Sample warper with idle running preventing mechanism of yarn guide

Abstract

There is provided a sample warper with an idle running preventing mechanism of a yarn guide, wherein yarns are automatically exchanged and successively wound on the warper drum according to a preset yarn order by passing the yarns between the yarn guides and the yarn selection guides, and wherein, when a first yarn being wound on the warper drum by a first yarn guide is exchanged to a second yarn, after a yarn removing operation for removing the first yarn from the first yarn guide is finished, a yarn feeding operation for feeding the second yarn to a second yarn guide is performed while the empty first yarn guide makes one rotation. The sample warper can achieve such an advantage that an idle running time of a yarn guide when exchanging yarns can be reduced considerably and a speed of yarn exchanging is improved remarkably.

1 . A sample warper with an idle running preventing mechanism of a yarn guide comprising: a plurality of yarn guides each rotatably mounted on a side surface of a warper drum for winding yarns on the warper drum; a yarn selection device provided with a plurality of yarn selection guides which are in correspondence with the yarn guides, each of the yarn selection guides being pivotally moved to project to a yarn exchanging position when exchanging yarns and retract to a standby position when storing yarns; a fixed creel for supporting a plurality of bobbins on which the same kind and/or different kinds of yarns are to be wound and which are associated with the plural yarn selection guides; and yarn removing guides which are provided such that one of the yarn removing guides corresponds to each of the plural yarn selection guide, wherein yarns are automatically exchanged and successively wound on the warper drum according to a preset yarn order by passing the yarns between the yarn guides and the yarn selection guides, and wherein, when a first yarn being wound on the warper drum by a first yarn guide is exchanged to a second yarn, after a yarn removing operation for removing the first yarn from the first yarn guide is finished, a yarn feeding operation for feeding the second yarn to a second yarn guide is performed while the empty first yarn guide makes one rotation.  
   
   
       2 . The sample warper according to  claim 1 , wherein, when yarn exchanging is performed from a yarn of the yarn selection guide positioned downstream of the yarn selection device to a yarn of the yarn selection guide positioned upstream of the yarn selection device, the yarn guide positioned downstream of the first yarn guide is used as the second yarn guide.  
   
   
       3 . The sample warper according to  claim 1  or  2 , wherein, after a yarn removing operation for removing the first yarn from the first yarn guide is finished, a yarn guide which has first reached the position of the yarn selection guide which supplies the second yarn is used as the second yarn guide.  
   
   
       4 . A sample warper with an idle running preventing mechanism of a yarn guide comprising: a plurality of yarn guides each rotatably mounted on a side surface of a warper drum for winding yarns on the warper drum; a yarn selection device provided with a plurality of yarn selection guides which are in correspondence with the yarn guides, each of the yarn selection guides being pivotally moved to project to a yarn exchanging position when exchanging yarns and retract to a standby position when storing yarns; a fixed creel for supporting a plurality of bobbins on which the same kind and/or different kinds of yarns are to be wound and which are associated with the plural yarn selection guides; and yarn removing guides which are provided such that one of the yarn removing guides corresponds to each of the plural yarn selection guide, wherein yarns are automatically exchanged and successively wound on the warper drum according to a preset yarn order by passing the yarns between the yarn guides and the yarn selection guides, and wherein, when a first yarn being wound on the warper drum by a first yarn guide is exchanged to a second yarn, after a yarn feeding operation for feeding the second yarn to a second yarn guide is finished, a yarn removing operation for removing the first yarn from the first yarn guide is performed while the second yarn guide holding the second yarn makes one rotation.  
   
   
       5 . The sample warper according to  claim 4 , wherein, when yarn exchanging is performed from a yarn of the yarn selection guide positioned upstream of the yarn selection device to a yarn of the yarn selection guide positioned downstream of the yarn selection device, the yarn guide positioned upstream of the first yarn guide is used as the second yarn guide.  
   
   
       6 . The sample warper according to  claim 4 , wherein a yarn guide positioned upstream in a rotational direction of and adjacent to the first yarn guide is used as the second yarn guide.  
   
   
       7 . A sample warper with an idle running preventing mechanism of a yarn guide comprising: a plurality of yarn guides each rotatably mounted on a side surface of a warper drum for winding yarns on the warper drum; a yarn selection device provided with a plurality of yarn selection guides which are in correspondence with the yarn guides, each of the yarn selection guides being pivotally moved to project to a yarn exchanging position when exchanging yarns and retract to a standby position when storing yarns; a fixed creel for supporting a plurality of bobbins on which the same kind and/or different kinds of yarns are to be wound and which are associated with the plural yarn selection guides; and yarn removing guides which are provided such that one of the yarn removing guides corresponds to each of the plural yarn selection guide, wherein yarns are automatically exchanged and successively wound on the warper drum according to a preset yarn order by passing the yarns between the yarn guides and the yarn selection guides, and wherein, when a first yarn being wound on the warper drum by a first yarn guide is exchanged to a second yarn, a yarn removing operation for removing the first yarn from the first yarn guide and a yarn feeding operation for feeding the second yarn to a second yarn guide are performed simultaneously.  
   
   
       8 . The sample warper according to  claim 1 , wherein the yarn selection guides are grouped into a plurality of groups and arranged.  
   
   
       9 . The sample warper according to  claim 4 , wherein the yarn selection guides are grouped into a plurality of groups and arranged.  
   
   
       10 . The sample warper according to  claim 7 , wherein the yarn selection guides are grouped into a plurality of groups and arranged.  
   
   
       11 . The sample warper according to  claim 8 , wherein the grouped yarn selection guides are arranged according to spaces among the plural yarn guides.  
   
   
       12 . The sample warper according to  claim 9 , wherein the grouped yarn selection guides are arranged according to spaces among the plural yarn guides.  
   
   
       13 . The sample warper according to  claim 10 , wherein the grouped yarn selection guides are arranged according to spaces among the plural yarn guides.  
   
   
       14 . A high speed warping method using the sample warper according to  claim 1 , wherein a time period required for the yarn exchanging is reduced to the minimum.  
   
   
       15 . A high speed warping method using the sample warper according to  claim 4 , wherein a time period required for the yarn exchanging is reduced to the minimum.  
   
   
       16 . A high speed warping method using the sample warper according to  claim 7 , wherein a time period required for the yarn exchanging is reduced to the minimum.