JPH11335000A - Coiled wire and its feeding adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wire in the unwinding end from springing by bending a winding start, edge in the radial direction of a coil loop and by forming it into a hook shape bent in the direction parallel to the coil center line in a coiled wire wound in a multilayer into a hollow cylinder shape with its winding start edge set to the innermost layer and the cylinder edge. SOLUTION: A coiled wire 1 allows a connecting wire 2 to circulate in the central part in the width direction in its outer circumferential face. A lot of stranded wires 3a-3d are stranded in four points at approximately 90 deg. intervals in the cylindrical coil part. The winding start edge 1s which is positioned in the circumferential edge in the innermost layer in the coiled wire 1 to be the loop end is bent in the radial direction of the loop so as to be a radial side 1sr, secondly bent its edge-side half inward the coil in parallel to the coil shaft so as to be a shaft parallel side 1sa, and thereby the whole body is formed into a hook shape. When the coiled wire 1 is installed in a feeding adapter, and if the winding start edge 1s is engaged with the feeding adapter, then the wire can be prevented from springing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil wound wire and a feed adapter for mounting the wire,
Although not intended to be limiting, it relates to a coiled welding wire and a feed adapter used to feed it to a welding torch.

[0002]

2. Description of the Related Art In order to efficiently transport, store, or compactly mount a welding wire, which is a long wire, on a welding machine, the welding wire is usually wound by a coil. A bobbin is used when winding a welding wire around a coil. Conventionally, this reel was shipped as it is as a coil-wound welding wire (product). For example, according to the method disclosed in Japanese Patent Application Laid-Open No. 58-10346, a wire is stored using a reel constituted by a relatively thick metal wire. That is, a plurality of reel elements configured to form a part of a reel by bending a single metal wire are arranged so as to form a circular shape as a whole, and spot welded to each other. To form a reel. Further, according to the method disclosed in Japanese Patent Application Laid-Open No. 62-19646, one metal wire is bent at several places in order to cope with the strain generated in the reel element due to the impact applied during the handling of the reel. At least 2
A flange portion is formed by a framework consisting of two arcuate rim portions and at least two radial rim portions, and a plurality of these are arranged in a circular shape and joined to each other to form a reel. Some reels use plastic or the like.
After coiling a welding wire around these reels and locking the winding start end to the winding drum and the winding end to the flange portion, the whole is wrapped in a moisture-proof material such as a heat shrink film, and the film is heat shrunk. Then, it is stored in a cardboard box and shipped.

According to the method disclosed in Japanese Patent Application Laid-Open No. 5-84573, a wire wound in a coil shape without using a winding frame such as a reel is restrained by a detachable holder. As the restraining holder, a needle bent in a U-shape or a clip-shaped metal wire jig having a spring action is exemplified.
JP-A-6-278714 discloses a method in which a wire wound in a coil shape without using a reel such as a reel is wrapped in a bag shape with an aluminum composite film, and after deaeration, sealing is performed. I have. That is, the wire wound in a coil shape is bundled with a wire without using a bobbin, and the shape is adjusted. At the beginning of the wire, a flag (tag) is used to clarify the used end and to prevent sinking into the coil body. After attaching the same flag (tag) to the end of the wire as the used end, wrap it in a bag with an aluminum composite film and seal it.

[0004]

However, for example, Japanese Patent Application Laid-Open No. 58-10346 or Japanese Patent Application Laid-Open
When a welding wire is coiled using a reel or the like disclosed in Japanese Patent Application Laid-Open No. 2-19646, the reel or the like is disposable when the welding wire is used. Therefore, the production cost is high, and it is necessary to treat it as industrial waste, which is wasteful. Further, a method of restraining a welding wire wound in a coil shape without using a winding frame such as a reel with a detachable holding tool as disclosed in Japanese Patent Application Laid-Open No. Hei 5-84573 is disclosed in Japanese Patent Application Laid-Open No. 5-84573. The layered shape is easily broken. Therefore, in order to maintain the layered shape of the coiled welding wire, for example, when wrapping around a wide steel band and tightening it, the material cost becomes high, and using a low-cost plastic band to bind it In this case, by tightening the band, the corner of the cross-sectional shape of the coiled welding wire is rounded more than a square, and the layered shape is easily broken.

Japanese Patent Laid-Open Publication No. Hei 5-84573 discloses a method of packaging a film-shaped material while holding the coil shape, because the film-shaped material alone has a small shape-retaining ability, and therefore a plurality of wires must be previously formed with wires. It is necessary to unite and shape. It is common to twist the ends of the binding wire together by twisting them in a rope shape, but it is easy to break the film-like material wrapped at the end of the wire, and when using a welding wire, It takes time and effort to remove the binding wire using pliers or the like.

[0006] The user removes the packaging of the coiled welding wire described above, attaches it to the feed adapter, and
(A), the feed adapter 12 is attached to the feeder 13 of the welding machine, the welding wire is pulled out from the feed adapter 12, and the feed roller 15, the conduit liner 16 and the The welding is started by passing through the welding torch 17, and as the welding proceeds, the coil-wound wire is consumed, and when the remaining wire of the feed adapter 12 is near the lowermost layer, FIG. As shown in ()), the remaining wire of the feeding adapter 12 jumps off. As a result, the wire may be entangled with the feed adapter support shaft, and when entangled, a problem such as a stop of the wire feed occurs.

[0007] A first object of the present invention is to prevent the wire from bouncing at the end of rewinding of the wire. A second object of the present invention is to maintain a coiled layered shape even in a coiled wire before use without using a winding frame such as a reel, and to remove the binding wire when using the coiled wire. The third object is to reduce the length of the binding wire, and the fourth object is to eliminate the tip of the binding wire from protruding. A fifth object is to provide a feed adapter that prevents the above-mentioned wire from bouncing, and a sixth object is to provide a feed adapter in which a coil-wound wire can be easily attached to a wire-using device. A seventh object of the present invention is to provide a feeding adapter that allows easy removal of the binding wire after mounting the wire.

[0008]

Means for Solving the Problems (1) The coil-wound wire of the present invention, in which a winding start start end is the innermost layer and a cylindrical end, is formed into a hollow cylindrical multilayer winding, the winding start start end (1s) is:
It is characterized by a hook shape (1sr, 1sa) bent in the radial direction of the coil loop and in a direction parallel to the coil center line. In addition, in order to facilitate understanding, the reference numerals of the corresponding elements in the embodiments shown in the drawings and described later are added for reference in parentheses.

According to this, when the coil winding wire is mounted on the feed adapter (5), the winding start end (1s) is engaged with the feed adapter (5), so that the winding start end (1) is engaged.
Since s) rotates with the feed adapter and does not slip with respect to the feed adapter, the wire does not bounce.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (2) A coil-wound wire according to an embodiment of the present invention has a thick-walled cylindrical shape in which both end surfaces are substantially in the shape of a flat plate and the outer peripheral surface between both end surfaces is substantially a cylindrical surface. A coil wound wire (1) that is a coil body, a binding wire (3a to 3d) is passed through the central space, and this is bent in a U-shape along the inner peripheral surface and both end surfaces of the coil body, and the both legs are bent. Is bent along the outer peripheral surface to surround the coil body in a square shape, and the connecting wire (2) is formed along the outer peripheral surface in a circumferential direction so that both legs, which are substantially parallel to the outer peripheral surface, are pressed against the outer peripheral surface of the coil body. ), Thereby tightening both legs of the binding wire (3a to 3d) against the outer peripheral surface and tying both ends of the connecting wire together, and tips (3as to 3ds, 3a to 3ds, of both legs of the binding wire (3a to 3d)).
3ae to 3de) are folded and tied around the connecting wire.

According to this, in the connecting portion of the binding wires (3a to 3d), the ends of the binding wires are turned back (reversed by 180 degrees), so that the tip protrusion is small. When using the bundled coiled wire (1), after attaching it to the feed adapter (5), unfasten the connection wire (2) connected in a loop, and start (2s) or Pull out the end (2e) (pull in the coil tangential direction). Then, the connecting wire (2) comes out of the connecting portion of the binding wires (3a to 3d) and comes off the coiled wire (1). As a result of the connection wire (2) coming off, the connection part of the binding wires (3a to 3d) can be released at once,
It is not necessary to release the connecting portions of the binding wires (3a to 3d) individually. When the binding wires (3a to 3d) are removed, the unbinding operation of the coiled wire (1) is completed. (3) The coil wound wire according to another embodiment of the present invention is a coil having a thick cylindrical shape having both ends substantially in the shape of a flat ring and an outer peripheral surface between both ends substantially a cylindrical surface. A wound wire (1), a plurality of binding wires (3a to 3d) are passed through the central space, and these are bent in a U-shape along the inner peripheral surface and both end surfaces of the coil body, and the final wire (1) Except for the winding loop (1e), bend both legs of the binding wire along the outer peripheral surface, surround the coil body in a square shape, and press both legs that are almost parallel to the outer peripheral surface against the outer peripheral surface of the coil body As described above, both legs of the binding wires (3a to 3d) are fastened to the outer peripheral surface by the final winding loop (1e), and the binding wires (3a to 3d) are tightened.
The ends of both legs of d) are folded back around the final winding loop (1e), and the ends of the final winding loop (1e) are locked by one binding wire and bound. .

According to this, in the connecting portion of the binding wires (3a to 3d), each wire terminal is turned back (reversed by 180 degrees), so that the tip end projection is small. When using the bundled coil wound wire (1), after attaching it to the feeding adapter (5), the inverted portion of the coil wound wire (1) is separated from the radial direction (pulled up). Then, the connecting portions of the connecting wires (2) and the plurality of binding wires (3d to 3a) come off one after another to release the fastening, so that it is not necessary to release the connecting portions of the binding wires (3a to 3d) individually. A binding wire that was finally unfastened and became unnecessary
If (3a to 3d) is removed, the uncoupling operation of the coiled wire (1) is completed. (4) The tips of both legs of the binding wires (3a to 3d) are folded back so that the tips are linked. According to this, the tip of the binding wire does not break the package. (5) The cylindrical body (5) to which the coiled wire (1) is attached
b) and a fixed flange (5ff) integral therewith at one end thereof and having radially open notches (5d1-5d4) for receiving the binding wires (3a-3d) of the coiled wire (1), The engagement members (6A, 6B) at the other end of the cylindrical body (5b) and the notch (5) for receiving the hook-shaped winding start start end (1s = 1sr + 1sa).
br1 to 5br4, 5ar1 to 5ar4); a flanged body having; and a locking member coupled to the engaging members (6A, 6B).
(8A, 8B) and a detachable flange having cutouts (5c1 to 5c4) which are opened in the radial direction for receiving the binding wires (3a to 3d) of the coiled wire (1) according to the above (2) or (3); A feed adapter comprising:

According to this, when the coil-wound wire (1) is mounted on a flanged body so as to receive the cylindrical body (5b), the hook-shaped winding start end (1s = 1sr) of the wire (1) is provided.
+ 1sa) fits into the notches (5br1-5br4, 5ar1-5ar4). As a result, the radial side (1sr) of the winding start end (1s = 1sr + 1sa) that is bent in the radial direction of the coil loop is moved in the axial direction of the coil start end (1s) and the coil withdrawal with respect to the feed adapter. Axis parallel side (1sa) bent in a direction parallel to the coil center line constrains upward bouncing,
Since the start end (1s) of the winding turns with the feed adapter and does not slip with respect to the feed adapter, the wire does not bounce.

Further, the body (5b) is passed through the center space of the coil of the coil wound wire (1) to bind the binding wire (3a) of the coil wound wire (1).
To 3d) are received in the notches (5d1 to 5d4) provided in the fixed flange (5ff), and the detachable flange (5fr) is locked to the body (5b), so that the binding wire (3a ) Is the detachable flange
(5fr) is also accepted in the notch (5c1-5c4),
b), fixed flange (5ff) and detachable flange (5fr) are integrated. That is, a reel-shaped wire feeding adapter to which the coiled wire (1) is attached is provided.

[0015] The coil wound wire (1) is fixed flange (5ff)
The notch (5d1 to 5d4) provided on the front side and the notch (5c1 to 5c4) provided on the detachable flange (5fr) can be seen, so that the worker can use, for example, the binding wire with the coil outer peripheral surface or the notch (5d1 to 5d4 / 5c1 to 5c4). (3a)
Untie or cut the binding wire (3a)
(5d1-5d4 / 5c1-5c4) can be pulled out in the axial direction of the trunk. After attaching the coiled wire (1) in the bound state,
Since the binding wire (3a) is removed, the coil shape does not collapse.

After removing the binding wires (3a to 3d) as described above, if the coil wound wire (1) is a welding wire,
The torso (5b) is mounted on the coil support shaft of the wire feeder of the welding machine, sandwiched by a wire draw-out roller of the wire feeder, and the tip of the wire is passed through a welding torch to feed the welding wire. Pay preparation is completed. Since the feed adapter (body 5b + fixed flange 5ff + detachable flange 5fr) is attached to the welding machine, the coil wound wire (1) can be easily attached to the welding machine. After attaching the torso (5b) to the coil support shaft, the binding wire (3a)
May be removed.

The fixed flange (5ff) and the detachable flange (5f)
r) has a notch (5d1-5d4, 5c1-5c4) and there is a binding wire (3a-
Since 3d) is accepted, the feed adapter (body 5b + fixed flange 5ff + detachable flange 5fr) supports the coiled wire exactly and securely. (6) The flanged body further has an axis (5s) passing through the center of the body (5b) and the fixed flange (5ff), and the axis (5s) penetrates the detachable flange (5fr). With a central opening for According to this, by receiving the shaft center (5s) in the center opening, a detachable flange in the radial direction with respect to the trunk (5b) is provided.
The positioning of the (5fr) is automatically determined, and the mounting of the detachable flange (5fr) on the body (5b) is easier. (7) The body with flange is provided on the body (5b) with a groove (5) that opens in the radial direction and extends in the axial direction and continues to the cutouts (5d1-5d4).
e1 to 5e4). The binding wire (3a) is the groove (5e1-5e4) of the trunk (5b)
Therefore, the resistance when pulling out the binding wire (3a) is low, and it is easy to pull out and remove.

Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

[0019]

FIG. 1 shows a coil-wound welding wire according to a first embodiment (separate line system) of the present invention. The coiled welding wire 1 has a cylindrical shape, and its coil cross section is rectangular. The coiled welding wire 1 weighs about 10 kg to 20 kg, and the coil outer diameter (cylinder outer diameter) and the coil inner diameter (cylinder inner diameter) are determined according to the use conditions. The connecting wire 2 makes one round of the coiled welding wire 1 along the center of the width of the outer peripheral surface 1g. In addition, binding wires 3a to 3d are bound at four locations at approximately 90-degree intervals in the cylindrical coil portion of the coiled welding wire 1. After bundling, the winding start end 1s, which is the loop end at the innermost cylindrical end, is first bent in the radial direction of the loop to form a radial side 1sr, and then approximately a half of the leading end side is formed. It is bent substantially in parallel with the coil axis and inwardly of the coil to form an axis parallel side 1sa, and the winding start start end 1s is hook-shaped.

FIG. 2 shows an enlarged view of the knot at the tip of the connecting wire 2 shown in FIG. The start end 2s and the end 2e of the connecting wire 2 are crossed while pulling each other so as to tighten the outer peripheral surface 1g, and are bent so that the start 2s and the end 2e face in opposite directions. Thereby, the connecting wire 2 is fixed to the center of the width of the outer peripheral surface 1g. As the connecting wire 2, a solid wire (mild steel wire) having a diameter of 1.2 mm to 1.4 mm was used. The material is hard to bend (plastically deform), but has high tensile strength and little elongation, and is suitable for the connecting wire 2. Table 1 shows the physical properties of the connecting wire 2 and the binding wires 3a to 3d.

[0021]

[Table 1] FIG. 3A shows an enlarged view of the knot (connection part) at the tip of the binding wire 3a. The binding wire 3a makes one round along the coil cross section (rectangle) of the coil-wound welding wire 1 and its start end 3as and end end 3ae are connected to the connection wire 2. That is, the connecting wire 2 is located on the start end 3as and the end 3ae of the binding wire 3a that has made a round along the coil cross section (rectangle), and is bent in the opposite direction while a tensile force is applied to the start end 3as and the end 3ae of the binding wire 3a. As a result, the connection wire 2 is substantially circumscribed. FIG. 3B shows an example of FIG.
Is shown. As shown in the figure, the start end 3as and the end 3ae
Are bent in a state in which the connecting wire 2 is wound around without crossing each other.

A 1.4 mm diameter wire was used for the binding wires 3a to 3d. The material is easy to bend (plastically deform) but has low tensile strength and large elongation. However, when bundling the coil-wound welding wire 1 having a rectangular coil cross section, using a material which is easily bent (plastically deformed) does not cause the corner of the coil cross section to change to a round shape. Suitable for wires 3a to 3d (see Table 1). Using the material, as shown in FIG.
When the beginning 3as and the end 3ae of a are bent to form a knot, the knot withstands a tensile force of at least 10 kgf. The other ends of the binding wires 3b to 3d are connected to the connection wire 2 in the same manner.

When the coiled welding wire 1 tied as shown in FIG. 1 is mounted on a welding machine (not shown) and used,
A method of removing the connecting wire 2 and the binding wires 3a to 3d will be described. As shown in FIG. 10, the coiled welding wire 1 is attached to the feed adapter 5 for the welding machine. At this time, the hook-shaped winding start start end 1s is inserted into notches (5br1, 5ar1) to (5br1) of the trunk end of the feeding adapter 5 shown in FIGS.
4,5ar4). And detachable flange 5
After the fr is attached to the body end and the coiled welding wire 1 is integrated with the feed adapter 5, the feed adapter 5 is attached to the feeder of the welding machine. First, the connecting wire 2 shown in FIG.
Of the starting end 2s and the ending end 2e (twisting the terminal to release the connection and linearly extending the terminal part which has been cross-linked, or cutting the cross-linked part). And the start 2s or end 2
When e is pulled, the connecting wire 2 slips through the knot with the binding wires 3a to 3d and is removed. As a result, the connection of the binding wires 3a to 3d to the connection wire 2 is disconnected, so that the binding wires 3a to 3d are
Remove.

As described above, even in the coil wound welding wire 1 which does not use a reel or the like as a product, the coil wound layered shape can be maintained by using the connecting wire 2 and the binding wires 3a to 3d. Also, no trouble is required to remove the connecting wire 2 and the binding wires 3a to 3d. Since the terminal portions (knots) of the connecting wire 2 and the binding wires 3a to 3d are bent along the wire main body, the protrusions are small, and the film-like material in which the coiled welding wire 1 is wrapped is not damaged.

Second Embodiment FIG. 4 shows a coil-wound welding wire bound by a second embodiment (a continuous wire system) of the present invention. The coiled welding wire 1 is the same as that shown in the first embodiment, but uses about one round of the coil end as the connecting wire 2. The cylindrical coil portions of the coil-wound welding wire 1 are bound at four locations at approximately 90 degree intervals by binding wires 3a to 3d. The materials used for the binding wires are the same as those used in the first embodiment. After bundling, winding start point 1s at the innermost cylindrical end and loop end
Is first bent in the radial direction of the loop to form a side 1 s in the radial direction.
Then, approximately half of the leading end side is bent substantially in parallel to the coil axis and inward of the coil to form an axis parallel side 1sa, and the winding start end 1s is hook-shaped.

FIG. 5A is an enlarged view showing a knot (connection part) at the tip of the binding wire 3d. The binding wire 3d makes a round along the coil cross section (rectangle) of the coil-wound welding wire 1, and its starting end 3ds and ending 3de are connected to the connecting wire 2d.
Connected to That is, the connecting wire 2 (final loop of the welding wire) is arranged on the start end 3ds and the end 3de of the binding wire 3d that has made a round along the coil cross section (rectangle), and the connecting wire 2 is applied with a tensile force. It is bent in the opposite direction while crossing each other for approximately half a circle. In FIG. 5B,
FIG. 6A shows a plane view of FIG. As shown in the figure, the beginning 3ds
The end 3de and the end 3de are cross-linked with each other, and are bent 180 degrees so that the start 3ds is directed in the opposite direction while the connection wire 2 is circulated, and the end 3de is bent 180 degrees so that the end 3de is also directed in the opposite direction. As a result, the start end 3ds and the end 3de of the binding wire 3d are connected to the connecting wire 2, and the coil portion of the coil wound welding wire 1 is bound by the binding wire 3d. The other ends of the binding wires 3a to 3c are connected to the connection wire 2 in the same manner.

FIG. 6 shows an enlarged view of the knot at the distal end portion (welding wire terminal portion) of the connecting wire 2 shown in FIG. After connecting the binding wires 3b to 3d to the connecting wire 2 using the coil end portion of the coil winding welding wire 1, the binding wire 3a is connected to the coil end 1e of the coil winding welding wire 1 (at this time, the binding wire 3a has already been used). Is (d) of FIG.
State). Four binding wires were arranged at 90 ° intervals in the cylindrical coil portion of the coil-wound welding wire 1, and the connection wires 2 were doubled (two) at the last binding wire 3 a. That is, the wire material of the last two loops of the welding wire is held by the binding wire 3a.

FIG. 7 shows a procedure for binding the binding wires 3d (3b, 3c). In FIG. 7A, the binding wire 3d is passed through the coil portion of the coil-wound welding wire 1,
In (b), the binding wire 3d is bent along the coil portion. In (c), the binding wire 3d is further bent along the coil portion to make one round around the coil portion.
(D) is a state where the connecting wire 2 (the coil end of the coil-wound welding wire 1) is brought into close contact with the bent binding wire 3d of (c). (E) is the starting end 3 of the binding wire 3d
ds and the end 3de are cross-linked to each other, and the start 3ds is bent 180 degrees so that it faces in the opposite direction, and the end 3de is bent 180 degrees so that it also turns in the reverse direction,
(G) is the front view. (F) shows a state in which the excess length portions of the start end 3ds and the end 3de, which are bent in (e), are cut. The binding wire 3a makes one rotation in the state of (d) to reach the state of (e). And while the binding wire 3a makes one rotation, 3b, 3c and 3d are in the state of (e).

When the coiled welding wire 1 bound as shown in FIG. 4 is mounted on a welding machine (not shown) and used,
A method of removing the connecting wire 2 and the binding wires 3a to 3d will be described. The coiled welding wire 1 is mounted on the body of the feed adapter 5 for the welding machine shown in FIG. At this time, the hook-shaped winding start start end 1 s is
Notches shown in FIGS. 8 and 9 (5br1, 5ar1) to (5br4, 5ar4)
Fit into one of The detachable flange 5fr is attached to the body end, and the coiled welding wire 1 is attached to the feeding adapter 5.
Are integrated, and the feed adapter 5 is attached to the feeder of the welding machine.

First, a 180 ° bent end 1e of the bent portion of the end of the connecting wire 2 (coil end 1e of the coiled welding wire 1) shown in FIG. Pull up in the direction away from surface 1g. Due to this pulling force, the binding wires 3a to 3d
Is disconnected from the connecting wire 2 (the coil end of the coil-wound welding wire 1). Thereafter, the ends of the binding wires 3a to 3d are gripped with pliers or the like, and pulled out from the coil-wound welding wire 1.

As described above, even in the coil-wound welding wire 1 which does not use a reel or the like as a product, the binding wire 3a is also used.
3d and the connection wire 2 common to the coil end of the coil-wound welding wire 1 can maintain the coil-wound layered shape, and no trouble is required to remove the binding wires 3a to 3d. Since the terminal portions (knots) of the connecting wire 2 and the binding wires 3a to 3d are only bent along the wire main body, the protrusions are small, and the film-like material in which the coiled welding wire 1 is wrapped is not damaged. Since the coil end of the coil-wound welding wire 1 is used as the connecting wire 2, the waste of material is small, and the terminal treatment of the coil-wound welding wire can be omitted.

Next, a feed adapter 5 used to mount the coiled welding wire 1 of the first and second embodiments to a welding machine will be described.

FIG. 8 shows only the elements of the feed adapter 5 with the detachable flange 5fr removed from the flanged body (5b + 5ff), and the flanged body (5b +
FIG. 9 shows a front view of the body end of 5ff), and FIG. 10 shows an appearance of the feed adapter 5. The coiled welding wire 1 is mounted on a body 5b (FIG. 8) provided with a flange 5ff, and a detachable flange 5fr is sandwiched between the coiled welding wire 1 and the body 5b.
b. Body with flange (5b + 5
FIG. 10 shows an appearance in which the coil-wound welding wire 1 is attached to the flange ff) and the detachable flange 5fr is attached to the flanged body (5b + 5ff).

The detachable flange 5f shown in FIGS. 8 and 10
r are provided with notches 5c1 to 5c4, and the notches 5d1 to 5d4 are also provided at positions of the fixed flange 5ff opposed thereto.
Is provided. The body 5b is integrally attached to the fixed flange 5ff, and the body 5b has grooves 5e1 to 5e4.
Notches 5d1 to 5d4 are provided in the fixed flange 5ff so as to be continuous with the grooves 5e1 to 5e4. When the detachable flange 5fr is attached, the notches 5c1 to 5c4 are provided.
Are also continuous with the grooves 5e1 to 5e4. Therefore, as shown in FIG. 1, a groove space is formed inside the coil-wound welding wire 1, so that the binding wires 3a to 3d can enter this space.

At the trunk end of the trunk 5b (the end opposite to the end where the flange 5ff is located), there is a pipe-shaped shaft center 5s at the center of the trunk 5b and penetrating therethrough. 5
symmetrically with respect to s, the hook 6 is a substantially L-shaped engaging member.
A and 6B are provided. At the center of the detachable flange 5fr, there is a round hole through which the shaft center 5s passes, and the hooks 6A, 6A
B are provided with through holes 7A and 7B (FIG. 2) symmetrically with respect to the round hole, and buckle locks 8A and 7B serving as locking members for hooking hooks 6A and 6B passing through the holes 7A and 7B. 8B are provided symmetrically with respect to the round hole through which the axis 5s passes.

The knob of the buckle lock 8A is
It is rotatably supported by a detachable flange 5fr so as to stand on the plane of fr. Two engaging pieces that are substantially U-shaped and whose outwardly bent legs are engaged with the compression coil spring so as to engage with the compression coil spring are combined into a B-shape, and one of them is a knob. It is supported rotatably. 2
The legs of the engaging pieces penetrate the compression coil spring, and are pressed by the compression coil spring so as to be separated from each other and connected to form a square shape. When the knob is set by the operator so as to be substantially perpendicular to the plane of the detachable flange 5fr, the engaging piece and the compression coil spring connected to it become closer to the round hole through which the shaft center 5s passes. The inner space of the mold is moved to the hole 7A for receiving the hook.
Oppose. In this state, the hook 6A that has penetrated the hole 7A can be received in the inner space of the engagement piece. The structure and dimensions of the buckle lock 8B are the same as those of the buckle lock 8B. When the operator sets the knob of the buckle lock 8B to be substantially perpendicular to the plane of the detachable flange 5fr, the buckle lock 8B has And the compression coil spring connected thereto move in the direction approaching the round hole through which the shaft center 5s passes, and the inner space of the B type faces the hole 7B for receiving the hook. In this state, the hook 6B penetrating through the hole 7B can be received in the inner space of the engagement piece in the square shape.

As shown in FIGS. 8 and 9, notches (5br1, 5ar1) to (5br4, 5ar4) for receiving the winding start end 1s of the coil-wound welding wire 1 are formed at the body end of the body 5b by 90 degrees. They are provided at a pitch. Notch 5br1-5br
Reference numeral 4 denotes a winding start point 1 cut into the end face of the cylindrical body 5b.
s is a groove for receiving the radial side 1sr (FIGS. 1 and 4), and the notches 5ar1 to 5ar4 are cut into the circumferential surface of the end plate 5a closing the body end of the cylindrical body 5b. It is a groove for receiving the axis-parallel side 1sa (FIGS. 1 and 4) of the start end 1s into the body space.

The coil wound welding wire 1 is connected to the feeding adapter 5.
Is mounted, the coiled welding wire 1 is applied to the fixed flange 5ff so as to receive the body 5b into the inner space from the end where the winding start end 1s is not provided. At this time, the winding start start end 1s is notched (5br1, 5ar1) to (5br4, 5
ar4), the coil 1 is turned so as to fit any one of the above, and the winding start end 1s is inserted into the notch. Then, as described above, the knobs of the buckle locks 8A and 8B are attached to the detachable flange 5fr.
The attachment / detachment flange 5fr is applied to the body end of the body 5b so that the hooks 6A and 6B of the body with flange (5b + 5ff) are received in the holes 7A and 7B of the attachment / detachment flange 5fr. The knob of the buckle lock 8A is lowered to the position closest to the plane of the detachable flange 5fr through the head of the hook 6A into the square space of the engagement piece of 8A. At this time, the engaging piece forming the square shape moves in the direction away from the shaft center 5s, and one of the engaging pieces engages with the hook-shaped portion of the hook 6A, and the square shape extends and the compression coil spring is compressed. In addition, the knob of the buckle lock 8B is tilted down to the position closest to the plane of the detachable flange 5fr through the head of the hook 6B into the square space of the engagement piece of the buckle lock 8B. At this time, the engagement piece forming a square shape moves in a direction away from the shaft center 5s,
One of the engagement pieces is engaged with the hook-shaped portion of the hook 6B, the die is extended, and the compression coil spring is compressed. FIG. 10 shows the state of the connection in this manner.

Then, by connecting the shaft center 5s, which is a cylinder at the center of the feed adapter 5, to the feeder 13 (FIG. 11 (a)), the coil is welded in a state of being bound by the binding wires 3a to 3d. The wire 1 is now mounted on the welding machine. Next, the binding wires 3a to 3d are removed as described above. Then, the welding wire is pulled out from the feeding adapter 5 and passed through the feeding roller 15, the conduit liner 16 and the welding torch 17 of the welding machine to start welding. This state is shown in FIG. As the welding progresses, the coil-wound wire is consumed, and even if the remaining wire of the feed adapter 5 is near the lowermost layer, the hook-shaped winding start start end 1s of the welding wire 1 is notched (5br1, 5ar1). ~ (5br4,5ar
4), whereby the movement of the starting end 1s in the circumferential direction and the axial direction is restrained, so that the wire in the lowermost layer comes into close contact with the body 5b by the wire pulling tension, and the wire bounces. Does not occur.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a coil-wound welding wire according to the present invention.

FIG. 2 is an enlarged plan view showing a knot between a connection wire start end 2s and a connection wire end 2e shown in FIG.

FIG. 3A is an enlarged front view showing a knot between a binding wire 3a shown in FIG. 1 and a connecting wire end 2, and FIG.
2 is a plan view of FIG.

FIG. 4 is a perspective view showing a second embodiment of the coil-wound welding wire of the present invention.

5A is an enlarged front view showing a knot between a binding wire 3a shown in FIG. 4 and a connecting wire end 2, and FIG.
2 is a plan view of FIG.

6 is an enlarged plan view showing a knot between a binding wire 3d and a connection wire end 2e shown in FIG.

7A to 7F show the binding wire 3d shown in FIG.
And the order of connecting the connecting wire end 2e to the front and the plane, and (g) shows the knot in an enlarged front view.

FIG. 8 is a perspective view showing a state of a feed adapter to which a coil-wound welding wire is mounted before the coil is mounted.

9 is a front view of the feeding adapter shown in FIG. 8 as viewed from the barrel end of the barrel 5b.

FIG. 10 is a perspective view showing an external appearance of a feed adapter equipped with a coil winding welding wire.

11A is a side view of a feeder of a welding machine when a welding wire is pulled out from a feed adapter and is welded, and FIG. 11B is a side view of a conventional welding wire and a feed adapter. It is a side view which shows the wire bounce when the welding wire remaining amount becomes small at the time of use.

[Explanation of symbols]

 1: coil winding welding wire 1s: coil winding start end 1sr: radial side 1sa: axis parallel side 1e: coil winding end 1g: coil outer peripheral surface 2: connecting wire 2c: connecting wire knot 2e: connecting wire end 2s: connecting wire starting end 3a to 3d: Bundling wire 3ac to 3dc: Bundling wire knot 3ae to 3de: Bundling wire end 3as to 3ds: Bundling wire start end 5: Feed adapter 5b: Body 5c1 to 5c4: Notch 5d1 to 5d4 of flange Notch 5e1-5e4: Trunk groove 5ff: Fixed flange 5fr: Removable flange 5s: Shaft 6A, 6B: Hook 7A, 7B: Hole 8A, 8B: Buckle lock

Claims (7)

[Claims] 1. A winding start start end is an innermost layer and a cylindrical end,
A coil-wound wire wound in a multilayer shape in a hollow cylindrical shape, wherein the winding start start end is a hook type bent in a radial direction of the coil loop and bent in a direction parallel to a coil center line. Wire. 2. The coil-wound wire according to claim 1, wherein the coil-wound wire is a thick-walled cylindrical coil body having both ends substantially in the shape of a flat ring and an outer peripheral surface between both ends substantially cylindrical. Pass the binding wire through the central space and bend it into a U-shape along the inner peripheral surface and both end surfaces of the coil body, bend both bent legs along the outer peripheral surface, surround the coil body in a square shape, and The connecting wire is extended along the outer peripheral surface in the circumferential direction so as to press the legs substantially parallel to the surface against the outer peripheral surface of the coil body, thereby tightening the two legs of the binding wire against the outer peripheral surface. The coiled wire according to claim 1, wherein both ends of the wire are tied together and the ends of both legs of the binding wire are folded back so as to go around the connection wire. 3. The coil-wound wire according to claim 1, wherein the coil-wound wire is a thick-walled cylindrical coil body having both ends substantially in the shape of a flat ring and an outer peripheral surface between both ends substantially cylindrical. A plurality of binding wires are passed through the central space and bent in a U-shape along the inner peripheral surface and both end surfaces of the coil body, and both legs of the binding wires are extended along the outer peripheral surface excluding the final winding loop of the wire. Is bent, and the two legs of the binding wire are wound against the outer peripheral surface by the final winding loop so that the two legs substantially parallel to the outer peripheral surface are pressed against the outer peripheral surface of the coil body. 2. The method according to claim 1, wherein the ends of both legs of the binding wire are folded back around the final winding loop, and the ends of the final winding loop are locked to one binding wire and bound. A coil-wound wire as described. 4. The end of both legs of the binding wire is folded back so that the ends are linked to each other.
A coil-wound wire as described. 5. A cylindrical body on which a coiled wire is mounted, a fixed flange integrated at one end thereof and having a radially open notch for receiving a binding wire of the coiled wire; 4. A flanged body having an engaging member at the other end of the body and a notch for receiving the hook-shaped starting end of the hook, and a locking member coupled to the engaging member and the locking member. 5. And a detachable flange having a notch opened in the radial direction for receiving the binding wire of the coiled wire according to the item (1). 6. The coil according to claim 5, wherein the flanged body further has an axis passing through the center of the body and the fixed flange, and the detachable flange has a center opening through which the axis passes. Feeding adapter for wound wire. 7. The coil-wound wire according to claim 5, wherein the flanged body has a groove in the body that opens radially and extends in the axial direction and is continuous with a cutout for receiving the binding wire of the fixed flange. Feeding adapter.