Mahjong machine tile feeding driving mechanism

Abstract

The application discloses a mahjong tile feeding driving mechanism, which comprises a tile feeding motor, a transmission cam connected with an output shaft of the tile feeding motor, a tile pushing transmission assembly arranged between the transmission cam and a tile storage plate, the tile storage plate being driven by the tile pushing transmission assembly to move close to or away from a slope type tile lifting plate, a moving track of the tile storage plate extending to below the slope type tile lifting plate, a tile lifting transmission assembly arranged between the transmission cam and the slope type tile lifting plate, and the slope type tile lifting plate being driven by the tile lifting transmission assembly to flip relative to a table top. The mahjong tile feeding driving mechanism adopts one tile feeding motor to drive the tile lifting and the tile pushing simultaneously, greatly saves power cost and reduces the number of control nodes. The tile storage plate completes the tile pushing in the process of moving to the slope type tile lifting plate, which not only enables the slope type tile lifting plate to be arranged closer to the center of a tile shuffling barrel, facilitating players to grab tiles, but also provides a possibility for the mahjong machine to be retracted.

Description

Technical Field

[0001] This invention belongs to the field of mahjong machine technology, specifically relating to a card-adding drive mechanism for a mahjong machine. Background Technology

[0002] Automatic mahjong machines can autonomously complete processes such as shuffling, stacking, pushing, and raising tiles, which requires the assistance of numerous power mechanisms. Because mahjong machines contain many power mechanisms, each requiring corresponding control resources, not only are the power costs high, but the failure rate is also significantly increased.

[0003] To address the aforementioned issues, Chinese utility model patent CN209714258U discloses a one-way convex wheel drive mechanism for lifting and pushing tiles in a mahjong machine. This drive mechanism is used in a ramp-lift mahjong machine, which has a tile storage channel. The tile lifting plate can rotate relative to the mahjong machine panel. When the tile lifting plate descends, it engages with the tile outlet of the storage channel. At this time, the tile pushing head pushes the mahjong tiles onto the tile lifting plate along the storage channel. The drive mechanism includes an incomplete gear located below the tile lifting plate. A cam is coaxially and rotatably connected to the incomplete gear. A one-way transmission structure is provided between the cam and the incomplete gear. A transmission mechanism for driving the tile lifting plate to rotate is provided between the cam surface of the cam and the tile lifting plate. The incomplete gear can mesh with a tile pushing winding wheel.

[0004] The drive mechanism uses a driver to rotate the lifting plate and the pushing plate winding wheel, while the pushing head is fixed on the pushing line. When the pushing plate winding wheel rotates, the pushing line moves back and forth, thereby driving the pushing head to push the plate.

[0005] This tile-lifting and pushing one-way convex wheel drive mechanism is suitable for mahjong machines where the tile storage plate remains in a fixed position and the mahjong tiles are lifted from the width direction of the tile-lifting plate, but not for mahjong machines where the tile storage plate will move relative to the tile-lifting plate. Summary of the Invention

[0006] The purpose of this invention is to provide a card-feeding drive mechanism for a mahjong machine. This card-feeding drive mechanism can not only drive the inclined card-lifting plate to flip, but also drive the card storage plate to move towards the inclined card-lifting plate so as to feed cards to the inclined card-lifting plate.

[0007] To achieve the above-mentioned objectives, the technical solution of the present invention is as follows:

[0008] A tile-dealing drive mechanism for a mahjong machine includes:

[0009] Motor registration;

[0010] A transmission cam that is linked to the output shaft of the motor being registered;

[0011] A push-card transmission assembly is provided between the transmission cam and the card storage plate. The card storage plate moves closer to or away from the inclined card lifting plate under the drive of the push-card transmission assembly. The movement trajectory of the card storage plate extends to the bottom of the inclined card lifting plate.

[0012] A tile-lifting transmission assembly is provided between the transmission cam and the inclined tile-lifting plate. Under the drive of the tile-lifting transmission assembly, the inclined tile-lifting plate flips relative to the mahjong machine panel.

[0013] In this invention, the power of the card-feeding motor is split using a transmission cam. Part of the power is transmitted to the inclined card-lifting plate via the card-lifting transmission assembly, causing the card-lifting plate to flip relative to the mahjong machine panel. The other part of the power is transmitted to the card-storage plate via the card-pushing transmission assembly, causing the card-storage plate to move closer to or away from the card-lifting plate. Since the movement trajectory of the card-storage plate extends below the inclined card-lifting plate, when the card-storage plate is driven to gradually approach the inclined card-lifting plate, the inclined card-lifting plate will scoop up the mahjong tiles on the card-storage plate, thus completing the transfer of the mahjong tiles from the card-storage plate to the inclined card-lifting plate. In this way, a single card-feeding motor can simultaneously drive the card-lifting and card-pushing functions, greatly saving power costs and reducing the number of control nodes in the mahjong machine.

[0014] In this invention, the card storage plate pushes the cards while moving towards the inclined card lifting plate. This not only allows the inclined card lifting plate to be positioned closer to the center of the shuffling barrel, making it easier for players to grab cards, but also provides the possibility of retracting the perimeter of the mahjong machine, making it easier to pack the mahjong machine in a smaller packing box.

[0015] In the aforementioned mahjong machine tile-raising drive mechanism, the tile-raising transmission assembly includes:

[0016] A card-lifting base, which is fixed to the bottom surface of a sloping card-lifting plate and has a card-lifting curved groove;

[0017] The lifting arm has a fixed end that is hinged to the frame and a free end that has a lifting roller. The lifting roller rolls in a rolling engagement with the lifting groove to drive the inclined lifting plate to rotate.

[0018] The card-raising push rod has one end fixedly connected to the card-raising rocker arm, and the other end of the card-raising push rod has a card-raising roller. The card-raising roller rolls into a card-raising curved groove on the transmission cam to drive the card-raising rocker arm to swing.

[0019] Because the plate-raising rollers and the plate-raising curved grooves roll together, when the plate-raising motor drives the transmission cam to rotate, the transmission cam will push and pull the plate-raising push rod, which in turn drives the plate-raising rocker arm to swing. The swing of the plate-raising rocker arm further drives the plate-raising rollers to roll along the plate-raising curved grooves, thereby causing the inclined plate-raising plate to flip.

[0020] Preferably, in the above-mentioned mahjong machine card-raising drive mechanism, the card-raising curve groove has a positioning slot at a low position and a slot bottom at a high position, and a first limiting corner is formed between the positioning slot and the card-raising curve groove.

[0021] The aforementioned tile-lifting roller has a top support position that is located within the positioning groove to keep the inclined tile-lifting plate flush with the mahjong machine panel, and a tile-lifting position that rolls along the tile-lifting curve groove to cause the inclined tile-lifting plate to rotate around its rotation center axis.

[0022] When the positioning slot is in the low position, the inclined tile-lifting plate can remain flush with the mahjong machine panel when the tile-lifting roller is in the positioning slot. Under the restriction of the first limiting corner, the tile-lifting roller can always be in the positioning slot when there is no external force, ensuring the stability of the inclined tile-lifting plate. Only when the tile-lifting rocker arm swings can the tile-lifting roller cross the first limiting corner and roll along the tile-lifting curve groove to its bottom, so that the inclined tile-lifting plate can descend to receive the mahjong tiles.

[0023] In the aforementioned mahjong machine card-feeding drive mechanism, the card-feeding curved groove includes a descending section, a pushing section, and an upward section. The card-feeding roller has a descending position that rolls along the descending section to lower the inclined card-lifting plate, a pushing position that rolls along the pushing section to move the card storage plate toward the inclined card-lifting plate and push the mahjong tiles onto the inclined card-lifting plate, and an upward position that rolls along the upward section to raise the inclined card-lifting plate.

[0024] When the drive cam rotates and the descending section reaches the card-loading roller, the card-loading roller pushes the card-loading push rod as it rolls along the descending section, causing the card-lifting rocker arm to swing towards the shuffling barrel. The card-lifting roller then rolls along the card-lifting curve groove towards its bottom, causing the card-lifting plate to descend and receive the mahjong tiles. When the drive cam rotates and the pushing section reaches the card-loading roller, the card-loading roller moves along the pushing section, causing the card-storage plate to move towards the card-lifting plate, pushing the mahjong tiles flat onto the card-lifting plate. When the drive cam rotates and the upward section reaches the card-loading roller, the card-loading roller pulls back the card-loading push rod as it rolls along the upward section, causing the card-lifting rocker arm to swing away from the shuffling barrel. The card-lifting roller then rolls along the card-lifting curve groove towards its positioning slot, causing the card-lifting plate to rise with the mahjong tiles onto the tabletop.

[0025] In the aforementioned mahjong machine card-feeding drive mechanism, the card-pushing transmission component includes an S-shaped card-pushing track located on the bottom surface of the card storage plate. The S-shaped card-pushing track includes a pushing section and a return section symmetrically arranged about the center of the track's midpoint. The end of the pushing section away from the midpoint of the track is the pushing start point, and the end of the return section away from the midpoint of the track is the return start point. Both the pushing section and the return section are arc-shaped, and the central angle of the arc is 90°.

[0026] The transmission cam has a pusher roller in the radial position that rolls with the S-shaped pusher track. The pusher roller has a pusher preparation position that rolls from the midpoint of the track along the push section to the push start point, a pusher position that rolls from the push start point along the push section to the midpoint of the track to move the storage plate to the inclined lifting plate, a return preparation position that rolls from the midpoint of the track along the return section to the return start point, and a return position that rolls from the return start point along the return section to the midpoint of the track to return the storage plate to the initial position.

[0027] The card storage plate includes a card storage platform, which has a card storage guardrail on the side along its length away from the inclined card lifting plate.

[0028] Preferably, in the above-mentioned mahjong machine card-feeding drive mechanism, the upward section includes a primary upward section and a secondary upward section. The card-feeding roller has a primary upward position that rolls along the primary upward section to make the ramp-type card-lifting plate rise upward, and a secondary upward position that rolls along the secondary upward section to make the ramp-type card-lifting plate continue to rise while returning the card storage plate to its initial position.

[0029] When the card-loading roller rolls along the descending section, the card-pushing roller rolls from the midpoint of the track along the push section to the start of the push section. This rolling trajectory is exactly concentric with the rotation trajectory of the transmission cam, so the card storage plate remains in a fixed position. When the card-loading roller rolls along the push section, the push roller rolls from the start of the push section to the midpoint of the track, pushing the card storage plate towards the lifting plate during the rolling process. To accommodate the return preparation position and return position of the push roller, the upward section in the card-loading curve groove is divided into a first-level upward section and a second-level upward section connected in sequence. When the drive cam rotates and the first-stage upward section reaches the card-adding roller, the card-pushing roller also reaches the midpoint of the track and rolls along the return section towards the return start point as the drive cam rotates. This rolling trajectory is exactly concentric with the rotation trajectory of the drive cam, so the card storage plate also remains in the same position. When the drive cam rotates and the second-stage upward section reaches the card-adding roller, the card-pushing roller also reaches the return start point and rolls along the return section towards the midpoint of the track as the drive cam rotates. During the rolling process, it pushes the card storage plate back to the initial position, waiting for the next card push.

[0030] Since the storage board pushes the mahjong tiles onto the inclined lifting board during the movement, this invention modifies the traditional storage board by adding a storage guardrail that is positioned opposite the inclined lifting board. Under the push of the storage guardrail, the mahjong tiles can be smoothly transferred to the inclined lifting board.

[0031] Due to the slope and thickness of the ramp-type tile-lifting plate, as well as the possible height difference between the storage plate and the tile-lifting plate, the end face of the mahjong tile is prone to pressing against the ramp-type tile-lifting plate when it is transferred from the storage plate to the ramp-type tile-lifting plate. Once this risk occurs, the tile will be pushed up incorrectly.

[0032] To eliminate this risk, in the above-mentioned mahjong machine card feeding drive mechanism, the card storage plate is provided with a card top opening, and the distance between the card top opening and the inclined card lifting plate is less than the width or length of a mahjong card.

[0033] Below the top tile opening is a top tile plate for lifting the end of the mahjong tile toward the inclined tile lifting plate upwards. Between the top tile plate and the transmission cam is a top tile assembly for driving the top tile opening to rise and fall.

[0034] By using a top plate to lift the mahjong tiles upwards towards the lifting plate (i.e., the head end of the mahjong tiles), a clearance space is formed between the head end of the mahjong tiles and the storage plate. When the mahjong tiles are transferred from the storage plate to the lifting plate, the lifting plate will "scoop" the mahjong tiles up because they are included in the clearance space, thus preventing the mahjong tiles and the lifting plate from pressing tightly together.

[0035] Preferably, in the above-mentioned mahjong machine card-feeding drive mechanism, the card-feeding component includes:

[0036] A card pusher base, the top surface of which is formed with a receiving groove for accommodating the top card plate;

[0037] The top plate push rod has one end fixedly connected to the top plate lifting rocker arm, and the other end rotatably connected to the top plate plate to drive the top plate plate to rise and fall along the receiving groove.

[0038] The lifting plate base also has a top plate clearance groove that communicates with the bottom of the lifting plate curve groove. The top plate clearance groove extends from the bottom of the lifting plate curve groove to the side away from the inclined lifting plate and coincides with the swing trajectory of the lifting plate rocker arm.

[0039] The card-lifting action is performed only after the inclined card-lifting plate has completed its card-receiving preparation. At this point, the card-lifting roller has reached the bottom of the card-lifting curved groove, and the card-lifting rocker arm can no longer swing. However, the card-pushing rod, which drives the card-lifting plate to rise and fall, requires the card-lifting rocker arm to continue swinging. Therefore, this invention adds a card-lifting clearance groove to the card-lifting seat, opening up a path for the card-lifting rocker arm to continue swinging. At the same time, since the card-lifting clearance groove coincides with the swing trajectory of the card-lifting rocker arm, the card-lifting seat remains in a fixed position when the card-lifting roller rolls along the card-lifting clearance groove.

[0040] In the aforementioned mahjong machine card-loading drive mechanism, the card storage plate is driven to move along the top surface of the card-pushing seat;

[0041] The side of the push card holder has at least one through opening that communicates with the receiving groove, the top card plate has a push card holder that extends from the through opening to the outside of the push card holder, and the top card push rod is rotatably connected to the push card holder.

[0042] The pusher seat has a card-lifting clearance groove, and the end of the pusher rod is rotatably connected to a card-lifting roller that rolls with the card-lifting clearance groove. The card-lifting roller rolls along the card-lifting curve groove as the pusher roller rolls along the card-lifting curve groove, but does not drive the card-lifting plate to rise or fall.

[0043] In this invention, the pusher base is used not only to support the top plate but also to support the storage plate, serving two purposes in one unit. The through opening on the side of the pusher base not only facilitates the transmission between the top plate pusher rod and the top plate, but also greatly reduces the contact area between the top plate and the pusher base, thus reducing friction between them.

[0044] Since the top plate push rod and the lifting plate swing arm are linked, in order to ensure that the top plate push rod does not cause the top plate plate to rise or fall when the lifting plate roller rolls along the lifting plate curve groove to drive the inclined lifting plate to flip, this embodiment has a lifting plate clearance groove on the push rod and a top plate roller on the top plate push rod. Although the top plate roller will not cause the top plate plate to rise or fall when it rolls along the lifting plate clearance groove, it can lift the top plate plate when it rolls to the highest point of the lifting plate clearance groove.

[0045] Preferably, in the above-mentioned mahjong machine card-feeding drive mechanism, the card-feeding curved groove includes a card-pushing section, a first-level card-pushing section, and a second-level card-pushing section connected in sequence. The card-feeding roller also has a top card position where it rolls along the top card section to drive the lifting roller to roll along the top card clearance groove so that the top card push rod lifts the top card plate. It also has a top card position where it rolls along the first-level card-pushing section to drive the storage plate to move towards the inclined lifting plate so that the mahjong tiles are partially pushed horizontally to the first-level card-pushing position on the inclined lifting plate. Furthermore, it has a second card-pushing section where it drives the lifting roller to roll in the opposite direction along the top card clearance groove so that the top card push rod releases its support from the top card plate and the storage plate completely pushes the mahjong tiles horizontally to the second-level card-pushing position on the inclined lifting plate.

[0046] When the transmission cam rotates and causes the card-raising roller to roll along the top card section, the card-raising push rod drives the card-lifting rocker arm to continue swinging towards the shuffling barrel. The card-lifting roller then enters the top card clearance groove from the card-lifting curve groove. Since the top card clearance groove coincides with the swing trajectory of the card-lifting rocker arm, the rolling of the card-lifting roller in the top card clearance groove will not cause a change in the state of the card-lifting plate. However, it will cause the top card roller to lift the top card plate to push the mahjong tile upwards at the end facing the card-lifting plate.

[0047] When the transmission cam rotates and causes the card-loading roller to roll along the first-stage card-pushing section, the card-pushing roller rolls from the starting point of the push stroke along the push stroke section, driving the card storage plate to move along the support surface of the card-pushing seat to the card-lifting plate, and the front end of the mahjong tile is placed on the card-lifting plate; during this process, the card-loading push rod remains in a fixed position, so the card-lifting rocker arm and the card-top push rod also remain in a fixed position, the card-lifting plate remains in its descending state waiting to receive the mahjong tile, while the card-top plate remains in the card-topping state;

[0048] When the transmission cam rotates and causes the card-raising roller to roll along the secondary card-pushing section, the card-raising push rod drives the card-lifting rocker arm to swing away from the shuffling barrel. The card-lifting roller returns from the top card avoidance groove to the card-lifting curve groove. The top card roller also contacts the top support of the top card plate and rolls along the card-lifting avoidance groove. After the top support of the mahjong tiles is released, the top card plate remains unchanged below the card storage plate. During this process, the card-pushing roller continues to roll along the pushing stroke section to the midpoint of the track, completely pushing the mahjong tiles flat onto the card-lifting plate, completing one card-pushing cycle.

[0049] Compared with the prior art, the beneficial effects of the present invention are reflected in:

[0050] (1) This invention utilizes a transmission cam to split the power of the card-raising motor. Part of the power is transmitted to the inclined card-raising plate through the card-raising transmission assembly, causing the card-raising plate to flip relative to the mahjong machine panel. Part of the power is transmitted to the card-storage plate through the card-pushing transmission assembly, causing the card-storage plate to move closer to or away from the card-raising plate. Since the movement trajectory of the card-storage plate extends to the bottom of the inclined card-raising plate, when the card-storage plate is driven to gradually approach the inclined card-raising plate, the inclined card-raising plate will scoop up the mahjong tiles on the card-storage plate. The mahjong tiles are then transferred from the card-storage plate to the inclined card-raising plate. In this way, a single card-raising motor can simultaneously drive the card-raising and card-pushing, greatly saving power costs and reducing the number of control nodes in the mahjong machine.

[0051] (2) In this invention, the card storage plate pushes the cards while moving towards the inclined card lifting plate, which not only allows the inclined card lifting plate to be set closer to the center of the shuffling barrel, making it easier for players to grab cards; but also provides the possibility of shrinking the perimeter of the mahjong machine, making it easier to pack the mahjong machine with a smaller packing box.

[0052] (3) In this invention, the card-raising motor also drives the card-raising plate to rise and fall through the card-raising assembly, so that the card-raising plate can be used to lift the mahjong tiles on the storage plate towards the lifting plate (i.e., the front end of the mahjong tiles, defined by the direction of the mahjong tiles' movement) upwards, so that a clearance space is formed between the head end of the mahjong tiles and the storage plate. When the mahjong tiles are transferred from the storage plate to the lifting plate, the lifting plate will "scoop" up the mahjong tiles because they are included in the clearance space, thus avoiding the mahjong tiles and the lifting plate being pressed tightly together. Furthermore, the card-raising motor solves the hidden danger of pushing the tiles in the inclined mahjong tile-raising machine. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the structure of the tile-loading drive mechanism for the mahjong machine of the present invention;

[0054] Figure 2 for Figure 1 Schematic diagram of the structure of the central transmission cam;

[0055] Figure 3 for Figure 1A schematic diagram of the structure of the intermediate transmission cam from another perspective;

[0056] Figure 4 for Figure 1 A schematic diagram of the assembly structure of the card holder and the card storage plate;

[0057] Figure 5 for Figure 1 A structural schematic diagram of the Zhongchu brand plate from another perspective;

[0058] Figure 6 for Figure 1 Schematic diagram of the structure at the inclined plate lifting point;

[0059] Figure 7 for Figure 1 A schematic diagram of the structure of the top-of-the-line card board;

[0060] Figure 8 for Figure 1 Schematic diagram of the first working state of Zhong Sheng brand transmission assembly and Ding brand transmission assembly;

[0061] Figure 9 for Figure 1 Schematic diagram of the second working state of Zhong Sheng brand transmission assembly and Ding brand transmission assembly;

[0062] Figure 10 for Figure 1 Schematic diagram of the third working state of Zhong Sheng brand transmission components and Ding brand transmission components;

[0063] Figure 11 for Figure 10 Enlarged view of part A in the middle. Detailed Implementation

[0064] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0065] like Figure 1 As shown, the mahjong machine card-feeding drive mechanism of this embodiment includes a card-feeding motor 51. A transmission cam 52 is fixedly installed on the output shaft of the card-feeding motor 51. The inclined card-lifting plate 3 is driven by the transmission cam 52 through the card-lifting transmission assembly 53, and the card-storage plate 12 is driven by the transmission cam 52 through the card-pushing transmission assembly 54.

[0066] In this embodiment, the card storage plate 12 includes a card storage platform 12a for storing card stacks. One length direction side of the card storage platform 12a has a card storage guardrail 12b, and the other length direction side of the card storage platform 12a is the card dispensing side. The card storage guardrail 12b can be fixedly installed to the side of the card storage platform 12a, or it can be integrally formed with the card storage platform 12a.

[0067] In this embodiment, the card storage plate 12 is movably mounted on the card pusher 6, and can move along the support surface formed by the card pusher 6 under the drive of the card loading mechanism 5. When moving, the card dispensing side is in front of the moving direction.

[0068] Depend on Figure 1 As can be seen, in this embodiment, in the moving direction of the card storage plate 12, the supporting surface of the card pusher 6 is narrower than that of the card storage plate 12. The card storage plate 12 at the starting point of the card push rests on the supporting surface with the card playing side on it, while the card storage guardrail 12b side is suspended in the air. Furthermore, the card loading drive mechanism 5 is also located on the card playing side of the card storage plate 12. Therefore, when the card storage plate 12 moves along the supporting surface, it gradually frees up the outer space of the card pusher 6, thereby greatly reducing the perimeter of the mahjong machine and facilitating the use of a smaller packing box to pack the mahjong machine.

[0069] like Figure 1 and Figure 4 As shown, to ensure that the card storage plate 12 does not deviate during movement along the support surface, the bottom surface of the card storage plate 12 has a guide member 12d that penetrates the card pusher 6. In this embodiment, the guide member 12d consists of two guide rods. Meanwhile, as... Figure 1 , Figure 4 and Figure 5 As shown, the bottom surface of the card storage plate 12 has a row of recessed areas 12e arranged along the length of the card storage plate 12. Each recessed area 12e is strip-shaped, and the length extension direction of the recessed area 12e is consistent with the moving direction of the card storage plate 12. After setting the recessed areas 12e, the contact area between the card storage plate 12 and the card pusher 6 is greatly reduced, which reduces both the moving resistance of the card storage plate 12 and unnecessary wear between the two.

[0070] The recessed area 12e can be provided only on the bottom surface of the storage platform 12a, or it can extend from the bottom surface of the storage platform 12a to the back of the storage railing 12b; this can greatly reduce the overall weight of the storage plate 12 while ensuring the strength of the storage railing 12b.

[0071] like Figure 1 As shown, in this embodiment, the inclined tile-lifting plate 3 of the mahjong machine is located on the tile-dispensing side of the tile storage platform 12a; and the tile-lifting method of the inclined tile-lifting plate 3 in this embodiment is inclined tile lifting, that is, one length direction side of the inclined tile-lifting plate 3 is hinged to the frame or the mahjong machine panel, while the other length direction side can be raised and lowered under the drive of the tile-loading drive mechanism 5; after descending, the inclined tile-lifting plate 3 is attached to the tile-dispensing side of the tile storage plate 12 in an inclined form.

[0072] Obviously, since the ramp-type tile-lifting plate 3 is placed on the tile-storage plate 12 after it descends, the movement trajectory of the tile-storage plate 12 will extend to the area below the plane where the ramp-type tile-lifting plate 3 is located. Due to the presence of the tile-storage guardrail 12b, as the tile-storage plate 12 gradually moves toward the ramp-type tile-lifting plate 3, the mahjong tiles on the tile-bearing platform 12a will be pushed flat onto the ramp-type tile-lifting plate 3.

[0073] To ensure the smooth transfer of mahjong tiles from the storage plate 12 to the ramp-type lifting plate 3, this embodiment sets the angle between the ramp-type lifting plate 3 and the storage plate 12 after descent to between 90° and 180° (excluding 90° and 180°), more preferably between 120° and 180° (including 120° and 180°), and most preferably between 150° and 180° (including 150° and 180°). Obviously, within this range, the larger the angle, the smoother the transfer of mahjong tiles.

[0074] That is, in this embodiment, the card storage plate 12 can be set horizontally or inclined, and should be inclined in the direction that increases the angle between the ramp-type card lifting plate 3 and the card storage plate 12, that is, inclined downward from the card dispensing side to the card storage guardrail 12b side; correspondingly, the supporting surface of the card pusher 6 also has the same inclination angle as the card storage plate 12.

[0075] like Figure 1 As shown, in this embodiment, the card-lifting transmission assembly 53 includes a card-lifting seat 531 fixedly installed on the bottom surface of the inclined card-lifting plate 3, as... Figure 6 As shown, a card-raising curved groove 531a is formed on the side of the card-raising seat 531; the fixed end of the card-raising rocker arm 532 is hinged to the frame, and the free end has a card-raising roller 533 that rolls with the card-raising curved groove 531a. The card-raising roller 533 can drive the inclined card-raising plate 3 to flip by rolling along the card-raising curved groove 531a; and the rolling power of the card-raising roller 533 comes from the swing of the card-raising rocker arm 532, which is driven by the card-raising push rod 534.

[0076] In this embodiment, the way the card-feeding push rod 534 drives the card-lifting rocker arm 532 to swing is as follows: one end of the card-feeding push rod 534 is fixedly connected to the card-lifting rocker arm 532, and the other end has a card-feeding roller 535. The card-feeding roller 535 interacts with the card-feeding curved groove 521 (e.g., on the transmission cam 52) formed on the transmission cam 52. Figure 2 As shown, the rolling engagement occurs when the transmission cam 52 rotates, causing the card-raising roller 535 to roll along the card-raising curved groove 521 and push and pull the card-raising push rod 534, thereby enabling the card-raising push rod 534 to drive the card-raising rocker arm 532 to swing.

[0077] To ensure the smooth lifting and lowering of the ramp-type lifting plate 3, this embodiment provides two lifting plates 531 and two lifting rocker arms 532 at each ramp-type lifting plate 3. The two lifting rocker arms 532 are linked by a linkage rod 536, and the plate-raising push rod 534 is fixedly connected to the linkage rod 536.

[0078] In this embodiment, each tile-raising rocker arm 532 includes a swing support 532a. The middle end of the swing support 532a has a through hole for the linkage rod 536 to pass through. Extension arms 532b are respectively inserted into both ends of the swing support 532a. One extension arm 532b is hinged to the frame through a hinge support 532c, and the other extension arm 532b has a tile-raising roller 533. This structure of the tile-raising rocker arm 532 allows the length of the extension arm 532b to be adjusted without changing the connection structure between the tile-raising rocker arm 532 and the linkage rod 536, so as to adapt to mahjong machines of different specifications.

[0079] like Figure 6 As shown, the lifting plate holder 531 has a lower positioning groove 531a and a higher groove bottom 531ab. A first limiting angle 531ac is formed between the positioning groove 531aa and the lifting plate groove 531a. When the lifting plate roller 533 is in the positioning groove 531aa (e.g., ...), the lifting plate roller 533 is positioned within the positioning groove 531aa. Figure 8 As shown), the ramp-type tile-lifting plate 3 is flush with the mahjong machine panel 100. Due to the restriction of the first limiting angle 531ac, the tile-lifting roller 533 can remain within the positioning groove 531aa when not under force, ensuring the stability of the ramp-type tile-lifting plate 3. When the tile-lifting rocker arm 532 swings, the tile-lifting roller 533 can pass the first limiting angle 531ac and roll along the tile-lifting curve groove 531a. At this time, the ramp-type tile-lifting plate 3 descends and rests on the tile storage plate 12 (as shown). Figure 9 As shown), wait for the tiles to be pushed; after the storage plate 12 pushes the mahjong tiles completely flat onto the inclined lifting plate 3, the inclined lifting plate 3 will tilt upwards.

[0080] Therefore, as Figure 6As shown, the card-feeding curved groove 521 of the transmission cam 52 includes a descending section 521a, a pushing section 521b, and an upward section 521c connected in sequence. When the transmission cam 52 rotates and the descending section 521a reaches the card-feeding roller 535, the card-feeding roller 535 rolls along the descending section 521a, causing the card-lifting rocker arm 532 to swing towards the shuffling drum. The card-lifting roller 533 then rolls from the positioning slot 531aa along the card-lifting curved groove 531a towards the bottom 531ab, causing the inclined card-lifting plate 3 to descend. When the transmission cam 52 rotates and the card-feeding section 521b reaches the card-feeding roller... After 535, the card-feeding roller 535 rolls along the card-feeding section 521b, and the card storage plate 12 moves towards the inclined card-lifting plate 3 under the drive of the card-pushing transmission component 54, pushing the mahjong tiles onto the inclined card-lifting plate 3. When the transmission cam 52 rotates and the upward section 521c reaches the card-feeding roller 535, the card-feeding roller 535 rolls along the upward section 521c, causing the card-lifting rocker arm 532 to swing away from the shuffling barrel. The card-lifting roller 533 then rolls from the bottom of the groove along the card-lifting curve groove 531a towards the positioning groove 531aa, causing the inclined card-lifting plate 3 to tilt upward until it is flush with the mahjong machine panel 100.

[0081] like Figure 1 and Figure 5 As shown, the card-pushing transmission assembly 54 in this embodiment includes an S-shaped card-pushing track 541 disposed on the bottom surface of the card storage plate 12. The S-shaped card-pushing track 541 includes a pushing section 541b and a return section 541c arranged symmetrically about the track midpoint 541a. Both the pushing section 541b and the return section 541c are arc-shaped with a central angle of 90°. The end of the pushing section 541b furthest from the track midpoint 541a is the pushing start point 541d, and the end of the return section 541c furthest from the track midpoint 541a is the return start point 541e. Figure 1 and Figure 3 As shown, the transmission cam 52 has a pusher roller 542 in the radial position that rolls with the S-shaped pusher track 541. The pusher roller 542 and the plate-mounting curved groove 521 are located on two sides of the transmission cam 52, respectively.

[0082] In this embodiment, the card-pushing roller 542 has four motion processes: card-pushing preparation position (from the midpoint of the track to the starting point of the push stroke), card-pushing position (from the starting point of the push stroke to the midpoint of the track), return preparation position (from the midpoint of the track to the starting point of the return stroke), and return position (from the starting point of the return stroke to the midpoint of the track); correspondingly, such as Figure 6 As shown, the upward-curving section 521c in the curved groove 521 is also divided into a first-level upward-curving section 521ca and a second-level upward-curving section 521cb.

[0083] When the card-loading roller 535 rolls along the descending section 521a, the card-pushing roller 542 rolls from the midpoint 541a of the track along the pushing section 541b to the starting point 541d, ready to push the cards. During this process, the rolling trajectory of the card-pushing roller 542 is exactly concentric with the rotation trajectory of the transmission cam 52, so the card storage plate 12 remains in a fixed position. When the card-loading roller 535 rolls along the pushing section 521b, the card-pushing roller 542 rolls from the starting point 541d along the pushing section 541b to the midpoint 541a of the track, causing the card storage plate 12 to move towards the inclined lifting plate 3, completing the card pushing. When the card-loading roller 535 rolls along the first-stage upward section 521ca, the lifting rocker arm 532 can only drive the inclined lifting plate 3 upward to make the mahjong tiles face the card storage railing. One side of 12b is exposed on the mahjong machine panel 100, while the pusher roller 542 rolls from the midpoint 541a of the track along the return section 541c to the return start point 541e, ready for the return. During this process, since the rolling trajectory of the pusher roller 542 is exactly concentric with the rotation trajectory of the transmission cam 52, the storage plate 12 also remains in a fixed position at its pusher end point, thus protecting the mahjong tiles on the ramp-type lifting plate 3. When the loading roller 535 rolls along the secondary upward section 521cb, the ramp-type lifting plate 3 continues to rise until it is flush with the mahjong machine panel 100, while the pusher roller 542 rolls from the return start point 541e along the return section 541c to the midpoint 541a of the track so that the storage plate 12 returns to its initial position, waiting to store tiles.

[0084] Due to the slope and thickness of the inclined tile-lifting plate 3, as well as the potential height difference between the inclined tile-lifting plate 3 and the tile-storage plate 12, there will be a certain height difference between the top surface of the inclined tile-lifting plate 3 and the top surface of the tile-storage plate 12. This height difference will affect the smooth transfer of mahjong tiles. To eliminate this effect, such as... Figure 1 and Figure 4 and Figure 8 As shown, in this embodiment, the pusher base 6 is equipped with a pusher component 55 for lifting the end of the mahjong tile facing the inclined lifting plate 3 upwards to prevent the mahjong tile from getting stuck at the joint between the storage plate 12 and the inclined lifting plate 3. The storage plate 12 is provided with a pusher opening 12f to facilitate the pusher component 55 in performing the pusher action. The distance between the pusher opening 12f and the inclined lifting plate 3 should be less than the length of a mahjong tile. The pusher opening 12f is strip-shaped, and its length extension direction is consistent with the length extension direction of the storage plate 12. When the storage plate 12 stores mahjong tiles, all mahjong tiles can be exposed at the pusher opening 12f and lifted up.

[0085] Depend on Figure 1 and Figure 4 and Figure 7As can be seen, the top surface of the pusher base 6 has a receiving groove 61, in which a top tile plate 551 is movably installed; the side of the pusher base 6 also has several through holes 62 that communicate with the receiving groove 61; and the top tile plate 551 has a connecting ear 551c that extends from one of the through holes 62 to the outside of the pusher base 6. The top tile push rod 553, which is rotatably connected to the connecting ear 551c, can drive the top tile plate 551 to slide upward along the receiving groove 61, and the top tile plate 551 can extend out from the top tile opening 12f and push the mahjong tiles upward toward the inclined tile lifting plate 3.

[0086] Depend on Figure 1 and Figure 4 and Figure 7 As can be seen, in this embodiment, the top of the top plate 551 has a top plate portion 551b that is adapted to the top plate opening 12f. The two ends of the top plate portion 551b form a limiting step 551a between the top plate 551 and the top plate 551. When the top plate 551 rises to the point where the limiting step 551a abuts against the bottom surface of the storage plate 12, the top plate 551 can no longer rise, thereby achieving the purpose of limiting the height of the top plate 551.

[0087] like Figure 7 and Figure 8 As shown, in this embodiment, the top plate push rod 553 is rotatably connected to the connecting ear 551c in the following way: a lifting plate clearance groove 552 is formed on the connecting ear 551c; the top plate push rod 553 includes a push rod connector 553a and a push arm 553b that is inserted and fixed to the push rod connector 553a; the push rod connector 553a is fixedly installed at the end of the linkage rod 536, thereby linking the linkage rod 536, the lifting plate rocker arm 532 and the top plate push rod 553; and the free end of the push arm 553b has a top plate roller 554 that rolls with the lifting plate clearance groove 552.

[0088] Corresponding to the number of card-raising rocker arms 532, two connecting ears 551c are also provided on the top card plate 551 in this embodiment to ensure that the top card plate 551 can be raised and lowered smoothly along the receiving groove 61.

[0089] like Figure 7 As shown, the lifting plate clearance groove 552 in this embodiment has a groove bottom 522a at a lower position and a top plate opening 522b at a higher position. The lifting plate clearance groove 552 can be circumferentially closed, or an opening 522d can be provided at the top plate opening 522b to facilitate the entry of the top plate roller 554 into the lifting plate clearance groove 552. In this case, it should be ensured that a second limiting angle 522c is formed between the opening 522d and the top plate opening 522b, so that the top plate roller 554 can drive the top plate plate 551 to rise and fall along the receiving groove 61 at the top plate opening 522b, without disengaging from the lifting plate clearance groove 552 at the opening 522d.

[0090] Because the top plate push rod 553 is linked to the plate lifting rocker arm 532, the position of the top plate push rod 553 changes accordingly when the plate lifting rocker arm 532 swings. Figure 8 As shown, when the lifting roller 533 is at the positioning slot 531aa of the lifting curve groove 531a, the top roller 554 is at the bottom 531ab of the lifting clearance groove 552; Figure 9 As shown, when the lifting roller 533 rolls from the positioning slot 531aa along the lifting curve groove 531a towards the bottom 531ab, the top roller 554 also rolls from the bottom 522a of the lifting clearance groove 552 towards the top slot 522b. However, this rolling does not cause the top plate 551 to rise or fall. When the top roller 554 reaches the top slot 522b, it is also at the top slot 522b, ready to top the plate. Figure 6 As shown, a top plate clearance groove 555 is also formed on the plate lifting base 531, which communicates with the bottom of the plate lifting curve groove 531a. This top plate clearance groove 555 extends from the bottom 531ab of the plate lifting curve groove 531a towards the side away from the inclined plate lifting plate 3 and coincides with the swing trajectory of the plate lifting rocker arm 532; Figure 10 As shown, when the lifting arm 532 continues to swing toward the shuffling barrel, the lifting roller 533 enters the top plate clearance groove 555 from the lifting curve groove 531a. Since the top plate clearance groove 555 coincides with the swing trajectory of the lifting arm 532, the rolling of the lifting roller 533 in the top plate clearance groove 555 will not cause a change in the state of the inclined lifting plate 3, but it will cause the top plate push rod 553 to pull against the top plate slot 522b, causing the top plate 551 to rise along the receiving groove 61 to perform the top plate action. At this time, the card storage plate 12 begins to push the card.

[0091] To prevent the top plate 551 from interfering with the tile storage plate 12's tile pushing mechanism, this embodiment is configured such that: after the front ends of the mahjong tiles on the tile storage plate 12 are placed on the inclined tile lifting plate 3, the top plate 551 can descend to release its support on the mahjong tiles. However, before this, the top plate 551 maintains a tile-supporting posture, while the tile storage plate 12 continues to move during the tile-supporting process. To prevent the top plate 551 from obstructing the movement of the tile storage plate 12 during this stage, as follows... Figure 4 As shown, the width of the top tile opening 12f is greater than the width of the top tile plate 551. When the storage plate 12 moves to push the tiles, the top tile plate 551 moves relative to the side of the top tile opening 12f that is close to the tile outlet of the storage plate 12, and then moves to the side of the top tile opening 12f that is far away from the tile outlet of the storage plate 12; then it descends to release the support of the mahjong tiles, and the storage plate 12 continues to push the tiles until the mahjong tiles are completely transferred to the inclined tile lifting plate 3.

[0092] like Figure 11As shown, a top tile surface 551d is formed on the top tile section 551b. The top tile surface 551d is inclined downward from the top of the top tile section 551b toward the tile storage plate 12. The inclination direction of the top tile surface 551d is opposite to the forward direction of the mahjong tiles on the tile storage plate 12. Moreover, the slope of the top tile surface 551d is greater than the slope of the tile storage platform 12a. This not only ensures that the tile storage plate 12 will not hinder the tile storage plate 12 from continuing to push the tiles when the top tile plate 551d descends, but also that the contact area between the mahjong tiles and the top tile surface 551d increases as the mahjong tiles continue to move forward, ensuring that the mahjong tiles remain stable during the tile-pushing process.

[0093] Correspondingly, such as Figure 2 As shown, in the card-raising curved groove 521 of the transmission cam 52, in this embodiment, the card-pushing section 521b is configured to include a top card section 521ba, a first-stage card-pushing section 521bb, and a second-stage card-pushing section 521bc connected in sequence. When the transmission cam 52 rotates and the top card section 521ba reaches the card-raising roller 535, the card-raising roller 535 rolls along the top card section 521ba, causing the card-lifting rocker arm 532 to swing toward the shuffling drum. The card-lifting roller 533 then rolls from the card-lifting curved groove 531a into the top card clearance groove 555, causing the top card push rod 553 to lift the top card plate 551. When the transmission cam 52 rotates and the first-stage card-pushing section 521bb reaches the card-raising roller 535, the card-raising roller 535 rolls along the first-stage card-pushing section 521bb. At this time, the lifting arm 532 remains in the same position, while the pushing roller 542 rolls from the starting point 541d along the pushing section 541b, pushing the mahjong tiles flat onto the inclined lifting plate 3. When the transmission cam 52 rotates and the secondary pushing section 521bc reaches the upper roller 535, the upper roller 535 rolls along the secondary pushing section 521bc, causing the lifting arm 532 to swing away from the shuffling barrel. The lifting roller 533 then returns from the top tile clearance groove 555 to the lifting curve groove 531a, and the top tile push rod 553 immediately releases its support on the top plate 551. During this process, the pushing roller 542 continues to roll along the pushing section 541b to the midpoint 541a of the track, completely pushing the mahjong tiles flat onto the inclined lifting plate 3.

[0094] Because the opening width of the top card opening 12f on the card storage plate 12 is relatively large, in order to ensure the strength of the card storage plate 12, such as Figure 4 As shown, the inner edge of the opening 12f of the top tile is provided with several reinforcing ribs 12g arranged along the length of the opening 12f, and the top tile plate 551 has a notch 551e that matches the reinforcing ribs 12g. The width of the reinforcing ribs 12g should be smaller than the width of the mahjong tiles to avoid the reinforcing ribs 12g affecting the support of the top tile plate 551 on the mahjong tiles.

[0095] like Figure 2As shown, the card-mounting curved groove 521 includes an outer curved surface 521d and an inner curved surface 521e arranged opposite to each other. During the rolling process of the card-mounting roller 535 along the card-mounting curved groove 521, the wheel surface of the card-mounting roller 535 is always rolling and in contact with the outer curved surface 521d and the inner curved surface 521e. Among them, at the card-mounting starting point 521f and the first-stage card-pushing section 521bb of the card-mounting curved groove 521, the outer curved surface 521d and the inner curved surface 521e are arranged perpendicular to the bottom surface of the groove. In other positions, the outer curved surface 521d and the inner curved surface 521e are inclined relative to the central axis of the transmission cam 52, thereby realizing the pushing and pulling of the card-mounting push rod 534. Specifically, the tilting directions of the outer curved surface 521d and the inner curved surface 521e are different in the descending segment 521a and the top card segment 521ba compared to the secondary pushing segment 521bc and the upward segment 521c. This is consistent with the rolling direction of the card-raising roller 533. From the card-raising starting point 521f to the end point of the top card segment 521ba, the tilt angles of the outer curved surface 521d and the inner curved surface 521e gradually increase; from the starting point of the secondary pushing segment 521bc to the starting point of the card-raising segment 521f, the tilt angles of the outer curved surface 521d and the inner curved surface 521e gradually decrease; at the end point of the top card segment 521ba and the starting point of the secondary pushing segment 521bc, the tilt angles of the outer curved surface 521d and the inner curved surface 521e are exactly the same as the total swing angle of the card-raising rocker arm 532.

[0096] The working principle of the mahjong machine's tile-loading drive mechanism in this embodiment is as follows:

[0097] When the card-issuing motor 51 starts, the transmission cam 52 rotates accordingly. During the rotation of the transmission cam 52, the card-issuing curved groove 521 and the card-pushing roller 542 located on both sides of the transmission cam 52 respectively perform corresponding actions under the drive of the transmission cam 52.

[0098] As a preliminary step in the card-pushing action, as the transmission cam 52 rotates, the descending section 521a first reaches the card-raising roller 535, and the card-raising roller 535 then rolls along the descending section 521a. The inner curved surface 521e squeezes the card-raising roller 535, causing the card-raising push rod 534 to drive the card-raising rocker arm 532 to swing towards the shuffling bucket. Then the card-raising roller 533 rolls from the positioning slot 531aa along the card-raising curve slot 531a to the bottom of the slot 531ab, causing the inclined card-raising plate 3 to descend until the inclined card-raising plate 3 is placed on the card storage plate 12. During this process, the card-top roller 554 also rolls from the bottom of the card-raising clearance slot 552a to the top card slot 522b, but this rolling does not cause the top card plate 551 to rise or fall. When the top card roller 554 reaches the top card slot 522b, the top card roller 554 is ready to raise the card.

[0099] When pushing the tiles, the top tile segment 521ba first reaches the tile-raising roller 535. The inner curved surface 521e continues to squeeze the tile-raising roller 535, causing the tile-raising push rod 534 to drive the tile-raising rocker arm 532 to continue swinging towards the shuffling barrel. The tile-raising roller 533 then enters the top tile clearance groove 555 from the tile-raising curve groove 531a. Since the top tile clearance groove 555 coincides with the swing trajectory of the tile-raising rocker arm 532, the rolling of the tile-raising roller 533 in the top tile clearance groove 555 will not cause a change in the state of the inclined tile-raising plate 3. However, it will cause the top tile push rod 553 to pull against the top tile groove opening 522b, causing the top tile plate 551 to rise along the receiving groove 61 and push the mahjong tile upwards towards the end of the inclined tile-raising plate 3.

[0100] During the rolling of the card-adding roller 535 along the descending section 521a and the top section 521ba, the card-pushing roller 542 rolls from the midpoint 541a of the S-shaped card-pushing track 541 along the pushing stroke section 541b to the starting point 541d, ready to push the card. During this process, the rolling trajectory of the card-pushing roller 542 is exactly concentric with the rotation trajectory of the transmission cam 52, so the card storage plate 12 remains in a fixed position.

[0101] Subsequently, the first-stage pushing segment 521bb reaches the card-raising roller 535. The pushing roller 542 rolls along the pushing segment 541b from the starting point of the pushing stroke 541d, driving the card storage plate 12 to move along the support surface of the pushing seat 6 towards the inclined lifting plate 3 until the front end of the mahjong tile is placed on the inclined lifting plate 3. During this process, the card-raising curved groove 521 does not squeeze the card-raising roller 535, so the card-raising push rod 534 remains in the same position, the lifting rocker arm 532 and the top push rod 553 also remain in the same position, the inclined lifting plate 3 remains in its descending state waiting to receive the mahjong tile, while the top plate 551 remains in the top position.

[0102] Subsequently, the secondary push section 521bc reaches the card-raising roller 535, and the outer curved surface 521d squeezes the card-raising roller 535, causing the card-raising push rod 534 to drive the card-raising rocker arm 532 to swing away from the shuffling barrel. The card-raising roller 533 returns from the top card avoidance groove 555 to the card-raising curve groove 531a. The top card push rod 553 then presses down on the top card plate 551 to release the top card plate 551 from supporting the mahjong tiles. At this time, the top card roller 554 is still in the top card groove opening 522b. During this process, the push roller 542 continues to roll along the push section 541b to the midpoint of the track 541a, pushing the mahjong tiles completely flat onto the inclined card-raising plate 3.

[0103] Subsequently, the first-stage upward section 521ca reaches the card-raising roller 535, and the outer curved surface 521d continues to squeeze the card-raising roller 535, causing the card-raising push rod 534 to continue driving the card-raising rocker arm 532 to swing away from the shuffling barrel. The card-raising roller 533 rolls from the bottom of the groove 531ab along the card-raising curve groove 531a to the positioning groove 531aa, causing the inclined card-raising plate 3 to tilt upward until the side of the mahjong tiles facing the card storage plate 12 is exposed on the mahjong machine panel (100); during this process, the top roller 55 4. The top tile slot 522b rolls along the tile lifting clearance slot 552 to the bottom of the slot 552a, but the top tile plate 551 remains in the same position; the push tile roller 542 rolls from the midpoint of the track 541a along the return section 541c to the return start point 541e, ready for the return; during this process, the rolling trajectory of the push tile roller 542 is exactly concentric with the rotation trajectory of the transmission cam 52, so the tile storage plate 12 also remains in the same position, at its push tile end point, to protect the mahjong tiles on the inclined tile lifting plate 3;

[0104] Finally, the secondary upward section 521cb reaches the card-raising roller 535, and the outer curved surface 521d continues to squeeze the card-raising roller 535, causing the card-raising push rod 534 to continue to drive the card-raising rocker arm 532 to swing away from the shuffling barrel. The card-raising roller 533 continues to roll into the positioning slot 531aa of the card-raising curve groove 531a, causing the inclined card-raising plate 3 to rise to be flush with the mahjong machine panel 100, raising the mahjong tiles to the table. During this process, the card-top roller 554 continues to roll to the bottom 552a of the card-raising avoidance groove 552, waiting for the next card-top. Meanwhile, the card-pushing roller 542 rolls from the return start point 541e along the return section 541c to the midpoint 541a of the track, driving the card storage plate 12 back to the initial position.

Claims

1. A card-adding drive mechanism for a mahjong machine, characterized in that, include: Motor registration (51); A transmission cam (52) that is linked to the output shaft of the motor (51); A push-card transmission assembly (54) is provided between the transmission cam (52) and the card storage plate (12). The card storage plate (12) moves closer to or further away from the ramp-type card lifting plate (3) under the drive of the push-card transmission assembly (54). The movement trajectory of the card storage plate (12) extends to the bottom of the ramp-type card lifting plate (3). A card-lifting transmission assembly (53) is provided between the transmission cam (52) and the inclined card-lifting plate (3). The inclined card-lifting plate (3) is rotated relative to the mahjong machine panel (100) under the drive of the card-lifting transmission assembly (53). The aforementioned card-raising transmission assembly (53) includes: The card-raising seat (531) is fixed to the bottom surface of the inclined card-raising plate (3) and has a card-raising curved groove (531a); The lifting arm (532) has a fixed end that is hinged to the frame and a free end that has a lifting roller (533). The lifting roller (533) rolls with the lifting groove (531a) to drive the inclined lifting plate (3) to flip. A card-raising push rod (534) is provided, one end of which is fixedly connected to a card-raising rocker arm (532), and the other end of which is provided with a card-raising roller (535). The card-raising roller (535) rolls with a card-raising curved groove (521) opened on the transmission cam (52) to drive the card-raising rocker arm (532) to swing. The aforementioned lifting curve groove (531a) has a positioning groove (531aa) at a low position and a groove bottom at a high position, and a first limiting corner (531ac) is formed between the positioning groove (531aa) and the lifting curve groove (531a). The lifting roller (533) has a top support position that is located in the positioning groove (531aa) so that the inclined lifting plate (3) is flush with the mahjong machine panel (100), and a lifting position that rolls along the lifting curve groove (531a) so that the inclined lifting plate (3) rotates around its rotation center axis. The card-loading curved groove (521) includes a descending section (521a), a pushing section (521b), and an upward section (521c). The card-loading roller (535) has a descending position that rolls along the descending section (521a) to lower the inclined card-lifting plate (3), a pushing position that rolls along the pushing section (521b) to move the card storage plate (12) toward the inclined card-lifting plate (3) and pushes the mahjong tiles onto the inclined card-lifting plate (3), and an upward position that rolls along the upward section (521c) to raise the inclined card-lifting plate (3).

2. The mahjong machine card-adding drive mechanism as described in claim 1, characterized in that, The card pushing transmission assembly (54) includes an S-shaped card pushing track (541) located on the bottom surface of the card storage plate (12). The S-shaped card pushing track (541) includes a pushing section (541b) and a return section (541c) symmetrically arranged about the center point (541a) of the track. The end of the pushing section (541b) away from the center point (541a) of the track is the pushing start point (541d), and the end of the return section (541c) away from the center point (541a) of the track is the return start point (541e). Both the pushing section (541b) and the return section (541c) are arc-shaped and the central angle of the arc is 90°. The transmission cam (52) has a pusher roller (542) in a radial position that rolls with the S-shaped pusher track (541). The pusher roller (542) has a pusher preparation position that rolls from the midpoint (541a) of the track along the push section (541b) to the push start point (541d), a pusher position that rolls from the push start point (541d) along the push section (541b) to the midpoint (541a) of the track to move the storage plate (12) toward the ramp-type lifting plate (3), a return preparation position that rolls from the midpoint (541a) along the return section (541c) to the return start point (541e), and a return position that rolls from the return start point (541e) along the return section (541c) to the midpoint (541a) of the track to return the storage plate (12) to the initial position. The card storage board (12) includes a card storage platform (12a) with a card storage guardrail (12b) on the side of the card storage platform (12a) away from the longitudinal direction of the inclined card lifting board (3).

3. The mahjong machine card-adding drive mechanism as described in claim 2, characterized in that, The upturned section (521c) includes a primary upturned section (521c) and a secondary upturned section (521c). The card-raising roller (535) has a primary upturned position that rolls along the primary upturned section (521c) to make the ramp-type card-raising plate (3) upturned, and a secondary upturned position that rolls along the secondary upturned section (521c) to make the ramp-type card-raising plate (3) continue to upturn while making the card-storage plate (12) return to its initial position.

4. The mahjong machine card-adding drive mechanism as described in claim 3, characterized in that, The storage plate (12) is provided with a top opening (12f), and the distance between the top opening (12f) and the inclined lifting plate (3) is less than the width or length of a mahjong tile; Below the top tile opening (12f) is a top tile plate (551) for lifting the end of the mahjong tile toward the inclined tile lifting plate (3) upwards. Between the top tile plate (551) and the transmission cam (52) is a top tile assembly (55) for driving the top tile plate (551) to rise and fall.

5. The mahjong machine card-adding drive mechanism as described in claim 4, characterized in that, The top card component (55) includes: A push card holder (6) has a receiving groove (61) formed on its top surface for accommodating the top card plate (551); Top plate push rod (553), one end of which is fixedly connected to the lifting rocker arm (532), and the other end of which is rotatably connected to the top plate plate (551) to drive the top plate plate (551) to rise and fall along the receiving groove (61); The card-raising base (531) also has a top card avoidance groove (555) that communicates with the bottom (531ab) of the card-raising curve groove (531a). The top card avoidance groove (555) extends from the bottom of the card-raising curve groove (531a) to the side away from the inclined card-raising plate (3) and coincides with the swing trajectory of the card-raising rocker arm (532).

6. The mahjong machine card-adding drive mechanism as described in claim 5, characterized in that, The card storage plate (12) is driven to move along the top surface of the card pusher (6); The side of the push card holder (6) is formed with at least one through opening (62) that communicates with the receiving groove (61). The top card plate (551) has a push card holder (6) extending from the through opening (62) to the outside of the push card holder (6). The top card push rod (553) is rotatably connected to the push card holder (6). The pusher seat (6) has a pusher slot (552) for raising the card and the end of the pusher rod (553) is rotatably connected to a pusher roller (554) that rolls with the pusher slot (552). The top plate roller (554) rolls along the lifting plate curve groove (531a) as the lifting plate roller (533) rolls along the lifting plate clearance groove (552) but does not drive the top plate plate (551) to rise or fall.

7. The mahjong machine card-adding drive mechanism as described in claim 5 or 6, characterized in that, In the aforementioned card-feeding curved groove (521), the card-pushing section (521b) includes a top card section (521ba), a first-level card-pushing section (521b), and a second-level card-pushing section (521b) connected in sequence. The card-feeding roller also has a top card position that drives the card-lifting roller (533) to roll along the top card clearance groove (555) so that the top card push rod (553) lifts the top card plate (551). The rolling motion causes the storage plate (12) to move towards the inclined lifting plate (3) to partially push the mahjong tiles onto the first-level pushing position on the inclined lifting plate (3), and the rolling motion along the second-level pushing section (521b) causes the lifting roller (533) to roll in the opposite direction along the top tile clearance groove (555) so that the top tile push rod (553) releases its support on the top tile plate (551) and causes the storage plate (12) to completely push the mahjong tiles onto the second-level pushing position on the inclined lifting plate (3).

Images