Constant tension control winding system and industrial printer

Abstract

The utility model provides a constant tension control winding system and an industrial printer. The constant tension control winding system comprises a PLC, a paper collecting servo motor, a magnetic powder brake, an angular displacement sensor, a meter counting proximity switch, a paper feeding transmission roller, a gravity paper storage swing rod set, a tension roller and a paper collecting transmission air swelling shaft. The paper collecting servo motor is in transmission connection with the paper collecting transmission air swelling shaft; the magnetic powder brake is arranged on the tension roller and used for controlling the tension of the tension roller; the angular displacement sensor is arranged around the gravity paper storage swing rod set and used for sensing the swing position of the gravity paper storage swing rod set. The meter counting proximity switch is arranged around the paper feeding transmission roller and is used for recording the rolling length of the printing medium; the PLC is used for controlling the rotating speed and tension of the paper collecting servo motor to achieve constant-tension winding according to the received signal and the running speed of the printing main shaft. The system can meet the paper storage requirement of the myriameter industrial printer and achieve constant-tension rolling of the myriameter industrial printer.

Description

Technical Field

[0001] This utility model relates to the field of industrial printers, specifically to a constant tension control winding system and an industrial printer. Background Technology

[0002] In industrial printers, especially in the take-up system of 10,000-meter industrial printers, tension control during take-up is particularly important. Constant tension control is crucial to ensuring that the printing media is evenly wound by the take-up roller. Especially as the printing media on the take-up roller is continuously wound, the diameter of the take-up roller gradually increases. If the tension is too low, defects such as misaligned and wrinkled printing media will occur; if the tension is too high, defects such as uneven winding of the printing media on the take-up roller and uneven end faces of the take-up roller will occur.

[0003] To ensure constant tension winding, utility model patent CN211569616U discloses a constant tension control device for printing press winding, including a swing arm, guide rollers, a position sensor, a magnet, and a support cylinder. The position sensor is mounted directly opposite the magnet via a bracket, and the support cylinder supports the upper part of the swing arm. An unwinding device is located on the left side of the printing press, and multiple sets of synchronous printing devices are located to the right of the unwinding device. These sets of synchronous printing devices are synchronously connected via synchronous couplings. A back coating device is located to the right of the multiple sets of synchronous printing devices. Above and beyond the back coating device, an oven and a set of guide rollers are located. The roll of paper passes through the oven above the unwinding device, where the ink pattern and adhesive on the roll are baked and cured. The roll of paper then passes through the guide rollers on the swing arm, winding to the right and then downwards and to the left onto the printing paper roll mounted on the winding device. A position sensor and a magnet are installed at the lower end of the swing arm. When the tension changes, the position of the swing arm and the magnet relative to the position sensor changes. At this time, a changing analog signal is transmitted to the PLC for calculation. The calculation result is output to the analog input terminal of the frequency converter, thereby changing the frequency of the frequency converter and the torque of the variable frequency motor to ensure constant winding tension. However, because this device directly adjusts the printing medium, it is not suitable for constant tension winding of industrial printers that require paper storage, such as those with tens of thousands of meters of paper. Utility Model Content

[0004] To meet the paper storage requirements of 10,000-meter industrial printers and achieve constant tension winding of 10,000-meter industrial printers, the technical solution adopted by this utility model is: a constant tension control winding system, including a PLC controller, a paper delivery servo motor, a magnetic powder brake, an angular displacement sensor, a meter counting proximity switch, and a paper feeding drive roller, a gravity paper storage swing arm group, a tension roller, and a paper delivery drive air shaft arranged sequentially along the winding path of the printing medium.

[0005] The paper delivery servo motor is connected to the paper delivery transmission air shaft for power winding of the printing medium.

[0006] The magnetic powder brake is mounted on the tension roller and is used to control the tension of the tension roller;

[0007] The angular displacement sensor is arranged around the gravity paper storage pendulum arm assembly to sense the swing position of the gravity paper storage pendulum arm assembly;

[0008] The metering proximity switch is located around the paper feed drive roller and is used to record the winding length of the printing medium.

[0009] The PLC controller is connected to the paper delivery servo motor, the magnetic powder brake, the angular displacement sensor, and the metering proximity switch, respectively. It is used to control the speed and tension of the paper delivery servo motor to achieve constant tension winding based on the received signals and the running speed of the printing spindle.

[0010] Based on the above, in order to correct the printing medium during the winding process, a paper storage and correction mechanism is also provided between the gravity paper storage swing arm assembly and the tension roller.

[0011] Based on the above, a steering roller is also provided around the tension roller and the gravity paper storage swing arm assembly.

[0012] Based on the above, the PLC controller is also used to convert the printing medium winding length recorded by the meter proximity switch into the paper roll diameter.

[0013] Based on the above, the PLC controller is used to control the running speed and tension of the paper take-up servo motor to achieve constant tension winding by combining the obtained swing position of the gravity paper storage arm group and the paper take-up roll diameter with the running speed of the printing spindle.

[0014] Based on the above, a paper guide roller is also provided at the front end of the paper feeding drive roller, which is used to transfer the printing medium to the paper feeding drive roller.

[0015] Based on the above, a paper feeding clamping roller is also provided at the front end of the paper delivery drive air shaft.

[0016] This utility model also provides an industrial printer equipped with the above-mentioned constant tension control winding system.

[0017] This utility model has substantial features and advancements compared to existing technologies. Specifically, the constant tension control winding system and industrial printer provided by this utility model, by installing servo motors on the paper take-up air shaft and the paper feed drive roller respectively, setting a paper storage mechanism on the 10,000-meter industrial printer, installing an angular displacement sensor on the gravity paper storage swing arm group of the paper storage mechanism, installing a magnetic powder brake on the tension roller, and installing a meter-counting proximity switch on the servo motor of the paper feed drive roller, can convert the relationship between the winding length and the diameter of the paper take-up roller into the paper roll diameter, thereby enabling timely transmission of the swing position of the gravity paper storage swing arm group and the paper roll diameter to the PLC controller.

[0018] Once the PLC controller acquires the swing position of the gravity paper storage arm assembly and the take-up roll diameter, it controls the running speed of the take-up servo motor and the tension of the tension roller based on these parameters, along with the operating speed of the printing spindle. This achieves an organic integration of tension adjustment and the paper storage system, allowing it to fully adapt to the dynamic adaptive adjustment of speed and tension in the 10,000-meter industrial printer's take-up system, maintaining a stable speed and constant tension during take-up.

[0019] Furthermore, the paper storage mechanism allows for the collection and storage of media printed by the 10,000-meter printer. This ensures that when adjusting the speed and tension of the paper delivery servo motor, fluctuations are not transmitted to the printing platform of the 10,000-meter printer, thus avoiding any impact on the printing accuracy of the printer. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the constant tension control winding system and industrial printer provided by this utility model.

[0021] In the diagram: 1. Guide roller; 2. Paper feed drive roller; 3. Gravity paper storage swing arm assembly; 4. Angular displacement sensor; 5. Paper storage correction mechanism; 6. Tension roller; 7. Paper feed clamping roller; 8. Paper take-up drive air shaft; 9. Meter counting proximity switch; 10. Magnetic powder brake; 11. Steering roller. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0023] Example 1

[0024] This embodiment provides a constant tension controlled winding system, such as... Figure 1 As shown, it includes a PLC controller, a paper delivery servo motor, a magnetic powder brake 10, an angular displacement sensor 4, a meter-counting proximity switch 9, and a paper feeding drive roller 2, a gravity paper storage swing arm group 3, a tension roller 6, and a paper delivery drive air shaft 8 arranged sequentially along the printing medium winding path.

[0025] The paper delivery servo motor is connected to the paper delivery drive air shaft 8 for power winding of the printing medium. The magnetic powder brake 10 is mounted on the tension roller 6 to control the tension of the tension roller 6. The angular displacement sensor 4 is located around the gravity paper storage swing arm assembly 3 to sense the swing position of the gravity paper storage swing arm assembly 3. The meter counting proximity switch 9 is located around the paper feed drive roller 2 to record the winding length of the printing medium.

[0026] The PLC controller is connected to the paper delivery servo motor, the magnetic powder brake 10, the angular displacement sensor 4, and the metering proximity switch 9 respectively. It is used to control the speed of the paper delivery servo motor and the tension of the tension roller according to the received signals and the running speed of the printing spindle to achieve constant tension winding.

[0027] The PLC controller is also used to convert the printing medium winding length recorded by the meter-counting proximity switch into the paper roll diameter. Based on the obtained swing position of the gravity paper storage arm assembly and the paper roll diameter, the PLC controller, in conjunction with the operating speed of the printing spindle, controls the operating speed and tension of the paper roll servo motor to achieve constant tension winding.

[0028] Example 2

[0029] This embodiment provides a constant tension control winding system. The main difference from Embodiment 1 is that, in this embodiment, a steering roller 11 is also provided around the tension roller 6 and the gravity paper storage swing arm assembly 3. A paper feeding clamping roller 7 is also provided at the front end of the paper delivery drive air shaft 8.

[0030] Example 3

[0031] This embodiment provides a constant tension control winding system. The main difference from Embodiment 1 is that, in this embodiment, in order to correct the printing medium during the winding process, a paper storage and correction mechanism 5 is also provided between the gravity paper storage swing arm group 3 and the tension roller 6.

[0032] Example 4

[0033] This embodiment provides a constant tension control winding system. The main difference from Embodiment 1 is that in this embodiment, a paper guide roller 1 is also provided at the front end of the paper feeding drive roller 2. The paper guide roller 1 is used to transfer the printing medium to the paper feeding drive roller 2.

[0034] Example 5

[0035] This utility model provides an industrial printer equipped with a constant tension control winding system provided in Embodiment 1, Embodiment 2, or Embodiment 3.

[0036] The PLC controller also features manual and automatic modes. The manual mode allows for manual control of the winding motor and hydraulic system, enabling individual actions such as forward and reverse rotation, winding hydraulic extension, winding liquid compression, paper pressing hydraulic rise, and paper pressing hydraulic fall.

[0037] In automatic mode, printing and rewinding are linked; rewinding automatically starts when printing begins. During rewinding, the roll diameter and length in meters are automatically calculated, and the speed and tension are automatically adjusted based on the real-time roll diameter to achieve speed tracking and stable tension.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A constant tension controlled winding system, characterized in that: It includes a PLC controller, a paper delivery servo motor, a magnetic powder brake, an angular displacement sensor, a meter-counting proximity switch, and a paper feeding drive roller, a gravity paper storage swing arm assembly, a tension roller, and a paper delivery drive air shaft arranged sequentially along the winding path of the printing medium. The paper delivery servo motor is connected to the paper delivery transmission air shaft for power winding of the printing medium. The magnetic powder brake is mounted on the tension roller and is used to control the tension of the tension roller; The angular displacement sensor is arranged around the gravity paper storage pendulum arm assembly to sense the swing position of the gravity paper storage pendulum arm assembly; The metering proximity switch is located around the paper feed drive roller and is used to record the winding length of the printing medium. The PLC controller is connected to the paper delivery servo motor, the magnetic powder brake, the angular displacement sensor, and the metering proximity switch, respectively. It is used to control the speed and tension of the paper delivery servo motor to achieve constant tension winding based on the received signals and the running speed of the printing spindle.

2. The constant tension control winding system according to claim 1, characterized in that: A paper correction mechanism is also provided between the gravity paper storage swing arm assembly and the tension roller.

3. The constant tension control winding system according to claim 1 or 2, characterized in that: A steering roller is also provided around the tension roller and the gravity paper storage swing arm assembly.

4. The constant tension control winding system according to claim 1, characterized in that: The PLC controller is also used to convert the printing medium winding length recorded by the meter proximity switch into the paper roll diameter.

5. The constant tension control winding system according to claim 4, characterized in that: The PLC controller is used to control the running speed and tension of the paper take-up servo motor to achieve constant tension winding based on the obtained swing position of the gravity paper storage arm group and the paper take-up roll diameter, combined with the running speed of the printing spindle.

6. The constant tension controlled winding system according to claim 1, 2, 4, or 5, characterized in that: The front end of the paper feed drive roller is also provided with a paper guide strip roller, which is used to transfer the printing medium to the paper feed drive roller.

7. The constant tension control winding system according to claim 1, 2, 4, or 5, characterized in that: The front end of the paper delivery drive air shaft is also equipped with a paper feeding clamping roller.

8. An industrial printer, characterized in that: The industrial printer is equipped with a constant tension control winding system as described in any one of claims 1 to 7.

Images