TW201330906A - Shuffler with characteristic of delivering cards in two steps - Google Patents

Abstract

The invention relates to a shuffler which delivers cards in two steps. The shuffler mainly includes two card boxes, a collecting box disposed between the two card boxes, and two card-delivering devices. The two card- delivering devices are configured to transfer cards from the two respective card boxes to the collecting box. Each of the card-delivering devices includes a first set of wheels and a second set of wheels. In a first step of the card delivering, the first set of wheels transfers cards from the respective card box to the second set of wheels. In a second step of delivering cards, the second set of wheels receives cards from the first set of wheels and transfers them to the collecting box.

Description

Two-stage card shuffling machine

The invention relates to the technical field of a shuffling machine, in particular to a two-stage card shuffling machine.

The conventional shuffling machines can be roughly divided into two different series of designs, one is to arrange a stack of random numbers into a stack, such as the shuffling machine shown in the patent cases of Taiwan I320320, 201023945 and M402125. Another type of two stacks of random numbers are arranged in a stack, such as the shuffling machines shown in the patents shown in M303044, M352388, and M335308.

Regarding the above-mentioned shuffling machine for arranging two stacks of random numbers into a stack, the basic structure includes two sets of cards for respectively placing a stack of cards, a set of cards located between the two sets of boxes, and corresponding respectively Two sets of delivery wheels located below the two boxes. Each of the delivery wheel sets is responsible for delivering the cards in its corresponding set of boxes directly into the set of cards. During the card-carrying operation, the two sets of wheels are kept running at a high rotational speed to continuously "shot" the cards in the two sets of cards into the set of cards until the cards in the two sets of boxes Until it is finished. Such a method of conveying the cards in the two card boxes to a set of cards by "direct" by the two delivery wheel sets does not control the number of cards sent by each of the card sets, nor does it control the two. The card delivery mode of the card wheel set.

The main object of the present invention is to provide a two-stage card shuffling machine. More specifically, the shuffling machine of the present invention mainly has two card-sending devices respectively for respectively transporting cards in two sets of cards on a rack into a set between the two sets of boxes. box. Each of the card-carrying devices includes an output wheel set for extracting cards from the corresponding set-top boxes, and an input wheel set for receiving the cards output by the output wheel set and the received cards Feed into the set of cards.

The shuffling machine further includes two first detectors and a control circuit. The two first detectors respectively correspond to cards for detecting the input wheel sets of the two card sending devices. Preferably, the shuffling machine may further include two second detectors respectively corresponding to the cards for detecting the input wheel sets of the two card-issuing devices. The control circuit is configured to control the output wheel set of each of the card-receiving devices according to the detection results of the first detector or the first and second detectors corresponding to each of the card-carrying devices Stop or run.

The shuffling machine further includes two pressing card members respectively corresponding to one side plates of each of the branding boxes, each of the pressing card members including one of the supporting rods fixed on the corresponding side plates, and connected to the supporting rod In one of the upper embossing portions, each of the embossing portions is configured to be vertically displaceable relative to its struts, and a bottom portion thereof is pressed against a card in its corresponding arranging box. Wherein, the side panel of each of the card boxes may be further configured to be turned to a position corresponding to opening or closing each of the card boxes to facilitate taking and placing cards in each of the card boxes.

The control circuit in the shuffling machine further has at least one card-sending mode, and controls the two card-carrying devices to perform a card-sending operation according to the at least one card-sending mode, the at least one card-sending mode defining the sending of the two card-sending devices The order in which the cards operate and the number of cards that each card-lifting device should deliver during its card-sending operation.

The shuffling machine further includes a lifting mechanism, a carrying portion, a receiving seat and a photodetector, the carrying portion is connected to the lifting mechanism and configured to receive a card entering the set card, the dealer wheel set The card is used to transport the card on the carrying portion to the receiving seat, and the photodetector is configured to detect whether there is a card on the receiving seat. The control circuit transmits a card-receiving signal to a robot arm when the detection result of the photodetector is "Yes".

Compared with the prior art, each card sending device of the present invention not only initiates a two-stage card transfer, but also can use this feature to control the number of cards sent to each card-sending device, and control each card-carrying device. Other inventive purposes of the card transfer mode.

Please refer to the first and second figures, which show a preferred embodiment of the shuffling machine of the present invention. The shuffling machine includes a frame 1 and two card transporting devices 2 disposed on the frame 1. The rack 1 has two card boxes 11 and a card box 12 located between the two card boxes 11. Each of the shoe boxes 11 is provided with a stack of cards, such as playing cards. The two card-carrying devices 2 are respectively located below the two card-boxes 11, and are respectively responsible for feeding the cards in the two card-boxes 11 into the card-box 12.

Preferably, the present invention further includes a lifting mechanism 3, a carrying portion 4 and a dealer wheel set 5 disposed on the frame 1. The carrying portion 4 is located in the set box 12 and is responsible for receiving the cards that are fed into the set box 12. The lifting mechanism 3 is responsible for the lifting operation of the carrying portion 4. The dealer wheel set 5 is responsible for transmitting the cards on the carrier 4 outward.

Preferably, the present invention further includes a receiving seat 6 provided on the frame 1. The receptacle 6 is responsible for receiving the cards sent from the dealer wheel set 5.

Preferably, the shuffling machine of the present invention can be assembled in a playing card game device (not shown). In this application, a robotic arm on the playing card game machine is responsible for grabbing or sucking. The card on the receiving seat 6 is sent to an identification mechanism for identification, and then the card is sent to a display player for viewing by the players of the playing card device to show fairness.

As shown in the first figure, the frame 1 preferably includes a front panel 100, a rear panel 101 and a bottom panel 102. In the present embodiment, the two card boxes 10 are identical. For convenience of description, only one of the shoe boxes 11 is introduced. That is, as shown in the first and second figures, the card box 11 is preferably The two opposite side plates 110, 111 and a support plate 112 are included, and the opposite sides of the plates are respectively locked to the front plate 100 and the rear plate 101 by screws. As shown in the third figure, the side plate 111 adjacent to the set card case 12 has a card opening hole 113. The space between the two side plates 110, 111 of the card box 11 can accommodate a stack of cards 8. The support plate 112 Responsible for supporting the stack of cards 8.

As shown in the first and second figures, the set card 12 preferably includes two facing plates 120, and the opposite sides of the plates are respectively locked to the front plate 100 by screws. Board 101. As shown in the third figure, the two partitions 120 each have a card hole 121 facing each other. Each of the card holes 121 is respectively facing the card hole 113 of the corresponding card box 11. The space between the partitions 120 of the set of cards 12 can accommodate the cards from the two sets of boxes 11.

In the embodiment, the two card-sending devices 2 are the same. For convenience of description, only one of the card-carrying devices 2 and their corresponding card-boxes 11 are introduced, as shown in the second and third figures. The card transporting device 2 includes an output wheel set 20 and an input wheel set 21 disposed on the frame 1. The output wheel set 20 is used to feed the cards 8 in the shoe 11 from their card openings 113. The input wheel set 21 is configured to receive the cards output by the output wheel set 20 and feed the received cards from the corresponding card opening holes 121 of the set card case 12 into the set card case 12.

Preferably, the output wheel set 20 is a pulley set under the card opening hole 113. More specifically, the card opening hole 113 is substantially a bottom of the output wheel set 20 and the side plate 111. A gap defined by the edge, in normal circumstances, it is only allowed to pass a card at a time. An opening A is defined between the bottom edge of the side plate 111 and a side edge of the support plate 112, and a majority of the upper portion 201 of the belt of the output wheel set 20 is located in the opening A. Therefore, the stack 8 is The supporting plate 112 is supported by the output wheel set 20 to form a supporting surface. When the front pulley 202 (drive wheel) of the output wheel set 20 is rotated clockwise, the lowermost card of the stack of cards 8 is transferred in the direction of the input wheel set 21, and from the card opening hole 113 The shoe box 11 is sent out.

Preferably, the input wheel set 21 includes an upper wheel 210 and a lower wheel 211 that abut each other. The upper wheel 210 (driven wheel) and the lower wheel 211 (drive wheel) are preferably rubber-shaped treads, which are normally allowed to pass only one card at a time. The upper wheel 210 and the lower wheel 211 are located on the output side of the output wheel set 20, and the two are in abutment with the card hole 113 and the card hole 121, respectively. Thus, when the lower wheel 211 is rotated clockwise, the entire input wheel set 21 can receive the card output from the output wheel set 20, and the received card is correspondingly received from the set card 12. The hole 121 is fed into the set box 12.

As shown in the second and fourth figures, the shuffling machine of the present invention further includes a power source 9 disposed on the frame 1 for providing the two output wheel sets 20 and the two input wheel sets 21 described above. The power required, preferably of course, further supplies the power required by the lifting mechanism 3 and the dealer wheel set 5.

The majority of the mechanism of the power source 9 is disposed behind the frame 1. The utility model comprises: two first motors 90 for driving the two output wheel sets 20 and a transmission mechanism 901 thereof; a second motor 91 of the two input wheel sets 21 and a transmission mechanism 910 thereof; a third motor 92 for driving the lifting mechanism 3; and a fourth motor 93 for driving the license wheel set 5 and Transmission mechanism 930.

Preferably, the above-mentioned transmission mechanism uses a pulley transmission mechanism.

The lifting mechanism 3 preferably includes two lead rods 31 connected to one of the lead screws 30 of the third motor 92, respectively on the two sides of the lead screw 30 (in the fourth figure, the other sliding rod is supported by a pillar B) Blocked, and a lifting seat 32 screwed onto the lead screw 30 and sliding on the two sliding rods 31. The lifting base 32 is connected to the carrying portion 4 (essentially two supporting arms), and the carrying portion 4 extends into the set box 12 through the two sliding slots 101a of the rear plate 101 (in the first In the four figures, the other chute is blocked by the slider 31). In this way, when the third motor 92 drives the lead screw 30 to rotate forward or reverse, the lifting block 31 can move along the two sliding rods 31 correspondingly, so as to make the lifting base 31 The connected bearing portion 4 moves along the two chutes 101a in a corresponding ascending and descending motion.

As shown in the second and fourth figures, the shuffling machine of the present invention further includes an electronic control unit (not shown) connected to the power source 9. The electronic control unit includes at least one microprocessor and at least one memory. The control circuit, and preferably also includes an input device and an output device electrically connected to the control circuit, such as a touch screen, a liquid crystal display, a button set or a keyboard, a mouse and the like. In any case, the control circuit has a computer computing capability to control the operation of the two card-receiving devices 2 through the control of the power source 9. Preferably, the control unit 3 and the dealer wheel set 5 are further controlled. The action is carried out. More specifically, the control circuit has at least one card transfer mode, and can control the two card transfer devices 2 to perform a card transfer operation according to the at least one card transfer mode, and the at least one card transfer mode defines the two card transfer devices 2 The order of the card-sending operations and the number of cards that each card-carrying device 2 should deliver during its card-sending operation.

Generally speaking, the control circuit usually has several card-playing modes pre-established by computer program for a user to select, one of which is a random card-sending mode, and the user only needs to press a specific Pressing the button or inputting a specific command to the control circuit, the control circuit drives the two card-carrying devices 2 to randomly perform the card-carrying, and the number of cards sent by each card-carrying device 2 is random at a time. In addition, the control circuit further has a setting program for executing to generate a human-machine interface displayed on the display. The human-machine interface is configured to guide the user to establish his own desired card-sending mode to be stored in the control circuit.

When the shuffling machine of the present invention is activated, the control circuit first drives the two card-receiving devices 2 to transport the cards in the corresponding set-top boxes 11 to the set-up box 12 according to a preset card-sending mode until When the end condition is established. For example, when the card transfer mode is:

L1→R2→L2→R1→L3→R1,

Wherein, L and R are respectively the card-carrying device codes, which respectively represent the left and right card-carrying devices 2, and the numbers next to L or R represent the number of cards to be dealt. Therefore, the above-mentioned card delivery mode means that the two card-issuing devices 2 perform card delivery according to the following:

a) the left card-carrying device 2 sends one card during its card-sending operation;

b) the right card-carrying device 2 sends two cards during its card-sending operation;

c) the left card-carrying device 2 sends two cards during its card-sending operation;

d) the right card-carrying device 2 sends one card during its card-sending operation;

e) the left card-carrying device 2 sends 3 cards during its card-sending operation;

f) the right card delivery device 2 sends one card during its card operation; and

Steps a through f are repeated until the end condition is established.

The case where the termination condition is established includes, but is not limited to, the following two types:

(1) When the cards in the two card boxes 11 are all sent out, in this case, the control circuit can be known through the photodetectors 73 respectively disposed in the two card boxes 11 (see The second picture), as long as the two photodetectors 73 do not detect the presence of the card, it indicates that the cards in the two card boxes 11 have been delivered.

(2) When the number of cards in the set card 12 is accumulated to a target value, in this case, the electronic control unit can know through the two first detectors 70 disposed in the chassis 1. (Please refer to the third figure), which will be detailed later.

After the two card-carrying devices 2 complete the card-sending according to the above-mentioned card-sending mode, it means that the cards in the two card-boxes 11 have been washed and stacked in the card-box 12, and thus, the washing of the present invention The card machine completes the so-called shuffling operation, and then another card operation is performed, which will be described later.

As shown in the third figure, in the present embodiment, the two first detectors 70 of the electronic control unit are identical, and they are all electrically connected to the control circuit of the electronic control unit. For convenience of description, only one of the first detectors 70 is introduced, that is, the first detector 70 (optional commercially available light interrupting switch) is located in the input wheel set 21 of the carding device 2 and Between the corresponding card holes 121 on the set card box 12, for detecting the card sent from the input wheel set 21, the purpose is to assist the control circuit to determine whether the card has completely left the input wheel set 21 Enter the set box 12.

To facilitate the process of how each card transporting device 2 transports one of its corresponding shoe boxes 11 to the shoe box 12, only one of the card transporting devices 2 and its corresponding card box 11 is provided. Referring to the first detector 70, that is, under the control of the control circuit of the electronic control unit, as shown in the fifth figure, the output wheel set 20 of the card transfer device 2 is operated with the input wheel set 21, And the rotation speed of the input wheel set 21 is higher than the output wheel set 20. At this time, the lowermost card 8a of the shoe 11 is transported by the output wheel set 20 in the direction of the input wheel set 21. As shown in the sixth figure, when the card 8a is transported by the output wheel set 20 to the input wheel set 21, the input wheel set 21 receives the card 8a and continues to transport it in the direction of the card hole 121. Then, the card 8a will reach the first detector 70. After the control circuit knows the situation through the first detector 70, the output wheel set 20 is suspended. At this time, only the input wheel set is available. 21 continues to deliver the card 8a. As shown in the seventh figure, the card 8a has left the card box 11 and entered the card hole 121, and the next card 8b has contacted the output wheel set 20. At this time, only the card 8a is continuously transported. And the next card 8b is completely motionless, and this condition will remain until the card 8a leaves the first detector 70 and falls into the set box 12, as shown in the eighth figure.

After the control circuit knows the condition shown in FIG. 8 through the first detector 70, if the card-sending mode is to arrange that the card-carrying device 2 only sends one card in this operation, the control circuit The card transfer device 2 is suspended and the other card transfer device 2 operates in accordance with the card transfer mode. If the card-carrying mode is to arrange for the card-carrying device 2 to send two or more cards in this operation, the control circuit resumes the operation of the output wheel set 20 to start transporting the next card 8b. . Wherein, the input wheel set 21 is always running until the control circuit stops the card transfer device 2 from operating. According to the foregoing card-sending process, each time the card-carrying device 2 sends a card to the first detector 70, its output wheel set 20 is suspended until the card leaves the first detector 70. The output wheel set 20 resumes operation to deliver the next card, which means that the next card will not be transported before the previous card has entered the set card 12, thus it can be seen that The card-receiving device 2 of the invention can ensure that the cards are transported into the set-box 12 one by one, and that two or more sheets are not delivered at a time. Thus, how many cards are sent to the set card 12, and the control circuit can correctly count out based on the detection result of the first detector 70.

As can be seen from the above description, the card transfer device 2 of the present invention is equivalent to a two-stage card transfer for each card in the corresponding card box 11, that is, the card transfer device 2 is at the first The stage utilizes its output wheel set 20 to draw the cards from its corresponding set-top box 11, and in the second stage, the cards are "injected" into the set-box 12 using its high-speed rotating input wheel set 20. Mechanism design such as the card transfer device of the present invention has not been seen in the prior art, and the application of such a mechanism to the above embodiment does produce some practical effects.

Preferably, as shown in the third figure, the electronic control unit further includes two second detectors 71 disposed in the frame 1. In this embodiment, the two second detectors 71 are identical, and they are all electrically connected to the control circuit of the electronic control unit. For convenience of description, only one of the second detectors 71 is introduced, that is, the second detector 71 (optional commercially available light interrupting switch) is located at the output wheel set 20 of the carding device 2 and Between the input wheel sets 21 for detecting the cards sent from the output wheel set 20, the purpose is to assist the control circuit in determining whether the cards have completely left the output wheel set 20 and enter the input wheel set 21.

The control circuit can use the detection result of the second detector 71 to determine some fault conditions, for example, the card is stuck for the reason and stays at the second detector 71 for more than a preset time. The control circuit can also use the detection result of the second detector 71 to count the number of cards entering the set card 12. The control circuit can further use the detection results of the first and second detectors 71 to count the number of cards entering the set card 12, or perform some status determination, or perform some specific control, for example, in the When the first and second detectors 70 and 71 do not detect the card, the card indicates that the card has indeed left the output wheel set 20 and the input wheel set 21 and enters the set box 12, and no card is present at all. The control circuit resumes operation of the output wheel set 20 to deliver the next card.

Preferably, as shown in the second and third figures, the shuffling machine of the present invention further includes two pressing card members 75, and the two pressing card members 75 are respectively disposed in each of the branding boxes 11 in a freely movable manner. On the other side plate 110, the cards 8 in the two card boxes 11 are respectively pressed. In the present embodiment, the two pressing members 75 are the same, and for convenience of explanation, only one of the pressing members 75 will be described. That is, the pressing member 75 includes a strut 751 fixed to the other side plate 110, and a pressing portion 750 coupled to the strut 751, the pressing portion 750 being configured to be opposite to the strut The strut 751 is moved up and down, and a bottom thereof is pressed against the card 8. When the card 8 in the shoe box 11 is gradually reduced, the card member 75 gradually slides down in a direction. This means that the card member 75 is pressed against the stack of cards 8 during the card-feeding of the card-carrying device 2, so that the lowermost card of the stack of cards 8 is always in good condition with the output wheel set 2. The contact is made to ensure that it will be sent out smoothly to the shoe box 11.

Preferably, as shown in the ninth figure, each of the shoe boxes 11 of the shuffling machine of the present invention further has a door opening 115 facing the two side plates 110, respectively. Each side panel 110 is configured to be pivoted to an open position and a closed position, and when the side panel 110 of any of the set boxes 11 is in the open position, the side panel 110 of the one of the set boxes 11 is The corresponding doorways 115 are separated. At this time, the above-mentioned pressing member 75 also leaves the one of the set-boxes 11 to facilitate placing a new stack of cards into the one of the set-boxes 11. When the side panel 110 of any of the branding boxes 11 is in the closed position, the side panel 110 of the one of the branding boxes 11 is covered with the corresponding door opening 115 to prevent the cards in the one of the branding boxes 11 from being locked. Scattered outside. In addition, the front panel 100 of the rack 1 also has a door opening 105 and a rotatable door 106 corresponding to the door opening 105.

As shown in the tenth figure, during the card-feeding of the two card-receiving devices 2, the carrying portion 4 of the set-up box 12 is gradually lowered under the control of the control circuit, and is kept ready for receiving at any time. The height of the card. After the control circuit ends the card-sending operation of the two card-receiving devices 2, all the cards fed into the set-up box 12 are stacked on the carrier portion 4 into a stack of cards 8. At this time, the control circuit will The carrier portion 4 is lowered to the lowest point as shown in FIG. At this time, a photodetector 76 of the electronic control unit detects the situation.

As shown in Fig. 12, the dealer wheel set 5 is preferably a pulley set. When the control circuit detects that the carrying portion 4 has been lowered to the lowest point by the photodetector 76, the control circuit operates the dealer wheel set 5 to make the card 8 of the carrying portion 4 one by one. The ground is output to the receiving base 6. Preferably, the electronic control unit further includes a photodetector 77 electrically connected to the control circuit, and is disposed on the receiving base 6 and configured to detect the presence or absence of a card. When the photodetector 77 detects the presence of a card, the control circuit transmits a deciphering signal to the robot arm described above to cause the robotic arm to remove the card.

Preferably, the electronic control unit further includes a plurality of light detectors disposed on the frame 1 for different applications, for example, light disposed on each of the branding boxes 11 for detecting the height of the card. Detector 78 (see Figures 3 and 4).

In any event, anyone can obtain sufficient teaching from the description of the above examples, and it is understood that the present invention is indeed different from the prior art, and is industrially usable and progressive. It is the invention that has indeed met the patent requirements and has filed an application in accordance with the law.

1. . . frame

11. . . Card box

12. . . Set box

100. . . Ger

101. . . Back plate

101a. . . Chute

115. . . Doorway

102. . . Bottom plate

110, 111. . . Side panel

112. . . Support plate

113. . . Card hole

120. . . Partition

121. . . Entry hole

A. . . Opening

2. . . Card delivery device

210. . . Upper round

211. . . Lower round

3. . . Lifting mechanism

30. . . Lead screw

31. . . Slider

B. . . pillar

32. . . Lifting seat

4. . . Carrying part

5. . . Dealing wheel set

6. . . Receiving seat

70. . . First detector

71. . . Second detector

75. . . Pressing card

751. . . Strut

750. . . Card department

76, 77, 78. . . Light detector

8. . . brand

9. . . Power source

90. . . First motor

901, 910, 930. . . Transmission mechanism

91. . . Second motor

92. . . Third motor

93. . . Fourth motor

The first figure shows the stereoscopic appearance of a preferred embodiment of the present invention.

The second figure shows the stereoscopic appearance of the preferred embodiment of the invention (the front panel 100 of the frame 1 is omitted.

The third figure is a front view of one of the card transporting devices 2 of the preferred embodiment of the present invention.

The fourth figure shows the three-dimensional appearance (back) of the preferred embodiment of the present invention.

Figures 5 to 8 show the card transfer process of one of the card transporting devices 2 of the preferred embodiment of the present invention.

The ninth drawing shows the state in which the one side panel 110 of the preferred embodiment of the present invention is opened.

The tenth to eleventh drawings show the lifting operation of the carrying portion 4 of the preferred embodiment of the present invention.

Fig. 12 is a view showing the card discharging operation of the dealer wheel set 5 of the preferred embodiment of the present invention.

1. . . frame

11. . . Card box

12. . . Set box

100. . . Ger

101. . . Back plate

110, 111. . . Side panel

2. . . Card delivery device

6. . . Receiving seat

Claims (7)

A two-stage card shuffling machine includes: a rack having two sets of boxes and a set of boxes located between the two sets of boxes; two card-sending devices disposed on the frame and respectively Correspondingly located below the two card boxes, each card-carrying device includes an output wheel set for sending cards in its corresponding card box from its card-out hole, and an input wheel set for receiving The card outputted by the output wheel set and the received card are fed into the set card; and a power source is disposed on the frame for providing the power required by the two card transporting devices. The two-stage card shuffling machine as described in claim 1, comprising: two first detectors disposed on the frame and corresponding to the input for detecting the two card sending devices respectively a card sent by the wheel set; and a control circuit electrically connecting the two first detectors and the power source, and controlling the stop of the corresponding output wheel set according to the detection result of each first detector Or running. The two-stage card shuffling machine as described in claim 1, comprising: two first detectors disposed on the frame and corresponding to the input for detecting the two card sending devices respectively a card sent by the wheel set; two second detectors are disposed on the frame, and respectively corresponding to cards for detecting the output wheel sets of the two card-issuing devices; a control circuit electrically connecting the The two first detectors, the two second detectors, and the power source are configured to be controlled according to the detection results of the first detector and the second detector corresponding to each of the card sending devices The stop or operation of the output wheel set of each of the card transfer devices. The two-stage card shuffling machine as claimed in claim 1, further comprising two pressing card members respectively corresponding to one side plate of each card box, each pressing card member being fixed on the same. a struts on the corresponding side plates, and a pressing plate portion connected to the struts, each embossing portion is configured to be vertically displaceable relative to the struts thereof, and a bottom portion thereof is pressed against the phase thereof Corresponding to the cards in the box. A two-stage card shuffling machine as claimed in claim 4, wherein each of the shoe boxes has a door opening corresponding to its own side plate, and the side plate of each card box is configured to be pulled Turning to an open position and a closed position, when the side panel of each of the card boxes is in the open position, the side panels of each of the card boxes are separated from the corresponding door openings, and the side panels of each of the card boxes When in the closed position, the side panel of each of the shoe boxes is closed with its corresponding door opening. The two-stage card shuffling machine as described in claim 2, wherein the control circuit has at least one card transfer mode, and controls the two card transfer devices to perform a card transfer operation according to the at least one card transfer mode. The at least one card transfer mode defines the order of the card-sending operations of the two card-issuing devices and the number of cards that each card-carrying device should deliver during its card-sending operation. The two-stage card shuffling machine according to claim 1, comprising: a lifting mechanism which is arranged to be lifted and lowered on the frame; a carrying portion connected to the lifting mechanism and located at the set a card for receiving a card entering from the two card holes of the card box; a card wheel set disposed on the frame and located below the carrier portion for outwardly playing the card on the carrier portion a receiving seat disposed on the frame and located on one side of the dealer wheel set for receiving a card sent by the dealer wheel set; and a light detector disposed on the receiving seat and electrically Connected to the control circuit for detecting whether there is a card on the receiving seat; wherein the power source further provides power required by the lifting mechanism and the license wheel set, the control circuit is at the photodetector When the detection result is "Yes", a deciphering signal is transmitted to a robot arm.