JPH0133544Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Technical Field of the Invention>> The present invention relates to an empty-dispensing prevention device in an automatic bill dispensing machine.

<Prior Art and Problems> Conventionally, in this type of banknote feeding machine, the banknotes arranged on a placement plate are held from the rear side by a presser plate that is biased in the feeding direction by a spring, and a rubber or the like located in the front is used. Press it into contact with the feeding roller of
It is common to use the frictional force caused by the rotation of the delivery roller to discharge the paper to the delivery port side.

However, with such a conventional structure, the spring pressure that biases the presser plate has a strength determined by the spring characteristics, so the sliding resistance of the banknote suddenly increases and the banknote slips. When the situation deteriorates, the spring pressure cannot be increased in response to the worsening of the slippage, and as a result, the bill and the feeding roller may come out of contact, causing so-called "empty feeding."

《Purpose of the invention》 The present invention was made under the above circumstances, and its purpose is to detect empty bills and forcibly move the presser plate in the feeding direction regardless of the spring pressure. It is an object of the present invention to provide an empty-dispensing prevention device for an automatic bill dispensing machine, which is movable so that a contact state between a bill and a dispensing roller can be maintained at all times.

《Structure and effects of the invention》 In order to achieve the above-mentioned purpose, the present invention has the following features:
An endless conveyor belt on which banknotes are placed is always urged by a spring so as to be movable in the feeding direction, and a press plate is provided on the rear end side of the conveyor belt, while the paper money is fed to the feeding end side of the conveyor belt. The present invention has a configuration in which rollers are provided in opposition to each other, and banknotes are arranged in parallel between the feed roller and the presser plate, and a sensor for detecting passage of banknotes is installed at the banknote discharge port of the feed roller. , the sensor is configured such that when a banknote is not discharged for a certain period of time during a banknote feeding operation, the conveyor belt is moved in the feeding direction for a short time by a drive motor, and the banknote is forcibly brought into contact with the feeding roller via the presser plate. With this feature, it is possible to eliminate variations in the sliding resistance of banknotes without modifying the basic cause due to spring pressure, and to prevent empty banknotes from being dispensed.

<<Embodiment of the invention>> Hereinafter, the invention will be described in detail based on an illustrated embodiment.

As shown in FIGS. 1 and 2, 1 in the figure is a pair of left and right conveyor belts on which banknotes A are placed side by side, and is endlessly stretched between a driven pulley 2 and a driving pulley 3. An output gear shaft 6 of a drive motor (DC motor) 5 is engaged with the drive pulley 3 via a connection gear 4, and the drive motor 5 can forcibly move the conveyor belt 1 in the banknote feeding direction X. It's getting old. Reference numeral 7 in the figure denotes a presser plate that presses the rear side of the banknote A fixed on the rear end side of the conveyor belt 1. The presser plate 7 is provided with a presser plate that presses the rear side of the banknote A fixed on the rear end side of the conveyor belt 1. A force of a spring 8 is always applied to urge the banknote to move in the feeding direction It is configured as follows. Further, in the figure, 10 is a sensor installed at the bill ejection opening of the feed roller 9 to detect the passage of the banknote A. As shown in FIG. , when the passage of bill A is not detected and no signal is output for a certain period of time under monitoring by a timer (not shown), that is, the protruding state S
In the case of timing chart a, the feeding roller 9
According to sensor 10 of timing chart B
OFF, turn on the drive motor 5 of the timing chart c, operate the drive motor 5 for a short time to move the conveyor belt 1 in the feeding direction These controls are performed by a computer 11, as shown in FIG. ) to turn off the feeding clutch 13 and operate the drive motor 5, a flowchart of which is shown in FIG.

That is, the drive motor 5 is used only when emptying banknotes A, and the urging force of the spring 8 is used for normal banknote holding.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing an embodiment of the empty-dispensing prevention device in an automatic banknote dispensing machine according to the present invention, FIG. 2 is a bottom view of the main parts, and FIG. 3 is a timing chart of the drive motor. FIG. 4 is a block diagram of the control circuit, and FIG. 5 is a flowchart of bill dispensing. 1... Conveyor belt, 5... Drive motor, 7...
Pressing plate, 8... Spring, 9... Feeding roller, 10
...sensor, A...banknote, X...feeding direction.

Claims (1)

[Scope of utility model registration request] An endless conveyor belt on which banknotes are placed is always urged by a spring so as to be movable in the feeding direction, and a press plate is provided on the rear end side of the conveyor belt, while the paper money is fed to the feeding end side of the conveyor belt. It has a configuration in which rollers are provided facing each other, and banknotes are arranged in parallel between the feeding roller and the presser plate,
A sensor for detecting the passage of banknotes is installed at the banknote discharge port of the feed-out roller, and the sensor stops the feed-out roller when the banknote is not discharged for a certain period of time during the banknote feed-out operation, and controls the conveyor belt by a driving motor. An empty-dispensing prevention device for an automatic bill dispensing machine, characterized in that the device is forcibly moved in the dispensing direction.