A banknote pressing mechanism of a desktop banknote bundling machine

Abstract

The utility model relates to a kind of banknote pressing mechanism of desktop banknote bundling machine, including transmission assembly, lifting assembly, locking assembly and control assembly;Transmission assembly includes DC motor, driving wheel, synchronous belt and silk mother pulley, driving wheel is arranged on the output shaft of DC motor, synchronous belt connects driving wheel with silk mother pulley;Lifting assembly includes trapezoidal screw, trapezoidal screw nut and lower banknote pressing plate, trapezoidal screw nut is fixedly connected with silk mother pulley, trapezoidal screw is rotationally cooperated with trapezoidal screw nut, lower banknote pressing plate is rotationally arranged on the upper end of trapezoidal screw, upper adhesive plate is arranged above lower banknote pressing plate;Locking assembly includes power-off brake device, power-off brake device is installed at the end of DC motor;Control assembly includes grating disc, and grating disc is used to detect the rotational speed of DC motor.

Description

Technical Field

[0001] This utility model relates to a pressing mechanism, specifically to a pressing mechanism for a desktop banknote bundling machine. Background Technology

[0002] Most existing banknote bundling machines use a high-power geared motor for pressing banknotes. The motor drives the lower pressing plate to rise after being decelerated by a worm gear in the gearbox. This structure has a self-locking property and can prevent the banknote bundle from rebounding. However, the disadvantages are high cost, large size, heavy weight, and inconvenient installation. Utility Model Content

[0003] The main purpose of this utility model is to provide a banknote pressing mechanism for a desktop banknote bundling machine, which has a simple structure, light weight, low cost, and is easy to maintain.

[0004] To achieve the above objectives, this utility model provides a banknote pressing mechanism for a desktop banknote bundling machine, including a transmission assembly, a lifting assembly, a locking assembly, and a control assembly;

[0005] The transmission assembly includes a DC motor, a drive pulley, a synchronous belt, and a female pulley. The drive pulley is mounted on the output shaft of the DC motor, and the synchronous belt connects the drive pulley and the female pulley.

[0006] The lifting assembly includes a trapezoidal lead screw, a trapezoidal lead screw nut, and a lower pressing banknote plate. The trapezoidal lead screw nut is fixedly connected to the lead screw nut pulley, and the trapezoidal lead screw is rotatably engaged with the trapezoidal lead screw nut. The lower pressing banknote plate is rotatably mounted on the upper end of the trapezoidal lead screw, and an upper adhesive plate is provided above the lower pressing banknote plate.

[0007] The locking assembly includes a power-off brake device, which is mounted at the end of the DC motor;

[0008] The control components include an optical grating disk, which is used to detect the rotational speed of the DC motor.

[0009] Preferably, the transmission assembly further includes an intermediate pulley, which includes a small intermediate pulley and a large intermediate pulley. The synchronous belt includes a first synchronous belt and a second synchronous belt. The first synchronous belt connects the drive pulley and the large intermediate pulley, and the second synchronous belt connects the small intermediate pulley and the threaded pulley.

[0010] Preferably, the lifting assembly further includes a fixed plate, a thrust bearing, and a deep groove ball bearing. The trapezoidal nut is connected to the nut pulley via a flat key. The thrust bearing is disposed between the trapezoidal nut and the fixed plate. The deep groove ball bearing is sleeved on the outer circle of the trapezoidal nut and connected to the fixed plate via a bearing seat.

[0011] Preferably, the lifting assembly also includes a left guide plate and a right guide plate, and the left and right sides of the pressing banknote plate are respectively connected to the left guide plate and the right guide plate via guide rollers.

[0012] Preferably, the locking assembly further includes a locking nut and an anti-loosening screw. The locking nut secures the threaded pulley to the trapezoidal threaded nut, and the anti-loosening screw is disposed on the locking nut and presses against the end face of the threaded pulley.

[0013] Preferably, when the grating disk of the control component detects that the DC motor speed has decreased to a preset value, the DC motor is de-energized and the power failure brake device is activated; when the binding action is completed, the DC motor is energized and the power failure brake device is released.

[0014] In a further preferred embodiment, the transmission assembly also includes a tensioner pulley, which engages with the timing belt.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model provides a simplified rising and pressing banknote mechanism. It simplifies the reduction gearbox of the high-power geared motor from a worm gear reducer to a synchronous belt drive. The synchronous pulley and trapezoidal screw nut are fixed together, and the rotational transmission is transmitted to the trapezoidal screw, driving the lower pressing plate to rise and press the banknotes. To prevent the banknote bundle from rebounding, a brake locking mechanism is installed on the transmission motor shaft. This utility model has a simple overall structure, is lightweight, low-cost, and easy to maintain. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This utility model relates to a three-dimensional banknote pressing mechanism. Figure 1 ;

[0019] Figure 2 This utility model relates to a three-dimensional banknote pressing mechanism. Figure 2 ;

[0020] Figure 3 This utility model relates to a three-dimensional banknote pressing mechanism. Figure 3 .

[0021] Explanation of reference numerals in the attached figures

[0022] 10. DC motor; 11. Drive pulley; 12. First synchronous belt;

[0023] 13. Large intermediate pulley; 14. Small intermediate pulley; 15. Second timing belt;

[0024] 16. Threaded pulley;

[0025] 21. Trapezoidal lead screw; 22. Trapezoidal lead nut; 23. Lower pressing plate;

[0026] 24. Fixed plate; 25. Thrust bearing; 26. Deep groove ball bearing;

[0027] 27. Left guide plate; 28. Right guide plate; 29. ​​Top adhesive plate;

[0028] 31. Power failure brake device; 32. Locking nut; 33. Anti-loosening screw;

[0029] 41. Guide roller; 42. Grating disk; 43. Tensioner. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] like Figures 1 to 3 As shown, Figures 1 to 3 These are three-dimensional schematic diagrams of the banknote pressing mechanism from different angles. This embodiment provides a banknote pressing mechanism for a desktop banknote bundling machine, including a transmission component, a lifting component, a locking component, and a control component.

[0032] The transmission assembly includes a DC motor 10, an intermediate pulley, a drive pulley 11, a synchronous belt, and a threaded pulley 16. The DC motor 10 is electrically driven, providing power. The drive pulley 11 is mounted on the output shaft of the DC motor 10, and transmits power to the drive pulley 11 and the threaded pulley 16 via the intermediate pulley and the synchronous belt. Specifically, the intermediate pulley includes a small intermediate pulley 14 and a large intermediate pulley 13. The small intermediate pulley 14 is fixedly connected to the large intermediate pulley 13 and is positioned above the large intermediate pulley 13. The synchronous belt includes a first synchronous belt 12 and a second synchronous belt 15. The first synchronous belt 12 connects the drive pulley 11 and the large intermediate pulley 13, and the second synchronous belt 15 connects the small intermediate pulley 14 and the threaded pulley 16. Preferably, the tension of the first synchronous belt 12 and the second synchronous belt 15 is adjusted by using different tensioning pulleys 43.

[0033] The lifting assembly includes a trapezoidal fixed plate 24, a lead screw, a trapezoidal nut 22, a thrust bearing 25, a deep groove ball bearing 26, a pressing plate 23, a left guide plate 27, and a right guide plate 28. Specifically, the trapezoidal nut 22 is fixedly connected to the nut pulley 16 via a flat key, and the nut pulley 16 drives the trapezoidal nut 22 to rotate. The trapezoidal lead screw 21 rotates in conjunction with the trapezoidal nut 22, and the pressing plate 23 is rotatably mounted at the top of the trapezoidal lead screw 21. During the upward movement, the pressing plate 23 rises or falls vertically through guide rollers 41 on its left and right sides in conjunction with the left guide plate 27 and the right guide plate 28, respectively. An upper adhesive plate 29 is provided above the pressing plate 23. The thrust bearing 25 is located between the trapezoidal nut 22 and the fixed plate 24, and is used to withstand the reverse force brought about by the pressing of the coin. The deep groove ball bearing 26 is sleeved on the outer circle of the trapezoidal nut 22 and connected to the fixed plate 24 through a bearing seat. In this embodiment, the trapezoidal screw nut 22 and the trapezoidal screw 21 form a helical transmission pair, which converts the rotational motion of the trapezoidal screw nut 22 into the linear lifting motion of the trapezoidal screw 21, thereby driving the lower pressing plate 23 to rise, and cooperate with the upper adhesive plate 29 to achieve the pressing of the money bundle.

[0034] The locking assembly includes a power failure brake device 31 (i.e., a power failure brake), which is installed at the end of the DC motor 10. Its purpose is to prevent the DC motor 10 from reversing after power failure, causing the coins to loosen.

[0035] In addition, the locking assembly also includes a locking nut 32 and an anti-loosening screw 33. The locking nut 32 secures the threaded pulley 16 to the trapezoidal threaded nut 22, and the anti-loosening screw 33 is located on the locking nut 32 and presses against the end face of the threaded pulley 16. The locking nut 32 achieves axial fastening between the threaded pulley 16 and the trapezoidal threaded nut 22, and the anti-loosening screw 33, through a "tightening groove" method, prevents the locking nut 32 from loosening when the trapezoidal threaded nut 22 rotates in both directions, ensuring transmission stability.

[0036] The control component includes a grating disk 42, which is used to detect the rotational speed of the DC motor 10. When the grating disk 42 detects that the rotational speed of the DC motor 10 has decreased to a preset value, the DC motor 10 is de-energized and the power failure brake device 31 is activated; when the binding action is completed, the DC motor 10 is energized and the power failure brake device 31 is released.

[0037] The workflow of this embodiment is as follows:

[0038] 1. Initial state:

[0039] The pressure plate 23 is in its lowest position, the power failure brake device 31 is in the open state, and the synchronous belt is in the tensioned state.

[0040] 2. Place the bundle of money:

[0041] The operator places the bundle of money to be bundled at the center of the upper surface of the pressure plate 23;

[0042] 3. Cash staking activation:

[0043] When the device is started, the power supply provides power to the DC motor 10. The DC motor 10 rotates forward, driving the drive wheel 11 to rotate. The power is transmitted to the wire nut pulley 16 through the first synchronous belt 12, the intermediate pulley, and the second synchronous belt 15. The wire nut pulley 16 drives the trapezoidal wire nut 22 to rotate, and the trapezoidal screw 21 drives the lower banknote plate 23 to move upward.

[0044] 4. Tightening and locking:

[0045] After the lower banknote plate 23 rises to contact the bundle of money, the motor load increases and the speed decreases as the degree of compression increases. When the grating disk 42 detects that the speed has dropped to the preset speed, the controller cuts off the motor power, the power failure brake device 31 is activated, the motor shaft is locked, and the bundle of money is stably pressed between the upper adhesive plate 29 and the lower banknote plate 23.

[0046] 5. Binding action:

[0047] The external mechanism of the banknote bundling machine performs actions such as feeding, cutting, and heat sealing to complete the bundling of money.

[0048] 6. Reset and withdraw cash:

[0049] After the bundle is completed, the controller supplies power to the motor (reverse power), and at the same time the power failure brake device 31 opens, the motor reverses and drives the lower banknote plate 23 to descend to the initial position; the operator takes out the bundled money, and one banknote pressing cycle ends.

[0050] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A banknote pressing mechanism for a tabletop banknote bundling machine, characterized in that, Includes transmission components, lifting components, locking components, and control components; The transmission assembly includes a DC motor, a drive pulley, a synchronous belt, and a female pulley. The drive pulley is mounted on the output shaft of the DC motor, and the synchronous belt connects the drive pulley and the female pulley. The lifting assembly includes a trapezoidal lead screw, a trapezoidal lead screw nut, and a lower pressing banknote plate. The trapezoidal lead screw nut is fixedly connected to the lead screw nut pulley. The trapezoidal lead screw nut is rotatably engaged with the trapezoidal lead screw nut. The lower pressing banknote plate rotates at the upper end of the trapezoidal lead screw. An upper adhesive plate is provided above the lower pressing banknote plate. The locking assembly includes a power failure brake device, which is installed at the end of the DC motor; The control component includes a grating disk for detecting the rotational speed of the DC motor.

2. The banknote pressing mechanism of a tabletop banknote bundling machine according to claim 1, characterized in that, The transmission assembly also includes an intermediate pulley, which includes a small intermediate pulley and a large intermediate pulley. The synchronous belt includes a first synchronous belt and a second synchronous belt. The first synchronous belt connects the drive pulley and the large intermediate pulley, and the second synchronous belt connects the small intermediate pulley and the threaded pulley.

3. The banknote pressing mechanism of a tabletop banknote bundling machine according to claim 1, characterized in that, The lifting assembly also includes a fixed plate, a thrust bearing, and a deep groove ball bearing. The trapezoidal nut is connected to the nut pulley via a flat key. The thrust bearing is disposed between the trapezoidal nut and the fixed plate. The deep groove ball bearing is sleeved on the outer circle of the trapezoidal nut and connected to the fixed plate via a bearing seat.

4. The banknote pressing mechanism of a tabletop banknote bundling machine according to claim 1, characterized in that, The lifting assembly also includes a left guide plate and a right guide plate, and the left and right sides of the pressing banknote plate cooperate with the left guide plate and the right guide plate respectively through guide rollers.

5. The banknote pressing mechanism of a tabletop banknote bundling machine according to claim 1, characterized in that, The locking assembly also includes a locking nut and an anti-loosening screw. The locking nut secures the nut pulley to the trapezoidal nut, and the anti-loosening screw is disposed on the locking nut and presses against the end face of the nut pulley.

6. The banknote pressing mechanism of a tabletop banknote bundling machine according to claim 1, characterized in that, When the grating disk of the control component detects that the speed of the DC motor has decreased to a preset value, the DC motor is de-energized and the power failure brake device is activated; when the binding action is completed, the DC motor is energized and the power failure brake device is released.

7. The banknote pressing mechanism of a tabletop banknote bundling machine according to claim 2, characterized in that, The transmission assembly also includes a tension pulley, which engages with a timing belt.

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