KR20200085393A - Register control system for a better dynamic characteristics in a roll-to-roll manufacturing process - Google Patents

Abstract

The present invention relates to register control of a roll-to-roll manufacturing process, and more specifically, to a register control system for improving dynamic characteristics in a roll-to-roll manufacturing process. To this end, the register control apparatus for improving dynamic characteristics in a roll-to-roll manufacturing process comprises: a first printing roll (100) which prints a trigger mark (130) and a first register mark (120) on a web (20) being transferred; a second printing roll (140) which prints a second register mark (150) on the web (20); a register error blocking roll (300) placed between the first printing roll and the second printing roll (100, 140); a camera (170) which recognizes the trigger mark (130) and photographs the first register mark and the second register mark (120, 150); a detection means which detects a register (R), the distance between the first register mark and the second register mark (120, 150), from an image (175) of the camera (170); a control means which outputs a control output (Out) for controlling a register error based on the register (R) and the distance (R_ref) set by a user; an additional output generation unit (200) which generates an additional output (255) based on the distance (L) between the register error blocking roll (300) and the second printing roll (140), and the rotary speed (v) of the register error blocking roll (300); and a motor driving unit (210) which controls the register error blocking roll (300) based on the control output (Out) and the additional output of the additional output generation unit (200).

Description

Register control system for a better dynamic characteristics in a roll-to-roll manufacturing process}

The present invention relates to register control of a roll-to-roll production process, and more particularly, to a register control system for improving dynamic characteristics in a roll-to-roll production process.

In general, the roll-to-roll printing technology has the advantage of being able to continuously mass-produce electronic devices, and has recently attracted great attention in the field of printed electronics. Register control technology, which is one of the core technologies for applying roll-to-roll printing technology to printed electronics, is an essential technology that must be solved for the practical use of roll-to-roll printing technology. Because is required.

Register refers to the positional relationship between a printed pattern when overlapped and a pattern printed overlaid on the printed pattern, and register measurement means distance measurement between overlapping patterns (hereinafter referred to as distance between overlapping patterns or registers). do. In addition, register control means control of overlapping precision. More specifically, it can be divided into a flexible material web (web) transfer direction register (MD register) and a web transfer direction vertical direction register (CD register). Register error is an error caused by various causes such as eccentricity of roll and expansion and contraction of the web due to temperature change in the drying section. It is essential to reduce the register error in order to maintain high precision and overlap precision.

Figure 6a is a graph showing the variation of the register due to the rotation of the printing roll by -20 ㎛ in the conventional roll-to-roll production process, the upper graph in Figure 6b is a graph showing the first three control inputs in relation to Figure 6a, the lower The graph is a graph showing a register corresponding to the upper graph, and FIG. 6C is a graph showing a register (target register: -20 μm) by a continuous controller input with respect to FIG. 6A.

As shown in Figs. 6A to 6C, Fig. 6A shows the register change after the printing roll rotates -20 µm, and the initial register is 0 mm. The transfer speed of the web is 2 m/min and the control cycle is 14.14 seconds. The span length L of the printing section is 1.87 m. It can be seen from FIG. 6A that the transition period of register variation is about 285 seconds. Since the control speed is much faster than the transition section, the next control input is applied to the web before the register variation by the previous input reaches a stable state.

6B shows the first three control inputs of the register controller (top) and the corresponding register (bottom). In Fig. 6, the target register is -20 mu m. Initially, the first control input of -20 μm is applied to the web. At 14.14 seconds, the difference between the target register and the actual register is calculated, and then the second input is applied to the web. The third control input is applied in 28.28 seconds in the same way as before. It can be seen that the change of the register by the first control input is -4.73㎛, not -20㎛ in 14.14 seconds due to the transition section of the control output. Therefore, the second input of 15.27㎛ is applied to the web. The deformation of the web by the second input is accumulated in the residual fluctuations by the first input. Due to the accumulated control input, the register variation at 28.2 seconds is 11.96 μm. A third input of 8.04 μm is applied to the web. If the register error is repeatedly corrected after the third input and the accumulated control input, a transition period and vibration of about 400 seconds are generated as shown in FIG. 6C.

That is, FIGS. 6A to 6C show that the transition period is long due to the control input accumulated in continuous control, and it takes a considerable time to stabilize.

(1) Korean Patent Registration No. 10-146685 (Register modeling device considering the temperature change of the drying section in the roll-to-roll printing process and its method) (2) Korean Patent Registration No. 10-1438658 (Roll cleaning system for back contamination equipment when printing roll-to-roll) (3) Republic of Korea Patent Registration No. 10-1447045 (Hybrid taper tension control method for optimization of roll-to-roll process winding) (4) Republic of Korea Patent Publication No. 10-2013-0142091 (Roll cell calibration device of a roll-to-roll printing system) (5) Republic of Korea Patent Registration No. 10-1247184 (How to set the operating tension to prevent peeling and slipping in the rewinding section in the roll-to-roll lamination process) (6) Republic of Korea Patent Registration No. 10-1743982 (High-precision register control system and method)

Therefore, the present invention has been devised to solve the above problems, and a problem to be solved by the present invention is to produce a roll-to-roll that can quickly access a target register and maintain a short transition period by applying an additional control input after the first control input. It is to provide a register control system for improving the dynamic characteristics in the process.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly understood by those skilled in the art from the following description. Will be understandable.

As a means for achieving the above technical problem, in a register control device for improving dynamic characteristics in a roll-to-roll production process, a trigger mark 130 and a first register mark 120 are printed on the web 20 being transferred. A first printing roll 100; A second printing roll 140 for printing the second register mark 150 on the web 20; A register error blocking roll 300 provided between the first and second printing rolls 100 and 140; A camera 170 that recognizes the trigger mark 130 and photographs the first and second register marks 120 and 150; Detection means for detecting a register R which is a distance between the first and second register marks 120 and 150 from the image 175 of the camera 170; Control means for outputting a control output (Out) for controlling a register error based on the register R and a distance R _ref set by the user; Additional output to generate an additional output 255 based on the distance L between the register error blocking roll 300 and the second printing roll 140 and the rotational speed v of the register error blocking roll 300 Generating unit 200; And a motor driving unit 210 controlling the register error blocking roll 300 based on the control output Out and the additional output of the additional output generating unit 200; and improving the dynamic characteristics in the roll-to-roll production process comprising a. A register control device for is provided.

In addition, the register error blocking roll 300 is installed closer to the second printing roll 140 between the first and second printing rolls 100 and 140.

In addition, the additional output generating unit 200 generates an additional output (Z) when k seconds by the following equation,

Here, L is the span distance (m) and v is the rotational speed of the roll.

In addition, the additional output generating unit 200 generates the additional output Z when 2k seconds by the following equation.

In addition, the register value when the additional output generator 200 is 4k seconds is maintained at Z.

Also, the additional output Z generated by the additional output generator 200 is a pulse function.

In addition, the motor driving unit 210 controls the speed of the register error blocking roll 300.

In addition, the control means is controlled by one of proportional control (P), proportional differential control (PD), proportional integral control (PI) and proportional differential integral control (PID).

The object of the present invention as described above is another category, in the control method of the register control device for improving the dynamic characteristics in the roll-to-roll production process described above, the trigger mark on the web 20 in which the first printing roll 100 is being transferred Printing 130 and the first register mark 120 (S100); Register error blocking roll 300 controls the transfer speed of the web (20) (S120); The second printing roll 140 printing the second register mark 150 on the web 20 (S140); When the trigger sensor 160 detects the trigger mark 130, the camera 170 photographs the image 175 of the web 20 (S160); A step in which the detection means detects a distance between the first and second register marks 120 and 150 from the image 175 and a register R (S180); The control means calculating a register error based on the register R and the distance R _ref set by the user (S200); The control means outputs a control output (Out) for controlling a register error (S220), a distance (L) between the register error blocking roll 300 and the second printing roll 140, and an additional output generating unit ( 200) generating an additional output 255 based on the rotational speed v of the register error blocking roll 300 (S240); And a step (S250) in which the motor driving unit 210 controls the register error blocking roll 300 based on the control output (Out) and the additional output of the additional output generator 200 (S250). It can also be achieved by the register control method to improve the dynamic characteristics in the production process.

According to an embodiment of the present invention, an additional control input can be applied to quickly achieve a target register, and there is an effect of keeping a transition period short.

Due to this, there is a feature that can stably produce high-quality electronic devices stably.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. Will be able to.

The following drawings attached in this specification are intended to illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the invention described below, and thus the present invention is described in such drawings. It is not limited to interpretation.
1 is a schematic block diagram of a register control system for improving dynamic characteristics in a roll-to-roll production process according to the present invention;
Figure 2 is a flow chart of a register control method for improving the dynamic characteristics in the roll-to-roll production process according to the present invention,
Figure 3a is a schematic configuration diagram of the RBR roll 300 which is a component of the present invention,
3B is a photograph of the RBR roll 300 which is a component of the present invention,
Figure 3c is a detailed picture of the RBR roll 300 in Figure 3b,
FIG. 3D is a graph showing register variation with and without the RBR roll 300 according to FIGS. 3A to 3C,
FIG. 4 is a graph showing the ratio of disturbance in tensile tension between sections before and after installing the RBR roll 300 in the frequency domain.
5 is a graph showing the change in register error before (rectangular) and after (circle) the RBR roll 300 is installed,
Figure 6a is a graph showing the variation of the register due to the rotation of the printing roll by -20 ㎛ in the conventional roll-to-roll production process,
The upper graph in FIG. 6B is a graph showing the first three control inputs in connection with FIG. 6A, and the lower graph is a graph showing registers corresponding to the upper graph,
Figure 6c is a graph showing the register (target register: -20 ㎛) by the continuous controller input with respect to Figure 6a,
7A is a graph showing additional output using the additional output generator (RAI, 200) according to the present invention,
7B is a graph showing the variation of the register (target register: -20 μm) corresponding to FIG. 7A,
8A is a graph showing the additional output actually used by the additional output generating unit (RAI, 200) according to the present invention,
8B is a graph showing the variation of the register (target register: -20 μm) corresponding to FIG. 8A,
Figure 9a is a graph showing the size of the additional output according to the length of the printing section,
Figure 9b is a graph showing the size of the additional output according to the transfer speed of the web 20,
10 is a graph showing register errors before (circular) and after (rhombus) using the additional output generator RAI 200 according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, since the description of the present invention is only an example for structural or functional description, the scope of the present invention should not be interpreted as being limited by the examples described in the text. That is, since the embodiments can be variously changed and have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing technical ideas. In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such an effect, and the scope of the present invention should not be understood as being limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from other components, and the scope of rights should not be limited by these terms. For example, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. When a component is said to be "connected" to another component, it may be understood that other components may exist in the middle, although they may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that no other component exists in the middle. On the other hand, other expressions describing the relationship between the components, that is, "between" and "immediately between" or "adjacent to" and "directly neighboring to" should be interpreted similarly.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as “comprises” or “having” refer to the features, numbers, steps, actions, components, parts, or components described. It is to be understood that a combination is intended to indicate the existence, and does not preclude the existence or addition possibility of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

All terms used herein have the same meaning as generally understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. The terms defined in the commonly used dictionary should be interpreted to be consistent with meanings in the context of related technologies, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

Example Configuration

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings. 1 is a schematic block diagram of a register control system for improving dynamic characteristics in a roll-to-roll production process according to the present invention. As shown in FIG. 1, the roll-to-roll production apparatus is installed with the first printing roll 100 and the second printing roll 140 spaced apart from each other in order to transport the flexible web 20.

The register error blocking roll (RBR roll 300) is installed between the first and second printing rolls (100, 140), and is installed closer to the second printing roll (140). The span (L) length is in the range of 1 to 2 m at intervals between the second printing roll 140 and the register error blocking roll 300, and L=1.87 m in this embodiment.

The first printing roll 100 prints the first register mark 120 and the trigger mark 130 on the lower surface of the web 20, and the second printing roll 140 prints the second register mark 150. .

The trigger sensor 160 is installed in a non-contact manner on the upper portion of the web 20 and may transmit a detection signal to the camera 170.

The camera 170 is installed vertically on the upper portion of the web 20 to photograph the web 20 being transported to generate an image 175 including the first and second register marks 120 and 150.

The detection means detects the register R, which is the distance between the first and second register marks 120 and 150 from the image 175. At this time, the register R may be a distance on the horizontal axis or a distance on the vertical axis. The register R is counted in pixels, and then converted in micrometers and output.

The control means (180, 190) calculates the difference between the detected register (R) and the target register (R _ref ) input by the user to calculate the register error (ΔR), and proportional proportional integral control (PID) Control output (Out) is output.

The additional output generating unit RAI 200 described later may generate additional output.

Then, the motor driving unit 210 receives the input by summing the control output (Out) and the additional output, and controls the speed of the register error blocking roll (300).

Register error blocking roll (RBR)

Unlike robot manipulators, whose control object is essentially rigid, the web (film) can deform due to unexpected phase changes in the printing roll. The deformation of the lower span is transmitted to the upper span along with the transition section. Due to the characteristics of the roll-to-roll manufacturing system, the control output of the motor drive unit 210 is applied to the web 20 with a time constant τ (=L/v). Register Error Blocking Roll (RBR) is proposed to reduce the time constant and prevent the accumulation of tensile errors in the printing section.

3A is a schematic configuration diagram of an RBR roll 300 which is a component of the present invention. The RBR roll 300 is composed of a steel driving roll and a rubber nip roll. The rubber nip roll can be replaced with a steel roll. However, since the surface roughness is low and the elastic modulus is high, when a steel roll is used as a nip roll, the friction between the driven roll and the nip roll is smaller than the tension applied to the web, and slip may occur. The RBR roll 300 is preferably positioned as close as possible to the second printing roll 140. The closer the RBR roll 300 is to the second printing roll 140, the faster the response speed of the second printing roll 140 and the tensile error between the second printing roll 140 and the RBR roll 300 decreases. For example, the distance between the first printing roll 100 and the RBR roll 300 is 11.79 m, and the distance between the RBR roll 300 and the second printing roll 140 is 1.87 m.

The first and second printing rolls 100 and 140 and the RBR roll 300 rotate at the same rotational speed (v). In addition, a load cell for detecting tension is provided between the RBR roll 300 and the second printing roll 140.

3B is a photograph of the RBR roll 300 which is a component of the present invention, and FIG. 3C is a detailed photograph of the RBR roll 300 in FIG. 3B.

3D is a graph showing register variation with and without the RBR roll 300 according to FIGS. 3A to 3C. As shown in Fig. 3d, the feed rate is 2 m/min and the set tension is 2 Kgf. Before installing the RBR roll 300, the length of the printing section was set to about 13.66m. After installing the RBR roll 300, the span length (L) was greatly reduced to 1.87 m. In Fig. 3d, the transition period was about 2100 seconds before the RBR roll 300 was installed, but since the time constant decreases from 409.8 to 56.1 (1/s) after installing the RBR roll 300, the transition period is greatly increased to 1/7 of 2100 seconds. Decreases.

It was clearly observed that the RBR roll 300 has an effect of preventing the accumulation of tensile errors by measuring the tensile error in the printing section before and after installing the RBR roll 300. The operating conditions are the same as in FIG. 3. Tensile is measured by a load cell.

FIG. 4 is a graph showing the rate of disturbance of tensile error in the printing section before and after installing the RBR roll 300 in the frequency domain. In FIG. 4, the blue line with a circle and the red line with a diamond respectively indicate the ratio of the disturbance of tensile error before and after the installation of 300. It can be seen that the maximum disturbance ratio is reduced from 0.0263 Kgf to 0.0175 Kgf by the RBR roll 300. This indicates that the RBR roll 300 can block the accumulation of tensile errors in the printing section.

5 is a graph showing changes in register errors before (rectangle) and after (circle) the RBR roll 300 is installed. The measurement time in FIG. 5 is 1,800 seconds. It can be seen that installing the RBR roll 300 reduces the range of register errors. [Table 1] shows the register control accuracy before and after the RBR roll 300 is installed.

Register error ±5㎛ ±10㎛ ±20㎛ ±30㎛ Before installing RBR (%) 34.9 53.5 79.1 92.0 After installing RBR (%) 41.7 66.2 92.1 97.8

It can be seen that when the RBR roll 300 is installed, data of ±30 μm or less increases from 92.0% to 97.8%. In addition, data below ±5, ±10 and ±20 μm increases by 6.3%, 12.2% and 13.0%, respectively. This indicates that the RBR roll 300 plays an effective role in reducing register errors.

Additional output generator (RAI)

In the present invention, in order to greatly increase the response of the motor driving unit 210, a response acceleration input (RAI) is newly proposed. First, FIG. 7A is a graph showing additional output using the additional output generating unit RAI 200 according to the present invention (which is an output of the additional output generating unit and means an input of a motor driving unit), and FIG. 7B is a register corresponding to FIG. 7A (Target register: -20 ㎛) It is a graph showing the variation. In Fig. 7B, the target register R _ref is -20 mu m. The additional output generator RAI 200 induces a change in the register with a control input close to the pulse function as shown in FIG. This is achieved through additional output (additional control input of the motor-drive unit) at regular intervals as shown in FIG. 7A. In FIG. 7A, the first input of the motor driving unit 210 is -20 μm at 0 seconds. If additional output is applied after 1 second, the register is made from 2㎛ to 20㎛ considering the transition section of the first output. The register is less than -20 μm due to accumulation of control inputs. Considering the operation of the register, the third control input is applied and the register becomes -20㎛ after 3 seconds. If the value of the register does not follow the target register, an additional output (additional control input) can be applied.

In order to determine the size of the second input, a change in register by the control input must be obtained. When the initial input of the motor driving unit 210 is 0 to Z, the corresponding register can be obtained as in [Equation 1] in 1 second. However, it is considered that the deformation of the web 20 is uniform throughout the printing range.

Here, t is time, Z is the input of the controller, v is the rotational speed of the roll, and L is the span distance (m).

Then, the residual deformation at 1 second to be transmitted to the next span (L) is equal to [Equation 2].

The register change at 2 seconds can be obtained from [Equation 3] using [Equation 1] and [Equation 2].

Register variation at n seconds can be obtained using the first input as follows, taking into account residual variation and previous register variation in the print range of (n-1) seconds.

In 1 second, an additional input of the motor driving unit 210 may be obtained by Z _at=1 , which satisfies the following [Equation 5].

Z _at=1 from [Equation 5] is obtained by [Equation 6] as follows.

In 2 seconds, the additional input of the motor driving unit 210 can be obtained by Z _at=2 , which satisfies the following [Equation 7].

Z _at=2 from [Equation 7] is obtained by [Equation 8] as follows.

And, [Equation 6] and [Equation 8] can be generalized as [Equation 9] and [Equation 10], respectively.

Using [Equation 9] and [Equation 10], [Equation 7] can be expressed as [Equation 11] as follows.

The register by the first input and two additional inputs can be calculated as [Equation 12] as follows.

[Equation 12] may be expressed as [Equation 13] as follows using [Equation 11].

[Equation 4] to [Equation 13] show that after applying the first input, the register by the first input and two additional inputs is maintained at Z.

8A is a graph showing the additional output actually used by the additional output generator RAI 200 according to the present invention, and FIG. 8B is a graph showing the variation of the register (target register: -20 μm) corresponding to FIG. 8A. The target register is -20 mu m and the sampling and control interval is 14.14 seconds. In FIG. 8B, it can be seen that the transition period is greatly reduced from about 400 seconds to 1 second by the additional output generating unit (RAI, 200).

8A and 8B, the additional inputs (-0.0011mm and 0.0011mm) are much larger than the first input (-0.00002mm). Using [Equation 9] and [Equation 10], it can be seen that the additional control inputs of 2 and 3 seconds are 54.12 and -54.12 times larger than the first input. Therefore, the maximum input range should be set in consideration of the allowable additional input range when applying RAI.

Operation of the embodiment

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings. Figure 2 is a flow chart of a register control method for improving the dynamic characteristics in the roll-to-roll production process according to the present invention.

First, the trigger mark 130 and the first register mark 120 are printed on the web 20 in which the first printing roll 100 is being transferred (S100).

Then, the register error blocking roll 300 controls the feed rate of the web 20 (S120).

Then, the second printing roll 140 prints the second register mark 150 on the web 20 (S140).

Then, when the trigger sensor 160 detects the trigger mark 130, the camera 170 photographs the image 175 of the web 20 (S160).

Then, the detection means detects the distance between the first and second register marks 120 and 150 from the image 175, that is, the register R (S180).

Next, the control means 180 and 190 calculates a register error based on the register R and the distance R _ref set by the user (S200).

Then, the control means (180, 190) outputs a control output (Out) for PID control of the register error (S220).

At this time, the distance (L) between the register error blocking roll 300 and the second printing roll 140, and the additional output generator 200 is based on the rotational speed (v) of the register error blocking roll 300 The additional output 255 is generated (S240). The additional output 255 is calculated using Equations 4 to 13 above.

Then, the control output (Out) and the additional output 255 are summed together and input to the motor driving unit 210.

The motor driving unit 210 controls the rotational speed of the register error blocking roll 300 based on the summed and input control input (S250).

9A is a graph showing the size of the additional output according to the length of the printing section, and FIG. 9B is a graph showing the size of the additional output according to the transfer speed of the web 20. 9A and 9B, the size of the first input is 80 μm. The web speed in FIG. 9A is 2 m/min, and the span length L in the printing section in FIG. 9B is 1.87 m. It can be seen that the size of the additional control output can be reduced by reducing the span length (L) and increasing the web speed. As the span length (L) increases from 1 m to 15 m, the size of the additional control input increases from 2.2 mm to 36 mm. If the size is too large, the time it takes for the control input to fully apply to the web may be greater than the interval over which the additional control input is applied. Also, the tension change due to the additional control input may exceed the allowable stress of the web (6.67% of the tensile stress of the web). From these results, it can be seen that the size of the additional control input can be reduced by reducing the span length (L) and increasing the web speed. And, by using the RBR roll 300 developed by the inventor of the present invention, the allowable compensation value of the additional output generators (RAI, 200) can be larger and allowed for a shorter span length (L) and a higher web speed. It suggests that the possible compensation value can increase significantly.

10 is a graph showing register errors before (circular) and after (rhombus) using the additional output generator RAI 200 according to the present invention. And, [Table 2] shows the register control accuracy before and after the application of the additional output generators RAI 200. Data below ±5, ±10 and ±20 μm increased by 13%, 10% and 2.3%, respectively. In particular, 80% and 98% of the data are controlled to ±10 μm and ±20 μm, respectively, indicating that the motor driving unit 210 has improved performance at the mass production level.

Register error ±5㎛ ±10㎛ ±20㎛ ±30㎛ Before RAI approval (%) 45.3 71.9 96.1 100 After RAI approval (%) 58.3 81.9 98.4 100

The detailed description of preferred embodiments of the present invention disclosed as described above has been provided to enable those skilled in the art to implement and practice the present invention. Although described above with reference to preferred embodiments of the present invention, those skilled in the art will appreciate that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art can use each of the configurations described in the above-described embodiments in a manner of combining with each other. Accordingly, the present invention is not intended to be limited to the embodiments presented herein, but to give the broadest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Accordingly, the above detailed description should not be construed as limiting in all respects, but should be considered illustrative. The scope of the invention should be determined by rational interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention. The present invention is not intended to be limited to the embodiments presented herein, but to give the broadest scope consistent with the principles and novel features disclosed herein. In addition, in the claims, claims that do not have an explicit citation relationship may be combined to constitute an embodiment, or may be included as new claims by amendment after filing.

20: web,
100: first printing roll,
120: first register mark,
130: trigger mark,
140: second printing roll,
150: second register mark,
160: trigger sensor,
170: camera,
175: image,
180, 190: control means,
200: additional output generator (RAI),
210: motor driving unit,
255: additional output,
300: RBR roll,
R: distance between first and second register marks,
R _ref : User setting value,
△R: Register error,
Out: Output signal,
Out _R : RAI output signal.

Claims (14)

In the register control device for improving the dynamic characteristics in the roll-to-roll production process,
A first printing roll 100 that prints the trigger mark 130 and the first register mark 120 on the web 20 being transferred;
A second printing roll 140 for printing a second register mark 150 on the web 20;
A register error blocking roll 300 provided between the first and second printing rolls 100 and 140;
A camera 170 that recognizes the trigger mark 130 and photographs the first and second register marks 120 and 150;
Detection means for detecting a register (R) which is a distance between the first and second register marks (120, 150) from the image (175) of the camera (170);
Control means for outputting a control output (Out) for controlling a register error based on the register (R) and a distance (R _ref ) set by the user;
Based on the distance (L) between the register error blocking roll 300 and the second printing roll 140, and the rotation speed (v) of the register error blocking roll 300 to generate an additional output (255) Additional output generating unit 200; And
In the roll-to-roll production process characterized in that it comprises; a motor drive unit 210 for controlling the register error blocking roll 300 based on the control output (Out) and the additional output of the additional output generating unit 200 Register control device for improving dynamic characteristics. According to claim 1,
The register error blocking roll 300 is a register for improving dynamic characteristics in a roll-to-roll production process characterized in that it is installed closer to the second printing roll 140 between the first and second printing rolls 100 and 140. Control device. According to claim 1,
The additional output generating unit 200 generates an additional output (Z) at k seconds by the following equation,

Here, L is the span distance (m), v is the control device for improving the dynamic characteristics in the roll-to-roll production process, characterized in that the rotational speed of the roll. The method of claim 3,
The additional output generating unit 200 generates an additional output (Z) when 2k seconds by the following equation,

Here, L is the span distance (m), v is the control device for improving the dynamic characteristics in the roll-to-roll production process, characterized in that the rotational speed of the roll. The method of claim 4,
The additional output generating unit 200 is a register control device for improving dynamic characteristics in a roll-to-roll production process, characterized in that the register value at 4k seconds is maintained at Z. According to claim 1,
The additional output (Z) generated by the additional output generator 200 is a pulse control function, a register control device for improving dynamic characteristics in a roll-to-roll production process. According to claim 1,
The motor driving unit 210 is a register control device for improving the dynamic characteristics in the roll-to-roll production process, characterized in that to control the speed of the register error blocking roll (300). According to claim 1,
The control means for improving the dynamic characteristics in the roll-to-roll production process characterized in that it is controlled by one of proportional control (P), proportional differential control (PD), proportional integral control (PI) and proportional differential control (PID) Register control. In the control method of a register control device for improving the dynamic characteristics in the roll-to-roll production process according to any one of claims 1 to 8,
Printing a trigger mark 130 and a first register mark 120 on the web 20 being transported by the first printing roll 100 (S100);
Register error blocking roll 300 controls the transfer speed of the web (20) (S120);
A second printing roll 140 printing a second register mark 150 on the web 20 (S140);
When the trigger sensor 160 detects the trigger mark 130, the camera 170 photographs the image 175 of the web 20 (S160);
A step in which the detection means detects a distance between the first and second register marks 120 and 150 from the image 175 and a register R (S180);
A control means calculating a register error based on the register R and a distance R _ref set by the user (S200);
The control means outputs a control output (Out) for controlling the register error (S220), and the distance (L) between the register error blocking roll 300 and the second printing roll 140, and addition An output generating unit 200 generating an additional output 255 based on the rotational speed v of the register error blocking roll 300 (S240); And
And a step (S250) of controlling the register error blocking roll 300 by the motor driving unit 210 based on the control output Out and the additional output of the additional output generating unit 200 (S250). Register control method for improving dynamic characteristics in roll-to-roll production process. The method of claim 9,
The additional output generating unit 200 generates an additional output (Z) at k seconds by the following equation,

Here, L is the span distance (m), v is the rotation speed of the roll, the register control method for improving dynamic characteristics in a roll-to-roll production process. The method of claim 9,
The additional output generating unit 200 generates an additional output (Z) when 2k seconds by the following equation,

Here, L is the span distance (m), v is the rotation speed of the roll, the register control method for improving dynamic characteristics in a roll-to-roll production process. The method of claim 9,
The additional output generating unit 200 is a register control method for improving dynamic characteristics in a roll-to-roll production process, characterized in that the register value at 4k seconds is maintained at Z. The method of claim 9,
A register control method for improving dynamic characteristics in a roll-to-roll production process, characterized in that the additional output (Z) generated by the additional output generator 200 is a pulse function. The method of claim 9,
The motor driving unit 210 is a register control method for improving the dynamic characteristics in the roll-to-roll production process, characterized in that to control the speed of the register error blocking roll (300).

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