Twenty-four format folding switching device for a three-drum roll-folding machine

Abstract

The invention discloses a quarterfold folding switching device of a three-roller type rolling folding machine, which comprises a paper cutting cylinder, a needle stamping cylinder, a jaw cylinder, a thirty-two opening cylinder, a first adjusting gear and a second adjusting gear. Two adjustment gears. Both the first adjusting gear and the second adjusting gear are composed of a fixed gear and a movable gear with a clutch mechanism; the outer wall surface of the fixed gear is composed of a lower gear surface and an upper light cylindrical surface whose diameter is smaller than the gear surface; the movable gear is sleeved on On the smooth cylindrical surface of the fixed gear; on the cylinder core of the poking roller, the gripper roller and the 32-open roller, one-to-one corresponding loops-the poking needle adjustment sleeve and the poking needle adjustment plate, the gripper adjustment sleeve and the gripper adjustment Plate, 32-open adjustment sleeve and 32-open adjustment plate. The twenty-four-fold folding switching device of the present invention does not add any rollers to the original three main folding roller structures, and can switch from thirty-two-fold folding to twenty-four folding only through internal structure modification without re-threading paper. Four-fold.

Description

technical field [0001] The invention relates to a book folding machine, in particular to a twenty-four format folding switching device of a three-drum rolling folding machine. Background technique [0002] Most of the three-drum roll-folding machines are used on web offset printing machines for book editions. It mainly includes triangle plates and guide rollers for longitudinal folding, paper pulling rollers, paper cutting cylinders, folding cylinders, and sixteen-fold folding devices. After the paper tape is vertically folded by the triangular plate and the guide roller, the paper cutting roller cooperates with the first folding roller to complete the cutting and first horizontal folding of the paper tape, and then the first folding roller and the second folding roller cooperate to complete the thirty-two double-fold Joint book post. Since this folding machine is equipped with a 16-fold folding device, the paper is sent to the 16-fold folding device through the conveyor b...

AI Technical Summary

Problems solved by technology

This will not only increase the procurement cost, but also the format switching is not flexible enough

Images