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注射(she)器針筒(tong)模具,包括固(gu)定(ding)(ding)側(ce)(ce)(ce)(ce)取(qu)付(fu)板、可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)取(qu)付(fu)板、定(ding)(ding)位環(huan)和澆(jiao)口套(tao),其特征在于在固(gu)定(ding)(ding)側(ce)(ce)(ce)(ce)型(xing)腔(qiang)板上(shang)設有(you)循環(huan)的(de)冷卻水(shui)道,在固(gu)定(ding)(ding)側(ce)(ce)(ce)(ce)型(xing)腔(qiang)板上(shang)用(yong)可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)開(kai)(kai)模拉(la)(la)桿(gan)螺栓螺紋連(lian)接有(you)可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)開(kai)(kai)模拉(la)(la)桿(gan),可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)開(kai)(kai)模拉(la)(la)桿(gan)活動(dong)(dong)(dong)地裝在可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)推板的(de)孔中(zhong),在可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)取(qu)付(fu)板上(shang)用(yong)可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)限(xian)位拉(la)(la)桿(gan)螺栓螺紋連(lian)接有(you)可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)限(xian)位拉(la)(la)桿(gan),可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)限(xian)位拉(la)(la)桿(gan)活動(dong)(dong)(dong)地穿在可(ke)(ke)動(dong)(dong)(dong)側(ce)(ce)(ce)(ce)推板的(de)孔中(zhong)。該實用(yong)新(xin)型(xing)生產注射(she)器針筒(tong),模具結構(gou)簡單,循環(huan)的(de)水(shui)冷卻均(jun)衡(heng),成(cheng)型(xing)周期短,生產效率高。
一次(ci)性(xing)注射器的(de)(de)針(zhen)筒結構,包括一中空(kong)筒體,該(gai)中空(kong)筒體近尾端內壁(bi)上設有與(yu)推(tui)桿上限位臺階配合的(de)(de)環(huan)形凹槽(cao),其特征在(zai)于(yu):所述環(huan)形凹槽(cao)由前(qian)、后(hou)凸環(huan)構成槽(cao)壁(bi),其中后(hou)凸環(huan)高(gao)度大于(yu)前(qian)凸環(huan)0.25mm~0.35mm。本產品通過(guo)前(qian)、后(hou)凸環(huan)的(de)(de)高(gao)度差,使推(tui)桿在(zai)使用(yong)過(guo)后(hou)在(zai)不破壞中空(kong)筒體的(de)(de)情況不易(yi)被(bei)拉出,保證了注射器“一次(ci)性(xing)”的(de)(de)使用(yong)安全性(xing),有利于(yu)杜絕交(jiao)叉感染。