JPS6037020B2 - Paper sheet feeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention also includes laminated paper sheets (resin sheets such as films).

) is reliably fed out one by one. For example, paper sheets such as data cards are usually stored in a stacked state, and in order to use the information recorded on such paper sheets, it is necessary to take them out one by one and send them to the Kendori device. be. Figure 1 shows a conventional paper feeder used for such applications, in which a detector detects the position of the top layer of paper sheets Q stacked on a mounting table 1. 2 and a motor 3 controlled by this detector to drive the motor 3 and raise the stacking table 1 according to the decrease in the number of paper sheets, thereby keeping the height of the topmost paper sheet constant. There is. A rotating drum 4 is disposed at a position above one side of the paper sheets stacked on the stacking table 1, with its rotating shaft perpendicular to the surface of the paper sheets. This drum 4 is made of a thin cylinder and has suction holes 5 in the peripheral wall of its cylindrical surface. Inside this rotating drum 4, a suction nozzle 6 connected to a suction pump PI (not shown) is supported by a fixed part (not shown), and its inlet part is installed close to and facing the inner wall of the rotating drum 4. Rotating drum 4
rotates, and the suction hole 5 of the rotating drum 4 connects to the suction nozzle 6.
While passing through the closed part of
I'm trying to send it out to somewhere in between. A cylindrical spray cylinder 9 connected to a compressor CI is provided on at least one side of the paper sheets stacked on the Senrekidai 1, and blows an air flow toward the gaps between the paper sheets in the stacking direction. Paper construction Q that is closely related to
The gap between the layers is widened and separated. A suction pipe 10 is provided on the side in the direction in which the paper sheets stacked on the Hagi layer table 1 are taken out, so as to substantially match the height of the uppermost paper sheet. One side of this intake cylinder facing the cylindrical outer wall of the aforementioned rotating drum 4 has a hollow box shape with multiple rows of small holes 11, and the other end is connected via a pipe 12 to an intake pump (not shown). P2, and when the above-mentioned air intake hole 5 of the rotating drum 4 attempts to attract and send out two (or more) sheets of paper at once, a large number of rows of small holes lined up in the direction of travel of the sheets of paper are used. 2nd page by 11 (later)
It sequentially attracts and separates the paper sheets to prevent two or more sheets from being fed. However, the hollyhock delivery device configured as described above has the following problems.

This is because as the paper leaves stacked on the stacking table 1 are removed and the number of paper sheets stacked on the calendar table decreases, especially when it is the last sheet, the gap between the layers of paper sheets is widened. The air stream blowing the last sheet of paper to Senrekidai 1
If the sheet is taken out and the rotary drum 4 cannot adsorb it, it continues to rotate idly until the operator manually takes out the sheet remaining on the calendar table 1 and places it on the side of the rotary drum 4. There were flaws that needed to be pushed up. The present invention was made in view of the above circumstances, and its purpose is to suction and take out the stacked paper sheets from the surface layer through suction holes formed in the peripheral wall of the rotating drum. This paper sheet feeding device is configured to feed paper sheets between a pair of conveyor belts by the rotation of the rotary drum, and relates to a paper sheet feeding device capable of surely feeding stacked paper sheets one by one.

Hereinafter, details of the present invention will be explained with reference to an illustrated embodiment.

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

In the figure, 21 is a frame, and this frame 21
Bearings 22a and 22b are fixed to each other in a vertically opposing relationship via a support section, and these bearings 22a and 22
A rolled ball screw 23 is rotatably supported at b.

The upper end of the rolled ball screw 23 is connected to a speed reduction mechanism 24.
The rotary shaft of the motor 25 is connected to the rotary shaft of the motor 25 via the rotary shaft of the motor 25. A rolled ball nut 26 is stacked on the outer periphery of the rolled ball screw 23, and paper sheets Q are stacked on the upper surface of the rolled ball nut 26 via a supporting member 27. The mounting stand 28 is fixed horizontally. As shown in the figure, one or more imitation paper sheets S having the same thickness, flexibility, and properties as paper hollywood are placed on the surface of the paper sheet Q on the battle table 28, as shown in the figure. Paper sheets on the delivery side are releasably fixed to the teaching surface. The paper sheets Q are stacked on top of the simulated paper sheets S. Battle stand 2
Above 8 are the paper sheets Q that were sent to Hagi on the above-mentioned battle stand 28.
A position detector 29 formed of a limit switch or the like is provided, which sends an OFF signal when the paper sheet Q located on the top layer contacts the sheet, and sends an ON signal when it does not make contact. In response to the ON signal, the monitor 25 is controlled to rotate (normally rotate) so as to raise the self-rolling ball nut 26 in the direction indicated by an arrow 30 in the figure. Therefore, the paper sheet Q located at the top layer is always held at a constant height. Note that the monitor 25 can selectively perform reverse rotation and stop control by external operation. On the left side of the stacking table 28, there is provided an intake cylinder 31 formed in the shape of a flat rectangular cylinder so as to position the left end of the paper sheets Q stacked on the stacking table 28. ing.

The upper end of this suction cylinder 31 is closed by a plate 32 at a position approximately at the same height as the paper sheets Q located in the uppermost layer. Intake holes 33 are formed in this plate 32, for example, in five rows and three columns. The lower end of this intake cylinder 31 in FIG. 2 is connected to an intake pump P4. On the other hand, at the upper end of the intake cylinder 31 and at least one side thereof, the upper left end of the intake cylinder 31 and the stacked paper hollywood Q in FIG. 2 are sandwiched in the horizontal direction as shown in FIG. A pair of spray cylinders 34a and 34b are provided as shown in FIG.
As shown in FIG. 4, a spray nozzle 35 extending like a slit in the stacking direction of the paper sheets is formed on the wall of the spray tubes 34a, 34b facing the side surface of the stacked paper sheets Q. The above-mentioned spray cylinders 34a and 34b are compressor C
I, respectively. Above the self-suction cylinder 31, a rotating drum 41 having a width narrower than the width of the sheet Q is provided with its axis oriented in a direction perpendicular to the plane of the paper in FIG. Suction holes 42 are formed in opposing portions of the peripheral walls of the two.

Note that the rotating drum 41 is rotationally driven, for example, at a constant speed in the direction indicated by an arrow 43 in the figure by a drive source (not shown). Also, inside the rotating drum 41, there is a suction nozzle 44.
is fixed with its open end facing the inner peripheral surface of the rotating drum 41. The inner surface 44a of one wall that regulates the opening width in the circumferential direction of this suction nozzle 44 is used for paper sheets Q located in the uppermost layer.
The inner surface 44b of the other wall extends from the left end of the rotary drum 41 in the counter-rotational direction of the rotating drum 41, and the inner surface 44b of the other wall is connected to the intake cylinder 31.
It extends further to the left. The suction nozzle 44 is connected to the suction pump P3. A pair of upper and lower conveyor belts 51 and 52 are provided diagonally above the platform 28 in FIG. 2 in parallel so as to circulate in the directions indicated by arrows 53a and 53b in the figure. The upper conveyor belt 51 of these conveyor belts 51 and 52 is laminated via guide rollers 54 and 55 and a guide roller (not shown) that is coaxial with the rotating drum 41 and has a smaller diameter than the rotating drum 41. The conveyor belt 52 located below runs to the left of the stacked millets Q via guide rollers 55, 56, etc. are doing. Both conveyor belts 51 and 52 overlap Z at the position of the guide roller 55, and a V-shaped nip opening 57 is formed on the right side of this overlapping point. FIG. 5 is a perspective view showing a specific example of the stacking table 28 in the present invention. Next, the operation of the apparatus of the present invention configured as described above will be explained.

First, the motor 25 is reversed to lower the counterfeiting stand 28 to the lowest position, and in this state, a plurality of paper sheets Q are placed on the simulated paper straw S on the Hagi calendar stand 28 as shown in FIG. The war calendar is stacked in a stacked state.

Next, the rotary drum 41 is started to rotate, the conveyor belts 51 and 52 are started to run, and the intake pumps P3 and P
4 and compressor CI, and motor 25
Switch to the forward rotation side. In this state, since the paper sheet Q located at the top layer is not in contact with the position detector 29, the motor 25 continuously rotates in the forward direction, and as a result, the paper sheet Q located on the uppermost layer is not in contact with the position detector 29.
gradually increases.

Then, when it rises to a certain position, the paper sheet Q located at the top layer comes into contact with the position detector 29, and as a result, the rotation of the motor 25 is stopped and the rise of the layer table 28 is stopped. Therefore, the paper sheet Q located at the top layer is always held at a constant height. On the other hand, since the rotating drum 41 is rotating in the direction shown by the arrow 43 in the figure, the suction holes 4 provided in its peripheral wall
2 passes through the opening □ of the suction nozzle 44, a suction force acts on the left end of the paper sheet Q located at the top layer in the figure, and as a result, the paper sheet Q located at the top layer rotates. It is attracted to the surface of the drum 41.

As the rotary drum 41 rotates, the adsorbed paper sheets Q are transferred to the left in FIG. transported to the location. As mentioned above, the paper sheets Q located on the top layer are sent out one after another by the so-called adsorption/feeding mechanism. Since a pair of blowing nozzles 35 blow air toward both sides parallel to the feeding direction at the top of the middle left end, the paper sheets Q that are in close contact with each other in the stacking direction are not tilted in one direction. The interlayer gap widens and separates them from each other.

When the suction hole 42 of the rotating drum 41 tries to suck two or more sheets of paper at a time and send them out, the lower paper sheet Q is sucked downward by the suction pipe 31, and its movement is stopped and the paper sheet Q is stopped by the rotating drum 41. Since the transfer is stopped, only the uppermost sheet Q is transferred by the rotating drum 41.

The paper sheet that is attracted and stopped by the suction hole 33 of the suction cylinder 31 is transferred to the next suction hole 42 by the rotation of the drum 41.
When it reaches the opening 4, it is attracted to the suction hole 42 and taken out. In the above example, the case where two sheets of paper are sucked at once was explained, but if three or four sheets of paper are taken out at once, the suction will be performed as shown in FIGS. 2 and 4. Since the intake holes 33 of the cylinder 31 are formed in multiple rows in the sheet feeding direction, the second and subsequent sheets can be suctioned and stopped in each row sequentially from below. After that, the paper sheets Q stacked on the war calendar table 28 were taken out, and the Atsushi table 28
Even if the number of the paper leaves Q above is reduced, especially when it is the last one, one or more simulated paper sheets S
is mounted on the dungeon stand 28 without being restrained on the side in the sheet feeding direction, so that the spray tube 34 can be opened as shown in FIG.
The air flow blown from the spray nozzles 35 of a and 34b widens the gap between the layers of the paper sheets Q and the simulated paper sheets S, as if the number of the paper sheets Q and the simulated paper sheets S are displayed on the Hagi calendar 28.
This is equivalent to the case where there are a number of paper documents Q remaining corresponding to the sum of the number of sheets, and therefore the last paper sheet is easily attracted to the drum and taken out.

In this way, one or more pliable simulated paper sheets having the same thickness as the paper sheets stacked on the Hagi placement table are placed without restraining the paper sheet feeding direction side of the simulated paper sheets. By attaching and fixing it to the station stand, it is possible to reliably feed the paper sheets stacked to the Dunryaku stand one by one from the top layer to the last one without interruption. can.

[Brief explanation of the drawing]

Figure 1 is a side view of the main parts of a conventional paper sheet feeding device;
The figure is a side view of essential parts of a paper hollywood feeding device according to an embodiment of the present invention, FIG. 3 is a view taken along the line A-A in FIG. 2, and FIG. 4 shows a spray tube in the same embodiment. Perspective view, 5th
The figure is a perspective view showing a lectern stand to which a plurality of simulated paper sheets are attached and fixed in the same embodiment. 28...Bed bed, 29...Position detector, 31...Intake cylinder, 34a, 34b...Blowing cylinder, 41...Rotation Drum, 42...
Suction hole, 44... Suction nozzle, 51, 52...
... Conveyor belt, S ... Simulated paper sheets, Q.
...Paper sheets, P3, P4...Intake pump, CI...Combrezzar. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. The paper sheets stacked on the mounting table are sent out sequentially from the surface layer by a suction/feeding mechanism, and an air flow is blown toward the stacked end surface of the paper sheets that are close to the suction/feedout mechanism. In a paper sheet feeding device in which a blowing nozzle is arranged, at least one simulated paper sheet is placed on the above-mentioned placing table so that the side of the paper sheet in the feeding direction of the paper sheet is the placing surface of the above-mentioned placing table. A paper sheet feeding device characterized in that it is attached so that it can be peeled off from the paper sheet.