Pipe cap large and small head continuous die

The utility model discloses a pipe cap large and small head continuous die which comprises an upper die base and a lower die base, a discharging plate is arranged at the bottom of the upper die base, a gap is formed between the discharging plate and the upper die base, a plurality of connecting springs are arranged in the gap to form a buffer space, a concave die plate is arranged at the top of the lower die base, and the concave die plate is connected with the discharging plate. A workpiece space is formed between the discharging plate and the female die plate and provided with a pre-punching station, a hole flanging station and a stretching forming station. Continuous production stations of pre-punching, hole flanging and stretching forming are integrated in the die, workpieces can be discharged quickly, and production operation can be stably, efficiently and safely achieved. 本实用新型公开一种管帽大小头连续模具，包括上模座和下模座，所述上模座的底部设有卸料板，所述卸料板与所述上模座之间存在间隙，该间隙设有若干个连接弹簧以形成缓冲空间，所述下模座的顶部设有凹模板，所述卸料板与所述凹模板之间形成制件空间，所述制件空间设有预冲孔工位、翻孔工位