Sewing – Work manipulating – Guides
Patent
1992-05-19
1994-08-09
Nerbun, Peter
Sewing
Work manipulating
Guides
112141, 112304, 83 14, D05B 3510, D05B 3708, D05B 2700
Patent
active
053356110
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATION
This application is a national phase application of PCT/DE90/00911 filed and based upon a German Application filed under the International Convention.
FIELD OF THE INVENTION
The invention relates to an edge guide for a textile web in a sewing installation for the automatic finishing of textile products with trimmed ends, wherein the textile web is wound on a cloth beam.
BACKGROUND OF THE INVENTION
A sewing installation of this type is the object of German Patent 37 10 025. This sewing installation has proven to be most efficient in the automatic production of textile products with finished ends, whereby it is particularly advantageous that several webs can be taken up at the same time from the cloth beam. However, it has been found that in the processing of coarse goods with thick weft threads, such as used particularly in scouring cloth, difficulties arise because of the tendency of the weft threads to detach themselves from the fabric, so that the edges can not be perfectly finished.
OBJECTS OF THE INVENTION
It is the object of the invention to provide an apparatus for preventing the detachment of weft threads at the edge of textile products.
According to the invention an apparatus for cutting pieces from an elongated web, so that each of the pieces is formed with respective hemmed longitudinal sides, and for delivering the pieces toward a sewing machine, the apparatus comprising:
storing means including a cloth beam with a web wound thereon;
transport means receiving the web from the beam for transporting the web downstream along a web path in a first upstream-downstream direction; cutting means including a separator movable transversely to the first direction for cutting pieces from the web along the path;
an upstream machine half provided with respective pick-up means including respective tongue movable reciprocally parallel to the first direction and communicating with the separator for sequentially clamping the pieces of the web;
a downstream machine half spaced downstream of the upstream machine half along the web path and provided with respective pickup means including respective tongues movable reciprocally parallel to the first direction and communicating with the respective tongues of the upstream half for further advancing the pieces along the web path;
conveyor means including a longitudinal endless conveyor movable in a second upstream-downstream direction along a piece path transversely to the first direction and having a respective upstream part flanked by the machine halves, the conveyor receiving sequentially the pieces from the machine halves, the conveyor receiving sequentially the pieces from the tongues; and
guiding means extending along the second direction substantially between the cutting means and the sewing machine for guiding respective longitudinal edges of each of the pieces transported by the conveyor, the guiding means being provided along opposite longitudinal flanks of the conveyor and including:
a pair of abutment rails, each of the abutment rails being provided with a respective upstream portion inclined along and transversely to the second direction, so that respective longitudinal hemmed sides of each of the pieces are bent upwardly at a right angle with respect to a main portion of the web.
As a result of the steps taken by the invention, the thick weft threads at the edge of the textile product are prevented from leaving the bond of the fabric consisting of warp and weft. By raising the textile edge in a simple manner, perfectly neat edges result, a success which is achieved by surprisingly simple structure of the device according to the invention.
BRIEF DESCRIPTION OF THE DRAWING
The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:
FIG. 1 is an end view of the right and the left machine halves I and II with the advance or pickup tongs;
FIG. 2 is the right and the left machine halves with a
REFERENCES:
patent: 3934525 (1976-01-01), Alfred
patent: 4573420 (1986-03-01), Carson
patent: 4856439 (1989-08-01), O'Neal
patent: 5018416 (1991-05-01), Freermann
patent: 5133273 (1992-07-01), Brocklehurst
Carl Schmale GmbH & Co. KG
Dubno Herbert
Nerbun Peter
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