Tensioning type paper storage mechanism of die-cutting machine

Abstract

The utility model discloses a tensioning type paper storage mechanism of a die-cutting machine, which comprises a paper feeding mechanism and a paper discharging mechanism, the tensioning type paper storage mechanism is further arranged between the paper feeding mechanism and the paper discharging mechanism, and the tensioning type paper storage mechanism comprises a left rack baffle plate, a right rack baffle plate, a swing shaft and a reverse guide roller fixed on the rack baffle plates. The rack baffles on the left side and the right side are each provided with a set of rotatable driving belt wheel and driven belt wheel which are connected through a gear belt, the two sets of driving belt wheels are in transmission connection through a wheel shaft, one end of the wheel shaft is in transmission connection with a transmission motor, the gear belt is further fixedly connected with a middle block, a sliding seat is fixed to the middle block, and the sliding seat is fixedly connected with the transmission motor. The sliding seats are in sliding fit with corresponding guide rails fixed to the rack baffles on the left side and the right side, and the two ends of the swing shaft are connected to the middle blocks on the left side and the right side respectively. The paper stock can be controlled through the position of the swing shaft, and compared with the prior art, the paper feeding device has the advantages of being more flexible, real-time in adjustment and the like.

Description

Technical Field

[0001] This utility model belongs to the field of die-cutting machine technology, and specifically relates to a tensioning paper storage mechanism for a die-cutting machine. Background Technology

[0002] A die-cutting machine is a device used for die-cutting, creasing, and hot stamping sheet materials such as paper and film, and is widely used in the packaging and printing industry. During the operation of a die-cutting machine, the paper feeding mechanism and the paper output mechanism need to work together to transport the paper. However, in actual operation, the roller speeds of the paper feeding and output mechanisms are prone to inconsistencies. When the output mechanism speed is greater than the feeding mechanism speed, the paper between them will be too tight, easily leading to paper stretching, deformation, or even breakage. When the feeding mechanism speed is greater than the output mechanism speed, the paper will become loose and pile up due to insufficient tension. This not only affects the continuity and stability of the die-cutting process but may also cause processing errors and reduce the product qualification rate.

[0003] In the existing technology, to address the problem of unstable paper conveying tension, a simple tension roller structure is often used for adjustment. However, such structures have a limited adjustment range, and each adjustment requires stopping the machine and disassembling the rollers for adjustment. This makes it difficult to adapt to the tension requirements under different conveying speed conditions, resulting in wasted work efficiency and great inconvenience. Utility Model Content

[0004] To solve the above problems, this utility model provides a swing paper storage mechanism for a die-cutting machine, which includes a paper feeding mechanism and a paper output mechanism. The key feature is that a tensioning paper storage mechanism is further provided between the paper feeding mechanism and the paper output mechanism. The tensioning paper storage mechanism includes left and right frame baffles, a reverse guide roller fixed on the frame baffles, and a swing shaft. Each of the left and right frame baffles is provided with a set of rotatable driving pulleys and driven pulleys connected by a gear belt. The two sets of driving pulleys are connected by a wheel axle drive. One end of the wheel axle is connected to a drive motor. A middle block is fixedly connected to the gear belt, and a sliding seat is fixed on the middle block. The sliding seat slides in cooperation with guide rails fixed on the left and right frame baffles. The two ends of the swing shaft are respectively connected to the middle blocks on the left and right sides.

[0005] Furthermore, at least two swing shafts are provided, and they are arranged in parallel.

[0006] The paper output mechanism is also equipped with a paper tension monitoring component at its end. The paper tension monitoring component includes a monitoring roller, a monitoring block, a spring, and a sensor. The paper is wound around the monitoring roller. The shafts at both ends of the monitoring roller have spring holes. The monitoring roller is located inside the monitoring block. The monitoring block contains the spring. One end of the spring is connected to the sensor, and the other end is fitted into the spring hole. The sensor is signal-connected to the processor. The processor is electrically connected to the drive motor and the alarm device.

[0007] Compared with the prior art, this utility model sets up a swing-type paper storage component between the paper feeding mechanism and the paper output mechanism. The swing shaft stores the excess paper. When the speed of the paper output mechanism is greater than that of the paper feeding mechanism, causing the paper to be too tight, the swing shaft will be pulled towards the paper output mechanism. The gear belt moves with the swing shaft and drives the driving pulley and the driven pulley to rotate, so that the swing shaft moves stably along the guide rail, releasing the excess paper, relieving the problem of excessive paper tightness, and avoiding paper damage. When the speed of the paper feeding mechanism is greater than that of the paper output mechanism, the drive motor drives the swing shaft assembly to move towards the paper feeding mechanism, tightening the paper and storing the excess paper, ensuring the paper tension, preventing loosening and accumulation, realizing automatic adjustment and storage of excess paper, and adapting to the needs of different conveying speed conditions.

[0008] In addition, a paper tension monitoring component is added to the end of the paper output mechanism. By using the monitoring roller, spring and sensor, the paper tension pressure is monitored in real time. When the paper output speed is too fast and the paper pressure is abnormal, the sensor transmits the signal to the processor. The processor automatically controls the drive motor to start and adjusts the position of the swing shaft group to release the paper excess until the monitoring roller resets. If it cannot reset, an alarm is triggered to remind the user to stop the machine for adjustment, realizing automatic closed-loop adjustment of tension and improving adjustment accuracy.

[0009] Simultaneously, the springs and sensors on both sides of the monitoring roller can monitor the pressure on both sides of the paper. When the pressure signals on both sides are inconsistent, the processor feeds back the paper offset information, which allows the user to correct it in time and avoid processing errors caused by paper offset, thereby further ensuring processing quality and production continuity. Attached Figure Description

[0010] Figure 1 This is a side view of the present invention after removing one side baffle, where the red line is the direction line of the paper roll;

[0011] Figure 2 This is an overall schematic diagram of the present invention after removing one side baffle;

[0012] Figure 3 This is a schematic diagram of the monitoring roller section after the monitoring block has been removed.

[0013] In the diagram: 1. Paper feeding mechanism; 2. Paper output mechanism; 3. Frame baffle; 4. Swing shaft; 5. Reverse guide roller; 6. Gear belt; 7. Drive pulley; 8. Driven pulley; 9. Axle; 10. Drive motor; 11. Intermediate block; 12. Sliding seat; 13. Guide rail; 14. Monitoring roller; 15. Monitoring block; 16. Spring; 17. Sensor; 18. Spring hole. Detailed Implementation

[0014] like Figure 1-3 As shown, this utility model provides a tension-type paper storage mechanism for a die-cutting machine, including a paper feeding mechanism 1 and a paper output mechanism 2. A tension-type paper storage mechanism is also provided between the paper feeding mechanism 1 and the paper output mechanism 2. The tension-type paper storage mechanism includes left and right frame baffles 3, a swing shaft 4, and a reverse guide roller 5 fixed on the frame baffles 3. The reverse guide roller 5 is used to control the winding direction of the paper roll. Each of the left and right frame baffles 3 is provided with a set of rotatable driving pulleys 7 and driven pulleys 8 connected by a gear belt 6. The two sets of driving pulleys 7 are connected by a wheel axle 9. One end of the wheel axle 9 is connected to a drive motor 10, so that the two sets of driving pulleys 7 and driven pulleys 8 can rotate stably and synchronously. A middle block 11 is also fixedly connected to the gear belt 6. A sliding seat 12 is fixed on the middle block 11. The sliding seat 12 slides in cooperation with the guide rail 13 fixed on the frame baffle 3. The two ends of the swing shaft 4 are respectively connected to the middle blocks 11 on the left and right sides. In this way, the swing shaft 4 can move stably along the guide rail 13 without deviation. At the same time, the paper roll remaining after winding through the swing shaft 4 can be controlled by controlling the position of the swing shaft 4. The closer it is to the paper feeding mechanism 1, the more paper roll remaining is stretched. Therefore, the closer it is to the paper output mechanism 2, the more paper roll remaining is released. The position of the swing shaft 4 can be precisely controlled by the drive motor 10, and can be adjusted in time without stopping the machine.

[0015] Furthermore, there are two swing shafts 4, which are arranged in parallel, so that the paper winding through the swing shafts 4 is longer and more paper can be stored.

[0016] Furthermore, a paper tension monitoring component is also provided at the end of the paper output mechanism 2. The paper tension monitoring component includes a monitoring roller 14, a monitoring block 15, a spring 16, and a sensor 17. The paper is wound around the monitoring roller 14. The shafts at both ends of the monitoring roller 14 are provided with spring holes 18, and the monitoring roller 14 is set inside the monitoring block 15. The monitoring block 15 is provided with a spring 16. One end of the spring 16 is connected to the sensor 17, and the other end is fitted into the spring hole 18 of the shaft of the monitoring roller 14. The sensor 17 is connected to the processor. The processor is electrically connected to the drive motor 10 and the alarm device, respectively. In this way, the pressure state of the paper tension can be monitored in real time to see if it is too tight or misaligned, so that the user can make timely adjustments.

[0017] During operation, the paper extends from the paper feeding roller of the paper feeding mechanism 1, winds around the reverse guide roller 5, and is then mounted on the lower swing shaft 4. At this point, it can continue to wind and extend directly upwards along the side of the swing shaft 4, or it can pass through the reverse guide roller 5 corresponding to other swing shafts 4 and then continue to wind around the corresponding swing shaft 4 before extending to the paper output mechanism 2. Finally, it winds from below and passes through the monitoring roller 14 to complete the conveying process.

[0018] When the speed of the paper output mechanism 2 is greater than that of the paper feeding mechanism 1, causing the paper to be too tight, the paper exerts a pulling force on the swing shaft 4 toward the paper output mechanism 2, causing the swing shaft 4 to move toward the paper output mechanism 2. The intermediate block 11 moves with the swing shaft 4 and pulls the gear belt 6. The gear belt 6 drives the driving pulley 7 and the driven pulley 8 to rotate, so that the swing shaft 4 moves steadily toward the paper output mechanism 2 along the guide rail 13, releasing the excess paper stored on the swing shaft 4, relieving the paper being too tight, and avoiding paper damage.

[0019] When the speed of the paper output mechanism 2 is less than that of the paper feeding mechanism 1, resulting in the paper being too loose, the user can directly start the drive motor 10 and adjust the paper tension in real time through the program. The drive motor 10 drives the drive shaft 9 to rotate, which in turn drives the two active pulleys 7 to rotate synchronously. The active pulleys 7 drive the intermediate block 11 and the swing shaft 4 to move toward the paper feeding mechanism 1 through the gear belt 6, tightening the paper and storing the excess paper on the swing shaft 4 to ensure the paper is in a tight state and prevent it from loosening and accumulating.

[0020] With the addition of a paper tension monitoring component, the above operation becomes more convenient: when the paper feed speed is too fast, causing excessive paper pressure, the paper pushes the monitoring roller 14 towards the spring 16, compressing it. The pressure of the spring 16 on the sensor 17 changes, and the sensor 17 transmits a signal to the processor. The processor controls the drive motor 10 to start, causing the swing shaft 4 to move towards the paper feed mechanism 2 to release the excess paper until the spring 16 and the monitoring roller 14 reset. If the monitoring roller 14 fails to reset, the processor controls the alarm device to issue an audible and visual alarm, reminding the user to stop the machine for adjustment. When the paper feed mechanism speed is 1... When the paper tension is insufficient due to the paper output mechanism 2, the paper pressure on the monitoring roller 14 decreases and it sinks due to gravity. The spring 16 is loosened or even falls, triggering the sensor 17 to send a signal to the processor. The processor controls the drive motor 10 to start, and the drive motor 10 drives the wheel shaft 9 to rotate, which drives the two active pulleys 7 to rotate synchronously. The active pulleys 7 drive the intermediate block 11 and the swing shaft 4 to move towards the paper feeding mechanism 1 through the gear belt 6, tightening the paper until the monitoring roller 14 returns to its position. The excess paper is stored on the swing shaft 4 to ensure the paper tension and prevent loosening and accumulation.

[0021] In addition, when the pressure on the left and right sides of the monitoring roller 14 is different, one side spring 16 transmits a higher pressure signal to the sensor 17, while the other side transmits no pressure signal or a lower pressure signal. After receiving the signal, the processor determines that the paper feed has deviated and controls the alarm device to feed back the information, prompting the user to correct the paper position in time.

[0022] In summary, this invention can adjust the paper tension in real time. Through its paper storage design, it flexibly controls the paper tension, alleviating the problem of excessive paper tightness and preventing paper damage. Furthermore, when the speed of the paper feeding mechanism 1 exceeds that of the paper output mechanism 2, the drive motor 10 drives the swing shaft 4 towards the paper feeding mechanism 1 to tighten the paper and store excess paper, ensuring the paper is in a tight state and preventing loosening and accumulation. This achieves automatic adjustment and storage of excess paper, adapting to the needs of different conveying speeds. Simultaneously, the paper tension monitoring component automatically and promptly adjusts the paper tension and alerts the user to any paper misalignment.

Claims

1. A tensioning paper storage mechanism for a die-cutting machine, comprising a paper feeding mechanism (1) and a paper output mechanism (2), characterized in that... A tensioned paper storage mechanism is also provided between the paper feeding mechanism (1) and the paper output mechanism (2). The tensioned paper storage mechanism includes left and right frame baffles (3), a swing shaft (4), and a reverse guide roller (5) fixed on the frame baffles (3). Each of the left and right frame baffles (3) is provided with a set of rotatable driving pulleys (7) and driven pulleys (8) connected by a gear belt (6). The two sets of driving pulleys (7) are connected by a wheel axle (9). One end of the wheel axle (9) is connected to a drive motor (10). An intermediate block (11) is also fixedly connected to the gear belt (6). A sliding seat (12) is fixed on the intermediate block (11). The sliding seat (12) is slidably engaged with the corresponding guide rail (13) fixed on the left and right frame baffles (3). The two ends of the swing shaft (4) are respectively connected to the intermediate blocks (11) on the left and right sides.

2. The tensioning paper storage mechanism of the die-cutting machine according to claim 1, characterized in that, The swing shaft (4) has at least two shafts, which are arranged in parallel.

3. The tensioning paper storage mechanism of the die-cutting machine according to claim 1, characterized in that, The paper output mechanism (2) is also provided with a paper tension monitoring component at its end. The paper tension monitoring component includes a monitoring roller (14), a monitoring block (15), a spring (16), and a sensor (17). The paper is wound around the monitoring roller (14). The shafts at both ends of the monitoring roller (14) are provided with spring holes (18). The monitoring roller (14) is located inside the monitoring block (15). The monitoring block (15) is provided with the spring (16). One end of the spring (16) is connected to the sensor (17), and the other end is fitted into the spring hole (18). The sensor (17) is connected to the processor. The processor is electrically connected to the drive motor and the alarm device respectively.

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