Special equipments to improve efficiency and accuracy of weaving machines, reducing manual work are required. With a view to increase the efficiency and the flexibility of the weaving machines, the manufacturers have made considerable efforts to find solutions capable of simplifying and speeding up the operations and the machine settings at style changing and to permit coping better with particular production requirements.
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Quick beam changeQuick beam change: this operation is facilitated by the quick insertion of the beam’s end through grooved profile driven by an eccentric, while leaving the gear on board the weaving machine; the beam blocking is guaranteed by a quick gripping system
Quick heald frame hooking this operation permits quick hooking and unhooking of the heald frames by their lateral shifting, avoiding manual operations
Quick temple positioning this operation permits the immediate re-positioning of the temple during re−assembling
With a view to increase the efficiency and the flexibility of the weaving machines, the manufacturers have made considerable efforts to find solutions capable of simplifying and speeding up the operations and the machine settings at style changing and to permit coping better with particular production requirements.
The Quick Style Change (QSC)
The weaving mills which produce small quantities per style (high quality clothing) can increase the weaving efficiency by optimizing the style change. The Quick Style Change consists of a series of operations as shown in Fig. 94, which need to be carried out as quickly as possible. By suitably designing the weaving machines, using new equipment and organizing systems, this operation is accomplished in about forty-five minutes by a single operator, thus saving a lot of time
The quick warp change (QWC)
The quick warp change (QWC) consists instead only of the replacement of an empty beam with a ready full beam, of knotting the new threads with those of the run out warp with an automatic tying-in machine, and of the forward movement of the warp beyond the reed, to eliminate the knotted zone.
Reduction of the number of warp and style changes
In addition to QSC and to QWC, another possibility to reduce the incidence of the setting-up times is the reduction in the number of warp changes by using large diameter warp beams and take-up devices for large batch rolls, both installed outside the weaving machine, which besides for these aspects is also suited to particular weaving requirements. These machines are designed for a cost- effective production of standard fabrics or of particular fabric categories
Weaving machines of new design
Another way to increase production is to design and manufacture particular weaving machines
which can offer very high weft insertion rates.