| 摘要 |
The invention discloses a paste coating head, a paste coating device and a paste coating method. A sealing material is high-precisely coated on a large-size glass substrate in high-precise patterns. In the paste coating head, a large-volume main paste housing cylinder (23) and a small-volume sub paste housing cylinder (24) are arranged, and a large amount of paste is housed in the main paste housing cylinder (23). In the sub paste housing cylinder (24), when a paste pattern is described on the glass substrate, the paste housed in the cylinder is ejected from a nozzle (22). If the amount of the paste in the sub paste housing cylinder (24) is reduced, a separation valve (30) is open, thus the main paste housing cylinder (23) is communicated with the sub paste housing cylinder (24) by a paste filling channel (27) and the paste in the main paste housing cylinder (23) is supplemented to the sub paste housing cylinder (23). |
