A flattening device for preventing plastic banknote surface traces from rebounding

Abstract

This utility model discloses a flattening device to prevent the rebound of marks on plastic banknotes. It includes a main body, a transport mechanism, an adjustment mechanism, and a running mechanism. The transport mechanism includes a support frame and a conveyor belt. The adjustment mechanism includes an adjusting motor and a lead screw. The running mechanism includes a cylinder and a mounting frame. Through the coordinated action of these mechanisms, the negative pressure adsorption of this device ensures that banknotes are firmly held on the conveyor belt during transport, preventing slippage, falling, or deviation even at high speeds. Furthermore, the adjustable flattening device can flexibly adjust the flattening pressure according to the different thicknesses, materials, or stacking quantities of banknotes. This ensures uniform flattening even when multiple banknotes are stacked together, preventing the rebound of banknote marks due to excessive or insufficient pressure.

Description

Technical Field

[0001] This utility model relates to the field of banknote sorting technology, specifically a flattening device to prevent marks on plastic banknotes from rebounding. Background Technology

[0002] A flattening device to prevent the rebound of marks on plastic banknotes involves a specialized device or mechanism for addressing the "rebound" problem that easily occurs in plastic banknotes (such as polymer banknotes) during the flattening process due to material memory (the tendency to return to the original shape after deformation).

[0003] First, without adsorption, banknotes are prone to shifting due to air resistance, uneven weight distribution, and other factors, which may cause the machine to jam or the banknotes to be mispositioned.

[0004] Secondly, equipment without an adjustable flattening device may not be able to adapt to the different thicknesses and structures of banknotes, resulting in uneven flattening effects. This is especially true when stacking multiple banknotes, which can easily cause localized indentations or misalignments.

[0005] Finally, without pretreatment, banknotes may be subjected to greater pressure or friction during the flattening process due to issues such as bending, static electricity, or uneven surfaces, resulting in damage to the banknote surface, especially new banknotes or banknotes with high quality requirements. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a flattening device to prevent the rebound of marks on the surface of plastic banknotes, thereby solving the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a flattening device for preventing the rebound of marks on the surface of plastic banknotes, comprising a main body, a transport mechanism, an adjustment mechanism, and a running mechanism. The transport mechanism includes a support frame and a conveyor belt. A drive motor is fixedly installed on the support frame, and a drive roller is installed on the drive motor. Both ends of the conveyor belt are respectively installed on the drive roller. The adjustment mechanism includes an adjustment motor and a lead screw. The adjustment motor is fixedly installed on the main body, and one end of the lead screw is fixedly installed on one end of the adjustment motor. A lifting frame is installed inside the main body, and a lifting platform is installed inside the lifting frame. The lifting platform is slidably connected to the lifting frame and cooperates with the lead screw.

[0010] Preferably, the operating mechanism includes a cylinder and a mounting frame. The cylinder is fixedly installed in the lifting platform, and the mounting frame is fixedly connected to the cylinder. A main pressure plate and an auxiliary pressure plate are installed at the bottom of the mounting frame, and the main pressure plate and the auxiliary pressure plate are respectively connected to the conveyor belt.

[0011] In a further preferred embodiment, the support frame is equipped with an adsorption rack, and a fan is fixedly installed on the adsorption rack to facilitate the adsorption of banknotes.

[0012] In a further preferred embodiment, the conveyor belt is provided with placement slots and ventilation holes, which are distributed in a curved array on the conveyor belt to facilitate the adsorption of banknotes.

[0013] In a further preferred embodiment, the lifting frame is provided with a sliding groove, and a roller is installed on the lifting platform. The roller is connected to the sliding groove to facilitate the lifting and lowering of the lifting platform within the lifting frame.

[0014] In a further preferred embodiment, the lifting platform is provided with a threaded hole, which is connected to a lead screw to facilitate stable lifting and sliding of the lifting platform within the lifting frame.

[0015] In a further preferred embodiment, the main body is provided with an inlet and an outlet, which are respectively located on both sides of the main body to facilitate the placement and retrieval of banknotes.

[0016] In a further preferred embodiment, the adsorption rack is provided with a connecting pipe, one end of which is provided with a connecting frame, and the fan is fixedly installed in the connecting frame to facilitate the stable operation of the adsorption rack.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a flattening device to prevent the rebound of marks on the surface of plastic banknotes, which has the following beneficial effects:

[0019] In this invention, by setting up a transport mechanism, the negative pressure adsorption of the device, with the cooperation of components such as the support frame and the conveyor belt, ensures that the banknotes are firmly held on the conveyor belt during the transport process. Even when moving at high speed, they will not slip, fall or deviate. Furthermore, because the negative pressure adsorption can evenly and tightly adhere the banknotes to the conveyor belt, it avoids excessive bending or wrinkling of the banknotes during the movement. Especially before flattening, it can reduce the damage to the banknotes caused by external forces.

[0020] In this invention, by setting an adjustment mechanism, the adjustable flattening device can flexibly adjust the flattening pressure according to the different thicknesses, materials or stacking quantities of banknotes under the cooperation of components such as the adjusting motor and lead screw. In this way, even if multiple banknotes are stacked together, the flattening effect can be guaranteed to be uniform, and the banknote surface marks will not rebound due to excessive or insufficient pressure.

[0021] In this invention, by setting up an operating mechanism, the pretreatment (such as preheating, static electricity elimination, etc.) of the device can soften the banknote in advance through the cooperation of components such as cylinders and mounting frames, making it easier to deform and restore flatness when flattened, and reducing the occurrence of rebound and uneven indentation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a flattening device for preventing the rebound of marks on the surface of plastic banknotes according to the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;

[0024] Figure 3 This is an exploded view of the overall structure of this utility model;

[0025] Figure 4 This is an exploded view of the operating mechanism in this utility model;

[0026] Figure 5 This is an exploded view of the transportation mechanism in this utility model.

[0027] In the diagram: 1. Main body; 2. Support frame; 3. Conveyor belt; 4. Drive motor; 5. Drive roller; 6. Adjusting motor; 7. Lead screw; 8. Lifting frame; 9. Lifting platform; 10. Cylinder; 11. Mounting frame; 12. Main pressure plate; 13. Auxiliary pressure plate; 14. Adsorption frame; 15. Fan; 16. Placement slot; 17. Ventilation hole; 18. Sliding slot; 19. Roller; 20. Threaded hole; 21. Inlet; 22. Outlet; 23. Connecting pipe; 24. Connecting frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] Please see Figures 1-5A flattening device for preventing the rebound of marks on the surface of plastic banknotes includes a main body 1, a transport mechanism, an adjustment mechanism, and an operating mechanism. The transport mechanism includes a support frame 2 and a conveyor belt 3. A drive motor 4 is fixedly installed on the support frame 2, and a drive roller 5 is installed on the drive motor 4. Both ends of the conveyor belt 3 are respectively installed on the drive roller 5. The adjustment mechanism includes an adjustment motor 6 and a lead screw 7. The adjustment motor 6 is fixedly installed on the main body 1, and one end of the lead screw 7 is fixedly installed on one end of the adjustment motor 6. A lifting frame 8 is installed inside the main body 1, and a lifting platform 9 is installed inside the lifting frame 8. The lifting platform 9 is slidably connected to the lifting frame 8 and cooperates with the lead screw 7.

[0031] In this embodiment, the transport mechanism includes a support frame 2 and a conveyor belt 3. In use, banknotes can be placed in the placement slot 16 on the conveyor belt 3. Then, the drive motor 4 drives the drive roller 5 to rotate in the support frame 2, so that the banknotes can be transported on the conveyor belt 3. At this time, the fan 15 at the bottom of the suction frame 14 installed in the support frame 2 starts to run, and negative pressure is transmitted to the suction frame 14 through the connecting frame 24 and the connecting pipe 23, so that the banknotes can be firmly fixed on the conveyor belt 3, thus completing the stable transport of banknotes.

[0032] In this embodiment, the adjustment mechanism includes an adjustment motor 6 and a lead screw 7. In use, different pressures can be applied according to the type, thickness, or quantity of banknotes. This requires changing the height of the lifting platform 9 in the lifting frame 8. The adjustment motor 6 drives the lead screw 7 to rotate. When the threaded hole 20 on the lifting platform 9 engages with the threaded lead screw 7, it begins to slide up and down in the lifting frame 8. The roller 19 installed on the lifting platform 9 begins to slide in the sliding groove 18 of the main body 1, making the sliding of the lifting platform 9 smoother.

[0033] In this embodiment, the operating mechanism includes a cylinder 10 and a mounting frame 11. During use, the stroke of the cylinder 10 is fixed and cannot be changed to maintain a certain pressure. At this time, under the action of the lifting platform 9, the cylinder 10 adjusts its position and drives the mounting frame 11 directly, so that the main pressure plate 12 and the auxiliary pressure plate 13 in the mounting frame 11 fit and squeeze the banknotes in the placement slot 16. Then the drive motor 4 drives the conveyor belt 3 to move one position of the placement slot 16. Then the cylinder 10 is driven again, and so on, so that the banknotes can be flattened three times. The main pressure plate 12 is used to physically squeeze and heat the banknotes, while the auxiliary pressure plate 13 sprays a protective liquid onto the banknotes to facilitate the smooth progress of the banknote flattening process.

[0034] Example 2:

[0035] In summary, during use, banknotes are first placed into the placement slot 16 on the conveyor belt 3. Then, the drive motor 4 directly drives the drive roller 5 to rotate within the support frame 2, allowing the banknotes to be transported on the conveyor belt 3. At this time, the fan 15 at the bottom of the suction frame 14 installed in the support frame 2 starts operating, transmitting negative pressure to the suction frame 14 through the connecting frame 24 and connecting pipe 23, firmly fixing the banknotes to the conveyor belt 3 and completing stable banknote transport. Subsequently, different pressures can be applied according to the type, thickness, or quantity of the banknotes. Since the pressure stroke of the cylinder 10 is fixed, the height of the lifting platform 9 within the lifting frame 8 needs to be adjusted. The adjusting motor 6 drives the lead screw 7 to rotate. With the threaded hole 20 on the lifting platform 9 engaging with the threaded lead screw 7, the banknotes begin to move... The lifting frame 8 slides up and down, and the roller 19 installed on the lifting platform 9 begins to slide in the sliding groove 18 of the main body 1, making the sliding of the lifting platform 9 smoother. When the banknotes are transported to the bottom of the main pressure plate 12 and the auxiliary pressure plate 13, the cylinder 10 adjusts its position under the action of the lifting platform 9. At this time, the cylinder 10 is driven to directly push the mounting frame 11, so that the main pressure plate 12 and the auxiliary pressure plate 13 in the mounting frame 11 fit and squeeze the banknotes in the placement groove 16. Then the drive motor 4 drives the conveyor belt 3 to move one position of the placement groove 16. Then the cylinder 10 is driven again, and so on, so that the banknotes can be flattened three times. The main pressure plate 12 is used to physically squeeze and heat the banknotes, while the auxiliary pressure plate 13 sprays a protective liquid onto the banknotes to facilitate the smooth progress of the banknote flattening process.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flattening device for preventing the rebound of marks on the surface of plastic banknotes, comprising a main body (1), a transport mechanism, an adjustment mechanism, and an operating mechanism, characterized in that, The transport mechanism includes a support frame (2) and a conveyor belt (3). A drive motor (4) is fixedly installed on the support frame (2). A drive roller (5) is installed on the drive motor (4). Both ends of the conveyor belt (3) are respectively installed on the drive roller (5). The adjustment mechanism includes an adjustment motor (6) and a lead screw (7). The adjustment motor (6) is fixedly installed on the main body (1). One end of the lead screw (7) is fixedly installed on one end of the adjustment motor (6). A lifting frame (8) is installed inside the main body (1). A lifting platform (9) is installed inside the lifting frame (8). The lifting platform (9) is slidably connected to the lifting frame (8) and cooperates with the lead screw (7).

2. The flattening device for preventing the rebound of marks on the surface of plastic banknotes according to claim 1, characterized in that: The operating mechanism includes a cylinder (10) and a mounting bracket (11). The cylinder (10) is fixedly installed in the lifting platform (9). The mounting bracket (11) is fixedly connected to the cylinder (10). A main pressure plate (12) and an auxiliary pressure plate (13) are installed at the bottom of the mounting bracket (11). The main pressure plate (12) and the auxiliary pressure plate (13) are respectively connected to the conveyor belt (3).

3. The flattening device for preventing the rebound of marks on the surface of plastic banknotes according to claim 2, characterized in that: An adsorption rack (14) is installed on the support frame (2), and a fan (15) is fixedly installed on the adsorption rack (14).

4. The flattening device for preventing the rebound of marks on the surface of plastic banknotes according to claim 3, characterized in that: The conveyor belt (3) is provided with placement grooves (16) and ventilation holes (17), which are distributed in a curved array on the conveyor belt (3).

5. The flattening device for preventing the rebound of marks on the surface of plastic banknotes according to claim 2, characterized in that: The lifting frame (8) is provided with a sliding groove (18), and the lifting platform (9) is equipped with a roller (19), which is connected to the sliding groove (18).

6. The flattening device for preventing the rebound of marks on the surface of plastic banknotes according to claim 5, characterized in that: The lifting platform (9) is provided with a threaded hole (20), which is connected to the lead screw (7).

7. The flattening device for preventing the rebound of marks on the surface of plastic banknotes according to claim 1, characterized in that: The main body (1) is provided with an inlet (21) and an outlet (22), which are respectively located on both sides of the main body (1).

8. The flattening device for preventing the rebound of marks on the surface of plastic banknotes according to claim 3, characterized in that: The adsorption rack (14) is provided with a connecting pipe (23), and a connecting frame (24) is provided at one end of the connecting pipe (23). The fan (15) is fixedly installed in the connecting frame (24).

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