Textiles: weaving – Miscellaneous – Loom cleaning
Patent
1998-07-16
1999-12-14
Falik, Andy
Textiles: weaving
Miscellaneous
Loom cleaning
139353, 28208, D03J 100, D03D 4902
Patent
active
060004398
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a weaving machine, in particular a narrow fabric weaving machine, comprising a machine frame, an apparatus for the supply of warp threads, at least one whip roll for the deflection of the warp threads, a support apparatus, a warp stop motion unit, a plurality of heald frames, and a reed.
2. Description of the Prior Art
In order to be able to make a change after the warp and/or the article to be produced has run out, care must be taken that the warp threads do not become mutually entangled. For this reason, it is known, on the one hand, to use a divided weaving machine or to replace the entire weaving machine and, on the other hand, to use a mobile apparatus and/or a storage carriage, with the warp stop motion, the heald frames and the reed generally being taken out and put in together, and with attention being paid to the warp threads remaining taut.
It proves disadvantageous in this respect that the replacement of a weaving machine or of a weaving machine part is laborious and that the whip roll remains in the weaving machine in the case of mobile apparatuses so that measures must be taken in order that the position of the warp threads and the tension in the warp threads is maintained. This means a greater amount of labor for a change of warp and/or article.
For narrow fabric weaving machines an installation apparatus is known by means of which the heddles of the heald frame are stripped off out of the heddle guide rod transverse to the direction in which the band runs and in the horizontal direction in order to perform a change of article. This change is very difficult and laborious to perform. In addition, the time required is considerable.
Accordingly an object of the present invention is to provide a weaving machine in which a change of warp and/or article can be carried out with simplified means and with the lowest time requirement.
SUMMARY OF THE INVENTION
This and other objects of the present invention, which will become apparent hereinafter, are achieved by providing in the weaving machine a changing apparatus having the whip roll, the warp stop motion unit, and a holder device for the heald frames and the reed, with the changing apparatus being coupled to the machine frame or to the support apparatus and being separable from the machine frame or the support apparatus in such manner that in order to carry out a change of an article, the changing apparatus is replaced by another changing apparatus.
Through the collecting together of the warp stop motion unit and the whip roll in the changing apparatus the extension of the warp threads between the warp stop motion and the whip roll is maintained. The change of an article becomes further simplified and temporally shorter due to the fact that a holding means is provided at the changing apparatus for the reception of the heald frames and of the reed.
Through the coupling of the changing apparatus to the support apparatus or to the machine frame, it is possible to merely replace the changing apparatus for a change of article, through which the change of article is simplified and the storage of the changing apparatus in a minimum amount of space is made possible.
Through the combination of the apparatus for supplying the warp threads and of the support apparatus with the changing apparatus to form a change unit, and through the coupling of the change unit to the machine frame the possibilities are provided of either replacing and/or storing the changing apparatus and the apparatus for supplying the warp threads or of merely replacing and/or storing the changing apparatus. Through these replacement possibilities the weaving preparation is further substantially facilitated with respect to a change of warp and/or article.
It proves advantageous if the changing apparatus has a device for the guidance and/or fixing of the warp threads and if the changing apparatus, the heald frames and a drawn-in article are combined to form a storage unit in order to prepare an article for ren
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patent: 4910837 (1990-03-01), Fujimoto et al.
patent: 4934413 (1990-06-01), Yao
patent: 5050643 (1991-09-01), Takegawa et al.
patent: 5307844 (1994-05-01), Gruwez
patent: 5371930 (1994-12-01), Lindenmueller et al.
patent: 5372164 (1994-12-01), Cloer
patent: 5394596 (1995-03-01), Lindenulller et al.
patent: 5657794 (1997-08-01), Briner et al.
patent: 5775380 (1998-07-01), Roelstraete et al.
Falik Andy
Textilma AG
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