JPH032309Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a two-level stacking device for mahjong tiles in an automatic mahjong table.

More specifically, after finishing a game on the top of the mahjong table, the mahjong machine is installed in the machine frame below the table through a droplet that can be opened and closed in the center of the table. The mahjong tiles are dropped into the tile washing hopper of an automatic tile building device, arranged in a certain posture from the tile washing hopper, and sent out by a delivery conveyor. This invention relates to improvements to a double stacking device for feeding into an alignment device.

At an automatic mahjong table, the means for stacking mahjong tiles in a fixed posture, which are sent out from a tile washing hopper by a delivery conveyor, into a two-tiered state has conventionally been carried out in front of the front end of the delivery conveyor in the delivery direction. A shelf board with a width on which mahjong tiles can be placed is placed at a position lower than the thickness of the mahjong tiles with respect to the conveyance surface of the delivery conveyor, and the front end side of the shelf board in the delivery direction is provided. A weir plate is provided vertically at the position to stop the mahjong tiles sent above the shelf board by the above-mentioned delivery conveyor at a position above the shelf board. The mahjong tiles that have been sent upward are blocked by the collision between the front end of the tiles and the abutting surface of the weir board, and fall onto the top surface of the shelf board, and the mahjong tiles that have fallen onto this shelf board. The next mahjong tile is sent out on top of the tile, creating a double stack.

However, with this method, when the mahjong tiles sent out by the delivery conveyor are sent at intervals, the mahjong tiles are stacked in two layers relatively reliably, and the mahjong tiles are stacked on the shelf board. When the mahjong tiles are stacked in two tiers, they are pushed into the alignment device by the operation of the pushing head of the pushing device, but the mahjong tiles sent out by the delivery conveyor are lined up side by side with no gaps. When it is sent out in a continuous band,
When mahjong tiles sent above the shelf board hit the abutting surface of the weir board and fall, they fall onto the shelf board in a standing position, making it impossible to stack them in two tiers and causing a blockage. When the front end of the mahjong tile sent above the shelf hits the matching surface of the weir board,
As a result, before falling to the top surface of the shelf board, the mahjong tiles of the next or lower ranks that are sent in succession are pressed toward the weir board, and the tiles on the delivery conveyor that are sent in succession are There is a problem in that the mahjong tiles and the weir board become bridge-like, preventing them from falling toward the top surface of the shelf board.

The present invention was made to solve this problem, and the mahjong tiles are sent out from the tile washing hopper side by a delivery conveyor without providing an operating mechanism to move the Mahjong tiles downward. Even if mahjong tiles are sent in a row,
The object of the present invention is to propose a new means for reliably performing a two-tier stacking operation.

To achieve this purpose, the device for stacking mahjong tiles in two levels in an automatic mahjong table according to the present invention is as follows:
In front of the front end in the sending direction of the delivery conveyor that sends out the mahjong tiles arranged in a certain posture from the tile washing hopper side, a shelf board with a width that supports the mahjong tiles is installed so that the thickness of the mahjong tiles is wider than the conveyance surface of the delivery conveyor. In a two-tiered mahjong tile stacking device for an automatic mahjong table, which is installed at a height corresponding to The present invention is characterized in that a magnet embedded inside the mahjong tiles or a magnet for attracting iron pieces is installed on the upper surface of the mahjong tiles or on the lower side of the abutting surface of the weir plate.

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a top view of an automatic mahjong table A in which the present invention can be implemented, and 1 shows a mahjong table formed in the shape of a square plate. The mahjong table 1 is supported on the top surface of a machine frame 2 (FIG. 2) formed in the shape of a square box in the form of a lid plate that closes the opening on the top side of the machine frame 2 (a third (Fig.), mahjong tiles arranged in a tile-built state by automatic tile-laying device B (Fig. 2) installed in the machine frame 2 are placed at a position slightly closer to the center from each edge of the four peripheries. A window hole 10 is provided for allowing a lift 3 to appear on the top surface of the mahjong table 1, and a window hole 10 is provided in the center for displaying the mahjong tiles after a game of mahjong table 1.
A drop hole 11 is provided for dropping the tiles toward the automatic tile building device B below, and the drop hole 11 is closed by a lid plate 12 that can be opened and closed.

The automatic tile building device B includes a tile washing hopper a that receives the mahjong tiles dropped from the above-mentioned drop opening 11;
A discharging device b that washes the mahjong tiles received in the tile washing hopper a and discharges them while maintaining a constant posture.
a delivery conveyor d that receives the mahjong tiles ejected by the delivery device b and sends them out toward the alignment device c; and a two-tier stacking device e disposed in front of the front end of the delivery conveyor d in the delivery direction. The mahjong tiles stacked in two tiers by the two-tier stacking device e are transferred to the aforementioned alignment device c.
and an extrusion device g that pushes out the mahjong tiles, which have been arranged in adjacent positions of each lift 3 by the alignment device c, in a laid-out state so as to be transferred to the upper surface of the lift 3.

A discharging device b for discharging mahjong tiles received in the tile washing hopper a includes a rotary table 41 disposed at the bottom of the tile washing hopper a to rotate with an inclined rotation axis Z by an inclined support shaft 40. , is formed into a ring shape to hold a magnet on the lower surface, and is pivoted above the upper opening of the tile washing hopper a so as to rotate along a horizontal plane, so that an iron piece or The mahjong tile P acts on the magnet.
It consists of an adsorption ring 42 that adsorbs the material to the lower surface side.

In addition, the delivery conveyor d, which receives the mahjong tiles from the delivery device b, has a conveyor belt 50 that rotates endlessly.
On the lower surface side of the suction ring 42 and on the side away from the upper surface of the rotary table 41,
It is provided tangentially to the suction ring 42, and is configured to take over the mahjong tiles P carried out by the suction ring 42 and send them out toward the starting end of the above-mentioned alignment device c.

The two-tier stacking device e stacks mahjong tiles sent out from the front end 50a, which is the terminal end in the transport direction of the delivery conveyor d, in two tiers.
As shown in FIG. 5, a shelf board 60 with a width on which the mahjong tiles P are placed is installed at a position in front of the conveyor d and lower than the conveyance surface of the conveyor d by the thickness of the mahjong tiles P. At the same time, a weir plate 70 is arranged at the front end side position of the shelf board 60 in the delivery direction, and the mahjong tiles P sent by the delivery conveyor d are
When the mahjong tiles P are delivered above the shelf board 60 from the front end 50a of the conveyor d, the front end side of the mahjong tiles P in the delivery direction is the side surface of the weir plate 70 opposite to the front end 50a of the delivery conveyor d. The mahjong tile P hits the forming abutting surface 70a and falls onto the shelf board 60, and the next mahjong tile P is sent out above the mahjong tile P, so that the mahjong tile P is stacked in two tiers. about,
Although it is the same as the conventional means, a magnet M is installed on the upper surface side of the shelf board 60 to attract the magnet or iron piece buried inside the mahjong tiles P mentioned above. As shown in FIG.
may be configured. In addition, the magnet or piece of iron buried inside the mahjong tiles P is a magnet K.
And, as shown in Fig. 7, its magnetic pole N.
When the magnet S is buried so as to be divided into an upper surface side and a lower surface side, the magnet M provided on the upper surface side of the shelf board 60 or so as to constitute the shelf board 60 is as shown in FIG. As shown in FIG.

Further, as shown in FIG. 8, the magnet M may be installed on the lower side of the abutting surface 70a of the weir plate 70 near the shelf board 60. In this case as well, the magnetic poles N and S of the mahjong tile P are vertically opposite to the magnetic poles N and S of the magnet K buried inside the mahjong tile P, as shown in FIG.

In addition, in the illustrated example device, PH is
When the mahjong tiles P and P are stacked in two tiers on the shelf board 60, it is detected and the push head 80 of the push device f is activated to move the stacked mahjong tiles P and P to the alignment device c. This is a photo sensor that controls the pushing device f to push into the starting end.

Next, to explain the operation, the two-tiered mahjong tile stacking device in the automatic mahjong table according to the present invention configured as described above is such that the mahjong tiles P conveyed by the delivery conveyor d are stacked at the front end of the delivery conveyor d. 5
When the mahjong tile P is sent above the shelf board 60 one step lower from 0a, the magnet or piece of iron buried inside the mahjong tile P is installed on the upper surface of the shelf board 60 or the lower side of the abutment surface 70a of the weir board 70. While being held in a certain posture by being attracted to the magnet M,
You will be drawn downwards. From this, even if the mahjong tiles P are sent out in a continuous state on the delivery conveyor d, the mahjong tiles P will be reliably moved downward, and the mahjong tiles P will collide with the weir plate 70. It acts to prevent a bridge-like state from being bridged between the mating surface 70a and the mahjong tiles that are continuous at the rear. In addition, the downward movement of the sent-out mahjong tiles P becomes faster, so the sent-out mahjong tiles form the aforementioned bridge shape and are further pushed into the folded position. It acts to prevent such phenomena.

Since this action is achieved by utilizing the attraction action of the magnet M, there is no need for a mechanism for forcibly moving the mahjong tiles P, so this action can be achieved without making the mechanism complicated.

Therefore, according to the means of the present invention, since the magnet is installed on the upper surface of the shelf board or the lower part of the abutting surface of the weir board, the mahjong tiles P being sent out are attracted downward and the bridge phenomenon occurs. Since the mahjong tiles do not fall into a standing position and the mahjong tiles do not collapse into a standing position, it is possible to reliably perform double stacking. Further, an effect can be obtained in which there is no need to use a complicated moving mechanism to break the bridging phenomenon.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view of an automatic mahjong table that can implement the present invention, Fig. 2 is a schematic plan view of the automatic tile laying device mentioned above, Fig. 3 is a schematic longitudinal sectional front view of the same automatic tile laying device, and Fig. 4 is a plan view of the main parts of the automatic tile stacking device shown above, and FIG. 5 is a vertical side view of the two-tier stacking device shown above.
FIG. 6 is an explanatory diagram of the operation of the above device, FIG. 7 is a longitudinal cross-sectional side view of the main parts of the same device, FIG. 8 is a longitudinal cross-sectional side view of another embodiment of the device, and FIG. 9 is a longitudinal cross-section of the main parts of the above device. FIG. Explanation of drawing symbols, A... Automatic mahjong table, B... Automatic tile building device, a... Tile washing hopper, b... Discharging device, c... Aligning device, d... Delivery conveyor, e...
...Two-tier stacking device, f... Pushing device, g... Pushing device, 1... Mahjong table, 2... Machine frame, 3... Lift, 10... Window hole, 11... Drop opening, 12... Lid plate, 40... Support shaft, 41... Rotary table, 42
...Adsorption ring, Z...rotation axis, P...mahjong tile, M/K...magnet, PH...photo sensor, 5
0... Conveyor belt, 50a... Front end, 60...
Shelf board, 70... Weir board, 70a... Matching surface, 80...
...Push head.

Claims (1)

[Scope of utility model registration request] In front of the front end in the sending direction of the delivery conveyor that sends out the mahjong tiles arranged in a certain posture from the tile washing hopper side, a shelf board with a width that supports the mahjong tiles is installed so that the thickness of the mahjong tiles is wider than the conveyance surface of the delivery conveyor. In a two-tiered mahjong tile stacking device for an automatic mahjong table, which is installed at a height corresponding to A two-tier mahjong tile stacking device for an automatic mahjong table, characterized in that a magnet buried inside the mahjong tiles or a magnet for attracting iron pieces is installed on the upper surface or the lower side of the abutting surface of the weir plate. .