Ascending/descending apparatus and complex sintering furnace using the same

Abstract

Provided is a complex sintering furnace to sequentially perform a bake-out process and a sintering process for molding ceramic products. The complex sintering furnace includes: a support frame; a pair of furnace bodies supported on the top of the support frame and having a built-in heat insulator covered by a disc-shaped cover; a pair of rails arranged under the support frame in parallel in a length direction along arrangement of the furnace bodies; a rotating base horizontally transferred along the rails and rotatably connected to bottoms of the furnace bodies when the rotating base is vertically transferred directly under the bottoms of the furnace bodies, the rotating base including a separately rotating setter mounted the top thereof; and an ascending/descending apparatus mounted under the rotating bases and having a ball-screw type rotation shaft to vertically ascend/descend the rotating base at the same time of the separate rotation of the setters. Accordingly, the production efficiency of the ceramic products can be significantly improved by rapidly transferring to the post-processes and simultaneously performing the bake-out process and the sintering process.

1 . An ascending/descending apparatus of a complex sintering furnace, comprising:
 a first rotation shaft and a second rotation shaft connected to motors and separately rotating;   a rotating base having a bottom center portion supported on the top of the first rotation shaft, the rotating base surrounding the first rotating shaft and being perforated by the second rotation shaft;   a plurality of setter supports arranged radially outside a support shaft tightly connected to the top of the second rotation shaft, the setter supports having setters mounted on the top thereof; and   a torque transmitter having a periphery connected to the support shaft and the setter supporters, such that the support shaft and the setter supporters are organically rotated.   
   
   
       2 . The ascending/descending apparatus according to  claim 1 , further comprising:
 a cover mounted on the top of the rotating base, such that the support shaft and the setter supporters are received therein.   
   
   
       3 . The ascending/descending apparatus according to  claim 1 ,
 wherein the first rotation shaft is rotated in a ball screw way.   
   
   
       4 . The ascending/descending apparatus according to  claim 1 ,
 wherein the second rotation shaft is formed in a hollow shape.   
   
   
       5 . The ascending/descending apparatus according to  claim 1 ,
 wherein the first rotation shaft and the second rotation shaft are connected to one or more motors through a belt.   
   
   
       6 . The ascending/descending apparatus according to  claim 1 ,
 wherein the support shaft and the setter supports include gears on peripheries thereof.   
   
   
       7 . The ascending/descending apparatus according to  claim 1 ,
 wherein the torque transmitter is connected in a “U” shape, such that the torque transmitter passes through one side of the gear of the support shaft and mutually connects the gears of the setter supports, whereby the continuous mono-direction circulation transfer is achieved.   
   
   
       8 . The ascending/descending apparatus according to  claim 7 ,
 wherein the torque transmitter includes a chain connected to the respective gears of the support shaft and the setter supports.   
   
   
       9 . The ascending/descending apparatus according to  claim 1 ,
 wherein the rotating base and the setter supports are rotated in opposite directions.   
   
   
       10 . The ascending/descending apparatus according to  claim 1 ,
 wherein the first rotation shaft and the rotating base supported thereon are ascended/descended by a cylinder using a hydraulic or pneumatic pressure.