CN209967639U

CN209967639U - Curve wheel, slope tile discharging device with curve wheel and mahjong machine

Info

Publication number: CN209967639U
Application number: CN201920137711.1U
Authority: CN
Inventors: 丁颖华
Original assignee: Zhejiang Tryho Electrical Appliance Co Ltd
Current assignee: Zhejiang Chaosheng Electromechanical Technology Co Ltd
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2020-01-21
Anticipated expiration: 2029-01-25

Abstract

The utility model relates to a mahjong machine field especially relates to a curved pulley, and slope tile discharging device, mahjong machine that have this curved pulley. A cam groove is arranged on the wheel body of a curved wheel along the axial center circumference direction of the curved wheel, and the side surface of the wheel body of the curved wheel is provided with wheel teeth; the cam groove comprises a first curve section, a second curve section, a lifting section and a sinking section; the gear teeth on the curve wheel comprise a first tooth part and a second tooth part, and a first gap part and a second gap part are arranged between the first tooth part and the second tooth part. The curve wheel can realize that the same group of driving components can drive and operate the tile lifting components and the tile loading components, thereby reducing the number of internal operating mechanisms of the mahjong machine; and the running space of the mahjong loading assembly can be reduced, and the size of the mahjong machine is reduced.

Description

Curve wheel, slope tile discharging device with curve wheel and mahjong machine

Technical Field

The utility model relates to a mahjong machine field especially relates to a curved pulley, and slope tile discharging device, mahjong machine that have this curved pulley.

Background

Along with the continuous improvement of the living standard, people pay more and more attention to leisure and entertainment life, and the convenient and labor-saving automatic mahjong machine is gradually loved by people.

The mahjong-feeding mode of the existing automatic mahjong machine is that a mahjong-feeding mechanism is stacked under a tabletop and then directly ascends to the tabletop to finish the mahjong-feeding, and the mahjong-feeding mode has the advantages that firstly, more parts are needed, the structure is complex, the noise in working is high, and the thickness of a mahjong table needs to be increased so that the stacking and the ascending and descending of two blocks of mahjong can be finished under the tabletop. The chinese utility model with publication number CN200966910Y discloses a mahjong tile discharging device of an automatic mahjong machine, wherein four tile discharging ports of the mahjong machine are arranged in a windmill shape, and when discharging tiles, the whole tiles are not built and then lifted on a table top, but pushed on the table top along a slope, so that the volume of the whole machine can be reduced. However, the tile pushing and feeding component of the mahjong machine still occupies a large part of the space, because the existing mahjong machine has very complicated tile pushing and feeding mode and very complicated tile pushing and feeding component.

Patent document No. CN207307151U discloses a tile lifting mechanism for a mahjong machine, wherein a notch is formed on a driving gear, when a mahjong tile completely moves to a rocker, an incomplete gear set just meshes to the notch, the driving gear cannot rotate to drive a driven gear to rotate, so as to prevent a push rod from continuously moving forward and colliding with the rocker, the driving gear is further linked with a cam mechanism, and when the incomplete gear set meshes to the notch, the cam mechanism just drives the rocker to do lifting motion to pry the mahjong tile to a horizontal position, at this time, the driving gear rotates from the notch to a toothed position to continue to mesh with a driven gear, the driven gear continuously rotates to drive the push rod to pass through between the rocker and a tile stacking seat, when the rocker is lifted to a highest position, a position sensor below the driven gear detects a signal, and the system stops moving and waits for the next round of operation. According to the scheme, the two intermittent motion mechanisms, namely the incomplete gear set and the cam mechanism, can control the motion of the push rod and the warping plate when the mahjong tiles are at nodes at different positions, a mechanical structure is used for replacing a plurality of position sensors to realize control, a plurality of circuits and electronic elements can be reduced, the reliability is higher, and the mahjong tiles are not easy to damage; and cam mechanism and incomplete gear train realize the linkage through same driving gear, and then only need a driving motor alright realize controlling wane and push rod, greatly reduced manufacturing cost. However, in the scheme, the driving motor drives the pushing rod to rotate in a circumferential one-way mode through the driving gear, so that the pushing rod needs to penetrate through the wane and the mahjong stacking base, the occupied space of the mahjong tile feeding assembly is large, the transmission precision requirement of each part is high, the size of the whole mahjong machine is increased, and the whole mahjong machine cannot be used for a small mahjong machine. The applicant expects a card-loading assembly capable of realizing reciprocating swing and driven by the same set of motors as the card-lifting assembly, so the development of a compatible card-loading assembly and card-lifting assembly is needed in the situation.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a curve wheel which can realize that the same group of driving components can drive and operate the tile lifting component and the tile loading component, thereby reducing the number of internal operating mechanisms of the mahjong machine and reducing the cost; and the running space of the mahjong loading assembly can be reduced, and the size of the mahjong machine is reduced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cam groove is arranged on the wheel body of a curved wheel along the axial center circumference direction of the curved wheel, and the side surface of the wheel body of the curved wheel is provided with wheel teeth;

the cam groove comprises a first curve section, a second curve section, a lifting section and a sinking section; the first curve segment and the second curve segment are circumferential curve segments taking the center of a wheel axle of the curve wheel as a circle center, and the circumferential radius of the first curve segment is larger than that of the second curve segment; the two end parts of the first curve section are connected with the two end parts of the second curve section through a lifting section and a sinking section, the lifting section and the sinking section are transition curve sections for connecting two circumferential curves with different radiuses, and the distance between any point of the transition curve section and the center point of the wheel axle of the curve wheel is smaller than the radius of the first curve section and larger than the radius of the second curve section;

the gear teeth on the curve wheel comprise a first tooth part and a second tooth part which are relatively independent and positioned on the same circumferential line, and a first gap part and a second gap part are arranged between the first tooth part and the second tooth part; the first tooth part, the first notch part, the second tooth part and the second notch part sequentially form a cycle along the rotation direction of the curve wheel;

the first tooth part is axially opposite to the first curve section, and the circumferential angle alpha 1 of the first tooth part is smaller than the circumferential angle beta 1 of the first curve section; the second notch part is axially opposite to the lifting section, and the circumferential angle alpha 2 of the second notch part is larger than the circumferential angle beta 2 of the lifting section; the second tooth part is axially opposite to the second curve section, and the circumferential angle alpha 3 of the second tooth part is smaller than the circumferential angle beta 3 of the second curve section; the first notch part is axially opposite to the sinking section, and the circumferential angle alpha 4 of the first notch part is larger than the circumferential angle beta 4 of the sinking section; the circumferential angle α 1 of the first toothing is greater than the circumferential angle α 3 of the second toothing.

Preferably, the circumferential angle β 2 of the rising section is greater than the circumferential angle β 4 of the sinking section.

The utility model adopts the above technical scheme, the technical scheme relates to a curved pulley, the wheel body of the curved pulley is provided with a cam groove arranged along the axial center circumference, and the cam groove drives the tile lifting assembly in the rotation process; the side surface of the wheel body of the curve wheel is provided with wheel teeth, and the wheel teeth drive the mahjong tile loading assembly in the rotating process. By adopting the curve wheel, the mahjong tile lifting assembly and the mahjong tile loading assembly can be driven to operate by the same group of driving assemblies, the number of internal operating mechanisms of the mahjong machine is reduced, and the cost is reduced; and the running space of the mahjong loading assembly can be reduced, and the size of the mahjong machine is reduced.

Drawings

Fig. 1 is a schematic view of the internal structure of the mahjong machine of the utility model.

Fig. 2 is a schematic structural view of the slope card-playing device of the present invention.

Fig. 3 is a first transmission structure diagram of the slope card-playing device of the present invention.

Fig. 4 is a transmission structure diagram of the slope card-playing device of the present invention.

Fig. 5 is an enlarged view of a portion a of fig. 4.

FIG. 6 is a schematic drawing of the first and second tooth segments on the drive gear.

Fig. 7 is a schematic view of the top surface structure of the curve wheel of the present invention.

Fig. 8 is a schematic view of the bottom structure of the curve wheel of the present invention.

Fig. 9 is a schematic structural view of a swing limiting frame of the present invention.

Figure 10 is a state diagram one of the ramp card-playing device in a waiting ramp card-playing phase.

Figure 11 is a second state of the card ramp out device in a waiting ramp out phase.

Figure 12 is a first state view of the slope card-handling device in a card-feeding pallet sinking stage.

Figure 13 is a second state view of the ramp card dealing arrangement in the upper deck sinking stage.

Figure 14 is a state diagram one of the ramp card dealing arrangement in the card loading phase.

Figure 15 is a second state view of the ramp card dealing arrangement in the card loading phase.

Figure 16 is a first state view of the ramp card dealing arrangement in the stage of raising the card shoe.

Figure 17 is a second state of the card ramp out device in the stage of raising the card shoe.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the utility model, the center of the main machine of the mahjong machine is used as the inner part, and the periphery of the main machine of the mahjong machine is used as the outer part.

The mahjong machine as shown in figure 1 ~ 17 comprises a central control disk assembly 1 positioned in the center of the bottom plate of the frame, a shuffling large disk and a mahjong scraping device, wherein four groups of mahjong picking and carrying systems are arranged around the periphery of the shuffling large disk, and each mahjong picking and carrying system comprises a mahjong conveying device for picking and conveying mahjong on the shuffling large disk one by one, a mahjong pushing device 2 for stacking the mahjong into a pier and pushing out the pile, and a slope mahjong discharging device for conveying the arranged piles of mahjong to the table surface of the mahjong machine along a slope.

In this embodiment, the card feeding channel may be a conventional linear channel, but an arc-shaped card feeding channel may be used to optimize the structural layout. In order to ensure the conveying reliability of the mahjong, the height of the mahjong outlet of the mahjong conveying channel is not lower than that of the mahjong inlet of the mahjong conveying channel. For a specific structure of the card feeding device, patent document No. CN105413161A is cited.

The card pushing device 2 in the embodiment can realize the stacking and pushing function, and comprises a card pushing head and a card bearing platform. For a specific structure of the card pushing device 2, patent documents with publication numbers CN201906453U, CN201949619U, CN103861280A, and CN204699375U can be referred to. Generally speaking, the tile pushing device 2 with the stacking and pushing function comprises a machine head box, a tile pushing motor is mounted on the machine head box, a transmission mechanism is arranged in the machine head box, a tile pushing head and a tile bearing table are arranged outside the machine head box, the tile pushing motor drives the tile bearing table to move up and down through the transmission mechanism to stack mahjong tiles, and the tile pushing motor drives the tile pushing head to move horizontally through the transmission mechanism to push out the stacked mahjong tiles. Of course, the tile pushing device 2 may be another mechanism capable of loading a pile of tiles on the tile bearing platform and pushing a pile of tiles by the tile pushing head. The mahjong tile pushing device comprises a machine head box, a mahjong tile pushing device and a mahjong tile blocking device, wherein the machine head box is provided with a counting detection device used for detecting the number of times of pushing tiles and/or detecting the number of the pushing tiles, a tile blocking frame is arranged near a tile bearing table, a tile outlet and the tile blocking frame of the tile sending device are respectively positioned on two opposite sides of the tile bearing table, a tile pushing head is arranged on one side of the two opposite sides of the tile bearing table, and a tile pushing head is arranged on the other side of the two opposite sides of the tile bearing. The card-feeding detection device for detecting whether the card outlet of the card-feeding device sends the mahjong to the card bearing platform or not can be arranged on the card blocking frame, but is preferably arranged on one side of the card bearing platform, which is provided with the card pushing head, so as to improve the detection precision and reliability.

The slope card-playing device comprises a card-feeding support 31, and a card-feeding assembly 4, a card-lifting assembly 5 and a card-storing groove 32 which are arranged on the card-feeding support 31. The starting end of the card storage groove 32 is connected with the output position of the card pushing device 2, the card pushing device 2 stacks mahjong into a pier and pushes the pier into the starting end of the card storage groove 32, and the card lifting assembly 5 in one group of card picking and conveying systems is connected with the tail end of the card storage groove 32 in the other group of adjacent card picking and conveying systems; the card storage groove 32 is preferably C-shaped as shown in the figure, the C-shaped middle section of the card storage groove 32 is attached to the edge of the mahjong machine, the card feeding mechanism, the card feeding assembly 4 and the card lifting assembly 5 are all positioned in the C-shaped opening of the card storage groove 32, and in order to adapt to habits of players, a card outlet effect that the front sides of the players gradually incline outwards from left to right is established, so that the card lifting assemblies 5 in one group of card picking and carrying systems are connected with the tail ends of the card storage grooves 32 in the front group of card picking and carrying systems clockwise, and the card lifting directions of the card lifting assemblies 5 are inclined as required.

Specifically, the card feeding assembly 4 includes a card feeding pusher 41 and a card feeding pusher head 42 connected to a movable end of the card feeding pusher 41. The card feeding push rod 41 rotates along the positioning end as an axis, and the card feeding push head 42 on the movable end part of the card feeding push rod 41 moves along the track of the card storage groove 32, so that the card feeding process is realized. In one embodiment, the tile feeding assembly 4 is further provided with a tile feeding motor, the tile feeding motor directly drives the tile feeding push rod 41 to rotate around the axis, and the tile feeding push rod 41 rotates in a single direction, so that the tile feeding support 31 of this type of tile feeding assembly 4 is provided with a sensor for detecting the position state of the tile feeding push rod 41 or the tile feeding pusher 42 and/or the tile: for example, two sensors are used to detect and obtain the position information when the card-feeding pusher 42 stays outside the card-inlet of the card-storage slot 32 and waits for pushing the card, and the position information when the card-feeding pusher 42 stays at the card-outlet of the card-storage slot 32 and waits for the card-lifting support plate to lift the mahjong tiles on the table. Moreover, the movable end of the card-feeding push rod 41 needs to stay at the card outlet of the card storage slot 32 to wait for the card-lifting supporting plate to lift the mahjong cards onto the table top, so that the dislocation between the running paths of the two mechanisms is realized. See, in particular, the chinese utility model entitled publication No. CN 207384810U. In this embodiment, as shown in fig. 2, 3 and 4, the card feeding assembly 4 includes a card feeding pushing rod 41, a card feeding pushing head 42 connected to the movable end of the card feeding pushing rod 41, a swinging assembly connected to the positioning end of the card feeding pushing rod 41, and a driving assembly connected to the swinging assembly. The swing assembly comprises a mahjong loading swing arm 43 and a transmission component; one end of the mahjong tile loading rocker arm 43 is hinged on the mahjong tile loading bracket 31, and the other end of the mahjong tile loading rocker arm 43 is provided with an arc-shaped tooth part 431 which is positioned on the same circumferential line with the hinged endpoint of the mahjong tile loading rocker arm 43 as the center of circle. The positioning end of the mahjong tile feeding push rod 41 is hinged, a mahjong tile feeding gear 44 is arranged on the positioning end, and the mahjong tile feeding gear 44 is meshed with the arc-shaped tooth part 431 of the mahjong tile feeding rocker arm 43. The transmission part is driven by the driving assembly to rotate, and a first sliding block 451 is arranged on the transmission part. A first sliding groove 432 is formed between the hinged end of the mahjong tile loading rocker arm 43 and the arc-shaped tooth part 431, and the first sliding groove 432 is arranged along the radial direction of the circle where the arc-shaped tooth part 431 is located; the first slider 451 on the transmission member is located in the first sliding groove 432 of the swing arm 43. The driving assembly comprises a driving motor 6 and a motor gear connected to an output shaft of the driving motor 6; moreover, the transmission component is a transmission gear 45, and the transmission gear 45 is meshed with a motor gear.

The transmission process of the mahjong tile loading assembly 4 adopting the embodiment is as follows; the driving motor 6 drives the transmission gear 45 to rotate through the motor gear, the first sliding block 451 rotates along with the transmission gear 45 in the circumferential direction, and as the first sliding block 451 is located in the first sliding groove 432, the first sliding block 451 moves relative to the first sliding groove 432 and simultaneously drives the mahjong tile feeding rocker arm 43 to swing back and forth along the hinge end of the first sliding block 43 in a certain path range, the mahjong tile feeding gear 44 is driven to rotate and drives the mahjong tile feeding push rod 41 to rotate along the positioning end of the mahjong tile feeding push rod 41 serving as an axis, and the mahjong tile feeding push head 42 at the movable end of the mahjong tile feeding push rod 41 moves along the track of the mahjong tile. As shown in the figure, during the anticlockwise swinging path of the mahjong loading swing arm 43, the mahjong loading push rod 41 swings clockwise, and the mahjong loading push head 42 on the movable end part of the mahjong loading push rod 41 realizes the mahjong loading; during the swing path of the card-feeding rocker arm 43 in the clockwise direction, the card-feeding push rod 41 swings in the counterclockwise direction, and the card-feeding pushing head 42 on the movable end of the card-feeding push rod 41 is reset.

The card lifting assembly 5 comprises a card lifting supporting plate 51, one end of which is hinged to the card loading support 31, a card lifting linkage assembly and a driving assembly, wherein the card lifting linkage assembly drives the card lifting supporting plate 51 to move along the hinged end of the card lifting supporting plate, and the driving assembly drives the card lifting linkage assembly. In one embodiment, the drive assembly is used only to drive the card lifting blade 51 along its hinged end (either raised or lowered). Specifically, the card lifting linkage assembly comprises a card lifting connecting rod 52, a linkage rod 54 which is positioned through a sliding seat 53 and can slide relative to the sliding seat 53, and a double rocker arm component which is connected to the output end of the linkage rod 54. The double-rocker component comprises a first rocker 55 and a second rocker 56, one end of the first rocker 55 is linked with the other end of the second rocker 56, the movable end of the first rocker 55 is hinged with the output end of the linkage rod 54, and the movable end of the second rocker 56 abuts against the tile lifting supporting plate 51 and drives the tile lifting supporting plate 51 to rotate. One end of the mahjong lifting connecting rod 52 is hinged to the mahjong loading bracket, the other end of the mahjong lifting connecting rod 52 is movably connected with the linkage rod 54, specifically, a second sliding groove 521 is arranged at the end of the mahjong lifting connecting rod 52, the second sliding groove 521 is radially arranged relative to the hinged end of the mahjong lifting connecting rod 52, a second sliding block 541 is arranged at the end of the linkage rod 54, and the second sliding block 541 is located in the second sliding groove 521. The driving assembly comprises a driving motor 6 and a curve wheel 7 connected to an output shaft of the driving motor 6, wherein a wheel body of the curve wheel 7 is provided with a cam groove arranged along the circumferential direction of the axis of the curve wheel 7, a rod body of the tile lifting connecting rod 52 is provided with a third sliding block 522 which is limited in the cam groove of the curve wheel 7, and the first sliding block 451, the second sliding block 541 and the third sliding block 522 are preferably rollers or bearings. As shown in particular in fig. 8, the cam slot includes a first curved section 75, a second curved section 76, a rising section 77 and a falling section 78. The first curve segment 75 and the second curve segment 76 are circumferential curve segments with the center of the wheel axle of the curve wheel 7 as the center of a circle, and the circumferential radius of the first curve segment 75 is larger than that of the second curve segment 76. The two ends of the first curve section 75 are connected with the two ends of the second curve section 76 through a rising section 77 and a sinking section 78, the rising section 77 and the sinking section 78 are transition curve sections for connecting two circumferential curves with different radiuses, and the distance between any point of the transition curve section and the center point of the wheel axle of the curve wheel 7 is smaller than the radius of the first curve section 75 and larger than the radius of the second curve section 76.

In addition, a swing limiting frame 57 is arranged on the lower end face of the card lifting supporting plate 51, a swing groove 58 is arranged in the swing limiting frame 57, and a roller is arranged on the movable end of the second swing arm 56 and is arranged in the swing groove 58 in a sliding mode. The end close to the hinged end of the card lifting support plate 51 is a near end part, and the end far away from the hinged end of the card lifting support plate 51 is a far end part. A pressing portion 571 is provided on a proximal end portion of the swing restricting frame 57, and forms a lower notch 581 for the swing groove 58. In this technical solution, the roller on the movable end of the second swing arm 56 rolls relative to the swing groove 58, so that the matching accuracy between the movable end of the second swing arm 56 and the card lifting support plate 51 can be limited. When the roller on the movable end of the second swing arm 56 is at the distal end of the swing groove 58, the two ends of the card raising support plate 51 are leveled and are in a horizontal state. During the turning down of the card raising blade 51, the roller on the movable end of the second swing arm 56 moves from the distal end portion to the proximal end portion of the swing groove 58. In the process, besides the self gravity action of the card lifting supporting plate 51, the roller on the movable end of the second rocker arm 56 can enter the lower notch to press the swing limiting frame 57 downwards to promote the card lifting supporting plate 51 to turn downwards, so that the problem that the card lifting supporting plate 51 cannot be well butted with the card storage groove 32 due to the fact that the card lifting supporting plate is blocked under the gravity action only can be avoided.

In a further preferable scheme, a first arc-shaped groove 511 is arranged on the lower end surface of the card raising supporting plate 51 above the lower notch. The first arc-shaped groove is arranged to increase the space above the lower notch, so that the situation that the tile lifting supporting plate 51 cannot be turned down to the lowest position due to insufficient top space of the roller is avoided. A second arc-shaped groove 512 is arranged on the lower end face of the tile lifting supporting plate 51 above the far end part of the swing limiting frame 57, and the arc-shaped curve of the second arc-shaped groove 512 takes the swing axle center of the second swing arm 56 as the circle center. The second arc-shaped groove is arranged to avoid errors existing in the process of mechanism rotation, and in the second arc-shaped groove, the roller cannot change the supporting height of the tile lifting supporting plate 51, so that the problem that the tile lifting supporting plate 51 is unstable due to small-angle errors in the process of mechanism assembly can be avoided.

The operation transmission process of the card lifting assembly 5 is as follows: the driving motor 6 drives the curve wheel 7 to rotate, the third sliding block 522 in the tile lifting connecting rod 52 rotates relative to the cam groove, so that the tile lifting connecting rod 52 swings around the hinged end of the tile lifting connecting rod as a center, the other end of the tile lifting connecting rod 52 drives the linkage rod 54 to slide relative to the sliding seat 53 and further drives the double-rocker-arm component to swing, and the movable end of the second rocker arm 56 in the double-rocker-arm component abuts against the tile lifting supporting plate 51 and drives the tile lifting supporting plate 51 to rotate. In the above scheme, one end of the tile lifting connecting rod 52 is hinged to the bracket, the other end of the tile lifting connecting rod 52 is movably connected with the linkage rod 54, and the third sliding block 522 in the middle of the tile lifting connecting rod 52 is matched with the cam groove, so that the swing path defined by the cam groove can be enlarged on the movable end of the tile lifting connecting rod 52, and the movement of the linkage rod 54 is realized. Therefore, the lifting requirement of the tile lifting supporting plate 51 can be met only by the small curve wheel 7 and the small cam groove under the structure, and further optimization of the internal space of the mahjong machine is facilitated. Specifically, when the third slide 522 of the card lifting link 52 is located opposite the second curved section 76 of the cam slot, the card lifting blade 51 is flush with the mahjong table when in the horizontal position. When the third slide 522 of the card raising link 52 is located at the first curved section 75 of the cam groove, the movable end of the card raising support plate 51 is at the lowest stage and abuts against the card storage groove 32. When the third slide block 522 of the card lifting link 52 is relatively positioned at the lifting section 77 or the sinking section 78 of the cam groove, the movable end of the card lifting support plate 51 is in the process of lifting or descending.

In the above embodiment, the card feeding assembly 4 and the card lifting assembly 5 are driven to operate by independent driving assemblies respectively. In another embodiment, the card feeding assembly 4 and the card lifting assembly 5 are driven by the same set of driving assemblies. Specifically, the driving assembly includes a driving motor 6 and a curve wheel 7 connected to an output shaft of the driving motor 6, wherein a cam groove circumferentially arranged along an axis of the cam wheel 7 is disposed on a lower end surface of a wheel body of the curve wheel 7, and a third slider 522 disposed on a rod body of the tile lifting link 52 is limited in the cam groove of the curve wheel 7. And the side surface of the wheel body of the curve wheel 7 is provided with gear teeth meshed with the transmission gear 45. The driving motor 6 drives the curve wheel 7 to rotate, and the cam groove in the curve wheel 7 drives the tile lifting connecting rod 52 to swing around the hinged end of the cam groove, so that the tile lifting supporting plate 51 rotates finally; meanwhile, the gear teeth on the curved wheel 7 drive the transmission gear 45 to rotate, and finally the card feeding pushing head 42 on the movable end part of the card feeding pushing rod 41 can move along the track of the card storage groove 32. The same group of driving components are adopted for driving operation, the number of operating mechanisms inside the mahjong machine can be reduced, the cost is reduced, and the size of the mahjong machine can be reduced. However, since the card-loading assembly 4 and the card-lifting assembly 5 need to cooperate, the above solution also needs to define the structure of the curved wheel 7, which is as follows:

the gear teeth on the curve wheel 7 include a first tooth portion 71 and a second tooth portion 72 which are relatively independent and located on the same circumferential line, and a first notch portion 73 and a second notch portion 74 are provided between the first tooth portion 71 and the second tooth portion 72. The first tooth portion 71, the first notch portion 73, the second tooth portion 72, and the second notch portion 74 sequentially form a loop in the rotation direction of the curve wheel 7 (clockwise direction in fig. 7). The circumferential angle α 1 of the first tooth portion 71 is greater than the circumferential angle α 3 of the second tooth portion 72, and more specifically, two radial tangent lines l are tangential to the edge of the transmission gear 45 and are centered on the hinged end of the mahjong tile loading rocker arm 43; the two radial tangents divide the tooth part of the transmission gear 45 into a first tooth section 453 with a circle center angle larger than 180 degrees and a second tooth section 452 with a circle center angle smaller than 180 degrees, the first tooth section 453 is used for being meshed with the first tooth part 71 for transmission, and the arc length of the first tooth section 453 is equal to that of the first tooth part 71; the second tooth section 452 is for meshing engagement with the second tooth portion 72, and the arc length of the second tooth section 452 is equal to the arc length of the second tooth portion 72.

The first tooth part 71 is axially opposite to the first curve section 75, the circumferential angle alpha 1 of the first tooth part 71 is smaller than the circumferential angle beta 1 of the first curve section 75, when the third slide block 522 passes through the first curve section 75, the movable end of the card lifting support plate 51 keeps in a butt joint state with the card storage groove 32, meanwhile, the first tooth part 71 is in meshing transmission with the first tooth section 453 of the transmission gear 45, the transmission gear 45 rotates and drives the card feeding push head 42 to be pushed to the outlet end from the inlet end of the card storage groove 32 by means of the card feeding rocker arm 43; the card lifting support plate 51 must be kept stationary during the whole card loading process, so that the circumferential angle α 1 of the first tooth portion 71 is smaller than the circumferential angle β 1 of the first curve segment 75.

The second notch portion 74 is axially opposite to the lifting section 77, and the circumferential angle α 2 of the second notch portion 74 is greater than the circumferential angle β 2 of the lifting section 77. When the third sliding block 522 passes through the lifting section 77, the movable end of the card lifting supporting plate 51 is gradually lifted, at this time, the second notch part 74 passes through the transmission gear 45, the transmission gear 45 does not rotate, so that the position of the card feeding pushing head 42 at the outlet end of the card storage groove 32 is unchanged, and the card feeding pushing head blocks the mahjong cards from sliding down the slope. Therefore, in the above scheme, after the card lifting supporting plate 51 is lifted, the card pushing head 42 is retracted, and therefore the circumferential angle α 2 of the second notch 74 is larger than the circumferential angle β 2 of the lifting section 77.

The second tooth portion 72 is axially opposite to the second curved section 76, and the circumferential angle α 3 of the second tooth portion 72 is smaller than the circumferential angle β 3 of the second curved section 76. The third slider 522 maintains the card lifting blade 51 in a horizontal position as it passes through the second curved section 76. Meanwhile, the second tooth portion 72 is meshed with the second tooth section 452 of the transmission gear 45 for transmission, and the transmission gear 45 rotates and drives the card pushing head 42 to return from the outlet end to the inlet end of the card storage slot 32 by means of the card pushing rocker arm 43.

The first notch portion 73 is axially opposite to the sinking segment 78, and the circumferential angle α 4 of the first notch portion 73 is greater than the circumferential angle β 4 of the sinking segment 78. When the third sliding block 522 passes through the sinking section 78, the movable end of the card lifting supporting plate 51 gradually descends, at this time, the first notch portion 73 passes through the transmission gear 45, the transmission gear 45 does not rotate, so that the position of the card feeding pushing head 42 at the inlet end of the card storage slot 32 is unchanged, and the card feeding process can be performed only after the card lifting supporting plate 51 descends, so that the circumferential angle α 4 of the first notch portion 73 is larger than the circumferential angle β 4 of the sinking section 78. And further, the card raising supporting plate 51 is in a card holding state during the raising process, and the card raising supporting plate 51 is in an idle state during the sinking process, so in order to ensure the stability of the card holding state, it is preferable that the path of the raising section 77 is longer than that of the sinking section 78, so that the raising process can be slowed down, and the stability of the card holding state can be ensured. The circumferential angle β 2 of the lifting section 77 is therefore greater than the circumferential angle β 4 of the sinking section 78.

Based on the slope card-playing device which adopts the same group of driving components to drive the card-feeding component 4 and the card-lifting component 5 to operate, the specific slope card-playing method comprises the following steps:

step 1: after the mahjong tiles with the specified number of piers are pushed to the tile storage groove 32 by the tile pushing device 2, the driving motor 6 drives the curve wheel 7 to rotate; in this step, the third slider 522 passes through the sinking section 78 of the cam groove, the card-raising connecting rod 52 swings around the hinged end thereof as the center, the other end of the card-raising connecting rod 52 drives the linkage rod 54 to slide relative to the sliding seat 53 (in the direction away from the double rocker arm part), and further drives the double rocker arm part to swing, the movable end of the second rocker arm 56 in the double rocker arm part abuts against the card-raising supporting plate 51 and drives the card-raising supporting plate 51 to turn down, and finally the movable end of the card-raising supporting plate 51 is connected with the tail end of the card storage groove 32; in the process, the first notch part 73 passes through the transmission gear 45, and the transmission gear 45 does not rotate, so that the position of the card feeding pushing head 42 at the inlet end of the card storage groove 32 is unchanged;

step 2: the driving motor 6 continues to drive the curve wheel 7 to continue rotating; in this step, the third slider 522 passes through the first curved section 75 of the cam slot, and the position of the card raising support plate 51 is unchanged; meanwhile, the first tooth part 71 is meshed with the first tooth section 453 of the transmission gear 45 for transmission, so that the transmission gear 45 rotates, the transmission gear 45 drives the mahjong tile feeding rocker arm 43 to swing for a certain angle along the hinged end of the transmission gear in the rotating process, and the mahjong tiles are pushed to the tile lifting supporting plate 51 by the mahjong tile feeding pushing head 42 from the inlet end of the tile storage groove 32;

and step 3: the driving motor 6 continues to drive the curve wheel 7 to continue rotating; in this step, the third slider 522 passes through the lifting section 77 of the cam groove, the tile lifting connecting rod 52 swings around the hinged end thereof as the center, the other end of the tile lifting connecting rod 52 drives the linkage rod 54 to slide relative to the sliding seat 53 (close to the direction of the double rocker arm part), and further drives the double rocker arm part to swing, the movable end of the second rocker arm 56 in the double rocker arm part abuts against the tile lifting supporting plate 51 and drives the tile lifting supporting plate 51 to lift, and finally the tile lifting supporting plate 51 is flush with the table top of the mahjong machine; in the process, the second notch part 74 passes through the transmission gear 45, and the transmission gear 45 does not rotate, so that the position of the card feeding pushing head 42 at the outlet end of the card storage groove 32 is unchanged;

and 4, step 4: the driving motor 6 continues to drive the curve wheel 7 to continue rotating; in this step, the third slide 522 is in the second curve section 76 of the cam groove, and the position of the card raising support plate 51 is unchanged; meanwhile, the second tooth part 72 is meshed with the second tooth section 452 of the transmission gear 45 for transmission, so that the transmission gear 45 rotates, the transmission gear 45 drives the mahjong tile feeding rocker arm 43 to swing for a certain angle along the hinged end in the rotating process, and the mahjong tile feeding pushing head 42 is reset from the outlet end to the inlet end of the mahjong tile storage groove 32.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. A cam groove is arranged on the wheel body of a curved wheel along the axial center circumference direction of the curved wheel, and the side surface of the wheel body of the curved wheel is provided with wheel teeth; the method is characterized in that:

2. The curvilinear pulley according to claim 1, characterized in that: the circumferential angle beta 2 of the lifting section is larger than the circumferential angle beta 4 of the sinking section.

3. A ramp card-playing device comprising a curved pulley as claimed in claim 1 or 2.

4. A mahjong machine, characterized in that it comprises a curved pulley according to claim 1 or 2.