Method and device for winding and attaching warp strips onto the drum of a cone sectional warping machine

Abstract

When winding individual warp strip sections, the ends of the warp strips are fixed onto the surface of the same section at least at two adjacent warp strip sections. At each second warp strip section, a base element is attached to the warp strip, onto which the ends of the warp strip, by means of connecting elements mounted thereon, can be adhered. The time required for attaching the base elements is thus reduced.

What is claimed is:  
     
         1 . A method of winding and attaching warp strips onto a drum of a cone sectional warping machine, at which several sections of warp strips are sequentially wound adjacent to a winding on the drum, said method comprising steps of 
 providing the strip-start and the strip-end of each section with a two-dimensional    connecting element connecting the individual yarns of the strip with each other,    attaching the strip-starts of the sections onto the drum,    attaching the strip-ends of the sections on the surface of the winding, and    attaching the strip-ends of a first section and at least an adjacently arranged second section to the surface of the first section.    
     
     
         2 . A method according to  claim 1 , wherein a two-dimensional base element is attached to the warp strip of the first section spaced from the strip-end in a distance of approximately one winding circumference and that the strip-ends of the first and the second sections are commonly attached to the base element of the first section.  
     
     
         3 . A method according to  claim 2 , wherein the strip-ends and respective connecting elements at the strip-ends of the first and the second section are attached in succession in the direction of the winding onto the base element of the first section.  
     
     
         4 . A method according to  claim 2 , wherein each base element is formed by two material segments which are connected with each other in such a way that they take up the yarns of the warp strip between each other without combining with them.  
     
     
         5 . A method according to  claim 4 , wherein the material segments of the base elements between individual yarns or groups of individual yarns are connected with each other point-by-point, wherein said individual yarns and a respective group of individual yarns are spread in the region of connection prior to connecting.  
     
     
         6 . A method according to  claim 1 , wherein each connecting element is formed by two material segments, which are connected with each other in such a way, that they take up the yarns of the warp strip between each other and combine with them, wherein, on the side facing the warping drum during winding, an adhesive segment is provided on the material segment.  
     
     
         7 . A method according to  claim 6 , wherein the connecting element at the strip-end of a section and the connecting element at the strip-start of a subsequent section are formed by common material segments, which after the connection are divided along with the yarns.  
     
     
         8 . A method according to  claim 6 , wherein the material segments of the base elements as well as the material segments of the connecting elements at a warp strip treatment station are stripped off from the same material segment supplies and are divided in accordance with the warp strip width.  
     
     
         9 . A method according to  claim 8 , wherein at the warp strip treatment station one of the both material segments is coated with the adhesive segment from a connectable adhesive dispenser to form the connecting elements.  
     
     
         10 . A device for winding and attaching warp strips onto a drum of a cone sectional warping machine having 
 a warp carriage which can be shifted parallel to an axis of the drum,    a warp strip treatment station arranged on the carriage, at which station a two-dimensional connecting element can be mounted at the strip-start and at the strip-end of each warp strip section,    a strip changing device connected to the warp carriage for attaching the strip-starts onto the drum and the strip-ends onto the surface of the winding,    a control device for controlling the warp carriage and the strip changing device in such a way that, after winding a first warp strip section and attaching its strip-end onto the surface of the first section and after winding a second section lying next to the first section, the strip-end of the second section can be fed back to the surface of the first section and is attached thereto.    
     
     
         11 . A device according to  claim 10 , wherein a two-dimensional base element attachable at the warp strip treatment station to the warp strip of the first section spaced from the strip-end in a distance of approximately one winding circumference, the strip-end of the first section and the strip-end of the second section being commonly attachable to this base element.  
     
     
         12 . A device according to  claim 11 , further comprising a stripping device for mounting the connecting elements and the base elements on the warp strip treatment station, at which two material segments, having been combined with each other, can be stripped off in such a way that they cover and enclose the warp strip.  
     
     
         13 . A device according to  claim 12 , further comprising an adhesive dispenser for coating the material segment facing the drum during winding with an adhesive segment in the course of stripping off from the stripping device.  
     
     
         14 . A device according to  claim 13 , wherein the adhesive dispenser comprises a roller clamp and a feeding arm by means of which an adhesive tape is feedable towards the surface of a material segment, said feeding arm being pivotable between a feeding position and a home position.  
     
     
         15 . A device according to  claim 12 , further comprising a welding device arranged at the warp strip treatment station in order to weld the material segments, said welding device comprising at least one spot welder terminal and at least one line welder terminal for different treatment of the connecting elements and the base elements.  
     
     
         16 . A device according to  claim 15 , wherein the welding device comprises a spread means, by means of which the yarns of the warp strip can be spread in order to expose spot welding joints.  
     
     
         17 . A device according to  claim 15 , wherein, for producing the connecting elements, at least two parallel line welder terminals are arranged in order to form two parallel welded seams, whereby material segments thus welded can be separated between the welded seams by means of a cutting device.  
     
     
         18 . A device according to  claim 15 , wherein the line welder terminals and/or the spot welder terminals comprise a movable bearing and are shiftable between a welding position and a home position.