Roll-up coating tension balance structure

Abstract

This invention provides a roll-to-roll coating tension balancing structure, comprising: an unloading roller for fixing an untreated flexible substrate roll; a take-up roller for winding the surface-treated flexible substrate; guide rollers disposed downstream of the unloading roller and upstream of the take-up roller, the guide rollers jointly defining the substrate transport path; the guide roller closest to the unloading roller is a primary guide roller, forming a first tension zone between the unloading roller and the primary guide roller; the guide roller closest to the take-up roller is a final guide roller, forming a second tension zone between the take-up roller and the final guide roller; a cooling roller disposed on the substrate transport path, the cooling roller being used to adjust the temperature of the flexible substrate; a first sensor for detecting the first tension of the flexible substrate located in the first tension zone; a second sensor for detecting the second tension of the flexible substrate located in the second tension zone; the first tension is greater than or equal to the second tension.

Claims

1. A roll-to-roll coating tension balancing structure, comprising: A feed roller is provided for securing an untreated roll of flexible substrate, the feed roller being provided for applying a first tension to the flexible substrate; A take-up roller is used to pull and wind up the surface-treated flexible substrate, and the take-up roller applies a second tension to the flexible substrate; a plurality of guide rollers are disposed downstream of the feed roller and upstream of the take-up roller, and the guide rollers guide the flexible substrate released by the feed roller for turning and transmission, and the guide rollers collectively define a substrate transmission path; the guide roller closest to the feed roller is a primary guide roller, and a first tension range is formed between the feed roller and the primary guide roller; the guide roller closest to the take-up roller is a final guide roller, and a second tension range is formed between the take-up roller and the final guide roller; a cooling roller is disposed in the substrate transmission path, and the cooling roller is attached to and wound around the outer surface of the flexible substrate to adjust the temperature of the flexible substrate; A first sensor, facing the flexible substrate located within the first tension range, the first sensor is configured to detect the tension of the flexible substrate located within the first tension range, the tension being the first tension; a second sensor, facing the flexible substrate located within the second tension range, the second sensor is configured to detect the tension of the flexible substrate located within the second tension range, the tension being the second tension; and the first tension is greater than or equal to the second tension.

2. The roll-to-roll coating tension balancing structure as described in claim 1, wherein, The feeding roller is rotatably pivotally mounted on a frame. The feeding roller has a feeding shaft for passing through and fixing the untreated flexible substrate. The take-up roller is rotatably mounted on the other side of the frame opposite to the feeding roller. The take-up roller includes a winding shaft for passing through the roll of flexible substrate. The guide rollers are rotatably mounted on the frame. The first sensor and the second sensor are mounted on the frame.

3. The roll-to-roll coating tension balancing structure as described in claim 1, wherein, The feeding wheel is powered by a first tension control unit, and the receiving wheel is powered by a second tension control unit.

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