JP3525044B2 - Charge of welding wire - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to loading a welding wire such as a twisted solid wire or a flux-cored wire into a pail container. About things. A pail container is generally used as a welding wire storage container having a large capacity of 200 to 350 kg.
The stored welding wire is twisted within the elastic limit, for example, 360 ° torsion per wire loop and accommodated in a pail container. This welding wire is
Since there is an internal force to untwist the wire in the pail container, and when the wire is freed, it tends to bounce in the axial direction of the pail container. For this reason, conventionally, as disclosed in Japanese Patent Publication No. Sho 59-8474, a method has been proposed in which an annular pressing plate is placed on a wire loop in a pail container and the wire is pressed from above. . FIG. 4 is a cross-sectional view showing a state in which a welding wire loaded and stored in a pail container described in Japanese Patent Publication No. Sho 59-8474 is twisted. They are stacked and stored in a loop.
This welding wire 5 forms a cylindrical cavity 4 formed by the loop body 2. An annular holding plate 8 is mounted on the upper part of the loop body 2 to prevent the welding wire from jumping up. [0004] As shown in FIG. 4, the take-out position of the welding wire 5 moves from the upper end of the loop body 2 along the inner circumferential end 9 of the annular holding plate 8, and the welding wire 5 moves upward. Taken out. FIG. 5 is a plan view of a part of the pail container of FIG. 4, and 13 is an end of the loop body. Since the take-out position of the welding wire 5 is rotating along the inner circumferential end 9 of the annular holding plate 8, the welding wire 5 is always in almost parallel contact with the next loop 10, The holding plate 8 moves while being shifted toward the inner circumferential end 9 of the holding plate 8 and is taken out. Therefore, when the welding wire 5 is taken out at a high speed, when the rigidity of the wire is large, or when the annular holding plate 8 is light, the annular holding plate 8 is momentarily slightly lifted, and the next loop 10 or Further, the wire of the lower loop 11 may be pulled out into the columnar cavity 4 and jumped in the columnar cavity 4 in an attempt to release the torsion, resulting in entanglement or tangling. [0005] The present invention does not entangle or entangle the welding wire even when the welding wire is taken out of the pail container at a high speed or when the wire has high rigidity. An object of the present invention is to provide a load of a welding wire that enables a welding wire to be smoothly fed to a welding portion without causing a bending habit. [0006] The loaded wire for welding of the present invention is formed by twisting the wire for welding so as to form a columnar cavity in the center of a pail container and stacking it in a loop. In the stored welding wire charge, a flat disk-shaped holding plate having a take-out hole at the center is arranged above the loop of the welding wire, and the weight W (g) of the holding plate and the weight of the welding wire are set. Breaking load T (kgf) ratio W / T is 4 to 3
2, and the diameter H (mm) of the takeout hole of the holding plate is 18
0 mm or less and 0.55 T + 10 (mm) or more in relation to the breaking load T of the welding wire. FIG. 1 shows a charge of a welding wire according to the present invention. FIG. 1 is a cross-sectional view showing a state in which a wire stored in a pail container is taken out. In the pail container 1, twisted wires are stacked and stored in a loop shape. A flat disk-shaped holding plate 3 is placed on the upper end of the loop body 2 to prevent the wire from jumping up. In the flat disk-shaped holding plate 3 of the present invention, a wire extraction hole 6 is provided at the center of the holding plate. The string member 12 is for preventing the welding wire 5 from jumping out of the gap between the wall in the pail container 1 and the flat disk-shaped pressing plate 3. The same effect can be obtained by providing an elastic member in contact with the inner wall of the pail container 1 on the flat disk-shaped pressing plate 3 instead of the string member. FIG. 2 is a plan view of a part of FIG.
FIG. 2 is a partially enlarged view of FIG. Since the wire take-out hole 6 is provided at the center of the flat disk-shaped holding plate 3, the loop immediately before being taken out expands until it comes into contact with the inner wall of the pail container due to the characteristics of the torsion welding wire. The wire is pulled out from the state in which the wire comes into contact with the inner wall of the pail container toward the wire take-out hole 6, and the next loop 1
0 and the lower layer 11 are always crossed.
Therefore, the loop just before being pulled out is not in parallel with the next loop 10 and the lower loop 11, and a plurality of loops are not drawn out to the columnar cavity 4. Further, as shown in FIG. 3, the welding wire 5 to be taken out is provided directly above the wire taking-out hole 6 because a taking-out device or a taking-out guide member (not shown) is provided above the welding wire 5. It is. Therefore, a force acts in the direction of arrow B on the welding wire 5 with the corner 7 of the wire take-out hole in the center of the flat disk-shaped holding plate 3 as the fulcrum due to the pulling tension, and the welding wire 5 contacts the inner wall of the pail container. And the corner 7 of the wire take-out hole is arcuate in the cylindrical cavity 4 toward the bottom of the pail container 1.
This arcuate welding wire 5 is taken out while pressing the next loop 10 and the lower loop 11 by applying a force in the direction C, so that it is taken out at a high speed or the flat disk-shaped holding plate 3 is slightly Even when lifted, the lower layer loop is not drawn out to the columnar cavity 4. Therefore, the welding wire 5 taken out below the flat disk-shaped holding plate 3 is not entangled or entangled. The ratio W / T between the weight W (g) of the flat disk-shaped holding plate 3 and the breaking load T (kgf) of the welding wire 5 needs to be 4 to 32. Weight W (g) of flat disk-shaped holding plate 3 and breaking load T (kgf) of welding wire 5
When the ratio W / T to the plate is less than 4, the rigidity increases with the breaking load of the welding wire 5 with respect to the weight of the flat disk-shaped pressing plate 3. The force in the direction of arrow A shown in FIG.
Is lifted up, the welding wire 5 in the upper layer of the loop body 2 jumps up, and entanglement and entanglement may occur. Conversely, if W / T exceeds 32, the breaking load (rigidity) of the wire is low or the flat disk-shaped holding plate 3 is too heavy, so that the loop just before being taken out cannot spread to the inner wall of the pail container, and the lower layer While moving in the direction of the take-out hole while contacting in parallel with the loop, the take-out is performed, so that the lower-layer loop may be pulled out into the columnar cavity 4 and entanglement may occur. Further, a bending habit is given to the welding wire 5 at the corner 7 of the wire outlet hole, and the bead may meander at the time of welding. Further, a hole for taking out a flat disk-shaped holding plate.
Diameter H (mm) is the breaking load T of the welding wire (kgf)
Therefore, it is necessary to be 0.55T + 10 (mm) or more. The diameter H of the removal hole of the flat disk-shaped holding plate 3 is 0.55 T + 10 (m) in relation to the welding wire breaking load T.
When the diameter is less than m), the diameter H of the takeout hole of the flat disk-shaped holding plate 3 is small with respect to the breaking load (rigidity) of the wire, so that the welding wire 5 is bent at the corner 7 of the wire takeout hole. Therefore, the bead may meander during welding. On the other hand, when the diameter H of the take-out hole of the holding plate exceeds 180 mm, the force of the taken-out welding wire 5 about the corner 7 of the wire take-out hole becomes small, and the next loop 1
0 and the lower loop 11 cannot be held down.
Further, the loop just before being taken out may come into contact with the lower layer loop 11 in parallel, and the lower layer loop 11 may be pulled out into the columnar cavity 4 to cause entanglement or entanglement. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a pail container having an inner diameter of 500 mm and 650 mm, diameters 1.2 mm and 1.6 having different breaking loads are respectively contained.
mm solid wire and flux cored wire,
The layers were stacked in a loop while twisting 360 ° per revolution, and mounted on the loop body while changing the weight of the flat disk-shaped holding plate and the diameter of the wire outlet hole variously. These are shown in Table 1. The breaking load of the welding wire is shown as an average value of five measurements. [Table 1] In Table 1, Test No. 1-4 are examples of the present invention,
Test No. 5 to 8 are comparative examples. For each of the test examples, the entanglement when the welding wire was taken out, the number of entanglements, and the state of the wire after taking out were examined. In the test method, the welding wire was continuously taken out from the pail container at a speed of 15 m / min for 4 hours. The results are also shown in Table 1. As is clear from Table 1, No. 1 of the present invention was used. Each of Nos. 1 to 4 has a wire take-out hole arranged at the center of a flat disc-shaped holding plate, the ratio W / T of the weight W of the holding plate to the breaking load T of the welding wire, and the diameter of the taking-out hole of the holding plate. H is 0.55T + 1 in relation to the welding wire
Since it is appropriate to be not less than 0 (mm) and not more than 180 mm, the loop immediately before being taken out expands until it comes into contact with the inner wall of the pail container, and then crosses the next loop and the lower layer toward the wire takeout hole. In addition, the welding wire to be taken out has an arcuate shape with the corner of the wire taking-out hole as a fulcrum toward the bottom of the pail container having a cylindrical cavity, and the welding wire being taken out is taken out while holding down the next loop and the lower loop. The lower loop as well as the next loop is not drawn into the cylindrical cavity. Therefore, no entanglement or entanglement was generated, and the welding wire was not bent at the corner of the wire outlet hole, which was a very satisfactory result. Test No. in the comparative examples. No. 5 has a high rigidity of the welding wire with respect to the weight of the holding plate, and the weight W of the holding plate.
Since the ratio W / T of the welding wire and the breaking load T of the welding wire is small, the holding plate was lifted when the wire was taken out, and the welding wire in the upper layer portion of the loop body jumped up, and entanglement occurred twice. Test No. In No. 6, since the rigidity of the welding wire is low with respect to the weight of the holding plate and the ratio W / T of the weight W of the holding plate and the breaking load T of the welding wire is large, the loop immediately before being taken out is a pail. can not extend to the inner wall of the container, since retrieved by moving the hole extraction direction while contacting in parallel with the lower loop, viewed from one of the underlying loop pull into a cylindrical cavity, tangled was Ji live. Also,
A bending habit also occurred in the welding wire at the corner of the wire outlet hole. Test No. No. 7 shows that the takeout hole diameter H of the holding plate is 0.55T + 1 in relation to the welding wire breaking load T.
0 (mm), and the take-out hole diameter H of the flat disk-shaped holding plate was smaller than the breaking load (rigidity) of the wire. Therefore, a bending habit was given to the welding wire at the corner of the wire take-out hole. Test No. 8 is the take-out hole of the holding plate
Since the diameter H is large, the welding wire to be taken out has a small force with the corner of the wire take-out hole as a fulcrum, and cannot hold down the next loop and the lower loop. The lower loop was pulled out into the cylindrical cavity in parallel contact with the loop, and entangled twice. As described above in detail, according to the loading of the welding wire of the present invention, when the welding wire is taken out from the pail container at a high speed, when the rigidity of the wire is large, or the like. Also, the welding wire is not entangled or entangled, and the welding wire can be smoothly fed to the welding portion without bending.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a state in which a welding wire stored in a pail container according to the present invention is taken out. FIG. 2 is a plan view of a part of FIG. 1 FIG. Enlarged view [FIG. 4] A cross-sectional view showing a state in which a welding wire stored in a conventional pail container is taken out. [FIG. 5] A partial plan view of FIG. 4 [Description of reference numerals] 1 Pail container 2 Loop body 3 Flat disk Presser plate 4 cylindrical cavity 5 welding wire 6 wire takeout hole 7 wire takeout hole corner 8 annular presser plate 9 inner circumferential end of annular presser plate 10 next loop 11 lower layer loop 12 string member 13 Loop body end

Claims (1)

(57) [Claim 1] In a loading of a welding wire loaded by twisting the welding wire and storing it in a loop as if a cylindrical cavity is formed in the center of the pail container. A flat disk-shaped holding plate provided with an extraction hole at the center above the loop of the welding wire is arranged, and the ratio W between the weight W (g) of the holding plate and the breaking load T (kgf) of the welding wire is set. / T is 4 ~
32, and the diameter H (mm) of the removal hole of the holding plate is 1
A charge of welding wire, which is not more than 80 mm and not less than 0.55 T + 10 (mm) in relation to the breaking load T of the welding wire.