AN APPARATUS FOR AUTOMATICALLY OPENING AND SHUTTING DOOR FOR HEARTH ROLL OF HOT FURNACE

摘要

The present invention can make the exchange work safely with a small number of people, to shorten the hearth roll change time hearth rolls in a high temperature annealing of the door is improved to enhance the productivity relates to the automatic opening and closing device. ; The present invention, a pair of blocks disposed on an outer surface of the bearing for supporting a side end of the hearth roll equipped with a cover member, the top side is mounted to be rotatable in the bearing block, the hearth rolls disposed in a state covering the door opening and closing portion through the respective spring members; Equipped with a plurality of the lever is mounted so as to be rotatable in the middle of the lower arm of the bearing block, one end of the lever through each wire rope is connected to the lower end of the cover member, the wire rope are a plurality of sheaves (sheeve ) is turning through the link unit to be converted into a vertical movement of the lever opening and closing operation of said cover member, a bar and the support that is mounted on the other end of the lever, supported by the respective built-in spring elasticity the support bar As, hearth rolls seating portion having a roll stand batchineun left the roll; including hearth roll provides automatic door opening and closing device of a high-temperature annealing is configured to fulfill the opening and closing of the door when drawn out of the hearth roll hearth roll automatically