JP4480230B2 - Paper insertion assist device for impeller-type aligned paper discharge device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper insertion assist device for an impeller-type aligned paper discharge apparatus that stacks and sequentially discharges papers that are sequentially fed one by one in the vertical direction.
[0002]
[Prior art]
For example, in the sheet printing / inspection process, the printed sheets are sequentially conveyed one by one at a predetermined interval, and after being inspected for printing defects during the conveyance, the sheets are sequentially sent. Are arranged in an up-and-down direction by an impeller-type aligned paper discharge device, stacked, sealed and taken out every predetermined number of sheets.
[0003]
The impeller-type aligned sheet discharge device includes a rotary impeller provided with a plurality of blades radially on a peripheral surface, and a paper transport mechanism that sequentially transports sheets one by one at regular intervals and sends them to the impeller. And a stacker for storing paper disposed below the impeller, and inserts one sheet at a time between the adjacent blades of the rotating impeller to sequentially feed the paper one by one at a predetermined interval. When the paper inserted in the sheet reaches the lower side of the impeller, it naturally falls into the stacker and is stacked one by one in order in the vertical direction.
[0004]
In such an impeller-type aligned paper discharge device, when the sheets conveyed by the sheet transport mechanism are inserted one by one between the blades of the rotating impeller, the sheets are turned up or misaligned. In order to prevent poor insertion, it is common to provide a paper insertion assisting device that assists the insertion of the paper between the blades.
[0005]
Conventionally, as this paper insertion assisting device, an air curtain type device is generally used which blows air obliquely from above toward a paper to be conveyed to prevent the paper from turning up. However, in the case of this air curtain type, if the air pressure to be blown is increased too much, the paper can be prevented from turning up, but the conveyance speed is reduced due to the sticking of the paper and the insertion timing into the impeller is not suitable. On the other hand, if the air pressure is too low, it is possible to avoid a shift in the insertion timing, but the paper is turned up due to the airflow accompanying the rotation of the impeller and the correction of the curl of the paper itself is insufficient. There was a problem. For this reason, in the case of a conventional air curtain type paper insertion auxiliary device, it is necessary to adjust the air pressure to an optimum value according to the type of paper and environmental conditions, and the air pressure is constantly monitored even during operation of the device. It was necessary and handling was troublesome.
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the above problems, and an object of the present invention is to provide a paper insertion assisting device that is easy to handle and can reliably prevent poor insertion due to the paper being rolled up.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, sheets fed sequentially one by one through the upper and lower sheet feeding guides are inserted one by one from the lateral direction between adjacent blades of a rotating impeller. , inserted has been the paper is allowed to naturally fall the paper by its own weight when it reaches the lower side of the impeller, the vane wheel aligned as stacking sequential in stacker disposed below the said impeller A paper insertion auxiliary device for a paper discharge device,
The paper insertion assisting device is adjacent to the impeller, a driving roller disposed opposite to the conveyance final roller , a tension roller, a guide belt that is driven and rotated around the driving roller and the tension roller. , it is disposed between said drive roller and said tension roller, presses the guide belt in contact with the lower paper feed guide, and a pressing roller which enables adjusting the pressing force between said lower paper feed guide position adjustment Have
The lower paper feed guide has a leading end extending to an internal position on the upper side of the impeller, a notch through which the blade of the impeller passes is formed at the leading end, and the conveyance final roller faces. A peephole is formed at the position,
The driving roller is provided in contact with Ki搬 feed end roller and a predetermined pressure before facing the peephole through the guide belts,
The pressing roller is disposed opposite to the lower sheet feed guide at a position facing the entrance between the blades closer to the impeller than the driving roller, and is positioned between the driving roller and the pressing roller. A portion is provided in contact with the lower paper feed guide at a predetermined pressure;
The tension roller is formed so that the guide belt portion located between the pressing roller and the tension roller forms an inclined portion that is inclined upward while contacting or intersecting with the rotation locus of the blade of the impeller. Located above the impeller,
Sheet carrying the lower paper feed guide above, the guide belt portion held down from above at the position between the driving roller and the pressing roller conveys the lower paper feed guide above, on the the paper The paper insertion assisting device of the impeller-type aligned paper discharge device, wherein the side is pressed by the inclined portion by the guide belt and is inserted between the blades while preventing the paper from rolling up.
[0008]
The invention of claim 2, wherein, the tension roller is freely position adjustment are those which make it possible to vary freely the angle of inclination with respect to the impeller of the inclined portion.
[0009]
The invention of claim 3, wherein, the pressing roller is freely positioning, the pressing force to the paper feed guide of the guide portion of the belt presser roller is positioned between the pressing roller and the drive roller freely Ru can be provided with a positioning plate having a positioning hole may be varied.
[0010]
In the case of the paper insertion assisting device having the above configuration, the paper can be fed between the adjacent blades of the impeller while pressing the paper from above with the guide belt portion located between the driving roller and the pressing roller. In addition, since the guide belt portion located between the pressing roller and the tension roller covers the upper side of the paper sent between the adjacent blades, the leading edge of the paper sent between the blades is located on the impeller. Even if it is turned up by a rotating airflow or the like, it can be prevented from coming out from between the blades. For this reason, it is possible to insert the conveyed sheets one by one between the adjacent blades of the impeller, and there is no occurrence of an insertion failure unlike the conventional sheet insertion auxiliary device.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment of a paper insertion assisting device according to the present invention.
FIG. 1 is a schematic perspective view schematically showing the main structure of a paper insertion assisting device according to the first embodiment, and FIG. 2 is an impeller provided with the paper insertion assisting device according to the first embodiment. FIG. 3 is a plan view thereof, FIG. 4 is a schematic sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is a schematic sectional view taken along line VV in FIG. is there.
[0012]
In the figure, 10 is an impeller, 11 is a paper transport mechanism for transporting paper P one by one to the position of the impeller 12, and 12 is a vertically aligned paper P ejected from the impeller 10 one by one. A stacker 13 for stacking and accommodating the sheets 13 is a paper insertion assisting device.
[0013]
The impeller 10 is formed by arranging a plurality of blades 15 in two rows at equal intervals on the peripheral surface of the cylindrical body portion 14, and is formed between adjacent blades 15 and 15 along the rotation direction. The paper P is fed into the gap 16 and inserted. A separation distance W (see FIG. 1) between the blades 15 arranged in two rows is set to a width sufficient to allow a guide belt 29 described later to pass therethrough. The impeller 10 is rotationally driven at a designated speed in the direction of the arrow by a drive motor (not shown).
[0014]
The paper transport mechanism 11 includes paper feed guides 18 and 19 that are vertically opposed to each other with an interval through which the paper P can pass. A plurality of roller peep holes 20 are provided at desired positions of the paper feed guides 18 and 19. The upper feed roller 21 and the lower feed roller 22 are exposed at the position of the roller peep hole 20, and the paper P is conveyed through the paper feed guides 18 and 19 toward the impeller by the pair of upper and lower feed rollers 21 and 22. It is what is done. In the case of the illustrated example, of the pair of upper and lower feed rollers 21 and 22, the lower roller 22 is a driving roller, the upper roller 21 is a driven roller, and the lower roller 22 has a pulley 23 attached to a roller shaft. It is connected to a drive motor (not shown) through and is rotationally driven at a specified feed rate.
[0015]
Of the paper feed guides 18 and 19 disposed opposite to each other in the vertical direction, the lower paper feed guide 19 has its tip portion extended to an internal position on the upper side of the impeller 10, and at the tip portion thereof. A rectangular cutout 24 is formed, and the blades 15 arranged in the two rows are configured to be able to rotate through the cutout 24.
[0016]
The paper insertion assisting device 13 includes a driving roller 26, a pressing roller 27, a tension roller 28, and an endless track (caterpillar) type guide belt 29 that is stretched between these three rollers.
[0017]
The driving roller 26 is disposed so as to face the position of the final conveyance roller 31 so that the guide belt 29 is in contact with the final conveyance roller 31 disposed in the frontmost viewing window 30 of the lower sheet feeding guide 19. The drive roller 26 is connected to a drive motor (not shown) via a pulley 25, and is driven to rotate at a predetermined speed in the direction of the arrow in the figure.
[0018]
The pressing roller 27 is disposed at a position closer to the impeller 10 than the driving roller 26 so that a guide belt portion 29 a positioned between the driving roller 26 and the pressing roller 27 is in contact with the lower sheet feeding guide 19. . The pressing roller 27 is attached to the belt guide base 35 by a position adjusting plate 32, a position adjusting screw 33, and a position adjusting hole 34 so that the vertical position of the pressing roller 27 can be adjusted, and the vertical position of the pressing roller 27 is adjusted. Thus, the pressing force of the guide belt portion 29a against the paper feed guide 19 can be freely adjusted.
[0019]
The tension roller 28 is arranged in front of the pressure roller 27 so that a guide belt portion 29b positioned between the tension roller 28 and the pressure roller 27 is inclined obliquely upward through the rotation locus of the blade 15 of the impeller 10. It is located on the side and above the impeller 10. The tension roller 28 is attached to the belt guide base 35 by a position adjusting plate 36, a position adjusting screw 37, and a position adjusting hole 38 so that the position of the tension roller 28 can be adjusted vertically and horizontally. By adjusting the position, the inclination angle of the guide belt portion 29b and the tension of the guide belt 29 can be freely adjusted.
[0020]
The inclined guide belt portion 29b is arranged so as to be in contact with the rotation locus of the blade 15 of the impeller 10 or to enter and intersect the inside, but as described above, the guide belt 29 is The belt width is such that it can pass through the gap between the two blades 15, 15 and is set so as not to collide with the rotating blades 15.
[0021]
Next, the operation of the above apparatus will be described.
When the paper P is sequentially fed between the upper and lower paper feed guides 18 and 19 at regular intervals, the paper P is conveyed toward the impeller 10 by a pair of upper and lower feed rollers 21 and 22 arranged at predetermined intervals. To go. When the paper P reaches the position of the paper insertion assisting device 13, the transported paper P is sandwiched between the guide belt portion 29a located between the driving roller 26 and the pressing roller 27 and the lower paper feed guide 19, and inside it. It is sent in.
[0022]
The paper P fed between the guide belt portion 29a and the lower paper feed guide 19 is pressed from the upper side by a predetermined pressure by the guide belt portion 29a and is sent toward the impeller 10 in this state. . For this reason, the paper P is not displaced, and the paper P is not turned up by the airflow accompanying the rotation of the impeller 10, and it is possible to cope with the correction of the curl of the paper itself.
[0023]
When the leading edge of the paper P comes out of the front side of the pressing roller 27, the leading edge of the paper P faces the entrance between the adjacent blades 15 and 15 of the impeller 10, and between the blades 15 and 15 as it is. It will be sent.
[0024]
At this time, the paper P that is fed in is gradually released from the pressing force of the guide belt portion 29a from the leading end side of the paper by coming out of the guide belt portion 29a, and in some cases, it can be turned up. However, when released from the pressing force by the guide belt portion 29a, the upper side is covered with a guide belt portion 29b inclined between the pressing roller 27 and the tension roller 28.
[0025]
For this reason, even if the leading end side of the paper P released from the pressing force by the guide belt portion 29a is turned up by the air flow accompanying the rotation of the impeller 10, the upper side thereof is inclined by the guide roller portion 29b arranged to be inclined. Since it is covered, the sheet P cannot be pulled out from between the blades 15 and 15 and is inserted deeply between the adjacent blades 15 and 15 as it is. Therefore, there is no possibility that the insertion of the sheet into the impeller fails due to the sheet P turning up or being displaced as in the conventional air curtain type sheet insertion assisting device.
[0026]
The sheet P inserted between the adjacent blades 15 and 15 as described above is conveyed downward along with the rotation of the impeller 10 and reaches the lower position of the impeller 10. 2, it is dropped by its own weight into the stacker 12 disposed below from between the blades 15 and 15, and is stacked in the stacker 12 in the state of being vertically aligned. As described above, according to the first embodiment, the sheets can be sequentially aligned and stacked in the vertical direction while reliably preventing the insertion failure of the sheet due to turning up or misalignment.
[0027]
Depending on the quality and size of the conveyed paper P, the conveyance speed, etc., it may be necessary to change the pressing force of the paper P by the guide belt portion 29a located between the drive roller 26 and the pressing roller 27. In such a case, the position adjustment screw 33 is loosened and the position adjustment plate 32 is moved up and down to adjust the vertical position of the pressing roller 27. Thereby, the pressing force against the paper P by the guide belt portion 29a can be freely adjusted.
[0028]
Similarly, it is necessary to adjust the inclination angle of the guide belt portion 29b located on the pressing roller 27 and the tension roller 28 and the tension of the guide belt 29 depending on the quality and size of the paper P to be conveyed, the conveyance speed, and the like. In such a case, the position adjusting screw 37 may be loosened and the position adjusting plate 36 may be moved up and down and left and right to adjust the vertical and horizontal positions of the tension roller 28. Thus, the inclination angle of the guide belt portion 29b and the tension of the guide belt 29 can be freely adjusted.
[0029]
FIG. 6 shows a second embodiment of the paper insertion assisting device according to the present invention.
In the paper insertion assisting device 13 according to the first embodiment described above, the blades 15 of the impeller 10 are arranged in two rows, and the guide belt 29 passes between the blades 15 and 15 arranged in the two rows. However, in the paper insertion assisting device 13 according to the second embodiment, contrary to the first embodiment, the blades 15 of the impeller 10 are arranged in one row and the guide belt 29 is arranged in two rows. The blades 15 pass between the guide belts 19 arranged in a row. Since the configuration and operation of other parts are the same as those of the first embodiment described above, detailed description and illustration thereof are omitted.
[0030]
【The invention's effect】
As described above, according to the paper insertion assisting device of the present invention, the paper is fed between the adjacent blades of the impeller while pressing the paper from above with the guide belt portion located between the driving roller and the pressing roller, The upper part of the paper fed between the adjacent blades is covered by the guide belt part located between the pressure roller and the tension roller, so that the conveyed paper is surely inserted between the blades. Thus, unlike the conventional apparatus, there is no occurrence of a defective insertion due to the paper being turned up or displaced.
[0031]
In addition, the position of the tension roller is adjustable, and the inclination angle of the guide belt portion located between the pressure roller and the tension roller with respect to the impeller can be freely changed. In addition, it is possible to adjust to an optimum inclination angle according to the conveyance speed and the like, and it is possible to apply to various types of paper.
[0032]
Furthermore, the position of the pressing roller can be adjusted, and the pressing force to the paper feed guide of the guide belt portion located between the driving roller and the pressing roller can be freely changed. The optimum pressing force can be set according to the size, the conveyance speed, and the like, and it can be applied to various types of paper.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view schematically showing the main structure of a paper insertion assisting device according to a first embodiment of the present invention.
FIG. 2 is a schematic side view of an impeller-type aligned paper discharge device provided with a paper insertion auxiliary device according to the first embodiment.
FIG. 3 is a plan view of the paper insertion assisting device according to the first embodiment.
4 is a schematic cross-sectional view taken along line IV-IV in FIG. 2;
FIG. 5 is a schematic cross-sectional view taken along line VV in FIG. 2;
FIG. 6 is a schematic perspective view schematically showing the main structure of a paper insertion assisting device according to a second embodiment of the present invention.
[Explanation of symbols]
P paper 10 impeller 11 paper transport mechanism 12 stacker 13 paper insertion assisting device 15 blade 16 inter-blade gap 18 upper paper feed guide 19 lower paper feed guide 24 notch 26 drive roller 27 pressing roller 28 tension roller 29 guide belt 29a Guide belt portion 29b positioned between the driving roller and the pressing roller 29b Guide belt portion 31 positioned between the pressing roller and the tension roller Final conveying roller 32 Position adjusting plate 33 Position adjusting screw 34 Position adjusting hole 36 Position adjusting plate 37 Position adjusting screw 38 Position adjustment hole

Claims (3)

Upper and lower paper feed guide inserted one by one from the lateral direction between adjacent vanes of the impeller rotating one by one sequentially sent the incoming sheet at predetermined intervals throughout the lower side of the insert has been the paper is the impeller the the paper when it reaches the allowed drop naturally by its own weight, a paper guide assembly of vane wheel alignment sheet discharging apparatus that stacking sequential in stacker disposed below the said impeller,
The paper insertion assisting device is adjacent to the impeller, a driving roller disposed opposite to the conveyance final roller , a tension roller, a guide belt that is driven and rotated around the driving roller and the tension roller. , it is disposed between said drive roller and said tension roller, presses the guide belt in contact with the lower paper feed guide, and a pressing roller which enables adjusting the pressing force between said lower paper feed guide position adjustment Have
The lower paper feed guide has a leading end extending to an internal position on the upper side of the impeller, a notch through which the blade of the impeller passes is formed at the leading end, and the conveyance final roller faces. A peephole is formed at the position,
The driving roller is provided in contact with Ki搬 feed end roller and a predetermined pressure before facing the peephole through the guide belts,
The pressing roller is disposed opposite to the lower sheet feed guide at a position facing the entrance between the blades closer to the impeller than the driving roller, and is positioned between the driving roller and the pressing roller. A portion is provided in contact with the lower paper feed guide at a predetermined pressure;
The tension roller is formed so that the guide belt portion located between the pressing roller and the tension roller forms an inclined portion that is inclined upward while contacting or intersecting with the rotation locus of the blade of the impeller. Located above the impeller,
Sheet carrying the lower paper feed guide above, the guide belt portion held down from above at the position between the driving roller and the pressing roller conveys the lower paper feed guide above, on the the paper A paper insertion assisting device for an impeller-type aligned paper discharge device, wherein the side is pressed by the inclined portion by the guide belt and is inserted between the blades while preventing the paper from curling up.   2. The sheet insertion of the impeller-type aligned sheet discharge device according to claim 1, wherein the tension roller is adjustable in position so that an inclination angle of the inclined portion with respect to the impeller can be freely changed. Auxiliary device.   The pressing roller is positionally adjustable, and the pressing roller has a position adjusting hole that can freely change the pressing force to the paper feed guide of the guide belt portion located between the driving roller and the pressing roller. 2. A paper insertion assisting device for an impeller-type aligned paper discharge device according to claim 1, further comprising a position adjusting plate.

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