JPH0422777Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention is based on an automatic mahjong table in which mahjong tiles are arranged in a certain posture from the tile wash hopper side and sent out one by one by a conveyor, and the mahjong tiles are stacked in two layers, and the mahjong tiles stacked in two layers are The present invention relates to a two-stage sorting device that pushes the objects out to the aligning section in the same state. More specifically, the two-stage sorting device in the automatic mahjong table that is the object of the present invention handles the mahjong tiles that are arranged in a certain posture from the tile washing hopper side and sent out one by one by the conveyor. By facing the end of the mahjong tiles, the mahjong tiles are received by a cradle that is movable up and down, and at that time, the cradle is raised and lowered to switch between a raised position and a lowered position corresponding to the thickness of the mahjong tiles. The mahjong tiles are piled up in two tiers, and the two mahjong tiles stacked in two tiers on this holder are moved to the cradle by the operation of the extrusion member of the extrusion mechanism, which is placed adjacent to the cradle. The mahjong tiles are pushed out from the top surface as if being transferred to the alignment section, and by repeating this operation, the mahjong tiles sent out by the conveyor are stacked two at a time on the top surface of the receiving table, and then pushed out one after another to the alignment section. It is in the form of

[Conventional technology]

In the conventional two-stage mahjong tile sorting device for the automatic mahjong table described above, a receiver placed facing the end of the conveyor is placed at a height that receives the mahjong tiles sent out from the conveyor. position and
The upper surface of the received mahjong tiles becomes the actual upper surface of the cradle, and the height position is one step lower. The extrusion mechanism that operates the extrusion member to extrude two mahjong tiles to the alignment section is driven by a separate solenoid or motor, respectively.

[Problems that the idea should solve]

The two-tier sorting device in the conventional automatic mahjong table configured in this way has a vertical movement mechanism that moves the pedestal up and down, and an alignment section that moves two mahjong tiles stacked in two layers on the top of the pedestal. It is difficult to adjust the extrusion mechanism to operate correctly at a predetermined timing, and the structure for this purpose is complicated. The present invention was devised to solve these problems that occur with conventional means, and includes a vertical movement mechanism that moves the pedestal up and down between a raised position and a lowered position, and a The extrusion mechanism that extrudes mahjong tiles stacked in two tiers to the alignment section is driven by a single drive source without complicating the structure, and the vertical movement mechanism and the extrusion mechanism are combined into a vertical movement mechanism. When the mahjong tiles are stacked in two layers on the top of the holder,
The purpose of the present invention is to propose a new means for operating at a predetermined timing so that the pushing mechanism operates and pushes out two mahjong tiles on the top surface of the cradle to the alignment part. It is something.

[Means to solve the problem]

In the present invention, as a means to achieve this objective, the bracket of the holder that receives the mahjong tiles sent by the conveyor from the tile washing hopper side is movable up and down on the supporting machine frame installed in the machine frame. A rotating shaft rotated by a motor is supported on the supporting machine frame, a cam foil is attached to the rotating shaft, and a cam foil is mounted near the cam foil.
An operating arm of a vertical movement mechanism that is connected to the bracket of the cradle to raise and lower the bracket is arranged so that the mahjong tiles are pivoted on the support frame so as to be able to swing up and down, and the mahjong tiles are received on the cradle. The actuating member of the extrusion mechanism that pushes out to the alignment part is arranged and supported on the support frame so as to be able to slide left and right, and the actuating arm is attached to the cam surface attached to the cam foil, so that it can be moved up and down by the rotation of the cam foil. This invention proposes a two-stage feeding device for an automatic mahjong table, which is connected to swing back and forth, and in which the actuating member is connected to a link shaft mounted on the cam foil, and to move back and forth from side to side by rotation of the cam wheel. be.

【Example】

Next, an example of implementation will be described in detail with reference to the drawings. FIG. 1 is a schematic top view of an automatic mahjong table A in which the present invention can be implemented, and in the same figure, reference numeral 1 indicates a mahjong table formed in the shape of a square plate. The mahjong table 1 has a machine frame 2 (FIG. 2) formed in a square box shape on the top surface.
It is supported in the form of a lid plate that closes the opening on the top side, and the tiles are arranged by a tile alignment device B installed in the machine frame 2 at a position slightly closer to the center from each edge of the four peripheries. A window hole 11 through which a lift 10 that lifts the mahjong tiles arranged in a proper manner onto the top surface of the mahjong table 1 appears...
... is provided, and a drop hole 12 is provided in the center portion for dropping mahjong tiles after one game to the tile washing hopper a of the tile alignment device B below the mahjong table 1. The drop port 12 is closed with a cover plate 13 that can be opened and closed. The tile alignment device B includes a tile washing hopper a that receives the mahjong tiles dropped from the above-mentioned drop slot 12, and a tile washing hopper a that washes the mahjong tiles received in the tile washing hopper a and arranges them in two stages while maintaining a constant posture. a supply section c that supplies the sorting device b; an alignment section d that sequentially receives and arranges the two mahjong tiles stacked in two layers by the two-stage sorting device b; and the alignment section d. It consists of an extrusion device e that pushes out mahjong tiles arranged in a stacked state so as to be transferred to the upper surface of the lift 10 in the lowered position. The supply section c is provided with an inclined rotation axis Z at the bottom of the tile washing hopper a by an inclined support shaft 20.
A rotary table 21 is disposed above the upper opening of the tile washing hopper a, and acts on an iron piece or a magnet buried inside the mahjong tiles P to attract the mahjong tiles P to the lower surface side. The suction ring 22 is pivoted so as to rotate along a horizontal plane, and the mahjong tiles P carried out by the suction ring 22 are placed on the lower side of the suction ring 22 on the side away from the upper surface of the rotary table 21, as described above. Although the conveyor 23 is provided to carry out the conveyor to the two-stage sorting device b, it may be configured as appropriate. Moreover, as shown in FIG. 2, the alignment part d is cleaved at one place around the four lifts 10 described above, which are arranged so as to constitute a quadrilateral enclosing frame in a plan view. An annular rail 30 with
The part along the outside of each lift 10... is each lift 1
formed and arranged so as to be parallel to and adjacent to 0...,
Although the rail 30 is configured to have a portion adjacent to each of the lifts 10, the configuration of the alignment portion d... may be arbitrary. The annular rail 30 constituting the alignment portion d... has a groove 31 extending in the longitudinal direction formed in the middle part of the width direction thereof, and an endless groove 31 is formed on the lower surface side of the annular rail 30. A chain 32 that rotates is arranged to overlap the annular rail 30 vertically and stretched over the machine frame 2, and the chain 32
An extrusion pin 33 whose upper end protrudes toward the upper surface side of the rail 30 through the groove 31 is attached to the chain 32.
Three rails are installed at intervals longer than the length of the lift 10 in the rotating direction of the conveyor 23, and in the two-stage sorting device b, the free end of the annular rail 30 facing the terminal end 23a of the conveyor 23 When the number of mahjong tiles sent sequentially from 30a to the first-place alignment section d reaches a predetermined tile-building state, the chain 32 rotates, and the push-out pin 33 moves the mahjong tiles to the first-place alignment section d. The mahjong tiles arranged in d are sequentially sent to the next arranged part d. The number of mahjong tiles lined up in the first alignment section d is counted by a photo sensor type counter provided separately, and the number of mahjong tiles lined up in the first alignment section d is counted by
By controlling the operation of the motor that drives 2,
It is controlled to send the aligned mahjong tiles to the next sorting unit in order. Next, the two-stage sorting device b according to the present invention will be explained. 4 to 6, reference numeral 4 denotes a supporting machine frame that is fixedly installed on the machine frame 2, and includes a vertical support plate 40 whose bottom part is fixed to the bottom plate 2a of the machine frame 2, and A support plate 41 having a channel shape in plan view is attached to the right half side of the front side (top side in Fig. 4).
and a support plate 42 (FIG. 6) that is attached to the left end of the front side of the support plate 40 and has a channel shape when viewed from the side. M is a motor, which is fixedly attached to the rear side of the channel-shaped support plate 41 in plan view;
It is made to protrude to the rear side of the support plate 40 through a notch-shaped window hole 43 provided in the support plate 40. m is a rotating shaft rotated by the motor M,
It is pivotally supported by a case of a reducer that is assembled integrally with the body of the motor M, and when the case of the reducer is integrally attached and fixed to the support plate 41 and the motor M, the support machine frame 4 It is supported by a horizontal shaft with its axial direction along the front-rear direction (vertical direction in FIG. 4). Reference numeral 5 denotes a cam foil attached to the rotating shaft m, which is formed into a disk shape and is attached to the rotating shaft m by fitting the boss portion 50 onto the rotating shaft m. The cam foil 5 has a seventh groove on the rear side, which is one of the front and rear sides of the cam foil 5.
As shown in the figure, when viewed from the front and back direction, a cam surface w is formed in a deformed annular groove, most of which is annular and concentric with the rotating shaft m, and a portion of which protrudes in the radial direction. A connecting shaft y, which is eccentric with respect to the axis of the rotating shaft m, is protruded forward in the shape of a crank pin from the front surface, which is a side surface of the rotary shaft m. Reference numeral 60 denotes an operating arm of the vertical movement mechanism 6 that moves up and down the pedestal 7 located outside the terminal end 23a of the conveyor 23, which is formed long in the left and right directions and is located on the rear side of the cam foil 5. The right end, which is the proximal end, is pivotally supported on the above-mentioned support plate 41 by the support shaft 61 in the front-rear direction, and the support machine frame is arranged so that the left end, which is the free end, can swing up and down. It is pivoted on 4. The actuating arm 60 is provided with a connecting shaft 62 that protrudes toward the rear side of the cam wheel 5 at a portion located above the rotating shaft m, and the shaft end of the connecting shaft 62 A bearing 63 provided on the cam wheel 5 is fitted into a cam surface w formed of an annular groove provided on the cam wheel 5, and linked to the cam surface w so that it reciprocates up and down about the support shaft 61 as the cam wheel 5 rotates. There is. and again,
The free end of the actuating arm 60 is formed into a forked shape and includes a bracket 65 that can swing vertically by a vertical guide rod 64 provided on the support plate 42. They are connected via a bearing 66 provided on a bracket 65, and as the operating arm 60 swings up and down, the pedestal 7 supported on the bracket 65 moves up and down. Reference numeral 80 denotes an operating member of the extrusion mechanism 8 that pushes out the mahjong tiles stacked in two layers on the pedestal 7 to the alignment section d.It is formed into a square board shape when viewed from the front and rear directions, and is similar to the cam foil 5 described above. Located on the front side,
It is supported so as to be slidable left and right on left and right guide rods 81, 81, which are provided in two stages, upper and lower, on the support plate 41, which is formed into a channel shape in a plan view of the support frame 4. As shown in FIG. 8, on the side of the actuating member 80 facing the cam wheel 5, a vertical fitting is provided on the side that is closer to the right of the rotation axis m of the cam wheel 5 when viewed from the rear side. Matching groove 82
However, the shaft end portion of the connecting shaft y is formed in such a shape that its lower end side is bent toward the rotating shaft m side, and is provided in this fitting groove 82 so as to protrude toward the front side of the cam foil 5. are fitted together via a bearing 83, so that the connecting shaft Y provided on the cam wheel 5 causes the actuating member 80 to reciprocate from side to side when the cam wheel 5 rotates in the direction of the arrow in FIG. It is linked with. And also, the actuating member 8
0, as shown in FIG.
A push-out member 84 facing upward is integrally connected, and by moving the push-out member 84 left and right with the left and right reciprocating movement of the actuating member 80, the push-out member 84 is stacked in two layers on the upper surface of the pedestal 7. Mahjong tiles P, P
is pushed toward the above-mentioned alignment part d. Note that S ₁ is a reflective photo sensor supported by the support plate 41 and disposed above the first side of the pedestal 7, and the mahjong tiles are sent out from the terminal end 23a of the conveyor 23 to the upper surface of the pedestal 7. , it is sensed and activated to turn on the circuit of the motor M mentioned above. When the cam wheel 5 rotates due to the operation of the motor M, the operating arm 60 senses the detection plate 51 provided on the cam wheel 5 at the lower limit position as shown in _FIG . A photo sensor 52 turns off the circuit of M, and when the second mahjong tile P is sent out to the top surface of the cradle 7, the motor M is activated again by the operation of the photo sensor _S1 mentioned above, and the cam wheel 5 is rotated. As a result, when the actuating member 80 moves to the left and the pushing member 84 performs a pushing operation and then performs a restoring operation to the right, it rotates to the position of the photo sensor _S2 , and in that state. A detection plate is provided on the cam wheel 5 to stop the motor M, 67 is a spring that pulls up the bracket 65, 68 is a bearing that presses against the side end surface of the support plate 40, and 85 is a spring that biases the operating member 80 in the extrusion direction. be. In addition, the cam surface w consisting of an annular groove provided in the cam wheel 5 and the fitting groove 82 provided in the actuating member 80 serving as a cam block are formed by the operation of one revolution of the cam wheel 5, as shown in the expanded explanatory diagram of FIG. The actuating member 80 and the actuating arm 60 are set to operate at the timing of the stroke. Further, as shown in FIG. 6, the pedestal 7 is divided into two parts, front and back, and a member 70 on the rear side (right side in FIG. 6) is fixed to a bracket 65.
The front side member 71 is rotatably connected to the rear side member 70 by a hinge 72 made of a spring plate, and is connected to the groove 3 of the annular rail 30 of the alignment section d mentioned above.
When the push-out pin 33 protruding through the cradle 1 rotates to the position of the cradle 7, the front member 71 is rotated to the left in FIG. 6 about the connecting shaft 72a, and the front and rear members The space between 70 and 71 is widened so that the light passes between them.

[Effect of the idea]

The two-stage sorting device for an automatic mahjong table according to the present invention has a support machine frame 4 installed in a machine frame 2, and a bracket 7 for receiving mahjong tiles P sent by a conveyor 23 from the tile washing hopper a side. A rotating shaft m rotated by a motor M is supported on the support frame 4 in a vertically movable manner, and a cam wheel 5 is attached to the rotating shaft m. The actuating arm 60 of the vertical movement mechanism 6 that is linked to the bracket 65 of the stand 7 and raises and lowers the bracket 65 is arranged so as to be pivotably mounted on the support frame 4 so as to be able to swing up and down. The operating member 80 of the extrusion mechanism 8 that pushes out the mahjong tiles P received by the
is connected to a cam surface w installed on the cam foil 5 so as to swing up and down in a reciprocating manner as the cam foil 5 rotates, and the actuating member 80 is connected to the cam surface w installed on the cam foil 5.
Since the connecting shaft y installed in the cam wheel 5 is connected to move back and forth from side to side by the rotation of its cam wheel 5, the pedestal 7 can be raised and lowered by a single motor M without complicating the mechanism. It can drive the vertical movement mechanism 6 and the extrusion mechanism 8 that sequentially pushes out the mahjong tiles P, P stacked and received in two layers on the upper surface of the holder 7 to the alignment section d. , one reciprocating movement up and down of the operating arm 60 of the vertical movement mechanism 6 that raises and lowers the pedestal 7, and the operating member of the extrusion mechanism 8 that pushes the mahjong tiles P, P received on the top surface of the pedestal 7 into the alignment part d. 80 can be made to perform one reciprocating movement in the lateral direction at a predetermined timing. Therefore, by controlling the rotation of one motor M, both the extrusion mechanism 8 and the vertical movement mechanism 6 can be made to have the set timing. You will be able to get it to work.

[Brief explanation of drawings]

Fig. 1 is a schematic top view of an automatic mahjong table that can implement the present invention, Fig. 2 is a schematic plan view of the same tile alignment device,
Fig. 3 is a schematic vertical side view of the same device as above, Fig. 4 is a partially cutaway plan view of the two-stage sorting device same as above, Fig. 5 is a rear view of the two-stage sorting device same as above, and Fig. 6 is same as above. A side view of the two-stage sorting device, FIG. 7 is a longitudinal cross-sectional rear view of the same two-stage feeding device as above, FIG. 8 is a longitudinal cross-sectional rear view of the same two-stage feeding device with different cutting positions, and FIG. FIG. 6 is an explanatory diagram of the relationship between the operating member of the mechanism, the operating stroke of the operating arm of the vertical movement mechanism, and the rotation angle of the cam wheel. Explanation of drawing symbols, A... Automatic mahjong table, a... Tile washing hopper, B... Tile alignment device, b... Two-stage sorting device, c... Supply section, d... Alignment section, e... Extrusion device, Z...rotation axis, P...mahjong tiles, 1...mahjong table, 10...lift, 11...window hole, 12...
Drop opening, 13...Lid plate, 2...Machine frame, 2a...Bottom plate, 20...Spindle, 21...Rotary table, 22
...Adsorption ring, 23...Conveyor, 23a...
Terminal end, 30... Annular rail, 30a... Free end, 31... Groove, 32... Chain, 33... Push-out pin, M... Motor, m... Rotating shaft, w...
Cam surface, y...Connection shaft, 4...Support machine frame, 40...
...branch board, 41, 42...support plate, 43...window hole,
5...Cam foil, 50...Boss part, 51, 52
... Detection plate, 6 ... Vertical movement mechanism, 60 ... Operating arm, 61 ... Support shaft, 62 ... Linking shaft, 63 ...
Bearing, 64... Guide rod, 65... Bracket, 66... Bearing, 67... Spring,
68... bearing, 7... pedestal, 70... rear side member, 71... front side member, 72... hinge, 72a... connecting shaft, 8... extrusion mechanism, 80...
...Operating member, 81...Guide rod, 82...Fitting groove, 83...Bearing, 84...Extrusion member,
85...Spring, _S1 , _S2 ...Photo sensor.

Claims (1)

[Scope of utility model registration request] A bracket 65 of a cradle 7 that receives mahjong tiles P sent by a conveyor 23 from the tile washing hopper a side is vertically movably supported on a support machine frame 4 installed in the machine frame 2. 4 supports a rotating shaft m rotated by a motor M, a cam foil 5 is attached to the rotating shaft m, and the cam foil 5
A vertical movement mechanism 6 is located near the holder 7 and is connected to the bracket 65 of the pedestal 7 to raise and lower the bracket 65.
The operating arm 60 is arranged and pivoted on the support frame 4 so as to be able to swing up and down, and the cradle 7
An operating member 80 of a push-out mechanism 8 that pushes out the mahjong tiles P received above to the alignment part d is arranged and supported on the support frame 4 so as to be slidable left and right, and the operating arm 6
0 is connected to the cam surface w installed on the cam wheel 5 so that it can swing up and down as the cam wheel 5 rotates, and the connecting shaft y that connects the operating member 80 to the cam wheel 5 A two-stage feeding device for an automatic mahjong table that is connected so that it can reciprocate from side to side by rotation.