Coin wrapping machine

Details Coin wrapping machine Coin wrapping machine

2000-04-05

2003-02-18

Kim, Eugene (Department: 3721)

Package making

With means responsive to a sensed condition

Of individual contents or group feed or delivery

C053S504000, C053S210000, C053S211000, C053S212000

Reexamination Certificate

active

06519921

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a coin wrapping machine and, particularly, such a machine which can stack and wrap coins having different shapes, diameters, thickness and the like efficiently and as desired.
DESCRIPTION OF THE PRIOR ART
Japanese Patent Application Laid Open No. 10-230905 discloses a coin wrapping machine comprising a rotatable disk for feeding out coins deposited into the coin wrapping machine one by one to a coin passage, a discriminating and counting means disposed in the coin passage for discriminating whether or not coins are acceptable and the denominations of the coins and counting coins, a coin stacking section having a pair of stacking drums for stacking a predetermined number of coins therein, a plurality of wrapping rollers for winding a wrapping material around coins stacked in the coin stacking section, and a pair of upper and lower crimp claws for crimping upper and lower edge portions of the wrapping material wound around the stacked coins, the rotating speed of the wrapping rollers and the moving speed of the crimp claws being adjustable in accordance with the denomination of coins to be wrapped.
In this coin wrapping machine, coins fed onto the rotatable disk are fed one by one into the coin passage by the centrifugal force produced by the rotation of the rotatable disk and whether or not coins are acceptable and the denomination of coins are discriminated, and the number of coins is counted by the discriminating and counting means. The coins are then fed into the coin stacking section and stacked between the pair of stacking drums as the pair of stacking drums are rotated. The thus stacked coins are delivered to a location among the plurality of wrapping rollers and held between the plurality of wrapping rollers. The wrapping rollers are rotated so as to rotate the stacked coins while the wrapping material is fed to a location between the wrapping rollers and the stacked coins, whereby the wrapping material is wound around the stacked coins. Afterward, the pair of crimp claws is actuated so as to crimp the upper and lower edge portions of the wrapping material, thereby producing a wrapped coin roll.
This coin wrapping machine is further provided with a speed setting means for setting the rotating speed of the wrapping rollers and the moving speed of the crimp claws in accordance with the denomination of coins to be wrapped so that not only circular coins but also polygonal coins can be wrapped. More specifically, in the case where the wrapping rollers are rotated for wrapping polygonal coins at the same speed as that for wrapping circular coins, when stacked polygonal coins are rotated between the plurality of wrapping rollers, the contact pressure between the stacked coins and the circumferential surfaces of the plurality of wrapping rollers in contact therewith varies due to the ups and downs on the circumferential surfaces of the polygonal coins, whereby the stacked coins are sometimes vibrated out of their proper orientation to the point of flying out between the wrapping rollers. Therefore, in order to prevent stacked polygonal coins from being vibrated, this coin wrapping machine is constituted so that when stacked polygonal coins are to be wrapped, the rotating speed of the wrapping rollers is set lower than when circular coins are to be wrapped.
However, in this coin wrapping machine, since the rotating speed of the rotatable disk, the transporting speed of transporting belt and the rotating speed of the pair of stacking drums are fixed even for coins having different shapes, diameters, thickness and the like, coins sometimes cannot be stacked in the coin stacking section in a desired manner and, therefore, it is sometimes difficult to efficiently and desirably wrap stacked coins.
More specifically, if the rotating speed of the rotatable disk is constant for coins having small diameters, since a greater number of coins are fed into the coin passage per unit time as compared with coins having large diameters, coin jamming sometimes occurs so that coins cannot be stacked in the coin stacking section in a desired manner. On the other hand, in the case where coins having large diameters are stacked, since the coin weight is great, if coins are transported in the coin passage by the transporting belt at the same speed as that for small coins, they sometimes cannot be stacked between the pair of stacking drums in the coin stacking section due to their inertia force and, therefore, cannot be stacked in a desired manner. Further, in the case where thicker coins are stacked, since the amount of rotation of the pair of stacking drums required for stacking one coin becomes great, if the transporting speed of the transporting belt is the same as that for thin coins, coin jamming sometimes occurs between the pair of stacking drums. Moreover, in the case where the rotating speed of the wrapping rollers is set lower than when circular coins are to be wrapped as in the conventional coin wrapping machine when stacked polygonal coins are wrapped, if the transporting speed of the transporting belt is the same as that for circular coins, coin jamming sometimes occurs between the pair of stacking drums.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a coin wrapping machine which can stack and wrap coins having different shapes, diameters, thickness and the like efficiently and as desired.
The above and other objects of the present invention can be accomplished by a coin wrapping machine comprising denomination setting means for setting a denomination of coins to be wrapped, a rotatable disk for feeding coins toward a coin passage by centrifugal force produced by the rotation thereof, rotatable disk driving means for rotating the rotatable disk, transporting belt means for transporting the coins fed into the coin passage by the rotatable disk along the coin passage, transporting belt driving means for driving the transporting belt means, counting means disposed in the coin passage for counting the number of coins having the denomination set by the denomination setting means, and coin stacking means for stacking a predetermined number of coins whose number has been counted, said coin wrapping machine further comprising coin wrapping means comprising a plurality of wrapping rollers for holding the coins stacked by the coin stacking means therebetween and rotating them around their longitudinal axis to wind a wrapping material around a circumferential surface of the coins stacked by the coin stacking means, wrapping roller driving means for driving the wrapping rollers, a pair of crimp claw means for approaching the coins stacked by the coin stacking means and around which the wrapping material is wound from upper and lower locations and crimping upper and lower edge portions of the wrapping material, crimp claw means driving means for moving the pair of crimp claw means, and driving speed control means for controlling the rotatable disk driving means, the transporting belt driving means, the wrapping roller driving means and the crimp claw means driving means based on the denomination of the coins set by the denomination setting means, thereby controlling the rotating speed of the rotatable disk, the driving speed of the transporting belt means, the rotating speed of the wrapping rollers and the moving speed of the crimp claw means driving means.
According to the present invention, the rotation speed of the rotatable disk and the driving speed of the transporting belt means can be controlled in accordance with the diameters of coins. Therefore, in the case where the diameter of coins is small, it is possible to prevent feed-out of such a large number of coins into the coin passage that the coins jam in the coin stacking section, and in the case where the diameter of coins are large and the coin weight is great, it is possible to prevent the coins from failing to be stacked at a portion between the pair of stacking drums in the coin stacking section due to their inertia force. Further, accor

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