Mahjong stacking and feeding structure of mahjong machine

Abstract

The utility model relates to a mahjong stacking and feeding structure of a mahjong machine. The technical problem that existing transmission is poor in stability is solved. Comprising a tile storage track frame with a tile stacking groove, a tile stacking seat is arranged in the tile stacking groove, a tile conveying seat is arranged on one side of the tile stacking groove, a cam mounting groove is formed in the tile storage track frame, a stacking and conveying cam is arranged in the cam mounting groove, and the stacking and conveying cam is connected with a cam rotation driving mechanism capable of driving the stacking and conveying cam to rotate in the circumferential direction. A tile stacking transmission assembly for driving the tile stacking seat to lift up and down in the tile stacking groove when the stacking cam rotates in the circumferential direction is arranged between the stacking cam and the tile stacking seat, and a tile conveying transmission assembly for driving the tile conveying seat to move from one side of the tile stacking groove to the other side of the tile stacking groove when the stacking cam rotates in the circumferential direction is arranged between the stacking cam and the tile conveying seat. The mahjong machine has the advantages that the mahjong stacking cam is used for simultaneously controlling the operation of the mahjong feeding seat and the mahjong stacking seat, the mahjong feeding seat is connected with the mahjong stacking cam through the mahjong stacking transmission assembly, the mahjong feeding seat is connected with the mahjong stacking cam through the mahjong feeding transmission assembly, the structure is simple, and the transmission effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of mahjong machine equipment, and particularly relates to a card stacking and sending structure for a mahjong machine. Background Art

[0002] The stacking head is a crucial component of an automatic mahjong machine. It features a stacking mechanism and a card feeding mechanism, which organize and deliver the tiles to the storage tray. Existing stacking heads have numerous drawbacks. For example, the stacking head's bulk increases the overall size of the machine, while the numerous internal components lead to poor transmission stability.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, the Chinese patent document discloses a vertical stacking card structure and mahjong machine [202010462634.4], which includes a vertical cam, a card holder and a card pushing part. The axis of the vertical cam is vertically arranged, and the upper end face of the vertical cam is provided with an annular outer edge, and the outer edge is provided with a notch; the card holder is provided with a first roller that contacts and cooperates with the outer edge of the vertical cam and is configured to drive the card holder to rise and fall by rotating the vertical cam; the card pushing part is provided with a card pushing drive mechanism, and the card pushing drive mechanism is configured to drive the card pushing part to pass above the card holder.

[0004] The above solution solves the problem of the large structure of the existing stacking machine head to a certain extent, but the solution still has many shortcomings, such as poor transmission stability. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a card stacking and card feeding structure for a mahjong machine.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solutions: a card stacking and feeding structure for a mahjong machine, comprising a card storage track frame having an inwardly recessed card stacking slot, a card stacking seat movably disposed within the card stacking slot, a card delivery seat movably disposed on one side of the card stacking slot, a cam mounting slot disposed on the card storage track frame, a stacking delivery cam disposed within the cam mounting slot, the stacking delivery cam being connected to a cam rotation drive mechanism capable of driving the stacking delivery cam in circumferential rotation, a card stacking transmission assembly disposed between the stacking delivery cam and the card stacking seat for driving the stacking delivery seat to move up and down within the card stacking slot when the stacking delivery cam rotates circumferentially, a card delivery transmission assembly disposed between the stacking delivery cam and the card delivery seat for driving the card delivery seat from one side of the card stacking slot to the other side when the stacking delivery cam rotates circumferentially, the card stacking seat being connected to the card stacking cam via the card stacking transmission assembly, the card delivery seat being connected to the card stacking cam via the card delivery transmission assembly, and the card stacking cam being connected to the cam rotation drive mechanism, resulting in a simple structure and good transmission effect.

[0007] In the aforementioned stacking and feeding structure for a mahjong machine, the card feeding transmission assembly includes a card feeding frame, one end of which is connected to a card feeding seat and the other end of which is pivotally mounted on one side of a cam mounting slot via a card feeding frame hinge shaft. A disc cam reciprocating mechanism is provided on the upper end of the stacking and feeding cam, which is linked to the card feeding frame. The card feeding frame is fixedly connected to the card feeding seat at one end and movably connected to the cam mounting slot at the other end, and the disc cam reciprocating mechanism is used to control the operation of the card feeding frame.

[0008] In the aforementioned stacking and feeding structure for a mahjong machine, the disc cam reciprocating mechanism includes a disc-shaped cam portion disposed at the upper end of the stacking and feeding cam, the disc-shaped cam portion having a cam groove in the form of a closed curve. The card feed frame has a card feed pin slidably disposed in the cam groove at one end thereof, adjacent to the card feed frame hinge axis. The card feed frame is connected to the cam groove of the disc-shaped cam portion via the card feed pin, and rotation of the stacking and feeding cam drives the card feed frame.

[0009] In the aforementioned mahjong machine stacking and feeding structure, the disc-shaped cam portion is integrally formed at the upper end of the stacking and feeding cam and is coaxially arranged therewith. The disc-shaped cam portion comprises an outer closed curve ring, each end of which comprises an outwardly convex arc portion, the width of which is greater than the width of the middle portion of the outer closed curve ring. An inner closed curve ring is provided on the inner side of the outer closed curve ring, matching the outer closed curve ring's profile and smaller in size. The outer and inner closed curve rings are coaxially arranged, and the cam groove is formed between the outer and inner closed curve rings. The outer and inner closed curve rings are used to limit the trajectory of the card feeding shaft pin and also ensure the stable movement of the card feeding shaft pin within the cam groove.

[0010] In the above-mentioned mahjong machine stacking and feeding structure, the card feeding frame is bent and includes a first horizontal card feeding rod which is horizontally arranged and fixedly connected to the upper end of the card feeding seat at one end. The other end of the first horizontal card feeding rod has a downwardly bent vertical card feeding rod, and one end of the vertical card feeding rod has a horizontally bent second horizontal card feeding rod. The card feeding shaft pin is arranged at the bending position of the second horizontal card feeding rod and the card feeding frame hinge shaft is arranged at the end of the second horizontal card feeding rod away from the vertical card feeding rod.

[0011] In the aforementioned mahjong machine card stacking and feeding structure, the card stacking transmission assembly includes a curved card stacking frame, a horizontal transverse slot disposed horizontally on one side of the card stacking frame, and a lifting pin movably disposed within the transverse slot at one end of the card stacking frame. The other end of the card stacking frame is connected to a cylindrical cam reciprocating mechanism located circumferentially outward of a stacking and feeding cam, and the central portion of the card stacking frame is pivotally disposed within the cam mounting slot via a card stacking frame hinge shaft. The card stacking frame is connected to the transverse slot of the card stacking frame via the lifting pin, and the card stacking frame is secured to the cam mounting slot via the card stacking frame hinge shaft. The operation of the card stacking frame is controlled by the cylindrical cam reciprocating mechanism.

[0012] In the aforementioned mahjong machine stacking and feeding structure, the cylindrical cam reciprocating mechanism includes a curved groove disposed circumferentially outside the stacking and feeding cam. The curved groove has an ascending section, a descending section, and a transition section. A stacking frame is provided at one end with a stacking frame pivot pin movably disposed within the curved groove. The stacking frame pivot pin is disposed within the curved groove, and when the stacking and feeding cam rotates, the stacking frame is moved along with it.

[0013] In the aforementioned mahjong machine stacking and feeding structure, the stacking and feeding cam includes an upper cam half and a lower cam half disposed in corresponding upper and lower positions. The upper cam half has a first curved track at one end proximate to the lower cam half, and the lower cam half has a second curved track at one end proximate to the upper cam half. The first and second curved tracks are disposed in corresponding upper and lower positions, and the curved groove is formed between the first and second curved tracks. The first and second curved tracks are used to limit the trajectory of the stacking frame's pivot pin and also ensure stable movement of the stacking frame's pivot pin within the curved groove.

[0014] In the aforementioned mahjong machine stacking and feeding structure, a movable rotating seat is movably mounted on the upper end of the stacking seat via magnetic attraction, and an arcuate groove is formed at the lower end of the movable rotating seat. A guide block that matches the arcuate groove is provided at the upper end of the stacking seat, and a plurality of vertically arranged guide rods are provided at the lower end of the stacking seat. The guide rods are movably inserted into guide holes in the stacking groove. The cooperation between the guide rods and the guide holes serves to guide the stacking seat.

[0015] In the aforementioned mahjong machine stacking and feeding structure, the cam rotation drive mechanism includes a motor frame disposed at the lower end of a card storage track frame, the motor frame being equipped with a drive motor, the output shaft of the drive motor being connected to a worm gear transmission assembly, and the stacking cam being connected to the worm gear transmission assembly via a camshaft. The worm gear transmission assembly includes a worm wheel and a worm, the worm being connected to the output shaft of the drive motor, the worm wheel being connected to the stacking cam via a camshaft, and the worm wheel and worm being meshed with each other.

[0016] Compared with the existing technology, the advantages of this utility model are:

[0017] 1. The device uses a stacking cam to simultaneously control the operation of the card feeding seat and the card stacking seat. The card feeding seat is connected to the stacking cam through a card stacking transmission component, and the card feeding seat is connected to the stacking cam through a card feeding transmission component. The structure is simple and the transmission effect is good.

[0018] 2. The structural design of the cylindrical cam reciprocating mechanism and the disc cam reciprocating mechanism of the device ensures the stable output of the card stacking rack and the card feeding rack, thereby ensuring the stable operation of the card stacking stand and the card feeding stand. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 It is a structural schematic diagram of the Zhongchu brand track frame of the present utility model.

[0021] Figure 3 It is a structural diagram of the cam rotation drive mechanism in the utility model.

[0022] Figure 4 It is a structural schematic diagram of the card stacking stand in the utility model.

[0023] Figure 5 It is a structural diagram of the card stacking stand in the utility model.

[0024] Figure 6 It is a structural diagram of the card delivery rack in the utility model.

[0025] Figure 7 It is a structural diagram of the disc-shaped cam reciprocating mechanism in the utility model.

[0026] Figure 8 It is a structural schematic diagram of the upper cam half body of the utility model.

[0027] Figure 9 It is a structural schematic diagram of the lower cam half body in the utility model.

[0028] In the figure: card storage track frame 1, card stacking slot 11, cam mounting slot 12, card stacking seat 2, transverse slot 21, movable rotating seat 22, arc slot 23, guide block 24, guide rod 25, guide hole 26, card feeding seat 3, stacking cam 4, upper cam half body 41, lower cam half body 42, first curved track 43, second curved track 44, cam rotation drive mechanism 5, motor frame 51, drive motor 52, worm gear transmission assembly 53, cam shaft 54, card stacking transmission assembly 6, Card stacking rack 61, lifting shaft pin 62, card stacking rack hinge shaft 63, card stacking rack shaft pin 64, card feeding transmission assembly 7, card feeding rack 71, first horizontal card feeding rod 711, vertical card feeding rod 712, second horizontal card feeding rod 713, card feeding rack hinge shaft 72, disc cam reciprocating mechanism 73, disc cam portion 74, cam groove 75, card feeding shaft pin 76, outer closed curve ring 77, outer convex arc portion 78, inner closed curve ring 79, cylindrical cam reciprocating mechanism 8, curved groove 81. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] like Figure 1-9 As shown, a mahjong machine stacking and feeding structure includes a card storage track frame 1 having an inwardly recessed card stacking slot 11, a card stacking seat 2 movably disposed within the card stacking slot 11, and a card feeding seat 3 movably disposed on one side of the card stacking slot 11. The card storage track frame 1 is provided with a cam mounting slot 12, a stacking and feeding cam 4 disposed within the cam mounting slot 12, and the stacking and feeding cam 4 is connected to a cam rotation drive mechanism 5 capable of driving the stacking and feeding cam 4 in circumferential rotation. A card stacking transmission assembly 6 is disposed between the stacking and feeding cam 4 and the card stacking seat 2, which drives the card stacking seat 2 up and down within the card stacking slot 11 when the stacking and feeding cam 4 rotates circumferentially. A card feeding transmission assembly 7 is disposed between the stacking and feeding cam 4 and the card feeding seat 3, which drives the card feeding seat 3 from one side of the card stacking slot 11 to the other side when the stacking and feeding cam 4 rotates circumferentially. The card stacking seat 2 is connected to the card stacking and feeding cam 4 via the card stacking and feeding transmission assembly 6, and the card feeding seat 3 is connected to the card stacking and feeding cam 4 via the card feeding transmission assembly 7. At the same time, the card stacking and feeding cam 4 is connected to the cam rotation drive mechanism 5, resulting in a simple structure and good transmission effect.

[0031] like Figure 6 As shown, the card feeding transmission assembly 7 includes a card feeding frame 71, one end of which is connected to the card feeding base 3 and the other end of which is rotatably mounted on one side of the cam mounting slot 12 via a card feeding frame hinge shaft 72. A disc cam reciprocating mechanism 73 is provided on the upper end of the stacking cam 4 and is linked to the card feeding frame 71. The card feeding frame 71 is fixedly connected to the card feeding base 3 at one end and movably connected to the cam mounting slot 12 at the other end. The disc cam reciprocating mechanism 73 is used to control the operation of the card feeding frame 71.

[0032] like Figure 7As shown, the disc cam reciprocating mechanism 73 includes a disc-shaped cam portion 74 disposed at the upper end of the stack feed cam 4. The disc-shaped cam portion 74 has a closed curved cam groove 75 therein. The card feed frame 71 has a card feed pin 76 slidably disposed within the cam groove 75 at one end thereof, adjacent to the card feed frame hinge shaft 72. The card feed frame 71 is connected to the cam groove 75 of the disc-shaped cam portion 74 via the card feed pin 76. When the stack feed cam 4 rotates, the card feed frame 71 is driven to move.

[0033] The disc-shaped cam portion 74 is integrally formed at the upper end of the stacking cam 4 and is coaxially arranged therewith. The disc-shaped cam portion 74 includes an outer closed curve ring 77, each end of which has an outwardly convex arc portion 78, the width of which is greater than the width of the middle portion of the outer closed curve ring 77. An inner closed curve ring 79 is provided on the inner side of the outer closed curve ring 77, which matches the outer closed curve ring 77 in shape but is smaller in size. The outer and inner closed curve rings 77 and 79 are coaxially arranged, and the cam groove 75 is formed between the outer and inner closed curve rings 77 and 79. The outer and inner closed curve rings 77 and 79 are used to limit the running trajectory of the card feeding shaft pin 76 and also ensure that the card feeding shaft pin 76 moves stably within the cam groove 75.

[0034] like Figure 6 As shown, the card feeding rack 71 is bent and includes a first horizontal card feeding rod 711 which is horizontally arranged and fixedly connected to the upper end of the card feeding seat 3 at one end. The other end of the first horizontal card feeding rod 711 has a downwardly bent vertical card feeding rod 712. One end of the vertical card feeding rod 712 has a horizontally bent second horizontal card feeding rod 713. The card feeding shaft pin 76 is arranged at the bending position of the second horizontal card feeding rod 713 and the card feeding rack hinge shaft 72 is arranged at one end of the second horizontal card feeding rod 713 away from the vertical card feeding rod 712.

[0035] Combine Figure 4 and Figure 5 As shown, the stacking transmission assembly 6 includes a curved stacking frame 61. A horizontal slot 21 is horizontally provided on one side of the stacking base 2. One end of the stacking frame 61 is provided with a lifting shaft pin 62 movably disposed within the horizontal slot 21. The other end of the stacking frame 61 is connected to the cylindrical cam reciprocating mechanism 8 located circumferentially outside the stacking cam 4. The middle portion of the stacking frame 61 is rotatably disposed inside the cam mounting slot 12 via a stacking frame hinge shaft 63. The stacking frame 61 is connected to the horizontal slot 21 of the stacking base 2 via the lifting shaft pin 62. The stacking frame 61 is fixed to the cam mounting slot 12 via the stacking frame hinge shaft 63. At the same time, the operation of the stacking frame 61 is controlled by the cylindrical cam reciprocating mechanism 8.

[0036] like Figure 3As shown, the cylindrical cam reciprocating mechanism 8 includes a curved groove 81 disposed on the circumferential outer side of the stacking cam 4. The curved groove 81 has an ascending section, a descending section, and a transition section. A stacking frame 61 is provided with a stacking frame pivot pin 64 movably disposed within the curved groove 81 at one end. The stacking frame pivot pin 64 is disposed within the curved groove 81, and when the stacking cam 4 rotates, it moves with the stacking frame 61.

[0037] Combine Figure 8 and Figure 9 As shown, the stacking cam 4 includes an upper cam half 41 and a lower cam half 42, which are arranged in a corresponding manner in the upper and lower directions. The upper cam half 41 has a first curved track 43 at its end near the lower cam half 42, and the lower cam half 42 has a second curved track 44 at its end near the upper cam half 41. The first curved track 43 and the second curved track 44 are arranged in a corresponding manner in the upper and lower directions, and a curved groove 81 is formed between the first curved track 43 and the second curved track 44. The first curved track 43 and the second curved track 44 are used to limit the running trajectory of the stacking frame shaft pin 64, while also ensuring that the stacking frame shaft pin 64 moves stably within the curved groove 81.

[0038] Combine Figure 2 and Figure 4 As shown, the upper end of the card stacking stand 2 is movably provided with a movable rotating seat 22 by magnetic attraction, and the lower end of the movable rotating seat 22 has an arc-shaped groove 23. The upper end of the card stacking stand 2 is provided with a guide block 24 that matches the arc-shaped groove 23. The lower end of the card stacking stand 2 is provided with a plurality of vertically arranged guide rods 25, and the guide rods 25 are movably provided in the guide holes 26 located in the card stacking groove 11. The mutual cooperation between the guide rods 25 and the guide holes 26 plays a guiding role in the card stacking stand 2.

[0039] like Figure 3 As shown, the cam rotation drive mechanism 5 includes a motor frame 51 disposed at the lower end of the card storage track frame 1. The motor frame 51 is equipped with a drive motor 52. The output shaft of the drive motor 52 is connected to a worm gear transmission assembly 53. The stacking cam 4 is connected to the worm gear transmission assembly 53 via a camshaft 54. The worm gear transmission assembly 53 includes a worm wheel and a worm. The worm wheel is connected to the output shaft of the drive motor 52. The worm wheel is connected to the stacking cam 4 via the camshaft 54. The worm wheel and the worm are meshed with each other.

[0040] The principle of this embodiment is:

[0041] The driving motor 52 is connected to the stacking and feeding cam 4 through the worm gear transmission assembly 53, and the card stacking rack 61 is movably connected to the curved groove 81 of the stacking and feeding cam 4 through the card stacking rack shaft pin 64. The lifting shaft pin 62 of the card stacking rack 61 is connected to the transverse groove 21 of the card stacking seat 2. At the same time, the card stacking rack hinge shaft 63 of the card stacking rack 61 is fixed to the card storage track frame 1, and the card feeding rack 71 is movably connected to the cam groove 75 of the stacking and feeding cam 4 through the card feeding shaft pin 76. The card feeding rack 71 is fixedly connected to the card feeding seat 3 at one end away from the card feeding rack hinge shaft 72. At the same time, the card feeding rack hinge shaft 72 of the card feeding rack 71 is fixed to the card storage track frame 1. When the driving motor 52 runs, it drives the stacking and feeding cam 4, and makes the card stacking seat 2 and the card feeding seat 3 run simultaneously under the control of the card stacking rack 61 and the card feeding rack 71.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0043] Although this article uses more card storage track frame 1, stacking slot 11, cam mounting slot 12, stacking seat 2, transverse slot 21, movable rotating seat 22, arc slot 23, guide block 24, guide rod 25, guide hole 26, card feeding seat 3, stacking cam 4, upper cam half body 41, lower cam half body 42, first curved track 43, second curved track 44, cam rotation drive mechanism 5, motor frame 51, drive motor 52, worm gear transmission assembly 53, cam shaft 54, stacking transmission assembly 6, stacking frame 61, The terms such as the lifting shaft pin 62, the stacking frame hinge shaft 63, the stacking frame shaft pin 64, the card feeding transmission assembly 7, the card feeding frame 71, the first horizontal card feeding rod 711, the vertical card feeding rod 712, the second horizontal card feeding rod 713, the card feeding frame hinge shaft 72, the disc cam reciprocating mechanism 73, the disc cam portion 74, the cam groove 75, the card feeding shaft pin 76, the outer closed curve ring 77, the outer convex arc portion 78, the inner closed curve ring 79, the barrel cam reciprocating mechanism 8, and the curved groove 81 are used, but the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A mahjong machine stacking and feeding structure, comprising a card storage track frame (1) having an inwardly concave stacking slot (11), a stacking seat (2) movably provided in the stacking slot (11), and a card feeding seat (3) movably provided on one side of the stacking slot (11), characterized in that: The card storage track frame (1) is provided with a cam mounting groove (12), a stacking cam (4) is provided in the cam mounting groove (12), and the stacking cam (4) is connected to a cam rotation driving mechanism (5) capable of driving the stacking cam (4) to rotate circumferentially. A stacking transmission component (6) is provided between the stacking cam (4) and the card stacking seat (2), which drives the card stacking seat (2) to move up and down in the stacking groove (11) when the stacking cam (4) rotates circumferentially. A card delivery transmission component (7) is provided between the stacking cam (4) and the card delivery seat (3), which drives the card delivery seat (3) to move from one side of the stacking groove (11) to the other side when the stacking cam (4) rotates circumferentially.

2. A mahjong machine stacking and feeding card structure according to claim 1, characterized in that: The card feeding transmission assembly (7) includes a card feeding frame (71), one end of which is connected to the card feeding seat (3) and the other end of which is rotatably arranged on one side of the cam mounting groove (12) through a card feeding frame hinge shaft (72). The upper end of the stacking cam (4) is provided with a disc cam reciprocating mechanism (73) that is linked to the card feeding frame (71).

3. A mahjong machine stacking and feeding structure according to claim 2, characterized in that: The disc cam reciprocating mechanism (73) includes a disc cam portion (74) arranged at the upper end of the stacking cam (4), the disc cam portion (74) having a cam groove (75) in the shape of a closed curve, and the card feeding frame (71) has a card feeding shaft pin (76) slidably arranged in the cam groove (75) at one end thereof close to the card feeding frame hinge shaft (72).

4. A mahjong machine stacking and feeding structure according to claim 3, characterized in that: The disc-shaped cam portion (74) is integrally formed at the upper end of the stacking cam (4) and is coaxially arranged with the stacking cam (4). The disc-shaped cam portion (74) has an outer closed curve ring (77). Both ends of the outer closed curve ring (77) respectively have an outer convex arc portion (78), and the width of the outer convex arc portion (78) is greater than the width of the middle portion of the outer closed curve ring (77). An inner closed curve ring (79) that matches the outer shape of the outer closed curve ring (77) and is smaller in size than the outer closed curve ring (77) is provided on the inner side of the outer closed curve ring (77). The outer closed curve ring (77) and the inner closed curve ring (79) are coaxially arranged, and the cam groove (75) is formed between the outer closed curve ring (77) and the inner closed curve ring (79).

5. A mahjong machine stacking and feeding structure according to claim 3 or 4, characterized in that: The card feeding frame (71) is bent and comprises a first horizontal card feeding rod (711) which is arranged horizontally and fixedly connected to the upper end of the card feeding seat (3) at one end; the other end of the first horizontal card feeding rod (711) is provided with a vertical card feeding rod (712) bent downward; one end of the vertical card feeding rod (712) is provided with a second horizontal card feeding rod (713) which is bent horizontally; the card feeding shaft pin (76) is arranged at the bending position of the second horizontal card feeding rod (713); and the card feeding frame hinge shaft (72) is arranged at one end of the second horizontal card feeding rod (713) away from the vertical card feeding rod (712).

6. A mahjong machine stacking and feeding structure according to claim 5, characterized in that: The stacking transmission assembly (6) includes a bent stacking frame (61), a horizontal groove (21) is horizontally arranged on one side of the stacking seat (2), and a lifting shaft pin (62) is movably arranged in the horizontal groove (21) at one end of the stacking frame (61). The other end of the stacking frame (61) is connected to a cylindrical cam reciprocating mechanism (8) located on the circumferential outside of the stacking cam (4), and the middle part of the stacking frame (61) is rotatably arranged on the inner side of the cam mounting groove (12) through a stacking frame hinge shaft (63).

7. A mahjong machine stacking and delivering card structure according to claim 6, characterized in that: The cylindrical cam reciprocating mechanism (8) includes a curved groove (81) arranged on the circumferential outer side of the stacking cam (4), the curved groove (81) having an ascending section, a descending end and a transition section, and one end of the stacking frame (61) is provided with a stacking frame shaft pin (64) movably arranged in the curved groove (81).

8. A mahjong machine stacking and delivering card structure according to claim 7, characterized in that: The stacking cam (4) comprises an upper cam half (41) and a lower cam half (42) which are arranged correspondingly in the upper and lower parts. The upper cam half (41) has a first curved track (43) at one end thereof close to the lower cam half (42), and the lower cam half (42) has a second curved track (44) at one end thereof close to the upper cam half (41). The first curved track (43) and the second curved track (44) are arranged correspondingly in the upper and lower parts, and the curved groove (81) is formed between the first curved track (43) and the second curved track (44).

9. A mahjong machine stacking and feeding card structure according to claim 1, characterized in that: The upper end of the card stacking seat (2) is provided with a movable rotating seat (22) by magnetic attraction, and the lower end of the movable rotating seat (22) has an arc groove (23). The upper end of the card stacking seat (2) is provided with a guide block (24) matching the arc groove (23), and the lower end of the card stacking seat (2) is provided with a plurality of vertically arranged guide rods (25), and the guide rods (25) are movably inserted into the guide holes (26) located in the card stacking groove (11).

10. A mahjong machine stacking and feeding structure according to claim 1, characterized in that: The cam rotation driving mechanism (5) comprises a motor frame (51) arranged at the lower end of the card storage track frame (1), a driving motor (52) is provided on the motor frame (51), an output shaft of the driving motor (52) is connected to a worm gear transmission assembly (53), and the stacking cam (4) is connected to the worm gear transmission assembly (53) via a cam shaft (54).

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