Textiles: manufacturing – Warp preparing or handling – Reeling or beaming
Patent
1989-10-16
1991-05-07
Schroeder, Werner H.
Textiles: manufacturing
Warp preparing or handling
Reeling or beaming
D02H 100
Patent
active
050125648
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a method and apparatus for loading the bobbin creel of a winding installation, in particular a warping installation, which has a plurality of mounting devices on to which bobbins of different kinds are to be fitted or can be fitted.
In relation to a yarn array which consists of yarns of the same kind, no problems are involved in fitting the yarn bobbins on to the mounting devices at the bobbin creel. Difficulties only arise where a yarn array consists of yarns of different colour and/or quality so that the yarn bobbins of different kinds must be fitted into position on the mounting devices at the bobbin creel in a quite specific fitting pattern. That loading operation requires a high level of attentiveness on the part of the operating personnel and a relatively large amount of time.
Accordingly an object of the invention is either substantially to simplify the operation of loading the bobbin creel from the point of view of the operating personnel so that misloadings are practically eliminated, or fully automated the loading operation.
In accordance with the invention, that object is attained with a method having the features of claim 1 and an apparatus having the features of claim 6.
In that connection the control means in practice takes over the operation of computing the entire fitting pattern or patterns in respect of the individual kinds of bobbins, which previously was to be carried out by the operating personnel. In that respect the term fitting pattern means the sequence in which the bobbins are to be mounted on the creel. The fact that the individual fitting patterns of a given kind can be sequentially called up makes it possible in a particularly simple manner to identify the individual mounting devices which have to be respectively loaded. The loading operation can be carried out manually or automatically by way of an automatic loading device. In that connection, different fitting patterns can be readily formed alternatively for the same thread array so that accordingly it is possible to provide for a straight, a skip or a double-skip infeed, for example, at the warping machine. The starting location for the loading operation on the bobbin creel is a secondary consideration, which is highly advantageous in particular in regard to manual loading.
In a particularly advantageous manner, each individual mounting device is provided with an optical display such as for example an LED. Displays of that kind take up a small amount of space, require relatively little maintenance and are easy to actuate. Thus for example the optical displays of a row of bobbins on the bobbin creel can be jointly actuable by way of a multiplexer. It would also be possible to envisage using other optical displays such as for example movable signal flags etc.
For the purposes of monitoring the loading operation, each optical display may have associated therewith an acknowledgement switch for manual acknowledgement that the operation of loading the mounting device has been performed. Alternatively however each mounting device could have a sensor device for monitoring the presence of a bobbin. In that connection the control means can be programmed in such a way that a subsequent signal sequence for the fitting pattern of a different kind of bobbin can be called up only when previously all mounting devices of a preceding fitting pattern have been loaded or if the loading thereof has been manually acknowledged.
Further advantages and individual features of the invention will be apparent from the following description of embodiments of the invention and from the drawings in which:
FIG. 1 is a greatly simplified side view of a warping installation,
FIG. 2 shows the vertical row of bobbins in the plane A--A in FIG. 1,
FIG. 3 shows the electrical diagram in respect of the rows of bobbins A and B in FIG. 1,
FIGS. 4a through 4c show different fitting patterns for the same yarn array,
FIG. 5 is a plan view of a bobbin creel,
FIG. 6 is a plan view of a bobbin carriage creel,
FIG. 7 shows a bobbin carriage loading
REFERENCES:
patent: 3875883 (1975-04-01), Eberwein et al.
patent: 4783021 (1988-11-01), Nagasawa
Gironi Fabrizio
Iten Jakob
Koslowski Gerhard
Probst Willy
Benninger AG
Calvert John J.
Schroeder Werner H.
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