Combined letter-punching die

The utility model discloses a combined letter-punching die which comprises a spring baffle and a joint punch die sleeve. The protruding part of the spring baffle is provided with a counter bore. A spring is placed in the counter bore. A square groove penetrating through the joint punch die sleeve is used for containing a row of letter joint punches. The joint punch die sleeve is provided with abutting bolts used for fixing the joint punches in the square groove. The spring baffle and the joint punch die sleeve are connected with each other through fixing bolts. The protruding part of the spring baffle is provided with the counter bore used for containing the spring, the square groove penetrating through the joint punch die sleeve is used for containing the letter joint punches, the upper part and the lower part are stably connected through the fixing bolts, and therefore powerful support is provided for the joint punches; when the joint punches need to be replaced, the joint punches will be bounced out automatically under the elastic force of the spring at the lower end of the spring baffle just by loosening the abutting bolts at the corresponding positions of the joint punch die sleeve, and therefore the working efficiency is improved.