JPS6226507B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] Industrial Application Field The present invention relates to a paper sheet feeding device, and the present invention relates to a paper sheet feeding device, which is capable of unifying paper sheets that are bundled by a band without breaking the band. This invention relates to a paper sheet feeding device capable of feeding sheets one by one.

Conventional technology A feeding device that feeds stacked sheets of paper one by one to a desired location was developed by Tokuko Showa.
This is conventionally known as shown in Japanese Patent No. 48-22747. Generally, such a paper sheet feeding device sequentially shifts the top layer of paper sheets stacked on a table from the stacked position by vacuum suction transfer or friction transfer, and transports the paper sheets, for example. It is configured to feed into the belt.

However, even with the configuration as described above, the following problems occurred. In other words, the paper sheets that are sent out are not necessarily all in the same form; for example, as shown in FIG.
A plurality of sheets are tightly bundled with a band P to form a laminate X.
There are also some. In order to set such a laminate X on a delivery device and send it out one by one, it is necessary to tear or pull out the band P in advance. This so-called stripping operation is generally carried out manually by an operator, and the reality is that the existence of the stripping operation hinders the efficiency of sheet processing.

Problems to be Solved by the Invention As mentioned above, in the past, operators manually unloaded paper sheets, so it was difficult to feed out paper sheets.
In other words, there was a limit to improving the efficiency of paper processing.

Therefore, the present invention has been developed to process paper sheets bundled with a band, without requiring an operator to remove the paper sheets, which is the most problematic process, and to process paper sheets one by one with the band still attached. It is an object of the present invention to provide a paper sheet feeding device that can feed paper sheets and contribute to improving processing efficiency.

[Structure of the Invention] Means for Solving the Problems The present invention provides a paper sheet stack in which one or more paper sheets are held in a stacked state, which is formed by bundling a plurality of paper sheets with a band. A paper sheet holder, which is provided opposite to the paper sheet stack held by the paper sheet holder, and moves the paper sheets located in the outermost layer one by one in a direction perpendicular to the bundling direction of the band. a feeding mechanism that feeds out intermittently; and a drive that moves the paper sheet holder toward the feeding mechanism to maintain a constant relative position between the feeding mechanism and the outermost layer of paper sheets. means, and a side surface of the paper sheet stack held by the paper sheet holder and closest to the feeding mechanism, and on both sides parallel to the feeding direction by the feeding mechanism, of the paper sheet holder. A pair of sliding contact portions are provided which make sliding contact while moving in the same direction as the moving direction of the paper sheet holder at a speed faster than the moving speed, and whose sliding contact force increases along the moving direction. and means for bending the stack of paper sheets using sliding force.

Function A laminate X in which paper sheets held on a paper sheet holder are bundled by a band P as shown in FIG.
If this is the case, the outermost layer of these laminates curved to. When curved in this way, the paper sheets located in the outermost layer are released from the restraint from the band P. Therefore, even if the paper sheet is set with the band P attached, each paper sheet can be fed out one by one without any problem.

Examples Hereinafter, details of the present invention will be explained with reference to illustrated examples.

FIG. 2 is a side view showing only the main parts of a delivery device according to an embodiment of the present invention.

In the figure, reference numeral 1 indicates a frame, and bearings 2a and 2b are fixed to this frame 1 in a vertically opposing relationship via a support member, and a rolling ball screw 3 is rotatably attached to these bearings 2a and 2b. is supported by The upper end of the rolling ball screw 3 in the figure is connected to the rotating shaft of a motor 5 via a speed reduction mechanism 4. A rolling ball nut 6 is screwed onto the rolling ball screw 3, and a paper sheet holder 8 is fixed to the rolling ball nut 6 via a connecting member 7. Therefore, when the motor 5 is driven, the rolling ball screw 3 rotates, and as the rolling ball nut 6 moves up and down with this rotation, the sheet holding table 8 is controlled to move up and down.

The paper sheet holding stand 8 is formed of a flat plate, for example, and has a stack of paper sheets Q on its upper surface.
It is installed horizontally so that multiple sheets can be placed in a stacked state. Above the paper sheet holding table 8, an off signal is sent when the topmost layer of paper sheets Q placed on the paper sheet holding table 8 comes into contact with the paper sheet holding table 8, and an on signal is sent when there is no contact. A position detector 9 formed of a limit switch or the like that sends out is provided, and the power of the motor 5 is controlled to be turned on or off by the output of this position detector 9. That is, when the position detector 9 sends an OFF signal, the power to the motor 5 is turned off, and when the position detector 9 sends an ON signal, the power to the motor 5 is turned on in the forward direction. The paper sheet holding table 8 is controlled to rise. As a result,
The paper sheet Q located at the top layer is always held at a fixed position.

On the left side of the sheet holding table 8 in the drawing, there is a vertical suction cylinder 10 formed in a flat shape so as to position the left end side of the sheet placed on the holding table 8. It is provided in The upper end of this suction cylinder 10 is located at approximately the same height as the paper sheet Q located at the top layer and is closed by a plate 11. Suction holes 12 are formed in the plate body 11, for example, in five rows and three columns. Further, the lower end of the intake cylinder 10 in the figure is connected to an intake pump (not shown).

On the other hand, above the left end of the paper sheet holding stand 8 in the figure,
A rotating drum 13 constituting a feeding mechanism is arranged so that its axis is oriented in a direction perpendicular to the plane of the paper and is driven to rotate continuously or intermittently in the direction indicated by an arrow 14 by a drive mechanism (not shown). .
As shown in FIG. 3, this rotating drum 13 is formed to have a width narrower than the width of the paper sheets Q, and its center in the width direction is at the center of the left end of the paper sheet holding table 8 in FIG. It is located directly above. Holes 15a and 15b are formed in opposing portions of the peripheral wall of the rotating drum 13, respectively.
In addition, an intake nozzle 16 is provided inside the rotating drum 13.
is provided in a stationary state with its opening facing toward the intake cylinder 10, and this intake nozzle 16 is connected to an intake pump (not shown). To the left of the rotating drum 13 in FIG. 2, a pair of upper and lower conveyor belts 17 and 18 are supported by guide rollers 19 and 20, etc., and are parallel to each other so as to circulate in the direction shown by the arrow 21 in the figure. There are two pairs of The conveyor belt 17 located on the upper side of each pair has bearings 2 having a smaller diameter than the rotating drum 13, which are provided in a protruding state on both sides of the rotating drum 13, as shown in FIG.
The V-shaped clamp opening 23 is formed diagonally below the rotary drum 13.

A support member 31 is disposed above the right end of the paper sheet holding table 8 in FIG. Members 32, 33 as shown
It is fixed to the frame 1 via. Blocks 34a and 34b are attached downwardly to both sides of the portion of the support member 31 that faces the paper sheet holding table 8, and these blocks 34a and 34
At b, shafts 35a and 35b are provided in parallel with the side surface of the sheet holding stand 8 and protrude toward the rolling ball screw 3. And each of the above-mentioned axes 35
A roller 36 whose surface is formed of a material with high frictional resistance, such as rubber, is provided on the outer periphery of the rollers a and 35b.
a and 36b are rotatably mounted. In addition,
The shortest distance between the rollers 36a and 36b is set to be shorter than the width of the sheet Q, and the shortest distance is slightly lower than the height of the uppermost sheet from which the position detector 9 sends an off signal. is set in the position. Therefore, the rollers 36a, 36b
Worm gears 37a, 37b are coaxially connected to the worm gears 37a, 37b.
are meshed with the worm wheels 38a and 38b, respectively. The worm gear 37a and the worm wheel 38a meshing therewith are each formed with a left-hand thread, and the worm gear 37b
The worm wheel 38b that meshes with the worm wheel 38b has a right-hand thread. The worm wheels 38a, 38b are fitted onto the outer periphery of a shaft 39 that is provided outwardly and upwardly from the right end in FIG. Note that the shaft 39 is connected to a member 40 screwed to the blocks 34a and 34b described above.
It is rotatably supported by a and 40b. The shaft 39 has a coupling 41 and an auxiliary shaft 42.
The rotary shaft of a motor 44 is connected to the rotating shaft of a motor 44 fixed to the support member 31 via a member 43. Note that the rotation speed of the motor 44 is set at a circumferential speed faster than the rising speed of the paper sheet holding table 8, and
36b is set to a value that can be rotated. Furthermore, the motor 44 and the motor 5 can be selectively stopped and controlled by external operation, and the motor 5 can be reverse controlled by external operation.

Next, the operation of the apparatus of the present invention configured as described above will be explained.

First, the motor 5 is controlled in reverse, and the paper sheet holding table 8 is
is lowered to the lowest position, and in this state, a plurality of stacks X of paper sheets Q bound by a band P, for example, are placed on the holding table 8 as shown in the figure. Next, the conveyor belts 17 and 18 are circulated in the direction shown by arrow 21, and the rotating drum 13 is rotated in the direction shown by arrow 14. Further, the motor 44 starts rotating, the motor 5 is switched to the forward rotation side, and the intake system is further operated.

In this state, the position detector 9 is not in contact with the paper sheets located on the top layer, so the motor 5 continuously rotates in the forward direction.
gradually increases. When the paper sheet holding table 8 rises to a certain position, the paper sheet Q located at the top layer comes into contact with the position detector 9, and the motor 5 is temporarily stopped. On the other hand, since the rotating drum 13 is rotating in the direction of the arrow 14, the hole 1 of the rotating drum 13
5a, 15b pass through the front face of the opening of the suction nozzle 16, a large suction force acts on the left end of the paper sheet Q located in the top layer, and as a result, the paper sheet Q located in the top layer is It is adsorbed on the surface of the drum 13,
As the drum 13 rotates, it moves to the left in FIG. 2 and is transferred into the V-shaped holding opening 23. Then, it is finally sandwiched between conveyor belts 17 and 18 and conveyed to a desired location. When the paper sheet Q located at the top layer is sent out in this way, the position detector 9
is turned on, and as a result, the motor 5 rotates again to raise the sheet holding table 8. Then, when the paper sheet Q located at the top layer contacts the position detector 9, the motor 5 is turned off and the paper sheet Q located at the top layer is transferred to the rotating drum 13 in the same manner as described above.
is absorbed and sent out. In this case, the suction operation of the suction hole 12 prevents so-called two-sheet feeding.

In this way, the stacked paper sheets Q are sent out one after another, but the paper sheets Q are bundled by the band P, and it is difficult to send out one sheet from the bundle. is generally very difficult. Therefore, in the apparatus of the present invention, the feeding is facilitated in the following manner. That is, when the stacked body X rises as the sheet holding table 8 rises,
Finally, the side surface of the stacked body X located at the top layer, that is, the side surface parallel to the feeding direction and parallel to the stacking direction, comes into contact with the outer surfaces of the rollers 36a and 36b. The portions of the rollers 36a and 36b that come into contact with the stacked body X are moving in the same direction as the rising direction at a speed higher than the rising speed of the sheet holding table 8, so the above-mentioned side surfaces of the stacked body X are moved by the rollers. 36a, 3
6b, it is rubbed up in such a manner that the sliding force increases along the moving direction. When subjected to this rubbing up, the laminate
Curved in a concave shape as shown in the figure. At this time, the valley line portion of the laminate X receives a force in the anti-rubbing direction opposite to the both side surface portions due to a reaction force due to the curvature. Therefore, the laminate X will not fly upwards due to rubbing by the rollers 36a and 36b. When curved as described above, the frictional resistance between the strip P and the paper sheet Q located in the uppermost layer becomes extremely small. Therefore, it becomes easy to extract the paper, and as a result, the paper can be fed out one by one. Note that the remaining band is disposed of by the operator.

In this way, both side surfaces of the laminate X that are parallel to the feeding direction and parallel to the stacking direction are rubbed up at a speed faster than the rising speed of the laminate X so that the frictional force gradually increases along the rising direction. The stacked body X is forcibly curved into a concave shape, and in this state, the paper sheets Q located at the outermost layer are sent out. Therefore, even if the paper sheets Q remain in the stacked body X bound by the strip P, the friction between the strip P and each paper sheet Q can be reduced by forming the above-mentioned curvature. It can be made extremely small, and as a result, it can be fed out one sheet at a time, eliminating the need for an operator to remove the strips, which ultimately contributes to improving the processing efficiency of paper sheets.

In the above-mentioned embodiment, a pair of rollers are used to scrape up both sides of the paper sheet, but the invention is not limited to this.
As shown in the figure, small rollers 51a, 51b are installed below the rollers 36a, 36b.
rollers 36a and 51a, respectively provided in parallel with b.
Alternatively, it may be rubbed up by belts 52a and 52b that are stretched around rollers 36b and 51b, respectively. Moreover, the above explanation is based on the band P
Although the paper sheets that have been bound are fed out one by one by the , it is of course possible to send out paper sheets that are not tied together. Further, the main body of the feeding device is not limited to the one shown in the embodiment, but may be one that feeds out by friction. The present invention can also be applied to a device in which paper sheets Q are stacked in a direction perpendicular to the direction of gravity and set on a holding table.

[Effects of the Invention] As described in detail above, according to the present invention, the paper sheet stack bundled by the band is curved by a curve forming means provided with a pair of sliding portions, thereby achieving the maximum The paper sheets located in the outer layer are released from the restraint by the band,
In this state, the paper sheets located in the outermost layer are sent out by the feeding mechanism in a direction perpendicular to the bundling direction of the band, so the paper sheets are fed out one by one with the band still attached. This makes it possible to completely eliminate the operator's unstripping work, which is the most problematic process when processing paper sheets with belts.
Therefore, it is possible to provide a paper sheet feeding device that can contribute to improving the efficiency of paper sheet processing.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one form of stacked paper sheets, FIG. 2 is a partially cutaway side view of a main part of a feeding device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line A--A in FIG. 2, and FIG. 4 is a vertical cross-sectional view of a main part of a feeding device according to another embodiment of the present invention. 1... Frame, 5... Motor, 8... Paper sheet holding stand, 9... Position detector, 13... Rotating drum, 36a, 36b... Roller, 44... Motor, 52a, 52b... Belt , Q...Paper leaves,
P...Band body, X...Laminated body.

Claims (1)

[Scope of Claims] 1. A paper sheet holder that holds one or more paper sheet stacks in a laminated state, which are formed by bundling a plurality of paper sheets with a band, and this paper sheet holder. a feeding mechanism that is provided opposite to the stack of paper sheets held by the body and intermittently feeds the outermost paper sheets one by one in a direction perpendicular to the bundling direction of the band; a driving means for moving the paper sheet holder toward the feeding mechanism side in order to maintain a constant relative position between the mechanism and the paper sheets located in the outermost layer; At a speed faster than the moving speed of the paper sheet holder, the paper sheets are placed on both side surfaces of the stack of paper sheets that are being held and are closest to the feeding mechanism and are parallel to the feeding direction by the feeding mechanism. A pair of sliding contact parts are provided that slide in contact while moving in the same direction as the moving direction of the holding body, and the sliding contact force increases along the moving direction, and the paper sheets are stacked by the sliding contact force of the pair of sliding contact parts. A paper sheet feeding device characterized by comprising means for curving its body. 2. The sliding contact portion is comprised of a pair of rollers that contact both side surfaces of the stack of paper sheets while rotating in opposite directions at the same speed. paper sheet feeding device. 3. The sliding contact portion is comprised of a pair of belts that contact both side surfaces of the stack of paper sheets while circulating in opposite directions at the same speed. paper sheet feeding device.