A multifunctional card stacking module for a vertical automatic mahjong machine

Abstract

The present invention discloses a multifunctional card stacking and loading module for a vertical lifting automatic mahjong machine, which is used to stack mahjong cards sent from a shuffling plate and lift the stacked mahjong cards onto a mahjong tabletop. The module includes a driving motor, a card stacking magnetic mechanism stacks the mahjong cards into a group, the driving motor pushes each group of stacked mahjong cards to a card receiving plate by forward rotation, and the driving motor pushes the mahjong cards stacked on the card receiving plate to a card lifting rack and lifts the mahjong tabletop by reverse rotation. The module of this scheme makes full use of the forward and reverse rotation of the motor and the card stacking magnetic mechanism, and only one motor is needed to complete all the actions of stacking cards, sending cards, pushing cards, and lifting cards. The module has a high degree of integration, is easy to install and maintain, has the characteristics of small space occupation, and high stability, and in particular, only one motor is needed to realize all the functions that require two or more motors in the prior art, which greatly reduces the product cost and has strong market competitiveness.

Description

Technical Field

[0001] The invention relates to the field of automatic mahjong machines, and in particular to a multifunctional card stacking and loading module for a vertical automatic mahjong machine. Background Art

[0002] Mahjong is a traditional mass entertainment and leisure activity. The existing automatic mahjong machine needs to pick up the magnetic mahjong tiles in the shuffle tray and stack them (basically stacked into double layers), and then use a card pushing mechanism to push the mahjong tiles to a designated position, and finally send them to the mahjong table for players to entertain.

[0003] The general action flow of the existing automatic vertical lifting mahjong machine is: shuffling, sucking cards, stacking cards, delivering cards, pushing cards, and raising cards. In the early automatic vertical lifting mahjong machines, the four actions of stacking cards, delivering cards, pushing cards, and raising cards usually require three or more motors to achieve automatic operation. After some manufacturers have made improvements, one motor can achieve multiple actions through the forward and reverse rotation of the one-way bearing motor. Through complex gear or connecting rod transmission, the improved version still requires two or more motors to achieve automatic operation. Although the reduction in the number of motors reduces costs, the transmission mechanism is complex and the installation and maintenance are difficult. Especially in the actions of raising and pushing cards, since a whole row of mahjong needs to be raised from the casing to the table, the structural strength and stability of the lifting mechanism are required to be higher, which also greatly increases the cost of processing and manufacturing.

[0004] Since the traditional mahjong machine uses a single motor to drive the card pushing and lifting mechanism, the card pushing mechanism is driven by a single arm, so a fixed block or a horizontal slide bar is required to ensure the parallel and stable horizontal movement of the push plate. For example, ZL 201120373309.7 "Center card lifting mechanism for automatic mahjong table" uses a fixed block and a push plate to push the card. This structure has poor stability, the single arm is subjected to a large force, and the space occupied during installation is large. In order to ensure stability, the traditional card lifting mechanism uses two metal vertical slide bars (the slide bar 18 in the above patent ZL201120373309.7) welded under the card lifting frame, and two vertical sliding sleeves are installed on the base. Since the card lifting frame needs to support an entire row of mahjong, the vertical sliding sleeve needs to be welded and fixed on the base to ensure stability and no shaking. Since it involves multiple steps of welding, more processing procedures and higher processing accuracy requirements, this leads to an increase in production and maintenance costs.

[0005] There are also very few devices on the market that can complete three actions with one motor, but the structure is extremely complex and the installation and maintenance costs are very high. For example, ZL201920207333.X "A card lifting and pushing device for a mahjong machine", when the motor shaft rotates clockwise, it drives the forward rotating unit to drive the card lifting mechanism and the card pushing mechanism to move. When the motor rotates counterclockwise, the forward rotating unit remains stationary under the action of the one-way transmission part, and the card lifting mechanism and the card pushing mechanism are in a non-working state. The device can complete another action when it is reversed, but the device still cannot complete the four actions of stacking cards, feeding cards, pushing cards, and lifting cards.

[0006] Based on the above problems existing in the existing automatic mahjong machines, the present invention has made corresponding improvements and provided new solutions to the structure of the traditional automatic mahjong machines. Summary of the invention

[0007] In view of the above problems, the present invention aims to provide a multifunctional card stacking and loading module for a vertical automatic mahjong machine with high integration, low installation and production cost, and easy maintenance.

[0008] To achieve the technical purpose, the solution of the present invention is: a multifunctional card stacking and loading module for a vertical lifting automatic mahjong machine, the module is used to stack the mahjong tiles transmitted from the shuffling tray and lift the stacked mahjong tiles onto the mahjong tabletop, the module includes a card stacking magnetic mechanism and a driving motor installed on a module frame, the card stacking magnetic mechanism stacks the mahjong tiles transmitted from the shuffling tray into a group of two tiles, the driving motor pushes each group of stacked mahjong tiles to a card receiving plate through forward driving, and the driving motor pushes the mahjong tiles stacked on the card receiving plate to the card lifting frame and lifts them onto the mahjong tabletop through reverse driving.

[0009] Preferably, the output shaft of the driving motor is equipped with a forward bearing and a reverse bearing, both of which are one-way bearings; the forward bearing is driven and connected to a card feeding mechanism, which reciprocates to continuously push each group of stacked mahjong tiles to the card receiving plate when the driving motor rotates forward, and is not driven and stops when the driving motor rotates reversely; the reverse bearing is driven and connected to a card pushing and lifting mechanism with a card lifting rack, which can push the mahjong tiles stacked on the card receiving plate to the card lifting rack when the driving motor rotates reversely, and then continue to drive the card lifting rack to be lifted onto the mahjong table top, and is not driven and stops when the driving motor rotates forward.

[0010] Preferably, the card stacking magnetic mechanism is a base body with a card-attracting magnet, and the card-attracting magnet is placed at the bottom of the base body and can absorb the mahjong tiles with the suit facing downwards so that they can lie flat and stack; the card feeding mechanism includes a driving arm, a slide rail and a card feeding rack; one end of the driving arm is installed on a positive bearing, and the other end is movably connected to the card feeding rack, and the rotation of the driving arm drives the card feeding rack to reciprocate back and forth on the slide rail; the card feeding rack has a card feeding plate extending into the top of the base body of the card stacking magnetic mechanism, and the card feeding plate feeds the stacked mahjong cards into the card receiving plate.

[0011] Preferably, the card pushing and lifting mechanism includes a gear group, a card pushing plate, and a card lifting frame. The card pushing plate is located on one side of the card bearing plate, and the card lifting frame is located on the other side of the card bearing plate. The card lifting frame has a card bearing table and a frame plate located at the bottom of the table. When the card lifting frame is not lifted, the horizontal plane of the card bearing table is not higher than the horizontal plane of the card bearing plate. The gear group is connected to the reverse bearing drive, and the gear group is provided with a lifting push rod on one side of the card lifting frame to drive the card lifting frame to move up and down. The gear group is provided with an axial cam on one side of the card pushing plate to drive the card pushing plate to move toward the side of the card lifting frame. The gear group is set so that when the axial cam drives the card pushing plate to move toward the side of the card lifting frame, the card bearing table of the card lifting frame is at the lowest position, and when the lifting push rod drives the card lifting frame to start moving upward, the card pushing plate has been reset away from the card lifting frame.

[0012] Preferably, the gear group includes a card pushing gear, the axial cam is installed on the card pushing gear, the card pushing plate is hinged with a card pushing arm, the axial cam is drivingly connected to the other end of the card pushing arm, the middle part of the card pushing arm is pivotally connected to the module frame, and a reset torsion spring is arranged at the pivotal joint between the card pushing arm and the module frame; the axial cam is provided with an arc slope with an arc segment, the arc slope of the axial cam can gradually push the end of the card pushing arm in contact with it so that the other end of the card pushing arm pushes the card pushing plate forward in the direction of the card lifting frame; when the arc slope of the axial cam rotates away from the end of the card pushing arm connected thereto, the reset torsion spring drives the card pushing arm to reset, and the card pushing plate is reset away from the card lifting frame under the drive of the card pushing arm.

[0013] Preferably, the gear group also includes a lifting gear on which a lifting push rod is installed. A driving slot with a trajectory arc is provided at the bottom of the frame plate of the card lifting frame, and a guide structure is also provided on the card lifting frame. When the lifting push rod rotates with the lifting gear, the driving slot cooperates with the driving slot to realize the up and down movement of the card lifting frame along the guide structure.

[0014] Preferably, the lifting push rod is fixedly arranged at the wheel edge of the lifting gear, perpendicular to the radial surface of the lifting gear, and a bearing is installed at the end of the lifting push rod, which contacts the driving notch of the lifting frame through the bearing.

[0015] Preferably, the guiding structure of the card lifting rack is at least one slide rail arranged on the rack plate and perpendicular to the card holding table surface, and a connecting rib is provided between the slide rail and the rack plate; a slide groove with an opening is provided on the module frame corresponding to the slide rail, and the slide rail can be slidably embedded in its corresponding slide groove.

[0016] Preferably, the guide structure of the card lifting rack is at least one piece provided on the rack plate and has a slide groove; a slide rail perpendicular to the card receiving table surface is provided on the module frame corresponding to the slide groove, and the slide groove can be slidably mounted on its corresponding slide rail.

[0017] Preferably, a slow-down damping mechanism is also provided on one side of the gear set.

[0018] Preferably, the slow-descent damping mechanism consists of a damping cam and an elastic arm in contact with the damping cam, the damping cam is mounted on the other side of the lifting gear opposite to the lifting push rod, and the elastic arm is installed on the module frame; when the lifting gear lifts the card lifting frame through the lifting push rod, the elastic arm always contacts the small-diameter part of the damping cam and is in a low-damping state; when the card lifting frame descends, the elastic arm always contacts the large-diameter part of the damping cam and is in a high-damping state.

[0019] Preferably, one end of the elastic arm is pivotally connected to the module frame, and the other end is placed on the damping cam. An elastic torsion spring providing a rebound force is arranged at the end pivotally connected to the module frame.

[0020] The beneficial effects of the present invention are as follows: the multifunctional card stacking and loading module of the present application can complete the four actions of stacking cards, feeding cards, pushing cards and raising cards in sequence with only one-way rotation of a motor; the module has high integration, is easy to install and maintain, has the characteristics of small space occupancy and high stability, especially only one motor is required to realize all the functions that require two or more motors to realize in the prior art, greatly reducing the product cost and having strong market competitiveness; the card pushing and raising mechanism of the present application adopts a double card pushing arm structure, which can stably complete the card pushing action without the assistance of guide rails or horizontal sliding bars, has smaller space occupancy and high stability; the gear set structure of the present application is simple in structure, easy to produce and maintain, has high installation efficiency and good stability; the card raising frame of the present application is an one-piece molded structure with a notched slide groove, has low production and manufacturing cost, and can slide up and down stably in conjunction with a T-shaped slide rail; a damping wheel is also connected to the back of the lifting gear of the present application, and the damping wheel cooperates with the damping mechanism to ensure that the descending process of the card raising frame is slow and smooth, and noise is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the back side of the present invention;

[0023] Figure 3 It is a partial structural schematic diagram of the front view of the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of the rear view surface of the present invention;

[0025] Figure 5 It is a state diagram before the present invention pushes the card;

[0026] Figure 6 It is a state diagram of the present invention when pushing cards;

[0027] Figure 7 It is a structural schematic diagram of the card lifting frame and the slide rail of the present invention.

[0028] The specific markings are as follows: 1. Module frame; 2. Drive motor; 201. Forward bearing; 202. Reverse bearing; 3. Card stacking magnetic mechanism; 301. Card suction magnet; 302. Sensor; 303. Base; 4. Card pushing and lifting mechanism; 401. Lifting push rod; 402. Gear set; 403. Card pushing plate; 404. Card pushing gear; 405. Axial cam; 406. Card pushing arm; 407. Reset torsion spring; 408. Lifting gear; 409. Arc bevel Slope; 5. Silent buffer pad; 6. Slow-down damping mechanism; 601. Damping cam; 602. Elastic arm; 603. Elastic torsion spring; 7. Card feeding mechanism; 701. Driving arm; 702. Driving slot; 703. Card feeding rack; 704. Card feeding plate; 8. Card lifting rack; 801. Card receiving table; 802. Rack plate; 803. Guide structure; 804. Driving slot; 9. Card receiving plate; 10. Mahjong tiles; 11. Slide rail; 12. Slide slot; 13. Reinforcement rib. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1-7As shown, the specific embodiment of the present invention is a multifunctional stacking and loading module for a vertical automatic mahjong machine, which is used to stack the mahjong tiles sent from the shuffle tray and lift the stacked mahjong tiles onto the mahjong table. The mahjong machine is usually a square structure, and each side of the mahjong machine is equipped with one module. The module includes a stacking magnetic mechanism 3 and a drive motor 2 installed on a module frame 1. The stacking magnetic mechanism 3 stacks the mahjong tiles 10 sent from the shuffle tray up and down into a group (the mahjong tiles are generally stacked in two layers with the suit facing down), thus completing the stacking action. The drive motor 2 pushes each group of mahjong tiles 10 after stacking to the receiving plate 9 (the number of mahjong tiles in different places is different, and the most popular simplified version is 144 tiles, so each group of mahjong tiles is 36 tiles, i.e. 18 piles), thus completing the card delivery action. The driving motor 2 pushes the mahjong tiles 10 stacked on the tile support plate 9 to the tile lifting rack 8 and lifts the mahjong tabletop by reversing, thus completing the tile pushing and lifting actions.

[0031] In order to ensure that the drive motor can only drive different mechanisms when rotating forward and reverse, the output shaft of the drive motor 2 is installed with a forward bearing 201 and a reverse bearing 202. Both the forward bearing 201 and the reverse bearing 202 are one-way bearings. When the drive motor 2 rotates forward, it only drives the forward bearing 201 to rotate, and when it rotates reversely, it only drives the reverse bearing 202 to rotate; (the "forward" and "reverse" in this patent scheme are only used to express two opposite directions, and do not limit the specific corresponding rotation direction. That is to say, if "forward" refers to the clockwise direction, then "reverse" means the counterclockwise direction, and vice versa).

[0032] The forward-rotating bearing 201 is driven and connected to a card-feeding mechanism 7, which reciprocates when the driving motor 2 rotates forward to continuously push each group of stacked mahjong tiles 10 to the card-carrying plate 9; when the driving motor 2 rotates reversely, the card-feeding mechanism 7 is not driven by the driving motor 2, and the card-feeding mechanism 7 stops moving.

[0033] The reversing bearing 202 is driven and connected to a card pushing and lifting mechanism 4 having a card lifting rack 8. When the driving motor 2 reverses, the card pushing and lifting mechanism 4 can push the mahjong cards stacked on the card supporting plate 9 to the card lifting rack 8, and then continue to drive the card lifting rack 8 to be lifted onto the mahjong table top; when the driving motor 2 rotates forward, the card pushing and lifting mechanism 4 is not driven by the driving motor 2, and the card pushing and lifting mechanism 4 stops moving.

[0034] The stacking magnetic mechanism 3 is a base 303 with a card-attracting magnet 301. The card-attracting magnet 301 is located at the bottom of the base 303 and can absorb the mahjong tiles 10 with the suit facing downward to make them lie flat and stacked. The card-feeding mechanism 7 includes a driving arm 701, a driving slot 702 and a card-feeding rack 703; one end of the driving arm 701 is installed on the positive rotation bearing 201, and the other end is movably connected to the card-feeding rack 703. The rotation of the driving arm 701 drives the card-feeding rack 703 to reciprocate back and forth on the slide rail 701; the card-feeding rack 703 has a card-feeding plate 704 extending into the base 303 of the stacking magnetic mechanism 3, and the card-feeding plate 704 feeds the stacked mahjong tiles 10 into the card-bearing plate 9.

[0035] A sensor 302 for sensing the stacking state of the mahjong tiles 10 is also provided on one side of the stacking magnetic mechanism 3. The sensor 302 is at least one infrared sensor or a Hall switch (it is better to set two so as to sense the state and position of the first and second mahjong tiles respectively); when the mahjong tiles conveyed by the shuffling plate fall into the stacking magnetic mechanism, the first mahjong tile will automatically be fine-tuned under the magnetic force of the magnet to keep it horizontal; when the second mahjong tile is conveyed, it is exactly flush with the top of the first tile, and the upper and lower stacking is completed under the force of the conveyor belt.

[0036] When the sensor 302 senses that the stacking of the cards is completed, the card feeding mechanism 7 moves forward horizontally to push the stacked mahjong tiles 10 to the card receiving plate 9; during the pushing process, the top of the card feeding mechanism 7 can block the next mahjong tile 10 from falling (or the conveyor belt stops conveying the mahjong tiles). When the card feeding mechanism 7 is reset, the next mahjong tile 10 can automatically fall into the stacking magnetic mechanism 3 to perform the stacking action.

[0037] The card pushing and lifting mechanism 4 includes a gear set 402, a card pushing plate 403, and a card lifting frame 8. The card pushing plate 403 is located on one side of the card bearing plate 9, and the card lifting frame 8 is located on the other side of the card bearing plate 9. The card lifting frame 8 has a card bearing table 801 and a frame plate 802 located at the bottom of the table. When the card lifting frame 8 is not lifted, the horizontal plane of the card bearing table 801 is not higher than the horizontal plane of the card bearing plate 9; the gear set 402 is drivingly connected to the reversing bearing 202, and the gear set 402 is provided with a lifting push rod 401 on one side of the card lifting frame 8 to drive the card lifting frame 8 to move up and down, and the gear set 402 is provided with an axial cam 405 on one side of the card pushing plate 403 to drive the card pushing plate 403 to move toward the side of the card lifting frame 8. The gear set 402 is set as follows: when the axial cam 405 drives the card pushing plate 403 to move toward one side of the card lifting frame 8, the card lifting frame 8 is located at the bottom (when the card lifting frame drops to the lowest point, flush with the card receiving plate, or slightly lower than the card receiving plate, the card pushing action begins at this time); when the lifting push rod 401 drives the card lifting frame 8 to start moving upward, the card pushing plate 403 has moved away from the card lifting frame 8 and reset.

[0038] The gear set 402 includes a card pushing gear 404, an axial cam 405 is installed on the card pushing gear 404, a card pushing plate 403 is hinged with a card pushing arm 406, the axial cam 405 is drivingly connected to the other end of the card pushing arm 406, the middle part of the card pushing arm 406 is hinged to the module frame 1, and a reset torsion spring 407 is provided at the hinge between the card pushing arm 406 and the module frame 1;

[0039] An arc slope 409 with an arc segment is provided on the axial cam 405. The arc slope 409 of the axial cam 405 can gradually push the end of the card pushing arm 406 connected thereto, so that the other end of the card pushing arm 406 pushes the card pushing plate 403 to move forward in the direction of the card lifting frame 8; when the arc slope 409 of the axial cam 405 rotates away from the end of the card pushing arm 406 connected thereto, the reset torsion spring 407 drives the card pushing arm 406 to reset, and the card pushing plate 403 is reset away from the card lifting frame 406 under the drive of the card pushing arm 406.

[0040] In order to maintain a smooth push, at least two card-pushing arms 406 are hinged on the module frame 1, and two card-pushing gears 404 are correspondingly arranged on the gear set 402. The backs of the two card-pushing gears 404 are both provided with axial cams 405, and the arc slopes 409 of the two axial cams 405 change in opposite directions. The double-arm structure can push the card-pushing board more smoothly; at the same time, the structure of the present application is simpler, the space is temporarily smaller, and there is no need to install an additional horizontal slide bar to avoid uneven force on the card-pushing board.

[0041] The gear set 402 also includes a lifting gear 408 installed with a lifting push rod 401. A driving slot 804 with a trajectory curve is provided at the bottom of the frame plate of the lifting frame 8, and a guide structure 803 is also provided on the lifting frame 8. When the lifting push rod 401 rotates with the lifting gear 408, it cooperates with the driving slot 804 to realize the lifting frame 8 moving up and down along the guide structure 803.

[0042] The lifting push rod 401 is fixedly arranged at the wheel edge position of the lifting gear 408, perpendicular to the radial surface of the lifting gear 408, and a bearing is installed at the end of the lifting push rod 401, which contacts the driving notch 804 of the lifting frame 8 through the bearing.

[0043] The axial cam 405 rotates to the specified position to drive the card pushing arm 406 to open and push the card pushing plate 403 forward. The card pushing plate 403 pushes the mahjong tiles 10 into the card lifting frame 401. After the axial cam 405 rotates to the specified position, the card pushing arm 406 closes and resets, completing the card pushing action; after the card pushing is completed, the lifting gear 408 rotates to the specified position and cooperates with the driving notch 804 to lift the card lifting frame 401 to the mahjong tabletop, and the driving motor 2 stops rotating. At this time, the surface of the card lifting frame 401 remains flush with the mahjong tabletop; before the next round of card pushing action begins, the lifting gear 408 rotates to the specified position, the card lifting frame 401 loses the support of the lifting push rod 401, and moves downward under the action of gravity or the extrusion of the lifting push rod, and the card lifting frame 401 drops to a position flush with or slightly lower than the card bearing plate 9, waiting for the card pushing action.

[0044] The guide structure 803 of the card lifting frame 8 is at least one slide rail 11 arranged on the frame plate 802 and perpendicular to the card receiving table 801, and there is a connecting rib between the slide rail 11 and the frame plate 802; the corresponding slide rail 11 on the module frame 1 is provided with a slide groove 12 with an opening, and the slide rail 11 can be slidably embedded in its corresponding slide groove 12.

[0045] The guide structure 803 of the card lifting frame 8 is at least one piece with a slide groove 12 set on the frame plate; the module frame 1 is provided with a slide rail 11 perpendicular to the card receiving table 801 corresponding to the slide groove 12, and the slide groove 12 can be slidably mounted on its corresponding slide rail 11.

[0046] In order to reduce costs and improve stability, such as Figure 7 The card lifting frame 41 is an integral injection molding structure. A notched slide 12 is provided on the card lifting frame 401. A vertically provided slide rail 11 with a reinforcing rib 13 is correspondingly installed on the module frame 1. The cross section of the slide rail 11 is a T-shaped structure. The slide groove 12 and the slide rail 11 are correspondingly nested and slidably connected. Since the slide rail is a T-shaped structure, the slide rail can form a stable structure with a large area connection with the module frame through the side, without welding on the base; and the card lifting frame with a slide groove structure is formed by one-time injection molding, and can be made of Saigang material (with self-lubricating effect), which ensures that it is strong and durable while having a lighter structure and low production cost.

[0047] A slow-down damping mechanism 6 is also provided on one side of the gear set 402. The slow-down damping mechanism 6 is composed of a damping cam 601 and an elastic arm 602 that contacts and cooperates with the damping cam. The damping cam 601 is mounted on the other side of the lifting gear 408 relative to the lifting push rod 401, and the elastic arm 602 is installed on the module frame 1; when the lifting gear 408 lifts the lifting frame 8 through the lifting push rod 401, the elastic arm 602 always contacts the small diameter part of the damping cam 601 in a low damping state, and when the lifting frame 8 descends, the elastic arm 602 always contacts the large diameter part of the damping cam 601 in a high damping state. One end of the elastic arm 602 is pivoted to the module frame 1, and the other end of the elastic arm 602 rests on the damping cam 601. The end of the elastic arm 602 pivoted to the module frame 1 is provided with an elastic torsion spring 603 that provides a rebound force. During the descent process, due to the gravity of the card lifting frame itself, its speed will be faster than the rotation speed of the lifting gear. At this time, due to the effect of the one-way bearing, the lifting gear cannot provide sufficient supporting force for the card lifting frame. Through the cooperation of the damping mechanism and the damping wheel, damping can be provided during the descent process, allowing the card lifting frame to slow down and reduce noise.

[0048] In order to reduce the noise during the stacking action, the bottom and sides of the stacking magnetic mechanism 3 are provided with silent cushions 5. When the mahjong tiles fall or hit the sides, the silent cushions can effectively absorb the impact force and reduce the noise.

[0049] Embodiment 1

[0050] When assembling, Figure 3 The gear set includes two card-pushing gears and two lifting gears. The reverse bearing on the driving motor meshes with the driving gear through the pinion on it. The driving gear meshes with the right lifting gear. The right lifting gear meshes with the right card-pushing gear. The right card-pushing gear meshes with the left card-pushing gear. The left card-pushing gear meshes with the left lifting gear. The gear set is assembled according to the above connection method. Figure 4 The card-pushing gear is connected to the card-pushing arm through the axial cam on the back, and the arc slopes on the adjacent axial cams change in opposite directions. Two connecting slots are set on the card-pushing plate, and the other end of the card-pushing arm is hinged to the connecting slots. Figure 3 A driving arm is provided on the forward bearing of the driving motor, and a driving slot (such as Figure 4 ), one end of the driving arm is connected to the driving slot (the driving slot converts the rotational force of the driving arm into a horizontal force, driving the card feeding frame to move horizontally back and forth).

[0051] When in use, the stacking magnetic mechanism stacks the mahjong tiles sent from the shuffling plate into a group of two tiles (the mahjong tiles are automatically stacked under the action of gravity, without the need for additional power drive, and its principle is disclosed by the applicant in CN210696396U). When the sensor detects that the stacking action is completed, the drive motor rotates forward, and the card feeding mechanism moves horizontally to push the stacked mahjong tiles to the card receiving plate, and then automatically resets under the action of the drive arm, waiting for the next card feeding action. When all the card stacking and card sending actions are completed (the stacked mahjong tiles are all on the card receiving plate), the driving motor reverses, the lifting gear rotates, and the card lifting frame falls to the same level as the card receiving plate (or slightly lower than the card receiving plate) under the combined action of gravity and the lifting push rod; at this time, the axial cam driven by the gear set also rotates to the specified position, and the arc slopes on the two axial cams respectively squeeze the corresponding card pushing arms to rotate, and the card pushing arms open to both sides and drive the card pushing plate forward, and the card pushing plate pushes the entire mahjong tile strip on the card receiving plate onto the card lifting frame; then the lifting gear rotates to the specified position, the lifting push rod contacts the driving notch, and the lifting push rod drives the card lifting frame carrying the mahjong tiles to rise upward until the card lifting frame is flush with the mahjong table top, the driving motor stops rotating, and the card lifting frame keeps its top flush with the mahjong table top.

[0052] The multifunctional card stacking and loading module of the present application can complete the four actions of stacking, feeding, pushing and raising cards in sequence with only one motor's unidirectional rotation. The module has high integration, is easy to install and maintain, has the characteristics of small space occupancy and high stability. In particular, only one motor is required to realize all the functions that require two or more motors in the prior art, which greatly reduces the product cost and has strong market competitiveness; the card pushing and raising mechanism of the present application adopts a double card pushing arm structure, which can stably complete the card pushing action without the assistance of guide rails or horizontal slide bars, occupies less space and has high stability; the gear set structure of the present application is simple and easy to produce and maintain, with high installation efficiency and good stability; the card raising frame of the present application is an one-piece molded structure with a notched slide groove, with low production and manufacturing cost, and can slide up and down stably in conjunction with a T-shaped slide rail; a damping wheel is also connected to the back of the lifting gear of the present application, and the damping wheel cooperates with the damping mechanism to ensure that the descending process of the card raising frame is slow and smooth, effectively reducing noise.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any slight modification, equivalent substitution and improvement made to the above embodiment based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A multifunctional stacking and loading module for a vertical automatic mahjong machine, which is used to stack mahjong tiles transmitted from a shuffling tray and lift the stacked mahjong tiles onto the mahjong table, characterized in that: The module includes a stacking magnetic mechanism and a driving motor installed on the module frame, the stacking magnetic mechanism stacks two mahjong tiles sent from the shuffling plate into a group, the driving motor drives each stacked group of mahjong tiles to the card receiving plate through forward rotation, and the driving motor drives the mahjong tiles stacked on the card receiving plate to the card lifting rack and raised onto the mahjong tabletop through reverse rotation; The output shaft of the driving motor is equipped with a forward bearing and a reverse bearing, both of which are one-way bearings; the forward bearing is driven and connected to a card feeding mechanism, which reciprocates when the driving motor rotates forward to continuously push each group of stacked mahjong tiles to the card receiving plate, and is not driven and stops when the driving motor rotates reversely; The reversing bearing is driven and connected to a card pushing and lifting mechanism with a card lifting frame. When the driving motor is reversed, the card pushing and lifting mechanism can push the mahjong tiles stacked on the card bearing plate to the card lifting frame, and then continue to drive the card lifting frame to be lifted onto the mahjong tabletop. When the driving motor is forward, the card pushing and lifting mechanism is not driven and stops moving. The stacking magnetic mechanism is a seat body with a card-attracting magnet, and the card-attracting magnet is placed at the bottom of the seat body and can absorb mahjong tiles with the suit facing downwards so that they lie flat and stack; the card-feeding mechanism includes a driving arm, a slide rail and a card-feeding frame; one end of the driving arm is installed on a positive bearing, and the other end is movably connected to the card-feeding frame, and the rotation of the driving arm drives the card-feeding frame to reciprocate back and forth on the slide rail; the card-feeding frame has a card-feeding plate extending into the top of the stacking magnetic mechanism seat body, and the card-feeding plate pushes the stacked mahjong tiles into the card-bearing plate; The card pushing and lifting mechanism comprises a gear set, a card pushing plate, and a card lifting frame. A slow-down damping mechanism is also arranged on one side of the gear set.

2. The multifunctional card stacking module according to claim 1, characterized in that: The card pushing plate is located on one side of the card holding plate, and the card lifting frame is located on the other side of the card holding plate. The card lifting frame has a card holding table and a frame plate located at the bottom of the table. When the card lifting frame is not lifted, the horizontal plane of the card holding table is not higher than the horizontal plane of the card holding plate; the gear group is connected to the reverse bearing drive, and the gear group is provided with a lifting push rod on one side of the card lifting frame to drive the card lifting frame to move up and down, and the gear group is provided with an axial cam on one side of the card pushing plate to drive the card pushing plate to move toward the side of the card lifting frame; the gear group is set so that when the axial cam drives the card pushing plate to move toward the side of the card lifting frame, the card holding table of the card lifting frame is at the lowest position, and when the lifting push rod drives the card lifting frame to start moving upward, the card pushing plate has been reset away from the card lifting frame.

3. The multifunctional card stacking module according to claim 2, characterized in that: The gear group includes a card pushing gear, the axial cam is installed on the card pushing gear, the card pushing plate is hinged with a card pushing arm, the axial cam is drivingly connected to the other end of the card pushing arm, the middle part of the card pushing arm is pivotally connected to the module frame, and a reset torsion spring is arranged at the pivotal connection between the card pushing arm and the module frame; the axial cam is provided with an arc slope with an arc segment, the arc slope of the axial cam can gradually push the end of the card pushing arm in contact with it so that the other end of the card pushing arm pushes the card pushing plate toward the direction of the card lifting frame; when the arc slope of the axial cam rotates away from the end of the card pushing arm connected thereto, the reset torsion spring drives the card pushing arm to reset, and the card pushing plate is reset away from the card lifting frame under the drive of the card pushing arm.

4. The multifunctional card stacking module according to claim 2, characterized in that: The gear set also includes a lifting gear on which a lifting push rod is installed. A driving slot with a trajectory arc is opened at the bottom of the frame plate of the card lifting frame, and a guide structure is also provided on the card lifting frame. When the lifting push rod rotates with the lifting gear, it cooperates with the driving slot to realize the up and down movement of the card lifting frame along the guide structure.

5. The multifunctional card stacking module according to claim 4, characterized in that: The lifting push rod is fixedly arranged at the wheel edge of the lifting gear and is perpendicular to the radial surface of the lifting gear; a bearing is arranged at the end of the lifting push rod, and contacts with the driving notch of the lifting frame through the bearing.

6. The multifunctional card stacking module according to claim 4, characterized in that: The guiding structure of the card lifting rack is at least one slide rail arranged on the rack plate and perpendicular to the card receiving table surface, and a connecting rib is provided between the slide rail and the rack plate; a slide groove with an opening is arranged on the module frame corresponding to the slide rail, and the slide rail can be slidably embedded in its corresponding slide groove.

7. The multifunctional card stacking module according to claim 4, characterized in that: The guiding structure of the card lifting frame is at least one slide groove with an opening arranged on the frame plate; a slide rail perpendicular to the card receiving table surface is arranged on the module frame corresponding to the slide groove, and the slide groove can be slidably mounted on its corresponding slide rail.

8. The multifunctional card stacking module according to claim 4, characterized in that: The slow-descent damping mechanism is composed of a damping cam and an elastic arm in contact with the damping cam. The damping cam is assembled on the other side of the lifting gear relative to the lifting push rod, and the elastic arm is installed on the module frame. When the lifting gear lifts the card lifting frame through the lifting push rod, the elastic arm always contacts the small-diameter part of the damping cam and is in a low-damping state. When the card lifting frame descends, the elastic arm always contacts the large-diameter part of the damping cam and is in a high-damping state.

9. The multifunctional card stacking module according to claim 8, characterized in that: One end of the elastic arm is pivotally connected to the module frame, and the other end is placed on the damping cam. An elastic torsion spring providing a rebound force is arranged at the end pivotally connected to the module frame.

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