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OwnerTiziano Bareainventor
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A method for feeding a yarn to a textile machine for its processing and preparation for subsequent use, such as an interlacing, texturizing-interlacing or doubling machine, said yarn comprising at least two threads (3, 4) which are bound together, said first thread (4) and second thread (3) unwinding from a corresponding bobbin, the first (4) of said threads (3, 4) being an elastomeric thread. This latter is unwound from the relative bobbin (6) by withdrawal under free tension, said elastomeric thread (4) then being subjected to tension regulation in order to feed it at constant tension to the next stage, in which it is bound to the other thread. The textile machine of the aforestated type operating in this manner is also claimed.
A method for feeding a yarn to a textile machine for its processing and preparation for subsequent use, such as an interlacing, texturizing-interlacing or doubling machine, said yarn comprising at least two threads (3, 4) which are bound together, said first thread (4) and second thread (3) unwinding from a corresponding bobbin, the first (4) of said threads (3, 4) being an elastomeric thread, this latter being unwound from the relative bobbin (6) by withdrawal under free tension, said elastomeric thread (4) then being subjected to tension regulation in order to feed it at constant tension to the next stage, in which it is bound to the other thread, the tension of the elastomeric thread being regulated on the basis of a predefined value, said value being maintained during the entire processing of the yarn by the textile machine, characterised in that said first and second thread (3, 4) are fed to a device (7) for binding them together, a third thread (4A) also of elastomeric material reaching said device, change-over means (10) being provided to enable said binding device to operate on said third thread (4A) whenever the feed of the second thread of elastomeric material (4) presents an error and this first thread is not fed to said binding device, said third thread (4A) being unwound by withdrawal under free tension from its own bobbin (6A) and being subjected to tension regulation before reaching said binding device (7).
A machine for processing a yarn (2) and preparing it for its subsequent use in a different textile machine for producing an article, said processing machine (T) comprising a yarn processing part (T1) to which said yarn (2) leaving a device (7, 7A, 7B) for binding at least two threads (3, 4, 4A) together is fed, a second of said threads (4) being of elastomeric material and unwinding from a corresponding bobbin (6, 6A), said thread of elastomeric material (4, 4A) unwinding by withdrawal under free tension from the relative bobbin (6, 6A), tension regulator means (5, 5A) being interposed between said bobbin (6, 6A) and said binding device (7, 7A, 7B) to act on said thread of elastomeric material (4, 4A) in order to regulate its tension in accordance with a predetermined parameter, said tension regulator means being a device for automatically regulating the tension at a predetermined value and for maintaining the thread of elastomeric material (4, 4A) at a constant tension, characterised by presenting a third thread (4A), of elastomeric material, to replace or be changed-over with the second thread of elastomeric material (4) whenever this latter presents a feed error at the binding device (7), means being provided for change-over between said elastomeric threads (4, 4A) whenever said error exists, the third thread (4A) being unwound by withdrawal from its own bobbin (6A) and cooperating with tension regulator means (5A) before its entry into said binding device (7).
Dependencies are inferred from the claim text.