, and disconnected from the wire Silk sutures from the mainly due to the delivery of that line and sent folder line with the time-lines caused by premature. Adjustment method is to adjust their respective control cam time phase. Standard time phase in Figure 4, needle-point rise from the dead, sent under the simultaneous delivery of that line, closed-shut-pinhole, sent back to the beginning of that withdrawal, the folder open-line start-line. It also can adjust screw-line folder and change the size of the tension suture (5), the hook-line hook in the first stitches on the card if the head of the small hook or bearing operation does not lead to flexibility, all from the silk sutures And disconnected (9). ? Pick the hook line will lead to improper installation of adjustment from the silk sutures and disconnected. Pick-hook phase is the standard time: The hook-line hook for the first Gouzhu Zhenxian Central, the pick-hook line folder should be singled out for the middle of the stitches (10), if not correct, adjust its control cam that is, Can be. It should also pay attention to the back of the pick-hook must be smooth, it will not be able to enter the pick suture line hook, line-folder in the suture it can not be singled out. In addition, each started sewing thread when the length of no more than 90 cm, set off the assembly line more than the capacity of line will also appear from the silk sutures or disconnected. ? ???? Machine-linked yarn Should first check whether the closure needle damage or wear, whether bending machine needle, needle closure position is correct. The closure-standard position: When the machine needle in the dead spots, the closure of acupuncture needles should be closed openings, the closure of the needle marks from the bottom of 0.8 ~ 1.2 mm, with the closure of acupuncture needle to a paste. In addition, the folder line for late-line time, the lines too tight will cause deformation of needle pegged yarn. ???? - Point adjustment handle shaking from top to bottom Should first check whether string gas in the cylinder (11), the positive and negative points-button, the button-point adjustment whether connection is bad, check whether the electromagnetic valve action flexible. If no gas cylinder string parts, rubber ring in the cylinder tank Chanshang February 3 laps to bring raw material. Such as electromagnetic coil valve bad for the same model as long as the coil. ? ???? Code-and-points of failure Regulation needle-point code and the size must first press the button on their conditioning and then adjusted, for good and then click the back button. If the button is not directly transferred, not only for fixed, but also to adjust screw slippery silk, and a pin-point code can not control if good-by to forget after button, pin code will be chaotic, can not operate. - Point size is not negative, they should spin-conditioning Press tighten screws on the two repeatedly regulation (11). Machine-parking spaces is to rely on sync with the positioning. Machine-standard parking spaces is: the end of the second lap, machine needles dropped to 10 mm above-board should be stopping, at this time Shanggou line hook from the tail-plane about 10 ~ 14 mm. By-side machines running two laps completed a work cycle, the adjustment synchronizer must seriously observe. Adjusted well, either machine needle stopped at the end of the first lap, causing no sewing; either stop-bit too high or too low, causing threading needles trying to open or closed when not Add to fabrics. And spindle synchronization between the belt tension Chamber tight. (The article entry: Leather Garment Machinery Machinery)