JPS583153Y2 - paper sheet counting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a paper counting device that conveys and counts paper bills, slips, voting papers, and other paper sheets one by one.

In conventional counting devices, paper sheets piled up in a part of the hopper are sent to the feeding section and the conveyance detection section only by the feeding roller including the eccentric roller, so that the paper sheets are not piled up in the hopper. Unless the stacked sheets are pressed against the feed roller by a push plate loaded with a spring, smooth and seamless feeding of the sheets cannot be achieved.

In particular, it was difficult to feed the last sheet because it slipped between itself and the feed roller and remained on the roller.

Therefore, the purpose of this invention is to provide a paper sheet counting device that can smoothly and seamlessly send the paper sheets piled up in a part of the stacker to the final sheet i to the feeding section and the conveyance detection section. .

Next, an embodiment of this invention will be described with reference to the accompanying drawings.

FIG. 1 shows a cross section of the paper sheet counting device according to this invention. Part A is provided.

Part A of the hopper has a receiving plate 1 that is inclined from right to left in FIG. 1, and paper sheets are supported on the receiving plate 1.

The receiving plate 1 extends in the width direction of the counting device (direction perpendicular to the plane of the drawing), and near both ends of the width direction, there are cuts extending in the length direction of the counting device or in the sheet feeding direction. There is a chip 1a.

An eccentric roller 3 is arranged below these notches 1a, and a portion thereof passes through the notches and appears on the upper surface of the receiving plate 1.

The eccentric roller 3 is located above the center of the stacked papers (with respect to the sheet traveling direction), and rotates in a counterclockwise direction to send the sheets to a feeding section B (to be described later). While swinging up and down, place the bottommost piece in the same notch 1a.
From there, it is fed to the upper surface of the receiving plate in cooperation with the belt 2 and sent to the feeding section B.

The feeding belt 2 is suspended between a pulley 4 attached to a feeding drum shaft 20 and a pulley 6 attached to an eccentric roller shaft 5.

In addition, the upper surface of the feed belt 2 is in contact with the lowest one of the sheets stacked on the hopper part A and supported on the receiving plate 1 at the notch 1a of the receiving plate 1, as will be described later. The paper sheets are moved in the direction of the arrow by the rotation of the feeding drum 7 and the eccentric roller 3, and the sheet is delivered to the feeding section B in cooperation with the eccentric roller 3.
To send sheets one by one reliably and quickly.

The feeding section B is a section that reliably separates the paper sheets to be counted that have been fed from the hopper part A one by one and feeds them to the detection conveyance section C having an abnormal paper sheet detection section. It consists of the above-mentioned feeding drum 7 and sheet separation block 8.

The feeding drum 7 has an outer periphery made of a member having a coefficient of friction greater than the frictional resistance acting between the sheets, and it reliably feeds each sheet into one sheet between it and a separating block 8, which will be described later. It is separated into parts and sent to the detection conveyance section C.

On the other hand, in the separation block 8, the curved surface 8a in contact with the feeding drum 7 has an appropriate friction coefficient that is larger than the friction coefficient between the paper sheets and smaller than the friction coefficient between the feeding drum 7 and the paper sheets. made of parts.

Further, the curved surface 8a in contact with the feeding drum 7 has a separation block 8 between the feeding drum 7 and the separating block 8 depending on the difference between the amount or quality of the reflected light on the outer circumferential surface of the feeding drum 7 and the amount or quality of the reflected light from the sheet surface. A residual paper sheet detection mechanism 8b can be provided to detect whether or not there are any paper sheets between.

The separation block 8 has a pressure welding spring 9 with the shaft 21 as a fulcrum.
The button is pushed in the direction of pressure contact with the feeding drum 7 by the button, and the gap between the separation block 8 and the feeding drum 7 can be adjusted as desired by turning a screw-type paper thickness adjustment knob 10.

The detection conveyance unit C photoelectrically detects abnormal conveyance conditions of conveyed paper sheets that may cause miscounting or accidents, and the number of filtered paper sheets conveyed under normal conditions, and detects abnormal conveyance conditions. When detected, an operation signal is sent to suddenly stop the drive motor 30, an alarm is issued, and an abnormal condition is displayed. When a paper sheet in a normal conveyance condition is detected, an operation signal is sent to display the count on the counter. The partial tearer for transporting paper sheets to one part of the stunker includes a delivery roller 11, a transport belt 22, pull-out rollers 12 and 13, a detection section 14, and the like.

The delivery roller 11 is located near the lower end of the separation block 8 so as to contact the delivery drum 7 and is driven by the delivery drum 7.

The paper sheets separated one by one by the separating block 8 and the feeding drum 7 are sandwiched between the feeding drum 7 and the feeding roller 11 at the lower end of the separating block 8, and are synchronized with the feeding drum 7. The receiver is rotated and transferred to the conveyor belt 22.

The conveyor belt 22b, the pulley 23 provided on the feed roller shaft 22a, and the stack 7''-!J-2, which is part of the stunker.
4j 25, and its circumferential speed is an appropriate multiple of the circumferential speed of the feeding drum 7 and feeding roller 11. The leading edge of the paper sheet is sandwiched between the conveyor belt 22 and the pull-out rollers 12 and 13 disposed above it, and separated from the following sheet to create an appropriate distance between it and the following sheet. and transport it.

The pull-out rollers 12 and 13 are provided above the conveyor belt 22 so as to be in contact therewith, and are driven by the conveyor belt 22.

In addition, the pull-out rollers 12 and 13 sandwich and convey paper sheets between themselves and the conveyor belt 22, and at the same time push down the conveyor belt 22 and stack the sheet! A step will be provided between J-24 and J-25.

The detection unit 14 provided between the pull-out rollers 12 and 13 is a known detector disposed above and below the conveyance path of the filter paper sheet conveyed on the conveyor belt 22 and facing each other on a line perpendicular to the sheet conveyance direction. It consists of a light projector 26 and a light receiver 27.

A part of the stacker shares the conveyance belt 22 of the detection conveyance section.

A paper industry stopper 28 is provided at an appropriate position from the conveyance end of the conveyance belt 22.

The sheet presser 29 is positioned above the conveyor belt 22.

The counting device based on this invention can be used for other printed circuit boards,
Although it includes a conductive part, etc., the explanation thereof will be omitted since it is not the gist of this invention.

The paper sheet counting device of this invention having the above configuration operates as follows.

First, paper sheets to be counted are stacked on the receiving plate 1 of the hopper part A, and the start push button 31 is pressed in the direction of the X-ray arrow.

The motor 30 is started, and its rotation is transmitted to the eccentric roller shaft 5 via a transmission belt (not shown) or the like.

Therefore, the eccentric roller 3 rotates and swings the stacked paper sheets up and down, and the lowest sheet of paper is quickly and reliably fed to the feeding section B by friction with the feeding belt 2.

At this time, when two sheets of paper are fed into the feeding section B, the frictional resistance of the upper sheet with the curved surface 8a of the separation block 8 is greater than the frictional resistance of the lower sheet. The feeding becomes slower, and the frictional resistance of the feeding drum 7 for the lower sheet is greater than the frictional resistance between the upper sheet and the upper sheet, so the upper sheet stays at that position and is moved to the detection conveyance section C in advance. When the surface of the pay-out drum contacts the upper paper surface, the sheet is sent to the sensing conveyance section C following the preceding sheet.

Through this series of movements, the paper sheets are reliably sent to the detection conveyance section C one by one.

Paper sheets are sandwiched between the feeding drum 7 and the feeding roller 11 which is driven in contact with the feeding drum I! Then, it is sandwiched between the pull-out rollers 12 and 13 driven by the conveyor belt 22 and drawn out, and reaches the conveyor belt 22.

Since the pull-out rollers 12 and 13 and the conveyor belt 22 convey the paper at a circumferential speed that is an appropriate multiple of the circumferential speed of the feed-out drum 7 and the feed-out roller 11, the paper sheet being conveyed is It is separated from the paper sheet and transported.

The pull-out rollers 12, 13 sandwich and convey the sheet between them and the conveyor belt 22, and also push down the conveyor belt 22 to create a step between them and the stack pulleys 24, 25.

Due to this step, the rear part of the preceding paper leaf flips up, the rear part of the paper leaf floats up, and the leading edge of the following paper leaf is fed under it.Then, by repeating this action one after another, the paper leaf is stacked from below on one part of the stacker. .

The amount of light that passes through the paper sheet when the paper sheet passes between the detection light projector 26 and the detection light receiver 27, which are provided oppositely above and below the transport path in the middle of the detection transport section C, and the passing time When the amount of transmitted light is outside the preset amount of transmitted light, or when the preset passing time is exceeded, it detects this and issues an electrical signal, and this electrical signal activates the drive motor. A reverse current is momentarily passed through the drive motor 30.
to stop.

When the amount of transmitted light and the passing time are within the range of preset values, the count display is cumulatively displayed by l by one electric signal every time the light is interrupted.

When counting a specified number of sheets, the drive motor is similarly stopped when the counted number reaches the specified number.

Conventional paper counting devices are equipped with an electromagnetic clutch and an electromagnetic brake, which are activated by an electric stop signal to stop paper feeding. Since the signal causes a reverse current to flow through the motor for a short period of time and causes the motor to suddenly stop, an electromagnetic clutch and an electromagnetic brake are not required.

A relatively large amount of paper dust is generated during the handling of paper sheets, and especially when counting banknotes, in addition to the paper dust, foreign matter attached to the paper sheets becomes dust and scatters.

When electromagnetic clutches and electromagnetic brakes are used, a large amount of paper powder and dust adheres to the electromagnetic clutches and electromagnetic brakes and interferes with their operation. , the electromagnetic clutch and the electromagnetic brake themselves, as well as space for installing them, are not necessary with this invention.

Additionally, the remaining paper sheet detection mechanism 8b or the detection unit 14 is not limited to the illustrated position, but can be installed at any position along the conveyance path where the presence of paper sheets cannot be visually confirmed from the outside. The accuracy of sheet counting is improved by detecting the presence of paper sheets that have stopped and remained at the position, and displaying the result and issuing a warning.

An example of the circuit configuration of the residual sheet detection mechanism 8b or the detection section 14 is shown in FIG.

In FIG. 3, a sensor consisting of a lamp L and a phototransistor PT is installed in a position that cannot be seen from the outside inside the device, and when a sheet of paper stops on the sensor, the phototransistor PT is activated. It is designed to be turned on.

Since the AND gate on the way is controlled so that the signal is output only when motor 5TOP is reached, motor 5T
When both the OP signal and the paper sheet presence signal are input to the AND gate at the same time, an output is generated, which drives the transistor TR1 and indicates to the operator that the paper sheet is stopped inside the machine by both the LED and the buzzer B. let them know that you are there.

A pulse signal is input to the AND gate, and the LED and buzzer are designed to blink and sound.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing the overall configuration of the sheet counting device from the front, Figure 2 is a cross-sectional view of the main part shown on the FIG. 2 is a diagram showing an example of a circuit configuration. In the figure, A is a part of the hopper, 1 is a receiving plate, 1a is a notch, 2 is a feed belt, and 3 is an eccentric roller.

Claims (1)

[Scope of utility model registration request] In a paper sheet counting device that feeds paper sheets piled up on a receiving plate of a part of a hopper into the device one by one and counts them,
The receiving plate has at least a pair of notches extending in the sheet feeding direction and spaced apart from each other in the width direction of the device, and also includes an eccentric roller and a feeding thickness that face the upper surface of the receiving plate from the notch. A paper sheet characterized in that the belt is rotatably provided in the paper sheet feeding direction, and the paper sheet is fed into the inside of the device by the cooperative action of these eccentric rollers and the feeding belt. type counting device.