METHOD FOR TRANSFORMING A YARN SPINNING AND/OR TWISTING MACHINE AND MODIFIED YARN SPINNING AND/OR TWISTING MACHINE RESULTING FROM SAID METHOD

Abstract

A method for transforming a yarn spinning and/or twisting machine and the yarn spinning and/or twisting machine modified according to the method to increase the height (h) of the balloon region zone (a), between the upper and lower ends thereof is provided. In order to provide the zone with two or more balloon regions (a), with means for feeding (1) the thread (2) using conventional upper guides (3), and means for tensing (4) and rolling (5) the thread (2) onto a lower collection reel (6), includes elimination of the conventional guide means (3); and the incorporation of an additional guide accessory (3′) immediately after the feed means (1), including for example, of a clip (30) or a set of rollers (32) optionally with a conveyor belt (33).

Claims

1. A method for transforming a thread twisting and/or spinning machine comprising: feeding means (1) of the thread (2) and conventional guiding means (3), located at a distance underneath the feeding means (1), which demarcate the top end of a balloon region (a) at the top, and twisting (4) and winding (5) means of said thread (2) perpendicular to a pickup spool (6), and determining the lower end of the balloon region (a); said method intending to modify the machine in order to increase the height (h) of the aforementioned area of the balloon regions (a), between its lower and top end, in order to obtain two or more balloon regions (a), is characterised in that it comprises at least: a first stage for removing the conventional guiding means (3) of the thread (2) located at a distance underneath the feeding means (1); and a second stage for incorporating an additional guiding accessory (3′) placing it at a point just after the feeding means (1) of the thread, in such a way that the distance between said additional guiding accessory (3′) and the twisting (4) and winding (5) means of the thread (2) determine an increase of the height (h) of the area of the balloon regions (a), between its lower and top end, which enables two or more balloon regions (a) to be accommodated.

2. The method for transforming a thread twisting and/or spinning machine to increase the height (h) the area of the balloon regions (a) in order to have two or more balloon regions (a), according to a transformation method such as the one described in claim 1 for a machine comprising: feeding means (1) of the thread (2) and guiding means, which demarcate the top end of said balloon region (a) at the top, and twisting (4) and winding (5) means of said thread (2) perpendicular to a pickup spool (6), and which determine the lower end of the balloon region (a), characterised in that it has, as a replacement of the conventional guiding means (3), located at a distance underneath the feeding means (1) of the thread (2), an additional guiding accessory (3′) located at a point just behind the feeding means (1) of the thread (2), which guide the thread (2) at the top end of the area of the balloon region, increasing the height (h) of said area so that there can be two or more balloon regions (a) when the thread (2) is twisted.

3. A modified thread twisting and/or spinning machine a comprising: feeding means (1) of the thread (2) and guiding means, which demarcate the top end of said balloon region (a) at the top, and twisting (4) and winding (5) means of said thread (2) perpendicular to a pickup spool (6), and which determine the lower end of the balloon region (a), characterised in that it has, as a replacement of the conventional guiding means (3), located at a distance underneath the feeding means (1) of the thread (2), an additional guiding accessory (3′) located at a point just behind the feeding means (1) of the thread (2), which guide the thread (2) at the top end of the area of the balloon region, increasing the height (h) of said area so that there can be two or more balloon regions (a) when the thread (2) is twisted characterised in that said additional guiding accessory (3′) comprises a clip (30) installed in the machine just at the outlet of the thread (2) from the rollers which constitute the feeding means (1) of the machine itself.

4. The modified thread twisting and/or spinning machine according to claim 3, characterised in that the clip (30) which constitutes the additional guiding accessory (3′) is equipped with one or more guide-thread hooks (31) which guide the thread (2).

5. The modified thread twisting and/or spinning machine according to claim 4, characterised in that said additional guiding accessory (3′) comprises a thread lifting mechanism before twisting the strand (2).

6. The modified thread twisting and/or spinning machine according to claim 5, characterised in that the lifting mechanism comprises a set of rollers (32) connected to each other along which the strand (2) runs, in such a way that said strand (2) forms a loop just at the outlet of the rollers (32) which constitute the feeding means (1) of the thread in which said set of rollers is incorporated (32), and in such a way that the said loop lifts the strand (2) above the point where it emerges from said feeding means (1), thus increasing the height (h) of the area of the balloon region so that there can be two or more balloon regions (a) when the thread is twisted.

7. The modified thread twisting and/or spinning machine according to claim 6, characterised in that the set of rollers (32) has mobility of the relative position thereof in order to hold the thread (2) between them at one point or another, as appropriate.

8. The modified thread twisting and/or spinning machine according to claim 6, characterised in that the set of rollers (32) comprises a conveyor belt (33).

9. The modified thread twisting and/or spinning machine according to claim 12, characterised in that the additional guiding accessory (3′) comprises compaction means of the strand during the lifting thereof.

10. The modified thread twisting and/or spinning machine according to claim 9, characterised in that the compaction means are mechanical.

11. The modified thread twisting and/or spinning machine according to claim 9, characterised in that the compaction means are by means of air.

12. A modified thread twisting and/or spinning machine comprising: feeding means (1) of the thread (2) and guiding means, which demarcate the top end of said balloon region (a) at the top, and twisting (4) and winding (5) means of said thread (2) perpendicular to a pickup spool (6), and which determine the lower end of the balloon region (a), characterised in that it has, as a replacement of the conventional guiding means (3), located at a distance underneath the feeding means (1) of the thread (2), an additional guiding accessory (3′) located at a point just behind the feeding means (1) of the thread (2), which guide the thread (2) at the top end of the area of the balloon region, increasing the height (h) of said area so that there can be two or more balloon regions (a) when the thread (2) is twisted.

Description

DESCRIPTION OF THE DRAWINGS

[0028] In order to supplement the above description and with the aim of helping a better understanding of the features of the invention, this specification is accompanied by a set of drawings, which are an integral part thereof, wherein by way of illustration and not limitation, the following has been represented:

[0029] FIG. 1 shows, in a very schematic representation, an elevation view of the main elements of the machine area intervening to demarcate the height of the area of the balloon region formed by the thread during its twisting process, in an unmodified example thereof, that is, with space for a single balloon region;

[0030] FIG. 2 also shows a schematic elevation view of the main elements of the spinning machine after being modified in order to comprise numerous balloon regions, according to the prior art;

[0031] FIG. 3-A shows a schematic elevation view of the main elements of the spinning machine after being modified in order to comprise numerous balloon regions, according a first variant of the embodiment, in particular modified with an additional accessory consisting of a thread-guide clip located next to the thread feeding means;

[0032] FIG. 3-B shows a schematic elevation view of the spinning machine modified to comprise numerous balloon regions, according to other option of the first variant of the embodiment, in particular modified with an additional accessory, in this case secured to a fixed part of the machine; and

[0033] FIGS. 4-A and 4-B show the schematic elevation views of the main elements of the spinning machine after being modified to comprise numerous balloon regions, according to a second variant of the embodiment, in particular modified with an additional accessory consisting of a set of rollers with guiding conveyor belt which lifts the thread to an upper point behind the thread feeding means; the FIGS. 4-A and 4-B show each position options of said set of rollers.

PREFERRED EMBODIMENT OF THE INVENTION

[0034] In view of the aforementioned figures, and according to the adopted numbering, apart from an example of a modified machine according to the prior art, both exemplary and non-limiting embodiments of the twisting and/or spinning machine modified according to the invention can be seen, comprising the parts and elements indicated and described below in detail.

[0035] Thus, FIG. 1 shows, very schematically, the essential elements of a conventional ring thread twisting and/or spinning machine that is not modified, that is, it only has a single balloon region (a) and, basically, they consist of the thread (2) feeding means (1), preferably a set of standard rollers, conventional guiding means (3) which are located at a distance under the feeding means (1), and demarcate the top end of said balloon region (a) at the top, and twisting (4) and winding (5) means of said thread (2) perpendicular to a pickup spool (6), which preferably consist of a tensor rotating around a ring, determining the lower end of the balloon region (a) and which have been located above the spindle which shall form the cited spool (6) instead of surrounding it, in order to ensure a better incorporation of such elements.

[0036] FIG. 2 shows how, according to the prior art, the modification method of said machine to increase the height (h) of the balloon region area (a), between the guiding means (3) and the twisting (4) and winding (5) means in order to obtain two or more balloon regions (a), consists of lifting, as it is, all the elements located in the top part of said balloon region (a), that is, the guiding means (3) and the feeding means (1) of the thread (2), by moving them, without modifying its number or structure or configuration, to a higher position that coincides with the suitable position to obtain the necessary separation height (h) between said guiding means (3) and the twisting (4) and winding (5) means to have the desired two or more balloon regions (a).

[0037] Furthermore, as FIGS. 3 and 4-A, 4-B show, in order to carry out the modification to increase the height (h) of the area of balloon regions (a) in order to obtain two or more balloon regions (a) in the machine of the invention, and according to the proposed method herein, the replacement of the conventional guiding means (3) by an additional guiding accessory (3′) located in a point just behind the feeding means (1) of the thread (2) is envisaged, either underneath or above them.

[0038] More specifically, FIG. 3 shows how said additional guiding accessory (3′), in a first embodiment option, comprises a clip (30) installed in the machine just at the outlet of the thread (2) from the rollers constituting the feeding means (1) of the machine, and said clip (30) may be equipped with one or more thread-guide hooks (31) guiding the thread (2) in the top end of the balloon region area, increasing this way the height (h) of such area so that there can be two or more balloon regions (a) when the thread is twisted.

[0039] FIGS. 4-A and 4-B show how in a second variant of the embodiment, in fact it is a preferred variant, the additional guiding accessory (3′) is made up of a thread lifting mechanism before twisting the strand, preferably comprising a set of rollers (32) connected with each other on which the strand (2) runs in such a way that said thread (2) forms a loop just at the outlet of the rollers representing the feeding means (1) of the strand where said set of rollers (32) are incorporated, in such a way that said loop lifts the strand (2) above the point where it emerges from said feeding means (1), increasing this way the height (h) of the area of the balloon region so that there can be two or more balloon regions (a) when the thread is twisted.

[0040] Preferably, the aforementioned set of rollers (32) which are the preferred variant of the additional guiding accessory (3′) envisages the possibility of moving the relative position thereof to hold the strand (2) between them at one point or another, where appropriate, as shown in FIGS. 4-A and 4-B.

[0041] In a preferred embodiment the set of rollers (32) comprises a conveyor belt (33) that maintains the integrity and the guiding of the strand during the lifting thereof.

[0042] Optionally, the additional guiding accessory (3′) comprises compaction means of the strand during the lifting thereof. The compaction means serve to reduce the hairiness of the thread with the consequent reduction of the hairiness of the final strand.

[0043] For example, the compaction means can be mechanical or by means of air.

[0044] Thus, the method of the invention comprises, at least: [0045] a first stage for removing the conventional guiding means (3) of the thread (2) located at a distance under the feeding means (1); and [0046] a second stage for incorporating an additional guiding accessory (3′), which consists of, for example, a clip (30) or of a thread lifting mechanism before twisting the strand, preferably comprising a set of rollers (32), optionally with conveyor belt (33), being placed just behind the feeding means (1) of the thread, in such a way that the distance between such additional guiding accessory (3′) and the twisting (4) and winding (5) means of the thread (2) determine an increase of the height (h) of the area of the balloon regions (a), between its top and lower end, which enables two or more balloon regions (a) to be accommodated.

[0047] Having sufficiently described the nature of the invention, as well as the manner in which it is put into practice, it is not necessary to give further explanation so that any person skilled in the art understands its scope and the advantages arising from it, stating that, within its essentiality, it may be put into practice through other embodiments differing in detail from those given as examples, and which shall have the protection claimed as long as its basic principle is not altered, varied or modified.