JPH0643646B2 - Method for manufacturing balloon control ring for spinning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a spinning machine, a twisting machine, a ring balloon used for twisting a tire cord, a balloon for a spinning machine used for ballooning control of a straight twisting machine, etc. The present invention relates to a method for manufacturing a control ring.

[Conventional technology]

BACKGROUND ART Conventionally, a balloon control ring is formed by twisting a plurality of strands having a circular cross section to form a twisted wire, and the twisted wire is formed into an annular shape, and its ends are directed outwards so as to form a yarn guide port. The end faces were integrally fixed by means such as welding or adhesion so that the twisting production would not be unraveled. (Jpn. Pat. Appln. KOKAI No. 52-53778) The balloon control ring has a twisted wire in an annular shape,
The yarn guide ports are formed by overlapping the ends of each other outwardly in a cross shape, and the end faces of the ends are welded so that the twisted structure cannot be unraveled.

In addition, the outer diameter of the core-like object having a diameter of 2 mm or more, and the diameter of 0.5-
A balloon control ring in which a plurality of 3.0 mm thin wires are wound has been considered. (Actual exploitation 49-82020
The balloon control ring is formed by winding a thin wire around the outer periphery of a core-like object and then forming it into a ring shape.

In the former balloon control ring, the twisted wire is formed into an annular shape, then cut, the both ends are crossed to form a yarn guide port, and then each end face portion is welded, so the twisted wire is formed when forming the annulus. Each strand to be free is in a free state,
The stress applied to the strands is different between the strands located on the inner peripheral surface side of the annulus and the strands located on the outer peripheral surface side of the annulus, resulting in gaps between the strands and changes in the twist angle. The quality of the control ring was not stable, which caused yarn breakage and molten yarn generation.

Further, in the latter balloon control ring, since the fine wire is tightly wound around the outer periphery of the core-like object, the above tendency becomes more remarkable.

Therefore, when spun using each of the above-mentioned balloon control rings, the yarn is caught between the strands, or the yarn comes into irregular sliding contact with the strands, which causes yarn fluff or melted yarn. Then, there was a problem that the quality of the yarn was deteriorated.

[Structure of Invention]

The present invention has been made to eliminate the above-mentioned problems, and a plurality of side wires having a wire diameter of 1.2 mmφ to 1.5 mmφ is provided around a core wire made of one single wire having a wire diameter of 3 mmφ to 5 mmφ. A twisting step of producing a twisted wire by twisting the twisted wire so that the twist angle is 20 ° to 35 °, and a constant-size cutting step of cutting the twisted wire produced in the above twisting step into a certain length. An end-welding step of stopping both ends of the short stranded wire cut into the above-mentioned fixed length so as not to disperse, and a ring forming a ring by winding up the short stranded wire whose both ends are welded to a required diameter. A ring forming step in which winding steps are sequentially arranged, and a welding step of joining a mounting member to a machine base to one or several places on the inner peripheral surface or the outer peripheral surface of the ring obtained by the ring forming step. The twisted structure is stabilized by sequentially passing through each of these steps, and It is intended to manufacture a balloon control ring for a spinning machine, which is capable of spinning a good quality yarn having no wing or molten yarn.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the method for manufacturing a balloon control ring for a spinning machine according to the present invention comprises at least a twisting step, a sizing cutting step, an end welding step, a winding step, and a welding step of welding a mounting member. ing.

In the twisting process, as shown in FIG. 2, the supply reel (2) for feeding the core wire (1) and the side wire twisted around the core wire (1).
Rotating body with multiple supply reels for feeding (3) (4)
A tubular type twisting machine (8) composed of a capstan roller (6) for pulling the twisted wire (5) and a take-up reel (7) for winding the twisted wire (5) is used. For example, 12 side wires (3) having a wire diameter of 1.5 mmφ and a twist angle of 25 are arranged around one core wire (1) having a wire diameter of 5 mmφ shown in FIG. The twisted wire (5) is formed by twisting the wires so that the twisted wire has a twist angle of 5 °.

Although the tubular type twisting machine is used in the above twisting step, a buncher type twisting machine can also be used.

The sizing process is a twisted wire twisted in the above twisting process.
(5) pulling out from the reel, using a cutting device such as a press, a cutting machine, etc., a rough cutting step of cutting to a fixed length, and a predetermined length of the twisted wire roughly cut into the above fixed length It is composed of a constant-size cutting step of cutting into pieces.

In the above-mentioned constant-size cutting step, the required length of stranded wire was obtained in two steps.However, the stranded wire (5) drawn from the reel was cut at one time so that the stranded wire (5) had the required length. It is also possible to obtain the wire in one step.

End welding process, both ends of the stranded wire of the required length obtained in the above-mentioned sizing cutting process, the core wire (1) is welded by gas welding and welded to the entire end of the stranded wire, Prevent the tip of 5) from falling loose.

The welding means is not limited to gas welding, and other welding means such as plasma welding or arc welding may be used.

In the winding process, as shown in FIG. 4 (a), the inner surface has a substantially perfect circle, and both ends (8a) and (8b) are crossed with each other to form an intersection A, which is wound up by a mounting machine. Is it a ring-shaped ring, or is it necessary to process both ends (9a), (9b) in advance by swaging, grinding, etc. so that they become thinner toward the tip as shown in Fig. 4 (b)? ,
Alternatively, a rod-shaped body of unprocessed stranded wire with both ends welded is rolled up by a mounting machine so that the inner surfaces are substantially circular and the both ends (9a) and (9b) overlap each other, and the both ends (9a),
Gas welding at one place or several places in the overlapping part of (9b),
It is bonded and fixed by a welding means such as plasma welding or arc welding to form a ring-shaped ring. In addition, it is preferable that the above-mentioned welding point is provided on the side that does not come into contact with the thread.

The welding process is performed on the ring-shaped ring formed as described above.
As shown in FIGS. 4 (a) and 4 (b), the attachment member (10) to the machine base is integrally fixed by welding means such as gas welding or electric welding to form the balloon control ring (11).

In the welding process, the mounting member (10) is attached to the outer peripheral surface of the ring.
However, if the outer circumference of the ring is the contact surface with the thread, the mounting member is fixed to the inner surface of the ring, and the number of mounting members is not limited to one It is also possible to install at regular intervals.

The balloon control ring has been shown as an example of a balloon control ring used in a ring twisting machine, but a balloon control ring used for tire cord twisting is similarly formed. In the balloon control ring, the core wire (1) is composed of one metal wire such as hard steel wire and iron wire, and the side wire (3) is hard steel wire and stainless steel wire (for example, S
US304, SUS410), and is composed of 6 to 12 pieces.

The diameter of the core wire (1) and the side wire (3) is determined by the twist angle of the twisted wire, the inner diameter of the annulus, etc., but the diameter of the core wire (1) is 3 mmφ ~
5mmφ, preferably 3mmφ, 5mmφ is used, and the side line (3)
Wire diameter is 1.2mmφ-1.5mmφ, preferably 1.2mm
φ and 1.5 mmφ are used.

The twist angle of the twisted wire is 20 ° to 35 °, and preferably 20 °, 25 ° and 35 °.

In the above, when a stainless wire is used as the side wire (3), a surface hardening treatment such as a tuftride treatment or a gas nitriding treatment can be applied in order to improve the wear resistance and the oxidation resistance of the balloon control ring.

The surface hardening treatment step is preferably performed after the balloon control ring is formed, but it may be performed in an intermediate step.

Furthermore, scratches and burrs may occur on the surface of the side wire during the transportation of each process such as the twisted wire process, the sizing cutting process, the welding process and the like, but in this case, at least after each process or the final process. It is also possible to arrange a polishing process such as rough polishing finish and finish polishing after any one process to remove scratches or scratches on the surface of the balloon control ring.

A rotary barrel, a vibrating barrel, or the like is used as the polishing means, and buffing is particularly effective for finish polishing.

When barrel-polishing a plurality of balloon control rings (11), if the mounting members (10) of the plurality of balloon control rings (11) are integrally fixed with bolts or wires, they will contact each other. Since it does not come into contact with or entangle with each other, it is possible to effectively perform polishing.

Next, a tire cord produced by a ring twisting machine using a twisted wire balloon control ring A obtained by the present invention, a twisted wire balloon control ring B obtained by a conventional technique, and a conventional round wire balloon control ring C. The spinning test result of the twisted polyester yarn for use will be described.

<Spinning conditions> Fiber: Polyester 1,500d / 2 Number of twists: 340T / M (S twist) Ring: STCN 165mmφ (manufactured by Kanai important industries) Trovera: Nylon traveler A310C (manufactured by Kanai important industries) Balloon control ring The present invention Product A: Twisted wire diameter 8 mmφ (2-step type) Twist angle 28 ° (S twist) Inner diameter 165 mmφ (top) 175 mmφ (bottom) Conventional product B: Twisted wire diameter 8 mmφ (two-step type) Twist angle 28 ° (S twist) ) Inner diameter 165 mmφ (upper) 175 mmφ (lower) Conventional product C: Single wire diameter 8 mmφ (round wire) (two-stage type) Inner diameter 165 mmφ (upper) 175 mmφ (lower) As a result of spinning under the above spinning conditions, Fig. 5 As shown in Figure 4, when the spindle speed of the conventional product C exceeds 5,900 rpm, and when the spindle speed of the conventional product B exceeds 6,700 rpm, four or more yarn fluffs are generated per 8,000 m length. , It could not be used as a bad code. Also,
In the conventional product B and the conventional product C, the spindle rotational speeds were only 6,230 rpm and 7,330 rpm, respectively, and the productivity was poor.

On the other hand, in the product A of the present invention, the spindle rotation speed is 7, 3
The generation of yarn fluff is less than 4 per 20 m / pm and the spindle speed is 8,000.
It can be increased up to 0 rpm and is excellent in productivity.

〔The invention's effect〕

In the present invention, a long stranded wire is continuously formed, and the stranded wire is cut into a required length and both ends are welded. Therefore, a wire diameter of 3 mmφ to 5 mmφ is around the core wire. 1.2 mmφ ~
When a 1.5 mmφ side wire is twisted so that the twist angle is 20 ° to 35 °, no gap is created between the strands, and a stable twisted wire with a twist structure in which the twist angle does not change can be obtained. Therefore, a ring with excellent roundness can be obtained even in the winding process. Furthermore, when the mounting member is attached by welding and then polished, there is no scratch on the inner peripheral surface,
Very good quality can be obtained.

Therefore, in the field of twisting of tire cords, there is little generation of yarn fluff even when spun at a high speed range, and there is no generation of molten yarn, which has an excellent effect that productivity can be significantly improved. is there.

Further, in the balloon control ring in which a plurality of side wires are arranged around one core wire, the twisted structure is stable, and further, abrasion resistance is greatly improved when the tuftride treatment is applied to the surface. I have.

[Brief description of drawings]

FIG. 1 is a block diagram showing a manufacturing process of a balloon control ring for a spinning machine of the present invention, FIG. 2 is an explanatory view showing an embodiment of a twisting machine used in a twisting process of the present invention, and FIG. 3 is a twisted wire. FIG. 4 (a) and FIG. 4 (b) are plan views showing an embodiment of the balloon control ring manufactured by the manufacturing method of the present invention, respectively. FIG. 5 is a curve diagram showing the relationship between the spindle rotational speed and the occurrence of yarn fluff in the balloon control ring of the present invention and the conventional balloon control ring. (1) …… Core wire (2) …… Supply reel (3) …… Side wire (4) …… Rotating body (5) …… Stranded wire (6) …… Capstan roller (7) …… Winding reel (8a), (8b), (9a), (9b) …… End (10) …… Mounting member (11) …… Balloon control ring

Claims (4)

[Claims] 1. A plurality of side wires having a wire diameter of 1.2 mmφ to 1.5 mmφ and a twist angle of 20 ° to 35 ° around a core wire made of one single wire having a wire diameter of 3 mmφ to 5 mmφ. A twisting step of manufacturing a twisted wire by twisting so that the twisted wire manufactured in the above twisting step is cut into a fixed length, and a short twisted wire cut into the above fixed length. A step of forming a ring body by sequentially arranging an end welding step of stopping both ends of the wire and a winding step of winding a short stranded wire having the welded both ends to a required diameter to form a ring. And a welding step of joining the mounting member to the machine base to one or several places on the inner peripheral surface or the outer peripheral surface of the ring obtained by the ring forming step, and these steps are sequentially passed. A method for manufacturing a balloon control ring for a spinning machine, comprising: 2. The welding step of, after the winding step, arranging both ends of the ring obtained in the winding step and joining them at one or several places of the overlapping portion. For manufacturing a balloon control ring for a spinning machine. 3. The method for producing a balloon control ring for a spinning machine according to claim 1, wherein a surface hardening treatment step such as a tufftride treatment or a nitriding treatment is provided after the winding step or the welding step. 4. An intermediate step or a final finishing step,
2. A polishing step for polishing at least a surface of a circular ring, which is in contact with at least threads, in at least a final finishing step.
Or the method for producing a balloon control ring for a spinning machine according to item 3.