JPH0462115B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a counterfeit coin removal device that automatically removes counterfeit coins detected during coin sorting in a mixed coin sorting and counting machine.

<Prior Art> Conventionally, the fake coin removal means in commonly used coin sorting and counting machines simply switches a part of the coin passage to the return box side due to the function of a coin discrimination sensor placed in the coin passage. It was just that. That is,
Up until now, this type of counterfeit coin removal has been implemented by temporarily stopping coin feeding upon detection of a counterfeit coin, and pushing all coins (including genuine coins) located in the coin passage into a return box. Not only does this lead to a decrease in the efficiency of coin counting, but it is also necessary to select defective coins again from among the rejected coins. This appears as a significant drawback, particularly in mixed coin sorting and counting machines that are equipped with a sorting passageway having chute for each denomination and handle a wide variety of coins.

<Purpose of the Invention> In view of the above-mentioned circumstances, an object of the present invention is to provide a counterfeit coin removal device that identifies counterfeit coins mixed in during sorting and eliminates only counterfeit coins without affecting the sorting calculation function. This is what I did.

<Structure of the Invention> The present invention provides a coin passage provided with a coin discrimination sensor that horizontally feeds and conveys a group of coins one by one using centrifugal force on a rotary disk, and a coin passage connected to the coin passage. In a mixed coin sorting and counting machine equipped with a sorting passage provided with a type chute, a sorting passage is arranged continuously in a direction perpendicular to the coin passage and the coin conveying direction, and a coin passage is provided at the tip of the coin passage. A fake coin return guide is provided that has a curved wall surface that is raised higher than the conveyance surface and the coin comes into contact with to change the conveyance direction. The guide can be lowered freely until the top surface of the guide is flush with the transport surface of the coin passage, and only the fake coins traveling straight through the coin passage are transported straight without coming into contact with the curved wall by lowering the fake coin return guide to the return box. When the coin is a genuine coin that has passed through the coin passage, the counterfeit coin return guide remains protruding from the conveyance surface by a predetermined height, and the coin comes into contact with the curved wall surface and is guided in the conveyance direction along this wall surface. The counterfeit coins are swung at right angles and guided into the sorting passage, and when counterfeit coins pass, the counterfeit coin return guide is lowered to eliminate contact with the curved wall surface and allow the counterfeit coins to move straight and be removed.

<Example> The present invention will be described below based on the drawings of the example.

1 is a rotary disk 2 on which the coin A is placed and its peripheral portion 2
A is a centrifugal force type coin supply unit consisting of a cylindrical peripheral part 3 that stands upright. A shutter/guidance bending arm member 5 which can be freely opened and closed and can be moved in and out of the groove 4 is provided, and the base of the coin passage 6 is made to face the tip position of the bending arm member 5. This coin passage 6 has a take-in roller 7 at the base of the conveyance surface 6a, a pair of endless conveyance rollers 8 extending parallel to the conveyance surface 6a across the entire front area, and both sides of the intermediate position. Coin discrimination sensors 9, 9 for detecting fake coins are provided opposite to each other, and a tapered roller 10 for width adjustment is provided on the upper surface of one of the carrier-side transport ropes 8 at the positions of the coin discrimination sensors 9, 9.
A counterfeit coin removing device 12 is provided by disposing a counterfeit coin return guide 11 that can be raised and lowered at the tip of the conveying surface 6a. In this case, the wide conveyance surface 6a that is tangentially branched from the rotary disk 2 is connected to the conveyance guide 1 disposed on one side.
It has three inclined guide portions 13a to form a narrow width at the coin discrimination sensor position. Reference numeral 14 denotes a sorting passage with a right-angled hooked arrangement on one side of the guide 11 at the tip of the coin passage 6 on the curved end 11a side. Type chute 16 for the number of denominations (1, 5,
10, 50, 100, and 500 yen coins) are sequentially arranged from the small diameter, and two pairs of conveyance ropes 17 are stretched in parallel on the conveyance surface 14a, and the upper surface of the carrier portion of the conveyance ropes 17 is In this case, a taper roller 18 for pressing down coins is provided at each droplet 15 position, and a denomination sensor 21 is arranged in front of the droplet 15. 22 is the sorting passage 14 of the coin passage 6
An exclusion timing sensor 23 provided on the conveying surface 6a, which is the branching position, is a confirmation sensor interposed between the leading end of the guide 11 in the straight-line direction and the return box 24 disposed ahead thereof.

To explain this operation now, first, the coin supply section 1, which serves as a coin supply tank, is filled with coins A group of appropriate denominations, and the rotary disk at the bottom of the coin supply section 1 is rotated. In this case, the shutter/guiding bending arm member 5 located in the feeding groove 4 of the peripheral wall 3 is turned off when the solenoid 25 disposed at the base end is turned off.
This side surface 5a is a tangential position that serves as a feeding guide for the rotary disk 2, and the coin passage 6 is on standby.
Curved wall surface 11b for lateral transition located at the straight conveyance end
The guide 11 for returning fake coins is
The solenoid 26 disposed at the lower end of the coin A is turned OFF, and the spring 27 attached to the shaft portion 26a has the elasticity to project at least the thickness of the coin above the conveying surface 6a, causing the coin A traveling straight to contact the curved wall surface 11b. It will be like this.

Here, when the rotary disk 2 rotates, the coins A group placed on the rotary disk 2 are branched to the peripheral side by this centrifugal force and are lined up sequentially along the arc of the peripheral wall 3. A constantly rotating take-in roller is guided to the distal end of the bending arm member 5 outside the dispensing groove 4, and is positioned in the coin passage 6 in this state. 7, one coin A is fed to the conveying surface 6a side. The coin A that has advanced to the coin passage 6 is transported forward at high speed by an endless conveyance rope 8 that rotates at a higher speed than the rotation of the take-in roller 7, and is separated from subsequent coins A by a gap.
Further, the position of the outer side edge Aa of the coin A advancing to the transport rope 8 section is regulated by the inclined guide 13a arranged on one side, and the inner side edge Ab is regulated by the position of the coin discrimination sensor 9, 9. 2 pressed against the top surface of coin A
One of the book transport ropes 8 is a tapered roller 10
It is pushed outward by the taper action of. That is, since the coin A takes a conveyance position in which the outer side edge Aa reliably contacts the conveyance guide 13 by the lateral pressing of the tapered roller 10, correct measurement can be performed by the coin discrimination sensors 9, 9. In this case, the coin discrimination sensors 9, 9 use known fake coin detection means.

In this state, if coin A is a genuine coin,
The solenoid 26 of the fake coin return guide 11 is not activated, so the coin A that has proceeded through the coin passage 6 comes into contact with the curved wall surface 11b of the guide 11,
b, and proceed to the sorting passage 14 perpendicular to the coin passage 6, where they are sent forward by the conveying rope 17 of the sorting passage 14. In this sorting passage 14, drop ports 15 corresponding to each denomination are arranged sequentially from the small diameter holes, so that, together with the downward pressure of the push-down tapered roller 18, the droplets 15 fall into the drop ports 15 and chute according to the denomination. It is sorted into 16.

Next, coin discrimination sensors 9, 9 in the coin passage 6
When a counterfeit coin is detected at the position, the shutter solenoid 25 is turned on and the bending arm member 5 is rotated to prevent the subsequent coin A from entering the coin passage 6 before starting the next operation. When the fake coin A' that has passed through the coin discrimination sensors 9 and 9 reaches the removal timing sensor 22, the removal solenoid 26
is turned ON, and the counterfeit coin return guide 11, whose position has been restricted by the machine frame 29 with an upper limit stopper 28 at the height of one coin, is now at least on the same plane as the conveying surface 6a and the upper guide surface 11c. Since there is no contact wall, the fake coin A' that has traveled on this conveying surface 6a goes straight and falls into the return box 24. At this time, since the confirmation sensor 23 is interposed between the return box 24 and the guide 11, the number of fake coins is counted.

In addition, when two coins A are jammed into the feeding groove 4 of the coin supply section 1 and the coin passage time between the coin discrimination sensors 9 and 9 exceeds the setting (for example, 5 seconds), The coin discrimination sensor 9, 9
The shutter solenoid 25 is turned ON by the signal, and the hooked base 5b of the bending arm member 5 rotates about the support shaft 30 in conjunction with the suction of the shaft 25a. Coin A (two coins stacked on top of each other) entered the feeding groove 4 at the peripheral edge 2a position and became wedge-shaped in the feeding groove 4.
is forcibly pushed back toward the center of the rotary disk 2 to remove the biting. This rotation (hitting and throwing) of the bending arm member 5 is performed three times, and the motor (not shown) is stopped one second after turning on the third time.

<Effects of the Invention> As described above, the counterfeit coin removal device of the present invention has a coin passage provided with a coin discrimination sensor and a sorting passage connected thereto in a hooked arrangement, and a lateral transfer plate arranged at the tip of the coin passage. The counterfeit coin return guide, which serves as the contact wall, is configured to be able to be lowered using a solenoid that is activated by the signal from the coin discrimination sensor, so that only the counterfeit coins are allowed to travel straight through the lowering of this guide toward the return box. It can be automatically removed, and genuine coins are moved to the sorting passage by raising the guide, enabling highly efficient sorting. Moreover, since the switching means of the present invention has an extremely simple structure, it can cope with high-speed mixed coin sorting and counting machines, and is of a robust type that does not cause failures or malfunctions.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention: Fig. 1 is a plan view, Fig. 2 is a perspective view showing the main parts, Fig. 3 is a side view of the coin passage, and Fig. 4 is a view of the counterfeit coin return guide. 5A and 5B are a front view of the same and a front view of the operating state, FIG. 6 is a front view of the tapered roller for width adjustment, and FIG. 7 is a sectional view of the coin supplying and feeding groove. DESCRIPTION OF SYMBOLS 1... Coin supply part, 2... Rotating disk, 3... Peripheral wall part, 4... Feeding groove, 5... Bent arm member, 6
... Coin passage, 7 ... Take-in roller, 8 ... Conveyance rope, 9 ... Coin discrimination sensor, 10 ... Taper roller, 11 ... Fake coin return guide, 14 ...
... Sorting aisle, 24... Return box.

Claims (1)

[Claims] 1. A coin passageway equipped with a coin discrimination sensor that horizontally feeds and conveys a group of coins one by one on a rotary disk;
In a mixed coin sorting and counting machine comprising a sorting passage in which a denomination-specific chute is arranged continuous to the coin passage,
This coin passage and a sorting passage are arranged in succession in a direction perpendicular to the coin conveyance direction, and a curved wall surface is provided at the conveyance tip position of the coin passage, which is higher than the conveyance surface of the coin passage and upon which coins come into contact and change the conveyance direction. A counterfeit coin return guide is provided, and the counterfeit coin return guide is lowered until the upper surface of the guide, which is the upper surface of the curved wall surface, is flush with the conveying surface of the coin passage due to the counterfeit coin signal of the coin discrimination sensor. This counterfeit coin removing device is characterized in that only the counterfeit coins traveling straight in a coin passage are transported straight without contacting a curved wall surface by the descent of a guide for returning counterfeit coins, and fall into a return box.