JP2005169468A - Welding wire storage vessel, and welding wire stored in vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a welding wire storage vessel capable of smoothly recoiling wire for welding to the lowest layer without causing twisting and entangling, and to provide welding wire stored in the vessel. <P>SOLUTION: Inside a vessel where a bottom plate 4 is held by caulking a cylindrical outer case 1, welding wire 10a is wound while the central axis thereof is moved along a circular locus. Next, a press board 2 in which the outside diameter at the lower side is smaller than the inside diameter of the caulked part in the outer case 1, and the outside diameter at the upper side is larger than the inside diameter of the caulked part and also smaller than the inside diameter at the part other than the caulked part in the outer case 1 is placed on a welding wire coil 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a welding wire storage container and a container-containing welding wire for storing a coil of a welding wire, and more particularly to a welding wire storage container and a container-containing welding wire that can be applied to a welding wire having high rigidity such as a solid wire.

  As containers for storing welding wires such as solid wires and flux-cored wires, generally, bottomed cylindrical pail containers are used (see, for example, Patent Documents 1 and 2). FIG. 6A is a perspective view schematically showing a conventional welding wire in a container, and FIG. 6B is a sectional view thereof. Moreover, Fig.7 (a) and (b) are perspective views which show the holding plate of the conventional welding wire storage container. As shown in FIGS. 6 (a) and 6 (b), the conventional welding wire with a container is such that the welding wire 100a has a circular trajectory in a container in which a bottom plate 105 that forms the bottom is held inside the outer cylinder 101. It is wound and accommodated while moving along the central axis. In the conventional welding wire storage container, the inner cylinder 106 having a smaller diameter than the outer cylinder 101 may be provided coaxially with the outer cylinder 101.

  Usually, the welding wire with a container is unwound in a state of being accommodated in the container. For this reason, the welding wire 100a may be entangled or entangled during unwinding. Therefore, in the conventional welding wire with a container, an annular pressing plate 102 as shown in FIG. 7A is placed on the welding wire coil 100, and the welding wire coil 100 is pressed downward by the pressing plate 102. By doing so, the unwound wire is prevented from splashing and entangled with each other. The holding plate 102 in the conventional welding wire storage container has an outer diameter slightly smaller than the inner diameter of the outer cylinder 101, and the inner diameter is slightly larger than the outer diameter of the inner cylinder 106, and the welding wire 100 a has the inner cylinder 106. And the presser plate 102 are unwound from the gap. Also, as shown in FIG. 7 (b), there are also provided with a plurality of sponge plates 112a protruding outside the outer peripheral portion so that the welding wire 100a does not jump out from the gap between the outer cylinder 101 and the holding plate 112. is there. Since the holding plates 102 and 112 are movable in the vertical direction, even if the height of the welding wire coil 100 is changed by unwinding the welding wire 100a, the pressing plates 102 and 112 are always placed on the welding wire coil 100. Has been.

  Conventionally, in order to prevent entanglement during unwinding, a pressing plate in which a plurality of elastic inward pieces are provided on a belt-like vertical wall portion has also been proposed (see Patent Document 3). The pressing plate is rounded into an annular shape, and is placed on the welding wire coil such that the vertical wall portion is in contact with the inner surface of the outer cylinder and the elastic inward piece is in contact with the upper surface of the welding wire. Then, the welding wire is drawn upward while being in contact with the edge of the elastic inward piece of the pressing plate.

  Further, in the conventional welding wire storage container, in order to prevent the welding wire from jumping out from the gap between the holding plate 102 and the outer cylinder 101, the holding plate 102, the welding wire coil 100, and the outer cylinder 101 are used. A plurality of strings 108 extending in the height direction of the outer cylinder 101 are arranged. Further, a ring 103 having a circular longitudinal section is disposed on the holding plate 102, and this ring 103 is disposed coaxially with the outer cylinder 101 between the string 108 and the outer cylinder 101. The ring 103 is held on the pressing plate 102 via the string 108 and moves following the pressing plate 102. Furthermore, in order to smoothly move to the next storage container when unwinding continuously, the winding start end of the welding wire 100a, that is, the unwinding termination end of the welding wire 100a is provided at the upper part of the inner surface of the outer cylinder 101. It is locked by a plurality of clamps 107. Then, by connecting the unwinding end (winding start end) and the unwinding start end of the next container-wound welding wire to be unwound, a plurality of container-containing welding wires can be continuously unwound (see Patent Document 4). ).

  However, in the conventional welding wire storage container, the bottom plate 105 is fixed by caulking the lower end portion of the outer cylinder 101 as shown in FIG. A small caulking portion is formed. This caulking portion is intended to facilitate positioning when the bottom plate 105 is inserted into the outer cylinder 101, and assists by applying a guide during curl processing for fixing the bottom plate 105. When unraveling, the presser plate 102 is held by the caulking part, and the welding wire coil 100 below the caulking part cannot be pressed, and the wire between the caulking part and the bottom plate 105 jumps up, becomes entangled and loosened. There is a problem of injury.

  Thus, a method of raising the bottom of the container by laminating a plate or the like on the bottom plate 105 has been studied. FIG. 8 is a cross-sectional view showing a welding wire storage container with a raised bottom. In this welding wire storage container, a disk 109 having an outer diameter that can be inserted into the caulking portion and having a thickness equivalent to the height of the caulking portion is joined to the bottom plate 105 with an adhesive or the like. As a result, the bottom of the container is raised and the upper surface of the lowermost welding wire is above the caulking portion, so that the lowermost welding wire can be pressed by the pressing plate 102.

  In addition, a holding plate is provided which has a plurality of strip-shaped blade members attached to an annular flat plate whose inner diameter is larger than the outer diameter of the inner cylinder and whose outer diameter is smaller than the minimum inner diameter of the outer cylinder so as to protrude inward and outward. A welding wire storage container has also been studied (see Patent Document 5). FIG. 9 is a plan view showing a pressing plate of the welding wire storage container. The holding plate 120 presses the welding wire coil downward by the annular flat plate 121 and prevents the welding wire on the outer cylinder side and the inner cylinder side from jumping out by the blade member 122. Since this presser plate 120 can enter the caulking portion whose outer diameter is smaller than the inner diameter of the caulking portion, it is possible to press down to the lowermost welding wire.

Japanese Examined Patent Publication No.59-8474 (Page 1-2, Figure 1-4) Japanese Examined Patent Publication No. 3-34424 (Fig. 2-3, Fig. 1) JP-A-10-218493 (Figs. 3-4 and 1-3) Japanese Patent Publication No. 1-15353 (page 2-3, Fig. 3) Japanese Patent Laid-Open No. 2-147666 (page 3-5, FIG. 2)

  However, the conventional techniques described above have the following problems. The conventional welding wire storage container with the raised bottom shown in FIG. 8 can be pressed down to the lowest layer of the welding wire coil 10 by the pressing plate 102, but between the disk 109 and the inner surface of the outer cylinder 101. There is a problem that a gap is formed in the wire, and a wire is caught in the gap to stop feeding. When using a plurality of container welding wires in succession, it is impossible to move to the next container unless all the welding wires stored in the container are pulled out smoothly. If trouble occurs in the vicinity of the bottom where the remaining amount of metal is reduced, it is not possible to continuously use a plurality of container-containing welding wires. Further, it is possible to eliminate the gap between the disk 109 and the inner surface of the outer cylinder 1 by increasing the thickness of the disk 109 and setting the bottom of the container above the caulking portion. An increase in the amount is not preferable because the amount of wires that can be accommodated in the container decreases, the workability during use decreases, and the manufacturing cost increases.

  Further, in the conventional welding wire storage container provided with the holding plate 120 shown in FIG. 9, the portion between the holding plate 120 of the welding wire coil and the outer cylinder is only pressed at several places by the blade material 122. There is a possibility that the welding wire on the outer cylinder side jumps out. In addition, since the blade member 122 protruding inward is in contact with the outer surface of the inner cylinder and the blade member 122 protruding outward is in contact with the inner surface of the outer cylinder, the presser plate 120 easily moves obliquely. There is a problem that entanglement and entanglement of the wire are likely to occur.

  The present invention has been made in view of such problems, and provides a welding wire storage container and a container-containing welding wire that can smoothly unwind the welding wire to the lowest layer without causing entanglement and entanglement. For the purpose.

  A welding wire storage container according to the first invention of the present application is a welding wire storage container for storing a coil of a welding wire, and a bottom plate that is held inside the outer cylinder by caulking the outer cylinder and the outer cylinder to form a bottom portion. And an annular pressing plate that is placed on the welding wire coil and moves downward as the welding wire coil decreases, and the pressing plate has an outer diameter of a portion on the lower surface side of the outer cylinder. The outer diameter of the portion on the upper surface side is smaller than the minimum inner diameter, and is larger than the minimum inner diameter of the outer cylinder and smaller than the maximum inner diameter of the outer cylinder.

  In the present invention, since the outer diameter of the lower surface side portion of the pressing plate is smaller than the minimum inner diameter of the outer cylinder, that is, the inner diameter of the caulking portion, this portion enters the caulking portion, and the caulking portion and the weld below the caulking portion. You can hold the wire. Thereby, even if it does not raise a bottom etc. like the conventional welding wire storage container, it can unwind smoothly, without producing a tangle and a tangle up to the welding wire of the lowest layer.

  In the welding wire storage container of the present invention, the welding wire is laminated so that a cylindrical cavity is formed in the center while moving the central axis along a circular orbit, and the pressing plate is, for example, It is mounted coaxially with the cavity of the welding wire coil.

  Further, the welding wire storage container of the present invention may have an inner cylinder fixed on the bottom plate and disposed coaxially with the outer cylinder inside the outer cylinder. The inner diameter is preferably larger than the outer diameter of the inner cylinder.

  Further, the pressing plate may be a laminate of a plurality of annular flat plates formed of paper or plywood, or may be formed of resin.

  Still further, the unwinding end portion of the welding wire coil is locked to the upper portion of the outer cylinder, and the unwinding end portion of the locked welding wire coil and the next unwinding container are accommodated. It is also possible to continuously unwind a plurality of welding wire coils by joining the unwinding start end portions of the welding wire coils.

  Furthermore, the welding wire storage container of the present invention includes a plurality of strings arranged between the outer cylinder and the welding wire coil and extending in a height direction of the outer cylinder, the plurality of strings and the outer cylinder. And an annular ring disposed coaxially with the outer cylinder and held in the shape of the pressing plate. Thereby, since it is possible to prevent the welding wire from jumping out from the gap between the outer cylinder and the pressing plate, the lowermost welding wire can be smoothly unwound without causing entanglement and entanglement.

  The welding wire with a container according to the second invention of the present application is characterized in that a coil of the welding wire is accommodated in the aforementioned welding wire storage container.

  According to the present invention, since the outer diameter of the lower side portion of the pressing plate is smaller than the minimum inner diameter of the outer cylinder, i.e., the inner diameter of the caulking portion, this portion enters the caulking portion, and the caulking portion and the lower portion thereof. Since the welding wire can be pressed, the lowermost welding wire can be smoothly unwound without causing entanglement and entanglement.

  Hereinafter, a welding wire container according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing a welding wire storage container of the present embodiment. The welding wire storage container of the present embodiment is caulked slightly above the lower end portion of the cylindrical outer cylinder 1, and a bottom plate 4 that forms the bottom of the container is fitted in the immediate lower part of the caulking part to form the outer cylinder. 1 is held inside. The bottom plate 4 is fixed to the outer tube 1 by a metal reinforcing band (not shown) that wraps the caulked portion of the outer tube 1 and the bottom surface of the bottom plate 4. In general, since a welding wire of 250 to 500 kg is accommodated in the welding wire storage container, a safe and strong structure is required during transportation and hanging transfer. For this reason, from the viewpoint of weight reduction and electrical insulation, the outer cylinder 1 in the welding wire storage container of the present embodiment is formed of thick paper or the like.

  In the welding wire storage container of this embodiment, the case where the cylindrical inner cylinder 6 smaller in diameter than the outer cylinder 1 is arranged coaxially with the outer cylinder 1 inside the outer cylinder 1 is shown. The lower end of the tube 6 is fixed on the bottom plate 4. The welding wire 10a is wound and stored on the bottom plate 4 while moving and displacing the central axis along a circular locus.

  Furthermore, the welding wire storage container of the present embodiment includes a pressing plate 2 that is placed on the wound welding wire coil 10. FIG. 2A is a perspective view showing the shape of the pressing plate 2, and FIG. 2B is a side view thereof. As shown in FIGS. 2 (a) and 2 (b), the pressing plate 2 is an annular flat plate having a larger outer diameter at one end than at one end, and is made of, for example, cardboard or plywood. For example, it is formed by joining the annular flat plate 2a and the annular flat plate 2b having an outer diameter larger than that of the annular flat plate 2a and equal to the annular flat plate 2a.

  The holding plate 2 has an inner diameter r2 larger than the outer diameter of the inner cylinder 6, a minimum outer diameter r3 smaller than the minimum inner diameter of the outer cylinder 1, that is, an inner diameter of the caulking portion, and a maximum outer diameter r1 of the outer cylinder 1. It is larger than the inner diameter of the caulking portion and smaller than the maximum inner diameter of the outer cylinder 1. Specifically, regardless of the maximum inner diameter of the outer cylinder 1, the outer diameter of the inner cylinder 6 is 310 mm. For example, when the maximum inner diameter of the outer cylinder 1 is 500 mm, the minimum inner diameter of the outer cylinder 1 is 480 mm, and the holding plate 2 The inner diameter r2 is preferably 322 to 328 mm, the minimum outer diameter r3 is 470 to 475 mm, and the maximum outer diameter r1 is preferably 489 to 491 mm. Further, the thickness t of the presser 2 can be appropriately set according to the height of the caulking portion of the outer cylinder 1, and is, for example, 17 to 20 mm. Furthermore, the mass of the pressing plate 2 is, for example, 400 to 800 g when the welding wire is a flux-cored wire.

  The presser plate 2 is disposed so that the surface having the smaller outer diameter is the lower surface. A resin film such as a laminate film is attached to the lower surface of the presser plate 2. Accordingly, the welding wire can be smoothly unwound, and moisture adsorbed on the cardboard or the like can be hardly transmitted to the welding wire, so that rusting can be prevented. Moreover, since the slidability of the wire at the contact surface between the welding wire coil 10 and the pressing plate 2 is improved, the tangling of the wire can be prevented.

  Furthermore, a gap is prevented from being formed between the pressing plate 2 and the outer cylinder 1 on the inner surface of the outer cylinder 1 of the welding wire storage container of the present embodiment, and from the outer periphery side of the welding wire coil 10 when unwinding. In order to prevent the welding wire from jumping out, a plurality of strings 5 extending in the longitudinal direction of the outer cylinder 1, that is, in the height direction of the welding wire coil 10 may be attached. In that case, the string 5 is disposed between the welding wire coil 10 and the holding plate 2 and the outer cylinder 1. Further, even when a plurality of sponge plates are provided at substantially equal intervals on the outer peripheral portion of the pressing plate 2 as in the conventional pressing plate 112 shown in FIG.

  Furthermore, as described above, when a plurality of strings 5 are attached, a ring 3 having a circular longitudinal section is arranged coaxially with the outer cylinder 1 on the pressing plate 2. The ring 3 is disposed between the string 5 and the outer cylinder 1, is held on the upper surface of the pressing plate 2 via the string 5, and moves following the pressing plate 2.

  Next, the operation of the welding wire storage container of the present embodiment configured as described above, that is, a method for storing the welding wire in the container and a method for unwinding the welding wire in the container will be described. First, when the welding wire is accommodated in the container, the welding wire is laminated on the bottom plate 4 while moving and displacing the central axis along the circular orbit from below to above. A presser plate 2 is coaxially placed on the laminated welding wire coil 10, and a ring 3 is placed between the upper string 5 and the outer cylinder 1, so that the container-containing welding wire is placed. become.

  Further, when transporting and storing the container-containing welding wire wound and stored by the above-described method, a lid (not shown) is put on the upper end portion of the outer cylinder 1. At that time, a paper spacer (not shown) is disposed between the pressing plate 2 and the lid. Then, the welding wire coil 10 is pressed downward by the pressing plate 2, the ring 3 and the spacer. As a spacer used in the welding wire storage container of the present embodiment, for example, a square tube having a smaller diameter than the square tube in a square tube in which one or a plurality of strings or belt-like elastic members are stretched. Is used, and this small-diameter square tube projects from the large-diameter square tube. Since the lower end portion of the small-diameter square tube is held by an elastic member stretched in the large-diameter square tube, the spacer has a height at which the small-diameter square tube protrudes between the lid and the holding plate 2. It can be changed according to the distance. For this reason, even if the winding of a wire becomes tight by the vibration etc. at the time of movement and the height of a welding wire coil becomes low, a welding wire coil can be pressed below. Thereby, it is possible to prevent the welding wire coil from being unwound by vibration during movement and causing entanglement and entanglement during unwinding.

  On the other hand, when unwinding the welding wire 10a, after the lid and the spacer are removed, the end of the wire at the time of winding is drawn from between the inner cylinder 6 and the holding plate 2, and this portion is used as a starting wire for unwinding. The coil 10 is unwound from the upper layer toward the lower layer. At this time, the holding plate 2 and the ring 3 move downward as the height of the welding wire coil 10 decreases.

  In the welding wire storage container of the present embodiment, the outer diameter of the lower surface side portion of the presser plate 2 is smaller than the inner diameter of the caulking portion of the outer cylinder 1, and therefore the portions with the smaller outer diameter (annular flat plates 2 a and 2 b ) Enters the caulking portion and can also press the caulking portion and the welding wire coil 10 below the caulking portion. As a result, even if the bottom is not raised like the conventional welding wire storage container, the lowermost welding wire can be smoothly unwound without causing entanglement and entanglement. As a result, the supply does not stop during use, which is effective when a plurality of container-containing welding wires are used continuously.

  Moreover, in the welding wire storage container of this embodiment, since the string 5 is arrange | positioned so that the clearance gap between the pressing plate 2 and the outer cylinder 1 may not arise, the part by the side of the outer cylinder 1 of a welding wire coil It is possible to prevent the wire from jumping out.

  Furthermore, in the welding wire storage container of this embodiment, since most of the upper surface of the welding wire coil is covered by the pressing plate 2, moisture is difficult to enter the welding wire coil 10, and the rust prevention effect of the welding wire is achieved. Are better.

  Note that the holding plate 2 of the welding wire storage container of the present embodiment can also be applied to a welding wire storage container in which the inner cylinder 6 is not provided inside the outer cylinder 1. FIG. 4 is a cross-sectional view showing a welding wire storage container having no inner cylinder. As shown in FIG. 5, when the inner cylinder 6 is not provided inside the outer cylinder 1, the welding wire 10 a is inserted through a drawing hole 2 c provided in the holding plate 2 and drawn out.

  Next, the welding wire storage container which concerns on the modification of this embodiment is demonstrated. FIG. 5 is a perspective view showing the shape of the pressing plate in the welding wire storage container of the present modification. In the welding wire storage container of the first embodiment described above, the presser plate 2 formed by laminating a plurality of annular flat plates made of corrugated cardboard or plywood is used, but the present invention is limited to this. Instead, for example, as shown in FIG. 5, PP (Polypropylene) resin, ABS (Acrylonitrile-Butadiene-Styrene) resin, PET (Poly-Ethylene-Terephthalate) resin, ST A pressing plate 12 formed by injection molding or the like of (Styrene; styrene) resin, PE (Poly-Ethylene; polyethylene) resin, or the like can also be used.

  As with the above-described presser plate 2, the presser plate 12 has an inner diameter r2 larger than the outer diameter of the inner cylinder 6, a maximum outer diameter r1 smaller than the maximum inner diameter of the outer cylinder 1, and a minimum outer diameter r3 of the outer cylinder. 1 is smaller than the minimum inner diameter. Specifically, regardless of the maximum inner diameter of the outer cylinder 1, the outer diameter of the inner cylinder 6 is 310 mm. For example, when the maximum inner diameter of the outer cylinder 1 is 500 mm, the minimum inner diameter of the outer cylinder 1 is 480 mm. It is preferable that the inner diameter r2 of the plate 12 is 322 to 328 mm, the minimum outer diameter r3 is 470 to 475 mm, and the maximum outer diameter r1 is 489 to 491 mm. Further, the thickness t of the presser 12 can be appropriately set according to the height of the caulking portion of the outer cylinder 1, and is, for example, 17 to 20 mm. Furthermore, the mass of the pressing plate 12 is, for example, 400 to 800 g. For example, when applied to a solid wire having a diameter of 1.2 mm or 1.4 mm, a weight is attached to the pressing plate 12 and the total mass thereof. Is preferably about 1100 to 1500 g. Thus, by forming the pressing plate 12 with resin, the shape is stable and the surface smoothness is excellent, so that the welding wire can be stably unwound and manufactured at low cost. be able to.

  The configuration of the welding wire storage container of the present modification is the same as that of the first embodiment described above except that the pressing plate 12 formed by injection molding of resin is used. Accordingly, the welding wire can be accommodated in the same manner as the welding wire storage container of the first embodiment described above to form a container-containing welding wire, and the lowest level welding wire can be obtained without causing entanglement and entanglement. Unwind smoothly.

It is sectional drawing which shows the welding wire storage container of embodiment of this invention. (A) is a perspective view which shows the shape of the pressing plate in the welding wire storage container of embodiment of this invention, (b) is the side view. It is sectional drawing which shows the state which the pressing plate fell to the lower layer part. It is sectional drawing which shows the welding wire storage container without an inner cylinder. It is a perspective view which shows the shape of the pressing plate in the welding wire storage container of the modification of embodiment of this invention. (A) is a perspective view which shows the conventional welding wire with a container typically, (b) is the sectional drawing. (A) And (b) is a perspective view which shows the holding plate of the conventional welding wire storage container. It is sectional drawing which shows a part of conventional welding wire storage container by which the bottom was raised. It is a top view which shows the pressing plate of the welding wire storage container of patent document 5.

Explanation of symbols

1, 101; outer cylinder 2, 12, 102, 112, 120; holding plate 2a, 2b, 121; annular flat plate 2c; extraction hole 3,103; ring 4, 105; bottom plate 5, 108; string 6, 106; Tube 10, 100; Welding wire coil 10a, 100a; Welding wire 109; Disc 107; Clamp 112a; Sponge plate 122;

Claims (8)

In a welding wire storage container for storing a coil of a welding wire, an outer cylinder, a bottom plate which is held inside the outer cylinder by caulking the outer cylinder and forms a bottom portion, and is placed on the welding wire coil. An annular pressing plate that moves downward as the number of welding wire coils decreases, and the pressing plate has an outer diameter of a lower surface portion smaller than a minimum inner diameter of the outer cylinder, and an outer surface of the upper surface portion. A welding wire storage container having a diameter larger than a minimum inner diameter of the outer cylinder and smaller than a maximum inner diameter of the outer cylinder. The welding wire is laminated such that a cylindrical cavity is formed in the center while moving the central axis along a circular orbit, and the pressing plate is placed coaxially with the cavity of the welding wire coil The welding wire storage container according to claim 1, wherein the container is a welding wire storage container. The inner cylinder fixed on the bottom plate and disposed coaxially with the outer cylinder inside the outer cylinder, wherein the inner diameter of the pressing plate is larger than the outer diameter of the inner cylinder. The welding wire storage container according to 1 or 2. The welding wire storage container according to any one of claims 1 to 3, wherein the pressing plate is a laminate of a plurality of annular flat plates formed of paper or plywood. The welding wire storage container according to any one of claims 1 to 3, wherein the pressing plate is made of resin. The unwinding terminal portion of the welding wire coil is locked to the upper part of the outer cylinder, and the unwinding terminal portion of the locked welding wire coil and the welding wire coil housed in the container to be unwound next. The welding wire storage container according to any one of claims 1 to 5, wherein the unwinding start end portion is joined and a plurality of welding wire coils are continuously unwound. A plurality of strings arranged between the outer cylinder and the welding wire coil and extending in the height direction of the outer cylinder, and arranged coaxially with the outer cylinder between the plurality of strings and the outer cylinder The welding wire storage container according to claim 1, further comprising an annular ring that is held in the shape of the pressing plate. A welding wire containing a container, wherein a welding wire coil is stored in the welding wire storage container according to any one of claims 1 to 7.

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