JPH054868Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an automatic mahjong table, and more specifically, the two-tier stack of tiles that are transferred by a conveyor and waiting on the waiting stand are placed on the elevator stand in the lowered position. This relates to an elevator elevating mechanism that moves a push plate forward, transfers the material, and raises it above the mahjong table.

(Conventional technology and problems to be solved) Conventionally, this type of device was first developed in 1973.
This is disclosed in Japanese Patent No. 13989, and its configuration is such that a roller that slides due to the rotation of a plate cam that is integrated with the rotation of a cam drive shaft shifts to sliding with the engaging edge by sliding with the engaging edge. As a result, the roller is raised upwards, raising the intonation rod that is integrated with it, and as the intonation rod rises, the lifting platform on which the pie is placed also rises via the mounting plate, fixing rod, and connecting plate, and finally the lifting platform lifts. It was constructed so that it was flush with the tabletop.

However, in this type of device, the lifting platform is operated via a crank mechanism consisting of a mounting plate, an intonation rod, a connecting plate, and a fixing plate, so there are many causes of failure in the crank mechanism part when raising and lowering it, and as a result, maintenance is required. It has many problems, such as the need for time-consuming repair work, the time-consuming assembly during manufacturing, and increased costs due to the large number of parts. That is, although it is possible to raise and lower the elevator platform by rotating a single plate cam, it has been pointed out that there are problems with failures in the crank mechanism or with ease of assembly.

Another type of device that has recently been disclosed is Japanese Utility Model Application Publication No. 60-99983, whose configuration employs two sets of crank pins in order to solve the problem cited in the above-mentioned example. An elevating rod that supports the lift and a guide member that loosely fits the elevating rod are provided on both sides, and two sets of crank pins that interlock with the output shaft and come into contact with the operating member are provided to move the lift up and down, The extrusion plate that transfers the two-stage stacked tiles from the waiting alignment section to the lift is installed in an extrusion device installed in the support machine frame, and the transmission gear 2 is connected to two sets of crank pins that operate the lift. The rotary shaft of the motor, on which the cam wheel and the cam wheel for operating the push-out plate were arranged, was pivotally supported by a support machine.

However, even in such a device, since there are two sets of crank pins that contact the actuating member and are supported at two points, the parallelism of the crank pins is finely adjusted and the guide members on both sides fixed to the supporting machine frame are used. Match the verticality of the lifting rod that is loosely fitted to prevent twisting.
Matching the lifting and lowering speeds of the left and right sides of the lift, smoothing the movement of the lift, accelerating the downward movement of the lift, and
Requirements for parts and assembly accuracy had to be relaxed, and a new problem had to be solved: the rotating shaft between the two transmission gears was long and prone to wobbling.

The present invention was devised to solve these problems, and the elevator is raised and lowered by supporting the connecting lever at one point via the lifting pin of the rotating operating disk, and making it easy to attach the connecting lever and the elevator. The purpose of this invention is to provide an elevator elevating mechanism for a tile aligning device.

(Means for Solving the Problems) To achieve the above objectives, the elevator lifting mechanism of the tile alignment device in the automatic mahjong table of the present invention is as follows:
An elevator elevating mechanism that transfers tiles laid out from a tile extrusion device provided adjacent to a tile alignment device from a waiting stand to an elevator and then raises the laid tiles,
Elevator support shaft holders in which elevator support rods are loosely fitted up and down are disposed on both sides of the frame of the tile alignment device, and one operating disk rotated by a drive motor is placed in the center of the elevator support shaft holder. A lifting pin is provided protruding from one point on the periphery of the operating disk, and the lifting pin is loosely fitted into a long hole drilled at the tip of a connecting lever to which the elevator is fixed. energizing the material, and as the operating disk rotates, the elevating pin loosely fits into the elongated hole,
Moreover, the elevator is characterized in that it is constructed so that the elevator can be moved up and down by the rotational movement of the operating disk.

(Function) This device consists of a motor drive shaft equipped with a cam and a bevel gear, and an extruded guide plate that is pivotally supported by a drive bearing fixed to a frame and has a guide rail integrally formed with the drive bearing. The operating shaft has an operating disk at its tip with a lifting pin provided on the outside, and a gear provided at the other end meshes with the bevel gear,
The elevator is actuated through the operating disk by the rotation of the drive shaft, and the cam is caused to move forward and backward through the pushing lever, and the pushing plate disposed on the pushing guide plate is linked to each other. Therefore, this is an elevator elevating mechanism constructed with technical means for transferring the two-tiered stack of tiles on the standby stand to the elevator and further raising the two-tiered stack of tiles so that they are lined up on the tabletop.

In addition, the elongated hole opened in the connecting lever allows the lifting pin to escape when the elevator is at the lowering end, and the vertical movement of the connecting lever guide and the tension spring allow the elevator to descend smoothly, thereby improving the performance of this device. It is improving.

(Example) An example of the present invention will be described based on FIGS. 1 to 6C.

FIG. 1 is a rear view of the tile alignment device, showing the arrangement of the main parts. Reference numeral 30 denotes an elevator operating shaft, which passes through the center of the main body and has an operating disk 31 at its tip, which is attached to the periphery of the operating disk 31. , an elevating pin 32 that draws an arc as it rotates is bored in one place, and one end is rotatably supported on the L-shaped connecting lever mounting body 12 that is fixed to the elevator 11 via a connecting lever mounting screw 38. between the lifting pin 32 and an elastic member mounting pin (hereinafter referred to as spring mounting pin) 34 that is loosely fitted into a long hole 37 opened at the other end of the connecting lever 33 and fixed in the middle of the connecting lever 33. A tension spring 35 (for example, an elastic member) is provided to bias the spring mounting pin 34 and the lifting pin 32 so that the distance between them is constantly reduced.

Reference numeral 13 denotes an elevator support rod, which is suspended from both sides of the elevator 11 in parallel with the connecting lever mounting body 12, and is loosely fitted into an elevator support shaft holder 14 fixed to the frame 80.

Next, FIG. 2 is a plan view, and FIG. 3 is a front view. In the figure, numeral 39 denotes a gear, which is provided at the end opposite to the operating disk 31. 41 is a drive shaft directly connected to a motor 42, which is pivotally supported by a drive bearing 40 arranged in the center of a frame 80, and a micro SW disk 71 having a cam 29, a bevel gear 36, and a recess 70 on the outer periphery is arranged. There is. Reference numeral 60 denotes a rail cover that holds the two-tier stacked tiles P aligned on the standby table 10, and the hinge 61 and tension spring 62 shown in FIG. It has a one-touch structure.

Next, a partial rear view of the area around the operating disk 31 in FIG. 1 is shown in FIGS. 4B to 6A, a sectional view taken along the line A-A in FIG. Illustrated in Figures 4C to 6C,
In each of FIGS. 4 to 6, the operating state of each part is explained using three diagrams, A to C, at a certain timing. 20 is an extruded guide plate and drive bearing 4
It is integrally molded with 0. Two guide rails 23 are arranged in parallel inside the extrusion guide plate 20. 22 is a slide bearing that connects to the guide rail 23.
The push plate 21 and the push piece 24 are respectively provided in the vertical direction. 25
are arranged on both sides of the extrusion guide plate 20 so that the push plate 21 is biased in the backward direction by tension springs. 26 is a push lever, with push piece 2 at the upper end.
4, and a cam roller 27 in the middle, and the lower end is attached to the extrusion lever mounting shaft 43.
It is rotatably supported by the frame body 80 via.
29 is a cam that contacts the cam roller 29 and drives the drive shaft 41.
The push plate 21 is rotated by the push lever 26.
It is arranged to move back and forth. Reference numeral 81 denotes a chain path of a conveyor that conveys the two-tier stacked tiles P, and the conveyor continues to the standby table 10. still,
Numeral 72 is a micro SW, and the position where it is locked in the recess 70 of the micro SW disk 71 is stored in the computer as a fixed position, and each operation is controlled. Each of FIGS. 4A to 6A is as described above.

In this embodiment, a tile vibration prevention material 63 is attached to the underside of the rail cover 60 to lightly press down on the two-tiered stacked tiles P on the waiting table 10.

Next, the operation of the elevator lifting mechanism of the tile aligning device of the present invention will be explained in detail based on the drawings.

The motor 42, which has an integrated reduction gear, is a synchronous motor and rotates once in a predetermined time (approximately 6 seconds), while the elevator 11, which is stopped at the raised position (fixed position) parallel to the table, descends and moves to the second stage. It is adjacent to a waiting stand 10 where stacked tiles P are waiting. Next, the push plate 21 in the retreat position moves forward and pushes the two-tier stacked tiles P to the elevator 1.
Transferred to 1. The transferred elevator 11 ascends, arranges the two-tier stacked tiles P on the tabletop, and stops, completing one cycle.

Since the push plate 21 is biased toward the retracted position by the tension spring 25, the cam roller 27 of the push lever 26 is always in contact with the outer periphery of the cam 29.

4A, 4B, and 4C, the elevator is in the lowered state from the raised position, and the push plate 21
is in the retreat position, and the two-stage stacked tiles P are on standby on the standby stand 10.

In FIG. 4A, the lifting pin 32 of the operating disk 31
is in the lowered state, and the tension spring 35 is stretched between the spring mounting pin 34 provided in the middle of the connecting lever 33 and the lifting pin 32.
The elevator 11 is in a descending state due to the tension of the tension spring 35 and the weight of the connecting lever guide 15. At this time, the push plate 21 is in the retracted position, and the two-stage stacked tiles P are in a standby state on the standby table 10. At this time, the micro SW72 has a lever button that is micro
It is shown in a fixed position locked in the recess 70 of the SW disk 71. In this way, the elevator 11
It stops at the lowered position adjacent to 0.

Next, in FIG. 4B, the cam roller 27 that is in contact with the outer periphery of the cam 29 rotating in the direction of the arrow is connected to the push plate 21 of the slide bearing 22 that is fitted into the guide rail 23 via the push roller 28 and the push piece 24. but,
The two-stage stacked tiles P are moved forward against the biasing force of the tension spring 25.

Next, Fig. 5A shows a state in which the operating disk 31 has rotated approximately 90 degrees clockwise, and Figs. 5B and 5C show a state in which the cam 29 has rotated approximately half a turn and the push plate 21 lifts the two-stage stacked tiles P. 11 is shown.
At this time, the micro SW 72 is in contact with the micro SW disk 71 along the outer periphery.

Next, unless the interlock of the position detection sensor (not shown) placed on the elevator 11 is released, the drive motor 42 continues to rotate and the elevator 11 begins to ascend. At the same time, the push plate 21 begins to retreat.

Further, the drive motor 42 continues to rotate, and the elevating pin 32 of the operating disk 31 is connected to the elongated hole 37, that is, the connecting lever 3.
3 to vertically raise the elevator 11 to form two-tier stacked tiles P arranged on the tabletop. This state is shown in FIGS. 6A-6B. Fig. 6C is an explanatory diagram of the operation of the timing micro switch.
is set in the recess 70 of the micro SW disk 71, and one cycle operation of the tile alignment unit is completed.

Regarding the structure around the operating disk 31 of this embodiment, a spring mounting pin 34 is attached to the middle of the connecting lever 33, and a tension spring 35 is stretched between the spring mounting pin 34 and the lifting pin 32. However, the spring mounting pin 3
4 may be attached to the tip of the connecting lever 33 beyond the elongated hole 37, and a pressing spring may be interposed between the spring attachment pin 34 and the lifting pin 32.

However, in any case, the force of the spring acts in the direction of lowering the elevator 11, and the elongated hole 37 serves as a relief for the movement of the lifting pin 32 at the lowering end of the elevator 11.

(Effect of the invention) As is clear from the above explanation, the elevator elevating mechanism of the tile alignment device in the automatic mahjong table of the invention is as follows:
An elevator elevating mechanism that transfers tiles laid out from a tile extrusion device provided adjacent to a tile alignment device from a waiting stand to an elevator and then raises the laid tiles,
Elevator support shaft holders in which elevator support rods are loosely fitted up and down are disposed on both sides of the frame of the tile alignment device, and one operating disk rotated by a drive motor is placed in the center of the elevator support shaft holder. A lifting pin is provided protruding from one point on the periphery of the operating disk, and the lifting pin is loosely fitted into a long hole drilled at the tip of a connecting lever to which the elevator is fixed. energizing the material, and as the operating disk rotates, the elevating pin loosely fits into the elongated hole,
Moreover, by making the elevator move up and down by the rotational movement of the operating disk, the initial objective can be achieved with an extremely simplified mechanism.

Furthermore, by using a mechanism in which the connecting lever converts the rotational movement of the operating disc into linear vertical movement, there is no need for fine adjustment of parallel positioning, unlike the conventional two-point support of two sets of crank pins. In addition, it is possible to reduce the clearance between the elevator support rod and the elevator support shaft holder, thereby eliminating backlash, and at the same time reducing the conventional two sets of transmission gears to one.
By making it as a set, the rotating shaft can be shortened, and the problem of wobbling has been solved, so there are no parts that can break down, and there is no need for maintenance, which has greatly contributed to the industry.

[Brief explanation of the drawing]

Fig. 1 is a rear view of the tile alignment device of the present invention, Fig. 2 is a plan view, Fig. 3 is a front view, Fig. 4A is a partial rear view showing the lowered position of the elevator, and Fig. 4B is the same. Figure 2 is a sectional view taken along the line A-A, Figure 4C is an explanatory diagram of the operation of the same timing micro switch, Figure 5A is a partial rear view showing when the elevator is ascending, and Figure 5B is a cross-sectional view taken along the line A-A in Figure 2. Figure 5C is an explanatory diagram of the operation of the timing micro switch, Figure 6A is a partial rear view showing the elevator rising position, and Figure 6B is
The figure is a sectional view taken along the line A--A in FIG. 2, and FIG. 6C is an explanatory diagram of the operation of the timing micro switch. 10...Waiting stand, 11...Elevator, 13...
... Elevator support rod, 14 ... Elevator support shaft holder, 31 ... Operating disk, 32 ... Lifting pin, 33 ... Connection lever, 35 ... Tension spring, 37 ... Elongated hole, 80 ... Frame.

Claims (1)

[Scope of Claim for Utility Model Registration] An elevator elevating mechanism for transferring tiles laid out by a tile extrusion device provided adjacent to a tile alignment device from a waiting stand to an elevator and then lifting the laid tiles, Elevator support shaft holders in which elevator support rods are loosely fitted up and down in the frame of the alignment device are disposed on both sides, and one operating disk that rotates via a drive motor is pivotally supported in the center of the elevator support shaft holder. An elevating pin is protruded from one location on the periphery of the operating disk, and the elevating pin is loosely fitted into a long hole drilled at the tip of a connecting lever to which the elevator is fixed, and an elastic material is attached to the elevating pin. energized, and as the operating disk rotates, the elevating pin loosely fits into the elongated hole;
An elevator elevating mechanism for a tile alignment device in an automatic mahjong table, characterized in that the elevator is configured to be able to rise and fall freely by the rotational movement of an operating disk.