JPH0584573A - Coiled welding wire - Google Patents

Abstract

PURPOSE:To provide the inexpensive coiled welding wire which is lightweight and easily handled, and raises no problem on industrial waste treatment. CONSTITUTION:In this coiled welding wire W, a fine diameter wire of 0.6-1.6mm is wound in a coil shape without using a bobbin such as a reel and a spool and restrained by a detachable holding tool 4 and the coil weight, the coil inside diameter (a) and the coil width (b) are 1-10kg, 50-180mm phi and 40-100mm, respectively. There are a system where an U-shaped needle is used to bend its tip and carry out restraint, a system where a U-shaped needle Which is slightly narrower than the coil width and has a spring function is fitted into a coil, etc., as the restraining holding tool 4. The welding wire can be applied to both flux-cored wire and solid wire.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coiled welding wire, and more particularly to a welding wire formed by winding a small diameter welding wire into a coil without using a reel or spool.

[0002]

2. Description of the Related Art Conventionally, a welding wire has been stored in an appropriate storage body, stored and transported, and used for welding. As the storage body, a winding body S as shown in FIG. 1 is generally used. This winding body S is obtained by winding a welding wire W on a body portion 1a of the reel 1 using a reel 1 made of plastic, iron, fiber board or the like, a spool, or the like. After the terminal end is locked in the groove, hole or the like of the flange portion 1b of the winding frame 1, the whole is covered with the moisture-proof material 2 and then stored in the corrugated cardboard 3 or the like. The winding end is locked to prevent the variation. FIG. 2 shows an example of the reel 1 and a state in which the welding wire W is wound around the reel 1.

However, in such a winding body, since a winding frame made of plastic or the like is used, it is necessary to dispose of an empty plastic winding frame or the like as a waste after the wire is completely used up after welding. Especially, the amount of 20 kg or less was large, and there was a problem in terms of industrial waste generation and resource recovery.

Further, the unit weight of the reel or spool winding wire is as heavy as 12.5 kg or 15 kg, and there is a problem in handling. Especially due to the aging of welders
Although there is a demand for lightweight wire (less than 10 kg) from the viewpoint of transportation, welding work in high places or narrow places, there is no suitable lightweight coil winding device from the viewpoint of productivity and cost, and it is not possible to deal with it. Is.

The present invention has been made in response to such a demand, and an object thereof is to provide an inexpensive coil winding welding wire which does not have a problem in industrial waste treatment and is easy to handle. is there.

[0006]

In order to solve the above problems, the present inventor first assumes that the welding wire is simply wound in a coil shape without using a reel such as a reel or a spool. We also tried to reduce the weight of the coil to 10 kg or less. However, in this case, the wire diameter is 1.6 mmφ
The following small diameters have a small diameter and are therefore not suitable for welding.
It was found that the coil is likely to come apart and get entangled during (in use), and it is difficult to put the coil into practical use simply by omitting the winding frame.

Therefore, with a thin wire having a diameter of 1.6 mm or less,
In addition, as a result of earnest research on a method of putting a simple coil winding wire which does not use a winding frame into a coil single weight of 10 kg or less, the inner diameter and outer diameter of the coil after winding the wire are regulated and properly held. It was found that this is possible by restraining it with a tool.

That is, according to the present invention, a thin wire having a diameter of 0.6 to 1.6 mm is wound in a coil shape without using a winding frame such as a reel or a spool, and is restrained by a removable holding tool, and , Coil weight is 1-10kg, coil inner diameter is 5
The gist of the invention is a coiled welding wire having a diameter of 0 to 180 mm and a coil width of 40 to 100 mm.

The present invention will be described in more detail below. The reasons for defining each condition in the coil winding welding wire of the present invention are as follows.

[0010]

[Action]

(Wire diameter: 0.6 to 1.6 mmφ) The wire diameter of the thin wire targeted by the present invention is 0.6 to 1.6.
mmφ. Looseness, entanglement, etc. during use (welding) are problems with thin wires, especially those with a diameter of 1.6 mm or less. Therefore, the upper limit of the wire diameter is 1.6 mmφ.
On the other hand, the lower limit of the wire diameter is set to 0.6 mmφ as a value that can be produced on an industrial basis.

(1 coil weight: 1 to 10 kg) If the weight of one coil is less than 1 kg, the weight is too small and the frequency of coil replacement is too high, which is not practical. On the other hand, if the weight exceeds 10 kg, the weight becomes too large, and the manual handling becomes a problem as in the conventional case. Regarding the coil unit weight, in the case of a small-diameter wire, if the weight exceeds 10 kg, wire entanglement and dents frequently occur, leading to wire feedability and, ultimately, defects in the welded portion. Therefore, the unit weight of the coil is 1 kg or more and 10 kg or less.

(Coil inner diameter: 50 to 180 mmφ) In order to obtain good wire feedability and straightness, the coil inner diameter (see a in FIG. 3) must be 50 mmφ or more. However, if the inner diameter of the coil exceeds 180 mmφ, the winding shape of the coil itself becomes large and the size cannot be reduced, which is not preferable. Therefore, the inner diameter of the coil is set to 50 mmφ or more and 180 mmφ or less.

(Coil width: 40 to 100 mm) Coil width
If (see b in FIG. 3) is too small, the coil height becomes large compared to the coil width, and the drawing conditions (height direction) change greatly as the wire is used, and wire entanglement easily occurs. Become. Therefore, the coil width is 40 mm or more. However, if the coil width exceeds 100 mm, the coil shape becomes large and it cannot be downsized. Therefore, the coil width is 40
mm or more and 100 mm or less.

(Holder) In the present invention, in order to solve the problem of waste disposal and the like, the welding wire is coiled without using a reel such as a reel or a spool. However, since the winding frame is not used, the end cannot be fixed as it is, and the coil shape cannot be maintained unless some kind of constraint is applied. Therefore, it was decided to restrain using a suitable holder.

The holder is not particularly limited as long as it can be removed. It is preferable that the outer peripheral surface and the side surface of the coil are restrained at a plurality of positions by a linear or rod-shaped rigid holder. As an example, as shown in FIG. 4, a coil 4 having substantially the same width as the coil width is used to enclose the inside and outside of the coil with a needle 4 longer than the coil height, and the tip is bent to restrain the coil. As shown, there is a method in which the width of the tip is slightly narrower than the height of the coil and restrained by a clip-shaped metal wire jig 5 that acts as a spring. These methods can be automated in manufacturing.

In the present invention, the method of winding the wire may be either regular winding or twill winding. Also, as a welding wire, it can be applied to both solid wire and flux-cored wire (core wire), but it is particularly good in terms of work efficiency and workability (spatter, bead appearance),
It is effective when applied to flux-cored wires that are widely used in narrow spaces.

The coiled welding wire of the present invention is set in an appropriate wire feeder and used. For example, a portable lightweight wire feeding device as shown in FIG. 6 can be used. At that time, remove the holder and set it. When pulling out the welding wire, for example, if the coil is pulled out while rotating, a kink or the like does not occur. Actually, FIG.
As shown in Fig. 4, for example, the wire is placed on the jig consisting of the bottom plate and the inner cylinder (outer diameter c), the upper lid is placed on the upper surface of the wire, and the hole of the upper lid (inner diameter d (d> c)) Pull out the welding wire from the gap.

Next, examples of the present invention will be described.

[0020]

【Example】

[Table 1] Various coiled welding wires shown in Fig. 4 were manufactured and restrained by the restraining holder shown in Fig. 4. Next, the coil winding welding wire was stored in the wire feeding device shown in FIG. 6, the holder was removed, and a wire feeding test was performed. The test result is

[Table 2] As shown in FIG. 5, all of the examples of the present invention had good wire feedability and wire straightness.

[0021]

As described in detail above, according to the present invention,
Since problems such as disposal of reels, spools, and other reels after wire use (welding) do not occur, and the size and weight can be reduced, the labor for welding, transportation, etc. can be reduced. Further, excellent effects such as a good feedability and straightness of the welding wire and a weld portion free from welding defects can be obtained.

[Brief description of drawings]

FIG. 1 is a view showing a winding body, in which (a) is a cross-sectional view and (b) is a cross-sectional view taken along the line I-I of (a).

2A and 2B are views showing an example of a reel, FIG. 2A is a perspective view, and FIG. 2B is an external view in which a welding wire is wound around the reel.

FIG. 3 is an explanatory view showing an example of a coil winding welding wire of the present invention.

FIG. 4 is a view for explaining an example of a restraint system in the coil winding welding wire of the present invention, in which (a) shows a restrained state,
(b) shows how to use the holder.

FIG. 5 is a diagram illustrating another example of the restraint system for the coiled welding wire of the present invention.

FIG. 6 is an overall view of a small and lightweight wire feeding device.

FIG. 7 is an explanatory view showing a jig for mounting a coiled wire in a small and lightweight wire feeding device.

[Explanation of symbols]

 W Coil winding welding wire 1 Reel 2 Moisture proof material 3 Corrugated cardboard 4 Restraint holder 5 Restraint holder

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Kanji Mogi 100-1 Urakawachi, Fujimae, Fujisawa, Kanagawa Kanagawa Fujisawa Works (72) Inventor Yoshio Oya, 100, Urakawachi, Fujisawa, Kanagawa -1 Stock Company Kobe Steel Works, Fujisawa Plant (72) Inventor Toshihiko Nakano 100, Urakawachi, Miyamae Fujisawa City, Kanagawa Prefecture -1 Kobe Steel Works, Fujisawa Plant

Claims (2)

[Claims] 1. A thin wire having a diameter of 0.6 to 1.6 mm is wound in a coil shape without using a winding frame such as a reel or a spool,
A coil winding welding wire, which is constrained by a removable holder, has a coil weight of 1 to 10 kg, a coil inner diameter of 50 to 180 mmφ, and a coil width of 40 to 100 mm. 2. The coiled welding wire according to claim 1, wherein the welding wire is either a flux-cored wire or a solid wire.