Device for producing reinforcement cages

Abstract

The present invention relates to a device for producing reinforcement cages having multiple longitudinal rods around which a wire, being welded to the longitudinal rods, runs, in particular for concrete tubes, wherein the device comprises a longitudinal rod guidance arrangement having multiple guidance elements and multiple radial guidances. To enable varying the shape of the cross-section of the reinforcement cage, the radial guides each comprise a spindle arrangement having at least one spindle, and at least two guidance element drives are provided which are configured to move one of the guidance elements each independently along the associated radial guidance.

What is claimed is: 
     
         1 . A device for producing reinforcement cages comprising multiple longitudinal rods around which a wire, being welded to the longitudinal rods, runs, the device including a longitudinal rod guidance arrangement having multiple guidance elements and multiple radial guidances, each of said multiple radial guidances guiding one of said multiple guidance elements, each of said multiple radial guidances including a spindle arrangement having at least one spindle, further including at least two guidance element drives, each of said at least two guidance element drives being configured to move one of said multiple guidance elements independently along the associated one of said multiple radial guidances, wherein said guidance element drives are implemented as spindle drives, and wherein each spindle drive is an electrical spindle drive, and a current supply for each spindle drive comprises one or more slip rings. 
     
     
         2 . The device of  claim 1  wherein each of said spindle drives is provided at an outer end of an associated one of said spindles. 
     
     
         3 . The device of  claim 1  wherein each said spindle passes through a spindle nut which is mounted rotationally fixed to an associated one of said guidance elements. 
     
     
         4 . The device of  claim 3  wherein each said spindle nut is connected to an associated one of said guidance elements via a rotational bearing, and for each of said spindle nuts a guidance element drive is implemented as an associated spindle nut drive so as to drive the associated spindle nut. 
     
     
         5 . The device of  claim 4  wherein said spindles are rotationally supported, and a central spindle drive is provided so as to synchronously drive the spindles. 
     
     
         6 . The device of  claim 1  wherein an additional spindle is provided for each of said guidance elements. 
     
     
         7 . The device of  claim 2  wherein an additional spindle is provided for each of said guidance elements. 
     
     
         8 . The device of  claim 3  wherein an additional spindle is provided for each of said guidance elements. 
     
     
         9 . The device of  claim 4  wherein an additional spindle is provided for each of said guidance elements. 
     
     
         10 . The device of  claim 6  wherein each of said additional spindles passes through an associated additional spindle nut which is mounted rotationally fixed to an associated one of said guidance elements. 
     
     
         11 . The device of  claim 7  wherein each of said additional spindles passes through an associated additional spindle nut which is mounted rotationally fixed to an associated one of said guidance elements. 
     
     
         12 . The device of  claim 8  wherein each of said additional spindles passes through an associated additional spindle nut which is mounted rotationally fixed to an associated one of said guidance elements. 
     
     
         13 . The device of  claim 9  wherein each of said additional spindles passes through an associated additional spindle nut which is mounted rotationally fixed to an associated one of said guidance elements. 
     
     
         14 . The device of  claim 10  wherein each of said additional spindles passes through an associated additional spindle nut which is mounted rotationally fixed to an associated one of said guidance elements. 
     
     
         15 . The device of  claim 11  wherein each of said additional spindles passes through an associated additional spindle nut which is mounted rotationally fixed to an associated one of said guidance elements. 
     
     
         16 . The device of  claim 4  wherein an additional spindle and an additional spindle nut is provided for each of said guidance elements, each of said additional spindle nuts is connected to an associated one of said guidance elements via an additional rotational bearing, and each of said additional spindle nuts is drivable by a spindle nut drive which is configured to additionally drive the associated one of said spindle nuts of the associated one of said guidance elements. 
     
     
         17 . The device of  claim 5  wherein an additional spindle and an additional spindle nut is provided for each of said guidance elements, each of said additional spindle nuts is connected to an associated one of said guidance elements via an additional rotational bearing, and each of said additional spindle nuts is drivable by a spindle nut drive which is configured to additionally drive the associated one of said spindle nuts of the associated one of said guidance elements. 
     
     
         18 . A device for producing reinforcement cages having a longitudinal rod guidance arrangement around which a wire, being welded to the longitudinal rods, runs, comprising: multiple guidance elements and multiple radial guidances, each of said multiple radial guidances guiding one of said multiple guidance elements, each of said radial guidances including a spindle arrangement having at least one spindle, and at least two guidance element drives being provided which are configured to move one of said guidance elements independently along an associated one of said radial guidances.