JP5824366B2 - Welding wire load - Google Patents

Description

  The present invention relates to a welding wire load in which twisted welding wires are loaded and stored in a pail pack in a loop shape.

  A pail pack is generally used as a storage container for a welding wire having a large capacity of 200 to 350 kg. However, the stored welding wire is twisted within the elastic limit, for example, a twist of 360 ° per one loop of the wire is given. Are loaded and stored in a pail pack. The welding wire has a force to return the twist of the wire in the pail pack, and when the wire is released, the wire tends to jump in the axial direction of the pail pack, so that entanglement and entanglement occurs when the wire is taken out. For this reason, as disclosed in, for example, Japanese Patent Publication No. 59-8474 (Patent Document 1), an annular pressing plate is placed on the wire loop in the pail pack to press the wire from above. A method has been proposed.

  FIG. 5 is a view showing a state in which the welding wire loaded and stored in the pail pack described in Patent Document 1 is taken out. A welding wire 4 twisted in the pail pack 1 is loaded and stored in a loop shape. Reference numeral 2 denotes a loop body loaded with a welding wire, and reference numeral 3 denotes a columnar cavity in the loop body 2 loaded with a welding wire. An annular retainer plate 13 is placed on the upper part of the loop body 2 on which the welding wire 4 is loaded, and prevents the welding wire from jumping up and getting tangled or tangled. As a result, the welding wire 4 is taken out from the side of the cylindrical cavity 3 above the loop body 2 while the take-out position rotates along the inner circumferential edge 14 of the annular retainer plate 13.

  However, in the state where the welding wire 4 is used up to the vicinity of the bottom of the pail pack, a space is generated between the annular holding plate 13 and the upper portion of the loop body 2, so that the plurality of loops are drawn out to the cylindrical cavity 3 to cause tangles. May occur. That is, FIG. 6 is a view showing a state in which the welding wire 4 is taken out when the welding wire 4 is taken out to the vicinity of the bottom of the pail pack. 5 is a caulking portion of the bottom plate of the pail pack, and a part of the wall surface is raised about 10 mm, for example, inside the pail pack. When the loop body 2 becomes lower than the bottom caulking portion 5, the outer edge portion of the annular pressing plate 13 comes into contact with the bottom caulking portion 5 and stops, and the upper portion of the loop body 2 cannot be pressed by the annular pressing plate 13. As a result, the next loop 10 and the next loop 11 are pulled by the welding wire 4 to be taken out and pulled out to the cylindrical cavity 3, and the welding wire 4 jumps to return the twist in the cylindrical cavity 3. There is a problem of tangling.

  As a solution to this, Japanese Patent Application Laid-Open No. 2007-927 (Patent Document 2) has a weir shape that matches the shape of the caulking portion at the bottom of the pail pack, that is, a shape with a rim like a tray, Techniques have been proposed for preventing tangles at the bottom of the pail pack when the welding wire is removed. However, when the welding wire is taken out from the bottom of the pail pack, the weir that rises upward from the outer edge of the press plate may come into contact with the caulking portion of the pail pack bottom, and the press plate may become slanted. There was a problem that a space was created between them and a plurality of loops were pulled out to cause entanglement and entanglement.

Japanese Patent Publication No.59-8474 JP 2007-927 A

  The present invention provides a welding wire that can be smoothly fed to a welded portion without any entanglement or entanglement regardless of the amount of wire loaded and stored when the welding wire is taken out from the pail pack at a high speed. An object is to provide a charge of wire.

The gist of the present invention is that an upper portion of the stored welding wire in the load of the welding wire which is twisted and stored in a loop shape by twisting the welding wire so as to form a cylindrical cavity in the central portion of the pail pack. to the lower side of the flat plate annular presser plate provided with holes taken up in the center place, the lower side of the pressing plate outer diameter, 1 mm or more smaller than the inner diameter of the bottom plate caulking portion of the pail-pack and pail-pack body parts are those less than 40mm than the inner diameter of, and the upper surface of the lower flat annular retainer plate further place the top flat annular retainer plate, pressing plate of the upper side outer diameter, the lower The welding wire load is characterized in that it is larger than the outer diameter of the flat annular plate on the side and 10 to 40 mm smaller than the inner diameter of the pail pack body.

  According to the welding wire load of the present invention, even when the wire stacking height is lower than the bottom caulking portion of the pail pack, the flat plate-shaped pressing plate can always press the wire on the loop body. There is no tangling or entanglement until all the welding wires in the pail pack are used up, and it can be smoothly fed to the weld.

It is a figure which shows the taking-out state of the welding wire in the pail pack which mounted the flat annular | circular shaped pressing board used for this invention. It is the figure which showed the taking-out state in the bottom part vicinity of the pail pack which mounted the pressing plate shown in FIG. It is a figure which shows the taking-out state of the welding wire in the pail pack which mounted the lower side and upper side flat annular pressing board of this invention. It is the figure which showed the taking-out state in the bottom part vicinity of the pail pack which mounted the pressing plate shown in FIG. It is a figure which shows the taking-out state of the welding wire loaded and accommodated in the conventional pail pack. It is the figure which showed the taking-out state in the bottom part vicinity of the pail pack of FIG.

FIG. 1 shows a state in which a welding wire is taken out from a pail pack on which a flat plate-like pressing plate used in the present invention is placed. A twisted welding wire 4 is loaded and housed in a loop shape inside the pail pack 1, and a flat plate-shaped pressing plate 6 is placed on the loop body 2. The string member 9 is for preventing the welding wire 4 from jumping out from the gap between the inner wall of the pail pack 1 and the flat plate holding plate 6, and the string member is formed in holes provided in several places of the flat plate holding plate 6. Secure the top of the pail pack through 9. Note that the same effect can be obtained by providing the flat plate annular retainer plate 6 with an elastic member that contacts the inner wall of the pail pack 1 instead of the string member 9.

  The welding wire 4 is taken out directly by a take-out device or a take-out guide member (not shown) provided at the upper part of the wire take-out hole 8. Since the welding wire 4 has a predetermined rigidity, it becomes an arch shape in the direction of the pail pack bottom surface 12 of the cylindrical cavity 3 by using the flat plate annular pressing plate 6 as a fulcrum by the take-out tension, and the welding wire taken out is directed toward the inner wall of the pail pack. A force to push back acts.

  Therefore, a force is applied to the welding wire 4 in the direction of the loop body 2 at the flat annular retainer plate 6, and the next loop to be pulled out and the lower layer loop are pulled out while pressing toward the inner wall of the pail pack. . As a result, even if the plate-shaped annular retainer plate 6 is lifted slightly at a high speed, the loop in which the arcuate welding wire 4 is removed is held down so that the lower loop is pulled out to the cylindrical cavity 3. The removed welding wire 4 is not tangled or tangled.

  FIG. 2 is a view showing a state in which the welding wire 4 is taken out from the lower part of the pail pack. In the lower part of the pail pack, since the outer diameter of the flat plate retainer plate 6 is smaller than that of the bottom caulking part 5, it is lowered without being stopped by the bottom caulking part and is placed on the upper surface of the loop body until there is no wire. Therefore, the next loop and the lower layer loop are not pulled out.

  The outer diameter of the flat plate retainer plate 6 needs to be 1 mm or more smaller than the inner diameter of the constricted portion of the bottom plate caulking portion 5 and within 40 mm smaller than the inner diameter of the pail pack body portion. When the outer diameter of the flat plate retainer plate 6 becomes larger than the value obtained by subtracting 1 mm from the inner diameter of the bottom plate caulking portion 5, the outer edge portion of the flat plate retainer plate 6 contacts the bottom caulking portion 5 in the lower layer of the pail pack. Then, the flat plate-shaped pressing plate 6 is lifted from the upper portion of the loop body 2, and the entire welding wire loaded and stored cannot be pressed, and entanglement and entanglement are likely to occur.

  On the other hand, when the outer diameter of the flat plate annular pressing plate 6 becomes smaller than the inner diameter of the pail pack body portion, that is, the portion other than the bottom plate caulking portion 5 by more than 40 mm, the flat loop annular pressing plate 6 is loaded and stored. The inner wall side of the pail pack 1 cannot be pressed. As a result, when the welding wire 4 on the inner wall side of the pail pack 1 of the loop body 2 is taken out, the next loop and the next loop may jump out from the inner wall side of the pail pack 1 and the wire may be tangled.

Further, in the present invention, as shown in FIG. 3, it is preferable to place a flat plate annular pressing plate 7 on the flat plate circular pressing plate 6 used in the present invention . In this case, the string member 9 passes through the outer edge portion of the lower flat plate annular retainer plate 6 and passes through a plurality of holes provided in the upper flat plate retainer plate 7 so as to be fixed to the upper portion of the pail pack.

  Accordingly, in the lower layer portion of the pail pack, as shown in FIG. 4, the upper edge of the upper annular plate retainer plate 7 is in contact with the bottom caulking portion 5 and remains on the upper portion of the bottom caulking portion 5. On the other hand, the lower flat plate annular retainer plate 6 has the same outer diameter range as that of the above-mentioned one retainer plate. Since it is placed on the upper surface of the body, the next loop and the lower loop are not pulled out.

  The outer diameter of the upper flat plate holding plate 7 needs to be larger than the outer diameter of the lower flat plate holding plate 6 and 10 to 40 mm smaller than the inner diameter of the pail pack body. When the outer diameter of the upper flat plate retainer plate 7 becomes larger than the value obtained by subtracting 10 mm from the inner diameter of the pail pack body portion, the outer edge portion of the pail pack 1 is formed when the upper flat plate retainer plate 7 is inclined from the horizontal. It contacts the inner wall and the upper flat plate retainer plate 7 does not descend smoothly. As a result, since the lower flat plate-shaped holding plate 7 is discontinuously contacted, the weight of the holding plate that holds the loop body 2 becomes unstable, and the welding wire 4 on the loop body becomes easy to jump out. It tends to cause tangling.

  On the other hand, when the outer diameter of the upper circular plate retainer plate 7 becomes smaller than the inner diameter of the pail pack body by more than 40 mm, the inner side of the pail pack 1 of the loop body 2 on which the upper flat plate retainer plate 7 is loaded and stored. I can't hold down. That is, when the wire jumps out from between the outer periphery of the lower flat plate-shaped holding plate 6 and the inner wall of the pail pack, the upper flat plate-shaped holding plate 7 has an outer diameter larger than that of the lower holding plate. Will be stopped. The string member 9 serves to prevent the wire from jumping out. However, since the string member 9 is only at a few places on the circumference, the wire may jump out from between the string members, and the complete effect is difficult to expect. If the outer diameter of the upper flat plate retainer plate 7 is smaller than the above range, the upper part of the pail pack cannot reach the upper portion of the pail pack unless the string member 9 passed through the hole of the upper flat plate retainer plate 7 is made long.

  The shape of the pressing plate is not limited to a flat plate shape, and may be a shape such as a Jinkasa shape in which the central portion of the annular portion is inclined. Further, the size of the center hole of the pressing plate is not particularly limited as long as it is smaller than the inner diameter of the laminated wire loop body.

  In a pail pack having an inner diameter of 500 mm and a constricted portion having an inner diameter of 480 mm, a solid wire for welding with a wire diameter of 1.2 mm was loaded and stored in a loop shape while twisting 360 ° per turn. To this, the outer diameters of the lower and upper flat plate holding plates with an inner diameter of 150 mm and a weight of 900 g are changed in various ways, placed on the loop body, and the number of entanglements when the welding wire is taken out. Examined. In the test method, all the welding wires in the pail pack were continuously taken out from the pail pack at a speed of 15 m / min. The results are summarized in Table 1.

In Table 1, No. 1 to 3 and 5 (4 is a missing number) are examples of the present invention. 6 to 9 are comparative examples. No. which is an example of the present invention. 1-5, the outer diameter of the lower flat plate annular retainer plate is appropriate, and the lower flat annular retainer plate is always placed on the loop body loaded during wire drawing. In addition to the next loop, the lower layer loop was not drawn into the cylindrical cavity, and no entanglement or entanglement occurred.

  In addition, even when the welding wire is taken out from the lower part of the pail pack, the lower flat plate retainer plate descends through the bottom plate caulking part and is always placed on the loop body, so that entanglement and entanglement occur. It never happened. In addition, since the outer diameter of the upper flat plate retainer plate is also appropriate, the upper flat plate retainer plate moves smoothly without touching the inner wall of the pail pack, and is always above the bottom plate swaging portion. Since it was placed on the holding plate, no entanglement or entanglement occurred.

  No. in the comparative examples. 6 is that the lower flat annular retainer plate has a large outer diameter and stops at the bottom plate caulking portion, and the lower flat annular retainer plate holds the entire loop body upper wire at the bottom of the pack. It became impossible and tangle occurred twice.

  No. In No. 7, since the outer diameter of the upper flat plate holding plate is small, the string member could not reach the upper part of the pail pack, so the string member could not be fixed. Furthermore, since the outer diameters of the lower and upper flat plate retaining plates are small, the lower and upper flat plate retaining plates cannot hold the inner side of the pail pack of the loop body and loop from the inner side of the pail pack. Jumped out and tangles occurred three times.

  No. No. 8, because the outer diameter of the upper flat plate retainer plate is large, it contacts the inner wall of the pail pack irregularly, does not descend smoothly, and the weight of the upper and lower flat plate retainer plates on the loop body varies As a result, the loop was pulled out into the cylindrical cavity, and twining occurred twice.

1 Pail pack 2 Loop body 3 Cylindrical cavity 4 Welding wire 5 Clamping part of bottom plate 6 Flat annular retainer plate (lower side when two sheets are stacked)
7 Upper flat annular retainer plate 8 Wire feed hole 9 String member 10 Next loop 11 Next loop 12 Pail pack bottom surface 13 Circular retainer plate (prior art)
14 Inner circumferential edge

Claims (1)

When a welding wire load is stored in a loop shape by twisting the welding wire as if a cylindrical cavity was formed at the center of the pail pack, it was taken out at the top of the stored welding wire. the lower flat annular retainer plate provided with holes arranged, 40 mm the lower side of the pressing plate has an outer diameter, 1 mm or more smaller than the inner diameter of the bottom plate caulking portion of the pail-pack, and than the inner diameter of the pail-pack body portion within are those small, and, on the upper surface of the lower flat annular retainer plate further place the top flat annular retainer plate, pressing plate of the upper outer diameter of the lower side of the flat plate annular retainer larger than the outer diameter of the plate, and charge of welding wire, characterized in that 10~40mm smaller than the inner diameter of the pail-pack body portion.

Images