High-speed automatic soft trademark cutting machine

The invention relates to a high-speed automatic soft trademark cutting machine for cutting a precise printed piece in a high speed. The high-speed automatic soft trademark cutting machine is characterized by comprising an upper knife assembly, a bed knife assembly and a trash cleaning device, wherein the upper knife assembly is provided with two upper knives, an outer upper knife is not axially fixed, and the position of the outer upper knife is regulated by a tension spring on the outer side of the upper knife assembly; the bed knife assembly is provided with two bed knives corresponding to the two upper knives; a trash cleaning hole of the trash cleaning device faces a position between the bed knife assembly and the upper knife assembly and is used for absorbing cutting trashes. According to the high-speed automatic soft trademark cutting machine, a traditional cutting concept is broken through, and the contradiction between over-high requirements on the cutting precision and the cut whitened sides which are arranged on the same side in a cutting process of the high-speed automatic soft trademark cutting machine is changed by utilizing a double-knife cutting structure; furthermore, the two knives are arranged accordantly and can be compositely mounted and singly exchanged; a structure in which coordination faces of the tension spring and a cover plate are cooperated is smartly utilized on the arrangement of the outer upper knife, so that an axial free motion space is formed on the outer upper knife, and the production speed and efficiency and the product quality are substantially improved.