Thermal transfer film rolling tension control system

Abstract

The invention relates to the technical field of winding tension control systems, in particular to a heat transfer film winding tension control system. The control system is used for controlling the working state of the winding machine. The winding machine comprises a leading-in roller, a tension roller and a winding roller. The control system comprises a film winding module, a tension signal acquisition module, a servo motor, a servo driver, a motor position detection module and an interruption module. The negative feedback module is electrically connected between the thin film winding module and the tension signal acquisition module; the negative feedback module program is provided with a constant winding tension range; and the negative feedback module receives and analyzes the tension signal from the tension signal acquisition module, and sends a winding adjustment signal to the film winding module. Through the arrangement of the negative feedback module, the constant winding tension of the heat transfer printing film is achieved, the production efficiency of enterprises and the product quality are improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of winding tension control systems, in particular to a thermal transfer film winding tension control system. Background Art

[0002] Thermal transfer film refers to a special functional printed film that has a pattern pre-printed on the surface of the film. Under the combined action of heat and pressure, the pattern is separated from the carrier film and firmly attached to the surface of the substrate. In the process of producing thermal transfer film with a blow molding machine, the control of winding tension is particularly important. Too much winding tension will make the film less ductile or even tear, while too little winding tension will cause the film to curl and wrinkle, seriously affecting production efficiency and product quality.

[0003] Since the winding tension control system of the thermal transfer film is a complex system with nonlinearity, strong coupling and many interferences, the winding tension control effect of the conventional winding tension control system is not ideal, and it is impossible to adjust the film winding roller movement in real time, resulting in the winding tension of the thermal transfer film being unable to be in a constant state, which seriously affects the production quality of the product, increases the company's production costs and causes unnecessary waste of raw materials. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a thermal transfer film winding tension control system to achieve constant winding tension of the thermal transfer film and improve enterprise production efficiency and product quality.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a thermal transfer film winding tension control system, which is used to control the working state of a winding machine, wherein the winding machine comprises an introduction roller, a tension roller and a winding roller; the control system comprises a film winding module, a tension signal acquisition module, a servo motor, a servo driver, a motor position detection module, and an interrupt module; the tension signal acquisition module collects the winding tension signal of the hot coil stamp in the film winding module; the servo motor drives the winding roller of the film winding module to move; the servo driver servo drives the servo motor to operate; the motor position detection module collects and sends and receives the position data and speed data of the servo motor; the interrupt module interrupts the sending and receiving signals sent by the film winding module and the motor position detection module; It also includes a negative feedback module, which is electrically connected between the film winding module and the tension signal acquisition module; the negative feedback module program is set with a constant winding tension range; the negative feedback module receives and analyzes the tension signal from the tension signal acquisition module, and sends an adjustment winding signal to the film winding module.

[0006] The present invention cooperates with a film winding module, a tension signal acquisition module, a negative feedback module, and an interrupt module. The tension signal acquisition module can collect the thermal transfer film winding tension signals of the film winding module in real time, and send these signals to the negative feedback adjustment module. The negative feedback module receives and analyzes the thermal transfer film winding tension signals, and feeds back the winding tension signals that are not within the constant winding tension range to the film winding module in real time, driving the film winding module to adjust the winding tension in real time, thereby ensuring that the winding tension value of the thermal transfer film is constant, and improving product production efficiency and product quality.

[0007] Furthermore, the servo motor is electrically connected to the film winding module, and the servo motor servo drives the winding roller of the film winding module to move; the tension signal acquisition module is electrically connected to the film winding module, and the tension signal acquisition module acquires the thermal transfer film winding tension signal of the film winding module; the film winding module is electrically connected to the interruption module.

[0008] Furthermore, a negative feedback module is electrically connected between the film winding module and the tension signal acquisition module. The negative feedback module receives and analyzes the thermal transfer film winding tension value of the tension signal acquisition module. When the winding tension signal is not within the set range, the negative feedback module sends a continuous winding signal to the film winding module to ensure that the thermal transfer film winding tension value remains constant.

[0009] Furthermore, the motor position detection module includes a motor position sensor and a transceiver balancing circuit; the motor position sensor is electrically connected to the servo motor; the motor position sensor is electrically connected to the transceiver balancing circuit. The motor position sensor is used to collect position data and speed data of the servo motor, and transmit and receive these data to the transceiver balancing circuit, so as to subsequently control the operation of the servo motor in real time according to the action of the thermal transfer film winding roller.

[0010] Furthermore, it also includes a controller module; the controller module controls the action of the servo driver; the transceiver balancing circuit is electrically connected to the controller module through an interrupt module. The transceiver balancing circuit can send the position data and speed data of the servo motor collected by the motor position sensor to the controller module through the interrupt module for processing, and the controller module sends a corresponding control signal to the servo driver according to the received position data and speed data of the servo motor, so that the servo motor can accurately servo-drive the winding roller of the film winding module, thereby ensuring that the winding tension of the thermal transfer film is controlled and kept constant.

[0011] Furthermore, it also includes a wireless control terminal; the wireless control terminal is electrically connected to the controller module; the wireless control terminal sends a start, pause, or stop control signal to the controller module. The wireless control terminal serves as a control master switch to regulate the working signal of the controller module. The use of a wireless control terminal can effectively reduce the wiring cost of the factory production site, which is beneficial for subsequent maintenance and modification.

[0012] Furthermore, the servo driver is electrically connected to the servo motor; an encoder is also provided between the servo driver and the servo motor. The signal output by the servo driver can drive the servo motor to rotate, and the matching encoder can provide real-time feedback of the rotation speed of the servo motor.

[0013] Specifically, when the servo driver cooperates with the servo motor to perform tension control, during the initial winding process of the thermal transfer film, the servo driver drives the servo motor to wind quickly. As the winding diameter increases, the servo driver controls the servo motor to wind, and the winding speed gradually slows down. When the winding length reaches the specified length, the controller module drives the thermal transfer film to stop winding.

[0014] Furthermore, the main circuit inside the servo driver uses a high-speed switch device and is equipped with a noise filter. The noise filter can well filter the noise from the power grid line to ensure that the servo driver has a good grounding line.

[0015] Furthermore, the servo motor adopts a Japanese YASKAWA full-data AC servo motor; the stator winding and core heat sink of this servo motor have fast response capability and small size and weight, and are particularly suitable for use in a winding tension control system.

[0016] Furthermore, the servo driver is provided with three freely switchable control modes, namely speed control mode, position control mode and matrix control mode. Specifically, when the servo motor works in the matrix control mode, no matter how the speed of the processed thermal transfer film changes, the thermal transfer film can be ensured to be smoothly rolled up; if the speed of the thermal transfer film processed by the previous level is fast, the servo motor will speed up the winding speed to ensure that the thermal transfer film has a certain winding tension; if the speed of the thermal transfer film processed by the previous level is too slow, the servo motor will slow down the winding speed to avoid stretching the thermal transfer film and affecting the uniform thickness of the film. By setting the servo driver to work in the torque mode, the constant winding tension value of the thermal transfer film is achieved.

[0017] Beneficial Effects The present invention cooperates with a film winding module, a tension signal acquisition module, a negative feedback module, and an interrupt module. The tension signal acquisition module can collect the thermal transfer film winding tension signal of the film winding module in real time, and send these signals to the negative feedback adjustment module. The negative feedback module receives and analyzes the thermal transfer film winding tension signal, and feeds back the winding tension signal to the film winding module in real time, driving the film winding module to adjust the winding tension in real time, thereby ensuring that the winding tension value of the thermal transfer film is constant, improving product production efficiency and product quality, and saving raw material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the control principle of the winding tension control system in an embodiment of the present invention; Figure 2 It is a schematic diagram of the winding operation of the winder in an embodiment of the present invention.

[0019] In the attached drawings, 1. film winding module; 2. tension signal acquisition module; 3. negative feedback module; 4. servo motor; 5. servo driver; 51. encoder; 52. noise filter; 6. motor position detection module; 61. motor position sensor; 62. transceiver balancing circuit; 7. interrupt module; 8. controller module; 9. wireless control terminal; 10. introduction roller; 20. tension roller; 30. winding roller; 40. thermal transfer film. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below. The embodiments described below are illustrative and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0021] like Figure 1 to Figure 2 As shown, the present invention provides a technical solution A thermal transfer film winding tension control system, used for controlling the working state of a winding machine, the winding machine comprising an introduction roller 10, a tension roller 20 and a winding roller 30; the control system comprising a film winding module 1, a tension signal acquisition module 2, a servo motor 4, a servo driver 5, a motor position detection module 6, and an interrupt module 7; the tension signal acquisition module 2 acquires the winding tension signal of the hot coil stamp in the film winding module 1; the servo motor 4 drives the winding roller of the film winding module 1 to move; the servo driver 5 servo drives the servo motor 4 to operate; the motor position detection module 6 acquires and sends and receives the position data and speed data of the servo motor 4; the interrupt module 7 interrupts the sending and receiving signals sent by the film winding module 1 and the motor position detection module 6; It also includes a negative feedback module 3, which is electrically connected between the film winding module 1 and the tension signal acquisition module 2; the negative feedback module 3 is programmed with a constant winding tension range; the negative feedback module 3 receives and analyzes the tension signal from the tension signal acquisition module 2, and sends a winding adjustment signal to the film winding module 1.

[0022] The present invention cooperates with the film winding module 1, the tension signal acquisition module 2, the negative feedback module 3, and the interrupt module 7. The tension signal acquisition module 2 can collect the winding tension signals of the thermal transfer film 40 of the film winding module 1 in real time, and send these signals to the negative feedback adjustment module 3. The negative feedback module 3 receives and analyzes the winding tension signals of the thermal transfer film 40, and feeds back the winding tension signals to the film winding module 1 in real time, driving the film winding module 1 to adjust the winding tension in real time, thereby ensuring that the winding tension value of the thermal transfer film 40 is constant.

[0023] In this embodiment, preferably, the servo motor 4 is electrically connected to the film winding module 1, and the servo motor 4 servo-drives the winding roller of the film winding module 1 to move; the tension signal acquisition module 2 is electrically connected to the film winding module 1, and the tension signal acquisition module 2 collects the winding tension signal of the thermal transfer film 40 of the film winding module 1; the film winding module 1 is electrically connected to the interruption module 7.

[0024] In this embodiment, preferably, a negative feedback module 3 is electrically connected between the film winding module 1 and the tension signal acquisition module 2. The negative feedback module 3 receives and analyzes the winding tension value of the thermal transfer film 40 of the tension signal acquisition module 2. When the winding tension signal is not within the set range, the negative feedback module 3 sends a continuous winding signal to the film winding module 1 to ensure that the winding tension value of the thermal transfer film 40 remains constant.

[0025] In this embodiment, preferably, the motor position detection module 6 includes a motor position sensor 61 and a transceiver balancing circuit 62; the motor position sensor 61 is electrically connected to the servo motor 4; the motor position sensor 61 is electrically connected to the transceiver balancing circuit 62. The motor position sensor 61 is used to collect position data and speed data of the servo motor 4, and transmit and receive these data to the transceiver balancing circuit 62, so as to subsequently control the operation of the servo motor 4 in real time according to the action of the winding roller of the thermal transfer film 40.

[0026] In this embodiment, preferably, a controller module 8 is further included; the controller module 8 controls the action of the servo driver 5; the transceiver balancing circuit 62 is electrically connected to the controller module 8 via the interrupt module 7. The transceiver balancing circuit 62 can send the position data and speed data of the servo motor 4 acquired by the motor position sensor 61 to the controller module 8 via the interrupt module 7 for processing, and the controller module 8 sends a corresponding control signal to the servo driver 5 according to the received position data and speed data of the servo motor 4, so that the servo motor 4 can accurately servo-drive the winding roller of the film winding module 1, thereby ensuring that the winding tension of the thermal transfer film 40 is controlled and kept constant.

[0027] In this embodiment, preferably, a wireless control terminal 9 is further included; the wireless control terminal 9 is electrically connected to the controller module 8; the wireless control terminal 9 sends a start, pause, or stop control signal to the controller module 8. The wireless control terminal 9 serves as a control master switch to regulate the working signal of the controller module 8. The use of the wireless control terminal 9 can effectively reduce the wiring cost of the factory production site, which is beneficial to subsequent maintenance and modification.

[0028] In this embodiment, preferably, the servo driver 5 is electrically connected to the servo motor 4; an encoder 51 is also provided between the servo driver 5 and the servo motor 4. The signal output by the servo driver 5 can drive the servo motor 4 to rotate, and the matching encoder 51 can provide real-time feedback on the rotation speed of the servo motor 4.

[0029] Specifically, when the servo driver 5 cooperates with the servo motor 4 to perform tension control, during the initial winding process of the thermal transfer film 40, the servo driver 5 drives the servo motor 4 to wind quickly. As the winding diameter increases, the servo driver 5 controls the servo motor 4 to wind, and the winding speed gradually slows down. When the winding length reaches the specified length, the controller module 8 drives the thermal transfer film 40 to stop the winding action.

[0030] In this embodiment, preferably, the main circuit inside the servo driver 5 uses a high-speed switch device and is equipped with a noise filter 52. The noise filter 52 can well filter the noise from the power grid line to ensure that the servo driver 5 has a good grounding line.

[0031] In this embodiment, preferably, the servo motor 4 adopts a Japanese YASKAWA full-data AC servo motor; the stator winding and core heat sink of this servo motor 4 have fast response capability and small size and weight, and are particularly suitable for use in a winding tension control system.

[0032] In this embodiment, the servo driver 5 is provided with three control modes that can be switched freely, namely, speed control mode, position control mode and matrix control mode. Specifically, when the servo motor 4 works in the matrix control mode, no matter how the speed of the processed thermal transfer film 40 changes, the thermal transfer film 40 can be ensured to be rolled up smoothly; if the speed of the thermal transfer film 40 processed by the previous level is fast, the servo motor 4 will speed up the winding speed to ensure that the thermal transfer film 40 has a certain winding tension; if the speed of the thermal transfer film 40 processed by the previous level is too slow, the servo motor 4 will slow down the winding speed to avoid stretching the thermal transfer film 40 and affecting the uniform thickness of the film. By setting the servo driver 5 to work in the torque mode, the constant winding tension value of the thermal transfer film 40 is achieved.

[0033] The working principle of the thermal transfer film 40 winding tension control system of this embodiment is as follows: through the coordinated arrangement of the film winding module 1, the tension signal acquisition module 2, the negative feedback module 3, the servo motor 4, the servo driver 5, the motor position detection module 6, the interrupt module 7, the controller module 8 and the wireless terminal module 9, the film winding module 1 performs the thermal transfer film 40 winding roller movement, the servo motor 4 drives the winding roller movement of the film winding module 1, and the motor position detection module 6 collects and receives and sends the position data and speed data of the servo motor 4, and feeds the data back to the controller module 8 through the interrupt module 7, and the controller module 8 controls the servo driver 5, thereby ensuring that the servo motor 4 accurately serves the film winding module 1 for winding. The tension signal detection module 2 detects the winding tension of the thermal transfer film 40 of the film winding module 1 in real time. When the winding tension value of the thermal transfer film 40 is too large or too small, the tension signal detection module 2 transmits the winding tension value signal to the negative feedback module 3. The negative feedback module 3 can transmit the signal to the film winding module 1 to drive the film winding module 1 to adjust the winding roller action; when the winding tension value of the film winding module 1 reaches the standard, the interruption module 7 interrupts the winding signal, thereby achieving a constant winding tension value of the thermal transfer film 40, effectively controlling the sealing and buffering properties of the thermal transfer film 40, and the thermal transfer film 40 winding tension control system has a simple structure and is easy to operate, which reduces the production cost and improves the production efficiency of the enterprise.

[0034] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A thermal transfer film winding tension control system, characterized in that: Used to control the working state of a winding machine, the winding machine comprising an introduction roller (10), a tension roller (20) and a winding roller (30); the control system comprising a film winding module (1), a tension signal acquisition module (2), a servo motor (4), a servo driver (5), a motor position detection module (6), and an interrupt module (7); the tension signal acquisition module (2) acquires the winding tension signal of the thermal transfer film (40) in the film winding module (1); the servo motor (4) drives the winding roller of the film winding module (1) to move; the motor position detection module (6) acquires and sends and receives position data and speed data of the servo motor (4); the interrupt module (7) interrupts the sending and receiving signals sent by the film winding module (1) and the motor position detection module (6); It also includes a negative feedback module (3), which is electrically connected between the film winding module (1) and the tension signal acquisition module (2); the negative feedback module (3) is programmed with a constant winding tension range; the negative feedback module (3) receives and analyzes the tension signal from the tension signal acquisition module (2), and sends a winding adjustment signal to the film winding module (1).

2. The thermal transfer film winding tension control system according to claim 1, characterized in that: The servo motor (4) is electrically connected to the film winding module (1) and servo-drives the winding roller of the film winding module (1) to move; the tension signal acquisition module (2) is electrically connected to the film winding module (1) and acquires the thermal transfer film winding tension signal of the film winding module (1); the film winding module (1) is electrically connected to the interruption module (7).

3. The thermal transfer film winding tension control system according to claim 1, characterized in that: The motor position detection module (6) comprises a motor position sensor (61) and a transceiver balancing circuit (62); the motor position sensor (61) is electrically connected to the servo motor (4); and the motor position sensor (61) is electrically connected to the transceiver balancing circuit (62).

4. The thermal transfer film winding tension control system according to claim 1, characterized in that: It also includes a controller module (8); the controller module (8) controls the action of the servo driver (5); and the transceiver equalization circuit (62) is electrically connected to the controller module (8) via an interrupt module (7).

5. The thermal transfer film winding tension control system according to claim 1, characterized in that: It also comprises a wireless control terminal (9); the wireless control terminal (9) is electrically connected to the controller module (8); the wireless control terminal (9) sends a start, pause, or stop control signal to the controller module (8).

6. The thermal transfer film winding tension control system according to claim 1, characterized in that: The servo driver (5) is electrically connected to the servo motor (4); an encoder (51) is also provided between the servo driver (5) and the servo motor (4).

7. The thermal transfer film winding tension control system according to claim 6, characterized in that: The main circuit inside the servo driver (5) uses a high-speed switch device and is equipped with a noise filter (52).

8. The thermal transfer film winding tension control system according to claim 6, characterized in that: The servo motor (4) adopts a Japanese YASKAWA full-data AC servo motor; the servo driver (5) is provided with three freely switchable control modes, namely a speed control mode, a position control mode and a matrix control mode.

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