JPH11106070A - Paper feeding method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform smooth work by sucking paper sheets one by one from the uppermost of a stack of paper and preventing trouble from being generated in association with deformation of sheet in its section shape when sheet is fed to the gap between a feed roller and paper holding roller through a plurality of blades furnished ahead in parallel arrangement. SOLUTION: Paper sheets 2 are sucked one by one from the uppermost of a stack 1 of paper and fed to the gap between a feed roller 5 and paper holding-down roller 6 through a plurality of blades 4 furnished ahead in parallel arrangement, and at this time, air is jetted from between the blades 4 to blow up the leading edges of the sheets 2, and an upper guide plate 8 is installed to suppress turbulence of the sheets 2 caused by excessive blowing-up.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is directed to a method of manufacturing a paper sheet, which comprises the steps of: sucking a sheet sequentially from the top of a sheet pile and feeding the sheet between a delivery roller and a paper pressing roller; TECHNICAL FIELD The present invention relates to a method for preventing the device from being folded or deformed, and an apparatus used therefor.

[0002]

2. Description of the Related Art Generally, when paper sheets are taken out one by one from a paper pile and supplied to a delivery roller, a separation section provided with a separating means is provided with one of the uppermost separated sheets.
After sucking a sheet of paper with the first suction device and lifting it up,
At the same time, air is blown underneath to completely separate and float, and at the same time, the paper sheet is delivered to the second suction device and sent out forward, and is supplied between a pair of delivery rollers and the paper holding roller. Will be

FIG. 3 is a side view showing this conventional method. In FIG. 3A, the paper pile 1 is positioned by an upright blade 4. Next, the top sheet 2
However, when the sheet is sucked up by the second suction device 3 and moves forward, as shown in FIG. 3 (b), the blade plate 4 falls forward slightly before the movement of the sheet, and sends out the leading end of the sheet. 5
And is supplied between the delivery roller 5 and the paper pressing roller 6.

[0004] However, the paper sheets handled by the paper feeder do not always have a horizontal cross-section, and may be curved or wavy.
In such a case, the introduction to the delivery roller may not be performed smoothly. In particular, if the tip of the paper sheet is curled downward, the paper sheet may be broken or deformed when it comes into contact with the slats, impeding normal operation. Since it had to be removed from the device and manually corrected, the work efficiency was inevitably reduced.

[0005]

SUMMARY OF THE INVENTION In the present invention, a sheet is sucked one sheet at a time from the top of a sheet pile, and is sent out through a plurality of blades provided in parallel in front of the sheet. This is intended to prevent troubles caused by the deformation of the cross-sectional shape of the paper sheet and to smoothly carry out the work during the supply.

[0006]

SUMMARY OF THE INVENTION The present inventors have found that paper sheets are sucked and conveyed one by one from the top of a paper pile, and when paper is supplied between a delivery roller and a paper holding roller, the paper sheet is fed. Troubles such as entanglement and bending caused by an abnormal cross section of the leaf are caused by the fact that the leading end of each paper sheet is curled downward and is not smoothly guided between the rollers. It has been found that such a trouble can be suppressed if the curl is prevented, and the present invention has been made based on this finding.

In other words, the present invention provides one
At the time of sucking the sheets one by one and feeding them between the feed roller and the paper holding roller through a plurality of blades provided in parallel in front, air is blown out from between the blades to cause the front end of the paper leaf A sheet feeding method characterized in that a paper sheet is blown up and an upper guide plate is provided to suppress disturbance of the sheet due to excessive blowing, and a pair of a delivery roller and a paper holding roller; And a feeding means for sucking the sheets one by one from between the roller pairs, a feeding means comprising a plurality of rows of blade plates for positioning the paper pile and supporting and guiding the lower surface of the sheet during the feeding. In the paper apparatus, a plurality of air ejection nozzles for pushing up the front end of the paper sheet upward and an upper guide plate for suppressing excessive pushing up are provided between the respective blades of the row of blades. Providing paper equipment

[0008]

Next, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view for explaining the method of the present invention. As shown in FIG.
When the paper sheet 2 whose tip is curled from above is sucked up by the attachment device 3 and moves forward, as shown in FIG. 1 (b), the blade plate 4 falls forward and guides the paper sheet 2 and simultaneously ejects air. Air is blown out from the nozzle 7 to push up the leading end of the sheet curled downward, contact the upper guide plate 8 provided opposite the air ejecting nozzle 7, and deform the leading end thereof. Is supplied between the delivery roller 5 and the paper pressing roller 6 without bending. In this example, the upper guide plate 8 is provided so as to face the air ejection nozzle, but may be provided at a different position, or may be provided in a different number in some cases.

FIG. 2 is a front view of the apparatus of the present invention, in which a plurality of blades 4,... Are provided in front of a delivery roller 5 and a paper press roller 6, and the blades 4 A plurality of air jet nozzles 7,... Are arranged in the gap between them. Also, upper guide plates 8,... Are arranged at positions facing the air jet nozzles 7,.

The transport means in the apparatus of the present invention, that is, FIG.
The operation of the attachment 3 and the operation of the slat 4 shown in FIG. 3 are interlocked, and the attachment 3 sucks up the topmost sheet 2 of the paper pile and starts to be conveyed forward. And the sheet can be guided to the surface of the delivery roller. Further, the air ejection nozzle 7 may be kept in a state where air is always blown out. However, if desired, the blade plate 4 starts to blow out at the same time as the blade plate 4 falls forward,
It is also possible to adopt a configuration in which the blade 4 is restored to the previous position and at the same time the blowing of air is stopped.

[0011]

According to the present invention, even if the paper fed between the delivery roller and the paper pressing roller is curled downward, it may be bent or entangled, causing trouble. Therefore, the sheet is smoothly guided between the rolls, so that the sheet feeding operation can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a side view for explaining a method of the present invention.

FIG. 2 is a front view of the device of the present invention.

FIG. 3 is a side view for explaining a conventional method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper pile 2 Uppermost paper leaf 3 Adsorber 4 Blade plate 5 Delivery roller 6 Paper holding roller 7 Air ejection nozzle 8 Upper guide plate

Claims (3)

[Claims] When a sheet is sucked one sheet at a time from the top of a sheet pile and fed between a feed roller and a paper pressing roller through a plurality of blades provided in parallel in front, A sheet feeding method characterized in that air is blown out from between blade plates to blow up the front end of the sheet upward, and an upper guide plate is provided to suppress disturbance of the sheet due to excessive blowing. 2. A pair of a delivery roller and a paper holding roller, a sheet sucking sheet one by one from the top of a sheet pile, a conveying means for supplying the sheet between the pair of rollers, positioning of a paper pile, and conveying. In the sheet feeding device configured of a plurality of blade plates that support and guide the lower surface of the sheet, a plurality of air ejection nozzles for pushing up the front end of the sheet between the respective blades of the blade plate, and A sheet feeding device provided with an upper guide plate for suppressing excessive pushing up. 3. The paper feeder according to claim 2, further comprising a mechanism for interlocking the operation of the blade and the timing of the ejection of the air ejection nozzle.