Paper feeding device and paper feeding method

Abstract

Provided are a paper feeding device that can stably feed one sheet of paper at a time to a paper feeding unit hopper of a printer or die cutting device. A paper feeding device (1) comprising a paper feeding tray (10) on which a plurality of sheets (60) are stacked in the vertical direction, a sheet feeding means (20) that sends, in the horizontal direction, the sheet (60) that is located at the top of the plurality of sheets (60) stacked on the paper feeding tray (10), and a pair of feeding rollers (30) that deliver the sheet (60) by grasping the leading edge of the sheet (60) that is sent by the sheet feeding means (20), wherein the feeding rollers (30) are variable speed rollers for which the circumferential speed can be increased and decreased while sending one sheet (60) from the leading edge to the trailing edge.

Description

technical field [0001] The present invention relates to a paper feeding device and a paper feeding method, and more specifically relates to a device and a method for feeding paper such as corrugated paper or cardboard to a paper feeding part of a printing machine or a punching machine. Background technique [0002] One type of printing machine or punching machine has a hopper for temporarily holding paper in a paper feeding section for printing or punching paper. When the printing press or punching machine is running, it is necessary to continuously feed the paper into the silo one by one, or intermittently feed multiple sheets (usually about 20 sheets) of paper into the silo, so that the The silo keeps paper at all times. [0003] Figure 5A ~ Figure 5D An example of a conventional paper feeding device that feeds paper into the magazine of the paper feeding section of such a printing machine or punching machine is shown in . like Figure 5A In the schematic front view sh...

AI Technical Summary

Problems solved by technology

At this time, if Figure 9A and Figure 9B The structure near the magazine 201 of the paper feeding part 200 shown in ( Figure 9A for its main view, Figure 9B When the paper 60 is dropped from the conveyor 140 to the bin 201, sometimes the paper 61, 62 is stuck by the side rails 202 of the bin 201 and cannot fall into the bin 201, and if If the paper 60 is tilted, it will become unstable due to the overlapping of the paper 60 on the conveyor 140, so that the posture of the paper 60 when it falls into the magazine 201 deviates from the normal posture, because this will also cause the paper 61 , 62 fell into the silo 201 in an irregular posture

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