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.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a sample warper with an idle running preventing mechanism of a yarn guide which has a plurality of yarn guides for winding yarns on a warper drum and automatically exchanges yarns in a preset yarn order to wind the yarns on the warper drum, wherein yarns to be wound can be very effectively exchanged by utilizing the plural yarn guides, and a high speed warping method. [0003] 2. Description of the Related Art [0004] As a sample warper used conventionally, for example, there has been known a structure disclosed in Japanese Patent No. 1529104, namely, a structure where using a fixed creel for supporting a plurality of bobbins on which different kinds (different colors or twisted differently) of yarns are to be wound, the yarns are successively wound on a warper drum by yarn guides while yarn exchanging is performed by yarn selection guides according to preset pattern data (a yarn order)...

AI Technical Summary

Benefits of technology

[0012] The present inventors have solved the above-described problem and have reached to the present invention as a result of the repeated research about a mechanism for reducing the idle running time of the yarn guide during yarn exchanging to the least possible level.

[0014] A second object of the present invention is to provide a high speed warping method which realizes a sharp increase in warping rate and can reduce an idle running time of a yarn guide to the least possible to perform yarn exchanging while maintaining a high warping rate, that is, without lowering the warping rate, thereby reducing the warping time considerably.

[0021] A warping method of the present invention uses each of the above-described sample warpers and reduces a time period required for the yarn exchanging is reduced to the least possible level.

[0023] According to the high speed warping method of the present invention, such an advantage can be achieved that much increase in warping speed is realized and yarn exchanging can be performed while maintaining a high warping speed, namely without lowering the warping speed, and the warping time can be reduced largely.

Problems solved by technology

The fixed creel has a plurality of bobbins on which the same kind and / or different kinds (mainly different kinds) of yarns are to be wound, wherein since yarns can be warped for each yarn while yarn exchanging is freely performed by the selection device, a warping operation for pattern warping can be advantageously performed, but since yarns are sequentially wound on the warper drum for each yarn, much time is disadvantageously required for a warping operation.

In recent years, as fabric design becomes complicated, the number of yarn exchanging increases remarkably, so that a ratio of a total idle running time of the yarn guide during yarn exchanging increases to the warping operation time.

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