| 摘要 |
PURPOSE: A rotary joint is provided to improve the productivity and the quality of a product by continuously supplying grease, coolant and oil without stopping a drawing equipment. CONSTITUTION: A rotary joint is installed in front of a rotary cylinder to supply grease, oil and coolant into a segment reel. The rotary joint comprises a shaft(10) to be rotated by installing in front of the rotary cylinder; and a casing(20) to supply the grease, the oil and the coolant into the shaft(10) by inserting in the outside of the shaft(10). The shaft(10) comprises a flange portion(11); a primary, a secondary and a third grooves(13,14,15) in a body(12); an oil flowing passage(16) connected with the primary groove(13); an oil discharging passage(17) connected with the secondary groove(14); a grease flowing passage(18) connected with the third groove(15); a coolant flowing passage(19) penetrated in the center of the body(12); and at least one sealing rings(9) between the grooves(13,14,15), in the back of the primary groove(13) and in front of the third groove(15). The casing comprises an oil inlet(21), an oil outlet(22) and a grease inlet(23) corresponding to the grooves(13,14,15); a coolant inlet(24) connected with the coolant flowing passage(19); a lubricant inlet(25) and a lubricant outlet(26) having a sealing port(27) in the back and the center of the casing(20); and a lubricant supplying passage(28) connected between the lubricant inlet(25) and the lubricant outlet(26).
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