PLANT FOR THE MANUFACTURE OF TWO-PHASE SPARKLING OR BEADED TUBULAR YARN AND PROCEDURE FOR THE MANUFACTURE OF SAID YARN

Description

when you need to move to another strip, the needle must move parallel to the The result is a serpentine needle path that significantly slows the of the yarn given the insertion of it in the the advantages of the invention are clarified below by detailed description of preferred embodiments of the invention, with reference to the according to the invention in according to the invention in according to the invention in the rock is free from the shaft and held still by the magnet; the invention in which according to the invention in the invention in which the guides, needles and cam rotor are shown with a single the invention in which the guides, needles and cam rotor with double according to the invention. Also, when used, terms such as “first”, “second”, “superior”, “inferior”, “principal” and “secondary” do not necessarily identify an order, a Plant 1 is designed to allow the formation of yarns tubularly, that is, sewn one on top of the other. System 1 also allows for the creation of Plant 1 therefore comprises a frame of the system 1. It may comprise a bare structure, for example reticular, System 1 also advantageously includes a distributor System 1 comprises at least one head 12 and the auxiliary wire 10. Therefore, the head 4 is also preferably Preferably, the system 1 also comprises a passage device and then configured to intercept the one or more filaments in Preferably, the system 1 also includes a traction group planed filament 12 since it is part of the yarn 11 and the latter is dragged The main axis 7a is a virtual axis around which the walls develop delimit the body 70. The latter is preferably centered with respect to the axis , in detail centered on the central axis 7a. The first thread 13 passes along the main axis 7a. In addition, the first thread 13 is threaded at least one support along the central axis 7a. one of the beads both supported along the central axis 7a. to the central axis 7a at a free end of the body 70, Base 71 also includes a slot. This slot extends transversely. to the central axis 7a to allow the passage of the first wire 13, in particular This presser can be pneumatic and in detail defines a jet of air incident said base appropriately parallel to the central axis 7a. Said jet of air can pass through the body 71. wire 14 spaced from the central axis 7a. decorative element the decorative element ( the approach of the decorative element the element The decorative element twist correspondence. the decorative element along the main axis 7a on the base 71. The pusher 73a The spiralling apparatus 74 is preferably placed downstream of the capture group 73. Then, the coiling apparatus 74 receives the intermediate filament 15. Furthermore, the coiling apparatus 74 is configured to coil a third wire In this way, the spiralling apparatus 74 realizes the Furthermore, the coiling apparatus 74 may comprise, in more detail, is centered about the main axis 7a and rotating about the main axis 7a. the In addition to what is described, the system 1 could include further Plant 1 . The central axis 3a is Thus, the central axis 3a is preferably perpendicular to a The dispensing directions 10a may be parallel to the central axis 3a, or Furthermore, the delivery directions 10a may converge towards the central axis 3a. Preferably the directions of delivery 10a are mirror images of the axis central 3a. Furthermore, conveniently, the directions 10a are rotating around the axis when dispensed, they rotate around the central axis 3a and preferably converge internal. Furthermore, the second shaft 30 is centered with respect to the central axis 3a. In addition, preferably, the second shaft 30 is rotatable with respect to the central axis they are arranged in a mirror image with respect to the central axis 3a. ' auxiliary 10 from the second hollow shaft 30 and deliver it in rotation around the axis 31. Then, the disk 32 is configured to drive rotationally about the axis c. in tree 30. Plant 1 may also be without a group In this case, preferably, the plant 1 further comprises a group of In addition, system 1 could also include a suction group The axis of rotation 4a it could, for example, be aligned with the central axis 3a, if the Thus, preferably, the rotor 40 is centered about the axis . The guide 40a preferably develops around the axis direction parallel to the axis it develops along a circumference defined around the axis staggered along the axis under the other guide 40a. towards the axis to define yarn 11 which is, as already said, given by the coupling Since the directions 10a rotate around the axis they rotate around the axis parallel to, or towards, the axis to the rotation of the rotor 40 around the axis The term “extreme” means that the position is a frontier one and corresponds to the In any case, in the extreme loading position, needle 41 is closest to the extreme loading position, needle 41 hooks In the extreme unloading position, however, needle 41 is further spaced from the in the extreme unload position, needle 41 frees when needle 41 passes from position when needle 41 passes from the extreme position of perpendicular to the axis How the plant works 1 The procedure is preferably implemented by plant 1. in which the first wire 13 is inserted on the base 71, preferably along the axis decorative element the decorative element the decorative element of the twisting by making the intermediate filament 15. delivered along respective distinct directions 10a rotating around the central axis 3a. 41 with reciprocating motion parallel to, or towards, the axis 11, made by coupling d The invention also includes, of course, a new two-phase tubular yarn 11 Plant 1 according to the invention, important advantages are achieved. In fact, plant 1 Furthermore, plant 1 The invention is susceptible to variations within the scope of the inventive concept

Claims

CLAIMS 1. Plant (1) for producing two-phase tubular yarns with decorative elements comprising: - a support frame (2); - a distributor (7) integral with said frame (2) and configured to dispense a main filament (12) along a direction of advancement of said main filament (12); - a weaving head (4) integral with said frame (2), positioned downstream of said distributor (7) along said direction of advancement and configured to receive at least said main filament (12) and an auxiliary yarn (10) to produce a tubular yarn (11) by combining said main filament (12) and said auxiliary yarn (10); - a traction unit (5) integral with said frame (2), positioned downstream of said head (4) along said direction of advancement and configured to pull said yarn (11) away from said head (4) in such a way as to determine said direction of advancement;and characterised in that - said dispenser (7) comprises: - a tubular body (70) extending along a main axis (7a) and including: - a plurality of decorative elements stacked one on top of the other and centred with respect to said central axis (7a), said decorative elements being selected from at least one of sequins and beads and - a first thread (13) running along said main axis (7a) threaded into said decorative elements; - a base (71) positioned downstream of said body (70) along said direction of advancement, configured to support one of said decorative elements resting along said central axis (7a) and including a slot extending transversely to said central axis (7a) to allow the passage of said first thread (13); - a conveyor (72) configured to convey a second thread (14) transversely to said base (71) through said slot spaced from said central axis (7a);- a capture assembly (73) configured to sequentially push one of said decorative elements onto said base (71) and translate said decorative element along said slot towards said second wire (14) such that said second wire (14) twists around said first wire (13) locally capturing said decorative element on said first wire (13) at said twisting point thereby forming an intermediate filament (15); and - a coiling apparatus (74) positioned downstream of said capture assembly (73) along said direction of travel and configured to coil a third wire (16) onto said intermediate filament (15) in transit along said direction of travel towards said head (4) to form said main filament (12).; 2. Plant (1) according to claim 1, wherein said coiling apparatus (74) comprises: - a first shaft (74a) adapted to allow the passage of said intermediate filament (15) and said third wire (16) inside it, centered with respect to said main axis (7a) and rotating with respect to said main axis (7a); and - a reel (74b) on which said third wire (16) is wound, integral with said first shaft (74a) and configured to supply said first shaft (74a) with said third wire (16) while said intermediate filament (15) passes along said main axis (7a) in said first shaft (74a).

3. System (1) according to claim 1, wherein said capture group (73) comprises: - a pusher (73a) configured to sequentially push said decorative element along said main axis (7a) onto said base (71), and - a translator (73b) configured to sequentially translate said decorative element pushed onto said base (71) along said slot on said base (71).

4. System (1) according to any of the preceding claims, further comprising a thread guide assembly (3) integral with said frame (2), defining a central axis (3a) and configured to deliver at least said main filament (12) and said auxiliary thread (10) along respective distinct delivery directions (10a) rotating around said central axis (3a); wherein said thread guide assembly (3) comprises: - a second hollow shaft (30) adapted to allow the passage of said main filament (12) and said auxiliary thread (10) inside it, centred with respect to said central axis (3a) and rotating with respect to said central axis (3a);- at least two guides (31) integral with said second shaft (30) arranged in a mirror-like manner with respect to said central axis (3a) at one end of said second shaft (30) facing said head (4) and suitable for receiving respectively said main filament (12) and said auxiliary thread (10) from said second hollow shaft (30) and dispensing it in rotation around said central axis (3a) along a respective said direction (10a).; 5. Plant (1) according to the previous claim, wherein said thread-guide group (3) comprises: - a disk (32) integral with said second shaft (30), arranged at one end of said second shaft (30) opposite to said guides (31) and configured to guide said main filament (12) by rotation around said central axis (3a) before said main filament (12) is introduced into said shaft (30); and - a bobbin (33) on which the other said auxiliary thread (10) is wound, integral, or idle, with respect to said second shaft (30), arranged close to said disk (32) and configured to feed said second shaft (30) with said auxiliary thread (10); wherein said bobbin (33) is free-floating with respect to said second shaft (30) and includes a ferromagnetic base and said wire guide assembly (3) further comprises a magnet (34) configured to hold said bobbin (33) stationary with respect to said second shaft (30).

6. System (1) according to any of claims 1-5, further comprising a feed assembly (8) configured to produce a filament with continuous and discontinuous drawn fibres and convey said filament with continuous and discontinuous drawn fibres towards said head (4), said auxiliary thread (10) being made of said filament with continuous and discontinuous drawn fibres.

7. A system (1) according to any of claims 1-5, further comprising a suction assembly (9) configured to convey a plurality of loosely drawn free fibres (17) towards said head (4) such that, when said yarn (11) is formed by said head (4), said free fibres (17) are trapped between said main filament (12) and said auxiliary yarn (10).

8. System (1) according to any of the preceding claims, wherein said head (4) comprises: - a cam rotor (40) rotating around a rotation axis (4a) defining a further guide (40a) extending around said rotation axis (4a) having at least two peaks spaced along a direction parallel to said rotation axis (4a), - a plurality of needles (41) configured to receive at least said main filament (12) and said auxiliary yarn (10) along a said respective direction (10a) and release it towards said central axis (3a) to define a two-phase tubular yarn (11) given by the coupling of said main filament (12) and said auxiliary yarn (10) and mechanically connected to said further guide (40a) in such a way as to translate with reciprocating motion parallel to, or towards, said rotation axis (4a) with a stroke defined between said peaks,proportionally to the rotation of said rotor (40) around said rotation axis (4a) defining for each said needle (41): - at least one extreme loading position in which said needle (41) is closest to said distributor (7) and / or said thread guide group (3) and / or said feed group (8) and engages said main filament (12) or said auxiliary thread (10),and - at least one extreme unloading position wherein said needle (41) is further spaced from said distributor (7) and / or said thread guide group (3) and / or said feed group (8) and releases said main filament (12) or said auxiliary thread (10); wherein said rotor (40) defines two of said further guides (40a) mutually staggered along said rotation axis (4a) and two groups of said needles (41) wherein said needles (41) of each group are mechanically connected to a respective said further guide (40a) and define a height such that all said needles (41) define said extreme loading position and said extreme unloading position on the same plane perpendicular to said rotation axis (4a).

9. A method for making two-phase tubular yarns with decorative elements implemented by a system (1) for making two-phase tubular yarns with decorative elements according to any of the preceding claims, 5 - said decorative elements being selected from at least one of sequins and beads characterised by comprising: - sequentially pushing one of said decorative elements where said first thread (13) is threaded onto said base (71); - translating said decorative element pushed onto said base (71) along said slot 10 on said base (71) towards said second thread (14) such that said second thread (14) twists around said first thread (13) locally capturing said decorative element on said first thread (13) at said twisting thus forming said intermediate filament (15);- spiral said third thread (16) onto said intermediate filament (15) to make said main filament (12), - make said yarn (11) by combining said main filament (12) with said auxiliary thread (10).; 10. Two-phase tubular yarn (11) made with a process according to the previous claim.