CN213049339U

CN213049339U - Playing card collator based on machine vision

Info

Publication number: CN213049339U
Application number: CN202021746035.7U
Authority: CN
Inventors: 胡齐家; 陈广胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-27
Anticipated expiration: 2030-08-19

Abstract

The utility model relates to a machinery shuffles technical field, more specifically relates to a playing card collator based on machine vision. Is used for solving the problems of low efficiency and easy damage to the playing cards when mechanically shuffling. The machine vision-based poker card arranging machine comprises a poker card arranging mechanism, a poker card surface overturning mechanism and a control center; the card aligning mechanism collects disordered playing cards, arranges the collected playing cards into a stack of playing cards with the periphery aligned, and then sends the arranged playing cards into the card surface overturning mechanism; the card surface turnover mechanism is used for carrying out front and back classification on the playing cards sorted by the card aligning mechanism, and turning the playing cards with the front side facing upwards or the back side facing upwards to enable all the playing cards to be sorted into a stack of playing cards with the peripheries aligned and the card surfaces facing uniformly; the card aligning mechanism and the card surface turnover mechanism complete the operation under the control of the control center. The technical effect of improving the shuffling efficiency and protecting the playing cards from being damaged is achieved by the method.

Description

Playing card collator based on machine vision

Technical Field

The utility model relates to a machinery shuffles technical field, more specifically relates to a playing card collator based on machine vision.

Background

Playing cards are popular among people as a wide-spread entertainment activity. In the playing card activity, shuffling is an essential step, and the conventional shuffling is manually washed, so that the problems of uneven shuffling, possible cheating and fatigue after the number of shuffling times is increased exist. Accordingly, mechanical shuffling devices have been proposed to address these deficiencies, instead of manual hand washing. The prior art mechanical shuffling devices typically include three parts, a shuffling mechanism, a card arranging mechanism, and a dealing mechanism. The card shuffling mechanism is responsible for disordering the sequence of the playing cards, the card arranging mechanism is responsible for arranging the playing cards disordered in sequence in order and unifying the front and the back, and the card dealing mechanism is responsible for dividing the playing cards arranged in order into a plurality of parts. In the prior art, in the card arranging process of the card arranging mechanism, a mode of adding a stop lever by a high-speed rotating disc (such as patent document with publication number of CN 201721763377.8) is adopted, so that the playing cards are easily damaged, and a device for detecting whether the playing cards are arranged well or not is not arranged in the arranging process, so that the arranging efficiency of the playing cards is low. Due to the lack of a device for detecting whether the playing cards are arranged well or not, the situation that the playing cards continue to rotate after being arranged well can occur in the high-speed rotating disc, and resource waste can also be caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art's at least one kind defect (not enough), provide a playing card collator based on machine vision for inefficiency just causes the problem of damage to playing card easily when solving the mechanical shuffle, in order to reach the technological effect of protecting playing card when improving shuffle efficiency and avoiding damaging.

The technical scheme adopted by the utility model is that the playing card arranging machine based on machine vision comprises a card arranging mechanism, a card surface turnover mechanism and a control center; the card aligning mechanism collects disordered playing cards, the collected playing cards are laterally erected in the card aligning mechanism, the collected playing cards are arranged into a stack of playing cards aligned all around, and the specific arranging process is as follows: firstly, a soft card shifting tool is used for shifting the side-standing playing cards to two ends, then the side surfaces of the playing cards are pushed to be aligned and matched with a detection device to detect an overall result, and then the detected playing cards are sent into a card surface turnover mechanism, specifically a visual identification area of the card surface turnover mechanism; the card surface turnover mechanism is used for carrying out front and back classification on the playing cards which are arranged by the card arranging mechanism, and turning the playing cards with the front side facing upwards or the back side facing upwards to arrange all the playing cards into a stack of playing cards with the peripheries aligned and the card surfaces facing uniformly; the card aligning mechanism and the card surface turning mechanism complete the operation under the control of the control center. The utility model arranges the disordered playing cards into a stack of playing cards with the periphery aligned and the card surface facing to be uniform by designing the card arranging mechanism, the card surface overturning mechanism and the control center, so as to realize the arranging work of the playing cards; meanwhile, the poker card shifting tool made of soft materials is adopted to simulate the poker card shifting action of hands during shuffling, side-standing poker cards are shifted down to two ends to enable the long sides of the poker cards to be parallel and level, and then the short sides of the poker cards are pushed to be parallel and level, so that the scheme can well protect the poker cards, reduce the damage to the poker cards during shuffling and realize high-efficiency shuffling; meanwhile, a detection device is matched in the process of arranging the playing cards to simulate human eyes to monitor the arrangement result, and the next link is timely started after the arrangement is finished, so that redundant operation is avoided, and the efficiency of arranging the playing cards by the card arranging mechanism is further improved.

Furthermore, the card aligning mechanism comprises a card collecting channel, a card groove, an aligning device, a detection device and a push rod; the card collecting channel is arranged above the card groove, and disordered playing cards slide into the card groove through the card collecting channel; the aligning device is arranged above and at one side of the card slot, and carries out upper end leveling and side face leveling operations on the collected playing cards according to instructions of the control center, so that the collected playing cards are arranged into a stack of playing cards with the periphery aligned; the detection device is arranged on the card slot and used for detecting whether the aligning device aligns the playing cards in the card slot into a stack of playing cards with the periphery aligned or not and sending the detection result to the control center; the control center determines whether to send a card pushing instruction to the push rod according to the received detection result; and when the detection result received by the control center is yes, sending a card pushing instruction to the push rod, and pushing the playing cards in the card slot into the card surface turnover mechanism by the push rod according to the received instruction. Each component of the card aligning mechanism is skillfully matched to realize the aligning work of the playing cards, wherein the core components are a card slot, an aligning device and a detection device.

Further, the card slot comprises a bottom surface, a first side surface, a second side surface and a third side surface; the first side surface is arranged to be an inclined surface, and an included angle formed between the first side surface and the bottom surface is 30-85 degrees. The first side of the card slot is arranged to be an inclined plane to cooperate with the card collecting channel to receive the playing cards sliding into the card slot, so that the disorder degree of the playing cards in the sliding process is reduced, and the included angle formed between the first side of the card slot and the bottom surface is preferably 75 degrees.

Furthermore, the aligning device comprises a poker shifting brush and an aligning inclined plate; an opening is arranged between the first side surface and the third side surface, and the push-and-align inclined plate is arranged at the opening; the push-level sloping plate comprises a first panel and a second panel, wherein the first panel is perpendicular to the bottom surface, the second panel is connected above the first panel, and an angle formed by the second panel and the first panel is 95-175 degrees. The push-level sloping plate enters the card slot through the opening, and pushes the short edges of the playing cards to be level through the reciprocating motion in the horizontal direction; meanwhile, two panels of the push-in inclined plate are designed into different angles to play different roles respectively, wherein the first panel is vertical to the bottom surface of the card slot, and the short edge of the playing card is pushed to be flush through a 90-degree included angle formed by the first panel and the bottom surface; the second panel of the push-in inclined plate and the first panel form an included angle larger than 90 degrees, so that certain space can be reserved for the playing cards which are not arranged and inclined, and the playing cards are prevented from being damaged.

Furthermore, the card poking brush is a soft brush, the width of the brush is more than or equal to that of the card slot, and the length of the brush is more than or equal to that of the card slot; the card-shifting brush is arranged between the card collecting channel and the card slot. The soft brush is selected to provide the best protection for arranging the playing cards, and the soft brush needs to cover the upper part of the whole card slot so as to ensure that the long sides of all the playing cards are brushed to be flush. The poker card shifting brush (151) moves back and forth left and right above the poker card slot (11) under the control of the control center, the push-up sloping plate (152) moves back and forth left and right along the bottom surface (114) under the control of the control center, and the back and forth movement of the poker card shifting brush (151) and the push-up sloping plate (152) is carried out in a staggered way without conflict.

Furthermore, two channels are arranged on the bottom surface at intervals, and the shape and the size of each channel are matched with the shape and the size of one end, close to the card slot, of the push rod. The card is provided with a turnover mechanism, the turnover mechanism drives the card slot to turn over 90 degrees towards one side back to the push rod, so that the channel is right opposite to the push rod. When the card slot is turned by 90 degrees, the push rod can push the playing cards into the card face turning mechanism through the two channels arranged at intervals on the bottom surface.

Furthermore, a top notch plate is arranged below the card slot and is connected with the base support through a spring, and the top notch plate is tightly attached to the bottom surface of the card slot under the action of elastic force. Through the structure that design top notch board and base support pass through spring coupling, ingenious is provided with two passageways with above-mentioned bottom surface interval and seals, avoids the cards in the card groove to drop, and when the card groove upset 90 was spent simultaneously, top notch board and spring were pushed down simultaneously, exposed two passageways of bottom surface.

Furthermore, the card face turnover mechanism comprises an identification groove, a visual identification device, a mechanical arm, a front box, a back box and a box turnover mechanism; the recognition groove, the front box and the back box are arranged on the same straight line, and the mechanical arm is arranged above the recognition groove, the front box and the back box; the recognition groove receives a stack of playing cards pushed by the push rod, the visual recognition device is arranged above the recognition groove, and the visual recognition device recognizes the front side and the back side of the topmost playing card and sends a recognition result to the control center; the control center sends a command of reaching the front box or a command of reaching the back box to a mechanical arm which is about to grab the playing cards according to the received identification result; the box turning mechanism turns over the front box or the back box according to the instruction of the control center to obtain a stack of playing cards with the card faces facing to the same direction. Under the cooperation of the components, the card face turnover mechanism smoothly realizes the front and back classification of the playing cards and the unification of the card face orientations so as to finish the final work of the arrangement of the playing cards, wherein the core components are a visual identification device, a mechanical arm and a box turnover mechanism.

Further, the identification groove comprises a long side surface and two short side surfaces, wherein two ends of the long side surface are respectively connected with the two short side surfaces, and the angles formed by the two short side surfaces are 90 degrees and 85 degrees to 175 degrees. The short sides of the identification slot correspond to the short sides of the playing cards in the identification slot, wherein one of the short sides is designed to be at an angle of 85 DEG-175 DEG to the long side so as to leave a little room for the playing cards to slide sideways when the playing cards are pushed into the identification slot.

Further, the box turning mechanism is arranged on the front side box or the reverse side box, and turns the front side box 180 degrees to the position above the reverse side box or turns the reverse side box 180 degrees to the position above the front side box according to the instruction of the control center. The box turning mechanism turns the front box or the back box in an inverted manner for 180 degrees so as to realize the unification of the face orientation of the playing cards.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a design collection tablet passageway and tablet groove matched with structure for mixed and disorderly playing card side is stood in the tablet groove, designs respectively again in tablet groove top and side and dials the tablet brush and push away neat swash plate, dials down the playing card of erectting to both ends, pushes away the neat work of messenger's playing card in order to accomplish the first stage to the side of playing card again. In the arranging process, a soft brush is particularly taken care of to protect the playing cards from being damaged, meanwhile, the card shifting brush and the aligning sloping plate imitate a hand to shift the playing cards to two ends when shuffling, then the two ends of the playing cards are aligned, and meanwhile, the card shifting brush and the aligning sloping plate are matched with a detection device to finish the aligning work of the playing cards in the most efficient way when arranging the playing cards. Therefore, the design scheme realizes the technical effect of protecting the playing cards from being damaged while improving the shuffling efficiency.

Drawings

Fig. 1 is an overall structure diagram provided in the embodiment of the present invention.

Fig. 2 is a partial structural diagram provided in the embodiment of the present invention.

Fig. 3 is an internal overall structure diagram provided by the embodiment of the present invention.

Fig. 4 is a first view structure diagram of a card slot according to an embodiment of the present invention.

Fig. 5 is a view structure diagram of the bottom of the card slot according to the embodiment of the present invention.

1. A card inlet; 2. a card outlet; 10. a card collecting channel; 11. a card slot; 12. a detection device; 13. a spring; 14. a base support; 15. an aligning device; 151. a poker card shifting brush; 152. pushing and aligning the inclined plates; 17. a push rod; 18. a detection device; 21. identifying a slot; 22. a front face box; 23. a reverse case; 24. a box turning mechanism; 25. a robot arm; 111. a first side surface; 112. a second side surface; 113. a third side; 114. a bottom surface; 115. a turnover mechanism; 1141. a channel.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 and 2, the playing card collator based on machine vision in the embodiment includes a card aligning mechanism, a card face turning mechanism and a control center, wherein the card aligning mechanism and the card face turning mechanism complete respective operations under the control of the control center. The exterior of the machine vision-based poker card collator is wrapped by a shell, and a card inlet 1 and a card outlet 2 are reserved on the exterior; the card aligning mechanism comprises a card collecting channel 10, a card slot 11, a top slot plate 12, a spring 13, a base support 14, an aligning device 15, a push rod 17 and a detection device 18; the card aligning mechanism takes a card slot as the center, a top slot opening plate 12 is arranged below the card slot 11, and the top slot opening plate 12 is connected to a base support 14 through a spring 13; as shown in fig. 3 and 4, the card slot 11 includes a bottom surface 114, a first side surface 111, a second side surface 112, and a third side surface 113, wherein an opening is disposed between the first side surface 111 and the third side surface 113, and the first side surface 111 and the third side surface 113 are further provided with a detecting device 18; the width of the bottom surface 114 is designed to be smaller than the width of the playing cards and larger than the thickness of all the playing cards to be arranged, meanwhile, two channels 1141 parallel to the width are arranged at intervals on the bottom surface 114, and the size of the channels 1141 is matched with one end of the push rod 17 close to the card slot 11; the aligning device 15 comprises a card-shifting brush 151 and a pushing inclined plate 152, the aligning device 15 is arranged above and on one side of the card slot 11, specifically, the card-shifting brush 151 is arranged between the card slot 11 and the card collecting channel 10, and the pushing inclined plate 152 is arranged at an opening between the first side surface 111 and the third side surface 113; a card collecting channel 10 is arranged above the card slot 11 and is shaped as an inverted vertex-removing quadrangular pyramid, a gap is reserved between the card collecting channel 10 and the card slot 11, the height of the reserved gap is higher than the thickness of the card shifting brush 151, and the card shifting brush 151 can move left and right in the gap; the card-shifting brush 151 is a soft brush, the width of the brush is larger than or equal to the width of the card slot 11, and the length of the brush is larger than or equal to the length of the card slot 11, so as to cover the top of the whole card slot 11, and ensure that all the playing cards in vertical or inclined postures can be completely swept into a posture with long and level sides when the card-shifting brush 151 moves left and right on the top of the card slot 11; selecting a soft brush to provide the best protection for the playing cards, wherein the soft brush needs to cover the upper part of the whole card slot to ensure that the long sides of all the playing cards are brushed to be level; the card collecting channel 10 is the card inlet 1, and disordered playing cards enter the card slot 11 through the card collecting channel 10; the first side surface 111 is an inclined surface, and an included angle formed between the first side surface and the bottom surface 114 is 30-85 degrees; the first side 111 of the card slot is provided as an inclined plane to cooperate with the card collecting channel to receive playing cards sliding into the card slot, reducing the clutter of playing cards during the sliding process, and forming an angle with the bottom surface, preferably 75 °. Each component of the card aligning mechanism is skillfully matched to realize the aligning work of the playing cards, wherein the core components are a card slot, an aligning device and a detection device.

More specifically, the flush tilt plate includes a first panel perpendicular to the bottom surface 114 and a second panel connected above the first panel and forming an angle of 95 ° to 175 ° with the first panel. The push-level sloping plate 152 enters the card slot 11 through the opening, and the short sides of the playing cards are pushed to be level by the back and forth movement of the push-level sloping plate 152 in the horizontal direction; meanwhile, the two panels of the push-in sloping plate 152 are designed into different angles to play different roles respectively, wherein the first panel is perpendicular to the bottom surface 114 of the card slot, and pushes the short side of the playing card to be flush through a 90-degree included angle formed with the bottom surface; the second panel of the push-in inclined plate and the first panel form an included angle larger than 90 degrees, so that certain space can be reserved for the playing cards which are not arranged and inclined, and the playing cards are prevented from being damaged.

More specifically, a top notch plate 12 is arranged below the card slot 11, the top notch plate 12 is connected with a base support 14 through a spring 13, and the top notch plate 12 is tightly attached to the bottom surface of the card slot 11 under the action of elastic force. Through the structure that design top notch board 12 and base support 14 are connected through spring 13, ingenious with above-mentioned bottom surface interval be provided with two passageways 1141 seal, avoid the cards in the card groove to drop, when card groove 11 overturns 90 simultaneously, top notch board 12 is pushed down with spring 13 simultaneously, exposes two passageways 1141 of bottom surface.

On the basis of the structure, the operation principle of the card aligning mechanism is as follows: the disordered playing cards slide into the card groove 11 from the card inlet 1, namely the card collecting channel 10, and the shape of the card collecting channel 10 is designed to be an inverted four-diamond table for removing the top, so that the playing cards can slide down orderly, and the disorder degree of the playing cards when being scratched into the card groove 11 is reduced; because the width of the bottom surface 114 of the card slot 11 is designed to be smaller than the width of the playing cards, the playing cards do not flatly spread in the card slot 11 after sliding into the card slot 11, but all stand in the card slot 11 on the side, wherein, some are in a vertical state, some are in an inclined state, and some are in a horizontal state; after the playing cards are collected, the control center sends a card aligning command to the aligning device 15, then a card shifting brush 151 in the card aligning device 15 moves left and right at the top of the card slot 11, and the playing cards in a vertical or inclined state are brushed into a horizontal state, so that the long sides of the playing cards are aligned; meanwhile, the aligning sloping plate 152 moves left and right on one side of the opening of the card slot 11, so that the short edges of the playing cards are aligned; the card-shifting brush 151 and the pushing sloping plate 152 move left and right alternately, that is, when the card-shifting brush 151 moves from left to right and then returns from right to left, the pushing sloping plate 152 starts to move from right to left and then returns from left to right, and then the card-shifting brush 151 and the pushing sloping plate 152 repeat the movement until the detection device 18 detects the passing; while the card-shifting brush 151 and the aligning sloping plate 152 work cooperatively, the detection devices arranged on the first side 111 and the third side 113 detect whether the playing cards are orderly arranged in real time according to a detection instruction of the control center, and return a detection result to the control center; when the detection result of the detection device is false, the card-shifting brush 151 and the aligning sloping plate 152 still need to continue to work, and when the detection result of the detection device is true, the card-shifting brush 151 and the aligning sloping plate 152 finish working, then the control center sends a turning instruction to the turning mechanism 115, and the turning mechanism 115 drives the card slot 11 to turn 90 degrees towards one side back to the push rod 17 according to the instruction; at this time, the card-poking brush 151 makes the long sides of the playing cards in the card slot 11 flat, the push-in sloping plate 152 makes the short sides of the playing cards in the card slot 11 flat, the playing cards in the card slot 11 are arranged into a side-standing neat stack, then the card slot 11 is turned 90 degrees to one side of the identification slot 21, the playing cards are turned into a flat and spread in the card slot 11 from the side-standing card slot 11, then the original top opening of the card slot 11 becomes a side opening facing one side of the identification slot 21, after the card slot 11 is turned 90 degrees to one side of the identification slot 21, the original bottom 114 is separated from the top notch plate 12 to become a side, two channels 1141 of the bottom 114 are exposed, the shape and size of the channels 1141 are designed to be matched with one end of the push rod 17 close to the card slot 11, then the control center sends a card-pushing instruction to the push rod 17, the push rod 17 pushes the playing cards in the card slot 11 into the card-face turning mechanism through, in particular to a visual identification area, namely an identification groove 21, of the card feeding surface turnover mechanism.

The card surface turnover mechanism comprises an identification groove 21, a visual identification device, a mechanical arm 25, a front box 22, a back box 23 and a box turnover mechanism 24; an opening is formed in one side, facing the card slot 11, of the recognition slot 21, the bottom of the recognition slot 21 and the bottom of the card slot 11 after being turned for 90 degrees are at the same height, and a gap between the bottom of the recognition slot 21 and the bottom of the card slot 11 is smaller than 1 cm; the recognition slot 21, the obverse box 22 and the reverse box 23 are arranged on a straight line, the mechanical arm 25 is arranged above the recognition slot 21, the obverse box 22 and the reverse box 23, the number of the mechanical arm is more than 2, and the mechanical arm is provided with a card sucking device; the visual recognition device can be fixed above the recognition groove 21 or arranged on the mechanical arm 25; the front box 22 is higher than the back box 23 and connected with the back box 23, the front box 22 can be turned 180 degrees to the upper part 23 of the back box, and the positions of the front box 22 and the back box 23 can be interchanged. Under the coordination of the components, the card surface turnover mechanism successfully realizes the front and back classification of the playing cards and the unification of the card surface orientations so as to finish the final work of the arrangement of the playing cards, wherein the core components are a visual identification device, a mechanical arm 25 and a box turnover mechanism 24.

More specifically, the identification groove comprises a long side surface and two short side surfaces, wherein two ends of the long side surface are respectively connected with the two short side surfaces, and the angles formed between the two short side surfaces are 90 degrees and 85 degrees to 175 degrees. The short sides of the identification slot correspond to the short sides of the playing cards in the slot, with one of the short sides being designed at an angle of 85 to 175 to the long side to allow some space for the playing cards to slide sideways when pushed into the identification slot.

The operation principle of the card surface turnover mechanism is as follows: the recognition groove 21 receives a stack of playing cards pushed by the push rod 17, the visual recognition device recognizes the front and back sides of the topmost playing card and sends the recognition result to the control center; the control center sends a command of reaching the front box or a command of reaching the back box to the mechanical arm 25 according to the recognition result, namely if the recognition result is true, the mechanical arm 25 grabs the playing cards to the back box 23, if the recognition result is false, the mechanical arm 25 grabs the playing cards to the front box 22, and a plurality of mechanical arms alternately grab and place the playing cards in tandem until all the playing cards in the recognition slot 21 are grabbed completely; then the control center sends an instruction to a box turning mechanism 24, the box turning mechanism 24 turns the front box 22 over 180 degrees and turns the front box upside down to the upside of the back box 23, so that the playing cards with the front side upwards in the front box are changed into the playing cards with the back side upwards and are superposed above the playing cards in the back box; the reverse box 23 is provided with a card pushing device, when the box turning mechanism 24 finishes working, the control center sends a card pushing instruction to the card pushing device in the reverse box 23, and the sorted playing cards are pushed out to the desktop from the reverse box 23 through the card outlet 2; the box turning mechanism 24 can be realized by a steering engine.

The card-poking brush 151, the push-aligning inclined plate 152, the push rod 17, the turnover mechanism 115, the mechanical arm 25 and the box turnover mechanism 24 are all matched with respective power mechanisms, and the power mechanisms complete respective operations under the instruction of a control center. Wherein one side of dialling tablet brush 151 is provided with the rack, and the tablet steering wheel is dialled in the cooperation of dialling tablet brush 151 power mechanism, and the rack of dialling tablet brush 151 inserts the tablet steering wheel of dialling, when dialling the tablet steering wheel and rotate, drives rack horizontal migration to the drive is dialled tablet brush 151 and is moved about. Wherein push away and neat swash plate 152 also be provided with the rack, push away and neat swash plate 152 and cooperate with the power mechanism and push away neat steering gear, push away neat swash plate 152's rack and insert and push away neat steering gear, when pushing away neat steering gear and rotating, drive rack horizontal migration to the drive pushes away neat swash plate 152 and removes about.

The utility model arranges the disordered playing cards into a stack of playing cards with the periphery aligned and the card surface facing to be uniform by designing the card arranging mechanism, the card surface overturning mechanism and the control center, so as to realize the arranging work of the playing cards; meanwhile, the poker card shifting tool made of soft materials is adopted to simulate the poker card shifting action of hands during shuffling, side-standing poker cards are shifted down to two ends to enable the long sides of the poker cards to be parallel and level, and then the short sides of the poker cards are pushed to be parallel and level, so that the scheme can well protect the poker cards, reduce the damage to the poker cards during shuffling and realize high-efficiency shuffling; meanwhile, a detection device is matched in the process of arranging the playing cards to simulate human eyes to monitor the arrangement result, and the next link is timely started after the arrangement is finished, so that redundant operation is avoided, and the efficiency of arranging the playing cards by the card arranging mechanism is further improved.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A playing card collator based on machine vision is characterized by comprising a card aligning mechanism, a card face turnover mechanism and a control center; the card aligning mechanism collects disordered playing cards, enables the collected playing cards to stand in the card aligning mechanism on the side, arranges the collected playing cards into a stack of playing cards with the periphery aligned, detects the arrangement result, and sends the playing cards passing the detection into the card surface turnover mechanism; the card surface turnover mechanism is used for carrying out front and back classification on the playing cards sorted by the card aligning mechanism and sorting all the playing cards into a stack of playing cards with uniform card surfaces; the card aligning mechanism and the card surface turnover mechanism complete the operation under the control of the control center.

2. A machine vision based playing card collator as claimed in claim 1, wherein said card alignment mechanism comprises a card collecting channel (10), a card slot (11), an alignment means (15), a push bar (17) and a detection means (18); the card collecting channel (10) is arranged above the card slot (11); the aligning device (15) is arranged above and at one side of the card slot (11); the detection device (18) is arranged on the card slot (11), detects the arrangement result of the playing cards and sends the detection result to the control center; the control center sends a card pushing instruction to the push rod (17) according to the received detection result, and the push rod (17) pushes the playing cards in the card slot (11) into the card surface turnover mechanism according to the received instruction.

3. A machine vision based playing card collator as claimed in claim 2, characterised in that the card slot (11) comprises a bottom (114), a first side (111), a second side (112) and a third side (113); the first side surface (111) is arranged to be an inclined surface, and an included angle formed between the first side surface and the bottom surface (114) is 30-85 degrees.

4. A machine vision based playing card collator as claimed in claim 3, wherein said aligning means (15) comprises a card-shifting brush (151) and a push-in ramp (152); an opening is formed between the first side surface (111) and the third side surface (113), and the push-and-align inclined plate (152) is arranged at the opening; the flush sloping plate (152) comprises a first panel and a second panel, the first panel is perpendicular to the bottom surface (114), the second panel is connected above the first panel, and an angle formed by the second panel and the first panel is 95-175 degrees; the push-level sloping plate (152) moves back and forth along the horizontal plane under the control of the control center.

5. A machine vision based playing card collator as claimed in claim 4, wherein said card-shifting brush (151) is a flexible brush having a width equal to or greater than the width of the card slot (11) and a length equal to or greater than the length of the card slot (11); it is in to dial tablet brush (151) setting collection tablet passageway (10) and tablet groove (11) between, it is in to dial tablet brush (151) round trip movement about tablet groove (11) top under control center's control, it is in to push away neat swash plate (152) follow under control center's control bottom surface (114) round trip movement about, dial tablet brush (151) and push away the round trip movement of neat swash plate (152) and crisscross going on, mutual conflict.

6. A machine vision based playing card collator according to any one of claims 3 to 5, wherein the bottom surface (114) is provided with two spaced channels (1141), the shape and size of the channels (1141) matching the shape and size of the end of the push rod (17) proximate the card slot (11); the card slot (11) is provided with a turnover mechanism (115), and the turnover mechanism (115) drives the card slot (11) to turn over 90 degrees towards one side back to the push rod (17), so that the channel (1141) is opposite to the push rod (17).

7. A machine vision based playing card collator as claimed in claim 6, characterised in that a top slot plate (12) is arranged below the card slot (11), the top slot plate (12) is connected with the base support (14) by a spring (13), the top slot plate (12) clings to the bottom surface (114) of the card slot (11) under the effect of spring force.

8. A machine vision based playing card collating machine according to any one of claims 1, 2, 3, 4, 5 and 7 wherein the card face turning mechanism includes an identification slot (21), a visual identification means, a robotic arm (25), a face box (22), a back box (23) and a turning mechanism (24); the identification groove (21), the front box (22) and the back box (23) are arranged on the same straight line, and the mechanical arm (25) is arranged above the identification groove (21), the front box (22) and the back box (23); the recognition groove (21) receives the playing cards pushed by the card aligning mechanism, the visual recognition device is arranged above the recognition groove (21), and the visual recognition device recognizes the front side and the back side of the topmost playing card and sends a recognition result to the control center; the control center sends a command of reaching the front box or a command of reaching the back box to a mechanical arm (25) which is about to grab the playing cards according to the received recognition result; the box turning mechanism (24) turns over the front box (22) or the back box (23) according to the instruction of the control center to obtain a stack of playing cards with the card faces facing to the same direction.

9. A machine vision based playing card collator as claimed in claim 8, characterised in that said identification slot (21) comprises a long side and two short sides, said long side being connected at both ends to the two short sides respectively at an angle of 90 ° and 85 ° to 175 °.

10. A machine vision based playing card collator as claimed in claim 8, wherein said flipping mechanism (24) is provided on the face box (22) or on the reverse box (23) and flips the face box (22) 180 ° over the reverse box (23) or flips the reverse box (23) 180 ° over the face box (22) according to the control center instructions.