Textiles: manufacturing – Warp preparing or handling – Machine replenishing
Patent
1993-11-04
1995-09-12
Falik, Andrew M.
Textiles: manufacturing
Warp preparing or handling
Machine replenishing
28206, 139351, D03J 114
Patent
active
054488117
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a drop-wire separation device for warp drawing-in machines, having a dividing-off member for the respective foremost dropwire of a drop-wire stack.
BACKGROUND OF THE INVENTION
European Patent Application No. 91 113 484.9 describes a drop-wire separation device, in which the dividing-off member is formed by a friction wheel which is pressed against the foremost dropwire and which pushes the latter out of the stack in the longitudinal direction into an intermediate position, in which the dropwire is grasped by a transport means and separated completely from its stack by this. In this separation device, problems can arise if the dropwires cannot slide undisturbed on one another. The latter occurs especially when the dropwires have burrs in the region of their yarn eyelet or any slide-inhibiting residues on their surface.
SUMMARY OF THE INVENTION
Now the invention is to provide a drop-wire separation device, by means of which all types of dropwires can be divided off, including especially those which do not have surfaces with good slidability.
The set object is achieved, according to the invention, in that the dividing-off member comprises a separating means which subjects one of the end edges of the dropwire to be divided off to pressure and which thereby bends this dropwire outwards, and a transport means provided for entry into the gap formed between the respective dropwire and the stack as a result of the outward bending.
The separating operation proceeds in that the separating means presses from above onto the upper end edge of the dropwire to be divided off, the lower end edge of which bears against a stop. The dropwire is thereby compressed between the separating means and the stop in the same way as with tongs and is bent outwards and forms a convex curve in relation to the drop-wire stack. The transport means can then move laterally into the interspace between the drop-wire stack and this curve and subsequently, by means of a movement in the longitudinal direction of the drop-wire stack, feed the divided-off dropwire to a holding member which positions the dropwire for the drawing in of the warp. This guarantees a reliable separation of the dropwires, which is virtually independent of the surface quality of the dropwires and which functions reliably even when burrs and the like are present.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
The invention is explained in more detail below by means of an exemplary embodiment and the drawings; in these:
FIG. 1 shows a general perspective representation of a warp drawing-in machine,
FIG. 2 shows a diagrammatic top view of the drawing-in machine of FIG. 1,
FIG. 3 shows a side view of a drop-wire separation device according to the invention,
FIG. 4 shows a section along the line IV--IV of FIG. 3; and
FIG. 5 shows a section along the line V--V of FIG. 4.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
According to FIG. 1, the drawing-in machine consists of a basic stand 1 and of various subassemblies which are arranged in this and which each form a functional module. A warp-beam carriage 2 having a warp beam 3 arranged on it can be seen in front of the basic stand 1. The warp-beam carriage 3 moreover contains a lifting device 4 for mounting a yarn frame 5, on which the warp yarns KF are stretched. This stretching takes place before the actual drawing in and at a location separate from the drawing-in machine, the yarn frame 5 being positioned at the lower end of the lifting device 4 in direct proximity to the warp beam 3. For the drawing in, the warp-beamcarriage 2 together with the warp beam 3 and lifting device 4 is moved up to the so-called setting-up side of the drawing-in machine, and the yarn frame 5 is lifted upwards by the lifting device 4 and suspended in the basic stand 1, where it then assumes the position shown.
The yarn frame 5 can be displaced in the longitudinal direction of the basic stand 1 by means of a drive which is not shown. During this displacement, the warp yarns KF are guided
REFERENCES:
patent: 3743276 (1973-07-01), van der Does
patent: 4815498 (1989-03-01), Gryson et al.
patent: 5148585 (1992-09-01), Jaeger
patent: 5174000 (1992-12-01), Wilhelm et al.
Gartmann Philipp
Jaeger Silvio
Steiner Heinrich
Falik Andrew M.
Zellweger Luwa AG
LandOfFree
Drop-wire separation device for warp drawing-in machines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drop-wire separation device for warp drawing-in machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drop-wire separation device for warp drawing-in machines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-399717