A coin queue conveying, detection, and sorting system

Abstract

This invention provides a coin queue conveying, detection, and sorting system, including an infeed queue conveyor with a directional flipping section for conveying coins and adjusting them so that both sides face up before conveying them to a double-glass turntable conveyor section. The double-glass turntable conveyor section separately conveys and identifies both sides of the coins, separating normal coins from damaged coins before conveying them to an outfeed sorting conveyor section. The outfeed sorting conveyor section includes a normal coin conveyor belt and a damaged coin conveyor belt, respectively conveying normal coins and damaged coins to coin collection positions. A bottom frame supports the infeed queue conveyor with a directional flipping section, the double-glass turntable conveyor section, and the outfeed sorting conveyor section. This invention performs queue conveying, obverse / reverse orientation detection, and obverse surface quality detection and sorting of coins. The double-glass turntable conveyor section identifies and sorts both sides of the coins during the detection, transmission, or flipping process, achieving high-precision, high-quality, and high-standard detection.

Description

Technical Field

[0001] This invention relates to the field of automatic coin detection equipment, and in particular to a coin queue conveying, detection and sorting system. Background Technology

[0002] Existing automatic coin detection devices generally use a separate method to detect the obverse and reverse sides, which results in low efficiency, large external dimensions, and often requires a complex flipping mechanism, making them prone to malfunction. To address these issues, patent CN101339144B ​​provides an automatic double-sided coin detection device that uses a parallel light source in conjunction with obverse and reverse reflectors to image the coin passing through the imaging slit. This image is captured by a line scan camera and transmitted to an image processing system, enabling simultaneous automatic detection of both sides of the coin.

[0003] However, most existing automatic coin detection devices use flat belt conveyors for transport or flipping, which have irreconcilable structural limitations in terms of detection performance, affecting high-precision, high-quality, and high-standard detection. Summary of the Invention

[0004] The purpose of this invention is to provide a coin queue conveying, inspection and sorting system that uses a double glass turntable for conveying, and can achieve high-precision, high-quality and high-standard inspection in terms of inspection performance.

[0005] According to one objective of the present invention, a coin queue conveying, detection, and sorting system is provided, comprising:

[0006] The feeding queue conveyor directional flipping section is used to transport coins and adjust them so that all sides are facing up before conveying them to the double glass turntable conveyor section;

[0007] The double-glass turntable conveyor includes a double-layer glass disc structure, which conveys and identifies both sides of the coin, separating normal coins from damaged coins and conveying them to the discharge sorting conveyor.

[0008] The unloading sorting and conveying unit includes a normal coin conveyor belt and a damaged coin conveyor belt, which respectively transport normal coins and damaged coins to the coin collection position;

[0009] The bottom frame is used to support the feeding queue conveyor directional flipping section, the double glass turntable conveyor section, and the discharging sorting conveyor section.

[0010] Furthermore, the feeding queue conveyor directional turning section includes a first belt conveyor and a second belt conveyor, with the tail of the first belt conveyor located above the head of the second belt conveyor; the head end of the first belt conveyor is provided with a feeding hopper, and the first belt conveyor is provided with two sections of coin counting rods that are spliced ​​together and intersected.

[0011] Furthermore, the first belt conveyor is provided with a flipping recognition unit, which includes a recognition camera disposed above the first belt conveyor. The tail end of the first belt conveyor is provided with a chute for coins to slide down, the chute including a forward chute and a flipping chute. The forward chute is disposed on the side corresponding to the coin queue, and the flipping chute is disposed on the side away from the coin queue.

[0012] Furthermore, the positive slide is a curved slide with a gradually decreasing height, and the positive slide is used to slide the heads-up coin onto the second belt conveyor; the flipping slide has a semi-circular arc structure, and the inner side of the flipping slide corresponds to the first belt conveyor.

[0013] Furthermore, the first belt conveyor is also equipped with an air nozzle, which is located behind the recognition camera.

[0014] Furthermore, the second belt conveyor is equipped with a figure-eight coin bar, and the output section of the second belt conveyor is connected to the double glass turntable conveyor section.

[0015] Furthermore, the double-glass turntable conveying unit includes an upper glass disk, a lower glass disk, and a rotating shaft. The upper glass disk and the lower glass disk are arranged vertically. The upper glass disk and the lower glass disk are respectively connected to the rotating shaft, and the rotating shaft is connected to a drive motor.

[0016] Furthermore, both the upper glass plate and the lower glass plate are provided with a number of visual recognition stations, which are fixed above or below the upper glass plate or the lower glass plate by a fixed bracket.

[0017] Furthermore, a coin flipping and dropping mechanism is provided on one side of the upper glass plate. The coin flipping and dropping mechanism includes a semi-circular baffle and a slanted slide plate. A coin sorting baffle is provided above the upper glass plate near the coin flipping and dropping mechanism. The coin sorting baffle is used to sort the coins on the upper glass plate and make them slide down the slanted slide plate onto the semi-circular baffle so that they enter the lower glass plate. The lower outlet of the semi-circular baffle is located on the lower glass plate, and there are multiple visual recognition stations above or below the lower glass plate.

[0018] Furthermore, the coin sorting baffle is also provided with several damaged coin nozzles, and a damaged coin collection bin is provided on the outer side of the corresponding position of the damaged coin nozzles. A damaged coin separation conveyor belt is provided at the bottom of the damaged coin collection bin. A coin separation plate is provided above the lower glass plate. The coin separation plate separates the flawless coins located on the lower glass plate and drops them onto the whole coin separation conveyor belt.

[0019] The technical solution of this invention completes a series of coin sorting processes, including queue conveying, obverse / reverse orientation detection, obverse surface quality inspection and sorting, product flipping, reverse surface quality inspection and sorting, and separate output of good and bad quality coins. This invention employs a double-glass turntable conveyor during the detection, transmission, or flipping process. The double-glass turntable conveyor separately identifies and sorts the obverse and reverse sides of the coins, achieving high-precision, high-quality, and high-standard detection performance. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the bottom frame and the feeding queue conveyor directional flipping section of an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the bottom frame and the double-glass turntable conveying section according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the bottom frame and lower glass disk in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the bottom frame and the discharge sorting and conveying section in an embodiment of the present invention;

[0026] In the diagram: 1. Bottom frame; 2. Feeding queue conveyor directional turning section; 3. Double glass turntable conveyor; 4. Discharge sorting conveyor; 5. Casters; 6. First belt conveyor; 7. Second belt conveyor; 8. Feed hopper; 9. Recognition camera; 10. Forward chute; 11. Turning chute; 12. Air nozzle; 13. V-shaped coin handling rod; 14. Upper glass plate; 15. Lower glass plate; 16. Rotating shaft; 17. Visual recognition station; 18. Semi-circular baffle; 19. Coin sorting baffle; 20. Damaged coin nozzle; 21. Damaged coin collection bin; 22. Damaged coin separation belt conveyor; 23. Coin separation plate; 24. Whole coin separation belt conveyor. Detailed Implementation

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example 1

[0031] like Figures 1-5 As shown,

[0032] A coin queue conveying, detection, and sorting system includes a bottom frame 1, a feeding queue conveying directional flipping section 2, a double-glass turntable conveying section 3, and an output sorting conveying section 4. The feeding queue conveying directional flipping section 2, the double-glass turntable conveying section 3, and the output sorting conveying section 4 are all fixed to the top of the bottom frame 1. Wherein:

[0033] The bottom of the base frame 1 is equipped with several casters 5, which can move the base frame 1 and the equipment mounted on it. The casters 5 can be swivel casters with brakes for easy turning, movement and fixation.

[0034] The feeding queue conveyor directional turning section 2 includes a first belt conveyor 6 and a second belt conveyor 7. The tail of the first belt conveyor 6 is located above the head of the second belt conveyor 7, and is used to transport coins from the first belt conveyor 6 to the second belt conveyor 7. The head end of the first belt conveyor 6 is provided with a feeding hopper 8. The first belt conveyor 6 is provided with two sections of coin sorting rods that are spliced ​​together and intersected. The two coin sorting rods have an eight-shaped structure, which can sort the coins fed from the feeding hopper 8 onto the first belt conveyor 6 into a row, so that the row of coins can be evenly arranged on one side of the first belt conveyor 6 and transported with the first belt conveyor 6.

[0035] The rear of the coin counting lever is equipped with a flipping recognition unit, which includes a recognition camera 9 mounted above the first belt conveyor 6. The recognition camera 9 can identify the front and back of the coin. The tail of the first belt conveyor 6 is equipped with a chute for the coins to slide down. The chute includes a front chute 10 and a flipping chute 11. The front chute 10 is located on the side corresponding to the coin queue, and the flipping chute 11 is located on the side away from the coin queue.

[0036] The positive slide 10 is a curved slide 10 with a gradually decreasing height and a natural 90° curvature, used to slide the heads-up coin onto the second belt conveyor 7.

[0037] The flipping chute 11 has a semi-circular arc structure. The inner side of the flipping chute 11 corresponds to the first belt conveyor 6. It is used to transport the coins to the second belt conveyor 7 after they are naturally flipped by the first belt conveyor 6.

[0038] In this embodiment, the coin is placed with its front (face) facing up by default. The first belt conveyor 6 is also equipped with an air nozzle 12, which is located behind the recognition camera 9. The air nozzle 12 can blow the coin with its face up to the other side of the first belt conveyor 6 (i.e., the side with the flipping chute 11), so that the coin with its face up slides from the front chute 10 to the second belt conveyor 7, and the coin with its face down slides from the flipping chute 11 to the second belt conveyor 7.

[0039] The second belt conveyor 7 is also equipped with a figure-eight coin-collecting rod 13, which sorts all the coins facing up to one side of the second belt conveyor 7. The output part of the second belt conveyor 7 is connected to the double glass turntable conveyor part 3.

[0040] The double-glass turntable conveyor unit 3 includes an upper glass plate 14, a lower glass plate 15, and a rotating shaft 16. The upper glass plate 14 and the lower glass plate 15 are arranged vertically and are connected to the rotating shaft 16, respectively, and can rotate under the drive of the rotating shaft 16. The rotating shaft 16 is connected to a drive motor, and the rotating shaft 16 can drive the upper glass plate 14 and the lower glass plate 15 to rotate under the drive of the drive motor.

[0041] Several visual recognition stations 17 are provided on both the upper glass plate 14 and the lower glass plate 15. The visual recognition stations 17 are used to identify coin patterns, anti-counterfeiting marks, etc. The visual recognition stations 17 include cameras, lenses and light sources. The visual recognition stations 17 are fixed above or below the upper glass plate 14 or the lower glass plate 15 by fixed brackets.

[0042] Coins transported on the second belt conveyor 7 are guided by the figure-eight coin-collecting rod 13 at the tail of the second belt conveyor 7 and slide onto the upper glass plate 14 of the double glass turntable conveyor section 3. As the upper glass plate 14 rotates, it passes sequentially through multiple visual recognition stations 17 above or below the upper glass plate 14, where the corresponding visual recognition stations 17 identify the relevant features of the coins. A coin flipping and dropping mechanism is provided on one side of the upper glass plate 14. The coin flipping and dropping mechanism includes a semi-circular baffle 18 and a slanted slide plate. A coin sorting baffle 19 is provided above the upper glass plate 14 near the coin flipping and dropping mechanism. The coin sorting baffle 19 is used to sort the coins on the upper glass plate 14 and allow them to slide onto the semi-circular baffle 18 via the slanted slide plate, thus entering the lower glass plate 15. The coin sorting baffle 19 is also equipped with several coin nozzles 20. A coin collection bin 21 is provided on the outer side of the corresponding position of the coin nozzles 20. The coin nozzles 20 can blow the coin defects identified by the visual recognition station 17 on the upper glass plate 14 into the corresponding coin collection bin 21. A coin separation conveyor belt 22 is provided at the bottom of the coin collection bin 21.

[0043] The lower outlet of the semi-circular baffle 18 of the coin flipping and falling mechanism is located on the lower glass plate 15. It can flip the flawless coin identified from the upper glass plate 14 and put it into the lower glass plate 15. As the lower glass plate 15 rotates, it passes through multiple visual recognition stations 17 above or below the lower glass plate 15 in sequence, and the corresponding visual recognition station 17 identifies the corresponding features of the coin.

[0044] A coin separating plate 23 is provided above the lower glass plate 15. The coin separating plate 23 separates the flawless coins located on the lower glass plate 15 and drops them onto the whole coin separating conveyor belt 24. The whole coin separating conveyor belt 24 and the damaged coin separating conveyor belt 22 are set up accordingly, and respectively separate and transport the damaged coins and normal coins after the entire device is separated to the corresponding coin collection points.

[0045] In this embodiment, the radius of the lower glass disk 15 is larger than that of the upper glass disk 14. The upper glass disk 14 and the lower glass disk 15 are used to identify and sort the obverse and reverse sides of the coin, respectively. The upper glass disk 14 has a diameter of 800mm, and the lower glass disk 15 is a tempered glass disk with a diameter of 1000mm. The upper glass disk 14 and the lower glass disk 15 are mounted on a direct drive motor (DD motor) via a bracket. The two glass disks rotate synchronously. Compared with traditional belt conveyors, this transportation method can ensure good flatness.

[0046] In this embodiment, the visual recognition station 17 includes multiple modules such as a double-sided annular detection station, a surface parallel coaxial detection station, a surface combined annular detection station, a surface invisible detection station, a surface side detection station, and a surface color difference detection station. These modules are used to identify coin defects such as mold conversion, surface dents, surface peeling, surface scratches, surface dirt, edge damage, laser dot matrix, miniaturization, pattern dents, sandblasting dents, invisible defects, miniaturization, invisible defects, side tooth length and shortness, side lettering, side color difference, color difference, and dirt. The above modules are commonly used detection modules in this field, and their specific structures will not be described in detail here.

[0047] This invention completes a series of coin sorting processes, including queue conveying, obverse / reverse orientation detection, obverse surface quality inspection and sorting, product flipping, reverse surface quality inspection and sorting, and outputting good and bad quality coins separately. The invention employs a double-glass turntable conveyor during the detection, conveying, and flipping processes. The upper glass disc 14 and the lower glass disc 15 respectively identify and sort the obverse and reverse sides of the coins, achieving high-precision, high-quality, and high-standard detection performance.

[0048] 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 foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coin queue conveying detection and sorting system, characterized in that, The coin sorting machine comprises: a feeding queue conveying and directional turning part for conveying coins and adjusting the coins to the same face up and then conveying the coins to a double glass turntable conveying part; the double glass turntable conveying part comprises a double-layer glass disc structure for conveying and identifying two faces of the coins respectively and separating normal coins and residual coins and then conveying the normal coins and the residual coins to an output sorting conveying part; the output sorting conveying part comprises a normal coin conveying belt and a residual coin conveying belt for conveying the normal coins and the residual coins to a coin collecting position respectively; a bottom frame for bearing the feeding queue conveying and directional turning part, the double glass turntable conveying part and the output sorting conveying part; the feeding queue conveying and directional turning part comprises a first belt conveyor and a second belt conveyor, the tail of the first belt conveyor is above the head of the second belt conveyor; the head of the first belt conveyor is provided with a feeding hopper, two coin sorting rods are arranged on the first belt conveyor in a first-last splicing and cross arrangement; a turning and identifying part is arranged on the first belt conveyor, the turning and identifying part comprises an identifying camera arranged above the first belt conveyor, the tail of the first belt conveyor is provided with a chute for the coins to slide down, the chute comprises a normal chute and a turning chute, the normal chute is arranged on the side corresponding to the coin queue, and the turning chute is arranged on the side away from the coin queue; an air nozzle is further arranged on the first belt conveyor, and the air nozzle is arranged behind the identifying camera; the double glass turntable conveying part comprises an upper glass disc, a lower glass disc and a rotating shaft, the upper glass disc and the lower glass disc are arranged in a top-bottom distribution, the upper glass disc and the lower glass disc are connected with the rotating shaft respectively, and the rotating shaft is connected with a driving motor; a plurality of visual identification stations are arranged on the upper glass disc and the lower glass disc, and the visual identification stations are fixed above or below the upper glass disc or the lower glass disc through a fixed support; a coin turning and falling mechanism is arranged on one side of the upper glass disc, the coin turning and falling mechanism comprises a semicircular baffle and an inclined sliding plate, a coin arranging baffle is arranged above the upper glass disc and close to the coin turning and falling mechanism, the coin arranging baffle is used for combing the coins on the upper glass disc and making the coins slide through the inclined sliding plate to the semicircular baffle and then enter the lower glass disc; the lower outlet of the semicircular baffle is located on the lower glass disc, and a plurality of visual identification stations are arranged above or below the lower glass disc.

2. A coin queue conveying, detecting and sorting system according to claim 1, characterized in that The normal chute is a curved chute, the normal chute is a curved chute with gradually decreasing height, and the normal chute is used for sliding the coins with the face up to the second belt conveyor; the turning chute is a semicircular arc structure, and the inner side of the turning chute corresponds to the first belt conveyor.

3. The coin queue conveying, detecting and sorting system of claim 1 wherein, The second belt conveyor is provided with a V-shaped coin sorting rod, and the output part of the second belt conveyor is connected with the double glass turntable conveying part.

4. The coin queue conveying, detecting and sorting system of claim 1 wherein, The coin arranging baffle is further provided with a plurality of residual coin nozzles, the residual coin nozzles are provided with residual coin collecting bins outside corresponding positions, and the bottom of the residual coin collecting bin is provided with a residual coin separating belt machine; the upper layer of the glass disc is provided with a coin separating plate, and the coin separating plate separates and falls the coins without flaws on the lower layer of the glass disc onto the coin separating belt machine.

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