Creasing, perforating and folding device

Abstract

The present invention provides a device (1) for creasing, perforating and / or folding paper or other similar media to suit envelopes of various sizes. The device (1) includes a selectable creasing (15) or perforating head (20) which cooperates with an anvil (35), a Top Of Form sensor (46), a jam roller (59), associated pinch rollers (49, 63, 66) and a firmware for entering the paper size and type of paper for folding. After a predetermined paper length is fed into the paper path, the creasing (15) or perforating head (20) traverses a width of the paper to form a crease and after a predetermined length of paper passes the Top Of Form sensor (46), the jam / pinch rollers (59 / 49, 63, 66) are programmed to reverse in direction to cause the paper to buckle at the crease to form a fold. The types of folding operable by the device (1) are: letter, z, engineering, gate or half-fold.

Description

FIELD OF THE INVENTION [0001]The present invention generally relates to a machine for creasing, perforating and folding paper or other similar media to suit envelopes of various sizes.BACKGROUND OF THE INVENTION [0002]In a conventional creasing or perforating machine, a crease is obtained by compressing the entire length of a paper in between an anvil and a press plate or by compressing the paper in between two rotating rollers, with one roller having a groove and the other roller having a cooperating protrusion profile. On the other hand, perforation is obtained by passing the paper in between two rotating rollers, with one roller having a groove and the other roller having a cutting wheel or by rolling the perforating wheel or other mechanical cutter onto an anvil. Normally, the conventional creasing and perforating machines are not equipped with both features of creasing and perforating in a single machine, or if they are, interchanging of the creasing and perforating head unit w...

AI Technical Summary

Benefits of technology

"The present invention is a device for creasing, perforating, and folding paper or other similar media to suit envelopes of various sizes. The device includes a top of form sensor, a selectable creasing or perforating head, a jam roller, and a firmware for entering the paper size and type of paper folding. The device can create a z-fold or letter-fold, depending on the user's preference. The technical effects of the invention include efficient and precise folding of paper, improved quality and consistency, and reduced labor costs."

Problems solved by technology

Normally, the conventional creasing and perforating machines are not equipped with both features of creasing and perforating in a single machine, or if they are, interchanging of the creasing and perforating head unit will often involve manual work.

Conventional folding machines that allow multiple types of folding, are complicated in design and they require large footprints.

Most of the folding machines are limited to fold paper or the like in one specific paper size.

Hard stops are commonly used for buckling the paper, which inevitably resulted in large footprints.

When the folding machine is reduced to a portable size, typically it can only achieve one type of folding, mostly letter fold.

The design of the folding apparatus can only be used to achieve one type of folding, which is letter-fold in this case.

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