Film processing equipment, film deviation correction device and film deviation correction method

Abstract

A film processing device, a film offset correction device, and a film offset correction method are disclosed. The film offset correction device can cooperate with a roller assembly to convey a film. The film offset correction device includes an airflow adjustment unit for controlling the inflow and outflow of airflow, a translation drive unit, a correction roller, a fixed roller, and an offset detector. The surface of the correction roller is formed with multiple airflow adjustment units that communicate with each other, allowing airflow to enter and exit the correction roller pores acting on the film. The fixed roller is disposed between the correction roller and the roller assembly, and its surface is formed with multiple airflow adjustment units that communicate with each other, allowing airflow to enter and exit the fixed roller pores acting on the film. When the offset detector detects that the offset of the film is greater than a threshold value, at least the correction roller of the correction roller and the fixed roller will absorb the film and translate along the axial direction of the correction roller together with the film, so that the offset of the film after correction is no greater than the threshold value. In this way, when an abnormal offset occurs in the film, the offset of the film can be corrected in real time.

Description

Technical Field

[0001] The present invention relates to a film processing device, a film offset correction device and a film offset correction method, and in particular to a film processing device, a film offset correction device and a film offset correction method that can correct improper film offset in real time when conveying the film. Background Art

[0002] Roll-to-roll processing is a highly efficient production technology that processes flexible films using a continuous conveyor system and is currently widely used in various fields. During roll-to-roll processing, the film feed or conveyor position may sometimes shift. However, since the film is wound onto multiple rollers during conveyance or processing, correcting the shifted film can be challenging. Summary of the Invention

[0003] An object of the present invention is to provide a film deviation correction device that can solve the above-mentioned problems.

[0004] Therefore, in some embodiments, the film deviation correction device of the present invention can cooperate with a roller assembly to convey a film. The film deviation correction device includes an airflow adjustment unit for controlling the inflow and outflow of airflow, a translation drive unit, a correction roller, a fixed roller, and a deviation detector. The correction roller is connected to the translation drive unit. The surface of the correction roller forms multiple correction wheel air holes that communicate with the airflow adjustment unit. The airflow in and out of the correction wheel air holes can act on the film, allowing the correction roller to switch between a state of adsorbing and not adsorbing the film. The fixed roller is disposed between the correction roller and the roller assembly. The fixed roller can cooperate with the correction roller to convey the film to the roller assembly in a rolling manner. The surface of the fixed roller forms multiple fixed wheel air holes that communicate with the airflow adjustment unit. The airflow in and out of the fixed wheel air holes can act on the film, allowing the fixed roller to switch between a state of adsorbing and not adsorbing the film. The deviation detector is disposed at the corresponding position of the film to detect the amount of film deviation. Among them, when the offset detector measures that the offset of the film is greater than a threshold value, at least the correction roller among the correction roller and the fixed roller will adsorb and fix the film, and the correction roller will be driven by the translation drive unit, so that the correction roller will translate along the axial direction of the correction roller together with the film while adsorbing the film, so that the corrected offset of the film is not greater than the threshold value.

[0005] In some embodiments, when the offset measured by the offset detector is greater than the threshold value, the correction roller and the fixed roller will both adsorb the film, and the adsorption force of the fixed roller on the film when the correction roller drives the film to translate axially is smaller than the adsorption force of the fixed roller on the film when the correction roller does not drive the film to translate.

[0006] In some embodiments, when the offset measured by the offset detector is greater than the threshold, the correction roller will first be axially translated relative to the film without adsorbing the film, and then the correction roller will be changed to be translated in the opposite direction together with the film while adsorbing the film, so that the corrected offset of the film is not greater than the threshold.

[0007] In some implementations, the fixed roller is disposed at a higher height than the correction roller.

[0008] In some embodiments, the deviation detector is a laser edge detector aimed at the edge of the film.

[0009] Another object of the present invention is to provide a thin film processing device.

[0010] Therefore, in some embodiments, the film processing equipment of the present invention includes a control unit, a conveying drive unit, a roller assembly, and a film deviation correction device. The conveying drive unit is electrically connected to the control unit. The roller assembly can be driven by the conveying drive unit to convey the film in a rolling manner. The film deviation correction device includes an airflow adjustment unit, a translation drive unit, a correction roller, a fixed roller, and a deviation detector. The airflow adjustment unit is electrically connected to the control unit and is used to control the inflow and outflow of air. The translation drive unit is electrically connected to the control unit. The correction roller is connected to the translation drive unit and the conveying drive unit and can be driven by the conveying drive unit to convey the film in a rolling manner. The surface of the correction roller is formed with multiple correction wheel air holes that are connected to the airflow adjustment unit. The airflow in and out of the correction wheel air holes can act on the film, allowing the correction roller to switch between a state of adsorbing and a state of not adsorbing the film. The fixed roller is disposed between the correction roller and the roller assembly and can be driven by the conveying drive unit to convey the film in a rolling manner. The fixed roller can cooperate with the correction roller to convey the film to the roller assembly, and the surface of the fixed roller is formed with a plurality of fixed roller air holes that are connected to the airflow adjustment unit. The airflow in and out of the fixed roller air holes can act on the film, allowing the fixed roller to switch between a state of adsorbing and not adsorbing the film. The offset detector is disposed at a position corresponding to the film and is electrically connected to the control unit for detecting the offset of the film. When the control unit determines that the offset measured by the offset detector is greater than a threshold value, the control unit causes at least the correction roller of the correction roller and the fixed roller to adsorb the film, and the control unit causes the translation drive unit to drive the correction roller, causing the correction roller to translate along the axial direction of the correction roller while adsorbing the film, so that the corrected offset of the film does not exceed the threshold value.

[0011] In some embodiments, when the control unit determines that the offset measured by the offset detector is greater than the threshold value, the control unit causes both the correction roller and the fixed roller to adsorb the film, and the adsorption force of the fixed roller on the film when the correction roller drives the film to translate axially is less than the adsorption force of the fixed roller on the film when the correction roller does not drive the film to translate.

[0012] In some embodiments, when the control unit determines that the offset measured by the offset detector is greater than the threshold value, the control unit will first cause the correction roller to translate axially relative to the film without adsorbing the film, and then the control unit will change the correction roller to translate in the opposite direction together with the film while adsorbing the film, so that the corrected offset of the film is no greater than the threshold value.

[0013] Another object of the present invention is to provide a film shift correction method. The film shift correction method is performed by the aforementioned film shift correction device and includes the following steps: (A) while the correction roller and the fixed roller are conveying the film, determining whether the shift amount measured by the shift detector is greater than a threshold value; (B) if the determination result of step (A) is yes, the airflow adjustment unit controls the inflow and outflow of air to at least cause the correction roller to absorb the film, and the translation drive unit drives the correction roller to translate along the axial direction of the correction roller while the correction roller absorbs the film; (C) while the correction roller drives the film to translate, determining whether the shift amount measured by the shift detector is not greater than the threshold value; and (D) if the determination result of step (C) is yes, the translation drive unit stops driving the correction roller to stop the translation of the correction roller.

[0014] In some embodiments, in step (B), the correction roller will first be axially translated relative to the film without adsorbing the film, and then the correction roller will be changed to be translated in the opposite direction together with the film while adsorbing the film; in step (C), when the correction roller drives the film to translate in the opposite direction, it is determined whether the offset is not greater than the threshold.

[0015] The beneficial effect of the present invention is that: by setting up the film offset correction device, the offset of the film can be corrected in real time when the film has an abnormal offset condition, thereby ensuring that the transmission and processing of the film can proceed smoothly, and the correction process is fast and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view illustrating an embodiment of a thin film processing apparatus and a film deviation correction device thereof according to the present invention;

[0017] Figure 2 is a top view of the embodiment;

[0018] Figure 3 is a block diagram of some components of the thin film processing equipment;

[0019] Figure 4The figure is a flow chart of a film deviation correction method executed by the film deviation correction device. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] See Figures 1 to 3 , is an embodiment of a film processing apparatus 100 of the present invention. The film processing apparatus 100 comprises a control unit 1, a conveyor drive unit 2, a roller assembly 3, and a film deviation correction device 4. In this embodiment, the film processing apparatus 100 is described using the example of laminating a film 200 to another film (not shown). However, in various implementations, the film processing apparatus 100 can also be used for coating or other processing processes, and is not limited to lamination.

[0022] The control unit 1 serves as the control center of the film processing apparatus 100 and can utilize various microprocessors or microcontrollers to control the overall operation of the film processing apparatus 100. The conveying drive unit 2 includes components such as a motor and a transmission mechanism (not shown). It is electrically connected to the control unit 1 and coupled to the roller assembly 3 and the film deviation correction device 4 to provide the power required for the roller assembly 3 and the film deviation correction device 4 to roll and convey the film 200 or process it. The roller assembly 3 includes multiple rollers with different functions, which can be driven by the conveying drive unit 2 to roll and convey the film 200 along a conveying direction before and after lamination. In this embodiment, the roller assembly 3 is shown as a pressure roller for laminating the film, but other rollers (not shown) can also be used in conjunction with these rollers. When the film 200 is conveyed to the pressure rollers of the roller assembly 3, the pressure rollers apply pressure to the film 200 and another film (not shown), laminating the two. Subsequently, the two films can be conveyed to other processing equipment via other rollers.

[0023] The film deviation correction device 4 is used to correct the deviation abnormality of the film 200 , and includes an airflow adjustment unit 41 , a translation drive unit 42 , a correction roller 43 , a fixed roller 44 , and a deviation detector 45 .

[0024] The airflow regulating unit 41 is electrically connected to the control unit 1 and has components such as a vacuum pump, an air pump, and a gas pipeline (not shown in the figure). The vacuum pump can realize the air suction function, and the air pump can realize the air discharge function to control the air inlet and outlet. The translation driving unit 42 is electrically connected to the control unit 1 and connected to the correction roller 43 and has components such as a motor and a transmission mechanism (not shown in the figure) for driving the correction roller 43 along its axial direction ( Figure 2The film 200 is moved in parallel (in the left and right direction, that is, perpendicular to the conveying direction) to perform an offset correction operation on the film 200.

[0025] The correction roller 43 is connected to the translation drive unit 42 and the conveying drive unit 2, and can be driven by the conveying drive unit 2 to convey the film 200 in a rolling manner. A plurality of correction wheel air holes 431 are formed on the surface of the correction roller 43, which are connected to the air flow adjustment unit 41. The air flow in and out of the correction wheel air holes 431 can act on the film 200, allowing the correction roller 43 to switch between a state of adsorbing and a state of not adsorbing the film 200. The fixed roller 44 is disposed between the correction roller 43 and the roller assembly 3, and can be driven by the conveying drive unit 2 to convey the film 200 in a rolling manner. The fixed roller 44 can cooperate with the correction roller 43 to transfer the film 200 to the roller group 3, and a plurality of fixed wheel air holes 441 connected to the air flow adjustment unit 41 are formed on the surface of the fixed roller 44. The air flow in and out of the fixed wheel air holes 441 can act on the film 200, so that the fixed roller 44 can switch between the state of adsorbing or not adsorbing the film 200.

[0026] The deviation detector 45 is disposed at a position corresponding to the film 200 and electrically connected to the control unit 1 , and is configured to detect the deviation of the film 200 . In this embodiment, the deviation detector 45 is, for example, a laser edge detector aligned with the edge of the film 200 . This optically detects the deviation by sensing the edge position of the film 200 , thereby continuously and in real time monitoring the deviation of the film 200 during its transport. However, in various embodiments, the deviation detector 45 may also detect the deviation through image recognition or other methods, and is not limited to a specific detector type.

[0027] The following reference Figures 1 to 3 , explaining the operation of the film processing equipment 100 and the film deviation correction device 4 and the deviation correction method of the film 200. Figure 1 In the embodiment, the film 200 is conveyed to the upper right side (i.e., the conveying direction is Figure 1 (from lower left to upper right in the middle); Figure 2 In the embodiment, the film 200 is conveyed upward (ie, the conveying direction is in the Figure 2 (the middle is from bottom to top).

[0028] Under normal operating conditions, the roller group 3, the correction roller 43 and the fixed roller 44 are powered by the motor of the conveying drive unit 2 under the control of the control unit 1 to drive the roller group 3, the correction roller 43 and the fixed roller 44 to continuously convey the film 200 in a rolling manner, and during the conveying process, the correction roller 43 and the fixed roller 44 will use a certain adsorption force to allow the film 200 to be firmly attached to the correction roller 43 and the fixed roller 44. That is to say, the correction roller 43 and the fixed roller 44 can adsorb the film 200 by the vacuum suction force at the correction wheel air hole 431 and the fixed wheel air hole 441 while rolling, so as to improve the stability of conveying the film 200, so that the film 200 can smoothly complete the film bonding process after being conveyed to the pressure roller of the roller group 3, so as to carry out subsequent processing. In addition, when, for example, the film 200 generates obvious wrinkles, the correction roller 43 and / or the fixed roller 44 can discharge gas from the correction wheel air holes 431 and the fixed wheel air holes 441 and act on the film 200, so that the correction roller 43 and / or the fixed roller 44 are transformed into a state where the film 200 is not adsorbed. In this way, the wrinkles of the film 200 can be smoothed by engineers to facilitate subsequent processes.

[0029] Further reference Figure 4 In the above process, the film deviation correction device 4 will start the film 200 when the deviation reaches a certain level. Figure 4Specifically, in step S01, while the correction roller 43 and the fixed roller 44 are rolling the film 200, the deviation detector 45 continuously detects the deviation of the film 200 in the axial direction (perpendicular to the conveying direction of the film 200) of the correction roller 43 and the fixed roller 44. When the control unit 1 determines that the deviation measured by the deviation detector 45 is greater than a threshold, in step S02, the airflow adjustment unit 41 controls the inflow and outflow of air to at least allow the correction roller 43 to absorb the film 200. In this way, the correction roller 43 absorbs the film 200 while still cooperating with the fixed roller 44 to maintain the conveying of the film 200. Furthermore, the control unit 1 instructs the translation drive unit 42 to drive the correction roller 43, causing the correction roller 43 to move along the axial direction of the correction roller 43 while still absorbent to the film 200, thereby gradually reducing the deviation of the film 200. In step S03, while the correction roller 43 drives the film 200 to translate, the control unit 1 continuously determines whether the deflection measured by the deflection detector 45 is not greater than the threshold. If so, the control unit 1 instructs the translation drive unit 42 to stop driving the correction roller 43, thereby stopping the translation of the correction roller 43, thus completing the entire process of the film deflection correction method. Subsequently, the correction roller 43 and the fixed roller 44 can continue to convey the film 200 to the pressure roller of the roller assembly 3, thus ensuring that the film 200 is in the correct transfer position during the transfer process, allowing for smooth lamination with another film.

[0030] Preferably, in step S02, the control unit 1 can enable both the correction roller 43 and the fixed roller 44 to adsorb the film 200 to control the conveying position of the film 200, and the adsorption force of the fixed roller 44 on the film 200 when the correction roller 43 drives the film 200 to translate axially is less than the adsorption force of the fixed roller 44 on the film 200 when the correction roller 43 does not drive the film 200 to translate. That is to say, when the correction roller 43 drives the film 200 to translate, the adsorption force at the fixed roller 44 will be weakened, so that the film 200 located at the fixed roller 44 will not be strongly adsorbed on the fixed roller 44 and retain a certain degree of mobility. Therefore, when the correction roller 43 drives the film 200 to translate, the film 200 can be effectively prevented from being pulled and deformed. In addition, the setting height of the fixed roller 44 is preferably higher than the correction roller 43. In this way, when the correction roller 43 drives the film 200 to move, the fixed roller 44 can provide support for the film 200 from a higher position, so as to facilitate the correction process. However, this height configuration is only an example of this embodiment and is not limited to this embodiment in implementation.

[0031] On the other hand, in step S02, if the control unit 1 determines that the deflection of the film 200 is excessive, the correction roller 43 will first translate axially relative to the film 200 while not adsorbing the film 200. The correction roller 43 will then shift to adsorbing the film 200 and translate in the opposite direction along with the film 200. In other words, the correction roller 43 will first independently move in the direction opposite to the desired correction direction, creating more room for subsequent translation. The correction roller 43 will then translate in the desired direction along with the film 200 while adsorbing the film 200. In this way, even if the deflection of the film 200 is excessive, the deflection of the film 200 can still be corrected through the aforementioned embodiment, ensuring that the corrected deflection does not exceed the threshold.

[0032] In summary, the film processing equipment 100 of the present invention, by virtue of the provision of the film offset correction device 4, can perform real-time offset correction of the film 200 when an abnormal offset condition occurs in the film 200. This ensures that the transmission and processing of the film 200 can proceed smoothly, and the correction process is quick and simple, thereby truly achieving the purpose of the present invention.

Claims

1. A film deviation correction device, suitable for being installed at a roller group and cooperating with the roller group to convey the film in a rolling manner, characterized in that: The film deviation correction device comprises: An airflow regulating unit for controlling the inlet and outlet of airflow; Translation drive unit; a correction roller connected to the translation drive unit, wherein a plurality of correction wheel air holes connected to the air flow adjustment unit are formed on the surface of the correction roller, and air flow in and out of the correction wheel air holes can act on the film, so that the correction roller can switch between a state of adsorbing and a state of not adsorbing the film; a fixed roller, disposed between the correction roller and the roller assembly, capable of cooperating with the correction roller to convey the film to the roller assembly in a rolling manner, and having a plurality of fixed roller air holes formed on a surface of the fixed roller that are connected to the air flow adjustment unit, so that the air flow in and out of the fixed roller air holes can act on the film, enabling the fixed roller to switch between a state of adsorbing and a state of not adsorbing the film; and A deviation detector is provided at a position corresponding to the film and is used to detect the deviation of the film. Among them, when the offset measured by the offset detector is greater than a threshold value, the correction roller and the fixed roller will both adsorb the film, and the correction roller will be driven by the translation drive unit, so that the correction roller will translate along the axial direction of the correction roller together with the film while adsorbing the film, so that the corrected offset of the film is not greater than the threshold value, and the adsorption force of the fixed roller on the film when the correction roller drives the film to translate along the axial direction is smaller than the adsorption force of the fixed roller on the film when the correction roller does not drive the film to translate.

2. The film deviation correction device according to claim 1, wherein: When the offset measured by the offset detector is greater than the threshold, the correction roller will first be axially translated relative to the film without adsorbing the film, and then the correction roller will be transformed into a state of adsorbing the film and moving in the opposite direction together with the film, so that the corrected offset of the film is no greater than the threshold.

3. The film deviation correction device according to claim 1, wherein: The fixed roller is arranged at a height higher than the correction roller.

4. The film deviation correction device according to claim 1, wherein: The deviation detector is a laser edge detector aimed at the edge of the film.

5. A thin film processing device, characterized in that: The film processing equipment comprises: control unit; a transmission drive unit, electrically connected to the control unit; A roller assembly, capable of being driven by the conveying drive unit to convey the film in a rolling manner; and A film deviation correction device comprising: The airflow regulating unit is electrically connected to the control unit and is used to control the inlet and outlet of the airflow. A translation drive unit, electrically connected to the control unit, A correction roller is connected to the translation drive unit and the transmission drive unit. The correction roller can be driven by the transmission drive unit to convey the film in a rolling manner. A plurality of correction wheel air holes connected to the air flow adjustment unit are formed on the surface of the correction roller. The air flow in and out of the correction wheel air holes can act on the film, so that the correction roller can switch between a state of adsorbing and a state of not adsorbing the film. a fixed roller, disposed between the correction roller and the roller assembly, and capable of being driven by the conveying drive unit to convey the film in a rolling manner; the fixed roller can cooperate with the correction roller to convey the film to the roller assembly; and a plurality of fixed roller air holes connected to the air flow regulating unit are formed on the surface of the fixed roller, and the air flow in and out of the fixed roller air holes can act on the film, so that the fixed roller can switch between a state of adsorbing and a state of not adsorbing the film; and A displacement detector is disposed at a position corresponding to the film and electrically connected to the control unit, for detecting the displacement of the film. Among them, when the control unit determines that the offset measured by the offset detector is greater than a threshold value, the control unit will cause the correction roller and the fixed roller to adsorb and fix the film, and the control unit will cause the translation drive unit to drive the correction roller, so that the correction roller is in a state of adsorbing the film and is translated along the axial direction of the correction roller together with the film, so that the corrected offset of the film is not greater than the threshold value, and the adsorption force of the fixed roller on the film when the correction roller drives the film to translate along the axial direction is smaller than the adsorption force of the fixed roller on the film when the correction roller does not drive the film to translate.

6. The thin film processing equipment according to claim 5, characterized in that: When the control unit determines that the offset measured by the offset detector is greater than the threshold value, the control unit will first cause the correction roller to translate axially relative to the film without adsorbing the film, and then the control unit will change the correction roller to translate in the opposite direction together with the film while adsorbing the film, so that the corrected offset of the film is no greater than the threshold value.

7. A film displacement correction method, performed by the film displacement correction device according to claim 1, characterized in that: The film offset correction method comprises the following steps: (A) when the correction roller and the fixed roller convey the film, determining whether the offset measured by the offset detector is greater than a threshold value; (B) If the result of the judgment in step (A) is yes, the airflow regulating unit controls the inlet and outlet of the airflow so that both the correction roller and the fixed roller adsorb the film, and the translation driving unit drives the correction roller to translate along the axial direction of the correction roller together with the film while adsorbing the film, and the adsorption force of the fixed roller on the film when the correction roller drives the film to translate along the axial direction is smaller than the adsorption force of the fixed roller on the film when the correction roller does not drive the film to translate; (C) when the correction roller drives the film to translate, determining whether the offset measured by the offset detector is not greater than the threshold value; and (D) If the judgment result of step (C) is yes, the translation driving unit stops driving the correction roller to stop the translation of the correction roller.

8. The film deviation correction method according to claim 7, wherein: In step (B), the correction roller will first translate axially relative to the film without adsorbing the film, and then the correction roller will change to translate in the opposite direction together with the film while adsorbing the film; in step (C), when the correction roller drives the film to translate in the opposite direction, it is determined whether the offset is not greater than the threshold.

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