本发明提供了一种热塑性自冲裁热压模具，包括上模和下模，所述上模内设置上模腔，所述下模内设置下模腔，所述上模和所述下模对接形成模腔，所述上模和所述下模的侧壁内设置温度调节机构，所述下模腔的内部设有与所述下模腔侧壁贴合的切刀。该热塑性自冲裁热压模具可以利用热塑性连续纤维预浸料制造汽车横梁，提高汽车横梁的生产效率。同时本发明还提供了该热塑性自冲裁热压模具的使用方法，该方法简单易操作，适于工业应用。

The invention provides a thermoplastic self blanking hot pressing die, which comprises an upper die and a lower die. An upper die cavity is arranged in the upper die, a lower die cavity is arranged in the lower die, the upper die and the lower die are butted to form a die cavity, a temperature regulating mechanism is arranged in the side walls of the upper die and the lower die, and a cutter fitting with the side wall of the lower die cavity is arranged inside the lower die cavity. The thermoplastic self blanking hot pressing die can use thermoplastic continuous fiber prepreg to manufacture automobile cross beam and improve the production efficiency of automobile cross beam. At the same time, the invention also provides an application method of the thermoplastic self blanking hot pressing die, which is simple and easy to operate and suitable for industrial application.