自動鉛筆的構造是什么

1、筆桿部分

筆(bi)桿是由塑料構造，用壓塑機壓成(cheng)，用黃白油(you)進行加工處理，是筆(bi)桿更加光(guang)亮，它分(fen)為(wei)上(shang)下部分(fen)，通過上(shang)下套金木的(de)關系，旋(xuan)轉管子達(da)到(dao)伸縮的(de)目的(de)。

該圖片由注冊用戶"橘子de殿堂"提供，版權聲明反饋

2、筆芯部分

三肩胛頭上(shang)有螺絲，中間比較大，其實用銅棒在車床上(shang)制(zhi)成(cheng)(cheng)，后(hou)端更大，作用是(shi)(shi)(shi)拽住壁(bi)板不是(shi)(shi)(shi)內部結(jie)構搖動(dong)。大小(xiao)管子與長管子是(shi)(shi)(shi)用鐵皮(pi)及銅皮(pi)分別沖(chong)(chong)(chong)成(cheng)(cheng)。小(xiao)牙齒(chi)是(shi)(shi)(shi)以(yi)鐵絲用沖(chong)(chong)(chong)床沖(chong)(chong)(chong)制(zhi)而成(cheng)(cheng)，然后(hou)再鍍(du)銅，以(yi)免生(sheng)(sheng)銹(xiu)而影(ying)響質量。彌簧(huang)是(shi)(shi)(shi)用鐵皮(pi)裁成(cheng)(cheng)條子，縫光兩邊，以(yi)搖轉方法搖成(cheng)(cheng)螺旋形彈(dan)(dan)簧(huang)，然后(hou)按需要(yao)長度裁斷，再經切角(jiao)、踏圓、沖(chong)(chong)(chong)珠(zhu)頭，最后(hou)鍍(du)鎳以(yi)防生(sheng)(sheng)銹(xiu)。彌簧(huang)管子是(shi)(shi)(shi)用生(sheng)(sheng)銅棒制(zhi)成(cheng)(cheng)，整修光潔，跣成(cheng)(cheng)凹口，以(yi)便與彈(dan)(dan)簧(huang)配合。小(xiao)華司(si)為(wei)一中間有孔小(xiao)圓片，是(shi)(shi)(shi)用生(sheng)(sheng)銅棒車成(cheng)(cheng)。鋅(xin)皮(pi)盤是(shi)(shi)(shi)用鋅(xin)皮(pi)沖(chong)(chong)(chong)制(zhi)而成(cheng)(cheng)。為(wei)鉛(qian)芯(xin)的儲藏機構。

3、另件部分

筆夾(jia)，筆夾(jia)、內圈(quan)、外圈(quan)、筆夾(jia)羅絲、頭子這些零件(jian)是(shi)自動鉛(qian)筆的常見配件(jian)，不同的配件(jian)有不同的作用，例如頭子是(shi)用生銅棒束成，能保(bao)護三肩(jian)胛送出鉛(qian)芯。

活動鉛筆的工作原理介紹

墜(zhui)芯(xin)(xin)(xin)式(shi)(shi)(shi)靠(kao)鉛(qian)芯(xin)(xin)(xin)重力(li)自動(dong)(dong)(dong)出(chu)(chu)鉛(qian)芯(xin)(xin)(xin)。旋轉(zhuan)式(shi)(shi)(shi)靠(kao)旋轉(zhuan)輸送鉛(qian)芯(xin)(xin)(xin)。脈動(dong)(dong)(dong)式(shi)(shi)(shi)（撳(qin)動(dong)(dong)(dong)式(shi)(shi)(shi)）靠(kao)撳(qin)動(dong)(dong)(dong)輸送鉛(qian)芯(xin)(xin)(xin)，結構(gou)有一(yi)次(ci)撳(qin)動(dong)(dong)(dong)式(shi)(shi)(shi)，即撳(qin)動(dong)(dong)(dong)一(yi)次(ci)出(chu)(chu)鉛(qian)芯(xin)(xin)(xin)。二(er)(er)次(ci)撳(qin)動(dong)(dong)(dong)式(shi)(shi)(shi)，第(di)一(yi)次(ci)撳(qin)動(dong)(dong)(dong)筆(bi)嘴(zui)伸出(chu)(chu)筆(bi)桿，第(di)二(er)(er)次(ci)撳(qin)動(dong)(dong)(dong)鉛(qian)芯(xin)(xin)(xin)伸出(chu)(chu)。雙卡(ka)頭(tou)撳(qin)動(dong)(dong)(dong)式(shi)(shi)(shi)，采(cai)用雙卡(ka)頭(tou)結構(gou)，縮(suo)短了卡(ka)頭(tou)和筆(bi)嘴(zui)端部距(ju)離，使活動(dong)(dong)(dong)鉛(qian)筆(bi)內最后(hou)剩下的8～15mm的一(yi)段殘留鉛(qian)芯(xin)(xin)(xin)，不用撳(qin)動(dong)(dong)(dong)可出(chu)(chu)一(yi)支整鉛(qian)芯(xin)(xin)(xin)將其頂出(chu)(chu)，即可連續書寫。自動(dong)(dong)(dong)補償(chang)(chang)式(shi)(shi)(shi)（自動(dong)(dong)(dong)出(chu)(chu)芯(xin)(xin)(xin)）無須旋轉(zhuan)或脈動(dong)(dong)(dong)裝置，可自動(dong)(dong)(dong)補償(chang)(chang)鉛(qian)芯(xin)(xin)(xin)，連續書寫。

脈動(dong)(dong)(dong)式機芯(xin)結構(gou)是(shi)活動(dong)(dong)(dong)鉛(qian)筆(bi)普遍采用(yong)的(de)基本結構(gou)形(xing)式，主要(yao)由(you)筆(bi)桿、尖套（筆(bi)尖）、固定(ding)護(hu)芯(xin)管（活動(dong)(dong)(dong)阻尼）、卡頭（開花）、鎖緊(jin)箍、彈(dan)簧(huang)(huang)等組成。當儲(chu)芯(xin)管受撳動(dong)(dong)(dong)壓(ya)(ya)力(li)(li)(li)（手指壓(ya)(ya)力(li)(li)(li)）作用(yong)時(shi)，克服彈(dan)簧(huang)(huang)的(de)彈(dan)性力(li)(li)(li)向下移(yi)動(dong)(dong)(dong)，并使(shi)卡頭爪片張(zhang)開，同(tong)時(shi)鉛(qian)芯(xin)依靠自(zi)身的(de)重力(li)(li)(li)，離開在儲(chu)芯(xin)管內(nei)的(de)原來位置(zhi)，在制動(dong)(dong)(dong)元件阻尼圈的(de)控制下沿(yan)著護(hu)芯(xin)管壁移(yi)動(dong)(dong)(dong)一(yi)定(ding)長(chang)度。撳動(dong)(dong)(dong)壓(ya)(ya)力(li)(li)(li)釋放后，彈(dan)簧(huang)(huang)恢(hui)復原位，鉛(qian)芯(xin)被(bei)鎖緊(jin)箍和卡頭自(zi)動(dong)(dong)(dong)鎖緊(jin)定(ding)位，完成一(yi)次脈動(dong)(dong)(dong)出(chu)芯(xin)過程。依此往復即可(ke)連續脈動(dong)(dong)(dong)出(chu)芯(xin)。