| 摘要 |
<p>PURPOSE: A door opening and closing device for a steel strip induction heater is provided to prevent the separation of doors and to smoothly open and close the doors even through a structure supporting the steel strip induction heater is drooped or twisted. CONSTITUTION: A door opening and closing device for a steel strip induction heater comprises a pair of doors (214,215), a pair of first links (221), a pair of second links (222), a pair of third links (223), and a driving unit (228). The doors are installed in the steel strip induction heater. One end of the first links is connected to both sides of the doors to be horizontally rotated. One end of the second links is connected to the first links to be horizontally rotated. The third links are connected to one end of the second links to be vertically rotated. The driving unit moves the third links in the opening and closing direction of the doors.</p> |
