Banknote receiving and stacking device, cash circulation processing device and banknote receiving and stacking control method

Abstract

A banknote receiving and stacking device, a cash circulation processing device and a banknote receiving and stacking control method. The banknote receiving and stacking device comprises a rack (100), and a first conveying assembly (200), a conveying mechanism (300) and a storage portion (600) which are arranged on the rack (100); the rack (100) is provided with a banknote inlet (101) configured to allow a banknote to enter, and in a banknote inlet direction, the first conveying assembly (200) and the conveying mechanism (300) are both located downstream of the banknote inlet (101), and the storage portion (600) is located below the first conveying assembly (200); the first conveying assembly (200) comprises two first belt pulleys (220), a first conveying belt (230) and at least one blade (240); the two first belt pulleys (220) are spaced apart in the banknote inlet direction; the first conveying belt (230) is supported by the two first belt pulleys (220); when rotating, the first belt pulleys (220) drive the first conveying belt (230) to move; the blade (240) is connected to the outer surface of the first conveying belt (230) to form a clamping portion (201) having an opening (241); when the first conveying belt (230) moves, the clamping portion (201) moves along with the first conveying belt (230), and when the clamping portion (201) is located at a set position above the first conveying belt (230), the opening (241) is opposite the banknote inlet (101); the conveying mechanism (300) is configured to drive a banknote to enter the clamping portion (201) through the opening (241); the clamping portion (201) is configured to clamp the banknote to move along with the first conveying belt (230); and the storage portion (600) is configured to receive a banknote clamped by the clamping portion (201) to a position below the first conveying belt (230) and separated from the clamping portion (201).

Description

Banknote accumulation device, cash circulation processing equipment and banknote accumulation control method

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 23, 2023, with application number 202311575991.1. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of cash processing equipment, for example, to a banknote accumulation device, a cash circulation processing device and a banknote accumulation control method. Background Art

[0003] Related art banknote recycling and processing equipment typically includes a banknote stacking device for receiving and stacking banknotes. For example, the banknote recycling and processing equipment includes a coin box for storing banknotes, which is equipped with a banknote stacking device for receiving and stacking banknotes. The banknote stacking device provided in the related art includes a coin inlet, a conveying assembly, and a storage unit. The storage unit is disposed below the coin inlet. The conveying assembly is disposed at the coin inlet and is configured to drive banknotes through the coin inlet and into the storage unit one by one. After the banknotes enter the storage unit under the drive of the conveying assembly, they are stacked in the storage unit under the action of their own gravity. However, the banknote stacking device sometimes needs to collect banknotes of different sizes. As banknotes enter the storage unit through the coin inlet, the front end of the banknote that enters the storage unit first tilts downward under the action of its own gravity, potentially colliding with the rear end of smaller banknotes already stacked in the storage unit, resulting in a messy stack of banknotes. In severe cases, banknotes may become stuck in the coin inlet, preventing the banknote stacking device from receiving any further banknotes. Summary of the Invention

[0004] The present application provides a banknote accumulation device and a banknote accumulation control method. The banknote accumulation device and banknote accumulation method provided in the present application can solve the problem in the related art that banknotes are easily stacked and messy, or even stuck in the coin inlet. The present application also provides a cash recycling processing device, which includes the above-mentioned banknote accumulation device.

[0005] The embodiments of the present application can be implemented as follows:

[0006] In the first aspect, the present application provides a banknote accumulation device, including a frame and a first conveying assembly, a conveying mechanism and a storage portion arranged on the frame. The frame is provided with a coin inlet for banknotes to enter. Along the coin entry direction, the first conveying assembly and the conveying mechanism are both located downstream of the coin inlet, and the storage portion is located below the first conveying assembly; wherein the first conveying assembly includes two first pulleys, a first conveyor belt and at least one blade, the two first pulleys are arranged at intervals along the coin entry direction, the first conveyor belt is supported by the two first pulleys, and the first conveyor belt is driven to move when the first pulley rotates; the blade is connected to the outer surface of the first conveyor belt to form a clamping portion with an opening, and the clamping portion moves with the first conveyor belt when the first conveyor belt moves, and when the clamping portion is located at a set position above the first conveyor belt, the opening is opposite to the coin inlet; the conveying mechanism is configured to drive the banknotes to enter the clamping portion through the opening, the clamping portion is configured to clamp the banknotes and move with the first conveyor belt, and the storage portion is configured to receive the banknotes that are clamped to the bottom of the first conveyor belt and then separated from the clamping portion.

[0007] In a second aspect, the present application provides a cash recycling processing device, comprising a plurality of coin boxes, at least one of the plurality of coin boxes comprising the banknote accumulation device of any one of the aforementioned embodiments.

[0008] In a third aspect, the present application provides a banknote accumulation control method, which is applied to the banknote accumulation device of any one of the aforementioned embodiments, and the banknote accumulation control method includes:

[0009] In response to a set condition being met, controlling the clamping portion to move to a set position;

[0010] In response to detecting that a banknote enters the coin input port, controlling the conveying mechanism to move and the first conveying assembly to stop moving or controlling the conveying mechanism and the first conveying assembly to move at a differential speed, so as to drive the banknote into the clamping portion;

[0011] The conveying mechanism and the first conveying assembly are controlled to move so that the banknotes are clamped by the clamping portion and move along with the first conveying belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following is a brief introduction to the drawings required for use in the embodiments.

[0013] FIG1 is a schematic diagram of a cash recycling processing device according to an embodiment of the present application;

[0014] FIG2 is a schematic diagram of a storage box in one embodiment of the present application;

[0015] FIG3 is a schematic diagram of the arrangement of a banknote accumulation device in a coin box in one embodiment of the present application;

[0016] FIG4 is a schematic diagram of a first partial structure of a banknote accumulation device according to an embodiment of the present application;

[0017] FIG5 is a schematic diagram of the assembly of the first conveyor belt and blades in one embodiment of the present application;

[0018] FIG6 is a schematic diagram of a partial structural decomposition of a first conveying assembly in one embodiment of the present application;

[0019] FIG7 is a schematic structural diagram of a fixing member in one embodiment of the present application;

[0020] FIG8 is a schematic diagram of the assembly of the first conveyor belt and the fixing member in one embodiment of the present application;

[0021] FIG9 is an enlarged view of point IX in FIG3 ;

[0022] FIG10 is a schematic diagram of the cooperation between the stopper and the first conveyor belt in one embodiment of the present application;

[0023] FIG11 is a schematic diagram of a second partial structure of a banknote accumulation device according to an embodiment of the present application;

[0024] FIG12 is a control block diagram of a banknote accumulation device according to an embodiment of the present application;

[0025] FIG13 is a flow chart of a banknote accumulation control method according to an embodiment of the present application;

[0026] FIG14 is a schematic diagram of a first blade and a second blade in an embodiment of the present application.

[0027] icon:

[0028] 001-Cash recycling equipment; 010-Coin input device; 020-Coin identification device; 030-Coin output device; 040-Banknote conveying channel; 051-Counterfeit currency box; 052-Circulation box; 053-Storage box; 054-Filling box;

[0029] 100 - frame; 101 - coin inlet; 102 - first side wall; 103 - second side wall; 110 - stopper; 111 - blocking portion; 120 - curved plate; 130 - limit plate; 140 - detection element;

[0030] 200 - first conveying assembly; 201 - clamping portion; 210 - first rotating shaft; 211 - first transmission member; 212 - code disc; 213 - notch; 214 - first roller; 220 - first pulley; 230 - first conveyor belt; 231 - groove; 232 - upper conveying section; 233 - lower conveying section; 234 - curved conveying section; 240 - blade; 241 - opening; 242 - limiting groove; 243 - first blade; 244 - second blade; 250 - fixing member; 251 - limiting portion; 252 - guide surface; 253 - fixing hole; 254 - connecting portion; 255 - fixing portion; 260 - first motor; 270 - sensing element;

[0031] 300- conveying mechanism; 301- second conveying assembly; 310- second rotating shaft; 311- second transmission member; 312- second roller; 320- second pulley; 330- second conveyor belt; 340- second motor; 350- third pulley; 360- third conveyor belt;

[0032] 400 - third conveying assembly; 410 - conveying roller; 420 - driven roller;

[0033] 500-fourth conveying assembly;

[0034] 600-storage portion; 601-support plate;

[0035] 700-controller. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present application to illustrate the technical solutions in the embodiments of the present application. The described embodiments are part of the embodiments of the present application, but not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0039] In the description of this application, if the terms "upper", "lower", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the invented product is usually placed when in use, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0040] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0041] In the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0042] Figure 1 is a schematic diagram of a cash recycling device 001 according to one embodiment of the present application; Figure 2 is a schematic diagram of a storage box 053 according to one embodiment of the present application. As shown in Figures 1 and 2, the cash recycling device 001 provided in this embodiment includes a coin input device 010, a coin identification device 020, a coin dispensing device 030, and multiple coin boxes. The coin input device 010 is configured to receive banknotes deposited by a user; the coin identification device 020 is configured to collect banknote information; the coin dispensing device 030 is configured to dispense banknotes to the user; and the coin boxes are configured to store banknotes input by the coin input device 010 or to dispense banknotes to the coin dispensing device 030. The cash recycling device 001 also includes a banknote conveying channel 040 connecting the multiple devices and the coin boxes. The banknote conveying channel 040 is configured to convey banknotes to facilitate the circulation of banknotes between the multiple devices and the coin boxes. In this embodiment of the present application, the multiple coin boxes are divided into different types according to their functions, including a counterfeit coin box 051, a recycling box 052, a storage box 053, and a filling box 054. The counterfeit currency box 051 is configured to receive banknotes identified as counterfeit currency by the coin recognition device 020 during deposits; the circulation box 052 is configured to receive banknotes identified as normal by the coin recognition device 020 during deposits and to output banknotes during withdrawals; the storage box 053 is configured to receive banknotes identified as normal and large-denomination banknotes by the coin recognition device 020 during deposits, to receive banknotes identified as abnormal by the coin recognition device 020 during withdrawals and loading, and to receive banknotes output by the circulation box 052 during machine clearing; the loading box 054 is configured to load banknotes into the circulation box 052.

[0043] Banknotes need to be neatly stacked in each coin box. Therefore, in the embodiments of the present application, at least one of the multiple coin boxes includes the banknote accumulation device provided by the embodiments of the present application. In this embodiment, storage box 053 includes the banknote accumulation device. In other embodiments, circulation box 052, loading box 054, and counterfeit coin box 051 may also optionally include a banknote accumulation device.

[0044] FIG3 is a schematic diagram of the arrangement of a banknote stacking device in a coin box according to one embodiment of the present application; FIG4 is a schematic diagram of a first partial structure of the banknote stacking device according to one embodiment of the present application. As shown in FIG3 and FIG4 , the banknote stacking device provided in the embodiment of the present application includes a frame 100, a first conveying assembly 200, a conveying mechanism 300, and a storage section 600 disposed on the frame 100. The frame 100 is provided with a banknote inlet 101 configured to receive banknotes. In the direction of banknote entry, the first conveying assembly 200 and the conveying mechanism 300 are both located downstream of the banknote inlet 101, and the storage section 600 is located below the first conveying assembly 200. Banknotes entering from the banknote inlet 101 are sequentially conveyed by the conveying mechanism 300 and the first conveying assembly 200, and ultimately stacked in the storage section 600. Optionally, a support plate 601 is provided in the storage section 600 to support the banknotes. The support plate 601 is movable along the direction in which the banknotes are stacked.

[0045] The frame 100 includes a first side wall 102 and a second side wall 103 spaced apart along the direction of coin entry, and a bottom wall connected between the first side wall 102 and the second side wall 103. The space between the first side wall 102 and the second side wall 103, above the bottom wall, and below the first conveying assembly 200 forms a storage portion 600. The coin entry port 101 is located above the first side wall 102. The distance between the first side wall 102 and the second side wall 103 is greater than or equal to the length of the maximum-sized banknotes that the banknote accumulation device can accommodate along the direction of coin entry.

[0046] Figure 5 is a schematic diagram illustrating the assembly of the first conveyor belt 230 and blades 240 in one embodiment of the present application. Referring to Figures 3 to 5 , the first conveyor assembly 200 of this embodiment includes two first pulleys 220, a first conveyor belt 230, and at least one blade 240. The two first pulleys 220 are spaced apart along the direction of coin deposit. The first conveyor belt 230 is supported by the two first pulleys 220, and rotation of the first pulleys 220 drives the first conveyor belt 230. The blades 240 are connected to the outer surface of the first conveyor belt 230 to form a clamping portion 201 with an opening 241. When the first conveyor belt 230 moves, the clamping portion 201 moves with the first conveyor belt 230. When the clamping portion 201 is located at the set position above the first conveyor belt 230, the opening 241 is opposite to the coin inlet 101; the conveying mechanism 300 is configured to drive the banknotes into the clamping portion 201 through the opening 241, and the clamping portion 201 is configured to clamp the banknotes and move with the first conveyor belt 230. The storage portion 600 is configured to receive the banknotes that are clamped by the clamping portion 201 to the bottom of the first conveyor belt 230 and then separated from the clamping portion 201.

[0047] In the embodiment of the present application, when a banknote enters the coin inlet 101, the clamping portion 201 is located at a predetermined position above the first conveyor belt 230, with the opening 241 facing the coin inlet 101. Therefore, the leading end of the banknote can be inserted into the clamping portion 201 through the opening 241. As the first conveyor belt 230 moves, the clamping portion 201 clamps the banknote and moves along with the first conveyor belt 230. When the banknote is above the first conveyor belt 230, it moves along with the first conveyor belt 230 in the coin inlet direction (see arrow a in FIG8 ). When the banknote turns downward and moves below the first conveyor belt 230, it moves along with the first conveyor belt 230 in the direction opposite to the coin inlet direction (see arrow b in FIG8 ). During this movement, the leading end of the banknote remains within the clamping portion 201, and the trailing end of the banknote falls downward under its own weight and contacts the upper surface of the banknotes already stacked in the storage portion 600. As the banknote continues to move in the direction opposite to the banknote insertion direction, the front end of the banknote detaches from the clamping portion 201 under the action of its own gravity and falls downward onto the banknotes already stacked in the storage portion 600. During the entire process of stacking the banknotes in the storage portion 600, neither end of the banknote will interfere with the ends of the banknotes already stacked in the storage portion 600. Therefore, the banknote can be stacked smoothly on the previous banknote, thereby preventing banknote jams in the banknote insertion port 101 and improving the neatness of the banknote stacking in the storage portion 600.

[0048] In this embodiment, the first conveyor assembly 200 includes a plurality of blades 240 arranged in sequence and spaced apart along the moving direction of the first conveyor belt 230. The first end of each blade 240 is connected to the outer surface of the first conveyor belt 230. As shown in FIG14 , the plurality of blades 240 include adjacent first blades 243 and second blades 244. Along the moving direction of the first conveyor belt 230, the second blade 244 is located downstream of the first blade 243. The second end of the second blade 244 overlaps the outer surface of the first blade 243. The first blade 243, the second blade 244, and the first conveyor belt 230 collectively form a clamping portion 201. An opening 241 is formed between the second end of the second blade 244 and the first blade 243. When a banknote is clamped by the clamping portion 201, the second blade 244 abuts one side of the banknote, while the first blade 243 and the first conveyor belt 230 abut the other side of the banknote, thereby clamping the banknote in the clamping portion 201 formed by the first blade 243, the second blade 244, and the first conveyor belt 230. When the clamping portion 201 is in the set position, the second end of the second blade 244 is located above the first conveyor belt 230 and adjacent to the first pulley 220 near the coin inlet 101, and the first blade 243 is curved around the first pulley 220 near the coin inlet 101. Such arrangement enables the opening 241 formed between the second end of the second blade 244 and the first blade 243 to be enlarged when the clamping portion 201 is in the set position, which is conducive to the banknotes entering the clamping portion 201 through the opening 241. When the clamping portion 201 leaves the set position, the first blade 243 is bent and flattened, so that the opening 241 is reduced, which is conducive to the clamping portion 201 clamping the banknotes.

[0049] The second end of each blade 240 is overlapped on the outer surface of the blade 240 located upstream thereof, thereby increasing the number of the clamping parts 201 formed by the plurality of blades 240 and the first conveyor belt 230. When the banknotes are accumulated, the banknotes can enter the clamping part 201 nearby, thereby improving the efficiency of the banknote accumulation. At the same time, the plurality of blades 240 are overlapped in sequence, which not only improves the structural compactness of the banknote accumulation device, but also when the banknotes are clamped by the clamping part 201 and move to the bottom of the first conveyor belt 230, the strength of the overlapping parts of the two adjacent blades 240 is higher, which increases the support force for the banknotes, so that when the banknotes rotate to the bottom of the first conveyor belt 230, the blades 240 can still clamp the banknotes and move with the banknotes in the opposite direction of the banknote input direction until the front end of the banknotes moves close to the first side wall. The banknotes will then detach from the clamping part 201 under the action of their own gravity and fall into the storage part 600, thereby ensuring the neat stacking of the banknotes in the storage part 600.

[0050] Optionally, the second end of the blade 240 is V-shaped, and the banknote contacts the tip of the V when entering the opening 241. This configuration reduces the area of ​​the banknote that contacts the second end of the blade 240 when entering the opening 241, reducing the resistance of the second end of the blade 240 to the movement of the banknote, and facilitating the smooth entry of the banknote into the clamping portion 201. In this embodiment, the blade 240 is made of an elastic material, and the elastic force of the blade 240 itself causes the second end of the blade 240 to always have a tendency to move closer to the first conveyor belt 230. This facilitates the clamping portion 201 to clamp the banknote so that it can move with the first conveyor belt 230. Optionally, the blade 240 is made of metal, polyimide (PI), or graphene. Alternatively, the metal can be stainless steel or spring steel.

[0051] In other optional embodiments, the second end of the downstream blade 240 can overlap the first conveyor belt 230. The first conveyor assembly 200 includes a plurality of blades 240 arranged in sequence along the moving direction of the first conveyor belt 230. The first end of each blade 240 is connected to the outer surface of the first conveyor belt 230. The blade 240 overlaps the outer surface of the first conveyor belt 230 and forms a clamping portion 201 between the blade 240 and the first conveyor belt 230. The first conveyor belt 230 includes two curved conveying sections 234 respectively opposite to the two first pulleys 220. When the clamping portion 201 is in the set position, the second end of the blade 240 (specifically, the blade 240 constituting the clamping portion 201 in the set position) is located above the first conveyor belt 230 and adjacent to the first pulley 220 near the coin inlet 101. An opening 241 is formed between the second end of the blade 240 and the curved conveying section 234 near the coin inlet 101.

[0052] FIG6 is a partial exploded view of the first conveyor assembly 200 according to one embodiment of the present application; FIG7 is a structural schematic diagram of the fixing member 250 according to one embodiment of the present application; and FIG8 is a schematic diagram of the assembly of the first conveyor belt 230 and the fixing member 250 according to one embodiment of the present application. As shown in FIG5 to FIG8, the first conveyor assembly 200 according to this embodiment further includes a fixing member 250, which is fixedly connected to the first conveyor belt 230. One of the first end of the blade 240 and the fixing member 250 includes a retaining groove 242, and the other of the first end of the blade 240 and the fixing member 250 includes a retaining portion 251. The retaining portion 251 is inserted into the retaining groove 242 perpendicular to the direction of movement of the first conveyor belt 230, thereby ensuring a reliable connection between the blade 240 and the first conveyor belt 230. In other embodiments, the fixing member 250 presses the first end of the blade 240 against the outer surface of the first conveyor belt 230, that is, the blade 240 is clamped between the fixing member 250 and the first conveyor belt 230.

[0053] Optionally, the fixing member 250 includes a connecting portion 254 and two limiting portions 251. The two limiting portions 251 are located on either side of the first conveyor belt 230 along its width. The connecting portion 254 is connected between the two limiting portions 251 and faces the outer surface of the first conveyor belt 230. The blade 240 is located between the connecting portion 254 and the outer surface of the first conveyor belt 230. The blade 240 includes two limiting grooves 242. The two limiting portions 251 are inserted into the two limiting grooves 242 perpendicular to the direction of movement of the first conveyor belt 230. In this embodiment, the two limiting grooves 242 can be notches formed on opposite sides of the blade 240 along its width, and the two limiting grooves 242 open in opposite directions. In this arrangement, the cooperation between the two limiting parts 251 and the two limiting grooves 242 limits the displacement of the blade 240 relative to the first conveyor belt 230 along the moving direction and width direction of the first conveyor belt 230, and the connecting part 254 limits the displacement of the blade 240 along the thickness direction of the first conveyor belt 230, further improving the reliability of the connection between the blade 240 and the first conveyor belt 230.

[0054] In this embodiment, the first conveying assembly 200 includes a plurality of fixing members 250 arranged at intervals along the moving direction of the first conveyor belt 230, and the plurality of fixing members 250 correspond one-to-one to the plurality of blades 240. The first end of each blade 240 is connected to the outer surface of the first conveyor belt 230 through the corresponding fixing member 250. Each blade 240 is overlapped on the fixing member 250 corresponding to the blade 240 located upstream thereof. The connecting portion 254 of each fixing member 250 is provided with a guide surface 252, and the guide surface 252 is configured to guide the banknotes entering the opening 241 to move to the root of the clamping portion 201 away from the opening 241, so as to increase the clamping force of the clamping portion 201 on the banknotes.

[0055] In this embodiment, the inner surface of the first conveyor belt 230 is provided with a groove 231, and the fixing member 250 further includes a fixing portion 255. The fixing portion 255 is embedded in the groove 231, and the two ends of the fixing portion 255 are respectively fixedly connected to the two limit portions 251. The provision of the groove 231 facilitates the installation and positioning of the fixing member 250 and the first conveyor belt 230, thereby enabling the positioning of the blade 240 on the first conveyor belt 230, thereby improving the assembly accuracy and assembly efficiency of the blade 240. Optionally, the inner surface of the first conveyor belt 230 is provided with multiple grooves 231 at equal intervals, and the fixing portions 255 of the multiple fixing members 250 are embedded in the multiple grooves 231 in a one-to-one correspondence, and the multiple blades 240 are connected to the multiple fixing members 250 in a one-to-one correspondence. Optionally, the fixing portion 255 is an elastic cotter pin, and the two limiting portions 251 of the fixing member 250 are respectively provided with fixing holes 253, which are coaxially arranged with the groove 231. The two ends of the elastic cotter pin are respectively interference-engaged with the fixing holes 253 on the two limiting portions 251, and the elastic cotter pin is interference-embedded in the groove 231. In other embodiments, the fixing portion 255 is embedded in the groove 231 and connected to the first conveyor belt 230 via fasteners, and the two ends of the fixing portion 255 are fixedly connected to the two limiting portions 251 via fasteners.

[0056] Optionally, the first conveyor belt 230 is a toothed belt. The inner surface of the first conveyor belt 230 is provided with multiple teeth at equal intervals. The teeth are configured to mate with the first pulley 220, and grooves 231 are formed between adjacent teeth. This arrangement utilizes the toothed belt's inherent structure to mount the fixing member 250, reducing manufacturing costs. In another optional embodiment, the first conveyor belt 230 is a flat belt.

[0057] Figure 9 is an enlarged view of point IX in Figure 3 ; Figure 10 is a schematic diagram of the coordination between the stopper 110 and the first conveyor belt 230 in one embodiment of the present application. As shown in Figures 9 and 10 , the banknote accumulation device further includes a stopper 110 disposed on the frame 100 . The stopper 110 is disposed adjacent to the coin inlet 101 . When the clamping portion 201 is located below the first conveyor belt 230 , the stopper 110 is configured to prevent the banknotes clamped by the clamping portion 201 from continuing to move with the first conveyor belt 230 , thereby separating the banknotes from the clamping portion 201 .

[0058] By providing the stopper 110, when a banknote moves below the first conveyor belt 230 and approaches the coin inlet 101, the stopper 110 prevents the banknote from continuing to move, while the clamping portion 201 continues to move along with the first conveyor belt 230. As a result, the banknote can separate from the clamping portion 201 and fall into the storage portion 600 below, thereby improving the reliability of the banknote stacking in the storage portion 600. Optionally, the stopper 110 is plate-shaped or block-shaped.

[0059] In this embodiment, the first conveyor belt 230 includes an upper conveying section 232, a lower conveying section 233, and two curved conveying sections 234, wherein the upper conveying section 232 and the lower conveying section 233 are arranged in parallel and spaced apart, the upper conveying section 232 is located above the two first pulleys 220, and the lower conveying section 233 is located below the two first pulleys 220, the two curved conveying sections 234 are respectively opposite to the two first pulleys 220, and each curved conveyor belt is connected between the upper conveying section 232 and the lower conveying section 233; the baffle 110 is arranged adjacent to the first pulley 220 of the two first pulleys 220 close to the coin inlet 101, and the baffle 110 includes at least two baffles distributed on both sides of the lower conveying section 233 along its width direction. The blocking portion 111, the upper end of the blocking portion 111 is higher than the upper surface of the lower conveying section 233, and the lower end of the blocking portion 111 is lower than the lower surface of the lower conveying section 233. The width of the first conveyor belt 230 is smaller than the width of the banknote, so that when the banknote is clamped by the clamping portion 201 and moves along the first conveyor belt 230 in the opposite direction of the coin input direction (see arrow b in Figures 8 and 10) to the blocking portion 110, the front end of the banknote is wider than the part of the first conveyor belt 230 and contacts the blocking portion 111 distributed on both sides of the lower conveying section 233. The blocking portion 111 prevents the banknote from continuing to move, so that when the clamping portion 201 continues to move along the first conveyor belt 230 in the opposite direction b of the coin input direction, the banknote exits the clamping portion 201 and falls into the storage portion 600. Optionally, as shown in Figure 9, the baffle 110 is arranged adjacent to the first side wall 102, so that the position where the front end of the banknote breaks away from the clamping portion 201 and falls is as close to the first side wall 102 as possible, so that the banknotes are aligned along the first side wall 102 when stacked in the storage portion 600. In this way, the banknote accumulation device can ensure that the banknotes are neatly stacked in the storage portion 600 when collecting banknotes of different specifications.

[0060] In other embodiments, the first end of the blade 240 is connected to the outer surface of the first conveyor belt 230, and the second end of the blade 240 is suspended in the air. When the banknotes move to the bottom of the first conveyor belt 230 with the clamping portion 201, the second end of the blade 240 moves away from the first conveyor belt 230 under the action of its own weight and / or its own elasticity, thereby increasing the space of the clamping portion 201 and reducing the clamping force of the clamping portion 201 on the banknotes, so that the banknotes fall completely into the storage portion 600 under the action of their own gravity.

[0061] Optionally, the first conveyor belt 230 includes an upper conveying section 232 positioned above the two first pulleys 220, and the frame 100 includes a limit plate 130 that is parallel to and spaced apart from the upper surface of the upper conveying section 232 by a predetermined distance. A first end of a blade 240 is connected to the outer surface of the first conveyor belt 230, while a second end of the blade 240 is suspended in the air. When the blade 240 is positioned above the upper conveying section 232, the limit plate 130 is configured to limit the distance between the second end of the blade 240 and the upper conveying section 232. The limit plate 130 can restrict the second end of the blade 240 from moving away from the first conveyor belt 230, allowing the clamping portion 201 formed by the blade 240 to clamp the banknotes. Optionally, the frame 100 further includes a curved plate 120 (see FIG3 ). The curved plate 120 is disposed downstream of the limiting plate 130 in the direction of coin insertion and is spaced relative to the first pulley 220 of the two first pulleys 220 that is farther from the coin inlet 101. When the blade 240 turns with the first conveyor belt 230, the curved plate 120 is configured to limit the position of the blade 240 relative to the first conveyor belt 230. The provision of the curved plate 120 restricts the second end of the blade 240 from moving away from the first conveyor belt 230 when the blade 240 turns, thereby ensuring the clamping force of the clamping portion 201 on the banknote when the banknote turns, thereby delaying the time it takes for the rear end of the banknote to fall, thereby achieving the purpose of laying the banknote flat within the storage portion 600.

[0062] In the embodiment of the present application, the conveying mechanism 300 is configured to convey the banknotes entering from the coin inlet 101 to the first conveying assembly 200, for example, to the clamping portion 201 of the first conveying assembly 200. Figure 11 is a schematic diagram of the second partial structure of the banknote accumulation device in one embodiment of the present application. Please refer to Figures 3, 4 and 11. In this embodiment, the conveying mechanism 300 includes two second conveying assemblies 301. Along the axial direction of the first pulley 220, the two second conveying assemblies 301 are respectively arranged on both sides of the first conveying assembly 200. The two second conveying assemblies 301 are configured to drive the banknotes into the clamping portion 201 and jointly drive the banknotes to move along the first conveyor belt 230 with the clamping portion 201. By such an arrangement, the two second conveying assemblies 301 can respectively clamp the two ends of the banknote along its width direction, ensuring that the banknote can be inserted into the clamping part 201 through the opening 241, and ensuring that the part of the banknote in contact with the two second conveying assemblies 301 can be reliably moved along the coin input direction, so that the banknote clamped by the clamping part 201 can reliably move with the first conveyor belt 230, further improving the driving stability of the banknote.

[0063] Optionally, the second conveyor assembly 301 includes a second conveyor belt 330 and two second pulleys 320. The second conveyor belt 330 and the first conveyor belt 230 are arranged side by side and spaced apart along the axis of the first pulley 220, and the second conveyor belt 330 is supported by the two second pulleys 320. The banknote accumulation device also includes a first rotating shaft 210, a second rotating shaft 310, a first motor 260, and a second motor 340. The first rotating shaft 210 and the second rotating shaft 310 are arranged parallel and spaced apart along the direction of banknote insertion. One of the two first pulleys 220 is fixedly mounted on the first rotating shaft 210, and the other of the two first pulleys 220 is rotatably mounted on the second rotating shaft 310. One of the two second pulleys 320 is fixedly mounted on the second rotating shaft 310, and the other of the two second pulleys 320 is rotatably mounted on the first rotating shaft 210. The first motor 260 is in transmission connection with the first rotating shaft 210 and is configured to drive the first rotating shaft 210 to rotate. When the first pulley 220 rotates, the first conveyor belt 230 moves. The second motor 340 is in transmission connection with the second rotating shaft 310 and is configured to drive the second rotating shaft 310 to rotate. When the second pulley 320 rotates, the second conveyor belt 330 moves. This arrangement allows banknotes located above the first conveyor belt 230 to be driven by both the first and second conveyor belts 230 and 330, further improving the stability of the banknote movement. This allows the banknotes to reliably move with the clamping portion 201 to the bottom of the first conveyor belt 230, thereby enhancing the reliability of banknote accumulation. Moreover, the first conveying assembly 200 and the second conveying assembly 301 are separately controlled by different motors, which improves the driving flexibility of the banknotes. For example, the speed of the second conveying assembly 301 is greater than the speed of the first conveying assembly 200, so that the banknotes can be inserted into the clamping part 201 at a faster speed; at the same time, the two first pulleys 220 and the two second pulleys 320 share the first rotating shaft 210 and the second rotating shaft 310, which also improves the compactness of the structure.

[0064] Optionally, the first motor 260 is in transmission connection with the first rotating shaft 210 via a first transmission member 211, and the second motor 340 is in transmission connection with the second rotating shaft 310 via a second transmission member 311. The first transmission member 211 may be a pulley or a gear fixedly mounted on the first rotating shaft 210, and the second transmission member 311 may be a pulley or a gear fixedly mounted on the second rotating shaft 310. Optionally, the banknote accumulation device further includes two first rollers 214 rotatably mounted on the first rotating shaft 210 and two second rollers 312 rotatably mounted on the second rotating shaft 310. The two first rollers 214 are respectively adjacent to the two ends of the first rotating shaft 210, and the two second rollers 312 are respectively adjacent to the two ends of the second rotating shaft 310. The two first rollers 214 and the two second rollers 312 are configured to jointly support the movement of banknotes, thereby further improving the stability of banknote transportation.

[0065] Optionally, the second conveyor assembly 301 further includes two third pulleys 350 and a third conveyor belt 360. The two third pulleys 350 are spaced apart along the direction of banknote entry. The third conveyor belt 360 is sleeved over the two third pulleys 350 and positioned above the second conveyor belt 330. The second motor 340 is in driving connection with one of the two third pulleys 350. When the second motor 340 drives the third pulley 350 to rotate, the third pulley 350 drives the third conveyor belt 360 to move. The third conveyor belt 360 and the second conveyor belt 330 are configured to jointly clamp and drive banknotes into the clamping portion 201 and jointly drive the banknotes to move along with the first conveyor belt 230. The third conveyor belt 360 can press the banknotes against the second conveyor belt 330, further improving the stability of banknote conveyance. In other embodiments, the second conveying assembly 301 may also include a plurality of pressure rollers rotatably arranged on the frame 100, the plurality of pressure rollers being located above the second conveyor belt 330 and arranged at intervals along the direction of coin entry, the plurality of pressure rollers cooperating with the second conveyor belt 330 are configured to jointly clamp and drive the banknotes into the clamping portion 201, which can also serve to improve the stability of banknote conveying.

[0066] Optionally, the second conveyor belt 330 is configured as a toothed belt, and the second pulley 320 is configured as a corresponding toothed pulley. Optionally, the third conveyor belt 360 is configured as a toothed belt, and the third pulley 350 is configured as a corresponding toothed pulley. This arrangement improves the reliability of the second conveyor assembly 301 in driving the banknotes. In other embodiments, both the second conveyor belt 330 and the third conveyor belt 360 are configured as flat belts.

[0067] Optionally, the conveying mechanism 300 further includes a third conveying assembly 400 disposed on the frame 100. The third conveying assembly 400 includes a conveying roller 410 and a driven roller 420 cooperating with the conveying roller 410. Along the direction of deposit, the conveying roller 410 is located between the deposit port 101 and the first conveying assembly 200. The conveying roller 410 and the driven roller 420 are configured to clamp banknotes and drive the banknotes in contact therewith into the clamping portion 201. The third conveying assembly 400 can provide driving force to banknotes entering the deposit port 101 and guide the movement of the banknotes, ensuring smooth delivery to the first conveying assembly 200.

[0068] In this embodiment, the second motor 340 is connected to the second rotating shaft 310 and the conveying roller 410 through a belt drive; optionally, the rotating shaft where the third pulley 350 is located is arranged parallel to the conveying roller 410 and the two are connected through a gear drive, so that when the second motor 340 drives the conveying roller 410 and the second rotating shaft 310 to rotate, the third pulley 350 can also rotate synchronously.

[0069] Referring to FIG. 4 , in this embodiment, the banknote stacking device further includes a code disk 212 and a sensing element 270. The code disk 212 is coaxially fixedly connected to one of the two first pulleys 220. The sensing element 270 cooperates with the code disk 212 to jointly detect whether the clamping portion 201 is in a set position. Optionally, the sensing element 270 is a photoelectric sensor. The code disk 212 has a notch 213. When the photoelectric sensor cooperates with the notch 213 of the code disk 212, the photoelectric sensor outputs a first detection signal. When the photoelectric sensor cooperates with any portion of the code disk 212 other than the notch 213, the photoelectric sensor outputs a second detection signal. When the signal output by the photoelectric sensor changes from the second detection signal to the first detection signal, it is determined that the clamping portion 201 has moved to the set position. In this embodiment, by detecting the position of the code disk 212 by the sensing element 270, whether the clamping portion 201 has moved to the set position can be determined, thereby precisely controlling the movement of the clamping portion 201 to the set position.

[0070] Figure 12 is a control block diagram of a banknote accumulation device in one embodiment of the present application; Figure 13 is a flow chart of a banknote accumulation control method in one embodiment of the present application. As shown in Figures 12 and 13, the banknote accumulation device also includes a controller 700, which is communicatively connected to the first motor 260 and the second motor 340. The present application also provides a banknote accumulation control method, which is applied to the banknote accumulation device provided in the above embodiment of the present application. The banknote accumulation control method includes:

[0071] Step S100 : When a set condition is met, the clamping portion 201 is controlled to move to a set position.

[0072] Taking the banknote stacking device provided in the above-described embodiment of the present application as an example, the controller 700 can control the first motor 260 to drive the first conveyor belt 230 and can determine whether the clamping portion 201 has moved to the set position based on the detection signal output by the sensing element 270. Optionally, the set condition is a first set condition, which can be the initialization process performed when the banknote stacking device is powered on or after the banknote stacking operation is completed.

[0073] Step S200 , when it is detected that a banknote enters the coin input port 101 , the conveying mechanism 300 is controlled to move and the first conveying assembly 200 is stopped, or the conveying mechanism 300 and the first conveying assembly 200 are controlled to move at a differential speed to drive the banknote into the clamping portion 201 .

[0074] Taking the banknote accumulation device provided in the above-mentioned embodiment of the present application as an example, the banknote accumulation device may further include a detection member 140, which is communicatively connected to the controller 700. Along the direction of banknote entry, the detection member 140 is disposed between the banknote entry port 101 and the conveying mechanism 300. When no banknote passes through the detection member 140, the detection member 140 outputs a third detection signal. When a banknote passes through the detection member 140, the detection member 140 outputs a fourth detection signal. Optionally, the detection member 140 is a sensor. The controller 700 may determine whether a banknote has entered the banknote entry port 101 based on the detection signal fed back by the detection member 140. In one embodiment of the present application, when the signal output by the detection member 140 changes from the third detection signal to the fourth detection signal, the controller 700 determines that a banknote has entered the coin inlet 101, controls the first motor 260 not to move, and stops the first conveying assembly 200 from moving, that is, the first conveyor belt 230 stops moving, and the clamping part 201 remains in the set position, and the opening 241 of the clamping part 201 is opposite to the coin inlet 101. At the same time, the controller controls the second motor 340 to drive the conveying mechanism 300 to move, that is, the second motor 340 drives the second conveyor belt 330 and the third conveyor belt 360 to move, and the second conveyor belt 330 and the third conveyor belt 360 clamp and drive the banknote to move along the coin input direction, so that the banknote entering from the coin inlet 101 enters the clamping part 201 through the opening 241.

[0075] In another embodiment of the present application, when the signal output by the detection element 140 is changed from the third detection signal to the fourth detection signal, the controller 700 determines that a banknote has entered the coin inlet 101, controls the first motor 260 to drive the first conveying component to move, that is, the first motor 260 drives the first conveyor belt 230 to move, and controls the second motor 340 to drive the conveying mechanism 300 to move, that is, the second motor 340 drives the second conveyor belt 330 and the third conveyor belt 360 to move, and the speed at which the second conveyor belt 330 and the third conveyor belt 360 drive the banknote to move is greater than the speed at which the first conveyor belt 230 drives the banknote to move, that is, the conveying mechanism 300 and the first conveying component 200 move differentially, so that the second conveyor belt 330 and the third conveyor belt 360 clamp and drive the banknote into the clamping part 201.

[0076] Step S300 : controlling the conveying mechanism 300 and the first conveying assembly 200 to move, so that the banknotes are clamped by the clamping portion 201 and move along the first conveying belt 230 .

[0077] Optionally, the first conveying assembly 200 and the conveying mechanism 300 are controlled to move at a differential speed, so that the banknotes are clamped by the clamping portion 201 and move along with the first conveying belt 230 . Controlling the differential movement of the first conveying component 200 and the conveying mechanism 300 means controlling the speed of the conveying mechanism 300 to drive the banknotes to be greater than the speed of the first conveyor belt 230 to drive the banknotes to move. This arrangement makes it possible to utilize the difference in conveying speed of the banknotes between the conveying mechanism 300 and the first conveying component 200 to make the banknotes enter the clamping portion 201 and move to the root of the clamping portion 201 away from the opening 241, so as to ensure the clamping force of the clamping portion 201 on the banknotes during the movement of the first conveyor belt 230, and the conveying speed of the conveying mechanism 300 is greater than the conveying speed of the first conveying component 200, so that the conveying mechanism 300 always has a tendency to push the banknotes to move toward the root of the clamping portion 201, thereby avoiding the banknotes from being separated from the clamping portion 201, and ensuring that the banknotes are reliably moved with the first conveyor belt 230 under the clamping of the clamping portion 201.

[0078] Optionally, the first conveying assembly 200 and the conveying mechanism 300 are controlled to move at the same speed, so that the banknotes are clamped by the clamping portion 201 and move along the first conveyor belt 230. Controlling the conveying mechanism 300 and the first conveying assembly 200 to move at the same speed means controlling the speed at which the conveying mechanism 300 drives the banknotes to be equal to the speed at which the first conveyor belt 230 drives the banknotes. This configuration ensures that the driving force of the conveying mechanism 300 on the banknotes maintains the relative position of the banknotes and the clamping portion 201, thereby ensuring that the banknotes, clamped by the clamping portion 201, move synchronously with the first conveyor belt 230.

[0079] In one embodiment, after the banknote accumulation device is powered on to execute the initialization process or the banknote accumulation operation is completed, the controller 700 controls the first conveyor belt 230 to drive the clamping part 201 to move to the set position, so that the opening 241 of the clamping part 201 is opposite to the coin inlet 101; when the signal output by the detection member 140 changes from the third detection signal to the fourth detection signal, and it is determined that a banknote has entered the coin inlet 101, the controller 700 controls the first motor 260 not to move and the second motor 340 to drive the conveying mechanism 300 to move, so that the conveying mechanism 300 drives the banknote to move. Enter the clamping part 201 through the opening 241 and go deep into the clamping part 201 to ensure the clamping force of the clamping part 201 on the banknotes; then control the second motor 340 and the first motor 260 to operate, so that the second motor 340 drives the conveying mechanism 300 to move, and the first motor 260 drives the first conveyor belt 230 to move, and at the same time control the rotation speed of the second motor 340 and the first motor 260, so that the conveying speed of the conveying mechanism 300 for banknotes is greater than the conveying speed of the first conveyor belt 230 for banknotes, so that the conveying mechanism 300 pushes the banknotes to move with the first conveyor belt 230.

[0080] Optionally, the banknote accumulation device further includes a fourth conveying assembly 500, located upstream of the coin inlet 101 along the direction of coin entry. Step S200 may further include: when a second set condition is satisfied, controlling the conveying speed of the conveying mechanism 300 to be greater than the conveying speed of the fourth conveying assembly 500, such that the spacing between two adjacent banknotes is greater than a first set value. Optionally, the second set condition is that the spacing between two adjacent banknotes is detected to be less than the first set value before the banknotes enter the coin inlet 101, or that two adjacent banknotes are detected to partially overlap before the banknotes enter the coin inlet 101, and the overlapping length of the two adjacent banknotes is less than a second set value. This arrangement allows the first banknote to move faster than the next banknote when it contacts the conveying roller 410, driven by the conveying mechanism 300, thereby widening the distance between the two adjacent banknotes. This allows the first conveying assembly 200 to convey the first banknote and stack it in the storage section 600 before conveying the second banknote, thereby improving the reliability of banknote accumulation.

[0081] In summary, the banknote accumulation device provided in the embodiment of the present application includes a frame 100 and a first conveying assembly 200, a conveying mechanism 300 and a storage portion 600 arranged on the frame 100. The frame 100 is provided with a coin inlet 101 for banknotes to enter. Along the coin-entry direction, the first conveying assembly 200 and the conveying mechanism 300 are both located downstream of the coin inlet 101, and the storage portion 600 is located below the first conveying assembly 200; wherein, the first conveying assembly 200 includes two first pulleys 220, a first conveyor belt 230 and at least one blade 240, the two first pulleys 220 are spaced apart along the coin-entry direction, the first conveyor belt 230 is supported by the two first pulleys 220, and the first belt When the wheel 220 rotates, it drives the first conveyor belt 230 to move; the blade 240 is connected to the outer surface of the first conveyor belt 230 to form a clamping portion 201 with an opening 241. When the first conveyor belt 230 moves, the clamping portion 201 moves with the first conveyor belt 230. When the clamping portion 201 is located at the set position above the first conveyor belt 230, the opening 241 is opposite to the coin inlet 101, and the conveying mechanism 300 can drive the banknotes into the clamping portion 201 through the opening 241. The clamping portion 201 is configured to clamp the banknotes and move with the first conveyor belt 230. The storage portion 600 is configured to receive the banknotes that are clamped by the clamping portion 201 to the bottom of the first conveyor belt 230 and then separated from the clamping portion 201. In the embodiment of the present application, after the banknote enters the coin input port 101, the front end of the banknote is inserted into the clamping portion 201 through the opening 241. When the first conveyor belt 230 moves, the clamping portion 201 clamps the banknote and moves with the first conveyor belt 230. When the banknote is above the first conveyor belt 230, the banknote moves along the coin input direction with the first conveyor belt 230. When the banknote turns downward and moves to the bottom of the first conveyor belt 230, the banknote moves along the first conveyor belt 230 in the opposite direction of the coin input direction. In the process of the banknote moving in the opposite direction of the coin input direction, the front end of the banknote is still in the clamping portion 201, and the rear end of the banknote falls downward under the action of its own gravity and contacts the upper surface of the banknotes already stacked in the storage portion 600. As the banknotes continue to move in the opposite direction of the banknote input direction, the front end of the banknotes disengages from the clamping portion 201 and falls downward onto the banknotes already stacked in the storage portion 600. Therefore, during the entire process of stacking the banknotes in the storage portion 600, both ends of the banknotes will not conflict with the ends of the banknotes already stacked in the storage portion 600, so that the banknotes are stacked stably on the previous banknote, thereby avoiding banknotes from being jammed in the banknote input port 101 and improving the neatness of the stacking of banknotes in the storage portion 600. Moreover, the arrangement shape of the first conveyor belt 230 and the blades 240 reduces the size of the occupied space along the banknote stacking direction, and increases the banknote storage space of the storage portion 600 when the size of the banknote accumulation device along the banknote stacking direction is limited.

[0082] The cash recycling processing device 001 provided in the embodiment of the present application includes multiple coin boxes, at least one of which includes the above-mentioned banknote accumulation device, and thus has the advantage of being able to stack banknotes neatly and avoid causing banknotes to be jammed in the coin inlet 101.

[0083] The banknote accumulation control method provided in the embodiment of the present application is applied to the above-mentioned banknote accumulation device, which can effectively solve the problems of messy banknote stacking and easy jamming of banknotes in the coin inlet 101.

Claims

1. A banknote accumulation device, comprising a frame and a first conveying assembly, a conveying mechanism and a storage portion arranged on the frame; The frame is provided with a coin inlet for banknotes to enter, and along the coin inlet direction, the first conveying assembly and the conveying mechanism are both located downstream of the coin inlet, and the storage portion is located below the first conveying assembly; wherein, The first conveying assembly includes two first pulleys, a first conveying belt and at least one blade, the two first pulleys are arranged at intervals along the coin-entry direction, the first conveying belt is supported by the two first pulleys, and the first pulley drives the first conveying belt to move when it rotates; the blade is connected to the outer surface of the first conveying belt to form a clamping portion with an opening, the clamping portion moves with the first conveying belt when the first conveying belt moves, and when the clamping portion is located at a set position above the first conveying belt, the opening is opposite to the coin-entry port; The conveying mechanism is configured to drive the banknotes to enter the clamping portion through the opening, the clamping portion is configured to clamp the banknotes and move along with the first conveying belt, and the storage portion is configured to receive the banknotes that are clamped by the clamping portion to the bottom of the first conveying belt and then separated from the clamping portion.

2. The banknote accumulation device according to claim 1 further includes a baffle arranged on the frame. When the clamping portion is located below the first conveyor belt, the baffle is configured to prevent the banknotes clamped by the clamping portion from continuing to move with the first conveyor belt so as to separate the banknotes from the clamping portion.

3. The banknote stacking device according to claim 1, wherein: The first conveyor belt includes an upper conveying section located above the two first pulleys, and the frame includes a limit plate, which is parallel to the upper surface of the upper conveying section and spaced a set distance apart; the first end of the blade is connected to the outer surface of the first conveyor belt, and the second end of the blade is suspended in the air. When the blade is located above the upper conveying section, the limit plate is configured to limit the distance between the second end of the blade and the upper conveying section.

4. The banknote stacking device according to claim 1, wherein: There are multiple blades, and the multiple blades are arranged in sequence at intervals along the moving direction of the first conveyor belt. The first end of each blade is connected to the outer surface of the first conveyor belt. The multiple blades include adjacent first blades and second blades. Along the moving direction of the first conveyor belt, the second blade is located downstream of the first blade, and the second end of the second blade overlaps the outer surface of the first blade. The first blade, the second blade and the first conveyor belt jointly form the clamping portion, and the opening is formed between the second end of the second blade and the first blade. When the clamping portion is located at the set position, the second end of the second blade is located above the first conveyor belt and adjacent to the first pulley near the coin input port, and the first blade is curved around the first pulley near the coin input port.

5. The banknote stacking device according to claim 1, wherein: The first conveying assembly also includes a fixing member, which is fixedly connected to the first conveying belt, the first end of the blade and one of the fixing members include a limiting groove, the first end of the blade and the other of the fixing members include a limiting portion, and the limiting portion is inserted into the limiting groove.

6. The banknote stacking device according to claim 5, wherein: The fixing member includes a connecting portion and two limiting portions, the two limiting portions are respectively located on both sides of the first conveyor belt along its width direction, the connecting portion is connected between the two limiting portions and is opposite to the outer surface of the first conveyor belt, the blade is located between the connecting portion and the outer surface of the first conveyor belt, and the blade includes two limiting grooves, and the two limiting portions are respectively inserted in the two limiting grooves.

7. The banknote stacking device according to claim 6, wherein: The inner surface of the first conveyor belt is provided with a groove, and the fixing member further comprises a fixing portion, the fixing portion is embedded in the groove, and two ends of the fixing portion are respectively fixedly connected to the two limiting portions.

8. The banknote stacking device according to claim 1, wherein: The conveying mechanism includes two second conveying assemblies, which are respectively arranged on both sides of the first conveying assembly along the axial direction of the first pulley, and the two second conveying assemblies are configured to drive the banknotes into the clamping part and jointly drive the banknotes to move along the first conveyor belt with the clamping part.

9. The banknote stacking device according to claim 8, wherein: The second conveying assembly includes a second conveyor belt and two second pulleys, the second conveyor belt and the first conveyor belt are arranged side by side and at intervals along the axial direction of the first pulley, and the second conveyor belt is supported by the two second pulleys; the banknote accumulation device also includes a first rotating shaft, a second rotating shaft, a first motor and a second motor, the first rotating shaft and the second rotating shaft are parallel and arranged at intervals along the coin input direction, one of the two first pulleys is fixedly mounted on the first rotating shaft, the other of the two first pulleys is rotatably mounted on the second rotating shaft, one of the two second pulleys is fixedly mounted on the second rotating shaft, and the other of the two second pulleys is rotatably mounted on the first rotating shaft; the first motor is transmission-connected to the first rotating shaft, and is configured to drive the first rotating shaft to rotate; the second motor is transmission-connected to the second rotating shaft, and is configured to drive the second rotating shaft to rotate.

10. The banknote stacking device according to claim 1, wherein: The blades are made of metal, polyimide or graphene.

11. A cash recycling processing device, comprising a plurality of coin boxes, at least one of the plurality of coin boxes comprising the banknote accumulation device according to any one of claims 1 to 10.

12. A banknote accumulation control method, applied to the banknote accumulation device according to any one of claims 1 to 10, the banknote accumulation control method comprising: In response to satisfying a set condition, controlling the clamping portion to move to the set position; In response to detecting that a banknote enters the coin input port, controlling the conveying mechanism to move and the first conveying assembly to stop moving or controlling the conveying mechanism and the first conveying assembly to move at a differential speed, so as to drive the banknote to enter the clamping portion; The conveying mechanism and the first conveying assembly are controlled to move so that the banknotes move along with the first conveying belt under the clamping of the clamping portion.

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