JPH0441896Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is an automatic mahjong table in which mahjong tiles sent out by a conveyor from a tile washing hopper in a tile supply section are stacked in two layers and sent to an alignment section. This invention relates to improvements to a device for stacking tiles in two stages for feeding.

[Prior Art] A two-tiered tile stacking device in a conventional automatic mahjong table has a device in front of the terminal end in the conveyance direction of a conveyor that carries out mahjong tiles arranged in a fixed posture in a tile supply section.
Place a pedestal that receives the mahjong tiles released from the end of the conveyor at a height position where the pedestal surface is aligned with the conveyance surface of the conveyor and a height position lower than the conveyance surface of the conveyor by approximately the thickness of the mahjong tiles. The first mahjong tile sent out from the end of the conveyor is moved onto a raised pedestal at a height that is aligned with the conveyor's conveyance surface. When the mahjong tile is placed on the conveyor, the pedestal is lowered to the lowered position by the control operation of the sensor that detects this, and the top surface of the first mahjong tile on the pedestal is brought to a height that is aligned with the transport surface of the conveyor. The second mahjong tile sent by the conveyor moves on top of the first mahjong tile and overlaps in two tiers, resulting in a two-tier stack, and this two-tier stack is placed on one side of the pedestal. The pushing device located on the pedestal pushes it out to the alignment section located on the other side of the pedestal, and the empty pedestal rises again to the raised position and picks up the first mahjong tile sent out from the conveyor. Then, the above-mentioned operation is repeated to perform two-stage stacking.

[Problems to be solved by the invention] In the conventional two-tier tile stacking device, the pedestal supported the mahjong tiles and moved up and down, so each time it was activated, the machine
There was a loud crunching sound, and the mahjong tiles became damp due to the oil from the fingertips from being used in the game. When the mahjong tile moves downward due to the lowering of the pedestal, it connects with the side of the second mahjong tile that is sent in succession, making it difficult to follow the pedestal and move downward. This causes a problem in that the mahjong tiles overlap on the pedestal in an irregular state, resulting in a jammed tile phenomenon.

In order to stack the mahjong tiles in two layers on the pedestal without moving the pedestal that supports the mahjong tiles, the conveyor that conveys the mahjong tiles should be placed so that the end side of the conveyor in the conveying direction is on the pedestal. All you have to do is raise and lower the mahjong tiles by the height corresponding to the thickness of the mahjong tiles. Eventually, another problem arises that causes problems in the conveyance of mahjong tiles.

The present invention was devised to solve these problems occurring in the conventional means.The present invention was made in order to solve these problems occurring in the conventional means. To provide a new means by which the mahjong tiles can be stably conveyed by a conveyor while stacking the mahjong tiles in two layers on the top surface of the stand.

[Means for Solving the Problems] In the present invention, as a means for achieving this object, the end portion of the conveyor in the conveyance direction that conveys the mahjong tiles arranged in a fixed posture in the tile supply section is provided. A pedestal is installed at the front position, and the pedestal surface is located lower than the conveyance surface of the conveyor by a height corresponding to approximately the thickness of the mahjong tiles, and the conveyor has a cradle placed at the end side of the conveyor in the conveyance direction. Connecting end portions formed short enough to support mahjong tiles are provided, and the end portions are placed at a height that is aligned with the base surface of the pedestal and at a height approximately equivalent to the thickness of the mahjong tile from the base surface of the pedestal. The conveyor is supported so that it can be raised and lowered so that it can be moved up and down, and the terminal end of the conveyor that is raised and lowered is controlled to go up and down in conjunction with the operation of the pushing head of a pushing device installed on the side of the pedestal. This paper proposes a two-tier stacking device for tiles in an automatic mahjong table.

[Example] Next, embodiments will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the overall outline of an automatic mahjong table A in which the present invention can be implemented. In the figure, 1 is a machine frame formed in the shape of a square flat box, and 2 is an open opening on the top side of the machine frame 1. A mahjong table 20 is formed on a top plate with a lid that can be opened and closed, and a mahjong tile drop opening 20 is opened in the center of the mahjong table 2 and is closed by an opening/closing lid 21.
2... are four lifting platforms 3 installed around the mahjong table 2.
It shows a window hole where ... appears.

FIG. 2 is a plan view showing an outline of the mahjong tile arrangement device installed in the machine frame 1. In the figure, a indicates a tile supply section, and 4 indicates a tile supply section a in which the tiles are arranged in a fixed posture. A conveyor for carrying out the mahjong tiles, b indicates a two-tier tile stacking device for stacking the mahjong tiles carried out by the conveyor 4 in two stacks, and c indicates a tile alignment section.

The tile supply section a includes a tile washing hopper that receives mahjong tiles that are dropped from a slot 20 formed in the center of the mahjong table 2, a rotary table provided on the bottom plate at the bottom of the tile washing hopper, and an open opening at the top of the tile washing hopper. This is a normal type consisting of an attached suction ring, and is omitted by the chain line circle.

The two-tiered tile stacking device b consists of a terminal end 4a of the conveyor 4, a pedestal 5 disposed in front of the terminal end 4a, and a pushing device 6 disposed on one side thereof.

The tile alignment section c includes a first guideway 70, a second guideway 71, and a second guideway 71 arranged in parallel with each of the four lifting platforms 3 supported by the machine frame 1 so as to be located on the outer periphery of the tile supply section a. Four taxiways, the third taxiway 72 and the fourth taxiway 73, and three arcuate connecting roads 74, 74, 74 that connect these taxiways 70, 71, 72, 73.
As a result, a square enclosure-shaped guideway y having an open part w is formed, and within the guideway y, a carrier z that is rotated by a chain 75 provided on the lower surface of the guideway y is arranged. and each of the first to fourth taxiways 7
0, 71, 72, 73 are provided with a tile extrusion device 76 for extruding mahjong tiles aligned thereto onto each elevating table 3. The terminal end 4a of the conveyor 4, the pedestal 5, and the pushing device 6 constituting the two-tiered stacking device b are located at the open portion w of the guideway y, and are stacked in two tiers on the pedestal 5. The pushing device 6 sequentially pushes the mahjong tiles into the first guiding path 70 of the tile alignment section c.

Next, FIGS. 3 to 8 show details of the tile stacking device b in two stages.

As shown in FIGS. 3 and 4, the conveyor 4 is driven by a motor M provided on the base plate 10 of the machine frame 1.
A long conveyor frame 40 is supported by a support frame 11 which is integrally continuous with the frame of the conveyor frame 40, and conduction pulleys 41 and 42 are respectively pivotally supported at both ends of the frame in the longitudinal direction. The provided conduction pulleys 43 and conveyor belts 44 are arranged in three rows in parallel and rotated in the direction of the arrow in Fig. 4 by the drive of the motor M.
The left and right outer ends of the spindles 42a of the conduction pulleys 42, which receive the terminal ends of the conveyor belts 44 in the conveying direction, are formed short enough to support one mahjong tile p, as shown in FIG. The base end of the sub-conveyor frame 40a is rotatably supported vertically,
By pivotally supporting a conduction pulley 45 at the tip thereof and passing the sub-conveyor belt 44a around the conduction pulley 45 and the conduction pulley 42,
A sub-conveyor frame 40 is installed on the terminal side in the conveyance direction.
The configuration is such that a terminal end portion 4a formed by a and a sub-conveyor belt 44a is connected. The terminal end portion 4a is connected to the sub-conveyor frame 40.
By vertically rotating a, the conveyor belt 44 can be moved to a position where the conveying surface of the conveyor belt 44 is extended, as shown by the solid line in FIG. It is designed to be switched.

The pedestal 5 disposed in front of the terminal end 4a of the conveyor 4 is connected to the sub-conveyor belt 4 of the conveyor 4.
4a is located in the extending direction of the conveyor belt 44 as shown by the solid line in FIG.
It is installed so that the table surface 50 is aligned at a height lower than the conveying surface of the terminal end 4a by approximately the thickness of the mahjong tiles. When the terminal end portion 4a of the conveyor 4 is in a downwardly moved state as shown by the chain line in FIG.

A pushing device 6 that pushes the mahjong tiles p stacked in two layers on the table surface 50 of the pedestal 5 into the tile alignment section c is attached to a bracket 60 fixedly attached to the base plate 10 of the machine frame 1 with guides 61... horizontally, and the push-in head 62 is placed in a retracted position to the side of the pedestal surface 50 of the pedestal 5 as shown in FIGS. The push-in head 62 is supported so as to freely slide between the push-out position and the upwardly pushed position, and the pivoting end of an arm 63 provided on the bracket 60 so as to swing about a fulcrum shaft 63a is attached to the push-in head 62. A gear 64 is connected to the arm 63 and is pivotally supported on the bracket 60 via a support shaft 64a.
A roller 66 provided on the side surface of a cam wheel 65 that rotates integrally with the motor M2 is pressed and connected, and the gear 64 meshes with the gear 67 provided on the output shaft of the motor M2 and is driven to rotate, thereby causing the arm 63 to rotate. In FIG. 7, the extrusion head 62 swings back and forth from side to side to repeat the operation from the position shown in FIG. 6, through the position shown in FIG. 8, and back again to the position shown in FIG.

The operating mechanism for operating the push-in head 62 is provided with a short arm 81 below the cam ring 65 that rotates from side to side in FIG. 7 by means of a support shaft 80. is connected to a cam surface 65a formed on the circumferential surface of the cam ring 65 via rollers 82, and the support shaft 80 is directed toward a lateral position of the terminal end 4a of the conveyor 4, as shown in FIG. and attach the proximal end of the lever 83 to the extended part,
By connecting the rotating end of the lever 83 to a connecting piece 85 provided on the sub-conveyor frame 40a at the terminal end 4a of the conveyor 4 via a connecting rod 84, the camshaft 65 is driven by the operation of the motor M2. When the pushing head 62 is operated, the terminal end 4a of the conveyor 4 is rotated up and down about the support shaft 42a in conjunction with the operation of the pushing head 62.

That is, as shown in FIG.
When the motor M2 is driven to rotate the cam wheel 65 one turn clockwise from the backward position,
During the rotation in which the rollers 82 are displaced from the position A to the position B and the pushing head 62 completes the stroke of moving forward toward the upper surface 50 of the pedestal 5, the terminal end of the conveyor 4 4a is held in the upward position, and when the push-in head 62 begins to move backward as the rollers 82 move to the position C, the terminal end 4a of the conveyor 4 is moved downward, and the rollers 82 move to the position C. When the push-in head 62 completes its backward stroke, the downward movement of the terminal end 4a of the conveyor 4 is completed, and the operation of the push-in head 62 in which the rollers 82 are displaced from the position C to the position A is considered as play. During this rotation, the terminal end 4a of the conveyor 4 is returned to the completely lowered position.

This operation is further carried out by the photosensors S1 and S2 provided on the pedestal 5, so that the first mahjong tile is placed on the pedestal surface 50 of the pedestal 5, and the roller 82 moves from the position C to the position A. The motor M2 is operated until the mahjong tile is displaced to , and the terminal end 4a of the conveyor 4 is moved from the downward position to the upward position, whereby the mahjong tile sent by the conveyor 4 becomes the first mahjong tile. When the roller 82 is placed on the top, the motor M2 is driven so that the roller 82 rotates from the position A to the position C, and the pushing head 62 is moved forward and backward. 4a is controlled to return to the lowered position again.

In the illustrated embodiment, reference numeral 51 denotes a base plate forming one half of the base surface 50 of the pedestal 5, which is made of spring steel. When passing across the carrier z, the support portion 51a is bent to the side when the carrier z comes into contact with the support portion 51a to allow the carrier z to pass. Further, reference numeral 90 denotes a separation plate which is fixedly supported on the machine frame 1 by being arranged above the pedestal 5 and slightly above the first mahjong tile placed on the pedestal surface 50 of the pedestal 5. When the first mahjong tile is placed on the mahjong tile, the motor M2 is driven by the operation of the photo sensor S1, and when the terminal end 4a of the conveyor 4 moves upward, the mahjong tile is positioned following the conveyance surface of the terminal end 4a. It acts to prevent the second mahjong tile from adhering to the first mahjong tile and lifting the first mahjong tile.

The embodiment device constructed as described above operates as follows.

When there are no mahjong tiles on the table surface 50 of the pedestal 5, the terminal end 4a of the conveyor 4 that carries out the mahjong tiles supplied from the tile supply section a moves downward to a position where it is aligned with the table surface 50 of the pedestal 5. be. And the base 50
When the first mahjong tile is sent out onto the conveyor 4, the photo sensor S1 that detects this activates the motor M2 for driving the pushing device 6, causing the cam wheel 65 to rotate a little. The terminal end portion 4a is moved upward to a position aligned with the upper surface of the first mahjong tile, and the mahjong tiles being carried out are delivered onto the first mahjong tile and stacked in two layers. The motor M2 is actuated by the photosensor S2 that detects this, and the pushing head 62 performs a pushing operation to push the two-tiered mahjong tiles on the pedestal 50 into the tile alignment section c. Interlockingly, the end portion 4a moves downward and returns to the height position where it is aligned with the table surface 50 of the pedestal 5, and the first tile is sent out onto the table surface 50. This operation is repeated to send the mahjong tiles one after another. They will be stacked in two layers.

[Effect of the invention] As explained above, the two-tiered tile stacking device in the automatic mahjong table according to the invention receives the mahjong tiles p that are arranged in a certain posture and carried out by the conveyor 4 from the tile supply section a. The cradle 5 is its base 5
0 is formed and fixed to the machine frame 1 so that it is located lower than the terminal end side of the conveyor 4 by the thickness of the mahjong tile p, and the conveyor 4 has one mahjong tile A terminal end 4a formed short enough to support p is connected and provided, and the terminal end 4a
is supported so as to be movable up and down so that it can be switched to a height position that is aligned with the base surface 50 of the pedestal 5, and its terminal end 4a is moved up and down in conjunction with the operation of the pushing head 62 of the pushing device 6. Since the mahjong tiles are stacked in two layers on the table surface 50 of the pedestal 5, the noise generated by the pedestal 5 moving up and down while supporting the mahjong tiles p is reduced. Also, due to the upward movement of the end of the conveyor, which is performed by sending the first mahjong tile from the end of the conveyor onto the surface of the cradle, the mahjong tile is continuously sent to the first tile. This occurs when the second mahjong tile is pulled upwards from the first mahjong tile sent onto the surface of the pedestal, causing the mahjong tiles to stick to each other. This effectively eliminates the phenomenon of tile jam. Moreover, since the conveyor 4 that conveys the mahjong tiles P moves up and down only the short terminal end 4a connected to its terminal end side, the mahjong tiles P... conveyed by the conveyor 4 are moved midway through the conveyance. It will now be transported stably without jumping around.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view of the entire automatic mahjong table that can implement the present invention, Fig. 2 is a schematic plan view of the tile aligning device of the same, Fig. 3 is a plan view of the same conveyor, and Fig. 4 is the same as the above. 5 is a vertical sectional side view of the main part of the above, Fig. 6 is a plan view of the main part of the above, Fig. 7 is a front view of the main part of the above, and Fig. 8 is a push-in head of the main part of the above. FIG. 9 is a plan view of the folded state, and FIG. 9 is a perspective view of the main parts of the same. Explanation of drawing symbols, A... Automatic mahjong table, a... Tile supply unit, b... Two-tier stacking device, c... Tile alignment unit,
m...output shaft, p...mahjong tiles, w...opening part, y
... Taxiway, z ... Carrier, M ... Motor, 1 ... Machine frame, 10 ... Base plate, 11 ... Support machine frame, 2 ... Mahjong table, 20 ... Drop opening, 21 ... Opening/closing Lid, 22... Window hole, 3... Lifting platform, 4... Conveyor, 4a... Terminal part, 40... Conveyor frame, 40a... Sub-conveyor frame, 41, 4
2, 43, 45...Conduction pulley, 42a...Spindle, 44...Conveyor belt, 44a...Sub conveyor belt, 5...Base, 50...Base surface, 51
... Base plate, 51a ... Support part, 6 ... Pushing device,
60...Bracket, 61...Guide rod, 62...
... Pushing head, 63 ... Arm, 63a ... Fulcrum shaft, 64 ... Gear, 64a ... Support shaft, 65 ... Camshaft, 66 ... Roller, 70 ... First guideway, 71
...Second taxiway, 72...Third taxiway, 73...
4th taxiway, 74... connecting road, 75... chain,
76... Extrusion device, 80... Support shaft, 81... Arm, 82... Roller, 83... Lever, 84... Connection rod, 85... Connection piece, S1... Photo sensor.

Claims (1)

[Scope of utility model registration request] Mahjong tiles p arranged in a certain posture in tile supply section a
A pedestal 5 is installed at a position in front of the terminal end 4a in the conveying direction of the conveyor 4 that conveys the mahjong tiles. , the conveyor 4 has a terminal end 4a formed short enough to support one mahjong tile connected to its terminal end side in the conveying direction, and the terminal end 4a is connected to the base surface 50 of the pedestal 5. The conveyor 4 is supported so that it can be raised and lowered so that it can be switched between a height position aligned with the height position and a position higher than the base surface 50 of the pedestal 5 by a height corresponding to approximately the thickness of the mahjong tile p, and the terminal end of the conveyor 4 that moves up and down. A two-tiered tile stacking device for an automatic mahjong table, in which a part 4a is controlled to rise and fall in conjunction with the operation of a pushing head 62 of a pushing device 6 installed on the side of the pedestal 5.