JPS58172134A - Delivery device for paper leaf - Google Patents

Abstract

PURPOSE:To deliver paper leaves one by one in a proper form by regulating the position of end faces of accumulated paper leaves by means of a suction cylinder with plurality of suction holes for blowing out air to gaps of paper leaf layers from an exhaust cylinder with slits or small holes. CONSTITUTION:When a placing table 8 is raised, the uppermost layer of paper leaves Q is brought in touch with a position detector 9 to stop a motor 5, and paper leaves Q are kept at a constant height. Every time suction holes 22 on the peripheral wall of a rotating drum pass the front of a suction nozzle 24, a suction force works to the uppermost layer of paper leaves Q, which is absorbed on the surface of a rotating drum 21, carried into a holding port 37, and finally held between conveyor belts 31 and 32 to be conveyed. In this construction, an air stream is blown by a pair of jet nozzles 15 in the upper part of the right end of the paper leaves Q toward both sides in parallel with the delivery direction, and paper leaves Q are separated on the side of the delivery to be delivered one by one in a proper form.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a paper sheet dispensing device, and more particularly, to a paper sheet dispensing device capable of dispensing stacked paper sheets one by one in the correct form. .

[Technical background of the invention and its problems]

2. Description of the Related Art A feeding device that feeds stacked paper sheets one by one toward a desired location is known. Generally, such a sheet sequential feeding device takes out the topmost sheets of sheets stacked on a table from the stacked position by vacuum suction transfer or friction transfer, and feeds them, for example, between a conveyor belt. It is configured as follows.

By the way, in this type of feeding device, the paper sheets are set in a stacked state, so when the paper sheet to be fed and the adjacent paper sheet are in close contact with each other, two or more sheets may be stacked. may be sent out all at once, or may not be sent out if the adhesion force is large. In order to solve this problem, an air stream is normally blown onto the stacked edge of the paper sheets towards the gaps between the layers of the paper sheets, and this blowing forcibly creates gaps between the paper sheets. The existence of this gap reduces the adhesion force.

However, the paper sheet dispensing device constructed as described above with a length of 7 inches has the following problems.

It is the upper layer of paper sheets stacked on a table.
There was a problem in that the airflow blowing toward the gaps caused the paper sheets to fade, and then to be sent out to the conveyance system in a slender state. When the paper is transported to the conveyance system in this tilted state, a reading device installed during the transport, for example, scans the surface of the paper in a direction perpendicular to the direction of travel and reads the information recorded on the paper. The disadvantage was that it could not be read in some cases. In addition, the airflow that blows into the gap between the layers will not only cause the paper sheets to tilt on the table, but also cause them to shift in the opposite direction to the feeding direction, and in extreme cases, they may fall off the table, making it impossible to feed the paper sheets. There was a drawback.

[Purpose of the invention]

This invention was made to solve the above-mentioned drawbacks.
The purpose of this is to ensure that the paper sheets stacked on the loading table are not damaged, nor are they moved in a direction opposite to the feeding direction. It is an object of the present invention to provide a complete paper sheet feeding device capable of feeding one sheet at a time in the correct form.

[Summary of the Invention] A loading table for placing paper sheets in a stacked state, a driving stage for moving the loading table in the vertical direction, and a drive stage for moving the loading table in a vertical direction, and a drive stage for moving the sheet sheets stacked on the loading table at one end on the sending side. An intake cylinder provided to restrict the position and having a plurality of intake holes on the upper surface thereof, and a mounting table provided on the side of the suction cylinder to restrict the position of all the stacked paper sheets on both sides, and to control the position of the stacked paper sheets. An exhaust pipe that has slits or small holes that blow airflow toward the gap, and a paper that is installed above one side of the stacked paper sheets on the mounting table, and is located on the top layer of the stacked paper sheets. The layer is composed of a feeding mechanism that sequentially sends out the leaves to the conveyor belt, and a guide that is located on the end surface opposite to the feeding direction of the paper sheets stacked on the mounting table and that locks the rear end of the paper sheets in the feeding direction. Ru.

〔Effect of the invention〕

The paper sheets stacked on the loading table do not roll around on the loading table and can be prevented from moving in a direction different from the feeding direction, ensuring that the stacked sheets are stacked one by one. It is possible to send the paper to the conveyor belt in the correct form, thereby allowing the reading device provided on the conveyor to operate in a good condition.

[Embodiments of the invention]

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

FIG. 1 is a side view showing the main parts of a feeding device according to an embodiment of the present invention. In the same figure, 1 is a frame, and this frame 1 has bearings 2a and 2b connected to it via a support member.
are fixed in a vertically opposing relationship, and these bearings 2a, 2bK rolled ball screw 3 are rotatably supported. The upper end of the rolled ball screw 3 is connected to the rotating shaft of a motor 5 via a speed reduction mechanism 4. A rolled ball nut 6 is screwed onto the outer periphery of the rolled ball screw 3, and a mounting table 8 for placing paper sheets Q in a stacked state on the upper surface of the ball nut 6 is horizontally attached via a support member 7. Fixed. Above this mounting table 8, an off signal is sent out when the paper sheet Q located at the top I- of the paper sheets Q placed on the above-mentioned placing table 8 comes into contact with it, and an on signal is turned on when there is no contact. A position detector 9 formed of a limit switch or the like that sends out a signal is provided, and an ON signal from this position detector 9 causes the motor 5 to rotate the rolled ball nut 6'5.
r: Rotate to raise it in the direction shown by arrow 10 in the figure (
Normal rotation) is controlled. Therefore, the paper sheet Q located at the top layer is always maintained at a constant height. Note that the motor 5 can be selectively reversed and stopped by external operation. An intake cylinder 11 formed in the shape of a flat rectangular cylinder is provided so as to position the left end surface of the paper sheet Q. The upper end of this suction cylinder 11 is closed by a plate 12 as shown in FIG. Intake holes 13 are formed in five rows and three columns.

The end portion of this intake cylinder 11 in the middle of FIG. 1 is connected to an intake pump P1. On the other hand, at the upper end and both side surfaces of the intake pipe 11, there is a relationship shown in FIG. 2 in which the intake pipe 11 and the upper left end of the piled paper sheets Q in FIG. A pair of exhaust pipes 14a and 14b are provided. As shown in FIG. 3, a spray nozzle 15 extending in the stacking direction in the form of a slit is formed in the ears of these exhaust pipes 14a and 14b facing the side surface of the stacked paper sheets Q. The cylinders 14a and 14b are each connected to a compressor C1.

Above the suction cylinder 11, a rotating drum 21 having a width narrower than the width of the paper sheet Q is provided with its axis oriented in a direction perpendicular to the plane of the paper in FIG. Suction holes 22 are formed in opposing portions of the peripheral wall, respectively. Note that the rotating drum 21 is rotated and driven, for example, at a constant speed in the direction indicated by an arrow 23 in the figure by a drive source (not shown). Further, a suction nozzle 24 is fixed inside the rotating drum 21 with its open end facing the inner circumferential surface of the rotating drum 21 . The inner surface 24a of one wall that regulates the opening width of the suction nozzle 24 in the circumferential direction extends from the left end of the paper sheet Q located in the uppermost layer toward the position of the quantity in the counter-rotation direction of the rotary drum 210, and Inside surface 24 of the other wall
b extends toward the left side of the intake cylinder 11. The suction nozzle 24 is connected to a suction pump P. Therefore, on the left-F side of FIG. 1 of the mounting table 8,
A pair of upper and lower transport bells) 31 and 32 are indicated by arrows 33 in the figure.
Two pairs are provided in parallel so that they circulate in the directions indicated by a and 33b. The upper conveyor belt 31 of these conveyor belts 31 and 32 has a guide roller 34
, 35 and coaxial with the rotating drum 21, and one]
The conveyor belt 32 located below runs through a guide roller (not shown) with a smaller diameter than the rotating drum 21, passing above the stacked paper sheets Q, and the conveyor belt 32 located below runs through a guide roller (not shown) having a diameter smaller than that of the rotating drum 21. The vehicle is traveling to the left of the stacked paper sheets Q. and both conveyor belts 31;
32 is polymerized at the position of the guide hole 35, and a 7-shaped insertion opening 37 is formed on the right side of this polymerization point.

Further, a plate 39 is attached to a support member 38 attached to the frame 1 and supporting the entire upper end of the ball screw 3. A groove is cut in the center of the plate 39, and the supporting member 7 of the mounting table 8 is disposed in this groove so that it can move up and down by the rotation of the ball screw 3 in conjunction with the rotation of the motor 5. There is. A sheet guide plate 40 is attached to one side of the plate 39. The guide plate 40 is a thin plate having a U-shaped cross section in the width direction, and the support member 7 can move up and down as the ball screw 3 rotates through the recessed portion of the plate. One surface of the guide plate 40 supports the rear end of the paper sheets Q stacked on the mounting table 8 in the feeding direction.

Next, the present invention configured as described above will be explained in detail.

First, the motor 5 is reversed to lower the mounting table 8 to the lowest position, and in this state, a plurality of paper sheets Q are stacked on the mounting table 8 as shown in FIG. Next, the rotary drum 21 is started to rotate, the conveyor belts 31 and 32 are started to run, the intake pumps p, , p and the compressor C1 are operated, and the motor 5 is switched to the normal rotation side.

In this state, since the paper sheet Q located at the top layer is not in contact with the position detector 9, the motor 5 continuously rotates in the forward direction, and as a result, the mounting table 8 gradually rises. When the paper sheet Q is raised to a certain position, the paper sheet Q located at the highest layer comes into contact with the position detector 9, and as a result, the rotation of the motor 5 is stopped and the lifting of the mounting table 8 is stopped. Therefore, the paper sheet Q located at the top layer is always kept at a constant height.

On the other hand, since the rotating drum 21 is rotating in the direction shown by the arrow 23 in the figure, each time the suction hole 22 provided in the peripheral wall passes the front surface of the suction nozzle 24, the paper sheet Q located at the top layer is
A suction force acts on the left end in the figure, and as a result, the paper sheet Q located in the uppermost layer is attracted to the surface of the rotating drum 210.

As the rotating drum 2.1 rotates, the adsorbed paper sheets Q are transferred to the left in FIG. It is held in between and transported to the desired location.

As mentioned above, the paper sheets Q placed on the top layer are sent out one after another by the so-called adsorption/feeding/feeding mechanism.
A pair of blowing nozzles 15 blow air toward both sides parallel to the feeding direction at the upper left end in Fig. 1, so that paper sheets Q that are in close contact with each other in the stacking direction are
are separated from each other on their delivery direction sides. At this time, the rear end of the paper sheet Q in the feeding direction is locked by the guide plate 40 to prevent the paper sheet Q from being tilted due to the air flow and from moving in the opposite direction to the feeding direction. Therefore, multi-feeding is not inhibited by the adhesion force in the stacking direction, and
Furthermore, it is possible to prevent the movement of the paper sheets Q including falling off from the mounting table 8 while the paper sheets Q are tilted, and it is possible to feed the paper sheets Q one by one toward the conveyor belt in a normal form. Further, even if two sheets are to be fed, the suction action of the suction cylinder 11 prevents the paper sheet Q located on the lower side from being fed. Therefore, the paper sheet information reading device provided in the transport section can be operated satisfactorily, thereby improving the performance of the paper sheet handling device.

[Other embodiments of the invention] 4.・、・.

In the above-described embodiment, a case was described in which the cross section in the width direction of the guide 40 that locks the rear end of the paper sheet Q is U-shaped, but the shape is not limited to this.

Further, the locking guide 40 is attached to a plate 39 which is a component of the mounting table drive mechanism, but the present invention is not limited to this. For example, the locking guide 40 may be attached directly to the frame, or the position detector 9 may be attached to the member. It's okay to be hit.

[Brief explanation of the drawing]

- Fig. 1 is a side view showing the main parts of a paper sheet sequential feeding device according to an embodiment of the present invention, Fig. 2 is a view taken along the line A-A in Fig. 1, and Fig. 3 is a view taken along the line A-A in Fig. 1; It is a BB line cut arrow view in . 8... Mounting table 9 Position detector 11/Suction pipe 14a, 14b Exhaust pipe 21 Rotating drum 22/Suction hole 31.32 Conveyor belt,
39 Plate 40 Locking guide Q Paper sheets p,,p, Suction pump C1 Compressor 11'
.

Claims (1)

[Claims] Supports the rear end of the stacked paper sheets in the feeding direction in a paper sheet feeding device that blows air to the leading edge of the stacked paper sheets in the feeding direction and feeds them sequentially from those located on the surface layer. A paper sheet feeding device characterized by comprising a guide plate.