Threefold rotationally symmetrical stand having rollers mounted in eccentric bushings

Abstract

The present application relates to a stand ( 1 ) for rolling metal rods, wires or pipes along a rolling axis ( 19 ), said stand comprising a stand housing ( 10 ), the outside of which, viewed along the rolling axis ( 19 ), comprises at least six side surfaces ( 14.1 - 14.6 ) that are of equal length and are arranged in a rotationally symmetrical manner about the rolling axis, 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, and 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 ). The three roller shafts are mounted by means of eccentric bushings in bearing holes of the stand housing ( 10 ) in such a way that a radial spacing of the rollers ( 20.1 - 20.3 ) from the rolling axis ( 19 ) is adjustable.

1 . A stand for rolling metal rods, wires, or pipes along a rolling axis, comprising:
 a stand housing, including an outside comprising at least six side surfaces when viewed along the rolling axis of equal length, the at least six side surfaces arranged in a rotationally symmetrical manner about the rolling axis, wherein each side surface is included in a pair of side surfaces that are located in parallel with one another; and   three rollers positioned on a respective roller shaft in each case, the three rollers surrounding the rolling axis in a star-shaped manner collectively forming a caliber,   wherein the three roller shafts are mounted by way of eccentric bushings in bearing holes of the stand housing such that a radial spacing of the rollers from the rolling axis is adjustable.   
     
     
         2 . The stand according to  claim 1 , wherein at least one further of the side surfaces is oriented at an angle of 120° relative to each of the side surfaces when viewed from the rolling axis. 
     
     
         3 . The stand according to  claim 1 , wherein each of the three roller shafts extends in parallel with a respective one of the pairs of mutually parallel side surfaces. 
     
     
         4 . The stand according to  claim 1 , wherein the outside of the stand comprises exactly six side surfaces forming a regular hexagon. 
     
     
         5 . The stand according to  claim 1 , further comprising an adjustment connector for introducing an adjustment torque, the adjustment connector configured to adjust a radial position of the roller shafts for setting the caliber. 
     
     
         6 . The stand according to  claim 4 , further comprising an adjustment connector for introducing an adjustment torque, the adjustment connector configured to adjust a radial position of the roller shafts for setting the caliber, wherein the adjustment connector is arranged on the outside of the stand housing, in a corner of the regular hexagon. 
     
     
         7 . The stand according to  claim 5 , wherein the adjustment connector is manually actuatable or wherein the remote adjustment connector is automatically actuatable 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 can be driven separately by a respective motor associated with each of the three roller shafts or rollers. 
     
     
         10 . The stand according to  claim 9 , wherein the three roller shafts each comprise a drive-side end for separate driving protruding towards the outside at one of the side surfaces of the stand housing. 
     
     
         11 . The stand according to  claim 5 , wherein the adjustment connector is a remote adjustment connector. 
     
     
         12 . The stand according to  claim 1 , wherein the stand housing is produced from a monobloc.