JPH08337348A - Medium stacking device - Google Patents

Abstract

PURPOSE: To establish high speed stacking by putting the internal space of a medium stacking part in a negative pressure by an evacuating process, and eliminating unstable pneumatic resistance which the medium falling encounters. CONSTITUTION: A banknote take-in mechanism 14 has an upper and a lower take-in roller 14a, 14b installed opposingly to a banknote take-in hole 13 and takes in banknotes A led thereto one by one. A blower fan 16 sends a wind from over a stacking case 12 down to the internal space 19 so that pressurization takes place. Suction fans 18, 18 on both sides suck air from and decompress the internal space 19 from the side of the case 12. Therefore, the top surface of a banknote A taken in approx. in the horizontal attitude to the over-part of the case 12 is pressurized by the wind downward and depressed forcedly, while the bottom surface is sucked and decompressed so that the banknote sinks quickly. This removes the pneumatic resistance at falling, eliminates electrostatic influence in the case as well as limitation to the falling time, and certainly quickens the fall and stack of banknotes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium stacking device that is internally configured in an automatic transaction machine, and more particularly to a medium stacking device that stably stacks and processes media such as banknotes one by one.

[0002]

2. Description of the Related Art A banknote stacking apparatus will be described below as an example. As shown in FIG.
A banknote stacking unit 92 for stacking and stacking one by one,
A banknote take-in mechanism 93 is arranged above the banknote stacking unit 92, and the banknotes 91 guided to the upper banknote take-up mechanism 93 at the time of stacking are forcibly knocked off one by one by an impeller 94 to stack the banknotes below. Collected in the section 92. The scraping action of the impeller 94 promotes stable accumulation. For example, static electricity bills 91 are prevented from being electrostatically attracted to the ceiling, and the rear end of a bill is reliably scraped to avoid collision with the next bill.

However, when the bills that are light and are flatly dropped and accumulated, the dropping space becomes an air cushion 95 and a certain drop resistance is generated during the dropping process in the bill stacking unit 92, so that the bills receive the drop resistance. The banknotes 91 have an unstable falling posture in the internal space of the banknote stacking unit 92, or gently drop while changing unstablely. Therefore, there has been a limit to speeding up the banknote processing. Further, when bills of different sizes are mixed and stacked, the contact degree of the impeller differs depending on the size, and as a result, an unstable stacking operation is induced to increase noise and shorten the life of the impeller. Had a problem.

[0004]

Therefore, the present invention enables high-speed integration by generating an air flow in the internal space of the medium accumulating section and eliminating the air resistance when the medium is unstablely dropped. It is an object of the present invention to provide a medium integration device.

[0005]

According to the first aspect of the present invention,
A medium stacking device for stacking media one by one and stacking them in a medium stacking unit, characterized by including suction means for sucking the internal space of the medium stacking unit to create a negative pressure.

The invention according to claim 2 is characterized by comprising suction means for sucking the lower surface side of the medium taken in and accumulated in the medium accumulating portion.

The third aspect of the present invention is characterized by comprising positive pressure means for applying positive pressure to the internal space of the medium accumulating section to make a positive pressure.

[0008]

According to the present invention, prior to the accumulation of the medium, the medium is accumulated while the suction means sucks the internal space of the medium accumulating portion to a negative pressure.

Further, at the time of stacking the media, the lower surface side of the media taken in and stacked in the media stacking section is sucked by the suction means to forcibly drop and stack the media one by one.

On the other hand, when the mediums accumulated in the medium accumulating portion are delivered one by one, the internal space of the medium accumulating portion is fed under pressure by positive pressure means to a positive pressure.

[0011]

As a result, at the time of dropping and accumulating the medium, the internal space of the medium accumulating portion can be made a negative pressure to remove air resistance at the time of dropping, so that the dropping and accumulating of the medium can be accelerated.
In particular, since it is possible to generate a pressure difference and generate an air flow in the internal space, it is possible to easily adjust the falling speed and the falling attitude of the medium, and to stably accumulate the medium in the medium accumulating unit at high speed. .

Further, when the lower surface side of the medium taken into the medium accumulating portion during the fall accumulation is sucked, the medium in the middle of the fall is sucked in the lower accumulation direction and is sucked down. The medium is free of the unstable free state and is quickly collected on the lower collecting surface. Therefore, even when media of different sizes are mixed and accumulated, since a suction force is uniformly applied to each medium at the time of dropping and accumulating, stable and stable accumulating performance can be obtained. In addition, since the non-contact integration assist structure using a fluid utilizing the flow of air does not require consumable parts such as an impeller, the life and cost can be reduced.

Further, when the medium is delivered from the medium accumulating section, the internal space of the medium accumulating section is pressurized and blown prior to the delivery, and the internal space is made a positive pressure suitable for the delivering and the medium is delivered. Since it can be accelerated, the feeding operation of the medium is stabilized.

[0014]

Embodiments of the present invention will be described in detail below with reference to the drawings. [First Embodiment] FIG. 1 shows a banknote stacking device 11 internally configured in a banknote processing device of an automatic transaction machine. The banknote stacking device 11 is a stacking case for stacking and stacking banknotes A ... 12 and a bill taking-in mechanism 14 opposed to a bill taking-in opening 13 opened at one side of the upper part of the stacking case 12.
And a blower fan 16 connected to the center of the upper part of the stacking case 12 via a blower duct 15, and suction fans 18 and 18 connected to the left and right sides of the stacking case 12 via suction ducts 17 and 17, respectively.

The bill taking-in mechanism 14 has a bill taking-in port 13
A pair of upper and lower take-in rollers 14a, 14
b is provided, and the bills A introduced here are taken in one by one.

The blower fan 16 is connected to the blower motor M1 to rotate and blows air downward from above the stacking case 12 toward the internal space 19 below the stacking case 12. Further, the suction fans 18, 18 on both sides are connected to the suction motors M2, M2.
The internal space 19 is sucked and decompressed from the side of the stacking case 12.

Thus, the internal space 1 of the integrated case 12
Since the blower fan 16 blows and pressurizes 9 from above and the suction fans 18 and 18 suck and depressurize the bills A, the upper surface of the banknote A taken in in a substantially horizontal state above the stacking case 12 is blown and pressed downward. It is forcibly pushed down, the lower surface is sucked and decompressed, and it quickly descends.

Normally, the air blowing and suction to the internal space 19 are output prior to the stacking process of the banknotes A, and the banknotes A introduced therein are securely forcibly dropped and stacked one by one. In particular, when the banknotes are dropped and collected, the internal space 19 of the stacking case 12 is sucked and decompressed to a negative pressure, whereby air resistance at the time of drop can be removed, and the influence of static electricity in the case and the limit of the drop time are eliminated. It is possible to reliably speed up the stacking of banknotes. Moreover, since a pressure difference between positive pressure and negative pressure can be generated on the upper and lower surfaces of the banknote to generate an air flow in the stacking direction in the internal space 19 of the stacking case 12, the wind force, suction force, By adjusting and changing the number of installed fans, the opening area of the duct, and the like, it is possible to adjust the falling speed and the falling posture suitable for stacking banknotes. Further, since the air resistance in the internal space tends to increase as the size of the integrated case is reduced, this is particularly effective when the size is reduced. Further, since the non-contact integration assisting structure using a fluid utilizing the flow of air does not require consumable parts, the cost can be reduced. [Second Embodiment] The banknote stacking device 21 shown in FIG. 2 has various banknotes A1 of different sizes depending on foreign banknotes and banknotes of different denominations.
, A2 ... Are allowed to be mixed and stacked, and in this case also, a large-sized stacking case 22 for stacking and stacking various banknotes A1, A2 ... A bill taking-in mechanism 24 opposed to a bill taking-in opening 23 opened to the side, a blower fan 26 connected to a central upper portion of the stacking case 22 via a blower duct 25,
Equipped with suction fans 28, 28 connected to the left and right sides of the collection case 22 via suction ducts 27, 27, the internal space 29 of the collection case 22 is blown and pressurized by a blower fan 26 from above to suck the suction fans 28, 28. Then, the upper surface side of the banknotes taken in substantially horizontally above the stacking case 22 is blown and pressed downward to forcibly push it down, and the lower surface side is sucked down and pressured to quickly descend.

In particular, when the banknotes are forcibly lowered, the wind force and the suction force are evenly applied to the entire surface of each banknote, so that even the banknotes A1, A2, ... Having different sizes are transmitted in a stable plane. In this case, stable mixed integration performance that does not fluctuate within the case can be obtained. Further, since the air resistance at the time of descent of bills can be removed, the unstable free state of the bills disappears during the descent, and the bills drop right below and are quickly mixed and stacked on the lower stacking surface. [Third Embodiment] FIG. 3 shows a recycling type banknote stacking device 31 having a banknote stacking function and a banknote payout function. The banknote stacking device 31 stacks and stacks banknotes A ... A stacking case 32, a banknote loading / unloading mechanism 34 opposed to a banknote loading / unloading port 33 that is open at one side of the upper part of the stacking case 32, and a blower fan 36 connected to the center of the top of the stacking case 32 via a blower duct 35. Further, common fans 38, 38 capable of switching between air blowing and suction, which are connected to the left and right sides of the accumulating case 32 via common ducts 37, 37, and a pressing plate 39 arranged in the accumulating case 32 are provided.

When banknotes are stacked using this recycling type banknote stacking device 31, the internal space 40 of the stacking case 32 is blown and pressurized by the blower fan 36 from above and the common fans 38 and 38 on both sides suck and reduce the pressure. Then, the upper surface side of the banknotes taken in substantially horizontally above the stacking case 32 is pushed downward and the lower surface side is sucked to quickly drop the banknotes A one by one.

On the other hand, when paying out bills, the blower fan 36 is stopped prior to the payout, and the common fans 38, 3 are used.
8 is switched to blast and blast is applied from both sides. As a result, air is introduced between the stacking surfaces of the banknotes A ... Stacked on the pressing plate 39 to facilitate the vertical separation of the stacked banknotes A ..., and the pressing plate 39 is moved up to the delivery position in this separation promoting state. Then, the accumulated banknotes A on the uppermost surface are fed out via the banknote inserting / removing mechanism 34, and continuous banknotes are prevented based on this separation promotion.

As described above, even when the banknote stacking device 31 is provided in a recycle type, a stable stacking action by utilizing the flow of air and a payout action from this stable stacking state can be obtained. It prevents damage from feeding and jamming, and stabilizes the feeding pitch and feeding timing. [Fourth Embodiment] The banknote stacking device 41 shown in FIG.
Stacking case 4 for stacking and stacking one by one in the vertical direction
2, a bill taking-in mechanism 44 opposed to the bill taking-in port 43 opened at one side of the upper portion of the stacking case 42, and a blower fan 46 connected to the upper portion of the stacking case 42 via blower ducts 45 on both the left and right sides. And a suction fan 48 connected to one side of the integrated case 42 via a suction duct 47,
It is provided with synchronous shutters 49, 49 for opening and closing the air ducts 45, 45 on both the left and right sides.

The synchronous shutters 49, 49 on both the left and right sides simultaneously open both air ducts 45, 45 in synchronization with the taking-in operation of the bills A taken in at the time of stacking, and by the synchronous opening action, the bills A introduced here. An even more uniform wind pressure is applied to the upper surface of the both blower ducts 45, 45.

As a result, the accumulated banknotes A receive a uniform positive pressure from above as the negative pressure is formed by suction on the lower surface side, and descend in a substantially horizontal state. Therefore, a stable descent posture and a stable drop accumulation can be obtained. Further, even if the banknote has an edge fold or a corner fold, the folded portions are separated vertically due to the horizontal descent stacking, so that the banknotes stacked above and below do not get caught or interfere with each other. Therefore, even when it is fed out from this accumulated state, the feeding operation can be stably performed without any trouble in the bent portion. [Fifth Embodiment] Banknote stacking device 51 shown in Figs. 5 and 6.
Is a stacking case 52 for stacking and stacking the banknotes A ...
And a rotary-type blower fan 55.

The bill taking-in mechanism 54 has a bill taking-in port 53.
The feed roller 56 and the take-in roller 5 at a position opposed to
7 and the bills A introduced here are taken in one by one.

In this case, the feed roller 56 has one end fixed to an intermediate portion on a hollow rotary shaft 58 connected to the motor M3 and rotates integrally, and communicates with the hollow portion of the hollow rotary shaft 58, Blower nozzles 59 having a radial length penetrating in the radial direction around the shaft 58 are divided into four equal parts and opened, and the outer periphery except the lower part is covered with a feed roller cover 60. A blower fan 55 is connected to the other end of the hollow rotary shaft 58, compressed air is blown from the blower fan 55 to the hollow portion of the hollow rotary shaft 58, and the blown compressed air is blown by a blower nozzle 59 of the feed roller 56. The air is blown downward from above the collecting case 52 toward the internal space 61 therebelow.

As described above, the inside of the feed roller 56 is provided in the air passage, and the rotary type air is blown and pressurized as the roller 56 rotates in accordance with the bill taking action of the feed roller 56. The banknotes A taken into the case 52 are blown and pressurized, and are forcibly pushed down so as to be knocked down and quickly descended and accumulated. Therefore, the compressed air blowing force from the air blowing nozzles 59 acts as if it were an impeller to prevent electrostatically charged bills from being electrostatically adsorbed, and the rear end of the bills is surely scraped off. Avoid collisions with banknotes. [Sixth Embodiment] FIGS. 7 and 8 show another embodiment of the feed roller 71 provided in the bill taking mechanism. The feed roller 71 has an outer diameter of a size suitable for taking bills and an outer circumference thereof. It is provided in a hollow cylindrical body having a sandwiching elastic body 72 suitable for taking in banknotes such as rubber provided around the surface thereof, and a rotating blade (impeller) 73 for blowing air is internally configured inside the hollow cylindrical body.

The impeller 73 is fixed on the hollow rotary shaft 74, rotates at a high speed independently of the feed roller 71, and freely intervenes in the hollow portion of the feed roller 71. In addition, compressed air blown from a blower fan connected to one end of the hollow rotary shaft 74 is passed through the hollow portion of the hollow rotary shaft 74, and the compressed air passes through the blade flow passages 75 of the impeller 73. A strong air is blown from the air blowing nozzles 76.

In this way, the inside of the feed roller 71 is provided in the rotary type air passage, and the feed roller 71 is
The bills taken in the stacking case are blown and pressed downward by forcing the air flow in accordance with the take-in action, and are forcedly pushed down. Further, in this case, the impeller 73 is housed in the feed roller 71, and the impeller 73 rotates at a high speed, so that high-pressure air can be efficiently output despite the small structure.

As described above, at the time of stacking bills, the internal space of the stacking case can be made a negative pressure to remove air resistance at the time of dropping, so that the stacking of bills can be accelerated. In particular, since it is possible to generate a pressure difference and generate an air flow in the internal space, it is possible to easily adjust the descending speed and descending attitude of the banknotes and stably stack the banknotes in the stacking case at high speed. .

When the banknotes are stacked so as to suck the lower surface side, the banknotes in the process of being descended are sucked in the lower stacking direction and forcibly descended, so that the banknotes are no longer in an unstable free-fall state. It is quickly collected on the lower stacking surface.
Therefore, even in the case of mixing and stacking banknotes having different sizes, since the suction force is uniformly applied to the entire surface of each banknote at the time of dropping, stable stacking performance without fluctuation can be obtained. In addition, since a non-contact integration assist structure using a fluid that uses the flow of air does not require consumable parts, it is possible to achieve longer life and lower cost.

Further, when paying out bills from the stacking case, prior to the payout, the internal space of the stacking case is blown with pressure, and the pressurized air blows the internal space to a positive pressure suitable for payout. Since the payout of the bill can be promoted, the payout operation of the bill becomes stable.

In the correspondence between the present invention and the configurations of the above-described embodiments, the medium stacking device of the present invention corresponds to the banknote stacking devices 11, 21, 31, 41, 51 of the embodiments, and the likewise mediums. Correspond to the banknotes A, A1, A2 ..., The medium stacking unit corresponds to the stacking cases 12, 22, 32, 42, 52, and the suction means include the suction fans 18, 28, 48 and the common fan 38. Corresponding to the suction system of the suction motor M2, and the positive pressure means are the blower fans 16, 26, 36, 46, 55.
The common fan 38, the blower motor M1, the blower nozzles 59 and 76, and the impeller 73 are also supported.
The present invention is not limited to the configuration of the above embodiment.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a banknote stacking device according to a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing a banknote stacking device of a second embodiment of the present invention.

FIG. 3 is a schematic configuration diagram showing a banknote stacking device according to a third embodiment of the present invention.

FIG. 4 is a schematic configuration diagram showing a banknote stacking device according to a fourth embodiment of the present invention.

FIG. 5 is a schematic configuration diagram showing a banknote stacking device of a fifth embodiment of the present invention.

FIG. 6 is an enlarged vertical sectional view showing an air flow passage of a feed roller according to a fifth embodiment of the present invention.

FIG. 7 is an enlarged vertical sectional side view showing an air flow passage of a feed roller according to a sixth embodiment of the present invention.

FIG. 8 is an enlarged vertical sectional front view showing an air flow passage of a feed roller according to a sixth embodiment of the present invention.

FIG. 9 is a schematic configuration diagram showing a stacking state of a conventional banknote stacking apparatus.

[Explanation of symbols]

 11, 21, 31, 31, 41, 51 ... Banknote stacking device 12, 22, 32, 42, 52 ... Stacking case 16, 26, 36, 46, 55 ... Blower fan 18, 28, 48 ... Suction fan 19, 29, 40 , 50, 61 ... Internal space 38 ... Common fan 59, 76 ... Blower nozzle 73 ... Impeller A, A1, A2 ... Paper M1 ... Blower motor M2 ... Suction motor

Claims (3)

[Claims] 1. A medium stacking device for stacking media one by one and stacking them in a medium stacking unit, the medium stacking device including suction means for sucking the internal space of the medium stacking unit to create a negative pressure. 2. The medium stacking apparatus according to claim 1, wherein the suction means sucks the lower surface side of the medium that is taken in and accumulated in the medium stacking section. 3. The medium stacking apparatus according to claim 1, further comprising a positive pressure means for sending air under pressure to the internal space of the medium stacking section to make a positive pressure.