CN213667871U

CN213667871U - Card scraping mechanism

Info

Publication number: CN213667871U
Application number: CN202021990933.7U
Authority: CN
Inventors: 阳琳
Original assignee: Individual
Current assignee: Espressif Smart Technology Zhejiang Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-07-13
Anticipated expiration: 2030-09-11

Abstract

The utility model relates to a mahjong machine technical field specifically discloses a be applied to mahjong machine scrape tablet mechanism, include fixing base, sliding seat at least, scrape arm and separation stopper, the separation stopper sets up between sliding seat and fixing base, the inside holding that is provided with of sliding seat separates stopper axial motion's motion space, be provided with axial guiding mechanism between the inner wall of separation stopper and sliding seat, be provided with circumference stop gear between separation stopper and the fixing base. The mahjong tile scraping mechanism of the embodiment is provided with the separation limiting block between the movable seat and the fixed seat, so that the mahjong tile scraping device is provided with a rotary motion base, the fixed structural form of the mahjong tile scraping device in the existing mahjong machine is changed, a reliable structural base is provided for the rotary motion of the mahjong tile scraping device, and the technical defect of the existing fixed mahjong tile scraping device is overcome.

Description

Card scraping mechanism

Technical Field

The utility model relates to a mahjong machine technical field, concretely relates to be applied to mahjong machine scrape tablet mechanism.

Background

In the prior art, the mahjong tile scraping mechanism is usually fixedly arranged, the shuffling large disk rotates during shuffling, and a scraping arm of the mahjong tile scraping mechanism plays a role in blocking and guiding mahjong tiles on the shuffling large disk, so that the mahjong tiles on the shuffling large disk are promoted to move towards a mahjong tile feeding port.

Fixed defect that scrapes tablet mechanism and lead to among the prior art lies in:

(1) when the mahjong shuffling starts, all the mahjong tiles fall on the upper surface of the mahjong shuffling large plate at a time and are accumulated, and the scraping arm which is relatively static causes very large resistance to the mahjong tile stack, so that the movement resistance of the mahjong shuffling large plate is very large, the mahjong shuffling large plate is driven by a motor with large torque, and the cost of the mahjong machine is improved; meanwhile, when mahjong tiles are piled up to cause congestion, the motor with large torque easily damages the linkage gear mechanism.

(2) The mahjong tile stack has very large resistance to the scraping arm, so that the scraping arm is easy to deform, the requirement on the material performance of the scraping arm is high, the scraping arm fails due to too large deformation along with the increase of time, and mahjong tiles cannot reach the tile outlet and cause faults.

(3) Due to the blocking and guiding of the fixed scraping arm, the mahjong tiles can rapidly slide to the mahjong tile feeding port, stacking is formed at the mahjong tile feeding port, each mahjong tile feeding port can only adsorb one mahjong tile, the mahjong tiles are stacked at the mahjong tile feeding port, so that the interaction force between the mahjong tiles is large, the magnetic attraction force of the mahjong tile feeding mechanism is insufficient to enable the mahjong tiles to be separated from the mahjong tile stack, the idling phenomenon of the mahjong tile feeding mechanism occurs, and the mahjong tile feeding efficiency is low.

(4) During the rotation of the shuffling big disk, the free end of the scraping arm is deformed due to the large resistance of the mahjong tile stack, and large noise is generated during the process that the deformed free end of the scraping arm is quickly recovered after passing through the mahjong tile stack; in addition, since the scraping arm is fixed, the mahjong tile shuffling large disc rotates, and impact noise is generated between the mahjong tiles and the scraping arm.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to solve the technical defect who leads to because of fixed mahjong tile scraping device in the current mahjong machine.

In order to solve the technical problem, the utility model provides a technical scheme as follows: a card scraping mechanism comprising at least:

a fixed seat;

the movable seat is arranged above the fixed seat;

the scraping arms are arranged outside the movable seat;

the separation stopper, the separation stopper sets up between sliding seat and fixing base, the inside motion space that is provided with of sliding seat holds separation stopper axial motion, be provided with axial guiding mechanism between the inner wall of separation stopper and sliding seat, be provided with circumference stop gear between separation stopper and the fixing base.

In a preferred embodiment, the separation limiting block at least includes a first state and a second state, in the first state, the movable seat is fixed relative to the fixed seat, and in the second state, the movable seat can rotate relative to the fixed seat.

In a preferred embodiment, an elastic member is arranged in the movement space between the movable seat and the separation limiting block.

In a preferred embodiment, the elastic member is a spring.

In a preferred embodiment, a spring receiving groove is formed in one side of the separation limiting block facing the spring.

The axial guide mechanism comprises at least one guide convex rib arranged on the outer wall of the separation limiting block and a guide groove arranged on the inner wall of the movable seat and matched with the guide convex rib.

According to a preferred embodiment, the circumferential limiting mechanism comprises at least one limiting protrusion arranged on the separation limiting block and facing one side of the fixing base, and a limiting hole arranged on the fixing base and matched with the limiting protrusion.

In a preferred embodiment, the limiting hole axially penetrates through the fixing seat.

In a preferred embodiment, one side of the limiting hole is provided with a track groove extending from the lowest position where the limiting protrusion is located to the upper surface of the fixing seat, and the arc-shaped track of the track groove is matched with the limiting protrusion.

In a preferred embodiment, the movable seat or the separation limiting block is provided with a transmission gear ring.

The mahjong tile scraping mechanism of the embodiment is provided with the separation limiting block between the movable seat and the fixed seat, so that the mahjong tile scraping device is provided with a rotary motion base, the fixed structural form of the mahjong tile scraping device in the existing mahjong machine is changed, a reliable structural base is provided for the rotary motion of the mahjong tile scraping device, and the technical defect of the existing fixed mahjong tile scraping device is overcome.

Drawings

FIG. 1 is a schematic external view of a mahjong machine using a tile scraping mechanism according to the first embodiment of the present application;

FIG. 2 is a schematic view of the exploded state structure of the mahjong machine shown in FIG. 1;

FIG. 3 is a schematic sectional view of a shuffle platter according to a first embodiment;

FIG. 4 is a structural diagram illustrating an installation state of the card scraping mechanism and the transmission gear set according to the first embodiment;

FIG. 5 is a schematic structural diagram of a card scraping mechanism according to a first embodiment;

FIG. 6 is a schematic structural diagram of a card scraping device according to an embodiment;

FIG. 7 is a schematic structural diagram of a separating stop block according to the first embodiment;

FIG. 8 is a schematic structural diagram of a fixing base according to a first embodiment;

fig. 9 is a schematic structural view of a central elevating dice tray mechanism according to an embodiment;

FIG. 10 is a schematic view of a transmission gear set according to an embodiment;

FIG. 11 is a schematic view of a partial cross-sectional structure of the mahjong machine shown in the first embodiment, wherein the separation limiting block is in the highest position state;

FIG. 12 is a schematic view of a partial cross-sectional structure of the mahjong machine according to the first embodiment, wherein the separation limiting block is at the lowest position;

FIG. 13 is a schematic view of a partial cross-sectional structure of a mahjong machine according to the first embodiment, with a separation limiting block at a moving position;

FIG. 14 is a schematic structural view of a separation stopper according to the second embodiment;

FIG. 15 is a structural diagram of an exploded state of the card scraping mechanism according to the third embodiment;

FIG. 16 is a schematic view of an exploded structure of a mahjong machine using a tile scraping mechanism according to the fourth embodiment of the present application;

FIG. 17 is a schematic view showing the structure of a shuffled large disc according to a fourth embodiment;

FIG. 18 is a schematic structural view of a card shoe of the fourth embodiment;

FIG. 19 is a schematic structural view of a fixing base according to a fourth embodiment;

FIG. 20 is a schematic bottom view of the separation stopper according to the fourth embodiment;

fig. 21 is a schematic top structure view of a separation limiting block in the fourth embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

The following description will proceed with the detailed description of the tile scraping mechanism of the present embodiment with reference to the application of the tile scraping mechanism of the present embodiment in a specific mahjong machine.

Example one

A mahjong machine applying the tile scraping mechanism of the embodiment is shown in figures 1 and 2 and comprises a shuffling large plate 10, a tile scraping mechanism 20 and a central lifting dice plate mechanism 30.

As the greatest improvement of the embodiment, the card scraping mechanism 20 is shown in fig. 2, and includes a fixed seat 23 fixedly arranged and a card scraping device 21 arranged above the fixed seat. The structure of the card scraping device 21 is as shown in fig. 6, and includes a movable seat 211 disposed opposite to the fixed seat 23, and four scraping arms 212 disposed around the movable seat 211.

In this embodiment, a movement separating mechanism is arranged between the movable seat and the fixed seat, and the movement separating mechanism includes a separation limiting block 22. Wherein, the movable seat 211 is provided with a movement space for accommodating the axial movement of the separation limiting block 22, the separation limiting block 22 comprises a first state and a second state in the movement space, the card scraping device 21 is fixed relative to the fixed seat 23 in the first state shown in fig. 12, and the card scraping device 21 can rotate relative to the fixed seat 23 in the second state shown in fig. 11 and 13.

The separation limiting block 22 of this embodiment is, as shown in fig. 7, provided with two limiting protrusions 224 extending to one side of the fixing base facing the end surface of the fixing base 23, and correspondingly, as shown in fig. 8, the fixing base 23 is provided with a limiting hole 232 for being in plug-in fit with the limiting protrusions 224. Wherein the spacing protrusion 224 and the spacing hole 232 constitute a spacing mechanism between the separation limiting block and the fixing base, the spacing mechanism is configured not to affect the axial movement of the separation limiting block, and when the separation limiting block is in the first state, the circumferential movement of the separation limiting block is obstructed, i.e. the separation limiting block is circumferentially fixed and axially movable relative to the fixing base.

In this embodiment, an axial guiding mechanism is arranged between the inner walls of the separation limiting block 22 and the movable seat 211, and the axial guiding mechanism includes a plurality of guiding ribs 223 arranged on the outer wall of the separation limiting block and extending axially, and a guiding groove 213 arranged on the inner wall of the movable seat and adapted to the guiding ribs 223. The axial guide mechanism enables the separation limiting block to only do axial movement relative to the movable seat. When the separation limiting block is in a first state, the mahjong scraping device and the fixed seat form a whole and are in a fixed state; when the separation limiting block is in the second state, the integral structure formed by the mahjong scraping device and the separation limiting block can rotate relative to the fixed seat.

It should be noted that, in this embodiment, the guiding convex rib 223 of the axial guiding mechanism is disposed on the outer wall of the separation limiting block, and the guiding groove is disposed on the inner wall of the movable seat. Of course, the axial guiding mechanism may also adopt other feasible embodiments in the prior art, such as the matching of the guiding shaft and the guiding hole, which is not limited herein.

In this embodiment, as shown in fig. 2, 11-13, an elastic member 24 is disposed between the movable seat 211 and the separation limiting block 22. The elastic member 24 is preferably a spring configured such that when the separation stopper is in the second state, the elastic member is compressed, and when the stopper protrusion and the stopper are located at the same axial position, the compression potential energy of the elastic member is released to drive the separation stopper to move downward from the second state to the first state.

In the present embodiment, as shown in fig. 2 and 3, the shuffling large disk 10 is provided with a large disk drive device for driving the shuffling large disk 10 to rotate, the large disk drive device comprises a pair of large disk drive motors 13 which are symmetrically arranged, a drive gear 14 is mounted on an output shaft of the large disk drive motors, and a driven gear ring 11 which is meshed with the drive gear 14 is arranged at the bottom of the shuffling large disk 10.

It should be noted that, in this embodiment, two large disk drive motors are provided, which is only a preferred embodiment of this embodiment, and only one or more than two large disk drive motors may be provided as needed. In addition, the transmission mode between the large disk driving motor and the shuffling large disk is also a preferred embodiment, and the shuffling large disk can also be provided with a driven gear meshed with the driving gear, or other feasible transmission modes are adopted, and the transmission mode is not limited in any way.

As a special point of the embodiment, a transmission mechanism is arranged between the shuffling large disk 10 and the card scraping device 21, and the card scraping device is driven by a large disk driving device to rotate.

Specifically, in the present embodiment, the transmission mechanism is shown in fig. 2, 3-5, 7 and 10, and includes a first transmission gear ring 12 disposed on the shuffle board, a second transmission gear ring 221 disposed on the separation limiting block, and a transmission gear set 40. Preferably, in the embodiment, the transmission gear set comprises a first transmission gear 41 and a second transmission gear 42 which are coaxially arranged, wherein the first transmission gear 41 is used for being meshed with the first transmission gear ring 12, and the second transmission gear 42 is used for being meshed with the second transmission gear ring 221, so that the rotary motion of the shuffling large disk is transmitted to the card scraper and drives the card scraper to rotate.

In this embodiment, for the purpose of motion separation, as shown in fig. 7, the second transmission gear ring 221 is provided with a space-avoiding position 222, and is configured such that when the separation limiting block is in the first state, the second transmission gear is disengaged from the second transmission gear ring at the space-avoiding position.

In this embodiment, the structure of the central elevating dice tray mechanism 30 is as shown in fig. 2 and fig. 9, and includes a dice tray 31, a central elevating rod 32, and a central elevating base 33, which are connected in sequence from top to bottom, and further includes a central elevating motor 35 and a cam 34, wherein the central elevating motor 35 drives the cam 34 to rotate, and further drives the central elevating base 33 to elevate. It should be noted that the structure and principle of the central elevating dice disk mechanism 30 are conventional technology in the technical field of mahjong machine, and are not described herein again.

The special feature of this embodiment is that the limiting hole 232 is designed to be through-type, and correspondingly, the central lifting seat 33 is provided with the top rod 36 corresponding to the limiting hole, and the top rod 36 functions in that when the central lifting seat is lifted, the top rod 36 enters the limiting hole and pushes the limiting protrusion in the limiting hole out of the limiting hole, so as to drive the separation limiting block to move from the first state to the second state.

Of course, the structure form that the mandril on the moving center lifting seat drives the separation limiting block to move from the first state to the second state is only a preferred mode of the embodiment and is not limited only. Other possible structures that can drive the separation limiting block to move from the first state to the second state can be applied to the present embodiment.

The working principle of the tile scraping mechanism and the tile shuffling large-disc linkage type mahjong machine and the corresponding tile shuffling method are as follows:

in this embodiment, as shown in fig. 12, the initial state before the start of shuffling is that the stopper projection 224 of the separation stopper 22 is positioned in the stopper hole 232, and the card scraper 21 is in a fixed state. When a new game needs to be started after the card game is over, the central lifting motor 35 is started by operating the mahjong machine to drive the central lifting dice disc 31, the central lifting rod 32 and the central lifting seat 33 to ascend, and in the process, as shown in fig. 11, the ejector rod 36 ejects the limiting protrusion out of the limiting hole, namely the separation limiting block moves from the first state to the second state.

In the process, the mahjong tiles are pushed into the big shuffling tray in the mahjong machine, and meanwhile, the big shuffling tray driving motor is started to drive the big shuffling tray to rotate. Because the scraping arm 212 of the card scraping device has elasticity and is tightly attached to the upper surface of the shuffling large disk 10, when the shuffling large disk 10 rotates, the card scraping device can be driven to rotate for a certain angle under the action of friction force, so that the positions of the limiting bulges and the limiting holes are staggered, and the lower end surface of the limiting bulges is contacted with the upper surface 231 of the fixed seat. Meanwhile, after the mahjong tile scraping device rotates for a certain angle, the position of the vacancy avoidance position is changed due to the rotation of the second transmission gear ring, so that the second transmission gear and the second transmission gear ring are in a meshed state, and the mahjong tile scraping device is driven to rotate.

The shuffling method corresponding to the mahjong machine comprises a first shuffling stage and a second shuffling stage.

In the embodiment, in the first shuffling stage, the card scraper and the shuffling large disk rotate in the same direction, the rotation speed of the shuffling large disk is n1, the rotation speed of the card scraper is n2, and n2 is less than n 1. Preferably, n2 is (0.2-0.8) n 1.

In the first shuffling stage, after the mahjong tiles slide on the upper surface of the shuffling large plate, as the scraping arm of the mahjong scraping device rotates along with the shuffling large plate in the same direction, part of the mahjong tiles can rotate along with the shuffling large plate, the sliding speed of the mahjong tiles in the mahjong tile stack to the mahjong tile feeding port is delayed, and only one part of the mahjong tiles moves to the mahjong tile feeding port, so that a large number of mahjong tiles at the mahjong tile feeding port can not be stacked, and the mahjong tile feeding efficiency at the mahjong tile feeding port is improved. The scraping arms of the mahjong scraping device rotate along the shuffling large disc in the same direction, the rotating speed is lower than that of the shuffling large disc, certain resistance can be generated on mahjong due to the relative speed difference, the mahjong is prevented and guided to slide to the bottom, in the process, the resistance is relatively small, the deformation of the scraping arms is smaller, the torque of a driving motor of the shuffling large disc is also smaller, the cost is saved, and meanwhile, the service life is longer. Because the mahjong tile feeding port cannot be accumulated, the resistance generated by the free end of the scraping arm is small, the deformation of the free end of the scraping arm is small, and the noise generated in the rotating process is greatly reduced.

In this embodiment, when the rotational motion of the card scraper is a certain angle R, the second shuffling stage is performed. In the second shuffling stage, the rotation of the card scraper is stopped, and the rotation of the card shuffling large disk is completed.

In the first shuffling stage, most of the tiles have already entered the deck along the card shoe. Thereafter, a small amount of tiles will remain on the shuffle platter, delaying the time that the tiles will enter the upper opening if the scrapers continue to rotate. Therefore, in the second stage, the rotation of the card scraper stops, the remaining mahjong tiles are blocked and guided to the card feeding port, and the shuffling efficiency is improved when the mahjong tiles are fewer.

In the present embodiment, the rotation angle R is usually selected to be 60 DEG-R.ltoreq.360 deg. In this embodiment, the rotation angle R is controlled by the positions of the limiting protrusions and the limiting holes on the circumferential surface. Preferably, in the present embodiment, two sets of limiting protrusions and limiting holes are provided, but two sets of limiting structures are staggered in the radial direction, so the rotation angle R of the present embodiment is 360 °. When the mahjong scraping device rotates to the position of the limiting protrusion to coincide with the position of the limiting hole, the limiting protrusion enters the limiting hole under the action of the elastic piece, so that the mahjong scraping device stops rotating.

Of course, this is not the only limitation to this application, and the rotation angle may also be set to other angles, for example, the limiting protrusion may be overlapped with the limiting hole in the corresponding position after rotating 180 °, and the setting of the angle may be related as required. It should be noted that when the rotation angle is not 360 degrees, the second transmission gear ring also needs to be provided with different numbers of clearance positions according to the angle.

Example two

A card scraping mechanism of the present embodiment is different from the first embodiment in that, as shown in fig. 14, the second transmission gear ring 221 is full-toothed in the circumferential direction and is not designed to avoid a space. But a gap 225 is provided above the second ring gear 221. In this embodiment, when the separation limiting block is in the first state, the second transmission gear ring 221 and the second transmission gear 42 have a height difference and are disengaged, that is, the second transmission gear 42 is located at the position of the gap 225. When the separation limiting block is in the second state, the second transmission gear ring 221 rises along with the separation limiting block and then is meshed with the second transmission gear, so that the shuffling large disk drives the card scraping device to rotate.

EXAMPLE III

The difference between the first card scraping mechanism of this embodiment and the first embodiment is that, as shown in fig. 15, the second transmission gear ring 221 is disposed inside the movable base 211, rather than on the separation limiting block. The second ring gear 221 is provided with a space avoidance portion 222.

Preferably, in this embodiment, the guide rib 214 as the axial guide mechanism is disposed on the inner wall of the movable seat, and the guide groove 226 is disposed on the outer wall of the separation stopper. The structure has the same effect as the axial guide mechanism in the first embodiment.

Example four

A mahjong machine applying the tile scraping mechanism of the embodiment is shown in fig. 16 and comprises a shuffling large plate 10, a tile scraping mechanism 20 and a central lifting dice plate mechanism 30.

As the greatest improvement of the embodiment, the card scraping mechanism 20 is shown in fig. 16, and includes a fixed seat 23 fixedly arranged and a card scraping device 21 arranged above the fixed seat. The structure of the card scraping device 21 is as shown in fig. 18, and includes a movable seat 211 disposed opposite to the fixed seat 23, and four scraping arms 212 disposed around the movable seat 211.

As shown in fig. 20, the separation limiting block 22 of this embodiment is provided with two limiting protrusions 224 extending towards one side of the fixing base facing the end surface of the fixing base 23, and correspondingly, as shown in fig. 19, the fixing base 23 is provided with a limiting hole 232 for being in plug-in fit with the limiting protrusions 224. Wherein the spacing protrusion 224 and the spacing hole 232 constitute a spacing mechanism between the separation limiting block and the fixing base, the spacing mechanism is configured not to affect the axial movement of the separation limiting block, and when the separation limiting block is in the first state, the circumferential movement of the separation limiting block is obstructed, i.e. the separation limiting block is circumferentially fixed and axially movable relative to the fixing base.

In this embodiment, an axial guiding mechanism is arranged between the inner walls of the separation limiting block 22 and the movable seat 211, and the axial guiding mechanism includes a plurality of guiding ribs 214 arranged on the inner wall of the movable seat and extending axially, and a guiding groove 226 arranged on the outer wall of the separation limiting block and adapted to the guiding ribs 214. The axial guide mechanism enables the separation limiting block to only do axial movement relative to the movable seat. When the separation limiting block is in a first state, the mahjong scraping device and the fixed seat form a whole and are in a fixed state; when the separation limiting block is in the second state, the integral structure formed by the mahjong scraping device and the separation limiting block can rotate relative to the fixed seat.

It should be noted that, in this embodiment, the guiding convex rib of the axial guiding mechanism is arranged on the inner wall of the movable seat, the guiding groove is arranged on the outer wall of the separation limiting block, and as an equivalent implementation mode, the guiding convex rib can also be arranged on the outer wall of the separation limiting block, and the corresponding guiding groove can also be arranged on the inner wall of the movable seat. Of course, the axial guiding mechanism may also adopt other feasible embodiments in the prior art, such as the matching of the guiding shaft and the guiding hole, which is not limited herein.

In this embodiment, as shown in fig. 16, an elastic member 24 is disposed between the movable seat 211 and the separation limiting block 22. The elastic member 24 is preferably a spring configured such that when the separation stopper is in the second state, the elastic member is compressed, and when the stopper protrusion and the stopper are located at the same axial position, the compression potential energy of the elastic member is released to drive the separation stopper to move downward from the second state to the first state.

Preferably, in the present embodiment, as shown in fig. 21, the top of the movable seat 22 is provided with a receiving groove 227 for receiving the elastic member 211.

The biggest difference between this embodiment and the first, second and third embodiments is that the tile scraper 21 is provided with an independent tile scraping drive device, and the control system of the mahjong machine controls the tile scraper and the tile shuffling large plate to rotate independently.

Preferably, in the present embodiment, the card scraping driving device includes a card scraping driving motor 25 as shown in fig. 16, a third driving gear 26 is connected to an output shaft of the card scraping driving motor 25, and correspondingly, as shown in fig. 16 and 18, a fourth driving gear 215 is provided on the movable base 211, and the fourth driving gear 215 is engaged with the third driving gear 26.

It should be noted that the scraping driving device is only a preferred embodiment of the present embodiment, and is not the only limitation of the present application. And the fourth driving gear can also adopt a gear ring structure and is meshed with the third driving gear. Or other possible transmission means, and is not limited herein.

Preferably, in this embodiment, for the purpose of motion separation, the fourth driving gear 215 is provided with a space-avoiding position 222, and is configured such that, when the separation limiting block is in the first state, the fourth driving gear 215 is disengaged from the third driving gear 26 at the position of the space-avoiding position 222.

In the present embodiment, as shown in fig. 16 and 17, the shuffle platter 10 is provided with a platter driving means for driving the shuffle platter 10 to rotate, the platter driving means includes a platter driving motor 13, an output shaft of the platter driving motor is provided with a first driving gear 14, and the bottom of the shuffle platter 10 is provided with a second driving gear 11 engaged with the first driving gear 14.

It should be noted that, in this embodiment, there is only one large disk drive motor, which is a preferred embodiment of this embodiment, and the large disk drive motors may be provided in plurality as needed. In addition, the transmission mode between the large disk driving motor and the shuffling large disk is also a preferred embodiment, and the shuffling large disk can also be provided with a second driving gear meshed with the first driving gear, or other feasible transmission modes can be adopted, and the transmission mode is not limited in this respect.

In this embodiment, the structure of the central elevating dice tray mechanism 30 is the same as that of the central elevating dice tray mechanism in the first embodiment, and details thereof are not described herein.

Preferably, as shown in fig. 19, on the fixing base 23 of this embodiment, a track groove 233 extending from the lowest position where the lower end of the limiting protrusion is located to the upper surface of the fixing base is disposed on one side of the limiting hole 232, and an arc track of the track groove 233 is adapted to the limiting protrusion. And, the rotation direction of the card scraping device is opposite to that of the large dish washing tray when the limit projection 224 slides out of the track groove 233 from the bottom thereof.

It should be noted that the rotatable mahjong machine with the mahjong tile scraping device of the embodiment can realize various shuffling methods through the control of the mahjong machine control system, and the following describes various shuffling methods in detail by combining the working principle.

The first shuffling method comprises the following steps:

In the process, the mahjong tiles are pushed into the big shuffling tray in the mahjong machine, and meanwhile, the big shuffling tray driving motor is started to drive the big shuffling tray to rotate. Because the scraping arm 212 of the card scraping device has elasticity and is tightly attached to the upper surface of the shuffling large disk 10, when the shuffling large disk 10 rotates, the card scraping device can be driven to rotate for a certain angle under the action of friction force, so that the positions of the limiting bulges and the limiting holes are staggered, and the lower end surface of the limiting bulges is contacted with the upper surface 231 of the fixed seat. Meanwhile, after the card scraping device rotates for a certain angle, the position of the vacancy avoidance position is changed by the rotation of the fourth driving gear, so that the third driving gear and the fourth driving gear are in a meshed state, and the card scraping device is driven to rotate.

The first shuffling method includes the first shuffling stage and the second shuffling stage.

Of course, this is not the only limitation to this application, and the rotation angle may also be set to other angles, for example, the limiting protrusion may be overlapped with the limiting hole in the corresponding position after rotating 180 °, and the setting of the angle may be related as required. When the rotation angle is not 360 degrees, the fourth drive gear is also set to have a different number of clearance holes according to the angle.

The second shuffling method comprises the following steps:

this second shuffling method differs from the first shuffling method in that the rotational movement of the scrapers may be intermittent in the first stage.

In the process of intermittent movement of the mahjong tile scraping device, the blocking effect of the scraping arm on mahjong tiles on the shuffling large plate is changed more, and the mahjong tile feeding efficiency is improved.

The third shuffling method:

the third shuffling method is different from the first shuffling method and the second shuffling method in that a third shuffling stage and a fourth shuffling stage are added on the basis of the first shuffling method or the second shuffling method.

In the third shuffling stage, the big disc driving motor rotates reversely to drive the shuffling big disc to rotate reversely, under the action of friction force between the upper surface of the shuffling big disc and the scraping arm, the card scraping device rotates reversely, in the reverse rotation process, the limiting protrusions move towards the upper surface of the fixing seat along the track grooves, in the movement process, the fourth driving gear rotates for a certain angle, the avoiding positions are driven to rotate for a certain angle, the third driving gear is meshed with the fourth driving gear, and after the third driving gear is meshed with the fourth driving gear, the card scraping driving motor rotates reversely, so that the reverse rotation movement of the card scraping device can be driven.

In the fourth shuffling stage, after the reverse rotation motion of the card scraper is started, the rotation motion direction of the large shuffling tray is switched to be the same as that in the first shuffling stage, and the card scraper reversely rotates relative to the large shuffling tray until the shuffling is finished.

The reverse rotation of the card scraper relative to the shuffling large plate has the advantage that when the number of mahjong is small, the mahjong can be guided to the card feeding port quickly, and the card feeding efficiency is improved.

Preferably, the rotation speed of the card scraper in the reverse rotation motion relative to the shuffling large disc is n3, wherein n3 is not less than n2 < n 1.

The fourth shuffling method:

the fourth shuffling method of the present embodiment is different from the third shuffling method in that the reverse rotational movement of the card scraper is an intermittent movement.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A card scraping mechanism is characterized by at least comprising:

a fixed seat;

the movable seat is arranged above the fixed seat;

the scraping arms are arranged outside the movable seat;

2. The card scraping mechanism of claim 1, wherein the separation limiting block comprises at least a first state in which the movable base is fixed relative to the fixed base and a second state in which the movable base is rotatably movable relative to the fixed base.

3. The card scraping mechanism as claimed in claim 1, wherein an elastic member is provided in a movement space between the movable base and the separation stopper.

4. The card scraping mechanism of claim 3, wherein the resilient member is a spring.

5. The card scraping mechanism as claimed in claim 4, wherein a spring receiving groove is provided on a side of the separation stopper facing the spring.

6. The card scraping mechanism as claimed in claim 1, wherein the axial guiding mechanism comprises at least one guiding rib arranged on the outer wall of the separation limiting block and a guiding groove arranged on the inner wall of the movable seat and matched with the guiding rib.

7. The card scraping mechanism according to claim 1, wherein the circumferential limiting mechanism comprises at least one limiting protrusion arranged on the separating limiting block and facing one side of the fixing base, and a limiting hole arranged on the fixing base and matched with the limiting protrusion.

8. The card scraping mechanism of claim 7, wherein the retaining hole extends axially through the retaining block.

9. The card scraping mechanism according to claim 7 or 8, wherein a track groove extending from the lowest position of the limiting protrusion to the upper surface of the fixing base is formed in one side of the limiting hole, and an arc-shaped track of the track groove is matched with the limiting protrusion.

10. The card scraping mechanism according to any one of claims 1 to 8, wherein a transmission gear ring is provided on the movable seat or the separation limiting block.