自動鉛筆的構造是什么

1、筆桿部分

筆桿是(shi)由(you)塑料構造，用(yong)壓塑機壓成(cheng)，用(yong)黃白油(you)進(jin)行加工處(chu)理，是(shi)筆桿更加光亮，它分為(wei)上(shang)(shang)下(xia)部分，通過上(shang)(shang)下(xia)套金木的(de)關系，旋轉管子達到伸縮的(de)目(mu)的(de)。

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2、筆芯部分

三肩胛頭上有(you)螺(luo)絲(si)，中(zhong)間比(bi)較大，其實用(yong)(yong)銅棒在車床(chuang)(chuang)上制(zhi)(zhi)成(cheng)(cheng)(cheng)(cheng)(cheng)，后(hou)(hou)端(duan)更大，作用(yong)(yong)是(shi)拽住壁板不是(shi)內部結構搖(yao)動。大小(xiao)管子與(yu)長(chang)管子是(shi)用(yong)(yong)鐵(tie)皮(pi)及銅皮(pi)分別沖(chong)成(cheng)(cheng)(cheng)(cheng)(cheng)。小(xiao)牙齒是(shi)以鐵(tie)絲(si)用(yong)(yong)沖(chong)床(chuang)(chuang)沖(chong)制(zhi)(zhi)而(er)成(cheng)(cheng)(cheng)(cheng)(cheng)，然后(hou)(hou)再鍍銅，以免(mian)生(sheng)銹而(er)影(ying)響(xiang)質量。彌簧(huang)(huang)是(shi)用(yong)(yong)鐵(tie)皮(pi)裁(cai)成(cheng)(cheng)(cheng)(cheng)(cheng)條(tiao)子，縫光兩(liang)邊，以搖(yao)轉方法搖(yao)成(cheng)(cheng)(cheng)(cheng)(cheng)螺(luo)旋形彈(dan)簧(huang)(huang)，然后(hou)(hou)按需要長(chang)度裁(cai)斷，再經切角、踏圓、沖(chong)珠(zhu)頭，最后(hou)(hou)鍍鎳以防生(sheng)銹。彌簧(huang)(huang)管子是(shi)用(yong)(yong)生(sheng)銅棒制(zhi)(zhi)成(cheng)(cheng)(cheng)(cheng)(cheng)，整修光潔(jie)，跣成(cheng)(cheng)(cheng)(cheng)(cheng)凹口，以便與(yu)彈(dan)簧(huang)(huang)配合。小(xiao)華司(si)為(wei)一中(zhong)間有(you)孔小(xiao)圓片，是(shi)用(yong)(yong)生(sheng)銅棒車成(cheng)(cheng)(cheng)(cheng)(cheng)。鋅皮(pi)盤是(shi)用(yong)(yong)鋅皮(pi)沖(chong)制(zhi)(zhi)而(er)成(cheng)(cheng)(cheng)(cheng)(cheng)。為(wei)鉛(qian)芯(xin)的儲藏(zang)機(ji)構。

3、另件部分

筆夾(jia)，筆夾(jia)、內圈、外圈、筆夾(jia)羅(luo)絲(si)、頭(tou)子這些零件(jian)是自動鉛筆的(de)常見配件(jian)，不同的(de)配件(jian)有不同的(de)作用(yong)(yong)，例如頭(tou)子是用(yong)(yong)生(sheng)銅棒束成，能(neng)保(bao)護三肩胛送出鉛芯(xin)。

活動鉛筆的工作原理介紹

墜(zhui)芯(xin)(xin)(xin)式(shi)靠鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)重力自動(dong)(dong)出(chu)(chu)(chu)(chu)鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)。旋(xuan)轉式(shi)靠旋(xuan)轉輸送鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)。脈(mo)動(dong)(dong)式(shi)（撳(qin)(qin)(qin)動(dong)(dong)式(shi)）靠撳(qin)(qin)(qin)動(dong)(dong)輸送鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)，結(jie)構有一(yi)次(ci)撳(qin)(qin)(qin)動(dong)(dong)式(shi)，即(ji)撳(qin)(qin)(qin)動(dong)(dong)一(yi)次(ci)出(chu)(chu)(chu)(chu)鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)。二(er)次(ci)撳(qin)(qin)(qin)動(dong)(dong)式(shi)，第一(yi)次(ci)撳(qin)(qin)(qin)動(dong)(dong)筆嘴(zui)伸(shen)出(chu)(chu)(chu)(chu)筆桿(gan)，第二(er)次(ci)撳(qin)(qin)(qin)動(dong)(dong)鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)伸(shen)出(chu)(chu)(chu)(chu)。雙(shuang)卡(ka)(ka)頭撳(qin)(qin)(qin)動(dong)(dong)式(shi)，采用雙(shuang)卡(ka)(ka)頭結(jie)構，縮短了卡(ka)(ka)頭和(he)筆嘴(zui)端部距離，使活(huo)動(dong)(dong)鉛(qian)(qian)(qian)(qian)(qian)筆內最后剩下的(de)8～15mm的(de)一(yi)段(duan)殘留鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)，不(bu)用撳(qin)(qin)(qin)動(dong)(dong)可出(chu)(chu)(chu)(chu)一(yi)支整鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)將其頂出(chu)(chu)(chu)(chu)，即(ji)可連(lian)續(xu)(xu)書寫(xie)。自動(dong)(dong)補(bu)償式(shi)（自動(dong)(dong)出(chu)(chu)(chu)(chu)芯(xin)(xin)(xin)）無須(xu)旋(xuan)轉或脈(mo)動(dong)(dong)裝置，可自動(dong)(dong)補(bu)償鉛(qian)(qian)(qian)(qian)(qian)芯(xin)(xin)(xin)，連(lian)續(xu)(xu)書寫(xie)。

脈(mo)動(dong)式機芯(xin)(xin)結(jie)(jie)構(gou)是活動(dong)鉛筆普遍采用的基本結(jie)(jie)構(gou)形(xing)式，主要由(you)筆桿、尖(jian)套（筆尖(jian)）、固定(ding)護(hu)芯(xin)(xin)管(guan)（活動(dong)阻尼(ni)）、卡(ka)(ka)頭(tou)(tou)（開花）、鎖(suo)緊箍、彈(dan)簧等組成。當儲(chu)芯(xin)(xin)管(guan)受撳(qin)動(dong)壓力（手指壓力）作用時，克服彈(dan)簧的彈(dan)性(xing)力向(xiang)下移動(dong)，并使卡(ka)(ka)頭(tou)(tou)爪片張(zhang)開，同時鉛芯(xin)(xin)依靠自身的重(zhong)力，離開在(zai)儲(chu)芯(xin)(xin)管(guan)內的原來(lai)位(wei)置，在(zai)制動(dong)元(yuan)件阻尼(ni)圈(quan)的控(kong)制下沿著(zhu)護(hu)芯(xin)(xin)管(guan)壁(bi)移動(dong)一(yi)定(ding)長度。撳(qin)動(dong)壓力釋放(fang)后，彈(dan)簧恢復原位(wei)，鉛芯(xin)(xin)被(bei)鎖(suo)緊箍和卡(ka)(ka)頭(tou)(tou)自動(dong)鎖(suo)緊定(ding)位(wei)，完成一(yi)次脈(mo)動(dong)出芯(xin)(xin)過(guo)程。依此往復即可(ke)連續脈(mo)動(dong)出芯(xin)(xin)。