Mahjong machine stacking and pushing assembly and mahjong machine

Abstract

The application discloses a mahjong machine stacking and pushing assembly and a mahjong machine. The mahjong machine stacking and pushing assembly comprises a tile receiving plate arranged at a tile outlet of a conveying channel. A small roller is rotatably arranged at the tile outlet of the conveying channel. The small roller and the tile receiving plate jointly form a tile receiving table. The small roller is driven to rotate to push the mahjong tiles to a predetermined position on the tile receiving plate. In the application, the tile receiving table is composed of the tile receiving plate and the small roller. The tile receiving plate mainly receives the tiles, and the small roller in motion can still give the mahjong tiles enough kinetic energy after the mahjong tiles leave the conveying channel, so that the mahjong tiles can always be conveyed to the predetermined position on the tile receiving plate, and the phenomenon that the tiles are not aligned and collapsed due to the tiles not falling into position can be avoided.

Description

Technical Field

[0001] This invention belongs to the field of mahjong machine technology, specifically relating to a mahjong machine stacking and pushing assembly and a mahjong machine. Background Technology

[0002] In existing mahjong machines, the function of the stacking and pushing assembly is to stack mahjong tiles into piles and push the piles one by one onto the storage platform. Typically, the stacking and pushing assembly includes a tile receiving platform located at the tile outlet of the conveyor channel. This receiving platform is positioned flush with or below the conveyor channel. The mahjong tiles are translated or fall onto the receiving platform by the inertia of the moving conveyor structure (such as a conveyor belt, conveyor rollers, or tile suction wheel) within the conveyor channel, as exemplified by CN119770944A, CN223887383U, and CN223366212U.

[0003] The shortcomings of this tile-holding method are as follows: after the mahjong tiles leave the conveyor channel, their falling position on the tile-holding platform depends on the inertia of the original conveying process and is also affected by factors such as friction on the tile-holding platform. However, in a mahjong machine, the conveying speed of the mahjong tiles cannot be changed at will, and the friction on the mahjong tiles is uncontrollable. This often results in insufficient inertia of the mahjong tiles, making it difficult for them to fall correctly to the predetermined position on the tile-holding platform. Ultimately, this leads to the phenomenon that the top and bottom mahjong tiles of the tile stack are not aligned and the tile stack collapses when pushing the tiles. Summary of the Invention

[0004] The purpose of this invention is to provide a mahjong machine stacking and pushing assembly and a mahjong machine, which can ensure that the mahjong tiles are correctly moved to the preset position of the tile receiving plate.

[0005] To achieve the above-mentioned objectives, the technical solution of the present invention is as follows:

[0006] The present invention first provides a stacking and pushing assembly for a mahjong machine. The stacking and pushing assembly includes a card receiving plate disposed at the card outlet of the conveying channel. A small roller is also rotatably installed at the card outlet of the conveying channel. The small roller and the card receiving plate together form a card receiving platform. The small roller is driven to rotate to push the mahjong tiles to a predetermined position on the card receiving plate.

[0007] In this invention, the tile-holding platform consists of two parts: a tile-holding plate and small rollers. The tile-holding plate bears the main function of holding the tiles, while the moving small rollers can still give the mahjong tiles enough kinetic energy after they leave the conveying channel, so that the mahjong tiles can always be conveyed to the predetermined position on the tile-holding plate, and there will be no phenomenon of misalignment or collapse of the tile stack due to the mahjong tiles not being placed in the correct position.

[0008] This invention does not have special requirements on the length of the small roller, as long as it can rotate during the tile-carrying process and impart kinetic energy to the mahjong tiles. Therefore, even an extremely short roller can achieve this purpose. When the internal structure of the mahjong machine is limited, it is preferable to set the length of the small roller to be less than the width of the conveying channel or the tile-carrying plate.

[0009] This invention does not have any special requirements on the specific structure of the card-bearing plate, nor on how the card-bearing action of the card-bearing plate is performed. Taking the first card-bearing action as an example, the card-bearing plate is flush with the card outlet of the conveying channel. During the second card-bearing action, the position of the card-bearing plate can be lower than or higher than the conveying channel.

[0010] The plate holder of this invention can use any of the following plate holding procedures.

[0011] The first tile-receiving procedure is as follows: the tile-receiving plate has a first tile-receiving position that is flush with or slightly lower than the small roller to receive the first mahjong tile, and a second tile-receiving position that lowers to make the first mahjong tile flush with or slightly lower than the small roller. In this case, the second tile-receiving position is lower than the first tile-receiving position, so only one tile-receiving plate is needed.

[0012] The second type of tile-holding procedure is as follows: the tile-holding plate includes an upper tile-holding part and a lower tile-holding part that are set up separately. The upper tile-holding part has an upper tile-holding position that is flush with or slightly lower than the small roller to receive the first mahjong tile. The lower tile-holding part has a lower tile-holding position that is flush with or slightly lower than the small roller to receive the second mahjong tile.

[0013] Alternatively, the lower tile-bearing section may have a lower tile-bearing position that is flush with or slightly lower than the small roller to receive the first mahjong tile, and the upper tile-bearing section may have an upper tile-bearing position that is flush with or slightly lower than the small roller to receive the second mahjong tile.

[0014] At this point, although the plate is divided into two parts, the distance between the upper plate support and the lower plate support is fixed.

[0015] The third type of tile-holding procedure is as follows: the tile-holding plate includes a fixed tile-holding part and a lifting tile-holding part, which are set up separately at the top and bottom. The lifting tile-holding part has a tile-holding position that is flush with or slightly lower than the small roller to receive the first mahjong tile, and a clearance position that rises to allow the fixed tile-holding part to receive the second mahjong tile.

[0016] At this point, the tile-holding plate is divided into two parts. The lifting tile-holding part covers the fixed tile-holding part when receiving the first mahjong tile. After the lifting tile-holding part receives the tile and rises, the fixed tile-holding part is exposed, thus enabling it to receive the second mahjong tile. During both tile-holding processes, the lifting tile-holding part and the fixed tile-holding part each form a corresponding tile-holding platform with small rollers, ensuring that the mahjong tiles reach their predetermined positions on both parts.

[0017] In the first two types of card-bearing plate structures, the relative positions of each card-bearing part are fixed, so existing stacking and pushing drive units can be used to uniformly drive each card-bearing part. However, the situation is different in the third type of card-bearing plate structure: the lifting card-bearing part will rise and fall, but the fixed card-bearing part will remain in a fixed position. Therefore, in this invention, the fixed card-bearing part is fixedly set at the card outlet of the conveying channel, while the lifting card-bearing part is driven to rise and fall by the stacking and pushing drive unit.

[0018] This invention does not have specific requirements for the composition of the stacking and pushing drive unit, as long as it can drive the card lifting plate or the lifting and lowering card receiving part to rise and push the cards. In this case, the stacking and pushing drive unit may include:

[0019] Stacked push motor, which is fixedly mounted on the head unit box;

[0020] A cam, which is fixedly connected to the output shaft of the stacking motor and has a bearing curved groove recessed on its outer circumference;

[0021] The bearing swing arm has its fulcrum hinged to the head box, and its tail end is connected to the bearing bearing bearing that is rolled in the bearing curved groove.

[0022] The card holder is raised and lowered on the head box and fixedly connected to the card lifting plate or the card lifting part. The head end of the card holding arm is hinged to the card holder.

[0023] The head box is also hinged with a card pusher rod, the tail end of which forms a card pusher curve groove, and the top of the cam is provided with a card pusher bearing that is rolled in the card pusher curve groove; the head end of the card pusher rod is fixed with a card pusher head.

[0024] The present invention also provides a mahjong machine, which includes a tile holder, each side of which is provided with the aforementioned stacking and pushing assembly.

[0025] In the mahjong machine of the present invention, the fixed tile-bearing part (1c) can be directly formed on the top surface of the upper tile holder and adjacent to the tile storage platform;

[0026] Alternatively, the fixed plate support (1c) has an ear plate (1e) and the small roller (2) are mounted on the same shaft. The ear plate (1e) is not driven by the shaft, and the small roller (2) is driven or not driven by the shaft. The upper plate holder is provided with a top support member located below the fixed plate support (1c) to support the fixed plate support (1c).

[0027] Preferably, the mahjong machine of the present invention also includes a card-collecting wheel, and both the small roller and the card-collecting wheel are driven by a card-picking motor. This eliminates the need for a separate drive module for the small roller, saving on power costs.

[0028] There are various ways in which the picking motor drives the small roller to rotate, and this invention has no special requirements for this. Possible methods include:

[0029] The output shaft of the card-picking motor is fixed with a drive gear that is coaxial or not coaxial with the card-picking wheel, and the small roller is coaxially provided with a first transmission gear, which is driven by the drive gear through a reversing gear.

[0030] Alternatively, at least one conveying roller is provided between the small roller and the output shaft of the card picking motor. A second transmission gear is coaxially provided on the conveying roller. The second transmission gear is driven by the driving gear through a reversing gear, and the first transmission gear is driven by the second transmission gear through a reversing gear.

[0031] Alternatively, the output shaft of the card-picking motor is provided with a drive wheel, and the small roller is coaxially provided with a first driven wheel, and a transmission belt is sleeved between the drive wheel and the first driven wheel;

[0032] Alternatively, a second driven wheel is rotatably installed at the card outlet of the conveying channel, and a conveyor belt is sleeved between the second driven wheel and the card suction wheel; a third transmission gear is coaxially mounted on the second driven wheel; a first transmission gear is coaxially mounted on the small roller, and the first transmission gear is driven by the third transmission gear through a reversing gear.

[0033] Compared with the prior art, the beneficial effects of the present invention are reflected in:

[0034] 1. In this invention, the tile-holding platform consists of two parts: a tile-holding plate and small rollers. The tile-holding plate bears the main tile-holding function, while the moving small rollers can still give the mahjong tiles sufficient kinetic energy after they leave the conveying channel, so that the mahjong tiles can always be conveyed to the predetermined position on the tile-holding plate, and there will be no phenomenon of misalignment or collapse of the tile stack due to the mahjong tiles not falling into the correct position.

[0035] 2. In this invention, both the small roller and the card-collecting wheel are driven by the card-collecting motor, so there is no need to set up a separate drive module for the small roller, thus saving power costs. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the first structure of a mahjong machine stacking and pushing assembly according to the present invention;

[0037] Figure 2 This is a schematic diagram of a second structure of a mahjong machine stacking and pushing assembly according to the present invention;

[0038] Figure 3 This is a schematic diagram of a third structure of a mahjong machine stacking and pushing assembly according to the present invention;

[0039] Figure 4This is a schematic diagram of the structure of a mahjong machine according to the present invention;

[0040] Figure 5 for Figure 4 An exploded view of the stacking assembly used in the process;

[0041] Figure 6 for Figure 4 A schematic diagram of the exploded structure of the stacking and pushing components used in the process, viewed from another perspective; Figure 7 This is a schematic diagram of the structure of a mahjong machine according to the present invention; Figure 8 for Figure 7 Enlarged view of part A in the middle. Detailed Implementation

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0043] Example 1

[0044] like Figure 1 As shown, this embodiment of a mahjong machine stacking and pushing assembly includes a tile receiving platform for receiving mahjong tiles. The tile receiving platform consists of a tile receiving plate 1 and a small roller 2. The small roller 2 is rotatably installed at the tile outlet of the conveying channel 100, while the tile receiving plate 1 is connected to the stacking and pushing drive unit and is raised and lowered adjacent to the small roller 2.

[0045] In this embodiment, the tile-bearing plate 1 has two tile-bearing positions: a first tile-bearing position that is flush with or slightly lower than the small roller 2 to receive the first mahjong tile, and a second tile-bearing position that descends to be flush with or slightly lower than the small roller 2. Thus, each time a tile is received, the small roller 2 is positioned adjacent to the tile-bearing plate 1 or the first mahjong tile. After the mahjong tile leaves the conveyor channel 100, the rotating small roller 2 imparts kinetic energy to the mahjong tile, causing it to continuously move towards the tile-bearing plate 1, ensuring that the mahjong tile reaches the predetermined tile-bearing position.

[0046] The present invention does not have special requirements for the length of the small roller 2, as long as it can rotate during the tile-carrying process and impart kinetic energy to the mahjong tiles. Therefore, even a very short small roller 2 can achieve this purpose, as long as it can make contact with the mahjong tiles. When the internal structure of the mahjong machine is limited, it is preferable to set the length of the small roller 2 to be less than the width of the conveying channel 100 or the tile-carrying plate 1.

[0047] In this embodiment, the rotation of the small roller 2 can be driven by an independent drive module, or it can borrow power from other drive modules in the mahjong machine. For example, it can obtain kinetic energy from the card-picking motor 6 using the same method as in embodiment 4.

[0048] This embodiment does not have special requirements for the specific composition of other structures in the stacking assembly, as long as the plate holder 1 can be raised and lowered according to the program. There are existing stacking assemblies in the prior art that can achieve the same function, which will not be described in detail in this embodiment.

[0049] Example 2

[0050] like Figure 2 As shown in the figure, the structure of the mahjong machine stacking and pushing assembly in this embodiment is basically the same as that in embodiment 1, except that the tile-bearing plate 1 is composed of an upper tile-bearing part 1a and a lower tile-bearing part 1b which are set separately, and the relative positions of the upper tile-bearing part 1a and the lower tile-bearing part 1b are fixed.

[0051] In this embodiment, the plate 1 can use either of the following two plate-holding procedures to hold the plates:

[0052] 1. First, the upper tile-bearing part 1a is positioned at or slightly below the small roller 2 to receive the first mahjong tile. Then, the tile-bearing plate 1 rises, and the lower tile-bearing part 1b is positioned at or slightly below the small roller 2 to receive the second mahjong tile.

[0053] 2. First, the lower tile-bearing part 1b is positioned at or slightly below the small roller 2 to receive the first mahjong tile. Then, the tile-bearing plate 1 descends, and the upper tile-bearing part 1a is positioned at or slightly below the small roller 2 to receive the second mahjong tile.

[0054] Both of the above-mentioned card-bearing procedures are existing technologies, and their corresponding stacking component structures are also existing technologies, which will not be described in detail in this embodiment.

[0055] Example 3

[0056] like Figure 3 As shown, this embodiment of a mahjong machine stacking and pushing assembly has a structure that is basically the same as that of embodiment 1, except that: the card-bearing plate 1 includes a fixed card-bearing part 1c and a lifting card-bearing part 1d that are separately arranged at the top and bottom. The lifting card-bearing part 1d is equivalent to the card-bearing plate 1 in embodiment 1 and can be lifted and lowered; while the fixed card-bearing part 1c and the small roller 2 are arranged sequentially at the card outlet of the conveying channel 100. Their positions in the vertical direction are fixed, that is, they will not be lifted and lowered like the lifting card-bearing part 1d.

[0057] from Figure 3 As can be seen from this embodiment, the fixed plate bearing part 1c has an ear plate 1e, which is assembled with the small roller 2 on the same shaft. The shaft can rotate or not rotate, but in either case, the small roller 2 can rotate, while the ear plate 1e will not rotate around the shaft.

[0058] Since the fixed plate bearing part 1c is hinged to the shaft, a top support is also provided below the fixed plate bearing part (1c). This top support is used to support the fixed plate bearing part (1c) and keep it in a horizontal state.

[0059] In this embodiment, the tile-bearing procedure of the tile-bearing plate 1 is as follows: the lifting tile-bearing part 1d first descends and covers the fixed tile-bearing part 1c. The first mahjong tile leaving the conveying channel 100 reaches the predetermined position of the lifting tile-bearing part 1d after being pushed again by the small roller 2. Then the lifting tile-bearing part 1d rises, so that there is at least one mahjong tile's height between itself and the fixed tile-bearing part 1c. At this time, the second mahjong tile leaving the conveying channel 100 reaches the predetermined position of the fixed tile-bearing part 1c after being pushed again by the small roller 2.

[0060] Example 4

[0061] like Figure 3 As shown, this embodiment of a mahjong machine stacking and pushing assembly has a structure that is basically the same as that of embodiment 1, except that the fixed card-bearing part 1c is directly formed on the upper card holder of the mahjong machine and is adjacent to the card storage platform.

[0062] Example 5

[0063] like Figure 4 As shown, this embodiment of a mahjong machine includes a shuffling tray 3 and a card-picking bracket 4 located on the edge of the shuffling tray 3. A card-picking bracket 4 is rotatably connected to a card-suction wheel 5, and a C-shaped conveying channel 100 is formed on the outer periphery of the card-suction wheel 5. The card-picking bracket 4 is also equipped with a stacking and pushing assembly similar to that in embodiment 3.

[0064] In this embodiment, both the small roller 2 and the card-collecting wheel 5 are driven by the card-collecting motor 6 to save power costs. The way the card-collecting motor 6 drives the small roller 2 can be varied, and this embodiment has no special requirements. Due to the distance between the small roller 2 and the card-collecting motor 6, the transmission methods between them can be divided into several types.

[0065] like Figure 7 and Figure 8 As shown, the mahjong machine in this embodiment also includes a tile holder 8, on which a tile storage platform 81 is formed; the top support 7 is installed at the starting end of the tile storage platform 81.

[0066] The first method: When the small roller 2 is close to the card-picking motor 6, a gear transmission method can be used. For example... Figure 5 and Figure 6As shown, a drive gear 7 is fixedly mounted on the output shaft of the card-picking motor 6. This drive gear 7 can be coaxially or non-coaxially positioned with the card-picking wheel 5. A first transmission gear 8 is coaxially mounted on the small roller 2. When conditions permit, such as when the distance is closer, the drive gear 7 and the first transmission gear 8 can be located on the same side of the card-picking wheel 5, and a reversing gear 9 can be directly installed between the first transmission gear 8 and the drive gear 7 to achieve transmission between them; when conditions do not permit (e.g....), the drive gear 7 can be positioned on the same side of the card-picking wheel 5. Figure 6 In the case where the small roller 2 is relatively short and the drive gear 7 and the first transmission gear 8 are located on opposite sides of the card suction wheel 5, a longer conveying roller 10 needs to be installed at the card outlet of the conveying channel 100. The two ends of the conveying roller 10 are respectively equipped with second transmission gears 11. One of the second transmission gears 11 meshes with the drive gear 7 through the reversing gear 9, while the other second transmission gear 11 meshes with the first transmission gear 8 through the reversing gear 9.

[0067] The second method is to use a transmission belt when the small roller 2 is far from the card-picking motor 6 (for example, when the conveyor channel 100 is long). That is, a drive wheel is fixedly installed on the output shaft of the card-picking motor 6, and a first driven wheel is coaxially set on the small roller 2. The transmission between the two can be achieved by putting a transmission belt between the first driven wheel and the drive wheel.

[0068] The third method: When the small roller 2 is far from the card-picking motor 6, a combination of conveyor belt and gear can be used. That is, a second driven wheel is rotatably installed at the card outlet of the conveyor channel 100, and a conveyor belt is sleeved between the second driven wheel and the card-absorbing wheel 5 (or it can be a driving wheel independent of the card-absorbing wheel 5, which is also fixed on the output shaft of the card-picking motor 6); a third transmission gear is coaxially mounted on the second driven wheel; a first transmission gear 8 is coaxially mounted on the small roller 2, and the first transmission gear 8 is driven by the third transmission gear through a reversing gear 9.

[0069] This embodiment does not have special requirements for the specific structure of the stacking and pushing component; any stacking and pushing component capable of performing the stacking and pushing of cards is applicable to this invention. This embodiment only illustrates one usable stacking and pushing component structure. For example... Figure 5 and Figure 6As shown, the stacking assembly in this embodiment includes a head box 12 and a cover 13. A cam 14 is rotatably mounted inside the head box 12. The cam 14 is driven by the stacking motor 15. The cam 14 is linked to the lifting plate bearing part 1d located at the plate outlet of the conveying channel 100 via a plate bearing swing arm 16. The linkage method is as follows: a plate bearing curved groove 14a is formed on the outer peripheral surface of the cam 14. The middle part of the plate bearing swing arm 16 is hinged to the head box 12, and the tail end is equipped with a plate bearing bearing that rolls with the plate bearing curved groove 14a. The head end of the plate bearing swing arm 16 is hinged to the lifting plate bearing seat 17 mounted on the head box 12. The lifting plate bearing part 1d is fixedly mounted on the plate bearing seat 17.

[0070] The cam 14 is also linked to the pusher head 19 located at the outlet of the conveying channel 100 via the pusher arm 18. The linkage is as follows: the middle part of the pusher arm 18 is hinged to the head box 12, and the tail end of the pusher arm 18 forms a pusher curve groove 18a. The top surface of the cam 14 is fixed with a pusher bearing 20 that rolls with the pusher curve groove 18a. The pusher head 19 is fixed to or integrally formed with the head end of the pusher arm 18.

Claims

1. A mahjong machine stacking assembly, comprising a card-receiving plate (1) disposed at the card-dispensing port of a conveying channel (100), characterized in that, The card outlet of the conveying channel (100) is also rotatably installed with a small roller (2) adjacent to the card holder plate (1). The small roller (2) and the card holder plate (1) together form a card holder platform. The small roller (2) is driven to rotate to push the mahjong tiles to the predetermined position of the card holder plate (1).

2. The mahjong machine stacking assembly as described in claim 1, characterized in that, The length of the small roller (2) is less than the width of the conveying channel (100) or the plate (1).

3. The mahjong machine stacking assembly as described in claim 1, characterized in that, The card-receiving plate (1) has a first card-receiving position that is flush with or slightly lower than the small roller (2) to receive the first mahjong tile, and a second card-receiving position that descends to make the first mahjong tile flush with or slightly lower than the small roller (2).

4. The mahjong machine stacking assembly as described in claim 1, characterized in that, The card-bearing plate (1) includes an upper card-bearing part (1a) and a lower card-bearing part (1b) which are separately arranged. The upper card-bearing part (1a) has an upper card-bearing position that is flush with or slightly lower than the small roller (2) to receive the first mahjong tile. The lower card-bearing part (1b) has a lower card-bearing position that is flush with or slightly lower than the small roller (2) to receive the second mahjong tile. Alternatively, the lower tile-bearing section (1b) may have a lower tile-bearing position that is flush with or slightly lower than the small roller (2) to receive the first mahjong tile, and the upper tile-bearing section (1a) may have a lower tile-bearing position that is flush with or slightly lower than the small roller (2) to receive the second mahjong tile.

5. The mahjong machine stacking assembly as described in claim 1, characterized in that, The card-bearing plate (1) includes a fixed card-bearing part (1c) and a lifting card-bearing part (1d) which are set up separately at the top and bottom. The lifting card-bearing part (1d) has a card-bearing position that is flush with or slightly lower than the small roller (2) to receive the first mahjong tile, and a clearance position that is raised so that the fixed card-bearing part (1c) can receive the second mahjong tile.

6. The mahjong machine stacking assembly as described in any one of claims 3-5, characterized in that, The plate holder (1) or the lifting plate holder (1d) is lifted and lowered by a stacking and pushing drive unit; the stacking and pushing drive unit includes: Stacked push motor (15), which is fixedly mounted on the head box (12); Cam (14), which is fixedly connected to the output shaft of the stacking motor (15) and has a bearing curve groove (14a) recessed on its outer circumference. The bearing swing arm (16) is hinged to the head box (12) at its fulcrum and the tail end of the bearing swing arm (16) is connected to the bearing bearing bearing that is rolled in the bearing curved groove (14a). The card holder (17) is raised and lowered on the head box (12) and fixedly connected to the card lifting plate (1) or the card lifting part (1d). The head end of the card holding arm (16) is hinged to the card holder (17).

7. The mahjong machine stacking assembly as described in claim 6, characterized in that, The head box (12) is also hinged with a pusher rod (18), the tail end of which forms a pusher curve groove (18a), and the top of the cam (14) is provided with a pusher bearing (20) that is rolled in the pusher curve groove (18a); the head end of the pusher rod (18) is fixed with a pusher head (19).

8. A mahjong machine, comprising a tile holder, characterized in that, Each side of the upper plate is provided with a stacking assembly as described in any one of claims 1-7.

9. The mahjong machine as described in claim 8, characterized in that, The fixed card-receiving part (1c) is formed on the top surface of the upper card holder and is adjacent to the card storage platform; Alternatively, the fixed plate support (1c) has an ear plate (1e) and the small roller (2) are mounted on the same shaft. The ear plate (1e) is not driven by the shaft, and the small roller (2) is driven or not driven by the shaft. The upper plate holder is provided with a top support member located below the fixed plate support (1c) to support the fixed plate support (1c).

10. The mahjong machine as described in claim 8, characterized in that, It also includes a card-collecting wheel (5), and both the small roller (2) and the card-collecting wheel (5) are driven by a card-collecting motor (6); The output shaft of the card-picking motor (6) is fixed with a drive gear (7) that is coaxial with or different from the card-picking wheel (5). The small roller (2) is coaxially provided with a first transmission gear (8). The first transmission gear (8) is driven by the drive gear (7) through a reversing gear (9). Alternatively, at least one conveying roller (10) is provided between the small roller (2) and the output shaft of the card picking motor (6), and a second transmission gear (11) is coaxially provided on the conveying roller (10). The second transmission gear (11) is driven by the driving gear (7) through the reversing gear (9), and the first transmission gear (8) is driven by the second transmission gear (11) through the reversing gear (9). Alternatively, the output shaft of the card-picking motor (6) is provided with a drive wheel, and the small roller (2) is coaxially provided with a first driven wheel, and a transmission belt is sleeved between the drive wheel and the first driven wheel; Alternatively, a second driven wheel is rotatably installed at the card outlet of the conveying channel (100), and a conveyor belt is sleeved between the second driven wheel and the card suction wheel (5); a third transmission gear is coaxially provided on the second driven wheel; a first transmission gear (8) is coaxially provided on the small roller (2), and the first transmission gear (8) is driven by the third transmission gear through the reversing gear (9).

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