JPH01261170A - Untwisting device for thread in ending device - Google Patents

Abstract

PURPOSE:To facilitate untwisting of sized thread with an ending device used enabling the sized thread to perform its ending by blowing a liquid component by a liquid supply means to a thread end, sucked into a nozzle, and melting starch of the sized thread so as to facilitate the untwisting. CONSTITUTION:Sized threads YP, YB are cut by thread cutters 10, 13, and the sized thread YP, YB is sucked in its thread end respectively into untwisting nozzles 16, 17. Since a liquid supply means 21 opens its opening and closing valve 26 blowing a solution 22 in an atomized state with pressure air of a gas supply means 18 to the thread end of the sucked sized threads YP, YB, the thread end, melting its adhering starch, is untwisted. Next by controlling the opening and closing valve 26, the pressure air is supplied into the untwisting nozzles 16, 17 for the time being after blowing the solution 22, and the thread end is dried further sufficiently untwisted. The thread end of the untwisted sized threads YP, YB is drawn and arranged in an ending hole 9, performing ending by action of a flow of turning air. Thus using an ending device, the sized thread enables its ending to be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a yarn untwisting device in a yarn splicing device, and more particularly to an untwisting device that can easily untwist sized yarn. [Prior Art] Warp yarns on a loom are usually glued to increase yarn strength. Conventionally, when warp thread breakage occurs,
The threads were tied by hand. Instead of this thread knot, Japanese Patent Publication No. 5B-47108. If the yarn splicing device is used to splice the yarn, such as that disclosed in Japanese Patent Publication No. Sho F32-3742, it is convenient because the yarn can be spliced without knots quickly. [Problem to be Solved by the Invention] By the way, the above-mentioned yarn splicing device untwists the yarn ends and then rotates the untwisted yarn ends with a swirling air flow to perform yarn splicing. . However, since the warp yarns are glued, the yarn splicing device cannot untwist the yarn ends, and therefore cannot perform yarn splicing. The purpose of the present invention is to solve the above-mentioned problems, and to provide a thread untwisting device for a yarn splicing device that can easily untwist a sized yarn and splice the sized yarn using the splicing device. The purpose is to provide equipment. [Means for Solving the Problems] In order to achieve the above object, the present invention includes an untwisting nozzle for guiding the ends of cut yarns, and a gas supply means for supplying airflow into the nozzle. , a liquid supply means for spraying and pulling liquid onto the yarn end sucked into the nozzle, and a liquid recovery means connected to the downstream side of the nozzle for recovering the liquid scattered inside the nozzle. It is equipped with means. Further, the untwisting nozzle is equipped with a heating means for evaporating the liquid adhering to the inside of the untwisting nozzle. [Function] When an air flow is supplied into the untwisting nozzle by the gas supply means, the ends of the cut yarns are sucked into the nozzle. A liquid component is sprayed by the liquid supply means onto the end of the yarn sucked into the nozzle, and when the yarn is a glued yarn, the glue is dissolved by this liquid component, making it easy to untwist the yarn. Therefore, it becomes possible to splice the sized yarn using the splicing device. The excess liquid scattered into the nozzle is recovered by a liquid recovery means connected to the downstream side of the nozzle. Further, by providing the untwisting nozzle with a heating means, the liquid adhering to the inside of this nozzle is evaporated. [Embodiment 1] An embodiment of the present invention will be described below in detail based on the accompanying drawings. FIG. 2 shows a yarn splicing device 1 installed in an automatic winder. Above this yarn splicing device 1 is a package P.
However, a bobbin B is provided below. Further, this yarn splicing unit 1 is equipped with a suction arm 2.3, and when a thread breakage occurs in the thread (sized thread) connected from the bobbin B to the package P, the suction arm 2.3 is activated by a mechanism (not shown). The bobbin side yarn YB and the package side yarn YP are each sucked and held and guided to the front of the yarn splicing device 1. On one side of this yarn splicing Vt11, a yarn YB guided to the front of the yarn splicing device 1 by a suction arm 2.3 is provided.
A thread guide lever 4.5 is rotatably provided via a shaft 6 for catching the YP and guiding it further inward. The above-mentioned yarn YP is clamped by a clamping device 7 provided at the yarn splicing unit 1. Side groove of fork guide 8, thread splicing hole 9. It reaches the suction vibrator 3 through the thread cutting device 10 and the right groove of the fork guide 11. - On the other hand, the thread Y8 is connected to the clamping device 12 provided in the thread joining [1]. Left side groove of fork guide 11, thread splicing hole 9. Thread cutting device 13
．． Suction pipe 2 via the left groove of fork guide 8
It is designed to lead to. Clamping device 17.1 above
2 is thread YP. Grab the YB and cut the threads as described above! 10.13 is designed to cut the gripped threads YP and YB. The ends of the cut yarns YP and YB are untwisted in close proximity to each other.
14.15 into the untwisting nozzles 16°17. Figure 1 shows the above yarn splicing device! 1 shows the untwisting device 14 on the glued yarn YP side in No. 1. The untwisting nozzle 16 of this untwisting device @14 is formed of a cylindrical body having an inner diameter larger than the diameter of the sized yarn YP in order to guide the yarn end of the sized yarn YP. This untwisting nozzle 16 has the above-mentioned glued yarn Y.
Gas supply means 18 for sucking the yarn end of P is provided. The gas supply means 18 includes a jet hole 19 formed through the untwisting nozzle 16, a supply pipe 20 connected to the jet hole 19, and a pressurized air supply source connected via the supply pipe 20. (not shown). The ejection hole 19 is formed to penetrate the untwisting nozzle 16 obliquely toward its tip and eject a swirling air flow. Further, the gas supply means 18 is equipped with a liquid supply means 21 for spraying a liquid onto the end of the sized yarn YP sucked into the untwisting nozzle 16. This liquid supply means 2
1 includes a solution tank 23 containing a solution 22 for dissolving the glue of the sized yarn YP, a suction pipe 24 for sucking the solution 22 in the tank 23, and an injector 25 interposed in the supply pipe 20; An on-off valve 26 interposed in this suction pipe 24
It consists of As the solution 22, water, warm water, or a solvent that decomposes the glue (for example, caustic soda with lactogen added) is used. The supply pipe 20 is set to be supplied with pressurized air from the pressure supply source from the time when the yarn cutting device 10.13 is activated until the yarn splicing starts. ? The Of'l valve 26 is controlled to be closed before the supply of pressurized air is stopped. Further, the tip of the untwisting nozzle 16 is provided with a liquid recovery means 27 for recovering the liquid scattered inside the nozzle 16 by the liquid supply means 21. This liquid recovery means 27 is connected to the tip of the untwisting nozzle 16 and includes a hose 28 whose arm is bent downward, and this hose 2
8 and a bottomed cylindrical recovery tank 29 connected thereto. Furthermore, the hose 28 of the untwisting nozzle 16
A heating means 30 for evaporating the liquid adhering to the inside of the nozzle 16 is provided near the connection part along its outer periphery. This heating means 30 is formed of a heating coil, for example, and is connected to a power source (not shown). Further, the thread shifting lever 4.5 is for sizing thread YP. After the untwisting of the Y8 yarn ends is completed, the yarn turns further to align the yarn ends with the splicing hole 9. This thread splicing hole 9
is connected to a pressure supply source (not shown) via a vibrator 31. In addition, the solution J for the glued thread YB side! The device 15 is also formed in the same manner. Next, the operation of the above embodiment will be described. Since the gas supply means 18 supplies a swirling air flow from its jet hole 19 into the untwisting nozzle 16.17, the sized yarn YP, YB cut by the yarn cutting device 10.13
The yarn ends of are respectively sucked into the untwisting nozzle 16,17. A gas supply means 18 is provided at the yarn ends of the sucked sized yarns YP and YB.
together with the pressurized air, the on-off valve 26 of the liquid supply means 21
is opened and the solution 22 is sprayed onto the award certificate, thereby melting the glue adhering to the thread ends and untwisting the thread ends. After spraying the solution 22, pressurized air is supplied into the untwisting nozzles 16 and 17 for a while by means of the intervalve 26 i and IJ III, so that the yarn ends are dried and are further untwisted sufficiently. will be done. And the untwisted sizing yarn YP, Y
The yarn ends of B are aligned in the splicing hole 9 and spliced by the action of the swirling air flow. In this way, the solution is sprayed onto the yarn ends of the sized yarn to dissolve or decompose the glue, and then the yarn ends are untwisted, so even sized yarn can be easily untwisted. Therefore, the sized yarn can be spliced using the splicing device. Further, since the sized yarn can be spliced using the splicing device in this way, it becomes possible to install a splicing device for splicing the warp yarns in the loom as well. Furthermore, since the solution is sprayed within the untwisting nozzles 16 and 17, there is no risk of the solution scattering and contaminating the outside. After the yarn splicing, a test was conducted to measure the yarn strength at the yarn joint, and as a result, it was confirmed that the yarn had high yarn strength. Also, when removing the glue by melting it, if you leave a little bit of glue at the end of the thread, the glue will harden after the thread is spliced, resulting in even stronger thread strength. In addition, with respect to threads other than sizing threads, for example, by spraying a liquid on strong threads in advance, the threads become softer and the entanglement at the time of thread splicing is improved. Furthermore, as liquid adheres to the thread, the quality of the thread increases,
The movement of the yarn (swirling, variation, etc.) is promoted, and it is also strongly twisted to create a strong seam. The excess liquid scattered in the untwisting nozzles 16.17 is then transferred to the collection tank 2 through the hose 28 of the liquid collection means 27 connected to the downstream side of each of these nozzles 16.17.
It will be housed within 9. In this way, the solution 22 is sprayed onto the sized yarns YP and YB in the untwisting nozzle 16 and 17, and is recovered by the liquid recovery means 26, thereby preventing the generation of debris in peripheral equipment. It is. Furthermore, each of the untwisting nozzles 16 and 17 is provided with heating means 30.
are provided, so that even if liquid adheres to the inside of these nozzles 16.17, it will evaporate due to the temperature and the yarn ends of the glued yarns YP and Y8 will not adhere to the inside of these nozzles 16.17. This prevents the inner bodies of these nozzles 16 and 17 from rusting. [Effect of the Invention J] To summarize, according to claim 1 of the present invention, the yarn end of the cut yarn is sucked into the untwisting nozzle, and a liquid is sprayed onto it by the liquid supply means to dissolve the glue. Since the yarn ends are untwisted, the yarn ends can be untwisted reliably and easily, and thereby the sized yarn can be spliced using the splicing device. In addition, with respect to threads other than sizing threads, for example, by spraying a liquid on strong threads in advance, it becomes soft and the entanglement at the time of thread splicing can be improved. Furthermore, as liquid adheres to the thread, the mass of the thread increases,
The movement of the yarn (turning, variation, etc.) is promoted, and it is also possible to twist strongly and create a strong seam. Furthermore, the excess liquid scattered within the nozzle is recovered by the liquid recovery means connected to the downstream side of the nozzle, thereby making it possible to prevent peripheral equipment from rusting. Further, according to claim 2, the heating means evaporates the liquid adhering to the inside of the untwisting nozzle, and the yarn end is placed inside the nozzle.
This can prevent the nozzle itself from rusting.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing an embodiment of the yarn untwisting device in the yarn splicing device of the present invention, and FIG. 2 is a front view showing the yarn splicing device. In the figure, 14 (15) is an untwisting device, 16 (17 is an untwisting nozzle), 18 is a gas supply means, 21 is a liquid supply means, 27 is a liquid recovery means, and 30 is a heating means.

Claims (1)

[Scope of Claims] 1. An untwisting nozzle that guides the yarn end of the cut yarn, a gas supply means for supplying an air flow into the nozzle, and a liquid component to the yarn end sucked into the nozzle. A yarn untwisting device for a yarn splicing device, comprising: a liquid supply means for spraying the liquid; and a liquid collection means connected to the downstream side of the nozzle for recovering the liquid scattered inside the nozzle. 2. The yarn untwisting device in a yarn splicing device according to claim 1, wherein the untwisting nozzle is provided with a heating means for evaporating liquid adhering therein.