[0025] figure 1 It is a schematic diagram of the structure of the present invention; as shown in the figure, the coin sorting and sorting system of this embodiment, the coin sorting and sorting system, includes a sorting module; the sorting module includes a coin entry device, a coin receiving drum 8 and a sorting tray; the The sorting tray includes a tray 4 and a toothed chuck 5 that are coaxially rotated and matched. The tray 4 is distributed with a plurality of sorting ports 18 with sizes increasing in sequence along the circumferential direction. Coins of a certain size are passed through to achieve sorting, and the tooth slots of the toothed chuck 5 can drive a single coin in the coin receiving drum 8 to pass through each sorting port 18 for sorting in sequence; a large number of mixed coins enter through the coin entry device. The toothed chuck 5 in the sorting tray is distributed with a plurality of tooth slots along the circumferential direction. The toothed chuck 5 is facing the outlet end of the coin receiving drum The coin-shaped chuck 5 can take away a single coin in the coin receiving drum 8 through the tooth slot when it rotates, and make it pass through the sorting port 18 arranged on the tray 4 in turn. The tray 4 of the present invention can be set in sequence with three different sizes The sorting ports 18 are respectively used to screen one-cent coins, five-cent coins and one-yuan coins. Meanwhile, in the present invention, multiple sorting ports 18 of each size can be set according to the size of the tray 4 to improve the sorting efficiency. The invention utilizes the characteristics of different coin diameters for sorting, which has the characteristics of high efficiency and high accuracy. In addition, the toothed chuck 5 can simultaneously drive multiple coins to pass through the sorting port 18 for sorting, which greatly improves the sorting efficiency.
[0026] In this embodiment, the coin entry device includes a centrifugal disc 3 that is rotatably arranged to allow a single coin to enter the coin receiving drum 8 intermittently; the centrifugal disc 3 includes a bottom plate and an inner block coaxially fixed on the top surface of the bottom plate. ring 15 and outer retaining ring 16; an annular channel 17 is formed between the inner retaining ring 15 and the outer retaining ring 16; the side wall of the inner retaining ring 15 is provided with a through hole for a coin to pass through, the outer retaining ring 16 There is a coin outlet, the coins in the inner retaining ring 15 can slide into the annular channel 17 through the through hole when the centrifugal disc 3 rotates, and enter the coin receiving cylinder 8 from the coin outlet. There can be two holes, and the two through holes are separated by a central angle of 180°. The mixed coins are scattered from the coin entry device into the inner retaining ring 15. When the bottom plate rotates, the coins can enter the annular channel 17 in a single and orderly arrangement under the action of centrifugal force. The coin outlet slides out, therefore, the coins can be conveyed to the coin receiving drum 8 along with the rotation of the tray 4, and are individually arranged in a stack for the sorting device to separate and sort the coins.
[0027] In this embodiment, the sorting module further includes a counterfeit coin outlet 7 that is arranged on the sorting tray and whose opening and closing are controllable, an eddy current sensor 6 for detecting the equivalent impedance of coins, and an eddy current sensor 6 for receiving signals collected by the eddy current sensor 6 And the controller that controls the opening and closing of the counterfeit coin outlet 7. During coin sorting, the toothed chuck 5 first drives the coin to pass through the eddy current sensor 6 and the counterfeit coin outlet 7, and then passes through each sorting port 18 in turn. Using the eddy current detection method, according to Faraday's law of electromagnetic induction, a coil with alternating current will generate an alternating magnetic field in the space around the coil. If the tested conductor is within this range, there will be an induced current in the metal conductor. Since the path of this current is closed in the metal conductor, an eddy current will be generated in the conductor, so the conductor under test will generate an eddy current and an alternating magnetic field, which is opposite to the direction, trying to weaken it, In this way, the inductance, impedance and quality factor of the coil can be changed; among them, when different coins pass through the probe of the eddy current sensor 6, their equivalent impedance will be different, so by comparing the impedance value in the database with the measured value. The difference is used to judge the authenticity of the tested coin. For this reason, the counterfeit sensor must first perform a "learning" task. The sensor collects the data of the real coin, converts it into a voltage signal through the conversion circuit, and then enters the DSP after AD conversion. The FFT algorithm is used to transform the signal into the frequency domain, and its frequency characteristics are preserved. When the sensor works normally, input the collected instantaneous information into the DSP processor, and compare and analyze it with the real coin data in the DSP database, so as to judge the authenticity of the tested coin. The movement of the electromagnet slider realizes the opening and closing of the counterfeit coin removal opening, and the action is fast and precise, and the counterfeit coin can be removed.
[0028] The coin sorting and sorting system of this embodiment further includes a sorting module; the sorting module includes a convergence rail for collecting coins of the same specification sorted out by the sorting port 18 and a counter for counting the collected coins. The main functions of the module are the aggregation of coins of the same type, the accurate counting of coins, the consolidation of coins, and the transport of quantitatively consolidated coins to the designated position. Based on the consideration of sorting efficiency, the sorting port 18 of the same size on the sorting tray can be opened with Multiple (two in this embodiment), coins are sorted on both sides of the sorting tray at the same time, and coins are collected on both sides at the same time. It is beneficial to the accurate counting of coins and save costs; at the same time, in order to ensure that the coins can slide down smoothly on the track, by calculating the friction force and downward gravity of the coins and simulation analysis, after the final optimization design, 1 yuan, 5 corners, and 1 corner are determined. The inclinations of the slideways are 40°, 45°, and 50° respectively. The converging track gathers coins of the same specification and then slides into the counting track. There is a photoelectric counter on the technical track. Because the laser beam switch has stable performance and response Due to the advantages of fast speed, little light interference, and long life, the photoelectric counter in this embodiment uses M12 laser light-emitting photoelectric counting switch sensor to count coins.
[0029]In this embodiment, the sorting mechanism further includes a coin collecting drum 9 arranged in a translational manner for forming a coin stack and moving the coin stack to the packaging module, and for conveying the coins collected by the collecting rail 19 to the collecting The reserve drum 21 of the coin drum 9, the coin collecting drum 9 and the reserve drum 21 are connected through the buffer drum 14; the outlet of the reserve drum 21 is provided with a coin baffle plate controlled by the controller to open and close, and the counted coins are passed through the reserve drum. 21 is transferred to the coin collecting drum 9, mainly when the coins in the coin collecting drum 9 reach the rated amount and the crank-slider mechanism 22 closes the channel of the coin collecting drum 9 to temporarily store the counted coins. When the signal is triggered, the sensor outputs a low level, and the DSP adds 1 to the number of the nixie tube after receiving the signal; when the number of counts reaches the set number, such as 50 times, the number of the nixie tube is cleared, and the processor sends a signal to drive the block. The coin plate closes the outlet of the preparation cylinder 21 to prepare for the next step of packaging, and the coins after that stay in the preparation cylinder 21. In this embodiment, a disc body 11 is provided under the coin collecting cylinder 9. The disc body 11 There is a track for guiding the movement of the coin collecting cylinder 9 along the radial direction, and a through hole is arranged in the center of the disc body 11. When the number of coins in the coin stack in the coin collecting cylinder 9 reaches the set value, it will move along the track to the disc. The center of the body 11 makes the stack of coins fall from the through hole for packaging.
[0030] In this embodiment, the packaging module includes an electromagnetic tray 23 for receiving the coins in the coin collecting drum 9, two fixed rollers 25 and one movable roller 24 for holding the stack of coins and driving them to rotate, and a The pick-up roller 12 for conveying the wrapping paper to the coin stack, the movable roller 24 can swing at a corresponding angle according to different types of coins, and forms a three-roller vertical packaging device with the other two vertical fixed rollers 25, and can clamp coins In addition, a fixed position paper pickup mechanism is used to introduce the wrapping paper into the three-roller vertical packaging device, and the movable roller 24 and the fixed roller 25 rotate under the drive of the rotary drive device, and guide the wrapping paper to wrap around the coin stack. At this time, the movement of the pickup mechanism is stopped, so as to break the wrapping paper of the special size.
[0031] In this embodiment, the packaging module further includes a retractable hemming roller 13 and an electric push rod for driving the hemming roller 13 to expand and contract. In this embodiment, the hemming roller 13 is also used as a fixed roller. When the vertical packaging device rotates at high speed to wrap the coin stack, the electric telescopic push rod drives the crochet mechanism to move up and down at a constant speed, and the coin stack wrapping paper is crocheted, so that the coin stack forms a coin roll.
[0032] In this embodiment, the coin stopper is driven to open and close by the crank-slider mechanism 22, and the coin collector 9 is driven to move by the rack and pinion mechanism 10. When the coins in the coin collector 9 reach a specified amount , the crank-slider mechanism 22 can drive the coin baffle to move, and play the role of closing the passage between the preparation cylinder 21 and the coin collecting cylinder 9, so as to prepare the quantitative and integrated coins in the coin collecting cylinder 8 to be transported to the designated position. At the same time, the gear The rack mechanism 10 transports the coin collecting drum 9 to move horizontally to the designated position, and then the electromagnet disc receives the quantitative coins in the coin drum 8 to the designated position for packaging, and then returns the coin collecting drum 9 to its original position through the rack and pinion. The crank-slider mechanism 22 is used to continuously open the channel between the coin collecting drum 9 and the preparation drum 21 to continue to collect coins. The operation of the rack and pinion mechanism 10 can realize the cyclic work of collecting, organizing and conveying coins.
[0033] In this embodiment, both the fixed roller 25 and the movable roller 24 are fixed with a feeding block for guiding the wrapping paper to wrap around the stack of coins. The feeding block is an arc-shaped plate, which can effectively guide the direction of the wrapping paper and ensure that the The wrapping paper is inserted exactly between the roller and the stack of coins.
[0034] In this embodiment, the coin feeding device includes a coin feeding funnel 1 and a conveyor belt 2 arranged below the coin feeding funnel 1 for conveying coins to the coin receiving drum 8. The coin collecting funnel has a large upper opening and a small lower opening. , the interior has a certain slope, so that the coins can fall on the conveyor belt 2 in an appropriate amount. According to the weight, material and other characteristic parameters of the coins, the optimized structural design slope is 45°; and the conveyor belt can make the coins enter the centrifugal force evenly and quantitatively disc 3 to prevent a large amount of coins from accumulating in the centrifugal disc 3 and causing the load to be too large, causing the motor to stall and burn out.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.
