Method and device for jointing core ends

A method for end-to end joining of paper roll core sections into a continuous core master, said method comprising:

• transferring a subsequent core section to jointing machinery in order to join the subsequent core section to a previous core section, wherein the subsequent and previous core sections each have a first end and a second end and a tubular wall extending between the first and second ends, and wherein the tubular wall has a peripheral contour and a thickness;
• working a second end of the previous core section and a first end of the subsequent core section into complementary mating joint surfaces with moving tools, while the previous and subsequent core sections are stationary, by diminishing the thickness of the tubular wall at the second end of the previous core section and the first end of the subsequent core section, and, while working, controlling a working depth of material removal to follow the peripheral contour of the subsequent core section and the previous core section;
• applying glue to the joint surfaces after working the second end of the previous core section and the first end of the subsequent core section;
• and
• pushing the first and second core sections against each other in an axially abutting manner to bring the joint surfaces together after applying the glue to the joint surfaces.