注塑機導油管135°彎管注射模設計
楊娟1，覃志高2，周明理3（1.百色職業學院，廣西 百色 533000； 2.柳州城市職業學院，廣西 柳州 545036； 3.北海職業學院，廣西 北海 536000）
摘要：設計了1模2腔兩板式模具用于注塑機導油管135°彎管異形接頭塑件的注射成型，模具采用4種類型的脫模機構用于成型塑件的脫模，分別為彎管、直管、內收式、推桿推出等脫模機構。彎管抽芯機構使用齒條驅動扇形齒輪，再驅動圓弧滑塊實施旋轉抽芯；直管抽芯機構使用液壓缸驅動內外壁型芯實施2次抽芯；內抽芯機構使用T形槽鎖緊塊驅動內收式抽芯；塑件最終由推桿推出。
關鍵詞：導油管；圓弧彎管；內抽芯滑塊；脫模機構；注射模
中圖分類號：TG76；TQ320.662 文獻標識碼：B
文章編號：1001-2168（2021）08-0050-04
DOI：10.16787/j.cnki.1001-2168.dmi.2021.08.012
Design of injection mould for 135°elbow of oil guide pipe used in injection moulding machine
YANG Juan1, QIN Zhi-gao2, ZHOU Ming-li3 (1.Baise Vocational College, Baise, Guangxi 533000, China; 2.Liuzhou City Vocational College, Liuzhou, Guangxi 545036, China; 3.Beihai Vocational College, Beihai, Guangxi 536000, China)
Abstract: A two plates mould with two cavities and was designed for injection moulding the 135° elbow joint of oil guide pipe used in an injection moulding machine. Four types of demoulding mechanisms were used to demould the plastic parts, which were elbow core-pulling mechanism, straight pipe core-pulling mechanism, retracting core-pulling mechanism and ejector pin ejection mechanism. The rack was used to drive the fan-shaped gear and then drive the circular slider to implement rotary core-pulling in the bending core-pulling mechanism. The oil cylinder was used to drive the inner and outer wall core to core-pulling in the straight tube core-pulling mechanism. The T-groove locking block was used to drive the inner core-pulling. Finally, the plastic part was ejected by using the ejector pin.
Key words:oil guide pipe; arc elbow; inner core-pulling slider; demoulding mechanism; injection mould