Device for manufacturing fancy yarns

Abstract

A manufacturing device for manufacturing fancy yarn by forming a first yarn thread and a second yarn thread, which are to be interlaced with a decorative yarn thread, as a main yarn thread, comprises: a first yarn supply creel for feeding the first yarn thread; a second yarn supply creel for feeding the second yarn thread; a merging area where the first yarn thread and the second yarn thread merge in an axial direction; a cutter for intermittently cutting the decorative yarn thread to form a decorative fiber; a transfer nozzle for supplying the decorative fiber toward the merging area; and a processing device for bundling the first yarn thread, the second yarn thread, and the decorative fiber after merging.

Description

TECHNICAL FIELD

[0001] The following disclosure relates to an apparatus for manufacturing fancy yarns composed of a main yarn strand and a decorative fiber interlaced with the main yarn strand. BACKGROUND

[0002] For the purpose of adding decorative effects to fabrics or knits, sometimes some regular or irregular changes such as loops, knots, etc. are added to yarns in advance. The yarns with the changes added are often referred to as fancy yarns. So far, many kinds of fancy yarns have been developed.

[0003] The manufacturing method of fancy yarns is not fixed, sometimes changes are given at the stage of spinning process, and sometimes changes are given by processing after the yarns are spun into yarns. When processing is performed, one yarn strand can be processed, or one yarn strand can be interlaced with other yarn strands.

[0004] Patent Literature 1 discloses related art.

[0005] Prior Art Documents

[0006] Patent Literature

[0007] Patent Literature 1: International Patent Application Publication WO2020 / 044493A1 SUMMARY

[0008] According to the technology disclosed in Patent Literature 1, a decorative fiber is supplied from the side to a main yarn strand that is running, and then a secondary yarn strand is interlaced with the main yarn strand, whereby a fancy yarn in which a decorative fiber is interlaced can be manufactured. According to this technology, although a fancy yarn can be manufactured by a simple apparatus, sometimes the decorative fiber does not necessarily wind accurately at the desired position, and in a serious case, the decorative fiber does not wind in the main yarn strand but falls off.

[0009] The following disclosed apparatus is created in view of the above problem.

[0010] One embodiment is an apparatus for manufacturing a fancy yarn by a first yarn strand and a second yarn strand that are to be interlaced to form a main yarn strand and a decorative yarn strand, the apparatus comprising: a first yarn supply creel that supplies the first yarn strand; a second yarn supply creel that supplies the second yarn strand; a merging region where the first yarn strand and the second yarn strand merge in the axial direction; a cutter that intermittently cuts the decorative yarn strand to form a decorative fiber; a transfer nozzle that supplies the decorative fiber toward the merging region; and a processing device that bundles the first yarn strand, the second yarn strand, and the decorative fiber after merging. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a schematic elevation view of the device for manufacturing a fancy yarn of an embodiment.

[0012] Figure 2 is a schematic elevation view of the transfer nozzle for supplying the decorative fiber.

[0013] Figure 3 is a schematic perspective view of the guide for guiding the main yarn strand and the decorative fiber.

[0014] Figure 4 is a schematic elevation sectional view showing the interlacing nozzle as an example of the processing device and the yarn in processing.

[0015] Figure 5 is a schematic elevation sectional view schematically showing the state in which the main yarn strand and the decorative yarn strand are entangled with each other in the guide.

[0016] Figure 6A is a schematic view showing the state of the main yarn strand and the decorative fiber after the confluence region.

[0017] Figure 6B is a schematic view showing the state of the main yarn strand and the decorative fiber before the twisting device.

[0018] Figure 6C is a schematic view showing the state of the fancy yarn after the twisting device. DETAILED DESCRIPTION

[0019] Several exemplary embodiments will be described below with reference to the accompanying drawings. In the following description and the scope of the technical solution, if not specifically stated, the terms upstream and downstream refer to the direction in which the main yarn strand travels, and the term axial refers to the above direction.

[0020] As shown in Figures 6A-6C , the device of the present embodiment can be appropriately used for the purpose of manufacturing a fancy yarn 10 including at least a main yarn strand 1, 3 and a decorative fiber 5c that is intermittently cut and interlaced with them. The fancy yarn 10 is used, for example, for a fabric or a knitted fabric to bring a decorative effect to them.

[0021] Referring mainly to Figure 1 , the device generally has: first and second yarn supply creels 11, 13 that send out first and second yarn strands 1, 3 that constitute the main yarn strand; a confluence region 17 at which the yarn strands 1, 3 and the decorative fiber 5c confluence; a twisting device 23; and a winder 31. After the yarn strands 1, 3 confluence, they travel through the confluence region 17 to the processing device 29.

[0022] The yarn supply reels 11, 13 need not necessarily be arranged symmetrically as shown, but it is preferable to arrange the elements in such a manner that the yarn strips 1, 3 travel in axial symmetry at least in the merging region 17. Yarn strip guides such as rings, rollers, etc. can be arranged as appropriate to guide the yarn strips 1, 3.

[0023] With Figure 1 combined reference Figure 2 , the device is further provided with a component for supplying the decorative fibers 5c to the merging region 17. This supply component is provided, for example, with a third yarn supply reel 15 from which the decorative yarn strip 5 is fed, a transfer nozzle 19 for guiding the air flow Al, and a cutter 21. The decorative yarn strip 5 fed from the third yarn supply reel 15 passes through the transfer nozzle 19 and is intermittently severed by the cutter 21 into decorative fibers 5c, which are then supplied to the merging region 17 by the air flow Al and merged with the yarn strips 1, 3.

[0024] The transfer nozzle 19 is, for example, an elongated hollow tube, for example connected at its upper end to a blower-like air supply device and open at its lower end toward the merging region 17. In principle, the air flow Al generated by the air supply device flows in the transfer nozzle 19 from the upper end toward the lower end at all times during operation of the device. The decorative yarn strip 5 is guided from the decorative yarn strip reel 15 into the transfer nozzle 19 at the upper end and is discharged at the lower end on the air flow Al.

[0025] The cutter 21 is, for example, arranged between the transfer nozzle 19 and the merging region 17. The cutter 21 is, for example, a sickle with a blade. In Figure 2 , the cutter 21 is depicted as arranged outside the transfer nozzle 19, but can also be arranged inside the transfer nozzle 19. The decorative yarn strip 5 is subjected to the tension generated by the air flow Al and is easily severed by contact with the cutter 21.

[0026] In order to facilitate severing, the decorative yarn strip 5 can be supplied intermittently, for which purpose, for example, the decorative yarn strip reel 15 can be provided with a servomotor. Alternatively, a roller guiding the decorative yarn strip 5 can also be provided with a servomotor. Alternatively, a gripper with intermittent action can also be used. The gripper can be arranged outside the transfer nozzle 19 or can also be built into the transfer nozzle 19. If the running decorative yarn strip 5 is blocked by these means, it comes into contact with the cutter 21 and is severed.

[0027] Alternatively, the cutter 21 can not be a sickle, but a pair of scissors or a trimmer, and, in order to drive the cutter, a motor mechanism, a solenoid mechanism, or the like can also be provided as a drive device. Furthermore, or alternatively, a thermal means or a laser can also be used to sever the decorative yarn strip 5.

[0028] Furthermore, or alternatively, the device for severing the decorative yarn strip 5 can also be located closer to the upstream than the transfer nozzle 19.

[0029] In addition, in order to temporarily hold the decorative fiber 5c, a clamp can be provided at a position further downstream than either of the cutting devices. According to this configuration, the decorative fiber 5c that has been cut in advance is prepared and held by the clamp, and after being released by the clamp, the decorative fiber 5c is sequentially supplied to the merging region 17.

[0030] The cut decorative fiber 5c is carried by the air current Al toward the merging region 17. The orientation of the transfer nozzle 19 is adjusted so that the decorative fiber 5c reaches in time when the yarns 1, 3 merge. This adjustment further promotes the decorative fiber 5c to be wound around the yarns 1, 3 without falling off.

[0031] The orientation of the transfer nozzle 19, i.e., the orientation of the air current Al, can also be aligned with the orientation in which the yarns 1, 3 travel after merging. This adjustment further promotes the decorative fiber 5c to be wound around the yarns 1, 3. In particular, either or both of the orientation of the transfer nozzle 19 and the orientation in which the yarns 1, 3 travel can be adjusted to be vertical, in which case the transfer nozzle 19 can be positioned further upward from the vertical than the merging region 17. This further promotes the decorative fiber 5c to be wound around the yarns 1, 3. Of course, it is not necessary to be vertical, and can be inclined or horizontal, in which case the decorative fiber 5c can also be carried by the air current Al to the merging region 17.

[0032] The supply assembly can also not be single, and the device can have a plurality of supply assemblies. In the case where the device has a plurality of supply assemblies, yarns of different kinds that differ in color, thickness, or other attributes can be supplied from each of the supply assemblies.

[0033] The merging region 17 can be an open space as long as the positional relationship described above is ensured, or can be appropriately enclosed. In the case where the merging region 17 is enclosed, for example, as shown in Figure 3 , a guide member that guides the yarns 1, 3 and the decorative fiber 5c can be used.

[0034] The guide member has, for example, a hollow cylinder 39 that extends in the axial direction. The cylinder 39 is open at one end (typically the lower end), and the introduced yarns 1, 3 and the decorative fiber 5c are discharged together. As with Figure 3 , reference should also be made to Figure 5 , the inside of the cylinder 39 has an internal space that extends in the axial direction, and the internal space is sized so that the yarns 1, 3 can rotate slightly around the axial direction inside it. In addition, the cylinder 39 can also have openings 41, 43 for introducing the yarns 1, 3, respectively, on its side surface, for example.

[0035] The decorative fiber 5c is introduced from the other end (usually the upper end) of the cylinder 39 and guided toward the yarns 1, 3. For the introduction, the other end of the cylinder 39 can be continuously opened with the transfer nozzle 19, or can be opened separately from the transfer nozzle 19.

[0036] Further, the other end of the cylinder 39 can also be provided with tubes 45a, 45b, 45c as illustrated. There can be a single tube, or there can be a plurality of tubes 45a, 45b, 45c provided according to a plurality of sets of supply components as illustrated. The tubes 45a, 45b, 45c can be continuously opened with the corresponding transfer nozzles 19, or can be opened separately from the transfer nozzles 19. Further, the tubes 45a, 45b, 45c are continuously connected to the cylinder 39 respectively, and communicate with the inside space of the cylinder 39 in space. The cutter 21 can also incorporate the above-described gripper into these tubes 45a, 45b, 45c, or can be interposed between the tubes 45a, 45b, 45c and the cylinder 39. The combination of the tubes 45a, 45b, 45c and the cylinder 39 guides the decorative fiber 5c toward the yarns 1, 3.

[0037] In order to promote the joining or entangling of the yarns and the fiber in the joining region 17, a rotating nozzle 23 disposed immediately downstream of the joining region 17, particularly immediately downstream of the guide, can be used. The rotating nozzle 23 is an air nozzle that generates an air flow that rotates around the yarns. According to the rotating nozzle 23, the yarns 1, 3 are rotated in the joining region 17, and the decorative fiber 5c is caused to be woven into the yarns 1, 3.

[0038] In order to bundle the yarns and the fiber after joining, a processing device 29, an example of which is an interlacing nozzle, can be used. The interlacing nozzle is disposed at a position further downstream than the joining region 17 and further downstream than the rotating nozzle 23.

[0039] Reference Figure 4 The interlacing nozzle used as the processing device 29 can use a publicly known interlacing nozzle, for example. The interlacing nozzle has a guide hole 51 through which the yarns pass, and an air duct 53 that communicates with the guide hole 51. The air duct 53 is connected to an external air supply device such as a blower, and is tapered at least on the guide hole 51 side, and a relatively high-speed air flow A4 is injected into the guide hole 51. The air flow A4 injected into the guide hole 51 generates a relatively high-speed turbulent flow at the outlet thereof, and the yarns passing through the guide hole 51 are interlaced. In order to further enhance the interlacing, the interlacing nozzle can also have a water nozzle that sprays a small amount of water toward the yarns, or the water nozzle can be disposed at a position further upstream than the interlacing nozzle.

[0040] The yarns 1, 3 and the decorative fiber 5c that have been sprayed with water pass through the interlacing nozzle, and as a result, the yarns 1, 3 and the decorative fiber 5c are bundled and firmly entangled with each other, and a yarn 1, 3 in which the decorative fiber 5c is woven is obtained as shown in FIG. 6. Figure 6CThe fancy yarn 10 is shown. The fancy yarn 10 is drawn by the winder 31.

[0041] Alternatively, instead of the above-described interlacing nozzle, a publicly known interlacing nozzle can be used, or a false twist device such as a hollow spindle or a combination of a friction twist device and a heating device can be used.

[0042] Alternatively, instead of these false twist devices, a real twist device can be used. For example, the real twist device can be a combination of a spinning press and a spindle. In this case, the spindle can function as a winder. By real twist, the decorative fiber 5c is more firmly entangled in the yarn strands 1, 3, and the yarn strands 1, 3 are more firmly bundled.

[0043] Further alternatively, instead of or in addition to the twist mechanisms, heating or bonding can be used. As a heating unit, a heater, a laser, or an ultrasonic wave generating device can be exemplified.

[0044] Referring back to Figure 6C The fancy yarn 10 of the present embodiment has a long hair-like configuration formed by the short decorative fibers 5c formed by cutting. The structure is hair-like, but since it is firmly entangled in the yarn strands 1, 3, the hair does not easily fall off.

[0045] The size of the structure can be freely changed depending on the cutting length of the decorative yarn strands, and in addition, the interval between adjacent structures can be freely changed depending on the cutting interval of the decorative yarn strands. Of course, the size and the interval can be changed depending on different structures. Further, as already described, since two or more decorative yarn strands can be used, different colors can be added depending on different structures.

[0046] According to the present embodiment, for the yarn strands 1, 3 that are combined while rotating, the decorative fibers 5c are inserted at the positions where the yarn strand 1 and the yarn strand 3 are entangled with each other. Therefore, the decorative fibers 5c are prevented from being incorrectly entangled at the desired positions or from not being entangled and falling off.

[0047] The above merely describes several embodiments, and based on the above disclosure, modifications or variations of the embodiments can be made.

[0048] Industrial applicability

[0049] The present application provides a manufacturing device that provides new options to the technology of fancy yarns.

Claims

1. A manufacturing apparatus that manufactures fancy yarn by a decorative yarn thread and a first yarn thread and a second yarn thread that form a main yarn thread by being interlaced with each other, comprising: a first yarn supply creel that feeds out the first yarn thread; a second yarn supply creel that feeds out the second yarn thread; a merging region where the first yarn thread and the second yarn thread merge along an axial direction; a cutter that intermittently cuts the decorative yarn thread to form a decorative fiber; a transfer nozzle that supplies the decorative fiber toward the merging region; and a processing device that bundles the first yarn thread, the second yarn thread, and the decorative fiber after merging, the manufacturing apparatus being characterized in that: the transfer nozzle is directed toward a direction that coincides with the axial direction, and the axial direction is directed toward a vertical direction, and the transfer nozzle is disposed at a position that is vertically above the merging region.

2. The manufacturing apparatus according to claim 1, further comprising a guide that is a hollow guide disposed at the merging region, and that has an internal space that extends along the axial direction and in which the first yarn thread and the second yarn thread can rotate around the axial direction, and a passage that communicates with the internal space and guides the decorative yarn thread toward the first yarn thread and the second yarn thread.

3. The manufacturing apparatus according to claim 1, wherein the transfer nozzle is configured to emit an air current toward the merging region and to cause the decorative yarn thread to be carried on the air current.

4. The manufacturing apparatus according to any one of claims 1 to 3, wherein the processing device includes one or more components selected from the group consisting of an interlacing nozzle, an interweaving nozzle, a hollow shaft, and a real twisting device. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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