JP2001314968A - Welding wire charged article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a welding wire charged article from which welding wire can be taken out smoothly without coiling around an inner cylinder, even if a plurality of loops are drawn out in taking out welding wire stored built-up in a pail receptacle. SOLUTION: The twisted welding wire charged article stored built up in a loop state between an outer cylinder forming the paid receptacle and an inner cylinder fixed on the bottom of the pail receptacle, is characterized in that an inner cylinder is a cardboard liner having thickness of 0.8-1.5 mm and weight of 400 g/m2 or more, and charged with twisted welding wire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding wire charge in which a welding wire for a twisted solid wire or a flux-cored wire is stacked and housed in a loop shape in a pail container.

[0002]

2. Description of the Related Art Generally, a pail container is used as a storage container for a welding wire of 200 to 350 kg. The stored welding wire is twisted within a range of elasticity limit, for example, a twist of 250 to 360 °. It is provided and stored in a flower pattern with a predetermined loop diameter. Therefore, the welding wire has a property of returning the torsion in the pail container, and has a property of bouncing in the axial direction of the pail container when the wire is free. Therefore, entanglement or tangling occurs when the wire is taken out. For this reason, conventionally, for example,
As disclosed in Japanese Patent No. 8474, a method has been proposed in which an annular holding plate is placed on a wire loop in a pail container and the wire is pressed from above.

FIG. 3 is a cross-sectional view showing a state in which welding wires stacked and housed in a pail container are taken out, described in Japanese Patent Publication No. Sho 59-8474, in which the inside of an outer cylinder 1 constituting a pail container 7 is shown. The twisted welding wires 5 are stacked and stored in a loop shape. The welding wire 5 includes an inner cylinder 6 fixed to a bottom portion 8 of a pail container 7 in a cylindrical cavity formed by laminating the laminate 2, and a cylinder between the laminate 2 and the inner cylinder 6. A cavity 4 is formed.

[0004] A pressing plate 3 is placed on the upper part of the laminate 2 to prevent the welding wire from jumping up. Further, the inner tube 6 prevents the welding wire 5 from jumping up in an attempt to release the torsion in the cylindrical cavity 4 when a plurality of loops are pulled out into the cylindrical cavity 4.

However, as shown in FIG. 4, even if a plurality of loops are drawn out to the cylindrical cavity 4, the cylinder 6 does not cause the cylindrical cavity 4 to jump up. The welding wire 5 having a plurality of loops drawn out into the cylindrical cavity 4 when the height is low is sequentially pulled up by a take-out device or a take-out guide member (not shown). Can not move. Therefore, a large resistance is generated in the wire feeding device of the welding machine, and the wire feeding speed may not be constant, and the welding arc may be unstable, or the wire feeding may not be performed, and the welding may be stopped.

[0006]

SUMMARY OF THE INVENTION According to the present invention, when a plurality of loops are pulled out when a welding wire stacked and housed in a pail container is taken out, the welding wire does not wrap around the inner cylinder. An object of the present invention is to provide a charge of a welding wire that can be smoothly removed.

[0007]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a twisted welding wire laminated and housed between an outer cylinder constituting a pail container and an inner cylinder fixed to the bottom of the pail container. The inner cylinder has a thickness of 0.8 to
It is a liner for corrugated cardboard having a thickness of 1.5 mm and a weighing of 400 g / m ² or more, and is characterized by being loaded with a torsion welding wire.

[0008]

FIG. 1 is a sectional view showing a state in which a welding wire is taken out by using a charge of the welding wire of the present invention. Between the outer cylinder 1 constituting the pail container 7 and the inner cylinder 6 fixed to the bottom portion 8 of the pail container 7, a welding wire with a twist is stacked and stored in a loop shape. The welding wire 5 is provided with an inner cylinder 6 fixed to a bottom 8 of a pail container 7 in a cylindrical cavity formed by laminating the laminate 2.
And a cylindrical cavity 4 is formed between the laminate 2 and the inner cylinder 6.

A pressing plate 3 is placed on the upper part of the laminate 2 to prevent the welding wire from jumping up. In addition, the inner tube 6 prevents the welding wire 5 from jumping to release the twist in the cylindrical cavity 4 when a plurality of loops are drawn out into the cylindrical cavity 4.

In the present invention, the inner cylinder 6 has a thickness of 0.8 to 0.8.
1.5 mm corrugated cardboard liner, FIG. 1 and FIG.
2 is deformed so that the outer peripheral length of the inner cylinder 6 becomes smaller toward the tip end as shown in FIG. 2, so that even when a plurality of loops are pulled out, the welding wire 5 is It rises in order along the outer surface of the cylinder 6 and is guided to a wire take-out device or take-out guide member (not shown). Therefore, the plurality of loops that are pulled out are wrapped around the inner cylinder 6 without any resistance, and slide upward without any resistance, so that the loops can be pulled out smoothly.

If the thickness of the corrugated cardboard liner used for the inner cylinder 6 is less than 0.8 mm, the inner cylinder 6 is partially tightened and deformed by the plurality of loops drawn out, and the loop diameter becomes small. It cannot be moved upward due to winding. Therefore, the wire cannot be fed and the welding stops. If the thickness of the cardboard liner used for the inner cylinder 6 exceeds 1.5 mm, the inner cylinder 6 will not be deformed,
When a plurality of loops are pulled out, the loop diameter becomes small, and the loops are wound around the inner cylinder 6 and cannot be smoothly moved upward. Therefore, a large resistance is generated in the wire feeding device of the welding machine, and the wire feeding speed may not be constant, and the welding arc may be unstable, or the wire feeding may not be performed, and the welding may be stopped.

Next, since the weighing of the cardboard liner used for the inner cylinder 6 is set to 400 g / m ² or more, even when a plurality of loops are pulled out and the inner cylinder 6 is deformed, the plurality of loops are connected to the wire take-out device. Alternatively, when it is guided by the take-out guide member and becomes a steady state, it is quickly restored to a cylindrical shape.
Further, no crack is generated even if the plurality of loops are drawn out. Therefore, the plurality of loops that are pulled out are not wound around the inner cylinder 6 and slide up on the surface without resistance, so that the loops can be pulled out smoothly.

If the weight of the cardboard liner used for the inner cylinder 6 is less than 400 g / m ² , the inner cylinder 6 is partially tightened by the plurality of pulled-out loops and deformed excessively, and the loops are wound around You cannot move to.
Further, a crack is formed in the inner cylinder 6 and a loop wound around the inner cylinder 6 is caught by the crack, so that the inner cylinder 6 cannot be moved upward. Therefore, a large resistance is caused in the wire feeding device of the welding machine, and the wire feeding may not be performed, and the welding may be stopped.

The upper limit of the weight of the cardboard liner used for the inner cylinder 6 is preferably 460 g / m ² or less from the viewpoint of easy deformation. The cardboard liner used for the inner cylinder 6 is preferably fixed to a pail container with the vertical direction being vertical, and the tensile strength in the vertical direction is preferably 3 N or more. The weighing of the cardboard liner according to the present invention is J
A value measured according to ISP8124.

[0015]

[Example] Outer cylinder outer diameter 510 mm, height 820 mm (A)
And two types of bail containers having an outer cylinder outer diameter of 650 mm and a height of 770 mm (B), and various types of corrugated cardboard liner inner cylinders having different thicknesses and weighings as shown in Table 1 were fixed to the bottom of the pail container. , A solid wire with a wire diameter of 1.2 mm (JIS
Z3312 YGW11) is twisted 360 ° per loop in a loop, and 100 kg is inserted into the gap between the outer cylinder and the inner cylinder.
The layers were stacked and the presser plate was placed.

For each of the test examples, a welding wire was drawn out into a cylindrical cavity between the laminate and the inner cylinder by five loops, and was welded for 3 minutes by a welding device through a wire take-out guide member under the following welding conditions. The operation of checking the state of taking out the welding wire was repeated 10 times. Table 1 also shows the results. Welding current: 300 A Welding voltage: 30 V Welding speed: 30 cm / min Shielding gas: CO ₂ 20 liter / min Welding method: Bead-on-plate

[0017]

[Table 1]

Test Nos. 1 to 6 in Table 1 are examples of the present invention and tests
Nos. 7 to 12 are comparative examples. Test No.
In the case of 1 to 6, since the thickness and weighing of the cardboard liner used for the inner cylinder are appropriate, the plurality of loops pulled out are wound around the inner cylinder, but are smaller as the outer peripheral length of the inner cylinder becomes the leading end. As a result, the wound loops could slide up the outer surface of the inner cylinder and be pulled out smoothly.
In addition, when the extraction of the plurality of loops was completed and a steady state was reached, the deformed inner cylinder was quickly restored to a cylindrical shape. Further, no crack was generated in the inner cylinder when deformed.

In the comparative examples, tests No. 7 and No. 10
Since the thickness of the corrugated cardboard liner used for the inner cylinder was thin, the inner cylinder was partially tightened by the plurality of loops that were pulled out, was too deformed to move upward, and the wire feeding was stopped. In Tests No. 9 and No. 11, the thickness of the corrugated cardboard liner used for the inner cylinder was large, so the inner cylinder did not deform, the loop diameter became smaller, and it wrapped around the inner cylinder. The feeding became unstable due to the inability to do so. In Tests No. 10 and No. 12, the weighing of the corrugated cardboard liner used for the inner cylinder was low, so the inner cylinder was partially tightened by multiple loops, deformed too much, and the loop was wrapped to stop feeding. . In Test No. 12, cracks occurred in the inner cylinder.

[0020]

As described above in detail, according to the loading of the welding wire of the present invention, even when a plurality of loops are pulled out when the welding wire stacked and stored in the pail container is taken out. The welding wire can be smoothly taken out without winding around the inner cylinder.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a state in which a wire is taken out using a charge of a welding wire according to the present invention.

FIG. 2 is a sectional view showing AA ′ of FIG. 1;

FIG. 3 is a cross-sectional view showing a conventional welding wire charge.

FIG. 4 is a sectional view showing a state in which a conventional welding wire is taken out.

[Explanation of symbols]

 1: outer cylinder 2: laminated body 3: holding plate 4: columnar cavity 5: welding wire 6: inner cylinder 7: pail container 8: bottom

Claims (1)

[Claims] 1. A torsion-welding wire wire loaded and stored in a loop between an outer cylinder constituting a pail container and an inner cylinder fixed to the bottom of the pail container.
The thickness is 0.8-1.5mm and the weight is 400g
/ M ² or more, which is a liner for corrugated cardboard, wherein a wire for torsion welding is loaded.