KR-20260064132-A - Alignment method between roll-to-roll machines of independent structure

KR20260064132AKR 20260064132 AKR20260064132 AKR 20260064132AKR-20260064132-A

Abstract

The present invention relates to a method for aligning roll-to-roll facilities of independent structures, and provides an electrode alignment method in which a second facility independent of the first facility is moved in the width direction to align the electrodes in the width direction based on correction amount data that corrects the width direction position of an electrode traveling in a first facility of a roll-to-roll process.

Inventors

김보선
곽준현

Assignees

주식회사 엘지에너지솔루션

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (15)

An electrode alignment method that aligns electrodes in the width direction by moving a second facility independent of the first facility in the width direction based on correction amount data that corrects the width direction position of an electrode traveling in the first facility of a roll-to-roll process.
In paragraph 1, An electrode alignment method in which the first facility is an electrode lamination facility and the second facility is an electrode unwinder facility.
In paragraph 2, An electrode alignment method comprising an electrode lamination facility, an anode edge position controller having an actuator, and a cathode edge position controller having an actuator.
In paragraph 3, An electrode alignment method in which the position of the electrode in the width direction is corrected by an actuator, and the correction amount data is the correction amount data of the actuator.
In paragraph 2, The electrode unwinder facility is an electrode alignment method comprising a driving anode unwinder, a standby anode unwinder, a driving cathode unwinder, and a standby cathode unwinder.
In paragraph 1, An electrode alignment method in which the entire second facility, including the electrode, is moved.
In paragraph 1, Step of monitoring correction amount data; and An electrode alignment method comprising the step of sampling correction amount data.
In Paragraph 7, A step of filtering sampled correction amount data; and An electrode alignment method comprising the step of calculating an average value of correction amounts from filtered correction amount data.
In paragraph 8, A step of determining whether to make corrections based on the average value of the calculated correction amount; and An electrode alignment method comprising the step of correcting by moving a second facility in the width direction when correction is required.
In Paragraph 9, An electrode alignment method that performs correction of the second equipment only when the average value of the correction amount exceeds a preset minimum correction amount.
In Paragraph 9, An electrode alignment method in which, when the average value of the correction amount exceeds a preset maximum correction amount, the correction of the second facility is performed using the maximum correction amount.
In Paragraph 9, An electrode alignment method in which, when the average value of the correction amount is between a preset minimum correction amount and a maximum correction amount, the correction of the second equipment is performed using the average value of the correction amount.
In Paragraph 9, An electrode alignment method that considers at least one of the electrode replacement time and the acceleration/deceleration section of the electrode drive when determining whether to correct.
A step of monitoring correction amount data obtained by correcting the width direction position of an electrode traveling in a roll-to-roll electrode lamination facility using an actuator of an edge position controller; Step of sampling correction amount data; A step of filtering sampled correction amount data; A step of calculating the average value of the correction amount from the filtered correction amount data; A step of determining whether to make corrections based on the average value of the calculated correction amount; and An electrode alignment method comprising the step of correcting by moving the electrode unwinder equipment in the width direction when correction is required.
A first facility equipped with an actuator that corrects the width direction position of an electrode traveling in a roll-to-roll process; A second facility independent of the first facility and movable in the width direction; and An electrode alignment system comprising a control unit that controls the second facility to move in the width direction and align the electrodes in the width direction based on correction amount data of the actuator.

Description

Alignment method between roll-to-roll machines of independent structure The present invention relates to a method for aligning roll-to-roll machines, and specifically to a relative correction amount feedback control for Y-axis (width direction) position alignment between roll-to-roll machines of independent structure. It is widely known that roll-to-roll systems achieve the best processability when the unwinder's travel position aligns with the work locations within the process, such as joining, cutting, lamination, and sealing. However, not only is it difficult to align the travel paths between independent equipment (e.g., the unwinder and lamination equipment), but aligning the travel positions of the anode and cathode in the lamination equipment—where the anode and cathode are joined—is also challenging due to the equipment structure, which makes measurement difficult. The first reason is the difficulty in aligning the travel paths between independent equipment. The vertical and horizontal alignment of the bases of each independent piece of equipment must be verified, and the degree of divergence (meandering) in the direction perpendicular to the travel path between them must be considered. However, due to the structure of the lamination equipment, it is very difficult to measure the vertical and horizontal alignment of the bases and the degree of divergence in the direction perpendicular to the travel path. The second reason is that it is difficult to align the driving positions between the supply units (anode 1, anode 2, cathode 1, cathode 2) due to the equipment structure, which makes it difficult to measure the position. Additionally, there are four electrode edge sensors (Spool EPC) that determine the driving position in the unwinder equipment, and it is not an easy task to align all four sensors by positioning them on the same line. The base for aligning the absolute positions between the electrode edge sensors does not exist in the horizontal direction, and there are also equipment tolerances in the mechanism itself to which the electrode edge sensors are constrained; therefore, even if measurement is possible from the base, a difference is inevitable given the structure. Accordingly, a function is required to organically align the installation parameters (IP: install parameter, vertical/horizontal degree of the base, etc.) between independent equipment and the four electrode supply units. Figure 1 shows the travel path between independent facilities before correction. Figure 2 shows the alignment of travel paths between independent facilities after correction according to the present invention. Figure 3 shows the driving path between the supply units before correction. Figure 4 shows the alignment of the driving path between the supply units after correction according to the present invention. Figure 5 shows the exhaustion point of the driving electrode. Figure 6 shows the standby electrode moving to the stop position of the driving electrode. Figure 7 shows that the standby electrode returns to the origin after the facility is restarted. Figure 8 shows the lamination EPC operating in alignment with the pass line of the atmospheric electrode. FIG. 9 shows the sequence of control operations according to the present invention. FIG. 10 illustrates a control operation sequence according to the present invention. The present invention will be described in detail below with reference to the attached drawings. Referring to FIGS. 1 and 2, the electrode alignment method according to the present invention is characterized by aligning the electrode (1) in the width direction by moving a second facility (20), which is independent of the first facility (10), in the width direction based on correction amount data that corrects the width direction position of the electrode (1) traveling in the first facility (10) of the roll-to-roll process. In FIGS. 1 and 2, the width direction (Y-axis direction) may be the up-down direction, and the travel direction (X-axis direction) may be the left-right direction. The width direction position of the electrode (1) may refer to the width direction position of the edge (end) of the electrode (1). The statement that multiple facilities are independent may mean that the functions of each facility are different, and/or that the installation locations of each facility are spatially separated. Therefore, not only lamination facilities and unwinder facilities with different functions, but also the relationship between a driving electrode unwinder and a standby electrode unwinder with the same function but different installation locations can be considered as independent facilities. The first facility (10) may be an electrode lamination facility where the positive electrode and the negative electrode are combined. The electrode lamination facility (10) may include an edge position controller (EPC) that measures and corrects the travel path of the electrode (1), and the EPC may inclu