JPH0641349B2 - Yarn carrier pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a yarn transport pipe, in particular, a yarn transport pipe that transports continuously running yarns to a distance and enables threading after transport. Regarding More specifically, the present invention determines a plurality of yarns individually spun from an existing spinning machine, for example, a spun-dyed yarn group in a spun state to be collected in one place and combined. The present invention relates to a yarn conveying pipe for surely conveying a yarn on a formed yarn path and delivering the yarn.

<Prior Art> Conventionally, yarns spun by each spinning machine are gathered at one place, and the spun yarns are spun on a plurality of spinning machines to be combined. Generally, such an operation is performed by a plurality of workers pulling the yarn spun by each spinning machine by a yarn suction tool (suction gun) provided in each spinning machine, and collecting these yarns at one place. After collecting all the yarns into one suction gun, it was taken into the next operation.

However, in such an operation, a plurality of spun yarns are disturbed and occupy a work space, so that workability is extremely poor. Moreover, in order to manually collect the yarns spun from each spinning machine in one place, the worker has to run between the spinning machines, and the work itself is dangerous.

For this reason, Japanese Patent Application No. 61-17 filed by the present inventors in advance.
870 (Japanese Patent Publication No. 3-17932) and Japanese Patent Application No. 61-
No. 17871 (JP-A-62-177251), a plurality of yarns are spun in each spinning machine by using a polymer having a different color between melters, and the spun yarns are combined and processed. There has been a long-felt need for a yarn-conveying pipe capable of suction-conveying spun yarns safely with a good workability and automatically conveying a long distance across a plurality of spinning machines in the spinning-based mixed fiber processing.

<Purpose of the Invention> The present invention has been made in view of the above background, and is determined in advance by extending a spun yarn continuously traveling at a high speed of 500 m / min or more across a plurality of spinning machines. Another object of the present invention is to provide a yarn transport tube for threading the yarn on a roller or a winder after the yarn is transported along a yarn path.

The present invention has the following configurations in order to achieve the above object.

<Structure of the Invention> That is, a yarn conveying tube comprising the following members a to d.

a. A cylindrical thread guide hole having a fixed length of at least 1 m and a hole diameter of 10 mm or more, b. A laminar flow type suction gun attached to the tip of the tubular thread guide hole, c. An exhaust hole radially provided at a position immediately downstream of the injection hole of the suction gun in a direction orthogonal to the tubular thread guide hole; and d. A vortex type suction gun which is detachably fitted to the end of the cylindrical thread guiding hole and becomes a handy thread hook when detached.

<Example> One of the major features of the above-described configuration is that, when carrying a spun yarn, the length of a yarn conveying pipe, which has never been attempted in the past, and the detachable attachment provided at the end of the pipe. It is in combination with the whirlpool suction gun.

Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an example of the yarn transport tube of the present invention.

In the figure, reference numeral 1 denotes a main body of a yarn conveying tube positioned on a yarn path of a traveling yarn, and a laminar flow type suction gun for sucking the traveling yarn and drawing the traveling yarn into a pipe of the main body at a tip thereof. 2 is attached. The suction gun 2 is provided with a thread introduction hole (suction hole) 3 in the center thereof along the longitudinal direction, and a slit-shaped compressed air injection hole 4 is formed so as to surround the thread introduction hole 3. There is. Immediately downstream of the injection hole 4, a plurality of exhaust holes 5 are arranged radially in a direction perpendicular to the yarn introducing hole 3 along the axial direction. In addition, 6 is a laminar flow type suction gun 2 from a compressed air source (not shown).
It is a supply hole for supplying compressed air to. Further, 7 is a vortex type suction gun provided at the end of the carrier tube body 1, which is detachably fitted to the carrier tube body 1.

Here, in the present invention, since the tubular yarn guide hole 3 is usually used in a length of 1 to 10 m to convey the traveling yarn over a long distance, the diameter thereof is set to at least 10 mm or more and is conveyed. It is preferable to reduce the flow line frictional resistance. However, if the diameter is too large, it will be disadvantageous in terms of operation, so it is preferable to set it to 50 mm or less.

Further, in the present invention, an exhaust hole 5 is provided at a position immediately downstream of the injection hole 4 for discharging the compressed air ejected from the injection hole 4 to the outside of the yarn transport tube main body 1. That is, the exhaust hole 5 plays a role of releasing the compressed air ejected from the ejection hole 4 in order to secure the negative pressure inside the yarn conveying tube 1. If the compressed air supplied from the ejection holes 4 is allowed to flow into the yarn conveying pipe body 1 without being released from the exhaust hole 5, the negative pressure state of the yarn conveying pipe body 1 is broken. Further, the flow rate of air supplied from the tubular thread guide hole to the vortex type suction gun 7 is
There is a limit. For this reason, when trying to flow a flow rate exceeding the limit amount into the thread guide hole portion of the vortex flow type suction gun 7, in the worst case, a back flow occurs. Therefore,
It becomes impossible to convey the yarn along with the conveying flow in the yarn conveying pipe. For this reason, the flow rate exceeding the limit cannot be flown from the laminar flow type suction gun 2.
You can get rid of these restrictions by allowing air to escape from.

Here, the size and number of the exhaust holes 5 are not particularly limited, but the air supplied from the injection holes 4 and the yarn suction ports of the laminar flow type suction gun 2 is sufficiently discharged. In addition, it is preferable that the size and the number are sufficient.

Further, in the present invention, the laminar flow type suction gun 2 is provided at the tip of the yarn conveying pipe, and the vortex flow type suction gun 7 is provided at the end thereof. This is because the laminar flow type suction gun 2 at the tip reliably catches the running yarn, while the vortex type suction gun 7 at the end converges the yarn, and the action of the vortex draws the yarn in a spiral shape. Therefore, it is intended to increase the take-up tension of the yarn. That is, the laminar flow type suction gun 2 having a large suction and catching ability of the yarn and the vortex flow type suction gun 7 having a great yarn taking-up ability are properly used in places where respective functions are required.

Here, as shown in FIG. 2, the vortex type suction gun 7 has a plurality (usually 2 to 8) of injection holes 8 tangentially (eccentrically) to the yarn guide hole 9. preferable. Specifically, six 4.0 mmφ injection holes 8 with respect to the thread guide hole 9 (8 mmφ) are inclined at 30 ° in the traveling direction, and
Decentered is most suitable. Reference numeral 11 is a supply hole for supplying compressed air from a compressed air source (not shown).

In this embodiment, the vortex type suction gun 7 is used.
Is detachably fitted and fixed to the thread carrier tube main body 1 by the push-in bolt 10, so that it can be used as a single handy thread hook if the push-in bolt 10 is loosened and separated from the thread carrier tube body 1. Therefore, when the delivery of the yarn is completed, the vortex type suction gun 7 can be detached from the yarn conveying tube main body 1, and the traveling yarn that has been sucked as it is can be hooked on the roller or the like. Here, the laminar flow type suction gun attached to the tip of the yarn transport tube main body and the yarn transport tube main body are left as they are while being positioned on the yarn path of the spun yarn.

In this embodiment, the vortex type suction gun 7 is used.
Is fitted to the carrier tube body 1 and fixed by the push-in bolt 10, but this fixing means may be other connecting means.

<Effects of the Invention> According to the present invention, the running yarn can be reliably and easily sucked, and the long distance can be stably conveyed. For example, with a yarn conveying pipe as shown in FIG.
A spun yarn of 4000 denier running at a speed of 1 / min was surely sucked and could be conveyed to a godet roller of another spinning machine 5 m away. Further, the vortex flow type suction gun detachably attached to the terminal end was detached and used as a single thread hook, and the thread could be easily hooked on the godet roller. As a result, the existing spinning machine can be used to efficiently carry out the splicing operation of 2 to 4 spun yarns while ensuring the safety of the operator.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a yarn carrier pipe of the present invention, and FIG.
It is sectional drawing of the AA line of FIG. 1 ... Carrier tube main body, 2 ... Laminar flow type suction gun, 3,
8 ... Injection hole, 5 ... Discharge hole, 7 ... Eddy current type suction gun

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-48-77136 (JP, A) JP-A-60-126327 (JP, A) Practical development Sho-57-138855 (JP, U) JP-B 47- 36204 (JP, B1) JP-B 51-2996 (JP, B1) JP-B 51-17635 (JP, B1) JP-B 57-8027 (JP, B2) JP-B 58-11810 (JP, Y2)

Claims (1)

[Claims] 1. A yarn carrier tube comprising the following members a to d. a. A cylindrical thread guide hole having a fixed length of at least 1 m and a hole diameter of 10 mm or more, b. A laminar flow type suction gun attached to the tip of the tubular thread guide hole, c. An exhaust hole radially provided at a position immediately downstream of the injection hole of the suction gun in a direction orthogonal to the tubular thread guide hole; and d. A vortex type suction gun which is detachably fitted to the end of the cylindrical thread guiding hole and becomes a handy thread hook when detached.