Threefold rotationally symmetrical stand having an adjustment connector

Abstract

The present application relates to a stand ( 1 ) for rolling metal rods, wires or pipes along a rolling axis ( 19 ), which stand comprises a stand housing ( 10 ), the outside ( 12 ) of which, viewed along the rolling axis ( 19 ), comprises at least six side surfaces ( 14.1 - 14.6 ) that are arranged so as to be offset about the rolling axis, about a 60° rotation in each case, wherein in each case two side surfaces ( 14.1, 14.4, 14.2, 14.5, 14.3, 14.6 ) form a pair of side surfaces ( 14.1 - 14.6 ) that are located in parallel with one another. It further comprises three rollers ( 20.1 - 20.3 ) which are positioned on one roller shaft in each case, surround the rolling axis ( 19 ) in a star-shaped manner, and together form a caliber ( 21 ), and the radial position of which, based on the rolling axis ( 19 ), can be set for setting the caliber ( 21 ), and an adjustment connector ( 30 ) that is arranged on the outside ( 12 ) and is intended for introducing an adjustment torque for setting the caliber ( 21 ). In this case, the adjustment connector ( 30 ) comprises a gear shaft which is in parallel with a pair of the mutually parallel side surfaces.

1 . A stand for rolling metal rods, wires, or pipes along a rolling axis, comprising:
 a stand housing, an outside comprising at least six side surfaces when viewed along the rolling axis that are arranged so as to be offset about the rolling axis by a 60° rotation between adjacent side surfaces, wherein each side surface is included in a pair of side surfaces that are located in parallel with one another;   three rollers positioned on a respective roller shaft, the three rollers surrounding the rolling axis in a star-shaped manner collectively forming a caliber, wherein the three rollers are configured such that the radial position of the three rollers, with respect to the rolling axis, can be set for setting the caliber; and   an adjustment connector arranged on the outside of the stand housing for introducing an adjustment torque for setting the caliber,   wherein the adjustment connector comprises a gear shaft in parallel with a pair of the mutually parallel side surfaces.   
     
     
         2 . The stand according to  claim 1 , wherein the gear shaft and the rolling axis are perpendicular when viewed along the rolling axis, and wherein a spacing of the gear shaft from the rolling axis is no more than 10 percent of a perpendicular spacing of the rolling axis from an outside side surface. 
     
     
         3 . The stand according to  claim 1 , wherein the three rollers and the three roller shafts are offset in a rotationally symmetrical manner about the rolling axis by a 120° rotation between each roller shaft, and wherein a roller shaft extends in parallel with the gear shaft. 
     
     
         4 . The stand according to  claim 1  further comprising only the one adjustment connector for introducing the adjustment torque for setting the caliber. 
     
     
         5 . The stand according to  claim 4 , wherein the adjustment connector is operatively connected to an eccentric mechanism having eccentric bushings in which the roller shafts are mounted, wherein the eccentric bushings are rotatably mounted in the stand housing and a rotational position of the eccentric bushings can be set by means of the gearbox. 
     
     
         6 . The stand according to  claim 1 , wherein the outside of the stand housing comprises exactly six side surfaces which form a regular hexagon. 
     
     
         7 . The stand according to  claim 1 , wherein the adjustment connector is configured to be actuated manually and automatically by a motor. 
     
     
         8 . The stand according to  claim 1 , wherein the stand housing is closed and undivided. 
     
     
         9 . The stand according to  claim 1 , wherein each of the three roller shafts or rollers are configured to be driven separately, in particular by its own motor associated therewith. 
     
     
         10 . The stand according to  claim 9 , wherein the three roller shafts each comprise a drive-side end for separate driving, which protrudes towards the outside of the stand housing, at one of the side surfaces of the regular hexagon. 
     
     
         11 . The stand according to  claim 1 , wherein the stand housing is produced from a monobloc. 
     
     
         12 . The stand according to  claim 9 , wherein each of the three roller shafts or rollers are configured to be driven by a respective motor.