Rotation page folding device with variable cutting specification and folding method

Abstract

The invention discloses a rotation page folding device with variable cutting specification is variable. The rotation page folding device comprises a triangular plate, a pair of first paper drawing rollers, a pair of drilling rollers, a pair of second paper drawing rollers, a pair of third paper drawing rollers, a pair of cutting rollers, a conveyer belt, a needle thrusting roller and a folding roller which are sequentially arranged along the path of a paper tape, wherein the first paper drawing rollers, the second paper drawing rollers and the third paper drawing rollers are driven by a paperdrawing roller motor; the drilling roller and the cutting roller are driven by the paper drawing roller motor; and the needle thrusting roller and the folding roller are driven by a main motor. The invention also discloses a rotation page folding method with variable cutting specification. Through the adoption of the rotation page folding method disclosed by the invention, the cutting specification of page folding can be flexibly changed according to the printing specification, so that a requirement that the printing specifications of flexo publications are variable is met; folding of variousspecifications can be realized by a folding machine, so that cutting and folding of paper of which the printing length is within 546mm-625mm can be adapted; compared with a conventional publication folding device, the rotation page folding device is economical and practical; and compared with a single-paper cutting machine, the speed of the rotation page folding device is notably increased.

Description

technical field [0001] The invention relates to a rotary folding device and a folding method with variable cutting specifications. Background technique [0002] At present, the paper printing specifications of newspaper and book rotary printing machines are fixed, and the cutting specifications of the matching folding machines are also the same. In the past, the cutting specifications of domestic books and newspapers were mostly 546mm and 625mm, but now there are more and more printed materials of various specifications on the market. If printing manufacturers want to print products of other specifications, they need to purchase printing machines with special specifications. For manufacturers, not only does it take up more space, but it also costs a lot of money. [0003] figure 1 It is the folding and cutting device of the current book folding machine. Taking the cutting of 625 mm as an example, the paper tape 10 is passed from the printing part to the folding part, and ...

AI Technical Summary

Problems solved by technology

The linear speed of the outer surface of the first pair of pulling rollers 21 and the second pair of pulling rollers 22, the punching position of the transverse puncher 30 and the cutting position of the cutter 40 are all consistent with the printing specifications and cannot be changed.

This folding cutting method can only correspond to one cutting specification. If you want to cut 546 mm or other sizes, you must replace the entire folding machine

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