CN204759563U - Paper currency coin system of making change for bus - Google Patents

Abstract

Banknote coin change system for buses, including coin box, key module, liquid crystal display, controller, banknote change device, coin change device and sorting device for separating banknotes and coins, key module, liquid crystal display Both the screen and the controller are arranged outside the coin box, and the button module and the LCD screen are respectively connected to the controller. They are respectively arranged on both sides of the sorting device; the utility model can realize the sorting of the coins put in and automatic change.

Description

Banknote coin change system for buses

technical field

The utility model relates to a change system, in particular to a banknote and coin change system for buses.

Background technique

Most of the existing buses use unmanned ticket sales and implement a unified fare, but there is no automatic change function. Passengers need to bring their own change or boarding card. Traveling is inconvenient. Now there are many automatic change services on the market, such as vending machines. Their change is classified into categories in advance and put in manually. However, the money in the coin machine on the bus is put in by customers. How to divide the change into categories? is the key to design.

Utility model content

The content of the utility model is to provide a banknote and coin change system for buses, which can realize the classification of the coins put in and automatic change.

The technical solution adopted by the utility model is: a banknote and coin change system for buses, including a coin box, a button module, a liquid crystal display, a controller, a banknote change device, a coin change device and a system for separating banknotes and coins. The sorting device, the key module, LCD screen and controller are all set outside the coin box, and the key module and LCD screen are connected to the controller respectively, and the sorting device is correspondingly set under the coin slot of the coin box , the banknote change device and the coin change device are located on both sides of the sorting device;

The banknote change device includes a banknote pre-storage box connected to the end of the sorting device, a screw nut transmission unit, a banknote sorter, a banknote validator, banknote boxes for holding different denominations of banknotes, and banknote boxes one by one. Corresponding to the banknote change mechanism, the banknote pre-storage box and the banknote sorter are respectively connected to the screw nut transmission unit, and the banknote sorter is arranged above the banknote pre-storage box, and the banknote pre-storage box is sorted by the receiving and sorting mechanism. After the banknotes are out, according to the denomination information recognized by the banknote validator, the banknote pre-storage box is driven by the screw nut transmission unit to reciprocate between the banknote boxes containing different denomination banknotes, so as to pick the corresponding denomination banknotes to the corresponding Banknote box; the banknote change mechanism includes a motor I connected to the controller, a worm connected to the output end of the motor I, a worm gear meshed with the worm, a lead screw I fixed on the worm wheel and rotating with the worm gear, sleeved on the wire The nut I on the lever I, the nut anti-rotation rod passing through the nut I and used to prevent the rotation of the nut I, the dial mechanism connected to the end of the nut I and the banknote roll connected to the banknote box, when change is required, press the button module, the denomination information received by the controller controls the corresponding motor I to start, and then drives the dial mechanism to send the corresponding banknotes into the banknote drum for output;

The described coin changing device comprises a conveying pipeline, a coin conveying belt, a vertical cylinder and three coin cylinders respectively used to hold a dime, a five-cent coin, and a one-yuan coin, which are successively installed from the beginning to the end. The vertical cylinder and the coin There is a coin clamping mechanism between the tubes, and a screw nut transmission mechanism for driving the coin clamping mechanism to translate, and a double cam mechanism I and a coin validator are provided on one side of the lower end of the vertical tube, and three coins One side of the lower end of the barrel is respectively provided with a double cam mechanism II; wherein, both the double cam mechanism I and the double cam mechanism II are composed of two coaxially rotating cams IV and two horizontal pushers respectively corresponding to the cams IV. Composed of rods, the two cams IV in the same double-cam mechanism move forward and backward, so that the two horizontal push rods in the same double-cam mechanism move oppositely, one moves left and the other moves right, realizing two coaxially rotating cams IV After one rotation, a coin falls out of the constraint of the horizontal push rod; the controller controls the lead screw nut transmission mechanism to drive the coin clamping mechanism to move above the corresponding coin cylinder according to the denomination information of the coin detected by the coin validator, and the coin clamp The picking mechanism sends the picked coins into the coin barrel, and the corresponding double cam mechanism below the coin barrel sends the coins in the coin barrel to the coin outlet of the coin box.

The system also includes rollers, a closed-loop conveyor belt obliquely arranged in the coin box, and a motor for driving the closed-loop conveyor belt and the rollers. The closed-loop conveyor belt consists of two pulleys and is sleeved on the two pulleys. Composed of belts, a movement channel for coins is formed between the closed-loop conveyor belt and the rollers. The upper end of the movement channel is connected to the coin inlet of the coin box, and the lower end of the movement channel is connected to the sorting device.

The sorting device is composed of multiple horizontal rods, one end of the horizontal rod is fixed on the inner wall of the coin box, and the other end is a free end, the minimum horizontal distance between the horizontal rods is greater than the diameter of a one-yuan coin and less than the width of a dime banknote, And the length of each horizontal bar is not equal, makes the free end of horizontal bar form the lower inclined plane for banknote movement, the opening of banknote box is correspondingly arranged with the end of this lower inclined plane, and conveying pipeline is correspondingly located at the below of horizontal bar.

The screw and nut transmission unit includes a motor II fixed on the bottom of the coin box, a lead screw II connected to the output end of the motor II, and a nut II set on the lead screw II. The picker is fixed on the nut II.

One end of the banknote pre-storage box is hinged to the nut II, and the other end is provided with a baffle, and the bottom of the banknote pre-storage box is also provided with a cam II connected to the nut II, and the cam II is connected with a screw that can drive it to rotate toward the baffle plate. When the motor and cam II rotate, they can drive the banknote pre-storage box to move synchronously, so that the banknotes in the banknote storage box are aligned along the direction of the baffle.

Both the banknote sorter and the dial mechanism include a rubber wheel, a motor that drives the rubber wheel to rotate, and a plurality of gear teeth that are arranged on the rubber wheel and are used to toggle the banknotes. The gear teeth are fixed on the outer peripheral surface of the rubber wheel The connecting block and the oblique block connected with the connecting block arc transition, the oblique block corresponds to the end of the banknote pre-storage box, and the angle formed by the connecting block and the oblique block deviates from the rotation direction of the rubber wheel.

The inside of each banknote box is provided with a coin storage tube, one end of the banknote storage tube is connected to the banknote pre-storage box, and the other end is connected to the banknote roll. The bottom is connected with a compression spring and a hinge, and the length and width directions of the coin storage cylinder are respectively provided with a cam I that pushes the coin storage cylinder to move up and down. The cam I is driven by a motor connected to the control system.

The bottom of the coin storage tube is composed of two mutually hinged support plates, so that when change is made, the bottom of the coin storage tube forms an angle with an opening upward, so as to facilitate the delivery of banknotes into the banknote reel. There is a movable push plate on the length direction of the cylinder, the movable push plate is connected with the cam III through the push rod, the cam III is driven by the motor, when the cam III rotates, the movable push plate moves along the width direction of the coin storage cylinder to push the banknotes to be arranged tidy.

The banknote reel is a conveyor belt, the side wall of the coin box is provided with a coin outlet corresponding to the end of the banknote reel, and the outer wall of the coin box is provided with a change box for receiving change banknotes.

The coin clamping mechanism includes a rotating wheel, a cam V which is arranged inside the rotating wheel and rotates coaxially with it, and a fork-shaped member for clamping coins. The ┤-shaped rod and the push rod driven by the cam are composed. The rotating wheel is provided with a through hole that allows the push rod to protrude from the outer peripheral surface of the rotating wheel. Rotates and, during the movement, transfers the coins to the corresponding coin cylinders.

The beneficial effects of the utility model:

1. The utility model is equipped with a coin change device and a banknote change device, sorting the coins put in by the bus passengers, separating the banknotes and coins, and then placing the banknotes and coins in different categories. On the one hand, it is convenient for the bus driver to count and reduce work. On the other hand, the coin change device and the banknote change device are used for the automatic change of coins and banknotes respectively, which brings convenience for people to travel.

2. The utility model is provided with a sorting device for separating banknotes and coins. The device is equipped with a horizontal bar at the lower end of the coin slot. The minimum horizontal distance between the horizontal bars is greater than the diameter of a one-yuan coin and less than the width of a dime banknote. Therefore, the coin will not be disturbed when it falls, and the coin will fall into the coin change device below; since the minimum horizontal distance between the horizontal bars is less than the width of a dime banknote, the banknote will slide to the banknote pre-storage box below along the downward slope of the free end of the thimble In the process, banknotes and coins are placed separately.

3. After the banknotes and coins are separated in the utility model, the banknotes in the banknote pre-storage box are sent into the corresponding coin storage cylinder through the sorting mechanism. When change is required, press the button module, and the control system will change the banknotes according to the need Start the dial mechanism above the corresponding coin storage cylinder, the motor above drives the dial mechanism down, and at the same time push the cam Ⅰ close to the banknote reel to rotate an angle, so that the coin storage cylinder is raised by an angle, and the coins are conveniently withdrawn.

4. The purpose of the coin screening mechanism is to separate coins of different denominations for change. The coins move to the coin conveyor belt through the guide plate and the baffle in turn, and the baffle allows the coins to pass through the channel one by one. During the coin conveying process, the coin validator transmits the face value information of the coin to the coin sorter, and the coin sorting The five-cent coin, one-cent coin and one-yuan coin are transported to the five-cent coin case, one-cent coin case and one-yuan coin case respectively by the device.

5. In the coin change mechanism, the side of the coin conveying tube and the coin output cylinder are equipped with a double cam mechanism. The same double cam mechanism simultaneously pushes two horizontal push rods, so that the upper and lower horizontal push rods move oppositely, and one moves to the left. The other moves to the right, so that the coins fall one by one; the falling coins in the coin delivery tube enter the fork-shaped member, and with the rotation of the cam and the rotating wheel, the coins change from a vertical state to a horizontal state with the fork-shaped member, during this process , the push rod of the cam moves to the right, and the coins fall into the coin output cylinder; the double cam mechanism at the lower end of the coin output cylinder, according to the change information input from the outside, the double cam mechanism pushes two horizontal push rods at the same time, so that the upper and lower two horizontal push rods One of the levers moves left and the other moves right, so that the cam rotates one circle and a coin falls to achieve change.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the left side view of removing roller among Fig. 1;

Fig. 3 is the right side view after removing the spring adjustment roller and three coin cylinders in Fig. 1;

Figure 4 is a supplementary view of Figure 3;

Fig. 5 is a schematic diagram of a coin clamping mechanism;

Fig. 6 is a sectional view along B-B among Fig. 1;

Fig. 7 is a structural schematic diagram of the paper currency change device;

Fig. 8 is the right side view of Fig. 7;

Fig. 9 is a sectional view along F-F of Fig. 7;

Fig. 10 is a sectional view along D-D of Fig. 7;

Fig. 11 is a schematic structural view of the banknote sorter;

Marks in the figure: 1. Coin box, 2. Controller, 3. Banknote change device, 4. Coin change device, 5. Sorting device, 6. Roller, 7. Closed-loop conveyor belt, 31. Banknote pre-storage box, 32. Lead screw nut transmission unit, 33. Banknote sorter, 34. Banknote validator, 35. Banknote box, 36. Banknote change mechanism, 50. Horizontal rod, 41. Coin conveyor belt, 42. Vertical cylinder, 43 , coin cylinder, 44, coin clamping mechanism, 45, coin validator, 46, double cam mechanism Ⅰ, 47, double cam mechanism Ⅱ, 311, bezel, 312, cam Ⅱ, 321, motor Ⅱ, 322, lead screw Ⅱ, 323, nut Ⅱ, 331, rubber wheel, 332, gear teeth, 3321, connection block, 3322, oblique block, 351, coin storage tube, 352, compression spring, 353, cam Ⅰ, 354, movable push plate, 355, push rod, 356, cam III, 357, support plate, 361, motor I, 362, worm, 363, turbine, 364, lead screw I, 365, nut I, 366, dial mechanism, 367, banknote reel , 368, change box, 369, nut anti-rotation rod, 441, rotating wheel, 442, fork-shaped member, 443, ┤-shaped rod, 444, push rod, 445, through hole, 446, cam Ⅴ, 461, cam Ⅳ , 462, horizontal putter.

Detailed ways

As shown in the figure, the banknote coin change system for buses includes a coin box 1, a button module, a liquid crystal display, a controller 2, a banknote change device 3, a coin change device 4 and a mechanism for separating banknotes and coins. Sorting device 5, button module, liquid crystal display and controller 2 are all arranged on the outside of coin box 1, and button module and liquid crystal display are connected with controller 2 respectively, and sorting device 5 is correspondingly located at coin box 1 Below the coin slot, the banknote change device 3 and the coin change device 4 are located on both sides of the sorting device 5;

The banknote change device 3 includes a banknote pre-storage box 31 connected to the end of the sorting device 5, a screw nut transmission unit 32, a banknote sorter 33, a banknote validator 34, and banknote boxes for holding banknotes of different denominations. 35 and the banknote change mechanism 36 that is arranged in one-to-one correspondence with the banknote box 35, the banknote pre-storage box 31 and the banknote sorter 33 are respectively connected to the lead screw nut drive unit 32, and the banknote sorter 33 is arranged on the banknote pre-storage Above the box 31, after receiving the banknotes picked out by the sorting mechanism 5, the banknote pre-storage box 31 is driven by the lead screw and nut drive unit 32 to hold different denominations according to the denomination information identified by the banknote validator 33. The banknote box 35 of the banknote reciprocates, so that the banknote of the corresponding denomination is picked up to the corresponding banknote box 35 by the banknote sorter 33; The worm 362 connected to the output end, the worm gear 363 meshed with the worm gear 362, the lead screw I364 fixed on the worm gear 363 and rotating with the turbine 363, the nut I365 sleeved on the lead screw I364, passing through the nut I365 and used to prevent the nut I365 The rotating nut anti-rotation rod 369, the dial mechanism 366 connected to the end of the nut I365, and the banknote reel 367 connected to the banknote box 35, when change is required, press the button module, and the denomination information received by the controller controls the corresponding motor I361 Start, and then drive the dial mechanism 366 to send the corresponding banknotes into the banknote reel 367 for output;

The described coin changing device 4 comprises a conveying pipeline 40, a coin conveying belt 41, a vertical cylinder 42, and three coin cylinders 43 respectively used to hold a dime, a five-cent coin and a one-yuan coin, which are successively arranged from the beginning to the end. A coin clamping mechanism 44 is provided between the vertical cylinder 42 and the coin cylinder 43, and a screw nut transmission mechanism for driving the translation of the coin clamping mechanism 44 is also included, and a side of the vertical cylinder 42 lower end is provided with a double cam mechanism I46 and a coin validator 45, one side of the lower ends of the three coin cylinders 43 are respectively provided with a double cam mechanism II47; wherein, the double cam mechanism I46 and the double cam mechanism II47 are both composed of two coaxially rotating cams IV461 and two horizontal push rods 462 respectively corresponding to the cams IV. The two cams IV in the same double-cam mechanism move forward and back, so that the two horizontal push rods in the same double-cam mechanism move oppositely, and one moves to the left. One moves to the right, realizing that two coaxially rotating cams IV rotate one circle, and a coin falls away from the constraint of the horizontal push rod; the controller 2 controls the screw nut transmission mechanism to drive the coin according to the face value information of the coin detected by the coin validator 45 The coin clamping mechanism 44 translates to the top of the corresponding coin cylinder 43, and the coin clamping mechanism 44 sends the coin clamped into the coin cylinder 43, and the corresponding double cam mechanism below the coin cylinder 43 sends the coin in the coin cylinder 43 Go to the coin outlet of coin box 1.

The system also includes a roller 6, a closed-loop conveyor belt 7 obliquely arranged in the coin box 1, and a motor for driving the closed-loop conveyor belt 7 and the roller 6. The closed-loop conveyor belt 7 is composed of two pulleys and a sleeve Composed of belts on two pulleys, a movement channel for coins is formed between the closed-loop conveyor belt 7 and the rollers 6. Select device 5 correspondingly to undertake setting.

Described sorting device 5 is made up of many horizontal rods 50, and one end of horizontal rod 50 is fixed on the inner wall of coin box 1, and the other end is a free end, and the minimum horizontal distance between horizontal rods 50 is greater than the diameter of one yuan coin and less than The width of a dime banknote, and the length of each horizontal rod is not equal, so that the free end of the horizontal rod forms a lower slope for the movement of the banknote, the opening of the banknote box is correspondingly arranged with the end of the lower slope, and the conveying pipeline 40 is correspondingly arranged on the horizontal rod Below 50.

The screw nut transmission unit 32 includes a motor II 321 fixed at the bottom of the coin box 1, a screw II 322 connected to the output end of the motor II 321, and a nut II 323 sleeved on the screw II 322; the banknote pre-storage box One end of 31 is hinged with nut II 323, and the other end is provided with a baffle 311, and the bottom of banknote pre-storage box 31 is also provided with a cam II 312 connected with nut II 323, and the cam II 312 is connected with a motor that can drive it to rotate toward the baffle 311. When the cam II 312 rotates, it can drive the banknote storage box 31 to move synchronously, so that the banknotes in the banknote storage box 31 are aligned along the direction of the baffle plate 311 .

The banknote sorter 33 and the dial mechanism 366 both include a rubber wheel 331, a motor that drives the rubber wheel 331 to rotate, and a plurality of gear teeth 332 that are arranged on the rubber wheel 331 and are used to toggle the banknotes. The gear teeth 332 are formed by The connecting block 3321 fixed on the outer peripheral surface of the rubber wheel 331 and the oblique block 3322 connected with the connecting block 3321 in a circular arc transition are composed. The included angle deviates from the rotation direction of the rubber wheel 331.

The inside of each banknote box 35 is provided with a coin storage cylinder 351, one end of the currency storage cylinder 351 is connected to the banknote pre-storage box 31, and the other end is connected to the banknote reel 367, and the two ends of the bottom of the currency storage cylinder 351 A compression spring 352 and a hinge connected to the bottom of the banknote box 35 are provided respectively, and a cam I 353 for pushing the coin storage tube 351 to move up and down is respectively provided on the length and width directions of the coin storage tube 351. The motor drives the transmission.

The bottom of the coin storage tube 351 is composed of two mutually hinged support plates 357, so that when change is made, the bottom of the coin storage tube 351 forms an angle with an upward opening, so that the banknotes can be transported to the banknote reel 367 conveniently. A movable push plate 354 is also provided in the length direction of the coin storage tube 351, and the movable push plate 354 is connected with a cam III 356 through a push rod 355, and the cam III 356 is driven by a motor. The barrel 351 moves in the width direction to push the banknotes into alignment.

The banknote reel 367 is a conveyor belt, and the side wall of the coin box 1 is provided with a coin outlet corresponding to the end of the banknote reel 367, and the outer wall of the coin box 1 is provided with a change box 8 for receiving change banknotes .

The coin clamping mechanism 44 includes a rotating wheel 441, a cam V 446 which is arranged inside the rotating wheel 441 and rotates coaxially with it, and a fork-shaped member 442 for clamping coins. The fork-shaped member 442 is arranged on a rotating The ┤-shaped rod 443 on the outer peripheral surface of the wheel 441 and the push rod 444 promoted by the cam are formed. The rotating wheel 441 is provided with a through hole 445 that can make the push rod stretch out from the outer peripheral surface of the rotating wheel 441. After the fork-shaped member 442 is clamped, the fork-shaped member 442 rotates with the rotating wheel 441 and transports the coins into the corresponding coin cylinder 43 during the movement.

Further, the system also includes an inverted cone arranged at the entrance of the coin box 1 and a limiting frame arranged on the inner wall of the coin box 1. It is connected with the inner wall of the coin box, the driving shaft of the roller motor is connected with the rotating shaft through a universal coupling, and the ultimate stretching length of the spring enables a single coin to pass through the gap between the roller and the closed-loop conveyor belt.

Working principle of the utility model:

1. When a passenger puts coins into the coin box, the controller controls the roller motor and the motor of the closed-loop conveyor belt to work according to the coin-input signal of the detection device. The roller and the closed-loop conveyor belt move in opposite directions to roll the coins into the coin box. Considering that sometimes passengers will insert multiple banknotes or multiple coins at a time to cause congestion, the rotating shaft of the roller is connected to the inner wall of the coin box through a spring, so that the roller can move within the limit frame under the force along its radial direction. Do reciprocating motion, if more coins are put in, the roller can move away from the closed-loop conveyor belt along the limit frame, and after the coins pass through smoothly, the roller returns to its original position under the action of the spring.

2. The utility model is provided with a sorting device for separating banknotes and coins. The mechanism is provided with a horizontal bar at the lower end of the coin slot. The minimum horizontal distance between the horizontal bars is greater than the diameter of a one-yuan coin and less than the width of a dime banknote. Therefore, the coin will not be disturbed when it falls, and the coin will fall into the coin change device below; since the minimum horizontal distance between the thimbles is less than the width of a dime banknote, the banknote will slide along the downward slope of the free end of the thimble into the banknote pre-storage box below , to separate banknotes and coins.

3. Banknote change: When the coin insertion is over, the cam under the banknote pre-storage box rotates, making the banknote storage box vibrate around the hinge connected with the nut, and the banknotes are aligned along the baffle. After a period of time after no one inserts coins and the car starts, the system starts to prepare to sort the banknotes in the banknote pre-storage box into the corresponding banknote boxes, and the upper banknote validator starts to detect the denomination of the top banknote, and then the controller controls The banknote pre-storage box moves to the corresponding position along the screw, and then the banknote sorter dials the topmost banknote into the corresponding box. And the system accumulates the currency value, and the overall data can be called out through the query button on the control panel, and displayed on the LCD screen; after the coin is released, the rotation of the cam Ⅰ and cam Ⅲ drives the movement of the coin storage cylinder so that the currency storage cylinder The banknotes are arranged neatly along the direction of the banknote roll, which is convenient for changing later.

4. Coin change: After the coin is inserted, the coin will leak into the conveying pipe vertically and slide down the pipe; there is a double cam device at the outlet of the lower end of the pipe to hold the coin and prevent it from falling. Turning an angle, a coin below will fall, and the upper cam turns left so that the horizontal rod supports the remaining coin above, and the falling coin falls into the fork-shaped member fixed on the rotating wheel, and the coin validator at the entrance and exit detects it The size of the coin at the bottom, the rotating wheel can rotate with the motor, the cam is fixed on the working frame and can move along with the rotating wheel and the nut, one end of the push rod can move along the slideway on the edge of the cam, and one end of the ┤-shaped rod is fixed on the Turn on the wheel. When the fork-shaped member of the rotating wheel turns to the top, the push rod stretches out to catch the coins. When it is turned to the horizontal, the push rod moves along the edge of the cam, so that the push rod retracts, and the coins fall to the corresponding denomination information in the coin cylinder.

Among them, the three coin cylinders as shown in the figure are dime coin cylinders, one-yuan coin cylinders and five-cent coin cylinders from left to right. The transmission device does not move, and the fork-shaped member of the rotating wheel clamps the one-yuan coin into the middle one-yuan coin cylinder; if a five-cent coin is detected, the motor drives the lead screw to rotate, and the coin clamping device moves along with the nut to the top of the five-cent coin cylinder , the motor drives the rotating wheel to rotate counterclockwise 90°, the coins fall into the coin storage cylinder, the motor rotates 90° clockwise, the fork member returns to the top, and then the motor in the screw nut transmission device reverses to drive the coin holder The fetching device returns to the position of the coin outlet in the middle, ready to receive the next coin; if the detected coin is a dime, the coin clamping process is the same as above. Because there is a double cam device below each coin cylinder, it has the same effect as the double cam device above, and coins can be dialed into the coin cylinder one by one for change.

Claims (9)

1. The banknote coin change system for buses is characterized in that it includes a coin box (1), a button module, a liquid crystal display, a controller (2), a banknote change device (3), and a coin change device (4 ) and a sorting device (5) for separating banknotes and coins, the button module, LCD screen and controller (2) are all arranged outside the coin box (1), and the button module and LCD screen are respectively connected with the control The device (2) is connected, and the sorting device (5) is correspondingly installed under the coin slot of the coin box (1), and the banknote change device (3) and the coin change device (4) are respectively installed in the sorting device (5) both sides of The banknote change device (3) includes a banknote pre-storage box (31) connected to the end of the sorting device (5), a screw nut transmission unit (32), a banknote sorter (33), a banknote validator (34 ), a banknote box (35) for holding banknotes of different denominations, and a banknote change mechanism (36) corresponding to the banknote box (35), the banknote pre-storage box (31) and the banknote sorter (33 ) are respectively connected with the lead screw nut transmission unit (32), and the banknote sorter (33) is arranged above the banknote pre-storage box (31), and the banknote pre-storage box (31) is picked out by the receiving and sorting mechanism (5). After the banknotes, according to the denomination information recognized by the banknote validator (33), the banknote pre-storage box (31) is driven by the screw nut drive unit (32) to reciprocate between the banknote boxes (35) containing banknotes of different denominations, Banknotes of corresponding denominations are sorted to corresponding banknote boxes (35) through the banknote sorter (33); the banknote change mechanism (36) includes a motor I (361) connected to the controller (2), and a motor The worm (362) connected to the output end of I (361), the worm (363) meshing with the worm (362), the lead screw I (364) fixed on the worm (363) and rotating with the worm (363), sleeved on Nut I (365) on screw I (364), nut anti-rotation rod (369) passing through nut I (365) and used to prevent nut I (365) from rotating, dial wheel mechanism connected to the end of nut I (365) (366) and the banknote reel (367) connected with the banknote box (35), when change is required, press the button module, the denomination information received by the controller controls the corresponding motor I (361) to start, and then drives the dial mechanism (366) send corresponding banknote into banknote reel (367) output; The coin changing device (4) includes a conveying pipeline (40), a coin conveying belt (41), a vertical cylinder (42) arranged successively from the beginning to the end, and a container for holding dime coins, 50-cent coins and one-yuan coins respectively. Three coin cylinders (43), a coin clamping mechanism (44) is provided between the vertical cylinder (42) and the coin cylinder (43), and a lead screw for driving the coin clamping mechanism (44) to translate A nut drive mechanism, and one side of the lower end of the vertical cylinder (42) is provided with a double cam mechanism I (46) and a coin validator (45), and one side of the lower end of the three coin cylinders (43) is respectively provided with a double cam Mechanism II (47); wherein, both the double-cam mechanism I (46) and the double-cam mechanism II (47) are composed of two coaxially rotating cams IV (461) and two levels corresponding to each cam IV. Composed of push rods (462), the two cams IV in the same double-cam mechanism move forward and back, so that the two horizontal push rods in the same double-cam mechanism move oppositely, one moves left and the other moves right, realizing two coaxial The rotating cam IV rotates one circle, and a coin falls away from the constraint of the horizontal push rod; the controller (2) controls the screw nut transmission mechanism to drive the coin clamping mechanism ( 44) Translate to the top of the corresponding coin cylinder (43), and the coin clamping mechanism (44) will send the clamped coin into the coin cylinder (43), and the corresponding double cam mechanism below the coin cylinder (43) will place the coin cylinder Coins in (43) are delivered to the coin outlet of coin box (1). 2. The banknote coin change system for buses as claimed in claim 1, characterized in that: the system also includes rollers (6), a closed-loop conveyor belt (7) obliquely arranged in the coin box (1), and The motor that drives the movement of the closed-loop conveyor belt (7) and the rollers (6), the closed-loop conveyor belt (7) is composed of two pulleys and a belt sleeved on the two pulleys, the closed-loop conveyor belt (7) A movement passage for coins is formed between the roller (6), the upper end of the movement passage is arranged correspondingly to the coin input of the coin box (1), and the lower end of the movement passage is arranged correspondingly to the sorting device (5). 3. The banknote coin change system for buses according to claim 1, characterized in that: the sorting device (5) is composed of a plurality of horizontal rods (50), one end of the horizontal rods (50) is fixed on the On the inner wall of the coin box (1), the other end is a free end, the minimum horizontal spacing between the horizontal rods (50) is greater than the diameter of a yuan coin and less than the width of a dime banknote, and the lengths of each horizontal rod are not equal, so that the horizontal rods The free end forms a lower slope for banknotes to move, the opening of the banknote box is arranged correspondingly to the end of the lower slope, and the conveying pipe (40) is correspondingly arranged below the horizontal bar (50). 4. The banknote coin change system for buses according to claim 1, characterized in that: the screw nut transmission unit (32) includes a motor II (321) fixed at the bottom of the coin box (1), and The lead screw II (322) connected to the output end of the motor II (321) and the nut II (323) sleeved on the lead screw II (322); one end of the banknote pre-storage box (31) and the nut II (323) Hinged, the other end is provided with a baffle (311), and the bottom of the banknote pre-storage box (31) is also provided with a cam II (312) connected to the nut II (323). The motor that rotates in the direction of the plate (311) and the cam II (312) can drive the banknote storage box (31) to move synchronously when the cam II (312) rotates, so that the banknotes in the banknote storage box (31) are aligned along the direction of the baffle (311). 5. The banknote coin change system for buses according to claim 1, characterized in that: the banknote sorter (33) and the dial mechanism (366) both include rubber wheels (331), drive rubber wheels ( 331) the rotating motor and a plurality of gear teeth (332) arranged on the rubber wheel (331) and used to move banknotes, the gear teeth (332) are fixed on the outer peripheral surface of the rubber wheel (331) 3321) and an oblique block (3322) connected with the connecting block (3321) in an arc transition, the oblique block (3322) corresponds to the end of the banknote pre-storage box (31), the connecting block (3321) and the oblique block (3322 ) forms an angle away from the rotation direction of the rubber wheel (331). 6. The banknote coin change system for buses according to claim 1, characterized in that: each banknote box (35) is provided with a coin storage tube (351) inside, and the coin storage tube (351) One end of the banknote pre-storage box (31) is accepted, and the other end is accepted by the banknote roll (367). The two ends of the bottom of the banknote storage tube (351) are respectively provided with compression springs (352) connected to the bottom of the banknote box (35). ) and hinges, and the length and width directions of the coin storage tube (351) are respectively equipped with a cam I (353) that pushes the coin storage tube (351) to move up and down, and the cam I (353) is driven by a motor connected to the control system transmission. 7. The banknote and coin change system for buses according to claim 6, characterized in that: the bottom of the coin storage tube (351) is composed of two mutually hinged support plates (357), so that when making change, The bottom of the coin storage tube (351) forms an angle with an opening upwards to facilitate the transfer of banknotes into the banknote roll (367), and a movable push plate (354) is also provided in the length direction of the coin storage tube (351) , the movable push plate (354) is connected with the cam III (356) through the push rod (355), the cam III (356) is driven by the motor, when the cam III (356) rotates, the movable push plate (354) moves (351) to move in the width direction to push banknotes to line up neatly. 8. The banknote coin change system for buses according to claim 6, characterized in that: the banknote reel (367) is a conveyor belt, and the side wall of the coin box (1) is provided with a banknote reel ( 367) The end corresponds to the coin outlet, and the outer wall of the coin box (1) is provided with a change box (8) for receiving change notes. 9. The banknote and coin change system for buses according to claim 1, characterized in that: the coin clamping mechanism (44) includes a rotating wheel (441), which is arranged inside the rotating wheel (441) and The shaft rotates the cam V (446) and the fork-shaped member (442) for clamping coins. The fork-shaped member (442) consists of a ┤-shaped rod (443) and a Composed of a push rod (444) driven by a cam, the rotating wheel (441) is provided with a through hole (445) that allows the push rod to protrude from the outer peripheral surface of the rotating wheel (441), and the coins falling in the vertical tube (42) are forked After the fork-shaped member (442) is clamped, the fork-shaped member (442) rotates with the rotating wheel (441), and transports the coins to the corresponding coin cylinder (43) during the movement.