JP2000053325A - Wire contained in pail vessel for welding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire contained in a pail vessel for welding capable of preventing jumping up and jumping out of the wire when the wire for welding is pulled out, preventing twisting of wires securely, and pulling out the wire straight and smoothly. SOLUTION: This wire contained in a pail vessel for welding is constituted in such a way that the wire for welding 2 is accumulated and stored like a coil in a pail vessel 1 and a pressing member 3 is put on a coillike wire accumulated body. The pressing member 3 has a longitudinal wall part 4 like a belt plate which is brought into contact with an inner wall of an outer cylinder of the pail vessel 1 in which the wire for welding 2 is stored and a plurality of elastic inward pieces 5 bent inward and extended at a predetermined interval from a lower end of the longitudinal wall part 4 and are tapered from a bottom part continuous with the lower end of the longitudinal wall part 4 toward a vertical angle part in a tip part. The elastic inward piece 5 is formed into a shape of substantially unequalsided triangle in which the vertical angle part is deviated in the direction of pulling out of the wire for welding 2 for a reference line 7 extending from a central point in the bottom part into a face of the inward piece 5 in the orthogonal direction. A wire pressing pressure is set to 5 gram or more and 100 gram or less.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire for a welding pail container, which enables a welding wire to be drawn out smoothly and sequentially.

[0002]

2. Description of the Related Art In order to enable continuous withdrawal of a welding wire housed in a coil container in a state of being stacked in a coil shape, while effectively preventing jumping and entanglement as well as jumping and jumping. Typical prior art on this kind of wire in a welding pail container is disclosed in
It is publicly known as listed in JP-A-13489.

According to the above prior art, as shown in FIG. 6, a holding member 13 is mounted on a wound and laminated wire and disposed along the inner wall of an outer cylinder 11 (see FIG. 5) of a container. Annular vertical wall portion 14 extending inward from the lower end of the vertical wall portion 14 and elastically abutting against the outer wall of an inner cylinder (not shown) of the container, and the vertical wall portion being repelled by the abutting force. Part 14 is outer cylinder 1
It is formed by a number of elastic inward pieces 15 abutting on one inner wall.

In such a holding member, the elastic inward piece 15 has a substantially isosceles triangular tapered shape, and when it is rolled into an annular shape on a coiled welding wire in a container, a large number of elastic inward pieces 15 are formed. The inward piece 15 is a vertex portion 15B at the tip.
Are arranged on the welding wire so as to be aligned in the cylinder radial direction toward the center of the container, and serve to prevent the drawn-out welding wire from jumping up.

When this pressing member is applied to a container commonly called a pail pack having only an outer cylinder and no inner cylinder, the apex portion has a free end without any abutting member, and it is difficult to use a welding device for welding. Due to the fact that it is not easy to maintain the pressing force of the elastic inward piece 15 acting on the wire at an appropriate value, the wire is pulled out collectively in two or three loops despite the provision of the pressing member, There was a problem of entanglement and entanglement.

[0006]

As disclosed in the above-mentioned prior art as means for solving such a problem, as shown in the prior art, a wire holding weight which is formed separately from the holding member and has a ring shape is provided with a number of elastic inward pieces 15. The elastic inward piece 15 is placed on the upper surface of the
Is prevented from being bent more than necessary. However, the weight for holding the wire is not sufficiently effective in preventing the deformation of the light weight.
On the other hand, if the wire is heavy, a large force is required to pull out the wire, so that not only is the wire not drawn out smoothly, but also plastic deformation such as bending is given to the wire, and the straightness during wire feeding is poor. Therefore, it is necessary to pay close attention to the design of the wire holding weight, which is troublesome.

[0007] On the other hand, in order to enable the intended smooth pull-out only with the holding member without using such a wire holding weight, various examinations on the material surface such as its material and weight are repeated. However, the shape of the elastic inward piece 15 such as shape, size, number, etc. has a great effect on effectively preventing abnormal withdrawal such as jumping, entanglement or jumping out of the wire. Although it turns out that this is the case, the fact is that it has not yet been clarified technically.

The present invention has been made in order to solve such a problem, and a main object of the present invention is to prevent the wire from jumping up and out when the welding wire is pulled out. Into a welding pail container that prevents in advance and also reliably prevents entanglement between wires, and prevents plastic deformation such as bending to the wire, so that the wire can be drawn out smoothly. It is to provide a wire.

Another object of the present invention is to make it possible to reliably prevent the wire from jumping up and out without using a wire holding weight, which was conventionally required, and to realize a stable wire withdrawal. It is an object of the present invention to provide a wire in a welding pail container.

Still another object of the present invention is to prevent occurrence of an abnormal state such as entanglement of a wire, plastic deformation of a wire, etc. by finding specific conditions concerning the form of an elastic inward piece in a holding member. And to realize a smooth wire feeding.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, a welding wire is stacked and housed in a coil container in a coil shape, and the coiled wire laminate is provided. In a wire containing a welding pail container having a holding member mounted thereon, the holding member is a strip-shaped vertical wall portion abutting on an outer cylinder inner wall of the pail container in which the welding wire is stored, A plurality of elastic inward pieces extending inwardly from the lower end of the vertical wall at a required interval and extending from the bottom portion connected to the lower end of the vertical wall toward the apex of the tip. Having the elastic inward piece,
The vertex portion is formed in a substantially trapezoidal triangular shape in which the apex portion is shifted in a drawing direction of the welding wire with respect to a reference line extending in a direction perpendicular to the plane of the inward piece from the center point of the bottom portion. The pressure is set to 5 g or more and 100 g or less.

Here, the meaning of "tapered shape" in the elastic inward piece does not have to be strictly tapered from the bottom portion, and the distal end 1 of the length H of the elastic inward piece (see FIG. 3).
It is sufficient that / 2 or more is tapered. In short, it suffices that the portion with which the wire pulled out when the wire is pulled out is tapered. Further, the term “substantially trapezoidal triangle shape” is not limited to a strict triangle, but may have a wide range including a trapezoidal triangle and a shape approximating the trapezoidal triangle. I do.

The wire pressing force means a pressing force applied to the wire from the pressing member when the wire is pulled out. If this force is too small, it is not possible to prevent the wire from jumping. If it is too large, the wire is bent and plastic deformation occurs. As shown in FIG. 7, the wire pressing force is such that the elastic inward piece 5 is fixed at a bottom portion of a range C of 10 mm from the end of the bottom portion and is held in a cantilevered state so as to be horizontal.
It refers to the weight of the weight when the displacement X when the weight is suspended at a position d 80 mm from the end of the bottom portion of the elastic inward piece 5 becomes 60 mm.

With such a configuration, it is possible to hold the wire to be pulled out with more elastic inward pieces while maintaining the force for holding down the welding wire without giving plastic deformation such as bending to the wire. Smooth wire feeding can be performed, and the amount of wire slack between the wire drawing point on the storage pail container and the drawing start portion of the coiled laminated wire can be reduced, thereby preventing the occurrence of kink and tangling.

The larger the amount of deviation of the apex portion with respect to the reference line, the more the elastic inward piece that holds out the drawn wire tends to increase. Become. Therefore, as in the configuration of the invention according to claims 2 to 6 of the present invention, the vertical wall portion has a strip shape longer than the inner peripheral length of the outer cylinder of the pail container in which the welding wire is stored. And a relational expression of 0.4 × L ≦ l ≦ L is satisfied between the shift amount l (small el, hereinafter the same, see FIG. 3) and the side length L of the base portion. The intersection angle θ between the longer oblique side located on the upper side in the wire drawing direction and the reference line is 13 ° to 50 °.
°, preferably 20 ° to 40 °, between the length H of the elastic inward piece and the lamination width W of the welding wire, W ≦ H ≦
By setting each unique condition that the relational expression of 1.8 × W is satisfied, it is possible to perform smoother and more stable wire feeding. Furthermore, in the present invention, since the pressing force of the pressing member is appropriately set, application to a flux-cored wire that is easily plastically deformed as described in claim 7 is particularly effective.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. In each of the drawings, FIG. 1 is a cross-sectional view of a wire in a welding pail container, FIG. 2 is a side view of a holding member, and FIG.
FIG. 4 is a plan view corresponding to FIG.

In FIG. 1, reference numeral 1 denotes a pail container provided with an outer cylinder, for example, an outer cylinder having a bottomed upright cylinder, and twisted welding wires are stacked and housed in a coil shape in the inner space of the container 1. ing. Reference numeral 2 denotes a wire contained in a welding pail container (hereinafter abbreviated as a wire). A holding member 3 is placed on the upper end of the wire 2 to prevent the wire from jumping up when the wire is pulled out.

The holding member 3 is preferably made of an elastic material, and is integrally formed into a desired shape including one vertical wall portion 4 and a plurality of elastic inward pieces 5. The vertical wall portion 4 has a strip shape and is a portion that comes into contact with the inner wall of the outer cylinder of the pail container 1 by surface contact, and is slightly longer than the inner peripheral length of the outer cylinder of the pail container 1. It is desirable to form a belt-like shape only long. The plurality of elastic inward pieces 5 are bent inward at right angles from the lower end of the vertical wall portion 4 at predetermined intervals, and extend from the bottom portion 5A connected to the lower end of the vertical wall portion 4 so as to have rounded tips. The tapered portion 5B is a portion tapered toward the apex angle portion 5B and placed along the upper surface of the wire 2 in the pail container 1.

In the holding member 3 having such a structure, the elastic inward piece 5 has a substantially trapezoidal triangular shape, and extends from the center point of the base 5A in the plane of the inward piece 5 in a direction perpendicular to the base. Apex angle portion 5B with respect to reference line 7
Is shifted in the direction in which the wire 2 is pulled out.
The two hypotenuses extending between the bottom part 5A and the apex part 5B are:
The upper oblique side 6A is longer than the lower oblique side 6B with respect to the drawing direction of the wire 2.

The material of the pressing member 3 is polyester resin, polypropylene resin, vinyl chloride resin,
Polycarbonate, polyethylene terephthalate (PE
A material having appropriate elasticity such as T) and having sufficient strength against repeated bending is preferable. In addition, since there are many occasions of use in a relatively cold place, it is also preferable to use a material having sufficient strength under low-temperature use conditions. Further, in the present invention, the elastic inward piece 5 means a material which returns to its original state even when bent by wire drawing, and is not limited to resin, and may be a thin metal plate.

The holding member 3 is mounted on the upper surface of the wire 2 in the pail container 1 by being rolled into an annular shape.
The wire 2 rotates while being in contact with the peripheral edge of the elastic inward piece 5 of the holding member 3 from the upper end of the coiled wire laminate, and is drawn upward. At this time, the elastic inward piece 5 in contact with the wire 2 undergoes some deformation, whereby the corresponding vertical wall portion 4 is more strongly contacted by the inner wall of the outer cylinder, and the wire 2 is drawn out longer than necessary. While preventing
The holding member 3 can be satisfactorily lowered, and thus the wire 2 can be pulled out smoothly and stably without entanglement or entanglement.

By the way, the shape of the elastic inward piece 5 of the holding member 3 has a considerable effect on the entanglement and entanglement of the wire 2, and the reference line 7 of the apex angle portion 5B.
Various experiments have shown that the product of the present invention, in which the shift amount l is appropriately set, is more effective in performing smooth wire feeding than the conventional product in which the shift amount l is 0 with respect to. It turned out. The experimental results of examining the shift amount l and the smoothness of wire feeding are as shown in Table 1 below.

[0023]

[Table 1] Note 1: Unstable wire feeding: The amount of slack in the wire between the wire withdrawal point on the pail container and the start of the lamination wire withdrawal increases, and kinks and tangles easily occur. ○: Very stable, ：: Stable, ×: Unstable, Note 2: Smoothness of holding member: When the amount of displacement from the reference line increases, the number of elastic inward pieces that hold down the wire that is going to lift increases. More, the wire is pulled out smoothly. ○○: Very smooth, ○: Smooth, ×: Not smooth,

As is apparent from Table 1, the shift ratio (the ratio of the shift amount 1 to the side length L of the bottom portion 5A) is 167.
%, The force for holding down the wire decreases, causing entanglement and entanglement. Regarding the smoothness of wire feeding, the shift ratio (intersection angle between the upper oblique side 6A and the reference line 7) θ) is shifted from a shift ratio of 17% (intersection angle θ: 16 °) to a shift ratio of 150% (intersection angle θ: 4).
6 °), and the shift ratio is 67%.
It was found that the effect was most remarkable around (intersection angle θ: 30 °).

In the present invention, it is necessary that the wire pressing force of the pressing member is not less than 5 grams and not more than 100 grams. The wire pressing force is defined by the pressing force per elastic inward piece measured by the above-described method shown in FIG. In this case, if the pressing force is less than 5 grams, the force for holding down the wire is too small to prevent the wire from jumping up and the like, causing tangling and tangling when the wire is pulled out. On the other hand, when the pressing force exceeds 100 grams, the wire is bent more than necessary and plastic deformation occurs in the wire, and the straightness of the wire deteriorates.

As a result of various experiments, the present inventors have found that the pressing force applied to the wire pulled out when the wire is pulled out is reduced by one.
It was found that plastic deformation did not occur in the wire if it was within 00 grams, and the upper limit of the pressing force was set to 100 grams. still,
The reason why the measurement position of the pressing force is set to the position 80 mm from the bottom of the elastic inward piece is that this position corresponds to the innermost part (inner diameter φi of the laminate) of the coiled wire laminate, and the wire is mainly moved from this position. This is because it starts to contact the elastic inward piece and receives a pressing force.

In the present invention, by setting the upper limit of the pressing force to 100 grams, even if the wire is repelled by a force of 120 grams, the elastic inward piece of the pressing member is greatly deformed, and the wire is pressed by a force of 100 grams or more. Since there is no pressing, bending (plastic deformation) does not occur in the wire.

In the present invention, the pressing member restrains the wire only by deformation of the member (elastic inward piece), and prevents the entire pressing member from floating when the wire is pulled out. Therefore, the weight of the entire holding member may be appropriately adjusted according to the strength of the jumping-up force of the wire. As a means for adjusting the weight, for example, a band-shaped thick paper for adjusting the weight is joined along the peripheral surface of the vertical wall portion of the pressing member, or an annular member such as resin or metal is placed on the outermost peripheral portion of the pressing member. You may.

[0029]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the wire for a welded pail container according to the present invention, it is desirable that the holding member 3 is formed in an end strip shape having a predetermined length. The end-band shape enables use even if the diameter of the outer cylinder of the pail container 1 is slightly changed as compared with the endless annular shape, and has the advantage that no space is required for storage and transportation. Then, when set in the pail container 1, the both ends are overlapped to be used in an annular shape. Needless to say, the ends may be joined to form an endless band when the tray is set in the pail container 1.

With respect to a specific mode of the holding member 3 in the welding pail container wire according to the present invention, for example, when the height of the vertical wall portion 4 is 55 mm, the side of the bottom portion 5A of the elastic inward piece 5 The length L is 60 mm, the length is 110 mm, and the overlapping margin at both ends when using the ring is 120 mm, which is twice the side length L, and the entire length of the vertical wall portion 4 is the circumference of the outer cylinder of the pail container 1. It is appropriate to select a length substantially corresponding to the sum of the length and 120 mm.

The length H of the elastic inward piece 5 (the height of the vertex 5B from the base 5A) and the lamination width W of the wire 2 (1/3 of the difference between the outer diameter φo and the inner diameter φi of the coiled wire laminate). 2)
Preferably satisfies the relational expression of W ≦ H ≦ 1.8 × W, and H = 1.25 W is a condition that is optimal. Also,
In general, if the length H of the elastic inward piece 5 is too short, the wire 2 will climb over the elastic inward piece 5 and may cause kink or entanglement. The contact of the elastic inward piece 5 becomes strong, causing the elastic inward piece 5 to break. Therefore, it is preferable that the range satisfying the above equation is satisfied, and the length H of the elastic inward piece 5 is equal to the lamination width W of the wire 2.
It has been found that an increase of about 25% is optimal.

FIG. 3 is a plan view showing the form of the pail container 1 in which the wire 2 is stored, with respect to the relationship between the crossing angle θ of the elastic inward piece 5 of the holding member 3 placed in an annular shape and the pressing on the wire 2. 4 and FIG. 5 which is a plan view corresponding to FIG. 4 in a case where a conventional pressing member is used. Normally, the wire 2 to be pulled out is pressed against the inner wall of the pail container 1 at a position 180 ° on the near side with respect to the position a to be pulled out, and then pulled out. Similarly, the holding member 3 is also pressed against the inner wall of the pail container 1 by a reaction force of the pulling force of the wire 2 at a position substantially corresponding to the position B approximately half a ring before the position A.

However, it has been found that the position where the pressing member 3 is pressed against the inner wall of the pail container 1 differs depending on the intersection angle θ. That is, as shown in the above [Table 1], it is apparent from the results of the experiment that the angle between 16 ° and 46 ° is appropriate, and the position where the pressing member 3 is pressed against the inner wall of the pail container 1 at this time is As compared with the position of the conventional holding member 3, the wire 2 is separated at the position a where the wire 2 is pulled out, whereby the holding of the holding member 3 becomes smooth and the stability of wire feeding is improved. is there.

[0034]

[Table 2]

Table 2 above shows the results of investigations on the straightness of the wire and the occurrence of entanglement and entanglement of the wire when the wire pressing force on the elastic inward piece 5 of the holding member 3 is variously changed. For straightness evaluation, pull out the wire in the same state as when welding from a pail container containing the wire,
Measure the runout of the wire from the tip of the welding tip at regular intervals,
The deflection range of the wire was expressed as an area based on the time when the pressing force was 0, and evaluated. The used wire is JIS Z33
13 YFW-C50DR applicable Wire diameter 1.2mm,
The pressing force was adjusted by changing the thickness, material, and crossing angle θ of the pressing member 3.

As is clear from Table 2, the pressing force is 5
Test No. 11, which is less than gram, had good straightness, but the pressing force was too small, causing entanglement and entanglement.
Test Nos. 7 to 10 have poor straightness because the pressing force exceeds 100 g and is too large. In Test Nos. 9 and 10 where the pressing force was particularly large, entanglement and entanglement also occurred.

On the other hand, Test No. 2 showing the example of the present invention
Samples Nos. 6 to 6 had good straightness, and samples Nos. 2 to 4 having a pressing force of 5 to 60 g had particularly good straightness. In Table 2, in the evaluation of the straightness, those having an area increase of 5% or less with respect to the base test number 1 were evaluated as ○.
、, those within 15% were rated as ○. The test was performed on 50 kg of the wire.

In the wire in a welding pail container according to the present invention, the above-described configuration enables the wire to be smoothly drawn out only by using the holding member 3 alone. It does not prevent the use of weights. In addition, by forming the vertical wall portion 4 to be thicker than the elastic inward piece 5 or by attaching thick paper to have its own weight, the pressing member 3 is lowered with good followability to the drop of the wire 2. It is possible, and such modifications are also included in the scope of the present invention. Further, the present invention is not limited to the flux-cored wire, but can be applied to a solid wire.

[0039]

The present invention has the above-described structure and functions, and in a wire contained in a welding pail container, has an excellent effect of drawing out the stacked welding wires. It is possible to smoothly pull out the welding wires sequentially without causing entanglement or entanglement and to feed the welding wires stably. The straightness of the drawn wire is also good.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a wire in a welding pail container according to an example of an embodiment of the present invention.

FIG. 2 is a side view of the pressing member shown in FIG.

FIG. 3 is a plan view of a holding member shown in FIG. 1;

FIG. 4 is a plan view corresponding to FIG.

FIG. 5 is a plan view corresponding to FIG. 4 when a conventional pressing member is used.

FIG. 6 is a plan view of a conventional holding member.

7A and 7B are diagrams showing a method of measuring a pressing force, wherein FIG. 7A is a side view, and FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pail container 2 ... Pair winding welding wire, 3 ... Holding member, 4 ...
Vertical wall part, 5 ... Elastic inward piece, 5A ... Bottom part, 5B ... Vertical angle part, 6A ... Upper slope, 6B ... Lower slope, 7 ... Reference line,

Continued on the front page (72) Inventor Shinji Komatsu 100-1 Urakawachi, Miyama-ji, Fujisawa-shi, Kanagawa F-term in Kobe Steel, Ltd. Fujisawa Works 3F058 AA04 AB03 AC00 AC06 BB19 CA01 EA03 EB02 EB09 3F111 AA09 AB02 BA02 BB07

Claims (7)

[Claims] 1. A wire in a welding pail container, wherein a welding wire is stacked and accommodated in a coil shape in a pail container, and a holding member is placed on the coiled wire laminate.
The holding member is a strip-shaped vertical wall portion that is in contact with the inner wall of the outer cylinder of the pail container in which the welding wire is stored, and is bent inward at a required interval from the lower end of the vertical wall portion. Extending, and has a plurality of elastic inward pieces tapering from the bottom portion connected to the lower end of the vertical wall portion toward the apex portion of the distal end portion, the elastic inward pieces from the center point of the bottom portion The apex portion is formed in a substantially trapezoidal shape in which the apex portion is shifted in the drawing direction of the welding wire with respect to a reference line extending in a direction perpendicular to the plane of the inward piece, and the wire pressing force is 5 g or more and 100 g or more. A wire containing a welding pail container, wherein the wire is set as follows. 2. The welding pail container according to claim 1, wherein the vertical wall portion has a strip shape longer than an inner peripheral length of the outer cylinder of the pail container in which the welding wire is stored. Wire. 3. The method according to claim 1, wherein a difference between the shift amount 1 of the apex angle portion with respect to the reference line and a side length L of the base portion is 0.4 × L ≦
The wire in a welding pail container according to claim 1, wherein a relational expression of 1 ≦ L is satisfied. 4. An intersection angle θ between a longer oblique side located on the upper side in a drawing direction of a welding wire and a reference oblique line of the two oblique sides extending between the apex angle portion and the bottom side portion is 1.
The wire in a pail container for welding according to claim 1, wherein the angle is 3 ° to 50 °. 5. The wire in a welding pail container according to claim 4, wherein the crossing angle θ is 20 ° to 40 °. 6. The length H of the elastic inward piece (the height of the apex from the bottom) and the lamination width W of the welding wire (1/2 of the difference between the outer diameter φo and the inner diameter φi of the laminate). Between, W ≦ H ≦
Claims 1, 2, 3, and 4 satisfying a relational expression of 1.8 x W.
Or the wire in a welding pail container according to item 5. 7. The welding pail container-containing wire according to claim 1, 2, 3, 4, 5, or 6, wherein the welding wire is a flux-cored wire.