JPS5827035Y2 - Fluid crimping device for yarn - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fluid crimping device for thermoplastic synthetic fiber yarn, and more specifically, the yarn is forced into a cylindrical compression filling chamber by a jet of heated fluid, and the yarn is agglomerated in the compression filling chamber. The present invention relates to a bulky crimping device that causes disturbance, buckling, etc. to occur in the yarn by colliding with the yarn.

Such a device is generally also called a fluid indentation processing device, and is described in, for example, Japanese Patent Laid-Open No. 47-25450.

This device is capable of high-speed crimping, and has been studied from various points of view as a crimping device with good production efficiency for processing yarn for clothing, interior decoration, and the like.

However, in the conventional crimping device,
As described in Publication No. 25450, cooling gas or fluid is dispersed from the exit side of the compression and filling chamber in the direction opposite to the direction in which the yarn is pulled out, in order to cool the yarn shaped in the compression and filling chamber. A method of blowing gas has been adopted, but a problem arises in that the cooling method used for high-speed processing does not provide sufficient cooling.

The present invention has been devised in view of this problem, and it is an object of the present invention to provide a fluid crimping device that provides a sufficient cooling effect with a simple device.

That is, the present invention has (a) a heated fluid injection hole opened to the yarn guide hole from the upstream side of the yarn, and a small hole at the tip that jets the yarn together with the heated fluid into the compression filling chamber on the downstream side. (b) a compression filling chamber consisting of a cylindrical space surrounded by a plurality of radially arranged blade plates; (C) a cylindrical space having a yarn outlet hole at the lower end;
A plurality of small holes for cooling water inflow are formed in the upstream circumferential wall of the cylindrical space, a plurality of small holes for introducing cooling gas are formed in the downstream circumferential wall, and a plurality of small holes for introducing cooling gas are formed in the circumferential wall in the middle of the cylindrical space. This is a fluid crimping device for yarn, characterized in that each part of the cooling chamber, which has a plurality of small holes for discharging cooling gas, are successively connected and integrally constructed.

Hereinafter, an example of the present invention will be explained in detail with reference to the drawings.

In the figure, reference numeral 1 denotes a heated fluid injection nozzle, which has a fluid injection hole 12 that opens into a thread guide hole 11 passing through the center, and a fluid supply port 14 that is connected to an annular fluid reservoir 13 connected to the fluid injection hole 12. .

A small hole is provided at the tip of the nozzle through which the yarn is ejected together with the heating fluid into the compression filling chamber on the downstream side.

Reference numeral 2 denotes a compressed filling chamber, which is supported by holding members 21 and 22 and consists of a cylindrical space formed by 12 vanes 23 (FIG. 2) arranged radially.

The fluid outlet is formed by a gap between each vane plate 23.

3 is a cooling chamber, which includes a cylindrical main body 31. It has a lid part 33 having a yarn outlet hole 32 and a cooling gas supply port 35 connected to a cooling gas reservoir 34.

36 is a cooling gas introduction hole provided at the bottom of the main body 31; 37
is a cooling gas exhaust hole provided in the middle part of the main body 31;
A plurality of each are provided on the peripheral wall of the main body 31.

4 is a cooling water jacket having a cooling water supply port 41, and is provided surrounding the outer periphery of the upper part of the cooling chamber 3.

A plurality of cooling water inflow holes 42 are bored in the upper peripheral wall of the main body 31 corresponding to the cooling jacket 4 .

Further, a yarn outlet hole 32 is provided at the lower end of the cooling chamber 3.

Next, the operation of this embodiment device will be described.

The yarn Y is sucked and jetted by the fluid jet nozzle 1 and collides with the yarn mass W deposited in the compressed filling chamber 2, and is given disturbance due to turbulence and crimp due to buckling.

The heated compressed fluid injected from the injection hole 12 is discharged in the radial direction from the discharge port in the gap between the vanes 23 of the compression filling chamber 2 .

The yarn mass W accumulated in the compression filling chamber 2 extends into the cooling chamber 3 and is taken out from the yarn outlet hole 32 at the lower end of the cooling chamber.
The compressed cooling gas introduced from the cooling gas introduction hole 36 in the lower part of the cooling chamber 3 acts to push up the yarn mass W, and is discharged to the outside from the discharge hole 37 provided in the middle part of the main body 31.

Generally, in such fluid indentation processing, in order to maintain uniform quality of processed yarn (crimp degree, dyeing degree, etc.), it is necessary to The distance at which the object collides with the object has a large influence, and it is necessary to keep this constant (Japanese Patent Application Laid-Open No. 52-114758, Japanese Patent Publication No. 53-1)
Publication No. 7702).

In this embodiment, many exhaust holes 37 are bored in the main body of the cooling chamber so that cooling gas is introduced from below.
When the yarn mass W falls downward, most of the discharge holes 37 are blocked, and the gas pressure in the cooling chamber increases, pushing up the yarn mass W. Conversely, when the yarn mass W rises, many discharge holes 37 are blocked. Since the cooling gas is discharged from 37, the gas pressure decreases and the yarn mass W
descends.

As a result, the position of the yarn mass W, that is, the collision point of the yarns, functions to be kept constant by the action of the cooling gas pressure.

The yarn mass W is thus cooled by the cooling gas, but
Cooling with cooling gas alone is insufficient, and the cooling situation varies somewhat as described above, but in the present invention, cooling water is supplied from the cooling water jacket 4 to the main body 3 through the cooling water inlet hole 42.
Since the cooling water is directly applied to the yarn mass immediately after leaving the compression filling chamber, the yarn and the yarn mass can be reliably and effectively cooled.

This makes it possible to solve quality problems such as insufficient sets due to incomplete cooling.

In addition, a cooling water jacket is installed around the cylindrical cooling chamber,
Reliable cooling can be guaranteed with a simple structure that only requires drilling a cooling water inlet hole.

The yarn to which water has been applied in this manner comes into contact with the cooling gas on the downstream side, so that cooling is further accelerated, and the yarn is taken out from the yarn outlet hole with the crimp well set.

In the above-described embodiment, the cooling water jacket 4 is provided around the entire circumference of the cooling chamber, but the jacket 4 does not necessarily need to be provided around the entire circumference, and may have an appropriate shape.

The point is that the cooling water should be applied directly and uniformly to the threads or thread clusters in the cooling chamber so that it flows out and spouts out.

Cooling water jacket installation position9. The position and number of inflow holes can be appropriately selected depending on the brand of processed yarn, processing conditions, etc.

The device of the present invention, such as the slant-up device, is suitable for crimping thick denier yarns at high speeds. For example, it is also possible to crimp crimped yarns for carpets at high speeds of about 3000 m/min. be.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of one embodiment of the present invention, and Figure 2 is its
- It is an X arrow view. 1 is a fluid injection nozzle, 2 is a compression filling chamber, 3 is a cooling chamber, 4
is a cooling water jacket, and 42 is a cooling water inflow hole.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A fluid injection nozzle having a heated fluid injection hole opened in the yarn guide hole, and a small hole at the tip for injecting the yarn together with the heating fluid into the compression filling chamber on the downstream side. , (b) a compression filling chamber consisting of a cylindrical space surrounded by a plurality of radially arranged blade plates; (C) a cylindrical space having a thread outlet hole at the lower end;
A plurality of small holes for cooling water inflow are formed in the upstream peripheral wall of the cylindrical space, a plurality of small holes for introducing cooling gas are formed in the downstream peripheral wall, and A fluid crimping process for yarn, characterized in that a cooling chamber having a plurality of small holes for discharging cooling gas is formed in the peripheral wall and is integrally constructed by sequentially connecting them from the upstream side to the downstream side. Device.