Transport installation for paper reels, method for its operation and vehicle

Abstract

A vehicle ( 12 ) which can be coupled to a nondriven carriage ( 9 a ) carrying a paper reel ( 10 ) and to a further such carriage ( 9 b ) carrying a reel core basket ( 11 ) by means of electromagnetic coupling elements is movable underfloor on a loading track ( 4 ) which can be reached via a turntable ( 3 ). Said vehicle pulls the latter carriage ( 9 b ) from a storage track ( 8 ) onto a sliding platform ( 5 ), from which it is pushed to a reel stand ( 6 ), where the reel core basket ( 11 ) receives a reel core before the carriage ( 9 b ) is pushed back onto the storage track ( 8 ). Thereafter, the vehicle ( 12 ) travels to the waiting station of the carriage ( 9 a ) carrying the paper reel ( 10 ), couples, pulls it onto the sliding platform ( 5 ), uncouples and travels onto the storage track ( 8 ). After the paper reel ( 10 ) has been received by the reel stand ( 6 ), the vehicle ( 12 ) travels back onto the sliding platform ( 5 ), couples again to the carriage ( 9 a ) and pushes it back to the waiting station. The vehicle ( 12 ) has two pairs of wheels, one of which is drivable, and a pair of pressure wheels which, in a starting position, project beyond the pairs of wheels and can be pressed downwards against an elastic restoring force.

1 . Transport installation for feeding paper reels to at least one reel stand ( 6 ), comprising at least one sliding platform ( 5 ) having a track section ( 7 ) and a loading track ( 4 ) which leads from a feed side to the sliding platform ( 5 ) and with which the track section ( 7 ) is flush when the sliding platform ( 5 ) is in a transfer position, and comprising at least one nondriven carriage ( 9   a ) for receiving a paper reel ( 10 ), characterized in that it comprises at least one driven vehicle ( 12 ) which is capable of travelling on the loading track ( 4 ) and the track section ( 7 ), and the vehicle ( 12 ) and the carriage ( 9   a ) each have at least one coupling device by means of which the vehicle ( 12 ) can be coupled to the carriage ( 9   a ).  
     
     
         2 . Transport installation according to  claim 1 , characterized in that the loading track ( 4 ) is arranged underfloor and the vehicle ( 12 ) is capable of travelling underfloor thereon.  
     
     
         3 . Transport installation according to  claim 1  or  2 , characterized in that the track section ( 7 ) is formed continuously through the sliding platform ( 5 ) and, on the side facing away from the feed side, a storage track ( 8 ) which is flush with the loading track ( 4 ) is adjacent to the sliding platform ( 5 ).  
     
     
         4 . Transport installation according to any of  claims 1  to  3 , characterized in that it comprises a plurality of sliding platforms ( 5 ) and parallel loading tracks ( 4 ) and a feed track ( 2 ) which leads from a paper reel store to the loading tracks ( 4 ) and to which the loading tracks ( 4 ) are each connected by a turntable ( 3 ).  
     
     
         5 . Method for operating a transport installation according to any of  claims 1  to  4 , in which a carriage ( 9   a ) loaded with a paper reel ( 10 ) is moved from a waiting station via the loading track ( 4 ) onto the sliding platform ( 5 ), which is present in the transfer position, and then, for transferring the paper reel ( 10 ) to the reel stand ( 6 ), the sliding platform ( 5 ) with the carriage ( 9   a ) is moved under the reel stand ( 6 ) and the paper reel ( 10 ) is raised from the carriage ( 9   a ) and the sliding platform ( 5 ) is then moved back to the transfer position, whereupon the carriage ( 9   a ) is moved back to the waiting station, characterized in that, for moving said carriage onto the sliding platform ( 5 ), a driven vehicle ( 12 ) is coupled to that end of the carriage ( 9   a ) which faces said sliding platform and said vehicle then pulls the carriage ( 9   a ) onto the sliding platform ( 5 ) and, after transfer of the paper reel ( 10 ) to the reel stand ( 6 ), pushes said carriage back to the waiting station.  
     
     
         6 . Method according to  claim 5  for operating a transport installation according to  claim 3  or  4 , characterized in that, before transfer of the paper reel ( 10 ) to the reel stand ( 6 ), the vehicle ( 12 ) is uncoupled from the carriage ( 9   a ) and is moved onto the storage track ( 8 ).  
     
     
         7 . Method according to  claim 5  for operating a transport installation according to  claim 3  or  4  or according to  claim 6 , characterized in that, before the carriage ( 9   a ) is moved from the waiting station onto the sliding platform ( 5 ), the vehicle ( 12 ) is coupled to a carriage ( 9   b ) standing on the storage track ( 8 ) and loaded with a reel core basket ( 11 ), which vehicle then pulls said carriage ( 9   b ) onto the sliding platform ( 5 ), which is present in the transfer position and then, for transferring a reel core ( 38 ) from the reel stand ( 6 ), the sliding platform ( 5 ) with the carriage ( 9   b ) is moved under the reel stand ( 6 ) and the reel core ( 38 ) is ejected into the reel core basket ( 11 ) and the sliding platform ( 5 ) is moved back to the transfer position, whereupon the carriage ( 9   b ) is pushed back onto the storage track ( 8 ) by the vehicle ( 12 ) and the vehicle ( 12 ) is uncoupled.  
     
     
         8 . Method according to  claim 7 , characterized in that, before transfer of the reel core ( 38 ) from the reel stand ( 6 ), the vehicle ( 12 ) is uncoupled from the carriage ( 9   b ) and is moved onto the loading track ( 4 ).  
     
     
         9 . Vehicle for a transport installation according to any of  claims 2  to  4 , having at least two pairs of wheels ( 14 ,  15 ), of which at least one pair of wheels ( 14 ) is drivable for moving the vehicle ( 12 ), and having at least one coupling means for the detachable coupling of the vehicle ( 12 ) to a carriage ( 9 ), characterized in that it has at least one pair of pressure wheels ( 23 ) which, in the unloaded state, projects beyond the pairs of wheels ( 14 ,  15 ) and can be pushed downwards against a restoring force.  
     
     
         10 . Vehicle according to  claim 9 , characterized in that the at least one coupling means is in the form of an electromagnetic coupling element ( 24 ) which can be switched on and off.  
     
     
         11 . Vehicle according to  claim 9  or  10 , characterized in that the at least one coupling means ( 24 ) is in the form of a buffer.  
     
     
         12 . Vehicle according to any of  claims 9  to  11 , characterized in that it has a coupling means at each end.  
     
     
         13 . Vehicle according to any of  claims 9  to  12 , characterized in that a sensor for detecting any coupled carriage ( 9 ) is coordinated with each coupling means.  
     
     
         14 . Vehicle according to  claim 13 , characterized in that the sensor is in the form of a switch ( 25 ).